More and more attention has been paid to studying mechanical systems with second-order, and even higher-order non-holonomic constraints along with the develop- ment of science and technology. Some important results ha...
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More and more attention has been paid to studying mechanical systems with second-order, and even higher-order non-holonomic constraints along with the develop- ment of science and technology. Some important results have been obtained in
The problem of the optimal evasion from a pursuer employing proportional navigation guidance is considered. Thus, we consider the problem of maximizing the time-to-capture when the problem parameters, namely, the spee...
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The problem of the optimal evasion from a pursuer employing proportional navigation guidance is considered. Thus, we consider the problem of maximizing the time-to-capture when the problem parameters, namely, the speed ratio and the proportional navigation constant, are such that capturability of the evader is guaranteed.
We consider pursuit-evasion differential games in the plane in which the players, i.e., the pursuer and the evader, have simple motion and are pedestrians à la Isaacs. Two information patterns are considered, nam...
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We consider pursuit-evasion differential games in the plane in which the players, i.e., the pursuer and the evader, have simple motion and are pedestrians à la Isaacs. Two information patterns are considered, namely the classical feedback strategy and the stroboscopic pursuit strategy; loosely speaking, the latter incorporates the instantaneous control employed by the evader, which we assume to be known to the pursuer. Within this framework, the question of modelling a pursuit-evasion encounter is addressed, and we examine three well-known guidance schemes of the line-of-sight, collision course, and proportional navigation types.
The effectiveness of temperament-based anticipatory guidance for parents of infants aged 4-12 months was tested in two clinical situations. The model consisted of the Carey-McDevitt Infant Temperament Questionnaire pr...
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The effectiveness of temperament-based anticipatory guidance for parents of infants aged 4-12 months was tested in two clinical situations. The model consisted of the Carey-McDevitt Infant Temperament Questionnaire provided to parents at 4 months of infants age, a selection of written guidance tailored to the child''s temperament, and subdsequent questionnaire follow-up at 8 or 12 months of age. Comparison of the 4-month temperament questionnaire results to the follow-up measures indicated that the Carey ITQ had significant discriminant predictability: Infants with different temperament patterns at 4 months had different patterns of issue and problem occurrence during the time period covered. In addition, the anticipatory guidance program showed significant degrees of differential utility: Parents of infants with more reported problems, or who received more accurate anticipatory guidance, rated the guidance materials as generally more useful. The results indicate that further enhancements and testing of this temperament-based anticipatory guidance model, with more objective outcome measures, are warranted.
Research conducted by the guidance Institute for Talented Students is recounted. Current research focuses on developing assessment techniques that help explain differential achievement among gifted students.
Research conducted by the guidance Institute for Talented Students is recounted. Current research focuses on developing assessment techniques that help explain differential achievement among gifted students.
Astrocytes from either fetal or newborn rat brain adhered preferentially to surfaces coated with active laminin. Neurites from septal neurons did not show a preference for active over inactive laminin. However, when g...
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Astrocytes from either fetal or newborn rat brain adhered preferentially to surfaces coated with active laminin. Neurites from septal neurons did not show a preference for active over inactive laminin. However, when given a choice between laminin and an astrocytic surface, septal cells preferred to extend neurites over astroglial processes. Hence, laminin paths can guide astrocyte migration, which, in turn, can guide neurite elongation.
This paper reviews the available evidence on the alleged reproductive hazards of VDUs. It concludes that it is unlikely that any threat is posed by irradiation. Poor design of the work station and job-related stress m...
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This paper reviews the available evidence on the alleged reproductive hazards of VDUs. It concludes that it is unlikely that any threat is posed by irradiation. Poor design of the work station and job-related stress may pose a problem for some users. However, these reflect the way in which the VDU is used, and not the VDUper *** is recognized that anxiety about VDU use needs to be taken into account. Current guidelines on VDUs are introduced and briefly discussed.
The counselor and principal must work together to develop pro grams that address the needs of an ever-changing student popu lation. These writers review the College Board recommendations relating to guidance and couns...
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Here's how one school district organized to develop a program to meet the needs of certain at-risk students. One of the advantages of the program described is that it can be scaled to meet the resources available ...
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