Quantitative Analysis and Skill Building in Public Administration Graduate Education

Trabajo de suficiencia profesionalEl presente trabajo consiste en la Implementación de control PID en un microcontrolador PIC para un esterilizador de calor seco. El diseño contempla una interfaz de usuario para poder configurar la temperatura de esterilización, según la cual el sistema regula la temperatura mediante el control PID digital y control de potencia por PWM usando como actuador una resistencia calefactora de 700 watios y como sensor de realimentación una termocupla tipo J, además controla el tiempo de esterilizado que también es configurable. Este equipo va a utilizarse para eliminar microorganismos en los materiales quirúrgicos y de laboratorio que soporten temperaturas entre los 25°C y 170°C. En tal sentido el presente informe de suficiencia profesional consta de IV capítulos : Capítulo I se detalla el problema por el cual se quiso hacer esta tesina, los objetivos la hipótesis y limitaciones y facilidades. Se quiso crear este arquetipo que fue debido a la experiencia que tuve en los trabajos en los hospitales por las dificultades que tienen los hospitales al no tener equipos de necesidad inmediata. Capítulo II se detalla la teoría para poder diseñar el esterilizador a calor como el uso de la modulación PWM ,el control PID, control encendido y apagado con respecto al control de potencia. Esta teoría ayudó en gran magnitud al análisis respectivo de los dispositivos necesarios para armar este equipo. Capítulo III se detallan los resultados obtenidos por MATLAB,PROTEUS utilizando un data logger. Se necesitó un osciloscopio de una entidad privada para la obtención de los datos necesarios en la construcción de este esterilizador a calor seco. Capítulo IV se detalla el desarrollo de los circuitos electrónicos diseñados para el esterilizador usando el PIC de la familia 16F8XX, como dispositivo de control de potencia basado en el SCR y un acondicionador de señal para el uso del sensor

Accounting students' IT applicaton skills over a 10-year period

This paper reports on the changing nature of a range of information technology (IT) application skills that students declare on entering an accounting degree over the period from 1996 to 2006. Accounting educators need to be aware of the IT skills students bring with them to university because of the implications this has for learning and teaching within the discipline and the importance of both general and specific IT skills within the practice and craft of accounting. Additionally, IT skills constitute a significant element within the portfolio of employability skills that are increasingly demanded by employers and emphasized within the overall Higher Education (HE) agenda. The analysis of students' reported IT application skills on entry to university, across a range of the most relevant areas of IT use in accounting, suggest that their skills have continued to improve over time. However, there are significant differential patterns of change through the years and within cohorts. The paper addresses the generalizability of these findings and discusses the implications of these factors for accounting educators, including the importance of recognising the differences that are potentially masked by the general increase in skills; the need for further research into the changing nature, and implications, of the gender gap in entrants' IT application skills; and the low levels of entrants' spreadsheet and database skills that are a cause for concern

Social and cultural origins of motivations to volunteer a comparison of university students in six countries

Although participation in volunteering and motivations to volunteer (MTV) have received substantial attention on the national level, particularly in the US, few studies have compared and explained these issues across cultural and political contexts. This study compares how two theoretical perspectives, social origins theory and signalling theory, explain variations in MTV across different countries. The study analyses responses from a sample of 5794 students from six countries representing distinct institutional contexts. The findings provide strong support for signalling theory but less so for social origins theory. The article concludes that volunteering is a personal decision and thus is influenced more at the individual level but is also impacted to some degree by macro-level societal forces

Enhancing volunteer engagement to achieve desirable outcomes: what can non-profit employers do?

Abstract Engagement is a positive psychological state that is linked with a range of beneficial individual and organizational outcomes. However, the factors associated with volunteer engagement have rarely been examined. Data from 1064 volunteers of a wildlife charity in the United Kingdom revealed that both task- and emotion-oriented organizational support were positively related to volunteer engagement, and volunteer engagement was positively related to volunteer happiness and perceived social worth and negatively related to intent to leave the voluntary organization. Consistent with theory, engagement acted as a mediator between these factors. The implications for future research and the relevance of the findings for voluntary organizations are discussed