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What The Study Did: Researchers conducted a review of studies examining the frequency and variety of persistent symptoms after COVID-19 infection.

What The Study Did: This study included data from more than 11,000 emergency medical services (EMS) agencies in 49 states to describe racial/ethnic, social and geographic changes in EMS-observed overdose-associated cardiac arrests during the COVID-19 pandemic through 2020 in the United States.

New research published in Nature provides a powerful yet surprisingly simple way to determine the number of visitors to any location in a city.

Researchers led by the German Center for Neurodegenerative Diseases (DZNE) have used "swarm learning" - a novel, artificial intelligence technology - to detect blood cancer, lung diseases and COVID-19 in data stored in a decentralized fashion. Their findings are reported in "Nature".

A recent study, affiliated with South Korea's Ulsan National Institute of Science and Technology (UNIST) has unveiled a new synthetic approach for controlling functional group assemblies in porous solids by using metal-organic polyhedra (MOPs). Their findings are expected to have attracted attention as a useful synthetic strategy for catalysis, gas storage, and molecular separation.

Scientists, research organizations, and scientific journals have long relied upon the ISSCR Guidelines as the international standard for scientific and ethical rigor, oversight, and transparency in stem cell research.

It's well known that reptiles depend on temperature cues while in the egg to determine a hatchling's sex. Now, researchers writing in the journal Trends in Ecology & Evolution on May 26 say that embryos of many different animal species also rely on acoustic signals in important ways. They call this phenomenon "acoustic developmental programming."

Electric fish pause before sharing something particularly meaningful. Pauses also prime the sensory systems to receive new and important information, according to research from Washington University in St. Louis. The study reveals an underlying mechanism for how pauses allow neurons in the midbrain to recover from stimulation.

By applying mass spectrometry, scientists at the University of Copenhagen provide some of the most detailed data on how mitochondrial proteins cluster into supercomplexes - a process that makes mitochondria more efficient at producing energy. The findings, which were published in Cell Reports, is a precious resource for the scientific community, especially those tackling mitochondrial adaptations to exercise training or mitochondrial diseases.

Researchers from the University of Kansas published a study in the Bulletin of the American Meteorological Society parsing the mechanism that in June 2020 transported a massive dust plume from Saharan Africa to the Caribbean and U.S. Gulf Coast.

Travelling elephants pay close attention to scent trails of dung and urine left by other elephants, new research shows.

About ten percent of the global riverine export of this toxic substance to oceans originates from this region - with potentially significant impacts on Arctic organisms

The researchers Juan A. Fernández-Ontiveros, of the Istituto Nazionale di Astrofisica (INAF) in Rome and Teo Muñoz-Darias, of the Instituto de Astrofísica de Canarias (IAC), have written an article in which they describe the different states of activity of a large sample of supermassive black holes in the centres of galaxies.

Killer flies can reach accelerations of over 3g when aerial diving to catch their prey - but at such high speeds they often miss because they can't correct their course.

Researchers from St Petersburg University have created a new theory of diffusion NMR experiments to study amyloid fibrils. Fibrils are one of the key factors behind various forms of dementia, including Alzheimer's disease. The researchers showed that using a diffusion filter it is possible to separate the spectral signals of fibrils and other components of the amyloidogenic sample and obtain their individual spectra, which has been considered impossible for a long time.

MD Anderson researchers have discovered a new role for the metabolic enzyme, MCAD, in glioblastoma. The enzyme prevents toxic fatty acid accumulation, in addition to its normal role in energy production, and targeting MCAD led to irreversible damage and cell death specifically in cancer cells.

A new study has mounted perhaps the most intricate, detailed look ever at the diversity in structure and form of bees, offering new insights in a long-standing debate over how complex social behaviors arose in certain branches of bees' evolutionary tree. The report offers strong evidence that complex social behavior developed just once in pollen-carrying bees, rather than twice or more, separately, in different evolutionary branches--but researchers say the case is far from closed.

The cause of Earth's deepest earthquakes has been a mystery to science for more than a century, but a team of Carnegie scientists may have cracked the case. New research published in AGU Advances provides evidence that fluids play a key role in deep-focus earthquakes--which occur between 300 and 700 kilometers below the planet's surface.

Researchers from the Danish psychiatry research-project iPSYCH have contributed to identify 33 new genetic variants which, as it turns out, play a role in bipolar disorder. To achieve this, they have examined DNA profiles from 413,000 people.

Current wireless networks such as Wi-Fi, LTE-Advanced, etc., work in the lower radio spectrum, below 6 GHz. Experts warn that soon this band will become congested due to mushrooming data traffic. It is calculated that by 2024, 17,722 million devices will be connected.