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Royston-Bishop, George William. "The hydrochemistry of subglacial Lake Vostok, Antarctica." Thesis, University of Bristol, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.431643.
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Richter, Andreas. "Geodätische Arbeiten im Gebiet des subglazialen Lake Vostok." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-170445.
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Richter, Andreas. "Geodätische Arbeiten im Gebiet des subglazialen Lake Vostok." Technische Universität Dresden, 2014. https://tud.qucosa.de/id/qucosa%3A28739.
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ROSSI, ALESSANDRO. "Accelerare lo sviluppo di macchine autonome con Vostok." Doctoral thesis, Università degli studi di Padova, 2022. http://hdl.handle.net/11577/3446028.
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Negli ultimi anni, stiamo assistendo a una diffusione esponenziale di ricerche e applicazioni riguardanti la robotica e la visione artificiale. I robot devono operare autonomamente sulla base di informazioni derivanti da sensori o sistemi di visione. A causa della variabilità di questi dati, è obbligatorio testare la sicurezza, l’efficienza e la robustezza di qualsiasi nuovo algoritmo per mezzo di simulazioni realistiche e affidabili. Parallelamente, manca ancora un prodotto che permetta di accelerare e migliorare la formazione di studenti ed operatori industriali non specializzati. Cercando di affrontare tutti questi problemi in un’unica soluzione, introduciamo un potente software di simulazione, chiamato Vostok, che permette di interagire con robot, sistemi di visione e sensori in un ambiente operativo dinamico. Vostok mira ad aiutare produttori, sviluppatori, ricercatori e studenti fornendo un’interfaccia guidata e facile da usare attraverso la quale progettare, programmare e testare macchine autonome.
Questo lavoro mira a raggiungere tre obiettivi.
1. Fornire una soluzione totalmente gratuita che incoraggi gli individui che vogliono sperimentare la robotica ma non riescono a causa degli alti costi di hardware e software.
2. Permettere alle aziende di testare i nuovi progetti in un ambiente sicuro e, di conseguenza, ridurre i lunghi tempi di installazione. Questo permette agli sviluppatori di implementare il processo di automazione più velocemente e in sicurezza.
3. Sfruttare le tecniche di deep learning a livello industriale. Uno dei problemi principali riguarda la disponibilità di dati per addestrare questi sistemi. Con questo obiettivo in mente, vorremmo essere in grado di generare dataset di immagini sintetiche.
Il lavoro presentato in questa tesi è stato realizzato in collaborazione con Euclid Labs, che ha condiviso le sue idee, l’esperienza e ha fornito gli strumenti necessari per validare i risultati.In the last few years, we are experiencing an exponential proliferation of research and applications concerning robotics and machine vision. Robots are required to autonomously operate based on information derived from sensors or vision systems. Due to the variability in this data, it is mandatory to test the safety, efficiency, and robustness of any new algorithm by means of realistic and reliable simulations. In parallel, there is still a lack of a product that can accelerate and improve the training of students and non-specialized industrial workers. Trying to address all these issues in a unique solution, we introduce a free powerful simulation software, called Vostok, that allows interacting with robots, vision systems and sensors within a dynamic operating environment. Vostok aims to help manufacturers, developers, researchers and students by providing a guided and user friendly interface through which to design, program and test autonomous machines. This work aims to achieve three objectives. 1. Provide a totally free solution that encourages individuals who want to experiment with robotics but fail due to high hardware and software costs. 2. Allow companies testing their projects within a safe environment and, consequently, to cut down long installation time. This enables developers to deploy the automation process faster and more confidently. 3. Exploit deep learning techniques at industrial level. One of the main problems regards the availability of data to train those systems. With this aim in mind, we would like to be able of generating datasets of synthetic images. The work presented in this manuscript was carried out in collaboration with Euclid Labs, who shared their ideas, experience and provided the necessary tools to validate the results.
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Wendt, Anja. "Untersuchungen zu gezeitenbedingten Höhenänderungen des subglazialen Lake Vostok, Antarktika = Investigations of tidally induced height variations of the subglacial Lake Vostok, Antarctica /." Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung, 2005. http://www.gbv.de/dms/goettingen/492177937.pdf.
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Wendt, Anja. "Untersuchungen zu gezeitenbedingten Höhenänderungen des subglazialen Lake Vostok, Antarktika." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2004. http://nbn-resolving.de/urn:nbn:de:swb:14-1088581017093-37766.
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Lake Vostok, der größte der über 70 subglazialen Seen in der Antarktis, ist derzeit einer der Forschungsschwerpunkte der geowissenschaftlichen Polarforschung. Der See erstreckt sich unter einer 4 000 m dicken Eisschicht auf über 250 km Länge mit einer Wassertiefe von bis zu 1 000 m. Ziel der hier vorliegenden Arbeit ist die Untersuchung des Einflusses der Gezeiten auf den Wasserstand des Sees, die eine bisher nicht betrachtete Komponente in der Zirkulation im See darstellen. Auf Grund seiner Ausdehnung ist das Gezeitenpotential an verschiedenen Punkten auf dem See nicht gleich, sondern weist differentielle Unterschiede auf. Unter der Annahme, dass sich die Seeoberfläche entlang einer Äquipotentialfläche ausrichtet, ergeben sich Gleichgewichtsgezeiten des Sees mit Amplituden von bis zu 4,6 mm für die größte ganztägige Tide K1 und 1,8 mm für die größte halbtägige Tide M2. Differenzen des Luftdruckes zwischen Nord- und Südteil des Sees rufen zusätzlich einen differentiellen inversen Barometer-Effekt hervor. Der inverse Barometer-Effekt besitzt im wesentlichen die spektralen Eigenschaften eines roten Rauschens. Die Variationen erreichen bis zu +/- 20 mm. Zum messtechnischen Nachweis derartiger Höhenänderungen an der Eisoberfläche über dem See wurden drei unterschiedliche Verfahren herangezogen. Differentielle GPS-Messungen zwischen einem Punkt auf aufliegendem Eis und einem zweiten in der südlichen Seemitte bestätigen die Modellvorstellungen und zeigen sowohl mit der Luftdruckdifferenz korrelierte Höhenänderungen als auch Höhenänderungen mit ganz- und halbtägigen Perioden. Die SAR-Interferometrie als flächenhaft arbeitende Methode zur Bestimmung von Höhenänderungen lässt den räumlichen Verlauf der Deformation erkennen. Dabei zeigt sich, dass sich die Aufsetzzone auf dem etwa 50 km breiten See bis in die Seemitte ersteckt. Erdgezeitenregistrierungen, die im Jahr 1969 in der Station Vostok durchgeführt wurden, zeigen zwar Auffälligkeiten wie etwa einen stark erhöhten Luftdruckregressionskoeffzienten und einen Phasenvorlauf der K1-Tide, diese können jedoch nicht eindeutig als Resultat von Höhenänderungen der Seeoberfläche identifiziert werden. Auf Grund der Lage der Station Vostok nahe dem Ufer des Sees ist die Deformation dort schon stark gedämpft. Die zu erwartenden Effekte liegen daher unterhalb der Auflösung der damaligen Messungen. Damit sind die theoretischen Grundvorstellungen über die Reaktion des subglazialen Sees auf Gezeiten- und Luftdruckanregungen herausgearbeitet, sowie diese Effekte mit zwei unabhängigen und komplementären Messverfahren nachgewiesenLake Vostok, the largest of more than 70 subglacial lakes in the Antarctic, is one of the prominent topics of recent geoscientific polar research. The lake extends beneath the 4,000 m thick ice sheet to a length of more than 250 km with a water depth of up to 1,000 m. This thesis aims to investigate the influence of tides on the lake level which has not been considered so far in the discussion of water circulation within the lake. Due to the extent of the lake the tidal potential at different positions on its surface is not equal but exhibits a differential effect. Under the assumption of the lake level to be parallel to an equipotential surface the equilibrium tides of the lake yield amplitudes of up to 4.6 mm for the largest diurnal tidal constituent K1 and 1.8 mm for the largest semi-diurnal wave M2. In addition, differences in air pressure between the northern and the southern part of the lake result in a differential inverse barometric effect. This effect shows red noise characteristics with variations of up to +/- 20 mm. Three different types of measurements were used to verify corresponding height changes of the ice surface above the lake. Differential GPS measurements between one station on grounded ice and one in the southern centre of the lake confirm the concept and show height changes correlated to air pressure differences as well as changes with diurnal and semi-diurnal periods. SAR interferometry as a spatial method to determine height changes reveals the areal extent of the deformation with a grounding zone extending to the centre of the about 50 km wide lake. Gravimetric earth tide data recorded at Vostok Station in 1969 show pecularities such as an increased regression with air pressure and a phase lead of the K1 tide. However, these effects cannot be explicitly attributed to height changes of the lake surface. Due to the position of the station near the edge of the lake the effect is highly attenuated and below the noise level of these measurements. This work introduces the concept of the response of the subglacial lake to the tidal potential and to air pressure forcings and presents evidence for the effect by two different techniques proving the validity of the model
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Wendt, Anja. "Untersuchungen zu gezeitenbedingten Höhenänderungen des subglazialen Lake Vostok, Antarktika." Doctoral thesis, Technische Universität Dresden, 2003. https://tud.qucosa.de/id/qucosa%3A24347.
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Lake Vostok, der größte der über 70 subglazialen Seen in der Antarktis, ist derzeit einer der Forschungsschwerpunkte der geowissenschaftlichen Polarforschung. Der See erstreckt sich unter einer 4 000 m dicken Eisschicht auf über 250 km Länge mit einer Wassertiefe von bis zu 1 000 m. Ziel der hier vorliegenden Arbeit ist die Untersuchung des Einflusses der Gezeiten auf den Wasserstand des Sees, die eine bisher nicht betrachtete Komponente in der Zirkulation im See darstellen. Auf Grund seiner Ausdehnung ist das Gezeitenpotential an verschiedenen Punkten auf dem See nicht gleich, sondern weist differentielle Unterschiede auf. Unter der Annahme, dass sich die Seeoberfläche entlang einer Äquipotentialfläche ausrichtet, ergeben sich Gleichgewichtsgezeiten des Sees mit Amplituden von bis zu 4,6 mm für die größte ganztägige Tide K1 und 1,8 mm für die größte halbtägige Tide M2. Differenzen des Luftdruckes zwischen Nord- und Südteil des Sees rufen zusätzlich einen differentiellen inversen Barometer-Effekt hervor. Der inverse Barometer-Effekt besitzt im wesentlichen die spektralen Eigenschaften eines roten Rauschens. Die Variationen erreichen bis zu +/- 20 mm. Zum messtechnischen Nachweis derartiger Höhenänderungen an der Eisoberfläche über dem See wurden drei unterschiedliche Verfahren herangezogen. Differentielle GPS-Messungen zwischen einem Punkt auf aufliegendem Eis und einem zweiten in der südlichen Seemitte bestätigen die Modellvorstellungen und zeigen sowohl mit der Luftdruckdifferenz korrelierte Höhenänderungen als auch Höhenänderungen mit ganz- und halbtägigen Perioden. Die SAR-Interferometrie als flächenhaft arbeitende Methode zur Bestimmung von Höhenänderungen lässt den räumlichen Verlauf der Deformation erkennen. Dabei zeigt sich, dass sich die Aufsetzzone auf dem etwa 50 km breiten See bis in die Seemitte ersteckt. Erdgezeitenregistrierungen, die im Jahr 1969 in der Station Vostok durchgeführt wurden, zeigen zwar Auffälligkeiten wie etwa einen stark erhöhten Luftdruckregressionskoeffzienten und einen Phasenvorlauf der K1-Tide, diese können jedoch nicht eindeutig als Resultat von Höhenänderungen der Seeoberfläche identifiziert werden. Auf Grund der Lage der Station Vostok nahe dem Ufer des Sees ist die Deformation dort schon stark gedämpft. Die zu erwartenden Effekte liegen daher unterhalb der Auflösung der damaligen Messungen. Damit sind die theoretischen Grundvorstellungen über die Reaktion des subglazialen Sees auf Gezeiten- und Luftdruckanregungen herausgearbeitet, sowie diese Effekte mit zwei unabhängigen und komplementären Messverfahren nachgewiesen.Lake Vostok, the largest of more than 70 subglacial lakes in the Antarctic, is one of the prominent topics of recent geoscientific polar research. The lake extends beneath the 4,000 m thick ice sheet to a length of more than 250 km with a water depth of up to 1,000 m. This thesis aims to investigate the influence of tides on the lake level which has not been considered so far in the discussion of water circulation within the lake. Due to the extent of the lake the tidal potential at different positions on its surface is not equal but exhibits a differential effect. Under the assumption of the lake level to be parallel to an equipotential surface the equilibrium tides of the lake yield amplitudes of up to 4.6 mm for the largest diurnal tidal constituent K1 and 1.8 mm for the largest semi-diurnal wave M2. In addition, differences in air pressure between the northern and the southern part of the lake result in a differential inverse barometric effect. This effect shows red noise characteristics with variations of up to +/- 20 mm. Three different types of measurements were used to verify corresponding height changes of the ice surface above the lake. Differential GPS measurements between one station on grounded ice and one in the southern centre of the lake confirm the concept and show height changes correlated to air pressure differences as well as changes with diurnal and semi-diurnal periods. SAR interferometry as a spatial method to determine height changes reveals the areal extent of the deformation with a grounding zone extending to the centre of the about 50 km wide lake. Gravimetric earth tide data recorded at Vostok Station in 1969 show pecularities such as an increased regression with air pressure and a phase lead of the K1 tide. However, these effects cannot be explicitly attributed to height changes of the lake surface. Due to the position of the station near the edge of the lake the effect is highly attenuated and below the noise level of these measurements. This work introduces the concept of the response of the subglacial lake to the tidal potential and to air pressure forcings and presents evidence for the effect by two different techniques proving the validity of the model.
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McGeady, Thomas Daniel. "Outsourced Combatants: The Russian State and the Vostok Battalion." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/76743.
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Shortly after the February 2014 Euromaidan revolution which ousted pro-Russian Ukrainian President Viktor Yanukovych, Russia orchestrated a rapid and mostly bloodless annexation of the Crimea. Following the removal of Ukrainian authority from the peninsula, the Kremlin focused simultaneously on legitimizing the annexation via an electoral reform in Crimea and fermenting political unrest in the Donbas. As violence broke out in the Donbas, anti-Ukrainian government militias were formed by defecting Ukrainian security forces members, local volunteers, and volunteers from Russia. The Kremlin provided extensive support for these militias which sometimes even came in the form of direct military intervention by conventional Russian forces. However, the use of state-sponsored militias by Russia is not a new phenomenon. Since the end of the Cold War, the Russian Federation has been relying on militias to help stabilize local security environments, and more recently, achieve foreign security policy objectives in the Near Abroad. By tracking the history of Vostok (East) Battalion during its two distinctly different iterations, first as a militia for the Yamadayev family which operated primarily in Chechnya as well as briefly in South Ossetia and Lebanon and then as separatist formation in Eastern Ukraine, my thesis seeks to examine why Russia uses militias. Using the theoretical frameworks of principle-agent relations and organizational hierarchy, my thesis examines post-Soviet military reforms to contextualize the Kremlin's rationale for utilizing militia groups as well as analyzing the costs and benefits Moscow ultimately incurs when it leverages militias as force projection assets domestically and in the Near Abroad.Master of Arts
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Shtarkman, Yury M. "Metagenomic And Metatranscriptomic Analyses Of Lake Vostok Accretion Ice." Bowling Green State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1438867879.
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D'Elia, Tom V. "Isolation of Bacteria and Fungi from Lake Vostok Accretion Ice." Bowling Green State University / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1224865593.
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Christner, Brent Craig. "Detection, recovery, isolation and characterization of bacteria in glacial ice and Lake Vostok accretion ice /." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486402288260857.
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Gura, Colby J. "Characterization of Organisms in Vostok (Antarctica) Glacial, Basal, and Accretion Ice." Bowling Green State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1566486484767222.
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Jepsen, Steven Michael. "Intergranular water and permeability of the Lake Vostok accretion ice, Eastern Antarctica." Diss., Montana State University, 2005. http://etd.lib.montana.edu/etd/2005/jepsen/JepsenS1205.pdf.
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Basile, Isabelle. "Origine des aérosols volcaniques et continentaux de la carotte de glace de Vostok (Antarctique)." Phd thesis, Grenoble 1, 1997. http://tel.archives-ouvertes.fr/tel-00756041.
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Déposés en Antarctique de l'Est au cours des 4 derniers cycles climatiques, les aérosols volcaniques (5-50 )um) et continentaux (2-3 )um) de la carotte de Vostok constituent des traceurs de circulations atmosphériques passées. Pour reconstruire leurs trajectoires troposphériques, il est nécessaire d'identifier les sources (volcans ou régions désertiques) à l'origine des émissions des cendres et des poussières continentales. Pour cela, on compare les caractéristiques géochimiques des aérosols avec les caractéristiques des sources potentielles répertoriées. Ces analyses reposent sur les concentrations en éléments majeurs (obtenues par microsonde électronique), en éléments traces (ICPMS), et sur les compositions isotopiques en Strontium et Néodyme (TIMS). Nous avons dû adapter ces méthodes analytiques à la petite taille des aérosols et à leur très faible quantité. Les caractéristiques géochimiques des volcans sources potentiels (latitude>30oS, activité<-500 ka) sont basées sur une synthèse bibliographique. On montre que les cendres des horizons volcaniques analysés proviennent essentiellement de l'arc volcanique des îles Sandwichs (situé dans l'Atlantique Sud, à 5000 km), mais aussi d'Antarctique de l'Ouest et d'Amérique du Sud. De plus, certains horizons peuvent être utilisés comme marqueurs stratigraphiques pour dater (e.g. 141 ka) et corréler les carottes. Les caractéristiques isotopiques (Sr et Nd) des régions désertiques d'Afrique du Sud, d'Australie, du Sud de l'Amérique du Sud, d'Antarctique et de Nouvelle Zélande sont mesurées sur des échantillons prélevés in situ. On remarque qu'il est nécessaire d'utiliser, pour la comparaison avec les aérosols, la fraction granulométrique inférieure à 5 um. Il est ainsi montré que les poussières continentales déposées à Vostok au cours des 4 derniers cycles climatiques proviennent de la Patagonie en période interglaciaire (flux -1,5 mg/m2/an) comme en période glaciaire (flux -20 mg/m2/an). Une partie de cette augmentation de flux peut être expliquée par la présence de vastes épandages de particules détritiques fluvio-glaciaires qui recouvrent, en période glaciaire, la Patagonie et le plateau continental argentin émergé. L'ensemble des sources des aérosols volcaniques et continentaux est donc localisé, quelle que soit la période climatique, dans une région située du côté Atlantique de l'Antarctique, aux moyennes et hautes latitudes. Le transport des particules semble quant à lui être assuré par un courant d'ouest circumpolaire convergent versl'Antarctique. Ce travail montre donc que, à partir des aérosols volcaniques et continentaux, on peut obtenir des paléo-informations dynamiques qui, au travers des corrélations, des datations, ou des modèles de circulation atmosphérique globaux, seront utiles aux reconstitutions des climats du passé.
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Basile, Isabelle. "Origine des aérosols volcaniques et continentaux de la carotte de glace de Vostok (Antarctique)." Phd thesis, Université Joseph Fourier (Grenoble ; 1971-2015), 1997. http://www.theses.fr/1997GRE10170.
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Deposes en antarctique de l'est au cours des 4 derniers cycles climatiques, les aerosols volcaniques (5-50 m) et continentaux (2-3 m) de la carotte de vostok constituent des traceurs de circulations atmospheriques pasees. Pour reconstruire leurs trajectoires tropospheriques, il est necessaire d'identifier leurs sources (volcans ou regions desertiques). Pour cela, on compare les caracteristiques geochimiques (elements majeurs microsonde electronique, traces icpms et compositions isotopiques tims) des aerosols avec les caracteristiques des sources potentielles repertoriees. Nous avons du adapter ces methodes analytiques a la taille des aerosols et a leur faible quantite. Les caracteristiques geochimiques des volcans sources s'appuient sur une synthese bibliographique. On montre que les cendres proviennent essentiellement de l'arc volcanique des iles sandwichs, mais aussi d'antarctique de l'ouest et d'amerique du sud. De plus, certains horizons sont des marqueurs stratigraphiques pour dater (141 ka) et correler les carottes. Les caracteristiques isotopiques (sr et nd) des regions desertiques d'afrique du sud, d'australie, d'amerique du sud, d'antarctique et de nouvelle zelande sont mesurees sur des echantillons preleves in situ. Il est necessaire d'utiliser, pour la comparaison avec les aerosols, la fraction granulometrique inferieure a 5 m. Il est montre que les poussieres continentales proviennent de la patagonie en periode interglaciaire (flux 1,5 mg/m#2/an) comme en glaciaire (20 mg/m#2/an). Une partie de cette augmentation de flux s'explique par la presence de vastes epandages de materiel detritique fluvio-glaciaire qui recouvrent en periode glaciaire la patagonie et le plateau continental argentin emerge. Les sources des aerosols sont donc localisees, quelle que soit la periode climatique, dans une region situee du cote atlantique de l'antarctique, aux moyennes et hautes latitudes. Le transport des particules est assure par un courant d'ouest circumpolaire convergent vers l'antarctique. Ce travail montre que, a partir des aerosols volcaniques et continentaux, on peut obtenir des paleo-informations dynamiques qui, au travers des correlations, des datations, ou des modeles de circulation atmospherique globaux, sont utiles aux reconstitutions des climats du passe.
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Veerapaneni, Ram S. "Analysis and Characterization of Microbes from Ancient Glacial Ice." Bowling Green State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1256565133.
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Erbland, Joseph. "Contraintes isotopiques sur l'interprétation de l'enregistrement en nitrate dans la carotte de glace de Vostok." Phd thesis, Université de Grenoble, 2011. http://tel.archives-ouvertes.fr/tel-00638761.
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L'ion nitrate (NO3-) présent dans les neiges Antarctiques est issus de l'oxydation des oxydes d'azote (NOx = NO + NO2) dans l'atmosphère. Aux sites de faible accumulation de neige tels que Vostok et Dôme C sur le plateau de l'Est de l'Antarctique, le nitrate n'est pas piégé de manière ultime dans la neige, ce qui limite fortement l'interprétation des enregistrements en nitrate dans les carottes de glace. Des mesures récentes de la composition isotopique en azote du nitrate (δ15N) montrent des valeurs extrêmement élevées (+339‰) dans les premiers décimètres de la neige de Dôme C. Ces valeurs ont été attribuées à la photolyse du nitrate et au recyclage important qui en résulte. Le nitrate possède, par ailleurs, une anomalie isotopique en oxygène (Δ17O) qui permet de tracer l'activité de l'ozone (O3) au cours de sa formation. Ce travail de thèse présente le premier enregistrement de la composition isotopique complète du nitrate (δ15N, Δ17O et δ18O) dans une carotte de glace : la carotte de glace de Vostok dont les 64 échantillons analysés couvrent une période de 150 000 ans. Ce jeu de données a été complété par 313 échantillons collectés entre 2007 et 2010 dans le continuum atmosphère/givre/neige au Dôme C ainsi que dans 21 puits de neige prélevés dans une zone couvrant l'essentiel de l'Est de l'Antarctique. L'analyse isotopique de ces échantillons modernes a permis de contraindre le modèle conceptuel TRANSITS développé au cours de cette thèse et dont le but est de représenter le recyclage du nitrate à l'interface entre l'atmosphère et la neige ainsi que son impact sur la composition isotopique du nitrate archivé. Les valeurs positives et élevées du δ15N du nitrate piégé dans la carotte de glace de Vostok montrent que le recyclage du nitrate a toujours eu lieu sur le plateau Antarctique au cours de la période étudiée. Les variations du flux primaire de nitrate reçu au site de Vostok estimées à l'aide du modèle TRANSITS montrent, en périodes glaciaires, un flux primaire plus important qui pourrait être lié à une dénitrification stratosphérique plus conséquente. Les valeurs de Δ17O du nitrate montrent que l'incursion d'ozone d'origine stratosphérique dans la troposphère était plus fréquente en périodes glaciaires. Nous proposons enfin que les résultats acquis dans le cadre de cette thèse pourraient permettre de mieux contraindre le cycle de l'azote sur la côte Antarctique et d'apporter des éléments d'interprétation des enregistrements en nitrate dans les carottes de glace de sites de plus forte accumulation de neige (au Groenland par exemple).
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Christner, Brent C. "Detection, recovery, isolation, and characterization of bacteria in glacial ice and Lake Vostok accretion ice." The Ohio State University, 2002. http://rave.ohiolink.edu/etdc/view?acc_num=osu1015965965.
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Ritz, Catherine. "Un modèle thermo-mécanique d'évolution pour le bassin glaciaire Antarctique Vostok-Glacier Byrd : Sensibilité aux valeurs des paramètres mal connus." Phd thesis, Grenoble 1, 1992. http://tel.archives-ouvertes.fr/tel-00693923.
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Un modèle d'écoulement de la glace est développé en tenant compte du couplage vitesse-température. Ce modèle permet l'étude des réactions d'une calotte polaire aux variations du climat et est appliqués à la ligne de courant "Ridge B - Vostok - Glacier Byrd". (Antarctique de l'Est). Les processus à prendre en compte, les équations de base ainsi qu'une étude bibliographique sont présentés au chapitre (1). Au chapitre (II) dans le but d'interpréter les forages glaciaires, nous développons un outil dans lequel les vitesses d'écoulement sont déduites de la géométrie de la nappe de glace et de l'alimentation par précipitation. A partir du champ de vitesse ainsi calculé, le champ de température est obtenu en résolvant l'équation de la chaleur dépendant du temps avec des conditions aux limites qui tiennent compte de la fusion éventuelle à la base de la calotte de glace ainsi que de la température dans le socle rocheux. Cet outil est utilisé (chapitre III) pour calculer l'âge de la glace dans le carottage de Vostok. Il apparait que la principale incertitude sur la chronologie vient de la mauvaise connaissance de l'accumulation de glace en amont du forage. Le modèle de température permet également d'interpréter le profil de température mesuré à Vostok et d'en tirer des informations sur le flux géothermique et sur l'accumulation. Le modèle thermo-mécanique (chapitre IV) simule l'évolution de l'épaisseur de glace au cours du temps. Les vitesses d'écoulement sont intégrées numériquement et couplées aux température à chaque pas de temps. Un modèle d'ice-shelf est également développé et les déplacements de la ligne d'échouage sont calculés en fonction de la dynamique de la calotte glaciaire et de celle de l'ice-shelf. Des études de sensibilité sont effectuées pour les divers paramètres du modèle. Les variations d'altitude à Vostok pour le dernier cycle climatique sont obtenues et ne dépassent pas 100 m.
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Genthon, Christophe. "Climat a long terme : interpretation des donnees du forage antarctique de vostok, developpement d'un modele dynamique de l'atmosphere en moyenne zonale." Paris 6, 1988. http://www.theses.fr/1988PA066251.
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Les mecanismes de transition climatique a l'echelle de temps des cycles glaciaire - interglaciaires du pleistocene recent sont examines a travers l'etude de donnees du paleoclimat sur 160000 ans. Un modele statistique de reconstruction des variations de temperature a vostok (antarctique) est mis en oeuvre, et suggere une participation importante de l'effet radiatif ("de serre") du dioxyde de carbone atmospherique dans ces transitions. Un modele physique bidimensionnel (latitude-altitude) de l'atmosphere, dynamique aux equations primitives axisymetriques, est aussi decrit. Une telle configuration permet d'atteindre des vitesses d'integration compatibles avec la simulation du paleoclimat. Elle implique aussi que les transports d'energie et de quantite de mouvement par l'activite turbulente de grande echelle des moyennes et hautes latitudes soient parametrises. De telles parametrisations sont proposees, dans le cadre des theories de l'instabilite barocline
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Martinerie, Patricia. "Teneur en gaz des glaces polaires : variations géographiques actuelles, variations au cours du dernier cycle climatique dans la région de Vostok." Grenoble 1, 1990. https://tel.archives-ouvertes.fr/tel-01576069.
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La teneur en gaz (v) de la glace a ete utilisee dans les travaux anterieurs comme indicateur des variations d'epaisseur des calottes polaires en lien avec les changements du climat. Dans ce travail, une serie de tests experimentaux ont montre que la methode de mesure de v utilisee au lgge peut fournir des resultats absolus avec une precision de 1,5%. Un calcul est presente pour corriger les resultats de v de l'effet des bulles coupees en surface des echantillons, qui peut induire des pertes de gaz allant de 1 a 10. Les resultats concernant seize sites de forage permettent une description plus detaillee des variations geographiques actuelles de v avec la pression atmospherique et l'altitude. Ce travail confirme les variations thermiques du volume poreux de la glace au close-off (v#c) et ne montre pas de dependance claire de v#c en fonction de l'accumulation neigeuse. Une partie des ecarts par rapport a une augmentation lineaire de v#c avec la temperature pourrait refleter une influence du vent. Trois techniques analytiques differentes ont ete utilisees pour mesurer les variations de v dans les deux carottes les plus profondes de vostok, qui couvrent le dernier cycle climatique. Les differents resultats sont coherents et revelent des variations rapides et de large amplitude de v. Les contraintes imposees par la dynamique des calottes suggerent fortement que les variations a long terme de v ne peuvent etre interpretees uniquement en termes de variations d'epaisseur de la glace. Les impacts possibles de variations de la pression atmospherique et de variations non thermiques de v#c sont discutes
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Genthon, Christophe. "Climat à long terme interprétation des données du forage antarctique de Vostok, développement d'un modèle dynamique de l'atmosphère en moyenne zonale /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376138413.
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Pepin, Laurence. "Variations de la teneur en CO2 de l'atmosphère au cours des 4 derniers cycles glaciaire-interglaciaires, à partir de l'analyse de la carotte de Vostok (Antarctique) : implications sur l'évolution du climat et du cycle du carbone." Phd thesis, Université Joseph Fourier (Grenoble), 2000. http://tel.archives-ouvertes.fr/tel-00701284.
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Les 420 000 ans d'archives du climat et de la composition de l'atmosphère, constituées par la carotte de Vostok, offrent la possibilité unique de reconstruire l'évolution de la teneur en dioxyde de carbone (CO2) de l'atmosphère au cours des 4 derniers cycles glaciaireinterglaciaires. La représentativité atmosphérique de la teneur en CO2 de cette carotte est discutée en tenant compte des processus physiques susceptibles d'altérer l'information et de la mesure du rapport O2/N2 mise au point au cours de ce travail. La représentativité de l'enregistrement CO2 de Vostok est aussi discutée à partir de sa comparaison avec différents enregistrements glaciaires antarctiques. On constate que la teneur en CO2 de l'atmosphère pendant les interglaciaires est de 280 à 300 ppmv (partie par million en volume) hors de l'influence anthropique, alors que la concentration caractérisant les périodes glaciaires est d'environ 180 ppmv. Ces variations sont à mettre en parallèle à celles de la température en Antarctique qui présente des oscillations d'environ 10°C. Les causes des changements climatiques sont encore mal comprises. En comparant l'évolution temporelle du CO2 à celle des températures aux hautes latitudes Sud et Nord, du niveau des mers et de la quantité de poussières continentales parvenant à Vostok, ce travail met en évidence des liens de causalité possibles entre les variations de ces différentes paramètres. Par confrontation avec d'autres enregistrements climatiques (Groenland, enregistrements marins), nous proposons également des mécanismes susceptibles d'expliquer les changements glaciaire-interglaciaires de la teneur en CO2 de l'atmosphère, ainsi que l'enchaînement des évènements caractérisant les oscillations climatiques. Il ressort de cette étude que le rôle de l'hémisphère Sud semble prépondérant et que l'étendue de la glace de mer, en Atlantique Sud en particulier, pourrait jouer un rôle clef dans la genèse des changements climatiques glaciaire- interglaciaires.
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Tarasova, Natal︠i︡a Anatolʹevna. "Ėkologi︠i︡a mezozooplankton ︠i︡ugo-vostoka baren︠t︡seva mor︠i︡a." Syktyvkar [Russia : Institut ėkologicheskikh problem Severa Uralʹskogo otdelenii︠a︡ RAN], 2003. http://catalog.hathitrust.org/api/volumes/oclc/58810619.html.
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Schwabe, Joachim. "Regionale Geoidmodellierung in Polargebieten." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-172617.
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Der regionalen Schwerefeldmodellierung in polaren Gebieten kommt in vielerlei Hinsicht eine besondere und wachsende Bedeutung zu. Einerseits sind hochauflösende und präzise Geoidmodelle eine wichtige Eingangsgröße bei der Untersuchung und Quantifizierung geophysikalischer, ozeanographischer bzw. glaziologischer Phänomene, z. B. bei der Bestimmung der mittleren dynamischen Ozeantopographie oder der Anwendung des Schwimmgleichgewichts im Bereich von Schelfeisen, Meereis oder subglazialen Seen. Zudem werden sie allgemein zur Referenzierung von Höhenmodellen benötigt. Andererseits sind, aufgrund der unvermeidbaren polaren Datenlücken von Satellitenbeobachtungen jenseits der Grenzbreite (sog. „Polloch“), terrestrische Schweredaten auch für die globale Schwerefeldmodellierung unerlässlich. Jedoch sind die verfügbaren terrestrischen (bodennahen) Schwerebeobachtungen insbesondere im Gebiet der Antarktis äußerst lückenhaft und heterogen. So entspricht das tatsächliche Auflösungsvermögen selbst aktueller kombinierter Schwerefeldmodelle wie EGM2008 oder EIGEN-6C über dem antarktischen Kontinent lediglich dem der reinen Satellitenmodelle aus GRACE bzw. GOCE. Des Weiteren sind Standardverfahren der regionalen Geoidmodellierung hier nicht ohne Weiteres anwendbar. Neben der Heterogenität der Daten als praktischer Herausforderung muss aus theoretischer Sicht dem zusätzlichen Dichtekontrast durch das Eis Rechnung getragen werden. Die vorliegende kumulative Dissertation greift diese Problematik auf. Während die einzelnen Publikationen die Ergebnisse ausgewählter regionaler Fallstudien präsentieren, soll die folgende zusammenfassende Abhandlung einen doppelten Bogen spannen, indem die geophysikalischen Phänomene gleichzeitig als zu untersuchende Anwendungsgebiete und als Einflussfaktoren im Kontext der regionalen Geoidmodellierung beschrieben werden. So wird am Beispiel der Weddellsee gezeigt, wie die Meereisbedeckung die Qualität und Zuverlässigkeit der mithilfe der Satellitenaltimetrie abgeleiteten Schwerefeldmodelle beeinträchtigt. Diese Modelle bilden derzeit die alleinige Datengrundlage für die hochauflösenden globalen Modelle im Gebiet des Antarktischen Ozeans. Zugleich wird anhand des verfeinerten regionalen Modells und daraus abgeleiteter geostrophischer Geschwindigkeiten demonstriert, dass selbst lückenhafte und heterogene terrestrische Daten hier einen wesentlichen Beitrag zur simultanen Kalibrierung und Vereinheitlichung des Datenbestandes leisten können. Im Ergebnis konnten in den küstennahen Gewässern Differenzen von mehreren Dezimetern gegenüber Geoidhöhen aus EGM2008 festgestellt werden, welche teils auf systematische Abweichungen und teils auf Rauschen im globalen Modell zurückzuführen sind. Über dem Festland erreicht dessen Vernachlässigungsfehler im quadratischen Mittel sogar 0,75 m und Maxima von über 3 m. Ein weiteres verfeinertes und, dank geeigneter Eingangsdaten, sehr genaues und hochauflösendes Geoidmodell wird für die Region um den Vostoksee in der Ostantarktis abgeleitet. In Kombination mit Eisoberflächenhöhen und Eisdicken gelingt es, das Schwimmgleichgewicht des subglazialen Sees nachzuweisen. Das gegenüber GOCE zusätzlich gewonnene Geoidsignal ist hier mit 0,56 m Standardabweichung zwar etwas kleiner, jedoch wird im Vergleich mit der residualen Auslenkung des Seespiegels (0,26 m Standardabweichung) auch für diese Anwendung der signifikante und gegenüber dem Auflösungsvermögen von GOCE auch notwendige Beitrag eines regionalen Geoidmodells deutlich. Für das hydrostatische Gleichgewicht eines subglazialen Sees ist streng genommen das tatsächliche Schwerepotential in Höhe des Seespiegels maßgeblich. Dessen Berechnung erfordert eine Fortsetzung des Störpotentials nach unten innerhalb der Topographie, welche konzeptionell in engem Zusammenhang mit dem bekannten Geoid-Quasigeoid-Separationsterm steht. Dessen oft angenommene Approximation mithilfe der Bougueranomalie kann, angesichts der heutigen Anforderungen an ein modernes zentimetergenaues Geoid, gerade in rauem Gelände zu ungenau sein. In Anlehnung an aktuelle Arbeiten auf diesem Gebiet wird ein verallgemeinerter und zugleich verfeinerter Ansatz zur praktischen Berechnung des Terms erarbeitet. Am Beispiel des Himalaya werden die einzelnen Anteile im Rahmen einer Simulationsstudie quantifiziert und insbesondere ihre Sensitivität gegenüber dem Integrationsradius der Topographie untersucht. Besonderes Augenmerk liegt ebenso auf dem indirekten Effekt der Topographie in Bezug auf das Potential, welcher, im Gegensatz zur Anwendung eines planaren Modells, in sphärischer Betrachtungsweise nicht verschwindetIn many respects, regional gravity field modeling in polar areas is of special, and growing, interest. On the one hand, high-resolution and precise geoid models are an important input parameter to investigate and quantify manifold geophysical, oceanographical and glaciological phenomena, e.g., the determination of the mean dynamic ocean topography, or the application of the hydrostatic equilibrium condition in the areas of ice shelves, sea ice, or subglacial lakes. Moreover, geoid models are in general needed as a reference for height models. On the other hand, because of the unavoidable polar data gaps in satellite measurements due to the inclination (the so-called “polar gap”), terrestrial gravity data are indispensable also for global gravity field modeling. However, the available terrestrial (ground-based) gravity datasets, in particular of Antarctica, are very sparse and heterogeneous. For example, over the Antarctic continent the true resolution of even the most recent combined global geopotential models such as EGM2008 or EIGEN-6C only corresponds to that of the satellite-only models derived from GRACE and GOCE, respectively. Furthermore, standard techniques of regional geoid modeling cannot be readily used in this area. Apart from the heterogeneity of the data as a practical challenge the additional density contrast implied by the covering sheet needs to be accounted for from the theoretical point of view. This complex situation is the starting point for the present cumulative dissertation. Whereas the individual publications present the results of selected regional case studies, the intention of the following summary is to draw an integrated picture aiming at explaining the geophysical phenomena as both applications and influencing factors in the context of regional geoid modeling. Using the example of the Weddell Sea it is shown how sea-ice coverage affects the quality and reliability of marine gravity field models derived from radar satellite altimetry. At present, these models are the only input data to the high-resolution global geopotential models. At the same time, the refined regional model and geostrophic velocities derived thereof are employed to demonstrate how even sparse and heterogeneous terrestrial gravity data may provide a contribution to simultaneously calibrate and unify the available datasets. As a result, near the coast differences at the order of some decimeters could be observed in comparison with EGM2008, originating partly from systematic effects and noise in the global model. In the continental areas, its omission error even yields a standard deviation of 0.75 m and attains a maximum of more than 3 m. Another refined and, owing to appropriate input data, very precise and highly resolving geoid model is derived for the region around subglacial Lake Vostok. In combination with ice-surface heights and ice thickness data it is used to provide observational evidence that the lake is in a state of hydrostatic equilibrium. There, the additional geoid signal w.r.t. GOCE is a bit smaller (0.56 m standard deviation). However, considering the residual deviations of the apparent lake level (0.26 m standard deviation) the significant and necessary, as compared to the resolution of GOCE, contribution of a regional geoid model to this application is shown. In a strict sense, the relevant quantity to evaluate the hydrostatic equilibrium condition of a subglacial lake is the actual geopotential at the anticipated lake level. Its computation requires a downward continuation of the disturbing potential inside the topography, which is closely related to the concept of the well-known geoid-quasigeoid separation term. In the past, this term was frequently described as an approximation by means of the Bouguer anomaly. However, considering the modern requirements of the “one-centimeter geoid” this approximation may be too coarse over rough terrain. Following recent works in this field, a generalized yet refined approach for practical implementation of the term is developed. The individual constituents of the term are quantified. In particular, their sensitivity against the radius up to which topography is taken into account is investigated. For this simulation study, the Himalaya mountain region served as test area. Furthermore, special focus is given to the indirect of topography on the potential which, contrary to applying a planar model, does not vanish in the spherical approach
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Olea, Peralta Luis. "El voseo. Un enfoque diasistemático." Tesis, Universidad de Chile, 2005. http://www.repositorio.uchile.cl/handle/2250/110258.
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Stevenson, Jeffrey Lee. "The sociolinguistic variables of Chilean voseo /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/8365.
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Vosloo, Johannes Kristoff. "Rotor delevitation analysis of active magnetic bearing systems / by Kristoff Vosloo." Thesis, North-West University, 2009. http://hdl.handle.net/10394/4917.
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Active magnetic bearing (AMB) systems present an elegant solution to many problems associated with high-speed machinery design and operation. However, AMBs are deficient in that it allows only for contact-free suspension of rotors. Conventional rolling bearings, named backup bearings, are usually installed between the magnetic bearings and the rotor in order to avoid machine damage in the case of suspension failure. Given the critical function fulfilled by backup bearings with respect to system safety, adequacy assessment of these bearings is vital. However, literature on the subject reveals that no established procedures exist in this regard. This need is addressed in the present study by creating computer simulation models which are capable of predicting backup bearing loads during delevitation. This provides a basis on which stress-related failure safety of the backup bearings may be evaluated. The first simulation model which is developed assumes planar dynamics of the rotor and other components. Development of this model mainly serves to resolve computer implementation issues which are relevant to the intended full model. Following development of the first model, a more detailed model is created by major expansion and modification of the developed code. The detailed model accounts for all major effects present during rotor delevitation. These include a rigid rotor model capable of accounting for three-dimensional unconstrained motion, a model of rotor-bearing contact stiffness and a model of the bearing mount stiffness. In order to ensure accurate computer implementation of the models, both are extensively verified by testing against manually obtainable solutions. Following verification, the models are also subjected to a validation process to ascertain the extent to which the models are representative of real-world behaviour. This is done by comparison of model predictions with experimental observations of a practical AMB system.
Many unforeseen problems are encountered during the validation process, hindering detailed validation of the models. Notwithstanding these problems, valuable lessons are learnt which can contribute significantly to improvement of future validation attempts—a greatly lacking aspect of research in the field of rotor delevitation analysis.Thesis (M.Ing. (Mechanical Engineering))--North-West University, Potchefstroom Campus, 2010.
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Villarreal, Pazos Alejandra Gabriela. "El fenómeno del voseo: estado de la cuestión." Bachelor's thesis, Pontificia Universidad Católica del Perú, 2020. http://hdl.handle.net/20.500.12404/19326.
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La presente tesina ofrece una descripción general de la situación actual del voseo en las
diversas regiones hispanohablantes a partir de una revisión de los estudios teóricos y
empíricos que han analizado este fenómeno más recientemente. Con ello, se busca formar
un panorama teórico, histórico, social y lingüístico que funcione como un marco
contextual en posteriores investigaciones empíricas relacionadas con el fenómeno en
cuestión. Los datos recogidos demuestran que el voseo es sumamente complejo tanto a
nivel morfosintáctico como a nivel pragmático y que, además, este tiene una distribución
desigual en Hispanoamérica. Tal información nos indica que este fenómeno no puede ser
estudiado como una unidad lingüística, sino que, por el contrario, su análisis debe estar
geográficamente limitado y necesita partir de las reglas sociales y culturales propias de
cada comunidad voseante. Asimismo, se reconoce que si bien el voseo ha sido
ampliamente estudiado por la tradición hispanista, todavía quedan vacíos en relación con
su historia y también mucha información desconocida o errónea sobre la extensión del
mismo que requiere ser subsanada por próximos estudios.
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Henriksson, Andrea, and Jessica Neljestam. "El voseo : - un estudio sobre el voseo en los libros de texto y en la enseñanza de la escuela primaria en Suecia." Thesis, Mälardalens högskola, Akademin för utbildning, kultur och kommunikation, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-14244.
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La lengua española es la lengua oficial en muchos países y debido a su amplitud presenta muchas variedades lingüísticas. Esta monografía se concentra en el voseo, que es un fenómeno que se da en el habla cotidiana de muchos países latinoamericanos. El propósito es analizar si el voseo está representado en los libros de texto de la escuela primaria en Suecia y si el mismo es enseñado en el aula. Para obtener los resultados, esta monografía parte de un análisis de los libros de texto y una encuesta realizada a profesores de español. El análisis muestra, por un lado, que de un conjunto de seis libros analizados, el voseo solamente es mencionado en dos capítulos; por otro, que los profesores, a pesar de tener conocimientos sobre el voseo, no lo enseñan en el aula. La monografía concluye en que para enseñar voseo es necesario usar material extra como videos, material auditivo, etc. Asimismo, el conocimiento de las variaciones lingüísticas, tales como el voseo, es importante para los alumnos, ya que evitan los prejuicios lingüísticos, además de ser parte de la lengua cotidiana a la cual posiblemente los alumnos tengan la oportunidad de enfrentarse.
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Castedo, Tatiana Maranhão de. "Um estudo sociolinguístico sobre o pronome vos em Santa Cruz de la Sierra." Universidade Federal da Paraíba, 2013. http://tede.biblioteca.ufpb.br:8080/handle/tede/6424.
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Esta investigación se refiere al estudio del pronombre de tratamiento vos, variante de la segunda persona del singular, que suele sustituir el pronombre tú en el español de Bolivia, más específicamente en la comunidad lingüística de Santa Cruz de la Sierra. El trabajo tiene el objetivo de testificar la recurrencia de este pronombre en esta zona geográfica, a fin de acabar con la creencia de que se trata de un pronombre limitado a la región de la Plata y de que es utilizado solamente por una clase social más baja. También buscaremos verificar la coexistencia entre el vos y el tú en esta ciudad, si hay predominancia de alguno sobrte el otro y si hay mayor incidencia en su uso entre hombres y mujeres, grupos etários y clases sociales diferentes. El corpus del trabajo tiene como base el habla de 24 sujetos bolivianos divididos en grupos de escolaridades, fajas etárias y sexos diferentes montado a partir de grabaciones, con vistas a comprobar los objetivos ya citados. Para lograr desarrollar una investigación que busca detectar el uso de una variación morfosintáctica dentro de una dada comunidad, hizo falta insertarla dentro de una base teórica fundada en la sociolingüística variacionista según Labov (1963,1964, 1972). Entonces, la interdependencia entre sociedad y lengua es indudable, ambas ejercen continua influencia recíproca, considerando diversos factores que entran en juego conjuntamente, como la identidad del hablante y del oyente en el diálogo, la relación y nivel socio-cultural entre los interlocutores, la clase social, la edad, el sexo, el origen geográfico, el contexto de comunicación y el mensaje lingüístico. Con el reto de alcanzar nuestros objetivos, fueron realizados dos clases de análisis: el cuantitativo, con la conclusión de la frecuencia de ocurrencias del vos en las grabaciones del corpus, y cualitativa, describiendo situaciones del uso de tal pronombre en diferentes contextos. A través de estos análisis, observamos que em el grupo equivalente a la faja etaria más joven, entre 25 y 50 años, predominó el uso del pronombre personal de segunda persona del singular, vos, con el 91,6% frente al 87,8% de los mayores de 60 años. En cuanto al sexo, podemos constatar prevalencia del uso del vos en el grupo masculino (92,8%) delante del femenino (88,6%) y, en relación a la escolaridad, verificamos una predominancia del uso de este pronombre en el grupo formado por personas con enseñanza primaria incompleta, con el 92,5% de los casos delante del 87,1% del grupo constituido por informantes con enseñanza secundaria y/o nivel superior completo. Ello nos lleva a la conclusión de que, aunque los grupos de los más jóvenes, del sexo masculino y de los pertenecientes al nivel de la primaria incompleto hayan presentado una mayor incidencia en el uso del pronombre vos, la diferencia percentual de estos en comparación a los demás grupos es irrelevante para afirmar que este pronombre no es predominante en el habla de personas mayores de sesenta años, del sexo feminino y de aquellos con secundaria y/o superior completo. Así que, el vos es un pronombre con primacía en la comunidad linguística de Santa Cruz de la Sierra.
Esta pesquisa refere-se ao estudo do pronome de tratamento vos, variante da segunda pessoa do singular que costuma substituir o pronome tú, no espanhol da Bolívia, mais especificamente na comunidade linguística de Santa Cruz de la Sierra1. O trabalho tem o objetivo de testificar a recorrência do pronome vos nesta zona geográfica a fim de minar a crença de que se trata de um pronome limitado à região da Prata2 e de que é utilizado apenas por uma classe social mais baixa. Também buscaremos verificar a coexistência entre o vos e o tú nesta cidade, se há predominância de algum deles e se há maior incidência no seu uso entre homens ou mulheres, entre grupos etários e classes sociais diferentes. O corpus do trabalho tem como base a fala de 24 sujeitos bolivianos, divididos em grupos de escolaridades, sexos e faixas etárias diferentes, montado a partir de gravações, com vistas a comprovar os objetivos já citados. Para lograr desenvolver uma pesquisa que busca detectar o uso de uma variação morfossintática dentro de uma dada comuninade, fez-se necessário inseri-la dentro de uma base teórica pautada na sociolinguística variacionista segundo os preceitos labovianos (1963, 1964, 1972). Considerando a interdependência entre sociedade e língua, já que ambas exercem contínua influência recíprocra, diversos fatores entram em jogo conjuntamente, como a identidade do falante e do ouvinte no diálogo, a relação e nível socio-cultural entre os interlocutores, a classe social, a idade, o sexo, a origem geográfica, o contexto de comunicação e a mensagem linguística. Com o intuito de comprovar nossos objetivos, foram realizadas análises de dois tipos: quantitativa, com o levantamento da frequência de ocorrência do vos nas gravações do corpus, e, qualitativa, descrevendo situações do uso de tal pronome, em diferentes contextos. Através destas análises, observamos que no grupo equivalente à faixa etária mais jovem, entre 25 e 50 anos, predominou o uso do pronome pessoal de segunda pessoa do singular, vos, com 91,6% frente a 87,8% dos maiores de 60 anos. Quanto ao sexo, podemos constatar prevalência do uso do vos no grupo masculino (92,8%) perante o femenino (88,6%) e, em relação à escolaridade, verificamos uma predominância do uso deste pronome no grupo formado por pessoas com nível fundamental incompleto, com 92,5% dos casos diante de 87,1% do grupo formado por informantes com ensino médio e/ou nível superior completo. Isso nos leva à conclusão de que, embora os grupos dos mais jovens, do sexo masculino e dos pertencentes ao nível fundamental incompleto tenham apresentado uma maior incidência no uso do pronome vos, a diferença percentual destes perante os demais grupos é irrelevante para afirmar que este pronome não é predominante na fala de pessoas maiores de sessenta anos, do sexo feminino, bem como daqueles com ensino médio e/ou superior completo. Logo, o vos trata-se de um pronome com primazia na comunidade lingüística de Santa Cruz de la Sierra.
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Rouse, Patrick Roy. "The New Voseo Culto: An Exploration of the Complexity of Familiar Address in Chilean Spanish." ScholarWorks@UNO, 2010. http://scholarworks.uno.edu/td/1118.
Full textAbstract:
In Chilean Spanish, second-person address is non-uniform in that the vos competes with the conventional tuteo and a third, mixed form has emerged. To add to this complexity, the form speakers choose has been shown to correspond to socioeconomic strata. Upper classes use tú, lower classes use vos, and young, middle class speakers choose the mixed form in which the verb is conjugated according to the voseo and is used with the pronoun tú. The causes and effects of this second-person schism in Chile are explored here, as well as the resulting sociolinguistic issues and consequences. In a study of printed media, television and interviewed informants, an attempt is made to confirm and validate the complexity of address in Chilean Spanish and determine the degree of the mixed voseo‟s pervasion into the mainstream.
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Vosloo, Cristel. "A psychometric evaluation of a measure of emotional intelligence for university students / Cristel Vosloo." Thesis, North-West University, 2005. http://hdl.handle.net/10394/940.
Full textAbstract:
Business leaders are increasingly coming to recognise that there is more to business success than
technical and cognitive competence. Personnel leadership is proving to be critical for business
bottom-line achievements considering that most business outcomes are achieved through human
capital. Emotional intelligence can be used to the advantage of organisations by developing an
emotional intelligence audit. The objective of this study was to investigate the psychometric
properties of the Emotional Intelligence Scale (SEIS) developed by Schutte, Malouff, Hall,
Haggerty, Cooper, Golden and Dornheim (1998) for Economic Science students from a higher
education institution in the North-West Province, South Africa. The psychometric soundness of
the SEIS was tested. The general objective of the research is to standardise a psychometric
instrument of emotional intelligence and determine the validity of The Schutte Emotional
Intelligence Questionnaire (SEIS) (Schutte, et al., 1998). Specific objectives include the
conceptualisation of the importance of a standardised psychometric instrument of emotional
intelligence in South Africa; the conceptualisation of the nature and evolvement of emotional
intelligence measurements in general; determining the validity and internal consistency of the
SEIS; and establishing whether any possible group differences in terms of biographical data exist
in emotional intelligence. A valid and reliable measure of emotional intelligence could be
valuable in the organisation to identify specific EI needs that could be developed through the
implementation of EI development programmes. In this context a standardised psychometric
instrument of EI could be of use in organisations during the training and development of
employees.
A cross-sectional method with an availability sample (N = 341) from Economical Science
students from a higher education institution was used. The results supported a six-factor model
of emotional intelligence, consisting of Positive Affect, Emotion-Others, Happy Emotions,
Emotions-Own, Non-verbal Emotions and Emotional Management. The multi-analysis of
variance (MANOVA) was used to determine differences in terms of biographical data. The
results indicated significant differences between gender and language groups. African language
groups compared with Afrikaans and English language groups experienced higher levels of
positive affect. Females compared with males experienced higher levels of understanding of the
emotions of other people.
Recommendations for future research were made.Thesis (M.A. (Industrial Psychology))--North-West University, Potchefstroom Campus, 2006.
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Castelnau, Olivier. "Modélisation du comportement mécanique de la glace polycristalline par une approche auto-cohérente : application au développement de textures dans les glaces des calottes polaires." Phd thesis, Université Joseph Fourier (Grenoble), 1996. http://tel.archives-ouvertes.fr/tel-00748169.
Full textAbstract:
La déformation plastique du monocristaI de glace se produit essentiellement par glissement de dislocations dans les plans de base. Le glissement sur d'autres systèmes ou une éventuelle montée de dislocations basales limite la vitesse de déformation de la glace polycristalline. Dans les glaces des calottes polaires, une orientation préferentielle des axes c se développe au cours de la déformation, induisant une forte anisotropie viscoplastique. Un modèle auto-cohérent viscoplastique (VPSC) est utilisé pour calculer le comportement mécanique de la glace polycristalline et le développement des textures. Les résultats sont comparés à ceux du modèle à contraintes uniformes (borne inférieure) et à déformations uniformes (borne supérieure). Dans les modèles, il est supposé que le monocristal de glace se déforme par glissement basal, prismatique, et pyramidal. La résistance des systèmes de glissement d'un grain in-situ est déterminée à partir de résultats d'essais mécaniques sur des échantillons polycristallins fortement anisotropes. D'après le modèle VPSC, le comportement d'un grain in-situ est semblable à celui d'un monocristal isolé. Ce modèle reproduit parfaitement le comportement expérimental des glaces polycristallines anisotropes. Lorsqu'un polycristal est déformé de telle manière à ce que le glissement basal soit difficilement activé, la direction de la vitesse de déformation est très sensible à la direction de la contrainte, appliquée. De telles conditions de déformation devraient se retrouver dans le voisinage des dômes des calottes polaires. Dans les couches de surface des calottes polaires (zone de grossissement de grains), le modèle VPSC permet d'obtenir une bonne estimation du développement des textures. Dans les glaces plus profondes, on montre que la recristallisation par rotation a une influence significative sur le développement des textures. Une série d'essais mécaniques en laboratoire indique une tendance au comportement newtonien sous de très faibles contraintes.
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Carrasco, Félix. "El paradigma del voseo y la correlación familiaridad/ cortesía: perspectiva diacrónica." Pontificia Universidad Católica del Perú, 2014. http://repositorio.pucp.edu.pe/index/handle/123456789/102187.
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Vosloo, Jan Corné. "A new minimum cost model for water reticulation systems on deep mines / Jan Corné Vosloo." Thesis, North-West University, 2008. http://hdl.handle.net/10394/2528.
Full textAbstract:
In the past, electricity in South Africa was taken for granted. This situation suddenly changed in January 2008, when the electricity supply system threatened to collapse. Energy efficiency was suddenly brought to the fore when steep tariff increases and consumption penalties were enforced on consumers.
The mining sector is affected most severely. The expected tariff increments, together with consumption penalties, will drastically increase production costs. A number of mines will be forced to reduce production or even close in order to avoid these high costs. This will have a negative effect on the South African economy that relies heavily on mining to earn foreign exchange.
In deep level mining, water reticulation is one of the primary consumers of electricity. The refrigeration plants, together with the underground water supply and underground dewatering systems are integrated to form a complete water reticulation system. This system uses up to 41.9% of the total energy consumption on a typical gold mine. It is used to extract hot water from the mine, refrigerate it and distribute the cold water back to underground mining levels. Work has been done on individual elements of dewatering and refrigeration systems to reduce electricity costs. However, no results could be found of an integrated control solution for all aspects of mine water reticulation.
In this study novel techniques were developed to integrate, simulate, optimise and control all elements involved in the water reticulation system. This enables quick assessment of the effect of individual components on the complete system. By integrating all elements into a single system, components can now be optimally controlled without adversely affecting other parts of the system.
These techniques were applied on Kopanang and Tshepong water reticulation systems. The results concluded that over and above conventional demand side management (DSM) initiatives, additional savings could be realised.
An additional outcome was to develop generic models to evaluate and optimise any deep level mine dewatering system. These models were applied on a number of mine dewatering systems. By using these new techniques on only two mines, the average load was reduced by 2.3 MW, which realises annual savings of more than R 3-million (2008 tariffs).
The new models should be applied on all deep level mines to optimise energy consumption on their water reticulation systems. The mining sector can save more than R 20-million annually at 2008 tariffs. It is also suggested that this application be applied to other sectors, such as large water distribution installations.Thesis (Ph.D. (Electrical and Electronic Engineering))--North-West University, Potchefstroom Campus, 2009.
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Lydevik, Maria. "¡Solo vos! : Un estudio sociolingüístico sobre las actitudes hacia el voseo argentino." Thesis, Högskolan Dalarna, Spanska, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:du-13782.
Full textAbstract:
Resumen En este estudio se analizan las actitudes lingüísticas de un grupo de mujeres argentinas, venezolanas y mexicanas residentes en Qatar, Argentina y Suecia en relación con el voseo argentino. Metodológicamente se utilizan tres técnicas: la primera consiste en grabar dos versiones de un texto leído por una persona de Argentina; en la segunda un grupo de informantes escucha el texto grabado y contestan simultáneamente una encuesta que evalúa su postura con respecto al uso del pronombre vos, así como de sus usuarios; la tercera está dedicada a la entrevista, en la cual se pregunta a las informantes argentinas cuál es su opinión acerca del voseo como sinónimo de identidad lingüística. El análisis de los resultados indica que existe una diferencia significativa entre cómo se juzgan las dimensiones de estatus y solidaridad, ya que las entrevistadas dieron un menor valor a los atributos relacionados con la dimensión de estatus que a los de solidaridad. Resumiendo los resultados, se advierte que las argentinas evalúan más positivamente el uso del vos que el tú, confirmando que tienen una posición positiva sobre su identidad lingüística.The purpose of this study is to analyze the language attitudes of Argentines, Venezuelans and Mexicans living in Qatar, Argentina and Sweden towards Argentine voseo. From a methodological perspective, three instruments were used: the first one consists in the recording of a text read by an Argentinian speaking voice; in the second a group of informants listen to the recording and simultaneously answer a questionnaire that assesses their language attitudes regarding the use of the pronoun vos and its users. The third instrument is an interview, in which Argentine informants were asked about their points of view about the voseo as synonymous of their linguistic identity. The analysis shows that there is a difference between how the informants judge the dimensions of prestige and solidarity, since respondents evaluated less the attributes related to the status dimension than those related to solidarity. Summarizing the results, Argentineans evaluated vos more positively than tú, confirming that they have a positive attitude towards their linguistic identity.
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Vosloo, Pieter Gabriël. "A process approach for managing credit asset portfolios in a South African bank / Pieter Gabriël Vosloo." Thesis, North-West University, 2003. http://hdl.handle.net/10394/434.
Full textAbstract:
The operating environment in which banks conduct their business, especially the credit
risk environment, underwent significant changes since the latter half of the previous
decade. Developments have resulted in a bombardment of quantitative and qualitative
credit risk information and data on the one hand, and on the other an absence of a clear
focus and management approach and philosophy to effectively manage credit risk.
The primary objective of the research was the formulation of a process approach that
could be applied in the management of credit risk of credit asset portfolios. Part of the
objective was an implicit requirement that it should form the foundation from where the
management of credit risk can be leveraged to exploit all the dimensions of credit risk
while focussing on the maximisation of shareholder wealth.
A literature study was undertaken to determine the theoretical aspects regarding the
management of credit asset portfolios, credit risk management, the credit portfolio risk
management approach and its principles. An empirical study aimed to establish the credit
risk management practices being applied in the South African Banking Industry.
The process approach developed for managing credit asset portfolios incorporate the
account life cycle as point of departure. This was necessary to facilitate the various
processes that need to be considered for effective credit portfolio risk management. The
specific data requirements, as it culminate in a credit portfolio risk management
functionality, enable the credit portfolio risk management approach and principles to be
applied to credit asset portfolios within the context of two perspectives to credit portfolio
risk management, namely:
> The economic value perspective (also referred to as the shareholder wealth
perspective) which has an ex post focus (after default has occurred) and which
calculates the impact of credit risk on Credit RAROC or shareholder value; and
> The earnings perspective which has an ex ante focus (before default occurs) and
which addresses the bank's loss in income as a result of, and associated with,
deterioration in credit standing (the cash flow implication to be considered when
credit standing deteriorates).
Applying the developed process approach to credit asset portfolios, two distinctive but
dependent dimensions with underlying sub-dimensions to portfolio risk management is
identified namely, micro portfolio risk management and macro portfolio risk
management. The former focuses on the credit asset portfolio and the latter on the group
portfolio in the context of all risks impacting the organisation. The final stage in the
process approach is to establish a Business Health Forum that reports to the Board
appointed committees. The forum ensures an independent view of all the risks and
activities of the business, including credit risk.
Adopting and applying the developed framework regarding the process approach to
managing credit asset portfolios in a South African bank will assist executive
management to ensure that the requirements (processes, systems, data) for effective credit
portfolio risk management are met. It would also broaden the understanding regarding the
interdependency between profit, sustainable growth and effective credit portfolio risk
management.Thesis (Ph.D. (Business Management))--North-West University, Potchefstroom Campus, 2004.
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Mioni, Lino. "The use of "Voi" and "Vostra Signoria" as forms of address in Giovan Battista Giraldi Cinzio's Carteggio." The Ohio State University, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=osu1314291711.
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Vosloh, Daniel [Verfasser], and Mark [Akademischer Betreuer] Stitt. "Subcellular compartmentation of primary carbon metabolism in mesophyll cells of Arabidopsis thaliana / Daniel Vosloh. Betreuer: Mark Stitt." Potsdam : Universitätsbibliothek der Universität Potsdam, 2011. http://d-nb.info/101740769X/34.
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Vosloh, Daniel Verfasser], and Mark [Akademischer Betreuer] [Stitt. "Subcellular compartmentation of primary carbon metabolism in mesophyll cells of Arabidopsis thaliana / Daniel Vosloh. Betreuer: Mark Stitt." Potsdam : Universitätsbibliothek der Universität Potsdam, 2011. http://d-nb.info/101740769X/34.
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Vosloo, Jan Corné. "Control of an underground rock winder system to reduce electricity costs on RSA gold mines / Jan Corné Vosloo." Thesis, North-West University, 2006. http://hdl.handle.net/10394/1283.
Full textAbstract:
This dissertation discusses and presents the necessary steps to identify, simulate and
control an underground rock winder system. This is done to reduce the electricity bill on a
mine without influencing production. These elements were developed for the gold mining
industry in South Africa, as it consumes a big part of the South African electricity supply.
The backbone of this research was based on the time-of-use electricity pricing structure,
and the Eskom Demand Side Management (DSM) program. An Energy Savings
Company (ESCO) usually performs such an energy analysis on mining appliances, and
this thesis can guide the ESCO in completing the project with success.
The tools developed were Real-time Energy Management System (REMS) Winder and
REMS Winder Simulator. These integrated tools aim to predict and control load
management on rock winders.
This system was successfully implemented on Kopanang gold mine in South Africa. The
average load shift obtained in the first month after project completion (June 2006) was
3.5MW, which resulted in a monthly savings of R38,OOO. A pilot study was further
conducted on three other major rock winder systems in the Western-Deep area. From this
study it was found that a maximum evening load shift of 9.5MW and a saving of R1.3
million could be realised.
This research showed that with the necessary historical data and accurate simulations, a
load shifting project can be successfully implemented on a mine's rock winder system.
This new system can be implemented on both platinum and gold mines.Thesis (M.Ing. (Electrical Engineering))--North-West University, Potchefstroom Campus, 2007.
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Ocaranza, Jorgelina Liz Angelini. "La proyección del voseo de Córdoba Capital en el discurso humorístico de la revista Hortensia." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/8/8145/tde-26092018-131512/.
Full textAbstract:
Este trabajo tiene como principal objetivo analizar las proyecciones del voseo, principalmente el que Rona (1967) denomina de tipo III, y su relación con otras formas de tratamiento en el discurso humorístico de la revista Hortensia, creada en el año 1971 en la capital de la provincia de Córdoba (Argentina). En función de estudiar ese objeto, en primera instancia, abordamos aspectos sobre las formas de tratamiento en espacios de habla española, abocándonos al de Argentina y, específicamente al de Córdoba Capital para acercarnos a elementos que nos permitan comprender los funcionamientos que aparecen en nuestro corpus. En un segundo momento, nos aproximamos a las condiciones de producción de la referida revista con el objetivo de comprender su especial significación en la producción mediática y humorística del momento. Finalmente, para el análisis que nos proponemos, recortamos una serie de secuencias discursivas correspondientes a la crônica de Negrazon y Chaveta (producción muy expresiva en el marco de la revista Hortensia) con la finalidad de mostrar cómo aparece representado, a partir de un trabajo de autoría, el referido voseo tipo III, fundamentalmente a partir de la presencia de otras formas de tratamiento como la de tú y la de usted en la interlocución de los personajes de la crônica. Las consideraciones de ese análisis son colocadas en relación con una serie de chistes y de publicidades de la revista, donde aparecen el voseo tipo II y el tipo III (RONA, 1967) entre otras formas de tratamiento. El estudio desarrollado nos permite conocer cómo el trabajo de autoría (ORLANDI, [2001] 2012), especialmente el presente en las secciones abordadas en Hortensia, produce un gesto de interpretación que da visibilidad a las formas del voseo, especialmente a las del tipo III, históricamente vinculadas a una memoria de colonización que se materializó en políticas de lengua que han supuesto exclusión y estigmatización, tanto de formas lingüísticas como de hablantes. En ese sentido, el análisis nos lleva a considerar que el gesto de interpretación presente en Hortensia interrumpe la rutina de tal línea en el funcionamiento de la memoria e, incluso, implica un cierto efecto de legitimación.Este trabalho tem como principal objetivo analisar as projeções do voseo, principalmente aquele que Rona (1967) denomina como voseo de tipo III, e sua relação com outras formas de tratamento no discurso humorístico da revista Hortensia, criada no ano de 1971 na capital do estado de Córdoba (Argentina). Com a função de estudar esse objeto, em uma primeira instância, abordamos aspectos sobre as formas de tratamento em espaços de língua espanhola, concentrando-nos no da Argentina e, especificamente, no espaço da cidade de Córdoba, para nos aproximar dos elementos que nos permitam conhecer os funcionamentos que aparecem em nosso corpus. Em um segundo momento, nos debruçamos sobre as condições de produção da referida revista com o objetivo de compreender sua especial significação na produção midiática e humorística do momento. Finalmente, para a análise que propomos, recortamos uma série de sequências discursivas correspondentes à crônica de Negrazón y Chaveta (produção muito expressiva no espaço da revista Hortensia) com a finalidade de mostrar como aparece representado, a partir de um trabalho de autoria, o referido voseo de tipo III, considerando fundamentalmente a presença de outras formas de tratamento como a de tú e a de usted na interlocução dos personagens da crônica. As considerações desta análise são colocadas em relação com uma série de piadas e de publicidades difundidas na revista e nas quais aparecem o voseo de tipos II e III (RONA, 1967), entre outras formas de tratamento. O estudo desenvolvido nos permite conhecer como o trabalho de autoria (ORLANDI, [2001] 2012), especialmente aquele que está presente nas seções abordadas em Hortensia, produz um gesto de interpretação que proporciona visibilidade às formas de voseo, especialmente o de tipo III, historicamente vinculadas a uma memória de colonização que se materializou em políticas de língua que supuseram a exclusão e a estigmatização tanto de formas linguísticas como de falantes. Nesse sentido, a análise nos leva a falar de que o gesto de interpretação presente em Hortensia interrompe a rotina de tal linha no funcionamento da memória e, também, implica um certo efeito de legitimação.
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Gajic, Nevena. "Human dimensions of natural resource management for the Vosso wild salmon population : A systems thinking approach." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2011. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-15079.
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Vosso, the second-largest watershed in Norway, was considered special as it produced some of the biggest salmon in the country. This salmon had economic, cultural as well as ecological importance. Due to its diversity, it was regarded a unique biological resource. Yet in the late 1980s the stock collapsed, quite abruptly and unexpected. This triggered a large-scale scientific research and eventually led to a rescue project to restore the wild Vosso salmon. The goal of this thesis was to explore the fundamental questions about the impact of human activity on nature and the conflicts of interest that exist within the management for the restoration of the wild salmon population in Vosso. The study aimed to answer the following question: “How does the strategy of the salmon restoration project in Vosso address the human dimensions for the restoration of the wild Vosso salmon population on a short and long term?” A systems approach was used for data collection and analysis. According to Checkland’s Soft Systems Methodology, the researcher first started with an examination of the background of the problem. The second step was to examine systems thinking about the situation. This step was operationalized with help of interviews, a questionnaire, content analyses and a discourse analysis. The third step of SSM required the development of a common understanding of the change and the change processes needed among the stakeholders involved in the rescue project. The strategy of the salmon restoration project in Vosso is mostly directed towards finding the causes for the decline of the Vosso salmon population. The measures taken to restore the salmon are primarily centered on producing salmon and treating sea lice. In the short term, this may lead to an increase of salmons in the river. But, if the sources of salmon threats are not eliminated, the survival of the salmon stock will be at risk, and the goal of reaching a sustainable salmon stock that reproduces naturally will be a challenging one. The inclusion of human dimensions in the rescue project is based on the involvement of people with different world views, neglecting differences in interest and centering on achieving the same objective: a wild salmon population that is able to reproduce naturally. However, salmon management in Vosso disregards long-term human dimensions: those human values embedded in institutions and passed on from generation to generation. For reaching sustainable salmon stocks, it is not only important to involve stakeholders with different values in salmon management, it is also crucial to understand the environmental discourses that trigger these values. This understanding needs to occur at all levels of management that influence the outcome of the salmon restoration project in Vosso. This study has shown that the salmon restoration management is trying to achieve sustainability, while employing a problem-solving discourse of administrative rationalism. For the achievement of a sustainable salmon population, the prevailing discourse of administrative rationalism in salmon management needs to make room for the discourse of sustainability.
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Melgares, Jeriel. "En nombre del voseo: Su incorporación en los estudios universitarios de español dentro del contexto estadounidense." Bowling Green State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1332186951.
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Vosloo, Dorothea Susanna. "Understanding the role of culture during teaching and learning through English second language at a university of technology / Dorothea Susanna Vosloo." Thesis, North-West University, 2011. http://hdl.handle.net/10394/10386.
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This study focuses on understanding the role of culture during teaching and learning through English L2 at the University of Technology; determine the fundamental nature of culture; gain a better understanding of the role of cultural factors that influence L2 teaching and learning of the 1st year students; and propose possible solutions to deal with problems caused by the influence of culture on teaching and learning through English L2. South Africa is a multicultural and multilingual country, a situation which has led to multiracial and multicultural learning institutions. There is, therefore, a need for students in South Africa to develop the skills, knowledge, competence and attitudes to function effectively in a diverse society. The lecturers’ attitudes, knowledge base and cultural competence are also crucial when setting educational goals of acceptance and appreciation of diversity. In this study, a phenomenological design was followed. Interviews were conducted with a carefully recruited sample of participants (i.e. first year students that were all L2 speakers and lecturers who teach in a L2) at a university of technology. The researcher recruited participants by means of purposeful sampling. Twenty students and five lecturers participated in this study. The literature and empirical research indicated that culture and language are inseparable and that culture is important to both students and lecturers. Knowledge of other cultures by both students and lecturers would promote understanding of one another’s cultures and would benefit teaching and learning. Despite the opinion that students would perform better if they were to receive instruction in their mother tongue, they noted the advantages of being taught in English L2, that is, better chances of finding work, becoming communicatively competent in a world where English is spoken by so many people.MEd, Learning and Teaching, North-West University, Vaal Triangle Campus, 2011
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Rivadeneira, Valenzuela Marcela. "El voseo en medios de comunicación de Chile. Descripción y análisis de la variación dialectal y funcional." Doctoral thesis, Universitat Pompeu Fabra, 2009. http://hdl.handle.net/10803/7510.
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Aquest treball se centra en l'estudi del voseo en l'espanyol de Xile a partir d'un corpus oral integrat per 108 hores d'enregistraments de programes de ràdio. Els nostres objectius s'adrecen, d'una banda, a la descripció i l'anàlisi lingüística del voseo, i de l'altra, a l'avaluació quantitativa de l'efecte de determinats factors externs sobre l'ocurrència d'aquest tret. Els resultats obtinguts, pel que fa a la variació dialectal, indiquen que hi ha una alta correlació entre la freqüència d'aparició del voseo i les variables de zona geogràfica, sexe i edat dels parlants. Quant a la variació funcional, es demostra que el grau de formalitat del programa de ràdio és una variable que condiciona clarament la presència de formes amb el tret estudiat. Així, s'ha pogut determinar que en el mitjà radiofònic l'ús del voseo es veu afavorit per contextos comunicatius informals en què participen activament homes del grup adult jove de la zona centre del país.Este trabajo se centra en el estudio del voseo en el español de Chile a partir de un corpus oral compuesto por 108 horas de grabaciones de programas de radio. Nuestros objetivos se orientan, por un lado, hacia la descripción y análisis lingüístico del voseo, y por otro lado, hacia la evaluación cuantitativa del efecto de factores externos sobre la ocurrencia de este rasgo. Los resultados en cuanto a variación dialectal indican que existe una alta correlación entre la frecuencia de aparición del voseo y las variables de zona geográfica, sexo y edad de los hablantes. Por lo que respecta a la variación funcional, se demuestra que el grado de formalidad del programa de radio es una variable que condiciona claramente la presencia de formas voseantes. De esta forma, se ha podido determinar que en los medios de radio, el uso del voseo se ve favorecido por contextos comunicativos informales en los que participan activamente hombres del grupo adulto joven de la zona centro del país
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Horta, Elizabeth. "Se Vosea en Costa Rica." Scholarship @ Claremont, 2010. http://scholarship.claremont.edu/pitzer_theses/18.
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Something happens visiting a Spanish speaking country, where linguistic characteristics are not uniform throughout the country or region. Specifically, this research emerged from lack of knowledge of the pronoun vos, to acquire information to its introduction in the country of Costa Rica, its use, and variants, and the reasoning behind its prevalence in metropolitan regions, and certain regions around the Pitzer College Firestone Center.
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Coe, Agostinho Júnior Holanda. "Nós, os ossos que aqui estamos, pelos vossos esperamos: a higiene e o fim dos sepultamentos eclesiásticos em São Luís (1828 – 1855)." www.teses.ufc.br, 2008. http://www.repositorio.ufc.br/handle/riufc/2841.
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COE, Agostinho Júnior Holanda. Nós, os ossos que aqui estamos, pelos vossos esperamos: a higiene e o fim dos sepultamentos eclesiásticos em São Luís (1828 – 1855). 2008. 140 f. Dissertação (Mestrado em História) - Universidade Federal do Ceará, Departamento de História, Programa de Pós-Graduação em História Social, Fortaleza-CE, 2008.
Discussion about the extinction of church burials and the construction of new cemeteries in São Luís. In the nineteenth century, with the affirmation of medicine, the burials conducted within religious temples became the target of numerous interdictions. The development of “hygienism” gradually constructed the idea that burials within religious temples were harmful to health, since they exhaled miasmatic vapors which caused physical and even moral damages to the living. With the increase of epidemics in the nineteenth century in São Luís, the medical discourse, which claimed for the construction of new cemeteries far from the towns, water fountains, and where the wind blew reversely in relation with the urban environment, acquired further visibility. In 1828, the “Imperial Law of Municipalities Restructuring” became one among various essays of reorganization of São Luís urban space and of construction of new burial places, far away from churches, since the existing cemeteries, up to the middle of the nineteenth century, were basically for poor and helpless. In 1855, after various previous epidemical irruptions, the city was attacked by a big irruption of smallpox, which led the norm into practice, with the building of the Gavião Cemetery. Since then, that cemetery became a burial place not only for indigents and slaves, but also for a considerable part of the wealthier classes of São Luís.
Discussão sobre o fim dos sepultamentos nas igrejas e a construção de novos cemitérios em São Luís. No século XIX, com a afirmação da medicina, os enterramentos realizados dentro dos templos religiosos passaram a ser alvo de merosas interdições. O desenvolvimento do “higienismo” foi gradativamente construindo a idéia de que os sepultamentos nos templos religiosos eram perniciosos à saúde, pois exalavam vapores miasmáticos causadores de malefícios físicos e até mesmo morais aos vivos. Com o acirramento das epidemias, no século XIX, em São Luís, o discurso médico, que primava pela construção de novos cemitérios longe das cidades, das fontes de água e onde os ventos soprassem contrariamente ao ambiente urbano, adquiriu maior visibilidade. Em 1828, a “Lei Imperial de Estruturação dos Municípios” se tornou uma dentre as várias tentativas de reorganização do espaço urbano de São Luís e de construção de novos locais de sepultamento, afastados das igrejas, já que os cemitérios existentes até meados do século XIX eram locais de enterramento basicamente de pobres e desvalidos. Em 1855, após vários surtos epidêmicos anteriores, a cidade é acometida por um grande surto de varíola, que levou a norma à prática, com a construção do cemitério do Gavião. Este passou a ser, a partir de então, local de sepultamento não só de indigentes e escravos, mas também de parte considerável das classes mais abastadas de São Luís.
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Soares, Fernanda Pereira. "Autoritarismo, tecnocracia e natureza: representações da pátria brasileira em o fruto do vosso ventre, de Herberto Sales (1976)." Pontifícia Universidade Católica do Rio Grande do Sul, 2013. http://hdl.handle.net/10923/3961.
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Previous issue date: 2013This research raises questions about the work of the writer Herberto Sales called O fruto do vosso ventre, published in 1976, with the goal to analyze how the civil military dictatorship was represented in this novel and how the Brazilian national identity was reworked in this fiction. Thus, the literary field of this age was approached, to understand in what context this novel is inserted and yours connections with the censure and the governments’ agencies of the time. Then, analyzes one slope of Latin American literature and the specific language of this novel, to locate the work thematically. Lastly, the mosaic allegorical created by Sales is explored through analysis of the works it served as reference, like the Carta de Pero Vaz de Caminha, Iracema by José de Alencar and 1984 by George Orwell. The theoretical basis of this work relied mainly in the writings of Benedict Anderson, Mikhail Bakhtin, Tzvetan Todorov, Herbert Marcuse, Dante Moreira Leite, Marilena Chaui.
Este trabalho busca problematizar a obra O fruto do vosso ventre do escritor Herberto Sales, publicada em 1976, com o objetivo de analisar como a ditadura civil militar foi representada neste romance e como a identidade nacional brasileira foi retrabalhada nesta ficção. Sendo assim, o campo literário desse período foi abordado, para se entender em que contexto este romance está inserido e suas ligações com a censura e os órgãos governamentais da época. Em seguida, analisa-se uma vertente da literatura latino-americana e a linguagem específica desse romance, a fim de localizar a obra tematicamente. Por fim, o mosaico alegórico criado por Sales é explorado através da análise de obras que lhe serviram de referência, como a Carta de Pero Vaz de Caminha, Iracema de José de Alencar e 1984 de George Orwell. A base teórica deste trabalho apoiou-se principalmente nos escritos de Benedict Anderson, Mikhail Bakhtin, Tzvetan Todorov, Herbert Marcuse, Dante Moreira Leite, Marilena Chaui.