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A new paper has implicated a physiologic mechanism in vegetation as a cause for Arctic warming.The "greenhouse effect" is well-known by now, water vapor that plants emit during photosynthesis serves to lower land surface temperature, similar watering the yard on a hot day, but it can lead to a rise in air temperature. The new paper finds that the Arctic temperature rises when the moisture released by plants is reduced due to the increase of carbon dioxide (CO2 ) in the atmosphere. The increase in atmospheric CO2 concentration closes the pores (stomata) of plants in high-latitude areas and reduces their transpiration, which they find ultimately accelerates Arctic warming. 

When states and nations began to implement forced lockdowns to combat COVID-19, the SARS-CoV-2 coronavirus that has now killed 20,000 more people than the flu did two years ago, there was relatively little mention of mental health. For those who wanted to stay home and learn to bake bread, it was a paid vacation, but for those more susceptible to psychological stress it is a risky time.

Anxiety-prone people can blame serotonin cleanup proteins gone awry in their amygdala, according to research in marmosets recently published in JNeurosci. Targeting the amygdala with anti-anxiety medication could provide quicker relief.

The same event or set of life circumstances could send one person into the depths of anxiety or despair while leaving another unaffected. This distinction, called trait anxiety, arises from the proteins involved in serotonin signaling, a neurotransmitter implicated in anxiety and depression.

In 2000, vaccines led to the measles virus being declared eliminated from the United States yet in 2019 there were 1,282 confirmed cases in 31 states - the greatest number reported since 1992. Unsurprisingly, nearly three-fourths originated from New York which, along with the west coast, has long been a hotbed for vaccine denial. And the cases occurred in people not vaccinated against measles. 

The last group most of the world wants to hear from right now is a lab in Wuhan, but if their microwave air plasma thruster is more real than their claims of having a certified BSL-2 lab studying coronavirus, there could be a great deal of interest in the future. Like solids, gases, and liquids, plasma is fourth state of matter found naturally in places like the sun's surface and Earth's lightning. The Institute of Technological Sciences at Wuhan Universitysay they have created a plasma jet by compressing air into high pressures and using a microwave to ionize the pressurized air stream.

Though slavery is still invoked in the United States of America, it is ironically because it was relatively rare compared to the rest of the continent. Only 4 percent of African slaves brought by Europeans and other Africans were brought to what is now the U.S, and importation was banned by President Thomas Jefferson in 1808. The remaining 96 percent went to Latin America and there is no benefit to invoking slavery when so many have not only slaves as ancestors, but also the colonizers who brought them.Bringing in a huge population of slaves left behind a science story, and that story is filled out a little by three individuals found within a mass burial site from the 16th century at San José de los Naturales Royal Hospital in Mexico City.

Collective layoffs of large groups of workers have been common during the Coronavirus Pandemic of 2020.

A new paper might inform possible impacts because it analyzed 556 collective layoffs announced between December 2018 and November 2019 across different industries that involved more than 250,000 employees. They wanted to see what collective layoff decisions had on the firms that initiated them.

The termination of employment, particularly of large numbers of people, typically evokes negative connotations. While the effect on individuals is obvious they found that layoff announcements have negative effects on companies.

If you are an artist, you will need a much different bionic arm than a soldier and a new waypoint on the road to interchangeable bionics has been developed. In July 2019, the Clinical Laboratory for Bionic Limb Reconstruction at MedUni Vienna's Department of Surgery implanted sensors in three male patients following nerve transfers, to transmit biosignals for wireless control of bionic prostheses. 

The 5th century Mözs-Icsei dülő cemetery near Szekszárd in the area known as Pannonia dates back to the late Roman period. Remains reveal the demographic makeup during the beginnings of Europe's Migration Period, when the Huns invaded Central Europe and the Romans retreated from modern-day Western Hungary as the empire collapsed in the face of barbarian hordes.

When it comes to COVID-19 deaths, the elderly and those with certain pre-existing conditions are at greater risk, just like they are in any disease that can cause respiratory distress.Yet demographers are beginning to break down those numbers to highlight disparities in outcomes. A new paper finds that even though men and women are equally likely to contract the virus, men are significantly more likely to suffer severe effects and die. What might explain it? Co-morbidities are certainly a factor, though deaths in people of color are higher than in Caucasian-Americans and co-morbidities are dismissed in those because it sounds too much like laying blame.

Early on in this year's coronavirus pandemic, SARS-CoV-2, experts began to explore whether the pool testing approach used in blood banking could be adapted to increase testing capacity in coronavirus diagnostics and protect those with a high mortality risk from the coronavirus. This would protect those at greater risk from asymptomatic individuals, including the medical and care staff that look after them.Viral infections are challenging because people can be contagious before developing symptoms. Studies have said individuals can spread the coronavirus two days before the onset of clinical symptoms and viral load is at its highest almost a day before any symptoms become apparent. 

If we want to get a snapshot about what the ancient ways really meant for food, we need look no further than the Amazon, where despite living in the most biodiverse place on Earth, people go hungry.The reason is simple; they don't harness nature, they exist at the whim of it. Ribeirinhos live alongside rivers in Brazil's Amazonian floodplain forests but struggle to catch enough fish to eat and can go hungry. The reason is nature. The Purus River undergoes one of the largest annual variations in water levels on the planet. When it floods, large areas of forest become submerged. River fish populations disperse making them much harder to catch. They can't feed themselves even with a sparse rural population