background:  the metal  framework  of a removable partial denture includes various parts and metal components that supply strength, retention, stability ,  and support of partial denture.  the purpose of this study is assessing the quality of the frameworks made in  the  department of prosthodontics, qazvin school of  dentistry , regarding  their causes of malfunction,  retention, stability ,  ...

the general objective of this study was to develop a highly efficient, economical andintegrated technology for the removal of nitrogen compounds through denitrification via nitrite. toachieve this, a modified uasb reactor was designed, set-up and operated using chilean zeolite asmicrobial support. the results were compared to a conventional uasb reactor used as control. thevolume of each reacto...

estimation of the conceptual costs in construction projects can be regarded as an important issue in feasibility studies. this estimation has a major impact on the success of construction projects. indeed, this estimation supports the required information that can be employed in cost management and budgeting of these projects. the purpose of this paper is to introduce an intelligent model to im...

ru/al2o3 catalysts were prepared by conventional incipient wetness impregnation as well as colloid deposition of rucl3 precursor via in situ reduction with ethylene glycol (polyol) method on alumina support. the samples were characterized by tem, xrd and tpr techniques. the catalytic performance tests were carried out in a fixed-bed micro-reactor under different operating conditions. ethylene g...

finding repetitive subsequences in genome is a challengeable problem in bioinformatics research area. a lot of approaches have been proposed to solve the problem, which could be divided to library base and de novo methods. the library base methods use predetermined repetitive genome’s subsequences, where library-less methods attempt to discover repetitive subsequences by analytical approaches. ...

objective: this survey aimed at finding a model for determining the direct and indirect effects of spouse abuse on the psychological health of victimized women as well as analysis of the mediating roles of social support and coping mechanisms on the relationship between spouse abuse and psychological health condition. methods: a total of 192 women were selected by random sampling. they complete...

background and aim: postpartum period is an exclusive period after birth which can act as a potential stressor and could be accompanied with psychological disorders. social support could play an important role in maternal mental health. considering various stressors and different levels of social support for women, this study aimed to compare postpartum stressors as well as social support level...

introduction: diagnostic values reported for ultrasonographic screening of acute appendicitis vary widely and are dependent on the operator’s skill, patient’s gender, weight, etc. the present study aimed to evaluate the effect of operator skill on the diagnostic accuracy of ultrasonography in detection of appendicitis by comparing the results of ultrasonography done by radiologists and emergenc...

introduction: doing chest x ray (cxr) for all trauma patients is not efficient and cost effective due to its low diagnostic value. the present study was designed aiming to evaluate the diagnostic accuracy of thoracic injury rule out criteria (tirc) in prediction of traumatic intra-thoracic injuries and need for cxr.  method: the present study is a prospective cross-sectional study that has been...

prediction of the outcome and severity of acute upper gastrointestinal bleeding (ugib) has significant importance in patient care, disposition, and determining the need for emergent endoscopy. recent international recommendations endorse using scoring systems for management of non-variceal ugib patients. to date, different scoring systems have been developed for predicting the risk of 30-day mo...