Den här uppsatsen behandlar TV-serien Planet Earth ur ett ideologikritiskt perspektiv. I uppsatsen utgår jag från att även en naturdokumentär som Planet Earth är en subjektiv text vilken präglas av kulturella värderingar och ideologiska intressen. Jag granskar hur man valt att presentera naturen och djurlivet, i syfte att klarlägga de värderingar som serien speglar. Planet Earth följer vissa konventioner som finns för denna typ av produktion. Man använder sig av en berättande struktur som innebär fokus på individuella karaktärer, tydliga händelseförlopp och en applicering av gott och ont på djuren. Man koncentrerar sig främst på vissa arter, vilka görs till filmkaraktärer genom ett förmänskligande, och man har avlägsnat människor, teknik och andra historiska referenspunkter ur avsnitten. Att Planet Earth är en kommersiell produkt innebär att potentiellt kontroversiella inslag omöjliggörs, så trots att serien handlar om hotade naturområden ryms ingen direkt debatt kring miljöpolitik.Det slutresultat som vi får levererat till oss genom TV-skärmen är en strukturerad, ordnad bild av naturen, där den förklaras utifrån vår ideologi så att vi lätt kan ta den till oss. Att kritiskt analysera naturfilm är viktigt eftersom naturfilmens version av verkligheten ofta tas som autentisk, och gränser mellan vad som ses som ”naturligt” respektive ”onaturligt” dras. / This Bachelor Thesis focuses on the wildlife documentary TV-series Planet Earth. The documentary is analysed as a cultural text, inevitably influenced by cultural values and ideological interests. The purpose is to examine how the series’ depiction of nature and wildlife reflects these interests and values. How is the series constructed, what choices are made with what consequences? What is the series’ purpose and message? Planet Earth follows certain criteria which is typical for this type of wildlife documentary. A dramatic narrative structure is used, which leads to a focus on individual characters with certain anthropomorphising traits such as good/bad, and chain of events are created through editing. Most traces of civilisation, such as humans or technical equipment have been edited out, along with any historical points of reference and political aspects. The result is a commercially ‘safe’ and emotionally engaging documentary. It is clear that the nature we experience through our TV-screens is a heavily dramatised and arranged version, structured and interpreted from our own ideology so that we easily can understand it. A critical approach to nature documentaries is important, since what we see in these documentaries often is accepted as the truth. This may lead to a naturalisation of the norms and ideological values reflected, as wildlife documentaries is one of the arenas where boundaries between ‘nature’/ ‘culture’, and ‘natural’/ ‘unnatural’ are drawn.

El análisis químico de los meteoritos que más se parecen a la materia que dio lugar a la formación de la Tierra revela que la concentración del gas xenón en la atmósfera de nuestro planeta es menor de la que se debería esperar. Investigaciones recientes parecen indicar que el origen de esta deficiencia podría estar relacionado con la solubilidad de los gases nobles en las vacantes de oxígeno de la estructura perovskita del silicato de magnesio, MgSiO3, principal componente del manto terrestre. / The chemical analysis of the meteorites considered to resemble closely the primordial matter which led to the formation of the Earth indicates that the concentration of xenon gas in our atmosphere is lower than expected. It seems that this deficiency is related to the noble gases’ solubility in the oxygen vacancies present in the perovskite structure of magnesium silicate, MgSiO3, the main constituent of the Earth’s mantle.

Ante la evidente necesidad de comprender los frecuentes cambios negativos que experimenta el planeta Tierra en los suelos, los ríos y la atmosfera y con la idea de intentar mitigar el cambio climático, aparece la química computacional como una rama de la química que nos permite estudiar y predecir diversas propiedadesfisicoquímicas de sistemas moleculares complejos de interés ambiental las cuales son, algunas veces, imposibles de estudiar de forma experimental. El presente artículo muestra un panorama molecular del comportamiento y características fisicoquímicas de algunos contaminantes atmosféricos estudiados a través de la química computacional / The urgent need to understand the frequent negative changes that the planet Earth suffer on its soil, rivers and atmosphere and the need to mitigate climate change makes computational chemistry stand out as a branch of chemistry that allows thestudy and prediction of different physicochemical properties of several complex molecular systems of environmental significance which are sometimes impossible to study in a laboratory. The present article shows a molecular overview of the behavior and physicochemical characteristics of some atmospheric pollutants studied through computational chemistry.

Made available in DSpace on 2015-09-25T12:19:46Z (GMT). No. of bitstreams: 1 Marcia Figueiredo Leite.pdf: 1188074 bytes, checksum: 604cf56aebeabeee9a6405b49c1c86fc (MD5) Previous issue date: 2012-05-25 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / During the northern hemisphere winter the stratospheric polar temperature increases abruptly. On some occasions, the stratospheric polar region experience more intense heating, which are accompanied by a reversal in the zonal mean circulation. These events are classified as sudden stratospheric warming. Some studies showed intense connection between the events of abrupt warming of the Northern Hemisphere polar stratosphere and mesospheric cooling of the region, as well as between these events and disturbances in the mesosphere and the ionosphere at middle and low latitudes, including the equatorial region. The objective of this study was to investigate possible effects of sudden warming event in stratospheric polar temperature behavior of the equatorial region near the menopause. In this sense, temperature data estimated from meteor radar measurements obtained at São João do Cariri-PB (7.4°S, 36.5°W) were analyzed together with data from the polar stratosphere, provided by National Centre for Environmental Prediction (NCEP). Analyzing the results it was found that during the sudden stratospheric warming major the mesopause temperatures on the São João do Cariri are lower than during the stratospheric warming events considered minor. Also was verified an anti-correlation between the equatorial mean mesopause temperature and the temperature in the polar cap (poleward of 60 N) at 10 hPa, during Sudden Stratospheric Warming Major events. / Durante o inverno do hemisfério norte a temperatura da estratosfera polar aumenta de forma brusca. Em algumas ocasiões, a estratosfera polar experimenta aquecimentos mais intensos, os quais são acompanhados de uma inversão na circulação zonal média. Estes eventos são classificados como aquecimentos abruptos estratosféricos (Sudden Stratospheric Warming). Alguns estudos evidenciaram conexão entre os eventos intensos de aquecimento abrupto da estratosfera polar do hemisfério norte e o esfriamento da região mesosférica, assim como entre os eventos e perturbações presentes na mesosfera e na ionosfera em médias e baixas latitudes, incluindo a região equatorial. O objetivo deste trabalho foi investigar possíveis efeitos de evento de aquecimento abrupto da estratosfera polar no comportamento da temperatura da região próxima à mesopausa equatorial. Neste sentido, dados de temperaturas estimados a partir de medidas obtidas com radar meteórico em São João do Cariri-PB (7,4°S, 36,5°O) foram analisados juntamente com dados da estratosfera polar, fornecidos pelo National Centre for Environmental Prediction (NCEP). Analisados os resultados, verificou-se que durante evento intenso de aquecimento abrupto da estratosfera polar, as temperaturas da mesopausa sobre São João do Cariri são mais baixas do que durante os eventos de aquecimento estratosféricos considerados fracos. Também foram verificadas anticorrelações entre a temperatura próxima a região da mesopausa equatorial e a média zonal da temperatura da estratosfera polar durante eventos intensos de aquecimento abrupto da estratosfera.

Systematic Theology / M. Th (Systematic Theology)

Text in Afrikaans. / Summaries in English and Afrikaans / Die mensdom beleef 'n grootskaalse ekologiese krisis vanwee die mens se vermoe om die skepping totaal te vernietig. Gevolglik is die ekologiese krisis ook 'n menslike krisis. Gesien vanuit 'n holistiese oogpunt, kan die oorsaak van die krisis aan die deur gele word van die sogenaamde meganiese-wereldbeskouing. Om dit te verander vra vir 'n radikale verandering in die evaluering van die Heilige Gees se werkinge in die skepping en herskepping. Die skepping is die werk van die Drie-eenheid: God die Vader skep deur die Seun in die krag van die Heilige Gees. Die gedagte van Geesverwaarlosing het aanleiding gegee tot die WRK se tema in Canberra: "Kom Heilige Gees- Vernuwe die Ganse Skepping!" Verandering en venuwing vind alleenlik plaas deur die Heilige Gees wat as agent optree in die proses van herskepping. Deur die Heilige Gees is God immanent in die kosmos. Nie alleen die mens nie, maar ook die res van die skepping word vernuwe en herskep. Dit is God se plan om Sy koningkryk tot die hele kosmos uit te brei. Die mensdom, bekragtig deur die Heilige Gees, moet hul taak as bouers en medewerkers tot opsigte van herskepping met erns opneem. Die doel van hierdie verhandeling is om die allesomvattende rol en werkinge van die Heilige Gees in beide christene sowel as nie-christene, wat in die krag van die Gees van God die skepping onderhou, te bepaal en te omskryf. / Mankind experiences an ecological crisis that is unprecedented because human beings now have it in their power to destroy the creation. Therefore the ecological crisis is also an anthropological crisis. Seen from a holistic perspective, this crisis, caused by the so-called mechanical worldview, calls for a radical change in viewing the work of the Holy Spirit in creation and re-creation. Creation must be seen as a Trinitarian process: the Father creates through the Son in the power of the Holy Spirit. It was the apparent absence of the Holy Spirit in God's creation that led to the WCC theme at Canberra: "Come Holy Spirit, - Renew the Whole Creation!" This change and renewal is to be brought about by the Holy Spirit, who acts as the agent in creating a "new creation". The Holy Spirit represents the personal presence of God in the cosmos, and not only recreates God's people, but nature as well. The design of our world is to be God's kingdom. Humankind, empowered by the Holy Spirit, must be builders and co-workers in a new creation. The purpose of this dissertation is to discern the workings of the Spirit in those people, Christian and non-Christian, who empowered by the Spirit, work to help sustain the creation. / Philosophy, Practical and Systematic Theology / M.Th.(Systematic Theology)

Systematic Theology / M. Th (Systematic Theology)

Text in Afrikaans. / Summaries in English and Afrikaans / Die mensdom beleef 'n grootskaalse ekologiese krisis vanwee die mens se vermoe om die skepping totaal te vernietig. Gevolglik is die ekologiese krisis ook 'n menslike krisis. Gesien vanuit 'n holistiese oogpunt, kan die oorsaak van die krisis aan die deur gele word van die sogenaamde meganiese-wereldbeskouing. Om dit te verander vra vir 'n radikale verandering in die evaluering van die Heilige Gees se werkinge in die skepping en herskepping. Die skepping is die werk van die Drie-eenheid: God die Vader skep deur die Seun in die krag van die Heilige Gees. Die gedagte van Geesverwaarlosing het aanleiding gegee tot die WRK se tema in Canberra: "Kom Heilige Gees- Vernuwe die Ganse Skepping!" Verandering en venuwing vind alleenlik plaas deur die Heilige Gees wat as agent optree in die proses van herskepping. Deur die Heilige Gees is God immanent in die kosmos. Nie alleen die mens nie, maar ook die res van die skepping word vernuwe en herskep. Dit is God se plan om Sy koningkryk tot die hele kosmos uit te brei. Die mensdom, bekragtig deur die Heilige Gees, moet hul taak as bouers en medewerkers tot opsigte van herskepping met erns opneem. Die doel van hierdie verhandeling is om die allesomvattende rol en werkinge van die Heilige Gees in beide christene sowel as nie-christene, wat in die krag van die Gees van God die skepping onderhou, te bepaal en te omskryf. / Mankind experiences an ecological crisis that is unprecedented because human beings now have it in their power to destroy the creation. Therefore the ecological crisis is also an anthropological crisis. Seen from a holistic perspective, this crisis, caused by the so-called mechanical worldview, calls for a radical change in viewing the work of the Holy Spirit in creation and re-creation. Creation must be seen as a Trinitarian process: the Father creates through the Son in the power of the Holy Spirit. It was the apparent absence of the Holy Spirit in God's creation that led to the WCC theme at Canberra: "Come Holy Spirit, - Renew the Whole Creation!" This change and renewal is to be brought about by the Holy Spirit, who acts as the agent in creating a "new creation". The Holy Spirit represents the personal presence of God in the cosmos, and not only recreates God's people, but nature as well. The design of our world is to be God's kingdom. Humankind, empowered by the Holy Spirit, must be builders and co-workers in a new creation. The purpose of this dissertation is to discern the workings of the Spirit in those people, Christian and non-Christian, who empowered by the Spirit, work to help sustain the creation. / Philosophy, Practical and Systematic Theology / M.Th.(Systematic Theology)

Blastodinium, a genus of the phytoplanktonic dinoflagellates, was found to be inhabiting the gut region of the copepod species Labidocera. Copepods are ubiquitous in aquatic environments, being the most numerous multicellular organisms on planet earth. Being primary consumers, they play important ecological roles, passing energy from one trophic level to the next. As zooplankton, estuarine copepods contribute substantially to carbon cycling as they undergo diurnal migration to avoid daylight UV-B damage and surface water predation. Blastodinium are presumed to infect copepods via ingestion of zoospores by juvenile hosts, who function as microhabitats for acquiring nutrients in non-photosynthetic species or in nutrient-limited environments. Blastodinium may hinder reproduction of copepod hosts, thereby influencing local copepod populations and, by extension, food webs up to humanity. Copepod populations may also help contain disease spread, such as malaria and Dengue fever, through their consumption of mosquito larvae in standing water. Further evaluation of copepods for Blastodinium may help shed light on the limited knowledge of this species and the nature of its relationship with copepods, as well as its effects on copepod populations and the higher order consequences of its parasitism.