Post List

  • January 20, 2011
  • 06:01 PM
  • 1,935 views

What is a galaxy?

by sarah in One Small Step

Science tends to grow organically, branching out in new directions driven by new discoveries and new technology. But every once in a while, scientists feel the need to take stock of where their subject is going, and make some changes to keep things consistent. The most famous example of this is when the International Astronomical [...]

... Read more »

Duncan Forbes, & Pavel Kroupa. (2011) What is a Galaxy? Cast your vote here.. PASA. arXiv: 1101.3309v1

  • January 20, 2011
  • 05:36 PM
  • 1,493 views

Early life protein restriction alters dopamine circuitry

by neurobites in Neurobites

Gestational development represents a time in which the organism is at its peak vulnerability for developing lifelong changes. Consequently, an aberrant fetal environment can permanently shape the organization of the individual. We recognize things such as alcohol and other drugs, endocrine disrupting compounds such as bisphenol-A, and vitamin deficiency (to name a few) as possible [...]... Read more »

Vucetic Z, Totoki K, Schoch H, Whitaker KW, Hill-Smith T, Lucki I, & Reyes TM. (2010) Early life protein restriction alters dopamine circuitry. Neuroscience, 168(2), 359-70. PMID: 20394806  

  • January 20, 2011
  • 03:47 PM
  • 1,085 views

The rise and fall of great powers is stochastic

by Razib Khan in Gene Expression

Long time readers know well my fascination with quantitative history. In particular, cliometrics and cliodynamics. These are fields which attempt to measure and model human historical phenomena and processes. Cliometrics is a well established field, insofar as it is a subset of economic history. But cliodynamics is new on the scene. At the heart of cliodynamics [...]... Read more »

Gavrilets, Sergey, David G. Anderson, & Peter Turchin. (2011) Cycling in the Complexity of Early Societies. Cliodynamics: The Journal of Theoretical and Mathematical History. info:/

  • January 20, 2011
  • 03:23 PM
  • 1,226 views

Hand Gestures Grounded in Action

by APS Daily Observations in Daily Observations

Sometimes it’s impossible to explain something without using your hands. While these gestures may seem to be simple communicative aids, a recent study published in Psychological Science by Sian ... Read more »

Beilock, S.L., & Goldin-Meadow, S. (2010) Gesture changes thought by grounding it in action. Psychological Science, 21(11), 1605-10. PMID: 20889932  

  • January 20, 2011
  • 03:22 PM
  • 2,307 views

Finite formula found for partition numbers

by S.C. Kavassalis in The Language of Bad Physics

Credit: Emory and Ken Ono
So this isn’t physics*, but if you squint hard enough, you can probably make a connection.  The hot topic today is Ken Ono‘s latest work on the partition function:
Ken Ono, Amanda Folsom, & Zach Kent (2011). l-adic properties of the partition function American Institute of Mathematics.
Ken Ono & Jan Bruinier (2011). AN ALGEBRAIC FORMULA FOR THE PARTITION FUNCTION American Institute of Mathematics.
A EurekAlert press release appeared today, entitled........ Read more »

Ken Ono, Amanda Folsom, & Zach Kent. (2011) l-adic properties of the partition function. American Institute of Mathematics. info:/

Folsom A, & Ono K. (2008) The spt-function of Andrews. Proceedings of the National Academy of Sciences of the United States of America, 105(51), 20152-6. PMID: 19091951  

  • January 20, 2011
  • 11:47 AM
  • 2,186 views

[review] sex dimorphism in nuclear receptor signaling

by 96well in Reportergene

Men and women have different organs, including the liver. The reasons for this sex difference are not completely clear, but probably relies on some different metabolic needs occurring during the reproduction. This is particularly evident in lay-egg animals like fishes and birds: to make egg nutrients, the liver is stimulated by the estrogen hormone to increase lipid and protein production (vitellogenesis). In mammals also (and humans, ditto) hormones like estrogen, and other nutrients (i.e., die........ Read more »

Wagner, M., Zollner, G., & Trauner, M. (2011) Nuclear receptors in liver disease. Hepatology. DOI: 10.1002/hep.24148  

  • January 20, 2011
  • 11:16 AM
  • 1,001 views

The Off-Label Antipsychotic Surge

by Rob Mitchum in ScienceLife

If you watch enough football games, you might come away with the impression that today’s most profitable drugs are for erectile dysfunction, cholesterol, and allergies. But far less public attention is paid to one of the most expensive classes of drugs : the antipsychotics, drugs designed to treat certain mental disorders. From 1995 to 2006, [...]... Read more »

Alexander GC, Gallagher SA, Mascola A, Moloney RM, & Stafford RS. (2011) Increasing off-label use of antipsychotic medications in the United States, 1995-2008. Pharmacoepidemiology and drug safety. PMID: 21218418  

  • January 20, 2011
  • 11:00 AM
  • 690 views

Dobzhanksy on Posh Hybrids

by zacharoo in Lawn Chair Anthropology

Long-time readers may recall that one thing I wish I did active research on is hybridization: the crossing of divergent species or lineages, the developmental abnormalities arising from hybridization, and the potential role of hybridization in human evolution. One such developmental abnormality is "heterosis," a.k.a. 'hybrid vigor.' In general, heterosis refers to any trait in hybrids that is larger than the average of the two parents' (or the parents' species) values for that trait. The phenome........ Read more »

  • January 20, 2011
  • 10:29 AM
  • 1,452 views

Exceptional Eggs Preserve Tiny Dinosaurs

by Brian Switek in Dinosaur Tracking

Baby dinosaurs are hard to find. While the bones of large, adult dinosaurs were often sturdy enough to survive the processes involved in fossilization, the bones of young dinosaurs were small and delicate and have rarely made it into the fossil record. In many cases we just don’t know what baby dinosaurs looked like. Now [...]... Read more »

  • January 20, 2011
  • 10:06 AM
  • 765 views

Exercise First, Eat Later

by A. Goldstein in WiSci

They say that breakfast is the most important meal of the day. Yet, as counter-intuitive as it may seem, research suggests that you may want to wait to eat your banana and peanut butter toast until after a morning workout. One practical benefit of eating breakfast in the morning is to lessen feelings of hunger [...]... Read more »

Pereira MA, Erickson E, McKee P, Schrankler K, Raatz SK, Lytle LA, & Pellegrini AD. (2011) Breakfast frequency and quality may affect glycemia and appetite in adults and children. The Journal of nutrition, 141(1), 163-8. PMID: 21123469  

Berkey, C., Rockett, H., Gillman, M., Field, A., & Colditz, G. (2003) Longitudinal study of skipping breakfast and weight change in adolescents. International Journal of Obesity, 27(10), 1258-1266. DOI: 10.1038/sj.ijo.0802402  

Van Proeyen K, Szlufcik K, Nielens H, Pelgrim K, Deldicque L, Hesselink M, Van Veldhoven PP, & Hespel P. (2010) Training in the fasted state improves glucose tolerance during fat-rich diet. The Journal of physiology, 588(Pt 21), 4289-302. PMID: 20837645  

Van Proeyen K, Szlufcik K, Nielens H, Ramaekers M, & Hespel P. (2011) Beneficial metabolic adaptations due to endurance exercise training in the fasted state. Journal of applied physiology (Bethesda, Md. : 1985), 110(1), 236-45. PMID: 21051570  

Schabort EJ, Bosch AN, Weltan SM, & Noakes TD. (1999) The effect of a preexercise meal on time to fatigue during prolonged cycling exercise. Medicine and science in sports and exercise, 31(3), 464-71. PMID: 10188753  

  • January 20, 2011
  • 09:00 AM
  • 2,387 views

Can marine protected areas save the oceans? Under certain circumstances, maybe.

by WhySharksMatter in Southern Fried Science

Although marine fish face many threats, one of the greatest is large-scale modern commercial fishing. Technology makes it all too easy for so-called “factory ships” to remove enormous numbers of fish from the oceans, sometimes with devastating effects on the populations of those fish and their habitat. Marine conservationists have proposed a variety of [...]... Read more »

Christie MR, Tissot BN, Albins MA, Beets JP, Jia Y, Ortiz DM, Thompson SE, & Hixon MA. (2010) Larval connectivity in an effective network of marine protected areas. PloS one, 5(12). PMID: 21203576  

Lester, S., Halpern, B., Grorud-Colvert, K., Lubchenco, J., Ruttenberg, B., Gaines, S., Airamé, S., & Warner, R. (2009) Biological effects within no-take marine reserves: a global synthesis. Marine Ecology Progress Series, 33-46. DOI: 10.3354/meps08029  

  • January 20, 2011
  • 08:55 AM
  • 1,849 views

Milk allergy is the most common form of food allergy found in humans, but you don't have one and neither does your baby

by Greg Laden in Greg Laden's Blog

Well, maybe, but probably not. Even though milk allergies in infants and very young toddlers are the most common food allergy, they still occur in only about 2.5 percent of the population in the US and other Western groups. For this reason, I was rather perplexed some months back when I encountered a group of eight mothers randomly assembled, three of whom had infants with milk allergies. Two of the mothers had started to eliminate all dairy from their diets, including eggs, in order to reduc........ Read more »

Horst, A. (2002) Frequency of cow's milk allergy in childhood. Ann Allergy Asthma Immunol, 89(6 supplement 1), 33-37. info:/

  • January 20, 2011
  • 08:00 AM
  • 1,705 views

The risks of CAM: How much do we know?

by Scott in Science-Based Pharmacy

Working in pharmacies where supplements are sold alongside traditional (over-the-counter) medications, I’m regularly astonished at the different perceptions consumers can have about the relative efficacy and safety of different types of products. Once, speaking with a customer about a medical condition she wanted to treat, I indicated that there were no effective non-prescription therapies — [...]... Read more »

  • January 20, 2011
  • 07:45 AM
  • 2,056 views

The risks of CAM: How much do we know?

by Scott Gavura in Science-Based Medicine

Working in pharmacies where supplements are sold alongside traditional (over-the-counter) medications, I’m regularly astonished at the different perceptions consumers can have about the relative efficacy and safety of different types of products. Once, speaking with a customer about a medical condition she wanted to treat, I indicated that there were no effective non-prescription therapies — [...]... Read more »

  • January 20, 2011
  • 07:25 AM
  • 1,685 views

Measuring fields in the tiniest spots

by Joerg Heber in All That Matters

How do you measure a field like electrical or magnetic fields? The field itself is of course not visible. But you can see the effects of a field and use that for the visualization. For example, in case of magnetic fields a nice high school type of experiment is to use iron filings sprayed around a [...]... Read more »

Cang, H., Labno, A., Lu, C., Yin, X., Liu, M., Gladden, C., Liu, Y., & Zhang, X. (2011) Probing the electromagnetic field of a 15-nanometre hotspot by single molecule imaging. Nature, 469(7330), 385-388. DOI: 10.1038/nature09698  

  • January 20, 2011
  • 07:00 AM
  • 2,087 views

LG’s lucky break and rebooting your brand

by David Bradley in Sciencetext

LG is a strong brand. Life’s good, isn’t it? They build high-quality gadgets, mobile phones and white goods. LG is all slick websites and vast 3D TVs, viral and vital ads and green tech. Aren’t they? Well…they are today, but it doesn’t take a degree in ancient history to see that LG was once a [...]Post from: David Bradley's Sciencetext Tech TalkLG’s lucky break and rebooting your brand
... Read more »

  • January 20, 2011
  • 07:00 AM
  • 1,351 views

January 20, 2011

by Erin Campbell in HighMag Blog

Not all neurons are created equally…today’s image is from a paper describing a pathway that regulates the differentiation of specialized neurons in the fruit fly Drosophila.... Read more »

  • January 20, 2011
  • 06:45 AM
  • 1,748 views

How Michael Jackson's Heal The World really could help heal the world

by BPS Research Digest in BPS Research Digest





"Heal The WorldMake It A Better PlaceFor You And For MeAnd The Entire Human Race"So much research has looked at the effects of violent music lyrics and video-games on people's aggressiveness, but what about the effects of media with a positive message? Can songs like Michael Jackson's Heal the World and Bob Sinclair's Love Generation change people's behaviour for the better? Tobias Greitemeyer says this side of the media-behaviour equation has been neglected before now, but in a series of fi........ Read more »

  • January 20, 2011
  • 06:30 AM
  • 1,115 views

Medieval soldiers illuminate modern stunting

by Jeremy in Agricultural Biodiversity Weblog

A couple of sentences in one of The Economist’s celebrated Christmas articles brought me up short. The article detailed a forensic investigation of soldiers who fell in 1491 at Towton, “perhaps the bloodiest battle ever fought in England”. The good thing about Towton is that a mass grave yielded 40 skeletons, 28 of them complete, [...]... Read more »

  • January 20, 2011
  • 06:26 AM
  • 2,184 views

the amazing disappearing habitable world?

by Greg Fish in weird things

Gliese 581g, we hardly knew you. After a grand announcement, nearly immediate colonization plans from a leading sci-fi blog, and even a tale of supposed alien signals emanating from the newly discovered world, which was actually just an invention of the Daily Mail, rumors started surfacing that this planet wasn’t being detected in subsequent reviews [...]... Read more »

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