Culture
The ability of stem cells to fix impaired functions of host tissues after transplantation has been a lifesaving breakthrough in treating previously incurable conditions. Much like a coin toss, however, the fate of the transplanted stem cells is unpredictable. They may choose self-renewal, grow into a different kind of tissue, or die.
Normally, the ACE2 enzyme helps regulate our blood pressure. The enzyme sits on the surface of cells, including cells in the lungs, but in connection with COVID-19 it has been found that ACE2 also functions as a gateway for the virus.
AUSTIN, Texas -- Puerto Rico is not ready for another hurricane season, let alone the effects of climate change, according to a new study that shows the island's outstanding capacity to produce record-breaking floods and trigger a large number of landslides.
A study examining gender bias and family-owned businesses found daughters were rarely encouraged nor received support to pursue entrepreneurship education while sons mostly did.
Professors James Combs, Peter Jaskiewicz, and Sabine Raul from the Telfer School of Management uncovered new insights about how gender bias - the preference of a gender over the other - affects the succession strategy in multi-generational family firms. Their findings are published in the Journal of Small Business Management.
It's hard to see more than a handful of stars from Princeton University, because the lights from New York City, Princeton and Philadelphia prevent our sky from ever getting pitch black, but stargazers who get into more rural areas can see hundreds of naked-eye stars -- and a few smudgy objects, too.
Carbon dioxide emissions in Los Angeles fell 33% in April of 2020 compared with previous years, as roads emptied and economic activity slowed due to the COVID-19 pandemic, according to a new study in Geophysical Research Letters. In the Washington, D.C./Baltimore region, emissions of carbon dioxide, or CO2, dropped by 34% during the same period.
A new study at the University of Chicago has determined that restoring a single microbial species -- Bacteroides sp. CL1-UC (Bc) -- to the gut microbiome at a key developmental timepoint can prevent antibiotic-induced colitis in a mouse model of the condition.
TROY, N.Y. -- More strategic and coordinated travel restrictions likely could have reduced the spread of COVID-19 in the early stages of the pandemic. That's according to new research published in Communications Physics. This finding stems from new modeling conducted by a multidisciplinary team of scientists and engineers at Rensselaer Polytechnic Institute.
BOSTON - Current guidelines recommend stopping cervical cancer screening at age 65, but women over age 65 make up over one in five new cervical cancer diagnoses, and are twice as likely to die after a cervical cancer diagnosis compared to younger women. New research from Boston Medical Center found that fewer than one in three women aged 64 to 66 met the criteria to discontinue cervical cancer screening while looking at patients with both private insurance and from a safety-net hospital setting.
GAINESVILLE, Fla. --- A more reliable way of estimating the size of megalodon shows the extinct shark may have been bigger than previously thought, measuring up to 65 feet, nearly the length of two school buses. Earlier studies had ball-parked the massive predator at about 50 to 60 feet long.
The revised estimate is the result of new equations based on the width of megalodon's teeth - and began with a high school lesson that went awry.
In the quest for healthy aging and longer lifespan, Danish researchers at the University of Southern Denmark have collaborated with Swedish researchers at Karolinska Institutet to explore the anti-aging effects of football and team handball training in women.
Climate change and social inequality are two pressing issues that often overlap. A new study led by Princeton researchers offers a roadmap for cities to address inequalities in energy use by providing fine-grained methods for measuring both income and racial disparities in energy use intensity. Energy use intensity, the amount of energy used per unit floor area, is often used as a proxy for assessing the efficiency of buildings and the upgrades they receive over time.
High blood pressure, or hypertension, is the leading modifiable risk factor for cardiovascular diseases and premature death worldwide. And key to treating patients with conditions ranging from chest pain to stroke is understanding the intricacies of how the cells around arteries and other blood vessels work to control blood pressure. While the importance of metals like potassium and calcium in this process are known, a new discovery about a critical and underappreciated role of another metal - zinc - offers a potential new pathway for therapies to treat hypertension.
A study conducted by a group of Brazilian researchers contributes to a deeper understanding of the molecular basis for schizophrenia, and potentially to the development of more specific and effective treatments for the disease. The medications currently available on the market act generically on the brain and can have severe adverse side effects.
In those with fatty liver disease, a person’s fat goes to their liver instead of their fat tissue, either because of an absence of fat depots, which is seen in the rare genetic disease lipodystrophy, or because the depots are too full, which is seen in people with obesity.
One third of these people will go on to develop nonalcoholic steatohepatitis, or NASH - an advanced form of fatty liver disease brought on by progressive inflammation and scarring in the organ.