Objective: The objective of this study was to assess the reliability and validity of an objective structured assessment of technical skills (OSATS) for repair of fourth-degree obstetric lacerations on a surgical model. Study Design: Three blinded judges reviewed recordings of 20 junior and 20 senior obstetrics-gynecology residents performing simulated perineal repairs using a beef tongue model. Judges completed task-specific OSATS and global rating scales for each repair. Six recordings were rereviewed after 2 weeks. Inter- and intrarater reliability and construct validity were assessed. Results: Interrater reliability was 0.80 for task-specific OSATS and 0.59 for the global rating scale. Intrarater reliability was poor. Construct validity was demonstrated, with senior residents scoring higher than junior residents on task-specific OSATS (13.0 vs 10.5; P = .007) and the global rating scale (24.0 vs 19.3; P = .001). Conclusion: We found good interrater reliability and construct validity using a task-specific OSATS for fourth-degree perineal laceration repair. This instrument shows promise as a tool for competency-based evaluations.
A common goal of quantum control is to maximize a physical observable through
the application of a tailored field. The observable value as a function of the
field constitutes a quantum control landscape. Previous works have shown, under
specified conditions, that the quantum control landscape shoul...
An optimal frame transmission scheme is presented for streaming scalable
video over a link with limited capacity. The objective is to select a
transmission sequence of frames and their transmission schedule such that the
overall video quality is maximized. The problem is solved for two general
Studied the spectral and flux variability of IC 310 from the X-ray band to the
VHE regime. Methods. The daily light curve of IC 310 above 300 GeV has been
Measured with MAGIC from 2009 October to 2010 February. Contemporaneous
Fermi-LAT data (2008-2011) in the 10-500 GeV energy range were also an...
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