Post List

  • February 9, 2010
  • 03:15 PM

Study reveals importance of adhering to the drug regimen for AIDS patients

by Dave in The Daily Monthly

Yesterday I mentioned that a key aspect of fighting AIDS is staying on the drug regimen. Charles pointed out that this is more difficult than it might seem: the drugs are constant reminder of your condition, and taking them can revive horrible memories.
But how important is it to maintain adherence to the regimen? A 2008 [...]... Read more »

  • February 9, 2010
  • 03:04 PM

I’ll never be like you: Daughter cells send toxic aggregates back to mom

by ouroboros in Ouroboros: Research in the biology of aging

Cells tend to produce unwanted protein aggregates and other molecular refuse slightly faster than they can get rid of it, resulting in a time-dependent accumulation of potentially toxic cellular garbage. This, in turn, can cause an age-dependent loss of cellular viability, which is (in certain contexts) a fair operational definition of aging.
How can cells deal [...]... Read more »

  • February 9, 2010
  • 02:40 PM

Mobile Phones' Impact on Health

by amiya in Physiology physics woven fine

Mobile phones have drastically transformed our lives. Also known as cellular phones or cell phones, these gadgets not only incorporate a phone, as the name suggests, but also a lot of other technologically advanced features. They include a camera, a sound recorder cum music system, a Bluetooth device and many more depending on the model and the maker of the phone. They are called mobile phones since they can be used while on the move.A mobile phone maintains a two way (transmit and receive) comm........ Read more »

Gary W. Arendash, Juan Sanchez-Ramos, Takashi Mori, Malgorzata Mamcar, Xiaoyang Lin, Melissa Runfeldt, Li Wang, Guixin Zhang, Vasyl Sava, Jun Tan.... (2010) Electromagnetic Field Treatment Protects Against and Reverses Cognitive Impairment in Alzheimer's Disease Mice . Journal of Alzheimer's Disease, 191-210. info:/

  • February 9, 2010
  • 02:35 PM

Basing International CO2 reduction figures on Cumulative CO2

by apeescape in achikule!

There is considerable deliberations on the international policy agreements on each countries’ magnitude of CO2 reductions to avert catastrophic consequences due to climate change. The main indicator for the allocations are based on the percentage reductions in emission rates relative to 1990. This has had a tendency to split international negotiations into developed and developing countries. The difficulty is due to four main factors with respect to each country: population levels, wealth,........ Read more »

  • February 9, 2010
  • 01:46 PM

Balance, control & passion

by Bronwyn Thompson in Healthskills: Skills for Healthy Living

Yesterday a couple of colleagues were talking about balance in life, and making it plain that they think people who spend a lot of time and energy on their work are sad.  Their opinion? Work is the means to pay for your ‘real’ life, to spend more on working means less on what is really [...]... Read more »

  • February 9, 2010
  • 01:31 PM

Is Path Integration Innate?

by Jason Goldman in The Thoughtful Animal

Welcome to the third part (of 4) of the current series on navigation. For a review, you can go read about path integration in the desert ant, and also read about navigation in the gerbil.
The question for today is: is path integration innate, or is it learned (even if only minimal experience is required)?
Let us [...]... Read more »

U. von Saint Paul. (1982) Do Geese Use Path Integration for Walking Home?. F. Papi , 296-307. info:/

  • February 9, 2010
  • 11:00 AM

Giving When God Is Watching

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

Altruistic behavior is one of the great unsolved problems of social science research. What I find particularly fascinating is the huge effect that very subtle cues can exhibit on people's giving behavior...or not so subtle cues, like when you're made to feel God might be watching you...... Read more »

  • February 9, 2010
  • 07:00 AM

“I Feel Your Pain” – The Neural Basis of Empathy

by Shaheen Lakhan in Brain Blogger

Last month, a terrible earthquake raised havoc in Port-au-Prince, Haiti. While the Haitians in Port-au-Prince are miles away from us, witnessing media images of their physical and emotional suffering moves us tremendously, and motivates many of us to respond to their distress with monetary and other donations. In a sense, this is an amazing human [...]... Read more »

  • February 9, 2010
  • 07:00 AM

Differences between CAM practice and primary care practice

by Orac in Respectful Insolence

If there is one aspect of "complementary and alternative" medicine (CAM) that can puzzle advocates of science-based medicine, it's why, given how nonsensical much of it is given that some of it actually goes against the laws of physics (think homeopathy or distance healing), CAM is so popular. Obviously one reason is that there are conditions for which SBM does not have any "magic bullet" treatments. Diabetes, heart disease, other chronic illnesses, SBM can manage them quite well, but it can't c........ Read more »

Heiligers, P., de Groot, J., Koster, D., & van Dulmen, S. (2010) Diagnoses and visit length in complementary and mainstream medicine. BMC Complementary and Alternative Medicine, 10(1), 3. DOI: 10.1186/1472-6882-10-3  

  • February 9, 2010
  • 06:59 AM

Conserving the jaguar: a continent-wide assessment of habitat corridors

by Rob Goldstein in Conservation Maven

In order to protect the relative genetic health of jaguar populations and to establish priorities for habitat conservation, researchers use an innovative model to map potential corridors between 90 remaining areas of high jaguar density throughout Central and South America...... Read more »

  • February 9, 2010
  • 06:50 AM

How many words for Red?

by Sean Roberts in The Adventures of Auck

The distribution of colour terms on Wikipedia correlates with the human Just Noticable Difference Curve.... Read more »

Long F, Yang Z, & Purves D. (2006) Spectral statistics in natural scenes predict hue, saturation, and brightness. Proceedings of the National Academy of Sciences of the United States of America, 103(15), 6013-8. PMID: 16595630  

  • February 9, 2010
  • 06:29 AM

Uncovering the Genetic Controls of Cellular Aging

by Rick Scavetta in DNA Dude

A fascinating thing about DNA replication is that the actual process lacks the ability to replicate the very ends of chromosomes. That means chromosomes should get shorter with every round of cell division (DNA replication), but they remain more or less the same length, getting gradually shorter with aging. The natural shortening of chromosomes is [...]... Read more »

Codd, V., Mangino, M., van der Harst, P., Braund, P., Kaiser, M., Beveridge, A., Rafelt, S., Moore, J., Nelson, C., Soranzo, N.... (2010) Common variants near TERC are associated with mean telomere length. Nature Genetics. DOI: 10.1038/ng.532  

  • February 9, 2010
  • 05:56 AM

ToE Expansion pack: Foraminifera!

by Psi Wavefunction in Skeptic Wonder

After getting over my little moment of rage there, I decided to go ahead and redo the forams while I could still vaguely remember the phylogeny, sort of. So here comes the Tree of Eukaryotes Expansion Pack: Forams!I hope somebody is happy now, after nagging me about the freaking forams for the past two weeks! I know they deserve more space, and I did them an awful injustice by shrinking the entire group to just 'Forams'. Since I still haven't figured out the space problem (should I just shrink e........ Read more »

  • February 9, 2010
  • 05:37 AM

Intrusive images and intrusive verbal thoughts are different phenomena

by BPS Research Digest in BPS Research Digest

The vivid, intrusive visual images that are a hallmark of post-traumatic disorder (PTSD) are based on a separate memory system from intrusive verbal thoughts. That's according to a new study that claims to provide empirical support for psychologist Chris Brewin's dual-representation theory of PTSD.Brewin's theory posits two memory systems, one that's largely sensation-based, inflexible and automatically accessed and another that's more deliberately accessible, containing material that is context........ Read more »

  • February 9, 2010
  • 05:20 AM

Evolutionary origins of religion: weak relation to morality

by Björn Brembs in

It is a long-standing argument among religious believers that religiosity were necessary for morality. In a recent Trends in Cognitive Sciences article (requires subscription), Pyysiäinen and Hauser argue that morality can arise and indeed can be found without and before any religious education and thus religion is a by-product of pre-existing cognitive properties of the brain. Indeed, religion is not ubiquitous, as for instance the Hadza's religion has been described as 'minimal', and yet, coo........ Read more »

Ilkka Pyysiäinen, & Marc Hauser. (2010) The origins of religion: evolved adaptation or by-product?. Trends in Cognitive Sciences. info:/10.1016/j.tics.2009.12.007

  • February 9, 2010
  • 02:08 AM

Optimal Target for Deep Brain Stimulation for Depression

by Dr Shock in Dr Shock MD PhD

The strongest evidence exists for Broadman Area 25 in the subcallosal cingulate gyrus (SCG) as target for deep brain stimulation in treatment resistant depression. This area in the brain is depicted in the figure above and is from the most important publication about DBS and depression in Neuron march 2005 by Helen Mayberg. Functional neuroimaging [...]

Related posts:Deep Brain Stimulation for Treatment Resistant depression New data are being published about deep brain stimulation...
New Kin........ Read more »

  • February 8, 2010
  • 11:11 PM

Cryptic Life in the Antarctic Dry Valleys

by Merry Youle in Small Things Considered

On first inspection the habitat seems as sterile as the surface of autoclaved glassware... but the trained eye, aided by a microscope, sees otherwise.
E.O. Wilson, The Future of Life

For the microbiologist, the next best thing to a trip to Mars might well be an expedition to the McMurdo Dry Valleys of Antarctica. Here, in the Earth's coldest and driest deserts, the conditions approach those on our neighboring planet and are thought to also approach the cold-arid limit for life.... Read more »

Pointing SB, Chan Y, Lacap DC, Lau MC, Jurgens JA, & Farrell RL. (2009) Highly specialized microbial diversity in hyper-arid polar desert. Proceedings of the National Academy of Sciences of the United States of America, 106(47), 19964-9. PMID: 19850879  

  • February 8, 2010
  • 07:48 PM

Pediatric Perplexity #001

by sandnsurf in Life in the Fast Lane

A 7 year-old girl was brought to hospital with lethargy, irritability and vomiting. A week previously she developed chicken pox, and was treated with regular aspirin and paracetamol for fever and discomfort.... Read more »

Glasgow JF, & Middleton B. (2001) Reye syndrome--insights on causation and prognosis. Archives of disease in childhood, 85(5), 351-3. PMID: 11668090  

  • February 8, 2010
  • 06:02 PM

Be religious and be free (or at least, let off with a lighter sentence)

by Tom Rees in Epiphenom

Cherie Booth was in the news this week for giving a suspended prison sentence to a man who broke another guy's jaw in an assault, apparently on the grounds that he was religious. Here's the offending quote: “I am going to suspend this sentence for the period of two years based on the fact you are a religious person and have not been in trouble before," she told him at Inner London Crown Court. "You caused a mild fracture to the jaw of a member of the public standing in a queue at L........ Read more »

Heaton, P. (2006) Does Religion Really Reduce Crime?*. The Journal of Law and Economics, 49(1), 147-172. DOI: 10.1086/501087  

  • February 8, 2010
  • 05:41 PM

Can Botox affect how you see the world?

by Christie Wilcox in Observations of a Nerd

Think of something wonderful - something someone said to you that made your day, or the happiest moment you can remember. Go ahead, take a moment. Now, what are you doing? Odds are, you're smiling.

It takes 12 different muscles in our faces to produce the easily-recognized expression. But smiling is far from a tough feat for our facial muscles. Smiles are so hard-wired into the human condition that babies have been known to smile before birth. Smiling is as instinctual to us as breathing.

Why ........ Read more »

Price, T., Hurst, G., & Wedell, N. (2010) Polyandry Prevents Extinction. Current Biology. DOI: 10.1016/j.cub.2010.01.050  

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