Infrared observations using the Spitzer Space Telescope, published by Verbiscer et al (2009, Nature), have revealed the largest known ring around Saturn, an annulus of very tenuous material extending between 6 million and 18 million kilometers from Saturn, and tilted by 27 degree from the plane of the traditional rings (which only extend out to ~240,000 km).The material in the new ring comes from the battered and cratered moon Phoebe. Of more interest, this new dust ring explains why the leading........ Read more »
Researchers look at 29-years of data in Texas and find that coastal birds have declined as development has risen...read more... Read more »
Foster, C., Amos, A., & Fuiman, L. (2009) Trends in Abundance of Coastal Birds and Human Activity on a Texas Barrier Island Over Three Decades. Estuaries and Coasts. DOI: 10.1007/s12237-009-9224-2
From recent research based on secondary analysis of data obtained from telephone interviews from a sample of 1003 email users the answer is not conclusive.
e-mail supports work performance, but at the same time contributes to negative effects that in the long run may affect motivation and satisfaction
In this research in which they also looked at [...]
Related posts:E-Mail Behavior Explained Human activity is hard to predict. In researching human...Computer Games at Work are Good For You I&........ Read more »
Mano, R., & Mesch, G. (2009) E-mail characteristics, work performance and distress. Computers in Human Behavior. DOI: 10.1016/j.chb.2009.08.005
Today's Nature contains a great paper which is one more step forward for cancer genomics. Using Illumina sequencing a group in British Columbia sequenced both the genome and transcriptome of a metastatic lobular (estrogen receptor positive) breast cancer. Furthermore, they searched a sample of the original tumor for mutations found in the genome+transcriptome screen in order to identify those that may have been present early vs. those which were acquired later.From the combined genome sequence........ Read more »
Sohrab P. Shah, Ryan D. Morin, Jaswinder Khattra, Leah Prentice, Trevor Pugh, Angela Burleigh, Allen Delaney, Karen Gelmon, Ryan Guliany, Janine Senz.... (2009) Mutational evolution in a lobular breast tumor profiled at single nucleotide resolution. Nature, 809-813. info:/10.1038/nature08489
A recent study looks at how a general human tendency to differentiate between causes of regret pays out at Black Jack tables in Las Vegas. They find that even gamblers exhibit strong omission bias. ... Read more »
Carlin B. . (2009) Fear and loathing in Las Vegas: Evidence from blackjack tables. Judgment and Decision Making, 4(5), 385-396. info:/
Most denizens of the interwebs (at least of this corner of the interwebs) will have heard the announcement that the 2009 Nobel Prize in Physiology or Medicine will be given to Elizabeth Blackburn, Carol Greider and Jack Szostak for their work on telomeres – the structures found at the ends of human chromosomes. You may [...]... Read more »
French food is famous around the world. From the haute cuisine espoused by cordon bleu and the Michelin Guide to weird and wonderful dishes like frogs legs, the French are passionate about cooking and what they eat.
However, a study published recently in the Journal of Nutrition has found that the diet consumed by the majority [...]... Read more »
Maillot, M., Vieux, F., Ferguson, E., Volatier, J., Amiot, M., & Darmon, N. (2009) To Meet Nutrient Recommendations, Most French Adults Need to Expand Their Habitual Food Repertoire. Journal of Nutrition, 139(9), 1721-1727. DOI: 10.3945/jn.109.107318
A new investigation of the sedimentology and ichnology of the Early Jurassic Moyeni tracksite in Lesotho, southern Africa has yielded new insights into the behavior and locomotor dynamics of early dinosaurs. Read the rest of this post... | Read the comments on this post...... Read more »
Wilson, J., Marsicano, C., & Smith, R. (2009) Dynamic Locomotor Capabilities Revealed by Early Dinosaur Trackmakers from Southern Africa. PLoS ONE, 4(10). DOI: 10.1371/journal.pone.0007331
A quick analysis of online social networks, such as LinkedIn and Xing would suggest that a mere 1 in 7 research scientists use such tools as part of their work. This contrasts starkly with the business world where uptake is up to 88%. In other words almost 9 out of every ten employees in the [...]Gen-F Scientists Ignoring Social Networking is a post from: Sciencebase Science Blog
... Read more »
Lackes, R., Siepermann, M., & Frank, E. (2009) Social networks as an approach to the enhancement of collaboration among scientists. International Journal of Web Based Communities, 5(4), 577. DOI: 10.1504/IJWBC.2009.028091
4. Nuclear DNA: Forays into 3 billion base pairs
4.1 Before Vi-80
The Vindija-80 (Vi-80) specimen is an important find for geneticists: it yielded a minimally contaminated sample and provided those first steps into Neanderthal genomics.
Previously, attempts at retrieving ancient nuclear DNA sequences proved to be a notoriously difficult process, plagued with problems of degradation, contamination and [...]... Read more »
Green, R., Krause, J., Ptak, S., Briggs, A., Ronan, M., Simons, J., Du, L., Egholm, M., Rothberg, J., Paunovic, M.... (2006) Analysis of one million base pairs of Neanderthal DNA. Nature, 444(7117), 330-336. DOI: 10.1038/nature05336
Briggs AW, Good JM, Green RE, Krause J, Maricic T, Stenzel U, Lalueza-Fox C, Rudan P, Brajkovic D, Kucan Z.... (2009) Targeted retrieval and analysis of five Neandertal mtDNA genomes. Science (New York, N.Y.), 325(5938), 318-21. PMID: 19608918
Krause J, Lalueza-Fox C, Orlando L, Enard W, Green RE, Burbano HA, Hublin JJ, Hänni C, Fortea J, de la Rasilla M.... (2007) The derived FOXP2 variant of modern humans was shared with Neandertals. Current biology : CB, 17(21), 1908-12. PMID: 17949978
Lalueza-Fox C, Römpler H, Caramelli D, Stäubert C, Catalano G, Hughes D, Rohland N, Pilli E, Longo L, Condemi S.... (2007) A melanocortin 1 receptor allele suggests varying pigmentation among Neanderthals. Science (New York, N.Y.), 318(5855), 1453-5. PMID: 17962522
Joshua Foster (2008) conducted a study that expands on the research that explores the role of visual and olfactory cues in attractiveness ratings. Previous studies – which found that olfactory cues may be as influential or more influential in evaluating attractiveness – have relied on retrospective reports from participants. Foster’s design utilized real-time, in-the-moment attractiveness [...]... Read more »
Foster, J. (2008) Beauty Is Mostly in the Eye of the Beholder: Olfactory Versus Visual Cues of Attractiveness. The Journal of Social Psychology, 148(6), 765-774. DOI: 10.3200/SOCP.148.6.765-774
One of the most common reasons to visit a doctor is musculoskeletal pain. And one of the first symptoms of a rheumatological disorder is pain – so it’s great to find this succinct overview of pain in rheumatological disorders. I think one of the saddest findings I’ve read recently (I blogged about it [...]... Read more »
It can be argued that one of the most influential articles ever published in the Journal of Applied Physiology is the Analysis of tissue and arterial blood temperatures in the resting human forearm by Harry H. Pennes, which appeared in Volume 1, No. 2, published in August, 1948. Thus begins Prof. Wissler, his 1998 revisit [...]... Read more »
PENNES HH. (1948) Analysis of tissue and arterial blood temperatures in the resting human forearm. Journal of applied physiology, 1(2), 93-122. PMID: 18887578
VISION is now well known to modulate the senses of touch and pain. For example, various studies have shown that looking at oneself being touched has the opposite effect - it can enhance tactile acuity, so that one can discriminate between two pinpoints which would otherwise feel like a single sensation. And last year, researchers from the University of Oxford showed that making a limb look larger or smaller than it actually using binoculars can respectively enhance and diminish painful sensation........ Read more »
Longo, M., Betti, V., Aglioti, S., & Haggard, P. (2009) Visually Induced Analgesia: Seeing the Body Reduces Pain. Journal of Neuroscience, 29(39), 12125-12130. DOI: 10.1523/JNEUROSCI.3072-09.2009
Decline in hiking and backpacking could hurt conservation donations
... Read more »
Zaradic, P., Pergams, O., & Kareiva, P. (2009) The Impact of Nature Experience on Willingness to Support Conservation. PLoS ONE, 4(10). DOI: 10.1371/journal.pone.0007367
At almost any spot on the globe, there are species present that are not native to that locale, having been transported by human activities. Whether and how exotic species impact communities is a multifaceted problem that requires understanding the multitude of direct and indirect species interactions that occur. In a paper published in the Proceedings of the Royal Society, B, Montserrat Vila and colleagues asked if exotic plants where integrated into plant-pollinator networks, and whether this i........ Read more »
Vila, M., Bartomeus, I., Dietzsch, A., Petanidou, T., Steffan-Dewenter, I., Stout, J., & Tscheulin, T. (2009) Invasive plant integration into native plant-pollinator networks across Europe. Proceedings of the Royal Society B: Biological Sciences, 276(1674), 3887-3893. DOI: 10.1098/rspb.2009.1076
Unfortunately there are other negative changes in body fat distribution with age, including increased fat storage in the heart, liver, bone marrow, and skeletal muscle, all of which are associated with increased metabolic risk, as well as increased risk of fractures in the case of bone marrow. And as mentioned before, none of these changes are readily apparent when obesity is being measured by BMI or waist circumference alone, which are the most common measures used in the field (and which are ........ Read more »
Kuk, J., Saunders, T., Davidson, L., & Ross, R. (2009) Age-related changes in total and regional fat distribution. Ageing Research Reviews, 8(4), 339-348. DOI: 10.1016/j.arr.2009.06.001
A topic that arises every now and again, particularly when I am discussing Ecstasy-related medical emergency and death, is the nature of the psychoactive ingredients in Ecstasy tablets. For definitional purposes, I consider 3,4-methylenedioxymethamphetamine (MDMA) to be what is considered by the vast majority of consumers to be canonical "Ecstasy".
It is reasonably well-established in the peer reviewed literature and the ecstasydata.org harm reduction effort that some fraction of Ecstasy that ........ Read more »
How did Komodo dragons evolve to be the world's biggest lizards?
The story goes that cartographers would write, “Here be dragons,” on the places of the map where they had no information. This would only be true in a few areas of the world, namely a few islands in the south Pacific, where Komodo dragons live.
As I talked about in an earlier post, weird things happen to the size of species on islands. Big species get small. Small species get big.
And if there’s one ........ Read more »
Hocknull, S., Piper, P., van den Bergh, G., Due, R., Morwood, M., & Kurniawan, I. (2009) Dragon's Paradise Lost: Palaeobiogeography, Evolution and Extinction of the Largest-Ever Terrestrial Lizards (Varanidae). PLoS ONE, 4(9). DOI: 10.1371/journal.pone.0007241
... Read more »
Thompson, M., Schwager, S., Payne, K., & Turkalo, A. (2009) Acoustic estimation of wildlife abundance: methodology for vocal mammals in forested habitats. African Journal of Ecology. DOI: 10.1111/j.1365-2028.2009.01161.x
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