Post List

  • February 26, 2010
  • 09:17 PM

Friday Parasite: Sugar Fiend

by Diane Kelly in Science Made Cool

Corn smut imports sugar to hide from its plant host. ... Read more »

  • February 26, 2010
  • 08:48 PM

Some science for raw foodists

by Crystallinity in Chemical Crystallinity

I once lived with a woman who insisted that cooking food broke down the enzymes that we so desperately need from the food....This same roommate also insisted that water kept at room temperature was more "alkaline" than when it was cold.  (Though this website insists that the water must have a pH = 10 to have this effect, and that if you drink it, it will clean toxins from your body. She insisted temperature alone achieved this desired effect.) ...She was taking gene........ Read more »

  • February 26, 2010
  • 06:54 PM

More Femininity Equals Less Deviant Men

by Ultimo167 in Strong Silent Types

Nofziger (2010) has put forward the idea that the loss of self-control so often associated with deviant behaviour might not be a matter of sex differences but rather, differences in gender identity.... Read more »

  • February 26, 2010
  • 04:34 PM

Premenstrual syndrome: understanding origin and variation

by Kate Clancy in Laboratory for Evolutionary Endocrinology

This post explains variation in behavior through the menstrual cycle, hormonal variation, and problematizes the assumption that progesterone withdrawal explains premenstrual syndrome.... Read more »

Brinton RD, Thompson RF, Foy MR, Baudry M, Wang J, Finch CE, Morgan TE, Pike CJ, Mack WJ, Stanczyk FZ.... (2008) Progesterone receptors: form and function in brain. Frontiers in neuroendocrinology, 29(2), 313-39. PMID: 18374402  

Chapman, J., McIntyre, M., Lipson, S., & Ellison, P. (2009) Weight change and ovarian steroid profiles in young women. Fertility and Sterility, 91(3), 858-861. DOI: 10.1016/j.fertnstert.2007.12.081  

Ellison PT, Panter-Brick C, Lipson SF, & O'Rourke MT. (1993) The ecological context of human ovarian function. Human reproduction (Oxford, England), 8(12), 2248-58. PMID: 8150934  

Jasieńska G, & Ellison PT. (1998) Physical work causes suppression of ovarian function in women. Proceedings. Biological sciences / The Royal Society, 265(1408), 1847-51. PMID: 9802241  

Panter-Brick C, & Ellison PT. (1994) Seasonality of workloads and ovarian function in Nepali women. Annals of the New York Academy of Sciences, 234-5. PMID: 8154716  

Marván ML, Díaz-Erosa M, & Montesinos A. (1998) Premenstrual symptoms in Mexican women with different educational levels. The Journal of psychology, 132(5), 517-26. PMID: 9729845  

O'hara, M., & Swain, A. (1996) Rates and risk of postpartum depression—a meta-analysis. International Review of Psychiatry, 8(1), 37-54. DOI: 10.3109/09540269609037816  

  • February 26, 2010
  • 04:22 PM

Where They Got the Turquoise

by teofilo in Gambler's House

Probably no single material is more closely associated with Chaco than turquoise.  The vast amounts found in Room 33 at Pueblo Bonito alone suggest its importance, but it has been found in considerable quantities at many different sites, both small houses and great houses and both inside and outside of the canyon.  There is considerable [...]... Read more »

  • February 26, 2010
  • 03:22 PM

Am happy, will be selfish; Am sad, will be fair. Oh Really?!?

by sandygautam in The Mouse Trap

Image via Wikipedia

Many a times, researchers have their own personal agendas and its very human to fall in to the temptation to interpret study results or spin them to suit ones long term subject matter and expertise.  This is a trap in which Joe Forgas et al fall when they report in JESP that happy More >Rating: 0.0/10 (0 votes cast)

Related posts:Am happy, will seek novelty; am sad, will stick with familiar Image by Getty Images via Daylife I have earlier...
Entrepreneurial ro........ Read more »

  • February 26, 2010
  • 02:38 PM

Sunlight on the sea

by Sarah Stephen in An ecological oratorio

In this last week the Brazilian cities of Sao Paulo and Recife have experienced records levels of UV exposure. While a UV index of 6-7 is ¨high risk", and "very high risk" is 8-10, Sao Paulo was scorched with an index of 14. As the sun burns us it also beats down on the ocean surface and the algae that live there. What happens next is the subject of the CLAW hypothesis, which proposes a negative feedback loop, as follows.....Dimethylsulphide produced by phytoplankton is oxidised by bacteria to ........ Read more »

  • February 26, 2010
  • 12:17 PM

Workplace Interventions Increase Employee Physical Activity Levels

by Travis Saunders, MSc in Obesity Panacea

Although it is widely recommended that adults attain at least 30 minutes of moderate intensity physical activity on most days of the week, over half of Americans (51.9%) and Canadians (51.0%) fail to meet this minimum threshold. While physicians may also counsel their at-risk patients regarding physical activity, these patients seldom adopt the recommended behavior. Thus, while we currently know that physical activity is good for most people, we don’t have the vaguest idea how to get most ........ Read more »

DISHMAN, R., DEJOY, D., WILSON, M., & VANDENBERG, R. (2009) Move to ImproveA Randomized Workplace Trial to Increase Physical Activity. American Journal of Preventive Medicine, 36(2), 133-141. DOI: 10.1016/j.amepre.2008.09.038  

  • February 26, 2010
  • 09:55 AM

Musical Emotions: Chills Edition

by Princess Ojiaku in Science with Moxie

CHILLS.I'm one of the people who gets them when I listen to music I find really, really enjoyable. In fact, there are a whole range of emotions I can go through while listening to something I really like. Last Saturday night, I definitely was on the peak end of experiencing intense music-related emotions while watching my bandmate and favorite drummer, Jessica Caesar play during this song at The Dirty Little Heaters' CD release show. Take a look:So what is this whole "chills" thing about anyway?........ Read more »

  • February 26, 2010
  • 09:26 AM

Can birds affect tree growth?

by Katie Kline in EcoTone

Growing conditions, such as water and nutrient supply, are the major determinates of tree growth, but insectivorous birds can also play an important role, say scientists in a study published in the January issue of Ecology. Under the right conditions, birds contribute to whole tree growth by preying on herbaceous arthropods, such as leafhoppers, caterpillars and grasshoppers.... Read more »

  • February 26, 2010
  • 09:08 AM

The ant smelloscope

by Zen Faulkes in NeuroDojo

Blast it, I hate it when the authors of a research article come up perhaps the best possible title.

“Do desert ants smell the scenery in stereo?”

I can’t top that title. All I can do is try to explain a little.

Cataglyphis fortis is a name that is not well-known to many, but to an ethologist like myself, they're kind of famous. This is a desert ant species that has taught us a phenomenal amount about how animals navigate in their environment. These ants, with their small brains, are doi........ Read more »

  • February 26, 2010
  • 06:44 AM

Video-game exercise bikes - not just a gimmick

by BPS Research Digest in BPS Research Digest

Exercise is going techno. People are playing Wii fit sports games in their homes and gyms are full of ever more interactive exercise machines. But is this trend anything more than gimmickry? Yes, according to a new study by Ryan Rhodes at the Behavioural Medicine Lab at the University of Victoria, and his colleagues.Rhodes' team had 29 previously inactive young men embark on an exercise regime, involving three half-hour cycling sessions a week for six weeks. Crucially, half the men trained on Ga........ Read more »

  • February 26, 2010
  • 06:33 AM

Personalized Annoyance of Research Enthusiast (PARE)

by Keith Robison in Omics! Omics!

Last night I finally got my paws on a paper which started out on a frustrating tack. Last week, a flurry of news items heralded a new approach from Vogelstein's group at Johns Hopkins that involved second generation sequencing of patient tumor samples. But, the early reports claimed it had been published in Science Translational Medicine, whereas it most certainly wasn't there except a suggestive teaser about the next week's issue. I thought perhaps someone had really blown it and ignored an ........ Read more »

Leary, R., Kinde, I., Diehl, F., Schmidt, K., Clouser, C., Duncan, C., Antipova, A., Lee, C., McKernan, K., De La Vega, F.... (2010) Development of Personalized Tumor Biomarkers Using Massively Parallel Sequencing. Science Translational Medicine, 2(20), 20-20. DOI: 10.1126/scitranslmed.3000702  

  • February 26, 2010
  • 06:02 AM

Why Johnny can’t read (but Jane can)

by Kevin Mitchell in Wiring the Brain

Reading is not a skill that comes naturally.  Unlike learning spoken language, which the human brain has evolved to absorb almost effortlessly, learning to read is a protracted and difficult process.  It involves the categorical association of arbitrary visual symbols with phonemes and also the ability to break words down into component phonemes.  It thus relies on an integration between visual and auditory processes, combining spatial and temporal information, within a learned linguistic c........ Read more »

  • February 26, 2010
  • 05:47 AM

Did Artist Käthe Kollwitz Have Alice in Wonderland Syndrome?

by The Neurocritic in The Neurocritic

"Rare migraineurs have strange symptoms where the diagnosis may be lurking just down a rabbit hole" (Evans & Rolak, 2004).Alice in Wonderland syndrome is an unusual perceptual phenomenon most often caused by migraine headaches, but also seen in association with epilepsy and Epstein-Barr virus. The most well-known symptoms are: Alteration of body image: the sizes of parts of the body are perceived incorrectly. Alteration of visual perception: the size........ Read more »

  • February 26, 2010
  • 05:11 AM

Certain death: Not risky. Uncertain death: risky.

by Jan Husdal in

If you know for sure that things will go wrong, there really is no risk. If you don’t know for sure that things will go wrong, then there is a risk. That’s the basic assumption in a paper I just read. It may sound like a bold statement, but technically speaking, it is a true [ ... ]... Read more »

  • February 26, 2010
  • 05:00 AM

Popular herbicide can be a secret killer of fish

by Rob Goldstein in Conservation Maven

The chemical glyphosphate has emerged as the most widely used herbicide in the world. As a new study suggests, the popular herbicide may have unexpected negative impacts on fish by making them more vulnerable to disease...... Read more »

  • February 26, 2010
  • 01:43 AM

Demerol is Not Bad, It Treats Shivering.

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

Image via WikipediaIf you have spent anytime with a palliative care team in a hospital you will know of their efforts to essentially blacklist Demerol (meperidine) from use in the hospital.  Some hospitals have removed it or restricted it from the formulary all together.  In medical culture, demerol has been a go to opioid peri-OR and mostly favored by surgeons.  The drug has been purported to be less likely to cause billiary spasm, but this seems to be impacted more by cultural i........ Read more »

  • February 26, 2010
  • 12:22 AM

Friday Weird Science: Doing your Kegels to Improve your Orgasms

by Evil Monkey in Neurotopia

Many of you may have heard from your doctor that doing Kegels is a good thing. It's certainly good for keeping your pelvic floor strong, to prevent problems like uterine prolapse following birth. It's also very good for keeping your bladder good and functional later in life. So do your Kegels, ladies.

However, Sci has always heard through the grapevine that Kegels were also good for...other things.

Well, are they?

Lowenstein et al. "Can stronger pelvic muscle floor improve sexual function........ Read more »

Lowenstein, L., Gruenwald, I., Gartman, I., & Vardi, Y. (2010) Can stronger pelvic muscle floor improve sexual function?. International Urogynecology Journal. DOI: 10.1007/s00192-009-1077-5  

  • February 25, 2010
  • 11:41 PM

Nucleotide diversity - what two new African genomes mean

by David in The Atavism

If you wanted evidence that we live in a post-genomic age you would need to look no further than the headlines in the science section of the newspaper last week. A man dubbed Inuk who lived and died in Greenland 4 000 years ago had dry earwax and might have gone bald if he lived long enough, Tutankhamun was inbred and had a cleft palate and Desmond Tutu has had his whole genome sequenced. What about the science behind the hook? Ed Yong has the the story of Inuk (whose genes tell us about migrat........ Read more »

Schuster SC, Miller W, Ratan A, Tomsho LP, Giardine B, Kasson LR, Harris RS, Petersen DC, Zhao F, Qi J.... (2010) Complete Khoisan and Bantu genomes from southern Africa. Nature, 463(7283), 943-7. PMID: 20164927  

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