Spelling suggestions: "subject:"for -"" "subject:"form -""
61 |
Carbon accumulation in discontinuously frozen peatlands, southwestern Northwest Territories, CanadaRobinson, Stephen D. January 2000 (has links)
Rates of carbon and peat accumulation were studied in a series of peat landforms within discontinuously frozen peatlands near Fort Simpson, Northwest Territories. An extended distribution of the White River volcanic ash layer was used as a chronostratigraphic horizon to ensure a consistent time span of peat deposition among peat cores and to allow a large core sample size without the expense of radiocarbon dating. Apparent recent carbon accumulation rates measured over the past 1200 years were not significantly different among rich fen, peat plateau, and collapse fen (means 13--14 g C M-2 yr-1). Poor fen and bog mean accumulation rates were 20--22 g C M-2 yr -1 and were not significantly different from each other. Microtopography and water table position appear to be important controls on both carbon and vertical peat accumulation rates. A regional survey incorporating measurements from other parts of the southwestern Northwest Territories and the southeastern Yukon shows rates similar to those near Fort Simpson. / The aggradation of permafrost results in 50 and 65% decreases in carbon and vertical peat accumulation rates, respectively. Carbon and peat accumulation continue to decrease significantly with both increasing permafrost maturity and the number of ground fires. The internal degradation of permafrost results in nearly a doubling in carbon accumulation rates, yet permafrost degradation at the margins of a peat plateau results in carbon accumulation rates similar to the peat plateau. / Clymo's (1984) carbon accumulation model was applied to cores from each landform in addition to a core spanning the entire developmental history of the peatland. Results indicate that true carbon accumulation and sequestration efficiency rates in ombrotrophic peatlands are lower in the upper Mackenzie Valley than for other boreal regions, primarily owing to high decomposition rates. The cessation of carbon accumulation is being approached. The model also serves to highlight the dangers of using apparent and true carbon accumulation rates interchangably. / Apparent and true carbon accumulation rates are significantly lower than published rates from other parts of northern Canada, Finland, and the Former Soviet Union. Low and variable summer precipitation in the region may be a significant factor through increased aerobic decomposition and/or decreased plant production caused by moisture stress.
|
62 |
Adaptive use study of the Pennsylvania Station at Fort Wayne, IndianaLeonard, Craig January 1988 (has links)
The project examines the architectural and financial feasibility of adaptive reuse of the Pennsylvania Station at Fort Wayne, Indiana, as an international cultural center and railroad passenger station. The project summarizes the results of primary research which determined the history of the station's original construction and subsequent alterations, as well as the property's associations with the history of Fort Wayne. The narrative also provides an illustrated summary of the current physical condition of the site and its two structures. The proposal for adaptive reuse includes an Amtrak rail passenger facility, shops, a restaurant, and classroom and dormitory areas to be used as a campus of the International Education Center, a school based in Tokyo, Japan. The proposed rehabilitation work is described in terms of its impact upon the historic features of the property, and the design issues involved are stated, as well as the major elements of the proposed work. An itemized budget for all proposed construction is provided.Based upon current rents in the project area, financial comparison of the investment needed with projected returns determined that the project would provide an acceptable acceptable rate of return on the required investment. The study concluded that the project would be both financially and architecturally viable. / Department of Architecture
|
63 |
A cultural landscape report for historic Lindenwood Cemetery in Fort Wayne, IndianaKovacs, Julie L. January 2002 (has links)
This creative project involved preparation of a cultural landscape report for Lindenwood Cemetery in Fort Wayne, Indiana. Using methodologies adapted from the National Park Service and National Register of Historic Places, the report sought to define the existing conditions, historic significance, and appropriate treatment approach for the historic cemetery. Report chapters include site history and contextual documentation, existing conditions assessment, analysis of historic significance and integrity, treatment recommendations, and recommendations for further study. Lindenwood Cemetery was found to be significant for its association with the major four American cemetery design movements and its ability to display all four eras in a single landscape. Overall, Lindenwood retained a high level of integrity from its historic periods of significance advocating a minimally-invasive rehabilitation treatment approach. Treatment recommendations focused on maintenance and repair, guidelines for implementing new uses, and restoration of certain sunken garden elements. / Department of Landscape Architecture
|
64 |
The relationship between the social environment of an urban school district and its support of innovation and changeRobinson, Wendy Yvonne January 1996 (has links)
This study examined the social work environment and the innovation or change potential of administrators in a large midwestern school district. It examined three dimensions of the social work environment: (a) relationships, (b) personal growth, and (c) system maintenance and change. It also examined 10 dimensions of innovation and change potential: (a) challenge, (b) freedom, (c) dynamism, (d) trust/openness, (e) idea time, (f) playfulness/humor, (g) conflict, (h) idea support, (e) debates, and (j) risk-taking. The primary purposes were as follows: (a) to determine if relationships existed between dimensions of the social work environment and the administrative group's propensity for change, and (b) to determine if selected demographic variables (age, gender, race, length of service in the district, employee classification) are associated with the group's propensity for change.The study population included 214 administrators and professional and technical staff members responsible for leadership functions within the district. Two standard instruments were used to gather data. The Work Environment Scale (WES) developed by Moos at Stanford University in 1986, was used to assess the social environment. The second instrument, used to assess the 10 dimensions, was the Climate for Innovation Questionnaire (CIQ), developed by Ekvall and Arnonen in 1983; it provided a measure of the propensity of the work climate to support change as perceived by organizational members.Findings indicated that this school district is innovative, that there was a positive potential for change, that the administrative employees were committed to and concerned about their jobs, and that friendly, supportive relationships existed and were supported by organizational leaders.The personal growth dimension suggested that change within the district was moving in a positive direction and that administrators felt encouraged to be self-sufficient. Idea support (i.e., the manner in which an organization treats new ideas) was strongly related to the work environment, again suggesting conduciveness to change.Results of this study were used by the school district to move toward substantial school renewal. The process used in this research provides a framework that can be replicated in other school districts to determine possible factors in the work environment that support or inhibit personal dispositions toward change and innovation. / Department of Educational Leadership
|
65 |
The history of African Americans in Fort Worth, Texas, 1875-1980Marvel, Heather M. SoRelle, James M. January 2007 (has links)
Thesis (M.A.)--Baylor University, 2007. / Includes bibliographical references (p. 113-119).
|
66 |
Building cohesion in church leadership a cohesion enhancement-empowerment-training model for leadership team building /Young, Robert J. January 1994 (has links)
Thesis (D. Min.)--Abilene Christian University, 1994. / Includes abstract. Includes bibliographical references (leaves 208-218).
|
67 |
Ethnohistory of a fur trade community : life at Fort Clark Fur Trade Post, 1830-1860 /Williams, Randy Hugh. January 1900 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 1998. / Typescript (photocopy). "December 1998." Includes bibliographical references (leaves 277-286). Also available on the Internet.
|
68 |
Ethnohistory of a fur trade community life at Fort Clark fur trade post, 1830-1860 /Williams, Randy Hugh, January 1998 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 1998. / Typescript. Vita. Includes bibliographical references (leaves 277-315). Also available on the Internet.
|
69 |
A acurácia de um software 3D no planejamento do posicionamento do lábio superior após avanço de maxila / The accuracy of 3D software in the planning of the upper lip positioning after maxillary advancementLetícia Liana Chihara 03 May 2018 (has links)
Com a evolução da tecnologia, os planejamentos das cirurgias ortognáticas têm se tornado cada vez mais precisos em relação ao tratamento das deformidades dentofacias. Os pacientes recorrem à cirurgia ortognática com finalidade de melhorar a oclusão e a estética, mas muitas vezes acabam desistindo do tratamento e recorrem à compensação ortodôntica por receio de mudanças indesejadas. Para isso ser evitado, os softwares de planejamento estão sendo aprimorados para poderem melhorar a predição dos casos e esclarecer aos pacientes o plano de tratamento. O avanço de maxila com a osteotomia tipo Le Fort I interfere diretamente no posicionamento do lábio superior e no ângulo nasolabial, que apresentam um papel importante na expressão e na estética facial. Grande parte dos estudos ainda se restringem à comparação de imagens pré e pós-operatórias e, portanto, considerados imprecisos. Por isso são necessários estudos que avaliem um maior número de pacientes submetidos a cirurgia ortognática, utilizando o mesmo tipo de osteotomia, reduzindo o número de variáveis envolvidas e permitindo melhor entendimento das alterações do posicionamento do lábio superior após avanço maxilar. O presente estudo teve como objetivo prever as alterações da posição do lábio superior em pacientes submetidos à avanços de maxila que 5mm ou < que 5mm, comparando os traçados preditivo e final, utilizando 24 tomografias pré e pós-operatórias, e verificar se a quantidade de avanço altera essa previsibilidade. As avaliações foram feitas a partir de tomografias computadorizadas de feixe cônico, utilizando o software Dolphin Imaging 11.8. Foi utilizado o teste ´´t`` pareado para comparar os dados preditivos e pós-operatórios e a correlação de Pearson para verificar a relação entre as variáveis lábio superior e incisivo central superior. Os testes foram realizados adotando-se um nível de significância de 5%. A capacidade de predição do software foi considerada boa para as medidas horizontais; porém para as verticais, ainda há um índice de erro que pode-se considerar impreciso. Concluiu-se também que a quantidade de avanço maxilar não interfere na predição do lábio superior. / With the evolution of technology, orthognathic surgeries planning have become increasingly accurate in relation to the treatment of dentofacial deformities. Patients recur to orthognathic surgery to improve occlusion and aesthetics, but often give up treatment and turn to orthodontic compensation due to fear of unwanted changing. To avoid this, the planning softwares are enhancing to improve the prediction of cases and to enlighten the patients about the treatment plan. The maxillary advancement using Le Fort I osteotomy directly interferes in the positioning of the upper lip and the nasolabial angle, which plays an important role in facial expression and aesthetics. Most of the studies are still restricted to comparing pre and postoperative images, and therefore, considered inaccurate. Therefore, studies are required to evaluate a greater number of patients submitted to orthognathic surgery, using the same type of osteotomy, reducing the number of variables involved and allowing a better understanding of the positioning of the upper lip after maxillary advancement. The present study aimed to predict changes in the upper lip position in patients submitted to maxillary advancement 5mm or < 5mm, comparing the predictive and final tracings using 24 pre and postoperative CT scans, and determine if the amount of advancement changes this predictability. Evaluations were conducted through Cone-Beam Computed Tomography using Dolphin Imaging 11.8 software. The paired t-test was used to compare the predictive and postoperative data and the Pearson correlation to verify the relation between the upper lip and upper central incisor variables. The tests were performed with a significance level of 5%. The prediction ability of the software was considered good for the horizontal measurements; for the vertical measurements there is still an error rate, so it cannot be considered accurate. It was also concluded that the amount of maxillary advancement does not interfere in the prediction of the upper lip.
|
70 |
Avaliação da estabilidade do movimento de avanço de maxila em pacientes com fissura labiopalatina / Evaluation of stability in the maxillary forward movement in cleft lip and palate patientsJuliana Dreyer da Silva de Menezes 10 February 2015 (has links)
A cirurgia ortognática é uma indicação frequente no tratamento das deformidades dentoesqueléticas em pacientes com fissuras labiopalatinas, porém a recidiva pós-cirúrgica é relatada como uma complicação comum quando avaliada em longo prazo. A existência de discrepâncias severas somada à presença de fibrose e tecido cicatricial residuais no palato faz com que o risco de instabilidade pós-operatória seja ainda mais elevado nestes pacientes. Raros trabalhos analisam a estabilidade pós-cirúrgica em pacientes com fissuras labiopalatinas e, até o presente momento, nenhum trabalho correlacionou a amplitude de movimento com a recidiva pós-operatória. O presente estudo propôs avaliar a estabilidade pós-cirúrgica de 87 pacientes com fissura labiopalatina submetidos à cirurgia de avanço da maxila, bem como analisar a existência de correlação com a amplitude de movimento realizada. O estudo foi realizado através da análise cefalométrica dos tecidos moles em telerradiografiasdigitais adquiridas durante o pré-operatório, pós operatório imediato e após 6 meses de cirurgia utilizando o programa DolphinImaging 11.5. Os resultados foram submetidos a análise estatística através do teste Anova de medidas repetidas (p=0,05).Os resultados evidenciaram uma tendência significativa de recidiva no sentido vertical com instabilidade do plano oclusal da maxila. No período pós-operatório observouse a movimentação do complexo maxilomandibular no sentido anti-horário, promovendo a diminuição da altura do terço inferior da face e aumento do ângulo facial. As alterações observadas não apresentaram correlação com a amplitude do avanço sagital / Orthognathic surgery is frequently indicated for the treatment of dentofacial deformities in patients with cleft lip and palate, however, post-surgical relapse is reported as a common complication when the patient is evaluated in the long term. The presence of severe discrepancies combined with residual fibrosis and scar tissue on the lip and palate causes a higher risk of post-operative instability of treatment in these patients. Few papers propose to analyze the postoperative stability of orthognathic surgery in patients with cleft lip and palate and to date no study correlates extent of sagittal movement with postoperative recurrence rate. This study aims to evaluate the post-surgical stability of 87 patients with cleft lip and palate that underwent maxillary advancement surgery and to analyze a possible correlation between recurrence and the extent of movement. The study was conducted by means of cephalometric analysis of the soft tissues in digital radiographs acquired during the preoperative, immediate postoperative and 6 months after surgery using Dolphin Imaging 11.5 software. The results were statistically analyzed for repeated measures using ANOVA (p = 0.05). The results revealed a significant tendency for relapse in the vertical direction with instability of the occlusal plane. In the postoperative period, counterclockwise movement of the maxillomandibular complex was observed, leading to height reduction of the lower third of the face and increased facial angle. The observed changes were not correlated with the extent of the sagittal advancement.
|
Page generated in 0.104 seconds