air 2 3

Tag: "air" at biology news

Device traps, disables harmful bacteria

...airborne biological particulate matter -- from the air of a hospital therapy pool using a new generation ...ngineers mounted three high-efficiency particulate air (HEPA) ultraviolet (UV) air filters on the ceiling of the pool room. They compared concentrations of...

Otter adaptations: How do otters remain sleek and warm

...ses heat loss. Also, the grooves between fins trap air bubbles, which help increase the thermal insulatio..., biologists have observed otters actively blowing air bubbles into their fur while grooming, and their energetic rolling catches air in their fur. "The ai...

Genome Sequence for Haemophilus Influenzae Completed

...ses heat loss. Also, the grooves between fins trap air bubbles, which help increase the thermal insulatio..., biologists have observed otters actively blowing air bubbles into their fur while grooming, and their energetic rolling catches air in their fur. "The ai...

UF researchers kill resistant bugs one bandage at a time

... process that allows molecules to diffuse into the air and into the wound, which can slow healing and increases the chance germs will develop resistance. "These technologies are especially timely given the threats that are facing the American public, such as antibiotic-resistant bugs occurring in hospit...

World-first technology enables study of ancient bacteria

...instability of the sea and an explosive mixture of air and methane above. Any ships or planes travelling over the area could sink or catch fire. "So ancient, deep-sediment bacteria may be a key to sustainable energy in the future and to explaining a few disasters," said Professor Parkes. ...

Study uncovers dirty little secret: Soil emissions are much-bigger-than-expected component of air pollution

...nd fossil fuel combustion are a major component of air pollution. They are the primary ingredients in gro...could play a substantially larger role in seasonal air pollution than previously believed. Nitrogen oxide emissions total more than 40 million metric tons...

New understanding of jet lag

...od of adjustment that most people experience after air travel across several time zones. The researchers found that the ventral part of the SCN, which is directly connected by a nerve to the light-sensing retina, synchronizes rapidly with a new light schedule, even a radically shifted schedule. But the ...

Researchers Create DNA-Based Sensors for Nano-Tongues and Nano-Noses

.... The nanosensors could sniff molecules out of the air or taste them in a liquid, suggesting applications ranging from domestic security to medical detectors. "What we have here is a hybrid of two molecules that are extremely sensitive to outside signals: single stranded DNA, which serves as the 'detect...

Sensor web simulation investigates technique to improve prediction of pollution across the globe

...thmatics and for anyone with respiratory problems, air pollution can significantly impair simple everyday...a "sensor web" to track this pollution and improve air quality forecasts. Understanding how tropospheric or near-surface-level ozone is produced, distribu...

High carbon dioxide levels spur Southern pines to grow more needles

...xide is delivered from rings of towers in the open air setting of a Southern forest ecosystem. McCarthy found that, over the most recent six years of the FACE experiment, the pines receiving elevated CO2 had on average about 17 percent more needles than untreated pines. Higher needle percentages in tree...

New study shows SARS can infect brain tissue

...t with coronavirus-laden droplets sprayed into the air by an infected person's coughing. Other symptoms can include high fever, headache, body aches, and pneumonia. However, some patients also exhibit central nervous system ailments. In a new study, the researchers report the case of a 39-year-old doctor...

Trio of plant genes prevent 'too many mouths'

...to allow plants to take in carbon dioxide from the air for photosynthesis. They close when there is the danger that the plant tissue may lose too much moisture. "Specialized cells open and close the stomata, much like opening and closing a mouth," says Keiko Torii, UW assistant professor of biology. Sto...

New tooth enamel dating technique could help identify disaster victims

...naturally produced by cosmic ray interactions with air and is present at low levels in the atmosphere and food. Atmospheric testing of nuclear weapons from 1955 to1963 produced a dramatic surge in the amount of radiocarbon in the atmosphere, Buchholz said. "Even though the detonations were conducted at ...

NASA satellite data provides rapid analysis of Amazon deforestation

...elds for farming result in large fires that create air pollution and release tiny particles, known as aerosols. Aerosols can both heat and cool the air, depending on size, shape and color. Building on the results of this study, Brazil's INPE has developed a near or almost real time monitoring applicatio...

Tropical Deforestation affects rainfall in the U.S. and around the globe

...latent heat," said Avissar. "Associated changes in air pressure distribution shift the typical global circulation patterns, sending storm systems off their typical paths." And, because of the Amazon's location, any sort of weather hiccup from the area could signal serious changes for the rest of the worl...

Agricultural antibiotic use contributes to 'super-bugs' in humans

...and antibiotic resistant bacteria are found in the air and soil around farms, in surface and ground water, in wild animal populations, and on retail meat and poultry. These resistant bacteria are carried into the kitchen on contaminated meat and poultry where other foods are cross-contaminated because of...

Fluoride poisoning in China due to clay, not coal

...coal. The fluoride that contaminates the food and air comes mostly from the clay, which is taken from fluoride-rich soil, Zheng told SciDev.Net. Simply building outdoor chimneys will not be enough, he adds, though this will reduce the threat of arsenic poisoning, which is mainly caused by burning coal ...

Scientists discover new way to look at how molecules twist and turn on water

...g to stick up out of the water, extending into the air or an adjacent oily layer in the case of an oil slick," Richmond explained, "such molecules known as surfactants are some of the most pervasive and useful chemicals in the world, found in products ranging from motor oil to cosmetics. They are also k...

NCAR analysis shows widespread pollution from 2004 wildfires

...nt implications as societies take steps to improve air quality." Carbon monoxide, a toxic gas that can affect human health even at low levels, is emitted by wildfires as well as by motor vehicles, industrial facilities, and other sources that do not completely burn carbon-containing fuels. Ground-level ...

Chernobyl: The true scale of the accident

...ending on whether it was raining when contaminated air masses passed. Most of the strontium and plutoniu...ination of sewage and sludge systems. Radiation in air above settled areas returned to background levels, though levels remain higher where soils have rema...

1 2 3 4 5 6 7 8 9 10