The development teams who are geographically spread, culturally mixed and mainly depend on information and communication technology (ICT) for communication is defined as a global virtual teams (GVTs). Despite the advancement of technologies, achieving the efficient performance of GVTs remains a challenge. The reviewed literature has highlighted the importance of training and development, organi...

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...

background and purpose: this study aimed to evaluate the relationship between organizational structure and organizational performance from the perspective of the staff of 115 emergency departments of mazandaran province, iran. materials and methods: in this study, data were collected from the emergency personnel of different hospitals of mazandaran province, iran in 2014. moreover, data on two ...

This study examines possible differences between the acoustic realization of the intersibilant contrast /s/~/ʃ/ in German and American English. A range of acoustic parameters (COG, standard deviation, skewness, kurtosis and Discrete Cosine Transformation coefficients) are calculated to characterize the spectra of the two sibilants. Significant differences are found between the male and female i...

We study connections between the problem of the existence of positive solutions for certain nonlinear equations and weighted norm inequalities. In particular, we obtain explicit criteria for the solvability of the Dirichlet problem −∆u = v u + w, u ≥ 0 on Ω, u = 0 on ∂Ω, on a regular domain Ω in Rn in the “superlinear case” q > 1. The coefficients v, w are arbitrary positive measurable function...