Post List

  • April 19, 2010
  • 10:00 AM

Is That A T. rex Up Your Nose? New Species of Nose-dwelling Leech Discovered

by GrrlScientist in Living the Scientific Life (Scientist, Interrupted)

tags: evolutionary biology, evolutionary biogeography, molecular biology, medicine, ectoparasite, orificial hirudiniasis, mucosal leech infestation, hirudinoids, leech, Tyrannobdella rex, public health, zoology, PLoS ONE, anatomy, phylogenetic analysis, taxonomy,,peer-reviewed research, journal club

Figure 1. Mucosally invasive hirudinoid leeches. Known from a wide variety of anatomical sites including eyes (A) as in this case involving Dinobdella ferox (B), mucosal leech sp........ Read more »

Phillips, A., Arauco-Brown, R., Oceguera-Figueroa, A., Gomez, G., Beltrán, M., Lai, Y., & Siddall, M. (2010) Tyrannobdella rex N. Gen. N. Sp. and the Evolutionary Origins of Mucosal Leech Infestations. PLoS ONE, 5(4). DOI: 10.1371/journal.pone.0010057  

  • April 19, 2010
  • 09:50 AM

When Clinical Trials Go Too Well

by Rob Mitchum in ScienceLife

Typically, when a clinical trial is stopped early, it’s bad news. The drug being tested may show unexpected side effects too harmful to continue, the trial may fall short of its patient recruitment goals, or the early results may reveal too marginal a benefit to make the study worth the cost and time. But good [...]... Read more »

  • April 19, 2010
  • 09:01 AM

Telling Lies: Email versus Pen and Paper

by Daniel Hawes in Ingenious Monkey | 20-two-5

Nice use of the dictator game in a series of studies, showing that emailing lies feels different from writing lies on pen and paper. ... Read more »

Naquin, C., Kurtzberg, T., & Belkin, L. (2010) The finer points of lying online: E-mail versus pen and paper. Journal of Applied Psychology, 95(2), 387-394. DOI: 10.1037/a0018627  

  • April 19, 2010
  • 08:05 AM

Neural Correlates of Being a Total Bad-Ass

by Neuroskeptic in Neuroskeptic

A new fMRI study in PLoS reports Differential Brain Activation to Angry Faces by Elite Warfighters, the elite warfighters being US Navy SEALs.SEALs are indeed pretty elite. This being a British blog, I wouldn't want to say that they're the world's elitest naval special forces unit. That's the British Special Boat Service. But they could still kill you ten times before you knew they were there (unless you're in the Special Boat Service.)Anyway, San Diego researchers Paulus et al scanned 11 SEALs........ Read more »

  • April 19, 2010
  • 08:00 AM

Leg Length and Osteoarthritis

by Shaheen Lakhan in Brain Blogger

At least 20 million people in the United States have osteoarthritis. This prevalent type of arthritis is most simply age-related wear-and-tear of joints. As people age, cartilage that protects the body’s joints breaks down, leading to joint pain and stiffness. Osteoarthritis normally appears after middle age and can cause significant disability if not treated. However, [...]... Read more »

Golightly, Y., Allen, K., Helmick, C., Renner, J., & Jordan, J. (2009) Symptoms of the knee and hip in individuals with and without limb length inequality. Osteoarthritis and Cartilage, 17(5), 596-600. DOI: 10.1016/j.joca.2008.11.005  

Golightly, Y., Allen, K., Renner, J., Helmick, C., Salazar, A., & Jordan, J. (2007) Relationship of limb length inequality with radiographic knee and hip osteoarthritis. Osteoarthritis and Cartilage, 15(7), 824-829. DOI: 10.1016/j.joca.2007.01.009  

  • April 19, 2010
  • 08:00 AM

Lemme see your war face!

by Zen Faulkes in NeuroDojo

People in the military are highly trained to perform at high levels under horrible situations. It’s a reasonable hypothesis to think that these individuals would have different cognitive performance and brain activity than civilians.

A new study by Paulus and colleagues tries to get inside the brains of some of these military personnel using the darling technique of the moment for humans, functional magnetic resonance imaging (fMRI).

The authors recruited veteran Navy SEALs, and compared th........ Read more »

  • April 19, 2010
  • 07:15 AM

Monday Pets: Why Do Dogs Push Their Food Bowls Around?

by Jason Goldman in The Thoughtful Animal

Dog owners have a way - sometimes within DAYS of first becoming dog owners - of becoming EXPERTS on animal behavior. It blows my mind. These are people who observe their animals displaying interesting or curious behaviors and make up things like "dogs like being put in tiny cages, actually, because of when their ancestors were pack animals and lived in caves."

Figure 1: Do they look happy to you? I didn't think so.

That said, a reader sent me an email inquiring about a particular behavior tha........ Read more »

  • April 19, 2010
  • 07:09 AM

Multivitamins & Breast Cancer - Is It Too Little Rather Than Too Much?

by Michael Ash in Nutri-Link Ltd - Clinical Education

Multivitamins have recently been flagged in a March 2010 American Journal of Clinical Nutrition article to raise the risk of developing breast cancer amongst a group of Swedish Women. Naturally this paper sounds both alarming and contradictory and merits deeper investigation. Particularly as it is directly opposed by a paper out just 3 month previously in the Public Health Nutrition Journal when a group of nearly 3,000 women with breast cancer were compared to a similar number of controls in rel........ Read more »

Meulepas JM, Newcomb PA, Burnett-Hartman AN, Hampton JM, & Trentham-Dietz A. (2009) Multivitamin supplement use and risk of invasive breast cancer. Public health nutrition, 1-6. PMID: 19954572  

Ishitani K, Lin J, Manson JE, Buring JE, & Zhang SM. (2008) A prospective study of multivitamin supplement use and risk of breast cancer. American journal of epidemiology, 167(10), 1197-206. PMID: 18344515  

  • April 19, 2010
  • 06:00 AM

Article review: Career in Academics

by Michelle Lin in Academic Life In Emergency Medicine

What should I do after finishing residency training? What, there's no more training?!Traditionally, graduates enter one of four traditional areas -- academia, community practice, industry, and the military. With the increased financial and research pressures of academic medicine, a study reviewed why physicians pursue a career in academia.Specifically, the authors conducted a literature search of the term "career academic medicine". Articles published during 1986-2006 were included. From the 480........ Read more »

Borges NJ, Navarro AM, Grover A, & Hoban JD. (2010) How, when, and why do physicians choose careers in academic medicine? A literature review. Academic medicine : journal of the Association of American Medical Colleges, 85(4), 680-6. PMID: 20354389  

  • April 19, 2010
  • 03:35 AM

The recent history of sustainable agriculture in Thailand deconstructed

by Jeremy in Agricultural Biodiversity Weblog

We are happy to publish this contribution from our reader Donald R. Strong of the Department of Evolution and Ecology, University of California, Davis.
Thailand is a cornucopia of agricultural biodiversity. Western visitors like me are astounded by the numbers of kinds, and sheer volume, of fruits and vegetables offered from the densely packed food carts [...]... Read more »

  • April 19, 2010
  • 02:27 AM

Facebook and Academic Performance

by Dr Shock in Dr Shock MD PhD

Today children are often described as follows
They live in social networks such as Facebook, MySpace, and Second Life gathering friends; they text more than they talk on the phone; and they Twitter the night away often sleeping with their cell phones vibrating by their sides.
A recent study challenges the believes that children have multitasking skills [...]

Related posts:Are Facebook Users Different?
The Dangers of Facebook or Let’s Be Careful Out There
The Dangers of Facebook
... Read more »

Paul A. Kirschner, & Aryn C. Karpinski. (2010) Facebook and Academic Performance. Computers in Human Behavior. info:/

  • April 18, 2010
  • 11:36 PM

Gambling on resource scarcity

by Paul Spraycar in Beyond Climate Change

A new study re-examines a famous bet, made in 1980, over whether natural resource scarcity would be reflected in increasing commodity prices over the ensuing decade. By expanding the time period of interest – to 1900-2008 rather than the 1980s only – the researchers find that commodity prices are in fact going up.Paul Ehrlich, a neo-Malthusian, was allowed to choose a basket of five commodities: chrome, copper, nickel, tin, and tungsten. His speculation was that economic growth would........ Read more »

  • April 18, 2010
  • 10:00 PM

Genetically-Modified Rice for Preventing Iron Deficiency

by Michael Long in Phased

Xin Lei (Cornell University, United States), Huixia Shou (Zhejiang University, China), and coworkers have worked on a practical approach for correcting iron deficiency in resource-limited nations. This news feature was written on April 18, 2010.... Read more »

Zheng, L., Cheng, Z., Ai, C., Jiang, X., Bei, X., Zheng, Y., Glahn, R. P., Welch, R. M., Miller, D. D., Lei, X. G.... (2010) Nicotianamine, a Novel Enhancer of Rice Iron Bioavailability to Humans. PLoS ONE, 5(4). DOI: 10.1371/journal.pone.0010190  

  • April 18, 2010
  • 09:58 PM

Outbreaks of H5N1 Bird Virus Infection in Wild Birds in time and space: Temperature matters (with cool video)

by Greg Laden in Greg Laden's Blog

It has long been thought that there are linkages between certain viruses and the weather. The flu season is winter (in whichever hemisphere it happens to be winter in) for reasons having to do with the seasons. One early theory posited that the practices of East Asian farmers, as they tended their animals, caused waterfowl and swine and humans to share space closely enough that nasty new influenzas would emerge and spread around the world. Although that explanation for the annual seasonal fl........ Read more »

  • April 18, 2010
  • 08:10 PM

Mentor Support: an unsung key predictor of weight loss and weight loss maintenance

by mc in begin to dig (b2d) There's one weight loss study that somehow has been in the public eye since 2003. Each time a version of its data gets published, it gets media attention for showing that LOTS of exercise helps maintain weight loss. Now from my reading of that data, that's actually kind of a misrepresentation of the findings in the paper. There are THREE factors that impact weight loss maintenance: caloric restriction (1200-1500kcals), 270-300mins of (vigorous) exercise a week AND ........ Read more »

  • April 18, 2010
  • 07:49 PM

Flu shots all around! But is it the best way?

by Colin Schultz in CMBR

Lying in bed, wrapped in a comforter, fists clenched. Your teeth are chattering, your body is sore, your head is pounding. You feel horrible, and yet a loved one is trying to do the most unthinkable thing – they want your blanket.
No, you can’t have it! I’m freezing! you say.
Come on, it’ll make you feel [...]... Read more »

  • April 18, 2010
  • 07:41 PM

"Smart" perceptual mechanisms

by Andrew Wilson in Notes from Two Scientific Psychologists

The polar planimeter is a device which directly measures area, and Runeson suggests it might serve as a model for the detection of the higher-order variables proposed by Gibson... Read more »

  • April 18, 2010
  • 05:35 PM

Why religion can lead to racism

by Tom Rees in Epiphenom

Religious people are more racist than average. That fact has been known for decades, and it's rather surprising given that mainstream religions are unanimous in preaching racial tolerance. Just why this should be is not well understood.Does religion really cause racism, or is it that are racists drawn to religion? Three recent studies have shed a little light on that question, with fascinating results.Do subconscious religious prompts increase racism?Can you make someone more racist simply by su........ Read more »

Megan K. Johnson, Wade C. Rowatt, & Jordan LaBouff. (2010) Priming Christian Religious Concepts Increases Racial Prejudice. Social Psychological and Personality Science, 1(2), 119-126. info:/10.1177/1948550609357246

  • April 18, 2010
  • 04:45 PM

Who will do well, who will not?

by Bronwyn Thompson in Healthskills: Skills for Healthy Living

If I had a crystal ball, and could decide who would do well in self managing their pain, and who would not, what would I do? A holy grail for insurance companies and health economists and yes, clinicians, is to find some precise way to decide who needs the most help with their pain, and [...]... Read more »

  • April 18, 2010
  • 02:51 PM

If You're Going to Taser a Sheep, at Least Do It Right!

by Isis the Scientist in On Becoming a Domestic and Laboratory Goddess...

On Friday I read with interest a post written by my dear SciBling DrugMonkey conducted by the folks at TASER International on the effects of the TASER on anesthetized, methamphetamine-intoxicated sheep. The TASER is a device used by law enforcement agents that uses an electrical shock to disrupt neuromuscular function and immobilize suspects.

Figure 1: The multi-shot TASER X3.According to Dr. Monkey, in this study (1), The study was conducted in Dorset sheep who were [isoflurane] anesthe........ Read more »

Cevik, C., Otahbachi, M., Miller, E., Bagdure, S., & Nugent, K. (2009) Acute stress cardiomyopathy and deaths associated with electronic weapons. International Journal of Cardiology, 132(3), 312-317. DOI: 10.1016/j.ijcard.2008.12.006  

Dawes, D., Ho, J., Cole, J., Reardon, R., Lundin, E., Terwey, K., Falvey, D., & Miner, J. (2010) Effect of an Electronic Control Device Exposure on a Methamphetamine-intoxicated Animal Model. Academic Emergency Medicine, 17(4), 436-443. DOI: 10.1111/j.1553-2712.2010.00708.x  

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