- PhysOrg
- 23/1/23 23:47
A newly-published hypothesis, led by a UCL researcher, suggests a momentary leap in a single species on a single day millions of years ago might ultimately have led to the arrival of mammals—and therefore humans.
106 articles from MONDAY 23.1.2023
A newly-published hypothesis, led by a UCL researcher, suggests a momentary leap in a single species on a single day millions of years ago might ultimately have led to the arrival of mammals—and therefore humans.
Comet C/2022 E3, which orbits the sun every 50,000 years, will be closest to us next Wednesday and ThursdayAn exotic green comet that has not passed Earth since the time of the Neanderthals has reappeared in the sky ready for its closest approach to the planet next week.Discovered last March by astronomers at the Zwicky Transient Facility at the Palomar Observatory in California, comet C/2022 E3...
Archaeologists have unearthed the remains of 10 mummified crocodiles from an Egyptian tomb that are so well-preserved, one scientist said it's "like almost a real crocodile just lying there in front of...
Women constitute 26% of the scientists at the prestigious Scripps Institution of Oceanography (SIO) at the University of California, San Diego (UCSD), but only hold 17% of the space, according to an unprecedented report released last week. SIO’s 56 women scientists have on average half as much research space and one-third the storage space of their 157 male counterparts,...
One of the most exciting applications of quantum computers will be to direct their gaze inwards, at the very quantum rules that make them tick. Quantum computers can be used to simulate quantum physics itself, and perhaps even explore realms that don't exist anywhere in nature.
Heavy metals such as lead and cadmium are present in batteries, cosmetics, food and other things that are part of everyday life. They are toxic when they accumulate in the human organism, potentially causing several health problems, but detecting them in body fluids requires expensive equipment and a controlled laboratory environment. Researchers at the University of São Paulo (USP) in Brazil...
Researchers at University of California San Diego and UC Riverside have further elucidated the molecular pathway used by the SARS-CoV-2 virus to infect human lung cells, identifying a key host-cell player that may prove a new and enduring therapeutic target for treating COVID-19.
Microplastics—tiny particles generated as plastics weather and fragment—pose a growing threat to ecosystem and human health. A new laboratory study shows these threats extend beyond direct physical or chemical impacts, revealing that the presence of microplastics increases the severity of an important viral fish disease.
Like forensic investigators, scientists can use molecular techniques to detect evidence of Antarctic krill in seawater samples collected in the Southern Ocean. The revolutionary technology can identify Antarctic krill DNA within the alphabet soup of DNA molecules shed by numerous other marine creatures, including bacteria, other krill species, and whales.
New collaborative research led by scientists at the University of California, Santa Cruz, shows reduced krill supplies lead to fewer pregnancies in humpback whales—a finding that could have major implications for industrial krill fishing.
Top-down approaches to tackling substance abuse in drug-ravaged parts of Colombia, Afghanistan and Myanmar are harming livelihoods, health and ecology, a new study warns.
A new study from Rice University political scientist Rick Wilson and Texas A&M economist Catherine Eckel has examined the topic of trustworthiness. The article, titled "Attributions of Trust and Trustworthiness," will appear in an upcoming edition of Political Behavior.
Reversing osteoporosis could one day be as easy as taking a pill.
Solar flares and other types of space weather can wreak havoc with spaceflight and with telecommunications and other types of satellites orbiting Earth. But to date, scientists' ability to research ways to overcome that challenge has been severely limited. That's because experiments they conduct in laboratories here on Earth are affected by gravity in ways that are quite different from conditions...
Scientists show reduced krill supplies lead to fewer pregnancies in humpback whales -- a finding that could have major implications for industrial krill fishing. Data from Antarctica show more humpback whales get pregnant after years with abundant krill than after years when krill were less plentiful.
Microplastics -- tiny particles generated as plastics weather and fragment -- pose a growing threat to ecosystem and human health. A new laboratory study shows these threats extend beyond direct physical or chemical impacts, revealing that the presence of microplastics increases the severity of an important viral fish disease.
Researchers have made a significant leap forward in developing insect-sized jumping robots capable of performing tasks in the small spaces often found in mechanical, agricultural and search-and-rescue settings. A new study demonstrates a series of click beetle-sized robots small enough to fit into tight spaces, powerful enough to maneuver over obstacles and fast enough to match an insect's rapid...
New research into the durability and age of an ancient asteroid made of rocky rubble and dust, revealed significant findings that could contribute to potentially saving the planet if one ever hurtled toward Earth.
Researchers report that elephants play a key role in creating forests which store more atmospheric carbon and maintaining the biodiversity of forests in Africa. If the already critically endangered elephants become extinct, rainforest of central and west Africa, the second largest rainforest on earth, would lose between six and nine percent of their ability to capture atmospheric carbon,...
Although wolves in Alaska will eat just about anything that moves, their typical main course consists of deer, deer, and more deer. But when wolves on one island off the state’s coast finished off nearly all the deer around them, they turned to a surprising substitution: sea otters. That’s the conclusion of a new study that records a rare instance of a wolf population...
In findings published in Proceedings of the National Academy of Sciences (PNAS), Saint Louis University researchers and colleagues report that elephants play a key role in creating forests which store more atmospheric carbon and maintaining the biodiversity of forests in Africa. If the already critically endangered elephants become extinct, rainforest of central and west Africa, the second largest...
Wolves on an Alaskan island caused a deer population to plumet and switched to primarily eating sea otters in just a few years, a finding scientists at Oregon State University and the Alaska Department of Fish and Game believe is the first case of sea otters becoming the primary food source for a land-based predator.
It's hard out there for a shark. A critical barometer to the health of ocean ecosystems, shark and ray populations have faced significant global declines from overfishing, habitat loss, and environment degradation. Add to the mix a slow reproductive cycle—female great white sharks take approximately 30 years to reach sexual maturity, for instance—and the broader logistical challenges of trying...
Curtin University-led research into the durability and age of an ancient asteroid made of rocky rubble and dust, revealed significant findings that could contribute to potentially saving the planet if one ever hurtled toward Earth.