Resumo das últimas posagens:
DNA alphabet
Scripps Research Institute study suggests expanding the genetic alphabet may be easier than previously thoughtJune 6, 2012 (Credit: iStockphoto) A new study led by scientists at The Scripps Research Institutesuggests that the replication process for DNA — the genetic instructions for living organisms that is composed of four bases (C, G, A and T) — is more open to unnatural letters than had previously been thought. An expanded “DNA alphabet” could carry more information than natural DNA, potentially coding for a much wider range of molecules and enabling a variety of powerful applica... mais »
Global water and air volume
[image: Global water and air volume] Global water and air volume *E055/0330 Rights Managed* *Credit:* ADAM NIEMAN/SCIENCE PHOTO LIBRARY *Caption:* Global water and air volume. Conceptual computer artwork of the total volume of water on Earth (left) and of air in the Earth's atmosphere (right) shown as spheres (blue and pink). The spheres show how finite water and air supplies are. The water sphere measures 1390 kilometres across and has a volume of 1.4 billion cubic kilometres. This includes all the water in the oceans, seas, ice caps, lakes and rivers as well as ground water, and th... mais »
Depression & dementia
*Midlife vs Late-Life Depressive Symptoms and Risk of Dementia*Differential Effects for Alzheimer Disease and Vascular Dementia Deborah E. Barnes, PhD, MPH; Kristine Yaffe, MD; Amy L. Byers, PhD, MPH; Mark McCormick, MD; Catherine Schaefer, MD; Rachel A. Whitmer, PhD [+] Author Affiliations *Arch Gen Psychiatry*. 2012;69(5):493-498. doi:10.1001/archgenpsychiatry.2011.1481 Text Size: A A A Article Figures Tables References Comments ABSTRACT ABSTRACT | METHODS | RESULTS | COMMENT | CONCLUSIONS | AUTHOR INFORMATION| REFERENCES *Context* Depression and dementia are common in older adults ... mais »
Sem título
Comparações Internacionais sobre o Gasto em Saúde no Brasil *André Medici* *Introdução* Na última quarta-feira, (dia 6 de junho de 2012), o Estadão publicou na página 2 um artigo intitulado *O Brasil deveria gastar mais com saúde?* (1) A presente postagem procura elaborar um pouco mais sobre este artigo e dar algumas evidências estatísticas sobre os argumentos desenvolvidos. Em livro recém publicado (2), argumento que é praticamente impossível saber quanto um país deve gastar com saúde, a menos que estejam respondidas algumas perguntas: Quais as necessidades de saúde da populaç... mais »
Toxic Shock from Strep
Toxic Shock from Strep: a 'Lightning Strike' By Todd Neale, Senior Staff Writer, MedPage Today Published: June 08, 2012 In rare cases, the bacteria responsible for causing strep throat -- group A *Streptococcus*-- can penetrate beyond the superficial surfaces of the body and lead to necrotizing fasciitis, toxic shock syndrome, and even death. But, but because most strep infections are treated easily with antibiotics, there are challenges in identifying which patients will progress to the more severe invasive infections, according to Rodney Willoughby, MD, a pediatric infectious diseas... mais »
Brain Plasticity
The Adolescent Brain "The idea that the brain is somehow fixed in early childhood, which was an idea that was very strongly believed up until fairly recently, is completely wrong. There's no evidence that the brain is somehow set and can't change after early childhood. In fact, it goes through this very large development throughout adolescence and right into the 20s and 30s, and even after that it's plastic forever, the plasticity is a baseline state, no matter how old you are. That has implications for things like intervention programs and educational programs for teenagers."/.../
Sem título
World Population Link [image: World Population Data Sheet 2011] Get PRB E-mail News - [image: Twitter] - [image: Facebook] - [image: iTunes] - [image: YouTube] - WPDS Home - Data Sheet - Video - Interactive Map - Webinar - Population Bulletin Video: 7 Billion and Counting Global population trends result from varying levels of population growth and decline among countries. This informative video provides a simple and compelling overview of population trends that have created a world of 7 billion people. The World at 7 Billion: A PRB Interactiv... mais »
Transplante Cardíaco
*Caros AMICOR,* *Este artigo, publicad na ZH de hoje, foi escrito por um primo meu, filho de um de meus tios médicos - Ary Cechella (1922-1977) - nascido quando eu estava nos primeiros anos da Faculdade. Lembro-me quando ele veio a Porto Alegre trazendo o filho nos braços, com menos de um ano de vida, com dispnéia e o diagnóstico fora de pneumonia. Como ele não melhorasse com os tratamentos, resolveu ministrar-lhe Digitaline Nativelle, com o que ele ficou bem, desenvolveu-se, fez curso superior de educação física e foi atleta, campeão gaúcho de natação. Submeteu-se a um transplante c...mais »
Tree of Life
Assembling, Visualizing and Analyzing a Tree of All Life *National Science Foundation grants will bring together what's known about how species are related* Back to article | Note about images [image: Illustration of a leaf with the words Open Tree of Life.]The "Open Tree of Life" is one of three major new scientific projects funded by the NSF. Credit: *NSF National Evolutionary Synthesis Center* [image: Illustration of the tree of life showing small black line which is ancestor of all life on Earth.]
Heart and Renal Failure
Polymer pills turn out "lytes" in chronic HF with renal disease *B**elgrade, Serbia *- Could plastics at least partly take over the job of diuretics in chronic heart failure? Patients with advanced HF and renal dysfunction who daily swallowed a handful of capsules containing an electrolyte- and fluid-binding polymer showed meaningful gains in symptom and functional status over eight weeks, according to researchers from the small study [1,2]. [image: Dr Maria Rosa Costanzo] Dr Maria Rosa Costanzo "It's almost like giving a sponge that traps the water. And because of the chemical struc... mais »
CVD harms 2nd hand smoke
CVD & Second Hand smoking http://www.world-heart-federation.org/fileadmin/user_upload/documents/Tobacco/ITCWHFBroApr18v2web.pdf **** Hope all is well. Saw Paula Johns at the AHA and she spoke highly of you.** ** Alice**** Alice Grainger Gasser | Project Manager | *World Heart Federation *|* *7, rue des Battoirs |P. O. Box 155 | 1211 Geneva 4 | Switzerland | Phone +41 22 807 03 33 | Fax +41 22 807 03 39 | E-mail alice.graingergasser@worldheart.org | Web www.worldheart.org **** The World Heart Federation is committed to helping people achieve a longer and better life through preventio...mais »
No comments:
Post a Comment