Results 1 to 10 of about 117,798 (282)

Estimation of novel coronavirus (COVID‐19) reproduction number and case fatality rate: A systematic review and meta‐analysis

open access: yesHealth Science Reports, 2021
Background and aims Realizing the transmission potential and the magnitude of the coronavirus disease 2019 (COVID‐19) aids public health monitoring, strategies, and preparation.
Tanvir Ahammed   +5 more
doaj   +1 more source

Should more aggressive surgical resection be considered in the treatment for Bismuth types I and II hilar cholangiocarcinoma? A meta-analysis

open access: yesAsian Journal of Surgery, 2023
Evidence regarding the optical surgical extent for Bismuth type I/II HCCA is lacking. we aims to evaluate the optimal surgical methods for Bismuth type I/II HCCA. Studies comparing bile duct resection (BDR) and BDR combined with liver resection (BDR + LR)
Ya-Fei Hu   +5 more
doaj   +1 more source

Revisiting the basic reproductive number for malaria and its implications for malaria control.

open access: yesPLoS Biology, 2007
The prospects for the success of malaria control depend, in part, on the basic reproductive number for malaria, R0. Here, we estimate R0 in a novel way for 121 African populations, and thereby increase the number of R0 estimates for malaria by an order ...
David L Smith   +3 more
doaj   +1 more source

Model Parameters and Outbreak Control for SARS

open access: yesEmerging Infectious Diseases, 2004
Control of the 2002–2003 severe acute respiratory syndrome (SARS) outbreak was based on rapid diagnosis coupled with effective patient isolation. We used uncertainty and sensitivity analysis of the basic reproductive number R0 to assess the role that ...
Gerardo Chowell   +5 more
doaj   +1 more source

More on Dα-Closed Sets in Topological Spaces

open access: yesJournal of Mathematics, 2021
The aim of this paper is to present and study topological properties of Dα-derived, Dα-border, Dα-frontier, and Dα-exterior of a set based on the concept of Dα-open sets.
Xiao-Yan Gao, Ahmed Mostafa Khalil
doaj   +1 more source

Global Dynamics of an HTLV-1 Model with Cell-to-Cell Infection and Mitosis

open access: yesAbstract and Applied Analysis, 2014
A mathematical model of human T-cell lymphotropic virus type 1 in vivo with cell-to-cell infection and mitosis is formulated and studied. The basic reproductive number R0 is derived.
Sumei Li, Yicang Zhou
doaj   +1 more source

The basic reproduction number as a predictor for epidemic outbreaks in temporal networks. [PDF]

open access: yesPLoS ONE, 2015
The basic reproduction number R0--the number of individuals directly infected by an infectious person in an otherwise susceptible population--is arguably the most widely used estimator of how severe an epidemic outbreak can be.
Petter Holme, Naoki Masuda
doaj   +1 more source

Dynamics of a Market Share Model for Enterprises with Coopetition Strategy

open access: yesDiscrete Dynamics in Nature and Society, 2013
A deterministic model is used to study the change of the market share with coopetition strategy for enterprises. The model takes into consideration both coopetition enterprises and other enterprises, and the coopetition threshold R0 is identified and ...
Mingxia Zhao
doaj   +1 more source

Imported and autochthonous cases in the dynamics of dengue epidemics in Brazil Casos importados y autóctonos en la dinámica de epidemias de dengue en Brasil Casos importados e autóctones na dinâmica da epidemia de dengue no Brasil

open access: yesRevista de Saúde Pública, 2009
OBJECTIVE: To estimate the basic reproduction number (R0) of dengue fever including both imported and autochthonous cases. METHODS: The study was conducted based on epidemiological data of the 2003 dengue epidemic in Brasília, Brazil.
Nicolas Degallier   +3 more
doaj   +1 more source

Estimation of the basic reproduction number (R0) for the novel coronavirus disease in Sri Lanka

open access: yesVirology Journal, 2020
Background The basic reproduction number (R0) is the number of cases directly caused by an infected individual throughout his infectious period. R0 is used to determine the ability of a disease to spread within a given population. The reproduction number
Samath Dharmaratne   +5 more
doaj   +1 more source

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