نتایج جستجو برای: exposure assessment

تعداد نتایج: 847241  

1998

A Joint Working Group was established in April 1995 by the President of the Atomic Energy Control Board (AECB) and the Assistant Deputy Minister of the Health Protection Branch of Health Canada to examine the similarities, disparities and inconsistencies between the levels of risk considered acceptable for regulating ionizing radiation and those considered acceptable for regulating chemical and...

Journal: :the international journal of humanities 2008
ahmad reza moinzadeh mohammad reza talebinezhad arash behazin

the present study investigates the effect of different exposure densities on third grade iranian junior high school (ijhs) students’ efl development and retention. it also attempts to explore whether there is any differential performance due to type of post-exposure assessment tasks (recognition vs. written production). performances of five groups of learners receiving equal amount of exposure ...

Journal: :Behaviour research and therapy 2015
Nexhmedin Morina Hiske Ijntema Katharina Meyerbröker Paul M G Emmelkamp

In virtual reality exposure therapy (VRET), patients are exposed to virtual environments that resemble feared real-life situations. The aim of the current study was to assess the extent to which VRET gains can be observed in real-life situations. We conducted a meta-analysis of clinical trials applying VRET to specific phobias and measuring treatment outcome by means of behavioral laboratory te...

ژورنال: طب کار 2014

Background: Studies have shown that dermal exposure to polycyclic aromatic compounds can lead to systemic health effects if the substance is absorbed by the skin. Epidemiologic reports of PAH-exposed workers have noted increased incidences cancer. Methods: According to the low vapor pressure this material, the major route of occupational exposure in some jobs is through dermal exposure. The mor...

Journal: :Korean Journal of Environmental Health Sciences 2013

2009
Lin Fritschi Melissa C. Friesen Deborah Glass Geza Benke Jennifer Girschik Troy Sadkowsky

Assessing occupational exposure in retrospective community-based case-control studies is difficult as measured exposure data are very seldom available. The expert assessment method is considered the most accurate way to attribute exposure but it is a time consuming and expensive process and may be seen as subjective, nonreproducible, and nontransparent. In this paper, we describe these problems...

Journal: :Occupational and environmental medicine 1995
N S Seixas H Checkoway

Quantitative estimation of exposure for occupational epidemiology studies has received increasing attention in recent years and, as a result, a body of methodological literature has begun to take form. This paper reviews the generic issues in the methodology of exposure assessment, particularly methods for quantitative retrospective assessment studies. A simple framework, termed an exposure dat...

A. Angeleska, B. Stojanovska-Dimzoska, D. Jankuloski, D. Koceva, E. Dimitrieska-Stojkovikj, G. Ilievska, G. Stojković, R. Uzunov, Z. Hajrilai-Musliu,

Background: Acrylamide (AA) is an important food contaminant resulted from Maillard reaction during thermal processing of carbohydrate rich food commodities. The present paper reports the data for the AA content in some types of thermally processed starch rich food, and assessment of dietary exposure for the population in North Macedonia. Methods: The AA level was determined employing modified...

Zearalenone (ZEA) mycotoxin is a potent estrogenic metabolite. It is the primary toxin causing infertility, abortion or other breeding problems. A HPLC method was validated for ZEA in foods using a monolithic column with sample clean-up on an immunoaffinity column. A certified reference material (CRM) from FAPAS (UK) was analyzed. A survey of ZEA was performed on the 72 samples of rice, bread, ...

Zearalenone (ZEA) mycotoxin is a potent estrogenic metabolite. It is the primary toxin causing infertility, abortion or other breeding problems. A HPLC method was validated for ZEA in foods using a monolithic column with sample clean-up on an immunoaffinity column. A certified reference material (CRM) from FAPAS (UK) was analyzed. A survey of ZEA was performed on the 72 samples of rice, bread, ...

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