Science Journal of Applied Mathematics and Statistics

Volume 6, Issue 4, August 2018

  • Beta Regression for Modeling a Covariate Adjusted ROC

    Sarah Stanley, Jack Tubbs

    Issue: Volume 6, Issue 4, August 2018
    Pages: 110-118
    Received: 24 July 2018
    Accepted: 9 August 2018
    Published: 11 September 2018
    Abstract: Background: Several regression methodologies have been developed to model the ROC as a function of covariate effects within the generalized linear model (GLM) framework. In this article, we present an alternative to two existing parametric and semi-parametric methods for estimating a covariate adjusted ROC. The existing methods utilize GLMs for bin... Show More
  • Towards the Solution of Abysmal Performance of Fraction in Navrongo Presbyterian Primary School: Comparing the Sets of Objects and Paper Folding Designed Interventions

    Christiana Subaar, Juliana Awune Asechoma, Vincent Ninmaal Asigri, Victor Alebna, Francis Xavier Adams

    Issue: Volume 6, Issue 4, August 2018
    Pages: 119-123
    Received: 10 August 2018
    Accepted: 29 August 2018
    Published: 21 September 2018
    Abstract: This is an interventional study sought to find the difference in the performance of pupils who were taught using sets of objects (sets model) and paper folding activities, to solve word problems involving addition and subtraction of proper fractions. A total of thirty pupils, of Navrongo Presbyterian Primary School Basic Five A, were used in the st... Show More
  • Predicting Technical Problems of Hydropower Engineering Using eXtreme Gradient Boosting

    Jing Zhu, Yi Chen, Liming Huang, Chunyong She, Yangfeng Wu, Wenyu Zhang

    Issue: Volume 6, Issue 4, August 2018
    Pages: 124-129
    Received: 17 October 2018
    Published: 18 October 2018
    Abstract: Nowadays, water shortage is increasingly severe, which has huge negative influence on daily life. Constructing hydropower engineering is one of the approaches to alleviate such problem. Therefore, it’s worth settling technical problems of hydropower engineering timely, which will help people not only make better use of water resources but also get ... Show More
  • The Effect of HIV Related Risk Factors on HIV Status: A Case of Gamo-Gofa Free Standing Voluntary Counseling and Testing Center

    Tesfahun Zewde Legisso, Markos Abiso Erango

    Issue: Volume 6, Issue 4, August 2018
    Pages: 130-134
    Received: 28 July 2018
    Accepted: 17 October 2018
    Published: 12 November 2018
    Abstract: HIV/AIDS is a major development concern in many countries and is destroying the lives and livelihoods of many people around the world. This study is aimed to assess the demographic and HIV related risk behavior factors that may affect HIV status of the visitors of VCT centers. A cross sectional study was conducted in Gamo-Gofa districts, Southern N... Show More