Teses / dissertações sobre o tema "Cumulative case study"
Crie uma referência precisa em APA, MLA, Chicago, Harvard, e outros estilos
Veja os 16 melhores trabalhos (teses / dissertações) para estudos sobre o assunto "Cumulative case study".
Ao lado de cada fonte na lista de referências, há um botão "Adicionar à bibliografia". Clique e geraremos automaticamente a citação bibliográfica do trabalho escolhido no estilo de citação de que você precisa: APA, MLA, Harvard, Chicago, Vancouver, etc.
Você também pode baixar o texto completo da publicação científica em formato .pdf e ler o resumo do trabalho online se estiver presente nos metadados.
Veja as teses / dissertações das mais diversas áreas científicas e compile uma bibliografia correta.
Alzubaidi, Samirah Hamid. "A case study on cumulative logit models with low frequency and mixed effects". Kansas State University, 2017. http://hdl.handle.net/2097/38252.
Texto completo da fonteDepartment of Statistics
Perla E. Reyes Cuellar
Data with ordinal responses may be encountered in many research fields, such as social, medical, agriculture or financial sciences. In this paper, we present a case study on cumulative logit models with low frequency and mixed effects and discuss some strengths and limitations of the current methodology. Two plant pathologists requested our statistical advice to fit a cumulative logit mixed model seeking for the effect of six commercial products on the control of a seed and seedling disease in soybeans in vitro. In their attempt to estimate the model parameters using a generalized linear mixed model approach with PROC GLIMMIX, the model failed to converge. Three alternative approaches to solve the problem were examined: 1) stratifying the data searching for the random effect; 2) assuming the random effect would be small and reducing the model to a fixed model; and 3) combining the original categories of the response variable to a lower number of categories. In addition, we conducted a power analysis to evaluate the required sample size to detect treatment differences. The results of all the proposed solutions were similar. Collapsing categories for a cumulative/proportional odds model has little effect on estimation. The sample size used in the case study is enough to detect a large shift of frequencies between categories, but not for moderated changes. Moreover, we do not have enough information to estimate a random effect. Even when it is present, the results regarding the fixed factors: pathogen, evaluation day, and treatment effects are the same as the obtained by the fixed model alternatives. All six products had a significant effect in slowing the effect of the pathogen, but the effects vary between pathogen species and assessment timing or date.
Fivaz, Karin. "Cumulative effects in environmental impact assessment (EIA) : Durban Harbour case study / by Karin Fivaz". Thesis, North-West University, 2008. http://hdl.handle.net/10394/3708.
Texto completo da fonteBragagnolo, Chiara. "Improving the consideration of cumulative effects in Strategic Environmental Assessment of spatial plans: A case study in the peri-urban region of Milan". Doctoral thesis, Università degli studi di Trento, 2011. https://hdl.handle.net/11572/368792.
Texto completo da fonteBragagnolo, Chiara. "Improving the consideration of cumulative effects in Strategic Environmental Assessment of spatial plans: A case study in the peri-urban region of Milan". Doctoral thesis, University of Trento, 2011. http://eprints-phd.biblio.unitn.it/546/1/PhD_Thesis_BragagnoloChiara.pdf.
Texto completo da fonteKhan, Mahmudur Aryan. "A comparative Life Cycle Analysis of new and old designs of crane truck frames : Case study at Vemservice". Thesis, Mittuniversitetet, Avdelningen för ekoteknik och hållbart byggande, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-41976.
Texto completo da fonte2018-06-29
Lecomte, Louise. "La symbiose féministe, comprendre les initiatives féministes de commoning par l’approche symbiotique". Electronic Thesis or Diss., Université Paris sciences et lettres, 2024. http://www.theses.fr/2024UPSLD027.
Texto completo da fonteFeminist initiatives are organizing to generate social transformations, weaving together various feminist cause spaces. These initiatives resemble multi-actor commoning processes. We propose to develop a symbiotic approach to analyze these phenomena, inspired by industrial symbiosis and symbiotic economics. The study is based on four cases of feminist initiatives and is analyzed qualitatively in a cumulative manner to develop a modeling of feminist symbiosis. This modeling constitutes a theorization of feminist symbiosis, relying on components, mechanisms, and properties. This allows us to define feminist symbiosis as a modality of inter-organizational commoning based on a diversity of actors engaging in mutually beneficial relationships for the benefit of a feminist common that they agree upon, which has (in)direct beneficiaries
Kumar, Vikas. "An empirical investigation of the linkage between dependability, quality and customer satisfaction in information intensive service firms". Thesis, University of Exeter, 2010. http://hdl.handle.net/10036/3011.
Texto completo da fonteAndoh-Baidoo, Francis Kofi. "An Integrative Approach for Examining the Determinants of Abnormal Returns: The Cases of Internet Security Breach and Ecommerce Initiative". VCU Scholars Compass, 2006. http://scholarscompass.vcu.edu/etd/1249.
Texto completo da fonteRariden, Brandi Scot. "Sedentary Time and the Cumulative Risk of Preserved and Reduced Ejection Fraction Heart Failure: from the Multi-Ethnic Study of Atherosclerosis". UNF Digital Commons, 2018. https://digitalcommons.unf.edu/etd/792.
Texto completo da fonteHarvey, A. "Cumulative environmental assessment in Tasmania : a catchment case study". Thesis, 2010. https://eprints.utas.edu.au/20764/1/whole_HarveyAndrew2010_thesis.pdf.
Texto completo da fonte"Cumulative Effects on Human Health within the Hydroelectric Sector: A Case Study of Manitoba Hydro". Thesis, 2015. http://hdl.handle.net/10388/ETD-2015-12-2360.
Texto completo da fonteHowery, Jocelyn. "Regional assessment of the effects of land use on water quality: A case study in the Oldman River Basin, Alberta". Master's thesis, 2010. http://hdl.handle.net/10048/1517.
Texto completo da fonteWater and Land Resources
Chung-Chun, Wang, e 王中君. "A Study of Cumulative Effects Caused by The Substantial Development in Local Environment -- A Case Study in Taoyuan Prefecture". Thesis, 2004. http://ndltd.ncl.edu.tw/handle/07299850777356594422.
Texto completo da fonte國立臺北大學
都市計劃研究所
92
[ABSTRACT] Taiwan has become a developed country through the past hundreds of years and had made what we call ‘economical miracle’. However, there are more environment problems growing while life on this island is getting more plentiful. People would easily ignore the limitation of the environmental resources during the progress of developing; therefore, under the long-term unrestricted over-exploitation, the influence to the environment grows. Once the amount of the influencing factors is over the threshold of the environmental carrying capacity, it would cause some serious problems to the nature. In the past decades, the authority concerns did the environmental management regarding the Environmental Impact Assessment (EIA), but it only focuses on individual projects, not on the interactive Cumulative Environmental Effects or on examining the possible relationship between them, for example, the affection to the tolerance of the environment. In this case, the truly important issues can not be projected, and the effect of environmental manipulation or management can not be elaborated. This study aims at the cumulative environmental effects from the man-mad e substantial development to the local environment, focusing on the development of Taoyuan Prefecture, trying to probe the possible cumulative effects under the expansion of the time-space domain with a dynamic view, in order to survey its development policy and related projects under the management of EIA and also clarify the existence and importance of cumulative effects. Main parts of the thesis are clarifying basic thoughts, discussing the relationships and analysis, and exemplifying real examples. The results of this study show the following five points. First, the logic the cumulative effects are rather reticulate and complicated, but not a unidirectional and simple research method and environmental managing system could control and clarify. Second, the local environmental effects emphasize on the cumulative effects of all the related individual cases within the region. An individual development would not sufficiently represent the effects to the whole environment. Third, the possible status of the local cumulative environment effects in the exploitation of the land is not only an EIA concerning the cumulative effects but also with a function of controlling and managing the quality of regional environment. Fourth, local cumulative environmental effects are directly related to the long-term environmental change depending on the individual development of each region. Fifth, the environmental management of the case in this study is very different from the contention of cumulative environmental effects. Obviously, the present development permission system lacks of respecting the cumulative environmental effects.
Cao, Zhirong. "New statistical methods to assess the effect of time-dependent exposures in case-control studies". Thèse, 2008. http://hdl.handle.net/1866/2850.
Texto completo da fonteBackground: Case-control studies are very often used by epidemiologists to assess the impact of specific exposure(s) on a particular disease. These exposures may be represented by several time-dependent covariates and new methods are needed to accurately estimate their effects. Indeed, conventional logistic regression, which is the standard method to analyze case-control data, does not directly account for changes in covariate values over time. By contrast, survival analytic methods such as the Cox proportional hazards model can directly incorporate time-dependent covariates representing the individual entire exposure histories. However, it requires some careful manipulation of risk sets because of the over-sampling of cases, compared to controls, in case-control studies. As shown in a preliminary simulation study, the optimal definition of risk sets for the analysis of case-control data remains unclear and has to be investigated in the case of time-dependent variables. Objective: The overall objective is to propose and to investigate new versions of the Cox model for assessing the impact of time-dependent exposures in case-control studies, and to apply them to a real case-control dataset on lung cancer and smoking. Methods: I identified some potential new risk sets definitions (the weighted Cox model and the simple weighted Cox model), in which different weights were given to cases and controls, in order to reflect the proportions of cases and non cases in the source population. The properties of the estimates of the exposure effects that result from these new risk sets definitions were investigated through a simulation study. Various aspects of exposure were generated (intensity, duration, cumulative exposure value). The simulated case-control data were then analysed using different versions of Cox’s models corresponding to existing and new definitions of risk sets, as well as with standard logistic regression, for comparison purpose. The different regression models were then applied to real case-control data on lung cancer. The estimates of the effects of different smoking variables, obtained with the different methods, were compared to each other, as well as to simulation results. Results: The simulation results show that the estimates from the new proposed weighted Cox models, especially those from the weighted Cox model, are much less biased than the estimates from the existing Cox models that simply include or exclude future cases. In addition, the weighted Cox model was slightly, but systematically, less biased than logistic regression. The real life application shows some greater discrepancies between the estimates of the proposed Cox models and logistic regression, for some smoking time-dependent covariates. Conclusions: The results suggest that the new proposed weighted Cox models could be an interesting alternative to logistic regression for estimating the effects of time-dependent exposures in case-control studies.
LI, DA YU, e 李大瑀. "Improvement of Work Process and Posture Cumulatively Musculoskeletal Disorders- a Case Study". Thesis, 2008. http://ndltd.ncl.edu.tw/handle/14791265102985303917.
Texto completo da fonteChen, Shin-an, e 陳信安. "A Case Study on Information Strategy of Enterprise to Cumulate Intellectual Capital - with EIP as an Apprach". Thesis, 2004. http://ndltd.ncl.edu.tw/handle/99974961575790025213.
Texto completo da fonte國立雲林科技大學
資訊管理系碩士班
92
To face and to participate in the global competition of the 21st century, enterprise must have luxury human resources and information technology. Nowadays, most industries are finding the ways to discover their potential through the information technology. Hence, discover the enterprise potential has been the goal for every industry. Today, the Enterprise Information Portal (EIP) plays an important role on the usage of the information and knowledge. According to the strategy target established by enterprise or department and information technology designs the exclusive EIP. This system is involved not only integration of inner enterprise resource, but also chain values of customers, employee and collaborative companies. The aim of this study explores intellectual capital process model, balanced score card (BSC) and the EIP information strategy, to help the enterprise accumulate intelligence capital in order to increase the enterprise value. Therefore, the EIP establishment of this research is based on each strategy of all departments, Key Success Factors (KSF) and Key Performance Indicators (KPI) made by managers, etc. Through the operation, we will invite the participant of each parties to join questionnaire in order to know how the information strategy may benefit the enterprise intelligence capital (IC). Resultly, although enterprises have EIP, but we still must adjust the system function and reevaluate lead-indicators and fall-behind-indicators gradually in order to gain the strategy target step by step. This also shows up the importance of comprehensive analysis and evaluation in KPI. The benefit on three perspectives of IC is construction capital, relationship capital and human capitals on order.