A comienzos de enero de 2008, durante la violencia que azotó a Kenia luego de unas disputadas elecciones generales, un hombre golpeó la puerta de la casa de Lucia Wakonyo, en el tugurio capitalino de Mathare. “Él preguntaba por mi vecino, y yo le dije que no estaba. Me rogó que le diera refugio”,...

Usada por los médicos desde 1950 para tratar su deficiencia en niños y adolescentes, la hormona del crecimiento podría llegar a ser utilizada ahora para el tratamiento de la diabetes tipo 1. Los resultados han sido publicados en la revista PNAS. Fuente :...

A multi-university research team, including researchers with the Fralin Life Science Institute at Virginia Tech, discovered that the unique physical differences among brain tumor cells were because of chromosomal abnormalities. Fuente : http://www.eurekalert.org/pub_releases/2014-01/vt-...

Could the quality of your attachment to your parents affect your own child's risk for obesity? A new University of Illinois study says it can. Fuente : http://www.eurekalert.org/pub_releases/2014-01/uoi...

Rice University scientists time "hot" electrons as they transfer from excited plasmons in gold nanorods to graphene. Fuente : http://www.eurekalert.org/pub_releases/2014-01/ru-...

A group of researchers focused on sustainable practices, geography and earth sciences found something unexpected during their work in Central America: the effects of drug trafficking are leaving deep scars on a sensitive landscape. They call the phenomenon "narco-deforestation," and the result is...

BYU business professor Peter Madsen has been researching how NASA recognizes "near-miss" events ever since the Columbia shuttle was destroyed in flight 11 years ago Saturday. A new study coauthored by Madsen finds recognition of near-misses goes up when leaders emphasize project significance and...

Children with depression are more likely to be obese, smoke and be inactive, and can show the effects of heart disease as early as their teen years, according to a newly published study by University of South Florida associate professor of psychology Jonathan Rottenberg. Fuente :...

Rhode Island Hospital researchers have identified components in Clostridium difficile (C. diff) that may lead to new diagnostic tools, and ultimately more timely and effective treatment for this often fatal infection. C. diff is a spore-forming bacterium that causes severe diarrhea and is...

Local communities can expect the number and asset size of philanthropic foundations to increase, due to the rise in health care consolidations driven by health care reform. In the past, assets of this kind may have been underused and at times, even undocumented. A new database of such foundations...

Researchers at the California Institute of Technology are the first to have utilized high-resolution electron microscopy to look at HIV infection within the actual tissue of an infected organism, providing perhaps the most detailed characterization yet of HIV infection in the gut. Fuente :...

Do not smoke and do not allow yourself to be exposed to smoke because second-hand smoke and third-hand smoke are just as deadly as first-hand smoke, says a scientist at the University of California, Riverside who, along with colleagues, conducted the first animal study of the effects of third-hand...

Reducir la pobreza, el hambre y las desigualdades fue el compromiso colectivo asumido por los jefes de Estado y de gobierno en la  II Cumbre de la Comunidad de Estados Latinoamericanos y Caribeños (Celac), junto con la declaración de la región como una “zona de paz”. Ese mandato, considerado “ambicioso” por los propios...

El seguimiento de 3.500 crías de pingüino de Magallanes entre 1983 y 2010 en Punta Tombo (Argentina) ha demostrado que cada año el 7% murió por hipotermia al empaparse por causa de las lluvias. Las tormentas son cada vez más frecuentes e intensas en esta región. Fuente :...

Neue Gene oder größere genetische Veränderungen spielen offenbar eine wichtige Rolle bei der Entwicklung von Ameisenstaaten mit ihren unterschiedlichen Kasten. Darauf deutet eine Untersuchung von Evolutionsbiologen an der Johannes Gutenberg-Universität Mainz (JGU) hin. Dr. Barbara Feldmeyer vom...

Novel or highly modified genes play a major role in the development of the different castes within ant colonies. Evolutionary biologists at Johannes Gutenberg University Mainz (JGU) came to this conclusion in a recent gene expression study. Dr. Barbara Feldmeyer and her colleagues at the JGU...

Alcanza con una leve cobertura de agua salada para que la tierra se vuelva estéril, por lo que Mohammad Saeed vigila de cerca el mar, que avanza año tras año hacia su predio de dos hectáreas, en el norte de Egipto. El joven agricultor, cuyo campo de tréboles se extiende a apenas 400 metros de […]El artículo El delta del...

Activistas y legisladores instan al gobierno de Estados Unidos a que exija a las compañías una mayor transparencia en su cadena de suministros, con el objetivo de frenar la trata de seres humanos. Se estima que entre 14.000 y 17.000 personas al año son ingresadas a este país contra su voluntad o engañadas, y que […]El...

Investigadores de la Universidad de Gotemburgo muestran que ratones con cáncer de pulmón desarrollan los tumores más agresivos y mueren más rápidamente cuando su dieta se complementa con antioxidantes. Los resultados, publicados en la revista Science Translational Medicine, han sido confirmados en...

Los restos de ADN neandertal en los humanos modernos –del que se mantiene hasta un 20%– están implicados con genes que afectan tanto a diversas enfermedades, como la de Crohn, como en otros aspectos relacionados con la adaptación al medio, como la producción de queratina. Estas son las principales...

Un equipo internacional de astrofísicos ha cartografiado las zonas claras y oscuras de Luhman 16B, la enana marrón más cercana a la Tierra. Se trata del primer mapa del tiempo atmosférico en objetos de este tipo. Las observaciones del telescopio VLT del Observatorio Europeo Austral (ESO) han...

Combination treatment more than halves mortality rates for prostate cancer, reports Dagens Medisin, a Norwegian health journal. Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Chief Executive of the Economic and Social Research Council and President of Science Europe, Professor Paul Boyle FBA FRSE, to succeed Professor Sir Bob Burgess Kt., DL, AcSS Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...

Expansion in the use of Percutaneous Coronary Intervention (PCI) – the minimally invasive surgery performed on heart patients instead of using drugs – is seeing more patients with acute coronary syndromes treated more quickly, according to the latest National Audit of PCI (covering 2012). Fuente :...

Previous studies have shown that breast cancer survivors who meet the current exercise recommendations (2.5 hours of moderate intensity physical activity per week) are at 25 percent lower risk for dying from breast cancer. New research suggests that exceeding the recommendations may provide greater...

We've all heard about circadian rhythm, the roughly 24-hour oscillations of biological processes that occur in many living organisms. Yet for all its influence in many aspects of our lives -- from sleep to immunity and, particularly, metabolism -- relatively little is understood about the mammalian...

Researchers have developed a new computer algorithm that predicts which metabolic genes are lethal to cells when overproduced. Their findings could help guide metabolic engineering to produce new chemicals and drugs in more cost-effective ways. Fuente :...

Scientists have identified how a single gene in honey bees separates the queens from the workers. A team of scientists unraveled the gene's inner workings. The gene, which is responsible for leg and wing development, plays a crucial role in the evolution of bees' ability to carry pollen. Fuente :...

People are much more likely to decide to donate a kidney to a stranger -- an extraordinarily altruistic act -- in areas of the United States where levels of well-being are high, according to a new study published. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/4...