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1
Possiel, Benjamin Allen. "Point of Fixity Analysis of Laterally Loaded Bridge Bents." NCSU, 2008. http://www.lib.ncsu.edu/theses/available/etd-11192007-102130/.
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Research work in this thesis deals with the effects of lateral loads in the longitudinal direction on a substructure?s point of fixity. Full scale tests were performed to model and test a section of a bridge where the superstructure is connected to the substructure through elastomeric bearing pads. The connection rotational stiffness between the super and substructure was measured as an effect of applying a lateral load to the foundation element and creating a moment at the connection joint. A circular concrete pile, square concrete pile, and steel H-pile were tested in connection with both type V and type VI elastomeric bearing pads. The response of these full scale tests were then modeled in FB-MultiPier as tested and as an equivalent single foundation element. The model response was then compared to the measured results. Through the use of FB-MultiPier, three existing North Carolina bridges? foundation elements were analyzed to determine an effective range of partial head fixity and its compounding effects on the development of a foundation element?s depth to fixity.
2
Brown, Austin. "Investigation of near-fault ground motion effects on substandard bridge columns and bents." abstract and full text PDF (UNR users only), 2009. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1467743.
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Zhong, Jinquan. "Seismic fragility estimates for corroded reinforced concrete bridge structures with two-column bents." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3143.
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Bazáez, Gallardo Ramiro Andrés Gabriel. "Achieving Operational Seismic Performance of RC Bridge Bents Retrofitted with Buckling-Restrained Braces." PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/3476.
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Typical reinforced concrete (RC) bridges built prior to 1970 were designed with minimum seismic consideration, leaving numerous bridges highly susceptible to damage following an earthquake. In order to improve the seismic behavior of substandard RC bridges, this study presents the seismic performance of reinforced concrete bridge bents retrofitted and repaired using Buckling-Restrained Braces (BRBs) while considering subduction zone earthquake demands. In order to reflect displacement demands from subduction ground motions, research studies were conducted to develop quasi-static loading protocols and then investigate their effect on structural bridge damage. Results suggested that subduction loading protocols may reduce the displacement ductility capacity of RC bridge columns and change their failure mode. The cyclic performance of reinforced concrete bridge bents retrofitted and repaired using BRBs was experimentally evaluated using large-scale specimens and the developed loading histories. Three BRB specimens were evaluated with the aim of assessing the influence of these components on the overall performance of the retrofitted and repaired bents. Additionally, subassemblage tests were conducted in an effort to study the response of these elements and to allow for refined nonlinear characterization in the analysis of the retrofitted and repaired systems. The results of the large-scale experiments and analytical studies successfully demonstrated the effectiveness of utilizing buckling-restrained braces for achieving high displacement ductility of the retrofitted and repaired structures, while also controlling the damage of the existing vulnerable reinforced concrete bent up to an operational performance level.
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Yilmaz, Taner. "Seismic Response Of Multi-span Highway Bridges With Two-column Reinforced Concrete Bents Including Foundation And Column Flexibility." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12610191/index.pdf.
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Seismic design of highway bridges has improved as a result of the experience gained from large earthquakes of the last thirty years. Ductility demand and reserved capacity are extremely important response measures used in new bridge designs to assess target damage levels. However, the application of practical design approaches specified in bridge design codes is not well-defined for bridges over flexible foundations. Within the scope of this research, thirty two bridge models having varying column aspect ratio, amount of column longitudinal reinforcement and foundation flexibility parameters are investigated through a series of analyses such as response spectrum analysis and inelastic time-history analysis under &ldquosafety evaluation earthquake&rdquo
hazard level with a return period of 1000 years, and push-over analysis. Using the results of analyses, seismic response of the investigated bridges are identified with several measures such as displacement capacity over demand ratio, global displacement ductility demand, and response modification factor, along with maximum concrete and steel strains of columns. A correlation between concrete and steel strains and seismic response measure values is constructed to estimate damage levels with commonly used response measures. The findings of this research revealed that global displacement ductility demand is not a favorable response measure for assessing damage levels. On the other hand, displacement capacity over demand ratios can be suggested for estimation of damage levels especially where foundation flexibility effects are extensive as system yielding is not taken into consideration.
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Daniels, Joslyn B. Ramey George E. "Flood debris build-up loading and assessment of adequacy of ALDOT bridge pile bents during extreme flood/scour events." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Summer/master's/DANIELS_JOSLYN_47.pdf.
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Hudson, Genevieve. "Bent." PDXScholar, 2013. http://pdxscholar.library.pdx.edu/open_access_etds/1299.
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The following collection, Bent, is comprised of 11 stories and one novel excerpt. The stories, while they stand alone as individual works, are tied together by their questions. "Boy Box," "Lemons," "Claws," "Heart Feathers," "Hot," "Empire," and "How We Were Tamed" experiment with magic and suspension of disbelief in the most overt ways, while "Saints," "Glaciology," and "Cartographers and Creeps" seek instead to work within the constraints of folklore through less stated modes by adopting more of the atmospheric qualities of the tradition. The following stories are curious about the way fairy tales can be reworked to represent diverse, non-heteronormative, worldviews, while dealing explicitly with issues of sexuality, identity politics, and loss of innocence. The excerpt from Swallow is lifted from the opening pages of a novel in progress. Swallow follows Claire during a year at college as she investigates issues of art-making, obsession, bodies, and same sex attraction. There is also an overarching, more dystopian theme that deals with the climate crisis and raises questions about value making in a world that is degrading around us.
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Sutherland, John Charles. "Slightly bent." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1202501224/.
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Leander, Nils-Gregor. "Normality of bent functions monomial and binomial bent functions." [S.l.] : [s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=973440996.
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Arbus, Theodor. "Effektivisering av hip-hop beats : Att göra fler beats på kortare tid." Thesis, Linnéuniversitetet, Institutionen för musik och bild (MB), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-98717.
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I det här arbetet har jag jämfört två olika arbetssätt för att ta reda på hur jag kan effektivisera mitt skapande av hip-hop beats. Det första arbetssättet gick ut på att göra fyra beats per dag under en arbetsvecka så jag till slut hade 20 beats. Varje beat har inte tagit mer tid än en timme och är gjorda direkt efter varandra med en kvarts rast mellan beatsen. I det andra arbetssättet hade jag inte lika hård tidspress på mig. Jag gjorde då bara ett beat per dag under en veckas tid, så att jag fick fem beats totalt. Därefter upprepade jag de två olika arbetssätten under de kommande två veckorna och fick i slutänden 50 beats på fyra veckor. Jag ville ta reda på vilket av dessa två arbetssätt som gav mig flest beats som jag är nöjd med och som är färdiga att skicka till artister. Jag kom fram till att fyra beats per dag gav mig fler beats som jag blev nöjd med. Jag har även analyserat vilka metoder och workflows som fungerar bäst för mig när jag har gjort mina entimmes-beats och även gjort en uppskattning av beatsens hit rate.
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Bentz, Heather Heise. "Accumulated response." Thesis, Montana State University, 2008. http://etd.lib.montana.edu/etd/2008/bentz/BentzH0508.pdf.
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My paintings are abstractions of the repeated patterns, shapes and structure I see and experience every day. My inspiration comes in many forms: found objects dropped or discarded by others, plowed and planted acres of soil, fence posts along edges of fields, blasts of train whistles and the silent spaces between them. All share similarities of repetition-the positive/negative relationship of reoccurrences with a cadence of structure and order but which never can be fully captured or contained.
12
Rubini, P. A. "Flow modelling in pipe bends." Thesis, University of Sheffield, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234332.
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Sedrati, Arila. "L'"Orthosiphon stamineus" Benth. Labiées." Paris 5, 1988. http://www.theses.fr/1988PA05P214.
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Parsons, Daniel R. "Flow separation in meander bends." Thesis, University of Sheffield, 2003. http://etheses.whiterose.ac.uk/14757/.
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Most investigations of river meanders have concentrated on classical bends that have a helical flow structure through the pool, which is carried through into the entrance of the next bend. However, it is known that flow separation can occur at the outer bank before the bend apex or at the inner bank after the apex and that this results in the breakdown of the classical flow model. Although some of the controls and the implications of flow separation are now known, the frequency of occurrence, threedimensional (3-D) flow structure, sediment dynamics, controls on separation presence, and full geomorphological implications are poorly understood. This thesis uses a combination of fieldwork and 3-D numerical flow modelling (computational fluid dynamics, CFD) to investigate meander bends where flow separation and recirculation zones are present. An initial reconnaissance survey of over 600 bends revealed that flow separation is common, being present in approximately 50% of bends. The survey also identified high bend angles of tum and the high angles of flow impingement onto the outer bank as important controls on the presence of separation. Investigations in a 22 bend sub-set indicated that expansions in channel width, breaks in bank-line curvature and the angle of inflow, as governed by upstream planform, were important in generating flow separation. Detailed fieldwork combined with validated and verified time-averaged CFD modelling in three bends with separation zones enabled identification and examination of the 3-D flow fields. The simulations reveal that the flow structure in bends with separation differs considerably from the classical flow model, with the helical motion found in classical bends being very intense in the bend entrance but dissipating at or just after the bend apex. The turbulent flow structures produced by the shear layer between the downstream and recirculating flow are also investigated in the field bends and attempts at modelling transient flow structures with large eddy simulation (LES) in a simple open channel flow expansion are detailed. The geomorphological, sedimentological, and ecological implications of both the time-averaged and the transient flow structures within the bends are examined and discussed.
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Fantinatti, Amanda Miranda. "Estímulos fiscais em um modelo DSGE: bens duráveis versus bens não duráveis." reponame:Repositório Institucional do FGV, 2015. http://hdl.handle.net/10438/13509.
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A eclosão da crise financeira internacional de 2008 colocou o uso da política fiscal novamente no radar dos formuladores de políticas públicas como forma de impulsionar a atividade econômica. No presente trabalho, analisamos a desoneração do IPI sobre automóveis com o objetivo de fornecer contribuições em duas direções: i) estimar e calibrar um modelo DSGE de pequena escala para o Brasil que incorpore esse aspecto e ii) analisar o impacto específico dessa política nas principais variáveis macroeconômicas à luz do modelo. Os resultados sugerem que o impacto desse estímulo fiscal foi inicialmente positivo em estimular a atividade, mas com efeitos decrescentes.
The outbreak of the 2008 financial crisis put the fiscal policy again in the spotlight as a way to boost economic activity. In this paper, we analyze the IPI tax exemption on vehicles aiming to contribute in two directions: i) estimate and calibrate a small scale DSGE model for Brazil that incorporates this aspect; and ii) evaluate the impact of this specific policy on the main macroeconomic variables through the lens of the model. Our results suggest that the impact of this fiscal stimulus was initially positive in boosting economic activity, however with diminishing effects.
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Sulak, Fatih. "Constructions Of Bent Functions." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607035/index.pdf.
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In cryptography especially in block cipher design, Boolean functions are the
basic elements. A cryptographic function should have high nonlinearity as it can
be attacked by linear attack.
In this thesis the highest possible nonlinear boolean functions in the even
dimension, that is bent functions, basic properties and construction methods of
bent functions are studied. Also normal bent functions and generalized bent
functions are presented.
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Ames, Kelly. "Novel bent-core metallomesogens." Thesis, University of Nottingham, 2005. http://eprints.nottingham.ac.uk/11933/.
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Novel polycatenar bent-core Schiff-base metallomesogens from derivatives of 1,1 O-phenanthroline ([MCb(LPhen-n)]), 2,2-bipyridine ([MCb(L Bipy-n)]) and 5,5'-dimethyldipyrromethane ((tc)_[M(LDipy-n)] and ex-[M(L Dipy-n)]) have been investigated in this body of work. The mesomorphic properties of these first- and second-row transition metal complexes have been studied. Further to the examination of the compounds in the liquid crystalline state, single crystal X-ray studies of short chain analogues were performed to determine the coordination geometry and the degree of selfassembly of the molecules in the solid state. Chapter 1 introduces the field of liquid crystals and metallomesogens, with a focus on thermotropic liquid crystals and their nomenclature, physical properties and applications. The historical background of the field is briefly explored and previous research on bent-core metallomesogens from the Schroder group in Nottingham has been reviewed. The characterisation of liquid crystalline mesophases, namely by polarised optical microscopy, differential scanning calorimetry and X-ray diffraction, are described. Further discussion is dedicated to the X-ray diffraction patterns generated by columnar mesophases. The chapter finishes with a description of the aims of the project. Chapter 2 commences with an introduction to liquid crystals derived from 1,1 O-phenanthroline. Following this is a description of the synthesis and characterisation of mesomorphic metal-free ligands, LPhen-n (n = 10, 12, 14, 16), four novel series of metallomesogens and two non-mesomorphic series of complexes derived from 1,10-phenanthroline, [MCb(LPhen-n)] (M = Mn2+, Fe2~, C02+, Ni2+, Cu2+. Zn2+~ LPhen = 2.9-bis-[3' A ',5' -tri(alkoxy)phenyliminon1ethyl]- 1,1 O-phenanthroline: n = 8, 10, 12, 14, 16). Structural determination by single crystal X-ray diffraction of the analogous methoxy complexes [MCb(LPhen-l)] (M = Mn2+, C02+, Ni2+, Zn2+), and the complex without any lateral aliphatic groups [CuCb(LPhen-O)], revealed the metal (II) complexes to have either distorted trigonal bipyramidal, square pyramidal or octahedral coordination geometry. The mesomorphic behaviour of the complexes [MCb(LPhen-n)] (M = Mn2+, C02+, Ni2+, Zn2+; n = 8, 10, 12, 14, 16) and the metal-free ligands LPhen-n (n = 10, 12, 14, 16) is columnar (with the exception of the non-mesomorphic [CoCb(LPhen-8)]), and the 2D symmetries of these mesophases vary between hexagonal, rectangular and oblique. Chapter 3 is introduced with a discussion of liquid crystalline compounds derived from 2,2' -bipyridine. Subsequently, the synthesis and characterisation of four new series of metallomesogens and two nonmesomorphic compounds derived from 2,2' -bipyridine, [MCb(L Bipy-n)] (M = Mn2+, Fe2+, C02+ Cu2+ and n = 16; M = Ni2+, Zn2+ and n = 10, 12, 14, 16; L Bipy = 6,6' -bis-[3' ,4',5' -tri(alkoxy)phenyliminomethyl]-2,2' -bipyridine) are detailed. Single crystal X-ray diffractometry revealed the coordination geometry• of [MnCb(LBipy-l)], [CoCb(LBipY-l)] and [NiCb(LBipy-l)] to be octahedral, whereas [ZnCb(LBipY-l)] is distorted trigonal bipyramidal. The complexes [MCb(L Bipy-n)] (M = Mn2+, C02+ and n = 16; M = Ni2+, Zn2+ and n = 10, 12, 14, 16) exhibit mesomorphic character and again generate columnar mesophases. Finally, Chapter 4 begins with a discussion on pyrrole-derived liquid crystals. Consequently, the synthesis and characterisation of hexacatenar d compoun s [M(LDipH/)] \: (M -- 2H ,Zn 2+, Pd2+.' n = 10 ,_l', 1'1"t o 16', x. = 1, ,-), tetracatenar compounds tc_[M(LDip~-16)1\ (M = 2H, Zn2+, Pd2T ; x = 1, 2) and extended dicatenar compounds ex_[M(LDipy-n)]x (M = 2H, Zn2+, Pd2+; x = 1. 2) are described. Characterisation by X-ray diffraction of single crystals of [Zn(LDipy-l)h, ex-[Zn(LDipy-l)h show they exhibit a distorted tetrahedral geometry, forming double stranded helical structures, while ex-[Pd(L Dipyl)] has a distorted square planar geometry. The metal-free ligands H2LDip~-1/ (n = 10, 12, 14, 16) and complexes [Zn(LDipy-16)h and [Pd(LDipy-n)] (n = 12, 14, 16) all exhibit narrow mesomorphic temperature ranges and unidentified mesophases. The tetracatenar compound tc_[Zn(LDipy-16)h generates a columnar hexagonal mesophase and the complex tc_[Pd(LDipy-16)] generates an unidentified liquid crystalline phase, whereas the metal-free ligand tc-H2L Dipy-16 has no mesomorphic character. Finally, two of the extended dicatenar compounds ex-H 2L DipY-16 and ex-[Zn(L Dipy-16)h are non-mesomorphic, while ex-[Pd(L Dipy-16)] was found to have a smectic A phase.
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Grundy, Isla Mary. "Regeneration and management of Brachystegia spiciformis Benth. and Julbernardia globiflora (Benth.) Troupin in Miombo woodland, Zimbabwe." Thesis, University of Oxford, 1995. http://ora.ox.ac.uk/objects/uuid:2207086c-328c-4200-a243-f1391be3b1ce.
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Miombo is dry deciduous woodland dominated by leguminous tree species, covering a significant area of Africa south of the equator, including large parts of Angola, Malawi, Mozambique, Tanzania, Zaire, Zambia and Zimbabwe. This woodland type reaches its driest, most species-poor limit in Zimbabwe. Brachystegia spiciformis and Julbernardia globiflora are the two main dominants of the drier form of miombo. Miombo woodland represents a rich and diverse resource base for small-scale farmers throughout the region, the importance of which has been ignored in the past by managers and policy-makers. The development of sustainable management strategies for this resource has therefore been hampered by a lack of knowledge. For this reason, the overall objective of this research was to define the basis for sustainable management of these woodlands, firstly by developing techniques for measuring biomass and monitoring woody growth; secondly, by examining the effect of site conditions on productivity; and thirdly, by investigating biological and social aspects of the management of these woodlands. This research has found that good estimations of standing wood biomass of these two species can be derived from diameter and stem length measurements, thus providing woodland managers with a means of assessing the standing stock. The finding that B. spiciformis forms annual rings can be used in ageing the trees, projecting future yields more accurately, as well as monitoring the effects of management on growth. In the investigation of the effects of climatic and edaphic conditions on tree growth, soil depth was found to have the greatest influence, followed by mean annual rainfall and clay content. Dominant height was found to be the best morphological variable to estimate site potential, in the absence of detailed studies of soil characteristics. The experimental findings from silvicultural trials have important implications for management. Regrowth from coppice stools was vigorous even in dry years, and greatest from medium to large stools. Productivity in general was extremely variable, both of coppiced and uncoppiced trees, due to site effects. The most productive sites are also potentially the best for agriculture and are therefore unlikely to be left exclusively for woodland management. The silvicultural techniques of coppice reduction and water harvesting were not found to enhance coppice regrowth. Browsing by livestock was found to severely reduce coppice regrowth, particularly of J. globiflora, at least in the initial stages, so that protection from browsing in the first year or two after felling is recommended if maximum regrowth is desired. An assessment of the use and management of the indigenous wood resources in a resettlement area in central Zimbabwe suggests that the present harvesting of wood products is unsustainable, due largely to the lack of any woodland management policy for these areas. Local villagers feel powerless to exclude outsiders from their resource, and thus the incentives to manage it sustainably are low. Major changes in government legislation are necessary to alter this situation. In the interim, resource-sharing schemes are suggested as a method of improving the sustainability of use. Some of the results reported here have a direct application in miombo management; these are summarised at the end of this work in the form of guidelines for management. Others identify the need for further work to expand these initial findings. One of the outcomes of this research has been the reminder of how little is known of the appropriate management of this important vegetation type.
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Rocha, Dulce Maria Sucena da. "Aspectos taxonomicos, geneticos e reprodutivos de Pterodon pubescens (Benth.) Benth. e P. emarginatus Vog. (Leguminosae, Dipteryxeae)." [s.n.], 2006. http://repositorio.unicamp.br/jspui/handle/REPOSIP/315489.
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Orientador: Paulo Yoshio KageyamaTese (doutorado) - Universidade Estadual de Campinas, Instituto de Biologia
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Resumo: Este trabalho utilizou marcadores moleculares do tipo RAPD e caracteres morfológicos para estudar a variação encontrada dentro de P. emargiantus sensu Lewis (Fabaceae, Papilionoideae, Dipteryxeae). O objetivo foi verificar se o dimorfismo observado dentro deste taxon pode ser interpretado como variação dentro de uma mesma espécie ou se é indicativo de que P. emarginatus sensu Lewis engloba mais de uma entidade taxonômica, e neste caso, qual a relação entre cada uma dessas entidades bem como qual a melhor forma de nomeá-las. Lewis em uma publicação sobre Legumes da Bahia, considerou P. pubescens (Benth.) Benth. e P. polygalaeflorus (Benth.) Benth. Como sinônimos de P. emarginatus Vog. e, desde então, vêm sendo consideradas como tais em vários bancos de dados botânicos. Entretanto, P.emarginatus, como proposto por Lewis, é uma espécie dimórfica com indivíduos de flores róseas, folhas pubescentes e com folíolos de ápice levemente retuso e indivíduos de flores roxas, folhas glabras e com folíolos de ápice fortemente emarginado. Não foram encontradas populações mistas contendo indivíduos das duas morfos (rósea e roxa) de P. emarginatus sensu Lewis. Os resultados obtidos, tanto para dados moleculares como para os morfológicos são concordantes e separam as duas formas (rósea e roxa) de P.emarginatus sensu Lewis. A análise molecular mostrou que 74% da variância encontrada é explicada pela diferença entre as formas rósea e roxa. A análise canônica discriminante empregada para analisar as diferenças entre as formas baseado em dados morfológicos, permite separar as duas formas (r=0,963 p<0,0001). As análises anteriores, juntamente com os fototipos dos três taxa, permitiram concluir que P. polygalaeflorus é sinônimo de P. emarginatus Vog. e P.pubescens deve ser mantida como espécie distinta
Abstract: RAPD markers and morphological characters were employed in order to study the variation observed in Pterodon emarginatus sensu Lewis (Fabaceae, Papilionoideae, Dipteryxeae). The objective was to verify if the dimorphism observed in this taxon could be interpreted as variation within a species or if it indicates that P. emarginatus sensu Lewis contains more than one taxonomical entity and in this case, what is the relationship of them and how would be the best way to denominate them. In a publication about the legume species of Bahia (Brazil), Lewis has considered both P. pubescens (Benth.) Benth. and P. polygalaeflorus (Benth.) Benth. as synonyms of P. emarginatus Vog.. Since then, these two species have been treated as synonyms of P. emarginatus in many botanical databanks. However, P.emarginatus as proposed by Lewis, is a dimorphic species presenting individuals with pink flowers, pubescent leaves, and retuse folioles apex as well as plants with purple (violet) flowers, glabrous leaves and strong emarginate folioles apex. There is no mixed population of the two morphs (pink and violet) of P.emarginatus sensu Lewis in the field. The results of the AMOVA for RAPD markers showed that 74% of the observed variance was due to the difference between morphs pink and violet. The canonical discriminant analysis for morphological data agrees with molecular data showing a good separation of the two morphs (r= 0,963 p<0,0001). Those analyses together with the phototypes for the three taxa under study indicate that P.polygalaeflorus is a synonym of P.emarginatus and P.pubescens should be maintained as a separate species
Doutorado
Biologia Vegetal
Doutor em Biologia Vegetal
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Stuparu, Mihaiela Corina. "Fully conjugated belts : an illusory dream? /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17345.
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Morden, Anne Askew. "Between the heart-beats of being." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq24606.pdf.
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Carducci, Ernest P. "Study of multimode integrated optical bends." Connect to resource, 2007. http://hdl.handle.net/1811/24513.
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Thesis (Honors)--Ohio State University, 2007.Title from first page of PDF file. Document formatted into pages: contains vi, 51 p.; also includes graphics. Includes bibliographical references (p. 49-51). Available online via Ohio State University's Knowledge Bank.
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Hughes, Colin E. "Systematics of Leucaena Benth. (Leguminosae: Mimosoideae)." Thesis, University of Oxford, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244478.
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Crawford, N. M. "Pressure losses at bends and junctions." Thesis, Queen's University Belfast, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.426798.
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Gonçalves, Bela Cândida de Azevedo Pereira, and Maria de Fátima Marinho. "Regionalismo/universalismo em Bento da Cruz." Dissertação, Porto : [Edição do Autor], 2009. http://aleph.letras.up.pt/F?func=find-b&find_code=SYS&request=000196614.
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Ramsey, Lucy Ann. "Topographic evolution of emerging mountain belts." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614292.
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Gonçalves, Bela Cândida de Azevedo Pereira, and Maria de Fátima Marinho. "Regionalismo/universalismo em Bento da Cruz." Master's thesis, Porto : [Edição do Autor], 2009. http://hdl.handle.net/10216/20353.
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Ruiz, Ana Lucia Tasca Gois 1972. "Estudo fitoquimico de Poecilanthe parviflora Benth. e Lonchocarpus atropurpureus Benth. (Leguminosae) isolamento, determinação estrutural e atividade biologica." [s.n.], 1998. http://repositorio.unicamp.br/jspui/handle/REPOSIP/250177.
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Orientador: Eva Gonçalves MagalhãesDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Quimica
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Mestrado
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Zaia, Herika Aparecida Bequis de Araujo. "Desenvolvimento floral de Caesalpinia echinata LAM, Caesalpinia peltophoroides Benth e Caesalpinia férrea Var. leyotachia Benth. (Fabaceae/Caesalpinioideae)." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/11/11150/tde-14102004-135338/.
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O estudo da ontogênese floral é essencial para uma melhor compreensão dos processos evolutivos envolvidos no desenvolvimento dos órgãos reprodutivos dos vegetais. Este trabalho teve por objetivo analisar a ontogênese floral das espécies C. echinata, C. peltophoroides e C. ferrea, da família Fabaceae/ Caesalpinioideae Foram realizados estudos morfo-anatômicos com o emprego de técnicas de microscopia eletrônica de varredura e microscopia óptica. Os resultados obtidos permitiram determinar que a ontogênese floral das três espécies são similares: o meristema da inflorescência é indeterminado e inicia a formação de brácteas acropetalarmente. Cada bráctea protege um único meristema floral. O primórdio da sépala abaxial é o primeiro a ser formado pelo meristema floral, seguido dos primórdios das sépalas laterais e adaxiais, de forma unidirecional. Os primórdios das pétalas e dos estames epissépalos e epipétalos são iniciados a seguir. A formação do carpelo inicia-se com a formação de uma protuberância no centro do meristema floral e quando o primórdio do carpelo atinge cerca de 100 µm de altura, o mesmo inicia uma invaginação em seu lado adaxial formando uma fenda cuja superfície interna originará a placenta. Nos estágios que precedem a antese, há a diferenciação de células papilares no estigma. Os resultados obtidos neste trabalho de descrição da ontogênese floral em Caesalpinia poderão servir de fundamentação para futuros estudos dos aspectos moleculares do desenvolvimento reprodutivo em leguminosas.The study of the floral ontogeny is essential for the understanding the evolutionary processes involved in the development of the floral organs. The aim of this work was to analyse the floral ontogeny the species C. echinata, C. peltophoroides and C. ferrea, from the family Fabaceae/ Caesalpinioideae. Scanning electron microscopy and light microscopy techniques were used. The observed results indicated that the ontogeny events of the tree species were similar: the inflorescence apical meristem is indeterminate and initiates bracts in an acropetal order. Each bract protects a single floral meristem. The first floral organ formed is the abaxial sepal and it is followed by the lateral and adaxial sepal primordia in a unidirecional order. The whorls of petal and antepetalous and antesepalous stamen primordial are the next to begin. The carpel primordium arise as a mound in the center of the floral meristem. When the carpel primordium is about 100µm high, a cleft is formed in its adaxial side, on the site where the placenta will be formed. At anthesis, the stigma differentiates papilate cells. The results obtained with this descriptive work will serve as a foundation for future studies of the molecular aspects of reproductive development of legumes.
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Chapman, Genesis. "Bottom Creek, Bent Mountain, VA." VCU Scholars Compass, 2010. http://scholarscompass.vcu.edu/etd/2163.
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The title of this thesis Bottom Creek, Bent Mountain, VA is the subject of my large ink drawings. Starting with the spring outside my window, this book describes the creeks as it flows across the mountain that I grew up on. My drawings document the experience of walking along the banks of Bottom Creek as it flows past farms fields and along the roadside. Described as a seemingly insignificant place, the creek is in fact it is one of the most basic, and important parts of this mountain’s landscape, because the creek’s natural process it is responsible for producing the landscape as we see it. Through drawing the water from direct observation, I find a deeper connection to the land and respect for its ever changing processes.
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Romano, Patrícia Aparecida Beraldo. "Dona Benta: mediadora de leitura em Dom Quixote das Crianças e Geografia de Dona Benta, de Monteiro Lobato." Universidade Presbiteriana Mackenzie, 2017. http://tede.mackenzie.br/jspui/handle/tede/3185.
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
This thesis presentes a study about the character Dona Benta as a Reading mediator in Dom Quixote das Crianças and in Geografia de Dona Benta. At the first one it seems to be there a reading project thought by Monteiro Lobato and executed by the character of the grandmother; at the second, she is responsible for mediating the knowledge through the resource of a trip. To execute this work it was necessary an investigation about how the action of the grandmother mediator happens in all Lobato’s books for children in order to distinguish her actions in these two texts and from this investigation it was concluded it happens in two ways: Dona Benta-grandmother-mediator “familiar” with reading, and Dona Benta grandmother-teacher-mediator who “institutionalizes” the knowledgement. At this work we also tried to understand how the ilustrations of her character, designed by a variety of ilustrators in many different editions, show an evolution in her moments of reading mediation. In addittion, we also tried to understand how it might have contributed to reinforce this aspect in young readers. Finally, it was still possible to discuss in this thesis how Dona Benta can be an efficient example of Reading mediator in new media and technologies even nowadays.
Esta tese apresenta um estudo sobre a personagem Dona Benta como mediadora de leitura em Dom Quixote das Crianças e em Geografia de Dona Benta. Na primeira obra parece haver um projeto de leitura pensado por parte de Monteiro Lobato e executado pela personagem-avó; na segunda, ela é a responsável por mediar o conhecimento a partir do recurso da viagem. Para executar tal tarefa foi necessária uma investigação de como se realiza a ação mediadora da avó em todas as obras infantis de Lobato para distinguir sua atuação nestas duas obras e chegou-se ao resultado de que ela ocorre sob duas formas a saber: Dona Benta-avó-mediadora “familiar” de leitura, e Dona Benta avó-professora-mediadora “institucional” do conhecimento. Procurou-se, também, entender como as imagens dela, executadas pelos mais diversos ilustradores, ao longo das muitas edições, apontam para uma evolução na construção dessa personagem e como algumas dessas imagens, em momentos de mediação de leitura, podem ter contribuído para firmar essa marca-característica nos pequenos leitores. Finalmente, ainda foi possível discutir na tese como Dona Benta pode ser, nos dias atuais, exemplo eficaz de mediadora de leitura, mesmo em tempos de novas mídias e novas tecnologias.
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Tkaczyk, Piotr. "CFD simulation of annular flows through bends." Thesis, University of Nottingham, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.556100.
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There is particular interest in the oil industry, in gas/liquid distribution in pipe line systems. The presence of bends has a significant effect on gas/liquid flows. Bends are often necessary to fit the equipment into limited spaces e.g. in plants or on oil rig platforms. As part of designing industrial systems, it is therefore important to be able to understand how liquid and gas move around bends. The aim of this research is to develop a method for predicting gas/liquid annular flows. A 3D CFD-based method is therefore developed to solve for annular flows in pipes and is applied to a range of pipe bends. In the presented study, the two-phases are gas and liquid. Multiphase fields can be handled as a continuum gas field, continuum liquid filed and as liquid droplets of varied diameters. The liquid travels along the walls as a film and in the gas core in the form of droplets. The presented approach accounts for the dynamics of the droplets flow in the gas core and their interaction between them. The liquid film is solved explicitly by means of a modified Volume of Fluid (VOF) method. The droplets are traced using a Lagrangian technique. The film to droplets (entrainment) and droplets to film (splashing, spread, bounce and stick) interactions are taken into account using sub- models to complement the VOF model. In free surface flows, a high velocity gradient at the gas/liquid interface results in high turbulence generation. In order to improve the momentum transfer between the phases at the interface, a correction to VOF is also implemented based on the work of Egorov [1]. A detailed comparison between the model and experimental data for vertical, Wolf et al. [2], and horizontal annular flows, Butterworth and Pulling [3], show reasonable agreement. The model is then applied to annular flow in bends, Maddock et al. [4], Anderson and Hills [5], Sakamoto et al. [6]. The comparison between the model and experimental data found in the literature show a good agreement. The model is also successfully applied to medium size (127mm) pipe configurations run at Nottingham University as part of a parent project. The model is finally applied to large pipe diameters encountered in industrial oil/gas applications to investigate scale issues and the model potential in industry.
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Rainbird, Peter Charles Bruce. "Depth averaged numerical modelling in channel bends." Thesis, University of East Anglia, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.317973.
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Yu, Dongqing. "Mechanical performance of automotive V-ribbed belts." Thesis, University of Leeds, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.442747.
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Legono, D. "Behaviour of flow in open channel bends." Thesis, City University London, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375820.
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Gao, Xiang. "Hydrodynamics of HCP with slopes and bends /." free to MU campus, to others for purchase, 1999. http://wwwlib.umi.com/cr/mo/fullcit?p9962524.
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Rupeka, Laura M. "Like Eve, Wanting Beets Instead of Apples." Connect to online version at OhioLINK ETD Connect to online version at Digital.Maag, 1999. http://hdl.handle.net/1989/4793.
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de, Sá Ribeiro Albina Maria. "Studies of gas-liquid flow in bends." Thesis, University of Birmingham, 1994. http://etheses.bham.ac.uk//id/eprint/5069/.
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The present investigation is concerned primarily with air-water flow in a horizontal 0.032 m ID tube, and the influence of a 90° horizontal bend on the flow characteristics. Visualisation studies using high speed still photography and cine film, and entrainment and drop size measurements were conducted before and after the bend. Entrained mass fluxes were determined from film flow measurements carried out using the film removal technique, while the drop size distributions were measured with a laser diffraction technique. During these measurements the pressure in the test section was held between 1.0-1.4 bar, and at ambient temperature. Prior to the horizontal flow study, drop size and film flow rates were measured for vertical air-water flow in a 0.01026 m ID tube. This extended the work of Jepson (1992) who reported the effect of gas density and surface tension on film flow rate, drop size and deposition mass transfer coefficient. Modifications to the equipment described by Jepson (1992) allowed an extension of the measurements to higher flow conditions. The visualisation study was taken across flow conditions that include stratified, annular and pseudo-slug flow regimes. Still photographs show the presence of air bubbles entrained in the liquid film, and the creation of liquid drops at the crest of roll waves. Drops were seen to be entrained from the liquid film by both bag break-up and ligament break-up mechanisms. At the bend, the phenomenon of film inversion was seen to occur. Also, a secondary flow existing in the gas phase at the bend can be responsible for a swirl movement observed in the liquid film, in which at the upper part of the tube the liquid was pulled from the outer wall of the bend to the top of the tube in an anti-clockwise, cork screwing fashion. In the lower half, the liquid film was drawn from the outer wall towards the bottom of the tube in a clockwise motion. From the cine films, information on drop velocity was also extracted. This showed the axial drop velocity to be constant over the time frame of analysis. No significant correlation was found between the drop size and the axial drop velocity. The entrainment results in the horizontal tube showed that for stratified/annular conditions the entrained liquid mass flux increases with liquid flow rate (for a fixed gas flow rate), and in some instances plateau conditions were reached. However, for the pseudo-slug regime the level of entrainment falls considerably. For the whole range of flow conditions studied, the entrained liquid mass flux increases with superficial gas velocity, except for GL = 10 kg/m 2 s where the amount of entrainment is constant. The reduction in entrained liquid mass flux after the bend above certain flow conditions, is caused by drops depositing on the outside wall of the bend. For the flow conditions under study, the Sauter mean diameter varies between 60-110 um. Gas velocity has a strong influence on drop size, ie, the higher the gas velocity the smaller the drop size. The effect of liquid flow rate is somewhat more complex. At the lower liquid flow rates, drop size seems to be controlled by the entrainment mechanisms, while at the higher liquid flows drop coalescence has a dominant effect. The influence of the 90° bend on the drop size distribution was to increase the diameter of the drops. Both the entrained liquid mass flux and drop size were found to be lower for horizontal annular flow than in vertical flow, for the same flow conditions and tube diameter. The measurements carried out for air-water flow in the vertical 0.01026 m ID tube, showed the entrained mass flux to increase with both gas and liquid flow rates. For the flow conditions analysed, the Sauter mean diameter varies between 26-45 um. Drop size was seen to be influenced by gas and liquid flow rates, following similar trends to those observed during the horizontal study.
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Souza, Abraão Alexandre de, and 92-99410-6952. "Princípios Antimaláricos de Croton cajucara Benth. (Euphorbiaceae)." Universidade Federal do Amazonas, 2016. http://tede.ufam.edu.br/handle/tede/6143.
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FAPEAM - Fundação de Amparo à Pesquisa do Estado do Amazonas
Malaria is one of the most important endemic diseases in tropical regions whose treatment is based on substances discovered from plants traditionally used in folk medicine. Thus, faced with the resistance of the parasite (Plasmodium spp.), The search for new drugs has become fundamental. Among the bioactive substances of plant species, terpenoids have a range of biological activities, among which antimalarial. Therefore, the objective of this research was the isolation of substances with antimalarial potential. The species that are indicated as antimalarial and that was used in the present study is easily found and is also cultivated in the State of Amazonas in EMBRAPA and INPA: 'sacaca' (Croton cajucara Benth). Croton cashews and leaves of Benth (Euphorbiaceae) were submitted for the preparation of bioactive extracts, with relevance in the antimalarial activity. In the in vitro bioassay of the P. falciparum K1 strain, IC50 = 6.4 ± 1.2 μg / mL, followed by the ethanolic extract of the bark, with IC 50 = 17.2 ± 6.6. The extracts were investigated by means of a traditional phytochemical approach, based on the open column chromatographic fractionation, resulting in the isolation of seven substances. Natural substance 1 was acetylated in a reaction of acetic anhydride (Ac 2 O) and pyridine (C 5 H 5 N), resulting in compound 2. These eight compounds were identified primarily by 1 H and 13 C 1 D and 2 D and CL-EMAR NMR analyzes. The results showed that only three compounds had inhibition above 50% (1, 2 and 6), but the compound (1) and (2) 6) showed better activity by inhibiting more than 80% of in vitro growth of P. falciparum strain K1: 70.5-68.0 (1); 63.9-55.6 (2); 57.6-0 (3); 41.8-37.2 (4); 18.6-23.2 (5); 92.7-75.6 (6); 34.9-23.2 (7) and 37.2-11.6 (8). 1 and 6 had their IC50 calculated, where they presented moderate in vitro activity against P. falciparum strain, with IC 50 = 23.7 and 23.0 μg / mL, respectively. Compound 1 was the only one to be tested in vivo, however it did not show activity against P. berghei, orally and subcutaneously during the seven day treatment period.
A malária é uma das doenças endêmicas mais relevantes nas regiões tropicais cujo o tratamento está baseado em substâncias descobertas a partir de plantas utilizadas tradicionalmente na medicina popular. Assim, diante da resistência do parasita (Plasmodium spp.), a busca por novas drogas se tornou fundamental. Entre as substâncias bioativas de espécies vegetais, os terpenóides apresentam-se com uma gama de atividades biológicas, dentre as quais se destacam a antimalárica. Diante disso, esta pesquisa teve por objetivo o isolamento de substâncias com potencial antimalárico. A espécie que têm indicação como antimalárica e que foi utilizada no presente estudo é facilmente encontrada e além disso é cultivada no Estado do Amazonas na EMBRAPA e INPA: ‘sacaca’ (Croton cajucara Benth). As cascas e folhas de ‘sacaca’ Croton cajucara Benth (Euphorbiaceae) foram submetidos para preparo de extratos bioativos, com relevancia na atividade antimalárica. Onde se observou boa atividade do extrato clorofórmico das folhas no bioensaio in vitro frente a cepa K1 de P. Falciparum, com CI50 = 6,4 ± 1,2 µg/mL, seguida do extrato etanólico das cascas, com CI50 = 17,2 ± 6,6. Os extratos foram investigados por meio de uma abordagem fitoquimica tradicional, baseada no fracionamento cromatografico em coluna aberta, resultando no isolamento de sete substâncias. A substancia natural 1 foi acetilado numa reação de anidrido acetico (Ac2O) e piridina (C5H5N), resultando no composto 2. Estes oito compostos foram identificados principalmente por meio de análises de RMN 1H e 13C 1D e 2D e CL-EMAR. Em seguida as oito substâncias passaram por screening para avaliar suas atividade antiplasmódica em duas concentrações (50 e 5 µg/mL): Os resultados revelam que apenas três compostos apresentaram inibição acima de 50% (1, 2 e 6), mas o composto (6) apresentou melhor atividade ao inibir mais de 80% do crescimento in vitro da cepa K1 de P. Falciparum: 70,5-68,0 (1); 63,9-55,6 (2); 57,6-0 (3); 41,8-37,2 (4); 18,6-23,2 (5); 92,7-75,6 (6); 34,9-23,2 (7) e 37,2-11,6 (8). O 1 e 6 tiveram suas CI50 calculadas, onde apresentaram atividades moderadas in vitro contra cepa de P. Falciparum, com CI50= 23,7 e 23,0 µg/mL, respectivamente. O composto 1 foi o unico a ser testado in vivo, no entanto não apresentou atividade frente ao P. berghei, por via oral e subcutânea durante o período de sete dias de tratamento
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Bezerra, Josà Noberto Sousa. "Estudo FitoquÃmico de Licania rÃgida Benth (Chrysobalanaceae)." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=6838.
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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgicoEste trabalho descreve o estudo fitoquÃmico de Licania rigida (Chrysobalanaceae), conhecida popularmente por oiticica. Neste estudo foram utilizadas as cascas e lenho das raÃzes, o lenho do caule, folhas e flores. Os extratos obtidos foram submetidos à partiÃÃo lÃquido-lÃquido, cromatografias convencionais (adsorÃÃo e exclusÃo) e modernas Cromatografia LÃquida de Alta eficiÃncia (CLAE). A investigaÃÃo quÃmica da raiz de L. rigida resultou no isolamento dos compostos: esqualeno (LR-01), lupeol (LR-02), Ãcido betulÃnico (LR-03), niruriflavona (LR-11) e a mistura binÃria dos esterÃides, β-sitosterol e estigmasterol glicosilados (LR-06). Do caule resultou no isolamento do Ãcido licÃnico (LR-09), enquanto das folhas isolou-se o α-tocoferol (LR-07), a mistura binÃria do α-tocoferol e α-tocotrienol (LR-08), a mistura binÃria dos esterÃides β-sitosterol e estigmasterol (LR-05), os flavonÃides: afzelina (LR-12), miricetina-3-raminosÃdeo (LR-15) e o miricetina-3-glicosÃdeo (LR-16). Das flores foram isolados os compostos: canferol (LR-10), tilirosÃdeo (LR-13), licanolina (LR-14) e o diterpeno 1β,16α,17-trihidroxi-ent-caurano (LR-04). Esta investigaÃÃo quÃmica resultou no isolamento de substÃncias inÃditas para a literatura, bem como para a espÃcie e o gÃnero. A determinaÃÃo estrutural dos compostos isolados foi obtida pela anÃlise dos espectros de ressonÃncia magnÃtica nuclear de hidrogÃnio-1 e carbono-13 uni e bidimensionais, espectros de massa obtidos por Impacto EletrÃnico (EM-IE) e IonizaÃÃo por electronSpray (EM-ESI) e os espectros de infravermelho (IV), bem como atravÃs da comparaÃÃo com os dados da literatura.
This work describes the phytochemical study of Licania rigida (Chrysobalanaceae), popularly known as oiticica. In this study we used the bark and wood of roots, woody stem, leaves and flowers. The extracts were subjected to liquid-liquid partition chromatography, conventional (adsorption and exclusion) and modern, high performance liquid chromatography (HPLC). The chemical investigation of the root of L. rigida resulted in the isolation of compounds: squalene (LR-01), lupeol (LR-02), betulinic acid (LR-03), niruriflavone (LR-11) and the binary mixture of steroids, β-sitosterol and stigmasterol glycoside (LR-06). From stem was isolated the acid licanic (LR-09), while from leaves were isolated the following metabolites: α-tocopherol (LR-07), the binary mixture of α-tocopherol and α-tocotrienol (LR-08), the mixture binary steroid β-sitosterol and stigmasterol (LR-05) and the flavonoids afzelin (LR- 12), myricetin-3-ramnoside (LR-15) and myricetin-3-glucoside (LR-16). From flowers were isolated the followed compounds: kaempferol (LR-10), tiliroside (LR-13), licanolin (LR-14) and the diterpene 1β,16α,17-trihydroxy-ent-kaurane (LR-04). This chemical investigation resulted in the isolation of novel substances for literature, the species and Licania genus. Structure determination of isolated compounds was obtained by analysis of nuclear magnetic resonance spectra of a hydrogen-1 and carbon-13 one and two dimensional, mass spectra obtained by electron impact (MS-IE) and electronSpray ionization (ESI-MS) and Infrared spectra (IR) and by comparison with literature data.
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Kunz, Vanessa Teixeira. "Glechon spathulata BENTH.: ESTUDO FITOQUÍMICO E BIOLÓGICO." Universidade Federal de Santa Maria, 2007. http://repositorio.ufsm.br/handle/1/5887.
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Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorThe main groups of secondary metabolites of Glechon spathulata Benth. were evaluated by a phytochemical screening and the volatile oil obtained by hydrodistillation was analyzed by GC-MS. Volatile oil, ethanolic crude extract and hexanic, chloroformic, ethyl acetate and butanolic fractions of G. spathulata were submitted to the lethality test against Artemia salina Leach., to the antimicrobial activity by bioauthographic assay and broth microdilution. Antioxidant activity by DPPH in thin-layer chromatography (TLC) and spectrophotometric assay were also evaluated. Flavonoids, tannins, sterols and/or triterpenoids, saponins, anthocyanic pigments, volatile and fixed acids were found in G. spathulata. The GC of the oil revealed the presence of 9 constituents. All samples presented Artemia salina toxicity (LC50<1000 μg/ml). The volatile oil showed antimicrobial activity evaluated by bioauthographic assay against Gram-positive and Gram-negative bacteria and against Candida albicans, the crude extract didn t show activity against the tested microorganisms in same conditions of assay with volatile oil. Volatile oil, hexanic and ethyl acetate fractions showed good inhibitory activity against Gram-positive and Gram-negative bacterial cultures. Through DPPH method all the samples showed antioxidant activity by TLC, by spectrophotometric method, ethyl acetate, butanolic fractions and volatile oil showed excellent antioxidant activity with IC50 7,99 μg/ml; 11,75 μg/ml and 20,59 μg/ml respectively.
Os principais grupos de substâncias de Glechon spathulata Benth. foram avaliados por uma análise fitoquímica e o óleo volátil obtido por hidrodestilação foi analisado por CG-EM. O óleo volátil, o extrato bruto etanólico e as frações hexânica, clorofórmica, acetato de etila e butanólica de G. spathulata foram submetidos ao teste de letalidade frente a Artemia salina Leach., à atividade antimicrobiana por bioautografia e microdiluição em caldo. A atividade antioxidante pelo DPPH em cromatografia em camada delgada (CCD) e pelo ensaio espectrofotométrico também foi avaliada. Flavonóides, taninos, esteróis e/ou triterpenos, saponinas, pigmentos antociânicos, ácidos voláteis e fixos foram encontrados em G. spathulata. A CG do óleo revelou a presença de 9 constituintes. Todas as amostras apresentaram toxicidade frente à Artemia salina (CL50<1000 μg/ml). O óleo volátil apresentou atividade antimicrobiana avaliada por bioautografia contra bactérias Gram-positivas e Gram-negativas e contra Candida albicans, o extrato bruto não apresentou atividade contra os microrganismos testados nas mesmas condições do ensaio com o óleo volátil. O óleo volátil, as frações hexânica e acetato de etila mostraram boa atividade inibitória contra bactérias Gram-positivas e Gram-negativas. Através do método do DPPH, todas as amostras mostraram atividade antioxidante por CCD e pelo método espectrofotométrico, as frações acetato de etila, butanólica e o óleo volátil demonstraram excelente atividade antioxidante com CI50 de 7,99 μg/ml; 11,75 μg/ml e 20,59 μg/ml respectivamente.
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Nenevê, Marcelo Leandro. "Saúde bucal em São Bento do Sul." Florianópolis, 2012. http://repositorio.ufsc.br/xmlui/handle/123456789/96374.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de de Ciências da Saúde. Programa de Pós-Graduação em Saúde ColetivaMade available in DSpace on 2012-10-26T11:24:30Z (GMT). No. of bitstreams: 1 310445.pdf: 725870 bytes, checksum: d87f42e362414c4549459f978aefefaa (MD5)
Objetivos: Avaliar se levantamentos epidemiológicos de cárie influenciam a programação e as políticas públicas de saúde bucal dos municípios. Metodologia: estudo de caso, com adoção de entrevistas, pesquisa documental e pesquisa avaliativa, para análise do período 1997-2010. Foi construída matriz de avaliação, baseada no modelo de Weiss para uso dos resultados de pesquisa, com duas dimensões - programação e políticas de saúde - e nove indicadores. Entrevistas semiestruturadas com os coordenadores de saúde bucal do período e pesquisa documental em material oficial produzido no período foram conduzidas e feita triangulação de métodos. Resultados: seis indicadores foram considerados satisfatórios, dos quais quatro apresentaram evolução - Modelo de trabalho, Saúde do Trabalhador, Oferta de Especialidades e Agendamento; dois se mantiveram - Acesso ao flúor e Sistema de prevenção. Três indicadores foram insatisfatórios - Primeira consulta, Cobertura e Modelo de atenção. Há evidências que mudanças no modelo de atenção provocaram retrocesso nos indicadores, ao buscar a integralidade e oferta de atividades não curativas. Conclusões: A avaliação realizada mostrou que os levantamentos influenciaram a programação e as políticas públicas de saúde bucal do município. A partir de recomendações oriundas dos levantamentos, medidas adotadas mostram a capacidade da gestão do município em melhorar a atenção à saúde bucal.
In this work we aim at investigating whether epidemiological surveys on caries influence the municipalities relating to oral health planning and policies. For this purpose the methodology we used is a case study, adopting interviews, archival research and evaluative research considering the period from 1997 to 2010. I built an evaluation matrix based on Weiss model for the use of research results, with two dimensions - health policy and programming - and nine indicators. We conducted semi-structured interviews with coordinators of oral health for the mentioned period as well as documentary research in official material. Afterwards we made the triangulation of methods. The results suggested that six indicators were considered satisfactory from those, four presented evolution # Work Model, Occupational Health, specialties and Scheduling Offer; two remained the same : access to fluoride and prevention system. Three indicators were unsatisfactory - Initial consultation, Cover and attention model. There is evidence that the changes in the model of care led a backward movement in the indicators when searching for the wholeness and offer of non curative activities. The conclusion we draw is that the surveys influenced the municipality in the programming and policies of oral health. The recommendations resulting from the surveys, influenced measures taken by the municipality and reveal the ability of its management to improve the oral health care.
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Benthien, Muriélle Silveira Boeira. "Poloneses da Colônia São Bento (1870-1930)." Florianópolis, SC, 2005. http://repositorio.ufsc.br/handle/123456789/102420.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas. Programa de Pós-Graduação em HistóriaMade available in DSpace on 2013-07-16T00:54:40Z (GMT). No. of bitstreams: 1 223890.pdf: 14812179 bytes, checksum: 765a4817a276cbe1cf782721da71ac86 (MD5)
A dissertação apresenta um estudo realizado sobre a Colônia São Bento, no período que abrange desde sua fundação em 1873, a meados da década de 1930. A pesquisa foi efetivada principalmente através de fontes paroquiais. Localizado no norte catarinense, o atual município de São Bento do SUL/SC tinha sido criado no século XIX como uma colônia de extensão da sede Dona Francisca. Quando iniciou-se a medição das terras em São Bento, já havia na localidade algumas famílias de brasileiros estabelecidas com carta de posse cedida pelo governo do Paraná. Além deles, São Bento foi ocupada por imigrantes teuto-poloneses e boêmios em sua maioria, todos católicos. A convivência deu-se portanto entre três grupos principais: indígenas (já em minoria), brasileiros (chamados de "caboclos") e europeus recém-chegados no núcleo. As póvoas polonesas foram constituídas pela abertura de novas linhas, como Rio Vermelho Povoado e Rio Natal. Além dos dados paroquiais e oficiais, a análise foi possível através de entrevistas (História Oral) com descendentes, bem como da utilização de materiais disponibilizados de acervos particulares. Essa torna-se uma relevante contribuição aos estudos imigratórios em Santa Catarina, porque há uma escassa produção bibliográfica que envolvem grupos de poloneses e descendentes. This dissertation presents a study made on São Bento Colony, from the period from its foundation in 1873, through middle of 1930's decade. The research was carried out mainly over parish sources. Located on North Santa Catarina, the present district of São Bento do Sul had been created in the XIX Century as an extension Colony of Dona Francisca headquarter. Whe the land measurement began in São Bento, there was already on the premises a few Brazilian families established with the property rights letter granted by the Government of Paraná. Beside them, São Bento had been occupied mostly by Teuto-Polonaise and bohemians, all Catholics. The cohabitation of these families came to be between three major groups: Indians (already as a minority group), Brazilians (called as "caboclos" - mixed blood), and Europeans recently arrived at the core. The Polonaise community was constituted by the opening of new lines, like the Rio Vermelho village and Rio Natal. Beside the parish's data and official records, the analysis came possible through interviews (Oral History) with descendants, as the proper use the materials available in private collections. Therefore, this becomes a relevant contribution in immigration studies in Santa Catarina, over the small bibliographic production envolving Polonaise groups and its descendants.
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Bezerra, José Noberto Sousa. "Estudo Fitoquímico de Licania rígida Benth (Chrysobalanaceae)." reponame:Repositório Institucional da UFC, 2011. http://www.repositorio.ufc.br/handle/riufc/14694.
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BEZERRA, J. N. S. Estudo Fitoquímico de Licania rígida Benth (Chrysobalanaceae). 2011. 157 f. Tese (Doutorado em Química) - Centro de Ciências, Universidade Federal do Ceará, Fortaleza, 2011.Submitted by Daniel Eduardo Alencar da Silva (dealencar.silva@gmail.com) on 2014-11-17T19:37:27Z No. of bitstreams: 1 2011_tese_jnsbezerra.pdf: 13183066 bytes, checksum: 684299f75878718b77bee3d5b08f16af (MD5)
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Made available in DSpace on 2016-01-06T23:31:23Z (GMT). No. of bitstreams: 1 2011_tese_jnsbezerra.pdf: 13183066 bytes, checksum: 684299f75878718b77bee3d5b08f16af (MD5) Previous issue date: 2011
This work describes the phytochemical study of Licania rigida (Chrysobalanaceae), popularly known as oiticica. In this study we used the bark and wood of roots, woody stem, leaves and flowers. The extracts were subjected to liquid-liquid partition chromatography, conventional (adsorption and exclusion) and modern, high performance liquid chromatography (HPLC). The chemical investigation of the root of L. rigida resulted in the isolation of compounds: squalene (LR-01), lupeol (LR-02), betulinic acid (LR-03), niruriflavone (LR-11) and the binary mixture of steroids, β-sitosterol and stigmasterol glycoside (LR-06). From stem was isolated the acid licanic (LR-09), while from leaves were isolated the following metabolites: α-tocopherol (LR-07), the binary mixture of α-tocopherol and α-tocotrienol (LR-08), the mixture binary steroid β-sitosterol and stigmasterol (LR-05) and the flavonoids afzelin (LR- 12), myricetin-3-ramnoside (LR-15) and myricetin-3-glucoside (LR-16). From flowers were isolated the followed compounds: kaempferol (LR-10), tiliroside (LR-13), licanolin (LR-14) and the diterpene 1β,16α,17-trihydroxy-ent-kaurane (LR-04). This chemical investigation resulted in the isolation of novel substances for literature, the species and Licania genus. Structure determination of isolated compounds was obtained by analysis of nuclear magnetic resonance spectra of a hydrogen-1 and carbon-13 one and two dimensional, mass spectra obtained by electron impact (MS-IE) and electronSpray ionization (ESI-MS) and Infrared spectra (IR) and by comparison with literature data.
Este trabalho descreve o estudo fitoquímico de Licania rigida (Chrysobalanaceae), conhecida popularmente por oiticica. Neste estudo foram utilizadas as cascas e lenho das raízes, o lenho do caule, folhas e flores. Os extratos obtidos foram submetidos à partição líquido-líquido, cromatografias convencionais (adsorção e exclusão) e modernas Cromatografia Líquida de Alta eficiência (CLAE). A investigação química da raiz de L. rigida resultou no isolamento dos compostos: esqualeno (LR-01), lupeol (LR-02), ácido betulínico (LR-03), niruriflavona (LR-11) e a mistura binária dos esteróides, β-sitosterol e estigmasterol glicosilados (LR-06). Do caule resultou no isolamento do ácido licânico (LR-09), enquanto das folhas isolou-se o α-tocoferol (LR-07), a mistura binária do α-tocoferol e α-tocotrienol (LR-08), a mistura binária dos esteróides β-sitosterol e estigmasterol (LR-05), os flavonóides: afzelina (LR-12), miricetina-3-raminosídeo (LR-15) e o miricetina-3-glicosídeo (LR-16). Das flores foram isolados os compostos: canferol (LR-10), tilirosídeo (LR-13), licanolina (LR-14) e o diterpeno 1β,16α,17-trihidroxi-ent-caurano (LR-04). Esta investigação química resultou no isolamento de substâncias inéditas para a literatura, bem como para a espécie e o gênero. A determinação estrutural dos compostos isolados foi obtida pela análise dos espectros de ressonância magnética nuclear de hidrogênio-1 e carbono-13 uni e bidimensionais, espectros de massa obtidos por Impacto Eletrônico (EM-IE) e Ionização por electronSpray (EM-ESI) e os espectros de infravermelho (IV), bem como através da comparação com os dados da literatura.
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Larsson, Richard. "Boosting Gamma Neural Activity using Binaural Beats." Thesis, Linköpings universitet, Institutionen för datavetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-166074.
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In this paper, binaural beats were used as stimuli to induce Gamma neural activity in the brains of 18 participants with the purpose to see if the effect enhanced memory and/or speech perception. Participants conducted a word-list recall task, followed by a speech-in-noise task under three conditions: before Gamma stimulus, after Gamma stimulus, and after a placebo stimulus. The results showed that the method works to boost Gamma neural activity, but that neither memory nor speech-perception was significantly affected by the stimulus. The conclusion is that binaural beats is unreliable as a method to enhance memory and speech-perception in humans.
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Ali, Mohammod. "Analyses of self-resonant bent antennas." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ32701.pdf.
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Schneider, Stuart W. "Finding bent functions using genetic algorithms." Thesis, Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Sep/09Sep%5FSchneider.pdf.
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Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, September 2009.Thesis Advisor(s): Butler, Jon T. ; Stanica, Pantelimon. "September 2009." Description based on title screen as viewed on November 5, 2009. Author(s) subject terms: Genetic Algorithm, Bent Functions, Reconfigurable Computer, Field Programmable Gate Array (FPGA), Cryptology. Includes bibliographical references (p. 177-178). Also available in print.
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Scarpim, Fábio Augusto. "Bens simbólicos em laços de pertencimento." reponame:Repositório Institucional da UFPR, 2010. http://hdl.handle.net/1884/23957.
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Resumo: A presente pesquisa tem como objetivo analisar a construção da identidade etnocultural de um grupo de imigrantes italianos e seus descendentes instalados no município de Campo Largo (Paraná) no período de 1878 a 1937. Para isso, partimos do pressuposto de que a identidade de um um grupo étnico surge quando do contato interétnico, ou seja, da necessidade da afirmação de um nós diante dos outros. Nessa direção analisamos alguns dos signos culturais acionados pelo grupo para a construção de um sentimento de pertencimento grupal. Tais signos analisados foram as relações familiares, a religiosidade e as práticas de transmissão dos nomes de batismo. Procuramos verificar nesse trabalho como o grupo em estudo construiu sua identidade pautada pelos referenciais simbólicos e culturais da terra de partida, assim como se dá o processo de mudança tendo em vista a nova realidade e os contato culturais estabelecidos com os brasileiros. Para conduzir essa análise, utilizamos principalmente registros paroquiais (atas de batismos, casamentos e óbitos) que foram sistematizados pela metodologia de reconstituição de famílias, oriunda da demografia histórica. Através da análise da documentação foi possível perceber nos omportamentos referentes a família, as práticas religiosas e aos nomes de batismos a predominância de elementos típicos do mundo rural de origem desses imigrantes que simbolicamente os ligavam a terra de seus ancestrais.
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Carvalho, Maria Serina Areias de. "Propriedade fiduciária: bens móveis e imóveis." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/2/2131/tde-16112011-162843/.
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A presente dissertação começa com a evolução histórica de dois importantes institutos jurídicos, a fidúcia e a propriedade, a partir das raízes romanas. Já no direito brasileiro analisamos o conceito de negócio fiduciário e figuras afins, então passamos a estudar o contrato de alienação fiduciária. Em seguida abordamos a propriedade fiduciária, sua evolução legislativa no direito pátrio, e seus desdobramentos envolvendo móveis e imóveis, onde estabelecemos o conceito, a natureza jurídica, seus elementos constitutivos, e as conseqüências de seu inadimplemento. Não olvidamos o aspecto processual e as questões controvertidas, como a falência, a recuperação judicial e o cabimento ou não da prisão civil, dentre outros. No decorrer deste trabalho procuramos analisar crítica e comparativamente as figuras afins ao instituto da propriedade fiduciária e estabelecer as similitudes e diferenças em cada sistema estudado, assim como individualizar estes institutos previstos no Código Civil de 2002 e na Lei n. 9.514/97. Enfim, nosso estudo não estaria completo sem pesquisar a fidúcia nos sistemas francês, italiano e anglo-americano.This paper begins with the historical evolution of two important legal institutes, trust and ownership, since the Roman roots. However, in Brazilian law we analyze the concept of deed of trust and similar institutions, thus we will study the chattel mortgage agreement. Afterward, we will focus fiduciary ownership, its legal evolution in the Brazilian law, as well as, its divisions involving real and personal property, in which we set forth the concept, legal nature, its constitutive elements and the consequences arisen from its non-performance. We have not forgotten the procedural aspect and controversial issues as: bankruptcy, judicial recuperation and the acceptance or not of civil imprisonment, among others. During this work we tried to analyze both critically and comparatively, similar figures of the fiduciary ownership institute and establish the similarities and differences in each of the systems we studied, as well as individualize the institutes provided in the Civil Code of 2002 and in Act No. 9.514/97. Finally, our study would not be complete without researching trust in the French, Italian and Anglo-American systems.
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Zibetti, Fabíola Wüst. "A titularidade sobre os bens imateriais." Florianópolis, SC, 2008. http://repositorio.ufsc.br/xmlui/handle/123456789/92017.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Jurídicas. Programa de Pós-graduação em DireitoMade available in DSpace on 2012-10-24T04:53:04Z (GMT). No. of bitstreams: 1 251617.pdf: 980650 bytes, checksum: c6ab5213f89990286dc66d0f1376e456 (MD5)
Com a globalização e a ampliação da regulamentação internacional e nacional dos direitos de propriedade intelectual, foram surgindo uma série de novos bens imateriais. No Brasil, o histórico das leis regulando esses direitos é marcado pelo Alvará de 1809. Desde essa data até o período atual, especialmente após a adesão do Brasil ao Acordo sobre Aspectos dos Direitos de Propriedade Intelectual Relacionados ao Comércio, em 1994, a legislação sofreu inúmeras modificações, estendendo o escopo de proteção desses direitos. Nesse sentido, ampliou-se aos tipos de bens imateriais protegidos pelos direitos de propriedade intelectual, bem como os sujeitos que podem ser titulares desses bens. Essas mudanças não ocorreram apenas no Brasil, mas em todo o âmbito internacional. Nesse cenário, surge à indagação sobre a qual se dedica este trabalho: Quem pode ser titular dos bens imateriais? Esta questão relaciona-se à problemática crescente que norteia as relações entre sujeitos em matéria de propriedade intelectual, envolvendo os mais distintos setores, tais como empresas do setor privado, entidades do setor público, pessoas físicas, empregados e empregadores. Diante disso, como objetivo central da presente pesquisa realiza-se uma análise da titularidade sobre os bens imateriais, no âmbito da propriedade intelectual. Este estudo é desenvolvido, a partir da perspectiva do sujeito, em relação a vários bens imateriais. Em particular, ele se dedica à titularidade das obras literárias, científicas e artísticas, dos artistas intérpretes e executantes, dos fonogramas, da radiodifusão, dos programas de computador, das invenções, dos modelos de utilidade, dos desenhos industriais, das cultivares e das marcas. Con la globalización y la ampliación de la reglamentación internacional y nacional de los derechos de propiedad intelectual, han surgido una serie de nuevos bienes inmateriales. En Brasil, el histórico de las leyes reglando esos derechos es marcado por e Alvará de 1809. Desde esa fecha hasta el período actual, especialmente después de la adhesión de Brasil al Acuerdo sobre Aspectos de los Derechos de Propiedad Intelectual Relacionados al Comercio, en 1994, la legislación he pasado por muchas modificaciones, extendiendo la protección de esos derechos. En eso sentido, se ha ampliado los tipos de bienes inmateriales protegidos por los derechos de propiedad intelectual, así como los sujetos que pueden ser titulares de esos bienes. Esas mudanzas no han ocurrido solamente en Brasil pero en todo el ámbito. En eso escenario, surge la indagación sobre la cual dedicase esta investigación: ¿Quién puede ser titular de los bienes inmateriales? Esta cuestión se relaciona a la problemática creciente que nortea las relaciones entre sujetos en materia de propiedad intelectual, involucrando los más distintos sectores, tales como empresas del sector privado, entidades del sector público, personas físicas, empleados y empleadores. Ante esas consideraciones, cómo objetivo central de la presente investigación, se realiza un análisis de la titularidad sobre los bienes inmateriales, en el ámbito de la propiedad intelectual. Esto estudio se desarrolla a partir de la perspectiva del sujeto, en relación a varios bienes inmateriales. En particular, dedica-se a la titularidad de las obras literarias, científicas e artísticas, de los artistas intérpretes e ejecutantes, los fonogramas, la radiodifusión, los programas de ordenador, las invenciones, los modelos de utilidad, los diseños industriales, las obtenciones vegetales y las marcas.