The aim of this study is to examine the relationship between individual factors and workforce productivity in Guilan Gas Company. In order to examine the relationship between individual factors and productivity, the Pearson correlation test was used. Moreover, regression analysis used to examine the effects of individual factors on labor productivity. The results showed that among the individua...

Article history: Received 9 January 2008 Received in revised form 13 February 2008 Accepted 17 February 2008 Available online 29 February 2008 We improve a recently developed Replacement Method (RM) for the selection of an optimal set of molecular descriptors from a much greater pool of such regression variables. Our approach yields almost optimal results with a much smaller number of linear re...

BACKGROUND Applications of cost-effectiveness analysis do not typically incorporate effects on caregiver quality of life despite increasing evidence that these effects are measurable. METHODS Using a national sample of US adults, we conducted 2 cross-sectional surveys during December 2011 and January 2012. One version asked respondents to value their own experience as the family member of a p...

A quantitative structure-activity relationship analysis was employed to explore the relationship between the molecular structure of thiosemicarbazone analogues and the inhibition of the cysteine protease cruzain, a validated target for Chagas' disease treatment. A data set containing 53 thiosemicarbazone derivatives was used to produce a quantitative model for activity prediction of unknown com...

Ž . ABSTRACT: VRI Variable Resolution Invariants is a new approach to quantitative structure]activity relations that makes use of three-dimensional features of molecules at different levels of spatial resolution as well as levels of resolution in atomic properties. These descriptors are independent of any numbering of the atoms of a molecule. They are also independent of rigid translation and r...

Abstract The current study aims to investigate the relationship between Iran’s Targeted Subsidies Plan and the stock returns of listed companies on the Tehran Stock Exchange (TSE). Stock returns is obtained from the indices of three industries: pharmaceuticals, chemicals, and machinery and equipment. Moreover, the present research uses gold price and dollar price as control variables. The Targe...

Over hundred new a priori global/local molecular descriptors that encoded steric, topological, electronic, hydrogen bonding, compositional and hydrophobic properties were generated for 16 b-lactams, and two partial least squares regression models were constructed and cross-validated. These a priori models (Q > 0.80, R > 0.95, SEV < 0.50) are comparable with the previously obtained computed mode...

In this paper, we introduce a new approach to dialect recognition that relies on context-dependent (CD) phonetic differences between dialects as well as phonotactics. Given a speech utterance, we obtain the phone sequence using a CD-phone recognizer. We then identify the most likely dialect of these CDphones using SVM classifiers. Augmenting these phones with the output of these classifiers, we...

The theoretical understanding of online shopping behaviour has received much attention. Less focus has been given to the formation of the ethical issues that result from online shopper interactions with e-retailers. The vast majority of earlier research on this area is conceptual in nature and limited in scope by focusing on consumers’ privacy issues. Therefore, the purpose of this paper is to ...