Browsing Department of Basic Sciences by Title
Now showing items 1-20 of 71
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[3 + 2] Cycloaddition and Cascade Radical Reactions for the Synthesis of Trifluoromethylated Tetrahydrobenzodiazepin-3-ones
(2019-04-01)A reaction sequence involving three-component [3 + 2] cycloaddition of azomethine ylides followed by CuI catalyzed cascade trifluoromethyl radical addition and cyclization is developed for diastereoselective synthesis of ... -
[3+2] Cycloaddition-based one-pot synthesis of 3,9-diazabicyclo[4.2.1]nonane-containing scaffold
(2017-01)Three-component [3+2] cycloaddition followed by reduction and lactamization has been developed as a one-pot methodology for diastereoselective synthesis of 3,9-diazabicyclo[4.2.1]nonane-containing scaffold. -
Action and variation potential electrical signals in higher plants
(African Journal of Biological Sciences, 2021)This review evaluates the types of electrical signals (ESs) in plants, generation and propagation of various ESs, their ways of transmission within the plant body and their corresponding physiological significance. It also ... -
Adsorption of Lead (II) Ions from Aqueous Solutions Using Mangroves Roots (Rhizophora Mucronata) Charcoal-Carbon Nanotubes Nanocomposite
(2021-02)Providing clean and affordable water to meet human needs is a grand challenge of the 21st century. Worldwide, water supply struggles to keep up with the fast growing demand, which is exacerbated by population growth, global ... -
Adsorption of rhodamine b from aqueous solution using mangroves (Rhizophora mucronata) carbon nanotubes nanocomposites
(2021-03-03)The use of dyes has increased dramatically and uncontrollably in last few decades. Different types of dyes are frequently employed in plastics, paper, cosmetics, leather, and textile industries for coloring purposes. These ... -
Analysis of Copper Deposits in Maragwa Location in Tharaka Nithi County – Kenya
(American Journal of Materials Science, 2022)A primary obstacle to some developing countries like Kenya is the reliance on agriculture when they are endowed with bulk of some mineral resources like copper. The economies of some developed and developing countries ... -
Analysis of Effect of Inclined Magnetic Field on MHD Boundary Layer Flow over a Porous Exponentially Stretching Sheet Subject to Thermal Radiation
(2021-10-30)MHD flow has a wide range of industrial applications such as MHD propulsion for space exploration, cooling of nuclear reactors, electronic packages, microelectronic devices, and many more. Due to this, a study on the ... -
Arduino Uno, Ultrasonic Sensor HC-SR04 Motion Detector with Display of Distance in the LCD
(International Journal of Engineering Research & Technology (IJERT), 2020-05)- Motion detection has become one of the great areas of research in the world. Many activities are carried out in the presence of motion. One of the research focus has been the use of Arduino Uno microcontroller, Ultrasonic ... -
Assessment of Carbon Sequestration and Reflective Properties of High-Albedo C3 and C4 Plant Species: A Laboratory Approach
(Acta Scientific NUTRITIONAL HEALTH, 2024-12)This study explores the dual potential of high-albedo C3 and C4 plant species to mitigate regional climate change through carbon sequestration and reflective properties. C3 and C4 plants differ in their photosynthetic ... -
Assessment of Land Use and Land Cover Change Using GIS and Remote Sensing Techniques: A Case Study of Makueni County, Kenya
(Journal of Remote Sensing & GIS, 2016)The surface of the earth is undergoing rapid land-use/land-cover (LULC) changes due to various socioeconomic activities and natural phenomena. The main aim of this study was to gain a quantitative understanding of land use ... -
Beneficiation of Iron in Thermal-Reduced Ilmenite by Magnetic Separation
(International Journal of Science and Research (IJSR), 2015)Increasing demands for Iron in countries development, and lack of conventional reducing agents has resulted into sourcing of alternative ways of beneficiating the iron ore. This paper reports on the study that was done to ... -
Cation Exchange Capacity (CEC) determination from spectroscopy
(International Journal of Remote Sensing, 2010)Swelling soils are a major engineering problem and their detection is one of the most important site investigation undertakings in the construction industry. Methods of their detection have been developed over the years, ... -
Chemical Composition, In vitro Digestibility and Gas Production of Selected Forages Preferred by Dromedary Camels in Peri Urban Area of Isiolo Town, Kenya
(2024)Inadequate feed resources in quantity and quality during dry season is the major factor affecting milk production in lactating dromedary camels under the peri-urban production system. This study aimed to evaluate the ... -
Chemical Constituents in Extracts from Leaves of Lantana trifolia and Their In Vitro Anti-oxidative Activity
(2014)Objective To isolate, purify, and analyze the anti-oxidants from the leaves of Lantana trifolia. Methods The anti-oxidative activities of the crude extracts from liquid-liquid extraction of L. trifolia leaves were assayed ... -
A Comparative Study of Caffeine Levels in Coffee and Cocoa in Kenyan Supermarkets and Shops
(Pan-African Journal of Health and Environmental Science (AHJES), 2024)Background: Caffeine is an alkaloid belonging to the methylxanthine family. An overdose of caffeine causes the following side effects: restlessness, nervousness, excitement, insomnia, flushed face, diuresis, gastrointestinal ... -
Concentration of Rutile Using Thermally Heated Mixture of Low Grade Ilmenite Ores with Biomass from Maragwa Location in Tharaka Nithi County Kenya
(International Journal of Materials and Chemistry, 2022)The mineral data from Kenya shows several deposits of low grade titanium yet the country has been importing titanium products. Some regions of Tharaka Nithi County contain titanium minerals. These deposits have never been ... -
Copper extraction by wet chemical method
(Journal of Sustainable Mining, 2018)In many countries large deposits of copper with no locally established copper based industries occur because known methods for extraction are prohibitively expensive and unaffordable. This study reports on an affordable ... -
Copper Extraction Using Aluminum in Acidic Leachate Media
(IISTE, 2020)Copper is found in several minerals with varied elemental composition. For instance, copper minerals occur as chalcopyrite (CuFeS2), bornite (Cu5FeS4), chalcocite (Cu2S), covellite (CuS), cuprite oxide (Cu2O), and malachite ... -
Demarcating Productive Parts of Migori Greenstone Belt using Edge Detection Techniques
(Journal of Geology & Geophysics, 2021)Edge detection is one of the enhancement procedures in potential data interpretation. A number of edge detection methods can be applied in the interpretation of gravity data, the choice of the method depends on the estimated ... -
Development of Dimethylisoxazole-Attached Imidazo[1,2‑a]pyridines as Potent and Selective CBP/P300 Inhibitors
(2021)The use of epigenetic bromodomain inhibitors as anticancer therapeutics has transitioned from targeting bromodo main extraterminal domain (BET) proteins into targeting non-BET bromodomains. The two most relevant non-BET ...