Literatura académica sobre el tema "Homologie distante"

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Artículos de revistas sobre el tema "Homologie distante"

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Patthy, László. "Detecting distant homologies of mosaic proteins." Journal of Molecular Biology 202, no. 4 (1988): 689–96. http://dx.doi.org/10.1016/0022-2836(88)90550-5.

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Kwessi, Eddy. "Topological Comparison of Some Dimension Reduction Methods Using Persistent Homology on EEG Data." Axioms 12, no. 7 (2023): 699. http://dx.doi.org/10.3390/axioms12070699.

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In this paper, we explore how to use topological tools to compare dimension reduction methods. We first make a brief overview of some of the methods often used in dimension reduction such as isometric feature mapping, Laplacian Eigenmaps, fast independent component analysis, kernel ridge regression, and t-distributed stochastic neighbor embedding. We then give a brief overview of some of the topological notions used in topological data analysis, such as barcodes, persistent homology, and Wasserstein distance. Theoretically, when these methods are applied on a data set, they can be interpreted
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Cruz, Sergio Manuel Serra Da, Vanessa Batista, Edno Silva, et al. "Detecting distant homologies on protozoans metabolic pathways using scientific workflows." International Journal of Data Mining and Bioinformatics 4, no. 3 (2010): 256. http://dx.doi.org/10.1504/ijdmb.2010.033520.

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Gardiner, John, Robyn Overall, and Jan Marc. "Distant plant homologues: don’t throw out the baby." Trends in Plant Science 17, no. 3 (2012): 126–28. http://dx.doi.org/10.1016/j.tplants.2011.12.007.

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Spielberg, N., Z. Luz, R. Poupko, et al. "The Crystal and Mesophase Structure of Hexakis(alkylsulfono)- benzene Homologues by X-Ray Diffractometry." Zeitschrift für Naturforschung A 41, no. 6 (1986): 855–60. http://dx.doi.org/10.1515/zna-1986-0612.

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A powder X-ray diffractometer study of hexakis(tridecylsulfono)benzene (HASB13) has been carried out over the temperature range 20 to above 80 °C. In this range three phase transitions are observed by sharp discontinuities in the diffraction pattern indicating a solid-solid, solidmesophase, and mesophase-liquid transition. The mesomorphic phase is identified as a hexagonal columnar discotic mesophase, Dhd, with intercolumnar spacing of 25.7 Å and average stacking distance of 4.9 Å. Both distances are independent of temperature but there appears to be a gradual increase in the stacking disorder
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Shay, C. E., P. G. Foster, and J. M. Neelin. "Predictability of sequence homologies among lysine-rich histones by immunological distance." Comparative Biochemistry and Physiology Part B: Comparative Biochemistry 86, no. 1 (1987): 193–99. http://dx.doi.org/10.1016/0305-0491(87)90197-0.

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SNIPAS, Scott J., Henning R. STENNICKE, Stefan RIEDL, et al. "Inhibition of distant caspase homologues by natural caspase inhibitors." Biochemical Journal 357, no. 2 (2001): 575. http://dx.doi.org/10.1042/0264-6021:3570575.

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SNIPAS, Scott J., Henning R. STENNICKE, Stefan RIEDL, et al. "Inhibition of distant caspase homologues by natural caspase inhibitors." Biochemical Journal 357, no. 2 (2001): 575–80. http://dx.doi.org/10.1042/bj3570575.

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Caspases play an important role in the ability of animal cells to kill themselves by apoptosis. Caspase activity is regulated in vivo by members of three distinct protease inhibitor families, two of which, baculovirus p35 and members of the inhibitor of apoptosis (IAP) family, are thought to be caspase specific. However, caspases are members of the clan of cysteine proteases designated CD, which also includes animal and plant legumains, and the bacterial proteases clostripain, gingipain-R and gingipain-K. Since these proteases have been proposed to have a common mechanism and evolutionary orig
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Rigden, Daniel J., Jens M. H. Thomas, Felix Simkovic, et al. "Ensembles generated from crystal structures of single distant homologues solve challenging molecular-replacement cases inAMPLE." Acta Crystallographica Section D Structural Biology 74, no. 3 (2018): 183–93. http://dx.doi.org/10.1107/s2059798318002310.

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Molecular replacement (MR) is the predominant route to solution of the phase problem in macromolecular crystallography. Although routine in many cases, it becomes more effortful and often impossible when the available experimental structures typically used as search models are only distantly homologous to the target. Nevertheless, with current powerful MR software, relatively small core structures shared between the target and known structure, of 20–40% of the overall structure for example, can succeed as search models where they can be isolated. Manual sculpting of such small structural cores
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Dorer, Douglas R., and Steven Henikoff. "Transgene Repeat Arrays Interact With Distant Heterochromatin and Cause Silencing in cis and trans." Genetics 147, no. 3 (1997): 1181–90. http://dx.doi.org/10.1093/genetics/147.3.1181.

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Tandem repeats of Drosophila transgenes can cause heterochromatic variegation for transgene expression in a copy-number and orientation-dependent manner. Here, we demonstrate different ways in which these transgene repeat arrays interact with other sequences at a distance, displaying properties identical to those of a naturally occurring block of interstitial heterochromatin. Arrays consisting of tandemly repeated white transgenes are strongly affected by proximity to constitutive heterochromatin. Moving an array closer to heterochromatin enhanced variegation, and enhancement was reverted by r
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Tesis sobre el tema "Homologie distante"

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Sussfeld, Duncan. "Identifying remote homology and gene remodelling using network-based approaches." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASL112.

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L'augmentation toujours plus importante de données génomiques et métagénomiques appelle de nouveaux développements méthodologiques et bio-informatiques, afin de caractériser avec davantage de précision les phénomènes évolutifs dans leur ensemble. En particulier, certaines des méthodes usuelles pour étudier l'évolution des (familles de) gènes s'avèrent inadaptées lorsque la parenté entre séquences n'est que partiellement supportée. Ainsi, la définition et la reconstruction de familles de gènes se heurtent à l'obstacle de l'homologie distante, qui passe sous le seuil de détection des alignements
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Tinarrage, Raphaël. "Inférence topologique à partir de mesures et de fibrés vectoriels." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASM001.

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Nous contribuons à l'inférence topologique, basée sur la théorie de l'homologie persistante, en proposant trois familles de filtrations.Nous établissons pour chacune d'elles des résultats de consistance---c'est-à-dire de qualité d'approximation d'un objet géométrique sous-jacent---, et de stabilité---c'est-à-dire que robustesse face à des erreurs de mesures initiales.Nous proposons des algorithmes concrets afin de pouvoir utiliser ces méthodes en pratique.La première famille, les filtrations-DTM, est une alternative robuste à la classique filtration de Cech lorsque le nuage de points est bruit
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Lee, Marianne M. "A two-pronged approach to improve distant homology detection." Columbus, Ohio : Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1242235868.

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Hamdi, Chaima. "Applications de l’homologie persistante pour la reconnaissance des formes." Mémoire, Université de Sherbrooke, 2017. http://hdl.handle.net/11143/10675.

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L’homologie persistante est un outil fondamental dans la topologie computationnelle. Cette méthode est utilisée pour reconnaître et comparer les formes. Dans ce travail nous étudions d’abord l’homologie persistante dans le cas unidimensionnel d’ordre 0 qu’on appelle aussi fonction de taille. Nous présentons une démonstration du fait que toute fonction de taille peut être représentée comme un ensemble de points et de lignes dans le plan réel, avec des multiplicités. Cela permet une approche algébrique aux fonctions de taille et la construction de nouvelles pseudo distances entre les fonctions d
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Mauricio, Mauro. "Distance bounding and Heegaard Floer homology methods in reducible Dehn surgery." Thesis, Imperial College London, 2012. http://hdl.handle.net/10044/1/10226.

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Motivated by the formation of certain link types during Hin-mediated DNA recombination experiments, we consider tangle equations where one of the products is a connect-sum of 2-bridge links. We are thus led to study Dehn surgeries on knots in lens spaces that yield connect-sums of lens spaces. Using 3-manifold methods, we prove, for certain classes of knot exteriors, a distance bound on Dehn surgery slopes. (This proof complements an algebraic-geometric proof of a more general statement due to Boyer and Zhang [6]). Analysing the known examples of connect-sums of lens spaces surgeries, together
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Quercioli, Nicola. "A compactness theorem in group invariant persistent homology." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/13485/.

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In this thesis we present a new result concerning the theory of group invariant persistent homology. This theory adapts persistent homology in the presence of the action on a space of functions Phi of a subgroup G of the group H of all self-homeomorphisms of a topological space X. Its model is based on a space of suitable operators defined on Phi. After describing the mathematical setting and recalling some basic results, we prove that the space of these operators is compact with respect to a suitable topology. In order to prove this result, we require that Phi, G, X are compact.
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Elchesen, Alex. "Stability of Zigzag Persistence with Respect to a Reflection-type Distance." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492707343134983.

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Chowdhury, Samir. "Metric and Topological Approaches to Network Data Analysis." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555420352147114.

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Oruc-Ratinaud, Zéliha. "Interactions de longue distance et commutation de classe dans le locus des chaînes lourdes d’immunoglobulines." Limoges, 2006. https://aurore.unilim.fr/theses/nxfile/default/c5f89700-ef67-402e-ad1b-559e8e524b0c/blobholder:0/2006LIMO0066.pdf.

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La commutation isotypique au sein du locus des chaînes lourdes d'immunoglobulines (IgH) nécessite la transcription geffi1inale, l'intervention de AID (Activation-Induced cytidine Deaminase) et des éléments régulateurs en aval du locus (3 'RR). Pour analyser l'effet des interactions de longue distance sur la commutation isotypique, nous avons généré 3 modèles murins par recombinaison homologue. Dans le premier modèle, nous avons inséré un isolateur sauvage ou muté entre la 3'RR et le locus IgH. Dans le deuxième modèle, nous avons inséré un site de polyadénylation et de pause transcriptionnelle
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Buchet, Mickaël. "Topological inference from measures." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112367/document.

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La quantité de données disponibles n'a jamais été aussi grande. Se poser les bonnes questions, c'est-à-dire des questions qui soient à la fois pertinentes et dont la réponse est accessible est difficile. L'analyse topologique de données tente de contourner le problème en ne posant pas une question trop précise mais en recherchant une structure sous-jacente aux données. Une telle structure est intéressante en soi mais elle peut également guider le questionnement de l'analyste et le diriger vers des questions pertinentes. Un des outils les plus utilisés dans ce domaine est l'homologie persistant
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Libros sobre el tema "Homologie distante"

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Nieder, Andreas. Neuronal Correlates of Non-verbal Numerical Competence in Primates. Edited by Roi Cohen Kadosh and Ann Dowker. Oxford University Press, 2014. http://dx.doi.org/10.1093/oxfordhb/9780199642342.013.027.

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Non-verbal numerical competence, such as the estimation of set size, is rooted in biological primitives that can also be explored in animals. Over the past years, the anatomical substrates and neuronal mechanisms of numerical cognition in primates have been unravelled down to the level of single neurons. Studies with behaviourally-trained monkeys have identified a parietofrontal network of individual neurons selectively tuned to the number of items (cardinal aspect) or the rank of items in a sequence (ordinal aspect). The properties of these neurons’ numerosity tuning curves can explain fundam
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Capítulos de libros sobre el tema "Homologie distante"

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Gîrdea, Marta, Laurent Noé, and Gregory Kucherov. "Back-Translation for Discovering Distant Protein Homologies." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-04241-6_10.

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Cerri, Andrea, Marc Ethier, and Patrizio Frosini. "The Coherent Matching Distance in 2D Persistent Homology." In Computational Topology in Image Context. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-39441-1_20.

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Songdechakraiwut, Tananun, Bryan M. Krause, Matthew I. Banks, Kirill V. Nourski, and Barry D. Van Veen. "Wasserstein Distance-Preserving Vector Space of Persistent Homology." In Lecture Notes in Computer Science. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-43993-3_27.

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Lausen, Berthold. "Exploration Homologer Sequenzdaten: Positionelle Mutationsrate, Genetische Distanz und Phylogenie." In Biometrie und Informatik — neue Wege zur Erkenntnisgewinnung in der Medizin. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-48167-3_27.

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Casadio, Rita, Pier Luigi Martelli, Lisa Bartoli, and Piero Fariselli. "Topology prediction of membrane proteins: how distantly related homologs come into play." In Structural Bioinformatics of Membrane Proteins. Springer Vienna, 2010. http://dx.doi.org/10.1007/978-3-7091-0045-5_4.

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Kumar, Gayatri, Narayanaswamy Srinivasan, and Sankaran Sandhya. "Profiles of Natural and Designed Protein-Like Sequences Effectively Bridge Protein Sequence Gaps: Implications in Distant Homology Detection." In Methods in Molecular Biology. Springer US, 2022. http://dx.doi.org/10.1007/978-1-0716-2095-3_5.

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Lewis, Sally A., and Nicholas J. Cowan. "Tubulin-specific chaperones." In Guidebook to the Cytoskeletal and Motor Proteins. Oxford University PressOxford, 1999. http://dx.doi.org/10.1093/oso/9780198599579.003.0080.

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Abstract Tubulin-specific chaperone A has also been termed p14.11 Homologues of chaperones A (RBL2), 12 B (ALF1), 8 D (CIN1), 13 and E (PAC2)14 exist in S. cerevisiae. There is no discernable homologue of chaperone C in S. cerevisiae, although homologues of this chaperone exist in distantly related eukaryotes (e.g. Arabidopsis, C. elegans).
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CHANDLER, V., M. STAM, and L. SIDORENKO. "7 Long-distance Cis and Trans interactions mediate paramutation." In Homology Effects. Elsevier, 2002. http://dx.doi.org/10.1016/s0065-2660(02)46008-7.

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Rajeswari, V., and Dr T. Nithiya. "NONLINEAR QUANTUM ALGEBRAIC TOPOLOGICAL MODEL FOR COMPUTING MINIMUM TRANSITION HOMOLOGIES USING JOINT CLUSTER PAINLEVE NETWORK THEORY." In Futuristic Trends in Contemporary Mathematics & Applications Volume 3 Book 1. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bjcm1p1ch9.

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Developing immense in network communication, complex topology is one of main structural problem in Transition homologies. Due to this nonlinear structure creates a redundant network life time foe energy loses due to distance theory of connective nodes in network leads data transmission failures. Existing analytics model estimates the linear substance based distance theory to process the Data Transition Homologies (DTH) indeed of nonlinear structure because of dynamic topology in homotphy to improve the network communication. To resolve this problem, we propose a Nonlinear Quantum Algebraic Top
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Liu, Yayun, Zhijian Zhang, Lin Jiang, Hui Zhong, and Xinyang Li. "Identifying Key Nodes Based on TS Distance in Time-Varying Social Networks." In Fuzzy Systems and Data Mining IX. IOS Press, 2023. http://dx.doi.org/10.3233/faia231025.

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Key nodes are important for analyzing the evolution of time-varying networks. Persistent homology can calculate topological information of the network in different dimensions and encode it into a persistence diagram. This paper first defines the Topological Similarity (TS) distance based on the theory of persistent homology to describe the topological similarity of the networks. The smaller the TS distance, the more similar the network is. Secondly, an algorithm for identifying key nodes based on TS distance (KITS) is proposed to obtain the sequence of key nodes in time-varying network. Finall
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Actas de conferencias sobre el tema "Homologie distante"

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Vieira, Diogo Munaro, Elvismary Molina de Armas, Maria L. G. Jaramillo, et al. "A New Data Modeling Approach for Alignment-free Biological Applications." In Simpósio Brasileiro de Banco de Dados. Sociedade Brasileira de Computação - SBC, 2023. http://dx.doi.org/10.5753/sbbd.2023.232471.

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Finding homologous proteins and grouping them are tasks of utmost importance in biology, which currently rely on tools based on information from these proteins' DNA or amino acid sequences. These tasks require identifying evolutionary patterns that are challenging to obtain automatically using traditional methods. This work proposes a data modeling approach to leverage evolutionary patterns in homology searching, ranking, and clustering tasks through an alignment-free process using image similarity algorithms. This strategy is valuable even for distant homologs and contributes to data privacy
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Aljawad, Osama, Yanni Sun, Alex Liu, and Jikai Lei. "NcRNA homology search using Hamming distance seeds." In the 2nd ACM Conference. ACM Press, 2011. http://dx.doi.org/10.1145/2147805.2147828.

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Ahmed, Mahmuda, Brittany Terese Fasy, and Carola Wenk. "Local persistent homology based distance between maps." In SIGSPATIAL '14: 22nd SIGSPATIAL International Conference on Advances in Geographic Information Systems. ACM, 2014. http://dx.doi.org/10.1145/2666310.2666390.

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Huang, Weiyu, and Alejandro Ribeiro. "Persistent homology approximations of network distances." In 2015 IEEE Global Conference on Signal and Information Processing (GlobalSIP). IEEE, 2015. http://dx.doi.org/10.1109/globalsip.2015.7418348.

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Huang, Weiyu, and Alejandro Ribeiro. "Persistent homology lower bounds on network distances." In 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2016. http://dx.doi.org/10.1109/icassp.2016.7472598.

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Sheehy, Donald R. "The Persistent Homology of Distance Functions under Random Projection." In Annual Symposium. ACM Press, 2014. http://dx.doi.org/10.1145/2582112.2582126.

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Huang, Weiyu, and Alejandro Ribeiro. "Persistent homology lower bounds on distances in the space of networks." In 2016 50th Asilomar Conference on Signals, Systems and Computers. IEEE, 2016. http://dx.doi.org/10.1109/acssc.2016.7868996.

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Jia, Yan, Runheng Li, Liang Gan, and Guangqiang Chen. "IRC Botnets' Homology Identifying Method Based on Improved LB_PAA Distance of Communication Characteristic Curves." In 2010 Third International Symposium on Intelligent Information Technology and Security Informatics (IITSI). IEEE, 2010. http://dx.doi.org/10.1109/iitsi.2010.69.

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Prokhorova, E. E., and R. R. Usmanova. "GENETIC POLYMORPHISM OF SNAILS SUCCINEA PUTRIS (GASTROPODA, PULMONATA)." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-33.

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Genotypic diversity of snails Succinea putris L. (Linnaeus, 1758) collected in the north-west of Russia and in the Republic of Belarus was analysed. Homology between the nucleotide sequences of snails from different population made up 100% by the nucleotide sequence of ITS1-5.8S-ITS2 region of rDNA. Genetic variability based on mitochondrial markers was insignificant. Average genetic distances between samples made up 0,009 for СOI gene loci and 0.008 for CytB gene loci. Was found ten haplotypes of the mitochondrial gene CytB and nine haplotypes of the mitochondrial gene СOI. Perhaps the geneti
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Shigeta, Yuji, Masatoshi Aramaki, Kentaro Kudo, et al. "Understanding The Effect Of Process Parameters On Three-dimensional Pore Configurations And Mechanical Properties Of Laser Additive Manufactured Ti Using Synchrotron X-ray Computed Tomography And Homology." In World Powder Metallurgy 2022 Congress & Exhibition. EPMA, 2022. http://dx.doi.org/10.59499/wp225369761.

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To establish a quantitative relationship between fabrication parameters, pore-configuration, and mechanical properties in porous materials, the pore configurations were visualized by X-ray computed tomography (CT) about pure Ti-AM specimens fabricated under different laser beam conditions. Radius and sphericity of all pores were obtained by image analysis. Furthermore, using the 0th persistent homology, the pore configurations were qualified by the pair of birth and death values, b and d for all pores: |b| means a pore radius and d correspond to a half distance between adjacent pores. The sign
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Informes sobre el tema "Homologie distante"

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Terwilliger, Thomas C. Molecular replacement and model-building using distant homology models as templates. Office of Scientific and Technical Information (OSTI), 2013. http://dx.doi.org/10.2172/1107986.

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Dolja, Valerian V., Amit Gal-On, and Victor Gaba. Suppression of Potyvirus Infection by a Closterovirus Protein. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7580682.bard.

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The plant virus family Polyviridae is the largest and most destructive of all plant viruses. Despite the continuous effort to develop resistant plant varieties, there is a desperate need for novel approaches conferring wide-range potyvirus resistance. Based on experiments with the tobacco etch potyvirus (TEV)-derived gene expression vector, we suggested approach for screening of the candidate resistance genes. This approach relies on insertion of the genes into a virus vector and evaluation of the phenotypes of the resulting recombinant viruses. The genes which suppress infection by the recomb
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