Browsing Staff Publications by Title
Now showing items 615-634 of 908
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Non-Parametric Estimator for a Finite Population total under Stratified Sampling incorporating a Hybrid of Data Reflection and Transformation Techniques
(Meru University of Science and Technology, 2023)Statisticians use survey sampling methods in the estimation of population parameters of interest. This field has received increased demand due to the reliable statistic they produce. Information is extracted from the samples ... -
Non-response weighting adjustment approach in survey sampling
(JKUAT Press Ltd, 2006)Non-response problem is an issue of great concern to all the researchers because it pervades almost all survey research. This ultimately creates potential for bias. The higher the non-response rate the greater the bias if ... -
Nonparametric estimation of distribution function for stratified populations
(International Journal of Probability and Statistics, 2018)Nonparametric estimation of population parameters for finite populations has been used with great success for data that fit the independent and identically distributed framework. However, most of these approaches do not ... -
Nonparametric mixed ratio estimator for a finite population total in stratified sampling
(Pakistan Journal of Statistics and Operation Research, 2010)We propose a nonparametric regression approach to the estimation of a finite population total in model based frameworks in the case of stratified sampling. Similar work has been done, by Nadaraya and Watson (1964), Hansen ... -
Nonparametric model assisted model calibrated estimation in two stage survey sampling
(JKUAT Press Ltd, 2007) -
A numerical investigation of the effect of curvature and Reynolds number to radial velocity in a curved porous pipe
(International Journal of Advances in Applied Mathematics and Mechanics, 2017)Different irrigation methods are being used in agriculture. However, due to scarcity of water, irrigation methods that use water efficiently are needed. The motivation of this study is the increasing use of porous pipes ... -
Nutritional Diversity of Leafy Amaranth Species grown in Kenya
(Elewa Bio Science, 2014)Objectives: Despite the availability of many species of amaranth in Kenya, there is inadequate information on their nutritional diversity and how they can be best used in mitigation of malnutrition. Hence, this study was ... -
Oil Content and Fatty Acid Composition of Five Linseed Varieties Grown In Two Agro-Ecological Locations of Kenya
(Journal of Agriculture and Environmental Sciences, 2015)Linseed oil is rich in the health promoting fatty acids, alpha-linolenic acid (omega-3) and oleic acid (omega-9), and is increasingly being used as a nutraceutical. However, there is limited linseed production in Kenya ... -
On Estimation of Panel Data Regression Model in the Presence of Endogeneity and Heterogeneity
(International Journal of Mathematics & Computation, 2015) -
On quantiles estimation based on stratified sampling using multiplicative bias correction approach.
(Journal of Mathematics, 2022)In the context of stratified sampling, we develop a nonparametric regression technique to estimating finite population quantiles in model-based frameworks using a multiplicative bias correction strategy. Furthermore, the ... -
On The Existence of a Non-Relativistic Hermitian Time Operator
(2015)The existence of a hermitian time operator is proposed in the framework of non-relativistic quantum mechanics. The Heisenberg equation of motion is shown to yield constant rate of flow of time. It is shown to yield results ... -
OP25. 09: Early fetal growth in malaria infected pregnancies
(John Wiley & Sons, Ltd, 2011) -
OP25. 10: Fetal biometrics, umbilical and uterine artery Doppler studies among malaria infected and not infected pregnant women
(John Wiley & Sons, Ltd., 2011)Placental malaria contributes to maternal morbidity and low birth weight in malaria endemic countries. Intermittent anti‐malarial prophylaxis given twice during pregnancy has been shown to decrease the prevalence of low ... -
OP25. 10: Fetal biometrics, umbilical and uterine artery Doppler studies among malaria infected and not infected pregnant women
(John Wiley & Sons, Ltd., 2011)Placental malaria contributes to maternal morbidity and low birth weight in malaria endemic countries. Intermittent anti‐malarial prophylaxis given twice during pregnancy has been shown to decrease the prevalence of low ... -
Optical properties of ZnO nanoparticles synthesized by varying the sodium hydroxide to zinc acetate molar ratios using a Sol-Gel process.
(Springer, 2016)Material property dependence on the OH−/Zn2+ molar ratio of the precursor was investigated by varying the amount of NaOH during synthesis of ZnO. It was necessary to control the water content and temperature of the mixture ... -
Optical, microphysical and radiative properties of aerosols over a tropical rural site in Kenya, East Africa: Source identification, modification and aerosol type discrimination
(Pergamon, 2018)A better understanding of aerosol optical, microphysical and radiative properties is a crucial challenge for climate change studies. In the present study, column-integrated aerosol optical and radiative properties observed ... -
ORIGINAL RESEARCH Open Access Health financing in the African Region: 2000 – 2009 data analysis
(International Archives of Medicine, 2014)In order to raise African countries probability of achieving the United Nations Millennium. Development Goals by 2015, there is need to increase and more efficiently use domestic and external funding to strengthen health ... -
Outlier Robustness of the Estimators of Variance of the Ratio Estimator
(Jomo Kenyatta University of Agriculture and Technology (JKUAT), 2002) -
Ownership and technical efficiency of hospitals: evidence from Ghana using data envelopment analysis
(BioMed Central, 2014)In order to measure and analyse the technical efficiency of district hospitals in Ghana, the specific objectives of this study were to (a) estimate the relative technical and scale efficiency of government, mission, private ... -
Parallel evolution of hysterothecial ascomata in ascolocularous fungi (Ascomycota, Fungi).
(The Natural History Museum, 2009-12-01)Ascoma morphologies have traditionally been used to classify filamentous ascomycete fungi. Phylogenies generated using DNA sequence data have since shown most of the previously identified groups not to be monophyletic. The ...