This paper presents an overview of the development of HIV/AIDS in South Africa, taking into consideration the social context and analyzing the factors most likely to have influenced its spread as well as the societal response to it. The authors argue that macro factors such as social and political structures, in addition to behavioral ones, have combined to shape the course of the epidemic. Sin...

The present work shows a novel fractal dimension method for shape analysis. The proposed technique extracts descriptors from a shape by applying a multi-scale approach to the calculus of the fractal dimension. The fractal dimension is estimated by applying the curvature scale-space technique to the original shape. By applying a multi-scale transform to the calculus, we obtain a set of descripto...

In this paper we deal with the dimension of multisequences and related properties. For a given multisequenceW and R ∈ Z+, we define the R−extension ofW . Further we count the number of multisequences W whose R−extensions have maximum dimension and give an algorithm to derive such multisequences. We then go on to use this theory to count the number of Linear Feedback Shift Register(LFSR) configu...

‎In this paper, we discuss about existence of solution for integro-differential system and then we solve it  by using the Petrov-Galerkin method. In the Petrov-Galerkin method choosing the trial and test space is important, so we use Alpert multi-wavelet as basis functions for these spaces. Orthonormality is one of the properties of Alpert multi-wavelet which helps us to reduce computations in ...

The purpose of this study is to identify the effective factors of optimal use of social media in the brand equity of startup companies. To this end, the researcher collected the required data using snowball sampling, protocol design, and exploratory interviews with sixteen university experts, the industry in this field, and senior managers of accelerator companies and startups. Maxqda 18 softwa...

OBJECTIVE Obesity and overweight have shown an increasing trend in most developing countries. Childhood obesity would impose numerous health-related problems. This study was conducted to determine the correlation of obesity and overweight with emotional-behavioral problems in primary school age girls. METHODS In a cross-sectional study, 300 primary school girls (aged 7-11 years) were selected...

We present a method to recover a fractal dimension of a multi-scale rough surface, the so-called correlation dimension, from the knowledge of the far-field scattered intensity. The results are validated by numerical experiments on Weierstrass-like surfaces.

We established a generalized version of the Christ-Kiselev's multi-linear operator technique to deal with spectral theory Schr\"odinger operators. As applications, several results perturbed periodic operators are obtained, including WKB solutions, sharp transitions preservation absolutely continuous spectra, criteria absence singular spectra and bounds Hausdorff dimension spectra.