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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.
91

Effects of community service activities on 4-H members in Waupaca County

Hoye, Eugene G., January 1963 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1963. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 120-121).
92

4-H Club advisors' concepts of their roles a study of the opinions of seventy 4-H Club advisors in California /

Duncan, Dorothy E., January 1957 (has links)
Thesis (M.S.)--University of Wisconsin, 1957. / Extension Repository Collection. Typescript (carbon copy). Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 108-109).
93

A study of the members of the rural 4-H Clubs of Beltrani County, Minnesota, to determine the relationship of the parents' occupations to the choice of projects

Sherman, Merle. January 1958 (has links)
Thesis (M.S.)--University of Wisconsin, 1958. / Extension Repository Collection. Typescript (carbon copy). Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 56-57).
94

A time use study of Wisconsin state 4-H staff members

Bates, Charles Thomas, January 1960 (has links)
Thesis (M.S.)--University of Wisconsin, 1960. / Extension Repository Collection. Typescript (carbon copy). Includes bioliographical sketch of author. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 85-86).
95

Expression von Muzin 4 in duktalen Adenokarzinomen und intraduktalen papillär-muzinösen Neoplasien des Pankreas und deren Vorläuferläsionen

Schminke, Lisa January 2010 (has links)
Zugl.: Kiel, Univ., Diss., 2010
96

The role of the 4-H youth program of the Ohio Cooperative Extension Service in citizenship education /

Scheneman, Carl Stephen. January 1979 (has links)
Thesis (Ph. D.)--Ohio State University, 1979. / Includes bibliographical references (leaves 147-152). Available online via OhioLINK's ETD Center.
97

The relationship between the extent to which a county is rural or urban and the characteristics of a county's 4-H program /

Miller, Juanita Elveta, January 1900 (has links)
Thesis (Ph. D.)--Ohio State University, 1985. / Includes vita. Includes bibliographical references (leaves 193-195). Available online via OhioLINK's ETD Center.
98

3D segmentation of great vessels using active contours and morphological image processing techniques

Montejo Garcia, Cristina 25 May 2010 (has links)
The scope of this project is to present a semi-automated vessels segmentation algorithm, to describe its usage and results. This will be achieved combining several segmentation algorithms to get proper vessel segmentation and visualization. Consequently, automatic segmentation can significantly reduce the scan-to-diagnosis time, thus helping the clinicians to reach the fundamental goal of efficient patient management. In order to complete our project, we can identify different phases: - Correct reading of CT and MR images and extraction of data needed for the post-processing. - Processing of these images using the most appropriate segmentation techniques to get the desired contour. - Visualization of the contour. / -
99

Mécanismes de la fécondation dans l'espèce équine : approche comparée entre les modèles équin et porcin. / Mechanism of fertilization in equine species : comparative approach between equine and porcine species

Mugnier, Sylvie 12 November 2009 (has links)
Dans l’espèce équine, les mécanismes de la fécondation sont mal connus. Afin de mieux les comprendre, nous avons développé une approche comparative entre les équins (faibles taux de fécondation in vitro : 0-60%) et les porcins (forts taux : 80–90%). Notre but était d’identifier les différences et les similitudes entre ces deux modèles opposés afin de mettre en évidence des éléments clés de la fécondation. Nous avons montré que 1) la zone pellucide de l’ovocyte est un élément clé dans l’interaction des gamètes, 2) sa composition et sa structure sont différentes entre les espèces équine et porcine, 3) chaque vertébré a son propre jeu de protéines permettant l’interaction des gamètes, 4) la ß-1,4-galactosyltransferase n’est pas nécessaire pour cette interaction dans les espèces équine et porcine, contrairement aux bovins, 5) les sécrétions de l’oviducte participent aux mécanismes de la fécondation équine, mais les protéines impliquées n’ont pas pu être identifiée. / In equine species, the mechanisms of fertilization remain largely enigmatic. In order to clarify these mechanisms, we have developped a comparative strategy between equine (low in vitro fertilization rates: 0- 60%) and porcine (high rates: 80-90%) species. Our objective was to identify differences and similarities between these two opposite models in order to highlight key components of fertilization. We showed that 1) the zona pellucida is a determining element in gamete interaction, 2) its composition and its structure are different between equine and porcine species, 3) each vertebrate has its own protein-set involved in gamete interaction, 4) the ß-1,4-galactosyltransferase is not necessary for gamete interaction in the horse and the pig, contrary to the bovine, 5) the secretions of oviduct cells take part in the mechanism of equine fertilization, but the proteins involved remain to be identified.
100

Etude de la fissuration engendrée par le séchage dans les matériaux cimentaires : influence des inclusions / Study of cracking caused by drying in cementitious materials : influence of inclusions

Li, Ling 16 December 2016 (has links)
Le séchage de matériaux cimentaires conduit à des microfissures, ce qui a des conséquences importantes sur les propriétés mécaniques et de transport. L’objectif de cette étude est d’analyser l’évolution de la microfissuration des matériaux cimentaires au cours du séchage et de mieux comprendre les mécanismes associés. Ce travail présente une étude expérimentale et numérique sur la microfissuration. Les expériences sont réalisées afin d’étudier l’effet du séchage et le rôle des granulats. L’étude de la structure interne et la propagation des fissures est menée par microtomographie par rayons X. Les influences de la rigidité et de l’état de surface d’inclusions sur l’apparition de la fissuration sont mises en évidence. D’autre part, une série d’essais mécaniques est mise en œuvre sur la pâte de ciment pour comprendre le comportement mécanique de ce matériau et servir à l'identification des paramètres du modèle dans l’étude numérique. Des modélisations numériques sont alors proposées afin d'investiguer les mécanismes associés à la microfissuration observée expérimentalement. Ces modélisations sont réalisées dans le cadre de la poromécanique des milieux partiellement saturés, et le matériau est considéré comme biphasique : des inclusions noyées dans une matrice poreuse cimentaire (modèles élastique, élasto-plastique et endommagement). Les résultats permettent d'accéder à la distribution des contraintes et reproduisent la fissuration observée. L’influence du comportement de la matrice et de la rigidité des inclusions est étudiée. Enfin, une modélisation préliminaire sur la base d'éléments finis étendus se focalisant sur les effets de l'interface pâte-inclusions est proposée. / Drying process of cementitious materials leads to microcracks, which has important consequences on transport and mechanical properties. The aim of this study is to investigate the evolution of microcracking of cementitious materials during drying and better understand the associated mechanisms. This work presents both an experimental study and a numerical simulation of drying shrinkage microcracking. The experiments are performed in order to study the effect of drying and the role of the aggregates. The study of the internal structure and crack propagation is conducted by X-ray microtomography. The influences of the stiffness and the surface roughness of inclusions on the occurrence of cracking are highlighted. Moreover, a series of mechanical tests is performed on the cement paste to understand the mechanical behaviour of this material and to use for identification of the model parameters in the numerical study developed in the framework of this thesis. Numerical models are then proposed to investigate the mechanisms associated with experimentally observed microcracks. These modellings are performed under the framework of poromechanics in partially saturated medium, and the material is considered as biphasic: the inclusions embedded in a porous cement matrix (elastic models, elastoplastic and damage). The results of numerical simulations allow access to the stress distribution and reproduce the observed cracking under microtomography. The influences of matrix behaviour and stiffness of inclusion are studied. Finally, a preliminary modelling based on extended finite element method focusing on the effects of paste-inclusions interface is proposed.

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