نتایج جستجو برای: external work
تعداد نتایج: 1113562 فیلتر نتایج به سال:
The storage and recovery of elastic strain energy in muscles and tendons increases the economy of locomotion in running vertebrates. In this investigation, we compared the negative and positive external work produced at individual limb joints of running dogs to evaluate which muscle-tendon systems contribute to elastic storage and to determine the extent to which the external work of locomotion...
The slope of the stroke work (SW)-pulmonary capillary wedge pressure (PCWP) relation may be negative in congestive heart failure (CHF), implying decreased contractility based on the premise that PCWP is simply related to left ventricular (LV) end-diastolic volume. We hypothesized that the negative slope is explained by decreased transmural LV end-diastolic pressure (LVEDP), despite the increase...
It is proposed that attentional diculties are central to the experience of boredom. Events which disrupt attention during task performance may contribute to feelings of boredom with the task. Two sources of disruption are explored: external interruptions from the physical environment, and internal interruptions in the form of non-taskrelated thoughts about current concerns. Study 1 found that ...
Time-related accident risk in shift work may be attributed to internal factors, such as fatigue, level of performance, sleep propensity, and to some external factors, like shift system, physical and social environment. Six hundred and sixty-eight events in the metallurgical industry have been analysed in terms of time of day, time on task, consecutive day of the shift block, day of the week, an...
External work was utilized to measure differences between the unaffected and the affected limb in patients with unilateral peripheral arterial disease compared to healthy controls. Patients with unilateral peripheral arterial disease have shown deficits in peak joint powers during walking in the unaffected and affected legs. However, no research has detailed the amount of work that is being per...
some researches made in the field of agency problem issue, deal with the role of control systems regarding owners and managers. in this research the relationship between the two control mechanisms, namely the voluntary disclosure (external control mechanism) and outside directors (internal control mechanism), which are reductive of agency problems, has been studied. for this reason, a sample ...
in the modern era and through abstraction, art turns to a path in which the beginning and end of an artwork get closer together than in any other era in an attempt to make the minimum space between the subject and the object, or the work and viewer so that the work is created while receiving the minimum influence from the external world and maximum closeness to the very essence of abstraction a...
asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...
Motivation at work is a multiple phenomenon which can not be evaluated by a single variable, directly. Motivation at work is concerned with internal and external variables which determine, initiation, form, direction, intensity and duration of the work. Furthermore, personnel’s motivation for work originates from complexity of the individuals’ personalities, nature of the work and the cha...
With the rapid trend of the human resources strategy of the globalization, dispatched work becomes the result of flexible human resource using. Dispatched work as a newly risen service industry, belong to the short term and more flexibility work styles and make the firms cost down for the manpower requested. This study probes into the manpower coordinate with the agency workers needs the correl...
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