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检索条件"作者=I.Sekkak"
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Vaccination effect on a stochastic epidemic model with healing and relapse
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international Journal of Biomathematics 2024年 第1期17卷 29-59页
作者: M.M.Abdeslami L.Basri M.El Fatini i.sekkak R.Taki Laboratory of Partial Differential Equations Spectral Algebra and Geometry Department of Mathematics Faculty of Sciences Ibn Tofail UniversityBP 133KénitraMorocco Centre de Recherche en Sante Publique Montréal(Québec)H3N 1X9 Canada Departement de Medecine Sociale et Preventive Ecole de SantéPublique de I'Universitéde Montreal 101Avenue du ParcMontréal(Quebec)H3N 1X9Canada EST Sidi Bennour Chouaib Doukkali UniversityEl JadidaMorocco
in this work,we consider a stochastic epidemic model with vaccination,healing and *** prove the existence and the uniqueness of the positive *** establish sufficient conditions for the extinction and the persistence i... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
A stochastic threshold of a delayed epidemic model incorporating Levy processes with harmonic mean and vaccination
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international Journal of Biomathematics 2020年 第7期13卷 297-323页
作者: Mohamed El Fatini idriss sekkak Aziz Laaribi Roger Pettersson Kai Wang Laboratory of PDE’s Algebra and Spectral Geometry Faculty of SciencesIbn Tofail University BP 133KenitraMorocco Department of Mathematics Sultan Moulay Slimane University Beni MellalMorocco Department of Mathematics Linnaeus University 35195 VaxjoSweden Department of Applied Mathematics Anhui University of Finance and Economics Bengbu 233030 P.R.China
The aim of this paper is to investigate a stochastic threshold for a delayed epidemic model driven by Levy noise with a nonlinear incidence and ***,we derive a stochastic threshold 77s which depends on model parameter... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Synthesis and <i>in Vitro</i>Cytotoxic Activity of Novel Pyrazole-3,4-dicarboxylates
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international Journal of Organic Chemistry 2013年 第1期3卷 37-41页
作者: Hanan sekkak El Mostapha Rakib Medaghri-Alaoui Abdelouahid Abderrafia Hafid Abdelghani El Malki Laboratoire de Chimie Organique et Analytique Faculté des Sciences et Techniques Université Sultan Moulay Slimane Béni-MellalMorocco
N-Aryl-C-ethoxycarbonylnitrile imines (3a-g) react with ethyl cyanoacetate 1 in 1,3-dipolar cycloaddition to yield novel pyrazole-3,4-dicarboxylates (4a-g) in moderate yields. The reaction of pyrazole-3,4-dicarboxylat... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论