this research has been conducted to study the social barriers for women to have managerial positions. to this end the glass ceiling theory and role conflict hypothesis have been proposed. the statistical population has been 323 employed female staff of bank melli in tehran who were selected through systematic sampling based on cochran’s sampling formula. findings suggest that the main social ob...

The management of technology is acquiring a distinctive character and increasingly being recognized as an activity that complements other managerial functions in providing the necessary inputs to the decision-making process. The factors harmful in the implementation of technology management are known as barriers. The objective of this paper is to develop the relationships among the identified T...

Consider a rectangular art gallery divided into n rectangular rooms, such that any two rooms sharing a wall in common have a door connecting them. How many guards need to be stationed in the gallery so as to protect all of the rooms in our gallery? Notice that if a guard is stationed at a door, he will be able to guard two rooms. Our main aim in this paper is to show that Èn/2 ̆ guards are alway...

Tanzanian Higher learning institutions are faced with challenges of adopting e-learning in education. This study used experts in e-learning to examine barriers of adopting elearning and the best strategies to overcome them. Five major barriers were identified: poor infrastructure; financial constraints; inadequate support; lack of e-learning knowledge and teachers’ resistance to change. It is r...

AIMS This survey aims to describe the perception of barriers to and facilitators of research utilization by registered nurses in Sichuan province, China, and to explore the factors influencing the perceptions of the barriers to and facilitators of research utilization. METHODS A cross sectional survey design and a double cluster sampling method were adopted. A total of 590 registered nurses f...