SIMC 2017: Recent submissions
Now showing items 41-60 of 85
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On the negative eigenvalues of two-dimensional Schroedinger operators with singular potentials
(Strathmore University, 2017)In this paper quantitative upper estimates for the number of negative eigenvalues of a two dimensional Schroedinger operator with potential supported by an unbounded Lipschitz curve are presented. The estimates are given ... -
Polynomially compact bilinear endorphisms of finite type of Banach algebras
(Strathmore University, 2017)Kamowitz’s classical result on a compact endomorphism T of a commutative Ba- nach algebra A asserts that ∩T ∗n(Xr ) is finite where T ∗ is the adjoint of T and Xr),is the set of multiplicative linear functionals on A. This ... -
On self adjoint norm-attainable operators
(Strathmore University, 2017)In this paper we present the theory of norm-attainability for Hilbert space operators. In particular, we characterize self-adjointedness of the norm-attainable operators. We also outline the relationship between ... -
Adaptation of a RAS pathway activation signature from FF to FFPE tissues in colorectal cancer
(Strathmore University, 2017)Background: The KRAS gene is mutated in about 40 % of colorectal cancer (CRC) cases, which has been clinically validated as a predictive mutational marker of intrinsic resistance to anti-EGFR inhibitor (EGFRi) therapy. ... -
Modeling the effects of interference in fertility rate of Kenya
(Strathmore University, 2017)Many studies have been done on fertility for many years. However, very little has been documented in the existing literature concerning modeling of fertility in the presence of interference, yet interference to fertility ... -
A Joint assessment of outcomes in quantitative evidence synthesis
(Strathmore University, 2017)Quantitative research synthesis (or meta-analysis) has seen significant methodological development in the application of multivariate methods for the comparison of multiple endpoints. Multivariate meta-analysis offers some ... -
Cancer cases in Kenya; forecasting incidents using box & amp; Jenkins Arima Model
(Strathmore University, 2017)The aim of the study was to fit appropriate time series models in assessing the accuracy of the Box Jenkins and ARIMA model in forecasting of Cancer case admissions for all people of any age from different health facilities ... -
Bayesian estimation of Multivariate Stochastic Volatility by applying state space models
(Strathmore University, 2017)This work seeks to apply a Bayesian analysis in estimating multivariate stochastic volatility (MSV) using state space models. A multiplicative model based on inverted Wishart and multivariate singular beta distributions ... -
Analysis of categorical data in presence of latent random effects using Structural Equation Modeling: an application
(Strathmore University, 2017)In most medical research, of interest is to establish the causal relationships that exist between variables which may be direct or indirect. This research intends to use structural equation modeling technique to analyze ... -
Semi-parametric spatial joint modeling of HIV and HSV-2 among women in kenya with spatially varying coefficients
(Strathmore University, 2017)Human immunodeficiency virus (HIV) is a pandemic that continues to spread even with concerted efforts that have been put in place to help curb it. There are a number of factors that contribute to this spread, among them ... -
Spatiotemporal Bayesian Technique to gap-fill and downscale long-term vegetation index records
(Strathmore University, 2017)Long-term Earth observation based vegetation index records are used extensively to characterize the environmental and ecosystem response to climate variability and change. However, the presence of clouds, and other spectral ... -
Using copulas to select prognostic genes in melanoma patients
(Strathmore University, 2017)Melanoma of the skin is the 5th and seventh most commonly diagnosed carcinoma in men and women, respectively, in the USA. So far, gene signatures prognostic for overall and distant metastasis-free survival, for example, ... -
Testing for the difference in sensitivities of binary classifiers using survival analysis
(Strathmore University, 2017)Sensitivity is an important measure of the performance of a binary classifier in a disease control program among populations at risk. Where one has to choose between binary classifiers, on basis of their sensitivities, a ... -
The Optimization of multiple responses of watermelon to organic manure using Response Surface Methodology
(Strathmore University, 2017)This paper discusses the use of Central Composite Design (CCD) approach to plan the experiments for growth and yield of watermelon with an overall objective of optimizes the multiple responses of watermelon to organic ... -
A Mixed methods research to determine factors influencing time to degree for undergraduates students in private universities
(Strathmore University, 2017)Institutions of higher learning consider timely graduation rates as one of the key performance indicator. According to Leticia & Astin, (2005) faculty and student affairs officers consider timely degree attainment as ... -
A Comparison of the Bayesian regression and the Ordinary Least Squares regression
(Strathmore University, 2017)The ordinary least squares regression model assumes that there are enough data to make inference about the parameters. For Bayesian regression however, the data are supplemented with additional information in the form of ... -
A Mathematical model for motorcycle rider population total based on susceptibles, reported and unreported accidents
(Strathmore University, 2017)Reports indicate that the emergence of motorcycles in the transport sector has come with both pros and cons. The rising numbers of motorcycles and the related accidents have a close association. In some previous studies, ... -
Validation of the smooth test of goodness-of-fit for proportional hazards in Cancer survival studies
(Strathmore University, 2017)In this study, we validate the smooth test of goodness-of-fit for the proportionality of the hazard function in the two-sample problem in cancer survival studies. The smooth test considered here is an extension of Neyman’s ... -
Comparison of binary diagnostic predictors using entropy
(Strathmore University, 2017)The use of gold standard procedures in screening may be costly, risky or even unethical. It is usually therefore, not admissible for large scale application. In this case, a more acceptable diagnostic predictor is applied ... -
Spatial statistical analysis of infant mortality distribution in Ethiopia
(Strathmore University, 2017)Infant mortality study importance comes from two sides; represents 75% of children under five years of age mortality, in addition to the majority of these deaths can be avoided. Infant mortality combat costs huge budgets ...
