نتایج جستجو برای: exposure limit

تعداد نتایج: 491019  

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان سیستان و بلوچستان 1378

ایمپلنت h.a چشمی در ابتدا بوسیله آرتورپری در 1985 بکار رفته برای استفاده عمومی در 1989 بوسیله fda، توسعه یافت . ما در یک مطالعه مقطعی، عوارض ایجاد شده در بیمارانی را که بعد از تخلیه چشم در آنها کره هیدروکسی آپاتیت کار گذاشته شده بود، بررسی کردیم. این مطالعه بر روی بیماران از سال 1372 تا 1377 انجام شده است . از بین 30 مورد بیمار مورد مطالعه، 8 مورد (26 درصد) دچار عارضه شده بودند که 6 نفر آنها مر...

ژورنال: سلامت کار ایران 2018

Background and aims: Exposure to the normal hexane can induce dysfunction of the nervous system and color vision impairment. Occupational risk assessment is established according to no observed adverse effect levels (NOAEL). Recently, because of the NOAEL’s limitations, the benchmark responses were applied for risk assessment. The study’s aim is an analysis of benchmark response in occupational...

2015

Although crystalline silica has been recognized as a health hazard for many years, it is still encountered in many work environments. Numerous studies have revealed an association between exposure to respirable crystalline silica and the development of silicosis and other lung diseases including lung cancer. Alberta Jobs, Skills, Training and Labour conducted a project to evaluate exposure to c...

2004
Johan Jeuring

There exist several eLearning tools, with varying functionality and purpose. We think that in the coming years we will see many developments and possibilities in the eLearning tools research field. Relatively recent developments that will have a significant impact on eLearning tools are the development of standards for specifying educational material, and the development of methods for construc...

2015
Nils Kunze Cathrin Weigel Wolfgang Vautz Katrin Schwerdtfeger Melanie Jünger Michael Quintel Thorsten Perl

BACKGROUND Occupational exposure to sevoflurane has the potential to cause health damage in hospital personnel. Workplace contamination with the substance mostly is assessed by using photoacoustic infrared spectrometry with detection limits of 10 ppbv. Multi-capillary column-ion mobility spectrometry (MCC-IMS) could be an alternative technology for the quantification of sevoflurane in the room ...

Journal: :Curationis 1985
P W Coetzer G P Menyatso M Mosisidie

Die skrywer glo dat opnames onder hoërskoolleerlinge waardevoUe demografiese inligting kan voorsien. Die uitvoerbaarheid hiervan is in die veld getoets. In die bespreking van die bevindings stel die skrywer ’n stelsel vir die registrasie van geboortes en sterftes in nasionale state voor waarin die gemeenskapsverpleegkundige en piaaslikc kliniek gebruik word. Watter wyse van registrasie ook op b...

2017
Simeon J.A. Visscher Henk F. van Stel

This article provides both qualitative and quantitative data on practice variation amongst preventive child healthcare professionals in the prevention of child maltreatment in the Netherlands. Qualitative data consist of topics identified during interviews with 11 experts (with quotes), resulting in an online survey. The quantitative data are survey responses from 1104 doctors and nurses workin...

فرهنگ دهقان, سمیه, محمدی, حمزه, نورمحمدی, محمد, گل بابایی, فریده,

Introduction: Exposure to crystalline silica dust can seriously threaten health of workers engaged in processes such as casting, stone crushing, grinding, construction activities, insulator manufacturing, and glassblowing and sandblasting. The aim of this study was to assess occupational exposure to crystalline silica and to determine the risk of mortality from silicosis and lung cancer in an i...

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