FUSE: People with Frequent Utilization of Public Services in Clackamas County, Oregon: Potential Service Enhancements

The goal of this study was to answer five very specific questions about individuals with high service utilization and the systems that serve them. The data for this study comes from administrative system data, informational conversations and meetings with community partners, formal interviews with service providers, and interviews with consumers with frequent service utilization. Limitations: The rates of mental illness, addiction and homelessness are likely to be higher than they appear in this report due to the way these characteristics were gathered or recorded in system databases. Historically marginalized populations are increasingly underrepresented in datasets

Axisymmetric Waves in Layered Anisotropic Fibers and Composites

The complicated morphology of the new generation of advanced fibrous composites gave further impetus to the study of the interaction of ultrasonic waves with multilayered concentric cylindrical systems. Typically, the fiber consists of a cylindrical core embedded in a cladding region followed by a distinct interface zone separating the fiber system from the host (matrix) region. In addition, the cladding region itself often consists of subregions which can be identified as distinct layers. Each individual layer can posses certain degree of microscopic anisotropy adding to the macroscopic anisotropy produced by the presence of layering and imperfect interfaces. Relatively few efforts have been spent upon the study of free and immersed homogeneous anisotropic rods [1–5]. These works are insufficient to model real situations encountered in materials characterization of advanced fibrous composites. In order to better model advanced fibrous composites at least three major effects need to be accounted for. These are the inhomogeneous nature of the structure as reflected in its multilayering, the inherent microscopic anisotropy of some of the constituents and finally the quality of the interfaces. In this paper we briefly describe a unified analytical treatment of wave propagation along the fiber direction of multilayered coaxial fibrous systems embedded in a host material. A more detailed discussion of this general treatment will be presented elsewhere [6]. Figure 1 shows typical geometric situations including (a) a single multilayered fiber, (b) a single multilayered fiber either immersed in an infinite fluid or embedded in an infinite solid, and an infinite composite material with periodically distributed multilayered fiber

Basic life support: evaluation of learning using simulation and immediate feedback devices

ABSTRACT Objective: to evaluate students’ learning in an online course on basic life support with immediate feedback devices, during a simulation of care during cardiorespiratory arrest. Method: a quasi-experimental study, using a before-and-after design. An online course on basic life support was developed and administered to participants, as an educational intervention. Theoretical learning was evaluated by means of a pre- and post-test and, to verify the practice, simulation with immediate feedback devices was used. Results: there were 62 participants, 87% female, 90% in the first and second year of college, with a mean age of 21.47 (standard deviation 2.39). With a 95% confidence level, the mean scores in the pre-test were 6.4 (standard deviation 1.61), and 9.3 in the post-test (standard deviation 0.82, p <0.001); in practice, 9.1 (standard deviation 0.95) with performance equivalent to basic cardiopulmonary resuscitation, according to the feedback device; 43.7 (standard deviation 26.86) mean duration of the compression cycle by second of 20.5 (standard deviation 9.47); number of compressions 167.2 (standard deviation 57.06); depth of compressions of 48.1 millimeter (standard deviation 10.49); volume of ventilation 742.7 (standard deviation 301.12); flow fraction percentage of 40.3 (standard deviation 10.03). Conclusion: the online course contributed to learning of basic life support. In view of the need for technological innovations in teaching and systematization of cardiopulmonary resuscitation, simulation and feedback devices are resources that favor learning and performance awareness in performing the maneuvers

Main principles of developing exploitation models of semiconductor devices

The paper represents primary tasks, solutions of which allow to develop the exploitation modes of semiconductor devices taking into account complex and combined influence of ionizing irradiation and operation factors. The structure of the exploitation model of the semiconductor device is presented, which is based on radiation and reliability models. Furthermore, it was shown that the exploitation model should take into account complex and combine influence of various ionizing irradiation types and operation factors. The algorithm of developing the exploitation model of the semiconductor devices is proposed. The possibility of creating the radiation model of Schottky barrier diode, Schottky field-effect transistor and Gunn diode is shown based on the available experimental data. The basic exploitation model of IRLEDs based upon double AlGaAs heterostructures is represented. The practical application of the exploitation models will allow to output the electronic products with guaranteed operational properties

An examination of selection bias in the Florida College Level Academic Skills Test

The purpose of this study was to examine the extent to which selection bias is present in the use of the Florida College Level Academic Skills Test (CLAST), given three different perspectives and three sets of passing standards. Although the CLAST is not designed to be a predictor of future performance, students in the state of Florida are required to pass all four CLAST subtests in order to receive an Associate in Arts degree or to be admitted into upperclass standing. Analyses were based on separate regressions of first term state university system GPA on CLAST subtest scores. The sample consisted of 6330 students who enrolled in or graduated from Miami-Dade Community College between 1980 and 1984. White Non-Hispanics accounted for 32.58% of the students, while 7.95% were Black Non-Hispanic, 57.69% were Hispanic, and 1.79% were Foreign Nationals.Cleary's regression model revealed selection bias (unequal intercepts) in all analyses but one. Use of the overall regression equations overpredicted Black Non-Hispanic GPA by 0.20-0.47 points, underpredicted White Non-Hispanic GPA by 0.03-0.07 points, and underpredicted Hispanic GPA by 0.01-0.07 points. Prediction was improved by the inclusion of lowerclass GPA in the regression equation. Thorndike's constant ratio model showed that the proportion of students successful on the exam to the proportion with successful upperclass performance was not equal across ethnic groups. Bias was indicated in favor of Black Non-Hispanics at the 1984 and 1986 standards, and against this group at the 1989 standards. Bias was indicated against Hispanics on the reading and essay subtests given 1984 and 1986 standards, and on all four subtests given 1989 standards. Einhorn and Bass's equal risk model showed significantly fewer (10 to 14 percent) White Non-Hispanics than Black Non-Hispanics predicted to have unsuccessful upperclass performance given performance at all cutscores on all subtests. Similarly, significantly fewer (2-4 percent) White Non-Hispanics than Hispanics were predicted to have unsuccessful upperclass performance given performance at the cutscore on the computation, writing, and essay subtests at 1984 and 1986 standards, and on the writing and essay subtests at the 1989 standards.</p