Culture
What The Study Did: Among the few New York state public school districts providing full-time in-person elementary school instruction during the COVID-19 pandemic, most districts served predominately white students, rural/suburban students and children who were not disadvantaged (children who were not from a low-income family, were not English language learners, did not have homelessness, and did not have a disability).
Authors: Ashley M. Fox, Ph.D., M.A., of the University at Albany, State University of New York (SUNY), is the corresponding author.
By combining oil drops with water containing a detergent-like substance, the scientists found they could produce artificial swimmers that are able to swim independently and even harvest energy to recharge.
Adenovirus vaccine vectors, such as the ChAdOx1 nCov-19 construct which has risen to prominence as a major vaccine for COVID-19, may generate robust long-term immune system responses, according to scientists from the Universities of Oxford and the Cantonal Hospital St.Gallen, Switzerland.
Writing in the journal Nature Immunology, they detail an investigation into one of the key features of adenovirus vaccines - their ability to generate strong and sustained populations of the 'killer' T-cell element of the immune system.
During mating in wildlife species, males transfer millions of sperm into the female genital tract. On the way to the egg cell the sperm have to pass through the genital tract. Very few of the sperm cells actually succeed in passing through and reaching the vicinity of the egg cell. Those that do will then be conditioned for fertilisation. Mechanisms underlying sperm selection and, therefore, reproductive success are largely unknown, as their experimental study in the living organism is very difficult for both ethical and practical reasons.
Repairing complex electrical appliances is time consuming and rarely cost-effective. The working group led by Prof. Dr. Karl Mandel, Professorship of Inorganic Chemistry at Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), has now developed a smart microparticle that enables defective components in these appliances to be identified more quickly and easily by using light signals. In the long-term, this could make repairs easier and extend the operating life of devices. The results have been published in the journal Advanced Functional Materials.
Fukuoka, Japan--At this very moment, the billions of neurons in your brain are using their trillions of connections to enable you to read and comprehend this sentence.
Now, by studying the neurons involved in the sense of smell, researchers from Kyushu University's Faculty of Medical Sciences report a new mechanism behind the biomolecular bonsai that selectively strengthens these connections.
New research will help doctors identify, treat and prevent potentially dangerous irregular heartbeats in patients with hypertrophic cardiomyopathy (HCM), a common heart condition in which the heart thickens and strains to pump blood.
Scientists have developed a rapid, highly accurate test to detect antibodies against the spike protein of SARS-CoV-2 in human serum, opening a new avenue for understanding the full extent of the pandemic and evaluating the effectiveness of vaccines.
Single-cell RNA sequencing has revealed a subset of cells that could provide protection from a rare, but severely debilitating and fatal, lung disease. The findings were published by Nagoya University researchers and colleagues in the European Respiratory Journal. Further research could lead to new therapeutic strategies for the disease, called idiopathic pulmonary fibrosis (IPF).
INDIANAPOLIS -- Nursing homes throughout the United States have been devastated by the COVID-19 pandemic with many perceptions and misperceptions but little documentation about what has happened on a day-by -day basis to residents in these facilities. A study from Regenstrief Institute and Indiana University School of Medicine research scientists is one of the first to describe and identify patterns in the course of COVID-19 in the typically frail individuals who reside in nursing homes.
To date, there are no effective antidotes against most virus infections. An interdisciplinary research team at the Technical University of Munich (TUM) has now developed a new approach: they engulf and neutralize viruses with nano-capsules tailored from genetic material using the DNA origami method. The strategy has already been tested against hepatitis and adeno-associated viruses in cell cultures. It may also prove successful against corona viruses.
A new study finds that resilience is a dynamic process, rather than a fixed trait - and suggests this may have significant ramifications for the business world.
"Organizations are interested in cultivating a resilient workforce, because they want people who are able to remain committed to an organization and its goals over time," says Patrick Flynn, corresponding author of the study and an assistant professor of human resources management at North Carolina State University's Poole College of Management.
The mitochondrion has garnered quite the reputation for its role as the "powerhouse of the cell." These tiny, but mighty organelles play various life-sustaining roles, from powering our own cells and organs to fueling chemical and biological processes. But when they aren't working properly, a number of rare diseases can occur.
The pandemic has taught us that almost all companies have to sell on the internet. Bots are a technology that facilitates e-commerce. They are digital assistants that can answer customer queries about products that are sold or help to locate them, as well as supporting customers in the purchasing process. "In whatever language; and moreover, chatbots never get tired: They're available 24 hours a day, 365 days a year", said Jordi Cabot, the Universitat Oberta de Catalunya (UOC) researcher who created Xatkit, a company specialized in their development.
The RUDN University chemists have discovered a reaction for the synthesis of acetimidamides, heterocyclic compounds with biological activity that can be used for the synthesis of hormones, anti-inflammatory and other medical drugs. The reaction goes in one step with an efficiency of up to 96%. The results are published in the journal Molecules.