Post List

  • December 1, 2010
  • 07:23 AM

A new angle on diving in whale sharks

by Alistair Dove in Deep Type Flow

Recently I featured a piece about how turtle hatchlings change their movement strategy several times in just the first few hours of life in order to suit their changing needs as they move across different types of sand.  Well, to go from the sublime to the ridiculous (or rather, just from the really small to the truly gargantuan) there’s a new paper out that shows that whale sharks, too, adjust the way they move according to their needs.  This new work follow........ Read more »

  • December 1, 2010
  • 05:40 AM

Which is worse: your partner having a heterosexual or homosexual affair?

by BPS Research Digest in BPS Research Digest

Assuming you're in a heterosexual relationship, which is worse: for your partner to be unfaithful with a person of the opposite or the same sex? According to a pair of US psychologists, the answer depends on whether you're a man or woman. Men, they've found, are less likely to continue a relationship with an unfaithful partner who's had a heterosexual affair, as opposed to a homosexual affair. For women, it's the other way around - they're more troubled by their male partner going off with anoth........ Read more »

  • December 1, 2010
  • 02:00 AM

New approaches to the Nazi concentration camps

by SAGE Insight in SAGE Insight

Special issue Before the holocaust: new approaches to the Nazi concentration camps, 1933-1939    From Journal of Contemporary History The Nazi concentration camps are a potent symbol for the destructive power of modern state. Some two million prisoners lost their lives, including around one million Jews murdered during the Holocaust, in Auschwitz, the largest and [...]... Read more »

  • December 1, 2010
  • 01:10 AM

Alan Turing’s Reaction-Diffusion Model – Simplification of the Complex

by Kele in Kele's Science Blog

The following post is what I wrote for the first 2-day essay in my developmental biology course. It covers the potential limitations of mathematical modeling in developmental biology – specfically, the reaction-diffusion systems of the computer scientist, Alan Turing. Perhaps the larger point I try to make is that ideas that are initially and blatantly [...]... Read more »

  • November 30, 2010
  • 09:17 PM

Bufotoxin Tolerance in Keelback Snakes: recent adaptation to a new threat, or preadaptation from an ancient foe?

by Allie Wilkinson in OH, FOR THE LOVE OF SCIENCE!

The cane toad (Bufo marinus) was introduced to Australia in what was another failed attempt at biological control.  The Bureau of Sugar Experiment Stations brought over the first cane toads from Hawaii in June of 1935 in an effort to control the cane beetle, which was destroying the sugar cane crops of northern Queensland.  About  100 [...]... Read more »

  • November 30, 2010
  • 09:16 PM

Psycasm - What Your Voice Says About You

by Rift in Psycasm

[Wherein our Hero discusses why you should be doing voice excercises as well as your morning push-ups]The study I’m running is finally about to get underway. We didn’t completely solve ‘true magnitude sexy’ problem, but we decided to add a few measures to try and explain it a little better.How’d we do that? Well, we’re kind of employing the same methodology to participant’s voice. Th; (read more)

Source: Rift - Discipline: Psychology... Read more »

Watkins, C., Fraccaro, P., Smith, F., Vukovic, J., Feinberg, D., DeBruine, L., & Jones, B. (2010) Taller men are less sensitive to cues of dominance in other men. Behavioral Ecology, 21(5), 943-947. DOI: 10.1093/beheco/arq091  

Feinberg, D., DeBruine, L., Jones, B., & Little, A. (2008) Correlated preferences for men's facial and vocal masculinity. Evolution and Human Behavior, 29(4), 233-241. DOI: 10.1016/j.evolhumbehav.2007.12.008  

Vukovic, J., Jones, B., DeBruine, L., Feinberg, D., Smith, F., Little, A., Welling, L., & Main, J. (2010) Women's own voice pitch predicts their preferences for masculinity in men's voices. Behavioral Ecology, 21(4), 767-772. DOI: 10.1093/beheco/arq051  

  • November 30, 2010
  • 07:42 PM

The Original Red Queen's Hypothesis

by Bob O'Hara in Deep Thoughts and Silliness

Leigh Van Valen (who died last month) is well known for being an original thinker. It is perhaps not surprising, then, that the only way he could publish his most famous idea was to start a journal to print it...... Read more »

Van Valen, L. (1973) A new evolutionary law. Evolutionary Theory, 1-30. info:/

  • November 30, 2010
  • 07:17 PM

Driver Mutations and Metastasis

by Daniel Koboldt in Massgenomics

Two recent papers used very different appraoches to shed light on the genetic alterations underlying tumor growth and progression in human cancers. Peter Campbell and colleagues from the Wellcome Trust Sanger Institute employed Illumina paired-end sequencing to survey the landscape of structural variation in metastatic pancreatic cancer. Ivana Bozic and colleagues from Harvard University took [...]... Read more »

Bozic I, Antal T, Ohtsuki H, Carter H, Kim D, Chen S, Karchin R, Kinzler KW, Vogelstein B, & Nowak MA. (2010) Accumulation of driver and passenger mutations during tumor progression. Proceedings of the National Academy of Sciences of the United States of America, 107(43), 18545-50. PMID: 20876136  

Campbell PJ, Yachida S, Mudie LJ, Stephens PJ, Pleasance ED, Stebbings LA, Morsberger LA, Latimer C, McLaren S, Lin ML.... (2010) The patterns and dynamics of genomic instability in metastatic pancreatic cancer. Nature, 467(7319), 1109-13. PMID: 20981101  

  • November 30, 2010
  • 06:33 PM

Using Cadaver Legs to Study ACL Injuries

by Brian Mossop in The Decision Tree

My latest post at Wired Playbook profiles Mark Drakos, an orthopedic surgeon who uses cadaver legs to test the biomechanics of ACL injuries: At times, Drakos seems like a typical orthopedist: seeing patients, prescribing meds, performing surgery. But in the lab, Drakos — always drawing on his previous athletic experience — turns orthopedic research into [...]... Read more »

Drakos MC, Hillstrom H, Voos JE, Miller AN, Kraszewski AP, Wickiewicz TL, Warren RF, Allen AA, & O'Brien SJ. (2010) The effect of the shoe-surface interface in the development of anterior cruciate ligament strain. Journal of biomechanical engineering, 132(1), 11003. PMID: 20524741  

  • November 30, 2010
  • 05:56 PM

A Lego Robot Uncovers Risk Behavior of Foraging Rats

by Michael Long in Phased

Robogator is a realistic mimic of a predator, enabling scientists to study fear of predation in rats, and possibly to study the effect of drugs designed to address human psychological disorders related to risk perception.... Read more »

  • November 30, 2010
  • 05:47 PM

Contagious Cooperation

by Shaheen Lakhan in Brain Blogger

Humans, and other animals, tend to cooperate with each other in a variety of social situations. Without working together toward a common goal, species as a whole would suffer and evolution may have been short-lived. In general, humans tend to be most cooperative and apt to help others when the costs are small to the [...]... Read more »

Dreber A, Rand DG, Fudenberg D, & Nowak MA. (2008) Winners don't punish. Nature, 452(7185), 348-51. PMID: 18354481  

Fowler, J. (2005) Altruistic punishment and the origin of cooperation. Proceedings of the National Academy of Sciences, 102(19), 7047-7049. DOI: 10.1073/pnas.0500938102  

Fowler, J., & Christakis, N. (2010) Cooperative behavior cascades in human social networks. Proceedings of the National Academy of Sciences, 107(12), 5334-5338. DOI: 10.1073/pnas.0913149107  

Rand DG, Dreber A, Ellingsen T, Fudenberg D, & Nowak MA. (2009) Positive interactions promote public cooperation. Science (New York, N.Y.), 325(5945), 1272-5. PMID: 19729661  

  • November 30, 2010
  • 04:59 PM

Kuru – Brain-eating, Nobel-winning and kiddy-fiddling

by thomastu in Disease Prone

As our lifetimes get longer and medical science’s diagnoses get more sophisticated, we end up finding new diseases (e.g cancer, Alzheimer’s, diabetes). More often than not, we are unable to treat them because they’re unlike anything we’ve ever encountered. For … Continue reading →... Read more »

  • November 30, 2010
  • 04:59 PM

Kuru – Brain-eating, Nobel-winning and kiddy-fiddling

by Thomas Tu in Disease of the week!

As our lifetimes get longer and medical science’s diagnoses get more sophisticated, we end up finding new diseases (e.g cancer, Alzheimer’s, diabetes). More often than not, we are unable to treat them because they’re unlike anything we’ve ever encountered. For … Continue reading →... Read more »

  • November 30, 2010
  • 04:49 PM

Evidence into practice: but wait, there’s more!

by Bronwyn Thompson in Healthskills: Skills for Healthy Living

I pondered a bit about writing this post today. Yesterday I discussed some of the challenges of transferring research into daily practice, and maybe I’ve done enough on the topic – then again, there are some issues that can take a long time to explore. One of them for me is how to integrate client-centred … Read more... Read more »

Lin SH, Murphy SL, & Robinson JC. (2010) Facilitating evidence-based practice: process, strategies, and resources. The American journal of occupational therapy. : official publication of the American Occupational Therapy Association, 64(1), 164-71. PMID: 20131576  

  • November 30, 2010
  • 02:22 PM

Voytek Journal of Cognitive Neuroscience paper: "Hemicraniectomy: A new model for human electrophysiology with high spatio-temporal resolution"

by Bradley Voytek in Oscillatory Thoughts

(Note: this is a repost of my original post from 2009 Dec. I'm reposting some old posts to work within the framework.)This paper grew out of an interesting collaboration with some physicians at the University of California, San Francisco and San Francisco General Hospital, initially through a meeting between Dr. Geoffrey Manley, Dr. Robert Knight, and I. Dr. Manley has recently published several papers on the clinical benefits of performing a decompressive hemicraniectomy on........ Read more »

Voytek B, Secundo L, Bidet-Caulet A, Scabini D, Stiver SI, Gean AD, Manley GT, & Knight RT. (2010) Hemicraniectomy: a new model for human electrophysiology with high spatio-temporal resolution. Journal of Cognitive Neuroscience, 22(11), 2491-2502. PMID: 19925193  

  • November 30, 2010
  • 02:15 PM

What you'll reveal to a computer

by Daniel Simons in The Invisible Gorilla

People are affected by reciprocity norms, even when they are interacting with a computer... Read more »

Moon, Y. (2000) Using Computers to Elicit Self-Disclosure from Consumers. The Journal of Consumer Research, 26(4), 232-339. info:/

  • November 30, 2010
  • 01:44 PM

Fresh Recruits at the Immunological Frontlines

by Sanford- Burnham in Beaker

The immune system is always standing by, ready to fight infection. Immune cells called lymphocytes and dendritic cells hang out in lymph nodes, surveying the environment for signs of invaders and attacking infected cells when necessary.
“It’s crucial that lymphocytes meet dendritic cells in the confined space of a lymph node – they’d have a hard [...]... Read more »

Bao X, Moseman EA, Saito H, Petryanik B, Thiriot A, Hatakeyama S, Ito Y, Kawashima H, Yamaguchi Y, Lowe JB.... (2010) Endothelial Heparan Sulfate Controls Chemokine Presentation in Recruitment of Lymphocytes and Dendritic Cells to Lymph Nodes . Immunity. info:/10.1016/j.immuni.2010.10.018

  • November 30, 2010
  • 01:26 PM

Exercise and Depression: It's Complicated

by Neuroskeptic in Neuroskeptic

Some ideas seem so nice, so inoffensive and so harmless, that it seems a shame to criticize them.Take the idea that exercise is a useful treatment for depression. It's got something for everyone.For doctors, it's attractive because it means they can recommend exercise - which is free, quick, and easy, at least for them - instead of spending the time and money on drugs or therapy. Governments like it for the same reason, and because it's another way of improving the nation's fitness. For people w........ Read more »

Harvey SB, Hotopf M, Overland S, & Mykletun A. (2010) Physical activity and common mental disorders. The British journal of psychiatry : the journal of mental science, 357-64. PMID: 21037212  

  • November 30, 2010
  • 01:00 PM

Using the immune system to fight cancer

by Kevin Bonham in Food Matters

Cancer sucks. I'm sure I don't have to tell you that - it's one of the leading causes of death in developed countries, and our treatment options are pretty thin. Basically, it amounts to cutting out the tumors that can be seen, and then giving a controlled administration of poison in the hopes that the cancer cells die before you do. Don't get me wrong - advances in oncology have saved many lives, but it's no surprise that there's a lot of research happening to find better options.

One promisin........ Read more »

  • November 30, 2010
  • 12:36 PM

Are You Glad Darvocet Got Pulled by the FDA? Are You Sure?

by Christian Sinclair, MD in Pallimed: a Hospice & Palliative Medicine Blog

I know many palliative care practitioners were cheering the news that the world's least effective opioid propoxyphene (Darvocet (w/ APAP) /Darvon)  (similar efficacy to acetaminophen) is being pulled off the market by the FDA.  Along with meperdine (Demerol) I am not sure if a medicine exists that produces as much disdain as propoxyphene amongst palliative care clinicians.

But let's look a little closer as to why this happened.  The FDA cites the increasing cardiotoxicity ........ Read more »

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