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Salas, Villalobos Sergio. "Temporary Measures on the Merits Its uniqueness in the Peruvian procedural system and its necessary adequacy as a Self-Help Measure". IUS ET VERITAS, 2016. http://repositorio.pucp.edu.pe/index/handle/123456789/122529.
Pełny tekst źródłaEl presente artículo aborda las medidas temporales sobre el fondo, que para el autor es un concepto híbrido dentro del sistema procesal peruano. Para explicar esta noción procesal el autor empieza haciendo alusión a la tutela diferenciada y, dentro de ella, a las medidas autosatisfactivas; luego de ello, se refiere al escenario procesal donde deberían ubicarse las medidas temporales sobre el fondo y, además, hace una comparación entre las medidas cautelares y las medidasautosatisfactivas para concluir que las medidas temporales sobre el fondodeben asimilarse como medidas autosatisfactivas.
Kusevski, Dragan. "(Un)exceptional Measures Against a Housing Crisis - A Study of Temporary Housing in Sweden". Thesis, Malmö universitet, Fakulteten för kultur och samhälle (KS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-23121.
Pełny tekst źródłaRichards, J. D. W. "The allocation and effects of special employment measures : The case of the temporary employment subsidy and schemes operated by the Department of Industry". Thesis, University of Kent, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.353817.
Pełny tekst źródłaVachey, Julien. "L'urgence et le contrôle juridictionnel des atteintes législatives aux droits fondamentaux. : Etude de droit processuel public interne et européen". Electronic Thesis or Diss., Toulon, 2021. http://www.theses.fr/2021TOUL0146.
Pełny tekst źródłaCan urgency be reconciled with legislative review in the context of emergency appeals for the provisional protection of fundamental rights and in the context of pre filing referral mechanisms ?The study first focuses on the legislative review in emergency appeals for the provisional protection of fundamental rights. It then considers how is urgency considered in the referral review procedures carried out by ad quem judges. Despite initial reluctance, the function of summary proceedings judge is opening to the exercise of legislative review. Thus, there is a growing sensitivity of the referral review procedures to urgent situations of legislative violations of fundamental rights. Eventually, there is ground for arguing that the legislative review not only can be adapted to urgent situations we shall see how but also must be we shall see why
Verenich, Ilya. "Explainable predictive monitoring of temporal measures of business processes". Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/124037/1/Ilya_Verenich_Thesis.pdf.
Pełny tekst źródłaBonilha, Márcia Giangiacomo. "Medidas de urgência no âmbito recursal". Pontifícia Universidade Católica de São Paulo, 2008. https://tede2.pucsp.br/handle/handle/8213.
Pełny tekst źródłaThis paper aims to study the urgency measures within the appeal sphere. The urgency measures are differentiated injunction; in other words, alternate injunctions to the common, ordinary procedure. Due to the rediscovery we have been experiencing pursuant to the relation of the procedural law with the material law, such measures have revealed themselves as increasingly important to the acclaimed effectiveness of the jurisdictional injunction, to the concrete execution of the material law; its performance is not restricted to the proceedings in the first level of jurisdiction. The preliminary injunction, the temporary injunction and the restraining orders in general constitute urgency measures, without any sort of prohibition so that any of them may be granted within the appeal sphere. There are express provisions in the legal text which regulate the granting of urgency measures within the appeal scope. Thus, in this work, both typical and atypical measures are treated, emphasizing that the judging entity is not a mere applier of the law, but a central figure in the judicial-procedural relation, holder of the power / duty to ensure that the jurisdictional injunction is in conformance with the sacred principles and values of our legal system
Este trabalho tem por objetivo o estudo das medidas de urgência no âmbito dos recursos. São as medidas de urgência tutelas diferenciadas, ou seja, tutelas alternativas ao procedimento comum, ordinário. Em virtude da redescoberta que se vive da relação do direito processual com o direito material, tais medidas têm se revelado cada vez mais importantes à aclamada efetividade da tutela jurisdicional, à realização concreta do direito material, não estando sua atuação restrita aos processos no primeiro grau de jurisdição. Do gênero medidas de urgência são espécies a tutela antecipada, a tutela cautelar e as medidas liminares em geral, não havendo vedação para que qualquer delas seja concedida em sede recursal. Há expressas previsões no texto legal para a concessão de medidas de urgência no âmbito recursal. Assim, neste trabalho, tratamos tanto das medidas típicas quanto daquelas atípicas, salientando que o órgão julgador não é um mero aplicador da lei, mas sim uma figura central da relação jurídico-processual, detentor do poder/dever de garantir que a tutela jurisdicional esteja em conformidade com os princípios e valores consagrados no nosso sistema jurídico
Gao, Yang. "Mining Associations of Older Adults' Mobility and Sleep Data Measured via Passive Sensors". Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/28810.
Pełny tekst źródłaFalk, Hampus. "Measure development and social media analysis using temporal text networks". Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-393305.
Pełny tekst źródłaDe, Jesus Alma Lorelei. "Urban ambient particles: Long-term spatio-temporal trends and impacts of different control measures". Thesis, Queensland University of Technology, 2021. https://eprints.qut.edu.au/207786/1/Alma%20Lorelei_De%20Jesus_Thesis.pdf.
Pełny tekst źródłaChukwusa, Emeka. "The impact of alternative distance measures and temporal variation in demand on location-allocation decisions". Thesis, University of Leicester, 2014. http://hdl.handle.net/2381/32240.
Pełny tekst źródłaLatif, Sumaia Abdel. "Medidas de dependência local para séries temporais". Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/45/45133/tde-02042008-143641/.
Pełny tekst źródłaUnlike global association measures (Pearson´s linear correlation coefficient, Spearman´s rho, Kendall´s tau, for example), local dependence measures describe the behaviour of dependence locally in different regions. In this thesis, the local dependence measures for random variables proposed by Bairamov et al. (2003), Bjerve and Doksum (1993) and Sibuya (1960), are studied in the context of bivariate and univariate stationary stochastic processes, in this case, evaluating the performance of local dependence along time lags. We discussed the properties and studied the estimators and consistence of the first two measures. As for the Sibuya measure, in addition to discussing its properties, we propose three estimators for random variables and two for time series while checking their consistence. The behaviour of the three local measures and their respective estimators was evaluated by simulations and application to real data (in this case, a comparison was drawn with copula and copula density).
McCaslin, Devin Lochlan. "An objective measure of temporal resolution in normal subjects using frequency modulated signals /". The Ohio State University, 1999. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488190109867385.
Pełny tekst źródłaCharlton, Shawn R. "The relationship between behavioral measures of self-control temporal discounting and the single-player iterated prisoner's dilemma /". Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2006. http://wwwlib.umi.com/cr/ucsd/fullcit?p3233748.
Pełny tekst źródłaTitle from first page of PDF file (viewed December 6, 2006). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 137-148).
Tucci, Danielle. "Measures of Social Cognition in the Laboratory and Real World: Towards Temporal Dynamics of Implicit Other-Regard". Scholarship @ Claremont, 2012. http://scholarship.claremont.edu/scripps_theses/47.
Pełny tekst źródłaChicharro, Raventós Daniel. "Characterization of information and causality measures for the study of neuronal data". Doctoral thesis, Universitat Pompeu Fabra, 2011. http://hdl.handle.net/10803/22658.
Pełny tekst źródłaEstudiem dos mètodes d'anàlisi de dades que són eines habituals per a l'anàlisi de dades neuronals. Concretament, examinem la manera en què les interaccions causals entre regions del cervell poden ser investigades a partir de sèries temporals que reflecteixen l'activitat neuronal d'aquestes regions. A més a més, analitzem un mètode emprat per estudiar el codi neuronal que avalua la discriminació de les respostes de neurones individuals provocades per diferents estímuls. Aquesta anàlisi de la discriminació es basa en la quantificació de la similitud de les seqüències de potencials d'acció amb distàncies amb un paràmetre d'escala temporal. Tenint en compte els nostres resultats, comentem els estudis previs en els quals aquests mètodes han estat aplicats. Concretament, ens centrem en la interpretació de les mesures estadístiques en termes de connectivitat causal neuronal subjacent i propietats del codi neuronal, respectivament.
Moroney, Aoife. "The use of spatial and temporal analysis in the maintenance of road mortality mitigation measures for wildlife in Ireland". Thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-241441.
Pełny tekst źródłaHansen, Kristina S. Withers. "Reliability and a Measure of Sexual Interest: Examining the Temporal Stability of Scores on Affinity 2.5". BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2817.
Pełny tekst źródłaLouis, Pierre-Yves. "Ergodicity of PCA : equivalence between spatial and temporal mixing conditions". Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2006/658/.
Pełny tekst źródłaMcGuire, Lindsey C. "Temporal Changes in Depression and Neurocognitive Performance in Collegiate Student-Athletes: A Repeated Measures Evaluation Pre- and Post-Concussion Injury". Diss., Temple University Libraries, 2014. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/271333.
Pełny tekst źródłaPh.D.
The study had three purposes: 1.) examine the temporal change in depression symptoms among collegiate student-athletes throughout a fall athletic season, 2.) identify the course of depression in student-athletes pre- and post-concussion injury, and 3.) examine the relationship between neurocognitive performance and depression at baseline and post-concussion injury. Depression symptoms were measured every two weeks, beginning at pre-season baseline, until the end of the athletic season using the Patient Health Questionnaire-9 (PHQ-9). The Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT) exam was used to measure neurocognitive performance at baseline and post-concussion. A total of 593 (92.1%) participants were used in the depression analyses. On average, nearly a third of the athletes endorsed minimal levels of depression symptoms across the fall athletic season. Across the entire athletic season, 3.7% of student-athletes had their PHQ-9s red-flag for moderate to severe depression symptoms. Significant differences were found in depression symptoms across time, and by sex. At pre-season baseline, higher depression symptoms were significantly correlated with decreased scores on Visual Memory, Visual Motor Speed, and Total Symptom Score, and increased Reaction Time. A total of 27 concussed athletes were used in the concussion and depression analyses. No significant differences were found between depression symptoms pre-concussion and any of the post-concussion time intervals. At 1 week post-concussion, elevated depression symptoms were significantly correlated with slower Reaction Time and higher Total Symptom Scores at 1 week post-concussion, and increased Impulse Control and Total Symptom Scores at 3-5 months post-concussion. These results demonstrate the need to evaluate depression symptoms at pre-season baseline, across the athletic season, and post-concussion in collegiate student-athletes.
Temple University--Theses
Cheng, Tao. "Automated safety analysis of construction site activities using spatio-temporal data". Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47564.
Pełny tekst źródłaLai, Yuk Fo. "Spatial and temporal variations of carbon dioxide and methane fluxes measured by autochambers at the Mer Bleue bog". Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=110514.
Pełny tekst źródłaL'équilibre du carbone (C) net de l'écosystème et l'impact du forçage radiatif des tourbières dans le Nord sont largement régis par les échanges de dioxyde de carbone (CO2) et du méthane (CH4) entre l'atmosphère. Pour prédire les effets des perturbations sur les échanges C à la tourbière, les relations entre les flux de gaz et les corrélats environnementaux devraient être établies au niveau de la communauté végétale et microtopographique afin de saisir l'hétérogénéité spatiale de la tourbière. Dans cette recherche, un système de chambre de automatique est utilisé pour quantifier les flux de CO2 et de CH4 à une échelle de temps sous-quotidienne entre les trois communautés de plantes vasculaires à la tourbière ombrotrophe Mer Bleue. Les liens entre les échanges gazeux et les facteurs environnementaux et biotiques sont examinés dans le temps et l'espace.Dans des conditions très turbulentes, l'écoulement du CH4 et celui du CO2 de la nuit mesurés par les chambres automatiques avec une courte durée de déploiement ont été sous-estimés par 9-57% et 13-21% respectivement, en raison du vent soufflant sur la surface de la tourbe sèche et poreuse tel que témoigné par une réduction dans le gradient de concentration du CO2 dans l'espace poreux. En revanche, l'écoulement du CH4 et celui du CO2 de la nuit mesurés dans les conditions calmes ont été surestimées par environ 100%. Ces problèmes ont été résolus par allonger la durée de déploiement et par supprimer les données dans les 13 premières minutes lors du calcul des flux. Les communautés Eriophorum et Maianthemum/Ledum ont contribué à plus de la moitié des émissions totales du CH4 provenant de la tourbière, bien qu'ils ne couvrent que 30% de la superficie totale. La variabilité temporelle des flux du CH4 est corrélée (r > 0.4) avec la température de la tourbe, seulement si le niveau hydrostatique est inférieur à 20, 30 et 40 centimètres sous la surface de la tourbe respectivement pour les communautés Maianthemum/Ledum, Chamaedaphne et Eriophorum. Il existe des différences significatives entre les modèles globaux de photosynthèse et de respiration pour les trois communautés végétales. L'échange maximal net du CO2 dans l'écosystème explique bien les variations dans les moyennes saisonnières du flux CH4 pour l'Eriophorum et les sites de pelouse. La relation est plus faible si les sites buttes sont inclus. Les résultats de la corrélation croisée montrent un décalage de 9 à 12 heures entre le flux du CH4 et l'activité photosynthétique pour la communauté Eriophorum, mais un décalage beaucoup plus long, de 18 à 26 jours, pour la communauté Maianthemum/Ledum. Mes résultats soulignent l'importance de considérer séparément les communautés de plantes, qui ont des fonctionnalités différentes et sont dominées par des formes de croissance distinctes, dans la modélisation de l'échange du gaz carbonique (C) dans les tourbières ombrotrophes.
Spiegel, Stephan Verfasser], Sahin [Akademischer Betreuer] [Albayrak, Jürgen [Akademischer Betreuer] Kurths i Friedemann [Akademischer Betreuer] Mattern. "Time series distance measures : segmentation, classification, and clustering of temporal data / Stephan Spiegel. Gutachter: Sahin Albayrak ; Jürgen Kurths ; Friedemann Mattern. Betreuer: Sahin Albayrak". Berlin : Technische Universität Berlin, 2015. http://d-nb.info/1075547326/34.
Pełny tekst źródłaRosengard, Peninah S. 1970. "Relationship between measures related to the cochlear active mechanism and speech reception thresholds in backgrounds with and without spectral and/or temporal fluctuations". Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/28598.
Pełny tekst źródłaIncludes bibliographical references (p. 191-203).
The importance of the cochlear active mechanism in the reception of speech in different types of noise was explored. The perceptual effects of loudness recruitment, a consequence of loss of the active mechanism, were assessed in simulated-loss listeners using a multiband expansion algorithm that models abnormal cochlear linearity. While this algorithm, which derives the expansion characteristic from absolute hearing thresholds, can accurately simulate the mean speech intelligibility results of hearing-impaired listeners, its ability to simulate the performance of individual listeners is limited. Given the relationship between loudness perception and the active mechanism, deriving the expansion characteristic from estimates of cochlear compression should provide a more accurate model of an individual listener's impairment. Towards this aim, the reliability of two psychoacoustic methods used to estimate the magnitude of compression (growth of masking and temporal masking) was assessed. Results suggest that growth of masking is a more reliable measure of compression in listeners with both normal and impaired hearing. The relationship between the compressive characteristics of the auditory system and speech perception in complex acoustic backgrounds was also evaluated. The operational status of the active mechanism was assessed behaviorally using three independently derived measures: (1) slope ratio of off- and on-frequency growth of masking functions, (2) equivalent rectangular bandwidth of auditory filters, and (3) masker-phase masking differences. These measures were correlated with speech reception thresholds (SRTs) in backgrounds with and without spectral and/or temporal-modulations. The relationship between slope ratios, filter bandwidths, and the maximum
(cont.) SRT difference (SRT in steady noise minus SRT in temporally modulated, spectral gap noise) was significant. These results indicate that the ability to take advantage of momentary fluctuations in the amplitude or frequency spectrum of background noise requires an intact active mechanism. The speech reception performance of two hearing-impaired listeners was modeled using a customized version of the expansion algorithm. The algorithm was customized to an individual's impairment based on psychoacoustic measures used to evaluate the integrity of the active mechanism. The maximum SRT difference in the simulated-loss listeners more closely matched the results of their hearing-impaired counterparts, compared to SRTs measured using the original algorithm. These results provide further evidence of the importance of the active mechanism to the perception of speech in modulated noise.
by Peninah S. Rosengard.
Ph.D.
Spiegel, Stephan [Verfasser], Sahin [Akademischer Betreuer] Albayrak, Jürgen [Akademischer Betreuer] Kurths i Friedemann [Akademischer Betreuer] Mattern. "Time series distance measures : segmentation, classification, and clustering of temporal data / Stephan Spiegel. Gutachter: Sahin Albayrak ; Jürgen Kurths ; Friedemann Mattern. Betreuer: Sahin Albayrak". Berlin : Technische Universität Berlin, 2015. http://d-nb.info/1075547326/34.
Pełny tekst źródłaAyad, Omar. "The Effects of Ketamine on the Brain’s Spontaneous Activity as Measured by Temporal Variability and Scale-Free Properties. A Resting-State fMRI Study in Healthy Adults". Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34105.
Pełny tekst źródłaLee, Sang-Il. "Spatial association measures for an ESDA-GIS framework : developments, significance tests, and applications to spatio-temporal income dynamics of U.S. Labor Market Areas, 1969-1999 /". The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486572165276465.
Pełny tekst źródłaCameron, Emma. "A study of the normative psychometric properties of the ALFIE, a novel measure of accelerated long-term forgetting in temporal lobe epilepsy". Thesis, University of Lincoln, 2015. http://eprints.lincoln.ac.uk/22340/.
Pełny tekst źródłaBrito, Carlos Stein Naves de. "Medidas de dependência entre séries temporais: estudo comparativo, análise estatística e aplicações em neurociências". Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/95/95131/tde-12052013-133201/.
Pełny tekst źródłaMeasures of dependence between temporal series are studied in the context of revealing how different brain regions interact, through their application to electrophysiology. Based on the spectral and autoregressive model of time series, different measures are compared, including coherence and partial directed coherence, and a new measure is introduced, named partial directed transfer. The measures are analyzed through the properties of partialization, direct or indirect relations and temporal directionality, and their relation to quadratic correlation is shown. It results that among the presented measures, partial directed coherence and partial directed transfer reveal the highest number of desirable properties, being grounded on the concept of Granger causality. The asymptotic statistics for all measures are developed, including confidence intervals and null hypothesis testing, as well as their computational implementation. The application to simulated series and the analysis of electrophysiological data illustrate the comparative study and the applicability of the newly presented statistics.
Silva, Diego Furtado. "Large scale similarity-based time series mining". Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-07122017-161346/.
Pełny tekst źródłaSéries temporais são ubíquas no dia-a-dia do ser humano. Dados organizados no tempo são gerados em uma infinidade de domínios de aplicação, como medicina, biologia, economia e processamento de sinais. Devido ao grande interesse nesse tipo de dados, diversos métodos de mineração de dados temporais foram propostos nas últimas décadas. Muitos desses métodos possuem uma característica em comum: em seu núcleo, há uma função de (dis)similaridade utilizada para comparar as séries. Dynamic Time Warping (DTW) é indiscutivelmente a medida de distância mais relevante na análise de séries temporais. A principal dificuldade em se utilizar a DTW é seu alto custo computacional. Ao mesmo tempo, algumas tarefas de mineração de séries temporais, como descoberta de motifs, requerem um alto número de cálculos de distância. Essas tarefas despendem um grande tempo de execução, mesmo utilizando-se medidas de distância menos custosas, como a distância Euclidiana. Esta tese se concentra no desenvolvimento de algoritmos eficientes que permitem a análise de dados temporais em larga escala, utilizando métodos baseados em similaridade. As contribuições desta tese têm implicações em variadas tarefas de mineração de dados, como classificação, agrupamento e descoberta de padrões frequentes. Especificamente, as principais contribuições desta tese são: (i) um algoritmo para acelerar o cálculo exato da distância DTW e sua incorporação ao processo de busca por similaridade; (ii) um novo algoritmo baseado em DTW para prover invariância a prefixos e sufixos espúrios no cálculo da distância; (iii) uma representação de similaridade musical com implicações em diferentes tarefas de mineração de dados musicais e um algoritmo eficiente para computá-la; (iv) um método eficiente e anytime para encontrar motifs e discords baseado na medida DTW invariante a prefixos e sufixos.
Lopes, Christian Raposo. "Utilização de modelos estatísticos e machine learning para a previsão de vendas no sector do retalho : um estudo comparativo". Master's thesis, Instituto Superior de Economia e Gestão, 2019. http://hdl.handle.net/10400.5/19184.
Pełny tekst źródłaA previsão das necessidades futuras torna-se fundamental para o correto planeamento e operação das empresas de retalho. Ao nível organizacional, as previsões de vendas funcionam como parâmetros de entrada para as diversas áreas funcionais das empresas. Previsões pouco precisas ou ineficientes podem levar à realização de elevado ou baixo nível de inventário, afetando de forma direta a rentabilidade e a posição competitiva das organizações. Os dados de vendas provenientes deste sector, exibem fortes padrões de tendência e variação sazonal, colocando desafios ao desenvolvimento de modelos de previsão eficazes. O objetivo do trabalho assenta na comparação do desempenho da previsão entre os métodos ARIMA e MLP para o estudo de caso de uma empresa portuguesa do sector do retalho, tendo em consideração cinco grupos de produtos. Pretende-se também investigar qual o impacto do pré-processamento dos dados de entrada no rigor das previsões, e de que forma a utilização combinada dos métodos ARIMA e MLP aumenta a eficácia desta previsão. Os resultados apontam para um melhor desempenho do método MLP em comparação com o método ARIMA, quando utilizado o erro de previsão EAM. Foi ainda demonstrado que o pré-processamento dos dados impacta de forma positiva o desempenho da previsão, contribuindo para a redução significativa dos erros de previsão. Também se conclui que a previsão combinada das metodologias ARIMA e MLP produz resultados positivos para duas das cinco categorias de produtos analisadas, mostrando ser um conceito com elevado interesse para uma investigação futura.
Forecasting the future needs is one of the most important decisions for the effective planning and operation of the retail industries. At the organizational level, sales forecasts act as input parameters for the several functional areas of the business. Inaccurate or inefficient forecasts can lead to high or low stock levels, directly affecting the organizations profit and competitive position. Retail sales data often exhibit a strong trend pattern and seasonal variation, creating challenges for the development of effective forecast models. The objective of this study is to compare the forecast performance of ARIMA and MLP methods through a case study of a Portuguese retail company, considering five different groups of products. It is also intended to investigate the impact of the data preprocessing on the accuracy of forecasts, and if the combination of ARIMA and MLP methods can increase the effectiveness of this forecast. The results show that the forecasting performance, evaluated via EAM error, of the MLP method is better than the one obtained for ARIMA method. It has also been shown that data preprocessing positively impacts the forecasting performance, contributing to a significantly reduction of the forecasting errors. It is also concluded that the combined forecasting of the ARIMA and MLP methodologies yields positive results for two of the five groups of products, proving to be a concept of high interest for future research.
info:eu-repo/semantics/publishedVersion
Neto, Antonio Carlos Pacheco e. Silva. "Fidedignidade do sistema compreensivo do Rorschach: revisão e estudo da estabilidade temporal em adultos da cidade de São Paulo". Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/47/47131/tde-30112009-091310/.
Pełny tekst źródłaWe have evaluated the temporal stability of 59 Rorschach Comprehensive System (RCS) core variables. Our sample was composed of 32 nonpatients adults from the city of São Paulo, who volunteered to participate. They could have access to assessment results after the data collection. Participants were predominantly women (75%), single individuals (50%), from socioeconomic classes A (41%) and B (41%), with ages from 19 to 58 and 13 years of education on average. Twenty-five participants (78%) were employees from the university where the research was accomplished, two (6%) were students at the university and five (16%) were acquaintances of the employees. We used a test-retest design with a 3 to 4 months retest interval. All records were collected and codified by the author. A second rater independently coded 10 records from test and 10 records from retest, randomly selected. Interrater reliability was substantial (iota > .60) for most RCS variables. The mean test-retest correlation for the 59 core variables was r = .61, which indicates a moderate level of temporal stability. We also investigated directionality of proportions and categorical consistency. Between 44% and 70% of the participants were in the same interpretive category on test and retest. These results were lower than the original RCS research, but similar to the findings of a recent French study. Temporal stability for constellations was high, with at least 88% of the participants keeping the same negative or positive status on test and retest. Range restriction and skewness did not seem to explain the lower stability found in our sample, but the distributions of values for some variables, with a high frequency of participants with scores of zero and outliers, may have contributed. Task engagement in our sample apparently was similar to that found for the normative sample of adults from São Paulo, but lower than in the original RCS research. Lower task engagement may have contributed to the lower temporal stability. Factors of the testing situation seem to have played an important role in the results also. Brazilian users should take care in interpreting RCS results, mainly when task engagement is low (indicated by low R and high Lambda). More research with RCS in Brazil is needed, also to investigate procedures for obtaining higher task engagement, which may contribute to higher reliability and validity of test results.
Mesquita, Jaqueline Godoy. "Equações diferenciais funcionais em medida e equações dinâmicas funcionais impulsivas em escalas temporais". Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-06122012-100402/.
Pełny tekst źródłaThe aim of this work is to investigate and develop the theory of impulsive functional dynamic equations on time scales. We prove that these equations represent a special case of impulsive measure functional differential equations. Moreover, we present a relation between these equations and measure functional differential equations and, also, a correspondence between them and generalized ordinary differential equations. Also, we clarify the relation between measure functional differential equations and functional dynamic equations on time scales. We obtain results on the existence and uniqueness of solutions, continuous dependence on parameters, non-periodic and periodic averaging principles and stability results for all these types of equations. Moreover, we prove some properties concerning regulated functions and equiregulated sets in a Banach space which were essential to our purposes. The new results presented in this work are contained in 7 papers, two of which have already been published and one accepted. See [16], [32], [34], [36], [37], [38] and [84]
Morini, Matteo. "Tools for Understanding the Dynamics of Social Networks". Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEN075/document.
Pełny tekst źródłaThis thesis provides the reader with a compendium of applications of network theory; tailor-madetools suited for the purpose have been devised and implemented in a data-driven fashion. In the first part, a novel centrality metric, aptly named “bridgeness”, is presented, based on adecomposition of the standard betweenness centrality. One component, local connectivity, roughlycorresponding to the degree of a node, is set apart from the other, which evaluates longer-rangestructural properties. Indeed, the latter provides a measure of the relevance of each node in“bridging” weakly connected parts of a network; a prominent feature of the metric is its agnosticism with regard to the eventual ground truth community structure.A second application is aimed at describing dynamic features of temporal graphs which are apparent at the mesoscopic level. The dataset of choice includes 40 years of selected scientific publications.The appearance and evolution in time of a specific field of study (“wavelets”) is captured,discriminating persistent features from transient artifacts, which result from the intrinsically noisy community detection process, independently performed on successive static snapshots. The concept of “laminar stream”, on which the “complexity score” we seek to optimize is based, is introduced.In a similar vein, a network of Japanese investors has been constructed, based on a dataset which includes (indirect) information on co-owned overseas subsidiaries. A hotly debated issue in the field of industrial economics, the Miwa-Ramseyer hypothesis, has been conclusively shown to be false, at least in its strong form
Silveira, Vinicius Girardi da. "Uma nova forma de medir liquidez: construção e aplicação no mercado brasileiro". Universidade Federal de Santa Maria, 2017. http://repositorio.ufsm.br/handle/1/12331.
Pełny tekst źródłaO presente estudo teve o objetivo de construir uma medida de liquidez utilizando suas proxies e avaliar a sua aplicabilidade no contexto financeiro. Para tanto, este trabalho propôs a criação de uma medida de negociabilidade, a qual é um compendio de proxies de negociabilidade empregadas pela literatura. O procedimento estatístico utilizado para a obtenção desta medida foi a Análise Fatorial de Séries Temporais (TSFA), a qual é uma extensão da análise fatorial tradicional, trabalhando com séries de tempo ao invés de dados de corte. Os dados utilizados para a ilustração apresentada foram provenientes da negociação de 858 ações na BM&FBOVESPA no período de janeiro de 2000 até fevereiro de 2016. Como resultados, a medida construída para o mercado demonstrou-se consistente em relação às demais e capaz, em termos de correlação, de substituir as proxies utilizadas na sua construção. Além disso, apresentou estatísticas intermediárias em relação aos seus pares, o que sugere que a medida pode exibir resultados mais equilibrados. Quando analisada a aplicabilidade da medida em modelos de precificação com liquidez, observou-se que ela possui um poder explicativo similar as outras proxies utilizadas. Tem como principal diferencial a vantagem de reduzir as dimensões da liquidez, pois considera a informação contida em todas as proxies em apenas uma medida. Além disso, as descobertas sugeriram não haver diferenças de médias entre as medidas. Porém, quando observada a variância, a medida de negociabilidade se mostrou distinta das demais, apresentando estatísticas intermediárias. Neste sentido, é possível conjecturar que a medida de negociabilidade tende a apresentar resultados similares quando utilizada em modelos baseados em média, como é o caso das regressões. Por outro lado, pode ser mais vantajosa e precisa em modelos que considerem a variância.
Desmier, Elise. "Co-evolution pattern mining in dynamic attributed graphs". Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0071/document.
Pełny tekst źródłaThis thesis was conducted within the project ANR FOSTER, ``Spatio-Temporal Data Mining: application to the understanding and monitoring of erosion'' (ANR-2010-COSI-012-02, 2011-2014). In this context, we are interested in the modeling of spatio- temporal data in enriched graphs so that computation of patterns on such data can be used to formulate interesting hypotheses about phenomena to understand. Specifically, we are working on pattern mining in relational graphs (each vertex is uniquely identified), attributed (each vertex of the graph is described by numerical attributes) and dynamic (attribute values and relations between vertices may change over time). We propose a new pattern domain that has been called co-evolution patterns. These are trisets of vertices, times and signed attributes, i.e., attributes associated with a trend (increasing or decreasing). The interest of these patterns is to describe a subset of the data that has a specific behaviour and a priori interesting to conduct non-trivial analysis. For this purpose, we define two types of constraints, a constraint on the structure of the graph and a constraint on the co-evolution of the value worn by vertices attributes. To confirm the specificity of the pattern with regard to the rest of the data, we define three measures of density that tend to answer to three questions. How similar is the behaviour of the vertices outside the co-evolution pattern to the ones inside it? What is the behaviour of the pattern over time, does it appear suddenly? Does the vertices of the pattern behave similarly only on the attributes of the pattern or even outside? We propose the use of a hierarchy of attributes as an a priori knowledge of the user to obtain more general patterns and we adapt the set of constraints to the use of this hierarchy. Finally, to simplify the use of the algorithm by the user by reducing the number of thresholds to be set and to extract only all the most interesting patterns, we use the concept of ``skyline'' reintroduced recently in the domain of data mining. We propose three constraint-based algorithms, called MINTAG, H-MINTAG and Sky-H-MINTAG, that are complete to extract the set of all patterns that meet the different constraints. These algorithms are based on constraints, i.e., they use the anti-monotonicity and piecewise monotonicity/anti-monotonicity properties to prune the search space and make the computation feasible in practical contexts. To validate our method, we experiment on several sets of data (graphs) created from real-world data
Koch, Erwan. "Outils et modèles pour l'étude de quelques risques spatiaux et en réseaux : application aux extrêmes climatiques et à la contagion en finance". Thesis, Lyon 1, 2014. http://www.theses.fr/2014LYO10138/document.
Pełny tekst źródłaThis thesis aims at developing tools and models that are relevant for the study of some spatial risks and risks in networks. The thesis is divided into five chapters. The first one is a general introduction containing the state of the art related to each study as well as the main results. Chapter 2 develops a new multi-site precipitation generator. It is crucial to dispose of models able to produce statistically realistic precipitation series. Whereas previously introduced models in the literature deal with daily precipitation, we develop a hourly model. The latter involves only one equation and thus introduces dependence between occurrence and intensity; the aforementioned literature assumes that these processes are independent. Our model contains a common factor taking large scale atmospheric conditions into account and a multivariate autoregressive contagion term accounting for local propagation of rainfall. Despite its relative simplicity, this model shows an impressive ability to reproduce real intensities, lengths of dry periods as well as the spatial dependence structure. In Chapter 3, we propose an estimation method for max-stable processes, based on simulated likelihood techniques. Max-stable processes are ideally suited for the statistical modeling of spatial extremes but their inference is difficult. Indeed the multivariate density function is not available and thus standard likelihood-based estimation methods cannot be applied. Under appropriate assumptions, our estimator is efficient as both the temporal dimension and the number of simulation draws tend towards infinity. This approach by simulation can be used for many classes of max-stable processes and can provide better results than composite-based methods, especially in the case where only a few temporal observations are available and the spatial dependence is high
Acuña, Rogelio Grau. "On qualitative properties of generalized ODEs". Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/55/55135/tde-26102016-090644/.
Pełny tekst źródłaNeste trabalho, nosso objetivo e provar resultados sobre prolongamento de soluções, limitação uniforme de soluções, estabilidade uniforme e estabilidade uniforme assintótica (no sentido clássico de Lyapunov) para equações diferenciais em medida e para equações dinâmicas em escalas temporais. A fim de obter os nossos resultados, empregamos a teoria de EDOs generalizadas, uma vez que estas equações abrangem equações diferenciais em medida e equações dinâmicas em escalas temporais. Portanto, para obter nossos resultados, vamos começar por provar, os resultados que queremos para EDOs generalizadas abstratas. Em seguida, usando a correspondência entre as soluções de EDOs generalizadas e soluções de equações diferenciais em medida (ver [38]), estenderemos os resultados para estas ultimas equações. Depois disso, usando a correspondência entre as soluções de equações diferenciais em medida e as soluções de equações dinâmicas em escalas temporais (ver [21]), estenderemos todos os resultados para estas ultimas equações. Finalmente, investigamos EDOs generalizadas autônomas e mostramos que estas equações não aumentam a classe de EDOs autônomas clássicas, mesmo quando consideramos uma classe mais geral de funções nos lados direitos das equações. Os novos resultados encontrados estão contidos em [16, 17, 18, 19].
Fakhfakh, Nizar. "Détection et localisation tridimensionnelle par stéréovision d’objets en mouvement dans des environnements complexes : application aux passages à niveau". Thesis, Ecole centrale de Lille, 2011. http://www.theses.fr/2011ECLI0005/document.
Pełny tekst źródłaWithin the past years, railways undertakings became interested in the assessment of Level Crossings (LC) safety. We propose in this thesis an Automatic Video-Surveillance system (AVS) at LC for an automatic detection of specific events. The system allows automatically detecting and 3D localizing the presence of one or more obstacles which are motionless at the level crossing. Our research aims at developing an AVS using the passive stereo vision principles. The proposed imaging system uses two cameras to detect and localize any kind of object lying on a railway level crossing. The cameras are placed so that the dangerous zones are well (fully) monitored. The system supervises and estimates automatically the critical situations by detecting objects in the hazardous zone defined as the crossing zone of a railway line by a road or path. The AVS system is used to monitor dynamic scenes where interactions take place among objects of interest (people or vehicles). After a classical image grabbing and digitizing step, the processing is composed of the two following modules: moving and stationary objects detection and 3-D localization. The developed stereo matching algorithm stems from an inference principle based on belief propagation and energy minimization. It takes into account the advantages of local methods for reducing the complexity of the inference step achieved by the belief propagation technique which leads to an improvement in the quality of results. The motion detection module is considered as a constraint which allows improving and speeding up the 3D localization algorithm
Kinuthia, Wanyee. "“Accumulation by Dispossession” by the Global Extractive Industry: The Case of Canada". Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/30170.
Pełny tekst źródłaCheng, Shang-tse, i 程尚則. "The implementation of the obligation to protect the expression freedom in considering the necessity of undertaking certain temporary law-enforcing measures". Thesis, 2007. http://ndltd.ncl.edu.tw/handle/54861465255539198345.
Pełny tekst źródła世新大學
法律學研究所(含碩專班)
95
Human rights are always protected by the state in law making or regulation in the case. The function of expression freedom is to find oneself、search common opinions and watch out for the government .Public servants should pay much attention to the position of specific norm in the whole law world when they decided the necessity of undertaking certain temporary law-enforcing measures in order to avoid of making chilling-effect. In civil, courts have to prevent undue pre-restrain and after-punishment when they face temporary injunction petitions. In criminal, newsroom search with warrant having sufficient information to provide crime evidence insides is permitted, and the obscene speech will not be unknowable forever due to the occupation. In administration, the administration organs can take immediate measures to the symbolic speech not being tolerated by public is permissible, and the petitions to prevent enforcement of administration order to restrict commercial speech and access to broadcasting resources ought to be allowable when no one can make sure whether the loss will be covered or not.
Picado, Sara Raquel dos Santos Maurício. "A intervenção com crianças em risco num centro de acolhimento temporário e a intervenção precoce: que relação?" Master's thesis, 2013. http://hdl.handle.net/10400.26/9094.
Pełny tekst źródłaThe present study proposes to analyze the decision process of the professionals that work in a Temporary Shelter Center based on projects of childrens life under six years there institutionalized and in the relation of the promotion and protection measures proposed. It also seeks to understand the facilities and constraints that might exist in the implementation of an early intervention program on Temporary Shelter Center. The interest in conducting this study start from the need to deepen and investigate the link between the practices observed in Temporary Shelter Centers and practices advocated in early intervention. In this investigation participate six technicians employed in Temporary Shelter whose functions are as follows: a Technical Director, a psychologist, a Technique of Social Service, a kindergarten teacher and two Social Educators. The data collection will focus on the implementation of interviews and questionnaires to professionals mentioned above so that through their testimonies we be able to analyze the practical importance that early intervention takes in decisions related to projects of life of those children. It also presents two case studies showing what procedures were adopted since its admission to the institution and the different implementation of measures to promote and protect that were used since they are in the Temporaty Shelter Center. To achieve this work there was a fundamental need to create a theoretical background so that it was possible to enlarge the knowledge about this theme and in this way to be able to make the data analysis. The results of this study revealed that the professionals have some similar practices to those advocated early intervention, demonstrating that develop work taking into account the systemic theory, working with family and community resources, offering them diverse experiences, knowing that children are part of different scenarios immediate and wider contexts in which they live and develop.
"Multi-Variate Time Series Similarity Measures and Their Robustness Against Temporal Asynchrony". Master's thesis, 2015. http://hdl.handle.net/2286/R.I.36436.
Pełny tekst źródłaDissertation/Thesis
Masters Thesis Computer Science 2015
Santos, Ana Beatriz Pinto Vaz Fernandes dos. "O impacto fiscal do lay off simplificado em Portugal". Master's thesis, 2021. http://hdl.handle.net/10071/24810.
Pełny tekst źródłaOn March 11th 2020, the OMS declared the existence of a global pandemic, originated by the new coronavirus, which "forced" the Government to create several measures, quickly and effectively, to face this new reality and with the purpose of pacifying the devastating impact of this analogous situation. In this sense, measures were implemented at various levels, importing for this dissertation those created to support companies and their workers, thus trying to mitigate the effects of the business crisis and also the changes at the fiscal level. In the first case, in order to carry out the above-mentioned support, a simplified lay off was created which is reflected in the existing lay off regime provided in the Labour Code, which, despite the streamline, doesn’t stop of being so. It has, however, certain characteristics of its own, in particular at the level of the procedure making it faster and simpler, at least this was the government's intention. In the second case, the tax changes took place at many points in this matter, importing for the dissertation and, taking into account its subject, emphasizing the tax part, trying to understand its benefits or not for the interveners. The combination of these two measures will allow us to determine the fiscal impacts on the implementation of the simplified lay off for workers, for companies and also for the State, specifically for Social Security, and also whether this regime is as generous as it appears to be.
(9721622), Wei Siong Neo. "Covariation and Synchronicity of Sustained Attention Measures in Infancy". Thesis, 2020.
Znajdź pełny tekst źródłaSustained attention, the ability to direct and maintain attentional focus on tasks and stimuli, emerges during infancy and undergoes rapid development throughout early childhood. Abnormal patterns of sustained attention are implicated in several childhood psychological disorders. Improving our measurement of infant sustained attention may clarify how child psychopathology develops and inform targeted prevention and early intervention efforts. While several behavioral and psychophysiological measures index infant sustained attention, previous studies have employed these measures in isolation, focused on analyses at short timescales of milliseconds to a few seconds, and examined synchronous associations among these measures. Therefore, the associations and temporal relationships across multiple, concurrent behavioral and psychophysiological measures of infant sustained attention remain unclear, particularly at long timescales. The present study assessed sustained attention in 12-month-old infants using behavioral (looking), cardiac (heart rate), and neural (theta and alpha oscillations) measures to investigate two temporal aspects of infant sustained attention. First, we examined whether associations among infant sustained attention measures were similar or different across short (1-second) and long (10-second) timescales. Covariation analyses indicated largely similar association patterns among these measures across the two timescales. Second, we evaluated whether specific infant sustained attention measures temporally preceded other measures. Cross-correlation analyses broadly revealed that short-timescale measures exhibited asynchronous temporal relationships, such that looking behaviors preceded neural oscillations that in turn preceded cardiac responses. Our findings highlight the value of considering the temporal dimension when studying and measuring infant sustained attention. Additional multimodal research may yield greater insights into dynamic biobehavioral processes that underlie infant sustained attention and enhance clinical interventions aimed at promoting optimal outcomes for young children with abnormalities in sustained attention.
Zakout, Wael M. "Modeling spatio-temporal databases to measure the performance of the GPS satellite constellation". 1994. http://catalog.hathitrust.org/api/volumes/oclc/31514043.html.
Pełny tekst źródłaHuang, Ying-Zhang, i 黃盈彰. "Spectro-Temporal Modulations Based Objective Mandarin Speech Intelligibility Measure for Hearing-Impaired Patients". Thesis, 2016. http://ndltd.ncl.edu.tw/handle/yp73b8.
Pełny tekst źródła國立交通大學
電信工程研究所
104
In order to verify the performance of algorithms developed for hearing aids, we developed a measure that predicts the Mandarin speech intelligibility of the hearing impaired people. We constructed a model that simulates the cochlear of the hearing impaired to fit different patients. This model solves threshold elevation, loudness recruitment, and reduced frequency selectivity of hearing impaired. In order to predict speech intelligibility, many studies utilized the modulation spectral signal representation, which is obtained by an auditory-inspired filterbank analysis of the speech signal. In this study, a joint spectro-temporal auditory model was utilized to assess speech quality objectively. In this auditory model, the first stage is to simulate cochlear function of the spectrum estimation. The second stage is to simulate cortical function of the multi-dimensional spectrum analysis. In order to consider effecting speech intelligibility due to reduced frequency selectivity of hearing impaired, we developed a spectro-temporal modulations based non-intrusive intelligibility measure through referring to the construction of SRMR proposed by Tiago H. Falk. SRMR is a temporal modulation envelope based intelligibility measure. To validate our proposed measure, the performance of the proposed measure is compared to the SRMR intelligibility measurement algorithms under several noisy conditions. We can utilize the proposed measure to assess the performance of speech enhancement algorithms, and develop a speech enhancement algorithm in the future.
Bardall, Gabrielle Simon. "Voices, votes and violence : essays on select dynamics of electoral authoritarian regimes". Thèse, 2016. http://hdl.handle.net/1866/18513.
Pełny tekst źródła“Voices, Votes and Violence: Essays on Select Dynamics of Electoral Authoritarian Regimes” concerns the expression of commonly excluded voices under electoral authoritarian (EA) regimes, from the challenges of institutionalized processes (specifically, elections and voting) to rationalizations for extra-institutional behaviors (notably political violence). The essays are presented in two parts. The first two essays in Part I concern frameworks for studying incumbent and opposition behaviors in semi-authoritarian states. The three essays in Part II examine a specific sub-field of EA regime dynamics: political participation of women. Each chapter provides findings as summarized below. Chapter 1 explores methodological challenges in studying semi-authoritarian regimes (such as EA) by critically engaging with a leading framework of analysis in the field. An independent replication of Levistky and Way’s 2010 classification model of competitive authoritarianism (CA) reveals coding discrepancies in the authors’ case selection which impact the broader theory of CA regimes and have methodological implications for the comparative study of hybrid regimes in general. Chapter 2 examines opposition party behavior under EA regimes. I hypothesize that EA oppositions’ electoral and regime objectives (“dual games”) align under conditions where there is relative certainty of outcomes but diverge where either regime or electoral uncertainty is greater, resulting in four identifiable behavior types. Testing the theory on 55 elections in 29 sub-Saharan African states, I demonstrate that the four behavior types are functions of the degree of state repression and the level of organizational capacity of the opposition. Chapter 3 reveals and defines the gendered nature of electoral violence (a common feature of EA regimes). An original database of over 2000 incidents of election violence in six countries as well as fieldwork from over fifty countries reveal the existence of significant gender-differentiation in the manifestation of election violence as well as the presence of a previously unrecognized phenomenon, gender-based election violence (GBEV). The chapter introduces definitions, a taxonomy and typology of both forms of violence. Chapter 4 delves deeper into the topic by examining the complex relationship between information and communication technologies and gendered election violence. The notions of gender-differentiated and gender-motivated violence are extended to political violence in this chapter. Information and communication technologies are found to both facilitate gendered forms of political violence as well as empower resistance and violence mitigation. The final chapter provides the solution to a longstanding puzzle of political exclusion in EA (and other) regimes by demonstrating the complementarity of specific forms of temporary special measures (TSMs) in electoral systems based on single-member districts (SMDs). The chapter presents a five-part classification of TSM options in SMDs, including an original interpretation of “Alternate Thresholds”. Analyzing the five TSM types through country case studies, Chapter 5 illustrated that discrepancies in the adoption of quotas between electoral systems are the result a knowledge gap rather than intrinsic traits of electoral systems, as previously assumed.
Kuo, Su-Ching, i 郭素卿. "Temporal and Spatial Variations in Aerosol Acidity and Measured Water Content in the Southern Taiwan". Thesis, 2003. http://ndltd.ncl.edu.tw/handle/92680647178135745071.
Pełny tekst źródła嘉南藥理科技大學
環境工程衛生系碩士班
91
The chemical composition, water content, and acidity of atmospheric PM2.5 aerosols in a Tainan urban and coastal area were evaluated in January (winter) and April (spring) of 2002. Controlling relative humidity (RH) at 40±5 %, it was found that NH4+, SO4-2 and NO3- were the dominant water-soluble ionic species in both winter and spring. These accounted for an average 44.6% and 36.1% of PM2.5 mass at the urban site in winter and spring, respectively, and 44.6% and 38% at the coastal site, demonstrating that secondary aerosols were a larger part of the PM2.5 mass in winter at both sites. The average neutralization ratio (NR) value of PM2.5 in the Tainan urban area was neutral (NR is 1.0±0.2) in winter, and alkaline (NR is 2.5±0.4) in spring. The average value in the Tainan coastal area was likewise neutral in winter and alkaline in spring. The reason for this is that Tainan coastal areas are primarily agricultural and aquafarm areas with high-density cultivation and high aeration, and hence high levels of ammonium nitrate and total nitrogen, and aquatic animal wastes. It was found that a SOR (sulfur oxidation ratio) value of >0.4 and a NOR ( nitrogen oxidation ratio) value of >0.15 represented a relatively strong photochemical reaction, low relative humidity, and high O3 concentration. Additionally, strong wind speeds led to a high SOR value, but weak wind speeds led to a high NOR value. This demonstrates that the gaseous S species (SO2) that form sulfate aerosols are transported from far away, whereas the N species that form gaseous NO2 and subsequently NO3- are of local origin (due to local traffic pollution emissions). This study also succeeded in establishing DRIFT spectra for calibration of aerosol functional group loading and a quick, nondestructive method to determine NH4+, SO4-2 and NO3- content in PM2.5 aerosols. The DRIFT spectrum showed SO4-2 absorptive wavelength changes followed by SO3-2 changes, and indirectly proves that SO2 converts to SO3-2, which then converts to SO4-2. It also shows that the main associated types of secondary aerosols in southern Taiwan are (NH4)2SO4, NH4NO3 and NH4Cl. The water content (mass concentration) of atmospheric PM2.5 aerosols controlled at RH 60±2% was 31.3±8.4% and 38.0±7.2% at the coastal site in the daytime and nighttime, respectively, and 25.76±16.9% and 24.3±21.5% at the urban site. The water content was clearly higher in the coastal area in both winter and spring. Apart from urban winter, when daytime water content was slightly higher than nighttime, nighttime values were higher than daytime. Controlling RH at 60±2%, the measured water content was clearly higher than and different from values calculated using the water ascending model (Lee et al., 1998). It may be that the water absorptive properties of soluble organic carbons in aerosols are not taken into consideration in this model.
Guerreiro, Gabriel Correia. "O Mercado de Bitcoins/USD. Caracterização Estatística e Inter-Relação Temporal". Master's thesis, 2017. http://hdl.handle.net/10316/82472.
Pełny tekst źródłaThe main objective of this project is to analyze the exchange rates bitcoins/USD offered by several exchange houses. This analysis is performed through the description of the statistical properties of several time series and through the study of their inter-relationships. It was considered the use of feedback measures to infer the direction of the information flow between the markets. The database is composed by four exchange houses that together form a market share of about 60% of the overall bitcoins/USD market, for the period 11/15/2013 to 9/15/2016. For the three main exchange houses, Bitfinex, Bitstamp and BTC-e, about between 82% and 97% of the transmission of information takes place in the first two hours, after this interval the largest part of the information seems to be transmitted from the most relevant market in terms of transaction volume. The Itbit, while smaller exchange house and therefore less representative, has a purely marginal role in this information process. Although it can’t be verified empirically a linear relationship between the transmission of information and the volatility or volume of transaction, it can be concluded that the Bitfinex, the leader exchange house, with a market share of 43.63%, is also the one with the most important role in terms of price discovery in the bitcoins/USD market. The choice of this exchange house leader as a source of information may become a comparative advantage to the investor that wants to take positions in this market.
O principal objetivo deste trabalho de projeto é analisar as taxas de câmbio bitcoins /USD oferecidas por diversas casas de câmbio. Esta análise é realizada através da descrição das propriedades estatísticas de várias séries temporais e através do estudo das suas inter-relações. Foi considerado o recurso a medidas de feedback com o intuito de inferir qual o sentido do fluxo de informação entre os mercados. A base de dados é composta por quatro casas de câmbio que, no seu conjunto, formam uma quota de cerca de 60% do mercado total bitcoins/USD, para o período de 15/11/2013 a 15/09/2016. Para as três principais casas de câmbio, Bitfinex, Bitstamp e BTC-e, cerca de 82% a 97% da transmissão de informação ocorre logo nas primeiras duas horas, após esse intervalo de tempo a maior parte da informação parece ser transmitida pelo mercado mais relevante em termos de volume de transação. A Itbit, enquanto casa de câmbio de menor dimensão e, portanto, menos representativa, tem um papel meramente marginal no processo de transmissão de informação. Apesar de não se verificar empiricamente uma relação linear entre a transmissão de informação e a volatilidade ou o volume de transação, pode concluir-se que a Bitfinex, a casa de câmbio líder, com uma quota de mercado de 43,63%, é também aquela com o papel mais importante na descoberta do preço bitcoins/USD. A escolha desta casa de câmbio líder como fonte de informação pode efetivamente trazer vantagens comparativas para os investidores que queiram posicionar-se neste mercado.
Depatie-Pelletier, Eugénie. "Labour Migration Program Declared a "Modern Form of Slavery" under Constitutional Review : Employer-Tying Measure's Impact vs Mythical "Harm Reduction" Policies". Thèse, 2018. http://hdl.handle.net/1866/22564.
Pełny tekst źródła