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Science News Archive 2021 - Page 495


Page 495 of 510

Climate change doesn't spare the smallest

Research by University of Pennsylvania biologists Daniel Janzen and Winnie Hallwachs found that climate change has taken a toll on insects in the tropics. Insect biomass and species richness have been decomposing since the mid-1970s, with dramatic drops in moth numbers and species diversity.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·DateJan 14, 2021

Journal of Clinical Sleep Medicine collection highlights 15 years of scientific discovery

The Journal of Clinical Sleep Medicine has published a special 15th anniversary collection featuring influential studies on sleep disorders and other topics. The selected papers have had a significant impact on the field, with landmark reviews like "Behavioral and physiological consequences of sleep restriction" still widely cited today.

SourceAmerican Academy of Sleep Medicine·JournalJournal of Clinical Sleep Medicine·DateJan 14, 2021

How aerosols are formed

Researchers at ETH Zurich have gained new insights into aerosol formation by detecting volatile components for the first time. Volatile components were found to catalyze vapor nucleation, accelerating the process.

SourceETH Zurich·JournalScience Advances·DateJan 14, 2021

Climate change is hurting children's diets, global study finds

A global study of 107,000 children found that higher temperatures are an equal or greater contributor to child malnutrition and low quality diets than poverty, sanitation, and education. Climate change is also associated with increased diet diversity in some regions, but this effect depends on the intensity and distribution of rainfall.

SourceUniversity of Vermont·JournalEnvironmental Research Letters·DateJan 14, 2021

A fly's eye view of evolution

Researchers found that changes in a central gene node lead to the formation of larger eyes in some species, while different mechanisms explain smaller eyes in others. The study contributes to understanding of evolution of complex traits and could inform animal and plant breeding.

SourceUniversity of Göttingen·JournalMolecular Biology and Evolution·DateJan 13, 2021

Baylor College of Medicine neuroscientist and geneticist recognized for re

Dr. Benjamin Arenkiel's research identified a convergent brain circuit that combines sensory perceptions and motivational state, linking basal forebrain circuits to behaviors such as anxiety, anorexia, addiction, and more. His work offers a new approach to treating severe eating disorders, obesity, and addictive behaviors by manipulati...

Diffractive networks light the way for optical image classification

Researchers at UCLA have developed Diffractive Deep Neural Networks (D2NNs) for all-optical object classification, achieving higher accuracy than individual constituent D2NNs and digital AI models. The success of the ensemble learning approach demonstrates the power of combining multiple predictions to obtain a more accurate prediction.

New insights into pancreatitis

This study validates the significance of two critical thresholds in pancreatitis, one for damage to acinar cells and another for clinical symptoms. It highlights the importance of cost transparency, preoperative informed financial consent, and price regulation to reduce financial hardship faced by patients and their families.

SourceFlinders University·JournalPancreatology·DateJan 13, 2021

Inferring human genomes at a fraction of the cost promises to boost biomedical research

A new statistical method called GLIMPSE allows for the inference of complete human genomes from small amounts of data, providing a cost-effective alternative to current approaches. This enables researchers to analyze understudied populations and uncover associations in complex traits such as Alzheimer's disease, cancer, and obesity.

SourceSwiss Institute of Bioinformatics·JournalNature Genetics·DateJan 13, 2021

How to keep drones flying when a motor fails

Researchers at the University of Zurich have developed a solution to stabilize drones when one motor fails, using onboard camera information. The team equipped quadcopters with standard and event cameras, which enable the drone to estimate its position in space despite high-speed rotation. This innovation improves flight safety in area...

SourceUniversity of Zurich·JournalIEEE Robotics and Automation Letters·DateJan 13, 2021

CVIA publishes selected abstracts from the 31st GW-ICC Conference

Cardiovascular Innovations and Applications (CVIA) has published selected abstracts from the 31st Great Wall International Cardiology Conference. The abstracts cover various topics including basic and translational medicine, clinical research on cardiovascular diseases, and cardiovascular-disciplinary research.

SourceCompuscript Ltd·JournalCardiovascular Innovations and Applications·DateJan 13, 2021