During hibernation, where a mammal’s core temperature cools to well below normal, the connections between brain cells are depleted. This process may be defective in neurodegenerative diseases such as Alzheimer’s, contributing to the death of brain cells in these disorders. By simulating the effects of cooling in mice, scientists have revealed a possible new target for drugs that could protect against neurodegeneration.
A team of chemical engineering researchers has developed a technique that uses a new catalyst to convert methane and water into hydrogen and a fuel feedstock called syngas with the assistance of solar power. The catalytic material is more than three times more efficient at converting water into hydrogen gas than previous thermal water-splitting methods.
Hydrogen fuel cells may be the best option for powering zero-emission vehicles. But these fuel cells require an electrocatalyst— a platinum surface— to increase the reaction rate, and the cost of the precious metal makes it hard for hydrogen fuel cells to compete economically with the internal combustion engine.
The world burns enough oil-derived fuels to drain an Olympic-sized swimming pool four times every minute. Global consumption has never been higher— and is rising. Yet, the price of a barrel of oil has fallen by more than half over the past six months because the globe, experts say, is awash in oil.
Dian Fossey was an American zoologist, primatologist and anthropologist, born Jan. 16, 1932, in San Francisco, who undertook an extensive study of gorilla groups over a period of 18 years.
Labconco’s Protector Echo filtered fume hoods line is an energy-efficient hood solution with several features that are unavailable on other ductless filtered hood. The hoods are intended to work with a broader range of chemicals than other kinds of ductless enclosures.
Perchloric Acid Hoods from HEMCO are engineered for the safe handling of perchloric acids in laboratory procedures. The hoods come in 48, 60, and 72” widths, and include a dedicated washdown and exhaust system.
The Purair 20 Ductless Fume Hood from Air Science has been designed to provide operator protection when using hazardous substances. A face velocity at 100 fpm ensures containment of fumes, and an alarm will alert the operator when the airflow falls to an unacceptable level.
The new drug cabotegravir has been shown to protect monkeys from infection by an HIV-like virus, and a clinical trial testing its safety and acceptability has begun. Unlike other preventive treatments, it would require only one injection every three months.
As predicted, this year's flu vaccine is doing a pretty crummy job. Health officials say a new study shows it's only 23 percent effective. That's one of the worst performances since the government started tracking how well vaccines work a decade ago.
It's been known for decades that some metals, including iron, accumulate in human tissues during aging. Common belief has held that iron accumulation happens as a result of the aging process. But, research shows that iron accumulation itself may also be a significant contributor to the aging process, causing dysfunction and malfolding of proteins already implicated in the aging process.
A team of researchers has recently invented the Quantitative Carbon Detector, a new device that identifies and quantifies chemical compounds in complex mixtures such as fuels, oils, chemicals, pharmaceuticals and food. This instrument will have a significant impact on the amount of time required for chemical analysis.
Humans are having such a marked impact on the Earth that they are changing its geology, creating new and distinctive strata that will persist far into the future. Scientists have proposed a start date for the dawn of the Anthropocene— a new chapter in the Earth's geological history. It began July 16, 1945: the day of the world’s first nuclear test.
An international team has demonstrated that the 1935 Einstein-Podolsky-Rosen (EPR) quantum mechanics paradox may be extended to more than two optical systems, paving the way for exploration of larger quantum networks.
Hackers equipped with little more than a cheap radio antenna could spy on your digital activities by monitoring the electronic signals your computer produces during the course of its normal operations. Even disconnecting from the Internet won’t help protect you from this kind of so-called “side channel” attack, and your smartphone may be even more vulnerable, experts say.