الأحد، 5 أبريل 2015

ScienceDaily: Top News

ScienceDaily: Top News

Theoretical study suggests huge lava tubes could exist on moon

Posted: 04 Apr 2015 06:53 PM PDT

Lava tubes large enough to house cities could be structurally stable on the moon, according to a theoretical study.

Reef fish can adjust sex ratios as oceans warm

Posted: 04 Apr 2015 06:34 PM PDT

Using a multigenerational experiment research has shown for the first time that when reef fish parents develop from early life at elevated temperatures they can adjust their offspring's sex through non-genetic and non-behavioral means.

97% of Northwest Alaska bird, mammal species could experience habitat change from warming climate

Posted: 03 Apr 2015 08:37 PM PDT

Of the 201 bird and mammal species that call northwest Alaska's arctic and subarctic region their home, 195 of them -- or, roughly, 97 percent -- could experience some form of habitat loss or gain stemming from climate change, a new study has found.

New evidence shows carbon's importance to ocean life's survival 252 million years ago

Posted: 03 Apr 2015 08:37 PM PDT

A new study shows for the first time how carbon offered a mode of survival for some ocean life after one of the greatest mass extinctions in the history of Earth.

Physicists create new molecule with record-setting dipole moment

Posted: 03 Apr 2015 08:37 PM PDT

A proposed pathway to construct quantum computers may be the outcome of research by a physics team that has created a new molecule based on the interaction between a highly-excited type of atom known as a Rydberg atom and a ground-state atom. A unique property of the molecule is the large permanent dipole moment, which reacts with an electric field much like a bar magnet reacts with a magnetic field.

Heading off concussions in water polo

Posted: 03 Apr 2015 08:36 PM PDT

A novel probe will be investigating impact injuries in water polo. The goal of the three-pronged study – aided by the popular sport's national governing body – is to compile scientific data on risk, prevalence and protection.

One dollar blood test using gold nanoparticles outperforms PSA screen for prostate cancer, study suggests

Posted: 03 Apr 2015 10:08 AM PDT

A test that uses gold nanoparticles to detect early-stage prostate cancer costs less than $1, returns results in minutes and is more accurate than standard PSA screening, pilot studies show. The new technique leverages the ability of gold nanoparticles to attract cancer biomarkers.

A complex landscape has both vulnerabilities and resilience to climate change

Posted: 03 Apr 2015 06:59 AM PDT

In Central Appalachia, changes in precipitation and temperatures are likely to reduce habitat suitability for some tree species, including iconic species such as American beech, eastern hemlock, eastern white pine, red spruce, and sugar maple. Species with ranges that extend largely to the south -- such as eastern red cedar, post oak, and shortleaf pine - may have increases in suitable habitat and biomass as the region warms.

Stem cells age-discriminate organelles to maintain stemness

Posted: 02 Apr 2015 01:18 PM PDT

A study suggests that asymmetric apportioning of old cellular components during cell division may represent an anti-aging mechanism by stem cells.
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