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Dissertations / Theses on the topic 'Aerogenes'

Author: Grafiati
Published: 3 June 2025
Last updated: 31 July 2025

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1

Smith, Peter R. "Investigation of cadmium sulfide particles on Klebsiella aerogenes." Thesis, University of East Anglia, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318017.

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2

FIRMO, Elza Ferreira. "Pesquisa de genes de resistência a aminogliosídios em isolados de colonização e infecção de Klebsiella pneumoniae e enterobacter aerogenes portadores do gene blaKPC provinentes de hospitais de Recife-PE." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/17747.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-08-26T13:01:30Z No. of bitstreams: 3 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) ElzaDissertação: 1942336 bytes, checksum: a9041b50df03d17a3c0538c97db03452 (MD5) ElzaDissertação: 1942336 bytes, checksum: a9041b50df03d17a3c0538c97db03452 (MD5)<br>Made available in DSpace on 2016-08-26T13:01:30Z (GMT). No. of bitstreams: 3 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) ElzaDissertação: 1942336 bytes, checksum: a9041b50df03d17a3c0538c97db03452 (MD5) ElzaDissertação
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3

Chollet, Renaud. "Régulation génétique de la multirésistance aux antibiotiques chez Enterobacter aerogenes." Aix-Marseille 2, 2004. http://www.theses.fr/2004AIX20659.

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Enterobacter aerogenes est devenu, ces dernières années, un pathogène incontournable du milieu hospitalier. Le caractère clonal des isolats et leur phénotype de résistance élevé aux antibiotiques représentent les deux caractéristiques principales de son épidémiologie. A côté des mécanismes d'inactivation enzymatique efficaces, sont maintenant décrits des processus générant une imperméabilité membranaire et un efflux actif. De telles souches sont considérées comme présentant un phénotype de " Multidrug-Resistance " (MDR). Face à cette situation, il est indispensable de caractériser les systèmes
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4

ARROYO, VINCENT. "Etude epidemiologique des enterobacter aerogenes resistants aux cephalosporines par ribotypage." Lyon 1, 1994. http://www.theses.fr/1994LYO1M146.

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5

BELTRÃO, Elizabeth Maria Bispo. "Caracterização de grupos de incompatibilidade plasmidial e ambiente genético de blaKPC-2, blaSCO-1, sul2 e aph (3')-VIi em isolados clínicos de Enterobacter aerogenes." Universidade Federal de Pernambuco, 2017. https://repositorio.ufpe.br/handle/123456789/25360.

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Submitted by Fernanda Rodrigues de Lima (fernanda.rlima@ufpe.br) on 2018-07-26T22:28:30Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) DISSERTAÇÃO Elizabeth Maria Bispo Beltrão.pdf: 1979482 bytes, checksum: 4c352a671acf0ad5c11d2ee0a0879114 (MD5)<br>Approved for entry into archive by Alice Araujo (alice.caraujo@ufpe.br) on 2018-08-02T21:34:26Z (GMT) No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) DISSERTAÇÃO Elizabeth Maria Bispo Beltrão.pdf: 1979482 bytes, checksum: 4c352a671acf0ad5c11d2ee0a0879114 (M
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6

Holmes, Justin. "The photoactivity of the extracellular cadmium sulfide particles of Klebsiella aerogenes." Thesis, University of East Anglia, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338221.

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7

Fuchs, R. S. "The purification and characterisation of histidine ammonia-lyase from Klebsiella aerogenes." Thesis, University of Leeds, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384495.

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8

Tyrrell, Richard. "Biochemical and structural studies of the CysB protein from Klebsiella aerogenes." Thesis, University of York, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296290.

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9

Jacobs, D. "Type II restriction-modified systems in Enterobacter aerogenes and Herpetosiphon giganteus." Thesis, University of Bristol, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.379680.

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10

Bornet, Charléric. "Perméabilité membranaire et mécanismes de résistance aux antibiotiques chez Enterobacter aerogenes." Aix-Marseille 2, 2004. http://www.theses.fr/2004AIX20654.

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11

Kim, Jong Kyong. "Characterization of Bacillus subtilis urease and the Klebsiella aerogenes UreEF protein." Diss., Connect to online resource - MSU authorized users, 2006.

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12

Thomson, F. M. "Control of the switch from acidic to neutral fermentation in Klebsiella aerogenes." Thesis, University of Aberdeen, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.593565.

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13

Dupont, Myrielle. "Régulation de la perméabilité membranaire et de la sensibilité aux antibiotiques chez les bactéries à gram négatif." Aix-Marseille 2, 2006. http://www.theses.fr/2006AIX20693.

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L'émergence de bactéries résistantes à plusieurs drogues pose un réel problème thérapeutique. Parmi ces bactéries, Enterobacter aerogenes et Acinetobacter baumannii sont devenues en l'espace de 10 ans des pathogènes incontournables en milieu hospitalier. Ces bactéries possèdent une grande capacité à coloniser de nouveaux territoires et à acquérir de nouveaux mécanismes de résistance. Ainsi à des mécanismes d’inactivation enzymatiques efficaces, sont associés des processus générant une imperméabilité membranaire et un efflux actif. De telles souches bactériennes sont considérées comme présentan
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14

BOSI, CLAUDE. "Epidemiologie de la resistance aux antibiotiques de enterobacter aerogenes (doctorat : maladies transmissibles et pathologies tropicales)." Aix-Marseille 2, 2000. http://www.theses.fr/2000AIX20655.

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15

Hall, Amanda, Steven Pribanich, and Sean Fox. "Analysis of Reciprocal Inhibition Between Candida albicans and Opportunistic Pathogens Enterobacter aerogenes and Enterobacter cloacae." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/asrf/2020/presentations/51.

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The fungal pathogen Candida albicans and the opportunistic bacterial pathogens Enterobacter aerogenes and Enterobacter cloacae are common sources of human disease. The colonization of proximal anatomical locations by these pathogens suggests that interspecies polymicrobial interactions between Candida albicans and Enterobacter species occur. In order to understand mechanisms of diseases caused by these pathogens and to further the study of disease prevention, analyzation of their combined activities was conducted in this study. Changes in fungal morphology, cellular viability, and colony densi
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16

CABRAL, Adriane Borges. "Caracterização genética de isolados clínicos de Enterobacter aerogenes e Enterobacter cloacae: determinantes de resistência e virulência." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/17748.

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17

Rosa, Juliana Ferraz. "Caracterização molecular dos mecanismos de resistência aos carbapenêmicos de isolados clínicos de Enterobacter aerogenes e Enterobacter cloacae." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/5/5134/tde-11012016-142655/.

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INTRODUÇÃO: Nas últimas três décadas E. aerogenes e E. cloacae vem sendo reportado como importante patógeno de infecção relacionada a assistência à saúde e vem cada vez mais apresentando resistência a vários antibióticos incluindo os carbapenêmicos. Poucos estudos, entretanto, avaliaram os mecanismos de resistência aos carbapenêmicos em espécies de Enterobacter no Mundo e no Brasil. OBJETIVO: Avaliar a presença de genes codificadores de carbapenemases, genes de ?- lactamases de espectro estendido e de bomba de fluxo AcrAB-TolC e alteração de proteínas de membrana externa de 44 isolados de E. a
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18

Sampaio, Jorge Luiz Mello. "Caracterização de betalactamases de espectro ampliado e KPC em Enterobacter cloacae e Enterobacter aerogenes isoladas de casos de infecções relacionadas aos cuidados com a saúde em pacientes atendidos em hospitais da cidade de São." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/5/5134/tde-30112011-183431/.

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INTRODUÇÃO: O tratamento das infecções relacionadas à assistência à saúde, causadas por enterobactérias, representa um desafio crescente, em função do aumento da prevalência de resistência aos betalactâmicos, em particular às cefalosporinas de terceira e quarta gerações e carbapenêmicos. Os mecanismos de resistência mais relevantes a essas classes de antimicrobianos, em enterobactérias, é a produção de betalactamases de espectro ampliado e carbapenemases. Os objetivos do estudo foram: (1) determinar a frequência e caracterizar betalactamases de espectro ampliado (ESBL); (2) determinar a frequê
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19

Lopes, Sofia Helena Lewis. "Valorização de resíduos agro-industriais para a produção biológica de hidrogénio." Master's thesis, ISA, 2013. http://hdl.handle.net/10400.5/6685.

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Mestrado em Engenharia do Ambiente - Instituto Superior de Agronomia<br>Biohydrogen (bioH2) production through anaerobic fermentation has the advantage of the possibility to use waste as substrate becoming an attractive alternative from both economic and environmental viewpoint. In this study, it was developed a microbiological anaerobic process to produce hydrogen by a strain of bacterium Enterobacter aerogenes using as a substrate, Jatropha curcas seed cake. In this context, the effects of the application of a thermal pretreatment and the increase of residue initial concentration on th
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20

FOURIS, MARIE-ISABELLE. "Modification de la distribution des enterobacteries multiresistantes dans un service de reanimation polyvalente : recherche etiologique a partir de 52 dossiers cliniques." Clermont-Ferrand 1, 1992. http://www.theses.fr/1992CLF13057.

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21

Girardi, Viviane. "Emprego do glicerol como fonte de carbono na produção fermentativa de 2,3-Butanodiol por Enterobacter aerogenes ATCC 13048." reponame:Repositório Institucional da UCS, 2014. https://repositorio.ucs.br/handle/11338/902.

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Neste trabalho, estudou-se o uso de glicerol como fonte de carbono para o crescimento celular e a produção de 2,3-butanodiol/acetoína em cultivo de Enterobacter aerogenes ATCC 13048. A influência da concentração inicial do substrato (S0) e da velocidade de transferência de oxigênio (OTR) foi avaliada em ensaios em regime descontínuo. Inicialmente, foram realizados cultivos com S0 na faixa aproximada de 20 a 180 g/L, frequência dos agitadores de 500 rpm e fluxo específico de ar de 0,50 vvm, correspondendo a uma OTR característica entre 10 e 13 mmol/L/h, aproximadamente. Na sequência, foram cond
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22

Morgado, Galdames Juan Alberto. "Estudio y modificación de enterobacter aerogenes mediante ingeniería genética: análisis de las vías para la producción de hidrógeno." Tesis, Universidad de Chile, 2018. http://repositorio.uchile.cl/handle/2250/165711.

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Doctor en Ciencias de la Ingeniería, Mención Ingeniería Química y Biotecnología<br>La enorme demanda energética que es necesaria para satisfacer las necesidades socio-económicas tanto en Chile como a nivel mundial ha planteado un gran desafío debido a que la principal fuente para la generación de energía proviene de los combustibles de origen fósil, que además de estar agotándose han generado un gran impacto ambiental. Esto a llevando a la búsqueda de nuevas formas energéticas. Entre estas, el hidrógeno molecular (H2) producido por medios biológicos es considerada la forma de energía más prome
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23

Pereira, Rito Santo. "Aspectos fisiológicos e moleculares da resistência aos carbapenêmicos em klebsiella pneumoniae e Enterobacter aerogenes, com implicação na virulência bacteriana." Universidade Federal de Juiz de Fora, 2014. https://repositorio.ufjf.br/jspui/handle/ufjf/453.

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24

Hernández, Jessica. "Design et synthèse de nouveaux inhibiteurs de la résistance bactérienne ciblant la pompe d'efflux AcrAB-ToIC chez Enterobacter aerogenes." Thesis, Aix-Marseille, 2016. http://www.theses.fr/2016AIXM5508.

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La surexpression des pompes d’efflux (PE) appartenant à la famille Resistance-Nodulation-Division (RND) est l’un des contributeurs majeurs de la multirésistance (MDR) et la pathogénicité des bactéries Gram-négatives. Ces transporteurs sont capables d'expulser à l’extérieur de la cellule bactérienne différentes classes d'antibiotiques, ce qui contribue de manière significative à l'échec thérapeutique du traitement des maladies infectieuses. Dans ce contexte, les PEs sont des cibles intéressantes pour la découverte de nouveaux antimicrobiens. Afin de combattre ce mécanisme de résistance, des inh
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25

Hernández, Jessica. "Design et synthèse de nouveaux inhibiteurs de la résistance bactérienne ciblant la pompe d'efflux AcrAB-ToIC chez Enterobacter aerogenes." Electronic Thesis or Diss., Aix-Marseille, 2016. http://www.theses.fr/2016AIXM5508.

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La surexpression des pompes d’efflux (PE) appartenant à la famille Resistance-Nodulation-Division (RND) est l’un des contributeurs majeurs de la multirésistance (MDR) et la pathogénicité des bactéries Gram-négatives. Ces transporteurs sont capables d'expulser à l’extérieur de la cellule bactérienne différentes classes d'antibiotiques, ce qui contribue de manière significative à l'échec thérapeutique du traitement des maladies infectieuses. Dans ce contexte, les PEs sont des cibles intéressantes pour la découverte de nouveaux antimicrobiens. Afin de combattre ce mécanisme de résistance, des inh
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26

Mira, Manuel Maria Vaz Pequito. "Produção de biohidrogénio a partir de diferentes fontes de carbono, por fermentação anaeróbia." Master's thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/7801.

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Dissertação para a obtenção do Grau de Mestre em Energia e Bioenergia<br>A actual tendência de consumo exponencial de combustíveis fósseis, para a satisfação das necessidades energéticas mundiais, terá como consequência uma diminuição das reservas existentes e um aumento das emissões de gases de efeito de estufa, tais como CO2, CH4 e N2O. Perante este cenário, torna-se imperativo reduzir a dependência de combustíveis fósseis, através da implementação de fontes de energia renovável, de modo a garantir a sustentabilidade energética a nível mundial. A produção de H2 por via biológica (bioH
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27

Demarquilly-Henquell, Cécile. "Résistance des entérobactéries aux béta-lactamines : résistance des Enterobacter aerogenes aux carbapénèmes, résistance des Escherichia coli aux associations de béta-lactamines et inhibiteurs de béta-lactamases." Clermont-Ferrand 1, 1995. http://www.theses.fr/1995CLF1MM04.

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28

Quiroz, Valenzuela Soledad De Los Ángeles. "New insights in the urease activation process obtained by characterization of apourease complexes and the UreG accessory protein of Klebsiella aerogenes." Diss., Connect to online resource - MSU authorized users, 2008.

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Thesis (Ph.D.)--Michigan State University. Dept. of Biochemistry and Molecular Biology, 2008.<br>Title from PDF t.p. (viewed on Mar. 30, 2009) Includes bibliographical references. Also issued in print.
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29

Eder, Ana Silvia. "Produção de hidrogênio por culturas isoladas de Bacillus cereus, Enterococcus faecalis e Enterobacter aerogenes a partir de vinhaça de cana-de-açúcar." reponame:Repositório Institucional da UCS, 2018. https://repositorio.ucs.br/handle/11338/3718.

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30

Molitor, Alexander. "Régulation de la perméabilité membranaire chez les bactéries à Gram négatif et la relation avec la sensibilité aux antibiotiques." Thesis, Aix-Marseille 2, 2010. http://www.theses.fr/2010AIX20658/document.

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La perméabilité membranaire joue un rôle important dans la résistance aux antibiotiques chez lesbactéries à Gram négatif.L’objectif de notre travail était de caractériser la fonction tenue par les deux régulateurs globaux dela perméabilité membranaire chez Enterobacer aerogenes: mar et ram. L’objectif initial futd’identifier le répresseur spécifique de RamA qui manquait en tant qu’élément de la cascade derégulation actuellement définie. La sélection de 60 souches nous a permis de confirmer le rôlecentral joué par RamA dans la régulation, ainsi qu’identifier des mutations pouvant être critiques
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31

Neves, Luís Miguel Viegas das. "Produção de biohidrogénio por bactérias a partir de resíduos fermentescíveis." Master's thesis, FCT - UNL, 2009. http://hdl.handle.net/10362/1950.

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Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do grau de Mestre em Engenharia Química e Bioquímica<br>Como é do conhecimento geral, as necessidades energéticas mundiais têm aumentado exponencialmente, as reservas de combustíveis fosseis têm vindo a diminuir e a sua combustão tem sérios efeitos nefastos ambientais, devido às emissões de CO2. Tendo tudo isto em consideração, o desenvolvimento de um mundo energeticamente sustentável requer a redução da dependência dos combustíveis fósseis e a diminuição da poluição por eles gerada. O
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32

Coze, Céline. "Epidémiologie d'infections nosocomiales à enterobacter aerogènes dans un service de réanimation médicale." Bordeaux 2, 1995. http://www.theses.fr/1995BOR2P003.

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33

Corrêa, Isadora Mainieri de Oliveira. "Enterobactérias e fatores de virulência em cepas de Escherichia coli isoladas de psitacídeos." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/10114.

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Programa de Apoio aos Planos de Reestruturação e Expansão das Universidades Federais<br>The microbiota intestinal of Psittaciformes is mainly composed of Gram positive bacteria, is considered a sign of illness the presence of Gram negative bacteria. Wild birds are important to public health by harboring pathogens able of zoonotic transmission. The displacement of these birds, such as occurs in the trafficking of wild animals, is a propagation mechanism of new endemic foci of infections agents to long distances from where they were acquired. In this study we examined the presence of enterobacte
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34

Neuwirth, Catherine. "Phénotypes inhabituels de résistance aux bêta-lactamines chez enterobacter aerogènes, klebsiella pneumoniae et proteus mirabilis." Dijon, 1996. http://www.theses.fr/1996DIJOMU01.

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35

Davin-Regli, Anne-Véronique. "Marquage epidemiologique par amplification aleatoire : application a l'investigation d'epidemies hospitalieres." Aix-Marseille 2, 1995. http://www.theses.fr/1995AIX20657.

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36

Fukui, Keita. "Studies on Microbial Succinate Production." Kyoto University, 2019. http://hdl.handle.net/2433/242552.

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37

Ziegler, Christoph, André Wolf, Wei Liu, Anne-Kristin Herrmann, Nikolai Gaponik, and Alexander Eychmüller. "Modern Inorganic Aerogels." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-232333.

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Essentially, the term aerogel describes a special geometric structure of matter. It is neither limited to any material nor to any synthesis procedure. Hence, the possible variety of materials and therefore the multitude of their applications are almost unbounded. Here we present a comprehensive picture of the most promising developments in the field during the last decades.
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38

FRANCOZ, ERIC. "Structure et evolution des regions malb des enterobacteries : implications fonctionnelles." Paris 6, 1990. http://www.theses.fr/1990PA066509.

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La region malb est responsable de la synthese des proteines intervenant dans le transport du maltose et des maltodextrines chez escherichia coli. Elle est composee de deux operons divergents malefg et malklm. Apres avoir montre que malg etait le dernier gene de l'unite de transcription en localisant le 3 du messager, nous avons clone et determine la sequence de la plus grande partie des regions malb d'enterobacter aerogenes et de salmonella typhimurium. Les regions malb sequencees montrent une organisation similaire a celle de e. Coli. L'organisation de la region regulatrice a ete precisee et
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39

Atifi, Siham. "Synthèse de nouveaux dérivés de la pyrido[3,2-g]quinoléine-4,6-dione : étude de leurs propriétés réversantes de la résistance chez les cellules procaryotes et eucaryotes." Aix-Marseille 2, 2004. http://www.theses.fr/2004AIX22954.

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40

Barbar, Saber Davide. "Impact de la ventilation mécanique sur la réponse inflammatoire médiée par les Toll-like receptors 2 et 4 dans un modèle de pneumopathie bactérienne." Thesis, Dijon, 2014. http://www.theses.fr/2014DIJOS039/document.

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Introduction: La pneumonie associée à la ventilation mécanique (VM) est fréquente chez les patients ventilés. L’étirement cyclique (EC) induit par la VM pourrait amorcer le poumon vers une réponse inflammatoire en cas d'exposition à des bactéries. Les Toll-like Receptors (TLR) reconnaissent les bactéries et déclenchent l'immunité. La VM pourrait moduler l'expression des TLR et leur réactivité aux agonistes. Le décubitus ventral (DV) réduit l’étirement du poumon. Méthodes: Les niveaux de TLR2 et la réponse à ses agonistes ont été mesures dans des cellules pulmonaires soumises à un EC, et dans u
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41

Longo, Simona. "Polymeric aerogels." Doctoral thesis, Universita degli studi di Salerno, 2014. http://hdl.handle.net/10556/1454.

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2012 - 2013<br>Aerogels are a unique class of materials characterized by a highly porous network, being attractive for many applications such as thermal and acoustic insulation, capacitors or catalysis. In more recent years, polymeric aerogels based on thermoplastic uncrosslinked polymers, where the knots of the three-dimensional networks are physical, not formed by covalent chemical bonds but by small crystallites, have been obtained. These physically cross-linked aerogels are generally prepared by supercritical CO2 extraction of thermoreversible organogels. Besides aerogels, another class
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42

Svingala, Forrest R. "Alkali activated aerogels /." Online version of thesis, 2009. http://hdl.handle.net/1850/10097.

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Beier, Max Gregor, Christoph Ziegler, Karl Wegner, et al. "A fast route to modified tin oxide aerogels using hydroxostannate precursors." Royal Society of Chemistry, 2018. https://tud.qucosa.de/id/qucosa%3A33351.

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Nanostructured tin oxide materials with a high specific surface area and porosity are promising for applications such as electrocatalysis, lithium ion batteries or sensors. Here, we present a facile strategy for the synthesis of tin oxide aerogels using inexpensive hexahydroxostannate as tin precursor. This easy and scalable method yields tin oxide aerogels with a high specific surface area and wide pore size distribution. The method can be modified by adding hexahydroxoantimonate to obtain antimony doped tin oxide aerogels that show an electrical conductivity after annealing. A cogelation wit
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Rengers, Christin. "3D Arrangements of Encapsulated Fluorescent Quantum Dots." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200303.

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Nanomaterials have attracted considerable attention during the past decades due to their unique and fascinating properties. However, this class of materials is not an invention of modern age. People have been using nanomaterials for centuries, although unwittingly. Probably the most famous example for the usage of nanomaterials in ancient times is the Lycurgus Cup, a Roman glass cage cup created in the 4th century which changes the colour of its glass from green to ruby depending on the illumination conditions. The foundation for the development of the field of nanotechnology was laid by the
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Tarrés, Farrés Joaquim Agustí. "Endo-β-1,4-glucanasa para la fabricación de micro/nanocelulosa: propiedades y aplicaciones". Doctoral thesis, Universitat de Girona, 2017. http://hdl.handle.net/10803/456211.

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In the recent years, significant interest on the production, characterization and application of cellulose nanofibers has brought out among scientific and technic authorities. This special attention mainly comes from their biodegradability, renewability and versatility, making them able to be used for several applications and fields. This topic outbreak took place about ten years ago, fact that is confirmed by the exponential increase on scientific publications and patents since then. In a nutshell, the present thesis aims to demonstrate that enzymatically hydrolyzed cellulose nanofibers can
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Cai, Bin, and Alexander Eychmüller. "Promoting Electrocatalysis upon Aerogels." Wiley VCH, 2019. https://tud.qucosa.de/id/qucosa%3A35457.

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Electrocatalysis plays a prominent role in renewable energy conversion and storage, enabling a number of sustainable processes for future technologies. There are generally three strategies to improve the efficiency (or activity) of the electrocatalysts: (i) increasing the intrinsic activity of the catalyst itself; (ii) improving the exposure of active sites; and (iii) acceleratingmass transfer during catalysis (both reactants and products). These strategies are not mutually exclusive and can ideally be addressed simultaneously, leading to the largest improvements in activity. Aerogels, as feat
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Samvin, Daniel, and Stefan Markovic. "InsuFlex : Framtagning och analys av högpresterande isoleringskoncept i sandwichelement." Thesis, Högskolan i Halmstad, Sektionen för ekonomi och teknik (SET), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-25546.

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Rapportens huvudsyfte är att ta fram en isoleringskombination av högpresterande material, som ska bidra till ett förbättrat U-värde och reducerad väggtjocklek. Konstruktionen är baserad på en befintlig sandwichvägg från Strängbetong, där författarna ersatt den ursprungliga isoleringen med det utvecklade isolerskiktet för att slutligen studera väggarna med lika villkor. Den framtagna väggens isolerings- förmåga presenteras genom handberäkningar, där det erhålls U-värde och temperaturfördelningar mellan elementens olika skikt vid stationära förhållanden. Det har även utförts värmesimuleringar fö
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Kühn, Laura. "Bimetallic aerogels for electrocatalytic applications." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-226469.

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Polymer electrolyte fuel cells (PEFCs) have emerged as a promising renewable emission-free technology to solve the worldwide increasing demand for clean and efficient energy conversion. Despite large efforts in academia and automotive industry, the commercialization of PEFC vehicles still remains a great challenge. Critical issues are high material costs, insufficient catalytic activity as well as longterm durability. Especially due to the sluggish kinetics of the oxygen reduction reaction (ORR), high Pt loadings on the cathode are still necessary which leads to elevated costs. Alloys of Pt w
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Sayevich, Vladimir, Bin Cai, Albrecht Benad, et al. "3D Assembly of All-Inorganic Colloidal Nanocrystals into Gels and Aerogels." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-216698.

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We report on an efficient assembly approach to a variety of electrostatically stabilized all-inorganic semiconductor nanocrystals (NCs) via their linking with appropriate ions into multibranched gel networks. These all-inorganic non-ordered 3D assemblies can combine strong interparticle coupling which facilitates charge transport between the NCs with their diverse morphology, composition, size, and functional capping ligands. Moreover, the resulting dry gels (aerogels) are highly porous monolithic structures, which preserve the quantum confinement of their building blocks. The inorganic semico
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Torrijos, Michel. "Evaluation des techniques non conventionnelles d'intensification des transferts d'oxygene en fermentation." Toulouse, INSA, 1987. http://www.theses.fr/1987ISAT0020.

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Etude dans le cas particulier de la production de 2,3-butanediol par enterobacter aerogenes. Amelioration du transfert de l'oxygene realisee grace a l'utilisation d'hydroinjecteurs ou de substances capables de vehiculer l'oxygene (n-paraffines et derives fluores)
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