نتایج جستجو برای: signs of violence such as gun
تعداد نتایج: 21473724 فیلتر نتایج به سال:
background and purpose: violence is defined as unnecessary hostile behavior in clinical environments, which may lead to psychological abuse by colleagues. this systematic review aimed to evaluate violence and its associated factors among nurses. methods: in this study, we searched for articles and patented documentations published until december 2014 via databases such as pubmed, medline, scopu...
there is no doubt that human being needs to become integrated with industry and industry needs to be progressed, daily. on the other hand, serious events in industrial units specially in oil industries has been shown that such damages and events are industry related ones. the consequence of such events and damages which resulted in chemical and poisoned explosions and loss of life and property ...
the main purpose of this research was to:1.develop a coking model for thermal cracking of naphtha.2.study coke inhibition methods using different coke inhibitors.developing a coking model in naphtha cracking reactors requires a suitable model of the thermal cracking reactor based on a reliable kinetic model.to obtain reliable results all these models shall be solved simultaneously.for this pu...
today the image of a permanent skeletal space of cities affected by some forces or mechanisms is put in time with social-economic development and while imposes a new face and perspective to physical anatomy of cities, and prepares field to changes in content and social- economic structures of cities too. simultaneously with quitting villages in order to settle in cities by villagers, the phen...
BACKGROUND Many scientific studies have shown that the mere presence of guns can increase aggression, an effect dubbed the "weapons effect." The current research examines a potential source of the weapons effect: guns depicted in top-selling films. METHODS Trained coders identified the presence of violence in each 5-minute film segment for one-half of the top 30 films since 1950 and the prese...
Estimating the Causal Effect of Gun Prevalence on Homicide Rates: A Local Average Treatment Effect Approach This paper uses a “local average treatment effect” (LATE) framework in an attempt to disentangle the separate effects of criminal and noncriminal gun prevalence on violence rates. We first show that a number of previous studies have failed to properly address the problems of endogeneity, ...
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