Educación premédica en Estados Unidos.

Al hacerse más complejos e intensivos los estudios de Medicina, se ha convertido en obligatorio que los alumnos que van a estudiar esta carrera tengan un conocimiento básico de las ciencias naturales y física y una comprensión del método científico. Actualmente, todas las facultades de medicina y escuelas de ciencias médicas básicas de este país y del Canadá exigen, como mínimo, tres años de estudios premédicos. En años recientes la atención delos educadores médicos se ha dirigido más a mejorar la calidad que a aumentar la duración de la educación premédica. Una vez que el estudiante ha entrado en la facultad, y durante muchos años después de su Licenciatura, su tiempo y sus energías son ocupadas continuamente por los estudios y actividades profesionales. Y es muy poco probable que esta situación cambie. Por todo ello, si un médico ha de conocer historia, literatura, filosofía, ciencia política, economía y sociología, la base de estas materias debe ser adquirido durante los años de educación premédica. Los educadores médicos están convencidos de que este proceder es el adecuado.

Solution of two-body bound state problems with confining potentials

The homogeneous Lippmann-Schwinger integral equation is solved in momentum space by using confining potentials. Since the confining potentials are unbounded at large distances, they lead to a singularity at small momentum. In order to remove the singularity of the kernel of the integral equation, a regularized form of the potentials is used. As an application of the method, the mass spectra of heavy quarkonia, mesons consisting from heavy quark and antiquark (Υ(bb̄), ψ(cc̄)), are calculated for linear and quadratic confining potentials. The results are in good agreement with configuration space and experimental results. © 2010 American Institute of Physics.

Protective Eyewear Promotion: Applying Principles of Behaviour Change in the Design of a Squash Injury Prevention Programme

Eye injuries in squash have the potential to be severe. Although these injuries can be prevented through the use of protective eyewear, few players wear such eyewear. The aim of this paper is, to outline the behavioural principles guiding the design of a squash eyewear promotion initiative, the Protective Eyewear Promotion (PEP). Ecological principles of behaviour change were used to provide a comprehensive perspective on intrapersonal factors, policies and physical environmental influences of protective eyewear use. Results of baseline player surveys and venue manager inter-views were used to provide relevant and specific intervention content. At baseline, protective eyewear was not found to be readily available, and players' behaviours, knowledge and attitudes did not favour its use. The main components of PEP involved informing and educating both players and squash venue operators of the risk of eye injury and of appropriate protective eyewear, as well as assisting with the availability of the eyewear and offering incentives for players to use it. A structural strength of PEP was the strong collaborative links with the researchers of different disciplines, the squash governing body, eyewear manufacturers, squash venue personnel, as well as players. Attempts were made within the project structure to make provision for the future dissemination and sustainability of more widespread eye injury prevention measures in the sport of squash.