Aging confronts humans with specific existential issues. They frequently cause suffering in old age. Not dealing with or insufficiently dealing with these existential themes may result in crisis, psychological disorders, and illness. By integrating existential themes of aging into the understanding of one's own life, the process of aging contributes to personal maturity.

Database and Artiicial Intelligence applications are brieey discussed and it is argued that they need deduction methods that are not only refutation complete but also complete for nite satissability. A novel deduction method is introduced for such applications. Instead of relying on Skolemization, as most refutation methods do, the proposed method processes existential quantiiers in a special m...

Incomplete Information research is quite mature when it comes to so called existential nulls, where an existential null is a value stored in the database, representing an unknown object. For some reason universal nulls, that is, values representing all possible objects, have received almost no attention. We remedy the situation in this paper, by showing that a suitable finite representation mec...

Existential anxiety is hypothesized to be a core human issue in a great deal of theoretical and philosophical writing. Fostering the empirical understanding of the expression of these concerns may be a valuable addition to the psychological literature on exposure to trauma. The purpose of this study was to test theoretical predictions about the association between different facets of existentia...

We prove an existential version of Gaifman’s locality theorem and show how it can be applied algorithmically to evaluate existential first-order sentences in finite structures.

The purpose of this paper is to draw attention to existential fixed-point logic. Among other things, we show that: (1) If a structure A satisfies an existential fixed-point formula φ, then A has a finite subset F such that every structure B with A |F = B |F satisfies φ. (2) Using existential fixed-point logic instead of first-order logic removes the expressivity hypothesis in Cook's completenes...

This paper reports the characteristics of suicides which occurred during the existential and the non-existential wars in Israel. It provides a first approximation of whether the suicide patterns in each war are consistent with the findings of Morselli and Durkheim, and whether their theoretical interpretations can serve as a preliminary guideline to explaining the Israeli case, which is charact...

The number of variables used by a first-order query is a fundamental measure which has been studied in numerous contexts, and which is known to be highly relevant to the task of query evaluation. In this article, we study this measure in the context of existential positive queries. Building on previous work, we present a combinatorial quantity defined on existential positive queries; we show th...

Existential constructions play an important role in the development of Generative Grammar. Their special natures urge linguists to pay painstaking effort to give them a unified account. At first we have a brief review of the relevant study of these constructions and examine their strong points and weakness. On the basis of their study, we assume that in existential constructions of SVO language...

Existential theory is derived from the existential philosophy movement of the nineteenth century. There were several individuals instrumental in the development of existential therapy including Bugental, Frankl, May, and Yalom. It is not a concise theory but is a loose collection of theories centering on the meaning or purpose of life. However it is applicable to counseling because of its focus...