Guía de Aspectos Tributarios de las Entidades sin Ánimo de Lucro

Generalidades y definiciones de las Entidades sin Ánimo de Lucro (ESAL), Del régimen tributario especial, Del régimen de no contribuyentes, Las ESAL frente a los impuestos distritales, Consideraciones sobre la contabilidad de las ESAL, Qué trajo para la tributación de las ESAL la Ley 1739 de 2014

An Exploration of Professors’ Use of Twitter in Higher Education

Scant research has explored how professors in Canadian universities use Twitter as a teaching tool or to augment knowledge about their subject disciplines. This case study employed a mixed-method approach to examine how professors in an Ontario university use Twitter. Using a variation of the technology acceptance model, the survey (n = 17) found that professor participants—41.2% of whom use Twitter—perceive Twitter as somewhat useful as a teaching tool, not useful for finding and sharing information, and not useful for personal use. Participants’ gender and number of years teaching are not indicators of Twitter use. Furthermore, the level of support from peers and the university may be reasons why some do not use Twitter or have stopped using Twitter. Face-to-face interviews (n = 3) revealed that Twitter is not used in classrooms or lecture halls, but predominantly as a means of sharing information with students and colleagues. Another deterrent to using Twitter is not knowing who to follow. Findings indicate that some professors at this university embrace Twitter, but not necessarily as an in-class teaching tool. The challenge and the advantage of using Twitter is to discover and follow people who tweet material and to select relevant material to pass along to students and colleagues. Professor participants in the study found a use for the social network as a means to increase student engagement, create virtual information-exchange communities, and enrich their own learning.

El tiempo social de trabajo: (aspectos metódicos de su análisis)

Tesis (Maestría en Metodología de la Ciencia) UANL

Los aspectos cinéticos de la mineralización del ácido p-toluensulfónico como modelo de detergentes.

Tesis (Maestría en Ciencias con Especialidad en Ingeniería Ambiental) UANL

Estudio morfoanatómico y algunos aspectos ecofisiológicos - de especies silvestres de frijol (Phaseolus spp) en Nuevo León

Tesis (Maestría en Ciencias con Especialidad en Botánica). UANL

Aspectos básicos del análisis químico de materiales geológicos

Tesis (Maestría en Ciencias Químicas con Especialidad en Química Analítica) UANL