in new organizational world, managenemt is the most effective factor; and its proper form is in collaboration with leadership. one of the leadership's theories-which is the most effective-is charismatic leadership theory, though hasn't gain proper attention. generally, charismatic leadership means creating a relationship which involves affecting and being affected without involvement ...

Fistula from esophagojejunostomy is still one of the most feared complications after total gastrectomy. Despite the development of new surgical devices and techniques, it remains a major concern with an incidence around 5%10. The use of endoscopic stents has brought the possibility of another form of fistula treatment3. However, this technique hasn ́t yet been fully incorporated into clinical pr...

Technologies are evolving at an astounding rate. Due to this, platforms and services provided over the past few years have become outdated in the current world. The very evolution of the internet and web platform has been extremely fast paced and we are currently in the web 2.0 iteration. One of the primary contenders for the next iteration of the web platform is the semantic web technology (We...

Mass tourism, which may lead to environmental problems, cultural and social degradation, distortion of economic benefits and disease, particularly in poorer countries, provides financial reasons for preserving cultural, historical and natural resources or traditions, which otherwise may be neglected. Vanuatu, is a less developed country (LDC), reliant on tourism for such benefits. Therefore, th...

Image segmentation is still a crucial problem in image processing. It hasn yet been solved very well. In this study, we propose a novel multi-level thresholding image segmentation method based on PSNR using artificial bee colony algorithm (ABCA). PSNR is considered as an objective function of ABCA. The multi-level thresholds (t*1, t*2 ,...., t*n-1, t*n) are those maximizing the PSNR. We compare...

It can be frustrating when you can?t catch some shut eye! And, you're not alone in your frustration ? sleep issues are very common. In fact, about 50 to 70 million Americans have reported having a hard time getting to sleep or staying asleep. These issues are critical to address because sleep plays an essential role in maintaining your health. Using medications to help you sleep may help, but a...

in this article, creative and lateral thinking is used to elaborate certain artwork, which can be seen from all sides, but maintain a unified meaning and value. the significance of this subject leads toward research with emphasis on horizontality and with the aim of protecting and publicizing this concept. this is done through decoding the principles and symbols of islamic arts in order to arri...