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Science News Archive February 2021 - Page 3


Page 3 of 45

Rare bee found after 100 years

A rare Australian native bee species, Pharohylaeus lactiferus, has been found again after 100 years, with only six individuals previously recorded. The discovery highlights the species' vulnerability to habitat destruction and wildfires in Australia's rainforests.

SourceFlinders University·JournalJournal of Hymenoptera Research·DateFeb 25, 2021

Super-resolution RNA imaging in live cells

Researchers at Heidelberg University developed a novel fluorescence marker called RhoBAST to enable super-resolution RNA imaging in live cells. The method reveals details of subcellular structures and molecular interactions involving RNA, improving image resolution.

SourceHeidelberg University·JournalNature Biotechnology·DateFeb 25, 2021

Obesity may affect puberty timing and hormones in girls

A study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism found that girls with excess body fat developed fully mature breasts more slowly but started their period sooner. The researchers also found higher levels of reproductive hormones, including testosterone, in girls with obesity.

SourceThe Endocrine Society·JournalThe Journal of Clinical Endocrinology & Metabolism·DateFeb 25, 2021

What might sheep and driverless cars have in common? Following the herd

A new study by computer scientists found that individuals are more willing to sacrifice their own safety when peers are more likely to do so in programming autonomous vehicles. The researchers also showed that the social component of decision-making is often overlooked and that transparency in machine programming is crucial for public ...

SourceUniversity of Southern California·JournalFrontiers in Robotics and AI·DateFeb 25, 2021

Smaller plates help reduce food waste in campus dining halls

A University of Illinois study found that shifting from round to oval plates with smaller surface areas can significantly reduce food waste in dining halls. The researchers observed significant reductions in food selection, consumption, and waste when diners used the oval plates, resulting in nearly 20 grams less food waste per plate.

Scientists probe electronic angular momentum to a chemical reaction for the first time

Researchers have successfully probed electronic angular momentum to a chemical reaction at the quantum state-resolved level, offering a detailed understanding of molecular crossed beam experiments and theoretical simulations. This breakthrough reveals subtle influences of electronic angular momentum on chemical product distributions.

Could post-COVID-19 tourists become less adventurous?

Research found that post-pandemic tourism is influenced by a behavioral immune system, leading to increased nationalism, xenophobia, and avoidance of crowds. Tourists may choose familiar destinations over new ones, increasing destination loyalty. This could have long-term implications for businesses during the COVID-19 era.

SourceCopenhagen Business School·JournalAnnals of Tourism Research·DateFeb 25, 2021

Theory could accelerate push for spintronic devices

Rice University scientists develop a new theory that can help identify materials for advanced spintronic devices, which depend on electron spin states. The theory predicts heteropairs of two-dimensional bilayers that enable large Rashba splitting, making room-temperature spin transistors possible.

SourceRice University·JournalJournal of the American Chemical Society·DateFeb 25, 2021

Openly available toolkit to help lab-based coronavirus research

A new, openly available SARS-CoV-2 laboratory research toolkit was published in PLOS Biology. The toolkit includes a 'single plasmid reverse genetics' system allowing researchers to manipulate the coronavirus genome and study individual mutations. This will fast-track investigation of COVID-19 research, including novel variants, drug d...

SourcePLOS·JournalPLOS Biology·DateFeb 25, 2021

A tangled food web

The study argues that trophic levels are insufficient to assess aquaculture sustainability due to changing feed compositions and energy requirements. Researchers advocate for more nuanced assessments, such as voluntary certifications and incentives for environmentally responsible practices.

SourceUniversity of California - Santa Barbara·JournalReviews in Aquaculture·DateFeb 25, 2021