Motivated by the growing importance of social media, this paper examines the relationship between new media, old media, and sales, in the context of the music industry. In particular, we study the interplay between blog buzz, radio play and music sales, at both the album and song levels of analysis. We employ the Panel Vector Auto-regression (PVAR) methodology, an extension of vector auto-regre...

Recently, we have developed a unified approach to QED in arbitrary linearly responding media in equilibrium—media that give rise to absorption [Phys. Rev. A 75, (2007) 053813]. In the present paper we show that, under appropriate conditions, the theory can be quite naturally generalized to amplifying media the effect of which is described within the framework of linear response theory. We discu...

“Media Me” is a media interactive art work which comments on the bidirectional relationship between people and the media through the use of a realtime video mosaic. The elements of the video mosaic could be personal, cultural, historical, and educational. This research can be considered as a combination of creativity, art, and digital entertainment as well as an extension of personal media broa...

Study of permeability of Fibrous Composites is important in several natural and industrial processes in mechanical engineering. In this study, a comprehensive mathematical model is presented for calculation of normal permeability of ordered elliptical fibrous media. An innovative scale-analysis technique is employed for determining the normal permeability of elliptical fibrous media. In this te...

Application of green walls still has not attracted interest among the contractors and people, and this can be due to poor growing performance of the plants on these systems. This study investigated the effect of four growing media types (30% cocopeat + 65% perlite + 5% vermicompost, 30% soil + 65% perlite + 5% vermicompost, 30% mushroom compost + 65% perlite + 5% vermicompost and regular soil a...

Owing to the ever-increasing prevalence of social media use, social commerce has become an important part of e-commerce. This study endeavors to explore the impact of social media quality and social support on the social commerce (SC) intention directly and through the variable of perceived risk. The sample included 214 social media users in Isfahan collected through simple random sampling meth...

In the present paper, the expressions for scalar and vector potentials in lossless isotropic chiral media are analyzed. Propagating eigenvalues of these potentials are then obtained. Furthermore by decomposition of sources and fields in a chiral medium, we introduce the auxiliary right-and left-handed potentials and find the associated fields. These potentials are used to solve the problem of a...

background and purpose: there are 3 specific reasons for education evaluation: to justify the existence and budget of the training department by showing how it contributes to the organization’s objectives and goals, to decide whether to continue or discontinue training programs, and to gain information on how to improve future training programs. we aimed to assess the effectiveness a media produ...