نتایج جستجو برای: migration

تعداد نتایج: 140506  

F Babaei Semiromi, H Bahmanpour, Z Bozorgmanesh,

Background & objectives: Polyethylene terephthalate (PET) containers have many applications in the food industry. Although there are numerous advantages for PET it also has some disadvantages, one of which is the migration of materials from the container into the material inside. In this study, the effect of two factors of storage time and temperature on the migration rate was evaluated and mod...

Biogeography-Based Optimization (BBO) has recently gained interest of researchers due to its simplicity in implementation, efficiency and existence of very few parameters. The BBO algorithm is a new type of optimization technique based on biogeography concept. This population-based algorithm uses the idea of the migration strategy of animals or other species for solving optimization problems. t...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1387

چکیده ندارد.

Introduction:Elite and efficient human resources play a vital role in the various national arenas and, therefore, their good management is crucial. Elite migration or brain drain among developing countries is of great importance, as these countries lose more capital in the process of international human capital flows, and their development is usually slowed by this phenomenon. The main purpose ...

Oils extracted from plants have been used since ancient times and in many cultures .frying oils are used in many countries all around the world including Iran. Therefore it is of great importance to ensure the safety of these food products which are usually delivered in polyethylene terephthalate (PET) bottles. This study has investigated the effect of storage time and temperature on the migrat...

Objective(s): Vascular smooth muscle cells (VSMCs) play a key role in the pathogenesis of diabetic vascular disease. Our current study sought to explore the effects of tanshinone IIA on the proliferation and migration of VSMCs induced by advanced glycation end products (AGEs). Materials and Methods: In this study, we examined the effects of tanshinone IIA by cell proliferation assay and cell mi...

Journal: :مطالعات و تحقیقات اجتماعی ایران 0
حسین محمودیان دانشیار گروه جمعیت شناسی، دانشکدة علوم اجتماعی دانشگاه تهران سعید مقدس دانشجوی کارشناسی ارشد جمعیت شناسی، دانشکدة علوم اجتماعی دانشگاه تهران

abstract:migration is one of the main factors in regional development and social and demography policymakers pay attention to it. this phenomenon has different functions. the amount of satisfaction on dissatisfaction from migration process can be a sign of positive or negative function for migrants. the goal of this research is to survey the relation between social capital and satisfaction from...

Journal: :international journal of hematology-oncology and stem cell research 0
amir hossein norooznezhad medical biology research center, kermanshah university of medical sciences, kermanshah, iran maryam keshavarz medical biology research center, kermanshah university of medical sciences, kermanshah, iran fatemeh norooznezhad medical biology research center, kermanshah university of medical sciences, kermanshah, iran kamran mansouri medical biology research center, kermanshah university of medical sciences, kermanshah, iran

background : angiogenesis, the formation of new blood vessels from preexisting ones, is among the most important physiological and pathological processes that occur in the body. under pathological conditions such as tumor growth, psoriasis, corneal neovascularization and rheumatoid arthritis, angiogenesis is substantial for the development of the disease. zataria multiflora is a member of the l...

Journal: :iranian journal of basic medical sciences 0
sajad sahab negah histology and embryology group, basic science department, faculty of veterinary medicine, shiraz university, shiraz, iran shefa neuroscience research center, khatam alanbia hospital, tehran, iran hadi aligholi department of neuroscience, school of advanced medical sciences and technologies, shiraz university of medical sciences, shiraz, iran zabihollah khaksar histology and embryology group, basic science department, faculty of veterinary medicine, shiraz university, shiraz, iran hadi kazemi pediatric department, medical faculty, shahed university, tehran, iran sayed mostafa modarres mousavi shefa neuroscience research center, khatam alanbia hospital, tehran, iran

objective(s): in order to grow cells in a three-dimensional (3d) microenvironment, self-assembling peptides, such as puramatrix, have emerged with potential to mimic the extracellular matrix. the aim of the present study was to investigate the influence of the self-assembling peptide on the morphology, survival, proliferation rate, migration potential, and differentiation of human meningioma st...

Ali Reza Rafati, Davood Mehrabani, Mahdokht Mahmoodi, Seyedeh-Sara Hashemi,

BACKGROUND Wound healing is a complex and dynamic process following damage in tissue structures. Due to extensive skin damage caused by burn injuries, this study determined the role of human adult peripheral and umbilical cord blood platelet-rich plasma on proliferation and migration in human skin fibroblasts. METHODS Platelet-rich plasma (5, 10, 15, 20 and 50% PRP) from human umbilica...

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