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Tag: "cooling" at biology news

Tiny airborne particles are a major cause of climate change

... sun's radiation back into space, creating a local cooling effect on Earth. But to complicate matters, Kore...ffect could lead to the warming up of cold and the cooling down of hot regions. These additional effects to the already problematic warming by greenhouse gases...

UCI scientists find chlorine may contribute to ozone formation

...gas also is used to treat water in swimming pools, cooling towers and municipal water supplies. Chlorine atoms react rapidly with hydrocarbons and nitrogen oxides from automobile and power plant emissions, contributing to the complex chain of reactions that leads to ozone formation. The primary cause of urba...

Man may have caused pre-historic extinctions

... man. One theory had been that a period of climate cooling wiped them out. However, the researchers have discovered that uncertainties in dating fossil remains and the incompleteness of fossil records mean that the survival of the horse beyond the arrival of humans cannot be ruled out. The PNAS paper deve...

Global 'sunscreen' has likely thinned, report NASA scientists

...that the opposing forces of global warming and the cooling from aerosol-induced "global dimming" can occur at the same time. "When more sunlight can get through the atmosphere and warm Earth's surface, you're going to have an effect on climate and temperature," said lead author Michael Mishchenko of NASA'...

When your brain talks, your muscles don't always listen

...ople with severe spinal cord injuries have limited cooling because they can't perspire below the site of injury," Knight said, "so their core body temperature can reach dangerous levels." In graduate school, he decided to pursue motor control research, and he's never looked back. "My early interests we...

Scientists uncover link between ocean's chemical processes and microscopic floating plants

...Increased cloudiness could block sunlight, thereby cooling Earth. "Therefore, additional DMS production in a higher carbon dioxide environment may help contribute to self-regulation of Earth's climate." "The bottom line is that carbon dioxide-loading of the atmosphere could lead to environmental changes we...

Tropical forests -- Earth's air conditioner

...uce reflective clouds, they are especially good at cooling the planet. In contrast, forests in snowy areas ca...he absorption of sunlight, which can overwhelm the cooling effect of carbon storage. However, Caldeira believes it would be counterproductive to cut down fo...

Machine preservation may promote more organ sharing

...nsplantation. With both methods of preservation, a cooling solution is pumped into the organs during organ recovery. However, with simple cold storage, the kidneys are simply immersed in preservation solution and packed on ice until transplant. The study involved organs from "expanded criteria" donors (E...

Arctic ice retreating more quickly than computer models project

...ich reflect sunlight back into space and provide a cooling impact, are disappearing. In contrast, darker areas of open water, which are expanding, absorb sunlight and increase temperatures. This feedback loop has played a role in the increasingly rapid loss of ice in recent years, which accelerated to 9.1 pe...

Detecting cold, feeling pain: Study reveals why menthol feels fresh

...overed that the receptor was activated by chemical cooling agents such as menthol, a natural product of mint,...in mice. The cells in culture were unresponsive to cooling agents, including menthol. The genetically engineered mice did not discriminate between warm and col...

Studies to find better ways to preserve human eggs, ovarian tissue under way

...rature very, very slowly,” says Dr. Song. Slow cooling works well for simple tissue, such as sperm or even embryos, and for blood. “In blood, for example, conventional cryopreservation freezes the liquid part but not the cells inside. Liquid freezes and the water inside the cells moves out gradually so t...

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