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Koksharov, Andrey [Verfasser], and U. [Akademischer Betreuer] Maas. "Detailed mathematical modelling of transient combustion processes / Andrey Koksharov ; Betreuer: U. Maas." Karlsruhe : KIT-Bibliothek, 2019. http://d-nb.info/1181190649/34.
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Blackburn, Terrence (Terrence Joseph). "Integrating high-precision U-Pb geochronologic data with dynamic models of earth processes." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/78366.
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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2012.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student-submitted PDF version of thesis.
Includes bibliographical references.
Radioisotopic dating can provide critical constraints for understanding the rates of tectonic, dynamic and biologic processes operating on our planet. Improving the interpretation and implementation of geochronologic data by coupling it with numerical modeling studies is the central theme of this thesis. Each chapter works to address a variety of problems in the Earth sciences. In each study, the interpretation of geochronologic data is aided with a numerical model that simulates the long-term behavior and/or initial conditions of the U-Pb system and provides an effective means of exploring the parameters that influence a calculated date. The record provided by geochronologic data is then coupled with models to quantitatively determine rates of geologic process on Earth. This approach permits geochronologic data to move beyond just establishing a relative time line of events. Using this dual modeling approach, Chapters 2-5 work to measure the long-term cooling and erosion rate of the lithosphere, specifically constraining the time scales and rate of transition between the stages of mountain belt formation and stability. Chapter six works to constrain the timing and duration of Central Atlantic Magmatic Province flood basalt volcanism and its relationship to the end Triassic mass extinction. The seventh and final chapter uses high precision U-Pb geochronology to evaluate the reliability of an Ar-Ar standard often used as a fluence monitor. The overall focus of this thesis has been to push the envelope of geochronologic precision and accuracy while coupling the data with modeling studies to yield new insight into Earth systems.
by Terrence Blackburn.
Ph.D.
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Schmidberger, Anke [Verfasser], and U. [Akademischer Betreuer] Obst. "Molecular Characterisation of Cultivation Processes - Stress-induced Rhamnolipid Production / Anke Schmidberger. Betreuer: U. Obst." Karlsruhe : KIT-Bibliothek, 2014. http://d-nb.info/1063027489/34.
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Kachanovich, Aliaksei [Verfasser], and U. [Akademischer Betreuer] Nierste. "Flavour-changing neutral current processes beyond the Standard Model / Aliaksei Kachanovich ; Betreuer: U. Nierste." Karlsruhe : KIT-Bibliothek, 2021. http://d-nb.info/123047577X/34.
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Simons, Suzanne Lee. "U-Th-Pb systematics of opaline silica: Implications for the dating of surface processes." Thesis, Curtin University, 2015. http://hdl.handle.net/20.500.11937/36.
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U–Pb and U-series analyses of U-rich, relative to both Th and Pb, opal samples using sensitive high-resolution ion microprobe (SHRIMP) demonstrate the ability of this technique for dating opals with ages ranging from several tens of thousands of years to millions of years and from a variety of deposition environments. This experimental study increases the understanding of opal as a geochronometer and explores the stability of U-Th-Pb systematics in opaline silica.
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Soukarieh, Inass. "Theoretical contribution to the U-processes in Markov and dependent setting : asymptotic and bootstraps." Thesis, Compiègne, 2022. http://www.theses.fr/2022COMP2709.
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Le monde produit 2,5 quintillions d’octets par jour, appelés mégadonnées. Le volume, la valeur, la variété, la vélocité et la véracité définissent les cinq caractéristiques du Big Data qui représentent une complexité fondamentale pour de nombreux algorithmes d’apprentissage automatique, tels que le clustering, la reconnaissance d’images et d’autres techniques d’apprentissage modernes. Avec ces données volumineuses, les estimations d’hyperparamètres ne prennent pas la forme de la moyenne de l’échantillon (non linéaire), mais celle de la forme de la moyenne sur m-tuples, appelée l’estimateur U-statistique. Nous considérons dans cette thèse la collection de U-statistiques, connue sous le nom de U-processus, pour deux types de variables dépendantes, les données Markoviennes et les variables aléatoires localement stationnaires. Ainsi, nous avons divisé notre travail en deux parties pour aborder chaque type indépendamment. Dans la première partie, nous considérons les variables Markoviennes. Nous nous concentrons particulièrement sur les développements de U-processus bootstrappés dans un cadre de Harris. L’idée fondamentale utilisée repose sur les méthodes régénératives consistant essentiellement à diviser l’échantillon en blocs de données indépendants et identiquement distribués (i.i.d.), où chaque bloc correspond à des segments de chemin entre deux visites à un atome appelé A formant une séquence de renouvellement. Nous caractérisons les propriétés limites pour les U-processus indexés par des classes de fonctions uniformément bornées et non bornées. Nous montrons la consistance du bootstrap dans ce cadre. L’approche du bootstrap permet de contourner les problèmes fréquemment rencontrés pour l’évaluation des lois limites dépendants d’une manière complexe de paramètres inconnus. La technique de bootstrap que nous utilisons dans cette thèse est le bootstrap de renouvellement, où l’échantillon bootstrap est formé par rééchantillonnage à partir des blocs. Comme les blocs non bootstrapés sont indépendants, une partie des preuves se réduit au cas i.i.d. Les principales difficultés sont liées à la taille aléatoire des blocs rééchantillonnés, ce qui crée un problème non trivial de temps d’arrêts aléatoires, constituant un des grands obstacles de la généralisation de la théorie dans notre contexte. Pour contourner cette difficulté, nous avons utilisé comme étape intermédiaire la substitution du temps d’arrêt aléatoire par son espérance. La convergence faible des U-processus bootstrappés est très délicate dans notre cadre, en particulier l’équicontinuité en utilisant la comparaison avec le U-processus initial. Nous avons étendu les résultats susmentionnés au cas où le degré du U-processus croît avec la taille de l’échantillon n, le noyau variant dans une classe de fonctions. Nous avons caractérisé la convergence faible pour le bootstrap de renouvellement pour le U-processus à degré infini en faisant usage de la technique de découplage combinée avec des techniques de symétrisation. Enfin, nous considérons un bootstrap pondéré échangeable des U-processus empiriques. Dans la deuxième partie de cette thèse, les données dépendantes sont représentées par des fonctions aléatoires localement stationnaires. Propulsés par la représentation croissante des séries temporelles par des données fonctionnelles ou courbes, et le comportement non stationnaire de ces dernières, nous nous sommes intéressés au U-processus conditionnel des séries temporelles fonctionnelles localement stationnaires. Plus précisément, nous avons étudié la convergence faible des U-processus conditionnels, indexée par des classes de fonctions, dans le cadre de données fonctionnelles localement stationnaires. Nous avons caractérisé la convergence faible dans les deux cas lorsque la classe de fonctions est bornée ou non bornée satisfaisant certaines conditions de momentThe world is producing 2.5 quintillion bytes daily, known as big data. Volume, value, variety, velocity, and veracity define the five characteristics of big data that represent a fundamental complexity for many machine learning algorithms, such as clustering, image recognition, and other modern learning techniques. With this large data, hyperparameter estimations do not take the form of the sample mean (not linear). Instead, they takethe form of average over m-tuples, known as the U-statistic estimator in probabilityand statistics. In this work, we treat the collection of U-statistics, known as the Uprocess,for two types of dependent variables, the Markovian data, and locally stationary random variables. Thus, we have divided our work into two parts to address each type independently.In the first part, we deal with Markovian data. The approach relies on regenerative methods, which essentially involve dividing the sample into independent and identically distributed (i.i.d.) blocks of data, where each block corresponds to the path segments between two visits of an atom called A, forming a renewal sequence. We derive the limiting theory for Harris recurrent Markov chain over uniformly bounded and unbounded classes of functions. We show that the results can be generalized also to the bootstrappe dU statistics. The bootstrap approach bypasses the problems faced with the asymptotic behavior due to the unknown parameters of limiting distribution. Furthermore, the bootstrap technique we use in this thesis is the renewal bootstrap, where the bootstrap samplevis formed by resampling the blocks. Since the non-bootstrapped blocks are independent, most proofs reduce to the i.i.d. case. The main difficulties are related to the randomsize of the resampled blocks, which creates a problem with random stopping times. This problem is degraded by replacing the random stopping time with their expectation. Also, since we resample from a random number of blocks, and the bootstrap equicontinuity can be verified by comparing with the initial process, the weak convergence of the bootstrap U-process must be treated very carefully. We successfully derive the results in the case of the k-Harris Markov chain. We extend all the above results to the case where the degreeof U-statistic grows with the sample size n, with the kernel varying in a class of functions. We provide the uniform limit theory for the renewal bootstrap for the infinite-degree U-process with the help of the decoupling technique combined with symmetrization techniques in addition to the chaining inequality. Remaining in the Markovian setting, we extend the weighted bootstrap empirical processes to a high-dimensional estimation. We consider an exchangeably weighted bootstrap of the general function-indexed empirical U-processes. In the second part of this thesis, dependent data are represented by locally stationary random variables. Propelled by the increasing representation of the data by functionalor curves time series and the non-stationary behavior of the latter, we are interested in the conditional U-process of locally stationary functional time series. More precisely, we investigate the weak convergence of the conditional U-processes in the locally stationary functional mixing data framework. We treat the weak convergence in both caseswhen the class of functions is bounded or unbounded, satisfying some moment conditions. Finally, we extend the asymptotic theory of conditional U-process to the locallystationary functional random field {Xs,An : s ∈ Rn} observed at irregular spaced locations in Rn = [0,An]d ∈ Rd, and include both pure increasing domain and mixed increasing domain. We treat the weak convergence in both cases when the class of functions is boundedor unbounded, satisfying some moment conditions. These results are established underfairly general structural conditions on the classes of functions and the underlying models
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Brens, Raul Jr. "U-Th-Ba Elemental Fractionation during Partial Melting of Crustal Xenoliths and its Implications for U-series Disequilibria in Continental Arc Rocks." FIU Digital Commons, 2011. http://digitalcommons.fiu.edu/etd/406.
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Understanding U-series isotopic disequilibria of partially melted crust is integral for determining the effect that crustal assimilation has on the U-series signature of magmas. In this work, U, Th and Ba (as a proxy for Ra) elemental abundances were gathered on the quenched glass in partially melted crustal xenoliths of granitic composition using microbeam techniques. The crustal xenoliths, which are found in basaltic lava, from Mirador Volcano in Chile, are old, and can be assumed to be at secular equilibrium, whereas melting occurred during eruption of Mirador in 1979. A comparison of the ratios Ba/Th and U/Th in the partial melts with those of the whole rock reveal how much fractionation has occurred during partial melting. Different ratios of U, Th and Ba compared to the whole rock substantiate fractionation via partial melting. Thus, assimilation of partial melts of crust can play a role in U-series isotopic disequilibria.
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Shand, Mark Alexander. "Excited state processes of complexes of W(V) and U(VI) by laser photolysis and ESR spectroscopy." Thesis, University of Warwick, 1987. http://wrap.warwick.ac.uk/34627/.
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This thesis deals with the reactions of two high-valent metal complexes. [UO2]2+ and [W(CN)8]3- in their excited states in which their one-electron reduction potentials are increased greatly, i.e. sufficiently for them to remove an electron from water. The studies with uranyl ion cover the following, (i) the ground state interaction with some simple amino acids, (ii) the excited-state interaction with a variety of amino acids including some containing sulphur, which gave results of particular interest and, in following up the latter, (iii) the excited state interaction with some simple organosulphur compounds. These three inter-related topics form Chapters 8, 9 and 10 of this thesis. In more detail, in Chapter 8 we characterise optically, three new complexes of 1:4 stoichiometry between [UO2]2+ and glycine and α- and β-alanine in acidic aqueous solution. The x-ray crystal structure of the glycine complex confirms it as tetrakis (glycine) dioxouranium (VI) nitrate. Chapter 9 covers the kinetics of luminescence quenching of *[U02]2+ by amino acids (indicating the level of reactivity) and the quant yields of [U(IV)] which indicate the degree of charge separation from the initial radical-pair configuration, while cryogenic ESR data reveal the nature of the primary ligand-derived radical. Interestingly we find that while much the greatest kinetic reactivity towards *[UO2]2+ is shown by the sulphur-containing amino acids, these show very low yields for [U(IV)] production. This pattern is repeated in our study of the photo-oxidation of dialkyl sulphides by excited uranyl ion, in which we believe to have demonstrated that a. recent report of high quantum yields in this system and published in Inorganic Chemistry is erroneous. Our brief study of the aqueous [W(CN)8]3- system confirms the quantum yields for [W(CN)8]4- of Samotus et al., as opposed to the earlier data of Balzani and Carassiti and characterises, using ESR, IR and UV-vis spectroscopy, new W(V)-cyanide 4 complexes obtained during irradiation into the C-T bands of [W(CN)8]4- and [W(CN)8]3- in aqueous solution. Three publications have resulted hitherto from the above work in the following journals: Chapter 8: J. Chem. Soc., Dalton Trans., 1985, 517. Chapter 9:, Inorgý Chim. Acta, 1986, 114, 215. Chapter 10: Inorg. Chem., 1986, 21, 3840. The results from the final chapter together with data from the photoreduction of [W(CN)8]3- 81 with many organic systems obtained by Dr. D. Rehorek during his visit to the Department, have been compiled and submitted for publication to the Journal of the Chemistry Society, Dalton Transactions (paper 6/2444).
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Moragues, Quiroga Cristina. "Water mixing processes in the critical zone : evidence from trace elements and Sr-Nd-Pb-U isotopes." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAH002.
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Les fonctions hydrologiques de captage, stockage et rejet d’eau ont des signatures géochimiques dans les cours d'eau reflétant énormément celles trouvées dans les compartiments de la zone critique. Ces signatures sont fortement contrôlées par des processus bio-géophysico-chimiques produits dans l'interface régolite-plante. Jusqu'à présent, les recherches sur régolithes et processus hydrologiques sont restées largement découplées - conduisant à une utilisation généralisée de traceurs non conservateurs d'origines multiples, bloquant ainsi notre capacité à identifier les sources et les voies d'écoulement d’eau. Nous étudions ici le mélange d'eau dans la subsurface à travers un portefeuille unique de traceurs (éléments traces et isotopes O-H-Sr-Nd-Pb-U) permettant d'étudier les processus d'évolution du régolithe et le transport des solutés dans la zone critique. Nous signalons l'intérêt de cette approche pour renforcer la caractérisation des sources et voies d'écoulement d’eauCatchment hydrological functions of water collection, storage and release have geochemical signatures in stream water largely mirroring those found in critical zone compartments. These signatures are strongly controlled by the different bio-geo-physico-chemical processes that occur within the regolith-plant interface. Until now, investigations into the critical zone’s regolith and hydrological processes research have largely remained uncoupled –leading to a widespread use of non-conservative tracers with multiple origins and thereby stymieing our capability for identifying water pools and flow paths. Here we study the mixing of water in the subsurface through a unique portfolio of complementary groups of tracers (trace elements O-Hand Sr-Nd-Pb-U isotopes) which enables investigating regolith evolution processes and solutes transport within the critical zone. We report the interest of this approach to strengthen water flowpaths and end-members characterization
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Korzilius, Holly N. "The use of knowledge based decision support systems in reengineering selected processes in the U. S. Marine Corps." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2001. http://handle.dtic.mil/100.2/ADA397105.
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Thesis (M.S. in Information Technology Management) Naval Postgraduate School, Sept. 2001.Thesis advisors, Nissen, Mark E. ; Jansen, Erik. "September 2001." Includes bibliographical references (p. 101). Also Available in print.
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Pouliot, William. "Two applications of U-Statistic type processes to detecting failures in risk models and structural breaks in linear regression models." Thesis, City University London, 2010. http://openaccess.city.ac.uk/1166/.
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This dissertation is concerned with detecting failures in Risk Models and in detecting structural breaks in linear regression models. By applying Theorem 2.1 of Szyszkowicz on U-statistic type process, a number of weak convergence results regarding three weighted partial sum processes are established. It is shown that these partial sum processes share certain invariance properties; estimation risk does not affect their weak convergence results and they are also robust to asymmetries in the error process in linear regression models. There is also an application of the methods developed here to a four factor Capital Asset Pricing model where it is shown via the methods developed in Chapter 3 that manager stock selection abilities vary over time.
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Danica, Radovanović. "Uticaj internet zajednica na komunikaciono – društvene procese u umreženom okruženju." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2015. http://www.cris.uns.ac.rs/record.jsf?recordId=95216&source=NDLTD&language=en.
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Primenom teorija digitalnih komunikacija i sociologije veba i empirijskih dokaza, u doktoratu pažnja će biti posvećena pitanju mogućnosti primene internet tehnologija u oblasti visokog obrazovanja. Kroz kategorije nove društvenosti i umreženog zajedništva, procesi saradnje i interakcije su istraženi, i testirane su komunikacione mogućnosti internet zajednica u Srbiji. Biće analizirani i predstavljeni novi fenomeni koje se pojavljuju u praksama komunikacije i učešća u naprednim inteligentnim sistemima, kao što je visokoškolska zajednica.By deploying theories of digital communications and sociology of web, as well as the empirical evidence - in the thesis attention will be paid to the issue of the possibilities of application of Internet technologies in the area of higher education. Through categories of new sociability and networked community, the processes of collaboration and interaction are explored, and communication possibilities in the internet communities in Serbia are tested. New phenomena that emerge in the communication and collaboration practices in an advanced intelligent system, such is a higher education community, will be analysed.
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Wunderlich, Anja [Verfasser], Rainer U. [Akademischer Betreuer] Meckenstock, and Florian [Akademischer Betreuer] Einsiedl. "Influence of organic carbon sources and isotope exchange processes between water and nitrate on the fractionation of the stable isotopes ¹⁵N/¹⁴N and ¹⁸O/¹⁶O in dissolved nitrate during microbial denitrification in groundwater / Anja Wunderlich. Gutachter: Rainer U. Meckenstock ; Florian Einsiedl. Betreuer: Rainer U. Meckenstock." München : Universitätsbibliothek der TU München, 2012. http://d-nb.info/1038787343/34.
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Snežana, Gordić. "Generalized stochastic processes with applications in equation solving." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=110199&source=NDLTD&language=en.
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In this dissertation stochastic processes are regarded in the framework of Colombeau-type algebras of generalized functions. Such processes are called Colombeau stochastic processes.The notion of point values of Colombeau stochastic processes in compactly supported generalized points is established. The Colombeau algebra of compactly supported generalized constants is endowed with the topology generated by sharp open balls. The measurability of the corresponding random variables with values in the Colombeau algebra of compactly supported generalized constants is shown.The generalized correlation function and the generalized characteristic function of Colombeau stochastic processes are introduced and their properties are investigated. It is shown that the characteristic function of classical stochastic processes can be embedded into the space of generalized characteristic functions. Examples of generalized characteristic function related to gaussian Colombeau stochasticprocesses are given. The structural representation of the generalized correlation function which is supported on the diagonal is given. Colombeau stochastic processes with independent values are introduced. Strictly stationary and weakly stationary Colombeau stochastic processes are studied. Colombeau stochastic processes with stationary increments are characterized via their stationarity of the gradient of the process.Gaussian stationary solutions are analyzed for linear stochastic partial differential equations with generalized constant coefficients in the framework of Colombeau stochastic processes.U disertaciji se stohastički procesi posmatraju u okviru Kolomboove algebre uopštenih funkcija. Takve procese nazivamo Kolomboovi stohastički procesi. Pojam vrednosti Kolomboovog stohastičkog procesa u tačkama sa kompaktnim nosačem je uveden. Dokazana je merljivost odgovarajuće slučajne promenljive sa vrednostima u Kolomboovoj algebri uopštenih konstanti sa kompaktnim nosačem, snabdevenom topologijom generisanom oštrim otvorenim loptama. Uopštena korelacijska funkcija i uopštena karakteristična funkcija Kolomboovog stohastičkog procesa su definisane i njihove osobine su izučavane. Pokazano je da se karakteristična funkcija klasičnog stohastičkog procesa može potopiti u prostor uopštenih karakterističnih funkcija. Dati su primeri uopštenih karakterističnih funkcija gausovskih Kolomboovih stohastičkih procesa. Data je strukturna reprezentacija uopštene korelacijske funkcije sa nosačem na dijagonali. Kolomboovi stohastički procesi sa nezavisnim vrednostima su predstavljeni. Izučavani su strogo stacionarni i slabo stacionarni Kolomboovi stohastički procesi. Kolomboovi stohastički procesi sa stacionarnim priraštajima su okarakterisani preko stacionarnosti gradijenta procesa. Gausovska stacionarna rešenja za linearnu stohastičku parcijalnu diferencijalnu jednačinu sa uopštenim konstantnim koeficijentima su analizirana u okvirima Kolomboovih stohastičkih procesa.
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Bigot-Buschendorf, Maelianna. "Evolution thermo-cinématique et géodynamique du Brooks Range et du North Slope (Alaska-Canada)." Thesis, Paris 6, 2015. http://www.theses.fr/2015PA066688/document.
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La zone de déformation compressive des Brooks Range et des British-Barn située entre l’Alaska (Etats-Unis) et la région du Nord Yukon (Canada), en position arrière-arc, se développe dans un contexte cinématique et géodynamique depuis longtemps débattu. L’histoire tectonique du bloc continental Arctique d’Alaska, situé dans l’avant-pays de Brooks Range, est diversement interprétée dans les reconstructions de l’ouverture du bassin canadien. La chaîne de Brooks se développe à partir du Crétacé inférieur et sa mise en place se poursuit au Cénozoïque. Mieux contraindre son histoire d’exhumation, en relation avec le raccourcissement est essentiel dans cette région arctique où la cinématique des plaques, associée à l’ouverture du bassin canadien au Nord, fait l'objet de nombreux modèles géodynamiques controversés. La relation avec la subduction active Pacifique au Sud et les grands décrochements en arrière de la subduction fait de cette chaîne, en position arrière arc, une zone-clef pour affiner les reconstructions géodynamiques régionales et notre compréhension des processus orogéniques. Si le lien n'est pas établi entre la déformation mise en jeu dans cette subduction au Mésozoïque et la déformation dans la chaîne de Books, ce lien est en revanche assez bien documenté à l'heure actuelle. Il est donc légitime d'appréhender les événements sud-alaskans dans l'étude de cette chaîne de Brooks. La croissance de la chaîne au Cénozoïque est également mal comprise. Or, il s’agit d’un exemple quasi-unique de chaîne en milieu arctique active durant le Cénozoïque et qui a donc potentiellement enregistré des bouleversements climatiques majeurs, en l'occurrence depuis l‘optimum climatique à la transition Paléocène-Eocène, le refroidissement Oligocène jusqu’à la mise en place de glaciers et de la calotte nord-américaine au Quaternaire. Cet orogène est donc clef pour étudier voire quantifier l'impact du climat sur la construction topographique nord-alaskane. Ce travail a combiné une étude thermochronométrique basse-température multidatation (FT, (U-Th)/He) dans les massifs granitiques et dans les sédiments, qui ont fait l'objet de modélisation thermo-cinématiques via Pecube, dans le but de contraindre la construction orogénique depuis 100 Ma jusqu’à l’actuel. En parallèle, une approche structurale de terrain (Nord Yukon et Brooks Range) et l'analyse de données de subsurface ont été menées. Les données thermochronologiques, couplées à des analyses thermométriques RSCM et de la modélisation thermique soulignent la mise en place de reliefs au Crétacé supérieur avec une exhumation modérée (0.2 km/Ma) qui se poursuit jusqu'à la fin de l'Eocène, où les taux d'exhumation dans les chaînes de Brooks et British-Barn sont clairemement orogéniques (1.25-1.29km/Ma), et associés à la migration de la déformation vers les bassins adjacents. Ce travail souligne une migration de la déformation du SO vers le NE. Dans les deux segments de la chaîne un événement d'exhumation distinct est identifié à l'Oligocène : celui-ci est clairement associé dans la partie interne de la chaîne de Brooks à la mise en place hors-séquence d'un duplex crustal ; et associé à la migration de la déformation compressive en mer au large de la chaîne de British-Barn. Si le calendrier tectonique est semblable dans ces deux zones d'étude, il existe une différence majeure dans le style de déformation entre ces deux régions. Le front de déformation semble beaucoup plus éloigné de la chaîne et les failles beaucoup plus espacées dans la partie canadienne, éloignement et espacement probablement liés à l’épaisseur de sédiments syn-sédimentaires présents dans le bassinThe kinematics and geodynamics associated with the compressional deformation in the Brooks Range and British-Barn Mountains, respectively in Alaska (USA) and North Yukon (Canada), in a back-arc setting has long been debated. In particular, the tectonic history of the Arctic Alaska continental block located in the foreland of the Brooks Range has been diversely interpreted in the plate reconstructions proposed for the Canadian basin. The Brooks Range mountain chain develops from the Lower Cretaceous to the Cenozoic. Constraining its exhumational history and its link with shortening evolution is essential in this arctic area where plate tectonics, associated to the Canadian basin opening in the North, has led to controversial geodynamic models. Tectonic coupling with the active Pacific subduction in the south as well as major seismogenic strike-slip faulting make this orogen a key area where to refine the regional plate reconstructions and understanding of orogenic processes. The Cenozoic evolution of the Brooks Mountains is poorly understood although it is a nearly unique example of arctic orogen, which have potentially recorded major climate changes like Paleocene-Eocene Thermal Maximum, the Oligocene cooling and Quaternary glaciations. This orogen is a key to study and quantify the climate impact on the north-alaskan topographic growth. This study combined low-temperature thermochronometry (FT, U-Th/He) on granitic and sedimentary rocks, which were thermo-kinematically modeled using Pecube in order to define the orogenic evolution of this arctic region since 100 Ma. In parallel, a field-based structural study (North Yukon and Brooks Range) was combined with the analysis of subsurface data. Thermochronological data, coupled to thermometric RSCM analyses and thermal modeling first define a slow exhumation period (0.2 km/Ma) from Upper Cretaceous up to the Eocene. With the Eocene, exhumation rates drastically increased to reach 1.25-1.29km/Ma as the deformation also migrates from SW toward NE. In both alaskan and canadian parts of mountains ranges a clear Oligocene exhumational event is identified. This event is linked to out-of-sequence crustal duplexing in the internal part of the range in the Brooks Range, contemporaneous with the propagation of deformation offshore, along British and Barn Mountains
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Davidson, Adina O. Glazier Jocelyn. "Observing action research processes in practice." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2009. http://dc.lib.unc.edu/u?/etd,2385.
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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2009.Title from electronic title page (viewed Jun. 26, 2009). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the School of Education." Discipline: Education; Department/School: Education.
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Ould, Mohamed Abdel Haye Mohamedou. "Théorèmes limites pour des processus à longue mémoire saisonnière." Phd thesis, Université des Sciences et Technologie de Lille - Lille I, 2001. http://tel.archives-ouvertes.fr/tel-00001326.
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Nous étudions le comportement asymptotique de statistiques ou fonctionnelles liées à des processus à longue mémoire saisonnière. Nous nous concentrons sur les lignes de Donsker et sur le processus empirique. Les suites considérées sont de la forme $G(X_n)$ où $(X_n)$ est un processus gaussien ou linéaire. Nous montrons que les résultats que Taqqu et Dobrushin ont obtenus pour des processus à longue mémoire dont la covariance est à variation régulière à l'infini peuvent être en défaut en présence d'effets saisonniers. Les différences portent aussi bien sur le coefficient de normalisation que sur la nature du processus limite. Notamment nous montrons que la limite du processus empirique bi-indexé, bien que restant dégénérée, n'est plus déterminée par le degré de Hermite de la fonction de répartition des données. En particulier, lorsque ce degré est égal à 1, la limite n'est plus nécessairement gaussienne. Par exemple on peut obtenir une combinaison de processus de Rosenblatt indépendants. Ces résultats sont appliqués à quelques problèmes statistiques comme le comportement asymptotique des U-statistiques, l'estimation de la densité et la détection de rupture.
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Chautru, Emilie. "Statistiques multivariées pour l'analyse du risque alimentaire." Thesis, Paris, ENST, 2013. http://www.theses.fr/2013ENST0045/document.
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Véritable carrefour de problématiques économiques, biologiques, sociologiques, culturelles et sanitaires, l’alimentation suscite de nombreuses polémiques. Dans un contexte où les échanges mondiaux facilitent le transport de denrées alimentaires produites dans des conditions environnementales diverses, où la consommation de masse encourage les stratégies visant à réduire les coûts et maximiser le volume de production (OGM, pesticides, etc.) il devient nécessaire de quantifier les risques sanitaires que de tels procédés engendrent. Notre intérêt se place ici sur l’étude de l’exposition chronique, de l’ordre de l’année, à un ensemble de contaminants dont la nocivité à long terme est d’ores et déjà établie. Les dangers et bénéfices de l’alimentation ne se restreignant pas à l’ingestion ou non de substances toxiques, nous ajoutons à nos objectifs l’étude de certains apports nutritionnels. Nos travaux se centrent ainsi autour de trois axes principaux. Dans un premier temps, nous nous intéressons à l'analyse statistique des très fortes expositions chroniques à une ou plusieurs substances chimiques, en nous basant principalement sur des résultats issus de la théorie des valeurs extrêmes. Nous adaptons ensuite des méthodes d'apprentissage statistique de type ensembles de volume minimum pour l'identification de paniers de consommation réalisant un compromis entre risque toxicologique et bénéfice nutritionnel. Enfin, nous étudions les propriétés asymptotiques d'un certain nombre d'estimateurs permettant d'évaluer les caractéristiques de l'exposition, qui prennent en compte le plan de sondage utilisé pour collecter les donnéesAt a crossroads of economical, sociological, cultural and sanitary issues, dietary analysis is of major importance for public health institutes. When international trade facilitates the transportation of foodstuffs produced in very different environmental conditions, when conspicuous consumption encourages profitable strategies (GMO, pesticides, etc.), it is necessary to quantify the sanitary risks engendered by such economic behaviors. We are interested in the evaluation of chronic types of exposure (at a yearly scale) to food contaminants, the long-term toxicity of which is already well documented. Because dietary risk and benefit is not limited to the abuse or the avoidance of toxic substances, nutritional intakes are also considered. Our work is thus organized along three main lines of research. We first consider the statistical analysis of very high long-term types of exposure to one or more chemical elements present in the food, adopting approaches in keeping with extreme value theory. Then, we adapt classical techniques borrowed from the statistical learning field concerning minimum volume set estimation in order to identify dietary habits that realize a compromise between toxicological risk and nutritional benefit. Finally, we study the asymptotic properties of a number of statistics that can assess the characteristics of the distribution of individual exposure, which take into account the possible survey scheme from which the data originate
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Kim, Phillip 1973 Aldrich Howard. "Organizing activities and founding processes of new ventures." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2006. http://dc.lib.unc.edu/u?/etd,355.
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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2006.Title from electronic title page (viewed Oct. 10, 2007). "... in partial fulfillment of the requirements for the degree of Doctor in Philosophy in the Department of Sociology." Discipline: Sociology; Department/School: Sociology.
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Albert, Mélisande. "Tests d’indépendance par bootstrap et permutation : étude asymptotique et non-asymptotique. Application en neurosciences." Thesis, Nice, 2015. http://www.theses.fr/2015NICE4079/document.
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Premièrement, nous construisons de tels tests basés sur des approches par bootstrap ou par permutation, et étudions leurs propriétés asymptotiques dans un cadre de processus ponctuels, à travers l'étude du comportement asymptotique des lois conditionnelles des statistiques de test bootstrappée et permutée, sous l'hypothèse nulle ainsi que toute alternative. Nous les validons en pratique par simulation et les comparons à des méthodes classiques en neurosciences. Ensuite, nous nous concentrons sur les tests par permutation, connus pour contrôler non-asymptotiquement leur niveau. Les p-valeurs basées sur la notion de coïncidences avec délai, sont implémentées dans une procédure de tests multiples, appelée méthode Permutation Unitary Events, pour détecter les synchronisations entre deux neurones. Nous validons la méthode par simulation avant de l'appliquer à de vraies données. Deuxièmement, nous étudions les propriétés non-asymptotiques des tests par permutation en termes de vitesse de séparation uniforme. Nous construisons une procédure de tests agrégés, basée sur du seuillage par ondelettes dans un cadre de variables aléatoires à densité. Nous déduisons d'une inégalité fondamentale de Talagrand, une nouvelle inégalité de concentration de type Bernstein pour des sommes permutées aléatoirement qui nous permet de majorer la vitesse de séparation uniforme sur des espaces de Besov faibles et d'en déduire que cette procédure semble être optimale et adaptative au sens du minimaxOn the one hand, we construct such tests based on bootstrap and permutation approaches. Their asymptotic performance are studied in a point process framework through the analysis of the asymptotic behavior of the conditional distributions of both bootstrapped and permuted test statistics, under the null hypothesis as well as under any alternative. A simulation study is performed verifying the usability of these tests in practice, and comparing them to existing classical methods in Neuroscience. We then focus on the permutation tests, well known for their non-asymptotic level properties. Their p-values, based on the delayed coincidence count, are implemented in a multiple testing procedure, called Permutation Unitary Events method, to detect the synchronization occurrences between two neurons. The practical validity of the method is verified on a simulation study before being applied on real data. On the other hand, the non-asymptotic performances of the permutation tests are studied in terms of uniform separation rates. A new aggregated procedure based on a wavelet thresholding method is developed in the density framework. Based on Talagrand's fundamental inequalities, we provide a new Bernstein-type concentration inequality for randomly permuted sums. In particular, it allows us to upper bound the uniform separation rate of the aggregated procedure over weak Besov spaces and deduce that this procedure seems to be optimal and adaptive in the minimax sens
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Bae, Sung-Heui Fried Bruce. "Nursing unit turnover, workgroup processes, and unit-level patient outcomes." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,1545.
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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2008.Title from electronic title page (viewed Sep. 16, 2008). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the School of Public Health." Discipline: Public Health; Department/School: Public Health.
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Shelef, Eitan Oskin Michael. "Deformation processes adjacent to active faults examples from eastern California /." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,2066.
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Thesis (M.S.)--University of North Carolina at Chapel Hill, 2008.Title from electronic title page (viewed Feb. 17, 2009). "... in partial fulfillment of the requirements for the degree Master of Science in the Department of Geological Sciences." Discipline: Geology; Department/School: Geological Sciences. Includes supplemental map.
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Botleng, Vomaranda Joy. "Aligning cognitive processes with the design process in a University-based digital fabrication laboratory (Ub-Fablab)." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0066/document.
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Le concept de Laboratoire de Fabrication Digitale (Fablabs) est au départ, une plateforme de prototypage industriel pour les entrepreneurs locaux. Elle est introduit rapidement dans le domaine de l'éducation et sert de plus en plus souvent de plate-forme pour l'apprentissage et l'innovation.Avec l'impact actuel des technologies numériques au sein des sociétés, des organisations telles que le Conseil national de recherches (CNR) appellent le secteur de l'éducation à se tourner vers les compétences du 21ème siècle, tandis que le secteur industriel repense la conception et la production afin d’assurer la durabilité (y compris l'éco-conception et l'économie circulaire) et adopter les dernières technologies intégrées dans l’entreprise 4.0.Les plateformes « Fablab » implantées dans les universités (Ub-Fablabs) pourraient donc jouer un rôle essentiel en tant que «plateforme de support» pour répondre à ces demandes.Etant donné qu’il y a eu très peu ou pas de recherche sur les capacités de Ub-Fablabs pour répondre à ces demandes, cette recherche a adopté une double approche :1) étudier et aligner les compétences cognitives, affectives et psychomotrices y compris les compétences opérationnelles (en matière de logiciels, de notion de mécanique, d’électricité et de systèmes embarqués, …) intégrées dans le processus de conception d'Ub-Fablabs.2) Évaluer la capacité d'Ub-Fablabs à préparer les citoyens aux futures évolutions dans la conception et la production.Dans la partie 1 de la recherche, le chercheur a observé de près la conception et la production d'une machine servant à écraser des roches (RMM) pour laquelle l'utilisation d'une gamme de technologies (bois, pierre et matériaux synthétiques) ont été requises.Les activités de conception et de production ont été enregistrées à l'aide de notes de terrain, d'enregistrements vidéo et de photographies. Pour garder la trace des activités de conception et de production, un modèle de processus de conception itératif, le «modèle de conception de Nawita» (NDPM) a été développé et utilisé.Les données ont été analysées à l'aide d'une analyse de protocole adaptée et les résultats ont été représentés graphiquement.Les résultats ont montré que matérialiser les idées créatives incubées dans la phase 1 du NDPM a déclenché un pic étonnant de compétences cognitives, affectives et psychomotrices dans les étapes 2, 3 et 4 du NDPM. Ces processus et compétences ont sans aucun doute constitués des compétences requises au 21ème siècle.Dans la partie 2 de la recherche, une analyse adaptée des contenus en ligne a été utilisée pour collecter des données provenant de 90% des Ub-Fablabs dans le monde.Une échelle d'indicateurs de capacité Ub-Fablab (Ub-Fablab CIS) a été développée et utilisée pour évaluer quatre aspects potentiels d'Ub-Fablab. Cette échelle est une aide à la compréhension du processus de création. La plate-forme support incite les esprits proactifs à une meilleure intégration des processus de conception et de production.Ces composants sont: i) Infrastructure technologique; ii) Approche pédagogique constructiviste; iii) Collaboration à travers le réseautage numérique et iv) durabilité (y compris l'éco-conception et l'économie circulaire).Les résultats ont révélé que tous les Ub-Fablabs ont une position forte dans la fourniture d'infrastructures technologiques et une forte approche pédagogique constructiviste, mais peuvent avoir besoin d'améliorer leur capacité de collaboration à travers le réseautage et la restauration de la durabilité.Les résultats de cette recherche fournissent une solide réputation pour les Ub-Fablabs à être utilisés pour augmenter les efforts afin d’équiper les citoyens avec des compétences du 21ème siècle et inciter les esprits proactifs à une meilleure intégration et employabilitéThe concept of Digital Fabrication Laboratories (Fablabs), initially an industrial prototyping platform for local entrepreneurships is rapidly finding its way into the education arena and used as a platform for learning and innovation. With the current impact of digital technology on the societies, there are calls from organizations like the National Research Council (NRC) for the education sector to cater for the so-called 21st Century Skills, while the industrial sector to rethink design and production in order to cater for sustainability (inclusive of eco-design and circular economy) and to embrace the latest technologies in preparation for the Industries 4.0. Fablab platforms established in universities (Ub-Fablabs) could therefore play a vital role as a ‘support platform’ to meet these demands.Since there has been very little or no research into the capacities of Ub-Fablabs to meet these demands, this research took a two-fold approach toi) investigate and align cognitive, affective and psychomotor skills (inclusive of mechanical, electrical and embedded software operational skills) embedded in the design process in Ub-Fablabs.ii) assess the capacity of Ub-Fablabs to prepare citizens for the future design and production industries.In part 1 of the research, the researcher closely observed the design and production of a rock milling machine (RMM) where utilisation of a range of wood, stone and synthetic materials technologies were displayed. The design and production activities were recorded using field notes, video-recording and still photography. To keep trace of the design and production activities, an iterative design process model, the ‘Nawita Design Process Model (NDPM) was developed and utilised. Data was analysed using an adapted protocol analysis and results were graphed using pie and bubble-chart graphing. Results showed that materialising the creative ideas incubated in stage 1 of the NDPM unleashed a stunning peak of cognitive, affective and psychomotor skills in stages 2, 3 and 4 of NDPM. These processes and skills are undoubtedly constituted of the 21st Century Skills.In part 2 of the research, an adapted online content analysis was used to collect data from 90% of the Ub-Fablabs worldwide. An Ub-Fablab Capacity Indicator Scale (Ub-Fablab CIS) was developed and used to score on four potential aspects of Ub-Fablab if it has to be used as a support platform to incubate proactive minds for the future integration of design and production industries. These components are i) Technological infrastructure; ii) Constructionist pedagogical approach; iii) Collaboration through digital networking and iv) sustainability (inclusive of eco-design and circular economy). Results revealed that all Ub-Fablabs have a strong stand in providing technological infrastructures and a strong constructionist pedagogical approach, but may need to improve on its capacity for collaboration through networking and catering for sustainability.The findings of this research provides a strong standing for Ub-Fablabs to be utilised to augment efforts to equip citizens with 21st Century skills and incubate proactive minds for the future integration of design and production industries
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Didier, Gustavo de Vasconcellos Pipiras Vladas. "Studies in stochastic processes adaptive wavelet decompositions and operator fractional Brownian motions /." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2007. http://dc.lib.unc.edu/u?/etd,1186.
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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2007.Title from electronic title page (viewed Mar. 27, 2008). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Statistics and Operations Research Statistics." Discipline: Statistics and Operations Research; Department/School: Statistics and Operations Research.
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Slaughter, James Christopher Herring Amy H. "Bayesian latent variable methods for longitudinal processes with applications to fetal growth." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2007. http://dc.lib.unc.edu/u?/etd,1257.
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Thesis (DrPH)--University of North Carolina at Chapel Hill, 2007.Title from electronic title page (viewed Mar. 26, 2008). "... in partial fulfillment of the requirements for the degree of Doctor of Public Health in the Department of Biostatistics, School of Public Health." Discipline: Biostatistics; Department/School: Public Health.
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Schneider, Suzanne Zvalaren Willey Joan D. "Mercury sources and cycling processes in the Cape Fear River estuary, North Carolina." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2009. http://dc.lib.unc.edu/u?/etd,2906.
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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2010.Title from electronic title page (viewed Jun. 23, 2010). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Marine Sciences." Discipline: Marine Sciences; Department/School: Marine Sciences.
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Hester, Erich T. Doyle Martin W. "Impact of geomorphic structures on hyporheic exchange, temperature, and ecological processes in streams." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,2641.
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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2008.Title from electronic title page (viewed Oct. 5, 2009). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Curriculum in Ecology." Discipline: Ecology; Department/School: Ecology.
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Teixeira, Ana Aldrich Howard. "Swimming with dolphins a study on legitimacy processes in the southern California tuna industry /." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2009. http://dc.lib.unc.edu/u?/etd,2585.
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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2009.Title from electronic title page (viewed Oct. 5, 2009). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Sociology." Discipline: Sociology; Department/School: Sociology.
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Chen, Ping Harris Kathleen Mullan Guo Guang. "Assimilation processes of immigrants and their descendants college education, union formation, and labor market outcomes /." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2007. http://dc.lib.unc.edu/u?/etd,1034.
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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2007.Title from electronic title page (viewed Mar. 27, 2008). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Sociology." Discipline: Sociology; Department/School: Sociology.
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Lo, Joshua D. "Chinese American Christianity: how the ethnic-specific church interacts with the processes of migration and Americanization." Pitzer College, 2009. http://ccdl.libraries.claremont.edu/u?/stc,64.
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Lunsford, Valerie Hoey Germino Barbara B. "Women's initiation of a more physically active lifestyle after a cardiac event processes, patterns and influences /." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2006. http://dc.lib.unc.edu/u?/etd,321.
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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2006.Title from electronic title page (viewed Oct. 10, 2007). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the School of Nursing." Discipline: Nursing; Department/School: Nursing.
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Dalibor, Jeličić. "Razvoj modela logističkog kontrolinga u industrijskim sistemima." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=110959&source=NDLTD&language=en.
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U radu se istražuje mogućnost primene metoda i instrumenata kontrolinga u logističkim preduzećima. Utvrđuju se performase kvaliteta logističke usluge, merila i metodologija praćenja. Poseban značajan rezultat je razvijen model za primenu logističkog kontrolinga u industrijskim sistemima. Prikazano je testiranje predloženom modela i na osnovu toga biće izvršena podešavanja modela.This paper examines the possibility of applying mehtods and instruments of controlling in logistics companies. Logistics services quality of performance are being determined, measurements and monitoring mehtodology. Result that is particularly significant is the developed model for implementation of logistics controlling in industrial systems. Testing of the proposed model is displayed and, based on this, the model settings will be performed.
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Davis, Laurence H. M. "Allostratigraphic interpretation of a modern coarse clastic barrier complex : depositional facies, processes and relative sea level relationships /." Internet access available to MUN users only, 2003. http://collections.mun.ca/u?/theses,60897.
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Vaughan, Leslie Giovanello Kelly. "Executive function in daily life age-related influences of executive processes on instrumental activities of daily living /." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,1778.
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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2008.Title from electronic title page (viewed Sep. 16, 2008). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Psychology Department, Cognitive Program." Discipline: Psychology; Department/School: Psychology.
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Watanabe, Shizuko. "Isotope and Trace Element Investigation of Magmatic Processes and Timescales in the Azores." Miami University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=miami1291837162.
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Sansonnet, Laure. "Inférence non-paramétrique pour des interactions poissoniennes." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00835427.
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L'objet de cette thèse est d'étudier divers problèmes de statistique non-paramétrique dans le cadre d'un modèle d'interactions poissoniennes. De tels modèles sont, par exemple, utilisés en neurosciences pour analyser les interactions entre deux neurones au travers leur émission de potentiels d'action au cours de l'enregistrement de l'activité cérébrale ou encore en génomique pour étudier les distances favorisées ou évitées entre deux motifs le long du génome. Dans ce cadre, nous introduisons une fonction dite de reproduction qui permet de quantifier les positions préférentielles des motifs et qui peut être modélisée par l'intensité d'un processus de Poisson. Dans un premier temps, nous nous intéressons à l'estimation de cette fonction que l'on suppose très localisée. Nous proposons une procédure d'estimation adaptative par seuillage de coefficients d'ondelettes qui est optimale des points de vue oracle et minimax. Des simulations et une application en génomique sur des données réelles provenant de la bactérie E. coli nous permettent de montrer le bon comportement pratique de notre procédure. Puis, nous traitons les problèmes de test associés qui consistent à tester la nullité de la fonction de reproduction. Pour cela, nous construisons une procédure de test optimale du point de vue minimax sur des espaces de Besov faibles, qui a également montré ses performances du point de vue pratique. Enfin, nous prolongeons ces travaux par l'étude d'une version discrète en grande dimension du modèle précédent en proposant une procédure adaptative de type Lasso.
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Belknap, Sabrina Marie Oskin Michael. "Investigating processes of glacial erosion and cirque formation by numerical modeling and field observations in the Southern Sierra Nevada, California." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2009. http://dc.lib.unc.edu/u?/etd,2717.
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Thesis (M.S.)--University of North Carolina at Chapel Hill, 2009.Title from electronic title page (viewed Mar. 10, 2010). "... in partial fulfillment of the requirements for the degree of Master of Science in the Department of Geological Sciences Geomorphology." Discipline: Geology; Department/School: Geological Sciences.
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Marija, Perović. "Procena uticaja i regionalne specifičnosti hidrogeohemijskih uslova na transformaciju azotnih jedinjenja u podzemnim vodama." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2019. https://www.cris.uns.ac.rs/record.jsf?recordId=111084&source=NDLTD&language=en.
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Cilj istraživanja doktorske disertacije je utvrđivanje koncentracionih nivoa, odnosa, uslovljenosti i korelacija između jedinjenja koja učestvuju u transformaciji azotnih jedinjenja u odabranim površinskim i podzemnim vodama. Praćene su promene koncentracija fizičko-hemijskih parametara koje ukazuju na ispunjenost uslova za odvijanje pojedinih procesa transformacije, poreklo podzemne vode i antropogene uticaje na kvalitet. Definisan je potencijal podzemnih voda za konzervaciju azota, a detaljna hidrogeohemijska, mikrobiološka, izotopska i statistička analiza, sprovedena je za dva akvifera ispod poljoprivrednih površina, kao reprezenta različitih uticaja uslova oksičnosti na transformaciju i transport azotnih jedinjenja, regionalno izvorište Ključ i drenažni sistem Kovin-Dubovac. Rezultati laboratorijskog i terenskog ogleda su korišćeni za utvrđivanje dominantnih puteva i modelovanje kinetike redukcije nitrata.The aim of the dissertation research is to determine concentration levels, relationships, conditionаlities and correlations between compounds involved in nitrogen transformations in selected surface and groundwaters. Changes in the concentration levels of physicochemical parameters which indicate the fulfillment of conditions for certain transformation processes, the origin of groundwater and anthropogenic impacts on water quality were all analysed. Groundwater potential for nitrogen conservation was determined. Detailed hydrogeochemical, microbiological, isotopic and statistical analysis were conducted for two aquifers under agricultural areas, representing different effects of the oxicity conditions on the nitrogen transformation and transport, the regional groundwater source Ključ and drainage system Kovin-Dubovac. The results of the laboratory and field experiments were used to identify the pathways and model the kinetics of nitrate reduction.
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Sellar, Christian Pickles John. "The relationship between the processes of outsourcing of Italian textile and clothing firms and the emergence of industrial districts in Eastern Europe." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2007. http://dc.lib.unc.edu/u?/etd,1162.
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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2007.Title from electronic title page (viewed Mar. 27, 2008). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Geography." Discipline: Geography; Department/School: Geography.
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Ko, Linda K. DeVellis Brenda M. "Information processes of health communication and fruit and vegetable consumption a multi-sample structural equation modeling approach by intervention and colon cancer status groups /." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,1889.
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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2008.Title from electronic title page (viewed Dec. 11, 2008). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Health Behavior and Health Education of the School of Public Health." Discipline: Health Behavior and Health Education; Department/School: Public Health.
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Štarha, Jan. "Hodnocení výkonnosti dodavatelského řetězce u společnosti Dahlhausen CZ., s.r.o." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2013. http://www.nusl.cz/ntk/nusl-223861.
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The diploma thesis deals with the performance measurement in supply chains. Performs analysis of the supply chain of Dahlhausen CZ, s.ro. Detail is then focused on the creation of a new framework for evaluating the performance of suppliers of this company.
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Lu, Zhengdong. "Constrained clustering and cognitive decline detection /." Full text open access at:, 2008. http://content.ohsu.edu/u?/etd,650.
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Colistra, Rita F. Shaw Donald Lewis. "Reporter perceptions of influences on media content a structural equation model of the agenda- and frame-building and agenda-cutting processes in the television industry /." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,1665.
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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2008.Title from electronic title page (viewed Sep. 16, 2008). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the School of Journalism and Mass Communication." Discipline: Journalism and Mass Communication; Department/School: Journalism and Mass Communication, School of.
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Camblos, Grace Zehnder Yopp Jan Johnson. "Getting the story straight newspaper reporters' decision making processes in coverage of same-sex marriage at The (Durham) Herald-Sun and The (Raleigh) News & Observer /." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2006. http://dc.lib.unc.edu/u?/etd,641.
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Thesis (M.A.)--University of North Carolina at Chapel Hill, 2006.Title from electronic title page (viewed Oct. 10, 2007). "... in partial fulfillment of the requirements for the degree of Master of Arts in the School of Journalism and Mass Communication." Discipline: Journalism and Mass Communication; Department/School: Journalism and Mass Communication, School of.
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Chmelař, Vít. "Zařízení pro monitorování degradačních procesů u materiálů živočišného původu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399460.
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The diploma thesis introduces the reader to the problems of chemical sensors and the basics of degradation processes in materials of animal origin. It describes some types of sensors and their principles. Atmel ATmega328 microprocessor, its parameters and programming are described. In the next part of the thesis there is a proposal and production of equipment for monitoring of degradation processes in materials of animal origin. Sample sof chicken and milk were mesuared. From these measurements, the gas concentration values were determined, where samples can be considered suitable for consumation.
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Deekens, Victor M. Greene Jeffrey Alan. "Differences in the use of macro-level self-regulated learning processes between students that gain declarative knowledge and students that gain conceptual understanding about complex science topics." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2009. http://dc.lib.unc.edu/u?/etd,2177.
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Thesis (M.A.)--University of North Carolina at Chapel Hill, 2009.Title from electronic title page (viewed Jun. 26, 2009). "... in partial fulfillment of the requirements for the degree of Master of Arts in Educational Psychology, Measurement, and Evaluation in the School of Education." Discipline: Education; Department/School: Education.
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Tranel, Lisa Marie. "Evaluation of Coupled Erosional Processes and Landscape Evolution in the Teton Range, Wyoming." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/38693.
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The evolution of mountain landscapes is controlled by complex interactions between large-scale tectonic, surficial and climate conditions. Dominant processes are attributed to creating characteristic features of the landscape, but topographic features are the cumulative result of coupled surficial processes, each locally effective in a different climate or elevation regime. The focus of erosion by glacial, fluvial, or mass wasting processes is highly sensitive to small changes in boundary conditions, therefore spatial and temporal variability can be high when observed over short time scales. This work evaluated methods for dissecting the history of complex alpine landscapes to understand the role of individual processes influenced by changing climate and underlying bedrock. It also investigated how individual and combined mechanisms of surficial processes influenced the evolution of topography in the Teton Range in Wyoming. Detrital apatite (U-Th)/He thermochronology and cosmogenic radionuclide erosion rates were applied to determine spatial and temporal variability of erosion in the central catchments of the range. Spatial variability existed between the glacial and fluvial systems, indicating that sediment erosion and deposition by these processes was controlled by short-term variability in climate conditions. Effective glacial incision also controlled other processes, specifically enhancing rock fall activity and inhibiting fluvial incision. Short-term erosion rates were highly variable and were controlled by stochastic processes, particularly hillslope failures in response to slope oversteepening due to glacial incision and orientation and spacing of bedrock fractures. Erosion rates averaged over 10 ky time scales were comparable to long-term exhumation rates measured in the Teton Range. The similarity of spatial erosion patterns to predicted uniform erosion and the balance between intermediate and long-term erosion rates suggests the landscape of the Teton Range is approaching steady-state, but frequent stochastic processes, short-term erosional variability and coupled processes maintain rugged topographic relief.Ph. D.
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Cahová, Veronika. "Inovace procesů zpracování osobních údajů u státní organizace." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2009. http://www.nusl.cz/ntk/nusl-222375.
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Master's thesis "Innovation processes personal data for the state organization," deals with the protection of personal data for processing, both in paper, as well as electronic form. The main topic is security policy, the assessment of security risks resulting proposals for the introduction of innovative processes aimed to prevent possible leakage and misuse of personal data.
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Johnson, Jodi L. "The p53 family interacting pathways in carcinogenesis and cellular response to DNA damage." Oregon Health & Science University, 2007. http://content.ohsu.edu/u?/etd,628.
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Ph.D.Molecular and Medical Genetics
The objective of this study is to examine, in light of the expression of multiple p53 family member isoforms, the specific role of p73 in malignant conversion, cellular response to DNA damage, and direct or indirect cooperation with other p53 family members in a clonal model of epidermal carcinogenesis. We first focused on the role of p73 in malignant conversion. Whether sporadic or siRNA induced, loss of p73 in initiated p53+/+ keratinocytes lead to conversion to squamous cell carcinoma (SCC) in vivo which was reversible upon reconstitution of TAp73α but not ΔNp73α. Second, we investigated the cellular response to ionizing radiation (IR) in the presence and absence of p73, showing that loss of p73 at malignant conversion was associated with resistance to IR in vitro. The loss of radiation sensitivity and malignant conversion was characterized by reduced steady state DNA binding levels of transcriptionally active p63 isoforms to the p21 promoter, failure to induce specific p53 family transcriptional targets, and failure to arrest in G1. Reconstitution of TAp73α, but not ΔNp73α, increased steady state DNA binding capabilities of TAp63β, TAp63γ, and ΔNp63γ, and steady state levels of p53 family target mRNA, but did not restore cellular sensitivity to IR. We thus uncovered a functional cooperation between TA isoforms of p73 and p63 and showed that p73-mediated DNA damage response was uncoupled from its tumor suppressive role. We observed preferential DNA binding of the inhibitory ΔNp63α isoform both in vitro and invivo in SCC suggesting that in the absence of TAp73α a balance is tipped toward DNA binding of the inhibitory isoforms. Third, we studied the role of the p53 family inkeratinocyte response to UVB. Tumorigenic cells lacking p73 that were resistant to IR remained sensitive to UVB, accompanied by DNA binding of the TAp63γ isoform, suggesting that keratinocyte response to UVB is not dependent upon p73 and suggesting a hierarchy of p53 family member responses to DNA damage. Finally, we examined TAp73α interaction with the p53 family inhibitor Mdm2. Mdm2 was in complex with DNA-bound p53 family members in malignant cells, but reconstitution of cells withTAp73α correlated with removal of Mdm2 from the complex, making them more like primary keratinocytes or initiated cells. Like the initiated cells, cells expressing TAp73α were refractory to treatment with the Mdm2-p53 inhibitor Nutlin-3 while cells lacking p73 expression or expressing ΔNp73α were sensitive. Thus, we suggest that p73 may be acting as a molecular shield to keep p53 family member inhibitors, such as ΔNp63α andMdm2, at bay. Further understanding of p53 family interplay in tumor development and DNA damage response could lead to new therapies or optimization of current therapeutic strategies in solid tumors of epithelium, particularly where deregulation or loss of p63 and p73 expression is associated with increased tumor invasiveness, treatment resistance, and poor patient prognosis.
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Conte, Elise R. "APPLICATIONS OF ISOTOPES TO MAGMATIC PROCESSES, ERUPTION AGES, AND NUCLEAR FORENSICS." Miami University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=miami1494441688196002.
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