检索结果-南通市图书馆

Priority setting towards achieving underfive mortality target in Africa in context of sustainable development goals:an ordinary least squares(OLS)analysis

引用

Global Health Research and Policy 2019年第1期4卷 220-235页

作者： michael acheampong Chukwudi Ejiofor Abraham Salinas-Miranda Bryana Wall Qiuyan Yu Center for Urban Ecology and Sustainability Suffolk University8 Ashburton PlBostonMA 02108USA College of Public Health University of South Florida13201 Bruce B.Downs Blvd.MDC 56TampaFL 33612USA College of Communications and Journalism University of FloridaGainesvilleFL 32611USA School of Geosciences University of South Florida4202 E.Fowler AveTampaFL 33620USA

Background:Africa reduced its under-5 mortality rate(U5MR)by more than 50%during the MDGs ***,it still has by far the highest average U5MR in the world-81 deaths compared to a global average of 43 deaths per 1000 births,with eight of the ten countries in the world with the highest child mortality *** primary objective of our study was to examine the socioeconomic,healthcare,and environmental determinants that most account for U5MR disparities between African ***:We used a series of ordinary least squares(OLS)regression models to assess the effects of 14 distinct socioeconomic,environmental and healthcare variables that account for the high U5MR differentials that persist between African *** conducted our analysis on 43 countries for which data were *** a dummy variable,we also emphasized factors that may be accounting for the disparity between the eight worstperforming countries and the remainder of the ***:Among all the determinants analyzed in our study,the results reveal that the factors that most account for the inequities observed are,in order,expenditure on healthcare(p<0.01),total fertility rate(p<0.01),income per capita(p<0.05),and access to clean water(p<0.1).Conclusions:Our results show that the gap between the best and worst performing countries in Africa can be significantly narrowed if government and donor interventions will target downstream factors such as improving education for mothers and sensitising them about birth control since fertility rate differences play a critical *** accessibility to clean water sources to reduce outbreaks of diarrhea diseases is also observed as a critical factor.

关键词： Under-five mortality Sustainable development goals Africa Social determinants of health Health literacy

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 interaction effect of foreign capital inflows and financial development on economic welfare in sub-Saharan Africa

引用

Financial Innovation 2019年第1期5卷 455-487页

作者： Kwame acheampong Department of Economics and Statistics Garden City Business SchoolGarden City University CollegeKenyaseP.O.Box KS 15490KumasiGhana

This study examines the interaction effects of foreign capital inflows and financial development on economic welfare in sub-Saharan Africa(SSA).Estimates based on the system-GMM estimator using panel data on 23 SSA countries for 2000 to 2013 establish several ***,the interaction between foreign capital inflows and financial development positively affects economic welfare in ***,this effect was negative after one ***,the partial indirect effects of foreign capital inflows on economic welfare,conditional on the level of financial development,are positive,though they become negative after one ***,the total effect of foreign capital inflows on economic welfare is *** effect becomes negative after a year,though the predominant source of financial development is domestic *** consistency of these results indicates the importance of financial development in transmitting foreign capital to economic welfare *** the SSA’s financial sector to meet specific welfare-enhancing demands may potentially convert a large share of capital inflows into improved economic welfare and eliminate the negative effects.

关键词： Economic welfare enhancement Foreign direct investment Official creditors Domestic credit Money supply

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

Geometric Design of Letters in Times Roman Font via RBF Meshless Collocation Method

引用

Numerical Mathematics(Theory,Methods and Applications) 2023年第3期16卷 752-768页

作者： Lionel Amuzu C.S.Chen Kwesi acheampong Huiqing Zhu School of Mathematics and Natural Sciences University of Southern MississippiHattiesburgMSUSA

Two mathematical models in the context of boundary value problems are proposed for the geometric design of letters in Times Roman *** adopt radial basis function meshless collocation method for numerically solving the two proposed mathematical models in 2D and *** this paper,B´ezier curves play an important role in the design of the *** examples with simply and multiply-connected domains in 2D and 3D are presented to demonstrate the visual effect of the letters in Times Roman font.

关键词： Kansa method Bezier curve implicit surface computer graphics image reconstruction meshless method radial basis functions

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

A Review of the Current Task Offloading Algorithms,Strategies and Approach in Edge Computing Systems

引用

Computer Modeling in Engineering & Sciences 2023年第1期134卷 35-88页

作者： Abednego acheampong Yiwen Zhang Xiaolong Xu Daniel Appiah Kumah School of Computer Science and Technology Anhui UniversityHefei230039China School of Computer and Software Nanjing University of Information Science and TechnologyNanjing210044China

Task offloading is an important concept for edge computing and the Internet of Things(IoT)because computationintensive tasksmust beoffloaded tomore resource-powerful remote *** has several advantages,including increased battery life,lower latency,and better application performance.A task offloading method determines whether sections of the full application should be run locally or offloaded for execution *** offloading choice problem is influenced by several factors,including application properties,network conditions,hardware features,and mobility,influencing the offloading system’s operational *** study provides a thorough examination of current task offloading and resource allocation in edge computing,covering offloading strategies,algorithms,and factors that influence *** offloading and partial offloading strategies are the two types of offloading *** algorithms for task offloading and resource allocation are then categorized into two parts:machine learning algorithms and non-machine learning *** examine and elaborate on algorithms like Supervised Learning,Unsupervised Learning,and Reinforcement Learning(RL)under machine *** the non-machine learning algorithm,we elaborate on algorithms like non(convex)optimization,Lyapunov optimization,Game theory,Heuristic Algorithm,Dynamic Voltage Scaling,Gibbs Sampling,and Generalized Benders Decomposition(GBD).Finally,we highlight and discuss some research challenges and issues in edge computing.

关键词： Task offloading machine learning algorithm game theory dynamic voltage scaling

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

Recapitalization and Bank Performance:Evidence from Ghana

Recapitalization and Bank Performance:Evidence from Ghana

引用

作者： acheampong Addai 华南理工大学

学位级别：硕士

The purpose of this study is to examine the effect of recapitalization on the bank?s performance in the Ghanaian banking sector between 2006 and *** a panel data set of 25 banks with a robust fixed effect,random effect,and ordinary least squares,the findings on recapitalization in the Ghanaian banking industry is ***,we find significant difference in bank performance across the different recapitalization regimes where performance after the recapitalization *** implied that recapitalization partly contributed to the improved performance of ***,we find that recapitalization has both propelling and derailing effect on ***,while recapitalization propelled operational profitability performance（Net interest margins and Loan portfolio profitability）,recapitalization reduced financiers profitability（ROA）.Third,we find that recapitalization had varying effect given the ownership structure and the form or type of profitability under ***,while recapitalization reinforced operational profitability（NIM and LPP）for foreign,local,listed and unlisted banks,recapitalization at the same time dampened bank financiers? profitability（ROA and ROE）for foreign and listed banks,***,we established a nonlinear direct “U” shape effect which runs from recapitalization to the different bank performance *** these findings,we conclude that recapitalization should be healthy for the banking sector as continuous increment in the capital base enhanced operational *** is buttressed by the evidence from Ecobank?s case that recapitalization actually had positive effect on net interest margin（NIM）and returns on asset（ROA）.Also,there is the need for prudence on the side of banks and Bank of Ghana to ensure that the maximum benefits that come with the recapitalization regulation are fully ***,a high level of capitalization is prudent for recapitalization to have a desirable effec

关键词：

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

Construction of Pickering Emulsion-based Mt@g-C3N4/Fe3O4 Microcapsules for the Photocatalytic Adsorption of Uranium（Ⅵ） in Aqueous Solution

Construction of Pickering Emulsion-based Mt@g-C3N4/Fe3O4 Mic...

引用

作者： acheampong Edward Opong 西南科技大学

学位级别：硕士

水介质中环境污染物刺激响应微系统的构建因其仿生特性而得到了应有的重视。已经开发了不同的方法来制定这些系统,以满足系统的目的。在环境修复中,微系统是首选,特别是在水介质中进行处理时,由于其承受水力负荷的能力和稳定性。膜材料... 详细信息

水介质中环境污染物刺激响应微系统的构建因其仿生特性而得到了应有的重视。已经开发了不同的方法来制定这些系统,以满足系统的目的。在环境修复中,微系统是首选,特别是在水介质中进行处理时,由于其承受水力负荷的能力和稳定性。膜材料决定了微反应器系统的稳定性,因此小颗粒材料是首选。为此,粘土矿物,如蒙脱石,已应用于这方面的几个研究。微胶囊具有仿生功能和光响应特性,在环境修复中具有重要意义。这是因为它屏蔽了环境中的重要元素,在修复过程中,由干选择性渗透膜,同时利用光能加速化学反应过程,在整个修复过程中有机污染物的矿化作用。利用MMT、g-C3N4和Fe3O4构建了一个具有磁性的刺激响应型仿生微反应器系统。采用UV-vis-DRS、傅立叶变换红外光谱和光学显微镜对微胶囊的光学和化学性质进行了研究。光学显微镜图像显示微胶囊大小不一,这是由于手持均质机剪切不均匀所致。结果表明,当g-C3N4浓度由4mg/g增加到32mg/g时,单位重量吸附U(Ⅵ)量由109.6mg/g增加到153.54mg/g,g-C3N4浓度是决定U(Ⅵ)去除率的关键。pH5是微胶囊光催化吸附U(Ⅵ)的最佳pH条件,吸附效率为95.7%。在最佳温度条件(323.15K)下,吸附效率为99%。结果表明,MMT/g-C3N4/Fe3O4微胶囊是一种从水溶液中摄取微量U(VⅥ)的理想材料。

关键词：蒙石 g-C3N4 Fe3O4 铀微胶囊光催化

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

Effectiveness of modified pedestrian crossing signs in an urban area

引用

Journal of Traffic and Transportation Engineering(English Edition) 2022年第1期9卷 21-32页

作者： Stephen A.Arhin Adam Gatiba Melissa Anderson Babin Manandhar Melkamsew Ribbisso Ebenezer acheampong Transportation Research Center Howard UniversityWashington DC 20059USA

The District of Columbia currently uses the standard pedestrian warning signs and diagonal arrow plaques at a substantial number of uncontrolled crosswalks within the ***, the widespread use of these measures appears to be ineffective in curbing the incidence of pedestrian involved crashes or pedestrian-vehicle conflicts. To compensate for the perceived lack of effectiveness of the standard pedestrian warning sign the District Department of Transportation developed a new side-of-street crossing sign to improve driver compliance based on pedestrian right-of-way *** study was aimed at determining the effectiveness(defined as the proportion of drivers approaching a crosswalk who stop or yield the right of way to a pedestrian in the crosswalk) of the experimental side-of-street pedestrian crossing sign compared to the standard sign, with and without rectangular rapid flashing beacons. Effectiveness of the side-of-street pedestrian sign and standard sign were observed at a total of 32 locations in the District over a one-year period using the “control” and “experimental” comparison approach. Video data for each location was obtained from March 2018 through February 2019 during typical weekdays for the morning and afternoon peak periods. The results of the study showed that the experimental signs with RRFBs provided higher driver compliance rates(yielding to pedestrians) compared to the standard signs for both the morning and afternoon peak periods. However, the differences in compliance rates for the experimental and standard signs were not statistically significant at a 95% confidence *** evaluation of the signs is recommended using the “before” and “after” approach in addition to an assessment of crash statistics at the selected locations.

关键词： Transportation engineering Pedestrian signs Crosswalk Compliance Driver yielding behavior District of Columbia

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

Gibberellin induced shot berry formation in *** Sweet is a direct consequence of high fruit set

引用

Horticulture Research 2020年第1期7卷 733-744页

作者： Etti Or Orly Oren Tamar Halaly-Basha Padmalatha Koilkonda Zhaowan Shi Chuanlin Zheng Atiako Kwame acheampong Institute of Plant Sciences Department of Fruit Tree SciencesAgricultural Research OrganizationVolcani CenterRishon LeZion 7528809Israel Division of Crop Sciences ICAR-Central Research Institute for Dryland AgricultureSantoshnagarHyderabadTelangana 500059India Department of Fruit Tree Sciences College of HorticultureChina Agricultural UniversityBeijing 100193China Biology department University of North CarolinaChapel HillNC 27514USA

The‘seedless’table grape industry relies mainly on stenospermocarpic cultivars,in which endosperm abortion results in berries with seed rudiments and low levels of bioactive gibberellin(GA).Application of GA to enhance berry sizing in these cultivars is often accompanied by adverse effects,one of which is increased proportions of very small berries(termed shot berries).Manual removal of these berries,which is essential to improve uniformity and market value,increases production cost and exposes the cluster to *** the physiological causes of shot berry formation is thus of both scientific and practical *** study focuses on understanding the GA-mediated regulation of shot berry formation in Vitis vinifera *** Sweet,known for a high proportion of shot berries,which severely damage cluster *** GA is known to induce the parthenocarpic fruit set,we first tested the assumption that the parthenocarpic nature of a fruitlet is a primary cause for shot berry *** then examined the consequence of the flower load on the proportion of shot berries in the *** data suggests that:(1)contrary to prior assumptions,the parthenocarpic nature of a fruitlet is not the primary cause for shot berry development,demonstrated by the fact that parthenocarpic fruitlets develop into a full-size berries;(2)the proportion of shot berries on a cluster is a function of the initial flower load on the inflorescence,with high initial flower load resulting in greater shot berry percentage in the cluster;(3)GA treatment bypasses the natural regulation of flower load,resulting in high fruitlet density and increased competition among fruitlets;(4)variation of flower load within the cluster influences berry size uniformity to a greater extent than does the variation in number of cluster per *** identity of the factors that determine the fate of a given flower on a high-load cluster remains an open question.

关键词： Sweet consequence cluster

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

Evaluation of the robusticity of mutual fund performance in Ghana using Enhanced Resilient Backpropagation Neural Network(ERBPNN)and Fast Adaptive Neural Network Classifier(FANNC)

引用

Financial Innovation 2019年第1期5卷 167-178页

作者： Yushen Kong Micheal Owusu-Akomeah Henry Asante Antwi Xuhua Hu Patrick acheampong School of Finance and Economics Jiangsu University301 Xuefu RoadZhenjiangJiangsuPeople’s Republic of China School of Management Jiangsu University301 Xuefu RoadZhenjiangJiangsuPeople’s Republic of China

Mutual fund investment continues to play a very important role in the world financial markets especially in developing economies where the capital market is not very matured and tolerant of small scale *** total mutual fund asset globally as at the end of 2016 was in excess of$40.4 *** its success there are uncertainties as to whether mutual funds in Ghana obtain optimal performance relative to their counterparts in United States,Luxembourg,Ireland,France,Australia,United Kingdom,Japan,China and *** contribute to the extant literature on mutual fund performance evaluation using a collection of more sophisticated econometric *** selected six continuous historical years that is 2010-2011,2012-2013 and 2014-2015 to construct a mutual fund performance evaluation model utilizing the fast adaptive neural network classifier(FANNC),and to compare our results with those from an enhanced resilient back propagation neural networks(ERBPNN)*** FANNC model outperformed the existing models in terms of processing time and error *** makes it ideal for financial application that involves large volume of data and routine updates.

关键词： Mutual fund performance Artificial Neural Network Fast Adaptive Neural Network Classifier

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

Concordance between Clinical and Histopathological Diagnoses at Komfo Anokye Teaching Hospital Oral and Maxillofacial Unit

引用

Surgical Science 2013年第3期4卷 210-212页

作者： Alexander acheampong Oti Peter Donkor Solomon Obiri-Yeboah michael Yelibora Komfo Anokye Teaching Hospital Kumasi Ghana

Background: Accurate diagnosis of orofacial tumours is important as this determines the treatment options as well as the eventual treatment outcome. Agreement between clinical and histopathological diagnosis becomes important in this regard. Aims: The aim was to determine the level of agreement between clinical and histopathology diagnosis of orofacial lesions. Method: This is a retrospective study of all histopathology reports seen at KATH maxillofacial unit. Thedata collected included, clinical diagnosis and histological diagnosis. Results: A total of 567 histopathology reports were evaluated. The percentage of agreement between clinical and histopathological diagnosis was 62.8%. Conclusion: The agreement between clinical and histopathological diagnosis was high. However clinicians cannot rely on only the clinical diagnosis in managing patients.

关键词： Histopathology Biopsy Concordance Diagnosis

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

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：