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Serra, Maria do Rosário Alves. "Eno arquitectura. Adegas contemporâneas." Master's thesis, Faculdade de Arquitetura de Lisboa, 2013. http://hdl.handle.net/10400.5/5851.
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Gandhi, Sonia. "ENO interpolation for image compression." Diss., Connect to online resource, 2005. http://wwwlib.umi.com/cr/colorado/fullcit?p1425778.
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Getreuer, Pascal. "ENO schemes with general discretizations." Diss., Connect to online resource, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1433497.
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Cavalcanti, Juliana Garzillo. "77 Million Paintings: fronteiras entre mundos em Brian Eno." Pontifícia Universidade Católica de São Paulo, 2017. https://tede2.pucsp.br/handle/handle/20255.
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Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq
This study analyses the borderline zone that 77 Million Paintings, from Brian Eno (United Kingdom, 1948), is in. The art work presents itself in different platforms: software, DVD, audiovisual installation and urban art. The research focuses on reading the work’s poetics that are addressed in spaces in between different languages, senses and technologies. The art work is built with a recombinant language system which makes images and sound montages in different platforms. 77 Million Paintings is presented in various countries between the years 2006 and 2016. The study analyses the poetics and communication process and the sensual stimulus as well. A reflection is made about the choices and path made by Brian Eno in the creation of this art work. Been present in the experimental and popular worlds, the artist’s involvement with music contaminates his creation in another fields. It is possible to recognize music traces in the image language from 77 Million Paintings, and the opposite can be observed too, when the image contaminates sound as well. The analysis is constructed through the extremities way method, from Christine Mello (2016). The identification of the poetics procedures of deconstruction and contamination forms the study of the blurred borderlines between the worlds of Brian Eno and 77 Million Paintings. About the contamination between different senses, Sérgio Basbaum (2002) ideas are used in the reading of the synesthesia’s work. To the analysis about the emergent system of the art work, Bill Seaman (2010) gives basis to the reflection about 77 Million Paintings software and it’s aesthetic results
O presente estudo analisa a zona fronteiriça em que 77 Million Paintings, de Brian Eno (Reino Unido, 1948), está inserida. Este trabalho artístico se apresenta em diferentes plataformas: software, DVD, instalação audiovisual e intervenção urbana. A pesquisa tem como foco a leitura das poéticas da obra, que se insere em espaços intersticiais de diferentes linguagens, estesias e tecnologias. A proposta artística se forma através de um sistema de linguagem recombinatória que realiza montagens de imagens e sons em diferentes plataformas. 77 Million Paintings foi apresentada em diversos países entre 2006 e 2016. Analisam-se as poéticas e os processos comunicacionais nos estímulos sensoriais proporcionados pelo software, bem como é realizada uma reflexão a respeito das escolhas e caminhos poéticos feitos por Brian Eno na criação dessa obra. Com presença no mundo experimental e popular, o forte envolvimento do artista com a música contamina sua criação em outros campos. É possível reconhecer traços do campo musical na linguagem imagética de 77 Million Paintings, assim como o contrário, quando o campo da imagem contamina a linguagem sonora. A análise é construída através do caminho de leitura das extremidades, proposta por Christine Mello (2016). A identificação dos procedimentos poéticos de desconstrução e contaminação embasam o estudo das relações de fronteiras borradas dos mundos de Brian Eno e 77 Million Paintings. No desenvolvimento a respeito das contaminações entre os sentidos, as ideias de Sérgio Basbaum (2002) respaldam a leitura das sinestesias presentes no trabalho artístico. Para a leitura sobre o sistema de comportamento emergente da proposição artística, Bill Seaman (2010) dá embasamento à reflexão sobre o software 77 Million Paintings e seus desdobramentos estéticos
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Hazari, Mehdi Saeed. "Elevated exhaled nitric oxide (ENO) in non-asthmatic atopic adults." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ58853.pdf.
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Fürst, Jiří. "Modélisation numérique d'écoulements transsoniques avec des schémas TVD et ENO." Aix-Marseille 2, 2001. http://www.theses.fr/2001AIX22046.
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Wu, Jian. "Numerical Smoothness of ENO and WENO Schemes for Nonlinear Conservation Laws." Bowling Green State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1307575652.
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Silva, André Fernando de Castro da. "On the use of eno-based limiters for discontinuous galerkin methods for aerodynamics." Instituto Tecnológico de Aeronáutica, 2012. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=2197.
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A recurring problem in high-order simulation of compressible flows is the appearance of spurious oscillations near regions which display abrupt changes of flow properties such as shock waves. If the amplitude of these oscillations is sufficiently high, this phenomenon, known as Gibbs phenomenon, can lead simulation to diverging due to the appearance of non-physical states (negative pressure or density, for example). Among the techniques available to address this problem, it is highlighted the use of limiters. Such methodology was taken to the high-order context by inheriting from Finite Volume methods and tend to be of easier implementation when compared with other possibilities. However, classical limiters have the disadvantage of reducing the local accuracy order to first order even when applied to smooth regions. This thesis proposes itself to study the ENO(Essentially Non-Oscillatory)-based limiting procedure first proposed by Qiu and Shu in 2003. Such schemes have the property of maintain the high-order accuracy on smooth regions while still providing sharp shock transitions. As part of this work, such limiter was implemented in a computer code based on the Discontinuous Galerkin (DG) methodology in order to simulate the gas dynamics Euler equations in two dimensions on unstructured triangular meshes. Tests and simulations were then performed in order to demonstrate that the capacities proposed.
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Carabias, Alexandre. "Analyse et adaptation de maillage pour des schémas non-oscillatoires d'ordre élevé." Phd thesis, Université Nice Sophia Antipolis, 2013. http://tel.archives-ouvertes.fr/tel-00914214.
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Cette thèse contribue à un ensemble de travaux consacrés à l'étude d'un schéma ENO centré-sommet (CENO) d'ordre élevé ainsi qu'à l'adaptation de maillage anisotrope pour des calculs de Mécaniques des Fluides précis à l'ordre 3. La première partie des travaux de cette thèse est consacré à une analyse approfondie de la précision du schéma CENO et à la création de termes correcteurs pour améliorer ses propriétés dispersives et dissipatives en une et deux dimensions. On propose un schéma CENO quadratique précis à l'ordre 3, puis cubique précis à l'ordre 4, pour les équations d'Euler des gaz compressibles, ainsi qu' une première version du schéma avec capture de choc monotone. La deuxième partie des travaux est consacrée à la mise au point d'une plateforme numérique d'adaptation de maillage anisotrope multi-échelle et basée fonctionnelle intégrant le schéma CENO. Nous proposons un nouvel estimateur d'ordre 3 du schéma quadratique basé sur une reconstruction de hessien équivalent et son application à des simulations d'acoustiques instationnaire et de Scramjet stationnaire utilisant nos limiteurs.
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Lumpp, Tilo. "Simulations numeriques de couches de melange compressibles au moyen des schemas d'ordre eleve du type eno." Nice, 1994. http://www.theses.fr/1994NICE4772.
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Le but de ce travail est l'evaluation des performances de plusieurs schemas du type volumes finis pour la simulation directe de couches de melange compressibles. La difficulte qui se presente dans ce type de simulation est la necessite de representer correctement l'amplification de petites perturbations en presence de chocs. Ce memoire se constitue de trois parties: dans une etude bibliographique, on rappelle les principales experiences acquises sur le sujet. Dans le second chapitre on presente les schemas essentiellement non-oscillants (schemas eno). Le dernier paragraphe est consacre a l'application des schemas eno, precis au troisieme ordre, aux simulations directes d'instabilites de la couche de melange compressible. Le nombre de structures etant donne par la perturbation du profil de base, des calculs a une et deux structures sont effectues, et les resultats sont compares avec ceux fournis par un schema muscl et ceux d'une methode spectrale. L'importante influence de la discretisation spatiale sur les resultats est soigneusement examinee, pour des cas ou l'amplitude de la perturbation est de l'ordre de grandeur de l'erreur de troncature
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Hara, Nobuo. "Frobenius action on singularities and tight closure = Furobeniusu shazō no tokuiten eno sayō to taito kurōjā /." Electronic version of summary, 1996. http://www.wul.waseda.ac.jp/gakui/gaiyo/2365.pdf.
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Adongo, Donald Omedo. "A local extrapolation method for hyperbolic conservation laws: the ENO and Goodman-LeVeque underlying schemes and sufficient conditions for TVD property." Diss., Manhattan, Kan. : Kansas State University, 2008. http://hdl.handle.net/2097/886.
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Töppe, Eno [Verfasser], Daniel [Akademischer Betreuer] Cremers, and Wolfgang [Akademischer Betreuer] Förstner. "Convex Optimization Methods for Single View 3D Reconstruction / Eno Töppe. Gutachter: Wolfgang Förstner ; Daniel Cremers. Betreuer: Daniel Cremers." München : Universitätsbibliothek der TU München, 2013. http://d-nb.info/1042578273/34.
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Dykstra, Stefanie Nolte. "INVESTIGAÇÃO DO EFEITO DO TRITERPENO 3Β,6Β,16Β-TRIHIDROXILUP-20(29)-ENO (TTHL) SOBRE A PROLIFERAÇÃO DE QUERATINÓCITOS HUMANOS (HACAT)." UNIVERSIDADE ESTADUAL DE PONTA GROSSA, 2013. http://tede2.uepg.br/jspui/handle/prefix/108.
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Previous issue date: 2013-02-21Introduction: Psoriasis is a skin inflammatory disease characterized by keratinocytes hyperproliferation and their incomplete differentiation in the epidermis. Treatment aims to reduce the psoriatic plaques formation; however, many therapeutic regimens do not produce satisfactory results. Searching for new alternatives, this study evaluated the possible effect of the TTHL compound, isolated from the ethanolic extract of Combretum leprosum, on HaCaT proliferation.Methods: The cellular viability was assessed 24 hours after the treatment with different concentrations of TTHL through MTT and neutral red methods. To evaluate the TTHL anti-proliferative activity, the cells were treated with different concentrations of TTHL, in alternate days (96 hours) and analyzed through MTT and Cyquant methods. The cell cycle was evaluated by flow citometry. The possible toxicity by the topical application of the TTHL (0.3 mg/ear) was assessed in vivo, through skin atrophy, by measuring ear thickness of animals and histology.Results: The MTT assay showed, after 24 hours, that TTHL presents cytotoxic activity in HaCaT cells, at the concentrations of 5, 7, 9 and 10 μM, decreasing, respectively, 53.54, 89.53, 89.69 and 90.30 ± 5.84% the cellular viability compared to the control group. The neutral red assay, in the same concentrations, decreased 39.83%, 48.67%, 47.78% and 50.44 ± 4.42%, respectively. In the cellular proliferation assay, the 5, 7 and 10 μM concentrations decreased 24.27%, 59.25% and 82.30% ± 5.96% the cells number, as showed in the MTT method, and 30.30%, 59.59% e 90.90% ± 6.03% as showed in the Cyquant method. The cell cycle assay showed that, at the concentrations of 5, 7 and 10 μM, the non-viable cells number was higher and statistically significant when compared to the control group. Through the skin atrophy assay was possible to conclude that TTHL does not cause atrophy.Conclusion: TTHL is capable of reducing cell viability. These data suggest that TTHL might be a possible tool for the treatment of hyperproliferative diseases, among them, psoriasis. However, additional studies are needed to verify the action mechanism and triterpene safety.
Introdução: A psoríase é uma doença inflamatória cutânea caracterizada pela hiperproliferação e diferenciação incompleta de queratinócitos na epiderme. O tratamento tem como objetivo reduzir a formação de placas psoriáticas, porém muitos regimes terapêuticos não produzem resultados satisfatórios. Buscando alternativas, este trabalho avaliou o possível efeito do composto TTHL, isolado do extrato etanólico de Combretum leprosum, sobre a proliferação de HaCaT. Métodos: A viabilidade celular foi avaliada 24 horas após o tratamento com diferentes concentrações de TTHL, através do método de MTT e vermelho neutro. Para avaliar a atividade antiproliferativa, as células foram tratadas com diferentes concentrações de TTHL, em dias alternados e analisadas através do método de MTT e Cyquant. O ciclo celular foi avaliado por citometria de fluxo. A possível toxicidade pela aplicação tópica do TTHL foi avaliada in vivo, pelo ensaio de atrofia cutânea, através da medida da espessura da orelha dos animais e histologia. Resultados: No ensaio de MTT, após 24 horas, o TTHL, apresentou atividade citotóxica nas células HaCaT, nas concentrações de 5, 7, 9 e 10 μM, diminuindo, respectivamente em 53,54, 89,53, 89,69 e 90,30 ± 5,84% a viabilidade celular quando comparado ao grupo controle. No ensaio de vermelho neutro, essas mesmas concentrações diminuíram 39,83%, 48,67%, 47,78% e 50,44 ± 4,42%, respectivamente. No ensaio de proliferação celular, nas concentrações de 5, 7 e 10 μM, observou-se diminuição de 24,27%, 59,25% e 82,30% ± 5,96% no número de células, conforme o método de MTT e 30,30%, 59,59% e 90,90% ± 6,03% conforme o método de Cyquant. No ensaio de ciclo celular observou-se que nas concentrações de 5, 7 e 10 μM o número de células não viáveis foi maior e estatisticamente significante quando comparado com o grupo controle. Através do ensaio de atrofia cutânea foi possível concluir que o TTHL não causa atrofia. Conclusão: O TTHL é capaz de diminuir a viabilidade celular. Esses dados sugerem que o TTHL possa ser uma possível ferramenta para o tratamento de doenças hiperproliferativas, dentre elas, a psoríase. Entretanto, estudos adicionais são necessários para verificar o mecanismo de ação e segurança do triterpeno.
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Pace, Iuri Domingues Della. "Efeito do Triterpeno 3β, 6β, 16β , trihidroxilup-20(29)-eno nas convul-sões induzidas por pentilenotretazol: papel da Na+, K+ ATPase." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/8993.
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Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorEpilepsy is a syndrome characterized by spontaneous recurrent seizures, result of paroxys-mal discharges , excessive or synchronous a neural population . Despite the good prognosis, the high number of patients with epilepsy who have seizures refractory to medication, reflects the lack of a bet-ter understanding of excitotoxic disorders characteristic of this disease. Thus, it becomes important to understand the mechanisms for induction and maintenance of seizures as well, the search for new antiepileptic compounds that may prevent the development of this pathology. As nociception and epi-lepsy have mechanisms in common and several anticonvulsant drugs are used in treatment of pain , we investigated the effect of triterpene 3β , 6β , 16β Trihidroxilup -20 ( 29) -ene (TTHL), a compound with antinociceptive properties in convulsions induced by pentylenetetrazol (PTZ). The TTHL admin-istration ( 30 mg / kg , po) increased the latency to the first myoclonic seizures and tonic- clonic sei-zure and decreased the duration of generalized seizures induced by PTZ . In addition , the administra-tion of TTHL reduced lipid peroxidation and protein carbonylation , as well as protected from inhibition of glutamate uptake and activity of the Na+, K+-ATPase (α1and α2/α3 subunits ) caused by PTZ . Alt-hough the TTHL showed no antioxidant activity per se and not alter the binding of [ 3H ] flunitrazepam to the site of the GABAA receptor bezodiazepínico , this protected compound of convulsions and inhi-bition of Na+, K+-ATPase activity induced by ouabain . These results suggest that the anticonvulsant action is due TTHL s maintenance of Na+, K+-ATPase . In fact , the experiments performed in the cer-ebral cortex in vitro showed that PTZ ( 10 mM ) reduced the activity of Na+, K+-ATPase and that prein-cubation with TTHL ( 10 mM ) protected from this inhibition.Thus , these data indicate that the protec-tion exerted by TTHL this seizure model is not related to antioxidant activity or GABAergic activity . However, these results demonstrate that effective protection of Na+, K+-ATPase activity induced by this compound protects against oxidative and excitotoxic damage induced by PTZ .
A epilepsia é uma síndrome caracterizada por crises espontâneas e recorrentes, resultado de descargas paroxísticas, excessivas e sincrônicas de uma população neural. Apesar do bom prognós-tico, o elevado número de pacientes com epilepsia, que apresentam convulsões refratárias aos medi-camentos, reflete a falta de um melhor entendimento dos distúrbios excitotóxicos característico desta doença. Desta forma, torna-se importante o entendimento dos mecanismos de indução e manuten-ção das convulsões, bem como, a busca por novos compostos anticonvulsivantes que possam evitar o desenvolvimento desta patologia. Como a nocicepção e a epilepsia possuem mecanismos em co-mum, e vários anticonvulsivantes são usados no tratamento da dor, foi investigado o efeito do Triter-peno 3β,6β,16β Trihidroxilup-20(29)-eno (TTHL), um composto com propriedades antinociceptivas, nas convulsões induzidas pelo pentilenotetrazol (PTZ). A administração do TTHL (30 mg/kg; p.o) au-mentou a latência para a primeira convulsão mioclônica e tônico-clônica e reduziu a duração das convulsões generalizadas induzidas pelo PTZ. Além disso, a administração do TTHL reduziu a pero-xidação lipídica e a carbonilação de proteínas, assim como, protegeu da inibição da captação de glu-tamato e da atividade da Na+,K+-ATPase (subunidades α1 e α2/α3) causadas pelo PTZ. Embora, o TTHL não mostrou uma atividade antioxidante per se e não alterou a ligação do [3H]flunitrazepam ao sítio para bezodiazepínico do receptor GABAA, este composto protegeu das convulsões e da inibição da atividade da Na+, K+- ATPase induzidos pela ouabaina. Estes resultados sugerem que a ação an-ticonvulsivante do TTHL é devido s manutenção da atividade da Na+,K+-ATPase. De fato, os experi-mentos realizados no córtex cerebral in vitro mostraram que o PTZ (10 mM) reduziu a atividade da Na+,K+-ATPase e que a incubação prévia com TTHL (10 μM) protegeu desta inibição. Dessa forma, estes dados indicam que a proteção exercida pela TTHL neste modelo de convulsão não está relaci-onado com atividade antioxidante ou a atividade GABAérgica. No entanto, estes resultados demons-traram que a proteção eficaz da atividade da Na+,K+-ATPase , induzida por este composto, protege contra os danos excitotóxic e oxidativos induzidos pelo PTZ.
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Lenz, Cesar Antonio. "Síntese da 5-metil-2-oxabiciclo[3.3.1]nom-7-eno-3,6-diona.Determinaçăo estrutural de uma lactona bioativa isolada de otoba parvifolia /." oai:ufpr.br:217486, 2003. http://200.17.209.5:8000/cgi-bin/gw_42_13/chameleon.42.13a?host=localhost%201111%20DEFAULT&sessionid=VTLS&function=CARDSCR&search=KEYWORD&pos=1&u1=12101&t1=217486.
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Orientador: Francisco de Assis MarquesTese (doutorado) - Universidade Federal do Paraná, Setor de Cięncias Exatas, Programa de Pós-Graduaçăo em Química. Defesa: Curitiba, 2003
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Åström, Johanna. "Composing with the tape recorder : A case study of My Life in the Bush of Ghosts by Brian Eno & David Byrne." Thesis, Mittuniversitetet, Institutionen för elektronikkonstruktion, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-38939.
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This work describes the utilisation of the tape recorder as an instrument, the methods derived by musique concrète and the evolution of these practices. This leads on to its application that opened different creativity streams to many genres of music that we listen to today. This dissertation dives in the further to talk about to the album ‘My Life in the Bush of Ghosts’ by Brian Eno and David Byrne its cult status, revolutionary production and opens doors to discussing cultural appropriation and copyright infringement.
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Matei, Basarab. "Methodes multiresolutions non-lineaires. Applications au traitement d'image." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2002. http://tel.archives-ouvertes.fr/tel-00002016.
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CETTE THÈSE INTRODUIT UNE CLASSE DES TRANSFORMÉS MULTI ÉCHELLES BIDIMENSIONNELLES ADAPTÉES AUX CONTOURS. CELLES-CI SONT DIFFÉRENTES DES TRANSFORMÉES EN ONDELETTES BIDIMENSIONNELLES, CAR ELLES SONT BASÉES SUR DES OPÉRATEURS NONLINÉAIRES DEPENDENTS DES DONNÉES. CES OPÉRATEURS SONT INSPIRÉS DES OPÉRATEURS D'INTERPOLATION ENO INTRODUITS PAR HARTEN ET OSHER DANS LE CONTEXTE DE LA SIMULATION NUMÉRIQUES DES ONDES DE CHOC. LE BUT EST D'INCLURE DANS LA TRANSFORMÉE UN TRAITEMENT SPECIFIC DES CONTOURS QUI, EN TENANT COMPTE DE LEURS RÉGULARITÉ GEOMETRIQUE, PERMETTRAS D'OBTENIR DES REPRÉSENTATIONS PLUS CREUSES ET DONC DES MEILLEURES PROPRIÉTÉS D'APPROXIMATIONS. D'UN POINT DE VUE THÉORIQUE ON S'INTERESSE À LA CONSERVATION DES MÊME PROPRIÉTÉS DE CONCENTRATION POUR LES ESPACES FONCTIONNELS CLASSIQUES (BESOV ET $BV$), ET ON S'INTERROGE AUSSI SUR LA STABILITÉ DE CES DÉCOMPOSITIONS. CE PROBLÈME EST LOIN D'ÊTRE AUSSI SIMPLE QUE DANS LE CAS DES REPRÉSENTATIONS LINÉAIRES. NOUS ABORDONS DANS CETTE THÈSE CHACUNE DE CES DIFFICULTÉS, ET NOUS Y APPORTONS DES ÉLÉMENTS DE RÉPONSE, AINSI QUE DES TESTS NUMÉRIQUES VISANT À ÉVALUER CONCRÈTEMENT LES PERFORMANCES DES MÉTHODES PROPOSÉES.
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KIM, Yongseok, and Yoshiaki NAKAMURA. "Effect of Nozzle Lip Shape on Screech Tone in a Supersonic Jet." 日本航空宇宙学会, 2008. http://hdl.handle.net/2237/13881.
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Mateï, Basarab. "Méthodes multirésolutions non-linéaires : applications au traitement d'image." Paris 6, 2002. https://tel.archives-ouvertes.fr/tel-00002016.
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Yashkina, Svetlana. "Modern Fairy Tales: The New Existence of an Old Genre : Exemplified by the Books of Alan A. Milne, Tove Jansson and Eno Raud." Thesis, Stockholms universitet, Institutionen för kultur och estetik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-151238.
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The aim of this study is to draw new perspectives to the theoretic approach towards the complex nature of the modern fairy tale genre and its transformation. The study is exemplified by two books by Alan A. Milne about Winnie-the-Pooh (1926-1928), Tove Jansson’s eight books about the Moomintrolls (1945-1970) and Eno Raud’s four books about three funny creatures called “Nakstitrallid” in Estonian (1972-1982). In this thesis, I examine the disputable problem of defining the fairy tale genre in modern literature and refer to the history of the genre and storytelling tradition that have indirectly inspired all three authors in their decision to turn for fairy tale as a genre. Applying the poetical analysis, I argue that these authors contributed to the continuity of fairy tales by creating the link between folkloric heritage, novelistic literary expression and children’s imagination. This study can therefore be considered as topological, however it does not pretend to introduce the complete systematic definition of the genre as the thesis’ format does not allow such in-depth investigation. In the first chapter, ‘Archaic world stimulation in modern fairy tale’, I examine the dominating literary categories that refer to the folk fairy tale intertext: Bakhtin’s concept of ‘chronotope’ – category of time and space, system of fictional allegoric characters and category of fantastic. In the second chapter, ‘Modern fairy tales from perspective of children’s literature’, I analyze the books of Milne, Jansson and Raud in the scope of narratological and aesthetic categories of children’s literature. The folkloric laughter intertextually reproduced by naïvism of the Moomins, the Naksitralls, and Winnie-the-Pooh’s friends, while folkloric collective hero is presented by universal harmony of a happy family and child-like protagonists. I came to the conclusion that poetics of folklore fairy tale still exists in these books through the intertextual dialogue. Modernism as literary method re-evaluates folkloric aspects such as nonlinear time, the blurred boarders between individual and cosmos, material and spirit, text and reality. Every new artistically unique fairy tale world resembles the new stage of the genre development. The more innovative is the story, the more sophisticated can be its poetics.
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Balbinot, Daniela Tagliari Longhi. "Análise dos mecanismos de ação envolvidos na atividade antinociceptiva do triterpeno 3ß, 6ß, 16ß- tridroxilup-20(29)-eno (TTHL) isolado de Combretum leprosum." reponame:Repositório Institucional da UFSC, 2012. http://repositorio.ufsc.br/xmlui/handle/123456789/94673.
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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Neurociências, Florianópolis, 2010Made available in DSpace on 2012-10-25T14:17:23Z (GMT). No. of bitstreams: 1 281337.pdf: 1042342 bytes, checksum: c36b27b72f71efb956abdd546da15ce3 (MD5)
Efeito antinociceptivo do triterpeno 3ß, 6ß, 6ß-trihidroxilup-20(29)-eno(TTHL) isolado de flores de Combretum leprosum em modelos experimentais de dor aguda e crônica em camundongos, como ácido acético, formalina e glutamato e dor crônica neuropática. Investigação dos possíveis mecanismos de ação envolvidos neste efeito, entre eles, o envolvimento do sistema opióide, sertoninérgico e via de sinalização comum entre estes sistemas, além do sistema glutamatérgico.
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Balbinot, Daniela Tagliari Longhi. "Análise dos mecanismos de ação envolvidos na atividade antinociceptiva do triterpeno 3ß, 6ß, 16ß- tridroxilup-20(29)-eno (TTHL) isolado de Combretum leprosum." reponame:Repositório Institucional da UFSC, 2013. https://repositorio.ufsc.br/handle/123456789/106706.
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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Neurociências, Florianópolis, 2010Made available in DSpace on 2013-12-05T22:01:46Z (GMT). No. of bitstreams: 1 319064.pdf: 1042342 bytes, checksum: c36b27b72f71efb956abdd546da15ce3 (MD5)
Efeito antinociceptivo do triterpeno 3ß, 6ß, 6ß-trihidroxilup-20(29)-eno(TTHL) isolado de flores de Combretum leprosum em modelos experimentais de dor aguda e crônica em camundongos, como ácido acético, formalina e glutamato e dor crônica neuropática. Investigação dos possíveis mecanismos de ação envolvidos neste efeito, entre eles, o envolvimento do sistema opióide, sertoninérgico e via de sinalização comum entre estes sistemas, além do sistema glutamatérgico.
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Morisso, Fernando Dal Pont. "Síntese e enriquecimento enantiomérico via catálise enzimática do sistema 5-bromo-12-oxa-pentaciclo[6.2.16,9.12,7.12,10]dodeca-4-eno-3-endo-ol e derivados. RMN de 1H e 13C: correlação de parâmetros teóricos e experimentais." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2003. http://hdl.handle.net/10183/3051.
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Partindo de ciclopentadieno, ciclohexadieno, p-benzoquinona e 2,5-dibromo-pbenzoquinona, os adutos 1, 5, 30 e 31 foram sintetizados. Os adutos 1, 5 e 30 foram utilizados como produtos de partida para a síntese de 13 (treze) novos compostos, em sua maioria com potenciais características para apresentarem atividade biológica inibidora de glicosidases e reguladora da liberação de Insulina no sangue. O aduto 31 é inédito na literatura até o momento. Cinco novas propostas de mecanismos são apresentadas. Os álcoois racêmicos 6 e 29 foram submetidos a reações de transesterificação catalisadas por lipase de Pseudomonas cepacia em diferentes preparações e seus enantiômeros separados com enantiosseletividade (E) maior que 100 em todos os casos. Este processo resultou, também, na obtenção dos respectivos acetatos 43 e 44 enantiomericamente puros e com excelentes rendimentos químicos. Os compostos 6, 29 e 34 depois de terem suas estruturas moleculares resolvidas através dos métodos espectroscópicos de rotina, tiveram suas estruturas moleculares calculadas pelo método ab initio e por Funcionais de Densidade. As geometrias otimizadas foram submetidas ao método GIAO para o cálculo dos tensores de blindagem magnética isotrópica. Estes cálculos mostraram-se eficazes na descrição dos deslocamentos químicos da maioria dos átomos, incluindo os dos anéis ciclopropanos presentes nas estruturas moleculares de cada composto. Algumas dificuldades foram encontradas para a descrição do sistema vinílico halogenado dos álcoois 6 e 29. Foram utilizadas moléculas modelo para verificar a extensão de tais dificuldades.
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Costa, Adilson Vidal. "Síntese e avaliação da atividade herbicida de compostos do tipo 3-Aril-2α,4α-dimetil-6,7-exo-isopropilidenodioxi-8-oxabiciclo[3.2.l]oct-2-eno." Universidade Federal de Viçosa, 1997. http://www.locus.ufv.br/handle/123456789/8403.
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Submitted by Reginaldo Soares de Freitas (reginaldo.freitas@ufv.br) on 2016-08-29T13:58:57Z
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Conselho Nacional de Desenvolvimento Científico e Tecnológico
Em virtude da crescente necessidade de novos produtos químicos para o controle racional e eficiente das pragas agrícolas, objetivou-se, com este trabalho, contribuir com as pesquisas de novos produtos com atividade herbicida. Para isso, foi sintetizada uma série de compostos do tipo 3-Ari1-2α,4α-dimetil-6,7- exo-isopropilidenodioxi-8-oxabiciclo[3.2.1]oct-2-eno, ainda não descrita na literatura. Assim, a partir da ciclo adição [3+4] entre furano e o cation oxialilico gerado pelo tratamento da 2,4-dibromopentan-3-ona com NaI/Cu, sintetizou-se o 2α,4α-dimetil-8-oxabiciclo[3.2.l]oct-6-en-3-ona, convertido em duas etapas no 2α,4α-dimetil-6,7-exo-isopropilidenodioxi-8-oxabiciclo[3 .2. 1]octan-3-ona (acetonideo [4]). O tratamento desse composto com vários reagentes de Grignard e butil litio, seguido da desidratacao dos álcoois, levou a obtenção de oito arialquenos. A avaliação da atividade desses produtos foi feita em ensaios preliminares com plantas de Sorghum bicolor, Cucumis sativus e algumas espécies de plantas daninhas, aplicando-se uma dose fixa de 6,6 ppm do composto sintetizado. Os principais produtos com atividade herbicida foram os álcoois [11], [17] e [19], que inibiram, em alguns casos, até 100 % das espécies de plantas testadas. Estes resultados indicaram que os compostos avaliados constituem uma nova classe de compostos orgãnicos com potencial atividade herbicida, sendo justificáveis estudos mais aprofundados sobre eles.
Considering the increasing need of new chemical products for a rational and efficient control of weeds, it was conducted a research on new products provided with herbicide activity. To do so, it was synthesized a compound series of the 3-Aryl-2a,4a-dimethyl-6,7-exo-isopropylidenedioxy-8-oxabicyclo [3.2.1]oct-2-ene type, which weren’t described yet in the literature. From V cycloaddition [3+4] between furan and oxyallyl cation produced from 2,4- dibromopentan-3-one treatment with NaI/Cu synthesizing 2a,4a-dimethyl-8- oxabicyclo[3.2.1]oct-6-en-one converted over two stages in 2a,4a-dimethyl-6,7- exo-isopropylidenedioxy-8-oxabicyclo[3.2.1]octan-3-one [4]. The treatment of this compound using several Grignard and butyl lithium reagents followed by alcohol dehydratation led to obtention of eight arylalkenes. These product I activities were evaluated in preliminary assays with Sorghum bicolor and C ucumis sativus plants, and some weed species by applying a 6,6 ppm fixed dose of the synthesized compound. The main products showing and herbicide activity were the alcohols [l 1], [17], [19], which, in some cases, inhibited up to 100 the species of the tested plants. These results indicated that the evaluated compounds are a new class of organic compounds having a potential herbicide activity, thus justifying more detailed studies.
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Filomeno, Claudinei Andrade. "Síntese e avaliação da atividade herbicida de compostos do tipo 3-alquil- 1α,2α,4α,5α-tetrametil-6,7-exo-isopropilidenodioxi-8-oxabiciclo[3.2.1]oct-2-eno." Universidade Federal de Viçosa, 2001. http://www.locus.ufv.br/handle/123456789/8695.
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Submitted by Reginaldo Soares de Freitas (reginaldo.freitas@ufv.br) on 2016-09-27T12:12:28Z
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Conselho Nacional de Desenvolvimento Científico e Tecnológico
Devido à grande demanda de produtos eficientes e que causem pequeno impacto ambiental no controle de plantas daninhas, realizou-se este trabalho, com o objetivo de sintetizar novos compostos com atividade herbicida. Para isso, foram sintetizados álcoois e alquenos derivados do composto 1α,2α,4α,5α-tetrametil-8- oxabiciclo[3.2.1]oct-6-en-3-ona, inéditos. As seqüências de sínteses foram iniciadas por meio da reação de cicloadição [3+4] entre o cátion oxialílico gerado a partir do 2,4- dibromopentan-3-ona e o 2,5-dimetilfurano. Essa reação forneceu o 1α,2α,4α,5α- tetrametil-8-oxabiciclo[3.2.1]oct-6-en-3-ona [5], que, após a reação com peróxido de hidrogênio catalisada por tetróxido de ósmio, produziu o diol [6] (não isolado), que foi convertido no 1α,2α,4α,5α-tetrametil-6,7-exo-isopropilidenodioxi-8- oxabiciclo[3.2.1]octan-3-ona [7], pela adição da acetona em presença do ácido p- toluenossulfônico. O acetonídeo [7], por sua vez, foi transformado em álcoois por reações via alquil lítio, reagente de Grignard e redução com boridreto de sódio, seguidas por desidratação com cloreto de tionila em piridina, para fornecer os alquenos correspondentes. A avaliação da atividade biológica dos compostos sintetizados foi realizada por meio de ensaios biológicos, utilizando-se plantas de Lactuca sativa L. (alface), Sorghum bicolor L. (sorgo) e Cucumis sativus L. (pepino). Os compostos sintetizados não causaram inibição significativa do crescimento do sistema radicular das plantas testadas. Todavia, novos testes serão realizados, pois esses compostos poderão interferir em outros processos vitais das plantas, que poderão se manifestar mais tarde ou em outra parte da planta.
Due to the great demand of efficient products and that they cause small environmental impact for the control of harmful plants, it the took place this work with the objective of synthesizing new composed with activity herbicide. For this alcohol and derived alkenes of the composition 1α,2α,4α,5α-tetramethyl-8-oxabicyclo[3.2.1]oct-6- en-3-one were synthesized, unpublished. The sequences of syntheses were initiate by means of the cycloaddition reaction [3+4] among the oxyallyl cation, generated starting from the 2,4-dibromopentan-3-one, and the 2,5-dimethylfuran. This reaction supplied the 1α,2α,4α,5α-tetramethyl-8-oxabicyclo[3.2.1]oct-6-en-3-one [5], that the after reaction with peroxide of hydrogen catalyzed by osmium tetroxide, produced the diol [6] (not isolated), that was transformed into the 1α,2α,4α,5α-tetramethyl-6,7-exo- isopropylidenodioxy-8-oxabicyclo[3.2.1]octan-3-one [7], for the addition of the acetone in presence of the acid p-toluenossulfonic. The acetonideo [7] for its time, it was transformed in alcohols by reactions through alkyl lithium, reagents of Grignard and reduction with boridreto of sodium, proceeded by dehydration with tionila chloride in pyridine, to supply the corresponding alkenes. The evaluation of the biological activity of the synthesized compositions, it was accomplished by means of biological rehearsals, using plants of Lactuca sativa L., Sorghum bicolor L. and Cucumis sativus L. The synthesized compositions didn't cause significant inhibition of the growth of the system radicular of the tested plants. Though, new tests will be accomplished because, those compositions can interfere in another vital processes of the plants, that can show later or in another part of the plant.
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Campos, João Mário Gomes. "Produção de diesel por via catalítica." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/13765.
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Mestrado em Engenharia QuímicaA produção de diesel é deficitária face a procura mundial, facto que tem fomentado a investigação de alternativas processuais para colmatar este diferencial negativo. Neste trabalho estudou-se a produção de diesel por via catalítica, processo com interesse real para as refinarias atuais. Numa primeira fase, o trabalho centrou-se na pesquisa e análise comparativa de resultados da literatura acerca da conversão de olefinas na presença de catalisadores mesoporosos. Com base nesta pesquisa, estudou-se a produção de diesel através da oligomerização do but-1-eno na presença de um catalisador ácido, nomeadamente, um aluminossilicato mesoporoso (ASM) sintetizado na Universidade de Aveiro. Comparou-se o desempenho catalítico do ASM com o de um zeólito comercial bem conhecido: o ZSM-5. O material ASM foi caraterizado por difração de raios-X de pós, espectroscopia de ressonância magnética nuclear de estado sólido e foram medidas isotérmicas de equilíbrio de adsorção/dessorção de N2 a 77 K. As reações catalíticas foram realizadas num reator de leito fixo, a 473 K. As misturas reacionais foram analisadas por cromatografia gasosa. Investigou-se a influência das condições reacionais (pressão, massa de catalisador, caudal de olefina) na reação catalítica. Em todos os casos obtiveram-se produtos na gama do diesel, estando as conversões medidas entre 31 e 84%. Os catalisadores foram caracterizados antes e depois das reação catalítica e não foram observadas alterações estruturais significativas.
Today's diesel production is deficient regarding worldwide necessities, and this reality has encouraged the investigation of procedural alternatives in order to contradict this fact. This work focused on the investigation of diesel production by a catalytic process, which may be a highly relevant process for today's refineries. In a first stage, this study focused primarily on the search and comparison of results from the literature regarding olefins conversion in the presence of mesoporous catalysts. Based on this search, it was studied the diesel production by the oligomerization of but-1-ene in the presence of an acid catalyst, a mesoporous aluminosilicate (ASM), synthesized at the University of Aveiro. The catalytic performance of ASM was compared with that of a commercial material, the well-known ZSM-5 zeolite. The characterization of the ASM and ZSM-5 materials was accomplished by powder X-ray diffraction, solid state nuclear magnetic resonance spectroscopy, and measurement of equilibrium adsorption/desorption isotherms of N2 a 77 K. The catalytic reactions were performed using a fixed bed reactor at 473 K. The amount of products formed was determined by gas chromatography. The influence of the reactional conditions (pressure, mass of catalyst, flow rate of olefin) on the catalytic reaction of the olefin was studied. In all cases, diesel-range products were obtained, and the measured conversions lied between 31 and 84%. The applied catalysts were characterized before and after the catalytic assays, and no significant structural changes were observed.
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Sothirajah, Shobana. "Clinical Algorithms for Maintaining Asthma Control." Thesis, The University of Sydney, 2008. http://hdl.handle.net/2123/3546.
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Rationale: Asthma management aims to achieve optimal control on the minimal effective dose of medication. We assessed the effectiveness of two algorithms to guide ICS dose in well-controlled patients on ICS+LABA in a double-blind study, comparing dose adjustment guided by exhaled nitric oxide (eNO) to clinical care algorithm(CCA) based on symptoms and lung function. Methods: We randomised non-smoking adult asthmatics on minimum FP dose 100μgs daily +LABA to ICS adjustment using eNO or CCA, assessed over 5 visits during 8 months treatment. Primary endpoints were asthma-free days and asthma related quality of life (QOL). Analysis was by mixed model regression and generalised estimating equations with log link. Results: 69 subjects were randomised (eNO:34, CCA:35) and 58 completed the study. At baseline mean FEV1 was 94% pred., mean eNO (200ml/sec) 7.1 ppb, median ACQ6 score 0.33. Median ICS dose was 500 μg (IQR 100-500) at baseline and 100 μg on both eNO (IQR 100-200) and CCA arms (IQR 100–100) at end of study. There were no significant differences between eNO and CCA groups in asthma-free days (RR=0.92, 95% CI 0.8–1.01), AQL (RRAQL
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Sothirajah, Shobana. "Clinical Algorithms for Maintaining Asthma Control." University of Sydney, 2008. http://hdl.handle.net/2123/3546.
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Master of Science in MedicineRationale: Asthma management aims to achieve optimal control on the minimal effective dose of medication. We assessed the effectiveness of two algorithms to guide ICS dose in well-controlled patients on ICS+LABA in a double-blind study, comparing dose adjustment guided by exhaled nitric oxide (eNO) to clinical care algorithm(CCA) based on symptoms and lung function. Methods: We randomised non-smoking adult asthmatics on minimum FP dose 100μgs daily +LABA to ICS adjustment using eNO or CCA, assessed over 5 visits during 8 months treatment. Primary endpoints were asthma-free days and asthma related quality of life (QOL). Analysis was by mixed model regression and generalised estimating equations with log link. Results: 69 subjects were randomised (eNO:34, CCA:35) and 58 completed the study. At baseline mean FEV1 was 94% pred., mean eNO (200ml/sec) 7.1 ppb, median ACQ6 score 0.33. Median ICS dose was 500 μg (IQR 100-500) at baseline and 100 μg on both eNO (IQR 100-200) and CCA arms (IQR 100–100) at end of study. There were no significant differences between eNO and CCA groups in asthma-free days (RR=0.92, 95% CI 0.8–1.01), AQL (RRAQL
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Fu, Lin [Verfasser], Xiangyu [Akademischer Betreuer] [Gutachter] Hu, Takayuki [Gutachter] Aoki, and Nikolaus A. [Gutachter] Adams. "Numerical methods for computational fluid dynamics - a new ENO paradigm and a new domain decomposition method / Lin Fu ; Gutachter: Takayuki Aoki, Nikolaus A. Adams, Xiangyu Hu ; Betreuer: Xiangyu Hu." München : Universitätsbibliothek der TU München, 2017. http://d-nb.info/1141904691/34.
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Snow, Janet P. "Information and communication technology driven teaching and learning opportunities in support of environmental education processes : a case of the eno-environment online programme at Treverton Preparatory School, South Africa /." Thesis, Rhodes University, 2008. http://eprints.ru.ac.za/1623/.
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Mireski, Sandro Lucio. "Estudo sobre o processo pericíclico (eno-imino versus cicloadição 1,3-dipolar) envolvido nas reações de acoplamento de iminas catalisadas por ácidos e síntese de imidazolidinas como potenciais precursores de diaminas vicinais." reponame:Repositório Institucional da UFSC, 2012. http://repositorio.ufsc.br/xmlui/handle/123456789/94860.
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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2011Made available in DSpace on 2012-10-25T17:11:30Z (GMT). No. of bitstreams: 1 292116.pdf: 10985219 bytes, checksum: 013ea0fd7381604fa7d77978b9097528 (MD5)
A reação de acoplamento da imina 234 catalisada por ácido ocorre por um mecanismo de cicloadição 1,3-dipolar formando uma mistura diastereoisomérica das imidazolidinas cis-241 e trans-242. A imina 229 foi utilizada como modelo diferenciador na reação de acoplamento catalisada por ácido e pela determinação da estrutura cristalina por difração de raios X de um dos produtos tosilados isolados. A N-tosilimidazolidinas 245 foi favorável ao mecanismo de cicloadição 1,3-dipolar. Diferentes solventes e ácidos foram testados nas reações de cicloadição 1,3-dipolar da imina 250 de tal forma a buscar as melhores condições reacionais. Uma série de iminas (250-275) derivadas da 2-aminometilpiridina (232) foi preparada e submetida à reação de cicloadição 1,3-dipolar catalisada por ácido. A tosilação do bruto isolado forneceu as respectivas N-tosilimidazolidinas (277A e 277B # 294A e 294B). A análise difração de raios X do complexo mononuclear de Zn 305 foi determinante para verificar a formação da mistura de diaminas vicinais obtidas a partir das imidazolidinas cis/trans 250 via redução com cianoboroidreto de sódio em AcOH/MeOH. A redução das N-tosilimidazolidinas 276A, 276B e 290B ocorreu de maneira regiosseletiva levando a formação das respectivas diaminas vicinais 306, 307 e 308.
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Li, Ru. "Numerical simulations of natural or mixed convection in vertical channels : comparisons of level-set numerical schemes for the modeling of immiscible incompressible fluid flows." Phd thesis, Université Paris-Est, 2012. http://tel.archives-ouvertes.fr/tel-00806510.
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The aim of this research dissertation is at studying natural and mixed convections of fluid flows, and to develop and validate numerical schemes for interface tracking in order to treat incompressible and immiscible fluid flows, later. In a first step, an original numerical method, based on Finite Volume discretizations, is developed for modeling low Mach number flows with large temperature gaps. Three physical applications on air flowing through vertical heated parallel plates were investigated. We showed that the optimum spacing corresponding to the peak heat flux transferred from an array of isothermal parallel plates cooled by mixed convection is smaller than those for natural or forced convections when the pressure drop at the outlet keeps constant. We also proved that mixed convection flows resulting from an imposed flow rate may exhibit unexpected physical solutions; alternative model based on prescribed total pressure at inlet and fixed pressure at outlet sections gives more realistic results. For channels heated by heat flux on one wall only, surface radiation tends to suppress the onset of recirculations at the outlet and to unify the walls temperature. In a second step, the mathematical model coupling the incompressible Navier-Stokes equations and the Level-Set method for interface tracking is derived. Improvements in fluid volume conservation by using high order discretization (ENO-WENO) schemes for the transport equation and variants of the signed distance equation are discussed
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Assis, Lívia Coelho de. "Avaliação da atividade cicatrizante do extrato etanólico e do Triterpeno 3, 6 , 16 Trihydroxylup-20 (29) - Eno provenientes de folhas de Combretum leprosum mart. no tratamento de lesões cutâneas induzidas em camundongos." reponame:Repositório Institucional da UFC, 2015. http://www.repositorio.ufc.br/handle/riufc/14020.
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ASSIS, Lívia Coelho de. Avaliação da atividade cicatrizante do extrato etanólico e do Triterpeno 3, 6 , 16 Trihydroxylup-20 (29) - Eno provenientes de folhas de Combretum leprosum mart. no tratamento de lesões cutâneas induzidas em camundongos. 2015. 65 f. Dissertação (Mestrado em Patologia) – Faculdade de Medicina, Universidade Federal do Ceará, Fortaleza, 2015.Submitted by denise santos (denise.santos@ufc.br) on 2015-11-19T13:30:46Z No. of bitstreams: 1 2015_dis_lcassis.pdf: 1077040 bytes, checksum: 0250c79249643f6ebf1a715508586500 (MD5)
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Wound healing is a complex and dynamic process involving an integrated action of several cell types, extracellular matrix and soluble mediators such as cytokines, which serve to recover the integrity of damaged anatomical structure. Natural products are the basis for many biotechnological inputs, as they are biologically active compounds with great potential for therapeutics and can provide molecular basis for many drugs in the clinics. Combretum leprosum Mart. is a native species of Caatinga, important biome in the Brazilian semiarid region, being popularly used in Brazil for the treatment of many diseases such as skin diseases. This study aimed to investigate the pro-healing potential of the ethanol extract (EECL) and the bioactive triterpene 3β, 6 β, 16 β-trihydroxylup-20 (29) ene (CLF-1) isolated from leaves of C. leprosum. Cell migration assay was performed using fibroblasts, which were treated with CLF-1 (1.75 µg / ml and 2.5 µg / ml) and analyzed after 0, 6 and 24 hours. Skin wounds (1 cm2) were induced in the dorsal region of mice (n = 30) and were treated with daily topical application (100µl) according to the group: saline, EECL (100μg / ml) and CLF-1 (100μg / ml) for 12 days. The results showed that CLF-1 did not show toxicity to fibroblasts and further increased cell proliferation and migration so that a significant increase on injury closing percentage was observed using both concentrations (1.75 mg / ml vs 2.5 mg / mL,) compared to control (p <0.05). Within 24 hours, there was also a significant increase in the rate of migration comparing CLF-1 at 2.5 ug / ml and control group (p<0.05). For the in vivo analysis, on the 2nd post surgical day (PS), the lesions treated with EECL and CLF-1 showed moderate presence of vessels in granulation tissue progressing to the dermis, as well as a slight inflammatory infiltrate. It was also observed that, on the 7th PS day, the animals treated with CLF-1 showed moderate angiogenesis, whereas animals treated with saline showed cell proliferation and migration into the wound. Furthermore, on the 12th day PS, the animals treated with EECL and CLF-1 showed complete closing of the injury, while those receiving saline exhibited open wounds. Thus, it was concluded that EECL and CLF-1 showed pro-healing effects, as well as a possible anti-inflammatory action and additional research is needed to elucidate its mechanisms in the wound healing process.
A cicatrização cutânea é um processo complexo e dinâmico que envolve uma ação integrada de vários tipos celulares, matriz extracelular e mediadores solúveis como citocinas, que tem por finalidade a recuperação da integridade da estrutura anatômica danificada. Produtos naturais são a base para diversos insumos biotecnológicos, pois são compostos biologicamente ativos com grande potencial terapêutico, e que podem formar bases moleculares para muitas drogas em uso clínico. Combretum leprosum Mart. é uma espécie nativa da Caatinga, bioma importante na região do semiárido brasileiro, sendo esta espécie popularmente utilizada no Brasil para o tratamento de diversas doenças, tais como doenças de pele. O presente estudo investigou o potencial pró-cicatrizante do extrato etanólico (EECL) e do triterpeno bioativo 3β, 6 β, 16 β-trihydroxylup-20 (29)-eno (CLF-1) isolado das folhas de C. leprosum. Para isto, o ensaio de migração de células foi realizado com fibroblastos, que foram pós tratados com CLF-1 (1,75 μg/mL e 2,5 μg/mL) e analisados em 0, 6 e 24 horas. Feridas cutâneas (1 cm2) foram realizadas na zona dorsal de camundongos (n=30) e em seguida foram tratadas com uma aplicação tópica diária (100 μl) de acordo com o grupo: salina, EECL (100μg/mL) e CLF-1 (100μg/mL) durante 12 dias. Os resultados demonstraram que CLF-1 não apresentou toxicidade aos fibroblastos e, ainda, em 6 horas estimulou a proliferação e migração celular, de modo que observou-se um aumento significativo na porcentagem de fechamento em ambas concentrações (1,75 μg/mL e 2,5 μg/mL) em relação ao controle (p<0,05). Em 24 horas, verificou-se também aumento significativo na taxa fechamento quando comparado CLF-1 2,5 μg/mL em relação ao controle (p<0,05). Na avaliação in vivo, observou-se no 2° dia pós cirúrgico (P.C.), que as lesões tratadas com EECL e CLF-1 mostraram presença moderada de vasos no tecido de granulação, progredindo na derme, bem como apresentaram um leve infiltrado inflamatório. Observou-se, ainda, que no 7° dia P.C. os animais tratados com CLF-1 demonstraram moderada angiogênese, enquanto que os animais tratados com salina apresentaram proliferação e migração celular em direção ao leito da ferida. Ademais, no 12° dia P.C., os animais tratados com EECL e CLF-1 apresentaram o fechamento completo da lesão, enquanto os que receberam salina, apresentaram, ainda, feridas abertas. Desta forma, foi possível concluir que o EECL e o CLF-1 apresentaram efeitos pró-cicatrizante, bem como uma possível ação anti-inflamatória e investigações adicionais são necessárias para elucidar o mecanismo de ação no processo de cicatrização cutânea.
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Assis, LÃvia Coelho de. "Healing activity assessement of the ethanolic extract and Triterpene 3Β, 6 Β, 16 Β Trihydroxylup-20 (29) â Eno from combretum leprosum leafs in the treatment of cutaneos lesions induced in mice." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15556.
Full textAbstract:
CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel SuperiorWound healing is a complex and dynamic process involving an integrated action of several cell types, extracellular matrix and soluble mediators such as cytokines, which serve to recover the integrity of damaged anatomical structure. Natural products are the basis for many biotechnological inputs, as they are biologically active compounds with great potential for therapeutics and can provide molecular basis for many drugs in the clinics. Combretum leprosum Mart. is a native species of Caatinga, important biome in the Brazilian semiarid region, being popularly used in Brazil for the treatment of many diseases such as skin diseases. This study aimed to investigate the pro-healing potential of the ethanol extract (EECL) and the bioactive triterpene 3β, 6 β, 16 β-trihydroxylup-20 (29) ene (CLF-1) isolated from leaves of C. leprosum. Cell migration assay was performed using fibroblasts, which were treated with CLF-1 (1.75 Âg / ml and 2.5 Âg / ml) and analyzed after 0, 6 and 24 hours. Skin wounds (1 cm2) were induced in the dorsal region of mice (n = 30) and were treated with daily topical application (100Âl) according to the group: saline, EECL (100μg / ml) and CLF-1 (100μg / ml) for 12 days. The results showed that CLF-1 did not show toxicity to fibroblasts and further increased cell proliferation and migration so that a significant increase on injury closing percentage was observed using both concentrations (1.75 mg / ml vs 2.5 mg / mL,) compared to control (p <0.05). Within 24 hours, there was also a significant increase in the rate of migration comparing CLF-1 at 2.5 ug / ml and control group (p<0.05). For the in vivo analysis, on the 2nd post surgical day (PS), the lesions treated with EECL and CLF-1 showed moderate presence of vessels in granulation tissue progressing to the dermis, as well as a slight inflammatory infiltrate. It was also observed that, on the 7th PS day, the animals treated with CLF-1 showed moderate angiogenesis, whereas animals treated with saline showed cell proliferation and migration into the wound. Furthermore, on the 12th day PS, the animals treated with EECL and CLF-1 showed complete closing of the injury, while those receiving saline exhibited open wounds. Thus, it was concluded that EECL and CLF-1 showed pro-healing effects, as well as a possible anti-inflammatory action and additional research is needed to elucidate its mechanisms in the wound healing process.
A cicatrizaÃÃo cutÃnea à um processo complexo e dinÃmico que envolve uma aÃÃo integrada de vÃrios tipos celulares, matriz extracelular e mediadores solÃveis como citocinas, que tem por finalidade a recuperaÃÃo da integridade da estrutura anatÃmica danificada. Produtos naturais sÃo a base para diversos insumos biotecnolÃgicos, pois sÃo compostos biologicamente ativos com grande potencial terapÃutico, e que podem formar bases moleculares para muitas drogas em uso clÃnico. Combretum leprosum Mart. à uma espÃcie nativa da Caatinga, bioma importante na regiÃo do semiÃrido brasileiro, sendo esta espÃcie popularmente utilizada no Brasil para o tratamento de diversas doenÃas, tais como doenÃas de pele. O presente estudo investigou o potencial prÃ-cicatrizante do extrato etanÃlico (EECL) e do triterpeno bioativo 3β, 6 β, 16 β-trihydroxylup-20 (29)-eno (CLF-1) isolado das folhas de C. leprosum. Para isto, o ensaio de migraÃÃo de cÃlulas foi realizado com fibroblastos, que foram pÃs tratados com CLF-1 (1,75 μg/mL e 2,5 μg/mL) e analisados em 0, 6 e 24 horas. Feridas cutÃneas (1 cm2) foram realizadas na zona dorsal de camundongos (n=30) e em seguida foram tratadas com uma aplicaÃÃo tÃpica diÃria (100 μl) de acordo com o grupo: salina, EECL (100μg/mL) e CLF-1 (100μg/mL) durante 12 dias. Os resultados demonstraram que CLF-1 nÃo apresentou toxicidade aos fibroblastos e, ainda, em 6 horas estimulou a proliferaÃÃo e migraÃÃo celular, de modo que observou-se um aumento significativo na porcentagem de fechamento em ambas concentraÃÃes (1,75 μg/mL e 2,5 μg/mL) em relaÃÃo ao controle (p<0,05). Em 24 horas, verificou-se tambÃm aumento significativo na taxa fechamento quando comparado CLF-1 2,5 μg/mL em relaÃÃo ao controle (p<0,05). Na avaliaÃÃo in vivo, observou-se no 2 dia pÃs cirÃrgico (P.C.), que as lesÃes tratadas com EECL e CLF-1 mostraram presenÃa moderada de vasos no tecido de granulaÃÃo, progredindo na derme, bem como apresentaram um leve infiltrado inflamatÃrio. Observou-se, ainda, que no 7 dia P.C. os animais tratados com CLF-1 demonstraram moderada angiogÃnese, enquanto que os animais tratados com salina apresentaram proliferaÃÃo e migraÃÃo celular em direÃÃo ao leito da ferida. Ademais, no 12 dia P.C., os animais tratados com EECL e CLF-1 apresentaram o fechamento completo da lesÃo, enquanto os que receberam salina, apresentaram, ainda, feridas abertas. Desta forma, foi possÃvel concluir que o EECL e o CLF-1 apresentaram efeitos prÃ-cicatrizante, bem como uma possÃvel aÃÃo anti-inflamatÃria e investigaÃÃes adicionais sÃo necessÃrias para elucidar o mecanismo de aÃÃo no processo de cicatrizaÃÃo cutÃnea.
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Oliveira, ?ngelo Anderson Silva de. "S?ntese e caracteriza??o do l?quido i?nico tetrafluoroborato de 1-metil-3-(2,6-(S)-dimetiloct-2-eno)-imidazol como eletr?lito para produ??o de hidrog?nio via eletr?lise da ?gua." Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br:8080/jspui/handle/123456789/12992.
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Ionic liquids (ILs) are organic compounds liquid at room temperature, good electrical conductors, with the potential to form as a means for electrolyte on electrolysis of water, in which the electrodes would not be subjected to such extreme conditions demanding chemistry [1]. This paper describes the synthesis, characterization and study of the feasibility of ionic liquid ionic liquid 1-methyl-3(2,6-(S)-dimethyloct-2-ene)-imidazole tetrafluoroborate (MDI-BF4) as electrolyte to produce hydrogen through electrolysis of water. The MDI-BF4 synthesized was characterized by thermal methods of analysis (Thermogravimetric Analysis - TG and Differential Scanning Calorimetry - DSC), mid-infrared spectroscopy with Fourier transform by method of attenuated total reflectance (FTIR-ATR), nuclear magnetic resonance spectroscopy of hydrogen (NMR 1H) and cyclic voltammetry (CV). Where thermal methods were used to calculate the yield of the synthesis of MDI-BF4 which was 88.84%, characterized infrared spectroscopy functional groups of the compound and the binding B-F 1053 cm-1; the NMR 1H analyzed and compared with literature data defines the structure of MDI-BF4 and the current density achieved by MDI-BF4 in the voltammogram shows that the LI can conduct electrical current indicating that the MDI-BF4 is a good electrolyte, and that their behavior does not change with the increasing concentration of water
Os l?quidos i?nicos (LIs) s?o compostos org?nicos l?quidos ? temperatura ambiente, bons condutores el?tricos, com potencial para constitu?rem como meio eletr?lito para a eletr?lise da ?gua, no qual os eletrodos n?o seriam submetidos a condi??es t?o extremas de exig?ncia qu?mica [1]. O presente trabalho descreve a s?ntese, a caracteriza??o e o estudo da viabilidade do l?quido i?nico tetrafluoroborato de 1-metil-3(2,6-(S)-dimetiloct-2-eno)-imidazol (MDI-BF4) como eletr?lito para a produ??o de hidrog?nio atrav?s da eletr?lise da ?gua. O MDI-BF4 sintetizado foi caracterizado por: m?todos t?rmicos de an?lise (An?lise Termogravim?trica - TG e Calorimetria Explorat?ria Diferencial - DSC); espectroscopia de infravermelho m?dio com transformada de Fourier pelo m?todo da reflect?ncia total atenuada (FTIR-ATR); espectroscopia de resson?ncia magn?tica nuclear de hidrog?nio (RMN 1H) e voltametria c?clica (VC). Onde os m?todos t?rmicos foram utilizadas para calcular o rendimento da s?ntese do MDI-BF4 que foi de 88,84 %; a espectroscopia de infravermelho caracterizou os grupos funcionais do composto e a liga??o B-F em 1053 cm-1; o RMN 1H analisado e comparado com dados da literatura define a estrutura do MDI-BF4 e a densidade de corrente alcan?ada pelo MDI-BF4 no voltamograma mostra que o LI consegue conduzir corrente el?trica indicando que o MDI-BF4 ? um bom eletr?lito e que seu comportamento n?o sofre altera??o com o aumento da concentra??o de ?gua
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Wheeller, Brian. "Critiquing eco/ego/sustainable tourism : broadening horizons." Thesis, Cardiff Metropolitan University, 2006. http://hdl.handle.net/10369/6250.
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In the early 1990's, I argued that the real issues, those at the crux of tourism impact problems, were not being addressed - pertinent questions ignored amidst the blossoming euphoria of green rhetoric. A process emerged in tourism development whereby ego-enhancing, politically correct sound bites drowned out the voice of reason, namely common sense. Wonderfully self-satisfying, this proved a smug and timely convenience as politicians, planners, 'travellers' and increasingly (even) many tourism academics appeared to see problems without answers as an anathema. There must either be 'answers' irrespective of their practical effectiveness or a process be enthusiastically embraced whereby difficult questions are eliminated, or dismissed to the realms of the nihilistic fringe. Enter eco/ego/sustainable tourism. Scoring heavily on both counts, dovetailing nicely into the milieu of deceit while simultaneously reinforcing the required veneer of respectable positivism, it enabled the mundane, but crucial (and I argue intractable) questions to be systematically and deliberately sidestepped. Fifteen years on, little has changed. The futility of sustainable tourism is around us for all to see - should we choose, or care, to look. But, even now, we cannot face up to seeing it for what it is. Or, actually, what it isn't. The canard continues. Focussing on eco/ego/sustainable tourism, the thesis presents selected published works reflecting the nexus of my thinking on - and contribution to - the body of learning. It is a subjective, emotive perspective, with the emphasis on 'the personal'. And the eclectic. Concomitantly, the author advocates the use of 'visual' imagery, much in evidence in the publications, to fire imagination. The works seek to illustrate the manner in which empirical observation, experience and theory are all interwoven. Consequently, it is not just a matter of content, but of process: the means of illuminating and conveying ideas, and of teaching, are also explored. The essence of the argument presented in the thesis is that the void, the chasm between theory and practice, between what (perhaps) 'should be' and what actually 'is', cannot be bridged. The sheer number of tourists travelling, the absolute volume involved, combined with widespread corruption and the increasing adoption (universally?) of a 'what's in it for me, now' mentality, together negate any 'sustainable' efforts of redemption. My cynical views of eco/ego/sustainable tourism have not mellowed over the years. On the contrary, they have hardened as, alarmed, I have become increasingly pessimistic in (the dismal) light of the burgeoning optimism of others as to the potential, always potential, of sustainability. Dream on. The counter plea here, then - in ever more stringent tones - is that of the necessity to contextualise eco/ego/sustainable tourism within reality - to exit fantasy land. I, too, can dream, can't I?
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Costa, Adilson Vidal. "Atribuição Inequívoca dos Sinais de RMN de 1H e de 13C do Glaucolídeo B, Síntese de seus Derivados e Síntese de 2-Fenil-6,7-exo-Isopropilidenodioxi- 8-Oxabiciclo-[3.2.1]-Oct-2-eno, Visando a Obtenção de Novos Herbicidas." Universidade Federal de Minas Gerais, 2008. http://hdl.handle.net/1843/SFSA-85RVSS.
Full textAbstract:
Considering the increasing need of new chemical products for the
rational and efficient weeds control, it was conducted a research of new
compounds provided with herbicide activity, as well as the study for unequivocal determination of Glaucolide B [1], structure a sesquiterpene lactone containing a cycle of ten members. For this, the Glaucolide B was isolated from the aerial part of Vernonia fruticulosa Mart., from Asteraceae family. The catalytic hidrogenation of compound 1 resulted in the compound 2 with 74% yield and in the compound 3 with 25% yield. The treatment of compounds 1, 2 and 3 with water and trifluoracetic acid led to the compounds 6, 5 and 4, with 68%, 76% and 65% yields, respectively. Compound 7 was obtained by the deoxygenation of compound 2 with 26% yield.
In the present work the 2-phenyl-6, 7-exo-isopropylidenedioxy-8-
oxabicyclo[3.2.1]oct-2-ene [27] with potential herbicide activity, not yet
described in the literature, was also synthesized. Initially this compound was prepared from cycloaddition [3+4] between the furan and oxyallyl cation generated by the treatment 1-bromo-1-phenylpropan-2-one [22] with ethylamine, leading to the obtaining of the -phenyl-8-oxabicyclo[3.2.1]oct-6-en- 3-one [23]. Compound [23] was converted on a two stages process in 2-phenyl- 6,7-exo-isopropylidenodioxy-8-oxabicyclo[3.2.1]octan-3-one [25]. Treatment of this compound with sodium borohydride, followed by alcohol dehydratation led to the alkene.
The compounds studied had their structures determined by
spectroscopic methods: infrared and nuclear magnetic resonance, including COSY, HMQC, DEPT and NOESY techniques. For Glaucolide B spectra were obtained varying the temperature from -43ºC to 27ºC, with intervals of 10ºC.
The evaluation of the activity of those products was made in preliminary
bioassays, using, as test plants, the species Physalis ixocarpa, Lolium
multiflorum, Trifolium alexandrinum and Amaranthus hypochondriacus, being applied doses of 50, 100 and 200 mM of the synthesized compounds. The main products with herbicide activity were the compounds 4 and 5, which caused higher effect on all tested plants, standing out the inhibition of 90% caused by compound 5 on the germination of P. ixocarpa seeds. Evaluation of the oxabicyclos 27 and 34 was made under laboratory conditions with plants of Sorghum bicolor L. and Cucumis sativus L. using doses of 100 mM and 250 mM. In these bioassays, the isomeric compound 27 revealed to be most active upon
the development of the root system of the tested plants. These results indicated that the evaluated compounds are a class of organic compounds having a potential herbicide activity, thus justifying more detailed studies.Em virtude da crescente necessidade de novos produtos químicos para o controle racional e eficiente das pragas agrícolas, objetivou-se, com este trabalho, contribuir com as pesquisas de novos produtos com atividade herbicida, assim como no estudo para determinação completa da estrutura do Glaucolídeo B [1], uma lactona sesquiterpênica, contendo um ciclo de dez membros. Para isso, o Glaucolídeo B foi isolado da parte aérea da planta Vernonia fruticulosa Mart. pertencente à família Asteraceae. A hidrogenação catalítica do composto 1 resultou na obtenção do composto 2 com 74% de rendimento e do composto 3 com 25 % de rendimento. O tratamento dos compostos 1, 2 e 3 com água e ácido trifluoroácetico levou à obtenção dos compostos 4, 5 e 6, com rendimentos de 65%, 76% e 68% respectivamente. O composto 7 foi obtido pela desoxigenação do composto 2 com rendimento de 26%. No presente trabalho foi sintetizado também, o 2-fenil-6,7-exo-isopropilidenodioxi-8-oxabiciclo[3.2.1]oct-2-eno [27] com potencial atividade herbicida, ainda não descrita na literatura. Este composto foi preparado inicialmente a partir da cicloadição [4+3] entre o furano e o cátion oxialílico gerado pelo tratamento da 1-bromo-1-fenilpropan-2-ona [22], com trietilamina, levando à obtenção do 2-fenil-8-oxabiciclo[3.2.1]oct-6-en-3-ona [23], convertido em duas etapas no 2-fenil-6,7-exo-isopropilidenodioxi-8-oxabiciclo[3.2.1]octan-3-ona [25]. O tratamento desse composto com boridreto de sódio forneceu o álcool correspondente, cuja desidratação levou à obtenção do alqueno. As substâncias estudadas tiveram as suas estruturas determinadas através da utilização de métodos espectrométricos: infravermelho, ressonância magnética de hidrogênio e carbono-13, incluindo técnicas como: COSY, HMQC, DEPT e NOESY. Para o Glaucolídeo B obtiveram-se espectros variando a temperatura de -43 oC a 27 oC, com intervalos de 10 oC. A avaliação da atividade biológica das lactonas sesquiterpênicas foi feita a partir de ensaios preliminares com as espécies Physalis ixocarpa, Lolium multiflorum, Trifolium alexandrinum e Amaranthus hypochondriacus, aplicando-se doses de 50, 100 e 200 M do composto sintetizado. Os principais produtos com atividade herbicida foram os compostos 5 e 6, que causaram maior efeito sobre todas as plantas testadas, destacando-se a inibição de 90% causada pelo composto 5 sobre a germinação das sementes de Physalis ixocarpa. A avaliação dos oxabiciclos 27 e 34 foi feita sob condições de laboratório, com plantas de Sorghum bicolor L. e Cucumis sativus L., utilizando doses de 100 M e 250 M. Nestes bioensaios, o isômero 27 revelou-se o mais ativo sobre o desenvolvimento do sistema radicalar das plantas testadas. Estes resultados indicaram que os compostos avaliados constituem uma classe de compostos orgânicos com potencial atividade herbicida, sendo justificáveis estudos mais aprofundados sobre eles.
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Wenge, Matt. "Fearlessness the seventh element of drama." Master's thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5082.
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Aristotle proclaimed in his Poetics that there were six elements to drama: spectacle, music, diction, thought, character, and plot. This paper will analyze the play Thom Pain (based on nothing) against these six elements. I will discuss the aspects of each element that are present in the show as well as the ideas and concepts my director, Tad Ingram, and I brought to the show. Through the rehearsal and performance process I discovered a seventh element; the element of fearlessness. In his Poetics, Aristotle does not fully address what the actor brings to the performance and this aspect is just as important as what the script and staging bring to the performance.ID: 029810021; System requirements: World Wide Web browser and PDF reader.; Mode of access: World Wide Web.; Thesis (M.F.A.)--University of Central Florida, 2011.; Includes bibliographical references (p. 50).
M.F.A.
Masters
Theatre
Arts and Humanities
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Yasin, Sohail. "Eco-design for end-of-life phase of flame retardant textiles." Thesis, Lille 1, 2017. http://www.theses.fr/2017LIL10225/document.
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Les différentes phases du cycle de vie des textiles ignifugés (TIgni) ont des impacts importants sur l'environnement. Nombreuses études réalisées se sont principalement axées sur des méthodes de synthèse des molécules d’ignifugation. Cependant la phase de fin de vie des TIgni a été longtemps négligée, et nécessite aujourd’hui une attention particulière. Alors que la valorisation des déchets par incinération est une voie appropriée pour la gestion des déchets textiles, les TIgni posent des problèmes car les espèces ignifuges diminuent le rendement énergétique dans le processus d'incinération en raison d'une combustion incomplète et émettent des fumées toxiques. Nous proposons une méthode plus écologique de valorisation énergétique de ces déchets, par la dégradation et l'élimination préalable des substances ignifuges permanentes organophosphorés (MPDA) des textiles, en utilisant le procédé d'oxydation avancé (AOP) de Fenton. Ensuite, la valorisation thermique est réalisée par gazéification au lieu de l'incinération. La cinétique de dégradation de la MDPA, suivie en mesurant la DCO, semble dépendre des concentrations en réactifs de Fenton. Après ce traitement, les propriétés mécaniques du coton restent inchangées. Le test d'inflammabilité et les résultats thermogravimétriques (TGA, DTG et PCFC) confirment la dégradation du MDPA.Les résultats de gazéification montrent des propriétés de combustion accrues des textiles ignifuges après ce traitement qui permet donc d’éco-concevoir la valorisation énergétique de ces textiles. L’évaluation des impacts environnementaux réels en utilisant l’ACV permet de confirmer l’éco-conception de fin de vie des produits textiles ignifugésThe different life cycle phases of textiles with flame retardant (FR) finishes have substantial adverse impacts on environment. Several studies on the exposure of flame retardant have mainly focused on ways to provide environmentally friendly synthesis of flame retardants. However the end-of-life phase of the FR textiles seems neglected and needs great attention when the product life cycle is concerned. Though today, technologies for solid waste management are ever-improving, the end-of-life of flame retardant textile products create issues, by decreasing energy yield in the incineration process due to incomplete combustion and emission of toxic fumes.Therefore an eco-design was proposed with optimized disposals for the flame retardant textiles, by a prior degradation and elimination of a durable flame retardant substance (MDPA) from textiles, using advanced oxidation Fenton process. Then thermal valorization was achieved by gasification instead of incineration.The degradation kinetics of MDPA from cotton fabrics, monitored by measuring the COD of the reaction mixture, seems to depend on the Fenton reactant concentration. The mechanical properties of the cotton after the treatment are unaltered. The flammability test and thermogravimetric (TGA, DTG and PCFC) results confirmed the degradation of MDPA. The gasification results supported the eco-design by showing increased combustion properties of the FR textiles after the Fenton treatment allowing eco-design of energy valorization of textile wastes. Real environmental impacts evaluated by a life cycle assessment (LCA) tool confirm the eco-design of the end-of-life phase of flame retardant textile products
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Sánchez, Terrés Daniel. "Nuevas rutas sintéticas de perhidrofuro[2,3-b]furanos." Doctoral thesis, Universidad de Alicante, 2011. http://hdl.handle.net/10045/21401.
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En la presente memoria se describen nuevos métodos sintéticos desarrollados para la preparación de compuestos que poseen la unidad de perhidrofuro[2,3-b]furano. En el Capítulo 1 se describe una nueva metodología, basada en la reacción de Wacker, que permite obtener de una manera directa perhidrofuro[2,3-b]furanos a partir de 3-metiliden-1,5-dioles. En el Capítulo 2 se estudia la preparación de nuevos 3-metiliden-1,5-dioles empleando dianiones dilitiados como intermedios de reacción. Estos metilidendioles son transformados en perhidrofurofuranos sustituidos en la posición 2. En el Capítulo 3 se explora la posibilidad de obtener otros 3-metiliden-1,5-dioles más funcionalizados, empleando reacciones eno-carbonilo y su posterior transformación en los correspondientes perhidrofuro[2,3-b]furanos sustituidos en la posición 2.
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Lima, Guilherme da Rocha. "Influência dos elementos de liga no encruamento proveniente do processo de aplainamento nos aços hadfield /." Bauru : [s.n.], 2011. http://hdl.handle.net/11449/96490.
Full textAbstract:
Orientador: Carlos Alberto SoufenBanca: Carlos Elias da Silva Junior
Banca: Momotaro Imaizumi
Resumo: O aço austenítico manganês, contendo cerca de 1,2%C e 12%Mn, é único na medida em que combina alta tenacidade e ductilidade com alta capacidade de endurecimento em trabalho, normalmente, boa resistência ao desgate. Consequentemente, este metal apresenta uma aceitação muito útil como material de engenharia, sendo amplamente utilizado, com pequenas modificações na composição e tratamento térmico, principalmente nas áreas de terraplanagem, minas e pedreiras, bem como perfuração de petróleo siderurgia, dragagem, a exploração florestal, e na fabricação de cimento e produtos de argila. Também são utilizados em equipamentos de manuseio e processamento térreo de materiais (tais como britadores, moinhos de trituração, dragadores, escavadoras baldes e dentes, e bombas para a movimentação de cascalho e rochas). Neste trabalho estudou-se a influência de composição química no encruamento e resistência ao desgaste do aço Hadfield. Foram analisadas quatro composições químicas diferentes desse material, que inicialmente foi submetido ao tratamento térmico de solubilização na temperatura de 1080ºC(1976ºC) com posterior resfriamento em água. Em seguida o material foi submetido ao processo de aplainamento no retirada de 1 mm de material. Dessas amostras, foram retirados corpos de prova para a análise metalográfica, que foram preparadas através do lixamento, polimento e ataque químico, e também o material para análise de desgaste, cujos corpos de prova foram preparados em formato cilíndrico com diâmetro e altura de dez milímetros. A análise metalográfica revelou menor profundidade de encruamento no material cuja composição apresenta titânio e alta porcentagem de cromo. Essa mesma composição, apresentou maior resistência ao desgaste
Abstract: The austenitic manganese steel, containing about 1,2%C and 12%Mn, is the only one which combines high tenacity and ductility with high tenacity and ductility with high capacity of hardening during the work, and usually, it has good resistance to wear As a result, this metal shows a very useful acceptance as a engineering material, being widely used with just small changes in the composition and termal treatment mainly in the lands of earthwork , mines and quarries, besides drilling of petroleum, steel mill, dredging, forestry exploration and in the manufacturing of cement and in the manufacturing of cement and clay products. They are also used in the equipments to handle ans work with land floor materials (like crushers, mill crushers, dredges, tooth and bucket excavators and pumps to move gravel and rocks). In this work it was studied the influence of the chemical composition on the hardening and resistance to wear of hadfield steel. Four different chemical compositions of this material were analyzed, at first it was subdued to a thermal treatment of folubilization in the temperature of 1080ºC (1976ºF) being chilled with water. After the material was subdued to the plaining process it was withdrawn 1mm. From this samples were withdrawn some parts to a metalography analysis and they were prepared to be sanded, polished and to a chemical attack ans the material that will be analyzed the wear, whose parts were prepared in a cylindrical shape with diameter and height of tem millimetres. The metalography analysis revealed a smaller deep in the hardening of the material whose composition has titanium and high percentage of chrome. In the same composition it was noticed a bigger resistance to wear
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Leles, José Luiz Rodrigues. "Reparo alveolar após implante de vidro bioativo : avaliação histológica em macacos /." Araçatuba : [s.n.], 2006. http://hdl.handle.net/11449/101044.
Full textAbstract:
Resumo: Há grande interesse no desenvolvimento de meios para manutenção ou recomposição alveolar visando a instalação de implantes osseointegráveis. No presente estudo o processo de reparo alveolar após implante de vidro bioativo (Biogran®) foi avaliado histologicamente. Quatro macacos-prego (Cebus apella) adultos tiveram seus incisivos superiores extraídos e os alvéolos preenchidos com vidro bioativo - Biogran® (Grupo Tratado, n=6 alvéolos) ou por coágulo sangüíneo (Grupo Controle, n=4 alvéolos). Aos 100 dias pós-operatórios os animais foram sacrificados e os espécimes removidos para processamento histológico. Observou-se que os alvéolos do Grupo Controle apresentavam tecido ósseo maduro distribuído irregularmente em trabéculas esparsas com grandes espaços medulares. Já no Grupo Tratado, encontravam-se preenchidos por uma rede de tecido ósseo neoformado com configuração lamelar e ampla ocupação alveolar. Os poucos fragmentos remanescentes do material foram vistos rodeados por tecido conjuntivo ou em contato direto com o tecido ósseo. Concluiu-se que o implante intra-alveolar de vidro bioativo favoreceu a neoformação óssea, atuando como agente osteocondutor.Abstract: Maintenance or reconstruction of alveolar process is a topic of great interest in oral rehabilitation with implants. The aim of this study was to investigate the histological features of alveolar wound healing in dental sockets grafted with bioactive glass. Four adult capuchin monkeys (Cebus apella) have their incisor teeth extracted and alveolus filled with particulate bioactive glass Biogran® (Test Group: n=6 alveolus) or blood coagulum (Control Group: n=4 alveolus). After 100 days, animals were sacrificed and specimens removed for histological processing. It was observed that Control Group presented mature neoformed bone irregularly distributed in few trabeculas with large medullar spaces. Alveolus of Test Group were filled with a net of lamellar neoformed bone. The few remaining particles of bioactive glass were surrounded by connective tissue or in close contact with bone tissue. It was concluded that intra-alveolar bioactive glass improved bone neoformation by osteoconductive action.
Orientador: Wilson Roberto Poi
Coorientador: Lizeti Toledo de Oliveira Ramalho
Banca: Robson Rodrigues Garcia
Banca: Daniela Atili Brandini
Banca: Idelmo Rangel Garcia Júnior
Doutor
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Swalve, Enno [Verfasser], Maximilian [Gutachter] Rudert, and Christof [Gutachter] Rader. "Wirksamkeit von niedrig dosierter Tranexamsäure bei Implantation von Knie - Endo - Prothesen / Enno Swalve ; Gutachter: Maximilian Rudert, Christof Rader." Würzburg : Universität Würzburg, 2020. http://d-nb.info/1223851281/34.
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Deco, Camila Porto de. "Influência da osteoporose e álcool na osseointegração de implantes em ratas /." São José dos Campos : [s.n.], 2009. http://hdl.handle.net/11449/87938.
Full textAbstract:
Orientador: Leonardo MarchiniBanca: Rosilene Fernandes da Rocha
Banca: Célia Marisa Rizzatti Barbosa
Resumo: O consumo de álcool e a osteoporose, individualmente, podem afetar o metabolismo ósseo e ter influência negativa sobre tratamentos com implantes odontológicos, comprometendo sua estabilidade biomecânica. Entretanto, os efeitos da associação entre esses dois fatores na osseointegração de implantes é desconhecido. O objetivo deste trabalho foi investigar parâmetros histomorfométricos da osseointegração em ratas sob consumo de álcool associado à osteoporose. Noventa e seis ratas foram divididas conforme o tipo de dieta e quanto à presença ou ausência hormonal. Grupo G1: Sham (ovariectomia simulada), água e ração ad libitum; G2: Sham, ração e solução de etanol a 20% ad libitum; G3: Sham, ração e solução de sacarose controladas para assegurar uma dieta isocalórica à de G2; G4: ovariectomia, água e ração ad libitum; G5: ovariectomia, ração e solução de etanol a 20% ad libitum; G6: ovariectomia, ração e solução de sacarose controladas para assegurar uma dieta isocalórica à de G5. Cada grupo foi subdividido em A e B, de acordo com o tempo de osseointegração: 4 ou 6 semanas, respectivamente. Um mês após a ovariectomia ou Sham foi iniciada a dieta e um mês depois foi realizada a cirurgia para colocação dos implantes de titânio nos fêmures dos animais. Após a eutanásia, os fêmures foram avaliados por histomorfometria para quantificação da superfície de contato direto entre osso e implante. Os grupos G5 e G6 foram os que apresentaram a menor porcentagem de contato direto ossoimplante quando comparados aos demais. Conclusão: A associação entre a deficiência estrogênica, provocada pela ovariectomia, e o consumo crônico de álcool pode prejudicar a osseointegração, assim como a associação entre deficiência estrogênica e redução no consumo de nutrientes.
Abstract: Alcohol intake and osteoporosis can, separately, affect bone physiology and have presented negative impacts on dental implant therapy. However, the effects of the association of both factors in the osseointegration are unknown. The aim of this study was evaluate osseointegration in rats alcohol fed and presenting induced osteoporosis. Methodology: Ninety-six female rats were divided according to diet and hormonal condition. Group G1: Sham (simulated ovariectomy), food and water ad libitum; G2: Sham, food and ethanol 20% solution ad libitum; G3: Sham, food and sucrose solution controlled to warranty an isocaloric diet in relation to G2; G4 ovariectomy, food and water ad libitum; G5 ovariectomy, food and ethanol 20% solution ad libitum; G6: ovariectomy, food and sucrose solution controlled to warranty an isocaloric diet to G5. The groups were subdivided according to time of osseointegration 4 or 6 weeks. Implants surgery was done one month after ovariectomy or Sham. After euthanasia, the femurs were removed and evaluated by histomorfometry. Results: Groups G5 and G6 showed the worse osseointegration condition. Conclusion: The association between estrogen deficiency and alcohol intake and the association between estrogen deficiency and reduced intake of nutrients can negatively affect osseointegration.
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Carreiro, Eduardo Augusto. "Ecoturismo : influência na educação física /." Rio Claro : [s.n.], 2003. http://hdl.handle.net/11449/96106.
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Orientador: Carmen Maria AguiarBanca: Leila Marrach Basto de Albuquerque
Banca: Wenceslao Machado de Oliveira Junior
Resumo: O objetivo principal deste estudo é identificar as atividades físicas associadas ao ecoturismo no município de Itapetininga, localizado no interior do estado de São Paulo, para analisar alguns aspectos da interferência dessas atividades no meio ambiente, como ocorre sua organização, a interface com o poder público e o papel da Organização não-governamental como mediadora destas questões. Procura-se analisar o impacto, na cultura local, das atividades conhecidas como esportes de aventura; as suas conexões com as práticas do ecoturismo; e se as mesmas implicam em algum envolvimento ou preocupação com a comunidade local. Os procedimentos da pesquisa foram desenvolvidos com um enfoque qualitativo, estruturado através de entrevistas direcionadas ao poder público, a uma organização não-governamental e a uma empresa organizadora de eventos de ecoturismo. Destacam-se neste trabalho, a análise e o recorte histórico das atividades de lazer desenvolvidas na cidade de Itapetininga, principalmente nos séculos XIX e XX, desde as atividades livres e intermitentes até as atividades institucionalizadas. Considerações sobre a comunidade; a natureza e a cultura; o lazer e o turismo também fazem parte das análises. No âmbito da Educação Física foi analisada a aproximação do trabalho desenvolvido pelos profissionais da área, com os pressupostos teóricos descritos acima. Assim, poderiam ser alavancados mais estudos sobre as novas modalidades esportivas, como as do esporte de aventura. Observa-se que essas práticas muitas vezes se desenvolvem sem critérios adequados, e ficam dispersas entre as fases de planejamento, execução e avaliação. Entendemos que a Educação Física pode desempenhar um papel fundamental como mediadora desta discussão. Os profissionais da área deveriam ter a capacidade de se concentrar em qualquer uma das três esferas estudadas... (Resumo completo, clicar acesso eletrônico abaixo).
Abstract: The main objective with this study is to identify physical activities associated to eco-tourism in the County of Itapetininga, located at São Paulo State inner area, in order to analyze some interference aspects of those activities in the environment, how their organization occurs, the relations with the Public Government, and the Non-Governmental Organization's role as mediator of such questions. It also searches to analyze the impact of the activities known as adventure sports in the local culture; their connections with eco-tourism practices; and whether those same activities result in any commitment or concern about the local community. The research procedures were developed upon a qualitative focus, which had been structured by means of interviews directed to the Public Government, to a Non-Governmental Organization, and to an eco-tourism events management company. The analysis and the historical excerpts of the leisure activities developed in the County of Itapetininga, mainly in the Nineteenth and the Twentieth Centuries, from intermittent and free activities to institutionalized activities are also highlighted in this research. Considerations on the community, nature and culture, leisure and tourism are part of such analysis too. The nearing between the work developed by professionals and the theoretical assumptions formerly described was analyzed in the Physical Education area. Therefore, could be launched other studies on new sports, such as adventure sports. It has been observed that those practices are often developed without adequate criteria, and disperse among planning, execution and evaluation phases. We understand that Physical Education can play a fundamental role as mediator in this discussion. Professionals of the area should have the ability to concentrate on any of the three studied domains. In other words... (Complete abstract, click electronic address below).
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Li, Jizhizi. "End-to-end Animal Matting." Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/22897.
Full textAbstract:
Image matting is a widely studied low-level vision problem that aims to provide a detailed foreground alpha matte from a single image, benefiting a wide range of downstream applications. However, most of the prevalent matting models are requiring extra manual intervention such as trimap or scribble. Besides, the lack of large-scale real-world annotated data has also caused poor generalizability in learned deep models. In this paper, we propose a novel end-to-end matting method called GFM along with a real-world, high-quality, category-wised animal matting dataset called AM-2k to address the above issues. The proposed end-to-end matting model GFM is short for Glance and Focus Matting Network, aims to conduct simultaneously trimap generation and matting by sharing one encoder and going through different decoders in separate branches. The design of GFM can help extract local and global information within one stage training process. Without the need for any extra input, GFM surpasses the previous state-of-the-art in performance on all evaluation metrics. Our proposed AM-2k consists of 20 categories mammals animals and 200 high-quality image for each category. We manually generate accurate mattes for each of them. Based on this dataset, we also set up three evaluation tracks, MIX-Track, DA-Track and CW-Track which can benefit the research on end-to-end matting, trimap-based matting, domain adaptation for matting and few shot learning. Extensive experiments and comprehensive analysis are performed on the AM-2k dataset to validate the effectiveness of GFM and its superiority over representative state-of-the-art methods. Various visual results can be found in Chapter 4 and Appendix.
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Mauricio, Ana Cecilia. "Human Eco-Dynamics In Huaca 20: Reassesing The Impact Of El Niño At The End Of The Early Intermediate Period." Pontificia Universidad Católica del Perú, 2016. http://repositorio.pucp.edu.pe/index/handle/123456789/113400.
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This article presents evidence of a mega Niño event that transpired around ca. 600 d.C. recovered at the archaeological site of Huaca 20-Complejo Maranga and discusses the human eco-dynamics that could have happened at the end of the Early Intermediate Period in this site and other settlements of the Lima Valleys. is information is compared with contemporary data from the North Coast. I propose that this period of environmental stress could have signied a time of opportunities for some societies of the Early Intermediate Period.Este artículo presenta evidencia de un mega El Niño ocurrido alrededor de ca. 600 d.C. registrada en el sitio arqueológico Huaca 20-Complejo Maranga. Se discute las dinámicas hombre-medio ambiente (ecodinámicas humanas), que pudieron haber sucedido a nes del Periodo Intermedio Temprano en este sitio y en otros asentamientos de los valles de Lima. Se compara también estos datos con información contemporánea procedente de la Costa Norte y se propone queeste periodo de stress ambiental pudo haber signicado un momento de oportunidad para las sociedades del Periodo Intermedio Temprano.
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Rangarajan, Vinod K. (Vinod Kashyap) 1975. "End-to-end connectivity across firewalls." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/47623.
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Thesis (S.B. and M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.Includes bibliographical references (leaves 53-54).
by Vinod K. Rangarajan.
S.B.and M.Eng.
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Chan, William. "End-to-End Speech Recognition Models." Research Showcase @ CMU, 2016. http://repository.cmu.edu/dissertations/723.
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For the past few decades, the bane of Automatic Speech Recognition (ASR) systems have been phonemes and Hidden Markov Models (HMMs). HMMs assume conditional indepen-dence between observations, and the reliance on explicit phonetic representations requires expensive handcrafted pronunciation dictionaries. Learning is often via detached proxy problems, and there especially exists a disconnect between acoustic model performance and actual speech recognition performance. Connectionist Temporal Classification (CTC) character models were recently proposed attempts to solve some of these issues, namely jointly learning the pronunciation model and acoustic model. However, HMM and CTC models still suffer from conditional independence assumptions and must rely heavily on language models during decoding. In this thesis, we question the traditional paradigm of ASR and highlight the limitations of HMM and CTC models. We propose a novel approach to ASR with neural attention models and we directly optimize speech transcriptions. Our proposed method is not only an end-to- end trained system but also an end-to-end model. The end-to-end model jointly learns all the traditional components of a speech recognition system: the pronunciation model, acoustic model and language model. Our model can directly emit English/Chinese characters or even word pieces given the audio signal. There is no need for explicit phonetic representations, intermediate heuristic loss functions or conditional independence assumptions. We demonstrate our end-to-end speech recognition model on various ASR tasks. We show competitive results compared to a state-of-the-art HMM based system on the Google voice search task. We demonstrate an online end-to-end Chinese Mandarin model and show how to jointly optimize the Pinyin transcriptions during training. Finally, we also show state-of-the-art results on the Wall Street Journal ASR task compared to other end-to-end models.