Post List

  • May 20, 2010
  • 01:00 PM

Everyone Rowing in the Same Direction

by Merry Youle in Small Things Considered

Is there such a thing as an obligatorily multicellular prokaryote? We presented a case for their existence before, one that fueled our evolutionary imaginations. Unlike the myxobacteria, for example, which have both unicellular and multicellular stages, some magnetotactic bacteria appeared to be multicellular throughout their lives. Their multicellular coordination is apparent from their complex swimming behavior, their...... Read more »

  • May 20, 2010
  • 11:38 AM

What controls where a species lives?

by Aaron Berdanier in Biological Posteriors

Pigot AL, Owens IP, & Orme CD (2010). The environmental limits to geographic range expansion in birds. Ecology letters PMID: 20412281Or, what prevents that species from expanding further?  Generally, we assume that the environment has something to do with controlling a species' distribution.  But, our understanding of this topic is surprisingly limited, given centuries of scientists prodding the question.  Part of the problem has been:a limited number of species analyzed with smal........ Read more »

  • May 20, 2010
  • 10:09 AM

A Closer Look at Ankylosaur Armor

by Brian Switek in Dinosaur Tracking

Many dinosaurs were adorned with spikes, horns and plates, but it was the ankylosaurs that took armor to the extreme. These dinosaurs were covered in bony armor from snout to tail-tip, yet, as a new study suggests, there may have been more to some of these structures than just attack and defense.
As reviewed by paleontologists [...]... Read more »

  • May 20, 2010
  • 09:39 AM

Tiny treasures - 100 million year old mammal hairs trapped in amber

by Laelaps in Laelaps

Mammal hairs preserved in amber specimen ARC2-A1-3. a - First fragment; b - Line drawing of first fragment; c - Second fragment; d - Line drawing of second fragment; e - Close-up of second fragment to show the cuticular surface.

About 100 million years ago, in a coastal forest located in what is today southwestern France, a small mammal skittered up the trunk of a conifer tree. As it did so it lost a few of its hairs, and this minor event would have been entirely unremarkable if two of tho........ Read more »

Vullo, R., Girard, V., Azar, D., & Néraudeau, D. (2010) Mammalian hairs in Early Cretaceous amber. Naturwissenschaften. DOI: 10.1007/s00114-010-0677-8  

  • May 20, 2010
  • 08:00 AM

Study links spearfishing with reef fish crisis

by Rob Goldstein in Conservation Maven

... Read more »

Godoy, N., Gelcich, S., Vasquez, J., & Castilla, J. (2010) Spearfishing to depletion: Evidence from temperate reef fishes in Chile. Ecological Applications, 2147483647. DOI: 10.1890/09-1806  

  • May 20, 2010
  • 08:00 AM

Women Are Fat - Men Are Just Big And Strong?

by Arya M. Sharma in Dr. Sharma's Obesity Notes

Being overweight or obese has been associated with a poor body image and a lower quality of life specially in females, but the impact on males is less clear.
This relationship was now examined by Saloumi and Plourde from McGill University, Montreal, in a paper just published in Psychology, Health & Medicine.
The analysis was based on [...]... Read more »

  • May 20, 2010
  • 08:00 AM

Clinical Psychologists’ Perceptions of Persons with Mental Illness

by Shaheen Lakhan in Brain Blogger

Many people have fabulous relationships with their psychologists. They feel supported, understood, well-liked. But there are also those who feel a little uneasy. Research by Lynn Servais and Stephen Saunders of Marquette University in Milwaukee, Wisconsin may have unearthed one of the reasons why.
Some psychologists have a hard time connecting with people with mental illness, [...]... Read more »

Servais, L., & Saunders, S. (2007) Clinical psychologists' perceptions of persons with mental illness. Professional Psychology: Research and Practice, 38(2), 214-219. DOI: 10.1037/0735-7028.38.2.214  

  • May 20, 2010
  • 07:58 AM

Excessive Daytime Sleepiness - Can be a Big Issue predictor.

by mc in begin to dig (b2d)

Sleep is so important. Sleepiness during the day may likewise be a really critical health marker. Sleepiness itself is usually taken as a sign that we just didn't get enough kip. Sometimes figuring out why is easy, and we can fix it; sometimes figuring out why is a little more elusive, and getting some knowledgable help is a great idea. But no matter what, we know chronic sleepiness"older adults"... Read more »

Baldwin CM, Ervin AM, Mays MZ, Robbins J, Shafazand S, Walsleben J, & Weaver T. (2010) Sleep disturbances, quality of life, and ethnicity: the Sleep Heart Health Study. Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 6(2), 176-83. PMID: 20411696  

Boulos MI, & Murray BJ. (2010) Current evaluation and management of excessive daytime sleepiness. The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques, 37(2), 167-76. PMID: 20437926  

Chokroverty S. (2010) Overview of sleep . The Indian journal of medical research, 126-40. PMID: 20308738  

  • May 20, 2010
  • 07:58 AM

Blogging in Academia: What Can It Do For You?

by Jason Goldman in The Thoughtful Animal

[Below is a longer, less edited version of an article I wrote for my department newsletter this month.]

Is science blogging something that belongs to Science or to Journalism? Clearly more and more scientists are communicating online. In a time when mainstream media are obliterating their science departments, science blogging is growing, and the few science journalists left are increasingly turning to science blogs for story ideas. And so is the general public. A recent press release from Scien........ Read more »

Editorial. (2009) It's good to blog. Nature, 457(7233), 1058. PMID: 19242426  

Editorial. (2009) Lines of communication. Nature Methods, 6(3), 181-181. DOI: 10.1038/nmeth0309-181  

  • May 20, 2010
  • 07:45 AM

Breast cancer gene study is a step forward, but tests are still some way off

by Cancer Research UK in Cancer Research UK - Science Update

Last week, researchers announced that they’d homed in on five more variations in our genetic code that are linked to a slightly increased risk of breast cancer. Cancer Research UK, together with the Wellcome Trust, funded the study, which was published in Nature Genetics. And, despite the post-election negotiations dominating the news, the study was [...]... Read more »

Turnbull, C., Ahmed, S., Morrison, J., Pernet, D., Renwick, A., Maranian, M., Seal, S., Ghoussaini, M., Hines, S., Healey, C.... (2010) Genome-wide association study identifies five new breast cancer susceptibility loci. Nature Genetics. DOI: 10.1038/ng.586  

  • May 20, 2010
  • 07:38 AM

Cross-protection and flu vaccines

by iayork in Mystery Rays from Outer Space

We know that we need to make new vaccines against influenza each year, because new flu strains arise and spread each year and the previous year’s vaccines don’t give protection against the new strains.  Of course, there’s intense research toward developing cross-protective vaccines.  Ideally, flu vaccines would work like measles vaccines — get a shot [...]... Read more »

  • May 20, 2010
  • 07:35 AM

Do I still like MBTI? (Part 3)

by David Winter in Careers - in Theory

Given the flaws and limitations of MBTI, is it possible to use it safely and effectively in career coaching or guidance? If you're careful, maybe.... Read more »

  • May 20, 2010
  • 05:51 AM

300 years of gecko literature, and the 'Salamandre aquatique' (gekkota part VI)

by Darren Naish in Tetrapod Zoology

So, you've had an introduction to the incredible leaf-tailed geckos (Uroplatus). In view of their bizarre appearance, it's perhaps not so surprising that leaf-tailed geckos have commanded attention for a long time and there's a large historical literature on these animals (see Bauer & Russell (1989) for review) [U. fimbriatus shown here; image by J. W. Connelly, from wikipedia]. Read the rest of this post... | Read the comments on this post...... Read more »

  • May 20, 2010
  • 03:59 AM

Environmental round up

by Elements Science in Elements Science

A look at this week's environmental news.... Read more »

Lyman, J., Good, S., Gouretski, V., Ishii, M., Johnson, G., Palmer, M., Smith, D., & Willis, J. (2010) Robust warming of the global upper ocean. Nature, 465(7296), 334-337. DOI: 10.1038/nature09043  

Vermeij, M., Marhaver, K., Huijbers, C., Nagelkerken, I., & Simpson, S. (2010) Coral Larvae Move toward Reef Sounds. PLoS ONE, 5(5). DOI: 10.1371/journal.pone.0010660  

  • May 20, 2010
  • 03:50 AM

Climate isn’t just about the atmosphere.

by Andy Russell in Our Clouded Hills

Most of our analyses of climate change have focused on the atmosphere and mostly over land and, therefore, mostly in the Northern Hemisphere.  This is simply because that is where our best data comes from. This is starting to change though. A paper published in Nature this week uses relatively new ocean data to show [...]... Read more »

Lyman JM, Good SA, Gouretski VV, Ishii M, Johnson GC, Palmer MD, Smith DM, & Willis JK. (2010) Robust warming of the global upper ocean. Nature, 465(7296), 334-7. PMID: 20485432  

  • May 20, 2010
  • 12:48 AM

Trehalose and Nematode Worm Longevity

by Reason in Fight Aging!

Researchers interested in metabolic manipulation as a path to extended healthy longevity continue to identify potential compounds to feed into the long drug development process. Many such compounds begin with worm or fly life span studies, as the major known genes associated with metabolism and life span are conserved between species - all the way from worms up to we humans. If a compound can make a fly live longer and can be shown to act on genes and mechanisms already associated with calorie r........ Read more »

  • May 19, 2010
  • 10:48 PM

Prestige Influences Chimpanzee Cultural Transmission

by Michael Long in Phased

Victoria Horner (Emory University, United States) and coworkers have shown that prestige influences the transmission of cultural innovations among chimpanzees. This news feature was written on May 20, 2010.... Read more »

Horner, V., Proctor, D., Bonnie, K. E., Whiten, A., & de Waal, F. B. M. (2010) Prestige Affects Cultural Learning in Chimpanzees. PLoS ONE, 5(5). DOI: 10.1371/journal.pone.0010625  

  • May 19, 2010
  • 06:45 PM

Wind Turbine Syndrome, Part II

by Elements Team in Elements

By: Rosemary Stephen PMed, (cert) EOH, IPM, Elements: Environmental Health Intelligence

There is a segment of the general population who cannot live close to wind turbines; if such turbines are installed, they complain that their quality of life is greatly affected. Are these people really experiencing symptoms or [...]... Read more »

Rosemary Stephen PMed, (cert) EOH, IPM. (2010) Wind Turbine Syndrome, Part II. Elements: Environmental Health Intelligence. info:/

  • May 19, 2010
  • 05:03 PM

IL-33—a new treatment against sepsis?

by geekheartsscience in geek!

New research shows that the novel cytokine interleukin (IL)-33 reduces sepsis and has “therapeutic potential” to treat this often fatal inflammatory condition. According to the study published this week in Nature Medicine, IL-33 promotes neutrophil recruitment to the site of infection, which is a critical host defence response, and the levels of the decoy IL-33 [...]... Read more »

Alves-Filho, J., Sônego, F., Souto, F., Freitas, A., Verri, W., Auxiliadora-Martins, M., Basile-Filho, A., McKenzie, A., Xu, D., Cunha, F.... (2010) Interleukin-33 attenuates sepsis by enhancing neutrophil influx to the site of infection. Nature Medicine. DOI: 10.1038/nm.2156  

  • May 19, 2010
  • 04:12 PM

Playing Violent Video Games for a Release That Never Comes

by Richard Landers in NeoAcademic

A recent article in Psychological Science investigates the use of violent video games by people to experience catharsis - a "release" associated with pent-up aggressive energy. They found that when angered, people are more likely to seek violent video games for an emotional release, despite the fact that playing violent video games does not seem to actually provide that release. ... Read more »

Bushman, Brad J. . (2010) Like a magnet: Catharsis beliefs attract angry people to violent video games. Psychological Science, 1. info:/10.1177/0956797610369494

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