1,340 articles mezi dny 1.8.2020 a 31.8.2020

Algorithm predicts the compositions of new materials

A machine-learning algorithm that can predict the compositions of trend-defying new materials has been developed by RIKEN chemists1. It will be useful for finding materials for applications where there is a trade-off between two or more desirable properties.

Scientists discover curious clues in the war between cystic fibrosis bacteria

Several kinds of bacteria can cause lung infections in people with cystic fibrosis (CF). Pseudomonas aeruginosa, which can cause pneumonia, typically infects infants or young children and persists for life, while Burkholderia cepacia complex species only infect teenagers and adults. Although Burkholderia infections are rare, when they do take hold, they are deadly. Now, UNC School of Medicine...

Researchers warn of climate repercussions if Brazilian highway through the Amazon is paved

A pair of researchers with the National Institute for Research in Amazonia has posted an open letter in the journal Science warning of the negative repercussions of resuming paving of a road through a part of the Amazon. In their letter, Lucas Ferrante and Philip Martin Fearnside suggest that resumption of paving will lead to releasing large amounts of carbon dioxide into the atmosphere, further...

Building a prairie and watching for bees

It's early evening as I follow the researchers to their work site on the Phillips Tract, just east of Urbana. When we get there, I immediately notice two things: We are standing in a vast grid of prairie plots with neatly mowed paths between them, and there are tents—dozens of dollhouse-sized tents.

Q&A: What's math got to do with peace?

Larry Liebovitch is a professor in the Department of Physics and the Department of Psychology at Queens College, and at the Physics Program of the Graduate Center, City University of New York. He is also a core faculty member of the Sustaining Peace Project at the Earth Institute's Advanced Consortium on Cooperation, Conflict, and Complexity (AC4). He recently developed a mathematical model...

Pesticides and industrial pollutants found in snow atop Arctic glaciers

Researchers recently found pesticides and industrial compounds deposited in snow atop four high-elevation glacier sites on the Norwegian archipelago Svalbard, often considered a "pristine" environment. The long journey of these compounds—likely originating in the United States and Eurasia—shows the far-reaching impacts of industrial pollution.

Fine-tuning metabolic gene expression to identify variants in yeast genes

Scientists have developed a more nuanced library approach to tuning gene expression in metabolic pathways. Compared to the traditional way, which leverages an all-or-nothing approach to expression, scientists can now opt for various shades of gray. The ability to fine-tune the level of gene expression allowed researchers to identify variations of essential genes in metabolic networks that were...

'We're still so tired': Europe's doctors brace for second Covid-19 wave

When the Guardian spoke to staff in March they had no time for reflection. So what do they think of the new surge now? Coronavirus – latest updatesSee all our coronavirus coverageDuring the initial peak of Spain’s Covid-19 pandemic in the spring, the virus displayed an unexpected mercy. In its spread, ferocity and awful novelty, it left health workers too tired and overwhelmed to look beyond...