نتایج جستجو برای: low exposure density led

تعداد نتایج: 1942104  

ژورنال: مجله طب نظامی 2019

Background and Aim: Combined exposure to noise and temperature can affect the neurophysiological responses of the office staff. The present study was done to investigate the impacts of combined exposure to noise and low air temperature on physiological responses and environmental comfort. Methods: In this experimental study, the studied population included the students who were randomly selecte...

Journal: :چغندرقند 0
سعید صادقزاده حمایتی استادیار مؤسسه تحقیقات چغندرقند

in order to evaluate the effect of sugar beet sowing date, planting density and cultivar on solar radiation interception, a study was conducted in kamal-abad agricultural research station of sugar beet seed institute (sbsi) in 2005 and 2006. the experimental design was split-split plots based on randomized complete block design (rcbd) with three replications with two sowing dates as the main pl...

A. Talaeepour, E. Jazayeri, V. Changizi,

ABSTRACT Background: The radiographic image accuracy depends on the X-ray film information visibility. Good visibility is found by good contrast. Radiation exposure parameters (kVp, mAs) and film processing conditions have impact on contrast. In dentistry radiography machines, exposure time and processing procedure are set by radiographer. No optimized exposure time and process...

Journal: :avicenna journal of medical biochemistry 0
abbas mohammadi department of biochemistry, afzalipour school of medicine, kerman university of medical sciences, kerman, iran ; physiology research centre, afzalipour school of medicine, kerman university of medical sciences, kerman, iran fateme mirzaei student research committee, hamadan university of medical sciences, hamadan, iran mohammad nabi moradi student research committee, hamadan university of medical sciences, hamadan, iran mohammad jamshidi student research committee, hamadan university of medical sciences, hamadan, iran reza yari department of biology, islamic azad university, boroūjerd branch, boroūjerd, iran tayebeh ghiasvand department of biochemistry and nutrition, hamadan university of medical sciences, hamadan, iran

objectives the aim of this study was to examine the effect of flaxseed on gene expression of intestinal transporters: niemann-pick c1 like 1 (npc1l1), atp-cassette binding proteins g5 (abcg5) and g8 (abcg8). methods animals were randomly divided into 3 groups 8 rats in each group: group1; normal diet, group2; diabetic rats, and group3; diabetic rats + 4% (w/w) flaxseed. after one-month rats wer...

Introduction: Exposure to the low frequency electric and magnetic fields (ELF-EMF) is very common in workers occupied in the combined cycle power plant during work shifts  The present study aimed to measure ELF-EMF flux density among shift and non-shift workers, determine job stress among workers and office workers, and identify major factors associated with job stress in the studied groups. M...

Journal: :medical journal of islamic republic of iran 0
a a. samadi from the dept of biochemistry, pasteur institute of iran, tehran s alvani the dept. of biochemistry, kashan medical university, kashan, iran m ghazi-khonsari the dept. of toxicology, tehran university of medical sciences, tehran, iran.

human serum paraoxonase (pon) associated with high density lipoprotein (hdl) , has been postulated to have a role in protecting low-density lipoprotein (ldl) against oxidative damage, which has led to the proposal that pon is an anti-atherogenic and anti-inflammatory enzyme. it has genetic polymorphism at the 191 (r ->q) and two alloenzymes a and b and three phenotypes a, b, and ab. we examined...

Journal: :The European respiratory journal 2015
Mathieu C Morissette Pamela Shen Danya Thayaparan Martin R Stämpfli

Overwhelming evidence links inflammation to the pathogenesis of smoking-related pulmonary diseases, especially chronic obstructive pulmonary disease (COPD). Despite an increased understanding of the disease pathogenesis, mechanisms initiating smoking-induced inflammatory processes remain incompletely understood. To investigate the mechanisms that initiate and propagate smoke-induced inflammatio...

2006
Agneta Åkesson Per Bjellerup Thomas Lundh Jonas Lidfeldt Christina Nerbrand Göran Samsioe Staffan Skerfving Marie Vahter

High cadmium exposure is known to cause bone damage, but the association between low-level cadmium exposure and osteoporosis remains to be clarified. Using a population-based women's health survey in southern Sweden [Women's Health in the Lund Area (WHILA) ] with no known historical cadmium contamination, we investigated cadmium-related effects on bone in 820 women (53-64 years of age) . We mea...

Journal: :Epidemiology and infection 2013
L A MacRitchie C J Hunter N J C Strachan

A questionnaire survey was undertaken to determine the exposure of a study population to campylobacteriosis source risk factors (environmental, water, food) and results were stratified by age, population density and deprivation. Data were gathered using an exposure assessment carried out by telephone in the Grampian region of Scotland. Univariate analysis showed that children aged 5-14 years, l...

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