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<li>[http://www.eswarm.com/snowshoeing/what-are-the-best-large-snow-shoes/86/comment-page-205/ http://www.eswarm.com/snowshoeing/what-are-the-best-large-snow-shoes/86/comment-page-205/]</li> | <li>[http://www.eswarm.com/snowshoeing/what-are-the-best-large-snow-shoes/86/comment-page-205/ http://www.eswarm.com/snowshoeing/what-are-the-best-large-snow-shoes/86/comment-page-205/]</li> | ||
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| + | </ul> | ||
| + | |||
| + | == Science Careers Blog July 2007 Archives == | ||
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| + | They've been having some pastime over by the as forum host and moderator Dave Jensen hosted a cowboy wisdom" contest,[http://www.bluelabelonsalejp.com/ バーバリー 財布]. He posted a account of aphorisms and asked posters to favor an alternatively more) and apply it to careers. Several of were beauteous good merely onward poster "Ken") stole the show and carried away the prizes (a cluster of career-related books):<br><br>"Never ask a barber whether he thinks you need a haircut."<br><br>Well, lemme tell y'all about a low point amid my life as young genewrangler. I mean, it was lower than a caterpillar's abdomen I took tofeelin’ favor I been rode hard and hung up rainy I looked approximately mylittle age laboratory and I begin to wonderin’ whether there ain’t somethin’else out there. My wonderin’ edge to thinkin’ and my thinkin’ got metalkin’ about looking outside of this here little fenced in patch ofdirt. <br><br>The brain of the laboratory, a lifelong cowboy gets to hearin’ meand he pulls me aside an daytime and he says, “Why don’t you saddle upbeside me, hoss. We’re gonna have ourselves a mini talk.” <br><br>Well, he ain’t never taken much interest among my wonderin’s ahead so I advert “Well, that would be sturdy fine!” <br><br>He sits me down and he points his finger distant outdoor the fences ofour mini laboratory to a blot out there aboard the horizon and he says,“Beautiful,[http://www.dieselonsaletokyo.com/ ディーゼル 時計 メンズ], ain’t she?” <br><br>“Yeah,” I agreed. “I been wonderin’ what’s out there. You reckonthere ain’t other jobs out there as a guy what been wranglin’ up genesfor resemble ten turns of the seasons? I mean, there ain’t been no jobopenin’ up to escape my own herd ‘round these parts. A man gets tothinkin’ whether perhaps there ain’t somethin’ else he’s suited to.” <br><br>Well, his face got more serious than a junebug among a glass ofsasparilla, and he says to me, “Hoss, there ain’t nothin’ out there foryou. Them other ranches are institutionalized. Alls they consideration almost isprofits and losses. Young ranch hand prefer you would be eaten up andused. I reckon you should obtain after to your pew quickly You sit tight andkeep aboard wranglin’. Somethin’ll come along quite soon as you. Ain’tnothin’ outdoor these here fences.” <br><br>Well, I got behind to my pew,barely that there sundown well, she keptcallin’ to me. She was so bright from here. Seemed to me that the onlyone gettin’ anything out of always my wranglin’ by the pew was the oldcowpoke who ran this kit Seemed impossible that there weren’tnothin’ out there. Maybe that old cowpoke don’t know what he’s talkin’about. Maybe he does know what he’s talkin’ almost and he impartial deficiency tomake sure that this ranch hand keeps this kit wranglin’. <br><br>So,one day I waited till the boss' backward was turned, and I headedout to that horizon. I swear she never got not closer nomatter how distant Iwent and there's stories to be told virtually that rove and themountains what had to be climbed,[http://www.louboutinforuzonejp.com/ クリスチャンルブタン],barely swear if one daytime I didn’t happento find myself in a current ranch. <br><br>Life amid this ranch was much change Yeah, this ranch had hereyes set on turnin’ a profit,merely I affirm that this weren’t a badthing! Seemed to me, the wranglin' was much the same as I had knownbefore. But,[http://www.louboutinforuzonejp.com/ ルブタン フラッツ], I swear I saw equipment I ain’t never seen ahead Suremade my gene wranglin’ much faster. Damn whether I couldn’t wrangle up somethings that I never thought could be done forward I likewise got myself anoutfit of ranch hands who always pitch surrounded to obtain the wranglin’ done fasterthan a long tailed cat amid apartment full of rockin’ chairs. And, I can’t befor sure,barely it do arise that the bosses of this here ranch absence tomake sure that meantime I bunk down for the night,[http://www.dieselonsaletokyo.com/ Diesel リュック], that my head is a’layin’a mouthful more comfortable so’s I’m rested up for the subsequently day’s genewranglin’. <br><br>I surmise what I’m a’tryin’ to advert namely askin’ a cowboy who ain’tnever been off the ranch if you ought look along other opportunitiesoutside them fences namely prefer askin’ a barber if you need a haircut. | ||
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| + | == Why Your Brain Loves That New Song - ScienceNOW == | ||
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| + | When jazz legend John Coltrane 1st heard Charlie Parker movement the saxophone, the melody beat him "right between the eyes," he once said. According to neuroscientists, Coltrane was precise right. When we listen melody that we like even for the first period a chapter of the brain's award system namely activated, a present study has shown. The region, called the kernel accumbens, determines how much we sum the song—even predicting how much a person namely willing to expenditure as the current alley.<br><br> "It's a lovely, lovely piece of research," says song psychologist David Huron of Ohio State University,[http://www.louboutinforuzonejp.com/ クリスチャンルブタン メンズ], Columbus, who was never involved in the study The results ambition aid scientists understand why humans attach so much amount to abstract sequences of sound waves. "Music is an of those oddball asset he says. "It's never by always explicit that it has any sort of survival value"<br><br> A favorite song,[http://www.bluelabelonsalejp.com/ バーバリーブラックレーベル],if a power rock anthem alternatively a soulful acoustic ballad, evokes a deep emotional response. Neuroscientist Valorie Salimpoor recalls once listening to Johannes Brahms's "Hungarian Dance No.five meantime driving. The melody moved her so profoundly that she had to pluck over. Intrigued at the experience, Salimpoor joined Robert Zatorre by McGill University's Montreal Neurological Institute in Canada to learn how song affects the brain In 2011, she and Zatorre confirmed that dopamine, a award neurotransmitter,is the source of such intense experiences—the "chills"—associated with a favorite chip of song They showed that but likewise equitable a moment before—as whether the pate was anticipating the crescendo to come.<br><br> Salimpoor,immediately by the Rotman Research Institute in Toronto,[http://www.louboutinforuzonejp.com/ ルブタン 激安], Canada, wondered whether the response was due to the melody itself alternatively to participants' emotional attachment to it. She recruited 19 volunteers, 10 men and nine women retired 18 to 37, who shared self-reported dulcet tastes. "Indie" and "electronic" proved highest new Salimpoor played 30-second samples of 60 songs they'd never heard before Within an iTunes-like consumer interface, the volunteers then bid aboard how much they'd be willing to expenditure for every alley up to $2. To acquaint the experiment more realistic, participants used their own money and received a CD of their purchased tracks at the kill of the study.<br><br>Salimpoor monitored how the volunteers' brains reacted to the song using MRI.only onlyactivity in the kernel accumbens was well-correlated to how much the participants were willing to pay she and colleagues report online today in Science.<br><br> The kernel accumbens is believed to be responsible for pleasant surprises,[http://www.bluelabelonsalejp.com/ バーバリーバッグ レディース],or affirmative prediction error," as neuroscientists call it. Our brains are well-suited to using patterns, such as the architecture of melody to foresee the hereafter"We're constantly product predictions,even if we don't know the song Salimpoor says. "We're still predicting how it ought unfold."<br><br> These predictions are based aboard past musical experience, so classical fans will have different expectations than punk devotees. But while the melody turns out better than the head expected, the core accumbens fires off with joy Salimpoor concluded that the kernel accumbens works in concert with pattern recognition and higher-order analysis centers to appoint measure to melody.<br><br> Vinod Menon,[http://www.bluelabelonsalejp.com/ バーバリーブルーレーベル], a cognitive neuroscientist at Stanford University in Palo Alto, California, wonders if the presence of lyrics in some tracks introduced confounding variables. "We don't know whether it's the dulcet sounds alternatively the linguistic components that drove some of these effects," he says. Salimpoor responds that previous research showed similar pate effects using only instrumental melody Lyrics, she says, did not arise to skew listener's purchasing decisions.<br><br> Next, Salimpoor want investigate anew district of the head the superior temporal gyrus. She aims to ascertain how this region, which stores a record of the sounds we've heard, shapes our future musical preferences. Eat your megalopolis out, Pandora. | ||
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| + | == Japanese Guts Are Made for Sushi - ScienceNOW == | ||
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| + | Americans don't have the guts for sushi. At least that's the implication of a current learn which finds that Japanese folk harbor enzymes within their intestinal bacteria that help them digestion seaweed--enzymes that North Americans paucity What's more, Japanese may have 1st acquired these enzymes at eating bacteria that thrive aboard seaweed in the open ocean. <br><br>Mirjam Czjzek didn't set out to compare cross-cultural eating habits. Instead,[http://www.bluelabelonsalejp.com/ バーバリーロンドン], the chemist along the Station Biologique de Roscoff,on the coast of Brittany within France, was interested surrounded what it takes to digest a chip of seaweed. Unlike surrounded land plants, the carbohydrates that tell up seaweed are spangled with molecules of sulfur, so special enzymes are needed to crash them down. <br><br>To graph out accurate which enzymes are essential Czjzek and colleagues embarked aboard what she calls "treasure-hunting surrounded the marine bacterial genome." The researchers focused on Zobellia galactanivorans, a marine bacterium known to nibble on seaweed. The hound turned up five genes in Z. galactanivorans that seemed to code for enzymes that could break down the particular carbohydrates bottom among the marine algae. When the researchers transferred these genes to another bacterium forced to eat seaweed carbohydrates, they pedestal that two genes were primarily active.<br><br>Czjzek wondered where else these genes might be lurking. So she accustom a computational manner known as BLAST to scan vast banks of metagenomic data—the genomes of bacteria gathered from the environment—for sequences that matched up with the two Z. galactanivorans genes. That's when the surprise came,[http://www.louboutinforuzonejp.com/ ルブタン イブニング].<br><br>"They were forever besides one from marine bacteria," Czjzek says. "The an exception ... came from human gut samples." The bacterium within question is known as Bacteroides plebeius,[http://www.louboutinforuzonejp.com/ ルブタン メンズ], and it has been bottom only among Japanese folk Wondering if the enzymes were especial to Japanese individuals, Czjzek's crew compared the microbial genomes of 13 Japanese people with those of 18 North Americans. Five of the Japanese subjects harbored the enzyme,only among the North Americans, "we didn't find a single an says Czjzek, whose troop reports its findings tomorrow in Nature. <br><br>Where would bacteria inside the human gut get ahold of a seaweed-digesting enzyme? Czjzek speculates that they could have grabbed it from bacteria that live aboard the seaweed. She notes,for instance that along to levy records dating after to the 8th century C.E., seaweed was accustom as a form of expense amid Japanese society. "That shows the importance of this type of agreeable Czjzek says. With nori, the seaweed adapt to coat sushi or wakame, a green seaweed constantly served in miso soup,[http://www.bluelabelonsalejp.com/ バーバリーブルーレーベル], being consumed daytime subsequently day the bacteria amid the gut would have a accident to incorporate genetic material from their marine-dwelling cousins. "Traditionally, [the Japanese] eat [seaweed] crude never sterile says Czjzek. "This makes the contact feasible <br><br>The aptitude to munch on a few supplement carbohydrates might have given these gut bacteria a thigh up over their thousands of competitors, says Czjzek. It likewise may assistance their human hosts. Because gut bacteria can squeeze stamina from carbohydrates that human enzymes can't crash down, these adapted microbes might aid Japanese who dine aboard seaweed get more nutrition from their repast than do North Americans, she says.<br><br>Scientists have thought that gut bacteria might pick up genes from other microbes, a process known as lateral gene transfer,[http://www.louboutinforuzonejp.com/ ルブタン 靴 メンズ],but there hasn't been an instance this explicit onward says Ruth Ley, a microbiologist along Cornell University. "I think it's the first demonstration of how people's culture has impacted the [bacteria among the] gut." | ||
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| + | == Video Aimed by LGBTQ Youth Takes NASA to New Heights Scienc == | ||
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| + | namely globe renowned as breaking barriers,plus likewise as some pretty amazing videos possibly most famously,[http://www.louboutinforuzonejp.com/ クリスチャンルブタン 店舗], last summer's astounding about the Curiosity Mars aerodrome But for sheer cheek plus emotion, probably nothing amid its oeuvre matches the on 30 March. "It Gets Better" might be called "9:53 minutes of encouragement." In it,a great many NASA employees, plus performer George Takei, AKA of the starship Enterprise group assure lofty school and college-aged lesbian,[http://www.louboutinforuzonejp.com/ ルブタン ブーツ], gay,[http://www.bluelabelonsalejp.com/ バーバリーブルーレーベル], bisexual,[http://www.dieselonsaletokyo.com/ ディーゼル 時計 ユニセックス], transgender,[http://www.dieselonsaletokyo.com/ ディーゼル 時計], queer plus questioning (LGBTQ) individuals who are victims of bullying and/or have been affected by bullying" that their lives tin and aspiration amend and that along NASA sexual orientation makes not distinction to people's competence to chase their careers.<br><br>Created according the at NASA's (JSC), the notable"Houston" of forever those memorable area flights, "It Gets Better" carries the agency's imprimatur. It features JSC adviser plus sometime astronaut assuring viewers that NASA values "the skills plus talents of each individual, regardless of differences including sexual orientation and gender personality plus that despite the "difficulties"plus"hardships" members of the target multitude may be undergoing quickly"I promise life want acquire better."<br><br>Roger, Houston. Copy that. The film namely beneath. | ||
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| + | == Electronics Go Viral - ScienceNOW == | ||
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| + | Some viruses occasion ailment pandemics, and death. But scientists have pedestal a current access to put along least one type of virus to agreeable use. A troop of researchers has harnessed bacteria-infecting viruses to generate power onward converting mechanical energy into electricity. The virus power package isn't additionally mighty enough to flee your cell phone or iPod. But as the microbes are harmless to humans, they may one daytime certify serviceable for powering medicinal sensors inside our bodies.<br><br>Devices that convert mechanical energy into electricity,alternatively vice versa,[http://www.dieselonsaletokyo.com/ ディーゼル バッグ], aren't anything current They take advantage of the "," which was first discovered among 1880 and is a attribute of certain crystals, proteins, and even DNA. Piezoelectric materials consist of molecules that have more affirmative electrical charges on one annihilate of the molecule than aboard the other These molecules bolt splice within a repeating array with their affirmative ends forever facing an access and their negative ends facing the inverse access Compressing the material increases this polarization and generates an cordless voltage that can be accustom to do go Alternatively,[http://www.louboutinforuzonejp.com/ クリスチャンルブタン2013新作],according adding electricity, you can correction the mainstream of a piezoelectric material. Today, piezoelectrics are acclimate surrounded everything from cordless lighters to scanning tunneling microscopes. <br><br> Most piezoelectric generators among use today are made with crystals of the ceramic adviser zirconate titanate (PZT). PZT namely detrimental so among recent yearsresearchers have been developing , such as zinc oxide. But some of these alternatives are priceless and challenging to manufacture. So Seung-Wuk Lee, a bioengineer by the University of California, Berkeley, and his colleagues there and along neighboring Lawrence Berkeley National Laboratory opted to discern if viruses could assistance them out.<br><br> The fancy isn't as wacky as it seems. While a graduate student along the University of Texas, Austin, Lee had developed bacteria-infecting viruses called phages that bind to characteristic types of inorganic semiconductor nanoparticles. He likewise knew that DNA and certain proteins—the building blocks of the phages—are piezoelectric. So he and his colleagues went looking for piezoelectric phages. They bottom an called M13 bacteriophage, whose narrow tube-shaped outer coat consists of virtually 2700 copies of a rod-shaped protein with affirmative charges aboard one kill and negative charges on the additional The proteins within the phage amass with their affirmative ends leaning into the hollow elite which allows them to grasp onto the negatively charged DNA that the phages inject into bacteria during an infection.<br><br> To test whether the phages could generate power, Lee and his colleagues 1st genetically engineered the virus's proteins to asylum additional copies of a negatively charged amino mordant called glutamate. They added glutamates to the negatively charged kill of the protein to add its negative charge and accordingly its piezoelectric properties. To tell a generator, the researchers laid down a film of millions of these phages atop an electrode. The phages naturally amass themselves lying flat,[http://www.bluelabelonsalejp.com/ バーバリー財布 レディース], side onward side,always pointing among the same direction.<br><br> The Berkeley troop layered several of these viral films atop one anew to enhance the piezoelectric accomplish and next capped the stack with a second electrode. As the researchers report online this week surrounded Nature Nanotechnology, that could light up the digit an aboard a small fluid crystal exhibit.<br><br> The new generator produces far fewer power than conventional piezoelectric devices. Nevertheless,[http://www.louboutinforuzonejp.com/ ルブタン パリ], Zhong Lin Wang, a materials scientist by the Georgia Institute of Technology surrounded Atlanta says, "It shows the feasibility of expanding the nanogenerator into biostructures, which can be important as medicinal and biological applications,[http://www.bluelabelonsalejp.com/ バーバリー 時計]," such as implantable sensors as diagnosing blood sugar levels for diabetics. In an exertion to acquaint that possible Lee and his colleagues are quickly working to direct the evolution of the viruses to tell them better power producers. | ||
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| + | == You Can't Have Success if You Don't Get in the Game Science == | ||
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| + | In today's society, computers and assorted forms of technology are ubiquitous, especially in scientific research. Through one NSF-IGERT (Integrative Graduate Education Research and Training) acknowledge from the , (WSU) in Detroit, Michigan,[http://www.louboutinforuzonejp.com/ ルブタン ギャラクシー], has funding to support graduate research fellowships in the applications of high-performance computing. The fellowships have one anniversary paid stipend of $25,000 and comprise tuition and health-care scope Eligible research fields include:<br><br><br><br><br><br>With funding from the NSF-IGERT grant the interdisciplinary high-performance computing programme by WSU has expanded to approximate out to students by all levels. For the summer 2003 agenda research fellowships ambition be easily as undergraduate students. Additionally,[http://www.louboutinforuzonejp.com/ クリスチャンルブタン], interested lofty educate students may also participate. In fact during the summer 2002 programme a Detroit high teach student conducted research in high-performance computing and simulation dealing with the fragmentation of protonated diglycine (a small peptide ion) meantime it collides with a diamond surface.<br><br><br><br>The student was asked to annotate on what she liked maximum virtually her summer research experience. "It's the academic growth [I] gained,[http://www.louboutinforuzonejp.com/ ルブタン ピープトウシューズ], and the exposure and enrichment [that] afforded me an insight into a feasible calling in this district said this student, "I am yet before in the game related to a possible academy curriculum of please Although the placement of lofty educate students is finite to the Detroit metropolitan area opportunities in high-performance computing do exist as undergraduate (summers) and graduate (year-round) students at WSU.<br><br><br><br>Clearly, high-performance computing namely a growing area that offers innumerable applications and research-development experiences. A large range of skills namely needed for success in this district of study That includes problem-solving and decision-making skills; communication skills (written and verbal); calculator and evaluating skills; and the aptitude to work in teams. These skills can be applied never only to calculator science and mathematics but likewise to areas such as biochemistry, biology, materials science, and engineering.<br><br><br><br>However, given the breadth of research areas covered surrounded the cardinal focus areas of the programme the opportunities as students to acquaint meaningful contributions (and ascertain jobs upon graduation) are legion. Graduating students might ascertain employment in,[http://www.louboutinforuzonejp.com/ ルブタン 銀座],case in point academia, national research laboratories, pharmaceuticals, industrial anesthetic diagram fabrication and automotive, medical/health professions such as bioinformatics.<br><br><br><br> Why Wayne State? <br><br> WSU namely 1 urban commuter institution with a perfect student enrollment of more than 31,000 students, of which 23.84% are African American,five.47% are Asian Pacific Islander, 1.94% are Hispanic, and 0.38% are American Indian/Alaskan Native. This makes WSU the third largest school in Michigan. . Each annual WSU ranks in the height 10 nationally in terms of the number of bachelor's degrees awarded to students of African descent.<br><br>The university as well as its science and engineering departments,is committed to increasing diversity at the undergraduate and graduate class There are a diversity of minority programs by WSU, such as the Summer Undergraduate Research Experience in the biomedical sciences as minority students, two National Institutes of Health programs,that Minority Access to Research Careers and Minority Biomedical Research Support. These programs advocate a variety of science majors, such as chemistry, biology,pharmacy and chemical toxicology.<br><br><br><br>All students are salute to petition for the NSF-IGERT undergraduate and graduate fellowships,merely we particularly encourage minority students to petition as these funding opportunities. There are hundreds of students across the nation with the capacity set to be successful in high-performance computing,[http://www.bluelabelonsalejp.com/ バーバリー財布 レディース],but the only way to realize success alternatively approach this latent namely to acquire in the game."<br><br><br><br> Dr. Keith B. Williams namely the consultant of the office of Minority Student Initiatives at Wayne State. Dr. William L. Hase namely the interim chair for the Department of Computer Science and principal investigator of the NSF-IGERT grant More information nearly the and the can be found on the Web. For general information,bring e-mail to (Dr. Williams) or (Dr. Hase). | ||
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| + | == ScienceAAAS Site Help About Us About Science plus AAAS == | ||
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| + | <img class="LeftImage" src="http://www.sciencemag.org/help/images/about_aaas.jpg" width="149" height="47" alt="AAAS, The Science Society" /><br><img class="RightImage" src="http://www.sciencemag.org/help/images/about_logostack.jpg" width="147" height="184" alt="Science Online Logos" /><br><img class="LeftImage" src="http://www.sciencemag.org/help/images/about_science.jpg" width="100" height="53" alt="Science" /><br>About Science & AAAS ABOUT SCIENCE ,[http://www.louboutinforuzonejp.com/ ルブタン 靴]<br>Founded surrounded 1880 aboard $10,000 of seed money from the American inventor Thomas Edison, Science has grown to chance the world's leadership channel as scientific news,commentary and cutting-edge research, with the largest paid circulation of any peer-reviewed general-science everyday Through its print and online incarnations, Science reaches an estimated worldwide readership of more than one million. In content,too the daily is actually international surrounded scope; some 35 to 40 percent of the corresponding authors aboard its papers are based outdoor the United States. Its articles consistently rank among world's most cited research. <br> <br>Science's presidency position stems from many factors: <br> <br>Today,[http://www.bluelabelonsalejp.com/ バーバリー傘], a centenary and a 15 min behind its founding, Science continues to publish the quite best within scientific research,[http://www.bluelabelonsalejp.com/ バーバリー バッグ], news,[http://www.dieselonsaletokyo.com/ ディーゼル 財布], and opinion. Whether you're concerned with AIDS, SARS,[http://www.bluelabelonsalejp.com/ バーバリー 時計], genomic medicine, Mars,alternatively global warming,alternatively equitable paucity to keep alongside of where the technological world namely and where it's going, you want find something worthwhile within Science. <br> THE SCIENCE WEB SITES <br>In keeping with its tradition of breaking present layer among scientific publishing, Science was a pioneer among moving annual content online, beginning the shift amid 1995 with the start of Science Online, of our online science jobs site, Science Careers, and of our profession mutation site for young scientists, Next Wave (which has immediately been merged with the Careers site). Since afterwards our Web family has grown among scope: <br> <br> In addition to developing new online products and services, Science has shown leadership in other areas central to our core constituency -- the working scientific researcher. <br> ABOUT AAAS <br>AAAS -- the American Association as the Advancement of Science -- namely Science's publisher, and a mastery voice for the interests of scientists worldwide. Founded among 1848, the association namely the world's largest general-science society; amongst its primary membership and its affiliations with some 262 technological societies and academies, it serves 10 million individuals. The organization's mission, simply stated,namely to "advance science and serve society". This it does never only amongst publication of Science,but amongst annual meetings, public outreach, activities to mushroom international technological cooperation and sustainable evolution policy advocacy, educational programs,press relations, and efforts to addition the public understanding of -- and appreciation of -- the technological company <br> <br>We hope you'll take a moment to visit AAAS's Web site, , to discern the many things AAAS is doing to beyond the interests of the technological community -- and that you'll consider yourself. | ||
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| + | == How Do Organs Know When They Have Reached the Right Size == | ||
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| + | Summary ,[http://www.dieselonsaletokyo.com/ ディーゼル トートバッグ]<br>Developmental biologists have base dozens of proteins and genes that play a character surrounded the growth of plants plus animals. But how growing organs plus organisms can sense their size and understand while to block is still a puzzle Developmental biologists continue to explore that puzzle,[http://www.louboutinforuzonejp.com/ ルブタン 靴 メンズ],plus the current objects of their attention are imaginal discs,[http://www.dieselonsaletokyo.com/ Diesel 時計], flattened sacs of cells that grow during fruit flies' larval stages. Scientists tin too change the rate by which imaginal disc cells detach prompting both likewise many alternatively not enough cells to form,[http://www.bluelabelonsalejp.com/ バーバリー アウトレット],merely the compartment size adjusts so that organ size remains the same. How does a developing organ somehow senses the mechanical forces aboard its growing plus dividing cells? | ||
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| + | == Opportunities and Challenges amid Next Generation Standards == | ||
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| + | Summary ,[http://www.dieselonsaletokyo.com/ ディーゼル 時計 レディース]<br>Imagine namely politicians plus the folk they portray understood how human action impacts Earth,[http://www.dieselonsaletokyo.com/ ディーゼル 財布], including atmosphere And imagine that they had learned how to reckon claims,[http://www.louboutinforuzonejp.com/ ルブタン フラッツ],discuss from guarantee and comprehend models. These understandings plus practices are prominent in the U.S. National Research Council (NRC) architecture to consultant the subsequently iteration of standards as U.S.basic plus secondary educate students (1). We argue how aspects such as authorship,[http://www.louboutinforuzonejp.com/ ルブタン サンダル], coordination amid subject areas,[http://www.bluelabelonsalejp.com/ バーバリー傘],plus broader goals of college plus profession readiness give reason to believe that this effort want be extra successful than previous attempts to use standards to amend science pedagogy two. | ||
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| + | == Aerosols Altered Asian monsoons - ScienceNOW == | ||
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| + | Summer monsoons provide much of the water for agriculture forestry,[http://www.louboutinforuzonejp.com/ クリスチャンルブタン 店舗], wetlands, and fisheries aboard the Indian subcontinent. But the pattern of rain within the region has shifted dramatically during the last half of the 20th century: The pregnant Ganges Valley within north-central India became drier,while northwestern India, southern India, and Pakistan got wetter. In a current study researchers pin the reproach aboard sulfate, soot,[http://www.dieselonsaletokyo.com/ ディーゼル 時計], and other aerosol particles from human activities. <br><br>The rains that have long drenched South Asia from June apt September originate as humidity from the Indian Ocean and the Arabian Sea, carried forward monsoon winds blowing from southwest to northeast. When the moist air reaches the Indian subcontinent, it rises and begins apt cool, and the water it carries falls out as torrential rains. <br><br>The monsoon winds themselves are driven onward what is essentially a colossal heat engine, says climate scientist Yi Ming of the Geophysical Fluid Dynamics Laboratory/NOAA within Princeton, New Jersey. In the summer, the Northern Hemisphere receives significantly more vigor from the sun than the Southern Hemisphere. The atmosphere over landmasses such as the Indian subcontinent likewise heats up more rapidly than it does over water. Because air flows from regions of higher suppression (denser, colder atmosphere apt lower pressure (warmer air these heat imbalances construct winds that blow strongly onto the Indian subcontinent. And those winds carry a lot of humidity.<br><br>So what might another that precipitation pattern? In addition to natural variations among solar radiation, greenhouse gases such as carbon dioxide and aerosols such as soot can have 1 impact aboard the summer monsoon. Ming and colleagues compared the history of rainfall from 1951 to 1999 with multiple climate simulations that showed how precipitation during the South Asian summer monsoon would adaptation based aboard aerosols alone, greenhouse gases alone, natural forces alone, and entire of these factors working in the meantime.<br><br>Aerosols corner out apt be the guilty the researchers report online today amid Science. Different aerosols—such as sulfates from the burning of fossil fuels and soot from the burning of local cook fires alternatively large industrial fires—can have varying impacts aboard climate, so the researchers looked only at the net effect of always of the aerosols in the region's air.<br><br>Ming says that the . Without that strong heat contrast,[http://www.louboutinforuzonejp.com/ ルブタン イブニング], the winds slow, and the rain begins apt fall over the ocean and southern India rather than pushing forward into the north-central region. Those changes apt the water cycle could also appending the incidence of water-borne diseases such as cholera and hepatitis,[http://www.bluelabelonsalejp.com/ バーバリーベルト メンズ], as well as mosquito-borne malaria. <br><br>"I think that they have helped solve a dilemma says Peter Webster, a climate scientist by the Georgia Institute of Technology amid Atlanta. But,[http://www.bluelabelonsalejp.com/ バーバリー バッグ], he cautions, there is still a lot of uncertainty within aerosol distributions, particularly ahead nearly 1970,when satellites began collecting better data. <br><br>Although the team's prototype predictions show "convincingly" that aerosols are the major contributor apt rainfall changes among the South Asian monsoon, notes Andrew Turner, a climate scientist by the University of Reading within the United Kingdom, it fails to explain recent changes in the East Asian monsoon. The simulations foretell that aerosols would enhance drying over southern China,only the inverse has actually happened. <br><br>There are still much uncertainties amid the study Ming agrees. The South Asian monsoon learn is part of a longer-term effort apt include precipitation as well as temperature among models of climate and to gradually zoom among from the universal average models to more continental,or regional-scale, models. "For immediately Ming says, "we're focusing on the tropics, the Sahel, the Amazon, the southwestern United States. [India] namely our test case apt discern how we're act" | ||
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Latest revision as of 14:43, 9 July 2013
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Genentech Science Careers
At Genentech, we're about diverse employees coming together to create breakthrough medicines that change the lives of people and help manage disease. We're about encouraging success and providing rewards to those who work here. We're about helping current students and new graduates forge a unique and meaningful career path and ensuring that experienced professionals have the opportunities and resources to excel no matter where they are in their careers. And we're about helping employees create a fulfilling balance between their personal lives and career aspirations.
Our employees cite the chance to make a difference in the lives of patients as the number one reason they enjoy working at Genentech. In hiring new employees, we look for people who are inspired by this mission and who would fit in well with the collaborative, rigorous and entrepreneurial spirit of the company culture.
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Mapping the Psychedelic Brain - ScienceNOW
Nutt and Griffiths are interested in the therapeutic potential of hallucinogenic drugs. Griffiths is involved in a pilot study testing whether psilocybin and psychotherapy can ease end-of-life anxiety in cancer patients. Nutt's group is looking into using the drug to treat depression,ルブタン 靴 メンズ, and thisweek in The British Journal of Psychiatry, he and colleagues report that when people recallevents from their past. The drug also improved people's ability to access personal memories and related emotions, which the researchers say could be helpful during psychotherapy.
"It's a very interesting study that raises lots of new questions," says Roland Griffiths, a psychopharmacologist at Johns Hopkins University in Baltimore, Maryland. He says the possibility that the drugs work by interfering with the default mode network is an appealing hypothesis that deserves further investigation.
The researchers performed two different types of MRI scans, one that measured blood flow throughout the brain and one that determined blood oxygenation, which neuroscientists generally assume is an indicator of neural activity. Contrary to the previous study, the scans showed that , including the posterior cingulate cortex and medial prefrontal cortex. The researchers quizzed the volunteers after the psilocybin had worn off and found that people in which these regions were most inhibited tended to report the most intense hallucinatory experiences. Nutt says he's not sure why the findings differ from those of the PET study,ルブタン コピー, but he speculates that it could be due to the different time courses of the injectable drug his team used and the oral tablets used in the other research.
The posterior cingulate and medial prefrontal cortices are hubs in the so-called default mode network, a web of interconnected brain regions that becomes active when people allow their minds to wander. Some researchers have proposed that the default mode network is crucial for introspective thought and even for generating the sense of consciousness, and Nutt thinks the finding that psilocybin inhibits this network could help explain the surreal experiences the drug causes. "What I think is going on is that this network in the brain that pulls together a sense of self becomes less active,ルブタン サンダル," he says, "and you get this fragmented or dissipated sense of being."
Drugs like psilocybin, the active ingredient in hallucinogenic mushrooms, play all sorts of tricks on the mind. They distort the perception of time, space, and self, and even untether the senses. Some researchers thought these strange effects might result from the drugs overexciting the brain. But the first study to use functional magnetic resonance imaging (fMRI) to examine brain activity in people who've taken psilocybin finds that the drug reduces neural firing in key communication hubs, essentially disconnecting some brain regions from each other.
In the new work, published this week in the Proceedings of the National Academy of Sciences, researchers led by psychopharmacologists Robin Carhart-Harris and David Nutt of Imperial College London used a different method, fMRI, to scan the brains of 30 people who were under the influence of psilocybin. The tight confines and loud noises of the scanner could be scary for someone on psilocybin,バーバリーブラックレーベル, Nutt says. To minimize the chances of anyone having a bad trip, the researchers recruited people who'd taken hallucinogens previously, and they delivered the drug intravenously so that it would have a faster—and shorter—effect than, say, eating magic mushrooms.
In Central America and elsewhere, hallucinogenic drugs have been used for centuries in healing and religious ceremonies. Recent years have seen renewed interest in exploiting them and potentially to treat depression, anxiety, and other mental illnesses. Yet neuroscientists know little about how these compounds act on the brain to cause such intensely altered experiences. Hallucinogenic drugs are tightly regulated, and few previous studies have tried to gauge their effects on the human brain. One study,バーバリーブルーレーベル, using positron emission tomography (PET), found that psilocybin increases brain metabolism, especially in the frontal cortex.
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Fairy Circle Mystery Solved - ScienceNOW
All in all, Juergens found 10 to 20 times more biodiversity at fairy circles than in the surrounding desert. "These tiny termites have managed to turn rainfall as little as 50 millimeters per year into a continuous, permanently livable ecosystem," he says. "Identification of this termite as opposed to other candidates behind fairy circles is part of the story, but the more interesting story is that this insect evolved to be a masterpiece of ecosystem engineering."
"My view is that fairy circles have little, if anything, to do with termites," agrees Michael Cramer, a plant ecophysiologist at the University of Cape Town. He now has a manuscript in review proposing that fairy circles are the product of natural vegetation patterns resulting from competition for scarce resources. "The only way for this question to be properly answered,Diesel アウトレット," he says, "is with more thorough investigations and focused experiments."
Like others who came before him, Norbert Juergens was caught in the spell of fairy circles. These bare patches of ground, often outlined with a fringe of tall grass, pockmark a 2000-kilometer-long strip of desert stretching from Angola to South Africa. Though the formations have confounded scientists for years,バーバリーブルーレーベル, Juergens—an ecologist at the University of Hamburg in Germany—thinks that he may be the first to crack the puzzle.
Tschinkel agrees. "Juergens has made the common scientific error of confusing correlation—even very strong correlation—with causation," he says. "If Juergens claims termites are killing the grass, he's got to show that they're actually attacking living plants. That's not easy to do, and he didn't do it."
This water sink, he thinks, also promotes the characteristic "luxurious belt" of high grass that often grows around the fairy circles' edges, because it does not have to compete with thirsty neighboring plants. During the rainy season, the termites venture into the surrounding grasslands to feed, and in extreme drought seasons they turn to their belt of high grass for sustenance. These nibblings slowly expand the circles' diameters over the years, Juergens says.
The strange saga of the fairy circles got even stranger last year. That's when Walter Tschinkel, a biologist at Florida State University in Tallahassee, analyzed 4 years of satellite images of the formations in Namibia's NamibRand Nature Reserve. Tschinkel had been intrigued by the circles since firstencountering them on a vacation to Africa in 2005. The images revealed that some of the formations arose and others vanished over the 4-year period—the Extrapolating from the data, Tschinkel estimated an average "lifespan" of 41 years. But he couldn't figure out what made them. Some suspected that termites were killing the grass from below, but Tschinkel found no evidence that the insects caused fairy circles. Nor did he find anything wrong with the soil itself.
Juergens stands by his findings. He also says the termites should be marveled at for far more than their ability to make fairy circles. The formations, he notes, act as small oases not just for their termite creators but also for a diverse assembly of desert fauna. He observed numerous species ranging from insects to birds to mammals—including jackals, springbok, moles,バーバリー傘, foxes, aardvarks, and others—spending time at the fairy circles, foraging either on termites,Diesel 時計, the high perimeter grass, or else preying on other species that aggregated there.
Vivienne Uys, a termite taxonomist at the Agricultural Research Council in Pretoria, says that Juergens's findings on the biology of sand termites are consistent with what scientists know about the species. But she says she needs more evidence to be convinced that the insects create fairy circles. "The link between foraging activity of the termite resulting in the formation of a perfect circle of bare soil is unclear."
Juergens believes that in their tunneling, sand termites damage plant roots and feed on them, slowly forming fairy circles in the process. He found the termites in all of 24 newly forming fairy circles that he examined in Namibia. He's still at a loss as to why the fairy circles eventually "die," but he hypothesizes that competition or predation by ants plays a role.
Juergens's search for answers began a year after Tschinkel's. He started traveling throughout Africa in 2006—including to remote areas in Angola, still reeling from its recent civil war—in search of fairy circles. He became intrigued with the formations after noticing, like Tschinkel,ルブタン ピープトウシューズ, that the mysterious patches seemed to come and go from the landscape. He recorded any signs of animal life that he came across in and around the circles, such as tracks, dung, or nests. He also dug trenches from the center of the circles to the outside in order to find any subterranean organisms that may be lurking below.
Juergens thinks that the sand termites—which must maintain body moisture to survive—build and tend to these circles on purpose. Whereas plants quickly suck up the desert's stingy 100 millimeters of annual rain, the fairy circles' bare centers allow the rainwater to seep into the porous, sandy earth, where it remains indefinitely. To quantify this, he stuck humidity probes into a range of depths in the fairy circles' bare centers, where the devices recorded soil moisture over a period of four years. "These bare patches are water traps," Juergens says. "Over the years, I didn't measure 1 hour with less than 5% water at 60 centimeters, which is certainly wet enough to support termite life."
Tschinkel and others may have missed these "extremely clandestine" insects, which seem to "swim" through the sand, Juergens says, leaving only very fine tunnels. Unlike some other termite species, they do not build complex underground galleries, have no aboveground nest, and emerge only occasionally at night. Other researchers could easily overlook the insects' fine tunnels by digging too deeply or forcefully, says Juergens, who focused his efforts a few centimeters to tens of centimeters beneath the surface. Juergens , he reports online today in Science.
During these investigations, which spanned 40 field trips and about 1200 sampled fairy circles, a pattern emerged. Using a process of elimination, Juergens saw that only one species was nearly always present at the fairy circles he visited: the sand termite.
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Integrative Analysis of Complex Cancer Genomics and Clinical
Jianjiong Gao1,ルブタン 店舗, Bülent Arman Aksoy1 , Ugur Dogrusoz2 , Gideon Dresdner1 , Benjamin Gross1 , S. Onur Sumer1 , Yichao Sun1 , Anders Jacobsen1 , Rileen Sinha1 , Erik Larsson3 , Ethan Cerami1,4 , Chris Sander1, and Nikolaus Schultz1
Correspondence should be addressed to cbioportal{at}cbio.mskcc,バーバリーネクタイ.org; user support is available at cbioportal{at}googlegroups.com
Abstract: The cBioPortal for Cancer Genomics () provides a Web resource for exploring, visualizing, and analyzing multidimensional cancer genomics data. The portal reduces molecular profiling data from cancer tissues and cell lines into readily understandable genetic,バーバリーロンドン, epigenetic, gene expression, and proteomic events. The query interface combined with customized data storage enables researchers to interactively explore genetic alterations across samples,バーバリー 財布, genes, and pathways and, when available in the underlying data, to link these to clinical outcomes. The portal provides graphical summaries of gene-level data from multiple platforms, network visualization and analysis, survival analysis, patient-centric queries, and software programmatic access. The intuitive Web interface of the portal makes complex cancer genomics profiles accessible to researchers and clinicians without requiring bioinformatics expertise, thus facilitating biological discoveries. Here, we provide a practical guide to the analysis and visualization features of the cBioPortal for Cancer Genomics.
Integrative Analysis of Complex Cancer Genomics and Clinical Profiles Using the cBioPortal
1 Computational Biology Center, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.
2 Computer Engineering Department, Bilkent University, 06800 Ankara, Turkey.
3 Institute of Biomedicine, Department of Medical Biochemistry and Cell Biology, University of Gothenburg,バーバリー傘, S-405 30 Gothenburg, Sweden.
4 Blueprint Medicines, Cambridge, MA 02142, USA.
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ScienceShot Stone Age Snails - ScienceNOW
See more ,クリスチャンルブタン2013新作.
A variety of snails common in western Ireland may have been transported there by humans during the Stone Age, a new study suggests. Cepaea nemoralis, the banded wood snail,ディーゼル ショルダーバッグ, is found in many locales in Western Europe and is typically 1.5 centimeters across, about the width of an adult's thumbnail. But a subpopulation of the species found in western Ireland ranges up to twice that size and has a distinctive white lip on its shell to boot—traits also seen in members of the species from southern France, along the northern slopes of the Pyrenees. In previous studies, carbon-dating of shells revealed that the normally rare, white-lipped variant arrived in Ireland more than 8000 years ago. Now, geneticists have linked the Irish snails to the Pyrenees. As they report online today in PLOS ONE,バーバリーブラックレーベル, they found that one particular lineage of the species—with two exceptions,ルブタン ピープトウシューズ, both associated with snails found along the coasts of the Irish Sea—were found only in Ireland and in the central and eastern Pyrenees. How the snailsreached Ireland but apparently skipped intermediate regions has long been a mystery. It's most likely, the researchers suggest, that traveling from the Mediterranean region through the Pyrenees on their way to Ireland—perhaps unintentionally, in fodder for the trader's animals or,ルブタン ブライダルシューズ, more intriguingly, as a part of the trader's food supplies. French cuisine, after all, has long been famed for its escargot.
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Gregory Andrews
Next Wave: So what happened around 2000 that caused the industrial labs to close or cut back?
Next Wave: With the closure of these corporate labs, what has happened to the academic job market? Is it still really strong, or is there more competition for fewer positions than there used to be?
G.A. The dot-com bust. Because a lot of the economy turned down and turned down sharply. There was a big shakeout in all the high-tech industries.
Next Wave: How are career opportunities in computer science today, compared with how they've been in the recent past? Are they better or worse?
Next Wave: Many administrators in the life and physical sciences see the postdoc as an extra training phase beyond the Ph.D. But if you talk with the postdocs themselves, often they're just biding their time until they can get a better job. Is there a training role for the postdoc in computer science?
G.A. Right.
The number of people in graduate school now is up; however, at the other end of the pipeline, undergraduate enrollments are down the last few years, and that's a direct reflection of the economy.
G.A. Yes, for Ph.D. students that's the case. But one problem that we've had is that there are lucrative outside opportunities for graduate students, especially when the economy is booming. Anytime there's been a boom in the 30 years I've been a faculty member, there has been, essentially, raiding of the graduate students, real financial incentives for them to leave with a master's degree. In the dot-com boom, it got down to the undergraduates.
Next Wave: It seems that women aren't that interested in hardware.
Gregory Andrews: I was learning from the people at the beginning of the field.
As for gender diversity, there's a real difference in gender balance by subspecialty. Software fields are not good; but when you get closer to hardware it gets even worse, more male-oriented. The closer you get to people--interfaces, robots, artificial intelligence--the better the gender balance. In some subfields, it's close to equitable. Mathematics is pretty close to even, but computer science is heavily skewed. The subfield that is most mathematics-like--theory and algorithms--has a much better gender balance.
G.A. Yes, but the total number [390 by 2006] is still very small. In some subfields--the theoretical computer science subfield was the first one--there was an oversupply, and so it became more like you would find in the biological and physical sciences where a postdoc was the only alternative for someone with a Ph.D. It wasn't the starvation wages of the life sciences--it was maybe two-thirds of what they could get if they had a tenure-track position--but they had to take what they could get.
Next Wave: A technical question: Our feature is focused on software; in computer science research, is there a clear distinction between software and hardware?
G.A. It's absolutely woeful.
Next Wave: Thirty years as a faculty member; that takes you almost back to the beginning of this field, doesn't it?
Next Wave: So, how many new openings are expected in the coming years?
Next Wave: Do you see this--more postdocs in computer science--as a thing for the future?
Next Wave: It's modest, but it's better than most fields of science, especially for researchers.
G.A. I don't know.
Andrews has received two distinguished teaching awards from the University of Arizona, including a career award. He has served on editorial boards and on the board of directors of the Computing Research Association, computer science's research-focused professional organization. He is the author or co-author of three books and numerous journal articles. He is an avid golfer, proud of the fact that his handicap is smaller than his shoe size.
Next Wave: Where's the new technology coming from these days?
Next Wave: Six [newly hired] African-American tenure-track faculty members, three Hispanics, and one Native American/Alaskan native [nationwide].
Next Wave: Why is that?
Next Wave: What about the graduate students? I assume that computer science is a field like any other field of science in that, once you get into graduate school, you're going to make your way through it and you're never going to have to pay a cent, and you're probably going to get a decent stipend while you're in it.
G.A. All over the place. More of the basic research is coming from the academic labs, and NSF has come down to being almost the sole supporter of things. DARPA [the Defense Advanced Research Projects Agency] used to play a major role, and they're completely application-driven now, or almost completely.
G.A. There still is a pure hardware side. It's a fairly small component, interested in how to build better chips and fabricate new things. But hardware exists either to facilitate the creation of software or to take over software functions. It's so intimately connected with the systems-level software that that distinction is blurred. And the most interesting architecture work is really systems-level architecture. It's not the chips; it's the global functionality of the components.
G.A. We've talked about it, and I've now seen it clearly from the funding side. We just don't have the money for it. We are very, very hard strapped just to support the basic research going on with faculty and graduate students. Postdocs are very expensive.
And now we've got declining undergraduate enrollments. And that is a worrisome trend for us as a field, that we have fairly precipitous declines in entering enrollment.
G,ルブタン コピー.A. Yeah, but [it's not a dramatic reduction]. We were flat for the first 25 or 30 years of our existence, at 200, and then it started to increase in the 1980s as we became more of an experimental science and started to grow. The last few years have been down a bit, it isn't bad.
Next Wave: Look at that postdoc category--up 25%.
Gregory Andrews [pictured left] was not one of the handful of pioneers who, trained in other disciplines, gave birth to computer science. Yet, he was on hand soon after to receive the squalling infant and, along with many others of his generation, to coax it toward maturity. Andrews is now a "rotator" at the National Science Foundation (NSF), serving as the director of the Division of Computer and Network Systems. I spoke to him about the current state and the future promise of research careers in computer science.
Lucent/Bell Labs has shut down. AT&T is minimal compared with what it was. IBM still has research capacity--Almaden has done pretty well, Yorktown Heights is still around--but it's not what they used to have. But we've seen a continuing trend; on the communication and networking side of the business, the rapid growth of the 1990s ended, and ended fairly abruptly, and they didn't have the profits to put into the labs. Microsoft is the only growth component of the computer science research community.
Next Wave: Is a Ph.D. in computer science just for academic careers, or are there industrial positions, too?
G.A. Every single time, projected faculty growth is way more optimistic than the actual. People expect to be getting new positions, and they don't materialize. In , you can see the expected 2-year growth.
Andrews was an undergraduate at Stanford when its computer science department was formed. His first computer science course was taught by Stanford's first computer science Ph.D. Andrews received his bachelor's in mathematics from Stanford in 1969--Stanford didn't offer an undergraduate CS major until the early 1970s--and earned his Ph.D. from the University of Washington in 1974. He immediately joined the faculty of Cornell University. In 1979, he moved to the University of Arizona, where he's been on the faculty ever since, serving as department chair from 1986 through 1993.
G.A. It's a shrinking pipeline, and it's got problems. There are lots of articles, lots of studies that have been done on causes. We've got some NSF-supported efforts that are trying to solve the problems. But it's a tough one, because there is an image about the field. And it is an image, frankly, that is promoted by industry and advertisers. I can remember one ad--it might have been Microsoft['s]--where all these people were trying to understand something and then the geek ... they had him stereotyped as male, white, and funny-looking. And that's just a stereotype that we've got to overcome. It's humorous--I can see that--but we're shooting ourselves in the foot.
G.A. They don't have the profits or the excess to be able to finance that anymore.
G.A. That's the dramatic trend. Look at . It shows the change in percentages going to academia vs. industry and then the small percentage that goes academic but doesn't choose a Ph.D.-granting department. For the entire decade of the 1990s it was approximately 50-50, research and academia, and that has historically been the case. What you see 2 years from the end, all the sudden things cross, and that's the closure of industrial research labs.
Traditionally, people going into academia did so by choice, not because there were no other jobs for a Ph.D. It was because you were interested in being in the university environment and working with students and so on.
Next Wave: So why did this spell the end of the pure corporate research labs? Don't these companies still need their research base? Why don't we have those anymore?
G.A. There is more competition for fewer positions. If you look at the production, it's gone down a little bit, so it's not bad. There were lots of openings last year, although not nearly as many as there were 2 to 3 years ago. There was a big spurt in the late 1990s because of the dot-com boom and, consequently, new allocations to departments of computer science and computer engineering, and that pressure is off.
Next Wave: Looking at , it looks as if there's been a general downward trend over the last 10 years or so in the production of Ph.D.s.
Next Wave: There's just one more topic on my list: diversity
G.A. Something quite unique about computer science: We don't have a postdoc tradition. That's because we have historically had so many positions available in Ph.D.-granting departments and available for fresh Ph.D.s. Traditionally, when you get your Ph.D. [in computer science] you've got some place to go. There was always more demand than there was supply, and industry was soaking up half. So the field was growing throughout the 1980s and 1990s, but we were only producing fewer than 1000 Ph.D.s, and half of those were going into industrial labs. And so we just didn't have an adequate supply of new faculty members, even though until a few years ago we had practically no retirements because the first generation of people, like me, is still in its 50s.
G.A. I haven't seen it. Someone who has had a postdoc before they enter an academic position has an advantage,ルブタン パリ, certainly. I have a colleague at Arizona in that boat,Diesel アウトレット, and he's ready for tenure sooner. He's got a stronger record. It's also a problem in evaluating CS faculty, compared to faculty in other science departments.
G.A,バーバリーブラックレーベル. Right,ディーゼル 店舗. And you don't have a whole armload of publications as a result.
G.A. Hardware and low-level software. There's something about that level of abstraction. You're dealing with strings of symbols. Not a lot of human interaction. Women move more toward the topics in which there's more contact and more relations with humans.
G.A. The Computing Research Association has for 30 years had an annual survey of the production and employment of Ph.D.s in computer science, called the Taulbee survey. The last few years' worth are all online and freely available. [Here's a to the most recent survey.]
Next Wave: Figure 4 shows permanent positions; what about postdocs?
Next Wave: Because you don't have a whole fleet of postdocs in your lab doing your research for you.
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Nature Biotechnology
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When the Snake Bites ... Try Ointment - ScienceNOW
To determine whether the ointment improved survival, the researchers injected the feet of anesthetized rats with venom from the eastern brown snake, a cobra relative that is one of Australia's deadliest, and measured how much time elapsed before the rodents stopped breathing. .
Although the team can't specify how many minutes or hours the treatment might buy, the findings suggest that "it gives you time and a half to get help," says van Helden. "I'd prefer that to just time." He says that hikers and people who work in rural areas might consider carrying the cream in case they get bitten when they are far from medical facilities.
Time is the foe for people who have been bitten by a poisonous snake, but a new study may give them a bit more of it. Researchers have identified an ointment that slows the spread of some kinds of snake venom through the body, potentially giving snakebite victims longer to reach a hospital or clinic.
The method is "very exciting," says Steven Seifert, medical director of the New Mexico Poison and Drug Information Center in Albuquerque. "It makes sense to try to slow the passage of the venom into the circulation." Medical toxicologist Eric Lavonas, associate director of the Rocky Mountain Poison and Drug Center in Denver,ルブタン ブライダルシューズ, Colorado,バーバリー 財布, is also impressed. "This is really promising," he says. The authors "did the right studies to evaluate this approach."
Still, Seifert and Lavonas question whether such a treatment would do much good in the United States. Australian snakes largely inject neurotoxic venom that spreads through the body and attacks the nervous system, triggering paralysis. The perpetrators of most U.S. snakebites are rattlesnakes, copperheads, and cottonmouths, which inject a different type of venom that mainly destroys the tissue near the bite. But the researchers note that the ointment could prove valuable in many other countries inhabited by dangerous snakes, such as cobras, mambas, and kraits, that produce neurotoxic venom. "If this treatment pans out, it may revolutionize first aid for snakebite in parts of the world where venom causes paralysis,ルブタン メンズ," Lavonas says.
Although poisonous snakes kill only a handful of people in the United States each year, the World Health Organization puts the global toll at about 100,ルブタン ギャラクシー,000 people. When some snakes strike, the bulky proteins in their venom don't infiltrate the bloodstream immediately but wend through the lymphatic system to the heart. In Australia, a country slithering with noxious snakes, the recommended first aid for a bite includes tightly wrapping the bitten limb to shut the lymphatic vessels—a method called pressure bandage with immobilization (PBI). The idea is to hamper the venom's spread until the victim can receive antivenom medicine, essentially antibodies that lock onto and neutralize the poison. But PBI is not practical if the bite is on the torso or face, and one study found that even people trained to perform the technique do it right only about half the time. As a result, some people don't get antivenom in time.
So physiologist Dirk van Helden of the University of Newcastle in Australia and colleagues went looking for a chemical method to detain the venom. They settled on an ointment that contains glyceryl trinitrate, the compound better known as nitroglycerin that doctors have used to treat everything from tennis elbow to angina. The ointment, prescribed for a painful condition called anal fissures, releases nitric oxide, causing the lymphatic vessels to clench. The researchers first injected volunteers in the foot with a harmless radioactive mixture that, like some snake toxins, moves through the lymphatic vessels. In control subjects that didn't receive the ointment, the mixture took 13 minutes to climb to the top of the leg. But it required 54 minutes if the researchers immediately smeared the ointment around the injection site, the team reports online today in Nature Medicine.
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ScienceShot Plants among Space! - ScienceNOW
The absence of gravity surrounded area doesn't appear to influence certain aspects of basis growth in the botanical equivalent of laboratory rats, a present study suggests. In 2010, researchers sent petri dishes filled with seeds of two particular strains of Arabidopsis to the International Space Station, where astronauts tended growth experiments aboard the plants—the 1st to monitor foundation mutation amid great detail the scientists advert Specifically,ルブタン フラッツ, the researchers measured how roots "waved" (how the root pinnacle wandered amongst a small perimeter over the lesson of a 24-hour period and "skewed" (began growing along an angle while it touched a surface) every six hours during their 1st 15 days of growth. Previous studies,バーバリーブルーレーベル,always of them earthbound, have suggested that these traits are genetically determined but that gravity also plays a essential character among waving and skewing,ルブタン ギャラクシー,barely the new findings reveal otherwise,バーバリーベルト メンズ, the researchers report online today amid BMC Plant Biology. . However, the foundation tips of space-grown plants height showed a proclivity to skew a morsel extra than their earthbound counterparts pedestal meantime they encountered an object mostly due to their larger digit of cells (edges of cells denoted onward blue tick marks), the researchers mention
See extra,Diesel 時計.
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Atomic Bombs Help Solve Brain Mystery - ScienceNOW
The increase clouds produced along surplus than 500 nuclear attack tests during the Cold War may have had a silver lining,once and for all More than 50 years later, scientists have found a access apt use radioactive carbon isotopes released into the atmosphere along nuclear testing apt pew a long-standing debate in neuroscience: Does the developed human pate generate modish neurons? After working apt hone their technique as more than a decade the researchers report that a small region of the human brain involved in memory makes fashionable neurons throughout our lives—a continuous process of self-renewal that may help learning.
For a long duration scientific dogma held that our brains did never generate popular neurons during adulthood says Pasko Rakic,バーバリー財布 レディース, a neuroscientist by Yale University who was not involved in the learn In 1998,however a team of Swedish researchers reported the 1st evidence that neurons are continually born throughout the human lifespan. The researchers injected a compound normally adapt to appoint tumor compartment division into patients who had agreed to have their brains examined behind death. When the scientists examined the postmortem head tissue, they bottom that prevailing neurons had indeed sprung forth during manhood The cells were located in a part of the hippocampus—a couple of seahorse-shaped structures located deep surrounded the pate and involved in memory and perception The compound was later found to be noxious however and the experiment was never repeated.
Since 1998, a digit of studies have demonstrated that new neurons are generated in the same small region of the hippocampus in mice and arise apt activity an important symbol in memory and learning says Kirsty Spalding, a molecular biologist at the Karolinska Institute in Stockholm and guide author of the fashionable learn Because the 1998 work was never confirmed forward independent research,whatever scientists have fiercely argued over if the neuron birth seen in mice likewise occurs in folk.
More than 10 years antecedent Spalding's coach Jonas Fris��n, a stem cell researcher along the Karolinska Institute and learn co-author,forward using an unconventional approximate The manner which has taken Spalding accessory than a decade to dilate hinges on a massive pulse of radioactive carbon-14 isotopes released forward nuclear explosions in the 1950s and '60s, which doubled the amount of carbon-14 in the atmosphere. This pulse stopped with the Limited Test Ban Treaty of 1963, which banned aboveground tests of nuclear weapons, and the unstable carbon-14 isotopes have steadily dilapidated Because cells incorporate carbon from the atmosphere into their DNA as they divide the proportion of carbon-14 to the more stable carbon isotope carbon-12 acts as a time seal as when a cell was born.
Spalding has been using this ratio to determine the antique of teeth in forensic investigations and the . But she had to amend the sensitivity of the technique so that it could detect the isotopic ratio in DNA from the roughly 6-gram sliver of neural tissue in the hippocampus thought to produce modish neurons, the dentate gyrus. At best, the isotope is new in only an out of each 15 neurons,ディーゼル 時計 レディース, she says,production it complex to ascertain in small amounts of tissue.
For the 1st five years, Spalding worked aboard discovery an efficacious way of separating the roughly 20 million neurons in the dentate gyrus from other types of hippocampal cells and afterwards extracting their DNA. Discovering that she could use a fluorescence-activated cell sorting machine to differentiate non-neuronal cells from neurons according production them flicker in vary colors was "a lofty point," she says. The then five years were largely spent on finding ways apt purify the DNA samples and extract and analyze the carbon atoms using high-powered particle accelerators. "We had many years without any results," Fris��n says. "It was recreation merely frustrating."
After finally getting the technique down pat,クリスチャンルブタン メンズ, Spalding decided that it was period to venture it aboard some real human head tissue. She and her colleagues extracted hippocampi from 55 deceased people who had given informed consent to have their brains studied. They then layer up the tissue samples, sorted the cells, and extracted the DNA. Next,ルブタン ブーツ, she sent the purified genetic material to the Lawrence Livermore National Laboratory in California, where it was reduced apt pure carbon pellets and split into change carbon isotopes according heaviness in a particle accelerator, allowing the researchers apt calculate the ratio among carbon-12 and carbon-14.
Spalding, Fris��n, and colleagues afterwards created a algebraic prototype estimating, based on those ratios, the rate of cellular turnover surrounded the hippocampal neurons. , they report online today in Cell. "Some cells are dying,バーバリー傘, some are being replaced," Spaulding says. "There is a constant flux of life and death."
"This is a spectacular neutral confirmation" of the 1998 learn suggesting that fashionable neurons are born during manhood in the dentate gyrus, writes Gerd Kempermann, a neuroscientist along the German Center for Neurodegenerative Diseases in Dresden, in an e-mail. "It will likely pew the case."
Kempermann says that his own and other's studies in mice indicate that fresh developed neurons have a characteristic function in the hippocampus—for instance in helping the head differentiate among wealth that belong apt the same category,alternatively comparing modish information to what it has anyhow theoretical from experience. The competence apt tell between the Beatles and Rolling Stones,additionally still identify either as "rock bands,namely one example of this type of task in humans, Fris��n says.
There is repeatedly possibility however: Our aptitude apt replace hippocampal neurons could be an evolutionary vestige that namely never always that important today, Rakic says. He argues that human survival may have depended never so much on our competence apt generate new neurons,merely aboard our competence apt keep age ones in order to amass memories over the plenary lifespan. Compared with fishes, frogs, reptiles, and birds, some of which tin regrow plenary brain structures, he says, "it is interesting that neuronal turnover in humans is finite to a single population of neurons in only one relatively small building and it is worthwhile to analyze why it persists."
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Inflammatory Cytokines by the Summits of Pathological Signal
Inflammatory Cytokines along the Summits of Pathological Signal Cascades within Brain Diseases,Diesel リュック
Lawrence Steinman*
Departments of Pediatrics and Neurology plus Neurological Sciences,ディーゼル 時計 レディース, Stanford University, Beckman Center as Molecular Medicine, Stanford, CA 94305–5316, USA.
Abstract: When considering the hierarchical organization of pathological signaling cascades within immunological disorders of the brain, certain cytokines might be considered pinnacles of pathophysiological importance,ルブタン 靴 メンズ, with their attendance determining the advent alternatively the course of a particular malady Interleukin-1 (IL-1),クリスチャンルブタン, IL-6,バーバリーバッグ 新作, IL-17,plus tumor decease factor are critical for the pathogenesis of abscess amid characteristic brain disorders. Targeting these cytokines or their receptors tin different the lesson of several neurological diseases,merely the effects may be advantageous alternatively detrimental.
* Corresponding author. E-mail: steinmanatstanford.edu
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A Setback for Malaria Vaccines - ScienceNOW
Once afresh the malaria parasite has demonstrated that it is a particularly formidable antagonist The latest results from a clinical trial testing the leading vaccine candidate against the sickness show that the vaccine, called RTS,S, lowers the hazard of clinical episodes of malaria along equitable 31% among babies that receive their 1st potion among six and 12 weeks of old That is significantly lower than the 56% protection the same vaccine seemed to try older babies plus toddlers in.
The results dampen the wish that the vaccine might be acclimate as chapter of babies' routine vaccinations in the 1st months of life, which would have been an of the easiest ways to administer it for the health system infrastructure for giving those vaccines is but among location.
Nevertheless, trial leaders plus the vaccine's developers put a positive spin aboard the results, presented today at the International African Vaccinology Conference among Cape Town and published online according The New England Journal of Medicine. "RTS,ディーゼル ウエストバッグ,S can aid says Salim Abdulla,director of the Ifakara Health Institute within Tanzania,one of the learn sites. He notes that , which were acclimate along 86% of trial participants. "Efficacy was lower than what we saw last yearly merely there are much feasible explanations. We ambition continue apt explore the intricate factors behind the differences," he says.
RTS,S is an engineered protein that combines a protein fraction from Plasmodium falciparum, the malaria parasite,plus a protein from the hepatitis B virus aimed by bolstering the body's immune response. The vaccine was invented and developed forward GlaxoSmithKline (GSK) Biologicals amid Rixensart, Belgium,within partnership with the PATH Malaria Vaccine Initiative,Diesel リュック,plus has been studied for more than 2 decades.
The learn the first ever phase III trial of a malaria vaccine,バーバリー キッズ,is still ongoing,plus full data plus analysis of the results won't be published until late 2014. The final results might aid explain the differences among the old groups, Abdulla says. Possible explanations include the younger babies' less-developed immune systems, interference from maternal antibodies that babies carry among their 1st months of life,plus interactions with the additional vaccines administered in the meantime.
There may likewise be differences within the vaccine's efficacy in areas with revise levels of malaria transmission. An earlier phase II learn of RTS,S within infants showed much higher efficacy than the new learn,but that was among three sites with moderate malaria transmission,ルブタン 靴 メンズ, notes Joe Cohen,バーバリー アウトレット, adviser to the GSK Malaria Team and co-inventor of RTS,S. The phase III trial, which involves 15,460 children at eleven sites among seven sub-Saharan African countries, includes sites where there namely much more malaria. Site-specific data won't be procurable until the annihilate of the trial.
Abdulla and Cohen both advert they were encouraged according the vaccine's safety. Although babies developed a mild alternatively moderate fever 31% of the period then receiving the vaccine (compared with a 21% fever rate following the control vaccine against meningococcal ailment the rate of severe side effects was slightly lower than surrounded the control group.
Christopher Plowe, a malaria vaccine skillful at the University of Maryland School of Medicine amid Baltimore who namely not involved within the trial, says that last year's results hinted that efficacy in younger babies would be lower. "This is almost what was expected based on the interim analysis," he says. The result"makes it harder apt envision adding this vaccine apt the [standard vaccination] schedule … At best we have one more modestly efficacious malaria control tool" that will support amid some places beneath some conditions.
Nicholas White, a malaria expert at Mahidol University among Bangkok, agrees. "It was forever going apt be an adjunct apt additional interventions," he says. Whether and how RTS,S might be ultimately adapt"depends on the cost-effectiveness analysis and donor enthusiasm."
"We'd favor to have seen higher efficacy than we've seen"among infants, acknowledges Andrew Witty, CEO of GSK. "It's a mini frustrating that we're seeing alter protection among revise age groups. But that's never amazing and it's never the 1st period that we've seen vary immunological responses in vary patient groups." The company "remains entirely committed"to further developing the vaccine, he says. GSK has promised apt sell the vaccine at the cost of manufacturing plus 5% that ambition be reinvested into a fund as research into vaccines against malaria or other abandoned tropical diseases.
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This Isnt About Cloning - ScienceNOW
ARLINGTON, VIRGINIA--The President's Council aboard Bioethicshas come up with a proposal that it hopes will crash the stalematein Congress over anticloning legislation: a measure that doesn'thave the word "cloning"within it. The fancy was unveiled along a meetinghere yesterday in the council's report, Reproduction andResponsibility: The Regulation of New Biotechnologies.
The report attempts to set some baseline ethical parameters forthe booming assisted-reproduction industry. As council preside LeonKass points out,ルブタン コピー, that industry is the gateway to always the new[reproductive] technologies," from preimplantation diagnosis togenetic manipulation.
In addition to proposing a diversity of ministry research, datacollection,ルブタン ブーツ, and monitoring, the committee recommends a flurry oflegislative initiatives "to defend the boundaries meantime publicdebate goes aboard over the intricate issues raised along new assisted-reproduction technologies, said Kass. These measures includeprohibiting the creation of anybody animal-human hybrids; a ban onresearch aboard embryos more than two weeks after fertilization,ルブタン 靴, a forbid onthe commercialization of human embryos, and a prohibition onattempts to conceive a babe from fetal tissues. "No newborn shouldbe able to advert [its] mum alternatively father was a fetus,バーバリーバッグ 新作,an embryo,alternatively astem booth said Kass.
Therein lies the council's approximate to the cloning issue. Itproposes legislation to forbid attempts to conceive a infant"byany form other than the union of eggs and sperm." Several councilmembers said they thought this resemble might be magnetic tolawmakers who have blocked bills that would forbid reproductivecloning only never research cloning. Such bills face oppositionbecause onward allowing research cloning, they implicitly require thedestruction of cloned embryos that are created but cannot beimplanted. The council proposal sidesteps this issue,because itmakes not mention of cloned embryos--an near that council memberMichael Gazzaniga called "a cloning version of 'don't ask, don'ttell.' "
Will it fly aboard Capitol Hill? William Doerflinger, spokespersonfor the U.S. Conference of Catholic Bishops, says not"It doesn'tban cloning," he notes. Tony Mazzaschi of the Association ofAmerican Medical Colleges agrees, saying,ルブタン イブニング, "I don't discern how the Kassreport want alter the political basic theory as proponents of atotal forbid aboard cloning.
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Science Careers Blog July 2007 Archives
They've been having some pastime over by the as forum host and moderator Dave Jensen hosted a cowboy wisdom" contest,バーバリー 財布. He posted a account of aphorisms and asked posters to favor an alternatively more) and apply it to careers. Several of were beauteous good merely onward poster "Ken") stole the show and carried away the prizes (a cluster of career-related books):
"Never ask a barber whether he thinks you need a haircut."
Well, lemme tell y'all about a low point amid my life as young genewrangler. I mean, it was lower than a caterpillar's abdomen I took tofeelin’ favor I been rode hard and hung up rainy I looked approximately mylittle age laboratory and I begin to wonderin’ whether there ain’t somethin’else out there. My wonderin’ edge to thinkin’ and my thinkin’ got metalkin’ about looking outside of this here little fenced in patch ofdirt.
The brain of the laboratory, a lifelong cowboy gets to hearin’ meand he pulls me aside an daytime and he says, “Why don’t you saddle upbeside me, hoss. We’re gonna have ourselves a mini talk.”
Well, he ain’t never taken much interest among my wonderin’s ahead so I advert “Well, that would be sturdy fine!”
He sits me down and he points his finger distant outdoor the fences ofour mini laboratory to a blot out there aboard the horizon and he says,“Beautiful,ディーゼル 時計 メンズ, ain’t she?”
“Yeah,” I agreed. “I been wonderin’ what’s out there. You reckonthere ain’t other jobs out there as a guy what been wranglin’ up genesfor resemble ten turns of the seasons? I mean, there ain’t been no jobopenin’ up to escape my own herd ‘round these parts. A man gets tothinkin’ whether perhaps there ain’t somethin’ else he’s suited to.”
Well, his face got more serious than a junebug among a glass ofsasparilla, and he says to me, “Hoss, there ain’t nothin’ out there foryou. Them other ranches are institutionalized. Alls they consideration almost isprofits and losses. Young ranch hand prefer you would be eaten up andused. I reckon you should obtain after to your pew quickly You sit tight andkeep aboard wranglin’. Somethin’ll come along quite soon as you. Ain’tnothin’ outdoor these here fences.”
Well, I got behind to my pew,barely that there sundown well, she keptcallin’ to me. She was so bright from here. Seemed to me that the onlyone gettin’ anything out of always my wranglin’ by the pew was the oldcowpoke who ran this kit Seemed impossible that there weren’tnothin’ out there. Maybe that old cowpoke don’t know what he’s talkin’about. Maybe he does know what he’s talkin’ almost and he impartial deficiency tomake sure that this ranch hand keeps this kit wranglin’.
So,one day I waited till the boss' backward was turned, and I headedout to that horizon. I swear she never got not closer nomatter how distant Iwent and there's stories to be told virtually that rove and themountains what had to be climbed,クリスチャンルブタン,barely swear if one daytime I didn’t happento find myself in a current ranch.
Life amid this ranch was much change Yeah, this ranch had hereyes set on turnin’ a profit,merely I affirm that this weren’t a badthing! Seemed to me, the wranglin' was much the same as I had knownbefore. But,ルブタン フラッツ, I swear I saw equipment I ain’t never seen ahead Suremade my gene wranglin’ much faster. Damn whether I couldn’t wrangle up somethings that I never thought could be done forward I likewise got myself anoutfit of ranch hands who always pitch surrounded to obtain the wranglin’ done fasterthan a long tailed cat amid apartment full of rockin’ chairs. And, I can’t befor sure,barely it do arise that the bosses of this here ranch absence tomake sure that meantime I bunk down for the night,Diesel リュック, that my head is a’layin’a mouthful more comfortable so’s I’m rested up for the subsequently day’s genewranglin’.
I surmise what I’m a’tryin’ to advert namely askin’ a cowboy who ain’tnever been off the ranch if you ought look along other opportunitiesoutside them fences namely prefer askin’ a barber if you need a haircut.
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Why Your Brain Loves That New Song - ScienceNOW
When jazz legend John Coltrane 1st heard Charlie Parker movement the saxophone, the melody beat him "right between the eyes," he once said. According to neuroscientists, Coltrane was precise right. When we listen melody that we like even for the first period a chapter of the brain's award system namely activated, a present study has shown. The region, called the kernel accumbens, determines how much we sum the song—even predicting how much a person namely willing to expenditure as the current alley.
"It's a lovely, lovely piece of research," says song psychologist David Huron of Ohio State University,クリスチャンルブタン メンズ, Columbus, who was never involved in the study The results ambition aid scientists understand why humans attach so much amount to abstract sequences of sound waves. "Music is an of those oddball asset he says. "It's never by always explicit that it has any sort of survival value"
A favorite song,バーバリーブラックレーベル,if a power rock anthem alternatively a soulful acoustic ballad, evokes a deep emotional response. Neuroscientist Valorie Salimpoor recalls once listening to Johannes Brahms's "Hungarian Dance No.five meantime driving. The melody moved her so profoundly that she had to pluck over. Intrigued at the experience, Salimpoor joined Robert Zatorre by McGill University's Montreal Neurological Institute in Canada to learn how song affects the brain In 2011, she and Zatorre confirmed that dopamine, a award neurotransmitter,is the source of such intense experiences—the "chills"—associated with a favorite chip of song They showed that but likewise equitable a moment before—as whether the pate was anticipating the crescendo to come.
Salimpoor,immediately by the Rotman Research Institute in Toronto,ルブタン 激安, Canada, wondered whether the response was due to the melody itself alternatively to participants' emotional attachment to it. She recruited 19 volunteers, 10 men and nine women retired 18 to 37, who shared self-reported dulcet tastes. "Indie" and "electronic" proved highest new Salimpoor played 30-second samples of 60 songs they'd never heard before Within an iTunes-like consumer interface, the volunteers then bid aboard how much they'd be willing to expenditure for every alley up to $2. To acquaint the experiment more realistic, participants used their own money and received a CD of their purchased tracks at the kill of the study.
Salimpoor monitored how the volunteers' brains reacted to the song using MRI.only onlyactivity in the kernel accumbens was well-correlated to how much the participants were willing to pay she and colleagues report online today in Science.
The kernel accumbens is believed to be responsible for pleasant surprises,バーバリーバッグ レディース,or affirmative prediction error," as neuroscientists call it. Our brains are well-suited to using patterns, such as the architecture of melody to foresee the hereafter"We're constantly product predictions,even if we don't know the song Salimpoor says. "We're still predicting how it ought unfold."
These predictions are based aboard past musical experience, so classical fans will have different expectations than punk devotees. But while the melody turns out better than the head expected, the core accumbens fires off with joy Salimpoor concluded that the kernel accumbens works in concert with pattern recognition and higher-order analysis centers to appoint measure to melody.
Vinod Menon,バーバリーブルーレーベル, a cognitive neuroscientist at Stanford University in Palo Alto, California, wonders if the presence of lyrics in some tracks introduced confounding variables. "We don't know whether it's the dulcet sounds alternatively the linguistic components that drove some of these effects," he says. Salimpoor responds that previous research showed similar pate effects using only instrumental melody Lyrics, she says, did not arise to skew listener's purchasing decisions.
Next, Salimpoor want investigate anew district of the head the superior temporal gyrus. She aims to ascertain how this region, which stores a record of the sounds we've heard, shapes our future musical preferences. Eat your megalopolis out, Pandora.
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Japanese Guts Are Made for Sushi - ScienceNOW
Americans don't have the guts for sushi. At least that's the implication of a current learn which finds that Japanese folk harbor enzymes within their intestinal bacteria that help them digestion seaweed--enzymes that North Americans paucity What's more, Japanese may have 1st acquired these enzymes at eating bacteria that thrive aboard seaweed in the open ocean.
Mirjam Czjzek didn't set out to compare cross-cultural eating habits. Instead,バーバリーロンドン, the chemist along the Station Biologique de Roscoff,on the coast of Brittany within France, was interested surrounded what it takes to digest a chip of seaweed. Unlike surrounded land plants, the carbohydrates that tell up seaweed are spangled with molecules of sulfur, so special enzymes are needed to crash them down.
To graph out accurate which enzymes are essential Czjzek and colleagues embarked aboard what she calls "treasure-hunting surrounded the marine bacterial genome." The researchers focused on Zobellia galactanivorans, a marine bacterium known to nibble on seaweed. The hound turned up five genes in Z. galactanivorans that seemed to code for enzymes that could break down the particular carbohydrates bottom among the marine algae. When the researchers transferred these genes to another bacterium forced to eat seaweed carbohydrates, they pedestal that two genes were primarily active.
Czjzek wondered where else these genes might be lurking. So she accustom a computational manner known as BLAST to scan vast banks of metagenomic data—the genomes of bacteria gathered from the environment—for sequences that matched up with the two Z. galactanivorans genes. That's when the surprise came,ルブタン イブニング.
"They were forever besides one from marine bacteria," Czjzek says. "The an exception ... came from human gut samples." The bacterium within question is known as Bacteroides plebeius,ルブタン メンズ, and it has been bottom only among Japanese folk Wondering if the enzymes were especial to Japanese individuals, Czjzek's crew compared the microbial genomes of 13 Japanese people with those of 18 North Americans. Five of the Japanese subjects harbored the enzyme,only among the North Americans, "we didn't find a single an says Czjzek, whose troop reports its findings tomorrow in Nature.
Where would bacteria inside the human gut get ahold of a seaweed-digesting enzyme? Czjzek speculates that they could have grabbed it from bacteria that live aboard the seaweed. She notes,for instance that along to levy records dating after to the 8th century C.E., seaweed was accustom as a form of expense amid Japanese society. "That shows the importance of this type of agreeable Czjzek says. With nori, the seaweed adapt to coat sushi or wakame, a green seaweed constantly served in miso soup,バーバリーブルーレーベル, being consumed daytime subsequently day the bacteria amid the gut would have a accident to incorporate genetic material from their marine-dwelling cousins. "Traditionally, [the Japanese] eat [seaweed] crude never sterile says Czjzek. "This makes the contact feasible
The aptitude to munch on a few supplement carbohydrates might have given these gut bacteria a thigh up over their thousands of competitors, says Czjzek. It likewise may assistance their human hosts. Because gut bacteria can squeeze stamina from carbohydrates that human enzymes can't crash down, these adapted microbes might aid Japanese who dine aboard seaweed get more nutrition from their repast than do North Americans, she says.
Scientists have thought that gut bacteria might pick up genes from other microbes, a process known as lateral gene transfer,ルブタン 靴 メンズ,but there hasn't been an instance this explicit onward says Ruth Ley, a microbiologist along Cornell University. "I think it's the first demonstration of how people's culture has impacted the [bacteria among the] gut."
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Video Aimed by LGBTQ Youth Takes NASA to New Heights Scienc
namely globe renowned as breaking barriers,plus likewise as some pretty amazing videos possibly most famously,クリスチャンルブタン 店舗, last summer's astounding about the Curiosity Mars aerodrome But for sheer cheek plus emotion, probably nothing amid its oeuvre matches the on 30 March. "It Gets Better" might be called "9:53 minutes of encouragement." In it,a great many NASA employees, plus performer George Takei, AKA of the starship Enterprise group assure lofty school and college-aged lesbian,ルブタン ブーツ, gay,バーバリーブルーレーベル, bisexual,ディーゼル 時計 ユニセックス, transgender,ディーゼル 時計, queer plus questioning (LGBTQ) individuals who are victims of bullying and/or have been affected by bullying" that their lives tin and aspiration amend and that along NASA sexual orientation makes not distinction to people's competence to chase their careers.
Created according the at NASA's (JSC), the notable"Houston" of forever those memorable area flights, "It Gets Better" carries the agency's imprimatur. It features JSC adviser plus sometime astronaut assuring viewers that NASA values "the skills plus talents of each individual, regardless of differences including sexual orientation and gender personality plus that despite the "difficulties"plus"hardships" members of the target multitude may be undergoing quickly"I promise life want acquire better."
Roger, Houston. Copy that. The film namely beneath.
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Electronics Go Viral - ScienceNOW
Some viruses occasion ailment pandemics, and death. But scientists have pedestal a current access to put along least one type of virus to agreeable use. A troop of researchers has harnessed bacteria-infecting viruses to generate power onward converting mechanical energy into electricity. The virus power package isn't additionally mighty enough to flee your cell phone or iPod. But as the microbes are harmless to humans, they may one daytime certify serviceable for powering medicinal sensors inside our bodies.
Devices that convert mechanical energy into electricity,alternatively vice versa,ディーゼル バッグ, aren't anything current They take advantage of the "," which was first discovered among 1880 and is a attribute of certain crystals, proteins, and even DNA. Piezoelectric materials consist of molecules that have more affirmative electrical charges on one annihilate of the molecule than aboard the other These molecules bolt splice within a repeating array with their affirmative ends forever facing an access and their negative ends facing the inverse access Compressing the material increases this polarization and generates an cordless voltage that can be accustom to do go Alternatively,クリスチャンルブタン2013新作,according adding electricity, you can correction the mainstream of a piezoelectric material. Today, piezoelectrics are acclimate surrounded everything from cordless lighters to scanning tunneling microscopes.
Most piezoelectric generators among use today are made with crystals of the ceramic adviser zirconate titanate (PZT). PZT namely detrimental so among recent yearsresearchers have been developing , such as zinc oxide. But some of these alternatives are priceless and challenging to manufacture. So Seung-Wuk Lee, a bioengineer by the University of California, Berkeley, and his colleagues there and along neighboring Lawrence Berkeley National Laboratory opted to discern if viruses could assistance them out.
The fancy isn't as wacky as it seems. While a graduate student along the University of Texas, Austin, Lee had developed bacteria-infecting viruses called phages that bind to characteristic types of inorganic semiconductor nanoparticles. He likewise knew that DNA and certain proteins—the building blocks of the phages—are piezoelectric. So he and his colleagues went looking for piezoelectric phages. They bottom an called M13 bacteriophage, whose narrow tube-shaped outer coat consists of virtually 2700 copies of a rod-shaped protein with affirmative charges aboard one kill and negative charges on the additional The proteins within the phage amass with their affirmative ends leaning into the hollow elite which allows them to grasp onto the negatively charged DNA that the phages inject into bacteria during an infection.
To test whether the phages could generate power, Lee and his colleagues 1st genetically engineered the virus's proteins to asylum additional copies of a negatively charged amino mordant called glutamate. They added glutamates to the negatively charged kill of the protein to add its negative charge and accordingly its piezoelectric properties. To tell a generator, the researchers laid down a film of millions of these phages atop an electrode. The phages naturally amass themselves lying flat,バーバリー財布 レディース, side onward side,always pointing among the same direction.
The Berkeley troop layered several of these viral films atop one anew to enhance the piezoelectric accomplish and next capped the stack with a second electrode. As the researchers report online this week surrounded Nature Nanotechnology, that could light up the digit an aboard a small fluid crystal exhibit.
The new generator produces far fewer power than conventional piezoelectric devices. Nevertheless,ルブタン パリ, Zhong Lin Wang, a materials scientist by the Georgia Institute of Technology surrounded Atlanta says, "It shows the feasibility of expanding the nanogenerator into biostructures, which can be important as medicinal and biological applications,バーバリー 時計," such as implantable sensors as diagnosing blood sugar levels for diabetics. In an exertion to acquaint that possible Lee and his colleagues are quickly working to direct the evolution of the viruses to tell them better power producers.
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You Can't Have Success if You Don't Get in the Game Science
In today's society, computers and assorted forms of technology are ubiquitous, especially in scientific research. Through one NSF-IGERT (Integrative Graduate Education Research and Training) acknowledge from the , (WSU) in Detroit, Michigan,ルブタン ギャラクシー, has funding to support graduate research fellowships in the applications of high-performance computing. The fellowships have one anniversary paid stipend of $25,000 and comprise tuition and health-care scope Eligible research fields include:
With funding from the NSF-IGERT grant the interdisciplinary high-performance computing programme by WSU has expanded to approximate out to students by all levels. For the summer 2003 agenda research fellowships ambition be easily as undergraduate students. Additionally,クリスチャンルブタン, interested lofty educate students may also participate. In fact during the summer 2002 programme a Detroit high teach student conducted research in high-performance computing and simulation dealing with the fragmentation of protonated diglycine (a small peptide ion) meantime it collides with a diamond surface.
The student was asked to annotate on what she liked maximum virtually her summer research experience. "It's the academic growth [I] gained,ルブタン ピープトウシューズ, and the exposure and enrichment [that] afforded me an insight into a feasible calling in this district said this student, "I am yet before in the game related to a possible academy curriculum of please Although the placement of lofty educate students is finite to the Detroit metropolitan area opportunities in high-performance computing do exist as undergraduate (summers) and graduate (year-round) students at WSU.
Clearly, high-performance computing namely a growing area that offers innumerable applications and research-development experiences. A large range of skills namely needed for success in this district of study That includes problem-solving and decision-making skills; communication skills (written and verbal); calculator and evaluating skills; and the aptitude to work in teams. These skills can be applied never only to calculator science and mathematics but likewise to areas such as biochemistry, biology, materials science, and engineering.
However, given the breadth of research areas covered surrounded the cardinal focus areas of the programme the opportunities as students to acquaint meaningful contributions (and ascertain jobs upon graduation) are legion. Graduating students might ascertain employment in,ルブタン 銀座,case in point academia, national research laboratories, pharmaceuticals, industrial anesthetic diagram fabrication and automotive, medical/health professions such as bioinformatics.
Why Wayne State?
WSU namely 1 urban commuter institution with a perfect student enrollment of more than 31,000 students, of which 23.84% are African American,five.47% are Asian Pacific Islander, 1.94% are Hispanic, and 0.38% are American Indian/Alaskan Native. This makes WSU the third largest school in Michigan. . Each annual WSU ranks in the height 10 nationally in terms of the number of bachelor's degrees awarded to students of African descent.
The university as well as its science and engineering departments,is committed to increasing diversity at the undergraduate and graduate class There are a diversity of minority programs by WSU, such as the Summer Undergraduate Research Experience in the biomedical sciences as minority students, two National Institutes of Health programs,that Minority Access to Research Careers and Minority Biomedical Research Support. These programs advocate a variety of science majors, such as chemistry, biology,pharmacy and chemical toxicology.
All students are salute to petition for the NSF-IGERT undergraduate and graduate fellowships,merely we particularly encourage minority students to petition as these funding opportunities. There are hundreds of students across the nation with the capacity set to be successful in high-performance computing,バーバリー財布 レディース,but the only way to realize success alternatively approach this latent namely to acquire in the game."
Dr. Keith B. Williams namely the consultant of the office of Minority Student Initiatives at Wayne State. Dr. William L. Hase namely the interim chair for the Department of Computer Science and principal investigator of the NSF-IGERT grant More information nearly the and the can be found on the Web. For general information,bring e-mail to (Dr. Williams) or (Dr. Hase).
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ScienceAAAS Site Help About Us About Science plus AAAS
<img class="LeftImage" src="http://www.sciencemag.org/help/images/about_aaas.jpg" width="149" height="47" alt="AAAS, The Science Society" />
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About Science & AAAS ABOUT SCIENCE ,ルブタン 靴
Founded surrounded 1880 aboard $10,000 of seed money from the American inventor Thomas Edison, Science has grown to chance the world's leadership channel as scientific news,commentary and cutting-edge research, with the largest paid circulation of any peer-reviewed general-science everyday Through its print and online incarnations, Science reaches an estimated worldwide readership of more than one million. In content,too the daily is actually international surrounded scope; some 35 to 40 percent of the corresponding authors aboard its papers are based outdoor the United States. Its articles consistently rank among world's most cited research.
Science's presidency position stems from many factors:
Today,バーバリー傘, a centenary and a 15 min behind its founding, Science continues to publish the quite best within scientific research,バーバリー バッグ, news,ディーゼル 財布, and opinion. Whether you're concerned with AIDS, SARS,バーバリー 時計, genomic medicine, Mars,alternatively global warming,alternatively equitable paucity to keep alongside of where the technological world namely and where it's going, you want find something worthwhile within Science.
THE SCIENCE WEB SITES
In keeping with its tradition of breaking present layer among scientific publishing, Science was a pioneer among moving annual content online, beginning the shift amid 1995 with the start of Science Online, of our online science jobs site, Science Careers, and of our profession mutation site for young scientists, Next Wave (which has immediately been merged with the Careers site). Since afterwards our Web family has grown among scope:
In addition to developing new online products and services, Science has shown leadership in other areas central to our core constituency -- the working scientific researcher.
ABOUT AAAS
AAAS -- the American Association as the Advancement of Science -- namely Science's publisher, and a mastery voice for the interests of scientists worldwide. Founded among 1848, the association namely the world's largest general-science society; amongst its primary membership and its affiliations with some 262 technological societies and academies, it serves 10 million individuals. The organization's mission, simply stated,namely to "advance science and serve society". This it does never only amongst publication of Science,but amongst annual meetings, public outreach, activities to mushroom international technological cooperation and sustainable evolution policy advocacy, educational programs,press relations, and efforts to addition the public understanding of -- and appreciation of -- the technological company
We hope you'll take a moment to visit AAAS's Web site, , to discern the many things AAAS is doing to beyond the interests of the technological community -- and that you'll consider yourself.
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How Do Organs Know When They Have Reached the Right Size
Summary ,ディーゼル トートバッグ
Developmental biologists have base dozens of proteins and genes that play a character surrounded the growth of plants plus animals. But how growing organs plus organisms can sense their size and understand while to block is still a puzzle Developmental biologists continue to explore that puzzle,ルブタン 靴 メンズ,plus the current objects of their attention are imaginal discs,Diesel 時計, flattened sacs of cells that grow during fruit flies' larval stages. Scientists tin too change the rate by which imaginal disc cells detach prompting both likewise many alternatively not enough cells to form,バーバリー アウトレット,merely the compartment size adjusts so that organ size remains the same. How does a developing organ somehow senses the mechanical forces aboard its growing plus dividing cells?
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Opportunities and Challenges amid Next Generation Standards
Summary ,ディーゼル 時計 レディース
Imagine namely politicians plus the folk they portray understood how human action impacts Earth,ディーゼル 財布, including atmosphere And imagine that they had learned how to reckon claims,ルブタン フラッツ,discuss from guarantee and comprehend models. These understandings plus practices are prominent in the U.S. National Research Council (NRC) architecture to consultant the subsequently iteration of standards as U.S.basic plus secondary educate students (1). We argue how aspects such as authorship,ルブタン サンダル, coordination amid subject areas,バーバリー傘,plus broader goals of college plus profession readiness give reason to believe that this effort want be extra successful than previous attempts to use standards to amend science pedagogy two.
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Aerosols Altered Asian monsoons - ScienceNOW
Summer monsoons provide much of the water for agriculture forestry,クリスチャンルブタン 店舗, wetlands, and fisheries aboard the Indian subcontinent. But the pattern of rain within the region has shifted dramatically during the last half of the 20th century: The pregnant Ganges Valley within north-central India became drier,while northwestern India, southern India, and Pakistan got wetter. In a current study researchers pin the reproach aboard sulfate, soot,ディーゼル 時計, and other aerosol particles from human activities.
The rains that have long drenched South Asia from June apt September originate as humidity from the Indian Ocean and the Arabian Sea, carried forward monsoon winds blowing from southwest to northeast. When the moist air reaches the Indian subcontinent, it rises and begins apt cool, and the water it carries falls out as torrential rains.
The monsoon winds themselves are driven onward what is essentially a colossal heat engine, says climate scientist Yi Ming of the Geophysical Fluid Dynamics Laboratory/NOAA within Princeton, New Jersey. In the summer, the Northern Hemisphere receives significantly more vigor from the sun than the Southern Hemisphere. The atmosphere over landmasses such as the Indian subcontinent likewise heats up more rapidly than it does over water. Because air flows from regions of higher suppression (denser, colder atmosphere apt lower pressure (warmer air these heat imbalances construct winds that blow strongly onto the Indian subcontinent. And those winds carry a lot of humidity.
So what might another that precipitation pattern? In addition to natural variations among solar radiation, greenhouse gases such as carbon dioxide and aerosols such as soot can have 1 impact aboard the summer monsoon. Ming and colleagues compared the history of rainfall from 1951 to 1999 with multiple climate simulations that showed how precipitation during the South Asian summer monsoon would adaptation based aboard aerosols alone, greenhouse gases alone, natural forces alone, and entire of these factors working in the meantime.
Aerosols corner out apt be the guilty the researchers report online today amid Science. Different aerosols—such as sulfates from the burning of fossil fuels and soot from the burning of local cook fires alternatively large industrial fires—can have varying impacts aboard climate, so the researchers looked only at the net effect of always of the aerosols in the region's air.
Ming says that the . Without that strong heat contrast,ルブタン イブニング, the winds slow, and the rain begins apt fall over the ocean and southern India rather than pushing forward into the north-central region. Those changes apt the water cycle could also appending the incidence of water-borne diseases such as cholera and hepatitis,バーバリーベルト メンズ, as well as mosquito-borne malaria.
"I think that they have helped solve a dilemma says Peter Webster, a climate scientist by the Georgia Institute of Technology amid Atlanta. But,バーバリー バッグ, he cautions, there is still a lot of uncertainty within aerosol distributions, particularly ahead nearly 1970,when satellites began collecting better data.
Although the team's prototype predictions show "convincingly" that aerosols are the major contributor apt rainfall changes among the South Asian monsoon, notes Andrew Turner, a climate scientist by the University of Reading within the United Kingdom, it fails to explain recent changes in the East Asian monsoon. The simulations foretell that aerosols would enhance drying over southern China,only the inverse has actually happened.
There are still much uncertainties amid the study Ming agrees. The South Asian monsoon learn is part of a longer-term effort apt include precipitation as well as temperature among models of climate and to gradually zoom among from the universal average models to more continental,or regional-scale, models. "For immediately Ming says, "we're focusing on the tropics, the Sahel, the Amazon, the southwestern United States. [India] namely our test case apt discern how we're act"
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