Index Catalog // ScholarsArchive@OSU

Phylogenetic Identification of Pathogenic and Endophytic Fungal Populations in West Coast Douglas-fir (Pseudotsuga menziesii) Foliage

Creator:: Daniels, Hazel A.
Abstract:: Douglas-fir provides social, economic, and ecological benefits in the Pacific Northwest (PNW). In addition to timber, forests support abundant plant and animal biodiversity and provide socioeconomic viability for many rural communities. Products derived from Douglas-fir account for approximately 17% of the U.S. lumber output with an estimated value of $1.9...
Resource Type:: Masters Thesis
Full Text:: inconsistent with predicted effects of P. gaeumannii, and targeted chemical control has had mixed results

The experiences of middle-level Chinese female adult immigrants working at west coast community and technical colleges

Creator:: Zhou, Lin
Abstract:: Community and technical colleges in the United States are experiencing an expansion of racial and ethnic diversity in students, faculty, and administrators. From 1996 to 2006, the number of Asian female college students increased 55.3%, from 13,184 to 20,477. The number of Asian male students increased 48.9%, from 9,731 to...
Resource Type:: Dissertation
Full Text:: boundaries between phenomenon and context are not clearly evident” (Yin, 2009, p.18). This research method

Effects of release from suppression on hydraulic architecture, photosynthetic capacity and functional wood characteristics in Douglas-fir and western hemlock

Creator:: Renninger, Heidi
Abstract:: Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco), a shade intolerant species, and western hemlock (Tsuga heterophylla (Raf.) Sarg.), a shade tolerant species, were compared to learn more about the temporal pattern of release from suppression in both species, whether hydraulic architecture or photosynthetic capacity constrain release and how wood functional properties change...
Resource Type:: Masters Thesis
Full Text:: , Sonya Dunham, Steve Voelker and Jeff Warren for advice on this project and for making my experience at

Toxicity of Fungal Pigments from Chlorociboria spp. and Scytalidium spp.

Creator:: Almurshidi, Badria H.
Abstract:: Commercial methodologies for producing fungal pigments are of worldwide interest due to the desire to move away from synthetic dyes. Chlorociboria species and Scytalidium species have been reported to produce sufficient yields of pigments for commercial production and have attracted special attention because of their use in spalted wood applications....
Resource Type:: Masters Thesis
Full Text:: appreciate the committee members, Dr. Jeff Morrell for his guidance in my academic and life experiences and

The Effect of Downed-trees on Harvesting Productivity and Costs in Beetle-killed Stands

Creator:: Kim, Yaejun
Abstract:: The mountain pine beetle has impacted over 5 million hectares of pine forests in the Rocky Mountains region in the United States. Although some beetle-killed stands are available for salvage harvesting, there are many uncertainties in harvesting beetle-killed stands including safety, costs, recoverable products and their values. These uncertainties impose...
Resource Type:: Masters Thesis
Full Text:: Anderson, Dr. Loren Kellogg, and Dr. Jeff Morrell, for their accessibility and guidance throughout this

Evaluating the rates of nitrate removal for a nitrate containing, low organic carbon wastewater interacting with carbon-containing solid substrates

Creator:: Hart, Jeffrey L.
Abstract:: The primary objective of this study was to evaluate the rates of nitrate removal for a nitrate containing, low organic carbon wastewater interacting with four different carbon-containing solid substrates (alder woodchips, corn silage, manure and woodchip biochar). Batch systems were tested for nitrate removal, and systems with a combination of...
Resource Type:: Masters Thesis
Full Text:: , Dr. Jeff Morrell, Dr. Mohammad Azizian, and Tao Huang. Dr. Kelley and Semprini provided great

Characterization of Fungal Endophyte Populations in Ponderosa Pine (Pinus ponderosa) Needles in The B&B Fire Complex of The Eastern Cascade Mountain Range

Creator:: Scrivani, James V.
Abstract:: Forests are some of the most ecologically diverse and dense habitats on the planet. Research shows that the endophyte community, or the fungi, bacteria, and viruses within a forest ecosystem is highly diverse. Fungal endophytes are defined as fungi that live within the tissues of host plants. Relationships between fungal...
Resource Type:: Masters Thesis
Full Text:: estimated to be 75.9 (p < 0.001) times those for one-year-old needles and 2.91 (p < 0.001) times those of

Forests on the Move: Forest Inventories and Wood Anatomy from the Fragmented Forests of Guairá, Paraguarí, and Central, Paraguay

Creator:: Cervantes, Andrew G.
Abstract:: Forest composition in Paraguay has been in a state of change for the past half century due to land management practices, forest fragmentation, and deforestation for agriculture. How these factors affect dendrological diversity and wood anatomy in Paraguay is not well understood. This thesis documents Paraguayan forest composition on the...
Resource Type:: Masters Thesis
Full Text:: . ………………………………………69 4.2 Microscopic images of P. peruviana. ………………………………………………..…….74 4.3 Microscopic images of P

Economic optimization of forest biomass processing and transport

Creator:: Zamora Cristales, René Arturo
Abstract:: An economic analysis and optimization of forest biomass processing and transportation at the operational level is presented. Renewable sources of energy have captured the interest of public and private institutions to develop cost-effective supply chains to reduce dependence on fossil fuels. The production of energy from forest harvest residues constitutes...
Resource Type:: Dissertation
Full Text:: Boston, Dr. Glen Murphy and Dr. Jeff Morrell. I really appreciate the time you dedicated providing me

Identifying the relevance of "family forest" wood product origin and environmental certification for Oregon consumers, and specifiers and industrial customers

Creator:: Hamner, Rebecca A.
Abstract:: The wood products industry is influenced heavily by family ownership along the entire value chain. Although family ownership affects each link of the wood products value chain, there has been little research into the importance of products originating from family forestland. Specific attributes of products, such as origin or environmental...
Resource Type:: Masters Thesis
Full Text:: , Dr. Mark Needham, Dr. Jeff Morrell, and Dr. Leslie Burns. I acknowledge the Department of

DNA based artificial nanostructures : directed assembly of cellulose nanocrystals into advanced nanomaterials

Creator:: Mangalam, Anand Paul
Abstract:: The fabrication of nano-scale devices is a challenging, but potentially important, technology that has drawn a great deal of interest among researchers. Such nanoscale constructions utilizing a bottom-up approach for device building have many foreseeable applications in areas as diverse as miniaturized electronics, sensors, and biomedical devices. One of the...
Resource Type:: Dissertation
Full Text:: -(4-methylmorpholinium)ethyl carbodiimide and p-toluenesulfonate as activating reagents. Such an

Corporate social responsibility in the forest products industry : an issues management approach

Creator:: Panwar, Rajat
Abstract:: Business is a social institution and society has always designated a role for business which has been undergoing changes with changing societal values and paradigms. Thus while business has always had some responsibilities, the modern connotation of the words corporate social responsibility commonly refers to business assuming responsibilities in economic,...
Resource Type:: Dissertation
Full Text:: extends to Dr. John Buckhouse for serving on my committee. I am also thankful to Dr. Jeff Morrell and Mr

In-situ Surface Modification of Wood with Different Hot Press Platen Metallurgies

Creator:: Freitas, Shawn Robert
Abstract:: As the forest industry moves toward the use of younger trees and production of an increasing number of composite products improving durability has gained importance. Coatings are one of the most widely used methods for improving wood durability because they improve resistance to water penetration, and subsequent shrinking and swelling,...
Resource Type:: Dissertation
Full Text:: development, and good old fashioned logic. Thank you Jeff Morrell and Milo in particular for constantly

Spalting Fungi : Genetic Identification, Material Interactions and Microscopical Characteristics of Extracted Pigments

Creator:: Vega Gutiérrez, Sarath Mercedes
Abstract:: Spalting fungi show strong potential as natural colorants on a variety of materials, specifically textiles and wood. Four species of spalting fungi are currently utilized in this manner: Scytalidium cuboideum, which produces a red pigment called draconin red, Scytalidium ganodermophthorum, that produces an unknown yellow pigment, and Chlorociboria aeruginosa and...
Resource Type:: Dissertation
Full Text:: Golinski, Piotr, Thomas P Krick, Robert A Blanchette, and Chester J Mirocha. 1995. "Chemical

Defining drug court participant community college success

Creator:: Hamilton, Christopher J.
Abstract:: Drug courts are collaborative community programs that provide active oversight and compliance monitoring of individuals engaged in the criminal justice continuum. Adult drug court program requirements include alcohol and other drug treatment, community support services, and other ancillary services intended to promote life changes in participants and ultimately, prosocial behaviors....
Resource Type:: Dissertation
Full Text:: activity” (p.4). More research is necessary to understand how drug court participants are affected by

Saccharification and fermentation of lignocellulosic biomass using Trichoderma reesei cellulases and Saccharomyces cerevisiae

Creator:: Chung, Yun-Chin
Abstract:: The efficiency of cellulose hydrolysis under straight saccharification and simultaneous saccharification and fermentation (SSF) conditions was evaluated using three lignocellulosic materials (switchgrass, cornstover, and poplar), which had been pretreated with dilute sulfuric acid under conditions which optimized xylose concentrations in the prehydrolysate liquid. Yields of glucose, cellobiose and ethanol obtained...
Resource Type:: Dissertation
Full Text:: , Dr. Jeff Morrell and Dr. Robert Leichiti, for their time and consideration. I especially appreciate

The Relationship Between Immigrant Status and Secondary and Postsecondary Attainment in Secondary Students

Creator:: Haviland, Samantha L.
Abstract:: The American School Counseling Association’s Code of Ethics states that counselors and counselor trainees must be competent providers of multicultural counseling, able to practice effectively with clients whose identities differ from their own. Pre-service school counselors receive very little training around immigration status and how to work with clients who...
Resource Type:: Dissertation
Full Text:: encourage the maximum development of every student” (p. 1). Similarly, the Multicultural and Social

Intentions of US forestland owners to participate in emerging carbon markets : a behavioral modeling approach

Creator:: Thompson, Derek W.
Abstract:: Policy makers in the United States (US), following recommendations made by the international scientific community, have drafted national emissions reduction legislation in hopes of minimizing the harmful effects of global climate change. Included in this legislation is a national cap-and-trade system with provisions for carbon offsets. Specific provisions for forest...
Resource Type:: Dissertation
Full Text:: Needham for his guidance with statistical analyses and survey methodology. My appreciation to Dr. Jeff

The Experiences of Students Who Complete in a Successful Distance Learning Course

Creator:: Smith, Steve
Abstract:: Background: Prior research has shown that distance learning courses have higher failure rates at community colleges then equivalent face-to-face to courses. There are a few programs and courses, however, that consistently achieve completion rates as high as or higher than their equivalent face-to-face courses. The research to date has not...
Resource Type:: Dissertation
Full Text:: colleges, subjects, and courses, even after we adjust for student mix and other factors” (p. 7). The few

Remote sensing of forest biomass dynamics using Landsat-derived disturbance and recovery history and lidar data

Creator:: Pflugmacher, Dirk
Abstract:: Improved monitoring of forest biomass is needed to quantify natural and anthropogenic effects on the terrestrial carbon cycle. Landsat's temporal and spatial coverage, fine spatial grain, and long history of earth observations provide a unique opportunity for measuring biophysical properties of vegetation across large areas and long time scales. However,...
Resource Type:: Dissertation
Full Text:: sharing computer code and for providing scientific advice. I thank Richard Waring, John Bolte, and Jeff

Perceptions on Spalted Wood: The Influence of Historic Spalting Patterns and Valuation of Spalted Wood Around the World.

Creator:: Vega Gutiérrez, Patricia T.
Abstract:: During the 1400s – 1600s, spalted wood was an expensive commodity used in marquetry style artworks across primarily Germany and Italy. It fell out of favor during the Industrial Revolution, but is currently experiencing resurgence in popularity with US woodturners. How spalted wood is used, and what types of spalted...
Resource Type:: Dissertation

An examination of several methods of quantifying forest structure in headwater riparian forests of western Oregon

Creator:: Haxton, Zane A.
Abstract:: Headwater streams are generally small, first-order streams that can comprise up to 80% (by stream length) of the drainage network in mountainous areas of the Pacific Northwest. These streams are intimately connected with downstream reaches, serving as a source of sediment, woody debris, organic matter and nutrients. The surrounding forests...
Resource Type:: Masters Thesis
Full Text:: under him. My other committee members, Drs. Doug Maguire, Dave Hibbs, Joan Hagar and Jeff Morrell

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