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Essentials of Bedside Cardiology SECOND EDITION 2nd ed.

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2003年

作者： jules constant

来源：畅想之星图书光盘版（南... 评论

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畅想之星图书光盘版（南通市图书馆镜像）

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Performance and Trends in Measles Case-Based Surveillance in the North West Region of Cameroon, 2009 to 2015

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Journal of Biosciences and Medicines 2022年第6期10卷 37-55页

作者： Wasu Chrispus Nchandone Ginette Claude Mireille Kalla Njamnshi Alfred Kongnyu Same Ekobo Albert Assob Nguedia jules Clement Department of Public Health and Hygiene Faculty of Health Sciences University of Buea Buea Cameroon Regional Technical Group for the Expanded Programme on Immunization RTG-EPI Regional Delegation of Public Health for the North West Region of Cameroon Bamenda Cameroon Department of Paediatrics Faculty of Medicine and Biomedical Science University of Yaounde I Yaounde Cameroon Department of Neurology Central Hospital of Yaounde Yaounde Cameroon Faculty of Medicine and Biomedical Sciences University of Yaounde 1 Yaounde Cameroon Faculty of Medicine and Pharmaceutical Sciences University of Douala Douala Cameroon

Background: Measles is a highly contagious viral disease associated with high morbidity and mortality in developing countries. As an infection with no specific treatment, its control is most importantly through vaccination and adequate disease surveillance. National immunization coverage for the first dose of measles/rubella vaccine in 2019 was 71%. As a result, measles continues to rage with outbreaks not sparing the North West Region (NWR) of Cameroon, hence the need for proper surveillance. Objective: Assess performance of measles case-based surveillance in the NWR of Cameroon. Methods: This was a cross-sectional, descriptive study with retrospective collection of measles surveillance records carried out at the Regional Delegation of Public Health from 2009 to 2015. The data collected using a structured form were: number of persons suspected of measles;number of persons reported to district service;number of persons whose samples were collected and forwarded to the laboratory;number whose results reached the Expanded Programme on Immunization (EPI) Central unit and the time lapse between successive phases. Results: Although not all planned activities were carried out, a constant increase in planned and carried out monitoring activities was found. The average time taken from onset of signs and symptoms in a measles case to consultation at a health facility, from consultation to notification of case to district service, from notification to investigation, from investigation to receipt of biological sample at laboratory, from receipt of sample to provision of results to the EPI Central unit, and from collection of sample to reception of results at the Central EPI unit was 2.59 days, 1.5 days, 1.5 days, 2.6 days, 4 days and 6.6 days respectively. Conclusion: There was an overall rising trend in the performance of measles case-based surveillance, although the high priority site visits witnessed a stagnation during the period, a large scale measles epidemic occurred (2

关键词： Measles Case-Based Surveillance Performance Trends

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Estimation of Hydraulic Conductivity of Soils at a Watershed-Scale Using Porchet’s Method: Application in the Olezoa Waterhed, Yaounde, Cameroon

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International Journal of Geosciences 2016年第3期7卷 397-408页

作者： André Firmin Bon Auguste Ombolo Guillaume Ewodo Mboudou jules Rémy Ndam Ngoupayou Georges Emmanuel Ekodeck Department of Climatology Hydrology and Soil Science Higher Institute of the Sahel University of Maroua Maroua Cameroon Department of Earth Sciences Faculty of Science University of Yaounde I Yaounde Cameroon Department of Hydraulics and Water Control Higher Institute of the Sahel University of Maroua Maroua Cameroon

Contamination analysis of the unsaturated zone requires information on the spatial variability of hydraulic conductivity. Two types of hydraulic tests (variable and constant charge) were identified to estimate the spatial variability of the hydraulic conductivity of the surface portion of the unsaturated zone in the Olezoa watershed. These tests were performed on 100 holes at depths ranging between 50 and 90 cm, spread throughout the watershed. The hydraulic conductivity values obtained at 50 and 90 cm are close to the absolute value for each method. However, they show a difference of 10-1 m/s between the two types of test regardless of the depth of investigation. The representation of data in the graph indicates a staircase quartile distribution for the variable charge test. The test at constant charge, rather presents a log normal distribution which is also supported by the Kolmogorov-Smirnov test. Hydraulic conductivities have a random component and a spatial organization which results from soil and/or morphological factors. This organization thus permits the distinction of zones which could show high pollution risk.

关键词： Unsaturated Zone Quartile Graphs Hydraulic Conductivity Olezoa

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