Σάββατο 24 Αυγούστου 2013

ScienceDaily: Top Environment News

ScienceDaily: Top Environment News


Unprecedented control of genome editing in flies promises insight into human development, disease

Posted: 23 Aug 2013 01:38 PM PDT

In an era of widespread genetic sequencing, the ability to edit and alter an organism's DNA is a powerful way to explore the information within and how it guides biological function.

Out of Africa? New bamboo genera, mountain gorillas, and the origins of China's bamboos

Posted: 23 Aug 2013 07:23 AM PDT

African mountain bamboos look like Asian bamboos, with Mountain Gorillas instead of Giant Pandas, but research has shown that they are as different to Asian bamboos as the Gorilla is to the Panda, and they represent two completely new genera. Bamboos evolved in Gondwanaland, and how they reached China is unknown. Like modern humans they could have came 'Out of Africa', but it now seems more likely they were a gift to China from India.

Underwater intelligence: How do you track a fish underwater?

Posted: 23 Aug 2013 06:43 AM PDT

How do you track a fish underwater? Rethinking the traditional, ad hoc approach to acoustic telemetry, scientists have proposed a new state-space model for analyzing fish movement data collected by marine observation networks. Its goal is to quantify the uncertainty associated with this imperfect locating system, and to improve its accuracy.

Sea ice decline spurs the greening of the Arctic

Posted: 23 Aug 2013 06:43 AM PDT

Sea ice decline and warming trends are changing the vegetation in nearby arctic coastal areas, according to scientists.

Architecture of chromosomes: A key for success or failure

Posted: 23 Aug 2013 06:13 AM PDT

Scientists have shown for the first time that chromosomes rearrangements (such as inversions or translocations) can provide advantages to the cells that harbor them depending on the environment to which they are exposed.

Richard III’s skeleton came within inches of destruction

Posted: 23 Aug 2013 06:11 AM PDT

Archaeologists have revealed the bones of Richard III came within inches of destruction.

One mummy, many coffins: Egyptians intended to transform deceased from human to deity

Posted: 23 Aug 2013 06:11 AM PDT

The Egyptian elite was buried in a coffin placed inside another coffin -- in ensembles of up to eight coffins. This was intended to ensure the transformation of the deceased from human to deity, according to an Egyptologist.

Arctic sea ice update: Unlikely to break records, but continuing downward trend

Posted: 23 Aug 2013 06:08 AM PDT

The melting of sea ice in the Arctic is well on its way toward its annual "minimum," that time when the floating ice cap covers less of the Arctic Ocean than at any other period during the year. While the ice will continue to shrink until around mid-September, it is unlikely that this year's summer low will break a new record. Still, this year's melt rates are in line with the sustained decline of the Arctic ice cover observed by NASA and other satellites over the last several decades.

PHS gene prevents wheat from sprouting: Fewer crop losses anticipated

Posted: 20 Aug 2013 08:37 AM PDT

Researchers have found and cloned a gene that prevents wheat from preharvest sprouting. The finding will to be most beneficial to white wheat production, which loses $1 billion annually.

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