Resonant tunneling through Quantum dot arrays is the quantum-mechanical effect of transition through a classically-forbidden energy state. Consider rolling a ball up a hill. If the ball is not given enough velocity, then it will not roll over the hill. This makes sense classically. But in quantum mechanics, objects exhibit wavelike behaviour. For a quantum particle moving against a potential hill, the wave function describing the particle can extend to the other side of the hill. This wave re...
Abstract - Determination of proximate composition, mineral content, and the effect of ethylene glycol and ethanol at varied pH on the functional properties using standard methods were carried out on the protein concentrates of two samples of Gourd Melon (Citrullus colocynthis L.), one containing hull and the other without hull. Results for the proximate composition for the sample without hull gave 3.99% Moisture Content, 5% Ash Content, 16.455% Fat Content, 52.875% Crude Protein, 6.855% Crud...
Abstract This study was aimed at ascertaining the most preferred drugs in treating malaria fever in Delta State. A field survey was carried with 200 questionnaires distributed to health professionals at some selected hospitals. The data obtained were analyzed using percentages, bar chart and hypothesis testing via ANOVA and Chi-square. The result indicated that at 0.05 level of significance, some anti-malaria drugs are more preferred than others and Sulphadoxine/Pyrimethamine (SP) combinatio...
Field relationship, petrographical studies and geochemical analysis were combined in investigating the depositional environment and industrial viability of limestone beds in Purechem’s quarry at Onigbedu. Field observation indicates a homogenous lithology of the beds with variation in textural and clastic composition. Petrographic study revealed that the limestone falls under the Biospamicrite and Wackestone classification based on the works of Folks, (1959) and Dunham, (1962) respectively....
African yam bean (Sphenostylisstenocarpa) is an underutilized food legume crop in the tropics that is not as popular as other food legumes crop (Moyib et al., 2008). It is one of the neglected indigenous grain legumes in Nigeria. It is produced mostly in the eastern part of the country where it is consumed in different forms such as snacks, delicacy, man meal etc. It can be used for the fortification of other foods (Eke, 1997) The high protein content of African yam bean makes it an important...
ABSTRACT The present study investigated the ameliorative properties of Diospyroschloroxylon (methanolic) leaf extract (DCLE) in liver of rats intoxicated with N-Nitrosodimethylamine (NDMA). Antioxidant markers- Superoxide dismutase (SOD), catalase (CAT), reduced glutathione (GSH) and lipid peroxidation were assayed spectrophotometrically. DNA fragmentation was determined spectrophotometrically. The Bcl-2, Ki-67 and ...
Immunomodulatory Potentials of Ethanolic Leaf Extract of Phyllantus amarus in Wistar Rats Abstract The immunomodulatory effect of the ethanolic leaf extract of Phyllantus amarus on wistar rats was investigated. Twenty eight (28) male animals were used for the study. The animals were divided into four (4) groups of seven (7) animals each. Group 1 was the normal control and received distilled water, animals in group 2 were given low dose (7.1 mg/kgBW) of the extr...
ABSTRACT Food poisoning is one of the common health problems globally especially in African countries usually due to the inability to enforce food safety principles. When disease-causing bacteria, viruses or parasites contaminate food, they can cause food- related diseases. Such a bacterium, virus or parasite is known as pathogen. Food poisoning is the diseases caused by these pathogens when a contaminated food or drink is consumed. Other contaminants include natural occurring toxins and he...
ABSTRACT This study was carried out to isolate, characterize and identify Aeromonas spp. from Irrigation water and vegetables. Water and vegetable samples were collected and analyzed for physicochemical and microbiological analysis. Physicochemical parameters such as pH, Temperature, Total Dissolved Solid (TDS), Dissolved Oxygen and Biological Oxygen Demand were determined using standard methods for water samples only. Microbiological parameters such as Total Coliform count (TC), Faecal ...
ABSTRACT This document was prepared according to the stages in the life cycle of the project the introduction provides the basic idea of the initiation of the project. The company overview is provided in this documentation was to describe the history and the background to the organization. The documentation discus the problems with the existing manual driven system in this particular company as well as the new system is discussed in detail. Feasibility study is carried out to recognized how r...
ABSTRACT Tinea pedis, a fungal infection of the feet, especially within the toe webs and soles was studied using 40 soldiers (20men and 20women) as a case study. This infection is related to footwear having been considered to be a new dermatophytoses. The soldiers have the toe webs and soles cleaned with alcohol or sterile water and the lesions scrapped with sterile scalpel and placed between two glass slides with a drop of 10-20% kOH and then viewed under microscope. Branched hyp...
ABSTRACT Research works in the field of electronic learning are represented by a broad spectrum of applications, ranged from virtual classrooms to remote courses or distance learning. In this project work I propose a simple web-based e-learning system, in which, students can carry out their registration process, get access to course materials and make contact with their course lecturers. In addition, teachers can track the activities of their students and can guide them to reach the pre-deter...
ABSTRACT In Nigeria and particularly in Zaria city of Kaduna state, open dumping is still the most common household waste disposal method/practice. This type of practice is un hygienic and environmentally unfriendly. This research is aimed at effective household waste management practices in the study area. The research found that there are some other types of management or disposal method in practice in the study area, these include the use of packing and burning, dumping in pits outside the...
PREFACE The concept of Natural Water Hardness has been a subject of much discussion since the exception of the natural science unit. It borders on the sources of water hardness, types of hard water and effects of hard water. Pollution on the other hand is an environmental problem which needs to be tackled. This term paper writes more on it. Water cycle, treatment and uses are also discussed in the term paper. TABLE OF CONTENTS Title Page Dedication Acknowledgment Preface Table of ...
PREFACE Chapter one shall introduce the subject matter, in this a brief origin of electricity is presented. In chapter two we shall see definition of terms such as electricity, and house hold electricity supply. After this the reader shall endevour to read the importance of electricity, in this the advantage and disadvantage shall be discussed. Chapter four points the electrical safety in the home which is the main purpose of writing this paper, learner or readers shall 1 come at home with ...