Performance validity tests (PVTs) have been shown to relate to neuropsychological performance, but no studies have looked at the ecological validity of these measures. Data from 131 veterans with a history of mild traumatic brain injury from a multicenter Veterans Administration consortium were examined to determine the relation between scores on a self-report version of the Mayo-Portland Adapt...

the purpose of this study is to evaluate the impact of self-fulfilling prophecy on the motivation and performance of national iranian gas company staffs. in this study, considering the importance of peoples’ perception and its role in motivation and consequently their performance in organization, we have tried to investigate the influence of one of these perceptual factors by using the correlat...

ecotones are zones of gradual changes from an ecological system to another.ecotones monitoring could be important to find out the reason for changes and limits. inthis research satellite data were used to analyze the ecotone boundary in fars steppicrangelands using irs liss iii and pan data of year 2006. the real vegetation map andecotones prepared through geo-eye images from google earth softw...

Ecological security is an important research topic, especially urban ecological security. As highly populated eco-systems, cities always have more fragile ecological environments. However, most of the research on urban ecological security in literature has focused on evaluating current or past status of the ecological environment. Very little literature has carried out simulation or prediction ...

Background & Aim: Matricaria aure is one of medicinal plants belonging to Asteraceae family. They naturally grow in some regions of the country and have different medical properties and various applications in medicine production and traditional medications. Ecological conditions have a significant impact on growth, performance, and quality of medical plants. The aim of this research i...

Background & Aim: Matricaria aure is one of medicinal plants belonging to Asteraceae family. They naturally grow in some regions of the country and have different medical properties and various applications in medicine production and traditional medications. Ecological conditions have a significant impact on growth, performance, and quality of medical plants. The aim of this research i...

• Thermo-ecological problem of Ericsson refrigeration cycle is developed and solved. Multi-objective optimization refrigerating investigated. Investigation the effect operating parameters on system performance. sensitivity design variables thermo-ecological objective. In present work, a multi-objective study an irreversible carried out to evaluate cryogenic refrigerator based thermal ecological...

the aim of this study was to analyze the impact of organizational learning and marketing metrics on the marketing performance in the elon plast company of kermanshah province. it is a functional purpose study with descriptive – survey method. the statistical population includes 100 employees of elon plast company in kermanshah province. a sample of 80 people was chosen using cochran formula. da...

A resource based ecological competition model with interference is proposed. The model is based on Lotka-Volterra dynamics with two predators competing for a single, limited prey. Interference effects are considered in this article. When the interference coefficient, expressing the damage effect from its rival, is small, the mathematical analysis shows that the winner in purely exploitative com...