نتایج جستجو برای: human mobility
تعداد نتایج: 1724681 فیلتر نتایج به سال:
Objective: This study aimed to investigate the role of perceived social support in predicting psychological disorders in people with mobility impairment and its comparison with normal subjects. Materials & Methods: In This causal comparative study, 49 subjects were chosen among all people with mobility impairment by random sampling and 50 subjects among ordinary people by available sampling....
The availability of massive digital traces of human whereabouts has offered a series of novel insights on the quantitative patterns characterizing human mobility. In particular, numerous recent studies have lead to an unexpected consensus: the considerable variability in the characteristic travelled distance of individuals coexists with a high degree of predictability of their future locations....
Anthropologists accept that mobility is a critical dimension of human culture, one that links economy, technology, and social relations. Less often acknowledged is that mobility depends on complex and dynamic interactions between multiple levels of our biological organization, including anatomy, physiology, neurobiology, and genetics. Here, we describe a novel experimental approach to examining...
abstract different factors such as the quality of ova and sperm are involved in propagation process. mobility percentage, ph, mobility duration, compaction and osmolarity of sperm which affect the quality of sperm were tested in this research. this study was carried out in april 2011 in shahid ansari bony fishes propagation and rearing center. according to the results, mean and standard deviati...
The understanding of human mobility and the development of qualitative models as well as quantitative theories for it is of key importance to the research of human infectious disease dynamics on large geographical scales.In our globalized world, mobility and traffic have reached a complexity and volume of unprecedented degree. Long range human mobility is now responsible for the rapid geographi...
The following paper draws inspiration from the four national state‐of‐the‐art papers, prepared as part of the ongoing research programme ‘African Perspectives on Human Mobility’. This programme aims to explore alternative conceptions of human mobility based on empirical research in Nigeria, Ghana, Morocco and the Democratic Republic of Congo. The three year programme, co‐ordinated by the Intern...
Mobility is a pivotal instrument for human survival. Mobility, defined here, as movement of people, things, and ideas, is a central concern to the understanding of human societies across the globe. The concept includes different geographic and temporal scales, from individuals’ random movements to intercontinental migrations. Most patterns in the archaeological record one way or another result ...
ترانسفکت کردن سلول های استرومایی مغز استخوان با وکتور حامل ژن فاکتور نوروتروفیک مشتق از رده ی سلولی گلیال(gdnf) و ارزیابی بیان آن در محیط in vitro مقدمه : فاکتور نوروتروفیک مشتق از رده ی سلولی گلیال (gdnf) از مهم ترین پروتئین ها در رشد و ترمیم سیستم عصبی است. هر گونه نقص در تولید و ترشح این پروتئین موجب اختلالات مختلفی در بازسازی سلول ها در بیماری های مخرب سیتم عصبی می شود.از گزینه های درمانی ...
Policy reform can remove obstacles to intergenerational social mobility and thereby promote equality of opportunities across individuals. Such reform will also enhance economic growth by allocating human resources to their best use. This chapter assesses recent crosscountry patterns in intergenerational social mobility and examines the role that public policies play in affecting mobility. Inter...
Performance evaluation of protocols and mechanisms in wireless networks require a good representation of client mobility. The number of mobility models has been developed, to emulate the changes of location in time of mobile wireless devices in communication networks, such as e.g. mobile phones, tablets, netbooks, palmtops. Mobility models are used to verify the protocols and algorithms develop...
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