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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Nonfiction and adolescent reading interests

Colbert, Joy Edith January 1974 (has links)
Already popular with the general reading public, nonfiction can have a viable place in the English curriculum. However, in order to increase teacher as well as student enthusiasm for exploring this genre, nonfiction selections chosen for study in the English class must take into consideration student reading interests. Unfortunately research offers little guidance in delineating adolescent preferences in relation to nonfiction, although a considerable number of studies assess adolescent responses to fiction. Subsequently, whether the nonfiction chosen for study in the English program is compatible with adolescent reading interests is a question generally unanswered. In an attempt to provide a basis for answering the question concerning how the nonfiction reading required of adolescents compares with their reading preferences, this study suggests a criteria checklist for assessing the content components of nonfiction selections. Derived primarily from reading interest research related to fiction, categories on the checklist are limited to those logically applicable to the content characteristics of nonfiction. Further, based on the assumption that most of the nonfiction read by adolescents in the English class is anthologized, this study analyzes the content components of twelve leading anthologies recommended for the eighth grade in terms of their correspondence to the suggested criteria. Since research indicates that reading interests of students typically span two grades in either direction, the choice of the eighth grade as the focal point of this study allows generation of implications relevant to the total junior high school experience. Results contingent upon the assessment of the one hundred seven nonfiction selections in terms of reading interests are displayed in content analysis tables. Findings indicate that twenty of the thirty-two criteria upon which each selection was evaluated show compatibility with less than one-half of the nonfiction excerpts examined. Other data reveal little variety in the type of nonfiction sub-genres anthologized, with autobiography appearing most frequently, and in the sources--book, magazine, newspaper--from which the selections are extrapolated, with the book represented most often. A number of implications are engendered by this study. Primarily the implications concern reading interest research related to nonfiction, criteria for assessing nonfiction in terms of reading preferences, reading interests of junior high school pupils, types of nonfiction recommended for junior high school students and the place of nonfiction in the English curriculum. / Ed. D.
2

Energy interaction between the troposphere and stratosphere

Hansrote, Lawrence S, Lambert, Joseph K January 1960 (has links)
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1960. / Includes bibliographical references (leaf 47). / by Lawrence S. Hansrote and Joseph K. Lambert. / M.S.
3

A response surface approach to the mixture problem when the mixture components are categorized

Cornell, John A. 02 June 2010 (has links)
A method is developed for experiments with mixtures where the mixture components are categorized (acids, bases, etc.), and each category of components contributes a fixed proportion to the total mixture. The number of categories of mixture components is general and each category will be represented in every mixture by one or more of its member components. The purpose of this paper is to show how standard response surface designs and polynomial models can be used for estimating the response to mixtures of the k mixture components. The experimentation is concentrated in an ellipsoidal region chosen by the experimenter, subject to the constraints placed on the components. The selection of this region, the region of interest, permits the exclusion of work in areas not of direct interest. The transformation from a set of linearly dependent mixture components to a set of linearly independent design variables is shown. This transformation is accomplished with the use of an orthogonal matrix. Since we want the properties of the predictor ŷ at a point w to be invariant to the arbitrary elements of the transformation matrix, we choose to use rotatable designs. Frequently, there are underlying sources of variation in the experimental program whose effects can be measured by dividing the experimentation into stages, that is, blocking the observations. With the use of orthogonal contrasts of the observations, it is shown how these effects can be measured. This concept of dividing the program of experiments into stages is extended to include second degree designs. The radius of the largest sphere, in the metric of the design variables, that will fit inside the factor space is derived. This sphere provides an upper bound on the size of an experimental design. This is important when one desires to use a design to minimize the average variance of ŷ only for a first-degree model. It is also shown with an example how with the use of the largest sphere, one can cover almost all combinations of the mixture components, subject to the constraints. / Ph. D.
4

Investigations concerning the reactions of small molecules with a series of pentacoordinate manganese complexes and the characterization of a solvent refined coal

Coleman, William Monroe 28 August 2003 (has links)
Manganese(II) complexes with linear potentially pentadentate Schiff base ligands have been prepared and characterized. Their reactions with dioxygen and nitric oxide has been studied. The ligands were synthesized from substituted salicylaldehydes and selected hiamines containing a central nitrogen donor. The five-coordinate complexes assume a distorted trigonal bipyramidal structure. The manganese(II) complexes are unstable in the air and all of them react with dioxygen in solution. Intro cases dimeric µ-peroxo dioxygen adducts were formed which are stable in air. These two complexes demonstrate reversible coordinating ability for dioxygen under mild conditions. The manganese(II) complexes react with nitric oxide when in solution when no steric problems are presented by the central donor. All the manganese(I) nitrosyls so formed demonstrate reversible coordinating ability for nitric oxide under mild conditions. Some steps in the characterization of a Solvent Refined Coal has been presented. A novel chromatographic column design has been developed which allows the rapid quantitative GPC separation of coal liquid products on a preparative scale, Among several packings that were examined Bio-Beads S-X4 proved to be the superior material. Molecular weights on each fraction were determined. Quantitative determination of metal content in the Solvent Refined Coal were made using flameless atomic absorption spectrometry. The Solvent Refined Coal was shown to contain substantial quantities of catalytic metals and metals of environmental concern. Electron Spin Resonance measurements yielded signals assignable to organic free radicals and iron(III) were observed. / Ph. D.
5

The relative effects of a bias recognition program on the bias perception level of eighth year social studies students

Coleman, Joseph Thomas 19 May 2010 (has links)
The problem of this study was to ascertain to what degree a bias recognition program would act to increase the bias perception level of eighth grade social studies students. Hypotheses were set covering five bias recognition subtest areas: ethnocentric, religious, political, sexist and racial bias recognition. Two areas, racial and sexist bias recognition, were to undergo two-way analysis. Sexist bias recognition was analyzed for differences by control and experimental group, sex, and by sex and group. The racial bias recognition subtest area was also analyzed by experimental and control group, by race, and by race and group. A review of the available literature revealed little in the way of work previously done concerning bias recognition. Some efforts had been made in the area of communication skills. The review itself was divided into three areas: 1. articles and studies dealing with communication skills 2. testing and research studies in skills 3. articles dealing with bias recognition as a skill area The review revealed only one prior research study had been done in the area of skills. This study was accomplished by Dan B. Fleming and Larry Weber and concerned a wide range of skills. Two excerpts from articles were found that concerned bias recognition as a skill. However, no research studies were found in this area. After available literature was reviewed, a bias recognition test was designed to test the aforementioned five bias recognition subtest areas as well as the total test area. This test was administered in the three experimental classes located in three different junior high schools in Roanoke, Virginia. The test was also administered to three classes located in the three remaining junior high schools. In this way each junior high school contained one treatment or control class. After an approximate thirteen school days period, the classes were retested. During this period between tests the experimental classes received instruction in the form of a bias recognition program. Data from these tests was analyzed using both descriptive and inferential statistical techniques. The statistical application of most importance was multivariate and univariate analysis of covariance. In covariance analysis of a pretest - posttest design, posttest scores are adjusted for pretest scores in order to statistically control for any initial differences that may have existed between the groups at the time of the pretest. Descriptive analysis showed the experimental group exhibited superior achievement on the posttest by total and subtest areas. Inferential analysis further showed a significant difference existed between groups for the total score as well as all the five subtest areas of ethnocentric, religious, political, sexist and racial bias recognition. The two subtest areas exhibiting the greatest success were political and sexist bias recognition. No significant difference was found to exist in the sexist bias recognition subtest area by sex or sex and group. In the racial bias recognition subtest area significant differences were not shown to exist by race, but did exist by race and group. Simultaneous confidence intervals analysis further showed that the most effective combination was black students that had received the treatment, compared to black students not receiving the treatment. Conclusions from this study showed positive results in all subtest and total areas pointing toward a need for a more systematic approach toward skills-oriented curriculum in public schools. One facet of the study of importance is a development of a bias recognition test that can be further refined toward the goa1 of more effective measurement of this skills area. / Ed. D.
6

Factors associated with membership and non-membership status in FFA of black Americans from selected NFA states

Coffey, David McMillian 07 April 2010 (has links)
The purpose of this study was to investigate the effect of selected socio-demographic variables and attitudinal variables on membership vs. non-membership in the FFA. The groups under investigation were 602 black tenth grade vocational students from 66 high schools in five former NFA states. Criteria for selection of high schools were: (a) must have a high school vocational agriculture program; and (b) must have at least 10 per cent black enrollment in vocational agriculture. Data collected from the sample groups were primarily analyzed using chi-square tests between members and non-members. Pearson Product-Moment Correlation (r) coefficient was used to determine the relationship between percentage black FFA membership and percentage black vocational agriculture enrollment. Responses between FFA members and non-members differed significantly in nine of the sixteen variables. FFA members are more likely to attend rural schools, be children of farmers, live in areas of less than 2,500 population, believe that anyone can be successful in FFA, and respect farmers and farming than vocational agriculture students who are not FFA members. No significant difference between members and non-members could be found on the following variables: the name of the organization, the attitudes toward agriculture, race of student and his/her advisor and reasons for enrolling in vocational agriculture. Fifty-two percent of the students sampled were FFA members. A significant relationship was found between percentage black vocational agriculture enrollment and percentage black FFA membership. / Ed. D.
7

Constraints on tensor-to-scalar ratio from Planck measurement / 普朗克衛星測量對純量張量比例的規範 / CUHK electronic theses & dissertations collection / Constraints on tensor-to-scalar ratio from Planck measurement / Pulangke wei xing ce liang dui chun liang zhang liang bi li de gui fan

January 2013 (has links)
Lau, King = 普朗克衛星測量對純量-張量比例的規範 / 劉荊. / Thesis M.Phil. Chinese University of Hong Kong 2013. / Includes bibliographical references (leaves 83-89). / Abstracts also in Chinese. / Title from PDF title page (viewed on 15, September, 2016). / Lau, King = Pulangke wei xing ce liang dui chun liang-zhang liang bi li de gui fan / Liu Jing.
8

Economic evalutation of nuclear waste underground emplacement concepts

Coe, Gabriela R. 24 October 2009 (has links)
see document / Master of Science
9

A comparison of fixed parameter versus adaptive digital tracking filters

Colonna, Charles Keith January 1977 (has links)
The simulation and testing of several state tracking techniques over a range of process and measurement noise environments is considered. The problem is placed in the context of tracking a maneuvering vehicle from noisy position data with the vehicle accelerations considered as a random process about which the first and second order statistics are known. The tracking filters under test are the fixed α-β filter, the double α-β filter, the second order Kalman filter, the augmented Kalman filter, and the double Kalman filter. All filters show improved performance as the measurement noise increases and the process noise decreases. The superiority of the Kalman filter over the simpler deterministic digital trackers decreases as the measurement noise increases and the process noise decreases. The double Kalman filter, with the capability of adaptive adjustments of threshold values, indicates the best overall tracking for combined maneuver and non-maneuver tracking. / Master of Science
10

Det är liv i burken : om 80-talsdatorn Commodore 64 och de glada amatörerna med en relation till den

Leijnse, Simon January 2006 (has links)
No description available.

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