- ScienceDaily
- 20/7/24 22:14
Alaska is getting wetter. A new study spells out what that means for the permafrost that underlies about 85% of the state, and the consequences for Earth's global climate.
Alaska is getting wetter. A new study spells out what that means for the permafrost that underlies about 85% of the state, and the consequences for Earth's global climate.
Scientists have found that genetic mutations in MRSA allow it to evolve and become more resistant to antibiotics such as penicillin.
Most meteorites that have landed on Earth are fragments of planetesimals, the very earliest protoplanetary bodies in the solar system. Scientists have thought that these primordial bodies either completely melted early in their history or remained as piles of unmelted rubble. But a family of meteorites has befuddled researchers since its discovery in the 1960s. The diverse fragments, found all...
Researchers have discovered a new method to treat human herpes viruses. The new broad-spectrum method targets physical properties in the genome of the virus rather than viral proteins, which have previously been targeted. The treatment consists of new molecules that penetrate the protein shell of the virus and prevent genes from leaving the virus to infect the cell. It does not lead to resistance...
Primates with large brains can master more complex hand movements than those with smaller brains. However, fine motor skills such as using tools can take time to learn, and humans take the longest of all. Large-brained species such as humans and great apes do not actually learn more slowly than other primates but instead start later, researchers have shown.
New software techniques make lighting in computer-generated images look more realistic for use in video games, extended reality, and scientific visualization tools.
Loss of smell, or anosmia, is one of the earliest and most commonly reported symptoms of COVID-19. A new study identifies the olfactory cell types most vulnerable to infection by the novel coronavirus. Surprisingly, sensory neurons involved in smell are not among the vulnerable cell types.
In a meta-analysis, researchers found that sputum was more accurate than nasopharyngeal or oropharyngeal swabs. The study also shows early testing increased rates of COVID-19 diagnosis.
Most neurons are created during embryonic development and have no ''backup'' after birth. Researchers have generally believed that their survival is determined nearly extrinsically, or by outside forces, such as the tissues and cells that neurons supply with nerve cells. Scientists have challenged this notion and reports the continuous survival of neurons is also intrinsically programmed during...
While chatbots are becoming more widespread in health care, it's important to implement them thoughtfully and constantly evaluate them in a variety of ways, authors argue.
Heart transplants, donor hearts, and transplant waitlists all fell sharply at the start of the COVID-19 pandemic in the United States, researchers have found.
Researchers describe a new device, the ''stretched-pulse soliton Kerr resonator,'' that creates an ultrafast laser pulse that is freed from the physical limits endemic to sources of laser light and the limits of the sources' wavelengths. Applications include spectroscopy, frequency synthesis, distance ranging, and pulse generation.
New research finds that individuals with cardiovascular disease risk factors who switched to high-deductible health plans (HDHPs) did not experience increased risk of heart attack or stroke.
Using a combination of experiments and mathematical modeling, a team of researchers from the Virginia Tech Department of Biological Sciences in the College of Science and the Fralin Life Sciences Institute are beginning to unravel the mechanisms that lie behind tetraploidy - a chromosomal abnormality that is often found in malignant tumors.
Scientists have found that 43% of Staphylococcus bacteria found on exercise equipment in university gyms were ampicillin-resistant, with 73% of those isolates being resistant to multiple additional drugs.
In a test of antiviral effectiveness against the virus that causes COVID-19, an extract from edible seaweeds substantially outperformed remdesivir, the current standard antiviral used to combat the disease.
A new study has identified 21 existing drugs that stop the replication of SARS-CoV-2, the virus that causes COVID-19.
The brain never processes the same information in the same way. Scientists have found out why this is the case and how it works. A decisive role plays a critical state of the neuronal networks.
Desert conditions are harsh, and mosses often spend much of the year in a dormant condition, desiccated and brown, until rain comes. Researchers discovered two species of moss that found a hiding place under translucent milky quartz where they can stay moist and green and continue to photosynthesize and grow while other mosses on the soil surface go dormant. This is the first green plant known to...
A new, 3D-printed technology that was inspired by Lego block toys is designed to help heal broken bones, and could one day even lead to lab-made organs for human transplant.
If physical distancing measures in the United States are relaxed while there is still no COVID-19 vaccine or treatment and while personal protective equipment remains in short supply, the number of resulting infections could be about the same as if distancing had never been implemented to begin with, reports a team of mathematicians and scientists.
Bacteriophages, or phages, may play a significant role in treating complex bacterial infections in prosthetic joints, according to new research. The findings suggest phage therapy could provide a potential treatment for managing such infections, including those involving antibiotic-resistant microbes.
The novel coronavirus changes the appearance of its messenger RNA cap to trick the host cell into not recognizing it is foreign, according to a new study.
The ongoing disruptive changes from efforts to reduce the spread of COVID-19 are having a substantial negative impact on the physical and mental well-being of parents and their children across the United States, according to a new national survey.
A new study looks at the growth of global livestock farming and the threat to biodiversity, and the health risks to both humans and domesticated animals.