nowadays, air pollution is a global problem that has had significant growth by technology development, population growth andindustrial development. industrial development brought natural resources deterioration, more manufacturing products, and more environmental pollutants. if pollutant won’t be controlled, human-being and wildlife will face the critical risks. significant release and critical...

in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...

 Background and Aim: Readiness to face changes and transformation in health fields is one of the main factors in health organizations’ success. The main purpose of the present study was to determine the relation between culture and readiness to accept transformation in single-specialty hospitals. Materials and Methods: Readiness to face changes and transformation in health fields is on...

Introduction: Self-directed learning is one of the most practical competencies that makes a person independent in learning and paves lifelong learning. Due to the rapid growth of knowledge and technology in nursing, self-directed learning is more important. This study aimed to investigate the level of self-directed learning readiness in nursing students of Shahid Beheshti University of Medical ...

Regarding the monetary nature of operations in financial and service institutions, especially in banks,changing the behavior of customers is of major sensitivity and needs careful and timely planning by managers of such institutions. In the present competitive environment, banks are obliged to link their existence with customers, recognize their demands and needsand take measures so that they ...

this study aims to investigate value conflicts between mothers and their daughters among families and influential factors on this conflict in yazd city. this study adopted a survey method and a questionnaire was used that its validity through construct validity (factor analysis) and its reliability by cronbach alpha were measured. the population of this study consists of all yazdian families th...

In today's competitive environment, organizations are to survive inevitably to gain competitive advantage and in this regard, one of the issues that comes to assist organizational experts is information technology (IT). Use of any system to improve the situation needs to change some preparation previous and no doubt, when employees are exposed to fluctuations they can adapt themselves with thei...

investigation the archetype of mother can help the reader to understand poes works, especially his fiction, better, if not fully. motivated by internal and external drives to get into the universe in its manifold form poe was impelled to art and, from various modes of art, to symbolism. how much was poe successful to produce works of art has been a matter of dispute among critics. however, ther...