- PhysOrg
- 22/1/31 23:09
An oil spill in eastern Ecuador has reached a nature reserve and polluted a river that supplies water to indigenous communities, the country's environmental ministry said Monday.
3,140 articles mezi dny 1.1.2022 a 31.1.2022
An oil spill in eastern Ecuador has reached a nature reserve and polluted a river that supplies water to indigenous communities, the country's environmental ministry said Monday.
Bulldozers digging for an Egyptian-funded housing project in the Gaza Strip unearthed the ruins of a tomb dating back to the Roman era, Hamas authorities said Monday.
When it comes to measuring global warming, humidity, not just heat, matters in generating dangerous climate extremes, a new study finds.
A new study finds brain function boosted by daily exercise in middle-aged and older adults.
When did the Earth reach oxygen levels sufficient to support animal life? Researchers have discovered that a rise in oxygen levels occurred in step with the evolution and expansion of complex, eukaryotic ecosystems. Their findings represent the strongest evidence to date that extremely low oxygen levels exerted an important limitation on evolution for billions of years.
Access to the gig economy may help facilitate the creation of new businesses, according to a new study.
As the world searches for and demands more sustainable sources of energy and materials, plant biomass may provide the solution by serving as a renewable resource for biomaterials and biofuel production. However, until now, the complex physical and chemical interactions in plant biomass have been a challenge in post-harvest processing.
The first report of its kind in Canada to examine how women use public transit suggests their travel needs aren't always being met by standard planning and service models.
With new algorithms and supercomputers, an incredibly detailed radio map of the universe has been created. Now astronomers can look at radio data of galaxies with much more precision. This research was published in Nature Astronomy by Leiden University Ph.D. student Frits Sweijen and colleagues.
When did the Earth reach oxygen levels sufficient to support animal life? Researchers from McGill University have discovered that a rise in oxygen levels occurred in step with the evolution and expansion of complex, eukaryotic ecosystems. Their findings represent the strongest evidence to date that extremely low oxygen levels exerted an important limitation on evolution for billions of years.
Even fans of black-and-white film can't deny that color brought new life to photography and motion pictures. And when it comes to learning what happens inside the body, there's no substitute for color. Were it possible, for example, to map out real-time gene expression in our body's cells using contrasting colors, scientists would gain a glimpse of vital biological processes that are currently...
Antibiotics have allowed for the widespread control of bacterial infections, which had been the leading cause of death historically. However, the overuse of traditional antibiotics in humans and animals has resulted in the emergence of stronger, more potent bacterial strains that are no longer treatable with conventional antibiotics.
Oxygen and sugar are the basis of life for animals, plants, fungi and many bacteria. The metabolic process called respiration makes it possible to convert food into energy for the cells. Biochemist Prof. Dr. Carola Hunte and her team from the Cluster of Excellence CIBSS at the University of Freiburg have now visualized for the first time with unparalleled precision how an assembly of protein...
Researchers provide high-resolution electron microscopy analysis of the molecular machinery within the respiratory chain.
The nucleus is guarded by a highly secure door, the so-called nuclear pore, that controls the transport of substances from the cytoplasm to the cell nucleus and back. A research group has now shown that different shuttle proteins occupy the nuclear pore to prevent unsolicited leakage of molecules. These proteins form an escape-proof, failsafe mechanism by compensating for one another to fortify...
Theoretical chemists have constructed a molecular gyroscope that can be controlled remotely by light. They also succeeded in characterizing the rotational movements of this synthetic nanomachine with computer simulations.
Most bacteria have the ability to form communities, biofilms, that adhere to a wide variety of surfaces and are difficult to remove. This can lead to major problems, for example in hospitals or in the food industry. Now, an international team has studied a model system for biofilms at the synchrotron radiation facilities BESSY II at HZB and the ESRF and found out what role the structures within...
Despite the many potential applications of seawater batteries (SWBs), the limited performance of available materials has hindered their commercialization. To tackle this issue, scientists have developed a novel co-doped carbon material for the anode of SWBs. Their straightforward synthesis route and the high performance of the developed anode material will pave the way for the widespread adoption...
While COVID-19 disease significantly impacts many pregnant women, the rates of transmission from mother to baby in pregnancy are very low. A new study has demonstrated that ACE-2, the receptor that allows SARS-CoV-2 to enter cells, is found in lower levels in the placentas of women with COVID-19 in pregnancy compared to women with normal (COVID negative) pregnancies.
When it comes to coping with climate change, there may be two types of people: those who take action to try to improve the environment and those who don't bother because they don't believe their actions will make a difference. Knowing who's who could help policymakers communicate more effectively about environmental issues, new research suggests.
A Phase 1 clinical trial has demonstrated the safety and efficacy of a novel immunotherapy drug in the treatment of HIV.
A research team has engineered novel nanoparticles to serve as 'molecular traps' to target SARS-CoV-2, the virus that spreads COVID-19. The traps bind to SARS-CoV-2 and prevent it from attacking macrophages.
A new study involving more than 100 scientists from across the globe and the largest forest database yet assembled estimates that there are about 73,000 tree species on Earth, including about 9,200 species yet to be discovered.
Second world war codebreaking calculations used at Bletchley Park find 9,000 of those species are yet to be discoveredThere are an estimated 73,300 species of tree on Earth, 9,000 of which have yet to be discovered, according to a global count of tree species by thousands of researchers who used second world war codebreaking techniques created at Bletchley Park to evaluate the number of unknown...
Why do some young men turn to crime, while others don't? An international study shows that preferences such as risk tolerance, impatience and altruism as well as self-control can predict who will commit crime. Risk-tolerant, impatient young men are more likely to commit property crime, while people with low self-control tend to commit violent, drug and sexual offenses.
A new study involving more than 100 scientists from across the globe and the largest forest database yet assembled estimates that there are about 73,000 tree species on Earth, including about 9,200 species yet to be discovered.
A new study by a team of researchers from Israel and Ghana has brought the first evidence of nonrandom mutation in human genes, challenging a core assumption at the heart of evolutionary theory by showing a long-term directional mutational response to environmental pressure. Using a novel method, researchers led by Professor Adi Livnat from the University of Haifa showed that the rate of...
Researchers from the Okinawa Institute of Science and Technology Graduate University (OIST) have used microscopic strands of DNA to guide the assembly of gel blocks that are visible to the naked eye.
Portal origin URL: NASA Asteroid Tracking System Now Capable of Full Sky SearchPortal origin nid: 476946Published: Monday, January 31, 2022 - 14:29Featured (stick to top of list): noPortal text teaser: The NASA-funded ATLAS has reached a new milestone by becoming the first survey capable of searching the entire dark sky every 24 hours for near-Earth objects that could pose...
Researchers developed a technique in laboratory animals to consistently and reproducibly open the blood-brain barrier. This barrier serves as a barricade securing the brain from the external world blocking out certain environmental toxins, but also prevents drug therapies from reaching their intended targets. The new technique is based on a routine procedure for removing clots from the brain's...
Podcaster has made numerous disputed claims about virus, vaccines and lockdownsJoe Rogan pledges to ‘try harder’ after Spotify misinformation controversySee all our coronavirus coverageSpotify has said it will add “content advisories” to episodes of Joe Rogan’s podcast discussing Covid after the singers Neil Young and Joni Mitchell accused the streaming service of helping to spread Covid...
Rice University scientists are using machine-learning techniques to streamline the process of synthesizing graphene from waste through flash Joule heating.
Beef producers in the upper Midwest know grazing land is in short supply. With more acres being developed or converted to cropland, producers who want to expand their cow-calf operations are looking for alternatives to traditional pasture management.
New research suggests that ancient trees possess far more than an awe-inspiring presence and a suite of ecological services to forests—they also sustain the entire population of trees' ability to adapt to a rapidly changing environment.
Two researchers from the University of Ottawa are the first to map out all the glaciers that end in the ocean in the Northern Hemisphere and provide a measure of their rate of change over the last 20 years. Their findings will help better understand—and perhaps predict—the impact of climate change north of the equator.
The carbon material graphene has no well-defined thickness; it merely consists of one single layer of atoms. It is therefore often referred to as a "two-dimensional material." Trying to make a three-dimensional structure out of it may sound contradictory at first, but it is an important goal: if the properties of the graphene layer are to be exploited best, then as much active surface area as...
Beef producers in the upper Midwest know grazing land is in short supply. With more acres being developed or converted to cropland, producers who want to expand their cow-calf operations are looking for alternatives to traditional pasture management. New research shows cow-calf pairs can be managed in drylots throughout the summer grazing period with few negative consequences.
Researchers have mapped out all the glaciers that end in the ocean in the Northern Hemisphere and provide a measure of their rate of change over the last 20 years. Their findings will help us better understand -- and perhaps predict -- the impact of climate change north of the equator.
Scientists are using machine learning techniques to streamline the process of synthesizing graphene from waste through flash Joule heating.
Researchers have used microscopic strands of DNA to guide the assembly of gel blocks that are visible to the naked eye.
A growth factor protein produced by rare immune cells in the intestine can protect against the effects of inflammatory bowel disease (IBD), according to a new discovery.
The priming of glioblastoma with a burst of radiation increased dramatically the uptake of extracellular vesicles-based immunotherapy by the tumor and the surrounding microenvironment, halting tumor growth, inducing anti-tumor immunity, and prolonging survival in animal models. In glioblastomas primed with radiation, extracellular vesicles allowed the immunotherapy to cross the blood-brain...