Natural & Applied Sciences

Research Papers/Topics in Natural & Applied Sciences

Phytochemical Analysis and Antimicrobial Effect of Calotropis procera (Sodom apple) Leaves Extract on Some Bacteria Isolated from Spoilt Nunu Milk.

ABSTRACTThis study was carried to with the aim of determining the antibacterial effect of Calotropis procera against some bacteria isolated spoilt nunu. Bacteria isolated from spoilt nunu were identified based on their Gram characteristics, morphology and biochemical characteristics. Calotropis procera was extracted using ethanol, methanol and distilled water. The ethanol and methanol extracts showed the presence of Saponins, Steroids, Terpenoids, Flavonoids, Tannins, Alkaloids, and Cardiac g...

Evaluation of room temperature Tribocorrosion behaviour of Al-4.5Cu/SiC Particulate Composite in Natural Sea Water

Room  temperature  tribocorrosion behaviour  of  Al-4.5%Cu/SiC particulate composite  was  evaluated against  stainless  steel  ball  in natural  sea  water.  Ab-initio,  the          Al-4.5%Cu  was  reinforced  with  5,10,15  and  20  %  SiC  reinforcements  to  produce  the Al-4.5%Cu/SiC  particulate  composite  by  st...

GEOLOGY AND MAGNETIC SUSCEPTIBILITY PROPERTIES OF IPOLE LITHOLOGIES IN EXPLORING FOR DIAMONDIFEROUS KIMBERLITE IN IPOLE SIKONGE DISTRICT, TABORA REGION

ABSTRACT This project report is the result of the work done at Ipole area, Sikonge District from July to September 2008. The main objectives of this project was to identify the rock types present at Ipole area using rock magnetic properties and to determine the presence of Diamondiferous Kimberlite in Ipole lithologies.The following methods were used to accomplish the task; Heavy Mineral Sampling in Streams sediments, Loam and Auger sampling, Airborne magnetic survey, Geographic Informatio...

Determinants of Information Security Awareness among Employees of Capital Market Registrars in Lagos, Nigeria: An Empirical Study

Abstract - The purpose of the study is to examine the determinants of information security awareness (ISA) among employees of Capital Market Registrars (CMRs) in Lagos, Nigeria based on established factors from the existing literatures on ISA. The main objectives of the study are; to determine the level of information security awareness among CMRs’ employees and to identify the components that influence information security awareness. This study utilised a survey design. Stratified ra...

Exploitation and Development of Non-metallic mineral deposits of Nigeria

In this academic term paper, the industrial minerals in Nigeria were evaluated. The economic potentials were determined. Also, the level of the development and the industrial uses of these minerals were evaluated. It will interest you to know that Nigeria has over 30 industrial minerals. These minerals are dispersed in all regions of the country.

ESBL-producing Enterobacteriaceae

Background: Resistance to extended-spectrum cephalosporins among Enterobacteriaceae has been reported yetthey serve as the last line treatment for severe infections in Uganda and other countries. This resistance often leadsto nosocomial infection outbreaks and therapeutic failures from multidrug resistant bacteria. The main objective ofthis study was to determine the prevalence of extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceaein clinical samples of patients in various wa...

SORPTION PROPERTIES OF HYDROLYZED STARCH GRAFT COPOLYMERS IN THE REMOVAL OF CADMIUM (II) AND COPPER (II) IONS FROM AQUEOUS MEDIA

Sorption properties of hydrolyzed starch graft poly (acrylic acid) andstarch graft poly(acrylonitrile) copolymers as sorbents for the removal ofCd (II) and Cu(II) ions from aqueous solution in batch process wereassessed. The copolymers were prepared using methods as reported inliterature and were characterized in terms of morphology using scanningelectron microscopy, confirmation of sorbents produced using Fouriertransform infrared spectroscopy and thermal stability usingthermogravimetric ana...

Assessment of the Effect of Hydrolysed Starch Graft CopolymersApplication on Soil Nutrient (Phosphorus and Nitrogen) Retention

The effects of the application of the graft copolymers (Hydrolyzed starch-g-polyacrylonitrile (HSPAN) andHydrolyzed starch-g-polyacrylic acid (HSPAA)) on the nitrogen (N) and phosphorus (P) retention capacity of soil wasevaluated in this study. Soil nutrient (N and P) retention capacity tests was carried out at three graft copolymersapplication rates (3.0, 6.0, and 9.0g/kg soil) against a blank soil sample to which graft copolymers was not applied.Diammonium phosphate (DAP) at 0, 100, and 200...

Response Surface Methodology for the Competitive Sorption of Metal ions from Aqueous Medium using Starch-Graft-Copolymer

The competitive sorption of Cu (II), Pb (II) and Cd (II) by graft copolymer of cassava starch and acrylic acid was investigated using the response surface methodology. Optimization of the medium conditions was studied through experimental design. Response surface methodology including central composite design was successfully applied to develop a response surface to optimize the medium conditions. The most influential medium parameters were determined as initial concentration, contact time an...

Equilibrium, Kinetic and Thermodynamic Studies Of Lead (II) Sorption on Hydrolyzed Starch Graft Copolymers

Hydrolyzed starch graft poly (acrylic acid) andstarch graft poly(acrylonitrile) copolymers were used as asorbents for the removal of Pb(II) from aqueous solution inbatch process. The sorbents were characterized by scanningelectron microscopy, Fourier transform infrared spectroscopyand thermogravimetric analysis. The effect of contacttime, initial concentration and temperature were assessed tooptimize the conditions for maximum sorption of the metalions. The experimental data were analyzed by ...

COMPETITIVE SORPTION OF Cd (II), Pb (II) AND Cu (II) IONS ON HYDROLYZED STARCH GRAFT COPOLYMERS

Hydrolyzed starch graft copolymers of acrylic acid and acrylonitrile were used as a sorbents for the competitive removal of Pb (II), Cd (II) and Cu (II) ions from aqueous solution in batch process. The sorbents were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, wide-angle x-ray diffractometer and thermogravimetric analysis. The equilibrium sorption properties were assessed to optimize the conditions for maximum competitive sorption of the metal ions. ...

Effects of Snail Shell as Filler on the Mechanical Properties of Terephthalic Unsaturated Polyester Resin

The mechanical properties of snail shell reinforced unsaturated polyester composite was assessed in this study. Ground snail shells of particle size 65μm were introduced at different percentages into the unsaturated polyester resin. The powdered shells were characterized using FTIR to determine the functional groups present. The tensile test was performed using an Instron universal testing machine operated at a cross head speed of 10mm/min. The tensile test specimen preparation and testing p...

EFFECTS OF POLYETHYLENE GLYCOL AS ALTERNATIVE ACTIVATOR IN A BAMBOO FIBRE FILLED NATURAL RUBBER COMPOSITE

There is a growing interest in the research community of the possibility of reducing or totalelimination of zinc oxide (ZnO) as activator in rubber compounds. This study therefore is anattempt in that direction to study the effect of polyethylene glycol (PEG) as an alternativeactivator in rubber compounds. Various levels of polyethylene glycol (0,2,3,4,5,6 phr) and zincoxide (as reference) were compounded with 100phr of natural rubber and other compoundingadditives. The effects of both polyet...

Electro physiological interactive computer system (epics)

ABSTRACTNew  interactive  computing  applications  are  continually  being  developed  in  a  bidto    support people’s changing work and recreational   activities.   As  research focuses on oneparticular   class   of   interactive   systems,   high   level   models   of   interaction   are   formul...

Multi-platform Real Time Event management information system

An automated event management system that works on all platforms/AbstractEvent management system is used to manage all the activity related to event. Inany event many service providers work simultaneously and it is very hard tomanage these providers. It is also important for event organizer that he has allthe contacts details of these service providers so that he can contact them anytime to plan an event at given time. This research work is todesign   and   implement ...


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