Index Catalog // Hyrax

The development of pre-service teachers' Technology Specific Pedagogy

O Criador:: Harrington, Rachel A.
Abstract:: The purpose of this study was to document the development of pre-service teachers' Technology Specific Pedagogy as they learned to teach mathematics with technology during their initial licensure program. The study investigated the pre-service teachers' learning using both a social and a psychological perspective of teacher learning. Two research questions...
Resource Type:: Dissertation

The evolution of agricultural resource use strategies in the Willamette Valley

O Criador:: Blok, Jack H.
Abstract:: Agriculture in the Willamette Valley, Oregon, has undergone continual change since the annual migrations of American pioneer farmers began to arrive in the early 1840's. The comparisons of data from each of the agricultural censuses of Oregon counties taken since 1850 confirms that change has been continual. The data revealed...
Resource Type:: Dissertation

Distribution, structure, and function of marine ecological communities in the northern California Current upwelling ecosystem

O Criador:: Reese, Douglas Charles
Abstract:: Within systems characterized by substantial spatial and temporal variability, abundances of organisms tend to be higher in localized areas. Within the northern California Current system, the identification of such marine, biological hotspots would be of great importance to resource managers, conservationists, and research planners, and is consequently a growing area...
Resource Type:: Dissertation

Evaluation of the effect of a literature-based unit designed to enhance the attitudes of primary grade children toward the elderly

O Criador:: Lawler, Brynn Heintz
Abstract:: This research investigated the effect of a literature-based unit on subjects' in primary grades attitudes toward the elderly and aging. The experiment followed a pretest/posttest design; covariates derived from three separate survey portions were compared with respective postmeasure scores. Other research on young children's attitudes toward aging suggests that ageist...
Resource Type:: Dissertation

Habitat use and productivity of Rio Grande wild turkey hens in southwestern Oregon

O Criador:: Keegan, Thomas W.
Abstract:: Wild turkey (Meleagris gallopavo) ecology has been examined within its native range, but knowledge of extralimital populations of Rio Grande wild turkeys (M. g. intermedia) is lacking. I investigated habitat use, characteristics of activity sites, home ranges and movements, productivity, and survival of Rio Grande turkey hens from 1989 through...
Resource Type:: Dissertation

Understanding health care utilization : a theoretically-based analysis of the Ecuadorian health care system

O Criador:: López-Cevallos, Daniel F.
Abstract:: One in four Ecuadorians do not have access to health services; while more than two-thirds have no health insurance and insufficient resources to pay for the health care services they might require. The following three studies examined utilization of health care services using Andersen’s Health Care Utilization Behavior Theory. Secondary...
Resource Type:: Dissertation

Biophysical factors driving the distribution and abundance of redband/steelhead trout (Oncorhynchus mykiss gairdneri) in the South Fork John Day River Basin, Oregon, USA

O Criador:: Madriñán, Luis Francisco
Abstract:: The overall goal of this study was to identify multiple scales of habitat use and habitat electivity by redband/steelhead trout and define the limiting factors affecting the distribution patterns of this species during summer flows. The main objective in chapter 2 was to identify the most important habitat associations that...
Resource Type:: Dissertation

Changes in developing strawberry fruit : I. Cell division and enlargement ; and II. Biosynthesis of anthocyanins and other phenolics and activity of associated enzymes

O Criador:: Cheng, Guiwen
Abstract:: Size and color are important visual quantity attributes of the fruit of strawberry (Fmgaria x ananassa Duch.). Strawberry cultivars produce fruit of a characteristic size and color, the later being the result of accumulation of particular anthocyanins. This research sought to determine the basis for genotypic differences in fruit size...
Resource Type:: Dissertation

Volcanology and petrology of the Rattlesnake Ash-Flow Tuff, eastern Oregon

O Criador:: Streck, Martin J.
Abstract:: The Rattlesnake Ash-Flow Tuff erupted 7.05±0.01 Ma from the western Harney Basin, southeastern Oregon. The location of the vent area is inferred based on vent-ward increases in size of pumices, in degree of welding, and in degree of post-emplacement crystallization. Today's outcrops cover 9000 km2 and estimated original outcrop coverage...
Resource Type:: Dissertation

Development, fire history and current and past growth, of old-growth and young-growth forest stands in the Cascade, Siskiyou and mid-coast mountains of southwestern Oregon

O Criador:: Sensenig, Thomas S.
Abstract:: I evaluated fire occurrence, growth and recruitment and determined the fire history of 21 old and 20 young 8ha stands in Cascade, Siskiyou and mid-Coast mixed conifer and evergreen forests in southwestern Oregon. The rates and patterns of growth were measured and analyzed on 1,079 old-growth and 2,111 young stand...
Resource Type:: Dissertation

Hyrax

The development of pre-service teachers' Technology Specific Pedagogy

The evolution of agricultural resource use strategies in the Willamette Valley

Distribution, structure, and function of marine ecological communities in the northern California Current upwelling ecosystem

Evaluation of the effect of a literature-based unit designed to enhance the attitudes of primary grade children toward the elderly

Habitat use and productivity of Rio Grande wild turkey hens in southwestern Oregon

Understanding health care utilization : a theoretically-based analysis of the Ecuadorian health care system

Biophysical factors driving the distribution and abundance of redband/steelhead trout (Oncorhynchus mykiss gairdneri) in the South Fork John Day River Basin, Oregon, USA

Changes in developing strawberry fruit : I. Cell division and enlargement ; and II. Biosynthesis of anthocyanins and other phenolics and activity of associated enzymes

Volcanology and petrology of the Rattlesnake Ash-Flow Tuff, eastern Oregon

Development, fire history and current and past growth, of old-growth and young-growth forest stands in the Cascade, Siskiyou and mid-coast mountains of southwestern Oregon

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