Published November 1931. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
A water bird census was taken at three points on Upper Klamath Lake at weekly intervals extending over a period from September 9, 1936 to May 29, 1937. A total of 24,319 birds was recorded in field records and included thirty-two species. Totals of birds by weekly field trips show...
Beginning in the late 1960s and throughout the past decade, unusual, perhaps neoplastic, large cells with rather consistent characteristics were described in mussels, clams, and oysters from several bays in the United States and the United Kingdom. The large, characteristic cells are thought by many workers to be abnormal leukocytes...
The purpose of this study was to determine and explain
attitudes toward intercollegiate athletics of undergraduate
students in three academic majors attending Oregon State
University.
The attitudes of a proportionate random sample
consisting of 215 students were measured according to their
responses to thirty-two Likert scale items containing six
sub-scale...
Published September 1998. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published September 1998. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Historical forest harvesting practices were reviewed in the original Alsea Watershed Study where they found increased energy
loading to the stream and produced higher stream temperatures. This was an important early research site that led to the
development of contemporary forest management practices to protect water quality and fish habitat...
The case study, Implications of Energy Density on Weight Loss, examined the relationship between the consumption of energy dense foods such as whole fruits, whole vegetables and fiber with weight loss. The case study examined four participants from the LITEN Up study, which focused on the effects of a diet...
This case study describes and analyzes the experiences of Mt. Hood Community
College (MHCC) in its implementation of four retention interventions. Each of the four
interventions are described in detail. Discussion is framed within the context that retention
is a by-product of institutional renewal brought about by implementing interventions that...
Small, private forestland owners own about 12% of Oregon’s forestland and have the unique ability to implement innovative forest management activities. In southwest Oregon, extreme ecological variability occurs over small spatial scales and requires fine-scale silvicultural treatments that match the precise ecological setting and management objectives of the forests in...
The High Plains Aquifer, a natural resource critical to the United States economic, energy and food security, faces significant sustainability challenges in the coming years. This case study aims to identify the main causes and consequences of unsustainable use of the High Plains Aquifer. The agriculture industry plays the largest...
This case study describes in detail how to conduct a performance review of forest product industries. This case study uses the paper industry for illustration, but the principles and methods presented are such that you will be able to conduct a performance review in any industry.
College students are learning to make increasingly complex financial decisions, facing high tuition and living costs while having limited means to make a living. Studies show that most college students lack sufficient financial literacy. They need a well-designed financial education, especially if they are low-income, first-generation students whose parents are...
Intensive forest management requires efficient logging techniques
to remain economical. Commercial thinnings and shorter
rotations increase piece count inversely to piece size. Continued
research aimed toward effective log handling processes is essential.
The purpose of this study was to evaluate one case of a self-loading
log truck (integral loader and...
Land management agencies are faced with decreasing budgets and staff, even as acres in need of restoration treatment are increasing. Rural communities in the West are still suffering from sharp declines in timber harvests since the 1990s and are now contending with wildfires that are increasing in size and severity....
Autonomous buoys were deployed in 2011 in the central Arctic: An Ice-Tethered Profiler (ITP) and Ice Mass Balance (IMB) buoys were deployed in the Makarov basin; a Polar Ocean Profiling System (POPS) and Ice Thickness (Ice-T) buoy were deployed on the Eurasian Basin. The two different sites were approximately 70km...
Commercial thinning young growth forests is an increasingly
important silvicultural technique for improving second growth
management of Douglas-fir stands. Research aimed at advancing the
efficiency of skyline logging operations in small wood timber stands
is essential in order to make thinning these young stands economical.
The purpose of this study...
The purpose of this study was to describe the level to which a target work culture based on core organizational values was shared in one lumber manufacturing plant. The organization under study perceived that their culture was a source of competitive advantage and was key to their success in safety,...
Since the passage of the Education for All Handicapped Children Act in 1975, a number of common problems have emerged. Primarily they involve the difficulties both experienced and created by public schools attempting to fulfill the federal mandate to provide students with disabilities an appropriate public education. The purpose of...
Presented here is a case study of the problem-solving behaviors of upper-division undergraduate physics majors. This study explores the role of visual representations in students' problem solving and provides a foundation for investigating how students' use of visualization changes in the upper-division physics major. Three independent studies were conducted on...
Learning disabled students in special education
programs have not been demonstrating equal achievement
gains in reading when compared to their non-handicapped
peers.
The purpose of this study was to determine the effects
of Accelerated Learning methods in teaching reading to ten
learning disabled middle school students in southwest
Washington.
Accelerated...
Collaborative governance plays a significant role in forest management on public land in the Pacific Northwest. The method of governance offers the unique ability to engage a diverse range of stakeholders to reach consensus regarding forest management action. Evaluating the dynamics of the collaborative and its members is essential to...
The problem of this thesis is to evaluate small tracts of public
domain land as to their best use in an area where the Bureau of Land
Management desires to terminate managerial responsibilities. The
area chosen is located in the Prineville District, Bureau of Land
Management and is within the...
The Atlantic deep sea red crab (Chaceon quinquedens) is the target of a small, directed fishery in the Northeast US, which has been managed using total allowable annual catches (TACs) at the fleet level since 2002. Although not a catch share fishery, it shares many of the same features, behaviors,...
Published March 1993. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
A well preserved specimen of amber Strepsiptera was erroneously described as Stylops neotropicallis Kogan and Poinar, 2010. The taxonomic position of the species was based on a count of 6 antennomeres (typical of the Stylopidae), however, further observations showed that there are actually 7 antennomeres, which places the fossil in...
Complex conceptual system design trade studies
traditionally consider risk after a conceptual design has
been created. Further, one person is often tasked with
collecting risk information and managing it from each
subsystem. This paper proposes a method to explicitly
consider and trade risk on the same level as other important...
Various natural language processing (NLP) tasks necessitate deep models that are fast, efficient, and small based on their ultimate application at the edge or elsewhere. While significant investigation has furthered the efficiency and reduced the size of these models, reducing their downstream latency without significant trade-offs remains a difficult task....
The Willamette River Greenway Program was created by an act of the Oregon Legislature in 1968 and modified by a second act in 1973.
The purpose of the program was to protect the natural environment of the river from approximately the foot of the Cascade Range near Eugene, north to...
Ashlock (1975) identified career education descriptive
factors as related to eight content areas of the Theory and
Practicum II program at Oregon State University. Based on
this research and the research literature, a Career Education
Competency-Based Instructional Model was devised. By
modifying the curriculum, this career education conceptual
model for...
This study reports the design, construction, and evaluation of an automatic cardiac massage device and support system. The design incorporates the principle of a cardioplethysmograph operated in reverse, such that pneumatic power fed to the prosthesis will mechanically impart a massaging action to the heart. Basically, the prosthesis is a...
K-Ar and ⁴⁰Ar-³⁹Ar geochronologic
data reveal the Paleocene to Eocene eruptive
history of volcanic centers which produced the
basaltic basement rocks of the Coast Range of
Oregon and Washington. Volcanism was short
lived at each center and migrated with time from
the northern and southern ends toward the
center, near...
This report summarizes the results of a field study of a population
of the Pacific mountain beaver, Aplodontia rufa pacifica, from
August 1965 through August 1967. The study site consisted of a 13. 5-
acre grid on a logged over area in the Coast Range Mountains of
Benton County, Oregon....
Tree biomass is typically estimated using statistical models. This review highlights five limitations of most tree biomass models, which include the following: (1) biomass data are costly to collect and alternative sampling methods are used; (2) belowground data and models are generally lacking; (3) models are often developed from small...
We call for the promotion of faculty innovation & entrepreneurship (I&E), across disciplines, and its recognition in promotion and tenure processes– thereby enabling universities to better serve as a talent and idea engine for the Nation’s innovation economy, and evolve and respond in a time of enhanced societal needs and...
An investigation was made to test the method of Head on the
flow about a circular cylinder with suction. The method of Head is an
approximate method of obtaining solutions to the boundary layer equations.
The method was adapted to the digital computer to facilitate
performing the calculations, and a...
The probable pollution distribution and flushing times have been
calculated for the Columbia River Estuary, a coastal plain estuary.
The pollution distribution was determined by the fresh water fraction
and by the diffusion equation. The flushing times were calculated by
the modified tidal prism method and by the fraction of...
A modeling technique for simulating the noise
performance of chopper-stabilized switched-capacitor
filters using SPICE2 is presented. A method for
selection of switched-capacitor network (SCN) stages
to be chopped and an op amp topology for low noise
applications are also outlined. Validity of the
modeling is verified by the close agreement...
With sequential computing technology reaching its speed limits, parallel processing is emerging as the key to very-high-speed computation. However, developing a parallel program is by no means a simple task; neither is analyzing the performance of parallel programs.
C* is a high-level data-parallel language that hides explicit message passing and...
A project is described wherein a source code browser was implemented based upon tasks performed by software engineers looking for source code modules with only UNIX utilities. These tasks were discovered by observing the actions of software engineers looking for code modules in a library, The success of the implementation...
The objective of this study was to develop a decision making tool to determine economic feasibility of artisan cheese operations. A survey of current Oregon artisan cheese companies was used to gain knowledge of the fixed and variable costs associated with cheese production and business start-up. The data from this...
Disasters result from hazards affecting vulnerable people. Most disasters research by anthropologists focuses on vulnerability; this article focuses on natural hazards. We use the case of wildfire mitigation on United States Forest Service lands in the northwestern United States to examine social, political, and economic variables at multiple scales that...
Scientists in the biological sciences need to retrieve information from a variety of data collections, traditionally maintained in SQL databases, in order to conduct research. Because current assistant tools are designed primarily for business and financial users, scientists have been forced to use the notoriously difficult command-line SQL interface, supplied...
Published March 1986. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Engaging large numbers of undergraduates in authentic scientific discovery is desirable but difficult to achieve. We
have developed a general model in which faculty and teaching assistants from diverse academic institutions are trained to teach a
research course for first-year undergraduate students focused on bacteriophage discovery and genomics. The course...
Seafood is one of the most diverse and highly traded natural resources worldwide. Widespread evidence of increased seafood fraud and IUU fishing has placed enormous pressure on industry and governments to determine the authenticity, safety, and sustainability of seafood. The recently established US National Ocean Council has addressed several gaps...
Plasmid transformation of chlamydiae has created new opportunities to investigate host–microbe interactions during chlamydial infections; however, there are still limitations. Plasmid transformation requires a replicon derived from the native Chlamydia plasmid, and these transformations are species-specific. We explored the utility of a broad host-range plasmid, pBBR1MCS-4, to transform chlamydiae, with...
Self-harm, which consists of non-suicidal self-injury and attempted suicide, is a public health problem that is not well understood. There is conflicting evidence on the role of gender in predicting self-harm. Abuse history also is a potentially relevant factor to explore, as it is related to both gender and self-harm....
Tidal phenomena in the Indonesian
seas are among the most complex in the
world. Complicated coastal geometries
with narrow straits and myriad small islands,
rugged bottom topography next to
wide shelves of shallow water, and large
quantities of tidal power input from the
adjoining Indian and Pacific Oceans—all
combine to...
The brief historical occurrence of aquaculture introduces the science that evolved from the early studies on cod propagation in 1864, and the export of these concepts about stock enhancement through protection of early life history stages through what has always been considered the ‘critical periods’ during which the majority of...
This project will act as a resource in secondary schools and workplaces to help facilitate discussion of discrimination and racially motivated crimes against people in the AAPI community. Decades of oppression have led us to the current oppression of Asian Americans, notably showcased during the COVID-19 pandemic. This project highlights...
This publication is designed to help you learn more about agricultural cooperatives or to help you think through the process of organizing and
operating such a business. While the focus is on creating a new
cooperative, many of the ideas may be of interest to those thinking
about reorganizing or...
I will present a brief history of fish processing along the Pacific Coast of California and Oregon, and recollect some childhood memories of “laying about” in fish houses and fishing boats in my “home port” of Fort Bragg. As many of you know, the past 25 years of my career...
Cannabis sativa L. is emerging as an economically important crop, particularly for its high levels of cannabinoid production. One of these cannabinoids, cannabigerolic acid (CBGA), is the precursor to many well-researched cannabinoids such as the psychotropic delta-9-trans-tetrahydrocannabinolic acid (Δ9-THCA i.e., THCA) and the medically relevant cannabidiolic acid (CBDA). CBGA has...
This thesis develops a model for locating field offices for the
Motor Vehicles Division of Oregon. The locations are determined by
minimizing the total cost to the Public. This is reasonable because
the Public finances the operation and the opening of the offices
through tax dollars, and it bears the...
Conservation impacts on protected sea turtles and marine mammals are a longstanding concern in U.S. swordfish fisheries, including the Hawaii shallow-set longline (SSLL) fishery and the west coast drift-gillnet (DGN) fishery. Observer records for these fisheries document a history of rare-event interactions with large cetaceans and endangered sea turtles. Since...
Published November 1945. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published January 1968. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
In an effort to foster a collaborative approach to advancing the ocean energy industry, OWET convened the OWET 2010 Developersʼ Summit on September 27 and 28, 2010 in Portland, Oregon. The purpose of the Summit was to create an open dialogue among developers, utilities, and regulatory and policy leaders to...
In this thesis, we propose a Blockchain-based distributed protocol for enabling deployment of dynamic, on-demand IoT networks. Specifically, the proposed protocol leverages Blockchain technology to: (i) enable distributed and secure authentication, registration, and management of IoT devices; (ii) provide fast discovery of IoT resources and scalable and secure instantiation of...
This paper continues exploration in the area of
programming for parallel computers. The appendix to the
paper contains an extensive survey of the literature related
to parallel computers and parallel programming techniques.
The paper itself presents a new approach to solving
the Laplace equation on a. parallel computer. A new...
The existence of a “digital divide,” or inequalities of access to digital technologies among different American subpopulations, has been hotly debated and contested since the National Telecommunications and Information Administration first popularized the phrase in 1995. The purpose of this thesis is to critically examine the dominant discourses around the...
In 1993 and 1994 total, there were 247 people reported to have been bitten by animals in Benton County, Oregon. Of the 243 biting animals, 70 percent were dogs, 25 percent cats, and 5 percent other animals such as ferrets, mice, rats, bats, and skunks. Fifty-four percent of all bites...
Published May 1977. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the Sea Grant Catalog: http://seagrant.oregonstate.edu/publications
A taxonomic investigation was made of 24 taxa belonging
to the section Trichodium (Michx.) Trin., of
Agrostis, and the genus Podagrostis. Experimental methods
were employed, including: uniform garden culture of transplants
and plants grown from seeds collected in natural
populations; breeding studies; physiological and phenological
investigations; cytological studies; ecological
studies...
A biosystematic investigation was undertaken in 15
species and three subspecies of the genus Aster, in western
North America. Previous studies had been based entirely on
external morphological features, and it was believed that
much could be learned about the natural affinities of the
taxa by exploring their cytological and...
Purpose: The purpose of this investigation was to identify a deep-water running (DWR) style that most closely approximates terrestrial running. Methods: Twenty healthy male and female intercollegiate (NCAA III) distance runners were videotaped from the right sagittal view while running on a treadmill (TR) and in deep water at 55-60%...
Forest management requires classification of forest stands into groupings or types based on structural similarities, even when structure varies continuously along gradients. Managed, mixed-species, multi-aged forest stands often display complex structures containing extreme variation in trees size, density, and species composition, and as a result have diverse canopy structures. A...
Biological studies were conducted on a histozoic myxosporidan
Myxobolus insidiosus (Wyatt and Pratt, 1963) from the musculature of
Oncorhynchus tshawytscha (Walbaum). This organism is known to
occur in spring chinook salmon in Oregon and coho salmon O. kisutch
(Walbaum) in Washington. In addition Myxobolus kisutchi (Yasutake
and Wood, 1957) was...
Caurinus dectes Russell is a minute, brachypterous scorpionfly
which was discovered at Marys Peak, Benton County, Oregon, in
1976, and subsequently described as the only representative of the
subfamily Caurininae within the Boreidae (snow scorpionflies).
Caurinus dectes is now known to range from the Olympic Peninsula
and Northern Cascades in...
This thesis research consists of an investigation of the human
influences on wildlife in Belize. The study was accomplished by the
collection and analysis of data with respect to land use, habitat
characteristics, and wildlife status in Belize. Requirements and
status of many species are tabulated in order to give...
While sophisticated tools are used to monitor behavioral changes of large marine vertebrates, determining whether these changes are meaningful for management and conservation is challenging. The Population Consequences of Disturbance model proposed a bioenergetics model to detect biologically meaningful population responses, where disturbance costs are linked to lost energy. The...
The individual size of fish as a proxy for life-history traits and market
value displays an important, yet in bioeconomic modelling often ignored
biological and economic parameter. This raises the question if and to what
extent the consideration of a pricing related to the individual size
influences optimal harvest strategies....
Scallop fisheries are often characterized by variable abundance and periodic mass mortality occurrences. Area rotation is a respected management tool for sedentary species. A bioeconomic simulation model that incorporates the spatial and temporal distribution of scallop beds and fishing effort is presented. The model is user-friendly and was designed for...
This paper investigates the application of cellular automata (CA) models in bioeconomic studies involving varying biological growth and area distribution. A simple 2D continuous cellular automata (CCA) model is presented and incorporated in a fish harvest model based on standard assumptions of economic rational behaviour by individual decision makers. The...
The Northern Prawn Fishery is one of the most valuable fisheries in Australia with a yearly estimated value of production of about $64mil. Nine prawn species are commercially harvested from the Northern Prawn Fishery with 80% of annual average catch represented by the banana prawn (Fenneropenaeus merguiensis) and the tiger...
A bioeconomic model allowing different degrees of harvesting closures for two sub-stocks consisting of mature and immature fish is presented. Hence the model opens for partial closures of fisheries on both sub-stocks. Migration between the two sub-stocks is defined as recruitment of the young to the mature sub-stock, and egg...
A scientific knowledge gap exists with regard to how benthic habitat is affected by destructive fishing methods, such as bottom trawling, and how this impacts upon the productivity of commercial fish stocks. This
article addresses analytically the effects of destructive fishing practices of a single gear fishery on a non-renewable...
The West Coast Rock Lobster fishery is Australia's most valuable commercial fishery. Around 550 vessels
harvest 10,500 tonnes of lobster per annum. The industry has an enviable track record of biological
management which has been based on a variety of input controls. In recent years this has necessitated three
significant...