Submitted by Sara Ribeiro (sara.ribeiro@ucb.br) on 2017-06-29T14:08:20Z No. of bitstreams: 1 DanielleKarineBarbosaOliveiraDissertacao2016.pdf: 1766508 bytes, checksum: 75bf16e7cc732c8cbeefaaf22c395ab5 (MD5) / Approved for entry into archive by Sara Ribeiro (sara.ribeiro@ucb.br) on 2017-06-29T14:08:37Z (GMT) No. of bitstreams: 1 DanielleKarineBarbosaOliveiraDissertacao2016.pdf: 1766508 bytes, checksum: 75bf16e7cc732c8cbeefaaf22c395ab5 (MD5) / Made available in DSpace on 2017-06-29T14:08:37Z (GMT). No. of bitstreams: 1 DanielleKarineBarbosaOliveiraDissertacao2016.pdf: 1766508 bytes, checksum: 75bf16e7cc732c8cbeefaaf22c395ab5 (MD5) Previous issue date: 2016-06-17 / Aging is defined as a complex process, which can undergo several changes as a result of the genetic and environmental factors, characterized by changes in morphological and physiological functions at all levels in the body. Among the environmental factors, diet plays an important role in the degenerative processes that are related to senescence, resulting in a progressive decline in physiological capacity and increased susceptibility and vulnerability to diseases typical of aging, such as chronic non communicable diseases. Much of the incidence of these diseases is associated with poor habits of living and eating people. As a result, they may experience increased blood pressure, overweight, obesity, hyperglycemia and hyperlipidemia. The use of stored natural foods in regular diet of these individuals as dietary fiber, found especially in legumes and fruits, has proved to be an alternative in reducing the risk factors for these diseases. Among these foods highlights the species Passiflora edulis. The use of flour from the bark of this species, also known as passion fruit as a food ingredient, is a great economical option for the use of this byproduct, considering that has several health benefits such as the ability to reduce cholesterol and blood glucose levels in the organism. Allied to this, various research has developed preparations with the use of the flour of the yellow passion fruit peel, making this product sensuously accepted among consumers. Allied to this, various research has developed preparations with the use of the flour of the yellow passion fruit peel, making this product sensuously accepted among consumers. Objectives: This study aimed to evaluate a group of CCI / UCB elderly, the intake of fiber and propose two savory preparations containing flour from the bark of yellow passion fruit as a functional food ingredient and verify the acceptability of the preparations. Methods: First, we analyzed the daily intake of fiber from goers elderly Elderly Community Centre (JRC) of the Catholic University of Brasilia (UCB) through the record 24 (24HR). For the choice of test-preparations were used data from history and 24hR the elderly. The foods selected for insertion of the fiber were the eggplant pie and tapioca. Sensory analysis was performed by 34 untrained panelists, and involved two types of affective tests: assessment of overall impression, using the nominal hedonic scale of nine points, and evaluation of intention to use seven points. For the evaluation of 24HR and preparations, we used the Virtual Nutri Plus?? software. Results: It was observed that all of the sample men ingest an average of fibers 12.71 ?? 5,62g / day, 57.64% below the recommended (30g) and only two women (6.7%) reached the recommendation daily total fiber (21g). The rest of the female sample ingests on average 11.86 ?? 4,84g / day, 43.52% below the recommended fiber value. The inclusion of flour peel of Passiflora edulis (FCPE) in preparing the eggplant pie and tapioca showed acceptance, averaging 8.06 ?? 1.39 and 8.41 ?? 0.99, respectively. Attitude scale tests confirmed that most always consume tapioca (64.7%) and eggplant cake (61.8%). The results of the acceptability index showed the feasibility of addition of passion fruit flour in usual preparations of the elderly with 89.55% for eggplant pie and 93.44% for tapioca. All preparations after insertion of FCP and obtained 3g fiber / 100g of prepared foods, which characterizes a food source of fiber. / O envelhecimento ?? definido como um processo complexo, que pode sofrer v??rias altera????es em decorr??ncia dos fatores gen??ticos e ambientais, caracterizado por modifica????es nas fun????es morfol??gicas e fisiol??gicas em todos os n??veis do organismo. Dentre os fatores ambientais, a alimenta????o desempenha um papel importante nos processos degenerativos que est??o ligados a senesc??ncia, culminando em um decl??nio progressivo na capacidade fisiol??gica e no aumento da suscetibilidade e vulnerabilidade a doen??as t??picas do envelhecimento, como as doen??as cr??nicas n??o transmiss??veis. O uso de alimentos naturais inseridos na alimenta????o habitual dessa popula????o como a fibra alimentar, que possui efeito redutor nos ??ndices glic??micos e colesterol??micos, tem demonstrado ser uma alternativa na redu????o dos fatores de riscos para essas doen??as. Dentre esses alimentos destaca-se o maracuj??, especialmente a esp??cie Passiflora edulis. A utiliza????o da farinha da casca desta esp??cie, tamb??m conhecido como maracuj?? amarelo como ingrediente aliment??cio, representa uma ??tima op????o econ??mica para o aproveitamento desse subproduto, tendo em vista que apresenta diversos benef??cios ?? sa??de, como a capacidade de reduzir os n??veis de colesterol e glicemia no organismo. Este estudo teve como principal objetivo avaliar em um grupo de idosos do Centro de Conviv??ncia de Idosos/Universidade Cat??lica de Bras??lia, a ingesta de fibras e propor duas prepara????es salgadas contendo a farinha da casca do maracuj?? amarelo como ingrediente aliment??cio funcional e verificar a aceitabilidade das prepara????es. Inicialmente, analisou-se a ingesta de fibra di??ria dos idosos frequentadores do Centro de Conviv??ncia do Idoso (CCI) da Universidade Cat??lica de Bras??lia (UCB) atrav??s do recordat??rio 24h (R24h). Para a escolha das prepara????es-teste foram utilizados dados da anamnese e dos R24h dos idosos. Os alimentos selecionados para inser????o da fibra foram a torta de jil?? e a tapioca. A an??lise sensorial foi realizada por 34 provadores n??o treinados, e envolveu dois tipos de testes afetivos: avalia????o da impress??o geral, com uso da escala hed??nica nominal de nove pontos, e avalia????o de inten????o de consumo de sete pontos. Para a avalia????o dos R24h e das prepara????es, utilizouse o software Virtual Nutri Plus??. Observou-se que todos os homens da amostra ingerem uma m??dia de fibras de 12,71??5,62g/dia, 57,64% abaixo do recomendado (30g) e apenas duas mulheres (6,7%) atingiram a recomenda????o di??ria de fibras totais (21g). O restante da amostra feminina ingere em m??dia 11,86??4,84g/dia, 43,52% abaixo do valor recomendado de fibras. A inclus??o de Farinha da Casca da Passiflora edulis na prepara????o da torta de jil?? e tapioca apresentou alta aceita????o, com m??dia de 8,06 ??1,39 e 8,41??0,99, respectivamente. Os testes de escala de atitude confirmaram que, a maioria consumiria sempre a tapioca (64,7%) e a torta de jil?? (61,8%). Os resultados referentes ao ??ndice de aceitabilidade mostraram a viabilidade da adi????o da farinha de maracuj?? em prepara????es habituais dos idosos com 89,55% para a torta de jil?? e 93,44% para a tapioca. Todas as prepara????es ap??s a inser????o da FCPe obtiveram mais de 3g de fibras/100g de alimentos preparados, o que as caracteriza como fontes de fibras, de acordo com a legisla????o brasileira.

Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2015-10-07T21:48:06Z No. of bitstreams: 1 Disserta??o de Mestrado - Marcus Vinicius Araujo Martins.pdf: 17313212 bytes, checksum: c8f53c6ca71e9fd04eb76a8bfaa1f1a1 (MD5) / Made available in DSpace on 2015-10-07T21:48:06Z (GMT). No. of bitstreams: 1 Disserta??o de Mestrado - Marcus Vinicius Araujo Martins.pdf: 17313212 bytes, checksum: c8f53c6ca71e9fd04eb76a8bfaa1f1a1 (MD5) Previous issue date: 2015-07-23 / This dissertation includes the implementation of an investment strategy using the divergence pattern of Technical Analysis indicator MACD. This pattern, when it occurs in historical price series indicate trend reversals and thus signal moments of buying and selling of shares, within the so-called Capital Markets. An investment strategy composed of a pattern detection algorithm divergence of the MACD indicator was implemented and applied to several historical series of american stock prices considering trade volumes, popularity of the company, price volatility and their comparison with returns on random dates market entrance. In addition, a stock portfolio composed of the higher volume trading and more volatile stocks was implemented. These tests considered the period from 2003 to 2013. Another test on definite trend moments and not definite considered the interval from 2000 to 2013. Overall, all the tests and simulations, were obtained positive returns on investments based on past prices using a strategy when compared with simple strategies such as buy a stock and hold it till the end of the period, or in comparison with major indexes in the US market. One can conclude, therefore, that the divergence pattern of the MACD indicator was able to predict reversals trends in stock prices used as reference during the period. / Esse trabalho contempla a implementa??o de uma estrat?gia de investimento utilizando o padr?o de diverg?ncia do indicador de An?lise T?cnica MACD. Esse padr?o, quando ocorre em s?ries hist?ricas de pre?os, indicam revers?es de tend?ncia e, dessa forma, sinalizam momentos de compra e venda de a??es, dentro do que se chama Mercado de Capitais. Uma estrat?gia de investimento composta por um algoritmo de detec??o do padr?o de diverg?ncia do indicador MACD foi implementada e aplicada a diversas s?ries hist?ricas de pre?os de a??es americanas, considerando volume de negocia??es, popularidade da empresa, volatilidade dos pre?os e comparativos com retornos por datas aleat?rias de entrada no mercado. Al?m disso, foi implementada uma carteira de a??es composta pelas empresas de maior volume de negocia??o e volatilidade de pre?os. Esses testes consideraram o per?odo de 2003 a 2013. Outro teste, sobre momentos de tend?ncia definida e n?o definida considerou o intervalo de 2000 a 2013. No geral, em todos os testes e simula??es, foram obtidos retornos positivos sobre investimentos baseados em pre?os passados utilizando a estrat?gia, quando comparado com estrat?gias simples como comprar uma a??o e mant?-la at? o fim do per?odo, ou na compara??o com principais ?ndices do mercado americano. Pode-se concluir, portanto, que o padr?o de diverg?ncia do indicador MACD foi capaz de prever revers?es de tend?ncias nos pre?os das a??es utilizadas como refer?ncia no per?odo considerado.

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-09-05T20:45:02Z No. of bitstreams: 1 2016 - Daniel Castro dos Santos.pdf: 2955105 bytes, checksum: f979a756e7825e9d12a172baf71e4498 (MD5) / Made available in DSpace on 2017-09-05T20:45:02Z (GMT). No. of bitstreams: 1 2016 - Daniel Castro dos Santos.pdf: 2955105 bytes, checksum: f979a756e7825e9d12a172baf71e4498 (MD5) Previous issue date: 2016-04-19 / The objective of this research is to analyze what the ideological discourse of the linked advertising on social networking site Facebook, a Brazilian beer brand. In seeking to achieve this goal, it was possible to question about the relations of power, which in this context are related to the way that an alcoholic beverage demand advertising set up on the receiving audience. If dealing with a product that can cause addiction, social problems and be consumed by an underage audience, it is very important to understand what discursive strategies are employed by the brand. For theoretical foundation was made a literature review about advertising & advertising, online social media, consumer, discourse and ideology. The sources were obtained through desk research of qualitative nature, which lasted two years and six months, starting in January 2013 and ending in June 2015. The research corpus was composed of advertisements with more tanned in each semester , distributed through institutional page of Skol beer brand on Facebook, which totaled ten ads compounds for image and text multimodality. For ideology of identification were categorized eight discursive objects that make up three discursive formations, which are: positioning, educating consumers and consumption as entertainment. The analysis method was Discourse Critical Analysis focused on three-dimensional model of discourse proposed by Fairclough (2001), along with multimodal analysis Machin & Mayr (2012). The results suggest that the Skol beer brand, seeks to sustain consumerism speech order, or market ideology. / O objetivo desta pesquisa consiste em analisar qual o discurso ideol?gico da publicidade vinculada no site de rede social Facebook, de uma marca de cerveja brasileira. Ao buscar alcan?ar esse objetivo, foi poss?vel problematizar sobre as rela??es de poder, que neste contexto est?o relacionadas aos sentidos que uma publicidade de bebida alco?lica procura instaurar no p?blico receptor. Se tratando de um produto que pode causar depend?ncia, problemas sociais e ser consumido por um p?blico menor de idade, ? de grande import?ncia entender quais estrat?gias discursivas s?o empregadas pela marca. Para fundamenta??o te?rica foi feita uma revis?o da literatura sobre publicidade & propaganda, m?dias sociais online, consumo, discurso e ideologia. As fontes foram obtidas por meio de pesquisa documental de cunho qualitativo, que abrangeu dois anos e seis meses, iniciando em Janeiro de 2013 e terminando em Junho de 2015. O corpus de pesquisa foi composto pelas pe?as publicit?rias com maior n?mero de curtidas em cada semestre, distribu?da atrav?s da p?gina institucional da marca de cerveja Skol no Facebook, o que totalizou dez an?ncios compostos pela multimodalidade de imagem e texto. Para identifica??o da ideologia foram categorizados oito objetos discursivos que comp?em tr?s forma??es discursivas, que s?o: posicionamento, educando o consumidor e consumo como entretenimento. O m?todo de an?lise foi a An?lise Cr?tica de Discurso com enfoque no modelo tridimensional de discurso proposto por Fairclough (2001), junto a an?lise multimodal de Machin & Mayr (2012). Os resultados obtidos sugerem, que a marca de cerveja Skol, procura sustentar a ordem do discurso do consumismo.

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-05-11T18:57:29Z No. of bitstreams: 1 2017 - Amanda Antunes da Silva Canelas.pdf: 1228787 bytes, checksum: 9ab4b73f98268b4cca9eb7e1b20ae3d5 (MD5) / Made available in DSpace on 2018-05-11T18:57:29Z (GMT). No. of bitstreams: 1 2017 - Amanda Antunes da Silva Canelas.pdf: 1228787 bytes, checksum: 9ab4b73f98268b4cca9eb7e1b20ae3d5 (MD5) Previous issue date: 2017-02-20 / CAPES / The people who consume foods rich in energy and poor in nutrients that contribute positively to health, combined with a sedentary lifestyle can develop obesity and non-communicable diseases (NCDs) such as diabetes, hypertension, cancer, chronic respiratory diseases, stroke and heart attack. On the other hand, some consumers seek a more balanced diet, either because they are health-conscious or because they want to keep a good physical shape. The diet and light products were developed to meet the demand of individuals affected by NCDs and obesity, as well as those who look for fitness. Diet product refers to food for special purposes, and they are for both individuals who need diet with restriction of nutrients such as carbohydrates, fats, proteins, and sodium; as for those who want to control the intake aiming at controlling the weight. The light product refers to the 25% minimum reduction of some ingredient compared to the traditional counterpart. The production of this type of food increases every year in sale volume. The information on the labels of such products still generates doubts to consumers. This project investigated the perception of consumers regarding diet/light products, using a qualitative approach (Focus group sessions) as well as quantitative, from the Focus Group findings. The qualitative study investigated the level of understanding regarding such as products, the consumers perception of the risks and benefits associated with the consumption of diet and light, as well as the negative and the positive points perceived by them. Non- consumers of diet and light were also interviewed and the reasons for the non-consumption were discussed. The quantitative approach focused on calorie-reduced jams (strawberry and guava in the version diet, light, zero sugar) and the control product (traditional) as case study. For that, a questionnaire was developed and applied, in which 102 individuals of different ages, genders and social classes took part. In addition, participants evaluated the acceptance of all versions of the fruit jellies (strawberry and guava) coded with three digit numbers (blind condition), only observing the packages and observing the packaging together with tasting the product. Results suggest that the level of consumer knowledge on diet and light products is deficient. Taking into account the label influence on product evaluation, the results indicated that the information on the version of the jam (diet, light, zero or traditional) affected the consumer product acceptance and sensory characterization. The traditional and diet strawberry jam versions were more liked by consumers when evaluated in blind; however, with information (looking at the jar of the jams) no difference was found among versions. Considering the guava jams, the traditional, light and zero versions reached higher acceptance means under informed condition when compared to blind. Differences on the frequency of mention of the sensory attributes were observed among the three evaluation conditions for the two jam flavors. / As pessoas que consomem alimentos ricos em nutrientes energ?ticos e pobres naqueles que contribuem de forma positiva para a sa?de, aliado ao sedentarismo podem desenvolver obesidade e doen?as cr?nicas n?o transmiss?veis (DCNT), como diabetes, hipertens?o arterial, c?ncer, doen?as respirat?rias cr?nicas, acidente vascular cerebral e infarto. Por outro lado, certos consumidores buscam uma dieta mais equilibrada, pois est?o preocupados com a sa?de e/ou em manter a boa forma. Para atender ? demanda de indiv?duos acometidos por DCNT e obesidade, assim como aqueles que est?o em busca da boa forma foram desenvolvidos os produtos diet e light. O primeiro refere-se aos alimentos para fins especiais, sendo destinados tanto aos indiv?duos que precisam de dietas com restri??o de nutrientes, como os carboidratos, gorduras, prote?nas, s?dio; quanto ?queles que precisam controlar a ingest?o alimentar visando controle de peso. J? o produto light refere-se ? redu??o m?nima de 25% de algum ingrediente em compara??o ao produto tradicional. A produ??o destes tipos de alimentos cresce a cada ano em volume de vendas. As informa??es contidas nos r?tulos de tais produtos ainda geram d?vidas nos consumidores. Este projeto avaliou a percep??o do consumidor a respeito dos produtos diet e light, utilizando uma abordagem qualitativa (sess?es de Grupo focal) e tamb?m quantitativa, planejada a partir dos achados das sess?es de Grupo Focal. No estudo qualitativo foi investigado o grau de entendimento em rela??o a tais produtos, a percep??o dos riscos e benef?cios associados ao consumo de diet e light, bem como os pontos negativos e positivos percebidos pelos participantes, para algumas categorias destes produtos. N?o consumidores de diet e light tamb?m participaram do estudo tendo sido discutido os motivos do n?o consumo. A abordagem quantitativa enfocou geleias reduzidas em calorias (diet, light, zero a??car nos sabores morango e goiaba) e do produto controle (tradicional) como estudo de caso. Para tal, foi desenvolvido e aplicado um question?rio, no qual participaram 102 indiv?duos de distintas idades, g?neros e classes sociais. Al?m disso, os participantes avaliaram a aceita??o das geleias de frutas (morango e goiaba) nas vers?es tradicional, diet, light e zero, ?s cegas, apenas observando as embalagens dispon?veis no mercado e observando a embalagem e degustando o produto. Os resultados sugerem que o n?vel de conhecimento do consumidor sobre alimentos diet e light ? baixo. Em rela??o ? influ?ncia do r?tulo na avalia??o dos produtos, os resultados indicaram que a informa??o sobre a vers?o da geleia (diet, light, zero ou tradicional) afetou a percep??o dos produtos tanto na aceita??o como na descri??o sensorial dos mesmos. As geleias de morango nas vers?es tradicional e diet foram as mais aceitas pelos consumidores quando avaliadas ?s cegas; por?m, com informa??o (olhando os potes) n?o houve diferen?a entre as quatro vers?es. Em rela??o ?s geleias de goiaba, as vers?es tradicional, light e zero alcan?aram maiores m?dias na condi??o com informa??o quando comparada ?s cegas. Diferen?as na frequ?ncia de men??o dos atributos sensoriais foram observadas entre as tr?s condi??es de avalia??o para os dois sabores de geleia.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-11-03T20:50:56Z No. of bitstreams: 1 JessicaDeAndradePessoa_DISSERT.pdf: 10020769 bytes, checksum: daeec5fd94bc7d6846a49b3d22ead059 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-11-17T19:54:39Z (GMT) No. of bitstreams: 1 JessicaDeAndradePessoa_DISSERT.pdf: 10020769 bytes, checksum: daeec5fd94bc7d6846a49b3d22ead059 (MD5) / Made available in DSpace on 2017-11-17T19:54:39Z (GMT). No. of bitstreams: 1 JessicaDeAndradePessoa_DISSERT.pdf: 10020769 bytes, checksum: daeec5fd94bc7d6846a49b3d22ead059 (MD5) Previous issue date: 2017-07-27 / A ayahuasca ? uma bebida com propriedades psicod?licas amplamente utilizada por popula??es ind?genas da regi?o amaz?nica. Esse preparo cont?m a triptamina psicod?lica N,N-dimetiltriptamina (DMT), e inibidores da monoamina oxidase (iMAO), como harmina e harmalina. A ayahuasca ? considerada um psicod?lico seroton?rgico, e que pode levar a um estado alterado de consci?ncia com semelhan?as a uma experi?ncia on?rica, com intensas altera??es na percep??o, pensamentos, humor, emo??o, e experi?ncias tidas como m?sticas. Correlatos neurais dos efeitos agudos da ayahuasca t?m sido investigados por diferentes t?cnicas de neuroimagem funcional, incluindo a eletroencefalografia (EEG). Neste trabalho exploramos mudan?as espectrais de EEG em 50 volunt?rios saud?veis, utilizando desenho randomizado duplo-cego placebo-controlado. Metade recebeu uma sess?o com a ayahuasca, a outra metade com placebo. Ap?s a administra??o da subst?ncia, os volunt?rios foram monitorados durante 4 horas por um equipamento de EEG. A fim de melhorar a qualidade dos dados, os volunt?rios foram solicitados a realizar 2 tarefas simples em tr?s instantes espec?ficos: antes da ingest?o, 2h e 4 horas ap?s a ingest?o. Na primeira tarefa, deveriam tentar permanecer acordados, e intercalar per?odos de 20 segundos de olhos abertos, e 40 segundos de olhos fechados, durante 5 minutos. Na segunda tarefa, eles deveriam permanecer de olhos fechados, tentando se manter acordados, por outros 5 minutos. A an?lise espectral (2h) revelou que a pot?ncia de alfa ? significativamente menor no grupo ayahuasca que no placebo nas regi?es occipital e temporoparietal ? direita. Encontramos, ainda, aumento significativo em 2h na pot?ncia de teta na regi?o temporoparietal ? direita. A an?lise de correla??o revelou correspond?ncias entre a pot?ncia de alfa (2h) e a pontua??o obtida em duas escalas sens?veis aos efeitos de psicod?licos - a Hallucinogen Rating Scale (HRS) e o Mystical Experience Questionnaire (MEQ). Apresentamos, ainda, achados de tra?ados curiosos, encontrados na inspe??o visual dos tra?ados de EEG. De modo geral, nossos resultados sugerem que a inibi??o das oscila??es alfa em regi?es posteriores do c?rebro desempenha papel importante na experi?ncia psicod?lica, talvez compartilhando mecanismos presentes durante a experi?ncia on?rica. / Ayahuasca is a brew with psychedelic properties largely used by indigenous populations from the Amazon basin. It contains the psychedelic tryptamine N,N-dimethyltriptamine (DMT), and monoamine oxidase inhibitors (iMAO), such as harmine and harmaline. Ayahuasca is consid-ered to be a serotonergic psychedelic, capable of inducing an altered state of consciousness with similarities to an oneiric experience, with intense alterations in perception, though, humor, emo-tion, and mystical-type experiences. The neural correlates of its acute effects have been inves-tigated by different neuroimaging techniques, including electroencephalography (EEG). In this study, we explored EEG spectral changes in 48 healthy volunteers using a randomized double-blind placebo-controlled trial. Half of the volunteers received ayahuasca, half received placebo. We used an EEG system to monitor all volunteers throughout the dosing session, which lasted approximately 4-hours. Aiming to improve data quality, the volunteers were asked to perform two controlled tasks at three specific moments: before intake, 2h and 4h after intake. For the first task, they alternated moments of eyes open (20 seconds) with eyes closed (40 seconds) for 5 minutes, avoiding falling asleep. During the second task they should keep their eyes closed for another 5 minutes, again avoiding falling asleep. Spectral analysis at 2h after intake shows reduced alpha power, and increased theta and beta in the ayahuasca group with respect to the placebo, mainly in occipital and right temporoparietal regions. Correlation analysis revealed correspondences between the alpha power (2h) and individual scores on two scales used to measure psychedelic effects ? the Hallucinogen Rating Scale (HRS) and the Mystical Experi-ence Questionnaire (MEQ). Additionally, we also present EEG traces with electrophysiological events that might be of importance for the representation of the psychedelic experience. Over-all, our results suggest that the inhibition of alpha oscillations, increased theta and beta in right posterior brain regions play an important role on the psychedelic experience, maybe sharing mechanisms present during the oneiric experience.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-01-15T22:16:15Z No. of bitstreams: 1 JoshuaMichaelMartin_DISSERT.pdf: 2221771 bytes, checksum: 74b1d657dbbdcac47f35b00b842db1bc (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-01-18T14:37:21Z (GMT) No. of bitstreams: 1 JoshuaMichaelMartin_DISSERT.pdf: 2221771 bytes, checksum: 74b1d657dbbdcac47f35b00b842db1bc (MD5) / Made available in DSpace on 2018-01-18T14:37:21Z (GMT). No. of bitstreams: 1 JoshuaMichaelMartin_DISSERT.pdf: 2221771 bytes, checksum: 74b1d657dbbdcac47f35b00b842db1bc (MD5) Previous issue date: 2017-12-08 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / A diferen?a entre a menta??o experimentada durante o sono de oculares r?pidos (REM) e o sono n?o-REM persiste como quest?o importante para investiga??o no campo de pesquisa dos sonhos. Estudos anteriores t?m mostrado que os relatos de sonho documentados depois do REM s?o, em m?dia, mais longos, v?vidos, bizarros, emocionais e com aspectos mais narrativos do que os relatos do n?o-REM. Apesar desses achados, falta uma compara??o estrutural entre relatos de sonho do REM e n?o-REM no que diz respeito ? organiza??o de palavra-a-palavra, e diversas medidas tradicionais de sonhos podem ser confundidas pelo comprimento do relato. A an?lise de fala transformada em grafos direcionados de palavras pode ser aplicada para fazer uma avalia??o estrutural de relatos verbais e tamb?m para controlar as diferen?as individuais de verbosidade. No presente estudo, tivemos como objetivo investigar as poss?veis diferen?as na conectividade dos relatos e sua aproxima??o a uma estrutura aleat?ria atrav?s da an?lise de grafos em 125 relatos de sonho obtidos por 19 participantes em despertares controlados nas fases de sono REM e N2. Constatou-se que: (1) grafos do REM possuem uma conectividade maior do que os do N2; entretanto, essas diferen?as n?o foram refletidas na aproxima??o a um grafo rand?mico; (2) diversas medidas de grafo podem predizer avalia??es externas da complexidade do sonho, onde a conectividade aumenta e sua natureza rand?mica cai em rela??o ? complexidade do relato; e (3) o Componente Maior Conectado (LCC) do grafo pode melhorar o ajuste de um modelo contendo o comprimento do relato como vari?vel no discernimento da fase do sono e na predi??o da complexidade do sonho. Esses resultados sugerem que os relatos do REM possuem uma conectividade maior do que os relatos do N2 (i.e. as palavras recorrem com uma dist?ncia maior), o que, em nossa vis?o, est? relacionado a diferen?as subjacentes na complexidade dos sonhos. Esses achados tamb?m apontam para a an?lise de grafos como um m?todo promissor no campo dos sonhos, devido ? sua rela??o com a complexidade do sonho e ao seu potencial de atuar como uma medida complementar ao comprimento do relato. / The extent to which Rapid Eye Movement Sleep (REM) mentation may differ to that of non-REM remains an important area of enquiry in dream research. Previous studies have found that dream reports collected after REM awakenings are, on average, longer, more vivid, bizarre, emotional and story-like compared to those collected after non-REM. Despite this, a comparison of the word-to-word structural organisation of dream reports is lacking, and traditional measures that distinguish REM and non-REM dreaming may be confounded by report length. The analysis of speech as directed word graphs can be suitably applied, as it provides a structural assessment of verbal reports, while controlling for differences in verbosity. In the present study, we aimed to investigate the differences in the connectedness of dream reports and their approximation to a random-like structure through applying speech graph analysis to 125 mentation reports obtained from 19 participants in controlled laboratory awakenings from REM and N2 sleep. We found that: (1) transformed graphs from REM possess a larger connectedness compared to those from N2; (2) measures of graph structure can predict ratings of dream complexity, where increases in connectedness and decreases in their random-like nature are observed in relation to increasing dream report complexity; and (3) the Largest Connected Component (LCC) can improve a model containing report length in predicting sleep stage and dream complexity. These results suggest that REM dream reports have a larger connectedness compared to N2 (i.e. words recur with a longer range), which we interpret to be related to underlying differences in dream complexity. They also point to speech graph analysis as a promising method for dream research, due to its relation to dream complexity and its potential to complement report length in dream analysis.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2018-01-18T10:50:44Z No. of bitstreams: 1 FranciscoAssisVieiraLimaJunior_DISSERT.pdf: 656231 bytes, checksum: f6ccd153b3b8dcff92b89db4dc0c38d4 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2018-01-22T14:47:13Z (GMT) No. of bitstreams: 1 FranciscoAssisVieiraLimaJunior_DISSERT.pdf: 656231 bytes, checksum: f6ccd153b3b8dcff92b89db4dc0c38d4 (MD5) / Made available in DSpace on 2018-01-22T14:47:13Z (GMT). No. of bitstreams: 1 FranciscoAssisVieiraLimaJunior_DISSERT.pdf: 656231 bytes, checksum: f6ccd153b3b8dcff92b89db4dc0c38d4 (MD5) Previous issue date: 2017-11-20 / Introdu??o: apesar da cobertura midi?tica trazer a certeza de uma rela??o entre o V?rus da Zica e microcefalia em rec?m-nascidos, configurando um aumento no agrupamento das anomalias cong?nitas no Nordeste brasileiro, sugere-se que a incid?ncia de anomalia cong?nitas no Rio Grande do Norte n?o seja diferente quando comparada a sua distribui??o espacial antes e ap?s Zica, isso porque fatores como os ambientais, socioecon?micos e biol?gicos podem contribuir para a perman?ncia de uma alta incid?ncia no estado. Objetivo: analisar a distribui??o temporo-espacial das taxas de incid?ncia de anomalias cong?nitas no Rio Grande do Norte, antes e ap?s a epidemia v?rus da zica atrav?s de uma an?lise geoestat?stica e correla??o com os determinantes sociais em sa?de M?todos: trata-se de um estudo epidemiol?gico do tipo ecol?gico, retrospectivo que avaliou os casos notificados de anomalias cong?nitas no Rio Grande do Norte agrupando em dois bi?nios (2005-2006 e 2015-2016), configurando per?odos antes e ap?s a epidemia de zica atrav?s de uma an?lise espacial, cujos dados obtidos do DATASUS e da Secretaria Estadual de Sa?de, foram agrupados no SPSS 13.0 e analisados no Terraview vers?o 4.2.2. Resultados: a taxa de anomalias cong?nitas no per?odo pr?-Zica foi de 11,83 casos/1.000 nascidos vivos e no per?odo p?s-Zica aumentou para 14,24 casos/1.000 nascidos vivos, resultado do aumento dos casos notificados. Foi observada que a mesorregi?o Agreste Potiguar ? a que possui maior n?mero de casos notificados de Zica assim como ? a regi?o que concentra maior n?mero de casos de anomalias cong?nitas no per?odo estudado, estando correlacionada com regi?o com grandes dicotomias sociais. Conclus?es: o presente parece revelar que as anomalias cong?nitas sempre estiveram presentes no estado e nenhuma outra a??o foi suscitada com tamanha import?ncia como no per?odo Zica. Estrat?gias para minimizar os casos de anomalias cong?nitas atrav?s de a??es de planejamento familiar, controle da idade materna, programas de vacina??o, controle na venda de medicamentos abortivos, combate ao consumo de drogas, ?lcool e fumo podem facilmente ser desenvolvida e ganhar ades?o midi?tica, fato que nem sempre ? percebido, tendo a m?dia dado um enfoque ao aumento dos casos de notifica??o sem buscar entender o processo. / Introduction: although the media coverage provides certainty of a relationship between the Zika virus and microcephaly in newborns, which is an increase in the grouping of congenital anomalies in the Brazilian Northeast, it is suggested that the incidence of congenital anomaly in Rio Grande do Sul North isn?t different when compared to its spatial distribution before and after Zika, because factors such as environmental, socioeconomic and biological can contribute to the permanence of a high incidence in the state. The objective of the present study is to analyze the temporal-spatial distribution of the incidence rates of congenital anomalies in Rio Grande do Norte, before and after the epidemic virus Zika through a geostatistical analysis and correlation with the social determinants in health. Methods: this is an ecological that evaluated the reported cases of congenital anomalies in Rio Grande do Norte before and after the Zika epidemy through a spatial analysis, whose data were grouped in SPSS 13.0 and analyzed in Terraview version 4.2.2. Results: the rate of congenital anomalies in the pre-Zika period was 11.83 cases / 1.000 live births and in the post Zika period it increased to 14.24 cases/1.000 live births, a result of the increase in reported cases. It was visualized that the Agreste Potiguar mesoregion is the one with the highest number of reported cases of Zika, as it is the region that concentrates the largest number of cases of congenital anomalies in the period studied, being correlated with the region with great social dichotomies. Conclusion: the present study revealed that congenital anomalies were always present in the state and no other action was raised with such importance as in the Zika period. Strategies to minimize cases of congenital anomalies through family planning actions, maternal age control, vaccination programs, control in the sale of abortive drugs, drug, alcohol and tobacco use can easily be developed and gain media adherence, fact which is not always perceived, the media having given a focus to the increase of the cases of notification without seeking to understand the process.

Made available in DSpace on 2014-12-17T14:06:51Z (GMT). No. of bitstreams: 1 FranciericAA.pdf: 3105945 bytes, checksum: 434348633df1dedcb6e622baefde201e (MD5) Previous issue date: 2009-03-26 / This work aims to develop a methodology for analysis of images using overlapping, which assists in identification of microstructural features in areas of titanium, which may be associated with its biological response. That way, surfaces of titanium heat treated for 08 (eight) different ways have been subjected to a test culture of cells. It was a relationship between the grain, texture and shape of grains of surface of titanium (attacked) trying to relate to the process of proliferation and adhesion. We used an open source software for cell counting adhered to the surface of titanium. The juxtaposition of images before and after cell culture was obtained with the aid of micro-hardness of impressions made on the surface of samples. From this image where there is overlap, it is possible to study a possible relationship between cell growth with microstructural characteristics of the surface of titanium. This methodology was efficient to describe a set of procedures that are useful in the analysis of surfaces of titanium subjected to a culture of cells / O presente trabalho tem como objetivo desenvolver uma metodologia de an?lise de imagens, utilizando sobreposi??es, que auxilie na identifica??o de caracter?sticas microestruturais, em superf?cies de tit?nio, que possam estar associadas com a sua resposta biol?gica. Desse modo, superf?cies de tit?nio tratadas termicamente de 08(oito) diferentes maneiras foram submetidas a um ensaio de cultura de c?lulas. Buscou-se uma rela??o entre os gr?os, textura e contornos de gr?os da superf?cie de tit?nio (atacada) procurando relacionar com o processo de prolifera??o e ades?o. Foi utilizado um software open source para a contagem das c?lulas aderidas ? superf?cie do tit?nio. A justaposi??o das imagens antes e ap?s a cultura de c?lulas foi obtida com o aux?lio de impress?es de micro-dureza feita sobre a superf?cie das amostras. A partir desta imagem onde h? a sobreposi??o, ? poss?vel o estudo de uma poss?vel rela??o entre o crescimento celular com as caracter?sticas microestruturais da superf?cie de tit?nio. Essa metodologia se mostrou eficiente ao descrever um conjunto de procedimentos que s?o ?teis na analise de superf?cies de tit?nio submetidos a uma cultura de c?lulas

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-08-16T20:26:43Z No. of bitstreams: 1 IsacBarbosaDeAlmeida_DISSERT.pdf: 2821753 bytes, checksum: df59d2e78eb7f99cfa9a96085f3eae4c (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-08-18T21:53:45Z (GMT) No. of bitstreams: 1 IsacBarbosaDeAlmeida_DISSERT.pdf: 2821753 bytes, checksum: df59d2e78eb7f99cfa9a96085f3eae4c (MD5) / Made available in DSpace on 2016-08-18T21:53:45Z (GMT). No. of bitstreams: 1 IsacBarbosaDeAlmeida_DISSERT.pdf: 2821753 bytes, checksum: df59d2e78eb7f99cfa9a96085f3eae4c (MD5) Previous issue date: 2016-05-06 / Com a intensa utiliza??o de rolamentos em diversos segmentos da ind?stria, h? um elevado n?mero de pausas necess?rias nos processos industriais para a realiza??o de manuten??es nesses dispositivos, tendo como estudo de caso os aerogeradores. O crescimento do setor de energia e?lica, incentivou a realizar uma pesquisa que auxilie a solu??o desse problema. Para contribuir com a manuten??o preventiva foi realizado uma an?lise de sinais aplicando t?cnicas que permitem a detec??o e a localiza??o do problema a fim de evitar acidentes e preju?zos ocasionados por falhas inesperadas nos equipamentos, visto que a baixa rota??o do sistema dificulta a detec??o da falha. Para solucionar esse item, realizou-se a determina??o de sinais padr?o para os defeitos nos rolamentos, facilitando o diagn?stico de poss?veis falhas. Com esse diagn?stico pode ser executada uma manuten??o preventiva, identificando a falha do sistema que foram testadas, como a introdu??o de gr?os de areia no rolamento, desgaste na pista externa do rolamento e oxida??o do rolamento. Atrav?s do processamento de sinais ? poss?vel construir os gr?ficos desenvolvendo um mapeamento dos defeitos atrav?s de diferentes picos nas faias de frequ?ncia. / With the heavy use of bearings in various segments of the industry, there are a large number of necessary interruptions in industrial processes to perform maintenance on these devices, with the case study wind turbines. The growth of the wind energy sector, encouraged to conduct research that helps to solve this problem. To contribute to predictive maintenance has been carried out a signal analysis using techniques which allow detection and location of the problem in order to prevent accidents caused and losses due to unexpected equipment failures, whereas low system rotation complicates the detection of the failure. To work around this problem, there was the indication of standard signals for defects in the bearings, making diagnosis of possible failures. With this diagnosis can be performed predictive maintenance, identifying the failure of the system that were tested, such as the introduction of grains of sand in the bearing, wear on the outer race of the bearing and bearing rust. By processing signals it is possible to construct graphs developing a mapping of defects by different peaks in the frequency band.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-08-27T00:05:27Z No. of bitstreams: 1 LauraKyokoHonda_DISSERT.pdf: 3602339 bytes, checksum: 032b9ed8e00a45dd021013799bd260c5 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-08-31T23:45:07Z (GMT) No. of bitstreams: 1 LauraKyokoHonda_DISSERT.pdf: 3602339 bytes, checksum: 032b9ed8e00a45dd021013799bd260c5 (MD5) / Made available in DSpace on 2016-08-31T23:45:07Z (GMT). No. of bitstreams: 1 LauraKyokoHonda_DISSERT.pdf: 3602339 bytes, checksum: 032b9ed8e00a45dd021013799bd260c5 (MD5) Previous issue date: 2016-03-03 / Estudos sobre movimenta??o podem fornecer diversos tipos de informa??es sobre a ecologia de diferentes grupos animais, desde padr?es de uso de habitat at? infer?ncias sobre estados comportamentais. O presente trabalho tem como objetivo a caracteriza??o dos padr?es de movimenta??o em fina escala dos machos cantores de Jubarte em um s?tio reprodutivo para detectar efeitos da abund?ncia de machos cantores e da presen?a de embarca??es. Adicionalmente, buscou-se verificar se ? poss?vel fazer infer?ncias sobre os estados comportamentais dos cantores atrav?s das suas trajet?rias. A coleta dos dados foi feita utilizando-se arranjos de gravadores ac?sticos aut?nomos desenvolvidos pelo Programa de Pesquisas em Bioac?stica da Universidade de Cornell - EUA. O estudo foi realizado no s?tio reprodutivo das baleias Jubarte do Pac?fico Sul Ocidental localizado no Banco dos Abrolhos-BA durante a temporada reprodutiva de 2005. Os machos cantores de Jubarte foram identificados atrav?s da detec??o dos seus sons por meio da inspe??o visual dos espectrogramas das grava??es. As posi??es dos cantores foram estimadas atrav?s da localiza??o de cada som identificado com boa qualidade em pelo menos 3 dos 5 canais de ?udio atrav?s de algoritmo customizado em ambiente MATLAB. Da mesma forma foi realizada a detec??o dos eventos de embarca??es. As trajet?rias foram constru?das a partir dos pontos de localiza??o ap?s uso do filtro Kalman. As trajet?rias foram classificadas em categorias de abund?ncia de cantores (baixa = at? dois cantores e alta = a partir de tr?s cantores) e de presen?a de barco (presen?a e aus?ncia). Fun??es de distribui??o de probabilidade foram constru?das a fim de testarmos, por meio da an?lise de m?xima verossimilhan?a, qual distribui??o se ajustaria melhor aos nossos dados. Foi feita uma sele??o de modelos concorrentes incluindo como modelos as categorias de an?lise (abund?ncia e presen?a de barcos) e as fun??es de distribui??o ajustadas aos dados. A vari?vel preditora utilizada foi a velocidade. O melhor modelo foi escolhido com o Crit?rio de Informa??o de Akaike corrigido para pequenas amostras (AICc). Os padr?es de movimenta??o descritos diferiram de estudos pr?vios. Nossas categorias de an?lise n?o se mostraram boas para a explicar a varia??o dos dados, mas os modelos foram capazes de identificar dois padr?es distintos de movimenta??o de machos cantores de jubarte: passos lentos e constantes caracterizando um estado comportamental explorat?rio intercalados por raros passos r?pidos que caracterizam um movimento direcional. As motiva??es para a altern?ncia entre os diferentes estados comportamentais provavelmente envolvem diferentes estrat?gias reprodutivas. Nossos resultados mostraram que trajet?rias baseadas em dados ac?sticos podem ser utilizadas para a infer?ncia de estados comportamentais distintos de baleias jubarte atrav?s da an?lise dos padr?es de movimenta??o. / Studies on movement may provide various types of information on the ecology of different animal groups, from perception and habitat use to inferences on behavioral states. This study aims to characterize movement patterns in thin range of male humpback singers at a reproductive site and to detect effects of singing males abundancy and presence of vessels. Additionally, we verified if it is possible the inference of different behavioral states of singer males through their trajectory. Data collection was done using arrangements of autonomous acoustic recorders developed by the Bioacoustics Research Program of Cornell University ? EUA. The study was conducted at the reproductive site of the humpback whales from the Western South Pacific, located at the Abrolhos Bank, state of Bahia, Brazil, during the reproductive season of 2005. Singing humpback males were identified through the detection of their sounds by visual inspection of the recording spectrograms. Singers positions were estimated through location of each sound identified with good quality in at least three of five audio channels through a custom algorithm in a MATLAB environment. Detection of vessels events was done the same way. Trajectories were built from location points after using the Kalman filter. Trajectories were arranged in categories such as singers abundancy (low = up to two singers and high = from three singers on) and vessel presence (presence and absence). Functions of probability distribution were built for us to test, by likelihood analysis, which distribution adjusts better to our data. A selection of competing models was done, including as models analysis categories (abundancy and presence of vessels) and distribution functions adjusted to our data. The predictor variable used was speed of each step. The best model was selected with Akaike?s Information Criterion corrected for small samples (AICc). Movement patterns described differed from previous studies. Our analysis categories were not good to explain data variation, but models were capable of identifying two distinct movement patterns of humpback male singers: slow and constant steps characterizing an exploratory behavioral state interpolated by rare fast steps which characterize a directional movement. Motivations for variation between different behavioral states probably involve different reproductive strategies. Our results showed that trajectory based on acoustic data can be used to infer distinct behavioral states o humpback whales through the analysis of movement patterns.