Bibliografías temáticas / Anisotopia

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Literatura académica sobre el tema "Anisotopia"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 1 de febrero de 2022

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Artículos de revistas sobre el tema "Anisotopia"

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Hallows, K. R., C. H. Packman y P. A. Knauf. "Acute cell volume changes in anisotonic media affect F-actin content of HL-60 cells". American Journal of Physiology-Cell Physiology 261, n.º 6 (1 de diciembre de 1991): C1154—C1161. http://dx.doi.org/10.1152/ajpcell.1991.261.6.c1154.

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To investigate the possible role of the cytoskeleton in volume regulatory responses of human promyelocytic leukemic (HL-60) cells, we monitored and modulated the F-actin content of these cells undergoing volume regulation in anisotonic media. Initial volume changes of HL-60 cells suspended in hypertonic media followed a Van't Hoff relationship, and intracellular F-actin content during volume regulatory responses in anisotonic media changed concomitantly as an inverse function of the volume shifts. These F-actin changes were shown to be an explicit function of cell volume and not tonicity of the medium. The data fit with the idea that changes in affinity of actin-binding proteins (ABPs) for actin and/or changes in the overall effective critical concentration of actin occur during acute cell volume changes, producing shifts in the relative amounts of G- and F-actin. Treatment of HL-60 cells with dihydrocytochalasin B (DHB), which perturbs cellular actin assembly, lowered resting levels of intracellular F-actin but did not prevent volume-associated F-actin changes in anisotonic media. Despite the lowered F-actin levels, HL-60 cells in the presence of DHB still undergo normal volume regulatory responses. Thus the absolute amount of intracellular F-actin does not appear to be critical for volume regulation in HL-60 cells.
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Kuang, Kunyan, Maimiti Yiming, Zhaorong Zhu, Pavel Iserovich, Friedrich P. Diecke y Jorge Fischbarg. "Lack of Threshold for Anisotonic Cell Volume Regulation". Journal of Membrane Biology 211, n.º 1 (mayo de 2006): 27–33. http://dx.doi.org/10.1007/s00232-006-0002-9.

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Candia, Oscar A., Lawrence J. Alvarez y Aldo C. Zamudio. "Regulation of water permeability in rabbit conjunctival epithelium by anisotonic conditions". American Journal of Physiology-Cell Physiology 290, n.º 4 (abril de 2006): C1168—C1178. http://dx.doi.org/10.1152/ajpcell.00254.2005.

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Effects of unilateral exposure to anisotonic conditions on diffusional water permeability of the isolated rabbit conjunctiva were determined. A segment of the bulbar-palpebral conjunctiva was mounted between Ussing-type hemichambers under short-circuit conditions. Unidirectional water fluxes ( Jdw) were measured in either direction by adding 3H2O to one hemichamber and sampling from the other. Electrical parameters were measured simultaneously. Jdw were determined under control isosmotic conditions and after introduction of either hyper- or hypotonic solutions against the tear or stromal sides of the preparations. In each of these four separate conditions, the anisotonic medium produced an ∼20–30% reduction in Jdw across the tissue, with the exception that to obtain such reduction with increased tonicity from the stromal side (medium osmolality increased by adding sucrose), conditions presumptively inhibiting regulatory volume increase mechanisms (e.g., pretreatment with amiloride and bumetanide) were also required. All reductions in Jdw elicited by the various anisotonic conditions were reversible on restoration of control tonicity. In experiments in which preparations were pretreated with the protein cross-linking agent glutaraldehyde, anisotonicity-elicited reductions in Jdw were not observed. Such reductions were also not observed in the presence of HgCl2, implying the involvement of aquaporins. However, it is possible that the mercurial may be toxic to the epithelium, preventing the tonicity response. Nevertheless, from concomitant changes in transepithelial electrical resistance, as well as [14C]mannitol fluxes, [14C]butanol fluxes, and Arrhenius plots, arguments are presented that the above effects are best explained as a cell-regulated reduction in membrane water permeability that occurs at the level of water-transporting channels. Presumably both apical and basolateral membranes can downregulate their water permeabilities as part of a protective mechanism to help maintain cell volume.
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Hallows, K. R., C. H. Packman y P. A. Knauf. "Acute cell volume changes in anisotonic media affect F-actin content of HL-60 cells". American Journal of Physiology-Cell Physiology 268, n.º 3 (1 de marzo de 1995): 1. http://dx.doi.org/10.1152/ajpcell.1995.268.3.1-a.

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Page C1160: K. R. Hallows, C. H. Packman, and P. A. Knauf.“Acute cell volume changes in anisotonic media affect F-actin content of HL-60 cells.” The acknowledgments should include the following sentence: K. R. Hallows is a student in the Medical Scientist Training Program funded by National Institute of General Medicine Sciences Grant T32 GM-07356.
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Grinstein, S., W. Furuya y L. Bianchini. "Protein Kinases, Phosphatases, and the Control of Cell Volume". Physiology 7, n.º 5 (1 de octubre de 1992): 232–37. http://dx.doi.org/10.1152/physiologyonline.1992.7.5.232.

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Animal cells regulate their size in isotonic and anisotonic conditions by activating volume-sensitive solute transport systems. Recent evidence suggests that protein phosporylation/dephosphorylation is involved in volume control. These observations are integrated into a model consisting of a single volume-sensing device, a transducing element which may be a protein kinase, and two types of volume change effectors.
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TANAKA, Masataka, Toshiro MATSUMOTO y Takahiro NISHIGUCHI. "Accurate Boundary Element Method for the Static Bending of Stiffened-Anisotopic Plates". Proceedings of the JSME annual meeting 2003.1 (2003): 79–80. http://dx.doi.org/10.1299/jsmemecjo.2003.1.0_79.

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Lahiri, Sayantani. "Anisotopic inflation with a non-abelian gauge field in Gauss-Bonnet gravity". Journal of Cosmology and Astroparticle Physics 2017, n.º 01 (11 de enero de 2017): 022. http://dx.doi.org/10.1088/1475-7516/2017/01/022.

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Bilić, Ivan y Zdenko Kovač. "Macromolecular oxidation in anisotonic suspensions of mouse spleen cells". Cell Biochemistry and Function 24, n.º 3 (2006): 201–7. http://dx.doi.org/10.1002/cbf.1207.

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Claudon, Laurent. "Relevance of the EMG/Grip Relationship in Isometric Anisotonic Conditions". International Journal of Occupational Safety and Ergonomics 9, n.º 2 (enero de 2003): 121–34. http://dx.doi.org/10.1080/10803548.2003.11076558.

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Lohr, J. W. y J. J. Grantham. "Isovolumetric regulation of isolated S2 proximal tubules in anisotonic media." Journal of Clinical Investigation 78, n.º 5 (1 de noviembre de 1986): 1165–72. http://dx.doi.org/10.1172/jci112698.

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Tesis sobre el tema "Anisotopia"

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Hallett, James E. "Nanoscale structure in isotopic and anisotopic low dielectric systems". Thesis, University of Bristol, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.686616.

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Fran?a, George Sand Le?o Ara?jo de. "Estudo s?smico no a?ude Tucunduba, Senador S?, CE". Universidade Federal do Rio Grande do Norte, 1999. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18772.

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Made available in DSpace on 2015-03-13T17:08:21Z (GMT). No. of bitstreams: 1 GeorgeSLAF.pdf: 2410781 bytes, checksum: 6ab634dc538d6826e3c66393e3ca3803 (MD5) Previous issue date: 1999-07-12
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The Tucunduba Dam, is west of Fortaleza, Cear? State. The seismic monitoring of the area, with an analogical station and seven digital stations, had beginning on June 11, 1997. The digital stations, operated from June to November 1997. The data collected in the period of digital monitoring was analyzed for determination of hypocenters, focal mechanisms, and shear-wave anisotropy analysis. For determination of hypocenters, it was possible to find an active zone of nearly 1 km in length, with depth between 4.5 and 5.2 km. A 60AZ/88SE fault plane was determined using the least-squares method and hypocenters of a selected set of 16 earthquakes recorded. Focal mechanisms were determined, in the composite fault plane solution, a strike-slip fault, trending nearly E-W, was found. Single fault plane solutions were obteined to some earthquakes presented mean values of 65 (azimuth), and 80 (dip). Shear-wave anisotropy was found in the data. Polarization directions and travel time delays, between S spliting waves, were determined. It was not possible to obtain any conclusion on the cause of the observed anisotropy. It is not clear if there is correlation between seismicity and mapped faults in the area, although the directions obtained starting from the hipocentros and focal mechanism are they are consistent with directions, observed in the area, photo, topographic and fractures directions observed in the area
o A?ude Tucunduba est? localizado no munic?pio de Senador S?, a aproximadamente 290 km a oeste de Fortaleza - CE. O monitorarnento s?smico da regi?o, por meio de urna rede sismogr?fica local, teve in?cio em 11 de junho de 1997, logo ap?s a ocorr?ncia de um evento com magnitude 3,2 mb, no dia 09 de junho de 1997. O monitorarnento foi realizado com uma esta??o anal?gica (utilizada na determina??o da magnitude com a dura??o e na contagem do n?mero de eventos por dia), e sete esta??es digitais. As esta??es digitais, com tr?s componentes cada, operaram no per?odo de junho a novembro de 1997. Neste trabalho foram analisados os dados coletados pelas esta??es digitais objetivando a determina??o de hipocentros, mecanismos focais e an?lise de anisotropia s?smica. Na determina??o hipocentral utilizou-se o programa HYPO71, com o modelo de semiespa?o, de par?metros iguais a 5,95, para a velocidade da onda P, e 1,69, para a raz?o Entre as velocidades das ondas P e S. Dessa forma, foi poss?vel detectar urna zona ativa, de aproximadamente 1 km de extens?o e profundidade variando de 4,5 a 5,2 km. Com um conjunto de 16 sismos, registrados na mesmas seis esta??es, foi determinado um plano de falha a partir dos hipocentros, pelo m?todo dos m?nimos quadrados, obtendo-se os valores de 60? para o azimute e 88? para o mergulho. A determina??o de mecanismos focais foi feita de duas formas distintas, utilizando-se os programas FPFIT e FOCMEC. Na solu??o do mecanismo composto (FPFIT), encontrou-se uma falha de dire??o aproximadamente E-W (265? para o azimute, 88? para o mergulho), transcorrente, sinistral, com componente normal.Foram determinados v?rios mecanismos individuais (FOCMEC), tendo-se obtido um valor m?dio de 65? para o azimute e 80? para o mergulho. Estimativas preliminares do esfor?o horizontal m?ximo, a partir da dire??o do eixo P, n?o s?o concordantes com valores anteriormente obtidos para sismos ao sul do A?ude Tucunduba. Na regi?o tamb?m foi feito um estudo de anisotropia, onde se verificou a presen?a de anisotropia na propaga??o da onda S, possibilitando a obten??o das dire??es de polariza??es e dos tempos de atraso entre as ondas S divididas, para duas esta??es. A dificuldade de se ter uma boa estimativa para o esfor?o horizontal m?ximo, na regi?o, impossibilitou qualquer conclus?o sobre a causa da anisotropia observada. N?o se pode concluir, de forma clara, que a atividade s?smica possa estar associada diretamente a falhas mapeadas na regi?o. As dire??es do plano de falha pelo ajuste por m?nimos quadrados, FPFIT e FOCMEC (valor m?dio) est?o no intervalo de NE e EW. Estes valores s?o consistentes com as dire??es de fotolineamentos, lineamentos topogr?ficos, positivos e negativos, e de fraturas secas, observadas na regi?o.
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Sinn, Matthew T. (Matthew Thomas). "Surface roughness anisotopy on mismatched InAlAs/InGaAs/InP heterostructures". Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/11457.

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Arrault, Jérôme. "Figures et fonctions fractales : analyse en ondelette isotope et anisotope". Bordeaux 1, 1995. http://www.theses.fr/1995BOR10659.

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Nous etudions quelques aspects de la geometrie fractale a partir de la transformation en ondelettes (to). Nous evaluons les dimensions fractales de quelques agregats bidimensionnels (ex: flocon de neige mathematique, agregats limites par la diffusion) par to isotrope. Nous developpons une version optique sur les bases de la diffraction de fraunhofer. Nous proposons une version etendue du formalisme multifractal (methode des maxima du module de la transformee en ondelettes) qui permet d'etudier les proprietes d'invariance d'echelle des fonctions et mesures en dimension 2. Les exemples traites sont des surfaces fractales et une image de nuages. Par ailleurs, nous developpons une version anisotrope de la to, que nous appliquons a l'identification d'angles remarquables dans les figures fractales
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Farhat, Mohamad. "Contribution à la modélisation 3D du champ électromagnétique dans les supraconducteurs à haute température critique". Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0083/document.

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Les matériaux supraconducteurs présentent des propriétés physiques et géométriques particulières qui exigent des approches de modélisation spatio-temporelle fines, où les méthodes classiques trouvent rapidement leurs limites en termes de convergence, de précision et de temps de calcul. Ce dernier peut être très conséquent, ce qui est incompatible avec les problèmes de dimensionnement et d’optimisation. Dans ce contexte, ce travail a pour objectif de développer des approches de modélisation multiphysique rapides pour le dimensionnement et l’optimisation des systèmes à base de supraconducteurs. Un intérêt particulier est porté pour les méthodes intégrales. Les verrous scientifiques à lever, qui constituent également l’originalité du travail, résident dans l’intégration des lois de comportement E(J) des supraconducteurs dans les schémas numériques de ce type de méthodes. Dans ce travail on développe un modèle numérique afin d’étudier la distribution de la densité de courant et d’estimer les pertes AC dans les supraconducteurs à haute température (HTS). Le modèle développé est basé sur une formulation intégro-différentielle en termes de potentiel vecteur électrique dans les deux domaines fréquentiel et temporel. Une campagne de test est menée afin de valider et de bien cerner les possibilités offertes et les limites de cette approche pour la modélisation des supraconducteurs
Superconducting materials have particular physical and geometric properties that require spatial-temporal modeling approaches fines, where conventional methods quickly reach their limits in terms of convergence, precision and computational time. The latter can be very consistent, which is incompatible with the design and optimization problems. In this context, this work aims to develop rapid multiphysics modeling approaches for the design and optimization of superconductor-based systems. Particular attention is paid to the integral methods. Scientific obstacles to overcome, which also constitute the originality of the work lies in the integration of behavior laws E (J) of superconducting digital patterns of such methods. A numerical model is developed for a rapid computation of eddy currents in multifilamentary high temperature superconductive (HTS) for the evaluation of AC losses. The developed model is based on an integro-differential formulation in terms of the electric vector potential in the frequency and temporal domains. A test campaign is conducted to validate and clearly identify the possibilities and limitations of this approach for modeling superconductors
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Libros sobre el tema "Anisotopia"

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Canada, Atomic Energy of. Mitosis-Like Changes in V79 Cells After Anisotonic Naci Treatment. S.l: s.n, 1985.

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Capítulos de libros sobre el tema "Anisotopia"

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Lionheart, W. R. B. "Geometric Methods for Anisotopic Inverse Boundary Value Problems". En New Analytic and Geometric Methods in Inverse Problems, 337–51. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-08966-8_12.

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Iserovich, Pavel, Peter S. Reinach, Hua Yang y Jorge Fischbarg. "A Novel Approach to Resolve Cellular Volume Responses to an Anisotonic Challenge". En Lacrimal Gland, Tear Film, and Dry Eye Syndromes 2, 687–92. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5359-5_98.

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LOUCAS, B. D. y J. S. BEDFORD. "EARLY RADIATION DAMAGE MODIFICATION BY ANISOTONIC TREATMENT IN PREMATURELY CONDENSED INTERPHASE (Go) CHROMOSOMES". En Radiation Research: A Twentieth-century Perspective, 412. Elsevier, 1991. http://dx.doi.org/10.1016/b978-0-12-168561-4.50163-3.

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Actas de conferencias sobre el tema "Anisotopia"

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Protasov, M. y I. Borodin. "Anisotopic Gaussian Beam Imaging of Walk-away VSP Data". En 74th EAGE Conference and Exhibition incorporating EUROPEC 2012. Netherlands: EAGE Publications BV, 2012. http://dx.doi.org/10.3997/2214-4609.20148494.

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Protasov, M., V. Tcheverda, N. Isakov y A. Pravduhin. "3D True-Amplitude Anisotopic Beam Depth Migration of 3D Irregular Data". En International Petroleum Technology Conference. International Petroleum Technology Conference, 2016. http://dx.doi.org/10.2523/iptc-18655-ms.

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Protasov, M., I. Silvestrov, V. Tchevreda, N. Isakov y A. Pravduhin. "3D Anisotopic Gaussian Beam True-amplitude Depth Imaging of Seismic Data". En 78th EAGE Conference and Exhibition 2016. Netherlands: EAGE Publications BV, 2016. http://dx.doi.org/10.3997/2214-4609.201601208.

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Luu, Gia Thien, Philippe Ravier y Olivier Buttelli. "Validation of the time delay estimators applied to the surface electromyography signals during isometric isotonic and isometric anisotonic contraction". En 2015 International Conference on Advanced Technologies for Communications (ATC). IEEE, 2015. http://dx.doi.org/10.1109/atc.2015.7388307.

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Informes sobre el tema "Anisotopia"

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Relation to fracture orientation to linear terrain features, anisotopic transmissivity, and seepage to streams in the karst Prairie du Chien Group, southeastern Minnesota. US Geological Survey, 1995. http://dx.doi.org/10.3133/wri944146.

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