检索结果-南通市图书馆

Determinates of Childhood Pneumonia and Diarrhea with Special Emphasis to Exclusive Breastfeeding in North Achefer District, Northwest Ethiopia: A Case Control Study

引用

Open Journal of Epidemiology 2015年第2期5卷 107-112页

作者： Molla Gedefaw resom berhe GAMBY College of Medical Science Bahir Dar Ethiopia Health Education and Behavioral Sciences Unit Institute of Public Health University of Gondar Gondar Ethiopia

Studies showed that exclusive breast feeding reduced infant morbidity and mortality. In low income countries such as Ethiopia where under-five mortality is very high, the role of exclusively breastfeeding could be even more critical. However, studies assessing the place of exclusive breast freeing in the prevention of childhood illnesses in our area are scarce. The aim of the study was to identify determinant factors of childhood pneumonia and diarrhoea. An institution based case control study was conducted in Achefer District in July, 2012. The cases were 122 children of 7 - 24 months old who had repeated attack of diarrhoea or pneumonia over three months prior to the survey while controls were 122 children who visited well baby clinic for vaccination. Data were collected by using pre-tested and structured questionnaire, and analysed using SPSS version 16 for windows. Logistic regression was performed, and strength of associations was estimated using odds ratio and 95% confidence interval. About 83% of the controls and only 12.3% of the cases were exclusively breast fed. Children who were exclusively breast fed were 83 times less likely to develop pneumonia or diarrhea than those who were not exclusively fed. Marital status, monthly income, prelacteal feeding, and late initiation of breast feeding were found to have statistically significant association with childhood diarrhea and pneumonia. This study brought local evidence that exclusive breast feeding had a protective effect against common childhood infectious diseases—pneumonia and diarrhoea—in the study area. Therefore, culture sensitive and plausible health education is recommended to strengthen exclusive breast feeding practices in order to decrease mortality and morbidity of infants and children from pneumonia and diarrhoea.

关键词： Exclusive Breast Feeding Determinant Factors Childhood Pneumonia Diarrhea Ethiopia

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Current Status, and Correlates of Abortion among Rural Women of Gonji Kollela District, Northwest Ethiopia

引用

Open Journal of Epidemiology 2015年第2期5卷 136-146页

作者： Girum Meseret Molla Gedefaw resom berhe Adane Nigusie Department of Public Health Gonji Kolella Health Office West Gojjam Amhara Region Ethiopia GAMBY College of Medical Sciences Bahir Dar Ethiopia Health Education Unit Institute of Public Health College of Medicine and Health Science University of Gonder Gonder Ethiopia

Background: Evidences indicate that unsafe abortion is one of the most important causes of maternal mortality in Ethiopia. Ethiopia strives to curb maternal mortality. Hence, current data on abortion, and its correlates are required. Objective: To assess the prevalence and associated factors of abortion among women of reproductive age (15 - 49 years) in rural kebeles of Gonji Kolela District. Methods: A community based cross-sectional study was conducted among randomly selected 611 women in six rural kebeles of Gonji Kolela District, Northwest Ethiopia. A structured pre-tested questionnaire was used to collect data on socio-demographic and obstetric histories. The data were checked for completeness and cross-checked for accuracy and consistency. Result: The overall prevalence of abortion was 12% (10.9% spontaneous and 1.1% induced). Of these, 12.3% of them had experienced abortion more than once. Most of abortion took place at home, no medical care. The most important predictor of abortion was educational status. Those women whose educational attainment was primary and above were 2.4 times more likely to experience abortion than those who were not able to read and write (AOR [95%CI] = 2.4 [1.13 - 5.10]). Most women attributed abortion to work overload. Conclusion: Abortion is high among rural women. Recommendation: Mechanism should be devised to educate the community about care to pregnant women. Why abortion is high among women who have visited school warrants further research.

关键词： Unsafe Abortion Family Planning North West Ethiopia

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Parkland trees on smallholder farms ameliorate soil physical-chemical properties in the semi-arid area of Tigray,Ethiopia

引用

Journal of Arid Land 2024年第1期16卷 1-13页

作者： Selam LJALEM Emiru BIRHANE Kassa TEKA Daniel H berhe Department of Land Resources Management and Environmental Protection College of Dryland Agriculture and Natural ResourcesMekelle UniversityMekelle 231Ethiopia Institute of Climate and Society Mekelle UniversityMekelle 231Ethiopia Faculty of Environmental Sciences and Natural Resource Management Norwegian University of Life Sciences(NMBU)Ås 1432Norway Department of Natural Resources Management Adigrat UniversityAdigrat 50Ethiopia

Proposed agroforestry options should begin with the species that farmers are most familiar with,which would be the native multipurpose trees that have evolved under smallholder farms and socioeconomic *** African birch(Anogeissus leiocarpa(DC.)Guill.&Perr.)and pink jacaranda(Stereospermum kunthianum Cham.)trees are the dominant species in the agroforestry parkland system in the drylands of Tigray,*** farmers highly value these trees for their multifunctional uses including timber,firewood,charcoal,medicine,*** trees also could improve soil ***,the amount of soil physical and chemical properties enhanced by the two species must be determined to maintain the sustainable conservation of the species in the parklands and to scale up to similar agroecological ***,we selected twelve isolated trees,six from each species that had similar dendrometric characteristics and were growing in similar environmental *** divided the canopy cover of each tree into three radial distances:mid-canopy,canopy edge,and canopy gap(control).At each distance,we took soil samples from three different *** collected 216 soil samples(half disturbed and the other half undisturbed)from each canopy position and soil *** density(BD),soil moisture content(SMC),soil organic carbon(SOC),total nitrogen(TN),available phosphorus(AP),available potassium(AK),p H,electrical conductivity(EC),and cation exchange capacity(CEC)were *** revealed that soil physical and chemical properties significantly improved except for soil texture and EC under both species,CEC under ***,and soil p H under ***,all the studied soils were improved under both species canopy as compared with canopy ***,TN,AP,and AK under canopy of these trees were respectively 24.1%,11.1%,55.0%,and 9.3% higher than those soils under *** two parkland agroforestry species significantly enhanced soil fertility near the canopy of top

关键词： agroforestry bulk density carbon stock dispersed tree soil texture tree canopy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Applications for Groundwater Problem Solving in East Africa: Calorimetric, Titrimetric, and Electronic Approaches

Applications for Groundwater Problem Solving in East Africa:...

引用

作者： Naod Belay berhe 湖南大学

学位级别：硕士

确保清洁水的供应对人类和环境健康都是至关重要的。本论文论述了使用电子、量热和滴定技术进行水质测试的方法。由于人口快速增长、污染和环境恶化,东非的水质问题日益受到关注。东非清洁和安全的地下水资源的匮乏是一个长期存在的问... 详细信息

确保清洁水的供应对人类和环境健康都是至关重要的。本论文论述了使用电子、量热和滴定技术进行水质测试的方法。由于人口快速增长、污染和环境恶化,东非的水质问题日益受到关注。东非清洁和安全的地下水资源的匮乏是一个长期存在的问题。因此,该地区的社会经济发展和公共健康受到了极大的挑战。本论文旨在探索和评估量热法、滴定法和电子法在解决东非地下水问题上的潜力。讨论了地下水污染、过度开采和枯竭的问题。该研究首先对东非的地下水资源进行了全面回顾。该地区有很多挑战,包括气候多变性、人口增长和水基础设施不足。之后,论文研究了三种分析技术:量热法、滴定法和电子法。它强调了它们在地下水分析和管理中的原理、优势和局限性。同时评估这种技术在东非水质测试中的有效性。电子技术利用先进的传感器和数字平台来识别水中的污染物。这种系统易于使用,便于携带,并能提供实时结果。滴定技术利用体积测量,一般用于测量酸度、碱度和总硬度。这种方法还探索了量化水样中存在的各种离子和元素的能力。量热技术在污染物存在时测量水样中的能量变化,并能在检测各种类型和水平的污染方面提供快速结果,还讨论了它们在确定地下水的化学成分和污染水平方面的潜力。论文还介绍了几个来自东非的案例研究,这些技术已被成功应用于解决与地下水有关的问题。通过这些案例研究,评估了所提出的方法在解决水资源挑战方面的有效性。这项研究还旨在通过实验发现,电子技术,如PH值和浊度传感器在实时检测水的物理特性方面很有用。然而,这些技术需要大量的投资和维护费用,而且在检测水中的化学污染物方面并不总是准确的,尽管它们需要更多的实验室设置和手工工作。

关键词：洁净水量热仪滴定仪电子方法

来源：

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Alternative beneficiation of tantalite and removal of radioactive oxides from Ethiopian Kenticha pegmatite–spodumene ores

引用

International Journal of Minerals,Metallurgy and Materials 2017年第7期24卷 727-735页

作者： berhe Goitom Gebreyohannes Velázquez del Rosario Alberto Abubeker Yimam Girma Woldetinsae Bogale Tadesse School of Materials Science and Engineering Jimma Institute of Technology Jimma University P.O. Box 378 Jimma Ethiopia Chemistry Department College of Natural and Computational Science Mekelle University P.O. Box 823 Mekelle Ethiopia School of Chemical and Bio Engineering AAiT Addis Ababa University P.O. Box 1176 Addis Ababa Ethiopia Research and Development Directorate Federal Democratic Republic of Ethiopia Ministry of Mines Petroleum and Natural Gas P.O. Box 486 Addis Ababa Ethiopia Department of Mining Engineering and Metallurgical Engineering Western Australian School of Mines Curtin University Egan St Kalgoorlie WA 6430 Australia

The beneficiation methods for Ethiopian Kenticha pegmatite–spodumene ores were assessed through mineralogical and quantitative analyses with X-ray diffraction（XRD） and energy-dispersive X-ray fluorescence（EDXRF）. The tantalite in the upper zone of the Kenticha pegmatite–spodumene deposit is 58.7wt% higher than that in the inner zone. XRD analysis revealed that the upper zone is dominated by manganocolumbite, whereas the inner zone is predominantly tantalite-Mn. Repeated cleaning and beneficiation of the upper-zone ore resulted in concentrate compositions of 57.34wt% of Ta_2O_5 and 5.41wt% of Nb_2O_5. Washing the tantalite concentrates using 1vol% KOH and 1 M H_2SO_4 led to the removal of thorium and uranium radioactive oxides from the concentrate. The findings of this study suggest that the beneficiation and alkaline washing of Kenticha pegmatite–spodumene ores produce a high-grade export-quality tantalite concentrate with negligible radioactive oxides.

关键词： beneficiation manganocolumbite pegmatite-spodumene radioactive oxides tantalite

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of China’s technology spillovers on energy intensity in Africa

引用

Chinese Journal of Population,Resources and Environment 2022年第2期20卷 168-176页

作者： Mesfin Welderufael berhe Junbing Huang Abel Dula Wedajo School of Economics Southwestern University of Finance and EconomicsChengdu611130China School of Business Administration Southwestern University of Finance and EconomicsChengdu611130China

Empirical studies on the effects of China-African economic relations on energy intensity in Africa are *** fill the gap in the literature,this study investigates the technology spillover effects of the China-Africa trade and investment relations on energy *** uses both linear and nonlinear dynamic panel estimation methods for 42 African countries from 2003 to *** results show that China's technology spillover through imports significantly reduces energy intensity in *** findings are consistent across specifications and sample ***,the technology spillover coming from foreign direct investment(FDI)improves energy intensity,particularly in lower-middle-income African *** dynamic threshold estimation results show that countries'absorptive ability is important for technology spillover effects of FDI and imports on energy *** results suggest that countries'absorptive capacity should be increased to maximize the benefits of trade and investment technology spillovers.

关键词： Energy intensity Technology spillovers FDI Trade and Dynamic panel model

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Strong coupling and catenary field enhancement in the hybrid plasmonic metamaterial cavity and TMDC monolayers

引用

Opto-Electronic Advances 2024年第5期7卷 20-32页

作者： Andergachew Mekonnen berhe Khalil As’ham Ibrahim Al-Ani Haroldo T.Hattori Andrey E.Miroshnichenko School of Engineering and Technology University of New South Wales at CanberraNorthcott DriveCanberra ACT 2610Australia

Strong coupling between resonantly matched surface plasmons of metals and excitons of quantum emitters results in the formation of new plasmon-exciton hybridized energy *** plasmon-exciton strong coupling,plasmonic nanocavities play a significant role due to their ability to confine light in an ultrasmall ***,two-dimensional transition metal dichalcogenides(TMDCs) have a significant exciton binding energy and remain stable at ambient conditions,making them an excellent alternative for investigating light-matter *** a result,strong plasmon-exciton coupling has been reported by introducing a single metallic ***,single nanoparticles have lower spatial confinement of electromagnetic fields and limited tunability to match the excitonic ***,we introduce the concept of catenary-shaped optical fields induced by plasmonic metamaterial cavities to scale the strength of plasmon-exciton *** demonstrated plasmon modes of metallic metamaterial cavities offer high confinement and tunability and can match with the excitons of TMDCs to exhibit a strong coupling regime by tuning either the size of the cavity gap or *** calculated Rabi splitting of Au-MoSe_2 and Au-WSe_2 heterostructures strongly depends on the catenary-like field enhancement induced by the Au cavity,resulting in room-temperature Rabi splitting ranging between 77.86 and 320 me *** plasmonic metamaterial cavities can pave the way for manipulating excitons in TMDCs and operating active nanophotonic devices at ambient temperature.

关键词： catenary-shaped field enhancement strong coupling plasmon exciton Rabi splitting

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Large scale genetic landscape and population structure of Ethiopian sesame (Sesamum indicum L.) germplasm revealed through molecular marker analysis

引用

Oil Crop Science 2023年第4期8卷 266-277页

作者： Muez berhe Jun You Komivi Dossa Fetien Abay Abera Emmanuel Amponsah Adjei Yanxin Zhang Linhai Wang Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences Key Laboratory of Biology and Genetic Improvement of Oil CropsMinistry of Agricultureand Rural AfairsNo.2 Xudong 2nd RoadWuhan430062China Tigray Agricultural Research Institute Humera Agricultural Research CenterP.O.Box 62TigrayEthiopia CIRAD UMR AGAP Institut97170 Petit BourgGuadeloupeFrance Department of Dryland Crop and Horticultural Sciences College of Dryland Agriculture and Natural ResourcesMekelle UniversityMekelleTigrayEthiopia University of California Davis Department of Plant Sciences MS/11 Shields AveDavisCA95616USA CSIR-Savanna Agriculture Research Institute P.O.Box TL52TamaleGhana UMR AGAP Institut Univ MontpellierCIRADINRAEInstitut AgroF-34398 MontpellierFrance

Sesame(Sesamum indicum L.) plays a crucial role in Ethiopian agriculture,serving both subsistence and commercial ***,our understanding of the extensive genetic diversity and population structure of Ethiopian sesame remains *** address this knowledge gap,we genotyped 368 Ethiopian sesame germplasms,categorizing into four distinct breeding groups:Accessions,landraces,improved varieties,and wild types,using a comprehensive set of 28 polymorphic markers,including 23 simple sequence repeat(SSR) and five Insertion-Deletion(InDel) *** markers ensured robust genomic representation,with at least two markers per linkage *** results unveiled substantial genetic diversity,identifying a total of 535 alleles across all *** average,each locus displayed 8.83 alleles,with observed and expected heterozygosity values of 0.30 and 0.36,*** Diversity and Polymorphic Information Content(PIC) were recorded at 0.37 and *** percentage of polymorphic loci varied significantly among breeding groups,ranging from8.00% to 82.40%,indicating high diversity in accessions(82.4%),moderate diversity in improved varieties(31.20%) and landraces(29.60%),and limited diversity in wild types(8.00).Analysis of Molecular Variance(AMOVA) results emphasized significant genetic differentiation among populations,with substantial diversity(P<0.001) within each *** 8% of the entire genetic diversity could be attributed to distinctions among populations,while the larger proportion of genetic diversity(92%) resided within each individual sesame population,showcasing heightened diversity within each *** study’s findings received support from both Bayesian clustering and Neighbor-joining(NJ) analysis,reaffirming the credibility of our genetic structure ***,Population structure analysis at its highest Δk value(k=2) revealed the existence of two primary genetic clusters,further subdivided into four sub-populations at k

关键词： Alleles Conservation Genetic diversity Molecular markers Population structure

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Assessing the Awareness and Usage of Quality Control Tools with Emphasis to Statistical Process Control (SPC) in Ethiopian Manufacturing Industries

引用

Intelligent Information Management 2016年第6期8卷 143-169页

作者： Leakemariam berhe Tesfay Gidey Department of Statistics Addis Ababa Science and Technology University Addis Ababa Ethiopia

Introduction: The present work was devoted to assess the awareness and usage of quality control tools with the emphasis on statistical process control in Ethiopian manufacturing industries. Semi structured questionnaire has been employed to executive and technical managers of manufacturing industries of various size and specialism across the country. Stratified random sample method by region was used to select sample industries for the study. The samples used for this study are industries mainly from Oromiya, Addis Ababa, Tigray, Amara, SNNP and Diredawa regions proportional to their size of the available industries. Methods: Exploratory method and descriptive statistics was used for data analysis. Available documents and reports related to quality control policy of the selected companies were investigated. Results and Discussions: The number of manufacturing industries involved in this study was 44. Of the sampled manufacturing industries about 60% are from Oromiya and Addis Ababa regions. It has been reported that 100% of the respondents said that the importance of quality control tools is very important to their organizations’ productivity and quality improvement (Figure 3). Quality control professionals were also asked the extent to which quality control system is working in their industry and majority of the respondents (45%) have indicated that quality control system is working to some extent in their respective industries (Figure 18). Conclusions and Recommendations: Most of the quality department of the industries did not fully recognize the importance of statistical process control as quality control tools. This is mainly due to lack of awareness and motivation of the top managements, shortage of man power in the area, and others together would make it difficult to apply quality control tools in their organization. In general, the industries in Ethiopia are deficient in vigor and found to be stagnant hence less exposed to a highly competitive market and don

关键词： Quality Products Awareness Usage Statistical Process Control Ethiopia

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The Impact of COVID-19 and FAIR Data Innovation on Distance Education in Africa

引用

Data Intelligence 2022年第4期4卷 1013-1032,1037,1044,1048页

作者： Akinyinka Tosin Akindele Oladiran Tayo Arulogun Getu Tadele Taye Samson YohannesAmare Mirjam Van Reisen Kibrom Fekadu berhe Balyejusa Gusite Open and Distance Learning Center Ladoke Akintola University of TechnologyP.M.B 4000OgbomosoOyo stateNigeria Kampala International University 210214 KampalaUganda Mekelle University P.O.Box:1871 MekelleEthiopia Virus Outbreak Data Network-Africa and Asia P.O.Box:231 Tilburg University 1310the Netherlands

Prior to the advent of the COVID-19 pandemic, distance education, a mode of education that allows teaching and learning to occur beyond the walls of traditional classrooms using electronic media and online delivery practices, was not widely embraced as a credible alternative mode of delivering education, especially in Africa. In education, the pandemic, and the measures to contain it, created a need for virtual learning/teaching and showcased the potential of distance education. This article explores the potential of distance education with an emphasis on the role played by COVID-19, the technologies employed, and the benefits, as well as how data stewardship can enhance distance education. It also describes how distance education can make learning opportunities available to the less privileged, geographically displaced, dropouts, housewives, and even workers, enabling them to partake in education while being engaged in other productive aspects of life. A case study is provided on the Dutch Organisation for Internationalisation in Education(NUFFIC) Digital Innovation Skills Hub(DISH) project, which is implemented via distance education and targeted towards marginalised individuals such as refugees and displaced persons in Ethiopia,Somalia, and other conflict zones, aiming to provide them with critical and soft skills for remote work for financial remuneration. This case study shows that distance education is the way forward in education today, as it has the capability to reach millions of learners simultaneously, educating, lifting people out of poverty, and increasing productivity and yields, while ensuring that the world is a better place for future generations.

关键词： Distance education COVID-19 Learning management system Instructional design Open learning Online learning Data stewardship

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：