In order to study relative PCF-definability of boolean functions, we associate a hypergraph Hf to any boolean function f (following [2, 4]). We introduce the notion of timed hypergraph morphism and show that it is: – Sound: if there exists a timed morphism from Hf to Hg then f is PCF-definable relatively to g. – Complete for subsequential functions: if f is PCF-definable relatively to g, and g ...

let c be a field of subsets of a set i. also, let     1 i i be a non-decreasing positivesequence of real numbers such that 1, 1 0 1   i  and    11 i i . in this paper we prove thatbv of all the games of -bounded variation on c is a non-separable and norm dual banach space of thespace of simple games on c . we use this fact to establish the existence of a linear mapping t from...

a simple new closed form of the green function for axisymmetric magnetostatic problemsis found analytically in cylindrical coordinates. the result is verified by applying several examples.

the aim of this study was to investigate the relationship between family function and marital satisfaction with marital disaffection of married couples (teachers)  in behshahr.   the research method is descriptive and co-relational. the study sample group consisted of 250 married teachers in 2016, of which 150 of them were selected according to morgan random sampling. the research instruments w...

introduction: metabolic syndrome (mets) and impaired lung functions have been associated with an increased risk for coronary heart disease. the aim of this study was to investigate the pulmonary functions in patients with mets. methods: this cross-sectional study included 200 subjects with mets in the study group and 100 subjects without mets in the control group. participants were examined at ...

although there exist advanced models which predict beach profile for natural beaches, the behavior of the beaches in front of seawalls still suffers from the lack of appropriate theoretical models and sufficient measured data. in this paper, following the results obtained from the measurements, a beach profile evolution model is developed, using the measured probability distribution of the near...

background: sickle-cell anemia is characterized by defective hemoglobin synthesis with production of sickle hemoglobin. sickle red blood cells become deformed and rigid with difficulty to pass through narrow capillaries and frequent clotting and thrombosis leading to repetitive vascular occlusions and progressive organ damage. we conducted this work to study some adrenal functions using acth st...

introduction: many studies have revealed that drug addicted individuals exhibit impaired performance on executive function tests but a few studies have been conducted on executive functions of drug addicts in iran. to contribute to this understanding, the present study was designed to assess some domains related to executive functions including cognitive flexibility, attention and speed of ment...

The set of integer solutions (x 1 , x 2 , x 3) to the equation (1.1) x 2 1 + x 2 2 + x 2 3 = n has been much studied. However it appears that the spatial distribution of these solutions at small and critical scales as n → ∞ have not been addressed. The main results announced below give strong evidence to the thesis that the solutions behave randomly. This is in sharp contrast to what happens wi...

Metadata plays a vital role in both the development and use of statistical information. The production of information requires that data and metadata be viewed as as a totality rather than individually; thus, metadata management must be seen as an integral part of statistics production. Moreover, since metadata provides the basis for human understanding of data, the cognitive aspects of metadat...