نتایج جستجو برای: protective structures
تعداد نتایج: 567344 فیلتر نتایج به سال:
objective: the present study aimed to investigate the effects of spiritual well-being and family protective factors on the family strength in a propositional structural model. methods: the research population consisted of all the married people of the isfahan, iran, in 2012 with preschool-aged children and in the first decade of marriage with at least eight grades of educational level. three hu...
objective: the protective effect of silymarin (smn) on mycophenolate mofetil (mmf)–induced duodenal disorders was investigated. materials and methods: forty-two wistar rats were assigned to seven groups including control and test groups. the control animals received saline and the test animals were treated with mmf (30 mg/kg, orally) and saline, mmf and smn (25, 50, and 100 mg/kg, orally), mmf ...
mycophenolate mofetil (mmf) as an immunosuppressive agent is used to prevent graft rejection. one of the adverse effects of long time administration of mmf is the gastrointestinal disorder. this study aimed to investigate the gastroprotective effect of silymarin (smn) on mmf-induced gastrointestinal (gi) disorders. twenty-four adult female wistar rats were assigned into three groups including t...
OBJECTIVE The Québec Incidence Study on situations investigated by child protective services (QIS) has been conducted in 5-year cycles since 1998 in collaboration with all 16 Québec child protection agencies. It provides reliable estimates of the incidence and characteristics of investigated children. The aim of this paper is to discuss major findings from the QIS-2008 and to compare them with ...
Although the known risks of exposure to hazardous drugs have been well documented and disseminated, certain barriers remain in the use of personal protective equipment (PPE) by nurses administering chemotherapy. At Dana-Farber Cancer Institute, a program was developed that incorporated not only monitoring and reporting compliance of the use of PPE, but also engaged the staff in audit and report...
Seismic protective devices in the form of isolation and supplemental damping devices can be effective means in mitigating the seismic responses of structures. The required stiffness and damping values to achieve optimal performance depend on the characteristics of structures and ground motions. Instead of using actively controlled devices, one can select the passive devices to roughly mimic the...
The high number of accidents due to rollovers of agricultural machines has increased the interest of researchers and organizations for standardization in this field. In the 1960s, standards to test rollover protective structures (ROPS) for tractors were designed and approved. Similar standards were introduced in the 1990s for earth-moving machinery, but ROPS standards were not defined for self-...
The purpose of protective clothing and other personal protective equipment (PPE) is to provide escape time, to reduce the burn injury level, and to prevent aggravation of the consequences to workers during exposure to an electric arc. In this study the flammability properties of 12 different types of flame-retardant fabrics were compared with the normally used flame spread test method (EN 532:1...
Introduction of personal protective equipment (PPE) in the process of quantitative exposure and risk assessment should be addressed carefully. PPE which have been designed and manufactured according to CE-criteria and have proved to pass relevant test criteria, can be classified as "proper functioning". However, test criteria for PPE are not equal to levels of protection which can be achieved i...
Pili are essential virulence factors in many Gram-negative bacteria; however, they have not been described in most important Gram-positive pathogens. While screening the sequence of multiple genomes of Group B Streptococcus, we identified protective antigens that formed high molecular weight polymers. Immunogold electron microscopy revealed that the structures have a pilus-like form. These larg...
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