Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 285 for “"Pure sciences"”.
-
Educational interventions and the performance of Female students in mathematics and science in the seleceted Secondary Schools in Lusaka District from 2005 to 2010
… pattern of female performance in mathematics and sciences from 2005 to 2010. The objectives of the study were: to find the progression pattern of the female performance in mathematics and science from 2005 to 2010 in the selected school; to identify the factors affecting female performance; and to …
-
Educational interventions and the performance of Female students in mathematics and science in the seleceted Secondary Schools in Lusaka District from 2005 to 2010
… pattern of female performance in mathematics and sciences from 2005 to 2010. The objectives of the study were: to find the progression pattern of the female performance in mathematics and science from 2005 to 2010 in the selected school; to identify the factors affecting female performance; and to …
-
Review of problems of transferring and localising technology in the Arab world
… totechnology studies such as mathematics, pure sciences, engineering etc. There is aneed to investigate strategies that will lead to an increase in enrolments. The Arabcountries also face a brain drain where highly educated Arab nationals are recruitedby western countries. This also affects …
-
A terahertz two-wire waveguide with low bending loss
We present experimental and theoretical evidence for low loss terahertz propagation along a two-wire waveguide. We find that the mode pattern at the end of the waveguide resembles that of a dipole consistent, with the expected fundamental mode of the structure. We experimentally observe that the …
-
A survey of discontinuous Galerkin methods for solving the time domain Maxwell's equations
The discontinuous Galerkin (DG) method with different numerical fluxes is applied to the square wave guide problem to avoid spurious modes that arise from the application of standard finite element methods. These numerical fluxes are the central, upwind and Lax-Friedrichs found in the literature. A …
-
A study of the reaction between sodium peroxide and oxygen: The preparation and properties of sodium superoxide
Dissertation (Ph.D.)--University of Kansas, Chemistry, 1949.
-
Studies on the higher oxides of the alkali and alkaline earth metals
Dissertation (Ph.D.)--University of Kansas, Chemistry, 1948.
-
Synthesis of DMAP tethered polymer chains for reversible micelle formation
<p>Dimethylaminopyridine (DMAP) can act to catalyze numerous organic reactions. To increase its recovery and reuse, it has been tethered to dendrimers and to micellar systems, creating nano-scale catalytic pockets for reactions to proceed. Previously developed systems show diminished reactivity …
-
On a generalization of the Hanoi Towers group
<p>In 2012, Bartholdi, Siegenthaler, and Zalesskii computed the rigid kernel for the only known group for which it is non-trivial, theHanoi towers group. There they determined the kernel was the Klein 4 group. We present a simpler proof of this theorem. In thecourse of the proof, we also compute …
-
Synthesis and characterization of various coinage metal complexes with bridging diimine ligands
This thesis is a study of coinage metal complexes with various bridging diimine ligands. It has 75pp, 4 tables, 55 figures and the references for the study of group 11 elements. It discusses one main project divided by three chapters describing in general the synthesis; structure and spectroscopic …
-
Synthesis, characterization, and lighting applications of group 11 metallopolymers with tunable phosphorescence
This thesis with it 66 pp., 3 tables, 26 Figures and references is a study of group 11 monovalent metallopolymers. Three major chapters that involve synthetic strategies to obtain and enhance the phosphorescence of luminescent metallopolymer have been investigated. The first chapter includes an …
-
The analysis of limit orders using the Cox proportional hazards model with independent competing risks
I apply the Cox proportional hazards model with independent competing risks to study the hazard rates of executed, cancelled, and partially executed limit orders submitted for Microsoft to the Island ECN for one day. The instantaneous probability of execution increases with decreases in the buy …
-
The inverse problem to the Voronoi diagram
The primary purpose of this thesis is to address the problem of solving the Inverse Problem for the Voronoi Diagram where the Inverse Problem is: Given a diagram that is in fact a Voronoi Diagram find the set of points X = {x1, x2, x3,…,x n} in R2 that will generate the diagram. In formulating a …
-
Using data mining techniques to identify “the best” operational patterns for enrollment modeling
For any Educational Institution it is very important to know the number of new students and the number of returning students. Based on these numbers, there could be conducted predictions of the budget that the institution will have for the next year. This research will utilize pre-existing …
-
Electric field quenching of single-walled carbon nanotube photoluminescence
The effect of an electric field on the photoluminescence of single-walled carbon nanotubes was investigated. Individual SWNTs embedded in polymeric film were deposited on microscope slides with electrodes. The fluorescence intensity and spectra of single semiconducting SWNTs were acquired. When …
-
The design and statistical analysis of single-cell RNA-sequencing experiments
<p>Next-generation DNA- and RNA-sequencing (RNA-seq) technologies have expanded rapidly in both throughput and accuracy within the last decade. The momentum continues as emerging techniques become increasingly capable of profiling molecular content at the level of individual cells. One goal of this …
-
Bioorthogonal Reactions: Synthesis and Evaluation of Different Ligands in Copper Catalyzed Azide-Alkyne1,3-Dipolar Cycloaddition (CuAAC)
<p>The Copper CatalyzedAzide-Alkyne1,3-Dipolar Cycloaddition (CuAAC) reaction has unique features that qualify it to be one of the best click reactions. Its applications have been shown in different aspects and for multiple purposes. The oxidative degradation of biological systems (labile proteins …
-
Isometries of Besov Type Spaces among Composition Operators
<p>Let Bp,alpha for p >1 and alpha >1 be the Besov type space of holomorphic functions on the unit disk D. Given Phi, a holomorphic self map of D, we show the composition operator CPhi is an isometry on Bp,alpha if and only if the weighted composition operator WPhiPhi, is an isometry on the …
-
Success of entering college freshmen taking developmental mathematics at Texas Woman's University
The purpose of this study was to measure the overall success in students' performances using several different variables in developmental mathematics when comparing the redesign and paired redesign course to traditionally taught lecture and computer based developmental mathematics courses at Texas …
-
Making the grade: A study of academic success
Freshmen account for more than fifty percent of students who drop out before completing their degree, which means that increasing the success rates for freshmen is a critical challenge for many colleges and universities. In order for these academic institutions to increase student retention, …
Page 1 of 15