In this work, optimal control models subject to discrete and continuous uncertain descriptor systems are both investigated under Hurwicz criterion. At first, by employing dynamic programming method, a recurrence equation is obtained simplify the model, bang-bang problem settled according equation. Then, for an of optimality proposed testified with help uncertainty theory principle optimality, r...

The present study examines the validity of the Dutch Children's Communication Checklist (CCC) for children in kindergarten in a community sample, in order to assess the feasibility of using it as a screening instrument in the general population. Teachers completed the CCC for a representative sample of 1396 children at kindergarten level, taken from 53 primary schools in The Netherlands. The CC...

By far the greatest challenge related to undermining of internal sovereignty in the settled areas of NWFP and the rapidly fading writ of the government in the Federally Administered Tribal Areas (FATA). Although a military operation appears to have quelled the insurgency in some parts for now, these areas still need to be brought fully under state control. In addition, the largest ever displace...

This is not a survey paper . I am somewhat out of touch with this subject and therefore would not dare to attempt such a paper . I shall just discuss some of the problems my collaborators and I have worked on for more than 40 years . In particular, I shall concentrate on problems where there has been some progress recently apart from this I shall discuss a few of my favourite problems . Most of...

BACKGROUND/PURPOSE Health-related quality of life (HRQOL) is considered an important outcome indicator in substances abuse studies. However, psychometric properties of HRQOL measures are largely unknown in people who abuse heroin. Therefore, the present study aimed to examine data quality, scaling properties, reliability, and construct validity of the 36-Item Short Form healthy survey (SF-36) i...

This study examined dimensions of callous behaviors in early childhood and the role of these behaviors in the development of conduct problems, as well as responsiveness to a family-centered preventative intervention. Caregiver reports of callous behaviors were examined using exploratory and confirmatory factor analysis. Problem behavior was examined using within- and cross-informant reports of ...

The psychometric properties of the self-report version of the Antisocial Processes Screening Device (APSD; Frick & Hare, 2001), a rating scale developed to assess traits associated with the construct of psychopathy in youth, was tested in a sample of 91 non-referred young adolescents with an average age of 13.38 (SD = 1.75) at the initial assessment. The sample was recruited from a large commun...

Wholesale electricity market designs in practice do not provide the market participants with adequate mechanisms to hedge their financial risks. Demanders and suppliers will likely face even greater risks with the deepening penetration of variable renewable resources like wind and solar. This paper explores the design of a centralized cash-settled call option market to mitigate such risks. A ca...