background: investigation of tuberculosis (tb)-specific indices including prevalence of tb, mortality of tb cases excluding hiv, hiv/tb mortality, incidence of tb (all forms), hiv/tb incidence as well as case detection and related trends is a crucial step in evaluation of program performance and strategies success. besides, estimating the number and time of change points for tb incidence can he...

background: describing trend in tuberculosis (tb) over time can play an important role to assess the disease control strategies and predict the future morbidity and mortality. this study aimed to determine the incidence trend of smear‑positive pulmonary tuberculosis (sppt) in sub‑age and sex groups during the years of 1995–2012. methods: this retrospective cohort study was performed in 2015 by ...

This paper examines the hypothesis that both stock returns and volatility are asymmetrical functions of past information derived from domestic and US stock-market news. By employing a double-threshold regression GARCH model to investigate four major index-return series, we find significant evidence to sustain the asymmetrical hypothesis of stock returns. Specifically, evidence strongly supports...

Interrupted Time Series (ITS) analysis represents a powerful quasi-experime-ntal design in which a discontinuity is enforced at a specific intervention point in a time series, and separate regression functions are fitted before and after the intervention point. Segmented linear/quantile regression can be used in ITS designs to isolate intervention effects by estimating the sudden/level change (...

August 29, 2013 Type Package Title Threshold Regression Version 1.0.2 Date 2012-11-26 Author Tao Xiao Maintainer Tao Xiao Depends survival, Formula Description Fit a threshold regression model based on the first-hitting-time of a boundary by the sample path of a Wiener diffusion process. The threshold regression methodology is well suited to applications involving survival ...

This paper examines the hypothesis that both stock returns and volatility are asymmetrical functions of past information derived from domestic and US stock market news. By employing a double-threshold regression GARCH model to investigate four major index return series, we find significant evidence to sustain the asymmetrical hypothesis of stock returns. Specifically, evidence strongly supports...

background: tuberculosis (tb) is a pandemic disease. it is the second leading cause of death from infectious diseases after human immunodeficiency virus (hiv) in the world . the main objective of this paper was to determine and compare the epidemiology of tb incidence rate and its trend changes during 1990-2010 in six who regions regarding age, gender and income levels. methods: the average ann...

http://dx.doi.org/10.1016/j.jvcir.2015.08.009 1047-3203/ 2015 Elsevier Inc. All rights reserved. q This paper has been recommended for acceptance by M.T. Sun. ⇑ Corresponding author. Fax: +86 028 61830064. E-mail addresses: [email protected] (Q. Wu), [email protected] (H. Li), [email protected] (F. Meng), [email protected] (K.N. Ngan), eezsy @uestc.edu.cn (S. Zhu). Qingbo Wu a,⇑, Hongli...