The structure of Deitmar Schemes, II. Zeta functions and automorphism groups

We provide a coherent overview of a number of recent results obtained by the authors in the theory of schemes defined over the field with one element. Essentially, this theory encompasses the study of a functor which maps certain geometries including graphs to Deitmar schemes with additional structure, as such introducing a new zeta function for graphs. The functor is then used to determine automorphism groups of the Deitmar schemes and base extensions to fields.Comment: 8 page

Comunicación interna, factor de éxito en procesos de cambio organizacional

El ensayo en cuestión, pretende demostrar la importancia de un tipo de comunicación específico en las organizaciones, denominado comunicación interna como factor clave y efectivo de éxito para acometer los cambios de tipo organizacional que demandan las empresas, en su estructura se desarrollan conceptos como: comunicación desde el punto de vista de una acción humana, organización entendida como coordinación de recursos para lograr objetivos comunes, comunicación organizacional concebida como el flujo de información en el entorno de las empresas, asociadas al concepto de cambio organizacional, las fuerzas que influyen y promueven el cambio, los factores claves a desarrollar para lograr los objetivos propuestos, y por último se concluye con la relación entre la comunicación efectiva y el cambio en la organización. El ensayo esboza e interrelaciona, los conceptos y elementos que deben tomarse en cuenta a la hora de aplicar un proceso de comunicación interna, en un contexto de cambio organizacional, demostrando que no existe cambio sin comunicación efectiva, y que la comunicación interna no es aplicable sin visión de futuro dentro de las organizacione

Una propuesta de análisis en torno al pago único de la prestación por desempleo en emprendedores en economía social

El Real Decreto 1044/85, de 19 de junio configura la prestación por desempleo mediante pago único como un instrumento para el fomento del empleo. Desde entonces ha sido la base sobre la que se han desarrollado numerosas iniciativas empresariales y, por supuesto, algunas también dentro de la Economía Social. La trascendencia de esta modalidad de prestación para la Economía Social radica, además de la reducción de la dificultad de financiación -quizás común en todas las figuras empresariales, en el hecho de que las sociedades cooperativas y laborales pueden generar efectos en el empleo muy superiores a la media global (Fuentes y Mainar, 2015). Es por ello por lo que se propone que los poderes públicos fomenten y faciliten el acceso a esta herramienta de financiación en el seno de estas organizaciones. A lo largo de este trabajo se aborda la descripción del marco jurídico de la prestación por desempleo, se lleva a cabo una revisión de la literatura, destacando los principales autores que han abordado dicha temática y se analizan los datos disponibles del Ministerio de Empleo y Seguridad Social. Finaliza planteando la metodología de un inminente estudio empírico que complementará y contrastará la información disponible y, además, concretará algunas cuestiones de las que aún no se dispone de información.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

El uso de las tic en el cooperativismo agrario: propuesta de un modelo de balance digital cooperativo

La incorporación de la tecnología ha supuesto una constante desde la I Revolución Industrial y en la actualidad su intensidad de uso, su velocidad de introducción y sus características ligadas al mundo digital suponen un importante factor de diferenciación. Su expansión es consecuencia de las posibilidades que ofrece al mundo empresarial y a la sociedad en general, así como al abaratamiento de su coste y su relativa facilidad de uso. Esto está dando lugar a una transformación dirigida hacia la digitalización de la mayor parte de los procesos productivos y prestación de servicios, no pudiendo las sociedades cooperativas quedar al margen si quieren mantener su competitividad en el mercado. Aún así, son muchas las empresas que no apuestan de forma clara por la digitalización, existiendo grandes diferencias entre sectores, tamaño de empresas e incluso dentro de una misma actividad y para empresas de características similares. Estas diferencias en el nivel de digitalización constituyen una brecha que puede dar lugar, en el medio plazo, a la desaparición de las organizaciones más obsoletas como consecuencia, no únicamente de ineficiencias en la producción o no acceso a los nuevos mercados digitales, sino del no aprovechamiento del potencial de los datos. Ante esta realidad, nuestro trabajo pretende ofrecer a las cooperativas agrarias la posibilidad de evaluar su grado de digitalización mediante el uso de una herramienta que hemos denominado Balance Digital Cooperativo (BDC). Esta propuesta es fruto del estudio de la situación actual de los procesos de digitalización empresarial y de una revisión de la literatura que nos ha permitido identificar los conceptos, factores y variables que consideramos deben formar parte de este balance.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Autonomous Discovery of Motor Constraints in an Intrinsically-Motivated Vocal Learner

This work introduces new results on the modeling of early-vocal development using artificial intelligent cognitive architectures and a simulated vocal tract. The problem is addressed using intrinsically-motivated learning algorithms for autonomous sensorimotor exploration, a kind of algorithm belonging to the active learning architectures family. The artificial agent is able to autonomously select goals to explore its own sensorimotor system in regions where its competence to execute intended goals is improved. We propose to include a somatosensory system to provide a proprioceptive feedback signal to reinforce learning through the autonomous discovery of motor constraints. Constraints are represented by a somatosensory model which is unknown beforehand to the learner. Both the sensorimotor and somatosensory system are modeled using Gaussian mixture models. We argue that using an architecture which includes a somatosensory model would reduce redundancy in the sensorimotor model and drive the learning process more efficiently than algorithms taking into account only auditory feedback. The role of this proposed system is to predict whether an undesired collision within the vocal tract under a certain motor configuration is likely to occur. Thus, compromised motor configurations are rejected, guaranteeing that the agent is less prone to violate its own constraints.Peer ReviewedPostprint (author's final draft

Signal conditioning for the Kalman filter: application to satellite attitude estimation with magnetometer and sun sensors

Most satellites use an on-board attitude estimation system, based on available sensors. In the case of low-cost satellites, which are of increasing interest, it is usual to use magnetometers and Sun sensors. A Kalman filter is commonly recommended for the estimation, to simultaneously exploit the information from sensors and from a mathematical model of the satellite motion. It would be also convenient to adhere to a quaternion representation. This article focuses on some problems linked to this context. The state of the system should be represented in observable form. Singularities due to alignment of measured vectors cause estimation problems. Accommodation of the Kalman filter originates convergence difficulties. The article includes a new proposal that solves these problems, not needing changes in the Kalman filter algorithm. In addition, the article includes assessment of different errors, initialization values for the Kalman filter; and considers the influence of the magnetic dipole moment perturbation, showing how to handle it as part of the Kalman filter framework

Study of the impact federated erubrics on assessing competences in the practicum

Presentation Research of the Practicum and externships has a long history and involves important aspects for analysis. For example, the recent changes taking place in university grades allot more credits to the Practicum course in all grades, and the Company-University collaboration has exposed the need to study in new learning environments. The rise of ICT practices like ePortfolios, which require technological solutions and methods supported by experimentation, study and research, require particular examination due to the dynamic momentum of technological innovation. Tutoring the Practicum and externships requires remote monitoring and communication using ePortfolios, and competence-based assessment and students’ requirement to provide evidence of learning require the best tutoring methods available with ePortfolios. Among the elements of ePortfolios, eRubrics emerge as a tool for design, communication and competence-assessment. This project aims to consolidate a research line on eRubrics, already undertaken by another project -I+D+i [EDU2010-15432]- in order to expand the network of researchers and Centres of Excellence in Spain and other countries: Harvard University in USA, University of Cologne in Germany, University of Colima in Mexico, Federal University of Parana, University of Santa Catarina in Brasil, and Stockholm University in Sweden(1). This new project [EDU2013-41974-P](2) examines the impact of eRubrics on tutoring and on assessing the Practicum course and externships. Through technology, distance tutoring grants an extra dimension to human communication. New forms of teaching with technological mediation are on the rise and are highly valuable, not only for formal education but especially in both public and private sectors of non-formal education, such as occupational training, unemployed education and public servant training. Objectives Obj. 1. To analyse models of technology used in assessing learning in the Practicum of all grades at Spanish Faculties of Education. Obj. 2. To study models of learning assessment measured by eRubrics in the Practicum. Obj. 3. To analyse communication through eRubrics between students and their tutors at university and practice centres, focusing on students’ understanding of competences and evidences to be assessed in the Practicum. Obj. 4. To design assessment services and products, in order to federate companies and practice centres with training institutions. Among many other features, it has the following functions CoRubric(3) 1. The possibility to assess people, products or services by using rubrics. 2. Ipsative assessment. 3. Designing fully flexible rubrics. 4. Drafting reports and exporting results from eRubrics in a project. 5. Students and teachers talk about the evaluation and application of the criteria Methodology, Methods, Research Instruments or Sources Used The project will use techniques to collect and analyse data from two methodological approaches: 1. In order to meet the first objective, we suggest an initial exploratory descriptive study (Buendía Eisman, Colás Bravo & Hernández Pina, 1998), which involves conducting interviews with Practicum coordinators from all educational grades across Spain, as well as analysing the contents of the teaching guides used in all educational grades across Spain. 55 academic managers were interviewed from about 10 faculties of education in public universities in Spain (20%), and course guides 376 universities from 36 public institutions in Spain (72%) are analyzed. 2. In order to satisfy the second objective, 7 universities have been selected to implement the project two instruments aimed at tutors practice centers and tutors of the faculty. All instruments for collecting data were validated by experts using the Delphi method. The selection of experts had three aspects: years of professional experience, number and quality of publications in the field (Practicum, Educational Technology and Teacher Training), and self-rating of their knowledge. The resulting data was calculated using the Coefficient of Competence (Kcomp) (Martínez, Zúñiga, Sala & Meléndez, 2012). Results in all cases showed an average experience of more than 0.09 points. The two instruments of the first objective were validated during the first half of 2014-15 year, data collected during the second half. And the second objective during the first half of 2015-16 year and data collection for the second half. The set of four instruments (two for each objective 1 and 2) have the same dimensions as each of the sources (Coordinators, course guides, tutors of practice centers and faculty) as they were: a. Institution-Organization, b. Nature of internships, c. Relationship between agents, d. Management Practicum, e. Assessment. F. Technological support, g. Training and h. Assessment Ethics. Conclusions, Expected Outcomes or Findings The first results respond to Objective 1, where we find different conclusions depending on each of the six dimensions. In the case of internal regulations governing the organization and structure of the practicum, we note that most traditional degrees (Elementary and Primary grades) share common internal rules, in particular development methodology and criteria against other grades (Pedagogy and Social Education ). It is also true that the centers of practices in last cases are very different from each other and can be a public institution, a school, a company, a museum, etc. The memory with a 56.34% and 43.67% daily activities are more demands on students in all degrees, Lesson plans 28.18% 19.72% Portfolio 26.7% Didactic units and Others 32,4%. The technical support has been mainly used the platform of the University 47.89% and 57.75% Email, followed by other services and tools 9.86% and rubric platforms 1.41%. The assessment criteria are divided between formal aspects of 12.38%, Written expresión 12.38%, treatment of the subject 14.45%, methodological rigor of work 10.32%, and Level of argument Clarity and relevance of conclusions 10.32%. In general terms, we could say that there is a trend and debate between formative assessment against a accreditation. It has not yet had sufficient time to further study and confront other dimensions and sources of information. We hope to provide more analysis and conclusions in the conference date.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech. Spanish Plan of R+D+i Excellence (2014-2016) No. EDU2013-41974P