Natural & Applied Sciences

Research Papers/Topics in Natural & Applied Sciences

LABORATORY REPORT ON THE DETERMINATION OF THE MOISTURE AND CLAY CONTENT OF GREEN SAND

The quality of castings in a green sand mould is influenced significantly by its properties, such as green compression strength, permeability, mould hardness, and others, which depend on input parameters. The relationships of these properties with the input parameters, like sand grain size and shape, binder, water, clay, etc. are complex in nature. The goal of this paper is to determine the green sand mould compressive strength in case of input parameters. A good moulding sand ...

PHYSIOCHEMICAL AND SENSORY PROPERTIES OF COOKIES PRODUCED FROM WHEAT, SORGHUM AND DEFATTED COCONUT FLOUR BLENDS.

ABSTRACTCookies were produced from wheat, sorghum, and defatted coconut flour blends to determine their potentials in cookie manufacture. Eight Cookies formulations were produced and they were evaluated for their proximate, physical, mineral, colour and sensory properties. The result showed that the moisture content ranges from 7.10 to 10.89%, ash content ranges from 0.88 to 1.15%, protein content ranges from 9.18 to 12.25%, crude fat ranges from 9.59 to 11.00%, crude fibre ranges from  ...

Gene frequencies of ABO and Rh blood groups in Nigeria: A review

Background: ABO and Rhesus factor (Rh) blood type are germane in human life in genetics and clinicalstudies.Aim of the study: The review was undertaken with the objective to provide data on the ABO and Rh(D)blood group distribution and gene frequency across Nigeria which is vital for blood transfusion and susceptibility to disease.Materials and methods: Literature search for ABO/Rh blood distribution in Nigeria was done and allele frequencies of A, B, O, D and d were calculated from the frequ...

APPLICATION OF DIFFERENTIAL TRANSFORM METHOD TO THE VIBRATION ANALYSIS OF SHEAR DEFORMABLE AFG BEAMS

The vibrations of axially functionally graded (AFG) beams are examined incorporating shear deformation and an imperfection. A coupled nonlinear model is developed in the Hamiltonian framework for an AFG imperfect beam. Different sources of displacement nonlinearities are involved in this problem, namely, the geometrical nonlinearities due to the large deformations, and the nonlinearities due to the presence of a geometrical imperfection along the length of the beam. Expressions for the virtua...

Nanotechnology and its applications in medicine

Chapter one : introductionApplication of nanotechnologyConclusion

Effect of some organic additives on compressive strength of clay bricks

ABSTRACTOrganic additives are agro-waste materials which when mixed with clay; improve its physical properties and its performance. These physical properties include compression strength, density, porosity etc. In addition to cost, challenges facing clay bricks are their reliability. The effect of some organic additives on compressive strength of clay bricks was investigated, were some possible organic additives, including Rice husk, Rice husk ash, Cow dung and Cow dung ash were considered. A...

Alteration in biochemical indices following chronic administration of methanolic extract of Nigeria bee propolis in Wistar rats

Objective: To determine the noxious attribute of methanol extract of Nigeria bee propolis at 300 and 600 mg/kg body weight in rats.Methods: Healthy Wistar rats were indiscriminately assigned into three groups (A-C) of five rats each. The control rats (Group A) were orally given 0.5 mL of dimethyl sulfoxide daily for 21 days while rats in Groups B and C were administered the same 0.5 mL dimethyl sulfoxide containing 300 and 600 mg/kg body weight methanol extract of bee propolis respectivel...

African natural products with potential antioxidants and hepatoprotectives properties: a review

Free radicals are highly reactive molecules generated during oxidation reactions which in turn initiate chain reactions resulting to cellular damage. There is substantial evidence implicating free radicals especially reactive oxygen species (ROS) in the etiology of more than one hundred degenerative disorders in humans including, arthritis, atherosclerosis, ischemia and reperfusion injury of many tissues, gastritis, diabetics, central nervous system injury, acquired immunodeficiency syndrome ...

Human Genetic Markers and Structural Prediction of Plasmodium falciparum Multidrug Resistance Gene (pfmdr1) for Ligand Binding in Pregnant Women

Te study aims to determine the association of malaria infection with ABO blood groups and genotype and also to detect pointmutations at positions 86, 184, 1034, and 1042 of the Plasmodium falciparum multidrug resistance gene (pfmdr1) in blood samplescollected from pregnant women attending General Hospital Minna. Out of 250 pregnant women screened, 39 (15.60%) had malariainfection. Prevalence was higher in women, during the third trimester (46.15%), genotype AA (64.10%), and O blood group (53....

POLYETHYLENE GLYCOL – MODIFIED NANOCARRIER ENCAPSULATION OF DIMINAZENE ACETURATE IMPROVED HAEMATOBIOCHEMICAL RECOVERY IN TRYPANOSOMA BRUCEI BRUCEI INFECTED RATS

AbstractThe enhanced safe drug delivery properties of polyethylene glycol (PEG) – modified Diaminazene aceturate nanocomposite against Trypanosoma brucei infected rats were evaluated. The drug conjugation was carried out by adding gold nanoparticle to PEG and diminazene aceturate. A group of infected rats were treated with free diaminazene aceturate, while other groups were treated with conjugated drug at different drug release time interval. Results revealed complete parasite clearanc...

Analysis and Mechanical Performance of Stone Dust Reinforced Al (6063)

AbstractThis research technically aims at utilizing stone dust as reinforcement to check the mechanical properties of Al(6063) with different weight ratio of the reinforcement. The alloy consisting of 0, 2, 6 and 10 wt% of the reinforcements were produced using double stir casting method. Evaluation of the microstructure, percentage porosity check, measurement of density and mechanical properties of the composites produced were used to check the performance levels of the composite produced. T...

Design and implementation of course registration and result processing

Caritas University, Amorji Nike, Enugu, is a private University approved by the Federal Government of Nigeria on December 16 2004. It was officially opened on January 21, 2005 by the Federal Ministry for Education, Prof. Fabian Osuji. The formal opening was on January 31, 2005. The pioneer students of 250 matriculated on May 28, 2005 in beautiful ceremony that attracted dignitaries both church and state. It is the second Catholic University in Nigeria founded by Rev. Fr. Prof. Emma...

DESIGN AND IMPLEMENTATION OF A VIRTUAL E-LEARNING SYSTEM

ABSTRACT The demand to acquire knowledge or to learn has rise, thus, the present technology had gone a long way to provided means to learn, irrespective of the distance or the location of the E-learner and source of information. This is achieved through electronic sharing of information and virtual classroom. However, virtual classroom and text based e- learning is a system design to help student gain access and acquire knowledge in any university of their choice. This method of...

Integrated geophysical investigation of foundation condition beneath a site earmarked for a civil engineering construction project

Geophysical investigation involving the electrical resistivity method was carried out at a site earmarked for construction of a Lecture Theatre at the Obafemi Awolowo University Teaching Hospital Complex (OAUTHC) in Ile-Ife, Osun State Nigeria. The aim was to generate 2-D subsurface images beneath the site which will provide the required geological information for location and design of the building foundation. The geophysical investigation involved the 2-D imaging technique which utiliz...

DEPTH TO MAGNETIC SOURCE ANALYSIS USING SOURCE PARAMETER IMAGING (SPI), ANALYTICAL DEPTH AND SPECTRAL DEPTH ESTIMATES

Four sheets of aeromagnetic data, which are the aeromagnetic map of Nsukka, Udi, Nkalagu, and Igunmale were obtained from the Nigerian Geological Survey Agency, these areas are within the Lower Benue trough and Anambra Basin, Southeast of Nigeria. Oasis Montaj 6.4.2, ArcGIS 10.2.2, Surfer 11, and Excel 2016 software, were used in the processing and interpretation of the aeromagnetic data obtained qualitatively and quantitatively. The results of the qualitative interpretation on application of...


61 - 75 Of 1847 Results