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In South Korea, age-disaggregated tuberculosis (TB) data at the district level are not publicly available due to privacy constraints, limiting fine-scale analyses of healthcare accessibility. To address this limitation, we present a…

物理与社会 · 物理学 2026-03-20 Yongsung Kwon , Deok-Sun Lee , Mi Jin Lee , Seung-Woo Son

The transmission dynamics of Tuberculosis (TB) involve complex epidemiological and socio-economical interactions between individuals living in highly distinct regional conditions. The level of exogenous reinfection and first time infection…

We consider the problem of constructing public facilities, such as hospitals, airports, or malls, in a country with a non-uniform population density, such that the average distance from a person's home to the nearest facility is minimized.…

无序系统与神经网络 · 物理学 2007-05-23 Michael T. Gastner , M. E. J. Newman

Tuberculosis (TB) continues to pose a major public health challenge, particularly in high-burden regions such as Ethiopia, necessitating a more profound understanding of its transmission dynamics. In this study, we developed an SVEITRS…

种群与进化 · 定量生物学 2025-06-26 Moksina Seyid , Abdu Mohammed Seid , Yassin Tesfaw Abebe

The difficulty of getting medical treatment is one of major livelihood issues in China. Since patients lack prior knowledge about the spatial distribution and the capacity of hospitals, some hospitals have abnormally high or sporadic…

社会与信息网络 · 计算机科学 2017-08-03 Hanqing Chao , Yuan Cao , Junping Zhang , Fen Xia , Ye Zhou , Hongming Shan

Tuberculosis remains a significant global health challenge, with millions of new cases reported annually. Recent studies suggest that expanding the accessibility of TB intervention programs can lead to a substantial decrease in both TB…

his paper describes and analyzes the spatial spread of tuberculosis (TB) on complex metapopulation, that is, networks of populations connected by migratory flows whose configurations are described in terms of connectivity distribution of…

动力系统 · 数学 2015-03-13 Berge Tsanou , Samuel Bowong , Jean Jules Tewa

Tuberculosis (TB) is an infectious disease transmitted through the respiratory system. China is one of the countries with a high burden of TB. Since 2004, an average of more than 800,000 cases of active TB have been reported each year in…

应用统计 · 统计学 2023-04-03 Chuanqing Xu , Kedeng Cheng , Yu Wang , Songbai Guo , Maoxing Liu , Xiaojing Wang , Zhiguo Zhang

Efficient allocation of limited medical resources is crucial for controlling epidemic spreading on networks. Based on the susceptible-infected-susceptible model, we solve an optimization problem as how best to allocate the limited resources…

种群与进化 · 定量生物学 2017-08-02 Hanshuang Chen , Guofeng Li , Haifeng Zhang , Zhonghuai Hou

We introduce a new tuberculosis (TB) mathematical model, with $25$ state-space variables where $15$ are evolution disease states (EDSs), which generalises previous models and takes into account the (seasonal) flux of populations between a…

种群与进化 · 定量生物学 2018-05-25 Eugenio M. Rocha , Cristiana J. Silva , Delfim F. M. Torres

Regular tuberculosis (TB) screening is required for healthcare employees since they can come into contact with infected patients. TB is a serious, contagious, and potentially deadly disease. Early detection of the disease, even when it is…

最优化与控制 · 数学 2020-07-14 Mahsa Kiani , Tugce Isik , Burak Eksioglu

Mathematical modelling can help to explain the nature and dynamics of infection transmissions, as well as support a policy for implementing those strategies that are most likely to bring public health and economic benefits. The paper…

最优化与控制 · 数学 2015-09-01 Roman Denysiuk , Cristiana J. Silva , Delfim F. M. Torres

We apply optimal control theory to a tuberculosis model given by a system of ordinary differential equations. Optimal control strategies are proposed to minimize the cost of interventions, considering reinfection and post-exposure…

最优化与控制 · 数学 2013-07-15 Cristiana J. Silva , Delfim F. M. Torres

We review the optimal control of systems modeling the dynamics of tuberculosis. Time dependent control functions are introduced in the mathematical models, representing strategies for the improvement of the treatment and cure of active…

最优化与控制 · 数学 2015-08-18 Cristiana J. Silva , Delfim F. M. Torres

The goal of immunotherapy is to enhance the ability of the immune system to kill cancer cells. Immunotherapy is more effective and, in general, the prognosis is better, when more immune cells infiltrate the tumor. We explore the question of…

China is one of the countries with a high burden of tuberculosis, and although the number of new cases of tuberculosis has been decreasing year by year, the number of new infections per year has remained high and the diagnosis rate of…

种群与进化 · 定量生物学 2024-01-26 Chuanqing Xu , Kedeng Cheng , Songbai Guo , Dehui Yuan , Xiaoyu Zhao

We propose and analyse an optimal control problem where the control system is a mathematical model for tuberculosis that considers reinfection. The control functions represent the fraction of early latent and persistent latent individuals…

最优化与控制 · 数学 2014-10-13 Paula Rodrigues , Cristiana J. Silva , Delfim F. M. Torres

In this article, we study the optimization of resource distributions in a one-dimensional logistic diffusive model. The goal is to determine a distribution on a bounded one-dimensional domain that maximizes the total population at…

偏微分方程分析 · 数学 2025-11-21 Junyoung Heo , Yubin Lee

The problem of minimizing convex functionals of probability distributions is solved under the assumption that the density of every distribution is bounded from above and below. A system of sufficient and necessary first-order optimality…

信息论 · 计算机科学 2018-12-05 Michael Fauss , Abdelhak M. Zoubir

An innovative sampling strategy is proposed, which applies to large-scale population-based surveys targeting a rare trait that is unevenly spread over a geographical area of interest. Our proposal is characterised by the ability to tailor…

统计方法学 · 统计学 2020-04-07 Fulvia Mecatti , Charalambos Sismanidis , Emanuela Furfaro
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