objectives:the purpose of this study was to investigate of effects of sensory integration therapy (sit) on social interaction and sensory and motor performance in children with autism spectrum disorders (asd). methods:24 children with asd (22 boys, 2 girls), aged 6-12 years that matched on iq and gender, were randomly assigned to an experimental or control group. we requested participants of th...

Matching energy supply and demand is critical in the bioenergetic homeostasis of all cells. This is a special problem in neurons where high levels of energy expenditure may occur at sites remote from the cell body, given the remarkable length of axons and enormous variability of impulse activity over time. Positioning mitochondria at areas with high energy requirements is an essential solution ...

Warren, Young, and Lee (1986) found that treadmill runners control step length by regulating vertical impulse, which could be modulated by the optical time-to-contact variable tau. In contrast, Patla, Robinson, Samways, and Armstrong (1989) report a 40% contribution of horizontal impulse in overground running and a control strategy that depends on the timing of target cuing, undermining the tau...

1. Turbine Classification 1.1. Blade Profiles 1.2. Impulse and Reaction 2. Velocity Diagrams 2.1. General Relationships 2.2. Momentum Principle 2.2.1. Impulse Blading 2.2.2. Reaction Blading 2.3. Blade Efficiency 2.4. Energy Principle 2.4.1. Impulse Blading 2.4.2. Reaction Blading 2.5. Impulse Blading 2.6. Reaction Blading 2.7. Whirl Velocity 3. Stage Design 3.1 Number of Stages 3.1.1 Impulse B...

Reaction times for incremental and decremental stimuli were measured at five suprathreshold contrasts for six retinal illuminance levels where rods alone (0.002-0.2 Trolands), rods and cones (2-20 Trolands) or cones alone (200 Trolands) mediated detection. A 4-primary photostimulator allowed independent control of rod or cone excitations. This is the first report of reaction times to isolated r...

The impulse activity of muscle spindles isolated from the cat tenuissimus muscle was investigated under varying concentrations of external calcium (Ca(2+)). The outer capsule of the muscle spindle represents an effective diffusion barrier for Ca(2+) ions since activity changes were strong and rapid only if the capsule was partly removed from the sensory region of the receptor. The impulse activ...

Recordings from single peripheral nerve fibres made it possible to analyse the functional properties of tactile afferent units supplying the glabrous skin of the human hand and to assess directly the relation between impulse discharge and perceptive experiences. The 17,000 tactile units in this skin area of the human hand are of four different types: two fast adapting types, FA I and FA II (for...