We present a declarative formalization of STRIPS [1] as a reasoning strategy in the situation calculus [10]. The idea is to use logic not only to represent planning problems, but also to describe the mental situations, mental actions and reasoning strategy STRIPS uses to solve those problems.

In this paper we study the diierences between two logic theories for temporal reasoning, the Situation Calculus and the Event Calculus, and the implications of these diierences. We construct a new formalism that combines the advantages of both Situation and Event Calculus and avoids the problems of either. The new formalism is useful for general temporal reasoning in worlds with discrete and co...

byzantine iconography, due to the theoretical content ruling on it, has provided a close and fundamental link with christian theology and the resolutions ruling on it, especially the most fundamental ones, namely incarnation of word in the form of picture. however, this artistic form has been able to show a good reflection of many aspects of the social life and even the popular beliefs of its s...

An acute mortality caused by an uncertain agent occurred in wild golden grey mullet (Liza auratus) population in the Iranian side of the Caspian Sea in February, 2004. Clinical signs of the moribund fish were erratic behavior such as spiral swimming, belly-up at rest and over inflation of swim bladder. Histological examination of brain of dead fish revealed hyperaemia, degeneration and necrosis...

An acute mortality caused by an uncertain agent occurred in wild golden grey mullet (Liza auratus) population in the Iranian side of the Caspian Sea in February, 2004. Clinical signs of the moribund fish were erratic behavior such as spiral swimming, belly-up at rest and over inflation of swim bladder. Histological examination of brain of dead fish revealed hyperaemia, degeneration and necrosis...

BACKGROUND AND AIMS Various methods are used to measure the size and form of the teeth, including the golden pro-portion, and the width-to-length ratio of central teeth, referred to as the golden standard. The aim of this study was to eval-uate the occurrence of golden standard values and golden proportion in the anterior teeth. MATERIALS AND METHODS Photographs of 100 dentistry students (50 ...

Social anarchism sometimes referred to as socialist anarchism is generally considered tobe the branch of anarchism which sees individual freedom as being dependent upon mutual aid. Socialanarchist consideration generally emphasizes community and social equality. Society in the modernperiod is in a critical situation of not only economy and social system, but also in the remarkableaspects of the...

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BACKGROUND Violence by young people is one of the most visible forms of violence and contributes greatly to the global burden of premature death, injury and disability. METHODS The Global School-based Student Health Survey (GSHS), State of Lara, Venezuela (GSHS-Lara) is a school-based surveillance system. It comprises a repeated, cross-sectional, self-administered survey drawn from a represen...