Дисертації: "Temporal origin"

1

Anderson, Elizabeth. "Epilepsy of the temporal lobe origin : cognitive and psychosocial sequelae." Thesis, University of York, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.261087.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

2

Lantz, Göran. "Source localisation of epileptiform activity in epilepsy of temporal lobe origin." Lund : Dept. of Clinical Neuroscience, Division of Clinical Neurophysiology, Lund University Hospital, 1997. http://books.google.com/books?id=V8xrAAAAMAAJ.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

3

Walsh, Kathleen. "Drosophila Embryonic Type II Neuroblasts: Origin, Temporal Patterning and Contribution to the Adult Central Complex." Thesis, University of Oregon, 2018. http://hdl.handle.net/1794/23150.

Повний текст джерела

Анотація:

The large numbers of neurons that comprise the adult brain display an immense diversity. Repeated divisions of a relatively small pool of neural stem cells generate this neuronal diversity during development. To increase progress towards medical treatments for neurodegenerative diseases, it is of interest to understand both how neural stem cells generate the assortment of neurons and how these neurons come together to form a functional brain. Brain assembly occurs sequentially across time with early events laying the foundation for later events. Drosophila neural stem cells, neuroblasts (NBs), are an excellent model for investigating how neural diversity is generated and what roles early and late born neurons have in shaping the stereotypical adult brain structure. Generation of neural diversity, begins with specifying the diverse population of stem cells, called spatial patterning, and continues with diversifying neurons made from the diverse stem cells, called temporal patterning. Drosophila NBs exhibit both spatial and temporal patterning. Drosophila NBs have three types of division modes: type 0, type I and type II. Type II NBs expand the number of neurons made with progeny that exhibit a transit-amplifying division pattern, similar to that of mammalian outer subventricular zone (OSVZ) progenitors. Additionally, type II NBs exhibit temporal patterning across both the NB and their progeny to generate a large diversity of neurons that populate a conserved region of the brain responsible for many sensory and motor functions, called the central complex. Type II NBs have only been identified and studied during later stages in development, with nothing known about their origin or early divisions. In this dissertation, I describe the early lineages of the type II NBs within the Drosophila embryo. I show that type II NBs and lineages originate early in development, exhibit temporal patterning across both the NB and transit-amplifying progeny, and produce neurons that survive into the adult brain to innervate and potentially serve as a foundation within the adult central complex. Additionally, I explain how live imaging of the developing Drosophila brain can answer questions not easily addressed through other methods.

Стилі APA, Harvard, Vancouver, ISO та ін.

4

Tünnermann, Jan [Verfasser]. "On the origin of visual temporal-order perception by means of attentional selection / Jan Tünnermann." Paderborn : Universitätsbibliothek, 2016. http://d-nb.info/1113106387/34.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

5

Zhou, Yang. "Multi-Source Large Scale Bike Demand Prediction." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1703413/.

Повний текст джерела

Анотація:

Current works of bike demand prediction mainly focus on cluster level and perform poorly on predicting demands of a single station. In the first task, we introduce a contextual based bike demand prediction model, which predicts bike demands for per station by combining spatio-temporal network and environment contexts synergistically. Furthermore, since people's movement information is an important factor, which influences the bike demands of each station. To have a better understanding of people's movements, we need to analyze the relationship between different places. In the second task, we propose an origin-destination model to learn place representations by using large scale movement data. Then based on the people's movement information, we incorporate the place embedding into our bike demand prediction model, which is built by using multi-source large scale datasets: New York Citi bike data, New York taxi trip records, and New York POI data. Finally, as deep learning methods have been successfully applied to many fields such as image recognition and natural language processing, it inspires us to incorporate the complex deep learning method into the bike demand prediction problem. So in this task, we propose a deep spatial-temporal (DST) model, which contains three major components: spatial dependencies, temporal dependencies, and external influence. Experiments on the NYC Citi Bike system show the effectiveness and efficiency of our model when compared with the state-of-the-art methods.

Стилі APA, Harvard, Vancouver, ISO та ін.

6

Wearmouth, Curran. "Spatial, Temporal and Physical Origin of Matrix-Poor to Matrix-Rich Sandstones, Neoproterozoic, Windermere Supergroup, British Columbia, Canada." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37567.

Повний текст джерела

Анотація:

At the Castle Creek study area a remarkably well exposed section in the Isaac Formation, Windermere Supergroup, was measured to document potential lateral and vertical changes in facies. Here, a consistent lateral succession of facies was observed consisting of matrix-poor sandstone to clayey sandstone to bipartite bed to sandy claystone, collectively overlain by a thin-bedded turbidite and mudstone cap. These changes are interpreted to reflect particle settling in a negligibly-sheared sand-mud suspension following detachment from the margins of an avulsion jet. Vertically, similar facies stack to form packages 2-7 beds thick implying temporary stabilization of jet-margin dynamics. At a larger scale facies stack to form three stratal assemblages. SA-1: intercalated matrix-rich and matrix-poor strata and SA-2: matrix-rich strata stack vertically and laterally but then are sharply overlain everywhere by classical turbidites of SA-3, indicating a dramatic change from deposition immediately downflow of an avulsion node to conventional levee deposition.

Стилі APA, Harvard, Vancouver, ISO та ін.

7

Mortessagne, Pierre. "Characterization of the different populations of granular neurons in the dentate gyrus of the hippocampus : from morphology to function." Electronic Thesis or Diss., Bordeaux, 2024. http://www.theses.fr/2024BORD0402.

Повний текст джерела

Анотація:

Dans le gyrus denté (GD) de la formation hippocampique, la génération des neurones granulaires (NGs) commence vers la fin de l'embryogenèse, atteint un pic autour de la naissance, puis se poursuit à un faible niveau à l'âge adulte. Cette neurogénèse continue fait du GD une structure cérébrale unique, composée de NGs d'origines temporelles distinctes qui forment des sous-populations potentiellement dotées de caractéristiques anatomiques et fonctionnelles spécifiques dans l'hippocampe. Étonnamment, cette hypothèse a reçu peu d'attention. Dans ce contexte, ce travail de thèse a visé à élucider les caractéristiques morphologiques, électrophysiologiques et comportementales des sous-populations de NGs en fonction de leur origine temporelle. S’appuyant sur des découvertes antérieures de notre équipe qui avaient mis en évidence des différences dendritiques entre ces populations, nous avons centré nos investigations sur leurs axones, appelés fibres moussues. En utilisant des stratégies de marquage épars — l'électroporation pour cibler les NGs nés durant la période embryonnaire(E14.5) et néonatale (P0), ainsi que des injections rétrovirales pour les NGs nés à l’adolescence(P21) et à l’âge adulte (P84) — nous avons mis en évidence que les NGs générés à des périodes plus tardives développent des boutons plus larges avec davantage de filopodes et présentent un segment initial axonal plus court. De plus, en utilisant les lignées de souris Osteocalcin-Cre etAscl1CreERT2 pour marquer de larges cohortes de NGs générés durant la période embryonnaire et à l’âge adulte, respectivement, nous avons observé que les neurones nés précocement projettent davantage vers le CA2 comparativement aux neurones générés plus tardivement au cours de la vie. Suite à ces découvertes, nous avons étudié les caractéristiques fonctionnelles des NGs d’origines temporelles différentes, au niveau électrophysiologique et comportemental.Les études électrophysiologiques ont révélé que les NGs nés en période néonatale partagent des propriétés intrinsèques similaires à celles des NGs nés en période adulte, mais possèdent une transmission basale plus élevée, reflétant potentiellement un nombre plus important de sites actifs. Enfin, nous avons examiné le rôle des NGs nés en période embryonnaire dans le comportement de type social et montré qu’une inhibition aiguë de ces neurones retardait l’expression de la préférence sociale. Cependant, ces données fonctionnelles restent préliminaires et nécessitent des investigations supplémentaires.En conclusion, ce travail de thèse met en évidence l'impact significatif de l'origine temporelle des NGs sur leurs caractéristiques anatomiques et potentiellement fonctionnelles, soulignant l’importance de prendre en compte l’origine temporelle des NGs dans toute étude s’intéressant à l’aspect structurel ou fonctionnel du DG
In the dentate gyrus (DG) of the hippocampus, the generation of dentate granule neurons(DGNs) starts during late embryogenesis, peaks around birth and continues at low levels during adulthood. This continuous neurogenesis makes the DG a unique structure, composed of DGNs from distinct temporal origins, which form subpopulations potentially bearing unique anatomical characteristics and functional roles in hippocampal physiology. Surprisingly, this hypothesis has received limited attention. In this context, our research aimed to elucidate the morphological, electrophysiological, and behavioral characteristics of DGNs subpopulations based on their temporal origin. Building on prior findings from our team that high lighted dendritic differences between these populations, we focused on examining the features of their axons, called mossy fibers (MFs). Using sparse labeling strategies — electroporation to targetembryonically-born (E14.5) and neonatally-born (P0) DGNs, and retroviral injections foradolescent-born (P21) and adult-born (P84) DGNs — we uncovered that DGNs generated laterin life develop larger MF boutons with more filopodia, and exhibit a shorter axon initialsegment. Additionally, using the Osteocalcin-Cre and Ascl1CreERT2 mouse lines to selectivelylabel large cohorts of embryonically-born and adult-born DGNs, respectively, we found thatearlier-born neurons project further onto the CA2 compared to later-born neurons. Following these morphological findings, we further investigated the functional characteristics of temporally distinct DGNs at both the electrophysiological and behavioral levels. The electrophysiological studies revealed similar intrinsic properties between neonatally- and adult born DGNs, and higher basal transmission in neonatally-born DGNs, potentially reflecting alarger number of active sites. Finally, we examined the role of embryonic-born DGNs in socialbehavior, and showed that acute inhibition of these neurons delayed the expression of social preference. However, these functional data remain preliminary and need further investigation.Altogether, this PhD work highlights the significant impact of the birthdate of DGNs on their anatomical and potentially functional characteristics, and emphasizes the importance of considering their precise temporal origin in any structural or functional analysis of the DG

Стилі APA, Harvard, Vancouver, ISO та ін.

8

Webb, Dominic-Luc. "Temporal monitoring of intracellular Ca²⁺ signaling and origins of Ca²⁺ oscillations /." Stockholm, 2006. http://diss.kib.ki.se/2006/91-7140-741-3/.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

9

Singh, Shatrunjai P. "Quantitative analysis on the origins of morphologically abnormal cells in temporal lobe epilepsy." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1446547280.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

10

Alamo, Salazar Daniela Alejandra, and Escurra Gabriela Teresa Gerpe. "La empresas de trabajo temporal en el derecho comparado." Tesis, Universidad de Chile, 2006. http://www.repositorio.uchile.cl/handle/2250/107791.

Повний текст джерела

Анотація:

Memoria (licenciado en ciencias jurídicas y sociales)
Las Empresas de Trabajo Temporal, son aquellas entidades de carácter económico dedicados a la actividad profesional de suministro de trabajadores a otras empresas, con el objeto de satisfacer las necesidades urgentes y temporales de mano de obra, que por diferentes situaciones carecen dichas empresas, y las cuales no quieren, por diversas razones, contratar personalmente dicha mano de obra. Existen numerosos países en que operan estas empresas, siendo los pioneros en este rubro los países europeos, para posteriormente trasladarse a Latinoamérica. Sin embargo, existen grandes y variadas diferencias entre ellos, toda vez que solo algunos las admiten como instrumentos legítimos de suministros de mano de obra, regulando la relación de las empresas con los trabajadores temporales, estableciendo un régimen especifico para sus actividades y por el contrario hay otros que se niegan a aceptarlas, siendo prohibida la practica de cualquier tipo de cesión de trabajadores.

Стилі APA, Harvard, Vancouver, ISO та ін.

11

Atteia, Jean Luc. "Profils temporels et origine des sursauts gamma : l'apport du programme signe." Toulouse 3, 1987. http://www.theses.fr/1987TOU30283.

Повний текст джерела

Анотація:

A partir de donnees observationnelles collectees pendant le programme signe, on etudie certaines caracteristiques de la population des sources de sursaut gamma: la structure temporelle des evenements et la distribution spatiale des sources localisees. En outre 2 etudes particulieres ont pour sujet: la recherche de sursauts optiques associes aux sursauts gamma et la localisation d'une source repetitive extraordinaire

Стилі APA, Harvard, Vancouver, ISO та ін.

12

Atteia, Jean-Luc. "Profils temporels et origine des sursauts gamma l'apport du programme signe." Grenoble : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37593730n.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

13

Robinson, Rob Mary. "Temporal bone variation in Australian aborigines and other modern populations : implications for the origins of modern humans." Thesis, University College London (University of London), 1995. http://discovery.ucl.ac.uk/10041867/.

Повний текст джерела

Анотація:

The origin of the Australian aborigine has important bearing on the origin(s) of all modern humans. Multiregionalists cite the apparent morphological similarities between modern Australians and S. E. Asian Homo erectus in support of the view that modern humans in Africa, Europe and Asia arose from mid-Pleistocene forebears in their respective regions. The temporal bone is unique in Asian H. erectus. This study focuses on temporal bone variation in 11 modern human populations, and investigates (i) interdependence among temporal bone variables and between temporal and non-temporal variables, and (ii) whether Australians are distinctive in temporal bone morphology from other modern populations in a way which supports the claim of continuity with S.E. Asian H.erectus. The main findings from the univariate and multivariate analyses undertaken in this study are as follows: Modern populations can be discriminated by temporal variables alone. This discrimination is almost as effective as that based on a wider selection of cranial variables and is not improved by size-adjustment of the temporal variables. Among the temporal features found to be characteristic of Australians, a long, thick, acutely angled mastoid contributes most to their discrimination from all other modern populations; a thick tympanic lateral rim is also important in distinguishing them from all but Eskimos. Of the modern populations considered, Australians have one of the most distinctive temporal bones and show greater similarity to Africans than to Europeans (Poundbury) or Chinese. Only Eskimo temporal features, however, can be regarded as remarkably different from those of all other modern populations. Australians show greater resemblance in the temporal region to other modern humans than to Asian H.erectus, and in no one temporal feature are they found to be the most similar of modern human populations to H.erectus. These findings offer no support for the Multiregional interpretation of the evolution of anatomically modern humans.

Стилі APA, Harvard, Vancouver, ISO та ін.

14

Costafreda, Aumedes Sergi. "Spatio-temporal analysis of human-caused fire occurrence patterns in Spain." Doctoral thesis, Universitat de Lleida, 2017. http://hdl.handle.net/10803/400822.

Повний текст джерела

Анотація:

L'objectiu principal d’aquesta tesi és identificar, analitzar i caracteritzar els patrons espacio-temporals dels incendis d'origen humà a Espanya. Per aquest fi, s'analitzen els factors que determinen la quantitat de recursos empleats en l'extinció d'incendis forestals i els patrons que afecten la seva ocurrència. El nombre de mitjans d'extinció augmenta en els incendis grans i de copa, i disminueixen en períodes amb multiples incendis, però aquest comportament varia per regions. Per a minimitzar i controlar els seus efectes, s'ha analitzat models predictius de la seva ocurrència, establint semblances i diferencies del seu estat de l'art a nivell mundial. A nivell de paisatge, la major incidència d'incendis està associada a àrees amb alta diversitat d'usos del sòl, amb tessel•les compactes i perímetres curts. Els incendis es troben agregats en estructures espai-temps màximes al voltant de 4 km i 6 mesos, però depenen de la temperatura, precipitació i presència humana.
El objetivo principal de esta tesis es identificar, analizar y caracterizar los patrones espacio-temporales de los incendios de origen humano en España. Para este fin, se analizan los factores que determinan la cantidad de recursos empleados en la extinción de incendios forestales y los patrones que afectan su ocurrencia. El número de medios de extinción aumenta en los incendios grandes y de copa, y decrecen en períodos con múltiples incendios, aunque este comportamiento cambia por regiones. Para minimizar y controlar sus efectos, se ha analizado los modelos predictivos de su ocurrencia, estableciendo semejanzas y diferencias de su estado del arte a nivel mundial. A nivel de paisaje, la mayor incidencia de incendios está asociada a áreas con alta diversidad de usos del suelo, con teselas compactas y perímetros cortos. Los incendios se encuentran agregados en estructuras espacio-tiempo máximas alrededor de 4 km y 6 meses, pero dependen de la temperatura, la precipitación y la presencia humana.
The main objective of this thesis is to identify, analyze and characterize the spatio-temporal patterns of the human-caused fires in Spain. For this purpose, we have analyzed the factors that determine the amount of resources deployed in extinguishing fires and the patterns of wildfire occurrence. The number of deployed resources increases in large and crown fires, and decreases in multiple-fire days, but although this behavior changes by regions. To minimize and control their effects, I analyzed the predictive models found in bibliography, establishing similarities and differences of their occurrence worldwide. In terms of landscape patterns, the highest human-caused fire occurrence is linked to diverse land uses, compact patches and short perimeters. Fires are aggregated at maximum space-time structures around 4 km and 6 months, but depends on temperature, precipitation and human presence.

Стилі APA, Harvard, Vancouver, ISO та ін.

15

Sjöberg, Oskar. "The Origin of Streams : Stream cartography in Swiss pre alpine headwater." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-277377.

Повний текст джерела

Анотація:

Temporary streams have received undeservedly little scientific attention and as a result their role in hydrological, biogeochemical and ecological processes is not yet fully understood. The ultimate goal of the research was to gain a better understanding of the temporary stream network and the processes that control it and determine how the active and connected stream length change with catchment wetness conditions to find simple methods to map seasonal and event-based changes in temporary flowing stream networks. Streams, springs and wetlands of four relatively small headwater catchments (11.7 – 25.3 km2) and one wetland in the steep and remote Zwäckentobel catchment in Alptal, canton Schwyz (Switzerland), were mapped and stream segments were classified by flow type during different weather conditions using direct observations. The mapping was performed by an elite orienteer with mapping experience. The variation in streamflow was analysed and related to the catchment wetness and topography using the TWI-values and the upslope accumulated area of the stream segments. As the catchments wetted up in response to fall rainfall events after a dry summer the flowing stream density increased up to five times and the connected stream density increased up to six times with a 150-fold increase in discharge. Also the number of flowing stream heads increased up to ten times. The best description of the pattern of stream expansion is a combination of the variable source area and the element threshold concepts, where surface topography, particularly TWI (Topographic Wetness Index) and upslope accumulated area (A), and local storage areas controls where streamflow is initiated and how flow in different stream segments connects. Streams in the Alptal show a seasonally bottom up or disjointed connection pattern. Mapping the temporary streams in steep and remote watersheds as a function of hydrological conditions is not an easy task. It is however necessary in order to fully understand where water is flowing or not. A combination of field observations with monitoring equipment can facilitate this extensive work by providing a more detailed temporal resolution.

Стилі APA, Harvard, Vancouver, ISO та ін.

16

Orilia, Francesco. "Analisi spazio-temporale degli effetti di stress di origine antropica sull’ecosistema intertidale di spiagge sabbiose nell’alto Adriatico." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/3827/.

Повний текст джерела

Анотація:

Il presente lavoro di tesi si inserisce all’interno del progetto Europeo Theseus (Innovative technologies for European coasts in a changing climate), volto a fornire una metodologia integrata per la pianificazione sostenibile di strategie di difesa per la gestione dell’erosione costiera e delle inondazioni che tengano in conto non solo gli aspetti tecnici ma anche quelli sociali, economici e ambientali/ecologici. L'area oggetto di studio di questo elaborato di tesi è la zona costiera della Regione Emilia Romagna, costituita unicamente da spiagge sabbiose. In particolare si è focalizzata l’attenzione sulla zona intertidale, in quanto, essendo l’ambiente di transizione tra l’ambiente marino e quello terrestre può fornire indicazioni su fenomeni erosivi di una spiaggia e cambiamenti del livello del mare, unitamente alla risposta agli interventi antropici. Gli obiettivi della tesi sono sostanzialmente tre: un primo obiettivo è confrontare ecosistemi di spiagge dove sono presenti strutture di difesa costiera rispetto a spiagge che ne erano invece prive. Il secondo obiettivo è valutare l’impatto provocato sugli ecosistemi di spiaggia dall’attività stagionale del “bulldozing” e in ultimo proporre un sistema esperto di nuova concezione in grado di prevedere statisticamente la risposta delle comunità bentoniche a diversi tipi di interventi antropici. A tal fine è stato pianificato un disegno di campionamento dove sono stati indagati tre siti differenti per morfologia e impatto antropico: Cesenatico (barriere e pratica bulldozing), Cervia, dissipativa e non soggetta a erosione (assenza di barriere e ma con pratica del bulldozing) e Lido di Dante, tendenzialmente soggetta a erosione (senza barriere e senza pratica del bulldozing). Il campionamento è stato effettuato in 4 tempi (due prima del “bulldozing” e due dopo) nell’arco di 2 anni. In ciascun sito e tempo sono stati campionati 3 transetti perpendicolari alla linea di costa, e per ogni transetto sono stati individuati tre punti relativi ad alta, media e bassa marea. Per ogni variabile considerata sono stati prelevati totale di 216 campioni. Io personalmente ho analizzato i campioni dell’ultima campagna di campionamento, ma ho analizzato l’insieme dei dati. Sono state considerate variabili relative ai popolamenti macrobentonici quali dati di abbondanza, numero di taxa e indice di diversità di Shannon e alcune variabili abiotiche descrittive delle caratteristiche morfologiche dell’area intertidale quali granulometria (mediana, classazione e asimmetria), detrito conchigliare, contenuto di materia organica (TOM), pendenza e lunghezza della zona intertidale, esposizione delle spiagge e indici morfodinamici. L'elaborazione dei dati è stata effettuata mediante tecniche di analisi univariate e multivariate sia sui dati biotici che sulle variabili ambientali, “descrittori dell’habitat”, allo scopo di mettere in luce le interazioni tra le variabili ambientali e le dinamiche dei popolamenti macrobentonici. L’insieme dei risultati delle analisi univariate e multivariate sia dei descrittori ambientali che di quelli biotici, hanno evidenziato, come la risposta delle variabili considerate sia complessa e non lineare. Nonostante non sia stato possibile evidenziare chiari pattern di interazione fra “protezione” e “bulldozing”, sono comunque emerse delle chiare differenze fra i tre siti indagati sia per quanto riguarda le variabili “descrittori dell’habitat” che quelle relative alla struttura dei popolamenti. In risposta a quanto richiesto in contesto water framework directive e in maniera funzionale all’elevate complessità del sistema intertidale è stato proposto un sistema esperto basato su approccio congiunto fuzzy bayesiano (già utilizzato con altre modalità all’interno del progetto Theseus). Con il sistema esperto prodotto, si è deciso di simulare nel sito di Cesenatico due ripascimenti virtuali uno caratterizzato da una gralometria fine e da uno con una granulometria più grossolana rispetto a quella osservata a Cesenatico. Il sistema fuzzy naïve Bayes, nonostante al momento sia ancora in fase di messa a punto, si è dimostrato in grado di gestire l'elevato numero di interazioni ambientali che caratterizzano la risposta della componente biologica macrobentonica nell'habitat intertidale delle spiagge sabbiose.

Стилі APA, Harvard, Vancouver, ISO та ін.

17

Neves, Rodrigo Balduino Soares Neves. "Distribuição temporal e espacial da qualidade do leite no Estado de Goiás." Universidade Federal de Goiás, 2015. http://repositorio.bc.ufg.br/tede/handle/tede/5111.

Повний текст джерела

Анотація:

Submitted by Cláudia Bueno (claudiamoura18@gmail.com) on 2016-01-14T14:45:50Z No. of bitstreams: 2 Tese - Rodrigo Balduino Soares Neves - 2015.pdf: 3774564 bytes, checksum: eb9b5dc9c1e9f4f480f018147b1f98f3 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)
Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2016-01-15T09:47:31Z (GMT) No. of bitstreams: 2 Tese - Rodrigo Balduino Soares Neves - 2015.pdf: 3774564 bytes, checksum: eb9b5dc9c1e9f4f480f018147b1f98f3 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5)
Made available in DSpace on 2016-01-15T09:47:31Z (GMT). No. of bitstreams: 2 Tese - Rodrigo Balduino Soares Neves - 2015.pdf: 3774564 bytes, checksum: eb9b5dc9c1e9f4f480f018147b1f98f3 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2015-09-17
Fundação de Apoio à Pesquisa - FUNAPE
O uso de parâmetros como a contagem bacteriana total (CBT) e a contagem celular somática (CCS) permite monitorar as condições higiênicas da produção de leite, além da sanidade da glândula mamária dos rebanhos. O presente estudo foi desenvolvido com objetivo de identificar clusters para o perfil higiênico-sanitário do leite, representado pela CBT e pela CCS, em rebanhos bovinos localizados em mesorregiões do Estado de Goiás. Trata-se de um estudo coorte retrospectivo de rebanhos bovinos leiteiros. Foram avaliados 1.600 rebanhos, que possuíam registro regular de análise do leite no Laboratório de Qualidade do Leite do CPA/EVZ/UFG de Goiânia, GO, Brasil ao longo dos anos de 2012, 2013 e 2014. Para análise estatística empregou-se o teste de Scott Knott ao nível de significância de 5%. Para espacialização dos dados, foi utilizado o método Krigagem do Sistema de Informações Geográficas (SIG) ArcGIS 10.1®. Para identificar os clusters utilizou-se a ferramenta Cluster and Outlier Analysis. A média da CBT no ano de 2014 foi de 102.000 UFC/mL. Enquanto a média de CCS, em 2014, foi de 295.000 Céls/mL. As médias geométricas de CBT e CCS no período de 2012, 2013 e 2014 atenderam o limite legal de 300.000 UFC/mL e 500.000 Cels/mL, mas parcelas de 23% e 21% dos rebanhos, respectivamente, estão acima desse limite legal. Foram identificados clusters que apresentaram contagem alta-alta em todas as mesorregiões avaliadas nos diferentes períodos (chuva e seca) dos anos de 2012, 2013 e 2014. Embora as médias dos indicadores higiênicos sanitários, CBT e CCS estejam em acordo com os limites legais, ao utilizar a ferramenta espacial verificou-se que existem clusters de qualidade que não atendem os padrões legais.
O uso de parâmetros como a contagem bacteriana total (CBT) e a contagem celular somática (CCS) permite monitorar as condições higiênicas da produção de leite, além da sanidade da glândula mamária dos rebanhos. O presente estudo foi desenvolvido com objetivo de identificar clusters para o perfil higiênico-sanitário do leite, representado pela CBT e pela CCS, em rebanhos bovinos localizados em mesorregiões do Estado de Goiás. Trata-se de um estudo coorte retrospectivo de rebanhos bovinos leiteiros. Foram avaliados 1.600 rebanhos, que possuíam registro regular de análise do leite no Laboratório de Qualidade do Leite do CPA/EVZ/UFG de Goiânia, GO, Brasil ao longo dos anos de 2012, 2013 e 2014. Para análise estatística empregou-se o teste de Scott Knott ao nível de significância de 5%. Para espacialização dos dados, foi utilizado o método Krigagem do Sistema de Informações Geográficas (SIG) ArcGIS 10.1®. Para identificar os clusters utilizou-se a ferramenta Cluster and Outlier Analysis. A média da CBT no ano de 2014 foi de 102.000 UFC/mL. Enquanto a média de CCS, em 2014, foi de 295.000 Céls/mL. As médias geométricas de CBT e CCS no período de 2012, 2013 e 2014 atenderam o limite legal de 300.000 UFC/mL e 500.000 Cels/mL, mas parcelas de 23% e 21% dos rebanhos, respectivamente, estão acima desse limite legal. Foram identificados clusters que apresentaram contagem alta-alta em todas as mesorregiões avaliadas nos diferentes períodos (chuva e seca) dos anos de 2012, 2013 e 2014. Embora as médias dos indicadores higiênicos sanitários, CBT e CCS estejam em acordo com os limites legais, ao utilizar a ferramenta espacial verificou-se que existem clusters de qualidade que não atendem os padrões legais.

Стилі APA, Harvard, Vancouver, ISO та ін.

18

Yozzo, John Michael. ""In Illo tempore, ab origine" violence and reintegration in the poems of Robinson Jeffers /." Access abstract and link to full text, 1985. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/8603797.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

19

Florez, Weidinger Juan Daniel [Verfasser], Fred [Akademischer Betreuer] Wolf, Detlev [Akademischer Betreuer] Schild, and Stefan [Akademischer Betreuer] Treue. "Modeling the origins of spatial and temporal variability in visual cortical representations / Juan Daniel Florez Weidinger. Gutachter: Detlev Schild ; Stefan Treue. Betreuer: Fred Wolf." Göttingen : Niedersächsische Staats- und Universitätsbibliothek Göttingen, 2013. http://d-nb.info/1044870400/34.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

20

Borges, Clovis Daniel. "Monitoramento quantitativo e temporal de genes de origem microbiana associados às emissões de gases do efeito estufa sob diferentes usos da terra." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/91/91131/tde-17092015-121053/.

Повний текст джерела

Анотація:

A agropecuária brasileira apresenta relevante papel sócio-econômico para o país, e constantemente busca novas tecnologias para alcançar uma agricultura sustentável. Com as mudanças que vêm ocorrendo no uso da terra, principalmente nas regiões tropical e subtropical, o Brasil vem sendo apontado como um grande emissor dos gases do efeito estufa. A conversão de florestas em sistemas agrícolas pode levar a um rápido aumento dos fluxos de CO2, CH4 e N2O no ambiente, além de potencializar o efeito estufa e ameaçar os diferentes ecossistemas. Em busca de sistemas mais conservacionistas, que possam mitigar o efeito estufa, os sistemas convencional, plantio direto, integração lavoura-pecuária e pastagem com histórico bem definido, foram selecionados nesse estudo para melhor compreensão e discernimento das possíveis mudanças oriundas dos sistemas avaliados no bioma do Cerrado. Em um segundo momento avaliamos o potencial da elevada concentração de CO2 aquecimento das parcelas em sistema sob temperature freeair controlled enhancement e carbon dioxide free-air enrichment (T-FACE) para avaliar as alterações funcionais e composição microbiana do solo. Os objetivos desse estudo foram: determinar a quantidade de células total dos genes 16S rRNA bactéria, archaea e dos genes funcionais amoA, nirS, nirK, cnorB, nosZ, presentes em diferentes sistemas de manejo do solo. Bem como, possíveis alterações na comunidade microbiana do solo sob elevada concentração de CO2 e aquecimento das parcelas. Para acessar o número de cópias dos genes foi utilizado o PCR quantitativo, a estrutura da comunidade microbiana foi determinada pela técnica de T-RFLP e a composição microbiana pelo sequenciamento de terceira geração. Os resultados dos sistemas de plantio direto e integração lavoura-pecuária revelaram importante capacidade de controlarem as emissões de N2O. Notoriamente, o número de cópias do gene nosZ teve sua densidade incrementada nos dois sistemas de plantio direto e integração lavoura-pecuária, este gene apresenta alto potencial para monitorar a desnitrificaçnao completa do N2O a N2. Adicionalmente, a elevada concentração de CO2 e elevada temperatura incrementaram o número de cópias dos genes nifH, AOB e nosZ ao longo do experimento. A análise da diversidade dos grupos taxinômicos e funcional revelou que a diversidade funcional foi alterada nas parcelas com maior emissão de N2O, apresentando maior abundância de genes (2-3 vezes) envolvidos na desnitrificação, acarretando possivelmente essas maiores emissões de N2O pela microbiota do solo.
Agriculture activities have large an important socio-economic role for a country, and are constantly searching for new technologies to achieve sustainable agriculture. Changes have occurred in land use, especially in tropical and subtropical regions and Brazil has been considered as a large emitter of greenhouse gases from agricultural systems. The conversion of forests to agricultural systems can lead to a fast increase of CO2 streams, CH4 and N2O for atmosphere, which enhances the greenhouse effect and threaten the ecosystem. In search of more conservation systems that can mitigate the greenhouse gas, the conventional, no-tillage, integrated crop-livestock and pasture systems with well defined historical management were selected in this study to better understand and decifer the possibles changes resulting in the biome Cerrado. In a second study, it was evaluated the potential of high concentration of CO2 and warming plots on system under increased temperature free-air controlled enhancement e carbon dioxide freeair enrichment (T-FACE) to assess the functional changes and microbial composition in the soil. The objectives of this study were to determine the total amount of the 16S rRNA Bacteria, Archaea and the functional genes amoA, nirS, nirK, cnorB, nosZ present under different soil management and evaluate the possible changes in the soil microbial community under high CO2 concentration and warming in the plots. To access the number of copies genes we used quantitative PCR, with the microbial community structure determined by T-RFLP and the microbial composition by Illumina next-generation sequencing. No-tillage and integrated crop-livestock revealed important capability to control N2O emissions. Notably, the high number of nosZ gene copies was found under no-tillage and integrated crop-livestock systems. This gene has a high potential to monitor the oxidation of N2O to N2. In addition, high CO2 concentration and elevated temperature increased 2-3 folds the number of copies of the nifH genes, and AOB nosZ throughout the experiment. The analysis of the diversity of functional taxonomic groups revealed that functional diversity has changed in plots with high N2O emissions, and showed a greater abundance of genes involved in denitrification, which possibly has stimulated the emissions of N2O from soil microbiota.

Стилі APA, Harvard, Vancouver, ISO та ін.

21

Tolentino, Nancy Curado. "Migrações internacionais e política de desenvolvimento nos países de origem: o caso de Cabo Verde." Master's thesis, Instituto Superior de Economia e Gestão, 2010. http://hdl.handle.net/10400.5/2964.

Повний текст джерела

Анотація:

Mestrado em Desenvolvimento e Cooperação Internacional
Entre os discursos "migração como um problema" e "emigração como panaceia para as questões de desenvolvimento" evoluem as políticas criadas para gerir o fenómeno migratório. A tendência é instrumentalizar as migrações a favor do desenvolvimento. Parece que ainda não se percebeu que ambos se fomentam mutuamente. Pois, a migração é um tipo de resposta de milhares de pessoas às mudanças nas condições de desenvolvimento. E este, por sua vez, fomenta a mobilidade humana. É neste contexto que se procura perceber de que forma as migrações se relacionam com o desenvolvimento de Cabo Verde, na perspectiva da acção do Estado cabo-verdiano. Faz-se isso através da análise de três elos -- a diáspora, as remessas e os esquemas de migração temporária -- e com o intuito de compreender se a emigração pode ser um factor catalisador e sustentador dos processos de desenvolvimento.
Among the speeches "migration as a problem" and "emigration as a panacea for development issues" evolve policies designed to manage migration. The trend is to instrumentalize migration for development. It looks like it is still not clear that they foment each other. Therefore migration is a type of thousands of people response to changes in development conditions. And this, in turn, encourages human mobility. It is in this context that one seeks to understand how migration is related to the development of Cape Verde, in the Cape-verdean state action perspective, trough the analysis of three links - diaspora, remittances and forms of temporary migration - and in order to understand if migration can be a key catalyst and sustainer of development processes.

Стилі APA, Harvard, Vancouver, ISO та ін.

22

Frezzati, Marco. "Studio della domanda di trasporto attratta dalla facolta di Ingegneria di Bologna." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

Знайти повний текст джерела

Анотація:

La tesi e incentrata nello studio della domanda di trasporto affluente la facolta di Ingegneria. Tale domanda viene descritta attraverso una ripartizione modale e temporale degli arrivi in facolta durante l'ora di punta della mattina. In particolare, per gli utenti che utilizzano la bicicletta come modo di trasporto, e stata effettuata, attraverso un' indagine campionaria, una caratterizzazione dell' origine dello spostamento e del percorso intrapreso. Inoltre sono stati analizzati i fattori che influenzano le scelte del percorso, in modo da giustificare l'utilizzo, o meno, delle piste ciclabili.

Стилі APA, Harvard, Vancouver, ISO та ін.

23

Ciardo, Diletta. "Quantitative analysis of the regulation of the DNA replication program by the intra-S phase checkpoint in Xenopus embryos Checkpoint control of the spatio-temporal regulation of DNA replication in Xenopus early embryos Polo-like kinase 1 (Plk1) is a positive regulator of DNA replication in the Xenopus in vitro system On the Interplay of the DNA Replication Program and the Intra-S Phase Checkpoint Pathway Genome wide decrease of DNA replication eye density at the midblastula transition of Xenopus laevis Polo like kinase 1 promotes dispersed replication origin firing during S phase." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS478.

Повний текст джерела

Анотація:

Dans les organismes multicellulaires, plusieurs millier d’origines initient la réplication de l'ADN. Elles sont regroupées en domaines qui se répliquent tôt ou tard au cours de la phase S (origines précoces ou tardives). L'un des mécanismes régulant le programme de réplication est un point de contrôle intra phase S qui dépend des kinases ATR et Chk1. Cette voie est activée par un stress réplicatif engendré par le blocage des fourches de réplication aux origines précoces, en retour elle inhibe l’activation des origines tardives. Il a été proposé, que la protéine Polo-Like-Kinase 1 (Plk1) soit responsable du déclenchement des origines situées à proximité des fourches bloquées en cas de stress réplicatif. Cependant, aucune analyse de l’activation des origines n’a jamais été réalisée au cours d’une phase S non perturbée lorsque Plk1 est absente. Pour avoir une vue globale et unifiée du processus de réplication de l'ADN, des modèles numériques et analytiques ont été construits dans le passé, mais aucun d'eux n'intègrent le rôle de Chk1 et Plk1. L'objectif de ma thèse était d’étudier expérimentalement et analytiquement de quelle manière Chk1 peut réguler le déclenchement des origines dans l'espace et dans le temps. En particulier, de comprendre si Plk1 pouvait être impliquée dans cette régulation pendant une phase S non perturbée, à cette fin, j'ai utilisé le système réplicatif des extraits d’œuf de Xénopes. En premier lieu, j'ai intégré dans un modèle numérique l’action de Chk1 pour reproduire le programme de réplication du système Xénope. J'ai testé différents scénarios puis j’ai utilisé des données de peignage d'ADN obtenues précédemment dans des conditions d'inhibition de la kinase Chk1. Les simulations Monte Carlo obtenues ont été ajustées aux données expérimentales en optimisant les valeurs des paramètres libres des modèles. J'ai trouvé qu'il fallait ajouter deux hypothèses aux modèles de réplication développés précédemment: 1) la présence d’une forte inhibition du déclenchement des origines par Chk1 à partir du début de la phase S 2) la présence de domaines génomiques répliquant précocement et qui échappent à cette inhibition. Deuxièmement, j'ai montré expérimentalement que, Plk1 actif est recrutée sur la chromatine avant le début de la phase S non perturbée et qu'en l'absence de Plk1, la réplication de l'ADN est ralentie. De plus, l’absence de Plk1 entraîne une augmentation de la phosphorylation de Chk1 et une diminution de l’activité de la kinase Cdk2, ce qui suggère que Plk1 inhibe Chk1. En réalisant des expériences de peignage d’ADN, j'ai démontré qu’en l’absence de Plk1 on observe une baisse du niveau d’activation des origines. L'analyse de ces données par mon modèle numérique suggère que Plk1 régule négativement l’action de Chk1 levant ainsi son action inhibitrice sur l’activation globale des origines. Cet effet concorde avec mes observations expérimentales. Il semble cependant que Plk1 n’agisse pas à proximité directe des fourches de réplication, comme cela avait été proposé précédemment. Enfin, en assimilant le processus de réplication à un processus de nucléation et de croissance unidimensionnel, j'ai développé une nouvelle approche quantitative pour étudier la régulation du programme de réplication. Cette approche lie la similarité entre les profils spatiaux de réplication d'une molécule unique et les processus de régulation de la réplication de l'ADN. En analysant les données de peignage d'ADN, j'ai montré que le programme de réplication de l'ADN des embryons précoces de Xénope est régulé par deux processus exclusifs dans l'espace et dans le temps. L’un avec une fréquence faible d’activation des origines et une vitesse apparente de fourches élevée et un second, régulé par Plk1, présentant une fréquence d’activation élevée des origines avec une vitesse apparente de fourches faible
The initiation of DNA replication in multicellular organisms starts from several thousand genomic loci called replication origins. They are grouped into domains which replicate early or late during S phase. The firing of a replication origin creates two diverging replication forks that replicate flanking DNA. One of the mechanisms regulating DNA replication program is the ATR/Chk1 dependent intra-S phase checkpoint. This pathway is activated by replicative stress due to stalled replication forks at early firing origins and in turn, inhibits the late firing of origins. It has been proposed that the checkpoint recovery kinase Plk1 (Polo-Like-Kinase 1) could be responsible for allowing origin firing close to stalled forks in replication stress conditions. However, origin firing has not been analysed after Plk1 inhibition or depletion during unperturbed S phase. To assemble a comprehensive and unified view of the DNA replication process numerical and analytical models have been built in the past, but none of them integrates the role of checkpoint pathways. The goal of my thesis was to investigate experimentally and analytically how the checkpoint regulates the firing of origins in space and time and, in particular, whether the Plk1 is implicated in the regulation of origin firing during unperturbed S phase. To this end, I used the Xenopus in vitro system. First, I integrated in a numerical model the checkpoint pathway to describe the replication program in the Xenopus in vitro system. I tested different scenarios and used DNA combing data previously obtained by the laboratory after the inhibition of the checkpoint kinase Chk1. Monte Carlo simulated data were fitted to experimental data by optimizing the values of free parameters of models using a genetic algorithm. I found that two new hypothesis should be added to formerly built replication models: 1) a strong inhibition of origin firing by Chk1 from the beginning of S phase 2) the presence of early replicating genomic domains that evade the origin firing inhibition. Second, I experimentally showed that during unperturbed S phase active Plk1 is recruited to chromatin before the start of S phase and that in the absence of Plk1, DNA replication is slowed down. Moreover, Plk1 depletion led to an increase in Chk1 phosphorylation (p-Chk1) and a decrease of Cdk2 activity, suggesting that Plk1 inhibits the intra-S phase checkpoint. Performing DNA combing, I demonstrated that Plk1 depletion leads to a decrease in origin firing level. Analysis of the combing data by the developed numerical model suggested that during unchallenged S phase Plk1 down regulates the global origin firing inhibitory action of Chk1, consistent with the experimental observation of increased level of p-Chk1 in Plk1 depleted Xenopus egg extract. However, Plk1 does not seem to act close to replication forks as was proposed earlier. Finally, by considering replication process as a one-dimensional nucleation and growth process and using statistical methods, I developed a new quantitative approach to study the regulation of replication program. This approach links the similarity between single molecule replication patterns to DNA replication regulating processes. By analyzing DNA combing data, I showed that DNA replication program in Xenopus early embryos is regulated by two spatially and temporally exclusive processes. One with low frequency of origin firing and high apparent fork speed and a second, controlled by PlK1, with a high frequency of origin firing and a low apparent fork speed. Altogether my results demonstrate that Plk1 positively regulates replication origin firing during normal S phase by down regulating the replication checkpoint. The numerical model predicts the existence of replication timing domains in the Xenopus model system. Future work will show whether Plk1 regulates the replication program at the level of genomic domains

Стилі APA, Harvard, Vancouver, ISO та ін.

24

Hassan, Zadeh Vahideh. "Rôle de l'insulateur 5'HS4 du poulet dans la régulation de la réplication." Paris 6, 2009. http://www.theses.fr/2009PA066172.

Повний текст джерела

Анотація:

L’ADN est répliqué selon un programme spatio-temporel. Je me suis intéressée à la régulation de ce programme. Pour cela, j’ai utilisé le locus -globine du poulet. Il porte un insulateur (5’HS4) et quatre origines de réplication. Mon projet consistait à étudier le rôle de 5’HS4 dans l’activité et le moment d’activation de ces origines. 5’HS4 est important dans la mise en place des domaines de transcription et des corrélations avaient été trouvées entre les domaines de réplication et de transcription. Pour tester l’hypothèse selon laquelle cet insulateur joue un rôle dans la régulation de la réplication, j’ai travaillé sur des lignées 6C2 transgéniques portant une de ces origines () flanquée par des copies de 5’HS4. J’ai montré que cette origine est un réplicateur. Contrairement à son moment d’activation, la séquence de l’origine est suffisante pour spécifier une origine de réplication. J’ai montré aussi que les insulateurs flanquants dictent une activation précoce de l’origine.

Стилі APA, Harvard, Vancouver, ISO та ін.

25

Casswell, Nicholas James. "Portfolio of original musical compositions with written commentary subtitled : 'Temporal continuities and discontinuities : a study of time and discourse in music by composition, analysis and musicological enquiry'." Thesis, University of Leeds, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.403049.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

26

Labit, Hélène. "Régulation de l'initiation de la réplication chez les vertèbrés : analyse du programme temporel d'activation des origines de réplication dans les extraits d'oeufs de xénope." Paris 7, 2007. http://www.theses.fr/2007PA077176.

Повний текст джерела

Анотація:

Chez les vertébrés, l'activation des origines de réplication est soumise à une régulation spatiale et temporelle. Dans les embryons précoces de xénope, les origines sont positionnées sans aucune spécificité de séquence et sont activées en clusters à différents moments de la phase S. L'objectif principal de ce travail a consisté à caractériser cette régulation temporelle en analysant d'une part, l'activation des origines au sein de fibres individuelles d'ADN, et d'autre part, la distribution des foyers de réplication au sein de noyaux de spermatozoïde incubés dans des extraits d'œufs de xénope. Grâce à la technique de peignage moléculaire, nous avons comparé la distribution des origines de réplication au début de deux phases S consécutives. L'absence de coïncidence « temporelle » entre les origines démontre que le moment d'activation des origines ne dépend pas de la position génomique et qu'il n'existe pas de régulation épigénétique du moment de réplication à l'échelle des origines. Cependant l'observation d'une coïncidence entre les foyers utilisés au début de deux cycles consécutifs suggère qu'une organisation chromosomique pourrait influencer le moment de réplication. L'analyse de la réplication de l'ADN ribosomique par FISH a fourni un exemple de domaine chromosomique répliqué plus tardivement que l'ADN génomique global. Une structure chromatinienne particulière pourrait expliquer ce retard. Par ailleurs, la fréquence d'initiation à ce locus est deux fois plus faible dans l'espaceur intergénique très riche en G+C que dans la région codante. Au sein de ce locus, il pourrait donc exister des facteurs locaux influençant le positionnement des origines de réplication
In Vertebrates, replication origins are activated according to a spatial and temporal program. In early Xenopus embryos, origins are located at apparently random sequences and are activated in clusters that fire at different times throughout S phase. The main object of the present work is to characterize the temporal regulation of replication in Xenopus egg extracts through analysis of origin activation on single DNA fibers and replication foci distribution in sperm nuclei. Using molecular combing of DNA, we compared the distributions of replication origins fired at the beginning of two following S phases. Absence of significative coincidence between origins shows that the temporal order of replication does not depend on genomic position. Furthermore, no epigenetic central regulates the moment of origin firing. However the detection of coincidence between replication foci labeled at the beginning of two following S phases suggests that the chromosomal organization may influence the replication timing. Using FISH, we showed that the replication of the ribosomic DNA is delayed compared to the replication of whole genomic DNA. An altered chromatin structure may be responsible for this delay. Mapping of origins revealed that initiation frequency is two fold lower in the G+C rich intergenic spacer than in the coding rDNA sequence. At the rDNA, local parameters such as nucleotide composition may influence the localization of replication origins

Стилі APA, Harvard, Vancouver, ISO та ін.

27

Masséna, Floriane. "La prescription extinctive des moyens de défense, aux origines de la maxime Quæ temporalia sunt ad agendum perpetua sunt ad excipiendum." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASH010.

Повний текст джерела

Анотація:

En établissant la perpétuité de l’exception de nullité à l’article 1185 du code civil dans sa nouvelle rédaction issue de la réforme du droit des obligations de 2016, le législateur a partiellement codifié la maxime Quæ temporalia sunt ad agendum perpetua sunt ad excipiendum. La question de la durée des autres moyens de défense n’a en revanche pas été résolue par la réforme. Les débats qui ont cours depuis le milieu du XXe siècle quant à la pertinence d’un principe de perpétuité des moyens de défense demeurent donc d’actualité. Ses partisans invoquent la maxime Quæ temporalia, ses racines anciennes, et sa constance au fil des siècles. Ses détracteurs invoquent au contraire la prétendue caducité de la maxime Quæ temporalia, laquelle aurait été implicitement abrogée par le code civil de 1804. L’étude historique de cette maxime permet de mieux en saisir la cause, le contexte et les motifs à l’origine de son élaboration et, à travers les évolutions de son régime juridique, d’enrichir et de renouveler le débat tenant à son opportunité en droit positif. D’origine plus probablement médiévale que romaine, la maxime Quæ temporalia vise, en offrant un privilège à la partie faible du procès, à assurer l’équité au cours de l’instance. Cette volonté de protéger le défendeur se retrouve à chaque époque et se traduit par de régulières réaffirmations et extensions du principe de perpétuité des moyens de défense. Le quasi vide juridique qui caractérise l’histoire de cette maxime invite à s’intéresser par ailleurs à la place des sources subsidiaires du droit dans le système français, y compris après l’œuvre codificatrice napoléonienne
The article 1185 of the civil code has been modified by the 2016 reform. Since then, this text decides that the exception based on nullity is perpetual. Therefore, part of the maxim Quæ temporalia sunt ad agendum perpetua sunt ad excipiendum is now included in the law. However, the duration of the other defences has not been fixed by the law.Since the middle of the XXth century, a debate about the existence of a principle of perpetuity of all defences takes place. Jurists who agree with this principle invoke the maxim Quæ temporalia, its old roots, and his continuity throughout centuries. At the opposite side, Jurists who disagree consider that this maxim has been abrogated in 1804. An historical study of the maxim helps understanding its cause, the context of its creation and its evolutions. These informations renew the debate concerning its incorporation into positive law.The maxim must have been created during medieval period. By offering a privilege ot the weakest party, the maxim seeks equity. As the will to protect the defendant is constant in time, the maxim has been reaffirmed and extended regularly through centuries.As there are really few texts about the duration of denfences, the maxim also leeds to study the importance of secondary sources of law, even after the XIXth century codification work

Стилі APA, Harvard, Vancouver, ISO та ін.

28

Araújo, Liliane Santos. "Origens, fontes, distribuição espaço-temporal em sedimentos e bioacumulação de hpas em ucides cordatus nos estuários dos rios são paulo e jaguaripe, baía de todos os santos, Bahia." Instituto de Geociências, 2016. http://repositorio.ufba.br/ri/handle/ri/25684.

Повний текст джерела

Анотація:

Submitted by Gisele Mara Hadlich (gisele@ufba.br) on 2018-04-04T14:33:09Z No. of bitstreams: 1 Liliane Santos Araújo.pdf: 1198876 bytes, checksum: 1c577294a0d262b0e807e676026b3be5 (MD5)
Made available in DSpace on 2018-04-04T14:33:09Z (GMT). No. of bitstreams: 1 Liliane Santos Araújo.pdf: 1198876 bytes, checksum: 1c577294a0d262b0e807e676026b3be5 (MD5)
Grande parte dos manguezais tornam-se receptores de resíduos resultantes de atividades antrópicas. Um dos contaminantes resultantes dessas ações são os Hidrocarbonetos Policíclicos Aromáticos (HPAs) que, devido à sua característica lipofílica, são absorvidos por meio dos tecidos biológicos dos organismos marinhos. Este estudo objetiva a determinação dos HPAs prioritários, naftaleno, acenaftileno, acenafteno, fluoreno, fenantreno, antraceno, fluoranteno, pireno, benzo (a) fluoranteno, benzo (b) fluoranteno, benzo (k) fluoranteno, benzo (a) pireno, indeno (1,2,3- cd) pireno, dibenzo (a,h) antraceno e benzo (g,h,i) perileno nos sedimentos e no hepatopâncreas do caranguejo da espécie Ucides cordatus (Linnaeus 1763) (caranguejo Uçá), fonte econômica para as populações locais, possibilitando a determinação da qualidade do sedimento do manguezal, além de indicar a qualidade do pescado consumido na região, através da análise de HPAs. Para isto, foi realizada em agosto de 2014 uma coleta no estuário do rio São Paulo em cinco pontos distribuídos ao longo do manguezal, sendo coletados quatro amostras por ponto, totalizando vinte unidades amostrais de caranguejos que foram utilizados posteriormente nos testes para redução de lipídios do hepatopâncreas. Em seguida, foi concretizada nos estuário dos rios São Paulo e Jaguaripe duas coletas em dois períodos diferentes do ciclo de vida do caranguejo Uçá: no período reprodutivo, em dezembro de 2015 e no período da ecdise (muda), no mês de agosto de 2015. Estas coletas foram formadas por cinco pontos amostrais, onde foram coletados quatro unidades em cada ponto, totalizando vinte unidades amostrais de caranguejos. O sedimento foi coletado no fundo das galerias do caranguejo Uçá, em duas réplicas por ponto, totalizando 10 elementos amostrais de sedimentos ao longo do estuário. Foram realizados testes metodológicos para verificar a melhor eficácia no processo de redução do teor de lipídios no hepatopâncreas do Ucides cordatus. Foram realizadas análises estatísticas descritivas, inferenciais e multivariadas para os dados ambientais e biológicos através dos programas Bioestat e Canoco. Os resultados obtidos para o sedimento no estuário do rio Jaguaripe mostraram um maior teor de HPAs com valores que variaram de 3,38 a 189,02 ng g-1 e no estuário do rio São Paulo de 3,00 a 128,63 ng g-1 .

Стилі APA, Harvard, Vancouver, ISO та ін.

29

Fedon, Lorenzo <1989&gt. "Analisi di contaminanti organici in campioni di firn provenienti da una carota di ghiaccio prelevata a Dome C, plateau antartico: valutazione di un trend temporale di distribuzione di composti di origine antropogenica." Master's Degree Thesis, Università Ca' Foscari Venezia, 2019. http://hdl.handle.net/10579/15640.

Повний текст джерела

Анотація:

Questo lavoro di tesi prevede la messa a punto e la validazione di una metodologia analitica per la determinazione di diverse classi di composti organici di natura antropogenica: idrocarburi policiclici aromatici (PAH), polibromodifenileteri (PBDE), policlorobifenili (PCB), policlorodibenzo-p-diossine e policlodibenzofurani (PCDD/F), policloronafatleni (PCN)e pesticidi organo-clorurati e -fosforici (OCP e OPP) in campioni di ghiaccio, firn e/o neve, provenienti da aree remote. Tale metodica è stata applicata su campioni di firn provenienti da una carota di ghiaccio prelevata a Dome C, Antartide. L'orizzonte temporale ricoperto dai sub-campioni oggetto di analisi è compreso tra la fine del XVIII secolo e i giorni nostri. La principale novità introdotta rispetto alle procedure analitiche esistenti consiste nell'impiego di quantità esigue di campione (meno di 0.5 L), al fine di ottenere una buona risoluzione temporale lungo tutto il profilo verticale della carota, che consenta così di stimare un trend cronologico di distribuzione e deposizione di micro-contaminanti organici nel plateau antartico. Per tale motivo e per minimizzare la possibile contaminazione dei campioni, tutte le fasi pre-analitiche sono state eseguite in laboratori a contaminazione controllata: clean-room (classe 10000 e 1000). La determinazione degli analiti è stata condotta mediante le più avanzate tecniche ifenate GC/MS. Obiettivo finale del lavoro è l'interpretazione del profilo cronologico di distribuzione delle diverse classi di analiti indagate e la valutazione di una loro eventuale formazione spontanea durante eventi vulcanici ad alto VEI (Volcanic Explosivity Index).

Стилі APA, Harvard, Vancouver, ISO та ін.

30

Schofield, Grant Michael. "Executive function and memory deficits in patients with complex partial seizures of temporal lobe origin." Thesis, 2014.

Знайти повний текст джерела

Анотація:

A controlled study of the higher function constructs of patients with complex partial seizures of temporal lobe origin {Temporal Lobe Epilpesy) on neuropsychological measures of memory (short-term memory, verbal memory, visual memory and learning) and executive function (perseveration response, shift-of-set, planning abilities, abstract thought). Control Group matched to Experimental group wn the variables of age, gender, race and educational level. Findings suggest that the experimental (TLE group) is impaired on all memory measures except learning. The experimental group also performs significantly poorly on all the measures of executive function. A correlation also exists between the performance by the experimental group on the measures o f memory and executive function, suggesting that depressed executive function in these patients is related to depressed memory functions.

Стилі APA, Harvard, Vancouver, ISO та ін.

31

Dondero, Molly. "Three essays on the social and temporal dimensions of cardiovascular health among the Mexican-origin population in the United States." Thesis, 2014. http://hdl.handle.net/2152/27167.

Повний текст джерела

Анотація:

The size of the Mexican-origin population in the United States means that its health patterns have important implications for the country’s overall population health. Understanding how this population is woven into the country’s complex social patterning of health is critical to understanding current social disparities in health. Drawing on a health disparities perspective and nationally representative datasets, this dissertation addresses key gaps in the social demographic literature on the health of the Mexican-origin population through three empirical chapters that examine how multiple measures of cardiovascular health are distributed across diverse social status and temporal configurations. I first examine how the obesity epidemic has unfolded across multiple temporal (age, period, and cohort) and social dimensions (gender, nativity, and race) for the Mexican-origin population. I find that period rather than cohort forces have shaped the rise in obesity among the Mexican-origin population. Furthermore, the pronounced group differences in obesity prevalence have remained stable across periods and cohorts, with the exception of a growing nativity gap among Mexican-origin women, among whom obesity has increased faster for U.S.-born individuals compared with foreign-born individuals. I next address the intersection of two additional temporal and social determinants of health: duration of residence in the United States and educational attainment. Building on research documenting a weak relationship between education and health for Mexican immigrants, I assess whether duration of U.S. residence strengthens this association. The patterns vary by outcome, but generally indicate that negative education gradients in health are more pronounced for long-term Mexican immigrants than for recent Mexican immigrants and that the education gradients of long-term Mexican immigrants resemble those of U.S.-born Whites. I then engage the literature linking acculturation to poor health among Mexican immigrants. Acculturation models of immigrant health have come under critique for ignoring the structural determinants of health. I engage in this debate by using segmented assimilation theory—which emphasizes the role of structural factors—to examine whether education conditions the association between acculturation and health. I find support for the idea that the detrimental influence of acculturation on cardiovascular health is concentrated among Mexican immigrant adults with low levels of education.
text

Стилі APA, Harvard, Vancouver, ISO та ін.

32

Lee, Hsiao-fen, and 李曉芬. "Volcanic Gas Compositions of the Tatun Volcano Group, Taiwan, and Taal Volcano and Negros Island, Philippines: Insights into Gas Origin, Temporal and Spatial Variation." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/a3w8ju.

Повний текст джерела

Анотація:

博士
國立臺灣大學
地質科學研究所
99
Volcanic gases can provide us much useful information for understanding the characteristics and activity of magmas. Samples were collected by using ‘Giggenbach bottles’ from Tatun Volcano Group (TVG), Taiwan, and Taal Volcano and Negros Island, Philippine. The highest temperatures of these geothermal areas are around boiling point. These samples all show a similar composition as those of low-temperature fumaroles in other parts of the world. H2O is the major species of these gas samples, and CO2 is the dominant component after de-watering. Both of the gas compositions and temperatures indicate that vapor separated from boiling water near the surface. The high 3He/4He ratios of all samples indicate a mantle-derived degassing source in origin, i.e., magma chambers could still exist beneath these volcanoes. Helium isotopes ratios show a decreasing trend from north to south in Negros Island, such distribution could be due to more crustal contamination caused by the collision event which happened in the northern part of the island. The carbon isotopic values of CO2 of Taal Volcano and the TVG area exhibit a magmatic source. The carbon isotopic values of CO2 of Negros Island samples are far less negative than the values from a magma source. There are other carbon sources of CO2, most likely a thick sequence of limestone formation in Negros Island. We also analyzed the volatile organic compounds (VOCs) in the TVG area. The VOCs in most sampling sites show a similar distribution as hydrothermal areas, except Da-you-keng area. However, compared to other volcanoes in the world, there is an excess of methane in the TVG area. According to carbon and hydrogen isotopic values of methane, this excess methane might be produced by the organic matter which in the deep stratum. In addition, the results of long-term observation in the TVG area show that there is no significant change in gas composition from 1999 to 2003. However, since August 2004, progressive increases of HCl concentrations and SO2/H2S ratio in fumaroles from Da-you-keng have been observed. These variations were accompanied by rising temperature of fumaroles. We propose two possible processes, 1) new magma supply and 2) recent opening of fractures in local area, to explain these observations. In 2010, brief increases of HCl concentrations were observed in most sampling sites simultaneously. There is no large-scale earthquake take place in this period. We need to check if this phenomenon is associated with microseismic activity.

Стилі APA, Harvard, Vancouver, ISO та ін.

33

Florez, Weidinger Juan Daniel. "Modeling the origins of spatial and temporal variability in visual cortical representations." Doctoral thesis, 2013. http://hdl.handle.net/11858/00-1735-0000-001D-BFE8-F.

Повний текст джерела

Стилі APA, Harvard, Vancouver, ISO та ін.

34

ROW, JEFFREY. "Origins of genetic variation and population structure of foxsnakes across spatial and temporal scales." Thesis, 2011. http://hdl.handle.net/1974/6271.

Повний текст джерела

Анотація:

Understanding the events and processes responsible for patterns of within species diversity, provides insight into major evolutionary themes like adaptation, species distributions, and ultimately speciation itself. Here, I combine ecological, genetic and spatial perspectives to evaluate the roles that both historical and contemporary factors have played in shaping the population structure and genetic variation of foxsnakes (Pantherophis gloydi). First, I determine the likely impact of habitat loss on population distribution, through radio-telemetry (32 individuals) at two locations varying in habitat patch size. As predicted, individuals had similar habitat use patterns, but restricted movements to patches of suitable habitat at the more disturbed site. Also, occurrence records spread across a fragmented region were non-randomly distributed and located close to patches of usable habitat, suggesting habitat distribution limits population distribution. Next, I combined habitat suitability modeling with population genetics (589 individuals, 12 microsatellite loci) to infer how foxsnakes disperse through a mosaic of natural and altered landscape features. Boundary regions between genetic clusters were comprised of low suitability habitat (e.g. agricultural fields). Island populations were grouped into a single genetic cluster suggesting open water presents less of a barrier than non-suitable terrestrial habitat. Isolation by distance models had a stronger correlation with genetic data when including resistance values derived from habitat suitability maps, suggesting habitat degradation limits dispersal for foxsnakes. At larger temporal and spatial scales I quantified patterns of genetic diversity and population structure using mitochondrial (101 cytochrome b sequences) and microsatellite (816 individuals, 12 loci) DNA and used Approximate Bayesian computation to test competing models of demographic history. Supporting my predictions, I found models with populations which have undergone population size drops and splitting events continually had more support than models with small founding populations expanding to stable populations. Based on timing, the most likely cause was the cooling of temperatures and infilling of deciduous forest since the Hypisthermal. On a smaller scale, evidence suggested anthropogenic habitat loss has caused further decline and fragmentation. Mitochondrial DNA structure did not correspond to fragmented populations and the majority of foxsnakes had an identical haplotype, suggesting a past bottleneck or selective sweep.
Thesis (Ph.D, Biology) -- Queen's University, 2011-01-11 10:40:52.476

Стилі APA, Harvard, Vancouver, ISO та ін.

35

Hoggatt, Bradley D. "Origins of temporal and spatial variability of lake-effect snow structures a numerical investigation /." 1996. http://catalog.hathitrust.org/api/volumes/oclc/36365590.html.

Повний текст джерела

Анотація:

Thesis (M.S.)--University of Wisconsin--Madison, 1996.
Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 114-118).

Стилі APA, Harvard, Vancouver, ISO та ін.

36

Mourão, Cyntia Coquelet Pinto 1980. "Geoquímica das rochas magmáticas da Ilha Brava:implicações para a origem e variabilidade espaço-temporal do ponto quente de Cabo Verde." Doctoral thesis, 2013. http://hdl.handle.net/10451/8003.

Повний текст джерела

Анотація:

Tese de doutoramento, Geologia (Geoquímica), Universidade de Lisboa, Faculdade de Ciências, 2013
A Ilha Brava (64 km2) localiza-se no extremo oeste do alinhamento meridional do arquipélago de Cabo Verde, sendo constituída por três unidades vulcanoestratigráficas que testemunham uma história vulcânica de cerca de 3 Ma. Foi escolhida como objecto de estudo na tentativa de contribuir para a melhor compreensão da origem e local de residência de alguns dos componentes mantélicos, das relações genéticas entre magmas silicatados e carbonatíticos, dos processos de desgaseificação de magmas carbonatíticos e da origem do carbono neles contido, da variabilidade geoquímica espaço-temporal do ponto quente de Cabo Verde, e da profundidade de enraizamento da sua pluma mantélica. A Brava contrasta com as outras ilhas do arquipélago por definir dois grupos geoquímicos distintos. As amostras do Complexo Basal, sendo menos radiogénicas Sr e He e mais em Nd e Pb que a unidade mais recente, são idênticas às ilhas do norte e explicáveis pela mistura de um componente do tipo HIMU (crosta oceânica reciclada com 1.3 Ga) e manto inferior (3He/4He até 12.85 Ra), carreados para a “superfície” pela pluma mantélica. Tal como é usual nas ilhas do sul, a Unidade Superior sugere, em adição, o envolvimento de um componente com afinidade EM-1, aqui considerado representativo de fragmentos de litosfera subcontinental dispersos na astenosfera. Os carbonatitos definem dois grupos com assinaturas isotópicas semelhantes às das rochas silicatadas contemporâneas. Os calciocarbonatitos resultaram de imiscibilidade líquida produzindo magmas nefeliníticos e carbonatíticos, enquanto os magnesiocarbonatitos representam líquidos residuais após a fraccionação de calcite a partir de um magma carbonatítico. As muito baixas razões 4He/40Ar* (≈ 0.25) que caracterizam a fonte dos carbonatitos do Complexo Basal indicam uma evolução a partir de razões K/U muito mais elevadas que o conjunto dos reservatórios silicatados da Terra. Sendo estes valores, também incompatíveis com a reciclagem de componentes crostais, foram aqui interpretados como podendo reflectir a contribuição do “missing Ar reservoir” para a fonte mantélica dos carbonatitos.
Brava (64 km2) is the westernmost island of the cape-verdean southern alignment. Three volcano-stratigraphic units were identified, testifying a volcanic history of 3 Ma. It was chosen as a case study in an attempt to i) contribute to a better understanding of some mantle components origin and residence local, ii) the genetic link beteween silicate and carbonatitic magmas, iii) the degassing process affecting carbonatitic magmas, iv) the origin of their carbon, v) the spacial and temporal variability of the Cape Verde magmatism and vi) the root depth of the mantle plume. In contrast to other islands of the archipelago, Brava is clearly characterized by two groups of distinct isotopic compositions. The Basal Complex, being more Nd- and Pb-radiogenic and less Sr- and He-radiogenic than the Upper Unit volcanics, is similar to the northern islands, being mainly explained by the mixing of a HIMU-type local end-member [ancient (≈ 1.3 Ga) recycled oceanic crust], with the lower mantle (3He/4He up to 12.85 Ra), both carried to the “surface” by the mantle plume. As for the southern islands, the Upper Unit elemental and isotopic signatures suggest the involvement of an additional local end-member akin to the EM1-type, which is considered to represent the subcontinental lithosphere floating in the asthenosphere. Brava carbonatites define two distinct groups with similar isotopic ranges as those observed for the coeval alkaline silicate rocks. It is proposed that calciocarbonatites, from the Intermediate and Upper units, resulted from nephelinite-carbonatite liquid immiscibility, while the subordinate Intermediate Unit magnesiocarbonatites represent residual liquids after calcite fractionation from carbonatite magma. The inferred low 4He/40Ar* (≈ 0.25) that characterizes the source of Basal Complex carbonatites is thought to reflect the contribution of a mantle domain evolving under high K/U, which cannot be explained by recycling of crustal components. Instead, it could reflect the contribution of the “missing Ar reservoir” to the carbonatite mantle sources.
Fundação para a Ciência e a Tecnologia (FCT, bolsa de doutoramento e projeto PLINT); Fundação Calouste Gulbenkian

Стилі APA, Harvard, Vancouver, ISO та ін.

37

Ferreira, Maria da Conceição Nunes. "Avaliação das origens do ozono no nordeste de Portugal." Master's thesis, 2009. http://hdl.handle.net/10348/2563.

Повний текст джерела

Анотація:

Dissertação de Mestrado em Clima e Alterações Climáticas
O estudo centralizou-se no Nordeste de Portugal, mais propriamente no Parque Natural do Alvão, onde desde 2004 foi instalada na aldeia de Lamas de Olo uma estação de monitorização de qualidade do ar. O lugar é rural, isento de fontes de poluição, mas com valores de ozono frequentemente elevados e, como tal, constituindo um risco para as populações e ecossistemas do parque Natural do Alvão. O estudo focalizou-se na faixa temporal de 2004 a 2007 e debruça-se sobre a explicação do padrão das respectivas séries de ozono registadas em Lamas de Olo. Numa primeira fase, por, recurso à análise da série do ozono por separação nas suas componentes dinâmicas utilizando o filtro KZ, procurou-se salientar quais as componentes mais relevantes que explicam o padrão encontrado, tendo-se salientando as variações de carácter sinóptico e sazonal como as de maior influência no padrão evolutivo do ozono em Lamas de Olo. Nas fases seguintes, procurou-se focalizar o estudo nos aspectos mais relevantes anteriormente salientados pelo recurso ao filtro KZ. Desta forma, foi feita a análise das séries de ozono, tendo sido identificados os ciclos diurnos e sazonais do ozono, como um nível fotoquímico de maior intensidade entre as 16h e 18h (UTC). No aspecto sazonal, as médias mais elevadas de ozono ocorrem na Primavera e no Verão. Identificou-se também a ocorrência de incêndios no período em estudo e a sua eventual relação com a produção local de ozono, bem como a relação entre as concentrações de ozono e alguns parâmetros meteorológicos, como a temperatura, radiação, solar, razão de mistura e rumo do vento. Por outro lado, foi feita a análise, para cada estação do ano, da evolução do ciclo diurno do ozono por rumo de vento e a detecção de perturbações nestes ciclos de ozono. Estes efeitos perturbadores englobam o possível transporte de poluentes, identificando-se assim as direcções onde existe probabilidade de haver transporte de poluentes. O transporte de precursores para Lamas de Olo tem a probabilidade de ocorrer de todo litoral de Portugal e do continente europeu, nomeadamente nas direcções N-NE e SE-S. Neste trabalho conheceram-se algumas referências locais que puderam ser úteis na futura utilização de modelos de poluição atmosférica.
The study it was centered north-eastern of Portugal, more properly in the Natural Park of the Alvão where since 2004 was installed in the village of Lamas de Olo one station of air quality. The place is characterized by an rural environment and without pollution sources but with high ozone concentration values, that becomes a risk for the populations and ecosystems. This study analyzes the temporal series of the ozone concentration during the period of 2004 to 2007. The knowledge of the series of ozone and the separation in its dynamic components using filter KZ, being outstanding the variations of synoptic characteristics and seasonal with bigger influence in the standard evolution of ozone. The understanding of the hourly and seasonal cycles of ozone, characterizing itself it the photo-chemist level that bigger intensity occurs between 16h and 18h (UTC). In the seasonal aspect, the raised ozone averages occur mainly in the Spring and Summer. It was identified the fire occurrence period in study, as well as the relation between some meteorological parameters and ozone concentrations, such as, the temperature, solar radiation, relative humidity and the wind directions. The understanding in each station of the year of evolution of the diurnal cycle of ozone for wind directions and detention of disturbances in these ozone cycles. These disturbing effect involve the possible transport of pollutants, one identifies thus the directions where probability exists to have transport of pollutants. The transport of precursors for Lamas of Olo has the probability to occur of all coastal of Portugal and the European continent, nominated in wind directions N-NE and SE-S. This work has some local references that had been able to be useful in the future use of models of atmospheric pollution.

Стилі APA, Harvard, Vancouver, ISO та ін.

38

Mateos, Diego Martín. "Medidas de complejidad y de información como herramientas para el análisis de series temporales : aplicaciones al estudio de señales de origen electrofisiológicos." Doctoral thesis, 2016. http://hdl.handle.net/11086/2853.

Повний текст джерела

Анотація:

Tesis (Doctor en Física)--Universidad Nacional de Córdoba, Facultad de Matemática, Astronomía, Física y Computación, 2016.
El estudio estadístico de las series temporales ha sido abordado desde la matemática pura y en el contexto de diversas aplicaciones (metereología, finanzas, etc.). En los últimos años los métodos de estudio de las series temporales se han visto enriquecidos con conceptos y técnicas provistos por la Teoría de la Información y por herramientas provenientes de distintos campos de la física (caos, fractalidad, complejidad, etc.). Los estudios del concepto de complejidad han tenido un gran impacto en varias áreas del conocimiento humano como por ejemplo, las neurociencias, la biología y los sistemas dinámicos no lineales. Por otro lado ha quedado en claro también la relevancia clínica de los estudios realizados a series temporales de origen fisiológico (EEG, ECG, etc.) a través de conceptos tales como caos, auto-organización y otros provenientes del ámbito de la física estadística. La conjunción de todos estos temas aplicados al análisis de series temporales, fundamentalmente de origen fisiológico, constituirá el eje principal de desarrollo de este trabajo.

Стилі APA, Harvard, Vancouver, ISO та ін.

39

Hristova, Mariyana. "Analyse démographique des demandeurs d'asile et des réfugiés au Canada (2000-2010)." Thèse, 2012. http://hdl.handle.net/1866/9214.

Повний текст джерела

Анотація:

La problématique des réfugiés fait partie du cadre plus large des politiques migratoires et de la migration internationale en général. Étant un pays d’immigration, le Canada a dû composer avec plusieurs vagues migratoires et s’y adapter en changeant sa politique d’immigration (au niveau fédéral et provincial) en définissant, en termes numériques, les objectifs annuels d’admission des immigrants (le nombre souhaité d’immigrants), ainsi que les objectifs politiques, humanitaires, économiques et démographiques à long terme. Le groupe visé par le présent rapport (les demandeurs d’asile et les réfugiés) se distingue de toute autre catégorie d’immigration par la spécificité de sa condition - une fuite involontaire et une absence de protection des autorités nationales de leur pays. Au plan international et dans le cadre de la politique canadienne, un réfugié: « l’individu qui fuit la persécution » devient un «demandeur d’asile » au moment de faire face à un processus de reconnaissance du statut de réfugié, conforme aux définitions, aux lois et à la politique d’immigration canadiennes. Les étapes de ce processus sont importantes, parce qu’elles établissent une continuité de la demande d’asile, mais aussi parce qu’elles influencent la comptabilisation et les statistiques sur les demandeurs d’asile et les réfugiés. Les données de Citoyenneté et Immigration Canada figurent parmi les rares sources disponibles donnant à la fois des informations sur les demandeurs d’asile et les réfugiés. Cette population au Canada est mal connue et assez difficile à décrire à cause de la faiblesse des statistiques. Du point de vue démographique, une meilleure connaissance du nombre et de l’évolution des immigrants de la catégorie « demandeur d’asile » ou « réfugié », ainsi que de leurs caractéristiques sociodémographiques (sexe, âge, scolarité, connaissances linguistiques, pays d’origine, etc.) aide à cerner leurs besoins en services et à leur fournir des politiques adéquates d’intégration à la culture et à la vie canadiennes.
The problem of refugees is part of the broader framework of migration policies and international migration in general. As a country of immigration, Canada has had to deal with several waves of migration and to adapt its immigration policy (at the federal and provincial level) by defining, in numerical terms, the annual targets for the admission of immigrants (the desired number of immigrants), as well as its political, humanitarian, economic and demographic objectives. The target group for this report (the asylum seekers and refugees) differs from any other category of immigration by a specific condition – an inadvertent leak and a lack of protection from the national authorities of their country. At the international level and in the context of Canadian politics, a refugee: “the individual who is fleeing persecution” becomes an “asylum seeker” when engaging a process of recognition of refugee status, consistent with the Canadian immigration policy. The steps involved in this process are important because they establish continuity in the application process for asylum, but also because they influence the accounting and statistics on asylum seekers and refugees. The data from Citizenship and Immigration Canada are among the few sources available that provides indication on both asylum seekers and refugees. From a demographic point of view, a better knowledge of the number and the evolution of the immigrants of the category “asylum seeker” or “refugee”, as well as of their sociodemographic characteristics (sex, age, education, language skills, country of origin, etc.) help to identify their needs in services and to provide them with adequate policies of integration to Canada.

Стилі APA, Harvard, Vancouver, ISO та ін.

40

Журба, Вікторія Валеріївна. "Забезпечення та захист прав на освіту іноземних громадян в Україні". Магістерська робота, 2020. https://dspace.znu.edu.ua/jspui/handle/12345/3613.

Повний текст джерела

Анотація:

Журба В. В. Забезпечення та захист прав на освіту іноземних громадян в Україні : кваліфікаційна робота магістра спеціальності 081 "Право" / наук. керівник А. А. Шарая. Запоріжжя : ЗНУ. 2020. 103 с.
UA : Кваліфікаційна робота складається зі 103 сторінок, містить 75 джерел використаної інформації. Право на освіту це одне з найбільш важливих конституційних прав. В Україні добре розвинута сфера освіти, зокрема це якісна підготовка фахівців у різних галузях, і вона є у відкритому доступі для всіх бажаючих і це приваблює іноземних громадян. Для українських закладів вищої освіти важливим фактором в освіті є не тільки число іноземних громадян, а якість, бо висококваліфіковані здобувачі вищої освіти – це ті здобувачі, які представляють українську освіту за кордоном. Однією з важливих форм міжнародного співробітництва для закладів вищої освіти є підготовка здобувачів вищої освіти з числа іноземних громадян. Вона не тільки сприяє зміцненню авторитету України на міжнародній арені, а й є суттєвим джерелом додаткового фінансування освіти. Протягом останніх років спостерігається поступове зростання чисельності здобувачів вищої освіти з числа іноземних громадян, які прибувають на навчання до закладів вищої освіти: 2016 рік – 64066 осіб, 2017 рік – 66310 осіб, 2018 рік – 75605 осіб, 2019 рік – 80470 осіб. Мета роботи є докладний аналіз забезпечення та захист прав на освіту іноземних громадян в Україні. Об’єктом кваліфікаційної роботи є суспільні відносини в сфері забезпечення та захисті прав на освіту іноземних громадян в Україні. Предметом дослідження є забезпечення та захист прав на освіту іноземних громадян в Україні.
EN : Research Paper: 103 pages, 75 references. The right to education is one of the most important constitutional rights. Ukraine has a highly developed system of education, in particular, it is a high-quality training of specialists in various areas, which is in the public domain for everyone and this attracts foreign citizens. For Ukrainian higher education institutions, an important factor in education is not only the number of foreign citizens, but also the quality, because highly qualified applicants for higher education are those who represent Ukrainian education abroad. One of the most important forms of international cooperation for higher education institutions is the preparation of higher education applicants from among foreign citizens. It not only contributes to strengthening the authority of Ukraine in the international arena, but is also a significant source of additional funding for education. In recent years, there has been a gradual increase in the number of applicants for higher education from among foreign citizens who come to study in higher education institutions: 2016 – 64066 people, 2017 – 66310 people, 2018 – 75605 people, 2019 – 80470 people. The objective of the research paper is a detailed analysis of Promotion and Protection the Right to Education of Foreign Citizens in Ukraine. The object of the research paper is public relations in the field of Promotion and Protection the Right to Education of Foreign Citizens in Ukraine. The subject of the research paper is to Promotion and Protection the Right to Education of Foreign Citizens in Ukraine. The methodological basis of the research is a set of philosophical and general scientific principles, approaches and special scientific methods of cognition of constitutional and legal phenomena, the use of which allowed to obtain scientifically sound results. Such general scientific methods as: analysis and synthesis, deduction and induction, structural-functional method, etc. are used in the research.

Стилі APA, Harvard, Vancouver, ISO та ін.

Дисертації з теми "Temporal origin"

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями