Relevant bibliographies by topics / L-domain

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  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
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Academic literature on the topic 'L-domain'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "L-domain"

1

Ott, David E., Lori V. Coren, Tracy D. Gagliardi, and Kunio Nagashima. "Heterologous Late-Domain Sequences Have Various Abilities To Promote Budding of Human Immunodeficiency Virus Type 1." Journal of Virology 79, no. 14 (July 2005): 9038–45. http://dx.doi.org/10.1128/jvi.79.14.9038-9045.2005.

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ABSTRACT Retroviral late (L) domains present within Gag act in conjunction with cellular proteins to efficiently release virions from the surface of the cell. Three different critical core sequences have been identified as required elements for L-domain function: PPPY, PTAP (also PSAP), and YPDL, with different retroviruses utilizing one or two of these core sequences. The human immunodeficiency virus type 1 (HIV-1) L domain is centered around a PTAP sequence in the p6 region of Gag. To assess the ability of heterologous L-domain sequences to be functionally interchanged for those in full-length HIV-1, we produced a series of constructs that replaced PTAP-containing p6Gag sequences with those of PPPY- or YPDL-based L domains. While previous studies had found that L domains are interchangeable in other retroviruses, most of the sequences introduced into p6Gag failed to substitute for PTAP-mediated L-domain function. One exception was the 11-amino-acid p2b sequence of Rous sarcoma virus (RSV) Gag, which could fully restore HIV-1 budding, while a PPPPY sequence exchange alone did not. This suggests that the RSV L domain consists of more than simply its core L-domain sequence. The HIV-p2b chimera was as infectious as the wild type, produced normal virions, and was sensitive to proteasome inhibitors. These results show that L-domain sequences are not necessarily interchangeable. Thus, HIV-1 Gag might have a more stringent requirement for L-domain function than the other retroviruses previously studied.
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Patnaik, Akash, and John W. Wills. "In Vivo Interference of Rous Sarcoma Virus Budding by cis Expression of a WW Domain." Journal of Virology 76, no. 6 (March 15, 2002): 2789–95. http://dx.doi.org/10.1128/jvi.76.6.2789-2795.2002.

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ABSTRACT For all enveloped viruses, the actual mechanism by which nascent virus particles separate or “pinch off” from the cell surface is largely unknown. In the case of retroviruses, the Gag protein drives the budding process, and the virus release step is directed by the late (L) assembly domain within Gag. A PPPPY motif within the L domain of Rous sarcoma virus (RSV) was previously characterized as being critical for the release of virions and shown to interact in vitro with the WW domain of Yes-associated protein (Yap). To determine whether WW domain-L domain interactions can occur in vivo, we attempted to interfere with the host cell machinery normally recruited to the site of budding by inserting this WW domain in different locations within Gag. At a C-terminal location, the WWYap domain had no effect on budding, suggesting that the intervening I domains (which provide the major region of Gag-Gag interaction) prevent its access to the L domain. When positioned on the other side of the I domains closer to the L domain, the WWYap domain resulted in a dramatic interference of particle release, and confocal microscopy revealed a block to budding on the plasma membrane. Budding was restored by attachment of the heterologous L domain of human immunodeficiency virus type 1 Gag, which does not bind WWYap. These findings suggest that cis expression of WW domains can interfere with RSV particle release in vivo via specific, high-affinity interactions at the site of assembly on the plasma membrane, thus preventing host factor accessibility to the L domain and subsequent virus-cell separation. In addition, they suggest that L domain-specific host factors function after Gag proteins begin to interact.
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Martin-Serrano, Juan, David Perez-Caballero, and Paul D. Bieniasz. "Context-Dependent Effects of L Domains and Ubiquitination on Viral Budding." Journal of Virology 78, no. 11 (June 1, 2004): 5554–63. http://dx.doi.org/10.1128/jvi.78.11.5554-5563.2004.

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ABSTRACT Many enveloped viruses encode late assembly domains, or L domains, that facilitate virion egress. PTAP-type L domains act by recruiting the ESCRT-I (endosomal sorting complex required for transport I) component Tsg101, and YPXL/LXXLF-type L domains recruit AIP-1/ALIX, both of which are class E vacuolar protein sorting (VPS) factors, normally required for the generation of vesicles within endosomes. The binding cofactors for PPXY-type L domains have not been unambiguously resolved but may include Nedd4-like ubiquitin ligases. Largely because they act as autonomous binding sites for host factors, L domains are generally transferable and active in a context-independent manner. Ebola virus matrix protein (EbVP40) contains two overlapping L-domain motifs within the sequence ILPTAPPEYMEA. Here, we show that both motifs are required for efficient EbVP40 budding. However, upon transplantation into two different retroviral contexts, the relative contributions of the PTAP and PPEY motifs differ markedly. In a murine leukemia virus carrying the EbVP40 sequence, both motifs contributed to overall L domain activity, and budding proceeded in a partly Tsg101-independent manner. Conversely, when transplanted into the context of human immunodeficiency virus type 1 (HIV-1), EbVP40 L-domain activity was entirely due to a PTAP-Tsg101 interaction. In fact, a number of PPXY-type L domains were inactive in the context of HIV-1. Surprisingly, PTAP and YPXL-type L domains that simulated HIV-1 budding reduced the amount of ubiquitin conjugated to Gag, while inactive PPXY-type L domains increased Gag ubiquitination. These observations suggest that active L domains recruit deubiquitinating enzymes as a consequence of class E VPS factor recruitment. Moreover, context-dependent L-domain function may reflect distinct requirements for host functions during the morphogenesis of different viral particles or the underlying presence of additional, as yet undiscovered L domains.
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Li, Feng, Chaoping Chen, Bridget A. Puffer, and Ronald C. Montelaro. "Functional Replacement and Positional Dependence of Homologous and Heterologous L Domains in Equine Infectious Anemia Virus Replication." Journal of Virology 76, no. 4 (February 15, 2002): 1569–77. http://dx.doi.org/10.1128/jvi.76.4.1569-1577.2002.

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ABSTRACT We have previously demonstrated by Gag polyprotein budding assays that the Gag p9 protein of equine infectious anemia virus (EIAV) utilizes a unique YPDL motif as a late assembly domain (L domain) to facilitate release of the budding virus particle from the host cell plasma membrane (B. A. Puffer, L. J. Parent, J. W. Wills, and R. C. Montelaro, J. Virol. 71:6541-6546, 1997). To characterize in more detail the role of the YPDL L domain in the EIAV life cycle, we have examined the replication properties of a series of EIAV proviral mutants in which the parental YPDL L domain was replaced by a human immunodeficiency virus type 1 (HIV-1) PTAP or Rous sarcoma virus (RSV) PPPY L domain in the p9 protein or by proviruses in which the parental YPDL or HIV-1 PTAP L domain was inserted in the viral matrix protein. The replication properties of these L-domain variants were examined with respect to Gag protein expression and processing, virus particle production, and virus infectivity. The data from these experiments indicate that (i) the YPDL L domain of p9 is required for replication competence (assembly and infectivity) in equine cell cultures, including the natural target equine macrophages; (ii) all of the functions of the YPDL L domain in the EIAV life cycle can be replaced by replacement of the parental YPDL sequence in p9 with the PTAP L-domain segment of HIV-1 p6 or the PPPY L domain of RSV p2b; and (iii) the assembly, but not infectivity, functions of the EIAV proviral YPDL substitution mutants can be partially rescued by inclusions of YPDL and PTAP L-domain sequences in the C-terminal region of the EIAV MA protein. Taken together, these data demonstrate that the EIAV YPDL L domain mediates distinct functions in viral budding and infectivity and that the HIV-1 PTAP and RSV PPPY L domains can effectively facilitate these dual replication functions in the context of the p9 protein. In light of the fact that YPDL, PTAP, and PPPY domains evidently have distinct characteristic binding specificities, these observations may indicate different portals into common cellular processes that mediate EIAV budding and infectivity, respectively.
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Kimura, Yoko, Mirai Tanigawa, Junko Kawawaki, Kenji Takagi, Tsunehiro Mizushima, Tatsuya Maeda, and Keiji Tanaka. "Conserved Mode of Interaction between Yeast Bro1 Family V Domains and YP(X) n L Motif-Containing Target Proteins." Eukaryotic Cell 14, no. 10 (July 6, 2015): 976–82. http://dx.doi.org/10.1128/ec.00091-15.

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ABSTRACT Yeast Bro1 and Rim20 belong to a family of proteins which possess a common architecture of Bro1 and V domains. Alix and His domain protein tyrosine phosphatase (HD-PTP), mammalian Bro1 family proteins, bind YP(X) n L ( n = 1 to 3) motifs in their target proteins through their V domains. In Alix, the Phe residue, which is located in the hydrophobic groove of the V domain, is critical for binding to the YP(X) n L motif. Although the overall sequences are not highly conserved between mammalian and yeast V domains, we show that the conserved Phe residue in the yeast Bro1 V domain is important for binding to its YP(X) n L-containing target protein, Rfu1. Furthermore, we show that Rim20 binds to its target protein Rim101 through the interaction between the V domain of Rim20 and the YPIKL motif of Rim101. The mutation of either the critical Phe residue in the Rim20 V domain or the YPIKL motif of Rim101 affected the Rim20-mediated processing of Rim101. These results suggest that the interactions between V domains and YP(X) n L motif-containing proteins are conserved from yeast to mammalian cells. Moreover, the specificities of each V domain to their target protein suggest that unidentified elements determine the binding specificity.
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Strack, Bettina, Arianna Calistri, and Heinrich G. Göttlinger. "Late Assembly Domain Function Can Exhibit Context Dependence and Involves Ubiquitin Residues Implicated in Endocytosis." Journal of Virology 76, no. 11 (June 1, 2002): 5472–79. http://dx.doi.org/10.1128/jvi.76.11.5472-5479.2002.

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ABSTRACT Retroviral Gag polyproteins contain regions that promote the separation of virus particles from the plasma membrane and from each other. These Gag regions are often referred to as late assembly (L) domains. The L domain of human immunodeficiency virus type 1 (HIV-1) is in the C-terminal p6 gag domain and harbors an essential P(T/S)APP motif, whereas the L domains of oncoretroviruses are in the N-terminal half of the Gag precursor and have a PPXY core motif. We recently observed that L domains induce the ubiquitination of a minimal HIV-1 Gag construct and that point mutations which abolish L domain activity prevent Gag ubiquitination. In that study, a peptide from the Ebola virus L domain with overlapping P(T/S)APP and PPXY motifs showed exceptional activity in promoting Gag ubiquitination and the release of virus-like particles. We now show that a substitution which disrupts the PPXY motif but leaves the P(T/S)APP motif intact abolishes L domain activity in the minimal Gag context, but not in the context of a near full-length HIV-1 Gag precursor. Our results reveal that the P(T/S)APP motif does not function autonomously and indicate that the HIV-1 nucleocapsid-p1 region, which is proximal to p6 gag , can cooperate with the conserved L domain core motif. We have also examined the effects of ubiquitin mutants on virus-like particle production, and the results indicate that residues required for the endocytosis function of ubiquitin are also involved in virus budding.
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Ching, G. Y., and R. K. Liem. "Analysis of the roles of the head domains of type IV rat neuronal intermediate filament proteins in filament assembly using domain-swapped chimeric proteins." Journal of Cell Science 112, no. 13 (July 1, 1999): 2233–40. http://dx.doi.org/10.1242/jcs.112.13.2233.

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Type IV neuronal intermediate filament proteins consist of alpha-internexin, which can self-assemble into filaments and the neurofilament triplet proteins, which are obligate heteropolymers, at least in rodents. These IF proteins therefore provide good systems for elucidating the mechanism of intermediate filament assembly. To analyze the roles of the head domains of these proteins in contributing to their differential assembly properties, we generated chimeric proteins by swapping the head domains between rat alpha-internexin and either rat NF-L or NF-M and examined their assembly properties in transfected cells that lack their own cytoplasmic intermediate filament network. Lalphaalpha and Malphaalpha, the chimeric proteins generated by replacing the head domain of alpha-internexin with those of NF-L and NF-M, respectively, were unable to self-assemble into filaments. In contrast, alphaLL, a chimeric NF-L protein generated by replacing the head domain of NF-L with that of alpha-internexin, was able to self-assemble into filaments, whereas MLL, a chimeric NF-L protein containing the NF-M head domain, was unable to do so. These results demonstrate that the alpha-internexin head domain is essential for alpha-internexin's ability to self-assemble. While coassembly of Lalphaalpha with NF-M and coassembly of Malphaalpha with NF-L resulted in formation of filaments, coassembly of Lalphaalpha with NF-L and coassembly of Malphaalpha with NF-M yielded punctate patterns. These coassembly results show that heteropolymeric filament formation requires that one partner has the NF-L head domain and the other partner has the NF-M head domain. Thus, the head domains of rat NF-L and NF-M play important roles in determining the obligate heteropolymeric nature of filament formation. The data obtained from these self-assembly and coassembly studies provide some new insights into the mechanism of intermediate filament assembly.
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Kansas, GS, KB Saunders, K. Ley, A. Zakrzewicz, RM Gibson, BC Furie, B. Furie, and TF Tedder. "A role for the epidermal growth factor-like domain of P-selectin in ligand recognition and cell adhesion." Journal of Cell Biology 124, no. 4 (February 15, 1994): 609–18. http://dx.doi.org/10.1083/jcb.124.4.609.

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The selectin family of adhesion molecules mediates the initial interactions of leukocytes with endothelium. The extracellular region of each selectin contains an amino-terminal C-type lectin domain, followed by an EGF-like domain and multiple short consensus repeat units (SCR). Previous studies have indirectly suggested a role for each of the extracellular domains of the selectins in cell adhesion. In this study, a panel of chimeric selectins created by exchange of domains between L- and P-selectin was used to directly examine the role of the extracellular domains in cell adhesion. Exchange of only the lectin domains between L- and P-selectin conferred the adhesive and ligand recognition functions of the lectin domain of the parent molecule. However, chimeric selectins which contained both the lectin domain of L-selectin and the EGF-like domain of P-selectin exhibited dual ligand-binding specificity. These chimeric proteins supported adhesion both to myeloid cells and to high endothelial venules (HEV) of lymph nodes and mesenteric venules in vivo. Exchange of the SCR domains had no detectable effect on receptor function or specificity. Thus, the EGF-like domain of P-selectin may play a direct role in ligand recognition and leukocyte adhesion mediated by P-selectin, with the lectin plus EGF-like domains collectively forming a functional ligand recognition unit.
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Yarotskyy, Viktor, Guofeng Gao, Blaise Z. Peterson, and Keith S. Elmslie. "Domain III regulates N-type (CaV2.2) calcium channel closing kinetics." Journal of Neurophysiology 107, no. 7 (April 1, 2012): 1942–51. http://dx.doi.org/10.1152/jn.00993.2011.

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CaV2.2 (N-type) and CaV1.2 (L-type) calcium channels gate differently in response to membrane depolarization, which is critical to the unique physiological functions mediated by these channels. We wondered if the source for these differences could be identified. As a first step, we examined the effect of domain exchange between N-type and L-type channels on activation-deactivation kinetics, which were significantly different between these channels. Kinetic analysis of chimeric channels revealed N-channel-like deactivation for all chimeric channels containing N-channel domain III, while activation appeared to be a more distributed function across domains. This led us to hypothesize that domain III was an important regulator of N-channel closing. This idea was further examined with R-roscovitine, which is a trisubstituted purine that slows N-channel deactivation by exclusively binding to activated N-channels. L-channels lack this response to roscovitine, which allowed us to use N-L chimeras to test the role of domain III in roscovitine modulation of N-channel deactivation. In support of our hypothesis, all chimeric channels containing the N-channel domain III responded to roscovitine with slowed deactivation, while those chimeric channels with L-channel domain III did not. Thus a combination of kinetic and pharmacological evidence supports the hypothesis that domain III is an important regulator of N-channel closing. Our results support specialization of gating functions among calcium channel domains.
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Le Blanc, Isabelle, Marie-Christine Prévost, Marie-Christine Dokhélar, and Arielle R. Rosenberg. "The PPPY Motif of Human T-Cell Leukemia Virus Type 1 Gag Protein Is Required Early in the Budding Process." Journal of Virology 76, no. 19 (October 1, 2002): 10024–29. http://dx.doi.org/10.1128/jvi.76.19.10024-10029.2002.

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ABSTRACT Domains required late in the virus budding process (L domains) have been identified in the Gag proteins of a number of retroviruses. Here we show that the human T-cell leukemia virus type 1 candidate L domain motif PPPY is indeed required for virus production. Strikingly, however, mutation of this motif arrested virus particles at an earlier stage in the budding process than was seen for mutation of the L domain motifs thus far described for retroviruses. In view of the exchangeability of such domains, we propose that the retrovirus budding process may involve a continuum from bud formation to membrane fission.
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Dissertations / Theses on the topic "L-domain"

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Thomas, Karen-Anne. "Characterisation of a bivalent Ig-binding domain from Peptostreptococcal protein L." Thesis, University of Southampton, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.409612.

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O'Neill, Jason Charles Walker. "Structural studies on the B1 domain of protein L : biophysical affects of single site mutations, 3D-domain swapping, and computational redesign /." Thesis, Connect to this title online; UW restricted, 2001. http://hdl.handle.net/1773/4990.

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Cossins, Aimee Joanne. "Characterisation of the binding interaction between Peptostreptococcal protein L and a recombinant domain antibody." Thesis, University of Southampton, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433883.

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Beckingham, Jennifer Ann. "Protein engineering and characterisation of a single Ig-binding domain of Protein L. from Peptostreptococcus magnus." Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241786.

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Calarota, Gabriele. "Domain-specific word embeddings for ICD-9-CM classification." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/16714/.

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In this work we evaluate domain-speci�c embedding models induced from textual resources in the medical domain. The International Classi�cation of Diseases (ICD) is a standard, broadly used classi�cation system, that codes a large number of speci�c diseases, symptoms, injuries and medical procedures into numerical classes. Assigning a code to a clinical case means classifying that case into one or more particular discrete class, hence allowing further statistics studies and automated calculations. The possibility to have a discrete code instead of a text in natural language is intuitively a great advantage for data processing systems. The use of such classi�cation is becoming increasingly important for, but not limited to, economic and policy-making purposes. Experiments show that domain-speci�c word embeddings, instead of a general one, improves classi�ers in terms of frequency similarities between words.
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Nevoltris, Damien. "Développement des ligands pour l' étude des récepteurs GPCR, Tyrosine Kinase, basée sur l' utilisation de simple domaine d' anticorps de lamas." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4063.

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La recherche de nouvelles molécules à visée thérapeutique ou diagnostic ciblant les récepteurs membranaires incluant les RCPGs, les récepteurs à tyrosine kinase et les canaux ioniques sont au coeur des recherches investies par les entreprises pharmaceutiques. Dans ce projet nous avons étudié et caractérisé des domaines variables de chaîne lourde d'anticorps de lamas (sdAbs) qui peuvent contourner certaines limites liées à l'utilisation des anticorps monoclonaux ou des petites molécules. En effet, de par leurs particularités structurales qui les rendent particulièrement intéressants en termes de stabilité, d'affinité et de reconnaissance d'antigène, les sdAbs représentent etre une alternative prométeuse. Dans ce manuscrit sont exposés les travaux effectués sur les récepteurs aux tyrosines kinases appartenant à la famille des ErbBs et les récepteurs au glutamate mGluRs (RCPG). En plus d'avoir sélectionné des sdAbs hautement spécifiques de ces différents antigènes, ces molécules ont également montré des caractéristiques très étonnantes et inattendues. En effet, la majeure partie des sdAbs sélectionnés présentent une spécificité pour une conformation du récepteur particulière (forme active ou inactive). Cette particularité très pertinente nous ouvre un spectre d'application très diversifié, car elle permet de cibler et d'analyser les récepteurs dans ces différents états d'activation. Ajouté à cela, certains sdAbs possèdent une activité de modulateur allostérique, voir même présentent un effet agoniste. Ces résultats très encourageants nous ouvrent de nouvelles perspectives, et ces molécules représentent une nouvelle approche pour la modulation et l'étude des ces récepteurs
The research for new therapeutic or diagnostic molecules targeting membrane receptors, including GPCRs, tyrosine kinase receptors and ion channels are the heart of the research invested by pharmaceutical companies. In this project we used the variable domain of llama antibody heavy chain also called single domain antibodies (sdAbs) that can bypass some limitations to the use of monoclonal antibodies or small molecules. Indeed, because of their structural features that make them particularly interesting in terms of stability, affinity and antigen recognition, sdAbs represent a very promising candidates that can be used in various fiels of application: as fluorescent probes , screening tools , or therapeutic molecules. In this manuscript are exposed the work performed on the tyrosine kinases receptor belonging to the ErbBs family and metabotropic glutamate receptors, mGluRs (GPCRs).We selected very highly specific sdAbs directed against antigen of interest, but these molecules have also shown very surprising and unexpected particularities. Indeed, most of the selected sdAbs exhibit specificity for a particular conformation of the receptor (active or inactive form). This very relevant feature opens an highly diversified application spectrum, because it allows to identify and analyze these receptors in different states of activation. Added to this, some sdAbs present an allosteric modulator activity, or even present an agonist effect. These encouraging results open up new perspectives, and these molecules represent a new approach for modulation and study of these membrane receptors
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Hohenstatt, Mareike L. [Verfasser]. "Functional Analysis of SCI1 - A PWWP domain protein involved in Polycomb group mediated gene regulation in Arabidopsis / Mareike L. Hohenstatt." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2012. http://d-nb.info/1023946963/34.

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Renaud-Young, Margaret. "Structure function study of L-CAM, insight into the role of the first extracellular domain in the trans cell-cell interaction." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ60490.pdf.

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Chaves, Dayane de Souza. "Dynamique de parois chirales dans les multicouches magnétiques avec anisotropie perpendiculaire." Thesis, Université Grenoble Alpes (ComUE), 2018. http://www.theses.fr/2018GREAY019/document.

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L'objectif de cette thèse a été d'étudier la dynamique de parois de domaines dans des couches minces magnétiques ayant anisotropie perpendiculaire, dans un empilement non-centrosymétrique. Dans ce type de système la compétition entre l'interaction d'échange de Heisenberg et un terme d'échange antisymétrique appelé interaction Dzyaloshinskii-Moriya interfaciale, favorise des textures magnétiques non colinéaires avec une chiralité définie, comme les parois de Néel chirales et les skyrmions. Dans ce travail nous nous sommes intéressés à la dynamique induite par un champ magnétique ou un courant électrique de parois Néel chirales dans une tricouches constituée d'une fine couche de cobalt déposée sur du platine, et recouverte par un oxyde.Nous avons démontré que la structure statique et la dynamique des parois est fortement impactée par la présence de la DMI. La DMI favorise une structure Néel avec une chiralité bien définie (plutôt que la structure de Bloch trouvé en général dans des systèmes symétriques). En comparant des parois dans Pt/Co/Pt (DMI=0) et Pt/Co/AlOx (DMI forte) nous avons montré que en la présence de DMI les parois de domaines peuvent être déplacées plus efficacement avec un champ magnétique. La stabilisation de la structure interne de la paroi par la DMI déplace le régime precessionnel à de plus hauts champs magnétiques et permet d'obtenir des vitesses importantes.En opposition à ce que prédisent les modèles 1D, nous montrons que en la présence de fort DMI la vitesse de paroi sature après le champ de Walker, et que la vitesse de saturation est proportionnelle au rapport entre la force de la DMI et l'aimantation à saturation (D/Ms). L'augmentation de la vitesse de saturation dans des systèmes avec faible Ms a été démontrée en comparant la dynamique de parois dans Pt/Co/GdOx et Pt/Co/Gd. Ceci implique aussi que en connaissant Ms, la mesure de la vitesse de saturation fournit une méthode originale pour quantifier l'interaction Dzyaloshinskii-Moriya interfaciale, comme nous montrons dans ce travail. Cette méthode a été utilisée pour mesurer la DMI dans des tricouches Pt/Co/AlOx avec oxydation variable de l'interface supérieure du Co. Nous montrons que en plus de la forte DMI de l'interface Pt/Co, l'interaction Co/oxyde contribue avec une DMI du même signe, la force de laquelle dépend du dégrée d'oxydation de l'interface. Nous observons aussi que cette DMI est proportionnelle à l'anisotropie magnétique perpendiculaire, ce qui suggère que les deux effets ont une origine commune. Pour finir, nous avons montré des résultats préliminaires de dynamique de parois induite par champ et courant dans des systèmes ferrimagnétiques GdCo. Si d'une part près de la compensation les parois de domaines dans des tricouches Pt/GdCo/Ta peuvent être déplacées seulement avec des champs très forts, d'autre part le courant est très efficace et les courants de dépiégeage très faibles. Nous avons attribué cet effet à la dépendance en 1/Ms du couple de spin-orbite qui agit sur l'aimantation
The aim of this thesis has been to study domain wall dynamics in magnetic thin films with perpendicular magnetic anisotropy embedded in a non centrosymmetric stack. In this kind of system the competition between the symmetric Heisenberg exchange and an antisymmetric exchange term, called the interfacial Dzyaloshinskii-Moriya interaction (DMI), favours non collinear magnetic textures with a fixed chirality, like chiral Néel domain walls and skyrmions. In this work we have been interested in the field and current-driven dynamics of chiral Néel walls in trilayer stacks, typically consisting of a thin Co film deposited on Pt and capped with an oxide.We have shown that the statics and dynamics of a domain wall (DW) is strongly affected by the DMI. The DMI favours Néel internal structure (rather than the Bloch structure usually found in symmetric systems) with a fixed chirality. By comparing DWs in Pt/Co/Pt (no DMI) and Pt/Co/AlOx (strong DMI), we have shown that in the presence of DMI, DWs can be moved more efficiently by a magnetic field. The stabilization of the internal DW structure by the DMI allows the precessional regime to be pushed to large magnetic fields and large velocities to be reached.Opposite to what is predicted by 1D models we show that in the presence of DMI, the DW velocity saturates after the Walker field, and that the saturation velocity is proportional to the ratio of the DMI strength and the saturation magnetization (D/Ms). The enhancement of the saturation velocity in systems with reduced Ms is shown by comparing DW dynamics in Pt/Co/GdOx and Pt/Co/Gd stacks. This also means that, knowing Ms, measuring the DW saturation velocity provides an original method to quantify the interfacial Dzyaloshinskii-Moriya interaction, as we show in this work.This method has been used to measure the DMI interaction in Pt/Co/AlOx trilayers in which the top Co interface presents a varying degree of oxidation. We show that besides the strong DMI at the Pt/Co interface, the Co/oxide interface also provides a DMI contribution of the same sign, whose strength depends on the degree of oxidation of the Co/AlOx interface. We also observe that this DMI scales with the perpendicular magnetic anisotropy, which suggest a common origin for the two effects. Finally we have shown preliminary results of field- and current-driven dynamics of DWs in a ferrimagnetic system (GdCo). While close to the compensation composition domain walls in Pt/GdCo/Ta trilayers can be moved to high velocities only by very high magnetic fields, the current driven dynamics is very efficient and depinning currents low. This effect is attributed to the 1/ Ms dependence of the spin-orbit torque acting on the DW magnetization
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Oberkampf, Heiner [Verfasser], and Bernhard L. [Akademischer Betreuer] Bauer. "Integrated representation of clinical data and medical knowledge: an ontology-based approach for the radiology domain / Heiner Oberkampf. Betreuer: Bernhard L. Bauer." Augsburg : Universität Augsburg, 2016. http://d-nb.info/1113534788/34.

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Books on the topic "L-domain"

1

VA Lakeside Medical Center (Chicago, Ill.). VA Lakeside Medical Center.: The Domain if Joseph L Moore. Chicago, IL: The Center, 1988.

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Calogero, Mario. L' occupazione acquisitiva. Milano: A. Giuffrè, 1996.

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L' expropriation pour cause d'utilité publique. Paris: Harmattan, 2003.

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Vignale, Mario. L' assetto attuale dell'espropriazione per pubblica utilità. Napoli: Jovene, 1991.

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Société des anglicistes de l'enseignement supérieur. Congrès. L' anaphore: Domaine anglais. [Saint-Etienne]: Université Jean Monnet-Saint-Etienne, Centre interdisciplinaire d'études et de recherche sur l'expression contemporaine, 1989.

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Centofanti, Nicola. L' espropriazione per pubblica utilità. Milano: Giuffrè, 1999.

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Vogel, Gaston. L' expropriation pour cause d'utilité publique en droit luxembourgeois. Bruxelles: Larcier, 2003.

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Cavaillé, Fabienne. L' expérience de l'expropriation: Appropriation et expropriation de l'espace. Paris: ADEF, Association des études foncières, 1999.

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Conti, Roberto. L' occupazione acquisitiva: Tutela della proprietà e dei diritti umani. Milano: Giuffrè, 2006.

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Ferbos, Jacques. L' expropriation et l'évaluation des biens. 5th ed. Paris: Editions du Moniteur, 1985.

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Book chapters on the topic "L-domain"

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Mayr, Heinrich C., Fadi Al Machot, Judith Michael, Gert Morak, Suneth Ranasinghe, Vladimir Shekhovtsov, and Claudia Steinberger. "HCM-L: Domain-Specific Modeling for Active and Assisted Living." In Domain-Specific Conceptual Modeling, 527–52. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39417-6_24.

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Köhne, Matthias. "Maximal L p -Regularity in a Bounded Smooth Domain." In Lp-Theory for Incompressible Newtonian Flows, 127–50. Wiesbaden: Springer Fachmedien Wiesbaden, 2013. http://dx.doi.org/10.1007/978-3-658-01052-2_7.

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Srinivasan, K., and M. Ramasubba Reddy. "Wavelet-Domain L ∞ -Constrained Two-Stage Near-Lossless EEG Coder." In Communications in Computer and Information Science, 76–80. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-12214-9_14.

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van Heerdt, Gerco, Clemens Kupke, Jurriaan Rot, and Alexandra Silva. "Learning Weighted Automata over Principal Ideal Domains." In Lecture Notes in Computer Science, 602–21. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45231-5_31.

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AbstractIn this paper, we study active learning algorithms for weighted automata over a semiring. We show that a variant of Angluin’s seminal $$\mathtt {L}^{\!\star }$$ L ⋆ algorithm works when the semiring is a principal ideal domain, but not for general semirings such as the natural numbers.
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Fulgencio, Rheadel G., and Olivier Guibé. "Quasilinear Elliptic Problems in a Two-Component Domain with L 1 Data." In Emerging Problems in the Homogenization of Partial Differential Equations, 59–83. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-62030-1_4.

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Zhao, Jinning, Rong Ma, Bin Hu, Guoping Gao, Lele He, and Xiaolong Tian. "Frequency Domain and Time Domain Study of a Novel Compact CPW Fed Monopole UWB Antenna with L Shaped Slots for Band Notched Characteristics." In Human Centered Computing, 567–77. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31854-7_51.

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Schep, Anton R. "When is the Optimal Domain of a Positive Linear Operator a Weighted L 1-space?" In Vector Measures, Integration and Related Topics, 361–69. Basel: Birkhäuser Basel, 2009. http://dx.doi.org/10.1007/978-3-0346-0211-2_33.

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Gogovi, Gideon K. "Structural Exploration of Rift Valley Fever Virus L Protein Domain in Implicit and Explicit Solvents by Molecular Dynamics." In Advances in Computer Vision and Computational Biology, 759–74. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71051-4_59.

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Fedorov, Sergei. "Angle Between Subspaces of Analytic and Antianalytic Functions in Weighted L 2 Space on the Boundary of a Multiply Connected Domain." In Operator Theory, System Theory and Related Topics, 229–56. Basel: Birkhäuser Basel, 2001. http://dx.doi.org/10.1007/978-3-0348-8247-7_11.

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Zhang, Guo-Qiang. "Disjunctive systems and L-Domains." In Automata, Languages and Programming, 284–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 1992. http://dx.doi.org/10.1007/3-540-55719-9_81.

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Conference papers on the topic "L-domain"

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Yan, Haitao, and Weining Wang. "Terhertz time-domain spectroscopy of L-Glutathione." In Fourth International Conference on Photonics and Imaging in Biology and Medicine, edited by Kexin Xu, Qingming Luo, Da Xing, Alexander V. Priezzhev, and Valery V. Tuchin. SPIE, 2006. http://dx.doi.org/10.1117/12.710679.

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Jalani, Siti Aishah, and Nazlina Ibrahim. "Mutation of domain III and domain VI in L gene conserved domain of Nipah virus." In THE 2016 UKM FST POSTGRADUATE COLLOQUIUM: Proceedings of the Universiti Kebangsaan Malaysia, Faculty of Science and Technology 2016 Postgraduate Colloquium. Author(s), 2016. http://dx.doi.org/10.1063/1.4966728.

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Meng, Zhong, Hu Hu, Jinyu Li, Changliang Liu, Yan Huang, Yifan Gong, and Chin-Hui Lee. "L-Vector: Neural Label Embedding for Domain Adaptation." In ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2020. http://dx.doi.org/10.1109/icassp40776.2020.9053300.

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Varela-Benitez, Jose Luis, Francisco Gallegos-Funes, Volodymyr Ponomaryov, and Jose Manuel de la Rosa Vazquez. "RM L-Filters in Wavelet Domain for Image Processing Applications." In 2007 Sixth Mexican International Conference on Artificial Intelligence, Special Session, MICAI. IEEE, 2007. http://dx.doi.org/10.1109/micai.2007.22.

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Yoshizawa, Shin, and Hideo Yokota. "Fast L1 Gaussian convolution via domain splitting." In 2014 IEEE International Conference on Image Processing (ICIP). IEEE, 2014. http://dx.doi.org/10.1109/icip.2014.7025588.

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Selva, J. "Optimal variable fractional delay filters in time-domain L-infinity norm." In ICASSP 2009 - 2009 IEEE International Conference on Acoustics, Speech and Signal Processing. IEEE, 2009. http://dx.doi.org/10.1109/icassp.2009.4960348.

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Barnard, R., and S. Beydoun. "Robust feedback design: a time-domain fixed-point approach in L∞." In 1991 American Control Conference. IEEE, 1991. http://dx.doi.org/10.23919/acc.1991.4791796.

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Wenhua Yu and R. Mittra. "Benchmark of Parallel Finite Difference Time Domain on IBM BlueGene/L System." In 2006 IEEE Antennas and Propagation Society International Symposium. IEEE, 2006. http://dx.doi.org/10.1109/aps.2006.1711500.

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Gallegos-Funes, F. J., M. G. Beltran-Campos, R. Cruz-Santiago, and V. I. Ponomaryov. "Noise suppression by use the rank M-type L-filter in the wavelet domain." In 2010 International Kharkov Symposium on Physics and Engineering of Microwaves, Millimeter and Submillimeter Waves (MSMW). IEEE, 2010. http://dx.doi.org/10.1109/msmw.2010.5546014.

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Cao, Binghua, Guangxin Zhang, and Zekui Zhou. "Far-Infrared Vibrational Spectra of L-Ascorbic Acid Investigated by Terahertz Time Domain Spectroscopy." In 2008 2nd International Conference on Bioinformatics and Biomedical Engineering (ICBBE '08). IEEE, 2008. http://dx.doi.org/10.1109/icbbe.2008.18.

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Reports on the topic "L-domain"

1

Chan, Tony F., and Diana C. Resasco. Analysis of Domain Decomposition Preconditioners on L-Shaped and C- Shaped Regions. Fort Belvoir, VA: Defense Technical Information Center, August 1988. http://dx.doi.org/10.21236/ada199806.

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Lesnaw, Judith A. Dissection of the Large Multifunctional L Protein of Vesicular Stomatitis Virus: Mapping Functional Domains. Fort Belvoir, VA: Defense Technical Information Center, April 2002. http://dx.doi.org/10.21236/ada413645.

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