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Dissertations / Theses on the topic 'Factor classification'

Author: Grafiati

Published: 7 June 2025

Last updated: 17 July 2025

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1

GOYAL, DEVENDRA. "EVALUATING WORK-FACTOR CLASSIFICATION SYSTEM." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin990816550.

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2

Andersson, Simon. "Trust as a factor in the information classification process." Thesis, Luleå tekniska universitet, Institutionen för system- och rymdteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-85775.

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Risk management is an important part of every business. In order to properly conduct it, risk assessment and within it, information classification is needed. The information classification produces a list of information assets and states how they are valued within the organization. That is then used as an important part of the risk assessment process. In order to conduct such a valuation, users are consulted as they often times understand the value of information. However, using the CIA-Triad when communicating has proved to be difficult for users not knowledgeable in information security. Tru

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3

Funai, Tomohiko. "Extensions of Nearest Shrunken Centroid Method for Classification." BYU ScholarsArchive, 2010. https://scholarsarchive.byu.edu/etd/2402.

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Stylometry assumes that the essence of the individual style of an author can be captured using a number of quantitative criteria, such as the relative frequencies of noncontextual words (e.g., or, the, and, etc.). Several statistical methodologies have been developed for authorship analysis. Jockers et al. (2009) utilize Nearest Shrunken Centroid (NSC) classification, a promising classification methodology in DNA microarray analysis for authorship analysis of the Book of Mormon. Schaalje et al. (2010) develop an extended NSC classification to remedy the problem of a missing author. Dabney (200

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4

Key, Barbara A. "Five Whys Root Cause System Effectiveness: A Two Factor Quantitative Review." TopSCHOLAR®, 2019. https://digitalcommons.wku.edu/theses/3098.

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Several tools exist for root cause analysis (RCA). Despite this however, many practitioners are not obtaining the quality improvement desired. Those turning to literature for guidance would find most of the information resides in case studies with anecdotal outcomes. Since 5 Whys analysis has been one of the more pervasive tools in use, this study sought to add to the root cause analysis body of knowledge by investigating tool support factors. While studied in conjunction with 5 Whys, the support variables lend themselves to other root cause analysis tools as well. The purpose of the study was

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5

Tricot, Michel. "A propos de quelques applications de la classification automatique." Université Joseph Fourier (Grenoble ; 1971-2015), 1986. http://www.theses.fr/1986GRE10077.

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Ce travail montre trois exemples d'applications originales de la Classification automatique. Un, concerne la gestion de systèmes informatiques, un autre, les micro-circuits, le dernier, les essais thérapeutiques. Une description complète est donnée des algorithmes «pseudo-hiérarchique» utilisée, que nous avons appelés «Algorithmes de percolation généralisés». Finalement, une étude critique de la validité des résultats est proposée

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6

Kordogly, Rima. "The classification patterns of bank financial ratios." Thesis, Loughborough University, 2010. https://dspace.lboro.ac.uk/2134/6815.

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Financial ratios are key units of analysis in most quantitative financial research including bankruptcy prediction, performance and efficiency analysis, mergers and acquisitions, and credit ratings, amongst others. Since hundreds of ratios can be computed using available financial data and given the substantial overlap in information provided by many of these ratios, choosing amongst ratios has been a significant issue facing practitioners and researchers. An important contribution of the present thesis is to show that ratios can be arranged into groups where each group describes a separate fi

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Gross, Brandi Nicole. "Input of Factor Graphs into the Detection, Classification, and Localization Chain and Continuous Active SONAR in Undersea Vehicles." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/56609.

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The focus of this thesis is to implement factor graphs into the problem of detection, classification, and localization (DCL) of underwater objects using active SOund Navigation And Ranging (SONAR). A factor graph is a bipartite graphical representation of the decomposition of a particular function. Messages are passed along the edges connecting factor and variable nodes, on which, a message passing algorithm is applied to compute the posterior probabilities at a particular node. This thesis addresses two issues. In the first section, the formulation of factor graphs for each section of the

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8

Arabanian, Laleh Sadat. "Role of NFAT (Nuclear Factor of Activated T Cells) Transcription Factors in Hematopoiesis." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-99739.

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Understanding the transcriptional mechanisms that control hematopoiesis and the interaction between hematopoietic stem cells and the bone marrow (BM) microenvironment in vivo is of considerable interest. The calcineurin-dependent transcription factor NFAT (Nuclear Factor of Activated T cells) is known as master regulator of cytokine production in T lymphocytes and therefore central for T cell-dependent immune reactions, but has also been shown to regulate a process of differentiation and tissue adaptation in various cell types. The activation of NFAT is dependent on the calcium level within th

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9

Schnell, Sondre Kvalvåg, Thijs J. H. Vlugt, Jean-Marc Simon, Signe Kjelstrup, and Dick Bedeaux. "Direct calculation of the thermodynamic correction factor, gamma, from molecular dynamics simulations." Diffusion fundamentals 16 (2011) 72, S. 1-2, 2011. https://ul.qucosa.de/id/qucosa%3A13814.

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10

Zhang, Ye. "On The Importance of Light Source Classification in Indoor Light Energy Harvesting." Thesis, Mittuniversitetet, Avdelningen för elektronikkonstruktion, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-34414.

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Indoor light energy harvesting plays an important role in field of renewable energy. Indoor lighting condition is usually described by level of illumination. However, measured data alone does not by classification of different light sources, result is not representative. Energy harvesting system needs to be evaluated after classification to obtain more accurate value. This is also importance of different light source classification. In this thesis, a complete set of indoor light energy harvesting system is introduced, two models are proposed to evaluate energy, robustness is improved by mixing

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11

Kunina-Habenicht, Olga. "Theoretical and practical considerations for implementing diagnostic classification models." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2010. http://dx.doi.org/10.18452/16179.

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Kognitive Diagnosemodelle (DCMs) sind konfirmatorische probabilistische Modelle mit kategorialen latenten Variablen, die Mehrfachladungsstrukturen erlauben. Sie ermöglichen die Abbildung der Kompetenzen in mehrdimensionalen Profilen, die zur Erstellung informativer Rückmeldungen dienen können. Diese Dissertation untersucht in zwei Anwendungsstudien und einer Simulationsstudie wichtige methodische Aspekte bei der Schätzung der DCMs. In der Arbeit wurde ein neuer Mathematiktest entwickelt basierend auf theoriegeleiteten vorab definierten Q-Matrizen. In den Anwendungsstudien (a) illustrierten wir

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12

Saraci, Erisa, Robert Arndt, Jens Kullmann, et al. "Diffusion limitations and effectiveness factor of mesoporous and hierarchically structured catalysts for SCR-DeNOx." Diffusion fundamentals 24 (2015) 44, S. 1, 2015. https://ul.qucosa.de/id/qucosa%3A14564.

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13

Mathieu, Bérangère. "Segmentation interactive multiclasse d'images par classification de superpixels et optimisation dans un graphe de facteurs." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30290/document.

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La segmentation est l'un des principaux thèmes du domaine de l'analyse d'images. Segmenter une image consiste à trouver une partition constituée de régions, c'est-à-dire d'ensembles de pixels connexes homogènes selon un critère choisi. L'objectif de la segmentation consiste à obtenir des régions correspondant aux objets ou aux parties des objets qui sont présents dans l'image et dont la nature dépend de l'application visée. Même s'il peut être très fastidieux, un tel découpage de l'image peut être facilement obtenu par un être humain. Il n'en est pas de même quand il s'agit de créer un program

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Jones, Brian Lindley. "A Psychometric Analysis of the Precalculus Concept Assessment." BYU ScholarsArchive, 2021. https://scholarsarchive.byu.edu/etd/8918.

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The purpose of this study was to examine the psychometric properties of the Precalculus Concept Assessment (PCA), a 25-item multiple-choice instrument designed to assess student reasoning abilities and understanding of foundational calculus concepts (Carlson et al., 2010). When this study was conducted, the extant research on the PCA and the PCA Taxonomy lacked in-depth investigations of the instruments' psychometric properties. Most notably was the lack of studies into the validity of the internal structure of PCA response data implied by the PCA Taxonomy. This study specifically investigated

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Patel, Jiten. "Enhanced classification approach with semi-supervised learning for reliability-based system design." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44872.

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Traditionally design engineers have used the Factor of Safety method for ensuring that designs do not fail in the field. Access to advanced computational tools and resources have made this process obsolete and new methods to introduce higher levels of reliability in an engineering systems are currently being investigated. However, even though high computational resources are available the computational resources required by reliability analysis procedures leave much to be desired. Furthermore, the regression based surrogate modeling techniques fail when there is discontinuity in the design spa

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16

Fawagreh, Khaled. "On pruning and feature engineering in Random Forests." Thesis, Robert Gordon University, 2016. http://hdl.handle.net/10059/2113.

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Random Forest (RF) is an ensemble classification technique that was developed by Leo Breiman over a decade ago. Compared with other ensemble techniques, it has proved its accuracy and superiority. Many researchers, however, believe that there is still room for optimizing RF further by enhancing and improving its performance accuracy. This explains why there have been many extensions of RF where each extension employed a variety of techniques and strategies to improve certain aspect(s) of RF. The main focus of this dissertation is to develop new extensions of RF using new optimization technique

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17

Ammoura, Adnan. "Geometrie analagmatique et triangulation de delaunay : contribution de l'analyse des donnees aux etudes marketing sur les medicaments." Paris 6, 1988. http://www.theses.fr/1988PA066022.

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Dans la partie theorique, nous presentons la contribution de la triangulation de delaunay a la classification ascendante hierarchique; nous montrons ici l'unicite de la decomposition de delaunay dans le cas generique ou les facettes de l'enveloppe convexe de l'ensemble a classer sont toutes des simplexes. Grace a cette recherche theorique, nous ponvons dire que la methode de triangulation de delaunay est a la base de l'algorithme accelere de la cah. Dans la partie appliquee, on presente la contribution de l'analyse des donnees aux etudes marketing sur les medicaments en appliquant l'afc sur le

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18

Rouvier, Mickaël. "Structuration de contenus audio-visuel pour le résumé automatique." Thesis, Avignon, 2011. http://www.theses.fr/2011AVIG0192/document.

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Ces dernières années, avec l’apparition des sites tels que Youtube, Dailymotion ou encore Blip TV, le nombre de vidéos disponibles sur Internet aconsidérablement augmenté. Le volume des collections et leur absence de structure limite l’accès par le contenu à ces données. Le résumé automatique est un moyen de produire des synthèses qui extraient l’essentiel des contenus et les présentent de façon aussi concise que possible. Dans ce travail, nous nous intéressons aux méthodes de résumé vidéo par extraction, basées sur l’analyse du canal audio. Nous traitons les différents verrous scientifiques l

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19

Avery, Meredith Ryan. "Multivariate Analysis of Volcanic Particle Morphology: Methodology and Application of a Quantitative System of Fragmentation Mechanism Classification." Bowling Green State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1428939377.

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20

Friedrich, Nele, Harald Jörn Schneider, Marcus Dörr, et al. "All-cause mortality and serum insulin-like growth factor I in primary care patients." Technische Universität Dresden, 2011. https://tud.qucosa.de/id/qucosa%3A26868.

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Objective: Previous population-based studies provided conflicting results regarding the association of total serum insulin-like growth factor I (IGF-I) and mortality. The aim of the present study was to assess the relation of IGF-I levels with all-cause mortality in a prospective study. Design: DETECT (Diabetes Cardiovascular Risk-Evaluation: Targets and Essential Data for Commitment of Treatment) is a large, multistage, and nationally representative study of primary care patients in Germany. The study population included 2463 men and 3603 women. Death rates were recorded by the respective pr

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21

Nakao, Kyoko. "Frequency and risk factors of thoracic metastases and optimization of the use of cross-sectional chest imaging in follow-up patients with cervical cancer." Kyoto University, 2019. http://hdl.handle.net/2433/242361.

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22

Everling, Nils. "Extending the explanatory power of factor pricing models using topic modeling." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210253.

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Factor models attribute stock returns to a linear combination of factors. A model with great explanatory power (R2) can be used to estimate the systematic risk of an investment. One of the most important factors is the industry which the company of the stock operates in. In commercial risk models this factor is often determined with a manually constructed stock classification scheme such as GICS. We present Natural Language Industry Scheme (NLIS), an automatic and multivalued classification scheme based on topic modeling. The topic modeling is performed on transcripts of company earnings calls

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23

Paffumi, Elena, Gennaro Michele De, and Giorgio Martini. "Alternative utility factor versus the SAE J2841 standard method for PHEV and BEV applications." Elsevier, 2018. https://publish.fid-move.qucosa.de/id/qucosa%3A73240.

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This article explores the potential of using real-world driving patterns to derive PHEV and BEV utility factors and evaluates how different travel and recharging behaviours affect the calculation of the standard SAE J2841 utility factor. The study relies on six datasets of driving data collected monitoring 508,607 conventional fuel vehicles in six European areas and a dataset of synthetic data from 700,000 vehicles in a seventh European area. Sources representing the actual driving behaviour of PHEV together with the WLTP European utility factor are adopted as term of comparison. The results s

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Wurst, Ulrike. "Die Regulation von Preadipocyte factor-1 bei Gestationsdiabetes mellitus und Präeklampsie." Doctoral thesis, Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-216381.

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Adipositas und die damit verbundenen Begleiterkrankungen zeigen einen deutlichen Anstieg der Prävalenz in der Bevölkerung. Auch für die Schwangerschaft gilt starkes Übergewicht als Risikofaktor für metabolische und vaskuläre Komplikationen wie Gestationsdiabetes mellitus (GDM) und Präeklampsie (PE). In den letzten 20 Jahren wurde eindrücklich nachgewiesen, dass eine Dysregulation von Fettzell-sezernierten Proteinen, sogenannten Adipokinen, ursächlich zu GDM und PE beitragen könnte. Zu Beginn der Dissertation lagen jedoch nur unzureichende Daten über die Regulation des Insulinresistenz-induzier

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25

Häntzschel, Janet. "Untersuchungen zur Landoberflächenrückkopplung der Atmosphäre und ihrer Auswirkung auf den Wasserhaushalt." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2005. http://nbn-resolving.de/urn:nbn:de:swb:14-1134722228059-54242.

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Die vorliegende Arbeit hat zum Ziel, den Einfluss der Rückkopplung zwischen Landoberfläche und Atmosphäre auf den regionalen Wasserhaushalt abzuschätzen. Dazu erfolgen Modellsimulationen mit dem gekoppelten Vegetations-Grenzschichtmodell HIRVAC (HIgh Resolution Vegetation Atmosphere Coupler) für das Einzugsgebiet Sperrgraben (Bayerische Alpen). Im Ergebnis wird der Zusammenhang zwischen dem Entkopplungsfaktor Omega und der Verdunstung als Wasserhaushaltsgröße für einen festgelegten Zeitraum untersucht. Die Kombination eines vertikal hochaufgelösten Grenzschichtmodells (HUB) mit einem mechanist

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Gloor, Yvonne. "The Arf GTPase exchange factor Sec7p interaction network:: unraveling the crosstalk between key regulators of Golgi transport." Doctoral thesis, Technische Universität Dresden, 2007. https://tud.qucosa.de/id/qucosa%3A23740.

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The Golgi apparatus is the main crossroad of the intracellular trafficking network in all eukaryotic cells and plays a crucial role in the distribution of cellular material. To ensure the proper sorting and delivery of cargo proteins to their destination while maintaining Golgi homeostasis the coordination of all transport events to and from this organelle is required. Although a cascade of activation events has already been reported for Golgi Ypt/Rab proteins that function in the exocytic pathway, their connection to incoming vesicles from endosomal compartments or to the different Arf mediat

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Hellmuth, Marc. "Local Prime Factor Decomposition of Approximate Strong Product Graphs." Doctoral thesis, Universitätsbibliothek Leipzig, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-38755.

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In practice, graphs often occur as perturbed product structures, so-called approximate graph products. The practical application of the well-known prime factorization algorithms is therefore limited, since most graphs are prime, although they can have a product-like structure. This work is concerned with the strong graph product. Since strong product graphs G contain subgraphs that are itself products of subgraphs of the underlying factors of G, we follow the idea to develop local approaches that cover a graph by factorizable patches and then use this information to derive the global factors.

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Jung, Michael, and Todor D. Todorov. "On the Convergence Factor in Multilevel Methods for Solving 3D Elasticity Problems." Universitätsbibliothek Chemnitz, 2006. http://nbn-resolving.de/urn:nbn:de:swb:ch1-200601510.

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The constant gamma in the strengthened Cauchy-Bunyakowskii-Schwarz inequality is a basic tool for constructing of two-level and multilevel preconditioning matrices. Therefore many authors consider estimates or computations of this quantity. In this paper the bilinear form arising from 3D linear elasticity problems is considered on a polyhedron. The cosine of the abstract angle between multilevel finite element subspaces is computed by a spectral analysis of a general eigenvalue problem. Octasection and bisection approaches are used for refining the triangulations. Tetrahedron, pentahedron and

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Langer, Björn. "Phenotype-related regulatory element and transcription factor identification via phylogeny-aware discriminative sequence motif scoring." Doctoral thesis, Center for Systems Biology Dresden, 2017. https://tud.qucosa.de/id/qucosa%3A31172.

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Understanding the connection between an organism’s genotype and its phenotype is a key question in evolutionary biology and genetics. It has been shown that many changes of morphological or other complex phenotypic traits result from changes in the expression pattern of key developmental genes rather than from changes in the genes itself. Such altered gene expression arises often from changes in the gene regulatory regions. That usually means the loss of important transcription factor (TF) binding sites within these regulatory regions, because the interaction between TFs and specific sites on

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30

Arbache, Chafik. "Méthodes statistiques et informatiques d'aides à la décision alternative à la régression et à la discrimination." Paris 6, 1986. http://www.theses.fr/1986PA066008.

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Présentation mathématique des méthodes d'analyse des données. Schéma des traitements et analyses globales des dossiers. Appréciation des demandes de crédit à court terme, à moyen terme et à long terme. Evaluation du prix des biens durables d'une espèce donnée.

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Kolanczyk, Maria Elzbieta. "Signaling mechanisms and developmental function of fibroblast growth factor receptors in zebrafish." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-ds-1242722157657-12154.

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Fibroblast growth factor (Fgf) signaling plays multiple inductive roles during development of vertebrates (Itoh 2007). Some Fgfs, such as Fgf8, are locally secreted and signal over a long range to provide positional information in the target tissue (Scholpp and Brand 2004). Fgf ligands signal in a receptor-dependent manner via tyrosine kinase receptors, four of which have been so far identified. Fgf8 signaling was shown to depend both on receptor activation as well as endocytosis. The specificity of Fgf ligands and receptors as well as the function of receptors in the control of the Fgf signal

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Wittchen, Hans-Ulrich, Katja Beesdo, Antje Bittner, and Renee D. Goodwin. "Depressive episodes - evidence for a causal role of primary anxiety disorders?" Technische Universität Dresden, 2003. https://tud.qucosa.de/id/qucosa%3A26812.

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Anxiety and depressive disorders are common mental disorders in general population, imposing tremendous burden on both affected persons and society. Moreover, comorbidity between anxiety and depressive conditions is high, leading to substantial disability and functional impairment. Findings consistently suggest that anxiety disorders are primary to depression in the majority of comorbid cases. Yet, the question of whether anxiety disorders are risk factors for depression, and potentially even causal risk factors for the first onset of depression, remains unresolved. Recent results have shown t

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Parker, Walter P. "Proposed New Military Live Load for Highway Bridges in the United States." ScholarWorks@UNO, 2019. https://scholarworks.uno.edu/td/2631.

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This thesis presents the results of a mathematical analysis of various live load combinations on highway bridge spans up to 304.8 meters (1,000 feet) total lengths. The analysis included continuous beams, but only the results for simple beams is presented. The analysis was performed using an independently developed Microsoft EXCEL spreadsheet computation, based on superposition and classical mechanics. In this thesis, several actual bridge live loadings and several hypothetical live loadings were analyzed and compared to the American Association of State Highway and Transportation Officials Lo

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Litvin, Justin M. "Development of a Self-Report Measure of Post-Traumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) According to the Eleventh Edition of the International Classification of Diseases (ICD-11): The Complex Trauma Inventory." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc862735/.

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The work group editing trauma disorders for the upcoming edition of the International Classification of Diseases (ICD-11) made several changes. Specifically, they significantly simplified the guidelines for post-traumatic stress disorder (PTSD) and added a new trauma disorder called complex PTSD (CPTSD). The new domains for PTSD and the addition of CPTSD require new instruments to assess these novel constructs. We developed a measure of PTSD and CPTSD (Complex Trauma Inventory; CTI) according to the proposed ICD-11 domains, creating several items to assess each domain. We examined the factor s

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Baur, Dorothee M., Jens Klotsche, Ole-Petter R. Hamnvik, et al. "Type 2 diabetes mellitus and medications for type 2 diabetes mellitus are associated with risk for and mortality from cancer in a German primary care cohort." Technische Universität Dresden, 2011. https://tud.qucosa.de/id/qucosa%3A26862.

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There is growing evidence that patients with type 2 diabetes mellitus have increased cancer risk. We examined the association between diabetes, cancer, and cancer-related mortality and hypothesized that insulin sensitizers lower cancer-related mortality. Participants in the Diabetes Cardiovascular Risk and Evaluation: Targets and Essential Data for Commitment of Treatment study, a nationwide cross-sectional and prospective epidemiological study, were recruited from German primary care practices. In the cross-sectional study, subjects with type 2 diabetes mellitus had a higher prevalence of mal

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Ngo, Xuan Quang, Ngoc Chau Nguyen, Dinh Tu Nguyen, Van Lam Pham, and Ann Vanreusel. "Distribution pattern of free living nematode communities in the eight Mekong estuaries by seasonal factor." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-126834.

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The temporal variation of nematode communities in eight mouth stations of the Mekong River system was investigated in order to compare the change between the dry and the wet season. The nematode data was analysed by multivariate techniques such as SIMPROF, MDS, ANOSIM and SIMPER in the software PRIMER v.6 – PERMANOVA. Our results showed that average dissimi-larity between seasons of the nematode communities in each station was high. Seasonal factor did not affect strongly their distribution pattern. Dominant genera Desmodora and Oncholaimellus usually occurred in the sand stations and Parodont

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Schirm, Sibylle, Christoph Engel, Markus Löffler, and Markus Scholz. "A combined model of human erythropoiesis and granulopoiesis under growth factor and chemotherapy treatment." Universitätsbibliothek Leipzig, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-144877.

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Background: Haematotoxicity of conventional chemotherapies often results in delays of treatment or reduction of chemotherapy dose. To ameliorate these side-effects, patients are routinely treated with blood transfusions or haematopoietic growth factors such as erythropoietin (EPO) or granulocyte colony-stimulating factor (G-CSF). For the latter ones, pharmaceutical derivatives are available, which differ in absorption kinetics, pharmacokinetic and -dynamic properties. Due to the complex interaction of cytotoxic effects of chemotherapy and the stimulating effects of different growth factor deri

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Bouallegue, Mohamed. "L’analyse factorielle pour la modélisation acoustique des systèmes de reconnaissance de la parole." Thesis, Avignon, 2013. http://www.theses.fr/2013AVIG0197/document.

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Dans cette thèse, nous proposons d’utiliser des techniques fondées sur l’analyse factorielle pour la modélisation acoustique pour le traitement automatique de la parole, notamment pour la Reconnaissance Automatique de la parole. Nous nous sommes, dans un premier temps, intéressés à la réduction de l’empreinte mémoire des modèles acoustiques. Notre méthode à base d’analyse factorielle a démontré une capacité de mutualisation des paramètres des modèles acoustiques, tout en maintenant des performances similaires à celles des modèles de base. La modélisation proposée nous conduit à décomposer l’en

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Anders, Michael. "S-factor measurement of the 2H(α,γ)6Li reaction at energies relevant for Big-Bang nucleosynthesis". Helmholtz-Zentrum Dresden-Rossendorf, 2013. https://hzdr.qucosa.de/id/qucosa%3A22184.

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For about 20 years now, observations of 6Li in several old metal-poor stars inside the halo of our galaxy have been reported, which are largely independent of the stars’ metallicity, and which point to a possible primordial origin. The observations exceed the predictions of the Standard Big-Bang Nucleosynthesis model by a factor of 500. In the relevant energy range, no directly measured S-factors were available yet for the main production reaction 2H(α,γ)6Li, while different theoretical estimations have an uncertainty of up to two orders of magnitude. The very small cross section in the picoba

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Bornelöv, Susanne. "Rule-based Models of Transcriptional Regulation and Complex Diseases : Applications and Development." Doctoral thesis, Uppsala universitet, Beräknings- och systembiologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-230159.

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As we gain increased understanding of genetic disorders and gene regulation more focus has turned towards complex interactions. Combinations of genes or gene and environmental factors have been suggested to explain the missing heritability behind complex diseases. Furthermore, gene activation and splicing seem to be governed by a complex machinery of histone modification (HM), transcription factor (TF), and DNA sequence signals. This thesis aimed to apply and develop multivariate machine learning methods for use on such biological problems. Monte Carlo feature selection was combined with rule-

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Zimmermann, Petra, Hans-Ulrich Wittchen, Florian Waszak, Agnes Nocon, Michael Höfler, and Roselind Lieb. "Pathways into ecstasy use: The role of prior cannabis use and ecstasy availability." Technische Universität Dresden, 2005. https://tud.qucosa.de/id/qucosa%3A26818.

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Aim: To explore the role of cannabis use for the availability of ecstasy as a potential pathway to subsequent first ecstasy use. Methods: Baseline and 4-year follow-up data from a prospective-longitudinal community study of originally 3021 adolescents and young adults aged 14–24 years at baseline were assessed using the standardized M-CIDI and DSM-IV criteria. Results: Baseline cannabis users reported at follow-up more frequent access to ecstasy than cannabis non-users. Higher cannabis use frequencies were associated with increased ecstasy availability reports. Logistic regression analyses

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Goebes, Philipp, Karsten Schmidt, Felix Stumpf, et al. "Rule-based analysis of throughfall kinetic energy to evaluate biotic and abiotic factor thresholds to mitigate erosive power." Sage, 2016. https://tud.qucosa.de/id/qucosa%3A35382.

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Below vegetation, throughfall kinetic energy (TKE) is an important factor to express the potential of rainfall to detach soil particles and thus for predicting soil erosion rates. TKE is affected by many biotic (e.g. tree height, leaf area index) and abiotic (e.g. throughfall amount) factors because of changes in rain drop size and velocity. However, studies modelling TKE with a high number of those factors are lacking. This study presents a new approach to model TKE. We used 20 biotic and abiotic factors to evaluate thresholds of those factors that can mitigate TKE and thus decrease soil eros

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Reimann, Manja, Gunnar Folprecht, Rocco Haase, et al. "Anti-Vascular endothelial growth factor therapy impairs endothelial function of retinal microcirculation in colon cancer patients – an observational study." BioMed Central, 2013. https://tud.qucosa.de/id/qucosa%3A27283.

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Background: To assess acute effects of bevacizumab (anti-VEGF therapy) on cerebral microvessels and systemic cardiovascular regulation. Design and subjects: 20 consecutive patients with colorectal cancer (median age: 60.4 years, range 45.5-73.9 years) received bevacizumab intravenously (5 mg/kg) uncoupled of chemotherapy. Prior to and within the first 24 hours after bevacizumab infusion, patients were investigated for retinal endothelial function. A series of a triple 24-hour ambulatory blood pressure measurement was conducted. Retinal endothelial function was determined as flicker light-indu

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Laloni, Mariana Tosello. "Predição do risco individual de metástase linfática e hematogênica em função da intensidade da linfangiogênese no tumor carcinóide típico broncopulmonar." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/5/5156/tde-14102008-154346/.

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Os tumores carcinóides típicos broncopulmonares são proliferações de células neuroendócrinas. Foram consideradas como adenomas e acreditava-se que não tinham potencial para disseminação hematogênica e linfática. Porém, a ocorrência de metástase linfática e hematogênica acontece em um quinto dos indivíduos acometidos por essa patologia. A variação no comportamento clínico dos carcinóides broncopulmonares torna imperativa a realização de pesquisas que visem à melhor compreensão dessa doença. É fundamental determinar a agressividade e o risco individual da ocorrência de metástase linfática e hema

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Schneider, Harald Jörn, Bernhard Saller, Jens Klotsche, et al. "Opposite associations of age-dependent insulin-like growth factor-I standard deviation scores with nutritional state in normal weight and obese subjects." BioScientifica, 2006. https://tud.qucosa.de/id/qucosa%3A26325.

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Objective: Insulin-like growth factor-I (IGF-I) has been suggested to be a prognostic marker for the development of cancer and, more recently, cardiovascular disease. These diseases are closely linked to obesity, but reports of the association of IGF-I with measures of obesity are divergent. In this study, we assessed the association of age-dependent IGF-I standard deviation scores with body mass index (BMI) and intra-abdominal fat accumulation in a large population. Design: A cross-sectional, epidemiological study. Methods: IGF-I levels were measured with an automated chemiluminescence assa

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Шкуропат, Л. В. "Інтелектуальна система технічного зору безпілотних літальних апаратів". Master's thesis, Сумський державний університет, 2019. http://essuir.sumdu.edu.ua/handle/123456789/76523.

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Розроблено та програмно реалізовано інформаційно-екстремальний алгоритм функціонування системи інтелектуального аналізу даних в режимі факторного класифікаційного аналізу. Розроблений алгоритм реалізовано у програмному забезпеченні, створеному за допомогою мови програмування PHP.

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Friedrich, Nele, Harald J. Schneider, Robin Haring, et al. "Improved prediction of all-cause mortality by a combination of serum total testosterone and insulin-like growth factor I in adult men." Technische Universität Dresden, 2012. https://tud.qucosa.de/id/qucosa%3A27096.

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Objective: Lower levels of anabolic hormones in older age are well documented. Several studies suggested that low insulin-like growth factor I (IGF-I) or testosterone levels were related to increased mortality. The aim of the present study was to investigate the combined influence of low IGF-I and low testosterone on all-cause mortality in men. Methods and results: From two German prospective cohort studies, the DETECT study and SHIP, 3942 men were available for analyses. During 21,838 person-years of follow-up, 8.4% (n = 330) of men died. Cox model analyses with age as timescale and adjusted

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Ebert, Thomas. "Untersuchungen zu Angiopoietin-related Growth Factor bei Präeklampsie, chronischer Dialysepflicht und Diabetes mellitus Typ 2." Doctoral thesis, Universitätsbibliothek Leipzig, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-63709.

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Adipositas ist besonders in den Industrienationen ein zunehmendes gesellschaftliches und ökonomisches Problem. Dabei sind vor allem die kardiovaskulären und metabolischen Begleiterkrankungen von entscheidender Bedeutung. In den letzten Jahren konnte gezeigt werden, dass verschiedene Adipozyten- und Hepatozyten-sezernierte Proteine Mediatoren von Insulinresistenz und Dyslipidämie darstellen. Kürzlich wurde Angiopoietin-related growth factor (AGF) als ein neues, von der Leber produziertes Protein, das potentiell Insulinresistenz und Adipositas antagonisiert, vorgestellt. Im Mausmodell waren AGF-

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Berk, Benjamin-Andreas. "Brain-derived neurotrophic factor-induzierte neuroprotektive Osmoregulation der Müller-Gliazelle der Rattenretina." Doctoral thesis, Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-170385.

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Einleitung: Die Ausbildung eines Netzhautödems ist eine Hauptursache für die Verschlechterung des Sehvermögens bei ischämisch-hypoxischen und inflammatorischen Netzhauterkrankungen. Neben der erhöhten Permeabilität der Blut-Retina-Schranke trägt eine Wasserakkumulation in Netzhautzellen zur Ausbildung eines Netzhautödems bei. Müllerzellen regulieren die retinale Ionen- und Osmohomöostase, indem sie einen transzellulären Ionen- und Wassertransport vermitteln. Zudem kontrollieren Müllerzellen die Größe des Extrazellularraumes, indem sie bei neuronaler Aktivität eine Zellkörperschwellung – ausgel

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Fu, L. J., H. P. Zhang, Y. P. Wu, H. Q. Wu, and R. Holze. "Surface Active Sites: An Important Factor Affecting the Sensitivity of Carbon Anode Material towards Humidity." Universitätsbibliothek Chemnitz, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-200900606.

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In this paper, we report that various kinds of active sites on graphite surface including active hydrophilic sites markedly affect the electrochemical performance of graphite anodes for lithium ion batteries under different humidity conditions. After depositing metals such as Ag and Cu by immersing and heat-treating, these active sites on the graphite surface were removed or covered and its electrochemical performance under the high humidity conditions was markedly improved. This suggests that lithium ion batteries can be assembled under less strict conditions and that it provides a valuable d

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