363 articles from THURSDAY 9.7.2020
Neonatal exposure to antigens of commensal bacteria promotes broader immune repertoire
- ScienceDaily
- 20/7/9 23:28
Researchers have added fresh evidence that early exposure to vaccine-, bacterial- or microbiota-derived antigens has a dramatic effect on the diversity of antibodies an adult mammal will have to fight future infections by pathogens. This antibody diversity is called the clonal repertoire -- basically different single cells with distinct antibody potential that can multiply into a large clone of...
Community initiative increases teenage use of effective contraception
- ScienceDaily
- 20/7/9 23:28
Study finds that teenagers utilize Long-Acting Reversible Contraception (LARC) at a rate five times higher than the United States as a whole.
A complex gene program initiates brain changes in response to cocaine
- ScienceDaily
- 20/7/9 23:28
Researchers used single-nucleus RNA sequencing to compare transcriptional responses to acute cocaine in 16 unique cell populations from the brain nucleus accumbens. The atlas is part of a major study that used multiple cutting-edge technologies to describe a dopamine-induced gene expression signature that regulates the brain's response to cocaine. The study shows neurobiological processes that...
Key role of immune cells in brain development
- ScienceDaily
- 20/7/9 23:28
Researchers have identified how specific brain cells interacting during development could be related to neurological and neuropsychiatric diseases, including some that occur later in life.
New study supports remdesivir as COVID-19 treatment
- ScienceDaily
- 20/7/9 23:28
A new study found that remdesivir potently inhibited SARS-CoV-2, the virus which causes COVID-19, in human lung cell cultures and that it improved lung function in mice infected with the virus.
Salmonella biofilm protein causes autoimmune responses -- Possible link with Alzheimer's
- ScienceDaily
- 20/7/9 23:28
Scientists have demonstrated that a Salmonella biofilm protein can cause autoimmune responses and arthritis in animals.
New evidence of long-term volcanic, seismic risks in northern Europe
- ScienceDaily
- 20/7/9 23:28
An ancient European volcanic region may pose both a greater long-term volcanic risk and seismic risk to northwestern Europe than scientists had realized, geophysicists report. The densely populated area is centered in the Eifel region of Germany, and covers parts of Belgium, the Netherlands, France and Luxembourg.
CT of coronavirus disease (COVID-19) versus CT of influenza virus pneumonia
- ScienceDaily
- 20/7/9 23:28
A new article investigating the differences in CT findings between coronavirus disease (COVID-19) pneumonia and influenza virus pneumonia found that most lesions from COVID-19 were located in the peripheral zone and close to the pleura, whereas influenza virus was more prone to show mucoid impaction and pleural effusion. The more important role of CT during the present pandemic is in finding...
A new role for a tiny linker in transmembrane ion channels
In the molecular-level world of ion channels—passageways through membranes that carry signals in a cell's environment and allow it to respond—researchers have debated about the role of a small piece of the channel called a linker, says computational biophysicist Jianhan Chen at the University of Massachusetts Amherst.
Spacewatch: Nasa asteroid mission passes key milestone
Design review stage passed for craft intended to visit iron-and-nickel mini-world in 2022Nasa’s mission to explore a metal-rich asteroid passed a key milestone in its development this week. The critical design review makes sure everyone is satisfied that the spacecraft will work as expected. Now that the review has been passed, engineers can begin making the various bits of spacecraft hardware...
Study finds food safety practices benefit small farmers
The costs of implementing food safety practices to prevent foodborne illnesses have been viewed as a threat to the financial well-being of small farms, which must pay a higher percentage of their annual sales than larger farms to meet safety standards.
Science education community should withdraw from international tests, study says
The science community should withdraw from involvement in international tests such as PISA because they have forced schools to adopt "narrow" curricula and pedagogies, a study says.
Bats offer clues to treating COVID-19
Bats are often considered patient zero for many deadly viruses affecting humans, including Ebola, rabies, and, most recently, the SARS-CoV-2 strain of virus that causes coronavirus.
Study looks at life inside and outside of seafloor hydrocarbon seeps
Microbial cells are found in abundance in marine sediments beneath the ocean and make up a significant amount of the total microbial biomass on the planet. Microbes found deeper in the ocean, such as in hydrocarbon seeps, are usually believed to have slow population turnover rates and low amounts of available energy, where the further down a microbe is found, the less energy it has available.
Native bees also facing novel pandemic
Move over, murder hornets. There's a new bee killer in town.
Discovery reveals how plants make cellulose for strength and growth
New research from the University of Virginia School of Medicine reveals how plants create the load-bearing structures that let them grow—much like how building crews frame a house.
Endangered California condors in Sequoia National Park for the first time in 50 years
For the first time in nearly 50 years, California condors have been spotted at Sequoia National Park, wildlife officials announced.
New study predicts coral bleaching and coral-eating starfish invasions months in advance
A new study by the Marine Laboratory at the University of Guam may help researchers predict coral bleaching months earlier than current tools, and, for the first time, may help predict invasion events of coral-eating crown-of-thorns starfish. The study was published on May 8 in Scientific Reports.
Covid-19 cases tied to fraternity parties disrupt UC Berkeley’s reopening plans
Forty-seven cases make it ‘harder to imagine bringing our campus community back’ as planned, university saysPlans for the fall semester at the University of California, Berkeley, are in question after 47 new Covid-19 cases tied to fraternity parties emerged in the past week. University officials warn the outbreak could jeopardize the ability to move forward with in-person classes in the months...
Science education community should withdraw from international tests, experts urge
- ScienceDaily
- 20/7/9 21:01
The science community should withdraw from involvement in international tests such as PISA because they have forced schools to adopt 'narrow' curricula and pedagogies, a study says.