Journal articles Open Access Inhomogeneous Poisson point process for species distribution modelling: relative performance of methods accounting for sampling bias and imperfect detection A. B. Fandohan · R. Glèlè Kakaï · Y. Mugumaarhahama · A. C. Mushagalusa +1 more Species distribution models (SDMs) have become tools of great importance in ecology, as advanced knowledge of suitable species habitat is required for the process of global biodiversity conservation. Presence-only data are the more abundan… RUF-39543 2022 CC BY 4.0 30 May 2022
Journal articles Open Access Treatment Failure and Associated Factors among Individuals on Second Line Antiretroviral Therapy in Eastern Uganda: A Retrospective Cohort Study Deborah Alio · J. Byakika-Tusiime · J. P. Masette Masaba · S. Matekha Background: ART failure is a growing public health problem and a major threat to the progress of HIV/AIDS control. In Uganda however, little is documented on treatment outcomes and their associated factors among individuals on second line … RUF-39315 2021 CC BY 4.0 25 Jun 2021
Journal articles Open Access Factors Influencing Genomic Prediction Accuracies of Tropical Maize Resistance to Fall Armyworm and Weevils S Agbahoungba · G. Asea · A. Badji · A. Bararyenya +14 more Genomic selection (GS) can accelerate variety improvement when training set (TS) size and its relationship with the breeding set (BS) are optimized for prediction accuracies (PAs) of genomic prediction (GP) models. Sixteen GP algorithms we… RUF-38958 2020 CC BY 4.0 7 Feb 2021
Working Document Series Open Access Empirical assessment of the relative performance of orthogonal contrast analysis for optimization A.E. Assogbadjo · R. Glèlè Kakaï · R. Idohou · V.K. Salako +1 more Optimization in decision making is essential for efficient allocation of rare resources. Finding the optimal values for a given process has been a key issue in statistical science. Analysis of variance is one of the popular statistical met… RUF-36863 2016 CC BY 4.0 14 Sep 2017
Theses & Dissertations Open Access Generalized linear models with Poisson family: applications in ecology Bruno Enagnon Lokonon Ecological data are often discrete and do not follow the assumptions of the General linear model and its variants (linear regressions, ANOVA, etc.). Discrete response variables, such as count data, often contain many zero observations and … RUF-36051 2016 CC BY 4.0 4 Oct 2016
Theses & Dissertations Open Access Production unit’s efficiency analysis using metafrontier: application to conventional and organic cotton in Benin Ayédesso Marc Aurèle Adjobo Chabi Comparisons of unit’s efficiencies operate under different technologies remains an important issue in economic studies. This paper tries to shed light on the sensitivity of empirical results to the selection of the estimation method. The p… RUF-36049 2016 CC BY 4.0 4 Oct 2016
Theses & Dissertations Open Access Application of common components and specific weights method to analyze local perception patterns of land degradation in Northern Benin (West Africa) Essomanda Tchandao Mangamana Common components and specific weights analysis (CCSWA) is a relatively recent multiblock statistical method that constitutes an extension of principal components analysis (PCA) in the case where different sets of quantitative variables ha… RUF-36047 2016 CC BY 4.0 4 Oct 2016
Journal articles Open Access Comparative study of two modeling approaches for predicting heavy metals contaminant migration from polyethylene bags N. Banadda · J. Kigozi · F. Lule · C. Sempala Plasto-Foam brand, medium size of 30 mm thickness (black and green) commonly used polyethylene bags for preparing foods were selected from those available in local markets. The polyethylene bag samples were crushed into pieces, ashed and t… RUF-35958 2016 CC BY 4.0 24 Jun 2016
Theses & Dissertations Open Access Estimating the survival of patients with cancer of the cervix at Kenyatta National Hospital in Nairobi, Kenya Khaemba Emma Nelima Cervical cancer ranks as the second most frequent cancer among women globally. The majority of patients present in advanced disease stages, leading to high mortality rates. Information on the survival of cervical cancer patients in Kenya w… RUF-35321 2013 CC BY 4.0 21 Sep 2015
Theses & Dissertations Open Access Assessment of Research and Statistical Related Processes in Three Institutions of Higher Learning in Kenya Nancy Waitherero Chege Institutions of higher learning are mandated to conduct applied research and promote innovations among other functions. The purpose of this study was to assess four research and statistical-related processes in three institutions of higher… RUF-31746 2012 CC BY 4.0 9 Apr 2014
Theses & Dissertations Open Access Research Methods and Approaches in ‘Innovation in Livestock Systems’ Research Projects at International Livestock Research Institute, Addis Ababa Mulugeta Yitayih Birhanu The project was undertaken at the International Livestock Research Institute (ILRI, Addis Ababa) in Innovation in Livestock Systems Research team. It assessed the research methods, approaches and practices followed and, challenges faced th… RUF-31744 2011 CC BY 4.0 9 Apr 2014
Theses & Dissertations Open Access Enhancing Effective Use of Research Methods at the International Potato Centre (CIP): Case Study “Sweet Potato Action for Security and Health in Africa (SASHA) Project” Januaris Nthenge Mbatha The International Potato Center (CIP) was established in 1971 and seeks to reduce poverty and achieve food security on a sustained basis in developing countries through scientific research and related activities on potato, sweet potato, ot… RUF-31740 2012 CC BY 4.0 9 Apr 2014
Theses & Dissertations Open Access Improving Scientific Research at Kenya Agricultural Research Institute (KARI) – Kakamega Research Centre: a Research Methods Approach Hildah Nyende Wambani MSc in Research Methods is a unique problem solving program that increases the capacity to plan, implement and generate quality research. Lack of current and necessary statistical skills in data analysis, interpretation and reporting and e… RUF-31738 2011 CC BY 4.0 8 Apr 2014
Theses & Dissertations Open Access Contribution to research methodology through capacity building at the World Agroforestry Centre, Rwanda Grégoire Hagenimana The capacity to conceptualize, plan and implement effective research is often limited. The contribution in research methodology such as experimental design, data collection, management and analysis is crucial for improving research quality… RUF-31736 2012 CC BY 4.0 8 Apr 2014
Theses & Dissertations Open Access Weaknesses in Research Methods of Scientists at Kenya Forest Research Institute (KEFRI) and Interventions for Improvement Grace Nyaikamba Wang'ombe Sustainable management, conservation and development of Kenya’s forests depend on application of science to generate improved technologies. KEFRI has lately been facing a number of challenges in carrying out its research activities as a re… RUF-31734 2011 CC BY 4.0 8 Apr 2014
Theses & Dissertations Open Access Providing Research Methods Support to the Markets Theme Department of the International Livestock Research Institute (ILRI) Mayoba Barbara Moono The dissertation describes the main activities carried out during the attachment at the International livestock Research Institute (ILRI) in Nairobi, Kenya under the Markets theme group. The activities were carried out under two projects t… RUF-31732 2011 CC BY 4.0 8 Apr 2014
Theses & Dissertations Open Access Multinomial Regression in Insect Choice Studies: A Case of Leaf Miner Parasitoids’ Choices Kevin Kanyuira Gikonyo Researchers are often confronted with multinomial data in insect choice studies. Common choice models available to researchers for analysis of multinomial data include multinomial logit (MNL) and multinomial probit model (MNP). MNL relies … RUF-31727 2013 CC BY 4.0 7 Apr 2014