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Dong and colleagues studied well-preserved plant fossils from the Middle-Late Jurassic Daohugou Bed in eastern Inner Mongolia, northeastern China. These fossils closely resemble the extant catkin-yews Amentotaxus. They provide unequivocal evidence that the catkin-yews have undergone little morphological change over at least ~160 million years. Like ginkgo, the catkin-yews are living fossils that provide an important new example of evolutionary stasis.
Based on their experience treating COVID-19, Columbia physicians have assembled critical information about the coronavirus's effects on organs outside the lungs.
Whether you decided to engage in social distancing in the early stages of COVID-19 depended on how much information your working memory could hold. Researchers found individuals with higher working memory capacity have an increased awareness of benefits over costs of social distancing and show more compliance with recommended social distancing guidelines during the early stage of the COVID-19 outbreak. The UC Riverside-led study offers potential strategies to mitigate social-distancing noncompliance in a public-health crisis.
Theft law needs reform so the crime is based on consent not dishonesty - reducing the risk of judgements which lack 'common sense' -- a new study warns.
In Current Biology, Medical University of South Carolina researchers report the results of a study using artificial intelligence and human brain studies to compare brain areas involved in mental imagery and vision. Their findings suggest that mental imagery and vision are similar, but that low-level visual areas are activated in a less precise manner with mental imagery. This suggests that the brain is more tuned and sensitive to what it sees than what it imagines.
A groundbreaking study is the first to analyze the relationship between group behaviors, group type, group dynamics, and kinship of beluga whales in 10 locations across the Arctic. Results show that not only do beluga whales regularly interact with close kin, including close maternal kin, they also frequently associate with more distantly related and unrelated individuals. Findings will improve the understanding of why some species are social, how individuals learn from group members and how animal cultures emerge.
A suite of articles in The Journal of Infectious Diseases contains the first swath of important data from the world's largest study of cardiovascular disease (CVD) prevention in people with HIV.
Researchers at Baylor College of Medicine and Texas Children's Hospital have developed a novel noninvasive approach called nano-radiomics that analyzes imaging data to assess changes in the tumor microenvironment that are not detected with conventional imaging methods.
A new Boston University School of Public Health (BUSPH) study published in the Nature journal Humanities & Social Sciences Communications, shows that gun ownership means very different things in different parts of the United States.
Scientists at Pritzker Molecular Engineering have developed a way to stretch and strain liquid crystals to generate different colors.
Leading health disparities experts hope health institutions will take advantage of a new cancer health equity research volume recently released that curates the latest developments in how researchers can best address health disparities so all patients receive good quality care.
New findings reframe the traditional view of face blindness as a disorder arising strictly from deficits in visual perception of facial features. Findings suggest prosopagnosia may be a more complex disorder rooted in multiple deficits. Findings can help inform the design of tools to improve face recognition in those with the condition.
A new single-cell RNA sequencing analysis of more than 59,000 cells from three different patient cohorts provides a detailed look at patients' immune responses to severe cases of COVID-19.
New research explores how lower-latitude oceans drive complex changes in the Arctic Ocean, pushing the region into a new reality distinct from the 20th-century norm.
New research published in Cell Metabolism has identified for the first time the specific brain cells that control how much sugar you eat and how much you crave sweet tasting food. The study by researchers at the University of Iowa and the University of Copenhagen specifically identifies the brain cells that respond to the hormone FGF21 to regulate sugar intake and sweet taste preference.
Biologists from the University of Bayreuth have discovered a uniquely rapid form of regeneration in injured neurons and their function in the central nervous system of zebrafish. They studies the Mauthner cells, which are solely responsible for the escape behaviour of the fish, and previously regarded as incapable of regeneration. However, their ability to regenerate crucially depends on the location of the injury.
As of May 2020, nursing home residents account for a staggering one-third of the more than 80,000 deaths due to COVID-19 in the U.S. This pandemic has resulted in unprecedented threats--like reduced access to resources needed to contain and eliminate the spread of the virus--to achieving and sustaining care quality even in the best nursing homes. Active engagement of nursing home leaders in developing solutions responsive to the unprecedented threats to quality standards of care delivery is required.
NASA's Aqua satellite revealed better organization and colder cloud top temperatures in Tropical Storm Cristina, indications that the storm was strengthening.
Changing practices in the HIV/co-infections research community so that women, providers, and policy makers can make evidence-informed decisions around the use of medications during pregnancy is the goal of the new report, Ending the Evidence Gap for Pregnant Women around HIV and Co-infections: A Call to Action, issued today by the Pregnancy and HIV/AIDS: Seeking Equitable Study (PHASES) Working Group - an international and interdisciplinary team of 26 experts.
In the male-dominated field of surgery, female faculty of training programs tend to receive lower scores than male faculty on their teaching evaluations, which are important for career advancement, past research has found. A new study suggests progress in this apparent gender bias: Among 21 U.S. general surgery residency programs, female faculty scored slightly better overall than male faculty did on teaching evaluations by surgeons-in-training, even in programs with the fewest women.