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Ruigu G. "Some Aspects of Employment on Small Holder Farms in Selected Areas of Kenya.". In: Agricultural Policy Issues in East African.; 1973.
Rukaria-Kaumbutho RM, Ojwang SB, Oyieke JB. "Resistance to chloroquine therapy in pregnant women with malaria parasitemia.". 1996. Abstract

The objective of the study was to determine the efficacy of chloroquine in pregnant women with Plasmodium falciparum parasitemia at therapeutic doses of 25 mg/kg body weight divided over 3 days. METHODS: Three-hundred pregnant women in Kilifi Hospital at the coast of Kenya were screened for malaria parasitemia using Giemsa stained thick blood smears. In vivo and in vitro parasite sensitivity to chloroquine was determined. RESULTS: P. falciparum infections were present in 65 (22%) of 300 pregnant women. The in vivo tests showed that 46% of all the P. falciparum infections were resistant to chloroquine predominantly at RI and RII levels. The in vitro tests showed a resistance rate of 35%. CONCLUSIONS: A large proportion of pregnant women with malaria do not respond to chloroquine therapy and alternative drugs are required

Rukenya MZ, Mbaria JM, Mbaabu PM, Kiama SG, Ozango. "). In Vitro Antimicrobial, Cytotoxic Activity and Phytochemistry of Aloe turkanensis an Ethnomedicine Used in Turkana, Kenya.". In: The Kenya Veterinary Association annual 48th scientific conference . Boma Inn Hotel, Eldoret. Kenya; 2014.
Rukenya Zachary Muthii, Mbaria James Mucunu, Mbaabu Mathiu Peter, Gitahi KS, Onzago OR. "Antimicrobial activity of aqueous and methanol extract of naturally growing and cultivated Aloe turkanensis. .". 2014;3(5):243-347.
RUKWARO DRROBERT. "The Role of Social Systems in Production Process of Modern Architecture in Kenya.". In: In Proceedings of the Conference on Modern Architecture in East Africa Around Independence. Published by ArchiAfrica, Utrecht, . VLIR; 2005.
Rukwaro P. "Conservation of Natural and Cultural Heritage in Kenya." www.ucl.ac.uk/ucl-press; 2018.
Rukwaro R. "Dissemination of Architectural Knowledge among Research, Training and Practice.". 2011. AbstractWebsite

Within the field of architecture, architects and scholars appear to have difficulty making sense of one another’s experience and the relationship between practice and research is often uneven and unclear. In addition, those who identify themselves as scholars of architecture tend to be closed in their academic spheres and vice versa for those who are practitioners. The professionals and scholars seem not to have adequate interchange and reconciliation of the profession. This has not helped much in developing a unifying framework for research and practice of architecture. The scholars and the practicing architect have yet to produce a comprehensive institutional framework capable of directing the profession toward the demonstrable improvement of the architectural practice; training and research. Survey is used as the research design. Questionnaires and interviews were used to collect data from archiects in practice and those in academia, students of architecture and educational administrators. The practicing architects were randomly sampled from the Board of Architects and Quantity Surveying (BORAQS) register. Forty practicing architects were selected. Twenty lecturers and fifty students were interviewed while four administrators were administered questionnaires. Qualitative techniques were used to analyze the responses from the field. This paper has unraveled the minimal relationship between scholars and professionals; the information flow between them and presented the way forward

Rukwaro R. "Form Making in Architecture.". 2012. AbstractWebsite

Form making is one of the most important activities that the architect is engaged in when creating architecture. During the process of form making the architect expresses the individual perceptions of reality in tangible form, which is the symbolic form of architecture. When one observes the majority of built forms in the city of Nairobi they are more of an expression of Western culture than Kenyan culture. The individual perceptions of reality of Kenyan culture and nature are not well symbolized in most of the built forms. This has led to lack of a unifying architectonic style that defines and guides the Kenyan mordern architecture. Therefore, the purpose of this paper is to establish the extent to which the built forms in Nairobi portray the Kenyan cultural and natural forms through symbolism in their form making. A sample of 21 buildings constructed between 1960 and 2011 in the City of Nairobi were studied. Data was collected using interviews and observation techniques. Qualitative methods were used to analyse the data. Out of the 21 sampled buildings, only 40% seemed to be inspired by Kenyan culture and nature in their built forms. The study recommends that the architects in Kenya create architectural forms that are inspired by natural environment, traditions and cultural values of the local communities. It is only out of this that the symbolic architectural forms in Kenya can be realised

RUKWARO DRROBERT. "Inculturation of the Catholic Church in Kikuyu Religious Space.". In: Hekima Journal. 3 (2005) pp. 102-117. VLIR; 2005.
and Rukwaro DROOPR. "A Case Study of Architecture, Design and Development (ADD) Building in the University of Nairobi ." LOCAL PAPERS. 2015;Volume 9,(Number 9, August 2015).
Rukwaro RW, Kieti RM. "Spatial design parameters for residential extensions: the case of Buru Buru estate in Nairobi, Kenya." Architectural Engineering and Design Management. 2019;15(1):29-47. Abstract

Taylor & Francis UK: DOI: 10.1080/17452007.2018.1489212

Rukwaro RW. "Owner User Brief.". 1992.
RUKWARO DRROBERT. "Developer profits undermine residents.". In: Implications for local government in Kenya. VLIR; 2003.
RUKWARO DRROBERT. "Transformation of Art and Architecture of Maasai.". In: ARTS Nairobi. ISBN 9966-9702-2-8. VLIR; 2006.
Rukwaro RW. Kenyan maasai architecture in a changing culture .; 1997. Abstract

The Kenyan Maasai traditional built form in Kajiado District is changing. It is being replaced by the newly developed homesteads and houses which are inadequately planned, designed and lacking in symbolism. The latter are inconsistent with social arrangements and cultural needs of the contemporary Maasai lifestyle. It was the hypothesis of this study that the culture of the Maasai influences the architecture of their built forms. Multiple research tools were used in the collection of data. These included Observation, Focus Group Discussion, Questionnaires and Interviews. Among the techniques used in analysing the data are the chi-square statistics and qualitative analytical procedures based on the material collected through cluster sampling of 92 homesteads which were presented graphically. It is clear that the architectural conditions of Maasai buildings are a result of culture change variables identified as occupation, religion, rituals, education, family set-up and land tenure which have consistently evolved cultural values such as social status, independence, privacy and sedentary lifestyle. The study concludes that, in view of the changed culture of the maasai, the new built form is satifactory in the incorporating the emerging architectural design concepts such as nuclear family house, linearity, divisibility and permanence in response to emerging spaces and artifacts. These concepts symbolise the changing Maasai culture in the built form.

and Rukwaro JMPR. "Resilience of City to Flood: A Case Study of Nairobi City." LOCAL PAPERS. 2016;volume 10(Number 10, November 2016).
Rukwaro RW. Maasai Architecture.; 1995.
Rukwaro RW, Ayonga JN, Anunda, Musungu T(2011). Development control frameworks in Kenya.. Nairobi, Kenya: Published report by (AAK/BAF); 2011.
Rukwaro RW, Mukono KM. "Architecture of societies in transition—the case of the Maasai of Kenya.". 2001. AbstractWebsite

Historically, it has been observed that people's settlements tend to change with their changing cultural values. Societies in early and rapid transition offer rich laboratories for the testing of this observation. The Maasai of Kenya are such a group that in a relatively short period have undergone revolutionary transformation as a casual observation may reveal. This paper investigates whether there is any relationship between their new built forms and their current cultural values. Using a number of identified culture – change variables including land tenure, education, religion, occupation, and rite of passage, the paper analyses what impact changes in these variables has on the Maasai settlements. It clearly reveals that as these variables change due to contacts with western-based modernity, the settlements have undergone noticeable transformation. For example, change of land tenure from communal to individual leads to permanent settlements. While exposure through education, religion and occupation leads to a change in the spatial organisation of the dwelling and the use of new building materials. These insights are a useful background to any policy matters regarding housing that respects the cultures of the people. They are indications of what can be considered as a transitional architecture as communities struggle to modernise.

RUKWARO DRROBERT. "The Case of the Maasai of Kenya.". In: The Habitat International Journal: 25 (2001) pp81-97. VLIR; 2001.
Rummel-Bulska I. "UNEP Basel Convention.". 1990.
Rummel-Bulska I. "UNEP Environmental Policy.". 1995.
Rummel-Bulska I. The negotiating process leading to the Convention on Biological Diversity. Finland: International Environmental Law-making and Diplomacy Review, Joensuu; 2007.
Rummel-Bulska I. "UNEP Environmental Law."; 1991.
Rummel-Bulska I. "Hazardous Wastes.". 1993.
Rummel-Bulska I. "The Montreal Protocol – 20 years ed. by Cameron May Ltd.". In: The Story of the Ozone Layer.; 2007.
Runtuwene LR, Sathirapongsasuti N, Srisawat R, Komalamisra N, Tuda JSB, EMongan A, Aboge GO. "Global research alliance in infectious disease: a collaborative effort to combat infectious diseases through dissemination of portable sequencing." BMC Research Notes . 2022;(2022) 15:44 .
Russ CM, Ganapathi L, Marangu D, Silverman M, Kija E, Bakeera-Kitaka S, Laving A. "Perspectives of host faculty and trainees on international visiting faculty to paediatric academic departments in East Africa." BMJ Glob Health. 2016;1(3):e000097. Abstract

Investments in faculty exchanges to build physician workforce capacity are increasing. Little attention has been paid to the expectations of host institution faculty and trainees. This prospective qualitative research study explored faculty and resident perspectives about guest faculty in paediatric departments in East Africa, asking (1) What are the benefits and challenges of hosting guest faculty, (2) What factors influence the effectiveness of faculty visits and (3) How do host institutions prepare for faculty visits?

RUTE DRMARETEGIDEONNTEERE. ""An excrept from a long poem titled "TheVillage Bride" Published inMusings a Massey Univeristy literary journal.". In: East African Medical Journal. 68, 526-531. Journal of School of Continuous and Distance Education ; 1985. Abstract
Kamau RK, Osoti AO, Njuguna EM. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Nairobi, P.O. Box 1%76-00202, Nairobi, Kenya. BACKGROUND: Cancer of the uterine cervix is the most common female cancer in Kenya. Despite being preventable, it is often diagnosed when it is already late. For this reason, only palliative therapy is provided. Hence, it is expected that their daily routines and that of their caregivers are severely disrupted. OBJECTIVES: To determine the extent to which diagnosis and treatment of inoperable cervical carcinoma affects quality of life (QOL). DESIGN: Cross-sectional descriptive study. Setting Radiotherapy Department at the Kenyatta National Hospital. SUBJECTS: Women undergoing radiotherapy for inoperable cervical cancer. RESULTS: There is high prevalence of profound disruptions in nearly all domains of QOL. In the social domain, between 33% and 44% had the perception that family members and friends had withdrawn social support. Reduction in various economic facets was reported by 47.4%-52.6%, with 44.7% reporting a fall in the overall living standards. There were significant changes in the sexual domain, as a result in which 28.3% reported marital discordance. In the personality domain, decreased self-esteem and self-projection in life occurred in 30.9% and 36.2% respectively. On functional outcomes (EORTC QLQ-C30), only 32%-41% reported not being affected in the various facets of emotional function. Physical functions were affected in 19%-79%, role functions in 69%-75%; symptoms in 49%-80%; cognitive functions in 46%-56%; social functions in 63%-71% and financial aspects by 63%. On global QOL, 53% and 47% respectively reported high level disruption in overall physical health and overall QOL. CONCLUSION: Severe deterioration of QOL occurs as a result of diagnosis of inoperable cervical cancer and subsequent therapies. For this reason there is need to establish severe disease and end-of-life research and management services that would ensure better coping with cancer for patients and for home-based caregivers. PMID: 17633581 [PubMed - indexed for MEDLINE]
RUTE DRMARETEGIDEONNTEERE. ""An Anatomy of Third world Literature: Northrop Frye's Theory of Modes in a post-colonial context to bothJAmes Curry (London) Making suggested revion.". In: East African Medical Journal. 68, 526-531. Journal of School of Continuous and Distance Education ; 1992. Abstract
Kamau RK, Osoti AO, Njuguna EM. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Nairobi, P.O. Box 1%76-00202, Nairobi, Kenya. BACKGROUND: Cancer of the uterine cervix is the most common female cancer in Kenya. Despite being preventable, it is often diagnosed when it is already late. For this reason, only palliative therapy is provided. Hence, it is expected that their daily routines and that of their caregivers are severely disrupted. OBJECTIVES: To determine the extent to which diagnosis and treatment of inoperable cervical carcinoma affects quality of life (QOL). DESIGN: Cross-sectional descriptive study. Setting Radiotherapy Department at the Kenyatta National Hospital. SUBJECTS: Women undergoing radiotherapy for inoperable cervical cancer. RESULTS: There is high prevalence of profound disruptions in nearly all domains of QOL. In the social domain, between 33% and 44% had the perception that family members and friends had withdrawn social support. Reduction in various economic facets was reported by 47.4%-52.6%, with 44.7% reporting a fall in the overall living standards. There were significant changes in the sexual domain, as a result in which 28.3% reported marital discordance. In the personality domain, decreased self-esteem and self-projection in life occurred in 30.9% and 36.2% respectively. On functional outcomes (EORTC QLQ-C30), only 32%-41% reported not being affected in the various facets of emotional function. Physical functions were affected in 19%-79%, role functions in 69%-75%; symptoms in 49%-80%; cognitive functions in 46%-56%; social functions in 63%-71% and financial aspects by 63%. On global QOL, 53% and 47% respectively reported high level disruption in overall physical health and overall QOL. CONCLUSION: Severe deterioration of QOL occurs as a result of diagnosis of inoperable cervical cancer and subsequent therapies. For this reason there is need to establish severe disease and end-of-life research and management services that would ensure better coping with cancer for patients and for home-based caregivers. PMID: 17633581 [PubMed - indexed for MEDLINE]
RUTE DRMARETEGIDEONNTEERE. ""Saved by Leopard" published in Writers' Forum: A journal of the writers Association of Kenya.". In: East African Medical Journal. 68, 526-531. Journal of School of Continuous and Distance Education ; 1993. Abstract
Kamau RK, Osoti AO, Njuguna EM. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Nairobi, P.O. Box 1%76-00202, Nairobi, Kenya. BACKGROUND: Cancer of the uterine cervix is the most common female cancer in Kenya. Despite being preventable, it is often diagnosed when it is already late. For this reason, only palliative therapy is provided. Hence, it is expected that their daily routines and that of their caregivers are severely disrupted. OBJECTIVES: To determine the extent to which diagnosis and treatment of inoperable cervical carcinoma affects quality of life (QOL). DESIGN: Cross-sectional descriptive study. Setting Radiotherapy Department at the Kenyatta National Hospital. SUBJECTS: Women undergoing radiotherapy for inoperable cervical cancer. RESULTS: There is high prevalence of profound disruptions in nearly all domains of QOL. In the social domain, between 33% and 44% had the perception that family members and friends had withdrawn social support. Reduction in various economic facets was reported by 47.4%-52.6%, with 44.7% reporting a fall in the overall living standards. There were significant changes in the sexual domain, as a result in which 28.3% reported marital discordance. In the personality domain, decreased self-esteem and self-projection in life occurred in 30.9% and 36.2% respectively. On functional outcomes (EORTC QLQ-C30), only 32%-41% reported not being affected in the various facets of emotional function. Physical functions were affected in 19%-79%, role functions in 69%-75%; symptoms in 49%-80%; cognitive functions in 46%-56%; social functions in 63%-71% and financial aspects by 63%. On global QOL, 53% and 47% respectively reported high level disruption in overall physical health and overall QOL. CONCLUSION: Severe deterioration of QOL occurs as a result of diagnosis of inoperable cervical cancer and subsequent therapies. For this reason there is need to establish severe disease and end-of-life research and management services that would ensure better coping with cancer for patients and for home-based caregivers. PMID: 17633581 [PubMed - indexed for MEDLINE]
RUTE DRMARETEGIDEONNTEERE. "Harambe fund raising, School Journal, New Zealand.". In: East African Medical Journal. 68, 526-531. Journal of School of Continuous and Distance Education ; 1993. Abstract
Kamau RK, Osoti AO, Njuguna EM. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Nairobi, P.O. Box 1%76-00202, Nairobi, Kenya. BACKGROUND: Cancer of the uterine cervix is the most common female cancer in Kenya. Despite being preventable, it is often diagnosed when it is already late. For this reason, only palliative therapy is provided. Hence, it is expected that their daily routines and that of their caregivers are severely disrupted. OBJECTIVES: To determine the extent to which diagnosis and treatment of inoperable cervical carcinoma affects quality of life (QOL). DESIGN: Cross-sectional descriptive study. Setting Radiotherapy Department at the Kenyatta National Hospital. SUBJECTS: Women undergoing radiotherapy for inoperable cervical cancer. RESULTS: There is high prevalence of profound disruptions in nearly all domains of QOL. In the social domain, between 33% and 44% had the perception that family members and friends had withdrawn social support. Reduction in various economic facets was reported by 47.4%-52.6%, with 44.7% reporting a fall in the overall living standards. There were significant changes in the sexual domain, as a result in which 28.3% reported marital discordance. In the personality domain, decreased self-esteem and self-projection in life occurred in 30.9% and 36.2% respectively. On functional outcomes (EORTC QLQ-C30), only 32%-41% reported not being affected in the various facets of emotional function. Physical functions were affected in 19%-79%, role functions in 69%-75%; symptoms in 49%-80%; cognitive functions in 46%-56%; social functions in 63%-71% and financial aspects by 63%. On global QOL, 53% and 47% respectively reported high level disruption in overall physical health and overall QOL. CONCLUSION: Severe deterioration of QOL occurs as a result of diagnosis of inoperable cervical cancer and subsequent therapies. For this reason there is need to establish severe disease and end-of-life research and management services that would ensure better coping with cancer for patients and for home-based caregivers. PMID: 17633581 [PubMed - indexed for MEDLINE]
RUTE DRMARETEGIDEONNTEERE. ""Shocking National Tragedy" a review of Bhabani Bhattacharva's So Many Hungers! In Daily Nation Jan.1982.". In: East African Medical Journal. 68, 526-531. Journal of School of Continuous and Distance Education ; 1982. Abstract
Kamau RK, Osoti AO, Njuguna EM. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Nairobi, P.O. Box 1%76-00202, Nairobi, Kenya. BACKGROUND: Cancer of the uterine cervix is the most common female cancer in Kenya. Despite being preventable, it is often diagnosed when it is already late. For this reason, only palliative therapy is provided. Hence, it is expected that their daily routines and that of their caregivers are severely disrupted. OBJECTIVES: To determine the extent to which diagnosis and treatment of inoperable cervical carcinoma affects quality of life (QOL). DESIGN: Cross-sectional descriptive study. Setting Radiotherapy Department at the Kenyatta National Hospital. SUBJECTS: Women undergoing radiotherapy for inoperable cervical cancer. RESULTS: There is high prevalence of profound disruptions in nearly all domains of QOL. In the social domain, between 33% and 44% had the perception that family members and friends had withdrawn social support. Reduction in various economic facets was reported by 47.4%-52.6%, with 44.7% reporting a fall in the overall living standards. There were significant changes in the sexual domain, as a result in which 28.3% reported marital discordance. In the personality domain, decreased self-esteem and self-projection in life occurred in 30.9% and 36.2% respectively. On functional outcomes (EORTC QLQ-C30), only 32%-41% reported not being affected in the various facets of emotional function. Physical functions were affected in 19%-79%, role functions in 69%-75%; symptoms in 49%-80%; cognitive functions in 46%-56%; social functions in 63%-71% and financial aspects by 63%. On global QOL, 53% and 47% respectively reported high level disruption in overall physical health and overall QOL. CONCLUSION: Severe deterioration of QOL occurs as a result of diagnosis of inoperable cervical cancer and subsequent therapies. For this reason there is need to establish severe disease and end-of-life research and management services that would ensure better coping with cancer for patients and for home-based caregivers. PMID: 17633581 [PubMed - indexed for MEDLINE]
RUTE DRMARETEGIDEONNTEERE. "Contributor to Boundless voices, poems from Kenya, Heinamman.". In: East African Medical Journal. 68, 526-531. Journal of School of Continuous and Distance Education ; 1988. Abstract
Kamau RK, Osoti AO, Njuguna EM. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Nairobi, P.O. Box 1%76-00202, Nairobi, Kenya. BACKGROUND: Cancer of the uterine cervix is the most common female cancer in Kenya. Despite being preventable, it is often diagnosed when it is already late. For this reason, only palliative therapy is provided. Hence, it is expected that their daily routines and that of their caregivers are severely disrupted. OBJECTIVES: To determine the extent to which diagnosis and treatment of inoperable cervical carcinoma affects quality of life (QOL). DESIGN: Cross-sectional descriptive study. Setting Radiotherapy Department at the Kenyatta National Hospital. SUBJECTS: Women undergoing radiotherapy for inoperable cervical cancer. RESULTS: There is high prevalence of profound disruptions in nearly all domains of QOL. In the social domain, between 33% and 44% had the perception that family members and friends had withdrawn social support. Reduction in various economic facets was reported by 47.4%-52.6%, with 44.7% reporting a fall in the overall living standards. There were significant changes in the sexual domain, as a result in which 28.3% reported marital discordance. In the personality domain, decreased self-esteem and self-projection in life occurred in 30.9% and 36.2% respectively. On functional outcomes (EORTC QLQ-C30), only 32%-41% reported not being affected in the various facets of emotional function. Physical functions were affected in 19%-79%, role functions in 69%-75%; symptoms in 49%-80%; cognitive functions in 46%-56%; social functions in 63%-71% and financial aspects by 63%. On global QOL, 53% and 47% respectively reported high level disruption in overall physical health and overall QOL. CONCLUSION: Severe deterioration of QOL occurs as a result of diagnosis of inoperable cervical cancer and subsequent therapies. For this reason there is need to establish severe disease and end-of-life research and management services that would ensure better coping with cancer for patients and for home-based caregivers. PMID: 17633581 [PubMed - indexed for MEDLINE]
RUTE DRMARETEGIDEONNTEERE. "Contrbuted to R.K Narayan: Contemporary Critical Perspectives.Ed. Geoffrey R. Kain, Michigan State University Press. East Lansing. Contribution from PHD research on Third Worl literature.". In: East African Medical Journal. 68, 526-531. Journal of School of Continuous and Distance Education ; 1993. Abstract
Kamau RK, Osoti AO, Njuguna EM. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Nairobi, P.O. Box 1%76-00202, Nairobi, Kenya. BACKGROUND: Cancer of the uterine cervix is the most common female cancer in Kenya. Despite being preventable, it is often diagnosed when it is already late. For this reason, only palliative therapy is provided. Hence, it is expected that their daily routines and that of their caregivers are severely disrupted. OBJECTIVES: To determine the extent to which diagnosis and treatment of inoperable cervical carcinoma affects quality of life (QOL). DESIGN: Cross-sectional descriptive study. Setting Radiotherapy Department at the Kenyatta National Hospital. SUBJECTS: Women undergoing radiotherapy for inoperable cervical cancer. RESULTS: There is high prevalence of profound disruptions in nearly all domains of QOL. In the social domain, between 33% and 44% had the perception that family members and friends had withdrawn social support. Reduction in various economic facets was reported by 47.4%-52.6%, with 44.7% reporting a fall in the overall living standards. There were significant changes in the sexual domain, as a result in which 28.3% reported marital discordance. In the personality domain, decreased self-esteem and self-projection in life occurred in 30.9% and 36.2% respectively. On functional outcomes (EORTC QLQ-C30), only 32%-41% reported not being affected in the various facets of emotional function. Physical functions were affected in 19%-79%, role functions in 69%-75%; symptoms in 49%-80%; cognitive functions in 46%-56%; social functions in 63%-71% and financial aspects by 63%. On global QOL, 53% and 47% respectively reported high level disruption in overall physical health and overall QOL. CONCLUSION: Severe deterioration of QOL occurs as a result of diagnosis of inoperable cervical cancer and subsequent therapies. For this reason there is need to establish severe disease and end-of-life research and management services that would ensure better coping with cancer for patients and for home-based caregivers. PMID: 17633581 [PubMed - indexed for MEDLINE]
RUTE DRMARETEGIDEONNTEERE. "Saved by a Leopard, Writer's forum, A journal of the Writers's association of Kenya.". In: East African Medical Journal. 68, 526-531. Journal of School of Continuous and Distance Education ; 1993. Abstract
Kamau RK, Osoti AO, Njuguna EM. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Nairobi, P.O. Box 1%76-00202, Nairobi, Kenya. BACKGROUND: Cancer of the uterine cervix is the most common female cancer in Kenya. Despite being preventable, it is often diagnosed when it is already late. For this reason, only palliative therapy is provided. Hence, it is expected that their daily routines and that of their caregivers are severely disrupted. OBJECTIVES: To determine the extent to which diagnosis and treatment of inoperable cervical carcinoma affects quality of life (QOL). DESIGN: Cross-sectional descriptive study. Setting Radiotherapy Department at the Kenyatta National Hospital. SUBJECTS: Women undergoing radiotherapy for inoperable cervical cancer. RESULTS: There is high prevalence of profound disruptions in nearly all domains of QOL. In the social domain, between 33% and 44% had the perception that family members and friends had withdrawn social support. Reduction in various economic facets was reported by 47.4%-52.6%, with 44.7% reporting a fall in the overall living standards. There were significant changes in the sexual domain, as a result in which 28.3% reported marital discordance. In the personality domain, decreased self-esteem and self-projection in life occurred in 30.9% and 36.2% respectively. On functional outcomes (EORTC QLQ-C30), only 32%-41% reported not being affected in the various facets of emotional function. Physical functions were affected in 19%-79%, role functions in 69%-75%; symptoms in 49%-80%; cognitive functions in 46%-56%; social functions in 63%-71% and financial aspects by 63%. On global QOL, 53% and 47% respectively reported high level disruption in overall physical health and overall QOL. CONCLUSION: Severe deterioration of QOL occurs as a result of diagnosis of inoperable cervical cancer and subsequent therapies. For this reason there is need to establish severe disease and end-of-life research and management services that would ensure better coping with cancer for patients and for home-based caregivers. PMID: 17633581 [PubMed - indexed for MEDLINE]
RUTE DRMARETEGIDEONNTEERE. "The Horn, Kenyatta Universrity college newspaper.". In: East African Medical Journal. 68, 526-531. Journal of School of Continuous and Distance Education ; 1979. Abstract
Kamau RK, Osoti AO, Njuguna EM. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Nairobi, P.O. Box 1%76-00202, Nairobi, Kenya. BACKGROUND: Cancer of the uterine cervix is the most common female cancer in Kenya. Despite being preventable, it is often diagnosed when it is already late. For this reason, only palliative therapy is provided. Hence, it is expected that their daily routines and that of their caregivers are severely disrupted. OBJECTIVES: To determine the extent to which diagnosis and treatment of inoperable cervical carcinoma affects quality of life (QOL). DESIGN: Cross-sectional descriptive study. Setting Radiotherapy Department at the Kenyatta National Hospital. SUBJECTS: Women undergoing radiotherapy for inoperable cervical cancer. RESULTS: There is high prevalence of profound disruptions in nearly all domains of QOL. In the social domain, between 33% and 44% had the perception that family members and friends had withdrawn social support. Reduction in various economic facets was reported by 47.4%-52.6%, with 44.7% reporting a fall in the overall living standards. There were significant changes in the sexual domain, as a result in which 28.3% reported marital discordance. In the personality domain, decreased self-esteem and self-projection in life occurred in 30.9% and 36.2% respectively. On functional outcomes (EORTC QLQ-C30), only 32%-41% reported not being affected in the various facets of emotional function. Physical functions were affected in 19%-79%, role functions in 69%-75%; symptoms in 49%-80%; cognitive functions in 46%-56%; social functions in 63%-71% and financial aspects by 63%. On global QOL, 53% and 47% respectively reported high level disruption in overall physical health and overall QOL. CONCLUSION: Severe deterioration of QOL occurs as a result of diagnosis of inoperable cervical cancer and subsequent therapies. For this reason there is need to establish severe disease and end-of-life research and management services that would ensure better coping with cancer for patients and for home-based caregivers. PMID: 17633581 [PubMed - indexed for MEDLINE]
RUTE DRMARETEGIDEONNTEERE. "Contributing poet to Boundless Voices Poems from Kenya ed. Arthur Luvai. Heinemann.". In: East African Medical Journal. 68, 526-531. Journal of School of Continuous and Distance Education ; 1988. Abstract
Kamau RK, Osoti AO, Njuguna EM. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Nairobi, P.O. Box 1%76-00202, Nairobi, Kenya. BACKGROUND: Cancer of the uterine cervix is the most common female cancer in Kenya. Despite being preventable, it is often diagnosed when it is already late. For this reason, only palliative therapy is provided. Hence, it is expected that their daily routines and that of their caregivers are severely disrupted. OBJECTIVES: To determine the extent to which diagnosis and treatment of inoperable cervical carcinoma affects quality of life (QOL). DESIGN: Cross-sectional descriptive study. Setting Radiotherapy Department at the Kenyatta National Hospital. SUBJECTS: Women undergoing radiotherapy for inoperable cervical cancer. RESULTS: There is high prevalence of profound disruptions in nearly all domains of QOL. In the social domain, between 33% and 44% had the perception that family members and friends had withdrawn social support. Reduction in various economic facets was reported by 47.4%-52.6%, with 44.7% reporting a fall in the overall living standards. There were significant changes in the sexual domain, as a result in which 28.3% reported marital discordance. In the personality domain, decreased self-esteem and self-projection in life occurred in 30.9% and 36.2% respectively. On functional outcomes (EORTC QLQ-C30), only 32%-41% reported not being affected in the various facets of emotional function. Physical functions were affected in 19%-79%, role functions in 69%-75%; symptoms in 49%-80%; cognitive functions in 46%-56%; social functions in 63%-71% and financial aspects by 63%. On global QOL, 53% and 47% respectively reported high level disruption in overall physical health and overall QOL. CONCLUSION: Severe deterioration of QOL occurs as a result of diagnosis of inoperable cervical cancer and subsequent therapies. For this reason there is need to establish severe disease and end-of-life research and management services that would ensure better coping with cancer for patients and for home-based caregivers. PMID: 17633581 [PubMed - indexed for MEDLINE]
RUTE DRMARETEGIDEONNTEERE. "Shocking National Tragedy: Review of So Many Hungers, Daily Nation, January.". In: East African Medical Journal. 68, 526-531. Journal of School of Continuous and Distance Education ; 1992. Abstract
Kamau RK, Osoti AO, Njuguna EM. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Nairobi, P.O. Box 1%76-00202, Nairobi, Kenya. BACKGROUND: Cancer of the uterine cervix is the most common female cancer in Kenya. Despite being preventable, it is often diagnosed when it is already late. For this reason, only palliative therapy is provided. Hence, it is expected that their daily routines and that of their caregivers are severely disrupted. OBJECTIVES: To determine the extent to which diagnosis and treatment of inoperable cervical carcinoma affects quality of life (QOL). DESIGN: Cross-sectional descriptive study. Setting Radiotherapy Department at the Kenyatta National Hospital. SUBJECTS: Women undergoing radiotherapy for inoperable cervical cancer. RESULTS: There is high prevalence of profound disruptions in nearly all domains of QOL. In the social domain, between 33% and 44% had the perception that family members and friends had withdrawn social support. Reduction in various economic facets was reported by 47.4%-52.6%, with 44.7% reporting a fall in the overall living standards. There were significant changes in the sexual domain, as a result in which 28.3% reported marital discordance. In the personality domain, decreased self-esteem and self-projection in life occurred in 30.9% and 36.2% respectively. On functional outcomes (EORTC QLQ-C30), only 32%-41% reported not being affected in the various facets of emotional function. Physical functions were affected in 19%-79%, role functions in 69%-75%; symptoms in 49%-80%; cognitive functions in 46%-56%; social functions in 63%-71% and financial aspects by 63%. On global QOL, 53% and 47% respectively reported high level disruption in overall physical health and overall QOL. CONCLUSION: Severe deterioration of QOL occurs as a result of diagnosis of inoperable cervical cancer and subsequent therapies. For this reason there is need to establish severe disease and end-of-life research and management services that would ensure better coping with cancer for patients and for home-based caregivers. PMID: 17633581 [PubMed - indexed for MEDLINE]
RUTE DRMARETEGIDEONNTEERE. ""Harambee Fund Raising" published in NewZealand school Journal.". In: East African Medical Journal. 68, 526-531. Journal of School of Continuous and Distance Education ; 1993. Abstract
Kamau RK, Osoti AO, Njuguna EM. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Nairobi, P.O. Box 1%76-00202, Nairobi, Kenya. BACKGROUND: Cancer of the uterine cervix is the most common female cancer in Kenya. Despite being preventable, it is often diagnosed when it is already late. For this reason, only palliative therapy is provided. Hence, it is expected that their daily routines and that of their caregivers are severely disrupted. OBJECTIVES: To determine the extent to which diagnosis and treatment of inoperable cervical carcinoma affects quality of life (QOL). DESIGN: Cross-sectional descriptive study. Setting Radiotherapy Department at the Kenyatta National Hospital. SUBJECTS: Women undergoing radiotherapy for inoperable cervical cancer. RESULTS: There is high prevalence of profound disruptions in nearly all domains of QOL. In the social domain, between 33% and 44% had the perception that family members and friends had withdrawn social support. Reduction in various economic facets was reported by 47.4%-52.6%, with 44.7% reporting a fall in the overall living standards. There were significant changes in the sexual domain, as a result in which 28.3% reported marital discordance. In the personality domain, decreased self-esteem and self-projection in life occurred in 30.9% and 36.2% respectively. On functional outcomes (EORTC QLQ-C30), only 32%-41% reported not being affected in the various facets of emotional function. Physical functions were affected in 19%-79%, role functions in 69%-75%; symptoms in 49%-80%; cognitive functions in 46%-56%; social functions in 63%-71% and financial aspects by 63%. On global QOL, 53% and 47% respectively reported high level disruption in overall physical health and overall QOL. CONCLUSION: Severe deterioration of QOL occurs as a result of diagnosis of inoperable cervical cancer and subsequent therapies. For this reason there is need to establish severe disease and end-of-life research and management services that would ensure better coping with cancer for patients and for home-based caregivers. PMID: 17633581 [PubMed - indexed for MEDLINE]
RUTE DRMARETEGIDEONNTEERE. "Exerpts from the Village Bride, Heinnemann.". In: East African Medical Journal. 68, 526-531. Journal of School of Continuous and Distance Education ; 1979. Abstract
Kamau RK, Osoti AO, Njuguna EM. Department of Obstetrics and Gynaecology, College of Health Sciences, University of Nairobi, P.O. Box 1%76-00202, Nairobi, Kenya. BACKGROUND: Cancer of the uterine cervix is the most common female cancer in Kenya. Despite being preventable, it is often diagnosed when it is already late. For this reason, only palliative therapy is provided. Hence, it is expected that their daily routines and that of their caregivers are severely disrupted. OBJECTIVES: To determine the extent to which diagnosis and treatment of inoperable cervical carcinoma affects quality of life (QOL). DESIGN: Cross-sectional descriptive study. Setting Radiotherapy Department at the Kenyatta National Hospital. SUBJECTS: Women undergoing radiotherapy for inoperable cervical cancer. RESULTS: There is high prevalence of profound disruptions in nearly all domains of QOL. In the social domain, between 33% and 44% had the perception that family members and friends had withdrawn social support. Reduction in various economic facets was reported by 47.4%-52.6%, with 44.7% reporting a fall in the overall living standards. There were significant changes in the sexual domain, as a result in which 28.3% reported marital discordance. In the personality domain, decreased self-esteem and self-projection in life occurred in 30.9% and 36.2% respectively. On functional outcomes (EORTC QLQ-C30), only 32%-41% reported not being affected in the various facets of emotional function. Physical functions were affected in 19%-79%, role functions in 69%-75%; symptoms in 49%-80%; cognitive functions in 46%-56%; social functions in 63%-71% and financial aspects by 63%. On global QOL, 53% and 47% respectively reported high level disruption in overall physical health and overall QOL. CONCLUSION: Severe deterioration of QOL occurs as a result of diagnosis of inoperable cervical cancer and subsequent therapies. For this reason there is need to establish severe disease and end-of-life research and management services that would ensure better coping with cancer for patients and for home-based caregivers. PMID: 17633581 [PubMed - indexed for MEDLINE]
Rutkowski R, Okudan Gül E, Ogot M. "Transfer of Learning Between Solid Modelers: An Investigation of Icon Recognition." age. 2005;10:1. Abstract

Selecting the right solid modeling software is a complex, multi-criteria decision making problem.
There are many issues a decision-maker needs to take into account, such as ease of learning,
educational materials built into the software, learning curve issues, performance of the software
for different solid modeling functions, operations and utilities, and cost. Beyond selecting the
right software, the decision-maker should also be concerned about (1) conceptual learning of the
solid modeling topics while “the right software” is being used, and (2) transfer of conceptual
learning between solid modelers. This is because a sound conceptual learning might increase the
probability of learning another solid modeling software in less time.

Accordingly this paper investigates the impact of icon recognition as an aid to transfer
conceptual learning between solid modelers. The investigation includes a review of the literature
on icon design and usage as it relates to solid modeling, in addition to an experiment in which
the icon recognition correctness and duration for over 20 operation icons were compared across
two modelers. The results shed light into the impact of icon designs on the transfer of learning
between solid modelers using the correct recognition counts as the transfer measure.

Ruto S, Kameri-Mbote P, Muteshi J. "Engendering Environmental Management for Sustainable Livelihoods.". In: The Promises and Realities: Taking Stock of the 3rd International Women’s Conference. NAIROBI: African Women & Child Feature Service & Ford Foundation; 2009.
Ruto LC, Otieno DJ, Oluoch-Kosura W, Mureithi S, Nyberg G. "Emerging forms of land market participation and implications on pastoralists’ livelihoods in Kenya.". In: 20th Annual World Bank Conference on Land and Poverty. Washington DC, USA; 2019.
Ruto WKS, Kinyamario JI, Ng'etich NK, Akunda E, Akunda E. "Plant Species Diversity and Composition of Two Wetlands in the Nairobi National Park, Kenya.". 2012. Abstract

Two wetlands (Hyena and Nalogomon) in the Nairobi National Park were investigated by comparing plant composition in and around their immediate vicinity. The most common aquatic plant species in the Hyena wetland was Cyperus dives while in the Nalogomon wetland was Typha domingensis. The terrestrial vegetation surrounding Hyena wetland dominated by while that of surrounding Nalogomon wetland was the grass Hyparrhemia rufa. It was also noted that Hyena Dam waters were colonized by aquatic weeds, namely Gunnera perpensa, Enhydra fluctuans and Ludwigia abyssinica, that were absent in Nalogomon wetland waters. This could have been due to eutrophication of the waters of Hyena Dam as it originated from human settlements (city estates) outside the park boundary.

Rutunga V;, Karanja NK;, Gachene CKK;, Palm C. "Performance of Zea mays grown under short term duration fallow systems."; 2002.
Rutunga V;, Gachene CKK;, Karanja NK;, Palm CA. "Grain maize yield improvement using Tephrosia vogelii and Tithonia diversifolia biomass at Maseno, Kenya."; 2003. Abstract

This study aimed at assessing the response of maize crop to application of Tephrosia vogelii and Tithonia diversifolia biomass obtained six month-old fallows. The biomass were chopped into 5-cm long pieces and incorporated in the soil one week before planting maize. The natural fallow biomass was used as a control. These organic inputs were supplied with 20 kg phosphorus (P) /ha to attain P recommended rates. Shrub aboveground and litterfall biomass incorporation significantly (p=0.05) increased maize yield. Plots where above ground biomass was removed produced lower maize yield compared to those where the aboveground biomass was retained. Addition of 20 kg P/ha to soil together with the biomass increased maize yield by 40%. P in form of organic materials was insufficient to meet plant nutritional requirement. Residual effect of the biomass was low on the second and third subsequent crops. This may be due to the high rate of nutrient release during the biomass decomposition, the high crop nutrient uptake and also the nutrient losses through soil chemical and physical processes

Rutunga V;, Karanja NK;, Gachene CKK. "Six month-duration Tephrosia vogelii Hook.f. and Tithonia diversifolia (Hemsl.) A.Gray planted-fallows for improving maize production in Kenya."; 2008. Abstract

An experiment including planted Tephrosia vogelii and Tithonia diversifolia fallow species and natural fallow was conducted at Maseno, Kenya, for assessing whether these fallows grown on a nutrient depleted land could produce sufficient green manure in six month period, whether their biomass retained on the same plots or transferred to continuously cropped plots with or without added P fertiliser could increase yield of consecutive maize crops and whether it is useful to regularly repeat these fallows on same plots. First fallow was established in randomized complete blocks with three replicates. At harvesting, biomass was recorded, then either incorporated in situ or transferred to continuous cropped plots split with and without added P fertiliser and monitored for the effect in improving consecutive maize crops. The second fallow was managed on this split plot design. The two-planted shrubs fallows produced more than 9 Mg total dry biomass and accumulated 154 to 234 kg N.ha-1, which were significantly higher compared to the production in the natural fallow. The shrubs were also superior to natural fallow for P accumulation (5-22 kg versus 2 kg.ha-1). The aboveground dry biomass harvested from planted T. vogelii and T. diversifolia and either incorporated in situ or transferred into continuously cropped plots increased maize yields by 2.5 folds compared to the unmanured crop, the control. Supplementing the organic materials with an additional 20 kg P inorganic fertilizer increased the 1st maize yield by about 40%. Productivity in the plots with T. vogelii or T. diversifolia aboveground biomass removal was low for the subsequent fallow and maize crops when compared to the performance in plots where biomass was incorporated. To achieve sustained yields of maize in depleted soils requires regular improved fallowing at least one season alternating with one season maize, and additional P inputs

Rutunga V;, Karanja NK;, Gachene CKK;, Palm C. "Performance of Zea mays grown under short term duration fallow systems."; 2002.
Ruugia SK, Moturi CA. Application of GIS Spatial Interpolation Methods in Auto Insurance Risk Territory Segmentation and Rating. School of Business, University of Nairobi: Operations Research Society of Eastern Africa; 2014. Abstract

Evolution in the field of Geographic Information Systems (GIS) has given rise to sophisticated scientific techniques for collection, analysis and visualization of location based data. These GIS analysis processes are used to reveal some critical patterns of occurrences. Due to inaccurate analysis and covering of insurance risks in Kenya, several companies have closed down prompting the Insurance Regulatory Authority (IRA) and Association of Kenyan Insurers (AKI) set up maximum and minimum premium rates on insurance risks. The set premiums discounts are given to the insured based on records of their annual claims. The main problem here is that the rates cover the entire nation without considering the distribution of risk in various regions. The objective of the paper is to show that GIS can be used to analyse and generate auto insurance risk territories for insurance companies from which an insurance rating model can be developed. We used GIS analysis methods such as inverse distance weighting (IDW) interpolation, data smoothing and clustering techniques and data on auto insurance accidents and crime, geo-coded police stations, roads, socio-economic, aerial and satellite imagery for Nairobi County. A risk territory map showing the distribution of auto insurance risk and other related maps were generated. A prescriptive insurance rating model was then developed that uses generated risk territories to calculate varying rates for auto insurance premiums rates for the respective regions. This research shows that GIS techniques can be used for better visualization of risk at a given location for accurate risk analysis and uptake.

Ruvuna F;, Cartwright TC;, Okeyo AM. "The Kenya Dual-Purpose Goats: its development and utility."; 1985.
RW. N. "HIV prevention--a public health priority. ." East Afr Med J. 2010 Mar;87(3):89-90. No abstract available. PMID: 23057303 [PubMed - indexed for MEDLINE] . 2010.
Rwakatema DS, Ng’ang’a P, Kemoli A. "Prevalence of malocclusion amongst 12-15 year-olds in Moshi, Tanzania, using Bjök’s criteria." E Afr Med J. 2006;83:372-379. Abstract

Objective: To assess the prevalence of malocclusion in 12-15 - year-olds in Moshi, Tanzania.
Design: Cross-sectional study.
Setting: Moshi Municipality, Kilimanjaro region, Tanzania.
Subjects: Two hundred and eighty nine randomly selected primary school children (153 males and 136 females) had a clinical examination for malocclusion traits done.
Results: The overall prevalence of malocclusion was 97.6%. Angle’s Class II and III malocclusion occurred in 6.9% and 11% of the sample respectively. Crowding was encountered very frequently in both jaws, especially in the lower anterior segments. Anterior open bite occurred in 6.2% and the deep bite in 10.7% of the sample. There was no significant gender difference in either the overall prevalence of malocclusion or in the occurrence of the different occlusal traits.
Conclusion: It was noteworthy that some of the malocclusion traits recorded were relatively minor deviations from the normal occlusion. Hence the high prevalence of malocclusion did not necessarily imply a heavy burden of need and demand for orthodontic treatment.

Rwakatema DS, Ng’ang’a P, Kemoli AM. "Awareness and concerns about malocclusion amongst 12-15 year-old children in Moshi, Tanzania." E Afr Med J. 2006;83:92-97.
Rwakatema DS, Ng’ang’a P, Kemoli AM. "Orthodontic treatment needs amongst 12-15 year-olds in Moshi, Tanzania." E Afr Med J. 2007;84:226-232. Abstract

Objective: To assess malocclusion and orthodontic treatment needs among 12-15-year-olds in Moshi municipality, Tanzania.
Design: A cross-sectional study.
Setting: Moshi municipality, Tanzania.
Subjects: Two hundred and eighty nine randomly selected primary school children in Moshi municipality in the year 2003.
Results: Maxillary median diastema occurred in 20.1% of the children. Crowding and spacing in the incisor segments occurred in 41.2% and 28.4% respectively with significantly more crowding in males than in females (p = 0.009). Anterior irregularities occurred in 46% of the sample in the maxilla and 51.6% in the mandible. These irregularities were significantly more common in the females than in males in the maxilla and mandible (p=0.014, p=0.037 respectively). Reverse overjet was extremely rare (0.3%). Anterior openbite and antero-posterior molar relation discrepancies
occurred in 6.2% and 32.5% of the sample, respectively. Crowding, irregularities in the incisor segments and antero-posterior molar relation discrepancies were dominant malocclusion traits in this population. The sample mean DAI score was 24.6 points (CI 95% 23.86–25.36). There was no statistically significant gender difference of DAI scores (p = 0.473). About 65% of the subjects had either no need or had slight need for treatment whereas 35.3% were found with orthodontic treatment needs ranging from elective (21.5%), highly desirable (6.9%) to mandatory (6.9%). There was no significant gender difference in the categories of treatment need (p = 0.942). Unmet orthodontic treatment needs were present in this population with a very small proportion of
subjects exhibiting handicapping malocclusion.
Conclusion: The information from this study forms part of the basis not only for further research, but also for planning orthodontic care in this community where unmet orthodontic treatment needs are present.

Rwigi S, Muthama NJ, Opere A, Opijah FJ. "Assessment of Potential Changes in Hydrologically Relevant Rainfall Statistics over the Sondu River Basin in Kenya Under a Changing Climate." J. Meteorol. 2016. AbstractMetoffice.gov.uk

Scenarios of past, present and intermediate future climates for Sondu River basin were analysed in this study to evaluate the potential changes in hydrologically relevant rainfall statistics that are likely to be observed by the middle of this century as a result of climate change. These climate scenarios were developed by applying dynamical downscaling of the relatively course resolution climate scenarios simulated by the fourth generation coupled Ocean-Atmosphere European Community Hamburg Model (ECHAM4) using the Providing Regional Climates for Impacts Studies (PRECIS) modelling system. The regional climate scenarios, which were available at a daily time-step and a spatial grid resolution of 0.5 over the Eastern Africa region, were matched to the Sondu river basin in the western region of Kenya. The possible hydrological impacts of climate change were assessed by applying the scenarios in a daily time-step hydrological model. The analysis of hydrologically relevant rainfall statistics focussed on determining changes in rainfall patterns and the likely hydrological implications to the basin. The results indicated that more rainfall is projected for the region in the immediate and intermediate future in form of increased seasonal rainfall during the December-January-February (DJF), March-April-May (MAM) and September-October-November (SON) seasons resulting from increased number of days of rainfall and higher probabilities of a wet day following a dry day in a month.

Rwigi S, Muthama NJ, Opere A, Opijah FJ. "Assessment of Potential Changes in Hydrologically Relevant Rainfall Statistics over the Sondu River Basin in Kenya Under a Changing Climate." J. Meteorol. 2016;9:2-12. AbstractJ. Meteorol

Scenarios of past, present and intermediate future climates for Sondu River basin were analysed in this study to evaluate the potential changes in hydrologically relevant rainfall statistics that are likely to be observed by the middle of this century as a result of climate change. These climate scenarios were developed by applying dynamical downscaling of the relatively course resolution climate scenarios simulated by the fourth generation coupled Ocean-Atmosphere European Community Hamburg Model (ECHAM4) using the Providing Regional Climates for Impacts Studies (PRECIS) modelling system. The regional climate scenarios, which were available at a daily time-step and a spatial grid resolution of 0.5˚ over the Eastern Africa region, were matched to the Sondu river basin in the western region of Kenya. The possible hydrological impacts of climate change were assessed by applying the scenarios in a daily time-step hydrological model. The analysis of hydrologically relevant rainfall statistics focussed on determining changes in rainfall patterns and the likely hydrological implications to the basin. The results indicated that more rainfall is projected for the region in the immediate and intermediate future in form of increased seasonal rainfall during the December-January-February (DJF), March-April-May (MAM) and September-October-November (SON) seasons resulting from increased number of days of rainfall and higher probabilities of a wet day following a dry day in a month. Based on these scenarios, the combination of the wetter antecedent conditions and the more rain days in a month will result in more surface runoff being generated which will not only have implications on the water balance but also the water quality in the basin.

Key Words: climate change, climate scenarios, climate modelling, climate downscaling, Sondu Basin, Kenya

Rwigi S, Ouma G, Ouma C, Oloo F, Wekesa S, Olang L. "Effects of rainfall variability on water availability in the drylands of Northern Kenya under a changing climate.". In: AGU Fall Meeting Abstracts.; 2021. Abstract

The availability of water in the dryland regions is a function of climatic and land conditions, which determine the amount and distribution of atmospheric water and subsequent partitioning of that water into different hydrological components. Rainfall variability in the drylands affects water, food and livelihood security in the sensitive landscapes. For effective water resource management, it is important to quantify the effect of rainfall variability on the available water resource components to support food security, given that a majority of livelihoods in the drylands are dependent on rainfall. This study assessed rainfall variability and its effects on stream flows in the dryland regions of Turkana County in Northern Kenya. The Coefficient of Variation (CV), Standardised Precipitation Anomaly (SPA) and Mann-Kendal test approaches were used to determine variability and trends of rainfall. The Soil and Water Assessment Tool (SWAT), was employed to simulate hydrological components, including surface runoff, interflow, groundwater flow and the eventual water yield in the streams. The model simulations were driven by the Climate Hazards Group InfraRed Precipitation with Station CHIRPS and the Coordinated Regional Climate Downloading Experiment CORDEX projected rainfalls to establish the current and future water availability respectively. From the results, CV values ranging from 20 to 99% were obtained indicating that the region experiences moderate to high rainfall variability, often resulting in moderate to extreme floods and droughts in the area. The model simulations indicated that the stream-flows are increasing towards the 2020s decade compared to what was flowing in the 1980s decade, as observed between 1981 and 2020 using rainfall. This is probably a result of the increased rainfall observed in this region over the las four decades. Using Representative Concentration Pathways RCP 4.5 and RCP 8.5 projected rainfall scenarios, the model indicated that future stream flows will be higher than present. The findings show that, in the face of climate change scenarios, proper land management is required to promote water and food security in the drylands of sub-Saharan Africa in the future

Rwigi SK, Muthama JN, Opere AO, Opijah FJ, Gichuki FN. "Simulated Impacts of Climate Change on Surface Water Yields over the Sondu Basin in Kenya." International Journal of Innovation Education and Research. 2016;4(8):160-172. AbstractInternational Journal of Innovation Education and Research

Potential impacts of climate change on surface water yields over the Sondu River basin in the western region of Kenya were analysed using the Soil and Water Assessment Tool (SWAT) model with climate input data obtained from the fourth generation coupled Ocean-Atmosphere European Community Hamburg Model (ECHAM4) using the Providing Regional Climates for Impacts Studies (PRECIS) model. Daily time step regional climate scenarios at a spatial grid resolution of 0.44 Ëš over the Eastern Africa region were matched to the Sondu river basin and used to calibrate and validate the SWAT model. Analysis of historical and projected rainfall over the basin strongly indicated that the climate of the area will significantly change with wetter climates being experienced by 2030 and beyond. Projected monthly rainfall distribution shows increasing trends in the relatively dry DJF and SON seasons while showing decreasing trends in the relatively wet MAM and JJA seasons. Potential changes in water yields resulting from climate change were computed by comparing simulated yields under climate change scenarios with those simulated under baseline conditions.

Rwigi SK, Muthama JN, Opere AO, Opijah FJ, Gichuki FN. "imulated Impacts of Climate Change on Surface Water Yields over the Sondu Basin in Kenya ." International Journal for Innovation Education and Research. 2016;4(8):160-172. AbstractInternational Journal for Innovation Education and Research

Potential impacts of climate change on surface water yields over the Sondu River basin in the western region of Kenya were analysed using the Soil and Water Assessment Tool (SWAT) model with climate input data obtained from the fourth generation coupled Ocean-Atmosphere European Community Hamburg Model (ECHAM4) using the Providing Regional Climates for Impacts Studies (PRECIS) model. Daily time step regional climate scenarios at a spatial grid resolution of 0.44˚ over the Eastern Africa region were matched to the Sondu river basin and used to calibrate and validate the SWAT model. Analysis of historical and projected rainfall over the basin strongly indicated that the climate of the area will significantly change with wetter climates being experienced by 2030 and beyond. Projected monthly rainfall distribution shows increasing trends in the relatively dry DJF and SON seasons while showing decreasing trends in the relatively wet MAM and JJA seasons. Potential changes in water yields resulting from climate change were computed by comparing simulated yields under climate change scenarios with those simulated under baseline conditions.

There was evidence of substantial increases in water yields ranging between 88% and 110% of the baseline yields by 2030 and 2050 respectively. Although simulated water yields are subject to further verification from observed values, this study has provided useful information about potential changes in water yields as a result of climate change over the Sondu River basin and in similar basins in this region

Keywords: Simulated Impacts; Climate Change; Water Yields; Sondu Basin; Kenya

Ryan T, K'Oyugi BO. The United Nations Common Country Assessment for Kenya 2001. Nairobi: UNDP Kenya Country Office; 2001.
Rylander F, Peng B, Wheeler J. "Bike Share Usage Prediction in London.". Submitted. Abstract
n/a
Ryser ET, Arimi SM, Bunduki MM, Donnelly CW. "Recovery of different Listeria ribotypes from naturally contaminated, raw refrigerated meat and poultry products with two primary enrichment media.". 1996. Abstract

Isolation rates for Listeria monocytogenes and the other Listeria spp. typically improve when samples are enriched in more than one primary enrichment medium. This study evaluated the abilities of two primary enrichment media, University of Vermont-modified Listeria enrichment broth (UVM) and Listeria repair broth (LRB), to recover different ribotypes of Listeria spp. from raw meat and poultry samples. Forty-five paired 25-g retail samples of ground beef, pork sausage, ground turkey, and chicken (160 samples) underwent primary enrichment in UVM and LRB (30 degrees C for 24 h) followed by secondary enrichment in Fraser broth (35 degrees C for 24 and 40 h) and plating on modified Oxford agar. After 24 h of incubation of 35 degrees C, 608 Listeria colonies from selected positive samples were biochemically confirmed as L. monocytogenes (245 isolates), L innocua (276 isolates), and L. welshimeri (89 isolates) and then ribotyped with the automated Riboprinter microbial characterization system (E. I. du Pont de Nemours & Co., Inc.). Thirty-six different Listeria strains comprising 16 L. monocytogenes (including four known clinical ribotypes), 12 L. innocua, and 8 L. welshimeri ribotypes were identified from selected positive samples (15 samples of each product type; two UVM and two LRB isolates per sample). Twenty-six of 36(13 L. monocytogenes) ribotypes were detected with both UVM and LRB, whereas 3 of 36 (1 L. monocytogenes) and 7 of 36 (3 L. monocytogenes) Listeria ribotypes were observed with only UVM or LRB, respectively. Ground beef, pork sausage, ground turkey, and chicken yielded 22 (8 L. monocytogenes), 21 (12 L. monocytogenes), 20 (9 L. monocytogenes), and 19 (11 L. monocytogenes) different Listeria ribotypes, respectively, with some Listeria ribotypes confined to a particular product. More importantly, major differences in both the number and distribution of Listeria ribotypes, including previously recognized clinical and nonclinical ribotypes of L. monocytogenes, were observed when 10 UVM and 10 LRB isolates from five samples of each product were ribotyped. When a third set of six samples per product type was examined from which two Listeria isolates were obtained by using only one of the two primary enrichment media, UVM and LRB failed to detect L. monocytogenes (both clinical and nonclinical ribotypes) in two and four samples, respectively. These findings stress the importance of using more than one primary enrichment medium and picking a sufficient number of colonies per sample when attempting to isolate specific L. monocytogenes strains during investigations of food-borne listeriosis.

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