La historia y epistemologia de las ciencias en los textos universitarios

Concebir la historia de las ciencias como marco conceptual de referencia para analizar, reflexionar e informar la enseñanza, aprendizaje, evaluación y organización curricular de las ciencias en la formación educativa científica inicial de los maestros permite investigar el problema de diseñar, desarrollar, evaluar y escribir textos universitarios basados en la historia y epistemología de la termodinámica, concibiendo la misma como marco de referencia conceptual para integrar sus correspondientes modelos pedagógicos a través de los conceptos de calor, temperatura y trabajo

Relativistic free-particle quantization on the light-front: New aspects

We use the light-front machinery to study the behavior of a relativistic free particle and obtain the quantum commutation relations from the classical Poisson brackets. We argue that the usual projection onto the light-front coordinates for these from the covariant commutation ralations does not reproduce the expected results.Comment: To appear in the proceedings "IX Hadron Physics and VII Relativistic Aspects of Nuclear Physics: A Joint Meeting on QCD and QGP, Hadron Physics-RANP,2004,Angra dos Reis, Rio de Janeiro,Brazi

Surprises in the relativistic free-particle quantization on the light-front

We use the light front ``machinery'' to study the behavior of a relativistic free particle and obtain the quantum commutation relations from the classical Poisson brackets. We argue that their usual projection onto the light-front coordinates from the covariant commutation relations show that there is an inconsistency in the expected correlation between canonically conjugate variables ``time'' and ``energy''. Moreover we show that this incompatibility originates from the very definition of the Poisson brackets that is employed and present a simple remedy to this problem and envisages a profound physical implication on the whole process of quantization.Comment: 13 page