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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Självtranscendens : upplevelse, utveckling och psykologiska förändringar / Selftranscendence : experience, development and psychological changes

Friman, Henrik January 2014 (has links)
Psykologiska    processer    där    identifikationen    med    jaget    och medvetandets innehåll upphör kan tänkas utgöra en hälsosam motvikt i  dagens  samhällskultur  där  centrering  kring  jaget,  stress,  depression och meningsförlust, ofta förekommer. Självtranscendens har beskrivits som en expansion av medvetandet och en rörelse bortom gränserna för ens självmedvetenhet och självuppfattning, antingen tillfälligtvis eller som  en  relativt  stabil  perspektivförändring  som  utvecklats  under livsloppet.  Sex  personer  mellan  54  och  100  år  med  erfarenhet  av självtranscendenta   perspektiv   intervjuades   i   studien   i   syfte   att induktivt  generera  mer  kunskap  om  hur  självtranscendens  kunde upplevas, utvecklas och förändra en människas perspektiv. Genom en tematisk    analys    framkom    att    en    regelbunden    aktivering    av självtranscendenta     medvetandetillstånd     särskilt     inverkade     på utvecklingen   och   kopplades   till   principer   om   neuroplasticitet. Självtranscendensutvecklingen     medförde     även     förändringar     i respondenternas perception av inre och yttre fenomen exempelvis vad gäller   känslighet,   jagupplevelse   och   möjlighet   till   distans   och objektivitet, vilket även bidrog till psykologisk hälsa.
22

DETRITAL RECORD OF PALEOZOIC AND MESOZOIC TECTONICS OF THE NORTHWESTERN CORDILLERAN MARGIN: A CENTRAL ALASKAN PERSPECTIVE

Lukas Geiger-Rigby McCreary (18824572) 14 June 2024 (has links)
<p dir="ltr">The Intermontane terranes represent one of the largest composite accreted terranes that built the northern Cordillera. To better understand the interactions between the continental margin of Laurentia and the Intermontane terranes, this study analyzes twelve detrital zircon samples (n=3232) from a Neoproterozoic (?) to Cretaceous metasedimentary stratigraphic section exposed in central Alaska. Distinct detrital zircon populations have been identified and are interpreted to represent four stages in the geologic development of this part of western North America. Stage 1 extends from the Neoproterozoic (?) to the Early Paleozoic, and is characterized by Proterozoic and Archean detrital zircon populations that correlate with Laurentian sources of sediment. We interpret Stage 1 to represent deposition along the northwestern continental margin of Laurentia. Stage 2 extends from the Silurian (?) to the Devonian and is characterized by a dominant Devonian and Silurian detrital zircon population. We interpret Stage 2 to have been deposited in a backarc basin coeval with active volcanism as the Yukon-Tanana terrane was rifted away from the Laurentian continental margin as the Slide Mountain Ocean opened. Stage 3 extends from the Mississippian to the Jurassic and records a shift back to sediment sources with abundant Proterozoic and Archean zircon. We interpret this stage to represent deposition of Laurentian detritus along the eastern margin of the Slide Mountain Ocean basin. Stage 4 is represented by the Lower Cretaceous strata of the Manley basin that contain one major Late Triassic to Early Jurassic detrital zircon population. We interpret this population to be sourced from the syn-collisional and post-collisional Late Triassic to Early Jurassic plutons and related sedimentary basins of the Intermontane terranes that were exhumed and eroded during the closure of the Slide Mountain Ocean and the subsequent collision with the Laurentian continental margin. We interpret the Manley basin as a syn- to post-collisional extensional basin associated with regional detachment faults that formed because of crustal thickening in the collisional zone. From a regional perspective, an extensive clastic wedge prograded northward away from the zone of crustal thickening and can be identified in a series of Mesozoic sedimentary basins that are discontinuously exposed over 1500 km in southern Alaska. Results of our study better delineate the tectonic processes that set the framework for the construction of the Late Mesozoic and Cenozoic Cordilleran orogen.</p>

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