Evaluación de la eficacia de aceites de fritura con técnicas ultrasónicas

The performance of unhydrogenated soybean oil (USBO) and partially hydrogenated soybean oil (PHSBO) was evaluated by comparing their frying stability. Ultrasonic velocity was used to evaluate the oils. Measurements of free fatty acids (FFA) and total polar compounds (TPC) are typical indexes of oil degradation. Oils were heated at 180 °C for periods of 8 h per day for 4 consecutive days. The results from the ultrasonic analyses show different influences of thermo-oxidation on USBO and PHSBO. The ultrasonic measurements had strong correlations with chemical changes. Consequently, the ultrasonic method is useful to obtain information on the quality of the used frying oils.La eficacia de aceites de soja sin hidrogenar (USBO) y aceites de soja parcialmente hidrogenado (PHSBO) fue evaluada por comparación de sus estabilidades de fritura. La velocidad ultrasónica fue usada para evaluar los aceites. La medida de ácidos grasos libres (FFA) y compuestos polares (TPC) son típicos índices de degradación de aceites. Los aceites fueron calentados a 180 °C en periodos de 8 h por día durante 4 días consecutivos. Los resultados del análisis ultrasónico muestran diferentes influencias de termooxidación en USBO y PHSBO. Las medidas ultrasónicas tuvieron una fuerte correlación con cambios químicos. Consecuentemente, el método ultrasónico es útil para obtener información en la calidad de aceites de fritura usados

The strategic orientation of the managerial ties for new product development

The creation of partnerships with external actors is a key success factor for the Extended Enterprise (EE) and in order to manage the knowledge grasped from these partners, it is necessary to structure them into networks and communities of practice. In this paper, we show that strategic communities can emerge from networks of partners. In fact, in the case study, a firm gathers its external partners in a network for the managerial collaboration and assembles the ones that are more strategic for the knowledge creation and sharing in a community. The context of the research is the automotive industry and the partners of the large manufacturing firm provides the after-sales services for the automotive products. Managerial collaboration contributes to the identification of the most strategic partners, thus, the emergence of strategic ties. We identify, through various data collection methods, the mechanisms and dynamics of managerial and strategic ties. The first are known interdependencies, integrated Information Technology (IT) tools, trust and collaborative leadership and the second are specific IT tools to insert technical new knowledge, strategic gatekeepers to filter knowledge and a nonfinancial reward system to enhance knowledge sharing

Integrated systems for product design: The move toward outsourcing

The extended enterprise create partnerships with its external environment in order to acquire strategic information and achieve competitive advantage. For that, it integrates its information systems with the partners for fast communication and new knowledge integration in the product development process. The integrated systems involved in the interorganizational collaboration have specific functions and features. In this paper, we present the case study related to an aerospace firm integrating its information systems with one of its partners for complex product design. We investigate on the types of systems integrated, on their success factors and their impact on the product design. The results of the study provide important insights on the integration of the information systems for product development outsourcing

Factors constraints on firms managers research participation in action research and learning: The ‘Déjà Vu’ research method

Research laboratories, universities and consulting firms undertake research activities for performances analysis, businesses, technologies, products and services developments, governments, and political and sociological systems developments. In the case of firms' studies, the key informants regarding any research are the firms' managers that are involved either through interviews, or ethnographies or questionnaires responses. The key informants provide many types of data for the development of research and their role is primordial in its on-going process. In the process of data collection, there can be some challenges and obstacles slowing down the move toward data analysis for the confirmation of the hypothesis of the research or the achievement of the research output. Thus, the aim of this paper is to investigate on the factors that can slow down the on-going process of any research while communicating with the managers for their research participation. The 'Deja Vu' research method derived from the research and used is based on the analysis of the interactions taking place among university's researchers and firms' managers in the automotive and aerospace industry. The initial purposes of these interactions were for action research for businesses analysis and development and case studies creation from the firms for action learning of an international master program students. The paper presents the 'Deja Vu' research method' and provides details and definitions of the factors' constraints with respect to the firm's managers research participation. We find out that both actions -research and learning-have common factors' constraints as the managers availability and managers' strategic position in the firms, and different factors regarding the implications as value-added to business development and financial funds, and the brand image and the financial support for learning, respectively. And according to the types of actions and based on the factors' constraints, we derive a brief methodology for researchers to enhance firms' managers participation in research