Search

Copyright of Cirugía y Cirujanos is the property of Publicidad Permanyer SLU and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Currently, the economic and technological development in the world moves quickly. Also, the ability to adapt and change within the business model of a company is very important. This situation can be seen heavily in businesses involved with technology; therefore, innovation and technological development of companies in these areas is essential. Freemium is a relatively new business model which born from the need for users to get high quality services at no cost. This model changed the concept of trading business applications and solutions and has proved very successful and suitable for a changing market. This article shows the strengths and weaknesses of this model as well as the opportunities presented as a means of promoting new value propositions. Additionally, we propose an architecture that supports and promotes this model, ensuring the satisfaction of the quality attributes required to its operation. [ABSTRACT FROM AUTHOR]

Copyright of MEDISAN is the property of Centro Provincial de Informacion en Ciencias Medicas de Santiago de Cuba and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

This study searched, using both quantitative and qualitative information; to identify significant factors to the development of PTSD in 52 Puerto Rico National Guard's veterans back from combat in Iraq and Afghanistan. The factorial analysis of the questionnaire's responses shows three main dimensions of significant traumatic events. Previous experiences of sexual abuse in childhood and/or adolescence, physical threat or actual aggression, including physical abuse of children and experiences of loss of loved ones are important factors in the development of trauma symptoms in those participants with combat experience. The implications of these findings, the conclusions and recommendations for further research are included in this paper. [ABSTRACT FROM AUTHOR]

Copyright of Cinta de Moebio is the property of Universidad de Chile, Facultad de Ciencas Sociales and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In the production and transportation of oil and gas there are many common problems of erosion-corrosion. The velocity of the flow and the drag of solid particles within the oil transported by pipelines are critical factors in the process of deterioration of low-carbon steels in the presence of CO2. In this research, tests of erosioncorrosion were performed in a cell with a dynamic system of rotating cylinder electrodes at speeds between 1 and 3 m / s, particle sizes between 300μm and 50μm at concentrations between 1 and 9% by weight. Techniques of direct current and alternating current were used to determine the corrosion rate under the conditions evaluated and determine the influence of the particles of sand and the speed of rotation on the corrosion rate of steel. A mathematical relation between the corrosion and system variables was calculated. [ABSTRACT FROM AUTHOR]

In this article we expose some of the characteristics of the material universe that allow us, using the statements of actual cosmovision, as well as the ones of the contemporary cosmology, to support the metaphysical analysis of the universe as a contingent and caused entity. That, in a certain way, allows Theodicy to base its study of God as efficient cause of the universe on the conclusions of cosmology, and on actual cosmovision, which is based on the analysis of auto-organization, complexity and finality systems. [ABSTRACT FROM AUTHOR]

Aristotle wonders whether the One is prior to the Many, or conversely. Indeed, the Many seems to bean aggregate of several Ones; but, in order to understand the One, it has to be compared with Many others. This article evaluates Aristotle's approach to this problem, according to the reading and solution given by Aquinas in his Commentary on Metaphysics. [ABSTRACT FROM AUTHOR]