نتایج جستجو برای: with different backgrounds

تعداد نتایج: 9671706  

In their study, Brenna and Spandonaro analyzed the mobility into Italian regions. In particular, it analyzes the situation of 5 regions, with very different backgrounds. With this paper, we try to better define the meaning of health mobility and to find its underlying causes. Furthermore, we propose a strategy that could help in controlling mobility flows that currently are the source of health...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه محقق اردبیلی - دانشکده علوم کشاورزی 1391

abstract: the potato tuberworm, phthorimaea operculella (zeller), is an important insect pest of potato (solanum tuberosum l.) in the storage and field in most parts of the world especially in tropical and subtropical regions due to its close relationship with the host, high reproductive potential and high economic losses. information on host preference, life table parameters and digestive en...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده علوم 1388

heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...

دانش کاظمی, علیرضا, داوری, عبدالرحیم, عطایی عطاآبادی, ابراهیم, میرسیفی نژاد نائینی, راحله,

Introduction: Optical properties of different resin composites may affect the correspondence between tooth color and its structure. Therefore, this study aimed to evaluate and compare the optical properties of 8 commercial composite resin materials with 1 and 2 mm thicknesses. Methods: 32 resin composite disks with 10 mm diameter and 1 and 2 mm thicknesses were prepared. Color parameters of th...

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