منابع مشابه
Changes study of soil splash and stability of soil aggregates using polyvinyl acetate
Soil erosion, especially water erosion, threatens the installations, water resources and also human life. The first stage of water erosion is the splash erosion that it requires to control in the primary stages. On the other hand, the application of soil conditioners is one of the approaches that it provide the conservation possibility of soil surface against water erosion, especially erosion f...
متن کاملIndependence of Movement Preparation and Movement Initiation.
Initiating a movement in response to a visual stimulus takes significantly longer than might be expected on the basis of neural transmission delays, but it is unclear why. In a visually guided reaching task, we forced human participants to move at lower-than-normal reaction times to test whether normal reaction times are strictly necessary for accurate movement. We found that participants were,...
متن کاملVibrotactile movement initiation
We investigated how to use vibrotactile stimuli to initiate limb movements, in particular wrist rotations. We compared stimulation of the to be activated muscle with specification of the direction to which that particular part of the body had to be moved (i.e., the use of an intrinsic or an extrinsic reference frame for motor control). Fifteen participants took part in an experiment in which fi...
متن کاملevaluation of the suitability of fractal dimension of soil aggregates in assessing different soil management practices
a major concern of farmers is deterioration of the soil and water resources. soil management is the most direct way for mankind to interfere with natural processes that may either intensify or hinder soil degradation. fractal geometry has been widely used to describe heterogeneity in a wide range of natural processes, including physical systems of soil. in this study, the effects of different m...
متن کاملNeural control of voluntary movement initiation.
When humans respond to sensory stimulation, their reaction times tend to be long and variable relative to neural transduction and transmission times. The neural processes responsible for the duration and variability of reaction times are not understood. Single-cell recordings in a motor area of the cerebral cortex in behaving rhesus monkeys (Macaca mulatta) were used to evaluate two alternative...
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ژورنال
عنوان ژورنال: Canadian Journal of Soil Science
سال: 1973
ISSN: 0008-4271,1918-1841
DOI: 10.4141/cjss73-066