US-wide, non-white neighborhoods are hotter than white ones
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In cities and towns across the United States, neighborhoods with more Black, Hispanic and Asian residents experience hotter temperatures during summer heatwaves than nearby white residents, a new study finds.
New formula can calculate the elasticity of hexagonal lattice material.
Having a home near a busy airport certainly has its perks. It is close to many establishments and alleviates the problem of wading through endless traffic to catch flights. But it does come at a cost -- tolerating the jarring sounds of commercial airplanes during landing and takeoff. Researchers at Texas A&M University have conducted a computational study that validates using a shape-memory alloy to reduce the unpleasant plane noise produced during landing.
Imagine sitting out in the sun, reading a digital screen as thin as paper, but seeing the same image quality as if you were indoors. Thanks to research from Chalmers University of Technology, Sweden, it could soon be a reality. A new type of reflective screen -- sometimes described as 'electronic paper' -- offers optimal color display, while using ambient light to keep energy consumption to a minimum.
New research published by the open access publisher Frontiers inventories greenhouse gas emissions of 167 globally distributed cities. The study shows that just 25 mega-cities produce 52% of the greenhouse gas emissions from the studied cities. Asian cities emit the most greenhouse gasses (GHG), and most cities of developed countries had significantly higher per capita GHG emissions than those of developing countries. The authors propose three key policy recommendations.
An international study of parks and gardens finds even the humble roadside verge plays an important role in the environment and for our health.
A researcher from the University of Tsukuba has introduced a new theory for superconductivity that can better explain the results of recent experiments with high-temperature superconductors. By focusing on the "Berry connection," this work may lead to energy distribution with much less electrical resistance.
Throughout the pandemic, air sensors watched during lockdowns as air pollution fell in residential and commercial areas, and then as pollution rose again with reopenings. The changing levels, the researchers found, which behaved differently in residential and commercial parts of the city, show where pollution is coming from and how it might change in the future under different policies.
Synthesizing hybrid enzyme catalysts in situ to improve and expand enzymatic catalysis is an important way to address challenges of industrial biocatalysis. In this account, the construction principles, the structure-function relationship, the integration of biocatalysis and metal catalysis, and other key factors are introduced regarding the rational design of hybrid enzyme catalysts. This account sheds light on the development of rationally structurally designed hybrid enzyme catalysts for expanding biocatalysis in more chemical manufacturing processes.
Scientists at the Department of Energy's Oak Ridge National Laboratory and the University of Tennessee, Knoxville, have found a way to simultaneously increase the strength and ductility of an alloy by introducing tiny precipitates into its matrix and tuning their size and spacing. The precipitates are solids that separate from the metal mixture as the alloy cools. The results will open new avenues for advancing structural materials.