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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
111

Transtorno do p?nico: investiga??o sobre altera??es de relato em terapia anal?tico-comportamental.

Siebert, Graziela 01 February 2006 (has links)
Made available in DSpace on 2016-04-04T18:27:27Z (GMT). No. of bitstreams: 1 Graziela Siebert.pdf: 1011844 bytes, checksum: 8cc453da65d734b48b6fc0795fde9f8d (MD5) Previous issue date: 2006-02-01 / Universidade Estadual Paulista J?lio de Mesquita Filho / Panic Disorder is one of the most frequent and incapability problems among anxiety disturbing, representing one of major reasons people look for health support in Brazil and in world. The Behavior Analyses Therapy constitutes a treatment propose with very satisfactory results, focusing on the relation between clients felt and described symptoms and the operation contingencies, of which his/her behavior means the functions. The fully removal of symptoms (private events described by client) may occur since contingencies changing. The goal of this present work is to verify the changing occurrence from a verbal report of a client (25 years old) diagnosed with Panic Disorder by a psychiatrist. The changes occurred were verbalizations on auto-analyses and symptom descriptions for observation report and description of the relation among behavior/symptoms/environment, creating an initial strategy for psychotherapy treatment of such disorder. First eleven psychotherapy sessions were recorded and transcribed, and verbalizations were divided into categories by three independent judges - categories of client verbalization: Symptom, Environment, Behavior, Symptom/ Environment, Others; and functional categories of therapist verbalizations: Information, Investigation, Feedback, Advice/Rule, Interpretations, Others. Results have demonstrated as an answer for therapy intervention an important decrease on client verbalization frequency concerning category of symptom and an increase on category concerning symptom/environment. Those results contribute with clinical practice based on Radical Behaviorism philosophy, by demonstrating, in a natural clinical situation, that client behavior statement is selected (by therapist), as any other behavior, following the behavior concept as a result of environmental concern. / O Transtorno do P?nico ? um dos mais freq?entes e incapacitantes problemas dentre os transtornos ansiosos, representando um dos motivos de maior procura dos servi?os de sa?de no Brasil e no mundo. A Terapia Anal?tico-Comportamental constitui uma proposta com resultados bastante satisfat?rios para seu tratamento, e seu enfoque ? o esclarecimento da rela??o entre os sintomas sentidos e descritos pelo cliente e as conting?ncias em opera??o, das quais seus comportamentos s?o fun??o. A completa remo??o dos sintomas (eventos privados descritos pelo cliente) poder? ocorrer em conjunto com a altera??o das conting?ncias. O objetivo do presente trabalho foi verificar a ocorr?ncia da mudan?a do relato verbal de uma cliente (25 anos) diagnosticada com Transtorno do P?nico por um psiquiatra. A mudan?a ocorrida foi de verbaliza??es sobre auto-observa??o e descri??o de sintomas para o relato de observa??o e descri??o da rela??o comportamento / sintoma / ambiente, compondo uma estrat?gia inicial para o tratamento psicoterap?utico deste transtorno. Foram gravadas e transcritas as onze primeiras sess?es de psicoterapia, e as verbaliza??es categorizadas por tr?s juizes independentes - categorias para verbaliza??es da cliente: Sintoma, Ambiente, Comportamento, Sintoma / Ambiente, Outras; e categorias funcionais para verbaliza??es do terapeuta: Informa??o, Investiga??o, Feedback, Conselhos / Regras, Interpreta??es, Outras. Os resultados demonstraram uma diminui??o acentuada na freq??ncia de verbaliza??es da cliente referentes ? categoria sintoma e um aumento na freq??ncia da categoria rela??o sintoma / ambiente, como produto da interven??o terap?utica desenvolvida. Estes resultados contribuem com a pr?tica cl?nica baseada na filosofia do Behaviorismo Radical, por demonstrar, em uma situa??o cl?nica natural , que o comportamento da cliente de relatar ? selecionado (no caso, pelo terapeuta), como qualquer outro comportamento, seguindo uma concep??o de comportamento como produto de rela??es ambientais.
112

Investigação da acalásia do esfíncter anal interno por meio da eletromanometria de pacientes chagásicos obstipados com e sem megacolo (Goiânia-Goiás-Brasil) / Investigation of the internal anal sphincter achalasia by electromanometry of constipated patients with Chagas disease with and without megacolon (Goiania, Goias, Brazil)

ALMEIDA, Arminda Caetano de 02 February 2012 (has links)
Made available in DSpace on 2014-07-29T15:25:19Z (GMT). No. of bitstreams: 1 Tese Arminda C de A Leite.pdf: 1276473 bytes, checksum: 523ec1cf9ec873a814b205b4cce56e0e (MD5) Previous issue date: 2012-02-02 / Chagas disease remains as an important public health challenge in South America. The Chagas colopathy is considered the second clinical digestive manifestation most common of the disease and constipation chronic, its main symptom. The general objective was to investigate the presence of achalasia, through electromanometry of the internal anal sphincter, in constipated chagasic patients with and without megacolon. This study evaluated clinical and electromanometry parameters of 64 patients with symptoms of constipation, attended on the service of coloproctologya on a university hospital in Brazil, central region. The achalasia was present in 91.3% (IC95% 74.13 to 98.52) of patients with megacolon and/or megarecto (Group 1), in 47.29% (IC95% 27.29 to 68.57) without megacolon and/or megarecto (Group2), and was not present in patients of the control group (Group 3). The rectal capacity was 309.1, 159.2 and 150.1 ml in the groups 1, 2 and 3 respectively. In conclusion the electromanometry detects achalasia of the internal anal sphincter in almost totality of patients with megacolon and/or megarecto. The megacolon presence in constipated patients with Chagas Disease alert to the possibility of occurrence of achalasia on the internal anal sphincter. In chronically constipated patients with positive serology for Chagas Disease, without megacolon the a finding of absence of the recto anal inhibitory reflex, by electromanometry, can definitively prove the Chagas colopathy, while the presence of reflection departs, at the time, this diagnosis, should these patients be followed and treated like other patients with constipation due to other causes The comparison of clinical manifestations in the three groups not evidenced differences that could distinguish patients with Chagas colopathy those with functional constipation, reaffirming the importance of holding the electromanometry in Chagasic and constipated patients. / A doença de Chagas permanece um importante desafio para a saúde pública no continente sul americano. A colopatia chagásica é considerada a segunda manifestação clínica digestiva mais comum da doença e a obstipação intestinal crônica, seu principal sintoma. O objetivo geral foi investigar a presença de acalásia, por meio da eletromanometria do esfíncter anal interno, em pacientes chagásicos obstipados com e sem megacolo. O presente estudo avaliou parâmetros clínicos e eletromanométricos de 64 pacientes com sintoma de obstipação intestinal, atendidos no serviço de coloproctologia de um hospital universitário da região central do Brasil HC/UFG. A acalásia esteve presente em 91,3% dos pacientes com megacolo e/ou megarreto (Grupo 1), em 47,29% dos sem megacolo e/ou megarreto (Grupo 2) e em nenhum dos pacientes do grupo controle (Grupo 3). A capacidade retal foi de 309,1, 159,2 e 150,1 mL nos Grupos 1, 2 e 3 respectivamente. O presente estudo concluiu que a presença de megacolo em pacientes obstipados chagásicos alerta para a possibilidade de ocorrência de acalásia do esfincter anal interno, uma vez que foi detctada na grande maioria dos pacientes. Em pacientes obstipados crônicos, com sorologia positiva para doença de Chagas, sem megacolo a constatação da ausência do reflexo inibitório retoanal, pela eletromanometria, pode de forma definitiva comprovar a colopatia chagásica. Por outro lado, a presença do reflexo afastaria, naquele momento, esse diagnóstico, devendo esses pacientes serem seguidos e tratados como os demais portadores de obstipação por outras causas. A comparação das manifestações clínicas nos três grupos não evidenciou diferenças que pudessem distinguir pacientes com colopatia chagásica daqueles com obstipação funcional, reafirmando a importância da realização da eletromanometria em pacientes chagásicos e obstipados. Todo paciente portador de obstipação intestinal, com sorologia positiva para doença de Chagas no qual o enema opaco não revele megacolo e/ou megarreto, deverá ser submetido à eletromanometria para pesquisa de acalásia do esfíncter interno do ânus, para a conclusão do diagnóstico e condução do tratamento.
113

Introdu??o ao evidencialismo em epistemologia

Danilevicz, Igor 24 August 2018 (has links)
Submitted by PPG Filosofia (filosofia-pg@pucrs.br) on 2018-09-17T18:07:38Z No. of bitstreams: 1 DIS_IGOR DANILEVICZ.pdf: 1094423 bytes, checksum: 99d196d8f4216de68382957117ea2321 (MD5) / Approved for entry into archive by Sheila Dias (sheila.dias@pucrs.br) on 2018-09-18T11:21:55Z (GMT) No. of bitstreams: 1 DIS_IGOR DANILEVICZ.pdf: 1094423 bytes, checksum: 99d196d8f4216de68382957117ea2321 (MD5) / Made available in DSpace on 2018-09-18T11:28:41Z (GMT). No. of bitstreams: 1 DIS_IGOR DANILEVICZ.pdf: 1094423 bytes, checksum: 99d196d8f4216de68382957117ea2321 (MD5) Previous issue date: 2018-08-24 / This dissertation addresses the evidentialism in the light of contemporary analytical epistemology or the theory of knowledge, notably that sustained by Richard Feldman and Earl Conee. In the first part of the paper I approach the theories of internalist and externalist justification as theories that deal with the origin of justification. Then I try to relate them to theories about the structure of justification. From this perspective, internalism was related to foundationalism, coherentism and infinitism. And, externalism has been related to causal theory, tracking theory, reliabilism, and the theory of proper function. In the second part, the Evidentialist Theory of Judgment or Evidentialism in Conee & Feldman is discussed, where besides the definition of evidence I present the classification between synchronic justification and diachronic justification, as well as propositional justification and doxtic justification. The second part also examines the relationship between 'epistemic justification and truth' and the relation between 'evidence and belief', also addressing the principle of underdetermination and some objections to the evidentialism of Conee & Feldman. / O presente trabalho pretende ser uma introdu??o ao evidencialismo em epistemologia anal?tica contempor?nea ou teoria do conhecimento, destacadamente ?quele sustentado por Richard Feldman e Earl Conee. Na primeira parte do trabalho eu abordo as teorias da justifica??o internista e externista como teorias que tratam da origem da justifica??o. Em seguida procuro relacionar as mesmas com teorias sobre a estrutura da justifica??o. Por essa perspectiva o internismo foi relacionado com o fundacionismo, o coerentismo e o infinitismo. E, o externismo foi relacionado com a teoria causal, a teoria do rastreamento, o confiabilismo e a teoria da fun??o apropriada. Na segunda parte ? abordada a Teoria Evidencialista da Jutisfica??o ou Evidencialismo em Conee e Feldman, onde al?m da defini??o de evid?ncia apresento a classifica??o entre justifica??o sincr?nica e justifica??o diacr?nica, bem entre justifica??o proposicional e justifica??o dox?stica. Ainda, nessa segunda parte ? examinada a rela??o entre ?justifica??o epist?mica e verdade? e a rela??o entre ?evid?ncia e cren?a?, abordando tamb?m o princ?pio da subdetermina??o e algumas obje??es ao evidencialismo de Conee e Feldman.
114

Drug Use and Risk Behavior Patterns for HIV in Men Who Have Sex with Men

Chakragiri, Arathi M 28 April 2008 (has links)
Men who have sex with men (MSM) account for a majority of all men currently diagnosed with AIDS. MSM is also recognized as the largest risk category of all AIDS cases. Drug use has been shown to have a synergistic effect on the prevalence of HIV in the MSM population. The study aimed to examine the association between injection drug use, non-injection drug use, and non-drug use with sexual risk behaviors for HIV in men who have sex with men. Secondary, cross-sectional data procured from the National HIV Behavioral Surveillance System for the Atlanta Metropolitan Survey Area were used for the study. The study population was 960 participants. Using binary logistic regression analyses, the drug use categories were studied for unprotected intercourse, unprotected receptive anal intercourse and HIV status. Strong associations were seen independently for unprotected intercourse, unprotected receptive anal intercourse, and HIV status with injection and non injection drug use, but the association weakened for drug use categories when controlled for other independent factors. Taking into account current findings and findings from previous research, the importance of clinical significance over statistical significance was considered. Racial disparities were evident, in that, although the Black participants showed no increased odds for sexual risk factors or drug use, it had a higher odds for being HIV positive compared to Whites. Combining Viagra/Levitra with drugs was significantly associated with unprotected intercourse (AOR=1.9), and each individual drug showed a different degree of association with Viagra/Levitra. Further research is recommended to identify sub-populations at risk and appropriately allocate resources and channel programs and interventions.
115

Seksualinis prievartavimas ir šio nusikaltimo panašumai ir skirtumai nuo išžaginimo / Sexual assault and this crime’s similarities and differences between rape

Audinytė, Laura 05 February 2013 (has links)
Nusikaltimai žmogaus seksualinio apsisprendimo laisvei ir neliečiamumui 1961 m. galiojusiame baudžiamajame kodekse išdėstyti kiek kitaip. Baudžiamoji atsakomybė už lytinės aistros tenkinimą natūraliu, oraliniu bei analiniu būdu buvo reglamentuota viename kodekso straipsnyje – „Išžaginimas“ ir saugojo tik moters seksualinio apsisprendimo laisvę ir nepilnametės seksualinį neliečiamumą. Įsigaliojus naujajam LR BK, išžaginimo norma išskirta į du nusikaltimus – išžaginimas ir seksualinis prievartavimas tokiu būdu iš išžaginimo normos „atimant“ oralinį ir analinį nusikaltimo padarymo būdus bei papildant nauju požymiu – kitoks fizinis sąlytis. Reikalingumą kriminalizuoti lytinės aistros tenkinimą kitokio fizinio sąlyčio būdu sąlygojo kintantys visuomenės santykiai ir atsirandančios vis naujos lytinės aistros tenkinimo kitokio fizinio sąlyčio būdu formos. Tačiau dėl plačiai suformuluotos minėto požymio koncepcijos teismai susiduria su šio požymio kvalifikavimo problemomis. Taip pat iškilo ir lytinės aistros tenkinimo su mažamečiu atribojimo nuo mažamečio asmens tvirkinimo bei seksualinio prievartavimo ir išžaginimo tęstinumo ir šių nusikaltimų kvalifikavimo iš sutapties problemos. Atsižvelgiant į šių nusikaltimų kvalifikavimo problemas, išžaginimo nebelaikant pačia pavojingiausia lytinės aistros tenkinimo forma, lyginant šiuos nusikaltimus pavojingumo, pasekmių atžvilgiu bei atsižvelgiant į tai, kad šių nusikaltimų objektas yra toks pat, kyla abejonės dėl išžaginimo normos... [toliau žr. visą tekstą] / Crimes against person‘s self-determination and inviolability in 1961 Criminal Code were regulated differently. Criminal liability for sexual satisfaction in a natural, oral or anal way was regulated by a single article of the code – „rape“ and protected only woman‘s self-determination and minor sexual inviolability. Due to effect of the new Criminal Code the rate of rape divided into two crimes – rape and sexual assault taking away the oral and anal way from rape and adding a new feature – other physical contact. The need to criminalize sexual desire satisfaction in other physical contact method resulted in changing public reactions and emerging a new sexual passion for satisfying other forms of physical contact way. However, due to widely formulated concept of this character, courts faced with this character qualification problems. they also had a problem with finding the borderline between young person‘s sexual abuse and satisfaction of sexual passion with young person. also there are sexual assault and rape of continuity and qualificaion of these crimes in coincidence problems. In view of the problems of qualification of these crimes, rape not being considered the most dangerous form of sexual desire satisfaction, comparing these crimes hazard, result and taking into account the fact that the object of these crimes is the same, there are doubts of rape extraction into two offences of necesity. Aim of this work is the analysis of criminal law doctrine and case law to... [to full text]
116

Höhergradige Akutreaktionen als prognostischer Marker bei der primären Radiochemotherapie von Analkarzinomen - Eine retrospektive Analyse / High-Grade Acute Organ Toxicity As A Prognostic Factor In Primary Radiochemotherapy For Anal Carcinoma - A Retrospective Analysis

Raven, Ismene 07 May 2012 (has links)
No description available.
117

Determina??o multiparam?trica da qualidade f?sico-qu?mica de vinhos tintos com uso de espectroscopia na regi?o de infravermelho pr?ximo

Neves, Nath?lia de Andrade 06 March 2012 (has links)
Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-19T13:03:29Z No. of bitstreams: 5 nathalia.pdf: 1483380 bytes, checksum: acf5f07f37d0cff8f8dc49c87a364666 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2110 bytes, checksum: b4c884761e4c6c296ab2179d378436d4 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-20T09:40:07Z (GMT) No. of bitstreams: 5 nathalia.pdf: 1483380 bytes, checksum: acf5f07f37d0cff8f8dc49c87a364666 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2110 bytes, checksum: b4c884761e4c6c296ab2179d378436d4 (MD5) / Made available in DSpace on 2015-02-20T09:40:07Z (GMT). No. of bitstreams: 5 nathalia.pdf: 1483380 bytes, checksum: acf5f07f37d0cff8f8dc49c87a364666 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2110 bytes, checksum: b4c884761e4c6c296ab2179d378436d4 (MD5) Previous issue date: 2013-02-21 / O vinho ? uma das bebidas mais antigas e tradicionais produzidas e consumidas pela humanidade. Nas ?ltimas d?cadas a busca por qualidade nos produtos aliment?cios impulsionaram a pesquisa em t?cnicas anal?ticas capazes de fornecer resultados mais r?pidos e precisos. Neste contexto, m?todos anal?ticos que possam mensurar par?metros de qualidade de forma simult?nea para um grande n?mero de amostras constitui-se ferramenta desej?vel para processo de escala industrial. A espectroscopia no infravermelho pr?ximo (NIR) aparece como uma ferramenta de consider?vel import?ncia para a ind?stria de vinhos, permitindo o estabelecimento de in?meras metodologias anal?ticas. Dessa forma, o trabalho desenvolvido nesta disserta??o teve por objetivo usar a espectroscopia no infravermelho pr?ximo e ferramentas de an?lise multivariada de dados para o estabelecimento de protocolo quimiom?trico de an?lise da qualidade f?sico-qu?mica de vinhos tintos. As amostras de vinho foram analisadas quanto a 21 par?metros f?sico-qu?micos por meio de m?todos laboratorias enol?gicos de refer?ncia e por espectroscopia na regi?o eletromagn?tica do infravermelho pr?ximo. Os dados das t?cnicas de refer?ncia e os dados espectrosc?picos foram analisados utilizando diferentes tipos de regress?o (regress?o linear m?ltipla, regress?o por componentes principais e regress?o por m?nimos quadrados parciais) e pr?-processamentos para avalia??o de correla??o entre os dados. Os par?metros de acidez total, acidez fixa, cinzas e rela??o etanol/extrato seco obtiveram excelentes modelos de calibra??o. Os par?metros de a??cares redutores totais, extrato seco, glicerol, glicose e intensidade da cor, obtiveram bons modelos de calibra??o. Os par?metros de s?lidos sol?veis totais, compostos fen?licos, a??cares redutores, taninos e tonalidade obtiveram modelos de calibra??o capazes de separar corretamente os altos, m?dios e baixos valores. Para os par?metros de pH, antocianinas, di?xido de enxofre livre, di?xido de enxofre total e sulfatos totais foram obtidos modelos de calibra??o ruins. Os dados obtidos demonstraram que a espectroscopia no infravermelho pr?ximo combinada a ferramentas de an?lise multivariada de dados aplica-se na determina??o de alguns analitos enol?gicos. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Qu?mica, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2012. / ABSTRACT The wine is one of the oldest beverage produced and consumed by humanity. In the last years, the research in food quality are looking for a new analytical techniques more precise, faster and accurate. In this way, the wineries demand for new analytical methods that can provide simultaneous data for a large number of analyses. The near infrared spectroscopy (NIR) is a very important analytical tool in wine industry, allowing the establishment of numerous analytical methodologies. In that way, the work developed for this dissertation aimed use near infrared spectroscopy and multivariate data analysis tools for the establishment of chemometric analysis of physicochemical quality of red wines. The wine samples was analyzed for 20 parameters using enological laboratorial methods and by using near infrared spectroscopy. The chemical an spectroscopic data was analyzed using different types of regression (multiple linear regression, principal components regression and least partial squares) and preprocessing tools to evaluate the correlation between the data. The total acidity, fixed acidity, ash, ethanol/dry extract relation had a excellent correlation model. The total reducing sugar, dry extract, glycerol, glucose and color intensity had a good correlation model. The total soluble solids, phenolic compounds, reducing sugar, tannins and tonality had a calibration model able to separate correctly the high, meddle and low values. The ethanol, pH, anthocyanins, free sulfur dioxide, total sulfur dioxide, total sulfates and volatile acidity had a bad correlation model. The results showed that near infrared spectroscopy and multivariate analysis tools can be used for determinations in enological quality control.
118

Reconhecimento de padr?es pela casca de jabuticaba (Myrciaria jabuticaba (Vell) Berg (jabuticaba sabar?)) e de refrigerante do guaran? (Paullinia cupana) usando infravermelho pr?ximo e quimiometria

Pedrosa, Nascilaine Osanilha Costa January 2012 (has links)
Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-19T13:03:29Z No. of bitstreams: 5 nascilaine.pdf: 1827154 bytes, checksum: b9e52778b31d948210ff6f1f431250cf (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2110 bytes, checksum: b4c884761e4c6c296ab2179d378436d4 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-20T09:45:45Z (GMT) No. of bitstreams: 5 nascilaine.pdf: 1827154 bytes, checksum: b9e52778b31d948210ff6f1f431250cf (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2110 bytes, checksum: b4c884761e4c6c296ab2179d378436d4 (MD5) / Made available in DSpace on 2015-02-20T09:45:45Z (GMT). No. of bitstreams: 5 nascilaine.pdf: 1827154 bytes, checksum: b9e52778b31d948210ff6f1f431250cf (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2110 bytes, checksum: b4c884761e4c6c296ab2179d378436d4 (MD5) Previous issue date: 2013-02-21 / Na primeira parte do trabalho foi proposto o reconhecimento de padr?es de jabuticaba (Myrciaria jabuticaba (vell) berg (jabuticaba sabar?)) pela avalia??o dos elementos boro, nitrog?nio, magn?sio, f?sforo, pot?ssio, c?lcio, mangan?s, ferro, cobre e zinco na casca empregando-se as t?cnicas de titula??o, espectroscopia de absor??o at?mica e molecular. Os dados obtidos pelas an?lises dos elementos foram dispostos em matriz 7 x 10, sendo sete amostras referente ?s sete cidades analisadas (S?o Jo?o da Chapada, Gouveia, Guinda, Couto de Magalh?es, Po?os de Caldas, Belo Horizonte e Serro) e dez vari?veis correspondendo ?s concentra??es dos elementos determinadas em mgk-1. O reconhecimento de padr?es foi feito empregando-se a An?lise das Componentes Principais e An?lise Hier?rquica por Agrupamentos. Desta forma foi poss?vel identificar pela An?lise das Componentes Principais os grupos formados pela semelhan?a, baseados nos pesos correspondentes ?s influ?ncias das vari?veis. Cerca de cinco componentes principais acumularam 97,47% da vari?ncia total dos dados sendo que a componente principal de n?mero um (01) acumulou cerca de 38,21% da vari?ncia e a componente principal de n?mero tr?s (03) cerca de 16,13% da vari?ncia. Os grupos formados na An?lise das Componentes Principais foram confirmados na An?lise Hier?rquica por Agrupamento, sendo formado quatro grupos, denotando a maior semelhan?a nas amostras de Gouveia e Couto Magalh?es. Na segunda etapa do estudo teve por finalidade classificar e caracterizar quimicamente o refrigerante do tipo guaran?, em diferentes estados brasileiros, foram analisadas suas concentra??es de metais e diferentes compostos atrav?s da absor??o at?mica e espectroscopia de infravermelho respectivamente. Para classificar os refrigerantes dos diversos locais, foi utilizada nos resultados obtidos das an?lises a an?lise explorat?ria baseada em An?lise das Componentes Principais (PCA). A melhor separa??o se deu com as vari?ncias acumuladas na CP2 e CP4, onde as amostras de refrigerantes zero formaram um grupo e amostras coletadas no RJ outro grupo e as amostras de Shim tamb?m formaram um grupo diferente dos demais. Como conclus?o pode-se salientar que os m?todos de reconhecimento de padr?es empregados neste trabalho apresentaram resultados que possibilitam a diferencia??o das amostras em locais distintos. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Qu?mica, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2012. / ABSTRACT In the first part of the proposed pattern recognition Jabuticaba (Myrciaria jabuticaba (vell) berg (jabuticaba sabar?)) for the evaluation of the elements boron, nitrogen, magnesium, phosphorus, potassium, calcium, manganese, iron, copper and zinc on the shell employing the techniques of titration, atomic absorption spectroscopy and molecular. The data obtained by analysis of the elements were arranged in a matrix 10 x 7, seven samples analyzed referring to the seven cities (S?o Jo?o da Chapada, Gouveia, Guinda, Couto de Magalhaes, Wells Caldas, Belo Horizonte and Serro) and ten variables corresponding concentrations of certain elements in MGK-1. Pattern recognition was done using the Analysis of Principal Components Analysis for Hierarchical Groups. This made it possible to identify the Principal Component Analysis groups formed by similarity, based on the weights corresponding to the influences of variables. About five main components accumulated 97.47% of the total variance of the data being the main component of a number (01) accumulated approximately 38.21% of the variance and the principal component number three (03) approximately 16.13% variance. The groups formed in the Principal Component Analysis were confirmed in the Hierarchic Cluster Analysis, formed four groups, indicating a greater similarity in the samples of Gouveia and Couto Magalh?es. In the second stage of the study aimed to classify and characterize chemically the guarana soda type, in different Brazilian states were analyzed in relation to different concentrations of metals and compounds by atomic absorption and infrared spectroscopy respectively. To sort the drinks at different locations, we used the results of the analyzes exploratory analysis based on Principal Component Analysis (PCA). The best separation was accumulated at variance with the CP2 and CP4, where samples of soft drinks have formed a group and zero samples collected at the RJ and the other group samples Shim also formed a different group of demais. Como conclusion can be noted that methods of pattern recognition in this work presented results that allow the differentiation of samples at different locations.
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Caracteriza??o geom?trica e parametriza??o de dep?sitos transicionais recentes e sua aplica??o na modelagem de reservat?rios petrol?feros

P?rez, Yoe Alain Reyes 31 March 2008 (has links)
Made available in DSpace on 2015-02-24T19:48:35Z (GMT). No. of bitstreams: 1 YoeARP_Da_ capa_ ate_pag32.pdf: 4563485 bytes, checksum: 2bb58a8570cdf436e302b817c725d549 (MD5) Previous issue date: 2008-03-31 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / In this beginning of the XXI century, the Geology moves for new ways that demand a capacity to work with different information and new tools. It is within this context that the analog characterization has important in the prediction and understanding the lateral changes in the geometry and facies distribution. In the present work was developed a methodology for integration the geological and geophysical data in transitional recent deposits, the modeling of petroliferous reservoirs, the volume calculation and the uncertainties associate with this volume. For this purpose it was carried planialtimetric and geophysics (Ground Penetrating Radar) surveys in three areas of the Parna?ba River. With this information, it was possible to visualize the overlap of different estuary channels and make the delimitation of the channel geometry (width and thickness). For three-dimensional visualization and modeling were used two of the main reservoirs modeling software. These studies were performed with the collected parameters and the data of two reservoirs. The first was created with the Potiguar Basin wells data existents in the literature and corresponding to A?u IV unit. In the second case was used a real database of the Northern Sea. In the procedures of reservoirs modeling different workflows were created and generated five study cases with their volume calculation. Afterwards an analysis was realized to quantify the uncertainties in the geological modeling and their influence in the volume. This analysis was oriented to test the generating see and the analogous data use in the model construction / Neste in?cio do s?culo XXI a Geologia transita por novos caminhos que demandam uma capacidade crescente de trabalhar com informa??es de naturezas variadas, assim como a aplica??o de novas ferramentas. ? dentro desse contexto que a caracteriza??o de an?logos recentes tem se tornado importante para o entendimento e predi??o das mudan?as laterais na geometria e na distribui??o dos corpos e f?cies reservat?rio. No presente trabalho foi desenvolvida uma metodologia de integra??o de dados geol?gicos e geof?sicos de dep?sitos transicionais recentes, em ambiente tridimensional, para serem empregados como subs?dio na modelagem de reservat?rios petrol?feros e estudada a influ?ncia dos mesmos no c?lculo de volume. Para esta finalidade foram realizados levantamentos planialtim?tricos e de geof?sica rasa GPR em tr?s ?reas da desembocadura do Rio Parna?ba. Com as informa??es obtidas foi poss?vel visualizar a superposi??o de diferentes gera??es de canais estuarinos e realizar a delimita??o da geometria do canal atrav?s dos par?metros de largura e espessura. Para a visualiza??o e modelagem tridimensional foram empregados dois dos principais softwares de modelagem de reservat?rios. Este trabalho foi realizado com os par?metros coletados e os dados de dois reservat?rios. O primeiro foi criado com dados de po?os da Bacia Potiguar existentes na literatura e correspondentes a unidade A?u IV. J? no segundo caso foi empregada uma base de dados reais de um modelo da regi?o do mar do norte. Nos procedimentos de modelagem dos reservat?rios foram criadas diferentes rotinas de trabalho e gerados cinco casos de estudo com seus respectivos c?lculos de volumes. Em seguida, foi realizada uma an?lise para quantificar as incertezas referentes ? modelagem geol?gica e a influ?ncia delas no volume. Esta an?lise foi orientada a testar a semente geradora e os dados de an?logos empregados na constru??o do modelo
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Amplificador integrador com ganho program?vel por largura de pulso

Deus, Michel Santana de 30 January 2015 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-02-05T22:10:33Z No. of bitstreams: 1 MichelSantanaDeDeus_DISSERT.pdf: 4922399 bytes, checksum: fc28d4e3f5194f84ffba8f230bf99cae (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-02-15T23:30:17Z (GMT) No. of bitstreams: 1 MichelSantanaDeDeus_DISSERT.pdf: 4922399 bytes, checksum: fc28d4e3f5194f84ffba8f230bf99cae (MD5) / Made available in DSpace on 2016-02-15T23:30:17Z (GMT). No. of bitstreams: 1 MichelSantanaDeDeus_DISSERT.pdf: 4922399 bytes, checksum: fc28d4e3f5194f84ffba8f230bf99cae (MD5) Previous issue date: 2015-01-30 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico - CNPq / Este trabalho trata da pesquisa e desenvolvimento de um amplificador integrador com ganho program?vel por largura de pulso. S?o propostas duas arquiteturas de amplificadores program?veis por pulsos, sendo uma baseada em componentes discretos e outra baseada em capacitores chaveados. A partir de requisitos de opera??o definidos para o estudo, s?o definidos par?metros e realizadas simula??es para a valida??o das arquiteturas. Posteriormente, o software e o circuito s?o desenvolvidos e testados. ? realizada a avalia??o dos circuitos referentes ?s duas arquiteturas propostas, e a partir disso, ? selecionada uma arquitetura para que seja aperfei?oada e permita o desenvolvimento de um circuito integrado em um trabalho futuro. / This work deals with the research and development of a Pulse Width Programmable Gain Integrating Amplifier. Two Pulse Width Programmable Gain Amplifier architectures are proposed, one based on discrete components and another based on switched capacitors. From the operating requirements defined for the study, parameters are defined and simulations are carried out to validate the architecture. Subsequently, the circuit and the software are developed and tested. It is performed the evaluation of the circuits regarding the two proposed architectures, and from that, an architecture is selected to be improved, aiming the development of an integrated circuit in a future work.

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