Tech
Lead, arsenic, and other heavy metals are increasingly present in water systems around the world due to human activities, such as pesticide use and, more recently, the inadequate disposal of electronic waste. Chronic exposure to even trace levels of these contaminants, at concentrations of parts per billion, can cause debilitating health conditions in pregnant women, children, and other vulnerable populations.
AMHERST, Mass. - A new analysis of 92 studies from 27 countries conducted by ecologists at the University of Massachusetts Amherst suggests that many recent multi-species studies of wildlife communities often incorrectly use the analytical tools and methods available.
Researchers at California Polytechnic State University have developed a low-cost approach that improves cell-free biotechnology's utility for bio-manufacturing and portability for field applications.
CHAMPAIGN, Ill. -- Researchers have demonstrated a new method for testing microscopic aeronautical materials at ultra-high temperatures. By combining electron microscopy and laser heating, scientists can evaluate these materials much more quickly and inexpensively than with traditional testing.
Researchers at the National Renewable Energy Laboratory (NREL) and Northern Illinois University (NIU) have developed a technique to sequester the lead used to make perovskite solar cells, a highly efficient emerging photovoltaic technology.
The light-absorbing layer in a perovskite solar cell contains a minute amount of lead. The presence of this toxic material in the developing technology could turn some consumers away when perovskite solar cells become commercially available, said Kai Zhu, a senior scientist in the Chemistry and Nanoscience Center at NREL.
San Diego Zoo Global researchers studying the effects of climate change on polar bears are using innovative technologies to understand why polar bears in the Southern Beaufort Sea are showing divergent movement patterns in the summer. In recent decades, about a quarter of this population of bears have chosen to come on land instead of staying on the shrinking summer sea ice platform. Historically, the polar bears in this region remained on the ice year-round.
The USTC team led by Prof. Shu-Hong Yu (USTC), collaborating with Prof. Zhiyong Tang (National Center for Nanoscience and Technology, China) and Prof. Edward H. Sargent (University of Toronto), has shed new lights on the topic of chiral inorganic nanomaterials. Researchers demonstrated a regioselective magnetization strategy, achieving a library of semiconducting heteronanorods with chiroptical activities.
The research article entitled "Regioselective magnetization in semiconducting nanorods" was published in Nature Nanotechnology on Jan 20th.
The CAS key lab of quantum information makes a significant progress in quantum orienteering. Under the lead of Prof. GUO Guangcan, LI Chuanfeng, XIANG Guoyong and collaborators enhanced the performance of quantum orienteering with entangling measurements via photonic quantum walks. These results were published online by Physical Review Letters on February 13th.
Lithium batteries are easy to explode? Scientists at University of Science and Technology of China (USTC) may have a way to prevent.
In modern life, lithium-ion batteries are used as mobile power sources in all aspects of daily life, thus the safety of lithium-ion batteries is very important. As a key component of lithium-ion batteries, the separators strongly influence the performance and in particular the safety of lithium batteries.
Bottom Line: The U.S. Preventive Services Task Force (USPSTF) concludes that current evidence is insufficient to make a recommendation about screening for cognitive impairment in adults 65 or older.
FOLSOM, Calif., February 25, 2020 –- According to a new epidemiological study, women in their late 50s and early 60s who consumed at least two servings of walnuts per week had a greater likelihood of healthy aging compared to those who did not ea
While electric vehicles alone may not reduce carbon emissions, a new study reveals that when electric vehicles are powered with renewable energy and coupled with carbon policy strategies, they can help combat climate change without sacrificing economic growth.
A research group from Zhejiang University in China has found that the noncentrosymmetric compound CaPtAs is a superconductor, which shows evidence for unconventional properties. This compound provides a new opportunity for studying unconventional superconductivity in systems with broken inversion symmetry.
University of Otago researchers have contributed to an international study which helps improve the understanding of bacteria and viruses.
Published recently in the international science journal, Nature, the study reveals how bacterial immune systems can be harmful for their hosts, and why they are not found in all bacteria.
An international team of scientists has found out that being treated disrespectfully can lead people to develop cynical beliefs about human nature. Cynical beliefs about human nature, in turn, contribute to again being treated disrespectfully by others - and behaving disrespectfully towards others oneself. Through elaborate cross-sectional, longitudinal and experimental studies, the scientists showed that disrespect and cynicism constitute a vicious circle.