Research Publications
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Item Effectiveness of albendazole on soil transmitted nematodes among school children-: a case of Kakamega County, Kenya(2019-03-25) Ngonjo, T.W.; Okoyo, Collins; Simiyu, Elses; Kihara, Jimmy; Lelo, Agola Eric; Kabiru, Ephantus; Mwandawiro, CharlesBackground: Recent assessment by WHO on Soil Transmitted Nematodes (STN) point that their morbidity is still high in people mainly in children. A. lumbricoides globally infects 1.2 billion people and T. trichiura 795 million worldwide. Infections with Ancylostoma duodenale and Necator americanus 740 million leading to 135,000 deaths per year. It became necessary to find out the effectiveness of Albendazole on soil transmitted Nematodes among school children- a case of kakamega county, kenya. Methodology: Study respondents were selected fom public primary school children in Kakamega County. A total of 731 and 665 (pre & post) children in 7 primary schools in three sub counties of Kakamega County were recruited in the study. Pre-treatment survey was done in March, 2014 and follow up in September 2014. Fecal samples were examined for the presence of STN . 14 days after treatment using Kato- Katz method. The total number of eggs were expressed as eggs/gm of feaces (epg). Pretreatment prevalence was 43.5% for Ascaris lumbricoides, 1.8% for hookworm and 0.9% for Trichuris trichiura. Results: Mean intensity of hookworm, A. lumbricoides and T. trichiura infections in the pre-and post-surveys were reduced by 1.2%, 98.4% and 100% respectively. Prevalence decreased to 2.3% for Ascaris lumbricoides and 0 % for T. trichiura. Post treatment prevalence of A. lumbricoides and T. trichiura infections were significantly reduced by 94.8% and 100% respectively. A slight increase in hookworm prevalence was observed. However, this increase was not significant (p=0.993). Conclusion: The therapeutic efficacy of Albendazole indicated a good reduction in parasite burden. Albendazole satisfactorily reduced STN infection while for hookworm there was a non-significant increase in prevalence.Item Pervasiveness of green ICT awareness amongst Kenyan ICT personnel(2013-01) Wabwoba, Franklin; Wanyembi, Gregory W.; Omuterema, Stanley; Mutua, Stephen MakauThere has been growing concerns about the rising costs of doing business and environmental degradation world over. Green ICT has been proposed to provide solutions to the two issues yet it is not being implemented fully in developing nations like Kenya despite the availability of the technologies of doing it. The study investigated pervasiveness of green ICT awareness amongst the ICT personnel, how they perceive it to be relevant to their organisations and the drivers towards implementation of the same. The study surveyed ICT personnel in four cases using a questionnaire on a seven scale likert scale. The study established that awareness level of green ICT in Kenya is low when compared with developed nations. It also established the green ICT drivers and how ICT personnel perceived it to be relevant to their organisations. The study recommends the raising of green ICT awareness levels through aligning the ICT personnel’s capacities.Item Effect of team diversity on team cohesion in faith-based organizations: Acase of St. Martin catholic social apostolate in Nyahururu, Kenya(2022) Wanjiku, Daniel Kabiru; Gichuhi, David; Mwaura, Peteream diversity management helps to improve the cohesion of a team and ultimately, organizational development is enhanced. The purpose of this study was to determine the effect of team diversity management on team cohesion at St. Martin Catholic Social Apostolate, Kenya. The study adopted a descriptive research design. The target population for the study was 115 employees at the St. Martin Catholic Social Apostolate in Kenya. Stratified and simple random sampling procedures were used to sample 92 employees. Data was collected using a questionnaire and the collected data was analyzed through the use of the Statistical Package for Social Scientists (SPSS) version 21. Descriptive statistical analysis involved the calculation of percentages and frequencies while inferential statistical analysis involved Pearson correlation in establishing the association of the variables under investigation. and Chi-square tests. Data was presented in the form of tables and charts. Qualitative data were analysed thematically and presented in the form of narratives. The study ensured that ethical considerations were adhered to. The study found a statistically significant relationship between team diversity management and team cohesion (p<0.05). The study concludes that each team member is held accountable for their activities and the decisions they make regarding the team and is included in team activities. The study recommends that the team leaders ensure that all team members are included in all team activities. This can be achieved through creating environments and opportunities that allow the team members to provide their opinions openlyItem Exploring Resources and Performance Relationships in Commercial Enterprises: An Empirical Perspective(2015-10-07) Ombaka, Beatrice Elesani; Awino, Zachary Bolo; Machuki, Vincent N.; Wainaina, GituroDespite a growing body of literature on firm performance, explaining why firms in the same industry and markets differ in their performance remains a fundamental question within strategic management field. Researchers have attributed differences in firm performance to resources owned by a firm but the results remain fragmented and no consensus has yet emerged. Therefore, the debate is still open and this study sought to contribute to the debate and address extant gaps. This study investigated the influence of organizational resources on performance of insurance companies in Kenya. The study was based on a survey of 46 insurance companies in Kenya. The study reports that both tangible and intangible resources have a statistically significant influence on non-financial performance of insurance companies in Kenya. However, there were mixed findings as regards the individual influence of resources on various firm performance indicators. Intangible resources evidenced statistically not significant results individually but when combined, they had a statistically significant influence on non-financial performance. The reverse was true for tangible resources. Based on the findings, implications of the study and suggestions for further study are presented.Item Exploring Resources and Performance Relationships in Commercial Enterprises: An Empirical Perspective(2015-10-07) Beatrice E., Ombaka; Awino, Zachary Bolo; Machuki, Vincent N.; Wainaina, GituroDespite a growing body of literature on firm performance, explaining why firms in the same industry and markets differ in their performance remains a fundamental question within strategic management field. Researchers have attributed differences in firm performance to resources owned by a firm but the results remain fragmented and no consensus has yet emerged. Therefore, the debate is still open and this study sought to contribute to the debate and address extant gaps. This study investigated the influence of organizational resources on performance of insurance companies in Kenya. The study was based on a survey of 46 insurance companies in Kenya. The study reports that both tangible and intangible resources have a statistically significant influence on non-financial performance of insurance companies in Kenya. However, there were mixed findings as regards the individual influence of resources on various firm performance indicators. Intangible resources evidenced statistically not significant results individually but when combined, they had a statistically significant influence on non-financial performance. The reverse was true for tangible resources. Based on the findings, implications of the study and suggestions for further study are presented.Item Participatory Communication Strategies Used in the Implementation of Public Water Projects in Murang'a County, Case Study of Northern Collector Tunnel, Kenya.(2020-05-14) Maina, Bernard Muhoro; Biwott, Caroline; Ombaka, BeatriceDevelopment communication plays a major role in informing and influencing the behavior of the receiver of information. Effective development communication motivates people to participate in planned activities, changing the behavior and attitudes of people and empower them tofocus on interactions between different stakeholders to address a common problem. Community involvement is a very important aspect in implementation of any project. Without community buy-in, a project may never get off the ground or will not be accepted once it is completed. Community involvement is regarded as a nuisance and is ineffectively addressed,or there is a lack of knowledge as to how to engage the community. Either way, the results can be disastrous and would lead to delays in construction, loss of money, filing of law suits, disgruntled citizens providing negative comments to the media or non-acceptance of the revitalization project, the very thing that was supposed to be remedied. The study sought to establish Participatory Communication Strategies used in implementation of public water projects in Murang'a County, study of Northern Collector Tunnel. The Study was anchored on the theory of Kinkaid Convergence Model of Communication. The design was descriptive survey. Target population was 192,589 households. Krejcie and Morgan sampling formula was used to arrive at 384 respondents. Data was collected using a structured questionnaire and analyzed using descriptive and inferential statistics. The study established that participatory communication strategies play a critical role in the implementation of public water projects. The study recommends the involvement of community grouping, meeting with opinion leaders and the use of various media platforms including radios, local newspapers, and television and billboard illustration will go a long way in facilitating the successful implementation of Northern Collector Tunnel project.Item Assessment of phenotypic diversity of Kenyan dolichos bean (Lablab purpureus L. sweet) germplasm based on morphological markers(2017) Kamotho, Grace N.; Muasya, Reuben M.; Kinyua, Miriam G.In Kenya, lack of phenotypic diversity assessment of Lablab has hindered its improvement. It is common to find that morphologically similar cultivars do not bear the same name while cultivars bearing the same name may not be identical morphologically. The aim of this study was to clear the ambiguity that exists in differentiating between the various phenotypes of Lablab. The morphological method is the oldest and considered the first step in description and classification of germplasms. Forty five accessions of Lablab collected from farmers’ fields in Rift Valley, Eastern, Coast and Central regions of Kenya were planted at Kenya Agricultural and Livestock Research Organization, Njoro farm. A descriptor from Asian Vegetable Research Development Center was used as a guide. Results on means separation showed a high level of variability in quantitative traits and a low level of variability in qualitative traits. Eigen vectors derived from principal component analysis indicated that seed yield per plant, number of pods per plant, plant height and days to 90% mature pods contributed highly to total diversity in Lablab. In conclusion, Lablab germplasm grown in Kenya is morphologically diverse in quantitative traits where different genotypes are distinctly dissimilar.Item Research data management challenges in Kenya: the case of private universities in Nairobi County(2019-09) Anduvare, E. M.; Mutula, S. M.This research paper is a spinoff from a Doctoral degree study that was carried out at the University of KwaZulu-Natal between 2017-2019. The aim of the study was to establish the role private university libraries in Nairobi, Kenya play in supporting eResearch and the challenges thereof that librarians and researchers face in the process of managing data. The study employed both qualitative and quantitative epistemological approaches with semi structured interviews and survey questionnaires to collect data from a population consisting of university librarians, faculty members and doctoral students respectively. The population was sampled purposively. The qualitative and quantitative data sets were analysed using SPSS and content analysis respectively. The findings revealed several challenges, which included among others the lack of strategies and policies to guide research data management support, the lack of integrated RDM policies, a research process that was fragmented, and limited ICT policies and infrastructures. The institutionalisation of RDM in the private universities in Kenya is therefore urgent and imperative. The findings have policy, practical and theoretical implications for the effective RDM in Kenyan private universities in order to enhance scientific and scholarly communications. While the focus of the study limits generalisation of the findings, other universities may gain insights on RDM challenges within university settings.Item Salinity tolerance, growth and survival of three Artemia franciscana (Kellogg, 1906) populations under laboratory conditions(Wiley, 2024-04) Ngarari, Morine M.; Rugendo, Derrick G.; Nyonje, Betty M.; Hinzano, Sheban M.; Midumbi, David O.; Ngugi, Charles C.; Gatune, Charles W.In the 1980s, Artemia franciscana from San Francisco Bay (SFB) was introduced into Kenyan saltworks, where it has colonized and established stable populations. However, little is known about its biology, particularly with respect to its parental SFB population. This study compared the salinity tolerances of Kenyan (KEN) population, their SFB progenitors and those of Great Salt Lake (GSL) populations. Growth and survival of these A. franciscana populations were evaluated under varying salinity levels in a laboratory set up. A. franciscana nauplii were cultured at a rate of 1 nauplii/mL in 36 Erlenmeyer flasks and fed microalgae (Chaetoceros sp.) at 1.5 × 106 cells/animal/day for 8 days. Survival was evaluated daily and survivors were fixed in individual vials with Lugol solution. The total length of each fixed A. franciscana nauplii specimen was measured under a compound microscope. All populations were susceptible to salinities greater than 100 g/L. Compared with the parental SFB population, the KEN population exhibited significantly reduced survival and growth at 140 g/L, suggesting a narrower salinity tolerance range. These findings underscore the need for further studies focusing on other physiological parameters, abiotic factors and genetic characterization to confirm whether the KEN population is experiencing ecological adaptation. This will contribute to the optimization of Artemia practices in various salinity environments as a result of climate change.Item Salinity tolerance, growth and survival of three Artemia franciscana (Kellogg, 1906) populations under laboratory conditions(Wiley, 2024-04-17) Ngarari, Morine M.; Rugendo, Derrick G.; Nyonje, Betty M.; Hinzano, Sheban M.; Midumbi, David O.; Ngugi, Charles C.; Opiyo, Mary A.; Okalo, Francis A.; Gatune, Charles W.In the 1980s, Artemia franciscana from San Francisco Bay (SFB) was introduced into Kenyan saltworks, where it has colonized and established stable populations. However, little is known about its biology, particularly with respect to its parental SFB population. This study compared the salinity tolerances of Kenyan (KEN) population, their SFB pro-genitors and those of Great Salt Lake (GSL) populations. Growth and survival of these A. franciscana populations were evaluated under varying salinity levels in a laboratory set up. A. franciscana nauplii were cultured at a rate of 1 nauplii/mL in 36 Erlenmeyer flasks and fed microalgae (Chaetoceros sp.) at 1.5 × 106 cells/animal/day for 8 days. Survival was evaluated daily and survivors were fixed in individual vials with Lugol solution. The total length of each fixed A. franciscana nauplii specimen was measured under a compound microscope. All populations were susceptible to salinities greater than 100 g/L. Compared with the parental SFB population, the KEN population exhibited significantly reduced survival and growth at 140 g/L, suggesting a narrower salinity tolerance range. These findings underscore the need for further studies focusing on other physiological parameters, abiotic factors and genetic characterization to confirm whether the KEN population is experiencing ecological adaptation. This will contribute to the optimization of Artemia practices in various salinity environments as a result of climate change.