Culture
People traditionally think that lungs and limbs are key innovations that came with the vertebrate transition from water to land. But in fact, the genetic basis of air-breathing and limb movement was already established in our fish ancestor 50 million years earlier. This, according to a recent genome mapping of primitive fish conducted by the University of Copenhagen, among others. The new study changes our understanding of a key milestone in our own evolutionary history.
ATLANTA - Researchers at Yerkes National Primate Research Center, Emory University, have developed a COVID-19 vaccine that has proven safe and effective in mice and monkeys. Results from this National Institute of Allergy and Infectious Diseases (NIAID)-funded study are published online today in Immunity.
New research carried out by City, University of London data scientist, Dr Andrea Baronchelli, and colleagues into the dark web marketplace (DWM) trade in products related to COVID-19, has revealed the need for the continuous monitoring of dark web marketplaces (DWMs) especially in light of the current shortage and availability of coronavirus vaccines.
In data gathered and analyzed over 13 years, the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) Physics Frontiers Center (PFC) has found an intriguing low-frequency signal that may be attributable to gravitational waves.
Researchers have developed a new technique to protect rice seeds against fungal infections that can ruin up to half of all rice crops in the world. The biocontrol method, which involves inoculation of flowers with a different fungus that doesn't cause disease and using seeds harvested from the flower to grow crops, is even better at protecting rice plants from diseases than existing fungicide approaches, and could also be used against similar pathogens that affect other staple crops.
The new therapeutic approach is based on shutting down the viral hepatitis B genome located in the nucleus of infected liver cells. Upon infection of the liver cell, the viral genome is transformed inside the nucleus into a closed circular DNA molecule. This deoxyribonucleic acid is a stable molecule known as covalently closed circular DNA (cccDNA) and serves as the template for the production of new viruses. The cccDNA represents the central reservoir of the hepatitis B viruses and enables their persistence in the liver. The virologist Prof. Dr.
A new analysis of a horse previously believed to be from the Ice Age shows that the animal actually died just a few hundred years ago--and was raised, ridden and cared for by Native peoples. The study sheds light on the early relationships between horses and their guardians in the Americas.
The findings, published today in the journal American Antiquity, are the latest in the saga of the "Lehi horse."
For a girl in Ethiopia, her mother's wealth can protect her from becoming a child bride - but if a father prefers child marriage, his own wealth may increase the likelihood that she will be married before 18, according to a Rutgers University-New Brunswick study.
Getting children to eat their vegetables can seem like an insurmountable task, but nutrition researchers at The University of Texas at Austin have found one way: school gardens and lessons on using what's grown in them.
Humans, wildlife, and the environment are all interconnected and play a role in one another's health and well-being. Sentinel species, such as birds, are good indicators of environmental health, and they can send subtle warning signs that humans may be in danger next.
As the coronavirus pandemic continues to devastate communities worldwide, Black Americans who face racial discrimination in hospitals and doctor's offices weather additional stresses that can exacerbate threats from COVID-19. A new University of Georgia study examines the interplay between the perceptions of coronavirus threat and psychological distress among Black Americans.
The additional stresses arise from the prevalent belief among Black Americans worried that they might not recover from how hospitals treat them if they become infected with the coronavirus.
BOSTON - Tiny particles of air pollution -- called fine particulate matter -- can have a range of effects on health, and exposure to high levels is a known risk factor for cardiovascular disease. New research led by investigators at Massachusetts General Hospital (MGH) reveals that fine particulate matter has a detrimental impact on cardiovascular health by activating the production of inflammatory cells in the bone marrow, ultimately leading to inflammation of the arteries.
A pilot program to offer mental health services offered resident physicians at the University of Colorado School of Medicine provides a model for confidential and affordable help, according to an article published today by the journal Academic Medicine.
Inflammation is supposed to help protect us--it's part of an immune response to fight off pathogens and clear infections. But patients with cardiac disease often have chronic inflammation that damages their hearts, even with no infection present.
A new white paper from The Gerontological Society of America (GSA) highlights the variety of challenges that persons with dementia-related psychosis and their caregivers have encountered during moves through different health care settings -- and proposes strategies to address these challenges.