An attack-resistant trust management scheme (ART) is proposed for VANETs that is able to detect and cope with malicious attacks and also evaluate the trustworthiness of both data and mobile nodes in VANETs. Specially, data trust is evaluated based on the data sensed and collected from multiple vehicles. Node trust is assessed in two dimensions, functional trust recommendation trust. The effecti...

Climate change brings severe impact to frontier Asia in the shape of its significant negative effect on workability and livability. Drawing upper echelon theory (UET), this study aims investigate mechanism conditional factors a sustainable leadership–environmental performance relationship. Employing cluster sampling, has collected data from small medium enterprises Asian countries—Pakistan, Ind...

this research investigates the vegetation of 4600 ha of polour semi-steppe rangelands in relation to edaphic and physiographical parameters in mazandaran province. for this purpose, 23 land units were selected from overlaying slope, aspect and elevation maps using geographic information system (gis). within each unit, 3 parallel transects with 100 m length, each containing 10 quadrates (accordi...

the major purpose of this study was to identify factors influencing the design of agriculturaladvisory service network in the west azerbaijan province of iran. the population of thisresearch consisted of consultants who provided services to farmers. by using a cochranformula, 306 respondents were selected. the results showed that consultants faced manyobstacles such as lack of necessary facilit...