Culture
ALBUQUERQUE, N.M. -- Sometime between 50,000 and 70,000 years ago, prehistoric humans took their first steps into Sahul, an ancient landmass made up of modern Australia, New Guinea and Tasmania. But nobody knows which way they went after that.
"One of the really big unanswered questions of prehistory is how Australia was populated in the distant past. Scholars have debated it for at least 150 years," said Sandia National Laboratories archaeologist and remote sensing scientist Devin White.
A year into the COVID-19 pandemic, mass vaccinations have begun to raise the tantalizing prospect of herd immunity that eventually curtails or halts the spread of SARS-CoV-2. But what if herd immunity is never fully achieved - or if the mutating virus gives rise to hyper-virulent variants that diminish the benefits of vaccination?
Those questions underscore the need for effective treatments for people who continue to fall ill with the coronavirus. While a few existing drugs show some benefit, there's a pressing need to find new therapeutics.
An abnormal build up of carbohydrates -- sugars and starches -- in the kernels and leaves of a mutant line of corn can be traced to one misregulated gene, and that discovery offers clues about how the plant deals with stress.
May 3, 2021
Using social values for profit cheapens them, a new study cautions.
Toronto - Businesses sometimes align themselves with important values such as a clean environment, feminism, or racial justice, thinking it's a win-win: the value gets boosted along with the company's bottom line.
But be careful, warns new research from the University of Toronto's Rotman School of Management.
Using these values primarily for self-interested purposes such as profit or reputation can ultimately undermine their special status and erode people's commitment to them.
TORONTO - Scientists at the Krembil Brain Institute, part of University Health Network (UHN), in collaboration with colleagues at the Centre for Addiction and Mental Health (CAMH), have used precious and rare access to live human cortical tissue to identify functionally important features that make human neurons unique.
This experimental work is among the first of its kind on live human neurons and one of the largest studies of the diversity of human cortical pyramidal cells to date.
LUGANO, Switzerland, 3 May 2021 - As breast cancer becomes a largely curable disease, with more than 70% of women surviving at least 10 years after diagnosis across most of Europe thanks to early detection and treatment, (1) the quality of life after cancer has become an important aspect of the patient journey - one that may be inadequately addressed with current standards of follow-up.
A research team from the Institut de Neurociències at the Universitat Autònoma de Barcelona (INc-UAB) has showed that inhibition through a drug of the Tac2 neuronal circuit, involved in the formation of the memory of fear, has opposite effects on the ability to remember aversive events in mice according to sex: it is reduced in male mice and increased in female mice.
Boston, MA (May 2, 2021) - A new study, presented today at the AATS 101st Annual Meeting, finds that AATS Foundation fellowships support success in academic surgery career tracks. The AATS Foundation has two primary grant funding mechanisms: the AATS Foundation Scholarship and the Surgical Investigator Award. The study looked at publications, citations, NIH funding, and leadership position of awardees, among other factors.
Boston, MA (May 2, 2021) - A new study, presented today at the AATS 101st Annual Meeting, found that heart transplantation using donation after cardiac death (DCD) with normothermic regional perfusion (NRP) is feasible in the United States. Broader application of DCD heart transplantation has the potential to increase cardiac allograft availability by 20-30 percent.
Diatoms are tiny unicellular plants -- no bigger than half a millimeter -- which inhabit the surface water of the world's oceans where sunlight penetration is plenty. Despite their modest size, they are one of the world's most powerful resources for removing carbon dioxide (CO2) from the atmosphere. They currently remove, or "fix," 10-20 billion metric tons of CO2 every year by the process of photosynthesis.
The legacy of systemic racism in the U.S impacts psychosis risk at the individual and neighborhood level, according to a definitive review published online today. Researchers examined U.S. based evidence connecting social and environmental factors with outcomes relating to psychotic experiences, including schizophrenia.
New research has shown that COVID-19 infections in healthcare workers during the first wave of the pandemic provided an accurate sample of the general population, suggesting that data from healthcare workers could be used to estimate the severity of future viruses more quickly.
The study, led by researchers from RCSI University of Medicine and Health Sciences in collaboration with IBM Research, is published in PLOS ONE.
CHICAGO --- Itch torments its sufferers and can be as debilitating as chronic pain.
But it's a hard symptom to measure -- particularly for the 10 million U.S. children with atopic dermatitis, also known as eczema. They can't always verbalize or quantify their suffering via a survey or scale.
It can also be difficult to objectively measure itch for adults with liver disease, kidney disease and certain cancers who experience its symptoms.
So, it's hard to track how well treatments and drugs are working.
eNeuro is publishing a special collection of commentaries on April 30, 2021 on the neuroscience documentary In Silico. The collection, titled "Epistemological Lessons from the Blue and Human Brain Projects," features reactions to the documentary from leading neuroscientists as well as a discussion on brain modelling and massive research collaborations in general.
Boston, MA (April 30, 2021) - Research presented today at the AATS 101st Annual Meeting, shows that the six year Integrated Cardiothoracic (CT I-6) residency continues to be the most challenging to match, while the pool of applicants has become more diverse.