The aim of this study was to analyze the cultural adaptation of the European Spanish version of the Perceived Stress Scale (PSS; Cohen, Kamarak, & Mermelstein, 1983), for its use in Mexican samples. Using a random sample of students, internal consistency was analyzed and the factor structure of the Spanish version of the PSS was compared with the factor structure found in the English version. I...

background there are some specific measures for the evaluation of postpartum quality of life, and each have some limitations. objectives this study investigated the validity and reliability of the persian version of a postpartum women’s quality of life (pqol) questionnaire at the eighth week of postpartum. patients and methods this was a methodological research, and subjects were 500 women, age...

This research reviews the task-technology fit literature and draws parallels with the internal-external efficacy model recently developed by Eden (2001). In particular, it argues that the construct of task-technology fit, operationalized with perceptual measures as is commonly done, is equivalent to the concept of means efficacy included in the internal-external efficacy model. As a result, the...

The aim of this study is to quantify the effect of the crystallization process on lithium disilicate ceramic crowns fabricated using a computer-aided design/computer-aided manufacturing (CAD/CAM) system and to determine whether the effect of crystallization is clinically acceptable by comparing values of fit before and after the crystallization process. The mandibular right first molar was sele...

For teeth restoring single metal-ceramic crowns were the gold-standard for many years. Selective laser sintering is a new technology which can provide accurate complex-shaped frameworks for dental restorations, layer-by-layer, according to a three-dimensional computer model, using metal powder. An important factor for long term success of fixed prostheses is the marginal and internal adaptation...