Post List

  • September 21, 2010
  • 12:58 PM

Towards Practical Determination of Bloodstain Age

by Michael Long in Phased

Erin Hanson and Jack Ballantyne (National Center for Forensic Science and University of Central Florida, United States) have determined the age of bloodstains via hemoglobin oxidation chemistry and cheap, portable instrumentation. This news feature was written on September 21, 2010.... Read more »

  • September 21, 2010
  • 12:45 PM

Chemistry of the Great Big Blue: Sedimentation

by Bluegrass Blue Crab in Southern Fried Science

Sedimentation in the Chesapeake - look at the brown toward the headwaters. Found at
Rocks erode, travel down rivers and eventually in the form of small particles, settle in river deltas and estuaries. Even smaller pieces can be carried hundreds of miles into the ocean. It’s all part of the natural process of sedimentation, but [...]... Read more »

Short, F., & Wyllie-Echeverria, S. (2009) Natural and human-induced disturbance of seagrasses. Environmental Conservation, 23(01), 17. DOI: 10.1017/S0376892900038212  

Toshihiro Onitsukaa, Tomohiko Kawamura, Satoshi Ohashic, Shunsuke Iwanaga, Toyomitsu Horiia and Yoshiro Watanabe. (2008) Effects of sediments on larval settlement of abalone Haliotis diversicolor. JEMBE, 365(1). info:/doi:10.1016/j.jembe.2008.07.042

Houjie Wang, Zuosheng Yang, Yoshiki Saitoc, J. Paul Liud, Xiaoxia Suna, and Yan Wanga. (2007) Stepwise decreases of the Huanghe (Yellow River) sediment load (1950–2005): Impacts of climate change and human activities . Global and Planetary Change, 57(3-4). info:/doi:10.1016/j.gloplacha.2007.01.003

  • September 21, 2010
  • 12:17 PM

Finding the Stem Cell User’s Manual

by Rob Mitchum in ScienceLife

In recent weeks, stem cell research has once again been drawn into a battle over political, ethical, and legal questions. Given all the controversy, it’s easy to forget that there are still many scientific questions surrounding stem cells and their potential for medical use. The ability of such cells to grow into different types of [...]... Read more »

Luo, J., Tang, M., Huang, J., He, B., Gao, J., Chen, L., Zuo, G., Zhang, W., Luo, Q., Shi, Q.... (2010) TGF /BMP Type I Receptors ALK1 and ALK2 Are Essential for BMP9-induced Osteogenic Signaling in Mesenchymal Stem Cells. Journal of Biological Chemistry, 285(38), 29588-29598. DOI: 10.1074/jbc.m110.130518  

  • September 21, 2010
  • 12:07 PM

How To Possibly Detect Graviton Mass With Gravity Waves/Pulsars.

by Joseph Smidt in The Eternal Universe

Gravitons are the particles that mediate the force of gravity in the analogous way that photons are responsible for the electro-magnetic field.  And like photons, gravitons are thought to be massless.  In fact, assuming general relativity is correct, the mass of the graviton has an upper bound of 7x10-32 eV which is really small. (See bold text at bottom.)  However, for alternative gravity

... Read more »

Kejia Lee, Fredrick A. Jenet, Richard H. Price, Norbert Wex, & Michael Kramer. (2010) Detecting massive gravitons using pulsar timing arrays. Accepted by ApJ. arXiv: 1008.2561v2

  • September 21, 2010
  • 10:14 AM

Memory, Social Structure and Language: Why Siestas affect Morphological Complexity

by Sean Roberts in A Replicated Typo 2.0

Why are children better than adults at learning second languages? Hypotheses suggest that it's easier to learn some parts of language with procedural memory, which atrophies in adults. But why has language evolved to be like this? I suggest that the answer lies in social structure and explain why taking siesta can affect the morphological complexity of your language.... Read more »

L. Kirk Hagen. (2008) The bilingual brain: Human evolution and second language acquisition. Evolutionary Psychology, 43-63. info:/

Christiansen, M., & Chater, N. (2008) Language as shaped by the brain. Behavioral and Brain Sciences, 31(05). DOI: 10.1017/S0140525X08004998  

Hartshorne JK, & Ullman MT. (2006) Why girls say 'holded' more than boys. Developmental science, 9(1), 21-32. PMID: 16445392  

BACKHAUS, J., & JUNGHANNS, K. (2006) Daytime naps improve procedural motor memory. Sleep Medicine, 7(6), 508-512. DOI: 10.1016/j.sleep.2006.04.002  

  • September 21, 2010
  • 10:06 AM

Seamount mythbusting

by Uncharted Atolls in Uncharted Atolls

Seamounts—mountains beneath the waves—may not be conventionally thought of as large habitats on the global ecological stage, compared to say, forests or estuaries.  But there’s quite a bit of them to say the least, perhaps in the hundreds of thousands. … Continue reading →... Read more »

Etnoyer PJ, Wood J, Shirley TC. (2010) How large is the seamount biome?. Oceanography, 23(1), 206-209. info:/

Rowden, A., Dower, J., Schlacher, T., Consalvey, M., & Clark, M. (2010) Paradigms in seamount ecology: fact, fiction and future. Marine Ecology, 226-241. DOI: 10.1111/j.1439-0485.2010.00400.x  

  • September 21, 2010
  • 09:34 AM

Kate Pickett on the nation’s health – why can’t we close the gap between rich and poor?

by Cancer Research UK in Cancer Research UK - Science Update

Professor Kate Pickett is a Cancer Research UK-funded health researcher, and co-author of  The Spirit Level. In this guest blog post, she discusses the latest research and insights into the causes of inequalities in health, and gives us her opinions on what government should do to tackle them… Britain has a long and distinguished record [...]... Read more »

  • September 21, 2010
  • 09:33 AM

Synthetic probes of natural oscillations

by Becky in It Takes 30

One of the motivations for systems biology is the gathering realization that biological systems are not simply composed of on/off switches.  Instead of thinking of signal transduction as a simple relay race — A passes the information to B, who passes it to C — we need to understand the information processing in multiple layers [...]... Read more »

Toettcher JE, Mock C, Batchelor E, Loewer A, & Lahav G. (2010) A synthetic-natural hybrid oscillator in human cells. Proceedings of the National Academy of Sciences of the United States of America. PMID: 20837528  

  • September 21, 2010
  • 08:00 AM

Why does asbestos cause lung cancer?

by David Bradley in SciScoop Science Forum

When we had some building working work done many years ago, there was a minor scare when one of the builders thought that a panel might be asbestos, thankfully turned out to be some reconstituted wood chip product. But, if it had been asbestos it would have meant us evacuating our home, the recruitment of [...]... Read more »

Liu, G., Beri, R., Mueller, A., & Kamp, D. (2010) Molecular mechanisms of asbestos-induced lung epithelial cell apoptosis. Chemico-Biological Interactions, 188(2), 309-318. DOI: 10.1016/j.cbi.2010.03.047  

  • September 21, 2010
  • 06:40 AM

Applied Chaos

by David Winter in Careers - in Theory

Dr Jim Bright explains how he uses the Chaos Theory of Careers in his work with clients.... Read more »

Bright, J.E.H, Pryor, R.G.L, Chan, E.W.M., & Rijanto, J. (2009) Chance events in career development: Influence, control and multiplicity. Journal of Vocational Behavior, 75(1), 14-25. info:/10.1016/j.jvb.2009.02.007

  • September 21, 2010
  • 05:28 AM

Male Genital Mutilation: Beyond the tolerable?

by SAGE Insight in SAGE Insight

From Ethnicities This article aims to show that, if Female Genital Mutilation (FGM) warrants the serious attention of policy-makers, then so too, despite quantitative differences, does Male Genital Mutilation (MGM). FGM is viewed by many as marking the boundary of toleration. Regarded as a painful, injurious, medically unnecessary tool of sexual control, inflicted by coercive [...]... Read more »

  • September 21, 2010
  • 05:00 AM

Myth Busted: Alzheimer Dementia NOT Caused By Diabetes

by Steve Parker, M.D. in Diabetic Mediterranean Diet Blog

Contrary to popular belief among the experts, type 2 diabetes is not one of the causes of Alzeimer dementia.  They may indeed be associated with each other, but that’s not causation.  An oft-repeated theory from Gary Taubes 2007 masterpiece, Good Calories, Bad Calories, is that many of the chronic diseases of modern civilization, including Alzheimer disease, are caused [...]... Read more »

Matsuzaki T, Sasaki K, Tanizaki Y, Hata J, Fujimi K, Matsui Y, Sekita A, Suzuki SO, Kanba S, Kiyohara Y.... (2010) Insulin resistance is associated with the pathology of Alzheimer disease: the Hisayama study. Neurology, 75(9), 764-70. PMID: 20739649  

  • September 21, 2010
  • 02:28 AM

Autumn and Seasonal Affective Disorder and Acute Coronary Syndrome

by Dr Shock in Dr Shock MD PhD

It’s this time of the year again, autumn. The time for great wines and game and truffle and ….. Also time for some of us to sit behind your lamps every morning for half an hour for two weeks on stretch against seasonal affective disorder.
Depressive disorder is not the only disease influenced by seasonality. In [...]

Related posts:Winter Depression Or Seasonal Affective Disorder
What is Seasonal Affective Disorder?
8 articles about Seasonal Affective Disorder
... Read more »

Li, Y., Du, T., Lewin, M., Wang, H., Ji, X., Zhang, Y., Xu, T., Xu, L., & Wu, J. (2010) The seasonality of acute coronary syndrome and its relations with climatic parameters. The American Journal of Emergency Medicine. DOI: 10.1016/j.ajem.2010.02.027  

  • September 20, 2010
  • 11:00 PM

Mastering Mania: The Link Between Creativity and Mental Illness in the Brain

by Brian Mossop in The Decision Tree

A New York Times story grabbed my attention today, “Just Manic Enough: Seeking Perfect Entrepreneurs”. Telling the story of 21-year-old Seth Priebatsch – a guy who successfully secured a $750,000 investment from venture capitalists for what some may argue is just a crazy idea – the article showed how this certain young entrepreneur seemed to tread a very fine line between being a workaholic, self-confident entrepreneur, and full-blown clinical manic.

With hypomania, pe........ Read more »

  • September 20, 2010
  • 10:30 PM

Our Impacts on the Deep

by Dr. M in Deep Sea News

I could write about a detailed account of a new study in PLoS One.  I could discuss how the researchers imported information on the spatial extent of marine scientific research, submarine communication cables, radioactive waste disposal, munitions and chemical weapons waste disposal, military operations, oil and gas industry, and bottom trawling OSPAR maritime area of the . . . → Read More: Our Impacts on the Deep... Read more »

  • September 20, 2010
  • 10:30 PM

Our Impacts on the Deep

by Miriam Goldstein in The Oyster's Garter

I could write about a detailed account of a new study in PLoS One.  I could discuss how the researchers imported information on the spatial extent of marine scientific research, submarine communication cables, radioactive waste disposal, munitions and chemical weapons waste disposal, military operations, oil and gas industry, and bottom trawling OSPAR maritime area of the . . . → Read More: Our Impacts on the Deep... Read more »

  • September 20, 2010
  • 10:17 PM

Reading between the lines

by Kevin Bonham in Food Matters

Have you ever used one of those Dyson Airblade hand driers? I’ve used them at SFO and even in some restaurant bathrooms, and I have to admit, they’re pretty neat. Whether or not they’re actually better at drying your hands may be an open question, but  according to research published in the Journal of Applied [...]... Read more »

  • September 20, 2010
  • 09:10 PM

An Antiviral Agent that Acts by Targeting Cholesterol Biosynthesis

by Michael Long in Phased

Nicole Zitzmann (University of Oxford, United Kingdom) and coworkers' research shows exceptional promise for dramatically improving treatment efficacy for hepatitis B, hepatitis C, and HIV. This news feature was written on September 20, 2010.... Read more »

Pollock, S.;, Nichita, N. B.;, Böhmera, A.;, Radulescu. C.;, Dwek, R. A.;, & Zitzmann, N. (2010) Polyunsaturated liposomes are antiviral against hepatitis B and C viruses and HIV by decreasing cholesterol levels in infected cells. Proceedings of the National Academy of Sciences. info:/10.1073/pnas.1009445107

  • September 20, 2010
  • 08:01 PM

The Mother Theresa Stamp and the Cultural Legacy of Postage

by Krystal D'Costa in Anthropology in Practice

Unveiling of the Mother Theresa postage stamp Sept. 5th, 2010 at the National Shrine. Postmaster General Jack Potter was in attendance (immediately to the left of the stamp).

Over the recent Labor Day weekend, S and I visited Washington D.C. where purely by chance we stumbled on a stamp unveiling. We were touring the National Shrine—the mosaics are breathtaking—when we realized the ceremony occurring at the front had little to do with normal services.  The United States Post Office h........ Read more »

  • September 20, 2010
  • 07:29 PM

The Pelican’s Beak: Success and Evolutionary Stasis

by Laelaps in Laelaps

As a relatively infrequent airline traveler, packing for distant assignments and trips always presents me with an organizational challenge. Clothes, equipment, and supplies must be tracked down and stuffed into my cheap luggage, with frequent checks of the TSA website to ensure that I can unpack and repack my carryons with a minimum of hassle [...]... Read more »

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