Bibliografías temáticas / Modelo TAR

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Literatura académica sobre el tema "Modelo TAR"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 1 de febrero de 2022

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Artículos de revistas sobre el tema "Modelo TAR"

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Zhang, Hanwen. "Estimación de los modelos TAR cuando el proceso del ruido sigue una distribución t". Comunicaciones en Estadística 4, n.º 2 (31 de diciembre de 2011): 109. http://dx.doi.org/10.15332/s2027-3355.2011.0002.02.

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En este artículo se consideran los modelos TAR cuando el proceso de ruido sigue una distribución t. Se desarrolla un procedimiento bayesiano para la estimación de estos modelos cuando el modelo está identificado, es decir, cuando se conocen los parámetros estructurales. El método consiste en encontrar las densidades condicionales a posteriori de los parámetros e implementar un muestreador de Gibbs. Mediante un ejemplo simulado se encuentra que con esta metodología se logran buenas estimaciones de los parámetros.
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Rodríguez-Benavides, Domingo, Miguel Ángel Mendoza-González y Francisco Venegas-Martínez. "¿Realmente existe convergencia regional en México? Un modelo de datos-panel TAR no lineal". Economía Sociedad y Territorio, n.º 50 (17 de diciembre de 2015): 197. http://dx.doi.org/10.22136/est0502016763.

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Este trabajo analiza la hipótesis de convergencia regional en México para el periodo 1970-2012 por medio de un modelo de crecimiento no lineal. La metodología empleada combina tres enfoques: el modelo panel autorregresivo de umbral (tar, threshold autorregresive), las pruebas de raíces unitarias en panel y el cálculo de los valores críticos a través de simulación bootstraping. Los resultados empíricos del modelo no lineal aplicado al pib per cápita de distintos grupos de estados de la república mexicana sugieren que el modelo propuesto es superior al modelo lineal y muestran evidencia de convergencia parcial y absoluta para el grupo de las 11 entidades “más ricas” en ciertos subperiodos. Sorprendentemente, al considerar el promedio de dichas entidades y combinarlo con el resto de los estados, no se encontró evidencia de convergencia. Asimismo, cuando se compararon la totalidad de éstas, no se pudo rechazar la hipótesis de divergencia. Estos resultados muestran que la convergencia está presente en grupos de entidades con características similares y en periodos específicos, lo cual refuerza la idea de que en México existen los clubes de convergencia.
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Lorenzo-Valdes, Arturo. "Confianza de los inversionistas como determinante en el mercado accionario mexicano mediante un modelo TAR-EGARCH". Análisis Económico 35, n.º 88 (1 de enero de 2020): 147–67. http://dx.doi.org/10.24275/uam/azc/dcsh/ae/2020v35n88/lorenzo.

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Formiga, Andréa Soares de Castro, Mardonio Rique Dias y Ana Alayde Werba Saldanha. "Aspectos psicossociais da prevenção do infarto: construção e validação de um instrumento de medida". Psico-USF 10, n.º 1 (junio de 2005): 31–40. http://dx.doi.org/10.1590/s1413-82712005000100005.

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Com base na Teoria da Ação Racional (TAR) como um bom recurso para a explicação de uma série de comportamentos ligados à saúde, procurou-se investigar a intenção de pessoas, incluindo infartadas, em praticar a caminhada, no mínimo, três vezes por semana. Para isso, foi construído, validado e aplicado um instrumento composto de 22 itens, numa amostra de 302 pessoas da população em geral, para verificar a intenção de exercerem tal comportamento. Os resultados demonstraram que o Modelo da TAR é capaz de predizer o comportamento em questão. Uma análise de Regressão Múltipla explicou 42% da variância obtida na intenção comportamental, mediante crenças normativas gerais, atitude e crenças comportamentais gerais, como determinantes para o comportamento de caminhar, no mínimo, três vezes por semana. As variáveis de natureza normativa foram as responsáveis pela maior parte da variância explicada, apresentando, desta forma, a sua importância para intervenções visando à adoção do comportamento investigado.
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Rodríguez Benavides, Domingo, Miguel Ángel Mendoza y Ignacio Perrotini. "ANÁLISIS NO LINEAL DE LA CONVERGENCIA REGIONAL EN AMÉRICA LATINA, 1950-2010: UN MODELO PANEL TAR". Problemas del Desarrollo 46, n.º 182 (julio de 2015): 119–42. http://dx.doi.org/10.1016/j.rpd.2015.06.004.

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Brandão, Marcelo Moll, Larissa Alves Sincorá y Arthur França Sarcinelli. "A percepção de valor do ambiente eletrônico de agências de turismo e seu impacto na decisão de compra". Revista Brasileira de Pesquisa em Turismo 15, n.º 2 (14 de marzo de 2021): 1977. http://dx.doi.org/10.7784/rbtur.v15i2.1977.

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O presente artigo visa compreender como que a percepção de valor no contexto de e-commerce turístico influencia na intenção de compra de forma indireta, dado que a confiança e atitude do consumidor impactam no seu comportamento online. O modelo teórico utilizado foi inspirado nos antecedentes da confiança por Beldad, De Jong e Steehouder (2010a), no modelo de confiança em agências de turismo online (Agag & El-masry, 2017), no modelo de aceitação tecnológica (TAM) e na teoria da ação racional (TAR), aplicado ao contexto de varejo de serviços de turismo. Os resultados, por sua vez, confirmam a mediação da atitude na relação entre confiança e intenção de compra, consistente com os números de mercados de países com baixa educação para o uso da internet e problemas de segurança para transações online. Os resultados também possibilitaram propor a mensuração da percepção de valor que considera dimensões da aceitação tecnológica. Assim, o impacto do construto confiança na intenção de compra é melhor explicado pelo caminho indireto via atitude. Logo, indivíduos que confiam no website de agências de turismo online possuem maiores intenções de contratar serviços nesse ambiente de loja virtual quando possuem atitudes positivas perante ao referido contexto de varejo.
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Lu, Yongtao, Yiqian He, Weiteng Li, Zhuoyue Yang, Ruifei Peng y Li Yu. "Comparison of Biomechanical Performance of Five Different Treatment Approaches for Fixing Posterior Pelvic Ring Injury". Journal of Healthcare Engineering 2020 (22 de enero de 2020): 1–11. http://dx.doi.org/10.1155/2020/5379593.

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Background. A large number of pelvic injuries are seriously unstable, with mortality rates reaching 19%. Approximately 60% of pelvic injuries are related to the posterior pelvic ring. However, the selection of a fixation method for a posterior pelvic ring injury remains a challenging problem for orthopedic surgeons. The aim of the present study is to investigate the biomechanical performance of five different fixation approaches for posterior pelvic ring injury and thus provide guidance on the choice of treatment approach in a clinical setting. Methods. A finite element (FE) model, including the L3-L5 lumbar vertebrae, sacrum, and full pelvis, was created from CT images of a healthy adult. Tile B and Tile C types of pelvic fractures were created in the model. Five different fixation methods for fixing the posterior ring injury (PRI) were simulated: TA1 (conservative treatment), TA2 (S1 screw fixation), TA3 (S1 + S2 screw fixation), TA4 (plate fixation), and TA5 (modified triangular osteosynthesis). Based on the fixation status (fixed or nonfixed) of the anterior ring and the fixation method for PRI, 20 different FE models were created. An upright standing loading scenario was simulated, and the resultant displacements at the sacroiliac joint were compared between different models. Results. When TA5 was applied, the resultant displacements at the sacroiliac joint were the smallest (1.5 mm, 1.6 mm, 1.6 mm, and 1.7 mm) for all the injury cases. The displacements induced by TA3 and TA2 were similar to those induced by TA5. TA4 led to larger displacements at the sacroiliac joint (2.3 mm, 2.4 mm, 4.8 mm, and 4.9 mm), and TA1 was the worst case (3.1 mm, 3.2 mm, 6.3 mm, and 6.5 mm). Conclusions. The best internal fixation method for PRI is the triangular osteosynthesis approach (TA5), followed by S1 + S2 screw fixation (TA3), S1 screw fixation (TA2), and plate fixation (TA4).
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Berriozabal Torrecilla, Alaia. "Nuevos modelos organizativos para la Transformación Social". Gizarte Ekonomiaren Euskal Aldizkaria - Revista Vasca de Economía Social, n.º 15 (1 de febrero de 2019): 181–211. http://dx.doi.org/10.1387/reves.20520.

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Vivimos una época marcada por importantes retos sociales y medioambientales que requieren de respuestas colectivas y nuevos marcos de referencia para la Transformación Social. Desde el punto de vista empresarial, cada vez son más las empresas que deciden incorporar criterios sociales y medioambientales para paliar los efectos negativos que estas mismas generan sobre el entorno. A lo largo de las últimas décadas las empresas han adoptado diferentes estrategias siendo la Responsabilidad Social Corporativa (RSC) la más extendida. Además de la RSC, en los últimos años están surgiendo otras iniciativas que podrían resul-tar más interesantes desde el punto de vista de la Transformación Social, como el modelo organizativo de las organizaciones TEAL, que será el objeto de estudio en el presente trabajo, así como el caso práctico de ner group, una organización acorde con los principios básicos de este nuevo modelo.
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Damasceno Jr., Jose Benedito y Marcirio Silveira Chaves. "EXPLORANDO O USO DO MODELO TARGET: A GESTÃO DE LIÇÕES APRENDIDAS NA ÁREA DE PROJETOS EM UMA INSTITUIÇÃO GOVERNAMENTAL DE SEGURANÇA PÚBLICA". Revista Alcance 24, n.º 1 (11 de mayo de 2017): 147. http://dx.doi.org/10.14210/alcance.v24n1.p147-160.

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Cada vez mais o tema lições aprendidas em projetos vem se fazendo presente, haja vista a sua abordagem nas instituições e a crescente produção de pesquisas acadêmicas. Modelos para Gestão de Lições Aprendidas (GLA) vêm sendo desenvolvidos, apoiados em processos e ferramentas como os softwares sociais (e.g. Wikis, Blogues e Microblogues). Considerando o problema do desuso ou do desconhecimento de processos e ferramentas para GLA nas instituições, esta pesquisa empírica tem como objetivo validar um modelo de GLA em uma instituição governamental de segurança pública. O modelo foi instanciado em uma plataforma Wiki. Este trabalho usa o paradigma de pesquisa Design Science Research (DSR) e o método de pesquisa Technical Action Research (TAR). Os resultados sugerem incrementos ao modelo instanciado na relação processos de lições aprendidas por fase do ciclo de vida do projeto, enquanto a utilidade e a facilidade no uso da Wiki foram reconhecidas pelos envolvidos que, também, consideram haver efeito positivo na eficiência e na eficácia nos processos e nas atividades do projeto. A contribuição para a teoria ocorre à medida que se confirma que investir na adoção de técnicas e ferramentas em projetos é fundamental e que é possível inovar na segurança pública brasileira por meio das boas práticas de projetos. Já a contribuição para a prática se apresenta na adoção de uma sistemática para GLA em projetos inéditos naquela instituição.
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Paredes Suzarte, Paola. "La prueba PISA: una mirada alternativa desde la Teoría del Actor-Red". Summa Psicológica 12, n.º 1 (10 de julio de 2015): 9–16. http://dx.doi.org/10.18774/448x.2015.12.234.

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En el marco de la proliferación de las evaluaciones estandarizadas, inscritas en lo que ha sido conceptualizado por la literatura como políticas de accountability o de rendición de cuentas, se ofrece por medio de este artículo una línea de pensamiento y discusión alternativa sobre la prueba PISA. Utilizando como enfoque la Teoría del Actor-Red (TAR) de Bruno Latour, se presentan ejercicios de traslación epistémica de la prueba PISA desde un modelo de pensamiento positivista moderno, a uno materialista pragmático en el que se privilegia una descripción constructivista y analítica de los componentes que la constituyen. En base al seguimiento y análisis de noticias sobre la prueba PISA desplegadas en diarios electrónicos en Chile y Argentina, más la revisión de fuentes secundarias, se exponen algunas de las controversias suscitadas en torno a la evaluación y se discute sobre su posible impacto en nuestras percepciones sobre educación y calidad. También se problematiza el carácter neutral y objetivo de la prueba, y se levanta la pregunta acerca de su posible agencia en la cristalización de las relaciones de centro-periferia entre países que, en el marco del enfoque de la TAR, tiene sentido explorar.
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Tesis sobre el tema "Modelo TAR"

1

Chun, Winston Seung Hyun. "Estrutura a termo de taxa de juros brasileira: investigando a presença de não linearidade". reponame:Repositório Institucional do FGV, 2011. http://hdl.handle.net/10438/8585.

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Esta dissertação tem com objetivo avaliar uma das implicações da hipótese de expectativas para a estrutura a termo de taxa de juros brasileira. Utilizando testes lineares tradicionais e através da reprodução de testes não lineares TAR de Enders e Granger (1998) e ESTAR Kapetanios e Shin (2003) conclui-se que a hipótese de expectativas não é totalmente válida para a ETTJ do Brasil, além disso, são encontradas evidências de não linearidade nas séries de spreads que demandam mais pesquisa sobre o assunto.
This dissertation has the aim to evaluate one of the implications of expectation hypothesis in Brazilian term structure of interests. Using traditional linear tests and through the reproduction of nonlinear Threshold Autoregressive (TAR) tests of Enders and Granger (1998) and Exponential Smooth Transition Autoregressive (ESTAR) of Kapetanios and Shin (2003) the conclusion is that expectation hypothesis is not totally valid for Brazil, besides that, some evidences of non-linearity in spreads series were found then more research is needed on the subject.
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Oliveira, Aline de. "Variáveis que influenciam o consumidor em relação ao uso dos chatbots". Master's thesis, Instituto Superior de Economia e Gestão, 2018. http://hdl.handle.net/10400.5/18164.

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Mestrado em Marketing
As empresas frequentemente buscam moldar a evolução das aplicações tecnológicas e estão cada vez mais utilizando chatbots e inteligência artificial para se comunicar com os clientes, resolver dúvidas, problemas de atendimento, procurar informações, comprar produtos e serviços, reservar hotéis, fazer perguntas às empresas, entre outros. Sendo assim, o objetivo desta pesquisa consiste em explorar diferentes variáveis externas e do Modelo TAM para ver se influenciam o consumidor em relação ao uso dos chatbots pelas empresas. Para coletar os dados quantitativos foi realizado um questionário online e 235 respostas foram analisadas com o programa SPSS. De 16 hipóteses, obteve-se 12 hipóteses confirmadas e aceitas, sendo possível afirmar que os consumidores estão dispostos a adotar e utilizar chatbots para se comunicar com as empresas.
Companies often seek to shape the evolution of technology applications and are increasingly using chatbots and artificial intelligence to communicate with customers, solve questions, service issues, look for information, buy products and services, book hotels, ask business questions. Therefore, the objective of this research is to explore different external variables and the Model TAM that influence the consumer in relation to the use of chatbots by companies. To collect the quantitative data, an online questionnaire was performed and 235 responses were analyzed with the SPSS program. Of the 16 hypotheses, 12 hypotheses were confirmed and accepted, and it is possible to affirm that consumers are willing to adopt and use chatbots to communicate with companies.
info:eu-repo/semantics/publishedVersion
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Santos, Alan Vasconcelos. "AnÃlise de modelos de sÃries temporais para a previsÃo mensal do imposto de renda". Universidade Federal do CearÃ, 2003. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=1463.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico
O presente trabalho objetiva realizar previsÃes mensais da sÃrie do imposto de renda para o perÃodo de 2002. A metodologia empregada para alcanÃar essa finalidade consiste na utilizaÃÃo da tÃcnica de combinaÃÃo de previsÃes. Especificamente, combinam-se os resultados de previsÃo advindos de trÃs mÃtodos diferentes: tÃcnica do alisamento exponencial, metodologia de Box-Jenkins (modelos ARIMA) e modelos vetoriais de correÃÃo de erro. Obtida a previsÃo final, compara-se este resultado com os valores reais observados da sÃrie do imposto de renda para o ano de 2002 a fim de verificar o desempenho e a acurÃcia do modelo.
The main objective of this work was to generate predictions, at a monthly frequency, from 1990 to 2001, of income tax revenue. The methodology used was the one of forecast combining. Specifically, exponential smoothing, an ARIMA and VAR with error correction models were pooled to obtain final prediction. Ex-post forecast errors were used to test the performance of the model. Results indicated that combining performs better than individual models, and errors are in an acceptable interval for this type of prediction.
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Liu, S. "Plasma gas cleaning processes for the conversion of model tar from biomass gasification". Thesis, University of Liverpool, 2018. http://livrepository.liverpool.ac.uk/3021510/.

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Pereira, Josà Ribamar. "PrevisÃo de receita do ISSQN de Teresina: uma abordagem com sÃries temporais". Universidade Federal do CearÃ, 2007. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=1729.

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Universidade Federal do CearÃ
Neste estudo, pretende-se determinar um modelo de previsÃo mensal de curto prazo para a receita de ISSQN de Teresina. Para evidenciar este propÃsito servirÃo de suporte matemÃtico os modelos VAR e Box-Jenkins, a partir de sÃries histÃricas concernentes ao perÃodo de janeiro de 2002 a dezembro de 2006. ApÃs a estimaÃÃo dos modelos, propÃe-se um diagnÃstico para mensurar a capacidade inicialmente preditiva. Dentre os modelos manipulados temos o SARIMA (12,1,1)(0,0,12) o qual antecipadamente demonstrou ser mais robusto em relaÃÃo ao modelo VAR. Oportunamente à discussÃo de outras nuances internas ou à margem do trabalho, conclui-se que, o modelo com sÃries temporais, em funÃÃo de sua capacidade preditiva, pode se transformar em um instrumental consistente com vistas ao incremento da arrecadaÃÃo do ISSQN da Prefeitura de Teresina.
In this study, It is intended to determine a short-run monthly forecasting model for the ISSQN of Teresina city. In order for this purpose to be clear, the models VAR and Box-Jenkins will be of mathematical support, from historical series concerning the period of January 2002 to December 2006. After the estimation of the models, it is proposed a diagnosis to measure the initially predictive capacity. Among the models manipulated, we have SARIMA (12,1,1)(0,0,12), which has resulted most robust in advance concerning the VAR model. Propitiously to other internal or marginal nuances to the study, it is concluded, preliminarily, that the time series model due to its predictive capacity can become a consistent instrument targeting at the augment of the ISSQN collecting of Teresina City Administration.
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Keval, Luis Amirali Dias. "Management consulting labs: project TAP". Master's thesis, NSBE - UNL, 2011. http://hdl.handle.net/10362/10082.

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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Management from the NOVA – School of Business and Economics
The purpose of this study was to investigate the impact on revenues and to elaborate some high level strategies for TAP given future full establishment of a recent competitor of the commercial airline industry in Lisbon. The analysis was done through an analytical model to determine past/present impact and from that to stipulate the future impact on revenues. Several surveys were conducted to identify passengers’ key decision factors in order to establish reasons for churn and retention. Based on the result five strategic guidelines were designed to minimize the impact on revenues.
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Sridhar, Rajesh. "Chemistry models for major gas species estimation and tar prediction in fluidized bed biomass gasification". Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104564.

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Thesis: S.M., Massachusetts Institute of Technology, Computation for Design and Optimization Program, 2016.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 133-140).
The present work deals with the process of fluidized bed biomass gasification (FBBG), which is the thermochemical conversion of solid biomass into combustible synthetic gas using a fluidized bed. Fluidized bed gasifiers encounter high tar concentrations at the gasifier outlet necessitating expensive downstream cleaning equipment. Apart from the complex chemical pathways involved, tar production is also strongly dependent on the transport processes occurring inside the gasifier. Hence, the development of a detailed model to predict the variation of tar production under different operating conditions needs to include two important considerations: a comprehensive chemical kinetic sub-model and a detailed hydrodynamic sub-model. However, due to the huge computational expense associated with such a detailed simulation coupling the complex chemistry and hydrodynamics, there is a need to develop simplified models on both fronts. The first part of this work presents a detailed discussion on the chemistry models for biomass gasification: after introducing the existing state-of-the-art reaction mechanisms (both detailed and compact), two new global chemistry models, incorporating a global primary tar cracking reaction, for air-blown gasification and steam-blown gasification conditions are developed. The major gas species and total tar concentrations predicted using the global models in reactor network simulations of the gasifiers are compared with the corresponding predictions obtained using the detailed CRECK mechanism for biomass gasification, as well as with the available experimental observations. On the hydrodynamics front, an improved reactor network model based on the two-phase theory has been developed to better capture the mixing inhomogeneities in the bubbling fluidized bed, including mass transfer considerations between the bubble and emulsion phases. Finally, the predictions of various tar class concentrations and major gas species concentrations, obtained using the improved reactor network model in conjunction with the detailed CRECK kinetic reaction mechanism, for both air-blown gasification and steam gasification, are presented. Key words: Biomass gasification, Fluidized beds, Chemical reactor network modeling, chemical kinetics, chemistry mechanism reduction, Global chemistry model
by Rajesh Sridhar.
S.M.
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Eckardt, Sanna y Johanna Knief. "Vem tar hand om barnet? : En studie av mäns uttag av ersättning för vård av sjukt barn". Thesis, Uppsala University, Department of Economics, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7015.

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Ett av målen för svensk familjepolitik är att utjämna den sneda fördelningen i uttaget av familjeförsäkringen. Inom familjeförsäkringen hittas segmentet för den tillfälliga föräldrapenningen och i denna, ersättningen för vård av sjukt barn. Två modeller, med olika antal variabler, används för att åskådliggöra sambandet mellan andel barn som bor i traditionell kärnfamilj och andel nettodagar män tar ut för vård av sjukt barn. Resultatet påvisar att uttaget av nettodagar könen emellan är jämnare fördelat inom gruppen traditionell kärnfamilj än för den totala gruppen föräldrar. I Sverige lever idag omkring 78 procent av barn i åldern ett till elva år inom den traditionella kärnfamiljen.

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Olofsson, Hannah y Viktor Nordkvist. "En ledarskapsmodell på ett företag : Hur gemensam kompetens tar sig uttryck". Thesis, Uppsala universitet, Institutionen för pedagogik, didaktik och utbildningsstudier, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414377.

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Studien hade som syfte att studera hur ledare inom ett specifikt företag uppfattar sitt eget ledarskap vilket analyseras utifrån ett teoretiskt perspektiv om värdebaserat ledarskap. Syftet operationaliseras genom att behandla frågeställningarna hur företagets ledarna uppfattar sitt eget ledarskap utifrån ledarskapsmodellen på företaget samt hur värdebaserat ledarskap tar sig i uttryck på företaget. Studiens empiri samlades in genom kvalitativa, internetunderstödda, semistrukturerade intervjuer. Urvalet bestod av åtta ledare på företaget och var i första steget ett bekvämlighetsurval som transformerades till ett snöbollsurval. Företaget är en del av en global koncern inom persontransport där vi studerade verksamheten i Sverige. Intervjuerna transkriberades och materialet kodades utifrån temana egen uppfattning av ledarskap, ledarskapsmodellen generellt, specifika förmågor från ledarskapsmodellen och användningsområden för ledarskapsmodellen. Tematiseringen i resultat och analys utgick från studiens två frågeställningar. Resultatet visade att ledarnas egna uppfattningar om sitt ledarskap överensstämde i stort med egenskaperna i ledarskapsmodellen samt att värdebaserat ledarskap framförallt tar sig uttryck genom självutveckling och medarbetarsamtal. Empirin påvisade att ledarskapsmodellen påverkar beteenden hos ledarna eftersom respondenternas utsagor om sitt eget ledarskap härleds till egenskaperna i modellen. Värdebaserat ledarskap tar sig uttryck på företaget genom företagets ledarskapsmodell, ledarnas utsagor och hur de använder sig av modellen i olika kontexter.
The purpose of this study was to examine how leaders within a specific company perceive their own leadership, which is analyzed from a theoretical perspective on values-based leadership. The purpose is operationalized by addressing the issues of how the company's leaders perceive their own leadership based on the leadership model of the company and how values-based leadership manifests itself within the company. The study's empirical data were collected through qualitative, internet-supported, semi-structured interviews. The selection consisted of eight managers at the company and was in it’s first step a convenience sampling that transformed into a chain sampling. The company is part of a multinational corporate group active in the passenger transport industry where the study focused on the business in Sweden. The interviews were transcribed, and the material was coded on the basis of the managers perceptions of leadership, the leadership model in general, specific traits in the leadership model, and areas of use for the leadership model. The thematization of results and analysis was based on the study's two issues. The result showed that the managers own perceptions of their leadership were in line with the characteristics of the leadership model and that values-based leadership was expressed mainly through self-development and staff appraisal. The data demonstrated that the leadership model influences the behavior of leaders because leaders' statements about their own leadership are derived from the characteristics of the model. Values-based leadership is expressed by the company through the company's leadership model, leaders' statements and how they use the model in different contexts.
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Penna, Christiano Modesto. "Crescimento econÃmico via investimentos em capital: evidencias empÃricas para o Brasil". Universidade Federal do CearÃ, 2007. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=1394.

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Neste trabalho fica evidente que existe uma relaÃÃo nÃo linear entre a taxa de formaÃÃo bruta de capital fixo e a taxa de crescimento econÃmico na economia brasileira e, devido a essa nÃo linearidade, o teste de prediÃÃes do modelo AK e neoclÃssico proposto por Jones (1995) passa a ser inconclusivo, pois existe espaÃo para as prediÃÃes de ambos os modelos. Nosso modelo economÃtrico indica que, teoricamente, a produtividade marginal do capital se modifica de acordo com uma taxa de crescimento indicada pelo parÃmetro threshold. Essa modificaÃÃo pode aparentemente ser explicada devido à modificaÃÃo do coeficiente de elasticidade de substituiÃÃo entre capital e trabalho, ficando aqui uma proposta de novas investigaÃÃes. Ao tratarmos de polÃticas pÃblicas, constata-se que, por mais que se amplie a taxa de formaÃÃo bruta de capital fixo chegaremos, no mÃximo, ao âcatch-upâ do crescimento do PIB das economias de renda mÃdia baixa e do crescimento econÃmico dos paÃses do leste asiÃtico e do PacÃfico. O trabalho tambÃm sugere que o montante de recursos necessÃrio para se concluir tais âcatch-upsâ à da ordem de R$ 786 bilhÃes.
In this work it is evident that a not linear relation exists enters the tax of rude formation of capital fixture and the tax of economic growth in Brazilian economy e, which had to this non linearity, the test of predictions of model AK and neoclÃssico considered for Jones (1995) starts to be inconclusivo, therefore exists space for the predictions of both the models. Our econometrical model indicates that, theoretically, the productivity delinquent of the capital if modifies a tax of growth in accordance with indicated for the parameter threshold. This modification can pparently be explained due to modification of the coefficient of elasticity of substitution between capital and work, being here a proposal of new inquiries. When dealing with public politics, one evidences that, no matter how hard if extends the tax of rude formation of capital fixture will arrive, in the maximum, to âcatch-upâ of the growth of the GIP of the economies of average income decrease and of the economic growth of the countries of the Asian east and the Pacific. The work also suggests that the sum of resources necessary to conclude such âcatch-upsâ is of the order of R$ 786 billion.
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Libros sobre el tema "Modelo TAR"

1

Wang, Jianquan. Ke ji zhuan an jing fei fen pei mo shi zhi tan tao. Taibei Shi: Cai tuan fa ren Zhonghua jing ji yan jiu yuan, 1998.

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Chisik tae(tae) todŏk. Sŏul: Chʻŏrhak kwa Hyŏnsilsa, 1993.

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Chisik tae (tae) todŏk. Sŏul: Chʻŏrhak kwa Hyŏnsilsa, 1993.

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Gajl, Natalia. Modele podatkowe: Podatki majątkowe. Warszawa: Wydawn. Sejmowe, 1996.

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Gajl, Natalia. Modele podatkowe: Podatki dochodowe. Warszawa: Wydawn. Sejmowe, 1995.

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Wang, Guoliang. Gao su gong lu chang tu ke yun guan zhi zheng ce zhi tan tao. Taibei Shi: Zhonghua jing ji yan jiu yuan, 1988.

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Geara, Edgar Barnichta. Modelos del procedimiento tributario. Santo Domingo, R.D: [publisher not identified], 2013.

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Caturwati, Endang. Tari kariaan: Model pembelajaran tari anak-anak di daerah Subang, Jawa Barat. Bandung: Sunan Ambu Press, STSI, 2008.

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Man cheng yun xin ji: Man cheng du shi xing tai yu shang ji tan tao = Analysis of the cittaslow development model and the potential opportunities in Taiwan. Xinzhu Xian Zhudong Zhen: Gong ye ji shu yan jiu yuan chan ye jing ji yu qu shi yan jiu zhong xin, 2009.

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Cilke, James. The treasury individual income tax simulation model. [Washington, DC: Dept. of the Treasury, 1994.

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Capítulos de libros sobre el tema "Modelo TAR"

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Wang, Shuhao, Ming Yin, Zixuan Wang y Jianmin Wang. "TAR++: A New Process Model Similarity Algorithm Based on the Importance of TARs". En Lecture Notes in Business Information Processing, 98–112. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19509-4_8.

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Rendle, Steffen. "Tag Recommendation". En Context-Aware Ranking with Factorization Models, 85–111. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-16898-7_7.

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Su, Yong y Lanjian Chen. "The Mengniu “Tao”". En Modern Oriental Corporate Culture, 57–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-35214-0_5.

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Giordano, Francesco, Marcella Niglio y Cosimo Damiano Vitale. "A Note on the Linear Approximation of TAR Models". En Data Analysis and Applications 1, 105–16. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2019. http://dx.doi.org/10.1002/9781119597568.ch7.

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Hood, Colin. "The V-Model is Dead. Long Live the V-Model!" En Tag des Systems Engineering, 279–88. München: Carl Hanser Verlag GmbH & Co. KG, 2016. http://dx.doi.org/10.3139/9783446451414.027.

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Pasa, V. M. D., F. Carazza y C. Otani. "Wood Tar Pitch: Analysis and Conceptual Model of its Structure". En Developments in Thermochemical Biomass Conversion, 448–61. Dordrecht: Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-1559-6_35.

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Seeger, Karlheinz. "Streuprozesse im sphärischen Ein-Tal-Modell". En Halbleiterphysik, 211–96. Wiesbaden: Vieweg+Teubner Verlag, 1992. http://dx.doi.org/10.1007/978-3-322-98553-8_6.

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Squartini, Mario. "From TAM to discourse". En Discourse Markers and Modal Particles, 163–90. Amsterdam: John Benjamins Publishing Company, 2013. http://dx.doi.org/10.1075/pbns.234.07squ.

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Schumann, Holger y Axel Berres. "Modellbasierter Systementwurf mit dem PrEMISE-Modell". En Tag des Systems Engineering, 33–44. München: Carl Hanser Verlag GmbH & Co. KG, 2012. http://dx.doi.org/10.3139/9783446434059.004.

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von Dungern, Oskar. "Semantic Model Integration for System Specification: Creating a Common Context for Different Model Types". En Tag des Systems Engineering, 397–406. München: Carl Hanser Verlag GmbH & Co. KG, 2016. http://dx.doi.org/10.3139/9783446451414.038.

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Actas de conferencias sobre el tema "Modelo TAR"

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Klinghoffer, Naomi y Marco J. Castaldi. "Deactivation and Energy Analysis of Char Catalysts in Biomass Gasification Systems". En 20th Annual North American Waste-to-Energy Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/nawtec20-7036.

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One of the major barriers to gasification is the need for elimination of tars that are generated in thermochemical conversion processes. While metal catalysts can be used for tar decomposition, and cheaper alternative is char. Deactivation of char catalysts has been studied and these deactivation rates have been applied to a model for a gasification system. The calculations and experimental data presented here show that if the char from a gasifier is recycled to a tar reformer then some char deactivation will take place, but the activity will not fall below 40% of its initial activity. The energy penalty for diverting char, a potential heat source, to a catalytic reactor has been accounted for. This was done by comparing the heating value of char to the heating value of syngas generated from reforming tar using the char as a catalyst. At high gasification temperatures, when tar production in the gasifier was low, the char had a higher heating value than the syngas that was produced from tar reforming. At low temperatures, the heating value of the syngas exceeded that of the char combustion, which implies an overall energy benefit.
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Herman, Cila, Christopher Lavin y Zdeneˇk Tra´vni´cˇek. "Performance of Thermoacoustic Refrigerators: Cooling Load and Coefficient of Performance". En ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/ht2008-56436.

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Thermoacoustic refrigeration is an environmentally safe refrigeration technology that has evolved over the past three decades [1–5]. The influence of working fluid on the performance of the thermoacoustic refrigerator (TAR) expressed in terms of the cooling load and the coefficient of performance is discussed in the paper. The calculations rely on the short stack boundary layer approximation. A simple model of a one-dimensional half wavelength resonance tube equipped with stack plates and a pair of heat exchangers was used as the physical model. It is known that a TAR with noble gases and their mixtures as working fluids can achieve high values of the coefficient of performance (COP) because of small Prandtl number values. The present study revealed and quantified that cooling load behavior is quite different from the performance in terms of the COP: the highest cooling load is achieved with pure Helium as the working fluid. A reason is the very high sound speed in Helium. TARs with Helium as the working fluids deliver the highest cooling load of all gases and their mixtures examined here, therefore it has been suggested as a limiting case of the most powerful TAR. The influence of geometry and thermophysical parameters of the device on TAR performance was studied systematically and a performance sensitiviy analysis was presented with particular emphasis on TAR cooling load.
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Liu, Hao y Bernard M. Gibbs. "Modeling of NH3 and HCN Emissions From Biomass CFB Gasifiers". En 17th International Conference on Fluidized Bed Combustion. ASMEDC, 2003. http://dx.doi.org/10.1115/fbc2003-139.

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A circulating fluidized bed (CFB) biomass gasification model is developed in the present study. The model consists of sub-models for devolatilization, tar cracking and a chemical reaction network of main gasification reactions and nitrogen chemistry. Unlike the most of the previous biomass gasification models, devolatilization of biomass particles is modeled with a limited rate, which is selected from the literature based on woody biomass fuels. To predict the tar content of the gasification gaseous products, kinetics for tar evolution and cracking is adopted from literature and included in the model. All model parameters are chosen for a typical woody biomass — pinewood chips. The partition of fuel nitrogen between volatiles and char is also specifically chosen for pinewood based on the available experimental data from literature. Volatile nitrogen is assumed to consist of NH3, HCN and N2 with the distribution between three species as input parameters to the model. A total of forty global chemical reactions are included in the model, of which twenty-eight reactions belong to fuel-nitrogen reaction network. Individual reaction rates are selected from the literature, wherever possible, based on studies of woody biomass fuels. Modeling of the hydrodynamics of the riser is simplified by using solids concentration profile along the riser as an input to the model. Both gaseous phase and solids phase are assumed to be in plug flow. Modeling results are compared with the experimental results published in the literature. Predicted effects of bed temperature and equivalence ratio on main gaseous composition, tar content and NH3, HCN emissions generally agree with the literature data.
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Kayode, B., F. Al-Tarrah y G. Hursan. "Methodology for Static and Dynamic Modeling of Hydrocarbon Systems Having Sharp Viscosity Gradient". En International Petroleum Technology Conference. IPTC, 2021. http://dx.doi.org/10.2523/iptc-21184-ms.

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Abstract This paper describes a methodology for delineating tar surface, incorporating it into a geological model, and the process for numerical modeling of oil viscosity variation with depth above the tar surface. The methodology integrates well log data and compositional fluid analysis to develop a mathematical model that mimics the oil's property variation with depth. While there are a good number of reservoirs that fit this description globally, there is a knowledge gap in literature regarding best practices for dealing with the peculiar challenges of such reservoirs. These challenges include; (i) how to delineate the top-of-tar across the field, (ii) modeling of Saturation Height Function (SHF) in a system where density and wettability is changing with depth, and (iii) the methodology for representing the depth-dependent oil properties (especially viscosity) in reservoir simulation. Nuclear magnetic resonance (NMR) logs were used to predict fluid viscosity using a technique discussed by Hursan et al. (2016). Viscosity regions are identified at every well that has an NMR log, and these regions are mapped from well to well across the reservoir. Within each viscosity region, the analysis results of fluid samples collected from wells are used to develop mathematical models of fluid composition variation with depth. A reliable SHF model was achieved by incorporating depth-varying oil density and depth varying wettability into the calculation of J-Function. A compositional reservoir simulation was set-up, using the viscosity regions and the mathematical models describing composition variation with depth, for the respective regions. Using information obtained from literature as a starting point, residual oil saturation was modeled as a function of oil viscosity. Original reservoir understanding places the top of non-movable oil (tar) at a constant fieldwide subsurface depth, which corresponds to the shallowest historical no-flow drillstem test (DST) depth. Mapping of the NMR viscosity regions across the field resulted in a sloping tar-oil contact (TOC), which resulted in an increase of movable hydrocarbon pore volume. The viscosity versus depth profile from the simulation model matched the observed data, and allow the simulation model better predict well performance. In addition, the simulation model results also matched the depth-variation of observed formation volume factor (FVF) and reservoir fluid density. Some wells that have measured viscosity data but no NMR logs were used as blind-test wells. The simulation model results also matched the measured viscosity at those blind-test wells. These good matches of the oil property variation with depth gave confidence, that the simulation model could be used as an efficient planning tool for ensuring that injectors are placed just-above the tar mat. The use of the simulation model for well planning could reduce the need for geosteering while drilling flank wells, leading to savings in financial costs. This paper contains a generalized approach that can be used in static and dynamic modeling of reservoirs, where oil changes from light to medium to heavy oil, underlain by tar. It contains recommendations and guidelines to construct a reliable simulation model of such systems.
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Lee, Sang-Hyun, Kurosh Darvish y Libor Lobovsky. "Fluid-Structure Interaction in Finite Element Modeling of Traumatic Aortic Rupture". En ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-61790.

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Traumatic Aortic Rupture (TAR) during automobile crashes is one of the leading causes of fatality. In this study, the physical parameters and mechanisms of aortic rupture in dynamic pressure loading condition were investigated using different numerical approaches in a finite element model, including Eulerian, Arbitrary Lagrangian-Eulerian (ALE), and Smoothed Particle Hydrodynamics (SPH) formulations. The TAR models were compared against in vitro experiments and predicted the most probable location of rupture at the isthmus as indicated in the literature.
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Ibrahim, K., M. I. Sayed y T. M. Matarid. "Integrating Subsurface Core and Log Data to Model Tar Mat in a Carbonate Upper Jurassic Reservoir in Offshore Abu Dhabi, UAE". En Third EAGE/SPE Workshop on Tar Mats. Netherlands: EAGE Publications BV, 2012. http://dx.doi.org/10.3997/2214-4609.20143552.

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Zhang, K., H. T. Li, Z. S. Wu y T. Mi. "The Thermal Cracking Experiment Research of Tar Model Compound". En 2009 International Conference on Energy and Environment Technology (ICEET 2009). IEEE, 2009. http://dx.doi.org/10.1109/iceet.2009.627.

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Kumar, Mayank, Cheng Zhang, Rory F. D. Monaghan, Simcha L. Singer y Ahmed F. Ghoniem. "CFD Simulation of Entrained Flow Gasification With Improved Devolatilization and Char Consumption Submodels". En ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12982.

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In this work, we use a CFD package to model the operation of a coal gasifier with the objective of assessing the impact of devolatilization and char consumption models on the accuracy of the results. Devolatilization is modeled using the Chemical Percolation Devolitilization (CPD) model. The traditional CPD models predict the rate and the amount of volatiles released but not their species composition. We show that the knowledge of devolatilization rates is not sufficient for the accurate prediction of char consumption and a quantitative description of the devolatilization products, including the chemical composition of the tar, is needed. We incorporate experimental data on devolatilization products combined with modeling of the tar composition and reactions to improve the prediction of syngas compositions and carbon conversion. We also apply the shrinking core model and the random pore model to describe char consumption in the CFD simulations. Analysis of the results indicates distinct regimes of kinetic and diffusion control depending on the particle radius and injection conditions for both char oxidation and gasification reactions. The random pore model with Langmuir-Hinshelwood reaction kinetics are found to be better at predicting carbon conversion and exit syngas composition than the shrinking core model with Arrhenius kinetics. In addition, we gain qualitative and quantitative insights into the impact of the ash layer surrounding the char particle on the reaction rate.
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Hu, Rong, Tingting He, Fang Li y Po Hu. "Tag recommendation based on tag-topic model". En 2012 IEEE 2nd International Conference on Cloud Computing and Intelligence Systems (CCIS). IEEE, 2012. http://dx.doi.org/10.1109/ccis.2012.6664635.

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Wang, Yurong, Fangxing Li, Qiulan Wan y Hao Chen. "Hybrid Momentum TAR-GARCH models for short term load forecasting". En 2011 IEEE Power & Energy Society General Meeting. IEEE, 2011. http://dx.doi.org/10.1109/pes.2011.6039465.

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Informes sobre el tema "Modelo TAR"

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Salamanca, Andrés y Viviana Monroy. Deuda externa pública e inversión en Colombia 1994-2007: evidencia de un modelo no-lineal TAR. Bogotá, Colombia: Banco de la República, diciembre de 2008. http://dx.doi.org/10.32468/be.543.

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Ayala-García, Jhorland, Sandy Dall'erba y William C. Ridley. Externalities of extreme natural disasters on local tax capacity. Banco de la República de Colombia, julio de 2021. http://dx.doi.org/10.32468/dtseru.299.

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This paper studies the impact of extreme weather events on the local tax revenue across Colombian municipalities. We follow a two-step approach to evaluate to what extent a municipality’s tax revenue depends on natural disasters taking place both locally and in its trade partners. In the first step, we estimate a gravity model of bilateral trade and construct a trade flow matrix allowing us to measure the strength of the economic relationships between cities. To do so, we build a novel dataset describing the inter-city trade flows for road transported goods in Colombia for the period 2015–2019. In the second step, we use spatial models to estimate the externalities of extreme weather events. Our results reveal that natural disasters in the destination cities increase the tax revenue in the origin city. We provide evidence of the capacity of trade to mitigate the negative effects of natural disasters.
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Kleven, Henrik Jacobsen, Claus Thustrup Kreiner y Emmanuel Saez. Why Can Modern Governments Tax So Much? An Agency Model of Firms as Fiscal Intermediaries. Cambridge, MA: National Bureau of Economic Research, agosto de 2009. http://dx.doi.org/10.3386/w15218.

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Kotlikoff, Laurence y Jianjun Miao. What Does the Corporate Income Tax Tax? A Simple Model without Capital. Cambridge, MA: National Bureau of Economic Research, julio de 2010. http://dx.doi.org/10.3386/w16199.

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Gerjarusak, S., W. A. Peters y J. B. Howard. A mathematical model for tar release in rapid devolatilization of a softening bituminous coal. Office of Scientific and Technical Information (OSTI), diciembre de 1990. http://dx.doi.org/10.2172/6372724.

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Andrews, Malcolm y Dean Preston. TAB Models for Liquid Sheet and Ligament Breakup. Office of Scientific and Technical Information (OSTI), septiembre de 2014. http://dx.doi.org/10.2172/1154967.

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Zakharova, Elena N. Implementation of-Tae model adaptive Development edukation agentsis. ООО «Электронные издательские технологии», 2015. http://dx.doi.org/10.18411/2015-10-003.

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Cheng, C. Z., N. N. Gorelenkov y C. T. Hsu. Fast particle destabilization of TAE modes. Office of Scientific and Technical Information (OSTI), septiembre de 1995. http://dx.doi.org/10.2172/206585.

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Sarkissian, Angie. Comparison between the Tap Model and Sara-2d Results. Fort Belvoir, VA: Defense Technical Information Center, septiembre de 1997. http://dx.doi.org/10.21236/ada329259.

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Iregui-Bohórquez, Ana María. Tax exporting: an analysis using a multiregional CGE model. Bogotá, Colombia: Banco de la República, febrero de 2001. http://dx.doi.org/10.32468/be.171.

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