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Friday, August 17, 2018

Mapping the ‘dark matter’ of human DNA

Although our knowledge of the human DNA is extensive, it is nowhere near complete. For instance, our knowledge of exactly which changes in our DNA are responsible for a certain disease is often insufficient. This is related to the fact that no two people have exactly the same DNA. Even the DNA molecules of identical twins have differences, which occur during their development and ageing. Some differences ensure that not everybody looks exactly alike, while others determine our susceptibility to particular diseases. Knowledge about the DNA variants can therefore tell us a lot about potential health risks and is a first step towards personalized medicine. Many small variants in the human genome -- the whole of genetic information in the cell -- have already been documented. Although it is known that larger structural variants play an important role in many hereditary diseases, these variants are also more difficult to detect and are, therefore, much less investigated.

Declaración del portavoz del CSN Ned Price sobre la delegación de EE.UU. a la...

El secretario de estado John Kerry y la administradora de la Agencia de Protección Ambiental Gina McCarthy viajarán a Kigali, Ruanda para promover las metas climáticas y medioambientales de EE.UU. en la próxima reunión de las Partes del Protocolo de Montreal. Source: https://www.epa.gov/

Ribosomal quality control

The assembly of proteins to form larger macromolecular structures within cells is linked to ribosomes and thus to their synthesis through the process of translation. Ribosomes adopt the role of a quality "checkpoint" in this context: They make sure that newly built proteins are directly fed into the production lines of macromolecular complexes.

Harnessing algae for the creation of clean energy

Researchers have revealed how microalgae produce hydrogen, a clean fuel of the future, and suggest a possible mechanism to jumpstart mass production of this environmentally-friendly energy source.

Organic semiconducting polymers can harvest sunlight to split CO2 into alcohol fuels

Chemists have been the first to demonstrate that an organic semiconductor polymer called polyaniline is a promising photocathode material for the conversion of carbon dioxide into alcohol fuels without the need for a co-catalyst.

Scientists search for regional accents in cod

Fish may have regional accents and communicate differently in different parts of the world, according to a fish expert.

Fast energy transport between unlike partners

Chemists have combined different dye molecules in aggregates and thereby observed surprising properties. Their discovery may help to use sunlight more efficiently for the generation of energy.

Efficient organic solar cells with very low driving force

Organic solar cells have now been developed with a significantly lower driving force and faster charge separation than previous cells, report scientists.

Exhaling Earth: Scientists closer to forecasting volcanic eruptions

On average, 40 volcanoes on land erupt into the atmosphere each month, while scores of others on the seafloor erupt into the ocean. A new time-lapse animation uniting volcanoes, earthquakes, and gaseous emissions reveals unforgettably the large, rigid plates that make the outermost shell of Earth and suggests the immense heat and energy beneath them seeking to escape.

Satellites see Hurricane Matthew heading for the Bahamas

Satellites from NASA and NOAA have been tracking and analyzing powerful Hurricane Matthew since its birth just east of the Leeward Islands on Sept. 28. On October 4, 2016, Hurricane Matthew made landfall on southwestern Haiti as a category-4 storm -- the strongest storm to hit the Caribbean nation in more than 50 years.

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Serena Williams supo que el asesino de su hermana estaba libre justo antes de...

La superestrella del tenis Serena Williams dice que supo que el asesino de su hermana había sido liberado minutos antes de su derrota ante Johanna Konta el mes pasado. Fuente: Cnnenespanol.com

Bus accidentado en Ecuador llevaba drogas escondidas, dicen autoridades

Las autoridades hallaron al menos media tonelada de marihuana escondida en el bus que se accidentó en una vía en Ecuador, y se presume que también hay rastros de cocaína, según informó la Fiscalía de Colombia. Fuente: Cnnenespanol.com

El hombre que fue el cerebro de la operación que abatió a Osama bin...

El almirante retirado William McRaven, el hombre que supervisó la incursión de las fuerza.s especiales de los Seal de EE.UU en 2011 y que terminó con la muerte de Osama bin Laden, emitió un asombroso reproche a la decisión del presidente Donald Trump de revocar la autorización de seguridad del exdirector de la CIA John Brennan este jueves, defendiendo a Brennan "uno de los mejores servidores públicos que he conocido" Fuente: Cnnenespanol.com