Natural & Applied Sciences

Natural & Applied Sciences Research Papers/Topics

Advantages of Using Biomass as Alternative Energy

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.

Concentration Of Selected Nutrients And Heavy Metals In Soils In Tea Farms And Water From Nyamasogota River, Kisii County, Kenya

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....

Collaboration Challenges Facing Information Literacy Programs In Jomo Kenyatta University Of Agriculture And Technology Lirary

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...

Geophysical Investigation Of Mbeu Iron Ore Deposit In Meru County Using Gravity Method

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...

Design And Fabrication Of A Labview Automated Computer-Based Fire Fighting System

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...

Analysis Of Proximate, Micronutrients And Determination Of Phytochemicals In Selected Medicinal Plants In Mbita-Homabay County

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...

Efficacy Of Selected Fungicides And Bio-Control Agents In The Management Of Fusarium Wilt Of Passion Fruit

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...

Multivariate Chemometric Analysis Of Radon Concentration In Geothermal Fluids From Homa Mountain, High Background Radiation Area (Hbra

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...

In Vitro Antioxidant Activities Of Methanolic Extracts Of Caesalpinia Volkensii Harms, Acacia Hockii De Wild And Vernonia Lasiopus O. Hoffm

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...

Implementation Of A Modified Procesi Algorithm To Compute Covariants Of Binary Forms Of Up To Degree Five And Their Relations

ABSTRACT In his book (Procesi,C., 2007), Claudio Procesi suggested a new algorithm for computing covariants of binary forms under the action of SL(2;C), based on an iterative computations of covariants of the simpler group U+. In Procesi book the computation was carried out only for binary forms of degree 3 and 4, but the _rst signi_cant test for the algorithm would be the computation for degree 5. In 2010 summer school in Algebra organized by ICTP in Kenya, Procesi suggested the implementati...

Determination Of Selected Trace Elements And Beta-Carotene In Fresh And Dried Indigenous Vegetables As Potential Food Supplement From Kiambu, Kenya

ABSTRACT Population growth, shortage of food due to unpredicted weather coupled with HIV/AIDS has increased nutritional deficiencies in people living in developing world. Use of micronutrients presents a low-cost strategy for achieving large reductions in death caused by malnutrition. The indigenous green leafy vegetables are of much importance among food crops as they provide adequate amounts of vitamins, immune boosting trace elements and anti-oxidants. The nutritional value of the indigeno...

Enhancing Cowpea Production Through Arbuscular Mycorrhizal Fungi Inoculation And Wide Interspecific Crosses

ABSTRACT  Cowpea is a multipurpose legume crop that serves as human food, livestock fodder, and income source and is widely produced in sub-Saharan Africa. Soil fertility and attack by insect pests and diseases are significant limitations to its production. Although farm inputs such as phosphate-rich fertilizers and pesticides can solve the mentioned constraints, they are costly for resource-poor farmers. This study aimed at determining the effect of arbuscular mycorrhizal fungi inoculation ...

Mechanical, Thermal, Diffusion And Degradation Properties Of High Density Polyethylene ‘And’ Cellulose Blends

ABSTRACT Advanced technology in petrochemical based polymers has brought many benefits to mankind. However; it has become evident that the ecosystem is being disturbed because of non-biodegradable plastic materials. The environmental impact of persistent plastic wastes is growing into a more global concern. Currently, there is considerable interest in biodegradable polymers, which can be used as alternatives to traditional plastics, thus reducing the pollution caused by plastic wastes. The ma...

Physical Activity, Dietary Practices And Nutrition Status Of Hypertensive Patients Attending Kiambu District Hospital, Kiambu County, Kenya

ABSTRACT Globally, uncontrolled hypertension is a health priority since it raises the risk for the onset of renal failure, heart disease and diabetes. Hypertension complications contribute to high rates of morbidity and mortality. Optimal blood pressure can be achieved by putting in place strategies that encourage routine physical activity engagement and intake of health diets among hypertensive patients. Patient related factors which include unhealthy dietary practices, poor nutrition statu...

Synthesis, Characterization, Bioassay And Density Functional Theory Studies Of Cationic Iron Half Sandwich Complexes Of Selected Heterofunctional Active Pharmaceutical Agents

ABSTRACT The molecular modification of purely organic drugs by the incorporation of a metal atom is an active area of research. However, there is paucity of data in the use of half sandwich organometallic fragments and in particular the cationic iron half sandwich, [ɳ5-C5H5(CO)2Fe]+, in structural modification of drug molecules. The cationic iron half sandwich organometallic fragment provides a metal centre that could participate in biochemical reactions with potentially the desirable benefi...


1996 - 2010 Of 8090 Results