Natural & Applied Sciences

Research Papers/Topics Natural & Applied Sciences

Protective And Antioxidant Properties Of “Aqueous Anti-Ulcer Drug “Aqaud”, Against Aspirin-Induced Gastric Ulcers In Rats

ABSTRACT The protective and antioxidant properties of Aqueous Anti-ulcer Drug (AQAUD) against Aspirin-induced gastric ulcers in albino rats were investigated. In this study, thirty male albino rats were divided into five groups. Rats in group I served as normal control and received food and water. Animals in group II received food and water in addition to aspirin 400mg/kg.b.wt orally on the 14th day. Rats in groups III, IV and V received “AQAUD” 250mg/kg.b.wt, 500mg/kg.b.wt and Omeprazol...

Diffusivity Of Chloride And Sulphate Ions Into Mortar Cubes Made Using Ordinary Portland And Portland Pozzolana Cements

ABSTRACT Cement is subject to degradation by aggressive media found in the environment. Durability tests are therefore necessary for any cementitious material in a given aggressive environment. This study investigated chloride and sulphate diffusivity in mortar made from selected Kenyan cements. The test cements included three brands of Ordinary Portland Cements (OPC) and three brands of Portland Pozzolana Cements (PPC). The test cements were used to make mortar prisms at different water / ce...

Optimization Of Acid Pretreatment Procedures For Oil Palm Trunk Fibers Used In Production Of Sugar

The Oil Palm Trunk (OPT) fiber was pretreated, using Tetraoxosulphate (vi) acid H2SO4, Hydrochloric acid HCl, and Trioxonitrate (v) acid HNO3, at temperature of 80 o C, and residence time varying from 15 to 45 minutes, and acid concentration between 1-2.5%. It was found that the optimum acid concentration and residence time for highest sugar yield, was 1% w/w and 30minutes for the three acids investigated. Hydrolysis with HCl gave the highest sugar yield. The effect of additives such as 0.5M ...

Online Hotel Booking System

ABSTRACT The study Online Hotel Reservation System is the design of an electronically driven system that will enable travelers to book hotel from anywhere in the world at their convenience. This is prompted by the fact that the cost of booking a hotel accommodation is becoming increasingly high with low information of where one can get a good hotel. The main objective in this study is to design a website that is user friendly, has a secured payment system and can provide information to custo...

Nutritional Quality And Physico-Chemical Properties Of The Seed And Oil Of Chinese Fan Palm

ABSTRACT The oil of the raw seeds of Livistona chinensis (Chinese fan palm) was extracted and its physico-chemical properties evaluated. The proximate composition and the anti-nutrients present in the pulp, raw seed, blanched (4, 6, and 8 minutes), cooked (20, 40 and 60 minutes) and the roasted (1100C for 5, 10 and 15 minutes) seeds were determined. An acute toxicity study was also carried out on the seed during which albino rats were differently fed the raw and also the cooked and roasted s...

Evaluation Of Regeneration Response In Tissue Culture Of Selected Groundnut (Arachis Hypogaea L.) Varieties Adapted To Eastern And Southern Africa

ABSTRACT Cotyledon explants from mature groundnut seeds (Arachis hypogaea L.) adapted to eastern and southern Africa, were optimized to obtain adventitious shoot buds with high frequencies. This was done using commercial bleach (jik, active ingredient sodium hypochlorite (3.5% v/v NaOCl) at different concentrations and exposure time as compared to 0.1% mercuric chloride. Results showed that 0.525% NaOCl and 1.050% NaOCl concentrations within an exposure time of 10-20 minutes were the optimum ...

Institutional, Cultural And Socio-Economic Barriers To Women’s Contraceptive Use In Butula Sub-County, Busia County, Kenya

ABSTRACT The government of Kenya has put in place various strategies and policies to increase the uptake of family planning services and also increase the mean age at first marriage as a step towards reducing the fertility rate. This is the cornerstone of reducing poverty and improving the country’s Gross Domestic Product (GDP). Despite these policy measures, the Total Fertility Rates (TFR) of some regions still remains high above the country’s rate of 3.9, according to the Kenya Demogra...

Edu Frontiers 106 PAGES (18908 WORDS) Geography Thesis
Characterization Of The Genetic Diversity And Pathogenecity Of Colletotrichum Kahawae, Using Random Amplified Polymorphic Dna (Rapd) Analysis.

ABSTRACT Coffee is a small shrub which is a source of a stimulating beverage. It ranks as one of the world's major commodity crops and is the major export product of many countries including Kenya. Economic production of Arabica coffee in Kenya is greatly hindered by the Coffee Berry Disease (CBD) caused by Colletotrichum kahawae. Since the release of the resistant Ruiru 11 in 1985, efforts have been devoted to the improvement of the genetic base of resistance, but this has faced the problem ...

Characterization of flavonoids from candidate striga weed controlling food legumes; cicer arietinum l. And vigna radiata l.

ABSTRACT In Africa, intercropping of some legumes with cereal crops has been found to cause remarkable reduction of Striga infestation and improved production of cereal crop. Desmodium uncinatum controls Striga infestation in intercrop with cereals through an allelopathic mechanism, which involves post-germination growth inhibitors exuded from the roots. Allelopathy is a natural and environmentally friendly technique, which has a potential to be a new approach for weed control. A standardize...

Edu Frontiers 107 PAGES (17047 WORDS) Chemistry Thesis
Comparative Investigation On Structural And Optical Properties Of A Yellow-Emitting Zn 3(Vo4)2: Ce3+ Phosphor For Applications In White Light Emitting Devices

ABSTRACT White light emitting diodes (wLEDs) is considered as the next generation of white light sources after fluorescent lamps due to their merits of long term operational lifetime, high quantum efficiency, energy savings, compactness and environmental friendliness. Presently, cerium-doped yttrium aluminium garnet, Y3Al5O12:Ce3+ phosphor is used to convert blue light emissions from InGaN to white light. However, the emitted white light has low color rendering property due to weak red emiss...

Edu Frontiers 100 PAGES (16511 WORDS) Physics Thesis
Investigation Of Geo-Environmental Hazards And Reclamation Of Abandoned Borrow Pits, South - Eastern, Nigeria

ABSTRACT Geo-environmental hazards associated with active and abandoned borrow pits are on the increase following rising trend in road construction. This situation presents a major challenge to Citizens, Environmentalists and Governments. Several highway failures have been directly linked to the action of erosion initiated by active or abandoned borrow pits situated close to roads. This study investigated environmental hazards and reclamation requirements associated with abandoned borrow pit...

Interpretation Of Aeromagnetic And Landsatetm+ Data Over Part Of The Younger Granite Complex, Nigeria: Implication For Geothermal Exploration

ABSTRACT Structural interpretation of Younger Granite complex of northern Nigeria using aeromagnetic and Landsat imagery was carried out to determine the depth to the magnetic basement, delineate the basement morphology and relief, delineate the structural features associated with the basin and to infer the influence of such structures on mineralization in the study area. Also, this study is aimed at determining the geothermal potentials of the area. The application of directional edge enhan...

The Potential Of Bioactive Protectants Of Maize Grains Against Sitophilus Zeamais In Western Kenya

ABSTRACT In African tropical zones, cereals are kept as grains or flour in storage structures and constitute important source of income for farmers. Protecting stored product in this case is an emergency to ensure food security for people living in these areas of deficiency where agriculture is not highly productive. Some of the pursued measures include physical, traditional, and biological methods; and application of synthetic pesticides. The above techniques have some problems including con...

Extended Spectrum Beta-Lactamaseproducing Bacteria: Molecular Studies And Effects Of Medicinal Plants

ABSTRACT Molecular studies of ESβL-producing bacteria isolated from clinical samples was determined as well as the effects of medicinal plants on the isolates. The study was conducted from September 2013 to September 2015. A total of 480 bacterial isolates (250 from urine, 110 from wound swab & 120 from HVS & US) were used. The knowledge, attitude and practices (KAP) of health workers in Imo State towards multiple antibiotic resistant bacterial isolates and extended spectrum beta-lactamase ...

Mathematical Modeling Of Tuberculosis Dynamics With Hygiene Consciousness As A Control Strategy

ABSTRACT Tuberculosis, an air-borne infectious disease, remains a major threat to public health in Kenya. In this study we derived a system of non-linear ordinary differential equations from SLICR mathematical model of TB to study the effects of hygiene consciousness as a control strategy against TB in Kenya. The effective basic reproduction number (R0) of the model was determined by the next generation matrix approach. We established and analysed the equilibrium points. Using the Routh-Hurw...


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