- PhysOrg
- 21/4/19 22:14
A first-of-its-kind study led by The University of Texas at Austin has found that rock weathering and water storage appear to follow a similar pattern across undulating landscapes where hills rise and fall for miles.
305 articles from MONDAY 19.4.2021
A first-of-its-kind study led by The University of Texas at Austin has found that rock weathering and water storage appear to follow a similar pattern across undulating landscapes where hills rise and fall for miles.
The fact that the human body is made up of cells is a basic, well-understood concept. Yet amazingly, scientists are still trying to determine the various types of cells that make up our organs and contribute to our health.
A new scientific discovery has recorded how ghost currents and sediments can 'undo' the force of gravity. The new theory helps explain obscure events in which suspended sediment particles mysteriously move upward, not downward, on the slope of submarine canyons of the deep sea.
Antibiotics on the cocoon protect the offspring of beewolves, a group of digger wasps, from detrimental fungi. These protective substances are produced by symbiotic bacteria of the genus Streptomyces, which live in these insects. In a new study in PNAS, researchers from the Max Planck Institute for Chemical Ecology and the University of Mainz, together with an international team, showed that these...
A new type of collective behavior in ants has been revealed by an international team of scientists, headed by biologist Professor Iain Couzin, co-director of the Cluster of Excellence "Centre for the Advanced Study of Collective Behavior" at the University of Konstanz and director at the co-located Max Planck Institute of Animal Behavior, and Matthew Lutz, a postdoctoral researcher in Couzin's...
Diversity in diet plays a role in the complexity of venom in pit vipers such as rattlesnakes, copperheads and cottonmouths.
What keeps some plants squatting close to the soil while others—even those closely related—reach high for the skies?
New research published today in the Proceedings of the National Academy of Sciences (PNAS) shows that land use by human societies has reshaped ecology across most of Earth's land for at least 12,000 years. The research team, from over ten institutions around the world, revealed that the main cause of the current biodiversity crisis is not human destruction of uninhabited wildlands, but rather the...
Our planet's worst mass extinction event happened 252 million years ago when massive volcanic eruptions caused catastrophic climate change. The vast majority of animal species went extinct, and when the dust settled, the planet entered the early days of the Age of Dinosaurs. Scientists are still learning about the patterns of which animals went extinct and which ones survived, and why. In a new...
A Nova Scotia company that injects carbon dioxide into concrete has taken home a multi-million-dollar grand prize in a global competition aimed at tackling climate...
Experts have narrowed the group of individuals with prior allergies who should see an allergist before receiving a COVID-19 vaccine.
Engineers find that cancer cells exhibit a unique mode of migration on squishy materials, which are similar to biological tissues. In contrast, cell movement - a process central to cancer metastasis and other biological processes - is typically studied on very rigid materials.
Researchers have developed a topical drug that regenerates and restores the function of erectile nerves damaged by radical prostatectomy, the most common treatment for localized prostate cancer. The drug was tested in rats.
Refuting an earlier study, researchers found that epidural anesthesia, commonly administered for pain relief during labor, does not increase the risk for autism in children.
Researchers and physicians have found that early deaths of workers using methylene chloride paint strippers are on the rise. The solvent is widely used in paint strippers, cleaners, adhesives and sealants.
Someday, scientists believe, tiny DNA-based robots and other nanodevices will deliver medicine inside our bodies, detect the presence of deadly pathogens, and help manufacture increasingly smaller electronics. Researchers took a big step toward that future by developing a new tool that can design much more complex DNA robots and nanodevices than were ever possible before in a fraction of the time....
Immune responses in SARS-CoV-2 patients might provide only incomplete protection against SARS-CoV-2 variants from minks.
Various beetle species have gobbled through grain stores and weakened food production worldwide since ancient times. Now, researchers seek to exploit beetles' greatest strength against them -- their precisely regulated mechanism of balancing fluids.
Researchers used platinum and aluminum compounds to create a catalyst which enables certain chemical reactions to occur more efficiently than ever before. The catalyst could significantly reduce energy usage in various industrial and pharmaceutical processes. It also allows for a wider range of sustainable sources to feed the processes, which could reduce the demand for fossil fuels required by...
Using machine learning methods, researchers can predict the structure formation of functionalized molecules at the interfaces of hybrid materials. Now they have also succeeded in looking behind the driving forces of this structure formation.
A study has used long-term observations to investigate the complex interplay between fluctuations in the equatorial current system and variations in oxygen content. During the last 15 years the intensification of upper-ocean currents resulted in an increasing oxygen content in the equatorial region.
Scientists have sequenced ancient DNA from soil for the first time and the advance will transform what is known about everything from evolution to climate change. The findings have been described as the 'moon landings' of genomics because researchers will no longer have to rely on finding and testing fossils to determine genetic ancestry, links and discoveries - and it is thanks to Stone Age black...
For some patients, adding aspirin to a direct oral anticoagulant is an equation that rarely adds up.
A new gene therapy for one of the most common forms of congenital blindness was safe and improved patients' vision, according to initial data from a clinical trial.
Researchers have now analyzed the optoelectronic properties of rust (haematite) and other metal oxides in unprecedented detail. Their results show that the maximum achievable efficiency of haematite electrodes is significantly lower than previously assumed. The study demonstrates ways to assess new photoelectrode materials more realistically.
University of Minnesota Medical School researchers revealed why some glioblastoma patients see exceptional benefits from chemotherapy and survive beyond expectations.
Treating people with Type 2 diabetes with a new once-a-week injectable insulin therapy proved to be safe and as effective as daily insulin injections, according to the results of two international clinical trials. The studies suggest that the once-weekly treatment could provide a convenient alternative to the burden of daily insulin shots for diabetes patients.
A new study finds a naturally occurring 'earthquake gate' that decides which earthquakes are allowed to grow into magnitude 8 or greater. Sometimes, the 'gate' stops earthquakes in the magnitude 7 range, while ones that pass through the gate grow to magnitude 8 or greater, releasing over 32 times as much energy as a magnitude 7.
NASA conducted its first flight on another planet early Monday morning, a short hop for a small chopper named Ingenuity which demonstrated technology that could prove critical to the future of space exploration.
Boston College seismologist John Ebel and his colleagues have noted a pattern for some large California earthquakes: magnitude 4 or larger earthquakes occur at a higher rate along a fault in the two decades or more prior to a magnitude 6.7 or larger earthquake on the fault.
Airbnb hosts in college towns increase their listing prices much more than hotels when there are home football games against rival teams. Hosts experience a 78 percent reduction in rental income by listing prices too high, according to a new study by the University of California San Diego's Rady School of Management.
A new study finds a naturally occurring "earthquake gate" that decides which earthquakes are allowed to grow into magnitude 8 or greater.
Inside your body, cell movement plays a crucial role in many significant biological processes, including wound healing, immune responses and the potential spread of cancer.
NASA has made history by successfully flying the mini helicopter Ingenuity on Mars, the first powered flight on another planet.
A once-prized coffee species, rediscovered in West Africa decades after it was thought to have disappeared, is just as tasty as high-end Arabica and more resilient to climate change, scientists said Monday, adding that the forgotten bean could help future-proof quality coffee.
Data from a GPS network in Colombia have revealed a shallow and fully locked part on the Caribbean subduction zone in the country that suggests a possible large earthquake and tsunami risk for the northwest region.
The first time people here saw a sinkhole, they thought a small asteroid had slammed into the Dead Sea's salt-encrusted shore.
American tailpipes have played an outsized role in global warming. In 2019, transportation accounted for 29% of the country’s human-generated emissions, the most of any sector tracked by the Environmental Protection Agency—and the U.S. is the world’s second-largest carbon emitter. The Biden Administration wants to clean up transportation’s dirty reputation, and make...
Portal origin URL: Earth Day Connections: NASA Investigates VegetationPortal origin nid: 470261Published: Monday, April 19, 2021 - 13:00Featured (stick to top of list): noPortal text teaser: From the vantage point of space, NASA’s fleet of Earth-observing satellites investigates connections between ecosystems that are continents apart, or right next door.Portal...
2021 must be the year of action for protecting people against the "disastrous" effects of climate change, the United Nations insisted Monday, ahead of a crucial US-convened summit.
A new study outlines the need for materials advances in the hardware that goes into making quantum computers if these futuristic devices are to surpass the abilities of the computers we use today.
Hydrogen will be needed in large quantities as an energy carrier and raw material in the energy system of the future. To achieve this, however, hydrogen must be produced in a climate-neutral way, for example through so-called photoelectrolysis, by using sunlight to split water into hydrogen and oxygen. As photoelectrodes, semiconducting materials are needed that convert sunlight into electricity...