Improving Women’s Health Services by Adding Long-Acting Reversible Contraceptive Methods into Primary Care-Focused Student Health

Often resulting from inconsistent contraceptive use, unintended pregnancy among young women between ages 18-24 continues to be an issue in the United States. Long-acting reversible contraceptives, including intrauterine contraceptives and the subdermal contraceptive implant, are safe, effective, long-acting, easily reversible, and non-user dependent contraceptive methods, yet currently are greatly underutilized. Most of the contraceptive methods are provided at our student health services except for the highly effective long-acting reversible contraceptive methods. As family nurse practitioners and health care providers, it is essential to integrate this service into primary care-focused college student health clinics by providing evidence-based information to clinical providers and clients to address the misconceptions regarding long-acting reversible contraceptive methods use. The purpose of this project is to propose the addition of the highly effective long-acting reversible contraceptive methods to improve health care services at the Student Health and Counseling Services of California State University East Bay

An iterative implicit diagonally-dominant factorization algorithm for solving the Navier-Stokes equations

Presented here is an algorithm for solving the multidimensional unsteady Navier-Stokes equations for compressible flows. It is based on a diagonally-dominant approximate factorization procedure. The factorization error and the timewise linearization error associated with this procedure are reduced by performing Newton-type inner iterations at each time step. The inviscid fluxes are evaluated by the fourth-order central differencing scheme amended with a numerical dissipation directly proportional to the entire dissipative part of the truncation error intrinsic to the third order biased upwind scheme. The important features of the proposed solution are elucidated by the numerical results of the convection of a vortex and the backward-facing step flows

Preliminary Axial Flow Turbine Design and Off-Design Performance Analysis Methods for Rotary Wing Aircraft Engines

For the preliminary design and the off-design performance analysis of axial flow turbines, a pair of intermediate level-of-fidelity computer codes, TD2-2 (design; reference 1) and AXOD (off-design; reference 2), are being evaluated for use in turbine design and performance prediction of the modern high performance aircraft engines. TD2-2 employs a streamline curvature method for design, while AXOD approaches the flow analysis with an equal radius-height domain decomposition strategy. Both methods resolve only the flows in the annulus region while modeling the impact introduced by the blade rows. The mathematical formulations and derivations involved in both methods are documented in references 3, 4 for TD2-2) and in reference 5 (for AXOD). The focus of this paper is to discuss the fundamental issues of applicability and compatibility of the two codes as a pair of companion pieces, to perform preliminary design and off-design analysis for modern aircraft engine turbines. Two validation cases for the design and the off-design prediction using TD2-2 and AXOD conducted on two existing high efficiency turbines, developed and tested in the NASA/GE Energy Efficient Engine (GE-E3) Program, the High Pressure Turbine (HPT; two stages, air cooled) and the Low Pressure Turbine (LPT; five stages, un-cooled), are provided in support of the analysis and discussion presented in this paper