We relate the existence problem of universal objects to the properties of corresponding enriched categories (lifts or expansions). In particular, extending earlier results, we prove that for every regular set F of finite connected structures there exists a (countable) ω-categorical universal structure U for the class Forbh(F) (of all countable structures not containing any homomorphic image of ...

The aim of the present study was to evaluate the efficacy of targeted nursing for patients with systemic lupus erythematosus (SLE). A total of 114 patients clinically diagnosed with stable SLE were prospectively selected. The patients were randomly divided into the regular special nursing group, comprising 56 patients and the targeted nursing group (i.e., taylor made according to different path...

Graph data appears in a variety of application domains, and many uses of it, such as querying, matching, and transforming data, naturally result in incompletely specified graph data, i.e., graph patterns. While queries need to be posed against such data, techniques for querying patterns are generally lacking, and properties of such queries are not well understood. Our goal is to study the basic...

Minesweeper is a simple one−player computer game commonly found on machines with popular operating systems such as Linux or Microsoft Windows. The game consists of a 2 dimensional rectangular playing field (or board) where some known number of mines have been hidden. Initially, all of the squares on the board are "covered up" and no information is given to indicate the location of the mines. Th...

The authors examine how a firm’s financial leverage affects marketing outcomes and consequent firm value. They find that leverage has a dual effect: it reduces customer satisfaction and moderates the relationship between satisfaction and firm value. The burden of making regular interest payments to debt holders pressures managers to generate adequate cash flows. The authors theorize that this m...

Patient satisfaction and how it is measured is an important field of study in healthcare. Consequently, there have been many patient satisfaction studies. However, there is a lack of studies that focused on how male and female patients perceive, or weigh, their overall satisfaction. Determining the weights of these attributes by gender is an important outcome to determine overall patient satisf...

in this paper, we investigate various kinds of extensions of twin-good rings. moreover, we prove that every element of an abelian neat ring r is twin-good if and only if r has no factor ring isomorphic to z2  or z3. the main result of [24] states some conditions that any right self-injective ring r is twin-good. we extend this result to any regular baer ring r by proving that every element of a...

background and purpose: nurses constitute the largest group of human resources in healthcare systems of almost all countries they also play a significant role in community health promotion. nurses’ job satisfaction is of great importance in the promotion of healthcare quality. therefore, the present study aimed to analyze the relationship between personality type (type a & b) and job satisfacti...

Emergency department is one of the important parts of hospitals, and patients' satisfaction with this department significantly affects their overall satisfaction with the hospital. Therefore, evaluating patients' satisfaction level with the emergency part has been taken into account in different studies. The purpose of this study was to systematically review all available primary studies and th...

in this article we study two different generalizations of von neumann regularity, namely strong topological regularity and weak regularity, in the banach algebra context. we show that both are hereditary properties and under certain assumptions, weak regularity implies strong topological regularity. then we consider strong topological regularity of certain concrete algebras. moreover we obtain ...