by Peter Janiszewski, Ph.D. in Obesity Panacea
Way too much, according to a study by Johnson and colleagues, published in the Archives of Internal Medicine.
Personally, I love salty foods. While I have never been too fond of sweet things (chocolate, candy, etc.), just a few years ago I could have easily gone through a bag of chips or pretzels in one sitting. Just writing about that crunchy/salty goodness makes my mouth water.
However, since hypertension runs in my family, I have recently made a concerted effort to limit my sodium intake R........ Read more »
Johnson CM, Angell SY, Lederer A, Dumanovsky T, Huang C, Bassett MT, & Silver LD. (2010) Sodium content of lunchtime fast food purchases at major US chains. Archives of internal medicine, 170(8), 732-4. PMID: 20421561
A report was published in Science last week titled « Evidence for a collective intelligence factor in the performance of human groups ». They set up the « c factor », for collective intelligence, somehow a parallel of the g (for general intelligence. I told a bit about this after Prof. Haier’s conference at the EMBO meeting). In brief, what the authors report, is that individual intelligence of people constituting a group (a team) is not correlated with the success ........ Read more »
Anita Williams Woolley, Christopher F. Chabris, Alexander Pentland, Nada Hashmi, Thomas W. Malone. (2010) Evidence for a Collective Intelligence Factor in the Performance of Human Groups. Science. info:/10.1126/science.1193147
From the emergence of the first of their kind about 228 million years ago to the modern abundance of birds (their living descendants), dinosaurs have been one of the most successful groups of organisms on the planet. Why they originated in the first place, however, has been a much trickier subject to tackle. A study [...]... Read more »
Stephen L. Brusatte, Grzegorz Niedz´wiedzki, and, & Richard J. Butler. (2010) Footprints pull origin and diversification of dinosaur stem-lineage deep into Early Triassic . Proceedings of the Royal Society B. info:/10.1098/rspb.2010.1746
The previous post took a look at suicides in Switzerland, with a new study showing that, although the non-religious have a higher suicide rate than the religious, that seems to be largely down to assisted dying.
Switzerland is not like most other countries, however, which is where a new study, from an international team lead by Merike Sisak at the Estonian-Swedish Mental Health and Suicidology Institute, comes in. They looked at data from a major new WHO initiative, SUPRE-MISS. The main objecti........ Read more »
Sisask, M., Varnik, A., Kolves, K., Bertolote, J., Bolhari, J., Botega, N., Fleischmann, A., Vijayakumar, L., & Wasserman, D. (2010) Is Religiosity a Protective Factor Against Attempted Suicide: A Cross-Cultural Case-Control Study. Archives of Suicide Research, 14(1), 44-55. DOI: 10.1080/13811110903479052
by Nestor Lopez-Duran PhD in Child-Psych
Psychiatric disorders are diagnosed by determining the presence of specific symptoms, mostly without regards for what caused the symptoms. That is, if you have a specific number of symptoms and meet some additional criteria, then by definition, you have the disorder. For the most part, the rest of medicine doesn’t work this way. If you [...]... Read more »
Dadds, M., Jambrak, J., Pasalich, D., Hawes, D., & Brennan, J. (2010) Impaired attention to the eyes of attachment figures and the developmental origins of psychopathy. Journal of Child Psychology and Psychiatry. DOI: 10.1111/j.1469-7610.2010.02323.x
An international team of researchers charted the one billion year evolutionary course that a protein family followed, finding that today's novelty and complexity came about through many small changes... Read more »
Bridgham, J., Eick, G., Larroux, C., Deshpande, K., Harms, M., Gauthier, M., Ortlund, E., Degnan, B., & Thornton, J. (2010) Protein Evolution by Molecular Tinkering: Diversification of the Nuclear Receptor Superfamily from a Ligand-Dependent Ancestor. PLoS Biology, 8(10). DOI: 10.1371/journal.pbio.1000497
Humans can’t grow back severed hands. Not even a long time ago, in a galaxy far, far away. Otherwise, there would be no need for that scene at the end of The Empire Strikes Back showing Luke getting a spiffy new cyborg hand.
What humans need med droids for, amphibians accomplish with ease. Adults can regrow entire limbs. Tadpoles, well, they don’t have limbs yet, but they can regrow their tails. A tail is a complex organ, with nerves, muscle, blood vessels, and the like, so it’s not like ........ Read more »
Tseng A, Beane W, Lemire J, Masi A, & Levin M. (2010) Induction of vertebrate regeneration by a transient sodium current. Journal of Neuroscience, 30(39), 13192-13200. DOI: 10.1523/JNEUROSCI.3315-10.2010
From Global Health Promotion There is increasing evidence indicating that well-being in high-income societies may be in decline. One influential theory for this trend blames the driving values of materialism, individualism and consumerism in ‘modern’ societies, which in turn exert a damaging influence on well-being. These trends lead to an increase of social and health [...]... Read more »
Hanlon, P., & Carlisle, S. (2009) Is 'modern culture' bad for our health and well-being?. Global Health Promotion, 16(4), 27-34. DOI: 10.1177/1757975909348113
This has nothing to do with nuns' clothing. Habits are those behaviours that have become automatic, triggered by a cue in the environment rather than by conscious will. Health psychologists are interested for obvious reasons - they want to assist people in breaking unhealthy habits, while helping them adopt healthy ones. Remarkably, although there are plenty of habit-formation theories, before now, no-one had actually studied habits systematically as they are formed.
Phillippa Lally and her tea........ Read more »
Lally, P., van Jaarsveld, C., Potts, H., & Wardle, J. (2009) How are habits formed: Modelling habit formation in the real world. European Journal of Social Psychology. DOI: 10.1002/ejsp.674
Benjamin Evett, John Douglas Thompson, and Mirjana Jokovic in the American Repertory Theatre's production of Othello.O! beware, my lord, of jealousy;It is the green-ey'd monster which doth mockThe meat it feeds on. Iago, Act III scene iii of Shakespeare's OthelloOthello syndrome is a rare psychiatric condition marked by morbid, pathological, or delusional jealousy (Miller et al., 2010). It can occur in the context of schizophrenia, bipolar disorder, alcoholism, or epilepsy, but sometimes it's ob........ Read more »
TODD J, & DEWHURST K. (1955) The Othello syndrome; a study in the psychopathology of sexual jealousy. The Journal of nervous and mental disease, 122(4), 367-74. PMID: 13307271
Sci thought this particular paper was of current relevance, due in part to the public attention that bullying and social rejection has been getting lately. I think it’s really important that this gets in the public eye and that something is done about it, and so Sci will contribute her sciencey best to talk about [...]... Read more »
Slavich GM, Way BM, Eisenberger NI, & Taylor SE. (2010) Neural sensitivity to social rejection is associated with inflammatory responses to social stress. Proceedings of the National Academy of Sciences of the United States of America, 107(33), 14817-22. PMID: 20679216
by Colby Vorland in Biofortified
You may recall last year’s review by Dangour and colleagues that concluded, based on 162 studies, that “there is no evidence of a difference in nutrient quality between organically and conventionally produced foodstuffs.” This brought about much controversy on the web, as well as a rebuttal by Benbrook et al. Media reporting that failed to acknowledge limitations of this research, such as that it did not examine potential contaminant use, health outcomes, or Continue reading...... Read more »
Dangour AD, Lock K, Hayter A, Aikenhead A, Allen E, & Uauy R. (2010) Nutrition-related health effects of organic foods: a systematic review. The American journal of clinical nutrition. PMID: 20463045
Like many terms in Information Science (including 'Information Science' itself) the term 'webometrics' is pretty vague. Björneborn and Ingwersen (2004) defined webometrics as "the study of the quantitative aspects of the construction and use of information resources, structures and technologies on the Web drawing on bibliometric and informetric approaches." I guess this definition will have to do for the time being. Thelwall*, Klitkou, Verbeek, Stuart and Vincent (2010) set out to find in whi........ Read more »
Thelwall, M., Klitkou, A., Verbeek, A., Stuart, D., & Vincent, C. (2010) Policy-relevant Webometrics for individual scientific fields. Journal of the American Society for Information Science and Technology, 61(7), 1464-1475. DOI: 10.1002/asi.21345
Basketball games, elections and other head-to-head contests seem to affect the testosterone of people who care about them. Some studies have found that testosterone production goes down in fans of the losing side (for example, among male McCain supporters after the 2008 Presidential vote). And others found the hormone goes up among supporters of a winning team. Now this paper in last month's Evolution and Human Behavior claims to have found a practical consequence: After U.S. elections,........ Read more »
Markey, P., & Markey, C. (2010) Changes in pornography-seeking behaviors following political elections: an examination of the challenge hypothesis. Evolution and Human Behavior. DOI: 10.1016/j.evolhumbehav.2010.06.004
Wingfield, J., Hegner, R., Dufty, Jr., A., & Ball, G. (1990) The "Challenge Hypothesis": Theoretical Implications for Patterns of Testosterone Secretion, Mating Systems, and Breeding Strategies. The American Naturalist, 136(6), 829. DOI: 10.1086/285134
ARCHER, J. (2006) Testosterone and human aggression: an evaluation of the challenge hypothesis. Neuroscience , 30(3), 319-345. DOI: 10.1016/j.neubiorev.2004.12.007
Gonzalez-Bono, E., Salvador, A., Ricarte, J., Serrano, M., & Arnedo, M. (2000) Testosterone and attribution of successful competition. Aggressive Behavior, 26(3), 235-240. DOI: 10.1002/(SICI)1098-2337(2000)26:33.0.CO;2-L
Stanton, S., Beehner, J., Saini, E., Kuhn, C., & LaBar, K. (2009) Dominance, Politics, and Physiology: Voters' Testosterone Changes on the Night of the 2008 United States Presidential Election. PLoS ONE, 4(10). DOI: 10.1371/journal.pone.0007543
John DeLong (Yale University, United States) and coworkers present a paradoxical finding, namely that a lack of available energy supplies will enable the human population to keep on growing, rather than stabilize, in the coming decades. This news feature was written on October 5, 2010.... Read more »
DeLong, J. P., Burger, O., & Hamilton, M. J. (2010) Current Demographics Suggest Future Energy Supplies Will Be Inadequate to Slow Human Population Growth. PLoS ONE, 5(10). DOI: 10.1371/journal.pone.0013206
When we think of human population change and resource use, it’s easy to assume that more people will consume more resources, such as water, energy, and food. An important corollary is that resource limitations will limit population growth. Thomas Malthus was perhaps the most influential proponent of this idea.
However, several factors complicate this story:
(1) Affluence [...]... Read more »
DeLong, J., Burger, O., & Hamilton, M. (2010) Current Demographics Suggest Future Energy Supplies Will Be Inadequate to Slow Human Population Growth. PLoS ONE, 5(10). DOI: 10.1371/journal.pone.0013206
It was just a couple weeks back when I brought you troubling information found by the Center for Biological Diversity (buried in the Imperial Irrigation District report) regarding the state of burrowing owls in the Imperial Valley. Those surveys showed a 27% decline in breeding burrowing owls in what is California’s largest population. Well, I [...]... Read more »
ROBERT L. WILKERSON, & RODNEY B. SIEGEL. (2010) ASSESSING CHANGES IN THE DISTRIBUTION AND ABUNDANCE OF BURROWING OWLS IN CALIFORNIA, 1993-2007. Bird Populations, 1-36. info:/
This paper examines the costs and benefits of single versus multiple sourcing strategies, dependent on probability and consequences of supply disruption, vendor price escalation, inventory and schedule issues, technology access and quality control. [ ... ]... Read more »
Treleven, M. (1988) A risk/benefit analysis of sourcing strategies: Single vs. multiple sourcing. Journal of Operations Management, 7(3-4), 93-114. DOI: 10.1016/0272-6963(81)90007-3
by thomastu in Disease Prone
Still walking around with our pandemic-response-pants down So I’ve been reading about previous pandemics on the new History of Vaccines site: smallpox, Spanish flu, Bird flu, Swine flu… All have had big impacts on our society and shows how vulnerable we really are. But at least we can rest assured that we’ve seen this coming, [...]... Read more »
Gershon RR, Magda LA, Qureshi KA, Riley HE, Scanlon E, Carney MT, Richards RJ, & Sherman MF. (2010) Factors Associated With the Ability and Willingness of Essential Workers to Report to Duty During a Pandemic. Journal of occupational and environmental medicine / American College of Occupational and Environmental Medicine. PMID: 20881624
I have featured two common woodlice species before. There is a third common garden species, the fast woodlouse, Philoscia muscorum. As it name implies, it is quite fast, with long legs that keep its body well above the ground. Its dark, rounded head, and a longitudinal dark stripe along its shiny, marbled body, make it easy to identify (for a simple key to ID British woodlice click here). The fast woodlouse is a native European species which is also found in the U.S. It is of medium size (around........ Read more »
Grundy, A., & Sutton, S. (1989) Year class splitting in the woodlouse Philoscia muscorum explained through studies of growth and survivorship. Ecography, 12(2), 112-119. DOI: 10.1111/j.1600-0587.1989.tb00829.x
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