Halide perovskite solar cells hold promise as the next generation of solar cell technologies, but while researchers have developed techniques for improving their material characteristics, nobody understood why these techniques worked. New research sheds light on the science behind these engineering solutions and paves the way for developing more efficient halide perovskite solar cells.
* This article was originally published here
Saturday 8 June 2019
14 lions on the loose in South Africa, with nowhere to go
A pride of 14 lions is on the loose near a mining community bordering South Africa's Kruger National Park, officials said Friday, and warned members of the public to be alert.
* This article was originally published here
* This article was originally published here
Weight-loss patients at higher risk of death from substance use disorders
The death rate from drug- and alcohol-related causes in people who've had Roux-en-Y gastric bypass surgery is nearly triple that of the general public, according to University of Pittsburgh research published today in Surgery for Obesity and Related Diseases, the journal of the American Society for Metabolic and Bariatric Surgery.
* This article was originally published here
* This article was originally published here
Hedge fund buys struggling book retailer Barnes & Noble
Struggling bookseller Barnes & Noble said Friday it was being sold to hedge fund Elliott Management, which already owns British-based book retailer Waterstones.
* This article was originally published here
* This article was originally published here
France ready to cut Renault stake to shore up Nissan ties: minister
France is ready to consider paring back its 15-percent stake in Renault in the interests of consolidating the automaker's alliance with Japanese partner Nissan, Finance Minister Bruno Le Maire said Saturday.
* This article was originally published here
* This article was originally published here
How brassinosteroid signaling makes roots grow longer under nitrogen deficiency
As sessile organisms, plants rely on their ability to adapt the development and growth of their roots in response to changing nutrient conditions. One such response, known to be displayed by plants grown in low nitrogen conditions, is the elongation of primary and lateral roots to explore the surrounding soil. This adaption to the lack of the essential element nitrogen is of particular interest, as it reflects a "foraging strategy," by which the root system can exploit nutrients from a larger soil volume. Until recently, this was the least understood nitrogen-dependent root response. Scientists from the IPK in Gatersleben have now identified the hormone pathway regulating root foraging under low nitrogen conditions and a signalling component that modulates the intensity of this response. These findings open up the possibility of breeding crops with root systems enabling more efficient nitrogen uptake.
* This article was originally published here
* This article was originally published here
Legislators: Boeing wanted to wait 3 years to fix Max flaw
Two key lawmakers said Friday that Boeing planned to delay fixing a nonworking safety alert on its 737 Max aircraft for three years and sped up the process only after the first of two deadly crashes involving Max planes last October.
* This article was originally published here
* This article was originally published here
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