"La naturaleza es grande en las grandes cosas, pero es grandísima en las más pequeñas" Saint-Pierre (1737-1814)

martes, 22 de julio de 2014

Noticias científicas diarias

- Determinan el impacto que tienen en la función neuronal las alteraciones en la estructura de la cromatina.
Un trabajo en el que han participado investigadores del Consejo Superior de Investigaciones Científicas (CSIC) ha determinado por primera vez el impacto de las alteraciones en la estructura tridimensional de la cromatina neuronal (el complejo de ADN y proteínas que protege la información genética y permite que se exprese de forma adecuada) en la función neuronal y el comportamiento animal. El estudio ha sido publicado en la revista Nature Communications.
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- Seals 'feed' at offshore wind farms, study shows.
Some seals prefer to forage for food at offshore wind farms, a study suggests.

- What if you could edit the genes of animals in the wild--pests like mosquitoes that carry malaria or invasive plants? What happens when those genes are perpetuated in the population?

- Obesity researchers have been studying ways to turn the body’s energy-storing “bad fat” into energy-burning “good fat.” Now, scientists are reporting that the flip side of that approach could address a huge killer of cancer patients—the muscle wasting, emaciation, and frailty known as cachexia, which kills 30% to 80% of people in the advanced stages of cancer.
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- How data will transform science?
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- More than 26 million American adults have chronic kidney disease, it is the 9th leading cause of death in the United States. Chronic kidney disease and osteoporosis: evaluation and management.
More information: http://bit.ly/1manRVi 

- How do the fantastical arch shapes seen in in places like Utah's Arches National Park form? They have long been thought to be sculpted by wind and rain. But a team of researchers now report in Nature Geoscience that the shapes are inherent to the rock itself, and how gravity distributes stress during erosion.
To validate their models, the team exposed 10-centimeter blocks of sandstone from a Czech quarry to erosion by water. The weight distributed itself unevenly, which led to the formation of pillars (one in the first experiment, two in the second) that lasted longer than the surrounding material. The first sequence is a continuous recording of about 90 minutes, accelerated by 200x. The second is accelerated 100x in the first half, followed by two cuts, and the process lasted just over an hour.
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- Providing basic medical services, including polio vaccinations, to children in Pakistan’s poorest and most conflict-ridden areas is the key to ending polio worldwide, argues Zulfiqar Bhutta in a Comment piece in Nature.
   

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