Natural & Applied Sciences

Research Papers/Topics Natural & Applied Sciences

Cloud Computing Framework For Resource Sharing Among Tanzanian Higher Learning Institutions

ABSTRACT Higher Learning Institutions worldwide have been depending highly on Information Technology for their business requirements and service delivery. They need substantial investment for procuring and maintaining software as well as hardware. Due to the growing needs and financial crisis, universities are facing challenges in acquiring high-performance computing facilities to support not only advanced analysis but also scientific researches. This study intended to develop a cloud comput...

ICT Usage Readiness for Private and Public Secondary Schools in Tanzania, a Case of Dodoma Municipality

ABSTRACT The use of ICT in education has been proved to be a key milestone in improving the learning process in different levels of education. To tap this opportunity, the government of Tanzania has implemented a number of projects aimed at introducing and using ICT in different levels of education. There have been similar initiatives in the private institutions as well. However, such initiatives have been facing different challenges particularly on the readiness of using ICT for education f...

Contributions To The Theory Of Parastrophs And Derivatives Of Loops

ABSTRACT This Thesis investigates the nature of the parastrophs and derivatives of loops both of Bol-Moufang (Extra, Moufang, Central loops) and non Bol-Moufang (Conjugacy Closed loops) type in general. Extra loops is the case study. By using Fenyves (1968, 1969) definition of Extra loops and the results of Goodaire and Robinson (1982, 1990), this work shows that the parastrophs and derivatives of an Extra loop exist. Taking into consideration Ken Kunen (1996) results, it has been establishe...

Biosystematic Studies In The Genus Euphorbia L. In Nigeria

ABSTRACT Euphorbia L. is a genus of the family Euphorbiaceae. Some of the species are culturally, economically and medicinally valuable. The taxonomy of the genus was re-evaluated using classical and experimental approaches to unravel the complex inter-relationships and problems of identification existing within the genus. Herbarium studies, natural population sampling, ecological observation, experimental cultivation, morphological and anatomical characterization were some of the study appr...

Bioactivity Of Extracts Of Some Nigerian Plants On Insect Pests Of Stored Grains

Abstract Responses to structured questionnaires administered to farmers and housewives in southwestern part of Nigeria revealed that 39 plant species were in use for various purposes in the expressed belief that they possessed bioactive properties.

Availability Of Information Resources For Research Output: Perception Of Academic Staff Members In Nigerian Federal Universities

Abstract The volume of information resources potentially available in the globe is massive; hence it becomes necessary to examine available information resources for academics research activity in the academia. This study, therefore, examined the perception of academics on availability of information resources for research productivity in federal universities in Nigeria. Descriptive survey research design was adopted. The Multistage sampling technique was used to select 1,057 academic staff ...

Auto Antibodies And Immunological Correlates As Indicators Of Infertility In Some Euthyroid Nigerian Women

Abstract This study was carried out to determine the serum auto-antibody levels as primary markers and immunological correlates

Application Of Liquid Filters To Photothermal-Photoquantum Solar Energy Conversion

Abstract This thesis discusses the development, design, fabrication and testing of spectrally selective beamsplitting absorption filters which can decouple quantum and thermal convertors to improve conversion of the total solar spectrum to useful energy.

An Investigation Of Some Factors Influencing The Pathogenicity Of Neisseria Meningitidis

Abstract The nasopharyngeal carriage rate of Neisseria meningitides among 639 school children

An Investigation Of Π-Complexes From Disubstituted Acetylenes And Copper (I) Compounds

ABSTRACT 1-bromo-3-methylbut-1-yn-3-ol, 1-bromo-3-methypent-1-yn-3-ol, 4-hydroxy-4-methyhex-2-yn-nitrile, 1-chloro-3-mrthylpent-1-yn-3-ol, 1-chloro-3-methybut-1-yn-3-ol, 4-methylhex-2-yn-4-ol, 4-methylhexa-2, 3-dienenitrile and 4-methoxy-4-methylhex-2.yn were separately prepared and then each of them was used as the disubstituted acetylene for complexation with copper(I), cyanide, copper(I) bromide and copper(I) chloride respectively in dimethyl form amide (d.m.f) and then in dimethyl sulphid...

Comparison of First order predicate logic fuzzy logic and non-monotonic logic as knowledge representation methodology

CONTENTS,INTRODUCTION,KNOWLEDGE MANAGEMENT AND KNOWLEDGE REPRESENTATION,LOGIC AS A KNOWLEDGE REPRESENTATION METHOD,CLASSIFICATION OF LOGIC,PROPERTIES OF KNOWLEDGE,EVALUATION OF KNOWLEDGE REPRESENTATION METHODS,CONCLUSION,REFERNCES

Intuition in insight and non-insight problem solving

CONTENTS,WHAT IS PROBLEM SOLVING?,WHAT IS META-COGNITION?,INSIGHT PROBLEM SOLVING,NON-INSIGHT PROBLEM SOLVING,EXPERIMENTS CONDUCTED,THE RESULTS OF THE EXPERIMENTS,CONCLUSION,REFERNCES

Performance Enhancement Of Silver-Nanoparticle/Titania (Ag-Np/Tio2) Using Chlorophyll As Dye Sensitizer

ABSTRACT Titanium dioxide or titania (TiO2) being one of the most promising semiconductors for many photoelectrochemical applications, its utilization remains typically confined to ultraviolet (UV) light absorption because of its wide band gap (3.2 eV for anatase and 3.0 eV for rutile), where by UV only accounts for 4-6% of the solar radiation. There is a need to shift the absorption threshold of the UV-region response of TiO2 into the visible region (accounts for ~45% of the total energy of...

Environmental Factors Associated With Juttadinteria Albata (L. Bolus) L. Bolus, Population Structure And Assessment Of Its Performance In Trial Planting At Sendelingsdrif Mine

ABSTRACT Juttadinteria albata is a leaf succulent plant species endemic to the southern Namib in the Succulent Karoo in Sendelingsdrif near the Orange River. The proposed strip mining for diamonds at NAMDEB‟s new Sendelingsdrif mine may contribute to the loss of up to 39% of J. albata population. This may increase the risks of extinction for J. albata and species which may be interacting with it. The aim of the study was to investigate the biology of J. albata for ecological restoration po...


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