نتایج جستجو برای: آلاینده pm

تعداد نتایج: 41399  

Journal: :Journal of epidemiology 2008
Lu Ma Masayuki Shima Yoshiko Yoda Hirono Yamamoto Satoshi Nakai Kenji Tamura Hiroshi Nitta Hiroko Watanabe Toshiyuki Nishimuta

BACKGROUND The effects of airborne particulate matter (PM) are a major human health concern. In this panel study, we evaluated the acute effects of exposure to PM on peak expiratory flow (PEF) and wheezing in children. METHODS Daily PEF and wheezing were examined in 19 asthmatic children who were hospitalized in a suburban city in Japan for approximately 5 months. The concentrations of PM les...

This paper deal with the solutions of the systems of difference equations $$x_{n+1}=frac{y_{n-3}y_nx_{n-2}}{y_{n-3}x_{n-2}pm y_{n-3}y_n pm y_nx_{n-2}}, ,y_{n+1}=frac{y_{n-2}x_{n-1}}{ 2y_{n-2}pm x_{n-1}},,nin mathbb{N}_{0},$$ where $mathbb{N}_{0}=mathbb{N}cup left{0right}$, and initial values $x_{-2},, x_{-1},,x_{0},,y_{-3},,y_{-2},,y_{-1},,y_{0}$ are non-zero real numbers.

Objective(s): Particulate matter (PM) exposure can promote cardiac ischemia and myocardial damage. The effects of PM10 on hemodynamic parameters, lipid peroxidation, and infarct size induced by ischemia-reperfusion injury and the protective effects of vanillic acid (VA) in isolated rat heart were investigated. Materials and Methods: Eighty male Wistar rats (250–300 g) were divided into 8 groups...

Journal: :Atmospheric chemistry and physics 2011
H Shen C Anastasio

Previous studies have suggested that the adverse health effects from ambient particulate matter (PM) are linked to the formation of reactive oxygen species (ROS) by PM in cardiopulmonary tissues. While hydroxyl radical ((•)OH) is the most reactive of the ROS species, there are few quantitative studies of (•)OH generation from PM. Here we report on (•)OH formation from PM collected at an urban (...

Journal: :The Journal of pharmacology and experimental therapeutics 2000
M A Robin V Descatoire M Le Roy A Berson F P Lebreton M Maratrat F Ballet J Loeper D Pessayre

Anti-cytochrome P450 (CYP)1A2 autoantibodies are found in dihydralazine-induced hepatitis, and CYPs2B and 2C have been shown to follow vesicular flow to the plasma membrane (PM). However, it is unknown whether other CYPs follow this route, whether NADPH-CYP reductase is present on the hepatocyte surface, and whether autoimmune hepatitis-inducing drugs increase PM CYPs. In this study, we determi...

Journal: :Psychological research 2014
Moritz Walser Franziska Plessow Thomas Goschke Rico Fischer

Previous studies have shown that completed prospective memory (PM) intentions entail aftereffects in terms of ongoing-task-performance decrements in trials containing repeated PM cues which previously served as PM cues triggering the intended action. Previous research reported that PM aftereffects decrease over time, thus revealing a specific time course of PM aftereffects. In the present study...

2004
Aneta Dudek A. Paweł Wojda

By Pm we denote a path of order m. A graph G is said to be Pm − saturated if G has no subgraph isomorphic to Pm and adding any new edge to G creates a Pm in G. In 1986 L. Kászonyi and Zs. Tuza considered the following problem: for given m and n find the minimum size sat(n;Pm) of Pm-saturated graph and characterize the graphs of Sat(n; Pm) – the set of Pm-saturated graphs of minimum size. They h...

Journal: :The Journal of biological chemistry 2003
Thomas O Metz Nathan L Alderson Mark E Chachich Suzanne R Thorpe John W Baynes

Maillard or browning reactions between reducing sugars and protein lead to formation of advanced glycation end products (AGEs) and are thought to contribute to the pathogenesis of diabetic complications. AGE inhibitors such as aminoguanidine and pyridoxamine (PM) inhibit both the formation of AGEs and development of complications in animal models of diabetes. PM also inhibits the chemical modif...

Journal: :Psychiatry research 2015
Tian-Xiao Yang Zi-Wen Peng Ya Wang Fu-Lei Geng Guo-Dong Miao David H K Shum Eric F C Cheung Raymond C K Chan

We comprehensively examined prospective memory (PM) performance in patients with obsessive-compulsive disorder (OCD), and explored the cognitive and psychopathological correlates of PM in this clinical population. Fifty-eight OCD patients and 58 healthy controls were assessed with computer-based PM tasks and related neurocognitive functions, and the participants also reported frequency of PM fa...

Journal: :تحقیقات نظام سلامت 0
کاظم ندافی دانشیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت و انستیتو تحقیقات بهداشتی، دانشگاه علوم پزشکی تهران، تهران، ایران. رامین نبی زاده دانشیار، گروه مهندسی بهداشت محیط، دانشکده بهداشت و انستیتو تحقیقات بهداشتی، دانشگاه علوم پزشکی تهران، تهران، ایران. شاهرخ نظم آرا کارشناسی ارشد، گروه مهندسی بهداشت محیط، دانشکده بهداشت و انستیتو تحقیقات بهداشتی، دانشگاه علوم پزشکی، تهران، ایران. حشمت اله نورمرادی دانشجوی دکتری، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران. فاضل محمدی مقدم دانشجوی دکتری، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران.

background: contemporary development of growing urban communities and increasing the economical and industrial activities in the current century without paying attention to assess the effect of these activities on human health, as the axis of the development, is caused urban air pollution and risks from different pollutant emissions. tehran air pollution has received considerable media coverage...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید