Лип
18
2017
The survival of the cell is -- apart from other important aspects -- a question of timing. Scientists have now identified the different parts of this mechanism and introduced a model of the process.
Статті
Young adult obesity: A neglected, yet essential focus to reverse the obesity epidemic
Лип
18
2017
The overall burden of the US obesity epidemic continues to require new thinking, argues an expert in a new report.
Reducing hospital readmissions does not increase mortality rates
Лип
18
2017
Recent advances in reducing hospital readmission rates for three key medical conditions occurred without causing an increase in death rates, according to a new study.
New bacterial defense mechanism of the CRISPR-Cas system uncovered
Лип
18
2017
Researchers have found an unprecedented defense mechanism by which bacteria defend themselves against invading viruses. When the bacterial immune system gets overwhelmed, the CRISPR-Cas system produces a chemical signal that activates a second enzyme which helps in degrading the invaders' genetic material. This process is very similar to an antiviral mechanism of the human innate immune system.
A tale of two fishes: Biologists find male, female live-bearing fish evolve differently
Лип
18
2017
Male and female live-bearing fish evolve differently: female evolution is influenced more strongly by natural selection, while male evolution is influenced more strongly by sexual selection, according to new research.
Ancient, massive asteroid impact could explain Martian geological mysteries
Лип
18
2017
A colossal impact with a large asteroid early in Mars' history may have ripped off a chunk of the northern hemisphere and left behind a legacy of metallic elements in the planet's interior. The crash also created a ring of rocky debris around Mars that may have later clumped together to form its moons, Phobos and Deimos.
Non-toxic alternative for next-generation solar cells
Лип
18
2017
Researchers have demonstrated how a non-toxic alternative to lead could form the basis of next-generation solar cells.
Fused imaging reveals 16th-century writing hidden inside bookbinding
Лип
18
2017
By fusing visible hyperspectral imaging with X-ray fluorescence, researchers have safely revealed Roman law code hidden inside of a 16th century bookbinding.
Environmental pollution exposure during pregnancy increases asthma risk for three generations
Лип
18
2017
Exposure to environmental pollutants during pregnancy may increase the risk of asthma for as many as three consecutive generations, according to new research.