Publications

Found 3110 results

Sort by: [ Author  (Asc)] Title Type Year
Filters: First Letter Of Last Name is W  [Clear All Filters]
A B C D E F G H I J K L M N O P Q R S T U V [W] X Y Z   [Show ALL]
W
Waiganjo N, Ochanda H, Yole D. Phytochemical analysis of the selected five plant extracts.; 2016. AbstractWebsite

Herbal medicine is still the mainstay of about 75 - 80% of the whole population, and the major part of
traditional therapy involves the use of plant extracts and their active constituents. Plants were collected,
identified, dried then extracted using hexane, Dichloromethane/methanol and water. Identification assays to
test the presence of various chemical constituents were carried out. The five plants were: Sonchus luxurians,
Ocimum americanum, Bridelia micrantha, Croton megalocarpus and Aloe secundiflora. The
Phytochemical screening of the compounds present in the plant extracts were; alkaloid, glycosides,
Saponins, reducing sugar, Steroid, Flavones and Catecholics. The most common compound in all the plant
extracts was Catecholics. Steroids are used in medicine to treat many diseases. The Plant extracts can be
possible candidates for drug development.
Keywords: Herbal medicine, Phytochemical compounds, Traditional therapy, Plant extracts

Waiganjo PW. "Computer-Based Medical Diagnostic Decision Assistant." University of Nairobi. 2004.Full text link
Waiganjo N, Ochanda H, Yole D. "Phytochemical Analysis of selected five plant extracts.". In: Chemistry and Materials Research.; 2013.
Waiganjo Wagacha P, Pauw GD, P.W. Githinji. "A Grapheme-Based Approach for Accent Restoration in Gikuyu.". In: Proceedings of the Fifth International Conference on Language Resources and Evaluation. Genoa, Italy: European Language Resources Association; 2006:. Abstract
n/a
Wainaina G, Michael M. "‘NEW’ STRATEGIES FOR FINANCING EDUCATION AND TRAINING IN AFRICA.". In: EDUCATION FOR ALL HIGH LEVEL PANEL MEETING. Addis Ababa; 2010.
Wainaina, W. P., Okello, J.J., Nzuma, M.J. "Contract Farming, Smallholder Poultry Production and Household Welfare in Kenya." Quarterly Journal of International Agriculture. 2014;53(4):319-340.
Wainaina Samuel Murigi, Mbaria James Mucunu, Wakonyu KL, Misonge OJ. "Ethnobotanical Survey of Plants Used For Management of Arthritis In Nyamira North Sub-County of Nyamira County, Kenya." The Journal of Ethnobiology and Traditional Medicine. 2019;130(2019)(ISJN):1510-1531.
Wairimu J, Wandera O. "The Dynamics of Vector-Host Feeding Contact Rate with Saturation: A Case of Malaria in Western Kenya." Scientific Research Publishing. 2013;4(10):1381-1391 . AbstractWebsite

In this study, we develop an expression for a saturated mosquito feeding rate in an SIS malaria model to determine its effect on infection and transmission dynamics of malaria in the highlands of Western Kenya. The basic reproduction number is established as a sharp threshold that determines whether the disease dies out or persists in the population. Precisely, if , the disease-free equilibrium is globally asymptotically stable and the disease always dies out and if , there exists a unique endemic equilibrium which is globally stable and the disease persists. The contribution of the saturated contact rate to the basic reproduction number and the level of the endemic equilibrium are also analyzed.

WAIRIMU PROFKIBERALUCY. ""The State of the Art of Adult Education and Didactic Materials in Kenya: A Gender Perspective" Journal of Kenya Adult Education Association Vol. 3 No. 2 1997.". In: UNESCO/UNITWIN CHAIRS STRATEGIC planning workshop at University of Nairobi- 15-17 July ,1997. AIDS 24(6):891-7; 1997. Abstract
  
WAIRIMU PROFKIBERALUCY. "Children's Wisdom Stories by Kenya Literature Bureau.". In: Kenya Literature Bureau. AIDS 24(6):891-7; 1985. Abstract
  
Wairimu J, Ronoh M. "Modeling Insecticide Resistance in Endemic Regions of Kenya." Scientific Research Publishing. 2016;7(6):542. AbstractWebsite

In this study, we develop an SIS model for two types of mosquitoes, a traditional one and one that is resistant to IRS and ITNs. The resistant mosquito develops behavioral adaptation to control measures put in place to reduce their biting rate. They also bite early before dusk and later after dark when people are outside the houses and nets. We determine the effect of the two types of mosquitoes on malaria transmission in Kenya. The basic reproduction number R 0 is established as a sharp threshold that determines whether the disease dies out or persists in the population. Precisely, if R 0 ≤ 1, the disease-free equilibrium is globally asymptotically stable and the disease always dies out and if R 0 > 1, there exists a unique endemic equilibrium which is globally stable and the disease persists. The contribution of the two types of mosquitoes to the basic reproduction number and to the level of the endemic equilibrium is analyzed.

WAIRIMU PROFKIBERALUCY. ""Gender and Politics in Kenya".". In: College of Education and External Studies, University of Nairobi, Kenya- November, 1997. AIDS 24(6):891-7; 1997. Abstract
  
WAIRIMU PROFKIBERALUCY. ""The Role of Philosophy of Education in the Education of Teachers".". In: Seminar Paper at Kenya Technical Teachers College,in Nairobi, Kenya. AIDS 24(6):891-7; 1987. Abstract
  
WAIRIMU PROFKIBERALUCY. "The Influence of Ecology and Ethnicity on Educational Aspirations of Secondary School Students in Kenya".". In: Kenyatta University-1997. AIDS 24(6):891-7; 1997. Abstract
  
WAIRIMU PROFKIBERALUCY. "Literacy and Post Literacy Print and Visual Materials with a Gender Perspective,.". In: UNESCO sub-regional seminar Arusha, Tanzania.- 3 rd to 13 th October, 1994. AIDS 24(6):891-7; 1994. Abstract
  
WAIRIMU PROFKIBERALUCY. ""Analysis Characterizations of Female Gender in Selected Fictions and Textbooks in Contemporary Kenya" Adult Educator, The Kenya Adult Educator Vol. 5 No. 2, 2001.". In: The Kenya Adult Educator Vol. 5 No. 2, 2001. AIDS 24(6):891-7; 2001. Abstract
Department of Infectious Disease Epidemiology, Imperial College School of Medicine, London, UK. Previous attempts to determine the interactions between filariasis transmission intensity, infection and chronic disease have been limited by a lack of a theoretical framework that allows the explicit examination of mechanisms that may link these variables at the community level. Here, we show how deterministic mathematical models, in conjunction with analyses of standardized field data from communities with varying parasite transmission intensities, can provide a particularly powerful framework for investigating this topic. These models were based on adult worm population dynamics, worm initiated chronic disease and two major forms of acquired immunity (larval- versus adult-worm generated) explicitly linked to community transmission intensity as measured by the Annual Transmission Potential (ATP). They were then fitted to data from low, moderate and moderately high transmission communities from East Africa to determine the mechanistic relationships between transmission, infection and observed filarial morbidity. The results indicate a profound effect of transmission intensity on patent infection and chronic disease, and on the generation and impact of immunity on these variables. For infection, the analysis indicates that in areas of higher parasite transmission, community-specific microfilarial rates may increase proportionately with transmission intensity until moderated by the generation of herd immunity. This supports recent suggestions that acquired immunity in filariasis is transmission driven and may be significant only in areas of high transmission. In East Africa, this transmission threshold is likely to be higher than an ATP of at least 100. A new finding from the analysis of the disease data is that per capita worm pathogenicity could increase with transmission intensity such that the prevalences of both hydrocele and lymphoedema, even without immunopathological involvement, may increase disproportionately with transmission intensity. For lymphoedema, this rise may be further accelerated with the onset of immunopathology. An intriguing finding is that there may be at least two types of immunity operating in filariasis: one implicated in anti-infection immunity and generated by past experience of adult worms, the other involved in immune-mediated pathology and based on cumulative experience of infective larvae. If confirmed, these findings have important implications for the new global initiative to achieve control of this disease.
WAIRIMU PROFKIBERALUCY. ""The Role of Culture and Education in the Development of Creativity", Adult Educator, The journal of the Kenya Adult Education Association. Vol. 2 No. 2.". In: Adult Educator, The journal of the Kenya Adult Education Association. Vol. 2 No. 2. AIDS 24(6):891-7; 1995. Abstract
  
WAIRIMU PROFKIBERALUCY. ""Sexually, Health and Reproductive Rights of Women. ".". In: Guest Lecturer at Gender Institute, 1995, Dakar, Senegal.- 13 th July to 31 st July,1995. AIDS 24(6):891-7; 1995. Abstract
  
WAIRIMU DRWAWERU, WAIRIMU DRWAWERU. "Verstraete W, Morgan-Sagastume F, Aiyuk S, Waweru M, Rabaey K, Lissens G..Anaerobic digestion as a core technology in sustainable management of organic matter.Water Sci Technol. 2005;52(1-2):59-66.". In: Water Sci Technol. 2005;52(1-2):59-66. MBA; 2005. Abstract
In the past decades, anaerobic digestion (AD) has steadily gained importance. However, the technology is not regarded as a top priority in science policy and in industrial development at present. In order for AD to further develop, it is crucial that AD profits from the current fuel issues emerging in the international arena. AD can provide low-cost treatment of sewage and solid domestic wastes, which represents a vast application potential that should be promoted in the developing world. Furthermore, the developments in the last decades in the domain of anaerobic microbiology and technology have generated some interesting niches for the application of AD, such as anaerobic nitrogen removal and the treatment of chlorinated organics. Recently, AD has also generated some serendipities, such as the use of AD in processes for sulphur and calcium removal and the coupling of AD with microbial fuel cells. The international developments in terms of bio-refineries and CO2-emission abatement are of crucial importance with respect to the impetus that AD will receive in the coming decade. There should be little doubt that by placing the focus of AD on the production of green energy and clean nutrients, the future of AD will be assured. PMID: 16180409 [PubMed - indexed for MEDLINE
Wairimu J, Ogana W. "The Dynamics of Vector-Host Feeding Contact Rate with Saturation. (http://dx.doi.org/10.4236/am.2013.410187.)." A Case of Malaria in Western Kenya, Applied Mathematics,. 2013;4:pp. 1381-1391.
Wairimu JK, Sallet GWO. "A vector SIS model for malaria in a patchy environment with age structure." School of Biological Sciences. 2012;2012.Website
WAIRIMU PROFKIBERALUCY. "The Challenges and Future Prospects of Female Entrepreneurial Activities in Kenya.". In: University of Dar-es- Salaam from 23 rd to 24 th October, 1997. AIDS 24(6):891-7; 1997. Abstract
  
Wairimu J, Sallet G, Ogana W. "Mathematical analysis of a large scale vector SIS malaria model in a patchy environment." Scientific Research Publishing. 2014;5(13):1913-1926. AbstractWebsite

We answer the stability question of the large scale SIS model describing transmission of highland malaria in Western Kenya in a patchy environment, formulated in [1]. There are two equilibrium states and their stability depends on the basic reproduction number, 0  [2]. If 0 1  ≤ , the dis-ease-free steady solution is globally asymptotically stable and the disease always dies out. If 0 1  > , there exists a unique endemic equilibrium which is globally stable and the disease persists. Application is done on data from Western Kenya. The age structure reduces the level of infection and the populations settle to the equilibrium faster than in the model without age structure.

WAIRIMU PROFKIBERALUCY. ""Women Education and Life Skills".". In: UNESCO/UNITWIN CHAIRS STRATEGIC planning workshop at University of Nairobi- 15-17 July ,1997. AIDS 24(6):891-7; 1997. Abstract
  
WAIRIMU PROFKIBERALUCY. "Children's Riddles by Kenya Literature Bureau.". In: Kenya Literature Bureau. AIDS 24(6):891-7; 1987. Abstract
  
WAIRIMU PROFKIBERALUCY. ""The Challenges and Future Prospects of Female Entrepreneurial Activities in Kenya".". In: University of Dar-es- Salaam -23 rd to 24 th October, 1997. AIDS 24(6):891-7; 1997. Abstract
  
WAIRIMU PROFKIBERALUCY. "The Role of Culture and Education in the Department of Creativity: Perspectives from Kenya.". In: The Third International Social Studies and Environmental Programme held at Hotel International, Nairobi, Kenya - 27 th - 29 th June,1994. AIDS 24(6):891-7; 1994. Abstract
  
WAIRIMU PROFKIBERALUCY. ""Launching of Literacy Materials Workshop".". In: UNE SCO/UNESCO/UNIT WIN CHAIR Workshop , 26 th - 28 th July,2000. AIDS 24(6):891-7; 2000. Abstract
Department of Infectious Disease Epidemiology, Imperial College School of Medicine, London, UK. Previous attempts to determine the interactions between filariasis transmission intensity, infection and chronic disease have been limited by a lack of a theoretical framework that allows the explicit examination of mechanisms that may link these variables at the community level. Here, we show how deterministic mathematical models, in conjunction with analyses of standardized field data from communities with varying parasite transmission intensities, can provide a particularly powerful framework for investigating this topic. These models were based on adult worm population dynamics, worm initiated chronic disease and two major forms of acquired immunity (larval- versus adult-worm generated) explicitly linked to community transmission intensity as measured by the Annual Transmission Potential (ATP). They were then fitted to data from low, moderate and moderately high transmission communities from East Africa to determine the mechanistic relationships between transmission, infection and observed filarial morbidity. The results indicate a profound effect of transmission intensity on patent infection and chronic disease, and on the generation and impact of immunity on these variables. For infection, the analysis indicates that in areas of higher parasite transmission, community-specific microfilarial rates may increase proportionately with transmission intensity until moderated by the generation of herd immunity. This supports recent suggestions that acquired immunity in filariasis is transmission driven and may be significant only in areas of high transmission. In East Africa, this transmission threshold is likely to be higher than an ATP of at least 100. A new finding from the analysis of the disease data is that per capita worm pathogenicity could increase with transmission intensity such that the prevalences of both hydrocele and lymphoedema, even without immunopathological involvement, may increase disproportionately with transmission intensity. For lymphoedema, this rise may be further accelerated with the onset of immunopathology. An intriguing finding is that there may be at least two types of immunity operating in filariasis: one implicated in anti-infection immunity and generated by past experience of adult worms, the other involved in immune-mediated pathology and based on cumulative experience of infective larvae. If confirmed, these findings have important implications for the new global initiative to achieve control of this disease.
WAIRIMU PROFKIBERALUCY. "Youth and Morality".". In: Presented paper to Secondary School Students of Kikuyu Day in Kikuyu Division in Kenya.-16 th October,1995. AIDS 24(6):891-7; 1995. Abstract
  
Wairimu MA. "Mobile Telephony and the Transformation of Communication and Media in Kenya." Nairobi: University of Nairobi/FORD Foundation; 2012.
WAIRIMU DRWAWERU. "Presentation of neurosurgical lesions seen in the department between June 2003 and June 2004.". In: Water Sci Technol. 2005;52(1-2):59-66. MBA; 2004. Abstract
In the past decades, anaerobic digestion (AD) has steadily gained importance. However, the technology is not regarded as a top priority in science policy and in industrial development at present. In order for AD to further develop, it is crucial that AD profits from the current fuel issues emerging in the international arena. AD can provide low-cost treatment of sewage and solid domestic wastes, which represents a vast application potential that should be promoted in the developing world. Furthermore, the developments in the last decades in the domain of anaerobic microbiology and technology have generated some interesting niches for the application of AD, such as anaerobic nitrogen removal and the treatment of chlorinated organics. Recently, AD has also generated some serendipities, such as the use of AD in processes for sulphur and calcium removal and the coupling of AD with microbial fuel cells. The international developments in terms of bio-refineries and CO2-emission abatement are of crucial importance with respect to the impetus that AD will receive in the coming decade. There should be little doubt that by placing the focus of AD on the production of green energy and clean nutrients, the future of AD will be assured. PMID: 16180409 [PubMed - indexed for MEDLINE
Wairimu J. Mathematical analysis and dynamical systems : modeling Highland malaria in western Kenya.; 2012. Abstract

The objective of this thesis is to model highland malaria in western Kenya using dynamical systems. Two mathematical models are formulated ; one, on differentiated susceptibility and differentiated infectivity in a metapopulation setting with age structure, the other, a saturated vector feeding rate model with disease induced deaths and varying host and vector populations. In the first model, we consider the different ecosystems identified as malaria hotspots in the western Kenya highlands and consider the ecosystems as different patches. The population in each patch is classified as, either child or, adult. The model will aid in examining the role of ecosystem heterogeneity and age structure to the persistent malaria epidemics in the highlands. We formulate the differentiated susceptibility and infectivity model that extend to multiple patches the well known epidemiological models in one patch. Classifying the hot spots as n patches, we give its mathematical analysis using the theory of triangular system, monotone non-linear dynamical systems, and Lyapunov-Lasalle invariance principle techniques. Key to our analysis is the definition of a reproductive number, Ro, the number of new infections caused by one individual in an otherwise fully susceptible population throughout the duration of the infectious period. The existence and stability of disease-free and endemic equilibrium is established. We prove that the disease free state of the systems is globally asymptotically stable when the basic reproduction number Ro<1, and when Ro>1 an endemic equilibrium is established which is locally and globally asymptotically stable. The model shows that the age structuring reduces the magnitude of infection. Using relevant data we did some simulation, to demonstrate the role played by metapopulation and age structuring on the incidence and Ro. In the second part we formulate a model for malaria with saturation on the vector feeding rates that lead to a nonlinear function in the infection term. The vector feeding rate is assumed, as in the predator prey models, to rise linearly as a function of the host-vector ratio until it reaches a threshold Qv, after which the vector feeds freely at its desired rate. The two populations are variable and drive malaria transmission, such that when the vectors are fewer than hosts, the rate of feeding is determined by the vectors feeding desire, whereas, when the hosts are more than the vectors, the feeding rate is limited by host availability and other feeding sources may have to be sought by the vector. Malaria induced deaths are introduced in the host population, while the vector is assumed to survive with the parasite till its death. We prove that the Disease Free Equilibrium is locally and globally asymptotically stable if Ro<1 and when Ro>1, an endemic equilibrium emerges, which is unique, locally and globally asymptotically stable. The role of the saturated mosquito feeding rate is explored with simulation showing the crucial role it plays especially on the basic reproduction number

WAIRIMU PROFKIBERALUCY. "Gender Issues in Publishing: Content Analysis of Children's Fiction Books. .". In: Kenya Publishers Association Workshop on Gender Issues in Publishing held at Kenyatta International Conference Centre, Nairobi,: 26th to 27th May,1997. AIDS 24(6):891-7; 1997. Abstract
  
WAIRIMU DRWAWERU. "Unge C, S.". In: Proceedings of the Third Conference on Information Technology and Economic Development. 2004 Ghana .INTERCED. MBA; 2008. Abstract
No Abstract
Wairimu J, Sallet G, Ogana W. "Formulation of a vector SIS malaria model in a patchy environment with two age classes." Scientific Research Publishing. 2014;5(10):1535-1545. AbstractWebsite

We formulate an SIS model describing transmission of highland malaria in Western Kenya. The host population is classified as children, age 1-5 years and adults, above 5 years. The susceptibili-ty and infectivity of an individual depend on age class and residence. The large scale system with 6n equations is reduced into a compact form of 3n equations by a change of variables. Then 3n equations are vectorialized using the matrix theory to get a one dimension, compact form of the system, equation in n 3  . Using Vidyasagar theorem [1], the graph of the reduced system is shown to be strongly connected and the system is a monotone dynamical system. This means that circula-tion of malaria parasites among the species and among the patches is strongly connected, hence transmission is sustained. We show that for the n-dimensional age structured system the positive orthant is positively invariant for all positive values of the variables.

WAIRIMU PROFKIBERALUCY. ""Gender, Education and Occupational Prestige in Kenya".". In: UNESCO/UNITWIN CHAIRS STRATEGIC planning workshop at University of Nairobi- 15-17 July ,1997. AIDS 24(6):891-7; 1997. Abstract
  
WAIRIMU PROFKIBERALUCY. "Children's Home Made Toys by Kenya Literature Bureau.". In: Kenya Literature Bureau. AIDS 24(6):891-7; 1985. Abstract
  
Wairimu J, Chirove F, Ronoh M, Malonza DM. "Modeling the effects of insecticides resistance on malaria vector control in endemic regions of Kenya." Elsevier. 2018;Volume 174:49-59. AbstractWebsite

We present a model to investigate the effects of vector resistance to control strategies. The model captures the development of resistance as well as loss of resistance in mosquitoes and how these affect the progress in malaria control. Important thresholds were calculated from mathematical analysis and numerical results presented. Mathematical results reveal the existence of the disease free and endemic equilibria whose existence and stability depends on the control reproduction number, R c. The disease persist when the R c> 1 and dies out when R c< 1. Control strategies use and adherence needs to be highly efficacious to thwart the effects of insecticides resistance. Moreover, it is not enough to just eradicate resistant mosquitoes

WAIRIMU PROFKIBERALUCY. ""Female Characterization in Contemporary Kenyan Fiction".". In: Women Writers Symposium held at Sunset Hotel Kisumu, 3rd to 7 th December, 1997. AIDS 24(6):891-7; 1997. Abstract
  
WAIRIMU PROFKIBERALUCY. "The 8-4-4 system on Education and its implications on career and educational aspirations of students.". In: Staff Seminar Paper to the Department of Educational Foundations. AIDS 24(6):891-7; 1990. Abstract
  
WAIRIMU PROFKIBERALUCY. ""Challenges and Prospects of Female Entrepreneurship in Small Scale Enterprises in Kenya" in African Entrepreneurship and Small Business Development edited by Lettice Kinunda - Rutashoby and Donath Raphael Olemi. Dar.". In: UNE SCO/UNESCO/UNIT WIN CHAIR Workshop , 26 th - 28 th July,2000. AIDS 24(6):891-7; 1999. Abstract
Department of Infectious Disease Epidemiology, Imperial College School of Medicine, London, UK. Previous attempts to determine the interactions between filariasis transmission intensity, infection and chronic disease have been limited by a lack of a theoretical framework that allows the explicit examination of mechanisms that may link these variables at the community level. Here, we show how deterministic mathematical models, in conjunction with analyses of standardized field data from communities with varying parasite transmission intensities, can provide a particularly powerful framework for investigating this topic. These models were based on adult worm population dynamics, worm initiated chronic disease and two major forms of acquired immunity (larval- versus adult-worm generated) explicitly linked to community transmission intensity as measured by the Annual Transmission Potential (ATP). They were then fitted to data from low, moderate and moderately high transmission communities from East Africa to determine the mechanistic relationships between transmission, infection and observed filarial morbidity. The results indicate a profound effect of transmission intensity on patent infection and chronic disease, and on the generation and impact of immunity on these variables. For infection, the analysis indicates that in areas of higher parasite transmission, community-specific microfilarial rates may increase proportionately with transmission intensity until moderated by the generation of herd immunity. This supports recent suggestions that acquired immunity in filariasis is transmission driven and may be significant only in areas of high transmission. In East Africa, this transmission threshold is likely to be higher than an ATP of at least 100. A new finding from the analysis of the disease data is that per capita worm pathogenicity could increase with transmission intensity such that the prevalences of both hydrocele and lymphoedema, even without immunopathological involvement, may increase disproportionately with transmission intensity. For lymphoedema, this rise may be further accelerated with the onset of immunopathology. An intriguing finding is that there may be at least two types of immunity operating in filariasis: one implicated in anti-infection immunity and generated by past experience of adult worms, the other involved in immune-mediated pathology and based on cumulative experience of infective larvae. If confirmed, these findings have important implications for the new global initiative to achieve control of this disease.
WAIRIMU PROFKIBERALUCY. ""Gender and Education in Kenya".". In: All Africa Conference in Nairobi, Kenya s sponsored by Kenya Comparative Education Society -14 th - 17 th June,1994. AIDS 24(6):891-7; 1994. Abstract
  
WAIRIMU PROFKIBERALUCY. ""Factors militating against education of women" The Fountain, Journal of Faculty of Education, No. 1.". In: The Foundation, Journal of Faculty of Education, No. 1. AIDS 24(6):891-7; 2002. Abstract
Department of Infectious Disease Epidemiology, Imperial College School of Medicine, London, UK. Previous attempts to determine the interactions between filariasis transmission intensity, infection and chronic disease have been limited by a lack of a theoretical framework that allows the explicit examination of mechanisms that may link these variables at the community level. Here, we show how deterministic mathematical models, in conjunction with analyses of standardized field data from communities with varying parasite transmission intensities, can provide a particularly powerful framework for investigating this topic. These models were based on adult worm population dynamics, worm initiated chronic disease and two major forms of acquired immunity (larval- versus adult-worm generated) explicitly linked to community transmission intensity as measured by the Annual Transmission Potential (ATP). They were then fitted to data from low, moderate and moderately high transmission communities from East Africa to determine the mechanistic relationships between transmission, infection and observed filarial morbidity. The results indicate a profound effect of transmission intensity on patent infection and chronic disease, and on the generation and impact of immunity on these variables. For infection, the analysis indicates that in areas of higher parasite transmission, community-specific microfilarial rates may increase proportionately with transmission intensity until moderated by the generation of herd immunity. This supports recent suggestions that acquired immunity in filariasis is transmission driven and may be significant only in areas of high transmission. In East Africa, this transmission threshold is likely to be higher than an ATP of at least 100. A new finding from the analysis of the disease data is that per capita worm pathogenicity could increase with transmission intensity such that the prevalences of both hydrocele and lymphoedema, even without immunopathological involvement, may increase disproportionately with transmission intensity. For lymphoedema, this rise may be further accelerated with the onset of immunopathology. An intriguing finding is that there may be at least two types of immunity operating in filariasis: one implicated in anti-infection immunity and generated by past experience of adult worms, the other involved in immune-mediated pathology and based on cumulative experience of infective larvae. If confirmed, these findings have important implications for the new global initiative to achieve control of this disease.
WAIRIMU PROFKIBERALUCY. ""Gender Equity and Education. The Situation of Kenya". Adult Educator, The Journal of the Kenya Adult Education Association. Vol. 2 Number 1.". In: Adult Educator, The Journal of the Kenya Adult Education Association. Vol. 2 Number 1. AIDS 24(6):891-7; 1995. Abstract
  
WAIRIMU DRWAWERU. "Poster session in Mombasa during the 6th Biennial regional pathologists conference (2002) co-author with Prof Kigondu.". In: Water Sci Technol. 2005;52(1-2):59-66. MBA; 2002. Abstract
In the past decades, anaerobic digestion (AD) has steadily gained importance. However, the technology is not regarded as a top priority in science policy and in industrial development at present. In order for AD to further develop, it is crucial that AD profits from the current fuel issues emerging in the international arena. AD can provide low-cost treatment of sewage and solid domestic wastes, which represents a vast application potential that should be promoted in the developing world. Furthermore, the developments in the last decades in the domain of anaerobic microbiology and technology have generated some interesting niches for the application of AD, such as anaerobic nitrogen removal and the treatment of chlorinated organics. Recently, AD has also generated some serendipities, such as the use of AD in processes for sulphur and calcium removal and the coupling of AD with microbial fuel cells. The international developments in terms of bio-refineries and CO2-emission abatement are of crucial importance with respect to the impetus that AD will receive in the coming decade. There should be little doubt that by placing the focus of AD on the production of green energy and clean nutrients, the future of AD will be assured. PMID: 16180409 [PubMed - indexed for MEDLINE
WAIRIMU PROFKIBERALUCY. "University Student's Attitudes and Perceptions Towards the Teaching Profession and the Teaching ractice, Kenya Journal of Education, Vol. 6 No. 13, Bureau of Educational Research, Kenyatta University.". In: Kenya Journal of Education, Vol. 6 No. 13, Bureau of Educational Research, Kenyatta University. AIDS 24(6):891-7; 1996. Abstract
  
WAIRIMU DRWAWERU. "Poster session at Aga Khan hospital on malignant fibrous histiocytoma of the scalp .". In: Proceedings of the Third Conference on Information Technology and Economic Development. 2004 Ghana .INTERCED. MBA; 2005. Abstract
No Abstract
Wairire GG. "The Kenyan context of Social work practice; Challenges and Opportunities.". In: International Day celebrations at the Institute of Social Work. Volda University College - Norway; 2008.
Wairire GG. "The Impact of Structural Adjustment Programmes on Social Work and Welfare in Kenya.". In: 2010 Joint World Conference on Social Work and Social Development: The Agenda. Hong Kong, China; 2010.
Wairire GG. "Professional Social Work in Actualizing Millennium Development Goals in Eastern Africa.". In: One Day International Social Work Symposium themed ‘Recasting Professional Social Work for Poverty Reduction and Realization of Millennium Development Goals in Africa. University of Nairobi, Kenya; 2011.
Wairire G. "Living but Leaving: Therapy in Light and Right of Life and Death in Traditional-Cum-Contemporary Societies." International Journal of Psychological Studies. 2018;10(4):79-94.
Wairire GG. "The Global Agenda For Social Work And Social Development In The Context Of Existing Social Work Realities In East Africa.". In: International Symposium themed ‘Social Work and Poverty Reduction in East Africa: The Role of Social Work. Carinthia University of Applied Sciences, Austria; 2012.
Wairire GG. "Emerging Trends and Challenges of Social Work Education in the new Millennium.". In: 5th Pan African Social Work Conference. Pan Afric Hotel; 1999.
Wairire GG,(Eds) SR. "The Challenge for Social Work in the Kenyan Context of Political Conflict.". In: Social Work facing Political Conflict. London: Venture Press; 2008.
Wairire GG. "Psychosocial care for orphaned and vulnerable children in Kenya.". In: International Symposium for Practitioners and Policy Specialists on addressing the needs of Young Carers. Safari Park Hotel, Nairobi; 2006.
Wairire GG. "Prospects and challenges for social work in poverty reduction and the realization of millennium development goals in East Africa.". In: World Conference for Social work themed ‘Social Work and Social Development 2012: Action and Impact. Stockholm- Sweden; 2012.
Wairire GG. "Neo-liberal Globalization and its impact on Social Work Education in Kenya; Prospects and Retrospect.". In: International Symposium at the 7 York University. Toronto - Canada; 2007.
Wairire GG. "The Asians in the Kenyan Industry.". In: Commerçants et industriels d'origine indo- pakistanaise au Kenya. Regards sociologiques", in Michel ADAM (Eds) ‘‘L’Afrique Indienne Les Minorite’s d’origine Indo-Pakistanaise en Afrique Orientale’. Paris: IFRA - Karthala Publishers; 2009.
Wairire GG. "Empowerment in Social Work Implementation Strategies – Experiences and Challenges in the Kenyan Context.". In: International Symposium organized by Volda University College, Norway and Partners in Kenya. Fish Eagle Inn, Naivasha; 2009.
Wairire GG. "Internationalizing Social Work Education: The African experience.". In: National Seminar on Social Work Education and Practice: Trends and Perspectives. School Of Social Work, Tata Institute of Social Sciences, Mumbai – India; 2011.
Wairire GG, wa Mungai N, Mungai K'ethe. "Some Social Work Implications In Emerging Approaches for Children’s Rights in Kenya." International Social Work. 2013.
Wairire GG. "Social Work In Post Traumatic Stress Related Scenarios In Kenya.". In: A paper presented in a guest lecture. Alpen Adria University - Klugenfurt , Austria; 2012.
Wairire GG. "The Development of Social Work Education in Africa.". In: World Conference for Social work themed ‘Social Work and Social Development 2012: Action and Impact. Stockholm- Sweden; 2012.
Wairire GG. "Transforming Social work Theory into Practice: The Kenyan Experience.". In: the 6th Pan African Social Work Conference, Kenyatta International Conference Center. Nairobi; 2005.
Wairire GG, Kiboro CN. "Professional Social Work in East Africa: Towards Social Development, Poverty Reduction and Gender Equality.". In: Social Work Perspectives in Poverty Reduction and Social Development in Kenya. Kampala: Fountain Publishers; 2014.
Wairire GG. "Social Work and the Metamorphosis of Participatory Development in Kenya; the Case of Constituency Development Fund.". In: the 7th Pan African Social Work Conference. Africana Hotel, Kampala - Uganda; 2007.
Wairire GG. "Emerging alternatives for challenging adversities in rural and urban communities: the case of Vyamas in Kenya.". In: International Conference on Strengths Based Practices in Social Work and Human Services. Dhulikhel Lodge Resort- Kathmandu, Nepal; 2012.
Wairire GG. "Some Challenges for Social Workers in Political Conflicts: The Case of Kenya’s Post Election Crisis.". In: 34th Global Social Work Congress organized by the International Association of Schools of Social Work. International Convention Centre, Durban, South Africa; 2008.
Wairire GG, Gachoka HW. "Organisation Justice and the Management of Change: A Case of Outplaced Employees in Kenyan Parastatal Organizations." International Journal of Knowledge, Culture and Change Management. 2008;7(12).
Wairire GG. "Organizing Field Placements for Social Work Students as an integral part of the Social Work Degree Programme.". In: Strengthening Social Welfare Workforce in Africa Conference. Southern Sun Cape Sun Hotel, Cape Town, South Africa; 2010.
Wairire GG. "Field Practice Education for Social Work in Kenya: The Missing Ingredients.". In: Association of South African Social Work Education Institutions (ASASWEI) Conference 2011. Birchwood Hotel, Gauteng, South Africa; 2011.
Wairire GG. "Youth Vulnerability to Drug Abuse in Kenya.". In: National Youth Consensus Workshop on Drug Demand Reduction. Nairobi; 1997.
Wairire GG, Mwabeyo Z. "Social protection policies for orphaned and vulnerable children in East Africa.". In: World Conference for Social Work themed ‘Social Work and Social Development 2012: Action and Impact. Stockholm - Sweden; 2012.
Wairire GG. "The Role of Professional Social Work Practice in Child Protection in Kenya.". In: national symposium for Child Rights and Prevention Against Abuse. Silver Springs Hotel, Nairobi; 2000.
and Wairire GG, Muiruri J. "Handbook of Social Work and Social Development Practice in Africa.". In: Afrocentric strengths-based community work practice: The case of vyamas in Kenya . Ashgate Publishing Ltd; Forthcoming.
Wairire GG. "Multi Cultural Society and its challenges for social workers in unequal scenarios: The case of Asians in Kenya.". In: 33rd World Congress of Schools of Social Work. Santiago - Chile; 2006.
Wairire GG. "Some Aspects for harmonized social work education and practice in East Africa.". In: Association of Schools of Social Work in Africa (ASSWA) 2012 Conference. Ingwenyama Conference and Sports Resort, White River – Nelspruit, South Africa; 2012.
Wairire G.G, wa Mungai N, Mungai K’ethe. "Some Social Work Implications In Emerging Approaches for Children’s Rights in Kenya ." International Social Work. 2015;58(2):297-308.
Wairore JN, Mureithi SM, Wasonga OV, Nyberg G. "Benefits Derived from Rehabilitating a Degraded Semi‐Arid Rangeland in Private Enclosures in West Pokot County, Kenya." Land Degradation and Development. 2015.
Wairore JN, Mureithi SM, Wasonga OV, Nyberg G. "Benefits Derived from Rehabilitating a Degraded Semi-Arid Rangeland in Private Enclosures in West Pokot County, Kenya." Land Degradation & Development. 2015. Abstract
n/a
WAITA SEBASTIAN, Aduda B. "Structural and Optical Characterization of Polymer based TiO2 films for Photovoltaic Applications.". In: Solar World Congress, 2017. Abu Dhabi, United Arab Emirates; 2017.
WAITA SEBASTIAN, Aduda B. "Emphasis on Photovoltaic (PV) Solar System Installation Training: A Case Study of a PV Solar System Installed in Makueni County, Kenya." International Advanced Research Journal in Science, Engineering and Technology. 2017;3(8):31-37. AbstractJournal Article Website

The installation of Photovoltaic (PV) solar systems in institutions as well as homesteads in the rural areas in
Kenya is increasing at a high rate; and so is the need for the stake holders to make sure the PV solar systems are professionally designed, sized, installed and maintained. In PV solar system installation, the designing, sizing and the installation are very critical steps. A wrongly designed, sized and installed system will not perform optimally and will underperform (for undersized systems) and waste energy and resources (for oversized systems). Furthermore, undersized systems do not perform to the user’s expectation discouraging the user and eventually a negative customer attitude creeps in which may affect the uptake of solar PV systems. On the other hand, an oversized PV system is extra expense on the side of the client, creating an exaggerated high cost of PV solar systems, again discouraging potential clients from the adoption of the technology. Both scenarios mean loss of business, jobs and the economic and social benefits associated with PV technology. We present a case study of poorly installed PV systemsin Makueni County, Kenya. We observed that the solar modules pecifications at the back of the modules were not clearly done, the batteries were poorly matched and the cables used in the installation were undersized. Due to these issues, even a normal television set was not able to work since the system was installed four years ago (in 2012).The above case emphasizes the need for training in PV solar system design, sizing, installation, and maintenance.
Key words: Photovoltaic (PV), modules, solar system, Installation, training, professional

WAITA SEBASTIAN. "Extraction of Resistances in Dye Sensitized Solar Cells Fabricated from Obliquely Sputtered TiO2 Films,.". In: Opto-Electronics Devices: Their potential for Sustainable Development, conference held at the Department of Physics, University of Nairobi. DEPT OF PHYSICS, UON: Elsevier; 2010. Abstract

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

WAITA SEBASTIAN. "Performance of TiO2/In(OH)iSj/Pb(OH)xSy Composite ETA Solar Cell Fabricated from Nitrogen Doped TiO2 Thin Film Window Layer." International Journal of Materials Engineering . 2013; 3(2):11-16.
WAITA SEBASTIAN. "Columnar and passivated nanoporous TiO2 based excitonic solar cell.". In: US/Africa workshop on frontiers in Material Science, Abuja, Nigeria. Abuja, Nigeria: Elsevier; 2007. Abstract

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

Waita SM, Aduda BO, Mwabora JM, Niklasson GA, Granqvist CG, Boschloo G. "Electrochemical characterization of TiO2 blocking layers prepared by reactive DC magnetron sputtering." Journal of Electroanalytical Chemistry . 2009;637:79-.
WAITA SEBASTIAN. "Effect of nitration on pressed TiO2 photoelectrodes for dye-sensitized solar cells." African Journal of Science and Technology,Vol. 8 No. 2, pp 63-71. 2007. AbstractWebsite

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

WAITA SEBASTIAN. "Structural and Optical Characterization of Nitrogen Doped TiO2 Thin Films Deposited by Spray Pyrolysis on Fluorine Doped Tin Oxide (FTO) Coated Glass Slides." International Journal of Energy Engineering. 2012;2(3):67-72. AbstractWebsite

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

Waita 6. S, Aduda B. "Photovoltaic (PV) Solar Sizing for Off grid Solar Home Systems." International Journal of Applied and Natural Sciences . 2016;5(5):73-78. Abstract

The sun releases tremendous amount of energy, which if harnessed would provide all energy needs of mankind. One of the strategies to trap this immense energy is the use of solar modules/panels. However, these solar modules need to be properly sized and installed to be able to function and generate electricity optimally. The successful installation of an off grid Photovoltaic (PV) solar system is a process that begins with a site visit to the area of installation, the determination of the client’s energy needs, installation of the solar PV system, commissioning of the installed solar system and ends with user training. Every step is critical for it determines the final performance of the solar system and hence the delicate balance between a satisfied or unsatisfied client. However, the system sizing step tends to attract more attention for it determines the system size and the matching of the balance of system components and so if this is not properly done, then the entire system may not perform as intended. Most documented sizing methods tend to be too complicated and require significant computer knowledge in simulation, modeling and even programming. For practical purposes, many designers and PV installers, especially in developing countries have basic education may not be well equipped for these complicated sizing methods. Furthermore, very few have been professionally trained in PV solar system Sizing and although there are commercially available sizing software’s, they are too expensive for majority of the people and even if available, they are too complicated for them. In actual sizing therefore, most untrained PV technicians use mere estimates that may not be appropriate for the outcome, more often than not is disappointing. We present a simple sizing method that can easily be learned and applied in a simple calculation, for example in a simple excels sheet formulas for easier sizing of PV systems The method is recommended for adoption in developing countries for faster dissemination of professional PV services in system sizing.

WAITA SEBASTIAN. "Application of Dye-Sensitized Solar Cell Technology in the Tropics: Effects of Radiation Intensity and Temperature on DSSC Performance." International Journal of Advanced Renewable Energy Research (IJARER). 2012;1(2):17-25. AbstractWebsite

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

Waita SM, Mwabora JM, Aduda BO, Niklasson GA, Lindquist E, Granqvist CG. "Performance of Dye Sensitized Solar Cells fabricated from Obliquely DC Sputtered TiO2 Films." Africa Jnl. of Science and Technology. 2006;7(2):125-139. Abstract

Nanocrystalline porous titanium oxide films of varying thickness have been deposited in ambient by reactive DC magnetron sputtering at a fixed but high oblique angle of 60o, and then converted to TiO2 by thermal annealing at 450 oC for 4 hours. X-ray diffraction analysis of the films showed that they were predominantly of anatase phase, whereas the as deposited films were amorphous. Top–down scanning electron microscope images of the annealed films showed cauliflower-like surfaces, and exhibited well-defined columns. Atomic force microscope images revealed rough surfaces with larger nodules for thicker films. With the annealed films as the working electrodes in a dye-sensitised solar cell, it was established that the photoelectric conversion efficiency increased with the film thickness. The highest efficiency was ~ 3.3 % at an illumination intensity of 100 W/m2.

Waita SM, Aduda BO, Mwabora JM, Niklasson GA, Granqvist CG, Boschloo G. "Electrochemical characterization of TiO2 blocking layers prepared by reactive DC magnetron sputtering.". 2009.Website
WAITA SEBASTIAN, Aduda B. "PHOTOVOLTAIC (PV) SOLARSYSTEM SIZING FOR OFF GRID SOLAR HOME SYSTEMS." International Journal of Applied and Natural Sciences (IJANS). 2016;5(5):2319-4022. Abstract

The sun releases tremendous amount of energy, which if harnessed would provide all energy needs of mankind.
One of the strategies to trap this immense energy is the use of solar modules/panels. However, these solar modules need to be properly sized and installed to be able to function and generate electricity optimally. The successful installation of an off grid Photovoltaic (PV) solar system is a process that begins with a site visit to the area of installation, the determination of the client’s energy needs, installation of the solar PV system,
ommissioning of the installed solar system and ends with user training. Every step is critical for it determines the final performance of the solar system and hence the delicate balance between a satisfied or unsatisfied client. However, the system sizing step tends to attract more attention for it determines the system size and the matching of the balance of system components and so if this is not properly done, then the entire system may not perform as intended. Most documented sizing methods tend to be too complicated and require significant computer knowledge in simulation, modeling and even programming. For practical purposes, many designers
and PV installers, especially in developing countries have basic education may not be well equipped for these complicated sizing methods. Furthermore, very few have been professionally trained in PV solar system Sizing and although there are commercially available sizing software’s, they are too expensive for majority of the people and even if available, they are too complicated for them.In actual sizing therefore, most untrained PV technicians use mere estimates that may not be appropriate for the outcome, more often than not is disappointing. We present a simple sizing method that can easily be learned andapplied in a simple calculation, for example in a simple excels sheet formulas for easier sizing of PV systems.The method is recommended for adoption in developing countries for faster dissemination of professional PV services in system sizing.

Waita SM, Aduda BO, Mwabora JM, Niklasson GA, Lindquist SE, Granqvist CG. DC sputter deposited TiO2 photoelectrodes: Effect of deposition angle on the efficiency of dye sensitized solar cell..; 2008.
WAITA SEBASTIAN. "Electrochemical Characterization of TiO2 Blocking Layers Prepared by Reactive DC Magteron Sputtering.". In: African School on Nanoscience for solar Energy Conversion, Addis Ababa, Ethiopia. AKAKI CAMPUS, ADDIS ABABA: Elsevier; 2010. Abstract

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

WAITA SEBASTIAN. "Charge transport in bare and MgO-coated TiO2 thin films and in dye-sensitized solar cells: effect of film thickness.". In: ICE2007, International conference on Electroceramics, Arusha, Tanzania. Arusha, Tanzania: Elsevier; 2007. Abstract

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

WAITA SEBASTIAN. "Electrochemical characterization of TiO2 blocking layers prepared by reactive DC magnetron sputtering." Journal of the Electroanalytical Chemistry 637, 79-83.. 2009;637. AbstractWebsite

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

WAITA SEBASTIAN, Aduda B. "Emphasis on Photovoltaic (PV) Solar System Installation Training: A case study of a PV solar System Installed in Makueni County, Kenya." International Advanced Research Journal in Science, Engineering and Technology (IARJSET). 2016;3(3). Abstract

The installation of Photovoltaic (PV) solar systems in institutions as well as homesteads in the rural areas in Kenya is increasing at a high rate; and so is the need for the stake holders to make sure the PV solar systems are professionally designed, sized, installed and maintained. In PV solar system installation, the designing, sizing and the installation are very critical steps. A wrongly designed, sized and installed system will not perform optimally and will underperform (for undersized systems) and waste energy and resources (for oversized systems). Furthermore, undersized systems do not perform to the user’s expectation discouraging the user and eventually a negative customer attitude creeps in which may affect the uptake of solar PV systems. On the other hand, an oversized PV system is extra expense on the side of the client, creating an exaggerated high cost of PV solar systems, again discouraging potential clients from the adoption of the technology. Both scenarios mean loss of business, jobs and the economic and social benefits associated with PV technology. We present a case study of poorly installed PV systemsin Makueni County, Kenya. We observed that the solar modules specifications at the back of the modules were not clearly done, the batteries were poorly matched and the cables used in the installation were undersized. Due to these issues, even a normal television set was not able to work since the system was installed four years ago (in 2012).The above case emphasizes the need for training in PV solar system design, sizing, installation, and maintenance.

WAITA SEBASTIAN. "Performance of Dye Sensitized Solar Cells Fabricated From Obliquely DC Sputtered TiO2 Films." African Journal of Science and Technology Vol. 7, No. 2, 125-138. 2006. AbstractWebsite

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

WAITA SEBASTIAN. "Application of Dye-Sensitized Solar Cell Technology in the Tropics: Effects of Air Mass on Device Performance." International Journal of Renewable Energy Research (IJRER). 2012;2(3):369-375. AbstractWebsite

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

Waita SM, Mwabora JM, Aduda BO, Niklasson GA, Lindquist S – E, Granqvist CG. "Performance of Dye Sensitized Solar Cells fabricated from Obliquely DC Sputtered TiO2 Films”,." Africa Jnl. of Science and Technology, Series. 2006;7(2):125-139. Abstract

Nanocrystalline porous titanium oxide films of varying thickness have been deposited in ambient by reactive
DC magnetron sputtering at a fixed but high oblique angle of 60o, and then converted to TiO2 by thermal
annealing at 450 oC for 4 hours. X-ray diffraction analysis of the films showed that they were predominantly of
anatase phase, whereas the as deposited films were amorphous. Top–down scanning electron microscope
images of the annealed films showed cauliflower-like surfaces, and exhibited well-defined columns. Atomic
force microscope images revealed rough surfaces with larger nodules for thicker films. With the annealed films
as the working electrodes in a dye-sensitised solar cell, it was established that the photoelectric conversion
efficiency increased with the film thickness. The highest efficiency was ~ 3.3 % at an illumination intensity of
100 W/m2.

Waita, S.M., Simiyu J, Kiragu, A.N., Imali V, Aduda B. A simple low cost solar panel/cell characterization experiment for senior undergraduate Students.; 2015.
Waita SM, Aduda BO, Mwabora JM, C.G G, Niklasson GA, Hagfeldt A, G B. "Electron Transport and Recombination in Dye Sensitized Solar Cells fabricated from obliquely sputter deposited and thermally annealed TiO2 films." Journal of Electroanalytical Chemistry. 2007;(605):151-156. Abstract

Dye sensitized solar cells based on annealed titanium dioxide films prepared by oblique reactive DC magnetron sputtering have been investigated in detail. Electron transport and recombination were studied using intensity-modulated photocurrent and photovoltage spectroscopy. Electron transport time as well as lifetime was found to increase upon lowering of the light intensity and to increase upon increasing the thickness of the TiO2 film. The properties are very similar to those observed for solar cells based on colloidal TiO2 films despite the morphologies being very different. In all cases, films are composed of a porous assembly of TiO2 nanocrystals. Grain boundaries with associated trap and/or energy barriers may explain the observed transport properties.

WAITA SEBASTIAN. "Training on Photovoltaic Application and Installations.". In: PV TRAINING AND INSTALLATION. Department of Physics, University of Nairobi: Elsevier; 2011. Abstract

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

Waita SM, Aduda BO, Mwabora, J.M; Niklasson GA, Lindquist SE, Granqvist CG. DC sputter deposited TiO2 photoelectrodes: Effect of deposition angle on the efficiency of dye sensitized solar cell..; 2008.
WAITA SEBASTIAN. "Optical characterization of sputtered TiO2 compact under layers for dye-sensitized solar cell applications.". In: 1st International conference on Solar Energy Materials Dar Es Salaam, Tanzania. Dar es Salaam: Elsevier; 2009. Abstract

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

WAITA SEBASTIAN. "Nanostructured TiO2 for dye sensitized photoelectrochemical solar cells.". In: ICTP-NCNNC . Beijing, China: Elsevier; 2006. Abstract

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

WAITA SEBASTIAN. " Emphasis on Photovoltaic (PV) Solar System Installation training: A case study of a PV Solar System Installed in Makueni County, Kenya ." International Advanced Research Journal in Science, Engineering and Technology . 2016;3(8). Abstract

The installation of Photovoltaic (PV) solar systems in institutions as well as homesteads in the rural areas in
Kenya is increasing at a high rate; and so is the need for the stake holders to make sure the PV solar systems are
professionally designed, sized, installed and maintained. In PV solar system installation, the designing, sizing and the
installation are very critical steps. A wrongly designed, sized and installed system will not perform optimally and will
underperform (for undersized systems) and waste energy and resources (for oversized systems). Furthermore,
undersized systems do not perform to the user’s expectation discouraging the user and eventually a negative customer
attitude creeps in which may affect the uptake of solar PV systems. On the other hand, an oversized PV system is extra
expense on the side of the client, creating an exaggerated high cost of PV solar systems, again discouraging potential
clients from the adoption of the technology. Both scenarios mean loss of business, jobs and the economic and social
benefits associated with PV technology. We present a case study of poorly installed PV systemsin Makueni County,
Kenya. We observed that the solar modules specifications at the back of the modules were not clearly done, the
batteries were poorly matched and the cables used in the installation were undersized. Due to these issues, even a
normal television set was not able to work since the system was installed four years ago (in 2012).The above case
emphasizes the need for training in PV solar system design, sizing, installation, and maintenance

WAITA SEBASTIAN. "Electron Ttransport and Recomination in Dye Sensitized Solar Cells Fabricated from Obliquely Sputtered and Thermally Annealed TiO2 films." Journal of the Electroanalytical Chemistry 605(2), 151-156.. 2007. AbstractWebsite

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

WAITA SEBASTIAN. "Dark J-V Characterization of a Dye-Sensitized Module." International Journal of Professional Practice (IJPP),. 2012;3(1&2):165-168. AbstractWebsite

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

WAITA SEBASTIAN, Simiyu J, Kiragu AN, Imali V, Aduda B. "A Simple Low Cost Solar Cell Characterization Laboratory Experiment for Senior Undergraduate Students.". 2014. AbstractFull text link

A simple low cost solar cell characterization experiment has been developed for senior undergraduate students in the Department of Physics, University of Nairobi. Experiments were conducted with 20 W and 40 W power solar modules on different sunny days and times at the open roof top of Physics Department, University of Nairobi. It was observed that the current- voltage (I-V) curves obtained for all the measurements were very similar for each module despite the day or time of measurement. The fill factor (FF), short circuit current (Isc), open circuit voltage (Voc), maximum current (Im) and maximum voltage (Vm) were very similar to those supplied by the manufacturer, an indication of reliability and accuracy of the method. The technique eliminates the need for expensive characterization equipment like solar simulators.

WAITA SEBASTIAN. Workshop on Research Grant and Project Grant Training on proposal writing. NAIROBI: Elsevier; 2011. Abstract

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";}

Waita SM, Ogacho AA, Aduda BO. "Charge Transport in Bare and MgO-coated TiO2 Thin Films and in Dye-Sensitized Solar Cells: Effect of Film Thickness.". In: Electroceramics (ICE 2007). Arusha Tanzania; 2007. Abstract

Electron transport in bare and MgO-coated colloidal TiO2 thin films has been studied using surface photovoltage spectroscopy (SPS), while the charge transport in dye-sensitized solar cells based on annealed titanium dioxide films prepared by oblique reactive DC magnetron sputtering has been studied by the intensity–modulated photocurrent and photovoltage spectroscopy (IMPS and IMVS). The SPS results obtained showed a dispersive electron transport with strongly retarded photocurrents, and the electron diffusion coefficient measured in a parallel plate capacitor arrangement was observed to be strongly dependent on film thickness. Further, the MgO buffer layer initially enhanced the effective diffusion coefficient but beyond certain MgO concentration the diffusion coefficient decreased. From the IMPS/IMVS studies, the electrons transit more rapidly at higher light intensities whereas the electron lifetime diminishes with increase in light intensity. The electron transit and lifetimes were found to increase with film thickness. Grain boundaries with associated trap and / or energy barriers and their passivation by MgO are proposed to explain the observed transport properties.

Waitaa SM, Aduda BO, Mwabora JM, Granqvist CG, Lindquist SE, Niklasson GA, Hagfeldtc A, Boschloo G. "Electron transport and recombination in dye sensitized solar cells fabricated from obliquely sputter deposited and thermally annealed TiO2 films.". 2007.Website
Waite BH, Njoroge K. "Principal diseases of maize, sorghum and millet in the semi-arid areas of Kenya." East African Agriculture and Forestry Journal: . 1984;40: :197.
Waithaka PN, Mwaura FB, Wagacha JM, Gathuru EM. "Isolation of Actinomycetes from Geothermal Vents of Menengai Crater in Kenya." Int J Mol Biol Open Access. 2017;2(5):00031.
Waithaka K. "Growth And Runner Production Of Everbearing Strawberries In Kenya."; 1985. Abstract

Strawberry production in the tropics is hampered by lack of enough propagative material. Propagation in Kenya is mainly by crown division because the continuous short day condition in the tropics does not favour enough runner production. Physical manipulation of the parent plants proved a little beneficial in runner production in two everbearing cultivars. Defoliation of the older leaves promoted runner production in Turft and Tioga. This resulted in an increase of daughter plants for propagation. Defoliation had no influence in all cultivars used in the study. Deblossoming promoted runner production in Turft, but failed in Tioga and Aiko. Defoliation and deblossoming or a combination of the two treatments failed to promote runner production in Aiko.

Waithaka SK, Njagi EN, Ngeranwa JN, Kigondu CS. "Reference Ranges for Some Biochemical Parameters in Adult Kenyans.". 2009. Abstract

To establish the reference ranges of some biochemical parameters for adult Kenyan population. METHODS: In a prospective involving 1100 healthy blood donors (age: 18-55 yr) in Kenyatta National Hospital, Kenya reference ranges of some biochemical analytes were constructed by using the parametric methods to estimate 2.5 and 97.5 percentiles of distribution. RESULTS: The reference ranges of the analytes were: alanine aminotransferase (ALT) [males (0-39) U/L, females (0-34) U/L]; aspartate aminotransferase (AST) [males (6-40) U/L, females (3-37) U/L]; alkaline phosphatase (ALP) [males (13-201) U/L, females (5-227) U/L]; albumin (ALB) [males (29-52) g/L, females (28-50) g/L]; protein (PROT) [males (57-89) g/L, females (56-88) g/L]; creatinine (CREAT) [males (59-127) μmol/L, females (54-122) μmol/L]; glucose (GLU) [males (2.8-6.8) mmol/L, females (2.6-7) mmol/L]; phosphorus (PHOS) [males (0.5-2.0) mmol/L, females (0.2-2.4) mmo/L]; potassium (POT) [males (3-5.3), females (3.1-5.1) mmo/L]; sodium (SOD) [males (111-153) mmol/L, females (117-151) mmol/L]; Blood urea nitrogen BUN [males (1.5-5.9) mmol/L, females (1.2-6.0) mmol/L] and Uric acid (UA) [males (120-458) μmol/L, females (89-415) μmol/L]. Age differences in the established reference ranges were observed in ALT, ALB, CREAT, ALP and UA in males and in ALT, ALB, and CREAT in females. Gender differences were observed in ALT, AST, ALB, CREAT and UA in the 18-28 yr old, ALT, AST, ALB, SOD and UA in 29-39 yr old and AST, ALB, and UA in 40-50 yr old. CONCLUSION: Age and sex specific reference ranges of some biochemical parameters were established some of which were different from those reported in literature. There therefore the need for each clinical chemistry laboratory to establish its own ranges

Waithaka PN, Mwaura FB, Wagacha JM, Gathuru EM, Githaiga BM. "Antimicrobial Properties of Actinomycetes Isolated from Menengai Crater in Kenya." CellBio. 2017;06(2):13.
Waithaka K. "Liatris forcing in Kenya."; 1985.
Waithaka K. "Flower Bulb Forcing In Kenya."; 1986. Abstract

Cut flowers are among the most important horticultural produce in Kenya for domestic and export markets. Other than carnations, roses, statice, mollucela etc., bulbous plants such as liatris, arabicum, tuberose, ornithogalum, orchids, gladiolus and alstroemeria contribute a small percentage of cut flower production in Kenya. Some of these bulbous plants are temperate in origin and require low temperature treatment for dormancy release, flower induction and floral stalk elongation. Due to lack of outdoor chilling temperatures in the tropics the use cool chambers (3–5°C) is practised to chill propagative materials such as gladiolus and liatris corms. The other bulbous plants only require forcing practices such as irrigation, fertilization, and pest control to produce good quality cut flowers. The use of growth regulators in flower-bulb forcing has been minimal due to the high cost of the chemicals.

Waithaka K. "Application Of Plant Tissue Culture In Horticultural Production."; 1988. Abstract

The term 'plant tissue culture' is normally used as a 'blanket' term to cover the cultivation of all plant parts whether a single cell, a group of cells or an organ on an artificial medium. The in vitro cultures are now being used as tools for the study of various basic problems in experimental biology and agriculture. The two main applications of plant tissue culture in horticultural production are in propagation and sanitation. Tissue culture is being used effectively in asexual clonal propagation of various horticultural crops. Orchids, carnations, roses, gerbera, chrysanthemums, potatoes, strawberries, apples and coffee have all been successfully cloned in vitro and the list is increasing daily. Recovery of pathogen - free plants by meristem tip culture has become a common practice in producing virus-free stock material of vegetatively propagated plants. Other areas where tissue culture can contribute to horticulture include embryo culture and germplasm preservation and storage.

Waithaka SM, Ngugi JK, Kirago P. "Effects of dividend policy on share prices: A case of companies in Nairobi Securities Exchange." Prime Journal of Business Administration and Management (BAM). 2012;2(8):642-648. Abstracteffects_of_dividend_policy_on_share_prices-__a_case_of_companies_listed_on_nse.pdf

Dividend policy refers to management’s long-term decision on how to deploy cash flows from business activities-that is, how much to invest in the business, and how much to return to shareholders. The determination of the amount of dividends payable is an important decision that companies undertake since the objective of the firm is to maximize the shareholders’ wealth as measured by the price of the company’s common stock. The study concluded that higher pre-tax risk adjusted returns associated with higher dividend yield stocks to compensate investors for the tax
disadvantages of returns affected tax incentives and that investors whose portfolios had low systematic risk
preferred high-pay-out stocks. This was consistent with Brennan’s model (Brennan, 1970).The study also found out
that an increase in firms’ stocks trading volume affected the share price and investors who wanted current
investment income owned shares in high dividend payout firms and this was consistent with the findings of Botha (1985). The study further concludes that free cash flow caused conflict between management and shareholders which in turn affected the share price and that the executive option plan persuaded management to reduce corporate dividends by an amount that was equal to the option plan. This was consistence with the findings of Lambert, Lanen and Larker (1989). The study recommends that companies consider all pertinent issues before issuing dividends.Since the share market is positively responsive to the dividend announcement, companies should always strive to pay divided consistently for their shares to perform well at the stock exchange. Dividend policy have an effect on the share prices of the firms quoted at NSE thus, companies (firms) should pay dividends to maintain high share prices.

WAITHIRA MRSMIRIE. "Mirie W., Musandu J., Health Practices as Reported by Mothers in a Semi Arid Area of Kenya. International Child Health: A Digest of Current Information, 1999.". In: The Journal of Experimental Biology 213, 3223 . ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1; 1999. Abstract
Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products. This is an informative, thorough and easy to understand guidebook that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible, viable alternative in achieving sustainable development among resource-poor communities.
WAITHIRA MRSMIRIE. "Mirie W., Nutrition and Health Survey of Children below five years of Garissa and Ijala Districts, North Eastern Kenya.". In: The Journal of Experimental Biology 213, 3223 . ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1; 2001. Abstract
Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products. This is an informative, thorough and easy to understand guidebook that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible, viable alternative in achieving sustainable development among resource-poor communities.
WAITHIRA MRSMIRIE. "Mirie W., Et al. A study of knowledge Attitudes and Practices of Weaning of Mothers at Kenyatta National Hospital.". In: The Journal of Experimental Biology 213, 3223 . ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1; 1993. Abstract
Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products. This is an informative, thorough and easy to understand guidebook that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible, viable alternative in achieving sustainable development among resource-poor communities.
WAITHIRA MRSMIRIE. "Mirie W., Aging and Nutritional Needs, East African Medical Journal, Vol. 74 No. 10, October, 1997.". In: The Journal of Experimental Biology 213, 3223 . ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1; 1997. Abstract
Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products. This is an informative, thorough and easy to understand guidebook that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible, viable alternative in achieving sustainable development among resource-poor communities.
WAITHIRA MRSMIRIE. "Mirie W., The Relationship between Nutrition and Pharmacology. East and Central African Journal of Pharmaceutical Services, Vol 1 No. 3, October 1998.". In: The Journal of Experimental Biology 213, 3223 . ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1; 1998. Abstract
Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products. This is an informative, thorough and easy to understand guidebook that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible, viable alternative in achieving sustainable development among resource-poor communities.
WAITHIRA MRSMIRIE. "Mirie W., Aging and Nutritional Needs. A chapter in Handbook of Nutrition for the Aged CRC Press, Florida, USA, 2000.". In: The Journal of Experimental Biology 213, 3223 . ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1; 2000. Abstract
Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products. This is an informative, thorough and easy to understand guidebook that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible, viable alternative in achieving sustainable development among resource-poor communities.
WAITHIRA MRSMIRIE. "Mirie W., et al. A study of Knowledge Attitudes and Practices Breastfeeding of Health Workers at Kenyatta National Hospital.". In: The Journal of Experimental Biology 213, 3223 . ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1; 1993. Abstract
Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products. This is an informative, thorough and easy to understand guidebook that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible, viable alternative in achieving sustainable development among resource-poor communities.
WAITHIRA MRSMIRIE. "Kemenwa R., Mirie W., Breastfeeding, Hospital Practices as Reported by Mothers at Kenyatta National Hospital. International Journal of Childbirth Education, Vol. 12 No. 4, December, 1997.". In: The Journal of Experimental Biology 213, 3223 . ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1; 1997. Abstract
Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products. This is an informative, thorough and easy to understand guidebook that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible, viable alternative in achieving sustainable development among resource-poor communities.
WAITHIRA MRSMIRIE. "Mirie W., Maternal Nutritional and Food Security. Nutrition Association of Kenya Newsletter, Vol. 4 December, 1998.". In: The Journal of Experimental Biology 213, 3223 . ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1; 1998. Abstract
Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products. This is an informative, thorough and easy to understand guidebook that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible, viable alternative in achieving sustainable development among resource-poor communities.
WAITHIRA MRSMIRIE. "Thuita F. N., Mirie W., Nutrition in the Management of Acquired Immune Deficiency syndrome. East African Medical Journal, Vol 76, No. 9 September 1999.". In: The Journal of Experimental Biology 213, 3223 . ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1; 1999. Abstract
Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products. This is an informative, thorough and easy to understand guidebook that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible, viable alternative in achieving sustainable development among resource-poor communities.
Waithira M. An evaluation of the educational programme of Breastfeeding Information Group (BIG) in Nairobi.; 1989. Abstract

The main objective of this study was to
compare the knowledge. attitudes. ,and practices of
mothers and health workers exposed to the educational
programme of the Breastfeeding Information
Group (BIG) with those who have not been exposed to
the programme. In addition. the knowledge. attitudes
and practices of BIG counselors and members
of the executive committee were also assesed with
respect to their knowledge and practices of breastfeeding
and weaning.
The knowledge. attitude and practice (i(AP ;0
study took place in Maternal and Child Health
Clinics (MCHC) in Nairobi, between January and June
1987. A sample of 150 randomly selected B i
Exposed mothers was compared with a similar sample
of randomly selected NON-BIG Exposed rno t her· s .
Similarly a sample of 24 randomly selected B1GExposed
Health Workers was compared with a s l m I lar
number of NON-BIG Exposed health workers. in addition,
12 BIG volunteers and 6 counsellors were
included in the study. Thus a total of
366 interviews were conducted for the study.
The
higher in
BIG-exposed study sample scored
the knowledge test than the Non-BIG
exposed controls.
-
The initiation of breastfeeding was largely
universal among the entire study sample. The duration
of breastfeeding of the youngest child
however, was longer among mothers not exposed to
the BIG educational programme. than among mothers
exposed to it.
The onset of weaning the youngest child of
both groups of mothers was significantly different
between the two groups. The Non-BIG exposed
mothers introduced supplementary foods earlier than
the BIG-exposed mothers.
Questioned on the main message delivered in
BiG's promotional visual aid (poster) designed to
promote and encourage breastfeeding. the majority
of respondents identified it to be: " to breastfeed"

WAITHIRA MRSMIRIE. "Mirie W., Abstract: An evaluation of the Educational Programme of Breastfeeding Information Group (BIG) in Nairobi. Journal of Gastroenterology and Haematology, 1994.". In: The Journal of Experimental Biology 213, 3223 . ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1; 1994. Abstract
Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products. This is an informative, thorough and easy to understand guidebook that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible, viable alternative in achieving sustainable development among resource-poor communities.
WAITHIRA MRSMIRIE. "Mirie W., An Evaluation of Education Program of Breastfeeding Information Group (BIG) in Nairobi (A Thesis for the Msc. In Applied Human Nutrition, University of Nairobi).". In: The Journal of Experimental Biology 213, 3223 . ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1; 1998. Abstract
Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products. This is an informative, thorough and easy to understand guidebook that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible, viable alternative in achieving sustainable development among resource-poor communities.
Wakaguara A. "BUDGETARY PRACTICES IN PRIVATE/ MISSION HOSPITALS IN NAIROBI AND ITS ENVIRONS.". 2010. Abstractbudgetary_practices_in_private_mission_hospitals_in_nairobi_and_its_environs.pdf

This paper examines the budgetary practices in private and mission hospitals. The aim is to shed some light on the human behaviour including other activities during budgeting. This research was based on a survey of all private and mission hospitals in Nairobi. Two additional hospitals were included in the study from the environs. Budgeting reflects a conscious effort to plan for certain desirable results and controls to maximise the chances of achieving those results in a company. In a typical private sector, budgeting is a collective and closely coordinated exercise in which each activity is systematically related to the other since the sector is profit motivated. Future planning needs to recognize that sustainable health service provision cannot be achieved by the government health sector alone and active involvement of stakeholders is required. Typically, in the governmental sector, health services are financed primarily through the revenue collected from fees and insurance premiums charged to service users. The main contribution of this paper is to highlight the involvement of senior staff in the budget planning, problems faced during the budgeting process and the effectiveness of the budgeting process. In addition, it guides on possible solutions to problems faced by the organisations.

Wakahiu MW, Gildemacher PR, Kinyua ZM, Kabira JN, Kimenju AW, Mutitu EW. "Occurrence of potato bacterial wilt caused by Ralstonia solanacearum in Kenya and opportunities for intervention.". 2007.
Wakana, S., Siraishi, S., Ondicho, TG, eds. Re-finding African assets and City Environments: Governance, Research and Reflexivity. Tokyo: ILCAA & JSPS; 2016.
Wakasiaka S;, Donna JS;, Hoang TDM;, Jaoko WG;, Anzala O, Priddy FH. "Health-care Providers'perceptions Of Intravaginal Rings For Hiv Prevention In Nairobi, Kenya.". 2013. Abstract

Background: Health-care providers form the backbone of health information and service delivery in many African communities. This study investigated health-care providers' (HCPs) attitudes towards a novel method of HIV prevention for women-a microbicide-embedded intravaginal ring (IVR). Methods: Qualitative interviews were conducted, covering initial attitudes towards IVRs, potential use among female sex workers, herbal practices for sexually transmitted infection (STI) management and the ways in which populations can access the rings should they become available. Twenty HCPs were interviewed in Mukuru and Kibera, which are informal settlements in Nairobi, Kenya, with high HIV prevalence, unemployment and commercial sex work. Results: The majority of HCPs had positive attitudes towards IVRs as a method of HIV prevention in this environment. HCPs liked that IVRs are female controlled and can be used covertly. Overall, HCPs reported a willingness to participate in the distribution of IVRs, and favoured distribution through health facilities at no cost. Conclusion: Findings from this study demonstrate that HCPs are willing to serve as the primary source of IVR information in target communities. However, they require adequate knowledge regarding microbicides and IVRs before these products reach the market

Wakasiaka S, Bwayo JJ, Ndinya-Achola JO, Omosa G, Jaoko W, Waruingi W, Ogutu H. Kenya AIDS Vaccine Initiative HIV Vaccine Peer Leaders Training Manual.; 2004. Abstract

MRC Human Immunology Unit, University of Oxford, Oxford, UK. The IFN-y enzyme-linked immunospot (ELI-Spot) assay is often used to map HIV-specific CD8 T-cell responses. We compared overlapping 15-mer pools with optimized CD8 epitopes to screen ELISpot responses in HIV-infected individuals. The 15-mer pools detected responses to previously undefined epitopes, but often missed low-level responses to predefined epitopes, particularly when the epitope was central in the 15-mer, rather than at the N-terminus or C-terminus. These factors should be considered in the monitoring of HIV vaccine trials.

Wakasiaka S, Smith DJ HTDMJAPFHWO &. "Health-care providers’ perceptions of intravaginal rings or HIV prevention in Nairobi, Kenya." Women’s Health. 2013;7(3):144-50.
Wakhungu JW, Badamana MS, Olukoye GA. "Productivity of Indigenous and Exotic Cattle on Kenya Ranches.". 2006. Abstract

A comparison of productivity and adaptability of indigenous (Boran and Small East African Zebu) and the exotic (Sahiwal and Ayrshire) cattle on Kenyan ranches located in semi-arid areas of the Rift Valley Provinces was done. Data sets of the cattle breeds over the 1979-1993 period on Deloraine, Elkarama, Ilkerin, National Sahiwal Stud (NSS) and Oljorai were analyzed by the least squares fixed effects model procedures. The least squares means of productivity component traits of each breed were imputed in PRY model to derive feed energy efficiency (FEE) index and carry out sensitivity analyses. The respective FEE indices were 137, 106, 100, 86, 82, 79, 78, and 65 aggregate value off take per unit of feed energy requirements for NSS Sahiwal, Deloraine Ayrshire, Deloraine Sahiwal, Elkarama Sahiwal, Ilkerin Sahiwal, Elkarama Boran, Oljorai Boran and Ilkerin small East African Zebu. The sensitivity showed that survival and reproductive (fitness) traits of the indigenous cattle were lower than for exotic cattle indicating better adaptability of indigenous cattle. The sensitivity values of milk yield, mature weight and mature age were at near optimal levels for the ranch environments, except for Deloraine Ayrshire and Elkarama Boran. The results suggest that fitness traits and rate of genetic progress by selection in production traits could be further enhanced by improving environmental management on the ranches. The implications on development strategies of indigenous and exotic cattle are also discussed.

Wakhungu JW, Olukoye GA, Wamicha WN, Kinyamario JI, Mwanje JI. Environmental impacts of livestock-wildlife ranching in Laikipia District, Kenya.; 2001.
Wakiaga JM;, Maina SW;, Kisumbi BK. "Incidence Of The Second Canal The Upper Second Premolar.". 1988.
Wakiaga JM, Kaimenyi JT, Kisumbi BK. "Reasons underlying failure to seek dental treatment among Nairobi University students.". 1996. Abstract

A survey of 272 University of Nairobi undergraduate students was undertaken to assess their dental chairside experience and what reasons they gave for failing to seek dental treatment. Most respondents considered dental treatment uncomfortable and painful. The cost of treatment and fear arising from information given by other dental patients were important reasons that kept the respondents from visiting a dental clinic. This paper reveals the need for the dental profession to playa greater role in red ucing costs of treatment and odontophobia.

Wakibi SN. "Evaluation of USAID Capacity Project Human Resources Information System Strengthening.". In: PEPFAR Implementers Meeting Session 31. Windhoek, Namibia; 2009.
Wakibi SN. "Good data, informed decisions: Strengthening HRH information systems.". In: The Global Health Council’s. Washington DC, USA; 2009.
Wakibi SN. Prevalence & Predictors of Non-Adherence to free HAART in Nairobi, Kenya. Nairobi: Jomo Kenyatta University of Agriculture and Technology; 2010.
Wakibi SN. "Factors associated with non-adherence to highly active antiretroviral therapy in Nairobi, Kenya." AIDS Research and Therapy 2011. 2011;8(doi:10.1186/1742-6405-8-43).
Wakindiki IC, Kinyali S.M. Tirop SK, B.E M, S.K. T. "Influence of some soil physical properties on infiltration rate and hydraulic conductivity of 3 salt-affected soils in Kenya. ." E. Afr.agric. For J.. 2001;2(67):155-120.
Wakoli MW, Ottieno JAM. "Mixed Poisson Distributions Associated with Hazard Functions of Exponential Mixtures." Journal of Mathematical Theory and Modeling (. 2015;5(6):209-243. AbstractFull text link

The hazard function of an exponential mixture characterizes an in- nitely divisible mixed Poisson distribution which is also a compound Poisson distribution. Given the hazard function, the probability generating functions (pgf) of the compound Poisson distribution and its independent and identically distributed (iid) random variables are derived.The recursive forms of the distributions are also given. Hofmann hazard function has been discussed and re-parameterized. The recursive form of the distribution of the iid random variables for the Hofmann distribution follows Panjer's model. Key words: Mixed Poisson distributions, Laplace transform, expo- nential mixtures, complete monotocity, in nite divisibility, compound Poisson distribution, Hofmann distributions, Panjer's model.

Wakoli MW, Ottieno JAM. "SUMS OF HAZARD FUNCTIONS OF EXPONENTIAL MIXTURES AND ASSOCIATED CONVOLUTIONS OF MIXED POISSON DISTRIBUTIONS." Journal of Mathematical Theory and Modeling (liSlE). 2015;5(6):209-243. AbstractWebsite

Abstract

A Sum of hazard functions of exponential mixtures characterizes a convolution of in nitely divisible mixed Poisson distributions which is also a convolution of compound Poisson distri- butions. For each sum of two special cases of Hofmann hazard function, the following have been ob- tained: the probability generating function (pgf) of the convolution of the mixed Poisson distri- butions. the pgf of the independent and identically distributed (iid) random variables for the convolution of the compound Poisson distributions. the recursive form of the convolution of the compound Poisson distribution. We also wish to nd out whether Panjer's recursive model holds for all cases.

Key words: convolutions, exponential mixtures, mixed Poisson distribution, Hofmann hazard functions, characterization, compound Poisson distribution, Panjer's recursive model, Laplace transform

WAKONYU DRKANJAL. "Some factors related to sum-DDT levels in Ugandan mothers.". In: journal.; 1998.
WAKONYU DRKANJAL, ELIAS PROFMAITHOT. "Levels of organochlorine Pesticide residues in milk of Urban Mothers in Kenya.". In: journal. de Gruyter; 1998.
WAKONYU DRKANJAL. "Organochlorine Pesticide Residues in Mothers milk of in Uganda.". In: journal.; 1996.
WAKONYU DRKANJAL. "Organochlorine pesticide residues in cow.". In: journal.; 1996.
WAKONYU DRKANJAL, ELIAS PROFMAITHOT. "Levels of organochlorine Pesticide residues in milk of Urban Mothers in Kenya.". In: journal.; 1998.
Wakulele SR, Odock SO, Chepkulei B, Kiswili NE. "Effect of eco-design practices on the performance of manufacturing firms in Mombasa County, Kenya." International Journal of Business and Social Science. 2016;7(8):86-104. Abstract

Eco-design is a new approach to products design; it has emerged as a key approach for manufacturing firms seeking to become environmentally sustainable and globally competitive. The purpose of this study was to establish the effect of adoption of Eco-design practices on organizational performance of manufacturing firms in Mombasa County, Kenya. A cross sectional survey research design was adopted for this study. It targeted a population a population of manufacturing firms in Mombasa County listed by Kenya Association of Manufacturers (KAM, 2014). A sample of 65 firms was taken and data was collected using questionnaires. The results obtained indicated that Eco-design practices adoption was at the planning/ implementation stage as most of the manufacturing firms had considered adoption. The study also established that the major challenges of adopting Eco-design practices are Unsuccessful integration of Eco-design, Lack of knowhow in managing changes in design procedures, and Lack of technical knowledge about Eco-design. Lastly the findings show that Eco-design practices have positive influence on organization performance with greatest impact being on environmental impact reduction and financial performance. The study recommends that manufacturing firms should get enough training and empowerment on how to implement Eco-design practices so as to ensure success, reduce fear of failure and encourage environmental sustainability. They should also act fast and implement Ecodesign practices since there are potential benefits after implementation such as improvement in environmental impact reduction and financial performance. Lastly the researcher recommends that since government rules and legislations and organization capabilities are the major drivers of adoption of Eco-design practices they should review their policies and allocate more resources to ensure effective adoption and implementation of Eco-design practices. This is because the bedrock of economic and social development in Kenya is the environment; hence environment sustainability should be given first priority.

Key words: Green supply chain management, Life Cycle Analysis, Design for Disassembly, Design for
Environment, Design for Recycling

UoN Websites Search