Load carriage walking is frequently associated with low back pain. Mechanical stress is a potential cause of such pain, and a lack of coordination variability may produce mechanical stress. We tested the hypothesis that coordination variability would decrease during load carriage walking. We examined the trunk-thigh coordination variability in the sagittal and frontal planes and the thorax-pelv...

Previous studies claimed that task representation is carried out by the activated long-term memory portion of working memory (WM; Meiran and Kessler in J Exp Psychol Human Percept Perform 34:137-157, 2008). The present study provides a more direct support for this hypothesis. We used the reaction-time task-rule congruency effect (RT-TRCE) in a task-switching setup, and tested the effects of loa...

this paper aims at studying governance and distribution of autonomies in tehran city islamic council in the process of performing intra/inter-organizational functions. according to current theories on governance, there are three types of governance according to the kinde of involvement. authority involvement, interactive involvement and persuasion involvement, in tehran city islamic council in ...

In the present study, we examined the hypothesis that perceptual load is the primary factor that determines the efficiency of attentional selection. Participants performed a visual search task under conditions of high- and low-load. In line with the perceptual load hypothesis, presenting conditions of high- and low-load in separate blocks of trials resulted in processing of to-be-ignored stimul...

Although gastrointestinal involvement by metastatic malignant melanoma is common but primary gastrointestinal (GI) melanoma has been reported in rare cases. In this study we report two cases of primary gastrointestinal malignant melanoma that one of them is a known case of neurofibromatosis type 1(NF1). Both cases showed no evidence of any lesions in skin and eye. Malignant melanoma of GI tract...

Learning vocabulary is a central and time-consuming endeavour for language learner it has thus been suggested that the foreign classroom to supply explicit support students’ development. A major source of word focus exercises in teaching materials learning can be facilitated if they are designed way conducive learning. Few studies have so far sought establish what opportunities tasks provide. T...