Parallel programs are difficult to understand and the research community is determined to provide tools to help improve that understanding. As a result, there is intense interest in using visualization to understand the execution of parallel programs. But visualization is like the surgeon’s knife: properly used it will quickly cut to the essentials; improper use brings colorful but disastrous r...

The draw-a-man (DAM) and draw-a-woman (DAW) tests were given to 307 schoolchildren in Petaling Jaya, Malaysia. The children were ethnically Malay, Chinese, or Indian (Tamil), and all came from lower socioeconomic groups. The standard scores of the Chinese children averaged 118 in the DAM and 112 in the DAW tests. These scores were significantly better than the American standards. Malay children...

This paper argues that Teacher Education could play a significant role in promoting social change. This however is only possible if teacher educators go beyond the dominant behaviourist and constructivist views that have constrained Teacher Education in Kenya and perhaps other countries in Eastern and Southern Africa and also embrace alternative approaches, particularly the sociocultural view o...

This paper presents a new algorithm to implement causal ordering. Causal ordering was first proposed in the ISIS system developed at Cornell University. The interest of causal ordering in a distr ibuted system is that it is cheaper to realize than total ordering. The implementation of causal ordering proposed in this paper uses logical clocks of Mat te rn-Fidge (which define a partial order bet...

Knowledge discovery is one of the humans' most creative activities. As is often pointed out, humans often draw figures in the process of reasoning and problem solving. Diagrammatic information from a figure gives us numerical and relational data for reasoning, and it also gives us cues for controlling reasoning. The author has developed four discovery systems in the domain of plane geometry. Th...

Charles Bean has written an informative discussion of unemployment that brings to a larger audience some parts of his comprehensive discussion of European unemployment (Bean, 1994). His current paper also discusses the role that policy might take to reduce unemployment. I will put policy issues aside initially to concentrate on the causes of unemployment. I begin by stating and commenting on fo...

since co2 pneumoperitoneum is the dominant method of laparoscopic exposure due to facility and good view, its physiologic effects are most relevant to the surgeons. co2 pneumoperitoneum may affects hemodynamics by increased intra-abdominal pressure (iap) and the physiologic effects of absorbed co2. the adverse effects of both mechanisms relate directly to the duration of the pneumoperitoneum an...

Sudden deaths of finishing pigs in modern pig herds cause economic losses and therefore draw constant attention worldwide. In the case peracute mortality associated with gastrointestinal bleeding, usually die during a short period without clinical manifestations. Necropsy can detect bleeding into various parts digestive system. Determining exact aetiology sudden death be difficult many cases. D...