Index Catalog // ScholarsArchive@OSU

Spatial and Temporal Dynamics of Broad-scale Predictive Models : Influences of Scale

Creator:: Hooper, Samuel
Abstract:: Developing accurate predictive distribution models requires adequately representing relevant spatial and temporal scales, as these scales are ultimately reflective of the relationships between distributions and influential environmental conditions. In this research, we considered both spatial and temporal scale and the influence each has on predicting broad-scale distributions of two disparate...
Resource Type:: Masters Thesis
Full Text:: Robert E. Kennedy Developing accurate predictive distribution models requires adequately

Pacific Madrone Leaf Blight Detection with Unmanned Aerial Systems and Machine Learning

Creator:: Barker, Matthew I.
Abstract:: Ground-based assessments of foliar diseases including leaf blight are time-consuming and costly. We investigated the potential for using an unmanned aerial system (UAS) in conjunction with a multispectral sensor to determine whether we could more efficiently and reliably detect and quantify leaf blight in Pacific madrones. Our methods included ground-based...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: ______________________________________________________ Michael G. Wing

Assessing the impact of temperature on grape phenolic metabolism

Creator:: Cohen, Seth D.
Abstract:: Many climatic factors influence grape berry composition including nutrient status, water availability, biotic stress, sun exposure and temperature. Previous research examined the effects of many factors listed above and much progress has been made. It is often difficult, however, to separate effects that typically confound each other, such as sun...
Resource Type:: Masters Thesis
Full Text:: : _______________________________________________________ James A. Kennedy Many climatic factors influence grape berry composition including

Understanding Patterns of Timber Harvest and their Drivers : A Quantitative Assessment of Forest Governance in the Western Cascades of Oregon

Creator:: Harris, Tyler C.
Abstract:: Effective forest governance is central to the efficient, sustainable, and equitable use of forest resources, yet challenges in assessing forest governance impede efforts to improve it. Contemporary forest governance involves decisions by multiple stakeholders across multiple sectors of economy and society, from local to global scales – making forest governance...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Robert E. Kennedy Effective forest governance is central to the efficient, sustainable, and

Analysis of proanthocyanidin A2 and its presence in various commercial products

Creator:: Koerner, Jayma L.
Abstract:: Proanthocyanidins (PACs) containing A-type linkages, like those found in cranberry, have been implicated as beneficial phenolic compounds in human health, but much research is still required to better understand their activity fully. One major impediment to progress has been the existence of effective analytical methods for A-type PAC quantification. This...
Resource Type:: Masters Thesis
Full Text:: . Kennedy Proanthocyanidins (PACs) containing A-type linkages, like those found in cranberry, have

Effect of berry integrity on proanthocyanidin extraction during wine production

Creator:: Cerpa-Calderon, Fiorella Karen
Abstract:: Proanthocyanidins are a grape-derived phenolic class of compound that provide wine with bitterness and astringency. Because of this, proanthocyanidins are considered to be essential components of wine quality. Proanthocyanidins are localized in the seed, skin and stem tissue of the grape berry and the composition of proanthocyanidins will vary depending...
Resource Type:: Masters Thesis
Full Text:: James A. Kennedy Interest in research on the phenolic compounds in red wine continues to grow due

Composition of flavonoid phenolic polymers isolated from red wine during maceration and significance of flavan-3-ols in foods pertaining to biological activity

Creator:: Aron, Patricia M.
Abstract:: Representing the most common flavonoid consumed in the American diet, the flavanols and their polymeric condensation products, the proanthocyanidins, are regarded as functional ingredients in various beverages, whole and processed foods, herbal remedies and supplements. Their presence in food affects food quality parameters including astringency, bitterness, sourness, sweetness, salivary viscosity,...
Resource Type:: Masters Thesis
Full Text:: : _________________________________________________ James A. Kennedy Representing the most common flavonoid consumed in the American diet

Effects of oil and natural gas development on territory occupancy of ferruginous hawks and golden eagles in Wyoming, USA

Creator:: Wallace, Zachary P.
Abstract:: Energy development is expanding rapidly across the western US. Negative effects have been documented for some wildlife, but consequences of development are unclear for other taxa, including raptors. We had the opportunity to examine effects of oil and natural gas development on two raptor species of conservation concern, ferruginous hawks...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________________________________ Patricia L. Kennedy Energy development is expanding rapidly across the western US

Simulating changing diameter distributions in a softwood sawmill

Creator:: Salichon, Maxence C.
Abstract:: Sawmills are very complex systems that involve many manufacturing processes. The variability of their raw material adds further to this complexity as each log has characteristics that determine its processing path. Therefore, computer simulation is a very useful technique for analyzing sawmill performance. This thesis describes a simulation computer model...
Resource Type:: Masters Thesis
Full Text:: Kennedy Sawmills are very complex systems that involve many manufacturing processes. The variability of

Incorporation of diet information derived from Bayesian stable isotope mixing models into mass-balanced marine ecosystem models : a case study from the Marennes-Oléron Estuary, France

Creator:: Pacella, Stephen Roger
Abstract:: This thesis presents two related studies on the methodology for creating, and subsequently analyzing, an inverse food web model of an intertidal seagrass bed. The first study (Chapter 2) describes, for the first time in the literature, a method for incorporating isotopic information gained from Bayesian mixing models into an...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Stephen Roger Pacella for the degree of Master of Science in Environmental

ScholarsArchive@OSU

Spatial and Temporal Dynamics of Broad-scale Predictive Models : Influences of Scale

Pacific Madrone Leaf Blight Detection with Unmanned Aerial Systems and Machine Learning

Assessing the impact of temperature on grape phenolic metabolism

Understanding Patterns of Timber Harvest and their Drivers : A Quantitative Assessment of Forest Governance in the Western Cascades of Oregon

Analysis of proanthocyanidin A2 and its presence in various commercial products

Effect of berry integrity on proanthocyanidin extraction during wine production

Composition of flavonoid phenolic polymers isolated from red wine during maceration and significance of flavan-3-ols in foods pertaining to biological activity

Effects of oil and natural gas development on territory occupancy of ferruginous hawks and golden eagles in Wyoming, USA

Simulating changing diameter distributions in a softwood sawmill

Incorporation of diet information derived from Bayesian stable isotope mixing models into mass-balanced marine ecosystem models : a case study from the Marennes-Oléron Estuary, France

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