Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"atacama desert"”.
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Climatic and Geomorphic Interactions on Alluvial Fans in the Atacama Desert, Chile
Alluvial fan surfaces in the Atacama Desert of northern Chile preserve evidence of recent, precipitation-driven, surface flows. Determining the hydrologic characteristics of these flows is important for understanding the effects of rare yet significant storms in the region. Flow reconstruction, …
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The Mechanism and Timescales of Soil Formation in the Hyper-arid Atacama Desert, Chile
… research is an in-depth exemplary work in the Atacama Desert in northern Chile to understand the soil formation in hyper-arid environments, as an analog for planetary surfaces such as the Mars. In detail, the basic mechanism regarding the source material, timescale, paleo-climatic settings and …
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Past And Present Hydrogeology Of The Atacama Desert, Northern Chile: Human And Natural System Interactions
This work focuses on the past and present hydrogeology of northern Chile from 19[MASCULINE ORDINAL INDICATOR]S to 23[MASCULINE ORDINAL INDICATOR]S and on the research processes itself. Chapter 2 is a study of the landscape evolution and paleohydrology of the northern portion of the Chilean forearc …
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Bacterial Diversity of the Atacama Desert, Chile: The Challenges of Characterizing the Community Dynamics of Extreme Oligotrophic Ecosystems
… diversity of hyperarid and arid regions of the Atacama Desert, Chile, as a first step towards understanding the global biogeochemical significance of arid-land microbial communities. The specific objectives were to characterize bacterial diversity and infer the possible metabolic potential of …
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Characterization of inducible antibiotic production by streptomycetes isolated from hyper-arid environments
… of isolates from extreme environments, e.g. the Atacama Desert in Chile, adapted to those conditions and potentially encoding new specialised metabolites. Another method is to employ a multi-approach strategy for the discovery and elucidation of new metabolites combining genomics and …
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The effect of environmental stress on antibiotic production by streptomyces
… researched locations such as the hyper-arid Atacama Desert in Chile and compare them to more commonly researched North European soil samples which are naturally more hydrated. In this project we studied bacteria isolated from soil samples from Chiles Atacama Desert and the west of Scotland. …
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Results from the QUIET Q-Band Observing Season
… is a ground-based telescope located in the high Atacama Desert in Chile, and is designed to measure the polarization of the Cosmic Microwave Background (CMB) in the Q and W frequency bands (43 and 95 GHz respectively) using coherent polarimeters. From 2008 October to 2010 December, data from more …
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System-level Design, Fabrication, and Optimization of Sorbent-based Atmospheric Water Harvesting Devices
… for record passive water production in the Atacama Desert. Furthermore, we propose an underlying mechanism for observed system-level degradation of our hydrogel-salt composite and demonstrate successful lifetime elongation of the sorbent in SAWH operation. Additionally, we use our …
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A convergence of bodies in the Anthropocene: post-dictatorship memory in Patricio Guzmán’s triptych (2010-2020)
… dictatorship on three natural landscapes (the Atacama Desert, the Patagonian waterways, and the Andes mountains). It argues that, when read together, the documentaries lend themselves to an interdisciplinary analysis of how we might remember state violence committed during the dictatorship of …
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Aymara perspectives: Ethnoecological studies in Andean communities of northern Chile
… one of the most arid regions of the world, the Atacama Desert. Ethnoecological dimensions of the conflict between rapid economic growth and a sensitive cultural and natural resource base are explored through participatory research methods. The recent paving of Chilean Highway 11, the diversion …
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Social Interaction, Integration, and Alliances: Yavi-Chicha Ceramic Production and Circulation in the Border Region of Bolivia, Argentina, and Chile, A.D. 1000-1550
… of Yavi-Chicha pottery in the Chilean Atacama Desert during the LIP and the Inka Period. In particular, I investigate the role of Yavi-Chicha pottery in the interregional interactions, social negotiations, and alliances between Atacama and the Chicha Region by focusing on the value and …
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Petal cell shape and flower-pollinator interaction in Nicotiana
Petal epidermal cell shape has been shown to affect pollination success in flowering plants. Conical epidermal cells may increase grip for insect pollinators and enhance flower colouration compared to non-conical cells. Nicotiana (Solanaceae) presents a diverse range of petal cell shapes. …