What is the origin story of deep-sea organisms? For decades, we thought shallow coastal waters were the cradle of marine life repeatedly pumping species into the deep. This is the simplest story. The more complex origin story involves multiple anoxic events, catastrophic events, survival of the fittest, so on and so forth with species originating [...]... Read more »
Lindner, A., Cairns, S., & Cunningham, C. (2008) From Offshore to Onshore: Multiple Origins of Shallow-Water Corals from Deep-Sea Ancestors. PLoS ONE, 3(6). DOI: 10.1371/journal.pone.0002429
Inoue, J., Miya, M., Miller, M., Sado, T., Hanel, R., Hatooka, K., Aoyama, J., Minegishi, Y., Nishida, M., & Tsukamoto, K. (2010) Deep-ocean origin of the freshwater eels. Biology Letters. DOI: 10.1098/rsbl.2009.0989
Raupach, M., Mayer, C., Malyutina, M., & Wägele, J. (2009) Multiple origins of deep-sea Asellota (Crustacea: Isopoda) from shallow waters revealed by molecular data. Proceedings of the Royal Society B: Biological Sciences, 276(1658), 799-808. DOI: 10.1098/rspb.2008.1063
Raupach, M., Malyutina, M., Brandt, A., & Wägele, J. (2007) Molecular data reveal a highly diverse species flock within the munnopsoid deep-sea isopod Betamorpha fusiformis (Barnard, 1920) (Crustacea: Isopoda: Asellota) in the Southern Ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 54(16-17), 1820-1830. DOI: 10.1016/j.dsr2.2007.07.009
Lane, N., Allen, J., & Martin, W. (2010) How did LUCA make a living? Chemiosmosis in the origin of life. BioEssays. DOI: 10.1002/bies.200900131
Researchers at MIT have identified a gene, DISC1, implicated in the neural and behavioral psychopathology of schizophrenia.... Read more »
Mao Y, Ge X, Frank CL, Madison JM, Koehler AN, Doud MK, Tassa C, Berry EM, Soda T, Singh KK.... (2009) Disrupted in schizophrenia 1 regulates neuronal progenitor proliferation via modulation of GSK3beta/beta-catenin signaling. Cell, 136(6), 1017-31. PMID: 19303846
How Much Is Decided Even Before Birth?
“The daughter of Virata… (was) exceedingly afflicted by grief on account of the death of her husband…they all feared that the embryo in her womb might be destroyed.” – The Mahabharata (~500 BC).
This quote from the Mahabharata, and many other examples from literature, reiterate the sentiment that the emotional [...]... Read more »
DiPietro, J., Novak, M., Costigan, K., Atella, L., & Reusing, S. (2006) Maternal Psychological Distress During Pregnancy in Relation to Child Development at Age Two. Child Development, 77(3), 573-587. DOI: 10.1111/j.1467-8624.2006.00891.x
You might have seen news reports about a recent study showing that religious people are no healthier than non-religious. The cynical among you might be wondering what on Earth's going on here, given that other studies have shown the opposite! A classic example of scientists proving whatever they want to, perhaps?Well, no. There's a good reason that this study has found something different, and that's because it's not asking quite the same question.You see, working out the relationship between re........ Read more »
Feinstein M, Liu K, Ning H, Fitchett G, & Lloyd-Jones DM. (2010) Burden of cardiovascular risk factors, subclinical atherosclerosis, and incident cardiovascular events across dimensions of religiosity: the multi-ethnic study of atherosclerosis. Circulation, 121(5), 659-66. PMID: 20100975
Significant p-values. For so many scientists using statistics, this is your lord. Your master. Heck, it has its own facebook group filed under religious affiliations (ok, so, maybe I created that.) And it is a concept to whose slavish devotion we may have sacrificed a good bit of forward progress [...]... Read more »
Hurlbert, S. H., & Lombardi, C. M. (2009) Final collapse of the Neyman-Pearson decision theoretic framework and rise of the neoFisherian. Annales Zoologici Fennici, 311-349. info:/
by Vincent Racaniello in virology blog
A new retrovirus, xenotropic murine leukaemia virus-related virus (XMRV), first identified in tumor tissue of individuals with prostate cancer, was subsequently found in 68 of 101 US patients with chronic fatigue syndrome (CFS). XMRV was not detected in blood samples of 186 confirmed CFS patients in the United Kingdom. A second independent study in the [...]... Read more »
Harriet C T Groom, Virginie C Boucherit, Kerry Makinson, Edward Randal, Sarah Baptista, Suzanne Hagan, John W Gow, Frank M Mattes, Judith Breuer, Jonathan R Kerr.... (2010) Absence of xenotropic murine leukaemia virus-related virus in UK patients with chronic fatigue syndrome. Retrovirology. info:/10.1186/1742-4690-7-10
Imagine a child who gets good grades in school, listens well to his teacher, and is commended for his good behavior in the classroom. Then slowly, his grades start to decline, he grows moodier, and his teacher reports that his attention often drifts in class. The parents are stumped - they can’t think of anything [...]... Read more »
Kheirandish-Gozal, L., de Jong, M., Spruyt, K., Chamuleau, S., & Gozal, D. (2010) Obstructive sleep apnoea is associated with impaired pictorial memory task acquisition and retention in children. European Respiratory Journal. DOI: 10.1183/09031936.00114209
For most of my clinical working life the focus in pain management has been on factors that identify people who have a high risk of developing long-term disability associated with their pain. The tide is turning, though, and increasingly we’re seeing papers published that look instead at treatment provider attitudes, beliefs and behaviours as [...]... Read more »
Bowey-Morris, J., Purcell-Jones, G., & Watson, P. (2010) Test-Retest Reliability of the Pain Attitudes and Beliefs Scale and Sensitivity to Change in a General Practitioner Population. The Clinical Journal of Pain, 26(2), 144-152. DOI: 10.1097/AJP.0b013e3181bada3d
The criteria used to assign patients to specific psychiatric disease categories are set out in the Diagnostic and Statistical Manual of Mental Disorders, published by the American Psychiatric Association. (There is also a World Health Organisation equivalent, the International Classification of Disease). Every so often, these criteria are revised to reflect new research and changing concepts of disease. The APA has just released a draft of preliminary revisions to the current diagnost........ Read more »
LICHTENSTEIN, P., YIP, B., BJORK, C., PAWITAN, Y., CANNON, T., SULLIVAN, P., & HULTMAN, C. (2009) Common genetic determinants of schizophrenia and bipolar disorder in Swedish families: a population-based study. The Lancet, 373(9659), 234-239. DOI: 10.1016/S0140-6736(09)60072-6
Rzhetsky, A., Wajngurt, D., Park, N., & Zheng, T. (2007) Probing genetic overlap among complex human phenotypes. Proceedings of the National Academy of Sciences, 104(28), 11694-11699. DOI: 10.1073/pnas.0704820104
Sebat J, Levy DL, & McCarthy SE. (2009) Rare structural variants in schizophrenia: one disorder, multiple mutations; one mutation, multiple disorders. Trends in genetics : TIG, 25(12), 528-35. PMID: 19883952
by Merry Youle in Small Things Considered
Lysogeny—a nasty time bomb or a mutually beneficial symbiosis? A prophage gone lytic will murder its host, but a symbiotic picture can well be argued. Here are some thoughts about the ongoing give-and-take. More details are still emerging. 1. If you are a phage, why be temperate? A phage at the crossroads. Lambda (λ), the intensely- studied temperate...... Read more »
Paul, J. (2008) Prophages in marine bacteria: dangerous molecular time bombs or the key to survival in the seas?. The ISME Journal, 2(6), 579-589. DOI: 10.1038/ismej.2008.35
A reconstruction of Smilodon, photographed at the American Museum of Natural History.
When it comes to animals, encyclopedias often present us with generalized descriptions. Where a creature lives, what color it is, what it eats, and other tidbits of information are listed to distinguish one species from another, but what is lost is an appreciation of variation. Be they genetic, anatomical, or behavioral, variations are grist for natural selection's mill, and if you study any species in de........ Read more »
Wendy J. Binder; Blaire Van Valkenburgh. (2010) A comparison of tooth wear and breakage in Rancho La Brea Sabertooth Cats and dire wolves across time. Journal of Verterbrate Paleontology, 30(1), 255-161. info:/10.1080/02724630903413016
by Nestor Lopez-Duran PhD in Child-Psych
Last week after writing about the DSM-V “Temper Dysregulation Disorder with Dysphoria,” I received several emails asking my opinion regarding the proposed merger of autism and Asperger’s disorder into a single ’spectrum’ category. This change has clearly generated some significant political debate in the media and the blogosphere, with some in favor of the change [...]... Read more »
Klin, A., Pauls, D., Schultz, R., & Volkmar, F. (2005) Three Diagnostic Approaches to Asperger Syndrome: Implications for Research. Journal of Autism and Developmental Disorders, 35(2), 221-234. DOI: 10.1007/s10803-004-2001-y
Pinpointing prostate problems – The chemical cousin of magnetic resonance imaging, MR spectroscopy, could be used to pinpoint the exact location of prostate cancers and to determine the aggressiveness of a tumour without major surgical intervention, according to research published in the journal Science Translational Medicine.
“Magnetic resonance (MR) spectroscopy which can analyse the biochemistry rather [...]Prostate problem probed is a post from: Sciencebase Science Blog
... Read more »
Wu, C., Jordan, K., Ratai, E., Sheng, J., Adkins, C., DeFeo, E., Jenkins, B., Ying, L., McDougal, W., & Cheng, L. (2010) Metabolomic Imaging for Human Prostate Cancer Detection. Science Translational Medicine, 2(16), 16-16. DOI: 10.1126/scitranslmed.3000513
How simple is it to treat somnambulism? The recent popularity of the recorded alter-ego of 'Sleep-Talking Man' has me looking at what research has been done.... Read more »
Harris M, & Grunstein RR. (2009) Treatments for somnambulism in adults: assessing the evidence. Sleep medicine reviews, 13(4), 295-7. PMID: 19046651
Siddiqui F, Osuna E, & Chokroverty S. (2009) Writing emails as part of sleepwalking after increase in Zolpidem. Sleep medicine, 10(2), 262-4. PMID: 19059805
A new study looks at whether land conservation programs are targeting their efforts to control the path of development and promote smart growth...... Read more »
Stoms, D., Jantz, P., Davis, F., & DeAngelo, G. (2009) Strategic targeting of agricultural conservation easements as a growth management tool. Land Use Policy, 26(4), 1149-1161. DOI: 10.1016/j.landusepol.2009.02.004
Slow Food is against standardization, right? Slow Food is for diversity, right? Well, sort of. That is certainly the rhetoric, but a paper by Ariane Lotti in Agriculture and Human Values suggests that the practice can be rather different.
Lotti, who’s something of an insider, analyzes one of Slow Food’s projects in detail and comes to [...]... Read more »
Lotti, A. (2009) The commoditization of products and taste: Slow Food and the conservation of agrobiodiversity. Agriculture and Human Values, 27(1), 71-83. DOI: 10.1007/s10460-009-9213-x
Psychologists in Denmark may have hammered the final nail into the coffin containing 'repression' - the idea, made popular by psychoanalysis, that negative, emotional memories are particularly prone to be being locked up out of conscious reach.Simon Nørby and his colleagues at the University of Copenhagen presented dozens of undergrad participants with word pairs, each made up of a cue word and an unrelated target word. Past research has suggested that people are able to deliberately forget som........ Read more »
Nørby S, Lange M, & Larsen A. (2010) Forgetting to forget: on the duration of voluntary suppression of neutral and emotional memories. Acta psychologica, 133(1), 73-80. PMID: 19906363
Leaf-cutter ants are crafty cultivators. They tend vast gardens of fungus that they harvest to feed their minions. In return, the ants care for the fungus. They constantly clip and compost bits of leaves to form a rich substrate on which the fungus thrives. When the fungus is attacked by pathogens, the ants fight back, armed with bacteria that counteract the pathogen.... Read more »
Pinto-Tomas, A., Anderson, M., Suen, G., Stevenson, D., Chu, F., Cleland, W., Weimer, P., & Currie, C. (2009) Symbiotic Nitrogen Fixation in the Fungus Gardens of Leaf-Cutter Ants. Science, 326(5956), 1120-1123. DOI: 10.1126/science.1173036
Last week @F1000 (on Twitter) alerted me to an interesting discussion at F1000 on a paper in Science, that linked Chronic fatigue syndrome (CFS) to a newly discovered human virus XRMV [1. This finding was recently disputed by another study in PLOS , ... Read more »
Lombardi VC, Ruscetti FW, Das Gupta J, Pfost MA, Hagen KS, Peterson DL, Ruscetti SK, Bagni RK, Petrow-Sadowski C, Gold B.... (2009) Detection of an infectious retrovirus, XMRV, in blood cells of patients with chronic fatigue syndrome. Science (New York, N.Y.), 326(5952), 585-9. PMID: 19815723
Erlwein, O., Kaye, S., McClure, M., Weber, J., Wills, G., Collier, D., Wessely, S., & Cleare, A. (2010) Failure to Detect the Novel Retrovirus XMRV in Chronic Fatigue Syndrome. PLoS ONE, 5(1). DOI: 10.1371/journal.pone.0008519
Personally I like online shopping mainly because it’s easy, fast and convenient, you can shop when you want to anywhere you want to. There’s a gender gap in online shopping. More men than women engage in online shopping and make online purchases while in the offline world women love to shop.
Until recent very few [...]
Related posts:Why Women Drop Maths Not only in the medical academic workforce are women...
Finding Credible Health Information Online: MedLibs Round 1.8 The MedL........ Read more »
Hasan, B. (2010) Exploring gender differences in online shopping attitude. Computers in Human Behavior. DOI: 10.1016/j.chb.2009.12.012
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