نتایج جستجو برای: benzene family

تعداد نتایج: 439577  

Journal: :international journal of occupational and environment medicine 0
o aminian department of occupational medicine, faculty of medicine, tehran university of medical sciences, tehran, iran s hashemi center for research on occupational diseases, tehran university of medical sciences, tehran, iran k sadeghniiat-haghighi occupational sleep research center, tehran university of medical sciences, tehran, iran a shariatzadeh ziaeeyan training hospital, tehran university of medical sciences,tehran, iran ah naseri esfahani department of occupational medicine, school of medicine, hormozgan university of medical sciences, bandar abbas, iran

background: exposure to organic solvents is common among workers. objective: to assess neurobehavioral effects of long-term exposure to organic solvents among rubber workers in tehran, iran. methods: across-sectional study was conducted on 223 employees of a rubber industry. the participants completed a data collection sheet on their occupational and medical history, and demographic characteris...

2011
Matthew North Vickram J. Tandon Reuben Thomas Alex Loguinov Inna Gerlovina Alan E. Hubbard Luoping Zhang Martyn T. Smith Chris D. Vulpe

Benzene is a ubiquitous environmental contaminant and is widely used in industry. Exposure to benzene causes a number of serious health problems, including blood disorders and leukemia. Benzene undergoes complex metabolism in humans, making mechanistic determination of benzene toxicity difficult. We used a functional genomics approach to identify the genes that modulate the cellular toxicity of...

Journal: :British journal of industrial medicine 1987
S N Yin Q Li Y Liu F Tian C Du C Jin

Of a total of 528,729 workers exposed to benzene or benzene mixtures in China, 508,818 (96.23%) were examined. Altogether 2,676 cases of benzene poisoning were found, a prevalence of 0.15%. A higher prevalence of benzene poisoning was found in the cities of Hangjou, Hefei, Nanjing, Shenyang, and Xian. The geometric mean concentration of benzene in 50,255 workplaces was 18.1 mg/m3 but 64.6% of t...

Journal: :international journal of nanoscience and nanotechnology 2014
f. pourfayaz sh. boroun j. babaei b. ebrahimi hoseinzadeh

in order to evaluate the adsorption potential of multi-walled carbon nanotubes (mwcnts) for benzene, toluene and xylenes (btx), the adsorption capacities of benzene and toluene on two different mwcnts were measured using a gas-chromatography (gc) and then compared with each other. fourier transform infrared (ftir) was employed to investigate the presence of functional groups on the carbon nanot...

Journal: :iranian journal of mathematical chemistry 2016
f. shafiei m. pashm froush f. dialamehpour

qspr study on benzene derivatives have been made using recently introduced topological methodology. in this study the relationship between the randic' (x'), balaban (j), szeged (sz),harary (h), wiener (w), hyperwiener and wiener polarity (wp) to the thermal energy (eth), heat capacity (cv) and entropy (s) of benzene derivatives is represented.physicochemical properties are taken from the quantu...

Multi-Walled Carbon Nanotubes (MWCNTs) surfaces were serially modified by the annealing treatment under Helium flow at 1000oC, the nitric acid treatment and again the annealing treatment under same conditions and their maximum adsorption capacities for benzene and toluene were measured and analyzed. The unmodified and modified MWCNTs werecharacterized by Fourier Tr...

Journal: :Environmental Health Perspectives 1996
R Snyder C C Hedli

Benzene toxicity involves both bone marrow depression and leukemogenesis caused by damage to multiple classes of hematopoietic cells and a variety of hematopoietic cell functions. Study of the relationship between the metabolism and toxicity of benzene indicates that several metabolites of benzene play significant roles in generating benzene toxicity. Benzene is metabolized, primarily in the li...

Journal: :Carcinogenesis 2010
Helen J Badham David P LeBrun Allison Rutter Louise M Winn

Childhood cancer is the leading cause of disease-related death in children aged 1-14 years in Canada and the USA and it has been hypothesized that transplacental exposure to environmental carcinogens such as benzene may contribute to the etiology of these cancers. Our objectives were to determine if transplacental benzene exposure increased tumor incidence in mouse offspring and assess fetal be...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده زبانهای خارجی 1391

the present study has tried to accomplish an analysis of margaret atwood’s novels oryx and crake, and the year of the flood in the light of posthuman and cyborg theories. considering posthumanism as a critical reading of some notions of humanism focus of which in this thesis has been identity, new definitions for humanity and human identity are formed. haraway’s cyborg, as one possible new figu...

Journal: :Environmental microbiology 2007
Marcio L B Da Silva Pedro J J Alvarez

Benzene is a common groundwater pollutant that is often recalcitrant under the anaerobic conditions that prevail at hydrocarbon-contaminated aquifers. Thus, determining the potential for anaerobic benzene degradation is important to assess the feasibility of intrinsic bioremediation. In this work we developed a 16S rRNA biomarker to estimate the concentration of putative benzene degraders in a ...

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