[Medical education and well-being: orientations towards the implementation of a positive teaching].

The transition to and through college can affect the mental health of college students. The situation in medical students is particularly worrisome, considering that they have high rates of psychopathology. These mental health problems can be associated with worse academic and professional outcomes and worse patient care.

A precise measurement of the magnetic field in the corona of the black hole binary V404 Cygni.

Observations of binary stars containing an accreting black hole or neutron star often show x-ray emission extending to high energies (>10 kilo--electron volts), which is ascribed to an accretion disk corona of energetic particles akin to those seen in the solar corona. Despite their ubiquity, the physical conditions in accretion disk coronae remain poorly constrained. Using simultaneous infrared, optical, x-ray, and radio observations of the Galactic black hole system V404 Cygni, showing a rapid synchrotron cooling event in its 2015 outburst, we present a precise 461 ± 12 gauss magnetic field measurement in the corona.