Microbes eat their way to better concrete
...s through selective cementation, and possibly as a dust controller for surface soils. The project also provides excellent research experiences for undergraduate and graduate students who are actively involved conducting research experiments, analyzing data, presenting their findings at conferences and pr...Ventilation in bars, casinos doesn't control health risk for hospitality workers
...Delaware's smoking ban: Except for residual chalk dust in the pool hall at 17% of pre-ban levels -- air quality levels post-ban in all venues were indistinguishable from those measured out-of-doors. Prior to the smoking ban, however, Repace found all eight venues to be heavily polluted. Indoor RSP le...Reducing allergens in the home helps inner-city children with asthma
...holds and initiated measures to decrease levels of dust mite, cockroach, dog, cat, rat, mouse and mold all...est to at least one of 11 indoor allergens such as dust mites, molds, cockroaches, pets or rodents. Researchers performed a baseline clinical eva...UC Irvine scientists to develop vaccine to combat bioterrorism threat from deadly bacteria
...Transmission occurs when humans and animals inhale dust bearing the bacteria, when they drink contaminated water, or when their skin abrasions come into direct contact with contaminated soil. Contact with the blood or body fluids of an infected person also can spread the disease. Symptoms of melioidosis ...Water on Mars not easy to find, says Texas A&M researcher
...tion." Lemmon says the team did learn that Martian dust is everywhere on the planet. "The dust is so thick it coats everything, including our equipment on the rovers, so thick it clogged up solar...DFG presents the 2004 MAK and BAT value lists
... preservatives and biocides, as well as hard metal dust containing tungsten carbide or cobalt. A total of 21 substances, among them the carcinogenic compounds cadmium, 1,5-diaminonaphthalene, o-aminoazotoluen, toluidine, toluylenediamine (diaminotoluene) and six N-nitrosamines, were newly labelled with th...National study shows dog and cat allergens are universally present in U.S. homes
...ntative survey of 831 homes, researchers collected dust samples, asked questions, and examined homes. Interestingly, the researchers found that dog and cat allergen levels were higher among households belonging to demographic groups in which dog or cat ownership was more prevalent, regardless of whether ......es are warming the Earth faster than aerosols like dust can mask them, said Joyce E. Penner, professor of ...Michigan. Various types of aerosols--from soot and dust to sulfur--can either cool or warm the climate, she explained. Warming is associated with absorbing ...Antibiotics alter GI tract microbes and increase lung sensitivity to allergens
...ls and tiny hairs designed to trap bits of pollen, dust and spores before they enter the lungs. These trapped particles are swept into the stomach with saliva and mucus as you swallow. "Anything you inhale, you also swallow," Huffnagle says. "So the immune cells in your GI tract are exposed directly to a...Indoor mold, building dampness linked to respiratory problems and require better prevention
...pness influences whether mold as well as bacteria, dust mites, and other such agents are present and thrive indoors. Moreover, wetness may cause chemicals and particles to be released from building materials. Many studies of health effects possibly related to indoor dampness do not distinguish the speci...Teachers turn to Tolkein to explain physics
... whether the cylinder gets "heavier" by picking up dust or "lighter" as a result of being cleaned, it always has a mass of 1 kg. Ian Robinson describes two new experiments that aim to sweep away this unsatisfactory state of affairs - by redefining the kilogram so that its value cannot change with time. On...New research outlines public health consequences
...sses of contaminants taken from samples of settled dust following the collapse of the twin towers. These i...e exposure. "We believe the high alkalinity of the dust was a major contributing factor to the high incidence of bronchial hyperreactivity," said Landrigan....Tracking cystic fibrosis with mice
... clumping of the mucous so that natural removal of dust and bacteria from the respiratory tract is no longer possible. Mice, whose sodium ion channels had been altered, became ill with the lung inflammation typical of cystic fibrosis. The researchers demonstrated with a high degree of probability the dire...Phytoplankton may stimulate uptake of CO2
...indy conditions and a lot of dust. This iron-rich dust is blown out to sea, stimulating productivity of phytoplankton throughout the world's oceans and reducing CO2 levels. "In order for the phytoplankton to be a long-term sink for carbon, they somehow have to get deposited in the deep ocean, and that do...Researchers probe link between nanotechnology and health
...including automotive and power plant emissions and dust from the World Trade Center disaster. What's different about nanotechnology is that these particles are man-made into a well-defined size, down to a billionth of a meter, and appear to seep all the way into the mitochondria, or energy source, of livi...Study points to possible cause of asthma exacerbations
...rom bacteria and is found in household dust, grain dust and objects such as pillows. The presence of receptors for endotoxin would lead to interaction between the epithelial cell and the endotoxin and potentially cause inflammation. The study appeared in the December 26, 2003, issue of the Journal of Biol...Geoenvironmental researchers to join Technium
...ed key waste stockpiles in Wales, including quarry dust waste, slate waste and colliery shale. These products are undergoing development trials prior to being tested in the marketplace. Technium Chief Executive Steve Davies said: "The involvement of GRP provides us with the opportunity to develop world b...Household activities release a cloud of dust, increasing exposure to particulate pollution
...rug or just vacuuming it, you may be inhaling tiny dust particles that could be harmful to your health. Th...ng, heating equipment and, according to the study, dust kicked up from human activities. "I measured concentrations of airborne particles continuously while......een the dominating life form on Earth. Atmospheric dust blocked the sunlight and led to the death of plants that are dependent on photosynthesis. The layer of fossil fungi is followed by a 60 cm thick interval containing traces of the recovery flora, which re-established relatively quickly, ground ferns a...... Sahara is the largest desert in the world and its dust can be found everywhere in the northern hemisphere. To determine how the dust enters the atmosphere and how it is then distributed scientists of the newly organized Research Unit...