introduction: water scarcity has become a global issue due to its direct relationship with food security. for this reason, the need for the long-term sustainable use of water necessitates the application of effective strategies. in this regard, strategic programs are utilized in water resource management and agricultural policies in order to increase self-sufficiency, to reduce the food gap, to...

this study deals with the visibility, influence rate of diffrent links in virtual universities websites. the current community research is consisted of websites of 21 non medical universities websites and 8 websites of iran medical universities. the websites have been retrieved by the use of searchin and goolge webometic tools and are downloaded on personal computers to analyze their links. the...

The article discusses appropriate technologies for software implementation of the Virtual Accelerator. The Virtual Accelerator is considered as a set of services and tools enabling transparent execution of computational software for modeling beam dynamics in accelerators on distributed computing resources. The main purpose of a virtual accelerator is to conduct computational experiments to simu...

background: in-service education is one of the best and major methods to provide, train and improve the performance of the staffs. this study aims to determine the strengths and weaknesses of the virtual trainings from the staffs' perspective of mashhad university of medical sciences. methods: this is a cross-sectional study conducted among staffs from different parts of the therapy depart...

The frozen natural orbital (FNO) approach, which has been successfully used in ground-state coupled-cluster calculations, is extended to open-shell ionized electronic states within equation-of-motion coupled-cluster (EOM-IP-CC) formalism. FNOs enable truncation of the virtual orbital space significantly reducing the computational cost with a negligible decline in accuracy. Implementation of the...

Virtual surgery simulation system is a typical application of virtual reality technology in the medical field. Firstly, in order to select a suitable way for real-time deformation and force feedback algorithm, after compared several classical numerical integration algorithm, we select the mid-point method as the deformation algorithm in this paper. The feedback force calculation is based on a s...

INTRODUCTION Cognitive neuropsychology focuses on the concepts of dissociation and double dissociation. The performance of number processing and calculation tasks by patients with acquired brain injury can be used to characterise the way in which the healthy cognitive system manipulates number symbols and quantities. The objective of this study is to determine the components of the numerical pr...

BACKGROUND The current methodology for sample size calculations for stepped-wedge cluster randomised trials (SW-CRTs) is based on the assumption of equal cluster sizes. However, as is often the case in cluster randomised trials (CRTs), the clusters in SW-CRTs are likely to vary in size, which in other designs of CRT leads to a reduction in power. The effect of an imbalance in cluster size on th...

There is a certain family of conformally invariant first order elliptic systems which include the Dirac operator as its first and simplest member. Their general definition is given and some of their basic properties are described. A special attention is paid to the Rarita-Schwinger operator, the second simplest operator in the row. Its basic properties are described in more details. In the last...