Abstract The Cartesian thesis that some justifications are infallible faces a gradation puzzle. On the one hand, justification tolerates absolutely no possibility for error. other can vary in evidential force: e.g. two persons both be regarding their pains while with stronger pain is nevertheless more justified. However, if type of gradable strength, why it always absolute? This paper explores ...

OBJECTIVE Detecting and grading of diabetic retinopathy (DR) by means of digital retinal images sent via the Internet. RESEARCH DESIGN AND METHODS Four nonstereoscopic digital retinal images (45 degrees field each) of 126 eye fundus images from 70 diabetic patients were obtained with a nonmydriatic camera at two peripheral units. The images were sent via the Internet using a web-based system ...

Mining tailings as a raw material for preparing autoclaved bricks have attracted much attention. The tailings subjected to milling always have the characteristic of fine granularity. However, the proportion of the fine aggregates in autoclaved bricks was very low using the current gradation formula, which impeded the utilization of the tailings. In this work, a novel model of aggregate gradatio...

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.

Hospital gradation systems are used to examine the performance of hospitals to promote the efficient use of medical resources (1). Patient-perceived service quality may differ for differing grades of medical institutions under gradation system , which has been rarely reported. The aim of the present study was to explore the relation between the hospital gradation system and patient perceptions ...

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...

We construct soliton solutions for non-abelian loop Toda equations associated with general linear groups. Here we consider the untwisted case only and use the rational dressing method based upon appropriate block-matrix representation suggested by the initial Z-gradation.