Earth
TROY, N.Y. -- From Steve Jobs to Mark Zuckerberg, the stories of prosperous, young innovators drive the American economic narrative. However, the truth is that older business entrepreneurs may be just as well suited to success. And older women are far more successful at launching a business than their younger counterparts.
Those are among the findings reached by Hao Zhao, an associate professor of management at the Lally School of Management at Rensselaer Polytechnic Institute, in research recently published online in the Journal of Business Venturing.
They say variety is the spice of life, and now new discoveries from Johns Hopkins researchers suggest that a certain elemental 'variety'--sulfur--is indeed a 'spice' that can perhaps point to signs of life.
These findings from the researchers' lab simulations reveal that sulfur can significantly impact observations of far-flung planets beyond the solar system; the results have implications for the use of sulfur as a sign for extraterrestrial life, as well as affect how researchers should interpret data about planetary atmospheres.
The Arctic Ocean increasingly resembles the Atlantic, not only regarding its temperature but also the species that live there. However, scientists from the CNRS and Université Laval, Quebec[1] showed that an unprecedented strengthening of Atlantic currents is playing a major role in this phenomenon called 'Atlantification'. The research team studied Emiliania huxleyi, a marine microalgae that typically lives in temperate waters at lower latitudes.
Before there were farms in southwest Michigan, there were prairies. For thousands of years, tall grass prairies stood undisturbed until European settlers turned the rich, highly productive soils to agriculture.
Today, tall grass prairies East of the Mississippi are virtually extinct.
But some landowners want to return land throughout the Midwest to its incredibly deep roots, converting abandoned, depleted and fallow agricultural fields to native prairie--with varying degrees of success.
Consuming a diet high in fiber was linked with a reduced incidence of breast cancer in an analysis of all relevant prospective studies. The findings are published early online in CANCER, a peer-reviewed journal of the American Cancer Society (ACS).
When the brain gets injured, star-shaped brain cells called astrocytes come to the rescue. In the case of glioma - the most common type of primary brain tumor - this protective action comes at a price.
As rural masses migrate to urban areas, populations grow, and people work toward better living standards, global food system sustainability pays a high price, according to a new analysis spanning low- to high-income countries. The study, which was published April 3 in the scientific journal PLOS ONE, shows that only one major global driver - the increase in international trade flows - appears to have a net positive effect on global food systems sustainability.
NASA-NOAA's Suomi NPP satellite passed over the Southern Pacific Ocean and provided forecasters with a visible image of newly formed Tropical Cyclone Harold. Harold formed near the Solomon Islands and now threatens Vanuatu, which has already issued some warnings.
Normal speech by individuals who are asymptomatic but infected with coronavirus may produce enough aerosolized particles to transmit the infection, according to aerosol scientists at the University of California, Davis. Although it's not yet known how important this is to the spread of COVID-19, it underscores the need for strict social distancing measures -- and for virologists, epidemiologists and engineers who study aerosols and droplets to work together on this and other respiratory diseases.
WASHINGTON, April 3, 2020 -- You might have heard that COVID-19 vaccine trials are underway in Seattle. What exactly is being tested? How much longer will these tests take? And when can we expect a vaccine against the novel coronavirus? We chat with Benjamin Neuman, Ph.D., one of the world's experts on coronavirus, and Daniel Wrapp, one of the scientists who mapped the structure of the protein that the coronavirus uses to infect your cells, to help us answer these questions: https://youtu.be/gDY8pH6OWBc.
Public health scientists predict that school closures due to the COVID-19 pandemic will exacerbate the epidemic of childhood obesity in the United States. Andrew Rundle, DrPH, associate professor of epidemiology at Columbia University Mailman School of Public Health, and colleagues expect that COVID-19-related school closures will double out?of?school time this year for many children in the U.S. and will exacerbate risk factors for weight gain associated with summer recess.
The Perspective article appears in Obesity, the journal of the Obesity Society.
As Tropical Cyclone Irondro continues to move through the Southern Indian Ocean, NASA's Terra satellite saw the storm developing an eye as it continued to intensify.
On April 3, 2020, the Moderate Resolution Imaging Spectroradiometer or MODIS instrument that flies aboard NASA's Terra satellite provided a visible image of Irondro that showed the storm had taken on a classic appearance of an organized tropical cyclone. Bands of thunderstorms were spiraling into a low-level center and MODIS imagery showed what appeared to be a developing cloud-filled eye.
A team at the Centro Nacional de Investigaciones Cardiovasculares (CNIC), working in partnership with researchers at Mount Sinai Hospital in New York, has discovered a new molecular mechanism mediated by nuclear receptors that determines the identity and expansion of macrophages--one of the cell types that act as immune sentinels in the body. The newly discovered mechanism specifically affects the macrophages resident in the serous cavities, the membrane-surrounded cavities that enclose and protect many organs.
PULLMAN, Wash. - A research team led by Washington State University has found that while drylands around the world will expand at an accelerated rate because of future climate change, their average productivity will likely be reduced.
A fossilised seal tooth found on a Victorian beach could hold the key to uncovering the history and geography of earless seals that graced Australia's shores three million years ago.
This prehistoric specimen is only the second earless seal fossil ever discovered in Australia, and proves the country's local fur seals and sea lions were preceded by a group of sea mammals, known as monachines, now long extinct in Australia.