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1
Kläver, Hendrik. "Tests of stochastic dominance for time series data : theory and empirical application /." Aachen : Shaker, 2006. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=015514471&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
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Kläver, Hendrik [Verfasser]. "Tests of Stochastic Dominance for Time Series Data : Theory and Empirical Application / Hendrik Kläver." Aachen : Shaker, 2006. http://d-nb.info/1186582863/34.
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Neubauer, Eric C. "Deconcentration, time-space convergence, and metropolitan dominance : the spatial reorganization of the U.S. urban system, 1940-1990 /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486398528557756.
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Zhang, Xu. "INCORPORATING TRAVEL TIME RELIABILITY INTO TRANSPORTATION NETWORK MODELING." UKnowledge, 2017. http://uknowledge.uky.edu/ce_etds/54.
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Travel time reliability is deemed as one of the most important factors affecting travelers’ route choice decisions. However, existing practices mostly consider average travel time only. This dissertation establishes a methodology framework to overcome such limitation.
Semi-standard deviation is first proposed as the measure of reliability to quantify the risk under uncertain conditions on the network. This measure only accounts for travel times that exceed certain pre-specified benchmark, which offers a better behavioral interpretation and theoretical foundation than some currently used measures such as standard deviation and the probability of on-time arrival.
Two path finding models are then developed by integrating both average travel time and semi-standard deviation. The single objective model tries to minimize the weighted sum of average travel time and semi-standard deviation, while the multi-objective model treats them as separate objectives and seeks to minimize them simultaneously. The multi-objective formulation is preferred to the single objective model, because it eliminates the need for prior knowledge of reliability ratios. It offers an additional benefit of providing multiple attractive paths for traveler’s further decision making.
The sampling based approach using archived travel time data is applied to derive the path semi-standard deviation. The approach provides a nice workaround to the problem that there is no exact solution to analytically derive the measure. Through this process, the correlation structure can be implicitly accounted for while simultaneously avoiding the complicated link travel time distribution fitting and convolution process.
Furthermore, the metaheuristic algorithm and stochastic dominance based approach are adapted to solve the proposed models. Both approaches address the issue where classical shortest path algorithms are not applicable due to non-additive semi-standard deviation. However, the stochastic dominance based approach is preferred because it is more computationally efficient and can always find the true optimal paths.
In addition to semi-standard deviation, on-time arrival probability and scheduling delay measures are also investigated. Although these three measures share similar mathematical structures, they exhibit different behaviors in response to large deviations from the pre-specified travel time benchmark. Theoretical connections between these measures and the first three stochastic dominance rules are also established. This enables us to incorporate on-time arrival probability and scheduling delay measures into the methodology framework as well.
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Ireland, David John. "Dielectric Antennas and Their Realisation Using a Pareto Dominance Multi-Objective Particle Swarm Optimisation Algorithm." Thesis, Griffith University, 2010. http://hdl.handle.net/10072/365312.
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Antennas utilising a dielectric medium are technologies that have become popular in modern wireless platforms. They offer several desirable features such as high efficiency, electrically small and resistance to proximity detuning. Being a volumetric radiator however, realising a final, commercially competitive solution, often requires the use of a computational optimisation algorithm.
In the realm of antenna design the practice of optimisation typically involves an automated routine consisting of a heuristic algorithm and a forward solving engine such as the finite element method (FEM) or finite difference time domain (FDTD) method. The solving engine is used to derive a post-processed performance value typically referred to as an objective or
fitness function, while the heuristic method uses the objective function data to determine the next trial solution or solutions that approach a design goal.
Nowadays, commercially viable antenna platforms are not characterised by a single performance value, but rather, a series of objective functions that are often inherently conflicting. Thus, an increase in one objective function results in a decrease in another. The optimisation algorithm is therefore required to seek a solution dictated by the preferences of the designer.
Classical literature dominantly featured preference articulation, a priori, where the set of objectives are transformed into a scalar using a predefined preference arrangement. Contemporary theory implements the articulation a posteriori, where the complete set of compromise solutions are sought by the optimisation algorithm.
It is hypothesised that modern multi-objective optimisation (MOO) theory, using a posteriori preference articulation, can be more useful for contemporary antenna design. By treating the objectives as individual dimensions in a mathematical space, it allows for independent, simultaneous optimisation. At the time of writing this dissertation, all commercial simulation software that include an optimisation algorithm use a predefined preference to the performance criteria. Thus, where a large set of equally potential solutions exist, only one final solution is delivered.
This thesis examines two novel dielectric antenna technologies and uses modern MOO theory to obtain new solutions that supersede their prototypes. Taking a commercial perspective by optimising the electromagnetic performance and the physical size of the antenna simultaneously, it is hypothesised this allows an unprecedented insight into the inherent tradeoffs of practical antenna configurations.Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Griffith School of Engineering
Science, Environment, Engineering and Technology
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Rose, Eli. "ON STOCHASTIC DOMINANCE OPTIONBOUNDS IN DISCRETE AND CONTINUOUSSPACE AND TIME WITH STOCHASTIC ANDDETERMINISTIC VOLATILITY AND PRICINGWITH CONSTANT RELATIVE RISK AVERSION." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1591093905197292.
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Mkadem, Mohamed Amine. "Flow-shop with time delays, linear modeling and exact solution approaches." Thesis, Compiègne, 2017. http://www.theses.fr/2017COMP2390/document.
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Dans le cadre de cette thèse, nous traitons le problème de flow-shop à deux machines avec temps de transport où l’objectif consiste à minimiser le temps de complétion maximal. Dans un premier temps, nous nous sommes intéressés à la modélisation de ce problème. Nous avons proposé plusieurs programmes linéaires en nombres entiers. En particulier, nous avons introduit une formulation linéaire basée sur une généralisation non triviale du modèle d’affectation pour le cas où les durées des opérations sur une même machine sont identiques. Dans un deuxième temps, nous avons élargi la portée de ces formulations mathématiques pour développer plusieurs bornes inférieures et un algorithme exact basé sur la méthode de coupe et branchement (Branch-and-Cut). En effet, un ensemble d’inégalités valides a été considéré afin d’améliorer la relaxation linéaire de ces programmes et d’accélérer leur convergence. Ces inégalités sont basées sur la proposition de nouvelles règles de dominance et l’identification de sous-instances faciles à résoudre. L’identification de ces sous-instances revient à déterminer les cliques maximales dans un graphe d’intervalles. En plus des inégalités valides, la méthode exacte proposée inclut la considération d’une méthode heuristique et d’une procédure visant à élaguer les nœuds. Enfin, nous avons proposé un algorithme par séparation et évaluation (Branch-and-Bound) pour lequel, nous avons introduit des règles de dominance et une méthode heuristique basée sur la recherche locale. Nos expérimentations montrent l’efficacité de nos approches qui dominent celles de la littérature. Ces expérimentations ont été conduites sur plusieurs classes d’instances qui incluent celles de la littérature, ainsi que des nouvelles classes d’instances où les algorithmes de la littérature se sont montrés peu efficacesIn this thesis, we study the two-machine flow-shop problem with time delays in order to minimize the makespan. First, we propose a set of Mixed Integer Programming (MIP) formulations for the problem. In particular, we introduce a new compact mathematical formulation for the case where operations are identical per machine. The proposed mathematical formulations are then used to develop lower bounds and a branch-and-cut method. A set of valid inequalities is proposed in order to improve the linear relaxation of the MIPs. These inequalities are based on proposing new dominance rules and computing optimal solutions of polynomial-time-solvable sub-instances. These sub-instances are extracted by computing all maximal cliques on a particular Interval graph. In addition to the valid inequalities, the branch-and-cut method includes the consideration of a heuristic method and a node pruning procedure. Finally, we propose a branch-and-bound method. For which, we introduce a local search-based heuristic and dominance rules. Experiments were conducted on a variety of classes of instances including both literature and new proposed ones. These experiments show the efficiency of our approaches that outperform the leading methods published in the research literature
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Miller, Jakob A. "All of the People, All of the Time: An Analysis of Public Reaction to the Use of Deception by Political Elites." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1491839441434844.
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López, Rafael. "Essays on individual choice." Doctoral thesis, Universitat Pompeu Fabra, 2005. http://hdl.handle.net/10803/289624.
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This thesis can be divided into two (unrelated) parts. The main part (Chapters 1 and 2)
focus on addiction models that entail departures from the classical discounting utility
model of Individual Intertemporal Choice: Habit-Formation and Self-Control problems.
The other part (Chapter 3) studies the famous p-Beauty Contest Game when we restrict
the individual’s choices to integer numbers.
In the first part, habit formation is the key feature for a product being addictive: a habit
is created when past consumption of the product increases current desire for
consumption. An addiction can be either beneficial (when past consumption increases
current utility, e.g. jogging) or harmful (when past consumption decreases current
utility, e.g. drug consumption). In general one could conceive of harmful addictions as
habit-forming activities that imply an immediate reward but generate future costs
(negative internalities) whereas beneficial addictions imply an immediate cost but
generate future rewards (positive internalities). Self-control problems are understood in
terms of time inconsistency: they arise when the individual cannot keep up with an
intended intertemporal plan of consumption.
In Chapter 1 we analyse a (harmful) addiction model proposed by O'Donoghue and
Rabin (O&R) for which they obtain a counterintuitive result: full awareness of selfcontrol
problems may exacerbate over-consumption. We show that this result arises
from their particular equilibrium selection for the induced intrapersonal game. We
provide dominating Markov Perfect equilibria where the paradox vanishes and that
seem more ''natural'' since they capture behaviours often observed in the realm of
addiction. We also address the issue of why a person could decide to start consuming
and possibly develop an addiction: contrary to O&R, and according to the common
intuition, we show that naiveté is at the essence.
In Chapter 2 we obtain an isomorphism between harmful and beneficial addictions in a
discrete-time binary choice context (the model of the first chapter being a particular
case of this context). The equivalence thus established allows us to study both
phenomena (harmful and beneficial addictions) as two sides of the same coin. Besides
the theoretical insight it provides, this dualism is also useful: in particular, it permits to
readily translate the results obtained in the first chapter to the domain of beneficial
addictions. Once the dualism is established, we analyse addictions under both timeconsistent
and time-inconsistent preferences.
In Chapter 3, we provide a full characterization of the pure-strategy Nash Equilibria for
the p-Beauty Contest Game when we restrict individual's choices to integer numbers.
Opposed to the case of real number choices, equilibrium uniqueness may be lost
depending on the value of p and the number of players: in particular, as p approaches 1
any symmetric profile constitutes a Nash Equilibrium. We also show that any
experimental p-Beauty Contest Game can be associated to a game with the integer
restriction and thus multiplicity of equilibria becomes an issue. Finally, we show that in
these games the iterated deletion of weakly dominated strategies may not lead to a
single outcome while the iterated best-reply process always does (though the outcome
obtained depends on the initial conditions).
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Chiam, Ruth. "Speech Motor Control in English-Mandarin Bilinguals who stutter." Thesis, University of Canterbury. Department of Communication Disorders, 2013. http://hdl.handle.net/10092/7793.
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Research examining bilinguals who stutter (BWS) is limited; in particular there are few studies that have considered examining features of speech motor control in BWS. The present study was designed to examine features of speech motor control in bilingual speakers of Mandarin and English. Speech motor control was examined through the acoustic analysis of speaking rate, voice onset time (VOT) and stuttering adaptation. Participants ranged from age between 9 and 27 years. Upon completion of a language dominance questionnaire, two BWS participants were found to be English dominant and three were Mandarin dominant. Each BWS participant was matched to age/sex matched control participants (BWNS). Results for the BWS participants found more stuttering in the less dominant language based on a measure of percentage of syllables stuttered. All of the BWS participants demonstrated stuttering adaptation and there was no significant difference in the amount of adaptation for Mandarin and English. There was no difference found between BWS and BWNS for speaking rate and VOT. In spite of the similarity between BWS and BWNS, speaking rate in Mandarin appeared to be faster compared to English. These findings suggest that speech motor control in BWS and BWNS are similar and current application of these findings to the clinical setting is discussed.
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Pereira, Gonçalo da Silva. "Estudo ultrassonográfico de alguns aspectos da dinâmica ovárica em vacas da raça Frísia Holstein sujeitas a vários protocolos de indução de ovulação." Master's thesis, Universidade de Lisboa. Faculdade de Medicina Veterinária, 2013. http://hdl.handle.net/10400.5/6103.
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Dissertação de Mestrado Integrado em Medicina VeterináriaEsta dissertação abordou vários temas da área de reprodução bovina, nomeadamente inseminação artificial em tempo fixo (IATF) e ultrassonografia. Após um enquadramento teórico onde se pode consultar uma revisão sobre os fundamentos e aplicações reprodutivas da ultrassonografia em bovinos, fez-se a apresentação do trabalho experimental realizado. O objectivo deste ensaio foi o de estudar a dinâmica ovárica resultante de cada um dos protocolos de IATF seleccionados (Ovsynch e Doublesynch), de maneira a tentar detectar diferenças nas dimensões das estruturas ováricas que pudessem justificar as eventuais diferenças de fertilidade entre eles. Ao mesmo tempo, analisou-se a possibilidade da existência de uma relação entre as dimensões dos folículos dominantes e dos corpos lúteos deles resultantes em diferentes dias após a inseminação, assim como, entre as dimensões dos mesmos e a probabilidade das vacas ficarem gestantes. Os resultados do presente ensaio permitiram constatar que vacas que ovulam espontaneamente após a regressão lútea induzida por prostaglandina F2α, apresentaram um folículo pré-ovulatório de dimensões superiores aos das vacas submetidas a protocolos de sincronização de ovulação. Não foram detectadas quaisquer diferenças ao nível das dimensões das estruturas ováricas entre os diferentes protocolos de sincronização de ovulações que justificassem as diferenças de fertilidade descritas por outros autores, assim como quaisquer correlações entre as variáveis estudadas. Entre outras razões, esta ausência de diferenças pode ficar a dever-se à reduzida amostra do ensaio (n=15, para cada um dos grupos). Quanto à existência de uma relação entre as dimensões das estruturas e a probabilidade das vacas ficarem gestantes, apenas foi detectada uma relação com as dimensões do corpo lúteo aos 14 dias após a inseminação artificial. Assim, pode concluir-se que para a detecção de diferenças estatisticamente significativas a nível das dimensões das estruturas ováricas de vacas sujeitas a diferentes protocolos de sincronização de ovulação, teria sido ideal a utilização de grupos de uma maior dimensão.
ABSTRACT - Ultrasonografic study of some aspects of the ovarian dynamic in Holstein Frisian cows submitted to several fixed time artificial insemination protocols - This dissertation approached several subjects of bovine reproduction, namely fixed time artificial insemination and ultrasonography. After a theoretical framework where it can be consulted a review on ultrasound basis and his applications on bovine reproduction there’s a description of the experimental trial. The purpose of this trial was to study the ovarian dynamics resulting from each of the selected fixed time artificial insemination protocols (Ovsynch e Doublesynch), in order to detect possible differences in the dimensions of ovarian structures that might justify the differences in fertility. At the same time we tried to verify the existence of a relationship between the size of dominant follicles and corpora lutea at different days post insemination as well as between the same dimensions and the probability of cows becoming pregnant. The results of this trial showed that cows which ovulate spontaneously after luteal regression induced by prostaglandin F2α, had a pre-ovulatory follicle larger than those of cows undergoing a protocol of ovulation synchronization. No differences were found in the size of ovarian structures between the different ovulation synchronization protocols that justify the differences in fertility described, as well as any correlations between variables, among other reasons this lack of difference may be due to the reduced sample (n = 15 for each group). As for the existence of a relationship between the dimensions of the structures and the probability of cows becoming pregnant, only the size of the corpus luteum at 14 days post insemination showed to have a correlation. Thus, it can be concluded that for the detection of statistically significant differences in the dimensions of ovarian structures of cows submitted to different ovulation synchronization protocols, it would be ideal to use larger groups.
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Zang, Jingjing. "Controlling the dominant time constant in cone photoreceptors : the role of Ca²⁺ concentration." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611483.
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Falcó, Pérez Coral. "Estudio sobre parámetros mecánicos y distancia de golpeo de Bandal Chagui de Taekwondo." Doctoral thesis, Universitat de València, 2009. http://hdl.handle.net/10803/9924.
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En este estudio se analizan los parámetros mecánicos fuerza de impacto (FI), tiempo de reacción (TR), tiempo de movimiento (TM), tiempo total de respuesta (TT) y dominancia, en la patada circular o Bandal Chagui en Taekwondo, basado en la regulación de la distancia de golpeo (ED1, ED2 y ED3). Para ello, se ha utilizado un sistema de nueva creación formado por una plataforma de contacto, una plataforma de fuerzas, un led de luces y un maniqui. La muestra esta compuesta por 51 taekwondistas (22 medallistas y 29 no medallistas; 37 varones y 19 mujeres; 42 diestros y 9 zurdos) de la Comunidad Valenciana con una media de edad de 24.49 años (DT = 5.94), una media de peso de 70.91 kg (DT = 12.95) y una longitud de pierna de 1.03 metros (DT = .06). En cuanto a la fuerza de impacto, los resultados muestran que los medallistas golpean con una mayor fuerza de impacto que los no-medallistas desde la distancia larga (D3) con ambas piernas y, desde la distancia corta (D1) con la pierna izquierda. Asimismo, los varones golpean con una mayor fuerza de impacto que las mujeres desde todas las distancias, excepto desde la distancia media (D2) con la pierna izquierda. Por otra parte, en el género varón, el peso tiene una relación positiva con la fuerza de impacto.En cuanto al tiempo de reacción, existen diferencias entre medallistas y no-medallistas desde la distancia media (D2) y larga (D3) con la pierna izquierda, mientras que el género no influye en el tiempo de reacción. En el tiempo de movimiento, no existen diferencias entre medallistas y no-medallistas ni entre varones y mujeres. Al mismo tiempo, el tiempo de reacción tiene una relación negativa con el tiempo de movimiento. Por su parte, los medallistas muestran un menor tiempo total de respuesta que los no-medallistas desde la distancia larga (D3) con la pierna izquierda, mientras que los varones golpean en un menor tiempo total de respuesta que las mujeres desde la distancia corta (D1). En cuanto a los análisis realizados teniendo en cuenta la dominancia, los medallistas muestran una asimetría en el tiempo de reacción desde la distancia larga (D3), mientras los no-medallistas muestran una asimetría en el tiempo total de respuesta desde las tres distancias planteadas (ED1, ED2 y ED3) y, en la fuerza de impacto desde la distancia corta (D1). El género varón muestra una asimetría en la fuerza de impacto desde la distancia corta (D1), mientras que en el género mujer no existen diferencias entre la pierna dominante y no-dominante. Así pues, la distancia de ejecución es un factor a tener en cuenta en la realización de una patada circular o Bandal Chagui medido con un sistema capaz de obtener datos objetivos del rendimiento mecánico mediante la estandarización de un protocolo, permitiendo diferenciar a los sujetos en función del nivel competitivo y del género, siendo una herramienta útil en el entrenamiento.We analyzed the mechanical parameters impact force (FI), reaction time (TR), movement time (MT) and total response time (TT) and dominance in a roundhouse kick among three execution distances. To this end, a new system based in a contact platform, force platform, a led and a mannequin was used. The sample was composed by 51 taekwondo players (22 medallist and 29 non medallist; 37 male and 19 female) aged from 16 to 31 years (M = 24.49; S.D. = 5.9), weighing from 46 to 101 kg (M = 70.91; SD = 12.91) were selected to participate in the study. Medallists kicks with a higher FI from the long distance with both legs and from the shortest one with the left leg. Men kick with higher FI than women from all distances, except from the medium distance with the left leg. Significant differences have been found between medallists and non-medallist for RT from medium and large distance with the left leg, without differences among genere. No differences have been fount among movement time. Reaction time and movement time has a negative relation. Medallist had a less TT than non-medallist from the large distance with the left leg, while men kick with less TT than women from the shortest one. Medallist showed an asymmetry in RT from the large distance, while for non-medallist this asymmetry is showed in TT from all distances and in FI from the shortest distance. The execution distance is a parameter to take into account into a roundhouse kick performance.
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Schwartz, Michael. "Optimized Forecasting of Dominant U.S. Stock Market Equities Using Univariate and Multivariate Time Series Analysis Methods." Chapman University Digital Commons, 2017. http://digitalcommons.chapman.edu/comp_science_theses/3.
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This dissertation documents an investigation into forecasting U.S. stock market equities via two very different time series analysis techniques: 1) autoregressive integrated moving average (ARIMA), and 2) singular spectrum analysis (SSA). Approximately 40% of the S&P 500 stocks are analyzed. Forecasts are generated for one and five days ahead using daily closing prices. Univariate and multivariate structures are applied and results are compared. One objective is to explore the hypothesis that a multivariate model produces superior performance over a univariate configuration. Another objective is to compare the forecasting performance of ARIMA to SSA, as SSA is a relatively recent development and has shown much potential.
Stochastic characteristics of stock market data are analyzed and found to be definitely not Gaussian, but instead better fit to a generalized t-distribution. Probability distribution models are validated with goodness-of-fit tests. For analysis, stock data is segmented into non-overlapping time “windows” to support unconditional statistical evaluation. Univariate and multivariate ARIMA and SSA time series models are evaluated for independence. ARIMA models are found to be independent, but SSA models are not able to reach independence. Statistics for out-of-sample forecasts are computed for every stock in every window, and multivariate-univariate confidence interval shrinkages are examined. Results are compared for univariate, bivariate, and trivariate combinations of highly-correlated stocks. Effects are found to be mixed.
Bivariate modeling and forecasting with three different covariates are investigated. Examination of results with covariates of trading volume, principal component analysis (PCA), and volatility reveal that PCA exhibits the best overall forecasting accuracy in the entire field of investigated elements, including univariate models. Bivariate-PCA structures are applied in a back-testing environment to evaluate economic significance and robustness of the methods. Initial results of back-testing yielded similar results to those from earlier independent testing. Inconsistent performance across test intervals inspired the development of a second technique that yields improved results and positive economic significance. Robustness is validated through back-testing across multiple market trends.
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Narasimha, Pavan. "TRACKING R-R INTERVAL DYNAMICS BETWEEN MEN AND WOMEN DURING ORTHOSTASIS USING TIME-FREQUENCY DISTRIBUTION." UKnowledge, 2007. http://uknowledge.uky.edu/gradschool_theses/458.
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To track evolution of autonomic responses during orthostasis in men and women, we used discrete pseudo-Wigner distribution based time-frequency analysis to compute dominant frequencies and spectral powers in RR intervals and Systolic Blood Pressure (SBP). Data were collected from 38 healthy volunteers (22 men, 16 women) during 10 min supine posture followed by 30 min of 700 head up tilt. The RR intervals were computed from ECG and systolic blood pressure was and spectral amplitudes of RR intervals were integrated in two regions viz., Low Frequency (LF) region defined between 0.05-0.15 Hz and High Frequency region (HF), sometimes referred to as respiratory frequency region, defined as mean breathing frequency of the individual +/- one standard deviation. Dominant frequencies of RR intervals in the LF region decreased in both men and women. There were no significant differences between men and women as far as the SBP data were concerned for the dominant frequencies, however women had higher values than men. Dominant frequencies of RR intervals in the HF region increased both in men and women from supine to tilt. No significant differences in dominant frequencies were found between men and women. Also there were no significant differences even for the SBP data, however men had higher values than women Integrated powers within the auto spectra of RR showed that in the HF region, power decreased significantly for both men (pandlt;0.005), and women (pandlt;0.001) during tilt compared to supine. However, the HF power in women was significantly higher for men during both supine (pandlt;0.001), and tilt (pandlt;0.005). In LF region integrated power spectrum showed no significant difference between men and women although women showed a slight increase from supine to tilt. These results suggest that men have a higher sympathetic control while women have greater para-sympathetic influence.
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Piotrowski, Mateusz Aleksander. "Process of capital/process of labour : cryptotheologies of judgement, time and nature in the dominant economics/economy." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/43703/.
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The main argument of the thesis is that the dominant form of economics and correlative form of economy - despite its apparently secular character - contains an inherently cryptotheological dimension. A theological analysis exposes the dominant economics/economy as an instance of ‘law’ understood (after saint Paul Franz Kafka and Walter Benjamin) as a process engaging the subject into an infinite endeavour of justifying oneself by one’s own works. Within the framework of the dominant economics/economy, all labour is formalised as steaming from lack and unrest and the final end of action is formalised as non-action. Therefore peace can only be conceptualised as a perfect lack of action (viz. death). As a consequence death itself becomes the final end, that cannot be achieved as long as the subject lives. The analysis is based on a close-reading of the works prominent economists, focusing on the exponents of the Austrian School - Mises and Hayek - who as I try to prove, express the theological prejudgements of the dominant economics/economy in the most radical and philosophically stimulating manner. The thesis is also a polemic with these critics of the dominant economics/economy who state that it could be effectively criticised for being simply anti-natural, atemporal and value-free science/practice. My point is that a viable critique of the dominant mode of economic acting and thinking cannot be constructed, unless the fact that the hegemonic economic model actually makes use of the concepts of time, judgement and nature is taken into consideration. Only when the way the dominant economics/economy uses the concepts of economy as natural environment, economics as an art of allocation of time and as a value-saturated theory - elaboration of alternatives (including an alternative formalisation of productive labour) might become possible.
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Moghe, Sachin Anil. "SPATIO-TEMPORAL VARIATION IN ACTIVATION INTERVALS DURING VENTRICULAR FIBRILLATION." UKnowledge, 2002. http://uknowledge.uky.edu/gradschool_diss/251.
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Spatio-temporal variation in activation rates during ventricular fibrillation (VF)provides insight into mechanisms of sustained re-entry during VF. This study had three objectives related to spatio-temporal dynamics in activation rates during VF.
The first objective was to quantify spatio-temporal variability in activation rates,that is, in dominant frequencies, computed from epicardial electrograms recorded during VF in swine. Results showed that temporally and spatially, dominant frequencies variedas much as 20% of the mean dominant frequency, and the mean dominant frequencies increased during first 30 sec of VF. These results suggest that activation rates are nonstationary during VF.
The second objective of the study was to develop a new stimulation protocol for quantifying restitution of action potential duration (APD) by independently controlling diastolic intervals (DI). A property of cardiac cells that determines spatio-temporal variability in dominant frequencies is restitution of APD, which relates APD to the previous DI. Independent control of DI permits explicit determination of the role of memory in restitution. Restitution functions quantified using mathematical models of activation and our stimulation protocol, showed significant hysteresis. That is, for adiastolic interval, the action potential durations were as much as 15% longer during periods when the DI were decreasing than when the DI were increasing. We verified the feasibility of implementing our protocol experimentally in isolated and perfused rat hearts with action potentials recorded using floating glass microelectrodes.
The third objective of our study was to verify that spatio-temporal variability in dominant frequencies during VF could be modified using spatially distributed pacing strength stimuli. Simulated VF was induced in 400x400 and 400x800 matrices of cells. Electrical function of cells was simulated using the Luo-Rudy model. Stimulators were arranged in the matrices such that there were 5 rows of line stimulators. Results showed that it was possible to modify activations in almost 54% of the area and to modify spatio-temporal variability in activation during VF into a desired pattern by the use of synchronized pacing from multiple sites. These results support further exploration of distributed stimulation approach for potential improvements in defibrillation therapy.
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Giuliani, Corrado. "Automatic analysis of electrocardiographic repolarization: innovative approaches in the time and frequency domains." Doctoral thesis, Università Politecnica delle Marche, 2015. http://hdl.handle.net/11566/242935.
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La morte cardiaca improvvisa (SCD) rappresenta la causa principale di morte nei paesi industrializzati. Conseguentemente, a scopo preventivo, sono stati proposti numerosi indici, basati sull'onda T elettrocardiografica,cioè la ripolarizzazione cardiaca, tra i quali i più usati sono l'intervallo QT e la T-wave alternans. Tuttavia, nessuno di questi indici è stato in grado di fornire sensibilità e specificità sufficienti a giustificare terapie preventive. E' stato inoltre osservato che cambiamenti nella morfologia della ripolarizzazione si riflettono in variazioni del contenuto in frequenza delle onde T. Quindi gli obiettivi di questa tesi sono: (i) proporre indici basati sul contenuto in frequenza delle onde T e (ii) migliorare l'affidabilità dell'intervallo QT tramite una nuova procedura per l'identificazione della fine delle onde T (Toff).
(i) E' stata valutata la capacità di quattro nuovi indici, AUNE2-5, AUNE10-35, TCE10 e f99, sia nell'individuare la patologia sia come indici di rischio. L'indice f99 è risultato il più promettente: infatti, oltre a discriminare pazienti con patologie analogamente agli altri indici proposti, è anche utilizzabile come indice di rischio cardiovascolare.
(ii) L'onda T dominante (DTW), cioè un'onda globale di ripolarizzazione, è stata utilizzata per identificare i Toff tramite due algoritmi presenti in letteratura. La DTW è stata prima calcolata su tutte e 15 le derivazioni elettrocardiografiche, quindi su gruppi di derivazioni linearmente indipendenti per verificare se i risultati possano essere influenzati da ridondanza. L'identificazione dei Toff è risultata equivalente tra i due metodi quando la DTW è ottenuta usando le 15 derivazioni; Inoltre è stato verificato che non dipende dal numero di derivazioni usate per il calcolo della DTW, quando questo è superiore a 8.
In conclusione l'indice f99 e l'uso della DTW per migliorare l'affidabilità dell'intervallo QT sono un passo in avanti nell'analisi della ripolarizzazione cardiaca.Sudden cardiac death (SCD) is one of the leading causes of death in developed countries. Consequently, several noninvasive predictors of SCD based on the T-wave, that is the cardiac repolarization on electrocardiogram (ECG) tracings, have been proposed in the literature, such as the QT-interval and the T-wave alternans. However, none of these indexes has proven sufficient sensitivity and specificity to justify preventive treatments. Abnormalities in the repolarization morphology are reflected, in the frequency domain, in a variation of the T-wave frequency content. Thus, aims of the present thesis are: (i) to propose innovative frequency-based repolarization index (Toff) and (ii) to improve QT-interval reliability introducing a new procedure to help identify T-wave offsets (Toff). To aim (i), 4 new indexes are proposed, termed AUNE2-5, AUNE10-35, TCE10 and f99, and their ability to discriminate clinical to pathological condition or to assess cardiovascular risk is evaluated. As a result, the f99 is the most promising frequency-based repolarization index among all proposed, being able to assess cardiovascular risk, even though each of these indexes is able to discriminate clinical to pathological condition. To aim (ii), the dominant T-wave (DTW), which is a global repolarization waveform, is used to improve QT-interval reliability by identifying Toff on DTWs computed over all the clinical available 15 ECG leads and then over smaller, yet linear independent, leads' groups, to test if data redundancy could bias the analysis. As a result, Toff identification by two automatic methods is equivalent when performed on DTWs computed over 15 leads and results are not affected by data redundancy, being statistically comparable and strongly correlated when Toffs are identified on DTWs computed over 8 or more leads. In conclusion, the proposed innovative f99 index and the use of DTW to improve QT-interval reliability represent a step further in the ECG repolarization analysis.
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Faustmann, Timo Jendrik [Verfasser], Reza [Gutachter] Ahmadian, and Nikolas [Gutachter] Stoecklein. "Dominant-negative Überexpressionsmodelle für Proliferationsfunktionen von humanem B23 und C23 / Timo Jendrik Faustmann ; Gutachter: Reza Ahmadian, Nikolas Stoecklein." Düsseldorf : Universitäts- und Landesbibliothek der Heinrich-Heine-Universität Düsseldorf, 2018. http://d-nb.info/1164230336/34.
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Price, Nicholas F. "Deriving the Time-Course of the Dominant Frequency of Atrial Fibrillation from a Long Term in vivo Sheep Model using QRST Removal Techniques." University of Toledo / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1319763800.
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Sion, Henry Justine. "Les temps discordants de la musique : Une alternative à l'homogénéité du temps dominant, un enjeu de l'enseignement musical." Thesis, Lille 3, 2020. http://www.theses.fr/2020LIL3H004.
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A partir d’une analyse en immersion de pratiques musicales à vocation sociale au Venezuela et en Ecosse (El Sistema), la question de la perception du temps s’est imposée à moi comme essentielle à penser en tant qu’enseignante en conservatoire et musicienne. La musique entretient en elle-même un rapport étroit au temps, et l’utilisation du temps est devenue aujourd’hui une question politique cruciale sur deux aspects : dans notre vie quotidienne et dans les rapports de production. Je pose donc l’hypothèse qu’un travail de la musique peut modifier notre rapport au temps et au monde, dans une visée à la fois éthique et politique. J’analyserai les formes de temporalités (ou de temporalisations) qui sont développées par des penseurs (philosophes, historiens, sociologues, physiciens...) qui cherchent à sortir de l’urgence du temps imposée par notre société capitaliste, et qui encouragent l’anticipation, l’imagination, plutôt que la planification perpétuelle qui ne laisse aucune place – ou si peu, à l’individuation. Je suppose que la pratique de la musique, si elle est pensée dans ce sens, permet aux rythmes propres de chacun de s’exprimer (idiorrythmie), et de travailler un autre rapport au temps, et par là à l’apprentissage, à soi-même, aux autres. Il relève donc de la responsabilité de l’enseignant de penser un autre enseignement de la musique y compris au sein d’un environnement institutionnelThe opportunity I had to analyse socially oriented musical practice in Venezuela (El Sistema) and Scotland rose the question of time perception. From a music teacher's and performer's perspective, the matter seemed to be essential.Thus, from an ethical and political angle, I formulate the hypothesis that musical practice can influence our relation to time and to the world. I analyse different forms of temporality (or temporalisation) as developed by thinkers (philosophers, historians, sociologists, physicists...) who tried to think outside of the frame of time as an urgency, as it is imposed by capitalist society. These thinkers advocate anticipation and imagination, rather than the perpetual planification of time that leaves very little space, if any at all, to individuation.I suppose that musical practice, if considered this way, allows the expression of individual rhythms (idiorrhythmy). It also helps shaping another relation to time and, consequently, to learning, to oneself and to others.Therefore, it is the teacher's responsibility to design a new form of musical teaching, even within the institutions
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Conte, Alessia. "Patrimonio culturale interattivo: costruzione e ottimizzazione di modelli digitali tridimensionali per il real time rendering." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.
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La digitalizzazione del Patrimonio Culturale è diventata sempre più protagonista dell'attuale scenario di ricerche e indagini relative alla sua documentazione, conservazione e fruizione, evolvendosi continuamente sia all’interno del dibattito culturale europeo sia in numerose ricerche scientifiche.
In questa linea di ricerca e studio alcuni problemi relativi alle procedure di restituzione di modelli tridimensionali affidabili e soddisfacenti, è una questione molto dibattuta.
L'elaborato di tesi affronta e sperimenta le relative metodologie provenienti da diversi campi tecnologici, integrando alle applicazioni di telerilevamento le tecniche di modellazione proprie del mondo dell’intrattenimento; il caso di studio riguarda la digitalizzazione dell’area del “Recinto Sacro” del centro storico di Chiuro, oggetto di un'azione di ricerca del progetto “Le radici di una identità”.
L’obiettivo è quello di produrre modelli multiuso, altamente compressi, in grado di mantenere tutti i dettagli morfologici acquisiti con sensori di diversa natura per garantire sia la loro visualizzazione interattiva (animazioni, rendering e game engine), sia la documentazione del patrimonio (modelli altamente affidabili per pratiche di restauro e manutenzione).
Lo studio sviluppa e sperimenta una tecnica "ibrida" per l’ottimizzazione dei modelli, che lega strategie automatiche di Quad Dominant Remeshing a tecniche di Retopology manuale.
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Souza, Roger Marchesini de Quadros. "Regime de ciclos com progressão continuada nas escolas públicas: um cenário para o estudo dos impactos das mudanças educacionais no capital cultural e habitus dos professores." Pontifícia Universidade Católica de São Paulo, 2005. https://tede2.pucsp.br/handle/handle/10397.
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Previous issue date: 2005-01-28Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
The aim of this study is to contribute to the comprehension of how the changes entailed in the educational reform work and are expressed. It was accomplished based on a research about the new set, relative to the scholar organization, created by the changes introduced with the implantation of Cycle Regime with Ongoing Progression at elementary education in public schools from São Paulo. The initial hypothesis was that the this implantation would modify, meaningfully, the school time organization, what would generate a direct impact with the cultural capital and habitus of the teachers. The research took place in 2003 in two public schools from São Paulo state net subordinated to the same Teaching Board. It was made through interviews to two teachers in each school who worked at the second cycle of elementary school, 5th to 8th grades, at a total of four, and to the pedagogic coordinators that were working at this duty since the implantation of the reform. It was also performed the collection and analysis of school documents which expressed the school time organization. This job used the Pierre Bourdieu theoretical corpus as reference, mainly the cultural capital, arbitrary cultural dominant, strategies and habitus, to verify the resulting impact of the reform quoted at the consolidated docent practices. It was testified that the initial hypothesis, concerning the school time, was not proved. Nevertheless, the direct impact on the teacher s cultural capital and habitus regarding to meritocracy, which prizes and settles an ideal student pattern, the pedagogic authority reduction on behalf of ongoing progression that makes impossible the power of the decision about the retention or approval of the pupils, and the valorization and defense of the transmission of scholar contents without which school becomes devoid of its leading duty, was evidenced. Finally the adoption of strategies such as the defense of the Grade Board strengthening and the reduction of the cycles duration from four two years aiming at overcoming these impacts and its effects that are considered damaging, by the docents, to public schools and the pupils future.
Este estudo tem a finalidade de contribuir para a compreensão de como operam e se expressam as mudanças envolvidas em reformas educacionais. Realizou-se a partir de uma pesquisa sobre o novo cenário, relativo à organização escolar, criado pelas alterações introduzidas com a implantação do Regime de Ciclos com Progressão Continuada no Ensino Fundamental das escolas públicas paulistas. Partiu-se da hipótese inicial de que a implantação da referida reforma alteraria significativamente a organização do tempo escolar o que geraria um impacto direto no capital cultural e habitus dos professores. A pesquisa foi realizada em 2003 em duas escolas públicas, da rede estadual paulista subordinadas à mesma Diretoria de Ensino, por meio de entrevistas com dois professores de cada escola, de segundo ciclo do Ensino Fundamental, 5ª à 8ª séries, num total de quatro, com os professores coordenadores pedagógicos de cada unidade escolar, que estivessem no exercício dessa função desde a implantação da referida reforma. Foi também, realizada a coleta e análise dos documentos escolares que expressam a organização do tempo escolar. Este trabalho tem como referência o corpo teórico de Pierre Bourdieu privilegiadamente os conceitos de capital cultural, arbitrário cultural dominante, estratégias e habitus para se verificar o impacto resultante da implantação da reforma em tela nas práticas docentes consolidadas. Constatou-se que a hipótese inicial, no que se refere à organização do tempo escolar, não se comprovou. No entanto, emergiu, ao longo da pesquisa, o impacto direto sobre o capital cultural e habitus dos professores referentes a meritocracia, que valoriza e estabelece um padrão de aluno ideal, a redução da autoridade pedagógica em função da progressão continuada que impossibilita o exercício do poder de decisão sobre a retenção ou aprovação do alunado e, a valorização e defesa da transmissão dos conteúdos escolares sem o que a escola fica esvaziada de sua função precípua. Finalmente a adoção de estratégias, como, por exemplo, a defesa do fortalecimento do Conselho de Série e da redução do período de duração dos ciclos de quatro para dois anos visando a superação desses impactos e seus efeitos que são considerados danosos, pelos docentes, à escola pública e ao futuro dos alunos.
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Laneville, Michael Warren. "Subsurface Depositional Systems Analysis of the Cambrian Eau Claire Formation in Western Ohio." Bowling Green State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu154220482332536.
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Household, Sarah C. "Negociating the nation: time, history and national identities in Scott's medieval novels." Doctoral thesis, Universite Libre de Bruxelles, 2005. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210995.
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This thesis examines the relationships between different nations and cultures in Ivanhoe, The Talisman, Quentin Durward, Anne of Geierstein and Count Robert of Paris using Post-colonial theory. An analysis of Scott’s conception of society in general shows that 18th century Scottish historiography is fundamental to his vision of the world because it forms the basis of his systematization of history, social development and interaction between communities. It also profoundly influences his imagery and descriptions, as well as providing him with a range of stereotypes that he manipulates so skilfully that his great dependence upon them is occulted. Contemporary ideas and his own attitude to the Union of Scotland and England lead him to conceive of nation formation in terms of descent and hybridity. In part, he sees the nation as a community of blood. Yet, his acceptance of the Union means that he also considers it to be a body of different ethnic elements that live together. His use of the 18th century metaphor of family to figure the nation allows him to incorporate heredity and miscegenation into his analysis of national development through father-daughter couples. The father represents traditional culture, and the daughter, the nation’s present and future; her marriage to a foreigner signifying that people of differing descent can cross the nation’s porous borders. Religion is the final frontier: Christian nations cannot absorb non-Christians. Scott sees dominance and subordination as a complex part of human relationships. Apparently-subordinate subjects possess occulted power because their support of the hegemonic is often essential if the latter is to maintain its superiority. While his conception of society in patriarchal terms means that his female characters cannot offer violence to men, he shows that passive resistance is very effective. Through mimicry, the subordinate threatens the power and identity of the dominant. Power is not only conceived of in political terms. In Ivanhoe, Scott reveals the importance of moral stature which allows Rebecca to dominate the work although she is at the bottom of the political and racial hierarchy that structures English society. Scott’s conception of time is fundamental to the manner in which he conceives of the nation. Historical cultural forms are physicalised through chronotopes. Politically subordinate cultures base their actions in the present on pedagogic time, while the dominant ignore their past and live only in the present and the future. He also expresses dominant-subordinate relationships through speed, with time moving quickly for the powerful and slowly for the weak. Time, whether in the form of history, the characters’ perception of it or speed amalgamates all the various elements of Scott’s conception of nationhood into a seamless whole.Cette thèse analyse par le biais la théorie post-coloniale les relations internationales dans Ivanhoe, Quentin Durward, Anne of Geierstein et Count Robert of Paris. Les théories historiques élaborées en Écosse au XVIIIème siècle sont fondamentales dans la vision scottienne parce qu’elles forment la base de la systematisation de l’histoire, du développement sociale et, par conséquent, des relations entre les différentes communités. Ces théories influencent profondement les images qu’il utilise et la façon dont il décrit les caractères et les scènes. De plus, elles lui fournissent une gamme de stéréotypes qu’il manipule très adroitement. Sa conception de la manière dont se forment les nations vient des idées contemporaines et de sa propre expérience de l’union politique de l’Angleterre et de l’Écosse. Il considère la nation comme une communauté fondée sur l’ascendance par le sang mais aussi comme un groupe d’ethnies différentes qui vivent ensemble. Sa description de la nation emprunte à la métaphore de la famille courante au XVIIIième. Celle-ci lui permet d’inclure dans son analyse l’héridité et la mixité au moyen des couples formés par un père et sa fille. Le père représente la culture traditionelle, et la fille, le présent et le futur national. Son marriage avec un étranger signifie que les gens d’ascendance différente peuvent traverser les frontières perméables d’une nation. La religion est la frontière ultime: les nations chrétiennes ne peuvent absorber de non-chrétiens. Scott considère que la domination et la sujetion forment une partie complexe des relations humaines. Les sujets qui paraissent subordonnés possèdent en fait un pouvoir occulte, le dominant ayant besoin de leur soutien pour maintenir sa position. Bien que sa conception patriarcale de la société fasse que les caractères feminins ne manifestent pas d’agression envers les hommes, il montre que la résistance passive est très efficace. En imitant le sujet dominant, le sujet subordonné menace le pouvoir et l’identité de ce dernier. Le pouvoir ne s’exprime pas seulement dans la politique. Rebecca dans Ivanhoe revèle l’importance que revêtent le caractère et la moralité. Bien qu’elle soit au bas de la hiérarchie structurante de la société anglaise, elle domine le roman.
La conception que Scott se fait du temps est fondamentale à celle de la nation et de la culture. Au moyen du chronotope, les cultures historiques prennent des formes physiques. Les cultures qui sont subordonnées politiquement basent leur action au présent sur le “temps pédagogique”. Au contraire, le dominant rejette son passé et ne vit qu’au présent et au futur. Les relations entre le pouvoir dominant et le subordonné s’expriment aussi par la vitesse: le temps passe vite pour les puissants, mais lentement pour les faibles. En définitive, tous les éléments de la conception scottienne de la nation sont liés au temps, qu’il s’agisse de l’histoire, de perception par les caractères, ou de la vitesse.
Doctorat en philosophie et lettres, Orientation langue et littérature
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ONeal, Ryan J. "Seismic and Well Log Attribute Analysis of the Jurassic Entrada/Curtis Interval Within the North Hill Creek 3D Seismic Survey, Uinta Basin, Utah, A Case History." BYU ScholarsArchive, 2007. https://scholarsarchive.byu.edu/etd/1025.
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3D seismic attribute analysis of the Jurassic Entrada/Curtis interval within the North Hill Creek (NHC) survey has been useful in delineating reservoir quality eolian-influenced dune complexes. Amplitude, average reflection strength and spectral decomposition appear to be most useful in locating reservoir quality dune complexes, outlining their geometry and possibly displaying lateral changes in thickness. Cross sectional views displaying toplap features likely indicate an unconformity between Entrada clinoforms below and Curtis planar beds above. This relationship may aid the explorationist in discovering this important seismic interval. Seismic and well log attribute values were cross plotted and have revealed associations between these data. Cross plots are accompanied by regression lines and R2 values which support our interpretations. Although reservoir quality dune complexes may be delineated, the Entrada/Curtis play appears to be mainly structural. The best producing wells in the survey are associated with structural or stratigraphic relief and the thickest Entrada/Curtis intervals. Structural and stratigraphic traps are not always associated with laterally extensive dune complexes. Time structure maps as well as isochron maps have proven useful in delineating the thickest and/or gas prone portions of the Entrada/Curtis interval as well as areas with structural and stratigraphic relief. We have observed that the zones of best production are associated with low gamma ray (40-60 API) values. These low values are associated with zones of high amplitude. Thus, max peak amplitude as a seismic attribute may delineate areas of higher sand content (i.e. dune complexes) whereas zones of low amplitude may represent areas of lower sand content (i.e. muddier interdune or tidal flat facies). Lack of significant average porosity does not seem to be related to a lack of production. In fact, the best producing wells have been drilled in Entrada/Curtis intervals where average porosity is near 4 %. There are however zones within the upper portion of the Entrada/Curtis that are 40 ft. (12.2 m) thick and have porosities between 14% and 20%. By combining derived attribute maps with observed cross plot relationships, it appears that the best producing intervals within the Entrada/Curtis are those associated with high amplitudes, API values from 40-60 and structural relief.
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Ibarra, Ramirez Raul. "Applications of Time Series in Finance and Macroeconomics." Thesis, 2010. http://hdl.handle.net/1969.1/ETD-TAMU-2010-05-7803.
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This dissertation contains three applications of time series in finance and macroeconomics. The first essay compares the cumulative returns for stocks and bonds at
investment horizons from one to ten years by using a test for spatial dominance.
Spatial dominance is a variation of stochastic dominance for nonstationary variables.
The results suggest that for investment horizons of one year, bonds spatially dominate
stocks. In contrast, for investment horizons longer than five years, stocks spatially
dominate bonds. This result is consistent with the advice given by practitioners
to long term investors of allocating a higher proportion of stocks in their portfolio
decisions.
The second essay presents a method that allows testing of whether or not an
asset stochastically dominates the other when the time horizon is uncertain. In this
setup, the expected utility depends on the distribution of the value of the asset as
well as the distribution of the time horizon, which together form the weighted spatial
distribution. The testing procedure is based on the Kolmogorov Smirnov distance
between the empirical weighted spatial distributions. An empirical application is
presented assuming that the event of exit time follows an independent Poisson process
with constant intensity.
The last essay applies a dynamic factor model to generate out-of-sample forecasts for the inflation rate in Mexico. Factor models are useful to summarize the
information contained in large datasets. We evaluate the role of using a wide range of
macroeconomic variables to forecast inflation, with particular interest on the importance of using the consumer price index disaggregated data. The data set contains 54
macroeconomic series and 243 consumer price subcomponents from 1988 to 2008. The
results indicate that factor models outperform the benchmark autoregressive model at
horizons of one, two, four and six quarters. It is also found that using disaggregated
price data improves forecasting performance.
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Kläver, Hendrik [Verfasser]. "Tests of stochastic dominance for time series data : theory and empirical application / vorgelegt von Hendrik Kläver." 2006. http://nbn-resolving.de/urn:nbn:de:hbz:38-17414.
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Hsiung, Shih-Min, and 熊詩敏. "A Genetic Algorithm with Dominance Properties for Single and Unrelated Parallel Machine Scheduling with Setup Time Problems." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/78593060158407197234.
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碩士元智大學
工業工程與管理學系
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With the changing of production types, taking setup time into consideration is getting more and more important for industrial schedulers. Therefore, in this research, we explore the single machine scheduling problem that all jobs have a common due date that has been predetermined using the median of the set of sequenced, the objective is to find an optimal sequence with minimizing the total absolute deviation（Tardiness& Earliness）and the unrelated parallel machine scheduling with minimizing makespan under Sequence-dependent Setup time. Dominance Properties（DP） are developed according to the sequence swapping of two jobs and getting a new better sequence . Because DP trap into local optima easily, we combined dominance properties with global search algorithm, Genetic Algorithm and Simulated Annealing, became GADP and SADP. The hybrid algorithm is a two-stage procedure; the first phase result of DP is the initial solution of the second phase. We compared GADP and SADP with SGA and SA, the result shows that there is significant difference between them in single machine scheduling problems and Parallel Machine Scheduling Problems. In addition, DP outperforms GA and SA significantly in parallel machine Scheduling Problem. Therefore, DP is able to combine with meta-heuristic and get better solutions.
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MacLeod, Suzanne. "From the "rising tide" to solidarity: disrupting dominant crisis discourses in dementia social policy in neoliberal times." Thesis, 2014. http://hdl.handle.net/1828/5213.
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As a social worker practising in long-term residential care for people living with dementia, I am alarmed by discourses in the media and health policy that construct persons living with dementia and their health care needs as a threatening “rising tide” or crisis. I am particularly concerned about the material effects such dominant discourses, and the values they uphold, might have on the collective provision of care and support for our elderly citizens in the present neoliberal economic and political context of health care. To better understand how dominant discourses about dementia work at this time when Canada’s population is aging and the number of persons living with dementia is anticipated to increase, I have rooted my thesis in poststructural methodology. My research method is a discourse analysis, which draws on Foucault’s archaeological and genealogical concepts, to examine two contemporary health policy documents related to dementia care – one national and one provincial. I also incorporate some poetic representation – or found poetry – to write up my findings. While deconstructing and disrupting taken for granted dominant crisis discourses on dementia in health policy, my research also makes space for alternative constructions to support discursive and health policy possibilities in solidarity with persons living with dementia so that they may thrive.Graduate
0452
0680
0351
macsuz@shaw.ca
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Tellakula, Ashok Kumar. "Acoustic Source Localization Using Time Delay Estimation." Thesis, 2007. http://hdl.handle.net/2005/595.
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The angular location of an acoustic source can be estimated by measuring an acoustic direction of incidence based solely on the noise produced by the source. Methods for determining the direction of incidence based on sound intensity, the phase of cross-spectral functions, and cross-correlation functions are available. In this current work, we implement Dominant Frequency SElection (DFSE) algorithm. Direction of arrival (DOA) estimation usingmicrophone arrays is to use the phase information present in signals from microphones that are spatially separated. DFSE uses the phase difference between the Fourier transformedsignals to estimate the direction ofarrival (DOA)and is implemented using a three-element ’L’ shaped microphone array, linear microphone array, and planar 16-microphone array. This method is based on simply locating the maximum amplitude from each of the Fourier transformed signals and thereby deriving the source location by solving the set of non-linear least squares equations. For any pair of microphones, the surface on whichthe time difference ofarrival (TDOA) is constant is a hyperboloidoftwo sheets. Acoustic source localization algorithms typically exploit this fact by grouping all microphones into pairs, estimating the TDOA of each pair, then finding the point where all associated hyperboloids most nearly intersect. We make use of both closed-form solutions and iterative techniques to solve for the source location.Acoustic source positioned in 2-dimensional plane and 3-dimensional space have been successfully located.
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Chirambo, Kondwani. "The impact of democratisation on state media system in Zambia : the case of times newspapers." Thesis, 2011. http://hdl.handle.net/10500/4706.
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This thesis explores the manner in which political-economic forces born of
democratisation have shaped media developments in Zambia, affected the welfare of
journalists and the viability of the state owned press epitomised by the Times
Newspapers. The aim is to inform the privatisation policy discourse.
Using a political economy analysis, the thesis unveils the historical intimacy between
nationalist administrations and multinational business elites and how these forces - often
working in collusion - influenced patterns of media ownership, inhibited labour rights and
controlled communicative activity – indicative of how the state and markets can
constrain freedom of expression and association, despite democratisation.
The thesis contends that the uncertainty of neo-patrimonial conditions that characterised
the post colonial era has not dissipated to a great extent and continues to undermine
media and institutional reform in today’s liberally inclined Zambia.
Pervasive clientelism has also compromised popular perceptions of state media
systems, subverting competitiveness and the propagandist function of the Times
Newspapers in the liberalised market, a point empirically illustrated through the analysis
of market and public opinion data.Communication Science
D. Litt. et Phil. (Communication)
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Machová, Kamila. "Vzájemné vztahy vlastností vyčtených z fotografií obličejů." Master's thesis, 2018. http://www.nusl.cz/ntk/nusl-380313.
Full textAbstract:
Estimating others characteristics from facial cues plays an important role in our everyday lives. People usually agree in these estimates well and many of these estimates correlate. Majority studies consider one or few character- istics only and their respondents usually are in narrow ranges of ages. This study is partly based on rating of 13 characteristics of 80 men's and women's faces by respondents of various ages. These data were originally collected within yet unpublished study of Jaroslav Flegr, Amy E. Blum and Šebastian Kroupa. In this study I most strikingly found out that: i) older respondents of both genders rates photos of women as more attractive, ii) respondents spend more time by rating faces considered by themselves as more attractive or nice, iii) men rate people with different eye color as more attractive and women rate others with the same eye color as nicer, iv) preferences computed by two methods do not differ much. 1