Unsteady pressure measurements on a biconvex airfoil in a transonic oscillating cascade

Flush-mounted dynamic pressure transducers were installed on the center airfoil of a transonic oscillating cascade to measure the unsteady aerodynamic response as nine airfroils were simultaneously driven to provide 1.2 deg of pitching motion about the midchord. Initial tests were performed at an incidence and angle of 0 deg and A Mach number of 0.65 in order to obtain results in a shock-free compressible flowfield. Subsequent tests were performed at an incidence angle of 7 deg and Mach number of 0.8 in order to observe the surface pressures with an oscillating shock near the leading edge of the airfoil. Results are presented for interblade phase angles of 90 and -90 deg and at blade oscillatory frequencies of 200 and 500 Hz (semi-chord reduced frequencies up to about 0.5 at a Mach number of 0.8). Results from the zero-incidence cascade are compared with a classical unsteady flat-plate analysis. Flow visualization results depicting the shock motion on the airfoils in the high-incidence cascade are discussed. The airfoil pressure data are tabulated

Behavioral Management of Auditory Hallucinations: Implementation and Evaluation of a 10-Week Course

A 10-session behavioral course for self-management of auditory hallucinations in patients with schizophrenia has demonstrated positive outcomes. This article evaluates both the course’s implementation and benefits to patients attending the course. Teleconferencing, electronic media, and 26 monthly conference calls were used to educate six advanced practice nurses (APNs) at six sites about the course implementation. Thirty-two patients within the U.S. Department of Veterans Affairs participated in the course. All of the APNs reported course helpfulness, improved communication with patients about voices, and improved harm assessment. Of the patients, 96% found the course helpful: 67% no longer heard voices to harm self or others, and 60% had improved auditory hallucination intensity scores. The project demonstrated successful implementation and practice integration with APNs’ activities corresponding to Rogers’ stages of innovation adoption. Facilitators and barriers to implementation are also described

Disseminating an Evidence-Based Course to Teach Self-Management of Auditory Hallucinations

This multi-site project extended course dissemination of the 10-session Behavioral Management of Auditory Hallucinations Course to U.S. Department of Veterans Affairs (VA) mental health outpatient settings. The VA Quality Enhancement Research Initiative (QUERI) model and Rogers\u27 theory of diffusion of innovations served as the theoretical framework. The course was taught to mental health professionals using teleconferencing, electronic media, and monthly conference calls across 24 VA mental health outpatient sites. Twenty course leaders provided feedback. One hundred percent reported being better able to communicate with patients about their voices and 96% reported improved understanding of the voice-hearing experience. Thirty-three course participants provided feedback. Ninety-four percent would recommend the course, 85% reported being better able to communicate with staff about their voices, and 66% reported being better able to manage their voices. Facilitators and barriers to course implementation are described