The University of Portland is a private Roman Catholic university located in Portland, Oregon, United States. It is affiliated with the Congregation of Holy Cross, which also founded UP's sister school the University of Notre Dame. Founded in 1901, UP has a student body of about 4,000 students. UP is ranked 8th in the west for Regional Universities by U.S. News and World Report.The campus is located in the University Park neighborhood near St. Johns, on a bluff overlooking the Willamette River. With a college of arts and science; a graduate school; and schools of business, education, engineering, and nursing, it is the only comprehensive Catholic University in Oregon. It is the largest corporation in North Portland and has an annual economic impact on Portland of some $170 million. More than 13,000 alumni live in the Portland metropolitan area. Wikipedia.
Schlosshauer M.,University of Portland |
Fine A.,University of Washington
Physical Review Letters | Year: 2012
Pusey, Barrett, and Rudolph introduce a new no-go theorem for hidden-variables models of quantum theory. We make precise the class of models targeted and construct equivalent models that evade the theorem. The theorem requires assumptions for models of composite systems, which we examine, determining compactness as the weakest assumption needed. On that basis, we demonstrate results of the Bell-Kochen-Specker theorem. Given compactness and the relevant class of models, the theorem can be seen as showing that some measurements on composite systems must have built-in inefficiencies, complicating its testing. © 2012 American Physical Society.
Schlosshauer M.,University of Portland |
Fine A.,University of Washington
Physical Review Letters | Year: 2014
Building on the Pusey-Barrett-Rudolph theorem, we derive a no-go theorem for a vast class of deterministic hidden-variables theories, including those consistent on their targeted domain. The strength of this result throws doubt on seemingly natural assumptions (like the "preparation independence" of the Pusey-Barrett-Rudolph theorem) about how "real states" of subsystems compose for joint systems in nonentangled states. This points to constraints in modeling tensor-product states, similar to constraints demonstrated for more complex states by the Bell and Bell-Kochen-Specker theorems. © 2014 American Physical Society.
Rogers A.T.,University of Portland
Ethnicity and Health | Year: 2010
Objective. This study explored health beliefs and healthcare-seeking behaviors of older USA-dwelling Mexicans and Mexican-Americans using the Theory of Planned Behavior (TPB) as a conceptual guide. Design. A mixed-method cross-sectional design was utilized using semi-structured interviews to obtain detailed descriptions of 31 older (50 + ) participants' behavioral, normative, and control beliefs about health and healthcare utilization. An interview schedule consisting of open-ended and demographic questions and one standardized tool, the Bidimensional Acculturation Scale (BAS) for Hispanics, was used to collect data. Results. Several themes emerged for each belief area. Behavioral belief themes reflect participants' faith in, comfort with, and knowledge of traditional methods of care (e.g., herbs, teas, and use of curanderas) as well as their faith in the effectiveness of conventional care (e.g., medicine, technology, and use of physicians). Normative belief themes indicate that participants perceive that family and community contacts support participants' use of traditional methods and that family supports use of conventional methods. Control belief themes suggest that traditional methods are accessible and affordable but that conventional methods are not. BAS scored indicated that most (90.3%) participants adhered to Hispanic culture. Two (6.5%) participants adhered to non-Hispanic culture and one (3.2%) scored as bi-cultural. Conclusions. Themes from the data suggest that beliefs about healthcare impact the types of care utilized and the ways in which they are utilized. Clinicians and researchers striving to reduce health disparities and develop more culturally competent healthcare services for ethnic minority groups should work toward a better understanding of minority groups' belief systems about healthcare and its utilization. Utilization of the TPB allows for empirical model development that can better predict healthcare utilization behavior, further augmenting efforts to provide services that will help reduce health disparities for older Mexicans and Mexican-Americans and other populations. © 2010 Taylor & Francis.
Feeny D.,University of Portland
Journal of Clinical Epidemiology | Year: 2013
Objectives: The health care system systematically collects data on risk factors, processes of care, and the amount and type of services provided; in short, it mainly measures inputs. The system only sporadically collects data on the health status and health-related quality of life (HRQL) of those served. What does the system actually produce? It produces quality-adjusted survival; yet, there is little systematic effort to collect such outcome-output data. Study Design and Setting: Systematic routine use of HRQL instruments to assess the health of all patients is one step toward filling this void. Results: Assessing the HRQL on all patients provides the information needed to create a report card on the system. Furthermore, the routine use in the context of chronic care management has the potential to improve patient-clinician communication, provider and patient satisfaction, shared decision making, and health outcomes. Conclusion: Over five decades of methodological development have provided a rich array of HRQL instruments. A plethora of technologies facilitate the collection, transmission, and storing of information. What is needed is training to assist patients and providers in the meaning and use of such information and the will to use it to improve performance, accountability, and patient care. Administrative support is also necessary. © 2013 Published by Elsevier Inc.
Kuhn M.R.,University of Portland
International Journal for Numerical Methods in Engineering | Year: 2011
In three-dimensional discrete element method (DEM) simulations, the particle motions within a granular assembly can produce bewildering sequences of movements at the contacts between particle pairs. With frictional contacts, the relationship between contact movement and force is non-linear and path-dependent, requiring an efficient means of computing the forces and storing their histories. By cleverly applying the principles of Cattaneo, Mindlin, and Deresiewicz, J"urgen Jäger developed an efficient approach for computing the full three-dimensional force between identical elastic spheres that have undergone difficult movement sequences (J. Jäger, New Solutions in Contact Mechanics. WIT Press: Southampton, U.K.). This paper presents a complete Jäger algorithm that can be incorporated into DEM codes and also describes three special provisions for DEM simulations: (1) a method for handling particle pairs that undergo complex tumbling and twirling motions in three-dimensions; (2) a compact data structure for storing the loading history of the many contacts in a large assembly; and (3) an approximation of the Jäger algorithm that reduces memory demand. The algorithm addresses contact translations between elastic spheres having identical properties, but it does not resolve the tractions produced by twisting or rolling motions. A performance test demonstrates that the algorithm can be applied in a DEM code with modest increases in computation time but with more substantial increases in required storage. © 2011 John Wiley & Sons, Ltd.