High intensity discharge lighting sources share the compactness and beam controllability of incandescent sources, but are far more efficient and longer-lived. They share the efficiency and long life of fluorescent sources, but are compact and optically controllable, and are available in higher wattages. (Author/MLF)

Preschool and third grade children matched the orientation of stimuli tachistoscopically presented at times individually set to achieve about 75 percent correct performance. Preschoolers showed no superiority on left versus right while third graders showed significant top and right superiorities. Results are compared with those for adults on the…

Presents several studies that indicate the ways in which television has a harmful effect on children's perception of reality, including one study that indicated a children's program induced sensory overload in some of its viewers. (IRT)

Discusses a study which focused on adolescents' perception of their local environment by asking 200 15-year-old students to produce free recall maps of their own local areas. Study results indicate that the individual strives towards an adjustive structuring of his environment to self-perceived societal needs. For journal availability, see SO 505…

Various issues peculiar to the management of temporary systems are reviewed, then specific research findings on the three questions of task effectiveness, professional development, and utilization of human resources as related to management style are presented followed by a concluding strategy for the management of such systems. (Author)

School leaders play a pivotal role in keeping schools safe from chemical accidents. Readers of this brochure can help schools develop a chemical cleanout and prevention program and assemble a team of teachers, facilities staff, and administrators with technical expertise to assess chemical safety issues and set policy. Some important team roles…

This family activity book provides information for discovering and demonstrating the science of fire--how firefighters decide which fires to let burn and which to put out, how fires start and spread, and what to do when they flare up. Chapters include: (1) "A Game about Wildfire"; (2) "Create a Fire Safety Commercial"; (3)…

This paper describes a theoretical framework for the investigation of some specific types of visual learning difficulties commonly experienced by biology undergraduates. The framework was developed based on the findings of three simple qualitative pilot studies. A variety of neurological, cognitive and cultural mechanisms can influence what humans…

Due to isolation, lack of resources, and lack of training, rural health care providers lack the knowledge, skills, and attitude to work effectively with patients experiencing family violence. To address this need, a strategy-reported here-was designed and implemented in order to promote more effective intervention with patients experiencing family…

This study examined the longitudinal effect of a comprehensive school design and reform program on faculty perceptions of their contribution to students, collegial support, and autonomy in a secondary school. The study sought to establish whether these changes in faculty members' perceptions of their work environment covaried with the…

This research investigated three elementary preservice teachers' perceptions of elementary science teachers. Three questions guided this investigation. What images did elementary Masters of Arts in Teaching (M.A.T.) interns have of science teaching at the beginning and end of science methods courses? What changes, if any, did they make in their…

This study examines what children learn about animals. The mental models that children reveal through their talk when they are faced with several different types of representations are reviewed. These representations are provided by robotic models in a museum, preserved animals in a museum, and preserved animals borrowed from a museum and…

This paper provides an overview of the literature on sensory integration in young children. First it explains the importance of "sensory integration" in child development and normal functioning. It goes on to note signs of a sensory integration dysfunction (such as hyper-or hypo-sensitivity to touch, poor coordination, and poor behavioral…

Groups were formed in which all members were rated previously as performing at either high or low levels of interpersonal skills during a behavioral assessment procedure. Group members evaluated each other's interpersonal behavior and their group's cohesiveness after a two-hour leaderless session. Highly skilled groups were seen as more cohesive.…

The authors discuss what it means to be a boy growing up in our society. They examine ways of responding to boys more meaningfully and explore what they consider are better messages for boys; for example, boys should be taught that negotiating and discussing are as appropriate means of protecting their rights as is fighting. (EK)