Дисертації з теми "Rha2"
Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Rha2.
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-50 дисертацій для дослідження на тему "Rha2".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
1
Marangoni, Davide. "On Derived de Rham cohomology." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0095.
Повний текст джерелаАнотація:
La cohomologie de de Rham dérivée a été introduite par Luc Illusie en 1972, suite à ses travaux sur le complexe cotangent. Cette théorie semble avoir été oubliée jusqu’aux travaux récents de Bhatt et Beilinson, qui ont donné diverses applications, notamment en théorie de Hodge p-adique. D’autre part, la cohomologie de Rham dérivée intervient de manière cruciale dans une conjecture de Flach-Morin sur les valeurs spéciales des fonctions zêta des schémas arithmétiques. Dans cette thèse, on se propose d’étudier et de calculer la cohomologie de de Rham dérivée dans certains casThe derived de Rham complex has been introduced by Illusie in 1972. Its definition relies on the notion of cotangent complex. This theory seems to have been forgot until the recents works by Be˘ılinson and Bhatt, who gave several applications, in particular in p-adic Hodge Theory. On the other hand, the derived de Rham cohomology has a crucial role in a conjecture by Flach-Morin about special values of zeta functions for arithmetic schemes. The aim of this thesis is to study and compute the Hodge completed derived de Rham complex in some cases
2
Davis, Christopher (Christopher James). "The overconvergent de Rham-Witt complex." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/50593.
Повний текст джерелаАнотація:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 2009.Includes bibliographical references (p. 83-84).
We define the overconvergent de Rham-Witt complex ... for a smooth affine variety over a perfect field in characteristic p. We show that, after tensoring with Q, its cohomology agrees with Monsky-Washnitzer cohomology. If dim C < p, we have an isomorphism integrally. One advantage of our construction is that it does not involve a choice of lift to characteristic zero. To prove that the cohomology groups are the same, we first define a comparison map ... (See Section 4.1 for the notation.) We cover our smooth affine C with affines B each of which is finite, tale over a localization of a polynomial algebra. For these particular affines, we decompose ... into an integral part and a fractional part and then show that the integral part is isomorphic to the Monsky-Washnitzer complex and that the fractional part is acyclic. We deduce our result from a homotopy argument and the fact that our complex is a Zariski sheaf with sheaf cohomology equal to zero in positive degrees. (For the latter, we lift the proof from [4] and include it as an appendix.) We end with two chapters featuring independent results. In the first, we reinterpret several rings from p-adic Hodge theory in such a way that they admit analogues which use big Witt vectors instead of p-typical Witt vectors. In this generalization we check that several familiar properties continue to be valid. In the second, we offer a proof that the Frobenius map on W(...) is not surjective for p > 2.
by Christopher Davis.
Ph.D.
3
Rivers, Damien M. R. "Characterization of the Rhizobiaceae protein RhaK." ASM, 2013. http://hdl.handle.net/1993/30289.
Повний текст джерелаАнотація:
In Rhizobium leguminosarum the ABC transporter responsible for rhamnose transport is dependent on RhaK, a sugar kinase that is necessary for the catabolism of rhamnose. It was hypothesized that RhaK has two separate functions; phosphorylation of rhamnose, and an unknown interaction with the rhamnose ABC transporter.
To address this hypothesis a linker-scanning mutagenesis of rhaK was carried out. Two generated variants (RhaK72 and RhaK73) were found to maintain kinase activity, but were severely impaired in rhamnose transport function. Structural modelling suggested that both RhaK72 and RhaK73 affect surface exposed residues in two distinct regions localized to one face of the protein. This suggests that this proteins face may play a role in a protein-protein interaction that affects rhamnose transport.
Using a two-hybrid system, an N-terminal and a C-teminal fragment of RhaK were both shown to interact with the N-terminal fragment of RhaT. These fragments span the regions that contain the rhaK73 and rhaK72 inserts respectively. When the rhaK72 and rhaK73 insert alleles were cloned and assayed using the two-hybrid system, these they were unable to interact with the RhaT fragment, suggesting these inserts abolish transport by interfering with a physical interaction between RhaT and RhaK.
A phylogeny was generated based on the amino acid sequence of RhaK like proteins found in syntenous opereons. To gain insight into what residues may constitute a binding domain a PRALINE alignment of the orthologous kinases was combined with secondary structure analysis, known informative mutations, and functional residue predictions. A putative 12 amino acid binding site was identified using this method. An alanine scanning mutagenesis and subsequent two-hybrid analysis was carried out on this region. The substitution of any of these residues greatly affected the interaction between RhaT and RhaK.
Although heterologous complementation of RhaK is possible, cosmid complementation anomalies and phylogenetic analysis of RhaK indicates the R. leguminosarum and S. meliloti kinases are different. Through a series of heterologous complementation experiments, enzyme assays, gene fusions, and transport experiments we show that the R. leguminosarum kinase is capable of directly phosphorylating rhamnose and rhamnulose, whereas the Sinorhizobium meliloti kinase does not have rhamnose kinase activity.May 2015
4
Silva, Junior Soares da. "Introdução à cohomologia de De Rham." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-16112017-101825/.
Повний текст джерелаАнотація:
Começamos definindo a cohomologia clássica de De Rham e provamos alguns resultados que nos permitem calcular tal cohomologia de algumas variedades diferenciáveis. Com o intuito de provar o Teorema de De Rham, escolhemos fazer a demonstração utilizando a noção de feixes, que se mostra como uma generalização da ideia de cohomologia. Como a cohomologia de De Rham não é a única que se pode definir numa variedade, a questão da unicidade dá origem a teoria axiomática de feixes, que nos dará uma cohomologia para cada feixe dado. Mostraremos que a partir da teoria axiomática de feixes obtemos cohomologias, além das cohomologias clássicas de De Rham, a cohomologia clássica singular e a cohomologia clássica de Cech e mostraremos que essas cohomologias obtidas a partir da noção axiomática são isomorfas as definições clássicas. Concluiremos que se nos restringirmos a apenas variedades diferenciáveis, essas cohomologias são unicamente isomorfas e este será o teorema de De Rham.We begin by defining De Rhams classical cohomology and we prove some results that allow us a calculation of the cohomology of some differentiable manifolds. In order to prove De Rhams Theorem, we chose to make a demonstration using a notion of sheaves, which is a generalization of the idea of cohomology. Since De Rhams cohomology is not a only one that can be made into a variety, the question of unicity gives rise to axiomatic theory of sheaves, which give us a cohomology for each sheaf given. We will show that from the axiomatic theory of sheaves we obtain cohomologies, besides the classical cohomologies of De Rham, a singular classical cohomology and a classical cohomology of Cech and we will show that cohomologies are obtained from the axiomatic notion are classic definitions. We will conclude that if we restrict ourselves to only differentiable manifolds, these cohomologies are uniquely isomorphic and this will be De Rhams theorem.
5
Apaza, Nuñez Danny Joel. "El Teorema de De Rham-Saito." Pontificia Universidad Católica del Perú, 2014. http://repositorio.pucp.edu.pe/index/handle/123456789/95679.
Повний текст джерелаАнотація:
The theorem of De Rham-Saito is a generalization of a lemma due to De Rham [3], which was announced and used in [7] by Kyoji Saito, as noproof of this theorem was available, Le Dung Trang encouraged to Saito to publish the proof that can be seen in [8], which indirectly encourages us to detail the proof in this article for the many applications it has,we highlight the Godbillon-Vey algorithm [4]; in the proof of Theorem classical Frobenius given in [2]; in [6] we see some interesting applications, in the proof of Frobenius theorem with singularities [5]. In [1] we givefull details of the proof given by Moussu and Rolin.El teorema de De Rham-Saito es una generalización de un lema debido a De Rham [3], el cual fue enunciado y usado en [11] por Kyoji Saito, al no haber prueba de este teorema Le Dung Trang anima a Saito a publicar la prueba que puede ser vista en [12], lo cual indirectamente nos motiva a detallarla prueba en este articulo por las muchas aplicaciones que tiene, destacamos el algoritmo de Godbillon-Vey [5]; en la prueba del Teorema de Frobenius clásico dada en [2]; en [8] vemos unas aplicaciones interesantes; en la prueba del Teorema de Frobenius con singularidades [7]; en [1] se detalla la prueba realizada por Moussu y Rolin [10].
6
Ewald, Christian-Oliver. "Hochschild homology and de Rham cohomology of stratifolds." [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=965191931.
Повний текст джерела
7
Stacey, Andrew Edgell. "A construction of semi-infinite de Rham cohomology." Thesis, University of Warwick, 2001. http://wrap.warwick.ac.uk/55501/.
Повний текст джерелаАнотація:
The purpose of this thesis is to describe a construction of semi-infinite de Rham cohomology for infinite dimensional manifolds equipped with the extra structure of a polarisation. We describe the construction for finite dimensions and show how it extends to other cases; in particular the semi-infinite. We then define variations for Hilbert manifolds which allow us to calculate the semi-infinite cohomology of the projective space and the Grassmannians of a polarised Hilbert space. Finally, we consider some of the implications of these results for index theory, in particular for the Witten genus.
8
Costeanu, Viorel 1975. "On the 2-typical de Rham-Witt complex." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/32242.
Повний текст джерелаАнотація:
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 2004.Includes bibliographical references (p. 55).
In this thesis we introduce the 2-typical de Rham-Witt complex for arbitrary commutative, unital rings and log-rings. We describe this complex for the rings Z and Z(2), for the log-ring (Z(2), M) with the canonical log-structure, and we describe its behaviour under polynomial extensions. In an appendix we also describe the p-typical de Rham-Witt complex of (Z(p), M) for p odd.
by Viorel Costeanu.
Ph.D.
9
Mendes, Thais Zanutto. "Do cálculo à cohomologia: cohomologia de de Rham." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-17072012-144946/.
Повний текст джерелаАнотація:
Neste trabalho, estudamos a cohomologia de de Rham e métodos para os seus cálculos. Finalizamos com aplicações da cohomologia de de Rham em teoremas da topologiaIn this work we study the de Rham cohomology and methods for its calculations. We close it with applications of the Rham cohomology in theorems from topology
10
Munoz, Bertrand Ruben. "Coefficients en cohomologie de De Rham-Witt surconvergente." Thesis, Normandie, 2020. http://www.theses.fr/2020NORMC205.
Повний текст джерелаАнотація:
Deligne a défini dans les années 70 le complexe de De Rham-Witt, qui permit à Illusie de prouver un théorème de comparaison avec la cohomologie cristalline. Ce résultat fut ensuite étendu par Etesse aux coefficients. En 2004, Bloch démontra que le théorème de comparaison cohomologique étendu aux coefficients d'Etesse possédait une interprétation plus profonde : sous certaines conditions, on obtient en fait une équivalence de catégories entre des cristaux et des connexions de De Rham Witt.Plus récemment, Davis, Langer et Zink ont introduit un complexe de De Rham-Witt surconvergent et démontré des théorèmes de comparaison avec les cohomologies de Monsky-Washnitzer et rigide. Ces derniers furent ensuite étendus aux coefficients par Ertl, qui démontra notamment un quasi-isomorphisme de cohomologie avec les isocristaux surconvergents.On peut alors légitimement se demander si les résultats de Bloch possèdent une variante surconvergente : c'est-à-dire que l'on aimerait pouvoir obtenir une interprétation des isocristaux surconvergents pour la cohomologie de De Rham-Witt surconvergente. On peut y parvenir en considérant des connexions de De Rham-Witt surconvergentes comme définies par Ertl, pour lesquelles on peut raisonnablement espérer retrouver les mêmes opérations cohomologiques que pour les F-isocristaux.Cette question fut la motivation de cette thèse, et le théorème principal de ce travail y répond en partie positivement. Pour y parvenir, il est nécessaire d'expliciter la structure locale du complexe de De Rham-Witt surconvergent, et de redéfinir la notion de surconvergence afin de pouvoir mieux contrôler la convergence des produits de différentielles de De Rham-WittUnder a few assumptions, we prove an equivalence of category between a subcategory of F-isocristals on a smooth algebraic variety and overcongergent integrable De Rham-Witt connections. We do so by giving an equivalent definition of overconvergence, and by studying the explicit local structure of the De Rham-Witt complex
11
Schlierkamp, Thorben [Verfasser], Jochen [Akademischer Betreuer] Wengenroth, Jochen [Gutachter] Wengenroth, and Leonhard [Gutachter] Frerick. "De Rham and Cech-de Rham Cohomologies of Smooth Foliated Manifolds / Thorben Schlierkamp ; Gutachter: Jochen Wengenroth, Leonhard Frerick ; Betreuer: Jochen Wengenroth." Trier : Universität Trier, 2021. http://d-nb.info/1238896499/34.
Повний текст джерела
12
Andréasson, Fredrik. "Higher order differentials and generalized Cartan-de Rham complexes." Doctoral thesis, KTH, Mathematics, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3597.
Повний текст джерела
13
Grimm, Felix Fritz [Verfasser], and Katrin [Akademischer Betreuer] Wendland. "The chiral de Rham complex of tori and orbifolds." Freiburg : Universität, 2016. http://d-nb.info/1124004785/34.
Повний текст джерела
14
Amaral, Marília Abrahão. "Modelo RHA - Retroalimentação em Hipermídia Adaptativa." Florianópolis, SC, 2008. http://repositorio.ufsc.br/xmlui/handle/123456789/90895.
Повний текст джерелаАнотація:
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Engenharia e Gestão do ConhecimentoMade available in DSpace on 2012-10-23T16:29:30Z (GMT). No. of bitstreams: 1 255755.pdf: 1875883 bytes, checksum: 9f0f27e2e8d0618ff0e4a59173c66d38 (MD5)
A presente pesquisa tem como objetivo propor uma extensão para modelos de referência em hipermídia adaptativa de acordo com resultados de avaliação de aprendizagem e estilos cognitivos dos aprendizes. É proposto, portanto, um modelo denominado RHA, Modelo de Retroalimentação em Hipermídia Adaptativa, que utiliza os resultados obtidos com as avaliações de aprendizagem e as definições derivadas dos estilos cognitivos dos aprendizes a fim de prover a retroalimentação dos demais modelos existentes em um hipermídia adaptativo. Na concepção do RHA foi adotada a representação por meio da UML (Unified Modeling Language) com objetivo de diminuir o risco de ambigüidade, facilitar o processo de modelagem computacional, proporcionar o reaproveitamento do modelo e otimizar a implementação do mesmo. Para apoiar a criação do RHA, foi adotado o modelo de referência Munich. Este utiliza UML e apresenta uma arquitetura que contempla módulos tradicionais dos hipermídias adaptativos, tais como: modelo de domínio, de usuário e de adaptatividade; porém, como os demais modelos de referência atuais, este não contempla a definição de itens explícitos à reutilização dos dados obtidos com as avaliações de aprendizagem. O modelo RHA foi criado como uma extensão do Munich, com concepção fundamentada em duas dimensões de estilos cognitivos estabelecidos (MESSICK, 1976), que nortearam a escolha de instrumentos de avaliação de aprendizagem destinados à modalidade ensino a distância. Os instrumentos de avaliação de aprendizagem abrangem atividades definidas de acordo com um grupo de ferramentas de comunicação e interação (síncronas e assíncronas) amplamente adotadas no ensino a distância. A modelagem do RHA envolve aspectos relativos a UML, como a criação das classes com seus atributos e métodos e os relacionamentos entre as classes já existentes no Munich. Para simular a aplicação do modelo RHA, foi definido um domínio de conhecimento relacionado à área de apoio ao ensino sobre Mercado de Capitais. Este tema se mostrou adequado, pois dada à quantidade de materiais e informações disponíveis sobre o assunto, é relevante a adoção de diferentes estilos de aprendizagem com tipos particulares de conteúdos e empregos das ferramentas de comunicação e interação, visando à avaliação de aprendizagem, para públicos distintos. Atualmente o número de cursos a distância no referido domínio de conhecimento é escasso, o que o torna ainda mais relevante para exploração.
15
Roberts, Joseph N. "Identification and characterization of DyP peroxidases from Rhodococcus jostii RHA1." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/31830.
Повний текст джерелаАнотація:
The lignin-degrading soil bacterium Rhodococcus jostii RHA1 contains two genes encoding DyP-type peroxidases. Based on phylogenetic studies, the enzymes were classified as DypA, which carries a TAT sequence, and DypB, which carries a C-terminal sequence predicted to target it to an icosahedral protein nanocompartment. Consistent with other DyPs, DypA showed 6-fold greater apparent specificity for the anthraquinone dye Reactive Blue 4 (kcat/Km = 12,800 ± 600 M⁻¹1s⁻¹) than either ABTS or pyrogallol. By contrast, DypB showed greatest apparent specificity for ABTS (kcat/Km = 2000 ± 100 M⁻¹s⁻¹) and also oxidized Mn(II) (kcat/Km = 25.1 ± 0.1 M⁻¹s⁻¹). Herein the x-ray crystal structure of DypB is presented to 1.4 Å resolution, revealing a hexa-coordinated heme molecule and an additional Asn residue in the active site which is unique to DypB. Analysis of the DypB structural surface provides additional contrast to the structure of plant peroxidases, and identifies a potential substrate-binding pocket distal to the heme center. Assay of gene deletion mutants using a colorimetric lignin degradation assay reveals that a ΔdypB mutant shows greatly reduced lignin degradation activity, consistent with a role in lignin breakdown. Recombinant DypB protein also shows activity in the colorimetric assay, which is increased 5-fold in the presence of Mn(II). Overall, the different reactivities of the RHA1 DyPs with reducing substrates and Mn(II) enhanced ligninolytic activity of DypB have important implications for biotechnological applications.
16
Morgan, Mihangel. "Rhai themau motiffau a chymeriadau yng ngwaith John Gwilym Jones." Thesis, Aberystwyth University, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301920.
Повний текст джерелаАнотація:
Er ei fod yn lletchwith a hirwyntog ar brydiau defnyddir yr enw llawn John Gwilym Jones trwy gydol y drafodaeth. Buasai defnyddio John neu John Gwilym yn awgymru agwedd bersonol anghymwys; buasai Mr neu Dr Jones neu J Gwilym Jones yn orffurfiol; a hyfdra dibarch fuasai defnyddio JGJ (ond feli defnyddir yn y nodiadau). Hepgorir teitlau (Mr, Dr, Yr Athro, Syr) yn gyfan gwbi. Er mwyn gwahaniaethu rhwng defnydd John Gwilym Jones a llenorion eraill o goll geiriau ( ... ) yn eu testunau alm toriadau fy hun defnyddiais goll geiriau rhwng bachau petryal i ddynodi fy nhoriadau fy hun fel rheol. Cedwais ddyfyniadau o'r Saesneg yn yr iaith wreiddiol a chyfieithiadau o ieithoedd eraill ilr Gymraeg neulr Saesneg yn iaith y cyfieithiad.
17
Schüler, Axel. "Äußere Algebren, de-Rham-Kohomologie und Hodge-Zerlegung für Quantengruppen." Doctoral thesis, Universitätsbibliothek Leipzig, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-218057.
Повний текст джерелаАнотація:
In dieser Arbeit wird die de-Rham-Kohomologie für die Quantengruppen zu den vier klassischen Serien von Lie-Gruppen bestimmt und es wird der Hodgeschen Zerlegungssatz gezeigt. Als entscheidendes Mittel wurde der Laplace-Beltrami-Operator L für Woronowicz’ äußere Algebren entwickelt. Für transzendente Werte von q und reguläre Kalkülparameter z ist L diagonalisierbar. Für die obigen Quantengruppen bestimmen wir die Eigenwerte von L, die neben q und z von zwei integralen dominanten Gewichten abhängen. Wie im klassischen Fall wird die de-Rham-Kohomologie durch harmonische Formen repräsentiert. Jedoch entspricht nur im Fall der A-Serie jeder harmonischen Form auch eine de-Rham-Kohomologieklasse. Im Falle der B-, C- und D-Serien sind biinvariante Formen nicht notwendig geschlossen. Es gilt aber, dass jede biinvariante Form harmonisch ist. Das zweite Hauptresultat ist die Hodge-Zerlegung für die Quantengruppen GLq(N) und SLq(N): Ist der Kalkülparameter z regulär, so lässt sich jede Form eindeutig zerlegen in die Summe aus einem Rand, einem Korand und einem Kohomologierepräsentanten. Ferner gilt, analog zum klassischen Fall, dass die folgenden drei Formenräume übereinstimmen: die biinvarianten Formen, die harmonischen Formen und die de-Rham-Kohomologie. Für die orthogonalen und symplektischen Quantengruppen gibt es keine vollständige Hodge-Zerlegung. Nur für die Elemente, die im Bild des Laplace-Beltrami-Operators liegen, gibt es eine eindeutige Zerlegung in Rand und Korand. Für die Standardkalküle auf den Quantengruppen GLq(N) und SLq(N) wird die Größe von Woronowicz’ äußerer Algebra bestimmt. Es wird gezeigt, dass der Raum der linksinvarianten k-Formen (N² über k)-dimensional ist. Die Algebra der biinvarianten Formen ist graduiert kommutativ. Ihre Poincaré-Reihe ist (1+t)(1+t³) ... (1+t^(2N-1)). Biinvariante Formen sind geschlossenConsider one of the standard bicovariant first order differential calculi for the quantum groups GLq(N), SLq(N), SOq(N), or SPq(N), where q is a transcendental complex number. It is shown that the de Rham cohomology of Woronowicz' external algebra coincides with the de Rham cohomologies of its left-invariant, its right-invariant and its bi-invariant subcomplexes. In the cases GLq(N) and SLq(N), the cohomology ring is isomorphic to the left-invariant external algebra and to the vector space of harmonic forms. We prove a Hodge decomposition theorem in these cases. The main technical tool is the spectral decomposition of the quantum Laplace-Beltrami operator. As in the classical case all three spaces of differential forms coincide: bi- invariant forms, harmonic forms and the de-Rham-cohomology. For orthog- onal and symplectic quantum groups there is no complete Hodge decompo- sition. In case of the standard calculi on the quantum groups GLq(N) and SLq(N), the size of exterior algebra is computed. The space of left-invariant k-forms has dimension C(N², k) (binomial coefficient). The algebra of bi-invariant forms is graded commutative with Poincaré series (1+t)(1+t³) ... (1+t^(2N-1)). Bi-invariant forms are closed
18
Silva, Josà Gleison Carneiro da. "Grupos de holonomia e o teorema de decomposiÃÃo de de Rham." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=5729.
Повний текст джерелаАнотація:
CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel SuperiorNesta dissertaÃÃo fazemos uma breve exposiÃÃo sobre grupos de holonomia de variedades riemannianas e provamos alguns resultados tÃcnicos necessÃrios para garantir a existÃncia de uma decomposiÃÃo de de Rham de uma variedade riemanniana completa e simplesmente conexa. Tal existÃncia constitui a parte essencial de um famoso resultado sobre grupos de holonomia, o teorema de decomposiÃÃo de de Rham, cuja demonstraÃÃo constitui o cerne deste trabalho.
In this report we give a brief description of holonomy groups of Riemannian manifolds and prove some technical results needed to guarentee the existence of a de Rham decomposition of a complete and simply connected Riemannian manifold. Such an existence constitutes itself as the core of a famous result on holonomy groups, they so-called de Rham's decomposition theorem, whose proof is our ultimate goal.
19
Rodrigues, Jacinto Joaquín. "(ϕ,Γ)-modules de de Rham et fonctions L p-adiques". Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066512.
Повний текст джерелаАнотація:
Nous étudions, dans cette thèse, la construction des fonctions L p-adiques des motifs sur Q et, plus particulièrement, des formes modulaires. Dans les premiers trois chapitres on étend des constructions de Perrin-Riou pour construire, pour une représentation p-adique de de Rham V du groupe de Galois absolu G_Qp de Qp (ou, plus généralement, un (ϕ,Γ)-module de de Rham sur l'anneau de Robba) et un système compatible d'éléments globaux, une fonction L p-adique. On montre, en utilisant des lois de réciprocité montrées par Perrin-Riou, Colmez, Cherbonnier-Colmez, Berger et Nakamura, que ces fonctions interpolent des valeurs arithmétiques intéressantes aux caractères localement algébriques.Dans les derniers trois chapitres, on se spécialise au cas de dimension 2. On démontre, en s'inspirant des techniques de Nakamura et des nouvelles techniques de changement de poids de Colmez introduites pour l'étude des vecteurs localement algébriques dans la correspondance de Langlands L p-adique pour GL₂(Qp), une équation fonctionnelle pour notre fonction L p-adique. Comme une application de cette équation fonctionnelle, on fournit les argument manquants dans les travaux de Nakamura, complétant la preuve de la conjecture ε locale de Kato pour les représentations de dimension 2. Pour le motif associé à une forme modulaire, on utilise tous ces résultats pour interpréter les valeurs interpolées par la fonction L p-adique en termes des valeurs spéciales de la fonction L complexe de cette formeThis thesis studies the construction of p-adic L-functions associated to motives over Q and, in particular, to modular forms.In the first three chapters we generalize some constructions of Perrin-Riou in order to construct, for any p-adic de Rham representation V of the absolute Galois group G_Qp of Qp (or, more generally, any de Rham (ϕ,Γ)-module over the Robba ring) and any compatible system of global elements, a p-adic L-function. We show, by the use of some reciprocity laws proved by Perrin-Riou, Colmez, Cherbonnier-Colmez, Berger and Nakamura, that these functions interpolate interesting arithmetic values at locally algebraic characters.The last three chapters deal with the particular case of dimension 2. We show, inspired by some techniques of Nakamura and certain weight change techniques introduced by Colmez for the study of locally algebraic vectors in the p-adic Langlads correspondence for GL₂(Qp), that our p-adic L-function satisfies a functional equation. As an application of our functional equation, we fulfil the missing arguments in the work of Nakamura, providing a complete proof of Kato's local ε-conjecture for 2-dimensional representations. For the motive associated to a modular form, we use these results to interpret the interpolated values of the p-adic L-function in terms of special values of the complex L-function of the form
20
Luna, Rodrigo Moreno. "Cohomologias de de Rham e Doubeault em teorias de campo abeliano." Universidade Estadual de Londrina. Centro de Ciências Exatas. Programa de Pós-Graduação em Física, 2010. http://www.bibliotecadigital.uel.br/document/?code=vtls000159751.
Повний текст джерелаАнотація:
Nesta dissertação analisamos formas diferenciais e suas relações com as cohomologias de de Rham e de Dolbeault. Discutimos as aplicações dessas cohomologias em teorias de campo abelianas.In this dissertation we analyze the differential forms with it relations to the de Rham and Dolbeault cohomologies. We discuss the aplications of these cohomologies to the abelian field theories.
21
Silva, José Gleison Carneiro da. "Grupos de holonomia e o teorema de decomposição de de Rham." reponame:Repositório Institucional da UFC, 2011. http://www.repositorio.ufc.br/handle/riufc/878.
Повний текст джерелаАнотація:
SILVA, José Gleison Carneiro da ; MUNIZ NETO, Antônio Caminha. Grupos de holonomia e o teorema de decomposição de de Rham. 2011. 40f. Dissertação (mestrado)- Universidade Federal do Ceará, Pós-Graduação em Matemática, Fortaleza-CE, 2011.Submitted by Rocilda Sales (rocilda@ufc.br) on 2011-10-10T12:47:46Z No. of bitstreams: 1 2011_dis_jgcsilva.pdf: 443077 bytes, checksum: 0c30fd075df571c219406e6159d2b9c7 (MD5)
Approved for entry into archive by Rocilda Sales(rocilda@ufc.br) on 2011-10-10T12:55:18Z (GMT) No. of bitstreams: 1 2011_dis_jgcsilva.pdf: 443077 bytes, checksum: 0c30fd075df571c219406e6159d2b9c7 (MD5)
Made available in DSpace on 2011-10-10T12:55:18Z (GMT). No. of bitstreams: 1 2011_dis_jgcsilva.pdf: 443077 bytes, checksum: 0c30fd075df571c219406e6159d2b9c7 (MD5) Previous issue date: 2011
In this report we give a brief description of holonomy groups of Riemannian manifolds and prove some technical results needed to guarentee the existence of a de Rham decomposition of a complete and simply connected Riemannian manifold. Such an existence constitutes itself as the core of a famous result on holonomy groups, they so-called de Rham's decomposition theorem, whose proof is our ultimate goal.
Nesta dissertação fazemos uma breve exposição sobre grupos de holonomia de variedades riemannianas e provamos alguns resultados técnicos necessários para garantir a existência de uma decomposição de de Rham de uma variedade riemanniana completa e simplesmente conexa. Tal existência constitui a parte essencial de um famoso resultado sobre grupos de holonomia, o teorema de decomposição de de Rham, cuja demonstração constitui o cerne deste trabalho.
22
George, Delyth Ann. "Rhai agweddau ar serch a chariad yn y nofel Gymraeg - 1917-85." Thesis, Aberystwyth University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295763.
Повний текст джерела
23
Shiguemoto, Denis Antonio. "Análise da dinâmica dos movimentos de um riser híbrido auto-sustentável (RHAS)." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263652.
Повний текст джерелаАнотація:
Orientadores: Celso Kazuyuki Morooka, Eugênio Libório Feitoza FortalezaDissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica e Instituto de Geociências
Made available in DSpace on 2018-08-21T00:36:50Z (GMT). No. of bitstreams: 1 Shiguemoto_DenisAntonio_M.pdf: 2730769 bytes, checksum: 3e344d27e331583f273c868cd954634f (MD5) Previous issue date: 2012
Resumo: Descobertas recentes de petróleo em laminas d'água cada vez mais profundas tem motivado o desenvolvimento de novas configurações de sistemas de produção de petróleo. Neste contexto, o Riser Hibrido Auto Sustentável (RHAS) surge como uma alternativa para produção de petróleo em águas ultraprofundas...Observação: O resumo, na íntegra, poderá ser visualizado no texto completo da tese digital
Abstract: Recent discoveries of petroleum in water depths deeper and deeper have motivated the development of new configurations of petroleum production systems. In this context, the Self Standing Hybrid Riser (SSHR) is an alternative to petroleum production in ultra deep waters...Note: The complete abstract is available with the full electronic document
Mestrado
Explotação
Mestre em Ciências e Engenharia de Petróleo
24
Damaville, Stéphane. "Opérateurs réguliers sur les modules de Hilbert associés au complexe de Rham." Paris 7, 2002. http://www.theses.fr/2002PA077230.
Повний текст джерела
25
Oucherif-El, Khalloufi Dounia. "Produit interne de modules de Dieudonné et complexe de De Rham-Witt." Valenciennes, 2001. https://ged.uphf.fr/nuxeo/site/esupversions/099c2900-d86a-4851-876b-69c6d001c446.
Повний текст джерелаАнотація:
Dans l'étude des variétés ou des schémas, le complexe de De Rham est un bon outil pour construire une théorie cohomologique lorsque la caractéristique du corps de base est nulle. En caractéristique positive, plusieurs méthodes ont été utilisées pour construire une généralisation de ce complexe, en particulier Illusie a construit un complexe appelé complexe de De Rham-Witt, qui permet de calculer la cohomologie cristalline. Dans cette construction, la structure de module sur l'anneau de Dieudonné, et en particulier l'action du morphisme de Frobenius n'apparait qu'à la fin, grâce au complexe des formes entières. Dans ce travail, nous construisons à la Kähler, dans le cas d'une algèbre de polynômes, un complexe appelé complexe de De Rham Dieudonné, tout en conservant la structure de module sur l'anneau de Dieudonné. Nous avons calculé explicitement ce complexe et nous montrons qu'il est isomorphe au complexe des formes entières.
26
Schurter, Brandon T. "Regulation of RHA and NIP45 function by arginine methylation /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2005. http://wwwlib.umi.com/cr/ucsd/fullcit?p3166397.
Повний текст джерела
27
Nicolas, Virginie. "Interaction du complexe membranaire RH avec le squelette erythrocytaire spectrine-dépendant : caractérisation moléculaire et altération dans des phénotypes variants." Paris 7, 2004. http://www.theses.fr/2004PA077132.
Повний текст джерела
28
Rülling, Kay. "Additive Chow groups with higher modulus and the generalized de Rham-Witt complex." [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=975240412.
Повний текст джерела
29
Lan, Guitang [Verfasser]. "Periodic Higgs-de Rham flows and representations of algebraic fundamental groups / Guitang Lan." Mainz : Universitätsbibliothek Mainz, 2014. http://d-nb.info/1053544936/34.
Повний текст джерела
30
Griffiths, Ann. "Rhai agweddau ar y syniad o genedl yng nghyfnod y cywyddwyr 1320-1603." Thesis, Aberystwyth University, 1988. http://hdl.handle.net/2160/2a39122e-86f2-4ea0-bead-c983d0f6b8bb.
Повний текст джерела
31
Diogo, Maria Claudia Miranda. "Pesquisa e desenvolvimento de materiais avançados no Brasil : uma avaliação de projetos RHAE." [s.n.], 1998. http://repositorio.unicamp.br/jspui/handle/REPOSIP/287241.
Повний текст джерелаАнотація:
Orientador: Celso Pinto FerrazDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Geociencias
Made available in DSpace on 2018-07-24T06:01:00Z (GMT). No. of bitstreams: 1 Diogo_MariaClaudiaMiranda_M.pdf: 4507321 bytes, checksum: 47fc48e89156886cf93703ca8901c9a3 (MD5) Previous issue date: 1998
Resumo: O presente trabalho visa analisar os resultados do Programa RHAE - Programa de Capacitação de Recursos Humanos em Atividades Estratégicas, na área de Materiais Avançados, por meio da avaliação dos projetos de Pesquisa e Desenvolvimento - P&D, apoiados pelo RHAE no período compreendido entre janeiro de 1991 e dezembro de 1994, considerando as bolsas utilizadas até junho de 19%. O Programa RHAE tem por objetivo principal o aumento do número e qualificação de pesquisadores e técnicos em áreas consideradas importantes no aumento da competitividade e produtividade do País. Por ser um programa que atua apenas na capacitação de recursos humanos, o RHAE apresenta-se como um programa complementar aos demais programas do Ministério da Ciência e Tecnologia orientados para o apoio a projetos de desenvolvimento científico e tecnológico. A área de Materiais Especiais foi selecionada para análise por sua estreita ligação com o setor mineral. O estudo se deu por meio da aplicação, via postal, de um questionário preparado especificamente para esse fim. O desenho do questionário, parte essencial na análise realizada, esteve sujeito a restrições impostas pela disponibilidade de informações dos projetos que não tinham a preocupação nem estavam estruturados para contabilizar ou registrar informações que seriam relevantes para uma avaliação. O questionário procurou identificar nos projetos aspectos relativos à natureza das instituições proponentes, às diversas fontes de financiamento, à gênese e natureza dos mesmos, às linhas de pesquisa em desenvolvimento, aos resultados finais atingidos, aos efeitos diretos e indiretos (efeitos tecnológicos, comerciais, de organização e métodos e do fator trabalho), às interações institucionais, aos fatores de insucesso e às perspectivas de sua continuidade. Anteriormente à aplicação do questionário e avaliação das respostas, foi realizada uma análise dos dados referentes à quantidade de bolsas aprovadas e utilizadas e respectivos valores aprovados e utilizados, procurando identificar a natureza das instituições usuárias, a distribuição regional e por tipo de bolsa, para um universo de 81 (oitenta e um ) projetos aprovados no período em análise. A análise mostrou a necessidade de uma ação mais indutiva do RHAE para maior participação de empresas, maior disseminação regional, absorção de bolsistas, projetos induzidos para temas relevantes, existência de uma política de comercialização da pesquisa e agilidade na implementação das bolsas. Um maior poder de indução poderia se dar por meio da associação do RHAE a outros instrumentos de ação do Governo, na área de C&T. Por outro lado, o RHAE apresentou coerência com seus objetivos no que diz respeito ao caráter de programa de apoio complementar, projetos de natureza fundamental e aplicada e, promotor de interações institucionais, mostrando que sua manutenção e um constante aperfeiçoamento fazem-se necessários, de forma a colaborar na inserção do Pais no contexto mundial, por meio da capacitação continuada de recursos humanos para produção de bens e serviços de alto valor agregado
Abstract: The current work aims to analyze the results 01' the RHAE Program - Program 01' Human Resources Training in Strategic Activities in the area 01' Advanced MateriaIs, through the evaluation ofthe R&D projects supported by the RHAE during the period between January 1991 and December 1994, considering the fellowships implemented until June 19%. The RHAE Program main goal is to increase the number and the qualification 01' researchers and technicians in areas lhat are considered important for the increase 01' Country's competitiveness and productivity. Because it is a program aiming exclusively the human resources training, the RHAE presents itself as a complementary program for the other programs 01' the Ministry 01' Science and Technology directed to the support 01' the scientific and technologica1 development pujects. The Special Materiais area has been selected for evaluation in this woIk due to its close link with the mineral sector. The completion 01' this study was achieved through the application, by mail, 01' questionnaire specifica1ly prepared for this end The development ofthis questionnaire, an essential part for the development ofthe study, was subject to restrictions imposed by the availability 01' the projects' information which were not concemed with nor were structured for the accounting or the registering 01' information that would be relevant for an evaluation. The questionnaire tried to identitY in the projects the aspects concemed with the nature 01' the proponent institutions, the severa! financing sources for the projects, the tines 01' the research in progress, the genesis and nature 01' the project, the genesis and nature 01' the project, the final results achieved, the direct and indirect etTects (technological, commercial, organization and methods and woIk factor), the institutional interactions, the failure factors and the perspectives 01' continuity ofthe project. Prior to the application 01' the questionnaire and the evaluation 01' the answers, it was made an analysis 01' the data conceming the number 01' approved and used fellowships and 01' their approved and used values, trying to identitY the nature 01' the user institution, the regional distribution by type 01' fellowship for na universe 01'81 projects approved during the period under analysis. The analysis showed lhat a more inductive action was needed to be developed by the RHAE for a broader participation 01' enterprises, for the absotption 01' the fellowship recipients, for projects induced to relevant themes, for the existence 01' a policy for research commercialization and for speeding up the fellowship implementation. A greater capacity 01' induction could be achieved through the association 01' the RHAE to other government instruments 01' action within the area 01' S&T. On the other hand, the RHAE has presented coherence with its objectives regarding the nature ofthe program 01' complementary support, the pujects 01' fundamental and applied nature and promoter 01' institutional interaction, showing that its permanence and a continuous improvement are needed so that this program may collaborate for the insertion 01' the Country in the world context through the constant training 01' human resources for the production 01' goods and services ofhigh added value
Mestrado
Administração e Politica de Recursos Minerais
Mestre em Geociências
32
Benjelloun, Fatine. "Etude fonctionnelle De Glycoprotéines RhAG et RhCG : implication Dans le Transport de l'Ammonium." Paris 6, 2004. http://www.theses.fr/2004PA066371.
Повний текст джерела
33
Almeida, Junior Raimundo José. "O teorema de decomposição de hodge-de rham e os solitons de ricci." Instituto de Matemática . Departamento de Matemática, 2013. http://repositorio.ufba.br/ri/handle/ri/19413.
Повний текст джерелаАнотація:
Submitted by Marcio Filho (marcio.kleber@ufba.br) on 2016-06-07T14:20:01Z
No. of bitstreams: 1
CÓPIA DA DISSERTAÇÃO-RAIMUNDO.pdf: 1863654 bytes, checksum: 4e86de440e13f7c0831c1f65d5f87373 (MD5)Approved for entry into archive by Uillis de Assis Santos (uillis.assis@ufba.br) on 2016-06-07T18:36:05Z (GMT) No. of bitstreams: 1 CÓPIA DA DISSERTAÇÃO-RAIMUNDO.pdf: 1863654 bytes, checksum: 4e86de440e13f7c0831c1f65d5f87373 (MD5)
Made available in DSpace on 2016-06-07T18:36:05Z (GMT). No. of bitstreams: 1 CÓPIA DA DISSERTAÇÃO-RAIMUNDO.pdf: 1863654 bytes, checksum: 4e86de440e13f7c0831c1f65d5f87373 (MD5)
A teoria dos solitons de Ricci desempenha um papel fundamental no estudo dos fluxos de Ricci Hamiltonianos. Tal estudo serviu de base para a demonstração da Conjectura de Poincaré, problema que durou muitos anos na Matemática e só foi solucionado por Gregori Perelman em 2002. Este trabalho tem como objetivo demonstrar o Teorema de decomposição de Hodge-de Rham e apresentar resultados acerca dos solitons de Ricci obtidos a partir deste. Encontram-se estes resultados no artigo "Some applications of the Hodge-de Rham decomposition to Ricci solitons
34
Quarshie, Fredricka F. "Synthesis and Characterization of 2,2-cis-[Rh2(NPhCOCH3)4]•NCC6H4R where R = H, 2-CH3, 3-CH3, 4-CH3 and [Rh2(O2CCH3)(NPhCOCF3)3]." Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/etd/2289.
Повний текст джерелаАнотація:
Five novel compounds were synthesized and characterized. Crystal structures were determined using Rigaku Mercury 375/MCCD(XtaLAB mini) diffractometer with graphite monochromated MoKα radiation. The crystal structures of [Rh2(NPhCOCH3)4•xNCC6H4R where x = 1 or 2 and R=H, 2-CH3,3-CH3 and 4-CH3 were solved to an R1 value of less than 5 (R1= Σ||Fo| - |Fc|| / Σ |Fo|). In each of the nitrile complexes, the rhodium is five or six coordinate and possesses pseudo D4h symmetry. The complexes were also characterized by NMR and IR spectroscopy. [Rh2(CO2CCH3)(PhCOCF3)3] was also synthesized. In this complex, each rhodium atom is six coordinate, thus each rhodium is in an octahedral environment. Details of each synthesized complex are discussed.
35
Rhau, Marcel Johann [Verfasser], and Martina [Akademischer Betreuer] Schnellenbach-Held. "Zur Eignung von Ultrahochleistungsbeton (UHPC) als Zahnradwerkstoff / Marcel Johann Rhau ; Betreuer: Martina Schnellenbach-Held." Duisburg, 2021. http://d-nb.info/1233199404/34.
Повний текст джерела
36
Rozensztajn, Sandra. "Compactifications toroïdales et cohomologie de De Rham et cristalline de certaines variétés de Shimura." Paris 13, 2005. http://www.theses.fr/2005PA132040.
Повний текст джерелаАнотація:
L'objectif de cette thèse est de développer pour les groupes unitaires, et particulièrement le groupe GU(2,1), un équivalent du travail de Chai et Faltings sur les intégrales d'Eichler pour les groupes symplectiques. On abordera aussi l'aspect entier de cette théorie. La première étape consiste à construire de bonnes compactifications des modèles entiers de la variété de Shimura asssociée, et de son schéma abélien universel. Nous définissons ensuite des faisceaux cohérents automorphes sur la variété de Shimura associés à certaines représentations du groupe, et leur prolongement à la compactification, et nous étudions la cohomologie de ces faisceaux à laide du complexe BGG. Enfin on associe aux représentations du groupe des systèmes locaux dont on compare la cohomologie étale avec la cohomologie de De Rham et cristalline des faisceaux cohérents automorphes définis précédemment.
37
Tan, Jennie. "Synthesis and Characterization of Complexes of [Rh2(NPhCOCH3)4] and Nitriles." Digital Commons @ East Tennessee State University, 2012. https://dc.etsu.edu/honors/49.
Повний текст джерелаАнотація:
The rhodium carboxamide [Rh2(NPhCOCH3)4]L (L=axial ligand), has applications as a catalyst for carbenoid transformations. To explore the nature of the rhodium-carbene bond, studies between Rh2(NPhCOCH3)4 and nitriles were proposed. Trials of the benzonitrile, o-tolunitrile, and m-tolunitrile have been performed and characterized on the 2,2-trans [Rh2(NPhCOCH3)4] complex via NMR spectroscopy, IR spectroscopy, and X-ray crystallography.
38
Suwa, Noriyuki. "Quelques résultats sur la cohomologie de Rham et la cohomologie étale des variétés de caractéristique." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb376013849.
Повний текст джерела
39
Suwa, Noriyuki. "Quelques résultats sur la cohomologie de De Rham et la cohomologie étale des variétés de caractéristique p ≠ 0." Paris 11, 1986. http://www.theses.fr/1986PA112167.
Повний текст джерелаАнотація:
Cette thèse comprend trois articles: 1) la cohomologie de de Rham des surfaces algébriques avec q=p::(a) en car. P, 2) sur la formule de Deuring Safarevic et un résultat de Nakjima, 3) sur l'image de l'application d'Abel-Jacobi de Bloch. On étudie diverses cohomologies - cohomologie de de rham, cohomologie cristalline, cohomologie étale p-adique et cohomologie étale l-adique - de variétés en caractéristique p non=0. Dans le premier article, on calcule les dimensions des groupes de cohomologie de de Rham et les nombres de Hodge pour les surfaces x lisses projectives avec q(x)=-p::(a)(x) en caractéristique p non=0, ou q(x) est l'irrégularité de x et p::(a)(x) le genre arithmétique de x. Comme application, on donne une preuve du critère de rationalité de Castelnuovo en caractéristique p non=0. Dans le deuxième article, on donne une autre démonstration de certains résultats de Nakajima sur la structure, comme g-modules de certains groupes de cohomologie associes aux courbes en caractéristique p non=0, sur lesquelles agit un p-groupe g. Dans le dernier article, on s'intéresse à l'image du groupe des cycles algébriques d'une variété, algébriquement équivalents à 0, par l'application d'Abel-Jacobi l-adique définie par Bloch. On montre que cette image est engendrée par les images des correspondances algébriques et en déduit une condition nécessaire pour la surjectivité de l'application d'Abel-Jacobi. On donne quelques exemples où l'application d'Abel-Jacobi est surjective. Par ailleurs, on présente des variantes algébriques et une autre preuve d'un théorème de Griffiths et étudie les pentes de la variété abélienne de Murre en caractéristique p non=0.
40
Eklund, Elisabet, and Eva Johansson. "Arbetskravsanalyser av arbetsuppgifter i Hälsans trädgård i Linköping utifrån The Revised Handbook for Analyzing Jobs (RHAJ)." Thesis, Linköping University, Department of Neuroscience and Locomotion, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-7917.
Повний текст джерелаАнотація:
Hälsans Trädgård is a project which is going to start in Gamla Linköping, Sweden. The authors were commissioned by Arbetslivsresurs, a company working with work rehabilitation, to select, define and make job analyses on five work tasks at Hälsans Trädgård in Gamla Linköping. A job analysis means an analysis of the demands the job make of the individual. The job analysis used in this study is called The Revised Handbook for Analyzing Jobs (RHAJ) and is from the US Department of Labor (DOL). As RHAJ is an American instrument, the authors produced a form where the concepts are translated into Swedish to make the analysis easier. The areas that were analyzed according to the RHAJ were: worker functions, general educational development, specific vocational preparation, aptitudes, temperaments, and physical demands and environmental conditions. The five work tasks that were analyzed at Hälsans Trädgård were: “Raking”, “Planting flowers”, “Weeding”, “Shoveling snow” and “Portraying Lisa”. The result shows that the five work tasks make low demands on the individual and that none of the tasks demand mathematical development. The task “Portraying Lisa” was the task which, in most cases, made the most demands on the individual. The discussion proposes how the work tasks can be more complex. The authors suggest investigations that test the RHAJ for validity and reliability and that the RHAJ in full be translated into Swedish and tested under Swedish circumstances in future research.
41
Scheider, René Achim [Verfasser], and Guido [Akademischer Betreuer] Kings. "The de Rham realization of the elliptic polylogarithm in families / René Achim Scheider. Betreuer: Guido Kings." Regensburg : Universitätsbibliothek Regensburg, 2014. http://d-nb.info/105419159X/34.
Повний текст джерела
42
Swain, Kendra Lynn. "Two novel transporters essential for the reassimilation of cholic acid metabolites excreted by Rhodococcus jostii RHA1." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/37017.
Повний текст джерелаАнотація:
In this study, I investigated two novel transporters associated with cholic acid catabolism in Rhodococcus jostii RHA1. Reverse-transcriptase quantitative-PCR indicated that an ABC transporter was upregulated 16.7-fold and an MFS transporter was upregulated 174-fold during the exponential phase of growth on cholic acid compared to pyruvate. With gene knockout analysis, I discovered that these transporters are required for the reassimilation of distinct cholic acid metabolites. The ABC transporter, encoded by the camABCD genes, was essential for uptake of 12-hydroxy-9-oxo-1,2,3,4,10,19,23,24-octanorcholan-5,22-dioic acid and 12-hydroxy-9-oxo-1,2,3,4,10,19,23,24-octanorchol-6-en-5,22-dioic acid. The MFS transporter, encoded by the camM gene, was essential for uptake of 3,7,12-trihydroxy-9-oxo-9,10-seco-23,24-bisnorchola-1,3,5(10)-trien-22-oic acid. The uptake of these metabolites is necessary for maximal growth on cholic acid: the ΔcamB mutant, lacking the permease component of the ABC transporter, and the ΔcamM mutant, lacking the MFS transporter, only achieved 74% and 77%, respectively, of the final wild type protein yield. These metabolites differ from previously reported cholic acid metabolites from Proteobacteria in that they retain an isopropionyl side chain at the C17 position. This study is the first to demonstrate the function of putative cholic acid genes through targeted mutagenesis, as well as the first to provide evidence for the requirement for transporters involved in cholic acid metabolite uptake. This work highlights the importance and complexity of transport processes associated with bacterial catabolism and may contribute to industrial applications involving bacterial steroid transformation.
43
Khalil, Roya, and roya khalil@gmail com. "Impact of the surface chemistry of rice hull ash on the properties of its composites with polypropylene." RMIT University. Civil & Chemical Engineering, 2008. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20090219.115140.
Повний текст джерелаАнотація:
Rice hull ash (RHA) is a by-product of the rice industry. RHA is produced when rice hulls are incinerated, for example, when they are used to power steam engines in rice milling plants. Typically, this ash is disposed of in landfill sites, which may cause environmental problems. RHA has a naturally occurring silica content that is very high, ranging from 95 to 98%. This high silica content makes RHA a potential filler for polymer products. The aim of this project was to investigate the application of RHA as a filler in polypropylene. The study used a systematic approach to characterising the RHA physiochemical properties and comparing these to another commercially available grade of silica filler. The processing conditions for mixing RHA with Polypropylene (PP) were optimised to obtain the maximum tensile modulus value. Attempts were made to improve the interaction of RHA and PP by treating the RHA surface with silane coupling agents and adding functionalised polymers to the composite. Mechanical, rheological and morphological properties of the non-silanated, silanated and coupled composites were characterised and compared to determine their structure -property relationships. Rice hull ash (RHA) has a similar chemical structure to other silicas. Like any metals and metalloids, the surface of RHA contains -OH functional groups but these are very limited in quantity. RHA and PP composites have a wide processing window and the optimised processing conditions in a small batch mixer are 12 minutes, 60 rpm and 180°C. Addition of RHA into PP increases the modulus but decreases the tensile strength of the composites, attributed to poor compatibility between RHA and PP, as RHA is hydrophilic and PP is hydrophobic. The optimum loading of RHA is 20wt%. To improve the RHA and PP composites, 2 grades of silane and maleic anhydride grafted PP (MAPP) is used. Silane treated RHA composites have improved mechanical properties, especially tensile strength, attributed to enhanced interfacial interaction. The optimum is 1.5wt% for APS and 2.wt% for MPS in this system. The optimum MAPP concentration in this system is 3wt%. Properties of the RHA / PP composites show modest improvements compared to PP. The properties are not sufficient to make RHA a commercially attractive reinforcing filler for PP for high performance composite. It has potential for a cost reduction filler for low end application composites.
44
Rainville, Sirois Julien. "Investigation de la spécificité nucléotidique de l’hélicase DHX36 lors du déroulement de structures d’ARN G-quadruplex." Mémoire, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/9885.
Повний текст джерелаАнотація:
La déstabilisation des structures G-quadruplex au niveau des acides nucléiques a des répercussions physiologiques importantes. L’accentuation des connaissances concernant les processus cellulaires associés au métabolisme des structures des G4 est primordiale. Une panoplie d’hélicases à G4 est impliquée dans le métabolisme des structures G4, notamment l’hélicase humaine DHX36. Il a été déterminé au préalable par certains groupes de recherche que l’hélicase DHX36 se lie à son substrat l’ARN G4 et utilise des nucléosides triphosphates afin de catalyser le dépliement de la structure G-quadruplex. Toutefois, l’interaction avec l’ARN G4 a été sommairement caractérisée et la spécificité nucléotidique n’a toujours pas été évaluée. Ainsi, nous avons décidé d’approfondir les connaissances du mécanisme de dépliement de la structure du G4 d’ARN par l’hélicase DHX36. Notamment, en évaluant la thermodynamique de l’interaction entre l’hélicase et l’ARN G4 afin de révéler particulièrement l’efficacité de liaison mais également en évaluant la spécificité nucléotidique de l’hélicase DHX36 afin d’effectuer le dépliement de l’ARN G4. La combinaison des analogues de nucléotides et le modèle structural permettent de révéler les caractéristiques structurales et fonctionnelles de l’interaction entre l’hélicase humaine DHX36 et l’ATP. Nos analyses permettent de constater que l’enzyme DHX36 est en mesure d’utiliser autant l’ATP que GTP afin de dérouler les structures G4 d’ARN ayant, par contre, une spécificité accrue pour la molécule d’ATP.
45
LeBlanc, Justin Christian. "Mechanisms of survival against desiccation and associated stresses of the soil-residing actinomycete Rhodococcus jostii strain RHA1." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/51756.
Повний текст джерелаАнотація:
Actinomycetes are an abundant bacterial group in soil, with a critical role in the decomposition of organic matter. Rhodococcus jostii strain RHA1 is of particular interest to the field of bioremediation because it can degrade a broad range of organic compounds, both natural and xenobiotic. Understanding the factors contributing to the desiccation resistance of RHA1 will enrich our basic knowledge of this common soil stress and may help advance bioremediation technologies for contaminated soils subject to droughts.
Here I report the first transcriptomic analysis of a Gram-positive bacterium during desiccation. Filtered RHA1 cells incubated at either low relative humidity, as an air-drying treatment, or high relative humidity, as a control, were transcriptionally profiled over a comprehensive time series. Also, the morphology of RHA1 cells was characterized by cryofixation scanning electron microscopy during each treatment. Desiccation resulted in a transcriptional response of 819 differentially regulated genes, 8-times more than in the control. Included among the highly up-regulated desiccation-specific genes was dps1 (induced 33-fold), encoding an oxidative stress protection protein which has not previously been directly associated with desiccation, as well as sigF3 (induced 58-fold), encoding a sigma factor possibly involved in the regulatory response to desiccation.
RHA1 mutants with dps1 or both of its dps homologs deleted were challenged with oxidative stressors under a variety of assay conditions. The mutants were also exposed to physiological stresses that generate reactive oxygen species intracellularly, including desiccation. In all cases, the dps− mutants did not have impaired oxidative stress resistance – a novel finding with respect to bacterial dps-null strains. Additionally, the RHA1 dps-null mutant did not have substantially lower survival compared to the wild type when challenged with metal toxicity or DNA-damaging agents or when they were cocultured through multiple cycles of starvation. Nevertheless, expression of RHA1 dps1 in an Escherichia coli dps– mutant restored its hydrogen peroxide resistance. Purified RHA1 Dps1 was shown to have ferroxidase activity and thereby to protect DNA from oxidative damage. The general insensitivity of the RHA1 dps-null mutant may be representative of a large group of Actinobacteria for which robust oxidative stress tolerance is an important adaptation.Science, Faculty of
Microbiology and Immunology, Department of
Graduate
46
Magniez, Jocelyn. "Etude de la bornitude des transformées de Riesz sur Lp via le Laplacien de Hodge-de Rham." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0161/document.
Повний текст джерелаАнотація:
Cette thèse comporte deux sujets d’étude mêlés. Le premier concerne l’étude de la bornitude sur Lp de la transformée de Riesz d∆-½ , où ∆ désigne l’opérateur de Laplace-Beltrami (positif). Le second traite de la régularité de Sobolev W1,p de la solution de l’équation de la chaleur non perturbée. Nous établissons également quelques résultats concernant les transformées de Riesz d’opérateurs de Schrödinger avec un potentiel comportant éventuellement une partie négative.Dans le cadre de ces travaux, nous nous plaçons sur une variété riemanienne (M, g) complète et non compacte. Nous supposons que M satisfait la propriété de doublement de volume (de constante de doublement égale à D) ainsi qu’une estimation gaussienne supérieure pour son noyau de la chaleur (celui associé à l’opérateur ∆). Nous travaillons avec le laplacien de Hodge-de Rham, noté ∆, agissant sur les 1-formes différentielles de M. En s’appuyant sur la formule de Bochner, liant ∆ à la courbure de Ricci de M, nous assimilons ∆ à un opérateur de Schrödinger à valeurs vectorielles. C’est un argument de dualité, basé sur une formule de commutation algébrique, qui lie l’étude de ∆ à celle de ∆. [...]This thesis has two main parts. The first one deals with the study of the boundedness on Lp of the Riesz transform d∆-½ , where ∆ denotes the nonnegative Laplace-Beltrami operator. The second one deals with the Sobolev regularity W1,p of the solution of the heat equation. We also establish some results on the Riesz transforms of Schrödinger operators with a potential possibly having a negative part. In this work, we consider a complete non-compact Riemannian manifold (M, g). We assume that M satisfies the volume doubling property (with doubling constant equal to D) as well as a Gaussian upper estimate for its heat kernel associated to the operator ∆. We work with the Hodge-de Rham Laplacian ∆, acting on 1-differential forms of M. With the Bochner formula, linking ∆to the Ricci curvature of M, we see ∆ has a vector-valued Schrödinger operator. It is a duality argument, based on a commutation formula, which links the study of ∆to the one of ∆. [...]
47
Wittmann, Astrid [Verfasser], and Cord-Michael [Akademischer Betreuer] Becker. "Etablierung eines Reportergenassays zur Untersuchung des Promotors der GABAC-Rezeptoruntereinheit rho2 / Astrid Wittmann. Betreuer: Cord-Michael Becker." Erlangen : Universitätsbibliothek der Universität Erlangen-Nürnberg, 2013. http://d-nb.info/1031558632/34.
Повний текст джерела
48
Ketron, Megan. "Characterization of Complexes of 2,2-cis [Rh2(N{C6H5}COCH3)4] with Nitriles." Digital Commons @ East Tennessee State University, 2013. https://dc.etsu.edu/honors/83.
Повний текст джерелаАнотація:
Complexes of 2,2-cis [Rh2(N{C6H5}COCH3)4] bound to benzonitrile, ortho-tolunitrile, and meta-tolunitrile were synthesized and characterized using X-ray crystallography, IR spectroscopy, and proton NMR. The crystal structures of 2,2-cis [Rh2(N{C6H5}COCH3)4]•2NCC6H5, 2,2-cis [Rh2(N{C6H5}COCH3)4]•2NC{2-CH3}C6H4, and 2,2-cis [Rh2(N{C6H5}COCH3)4]•2NC{3-CH3}C6H4 were solved using a Rigaku Mercury375R/M CCD XtaLab Mini Diffractometer. The 2,2-cis [Rh2(N{C6H5}COCH3)4]•2NCC6H5 complex had unit cell dimensions of a=10.2115(7) Å, b=9.9667(7) Å, c=21.367(2) Å, and β=100.971(7)° with a P21/n space group. The 2,2-cis [Rh2(N{C6H5}COCH3)4]•2NC{2-CH3}C6H4 complex had unit cell dimensions of a=10.3625(8) Å, b=10.0489(7) Å, c=21.611(2) Å, and β=100.868(7)° with a P21/n space group. The 2,2-cis [Rh2(N{C6H5}COCH3)4]•2NC{3-CH3}C6H4 complex had unit cell dimensions of a=10.849(3) Å, b=11.530(3) Å, c=12.259(3) Å, α=117.562(8)°, β=103.061(7)°, and γ=101.562(7)° with a P-1 space group. Each rhodium atom had approximate octahedral coordination and was bound to another rhodium atom along with two equatorially bound nitrogens and two equatorially bound oxygens and one axially bound nitrogen that was a part of the nitrile.
49
Dogan, Ugur. "Overconvergent Frèchet Algebras in Rigid Analysis." Doctoral thesis, Humboldt-Universität zu Berlin, 2019. http://dx.doi.org/10.18452/20423.
Повний текст джерелаАнотація:
Wir fixeren einen Körper k, der bezüglich eines nicht-archimedischen Absolutbetrags vollständig ist. In Kapitel 1 konstruieren wir eine Algebra U bestehend aus überkonvergenten Funktionen. Sie ist eine Unteralgebra der Tate-Algebra, wobei mittels einer sogenannten Filterfunktion, eine zusätzliche Wachstumsbedingung an die Koeffizienten der Potenzreihen in U gestellt wird. In diesem Kontext beweisen wir das folgende Resultat: U ist ein Noetherscher, Jacobsonscher, faktorieller Integritätsbereich, der bezüglich der Norm vollständig ist, und jedes Ideal in U ist abgeschlossen in der induzierten Topologie. In Kapitel 2 definieren wir die Kategorie der NMK-Algebren als die Kategorie der Quotienten der U. Indem wir in der größeren Kategorie der Frèchet-Räume arbeiten, beweisen wir die Noethernormalisierung und untersuchen die Morphismen zwishen NMK-Algebren. Schließlich zeigen wir, dass die Kategorie der NMK-Algebren abgeschlossen ist unter vervollständigten Tersorprodukten. In Kapitel 3 untersuchen wir geometrische Aspekte der Algebren U nämlich Eigenschaften der maximalen Ideale und die Regularität von U. Abschließend zeigen wir, dass für jedes U der assoziierte algebraische v exact in positiven Graden ist.We fix a complete field k with respect to a non-Archimedean absolute value. In Chapter 1, we build the overconvergent function algebra U to be the subalgebra of the Tate algebra by putting a growth condition on the coefficients of the power series using a decreasing function which we call a filter function (satisfying certain conditions). With this setting we prove the following result: U is a Noetherian, Jacobson, unique factorization domain and it is complete with respect to the norm on it, moreover every ideal of U is closed with respect to the induced topology. In Chapter 2, we define a category of NMK-algebras as the category of all quotients of U. Working in the larger category of Frèchet spaces, we establish Noether normalization and investigate the morphisms between NMK-algebras. Finally, we show that the category of NMK-algebras is closed under completed tensor products. We investigate certain geometric aspects of the algebra U in Chapter 3, such as the properties of maximal ideals and regularity of U. Further, we show that for each U the associated algebraic de Rham complex is exact in positive degrees.
50
Chaves, Miriam Gonçalves de. "Crescimento e sobrevivência do recombinante Rhodococcus sp. isolado RHA1 (fcb) em turfa comercial e solo contaminado com PCB." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/91/91131/tde-06012006-134726/.
Повний текст джерелаАнотація:
O grupo de organoclorados, Bifenilas Policloradas (PCBs) é de difícil degradação e persistente no meio ambiente, tendo sido associado a diversos problemas nos organismos devido ao potencial toxicológico. Biodegradação constitui uma ferramenta eficaz e barata para remoção destes contaminantes do ambiente. O isolado RHA1 (fcb) de Rhodococcus sp. foi geneticamente construído com a introdução do operon de degradação hidrolítica de 4-clorobenzoato (fcb) para evitar a formação de produtos tóxicos durante a degradação de ácidos clorobenzóicos. Com o intuito de se obter informações sobre o processo adaptativo do recombinante Rhodococcus sp. isolado RHA1 (fcb) em substratos contendo PCBs, foram feitos dois ensaios avaliando-se a sobrevivência e o crescimento deste isolado. Rhodococcus sp. isolado RHA1 (fcb) foi inoculado (104 células.g-1) em substrato turfoso previamente irradiado a 50 KGy, contendo ou não 200 mg.Kg-1 de bifenilo. Em outro ensaio, além do recombinante, as bactérias Escherichia coli e Arthrobacter sp. foram inoculados em sedimento coletado na região do Estuário de Santos, contendo PHAs e PCBs, também irradiado (50 KGy). O crescimento das bactérias em ambos os substratos foi monitorado através de contagem de Unidades Formadoras de Colônias (UFCs). Algumas colônias eram selecionadas aleatoriamente para extração de DNA, detecção do operon fcb através de amplificação por PCR e sequenciamento do gene 16S rRNA. Aumento no número de UFCs nos tratamentos inoculados com o recombinante foi observado até 150 dias no ensaio com substrato turfoso e 70 dias na amostra ambiental. Entretanto, houve queda no número de UFCs após os 10 dias nos tratamentos inoculados com E. coli e Arthrobacter sp. Os genes fcbA e fcbB do operon fcb foram detectados nas colônias isoladas dos tratamentos inoculados com o isolado RHA1 (fcb) em ambos os substratos. A análise das seqüências pertencentes às colônias isoladas do tratamento inoculado com o isolado RHA1 (fcb) feita através de BLAST nos sites do NCBI e Ribossomal Database Project, apresentou 99% de identidade com a seqüência do gene ribossomal 16S de Rhodococcus sp. isolado ZC3 (AM076672.1). Somente as seqüências referentes ao tratamento inoculado com E. coli foram analisadas, as quais apresentaram 99% de identidade com a seqüência do gene ribossomal 16S de E. coli isolado K-12 MG 1655 (U00096.2). Estes resultados sugerem que Rhodococcus sp. isolado RHA1 (fcb) cresce na turfa irradiada (até 150 dias) na presença e ausência de PCB e nesta amostra de sedimento irradiada (até 70 dias), com aparente estabilidade do operon fcb durante este período e nestas condições. A possível presença dos genes fcbB e fcbA em bactérias nativas crescidas em meio K1 com ácido 4- clorobenzóico isoladas do sedimento antes da irradiação, sugere a presença de bactérias do local com potencial biodegradador deste composto.The group of organochlorates Biphenyl Polychlorates (PCBs) is of difficult degradation and persistent in the environment, being associated to several problems in the organisms due to its toxicological potential. The isolate RHA1 (fcb) from Rhodococcus sp. was genetically built with the introduction of the operon of hydrolytic degradation 4-chlorobenzoate (fcb) to avoid the formation of toxic products during the degradation of chlorobenzoic acids. In order to obtain information about the adaptative process of the recombinant Rhodococcus sp. isolate RHA1 (fcb) in substrates containing PCBs, two essays were made evaluating the survival and growth of this isolate. Rhodococcus sp. isolate RHA1 (fcb) was inoculated (104 cells.g-1) in peat substrate previously irradiated with 50 kGy, with and without 200 mg.kg-1 of biphenyl. In another essay, besides of the recombinant, the bacteria Escherichia coli and Arthrobacter sp. were inoculated in soil, also irradiated (50 kGy), from the Estuário de Santos region containing PHAs and PCBs. The growth of the bacteria in both substrates was monitorated counting the Colony Forming Units (CFUs). Some colonies were selected randomly for DNA extraction, fcb operon detection through PCR, and sequencing of the 16S rRNA gene. Rising in the number of CFUs in the recombinant inoculated treatments was observed until 150 days in the essay with peat substrate, and until 70 days in the environmental sample. Nonetheless, there was a reduction in the number of CFUs after 10 days in the treatment inoculated with E. coli and Arthrobacter sp. The genes fcbA and fcbB from the operon fcb were detected in the isolated colonies of the treatments inoculated with the isolate RHA1 (fcb) in both substrates. The analysis of the sequences belonging to the colonies isolated from the treatment inoculated with the isolate RHA1 (fcb) through BLAST in the NCBI and Ribosomal Database Project sites showed 99% identity with the sequence of the gene 16S ribosomal from Rhodococcus sp. isolate ZC-3 (AM076672.1). Only the sequences referring to the treatment inoculated with E. coli were analyzed, which showed 99% identity with the sequence of the 16S ribosomal gene from E. coli isolate K-12 MG 1655 (U00096.2). These results suggest that Rhodococcus sp. isolate RHA1 (fcb) grows in the peat irradiated (until 150 days), in the presence and absence of PCB and in this irradiated sediment sample (until 70 days), with apparent stability of the fcb operon during this period and in these conditions. The possible presence of the fcbA and fcbB genes in native bacteria grown in K1 medium with 4-chlorobenzoate acid isolated from sediment before irradiation suggests the presence of native bacteria with biodegradation potential of this compound.