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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

Animal damage, vegetative competition and growth of western hemlock seedlings in the Coast Range of Oregon /

Hyatt, Joan Marie. January 1992 (has links)
Thesis (M.S.)--Oregon State University, 1993. / Typescript (photography). Includes bibliographical references (leaves 71-75). Also available on the World Wide Web.
22

Effects of livestock grazing on foraging ecology of western wood-pewees in the southern Sierra Nevada Mountains /

Fogg, Alissa M. January 1900 (has links)
Thesis (M.S.)--Humboldt State University, 2009. / Includes bibliographical references (leaves 60-66). Also available via Humboldt Digital Scholar.
23

Ecophysiological assessment of western hemlock and western red cedar greenhouse stocktypes

Major, John E. January 1990 (has links)
Western hemlock (Tsuga heterophylla (Raf.) Sarg.) and western red cedar (Thuja plicata Donn) seedlings from four dormancy induction treatment(s) (DIT) (i.e. long-day dry, long-day wet, short-day dry, and short-day wet) were planted on a high available soil moisture field site in British Columbia and monitored for physiological response and morphological development over the first growing season. Stomatal conductance (gwv) and net photosynthesis (Pn) were recorded over an environmental matrix of photosynthetically active radiation (PAR) (0 - 2.2 mmol m⁻² s⁻¹ ) and vapour pressure deficit (VPD) (0 - 2.5 or 4.0 kPa) on both first year grown and fully developed second year foliage. To compare stocktypes, physiological data were collected and analyzed in the following ways: (1) replicated data at stable environmental conditions once a month, (2) physiological response to one increasing environmental variable using boundary line analysis, and (3) physiological response surface to two simultaneously changing environmental variables. For western hemlock first year needles, short-day DIT had a higher gwv response to both increasing VPD and PAR. Both short-day and moisture stressed DIT improved Pn response to PAR, and the combination had the highest response. Short-day DIT seedlings initially were smaller, shorter, had a better seedling water balance ratio and lower shoot to root ratio. Short-day second year needles showed a slightly higher gwv response to both increasing VPD and PAR as compared to long-day seedlings; however, they showed no treatment differences for Pn versus PAR. All stocktypes had similar final morphological parameter values. For western red cedar first year foliage, moisture stressed DIT seedlings had greater Pn response to increasing PAR and VPD. Also, moisture stressed seedlings gwv response to increasing VPD and PAR was higher when compared to its' non moisture stressed daylength counterpart. The long-day wet seedlings initially had a larger root and shoot system as compared to the other stocktypes. Second year foliage exhibited no treatment differences for gwv and Pn response to PAR ' and VPD. All stocktypes had similar final morphological parameter values. Attempts to test stocktypes at stable environmental conditions proved, at times, difficult. Potentially large measurement variation due to atmospheric environmental changes, and not stocktype effect, could result. Boundary line analysis, when used correctly and with sufficient data, offers a good stocktype assessment method which enables the isolation of a physiological response to one environmental variable. Three dimensional surface response technique was required to provide a clear conceptual representation of two primary environmental variables' influence on seedling physiological response. / Forestry, Faculty of / Graduate
24

Dendroarchaeological and contextual investigations of remote log structures in Jasper, Banff, and Kootenay national parks, Canada

Brelsford, Karen Jacqueline. 10 April 2008 (has links)
The aim of this thesis is to undertake a comprehensive dendroarchaeological-contextual investigation of 35 sites (44 log structures) in Jasper, Banff, and Kootenay National Parks. Through tree-ring analysis and investigations of relevant documents (i.e., archives and interviews), three main objectives are met: 1) an architectural inventory and tree-ring analysis of sampled structures in the three parks; 2) an exploration of remote construction activity in the three parks, in terms of functional, temporal, and spatial distributions, and tree species selection; and 3) a detailed dendroarchaeological-contextual investigation of three structure case studies. The results provide new insights into remote construction activity from the late-nineteenth to early-twentieth century in the three parks. It assists Parks Canada in their attempt to interpret the cultural heritage resources of this area and contributes to the international need to document and explore vernacular architecture.
25

<i>Dances with Wolves</i> in space : aliens and alienation in James Cameron's <i>Avatar</i>

Sutherland, Aaron 05 October 2010 (has links)
This paper examines critical responses to James Camerons most recent film, <i>Avatar</i>, to suggest that the ways in which critics have ignored its content because of Camerons innovative use of 3-D technology and effects or praised its content for offering a multicultural paradise are misguided at best and misleading at worst. Instead, what follows is an investigation into <i>Avatar</i>s content, specifically its plot, hero and, ultimately, its indivisible relationships to the Western genre and what I call the New Western genreKevin Costners <i>Dances with Wolves</i> (1990) will be representative of the larger genre which has continued to emerge in more recent films like Edward Zwicks <i>The Last Samurai</i> (2003). These relationships between, and crossovers within, genres prevent cross-cultural relationships based upon democratic forms of equality, what Costner is moving toward and what Cameron makes a claim for, from coming to fruition. As biological (colonial) and social/historical (imperial) notions of racial superiority and inferiority move across and arise within genres, the brief moments of cross-cultural cooperation and mutual respect within these films are subverted. In fact, Camerons film very clearly demonstrates how politics can be mobilized, despite a filmmakers unawareness, through big-budget blockbusters to advocate concrete and damaging political projectsin this case, Americas imperial projects around the globe. This paper attempts to do two main things: show how Cameron fails to notice what is a very clear advocacy for American imperialism in his film and display the ways in which a lasting egalitarian model of cross-cultural social organization is never established as a result of this failure.
26

The electrolytic recovery of copper from rod mill pickling solution at the Hawthorne works of the Western Electric Company, Incorporated

Scott, James Walter. January 1925 (has links) (PDF)
Thesis (Professional Degree)--University of Missouri, School of Mines and Metallurgy, 1925. / The entire thesis text is included in file. Typescript. Illustrated by author. Title from title screen of thesis/dissertation PDF file (viewed November 30, 2009) Includes index (p. 66-72).
27

Regional alienation : understanding political culture, regionalism and discontent in western Canada

Portengen, Michael Bernard 05 1900 (has links)
While western regional alienation has been the subject of much scholarly and public debate in Canada, we still know relatively little about the factors driving the phenomenon. Relying upon survey data collected in the 1997 Canadian Election Study (CES), this study attempts to substantively quantify western regional alienation and identify its correlates. Using the existing literature as a starting point, the study examines how western regionalism and political culture are typically conceptualized and identifies several factors commonly said to propel regional unrest and western 'distinctiveness.' Regression analysis is used to systematically test the accuracy of existing theories concerning western regional alienation. The study contends that while the four western provinces do not hold a monopoly on feelings of regional alienation, levels of unrest are indeed higher in the West than in other parts of the country. Regional alienation is also distinguished from more general understandings of political apathy or cynicism. Finally, with respect to the factors said to propel regional unrest, antipathy towards Quebec and Outgroups are shown to be the most important predictors or regional alienation - while attitudes concerning the economy, populism, social programs, law and order and continentalism have a weaker effect. However, even after controlling for these factors, significant regional differences remain. Thus, other factors - as-of-yet unaccounted for - must also play a role.
28

Peasant cocoa production in Western Nigeria : an economic analysis.

Olayemi, Joseph Kayade January 1971 (has links)
No description available.
29

Nest site characteristics of the Western Pond Turtle, Clemmys marmorata, at Fern Ridge Reservoir, in West Central Oregon /

Holte, Deborah Lyn. January 1998 (has links)
Thesis (M.S.)--Oregon State University, 1998. / Typescript (photocopy). Includes bibliographical references (leaves 102-106). Also available online.
30

A comparison of western pond turtle (Actinemys marmorata) movements in perennial and intermittent portions of a Northwestern California river system /

Bondi, Cheryl A. January 1900 (has links)
Thesis (M.A.)--Humboldt State University, 2009. / Includes bibliographical references (leaves 65-69). Also available via Humboldt Digital Scholar.

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