نتایج جستجو برای: hazards
تعداد نتایج: 39393 فیلتر نتایج به سال:
conclusions by controlling the modifiable risk factors and modality of treatment in our study, physicians can reach more effective treatment. results at the end of the study, long-term graft failure was seen in 27 (10.2%) cases. one-year and 2-year graft survival after diagnosis of cancer were 93.6% and 91.7%, respectively. the univariate analysis showed that the incidence of chronic graft loss...
background: vegetation (food stuff) is grown in soil that contains many radioactive elements such as 238u (uranium), 232th (thorium) and 40k (potassium), which may get deposited either due to radioactive fallout or/and by absorption from the soil and can pose serious health hazards. materials and methods: natural radioactivity, radiological hazards and annual effective dose assessment was carri...
the laser technology offers a wide range of uses in dentistry with certain advantages to the general dental practitioner like bloodless surgery, minimal post-operative pain, reduction of operative time and high patient acceptance. patient acceptance has also been demonstrated in various studies. apart of these major advantages, safety regarding the use of lasers cannot be neglected and has beco...
Background: Although idiopathic azoospermia is a common reason for male infertility, the known etiological factors for this disease are remarkably very little. Recent evidences suggest that some occupational physical and chemical hazards could have negative effects on reproductive function and semen quality parameters of exposed workers. This study conducted to compare demographic characteristi...
background: needle injuries are one of the most important hazards threatening the health of medical personnel, which can transmit more than 20 infectious pathogens. this study was conducted in order to evaluate the knowledge and practice of the medical staff at ali-ebne-abitaleb hospital of rafsanjan, iran, in regard to the hazards of needle injuries. methods: this cross sectional study was con...
aspergillus species in indoor environments and their possible occupational and public health hazards
abstract the genus aspergillus, which consists of a few hundred opportunistic mold species found in various climatic conditions, causes diseases including localized infections, fatal diseases, allergic responses, and inhaled conidia in humans. herein, we present an overview of the most common diseases and allergic infections caused by aspergillus species and their associated health hazards in v...
introduction this study was conducted to evaluate the radiographers’ awareness of radiation protection principles in the radiology centers of the hospitals of bandar abbas, iran. materials and methods this analytical cross-sectional study was conducted on 50 radiographers of three hospitals affiliated with hormozgan university of medical sciences in 2015. the data were collected using a two-par...
honey is the oldest natural food produced by honeybee and comprises wide variety of valuable ingredients including carbohydrate, proteins, minerals, vitamins, organic acids, polyphenols and flavonoids that contribute to well-known therapeutic properties. this review provide available scientific information on different ways of honey adulteration and chemical contamination with the certain focus...
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