نتایج جستجو برای: mobility duration
تعداد نتایج: 296964 فیلتر نتایج به سال:
<b><i>Background:</i></b> Office workers near retirement tend to be sedentary and can prone mobility limitations diseases. We examined the dose effects of exergaming volume duration detraining on motor cognitive function in office at late midlife reduce sedentariness limitations. <b><i>Methods:</i></b> In an assessor-blinded randomized trial, 160 ...
It is well known that age influences organism mobility. This was demonstrated in vertebrates (such as mammals, and birds) but has been less studied in invertebrates with the exception of Drosophila and the nematode Caennorhabditis elegans. Here we studied the influence of age on the mobility of the orb-weaving spider Zygiella x-notata during web construction. The orb-web is a good model because...
Traditionally, ad hoc networks have been viewed as a connected graph over which end-to-end routing paths had to be established. Mobility was considered a necessary evil that invalidates paths and needs to be overcome in an intelligent way to allow for seamless communication between nodes. However, it has recently been recognized that mobility can be turned into a useful ally, by making nodes ca...
The effects of fluorine ion bombardment on the channel transport properties of AlGaN /GaN heterostructures have been investigated. Ion bombardment of the heterostructure was carried out within a CF4 plasma in a reactive ion etching system at various self-bias voltages. Hall mobility and sheet electron concentration for the two-dimensional electron gas showed strong dependence on bombardment dur...
This paper presents a 2-D model to calculate the electric current densities and the biopotential differences generated due to a breast cancerous cell during the hyperpolarization of the G1/synthesis (G1/S) transition. The proposed model is based on semiconductor diffusion-drift analysis, and aims to understand the biophysics associated with growing breast cancerous cells. The effect of the dura...
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....
Introduction: The NASA Langley Research Center (LaRC) Mars Tumbleweed rover is a concept for a lightweight, spherical, deployable structure, with a configuration that maximizes drag to capture the Martian wind for mobility and extended mission duration. The wind-blown mobility of a Tumbleweed rover makes it an ideal platform for conducting distributed geophysical and meteorological surveys of b...
the study of social mobility is part of urban studies. iranian sociological investigations do not reflect much about the problem of women’s social mobility; while understanding the dynamics of women’s mobility and its extent can help in planning and policy-making within the framework of social studies. the present research probes into women’s inter-generation social mobility in an iranian urban...
Job duration patterns are examined for evidence of health insurance-related job lock among chronically ill workers or workers whose family member is chronically ill. Using Cox proportional hazard models to indicate the effect of health insurance and health status on workers' job duration we allow for more general insurance effects than that shown in the existing literature. Data for workers in ...
Using data from the National Longitudinal Survey of Youth (NLSY), we re-examine the effect of formal on-the-job training on mobility patterns of young American workers. By employing parametric duration models, we evaluate the economic impact of training on productive time with an employer. Confirming previous studies, we find a positive and statistically significant impact of formal on-the-job ...
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