Many software maintenance problems are caused by using text editors to change programs. A more systematic and reliable way of performing program updates is to express changes with an update language. In particular, updates should preserve the syntax- and type-correctness of the transformed object programs. We describe an update calculus...
The meaning of biological sequences is a central problem
of modern biology. Although string matching is well understood
in the edit-distance model, biological strings
with transpositions and inversions violate this model's
assumptions. To align biologically reasonable strings, we
proposed the Walking Tree Method [4,5,6,7,8], an
approximate string alignment method that...
It is well known that the Fibonacci numbers can be expressed in the
form Round {1/√5 λ₀[superscript n]} where λ₀ = (1 + √5)/2. [Knu75] We look at integer sequences which are solutions to non-negative difference equations and show that if the equation is 1-Bounded then the solution can be...
This paper reports on an empirical study involving end users that addresses the question of whether it is possible to provide the benefits of formal testing within the informal spreadsheet paradigm. We have developed a "What You See Is What You Test" (WYSIWYT) methodology that brings the benefits of formal...
We present a meta-model as a process maturity framework that can be effectively used to
identify the key practices to initiate and sustain a software process improvement effort
focused on a single process area. Our approach moves away from the overall software
development process and computation of maturity levels and...
Many machine learning applications require
classifiers that minimize an asymmetric cost
function rather than the misclassification
rate, and several recent papers have addressed
this problem. However, these papers
have either applied no statistical testing
or have applied statistical methods that are
not appropriate for the cost-sensitive setting.
Without good statistical...
This paper introduces the even-odd POMDP, an approximation to POMDPs in which the world is assumed to be fully observable every other time step. The even-odd POMDP can be converted into an equivalent MDP, the
2MDP, whose value function, V*[subscript 2MDP], can be combined online with a 2-step lookahead search...
One dimensional nonlinear difference equations have been used to model population growth. The standard biological models have the interesting characteristic that
they display global stability if they display local stability. Various researchers have sought
a simple explanation for this agreement of local and global stability. Here, we show that
enveloping...
Basic biological information is stored in strings of nucleic acids (DNA, RNA) or amino acids
(proteins). Teasing out the meaning of these strings is a central problem of modern biology. Matching and
aligning strings brings out their shared characteristics. Although string matching is well-understood in the
edit-distance model, biological strings...
The set of codewords for a standard error-correcting code can be viewed
as subset of the vertices of a hypercube. Two vertices are adjacent in a hypercube exactly when their Hamming distance is 1. A code is a perfect-error-correcting code if no two codewords are adjacent and every non-codeword is...
Data structures are more easily understood when
they are presented visually rather than textually. We have
developed a system, Calypso, to allow the visual
definition of data structures programs using pictorial
pattern/action pairs in an imperative setting. We present
several examples including rebalancing an AVL tree and
sorting an array...
We solve a class of identification problems for nonparametric and semiparametric models when the endogenous covariate is discrete with unbounded support. Then we proceed with an approach that resolves a polynomial basis problem for the above class of discrete distributions, and for the distributions given in the sufficient condition for...
The production of high quality grass seed is important to the agricultural economy of the Grande Ronde Valley (GRV) of eastern Oregon. The predominate grass seed crops grown in the area are Kentucky bluegrass and fine fescues. Historically, open-field burning has been an effective, economical means by which to remove...
The motion of floating objects are of importance to engineers and scientists in a
range of applications. For example, in the design of ships and wave energy convertors
and the study of debris mobilized by tsunamis. Measuring the movement of floating
objects in the laboratory can be challenging. Six degrees...
Outdoor schools are located all over the nation. Many students attend these programs to gain science knowledge and experience nature first hand. Outdoor schools are residential programs for students in upper elementary and middle school. Many of the messages are environmental in nature and promote stewardship. The purpose of this...
For the probabilistic model of shuffling by random transpositions we provide a coupling construction
with the expected coupling time of order C*n*log(n), where C is a moderate constant. We enlarge the
methodology of coupling by including intuitive non-Markovian coupling rules. We discuss why a typical
Markovian coupling is not always...
At the request of library administration, an investigation was undertaken to assess the status of the current federal depository program, OSU Libraries' history with the program, advantages and disadvantages of OSU's continued participation supported by evidence of document usage (both circulated and in-house use) in the last 3-5 years, the...
Epidermal RNA samples from FVB/N mice treated with PAH standards and environmental PAH mixtures were harvested and purified using Trizol extraction and RNeasy mini prep kit purification. Epidermal RNA integrity was low (RIN mean 3.5), indicating significant RNA degradation and the need to modify handling, collection, and processing of skin...
The current study investigated the way in which gender of a character and the presence or absence of a male stereotype affect the perceived masculinity of said character. Forty undergraduates from Oregon State University completed a questionnaire rating the masculinity of one of four possible characters – one male without...
Fifty years ago, swine production was a lot different than it is today. Today, swine are being produced in much tighter confinement, which maximizes production and ultimately profit. As more people educate themselves about swine production, there seems to be an increasing level of concern for swine welfare in terms...
The demand for clean renewable energy sources is increasing worldwide and the state of Oregon hopes to establish itself as a leader in ocean wave energy research and development. Seven coastal counties have been selected as potential offshore sites for wave energy parks, and Tillamook County has been identified for...
In an effort to ascertain the library needs of resident graduate students at a marine field station, a mailed survey and a focus group gathered student input. Respondents rated the current collection and services and identified areas needing improvement. A plan of action to improve services has been developed.
As editors of the Marine Science and Technology section for the last three editions of Magazines for Libraries (MFL), we developed lists of journals and annotations to help guide marine sciences acquisitions for all types of libraries. We recommended essential titles at the same time we needed to cancel some...
This study tested natural products from cyanobacteria from the Red Sea in Egypt and marine tunicates from the Algoa Bay in South Africa. Products from marine organisms have been used as lead compounds for the synthesis of new drugs because of their biological activity mechanism. Specifically, these products may contain...
Thomas More’s text, Utopia, introduces the word “utopia” in conjunction with an ideal society, prodding readers to think of “utopia” as synonymous with “ideal.” Indeed, Utopia is structured as an egalitarian and communal place, rendering it highly ideal to those wishing for equality in their own worlds. However, More overturns...
Written for PSY 482.
Throughout the history of psychotherapy, exposure and response (ritual) prevention (ERP) has widely been considered the most effective treatment for patients who suffer from obsessive-compulsive disorder (OCD) (Clark, 2005). Through the utilization of fear hierarchies that aim to desensitize feelings of anxiety and dread, ERP’s empirically...
The processing of facial emotion is important for social situations. Research has shown that the presence of emotionally threat-relevant stimuli (i.e., angry and fearful faces) enhances the processing of subsequent non-emotional stimuli. In these studies, the emotional stimuli were typically presented at the focused attention. Thus, it is not clear...
The Department of Administrative Services (DAS) and Oregon State University (OSU) are collaborating to develop an orthoimagery portal application to allow for the distribution of digital aerial imagery for the State of Oregon. The near-term objective of this project is to develop an Imagery Portal that serves the
2005 half-meter...
Reliable analysis of vector elds is crucial for the rigorous interpretation of the ow data stemming from a wide range of
engineering applications. Morse decomposition of a vector field has proven a useful topological representation that is more numerically stable than previous vector field skeletons. In this paper, we enhance...
Asymmetric tensor fields present new challenges for visualization techniques such as hyperstreamline placement and glyph packing. This is because the physical behaviors of the tensors are fundamentally different inside real domains where eigenvalues are real and complex domains where eigenvalues are complex. We present a hybrid visualization approach in which...
This white paper investigates methods to conduct effective and efficient process development within the context of the NSF funded construction of the Ocean Observatory Facility.
The basis of this process development investigation was the CGSN Sensor Life Cycle project. During the course of this project the sensor life process was...
Previous research has documented that identity priming influences academic performances. Other research has found that emotional priming enhances memory for emotional words. The experiment reported here examined the memory of members of a girls high school tennis team who were primed with student or athlete identities and positive or negative...
Collaborative filtering (CF)-based recommender systems predict what items a user will like or find useful based on the recommendations (active or implicit) of other members of a networked community. In spite of more than ten years of research, there is little consensus on state-of-the-art knowledge regarding CF predictive algorithms. There...