A significant challenge that faces any teacher of introductory programming is the diversity of the class. At one extreme there will be students who have never programmed before, while at the other there will be students who have many years experience of programming. Handling this diversity is difficult. The temptation for the instructor is often to focus on the novice group and to assume that t...

OBJECTIVE To describe empirically the risky sexual behavior of an at-risk sample of adolescent girls, to assess psychosocial correlates of risky behavior, and to examine the utility of applying a risk and protective model to predicting teens' risky sexual behavior. METHOD Participants included 158 African American girls, ages 12 to 19, who were receiving medical care in an adolescent primary ...

Traditional Data Envelopment Analysis (DEA) models evaluate the efficiency of decision making units (DMUs) with common crisp input and output data. However, the data in real applications are often imprecise or ambiguous. This paper transforms fuzzy fractional DEA model constructed using fuzzy arithmetic, into the conventional crisp model. This transformation is performed considering the goal pr...

In this study, the authors examined the relationships among parenting factors (closeness, communication, support, and monitoring), peer deviance, and adolescent risky sexual behavior in a sample of rural African American youth (N=689). Descriptive analyses revealed that risky sexual activity in this sample was common, with a little over half of the sample endorsing participation in one or more ...

Due to cost-push inflation, the trade-off between safety costs and risk prevention (safety) has become difficult worldwide. Most companies experience difficulty of cost overruns allocate resource inefficiently. In this paper, a forward model maximizing input is formulated. Because there wide range variation coefficient parameters, it hard determine coefficients in model, make decisions on which...

Software systems bridge the gap between information processing needs and available computer hardware. As system requirements grow in complexity and hardware evolves, the gap does not necessarily widen, but it certainly changes. Although today’s applications require concurrency and today’s hardware provides concurrency, programming languages remain predominantly sequential. Concurrent programmin...

RSA-FDH and many other schemes secure in the RandomOracle Model (ROM) require a hash function with output size larger than standard sizes. We show that the random-oracle instantiations proposed in the literature for such cases are weaker than a random oracle, including the proposals by Bellare and Rogaway from 1993 and 1996, and the ones implicit in IEEE P1363 and PKCS standards: for instance, ...

I ran Insurance Company intends to raise its financial credit and render enhanced services to the insured and the public. The need to meet financial obligations arising from the claims requires determination of the optimum deposited claims reserve with banks. Therefore, the present research study aimed at finding the loss ratio (incurred losses to premiu...