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数学译林 2024年第2期43卷 134-149页

作者： V.I.arnol.d 苏敏(译) 李明坤(校) 不详

编委会想通过这篇文章让读者了解一位著名科学家对其老师***(柯尔莫戈洛夫)对自然科学贡献的介绍(这当然很有趣)编委会不对论文作者观点负责.该论文的内容引起了编委会成员的争议。作者不同意建议的评论,因此其中一些评论放在脚注中。

关键词：编委会成员柯尔莫戈洛夫论文作者自然科学 Kolmogorov 评论

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数学和力学中的分叉和奇异性

力学进展 1989年第2期 217-231页

作者： V.I.arnol.d,朱照宣苏联Steklov数学研究所莫斯科

在对力学及其他系统分析其与参数的依赖性时,分叉(bifurcation)理论所起的作用,类似于振动理论中动力学系统相图定性理论的作用。分叉理论的基础,和动力学系统定性理论的基础一样,可追溯到Poincaré的工作(但有些重要问题Huygens曾研究... 详细信息

在对力学及其他系统分析其与参数的依赖性时,分叉(bifurcation)理论所起的作用,类似于振动理论中动力学系统相图定性理论的作用。分叉理论的基础,和动力学系统定性理论的基础一样,可追溯到Poincaré的工作(但有些重要问题Huygens曾研究过)。然而这些问题的解只有到了近几十年才有可能得到,这是由于奇异性(singularity)理论的进

关键词：奇异性曲面激波分叉理论退化系统数学

Epidemiology of carbapenem-resistant Acinetobacter baumannii colonization in neonatal intensive care units:A systematic review and meta-analysis

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World Journal of Meta-Analysis 2024年第1期12卷 1-10页

作者： Donatien Serge Mbaga Sebastien Kenmoe Seraphine Nkie Esemu arnol.Bowo-Ngandji Nene Kaah Keneh Jane-Francis Tatah Kihla Akoachere Hortense Kamga Gonsu Roland Ndip Ndip Jean Thierry Ebogo-Belobo Cyprien Kengne-Ndé Nicholas Tendongfor Jean Paul Assam Assam Lucy Mande Ndip Jacky Njiki Bikoï Sara Honorine Riwom Essama Department of Microbiology The University of Yaounde IYaounde 00237Cameroon Department of Microbiology and Parasitology University of BueaBuea 00237Cameroon Faculty of Medicine and Biomedical Sciences The University of Yaounde IYaounde 00237Cameroon Center for Research in Health and Priority Pathologies Institute of Medical Research and Medicinal Plants StudiesYaounde 00237Cameroon Epidemiological Surveillance Evaluation and Research UnitNational AIDS Control CommitteeDouala 00237Cameroon

BACKGROUND The rising prevalence of carbapenem-resistant Acinetobacter baumannii(CRAB)in neonatal intensive care units(NICUs)represents an escalating challenge in healthcare settings,particularly in managing hospital-acquired infections(HAIs).Studies across various World Health Organization regions have documented a significant incidence of CRAB-related HAIs,with rates as high as 41.7 cases per 1000 patients in ICUs,accounting for 13.6%of all *** infections pose a doubled mortality risk compared to infections with carbapenem-susceptible Acinetobacter baumannii.A particularly concerning aspect of CRAB colonization is its asymptomatic nature,enabling its transmission through healthcare workers(HCWs)or the NICU environment to vulnerable neonates with developing immune *** To explore the prevalence of CRAB colonization in NICUs,focusing on neonates,healthcare workers,and the environmental samples,to enhance epidemiological understanding and inform targeted *** We conducted according to PRISMA 2020 checklist guidelines,a comprehensive literature search across multiple databases including MEDLINE(Ovid),EMBASE(Ovid),Global Health(Ovid),Web of Science,and Global Index *** were selected based on predetermined criteria,primarily involving neonates,HCWs,and environmental swabs,using culture or molecular methods to detect CRAB *** excluded studies that did not specifically focus on NICUs,were duplicates,or lacked necessary *** study selection and quality assessment were conducted independently by two *** extraction involved collecting comprehensive details about each *** statistical analysis used a random-effects model to calculate the pooled prevalence and confidence intervals,stratifying results by regional *** assessed study heterogeneity using Cochran's Q statistic and I²statistic,with regression tests employed to evaluate potential publication *** We analyzed 737 records from f

关键词： Colonization Carbapenem-resistant Acinetobacter baumannii Neonatal intensive-care unit

Association between Polymorphisms of SNPs Located at the 3’-Untranslated Region of SET8 and Codon 72 of the TP53 with Breast Cancer among Cameroonian Women

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Journal of Biosciences and Medicines 2020年第11期8卷 23-45页

作者： arnol.Auvaker Zébazé Tiofack elvis A. Ofon Esther Dina Bell Chancelin M. Kamla Roger Tchamfong Smiths Lueong Gustave Simo Molecular Parasitology & Entomology Unit Department of Biochemistry Faculty of Science University of Dschang Dschang Cameroon Medical Oncology Direction of the Bonassama District Hospital Douala Cameroon Faculty of Medicine and Pharmaceutical Science University of Douala Douala Cameroon St. Joseph Clinic Cancer Center Yaounde Cameroon German Cancer Research Center Essen Germany

In sub-Saharan Africa, breast cancer (BC) constitutes a serious public health problem and the genetic basis of its development is remaining poorly understood. Although the SNPs at codon 72 of TP53 (rs1042522) and at the UTR of SET8 (rs16917496) have both been associated with BC development among Asian and European women, no published data has been reported within African population. We herein report on the impact of these polymorphisms on the risk of BC among Cameroonian women. Blood samples were collected from 111 breast cancer patients and 224 controls. DNA was extracted from each sample and PCR-RFLP was used to investigate the polymorphisms at SNPs rs1042522 of TP53 and rs16917496 of SET8. Association studies were performed according to ethno-linguistic groups and menopausal status. The minor allele “T” of SET8 gene revealed a protective effect in premenopausal women (OR, 0.327;95% CI 0.125 - 0.852) while the CT genotype of SET8 was associated with increased risk of BC (OR, 2.93;95% CI, 1.1 - 7.8). The minor “G” allele of TP53 gene was significantly associated (OR, 2.533;95% CI, 1.455 - 4.408) with increased disease risk in premenopausal women while the CG genotype was significantly associated (OR, 0.39;95% CI, 0.23 - 0.69) with decreased risk of BC. A synergistic genetic interaction at both loci for CC genotype of SET8 and CG genotype of TP53 was associated (OR, 0.46;95% CI, 0.24 - 0.91) with reduced disease risk. No significant association between polymorphisms at the SET8 and TP53 loci and clinical pathologic features of BC was observed. This study suggests significant associations between the SNPs located at the 3’-UTR of SET8 and codon 72 of the TP53 with the risk of breast cancer development among premenopausal women. There is an interaction between TP53 and SET8 genes.

关键词： SNPs TP53 SET8 Breast Cancer Women Cameroon

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从Hilbert的叠加问题到动力系统理论

数学译林 2023年第3期42卷 213-227,284页

作者： V.I.arnol.d 穆心和(译) 陆柱家(校) 不详

有些人,即使他们学习,但没有足够的热情,因此会长寿。Novgorod大主教Genady于约1500年给Metropolitan Simon的信今天,我将试图解释我所研究的主题的多样性。事实上,我从一开始就遵循一条路线,那里本质上有我一生都在努力解决的一个问题... 详细信息

有些人,即使他们学习,但没有足够的热情,因此会长寿。Novgorod大主教Genady于约1500年给Metropolitan Simon的信今天,我将试图解释我所研究的主题的多样性。事实上,我从一开始就遵循一条路线,那里本质上有我一生都在努力解决的一个问题.这个事实对我而言似乎很奇怪,但我会尝试解释它。

关键词：动力系统理论 Hilbert Metropolitan

Association between early viral lower respiratory tract infections and subsequent asthma development

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World Journal of Critical Care Medicine 2022年第4期11卷 298-310页

作者： Sebastien Kenmoe Etienne Atenguena Okobalemba Guy Roussel Takuissu Jean Thierry Ebogo-Belobo Martin Gael Oyono Jeannette Nina Magoudjou-Pekam Ginette Irma Kame-Ngasse Jean Bosco Taya-Fokou Chris Andre Mbongue Mikangue Raoul Kenfack-Momo Donatien Serge Mbaga arnol.Bowo-Ngandji Cyprien Kengne-Ndé Seraphine Nkie Esemu Richard Njouom Lucy Ndip Department of Microbiology and Parasitology University of BueaBuea 00237Cameroon Department of Virology Centre Pasteur of CameroonYaounde 00237Cameroon Faculty of Medicine and Biomedical Science The University of Yaounde IYaounde 00237Cameroon Centre of Research in Food Food Security and NutritionInstitute of Medical Research and Medicinal Plants StudiesYaounde 00237Cameroon Medical Research Centre Institute of Medical Research and Medicinal Plants StudiesYaounde 00237Cameroon Laboratory of Parasitology and Ecology The University of Yaounde IYaounde 00237Cameroon Department of Biochemistry The University of Yaounde IYaounde 00237Cameroon Department of Microbiology The University of Yaounde IYaounde 00237Cameroon Epidemiological Surveillance Evaluation and Research UnitNational Aids Control CommitteeDouala 00237Cameroon

BACKGROUND The association between hospitalization for human respiratory syncytial virus(HRSV)bronchiolitis in early childhood and subsequent asthma is well *** long-term prognosis for non-bronchiolitis lower respiratory tract infections(LRTI)caused by viruses different from HRSV and rhinovirus,on the other hand,has received less *** To investigate the relationship between infant LRTI and later asthma and examine the influence of confounding *** The PubMed and Global Index Medicus bibliographic databases were used to search for articles published up to October 2021 for this systematic *** included cohort studies comparing the incidence of asthma between patients with and without LRTI at≤2 years regardless of the virus *** meta-analysis was performed using the random effects *** of heterogeneity were assessed by stratified *** This review included 15 articles(18 unique studies)that met the inclusion *** at≤2 years were associated with an increased risk of subsequent asthma up to 20 years[odds ratio(OR)=5.0,95%CI:3.3-7.5],with doctor-diagnosed asthma(OR=5.3,95%CI:3.3-8.6),current asthma(OR=5.4,95%CI:2.7-10.6),and current medication for asthma(OR=1.2,95%CI:0.7-3.9).Our overall estimates were not affected by publication bias(P=0.671),but there was significant heterogeneity[I 2=58.8%(30.6-75.5)].Compared to studies with hospitalized controls without LRTI,those with ambulatory controls had a significantly higher strength of association between LRTIs and subsequent *** strength of the association between LRTIs and later asthma varied significantly by country and age at the time of the *** sensitivity analyses including only studies with similar proportions of confounding factors(gender,age at LRTI development,age at interview,gestational age,birth weight,weight,height,smoking exposure,crowding,family history of atopy,and family history of asthma)between cases and controls

关键词： Asthma Lower respiratory tract infections Respiratory viruses Long term sequelae Children

Systematic review and meta-analysis of seroprevalence of human immunodeficiency virus serological markers among pregnant women in Africa, 1984-2020

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World Journal of Critical Care Medicine 2023年第5期12卷 264-285页

作者： Jean Thierry Ebogo-Belobo Sebastien Kenmoe Chris Andre Mbongue Mikangue Serges Tchatchouang Lontuo-Fogang Robertine Guy Roussel Takuissu Juliette Laure Ndzie Ondigui arnol.Bowo-Ngandji Raoul Kenfack-Momo Cyprien Kengne-Ndé Donatien Serge Mbaga elisabeth Zeuko'o Menkem Ginette Irma Kame-Ngasse Jeannette Nina Magoudjou-Pekam Josiane Kenfack-Zanguim Seraphine Nkie Esemu Paul Alain Tagnouokam-Ngoupo Lucy Ndip Richard Njouom Center for Research in Health and Priority Pathologies Institute of Medical Research and Medicinal Plants StudiesYaounde 00237Cameroon Department of Microbiology and Parasitology University of BueaBuea 00237Cameroon Department of Microbiology The University of Yaounde IYaounde 00237Cameroon Scientific Direction Centre Pasteur du CamerounYaounde 00237Cameroon Department of Animal Biology University of DschangDschang 00237Cameroon Centre for Food Food Security and Nutrition ResearchInstitute of Medical Research and Medicinal Plants StudiesYaounde 00237Cameroon Department of Biochemistry The University of Yaounde IYaounde 00237Cameroon Epidemiological Surveillance Evaluation and Research UnitNational AIDS Control CommitteeDouala 00237Cameroon Department of Biomedical Sciences University of BueaBuea 00237Cameroon Department of Virology Centre Pasteur du CamerounYaounde 00237Cameroon

BACKGROUND Human immunodeficiency virus(HIV)is a major public health concern,particularly in Africa where HIV rates remain *** women are at an increased risk of acquiring HIV,which has a significant impact on both maternal and child *** To review summarizes HIV seroprevalence among pregnant women in *** also identifies regional and clinical characteristics that contribute to study-specific estimates *** The study included pregnant women from any African country or region,irrespective of their symptoms,and any study design conducted in any *** electronic literature searches,articles published until February 2023 were *** quality of the included studies was *** DerSimonian and Laird random-effects model was applied to determine HIV pooled seroprevalence among pregnant women in *** and sensitivity analyses were conducted to identify potential sources of *** was assessed with Cochran's Q test and I2 statistics,and publication bias was assessed with Egger's *** A total of 248 studies conducted between 1984 and 2020 were included in the quantitative synthesis(meta-analysis).Out of the total studies,146(58.9%)had a low risk of bias and 102(41.1%)had a moderate risk of *** HIV-positive pregnant women died in the included *** overall HIV seroprevalence in pregnant women was estimated to be 9.3%[95%confidence interval(CI):8.3-10.3].The subgroup analysis showed statistically significant heterogeneity across subgroups(Pelopment of targeted public health interventions to address high HIV seroprevalence

关键词： Human immunodeficiency virus Pregnant women Africa Prevalence Review Meta-analysis

Global prevalence of hepatitis B virus serological markers among healthcare workers:A systematic review and meta-analysis

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World Journal of Hepatology 2021年第9期13卷 1190-1202页

作者： Gadji Mahamat Sebastien Kenmoe Etheline W Akazong Jean Thierry Ebogo-Belobo Donatien Serge Mbaga arnol.Bowo-Ngandji Joseph Rodrigue Foe-Essomba Marie Amougou-Atsama Chavely Gwladys Monamele Chris Andre Mbongue Mikangue Ginette Irma Kame-Ngasse Jeannette Nina Magoudjou-Pekam Cromwel Zemnou-Tepap Dowbiss Meta-Djomsi Martin Maidadi-Foudi Sabine Aimee Touangnou-Chamda Audrey Gaelle Daha-Tchoffo Abdel Aziz Selly-Ngaloumo Rachel Audrey Nayang-Mundo Jacqueline Felicite Yengue Jean Bosco Taya-Fokou Lorraine K M Fokou Raoul Kenfack-Momo Dimitri Tchami Ngongang Efietngab Atembeh Noura Herve Raoul Tazokong Cynthia Paola Demeni Emoh Cyprien Kengne-Nde Jean Joel Bigna Onana Boyomo Richard Njouom Department of Microbiology The University of Yaounde IYaounde 00237Cameroon Department Centre Pasteur of CameroonYaounde 00237Cameroon Department of Biochemistry University of DschangDschang 00237Cameroon Medical Research Centre Institute of Medical Research and Medicinal Plants StudiesYaounde 00237Cameroon Department of Mycobacteriology Centre Pasteur of CameroonYaounde 00237Cameroon Centre de Recherche sur les Maladies Emergentes et Re-Emergentes Institut de Recherches Medicales et d'Etudes des Plantes MedicinalesYaounde 00237Cameroon Department of Biochemistry The University of Yaounde IYaounde 00237Cameroon Department of Medical Biochemistry The University of Yaounde IYaounde 00237Cameroon Department of Microbiology Protestant University of Central AfricaYaounde 00237Cameroon Department of Animals Biology and Physiology The University of Yaounde IYaounde 00237Cameroon Evaluation and Research Unit National AIDS Control CommitteeYaounde 00237Cameroon Department of Epidemiology and Public Health Centre Pasteur of CameroonYaounde 00237Cameroon

BACKGROUND The hepatitis B virus(HBV)infection is a global public health concern that affects about 2 billion people and causes 1 million people deaths *** is a bloodborne disease and healthcare workers(HCWs)are a high-risk group because of occupational hazard to patients’*** regions of the world show a highly variable proportion of HCWs infected and/or immunized against *** data on serologic markers of HBV infection and immunization in HCWs are very important to improve strategies for HBV *** To determine the worldwide prevalence of HBV serological markers among *** In this systematic review and meta–analyses,we searched PubMed and Excerpta Medica Database(Embase)to identify studies published between 1970 and 2019 on the prevalence of HBV serological markers in HCWs *** also manually searched for references of relevant *** independent investigators selected studies and included those on the prevalence of each of the HBV serological markers including hepatitis B surface antigen(HBsAg),hepatitis e antigen(HBeAg),immunoglobulin M anti-HBc,and *** quality of eligible studies was assessed and random-effect model meta-analysis resulted in the pooled prevalence of HBV serological markers HBV infection in ***(I²)was assessed using theχ²test on Cochran’s Q statistic and H ***’sources were explored through subgroup and metaregression *** study is registered with PROSPERO,number *** We reviewed 14059 references,out of which 227 studies corresponding to 448 prevalence data among HCWs(224936 HCWs recruited from 1964 to 2019 in 71 countries)were included in this *** pooled seroprevalences of current HBsAg,current HBeAg,and acute HBV infection among HCWs were 2.3%[95% confidence interval(CI):1.9-2.7],0.2%(95%CI:0.0-1.7),and 5.3%(95%CI:1.4-11.2),*** pooled seroprevalences of total immunity against HBV and immu

关键词： Healthcare workers Hepatitis B virus Seroprevalence Hepatitis B surface antigen Hepatitis e antigen

Global prevalence of occult hepatitis C virus: A systematic review and meta-analysis

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World Journal of Methodology 2022年第3期12卷 179-190页

作者： Donatien Serge Mbaga Sebastien Kenmoe Jacky Njiki Bikoï Guy Roussel Takuissu Marie Amougou-Atsama Etienne Atenguena Okobalemba Jean Thierry Ebogo-Belobo arnol.Bowo-Ngandji Martin Gael Oyono Jeannette Nina Magoudjou-Pekam Ginette Irma Kame-Ngasse Alex Durand Nka Alfloditte Flore Feudjio Cromwel Zemnou-Tepap elie Adamou Velhima Juliette Laure Ndzie Ondigui Rachel Audrey Nayang-Mundo Sabine Aimee Touangnou-Chamda Yrene Kamtchueng Takeu Jean Bosco Taya-Fokou Chris Andre Mbongue Mikangue Raoul Kenfack-Momo Cyprien Kengne-Ndé Carole Stephanie Sake Seraphine Nkie Esemu Richard Njouom Lucy Ndip Sara Honorine Riwom Essama Department of Microbiology The University of Yaounde IYaounde 00237Cameroon Department of Microbiology and Parasitology University of BueaBuea 00237Cameroon Department of Virology Centre Pasteur of CameroonYaounde 00237Cameroon Centre of Research in Food Food Security and NutritionInstitute of Medical Research and Medicinal Plants StudiesYaounde 00237Cameroon Centre de Recherche sur les Maladies Emergentes et Re-Emergentes Institute of Medical Research and Medicinal Plants StudiesYaounde 00237Cameroon Faculty of Medicine and Biomedical Science The University of Yaounde IYaounde 00237Cameroon Medical Research Centre Institute of Medical Research and Medicinal Plants StudiesYaounde 00237Cameroon Laboratory of Parasitology and Ecology The University of Yaounde IYaounde 00237Cameroon Department of Biochemistry The University of Yaounde IYaounde 00237Cameroon Virology Laboratory Chantal Biya International Reference Center for Research on HIV/AIDS Prevention and ManagementYaounde 00237Cameroon

BACKGROUND Occult hepatitis C infection(OCI)is characterized by the presence of hepatitis C virus(HCV)RNA in the liver,peripheral blood mononuclear cells(PBMC)and/or ultracentrifuged serum in the absence of detectable HCV-RNA in *** has been described in several categories of populations including hemodialysis patients,patients with a sustained virological response,immunocompromised individuals,patients with abnormal hepatic function,and apparently healthy *** To highlight the global prevalence of *** We performed a systematic and comprehensive literature search in the following 4 electronic databases PubMed,EMBASE,Global Index Medicus,and Web of Science up to 6th May 2021 to retrieve relevant studies published in the *** studies were unrestricted population categories with known RNA status in serum,PBMC,liver tissue and/or ultracentrifuged *** were extracted independently by each author and the Hoy et al tool was used to assess the quality of the included *** used the random-effect meta-analysis model to estimate the proportions of OCI and their 95%confidence intervals(95%CI).The Cochran's Q-test and the I2 test statistics were used to assess heterogeneity between *** plot and Egger test were used to examine publication bias.R software version 4.1.0 was used for all *** The electronic search resulted in 3950 *** obtained 102 prevalence data from 85 included *** pooled prevalence of seronegative OCI was estimated to be 9.61%(95%CI:6.84-12.73)with substantial heterogeneity[I^(2)=94.7%(95%CI:93.8%-95.4%),P<0.0001].Seropositive OCI prevalence was estimated to be 13.39%(95%CI:7.85-19.99)with substantial heterogeneity[I^(2)=93.0%(90.8%-94.7%)].Higher seronegative OCI prevalence was found in Southern Europe and Northern Africa,and in patients with abnormal liver function,hematological disorders,and kidney *** seropositive OCI prevalence was found in Southern Europe,Northern

关键词： Occult hepatitis C virus infection Prevalence Worldwide Peripheral blood mononuclear cells Hepatitis C virus