PROF. GEORGE OKOYE KRHODA, CBS Department of Geography and Environmental Studies University of Nairobi P.O
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The Central Kenya Peralkaline Province: Insights Into the Evolution of Peralkaline Salic Magmas
The central Kenya peralkaline province: Insights into the evolution of peralkaline salic magmas. Ray Macdonald, Bruno Scaillet To cite this version: Ray Macdonald, Bruno Scaillet. The central Kenya peralkaline province: Insights into the evolution of peralkaline salic magmas.. Lithos, Elsevier, 2006, 91, pp.1-4, 59-73. 10.1016/j.lithos.2006.03.009. hal-00077416 HAL Id: hal-00077416 https://hal-insu.archives-ouvertes.fr/hal-00077416 Submitted on 10 Jul 2006 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. The central Kenya peralkaline province: Insights into the evolution of peralkaline salic magmas R. Macdonalda, and B. Scailletb aEnvironment Centre, Lancaster University, Lancaster LA1 4YQ, UK bISTO-CNRS, 1a rue de la Férollerie, 45071 Orléans cedex 2, France Abstract The central Kenya peralkaline province comprises five young (< 1 Ma) volcanic complexes dominated by peralkaline trachytes and rhyolites. The geological and geochemical evolution of each complex is described and issues related to the development of peralkalinity in salic magmas are highlighted. The peralkaline trachytes may have formed by fractionation of basaltic magma via metaluminous trachyte and in turn generated pantellerite by the same mechanism. Comenditic rhyolites are thought to have formed by volatile-induced crustal anatexis and may themselves have been parental to pantelleritic melts by crystal fractionation. -
Population Density and Spatial Patterns of Informal Settlements in Nairobi, Kenya
sustainability Article Population Density and Spatial Patterns of Informal Settlements in Nairobi, Kenya Hang Ren 1,2 , Wei Guo 3 , Zhenke Zhang 1,2,*, Leonard Musyoka Kisovi 4 and Priyanko Das 1,2 1 Center of African Studies, Nanjing University, Nanjing 210046, China; [email protected] (H.R.); [email protected] (P.D.) 2 School of Geography and Ocean Science, Nanjing University, Nanjing 210023, China 3 Department of Social Work and Social Policy, Nanjing University, Nanjing 210023, China; [email protected] 4 Department of Geography, Kenyatta University, Nairobi 43844, Kenya; [email protected] * Correspondence: [email protected]; Tel.: +86-025-89686694 Received: 21 August 2020; Accepted: 15 September 2020; Published: 18 September 2020 Abstract: The widespread informal settlements in Nairobi have interested many researchers and urban policymakers. Reasonable planning of urban density is the key to sustainable development. By using the spatial population data of 2000, 2010, and 2020, this study aims to explore the changes in population density and spatial patterns of informal settlements in Nairobi. The result of spatial correlation analysis shows that the informal settlements are the centers of population growth and agglomeration and are mostly distributed in the belts of 4 and 8 km from Nairobi’s central business district (CBD). A series of population density models in Nairobi were examined; it showed that the correlation between population density and distance to CBD was positive within a 4 km area, while for areas outside 8 km, they were negatively related. The factors determining population density distribution are also discussed. We argue that where people choose to settle is a decision process between the expected benefits and the cost of living; the informal settlements around the 4-km belt in Nairobi has become the choice for most poor people. -
Slum Toponymy in Nairobi, Kenya a Case Study Analysis of Kibera
Urban and Regional Planning Review Vol. 4, 2017 | 21 Slum toponymy in Nairobi, Kenya A case study analysis of Kibera, Mathare and Mukuru Melissa Wangui WANJIRU*, Kosuke MATSUBARA** Abstract Urban informality is a reality in cities of the Global South, including Sub-Saharan Africa, which has over half the urban population living in informal settlements (slums). Taking the case of three informal settlements in Nairobi (Kibera, Mathare and Mukuru) this study aimed to show how names play an important role as urban landscape symbols. The study analyses names of sub-settlements (villages) within the slums, their meanings and the socio-political processes behind them based on critical toponymic analysis. Data was collected from archival sources, focus group discussion and interviews, newspaper articles and online geographical sources. A qualitative analysis was applied on the village names and the results presented through tabulations, excerpts and maps. Categorisation of village names was done based on the themes derived from the data. The results revealed that village names represent the issues that slum residents go through including: social injustices of evictions and demolitions, poverty, poor environmental conditions, ethnic groupings among others. Each of the three cases investigated revealed a unique toponymic theme. Kibera’s names reflected a resilient Nubian heritage as well as a diverse ethnic composition. Mathare settlements reflected political struggles with a dominance of political pioneers in the village toponymy. Mukuru on the other hand, being the newest settlement, reflected a more global toponymy-with five large villages in the settlement having foreign names. Ultimately, the study revealed that ethnic heritage and politics, socio-economic inequalities and land injustices as well as globalization are the main factors that influence the toponymy of slums in Nairobi. -
Yield and Nutritive Attributes Are Not Considered by Farmers in Choice of Sweet Potato Varieties Grown in East Kamagak Location – Homabay County-Kenya
The International Journal Of Science & Technoledge (ISSN 2321 – 919X) www.theijst.com THE INTERNATIONAL JOURNAL OF SCIENCE & TECHNOLEDGE Yield and Nutritive Attributes Are Not Considered by Farmers in Choice of Sweet Potato Varieties Grown in East Kamagak Location – Homabay County-Kenya Onyango Rosally Ph.D. Student, Department of Agricultural Science and Technology, Kenyatta University, Nairobi, Kenya Dr. Wilson Thagana Senior Lecturer, Department of Agricultural Science and Technology, Kenyatta University, Nairobi, Kenya Dr. Joseph Gweyi Senior Lecturer, Department of Agricultural Science and Technology, Kenyatta University, Nairobi, Kenya Dr. Laura Karanja Researcher, Kenya Agricultural Research Institute, Njoro, Kenya Abstract: Sweet potato is one of the most important crops for food security and income generation in Kenya. The crop is increasing in importance as adverse climate changes limit crop production in many areas. Understanding the genetic diversity of germplasm of crop species is of importance for its rational management and use. Identification of the sweet potato landraces is paramount in addressing food security not only in the study region but elsewhere in the country. Morphological characterization of the accessions facilitates the identification of duplicates and unique traits which is important in the future improvement of the crop having the desired characteristics. The study aimed at identifying the factors that farmers consider in selecting the sweet potato variety to plant in East Kamagak location of Rachuonyo District, Homabay County. The experiment started with survey and germplasm collection aided by use of questionnaire. The accessions were used for morphological characterization, The results showed that 30% 0f the farmers selected sweet potato to plant based on taste compared to 24% farmers who preferred high yielding varieties. -
SK NCPWD List of Hospitals.Xlsx
S/NO PROVINCE DISTRICT HEALTH FACILITY NAME TYPE OF HEALTH FACILTY 1 central Gatundu south Gatundu District Hospital District Hospital 2 central kirinyaga east kianyaga sub-District Hospital Sub-District Hospital 3 central Thika west Thika District Hospital District Hospital 4 central Ruiru Ruiru Sub-District Hospital Sub-District Hospital 5 central kabete Nyathuna Sub-District hospital Sub-District Hospital 6 central Murang`a west kangema Sob-District Hospital Sub-District Hospital 7 central kiambaa kiambu District Hospital District Hospital 8 central kiambaa Kihara Sub-District Hospital Sub-District Hospital 9 central Murang`a east Murang`a District Hospital District Hospital 10 central murang`a east Muriranjas District Hospital District Hospital 11 central kinangop Engineer District Hospital District Hospital 12 central kirinyaga central Kerugoya District Hospital District Hospital 13 central kiambu west Tigoni District Hospital District Hospital 14 central Murang`a south Maragwa Distric Hospital District Hospital 15 central Mathira east Karatina District Hospital District Hospital 16 central Mukurweini Mukurweini Sub-District hospital Sub-District Hospital 17 central kirinyaga south Kimbimbi Sub-Distric Hospital Sub-District Hospital 18 central Nyeri central Nyeri provincial General hospital Provincial Hospital 19 central Nyeri central Mt. kenya Sub-district Hospital Sub-District Hospital 20 central Nyandarua central Ol`kalou District Hospital District Hospital 21 central Nyandarua north Nyahururu District Hospital District Hospital -
GEORGE EVANS OWINO (P Department of Sociology, School Of
GEORGE EVANS OWINO (PH.D.- MAGNA CUM LAUDE) Department of Sociology, School of Humanities & Social Sciences, Kenyatta University P.O. Box 43844, 00100, Nairobi, Kenya. Office: +254 (0) 20 8710901 Ext. 4566 Cell-Phone: +254 (0) 722614878 Email: [email protected]; [email protected] EDUCATION Ph.D University of Bielefeld, School of Public Health, May 2015 Major area: Experiences and Definitions of Health and Illness, Qualitative Research Methods, Public Health, Evidence-based Interventions. Dissertation Title: Illness Experiences of People Living with HIV in Kenya: A Case Study of Kisumu County. Chair: Prof. Dr. Alexander Krämer M.A. Kenyatta University, Department of Sociology, October 2005 Thesis Title: Preferences and Utilization of Health Care Services among Slum Residents in Kenya: A Case of Mathare Valley, Supervisor: Prof. Paul P. W. Achola B.A. Kenyatta University, Faculty of Arts, October 1997 Major subjects: Sociology & Religious Studies, Minor: Philosophy, communication skills, development studies. Languages English, German, Swahili, Dholuo SPECIALIZATION & RESEARCH INTERESTS Medical Sociology; Sociology of Health and Illness; Qualitative Health and Social Research Methods; Philosophy of Social Sciences; Health Systems Research; Monitoring and Evaluation; Evidence-Based Interventions, Early Childhood Development; Health Seeking Behaviour; HIV Prevention with Young People; Parent-Child Interaction Processes; Livelihoods. SCHOLASTIC HONOURS AND AWARDS 2012: Doctoral Scholarship, Sponsor: Kenyan-German Postgraduate Training -
A CASE of MATHARE and SOWETO SLUMS, NAIROBI •• Margaret N
HEALTH FACILITY UTILIZATION DIFFERENTIALS: A CASE OF MATHARE AND SOWETO SLUMS, NAIROBI •• Margaret N. Keraka and Mr. Ernest Oyieko, Department of Environmental Health, Kenyatta University Evidence from studies carried out by KDHS (1998), UNCHS (1996), Hardoy (1990), Republic of Kenya (1988), UNICEF and WHO 1984 and AMREF (1989) indicate high levels of child mortality in Nairobi. This has been attributed to disparities in availability and utilization of health care facilities and services. This paper, therefore, aims at examining the extent of provision and utilization of health care services, factors affecting utilization and provision of health care facilities, impact ofthe existing disparities in the usage and provision of health on child morbidity, indigenous medical beliefs relating to common ailments, use of traditional and bio- medical service. It also gives recommendation of how such disparities and their impact can be avoided. Primary data collected using in-depth interviews and focus group discussion was used. The respondents were mainly caretakers of children under five years and clinical officers from private and public hospitals. Secondary data was also obtained from the KDHS (1998) and thel999 Kenya population Census.The study established that there were fewer modem health care facilities and that the rate of utilization was low. This is evident from the fact that there were more disease incidences reported in study areas compared to those found in the 1999 population Census for Nairobi province.It was recommended that the government gives small loans to slum dwellers that can be used to start income generating activities. This will in turn assist them to participate effectively in the cost-sharing expenditure in medicine. -
KENYA: MEASLES OUTBREAK 30 April 2006 the Federation’S Mission Is to Improve the Lives of Vulnerable People by Mobilizing the Power of Humanity
KENYA: MEASLES OUTBREAK 30 April 2006 The Federation’s mission is to improve the lives of vulnerable people by mobilizing the power of humanity. It is the world’s largest humanitarian organization and its millions of volunteers are active in over 183 countries. In Brief This Bulletin (no. 1/2006) is being issued for information only, and reflects the situation and the information available at this time. The Federation is not seeking funding or other assistance from donors for this operation at this time. Activities undertaken are aligned with the International Federation's Global Agenda, which sets out four broad goals to meet the Federation's mission to "improve the lives of vulnerable people by mobilizing the power of humanity". Global Agenda Goals: · Reduce the numbers of deaths, injuries and impact from disasters. · Reduce the number of deaths, illnesses and impact from diseases and public health emergencies. · Increase local community, civil society and Red Cross/Red Crescent capacity to address the most urgent situations of vulnerability. · Reduce intolerance, discrimination and social exclusion and promote respect for diversity and human dignity. For further information specifically related to this operation please contact: · In Kenya: Abbas Gullet, Secretary General, Kenya Red Cross Society1, Nairobi; Email: [email protected]; Phone +254.20.60.35.93; Fax +254.20.60.35.89 · In Kenya: Esther Okwanga, Federation Head of East Africa Sub-Regional Office; Email: [email protected]; Phone +254.20.283.50.00; Fax +254.20.271.27.77 · In Geneva: Amna al Ahmar, Federation Regional Officer for Eastern Africa, Africa Dept.; Email: [email protected]; Phone +41.22.730.44.27; Fax +41.22.733.03.95 All International Federation assistance seeks to adhere to the Code of Conduct for the International Red Cross and Red Crescent Movement and Non-Governmental Organizations (NGO's) in Disaster Relief and is committed to the Humanitarian Charter and Minimum Standards in Disaster Response (Sphere) in delivering assistance to the most vulnerable. -
Naturals Magazine Issue01
ISSUE NO. 01 AUGUST 2011 – OCTOBER 2011 1 A PUBLICATION OF ECOTOURISM KENYA Linking tourism, conservation and communities AUGUST 2011 – OCTOBER 2011 this edition has been sponsored by the African Fund for Endangered Wildlife (AFEW). inside>> Exceptional gateway: Mt. Suswa Conservancy Understanding 7 ecotourism 8 The ecotourism necessity 14 Zero waste habits profits youths 17 2 ISSUE NO. 01 AUGUST 2011 – OCTOBER 2011 EDITORIAL PAGE ISSUE NO. 01 AUGUST 2011 – OCTOBER 2011 3 Naturals is a quarterly magazine owned and published by Ecotourism Kenya, a civil society organization formed in 1996 to promote ecotourism practices in Kenya. EK Board Members Andrew Muigai Chairman elcome technical knowledge from Elizabeth Kimotho Secretary to the first relevant practical experience to guide investment John Duffy Treasurer edition of Message W planning and management Dr. Mordecai Ogada Naturals magazine. from the decision-making. Training George Kamau It’s a great pleasure institutes offering ecotourism Hadley Becha to introduce this new courses need a magazine Dr. Mohanjeet Brar publication meant to enrich that provides training Kahindi Lekalhaile and support the tourism resources as well as a Judy Kepha Gona industry in Kenya. The editor career guide for aspiring Elizabeth Wachira initiation of the magazine practitioners. An enlightened has been motivated by workforce armed with the EK Secretariat a drastic rise in requests necessary skills, knowledge Kahindi Lekalhaile for authentic information and education about the Chief Executive Officer about ecotourism, and importance of ecotourism Chris Magero an increasing demand is essential for ensuring for ecotourism resources sustainable tourism through Eco-Certification Coordinator by many tourism adoption of responsible Gonzaga Mungai stakeholders. -
The Cave Exploration Group of East Africa and Volcanic Caves in Kenya
21 Int. J. Speleol., 27 B (1/4), (1998); 21-31. THE CAVE EXPLORATION GROUP OF EAST AFRICA AND VOLCANIC CAVES IN KENYA Michael Declan Kennedy ABSTRACT This paper looks at the history of the Cave Exploration Group of East Africa with special reference to the exploration of volcanic caves. It demonstrates that the group has concentrated on two main areas, the Chyulu Hills and Mt. Suswa, although other areas have also been studied. The Cave Exploration Group of East Africa has had to cope with various problems. The most important of which are related to the socio-economic condi- tions of a developing country. These problems have not prevented the group from making a valuable contribu- tion to vulcanospeleology. Keywords: Caving Club, vulcanospeleology, Kenya FORMATION OF THE CAVE EXPLORATION GROUP OF EAST AFRICA The history of cave exploration in Kenya goes back at least 5,000 years. Dr. L.S.B. Leakey found evidence of human habitation at Gamble's Cave at Elmentaita. This dated from the Upper Kenya Capsian period (5,000-10,000 b.p.) (Clarke, 1996). Various Kenyan communities used caves as refuges, burial centres, for minerals and as religious centres (Mwaniki, 1973). The first published account of caves in Kenya is Joseph Thomson's account of the Mt. Elgon caves, although he mistakenly decided that these were formed by an ancient superior civilization mining for "precious stones or possible some precious metal" (Thomson, 1885). The caves are formed by water erosion in solu- ble pyroclastics, but have been extended by mining (Bristow, 1961). Although the Cave Exploration Group of East Africa was formed during April and May 1964, its origins lie slightly earlier. -
A Survey of Farmers' Perceptions And
Afr. J. Food Agric. Nutr. Dev. 2017; 17(3): 12157-12178 DOI: 10.18697/ajfand.79.16330 A SURVEY OF FARMERS’ PERCEPTIONS AND MANAGEMENT STRATEGIES OF THE SWEET POTATO WEEVIL IN HOMA BAY COUNTY, KENYA Ochieng LA1, 2*, Githiri SM2, Nyende BA2 and LK Murungi 2 Lilian A Ochieng *Corresponding author email: [email protected] 1Department of Horticulture, University of Kabianga P.O Box 2030-20200, Kericho, Kenya 2Department of Horticulture, Jomo Kenyatta University of Agriculture and Technology P.O Box 62000-00100, Nairobi, Kenya DOI: 10.18697/ajfand.79.16330 12157 ABSTRACT Sweet potato (Ipomoea batatas L.) is one of the most widely grown root crops worldwide. In Africa, it is grown in small plots by poorer farmers. Production of the crop is extremely low in Kenya as compared to other African countries due to the existence of common insect pests. Sweet potato weevil (Cylas spp.) is known as the biggest pit fall for production and productivity of the crop in the country. This study sought to determine the opinion of sweet potato farmers concerning sweet potato resistance to Cylas spp. and determine control strategies employed by sweet potato farmers in managing the pest. The study also sought to determine the sweet potato production constraints faced by the farmers in Homa Bay County, Kenya. The study was conducted using a Participatory Rural Appraisal approach in which 269 farmers in the County were interviewed on the sweet potato varieties with field resistance to Cylas spp., the crops’ production constraints (with emphasis on damage by Cylas spp.) and farmers’ control strategies in regard to the weevil. -
Simon Mang'erere Onywere
Onywere Summer School 2005 Morphological Structure and the Anthropogenic Dynamics in the Lake Naivasha Drainage Basin and its Implications to Water Flows Simon Mang’erere Onywere Department of Environmental Planning and Management, Kenyatta University P.O. Box 43844 Nairobi 00100, Kenya E-mail: [email protected] Abstract Throughout its length, the Kenyan Rift Valley is characterized by Quaternary volcanoes. At Lake Naivasha drainage basin, the Eburru (2830m) and Olkaria (2434m) volcanic complexes and Kipipiri (3349m), Il Kinangop (3906m) and Longonot (2777m) volcanoes mark the terrain. Remote sensing data and field survey were used to make morphostructural maps and to determine the structural control and the land use impacts on the drainage systems in the basin. Lake Naivasha is located at the southern part of the highest part of Kenya’s Rift Valley floor in a trough marked to the south and north by Quaternary normal faults and extensional fractures striking in a N18°W direction. The structure of the rift floor influences the axial geometry and the surface process. Simiyu and Keller (2001) interpret the rift floor structure as due to thickening related to the pre-rift crustal type and modification by magmatic processes. The rift marginal escarpments of Sattima and Mau form the main watershed areas. From the marginal escarpments the Rift Valley is formed by a series of down-stepped fault scraps. These influence the nature of the soils and the rainfall regime. The drainage is also influenced by the fault trends. At the Malewa fault line for example the drainage is south-easterly influenced by the trend of the Malewa fault line (Thompson and Dodson, 1963).