New world records: Perovskite-on-silicon-tandem solar cells
Reports and Proceedings
For the first time, an efficiency of 30% for perovskite-on-silicon-tandem solar cells has been exceeded thanks to a joint effort led by scientists at EPFL’s Photovoltaics and Thin Film Electronics Laboratory in partnership with the renowned innovation center, CSEM. Independently certified by the National Renewable Energy Laboratory (NREL) in the United States, these results are a boost to high-efficiency photovoltaics (PV) and pave the way toward even more competitive solar electricity generation
6 July 2022: People conceived by sperm and egg donation, as well as their parents and donors, are making use of commercial genetic DNA testing in a variety of ways little considered in earlier reports, according to the interim results of a qualitative study presented here at ESHRE’s 38th annual meeting in Milan. The widespread availability of commercial DNA databanks ‘is transforming how people involved in donor conception seek information about genetic relatives’, said the study’s first author Dr Lucy Frith, Reader in Bioethics at the University of Manchester, UK.
ORNL Story tips: Split-second leak detection, serendipitous silicon and retrofitting untapped dams
Roasting green chile is an important cultural touchstone for New Mexico, but it leads to a seasonal emission of approximately 7,800 metric tons of carbon dioxide — the equivalent of driving 1,700 cars for a year. Sandia National Laboratories engineer Kenneth Armijo, who grew up on a chile farm in Sabinal, located between Albuquerque and Socorro, New Mexico, thought there was a “greener” way to roast green chile. The results of his experiments roasting chile with concentrated sunlight will be shared at the American Society of Mechanical Engineers’ conference on energy and sustainability next week.
6 July 2022: Concerns have been raised over the past few years that pregnancies derived from frozen embryo transfers in IVF might increase the maternal risk of hypertensive disorders, particularly pre-eclampsia, complications which may have severe consequences for the mother and fetus. These concerns have been raised in recent observational studies comparing the outcomes of fresh and frozen transfers, which, by definition, are subject to statistically confounding variables. Sibling comparisons can remove much of this confounding.
Households across the United Kingdom are urged to be on the lookout for hundreds of precious artworks created by Australian First Nations children who were forcibly taken from their families in the 1940s.
5 July 2022: Having a baby after breast cancer does not negatively impact a woman’s chance of surviving the disease. A new study shows that survival is no worse in younger women, those who had not been pregnant before, and those with hormone-receptor positive breast cancer.
5 July 2022: Women diagnosed with the eating disorder anorexia nervosa are five (500%) times more likely on average to have underweight babies, according to a comprehensive new study.
5 July 2022: Women who time intercourse may be able to increase their chance of conceiving, according to an updated* Cochrane analysis. The review found that couples who pinpoint their ‘fertile window’ using urine-testing monitors specifically may improve their pregnancy odds.
Minja Koskela from the University of the Arts Helsinki questions the claims that popular music is students’ ‘own’ music and, therefore, a particularly democratic medium through which to teach music.
During the pandemic, digitalisation provided opportunities for Capitals of Culture to focus on issues of ecological sustainability and accessibility, to seek new audiences, to strengthen regional cooperation and to experiment.
When in 2002 the first cow suffering from the animal disease BSE was born in Germany, consumer protection was plunged into a crisis. The German Federal Institute for Risk Assessment (BfR) was founded in its wake. This year, the Institute turns 20. To mark the occasion, the tenth issue of the "BfR2GO" science magazine focuses on how the institute came into being and its working methods, as well as on future challenges. The practice of health risk assessment at the BfR has changed profoundly in the past decades. "Knowledge is growing. While an assessment used to fit on one sheet of paper, today it can cover 1,000 pages", says BfR President Professor Dr Dr Andreas Hensel. "Our current edition of BfR2GO shows that the quest to identify risks is always, and above all, a quest for scientific knowledge."