Studying the relationship between human resource practice with organizational citizenship behavior by emphasizing the role of organizational commitment in Agricultural Banks of Golestan Province

The main goal of this research is studying the relationship between human resource practices with organizational citizenship behaviors by emphasizing the role of organizational commitment in Agricultural banks of Golestan province. The design of research is a definition of a sort of measurement and statistical population of 360 clerks of Agricultural Banks of Golestan province. The number of sample, according to the Krejcie and Morgan table is 186 people and for sampling the Stratified random sampling was used. Measurement tools containing three surveys which were used for measurement of human resource actions, Laawer survey (1986) and organizational commitment by measuring Meyer and Allen (1990) and consequently, for weighing the organizational citizenship of standard Podsakoff et al (1990). The findings showed that there is no meaningful relationship between the actions of human resources and organizational behaviors by pointing the role of organizational commitment in Agricultural Banks of Golestan province

Studying the relationship between human resource practice with organizational citizenship behavior by emphasizing the role of organizational commitment in Agricultural Banks of Golestan Province

The main goal of this research is studying the relationship between human resource practices with organizational citizenship behaviors by emphasizing the role of organizational commitment in Agricultural banks of Golestan province. The design of research is a definition of a sort of measurement and statistical population of 360 clerks of Agricultural Banks of Golestan province. The number of sample, according to the Krejcie and Morgan table is 186 people and for sampling the Stratified random sampling was used. Measurement tools containing three surveys which were used for measurement of human resource actions, Laawer survey (1986) and organizational commitment by measuring Meyer and Allen (1990) and consequently, for weighing the organizational citizenship of standard Podsakoff et al (1990). The findings showed that there is no meaningful relationship between the actions of human resources and organizational behaviors by pointing the role of organizational commitment in Agricultural Banks of Golestan province

Studying the relationship between human resource practice with organizational citizenship behavior by emphasizing the role of organizational commitment in Agricultural Banks of Golestan Province

The main goal of this research is studying the relationship between human resource practices with organizational citizenship behaviors by emphasizing the role of organizational commitment in Agricultural banks of Golestan province. The design of research is a definition of a sort of measurement and statistical population of 360 clerks of Agricultural Banks of Golestan province. The number of sample, according to the Krejcie and Morgan table is 186 people and for sampling the Stratified random sampling was used. Measurement tools containing three surveys which were used for measurement of human resource actions, Laawer survey (1986) and organizational commitment by measuring Meyer and Allen (1990) and consequently, for weighing the organizational citizenship of standard Podsakoff et al (1990). The findings showed that there is no meaningful relationship between the actions of human resources and organizational behaviors by pointing the role of organizational commitment in Agricultural Banks of Golestan province

Evaluation of 5.8S rRNA to identify Penaeus semisulcatus and its subspecies, Penaeus semisulcatus persicus (Penaeidae) and some Decapoda species

The green tiger prawn, Penaeus semisulcatus is one of the most important members of the family Penaeidae in the Persian Gulf. Based on the morphological characteristics, two groups, including P. semisulcatus and its subspecies viz. P. s. persicus are recognized. This study was conducted to investigate the genetic distance between P. semisulcatus and P. s. persicus by analyzing partial sequence of 5.8S rRNA. Another objective of this study is to evaluate the ability of 5.8S rRNA to identify the species of Decapoda. The results indicated that the 5.8S rRNA gene of both P. semisulcatus and P. s. persicus were exactly identical, and sequence variation was not observed. The results also indicated that 5.8S rRNA sequences between species of the same genus of analysed species of Decapoda are conserved, and no genetic distance was observed in species level. The low evolutionary rate and efficient conservation of the 5.8S rRNA can be attributed to its role in the translation process.

Inverse modelling of desorption tests to establish the hydraulic conductivity of unsaturated sands

Conductivité hydraulique non saturée est un paramètre important pour caractériser le comportement des sols non saturés. Ce paramètre peut être utilisé pour modéliser l'écoulement de l'eau dans les sols. Le défaut de mesure ou d'estimation de ce paramètre avec une précision fiable peut causer des incidents catastrophiques. La mesure de la conductivité hydraulique des sols non saturés peut être longue et coûteuse. Des méthodes directes et indirectes peuvent être utilisées pour établir ce paramètre. Dans cette étude, en vue de réduire le temps et le coût de la mesure de la conductivité hydraulique des sols non saturés nécessaires par les méthodes directes, la modélisation inverse a été utilisée comme une méthode indirecte pour estimer ce paramètre. Des essais de laboratoire ont été effectués pour trouver la courbe de rétention d'eau des différents échantillons de sol étudié. Les résultats expérimentaux obtenus ont été utilisés pour effectuer la modélisation inverse, et la conductivité hydraulique non saturée de chaque échantillon a été estimé.Unsaturated hydraulic conductivity is an important parameter to characterize unsaturated soils behaviour. This parameter can be used to model flow of water in soils. Failure in measuring or estimating this parameter with a reliable precision can cause catastrophic incidents. Measuring unsaturated hydraulic conductivity can be expensive and time consuming. Direct and indirect methods can be used to determine this parameter. In this study, in order to decrease the time and the expense of measuring unsaturated hydraulic conductivity by direct methods, inverse modelling was used as an indirect method to estimate this parameter. Some laboratory tests were performed to find water retention curve of different samples of the studied soil. Obtained experimental results were used to perform inverse modelling, and unsaturated hydraulic conductivity of each sample was estimated

Antimutagenicity effect of Citrus nobilis

Currently cancer is considered as one of the main factors of mortality globally. Many chemicals in our environment can cause genetic mutations and are potentially responsible for millions of cancer-related deaths. Nowadays the scientists are looking for food materials which can potenthially prevent the cancer occurrence. The purpose of this research is to examine antimutagenicity and anticancer effect of Citrus nobilis . The Citrus nobilis  was subsequenthy evaluated in terms of antimutagenicity properties by a standard reverse mutation assay (Ames Test). This was performed with histidine auxotroph strain of Salmonella typhimurium(TA100) .Thus, it requires histidine from a foreign supply to ensure its growth.The aforementioned strain gives rise to reverted colonies when expose to carcinogen substance (Sodium Azide). In Ames Test the Citrus nobilis prevented the reverted mutations and the hindrance percent of Citrus nobilis was 72.46% . This is the first study that have revealed antimutagenicity effect of Citrus nobilis.

Post-Surge Flow Prediction in Multi-Stage Compressors

RÉSUMÉ Le pompage est une instabilité aérodynamique uni-dimensionnelle dans une turbine à gaz caractérisée par l’apparition de pulsations axiales allant jusqu’à une inversion globale du sens de l’écoulement et qui est très dommageable pour la performance de l’intégrité physique du moteur d’avion. La capacité de prédire les propriétés de l’écoulement pendant le pompage à différents endroits dans le compresseur aiderait les concepteurs à optimiser le design de plusieurs composantes du moteur pour mieux résister aux forces aérodynamiques impliquées. L’objectif de cette recherche est de développer une méthode rapide et efficace pour prédire la fluctuation des propriétés de l’écoulement à n’importe quelle section dans un compresseur multi-étagés et qui serait utilisable au stage préliminaire de conception du moteur lorsque les détails sur la géométrie du compresseur sont encore limités. Suite à une revue de littérature sur les différentes méthodes pour simuler le pompage, une approche analytique a été choisie. La méthode développée dans ce projet est bâtie sur un modèle analytique de type lumped-parameter proposé il y a plus de trois décennies pour simuler le pompage dans des compresseurs axiaux de basse vitesse (écoulement incompressible). Ce modèle traitait le compresseur comme un semi-actuator disk à travers duquel l’augmentation de pression instantanée est obtenue à partir d’une courbe caractéristique en régime-permanent moins l’effet de l’inertie du fluide dans le compresseur. Le compresseur ainsi modélisé est couplé à une modèle 1-D des composantes en aval, soient un plenum pour la chambre à combustion et une valve pour la turbine. À travers ce travail, ce modèle a été amélioré en appliquant l’augmentation de pression en régime permanent et l’effet d’inertie du fluide aux sous-sections du compresseur pour facilement prédire les fluctuations de pression à l’intérieur du compresseur une fois que la prédiction du pompage pour le compresseur en entier ait été obtenue. La démonstration analytique de l’applicabilité de ce modèle aux compresseurs non-axiaux a été faite. Ce modèle incompressible a été appliqué à trois géométries de compresseurs différentes pour lesquels des données expérimentales et/ou de simulations numériques de l’écoulement (CFD) pour le pompage sont disponibles. Ces géométries sont un compresseur axial de basse vitesse (incompressible) de trois étages, un compresseur axial-centrifuge de basse vitesse et un compresseur industriel non-axial bi-étagé de haute vitesse (régime hautement compressible).----------ABSTRACT Surge is a one-dimensional aerodynamic instability originating in the compressor of gas turbine engines. It is characterized by the appearance of axial fluctuations that can involve reversal of the flow throughout the engine. Surge is damaging both to the performance and the physical integrity of the engine. The ability to predict the flow properties during surge at different points inside the compressor will help designers optimize the design of engine components to better withstand the aerodynamic loads involved. The objective of this research is to develop a rapid and efficient method to predict fluctuation in flow properties at any section inside a multi-stage compressor that can be used in the preliminary stage of the engine design where only limited information is available on the compressor geometry. Following a literature review of different methods for simulating surge, an analytical approach was chosen. The method developed in this project is built upon an analytical lumped-parameter model proposed over three decades ago to simulate surge in low-speed (incompressible flow) axial compressors. This model treated the compressor as a semi-actuator disk across which the instantaneous pressure rise is obtained from a steady-state pressure rise characteristic curve minus the effect of fluid inertia in the compressor. The modelled compressor is coupled with 1-D models for downstream components, namely a plenum representing the combustor and a throttle valve replacing the turbine. Through the current work, this model is enhanced by applying the same steady pressure rise and fluid inertia effect to subsections of the compressor to easily predict pressure oscillations inside the compressor once the surge prediction for the entire compressor has been obtained. This model is also shown analytically to be also applicable to non-axial compressors. The incompressible model was applied on three different compressor geometries with available test and/or CFD surge data, namely a three-stage low-speed (incompressible) axial compressor, a low-speed axial-centrifugal compressor and an industrial high-speed two-stage (highly compressible) non-axial compressor. The results show that this simple model which is easy and fast to set up and run performs quite well in predicting the surge cycle shape, fluctuation amplitude and frequency for the overall compressor and for a location inside the compressor (at least on the low-speed axial compressor) in spite of uncertainty in speedline shape estimation and the incompressibility assumption

Religiosity and Cyberspace: a Meta-Analysis on the Studies of Religion and Cyberspace

This paper focuses on the impact of cyberspace on religiosity in Iran through reviewing previous studies. The situation of religion in the age of the internet has always been a major matter of concern for Iranian scholars and policy makers. Accordingly, there have been many researchers who have addressed and approached this problem but there has been no comprehensive understanding of the impact of the internet on religiosity, as no comparative study has been conducted to date. This paper applies meta-analysis as the method for reviewing previous attempts while trying to gather all the data by classifying problems, methods, theoretical approaches and more importantly their results. The outcome of this study is to indicate the impact of cyberspace on religiosity and religious identity, apart from classifying and clarifying the status of religiosity in Iran. Having a stronger religious identity causes less online misbehaviors like searching and engaging in pornography. It also indicates using cyberspace for recreational purposes compared to using it for communication or gathering information etc. makes the users more likely to have a weaker religious identity