نتایج جستجو برای: chemical indicators
تعداد نتایج: 483744 فیلتر نتایج به سال:
OBJECTIVE To investigate inequalities in personal health conditions and in the utilization of healthcare services according in relation to the individual's status in the labor market. METHODS This study was based on 39,925 males aged 15 to 64 years living in 10 Brazilian metropolitan regions, who took part in the 1998 National Household Survey. They were classified as formal labor, informal l...
BACKGROUND Recently, quality is a serious concern in development of organizations. There are various indicators to assess quality and the purpose of this study was to identify the main indicators for quality measurement of Iranian health centers. METHODS This qualitative study was conducted in three stages: first, review of the literature was performed to identify different indicators for qua...
1. Traditionally the assessment of river water quality has been based solely on the measurement of physical, chemical and some biological characteristics. While these measurements may be efficient for regulating effluent discharges and protecting humans, they are not very useful for large-scale management of catchments or for assessing whether river ecosystems are being protected. 2. Measuremen...
BACKGROUND Health-care-associated infections are a major threat to the safety of patient care. Control of such problem is a major criterion for hospital accreditation. This study was aimed to determine the developing use of chemical (class 6 products) and biological indicators in Tabriz district hospitals since 1997 to 2011. METHODS We conducted this time-trend interventional study with all o...
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