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Tuesday, December 12, 2017

Spinning semen provides a measurement of fertility

The maths of collective behavior has provided a new technique for selecting the best semen for artificial insemination in livestock, new research shows.

Dig it! Two new shrimp species found in burrows at the bottom of the...

Although the Santa María-La Reforma lagoon complex in the Gulf of California is one of the most important areas for shrimp fishery, little is known about the crustacean species that live in burrows dug in the bottom. In addition to presenting two new species for science, the researchers collaborate to build up on the knowledge of small shrimp species living there.

Graphene, electricity used to change stem cells for nerve regrowth

Scientists are combining their expertise to change stem cells for nerve regrowth.

DNA barcoding technology helping monitor health of all-important boreal forest

The Boreal forest is essential to Canada and the world, storing carbon, purifying water and air and regulating climate. But keeping tabs on the health of this vulnerable biome has proven to be a painstaking and time-consuming undertaking - until now. Cutting-edge DNA metabarcoding technology can help speed up and improve the monitoring process, according to a new study.

Extreme fieldwork, climate modeling yields new insight into predicting Greenland’s melt

A new study brings together scientists from land hydrology, glaciology and climate modeling to unravel a meltwater mystery. Researchers discovered that some meltwater from the lakes and rivers atop the region's glaciers, is being stored and trapped on top of the glacier inside a low-density, porous 'rotten ice.' This phenomenon affects climate model predictions of Greenland's meltwater.

EPA and Partners Join White House Officials to Convene First Clean Energy Savings for...

ATLANTA – Today, U.S. Environmental Protection Agency (EPA) and senior Obama Administration officials convened in Spartanburg, S.C., to host a Clean Energy Savings for All Summit – the first of a series planned across the country. Source: https://www.epa.gov/

DNA detectives crack the case on biothreat look-alikes

Biological "detectives" are tracking down biothreats such as the bacteria that causes tularemia ("rabbit fever"), but they constantly face the challenge of avoiding false positives. Sounding the alarm over a bioattack, only to find it's a harmless relative in the same genus, reduces credibility and public trust. New work is narrowing down the confusion over Francisella bacteria, a few species of which include highly virulent human and animal pathogens, fish pathogens, opportunistic human pathogens, tick endosymbionts, and free-living isolates inhabiting brackish water.

Solution blooming for fracking spills?

Wastewater from oil drilling and hydraulic fracturing – or fracking – is often laden with salts and can spill, contaminating soils. In a recent study, researchers tested a method that extracted a large percentage of the salt present in soils contaminated by brine spills.

Scientists learn how to ramp up microbes’ ability to make memories

Researchers have identified a mutation that prompts bacterial cells to acquire genetic memories 100 times more frequently than they do naturally. This discovery provides a powerful research tool and could bring scientists one step closer to developing DNA-based data storage devices.

Bacteria control levels of dangerous pollutant in seabirds

Researchers have discovered that levels of mercury in seabirds off the coast of British Columbia have remained relatively stable over the past 50 years. This might appear to be good news, but it is due to a decline in fish stocks near the surface which has forced seabirds to feed in areas where there are more bacteria which control the levels of mercury.

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