Journal Articles: Recent submissions
Now showing items 201-220 of 341
-
Semi-Parametric Modeling of Churn Confounding Competing Risks Using Time-Dependent Covariates Among Mobile Phone Subscribers in Kenya
(Istanbul University, 2023-06-01)Mobile phone service providers are currently experiencing high churn rates. As a result, service providers are trying to develop ways to predict churn rates and uncover why subscribers’ churn occurs. However, the task of ... -
Convergence of the Laplace and the alternative multipole expansion approximation series for the Coulomb potential
(2023-06-20)Multipole expansion is a powerful technique used in many-body physics to solve dynamical problems involving correlated interactions between constituent particles. The Laplace multipole expansion series of the Coulomb ... -
Relative Efficiency of Sum Constructed Automorphic Symmetric Balanced Incomplete Block Designs
(ResearchGate, 2020)Several construction methods have been introduced to build the elements of BIBDs’ for specific parameters, with different techniques suggested for testing their existence, still no general technique to determine the ... -
Modeling of Petroleum Prices in Kenya Using Autoregressive Integrated Moving Average and Vector Autoregressive Models
(2021)The demand for crude oil and petroleum products in Kenya has been increasing very fast over the past twenty years. This is mainly because this particular commodity is used in many sectors of the country’s economy. ... -
The application of logistic regression in modeling of survival chances of HIV-positive patients under highly active antiretroviral therapy (HAART): A Case of Nyakach District, Kenya
(Basic Research Journal, 2014)In Kenya the number of persons requiring antiretroviral Therapy (ART) in 2012 was over 90,000 while globally more than 1.4 million were under ART in the year 2012. Though ART treatment has decreased mortality of HIV associated ... -
The upper triangular algebra loop of degree 4
(Charles University in Prague, Faculty of Mathematics and Physics, 2014)A natural loop structure is defined on the set $U_4$ of unimodular upper-triangular matrices over a given field. Inner mappings of the loop are computed. It is shown that the loop is non-associative and nilpotent, of class ... -
COMPUTING FUZZY SUBGROUPS OF SOME SPECIAL CYCLIC GROUPS
(Korean Mathematical Society, 2019)In this paper, we discuss the number of distinct fuzzy subgroups of the group ${\mathbb{Z}}_{p^n}{\times}{\mathbb{Z}}_{q^m}{\times}{\mathbb{Z}}_r$, m = 1, 2, 3 where p, q, r are distinct primes for any $n{\in}{\mathbb{Z}}^+$ ... -
APPLICATION OF RCBD IN DETERMINING DEVIATION OF PRICES OF BASKET COMMODITIES IN SUPERMARKETS IN MOMBASA COUNTY
(Mathematical Theory and Modeling, 2018)This study reveals the significant deviation, correlation and statistical significance and variance on the prices of the commodities charged by the four supermarkets in Mombasa County. A statistical model, Randomized ... -
Loan Portfolio Growth and Financial Performance of Commercial banks in Kenya
(2024)Loans comprise the single largest asset for commercial banks. To grow the bank's assets, bank managers focus on increasing the number of loans granted by the bank. The general objective of this study was to evaluate the ... -
PERSONAL CHARACTERISTICS AND ORGANIZATIONAL COMMITMENT OF PART-TIME ACADEMIC STAFF IN INSTITUTIONS OF HIGHER EDUCATION IN NAIROBI AND MOMBASA CITIES IN KENYA
(2014)Past studies provide evidence to show that organizational commitment has been a topic of increasing public and professional concern, both inside and outside Human Resource Management domains. The expansion of university ... -
Vulnerabilities at First Sex and Their Association With Lifetime Gender-Based Violence and HIV Prevalence Among Adolescent Girls and Young Women Engaged in Sex Work, Transactional Sex, and Casual Sex in Kenya
(Wolters Kluwer Health, 2018-11-11)Background: Adolescent girls and young women (AGYW) experience high rates of HIV early in their sexual life course. We estimated the prevalence of HIV-associated vulnerabilities at first sex, and their association with ... -
Perspectives on HIV Pre- and Post- Exposure Prophylaxes (PrEP and PEP) among Female and Male Sex Workers in Mombasa, Kenya: Implications for Integrating Biomedical Prevention into Sexual Health Services
(Guilford, 2017)Pre- and post-exposure prophylaxes (PrEP and PEP) can reduce the risk of HIV acquisition, yet often are inaccessible to and underutilized by most-vulnerable populations, including sex workers in sub-Saharan Africa. Based ... -
HIV Infection Alters the Spectrum of HPV Subtypes Found in Cervical Smears and Carcinomas from Kenyan Women
(Bentham Science Publishers, 2013)Infection with high risk HPV is implicated in pre-cancerous squamous intraepithelial lesions and their progression to cervical cancer. In the developed countries, infection with HPV 16 and 18 accounts for ~70% of cervical ... -
Need for and use of contraception by women before and during COVID-19 in four sub-Saharan African geographies: results from population-based national or regional cohort surveys
(Elsevier, 2021)Background Although hindrances to the sexual and reproductive health of women are expected because of COVID-19, the actual effect of the pandemic on contraceptive use and unintended pregnancy risk in women, particularly ... -
Human papillomavirus types in women with invasive cervical carcinoma by HIV status in Kenya
(Wiley Subscription Services, Inc., A Wiley Company, 2008)To evaluate the fraction of invasive cervical carcinoma (ICC) that could be prevented in HIV-infected women by vaccines currently available against human papillomavirus (HPV)16 and 18, we conducted a cross-sectional study ... -
Predictors of cervical cancer screening among Kenyan women: results of a nested case-control study in a nationally representative survey
(BioMed Central, 2018)Background: Cervical cancer is a major public health concern in Kenya. It is the leading cause of cancer morbidity and mortality among women. Although screening is an effective prevention method, uptake is low among ... -
Opportunities to improve postpartum care for mothers and infants: design of context-specific packages of postpartum interventions in rural districts in four sub-Saharan African countries
(BioMed Central, 2015)Background: Postpartum maternal and infant mortality is high in sub-Saharan Africa and improving postpartum care as a strategy to enhance maternal and infant health has been neglected. We describe the design and selection ... -
“They Destroy the Reproductive System”: Exploring the Belief that Modern Contraceptive Use Causes Infertility
(2018)A common reason for nonuse of modern contraceptives is concern about side effects and health complications. This article provides a detailed characterization of the belief that modern contraceptives cause infertility, and ... -
Teamwork in Qualitative Research: Descriptions of a Multicountry Team Approach
(SAGE Publications, 2017)Multicountry teamwork in qualitative research is receiving increased recognition in an attempt to address global health problems. We report our experience of teamwork implementing a multicountry study (Zambia, South Africa, ... -
The effects of HIV-1 Tat protein on cell cycle during cervical carcinogenesis
(Taylor & Francis, 2006)The role of HPV in the carcinogenesis of intraepithelial and invasive anogenital lesions is currently well established. E6 and E7 oncoproteins of high-risk HPV genotypes are known to inactivate p53 and pRb pathways. ...