A tunable snapshot imaging spectrometer has been demonstrated. A liquid crystal spatial light modulator (LC SLM) has been integrated into a computed tomographic imaging spectrometer (CTIS) to achieve tunability. The LC SLM allows for rapid, programmable, and non-mechanical alteration of its phase profile by the application of appropriate voltages to its transparent electrodes.The goal of this dissertation is twofold: (1) to integrate a liquid crystal spatial light modulator into a CTIS instrument and characterize its performance as a tunable CTIS disperser, and (2) to implement tunability by analyzing different CTIS configurations.The theoretical model of CTIS operation, calibration, reconstruction, and disperser design are covered in detail. The cross talk of the LC SLM forces the use of a feedback design algorithm rather than designing the desired phase profile a priori in the computer. The modifications to the current polychromatic linear inversion technique for use with the LC SLM in feedback are presented. The result of the modifications is the successful integration of a reprogrammable (i.e. tunable) disperser for the CTIS instrument.The implementation of tunability is explored by analyzing the spectral resolution of a reconstructed point source for different disperser configurations. A method for experimentally determining the CTIS spectral resolution is presented.

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Purpose - With the social media's emergence in recent times, the main purpose of this study is to generate knowledge about social media communication’s impact on consumer-based brand equity, in terms of firm-created and user-generated social media communication. In order to make this possible, knowledge about customer’s perception about a specific brand is required. Furthermore, we are interested in explaining issues concerning how fashion companies can efficiently use social media, and the study’s intention is also to present recommendations of how companies can use social media as a marketing communication tool. Theory and hypothesis – This chapter deals with theory about consumer-based brand equity, where the different components of the model are presented. Also theory about social media, different social media applications and a social media strategy are described. Finally, firm- created and user-generated social media communications impact on brand equity are discussed, which leads to the study’s hypotheses. Methodology – The study has a triangulation consisting of both a qualitative and a quantitative part and has essentially a deductive approach. The study interviewed one expert in the fashion industry and one expert in the area of social media. An interview with the analysed company’s marketing manager was also made. The quantitative study was made on 624 respondents, which were all members of the company’s customer club. 97 of these 624 respondents were investigated in order to observe the impact of firm-created and user- generated social media communication on brand equity. Empirical findings and results – The findings in the study indicate that firm-created social media communication positively impact brand equity, while user-generated did not show to be significant. In this study it was shown that the majority of the respondents use social media, especially Facebook, and the content that most valuable was access to discounts and promotions as well as information about the brand and its products. Conclusion - Our study confirms the importance for companies to use social media as a marketing tool and it should be in all managers’ interest to make use of this channel. Also the importance of having high brand equity is highlighted and how the customer’s perceptions about a brand can be used as guidelines in order to increase brand equity.

Ermöglicht durch die Medientechnologien des Web 2.0 hat sich seit Mitte der 2000er Jahre ein kulturelles Nachahmungsphänomen im Internet entwickelt. YouTube, Flickr, Twitter und Co. haben zu einer Potenzierung und Beschleunigung der ohnehin vorhandenen ,Kultur des Kopierens’ geführt. Anhand der mehrteiligen Arbeit I’m too sad to tell you des Konzeptkünstlers Bas Jan Ader und deren Nachahmungen und Adaptionen wird hier beispielhaft untersucht, welche Auswirkungen, Potentiale und Begrenzungen sich aus dem Nachahmungsphänomen ableiten lassen und inwiefern der über die Videoplattformen erstellte User-Generated-Content als Archiv- und Quellenmaterial für eine künstlerische Forschung fungieren kann.

Die mobile Kartographie bedient sich dem mobilen Internet und der zivilen Nutzung des GPS-Signals. Der damit einhergehenden Mobilität des Benutzers, aber auch den technischen Schranken mobiler Endgeräte (wie geringen Prozessorleistungen, kleinen Displays und begrenzten Batterielaufzeiten) muss in Form einer Adaption der mobilen Karten Rechnung getragen werden. Die Adaption geschieht hinsichtlich des Informationsbedarfs, der sich aus dem aktuellen Nutzungskontext des Benutzers (d.h. seiner räumlich-zeitlichen Situation, seinen Interessen, Aufgabenkontext, aktuellen Umständen, Zielen, Bedürfnissen etc) ableiten lässt sowie hinsichtlich des Interaktionsgrades und der Interaktionsarten. Ein weiterer Aspekt mobiler Kartographie sind nutzergenerierte Inhalte. Dank der ständigen Verfügbarkeit des Internets und einer unkomplizierten Art der Positionsbestimmung können auch Amateurnutzer problemlos selber räumliche Daten erheben und veröffentlichen. Der Kartograph rückt damit mehr in den Hintergrund und stellt sein Fachwissen in Form von Komponenten wie Basiskarten, Software oder Interaktionsmöglichkeiten zur Verfügung. Dadurch bedürfen traditionelle kartographische Kommunikationsmodelle hinsichtlich der mobilen Kartographie einer grundsätzlichen Weiterentwicklung, da eine strikte Trennung in Kartenhersteller und Kartennutzer nicht mehr vorgenommen werden kann. Die vorliegende Diplomarbeit stellt ein abgeleitetes kartographisches Kommunikationsmodell für mobile, interaktive Karten vor. Ein Anwendungsgebiet der mobilen Kartographie sind mobile touristische Applikationen, welche im mobilen Technologie- und Informationszeitalter eine zeitgemäße Form der Reiseinformation und des Reiseservices darstellen. Im Rahmen dieser Arbeit wurden verschiedene existierende touristische Anwendungen für Smartphones analysiert und eine eigene mobile Kartenapplikation für Wanderungen in der Pilotregion Sächsische Schweiz konzipiert und prototypisch implementiert. Diese Applikation schlägt Wanderrouten vor, liefert zahlreiche Informationen sowie Kartenmaterial und ist an den Wanderkalender der Sächsischen Zeitung angelehnt, welcher jährlich von Kartographie-Studenten der Technischen Universität Dresden erarbeitet wird. / Mobile cartography makes use of mobile internet and the civil utilisation of the GPS signal. The resulting mobility of the user as well as technical restrictions of mobile devices (such as low processor performance, small display sizes and limited battery life) has to be taken into account in the form of an adaption of mobile maps. The adaption is carried out with regard to the current need for information which can be derived from the context of the user (i.e. spatial-temporal situation, interests, task, circumstances, aims, needs etc). Another aspect of mobile cartography is user generated content. The permanent availability of mobile internet as well as the uncomplicated way of location determination makes it easy for amateur users to gather and publish own data. So the cartographer backs out and provides expert knowledge in the form of base maps, software and interaction techniques that can be used by the map user as an user interface for integrating own data. Thereby traditional cartographic communication models require a fundamental further development because a strict separation into map maker and map user can not be made anymore. The diploma thesis introduces a derived cartographic communication model for mobile interactive maps. An application field of mobile cartography are mobile map applications in tourism. These touristic applications are an up-to-date kind of travelling service in the century of mobile technology and information. In the context of this diploma thesis several existing touristic applications for smartphones for were examined and an own mobile application for hiking in Saxon Switzerland was conceived and implemented prototypically. This application suggests hiking trips, provides various information as well as maps and is based on a hiking calendar that is worked out annually by cartography students of Dresden University of Technology.

Los sistemas online para compartir fotos proporcionan una valiosa fuente de contenidos generado por el usuario (UGC). La mayor a de los sistemas de re- cuperaci on de im agenes Web utilizan las anotaciones textuales para rankear los resultados, sin embargo estas anotaciones no s olo ilustran el contenido visual de una imagen, sino que tambi en describen situaciones subjetivas, espaciales, temporales y sociales, que complican la tarea de b usqueda basada en palabras clave. La investigaci on en esta tesis se centra en c omo mejorar la recuperaci on de im agenes en sistemas de gran escala, es decir, la Web, combinando informaci on proporcionada por los usuarios m as el contenido visual de las im agenes. En el presente trabajo se exploran distintos tipos de UGC, tales como anotaciones de texto, anotaciones visuales, y datos de click-through, as como diversas t ecnicas para combinar esta informaci on con el objetivo de mejorar la recuperaci on de im agenes usando informaci on visual. En conclusi on, la investigaci on realizada en esta tesis se centra en la impor- tancia de incluir la informaci on visual en distintas etapas de la recuperaci on de contenido. Combinando informaci on visual con otras formas de UGC, es posible mejorar signi cativamente el rendimiento de un sistema de recuperaci on de im agenes y cambiar la experiencia del usuario en la b usqueda de contenidos multimedia en la Web. / Online photo sharing systems provide a valuable source of user generated content (UGC). Most Web image retrieval systems use textual annotations to rank the results, although these annotations do not only illustrate the visual content of an image, but also describe subjective, spatial, temporal, and social dimensions, complicating the task of keyword based search. The research in this thesis is focused on how to improve the retrieval of images in large scale context , i.e. the Web, using information provided by users combined with visual content from images. Di erent forms of UGC are explored, such as textual annotations, visual annotations, and click-through-data, as well as di erent techniques to combine these data to improve the retrieval of images using visual information. In conclusion, the research conducted in this thesis focuses on the impor- tance to include visual information into various steps of the retrieval of media content. Using visual information, in combination with various forms of UGC, can signi cantly improve the retrieval performance and alter the user experience when searching for multimedia content on the Web. 1

Title: Algebraic Substructures in ℂ Author: Vítězslav Kala Department: Department of Algebra Supervisor: Prof. RNDr. Tomáš Kepka, DrSc., Department of Algebra Abstract: We study the structure of finitely generated semirings, parasemifields and other algebraic structures, developing and applying tools based on the geom- etry of algebraic substructures of the Euclidean space ℂ . To a parasemifield which is finitely generated as a semiring we attach a certain subsemigroup of the semigroup ℕ0 (defined using elements such that + = for some ∈ and ∈ ℕ). Algebraic and geometric properties of carry important structural information about ; we use them to show that if a parasemifield is 2-generated as a semiring, then it is additively idempotent. We also provide a ring-theoretic reformulation of this conjecture in the case of -generated semirings. We also classify all additively idempotent parasemifields which are finitely gen- erated as semirings by using the fact that they correspond to certain finitely generated unital lattice ordered groups. Busaniche, Cabrer, and Mundici [4] re- cently classified these using the combinatorial and geometric notion of a stellar sequence which is a sequences of certain simplicial complexes in [0, 1] . We use their results to prove that each such parasemifield is a finite product of...

Simulações de chamas empregando mecanismos cinéticos detalhados são problemas computacionalmente demandantes. Por esse motivo, mecanismos reduzidos e técnicas de redução de cinética química vêm sendo desenvolvidos buscando uma melhor eficiência computacional. Mecanismos globais de poucos passos são particularmente populares pela simplicidade de programação nos códigos disponíveis. Assim, o objetivo da presente dissertação é avaliar modelagens simplificadas de cinética química na simulação numérica de chamas laminares 1D e 2D de metano diluído com dióxido de carbono. Mecanismos globais de 1, 2 e 4-passos são avaliados em comparação com o mecanismo detalhado GRI-Mech 3.0 na simulação unidimensional de chamas difusivas contra-corrente. O mecanismo global de melhor desempenho é então usado nas simulações bidimensionais de chamas difusivas tipo jato em comparação com a técnica de redução Flamelet-Generated Manifold. Observou-se que o mecanismo de 4-passos estudado apresenta bons resultados para o campo de temperaturas e para as principais espécies químicas, tanto nas simulações unidimensionais quanto nas bidimensionais. No entanto, espécies minoritárias como o CO e H2 não são bem reproduzidas. Fenômenos como posição de estabilização e penetração de oxidante na base de chamas tipo jato também não são capturadas quando o mecanismo global é usado. Por outro lado, a técnica FGM se mostrou capaz de prever tais fenômenos e resultou, adicionalmente, em um ganho computacional expressivo. / Numerical simulations of flames employing detailed kinetic mechanisms are computationally demanding problems. For this reason, reduced mechanisms and techniques of chemical kinetic reduction have been developed aiming better computational efficiency. Global mechanisms formed by few steps are particularly popular due to the simplicity of programing them in available codes. Thus, the objective of the present dissertation is to evaluate simplified chemical kinetics models in 1D and 2D numerical simulations of methane diluted with carbon dioxide laminar flames. Global mechanisms formed by 1, 2 and 4-steps are evaluated in comparison with the detailed mechanism GRI-Mech 3.0 in one-dimensional simulations of counterflow diffusive flames. The global mechanism with best performance is then used in two-dimensional simulations of diffusive jet flames for a comparison with the chemical reduction technique FGM. It was observed that a 4-step mechanism presented good results for temperature and major chemical species for both one and two-dimensional simulations. However, minor species like CO and H2 are not well reproduced. Phenomena such as stabilization position and oxygen penetration in the jet flame base are also not captured when the global mechanism is used. On the other hand, the technique Flamelet- Generated Manifold demonstrated to predict those phenomena and resulted, additionally, in an expressive computational gain.

A simulação numérica de chamas turbulentas é ainda hoje um desafio para as práticas de mecânica dos fluidos computacional. Compreendendo que as abordagens numéricas mais completas e realísticas atualmente disponíveis podem ser computacionalmente proibitivas, diversos modelos vêm sendo desenvolvidos com o objetivo de reproduzir os fenômenos envolvidos na combustão de uma forma simplificada, mas ainda fisicamente consistente. Este trabalho é, portanto, dedicado à comparação de diferentes modelos de fechamento para a turbulência baseados nas equações de Navier-Stokes em médias de Reynolds e de modelos para simplificação da cinética química baseados no conceito de flamelets, com e sem a modelagem da radiação térmica, esta última através do modelo de soma-ponderada-de-gasescinzas. Para tanto, na primeira parte do presente trabalho são comparados seis modelos de turbulência na solução de um jato turbulento de propano, não reativo e isotérmico, circundado por uma corrente paralela de ar, quanto a sua eficiência na predição dos valores médios da velocidade longitudinal e transversal, fração mássica de propano e massa específica da mistura. Os modelos são o k- Padrão (empregado na sua versão original e com mais duas modificações nas suas constantes conforme propostas encontradas na literatura), o k- Realizable, o k- Padrão e o k- Shear-Stress Transport. Um dos modelos de melhor desempenho é então usado na simulação de uma chama turbulenta não pré-misturada de metano/hidrogênio/nitrogênio circundada por um escoamento coaxial de ar de baixa velocidade, no qual são então comparados os modelos para redução da cinética química baseados no conceito de flamelets, o Steady Laminar Diffusion Flamelet (SLDF) e o Flamelet-Generated Manifold (FGM), tendo os seus resultados comparados aos dados experimentais para os valores médios da velocidade longitudinal, fração de mistura, temperatura e frações mássicas das espécies químicas. Dentre os modelos de turbulência avaliados, é observado que as duas versões ajustadas do k- Padrão e o k- Padrão se mostraram com melhor concordância em relação às medições experimentais do que os demais. No presente estudo é também avaliada a consistência dos dados experimentais reportados e uma discrepância é identificada neste jato, mas que, conforme verificado, não compromete a comparação dos modelos aqui proposta. Na solução do escoamento reativo, o modelo SLDF se mostrou com resultados bastante próximos aos resultados experimentais (exceto para o NO), sendo aprimorados ainda mais com a inclusão da modelagem da radiação térmica, sobretudo para regiões mais distantes do bico injetor do combustível, após o pico de temperatura da chama. O modelo FGM, contudo, apresentou resultados muito aquém dos esperados, sobretudo para as frações mássicas das espécies químicas, mesmo utilizando malhas com nível de refinamento muito maior e com o teste de diversas combinações de espécies para a variável de progresso da reação, e no qual a inclusão da radiação na modelagem também não trouxe benefícios perceptíveis. Todas as simulações numéricas foram realizadas empregando o código comercial ANSYS Fluent, versão 15.0.0. / The numerical simulation of turbulent flames is still a challenge for today's computational fluid dynamics practices. Understanding that the most complete and realistic numerical approaches available today may be computationally prohibitive, several models have been developed in order to reproduce the phenomena involved in combustion in a simplified, but still physically consistent, way. Therefore, this work is dedicated to compare different models for turbulence closure based on the Reynolds-averaged Navier-Stokes equations and models for simplification of the chemical kinetics based on the flamelet concept, with and without thermal radiation modeling through the weighted-sum-of-gray-gases model. Thus, in the first part of the current work six turbulence models are employed to solve a turbulent nonreactive isothermal flow, a propane jet surrounded by a parallel stream of air. The models are compared through their effectiveness in predicting the mean values of longitudinal and transversal velocities, propane mass fraction and mixture density. The models are the Standard k- (employed in its original version and with two modifications according to proposals found in the literature), the Realizable k- , the Standard k- and the Shear-Stress Transport k- . One of the best performing models is then used to simulate a turbulent nonpremixed flame of methane/hydrogen/nitrogen surrounded by a low-velocity air coflow, in which are compared the models to reduce the chemical kinetics based on the flamelets concept, the Steady Laminar Diffusion Flamelet (SLDF) and the Flamelet-Generated Manifold (FGM), being the numerical results compared to the experimental data for the mean values of longitudinal velocity, mixture fraction, temperature and species mass fractions. Among the six turbulence models evaluated, it is observed that the two adjusted versions of the Standard k- and the Standard k- showed better agreement with the experimental measurements than the other models. In the current study it is also evaluated the consistency of the reported experimental data and a discrepancy is identified, which, as verified, does not compromise the models comparison here proposed. In the solution of the reactive flow, the SLDF model showed results very close to the experimental results (except for NO), being further enhanced with the inclusion of the thermal radiation modeling, especially for regions far from fuel nozzle, after the peak of temperature of the flame. The FGM model, however, showed results far below the expected, especially for the mass fractions of chemical species, even using meshes with much higher refinement level and testing of various species combinations for the reaction progress variable. The inclusion of the radiation modeling did not brought noticeable benefits. All the numerical simulations were performed employing the ANSYS Fluent version 15.0.0 commercial code.

Introdução: O câncer de pulmão é um dos tipos mais comuns de câncer, sendo ele responsável pelo maior número de mortes por neoplasias no mundo. Pacientes com câncer de pulmão apresentam alta prevalência de desnutrição, que está relacionada com piora do prognóstico. A desnutrição ocorre em 60% dos pacientes no momento do diagnóstico, levando a um mau prognóstico, independente do estágio do tumor. Avaliação nutricional de pacientes com câncer deve ser realizada à luz de qualquer proposta terapêutica, ainda que esta seja paliativa. Neste sentido, o método validado de Avaliação Subjetiva Global Produzida pelo Próprio Paciente (ASG-PPP) e adaptado por Ottery et al para pacientes oncológicos a partir da Avaliação Subjetiva Global, ajuda a identificar precocemente os pacientes que estão em risco nutricional. A nutrição é fundamental nestes pacientes em doença avançada, pois fornece a quantidade adequada de nutrientes, tem um importante papel psicológico, social, espiritual e cultural, além de ajudar a manter um sentido de autonomia e bem-estar. Objetivo: Relacionar a Capacidade Funcional através do índice de Karnofsky e o estado nutricional, sinais e sintomas avaliados pelo método subjetivo (ASG-PPP), com a sobrevida de pacientes com neoplasia pulmonar mestastática. Pacientes e métodos: Trata-se de um estudo transversal, constituído por 51 pacientes, ambos os sexos, portadores de neoplasia pulmonar com doença metastática em estadiamento IIIb e IV, atendidos em nível ambulatorial e hospitalar no Hospital Santa Rita, Complexo Hospitalar Santa Casa de Porto Alegre. A sobrevida dos pacientes foi verificada ao final do estudo, através de revisão de prontuários e contato telefônico com o responsável pelo paciente. Resultados: Os pacientes apresentaram-se com idade 61,84±10,83 anos (40 a 82 anos); 34 (66,7%) eram gênero masculino e 17 (33,3%) do feminino. A mediana do tempo de sobrevida foi de 186 dias (IC 95%: 158,8; 213,2). Os pacientes internados tiveram sobrevida significativamente inferior (mediana=145 dias (IC 95%=135 - 155) aos que foram atendidos ambulatorialmente (mediana=221 dias (IC 95%=199 - 243). Os pacientes em estágio IV tiveram sobrevida significativamente inferior (mediana=176 dias; IC 95%=127 - 225) àqueles em estágio IIIb (mediana=221; IC 95%=147 - 295). Os pacientes com metástase hepática tiveram sobrevida significativamente inferior (mediana=115 dias; IC 95%=74 - 155) aos sem metástase hepática (mediana=199; IC 95%=174 - 224). Os pacientes com metástase pleural apresentaram sobrevida significativamente superior (mediana=386 dias; IC 95%=129 - 643) aos sem metástase pleural (mediana=174; IC 95%=133 - 214). Não houve diferença estatisticamente significativa entre as curvas de sobrevida dos diferentes estágios nutricionais (teste de log rank; p=0,651). Os acamados tiveram sobrevida significativamente inferior (mediana=115 dias; IC 95%=87 - 143) que os com capacidade física normal (mediana=255 dias; IC 95%=202 - 308). Quanto maior a depleção corporal total, pior a sobrevida do paciente (p=0,014). O aumento de 1 ponto neste item da ASG-PPP (RDI=1,70; IC 95%=1,12 – 2,59) pode aumentar o risco de óbito, em média 70%. O índice de Karnofsky também se associou significativamente com a sobrevida (p=0,016), sendo que para um aumento de 10% na escala de nível de desempenho, o risco de óbito diminuiu em 23% (RDI=0,77; IC 95%=0,76 – 0,79). Os sintomas mais prevalentes que afetaram a alimentação entre os pacientes foram a falta de apetite (66,7%), depressão (51%) e dor (39,2%) e os menos relatados foram dor na boca e vômitos (5,9%). Os fatores que permaneceram associados estatisticamente com o óbito após o ajuste pela análise multivariada de Regressão de Cox foram metástase hepática e internação hospitalar como fatores de risco para óbito e metástase pleural e melhor índice de Karnofsky como fatores protetores. Conclusão: A sobrevida dos pacientes eutróficos foi levemente superior a dos pacientes em risco nutricional e a dos severamente desnutridos. Quanto maior a depleção corporal total e pior o índice de Karnofsky maior o risco de óbito. Não foi encontrada uma associação estatisticamente significativa entre os valores de Hemograma, Albumina Sérica e Contagem Total de Linfócitos (CTL) com o estado nutricional da população em estudo e a sobrevida. / Introduction: Lung cancer is one of the most common cancers in the world, and it is today the most lethal of the neoplastic diseases. Patients with lung cancer show high prevalence of malnutrition, the latter being related to worsening of the prognosis. Malnutrition occurs in 60% of the patients at the moment of diagnosis, leading to a bad prognosis, regardless of the tumor stage. Nutritional evaluation of patients with cancer should be conducted in the light of a therapeutic proposal, even if it’s palliative. In this way, the validated method Scored Patient-Generated Subjective Global Assessment (PG-SGA), adapted by Ottery et al for oncologic patients from the questionnaire of Subjective Global Assessment, helps to precociously identify patients that are in nutritional risk. Nutrition is fundamental in these patients with advanced disease for it supplies the adequate amount of nutrients, performs an important psychological, spiritual and cultural role, besides helping to build a sense of autonomy and well-being. Objective: to relate Functional Capacity through the Karnofsky Index and the nutritional state, signs and symptoms evaluated by the subjective method (PG-SGA), to the survival of patients with metastatic pulmonary neoplasia. Patients and methods: It’s a transversal study, constituted by 51 patients, both genders, carriers of pulmonary neoplasia with metastatic disease on stages IIIb and IV, both in and outpatients at Santa Rita Hospital, Complexo Hospitalar Santa Casa de Porto Alegre. The survival of the patients in the study was assessed at the end of the study, through review of the chart and phone contact with the patient’s keeper. Results: The average age is 61.84 (± 10.83 varying between 40 and 82), being 34 (66.7%) male and 17 (33.3%) female. The median of survival is 186 days (CI 95%; 158.8; 213.2). The inpatients have a significantly inferior survival (median=145 days; CI 95%=135 – 155) than the outpatients (median=221 days; CI 95%=199 – 243). Patients on stage IV have a significantly inferior survival (median=176 days; CI 95%=127 - 225) than patients on stage IIIb (median=221; CI 95%= 147 - 295). Patients with hepatic metastasis have a significantly inferior survival (median=115 days; CI 95%=74 - 155) than patients without hepatic metastasis (median=199 days; CI 95%=174 - 224). Patients with pleural metastasis have a significantly superior survival (median=386 days; CI 95%=129 – 643) than patients without pleural metastasis (median=174; CI 95%=133 – 214). There was no meaningful statistical difference between survival curves of different nutritional stages (log rank test; p=0,652). Bedridden patients have a significantly inferior survival (median=115 days; CI 95%=87 – 143) than patients with normal physical capacity (median=255 days; CI 95%=202 – 308). The higher the total body depletion, the lower the patient survival (p=0.014). The increase of 1 point in this item of the PG-SGA (IDR=1.70; CI 95%=1.12 – 2.59) may increase risk of death, averagely, by 70%. Karnofsky index was also significantly associated with survival (p=0.016), seeing that for an increase of 10% in the performance scale the risk of death decreased in 23% (IDR=0.77; CI 95%=0.76 – 0.79). The most prevalent symptoms that affect nourishment among the patients were lack of appetite (66.7%), depression (51%) and pain (39.2%) and the least mentioned were mouth pain and vomit (5.9%). Factors that remain statistically associated with death after the adjust by the multivariate analysis by regression of Cox were hepatic metastasis and hospital internment as risk factors for death, and pleural metastasis and better Karnofsky index as protective factors. Conclusion: The survival of eutrophic patients was mildly superior to that of patients in nutritional risk and to that of severely malnourished patients. The higher the total body depletion and the worse the Karnofsky index, the higher the risk of death. No significant statistical association was found between Hemogram, Serum Albumin, and Total Lymphocyte Count (TLC) with the nutritional status of the population in study and survival.