Concreto projetado é aquele pneumaticamente transportado e projetado a alta velocidade, sobre uma superficie, sendo auto-compactado. Assim, denota-se que suas propriedades são dependentes do processo de projeção utilizado. Desta forma, para se estudar o material, é importante ter-se o conhecimento do seu processo de produção (se por via seca ou úmida, equipamentos e mão-de-obra utilizados, etc.) e das propriedades especificas do concreto projetado (como a reflexão, o desplacamento e a liberação de poeira ou névoa) e as respectivas formas de controle. Foi executado o estudo experimental do concreto projetado via seca, onde foi possivel caracterizar algumas diferenças de comportamento em relação ao concreto convencional. Entre elas está o fato de que a maior compactação e resistência mecânica é obtida com o teor ótimo da mistura e não com a menor relação água/cimento. Constatou-se o fato da projeção do concreto no teto fornecer um material de melhor qualidade que aquele projetado na parede. Finalmente, para a obtenção de um material boa qualidade, é fundamental o controle rigoroso do teor de aditivo acelerador, a utilização de bicos afunilados, pressão de ar comprimido adequada, pré-umidificação com injeção de água sob pressão e seguir as recomendações para o controle da qualidade do processo de projeção como um todo. / Shotcrete is concrete pneumatically conveyed and projected at high speed onto a surface, compacting itself. Thus its properties depend on the shooting process. It is important to know the shooting process (wet ou dry-mix process, equipaments and working crew, etc.), the specific properties of shotcrete (rebound, sloughing and dust generation) and respective mean of controlo An experimental study was made using dry-mix shotcrete, where it was possible to point out some differences of the plain concrete analysis. One of these is the high compaction and stregth achieved with the optimum waterIdry materiaIs ratio and not the minimum water/cement ratio. Shotcrete, gunned in overhead, generates a better material compared to the vertical walls. Finally, to obtain a good quality material, it\'s very important to make a rigorous control of the accelerator admixture contento AIso, it is recommended to use a funnelshaped nozzle, adequate compressed air pressure, hidromix with high water pressure and to follow the recommendations on alI shotcreting process quality control.

A mamografia é um método de diagnóstico por imagem que utiliza radiação X. No controle de qualidade dos mamógrafos, as câmaras de ionização são usadas para verificar se os parâmetros de exposição das pacientes estão corretos. Contudo, as câmaras de ionização comerciais para dosimetria em mamografia representam alto custo para clínicas de pequeno e médio porte que desejam ter esse equipamento ou para profissionais que trabalham com controle de qualidade. Assim, a característica inovadora deste trabalho foi desenvolver câmaras de ionização para este fim. Neste trabalho foram projetadas, construídas e caracterizadas câmaras de ionização para feixes de radiação X, no intervalo de energia de mamografia. As câmaras de ionização foram caracterizadas em feixes padronizados de radiação X no LCI/IPEN. Os testes principais de caracterização das câmaras de ionização foram: curva de saturação, linearidade da resposta, dependência energética e angular. Os testes de estabilidade da resposta das câmaras de ionização também foram realizados, apresentando resposta dentro de 2,0 % para estabilidade em longo prazo. Os resultados dos demais testes foram em conformidade com normas internacionais. Essas câmaras de ionização foram ainda submetidas a testes de controle de qualidade de mamógrafos quanto à linearidade das taxas de kerma no ar, à determinação das camadas semirredutoras e das doses glandulares médias. Para a linearidade da taxa de kerma, os valores obtidos foram abaixo dos 10 %, como estabelecido em norma. A dose glandular determinada com as câmaras desenvolvidas apresentaram valores comparáveis com os da câmara de referência testada, com variação prevista em recomendações internacionais. / Mammography is an imaging method that uses X-rays. The use of ionization chambers in mammography quality control programs presents an essential role which is to verify whether the parameters of the patient exposure are correct. However, the commercial ionization chambers for dosimetry in mammography represent a high cost for small and medium size clinics that wish to have this equipment or for professionals that work with quality control programs. The innovative feature of this work was to develop ionization chambers for this purpose. In this work ionization chambers for X radiation beams in the mammography energy range were designed, constructed and characterized. The ionization chambers were tested in standard X radiation beams at the LCI/IPEN. The main characterization tests performed with the ionization chambers were: saturation curve, linearity of response, angular and energy dependence. The response stability tests of the ionization chambers were also conducted at the LCI, presenting results within 2.0 % for long-term stability. The results of the remaining tests are in accordance with international standards. These ionization chambers were also submitted to quality control tests of mammography equipment: linearity of the air kerma rates, determination of half-value layers and mean glandular doses. The results for air kerma rate linearity were less than 10 %, as recommended in international standards. The mean glandular dose obtained with the developed chambers presented values comparable to those of commercial ionization chambers tested, with an estimated variation within international standards.

Membrane compartmentalisation allows eukaryotic cells to perform complex processes by combining dedicated sets of proteins in the same organelle. To achieve this, the cell must first target the appropriate proteins, primarily synthesised on cytosolic ribosomes, to the correct subcellular location. Components of the secretory pathway/endomembrane system begin this journey via their signal sequence-dependent delivery to the endoplasmic reticulum (ER). These ER targeting signals are hydrophobic, and typically function whilst the protein is being synthesised, via a so-called 'co-translational' pathway. However, some hydrophobic signals can also facilitate post-translational protein targeting to the ER, or initiate regulated protein degradation in the cytosol. Tail-anchored (TA) proteins are transmembrane proteins with a single C-terminal transmembrane domain that functions as both their subcellular targeting signal and membrane anchor. Recent evidence suggests that the canonical TRC40 pathway, through which mammalian TA proteins are delivered to the ER, may not be essential in vivo. In this thesis, I provide functional evidence for the existence of an orthologous SRP-independent (SND) pathway in mammalian cells and identify roles for both the signal recognition particle (SRP)-mediated pathway and presumptive mammalian SND pathway in the biogenesis of TA proteins. I conclude that although TRC40 normally plays a role in TA protein biogenesis, it is not essential, and speculate that these alternative pathways make a significant contribution to the apparent redundancy of the TRC40 pathway in vivo. The soluble components that act upstream of TRC40 during protein biogenesis also play an important role in the recognition and selective degradation of hydrophobic membrane and secretory proteins that mislocalise to the cytosol. I now provide preliminary evidence that TRC40 appears to exhibit dual functionality, having a non-essential role in TA protein delivery, whilst also contributing to protein quality control by acting as a putative holdase. My data suggest that both TRC40 and BAG6 can influence the proteasomal degradation of a novel class of substrates, which I have termed the aberrant short secretory proteins.

In last few years there has been significant growth in the area of wireless communication. Quality of Service (QoS) has become an important consideration for supporting variety of applications that utilize the network resources. These applications include voice over IP, multimedia services, like, video streaming, video conferencing etc. IEEE 802.16/WiMAX is a new network which is designed with quality of service in mind. This thesis focuses on analysis of quality of service as implemented by the WiMAX networks. First, it presents the details of the quality of service architecture in WiMAX network. In the analysis, a WiMAX module developed based on popular network simulator ns-2, is used. Various real life scenarios like voice call, video streaming are setup in the simulation environment. Parameters that indicate quality of service, such as, throughput, packet loss, average jitter and average delay, are analyzed for different types of service flows as defined in WiMAX. Results indicate that better quality of service is achieved by using service flows designed for specific applications. / by Rohit Talwalkar. / Thesis (M.S.)--Florida Atlantic University, 2008. / Includes bibliography. / Electronic reproduction. Boca Raton, FL : 2008 Mode of access: World Wide Web.

Recently, the Birkhoff-von Neumann (BvN) switch has become a typical model for providing QoS in input-queued switch. The major idea is to consider a set of predetermined permutation matrices as independent flows, and the scheduling problem in the input-queued switch can be simply handled by single-server scheduling algorithms, such as weighted fair queueing (WFQ). However, a number of problems are observed. Firstly, although WFQ is a fair algorithm, it has a poor delay performance that depends on the port counts. Secondly, the BvN switch does not perform well under certain traffic requirement, thus unable to provide tight performance guarantees. In this thesis, a set of admission control strategies and scheduling algorithms are therefore developed to improve the QoS performance. / The input-queued switch architecture is widely used in Internet routers, due to its ability to run at very high speeds. A central problem in designing an input-queued switch is choosing the scheduling algorithm, i.e. deciding which packets to transfer from input ports to output ports in a given timeslot. Recent research in packet switch scheduling algorithms has moved beyond throughput maximization to quality of service (QoS) control. / Choy Man Ting. / "September 2006." / Adviser: Tony T. Lee. / Source: Dissertation Abstracts International, Volume: 68-03, Section: B, page: 1815. / Thesis (Ph.D.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (p. 89-94). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. [Ann Arbor, MI] : ProQuest Information and Learning, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Abstracts in English and Chinese. / School code: 1307.

Abstract In this thesis, we consider the performance evaluation of peer-to-peer (P2P)streaming over wireless networks. Traditionally, P2P streaming has been implemented and analyzed extensively in wire line networks. As more and more devices are connected to the internet through wireless, however, it is critical to understand how wireless channel variability affects the performance of P2P systems. Weformulate the P2P streaming system as a queuing network, and analyze its performance based onthe large deviation principle. We are interested in characterizing the buffer underow probability, where users run of out content and cannot receive smooth video playback. As explicit analysis is very dicult with a nite number of users, we focus on characterizing the performance bounds when the number of users goes to innity, assuming that playback rate and buffer size both grow linearly with the number of users N. We show that the upper bound of buffer underow probability decays exponentially in N. We also compare the decay rate of bound in different channel models, and show that the Markov modulated channel leads to a faster decay rate than the I.I.D. model with the same expected channel capacities. / Leung, Kam Wong. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2012. / Includes bibliographical references (leaves 50-52). / Abstract --- p.i / Acknowledgement --- p.iv / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Background --- p.2 / Chapter 1.1.1 --- Video Streaming --- p.2 / Chapter 1.1.2 --- Large Deviations Theory --- p.4 / Chapter 1.2 --- Related Works --- p.6 / Chapter 2 --- System Model and Assumptions --- p.9 / Chapter 2.1 --- System Model --- p.9 / Chapter 2.2 --- Assumptions --- p.11 / Chapter 2.3 --- Queuing Model --- p.12 / Chapter 3 --- Performance of Large Network --- p.16 / Chapter 3.1 --- Large Deviation Principle --- p.16 / Chapter 3.2 --- Time I.I.D. Channel Model --- p.23 / Chapter 3.3 --- Markov Modulated Channel --- p.29 / Chapter 3.4 --- Performance Comparison of Channel Model: Time I.I.D. Model vs Markov Modulated Model --- p.31 / Chapter 4 --- Simulation Result and Analysis. --- p.35 / Chapter 4.1 --- Simulation Settings --- p.35 / Chapter 4.2 --- The Performance Bounds of Different Playback Rates --- p.36 / Chapter 4.3 --- The Performance Bounds for Different Channel Transition Matrix --- p.37 / Chapter 5 --- Conclusion --- p.40 / Chapter A --- Appendix --- p.42 / Chapter A.1 --- Convexity of decay rate function for time I.I.D Model --- p.42 / Chapter A.2 --- Condition for the Chernoff Bound hold --- p.44 / Chapter A.3 --- Convergence of the Decay Rate Function --- p.44 / Chapter A.4 --- Moment Generating Function of Markov Modulated Sources --- p.46 / Chapter A.5 --- Limiting Probability Distribution of Capacity of Markov Channel --- p.47 / Chapter A.6 --- Computation: Capacity p.d.f of Two States Markov Modulated Channel --- p.48 / Bibliography --- p.50

Submitted by Aline Batista (alinehb.ufpel@gmail.com) on 2018-04-13T18:31:46Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertacao_Aline_Silveira_Cardoso_Oliveira.pdf: 2264789 bytes, checksum: 935fe6affb42c7bd8ef6d0e2d3a89651 (MD5) / Made available in DSpace on 2018-04-13T19:59:09Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Dissertacao_Aline_Silveira_Cardoso_Oliveira.pdf: 2264789 bytes, checksum: 935fe6affb42c7bd8ef6d0e2d3a89651 (MD5) Previous issue date: 2006-09-12 / Sem bolsa / A prática da fitoterapia segura não se verifica apenas por meio da análise do produto final, mas também, na obtenção da espécie vegetal, desde sua identificação, cultivo, colheita, beneficiamento, armazenamento e comercialização. A ausência de qualidade, a adulteração e a utilização incorreta podem interferir na eficácia e até mesmo na segurança do uso do produto. Uma das espécies amplamente utilizada tanto na medicina popular quanto no sistema oficial de saúde é a Maytenus ilicifolia Mart ex Reissek (espinheira-santa) para o tratamento de dispepsias. O objetivo deste trabalho foi avaliar os parâmetros de qualidade das amostras secas de espinheira-santa disponíveis nos locais de comercialização formal na cidade de Pelotas. Este estudo tem delineamento classificado como descritivo experimental e analítico. Foram coletadas 11 amostras de plantas medicinais popularmente conhecidas como cancorosa e/ou espinheira-santa, vendidas no comércio formal (farmácias, drogarias e supermercados) e uma amostra padrão coletada no Instituto Federal Sul-rio-grandense, Campus Pelotas - Visconde da Graça. Foram avaliadas características organolépticas e físico-químicas, além dos rótulos dos produtos. Todas as amostras foram reprovadas em pelo menos dois parâmetros analisados, indicando que é necessário ampliar a fiscalização visando garantir a segurança ao consumidor. / The practice of safe phytotherapy does not occur only through the analysis of the final product, but also in obtaining the plant species, from its identification, growing, harvest, processing, storage, and commercialization. The lack of quality, adulteration, and the misuse may interfere with the efficacy and even in the safe use of the product. One of the widely used species is Maytenus ilicifolia Mart ex Reissek (espinheira-santa), which is a common practice both in popular medicine and official health system for treatment of dispepsy. The objective of this work was evaluate the parameters of quality of dry samples of „espinheira-santa‟ available in formal local marketing in the municipality of Pelotas. The design of this study is descriptive, experimental and analytical. Eleven samples of medicinal plants popularly known as „cancorosa‟ and/or „espinheira-santa‟ were collected from formal marketing (pharmacies, drugstores and super markets), and a standard sample was collected from Instituto Federal Sul Riograndense, Campus Pelotas – Visconde da Graça. Physico-chemical and organoleptic characteristics were evaluated, as well as the labels of the products. All samples were not approved at least in two parameters analyzed, indicating that is necessary to expand surveillance to ensure consumer safety.

Submitted by Mario BC (mario@bc.ufrpe.br) on 2017-02-13T13:10:07Z No. of bitstreams: 1 Moises Tenorio Ferrer.pdf: 2245013 bytes, checksum: 440b63b0a25d6263c4d43cc9c2a774c9 (MD5) / Made available in DSpace on 2017-02-13T13:10:07Z (GMT). No. of bitstreams: 1 Moises Tenorio Ferrer.pdf: 2245013 bytes, checksum: 440b63b0a25d6263c4d43cc9c2a774c9 (MD5) Previous issue date: 2016-07-27 / The aim of this study was to analyze the spatial variability of the composition and quality of refrigerated raw milk in the state of Alagoas and in the middle region of Pernambuco Agreste, in the years 2014 and 2015. Thus, were obtained from the three companies in the dairy sector submitted to the federal inspection service (SIF) that collect milk in the state of Alagoas and in the middle region of Pernambuco Agreste, 3863 monthly official reports on somatic cell count (SCC) and total bacterial (CBT), fat, protein, lactose, total solids and nonfat dry extract of 432 different tanks direct expansion milk in the years 2014 and 2015. the data were analyzed for spatial dependence and geographically weighted regression, using the ArcGIS 10.3 software. It was observed predominantly spatial distribution of CBT log 5.07 to 5.19 and diffuse areas with values from 5.20 to 5.54. It was observed predominant value of somatic cell score (SCS) from 2.81 to 2.99; sites with from 1.87 to 2.80; places with 3.00 to 3.16, and isolated points with peaks from 3.17 to 3.39. It was identified low influence of altitude, rainfall and altitude interaction x rainfall on the ECS and the CBT log. The analysis of spatial dependence was observed that there is high spatial dependence between variables fat, lactose and total solids. Still, protein, ECS and CBT log have moderate spatial dependence and the dry extract low spatial dependence. The altitude, rainfall and altitude interaction x rainfall have low influence on the fat, lactose, protein, total solids, nonfat dry extract, ECS and CBT log. Finally, geostatistics is an important tool for the analysis of milk quality, helping the classical statistics for better understanding of the phenomenon when the variable is regionalized. / O objetivo com este trabalho foi analisar a variabilidade espacial da composição e qualidade do leite cru refrigerado no Estado de Alagoas e na mesorregião do Agreste pernambucano, nos anos de 2014 e 2015. Para tanto, foram obtidos, junto as três empresas do setor de lácteos submetidas ao serviço de inspeção federal (SIF) que captam leite no Estado de Alagoas e na mesorregião do Agreste pernambucano, 3.863 laudos oficiais mensais sobre a contagem de células somáticas (CCS) e bacteriana total (CBT), os teores de gordura, proteína, lactose, sólidos totais e extrato seco desengordurado do leite de 432 diferentes tanques de expansão direta nos anos de 2014 e 2015. Os dados foram analisados quanto a dependência espacial e regressão geograficamente ponderada, com o uso do software ArcGIS 10.3. Foi observada distribuição espacial predominante da log CBT de 5,07 a 5,19 e áreas difusas com valores de 5,20 a 5,54. Foi observado valor predominante do escore de células somáticas (ECS) de 2,81 a 2,99; locais com 1,87 a 2,80; locais com 3,00 a 3,16, e pontos isolados com picos de 3,17 a 3,39. Foi identificada baixa influência da altitude, da precipitação pluviométrica e da interação altitude x precipitação sobre o ECS e o log CBT. Quanto a análise da dependência espacial, foi observado que há dependência espacial alta entre as variáveis gordura, lactose e sólidos totais. Ainda, proteína, ECS e log CBT têm dependência espacial moderada e o extrato seco desengordurado baixa dependência espacial. A altitude, precipitação pluviométrica e a interação altitude x precipitação têm baixa influência sobre os teores de gordura, lactose, proteína, sólidos totais, extrato seco desengordurado, ECS e log CBT. Por fim, a geoestatística é uma ferramenta importante para a análise da qualidade do leite, auxiliando a estatística clássica para um melhor entendimento do fenômeno quando a variável é regionalizada.

Submitted by THAYS NETO null (thays_neto@hotmail.com) on 2017-02-14T12:19:41Z No. of bitstreams: 1 Dissertação final corrigida Thays1.pdf: 2190291 bytes, checksum: 9e23877fdf7cbe05ad85fc4d79544592 (MD5) / Approved for entry into archive by LUIZA DE MENEZES ROMANETTO (luizamenezes@reitoria.unesp.br) on 2017-02-15T13:41:39Z (GMT) No. of bitstreams: 1 neto_t_me_bot.pdf: 2190291 bytes, checksum: 9e23877fdf7cbe05ad85fc4d79544592 (MD5) / Made available in DSpace on 2017-02-15T13:41:39Z (GMT). No. of bitstreams: 1 neto_t_me_bot.pdf: 2190291 bytes, checksum: 9e23877fdf7cbe05ad85fc4d79544592 (MD5) Previous issue date: 2016-12-09 / A Coordenação Geral de Sangue e Hemoderivados CGSH, do Ministério da Saúde, comprometida com a missão de elaborar políticas que promovam o acesso da população à atenção hematológica e hemoterápica de forma segura e com qualidade, desenvolve suas ações em consonância com os princípios e as diretrizes do Sistema Único de Saúde – SUS e através da ANVISA implantou em 2001 a Avaliação Externa da Qualidade em Imuno-hematologia (AEQIH) contando com 8 unidades produtoras (UP). Em 2005 o Hemocentro de Botucatu passou a integrar as UP. Este trabalho tem como objetivo avaliar o desempenho dos serviços de hemoterapia (SH) da área de abrangência da Grande São Paulo, sob responsabilidade da UP de Botucatu no período de 2005-2015 levando em consideração diferentes indicadores: número de serviços atendidos/índice de adesão; erros e acertos nas técnicas de tipagem ABO e RhD, pesquisa de anticorpos irregulares (PAI), identificação de anticorpos irregulares (IAI), teste da antiglobulina direta (TAD), prova cruzada (PC) e fenotipagem eritrocitária (FE). A análise estatística realizada foi a de regressão linear, teste de correlação de Spearman e Curva ROC. Durante os 10 anos foram enviados 29 painéis práticos contendo 4 tipagens ABO e RhD (n=10.382), 2 amostras para PAI, IAI e TAD (n=5.191 respectivamente), PC (n=1.611) e FE (n=1.074) e 21 avaliações teóricas (18.975 questões). A média de SH participantes durante o período determinado foi de 89,5. O índice de crescimento, levando em consideração o número de serviços avaliados em 2005 e aqueles em 2015, indica um crescimento de 26,6%. Quanto à avaliação dos painéis práticos, o desempenho dos indicadores avaliados foi: ABO> RhD> PC>TAD>PAI>IAI>FE. Na avaliação individual o desempenho dos indicadores avaliados foi: IAI>PAI>FE>PC>ABO>TAD>RhD. Foram identificados 28 SH com o pior desempenho em mais de um parâmetro avaliado (24,13% do total): dos sete parâmetros avaliados, erraram dois deles (71%), três (11%), quatro (14%) e cinco (4%). O teste de correlação de Spearman identificou que o pior desempenho prático tem relação com o perfil dos serviços que não executam determinadas técnicas, bem como aqueles que têm dificuldade de responder a questionários. O percentual geral de acertos da avaliação teórica não apresenta tendência de resultados estáveis. O percentual individual de acertos da avaliação teórica varia de 80% a 99,9%. / The General Coordination of Blood and Hemoderivatives, of the Ministry of Health, committed to the mission of developing policies that promote the population's access to hematological and hemotherapeutic care in a safe and quality way, develops its actions in accordance with the principles and guidelines Of the Unified Health System and through ANVISA implemented in 2001 the External Evaluation of Quality in Immunohematology with 8 production units (PU). In 2005 the Botucatu Blood Transfusion Center became part of the UP. This study aims to evaluate the performance of hemotherapy services (HS) in the Greater São Paulo area, under the responsibility of the PU of Botucatu in the period 2005-2015, taking into account different indicators: number of services attended / rate of adherence; Errors in ABO and RhD typing techniques, irregular antibody test (IAT), identification of irregular antibodies (IAI), direct antiglobulin test (DAT), cross-test (CT) and erythrocyte phenotyping (EP). Statistical analysis was performed using linear regression, Spearman correlation test and ROC curve. During the 10 years, 29 practical panels containing 4 ABO and RhD typing (n = 10,382), 2 samples for IAT, IAI and DAT (n = 5,191 respectively), CT (n = 1,611) and EP (n = 1,074) were sent and 21 theoretical evaluations (18,975 questions). The mean number of participants during the study period was 89.5. The growth rate, taking into account the number of services evaluated in 2005 and those in 2015, indicates a growth of 26.6%. Regarding the evaluation of the practical panels, the performance of the indicators evaluated was: ABO>RhD>CT>DAT>IAT>IAI>EP. In the individual evaluation, the performance of the indicators evaluated was: IAI>IAT>EP>CT>ABO>DAT>RhD. RESULTS: Twenty-eight HS patients (71%), three (11%), four (14%) and five (11%) were found to be the worst performers in more than one parameter evaluated (24.13% of the total). The Spearman correlation test identified that the worst practical performance is related to the profile of services that do not perform certain techniques, as well as those that have difficulty answering questionnaires. The general percentage of correctness of the theoretical evaluation does not present a trend of stable results. The individual percentage of correctness of the theoretical evaluation varies from 80% to 99.9%.

Essa pesquisa objetivou avaliar métodos para estimar o vigor das sementes de fumo (Nicotiana tabacum L.) variedade Virgínia, cultivar CSC 439, nuas e peletizadas representadas por cinco lotes de sementes. Essas sementes foram submetidas aos seguintes testes de vigor: condutividade elétrica (0,5; 0,8; e 1,0 g e 2,5; 4,0 e 5,0 g de sementes nuas e peletizadas, respectivamente, hidratadas por 2, 4, 6, 8 e 24h em 25 mL de água destilada à 25 °C), envelhecimento acelerado (41 °C e 43 °C por 12 e 24h) com água (100% UR) e com solução salina de NaCl saturada (76% UR) e deterioração controlada (graus de umidade de 20% e 24% para sementes nuas e 8% e 12% para peletizadas, a 40 °C e 43 °C por 24 e 48h). As avaliações foram realizadas aos 7, aos 10 e aos 16 DAS (dias após a semeadura). Adicionalmente foi determinado o grau de umidade e realizados os testes de germinação, de primeira contagem de germinação e, a emergência da plântula e a velocidade de emergência da plântula. O delineamento experimental foi o inteiramente casualizado com quatro repetições. Os dados foram submetidos separadamente à análise de variância e a comparação das médias pelo teste de Tukey a 5% de probabilidade. Todas as análises foram repetidas uma vez. Conclui-se que o teste de condutividade elétrica não é eficiente para ordenar os lotes de semente de fumo, nuas e peletizadas, em diferentes níveis de vigor. Para o teste de envelhecimento acelerado as condições mais adequadas são 41 ºC por 12 horas de exposição com avaliação aos 7 dias após a semeadura, utilizando água (100% UR) para as sementes nuas e solução salina de NaCl (76% UR) para as sementes peletizadas. Para o teste de deterioração controlada, as combinações mais adequadas para as sementes nuas são 24% de água, exposição a 43 °C por 24h e avaliação aos 7 dias após a semeadura e para as sementes peletizadas 8 % de água a 43 °C por 48h e avaliação aos 16 dias. / The objective of this research was to evaluate methods for estimating the physiological quality of tobacco seeds (Nicotiana tabacum L.) \'Virginia variety, CSC 439\' cultivar. For this, five original seeds lots and five coated seed lots were used. The seed vigor were evaluated by electrical conductivity test (0.5, 0.8, and 1.0 g and 2.5, 4.0 and 5.0 g of original and coated seeds, respectively, hydrated for 2, 4, 6, 8 and 24 hours in 25 mL of distilled water at 25 ° C), accelerated aging test (41 ° C and 43 ° C for 12 and 24 hours) with water and saturated salt solution (NaCl) and controlled deterioration test (moisture content 20% and 24% for original seeds and 8% and 12% for coated seeds at 40 ° C and 43 ° C for 24 and 48). The evaluations were performed at 7, 10 and 16 DAS (days after sowing). Additionally, it was determined the seed the moisture content, germination test, first counting, seedling emergence and speed of seedling emergence. The experimental design was a completely randomized and the means were compared by Tukey test (5%). In conclusion, the electrical conductivity test is not efficient to sort lots of original and coated tobacco seeds in different levels of vigor. On the accelerated aging test the most adequate conditions are observed at 41 ºC for 12 hours of exposition and evaluations performed at 7 days after sowing, by using water (100% HR) for the original seeds and NaCl saturated salt solution (76% HR) for coated seeds. On the controlled deterioration test for the tobacco seeds the most adequated conditions are observed with the combinations of 24% of moisture content for the original seeds at 43 °C for 24 hours on evaluations performed at 7 days after sowing and 8% moisture content at 43 °C for 48 hours of exposition for coated seeds.