virus + bacteria: evolution
[image: Evolution of a trait. An image of the protein, LamB, on the surface of the bacterial cell. Scientists examined what happened with the virus could no longer infect the bacteria through this protein.]*An image of a protein, LamB, found on the surface of the bacterial cell. Scientists examined what happened when a virus could no longer infect the bacteria through this protein. CREDIT: Justin Meyer * *View full size image* The arms race between a virus and the bacteria it attacks has helped scientists better *understand one of the mysteries of evolution: How new traits evolve.* ... mais »
Alzheimer
Modelo ideal Por meio do estudo de neurônios criados a partir de células da pele de pacientes com Alzheimer, pesquisadores norte-americanos obtêm dados inéditos sobre mecanismos envolvidos no desenvolvimento da doença. O feito é tema da coluna deste mês de Stevens Rehen. Por: Stevens Rehen Publicado em 27/01/2012 | Atualizado em 27/01/2012 [image: Modelo ideal] Por meio da técnica de reprogramação celular, pesquisadores do Instituto de Pesquisas Salk, da Califórnia (EUA), criaram neurônios a partir de células da pele de pacientes com Alzheimer. (foto: Goldstein et al./ Nature) O estud... mais »
Risk factor by 55
Risk of Cardiac Death Pretty Much Set by 55 *By Crystal Phend, Senior Staff Writer, MedPage Today Published: January 25, 2012 Reviewed by Robert Jasmer, MD; Associate Clinical Professor of Medicine, University of California, San Francisco.* Two or more major risk factors at age 55 predicted a 29.6% chance of death from cardiovascular disease by age 80 for men and 20.5% for women, Donald M. Lloyd-Jones, MD, of Northwestern University in Chicago, and colleagues found.Even a couple of traditional cardiovascular risk factors in middle age spell high lifetime risk for the heart, researche... mais »
Capitalism: Davos
DAVOS How to Save Capitalism By MICHAEL SCHUMAN | January 19, 2012 | * * [image: FABRICE COFFRINI / AFP / GETTY IMAGES] FABRICE COFFRINI / AFP / GETTY IMAGES A guard stands next to a logo of the World Economic Forum (WEF) at the Congress Center in the Swiss resort of Davos on January 24, 2012. As the global economic crisis enters its fourth excruciating year, just about everybody who can be blamed for the downturn has been blamed. Irresponsible bankers. Greedy corporate executives. Incompetent regulators. Bickering politicians. Underpaid Chinese workers. Overpaid Greek workers. Georg... mais »
violence, gender...
Male sex drive 'to blame for world's conflicts'The male sex drive is to blame for most of the world's conflicts from football hooliganism to religious disputes and even world wars, according to scientists. By Nick Collins, Science Correspondent [image: Male sex drive 'to blame for world's conflicts'] Men are programmed to be aggressive towards anyone they view as an outsider Photo: REX FEATURE The "male warrior" instinct means that men are programmed to be aggressive towards anyone they view as an outsider, a study claims. In evolutionary terms an instinct for violence against others... mais »
Futurology
[image: Robot] Twenty top predictions for life 100 years from now Continue reading the main story In today's Magazine - How do Australians respond to shark attacks? - Hymn to the birds and trees - Three decades hiding in the Guam jungle - What do Scottish Americans think of independence? Last week we asked readers for their predictions of life in 100 years time. Inspired by ten 100-year predictions made by American civil engineer John Elfreth Watkins in 1900, many of you wrote in with your vision of the world in 2112. Many of the "strange, almost impossible" predictions... mais »
Preventable Risk Factors for NCD
Adult Mortality Attributable to Preventable Risk Factors for Non-Communicable Diseases and Injuries in Japan: A Comparative Risk Assessment *1* Department of Global Health Policy, Graduate School of Medicine, University of Tokyo, Tokyo, Japan, *2* Epidemiology and Prevention Division, Research Center for Cancer Prevention and Screening, National Cancer Center, Tokyo, Japan, *3* Department of Social and Environmental Medicine, Osaka University Graduate School of Medicine, Osaka, Japan, *4* International University of Health and Welfare Graduate School, Tokyo, Japan, *5* Kitasato Cli... mais »
Thirdhand Smoke
'Thirdhand Smoke' May Be Bigger Health Hazard Than Previously Believed ScienceDaily (Jan. 12, 2011) — Scientists are reporting that so-called "thirdhand smoke" -- the invisible remains of cigarette smoke that deposits on carpeting, clothing, furniture and other surfaces -- may be even more of a health hazard than previously believed. The study, published in ACS' journal,*Environmental Science & Technology*, extends the known health risks of tobacco among people who do not smoke but encounter the smoke exhaled by smokers or released by smoldering cigarette butts./.../ *Scientists are ... mais »
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