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Holographic RG-flows and the Domain-Wall/Cosmology correspondenceVaduret, Jean-François January 2022 (has links)
In this master thesis we investigate implications of the Domain-Wall/Cosmology (DW/C) correspondence on one-point functions of holographic RG-flows. The thesis gives a detailed computation of linearized gauge-invariant Einstein equations in (d+1) dimensions while making the DW/C correspondence explicit. Although holographic renormalization has previously been studied on Lorentzian manifolds, we extend its study to Lorentzian domain-wall solutions with a parameter η. This parameter is introduced to easily travel from domain-walls to cosmologies in the context of the DW/C correspondence. We present the calculation of the vacuum expectation value of general scalar boundary operators of conformal weight Δ dual to a (d+1)-dimensional bulk theory, while still making the DW/C correspondence appear explicitly. Finally, we study the application of these results to holographic RG-flow solutions. In particular, the GPPZ solution is investigated in the framework of the thesis. We find that the vacuum expectation value of the scalar field is invariant under the domain-wall/cosmology correspondence.
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FORMAL DEGREES AND LOCAL THETA CORRESPONDENCE: QUATERNIONIC CASE / 形式次数と局所テータ対応: 四元数ユニタリ群の場合Kakuhama, Hirotaka 23 March 2021 (has links)
京都大学 / 新制・課程博士 / 博士(理学) / 甲第22968号 / 理博第4645号 / 新制||理||1668(附属図書館) / 京都大学大学院理学研究科数学・数理解析専攻 / (主査)准教授 市野 篤史, 教授 池田 保, 教授 加藤 周 / 学位規則第4条第1項該当 / Doctor of Science / Kyoto University / DFAM
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A Unified Approach to GPU-Accelerated Aerial Video Enhancement TechniquesCluff, Stephen Thayn 12 February 2009 (has links) (PDF)
Video from aerial surveillance can provide a rich source of data for analysts. From the time-critical perspective of wilderness search and rescue operations, information extracted from aerial videos can mean the difference between a successful search and an unsuccessful search. When using low-cost, payload-limited mini-UAVs, as opposed to more expensive platforms, several challenges arise, including jittery video, narrow fields of view, low resolution, and limited time on screen for key features. These challenges make it difficult for analysts to extract key information in a timely manner. Traditional approaches may address some of these issues, but no existing system effectively addresses all of them in a unified and efficient manner. Building upon a hierarchical dense image correspondence technique, we create a unifying framework for reducing jitter, enhancing resolution, and expanding the field of view while lengthening the time that features remain on screen. It also provides for easy extraction of moving objects in the scene. Our method incorporates locally adaptive warps which allows for robust image alignment even in the presence of parallax and without the aid of internal or external camera parameters. We accelerate the image registration process using commodity Graphics Processing Units (GPUs) to accomplish all of these tasks in near real-time with no external telemetry data.
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Dynamic Correspondence of Resistance Training to Sport: A Brief ReviewSuarez, Dylan G., Wagle, John P., Cunanan, Aaron J., Sausaman, Robert W., Stone, Michael H. 01 August 2019 (has links)
THE PROPER APPLICATION OF THE PRINCIPLE OF SPECIFICITY IS ESSENTIAL TO ANY STRENGTH AND CONDITIONING PROGRAM. HOWEVER, THE TRANSFER OF RESISTANCE TRAINING TO SPORT IS HIGHLY COMPLEX, DIFFICULT TO PREDICT, AND CHALLENGING TO ASSESS. THIS BRIEF REVIEW EXAMINES THE PRINCIPLE OF DYNAMIC CORRESPONDENCE AS AN AID TOWARD BETTER UNDERSTANDING AND PREDICTING AN EXERCISE OR TRAINING METHOD'S POTENTIAL TRANSFER TO SPORT. PRACTICAL TRAINING RECOMMENDATIONS ARE GIVEN BASED ON THE RESEARCH REVIEWED.
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CERTAIN ASPECTS OF QUANTUM AND CLASSICAL INTEGRABLE SYSTEMSMaksim Kosmakov (16514112) 30 August 2023 (has links)
<p>We derive new combinatorail formulas for vector-valued weight functions for the evolution modules over the Yangians Y (gln). We obtain them using the Nested Algebraic Bethe ansatz method.</p>
<p>We also describe the asymptotic behavior of the radial solutions of the negative tt∗ equation via the Riemann-Hilbert problem and the Deift-Zhou nonlinear steepest descent method.</p>
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Environmental Variables Influencing the Severity of Pierce's Disease in California GrapevinesBoisseranc, Christopher James 01 June 2010 (has links) (PDF)
This project was designed to correlate environmental variables with the development of Pierce’s Disease (PD), an infection caused by the gram negative bacterium Xylella fastidiosa (Xf), in grapes (Hopkins et al. 2002). PD is one of the most difficult crop pathogens to manage because it is vectored by insects and its continued presence in the vine is usually fatal. PD is influenced by the interaction of host, disease and vector, and probably many other environmental variables. The general objective was to study and identify the most important variables involved in the expression of Pierce’s Disease.
Over a two year period, from a total of eight sites in northern and southern California data was collected on forty-five environmental variables including those relating to soil moisture, soil chemistry, soil nutritional status, vine nutritional status, vine water status, in-season and dormant season climate, incidence of Xf in adjacent vineyard vegetation, sharpshooter species and abundance at each location, and proximity of vineyard field sites to citrus or riparian areas.
The environmental variables were analyzed with canonical correspondence analysis (CCA) to determine significance of each as they correspond with increased disease severity. The significance of environmental variables produced by CCA indicates increased soil moisture as the leading cause for increased PD incidence; several other environmental variables positively correlate with increased disease presence. Conversely, vineyard factors identified by CCA as not conducive to disease formation may play an inhibitory role in PD severity.
We undertook polymerase chain reaction (PCR) to test for the presence of PD in vegetative samples, using a 733 base pair probe specific to Xf. These samples indicate alternative hosts in adjacent locations which act as reservoirs of Pierce’s Disease as well as verifying diseased vines within the vineyard locations.
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Harmful Algal Bloom (HAB) Communities and Co-occurring Species in Relation to Near Shore Ocean Dynamics in San Luis Bay, CaliforniaRankin, Samuel Christopher 01 June 2011 (has links) (PDF)
The occurrence of phytoplankton taxa, with special focus on harmful algal bloom (HAB) taxa, was monitored for one year off the central coast of California to examine both their co-occurrence and physical and chemical variables influencing their temporal patterns. Bi-weekly samples were taken from October 6, 2008 to October 5, 2009 in San Luis Obispo Bay, CA. Canonical correspondence analysis (CCA) of weekly samples indicated that 46.1% of the variability in species abundance was explained by the variables in the model, higher than previous reports. Cluster analysis divided phytoplankton communities into HAB and non-HAB groups of species, while shared distribution analysis identified specific co-occurring species of HABs. The HAB dinoflagellate group consisted exclusively of HAB taxa, including Cochlodinium polykrikoides Margalef, Dinophysis acuminata Claparède & Lachmann, and Alexandrium spp., and was correlated with a homogeneous water column and high nitrate concentration during the fall and winter seasons. The domoic acid producing diatoms Pseudo-nitzschia seriata (Cleve) H. Peragallo complex and Pseudo-nitzschia delicatissima (Cleve) Heiden complex grouped with several other non-HAB diatoms, and were correlated with warm, thermally stratified waters of the summer season. These results contradict the classic diatom / dinoflagellate succession theory and suggest that event-scale processes influencing water column stability within seasons may influence the distribution of HAB species in near shore upwelling dominated regions.
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The Civil War Letters of James and Leander HutchinsonWilliamson, Robert F. January 1951 (has links)
No description available.
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An analysis of style-types in musical improvisation using clustering methodsEllis, Blair K. 11 1900 (has links)
Research on creativity examines both the processes and products of creativity. An important avenue for analyzing creativity is by means of spontaneous improvisation, although there are major challenges to characterizing the output of improvisation due to the variable nature of the products. In the case of musical improvisation, structural approaches have used methodologies like musical transcription to look for recurring or variable musical features across a corpus of improvisations, while creativity-centered approaches have had experts make ratings of the novelty of the improvisations. One important concept missing from many analyses of improvisation is the idea that the products of a corpus can be organized into a series of “style types”, where each type differs from others in certain key structural features. Clustering methods provide a reliable quantitative means of examining the organization of style types within a diverse corpus of improvisations. In order to look at the potential of such methods, we examined a corpus of 72 vocal melodic improvisations produced by novice improvisers. We first classified the melodies acoustically using a multidimensional musical-classification scheme called CantoCore, which coded the melodies for 19 distinct features of musical structure. We next employed the simultaneous use of multiple correspondence analysis (MCA) and k-means cluster analysis with the data, and obtained three relatively discrete clusters of improvisations. Stylistic analysis of these clusters revealed that they differed in key features related to phrase structure and rhythm. Cluster analyses provide a promising means of describing and analyzing the products of creativity, including variable structures like spontaneous improvisations. / Thesis / Master of Science (MSc)
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[pt] AMIZADE E AUTOMODELAGEM NA CORRESPONDÊNCIA ENTRE LEOPOLDINA E MARIA LUÍSA DE HABSBURGO, 1810 A 1818 / [en] FRIENDSHIP AND SELF-FASHIONING IN LEOPOLDINA AND MARIA LUÍSA DE HABSBURGO S CORRESPONDENCEANA CAROLINA DE MONTMORENCY PESTANA VARIZO 23 November 2023 (has links)
[pt] O presente trabalho tem como objetivo compreender o processo de construção
subjetiva da primeira Imperatriz do Brasil, Leopoldina de Habsburgo, entre os anos
de 1810 e 1818, período este que contempla seus últimos anos na Corte Austríaca
até a sua ascensão como princesa do Brasil. Para tanto, são analisadas as cartas de
Leopoldina dirigidas à sua irmã mais velha, Maria Luísa de Habsburgo,
mobilizando as categorias de self-fashioning (automodelagem), de Stephen
Greenblatt, e amizade epistolar, de Anne Vicent-Buffault. Argumenta-se que a
relação de amizade a distância, via correspondência, com Maria Luísa teve um
papel decisivo na automodelagem de Leopoldina, dando-lhe condições de enfrentar
as questões e desafios relacionados à sua condição melancólica e à assunção de seu
papel público. / [en] The present work aims to understand the process of subjective construction of the first Empress of Brazil, Leopoldina de Habsburg, between the years 1810 and 1818, a period that includes her last years at the Austrian Court until her ascension as princess of Brazil. To this end, Leopoldina s letters addressed to her older sister, Maria Luísa de Habsburgo, are analyzed, mobilizing the categories of self-fashioning, by Stephen Greenblatt, and epistolary friendship, by Anne Vicent-Buffault. It is argued that the relationship of long-distance friendship, via correspondence, with Maria Luísa played a decisive role in Leopoldina s self-modeling, giving her the conditions to face the questions and challenges related to her melancholic condition and the assumption of her public role.
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