Spotted hyenas giggling over an antelope spine. Courtesy BMC Ecology.
For spotted hyenas, a laugh can speak volumes about an individual.
Despite being portrayed as stupid scavengers who rely on the leftovers of lion prides, hyenas are highly intelligent and social predators. They communicate with each other through an array of whoops, yowls, grunts, screams, and giggles, and by using these calls an individual can call in help to run lions off a carcass or signal that it's time to beat a ........ Read more »
Nicolas Mathevon1, Aaron Koralek, Mary Weldele, Stephen E Glickman, Frédéric Theunissen. (2010) What the hyena's laugh tells: Sex, age, dominance and individual signature in the giggling call of Crocuta crocuta. BMC Ecology, 10(9). info:/10.1186/1472-6785-10-9
The National Association of Biology Teachers has recently published the results of a survey which focused on the attitudes held by Florida’s biology teachers towards the teaching of evolution.... Read more »
FOWLER and MEISELS. (2010) Florida Teachers’ Attitudes about Teaching Evolution. The American Biology Teacher, 72(2), 96-99. info:/10.1525/abt.2010.72.2.8
... Read more »
Kaushal, S., Likens, G., Jaworski, N., Pace, M., Sides, A., Seekell, D., Belt, K., Secor, D., & Wingate, R. (2010) Rising stream and river temperatures in the United States. Frontiers in Ecology and the Environment, 2147483647. DOI: 10.1890/090037
Physician burnout and job dissatisfaction are concerning as physicians in the United States have more patients to see in less time with fewer resources. Physician burnout is associated with job absenteeism, leaving the profession altogether, poor quality of care, and medical errors. Now, a recent study published in the Journal of the American Medical Association [...]... Read more »
Krasner, M., Epstein, R., Beckman, H., Suchman, A., Chapman, B., Mooney, C., & Quill, T. (2009) Association of an Educational Program in Mindful Communication With Burnout, Empathy, and Attitudes Among Primary Care Physicians. JAMA: The Journal of the American Medical Association, 302(12), 1284-1293. DOI: 10.1001/jama.2009.1384
Utsugi-Ozaki, M., Bito, S., Matsumura, S., Hayashino, Y., Fukuhara, S., & , . (2009) Physician Job Satisfaction and Quality of Care Among Hospital Employed Physicians in Japan. Journal of General Internal Medicine, 24(3), 387-392. DOI: 10.1007/s11606-008-0886-4
Michael Ash BSc(Hons) DO, ND, Dip ION explores the idea that drinking sparkling water has a direct health benefit for the drinker, if not for the environment.
In this case fizzy drink consumers are directed towards a specific water drink rather than some of the more challenging sugar laden carbonated offerings. So if compelled to drink [...]... Read more »
Schoppen S, Pérez-Granados AM, Carbajal A, Oubiña P, Sánchez-Muniz FJ, Gómez-Gerique JA, & Vaquero MP. (2004) A sodium-rich carbonated mineral water reduces cardiovascular risk in postmenopausal women. The Journal of nutrition, 134(5), 1058-63. PMID: 15113945
Two of the frequent aims of career coaching or counselling are to empower clients and to help them develop amibtious personal goals. Nothing could possibly be wrong with that, you might think.
However, according to studies performed by Mario Weick, from the University of Kent, and Ana Guinote, from University College London, people who experience feelings [...]... Read more »
Weick, M., & Guinote, A. (2010) How Long Will It Take? Power Biases Time Predictions. Journal of Experimental Social Psychology. DOI: 10.1016/j.jesp.2010.03.005
Really need to take care of the long lineup of overdue Mystery Micrographs. And clean up a bit of this huge drafts pile that has accumulated lately. Because I'm lazy, let's do Spironucleus first, from MM17. It goes well with laziness as not very much is known about it, which means there isn't too much to write about it. Shit, now you know why I blog about obscure organisms like those various protists...my secret is out!SEMs of diplomonad fish parasite Spironucleus vortens. cr - compound lateral ........ Read more »
JORGENSEN, A., & STERUD, E. (2007) Phylogeny of Spironucleus (Eopharyngia: Diplomonadida: Hexamitinae). Protist, 158(2), 247-254. DOI: 10.1016/j.protis.2006.12.003
POYNTON, S., FRASER, W., FRANCIS-FLOYD, R., RUTLEDGE, P., REED, P., & NERAD, T. (1995) Spironucleus vortens N. Sp. from the Freshwater Angelfish Pterophyllum scalare: Morphology and Culture. The Journal of Eukaryotic Microbiology, 42(6), 731-742. DOI: 10.1111/j.1550-7408.1995.tb01625.x
Sterud E, Poppe T, & Bornø G. (2003) Intracellular infection with Spironucleus barkhanus (Diplomonadida: Hexamitidae) in farmed Arctic char Salvelinus alpinus. Diseases of aquatic organisms, 56(2), 155-61. PMID: 14598991
STERUD, E., & POYNTON, S. (2002) Spironucleus vortens (Diplomonadida) in the Ide, Leuciscus idus (L.) (Cyprinidae): a Warm Water Hexamitid Flagellate Found in Northern Europe. The Journal of Eukaryotic Microbiology, 49(2), 137-145. DOI: 10.1111/j.1550-7408.2002.tb00357.x
A new study from researchers in the Netherlands demonstrates that wetlands can be constructed in strategic locations to clean up rivers while producing enough biomass to serve as a clean energy source...... Read more »
Meerburg, B., Vereijken, P., Visser, W., Verhagen, J., Korevaar, H., Querner, E., Blaeij, A., & Werf, A. (2010) Surface water sanitation and biomass production in a large constructed wetland in the Netherlands. Wetlands Ecology and Management. DOI: 10.1007/s11273-010-9179-x
From a systematic review of 10 randomized clinical trials: chocolate has blood pressure lowering capacity. Dark chocolate has a high content of flavanols. Flavonoids are the part of chocolate important for health benefits. They can also be found in high concentrations in certain fruits and vegetables. In the context of human nutrition, certain teas, grape [...]
Related posts:Have Your Dark Chocolate with Green Tea
How Much Chocolate is good for your Health?
A Chocolate Bar A Day Keeps the Doc........ Read more »
Desch, S., Schmidt, J., Kobler, D., Sonnabend, M., Eitel, I., Sareban, M., Rahimi, K., Schuler, G., & Thiele, H. (2009) Effect of Cocoa Products on Blood Pressure: Systematic Review and Meta-Analysis. American Journal of Hypertension, 23(1), 97-103. DOI: 10.1038/ajh.2009.213
Try to remember this visual paired associate (AB):Now recall visual paired associate AB:Next, I'm going to have you remember another visual paired associate (AC):Now recall visual paired associate AC:Can you still remember the first visual paired associate (AB)?What if I were to pay you ten cents to remember? How about a hundred bucks? Would your memory performance increase? Stay the same? Most of your would probably infer the former. More money = more motivation to memorize.That's what Kuhl and........ Read more »
Kuhl, B., Shah, A., DuBrow, S., & Wagner, A. (2010) Resistance to forgetting associated with hippocampus-mediated reactivation during new learning. Nature Neuroscience, 13(4), 501-506. DOI: 10.1038/nn.2498
Sci picked this paper today partially because it was handed to her on a platter by the fantastic Dr. Pal, and partially because today she is SO HUNGRY. She's had a TON of food already today, and is still entirely ravenous. Maybe it was looking at this paper too long.
As I'm sure most of y'all out there are aware, obesity is a problem in the US. No one is sure whether it's due to increased portion size, increased availability, decreased physical activity, changes in g........ Read more »
Johnson, P., & Kenny, P. (2010) Dopamine D2 receptors in addiction-like reward dysfunction and compulsive eating in obese rats. Nature Neuroscience. DOI: 10.1038/nn.2519
A couple of weeks ago there was an interesting exchange in The Guardian between George Monbiot and Nicholas Maxwell, a philosopher of science from University College London. In his piece, Monbiot presents an excellent, if overly pessimistic, analysis of the psychology behind climate change denial. In his response, Maxwell draws on some interesting results from the philosophy [...]... Read more »
The latest edition of Nature carries an item that raises the possibility of another new - & recent - new hominin species, this time from Siberia (Krasuse et al., 2010). A few years ago, when the story about Homo floresiensis first broke, I...... Read more »
Krause, J., Fu, Q., Good, J., Viola, B., Shunkov, M., Derevianko, A., & Pääbo, S. (2010) The complete mitochondrial DNA genome of an unknown hominin from southern Siberia. Nature. DOI: 10.1038/nature08976
Researchers have unearthed a 425 million year old ostracod – with the soft body preserved within its outer shell. The study of the water flea like creature, which belongs to the animal group Crustacea, is published in the latest issue of Proceedings of the Royal Society B, as well as in the online journal of the Natural Environment Research Council, Planet Earth.... Read more »
Siveter, D., Briggs, D., Siveter, D., & Sutton, M. (2010) An exceptionally preserved myodocopid ostracod from the Silurian of Herefordshire, UK. Proceedings of the Royal Society B: Biological Sciences. DOI: 10.1098/rspb.2009.2122
In the last post, we looked at a piece of research on how easy it is to clean up the scientific literature in the wake of retractions or corrections prompted by researcher misconduct in published articles. Not surprisingly, in the comments on that post there was some speculation about what prompts researchers to commit scientific misconduct in the first place.
As it happens, I've been reading a paper by Mark S. Davis, Michelle Riske-Morris, and Sebastian R. Diaz, titled "Causal Factors ........ Read more »
Davis, M., Riske-Morris, M., & Diaz, S. (2007) Causal Factors Implicated in Research Misconduct: Evidence from ORI Case Files. Science and Engineering Ethics, 13(4), 395-414. DOI: 10.1007/s11948-007-9045-2
Dolphin reproduction in Mississippi Sound spiked after Hurricane Katrina
... Read more »
Miller, L.J. et al. (2010) Potential effects of a major hurricane on Atlantic bottlenose dolphin (Tursiops truncatus) reproduction in the Mississippi Sound. Marine Mammal Science. DOI: 10.1111/j.1748-7692.2010.00371.x
Although Brazil’s been making biofuels for decades, the rest of the world has quickly got interested over the last few years, due to concerns about climate change, as well as the rising price of oil. Unfortunately, it’s none too easy: plants tend to store a lot of the energy in molecules that are hard to [...]... Read more »
Wendell, D., Todd, J., & Montemagno, C. (2010) Artificial Photosynthesis in Ranaspumin-2 Based Foam. Nano Letters, 2147483647. DOI: 10.1021/nl100550k
A missed classic? Perhaps, because after reading this article I realized that this in many ways is a seminal paper. Rachel Mason-Jones and Dennis Towill are not unknown to me, and I’ve come across their names time and again, but this is probably the first time I delved more deeply into their research and their [ ... ]... Read more »
Mason-Jones, R., & Towill, D. (1998) Shrinking the supply chain uncertainty circle. IOM Control Magazine, 24(7). info:/
The fail whale comes to rest; the decomposing body of a gray whale is host to a diverse array of scavengers and other deep sea organisms. From Goffredi et al., 2004.
In the deep sea, no carcass goes to waste. Platoons of crabs, fish, and other scavengers make short work of most of the bodies which come to rest on the sea bottom, but every now and then the carrion-eaters are presented with a rotting bonanza; a whale fall. Muscle, viscera, blubber, and bone; it all gets broken down, but it t........ Read more »
FERNANDO MUN˜IZ, JORDI M. DE GIBERT, and RAUL ESPERANTE. (2010) FIRST TRACE-FOSSIL EVIDENCE OF BONE-EATING WORMS IN WHALE CARCASSES. Palaios, 269-273. info:/10.2110/palo.2009.p09-112r
I think that label has to be one of the most feared amongst the people I see with chronic pain. To be judged as being obsessed about nonexistant illnesses when actually having pain every day must be incredibly difficult to cope with. At the same time, being anxious about health and having mistaken beliefs about [...]... Read more »
Abramowitz, J., Deacon, B., & Valentiner, D. (2007) The Short Health Anxiety Inventory: Psychometric Properties and Construct Validity in a Non-clinical Sample. Cognitive Therapy and Research, 31(6), 871-883. DOI: 10.1007/s10608-006-9058-1
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