Relevant bibliographies by topics / Gradiente termico

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Gradiente termico'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 April 2022

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Journal articles on the topic "Gradiente termico"

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Waite, J. H., E. Vaccaro, C. Sun, and J. M. Lucas. "Elastomeric gradients: a hedge against stress concentration in marine holdfasts?" Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 357, no. 1418 (2002): 143–53. http://dx.doi.org/10.1098/rstb.2001.1025.

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The byssal threads of marine mussels are elastomeric fibres with a great capacity for absorbing and dissipating energy. Up to 70% of the total absorbed energy can be dissipated in the byssus. Because byssal threads attach the mussel to hard inert surfaces in its habitat, they must combine the need to be good shock absorbers with appropriate matching of Young's modulus between living tissue and a hard sub–stratum such as stone—stiffnesses that can differ by five orders of magnitude. Recent data suggest that improved modulus matching and decreased stress concentration between different portions
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Moss, Christopher L., Thomas W. Chung, Václav Čeřovský, and František Tureček. "Electron transfer dissociation of a melectin peptide: correlating the precursor ion structure with peptide backbone dissociations." Collection of Czechoslovak Chemical Communications 76, no. 4 (2011): 295–309. http://dx.doi.org/10.1135/cccc2011025.

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Electron transfer dissociation (ETD) of doubly and triply charged ions from the amphipathic N-terminal decapeptide GFLSILKKVL-NH2 segment of melectin gave different distributions of fragment ions. The triply charged ions generated extensive series of fragment ions of c and z type that covered the entire sequence from both the N and C termini. In contrast, electron transfer to the doubly charged ions caused backbone cleavages that occurred at residues close to the N and C termini. Attachment of a free low-energy electron to the doubly charged ions caused primary dissociations close to the N and
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Chiu, Roger, and Duane P. Grandgenett. "Avian Retrovirus DNA Internal Attachment Site Requirements for Full-Site Integration In Vitro." Journal of Virology 74, no. 18 (2000): 8292–98. http://dx.doi.org/10.1128/jvi.74.18.8292-8298.2000.

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ABSTRACT Concerted integration of retrovirus DNA termini into the host chromosome in vivo requires specific interactions between thecis-acting attachment (att) sites at the viral termini and the viral integrase (IN) in trans. In this study, reconstruction experiments with purified avian myeloblastosis virus (AMV) IN and retrovirus-like donor substrates containing wild-type and mutant termini were performed to map the internalatt DNA sequence requirements for concerted integration, here termed full-site integration. The avian retrovirus mutations were modeled after internal att site mutations s
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Gondra, José, and Inára Garcia. "A arte de endurecer "miolos moles e cérebros brandos": a racionalidade médico-higiênica e a construção social da infância." Revista Brasileira de Educação, no. 26 (August 2004): 69–84. http://dx.doi.org/10.1590/s1413-24782004000200006.

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Pensar a infância implica trabalhar com a idéia de uma vida segmentada, construir marcos de começo e término das diferentes fases, num gradiente de idades evolutivo e linear. Assim, a tentativa de especificar essas etapas termina por repartir a vida de forma detalhada, além de unificar o que se encontra recoberto em cada uma das supostas idades da vida. Unificação que não é propriedade de um passado mais recuado, pois persiste na atualidade a crença em uma infância homogênea e cronologicamente repartida. Dessa forma, a cronologia da vida, problematizada nesse trabalho, considera tanto a base,
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Lacabana, Pablo. "Gradiente de vulnerabilidad socio-ambiental en el Partido de Quilmes, Provincia de Buenos Aires, Argentina." Revista Geográfica, no. 164 (January 31, 2022): 39–62. http://dx.doi.org/10.35424/regeo.164.2022.1041.

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El concepto de adaptación al cambio climático nos remite a posibles actuaciones emprendidas anticipadamente para reducir la vulnerabilidad de un sistema, de una ciudad o de un grupo social. Para generar capacidad adaptativa, es decir poder evitar pérdidas y acelerar la recuperación tras cualquier impacto climático, resulta fundamental, entre otras acciones, contar con información territorial. Detectar a tiempo las vulnerabilidades como fragmentaciones territoriales producidas por la desigualdad socio-ambiental, pueden hacer la diferencia para una eficiente gestión del riesgo. Es por ello, que
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Miranda-Rottmann, Soledad, Andrei S. Kozlov, and A. J. Hudspeth. "Highly Specific Alternative Splicing of Transcripts Encoding BK Channels in the Chicken's Cochlea Is a Minor Determinant of the Tonotopic Gradient." Molecular and Cellular Biology 30, no. 14 (2010): 3646–60. http://dx.doi.org/10.1128/mcb.00073-10.

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ABSTRACT The frequency sensitivity of auditory hair cells in the inner ear varies with their longitudinal position in the sensory epithelium. Among the factors that determine the differential cellular response to sound is the resonance of a hair cell's transmembrane electrical potential, whose frequency correlates with the kinetic properties of the high-conductance Ca2+-activated K+ (BK) channels encoded by a Slo (kcnma1) gene. It has been proposed that the inclusion of specific alternative axons in the Slo transcripts along the cochlea underlies the gradient of BK-channel kinetics. By analyzi
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Mondal, Samiran, Nasim A. Begum, Wenjun Hu, and Tasuku Honjo. "Functional requirements of AID’s higher order structures and their interaction with RNA-binding proteins." Proceedings of the National Academy of Sciences 113, no. 11 (2016): E1545—E1554. http://dx.doi.org/10.1073/pnas.1601678113.

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Activation-induced cytidine deaminase (AID) is essential for the somatic hypermutation (SHM) and class-switch recombination (CSR) of Ig genes. Although both the N and C termini of AID have unique functions in DNA cleavage and recombination, respectively, during SHM and CSR, their molecular mechanisms are poorly understood. Using a bimolecular fluorescence complementation (BiFC) assay combined with glycerol gradient fractionation, we revealed that the AID C terminus is required for a stable dimer formation. Furthermore, AID monomers and dimers form complexes with distinct heterogeneous nuclear
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Flores-Hernández, Domingo, Julia Ramos-Miranda, Luis Amado Ayala-Pérez, and Francisco Gómez Criollo. "Environmental variation vs co-occurrence of two fish families (Gerreidae and Ariidae) in Terminos Lagoon, Campeche, Mexico." JAINA Costas y Mares ante el Cambio Climático 3, no. 1 (2021): 5–22. http://dx.doi.org/10.26359/52462.0121.

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Terminos Lagoon is recognized as an ecosystem of great diversity and productivity in the southern Gulf of Mexico. It is also the site of various anthropogenic activities in the lagoon as well as in its surroundings. In addition, in recent years this lagoon has showed variations in temperature and salinity as a result of global warming and/or watershed management. This has generated variations in the structure and function of fish communities, among other taxonomic groups. IIn this work, we analyze the changes in abundance and distribution associated with modifications in the salinity of fish s
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Kiss, T., M. L. Bortolin, and W. Filipowicz. "Characterization of the intron-encoded U19 RNA, a new mammalian small nucleolar RNA that is not associated with fibrillarin." Molecular and Cellular Biology 16, no. 4 (1996): 1391–400. http://dx.doi.org/10.1128/mcb.16.4.1391.

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We have characterized a new member (U19) of a group of mammalian small nuclear RNAs that are not precipitable with antibodies against fibrillarin, a conserved nucleolar protein associated with most of the small nucleolar RNAs characterized to date. Human U19 RNA is 200 nucleotides long and possesses 5'-monophosphate and 3'-hydroxyl termini. It lacks functional boxes C and D, sequence motifs required for fibrillarin binding in many other snoRNAs. Human and mouse RNA are 86% homologous and can be folded into similar secondary structures, a finding supported by the results of nuclease probing of
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Lewis, Michael. "Vitruvius and Greek aqueducts." Papers of the British School at Rome 67 (November 1999): 145–72. http://dx.doi.org/10.1017/s0068246200004530.

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VITRUVIO E GLI ACQUEDOTTI GRECILa sezione di Vitruvio (VIII 5-6.9) sugli acquedotti ha causato molte difficoltà agli studiosi della materia che non riescono a riconciliarlo né con le pratiche conosciute nell'occidente romano, né con le teorie dell'idraulica moderna. In questo articolo si sostiene che, con l'eccezione dei passaggi sulle dimensioni dei tubi e sulla distribuzione urbana, le fonti di Vitruvio siano interamente greche. La sua descrizione dei chorobates deriva da Carpo di Antiochia, i suoi dati sul gradiente da Filone di Bisanzio, mentre le sue specifiche riguardanti le condutture d
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Dissertations / Theses on the topic "Gradiente termico"

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Maldonado, Anibal Ruben. "Caracterização termodinamica de reservatorios com gradiente termico horizontal." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263397.

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Orientador: Antonio Claudio de França Correa<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica e Instituto de Geociencias<br>Made available in DSpace on 2018-08-04T17:53:17Z (GMT). No. of bitstreams: 1 Maldonado_AnibalRuben_M.pdf: 2231799 bytes, checksum: dceac9e6dc3c5c1f98438546cc752218 (MD5) Previous issue date: 2005<br>Resumo: O principal objetivo deste trabalho é melhorar a caracterização de reservatórios que encontram-se ainda em fase de exploração e apresentam gradientes térmicos verticais e horizontais. Foi construído um modelo matemático
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Rodriguez, Pablo Julian. "Determinação de propriedades termodinamicas de reservatorios com gradiente termico horizontal." [s.n.], 2003. http://repositorio.unicamp.br/jspui/handle/REPOSIP/263411.

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Orientador : Antonio Claudio de França Corrrea<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecanica, Instituto de Geociencias<br>Made available in DSpace on 2018-08-03T22:44:48Z (GMT). No. of bitstreams: 1 Rodriguez_PabloJulian_M.pdf: 5868106 bytes, checksum: ce00866864ea2a1a8e1b41f30db0b249 (MD5) Previous issue date: 2003<br>Resumo: Nosso trabalho teve como principal objetivo prever a variação de propriedades termodinâmicas, sob perspectiva fenomenológica, em reservatórios petrolíferos que se encontram perto do talude marinho,. Para tal motivo des
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Carmona, Tiago Garcia. "Esforços circunferenciais em tanques de concreto armado com seção circular : tensões originadas por gradiente termico." [s.n.], 2005. http://repositorio.unicamp.br/jspui/handle/REPOSIP/258578.

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Orientador: Newton de Oliveira Pinto Junior<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo<br>Made available in DSpace on 2018-08-07T09:19:10Z (GMT). No. of bitstreams: 1 Carmona_TiagoGarcia_M.pdf: 1542541 bytes, checksum: 8f386834340021978bc83fc4da322af0 (MD5) Previous issue date: 2006<br>Resumo: O uso de estruturas cilíndricas para armazenamento de líquidos e materiais granulares apresenta-se como uma eficiente solução, pois sob a ação da pressão interna desenvolvem-se predominantemente esforços de tração (esforços cir
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Magnani, Riccardo. "Meccanismi di trasporto dell'energia in astrofisica." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24825/.

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L'energia nell'universo può essere veicolata verso la Terra in molteplici modi, i quali dipendono soprattutto dal tipo di sorgente e in che ambiente essa si trova. L’elaborato ha come obiettivo quello di esporre sinteticamente i processi che permettono di trasportare l'energia sia negli interni delle stelle, sia nello spazio tramite neutrini. I meccanismi di trasporto nelle stelle sono fondamentali durante il loro ciclo vitale e permettono di conoscere le caratteristiche macroscopiche e chimiche dell'ambiente interno. Il primo capitolo illustra brevemente il modo in cui viene prodotta l'energi
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Altieri, Fabiano. "Approcci biomedici ottici per la stimolazione ed il monitoraggio dell'attività cerebrale." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19363/.

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IL’utilizzo della luce per lo studio del cervello ha principalmente riguardato lo sviluppo di tecniche di imaging, la fotonica ed i suoi principi sono state utilizzate negli ultimi anni manipolare, stimolare e studiare l’attività di cellule cerebrali. Lo scopo di questo lavoro di tesi è quello di passare in rassegna in modo critico i più recenti risultati ottenuti nella modulazione attivazione di attività di cellule neurali attraverso approcci e tecniche che prevedono l’utilizzo della luce. Le tecniche di stimolazione o modulazione mediante luce più importanti sono: l’optogenetica, l’uso
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Ferreira, Ligia Silva Damasceno. "Migração de umidade causada por gradientes termicos entre duas fronteiras impermeaveis contendo um meio poroso não saturado." reponame:Repositório Institucional da UFSC, 1987. http://repositorio.ufsc.br/xmlui/handle/123456789/75386.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnologico<br>Made available in DSpace on 2012-10-16T00:50:26Z (GMT). No. of bitstreams: 0Bitstream added on 2016-01-08T15:51:34Z : No. of bitstreams: 1 82006.pdf: 2684050 bytes, checksum: ca3b243b6f9e3b78b66ed1c0cde2c5b2 (MD5)<br>O presente trabalho investiga o fenômeno da migração de umidade devido a gradientes térmicos entre duas fronteiras impermeáveis contendo um meio poroso não saturado. Sua motivação advém da necessidade de se conhecer o processo de secagem que ocorre em solos que envolvem cabos de potência aterrad
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Alberti, Paolo. "Circuiti per la conversione di micro potenze da gradienti termici ambientali." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/3568/.

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In questa tesi vengono analizzati alcuni schemi circuitali di convertitori di micro potenze da generatori termoelettrici sottoposti a gradienti di temperatura limitati. I circuiti, basati su oscillatori step-up in grado di innescarsi con tensioni di alimentazione estremamente basse, sono stati analizzati dal punto di vista teorico e mediante successive simulazioni circuitali. Le potenze ottenibili con gradienti di temperatura inferiori a 10K risultano tipicamente comprese tra qualche uW e qualche decina di uW, con efficienze fino a circa il 40%.
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Welter, Maria Eugênia Sausen. "Modelagem do termo de contra gradiente na parametrização de turbulência no modelo atmosférico BRAMS." Instituto Nacional de Pesquisas Espaciais (INPE), 2016. http://urlib.net/sid.inpe.br/mtc-m21b/2016/06.09.14.32.

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Com o avanço dos recursos computacionais nas últimas décadas tornou-se possível simular mais realisticamente o comportamento da atmosfera, sobretudo o da Camada Limite Planetária (CLP), onde a turbulência é principal mecanismo controlando sua dinâmica. No modelo atmosférico Brazilian developments on the Regional Atmospheric Modelling System (BRAMS), estão disponíveis três técnicas de simulações de turbulência, sendo uma delas baseada na Teoria de Taylor implementada por (BARBOSA, 2007). Neste trabalho será implementado um novo termo nesta rotina de turbulência baseada na Teoria de Taylor. Este
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Davies, Andrew Byron. "Termite responses to long term burning regimes in southern African savannas : patterns, processes and conservation." Diss., University of Pretoria, 2010. http://hdl.handle.net/2263/25711.

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Termites are considered to be major ecosystem engineers in tropical and sub-tropical environments, and fire in savanna systems is regarded as a major and necessary disturbance for the maintenance of biodiversity. However, most fire ecology studies have focused on vegetation dynamics with little attention given to other taxa, especially invertebrates. This thesis has addressed several aspects of savanna termite ecology. First, based on a review of studies examining the relationship between fire ecology and termites, I found that few broad conclusions can be made based on the published literatur
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Tazzo, Ivonete Fátima. "Variação de alguns elementos micrometeorológicos no dossel de plantas de batata." Universidade Federal de Santa Maria, 2005. http://repositorio.ufsm.br/handle/1/5136.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Potato (Solanum tuberosum) crop has many cultivation problems such as pests and the diseases, that settle down in the plants if the environmental donditions are favorable. The more important meteorological elements for infection caused by patógenos are temperature and air humidity. The variation of some micrometeorological elements (the transmitance to the global solar radiation, temperature and air humidity) of a potato canopy, Macaca cv was determined. Two experiments were carried out, the first in the spring, from 15/10 to 0
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