Let $G$ be a simple connected graph. In this paper, Szeged dimension and PI$_v$ dimension of graph $G$ are introduced. It is proved that if $G$ is a graph of Szeged dimension $1$ then line graph of $G$ is 2-connected. The dimensions of five composite graphs: sum, corona, composition, disjunction and symmetric difference with strongly regular components is computed. Also explicit formulas of Sze...

OBJECTIVE Cognitive deficits may be vulnerability markers for the development of schizophrenia. This study examined whether cognitive deficits are related to specific dimensions of subclinical psychotic experiences and whether associations between these variables are caused by additive genetic, common environmental and/or individual-specific environmental factors. METHOD A general population ...

A new design of a guiding-index photonic crystal fiber which possesses a beam shaping effect and flexible control of dispersion has been proposed in this paper. It can shape a Gaussian beam into a circular hollow beam with certain dimension, which can be used in optical communication systems with a Cassegrain antenna to improve transmission efficiency by avoiding the loss of energy caused by th...

The application of random fields to real-world problems, e.g. for assessing the robustness and reliability of structural components with geometrical or material tolerances, has gained much interest recently. However, the large number of random variables involved inhibits the use of accurate and efficient methods to compute failure probabilities. Several measures to handle the large dimension or...

Structural pattern recognition describes and classifies data based on the relationships of features and parts. Topological invariants, like the Euler number, characterize the structure of objects of any dimension. Cohomology can provide more refined algebraic invariants to a topological space than does homology. It assigns ‘quantities’ to the chains used in homology to characterize holes of any...

Objective Idiopathic scoliosis is a structural, lateral, rotated curvature of the spine. Scoliosis may worsen progressively, in some cases leading to back pain, body image concerns, and cardiopulmonary compromise. To date, a variety of pathogenic factors have been proposed as a cause of idiopathic scoliosis. However, the pathogenesis of idiopathic scoliosis remains unclear, and a consistent and...

According to the tradition, music ensembles are usually lead by a conductor who is the responsible to coordinate and guide the group under a specific musical criteria. Similarly, computer ensembles resort to a conductor to keep the synchronization and structural coordination of the performance, often with the assistance of software. Achieving integration and coherence in a networked performance...

Actual data warehouses models usually consider OLAP dimensions as static entities. However, in practice, structural changes of dimensions schema are often necessary to adapt the multidimensional database to changing requirements. This paper presents a new structural update operator for OLAP dimensions. This operator can create a new level to which, a pre-existent level in an OLAP dimension hier...

Structural pattern recognition describes and classifies data based on the relationships of features and parts. Topological invariants, like the Euler number, characterize the structure of objects of any dimension. Cohomology can provide more refined algebraic invariants to a topological space than does homology. It assigns ‘quantities’ to the chains used in homology to characterize holes of any...

background: increasing of chronic patients who need permanent support andstaff who are daily exposed to psychological stress need to hospitals that note to health promotion programs. healthpromoting hospitals (hph)was expressed by the world health organization in the 1990s. so a large numberof hospitals in the world have implemented health promotion programs. but hospitalsin iran not implement ...