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A Systematic Analysis of Systems Approach and Flood Risk management research:Trends,Gaps,and Opportunities

international Journal of Disaster Risk Science 2024年第1期15卷 45-57页

作者： Lum Sonita Awah Johanes Amate Belle Yong Sebastian Nyam Israel Ropo Orimoloye Disaster management Training and Education centre for Africa University of the Free StateBloemfontein 9300South Africa School of Environment Geographyand SustainabilityWestern Michigan UniversityKalamazooMI 49008USA

Flooding is a global threat,necessitating a comprehensive management *** to the complexity of managing flood hazards and risks,researchers have advocated for holistic,comprehensive,and integrated *** study,employing a systems thinking perspective,assessed global flood risk management research trends,gaps,and opportunities using132 published documents in BibTeX format.A systematic review of downloaded documents from the Scopus and Web of Science databases revealed slow progress of approximately 11.61% annual growth in applying systems thinking and its concomitant approaches to understanding global flood risk management over the past two decades compared to other fields like water resource management and business management systems.A significant gap exists in the application of systems thinking methodologies to flood risk management research between developed and developing countries,particularly in Africa,highlighting the urgency of reoriented research and policy *** application gaps of the study methodology are linked to challenges outlined in existing literature,such as issues related to technical expertise and resource *** study advocates a shift from linear to holistic approaches in flood risk management,aligned with the Sendai Framework for Disaster Risk Reduction 2015-2023 and the Sustainable Development *** among researchers,institutions,and countries is essential to address this global challenge effectively.

关键词： Flood risk management research Gaps and opportunities Global trends in flood research Systematic review.Systems thinking

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Viral Hepatitis B and C Detection among Ebola Survivors and Health Care Workers in Makeni, Sierra Leone

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Journal of Biosciences and Medicines 2020年第10期8卷 18-32页

作者： Nadege Goumkwa Mafopa Marta Giovanetti Raoul Emeric Guetiya Wadoum Antonella Minutolo Claude Kwe Yinda Gianluca Russo Béatrice Dambaya Georges Teto Georgia Ambada Patrick Turay Judith Torimiro Alexis Ndjolo Vittorio Colizzi Carla Montesano chantal biya international reference centre for research on hiv/aids prevention and management Yaoundé Cameroon University of Roma “Tor Vergata” Rome Italy National Institute of Health-ISS Rome Italy University of Makeni Sierra Leone National Institute of Health (NIH) Intramural research Program (IRP) Hamilton Montana USA University di Roma “Sapienza” Rome Italy chantal biya international reference centre for research on hiv/aids prevention and management University of Yaoundé I Yaoundé Cameroon Holy Spirit Hospital Makeni Sierra Leone Faculty of Medicine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon

Viral hepatitis B and C infections are among the leading cause of death in Sub-Saharan Africa. Lack of knowledge and awareness in the general population as in health care settings may enhance the propagation of these diseases. We aimed at determining the prevalence of HBV and HCV in Ebola survivors and health care workers (HCWs) of the Makeni town in Sierra Leone. We conducted a cross-sectional study during the last 2013-2016 Ebola outbreak in Makeni among Ebola survivors (N = 68) and 81 Health care workers from Holy Spirit hospital and Loreto clinic, two health care facilities in Makeni district. Serological markers of HBV (HBs Ag, anti-HBs Ab and anti-HBc Ab) and anti-HCV antibodies detection were done using ELISA techniques. The positive detection rates for HBs Ag, anti-HBs Ab and anti-HBc antibodies in Ebola survivors were 23.53% (16/68), 32.35% (22/68) and 88.89% (16/18) respectively. Survivors with a current HBV infection had a positive rate of 38.89% (7/18) and 16.66% (3/18) of them were considered immune due to past HBV infection. HCV prevalence was 26.47% (18/68) and about 10.29% (7/68) were HBV/HCV co-infected. The positive detection rates of HBsAg, anti-HBs Ab and anti-HBc Ab were 37.07% (30/81), 33.33% (27/81) and 30.86% (25/81) respectively in health care workers. We observed that 4.94% (4/81) of the HCWs were currently infected with HBV. Participants considered as immune due to past infection represented 23.47% (19/81) and those immune due to vaccination represented 2.47% (2/81). The prevalence of HCV infection among health staff was 2.47% (2/81) with 1.23% (1/81) being HBV/HCV co-infection. Our findings showed that viral hepatitis infection is a burden for Sierra Leone government. There is an urgent need to develop and implement strategies that could improve population immunization against HBV and vulgarization of HCV treatment programs.

关键词： Viral Hepatitis B and C Ebola Survivors Health Care Workers

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Organizational ambidexterity, open innovation and innovation outputs: How do followers and low-flyer EU countries innovate?

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international Journal of Innovation Studies 2024年第2期8卷 186-235页

作者： Joao Leitao Sonia de Brito Dina Pereira Faculty of Social and Human Sciences NECE-Research Unit in Business SciencesUniversity of Beira Interior6200-001CovilhaPortugal research Unit in Business Sciences(NECE) University of Beira InteriorCovilhaPortugal centre for management Studies of Instituto Superior Tecnico(CEG-IST) University of Lisbon1649-004LisboaPortugal Instituto de Ciencias Sociais ICsUniversity of Lisbon1649-004LisboaPortugal

This study analyses the role played by organizational ambidexterity and open innovation in innovation outputs,considering business units with different levels of technological intensity(medium-high and high tech,and medium-low and low tech)for countries with different inno-vation *** countries considered in this paper are i)Estonia and Slovenia as innovation followers;i)Slovakia,Hungary,Spain,Czech Republic,Italy,Portugal,Norway,and Croatia as moderate innovators;and ii)Bulgaria,Lithuania and Romania as modest *** the empirical approach,the research hypotheses arise from the literature review and are tested using secondary data collected from the Community Innovation Survey(CIS)*** conceptual model is tested using the logistic regression method,which indicates suitable accuracy and reliability for empirical testing *** evidence reveals that for innovation followers,ambidexterity has a greater influence on the practice of eco-innovation,marketing innovation,and product *** moderate innovators,ambidexterity has a greater influence on the practice of product innovation,process innovation,and *** modest in-novators,ambidexterity has a greater influence on the practice of product innovation,process innovation,and *** regard to open innovation,for innovation followers,this has a negative influence on product innovation in medium-high and high-tech *** moderate innovators,open innovation has a greater influence in process,organizational,and *** the case of modest innovators,open innovation is more significant for innovation outputs in product,organizational,and marketing *** is not always positively related to innovation outputs.

关键词： Organizational ambidexterity CIS Cooperation Open innovation Public innovation policies

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Mother to Child Transmission of hiv after Option B+ in Low Income Environment

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Open Journal of Obstetrics and Gynecology 2018年第12期8卷 1163-1175页

作者： Mve Koh Valère Kamgaing Nelly Nda Mefo Foumane Pascal Faculty of Medicine and Biomedical Sciences of University of Yaoundé I Yaoundé Cameroon University Teaching Hospital of Yaoundé Yaoundé Cameroon chantal biya international reference Center for research on prevention and management of hiv Yaounde Cameroon Faculty of Medicine and Pharmaceutical Sciences of the University of Douala Douala Cameroon General Hospital of Douala Douala Cameroon Gynecological Obstetrics and Pediatric Hospital Yaoundé Yaoundé Cameroon

Background: In Cameroon, the prevalence of hiv in pregnant women was 7.8% in 2012, and they were 8500 hiv positive newborns in 2013. Option B+ is the first highly active antiretroviral therapy (HAART) preventive protocol. The objective was to evaluate the rate of hiv transmission on children born from mothers who were on Option B+ during pregnancy, in three university teaching hospitals of the University of Yaoundé I. Methods: It was a retrospective, cross-sectional study over a period of four years (2013-2017). We included hiv positive mothers not on previous antiretroviral treatment and who received a single tablet daily of combined tenofovir (300 mg) + Lamivudine (300 mg) + Efavirenz (600 mg) started at any time during pregnancy. Newborn received nevirapine syrup according to WHO option B+ protocol. Results: 179 women were included. The average age was 33.5 ± 2.92 years, all ages were represented. Blood donation was the most frequent hiv positive screening opportunity, voluntary testing rate was 29% (29/179), and adherence rate was 98.9%. Few male partners were involved (58/179). Premature deliveries and low birth weight were rare (5/179;10/179)), the indication of mode of delivery was strictly obstetrical, newborn feeding choice didn’t affect the transmission outcome, and the mother to child transmission rate was 2.2% (4/179). Conclusion: Option B+ could achieve the lowest mother to child transmission ever in Cameroon and should be generalized in high endemicity low resources settings.

关键词： Option B+ University of Yaoundé I Cross Sectional

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Breast Cancer Survival in Cameroon: Analysis of a Cohort of 404 Patients at the YaoundéGeneral Hospital

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Advances in Breast Cancer research 2015年第2期4卷 44-52页

作者： Jean Dupont Kemfang Ngowa Jean Marie Kasia Jean Yomi Achille Nkigoum Nana Anny Ngassam Irenée Domkam Zacharie Sando Paul Ndom Department of Gynecology and Obstetrics Yaoundé General Hospital Faculty of Medicine and Biomedical Sciences University of Yaounde I Yaoundé Cameroon Department of Radiation Therapy Yaoundé General Hospital Faculty of Medicine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon chantal biya international reference centre for research on hiv/aids prevention and management Yaoundé Cameroon Department of Morphological Sciences Yaoundé General Hospital Faculty of Medicine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon Oncology Division Yaoundé General Hospital Yaoundé Cameroon

This study aimed to estimate the survival rate of breast cancer in a group of patients followed up at the Yaoundé General Hospital in Cameroon. A retrospective review of records of patients managed for breast cancer between 1995 and 2007 was carried out at the Yaoundé General Hospital. Survival analysis was carried out with survival defined as the time between the date of unequivocal diagnosis of cancer and the date of last follow-up or death. Survival curves were plotted in R.3.1.1 software. Mean age of the patients was 47.5 ± 12.36 years. Most of the patients (67.9%) presented with advanced breast cancer disease (stage III and IV). Overall patient survival rate was 30% at 5 years and 13.2% at 10 years. Median overall survival time was 2 (1.9 - 3) years. There was a correlation between survival and the stage of disease. The highest survival rates were recorded in stages I and II while the lowest rates were recorded in stage IV. There was no statistically significant difference in survival among the age groups (p = 0.15). Overall survival rates of breast cancer are 30% at 5 years and 13.2% at 10 years among Cameroonian patients and are lower compared with 90% and 82% respectively at 5 years and 10 years in some developed countries.

关键词： Survival Breast Cancer Developing Countries

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意大利语版护理管理者胜任力测评工具的信效度检验

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international Journal of Nursing Sciences 2024年第3期11卷 338-348页

作者： Dhurata Ivziku Lucia Filomeno Daniela Forte Rosario Caruso Gianluca Conte Arianna Magon Raffaella Gualandi Marco Di Muzio Daniela Tartaglini Department of Health Professions Fondazione Policlinico Universitario Campus Bio-MedicoRomeItaly Department of Biomedicine and prevention University of Rome Tor VergataRomeItaly Health Professions research and Development Unit IRCCS San Donato HospitalMilanItaly Department of Biomedical Sciences for Health University of MilanMilanItaly Department of Clinical and Molecular Medicine Sapienza UniversityRomeItaly Vice President Italian Society for the Direction and management in Nursing(SIDMI) RomeItaly

目的旨在翻译Chase护理管理者胜任力测评工具(the Chase Nurse Manager Competency Instrument,CNMCI)为意大利语,并对其进行信度和效度检验。方法对英文版CNMCI进行翻译,并通过横断面研究验证其信效度。采用预翻译(建立等效)、初始翻... 详细信息

目的旨在翻译Chase护理管理者胜任力测评工具(the Chase Nurse Manager Competency Instrument,CNMCI)为意大利语,并对其进行信度和效度检验。方法对英文版CNMCI进行翻译,并通过横断面研究验证其信效度。采用预翻译(建立等效)、初始翻译、预测试、审查和管理5个步骤的问卷翻译方法,将英文版工具翻译为意大利语版。于2022年8月到2023年6月,选取意大利3个地区31所医疗机构349名护理管理者进行调查。采用内容效度、结构效度评估工具的效度;采用Cronbach'sα系数、重测信度评估工具的信度。结果意大利语版CNMCI,包括“知识理解”和“实施和/或使用能力”两个分量表,每个分量表包括53个条目。工具的条目内容效度指数(I-CVI)为0.83~1.00,两个分量表的内容效度指数(S-CVI)均为0.97。经验证性因子分析显示该工具各项拟合指数表现良好。工具中“知识理解”分量表的Cronbach'sα系数为0.978,“实施和/或使用能力”分量表的Cronbach'sα系数为0.976。各个维度之间的相关系数为0.494~0.908重测信度为0.820,表明工具的一致性较好。结论意大利语版CNMCI在测量护理管理者胜任力方面显示出良好的信度和效度,并支持该工具的多维度结构。此外,研究结果支持了这些因素的层次性质,进一步支持了该工具的有效性。

关键词：胜任力护理管理者信度调查及问卷效度

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Immunoglobulin G Specific Antibody Level against Ebola Viral Glycoprotein and Nucleoprotein in Ebola Virus Disease Survivors and Their Relatives

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Journal of Biosciences and Medicines 2021年第4期9卷 179-196页

作者： Nadège Goumkwa Mafopa Raoul Emeric Guetiya Wadoum Marta Giovanetti Antonella Minutolo Béatrice Dambaya Claude Kwe Yinda Gianluca Russo Georges Teto Georgia Ambada Patrick Turay Judith Torimiro Alexis Ndjolo Jules Roger Kuate Vittorio Colizzi Carla Montesano chantal biya international reference centre for research on hiv/aids prevention and management Yaoundé Cameroon University of Roma “Tor Vergata” Rome Italy Department of Biochemistry University of Dschang Dschang Cameroon Departement of Public Health University of Makeni Makeni Sierra Leone National Institute of Health—ISS Rome Italy Faculty of Science University of Yaoundé I Yaoundé Cameroon Intramural research Program National Institute of Health Bethesda Maryland USA University di Roma “Sapienza” Rome Italy Holy Spirit Hospital Makeni Makeni Sierra Leone Faculty of Medicine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon

Ebola virus disease is a complex zoonosis that is highly virulent in humans. Despite its sorely pathogenic and lethal nature, survivors of this infection and even asymptomatic cases are able to develop both humoral and cellular immunity against several Ebola virus (EBOV) proteins. We aimed at determining immunoglobulin G (IgG) antibodies level against two Ebola viral antigens, the glycoprotein and the nucleoprotein in Ebola survivors and their relatives. Anti-EBOV glycoprotein (GP) and nucleoprotein (NP) IgG antibodies were quantified using ELISA. We enrolled 199 participants in two different sites as follow: 91 survivors at the Loreto clinic and 70 survivors with 38 relatives of Sierra Leone Association of Ebola Survivors Bombali Branch (SLAESB) tested for anti-EBOV NP and anti-EBOV GP IgG antibodies. Our findings revealed that the median anti-EBOV IgG level among survivors was 5.7128 U/ml [IQR: 2.793 - 7.783] for anti-EBOV GP IgG and 4.431 U/ml [IQR: 2.083 - 7.696] for anti-EBOV NP IgG. Survivors relatives had a median anti-EBOV GP IgG level of ?0.7128 U/ml [IQR: -0.903 to -0.04327] and -2.711 U/ml [IQR: -4.01 to -1.918] for anti-EBOV NP IgG. We observed that IgG levels in survivors were higher than in relatives with a significant difference of about 0.0001. The median value of anti-EBOV IgG level among seropositive relatives was 0.7043 U/ml [IQR: 0.5686 to 3.716] for anti-EBOV GP IgG and 4.05 U/ml [IQR: 0.2765 to 7.759] for anti-EBOV NP IgG respectively. Interestingly, we observed that 3.30% of Loreto clinic survivors did not developed anti-EBOV NP IgG antibodies;also about 10% survivors of the SLAESB were not reactive to anti-EBOV NP IgG and 1.43% of these survivors did not express antibodies against the Ebola viral glycoprotein. Our work is consistent with previous published studies showing heterogeneity in both survivors and asymptomatic cases of Ebola infection developing adaptive immunity against EBOV proteins.

关键词： Immunoglobulin IgG Level Ebola Survivors and Relatives Glycoprotein and Nucleoprotein

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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

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A retrospective cohort study of body mass index and survival in hiv infected patients with and without TB co-infection

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Infectious Diseases of Poverty 2018年第1期7卷 349-354页

作者： Kogieleum Naidoo Nonhlanhla Yende-Zuma Stanton Augustine centre for the aids Programme of research in South Africa(CAPRISA) Nelson R Mandela School of MedicineUniversity of KwaZulu-Natal2nd Floor Doris Duke Medical Research InstitutePrivate Bag X7DurbanCongella 4013South Africa MRC-CAPRISA hiv-TB Pathogenesis and Treatment research Unit Doris Duke Medical Research InstituteUniversity of KwaZulu-NatalDurbanSouth Africa

Background:High early morbidity and mortality following antiretroviral therapy(ART)initiation has been a distinguishing feature of ART programmes in resource limited settings(RLS)compared to high-income *** study assessed how well body mass index(BMI:kg/m^(2))correlated with survival among hiv infected patients with and without TB ***:We retrospectively evaluated clinical data from 1000 hiv infected patients,among whom 389 were also co-infected with TB,between January 2008 and December 2010,in KwaZulu-Natal,South ***:Among 948 patients eligible for analysis,15.7%(149/948)were underweight(hiv infected *** registration:UKZN Biomedical research Ethics Committee reference number E 248/05,23 September 2005.

关键词： hiv Tuberculosis BMI ART Africa KwaZulu-Natal KZN South Africa

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Recognizing and monitoring infectious sources of schistosomiasis by developing deep learning models with high-resolution remote sensing images

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Infectious Diseases of Poverty 2023年第1期12卷 24-35页

作者： Jing-Bo Xue Shang Xia Xin-Yi Wang Lu-Lu Huang Liang-Yu Huang Yu-Wan Hao Li-Juan Zhang Shi-Zhu Li National Institute of Parasitic Diseases Chinese Center for Disease Control and Prevention(Chinese Center for Tropical Diseases Research)NHC Key Laboratory of Parasite and Vector BiologyWHO Collaborating Centre for Tropical DiseasesNational Center for International Research On Tropical DiseasesShanghai 200025China School of Global Health Chinese Center for Tropical Diseases ResearchShanghai Jiao Tong University School of MedicineShanghai 200025China

Background China is progressing towards the goal of schistosomiasis elimination,but there are still some problems,such as difficult management of infection source and snail *** study aimed to develop deep learning models with high-resolution remote sensing images for recognizing and monitoring livestock bovine,which is an intermediate source of Schistosoma japonicum infection,and to evaluate the effectiveness of the models for real-world *** The dataset of livestock bovine’s spatial distribution was collected from the Chinese National Platform for Common Geospatial Information *** high-resolution remote sensing images were further divided into training data,test data,and validation data for model *** recognition models based on deep learning methods(ENVINet5 and Mask R-CNN)were developed with reference to the training *** performance of the developed models was evaluated by the performance metrics of precision,recall,and *** A total of 50 typical image areas were selected,1125 bovine objectives were labeled by the ENVINet5 model and 1277 bovine objectives were labeled by the Mask R-CNN *** the ENVINet5 model,a total of 1598 records of bovine distribution were *** model precision and recall were 81.9%and 80.2%,*** F1 score was *** the Mask R-CNN mode,1679 records of bovine objectives were *** model precision and recall were 87.3%and 85.2%,*** F1 score was *** applying the developed models to real-world schistosomiasis-endemic regions,there were 63 bovine objectives in the original image,53 records were extracted using the ENVINet5 model,and 57 records were extracted using the Mask R-CNN *** successful recognition ratios were 84.1%and 90.5%for the respectively developed *** The ENVINet5 model is very feasible when the bovine distribution is low in structure with few *** Mask R-CNN model has a good framework de

关键词： Deep learning High-resolution remote sensing Recognizing Monitoring Infectious source Schistosomiasis

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