Resolución de relaciones de recurrencia lineales no homogéneas con coeficientes constantes a través de valores y vectores propios

La resolución de relaciones de recurrencia es un tema de vital importancia para abordar distintos tipos de problemas en matemática e informática. Tradicionalmente, los textos de Estructuras Discretas, que proponen métodos de resolución de recursividades lineales, se basan en el planteamiento de ecuaciones polinómicas difícilmente programables. Este artículo expone un método fundamentado en el uso de valores y de vectores propios, brinda la facilidad, por un lado, de ofrecer soluciones suficientemente generales y por otro, de utilizar un enfoque que permite su programaciónde una manera relativamente sencilla.

Calidad de vida, sentido de coherencia y satisfacción laboral en profesores (as) de colegios técnicos en la Dirección Regional de Heredia

The aim of this study was to analyze the Quality of Life, Sense of Coherence and Job Satisfaction by teachers of technical schools in the Heredia´s region. A group of 81 educators (25 male and 56 female) joined the study. It was used the SF-36 Questionnaire, the Sense of Coherence scale and a list of items related to the Job Satisfaction. There were found three factors associated to job satisfaction: (1) social atmosphere and job recognition, (2) infrastructure conditions, salary and promotion and (3) amount of job and relationship with the students. In general the results showed scores up of average Quality of Life. However, there were found low scores in central aspects like “Vitality”. The highest factors scores were found by the physical function and the physical role. The sense of coherence scores related to the factors “Life” and “Feelings” were middle. Both factors were significant associated to some dimensions of Quality of Life and Job Satisfaction. In sum, the results showed up, that it is necessary to develop programs in order to enhance sense of coherence and quality of life. Likewise, it is important to promote job satisfaction. A good job satisfaction has positive consequences to the health, and increase the compromise levels and teachers identification to the profession.