this survey was aimed to investigate factors affecting nurse retention in hospitals of tehran university of medical sciences. the study setting was 14 general and special hospitals in tehran. the samples were recruited from nurses employed in different wards of these hospitals.

provisional cements are commonly used to facilitate retrievability of cement-retained fixed implant restorations; but compromised abutment preparation may affect the retention of implant-retained crowns.the purpose of this study was to investigate the effect of abutment design and type of luting agent on the retentive strength of cement-retained implant restorations.two prefabricated abutments ...

the purpose of this qualitative study is to explore the perception of managers and talents of perceived retention factors in the textile industry in yazd province, iran. in this regard, phenomenography is used to map the different perceptions of both talents and their managers. data were collected through semi-structured interviews with 22 talented individuals who were selected according to an ...

the present study investigated the effect of marginal glosses (both l1 and l2) on incidental vocabulary learning of efl learners. the subject pool consisted of 154 third-semester iranian students enrolled at azad university, central branch. after administering a proficiency test, 90 homogeneous students were assigned to two experimental groups (x1 & x2) and one control group. afterwards, a 50 -...

abectract introduction & objective: acute urinary retention is an unusual symptom among women. this is a case report of acute urinary retention due to endometriosis in a postmenopausal woman. case: the patient was a 49 – years old woman who had referred with dull abdominal pain and acute urinary retention for a few weeks. in physical examination, cervix was displaced anteriorly and superiorly a...

precise registering and transferring of the selected path of insertion and withdrawal of removable, partial dentures is a critical step in designing and fabricating their framework and determining the retention, stability, and support of the completed prosthesis. many authors have addressed this issue in their studies. in this study we present a new technique for registering and reproducing par...

soil water retention curve is one of the crucial input parameters in any modeling study on water flow and solute transport in soils. direct measurement of soil water retention curve is time-consuming and costly. alternatively, pedotransfer functions (ptfs) may be used to indirectly estimate the soil water retention curve from easily measured soil properties. many equations for the soil water re...

In this study, quantitative structure-retention relationship (QSRR) methodology employed for modeling of the retention times of 16 banned pesticides in nano-liquid chromatography (nano-LC) column. Genetic algorithm-multiple linear regression (GA-MLR) method employed for developing global and consensus QSRR models. The best global GA-MLR model was established by adjusting GA parameters. Three de...

objectives: the aim of this study was to evaluate and compare the retentive strength of orthodontic bands cemented with amorphous calcium phosphate (acp)-containing and conventional glass ionomer cements (gics). materials and methods: one-hundred-and-twenty mandibular third molars were embedded in acrylic resin blocks with the buccal surface of crowns perpendicular to the base of the mold. the ...