Objective: This study aimed to examine the prevalence of smoking, alcohol, and substance use among high school students factors that cause them them. 
 Materials Methods: 42629 are included in this descriptive study. Considering smoking is 25.0%, sample size 846. A questionnaire was conducted with 975 persons nine schools, which had been selected through a stratified sampling method. The c...

Heusler materials have attracted a large amount of attention in the development of spintronic technologies. In this issue, Wang et al. [IUCrJ (2017), 4, 758-768] show how strain can be used to tune the band structure of these materials.

1. Shisana O Rehle T, Simbahi L, et al. South African National HIV Prevalence, HIV Incidence, Behaviour and Communication Survey, 2005. Cape Town, HSRC Press, 2005. 2. Shisana O, Hall EJ, Maluleke R, Chauveau J, Schwabe C. HIV/AIDS prevalence among South African health workers. S Afr Med J 2004; 94: 846-850. 3. Auvert B, Males S, Puren A, Taljaard D, Carael M, Williams B. Can highly active anti...

The aim of this study, through the estimation of a cost function, is to estimate the scale economies and scale and X-inefficiencies of commercial banks operating in Indonesia with a view to identifying hypothetical mergers that could deliver significant cost savings. Economies of scale are typically only found for the largest and smallest banks, with the industry’s estimated scale inefficiency ...

Let’s begin by briefly reviewing the Matlab routines required for VQ-based image compression. First, note that the VQ parameters are set on lines 13-19 of prob1.m. The general VQ framework is implemented by learnVQ.m, which uses the subroutine kmeans.m to implement the k-means algorithm. (Note that, as recommended, we use findnn.m and lpnorm.m within the k-means implementation to allow flexible...

Objective The objective of this study was to evaluate patients with ganglionic acetylcholine receptor antibody (gAChR-Ab) positive autoimmune autonomic ganglionopathy using a multimodal testing protocol characterize their full clinical phenotype and explore biomarkers quantify immunotherapy response. Methods We conducted cohort 13 individuals (7 women, 21–69 years age) failure gAChR-Ab >100 pM ...

It is very common in regression analysis to encounter incompletely observed covariate information. A recent approach to analyse such data is weighted estimating equations (Robins, J. M., Rotnitzky, A. and Zhao, L. P. (1994), JASA, 89, 846-866, and Zhao, L. P., Lipsitz, S. R. and Lew, D. (1996), Biometrics, 52, 1165-1182). With weighted estimating equations, the contribution to the estimating eq...

Synaptic hypothesis of schizophrenia suggests that alterations of synaptic transmission and neuronal connectivity might be core feature of schizophrenia. STON2 participates in synaptic vesicle protein recognition and neural endocytosis. To explore the association of STON2 with schizophrenia, 11 single nucleotide polymorphisms (SNPs) were examined in 768 Chinese Han schizophrenia cases and 1347 ...