Seleção de grupo
Selecionado pela AMICOR Maria Inês Reinert Azambuja
O gene altruísta *Guerra acadêmica sobre a evolução da ética* *RESUMO* O biólogo americano E. O. Wilson causa celeuma ao argumentar, em livro, em favor da "seleção de grupo", forma de seleção natural que afeta grupos, e não indivíduos. Ao minimizar importância da tradicional "seleção de parentesco", Wilson propõe uma nova visão sobre a trajetória evolutiva de insetos e humanos. *REINALDO JOSÉ LOPES* *ILUSTRAÇÕES ANDRÉ FARKAS* *EDWARD OSBORNE* Wilson, 82, nunca foi um sujeito modesto, embora quase todos os que o conhecem façam questão de louvar a gentileza um tanto antiquada do biólo... mais »
Sem título
*10 best resources for evidence-informed **health policy making* Kaelan A Moat et al. *Corresponding author. McMaster University, 1280 Main St. West, CRL-209, Hamilton, ON, Canada L8S 4K1. Keywords Decision making, dissemination, evidence-based policy, research to policy, health policy *Introduction* The incorporation of relevant high quality research evidence into the policy-making process has been outlined as a key strategy to improve health systems worldwide (World Health Organization 2004; Lavis et al. 2006). This thinking was reflected in 2005 at the World Health Assembly, when ... mais »
health key to sustainable development
Rio+20 declares health key to sustainable development Statement 22 June 2012 The United Nations Conference on Sustainable Development (Rio+20) has adopted a series of measures that have the potential to contribute to a more equitable, cleaner, greener, and more prosperous world – and recognizes the important linkages between health and development. Health linked to sustainable development "The Future We Want" conference outcome document, agreed upon by member states attending the 20-22 June conference, highlights the fact that better health is a “precondition for, an outcome of, and a... mais »
Gigapixel camera
A 50 gigapixel camera five times better than 20/20 human visionJune 21, 2012 Traffic circle captured using AWARE-2 (credit: Duke University Imaging and Spectroscopy Program) By synchronizing 98 tiny cameras in a single device, engineers from Duke University and the University of Arizona have created a prototype camera that could capture up to 50 gigapixels of data (50,000 megapixels) and images with unprecedented detail. The AWARE-2 camera’s resolution is five times better than 20/20 human vision over a 120 degree horizontal field. By comparison, most consumer cameras are capable of t... mais »
unzipping DNA
Researchers find gold nanoparticles capable of ‘unzipping’ DNAJune 21, 2012 As the gold nanoparticles cluster together, they pull the strands of DNA apart (credit: NCSU) New research from North Carolina State University finds that gold nanoparticles with a slight positive charge work collectively to unravel DNA’s double helix — a finding with ramifications for gene therapy research and the emerging field of DNA-based electronics. The research team introduced gold nanoparticles, approximately 1.5 nanometers in diameter, into a solution containing double-stranded DNA. The nanoparticles... mais »
neuron ‘jungle’
Simple mathematical pattern describes shape of neuron ‘jungle’ Follows a power law June 22, 2012 Neuron shape model: target points (red) distributed in a spherical volume and connected to optimize wiring in a tree (black) (credit: H. Cuntz et al./PNAS) University College London (UCL) neuroscientists have found thatthere is a simple pattern that describes the tree-like shape of all neurons. Neurons look remarkably like trees, and connect to other cells with many branches that effectively act like wires in an electrical circuit, carrying impulses that represent sensation, emotion, thoug... mais »
India: Free medicines
*Free medicines for all from October* Kounteya Sinha, TNN | Jun 23, 2012, 01.51AM IST NEW DELHI: India's ambitious policy to provide free medicines to all patients attending a government health facility across the country will be rolled out from October. Strongly backed by Prime Minister Manmohan Singh himself, the free-medicines-for-all scheme — being referred to as the "real game changer" — has received its first financial allocation from the Planning Commission for 2012-13. /.../
Earth: History
The History of EarthEarth is believed to be 4.5 to 5 billion years old and was probably formed along with the rest of the solar system when a dusty nebula coalesced into distinct planetary bodies. Since its creation, Earth has endured numerous transformations and catastrophes, geological and biological alike. Though life on the planet arose roughly 3.5 billion years ago, humans appeared only relatively recently. What planet may have long ago collided with Earth, ejecting enough material into space to form the Moon? More...
Novel Protein : Alzheimer's Vaccine
June 21, 2012 — A neuronal protein may offer a potential target for immunization against Alzheimer's disease (AD), new research suggests. According to investigators from the University of Zurich, ankyrin G (ankG) may represent a novel target for AD immunotherapy. "We showed that a pathological extracellular deposition of the neuronal protein ankG evokes the production of antibodies in patients with AD, which may reduce the level of beta-amyloid and its related neurological disease," Antonella Chadha Santuccione, MD, of the Division of Psychiatry Research, University of Zurich, in Swi... mais »
BP Drug Linked to 'Gluten Sensitivity'
Symptoms mimicking gluten sensitivity (celiac disease) may occur in some patients treated with *olmesartan (Benicar)*, a commonly prescribed hypertension medication. Full story/../
Microbe in Colon Cancer
*Fusobacterium nucleatum* infection is prevalent in human colorectal carcinoma 1. Mauro Castellarin1,2,6, et al. Next Section Abstract An estimated 15% or more of the cancer burden worldwide is attributable to known infectious agents. We screened colorectal carcinoma and matched normal tissue specimens using RNA-seq followed by host sequence subtraction and found marked over-representation of *Fusobacterium nucleatum* sequences in tumors relative to control specimens. *F. nucleatum* is an invasive anaerobe that has been linked previously to periodontitis and appendicitis, but... mais »
Addiction & Love
I want to know where love is: Research develops first brain map of love and desire June 20, 2012 in Psychology & Psychiatry *Thanks to modern science, we know that love lives in the brain, not in the heart. But where in the brain is it – and is it in the same place as sexual desire? A recent international study is the first to draw an exact map of these intimately linked feelings.* Somewhat surprisingly, this area of the striatum is also the part of the brain that associated with drug addiction. Pfaus explains there is good reason for this. "Love is actually a habit that is formed fr... mais »
Interactivities
*Selecionado pelas AMICOR Anne Schneider e Maria Inês Reinert Azambuja* *The Scale of the Universe* *Zoom and perspective...*
Medicine and Epidemiology
*Selected by the AMICOR Maria Ines Reinert Azambuja *The Burden of Disease and the Changing Task of Medicine David S. Jones, M.D., Ph.D., Scott H. Podolsky, M.D., and Jeremy A. Greene, M.D., Ph.D. N Engl J Med 2012; 366:2333-2338June 21, 2012 Comments open through December 31, 2012 ArticleReferencesComments Interactive Graphic [image: Top 10 Causes of Death in the United States, 1900–2010.] Top 10 Causes of Death in the United States, 1900–2010. At first glance, the inaugural 1812 issue of the *New England Journal of Medicine and Surgery, and the Collateral Branches of Science*seems re... mais »
Alzheimer and Delirium
*Adverse Outcomes After Hospitalization and Delirium in Persons With Alzheimer Disease* *Tamara G. Fong, MD, PhD; Richard N. Jones, ScD; Edward R. Marcantonio, MD, SM; Douglas Tommet, MS; Alden L. Gross, PhD, MHS; Daniel Habtemariam, BA; Eva Schmitt, PhD; Liang Yap, PhD; and Sharon K. Inouye, MD, MPH* *Ann Intern Med*. 19 June 2012;156(12):848-856 Hospitalization, frequently complicated by delirium, can be a life-changing event for patients with Alzheimer disease (AD) . *Objective:* To determine risks for institutionalization, cognitive decline, or death associated with hospitaliz... mais »
Hmm
[image: man thinking] *Make money with your site* *Affiliate program already in over 24,000 websites. Add web search to your site and add content! We pay for quality searches and clicks on text ads conducted from your website surfers.* *http://www.pay-per-search.com/* *Ad* *CREDIT: Image via Shutterstock View full size image * *Why do we say Hmm while thinking?* * * *Hmm *— or sometimes *hm* or*hmmm *— ranks among the words we English speakers say the most, and yet we give it scant thought. It's never defined for us as children, is left out of all but the fattest dictionaries and see... mais »
Rio + 20: Equity
A week before the Rio +20 World Conference, the Director of the Pan American Health Organization, Dr. Mirta Roses Periago, called on governments, academia and social groups to consider the importance of equity and health systems in reducing inequalities for integral human development. Road to Rio +20: The Importance of Health and Equity to Ensure a Sustainable Development[image: Print][image: E-mail] *Links:* - http://new.paho.org/tierra - http://www.paho.org - http://www.facebook.com/PAHO.Rio20 - http://twitter.com/ToolkitDS
Our Earliest Memories
The Makings of Our Earliest MemoriesBy PERRI KLASS, M.D. Joyce Hesselberth Like many other pediatricians, I do not wear a white coat. Many of us believe that babies and small children suffer from a special form of “white coat syndrome,” that mix of trepidation and anxiety that some adults experience — to the point of high blood pressure — in a medical setting. The pediatric version is easy to diagnose: Doctor in white coat walks into room, kid starts to cry. I worry that a child like this has recalled shots or an unpleasant ear check and has connected that memory to a particular gar...mais »
Weight of the World
[image: George Doyle / Getty Images] GEORGE DOYLE / GETTY IMAGES Weight of the World: Globally, Adults Are 16.5 Million Tons Overweight Researchers say that rising rates of overweight and obesity — especially in the U.S. — will threaten the world's food security and environmental resources. By ALEXANDRA SIFFERLIN | @acsifferlin | June 18, 2012 | 19 Collectively, the entire adult population of the world weighs about 316 million tons, or 633 billion pounds. About 16.5 million tons of that weight is due to overweight, according to data from the United Nations and World Health Organizatio... mais »
Protein Cleaning
The Body’s Protein Cleaning Machine By CLAUDIA DREIFUS Published: June 18, 2012 Enlarge This ImageWhen Dr. Avram Hershko, 74, a biochemist at the Technion-Israel Institute of Technology in Haifa and a winner of the 2004 Nobel Prize in Chemistry, was recently asked to name the most important fact of his life, he answered: “That I love my three grandchildren. For two, three days every week, I take them to dance class, sport and school. I am completely in their lives.” Technion-Israel Institute of Technology Avram Hershko, of the Technion-Israel Institute of Technology. Among top scien... mais »
Human Microbioma
Tending the Body’s Microbial Garden By CARL ZIMMER Published: June 18, 2012 Enlarge This ImageFor a century, doctors have waged war against bacteria, usingantibiotics as their weapons. But that relationship is changing as scientists become more familiar with the 100 trillion microbes that call us home — collectively known as the microbiome. Hank Osuna
Alzheimer's risk gene
Alzheimer's risk gene disrupts brain function in healthy older women, but not menJune 12, 2012 in Alzheimer's disease & dementia *A team led by investigators at the Stanford University School of Medicine has found that the most common genetic risk factor for Alzheimer's disease disrupts brain function in healthy older women but has little impact on brain function in healthy, older men. Women harboring the gene variant, known to be a potent risk factor for Alzheimer's disease, show brain changes characteristic of the neurodegenerative disorder that can be observed before any outward ... mais »
Freud's theory of unconscious
Freud's theory of unconscious conflict linked to anxiety symptoms in new brain researchJune 17, 2012 in Psychology & Psychiatry *An experiment that Sigmund Freud could never have imagined 100 years ago may help lend scientific support for one of his key theories, and help connect it with current neuroscience.* Today at the 101st Annual Meeting of the American Psychoanalytic Association, a University of Michigan professor who has spent decades applying scientific methods to the study of psychoanalysis will present new data supporting a causal link between the psychoanalytic concept kn... mais »
Human Microbiome
Structure, function and diversity of the healthy human microbiome - The Human Microbiome Project Consortium - Affiliations - Contributions - Corresponding author Nature 486, 207–214 (14 June 2012) doi:10.1038/nature11234Received 02 November 2011 Accepted 16 May 2012 Published online 13 June 2012 Abstract - Abstract - Introduction - Microbial Diversity Of Healthy Humans - Carriage Of Specific Microbes - Microbiome Metabolism And Function - Correlations With Host Phenotype - Conclusions - Methods - References - Acknowledgements ... mais »
Rio +20
Science in play as countries struggle over Rio accord The 2012 Earth Summit is less than four days out, and nobody appears to have any idea how things are going to come together. The goals are hardly ambitious: produce a simple statement regarding humanity’s commitment to sustainable development./.../t,
Unreachable mind?
Neuroscience: The mind reader Adrian Owen has found a way to use brain scans to communicate with people previously written off as unreachable. Now, he is fighting to take his methods to the clinic. - David Cyranoski 13 June 2012 JOHN HRYNIUK Article tools - Adrian Owen still gets animated when he talks about patient 23. The patient was only 24 years old when his life was devastated by a car accident. Alive but unresponsive, he had been languishing in what neurologists refer to as a vegetative state for five years, when Owen, a neuro-scientist then at the University ... mais »
cérebro jovem
*Selecionado pela AMICOR Mariana Lourenço de Lima Carneiro* * ** * *João Érico, Luís Gustavo e Mariana Brasília/DF* http://noticias.uol.com.br/ultnot/cienciaesaude/ultnot/2009/03/26/ult4477u1470.jhtm ** *Para manter o cérebro jovem, é preciso manter a serenidade* *Por Cristina Almeida Especial para o UOL Ciência e Saúde* ** *O segredo para o cérebro jovem é manter-se tranquilo e ativo, mesmo depois da aposentadoria. Esse é o conselho do professor de neurologia Cícero Galli Coimbra, da Universidade Federal de São Paulo (Unifesp). Além disso, ele diz que é importante que a pessoa esteja e... mais »
Distribuição do poder...
[image: Poder9_n.jpg] *Enviado pela AMICOR Maria Inês Reinert Azambuja*
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