Browsing Gold Collection by Issue Date
Now showing items 421-440 of 779
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SARS-CoV-2 origin, myths and diagnostic technology developments
(Egyptian Journal of Medical Human Genetics, 2022-03-04)Background After the first case of COVID-19 being announced in China in December 2019, various diagnostic technologies have been developed at unprecedented pace with the aim of providing a basis for accurate clinical ... -
Mostar Index of Cycle-Related Structures
(Journal of Chemistry, 2022-03-07)A topological index is a numerical quantity associated with the molecular structure of a chemical compound. This number remains fixed with respect to the symmetry of a molecular graph. Diverse research studies have shown ... -
The status and challenges of a modern irrigation system in Kenya: A systematic review
(Irrigation and Drainage, 2022-03-14)The modernization efforts of the irrigation subsector in Kenya have been hampered by several challenges. This review describes the status and challenges facing irrigated agriculture in Kenya. The results indicated that as ... -
Computation of the Fault-Tolerant Metric Dimension of Certain Networks
(Mathematical Problems in Engineering, 2022-03-21)*e notion of metric dimension originated in the twentieth century by the work done by Slater [1, 2] and latter independently by Harary and Melter [2]. *e initial concept was introduced to locate the intruder in any ... -
Impact of Malaria Diagnostic Technologies on the Disease Burden in the Sub-Saharan Africa
(Journal of Tropical Medicine, 2022-03-22)Worldwide, transmission of emerging and reemerging malaria infections poses a significant threat to human health in the Sub-Saharan Africa, one that can quickly overwhelm public health resources. While the disease burden ... -
Evaluation of dyeing properties of natural dyes extracted from the heartwood of Prosopis juliflora on cotton fabric
(Research Journal of Textile and Apparel, 2022-03-22)Purpose Considered as one of the most unwanted species by the International Union for Conservation of Nature, the Prosopis juliflora plant is a noxious and invasive weed. Recent studies suggest that the heartwood of the ... -
Scope of SARS-CoV-2 variants, mutations, and vaccine technologies
(The Egyptian Journal of Internal Medicine, 2022-03-26)Background The COVID-19 pandemic is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). SARS-CoV-2 is disseminated by respiratory aerosols. The virus uses the spike protein to target epithelial ... -
Scope of SARS-CoV-2 variants, mutations, and vaccine technologies
(The Egyptian Journal of Internal Medicine, 2022-03-26)Background The COVID-19 pandemic is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). SARS-CoV-2 is disseminated by respiratory aerosols. The virus uses the spike protein to target epithelial ... -
A new gnidiflavanone-flavonol dimer and other constituents from Gnidia apiculata
(Taylor and Francis, 2022-04-08)A new 3,8′′-flavanone-flavonol dimer gnidiflavanone-flavonol (1) and 10 known compounds (2–11), including four rare primula-type flavones 2–5, were isolated from the roots of Gnidia apiculata. Compounds 2–5 and 7 were ... -
A new gnidiflavanone-flavonol dimer and other constituents from Gnidia apiculata
(Taylor and Francis, 2022-04-08)A new 3,8′′-flavanone-flavonol dimer gnidiflavanone-flavonol (1) and 10 known compounds (2–11), including four rare primula-type flavones 2–5, were isolated from the roots of Gnidia apiculata. Compounds 2–5 and 7 were ... -
River flow modelling for flood prediction using artificial neural network in ungauged Perkerra catchment, Baringo County, Kenya
(Water Practice and Technology, 2022-04-11)rtificial neural network (ANN) modelling has been applied successfully in hydrology to predict future flows based on previous rainfall-runoff values. For a long time, flooding has been experienced in the surrounding areas ... -
Synthesis, Characterization, and Evaluation of the Remediation Activity of Cissus quadrangularis Zinc Oxide Nanoparticle-Activated Carbon Composite on Dieldrin in Aqueous Solution
(Journal of Nanotechnology, 2022-04-21)In this study, zinc oxide-activated carbon nanocomposite was used as the adsorbent for the remediation of dieldrin in aqueous media. Zinc oxide nanoparticles (ZNPs) were synthesized from Cissus quadrangularis (C. quadrangularis) ... -
In Vitro Antibacterial Activity of Essential Oils from Tithonia Diversifolia Leaves and Flowers Against Ralstonia Solanacearum
(European Journal of Applied Sciences, 2022-04-25)Bacterial wilt disease caused by Ralstonia solanacearum is a major constraining factor in the production of tomatoes in Kenya, leading to an overreliance on synthetic pesticides. As a result, ... -
Molecular Diversity of a Seemingly Altitude Restricted Ustilago kamerunensis Isolates in Kenya: A Pathogen of Napier Grass
(American Journal of Molecular Biology, 2022-04-27)The Central region of Kenya which is the second largest market oriented dairy zone, faces a threat in milk production. The challenge is a disease known as the napier head smut caused by Ustilago kamerunensis. This fungal ... -
Resistance of Anopheles gambiae sensu lato to Pirimiphos-methyl Insecticide in Kakamega County, Highlands of Western Kenya
(African Health Sciences, 2022-04-29)Background: Insecticide treated bed nets and Indoor residual spraying remains the principal interventional malaria control strategies. To achieve malaria disease eradication, vector control programmes that monitor insecticide ... -
Red cell distribution width as a surrogate marker of haemoglobinopathies in western Kenya
(African Journal of Laboratory Medicine, 2022-04-29)distribution width (RDW) measures anisopoikiloytosis and is readily reported by haematology analysers as a complete blood count parameter. The utility of RDW as a diagnostic marker of haemoglobinopathies in Kenya remains ... -
The burden and types of anaemia among HIV infected, ART-naive injection substance users in Kenya
(African Health Sciences, 2022-04-29)ntroduction: Illicit substance use and HIV infection cause haematological derangements. Anaemia characterized by a reduction in the quality and quantity erythrocytes is the most common disorder in both HIV-positive persons ... -
On the predictors of pro-environmental behaviors: integrating personal values and the 2-MEV among secondary school students in Tanzania
(Heliyon, 2022-05-03)The role of personal values in understanding pro-environmental attitudes and behaviors has received considerable attention from psychological researchers. However, little is known about the mutual interaction of personal ... -
Insecticide resistant Anopheles gambiae have enhanced longevity but reduced reproductive fitness and a longer first gonotrophic cycle
(scientific reports, 2022-05-23)Widespread insecticide resistance in African malaria vectors raises concerns over the potential to compromise malaria vector control interventions. Understanding the evolution of resistance mechanisms, and whether the ... -
ACADEMIC OUTCOMES OF HOMESCHOOLED VERSUS CONVENTIONALLY SCHOOLED CHILDREN PURSUING THE ACCELERATED CHRISTIAN EDUCATION CURRICULUM IN KENYA
(Problems of Education in the 21st Century, 2022-06)In recent times, the Kenyan education sector has experienced increased cases of students' indiscipline in schools. However, the potential of homeschooling as a possible solution to such indiscipline has not been explored. ...