Monetary policy and velocity

Velocity of money ; Demand for money ; Monetary policy - United States

Assessing Hospital Employee's Readiness for Change for a Workplace Wellness Program

The aims of this study were to measure attitudes of hospital employees towards health and healthy behaviors and provide exploratory research that will guide stakeholders in strategically planning a worksite wellness (WW) program at a Catholic hospital. Methods used included a cross-sectional study with census data from a population of employees in a hospital utilizing Prochaska’s Stages of Change to assess their readiness. Participants (N=705) were also asked to identify 1) meaningful WW incentives, 2) job stressors encountered and 3) if spirituality/religiosity played a role in their health. Using frequency and Chi-square distributions, this census survey revealed a readiness to engage in exercise, weight control and stress management. A higher engagement in positive health behaviors was seen in those who reported spirituality/religiosity, especially when involved in a spiritual/religious community. Major themes suggested that this hospital would benefit from WW incentives that target exercise, weight control and stress management and that allow employees to pursue these health goals in supportive relationships with each other. A unique holistic approach to worksite wellness, incorporating “body”, “mind”, and “spirit” is discussed and ultimately guided the interpretation and application of the survey data

Performance of alkaline battery cells used in emergency locator transmitters

The characteristics of battery power supplies for emergency locator transmitters (ELT's) were investigated by testing alkaline zinc/manganese dioxide cells of the type typically used in ELT's. Cells from four manufacturers were tested. The cells were subjected to simulated environmental and load conditions representative of those required for survival and operation. Battery cell characteristics that may contribute to ELT malfunctions and limitations were evaluated. Experimental results from the battery cell study are discussed, and an evaluation of ELT performance while operating under a representative worst-case environmental condition is presented

Scaling of the Transient Hydroelastic Response and Failure Mechanisms of Self-Adaptive Composite Marine Propellers

The load dependent deformation responses and complex failure mechanisms of self-adaptive composite propeller blades make the design, analysis, and scaling of these structures nontrivial. The objective of this work is to investigate and verify the dynamic similarity relationships for the hydroelastic response and potential failure mechanisms of self-adaptive composite marine propellers. A fully coupled, three-dimensional boundary element method-finite element method is used to compare the model and full-scale responses of a self-adaptive composite propeller. The effects of spatially varying inflow, transient sheet cavitation, and load-dependent blade deformation are considered. Three types of scaling are discussed: Reynolds scale, Froude scale, and Mach scale. The results show that Mach scaling, which requires the model inflow speed to be the same as the full scale, will lead to discrepancies in the spatial load distributions at low speeds due to differences in Froude number, but the differences between model and full-scale results become negligible at high speeds. Thus, Mach scaling is recommended for a composite marine propeller because it allows the same material and layering scheme to be used between the model and the full scale, leading to similar 3D stress distributions, and hence similar failure mechanisms, between the model and the full scale

Long Duration Exposure Facility (LDEF) attitude measurements of the Interplanetary Dust Experiment

Analysis of the data from the Long Duration Exposure Facility (LDEF) Interplanetary Dust Experiment (IDE) sun sensors has allowed a confirmation of the attitude of LDEF during its first year in orbit. Eight observations of the yaw angle at specific times were made and are tabulated in this paper. These values range from 4.3 to 12.4 deg with maximum uncertainty of plus or minus 2.0 deg and an average of 7.9 deg. No specific measurements of pitch or roll were made but the data indicates that LDEF had an average pitch down attitude of less than 0.7 deg