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Dissertations / Theses on the topic 'Survival curves'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Bradley, Jeremy. "A reversible jump Markov chain Monte Carlo approach to hazard estimation for competing risks data." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289357.

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2

Earle, Craig. "Non-small cell lung cancer, assessment of methodologies to combine survival curves in meta-analysis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ36688.pdf.

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3

Lourens, Spencer. "Bias in mixtures of normal distributions and joint modeling of longitudinal and time-to-event data with monotonic change curves." Diss., University of Iowa, 2015. https://ir.uiowa.edu/etd/1685.

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Estimating parameters in a mixture of normal distributions dates back to the 19th century when Pearson originally considered data of crabs from the Bay of Naples. Since then, many real world applications of mixtures have led to various proposed methods for studying similar problems. Among them, maximum likelihood estimation (MLE) and the continuous empirical characteristic function (CECF) methods have drawn the most attention. However, the performance of these competing estimation methods has not been thoroughly studied in the literature and conclusions have not been consistent in published re

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4

Zhang, Xin. "Development and validation of a nanodosimetry-based cell survival model for mixed high- and low-LET radiations." Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-05222006-140610/.

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Thesis (Ph. D.)--Mechanical Engineering, Georgia Institute of Technology, 2007.<br>Rahnema, Farzad, Committee Member ; Hertel, Nolan, Committee Member ; Wang, Chris, Committee Chair ; Radhakrishna, Harish, Committee Member ; Al-Sheikhly, Mohamad, Committee Member.

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5

Linton, Richard Howard. "Use of the Gompertz equation to model non-linear survival curves and predict temperature, pH, and sodium chloride effects for Listeria monocytogenes Scott A." Diss., This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-06062008-164544/.

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6

Montoya, Jose Fernando Guarín. "Eficiência do uso de medidor de atividade eletrônico na detecção de cio de vacas leiteiras de alta produção." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/11/11139/tde-10032008-074613/.

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Grandes avanços tem sido feitos para melhorar a produção de leite, mas estes avanços têm resultado numa queda geral da eficiência reprodutiva. Para se combater esta queda, tem sido seguidos principalmente três caminhos: um relacionado com a vaca, outro com as gametas e outro com o ambiente. Os problemas associados à vaca compreendem os problemas relacionados com a detecção de cio e os problemas hormonais que resultam em baixas taxas de concepção e aumento das mortes embrionárias precoces. Alternativas para melhorar a detecção de cio tem sido procuradas, dentre estas, os medidores de atividade

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7

Giolo, Suely Ruiz. "Variáveis latentes em análise de sobrevivência e curvas de crescimento." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/11/11134/tde-09052003-143659/.

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Em um contexto de analise de dados de sobrevivência univariados ou multivariados, dados de tempos de falha caracterizam-se pela possibilidade de poderem ser censurados. Embora comum na pratica, a censura impede o uso de alguns procedimentos estatisticos covencionais o que vem motivando, em especial apos a publicacao do artigo de Cox (1972), o desenvolvimento de metodos estatisticos nessa area. Uma linha de estudo recente e a de que, em algumas situacoes, a variavel resposta esteja sendo inuenciada por variaveis latentes, variaveis estas que sao usadas, em um sentido estatistico, para descrever

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8

Raminelli, Jaqueline Aparecida. "Métodos de adequação e diagnóstico em modelos de sobrevivência dinâmicos." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/11/11134/tde-03052016-164950/.

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A análise de dados de sobrevivência tem sido tradicionalmente baseada no modelo de regressão de Cox (COX, 1972). No entanto, a suposição de taxas de falha proporcionais assumida para esse modelo pode não ser atendida em diversas situações práticas. Essa restrição do modelo de Cox tem gerado interesse em abordagens alternativas, dentre elas os modelos dinâmicos que permitem efeito das covariáveis variando no tempo. Neste trabalho, foram revisados os principais modelos de sobrevivência dinâmicos com estrutura aditiva e multiplicativa nos contextos não paramétrico e semiparamétrico. Métodos gráfi

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9

Alawani, Nadrah. "Structural Characterization of Synthetic Polymers and Copolymers Using Multidimensional Mass Spectrometry Interfaced with Thermal Degradation, Liquid Chromatography and/or Ion Mobility Separation." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1386591497.

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10

Wang, Xiaohui. "Bayesian classification and survival analysis with curve predictors." [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1205.

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11

Moron, Michelle Mendes. "Efeito da ação combinada de radiação gama e campo elétrico estático em células humanas." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/87/87131/tde-21012009-095743/.

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Neste trabalho estudamos o efeito da exposição de células humanas à radiação ionizante e em associação a campos elétricos exógenos estáticos. A linhagem T47D de células de carcinoma ductal mamário foi irradiada com gamas no intervalo 0 8 Gy. A viabilidade celular da linhagem T47D exposta à radiação gama e campo elétrico estático (CEE) de 1.250 V/cm foi cerca de 12% inferior à viabilidade observada apenas com irradiação. Quando aplicado isoladamente por 24 e 72 horas o CEE não induziu toxicidade. A imunofluorescência realizada na linhagem normal MRC5 (fibroblasto de pulmão humano normal) quant

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12

Cesar, Raony Cassab Castro. "Estimação e comparação de curvas de sobrevivência sob censura informativa." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/45/45133/tde-03102013-103700/.

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A principal motivação desta dissertação é um estudo realizado pelo Instituto do Câncer do Estado de São Paulo (ICESP), envolvendo oitocentos e oito pacientes com câncer em estado avançado. Cada paciente foi acompanhado a partir da primeira admissão em uma unidade de terapia intensiva (UTI) pelo motivo de câncer, por um período de no máximo dois anos. O principal objetivo do estudo é avaliar o tempo de sobrevivência e a qualidade de vida desses pacientes através do uso de um tempo ajustado pela qualidade de vida (TAQV). Segundo Gelber et al. (1989), a combinação dessas duas informações, denomin

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13

Badre, Lara. "Les déterminants de la migration des compétences au Liban." Thesis, Sorbonne Paris Cité, 2015. http://www.theses.fr/2015USPCB172.

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Cette thèse porte sur les déterminants de la migration des compétences au Liban, dont l'objet principal est l'identification des facteurs et des risques associés à la migration chez les individus hautement qualifiés. La problématique se résume par la question suivante : À formation universitaire égale, quel diplômé devient-il migrant ? Afin de combler le manque de données sur le sujet, nous avons réalisé une enquête (en ligne) auprès des diplômés de la Lebanese American University et de l'Université Saint-Esprit de Kaslik, au Liban. Ces diplômés forment une pluralité et une mixité culturelle,

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14

Santos, Tiago Mendonça dos. "Avaliação do desempenho de modelos preditivos no contexto de análise de sobrevivência." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/45/45133/tde-03092013-111337/.

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Modelos estatísticos com objetivos preditivos são frequentemente aplicados como ferramentas no processo de tomadas de decisão em diversas áreas. Uma classe importante de modelos estatísticos é composta por modelos de análise de sobrevivência. Duas quantidades são de interesse nessa classe: o tempo até o instante do evento de interesse ou o status para um determinado instante de tempo fixado. Aplicações importantes desses modelos incluem a identificação de novos marcadores para certas doenças e definição de qual terapia será mais adequada de acordo com o paciente. Os marcadores utilizados podem

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15

Huff, Karleigh Rose. "Association of foodborne pathogens with Capsicum annuum fruit and evaluation of the fruit for antimicrobial compounds." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/77213.

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Hot peppers are gaining popularity in the United States as both a vegetable and a spice. In 2008, jalapeño peppers were involved in a multistate outbreak of Salmonella Saintpaul. This is the first outbreak implicating jalapeño as a vehicle for foodborne illness. Hot peppers contain many compounds thought to possess antimicrobial characteristics. This research was conducted to provide more information on the interactions of pathogenic bacteria and jalapeño peppers, as well as to identify properties of Capsicum annuum that affect bacterial survival, growth, and inhibition. Behavior of pathogens

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16

McNeil, Jennifer Michelle. "THE EVALUATION OF PATHOGEN SURVIVAL IN DRY CURED CHARCUTERIE STYLE SAUSAGES." UKnowledge, 2019. https://uknowledge.uky.edu/animalsci_etds/102.

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The objective of this study was to evaluate the survival of non-O157:H7 STEC, Salmonella spp., and S. aureus in dry fermented sausages. Chorizo and Landjager sausages were inoculated with individual bacterial cocktails and stuffed into natural casings. Temperature, relative humidity, pH, and water activity were monitored through fermentation, drying, and storage. Bacterial counts were determined by serial dilution and plated in triplicates on selective media. Plates were incubated at 37°C for 24 hours and colony forming units per gram (CFU/g) were observed. Results of the first study validate

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17

Cecchinato, Alessio. "Analysis of piglet survival in a dry-cured ham-producing crossbred line." Doctoral thesis, Università degli studi di Padova, 2009. http://hdl.handle.net/11577/3427332.

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Piglet death during the perinatal and lactation periods is one of the most detectable causes of reduced production efficiency in swine herds. and it has also been identified as an important welfare issue. Piglet mortality within the first three days of life is still a problem in intensive farms. Mortality rates vary between 10 and 20% depending on the housing system. Data used in this study were collected in the nucleus and sib testing program of the C21 Large White boar line (Gorzagri, Fonzaso, Italy) from 2000 to 2006. In the selection nucleus farm (Riese Pio X, Italy) the pure C21 boars are

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18

Meddis, Alessandra. "Inference and validation of prognostic marker for correlated survival data with application to cancer." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASR005.

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Les données de survie en grappes sont souvent recueillies dans le cadre de la recherche médicale. Elles sont caractérisées par des corrélations entre des observations appartenant à un même groupe. Ici, nous discutons des extensions a des données en grappes dans différents contextes : évaluation de la performance d'un biomarqueur candidat, et l’estimation de l'effet du traitement dans une méta-analyse sur données individuels (IPD) avec risques concurrents. La première a été motivée par l'étude IMENEO, une méta-analyse où l'intérêt portait sur la validité pronostique des cellules tumorales circu

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19

Pásztor, Bálint. "Analýza přežití v R." Master's thesis, Vysoká škola ekonomická v Praze, 2015. http://www.nusl.cz/ntk/nusl-202126.

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Survival analysis is a statistical discipline that analyzes the time to occurrence of certain events. The aim of this thesis is to describe the possibilities of survival analysis in the environment of statistical software R. Theoretical knowledge is applied to real data, parametric and nonparametric estimates of survival functions are evaluated by different methods and compared with each other. In the section focusing on nonparametric models Kaplan-Meier and Nelson-Aalen functions are described. Among the parametric estimates there were included well-known probability distributions, survival f

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20

McKenna, Frederick W. "Studies of cell survival curve fitting, effective doses for radiobiological evaluation in SBRT treatment techniques and the dependence of optical density growth in Gafchromic EBT film used in IMRT." Oklahoma City : [s.n.], 2009.

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21

Yu, Jianxiong. "Pavement Service Life Estimation And Condition Prediction." See Full Text at OhioLINK ETD Center (Requires Adobe Acrobat Reader for viewing), 2005. http://www.ohiolink.edu/etd/view.cgi?toledo1132896646.

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Dissertation (Ph.D.)--University of Toledo, 2005.<br>Typescript. "A dissertation [submitted] as partial fulfillment of the requirements of the Doctor of Philosophy degree in Engineering." Bibliography: leaves 69-74.

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22

Lee, Kyeong Eun. "Bayesian models for DNA microarray data analysis." Diss., Texas A&M University, 2005. http://hdl.handle.net/1969.1/2465.

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Selection of signi?cant genes via expression patterns is important in a microarray problem. Owing to small sample size and large number of variables (genes), the selection process can be unstable. This research proposes a hierarchical Bayesian model for gene (variable) selection. We employ latent variables in a regression setting and use a Bayesian mixture prior to perform the variable selection. Due to the binary nature of the data, the posterior distributions of the parameters are not in explicit form, and we need to use a combination of truncated sampling and Markov Chain Monte Carlo (MCMC)

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23

Marques, Inês Filipa Costa. "Mortality of elite athletes : an application to football players." Master's thesis, Instituto Superior de Economia e Gestão, 2018. http://hdl.handle.net/10400.5/18092.

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Mestrado em Actuarial Science<br>Os benefícios para a saúde resultantes da prática regular de exercício físico, de uma forma moderada, estão cientificamente comprovados. Contudo, quando se trata de uma abordagem sobre atletas profissionais, os benefícios deixam de ser uma clara evidência, surgindo por vezes sinais de alerta para os seus possíveis efeitos adversos. Para alimentar esta controvérsia, muito têm contribuído os estudos recentes que evidenciam anomalias e doenças cardiovasculares, bem como as frequentes lesões em atletas de elite. É neste contexto que surge o principal objectivo des

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24

Faria, Rute Quelvia de. "Avaliação dos modelos Probit e Logit com aplicação na longevidade de sementes de soja /." Botucatu, 2019. http://hdl.handle.net/11449/192673.

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Orientador: Maria Márcia Pereira Sartori<br>Resumo: O estudo da longevidade é uma ferramenta importante na análise da qualidade fisiológica em sementes. A modelagem da curva de sobrevivência em sementes permite a predição do seu período de vida, que baliza os mais variados estudos em conservação e tecnologia de sementes. O modelo de Probit foi inicialmente proposto como o modelo ideal para predição da longevidade das sementes, contudo, estudos têm reportado certa dificuldade de predição do modelo em diferentes condições de estresse e armazenagem a que as sementes são submetidas. A equação da v

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25

Borges, Patrick. "Novos modelos de sobrevivência com fração de cura baseados no processo da carcinogênese." Universidade Federal de São Carlos, 2012. https://repositorio.ufscar.br/handle/ufscar/4489.

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Made available in DSpace on 2016-06-02T20:04:52Z (GMT). No. of bitstreams: 1 4552.pdf: 1449121 bytes, checksum: 5d02e70bde72ea9ef3c257c80ceed1dc (MD5) Previous issue date: 2012-05-03<br>Financiadora de Estudos e Projetos<br>In this dissertation we propose new models for survival with cure fraction to describe the biological mechanism of the event of interest (cancer) in studies of carcinogenesis in the presence of competing causes latent independent or correlated. The formulation of new models is based on stochastic modeling of the occurrence of tumors through three stages: initiation of a t

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26

DiCasoli, Carl Matthew. "Bayesian regression methods for crossing survival curves." 2009. http://www.lib.ncsu.edu/theses/available/etd-08182009-140219/unrestricted/etd.pdf.

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27

CHEN, HSIN-YU, and 陳信宇. "A Testing Strategy for Two Crossing Survival Curves." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/29116667673441280794.

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碩士<br>國立中正大學<br>數學系統計科學研究所<br>104<br>In biomedical studies, two sample survival curves testing problem is commonly seen. The most popular approach is the log-rank test. However, the log-rank test may lead to misleading results when two survival curves cross each other. Moreover, it is difficult to find an appropriate method for all situations. Hence, we propose an approach, which is the extension of Fisher exact test and two strategies, Strategy 1 and Strategy 2. Then, we conduct simulations to investigate the power and type I error rate and compare the proposed methods with five competitive a

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28

Johnson, Jennifer Elizabeth. "The use of ��Co cell survival curves in BNCT research." Thesis, 1994. http://hdl.handle.net/1957/35210.

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The cell survival curve is the only means by which to both qualitatively and quantitatively assess morphologic alterations directly resulting from in vitro irradiation of the cell. A ��Co cell survival curve experiment has successfully demonstrated the response of the AtT-20 clone mammalian cell line to the effects of gamma rays. With the results of this experiment, a low LET radiation cell survival curve now exists to be used as a comparative upon the completion of BNCT cell survival curves.<br>Graduation date: 1995

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29

"Non-parametric Bootstrap Estimator of survival curves for interval censored entomological data." Tese, BIBLIOTECA CENTRAL DA UFLA, 2006. http://bibtede.ufla.br/tede//tde_busca/arquivo.php?codArquivo=181.

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30

Monteiro, Mariana dos Santos. "Modeling TTRFAP Age of Onset survival curves using Mixture Density Networks, Subgroup Discovery and Sensitivity Analysis." Master's thesis, 2021. https://hdl.handle.net/10216/137974.

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31

"Power, extension and multiple comparisons for the Lin and Wang test for overall homogeneity of Weibull survival curves." Tulane University, 2007.

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32

Schmitz, Peter. "Breaching the platinum cost curve: cost curve selection and development, marginal production survival." Thesis, 2019. https://hdl.handle.net/10539/29430.

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A research report submitted in partial fulfilment of the requirements for the degree of Masters of Science in Engineering to the Faculty of Engineering and the Built Environment, University of the Witwatersrand, Johannesburg, 2019<br>The report considers survival mechanisms used by Platinum Group Metal (PGM) producers over the period 2008 to 2017 when mining operations were considered marginal for an extended period. Various methods to build cost curves for the PGM industry were tested, with co-product costing, inclusive of sustaining capital, selected. Industry cost curves were

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33

Tien, Wan-Ting, and 田婉廷. "Receiver Operating Characteristic Curve Analysis for Cure Survival Data." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/07218155810473806316.

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碩士<br>國立臺灣大學<br>數學研究所<br>102<br>Benefited from the advanced technology and medical science, more and more effective treatments for different kinds of incurable diseases have been invented. For instance, patients will not die of cancer if the radiation kills all cancer cells, so there are plenty of right-censored data at the end of the observation period. The Kaplan-Meier type estimator of survival curve shows a long and stable plateau in the tail. A characteristic of such survival data is that the survival function does not converge to zero as time goes to infinity. It is called "cure survival

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34

St-Louis, Sophie. "L'Inventaire des risques et des besoins liés aux facteurs criminogènes (IRBC) : évaluation des propriétés métriques de l'instrument." Thèse, 2015. http://hdl.handle.net/1866/13770.

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L’Inventaire des risques et des besoins liés aux facteurs criminogènes (IRBC) est un instrument utilisé depuis le début des années 1990 pour évaluer les risques de récidive des jeunes contrevenants québécois. Il est le produit d’une collaboration du Québec avec l’Ontario, survenue dans le cadre de travaux de recherche effectués sur les instruments d’évaluation du risque de récidive des jeunes contrevenants. L’IRBC est donc le seul instrument précisément conçu pour évaluer les risques de récidive des jeunes contrevenants québécois et il n’a jamais fait l’objet d’une démarche visant à tester sa

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Yuan, Yan. "Prediction Performance of Survival Models." Thesis, 2008. http://hdl.handle.net/10012/3974.

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Statistical models are often used for the prediction of future random variables. There are two types of prediction, point prediction and probabilistic prediction. The prediction accuracy is quantified by performance measures, which are typically based on loss functions. We study the estimators of these performance measures, the prediction error and performance scores, for point and probabilistic predictors, respectively. The focus of this thesis is to assess the prediction performance of survival models that analyze censored survival times. To accommodate censoring, we extend the inverse proba

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Lo, Jo-Lin, and 羅若玲. "The Cross-over Survival curve of Neoadjuvant Chemoradiation in Locally Advanced Esophageal Cancer." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/49847457074382787486.

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碩士<br>臺灣大學<br>流行病學研究所<br>98<br>Although the concept and method of treating cancer have substantial improvement in recent years, there is limited improvement in treatment of esophageal cancer. Radical esophagectomy is still the mainstay for the resectable esophageal cancer, which provided the chance for long-term survival and better local control rate. However, the five-year survival is still low for esophagectomy, which is only 0~10%. Current trend of treatment in locally advanced esophageal cancer is tri-modality treatment (neoadjuvant chemoradiotherapy and surgery). Over ten randomized cont

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37

Rousseau, Katrina. "Les instruments actuariels d'évaluation du risque de récidive : applicables aux auteurs d'infractions sexuelles ayant une déficience intellectuelle?" Thèse, 2016. http://hdl.handle.net/1866/16102.

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L’intérêt porté à l’évaluation du risque de récidive chez les délinquants ayant une déficience intellectuelle (DI) a notablement augmenté depuis les 10 dernières années. D’ailleurs, certains croient que les instruments utilisés pour mesurer le risque chez les auteurs d’infractions sexuelles neurotypiques peuvent s’appliquer aux auteurs d’infractions sexuelles ayant une DI tandis que d’autres appuient l’idée d’utiliser et de développer des mesures actuarielles propres à ces individus. Trois objectifs ont été posés pour tenter d’éclaircir ces deux visions, soit 1) Comparer les taux de récidive e

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38

TSENG, YING-WEI, and 曾英瑋. "The Estimation of Survival Curve in the Jolly-Seber model Based on Similarity Indice." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/45873672798535514629.

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碩士<br>逢甲大學<br>統計與精算所<br>97<br>The applicative device of the similarity indices in estimating survival curve in the Jolly-Seber model through open capture-recapture experiment is the main purposes of this proposal. Survival curve is the trend line of the survival rate for a long time, different from the survival rate in Jolly-Seber models. Similarity indices are widely used in the ecological study. Differ from the similarity indices of any two communities, the similarity indices in this proposal are used to derive the estimation of any two strata in different sampling. In open capture-recapture

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39

Šlegerová, Lenka. "Hodnocení zdravotní technologie (HTA): léčba karcinomu prsu, případová studie ČR." Master's thesis, 2019. http://www.nusl.cz/ntk/nusl-392652.

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Health technology assessment: case study on breast carcinoma treatment in the Czech Republic Bc. Lenka Šlegerová January 4, 2019 Abstract This thesis proposes an original method for assessing total costs of med- ical treatment. It defines the semi-Markov model with four states that are associated with specific costs of the treatment, and not with patients' health statuses. This method is applied to individuals' treatment data drawn from the Czech clinical practice in the treatment of the metastatic HER2+ breast cancer. The aim is to assess the cost-effectiveness of adding medication per- tuzum

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Jetté, Manon. "L’évaluation du risque en fonction de l’âge : l’efficacité de l’évaluation structurée dans la prédiction de la récidive." Thèse, 2010. http://hdl.handle.net/1866/5413.

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Huit instruments d’évaluation du risque ont été appliqués sur 580 délinquants sexuels. Il s’agit du VRAG, du SORAG, du RRASOR, de la Statique-99, de la Statique-2002, du RM-2000, du MnSORT-R et du SVR-20. De plus, les sujets ont été cotés sur la PCL-R, qui vise la mesure de la psychopathie, mais qui a fait ses preuves en matière de prédiction de la récidive (Gendreau, Little, et Goggin, 1996). En vue de mesurer l’efficacité de ces instruments et de la PCL-R, une période de suivi de 25 ans a été observée. Aussi, une division de l’échantillon a été faite par rapport à l’âge au moment de la libér

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(7451486), Gabriella Mendes Candido De Oliveira. "Modeling Microbial Inactivation Subjected to Nonisothermal and Non-thermal Food Processing Technologies." Thesis, 2019.

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<p>Modeling microbial inactivation has a great influence on the optimization, control and design of food processes. In the area of food safety, modeling is a valuable tool for characterizing survival curves and for supporting food safety decisions. The modeling of microbial behavior is based on the premise that the response of the microbial population to the environment factors is reproducible. And that from the past, it is possible to predict how these microorganisms would respond in other similar environments. Thus, the use of mathematical models has become an attractive and relevant tool in

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Silva, Susana Maria Pereira da. "Análise de sobrevivência aplicada à educação." Master's thesis, 2021. http://hdl.handle.net/10400.13/3982.

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Esta dissertação assentou em investigar o percurso escolar dos alunos dos quatro Cursos Técnicos Superiores Profissionais (CTeSP) (Agricultura Biológica, Contabilidade e Fiscalidade, Redes e Siste mas Informáticos e Guias da Natureza) da Escola Superior de Tecnologias e Gestão da UMa, entre os anos letivos 2015/2016 e 2019/2020. Numa primeira vertente foi feita uma análise descritiva dos dados com base em indicadores de três dimensões: social, pessoal e escolar. Em seguida, aplicou-se a teoria da Análise de Sobrevivência ao tempo que os alunos levam até concluir o curso. Da análise univa

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