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Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Chan, Kei-yuen, and 陳佳源. "Weyl group elements associated to conjugacy classes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45516200.

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Wright, Laurel D. "Autonomous replication of integrative and conjugative elements." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/106738.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Biology, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Mobile genetic elements facilitate movement of genes, including those conferring antibiotic resistance and other traits, between bacteria. Integrative and conjugative elements (ICEs), also known as conjugative transposons, are a large family of mobile genetic elements that can transfer between neighboring cells. ICEs are found integrated in the chromosome of their host bacterium, where they are transmitted to daughter cells by c

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3

Cury, Jean. "Evolutionary genomics of conjugative elements and integrons." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCB062/document.

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Haskett, Timothy L. "Discovery and characterisation of tripartite Integrative & Conjugative Elements." Thesis, Haskett, Timothy L. (2018) Discovery and characterisation of tripartite Integrative & Conjugative Elements. PhD thesis, Murdoch University, 2018. https://researchrepository.murdoch.edu.au/id/eprint/41086/.

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Bacterial integrative & conjugative elements (ICEs) are chromosomally-integrated DNA islands that excise to form circular molecules capable of horizontal self-transmission via conjugation (cell-to-cell contact). Symbiosis ICEs, such as ICEMlSymR7A of Mesorhizobium loti, are a group of ICEs that carry genes enabling rhizobial bacteria to engage in N2-fixing symbioses with leguminous plants. Transfer of symbiosis ICEs can convert non-symbiotic rhizobia into legume symbionts in a single evolutionary step. In this thesis, a novel form of “tripartite” ICE (ICE3) is reported that exists as three

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5

Refsnæs, Runar Heggelien. "Matrix-Free Conjugate Gradient Methods for Finite Element Simulations on GPUs." Thesis, Norges Teknisk-Naturvitenskaplige Universitet, Institutt for fysikk, 2010. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-10826.

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<p>A block-structured approach for solving 2-dimensional finite element approximations of the Poisson equation on graphics processing units(GPUs) is developed. Linear triangular elements are used, and a matrix-free version of the conjugate gradient method is utilized for solving test problems with over 30 million elements. A speedup of 24 is achieved on a NVIDIA Tesla C1060 GPU when compared to a serial CPU version of the same solution approach, and a comparison is made with previous GPU implementations of the same problem.</p>

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Goktolga, Mustafa Ugur. "Simulation Of Conjugate Heat Transfer Problems Using Least Squares Finite Element Method." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614787/index.pdf.

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In this thesis study, a least-squares finite element method (LSFEM) based conjugate heat transfer solver was developed. In the mentioned solver, fluid flow and heat transfer computations were performed separately. This means that the calculated velocity values in the flow calculation part were exported to the heat transfer part to be used in the convective part of the energy equation. Incompressible Navier-Stokes equations were used in the flow simulations. In conjugate heat transfer computations, it is required to calculate the heat transfer in both flow field and solid region. In this study,

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7

Wang, Meiqiu. "Support graph preconditioning for elliptic finite element problems." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-3135.

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8

fox, Valeria. "Mobile genetic elements carrying stress response systems, antibiotic resistance determinants, and catabolic pathways." Doctoral thesis, Università di Siena, 2021. http://hdl.handle.net/11365/1159250.

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In the present thesis, I studied the activation of an SOS-like response in Streptococcus pneumoniae encoded by the Streptococcus pyogenes prophage φ1207.3. This system leads to the temporary activation of an hypermutable phenotype, which resulted in increased survival and increased mutation rate upon exposure to mitomycin C or UV-C light. Then, a different type of stress response, the Envelope Stress Response (ESR), was exploited as a strategy for sensitization of Escherichia coli to several antibiotics, by disbalancing five pathways, namely σE, Cpx, Rcs, Bae, and Psp. Disbalancing the Psp pat

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9

Pester, M., and S. Rjasanow. "A parallel version of the preconditioned conjugate gradient method for boundary element equations." Universitätsbibliothek Chemnitz, 1998. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-199800455.

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The parallel version of precondition techniques is developed for matrices arising from the Galerkin boundary element method for two-dimensional domains with Dirichlet boundary conditions. Results were obtained for implementations on a transputer network as well as on an nCUBE-2 parallel computer showing that iterative solution methods are very well suited for a MIMD computer. A comparison of numerical results for iterative and direct solution methods is presented and underlines the superiority of iterative methods for large systems.

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10

BoÌˆltner, Dietmar. "Genomic analysis of the conjugative integrating element R391 from Providencia rettgeri." Thesis, University of Essex, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268707.

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11

Stagg, Georgina. "Creation and characterisation of genetically-marked Mesorhizobium integrative and conjugative elements." Thesis, Stagg, Georgina (2018) Creation and characterisation of genetically-marked Mesorhizobium integrative and conjugative elements. Honours thesis, Murdoch University, 2018. https://researchrepository.murdoch.edu.au/id/eprint/42888/.

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Rhizobia are soil-dwelling bacteria capable of forming symbiotic associations with legumes, where they reduce atmospheric dinitrogen (N2) into ammonia (NH3), providing the host plant with a bioavailable nitrogen source. For rhizobia in the genus Mesorhizobium, genes essential to the establishment (nod) and maintenance of nitrogen fixing-legume symbioses (nif and fix) are chromosomally-encoded on mobile segments of DNA known as symbiosis integrative and conjugative elements (ICEs). Symbiosis ICEs are capable of excising from the host chromosome and transferring to a recipient ICE-free cell via

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12

Takuya, Matsumoto. "Development of Novel Conjugated Compounds Based on Characteristics of Gallium Element." 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/199329.

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SANTORO, FRANCESCO. "Functional characterization of the pneumococcal Integrative Conjugative Element Tn5253." Doctoral thesis, Università di Siena, 2017. http://hdl.handle.net/11365/1005925.

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Integrative conjugative elements (ICEs) are responsible for pneumococcal genome evolution and more particularly for virulence and drug resistance acquisition. During conjugation, ICEs transfer from a donor cell containing the genetic element to a recipient cell lacking it. ICEs insert into the bacterial genome, excise from it and form a covalently closed circular intermediate which can integrate in a different genomic site and/or can integrate in a new genome upon conjugative transfer. Tn5253 is a composite ICE of Streptococcus pneumoniae conferring resistance to tetracycline and chloramphe

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Bot, Radu Ioan. "Duality and optimality in multiobjective optimization." Doctoral thesis, Universitätsbibliothek Chemnitz, 2003. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200300842.

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The aim of this work is to make some investigations concerning duality for multiobjective optimization problems. In order to do this we study first the duality for scalar optimization problems by using the conjugacy approach. This allows us to attach three different dual problems to a primal one. We examine the relations between the optimal objective values of the duals and verify, under some appropriate assumptions, the existence of strong duality. Closely related to the strong duality we derive the optimality conditions for each of these three duals. By means of these considerations, we stud

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15

Farzand, Robeena. "Occurrence and roles of two integrative and conjugative elements in Klebsiella pneumoniae." Thesis, University of Leicester, 2017. http://hdl.handle.net/2381/40665.

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The genome of Klebsiella pneumoniae HS11286 carries two integrative and conjugative elements (ICEs), ICEKpnHS-1 and ICEKpnHS-2; the former belongs to the ICEKp1 family and the latter was unexplored. This study was designed to further characterise the two ICEs, and investigate their prevalence in local clinical K. pneumoniae isolates. Sequence analysis showed that ICEKpnHS-2 belonged to the subfamily of PAPI elements with XerC-like integrases and PCR screening revealed that ICEKpnHS-1 associated elements were more (30%) prevalent in local isolates compared to ICEKpnHS-2 (12.5%). Contributions o

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16

Silieti, Mahmood. "INVERSE BOUNDARY ELEMENT/GENETIC ALGORITHM METHOD FOR RECONSTRUCTION O." Doctoral diss., University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3325.

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A methodology is formulated for the solution of the inverse problem concerned with the reconstruction of multi-dimensional heat fluxes for film cooling applications. The motivation for this study is the characterization of complex thermal conditions in industrial applications such as those encountered in film cooled turbomachinery components. The heat conduction problem in the metal endwall/shroud is solved using the boundary element method (bem), and the inverse problem is solved using a genetic algorithm (ga). Thermal conditions are overspecified at exposed surfaces amenable to measurement,

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17

Löf, Henrik. "Iterative and Adaptive PDE Solvers for Shared Memory Architectures." Doctoral thesis, Uppsala universitet, Avdelningen för teknisk databehandling, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-7136.

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Scientific computing is used frequently in an increasing number of disciplines to accelerate scientific discovery. Many such computing problems involve the numerical solution of partial differential equations (PDE). In this thesis we explore and develop methodology for high-performance implementations of PDE solvers for shared-memory multiprocessor architectures. We consider three realistic PDE settings: solution of the Maxwell equations in 3D using an unstructured grid and the method of conjugate gradients, solution of the Poisson equation in 3D using a geometric multigrid method, and solutio

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18

Gupta, Radhika. "Support graph preconditioners for sparse linear systems." Thesis, Texas A&M University, 2004. http://hdl.handle.net/1969.1/1353.

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Elliptic partial differential equations that are used to model physical phenomena give rise to large sparse linear systems. Such systems can be symmetric positive deﬁnite and can be solved by the preconditioned conjugate gradients method. In this thesis, we develop support graph preconditioners for symmetric positive deﬁnite matrices that arise from the ﬁnite element discretization of elliptic partial diﬀerential equations. An object oriented code is developed for the construction, integration and application of these preconditioners. Experimental results show that the advantages of support gr

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19

Carraro, Nicolas. "Analyse comparative de la dynamique de deux éléments intégratifs conjugatifs de streptococcus thermophilus." Thesis, Nancy 1, 2011. http://www.theses.fr/2011NAN10080/document.

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Les éléments intégratifs conjugatifs (ICE) sont des îlots génomiques qui codent leur excision du chromosome, leur transfert par conjugaison et leur intégration. Ils présentent une organisation modulaire, chaque module incluant tous les gènes nécessaires pour conférer une fonction biologique. Ce travail a porté sur l'étude de la régulation ainsi que les modalités de transfert et de maintien d'ICESt1 et ICESt3, deux ICE de Streptococcus thermophilus présentant une région core étroitement apparentée et une région variable non apparentée. Les résultats obtenus ont montré que, bien qu'ICESt3 s'exci

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20

Mucha, Neil. "Catalytic Main Group Element Bond Formation Reactions Toward the Preparation of Conjugated Materials." ScholarWorks @ UVM, 2015. http://scholarworks.uvm.edu/graddis/469.

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Polymers incorporating main group elements offer different and interesting properties compared to their all carbon analogues. For example, π-conjugated polymers incorporating phosphorus in the main chain of the polymer have generated interest due to their unique thermal and electronic properties, which primarily result from delocalization of the phosphorous lone pair within aromatic units. Similarly, interest in polysilanes stems from conductivity resulting from σ electron delocalization, though current methods of preparation for both of these types of materials are lacking. In this dissertati

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21

Harden, Mark Michael Jr. "Interactions between an integrative and conjugative element and its bacterial host." Thesis, Massachusetts Institute of Technology, 2021. https://hdl.handle.net/1721.1/130662.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Biology, February, 2021<br>Cataloged from the official PDF of thesis.<br>Includes bibliographical references.<br>Conjugative elements are mobile genetic elements that can transfer from a donor bacterium to a recipient via an element-encoded type IV secretion system. Integrative and conjugative elements (ICEs) are an abundant class of conjugative element. ICEs are typically integrated into the bacterial host chromosome, but under certain conditions, or stochastically, they can excise from the chromosome and transfer to a recip

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22

Robinson, Esther Rhiannon. "Conjugative transfer and phylogeny of an antibiotic resistant haemophilus element, ICEHin1056." Thesis, University of Oxford, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.572683.

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Antibiotic resistance in bacteria is a growing threat to global health. Many of the genes responsible for resistance are carried on mobile genetic elements which can be transferred laterally between strains and species. The most important of these are conjugative and mobilisable elements including plasmids and integrating and conjugating elements, ICEs. Haemophi/us influenzae is an important human pathogen, which was first identified as carrying antibiotic resistance genes in the 1970s. Much of this resistance is encoded by ICEHin1056, which is present in H. influenzae strains worldwide. The a

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23

Figueiredo, Ana Maria Gontijo. "Processo adaptativo R-H global conjugado com método multimalha para elementos finitos." Universidade Federal de Minas Gerais, 1992. http://hdl.handle.net/1843/PASA-8ACHBQ.

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This work describes the implementation and evaluation of a global R-H adaptive process for plane problems in elasticity. The generated linear system is solved using a Multigrid algorithm, taking full advantage of the similarity of the data structure generated during refinement with the one required by the solver. The method was implemented using the System for Finite Element Software Development (SDP). Three problems were analysed and used for validation of the proposed algorithm, comparision with Gauss and Gauss-Seidel, and acessing the sensibility to parameter change and mesh irregularity. O

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Priem, Jessica. "Main Group Elements Supported by pi-Conjugated, Nitrogen-Rich Ligand Frameworks and the Catalytic Formation of Guanidines." Thesis, University of Ottawa (Canada), 2010. http://hdl.handle.net/10393/28656.

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This thesis investigated the structure and reactivity of group 13 elements boron, aluminum and gallium supported by nitrogen rich ligand systems. The majority of this work deals with N,N',N"-trisubstituted guanidinate ligands and N,N'-disubstituted-1,8-diaminonaphthalene dianionic ligand frameworks. New methods for the catalytic formation of guanidines have also been explored. Chapter 1 outlines the basics of using nitrogen rich compounds as ligands. This includes the introduction of guanidinates as supporting ligands and the description of using a rigid backbone system such as an N,N'-disubst

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Ferraz, Paola Cunha 1988. "Implementação de um algoritmo multi-escala para sistemas de equações lineares de grande porte mal condicionados provenientes da discretização de problemas elípticos em dinâmica de fluidos em meios porosos." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/307022.

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Orientador: Eduardo Cardoso de Abreu<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Matemática Estatística e Computação Científica<br>Made available in DSpace on 2018-08-26T22:28:13Z (GMT). No. of bitstreams: 1 Ferraz_PaolaCunha_M.pdf: 6535346 bytes, checksum: 5f9c9ba53cd3e63fc60c09c90ad2c625 (MD5) Previous issue date: 2015<br>Resumo: O foco deste trabalho é aproximação numérica de problemas envolvendo equações diferenciais parciais (EDPs), de natureza elíptica, no contexto de aplicações em dinâmica de fluidos em meios porosos. Especificamente, a dissertação pret

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26

Luckshetty, Harish Kumar. "Space-Time Finite Element Analysis on Graphics Processing Unit Computing Platform." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1331296560.

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Yeo, Hyeonuk. "Synthesis of Optical Materials Based on Element-Blocks and Their Properties." 京都大学 (Kyoto University), 2017. http://hdl.handle.net/2433/225317.

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Elamin, Abdel Rahman Elias. "Molecular epidemiological studies of a conjugative antibiotic resistance element found in haemophilus species." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.509925.

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Almeida, Valério da Silva. "Uma adaptação do MEF para análise em multicomputadores: aplicações em alguns modelos estruturais." Universidade de São Paulo, 1999. http://www.teses.usp.br/teses/disponiveis/18/18134/tde-06122017-140613/.

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Neste trabalho, apresenta-se uma adaptação dos procedimentos utilizados nos códigos computacionais seqüenciais advindos do MEF, para utilizá-los em multicomputadores. Desenvolve-se uma rotina para a montagem do sistema linear particionado entre os diversos processadores. Resolve-se o sistema de equações lineares geradas mediante a rotina do PIM (Parallel Iterative Method). São feitas adaptações deste pacote para se aproveitar as características comuns do sistema linear gerado pelo MEF: esparsidade e simetria. A técnica de resolução do sistema em paralelo é otimizada com o uso de dois tipos de

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Said, Jamal. "Simulation numerique d'ecoulements de fluides non newtoniens en configuration axisymetrique." Paris 6, 1988. http://www.theses.fr/1988PA066523.

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Simulation par une methode d'elements finis en employant un algorithme base sur la methode du lagrangien augmente avec projection. La non linearite est traitee localement et les problemes globaux que l'on resout sont lineaires

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Bazinet, Patrick R. "Diaminonaphthalene and guanidine as scaffolds for pi-conjugated amido ligands: Versatile supporting frameworks for transition and main group elements." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/29076.

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This work was launched with a desire to develop novel versatile amido ligands for transition and main group metals. Of utmost importance was building ligands capable of forming strong and robust metal-ligand interactions. Bidentate mono- and di-anionic amido ligands were targeted due to the advantageous effects of chelation. 1,8-Diaminonaphthalene (1,8-DAN) and guanidines were identified as target ligand platforms. The majority of this work deals with the preparation and use of 1,8-DAN based dianionic ligands for transition (Ta, Zn) and main group (B, Al, C, Ge, Sn) metals. The synthesis and r

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Avello, Monika M. M. (Monika Maria Masumi). "Characterization of an exclusion mechanism in an integrative and conjugative element in Bacillus subtilis." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/119980.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Biology, 2018.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references.<br>Horizontal gene transfer is the acquisition of new genetic material that can confer novel phenotypes to bacteria and contribute to their evolution. Conjugation is an important mechanism of horizontal gene transfer that involves the direct transfer of DNA between two cells and is mediated by mobile genetic elements encoding type IV secretion systems. Conjugative elements prevent redundant transfer by a mechanism known as exclusio

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Sakagami, Michiyasu. "Studies on the Construction of Novel d-π Conjugated Systems Reflection Unique Properties of Low-Coordinated Heavier Group 15 Elements". 京都大学 (Kyoto University), 2013. http://hdl.handle.net/2433/175138.

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Simões, Roberto Mac-Intyer. "Estudo experimental da transferência de calor conjugada convecção natural-condução em canal vertical com elementos protuberantes aquecidos." [s.n.], 2011. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263441.

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Orientador: Marcelo Moreira Ganzarolli<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-20T13:22:43Z (GMT). No. of bitstreams: 1 Simoes_RobertoMac-Intyer_M.pdf: 2139090 bytes, checksum: 0d40eb0587d86506df37c76ba2e02031 (MD5) Previous issue date: 2011<br>Resumo: Realizou-se uma análise experimental para estudar a transferência de calor conjugada convecção natural-condução em um canal vertical de placas paralelas contendo aquecedores bidimensionais protuberantes discretos distribuídos uniformemente sobre a su

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Dutton, Andrew William. "A finite element solution to conjugated heat transfer in tissue using magnetic resonance angiography to measure the in vitro velocity field." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186470.

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In this research a combined numerical and experimental system for tissue heat transfer analysis was developed. The goal was to develop an integrated set of tools for studying the problem of providing accurate temperature estimation for use in hyperthermia treatment planning in a clinical environment. The completed system combines 1) Magnetic Resonance Angiography (MRA) to non-destructively measure the velocity field in situ, 2) the Streamwisc Upwind Petrov-Galerkin finite element solution to the 3D steady state convective energy equation (CEE), 3) a medical image based automatic 3D mesh genera

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Rose, Marcus, Andreas Notzon, Maja Heitbaum, et al. "N-Heterocyclic carbene containing element organic frameworks as heterogeneous organocatalysts." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-138636.

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A bifunctional imidazolium linker was used for the production of highly crosslinked element organic frameworks by Suzuki-coupling with tetrafunctional boronic acids. The resulting porous materials are good heterogeneous organocatalysts in the N-heterocyclic carbene-catalyzed conjugated umpolung of α,β-unsaturated cinnamaldehyde<br>Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich

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Rose, Marcus, Andreas Notzon, Maja Heitbaum, et al. "N-Heterocyclic carbene containing element organic frameworks as heterogeneous organocatalysts." Royal Society of Chemistry, 2011. https://tud.qucosa.de/id/qucosa%3A27766.

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A bifunctional imidazolium linker was used for the production of highly crosslinked element organic frameworks by Suzuki-coupling with tetrafunctional boronic acids. The resulting porous materials are good heterogeneous organocatalysts in the N-heterocyclic carbene-catalyzed conjugated umpolung of α,β-unsaturated cinnamaldehyde.<br>Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.

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Баран, Ігор Олегович, та I. Baran. "Математичне моделювання температурного поля двошарового циліндра з з тонким включенням". Thesis, Тернопільський національний технічний університет ім. Івана Пулюя, 2011. http://elartu.tntu.edu.ua/handle/123456789/971.

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Boundary-value problem for elliptical equation with conjugate conditions of non-ideal contact is considered. Computing algorithms of the increased accuracy order of sampling for the problem under consideration basing on the finite element methods are constructed. The solution results of the models examples are indicated.<br>Розглянуто задачу, що описується еліптичним рівнянням з умовами спряження неідеального контакту та різними крайовими умовами. На основі методу скінчених елементів (МСЕ) побудовані обчислювальні алгоритми підвищеного порядку точності дискретизації задачі. Отримано результати

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Ito, Shunichiro. "Synthesis and Photophysical Properties of Functional Luminescent Materials Based on β-Diiminate Complexes Composed of Main-Group Metals". Doctoral thesis, Kyoto University, 2020. http://hdl.handle.net/2433/245840.

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京都大学<br>0048<br>新制・課程博士<br>博士(工学)<br>甲第22155号<br>工博第4659号<br>新制||工||1727(附属図書館)<br>京都大学大学院工学研究科高分子化学専攻<br>(主査)教授田中一生, 教授秋吉一成, 教授古賀毅<br>学位規則第4条第1項該当<br>Doctor of Philosophy (Engineering)<br>Kyoto University<br>DGAM

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Dahmane, Narimane. "Caractérisation des éléments intégratifs conjugatifs de la famille ICESt3 et des facteurs influençant leur mobilité." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0269/document.

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Les éléments intégratifs conjugatifs (ICE) sont des éléments génétiques mobiles se transférant horizontalement d’une bactérie à une autre. Les ICE sont porteurs de gènes adaptatifs pouvant significativement améliorer le fitness de la bactérie hôte et permettre son adaptation à de nouvelles niches écologiques. Lors de ces travaux, des ICE apparentés à ICESt3 ont été retrouvés chez la bactérie commensale et pathogène opportuniste Streptococcus salivarius. Les analyses in silico réalisées ont démontré la diversité des ICE de cette famille, notamment au niveau de leurs modules de recombinaison, de

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RAMIL, BOUABID. "Methode de galerkin avec elements finis et algorithmes rapides de type gradient conjugue generalise appliques a la resolution de l'equation integrale de la radiosite." Université Louis Pasteur (Strasbourg) (1971-2008), 2000. http://www.theses.fr/2000STR13040.

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La resolution de l'equation de la radiosite obtenue avec la methode galerkin est traditionnellement effectuee par l'algorithme de gauss - seidel, qui n'est pas proportionnelle par suite de son caractere recursif. Afin de depasser ces limitations pratiques, nous avons monte comment il est possible de resoudre l'equation de la radiosite a l'aide des algorithmes du type gradient conjugue generalise, qui sont non parametriques et robustes. Afin de simuler l'eclairement a l'interieur des batiments, nous avons propose une approche algorithmique originale qui resout localement cette equation. Il est

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Caillaud, Frédéric. "Contribution a la caracterisation du transposon navette conjugatif tn1545." Paris 7, 1987. http://www.theses.fr/1987PA077023.

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Tn1545 est un element transposable issu d'une souche de streptococcus pneumoniae et porteur de plusieurs genes de resistance (apha-3, ermam et tetm). Le gene alpha-3 a ete bien etudie et compare a ceux d'autres especes, suggerant des echanges entre bacteries a gram positif et bacteries a gram negatif. Tn1545 (23,5 kb) a ete cartographie et ses fragments de jonctions avec les cibles respectives sequencees. Une revue generale sur les transposons conjugatifs, une discussion sur les echanges intergamiques et sur un modele de transposition suivi par tn1545 sont proposes

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Polidoro, H. A. "Desenvolvimento de varetas elétricas com elemento resistivo de grafite sintético ou conjugado carbono/carbono para ensaios de simulação de transientes em reatores nucleares." Instituto Tecnológico de Aeronáutica, 1987. http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=1524.

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A utilização de varetas elétricas, diretas ou indiretas, é prática usual nos estudos dos problemas termo-hidráulicos em reatores nucleares. As varetas elétricas, fabricadas com elementos resistivos a base de ligas metálicas, encontram limitações quanto à sua utilização em temperaturas elevadas (acima de 1.000 C) e altos fluxos de calor superficial (250 W/cm2), devido à possibilidade de fusão do elemento resistivo. A utilização de ligas a base de platina e tântalo é uma solução técnica viável, porém, economicamente discutível. O grafite sintético e o conjugado carbono/carbono representam uma al

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Silva, Erico Correia da. "Paralelização de calculos de elementosfinitos utilizando programação orientada a objetos." [s.n.], 1997. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257960.

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Orientador: Philippe R. B. Devloo<br>Dissertação (mestrado) - Universidade Estadual Campinas, Faculdade de Engenharia Civil<br>Made available in DSpace on 2018-07-22T15:06:19Z (GMT). No. of bitstreams: 1 Silva_EricoCorreiada_M.pdf: 5032711 bytes, checksum: 4fe1436b0c7050e49f330ffc7bcc6e54 (MD5) Previous issue date: 1997<br>Resumo: Com o advento dos grandes computadores para processamento paralelo, veio a possibilidade de um aumento na dimensão dos problemas viáveis e diminuição do tempo de resposta para simulações por elementos finitos. Este trabalho trata da paralelização de um ambiente ori

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Eidam, Christopher [Verfasser]. "Molecular analysis of multiresistant Mannheimia haemolytica isolates with particular reference to novel macrolide resistance genes and variants of the integrative and conjugative element ICEPmu1 / Christopher Eidam." Hannover : Bibliothek der Tierärztlichen Hochschule Hannover, 2014. http://d-nb.info/106486256X/34.

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Lao, Julie. "Conception et mise en oeuvre d’une approche bioinformatique dédiée à l’identification des ICE, IME et éléments composites dans les génomes de Firmicutes." Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0063.

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Les ICE (Éléments intégratifs conjugatifs) et les IME (Éléments intégratifs mobilisables) sont des éléments mobiles bactériens qui jouent un rôle clé dans les transferts horizontaux. Ils ont la capacité de s'intégrer et de se transférer par conjugaison d'une bactérie à une autre. Ces éléments sont très répandus dans les génomes bactériens mais sont encore mal connus. Leur identification automatique est un défi et ils ne sont en général pas annotés dans les génomes. Jusqu'à présent, seules deux approches bioinformatiques permettent la détection des ICE et la détection des IME, mais leur fiabili

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Laroussi, Haifa. "Étude des mécanismes moléculaires d'initiation du transfert conjugatif d'ICESt3, médiée par une relaxase MOBT chez la bactérie Gram+ Streptococcus thermophilus." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0176.

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Les génomes bactériens évoluent principalement grâce au transfert horizontal de gènes. La conjugaison bactérienne en est un des mécanismes majeurs. Elle est notamment médiée par les éléments intégratifs et conjugatifs (ICE). En plus de leur transfert, les ICE codent d'autres fonctions conférant à leur hôte un avantage adaptatif, comme par exemple des résistances aux antibiotiques dont la diffusion est un enjeu majeur en santé publique. Il est donc nécessaire de comprendre comment les ICE se transfèrent si l'on veut limiter leur dissémination. Le transfert d'un ICE d'une cellule donatrice vers

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Nouvel, Laurent-Xavier. "Etude de la diversité génétique de Mycoplasma agalactiae : plasticité des génomes, mobilome et dynamique de surface." Thesis, Toulouse, INPT, 2009. http://www.theses.fr/2009INPT013A/document.

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Mycoplasma agalactiae est responsable de l'agalactie contagieuse, maladie des petits ruminants difficilement contrôlée et figurant sur la liste de l’OIE. Afin d’évaluer la diversité génétique de ce pathogène, 101 isolats ont été comparés par trois techniques (VNTR, RFLP, répertoire vpma). Les résultats révèlent une grande homogénéité génétique dont la souche type PG2 est représentative. Quelques isolats font exception telle la souche 5632 que nous avons séquencée et analysée ici. La comparaison des génomes et des protéomes entre 5632 et PG2 indiquent que la plasticité de ces génomes est liée à

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Coluzzi, Charles. "L'exploration des génomes par l'outil ICEFinder révèle la forte prévalence et l'extrême diversité des ICE et des IME de streptocoques." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0352/document.

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Les éléments génétiques mobiles contribuent grandement à la diversité et à l’évolution des génomes bactériens par le biais du transfert horizontal. Parmi eux, les éléments intégratifs conjugatifs (ICE) codent leur propre excision, leur transfert par conjugaison et leur intégration. En revanche, les éléments intégratifs et mobilisables (IME) ne sont autonomes que pour leur excision et intégration et ne codent seulement que certaines des protéines/fonctions (oriT) dont ils ont besoin pour leur transfert conjugatif. Par conséquent, les IME ont besoin d’un élément conjugatif « helper » pour se tra

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Košťál, Josef. "Posouzení tepelně-mechanické únavy výfukového potrubí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-418196.

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Tato diplomová práce se zabývá posouzením tepelně-mechanické únavy výfukového potrubí. Nejprve byla provedena rešeršní studie, ve které je rozebrán fenomén tepelně-mechanické únavy. Byly prezentovány hlavní mechanismy poškození a přístupy k jejich modelování. Diskutována byla i specifická chování materiálu vystavenému tepelně-mechanickému zatěžování. Byl vypracován přehled vhodných modelů materiálu a modelů únavové životnosti společně s algoritmem predikce tepelně-mechanické únavy komponenty. Poté byl tento teoretický základ aplikován na praktický případ výfukového potrubí podléhajícího tepeln

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