Thesis (B.S.)--University of Missouri, School of Mines and Metallurgy, 1914. / The entire thesis text is included in file. Typescript. Illustrated by authors. J. C. Finagin, Jr. determined to be Joseph C. Finagin, Jr. and W. C. Hogoboom determined to be William Coryell Hogoboom from "Forty-Third Annual Catalague. School of Mines and Metallurgy, University of Missouri". Title from title screen of thesis/dissertation PDF file (viewed April 13, 2009)

Thesis--University of Missouri, School of Mines and Metallurgy, 1882. / The entire thesis text is included in file. Holograph [Handwritten and illustrated in entirety by author]. Title from title screen of thesis/dissertation PDF file (viewed September 30, 2008)

Thesis (M. Sc.)--University of Hong Kong, 1994. / Includes bibliographical references (leaves 67-69).

Thesis (Ph. D.)--University of Wisconsin--Madison, 1982. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Bibliography: leaves 364-384.

Thesis (doctoral)--University of Helsinki, 1989. / Includes bibliographical references (p. 92-101).

Thesis (M. Sc.)--University of Hong Kong, 1997. / Includes bibliographical references (leaf 92-95).

La co-création de produits avec les consommateurs représente un axe majeur d’innovation pour les entreprises. Cependant, la question du choix de la cible à privilégier pour une co-création efficace reste en suspens. Cette recherche souhaite apporter une réponse en confrontant deux approches opposées : le crowdsourcing vs. le ciblage de certains segments de consommateurs tels que les lead-users (LU) et les emergent-nature consumers (EN). Pour répondre à cette problématique, une étude préliminaire suivie de trois études empiriques structure cette recherche. La première étude (N = 133) répond au problème d’identification des LU dans le domaine de la grande consommation en démontrant la supériorité d’une échelle de mesure face à d’autres concurrentes. La deuxième étude (N = 456) met en avant les principales motivations qui poussent les LU et les EN à co-créer et, dans le même temps, montre que ces mêmes individus sont compétents et prêts à s’engager dans des actions de co-création avec les entreprises. La troisième étude (N = 400 et N = 800), basée sur une quasi-expérimentation, révèle que le produit développé par un petit groupe de LU est globalement plus attractif que le produit développé suivant l’approche de crowdsourcing. En outre, cette dernière étude montre que les produits développés par les LU sont plus attractifs que ceux des EN. L’ensemble de ces résultats plaide en faveur du ciblage des LU pour la co-création de nouveaux produits et offre des perspectives managériales prometteuses. Enfin, ce travail doctoral apporte, de surcroît, un éclairage théorique sur le concept de co-création et ses différentes formes. / In order to innovate, companies are increasingly relying on product co-creation with consumers. However, choosing the right target for an effective co-creation remains an unresolved issue. In this research, two contrasting approaches are compared: crowdsourcing vs. targeting specific consumers such as lead-users (LU) and emergent-nature consumers (EN). To address this problem, a preliminary study was conducted, followed by three empirical studies. The first study (N = 133) focuses on the identification of LU in the domain of consumer goods and highlights the superiority of one measurement scale among others. The second study (N = 456) throws light on the main motivations that drive LU and EN to co-create and, at the same time, shows that these two targets are competent and willing to engage in co-creation activities with firms. Based on a quasi-experimentation, the third study (N = 400 and N = 800), reveals that the products developed by a small group of LU are generally more attractive than the products developed using crowdsourcing. In addition, this final study shows that the products developed by LU are more attractive than those developed by EN. All of these results suggest that companies should target LU for the co-creation of their new products and, offer promising managerial perspectives. Finally, this doctoral work provides new theoretical insights on the concept of co-creation and its various forms.

A research report submitted to the Faculty of Health Sciences, University of Witwatersrand, South Africa in partial fulfilment of the requirements for the Master of Medicine in the branch of Community Health Johannesburg, 2014 / BACKGROUND: Lead is one of the most widely used and studied heavy metals. Lead has a number of serious detrimental effects including those related to the nervous system (seizures, ataxia) heamotological system (anaemia) and renal system. The severity and prognosis of diseases related to lead exposure is more pronounced in children, even with very low blood levels. Anecdotal reports of lead melting to make fishing sinkers in South African subsistence fishing communities prompted the conduct of an epidemiological study in four South African fishing villages to investigate the extent of lead melting and the associated risks in children. METHODS: A cross sectional analytical study was conducted. The study was conducted in two schools located along the western (Atlantic Ocean) coast of South Africa (HP Williams Primere in Stompneusbaai and NGK Primary School in Elands Bay) and in two schools located along the southern (Indian Ocean) coast of South Africa Bertie Barnard School in Stilbaai, Struisbaai Primere School in Struisbaai. Blood samples were collected for lead content analysis, and anthropometric measurements were taken. Questionnaires were administered to obtain information about socio-economic status and risk factors for lead exposure. A total of 196 children from grade 0, 1 and 2 were included in the study. RESULTS: Blood lead levels in the sample ranged from 1.9 to 22.4 μg/dl. Central tendency of the blood lead level demonstrated an arithmetic mean of 6.87 μg/dl (95% CI: 6.36 to 7.37 μg/dl) and a median of 6.1 μg/dl. More than half of the children in the study had blood lead levels between 5.0 - 9.9 μg/dl, whilst 13% that had levels higher than 10 μg/dl. Age, sex and ethnicity was not significantly associated with high blood lead levels whilst, lead melting practices and interaction of children with pets were strongly associated with high blood lead levels in children. Multivariate analysis showed that the presence of a fisherman in the household and children watching smelting were significantly associated with higher blood lead levels. Village remained a confounding variable in the model. CONCLUSIONS: This study is the first report on blood lead levels in fishing villages on the African continent and provides evidence that lead is still used widely as the primary substance used to make fishing sinkers. The prevalence of plumbism was high at 75%. Policy and awareness is needed to address this neglected public health concern.

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Thesis--University of Missouri, School of Mines and Metallurgy, 1880. / The entire thesis text is included in file. A. C. Carson determined to be Arthur C. Carson from "1874-1990 MSM-UMR Alumni Directory". Holograph [Handwritten and illustrated in entirety by author]. Title from title screen of thesis/dissertation PDF file (viewed September 5, 2008)