Resource limitation in zero time may cause to some profitable projects not to be selected in project selection problem, thus simultaneous project portfolio selection and scheduling problem has received significant attention. In this study, budget, investment costs and earnings are considered to be stochastic. The objectives are maximizing net present values of selected projects and minimizing v...

â  sayyed mohammad bagher hosseini * â  javad gholamalizade ** â  â  abstract â  â  the fourth and fifth centuries are known as the golden age of arab poetry in khorasan, in such a way that khorasan became a place for great poets and scholars from all over the islamic world. one of the poetic genres culminated in this period is usually created when human is faced with an affair that irritates h...

abstract aim and background: the aim of the present study was to investigate the prevalence of adhd symptoms and its association with sluggish cognitive tempo (sct) among freshmen of ferdowsi university of mashhad. methods and materials: the statistical population of this descriptive cross-sectional study, was all freshmen (3272 students) of ferdowsi university of mashhad by census method compl...

goal: the goal of this study was a comparion of evaluating iranian state university websites with webqem and wia .method: method of this research was a combination of descriptive and delphy servey. the statistical community was hundred websites of iranian state universities. data collection tools were checklists. descriptive statistics (mean, standard deviation) and analysis statistics (paired-...

abstract in 2008, in a field survey on mites associated with poplar trees in razavi khorasan province (ne.iran), specimens of an eriophyid were collected. the specimens were sent to dr xia-yue hong for identification. as result, the eriophyid aculus dimidiatus (hall) is recorded from iran for the first time. the eriophyid reported here was found vagrant on under surface of leaves of eastern cot...

Iris is an important ornamental and medicinal plant, grown commercially for floriculture domestically aesthetic value. Ornithogalum mosaic virus (OrMV, Potyviridae) has a broad host range infecting plants of the genera Diuris, Gladiolus, (Gao et al., 2018). During April 2020, symptoms mosaics chlorotic spots on leaves were observed in versicolor growing Mashhad city, northeast Iran (Fig. 1). Yo...

this paper is an attempt to study information seeking behaviors of graduate students in birjand and ferdowsi universities based on kuhlthau model of information search process. the population consists of graduate students in birjand and ferdowsi universities whose proposals were approved by graduate study councils of mentioned universities up to the end of first semester of 2008-2009 academic y...

it is known that legumes give benefits to the soil such as improved nutrient availability, improved structure, reduced pest and disease incidence, and hormonal effects (wani et al., 1995). the major benefit of legume crops comes from biologically nitrogen fixation, deriving from the symbiosis involving leguminous plants and rhizobium bacteria (vance, 1998). based on this purpose, a field study ...

purpose: the purpose of this paper is to identify the main elements of collection and collection management policy of information center & central library of ferdowsi university of mashhad. methodology: this study was an applied research study done through a survey analysis. the population of this study comprised of a representative group of managers, experts, and librarians. the data collectio...