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combustion in Medical News

Nitrous gases and zinc in the crosshairs

...t contains 62 changes and new entries. These include revised assessments of nitrogen monoxide and nitrogen dioxide. These gases are produced during combustion processes and thus occur in automobile emissions. Amongst other things, they cause acid rain. Oxides of nitrogen are used in the industrial production...

New data demonstrate potential for early detection of Alzheimer's disease

...s Disease , 17:2 (June 2009). Near-infrared spectroscopy is commonly used in medical diagnostics, food and agrochemical quality control, as well as combustion research. This technology has been licensed to Molecular Biometrics, Inc., a metabolomics company specializing in the development of minimally-inv...

SeprOx Receives Texas Emerging Technology Fund Award

... University of Houston . Applications of the technology range from small medical oxygen generators to large industrial oxygen systems for clean coal combustion and gasification. The Company expects to complete fabrication of a working prototype of its five liter per minute portable medical oxygen generator fo...

Landmark USGS study

..., off the coast of Asia. "Mercury researchers typically look skyward to find a mercury source from the atmosphere due to emissions from land-based combustion facilities. In this study, however, the pathway of the mercury was a little different. Instead, it appears the recent mercury enrichment of the sample...

Avon Foundation Convened Breast Cancer Experts in Miami to Address Prevention Strategies at Annual Forum

...st cancer as well as risk reduction strategies. Dr. Sonenshein studied exposure to polycyclic aromatic hydrocarbons (PAHs), which come from incomplete combustion of fossil fuels, polluted air or water, cigarette smoke and charcoal broiled foods. Her research identified that green tea (EGCG) helps prevent the P...

Prenatal Exposure to Traffic Pollution May Lead to Asthma

...ation in the gene ACSL3 -- associated with prenatal exposure to polycyclic aromatic hydrocarbons (PAHs), which are created as byproducts of incomplete combustion of carbon-containing fuels such as gasoline. PAH levels are high in heavy-traffic areas, and exposure to PAHs has been linked to such diseases as c...

EPA Alerts Seniors to Carbon Monoxide Dangers

...eas. (Less than one third of homes have them installed.) Check heating systems and fuel-burning appliances annually. Avoid the use of non-vented combustion appliances. Never burn fuels indoors except in devices such as stoves or furnaces that are made for safe use. Be attentive to possible symptoms ...

Small Doses of Carbon Monoxide Might Help Stroke Victims

...nt brain damage after a stroke, Johns Hopkins researchers report. CO, a colorless, odorless gas that can cause organ damage and death, is found in combustion fumes, such as those made by heating systems, vehicles and gas ranges. In enclosed or semi-enclosed places with poor ventilation, CO can build up and ...

The 2009 Leibniz Prize: Eleven new scientific discoverers

...His contribution to the development of ferroelectric functional ceramics which are used in applications such as mobile phones and to control internal combustion engines and of new lead-free piezoelectric ceramics has been especially significant. Rdel's other area of activity that has won him worldwide acclaim...

Exhaust From Railroad Diesel Linked to Lung Ailments

.... The health records used were from the U.S. Railroad Retirement Board, dating back to 1959. Diesel exhaust includes fine particulate matter and combustion gases that can be inhaled deep into the lungs. Previous studies have made a link between the organic compounds in diesel exhaust and allergy, airway i...
combustion in Medical Dictionary

Tobacco use

...monly tobacco , is burned and the smoke tasted or inhaled. This is primarily practised as a route of administration for recreational drug use , as combustion releases the active... Tobacco is an agricultural product processed from the fresh leaves of plants in the genus Nicotiana. It can be consumed, ...

Smoking

...e where a substance, most commonly tobacco, is burned and the smoke tasted or inhaled. This is primarily done as a form of recreational drug use, as combustion releases the active substances in drugs such... Tobacco smoking is the practice where tobacco is burned and the vapors either tasted or inhale...

Gasoline

...l is a petroleum-derived liquid mixture, primarily used as fuel in internal combustion engines. It also is used as a powerful solvent much like acetone. Gaso...l is a petroleum-derived liquid mixture, primarily used as fuel in internal combustion engines. It also is used as a powerful solvent much like acetone. gaso...

Carbon dioxide

... David Keeling and ... Carbon dioxide (CO2), the most important greenhouse gas produced by human activities, is produced primarily through the combustion of fossil fuels. Article lists ... Nature's fine handling of carbon dioxide in our atmosphere has served the planet ... We know that trees rem...

Antifreeze

... Antifreeze is a cryoprotectant used in internal combustion engines, and for many other heat transfer applications, such as HVAC chillers and solar water heaters. The purpose of antifreeze is to prevent a rig...
combustion in Biological News

Hopkins researchers discover genetic switch that turns off an oxygen-poor cell's combustion engine

Johns Hopkins researchers have discovered a previously unrecognized role played by the gene HIF-1 as it helps cell survive when a lack of oxygen decreases production of an energy-rich molecule called ATP and increases production of toxic molecules. ATP supplies energy the cell needs to perform eac...

LSUHSC shows for first time infant inhalation of ultrafine air pollution linked to adult lung disease

...e ultrafine particulate matter) affects long-term lung function. She recently presented her latest research data at the 11th International Congress on combustion By-Products and Their Health Effects at the Environmental Protection Agency Conference Center in Research Triangle Park, N.C. Dr. Cormier, a 2006 N...

Wood stoves -- a viable home heat source?

...gy has substantially advanced in recent years. With the advanced secondary combustion systems on Environmental Protection Agency certified woodstoves, they are n.... But while this gross amount did increase, the net carbon released by the combustion is negligible, the only surplus coming from the harvest and transport. Bas...

American Chemical Society's Weekly Presspac -- June 17, 2009

... parts of the world burn raw coal chunks in small, low-efficiency stoves for cooking and heating. Studies indicate that emissions from incomplete coal combustion in these stoves contribute significantly to China's serious air pollution levels among the highest in the world. The scientists compared emissions...

The coming of biofuels: Study shows reducing gasoline emissions will benefit human health

...acts of biomass production, converting and processing this biomass into fuel, storing, transporting and distributing that fuel, and finally the actual combustion and use of the biofuel." EBI is a partnership between UC Berkeley, Berkeley Lab, the University of Illinois and BP, the energy corporation that has...

Pediatric carbon monoxide poisoning linked to video games after Hurricane Ike

...ton with a hyperbaric oxygen treatment center that is capable of treating patients with carbon monoxide poisoning. Carbon monoxide is a product of combustion of organic matter with an insufficient oxygen supply. When kept inside the home generators give off carbon monoxide and people can begin breathing it ...

Spring agricultural fires have large impact on melting Arctic

... because the black carbon or soot produced by the fires can lead to accelerated melting of snow and ice. Soot, which is produced through incomplete combustion of biomass and fossil fuels, may account for as much as 30 percent of Arctic warming to date, according to recent estimates. Soot can warm the surroun...

Major funding to help cut CO2 emissions

...universities of Nottingham, Newcastle, Edinburgh and Leeds will investigate combustion and CO 2 capture and transport technologies that could help make a crucial...ity, the University of Kent, and the University of Cambridge on the oxyfuel combustion process in which coal is burned in a mix of pure oxygen and power station f...

AGU journal highlights -- March 25, 2009

...008GL036359, 2009; http://dx.doi.org/10.1029/2008GL036359 4. Airborne acid may help soot turn into cloud seeds Carbon soot aerosols from combustion of fossil fuels and forest fires directly influence the Earth-atmosphere heat balance by absorbing sunlight. Fresh soot particles repel water and henc...

Tree species composition influences nitrogen loss from forests

... MADISON, WI, MARCH 16, 2009--Throughout the world, nitrogen compounds are released to the atmosphere from agricultural activities and combustion of fossil fuels. These pollutants are deposited to ecosystems as precipitation, gases, and particles, sometimes many hundreds of miles downwind of the...
combustion in Biological Technology

Ricardo Launches Consortium to Evaluate Lubricant Challenges of Future Low Carbon Engine Technologies

...m include: the implications of extreme engine downsizing and increased specific power; tolerance to increasing volumes of exhaust gas recirculation in combustion systems (with consequent issues for soot in oil, wear and sludge formation); the chemical impacts on lubricants of biofuel dilution; advanced componen...

VIASPACE Granted US Patent

...as streams for fuel cells and exhaust streams from combustion processes such as automobiles and factory smokesta... gas, when burned in air, produce water vapor as a combustion product. Precise measurement of the water vapor i...st may be a crucial indicator of the efficiency of combustion and the effective "miles per gallon" achieved. ...

New Generation Biofuels Announces Test Burn Agreement With Progress Energy Florida

... A. Gillespie, president and CEO of New Generation Biofuels. "We're looking forward to further validation of our biofuel as we extend our reach beyond combustion turbine technology into utility scale boiler applications." "We believe renewable energy is a key part of a balanced approach to meeting the ...

A new material could act as a nanofridge for microchips

...patible with silicon technology. Ge-based structures also could be used in high-temperature applications, such as in recovering heat generated in combustion processes and converting it to electrical energy. A second and important aspect of this project is the theoretic study of the thermal properties t...

Dartmouth researchers advance cellulosic ethanol production

...iomass roughly equals what is emitted while running an engine. In addition, ethanol has excellent performance and compatibility with existing internal combustion engines as well as fuel cell-powered vehicles of the future. Innovative technology for ethanol production from cellulosic raw materials has been a ...

Forward step in forecasting global warming

...e to warming or cooling including carbonaceous and sulfate particles from combustion of fossil fuels and biomass, salts from oceans and dust from deserts. Brown carbons from combustion processes are the least understood of these aerosol components. The para...

Bion Outlines Differences between its Patented Comprehensive Livestock Environmental Treatment Technology and Anaerobic Digesters

...per day, depending on process design and operation. In most instances, the gas produced by the AD system is combusted on-site in a turbine or internal combustion engine to produce electricity. In most cases, a significant portion of the energy contained in the waste stream is lost in the conversion to electrici...

U.S. Automakers Welcome Utility Partners To FreedomCAR and Fuel Partnership

...d research includes everything from increasingly efficient cars and trucks with advanced gasoline and clean diesel engines to hydrogen-fueled internal combustion engines and fuel cells. It also includes vehicles powered by biofuels and ethanol, hybrid-electric vehicles and, of course, plug-in hybrids. Clearly, ...

Special coating greatly improves solar cell performance

... implemented solar cells. Such technology would greatly reduce our dependence on burning fossil fuels for electricity production as well as reduce the combustion product: carbon dioxide, a global warming greenhouse gas. Tobin J. Marks, the Vladimir N. Ipatieff Research Professor in Chemistry in the Weinberg...

Experiments reveal unexpected activity of fuel cell catalysts

...ty. Their results will be published online in the December 14, 2007, edition of the journal Science. Fuel cells combine hydrogen and oxygen without combustion to produce direct electrical power and water. They are attractive as a source of power for transportation applications because of their high energy ef...
combustion in Biological Definition

Cell metabolism

...o smaller units. The empirical formula for carbohydrates, like that of their monomer counterparts, is C X (H 2Y O Y ). Carbohydrates literally undergo combustion to retrieve the large amounts of energy in their bonds. Read more about mitochondria to find out more about the reaction and how its energy is secur...

Redox

...ess accounts for all processes in which atoms have their oxidation number (oxidation state) changed. This can be a simple redox process, such as the combustion of carbon by oxygen to yield carbon dioxide, it could be the reduction of carbon by hydrogen to yield methane, or it could be the oxidation of sugar i...

Redox

...ess accounts for all processes in which atoms have their oxidation number (oxidation state) changed. This can be a simple redox process, such as the combustion of carbon by oxygen to yield carbon dioxide, it could be the reduction of carbon by hydrogen to yield methane, or it could be the oxidation of sugar i...
combustion in Biological Dictionary

Oxygen

... ... Oxygen is a chemical element with the chemical symbol O and atomic number 8. ... and antibacterial use of other chemical oxygen forms. 6.3 combustion hazard ... Oxygen Plants are Available in Capacities from 20 to 500m3/Hr Suitable for ... Oxygen is colorless, odorless and tasteless. ... Liqu...

Hybrid

... A hybrid electric vehicle (HEV) is a hybrid vehicle that combines a conventional internal combustion engine propulsion system with an electric propulsion system. The presence of the electric powertrain is intended to achieve... A hybrid is the co...
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