• Warburgia Ugandensis: A Review of Compounds and Bioactivity 

  Opiyo, Sylvia A. (2023-07)

  Warburgia species (Canellaceae) are traditionally used to treat a wide range of illnesses including stomach ache, diarrhea, abdominal pains, toothache, oral thrush, venereal diseases, cold and cough, fever, muscle pains, ...
• A Review of Chemical Compounds and Bioactivity of Conyza Species 

  Opiyo, Sylvia A. (2023-06)

  A large proportion of the African population's primary healthcare requirements are still mostly met by traditional medicine. Previous studies have demonstrated the potential of plant extracts disease management. Conyza ...
• Chemical Composition And Biological Activity Of Extracts From Conyza Species 

  Opiyo, Sylvia A.; Njoroge, Peter W.; Kuria, Kennedy M. (iosrjournals.org, 2023-04)

  The genus Conyza (Asteraceae) comprises about 50 species and found in the tropical and warm regions. Extracts from Conyza species have numerous pharmacological applications. The aim of this study was review the chemical ...
• Dietary practices, habits and physical activity levels of the Swahili community, Kenya in relation to obesity and chronic diseases of lifestyle 

  Ndungi, F. N.; Tuitoek, Prisca J.; Aboud, A. (2018-11)

  Chronic diseases of lifestyle like diabetes mellitus and hypertension appear at greater rates in populations which consumed high fat, high calorie diets and engaged in low or no physical activity. Physical inactivity and ...
• Food insecurity, a perceived barrier to healthy eating in the Lake Victoria Region, Kenya: Findings from a qualitative study 

  Korir, E. C.; Tuitoek, Prisca J.; Marais, D. (2022-09)

  Consumption of poor-quality diets was noted as prevalent in the Lake Victoria Region, Kenya. As a strategy to communicate desirable change and promote healthy eating in the region, a 30-member panel of policymakers and ...
• Perception of proposed preliminary food-based dietary guidelines for Lake Victoria region of Kenya: findings from a qualitative study among adult community members 

  Korir, E. C.; Tuitoek, Prisca J.; Marais, D. (2022-06)

  Background: Diets in the Lake Victoria region of Kenya have been described as monotonous, consisting chiefly of starchy staple foods, accompanied by green vegetables and oil. To promote healthy eating in the region, 11 ...
• A Review of Fatty Acid Components in Avocado 

  Opiyo, Sylvia A.; Mugendi, Beatrice J.; Njoroge, Peter W.; Wanjiru, Samuel N. (2023-03)

  Avocado is one of the world's most economically significant tropical fruit crops. In recent years, there has been a lot of interest in avocado as a natural functional food in due to its excellent nutritional value and ...
• Chemical Composition of Essential Oils from Ocimum Kilimandscharicum: A Review. 

  Opiyo, Sylvia A. (IOSR Journal of Applied Chemistry (IOSR-JAC).Volume 15, Issue 11 Ser. I (November 2022), PP 05-11, 2022)

  Traditional medicine plays an important role in disease especially in developing countries. The essential oils of Ocimum species showed anti-oxidant, anti-inflammatory, anti-cancer and insecticidal activities. Essential ...
• Hepatitis E Virus Prevalence Amongst Blood Donors in Kenya 

  Mutai, A.; Songok, E.; Muna, Kennedy K.; Langat, B.; Boriang, J.; Andonov, A. (2022-10-01)

  Introduction: Hepatitis E (HEV) is an emerging cause of viral hepatitis mainly transmitted through the fecal-oral and parenteral routes. It has greatly affected populations in many parts of Kenya due to declined sanitation ...
• Molecular characterisation of Duffy (FY) red blood cell variants among voluntary blood donors at the National Blood Grouping Testing Laboratory, Kenya 

  Githiomi, R. N.; Muna, Kennedy K.; Mbaruk, S. A.; Yegon, C. K.; Chege, E.; Obiero, C.; Lopez, G. H.; Roulis, E. V.; Hyland, C. A.; Flower, R. L. (2022-07)

  A variant is an alternative nucleotide located at a specific region of a gene. 48 genes encode for human red cell blood group systems. Variants within these genes encode for alleles, which can be highly polymorphic. The ...
• Facile Removal of Phenol from Aqueous Solution Using Modulated Cornstarch Impregnated With Triethanolamine as Adsorbent: Sorption Isotherms and Kinetics 

  Bosuben, Haron; Njoroge, Peter W.; Opiyo, Sylvia A.; Mwangi, I. W. (2022-08)

  Background: The sources of phenolics pollutants in water are mainly pharmaceutical and chemical industries. The compounds are carcinogenic, cytotoxic, mutagenic and teratogenic even at modest concentrations. These health ...
• Effects of Land Use and Land Cover Change on Potential Ecosystem Service Value in Mathioya Watershed, Murang’a County, Kenya 

  Oginga, M. O.; Kaluli, J. W.; Mwangi, Benson; Raude, J. M. (2022-09)

  Wetlands in Mathioya watershed are declining due to continued alterations caused by human and natural factors. This study assessed the effects of spatiotemporal changes in Land Use and Land Cover (LULC), on potential ...
• Effects of Zeolite X on Dissipation of Hexazinone from Agricultural Waste Waters in Western Kenya 

  Agoro, D. J.; Kowenje, C. O.; Lalah, J. O.; Osewe, Elly T.; Ogunah, J. A. (2013-10)

  Dissipation of hexazinone in Zeolite X treated wastewater followed pseudo first-order kinetics giving a calculated half-life of 41 days compared to a half-life of 144 days in untreated wastewater. The herbicide degraded ...
• Effects of zeolites X and Y on the degradation of malathion in water 

  Ogunah, J. A.; Kowenje, C. O.; Osewe, Elly T.; Lalah, J. O.; Jaoko, D. A.; Koigi, R. N. (Science Publishing Group, 2013-04)

  The inclusion of both zeolites X and zeolite Y significantly affected the dissipation of malathion in water. In the fresh water, malathion degradation followed a pseudo-first order kinetics with concomitant half-life ...
• Effects of Faujasite X and Y Zeolites on the 1,1,1-Trichloro-2,2? bis(p-chlorophenyl)ethane (DDT) Degradation during Water Purification 

  Kowenje, C. O.; Osewe, Elly T.; Lalah, J. O. (Science Publishing Group, 2013-06)

  The ability of zeolites to abstract and denature organochloride pesticides finds application in water purification practices. In this study, activated faujasite X and Y zeolites were separately exposed to 1, 2 and 4 ppm ...
• Effects of Different Types of Zeolites on the Degradation Kinetics of Malathion Pesticide in Water 

  Osewe, Elly T.; Shikuku, V.; Pereira, C. A.; Otieno, S. O.; Okoyo, A. (2021-06)

  The study examined the effects of selected types of zeolites as an environmentally benign and friendly way to degrade, S-1, 2-bis (ethoxycarbonyl) ethyl O, O-dimethylphosphorodithioate (malathion), used as a model pesticide, ...
• The global spread of misinformation on spiders 

  Mammola, S. et al.; Warui, Charles M. (ScienceDirect, 2022-08-22)

  In the internet era, the digital architecture that keeps us connected and informed may also amplify the spread of misinformation. This problem is gaining global attention, as evidence accumulates that misinformation may ...
• Stored Grains Protection Activity of Ocimum Suave Extracts and Compounds on Larger Grain Borer 

  Opiyo, Sylvia A. (IOSR Journal of Biotechnology and Biochemistry (IOSR-JBB) Volume 8, Issue 4 (Jul. – Aug. 2022), PP 05-10, 2022)

  Post-harvest pests cause serious losses to agricultural products in Africa. The pests consist mostly of beetles or moths and infest the grains at the crop stage or during the storage. Larger grain borer, Prostephanus truncatus ...
• Nestng success of Sharpe’s Longclaw (Macronyx sharpei Jackson, 1904) around the grasslands of lake Ol’bolossat Nyandarua, Kenya 

  Hamisi, Ann R.; Warui, Charles M.; Njoroge, Peter. (Journal of Threatened Taxa 14(1): 20461–20468, 2022)

  Sharpe’s Longclaw Macronyx sharpei is an endangered Kenyan endemic bird restricted to high-alttude grasslands with long tussocks. The species occurs on the grasslands surrounding Lake Ol’Bolossat in Nyandarua, Kenya, an ...
• Effect of carbonization on the surface and influence on heavy metal removal by water hyacinth stem-based carbon 

  Tinega, Joseph N.; Warui, Charles M. (Management of Environmental Quality: An International Journal Vol. 33 No. 3, 2022 pp. 573-585, 2022)

  Purpose – The aim of this study is to examine the effect of carbonization on the surface and its influence on heavy metal removal by water hyacinth based carbon. Design/methodology/approach – Dried water hyacinth stem ...

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