Index Catalog // ScholarsArchive@OSU

Evaluating the Ecological Trade-Offs of Riparian Thinning for Stream Ecosystems in Second-Growth Redwood Forests of Northern California

Creator:: Roon, David A.
Abstract:: Riparian forests provide a myriad of ecosystem functions for adjacent streams and rivers, and due to these linkages, changes in riparian forest conditions can have direct implications for stream ecosystems. Resource managers in the coast redwood forests (Sequoia sempervirens) of northern California (USA) are actively thinning second-growth stands to accelerate...
Resource Type:: Dissertation
Full Text:: : ___________________________________________________________ Jason B. Dunham Riparian forests provide a myriad of ecosystem functions for adjacent

Chromium Phillips Catalyst on Tin Oxide Substrate: Deposition and Characterization

Creator:: Chen, Di
Abstract:: In order to synthesize polyethylene by the microreactor with a catalyst, this thesis prepares the chemical coating layers for the reactor channel. There are two layers in the channel: the Phillips catalysts and an antimony-doped tin oxide layer on glass substrate. The Phillips catalyst help to synthesize polyethylene in the...
Resource Type:: Masters Thesis
Full Text:: . 3 Figure 2: Microreactor mechanism This project uses a Phillips ethylene polymerization

Does Fatigue Influence the Assessment of Critical Speed when Multiple Test Trials are Conducted in a Single Session

Creator:: Jones, Cameron
Abstract:: The Critical Power - W’ model has many advantages compared to the traditional VO2max test, including tracking fitness changes over time in well trained athletes, predicting performances due to its discrete aerobic and high intensity tolerance variables, and prescribing exercise intensities with increased accuracy. However, a major disadvantage of this...
Resource Type:: Masters Thesis
Full Text:: Influence the Assessment of Critical Speed when Multiple Test Trials are Conducted in a Single Session

Bacterial and Host Factors Contributing to Mycobacterium avium subspecies paratuberculosis Persistent Infection

Creator:: Phillips, Ida L.
Abstract:: Mycobacterium avium subspecies paratuberculosis (MAP) is the causative agent of Johne’s disease, a chronic granulomatous enteritis that plagues domestic and wild ruminants globally. During the silent stages of Johne’s disease, infected animals intermittently shed bacteria for years prior to clinical diagnosis during advanced disease stages. This strategy allows MAP to...
Resource Type:: Dissertation
Full Text:: . Phillips A DISSERTATION submitted to Oregon State University

A Contingency-Based Evaluation for Beaver Restoration of Salmon Habitat in Oregon Coastal Streams

Creator:: Stevenson, John R.
Abstract:: Streams across the western United States are impaired from human alterations that have reduced freshwater habitat by simplifying channel complexity and disconnecting floodplains (Knox et al., 2022; Waples et al., 2008; Wohl, 2014). Climate change is likely to continue exacerbating these risks by warming summer surface stream temperatures (Crozier et...
Resource Type:: Dissertation
Full Text:: August 21, 2023 Title: A Contingency-Based Evaluation for Beaver Restoration of Salmon Habitat in

Validity and Reliability of the Unsupervised, Isokinetic Three-Minute All-Out Cycling Test for Critical Power

Creator:: Bronson, Staci M.
Abstract:: PURPOSE: We tested the hypothesis that the unsupervised, isokinetic 3- minute all-out cycling test (3MT) would be a valid and reliable way to determine end power (EP) and work done above end power (WEP). Additionally, we hypothesized that EP would successfully demarcate between heavy and severe-intensity exercise and thus represent...
Resource Type:: Dissertation
Full Text:: approved: ________________________________________ Jason T. Penry PURPOSE: We

Durability and Performance of High Early Strength Concrete for Structural Bridge Deck Overlays

Creator:: Smith, Jeremy A.
Abstract:: High early strength concrete (HESC) allows for faster construction with less impact on traffic, thus reducing the indirect costs associated with a project. There are multiple methods for achieving early strength, such as alternative cements like calcium sulfoaluminate (CSA) or chemically accelerated portland cements. The standard criteria for an HESC...
Resource Type:: Masters Thesis
Full Text:: ABSTRACT OF THE THESIS OF Jeremy A. Smith for the degree of Master of Science in Civil Engineering

Evaluation of the Efficiency of Supplementary Cementitious Materials to Prevent Alkali-Silica Reaction in Concrete with Highly and Very Highly Reactive Aggregates

Creator:: Chopperla, Krishna Siva Teja
Abstract:: The most common test methods to evaluate alkali-silica reaction (ASR), the concrete prism test (CPT) and the accelerated mortar bar tests (AMBT), have limitations and are not entirely reliable in terms of predicting the performance of concrete with prevention measures under field conditions. In this study, the miniature concrete prism...
Resource Type:: Dissertation
Full Text:: , Dr. Jason H. Ideker. You have provided me a great support and encouragement throughout my Ph.D

Mechanisms of Vigilance Loss in Sensory and Cognitive Tasks

Creator:: Gyles, Shannon P.
Abstract:: When observers monitor for infrequent signals for extended durations, they generally experience a decline in detections over time. This decline is termed the vigilance decrement. Current theories of vigilance attribute the decrement to three potential mechanisms: conservative shifts in response bias, losses of sensitivity, and an increased rate of attentional...
Resource Type:: Dissertation
Full Text:: approved: _____________________________________________________________________ Jason S. McCarley

Not Good Enough: Ironic Efficiency in Automated-Aided Signal-Detection

Creator:: Munoz Gomez Andrade, Fernando
Abstract:: During applied signal-detection (e.g., airport-baggage screening) human operators can be assisted in their decision-making process by automated devices. Automation implementation is aimed at increasing performance relative to unaided levels. Generally, this intended effect is empirically observed. However, operators consistently fall short of optimal levels of aided performance, indicating suboptimal aid-use...
Resource Type:: Masters Thesis
Full Text:: : ______________________________________________________ Jason S. McCarley During applied signal-detection (e.g., airport-baggage

ScholarsArchive@OSU

Evaluating the Ecological Trade-Offs of Riparian Thinning for Stream Ecosystems in Second-Growth Redwood Forests of Northern California

Chromium Phillips Catalyst on Tin Oxide Substrate: Deposition and Characterization

Does Fatigue Influence the Assessment of Critical Speed when Multiple Test Trials are Conducted in a Single Session

Bacterial and Host Factors Contributing to Mycobacterium avium subspecies paratuberculosis Persistent Infection

A Contingency-Based Evaluation for Beaver Restoration of Salmon Habitat in Oregon Coastal Streams

Validity and Reliability of the Unsupervised, Isokinetic Three-Minute All-Out Cycling Test for Critical Power

Durability and Performance of High Early Strength Concrete for Structural Bridge Deck Overlays

Evaluation of the Efficiency of Supplementary Cementitious Materials to Prevent Alkali-Silica Reaction in Concrete with Highly and Very Highly Reactive Aggregates

Mechanisms of Vigilance Loss in Sensory and Cognitive Tasks

Not Good Enough: Ironic Efficiency in Automated-Aided Signal-Detection

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