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54 articles from PhysOrg

How we transport water in our bodies inspires new water filtration method

A multidisciplinary group of engineers and scientists has discovered a new method for water filtration that could have implications for a variety of technologies, such as desalination plants, breathable and protective fabrics, and carbon capture in gas separations. The research team, led by Manish Kumar in the Cockrell School of Engineering at The University of Texas at Austin, published their...

Dozens potentially exposed to toxic mercury in Houston spill

Dozens of people in Houston potentially were exposed to the toxic metal mercury after it was spilled outside a Walmart, a Sonic Drive-In and a gas station, officials said. Federal and local investigators were trying to determine if the spills were intentional. Fire Chief Sam Pena said up to 60 people were asked to take decontamination showers and a pregnant woman was taken to a hospital as a...

Underwater pile driving noise causes alarm responses in squid

Exposure to underwater pile driving noise, which can be associated with the construction of docks, piers, and offshore wind farms, causes squid to exhibit strong alarm behaviors, according to a study by Woods Hole Oceanographic Institution (WHOI) researchers published Dec. 16, 2019, in the journal Marine Pollution Bulletin.

Suomi NPP satellite views New South Wales fires raging on

NOAA-NASA's Suomi NPP satellite flew over the New South Wales fires in Australia on December 16, 2019 and found devastation from the ongoing fires. The New South Wales Rural Fire Service is reporting 96 fires are burning and to date the size of the area burned is 1.5 times the size of the state of Connecticut (approximately 5.3 million acres of land). These fires are largely the result of an...

New methods promise to speed up development of new plant varieties

A University of Minnesota research team recently developed new methods that will make it significantly faster to produce gene-edited plants. They hope to alleviate a long-standing bottleneck in gene editing and, in the process, make it easier and faster to develop and test new crop varieties with two new approaches described in a paper recently published in Nature Biotechnology.

3-D print a piece of Mars for the holidays

There's a galaxy of gifts out there for space nerds. Researchers at The University of Texas at Austin may have just the thing to set your present apart: a model of Jezero Crater, the landing site of NASA's upcoming Mars 2020 Rover mission, that you can 3-D print yourself.

Collaboration yields insights into mosquito reproduction

As carriers for diseases like dengue and Zika, mosquitoes kill more than 1 million people each year and sicken hundreds of millions more. But a better understanding of mosquito reproduction can help humans combat outbreaks of these diseases, which are worsening as the climate warms.

What happens to gold nanoparticles in cells?

Gold nanoparticles, which are supposed to be stable in biological environments, can be degraded inside cells. This research, conducted by teams from the CNRS, l'Université de Paris, Sorbonne Université, and l'Université de Strasbourg, will be published in PNAS on December 16, 2019, and reveals the ability of cells to metabolize gold, which is not essential for their functioning. This study...

Connecting the prehistoric past to the global future

Research on global biodiversity has long assumed that present-day biodiversity patterns reflect present-day factors, namely contemporary climate and human activities. A new study shows that climate changes and human impacts over the last 100,000 years continue to shape patterns of tropical and subtropical mammal biodiversity today—a surprising finding.

Discovery reveals tractionless motion is possible

In an article published in Physical Review Letters, Bristol scientists have answered the fundamental question: "Is it possible to move without exerting force on the environment?", by describing the tractionless self-propulsion of active matter.

Leptons help in tracking new physics

Electrons with 'colleagues'—other leptons—are one of many products of collisions observed in the LHCb experiment at the Large Hadron Collider. According to theorists, some of these particles may be created in processes that extend beyond standard physics. The latest analysis verifies these predictions.

Evolutionarily novel genes at work in tumors

A team of scientists from Peter the Great St.Petersburg Polytechnic University (SPbPU) studied the evolutionary ages of human genes and identified a new class of them expressed in tumors—tumor specifically expressed, evolutionarily novel (TSEEN) genes. This confirms the team's earlier theory about the evolutionary role of neoplasms.

Change of shifts at the north pole

After exchanging research teams and crewmembers, the greatest expedition to the Central Arctic of all time is now entering the next phase, during which urgently needed research into the Arctic climate system will be conducted. In the following paragraphs, the team from the first leg of the journey, which was dominated by thin sea ice, review the mission so far: despite extremely challenging...