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Auswahl der wissenschaftlichen Literatur zum Thema „Wall label“
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Zeitschriftenartikel zum Thema "Wall label"
1
Sonnenfeld, E. M., T. J. Beveridge und R. J. Doyle. „Discontinuity of charge on cell wall poles of Bacillus subtilis“. Canadian Journal of Microbiology 31, Nr. 9 (01.09.1985): 875–77. http://dx.doi.org/10.1139/m85-163.
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When cell wall poles of Bacillus subtilis were treated with dilute cationized ferritin, label was found only at discrete patches. Since cationized ferritin binds to negatively charged groups, the pole regions that retain label most likely represent localized surface sites of high electronegativity, indicating that the cell wall of B. subtilis is, at least, partially differentiated.
2
Di Tommaso, Stefania, Sherrie Wang und David B. Lobell. „Combining GEDI and Sentinel-2 for wall-to-wall mapping of tall and short crops“. Environmental Research Letters 16, Nr. 12 (18.11.2021): 125002. http://dx.doi.org/10.1088/1748-9326/ac358c.
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Abstract High resolution crop type maps are an important tool for improving food security, and remote sensing is increasingly used to create such maps in regions that possess ground truth labels for model training. However, these labels are absent in many regions, and models trained on optical satellite features often exhibit low performance when transferred across geographies. Here we explore the use of NASA’s global ecosystem dynamics investigation (GEDI) spaceborne lidar instrument, combined with Sentinel-2 optical data, for crop type mapping. Using data from three major cropped regions (in China, France, and the United States) we first demonstrate that GEDI energy profiles can reliably distinguish maize, a crop typically above 2 m in height, from crops like rice and soybean that are shorter. We further show that these GEDI profiles provide much more invariant features across geographies compared to spectral and phenological features detected by passive optical sensors. GEDI is able to distinguish maize from other crops within each region with accuracies higher than 84%, and able to transfer across regions with accuracies higher than 82%, compared to 64% for transfer of optical features. Finally, we show that GEDI profiles can be used to generate training labels for models based on optical imagery from Sentinel-2, thereby enabling the creation of 10 m wall-to-wall maps of tall versus short crops in label-scarce regions. As maize is the second most widely-grown crop in the world and often the only tall crop grown within a landscape, we conclude that GEDI offers great promise for improving global crop type maps.
3
Rogers, Gregory S., und John J. Frett. „ORGANELLE-SPECIFIC LOCALIZATION OF IPTASE IN TRANSGENIC NICOTIANA“. HortScience 31, Nr. 6 (Oktober 1996): 912C—912. http://dx.doi.org/10.21273/hortsci.31.6.912c.
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Nicotiana transformed with the isopentenyl transferase (ipt) gene from Agrobacterium tumefaciens was fixed for 1 h in 1% glutaraldehyde and 4% formaldehyde. Ultrathin sections were collected on nickel grids. Grids were treated with polyclonal anti-IPTase antibody raised in rabbits and visualized with 10 nm, protein-A–labeled colloidal gold. Gold label was found throughout the cell, including the cell wall, vacuole, rough ER, and organelles. Cell wall and vacuole labeling appears to be due to non-specific binding and is greatly reduced by a BSA block. Mitochondria and chloroplasts also showed gold label, but not greater than established background levels. Labeling above background levels on the rough ER, free polysomes, and further label in the free cytoplasm indicate a cytoplasmic role for IPTase.
4
Messner, Robert, und Christian P. Kubicek. „Synthesis of cell wall glucan, chitin, and protein by regenerating protoplasts and mycelia of Trichoderma reesei“. Canadian Journal of Microbiology 36, Nr. 3 (01.03.1990): 211–17. http://dx.doi.org/10.1139/m90-036.
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The synthesis of constituent polymers of the cell wall by either growing mycelia or regenerating protoplasts of Trichoderma reesei QM 9414 was investigated by following the incorporation of radioactive precursors of the individual polymers (i.e., N[14C] acetyl-glucosamine, [3H] and [14C]glucose, [14C]mannose, and [35S]methionine) into individual fractions. N-Acetyl-glucosamine and glucose were found to become specifically incorporated into cell wall chitin and glucan by both mycelia and regenerating protoplasts, indicating the activity of chitin and glucan synthases in both systems. Cell wall glucan from regenerating protoplasts, however, consisted only of α-glucan and specifically lacked β-glucan which is found in mycelial cell walls. Mannose became metabolized to glucose before its label appeared in the cell wall, and was thus unsuitable for specific labelling. [35S]Methionine was found in a small (< 21 kDa) polypeptide from the first alkali-soluble cell wall fraction, but also in cell wall bound secretory proteins, i. e., β-glucosidase. These results indicate that cell wall biogenesis in T. reesei, in contrast to a report by other authors, is similar to that of other filamentous fungi. Key words: Trichoderma reesei, protoplast regeneration, cell wall polymer, β-glucan, cell wall protein.
5
Di Guilmi, A. M., J. Bonnet, S. Peiβert, C. Durmort, B. Gallet, T. Vernet, N. Gisch und Y. S. Wong. „Specific and spatial labeling of choline-containing teichoic acids in Streptococcus pneumoniae by click chemistry“. Chemical Communications 53, Nr. 76 (2017): 10572–75. http://dx.doi.org/10.1039/c7cc05646j.
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6
Koh, Jia Xin, Keyu Geng und Donglin Jiang. „Smart covalent organic frameworks: dual channel sensors for acids and bases“. Chemical Communications 57, Nr. 74 (2021): 9418–21. http://dx.doi.org/10.1039/d1cc03057d.
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7
Beise, Frank, Harald Labischinski und Hans Bradaczek. „On the Relationships between Molecular Conformation, Affinity towards Penicillin-Binding Proteins, and Biological Activity of Penicillin G-Sulfoxide“. Zeitschrift für Naturforschung C 43, Nr. 9-10 (01.10.1988): 656–64. http://dx.doi.org/10.1515/znc-1988-9-1006.
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Abstract The binding capacity of penicillin G-sulfoxide towards the penicillin-binding proteins (PBP) of Staphylococcus aureus H was studied. The sulfoxide and its parent compound, penicillin G , differ only in two aspects, the sulfur-bound oxygen and an altered conformation of the five-membered thiazolidine-ring system. These minor alterations of the penicillin structure resulted in a drastical decrease of binding activity (about two orders of magnitude) of the sulfoxide derivative towards its target enzymes. Furthermore, the sulfoxide did not exhibit the selectivity of subinhibitory doses for PBP 3, as could be observed for penicillin G . The biological consequences of this behaviour were monitored via growth curves, uptake of cell wall label, and analysis of the cell wall. Binding studies revealed that comparable growth inhibition and impairment of cell wall label uptake were achieved by at least a 100-fold higher penicillin G-sulfoxide concentration, compared to its parent compound. In cell wall analysis, the application of high doses of the antibiotics, i.e. nearly saturated PBP , verified the above mentioned observation. Surprisingly, small but significant differences in cell wall composition occurred using subinhibitory doses, probably due to the altered affinity towards PBP 3, supporting the hypothesis of an important role of this PBP in peptidoglycan transpeptidation.
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Mackey, Brandon, und Vernon T. Mackey. „Successful Deoxycholate Acid Use in a Male Patient for Resistant Lower Abdominal Wall Fat“. SKIN The Journal of Cutaneous Medicine 4, Nr. 4 (12.07.2020): 349–52. http://dx.doi.org/10.25251/skin.4.4.12.
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In this patient off-label Kybella was effective in improving the contour and removing excess lower abdominal fat after two treatments. While off-label use of Kybella is commonly used every day by physicians across the United States (8, 10), it is not well represented in the literature (9). This case is presented to aid in the discussion of new, safe, noninvasive treatment techniques in which healthcare demand and delivery has outpaced publication and literature support.
9
Gu, Hongjun, He Gong, Chunxue Wang, Xiaoqiang Sun, Xibin Wang, Yunji Yi, Changming Chen, Fei Wang und Daming Zhang. „Compact Inner-Wall Grating Slot Microring Resonator for Label-Free Sensing“. Sensors 19, Nr. 22 (19.11.2019): 5038. http://dx.doi.org/10.3390/s19225038.
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In this paper, we present and analyze a compact inner-wall grating slot microring resonator (IG-SMRR) with the footprint of less than 13 μm × 13 μm on the silicon-on-insulator (SOI) platform for label-free sensing, which comprises a slot microring resonator (SMRR) and inner-wall grating (IG). Its detection range is significantly enhanced without the limitation of the free spectral region (FSR) owing to the combination of SMRR and IG. The IG-SMRR has an ultra-large quasi-FSR of 84.5 nm as the detection range, and enlarged factor is up to over 3 compared with the conventional SMRR. The concentration sensitivities of sodium chloride solutions and D-glucose solutions are 996.91 pm/% and 968.05 pm/%, respectively, and the corresponding refractive index (RI) sensitivities are 559.5 nm/RIU (refractive index unit) and 558.3 nm/RIU, respectively. The investigation on the combination of SMRR and IG is a valuable exploration of label-free sensing application for ultra-large detection range and ultra-high sensitivity in future.
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Zhang, Yaowen, Linsheng Huo und Hongnan Li. „Automated Recognition of a Wall between Windows from a Single Image“. Journal of Sensors 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/7051931.
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To avoid the time-consuming, costly, and expert-dependent traditional assessment of earthquake damaged structures, image-based automatic methods have been developed recently. Since automated recognition of structure elements is the basis by which these methods achieve automatic detection, this study proposes a method to recognize the wall between windows from a single image automatically. It begins from detection of line segments with further selection and linking to obtain longer line segments. The color features of the two sides of each long line segment are employed to pick out line segments as candidate window edges and then label them. Finally, the images are segmented into several subimages, window regions are located, and then the wall between the windows is located. Real images are tested to verify the method. The results indicate that walls between windows can be successfully recognized.
Dissertationen zum Thema "Wall label"
1
Choudhry, Anthony Ejaz. „Inhibition of bacterial cell wall biosynthesis by the affinity label N-bromoacetylglucosamine“. Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ40403.pdf.
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2
Mujahid, Hana, Ken Pendarvis, Joseph Reddy, Babi Nallamilli, K. Reddy, Bindu Nanduri und Zhaohua Peng. „Comparative Proteomic Analysis of Cotton Fiber Development and Protein Extraction Method Comparison in Late Stage Fibers“. MDPI AG, 2016. http://hdl.handle.net/10150/618719.
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The distinct stages of cotton fiber development and maturation serve as a single-celled model for studying the molecular mechanisms of plant cell elongation, cell wall development and cellulose biosynthesis. However, this model system of plant cell development is compromised for proteomic studies due to a lack of an efficient protein extraction method during the later stages of fiber development, because of a recalcitrant cell wall and the presence of abundant phenolic compounds. Here, we compared the quality and quantities of proteins extracted from 25 dpa (days post anthesis) fiber with multiple protein extraction methods and present a comprehensive quantitative proteomic study of fiber development from 10 dpa to 25 dpa. Comparative analysis using a label-free quantification method revealed 287 differentially-expressed proteins in the 10 dpa to 25 dpa fiber developmental period. Proteins involved in cell wall metabolism and regulation, cytoskeleton development and carbohydrate metabolism among other functional categories in four fiber developmental stages were identified. Our studies provide protocols for protein extraction from maturing fiber tissues for mass spectrometry analysis and expand knowledge of the proteomic profile of cotton fiber development.
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Faon, Raphaël. „Figure, Discours“. Electronic Thesis or Diss., CY Cergy Paris Université, 2024. http://www.theses.fr/2024CYUN1309.
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Cette thèse d'artiste a pour sujet les processus de signification et d'interprétation des propositions artistiques fondées sur la transfiguration d'images ou d'objets préexistants dans un contexte artistique ; articulant la pratique de l'art à celle de la pensée, elle se compose d'expérimentations artistiques présentées sous la forme d'un portfolio et d'un essai théorique sur la place du discours face aux œuvres visuelles en situation d'exposition, et plus spécifiquement en ce qui concerne l'usage institutionnel du cartel au musée. Ces deux parties sont complémentaires et là où la pratique porte sur des gestes artistiques de transfiguration des images, la partie théorique en interroge les processus de (re)signification par le discours. L'enjeu est de faire entrer en résonnance ces deux dimensions de la recherche en art pour interroger les conditions (con)textuelles de la réception artistique. Inspiré par l'art conceptuel, le poststructuralisme et la philosophie de l'art américaine, ce travail accorde une attention particulière à la variabilité du sens, son caractère spectral et mouvant, plus affaire d'usage que d'essence, et à la construction de la signification des œuvres visuelles selon des déterminations externes au-delà ou en-deçà de leurs propriétés formelles ou internes, dans le sillage d'une conception postmoderne de l'art et de la critique institutionnelle. Cela est rendu manifeste dans les gestes de transfiguration influencés par le ready-made et l'appropriation photographique, qui sont étudiés et mis en pratique dans la thèseThis artist's thesis explores the processes of meaning-making and interpretation in artistic propositions that center on the transfiguration of pre-existing images or objects within an artistic context. Bridging art practice with critical theory, it comprises both artistic experiments presented as a portfolio and an essay that examines the role of discourse in relation to visual works within an institutional setting like galleries and museums, particularly regarding the use of exhibition labels (cartel). These two components are complementary: the practical part focuses on artistic gestures that transfigure images, while the theoretical section questions the processes of (re)signification through discourse. The aim is to bring these two dimensions of artistic research into resonance, thereby interrogating the (con)textual conditions of art reception. Inspired by conceptual art, poststructuralism, and American art philosophy, this work pays close attention to the variability of meaning—its spectral and fluid nature—being more a matter of use than essence. The study emphasizes the construction of meaning in visual works based on external determinants beyond or beneath their formal or internal properties, which aligns with a postmodern conception of art and institutional critique. This is evident in gestures of transfiguration influenced by the ready-made and photographic appropriation, studied and practiced throughout the thesis
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Fonseca, Juliana Guimarães. „Caracterização do proteoma da parede celular de folhas e entrenós jovens e maduros de cana-de-açúcar“. Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/11/11137/tde-23042015-162148/.
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Este estudo trata das proteínas relacionadas ao desenvolvimento e à formação da parede celular vegetal de cana-de-açúcar, com o objetivo de auxiliar no desenvolvimento de novas tecnologias para a produção de etanol celulósico a partir do bagaço de cana. Com isso, as proteínas de parede celular de entrenós e folhas de plantas com 4 meses de idade em dois estádios de desenvolvimento, juvenil e maduro, foram identificadas. Para extração foi utilizado o método não destrutivo por infiltração a vácuo utilizando dois sais, 0,2 M de CaCl2 e 2 M de LiCl seguido de centrifugação. As amostras complexas foram digeridas, fracionadas, sequenciadas por LC-MSE . Os peptídeos foram processados utilizando o ProteinLynx 2.5 e comparados com a base de dados de ESTs traduzidos de cana e sorgo. A anotação das proteínas foi realizada com base no programa PFAM e dividas em classes funcionais. Apenas as proteínas que apareceram em pelo menos duas das três repetições biológicas foram utilizadas na análise principal. Para prever a localização subcelular das proteínas selecionadas utilizaram-se os softwares: SignalP, TargetP, Predotar e TMHMM. Apenas aquelas proteínas que foram preditas para serem secretadas por dois ou mais programas foram consideradas como proteínas de parede celular (PPC). Ao todo, 543 proteínas foram consideradas como PPC: 205 em entrenós jovens, 143 em entrenós maduros, 124 em folhas jovens e 71 em folhas maduras. Dentre essas proteínas, 365 foram consideradas diferentes, e caracterizadas em dez classes funcionais. A análise estatística compreendeu a análise de PCA e PLS-DA, havendo diferença estatística entre os tratamentos analisados. Neste trabalho, foram encontradas 66 glicosil-hidrolases e 39 peroxidases, sendo 14 e 11 exclusivas de tecidos juvenis, respectivamente. Essas proteínas são conhecidas por terem funções relacionadas à quebra e ao remodelamento dos polissacarídeos da parede celular vegetal, e, portanto, foram indicadas neste estudo como alvo de pesquisas futuras que utilizem as próprias enzimas da planta para otimização da produção do etanol celulósico.Individualmente, este estudo foi o que mais identificou PPCs dentre a literatura existente, além de ter sido pioneiro na utilização da análise quantitativa para PPC.This study provides information about the proteins of the cell wall of sugarcane at diferente stages of development and formation. The aim of this study is to assist in the development of new technologies for the production of cellulosic ethanol from sugarcane bagasse. Cell wall proteins from 4-month-old internodes and leaves of sugarcane in two developmental stages, juvenile and mature, have been identified. Protein extraction was performed with a non-destructive method by using vacuum infiltration with two salts, 0.2 M CaCl2 and 2 M LiCl, followed by centrifugation. Complex samples were digested, fractionated and sequenced by LC-MSE. Peptides were processed by ProteinLynx 2.5 and compared to the translated sugarcane and sorghum ESTs database. The annotation of the proteins was performed using PFAM and the functional classification was according the one used in other related studies. Only the proteins that appeared in at least two of the three biological replicates were used in the main analysis. In order to predict the subcellular localization of these proteins, SignalP, TargetP, TMHMM and Predotar softwares were used. Only those proteins that were predicted to be secreted by two or more programs were considered as cell wall proteins (PPS). Altogether, 543 proteins were classified as PPC: 205 inimmature internodes, 143 in mature internodes, 124 in young leaves and 71 in matured leaves. Among these proteins, 365 were considered different, and divided into ten functional classes. Statistical analysis was made with PCA and PLSDA, confirming that there were statistical differences among the treatments. In this work, 66 glycoside hydrolases and 39 peroxidases c identified, being 14 and 11 unique to young tissues, respectively. These proteins have their function related to plant cell wall polysaccharides breakdown and remodeling, and, therewith, the glycoside hydrolases and peroxidases found in this study were indicated to be the target of future research using the plant\'s own enzymes to optimize the cellulosic ethanol production. Individually, this study was the one that most identified PPC among the existing literature, and is a pioneer in the use of quantitative analysis for PPCs.
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Bukva, Emir. „From the Wall to the Web: A Microformat for Visual Art“. [Kent, Ohio] : Kent State University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=kent1259115325.
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Thesis (M.F.A.)--Kent State University, 2009.Title from PDF t.p. (viewed April 22, 2010). Advisor: Sanda Katila. Keywords: microformats; semantic web; labels. Includes bibliographical references (p. 52-53).
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Wallin, Julia, und Anna Lindborg. „The competition within the walls : a qualitative study about how customers reason regarding their brand choice“. Thesis, Högskolan Kristianstad, Fakulteten för ekonomi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-20887.
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As private labels have developed and increased in recent years, customers’ options have grown. The purpose of this qualitative study is to explore how customers reason when they choose a brand in a Swedish sportswear store, which offers both private labels and national brands. More specifically, the following attributes, private labels versus national brands, customer behavior, and store layout are considered in order to address a possible complexity in the brand choice. The empirical material was collected through twelve exit interviews outside Stadium stores in four cities, combined with four observations in four Stadium stores. The findings revealed that private labels and national brands seem to have similar product characteristics, which may cause complexity in customers’ brand choices. This thesis contributes with an insight into a new dynamic within the walls of a sportswear store and discusses what aspects influence customers’ brand choice.
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Paiva, Ana Luiza Sobral. „Biochemical responses of bean-to-string [Vigna unguiculata L. (Walp.)] to salt stress and infection by severe mosaic of cowpea (CPSMV) revealed by quantitative proteomics dial free“. Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=13591.
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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgicoAs sessile organisms, plants are exposed to a plethora of environmental stresses to which they must respond to maintain efficient growth and survival. Therefore, in order to improve our understanding on the complex mechanisms involved in the cowpea response to salt stress and to a compatible interaction with the cowpea severe mosaic virus (CPSMV), we used a label-free quantitative proteomic approach to identify the salt and virus responsive proteins in the leaves of the Pitiuba (CE-31) cultivar. The proteins extracted from the leaves (control and treated) 2 and 6 days post-treatment only with salt (DPS), only infected with CPSMV (DPV) or both of them (DPSV) were analyzed using mass spectrometry. At 2 DPS, 350 proteins with at least two-fold differences in abundance, in comparison with controls, were differentially accumulated in the leaves of the salt-treated (80% up and 20% down-accumulated), 281 at 2DPV (25% up and 75% down-accumulated) and 321 at 2 DPSV (45% up and 55% down-accumulated) plants. At 6 DPS, 350 proteins were differentially accumulated in the leaves of the salt-treated (90% up and 10% down-accumulated), 225 at 6 DPV (80% up and 20% down-accumulated) and 315 at 6 DPSV (94% up and 6% down-accumulated) plants. The qualitative analysis showed biochemical differences when the cowpea plants were challenged concurrently with both stresses. To cope with salinity, cowpea increased the abundance of proteins directly involved with the salt tolerance mechanisms. The results indicated that the CPSMV induce the down-accumulating of several proteins to invade and spread in host at early infection period (2 DPV), but at 6 DPV plant can induce accumulation of diverse proteins related with defense, although these strategies canât avoid the negatives effects of disease. When exposed simultaneously to salt/CPSMV stresses, a balance in protein accumulation involved in many biological process. This is the first work employing this approach in cowpea and providing evidences of the plant biochemical mechanisms involved in the responses of cowpea to these stresses.
Como organismos sÃsseis, as plantas sÃo expostas a uma variedade de estresses ambientais aos quais devem responder para sobreviverem e se desenvolverem. A fim de melhorar a nossa compreensÃo sobre os mecanismos complexos envolvidos na resposta do feijÃo-de-corda ao estresse salino e na interaÃÃo compatÃvel com o vÃrus do mosaico severo do caupi (CPSMV), foi utilizada uma abordagem proteÃmica quantitativa, livre de marcaÃÃo, para identificar proteÃnas, responsivas a essess estresses em folhas de feijÃo-de-corda, cv. CE-31. As proteÃnas extraÃdas a partir de folhas primÃrias, 2 e 6 dias apÃs o tratamento sà com o sal (DPS), somente infectadas (DPV), ou sob aÃÃo combinada dos dois (DPSV) foram analisadas, usando espectrometria de massas e comparadas com grupo controle. No 2 DPS, foram identificadas 350 proteÃnas diferencialmente acumuladas (80% aumentaram em abundÃncia e 20% diminuÃram), no 2 DPV 281 (25% aumentaram em abundÃncia e 75% diminuÃram) e no 2 DPSV 321 (45% aumentaram em abundÃncia e 55% diminuÃram). Jà no 6 DPS, foram identificadas 350 proteÃnas diferencialmente acumuladas (90% mostraram aumento em abundÃncia e 10% diminuiÃÃo), no 6 DPV 225 (80% aumentaram em abundÃncia e 20% diminuÃram) e no 6 DPSV 315 proteÃnas(94% aumentaram em abundÃncia e 6% diminuÃram). Para lidar com a salinidade, o cv. CE-31 aumentou a abundÃncia de proteÃnas envolvidas diretamente com os mecanismos de tolerÃncia ao sal. Em relaÃÃo à infecÃÃo da planta pelo CPSMV, os resultados obtidos indicaram que o vÃrus induz reduÃÃo na abundÃncia de vÃrias proteÃnas nos tempos iniciais de infecÃÃo, provavelmente favorecendo a invasÃo e propagaÃÃo na planta, mas, no 6 DPSV, a planta recupera sua capacidade de acionar mecanismos de defesa, embora esses jà nÃo sejam mais efetivos para evitar o estabelecimento da doenÃa viral. Durante exposiÃÃo simultÃnea da planta ao sal e ao vÃrus, ocorreu um equilÃbrio entre o aumento e diminuiÃÃo em abundÃncia de proteÃnas envolvidas em diversos processos metabÃlicos. Esse trabalho à pioneiro nessa abordagem em feijÃo-de-corda e fornece evidÃncias dos mecanismos bioquÃmicos envolvidos nas resposta da planta a esses estresses.
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Paiva, Ana Luiza Sobral. „Respostas bioquímicas do feijão-de-corda [Vigna unguiculata L. (Walp.)] ao estresse salino e infecção pelo vírus do mosaico severo do caupi (CPSMV) reveladas pela proteômica quantitativa livre de marcação“. reponame:Repositório Institucional da UFC, 2015. http://www.repositorio.ufc.br/handle/riufc/18855.
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PAIVA, Ana Luiza Sobral. Respostas bioquímicas do feijão-de-corda [Vigna unguiculata L. (Walp.)] ao estresse salino e infecção pelo vírus do mosaico severo do caupi (CPSMV) reveladas pela proteômica quantitativa livre de marcação. 2015. 200 f. Dissertação (Mestrado em Bioquímica) - Universidade Federal do Ceará, Fortaleza-CE, 2015.Submitted by Eric Santiago (erichhcl@gmail.com) on 2016-07-08T12:56:09Z No. of bitstreams: 1 2015_dis_alspaiva.pdf: 4225070 bytes, checksum: 0559261a4c594b2649cdb60e4563c1fc (MD5)
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As sessile organisms, plants are exposed to a plethora of environmental stresses to which they must respond to maintain efficient growth and survival. Therefore, in order to improve our understanding on the complex mechanisms involved in the cowpea response to salt stress and to a compatible interaction with the cowpea severe mosaic virus (CPSMV), we used a label-free quantitative proteomic approach to identify the salt and virus responsive proteins in the leaves of the Pitiuba (CE-31) cultivar. The proteins extracted from the leaves (control and treated) 2 and 6 days post-treatment only with salt (DPS), only infected with CPSMV (DPV) or both of them (DPSV) were analyzed using mass spectrometry. At 2 DPS, 350 proteins with at least two-fold differences in abundance, in comparison with controls, were differentially accumulated in the leaves of the salt-treated (80% up and 20% down-accumulated), 281 at 2DPV (25% up and 75% down-accumulated) and 321 at 2 DPSV (45% up and 55% down-accumulated) plants. At 6 DPS, 350 proteins were differentially accumulated in the leaves of the salt-treated (90% up and 10% down-accumulated), 225 at 6 DPV (80% up and 20% down-accumulated) and 315 at 6 DPSV (94% up and 6% down-accumulated) plants. The qualitative analysis showed biochemical differences when the cowpea plants were challenged concurrently with both stresses. To cope with salinity, cowpea increased the abundance of proteins directly involved with the salt tolerance mechanisms. The results indicated that the CPSMV induce the down-accumulating of several proteins to invade and spread in host at early infection period (2 DPV), but at 6 DPV plant can induce accumulation of diverse proteins related with defense, although these strategies can’t avoid the negatives effects of disease. When exposed simultaneously to salt/CPSMV stresses, a balance in protein accumulation involved in many biological process. This is the first work employing this approach in cowpea and providing evidences of the plant biochemical mechanisms involved in the responses of cowpea to these stresses.
Como organismos sésseis, as plantas são expostas a uma variedade de estresses ambientais aos quais devem responder para sobreviverem e se desenvolverem. A fim de melhorar a nossa compreensão sobre os mecanismos complexos envolvidos na resposta do feijão-de-corda ao estresse salino e na interação compatível com o vírus do mosaico severo do caupi (CPSMV), foi utilizada uma abordagem proteômica quantitativa, livre de marcação, para identificar proteínas, responsivas a essess estresses em folhas de feijão-de-corda, cv. CE-31. As proteínas extraídas a partir de folhas primárias, 2 e 6 dias após o tratamento só com o sal (DPS), somente infectadas (DPV), ou sob ação combinada dos dois (DPSV) foram analisadas, usando espectrometria de massas e comparadas com grupo controle. No 2° DPS, foram identificadas 350 proteínas diferencialmente acumuladas (80% aumentaram em abundância e 20% diminuíram), no 2° DPV 281 (25% aumentaram em abundância e 75% diminuíram) e no 2° DPSV 321 (45% aumentaram em abundância e 55% diminuíram). Já no 6° DPS, foram identificadas 350 proteínas diferencialmente acumuladas (90% mostraram aumento em abundância e 10% diminuição), no 6° DPV 225 (80% aumentaram em abundância e 20% diminuíram) e no 6° DPSV 315 proteínas(94% aumentaram em abundância e 6% diminuíram). Para lidar com a salinidade, o cv. CE-31 aumentou a abundância de proteínas envolvidas diretamente com os mecanismos de tolerância ao sal. Em relação à infecção da planta pelo CPSMV, os resultados obtidos indicaram que o vírus induz redução na abundância de várias proteínas nos tempos iniciais de infecção, provavelmente favorecendo a invasão e propagação na planta, mas, no 6° DPSV, a planta recupera sua capacidade de acionar mecanismos de defesa, embora esses já não sejam mais efetivos para evitar o estabelecimento da doença viral. Durante exposição simultânea da planta ao sal e ao vírus, ocorreu um equilíbrio entre o aumento e diminuição em abundância de proteínas envolvidas em diversos processos metabólicos. Esse trabalho é pioneiro nessa abordagem em feijão-de-corda e fornece evidências dos mecanismos bioquímicos envolvidos nas resposta da planta a esses estresses.
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TANG, CHI-FONG, und 鄧志峰. „On Macao's Indie: The Case of Music Labels 4daz-le, Day's Eye Records and Warm Wall“. Thesis, 2019. http://ndltd.ncl.edu.tw/handle/he3bu4.
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碩士國立臺灣藝術大學
戲劇學系表演藝術碩士班
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This study is based on the study of indie music. The definition of indie music, whether in the industry or academic circles, has its views and interpretations, and the indie music label is an important part of operating indie music. Bridges, among which the problems of ideology, autonomous mode and identity identification derived from indie music are especially reviewed. In addition to borrowing and combing, the researchers review the relevant literatures at the same time, and at the same time From the perspective of exploring the indie label of Macao, and exploring the uniqueness and value and positioning of the music environment in Macau, I hope that this study can clarify the beginning of the relationship. Based on the origin of indie music in the West, which extends to different places and then develops, all of which contain the natural color of Western elements, but with strong local character and consciousness, which also involves information from the past. Developed, and the introduction of indie music also has the fusion and impact of globalization. What appears here is not only the breakthrough in music techniques and the innovation in style. The content of music also leads the masses to think about themselves. Value and a spiritual channel to awaken social issues, young people also gain identity and sensory cultural identity through different types of music exchange. In addition to the local characteristics, music works in addition to the local characteristics of the independent music, part of the expression of the sense of autonomy in the identity of different classes in the current era, but also the accusation of social injustice, music The aesthetic standards of the image also develop different criteria along with the social functions and cultural identity that emerged from it. This article begins with the development background of music such as “underground”, “non-mainstream” or “alternative” in Macao. By grasping more information about the development history and current situation of indie music, it will continue to launch the indie label of Macao. People visit, including "4daz-le", "Day's Eye Records" and "Warm Wall", starting from their team's motives and goals, personal or team music background, and deepening their creation. The relationship between concept and brand positioning gradually explores the context of its music environment and cultural atmosphere, and then combs the development history of Macao's indie music and explores its cultural ecology. This article will also pursue the role played by the indie label in the operation of the Macao music environment through indie label management of indie music, but compare the three brands to each other and then integrate the indie label of Macau. Institutions and structures, thus extending the ideology and identity of the group, and then presenting the artistic value of the indie music culture.
Bücher zum Thema "Wall label"
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Brown, Iain Gordon. Monumental reputation: Robert Adam and the Emperor's Palace : wall panel texts and exhibit labels forming a retrospective catalogue of the exhibition held at the National Library of Scotland, 1 June - 30 September 1992 and at Kenwood, London, 6 November 1992 - 28 February 1993 : catalogue. Edinburgh: National Library of Scotland, 1993.
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Mendelson, Cheryl. Home Comforts: The Art & Science of Keeping House. New York, USA: Scribner, 2005.
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Mendelson, Cheryl. Home Comforts: The Art and Science of Keeping House. 4. Aufl. New York, USA: Scribner, 1999.
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Beer Labels 2013 Wall Calendar. Andrews McMeel Publishing, 2012.
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Gregory, Deborah W. Financial Psychopaths. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780190269999.003.0009.
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The term “financial psychopath” was coined after the financial crisis of 2007−2008. Intended as a term of derision, the media used it to negatively label financial professionals, rather than to draw a clinical profile. The expression succinctly conveys the widespread post−2008 public anger and resentment toward those in the finance profession, particularly on Wall Street, who were responsible for damaging the world economy and destroying the personal wealth of many people. In the decades before the financial crisis, multiple factors had come together to change the operating structure of the financial landscape. This new environment was conducive to investment professionals’ engaging in transactions bearing the hallmarks of psychopathic behavior. What defines a financial psychopath? Is the answer in the individual’s personality traits, the behavioral edicts dictated by the environment within which he or she works, or a combination? This chapter attempts to answer these questions.
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Walk with Jesus Gold Plated Lapel Pin. Bob Siemon Designs, 1994.
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Leon, Sharon. Complexity and Collaboration. Herausgegeben von Paula Hamilton und James B. Gardner. Oxford University Press, 2017. http://dx.doi.org/10.1093/oxfordhb/9780199766024.013.2.
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Since the popular emergence of the World Wide Web in the early 1990s, nothing has been clearer about the digital environment than that it changes at a breakneck pace, making it a constant challenge of adaptation for content providers. Public historians who may have come of age in the context of writing either concise wall labels for the public or extended scholarly articles and conference papers for their fellow historians might find the pace and the level of flexibility and interactivity of the Web disconcerting, but in the end, the advantages for the practice of public history are extensive. Breaking the constraints of a physical site by effectively using the Web leaves public historians constrained only by their time, resources, and imagination. This chapter deals specifically with the various modes of communication that are available to public historians through the use of new media.
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Di Cerbo, Cristiana, und Richard Jasnow. On the Path to the Place of Rest. Lockwood Press, 2022. http://dx.doi.org/10.5913/2022419.
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In this volume Christina Di Cerbo and Richard Jasnow publish 92 Demotic graffiti, along with several ostraca and mummy bandages, from Theban Tombs 11, 12, Tomb-399-, and environs recorded and studied under the aegis of the Spanish Mission at Dra Abu el-Naga directed by José Galán. These texts from the mid-second century BCE were inscribed on the tomb walls by workers of the Ibis and Falcon cult, who used the New Kingdom tombs as burial places for mummified birds dedicated to the gods Thoth and Horus. This varied corpus of texts includes not only votive formulae and lists of names, but, most unusually, labels for chambers and halls to guide the men depositing the mummies through the labyrinthine catacombs. The cult workers also recorded important burials and memorialized events of special significance, as when a massive conflagration broke out that consumed several mummies and damaged the tomb walls. The Missions conservators recovered many hitherto virtually invisible graffiti. Numerous inscriptions posed daunting epigraphic challenges; the text editors employed computer applications, especially DStretch, in order to enhance the digital images forming the basis for decipherment. In an introductory chapter Galán discusses the work of the Spanish Mission at Dra Abu Naga and recounts the complicated history of this important area of the Theban Necropolis down to the Roman period. The graffiti illustrate how New Kingdom tombs were reused for the sacred animal cult in the Ptolemaic period. Francisco Bosch-Puche and Salima Ikram contribute a detailed chapter analyzing the archaeological context of the graffiti and the material evidence for the animal cult in the site. The volume, a holistic study of this area at the twilight of Pharaonic history, represents a true collaboration between archaeologists and philologists.
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Mendelson, Cheryl. Home Comforts: The Art & Science of Keeping House. Scribner, Armstrong, and Co., 1999.
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Mendelson, Cheryl. Home Comforts: The Art and Science of Keeping House. Scribner, 2002.
Den vollen Inhalt der Quelle findenBuchteile zum Thema "Wall label"
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Dai, Qionghai, und Yue Gao. „Typical Hypergraph Computation Tasks“. In Artificial Intelligence: Foundations, Theory, and Algorithms, 73–99. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-0185-2_5.
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AbstractAfter hypergraph structure generation for the data, the next step is how to conduct data analysis on the hypergraph. In this chapter, we introduce four typical hypergraph computation tasks, including label propagation, data clustering, imbalance learning, and link prediction. The first typical task is label propagation, which is to predict the labels for the vertices, i.e., assigning a label to each unlabeled vertex in the hypergraph, based on the labeled information. In general cases, label propagation is to propagate the label information from labeled vertices to unlabeled vertices through structural information of the hyperedges. In this part, we discuss the hypergraph cut on hypergraphs and random walk interpretation of label propagation on hypergraphs. The second typical task is data clustering, which is formulated as dividing the vertices into several parts in a hypergraph. In this part, we introduce a hypergraph Laplacian smoothing filter and an embedded model for hypergraph clustering tasks. The third typical task is cost-sensitive learning, which targets on learning with different mis-classification costs. The fourth typical task is link prediction, which aims to discover missing relations or predict new coming hyperedges based on the observed hypergraph.
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Liao, Yongxin, Shenxi Yuan, Jian Chen, Qingyao Wu und Bin Li. „Joint Classification with Heterogeneous Labels Using Random Walk with Dynamic Label Propagation“. In Advances in Knowledge Discovery and Data Mining, 3–13. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31753-3_1.
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Patel, Hemi, und Jai Prakash Verma. „Community Detection Using Label Propagation Algorithm with Random Walk Approach“. In Lecture Notes in Electrical Engineering, 307–20. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-6737-5_25.
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Pan, Jing, Yajun Yang, Qinghua Hu und Hong Shi. „A Label Inference Method Based on Maximal Entropy Random Walk over Graphs“. In Web Technologies and Applications, 506–18. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-45814-4_41.
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Bian, Ang, Aaron Scherzinger und Xiaoyi Jiang. „An Enhanced Multi-label Random Walk for Biomedical Image Segmentation Using Statistical Seed Generation“. In Advanced Concepts for Intelligent Vision Systems, 748–60. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-70353-4_63.
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Li, Xiaohong, Fanyi Yang, Yuyin Ma und Huifang Ma. „Multi-label Classification of Short Text Based on Similarity Graph and Restart Random Walk Model“. In IFIP Advances in Information and Communication Technology, 67–77. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46931-3_7.
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Ippolito, Jon. „6 Death by Wall Label“. In New Media in the White Cube and Beyond, 106–32. University of California Press, 2009. http://dx.doi.org/10.1525/9780520942349-008.
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„The Labels“. In Winning the Mental Game on Wall Street, 65–69. CRC Press, 2000. http://dx.doi.org/10.1201/9781420033090.ch17.
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Dorsey, Bruce. „The Haystack“. In Murder in a Mill Town, 7—C1F2. Oxford University PressNew York, 2023. http://dx.doi.org/10.1093/oso/9780197633090.003.0002.
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Abstract In December 1832, a farmer discovers a young woman’s body hanging from a stake at his haystack in Tiverton, Rhode Island. Local residents scramble to explain the death of Sarah Maria Cornell, who recently moved to the fast-growing textile manufacturing town of Fall River, Massachusetts, to labor in its factories, a short walk across the state line from the scene of her death. As a coroner’s jury attempts to pass judgment, following her burial the farmer finds a handwritten note among her possessions that points toward Rev. Ephraim K. Avery, a married Methodist minister from nearby Bristol, Rhode Island. Over the next year and beyond, that note would incite endless stories from countless storytellers, rippling outward from Fall River and New England to enter the national consciousness. From the moment Maria’s body was discovered, people turned to an assortment of labels to describe her. She was a Methodist, a prostitute, a crazy woman, a pious female, a wayward daughter. But most of all she was a “factory girl,” a label that carried its own array of preconceptions.
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Kashima, Hisashi, Hiroto Saigo, Masahiro Hattori und Koji Tsuda. „Graph Kernels for Chemoinformatics“. In Chemoinformatics and Advanced Machine Learning Perspectives, 1–15. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-61520-911-8.ch001.
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The authors review graph kernels which is one of the state-of-the-art approaches using machine learning techniques for computational predictive modeling in chemoinformatics. The authors introduce a random walk graph kernel that defines a similarity between arbitrary two labeled graphs based on label sequences generated by random walks on the graphs. They introduce two applications of the graph kernels, the prediction of properties of chemical compounds and prediction of missing enzymes in metabolic networks. In the latter application, the authors propose to use the random walk graph kernel to compare arbitrary two chemical reactions, and apply it to plant secondary metabolism.
Konferenzberichte zum Thema "Wall label"
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Landes, Timm, Inga Weisheit, Alphonse Mathew, Eren Alkanat, Miroslav Zabic, Thomas Debener und Dag Heinemann. „Brillouin and Raman imaging for plant cell wall mechanics“. In Label-free Biomedical Imaging and Sensing (LBIS) 2023, herausgegeben von Natan T. Shaked und Oliver Hayden. SPIE, 2023. http://dx.doi.org/10.1117/12.2649829.
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Xu, Zhoubing, Rebeccah B. Baucom, Richard G. Abramson, Benjamin K. Poulose und Bennett A. Landman. „Whole abdominal wall segmentation using augmented active shape models (AASM) with multi-atlas label fusion and level set“. In SPIE Medical Imaging, herausgegeben von Martin A. Styner und Elsa D. Angelini. SPIE, 2016. http://dx.doi.org/10.1117/12.2216841.
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Cheng, Weiqing, Xiao Sun, Shengwei Ye, Bocheng Yuan, Xuefeng Liu, John H. Marsh und Lianping Hou. „Inner-Wall Grating Double Slot Microring Resonator for High Sensitivity and Large Measurement Range Label-Free Biochemical Sensing“. In CLEO: Science and Innovations. Washington, D.C.: Optica Publishing Group, 2023. http://dx.doi.org/10.1364/cleo_si.2023.stu4o.2.
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Grabowski, E. F., und K. McKenny. „CHARACTERIZATION OF DISORDERS OF PLATELET-VESSEL WALL INTERACTION IN AN AGGREGOMETER INCORPORATING BLOOD FLOW PAST AN ENDOTHELIAL CELL MONOLAYER“. In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644537.
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Epi-fluorescence videomicroscopy permits real-time imaging of platelet (plt) adhesion-aggregation to a defined microinjury site of an endothelial cell monolayer (ECM) exposed to flowing blood. The fluorescent label is the TAB murine monoclonal antibody (courtesy of Dr. R.P. McEver) directed against human pit cp HB, together with a fluorescein-conjugated goat F(ab')2 against murine immunoglobulin. The combination assures specificity for pit membranes, yet leaves pit function intact. Bovine aortic ECM, grown on rectangular cover glasses, comprise one wall of a flow chamber mounted on a vertical microscope stage. A 6-0 sterile suture, drawn across the ECM in a direction transverse to flow, creates microinjuries of width 70 ± 15 (mean ± SD). Pit deposition is virtually absent upon intact and confluent regions of the ECM. On microinjury sites and at a shear rate of 270 sec-1, however, computer-enhanced images show pit adherence, aggregation, and embolization. Pretreatment of the ECM with 1.0 mMFC lysine acetyl salicylate, further, leads to a three-fold increase in aggregate length. ECM products inhibitable by aspirin, therefore, modulate adhesion-aggregation in disease and normal states under physiologic flow conditions. The Table shows that nercent coverage of the injury area, and mean aggregate length readily discriminate normal, post-aspirin, and von Willebrand's (vWD's) bloods. Aggregate length is reduced in vWD's blood to a greater degree (p<0.01) than by oral aspirin, while the latter is associated with a paradoxic increase (p<0.01) in single plt adhesion.
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Wu, Junshuang, Richong Zhang, Yongyi Mao, Masoumeh Soflaei Shahrbabak und Jinpeng Huai. „Hierarchical Modeling of Label Dependency and Label Noise in Fine-grained Entity Typing“. In Thirtieth International Joint Conference on Artificial Intelligence {IJCAI-21}. California: International Joint Conferences on Artificial Intelligence Organization, 2021. http://dx.doi.org/10.24963/ijcai.2021/544.
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Fine-grained entity typing (FET) aims to annotate the entity mentions in a sentence with fine-grained type labels. It brings plentiful semantic information for many natural language processing tasks. Existing FET approaches apply hard attention to learn on the noisy labels, and ignore that those noises have structured hierarchical dependency. Despite their successes, these FET models are insufficient in modeling type hierarchy dependencies and handling label noises. In this paper, we directly tackle the structured noisy labels by combining a forward tree module and a backward tree module. Specifically, the forward tree formulates the informative walk that hierarchically represents the type distributions. The backward tree models the erroneous walk that learns the noise confusion matrix. Empirical studies on several benchmark data sets confirm the effectiveness of the proposed framework.
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Jin, Di, Rui Wang, Meng Ge, Dongxiao He, Xiang Li, Wei Lin und Weixiong Zhang. „RAW-GNN: RAndom Walk Aggregation based Graph Neural Network“. In Thirty-First International Joint Conference on Artificial Intelligence {IJCAI-22}. California: International Joint Conferences on Artificial Intelligence Organization, 2022. http://dx.doi.org/10.24963/ijcai.2022/293.
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Graph-Convolution-based methods have been successfully applied to representation learning on homophily graphs where nodes with the same label or similar attributes tend to connect with one another. Due to the homophily assumption of Graph Convolutional Networks (GCNs) that these methods use, they are not suitable for heterophily graphs where nodes with different labels or dissimilar attributes tend to be adjacent. Several methods have attempted to address this heterophily problem, but they do not change the fundamental aggregation mechanism of GCNs because they rely on summation operators to aggregate information from neighboring nodes, which is implicitly subject to the homophily assumption. Here, we introduce a novel aggregation mechanism and develop a RAndom Walk Aggregation-based Graph Neural Network (called RAW-GNN) method. The proposed approach integrates the random walk strategy with graph neural networks. The new method utilizes breadth-first random walk search to capture homophily information and depth-first search to collect heterophily information. It replaces the conventional neighborhoods with path-based neighborhoods and introduces a new path-based aggregator based on Recurrent Neural Networks. These designs make RAW-GNN suitable for both homophily and heterophily graphs. Extensive experimental results showed that the new method achieved state-of-the-art performance on a variety of homophily and heterophily graphs.
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Fonseca, Gabriel Barbosa, Zenilton K. G. Patrocínio Jr, Guillaume Gravier und Silvio Jamil F. Guimarães. „Multimodal person discovery using label propagation over speaking faces graphs“. In XXXII Conference on Graphics, Patterns and Images. Sociedade Brasileira de Computação - SBC, 2019. http://dx.doi.org/10.5753/sibgrapi.est.2019.8312.
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The indexing of large datasets is a task of great importance, since it directly impacts on the quality of information that can be retrieved from these sets. Unfortunately, some datasets are growing in size so fast that manually indexing becomes unfeasible. Automatic indexing techniques can be applied to overcome this issue, and in this study, a unsupervised technique for multimodal person discovery is proposed, which consists in detecting persons that are appearing and speaking simultaneously on a video and associating names to them. To achieve that, the data is modeled as a graph of speaking-faces, and names are extracted via OCR and propagated through the graph based on audiovisual relations between speaking faces. To propagate labels, two graph based methods are proposed, one based on random walks and the other based on a hierarchical approach. In order to assess the proposed approach, we use two graph clustering baselines, and different modality fusion approaches. On the MediaEval MPD 2017 dataset, the proposed label propagation methods outperform all literature methods except one, which uses a different approach on the pre-processing step. Even though the Kappa coefficient indicates that the random walk and the hierarchical label propagation produce highly equivalent results, the hierarchical propagation is more than 6 times faster than the random walk under same configurations.
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Keretchashvili, Gurami, Ting Lei, Pontus Loviken, Josselin Kherroubi, Lin Liang, Adam Donald und Romain Prioul. „Machine-Learning-Enabled Joint Interpretation of Dipole Sonic and Borehole Image Data“. In 2023 SPWLA 64th Annual Symposium. Society of Petrophysicists and Well Log Analysts, 2023. http://dx.doi.org/10.30632/spwla-2023-0089.
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Borehole sonic and formation image logs represent two widely used measurements for formation evaluation. Many important geomechanical and geological features, such as thin layers, breakouts, natural fractures, drilling fractures, stress effects, and intrinsic anisotropic effects, can be detected by either or both measurements. These features have noticeable impacts on geomechanical and petrophysical applications. Therefore, it is important to label and classify them as accurately as possible. On the one hand, the borehole sonic measurement, which is usually used to provide valuable inputs for rock elastic properties, is now regularly used to classify anisotropy mechanisms with the development of a wideband dipole dispersion extraction algorithm. However, due to its long wavelength, the dipole sonic measurements do not probe borehole walls at high resolutions or with high confidence. The borehole image measurement, such as microresistivity and ultrasonic data, on the other hand, can provide rich information around borehole surfaces at a much higher resolution. An efficient way to integrate the two measurements yields a better understanding of geomechanical and geological features. In this study, we present a new machine-learning (ML)-enabled workflow that integrates the interpretation of borehole dipole sonic data and microresistivity borehole image data. The first step is to label sonic dispersion features under three main categories based on cross-dipole dispersion signatures. The first category is about borehole and tool conditions, where dipole dispersion showing various levels of frequency shifting signature are labeled. The second category, extrinsic anisotropy, is to label logging intervals with the existence of strong or weak azimuthal anisotropy dispersions. This type of azimuthal anisotropy can be caused by several factors, including fractures, stresses, or dipping layers. The third category, intrinsic anisotropy, labels intervals into various degrees of vertical transverse isotropy (VTI) types based on a physical-driven ML classifier. In the second step, cross-dipole dispersion splitting labels are further compared against borehole image data using analytical and ML methods. The comparison is carried out to resolve the non-uniqueness issue found in the first step, where different physical factors might demonstrate similar dispersion signatures. Consequently, the new comparison workflow allows us to distinguish ambiguities efficiently and accurately between tool decentralization and breakout and between layer-induced and stress-induced azimuthal anisotropy. Finally, modeling studies are performed to verify the labeling accuracy. We apply the developed workflow to a field case. The study first demonstrates that it can be difficult to label all features relying on either measurement independently. However, joint interpretation can resolve ambiguity and improve classification significantly. Labeled data were then used for a geomechanical study to build a mechanical earth model (MEM). It was found that an increased level of accuracy in the classification can enable a better estimation of formation in-situ stresses in the MEM workflow. The labels enable a good understanding of the in-situ elastic mechanism. The ambiguity issues resolved using this ML workflow help to de-risk geomechanical analysis in a way that is automatic.
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Grabowski, F. E. „RHEOLOGY AND PRIMARY HEMOSTASIS“. In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643986.
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Overview The adhesion-aggregation of platelets to a site of vessel wall injury is a quintessential blood flow phenomenon. Firstly, platelets are driven to the vicinity of the vessel wall by a form of convective diffusion in which red cells both mechanically augment the effective platelet diffusivity (Turitto et al., Ind. Eng. Chem. Fund. 11:216-223, 1972; Grabowski et al., Ind. Eng. Chem. Fund. 11:224-232, 1972) and enhance the near-wall piatelet concentration (Ti11es and Eckstein, Microvasc Res., In press, 1987). Secondly, red cells subjected to physiologic shear forces are capable of secreting sufficient adenine nucleotides to induce primary platelet aggregation without themselves undergoing frank lysis (Reimers et al, Blood 64:1200-1206, 1984). This "humoral" effect of erythrocytes is likely to contribute to primary hemostasis in a shear stress-dependent manner. Thirdly, endothelial cells are able to modulate platelet aggregation at a site of vessel injury by producing prostacyclin (and perhaps other antithrombotic substances) in a manner which increases with vessel shear rate (Grabowski et al, Blood 62:301a, 1983); production for a large range of arterial shear rates appears to be limited by plasma-borne substrate (arachidonate). This manner of production ensures a concentration of prostacyclin in the near-wall region which remains relatively independent of shear rate.Imaging primary hemostasis. In our work, epi-fluorescence videomicroscopy has allowed real time imaging of platelet adhesion-aggregation to a simulated vessel wall injury. The injury model is an endothelial cell monolayer (ECM) across which, prior to ECM exposure to flowing blood, a 6-0 sterile suture is drawn in a direction transverse to flow. Microinjuries result which measure 70 ± 15μm (Mean ± SD) in width. The fluorescent label is the TAB murine monoclonal antibody (courtesy of Dr. R.P. McEver) directed against human platelet GPIIB, together with a fluorescein-conjugated goat F(ab')2 against murine inmunoglobulin. The injured ECM's, grown to confluence on rectangular cover glasses precoated with microfibrillar collagen, comprise one wall of a flow chamber mounted on a vertical microscope stage. On microinjury sites and at shear rates of 100 to 700 sec-1, computer-enhanced video images show adherence, remodelling and growth of chains of platelet aggregates. Aligned with the flow direction, these chains have a spacing of approximately 30)im, a length similar to the average endothelial cell diameter. One may speculate that such chains provide a scaffold for wound healing insofar as they are likely rich in agents chemotactic for leukocytes and in platelet-derived growth factor.Modulatory role of endothelium. When the ECM's are pre treated with 1.0 mM FC lysine acetyl sal icy late (LA), aggregate length increases (P<0.001) up totwo-fold, outflow levels by RIA of serum thromboxane B2 increase (8 of 8 paired runs), and outflow levels of prostacyclin by RIA for 6-Keto PGFiot decrease (5 of 7 paired runs). The Table gives data for one of four similar experiments at 270 sec-1 and following five minutes of flow. These data imply that products of ECM which are inhibitable by aspirin modulate local adhesion-aggregation; their inhibition, as by vasculitis or drugs, may give rise to thrombotic states.Bleeding disorders. Aggregate length is reduced in von Willebrand's disease (4 patients), Hermansky-Pudlak syndrome (2 patients), and after 300 mg oral aspirin (Tablet 4 donors). The reduction in the first two, however, is greater (P<0.01) than that for oral aspirin. With oral aspirin, further, there is a paradoxic increase in the percent platelet coverage of the injury area. Summary. Rheology has profound effects on the rate, structure, and modulation of primary hemostasis. Many of these effects can be studied via real-time, epi-fluorescence videomicroscopy of platelet adhesion-aggregation to a site of injury to an endothelial cell monolayer exposed to flowing blood. The model described has application to the study of thrombotic and hemostatic disorders and unstable angina.
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Liu, Jinhong, und Juan Yang. „Multi-label Classification Using Random Walk with Restart“. In 2017 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery (CyberC). IEEE, 2017. http://dx.doi.org/10.1109/cyberc.2017.84.
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Otegui, Marisa, Kevin Eliceiri, Jenu Chacko und Han Nim Lee. Multiparametric optical label-free imaging to analyze plant cell wall assembly and metabolism. Office of Scientific and Technical Information (OSTI), April 2023. http://dx.doi.org/10.2172/1969880.
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Brenan, J. M., K. Woods, J. E. Mungall und R. Weston. Origin of chromitites in the Esker Intrusive Complex, Ring of Fire Intrusive Suite, as revealed by chromite trace element chemistry and simple crystallization models. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328981.
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To better constrain the origin of the chromitites associated with the Esker Intrusive Complex (EIC) of the Ring of Fire Intrusive Suite (RoFIS), a total of 50 chromite-bearing samples from the Black Thor, Big Daddy, Blackbird, and Black Label chromite deposits have been analysed for major and trace elements. The samples represent three textural groups, as defined by the relative abundance of cumulate silicate phases and chromite. To provide deposit-specific partition coefficients for modeling, we also report on the results of laboratory experiments to measure olivine- and chromite-melt partitioning of V and Ga, which are two elements readily detectable in the chromites analysed. Comparison of the Cr/Cr+Al and Fe/Fe+Mg of the EIC chromites and compositions from previous experimental studies indicates overlap in Cr/Cr+Al between the natural samples and experiments done at &gt;1400oC, but significant offset of the natural samples to higher Fe/Fe+Mg. This is interpreted to be the result of subsolidus Fe-Mg exchange between chromite and the silicate matrix. However, little change in Cr/Cr+Al from magmatic values, owing to the lack of an exchangeable reservoir for these elements. A comparison of the composition of the EIC chromites and a subset of samples from other tectonic settings reveals a strong similarity to chromites from the similarly-aged Munro Township komatiites. Partition coefficients for V and Ga are consistent with past results in that both elements are compatible in chromite (DV = 2-4; DGa ~ 3), and incompatible in olivine (DV = 0.01-0.14; DGa ~ 0.02), with values for V increasing with decreasing fO2. Simple fractional crystallization models that use these partition coefficients are developed that monitor the change in element behaviour based on the relative proportions of olivine to chromite in the crystallizing assemblage; from 'normal' cotectic proportions involving predominantly olivine, to chromite-only crystallization. Comparison of models to the natural chromite V-Ga array suggests that the overall positive correlation between these two elements is consistent with chromite formed from a Munro Township-like komatiitic magma crystallizing olivine and chromite in 'normal' cotectic proportions, with no evidence of the strong depletion in these elements expected for chromite-only crystallization. The V-Ga array can be explained if the initial magma responsible for chromite formation is slightly reduced with respect to the FMQ oxygen buffer (~FMQ- 0.5), and has assimilated up to ~20% of wall-rock banded iron formation or granodiorite. Despite the evidence for contamination, results indicate that the EIC chromitites crystallized from 'normal' cotectic proportions of olivine to chromite, and therefore no specific causative link is made between contamination and chromitite formation. Instead, the development of near- monomineralic chromite layers likely involves the preferential removal of olivine relative to chromite by physical segregation during magma flow. As suggested for some other chromitite-forming systems, the specific fluid dynamic regime during magma emplacement may therefore be responsible for crystal sorting and chromite accumulation.