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School of Science and Technology

Permanent URI for this collectionhttp://41.89.31.6:4000/handle/123456789/323

Welcome to School of Sciences and Technology collection.This collection contains Journal articles published by faculty affiliated to the school.

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End date: 2019Has files: Yes

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Now showing 1 - 6 of 6
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    Beyond “yesterday’s tomorrow”: future-focused mobile interaction design by and for emergent users
    (Personal and Ubiquitous Computing, 2017-04) Jones1, Matt; Robinson1, Simon; Pearson1, Jennifer; Joshi2, · Manjiri; Raju2, Dani; Mbogo3, · Charity Chao; Wangari4, Sharon; Joshi2 ·, Anirudha ·; Cutrell5, Edward; Harper6, Richard
    Mobile and ubiquitous computing researchers have long envisioned future worlds for users in developed regions. Steered by such visions, they have innovated devices and services exploring the value of alternative propositions with and for individuals, groups and communities. Meanwhile, such radical and long-term explorations are uncommon for what have been termed emergent users; users, that is, for whom advanced technologies are just within grasp. Rather, a driving assumption is that today’s high-end mobile technologies will “trickle down” to these user groups in due course. In this paper, we open the debate about what mobile technologies might be like if emergent users were directly involved in creating their visions for the future 5–10 years from now. To do this, we report on a set of envisioning workshops in India, South Africa and Kenya that provide a roadmap for valued, effective devices and services for these regions in the next decade
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    EVALUATING THE EFFECT OF USING SCAFFOLDING TECHNIQUES TO SUPPORT JAVA PROGRAMMING ON A MOBILE PHONE
    (IADIS International Journal on WWW/Internet, 2016) Mbogo. K, Chao
    The ubiquity of mobile phones provides an opportunity to use them as a resource for construction of programs beyond the classroom. However, limitations of mobile phones impede their use as typical programming environments. This research proposed that programming environments on mobile phones could include scaffolding techniques specifically designed for mobile phones, and designed based on learners’ needs. Experiments were conducted with 142 learners from three universities in Kenya and South Africa in order to investigate the effect on learners of using the theoretically-derived scaffolding techniques to construct Java programs on a mobile phone. The results provided empirical evidence that scaffolding techniques specifically designed for mobile phones and designed based on learners’ needs could effectively support the construction of programs on a mobile phone.
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    Effect of Network Accessibility on Record Maintenance in Technical and Vocational Education and Training Institutions in Kenya: (A Case Study of Nyandarua Institute of Science and Technology)
    (IOSR Journal Of Humanities And Social Science (IOSR-JHSS), 2019-08) Kariuki, Pauline W.; Githinji, Stanley; Mathangani, Salome
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    Barriers to the Adoption of E- Learning in Kenyan Schools: A Review Study
    (African Journal of Computing & Information Systems (AJCIS), 2017-09) Kamau, Joyce Waithera; Mbogo, Chao; Chege, Dorothy
    E-learning is learning that is supported by use of electronic technology aided by computers. Emphasis on teacher centered teaching could be changed to student centered with the emergence of using E learning technologies in schools thus creating an environment that is interactive and interesting for learning. A pedagogical shift has been facilitated by E-learning entailing an interaction between learners and Teachers in education. Recent studies portray a gloomy picture about the adoption of E learning. This paper analyzes the trends and progress in the adoption of E-learning with the aim of offering areas of key interventions for stakeholders and policy makers in the education sector. The result is a set of recommendations in enhancing the adoption of E-learning in Kenyan institutions.
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    Effect of Different Spacing Intervals on Growth and Yield of Cowpea Varieties in Kilifi County, Kenya
    (International Journal For Research In Agricultural And Food Science, 2018-08) Nderi, Leonard Mugendi; Kamau, Peter; Njoka, Ellis Mbaka
    Cowpea (Vigna unguiculata [L.] walp) is an ancient leguminous plant that is indigenous to Africa. It was domesticated in sub-Saharan Africa and is now widely adapted and grown throughout the world. Cowpea is commonly cultivated in the Southern United States, Middle East, Africa, Asia, and throughout the tropics and subtropics. In Kenya, cowpea is the most important grain legume after common beans and pigeon peas. In Kilifi County and the entire Coastal Kenya, cowpea is considered as the most important African leafy vegetable (ALV), being a major source of dietary protein, especially for the rural and urban poor. The major constraints facing cowpea production in Coastal Kenya include unavailability of quality seed, lack of technical packages, low plant population and general lack of awareness of the potential the crop holds in mitigating poverty and malnutrition challenges in the community. A field experiment was carried out at Mtwapa Agricultural Training Centre (ATC) demonstration farm to determine the effect of different spacing intervals on growth and yield of cowpea varieties. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replicates. It consisted of four cowpea varieties namely Ken kunde, Katumani 80 (K80), KVU 27-1 and Machakos 66 (M66) and three spacing intervals (40 cm x 20 cm, 50 cm x 20 cm and 60 cm x 20 cm). The results showed that KVU 27-1 had the highest mean pod length, mean 100 seed weight and mean total seed weight per plot. Machakos 66 had the highest mean above ground biomass whereas Ken Kunde had the highest mean harvest index. It is suggested that cowpea variety KVU 27-1 and spacing interval 50 cm x 20 cm be adopted in cultivation of cowpeas in Kilifi County, for maximum grain yield production.