Digital-coded matrix system simplifies design and construction of flow charts

Matrix system utilizing unique digital code enables drawing block diagrams with parallel blocks. Complete freedom is obtained in laying out diagram, and it is possible to go directly from matrix to finished drawing. Need to rough out diagram is eliminated and time involved is greatly reduced

Intergenerational equity and conservation

The issue of integenerational equity in the use of natural resources is discussed in the context of coal mining conversion. An attempt to determine if there is a clear-cut benefit to future generations in setting minimum coal extraction efficiency standards in mining is made. It is demonstrated that preserving fossil fuels beyond the economically efficient level is not necessarily beneficial to future generations even in terms of their own preferences. Setting fossil fuel conservation targets for intermediate products (i.e. energy) may increase the quantities of fossil fuels available to future generations and hence lower the costs, but there may be serious disadvantages to future generations as well. The use of relatively inexpensive fossil fuels in this generation may result in more infrastructure development and more knowledge production available to future generations. The value of fossil fuels versus these other endowments in the future depends on many factors which cannot possibly be evaluated at present. Since there is no idea of whether future generations are being helped or harmed, it is recommended that integenerational equity not be used as a factor in setting coal mine extraction efficiency standards, or in establishing requirements

California methanol assessment. Volume 1: Summary report

The near term methanol industry, the competitive environment, long term methanol market, the transition period, air quality impacts of methanol, roles of the public and private sectors are considered

Long discontinuous fiber composite structure: Forming and structural mechanics

Cost effective composite structure has motivated the investigation of several new approaches to develop composite structure from innovative material forms. Among the promising new approaches is the conversion of planar sheet to components of complex curvature through sheet forming or stretch forming. In both cases, the potential for material stretch in the fiber direction appears to offer a clear advantage in formability over continuous fiber systems. In the present study, the authors have established a framework which allows the simulation of the anisotropic mechanisms of deformation of long discontinuous fiber laminates wherein the matrix phase is a viscous fluid. The initial study focuses upon the establishment of micromechanics models for prediction of the effective anisotropic viscosities of the oriented fiber assembly in a viscous matrix. Next, the developed constitutive relation is employed through an analogy with incompressible elasticity to exercise the finite element technique for determination of local fiber orientation and laminate thickness after forming. Results are presented for the stretch bending of a curved beam from an arbitrary composite laminate and the bulging of a clamped sheet. Structural analyses are conducted to determine the effect of microstructure on the performance of curved beams manufactured from long discontinuous fiber composites. For the purposes of this study, several curved beams with ideal and non-ideal microstructures are compared for response under pure bending. Material parameters are determined from a separate microstructural analysis

Novel approaches to the construction of miniaturized analytical instrumentation

This paper focuses on the design, construction, preliminary testing, and potential applications of three forms of miniaturized analytical instrumentation. The first is an optical fiber instrument for monitoring pH and other cations in aqueous solutions. The instrument couples chemically selective indicators that were immobilized at porous polymeric films with a hardware package that provides the excitation light source, required optical components, and detection and data processing hardware. The second is a new form of a piezoelectric mass sensor. The sensor was fabricated by the deposition of a thin (5.5 micron) film of piezoelectric aluminum nitride (AIN). The completed deposition process yields a thin film resonator (TFR) that is shaped as a 400 micron square and supports a standing bulk acoustic wave in a longitudinal mode at frequencies of approx. 1 GHz. Various deposition and vapor sorption studies indicate that the mass sensitivity of the TFR's rival those of the most sensitive mass sensors currently available, though offering such performance in a markedly smaller device. The third couples a novel form of liquid chromatography with microlithographic miniaturization techniques. The status of the miniaturization effort, the goal of which is to achieve chip-scale separations, is briefly discussed

Relationship Between Childhood Trauma, ,Adverse Childhood Experiences, and Self-Management of Type 1 and Type 2 Diabetes

AbstractPoorly controlled diabetes is the result of lack of self-care, which contributes to complications, ill quality in life, the rise in health care costs, and early death. The purpose of this quantitative, nonexperimental study was to examine the extent to which diabetes type (Type 1 and Type 2), childhood trauma, and adverse childhood experiences predict diabetes self-management (glucose management, dietary control, physical activity, health care use, total self-management). Contemporary trauma theory suggests that early childhood trauma results in negative health-related consequences in adulthood. Standard multiple regression analyses showed that (a) higher levels of physical neglect and emotional abuse predicted poorer overall self-management, (b) higher levels of physical neglect predicted poorer glucose management, (c) diabetes type predicted health care use with Type 2 diabetics using healthcare more frequently than Type 1, (d) higher levels of physical neglect predicted lower levels of healthcare use, and (e) higher levels of emotional abuse predicted lower levels of physical activity. These results may be used for positive social change by informing health care providers on factors that impact diabetes self-management. Health care practitioners and organizations may use the results to design educational programs or counseling interventions with diabetes patients to improve diabetes self-management behavior

Key competencies, skills, and attributes required of leaders in the residential aged care services

"Leadership is one of the most observed and least understood phenomena on earth." Burns (1978 p.2) "We need to recognise and plan for this increased need for health service provision. This is an urgent and critical challenge for Australia: if we don't provide properly for aged care, we will have a human rights disaster on our hands." Susan Ryan, Age Discrimination Commissioner (2014) This thesis focuses on the skills and attributes required by Chief Executive Officers (CEOs) and senior staff as leaders and managers in the residential aged care services (RACS) sector. It makes a significant contribution to this field of inquiry by utilising original research to examine the capabilities needed to meet the challenges faced within this industry sector. The sector is beset by many complexities that are characterised by four main issues. Firstly, the need for effective leadership is essential. Prominent theorists claim that a paucity of research has been conducted regarding leadership in RACS. The second issue relates to demographic complications related to Australia's ageing population and workforce and the increasing demand for quality services and staff within budgetary and other constraints. The third issue involves the intricacies of government policies that are an added obstacle. Fourthly, RACS are affected by major complications regarding human resource management (HRM) issues, including poor working conditions and complexities recruitment, attraction and retention. This study employs a qualitative research methodology, underpinned by constructivism and thematic analysis. In-depth interviews with eighteen CEOs and senior managers within the RACS explored the nature of leadership within the sector, identified key leadership capabilities and investigated the potential HRM strategies that could be developed to address the sector's needs. Based on the research, this thesis provides a detailed understanding of what skills and competencies are required of leaders to be successful in RACS and what the major constraints and factors that impact on their ability to utilise these attributes effectively.  The thesis argues that there is an urgent need for Australia to develop a rigorously evaluated and strategically integrated national policy approach to the aged care health workforce.  Strategies are needed to enhance working conditions, improve leadership and facilitate workforce innovation. A key component of these strategies is the need for qualified, skilled and dedicated leaders within the RACS who exhibit and implement the complex skills, competencies and attributes found by this research to be essential to successful aged care leadership

Establishing the relationship between manufacturing and component performance in stretch formed thermoplastic composites

Flexible manufacturing methods are needed to reduce the cost of using advanced composites in structural applications. One method that allows for this is the stretch forming of long discontinuous fiber materials with thermoplastic matrices. In order to exploit this flexibility in an economical way, a thorough understanding of the relationship between manufacturing and component performance must be developed. This paper reviews some of the recent work geared toward establishing this understanding. Micromechanics models have been developed to predict the formability of the material during processing. The latest improvement of these models includes the viscoelastic nature of the matrix and comparison with experimental data. A finite element scheme is described which can be used to model the forming process. This model uses equivalent anisotropic viscosities from the micromechanics models and predicts the microstructure in the formed part. In addition, structural models have been built to account for the material property gradients that can result from the manufacturing procedures. Recent developments in this area include the analysis of stress concentrations and a failure model each accounting for the heterogeneous material fields

Treat-and-Extend Versus Pro re nata Regimens of Ranibizumab and Aflibercept in Neovascular Age-Related Macular Degeneration: A Comparative Study from Routine Clinical Practice

INTRODUCTION: Anti-vascular endothelial growth factor (VEGF) is generally given using pro re nata or "treat-and-extend" (T&E) regimens for neovascular age-related macular degeneration (nAMD). Randomized clinical trials have reported that T&E is superior to Pro re nata (PRN), but results from clinical trials may not always be replicated in clinical practice. Real-world data comparing T&E and PRN regimens for nAMD are limited. The objective of this work was to report 24-month outcomes of PRN versus T&E regimens for ranibizumab and aflibercept to treat nAMD in routine clinical practice. METHODS: We conducted a retrospective analysis of data from a prospectively designed observational outcomes registry, the Fight Retinal Blindness! Project (FRB). Treatment-naïve eyes starting nAMD treatment with at least three injections using a T&E or PRN regimen were tracked by using the FRB. The primary outcome was the mean change in visual acuity (VA) measured by the number of letters read on a logarithm of the minimum angle of resolution chart at 2 years versus baseline. The secondary outcome was the number of injections at 2 years. RESULTS: From January 1, 2015 to January 31, 2019, 3313 eyes from 2948 patients with nAMD were included: 1243 eyes from 1065 patients were classified as PRN and 2070 eyes from 1935 patients started a T&E regimen. At 24 months, patients on the T&E regimen experienced significantly greater mean (95% confidence interval) improvement in VA than those on PRN (+ 4.2 [3.1, 5.2] vs. + 1.3 [0.1, 2.6] letters; p < 0.001), with more injections (14.9 standard deviation(SD) 4.3) vs. 9.8(SD 4.3); p < 0.001). CONCLUSIONS: Eyes treated with a T&E regimen had better VA outcomes from VEGF inhibitors than eyes treated PRN. This large real-world data assessment supports previous data from randomized clinical trials that the T&E regimen delivers better outcomes than PRN