Browsing by Author "Shivoga, William"
Now showing items 1-9 of 9
-
Age, Gender and Verbal Ability as Predictors of Students’ Achievement in Biology
Saheed, Ayodeji; Nzabalirwa, Wenceslas; Shivoga, William (International Journal of Studies in Education and Science, 2021-04)This study examines the relationship between age, gender, verbal ability and achievement in biology among senior secondary school students within Ibadan metropolis, Oyo State, Nigeria. The study adopted an ex-post factor ... -
Assessment of Available Phosphates and Nitrates Levels in Water and Sediments of River Isiukhu, Kenya
Oremo, Jane; Orata, Francis; Owino, Joseph; Shivoga, William (Applied Ecology and Environmental Sciences, 2, 2020-05-05)Surface water contamination has become one of the main environmental issues of concern and a challenge to the world population, especially in the developing world, that face potable or usable water security. In this study ... -
Assessment of heavy metals in benthic macroinvertebrates, water and sediments in River Isiukhu, Kenya
Oremo, Jane; Orata, Francis; Owino, Joseph; Shivoga, William (Environmental Monitoring and Assessment, 2019-10-16)A major ecological challenge facing freshwater resources such as rivers is the influx of chemical contaminants from anthropogenic sources. A report on the levels of heavy metals, namely Zn, Cu, Cr, Cd and Pb in benthic ... -
Assessment of heavy metals in benthic macroinvertebrates, water and sediments in River Isiukhu, Kenya
Oremo, Jane; Orata, Francis; Owino, Joseph; Shivoga, William (Environmental Monitoring and Assessme, 2019-10-16)A major ecological challenge facing freshwater resources such as rivers is the influx of chemical contaminants from anthropogenic sources. A report on the levels of heavy metals, namely Zn, Cu, Cr, Cd and Pb in benthic ... -
Faecal pollution and solar purification of community water sources within Lake Naivasha basin, Kenya
Shivoga, William (MMUST, 2015) -
Influence of land use/cover on water quality in the River Sironko catchment area, Eastern Uganda
Turyahabwe, Remigio; Mulinya, Caroline; Shivoga, William (IOSR Journal of Environmental Science Toxicology and Food Technology, 2020-08)Ten sampling stations located on RiverSironko catchment area were used to assess the contribution of selected land uses to the nutrients and Physico-chemical water quality levels of river Sironko for a period of six months ... -
Innovative collaborative instructional strategies: it’s effect on secondary school students’ achievement in biology as moderated by verbal ability
Adejimi, Saheed; Nzabalirwa, Wenceslas; Shivoga, William (international journal on math, science and technology education, 2021-06-21)Education is changing rapidly. Schools are gradually shifting away from the traditional mode of instruction and toward a more active model of learning, in which students are collaborating on projects in small groups and ... -
Managing the invasion of guava trees to enhance carbon storage in tropical forests
Adhiambo, Rael; Muyekho, Francis; Creedbc, Irena F.; Enanga, Eric; Shivoga, William; Trick, Charles G.; Obiri, John (Science Direct, 2019-01-15)Tropical forests account for a substantial percentage of the world’s carbon stocks, but the consequences to carbon storage of the rapid invasiveness of the guava tree in these forests is not known. Two different forest ... -
Spatial Modeling of Sorghum (Sorghum bicolor) growing areas in Kenyan Arid and Semi-Arid Lands
Kigen, Charles; Dennis, M W; Ochieno, Dennis; Muoma, John; Shivoga, William; Konje, Martha; Onyando, Zedekiah Odira; Soi, Bernard Cheruiyot; Makindi, Stanley Maingi; Kisoyan, Philip M; Mironga, John Momanyi (Elixir Remote Sensing, 2014-01-10)Sorghum (Sorghum bicolor) is an important African cereal crop and is listed among Africa’s lost crops but is now gaining popularity as other cereals are declining in production due to climatic change. To promote ...