نتایج جستجو برای: voc
تعداد نتایج: 4164 فیلتر نتایج به سال:
BACKGROUND Exhaled volatile organic compounds (VOC) are being considered as biomarkers for various lungs diseases, including cancer. However, the accurate measurement of extremely low concentrations of VOC in expired air is technically challenging. We evaluated the clinical contribution of exhaled VOC measured with a new, double cold-trap method in the diagnosis of lung cancer. METHODS Breath...
Children spend a large amount of time in school environments and when Indoor Air Quality (IAQ) is poor, comfort, productivity and learning performances may be affected. The aim of the present study is to characterize IAQ in a primary school located in Taranto city (south of Italy). Because of the proximity of a large industrial complex to the urban settlement, this district is one of the areas ...
Patients with sickle-cell disease (SCD) suffer from tissue damage and life-threatening complications caused by vasoocclusive crisis (VOC). Endothelin receptors (ETRs) are mediators of one of the most potent vasoconstrictor pathways in mammals, but the relationship between vasoconstriction and VOC is not well understood. We report here that pharmacological inhibition of ETRs prevented hypoxia-in...
BACKGROUND Distinguishing between acute presentations of osteomyelitis (OM) and vaso-occlusive crisis (VOC) bone infarction in children with sickle cell disease (SCD) remains challenging for clinicians, particularly in culture-negative cases. We examined the combined role of ultrasound scan (USS), C - reactive protein and White blood counts (WCC) in aiding early diagnosis in children with SCD p...
The effects of solution (sol) processed contacts of indium tin oxide (ITO-sol) and gold (Au-sol) on solar cells are tested. When combined with solution processed active layers of CdTe/CdSe, all-inorganic fully solution processed solar cells are produced on non-conductive glass substrates. Under AM 1.5G illumination, open circuit voltages (Voc), short circuit currents (Jsc) and efficiencies (η) ...
Title of Dissertation: A STUDY OF GROUND-LEVEL OZONE OVER THE BALTIMORE/WASHINGTON OZONE NONATTAINMENT AREA Yu-Jin Choi, Doctor of Philosophy, 2004 Dissertation directed by: Associate Professor Sheryl H. Ehrman Professor Richard V. Calabrese Department of Chemical Engineering Professor Russell R. Dickerson Department of Meteorology Surface ozone is a persistent problem in U.S.A. and Europe as w...
A. L. Steiner, R. C. Cohen, R. A. Harley, S. Tonse, A. H. Goldstein, D. B. Millet, and G. W. Schade Department of Atmospheric, Oceanic and Space Sciences, University of Michigan, Ann Arbor MI, USA Department of Chemistry, University of California Berkeley, Berkeley, CA, USA Department of Earth and Planetary Sciences, University of California Berkeley, Berkeley, CA, USA Department of Civil and E...
"VOC emissions from beef feedlot pen surfaces as affected by within-pen location, moisture and temperature" (2015). Air quality Feedlot Gas chromatography Odour VOC A laboratory study was conducted to evaluate the effects of pen location, moisture, and temperature on emissions of volatile organic compounds (VOC) from surface materials obtained from feedlot pens where beef cattle were fed a diet...
Little is known on aphid-induced emissions of volatile organic compounds (VOCs) from trees and particularly on their intraspecific variability in association with resistance traits. We compared VOC emissions from five peach cultivars (Prunus persica (L.) Batsch) and a wild relative (Prunus davidiana (Carrière) Franch) that differ in their level (susceptible/resistant) and type (antixenosis, ant...
The investigation of volatile organic compounds (VOCs) associated with decomposition is an emerging field in forensic taphonomy due to their importance in locating human remains using biological detectors such as insects and canines. A consistent decomposition VOC profile has not yet been elucidated due to the intrinsic impact of the environment on the decomposition process in different climati...
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