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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
381

[en] ARIA DA CAPO: AN ANNOTATED TRANSLATION OF A PLAY BY EDNA ST. VINCENT MILLAY / [pt] ARIA DA CAPO: TRADUÇÃO ANOTADA DE UMA PEÇA DE EDNA ST. VINCENT MILLAY

LARISSA LINS DE FREITAS OLIVEIRA 26 April 2024 (has links)
[pt] Os estudos em torno de Edna St. Vincent Millay (1892—1950) apresentam lacunas. Sua obra é atrelada a um romantismo extemporâneo, incompatível com as revoluções formais que fundaram o cânone modernista. Contudo, foi contemporânea de autores que forjaram esse cânone. Uma análise formal de seu trabalho que leve em conta critérios mais consensuais em estudos de forma é imprescindível para refletir sobre isso; mas limitar-se a essa análise seria insuficiente para entender a complexidade de um trabalho como a peça Aria da capo, que parece simples em um primeiro momento, mas que traz em si o âmago dessas lacunas a serem investigadas em torno de Millay. Levando-se em conta alguns conceitos-chave em Estudos da Tradução, que se consolidam a partir da Virada Cultural que combina os Estudos Culturais com os Estudos Feministas, e, ainda, tomando como base a premissa fundamental em Paulo Henriques Britto segundo a qual os aspectos formais de um texto muitas vezes contêm mais poeticidade do que o sentido das palavras, esta pesquisa tem o intuito de apresentar uma tradução anotada dessa peça. Pretende-se, assim, analisar seus desafios tradutórios sem deixar de lado as especificidades relativas à tradução de teatro que, neste caso, alinha-se à tradução de poesia por se tratar de um drama em verso do início do século XX. Ao tangenciar as idiossincrasias do trabalho dessa autora a partir da tradução desta peça, observando sua proposta estética e seus ideais para pensar o lugar que ela ocupa, almeja-se colaborar para difundir sua obra. / [en] Studies on Edna St. Vincent Millay (1892—1950) contain gaps. Her work is yoked to a dated romanticism, incompatible with the formal revolutions that founded the modernist canon. Nevertheless, she was a contemporary of authors who forged this canon. A formal analysis of her work that takes into account more consensual criteria in studies of form is essential to reflect on this; but limiting oneself to this analysis would be insufficient to understand the complexity of a work such as the play Aria da capo, which seems simple at first, but bears within itself the core of these gaps to be investigated around Millay. Taking into account some key concepts in Translation Studies, which have been consolidated since the Cultural Turn that combines Cultural Studies with Feminist Studies, and also based in Paulo Henriques Britto s fundamental premise according to which the formal aspects of a text often contain more poetic character than the meaning of the words, this research aims to present an annotated translation of this play. The aim is to analyze its translational challenges without neglecting the specificities of theater translation, which, in this case, also includes problems of poetry translation, since it is a drama in verse from the early 20th century. By touching on the idiosyncrasies of this author s work through the translation of this play, observing her aesthetic proposal and her ideals in order to reflect on the role she occupies, this study intends to contribute to the dissemination of her work.
382

Dental health and disease.

Ogden, Alan R., Lee, F. January 2008 (has links)
No / No abstract
383

Segmentation and Tracking of Cells and Nuclei Using Deep Learning

Hirsch, Peter Johannes 27 September 2023 (has links)
Die Analyse von großen Datensätzen von Mikroskopiebilddaten, insbesondere Segmentierung und Tracking, ist ein sehr wichtiger Aspekt vieler biologischer Studien. Für die leistungsfähige und verlässliche Nutzung ist der derzeitige Stand der Wissenschaft dennoch noch nicht ausreichend. Die vorhandenen Methoden sind oft schwer zu benutzen für ungeübte Nutzer, die Leistung auf anderen Datensätzen ist häufig verbesserungswürdig und sehr große Mengen an Trainingsdaten werden benötigt. Ich ging dieses Problem aus verschiedenen Richtungen an: (i) Ich präsentiere klare Richtlinien wie Artefakte beim Arbeiten mit sehr großen Bilddaten verhindert werden können. (ii) Ich präsentiere eine Erweiterung für eine Reihe von grundlegenden Methoden zur Instanzsegmentierung von Zellkernen. Durch Verwendung einer unterstützenden Hilfsaufgabe ermöglicht die Erweiterung auf einfache und unkomplizierte Art und Weise Leistung auf dem aktuellen Stand der Wissenschaft. Dabei zeige ich zudem, dass schwache Label ausreichend sind, um eine effiziente Objekterkennung auf 3d Zellkerndaten zu ermöglichen. (iii) Ich stelle eine neue Methode zur Instanzsegmentierung vor, die auf eine große Auswahl von Objekten anwendbar ist, von einfachen Formen bis hin zu Überlagerungen und komplexen Baumstrukturen, die das gesamte Bild umfassen. (iv) Auf den vorherigen Arbeiten aufbauend präsentiere ich eine neue Trackingmethode, die auch mit sehr großen Bilddaten zurecht kommt, aber nur schwache und dünnbesetzte Labels benötigt und trotzdem besser als die bisherigen besten Methoden funktioniert. Die Anpassungsfähigkeit an neue Datensätze wird durch eine automatisierte Parametersuche gewährleistet. (v) Für Nutzer, die das Tracking von Objekten in ihrer Arbeit verwenden möchten, präsentiere ich zusätzlich einen detaillierten Leitfaden, der es ihnen ermöglicht fundierte Entscheidungen zu treffen, welche Methode am besten zu ihrem Projekt passt. / Image analysis of large datasets of microscopy data, in particular segmentation and tracking, is an important aspect of many biological studies. Yet, the current state of research is still not adequate enough for copious and reliable everyday use. Existing methods are often hard to use, perform subpar on new datasets and require vast amounts of training data. I approached this problem from multiple angles: (i) I present clear guidelines on how to operate artifact-free on huge images. (ii) I present an extension for existing methods for instance segmentation of nuclei. By using an auxiliary task, it enables state-of-the-art performance in a simple and straightforward way. In the process I show that weak labels are sufficient for efficient object detection for 3d nuclei data. (iii) I present an innovative method for instance segmentation that performs extremely well on a wide range of objects, from simple shapes to complex image-spanning tree structures and objects with overlaps. (iv) Building upon the above, I present a novel tracking method that operates on huge images but only requires weak and sparse labels. Yet, it outperforms previous state-of-the-art methods. An automated weight search method enables adaptability to new datasets. (v) For practitioners seeking to employ cell tracking, I provide a comprehensive guideline on how to make an informed decision about what methods to use for their project.
384

Anfragebearbeitung auf Mehrkern-Rechnerarchitekturen

Huber, Frank 24 May 2012 (has links)
Der Trend zu immer mehr parallelen Recheneinheiten innerhalb eines Prozessors stellt an die Softwareentwicklung neue Herausforderungen. Um die vorhandenen Ressourcen auszulasten und die stetige Steigerung der Parallelität in einen Leistungszuwachs umzusetzen, muss Software von der sequentiellen Verarbeitung in eine hochgradig parallele Verarbeitung übergehen. Diese Arbeit untersucht, wie solch eine parallele Verarbeitung in Bezug auf Relationale Datenbankmanagementsysteme umzusetzen ist. Dazu wird zunächst der gesamte Prozess der Anfragebearbeitung betrachtet und vier Problembereiche identifiziert, die für das Ziel der parallelen Anfragebearbeitung auf Mehrkern-Rechnerarchitekturen maßgeblich sind. Diese Bereiche sind die Hardware selbst, das physische Datenmodell sowie die Anfrageausführung und -optimierung. Diese vier Bereiche werden innerhalb eines Rahmenwerkes betrachtet. Nach einer Einführung, wird sich die Arbeit zunächst mit Grundlagen befassen. Dazu werden die Hardwarebestandteile Speicher und Prozessor betrachtet und ihre Funktionsweise erläutert. Auf diesem Wissen aufbauend, wird ein Hardwaremodell definiert. Es ermöglicht eine von der jeweiligen Hardwarearchitektur unabhängige Softwareentwicklung, ohne den Verlust an Funktionalität und Leistung. Im Weiteren wird das physische Datenmodell untersucht und analysiert, wie das physische Datenmodell eine optimale Anfrageausführung unterstützen kann. Die verwendeten Datenstrukturen müssen dafür einen effizienten und parallelen Zugriff erlauben. Die Analyse führt zur Entwicklung eines neuartigen Indexes, der die datenparallele Abarbeitung nutzt. Gefolgt wird dieser Teil von der Anfrageausführung, in der ein neues Anfrageausführungsmodell entwickelt wird, das auf der Verwendung des Taskkonzepts beruht und eine hohe und sehr leicht gewichtige Parallelität erlaubt. Den Abschluss stellt die Anfrageoptimierung dar, worin verschiedene Ideen für die Optimierung der Ressourcenverwaltung präsentiert werden. / The upcoming generation of many-core architectures poses several new challenges for software development: Software design and software implementation has to change from sequential execution to a highly parallel execution, such that it takes full advantage of the steadily growing number of cores on a single processor. With this thesis, we investigate such highly parallel program execution in the context of relational database management systems (RDBMSs). We consider the complete process of query processing and identify four problem areas which are crucial for efficient parallel query processing on many-core architectures. These four areas are: Hardware, physical data model, query execution, and query optimization. Furthermore, we present a framework which covers all four parts, one after another. First, we give a detailed survey of computer hardware with a special focus on memory and processors. Based on this survey we propose a hardware model. Our abstraction aims to simplify the task of software development on many-core hardware. Based on the hardware model, we investigate physical data models and evaluate how the physical data model may support optimal query execution by providing efficient and parallelizable data structures. Additionally, we design a new index structure that utilizes data parallel execution by using SIMD operations. The next layer within our framework is query execution, for which we present a new task based query execution model. Our query execution model allows for a lightweight parallelism. Finally, we cover query optimization by explaining approaches for optimizing resource utilization on a query local point of view as well as query global point of view.
385

Mirakler och helgonkult : Linköpings biskopdöme under senmedeltid

Fröjmark, Anders January 1992 (has links)
This work studies the introduction of three new cults of saints in the Linköping Bishopric during the Late Middle Ages. Two of them were based at Vadstena Convent: the Holy Bridgel (Birgitta, d. 1373) cult which had its beginning in 1374 and the cult of Katarina Ulfsdotter (d. 1381), which started during the 1410's. The third, the cult of Bishop Nils Hermansson (d. 1391), which originated at the latest in I40l. was associaled w ith the cathedral in Linköping. The introduction of a saint's cult may be relaled to the need of many people in medieval society for healing and protection. The tales about the saint's posthumous miracles played a key role in the introductory phase of the cults. In the dissertation such tales are used as the foundation for the analysis of the varied geographic and social patterns of distnbution of the three cults. The cult of the Holy Bridget was as much an intemational as a Swedish cult. The other cults studied were two of manv attempts to ride on the wave created by the successes of the Bridget cult. They may furthermore be regarded a response to various types of crises which the sponsoring institutions experienced. / Den 29 juni 1374 anlände ett skepp till Söderköpings hamn. Ombord fanns kvarlevorna efter den heliga Birgitta, vilka nu av dottern Katarina efter moderns önskemål skulle föras till Vadstena. När resföljet anlände till Sverige strömmade människor till från alla håll. De var redan klara över att i kistan låg relikema efter ett helgon. Ryktet om Birgittas förmåga att med sina förböner hjälpa sjuka och olycksdrabbåde människor var ett centralt inslag i den helgonkult som byggdes upp kring henne. Birgittakultens exempel lockade till efterföljd. Under det kommande århundradet etablerades ett pärlband av nya helgonkulter i Linköpings stift, däribland kulterna av Birgittas dotter Katarina (1381) och av biskop Nils Hermansson (1391). Denna doktorsavhandling fokuserar intresset på dessa helgonkulter i deras lanseringsskede. Den identifierar de grupper och institutioner som var särskilt aktiva i detta skede, och diskuterar de behov i dåtidens samhälle som gjorde att befolkningens breda lager tog till sig de nya helgonen. / <p>Doktoravhandlingen framlagd vid Uppsala universitet 1992</p>
386

Effects of freshwater discharges and habitat architecture on oyster reef community development and diversity

Unknown Date (has links)
Oyster reefs support diverse estuarine communities and food webs. Factors controlling oyster reef community development were studied on restored reefs in the St. Lucie Estuary. Freshwater discharges create stresses that cause oyster mortality, habitat loss and reduction in reef community diversity. Using structural equation modeling, it was demonstrated that salinity, turbidity, and chlorophyll-a gradients influence oysters and some reef invertebrate species, but did not support the predictions of the Intermediate Disturbance Hypothesis. In contrast, diversity and species richness were greatest at low stress sites. A field experiment showed that topographic relief and architectural complexity enhanced colonization and growth of reef-building species (e.g.oysters and mussels). The relief by complexity interaction had a higher order, synergistic effect on oyster abundance. When considered separately, increasing relief further enhanced dominant sessile taxa (cirripeds and ascideans) ; while, increasing complexity supported greater species richness and the abundance of cirripeds. / by Elizabeth A. Salewski. / Thesis (M.S.)--Florida Atlantic University, 2012. / Includes bibliography. / Mode of access: World Wide Web. / System requirements: Adobe Reader.
387

Modelling climate change impacts on mountain snow hydrology, Montana-Alberta

Larson, Robert, University of Lethbridge. Faculty of Arts and Science January 2008 (has links)
A modelling approach focused on snow hydrology was developed and applied to project future changes in spring streamflow volumes in the St. Mary River headwaters basin, Montana. A spatially distributed, physically-based, hydrometeorological and snow mass balance model was refined and used to produce snow water equivalent (SWE) and rainfall surfaces for the study watershed. Snowmelt runoff (SR) and effective rainfall runoff (RR) volumes were compiled for the 1961-2004 historical period. A statistical regression model was developed linking spring streamflow volume (QS) at Babb, Montana to the SR and RR modelled data. The modelling results indicated that SR explained 70% of the variability in QS while RR explained another 9%. The model was applied to climate change scenarios representing the expected range of future change to produce annual QS for the period 2010-2099. Compared to the base period (1961-1990), average QS change ranged from -3% to -12% for the 2020s period. Percent changes increased to between -25% and -32% for the 2050s, and -38% and -55% for the 2080s. Decreases in QS also accompanied substantial advances in the onset of spring snowmelt. Whereas the spring pulse onset on average occurred on April 8 for the base period, it occurred 36 to 50 days earlier during the 2080s. The findings suggest that increasing precipitation will not compensate for the effects of increasing temperature in watershed SWE and associated spring runoff generation. There are implications for stakeholder interests related to ecosystems, the irrigation industry, and recreation. / xii, 136 leaves : ill. ; 28 cm. --
388

Estudo do efeito antinociceptivo e/ou anti-inflamatório das folhas de Spiranthera odoratissima A. St.-Hil. (Manacá). -Possível mecanismo envolvido / Study of analgesic effect and / or anti-inflammatory Leaves Spiranthera odoratissima A. St.-Hil. (Manacá). -Possible mechanism involved

BARBOSA, Daniela Borges Marquez 30 August 2010 (has links)
Made available in DSpace on 2014-07-29T16:11:48Z (GMT). No. of bitstreams: 1 Daniela Borges Marquez Barbosa.pdf: 1035772 bytes, checksum: c1908f359735473ebf92878acb93eee7 (MD5) Previous issue date: 2010-08-30 / Spiranthera odoratissima A. St.-Hil. is popularly known as Manacá and it is a native plant of the Brazilian Savanna Cerrado, and it can be found in the states of Mato Grosso, Goiás, Minas Gerais and Bahia. In the folk medicine this plant is used as an appetite stimulant and to treat rheumatism, abdominal pain, headache, muscle pain, stomach and liver dysfunction, kidney infections and urinary retention. The hydromethanolic fraction was obtained from the ethanolic extract of Spiranthera odoratissima leaves. According to phytochemical screening this fraction contains anthraquinones, tannins, flavonoids and coumarins. This fraction showed antinociceptive activity in the acetic acid-induced writhing method and the involvement of central antinociceptive mechanisms was discarded with the hot plate test, since the reduction in the latency to pain was not observed. The major subfraction isolated from the hydromethanolic fraction (sub-Fr10-28) showed antiinflammatory activity in different methodologies. Both hydromethanolic fraction and sub-Fr10-28 contain tannins able to inhibit the activity of phospholipase A2 enzyme, and subsequently inhibiting the production of arachidonic acid and preventing the production of eicosanoids such as prostaglandins, thromboxanes and leukotrienes by lipoxygenase and cyclooxygenase enzymes participation. These eicosanoids are important mediators for the maintenance of inflammatory process. Concluding, the analgesic effect of this plant may be due to an anti-inflammatory action, and this antiinflammatory action could be the result from the blockage of the phospholipase A2 enzyme. / Spiranthera odoratissima, conhecida popularmente como Manacá nativa em cerrado ralo, é encontrada nos estados de Mato Grosso e Goiás, Minas Gerais e no estado da Bahia. Na medicina popular essa planta é utilizada para o tratamento de reumatismo, dores abdominais, dores de cabeça, dores musculares, dores de estômago, infecções renais e hepáticas, retenção urinária, e como depurativo e estimulante do apetite. Do extrato etanólico das folhas da Spiranthera odoratissima foi obtida a fração hidrometanólica contendo: antraquinonas, taninos, flavonóides e cumarinas. Essa fração mostrou atividade antinociceptiva pelo método de contorções abdominais induzidas por ácido acético em camundongos e foi descartado o envolvimento de mecanismos antinociceptivos centrais pelo teste da placa quente, onde observou-se a não redução da latência à dor. Foi isolada uma sub-fração majoritária nomeada sub-Fr10-28 que apresentou atividade antiinflamatória nas diferentes metodologias utilizadas. A fração hidrometanólica e sua sub-fração majoritária contêm taninos capazes de inibir a atividade da enzima Fosfolipase A2, inibindo a hidrólise do fosfolipídeo de membrana em ácido araquidônico e impedindo assim, que as enzimas lipoxigenase e ciclooxigenase produzam eicosanóides como prostaglandinas, tromboxanos e leucotrienos, importantes mediadores para a manutenção do processo inflamatório. O efeito analgésico desta planta pode ser devido a uma ação anti-inflamatória e esta pode estar relacionado ao bloqueio da enzima Fosfolipase A2 levando desta forma a uma redução na produção de mediadores inflamatórios.
389

Resource Centered Store

Heese, Ralf 04 January 2016 (has links)
Mit dem Resource Description Framework (RDF) können Eigenschaften von und die Beziehungen zwischen Ressourcen maschinenverarbeitbar beschrieben werden. Dadurch werden diese Daten für Maschinen zugänglicher und können unter anderem automatisch Daten zu einer Ressource lokalisieren und verarbeiten, unterschiedliche Bedeutungen einer Zeichenkette erkennen und implizite Informationen ableiten. Das Datenmodell von RDF und der zugehörigen Anfragesprache SPARQL basiert auf gerichteten und beschrifteten Multigraphen. Forschungsergebnisse haben gezeigt, dass relationale DBMS zum Verwalten von RDF-Daten ungeeignet sind. Native basierende RDF-DBMS können Anfragen in kürzerer Zeit verarbeiten. Der Leistungsgewinn wird durch redundantes Speichern von Tripeln in mehreren B+-Bäumen erzielt. Jedoch sind Join-ähnliche Operationen zum Berechnen des Ergebnisses erforderlich, was bei größeren Anfragen zu Leistungseinbußen führt. In dieser Arbeit wird der Resource Centered Store (RCS) entwickelt, dessen Speichermodell RDF-inhärente Eigenschaften ausnutzt, um Anfragen ohne die Notwendigkeit redundanter Speicherung effizient beantworten zu können. Die grundlegende Idee des RCS-Speichermodells besteht im Gruppieren der Daten als sternförmigen Teilgraphen auf Datenbankseiten. Die verwendeten Prinzipien ähnelt denen in RDBMS und daher können deren Algorithmen zur Beantwortung von Anfragen wiederverwendet werden. Darüber hinaus werden Transformationsregeln und Heuristiken zum Optimieren von SPARQL-Anfragen zum Finden eines möglichst optimalen Ausführungsplans definiert. In diesem Kontext wurden auch graphmusterbasierte Indexe spezifiziert und deren Nutzen für die Verarbeitung von Anfragen untersucht. Das RCS-Speichermodell wurde prototypisch implementiert und im Vergleich zum nativen RDF-DBMS Jena TDB evaluiert. Die durchgeführten Experimenten zeigen, dass das System insbesondere für das Beantworten von Anfragen mit großen sternförmigen Teilmustern geeignet ist. / The Resource Description Framework (RDF) is the conceptual foundation for representing properties of real-world or virtual resources and describing the relationships between them. Standards based on RDF allow machines to access and process information automatically and locate additional data about resources. It also supports the discovery of relationships between concepts. The smallest information unit in RDF are triples which form a directed labeled multi-graph. The query language SPARQL is also based on a graph model which makes it difficult for relational DBMS to store and query RDF data efficiently. The most performant DBMS for managing and querying RDF data implement a RDF-specific storage model based on a set of B+ tree indexes. The key disadvantages of these systems are the increased usage of secondary storage in cause of redundantly stored triples as well as the necessity of expensive join operation to compute the solutions of a SPARQL query. In this work we develop and describe the Resource Centered Store which exploits RDF inherent characteristics to avoid the requirement for storing triples redundantly while improving the query performance of larger queries. In the RCS storage model triples are grouped by their first component (subject) and storing these star-shaped subgraphs on database pages -- similar to relational DBMS. As a result the RCS can benefit from principles and algorithms that have been developed in the context of relational databases. Additionally, we defined transformation rules and heuristics to optimize SPARQL queries and generate an efficient query execution plan. In this context we also defined graph pattern based indexes and investigated their benefits for computing the solutions of queries. We implemented the RCS storage model prototypically and compared it to the native RDF DBMS Jena TDB. Our experiments showed that our storage model is especially suited to speed up the query performance of large star-shaped graph pattern.
390

Die Serie "Problemata musicologica" des Russischen Instituts für die Geschichte der Künste St. Petersburg

Lauer, Lucinde 21 March 2017 (has links) (PDF)
Das "Rossijskij institut istorii iskusstv" (Russisches Institut für die Geschichte der Künste) in St. Petersburg ist neben dem Moskauer "Institut iskusstvoznanija" das zweite russische Forschungsinstitut im geisteswissenschaftlichen Bereich. Obwohl um einiges älter als die seit 1944 existierende Moskauer Einrichtwlg vergleichbaren Zuschnitts - es wurde 1912 vom Grafen Zubov in seinem Palais gegenüber der Isaaks-Kathedrale gegründet - ist das Petersburger Institut im Westen wenig beachtet worden. Die wechselvolle Geschichte dieser Forschungsinstitution, die als Wiege der Formalistenschule um Viktor Sklovskij in die Annalen der modernen Geisteswissenschaften eingegangen ist, bedürfte noch einer eingehenden Untersuchung, wie sie hier nicht geleistet werden kann.

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