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• Measuring the tRNA world
• Quantum quirk yields giant magnetic effect, where none should exist
• Exposure to diverse career paths can help fill labor market 'skills gap'
• Engineering the boundary between 2D and 3D materials
• Considering disorder and cooperative effects in photon escape rates from atomic gases
• Light-emitting tattoo engineered
• Investigating dense plasmas with positron waves
• Pioneering prehistoric landscape reconstruction reveals early dinosaurs lived on tropical islands
• Artificial microswimmers slow down and accumulate in low-fuel regions
• Genes identified that increase the risk of obesity but also protect against disease
• A weak heart makes a suffering brain
• Under climate stress, human innovation set stage for population surge
• Pesticide imidacloprid threatens future for key pollinator
• Stark warning: Combating ecosystem collapse from the tropics to the Antarctic
• African leopard: A cat of all trades
• Did teenage 'tyrants' outcompete other dinosaurs?
• Study finds short window for donating convalescent plasma to COVID-19 patients
• Mortality rises among public when health workers get sick in an outbreak, model suggests
• What to do when a mammogram shows swollen lymph nodes in women just vaccinated for COVID

Measuring the tRNA world Posted: 26 Feb 2021 11:04 AM PST Transfer RNAs (tRNAs) deliver specific amino acids to ribosomes during translation of messenger RNA into proteins. The abundance of tRNAs can therefore have a profound impact on cell physiology, but measuring the amount of each tRNA in cells has been limited by technical challenges. Researchers have now overcome these limitations with mim-tRNAseq, a method that can be used to quantify tRNAs in any organism and will help improve our understanding of tRNA regulation in health and disease.

Quantum quirk yields giant magnetic effect, where none should exist Posted: 26 Feb 2021 11:04 AM PST In a twist befitting the strange nature of quantum mechanics, physicists have discovered the Hall effect -- a characteristic change in the way electricity is conducted in the presence of a magnetic field -- in a nonmagnetic quantum material to which no magnetic field was applied.

Exposure to diverse career paths can help fill labor market 'skills gap' Posted: 26 Feb 2021 10:55 AM PST When Patrick Rottinghaus began college, he had no idea what he wanted to do with his career. He started out as an "Open" major while he explored possibilities. Today, he is helping young people eager to find their place in the world by identifying their strengths and connecting them with careers that match their skill-set, interests and personality. As the father of three children, including a daughter soon to enter high school, he wants to ensure they are equipped with the knowledge and skills to succeed as they prepare to enter the modern workforce.

Engineering the boundary between 2D and 3D materials Posted: 26 Feb 2021 10:55 AM PST For practical applications, two-dimensional materials such as graphene must at some point connect with the ordinary world of 3D materials. Researchers have come up with a way of imaging what goes on at these interfaces, down to the level of individual atoms, with the goal of better controlling these materials' electronic properties.

Considering disorder and cooperative effects in photon escape rates from atomic gases Posted: 26 Feb 2021 10:54 AM PST Scientists aim to numerically investigative the roles of cooperative effects and disorder in photon escape rates from a cold atomic gas to construct a model that considers the vectorial nature of light. Thus, the study accounts for properties of light, previously neglected.

Light-emitting tattoo engineered Posted: 26 Feb 2021 09:13 AM PST The technology, which uses organic light-emitting diodes (OLEDs), is applied in the same way as water transfer tattoos. That is, the OLEDs are fabricated on to temporary tattoo paper and transferred to a new surface by being pressed on to it and dabbed with water.

Investigating dense plasmas with positron waves Posted: 26 Feb 2021 09:13 AM PST Scientists assess the dynamics of positron acoustic waves (PAWS) in EPI plasmas whilst under the influence of magnetic fields, or magnetoplasmas.

Pioneering prehistoric landscape reconstruction reveals early dinosaurs lived on tropical islands Posted: 26 Feb 2021 09:13 AM PST A new study using leading edge technology has shed surprising light on the ancient habitat where some of the first dinosaurs roamed in the UK around 200 million years ago.

Artificial microswimmers slow down and accumulate in low-fuel regions Posted: 26 Feb 2021 09:13 AM PST A researcher has discovered that artificial microswimmers accumulate where their speed is minimized, an idea that could have implications for improving the efficacy of targeted cancer therapy.

Genes identified that increase the risk of obesity but also protect against disease Posted: 26 Feb 2021 09:13 AM PST Scientists have identified 62 genes that lead to both higher levels of body fat but a lower risk of cardiovascular and metabolic diseases. These genes may help to keep body fat healthy, and open a new avenue for developing drugs that lower the risk of diabetes and heart disease.

A weak heart makes a suffering brain Posted: 26 Feb 2021 09:12 AM PST Heart problems cause disturbed gene activity in the brain's memory center, from which cognitive deficits arise. Researchers at the DZNE come to this conclusion based on laboratory studies. They consider that they have found a possible cause for the increased risk of dementia in people with heart problems.

Under climate stress, human innovation set stage for population surge Posted: 26 Feb 2021 09:12 AM PST Aridification in the central plains of China during the early Bronze Age did not cause population collapse, a result that highlights the importance of social resilience to climate change. Instead of a collapse amid dry conditions, development of agriculture and increasingly complex human social structures set the stage for a dramatic increase in human population around 3,900 to 3,500 years ago.

Pesticide imidacloprid threatens future for key pollinator Posted: 26 Feb 2021 09:12 AM PST An insecticide used to control pest infestations on squash and pumpkins significantly hinders the reproduction of ground-nesting bees -- valuable pollinators for many food crops, new research has revealed.

Stark warning: Combating ecosystem collapse from the tropics to the Antarctic Posted: 26 Feb 2021 07:37 AM PST Eminent scientists warn that key ecosystems around Australia and Antarctica are collapsing, and propose a three-step framework to combat irreversible global damage.

African leopard: A cat of all trades Posted: 26 Feb 2021 06:14 AM PST The leopard stands out as an elusive, versatile, and adaptable animal. Researchers have just published the first genomic data for the African subspecies of the leopard. The results showed an exceptionally high genetic diversity compared to other top predators, transforming our understanding of population dynamics in species at the top of the food chain.

Did teenage 'tyrants' outcompete other dinosaurs? Posted: 25 Feb 2021 11:39 AM PST Paleo-ecologists have demonstrated that the offspring of enormous carnivorous dinosaurs, such as Tyrannosaurus rex may have fundamentally re-shaped their communities by out-competing smaller rival species.

Study finds short window for donating convalescent plasma to COVID-19 patients Posted: 25 Feb 2021 08:34 AM PST The optimal timeframe for donating convalescent plasma for use in COVID-19 immunotherapy, which was given emergency use authorization by the Food and Drug Administration in August 2020, is within 60 days of the onset of symptoms, according to a new study. The research also reveals that the ideal convalescent plasma donor is a recovered COVID-19 patient who is older than 30 and whose illness had been severe.

Mortality rises among public when health workers get sick in an outbreak, model suggests Posted: 25 Feb 2021 05:25 AM PST When healthcare workers become ill during a disease outbreak, overall case counts and mortality rates may significantly increase, according to a new model. The findings may help to improve interventions that aim to mitigate the effects of outbreaks such as COVID-19.

What to do when a mammogram shows swollen lymph nodes in women just vaccinated for COVID Posted: 25 Feb 2021 05:25 AM PST When women undergo breast imaging shortly after receiving a COVID-19 vaccine in the arm, their tests may show swollen lymph nodes in the armpit area. Radiologists say that this is usually a normal finding, and if there are no other concerns, no additional imaging tests are needed unless the lymph nodes remain swollen for more than six weeks after vaccination. The team has published an approach to help avoid delays in both vaccinations and breast cancer screening.

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