Post List

  • July 15, 2010
  • 03:10 PM
  • 775 views

Fossil primate Saadanius provides context for the ancient ape/Old World monkey split

by Laelaps in Laelaps

Imagine that there was no primate fossil record. No hominins, no Proconsul, Dryopithecus, no Eosimias, no Darwinius -- nothing. Now, given this dearth of fossil material, you could be excused for systematically organizing primates according to the stark divisions apparent between living species. Our species, while clearly a primate, would seem to stand by itself, [...]... Read more »

Zalmout, I., Sanders, W., MacLatchy, L., Gunnell, G., Al-Mufarreh, Y., Ali, M., Nasser, A., Al-Masari, A., Al-Sobhi, S., Nadhra, A.... (2010) New Oligocene primate from Saudi Arabia and the divergence of apes and Old World monkeys. Nature, 466(7304), 360-364. DOI: 10.1038/nature09094  

  • July 15, 2010
  • 02:53 PM
  • 1,076 views

Odor-prints: individual but genetic connections unclear

by Aurametrix team in Olfactics and Diagnostics

Odor is like fingerprints or facial features - it's unique.  Yet no single measurement could be easily applied to recognize an individual. GC/MS measurements can be used to analyze mixtures of acids, alcohols, aldehydes, hydrocarbons, esters, ketones, and nitrogenous molecules in human odor. Complex algorithms mining patterns help to pinpoint the signatures. But could these signatures be easily derived from genetic makeups?Recent article published in the Journal of Chemical Ecology looked at ........ Read more »

  • July 15, 2010
  • 02:14 PM
  • 986 views

Creation science validates evolution, too

by Bjørn Østman in Pleiotropy

A method used by creation scientists validates evolution... Read more »

  • July 15, 2010
  • 02:05 PM
  • 2,011 views

Determining the Fate of Carbon in a Mixotrophic Anemone

by Kevin Zelnio in Deep Sea News

It has been known for a long time that some anemones form symbiotic relationships with Zooxanthellae. For a while it was assumed that the anemones mainly persisted by utilizing carbon translocated from its symbionts, called autotrophy, but they can may supplement this by heterotrophic feeding on plankton. A study by . . . → Read More: Determining the Fate of Carbon in a Mixotrophic Anemone... Read more »

  • July 15, 2010
  • 01:25 PM
  • 568 views

Fine-Scale Drug Distribution in Lung Tissue Slices via Imaging Mass Spectrometry

by Michael Long in Phased

Per Andren (Uppsula University, Sweden) and coworkers have combined a fine-scale drug quantitation technique with standard histological imaging to yield a powerful approach for evaluating drug distribution within tissue slices. This news feature was written on July 15, 2010.... Read more »

  • July 15, 2010
  • 12:13 PM
  • 1,563 views

Thousand light year long bubble surrounds black hole in nearby galaxy

by Kelly Oakes in Basic Space

The Eddington luminosity is the exact brightness a black hole has when the outwards and inwards forces on it balance. It may seem strange to talk about the brightness of a black hole, as usually we think of them as not letting anything – including light – escape their gravitational pull, but in reality this [...]... Read more »

  • July 15, 2010
  • 09:49 AM
  • 587 views

More Fecal Findings!

by avi_wener in American Biotechnologist

At the risk of developing a complex that all I talk about is fecal matter, for the second time this week I would like to bring your attention to another study that focuses on the gut and its microbial habitat. A couple of days ago I discussed the challenge of identifying the huge number of [...]... Read more »

Alejandro Reyes, Matthew Haynes, Nicole Hanson, Florent E. Angly, Andrew C. Heath, Forest Rohwer, & Jeffrey I. Gordon. (2010) Viruses in the faecal microbiota of monozygotic twins and their mothers. Nature, 334-338. info:/10.1038/nature09199

  • July 15, 2010
  • 09:41 AM
  • 1,384 views

Researchers create 'lesbian' mice by deleting a single gene

by Mo in Neurophilosophy

DELETION of a single gene switches the sexual orientation of female mice, causing them to engage in sexual behaviour that is typical of males. Korean researchers found that deleting the FucM gene, which encodes an enzyme called fucose mutarotase, causes masculinization of the mouse brain, so that female mice lacking the gene avoid the advances of males and try to mate with other females instead. The findings probably have little relavence to human sexual orientation, however.

FucM is one of a f........ Read more »

  • July 15, 2010
  • 09:10 AM
  • 760 views

Tarbosaurus: A Predator and a Scavenger With a Delicate Bite

by Brian Switek in Dinosaur Tracking

Back in the 1990s, paleontologist Jack Horner proposed that Tyrannosaurus rex—popularly cast as the most fearsome predator of all time—was really a giant-sized scavenger. With its small arms, a large part of its brain devoted to analyzing smells, and a mouth full of rail-spike-sized teeth, the tyrant dinosaur seemed to be better-suited to processing the [...]... Read more »

  • July 15, 2010
  • 08:37 AM
  • 555 views

The crisis: put down the pruning shears

by sarcozona in gravity's rainbow



Part of applying to graduate school is figuring out who I want to work with and what questions I want to try to answer.  To do this, I’m reading a lot of papers.  I’d hate for all this paper reading to keep me from blogging, so I’ve decided to share some of the more interesting [...]... Read more »

  • July 15, 2010
  • 08:00 AM
  • 1,117 views

Not exactly breaking news: sex reduces anxiety!

by EcoPhysioMichelle in C6-H12-O6 (old)

Despite causing elevated levels of corticosteroids, physical activity results in an increase in mental health and brain function for most people. This phenomenon has recently been linked to the idea that exercise is mentally linked to personal reward.... Read more »

  • July 15, 2010
  • 07:00 AM
  • 975 views

How many journal articles have been published (ever)?

by Duncan Hull in O'Really?

Earlier this year, the scientific journal PLoS ONE published their 10,000th article. Ten thousand articles is a lot of papers especially when you consider that PLoS ONE only started publishing four short years ago in 2006. But scientists have been publishing in journals for at least 350 years [1] so it might make you wonder, how many articles have been published in scientific and learned journals since time began?... Read more »

Oldenburg, H. (1665) Epistle Dedicatory. Philosophical Transactions of the Royal Society of London, 1(1-22). DOI: 10.1098/rstl.1665.0001  

Jacsó, P. (2010) Metadata mega mess in Google Scholar. Online Information Review, 34(1), 175-191. DOI: 10.1108/14684521011024191  

  • July 15, 2010
  • 06:08 AM
  • 1,149 views

Detoxifying cassava

by Jeremy in Agricultural Biodiversity Weblog


Strategies that minimize one risk…may augment another risk… Peasant farmers are perfectly conversant with such linkages. The neglect of peasant agriculture by both donors and governments is among the deeper causes of current crises, along with the increasing inequality that deprives them of secure tenure to land and other resources, reducing benefits they can expect [...]... Read more »

  • July 15, 2010
  • 05:26 AM
  • 815 views

Men Order Big Steaks to Avoid Cupcake Outing

by Ultimo167 in Strong Silent Types

Who would have thought that men put so much thought into not ordering fish but steak, bangers and mash but not strawberries and cream? Gal and Wilkie (2010) say more please and many men end up with perpetual tummy ache.... Read more »

  • July 15, 2010
  • 04:41 AM
  • 815 views

Really fine grained genetic maps of Europe

by Razib Khan in Gene Expression

A few years ago you started seeing the crest of studies which basically took several hundred individuals (or thousands) from a range of locations, and then extracted out the two largest components of genetic variation from the hundreds of thousands of  variants. The clusters which fell out of the genetic data, with each point being [...]... Read more »

O'Dushlaine, C., McQuillan, R., Weale, M., Crouch, D., Johansson, �., Aulchenko, Y., Franklin, C., Polašek, O., Fuchsberger, C., Corvin, A.... (2010) Genes predict village of origin in rural Europe. European Journal of Human Genetics. DOI: 10.1038/ejhg.2010.92  

  • July 15, 2010
  • 03:10 AM
  • 537 views

Gold catalysed Sonogashira?

by Rik in NNNS chemistry blog

A year ago Buchwald and Bolm investigated some alleged iron-catalysed coupling reactions and found that copper present in minute quantities as a contaminant was the true catalyst. In a similar case, Lauterbach et al. in a new publication argue that several gold-catalyzed coupling reactions reported in the recent literature are in fact co-catalyzed by hidden palladium. Gold just cannot do it on its own.
... Read more »

Lauterbach, T., Livendahl, M., Rosellón, A., Espinet, P., & Echavarren, A. (2010) Unlikeliness of Pd-Free Gold(I)-Catalyzed Sonogashira Coupling Reactions. Organic Letters, 12(13), 3006-3009. DOI: 10.1021/ol101012n  

  • July 15, 2010
  • 03:00 AM
  • 881 views

The Sound of the Sea

by The Twenty-first floor in The Twenty-first floor

Far from being "The Silent World", the oceans are alive with sound. Marine biologist Andrew Guerin discusses how sound is important to marine animals and what effect noise pollution from human endeavours may have on ocean ecosystems.... Read more »

Slabbekoorn, H., Bouton, N., van Opzeeland, I., Coers, A., ten Cate, C., & Popper, A. (2010) A noisy spring: the impact of globally rising underwater sound levels on fish. Trends in Ecology , 25(7), 419-427. DOI: 10.1016/j.tree.2010.04.005  

  • July 14, 2010
  • 08:37 PM
  • 851 views

Can individuals perceive and understand speech without the ability to produce it?

by Greg Hickok in Talking Brains

"Yes" is the correct answer. Here's the background to the question:I finally mustered the courage (i.e., sufficient control over my blood pressure) to read Pulvermuller & Fadiga's recent (2010) review paper in Nature Reviews Neuroscience. But I don't want to talk about their paper -- yet. I want to discuss a paper they cite. Here is the context in which they cite it: P & F are, of course, arguing for the importance of the motor system in receptive language. After arguing correctly that sens........ Read more »

  • July 14, 2010
  • 08:00 PM
  • 863 views

Sit less, Move more

by Aurametrix team in Health Technologies

I am typing this standing in front of my computer. My tall chair is aside.  About a year ago I discovered that life is better if I stand while working some of the time. Then I found out that other people discovered it too, and more keep discovering. We hear it often: eat less and exercise. But this may not be enough. As shown in a recent study, exercise does not counteract the ill effects of sedentary lives, we should keep moving throughout the day too.  New York Times article about th........ Read more »

Dunstan, D., Barr, E., Healy, G., Salmon, J., Shaw, J., Balkau, B., Magliano, D., Cameron, A., Zimmet, P., & Owen, N. (2010) Television Viewing Time and Mortality: The Australian Diabetes, Obesity and Lifestyle Study (AusDiab). Circulation, 121(3), 384-391. DOI: 10.1161/CIRCULATIONAHA.109.894824  

Katzmarzyk PT, Church TS, Craig CL, & Bouchard C. (2009) Sitting time and mortality from all causes, cardiovascular disease, and cancer. Medicine and science in sports and exercise, 41(5), 998-1005. PMID: 19346988  

  • July 14, 2010
  • 06:05 PM
  • 1,406 views

Fosmid cloning: Alive and kicking

by epibio in EpiCentral

Although advances in next-generation sequencing technology have replaced the need for clone libraries in many laboratories, fosmid libraries are still useful in a variety of functional genomics studies.

Xu et al.1 present the first report of a host-specific restriction system associated with S-modification of DNA (phosphorothioation), instead of methylation. The authors observed that the enteropathogenic Salmonella enterica serovar Cerro 87, which possesses S-modified DNA, restricts DNA isolate........ Read more »

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