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We present the results of two 2.3 μm near-infrared (NIR) radial velocity (RV) surveys to detect exoplanets around 36 nearby and young M dwarfs. We use the CSHELL spectrograph (R ~ 46,000) at the NASA InfraRed Telescope Facility (IRTF), combined with an isotopic methane absorption gas cell for common optical path relative wavelength calibration. We have developed a sophisticated RV forward modeling code that accounts for fringing and other instrumental artifacts present in the spectra. With a spectral grasp of only 5 nm, we are able to reach long-term radial velocity dispersions of ~20–30 m s−1 on our survey targets.

Aims and method

To audit the quality of medical recommendations for detention under the Mental Health Act 1983, Section 2 and 3. The recommendations were tested against a gold standard based on the statutory criteria. Two cycles were completed, the first containing 214 recommendations, the second 202. Relevant education took place after the first cycle.

Results

The percentage of medical recommendations containing clear statements of why each of the statutory criteria was met increased in the second cycle. It reached 87% for mental disorder; 87% for nature and/or degree; 75% for why community treatment was not possible; 64% for why detention was in the interests of health; 60% for safety; 55% for protection of others; and 70% why informal admission was not possible.

Clinical implications

Doctors, scrutineers and approved mental health practitioners welcomed clear guidance about what is expected in a medical recommendation for detention and endorsed the gold standard described. Armed with a better understanding of what is expected and a template to follow, there was an improvement in the reasons given for detention.

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Precise Near-Infrared Radial Velocities

Compulsion under the Mental Health Act 1983: audit of the quality of medical recommendations

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Precise Near-Infrared Radial Velocities

Compulsion under the Mental Health Act 1983: audit of the quality of medical recommendations