Somatization as a Coping Style in Families

This study addresses two questions relating to somatic family interaction. The first question is: What is the prevalence of somatic family interaction in a non-clinical sample? The sample consisted of 500 volunteer families obtained by sequential door to door solicitation in Newberg, Oregon, 25 miles southwest of Portland, Oregon. There was a 32% response rate within this area (n = 161) consisting of Caucasian, Hispanic (5%), and oriental families (2%). There was a full range of economic, educational levels and family sizes. The prevalence rate of somatic family interaction was found to be consistent with other research at approximately 21

Risk analysis of Cordova's microgrid from a complex systems viewpoint

Thesis (M.S.) University of Alaska Fairbanks, 2019Cordova is a town of approximately 2,000 people located on the southern coast of Alaska. A power grid for a town this size, with a large seasonal fishing economy, is considered a moderate to large sized microgrid in terms of power produced. Understanding the vulnerabilities and risks of failures in such a grid is important for planning and operations and investigating these characteristics in the context of complex system dynamics is novel. The analysis of Cordova's microgrid is a case study relevant to a large class of microgrid communities that could benefit from this work. Our analysis of this grid began by looking at the distribution of all outages from 2003 - 2017 by size, followed by splitting up outages based on certain characteristics and again looking at outage size distribution based on different characteristics. Following this we correlated the outages with different weather patterns and then with the hourly load demand on the system. After doing these analyses we developed a risk metric to give a single numerical value to the risk of an outage occurring during certain time periods and under certain conditions. We looked at risk in the summer versus the winter due to the summer having a much larger load demand, and we also looked at the risk before and after all cables in the grid were buried underground. This gives us an idea of when/under what circumstances the most outages are likely to occur and allows us to run our model of the system, make changes, and determine if those changes were beneficial to the system or not.RADIANCE gran

Treating Central Catheter–Associated Bacteremia Due to Methicillin-Resistant Staphylococcus aureus: Beyond Vancomycin

Methicillin-resistant Staphylococcus aureus is a frequent cause of hospital-associated infections, including central catheter-associated bacteremia. Vancomycin has been the drug of choice for treating this type of bacteremia for decades in patients who have no contraindications to the antibiotic. However, resistance to vancomycin is an emerging problem. Newer antibiotics approved by the Food and Drug Administration have activity against methicillin-resistant S aureus Some of the antibiotics also have activity against strains of S aureus that are intermediately susceptible or resistant to vancomycin. This article uses a case study to highlight the clinical signs of vancomycin failure and describes the indications for and appropriate use of alternative antimicrobials such as ceftaroline, daptomycin, linezolid, tigecycline, and telavancin. (Critical Care Nurse 2016;36[4]:46-57)

Characteristics and Risk of Microgrid Outages from a Complex Systems Point of View

Cordova is a town of approximately 2,000 people located on the southern coast of Alaska. A power grid for a town this size, with a large seasonal fishing economy, is considered a moderate to large sized microgrid in terms of power produced. Understanding the vulnerabilities and risks of failures in such a grid is important for planning and operations. Investigating these characteristics in the context of complex system dynamics is a novel approach. The analysis of Cordova’s microgrid is a case study relevant to a large class of microgrid communities. We analyze the outage data based on size, cause characteristics and load demand on the system and find long time correlations and power laws in the failure size distributions. Finally we apply a risk metric to give a single numerical value to the risk of an outage occurring during certain time periods and under certain conditions

Tensile Creep and Creep-Recovery Behavior of a SiC-Fiber Si 3 N 4 -Matrix Composite

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/65802/1/j.1151-2916.1993.tb03753.x.pd

Influence of Heat Treatment on Defect Structures in Single-Crystalline Blade Roots Studied by X-ray Topography and Positron Annihilation Lifetime Spectroscopy

Single-crystalline superalloy CMSX-4 is studied in the as-cast state and after heat treatment, with material being taken from turbine blade castings. The effect of the heat treatment on the defect structure of the root area near the selector/root connection is emphasized. Multiscale analysis is performed to correlate results obtained by X-ray topography and positron annihilation lifetime spectroscopy (PALS). Electron microscopy observations were also carried out to characterize the inhomogeneity in dendritic structure. The X-ray topography was used to compare defects of the misorientation nature, occurring in as-cast and treated states. The type and concentration of defects before and after heat treatment in different root areas were determined using the PALS method, which enables voids, mono-vacancies, and dislocations to be taken into account. In this way, differences in the concentration of defects caused by heat treatment are rationalized

Matrix Cracking of Ceramic-Matrix Composites

In this chapter, the matrix cracking of fiber-reinforced ceramic-matrix composites (CMCs) is investigated using the energy balance approach. The relationship between the matrix cracking stress, fiber and interface oxidation, and fiber failure is established. The effects of the fiber volume, interface shear stress and interface debonding energy, fiber failure, and oxidation temperature on the time-dependent matrix cracking stress are analyzed. The experimental matrix cracking stress of different fiber-reinforced CMCs is predicted using the present models

The Effect of Red Bull Energy Drink on Attenuating Muscular Fatigue Following Heavy Exercise

Red Bull® (RB) is marketed to help people sustain muscular performance. Most research has been confined to exploring the effects of caffeine and not some of the other active ingredients (e.g., taurine). Purpose: This study investigated the degree to which muscular power was maintained following heavy exercise in which subjects consumed either RB or Control (CTRL) drink containing the same concentration of caffeine. Methods: The study was a double-blind, randomized, crossover design. Eight recreationally-trained cyclists completed a graded exercise test to determine power evoking the gas exchange threshold (GET). For each bout, subjects pedaled on an electronically-braked cycle ergometer at an intensity equivalent to the power evoking the GET for 20-min. Digital video was captured for 3 vertical jumps prior to and following the cycling bouts. Knee joint angle was digitized for each frame to obtain joint velocity. The total hip joint displacement and gravitational force on the body was used to derive linear power. These data will be evaluated statistically and the results will be presented