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Browsing RP-Department of Biological Sciences by Issue Date

Browsing RP-Department of Biological Sciences by Issue Date

Now showing items 1-20 of 36

US-Africa Collaboration in Guided Inquiry Synthesis and Characterization of the “Frustrated” Amino Acid-Based Calixarene Molecules

Rugut, Joseph K.; Rugutt, Kipgeno J.; Koske, Julius; Chirchir, Denis; Cheruiyot, Gilbert; Koech, Joel; Mibei, Erick; Obel, Millie Chepkemoi; Bii, Christine Chemutai; Rop, Ronald (Chem. Educator, 2010-09-23)

The Department of Chemistry at Missouri State University-West Plains (MSU-WP) is internationalizing the existing research activities by initiating a collaborative Kenya-U.S. Chiral Science (chiroscience) project. The ...
Immunization coverage and its determinants among children aged 12 - 23 months in a peri-urban area of Kenya

Maina, Lilian Chepkemoi; Karanja, Simon; Kombich, Janeth (The Pan African Medical Journal, 2013-01-02)

Introduction: The institutionalization of strong immunization services over recent years has ensured that today more than 70% of the worlds' targeted population is reached. In Kenya, approximately 77% of children aged ...
Movement Patterns And Home Range Sizes Of The Rothschild’s Giraffes (Giraffa camelopardalis Rothschildii) Translocated To Ruma National Park, Kenya.

Caroline, Anyango Dolphine; Adhiambo, Were - Kogogo Pamella Jael (The International Journal Of Engineering And Science (IJES), 2013-07)

The need for management of small, wild populations has been given limited attention. The Rothschild’s giraffe is poorly represented in East Africa, therefore, it is important that its populations and environments should ...
US-Africa Collaboration in a Chemical Education Project Involving Analysis of Amaranthus Grain Oil from Selected Agro-Ecological Zones in Kenya

Rugutt, Joseph K.; Okoth, Kevin Otieno; Wanjau, Ruth N.; Gikonyo, Nicholas K.; Machocho, Alex; Rugutt, Kipgeno J.; Rykhlya, Kristina Y.; Harris, Keil B.; Wilson, Katie R. (Chem. Educator, 2014)

Amaranthus is a cosmopolitan genus of annual and perennial plants. Worldwide, amaranths are cereals, leaf vegetables, or ornamental plants. Two African species of amaranthus grain; Amaranthus cruentus and Amaranthus ...
A Quantitative Analytical Chemistry Research-based Experiment Involving Comparative Analysis of Amaranth Grain Oils Extracted from Embu and Meru Districts in Kenya

Rugutt, Joseph K.; Okoth, Kevin Otieno; Wanjau, Ruth N.; Gikonyo, Nicholas K.; Machocho, Alex; Rugutt, Kipgeno J.; Obel, Millie Chepkemoi; Mibei, Erick (The Chemical Educator, 2014)

: Amaranthus cruentus grains from Meru and Nyeri regions in Kenya were milled and oil extracted by the Bligh and Dyer method. Samples of oil from grains in the same regions extracted by cold pressing method were obtained ...
Quantifying seasonal population fluxes driving rubella transmission dynamics using mobile phone data

Wesolowski, Amy; Metcalf, C. J. E.; Eagle, Nathan; Kombich, Janeth; Grenfell, Bryan T.; Bjørnstadi, Ottar N.; Lessler, Justin; Tatem, Andrew J.; Buckee, Caroline O. (Proceedings of the National Academy of Sciences, 2014-12-11)

Changing patterns of human aggregation are thought to drive annual and multiannual outbreaks of infectious diseases, but the paucity of data about travel behavior and population flux over time has made this idea difficult ...
Detection and typing of Human Papillomavirus in urine from patients attending a sexually transmitted infections clinic in Nairobi County, Kenya

Langat, Hillary K.; Ongus, Juliette R.; Kombich, Janeth C.; Omire, Agnes; Baliach, Caroline C.; Kerosi, Danvas O.; Lihana, Raphael W.; Lwembe, Raphael M. (Journal of Biology, Agriculture and Healthcare, 2015)

Human papillomavirus (HPV) is a common sexually transmitted infection (STI) that has been etiologically linked to cervical cancer. Different types of samples can be used for cervical screening, including Pap test or ...
Effects of essential oils of lemon grass, Cymbopogon citratus and the Mexican marigold, Tagetes minuta on mortality and oviposition in adult sandflies, Phlebotomus duboscqi

Ngeiywa, Moses; Njagi, Peter G. N.; Mulaa, Margaret; Ingonga, Johnstone; Nyamwamu, Lydia B.; Ombati, Cyprian; Ngumbi, Philip; Kimutai, Albert (International Journal of Biomedical Research, 2015)

The efficacy of the essential oils of Cymbopogon citratus and Tagetes minuta in causing mortality in adults of the sandfly Phlebotomus duboscqi was tested in a laboratory bioassay. The effect of the oils on oviposition ...
Effective Dose of Crude Ethanol and Aqueous Extracts of Phytolacca Dodecandra (L’ Herit) on Anopheles Gambiae (Diptera: Culicidae) Larvae

Owiti, Yugi Jared (Journal of Mosquito Research 2015, Vol.5, No.11, 1-6, 2015)

Objective: malaria vector control is either by adult or larvae management. This study reports on the effective dose of crude ethanol and aqueous extracts of leaf and mature green fruits of Endod; Phytolacca dodecandra (L’ ...
Micronutrients I2, Fe2+, Mg, K and naconcentration in typhalatifoliaand cyperus papyrus reedSaltsof Busia and Lugari regions of western Kenya

Wangila, Tsikhungu P; Tsimbiri, Pamella; Nyongesa, Peter; Mule, Shadrack; Wati N, Lenah; Kinyanjui, Thomas (International journal of science and research, 2015-01-01)

Background: The concentrations of micronutrients namelyI2, Fe2+, Mg, K and Nawere determined in indigenous salt samples of Busia and Lugari regions of Western Kenya in 2013. Methods: pH measurement was done using a JENWAY ...
Phytochemistry and antibacterial activity of extracts from medicinal plant Olea africana

Kemboi, Douglas; Kiplimo, Joyce Jepkorir; Chirchir, Denis (African Journal of Pharmacy and Pharmacology, 2016-03-15)

Increase in prevalence of resistant microorganisms especially to synthetic drugs, has necessitated the need to search for new bioactive compounds having natural origin. Phytochemical investigation of Olea africana extracts ...
Repellent effects of the essential oils of Cymbopogon citratus and Tagetes minuta on the sandfly, Phlebotomus duboscqi

Kimutai, Albert; Ngeiywa, Moses; Mulaa, Margaret; Njagi, Peter G. N.; Ingonga, Johnstone; Nyamwamu, Lydia B.; Ombati, Cyprian; Ngumbi, Philip (BMC Research Notes, 2017)

Background: The sandfly, Phlebotomus duboscqi is a vector of zoonotic cutaneous leishmaniasis (ZCL) that is an important public health problem in Eastern Africa. Repellents have been used for protection of humans against ...
Effect of Temperature and pH on Egg Viability and Pupation of Anopheles arabiensis Patton (Diptera: Culicidae): Prospect for Optimizing Colony Reproduction Procedures

Owiti, Yugi Jared; Misire, Christopher (Jordan Journal of Biological Sciences, 2017-01)

Optimizing procedures for mass rearing mosquitoes for practices akin to the sterile insect techniques or routine laboratory activities is crucial. The present study evaluated the impact of nutrients, temperature, egg ...
Prevalence and genetic diversity of rotavirus infection in children with acute gastroenteritis in a hospital setting, Nairobi Kenya in post vaccination era: a cross-sectional study

Agutu, Mary-Theresa; Ongus, Julliette; Kombich, Janeth; Kamenwa, Rose; Nyangao, James; Kagira, John; Ogutu, Adelaide Ayoyi; Bitek, Austine (The Pan African Medical Journal., 2017-01-24)

Introduction: Rotavirus is the leading cause of severe diarrhoea among infants and young children. Each year more than 611 000 children die from rotavirus gastroenteritis, and two million are hospitalized, worldwide. In ...
Inhibitory effect of crude ethanol and water extracts of phytolacca dodecandra (l’ herit) on embryonic development of anopheles gambiae (diptera: culicidae)

Yugi, Jared O; Kiplimo, Joyce J (Jordan journal of biological sciences, 2017-05-29)

Plant extracts have been demonstrated to interfere with activities of juvenile hormones that facilitate egg hatching by the embryo. In the present study we demonstrate ovicidal effect of crude ethanol and water extracts ...
Phytochemical Analysis and Antimicrobial Activities of Cyperus rotundus and Typha latifolia Reeds Plants from Lugari Region of Western Kenya

Wangila, T P (Pharmaceutical analytical chemistry, 2017-11-06)

Phytochemical compounds and antimicrobial activity of Cyperus rotundus and Typha latifolia reeds plants from Western Kenya, which are used in management and treatment of various ailments, were determined. Samples ...
Complementary Effects of Crude Ethanol Phytolacca dodecandra (L’ Herit) Extracts with House Characteristics on Densities of Indoor Resting Mosquitoes in Western Kenya

Owiti, Yugi Jared (Journal of Mosquito Research 2020, Vol.10, No.3, 1-10, 2020)

t Intensive use of insecticide treated nets, indoor residual sprays and timely treatment of malaria patients saw reduced malaria parasitaemia from 11% to 8% by 2015. However, the sorry housing characteristics in a number ...
Adsorption of anionic dye (Reactive black 5) using macadamia seed Husks: Kinetics and equilibrium studies

Felista, Mutunga M.; Wanyonyi, Wycliffe C.; Ongera, Gilbert (Scientific African, 2020-01)

Adsorption of Reactive black 5 dye currently used in textile industries was investigated using Macadamia Seed Husks (MSH) from a local Macadamia nut processing industry. Adsorption increased with increase in contact time, ...
Kinetic and equilibrium studies of Congo red dye adsorption on cabbage waste powder

Wekoye, Joan N; Wanyonyi, Wycliffe C; Wangila, Phanice T; Tonui, Mathew K (Environmental chemistry and ecotoxicology, 2020-01-29)

In this work, the potential of utilizing of dried Cabbage Waste Powder (CWP) as an agro-waste biosorbent for the removal of noxious Congo Red (CR) dye was successfully investigated. FTIR spectroscopic analysis found multiple ...
New naphthalene derivative isolated from diaporthe sp. host to syzygium cordatum hochst.ex krauss plant

Erick, Towett K; Kiplimo, Joyce J; Matasyoh, Josphat (Journal of medicinal plants research, 2020-06-08)

Fungal endophytes are regarded as inexhaustible sources of pharmaceuticals and agrochemicals with profound antibacterial, anticancer or antifungal activities. Diaporthe sp., an endophytic fungus residing in medicinal ...

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