Máquina virtual sobre procesador ARM

La idea de virtualización en el mundo de la informática está ampliamente extendida pero en el campo de los sistemas empotrados y más concretamente para arquitecturas ARM está dando sus primeros pasos. Por ello, se decidió desarrollar una máquina virtual sobre ARM de manera que podamos ser pioneros en este sector. Esta máquina virtual está implementada a nivel de sistema operativo y en ella se trata de crear una serie de jaulas o contenedores que tendrán su propio sistema de ficheros, gracias a las características que proporciona la función chroot, y que también tendrán aislados los procesos del interior con respecto de los procesos del exterior del contenedor. A lo largo de este documento encontrará las investigaciones realizadas previas al desarrollo y un resumen del concepto de virtualización donde también se explican las razones por las cuales se tomaron las decisiones que llevaron al modelo de “jaula”. Posteriormente está detallado todo el desarrollo dividido en los apartados de soluciones descartadas, implementación y líneas de trabajo futuras. Por último, se encuentran una serie de análisis de la implementación y de las pruebas realizadas y una conclusión de todo el trabajo realizado a lo largo del curso. [ABSTRACT] The idea of virtualization in the computer’s science world is widely extended although in the field of the embedded systems, in fact ARM architectures, it is in its first steps. Therefore, we decided to develop a virtual machine for ARM so that we could be pioneers in this sector. This virtual machine monitor is implemented at an operative system level in which we’ve tried to create a number of jails or containers that would have their own file system, due to the functionality of chroot, and also the inside processes would be isolated from the outside processes. Throughout this document you will find the predevelopment investigations done and a summary of the virtualization concept where the reasons which led to the decision of the “jail” model are also explained. Afterwards, the entire development is detailed divided into three parts called discarded solutions, implementation and future work lines. By the end, there is a number of analysis about the implementation and the benchmarks we have done and the conclusions of the work we have done through the year

Technology Parks versus Science Parks: Does the university make the difference?

Science and Technology Parks (STPs) has become fairly widespread through the world, although their effect on firms' innovation performance is still a very debated issue. A recent stream in the literature points to heterogeneity of tenants and of parks themselves being a key concept when assessing STPs effect on tenants' performance. An important source of STPs heterogeneity that has been disregarded so far is the degree of university involvement in these parks. At the extremes, there are parks that are owned and managed by universities, and parks with no formal links with a university. We use data from the Community Innovation Survey (CIS) for Spain and a survey of STP park managers to analyse how the degree of involvement of a university in the STP is related to innovation outputs of its tenants and their links with universities. We show that higher involvement of a university in the STP is positively related to the number of patent applications, but negatively related to tenant's innovation sales. In addition, we find no robust evidence that higher involvement of a university in the STP is positively related to the propensity for park firms to cooperate with a university or to purchase external R&D services from the university

The influence of Science and Technology Park characteristics on firms' innovation results

The effectiveness of Science and Technology Parks (STPs) as instruments of innovation policy has generated thriving debate among academics, practitioners and policy makers. However, research mostly does not consider STPs’ heterogeneity. The present paper analyses the influence of different STP characteristics on their tenants' performance. Using data on 849 firms and 25 STPs from the 2009 Community Innovation Survey for Spain and a survey of STP managers respectively, we find that: (i) firms located in very new or longer established STPs show better innovative performance; (ii) the size of the STP and its management company positively affects the innovative performance of tenants while services provision has no effect on firms’ achieving better results; and (iii) firms in less technologically developed regions benefit more from location in an STP

Hiperactividade e défice de atenção em contexto escolar : estudo comparativo das percepções e atitudes de professores do 1º, 2º e 3º ciclos do ensino básico

Dissertação de Mestrado em Educação EspecialO presente estudo pretendeu explorar e comparar as percepções dos 1º, 2º e 3º Ciclo do Ensino Básico, de um Agrupamento de Escolas relativamente às variáveis de Conhecimento (características, prevalência, etiologia, evolução, diagnóstico, problemas associados), Percepções de Impacto (efeitos no contexto) e Atitudes (formas de intervenção e estratégias de sala de aula) em relação a crianças/jovens com PHDA. Este estudo tem carácter sobretudo exploratório (descritivo) como uma análise quantitativa, qualitativa e correlacional dos resultados. O instrumento de pesquisa utilizado para servir de instrumento de recolha de dados constou de um questionário por inquérito. De um total de N=190 inquéritos distribuídos, foram recebidos N=110, os quais foram sujeitos a tratamento estatístico. Os resultados mostram que os participantes demonstram ter conhecimento sobre a PHDA. Quanto ao impacto são as “Dificuldades de Aprendizagem”, a “Dificuldade na Relação com os Pares” e o “Não aceitar e respeitar as regras” que segundo os professores provocam maior desadaptação no contexto escolar. Em relação à atitude bem como às estratégias a utilizar, estes revelaram utilizar diversas estratégias no seu quotidiano de trabalho com estas crianças. Os dados apurados relativamente á comparação entre ciclos, sugerem diferenças entre o 1º,2º e 3º ciclo relativamente ao Conhecimento, ao Impacto, á Atitude e ás Estratégias utilizadas com as crianças com PHDA.This study aims to explore and compare the perceptions of the 1st, 2nd and 3rd stages of Basic Education in a group of schools relating to the variables of knowledge (characteristics, prevalence, aetiology, evolution, diagnosis, associated problems), perceptions of impact (effects within the context) and attitudes (means of intervention and strategies in the classroom) in relation to children/teenagers with ADHD. This study is predominantly exploratory (descriptive) in nature with a quantitative, qualitative and correlational analysis of the results. The research is based on data collected from questionnaires. Of a total of N=190 questionnaires distributed, N=110 were returned, which were analysed statistically. The results show that participants are aware of ADHD. According to the teachers “learning difficulties”, “difficulty relating to peers” and “non-acceptance of and disrespect for rules” have the greatest impact in causing non-adaptation in a school context. In relation to attitude and coping strategies, they reveal that they use various strategies in their day-to-day work with these children. Comparison of the data collected for each stage suggests differences between the 1st, 2nd and 3rd stage concerning knowledge, impact, attitude and the strategies used in dealing with children with ADHD

Diseño de aplicativos de "autodiagnóstico sectoriales" como soporte del trabajo autónomo en el nuevo EEES

El objetivo de estos aplicativos, centrados cada uno de ellos en diferentes sectores de la economía, es facilitar la consecución de uno de los objetivos vinculados a la implantación del Espacio Europeo de Enseñanza Superior (EEES), donde se establece que el proceso formativo universitario debe basarse en desarrollar el estudio continuado y autónomo de los estudiantes (self-regulated/managed learning). Nuestro aplicativo informático es un instrumento mediante el cual el alumno, de forma autónoma, puede autoevaluar cuál es su nivel de conocimiento de los contenidos de las asignaturas de Estadística (grado de A.D.E. de la Universitat de Barcelona) a través del análisis de una empresa ubicada en un determinado sector económico. En este sentido, también puede entenderse como un material didáctico en la línea del llamado aprendizaje basado en problemas (problem-based learning). Con una estructura dinámica, basada en cuestiones de opción múltiple, e incorporada como módulo dentro de la plataforma Moodle (utilizada por la Universitat de Barcelona), permite una ejecución "on-line" de su contenido. Nuestra herramienta es un ejemplo más de cómo el uso de las nuevas tecnologías de la información y la comunicación (TIC), puede contribuir enormemente a la innovación de los procesos de enseñanza-aprendizaje en el contexto universitario

Moodle como herramienta de soporte para el desarrollo de los TFG (Moodle Book)

Projecte: 2015PID-UB/034La actuación consiste (a partir de la experiencia acumulada por el grupo de innovación en las herramientas de Moodle para el aprendizaje autónomo) en diseñar una herramienta de soporte a los TFG a través de la lección de Moodle o el Moodle Book, que trabajado en una fase previa o fase cero, sea una herramienta que acompañe al alumno durante todo el proceso de creación del mismo: diferenciando entre las diferentes fases en un proceso de investigación, y más concretamente, en el marco de instrumental estadístico. Los participantes formamos parte del grupo: GIDUB-13/02

Why (Not) Desalination? Exploring Driving Factors from Irrigation Communities’ Perception in South-East Spain

Desalination for sustaining agricultural production is conceived as an alternative water source in some Mediterranean countries faced with climatological and hydrological constraints. Although high costs are often cited as limiting factors, how farmers discern desalinated water has not been discussed in-depth in the literature. This paper aims to deepen how desalination is perceived by irrigators, what driving factors are affecting irrigation communities’ decision-making processes, and what learnings can be drawn from their experiences regarding desalination acceptance or rejection. Eleven irrigation communities have been selected from Alicante and Murcia regions (South-East Spain), which account for more than 60,000 irrigators and 120,000 ha. Questionnaires were conducted between March and December 2019. Results highlighted the main advantages (water availability and supply security) and disadvantages (high price affecting profitable crop options, high-energy consumption, water quality standards, the production capacity of desalination plants, no seasonal variation in water production, and shortages due to technical problems) of using desalinated water. Additionally, through the analysis of regional and national press news, it can be concluded that socio-political aspects, such as corruption, cost overruns, and political disputes are also considered.This research was funded by the Spanish Ministry of Economy and Competitiveness (PLUVIRESMED research project, reference CSO2015-65182-C2-2P); by the Spanish Ministry of Science, Innovation and Universities (Juan de la Cierva-Incorporación postdoctoral grant to S.G., reference IJCI-2016-29016) and by the Spanish Ministry of Education, Culture and Sport (predoctoral fellowship to R.V., reference FPU15/01144)

Non-polymeric Microspheres for the Therapeutic Use of Estrogens: An Innovative Technology

Non-polymeric microspheres are stable-shaped particles constituted by crystalline organic compounds. This technology allows controlled release of parental products that has its prime value on estrogen therapy. The structure is a non-polymeric crystalline microsphere that uses a low solubility fatty acid, cholesterol as a carrier. Cholesterol is a waxy lipid, a substance that is insoluble in water and has been recognized as safe as excipient by FDA for the manufacturing of drugs. Cholesterol is a lipid present in the cell membrane and subcellular organelles of tissues and serves as the building block for all steroid hormones including cortisol, aldosterone, estrogen, and testosterone; therefore, this fatty acid provides better biocompatibility than polymers. The use of cholesterol as a low solubility carrier was used to develop a first of its kind, parental HT product for the management of menopausal symptoms carrying estrogen microspheres in an aqueous suspension, which would allow an extended estrogen release maintaining plasmatic therapeutic concentrations. Estradiol doses would be up to 30 times lower than that provided by oral and transdermal routes fulfilling current recommendations regarding the use of a low dose and the nonoral route. Both intramuscular monthly administered formulations of E/P non-polymeric microspheres had favorable pharmacokinetic and safety profiles, suggesting this route as an interesting, novel, and suitable way of treating menopause-related symptoms

Ser profissional sanitário no século XXI: alguns apontes

Desde los años 70 del pasado siglo, los teóricos de la historia han señalado el advenimiento de una nueva época, adjetivada como postmodernidad, Modernidad tardía o Modernidad reflexiva. Este nuevo tiempo, el nuestro, vendría marcado por el fin de los grandes relatos que hicieron comprensible el mundo humano occidental desde la Antigüedad, resquebrajando las viejas certidumbres y arrojando al sujeto a la atomización social y la auto-responsabilidad exacerbada de su propia existencia. Estas transformaciones ideológicas y sociales han traído profundas consecuencias en diversas esferas de la vida humana en Occidente tales como el trabajo, las relaciones personales o la política, a las que no escapa, obviamente, la medicina y la praxis médica occidental. Partiendo de este hecho, el propósito de este artículo es intentar analizar, en primer lugar, las significaciones y problemáticas de ese cambio de época. Y desde ahí, y en segundo lugar, tratar de comprender las consecuencias y variaciones que esas transformaciones están suponiendo para la medicina y sus profesionales sanitarios.From 1970’s theorists in History have noted the arrival of a new era known as Postmodernity, late-Modernity or reflexive Modernity. This new era, our current time, comes marked by the end of the ‘great stories’ that made western world comprehensible since ancient times, and cracking old certainties and putting the Subject in terms of social atomization and an accused self-responsibility. These ideological and social changes have brought profound consequences in many spheres (fields, scopes) in western human life, such as work, social (personal) relationships or politics, from where medicine and western practices don’t (seem to) escape. On this basis, this article tries to analyze, firstly, the meanings and difficulties of this new era; from there, and secondly, it tries to understand the consequences that these changes and variations are assuming for professionals in the fields of medicine and health.Desde os anos 70 do passado século, os teóricos da história têm assinalado a chegada de uma nova época, adjetivada como postmodernidad, Modernidad tardia ou Modernidad reflexiva. Este novo tempo, o nosso, viria marcado pelo fim dos grandes relatos que fizeram compreensível o mundo humano ocidental desde a Antiguidade, resquebrajando as velhas certezas e arrojando ao sujeito à atomización social e a auto-responsabilidade exacerbada de sua própria existência. Estas transformações ideológicas e sociais têm trazido profundas consequências em diversas esferas da vida humana em Occidente tais como o trabalho, as relações pessoais ou a política, às que não escapa, obviamente, a medicina e a praxis médica ocidental. Partindo deste facto, o propósito deste artigo é tentar analisar, em primeiro lugar, as significações e problemáticas dessa mudança de época. e desde aí, e em segundo lugar, tratar de compreender as consequências e variações que essas transformações estão a supor para a medicina e seus profissionais sanitários

Diseño de aplicativos de "autodiagnóstico sectoriales" como soporte del trabajo autónomo en el nuevo EEES

L'objectiu d'aquests aplicatius, centrats cadascun d'ells en diferents sectors de l'economia, és facilitar la consecució d'un dels objectius vinculats a la implantació de l'Espai Europeu d'Ensenyament Superior (EEES), on s'estableix que el procés formatiu universitari ha de basar-se a desenvolupar l'estudi continuat i autònom dels estudiants (self-regulated/managed learning). El nostre aplicatiu informàtic és un instrument mitjançant el qual l'alumne, de forma autònoma, pot autoavaluar quin és el seu nivell de coneixement dels continguts de les assignatures d'Estadística (grau d’A.D.E. de la Universitat de Barcelona) via l'anàlisi d'una empresa situada en un determinat sector econòmic. En aquest sentit, també pot entendre's com un material didàctic en la línia de l'anomenat aprenentatge basat en problemes (problem-based learning). Amb una estructura dinàmica, basada en qüestions d'opció múltiple, i incorporada com un mòdul dins de la plataforma Moodle (utilitzada per la Universitat de Barcelona), permet una execució “on-line” del seu contingut. La nostra eina és un exemple més de com l'ús de les noves tecnologies de la informació i la comunicació (TIC), pot contribuir enormement a la innovació dels processos d'ensenyament-aprenentatge en el marc universitari.The aim of these applications, each focusing on different sectors of the economy, is to facilitate the achievement of one of the objectives related to the implementation of the European Higher Education Area (EHEA), stating that the university educational process must be based on developing the students? continued and autonomous study (self-regulated/managed learning. Our computer-based learning is an instrument through which the student autonomously can self-assess the level of knowledge of Statistics subject content (A.D.E. degree from the University of Barcelona) through the analysis of a company located in a particular economic sector. In this sense, it can be understood as a teaching material on line based on problems (problem-based learning). With a dynamic structure, based on multiple choice questions, and incorporated as a module within the Moodle platform (used by the University of Barcelona), it allows a run on-line "of its content. Our tool is another example of how the use of new technologies of information and communication technologies (ICTs) can contribute enormously to innovation of the teaching and learning processes in the university context.El objetivo de estos aplicativos, centrados cada uno de ellos en diferentes sectores de la economía, es facilitar la consecución de uno de los objetivos vinculados a la implantación del Espacio Europeo de Enseñanza Superior (EEES), donde se establece que el proceso formativo universitario debe basarse en desarrollar el estudio continuado y autónomo de los estudiantes (self-regulated/managed learning). Nuestro aplicativo informático es un instrumento mediante el cual el alumno, de forma autónoma, puede autoevaluar cuál es su nivel de conocimiento de los contenidos de las asignaturas de Estadística (grado de A.D.E. de la Universitat de Barcelona) a través del análisis de una empresa ubicada en un determinado sector económico. En este sentido, también puede entenderse como un material didáctico en la línea del llamado aprendizaje basado en problemas (problem-based learning). Con una estructura dinámica, basada en cuestiones de opción múltiple, e incorporada como módulo dentro de la plataforma Moodle (utilizada por la Universitat de Barcelona), permite una ejecución “on-line” de su contenido. Nuestra herramienta es un ejemplo más de cómo el uso de las nuevas tecnologías de la información y la comunicación (TIC), puede contribuir enormemente a la innovación de los procesos de enseñanza-aprendizaje en el contexto universitario