The underlying architecture of a cellular signaling complex involved in the body's response to stimuli such as light and pain has been determined by a team of researchers. This complex, consisting of a human cell surface receptor and its regulatory protein, reveals a two-step mechanism that has been hypothesized previously but...
Variations in high-altitude wind patterns expose particular parts of Europe, Asia and the US to different extreme weather conditions, a new study has shown. Changes to air flow patterns around the Northern Hemisphere are a major influence on prolonged bouts of unseasonal weather -- whether it be hot, cold, wet or dry. Fuente :...
El presidente de la Comisión Europea y la reina de Dinamarca han inaugurado la sexta edición del Euroscience Open Forum (ESOF) la bienal dedicada a la investigación científica, la tecnología y la innovación. Bajo el lema de 'Ciencia, construyendo puentes', hasta el próximo viernes ...
Un equipo del Centro Nacional de Investigaciones Cardiovasculares (CNIC) ha descubierto que el microambiente que controla las células madre hematopoyéticas puede ser una diana terapéutica para enfermedades mieloproliferativas. Los autores del trabajo, publicado en Nature, han desarrollado un...
In the nearly 25 years since the launch of the Hubble Space Telescope (HST), astronomers and the public alike have enjoyed ground-breaking views of the cosmos and the suite of scientific discoveries that followed. The successor to HST, the James Webb Telescope should launch in 2018 but will have a...
In the nearly 25 years since the launch of the Hubble Space Telescope (HST), astronomers and the public alike have enjoyed ground-breaking views of the cosmos and the suite of scientific discoveries that followed. The successor to HST, the James Webb Telescope should launch in 2018 but will have a...
The use of advanced CT scanning equipment is helping to address the important concern of patient exposure to radiation. The study results provide information that will help in setting standards for radiation safety quality control in cardiovascular imaging. Fuente :...
Maternal use of a class of antidepressants called selective serotonin reuptake inhibitors, or SSRIs, resulted in increased fat accumulation and inflammation in the liver of the adult offspring, researchers have demonstrated for the first time in an animal model. This raises new concerns about the...
Spiral ganglion cells are essential for hearing and their irreversible degeneration in the inner ear is common in most types of hearing loss. Adult spiral ganglion cells are not able to regenerate. However, new evidence in a mouse model shows that spiral ganglion stem cells present in the inner ear...
Evalúan eficacia de un medicamento que previene la enfermedad, incluso su variante hemorrágica. Luego de 20 años de investigación, se logró el desarrollo de una vacuna contra los cuatro serotipos de dengue que ya fue probada en varios países de Asia-Pacífico y América Latina, entre ellos México. El...
Ya pasaron tres años desde el terremoto y el subsiguiente tsunami que dañaron cuatro reactores de la planta nuclear de Fukushima Daiichi, en Japón. Pero las consecuencias se siguen sufriendo por la continua fuga de radiactividad al ambiente, alertó el consultor independiente en energía atómica...
A research team describes a gene called Snf2h, which is found in our brain's neural stem cells and functions as a master regulator. When they removed this gene early on in a mouse's development, its cerebellum only grew to one-third the normal size. It also had difficulty walking, balancing and...
Un atentado suicida acabó este viernes 20 con un período de frágil calma en el dividido Líbano, que teme que los conflictos en Siria e Iraq repercutan en toda la región, mientras facciones yihadistas lideran una insurrección sunita contra el gobierno de Iraq dominado por los chiítas. El avance...
Dilema Veche, Bucarest – En opinión del escritor rumano Bogdan Ghiu, Europa se pierde, inmersa en la "autorreferencialidad". Expone además que su renacimiento solo puede proceder de las culturas “periféricas”, cuya evolución hacia Europa aún es reciente. Ver más. Fuente :...
The pursuit of extreme wealth by top managers can lead to lower performance and loss of shareholder value, a new study finds. But, a powerful board or long CEO tenure can moderate the impact. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/B...
NASA has selected 18 proposals for studies under the Asteroid Redirect Mission Broad Agency Announcement (BAA). These six-month studies will mature system concepts and key technologies and assess the feasibility of potential commercial partnerships to support the agency's Asteroid Redirect Mission,...
Researchers have developed a simple, scalable method of making graphene oxide fibers that are strong, stretchable and can be easily scrolled into yarns with strengths approaching that of Kevlar. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/s...
El gobierno de Teherán reclama que la Agencia Internacional de Energía Atómica (AIEA) finalice la investigación del desarrollo de Irán de detonadores de explosivos que podría indicar un programa secreto de armas nucleares, según esa institución. El director general de la AIEA, Yukiya Amano, se...
Los resultados de un estudio liderado por investigadores del proyecto europeo SOPHIE en Barcelona indican que las mejoras integrales de renovación urbana repercuten positivamente en la salud de los ciudadanos. Fuente : http://www.agenciasinc.es/Noticias/La-salud-de-la-...
Many pathogenic bacteria use special secretion systems to deliver toxic proteins into host cells. Researchers have determined the structure of a crucial part of one of these systems -- which are possible targets for novel antibiotics. Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/q...
The first of its kind research is out showing who is having early elective deliveries between 37 and 39 weeks gestation, and whether these deliveries happen following labor induction or cesarean. Labor induction or cesarean delivery without medical reason before a baby is considered full-term at 39...
Teens who use menthol cigarettes smoke more cigarettes per day than their peers who smoke non-menthols, says a new study. The findings mark the first time that menthol cigarettes have been directly linked to elevated nicotine addiction among youth. "The appeal of menthol cigarettes among youth...
The long-term future of emperor penguins is becoming more clear, thanks to new research showing that the penguins may be behaving in ways that allow them to adapt to their changing environment better than expected. Researchers have long thought that emperor penguins were philopatric, which means...
Physicists are using equations to reveal the hidden complexities of the human body. From the beating of our hearts to the proper functioning of our brains, many systems in nature depend on collections of 'oscillators'; perfectly-coordinated, rhythmic systems working together in flux, like the...
CommNet is today launching its Impact Awards for projects that have demonstrated excellence in communication of EU-funded research in the fields of food, agriculture and forestry, fisheries and aquaculture, and biotechnology. Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...
Storytelling with Kylie the fish and effective outreach also on the agenda, courtesy of CommNet Fuente : http://www.alphagalileo.org/ViewItem.aspx?ItemId=1...
Physicists are using equations to reveal the hidden complexities of the human body. From the beating of our hearts to the proper functioning of our brains, many systems in nature depend on collections of ‘oscillators’; perfectly-coordinated, rhythmic systems working together in flux, like the...
Sudden allergic reactions can be fatal. The most common triggers of such reactions, also known as anaphylaxis, are wasp and bee venoms, legumes (pulses), animal proteins, and analgesics (painkillers). The incidence of anaphylaxis is age-dependent. In the current issue of Deutsches Ärzteblatt...
Although significant progress has been made over the last 25 years to identify genetic abnormalities associated with congenital myasthenic syndromes (CMS), many patients remain genetically undiagnosed. A report in the inaugural issue of the Journal of Neuromuscular Diseases identifies a gene defect...
Dos hombres se besan mientras una pareja de mujeres baila con soltura sin incomodar a la clientela del club privado Humboldt 67, uno de los locales que vio un filón comercial en la insatisfecha demanda de espacios recreativos para el colectivo LGBTI en la capital de Cuba. Las fiestas para...
El poeta, recientemente galardonado con el Premio Internacional Manuel Acuña de Poesía, conversa en la siguiente entrevista sobre sus dos últimas obras