Today’s post comes to you courtesy of Denim and Tweed, where Jeremy brought up this question, and cited his works very well! And after I saw all that stuff on clitorises, I had cover it myself. Poor female orgasm. It’s always been up for debate. From issues over the G Spot to issues of what [...]... Read more »
Lynch, V. (2008) Clitoral and penile size variability are not significantly different: lack of evidence for the byproduct theory of the female orgasm. Evolution , 10(4), 396-397. DOI: 10.1111/j.1525-142X.2008.00248.x
Aww, look at that cute little face, those piggy little, opaque eyes, that wrinkled skin. I just know that you want a little refresher on giant salamanders, so - accompanied with new photos taken at the SMNK in Karlsruhe (by Markus Bühler; thanks) - here's a substantially augmented chunk of text that originally appeared here back in January 2008... Read the rest of this post... | Read the comments on this post...... Read more »
Kawamichi, T., & Ueda, H. (1998) Spawning at Nests of Extra-Large Males in the Giant Salamander Andrias japonicus. Journal of Herpetology, 32(1), 133. DOI: 10.2307/1565495
Dyphagia is a disorder of swallowing. It actually occurs in up to 10% of adults older than 50 years old. How can you determine the most likely causes for dysphagia? The secret is to obtain a thorough history and using the algorithm below, which I find really helpful from a review article in American Family Physician.How do you read the figure?Determine first if patient has oropharyngeal vs esophageal dysphagia. Determine if mechanical (problem is solid foods only) vs neuromuscular (problem ........ Read more »
Most of us are familiar with the old research saying attractive people get more, well, everything! And in a world that changes at dizzying speed, rest assured that this one remains as true as ever. A new study shows that we do judge a book by its cover “but a beautiful cover prompts a closer [...]
Related posts:Simple Jury Persuasion: Use pre-factual thinking to your advantage in litigation
Simple Jury Persuasion: Using counter-factual thinking to your advantage
Simple Jury Persuasion: Be Po........ Read more »
Lorenzo GL, Biesanz JC, & Human LJ. (2010) What Is Beautiful Is Good and More Accurately Understood: Physical Attractiveness and Accuracy in First Impressions of Personality. Psychological science : a journal of the American Psychological Society / APS. PMID: 21051521
Ruffle, Bradley J., & Shtudiner, Ze'ev. (2010) Are Good-Looking People More Employable?. SSRN. info:/
Since we only recently found out that microRNAs and small interfering RNAs (siRNAs) exist, and modulate gene expression, it’s perhaps not surprising that many aspects of their function are still puzzling. One mysterious feature is the fact that the efficacy of microRNAs and siRNAs in silencing mRNAs is rather unpredictable. For example, a single microRNA [...]... Read more »
Larsson E, Sander C, & Marks D. (2010) mRNA turnover rate limits siRNA and microRNA efficacy. Molecular systems biology, 433. PMID: 21081925
A lot of nonsense is written about the psychological effects of technology, and the Internet in particular. All that time staring at screens must reduce good ol' fashioned face-to-face contact, the scare-mongers say. A new study takes a different view. Levi Baker and Debra Oswald at Marquette University argue that "computer-mediated communication" could be just what shy people need.
Through sites like Facebook, shy people have more control over how they present themselves, the psychologists arg........ Read more »
Primacy debate: appraisal vs. arousalZajonc (1980) claimed that simple familiarity with something createsaffective reactions, such as liking or disliking, for that item. Objects werepresented subliminally while participants were engaged in another task. Theresults revealed that though the participants showed no recognition of thesubliminal items, they gave them higher preference ratings than novel items.Zajonc argued that the form of experience that we call feeling accompanies allcognitions, pre........ Read more »
Dana SUGU . (2010) Flashback: Reshuffling Emotions. International Journal on Humanistic Ideology, 3(1), 109-133. info:/
I’m a guest blogger for the RiAus, and this post also appeared on their fancy website. To tell the truth, I really wanted to call this post “Hormonally Yours” in homage to the Shakespeare Sisters (anyone?) but I’ll save it for another post. Recently I was in Arnhem Land, visiting some Indigenous communities with a [...]... Read more »
So everybody is excited about the new GFAJ-1 bacterium that Felisa Wolfe-Simon and her colleagues have discovered. A common buzzphrase diffusing through the media and blogosphere is “NASA discovers a new life form“. (Or, better yet alien life.) Big press conference, and I just finished going through the article that Wolfe-Simon and colleagues have published in Science. Great work. But is this really a new life form?... Read more »
Felisa Wolfe-Simon, Jodi Switzer Blum, Thomas R. Kulp, Gwyneth W. Gordon, Shelley E. Hoeft, Jennifer Pett-Ridge, John F. Stolz, Samuel M. Webb, Peter K. Weber, Paul C. W. Davies.... (2010) A Bacterium That Can Grow by Using Arsenic Instead of Phosphorus. Science. info:/10.1126/science.119725
An interesting study by Tann, et al (2010). They argue that, once the preserve of the medical profession, prescribing rights have now been extended to others including pharmacists. However in this paper the authors concentrate on one form of “non medical” prescribing by pharmacists, namely supplementary prescribing, which is carried out in partnership, with mostly, [...]... Read more »
Tann, J., Blenkinsopp, A., Grime, J., & Evans, A. (2010) The great boundary crossing: Perceptions on training pharmacists as supplementary prescribers in the UK. Health Education Journal, 69(2), 183-191. DOI: 10.1177/0017896910363300
As you may very well have heard by now, NASA made a bit of a splash today in the mainstream media and especially the science (and sci-fi too, of course) blogosphere / twitterverse through its press conference about a fascinating biological discovery with potential astrobiological significance. An "alien" life-form that incorporates Arsenic (which normally kills our kind of life-form) instead of Phosphorus in the "backbone" of its very DNA. Actually its a bacterium from ........ Read more »
Wolfe-Simon, F., Blum, J.S., Kulp, T.R., Gordon. G.W., Hoeft, S.E., Pett-Ridge, J., Stolz, J.F., Webb, S.M., Weber, P.K., Davies, P.C.W., Anbar, A.D., and, Oremland, R.S. (2010) A Bacterium That Can Grow by Using Arsenic Instead of Phosphorus. Science. info:/
Material damage and occupational accidents are little understood elements of the overall supply chain. This research looks at the paper industry in Finland and the occupational accidents that occur in the supply chain from the paper mill to the harbor of arrival. » Read more » » »
... Read more »
In his highly readable book, One Long Argument, Ernst Mayr breaks down the body of thought often referred to as "Darwin's Theory" into five separate and distinct theories, the second of which being "common descent." Darwin's second evolutionary theory (second by Mayr's count, not Darwin's) is really a hypothesis that could be worded this way:
All life on earth descended from a single, original, primordial form that arose eons ago.
The evidence in favor of this hypothesis is strong, but the te........ Read more »
Wolfe-Simon, Felisa, & Et.Al. (2010) A bacterium that can grow by using arsenic instead of phosphorus. Science. info:/10.1126/science.1197258
by Merry Youle in Small Things Considered
Like it or not, we can't shop around for a genetic code, nor do we have a choice of brand or model. We're pretty much stuck with the one we have at this point (although some researchers are modifying the code to synthesize proteins containing "designer amino acids"). The universal genetic code is just that, virtually universal. Oh, there are about 20 other "genetic codes" known but almost all of them are used only by mitochondria or else the differences are limited to start and stop codons. So h........ Read more »
So, as you have no doubt surmised from the title of this post, the cash-strapped Republican Party is going to start using their abundant frequent "flyer" points to pay their debts.
I'm kidding, of course. The GOP doesn't pay its debts!
Actually, we're going to talk about a paper just out in Genetics by Aniel Agarwal and Michael Whitlock. They provide a very thorough analysis of data on the fitness effects of homozygous and heterozygous gene deletions in yeast.
But let's back up for a minute........ Read more »
Agrawal, A., & Whitlock, M. (2010) Inferences About the Distribution of Dominance Drawn from Yeast Gene Knockout Data. Genetics. DOI: 10.1534/genetics.110.124560
One of the reasons that the neo-cortex has center stage in our view of the brain is that it is big, very big; another is that it is relatively bigger in humans than in animals; and finally is the fact that we can examine it more easily than other parts of the brain. So, hey, [...]... Read more »
Metzger CD, Eckert U, Steiner J, Sartorius A, Buchmann JE, Stadler J, Tempelmann C, Speck O, Bogerts B, Abler B.... (2010) High field FMRI reveals thalamocortical integration of segregated cognitive and emotional processing in mediodorsal and intralaminar thalamic nuclei. Frontiers in neuroanatomy, 138. PMID: 21088699
As mighty as Tyrannosaurus rex was, its tiny forelimbs have also made it one of the most mocked dinosaurs of all time. The stubby arms of this predator once seemed mismatched to its enormous frame, and some of the hypotheses put forward to explain their function just made the “tyrant king” seem sillier. The ideas [...]... Read more »
Agnolin, F., & Chiarelli, P. (2009) The position of the claws in Noasauridae (Dinosauria: Abelisauroidea) and its implications for abelisauroid manus evolution. Paläontologische Zeitschrift, 84(2), 293-300. DOI: 10.1007/s12542-009-0044-2
We all know sleep is good. Not only does it feel good, it helps consolidate our memories, fixing them in the brain so we can retrieve them later. But now, ... Read more »
Payne, J.D., . (2010) Sleep’s Role in the Consolidation of Emotional Episodic Memories. Current Directions in Psychological Science. info:/
Although some studies have found that early life environmental factors can affect our vulnerability to neurodegenerative diseases such as Alzheimer’s disease in later life, the underlying neuronal mechanisms of such vulnerability are not well understood. By looking at post mortem rhesus monkey brains, Merrill et al. (2011) finds an association between early life experience and subsequent risk of exhibiting neurodegeneration in later life. In the study, β-amyloid plaque density and synaptophys........ Read more »
Merrill DA, Masliah E, Roberts JA, McKay H, Kordower JH, Mufson EJ, & Tuszynski MH. (2011) Association of early experience with neurodegeneration in aged primates. Neurobiology of aging, 32(1), 151-6. PMID: 19321231
Obesity is a medical problem and obesity treatments should be initiated by trained health professionals.
This solid piece of advice, of course assumes that trained health professionals actually know something about obesity treatment.
But is this assumption really valid?
We addressed this issue in a study just published in the Journal of Obesity, in which we surveyed 33 [...]... Read more »
Padwal RS, Damjanovic S, Schulze KM, Lewanczuk RZ, Lau DC, & Sharma AM. (2011) Canadian Physicians' Use of Antiobesity Drugs and Their Referral Patterns to Weight Management Programs or Providers: The SOCCER Study. Journal of obesity (Online), 686521. PMID: 21113310
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