Natural and Environmental Sciences Research Papers/Topics

EXPLORING THE IMPACT OF NATURAL DISASTERS ON ACADEMIC PERFORMANCE: A QUALITATIVE STUDY OF GRADE 11 STUDENTS OF TCCSTFI

The primary objective of this study is to examine the effects of natural disasters on students’ educational attainment. Additionally, it aims to explore strategies for mitigating the challenges that hinder learning and provide solutions to help students recover from possible traumatic experiences and resume their interrupted education following unpredictable calamities.

Morphometric study of Senna didymobotrya (Fresen.) H. S. Irwin and Barneby in Kenya

Abstract/Overview Herbal medicine has been used for many years and it remains widespread in developing countries while the use of complementary alternative medicine is increasing rapidly in developed countries. Senna didymobotrya is important for its medicinal use among many communities to treat a wide range of ailments. The study examines the patterns of morphological variation and phenetic relationships among 39 populations of S.didymobotrya in Kenya using17 quantitative and 17 qualitat...

Disappearing medicinal plants in mt. kenya forests, kenya: a case study of east african green heart (Warburgia ugandensis sprague)

Abstract Natural disturbances and human activities are significantly affecting indigenous trees species in forests. Warburgia ugandensis is a plant highly valued for its medicinal properties, timber and fuel among other uses. Many rural communities use it as a remedy for a number of ailments. Investigations into the value of its chemical content reveal that it has antibiotic, antifungal, anti inflammatory and antiseptic effects. W. ugandensis has been rated as the second highest medicinal pl...

Afromontane avian assemblages and land use in the Bale Mountains of Ethiopia : patterns, processes and conservation implications

Abstract: Although protected areas have been used as principal conservation tools, most of them are suffering from human-induced threats. Consequently, a good understanding of such human-driven threats on biodiversity and identifying early warning systems for habitat change in protected areas is necessary for effective conservation of natural resources. To examine the impact of human disturbance on avifaunal assemblages and to assess the potential application of birds as bioindicators of for...

The Impact of Refugees on the Natural Resource Environment in Africa: A case study of Kenya

Abstract: Many refugee hosting countries in Sub-Saharan Africa experience long-term environmental impacts. The presence of refugee settlements in Northern Kenya has been associated with the environmental and natural resource degradation. This research focused on the impact of refugees on the woodland, water and land resources in Kenya's refugee affected areas, notably Kakuma and Dadaab. The study methodology included a review of the existing literature (i.e. secondary data sources) on the en...

Impacts of expansion of agriculture and land use change on flow regime of Thiba river, Kenya

Abstract: Soil and Water Assessment Tool (SWAT) was used to model the impacts of land cover changes on stream flow regime in the Thiba River basin a sub-catchment of Tana River Basin covering a surface area of 1648 km2 in central region of Kenya. The basin is characterized by intensive agricultural activities including the largest rice irrigation scheme in Kenya. A study was undertaken to test the capability of the model in predicting stream flow response under changing land use conditions i...

Suitability of Athi River water for irrigation within Athi River town and its environs

Abstract: The main aim of this study was to assess the suitability of the Athi River water for irrigation in Athi River area and its environs. The study area was within Athi River and Muthwani ward within Mavoko Constituency and in Machakos County, Kenya. Seven sampling points were selected along the study transect (about 8 km) and sampling was done once every week from 21 st January to 6 th March 2015 (dry season). The water samples collected were analyzed for selected physico-chemical and ...

Influence of light pollution and biodiversity awareness on hawkmoth (lepidoptera: sphingidae) diversity and abundance in selected sites in Kenya

Abstract: Light pollution is a key biodiversity threat and is defined as one of the global environmental problems threatening key species to extinction and posing a major challenge to biodiversity conservation. The absence of stringent law, good practice and nonexistent environmental standards on light pollution has been a major drawback to management of its effects on biodiversity. This study sought to establish the influence of light pollution and biodiversity awareness on hawk moth divers...

BIOLOGICAL AND PHYSICOCHEMICAL WATER QUALITY PROFILE OF LAKE ADDELE, EASTERN HARARGHE DISTRICT OROMIYA, ETHIOPIA

Abstract: Freshwater ecosystems harbour a considerable proportion of Earth’s biodiversity, even though they cover < 2 % of the land surface. Lakes are one of humanity’s most important resources,where they are viewed as highly productive biological systems.The availability of good quality water is the major factor for preventing diseases and improving quality of life. In the present study the physicochemical parameters and the occurrence of three heavy metals in the tissues of fish specim...

CLIMATE VARIABILITY, IMPACTS ON MAIZE (Zea mays L.) YIELD, AND SMALL HOLDER FARMERS’ PERCEPTION AND ADAPTATION STRATEGIES IN WEST BADAWACHO DISTRICT OF HADIYA ZONE, SOUTHERN ETHIOPIA

Abstract: Climate variability affects crop productivity at both global and local scales, and adaptation of agricultural practices against this variability helps to translate perception of the farmers to decision-making process. This study was initiated to analyze climate variability, examine its effect on maize productivity, and assess perception and adaptation strategies of smallholder farmers to climate variability in West Badawacho District. Climate and crop data from 2000-2019 were colle...

IMPACT OF CLIMATE VARIABILITY ON HOUSEHOLD FOOD SECURITY IN CHIRO DISTRICT, WEST HARARGHE ZONE, OROMIA REGION, ETHIOPIA

Abstract: Climate variability is depleting assets and adversely affecting food security of smallholders of rainfall dependent livelihoods, and it affects crop production and price due toincrease in average temperature and rainfall variability. This study was undertaken in Chiro district to analyze impact of climate variability on household food security in Chiro district. Data on rainfall/temperature and crop production were obtained from National Meteorological Agency and Chiro District Agr...

Green Mediated Ferrofluid as a Probable biofuel for Sustainable Aviation Fuel : Review, Practical Evaluation and Prospective Applications

The agenda of the United Nations Sustainable Development Goal and the international Energy Agency tailored towards addressing the global crisis  of climate change mitigation (depletion of the Ozone layer is of great concern due to the adverse effect of carbon emission activities which has proven to be pungent, lethal, non-degradable with zero socio-economic relevance). Hence,  this research study under a feasibility check investigated the possibility of synthesizing green ferrofluid from pl...

Green Mediated Ferrofluid as a Probable biofuel for Sustainable Aviation Fuel (SAF), Review, Practical Evaluation and Prospective Applications

The agenda of the United Nations Sustainable Development Goal and the international Energy Agency tailored towards addressing the global crisis  of climate change mitigation (depletion of the Ozone layer is of great concern due to the adverse effect of carbon emission activities which has proven to be pungent, lethal, non-degradable with zero socio-economic relevance). Hence,  this research study under a feasibility check investigated the possibility of synthesizing green ferrofluid from pl...

Assessment Of Household Solid Waste Management In Makina Informal Settlements, Nairobi Kenya

The purpose of this study was to assess the household management of domestic solid waste in the Makina area informal settlements, Kibera division of Nairobi city. This is because of the increasing sites of unattended solid wastes in its public places. The objectives of the study were: To establish the types of domestic solid waste generated in Makina area; to evaluate the effectiveness of the solid waste management at the household level and to examine the role-played by stakeholders in d...

Environmental Sustainability In Informal Settlement Upgrading Projects In Nairobi, Mombasa And Kisumu Cities In Kenya

The phenomenal growth of urban centres in developing countries makes cities important sites for engaging with environmental issues. The prevalence of informal settlements in cities and its implication on environmental sustainability has become a growing concern. Metabolic processes of these spatial units significantly shape the urban ecological system and define quality of life in cities. However, the significance of this space in the environmental sustainability function has not been ad...


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