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1
Baker, Cynthia Fay. "Phytoplankton in Mt. St. Helens Lakes, Washington". PDXScholar, 1995. https://pdxscholar.library.pdx.edu/open_access_etds/5017.
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Phytoplankton communities in fifteen lakes in the Mt. St. Helens area were surveyed to assess the abundance and species present. Eleven of the lakes were inside the blast zone of the 1980 eruption and four were located outside the blast zone as a comparison. The hypothesis is that lakes will cluster together based on the algal species present and that some algae will be correlated with certain environmental conditions. A cluster analysis was performed to determine if the lakes would group together based on algal abundance. There did not appear to be any distinct clustering among the study lakes, but this analysis did help to sort out some similarities of algal species present between lakes. It demonstrated that the lakes outside the blast zone were not functional as control lakes because they were very different from the blast-zone lakes. They had different assemblages of algae and their origin was so different from the blast-zone lakes that there was little overlap between them. The factor analysis was applied to determine the relationships between environmental variables and phytoplankton. The hypothesis is that certain algae are associated with each other and with identifiable environmental factors. Factor analysis should detect these patterns. The factors represent some condition in the environment but the analysis would be virtually meaningless unless these conditions can be recognized and the factors named. From the factor analysis alone, I could not name the factors but returned to the task after the canonical correlation analysis was performed. The canonical correlation analysis gave some clues to identify the environmental conditions that exert control on these algae. The most useful statistical technique used in this study was the canonical correlation analysis. This analysis is a useful tool in community ecology studies where species-environment relationships can be inferred from community composition and environmental data. The environmental data used was nutrient and light attenuation present at the time the phytoplankton samples were taken. From this analysis I summarized a list of algae and with what environmental conditions that they are associated. Trophic state categories were assigned to the lakes from a trophic state index based on phytoplankton biovolume.
2
Spake, Phillip. "Geothermal Exploration North of Mount St. Helens". Master's thesis, Temple University Libraries, 2019. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/585881.
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GeologyM.S.
Active seismicity and volcanism north of Washington state’s Mount St. Helens provide key ingredients for hydrothermal circulation at depth. This broad zone of seismicity defines the St. Helens Seismic Zone, which extends well north of the volcanic edifice below where several faults and associated fractures in outcrop record repeated slip, dilation, and alteration indicative of localized fluid flow. Candidate reservoir rocks for a geothermal system include marine metasediments overlain by extrusive volcanics. The colocation of elements comprising a geothermal system at this location is tested here by analysis of the structures potentially hosting a reservoir, their relationship to the modern stress state, and temperature logs to a depth of 250 m. Outcrop mapping and borehole image log analysis down to 244 m document highly fractured volcaniclastic deposits and basalt flows. Intervening ash layers truncate the vertical extent of most structures. However, large strike slip faults with well-developed fault cores and associated high fracture density cross ash layers; vein filling and alternation of the adjacent host rock in these faults suggest they act as vertically extensive flow paths. These faults and associated fractures record repeated slip, dilation, and healing by various dolomite, quartz, and hematite, as well as clay alteration, indicative of long-lived, localized fluid flow. In addition, where these rocks are altered by igneous intrusion, they host high fracture density that facilitated heat transfer evidenced by associated hydrothermal alteration. Breakouts in image logs indicate the azimuth of SHmax in the shear zone is broadly consistent with both the GPS plate convergence velocity field as well as seismically active strike slip faults and strike-slip faults mapped in outcrop and borehole image logs. However, the local orientation of SHmax varies by position relative to the edifice and in some cases with depth along the borehole making a simple regional average SHmax azimuth misleading. Boreholes within the seismic zone display a wider variety of fracture attitudes than those outside the shear zone, potentially promoting permeability. Temperature profiles in these wells all indicate isothermal conditions at average groundwater temperatures, consistent with rapidly flowing water localized within fractures. Together, these results indicate that the area north of Mount Saint Helens generates and maintains porosity and permeability suggesting that conditions necessary for a geothermal system are present, although as yet no modern heat source or hydrothermal circulation was detected at shallow depth.
Temple University--Theses
3
Schneider, Andrew Daniel 1982. "Constraints on Eruption Dynamics, Mount St. Helens, WA, 2004-2008". Thesis, University of Oregon, 2009. http://hdl.handle.net/1794/10026.
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xi, 114 p. : ill. A print copy of this thesis is available through the UO Libraries. Search the library catalog for the location and call number.Different models have been proposed for the "drumbeat" earthquakes that accompanied recent eruptive behavior at Mount St. Helens. Debate continues as to whether seismicity is related to brittle failure during the extrusion of solid dacite spines or is the result of hydrothermal fluids interacting with a crack buried in the volcanic edifice. My model predictions of steady-state conduit flow confirm the strong control that degassing exerts on eruptive behavior. I discuss the necessary role of degassing for extruded material to attain the high density (low vesicularity) of the observed spine material and discuss the implications for generating seismicity. A brittle-failure source of seismicity requires that the gouge elastic properties accommodate some strain, since the magma compressibility in the upper conduit is too low to do so on its own. I also report on a novel method for generating high-resolution digital elevation models of fault surface textures.
Committee in Charge: Dr. Alan Rempel, Chair; Dr. Katharine Cashman; Dr. David Schmidt
4
Berlo, Kim. "Time scales of magma evolution at Mount St. Helens". Thesis, University of Bristol, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.432346.
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Kelly, Valerie Jean. "Limnology of two new lakes, Mount St. Helens, WA". PDXScholar, 1991. https://pdxscholar.library.pdx.edu/open_access_etds/3576.
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Coldwater Lake and Castle Lake are two new lakes which were formed in the aftermath of the volcanic eruption of Mount St . Helens, WA in May, 1980. This research describes the limnology of these lakes ten years later, and includes physical, chemical, and biological parameters. The two lakes are compared and contrasted. Previous research on the eruption and its aftermath, as well as earlier studies of the lakes are described.
6
Scharnberg, Larry Duane. "Zooplankton Community Structure in Lakes Near Mt. St. Helens, WA". PDXScholar, 1995. https://pdxscholar.library.pdx.edu/open_access_etds/5050.
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Eighteen lakes around Mt. St. Helens (MSH) were sampled for zooplankton from September '92 until September '94. Samples were enumerated and identified to the species level in most cases. Standard deviation and t-tests were performed to determine the precision of enumeration methods and replication of duplicate tows. Palatability indexes based upon predator preferences were developed and coupled with length-frequency analyses as indicators of predation pressure. The weighted means of the summer samples were then subjected to cluster analysis in an attempt to categorize lakes with respect to zooplankton community structure. Lastly, the community compositions and abundances of MSH lakes were compared to those in lakes on Mt. Rainier and Mt. Hood in an attempt to assess recovery of MSH lakes from the 1980 eruption. Results of analyses indicate the presence of three distinct groups of lakes: 1) A group of lakes with heavy predation resulting in simplified zooplankton communities dominated by Keratella, Ke/licottia, and sometimes cyclopoid species. Predation in these instances can be attributed to extremely high fish or Chaoborus abundance. 2) A second group of lakes characterized by great depth, high transparency, significant abundances of Diaptomus kenai, and moderate to light fish predation. These lakes support balanced zooplankton communities with substantial proportions of Daphnid and calanoid specimens attaining large size. Significant indications of size-specific niche differentiation among the cladocerans are notably absent from these first two groups. 3) A third group consists of lakes which appear to be more productive than the other two groups. This group has higher biovolumes of zooplankton in general, coexistence of several different sized cladoceran species, the highest diversity indices of all the lakes sampled, and moderate predation as indicated by length-frequency analysis. Two conclusions are drawn from the data. First, it appears that predation and primary productivity are both significant factors affecting the abundance and composition of MSH zooplankton communities. Additionally, these data document a significant overlap in zooplankton species in lakes near Mt. Rainier and Mt. Hood, suggesting that the zooplankton communities in lakes around MSH have recovered from the effects of the 1980 eruption.
7
Olson, Keith Vinton. "Inventory and Initiation Zone Characterization of Debris Flows on Mount St. Helens, Washington Initiated during a Major Storm Event in November, 2006". PDXScholar, 2012. https://pdxscholar.library.pdx.edu/open_access_etds/929.
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The heavy precipitation event of November 3-8, 2006 dropped over 60 cm of rain onto the bare southern slopes of Mount St. Helens and generated debris flows in eight of the sixteen drainages outside the 1980 debris avalanche zone. Debris flows occurred on the upper catchments of the Muddy River, Shoestring Glacier, Pine Creek, June Lake, Butte Camp Dome, Blue Lake, Sheep Creek, and South Fork Toutle River. Debris flows were clustered on the west and south-east sides of the mountain. Of the eight debris flows, three were initiated by landslides, while five were initiated by headward or channel erosion. Six debris flows were initiated in deposits mapped as Holocene volcaniclastic deposits, while two were in 1980 pyroclastics on andesite flows. The largest (~975,000 m2) and longest (~8,900 m) debris flow was initiated by landslides in the upper South Fork Toutle River Drainage. The average debris flow initiation zone elevation was 1,750 m, with clusters around 1,700 m and 2,000 m elevation. The lower cluster is associated with basins that host modern or historic glaciers, while the upper is possibly associated with recent pyroclastic deposits. Upper drainages with debris flows averaged 41% slopes steeper than 33 degrees, while those without debris flows averaged 34%. The upper basins with debris flows averaged 6% snow and ice cover, 21% consolidated bedrock, and 74% unconsolidated deposits. Basins without debris flows averaged 3% snow and ice cover, 27% bedrock, and 67% unconsolidated deposits. Drainages with debris flows averaged an 89% loss of glacier area between 1998 and 2009, while those without debris flows lost 68%. Further comparing glacier coverage during that period found that only five of ten glaciers still existed in 2009. On average, the glaciers had reduced in area by 67%, decreased in length by 36%, and retreated by an average of 471 m during that period. Basin attributes were measured or calculated in order to construct a predictive debris flow model based on that of Pirot (2010) using multiple logistic regression. The most significant factors were the percentage of slopes steeper than 33 degrees, unconsolidated deposits in the upper basin, and average annual rainfall. These factors predicted the 2006 debris flows with an accuracy of 94% in a debris flow susceptibility map for Mount St. Helens.
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Schneider, Andrew Daniel. "Constraints on eruption dynamics, Mount St. Helens, WA, 2004-2008 /". Connect to title online (Scholars' Bank), 2009. http://hdl.handle.net/1794/10026.
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Menting, Victor Lee. "The Biogeochemistry of Lakes in the Mount St. Helens Blast Zone". PDXScholar, 1995. https://pdxscholar.library.pdx.edu/open_access_etds/4927.
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Dilution and ash weathering are the most important processes controlling the ion chemistry of lakes in the Mount St. Helens blast zone. Gibbs' models indicated total dissolved solids were decreasing as a result of dilution from high precipitation and runoff and the lakes plot in the rock weathering dominated region. Plots of theoretical dilution curves indicated a decline in ion concentrations as a result of dilution. Ion concentrations followed the exponential decline predicted by the dilution curve, although concentrations were higher than predicted by the curve. Increased concentrations were a result of the rapid weathering of ash in basins and on lake bottoms. Rapid weathering of ash in lake watersheds and on lake bottoms continues to influence the ionic concentrations of the lakes. In general, sodium and potassium have declined at a much faster rate than calcium or magnesium. Slower relative declines in concentrations of calcium and magnesium were a result of more rapid rate of leaching of calcium and magnesium from the ash. Ash in the watersheds will continue to be a major contributor to the overall ion chemistry of the lakes until such time as the watersheds are stabilized by vegetation and a permanent soil layer. Ash on lake bottoms will be unavailable as sources of ionic constituents when it becomes buried within deep sediment layers. Ion concentrations observed in study lakes affected by the eruption were similar to those observed in control lakes with few exceptions. Although ion concentrations in affected lakes have declined to values observed in control lakes, most were at higher concentrations than the regional means. Several functions of the ion chemistry were used to correlate planktonic community structure to lake ion chemistry. The data suggested ion chemistry was not influencing biological community structures as no patterns emerged. Analysis of diatom populations with respect to monovalent:divalent cation ratios showed no correlation.
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Williams, Trevor David. "Surviving Catastrophe: Resource Allocation and Plant Interactions Among the Mosses of Mount St. Helens Volcano". PDXScholar, 2016. https://pdxscholar.library.pdx.edu/open_access_etds/3373.
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Mosses are some of the first colonizers to disturbed sites, yet their roles in early plant community structuring are not well understood. The primary succession zones of volcanoes provide opportunities to conduct natural experiments into how mosses contribute to early plant community formation, as well as how the unique environments found in such zones affect plant traits, particularly those associated with stress tolerance. Though plant community changes have been well-documented since Mount St. Helens (MSH) volcano erupted in 1980, the volcano's moss assemblages, their influence on other plants, and their potential roles in chemical-mediated competition and biogeochemical cycling have garnered little attention. Using a natural stress gradient from primary to secondary succession zones on MSH, and in control and nutrient manipulated test plots, I sought to elucidate how populations of three dominant moss species, Polytrichum juniperinum, Ceratodon purpureus, and Racomitrium canescens, respond to abiotic stress, as well as to provide life history and interaction data on establishment stages of these stress tolerant taxa.
I first analyzed possible tradeoffs in survival strategies of four moss communities in test plots along an abiotic stress gradient. In P. juniperinum, seta specific density (mg/mm) increased significantly in response to nitrogen (N) addition. Differences in both vegetative and sexual reproductive morphological measurements were dependent on site and did not correlate with abiotic stress. In C. purpureus, the percentage of total spores germinated increased with N addition. Site dependent responses in nutrient allocation to vegetative and reproductive structures may be a result of phenotypic plasticity alone or may be a result of local adaptation. In mosses adapted to environmental stress, the allocation of nitrogen must be balanced between growth and survival. Efficient nitrogen uptake confers a competitive advantage if allocated to the higher dispersal of quickly germinating spores.
Second, my results show the moss R. canescens may be able to inhibit the germination rate of co-occurring moss spores when spores were germinated in moss gametophyte infusions. R. canescens may also inhibit the germination of the co-occurring vascular plant Lupinus lepidus when seeds are germinated within intact moss patches. By uncovering chemical-mediated interactions between mosses on the germination and initial growth of neighboring mosses and vascular plants we can gain a better understanding of the mechanisms stress tolerant plants may use to limit resource competition. Such advantages offer insight into how mosses effectively colonize and affect primary succession landscapes.
11
Carpenter, Kurt Davis. "Indicators of Nutrient Limited Plankton Growth in Lakes Near Mount Saint Helens, Washington". PDXScholar, 1994. https://pdxscholar.library.pdx.edu/open_access_etds/4874.
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Several lakes located in the blast zone of the 1980 eruption of Mount St. Helens were studied to determine if the plankton in the lakes were limited in their growth by nitrogen or phosphorus availability. Long term nutrient enrichment experiments were performed on lake water from five lakes and measures of chlorophyll-a, carbon fixation, and nutrient uptake were used to evaluate the extent of limitation. Nutrient concentrations, ratios, and uptake from 14 lakes provided additional evidence for limitation by nitrogen and/or phosphorus. The physical, chemical, and biological characteristics of the lakes were also examined to monitor the return of these lakes to pre-eruption conditions. Lakes heavily impacted by the 1980 eruption (Ryan, Fawn, and Hanaford Lakes) and newly formed Castle Lake produced positive responses to nitrogen additions, reflecting the continuing importance of nitrogen in these lakes. Evidence for colimitation by phosphorous was apparent in some of the lakes. Venus Lake, located near the fringe of the blast zone received less organic debris and responded only with phosphorus additions. Evaluations of nutrient depletion from the photic zones of these lakes during the growing season supported the results from the bioassays. Two measures of growth (chlorophyll-a and carbon fixation) often responded differently to enrichment, suggesting active algal and bacterial communities in some of the lakes. Qualitative measures of alkaline phosphatase activity normalized to chlorophyll-a indicated that those lakes which contained the highest dissolved organic carbon and bacterial counts following the eruption had higher alkaline phosphatase activities than less impacted lakes, suggesting bacterial enzyme production. Alkaline phosphatase activity confirmed that phosphorus limitation was more severe in lakes having less soluble reactive phosphorus. Most of the lakes appear to be similar to other Cascade Mountain lakes, although many have reduced dissolved oxygen concentrations in the bottom waters during stratification. Incomplete mixing of these lakes during periods of circulation may regulate the decomposition of the organic material and hence, full recovery of these lakes.
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Mellors, Robin Anthony. "Studies of volcanism on Santorini, Greece and Mount St. Helens U.S.A". Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.256454.
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Paul, Anne. "Modélisation numérique des déformations d'un édifice volcanique application au Mont St Helens /". Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb376002854.
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Paul, Anne. "Modélisation numérique des déformations d'un édifice volcanique : applications au Mont St Helens". Grenoble 1, 1986. http://www.theses.fr/1986GRE10006.
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La mesure des déplacements de surface liés â l'activité volcanique est une méthode très utilisée dans la surveillance et l'étude des volcans actifs. De nombreux modèles mécaniques ont été réalisés pour tenter de déduire la structure interne de ces données de déplacements, et notamment pour localiser les chambres magmatiques. Mais ils négligent tous le caractère fortement hétérogène et discontinu des édifices volcaniques. Un nouveau modèle permettant précisément l'étude des milieux hétérogènes et fracturés est utilisé. Son hypothèse de base est que l'édifice se comporte comme s'il était constitué d'un assemblage de blocs se déplaçant les uns par rapport aux autres. L'éruption très bien documentée du Mont St Helens (1980) sert de test pour cette méthode de blocs, en permettant de comparer déplacements calculés et déplacements mesurés. Quatre modèles bi-dimensionnels de ce volcan sont construits à partir d'une coupe géologique nord-sud. Chacun d'eux permet de tester l'effet d'un paramètre du modèle (géométrie, conditions aux limites, coefficient de frottement entre blocs, chemin de sollicitation). L'intrusion d'un dôme de lave à l'intérieur du flanc nord est simulée par l'application d'une montée en pression incrémentale puis les modèles sont soumis à une accélération horizontale simulant un séisme. Les résultats de cette modélisation mettent en évidence la dépendance des modes de déformation et de rupture vis à vis du coefficient de frottement entre les blocs. On obtient un assez bon accord avec les observations pour la plus faible des deux valeurs de ce coefficient testées (O. S). La rupture du flanc nord en grand glissement de terrain se produit aussi bien sous la seule influence de la montée en pression que sous pression et séisme combinés. Mais le second type de chargement donne un meilleur accord des résultats avec la réalité, et confirme ainsi qu'un séisme était bien à l'origine de l'éruption. Enfin, on discute, à la lumière de ces résultats, de la possibilité d'appréhender les structures internes et les mouvements du magma, à partir des mesures de déplacements de surface
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Hansen, S. M., B. Schmandt, A. Levander, E. Kiser, J. E. Vidale, G. A. Abers y K. C. Creager. "Seismic evidence for a cold serpentinized mantle wedge beneath Mount St Helens". NATURE PUBLISHING GROUP, 2016. http://hdl.handle.net/10150/622112.
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Mount St Helens is the most active volcano within the Cascade arc; however, its location is unusual because it lies 50 km west of the main axis of arc volcanism. Subduction zone thermal models indicate that the down-going slab is decoupled from the overriding mantle wedge beneath the forearc, resulting in a cold mantle wedge that is unlikely to generate melt. Consequently, the forearc location of Mount St Helens raises questions regarding the extent of the cold mantle wedge and the source region of melts that are responsible for volcanism. Here using, high-resolution active-source seismic data, we show that Mount St Helens sits atop a sharp lateral boundary in Moho reflectivity. Weak-to-absent PmP reflections to the west are attributed to serpentinite in the mantle-wedge, which requires a cold hydrated mantle wedge beneath Mount St Helens (V similar to 700 degrees C). These results suggest that the melt source region lies east towards Mount Adams.
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Wood, David M. "Pattern and process in primary succession in high elevation habitats on Mount St. Helens /". Thesis, Connect to this title online; UW restricted, 1987. http://hdl.handle.net/1773/5234.
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Riker, Jenny Michelle. "Experimental constraints on volatile-driven crystallisation in volcanic systems: A case study at Mount St. Helens". Thesis, University of Bristol, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.629006.
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Degassing and crystallisation are concomitant processes in volcanic systems that together modulate the physico-chemical properties of magmas. The compositions and textures of crystal-bearing volcanic rocks therefore preserve valuable information about the degassing paths experienced by their host magmas. Accurate interpretation of the rock record, however, requires a detailed interpretive framework. This thesis presents the results of high-temperature, high-pressure experiments designed to clarify the mechanisms and manifestations of volatile-driven crystallisation in natural magmas. The well-characterised :Mount St. Helens volcanic system is taken as a case study. Isothermal phase equilibria experiments in P- XH20 space establish the fluid-composition dependence of phase relations in Mount St. Helens (Sugar Bowl) rhyodacite. Parameterisation of experimentally derived data enables simulation of magmatic properties across a wide range of parameter space. This approach has been applied to investigate the equilibrium evolution of phase assemblages, abundances, and compositions along different H20 - C02 degassing trajectories. Experimental decompression of magmas saturated with H20 and H20 -C0 2 fluids further demonstrates that plagioclase textures are strongly modulated by the isothermal decompression (PH20 - t) path. The presence of CO2 increases crystal nucleation rates relative to the pure-water case, while growth on pre-existing crystals contributes significantly to added crystallisation at a range of decompression conditions. Comparison of crystal textures in experimental samples and natural pyroclasts are used to interpret changing magma storage conditions during the summer 1980 explosive- effusion transition at Mount St. Helens. Finally, the behaviour of magmatic volatiles in the shallow crust is ultimately modulated by the nature and abundance of vapour exsolved at depth. To this end, this research presents new constraints on water solubility in silicic melts at lower crustal pressures, where experimental determinations are sparse. Together with data from lower pressures, these experiments define a continuous solubility curve in the Sugar Bowl rhyodacite from 0.1- 1.1 GPa. Saturation water contents suggest that the presence of fluid-saturated, evolved melts is likely in the deep crust.
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Bishop, John G. "Demographic and population genetic variation during colonization by the herb Lupinus lepidus on Mount St. Helens /". Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/5177.
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Bakkegard, Kristin Ann. "The Genetics of Colonization in Two Amphibian Species After the 1980 Eruption of Mount St. Helens". DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/77.
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The genetics of colonization is understudied in salamanders but has large conservation implications as new habitats are formed or restored to their previous condition. The 1980 eruption of Mount St. Helens provided a natural experiment to study the genetic effects of a large infrequent environmental disturbance on two species of salamander, Taricha granulosa (Rough-skinned newt) and Ambystoma gracile (Northwestern salamander). Both these species breed in ponds, and are thought to exhibit high breeding site fidelity and low vagility. I designated three treatments based on the effects of the eruption: new ponds (created by the eruption, immigrants only), recovery lakes (in blast zone, survivors plus immigrants), and reference lakes (unaffected by eruption, assumed to represent pre-eruption genetic diversity measures). Salamanders took at least nine years to colonize the new ponds. I studied the population genetics of colonization and recovery using microsatellites and AFLPs (amplified fragment length polymorphisms) to measure genetic diversity, gene flow, and population substructure at Mount St. Helens National Volcanic Monument. Based on population genetics theory and the life history characteristics of these pond-breeding amphibians, I predicted that genetic diversity would be lower in newly colonized ponds compared to recovery or reference sites. I also expected significant levels of population substructuring. Finally, I predicted that because of their lower vagility and large number of neotenes, that A. gracile would have less gene flow and a greater degree of population substructuring than T. granulosa. My predictions were not supported by my data. There was no loss of genetic diversity in new or recovery populations in either species. There was no strong evidence for population substructure by either AMOVA, isolation by distance or principal components analysis. Gene flow (Fst) was high in both species. Taricha granulosa and A. gracile were found to be resistant to a large infrequent environmental disturbance. Loss of genetic variability in new populations cannot automatically be assumed. Predicting dispersal and colonization ability based on the broad category of pond-breeding amphibian is not always reliable.
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Meadows, Tim. "Forecasting long-term sediment yield from the upper North Fork Toutle River, Mount St. Helens, USA". Thesis, University of Nottingham, 2014. http://eprints.nottingham.ac.uk/27800/.
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The Toutle-Cowlitz River system experienced dramatic landscape disturbance during the catastrophic eruption of Mount St Helens on May 18, 1980. The eruption was triggered by a 2.5 km3 debris avalanche which buried the upper 60 km2 of the North Fork Toutle River catchment to an average depth of 45 m and obliterated the surface drainage network. Subsequent channel response on the debris avalanche, dominated by incision and widening, has delivered significant quantities of sediment to downstream reaches where resultant deposition has reduced channel capacity and heightened flood risk. Estimates of future sediment yield from the upper North Fork Toutle River are therefore required to inform development of sustainable options for long-term flood risk mitigation. Previous estimates have been based on extrapolation of post-eruption trends in sediment yield and channel network evolution, but the divergent predictions reported in a number of studies have clouded effective decision-making regarding long-term sediment management. This study therefore uses a numerical, landscape evolution model (CAESAR-Lisflood) to make long-term forecasts of sediment yield based on process simulation rather than extrapolation. A suite of forecasts of cumulative catchment sediment yields up to 2100 are produced using scenario-based model runs designed to account for uncertainty associated with the hydrological impacts of climate change and the model coefficient for lateral mobility. The forecasts fall in a narrow band +/-20% of the mean that lies between two previous estimates derived from the extrapolation of post-eruption trends. Importantly, predicted trends in future annual sediment yield are predominantly linear, although some limited decay is evident for runs in which modelled channel lateral mobility is lower. Sustained sediment production in the upper North Fork Toutle River is found to result from persistent bank erosion and channel widening. These findings cast doubt on the applicability of negative exponential decay functions based on the rate law to characterise post-disturbance sediment yield when lateral rather than vertical adjustments dominate channel evolution. Moreover, forecast trends in future sediment yield suggest that it may not be possible to manage future sediment-related flood risk along the lower Cowlitz solely by retaining sediment in the upper North Fork Toutle River catchment.
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Friedlander, Elizabeth Anne. "The nature and evolution of conduit faults in the 2004-2008 Mount St. Helens lava dome eruption". Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/40473.
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Mount St. Helens reawakened 24 years after erupting in the 1980’s. This effusive eruption produced 95 million cubic meters of dacite in the form of 7 discrete, competent spines or domes of lava between September 2004- June 2008. The spines comprise low-porosity dacite that is inferred to have crystallized at a depth of about 1 km and are enveloped by a 1-3 meter carapace of fault gouge. The rate of linear extrusion of the spines peaked at 11 m/day in November 2004 and subsequently slowed to < 0.5 m/day. Dome growth was accompanied by a “drumbeat” seismicity that was sourced from 1-0.5 km below the vent.
Here, field, petrographic, and microstructural observations on the nature of deformation attending the extrusion of Spines 4, 5 and 7 at Mount St. Helens (2004-2006) are presented. The enveloping fault zones provide a static view of the cumulative strain produced by shear along the conduit wall. The conduit faults narrow from Spine 4 to Spine 7 and exhibit fewer macroscopic brittle features. Strain accommodation is achieved through a scale-dependent ductility.
The subsurface ascent velocities for each packet of magma are reconstructed using surface observed extrusion rates. Computed shear strain rates for the margins of the conduit range from 1x10⁻⁴ to 7.9x10⁻⁵ s⁻¹. As ascent rate decreases, fault zone width also decreases maintaining an average shear strain rate of 4.3x10⁻⁵ s⁻¹. Intense strain localization within each fault zone is expressed by 0.001 m thick slickensides implying very high (co-seismic) transient shear-strain rates of 1x10⁻¹s⁻¹ (Spines 4-5) to 2.2x10⁻²s⁻¹ (Spine 7).
I conclude with a time and space model for the evolution of the fault zone as magma ascends the conduit, and how the fault zones evolve through time. The factors that contribute to the differences in conduit fault zone width and nature throughout the eruption are: 1) differences in ascent rates at the onset and origin of brittle failure, 2) variations in shear strain rates, 3) and the increasing residence time throughout the eruption that the damaged fault rocks experienced at high temperatures within the conduit.
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Hawes, Richard Anthony. "The paradise of every nuisance : the development of municipal public health services in St. Helens, 1868-1914". Thesis, University of Liverpool, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316149.
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Beattie, Maureen A. "The effect of natural disasters on tourism : a study of Mount St. Helens and Yellowstone National Park /". Online version of thesis, 1992. http://hdl.handle.net/1850/11110.
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Banker, Samantha R. Z. "Utilizing geographic information systems to identify potential lahar pathways in proximity to Cascade Stratovolcanoes Mount Saint Helens, Cowlitz & Skamania counties, Washington as case study : a thesis presented to the Department of Geology and Geography in candidacy for the degree of master of science /". Diss., Maryville, Mo. : Northwest Missouri State University, 2008. http://www.nwmissouri.edu/library/theses/BankerSamanthaRZ/index.htm.
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Thesis (M.S.)--Northwest Missouri State University, 2008.The full text of the thesis is included in the pdf file. Title from title screen of full text.pdf file (viewed on July 25, 2008) Includes bibliographical references.
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Proctor, Sarah. "Fluvial Biogeomorphic Evolution of the Upper South Fork Toutle River, WA After the 1980 Eruption of Mount St. Helens". Thesis, University of Oregon, 2017. http://hdl.handle.net/1794/22293.
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The eruption of Mount St. Helens in 1980 severely impacted the woody vegetation within the geomorphic floodplain as well as the morphology of the Upper South Fork Toutle River. Historic aerial imagery and LiDAR data were used in combination to create snapshots of the channel and vegetation in 1980, 1983, 1996, 2003, and 2014. This data was mapped and analyzed using GIS, with the primary focus on 2D channel change, vegetation change, and channel-vegetation interactions from 1980 to 2014. No vegetation was discernable in 1980-83 but the vegetation present in 1996 increased in area and in density from 1996 to 2014. The number of channels locations were dependent on vegetation density and presence while vegetation growth occurred predominately in areas previously occupied by the channel.
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Chapin, David Meyer. "Physiological and population ecology of two subalpine herbs on Mount St. Helens : contrasting strategies to a stressful environment /". Thesis, Connect to this title online; UW restricted, 1986. http://hdl.handle.net/1773/5272.
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Yamaguchi, David Kay. "The development of old-growth Douglas-fir forests northeast of Mount St. Helens, Washington, following an A.D. 1480 eruption /". Thesis, Connect to this title online; UW restricted, 1986. http://hdl.handle.net/1773/5566.
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Gaunt, H. E. "Experimental study of permeability under simulated volcanic conditions on lava dome rocks from Mount St. Helens : constraints on degassing and eruption style". Thesis, University College London (University of London), 2014. http://discovery.ucl.ac.uk/1426442/.
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The research presented in this thesis integrates field observations and sampling, data from controlled laboratory experiments with a radially-symmetric fluid flux model to investigate permeability controls on degassing processes operating during lava dome eruptions at silicic volcanoes. Laboratory permeability measurements were made on samples collected systematically across the marginal shear zone of a lava spine at Mount Saint Helens (MSH), Washington, USA, from the 2004-08 eruption, at room temperature and confining pressures up to 85 MPa. Permeability experiments were also performed on samples of massive dacite from the spine core at a range of temperatures up to 900°C and a confining pressure of 10 MPa. A simplified radially-symmetric fluid flux model was developed which incorporated the observed structure of the conduit at Mount Saint Helens and the measured permeability profile to show the effects of the permeability on the magnitude and direction of fluid flow. Permeability was found to be essentially isotropic in the conduit interior but highly anisotropic in the marginal shear zone rocks. Vertical permeability in the marginal rocks is increased by two orders of magnitude, through the formation of an aligned shear fracture network. Ultracataclasite shear bands in the fault core also decreased the horizontal permeability by two orders of magnitude. Permeability was also seen to decrease by around four orders of magnitude as temperature was increased to 900°C. In contrast to previous work that assumed significant lateral transport of gases, modeled fluid flow using the experimentally determined permeability data shows that the vertical volatile volumetric flow rate will be orders of magnitude greater than the horizontal rate into the wall rock; more than 90% of volatile flow would have been partitioned vertically within the conduit-margin fault zone, consistent with the location of gas and ash venting during the eruption. Changes in permeability with temperature indicate that magma rising in the conduit becomes progressively more permeable to gas escape during ascent and crystallisation. When applied to gas sealing processes, the intrusion of molten lava under a solidified plug and the associated heating may cause the permeability of the overlying rock to decrease sufficiently that gas escape is inhibited, allowing for the build up of pressure and potentially an explosive eruption.
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Underwood, Sandra Jean. "Stable isotope (18 O/16 O and D/H) studies of cascade volcanic arc magmatism". Thesis, Montana State University, 2009. http://etd.lib.montana.edu/etd/2009/underwood/UnderwoodS0509.pdf.
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Pereira, Adalucami Menezes. "ResÃduos dos valores morais cristÃos da Idade MÃdia na obra Helena, de Machado de Assis". Universidade Federal do CearÃ, 2010. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=5545.
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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel SuperiorA presente pesquisa, vinculada à linha Literatura e HistÃria, tem como objetivo ressaltar a presenÃa dos valores morais cristÃos presentes na obra Helena, de Machado de Assis. AtravÃs da Teoria da Residualidade, pretendemos demonstrar as influÃncias culturais, histÃricas e ideolÃgicas recebidas por nosso povo, principalmente no que concerne aos preceitos catÃlicos. Todavia, pretendemos comprovar serem essas manifestaÃÃes, remanescÃncias da mentalidade medieval do sÃculo XIII. Apresentada atravÃs de resÃduos, essa mentalidade originou um imaginÃrio hÃbrido que colonizou o pensamento moral de nosso paÃs. à tambÃm nosso intuito comprovar que o romance Helena evidencia as virtudes dos personagens do enredo, como forma de perpetuar esses valores morais. Por fim, enfatizaremos a conduta da protagonista Helena, como exemplo de dignidade ilibada.
This research, linked to on line literature and history, aims to highlight the presence of Christian moral values present in the work Helena by Machado de Assis. Through the Theory of Residuality, we intend to demonstrate the cultural, ideological and hysterical received by our people, especially when it concerns me to Roman Catholic beliefs. However, we intend to prove these manifestations are remnants of the medieval mindset of the thirteenth century. Submitted by waste, that mentality led to a hybrid imagery that colonized the moral thinking of our country. It is also our intention to prove that the novel Helena highlights the virtues of the characters of the plot, as a way of perpetuating these moral values. Finally, emphasizing the behavior of the protagonist Helen, as an example of dignity unblemished.
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Lehto, Heather L. "Investigation of Stress Changes at Mount St. Helens, Washington, and Receiver Functions at the Katmai Volcanic Group, Alaska, with an Additional Section on the Assessment of Spreadsheet-based Modules". Scholar Commons, 2012. http://scholarcommons.usf.edu/etd/4124.
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Forecasting eruptions using volcano seismology is a subject that affects the lives and property of millions of people around the world. However, there is still much to learn about the inner workings of volcanoes and how this relates to the chance of eruption. This dissertation attempts to increase the breadth of knowledge aimed at helping to understand when a volcano is likely to erupt and how large that eruption might be. Chapters 2 and 3 focus on a technique that uses changes in the local stress field beneath a volcano to determine the source of these changes and help forecast eruptions, while Chapter 4 focuses on a technique that shows great potential to be used to image magma chambers beneath volcanoes by using receiver functions.
In Chapters 2 and 3 the source mechanisms of shallow volcano-tectonic earthquakes recorded at Mount St. Helens are investigated by calculating hypocenter locations and fault plane solutions (FPS) for shallow earthquakes recorded during two eruptive periods (1981-1986 and 2004-2008) and two non-eruptive periods (1987-2004 and 2008-2011). FPS show a mixture of normal, reverse, and strike-slip faulting during all periods, with a sharp increase in strike-slip faulting observed in 1987-1997 and an increase in normal faulting between 1998 and 2004 and again on September 25-29, 2004. FPS P-axis orientations (a proxy for ó1) show a ~90° rotation with respect to regional ó1 (N23°E) during 1981-1986 and 2004-2008, bimodal orientations (~N-S and ~E-W) during 1987-2004, and bimodal orientations at ~N-E and ~S-W from 2008-2011. These orientations are believed to be due to pressurization accompanying the shallow intrusion and subsequent eruption of magma as domes during 1981-1986 and 2004-2008, and the buildup of pore pressure beneath a shallow seismogenic volume during 1987-2004 and 2008-2011.
Chapter 4 presents a study using receiver functions, which show the relative response of the Earth beneath a seismometer. Receiver functions are produced by deconvolving the vertical component of a seismogram from the horizontal components. The structure of the ground beneath the seismometer can then be inferred from the arrivals of P-to-S converted phases. Receiver functions were computed for the Katmai Volcanic Group, Alaska, at two seismic stations (KABU and KAKN) between January 2005 and July 2011. Receiver functions from station KABU clearly showed the arrival of the direct P-wave and the arrival from the Moho; however, receiver functions from station KAKN did not show the arrival from the Moho. In addition, changes in the amplitude and polarity of arrivals on receiver functions suggested that the structure beneath both KABU and KAKN was complex. Station KABU is likely underlain by dipping layers and/or anisotropy, while station KAKN may lie over a basin structure, an attenuating body, or some other highly complex structure. However, it is impossible to say for certain what the structure is under either station as the azimuthal coverage is poor and thus the structure is unable to be modeled.
This dissertation also includes a section (Chapter 6) on the assessment of spreadsheet-based modules used in two Introductory Physical Geology courses at the University of South Florida (USF). When faculty at USF began using spreadsheet-based modules to help teach students math and geology concepts the students complained that they spent more time learning how to use Excel than they did learning the concepts presented in the modules. To determine whether the sharp learning curve for Excel was hindering learning we divided the students in two Introductory Physical Geology courses into two groups: one group was given a set of modules which instructed them to use Excel for all calculations; the other group was simply told to complete the calculations but was not instructed what method to use. The results of the study show that whether or not the students used Excel had very little to do with the level of learning they achieved. Despite complaints that Excel was hindering their learning, students in the study attained high gains for both the math and geology concepts presented in the modules whether they used Excel or not.
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SILVA, Tatielly Fernandes. "As Metamorfoses de Helena nas Tragédias de Eurípides (Século V a.C.)". Universidade Federal de Goiás, 2012. http://repositorio.bc.ufg.br/tede/handle/tde/2334.
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Previous issue date: 2012-04-27The present Dissertation aims to understand the many representations of the mythic character Helen, as they have been elaborated by the tragedian Euripides. Selected as sources for this research, three tragedies shall be analysed in our work: The Trojan Women (415 AD), Orestes (408 AD) , and Helen (412 AD). Whenever it may come necessary, we will use the other tragedies as supporting documents to the subject we are attending to endorse, for which we may appeal also to the works of Homer, Hesiod and the sophist Gorgias of Leontini, as well as the plays of other great tragedians from the Classical Athens, Aeschylus and Sophocles. By the utilization of the concept representation , which have been largely discussed by most historians in the last decades of 20th century, we will be intending to make an association between representation and other common concepts used by the New Social History, such as memory and mythology. This is due to the multiple understanding we can achieve over the character Helen as a mytheme as it is presented both in narrative and interpretations in the Greek mythological system as it was known in the Classical Athens. The image of Helen was reinterpreted by Euripides tragedy, mainly because Helen s Pan-Hellenic characteristics, which were determinant for the tragedian s work as a ideal condition guaranteed by its eminent poetic/narrative style. By reinventing his Helens, Euripides has increased through the tragic mimesis a particular representation which was intertwined with the mythic traditions and the poetical and philosophical view of his contemporaries.
Esta Dissertação tem como objetivo compreender as representações da personagem mítica Helena elaboradas pelo tragediógrafo Eurípides. Selecionamos como fontes principais para análise as tragédias, As Troianas (415), Orestes (408) e Helena (412) e como aportes necessários à elaboração de nosso argumento recorremos às demais tragédias do poeta, bem como a Homero, Hesíodo, ao filósofo sofista Górgias de Leontinos e aos outros grandes tragediógrafos, Ésquilo e Sófocles. Utilizamos o conceito de representação, que tem sido amplamente discutido pela historiografia desde as últimas décadas do século XX, buscando aplicá-lo associado aos conceitos de memória e mitologia, principalmente, pois, entendemos as variantes narrativas e interpretativas do mitema de Helena, conhecidas no período clássico de Atenas e reelaboradas por Eurípides, como condições necessárias e determinantes do conjunto mitológico pan-helênico por seu caráter eminentemente poético narrativo. Eurípides ao reescrever suas Helenas através da mimese trágica desenvolve uma representação particular, mas entrelaçada com a tradição mítica e com as reelaborações poéticas e filosóficas desenvolvidas por seus contemporâneos.
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Oliveira, CÃntia AraÃjo. "Drama Tecido em Palavras: Multiplicidades de Helena no Teatro de EurÃpides". Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=16537.
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FundaÃÃo de Amparo à Pesquisa do Estado do CearÃHelena, filha de Zeus, esposa de Menelau e mais bela entre as mortais, desperta atenÃÃo a partir da complexidade observada em suas representaÃÃes na Literatura Antiga: sÃmbolo de beleza e de transgressÃo, Helena à uma figura ambÃgua, ora apresentada como motivo maior da Guerra de Troia, ora revelada como vÃtima das vontades divinas. Helena, enquanto personagem, revela-se uma fonte de criaÃÃo poÃtica, permitindo muitas apresentaÃÃes de sua figura nada simples, conforme podemos observar nas muitas Helenas de EurÃpides, tragediÃgrafo grego do sÃculo V a.C., autor de peÃas como Troianas. Nessa obra, a bela mulher à rejeitada e reprovada pelas mulheres de Troia, por ter causado a guerra, a morte de vÃrios herÃis e a desgraÃa de inÃmeras pessoas. Tanto a beleza fÃsica quanto a beleza das palavras de Helena, quando ela se apresenta no drama, mostram a forÃa persuasiva da personagem que se configura uma ameaÃa ao bom julgamento da verdade e da justiÃa. Jà em Helena, outra tragÃdia de EurÃpides, a inventividade do autor e a estrutura do drama permitem que a forÃa dos argumentos apresentados pela personagem â amparados por uma versÃo do mito em que a filha de Zeus à completamente inocente, fiel e virtuosa â seja, mais uma vez, observada. Vernant (2011) e BrandÃo (1985) afirmam que a inventividade prÃpria de EurÃpides, acerca da criaÃÃo de personagens e de suas falas dentro das tragÃdias, à efeito da influÃncia sofista e retÃrica de seu tempo, e Baliff (2001) assegura a relaÃÃo existente entre seduÃÃo, feminino e retÃrica, enquanto Mastronarde (2010) e Sansone (2012) chamam atenÃÃo para o desdobramento peculiar e especÃfico do gÃnero dramÃtico, que permite Ãs personagens o desenvolvimento de habilidades linguÃsticas e a sofisticaÃÃo argumentativa que situaria o drama como gÃnero de grande inovaÃÃo na Literatura Grega. Nesta dissertaÃÃo, portanto, objetivamos analisar as apresentaÃÃes de Helena, situadas entre a inventividade do drama e a potencialidade dos discursos, de acordo com a multiplicidade que a personagem suscita e que parece ser o prÃprio desdobramento da criaÃÃo poÃtica e da multifacetada linguagem.
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Burford, Arianne. "Between Women: Alliances and Divisions in American Indian, Mexican American, and Anglo American Literatures of Protest to Colonialism". Diss., The University of Arizona, 2007. http://hdl.handle.net/10150/195349.
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Between Women: Alliances and Divisions in American Indian, Mexican American, and Anglo American Literatures of Protest to Colonialism investigates nineteenth- and twentieth-century women writers' negotiation of women's rights discourses. This project examines the split between nineteenth-century women's rights groups and the Equal Rights Association to assess how American Indian, Mexican American, Anglo women, and, more recently, Chicana writers provide theoretical insights for new directions in feminisms. This study is grounded historically in order to learn from the past and continue efforts toward "decolonizing feminisms," to borrow a phrase from Chandra Mohanty. To that end, current feminist theories about alliances and solidarity are linked to ways that writers intervene in feminisms to simultaneously imagine solidarity against white male colonialist violence and object to racism on the part of Anglo women. Like all the writers in this study, Sarah Winnemucca's Life Among the Piutes: Their Wrongs and Claims (1883) challenges Anglo women to not be complicit with Anglo male colonialist violence. Winnemucca's testimony illuminates the history of alliances between Anglo and Native women and current debates amongst various Native women activists regarding feminism. Between Women traces how Anglo American writer Helen Hunt Jackson's Ramona (1884) protests effects of U.S. colonialism on Luiseno people and her negotiation of feminisms compared with Winnemucca's writing and Maria Amparo Ruiz de Burton's The Squatter and the Don (1885) and Who Would Have Thought It? (1872), novels that protest the effects of U.S. colonialism on Mexican Americans, particularly women. It then compares Ruiz de Burton's writing to Helena Maria Viramontes's Under the Feet of Jesus (1995) and Cherrie Moraga's Heroes and Saints (1994), texts that acknowledge the difficulties of forming alliances between women in the context of exploitation, pesticide poisoning of Chicanas/os, and border policies. The epilogue points to Evelina Lucero's Night Sky, Morning Star (2000), demonstrating how an understanding of the history that Winnemucca engages elucidates American Indian literature in the twenty-first century. By looking deeply at how nineteenth-century conflicts effect us in the present, scholars and activists might better assess tactics for feminisms in the twenty-first century that enact an anti-colonialist feminist praxis.
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Löbig, Susanne. "Helene Liebmann, geb. Riese : Pianistin - Komponistin - Sängerin in der ersten Hälfte des 19. Jahrhunderts /". Mainz : Are-Ed, 2006. http://deposit.d-nb.de/cgi-bin/dokserv?id=2950236&prov=M&dok_var=1&dok_ext=htm.
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Reis, Daiane. "Helena Morley". reponame:Repositório Institucional da UFSC, 2013. https://repositorio.ufsc.br/handle/123456789/106993.
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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Literatura, Florianópolis, 2013.Made available in DSpace on 2013-12-05T22:55:51Z (GMT). No. of bitstreams: 1 320051.pdf: 619916 bytes, checksum: 93f376a09675110e2cb8c8b5f5fd386a (MD5) Previous issue date: 2013
O presente trabalho propõe uma leitura da personagem Helena Morley, da obra literária Minha Vida de Menina, e de suas características tão marcantes a uma personagem feminina do século XIX. O diário da garota, escrito durante os anos de 1893 a 1895, abre discussões sobre a escrita feminina numa época em que a mulher não tinha acesso à educação, porém muitas escreviam e apresentavam bastante senso crítico. Por se tratar de uma menina à frente de seu tempo, que ao contrário da maioria das mulheres, fala o que pensa, critica o que não considera correto, a obra despertou o interesse da cineasta Helena Solberg, que em 2004, produziu a adaptação Vida de Menina. Ao falar em adaptação, muitas são as discussões levantadas. Virginia Woolf critica a adaptação, pois a considera inferior à obra literária, já Robert Stam afirma que mesmo estando abaixo da Literatura, por se tratar de uma questão cronológica, a adaptação sempre trará benefícios ao livro, entre eles, irá complementá-lo, fazendo com que fique mais conhecido entre os espectadores/leitores. O motivo de a obra ser escrita por uma mulher e do filme produzido por cineastas (também mulheres), a questão do feminismo é abordada, na qual haverá o questionamento se houve intenção feminista em ambas as obras, ou se a questão da autoria foi motivo para tal classificação. No entanto, no decorrer da obra, percebe-se a fraqueza do homem diante de algumas mulheres; a mulher que tem opiniões e vontades; a ausência de um vilão e de um protagonista que luta para que tudo termine bem, diferenciando Vida de Menina do cinema tradicional.
Abstract : The present research proposes a reading of the character Helena Morley, the literary work of Minha Vida de Menina, and its salient features a female character of the nineteenth century. The girl's diary, written during the years 1893 to 1895, open discussions on women's writing in a time when women did not have access to education, but many wrote and introduced very critical sense. Because it is a girl ahead of its time, that unlike most women, speaks her mind, criticizes what she does not consider correct, the work attracted the interest of filmmaker Helena Solberg, who in 2004 produced the adaptation Vida de Menina. Speaking at adapting many discussions are raised. Virginia Woolf criticizes the adaptation because it considers inferior to literary work, as Robert Stam argues that even if below the literature, because it is a chronological issue, adapting always bring benefits to the book, among them, will complement it by making to make it better known to viewers / readers. The reason for the work to be written by a woman and the movie produced by filmmakers (also women), the issue of feminism is discussed, in which there was no intention to question whether feminist in both works, or if the question of authorship was reason for such classification. However, throughout the work, realizes the weakness of man before some women, the woman who has opinions and wants, the absence of a villain and a protagonist who struggles to finish everything well, differentiating Vida de Menina of the traditional cinema.
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Müller-Kelwing, Karin. "Helene Barthel". Böhlau Verlag, 2020. https://slub.qucosa.de/id/qucosa%3A75026.
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Coles, Liza Hermione. "Thinking with Helen : a reading of Euripides' 'Helen'". Thesis, University of Cambridge, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.299209.
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Fontes, Luísa Cristina dos Santos. "Helena Kolody, carbono". Florianópolis, 2012. http://repositorio.ufsc.br/xmlui/handle/123456789/99268.
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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-Graduação em LiteraturaMade available in DSpace on 2013-03-04T18:24:43Z (GMT). No. of bitstreams: 1 304949.pdf: 70866187 bytes, checksum: fc5798427cca2a4352078d46d2bf5f64 (MD5)
Helena Kolody, carbono & diamante - uma biografia ilustrada conta a vida da escritora Helena Kolody, a partir de sua inscrição na literatura, questionando sua identidade, o mundo que a cercava e o sentido de sua existência. Equivale a dizer: em sua lírica, reflexões e sentimentos se entretecem a partir de uma matéria pessoal e localizada. Da estação ferroviária à estação tubo; da Ucrânia ao centro de Curitiba; de Paisagem interior a Reika; do século XIX ao século XXI, a literatura de Helena Kolody gerencia sua presença na consolidação do binômio arte-vida. O retrato da autora acaba se constituindo também por meio de farto aparato iconográfico; pelos mais de quinhentos textos críticos elencados e por sua obra completa. Fragmentação deliberadamente assumida, a pessoa se revela em sua inteireza.
Helena Kolody, carbon & diamond - an illustrated biography tells the life of Helena Kolody, from her very insertion in literature, as it questions her identity, the world surrounding her, and the meaning of her existence. That is equivalent to saying that in her poetry there is the intermingling of reflections and feelings that derive from personal and localized material. From the railroad station to the tube-shaped bus stops; from Ukraine to downtown Curitiba; from Paisagem interior to Reika; from the nineteenth century to the twenty-first century, Helena Kolody's literature guarantees her presence in the consolidation of the art/life binomial. The portrait of the author ends up by also being made up of an abundant iconographic apparatus, of the over five hundred critical texts listed, and of her complete work. The person, although deliberately accepting her own fragmentation, reveals herself in her entireness.
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Charpentier, Amy Noblit George W. "Over the levee an autoethnography of education in Helena-West Helena, Arkansas /". Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2007. http://dc.lib.unc.edu/u?/etd,921.
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Thesis (M.A.)--University of North Carolina at Chapel Hill, 2007.Title from electronic title page (viewed Dec. 18, 2007). "... in partial fulfillment of the requirements for the degree of Masters of Arts in the School of Education (Culture, Curriculum and Change)." Discipline: Education; Department/School: Education.
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Schaser, Angelika Bäumer Gertrud Lange Helene. "Helene Lange und Gertrud Bäumer : eine politische Lebensgemeinschaft /". Köln [u.a.] : Böhlau, 2000. http://www.h-net.org/review/hrev-a0d5n9-aa.
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Pedro, Renata Lopes. "A imortalidade de Helena". Florianópolis, SC, 2008. http://repositorio.ufsc.br/xmlui/handle/123456789/91676.
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Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão. Programa de Pós-Graduação em LiteraturaMade available in DSpace on 2012-10-24T01:25:25Z (GMT). No. of bitstreams: 1 258971.pdf: 3223584 bytes, checksum: 94df9ff3ae7f8ea9d96003943acec125 (MD5)
Este estudo tratará da análise da obra poética, no caso aqui presente, os sonetos, do poeta Luiz Delfino dos Santos que, apesar de nascido em Desterro, atual Florianópolis, viveu a maior parte de sua vida no Rio de Janeiro, onde se formou médico, foi senador da República e escreveu seus poemas. Após a leitura de sua poética, nos propomos a analisar os seguintes temas presentes em sua obra: o erotismo e a sensualidade em uma série de poemas em que Delfino celebra o corpo da mulher até em suas partes mais íntimas; os momentos em que o eu-poético sente-se encantado por certas partes do corpo, como os pés, as mãos e os cabelos da amada, como também, poemas em que a mulher mostra-se superior a ele; pensamos também o misticismo relacionado ao sagrado e profano, sobretudo nos poemas em que em Adão e Eva aparecem como figuras poéticas; a crucificação e morte de Jesus Cristo e a (des)crença na existência de Deus; analisamos também referências à mitologia, através da alusão a deuses e deusas da mitologia grega/romana, que são comparadas a Helena/Eugênia. Temas que nos levaram a perceber que Luiz Delfino foi poeta intertextual que enveredou por todos esses caminhos. This study it will deal with the analysis of the poetical workmanship, in the here present case, the sonets, of the poet Luiz Delfino dos Santos who, although been born in Desterro, current Florianópolis, most of its life in Rio de Janeiro lived, where if it formed doctor, was senator of the Republic and wrote its poems. After the reading of its poetical one, in we consider them to analyze the following subjects gifts in its workmanship: the erotism and the sensuality in a poem series where Delfino even celebrates the body of the woman in its closer parts; the moments where the I-poetical one is felt magic for certain parts of the body, as the feet, the hands and the hair of the loved one, as well as, poems where the woman reveals greater it; we also think the sacred and the profane , over all in poems where in Adão and Eva they appear as poetical figures; the crucification and death of Jesus Christ and the belief in the existence of God; we also analyze references to mythology, through the allusion gods and goddesses of the mythology Greek/Roman, that are compared the Helena/Eugênia. Subjects that in had taken them to perceive that Luiz Delfino was intertextual poet who to get involved for all these ways.
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Granzotto, Adriana. "Helena chez la Drosophila". Thesis, Lyon 1, 2011. http://www.theses.fr/2011LYO10041.
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Les éléments transposables (ET) sont des séquences d’ADN capables de catalyser son propre mouvement et d’entrer dans de nouvelles régions du génome. Dans la présente étude, nous avons étudié Helena, un élément LINE qui est à différents stades de son cycle évolutif et donc, il est un bon modèle pour l’étude de la dynamique évolutive des TE. À travers une analyse de bio-informatique dans les douze génomes séquencés de la drosophile nous avons étudié l’évolution de Helena, et nous proposons un scénario possible pour l’évolution de cet élément. Helena est à différents stades de son cycle de vie, allant d’un état complet (D. simulans et D. mojavensis) à très dégradé (D. yakuba, D.erecta, D. ananassae et D. virilis) ou absent (D. pseudoobscura, D. persimilis, D. grimshawi et d. willistoni). L’analyse phylogénétique a montré que Helena était présent chez l’ancêtre commun du genre Drosophila et a été transmis verticalement dans des lignées dérivées. De plus, nous avons détectées des copies intactes uniquement chez D. mojavensis et nous avons étudié plus en détail sa région 5’ (extrémité). Nous avons utilisé un gène rapporteur et confirmé la présence du promoteur interne pour Pol II qui est associé à des modifications épigénétiques de l’histone : hétérochromatine permissive (H3K4me2) et répressive (H3K27me3). Ces « marques bivalents » indiquent que Helena peuvent être exprimés en réponse à un stimulus spécifique. Une étude de l’élément BS, un TE étroitement liée à Helena, a montré que la dynamique évolutive des deux ETs sont très similaires. Les résultats montrent que CET élément, comme Helena, se trouve à différents stades de son cycle évolutifThe transposable elements (TEs) are DNA sequences capable of catalyze its own movement and to enter into new regions of the genome. In the present study we studied Helena, a LINE element that is at different stages of its evolutionary cycle and therefore, it is a good model for studies of TEs evolutionary dynamics. Through bioinformatics analysis of 12 Drosophila species which have their genomes sequenced, we found Helena in different stages of its evolutionary cycle, that varies of at least one full active copy (D. mojavensis) an putatively complete copy, but inactive (D. simulans) to highly degenerate (D. yakuba, D. erecta, D. ananassae and D. virilis) or absent (D. pseudoobscura, D. persimilis, D. willistoni and D. grimshawi) sequences. Phylogenetic analysis showed that Helena was present in the common ancestor of the Drosophila genus and has been vertically transmitted in derived lineages, but lost on some of them. Since a complete highly active copy was observed only in D. mojavensis, we studied in more detail its 5' end region. We used a reporter gene and verified the presence of internal promoter for Pol II that is associated with epigenetic histone modifications for permissive (H3K4me2) and repressive heterochromatin (H3K27me3). These “bivalent marks” indicate that Helena can be expressed in response to specific stimulus. A study of BS element, a TE closely related to Helena, showed that the evolutionary dynamics of both TEs are very similar. Bioinformatics analysis of the 12 Drosophila genomes revealed that BS is also widely variable in the species analyzed regarding to distribution, abundance, degree of degradation and also about their evolutionary cycle
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Costa, Addson Ara?jo. "Helena de Machado de Assis; Imagens liter?rias e a ret?rica da morte da na??o inconclusa". Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16165.
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Previous issue date: 2009-11-30Helena is the romance of perishable and discontinuous title character denominator of a dialectic that does not consume and build the narrative by sequential fragmentation combined with episodic frame. The novel is a lightning stroke to the romantic literary project. Therefore, this study aims to find "objective" elements of the novel that would constitute a conception of literary nation proposed by Machado de Assis, as in classical writing, where women are engaged as a metaphor for the nation by a non-cultural heroism, as the example of the Greek myth of Helena, where the feminine represents a mythical image of the nation. The paper's theoretical conception of the history of Walter Benjamin, that is, that is constructed as an allegorical appeal, the conclusions about the disciplinary society of nineteenth century of Michel Foucault, the construction of the nation as a subtle game to remember and forget of Wander Miranda and the rhetoric of death and loss reflected in the speeches of the cultural heritage of Jos? Reginaldo Santos Gon?alves, which allow you to analyze the work permeated by subjectivity and existential conflicts by Machado, who has it arranged in dialectic with the avant-garde literary romanticism and realism. In this relationship with the Greek myth of Helen, explained that characters with the nickname of Helena in Machado's work are not uncommon. As in classical Helena, Machado s Helena uses three rhetorical are the cause of the seizure of the nation. In this game of remembering and forgetting, in the daily plebiscite, Machado draw ideal images that forged our mythical past and commitment to the future. The suffering love of Helena is suffering from failure of the nation which would have led the author to the use of allegorical language, seeking a balance in the chaos generated by the opposition between cruelty and pity widespread view in an area where only left the character's confession guilt for the death. It is a simulacrum of unfinished nation, the space for the game of remembering and forgetting, while the rhetoric of negotiation of our Brazilianness
Helena ? o romance do perec?vel e do descont?nuo, t?tulo denominador de uma personagem dial?tica que n?o se consuma e constr?i a narrativa pela fragmenta??o seq?encial aliada a arma??o epis?dica. O romance ? uma apoplexia fulminante ao projeto liter?rio rom?ntico. Por isso, o presente estudo busca pesquisar objetivamente elementos do romance que fariam parte de uma concep??o de na??o liter?ria proposta por Machado de Assis, assim como na escritura cl?ssica, onde a mulher ? envolvida como met?fora da na??o por um n?o hero?smo cultural, a exemplo do mito da Helena grega, onde o feminino m?tico representa uma imagem de na??o. O trabalho tem como aportes te?ricos a concep??o da hist?ria de Walter Benjamin, isto ?, que esta se constr?i como um recurso aleg?rico, as conclus?es acerca da sociedade disciplinar oitocentista de Michel Foucault, a constru??o da na??o como um jogo sutil de lembrar e esquecer de Wander Miranda e a ret?rica da morte e da perda refletido nos discursos do patrim?nio cultural de Jos? Reginaldo Santos Gon?alves, as quais permitem analisar a obra permeada de subjetivismo e conflitos existencialistas por Machado t?-la arranjado em dial?tica com as vanguardas liter?rias do romantismo e do realismo. Al?m desse relacionamento com o mito da Helena grega, exp?e-se que personagens com a alcunha de Helena na obra machadiana n?o s?o incomuns. Assim como na Helena cl?ssica, a Helena machadiana utiliza-se de tr?s ret?ricas s?o a causa da apoplexia da na??o. Neste jogo de lembrar e esquecer, no plebiscito di?rio, Machado elabora imagens ideais que forjariam o nosso passado m?tico e o empenho do futuro. O sofrimento amoroso de Helena ? o sofrimento da impossibilidade da na??o o que teria levado o autor ao uso da linguagem aleg?rica, procurando algum equil?brio no caos gerado pela oposi??o entre a crueldade vista e a comisera??o disseminada em um espa?o onde somente restava ? personagem a confiss?o de sua culpa pela morte. Faz-se o simulacro da na??o inconclusa, o espa?o para o jogo do lembrar e esquecer, enquanto ret?rica da negocia??o de nossa brasilidade.
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Löbig, Susanne. "Helene Liebmann, geb. Riese Pianistin - Komponistin - Sängerin in der ersten Hälfte des 19. Jahrhunderts". Mainz Are-Ed, 2002. http://deposit.d-nb.de/cgi-bin/dokserv?id=2950236&prov=M&dok_var=1&dok_ext=htm.
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Kartus, Sidney. "Helen Duett Ellison Hunt". Arizona State Historian (Phoenix, AZ), 2017. http://hdl.handle.net/10150/623654.
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Mora, Figuera Anna Cris. "Helena Valentí, escriptora i traductora". Doctoral thesis, Universitat Autònoma de Barcelona, 2016. http://hdl.handle.net/10803/369578.
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Helena Valentí, escriptora i traductora estudia l’obra narrativa i de traducció d’Helena Valentí. L’objectiu general de la tesi és recuperar la figura d’Helena Valentí. Per això, en la primera part se’n reconstrueix la biografia, la qual comprèn els orígens familiars, la infantesa, l’adolescència, la joventut a la universitat, els estius al Coll de Poses, a Sant Feliu de Guíxols i a Cadaqués, l’exili voluntari a Anglaterra, la tornada a Catalunya l’hivern de 1974 i la darrera etapa a Barcelona, fins a la mort el 1990. Els objectius específics han estat situar la seva obra en la genealogia de dones escriptores i traductores catalanes del segle XX, estudiar-ne l’obra narrativa i traductora, analitzar la influència de Katherine Mansfield en l’obra teatral inèdita K.M.: La felicitat i altres històries i, finalment, recopilar, ordenar i classificar el fons documental d’Helena Valentí, cedit per la família.
La segona part de la tesi se centra en l’anàlisi de l’obra narrativa, en la qual hem tractat les influències i els agermanament literaris, la temàtica, l’estil, la simbologia i el concepte d’escriptura de Valentí. La tercera part examina les nombroses traduccions al castellà i al català de l’escriptora, a fi de dilucidar les fronteres entre la traducció professional i la traducció vocacional. Un punt important d’aquesta part és l’influx de Katherine Mansfield en l’obra de Valentí i l’estudi de la peça teatral inèdita K.M.: La felicitat i altres històries.
A l’últim, en els annexos, hi hem inclòs un primer inventari dels fons documental d’Helena Valentí, una mostra fotogràfica del seu fons bibliogràfic, una gran part dels correus electrònics intercanviats per l’autora amb amistats i coneixences de Valentí i l’obra de teatre K.M.: La felicitat i altres històries.
Atesa la manca d’estudis acadèmics sobre Helena Valentí, aquesta tesi pretén omplir un buit bibliogràfic manifest.Helena Valentí, writer and translator studies Helena Valentí’s writing and translating work. The main aim of this thesis is to rekindle the memory of Helena Valentí. Therefore, the first part comprises her biography, which examines her family origins, her childhood, her adolescence, her youth at university, her summers in Coll de Poses, Sant Feliu de Guíxols and Cadaqués, her voluntary exile in England, her return to Catalonia in the winter of 1974 and the final stage of her life in Barcelona, until her death in 1990. More specifically, we have sought to place her work in the genealogy of the Catalan women writing and translating in the 20th century; we have studied and analysed her writing and translating work; we have also examined Katherine Mansfield’s influence on Valenti's unpublished play K.M.: La felicitat i altres històries; finally, we have compiled, ordered and classified her document archive, which was made available by her family. The second part of our thesis focuses on the analysis of her narrative work, which includes her fictional influences and bonds with other writers, her subjects, her symbols and her perspective on writing itself. The third part deals with her numerous translations into Spanish and Catalan in order to define the boundaries between professional and vocational translation. An important aspect of this last part is Katherine Mansfield’s influence on her work and the study of her unpublished play K.M.: La felicitat i altres històries. Finally we have attached an inventory of her document archive in the annexes, some sample photos of her bibliographic archive, most of the emails that we have sent to Valentí’s friends and acquaintances and the play mentioned above. Due to the lack of academic work about Helena Valentí, this thesis seeks to fill an evident bibliographic vacuum.
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Honsová, Petra. "Jiří Hálek a Helena Třebická:". Doctoral thesis, Akademie múzických umění v Praze.Divadelní fakulta. Knihovna, 2014. http://www.nusl.cz/ntk/nusl-178061.
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The doctoral dissertation "Jiří Hálek and Jiřina Třebická: Acting at the Činoherní Klub in the 1960s" is dedicated to two outstanding figures of Czech theatre. Both born in 1930, Hálek and Třebická were members of the original Činoherní Klub (Drama Club) company fiounded in prague in 1965 who through their craft, especially in ground - breaking works by Ladislav Smoček, Alena Vostrá and PAvel landovský, helped determine the shape of modern Czech drama, which in the late 60s and early 70s came to be admired and acclaimed throughout Europe.
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Theodorou, Heleni [Verfasser]. "Investitionsschutzverträge vor Schiedsgerichten. / Heleni Theodorou". Berlin : Duncker & Humblot, 2015. http://d-nb.info/1238297331/34.
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Henkens, Andrea. "Flanerie in der Grossstadt : auf der Suche nach dem Anderen im Alltäglichen ; surreale Blickweisen in den Fotografien von Helen Levitt /". Marburg : Tectum-Verl, 2005. http://deposit.ddb.de/cgi-bin/dokserv?id=2683933&prov=M&dokv̲ar=1&doke̲xt=htm.
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