ABSTRACT The concept of cycle index was first discovered by Howard Redfield in 1927. The cycle index formulas of various group actions have been computed since then by various authors. The formulas have been used to count graphs in mathematics and chemical compounds in chemistry. Therefore cycle index is a very useful tool in enumeration. It is widely applied in other fields of study like biology and jewelry industry. The cycle index of the symmetric group acting on ordered pairs, triples an...
ABSTRACT Avocado (Persea americana Mill) is a fruit commercially grown worldwide. Its production is affected by anthracnose disease which causes huge loss of avocado fruits both at farm level and in storage. Management of anthracnose disease worldwide has been mainly through use of fungicides. In Kenya, farmers use fungicides such as bayleton, milraz and Copper oxychloride which are not registered for controlling anthracnose in avocado. Despite this, the disease has continued to cause signif...
ABSTRACT GeoGebra is a free computer application software that provides an algebra view, geometry view, spreadsheet view and an input bar. This study looked at if and how this resource can be used to enhance the teaching of Geometry in secondary schools in Kajiado County in Kenya. The objectives of this study were to assess the applicability of GeoGebra in the teaching of mathematics in secondary schools in Kenya. The relationship in performance of students taught with the help of this innov...
ABSTRACT The water quality used for irrigation is essential for the yield and quantity of crops, maintenance of soil productivity, and protection of the environment. Irrigation water quality has a profound effect on soil and plant health. A major concern with water used for irrigation is decreased crop yields and land degradation as a result of poor water and soil management which lead to irrigation induced problems, such as salinity and water-logging capacity. The Rusurirwamujyinga rice irri...
Abstract Background : Acne vulgaris is a common chronic inflammatory disease of the skin. Vitamin D plays an important role in the immune system, and its deficiency has been implicated in various skin diseases, including atopic dermatitis and psoriasis. Objectives: The aim of this study wasto evaluate the serum 25 hydoxy vitamin D levels among patients with acne vulgaris . Methods: This study was a cross sectional case control hospital base study performed in Khartoum state at military Hospit...
Abstract The objectives of this study were both to develop, optimize and validate spectrophotometric and chromatographic methods for the analysis of amlodipine besylate and esomeprazole magnesium in pharmaceutical formulations in presence of their degradation products and to study their stability under various conditions. The spectrophotometric method for amlodipine was based on either its solubility enhancement using different hydrotropic agents including potassium acetate, ammonium acetate...
Abstract The focus of the researchis to investigate the advantages of biomass as an alternative energysource to prevent or reduce the additional emissions of greenhouse gases; that is released from the conventional fuels combustion. A studyalso put a spot of light on the potentialof different sources which can produce good amount of biomass as fuelfeed stock.It is clear that biomass can be used as an alternative source of energy if the mentioned recommendations are done.
ABSTRACT The issue of water contamination and quality dilapidation in Kenya is more and more becoming a menace to the natural water resources due to modern methods of farming and industrialization which have resulted in water pollution especially in rivers. River Nyamasogota provides water for growing crops and for domestic purposes. The river passes through the areas that have many tea farms where fertilizers are heavily used and hence polluted by inorganic, organic and microbial substances....
ABSTRACT This research project was to investigate the information literacy collaboration challenges in JKUAT library. Information literacy (IL) is a critical pillar in all libraries. It ensures optimal usage of all forms of information resources acquired. It demands collaboration between the library, teaching departments, administrators as well as users to achieve its purpose. The challenge is that this IL partnership is often missing in many information centers. This investigation was t...
ABSTRACT Gravity survey was used to detect metallic bearing rocks and dense bodies of rocks within host formations in Mbeu area of Tigania. From the study, there is a clear indication of the presence of iron ore in the region. The ground based gravimeter was used to precisely measure variation in the gravity fields at different points. A total of 86 gravity stations were surveyed. The data obtained was corrected for drift, latitude, Free Air and Bouguer corrections from where the Free Ai...
ABSTRACT Despite many building have firefighting systems installed in them; many people are still losing their lives and property due to fire accidents. The cost of installation of these systems is usually high and most of them are operated manually. They are often located inside the building which may not be accessible during fire accidents. In this research, an automatic cost effective prototype of a fire fighting system for the detection and control of fire has been designed and fabricated...
ABSTRACT About 80% of low income earners in developing countries rely on traditional medicine for their primary health care, hence medicinal plants play an important role in the society. Lannea schweinfurthii, Rhus natalensis and Euclea divinorum, has been extensively used in treating severe headache, dermatological, gastrointestinal, gynaecological, abdominal pains, female sterility among others in several parts of East Africa. In addition, many communities in Kenya including Mbita - Homabay...
ABSTRACT Passion fruit (Passiflora edulis Sims) is an important fruit crop in Kenya for both local and export market. Production of the crop is constrained by many diseases. Fusarium wilt caused by Fusarium oxysporum f. sp. passiflorae is one of the major disease of purple passion fruit. Yield losses due to wilt have been estimated up to 80 %. Farmers lack appropriate management strategies for the disease and the use of bio-control agents to manage the disease has not been explored. The objec...
ABSTRACT The activity concentration of radon in geothermal waters from Homa mountain region of south-western Kenya has been measured. Homa mountain is one of the regions in Kenya with elevated background radiation. This region is covered with geothermal grass and has some cold and hot springs. The activity concentration of radon in spring waters, river waters and pond waters from (i) geothermally active HBRA (ii) non-geothermally active HBRA and (iii) non-geothermally active non-HBRA areas of...
ABSTRACT Antioxidants are chemical substances that inhibit oxidation (oxidation is a chemical reaction that can produce free radicals, leading to a chain reaction that may damage cells or other molecules) Free radicals are reactive oxygen species and reactive nitrogen species generated by our bodies naturally during normal metabolic functions. If free radicals overwhelm the body ability to regulate them, a condition known as oxidative stress ensues. Oxidative stress leads to the destruction o...