1,053 research outputs found

    The Rio Games Legacy in Mobility: Challenges Beyond Infrastructure

    Get PDF
    The City of Rio de Janeiro, Brazil, a city of 6.5 million inhabitants, had several years to plan, invest, and prepare for the 2016 Olympic and Paralympic Games. A significant part of these efforts were in mobility infrastructure and operations, as they would become a fundamental legacy for the city. Silva, Maiolino and Torres, who were involved in these efforts in various capacities, discuss this experience and some of the challenges that go beyond investments in infrastructure such as behavior and operational changes

    Design and manufacture of a customised temporomandibular prosthesis

    Get PDF
    In this work, design, manufacture and surgical success of a personalised temporomandibular prosthesis is featured. A fused deposition modelling technique and Die forging process constitute the methodology used in a patient who had an amputation in the upper third branch of the mandible, without considering the joint capsule. The implant was designed using a processed resection image of a computational tomography and using the methodology of Özkaya and Nordin. The jaw operating conditions were simulated by the finite element method (FEM). The main considered factors were the morphological geometry of the patient, implant fixation in the first third of the branch, implant fixation on the chin, dental post for placement of the teeth, and the form of the sub-lingual fossa weight optimisation. Special consideration was to preserve the patients facial aesthetics.Peer Reviewe

    A importância da educação física para trabalhar as habilidades sociais de crianças com síndrome de down no segundo ciclo de educação infantil

    Get PDF
    Resumen: El presente trabajo trata de dar información al maestro de Educación Infantil sobre los beneficios que tiene la Educación Física para trabajar las habilidades sociales con niños con Síndrome de Down (SD). Las ventajas o beneficios de la actividad deportiva sobre los niños con discapacidad son muy variadas, desde el correcto desarrollo psicomotor hasta el aprendizaje y control de las habilidades emocionales. El método pedagógico que se utilice es esencial para conseguir una Educación Inclusiva, pues el trabajo que se hace con niños con edades comprendidas entre los 3 y 6 años es vital para su correcto desarrollo integral. Es aquí, en esta etapa, donde los conocimientos se integran de forma sencilla a partir del juego, por lo que la Educación Física va a ser el medio de transmisión en ese proceso de enseñanza/aprendizaje, además no podemos olvidar que tiene que estar adaptada a todos los niños.Abstract: The present work tries to give information to the teacher of Infantile Education on the benefits that the Physical Education has to work the social skills with children with Down Syndrome (DS). The advantages or benefits of sports activity on children with disabilities are very varied, from the correct psychomotor development to the learning and control of emotional skills. The pedagogical method used is essential to achieve Inclusive Education, since the work done with children between the ages of 3 and 6 is vital for their proper integral development. It is here, in this stage, where knowledge is integrated in a simple way from the game, so Physical Education will be the means of transmission in this teaching / learning process, also we cannot forget that it has to be adapted to all the children.Resumo: O presente trabalho procura dar informações ao professor de Educação Infantil sobre os benefícios que a Educação Física tem para trabalhar as habilidades sociais com crianças com Síndrome de Down (SD). As vantagens ou benefícios da atividade esportiva em crianças com deficiência são muito variadas, desde o correto desenvolvimento psicomotor até o aprendizado e o controle das habilidades emocionais. O método pedagógico utilizado é essencial para alcançar a Educação Inclusiva, uma vez que o trabalho realizado com crianças entre 3 e 6 anos é vital para o seu desenvolvimento integral. É aqui, nesta etapa, onde o conhecimento é integrado de forma simples a partir do jogo, para que a Educação Física seja o meio de transmissão nesse processo de ensino / aprendizagem, também não podemos esquecer que tem que ser adaptado para todas as crianças

    Phantom Cosmology with Non-minimally Coupled Real Scalar Field

    Full text link
    We find that the expansion of the universe is accelerating by analyzing the recent observation data of type \textsc{I}a supernova(SN-Ia) .It indicates that the equation of state of the dark energy might be smaller than -1,which leads to the introduction of phantom models featured by its negative kinetic energy to account for the regime of equation of state parameter w<1w<-1.In this paper the possibility of using a non-minimally coupled real scalar field as phantom to realize the equation of state parameter w<1w<-1 is discussed.The main equations which govern the evolution of the universe are obtained.Then we rewrite them with the observable quantities.Comment: 12 pages, 2 figures. Accepted for publication in Gen.Rel.Gra

    Dirac-like Monopoles in Three Dimensions and Their Possible Influences on the Dynamics of Particles

    Get PDF
    Dirac-like monopoles are studied in three-dimensional Abelian Maxwell and Maxwell-Chern-Simons models. Their scalar nature is highlighted and discussed through a dimensional reduction of four-dimensional electrodynamics with electric and magnetic sources. Some general properties and similarities of them when are considered in Minkowski or Euclidian space are mentioned. However, by virtue of the structure of the space-time in which they are considered a number of differences among them take place. Furthermore, we pay attention to some consequences of these objects when acting upon usual particles. Among other subjects, special attention is given to the study of a Lorentz-violating non-minimal coupling between neutral fermions and the field generated by a monopole alone. In addition, an analogue of the Aharonov-Casher effect is discussed in this framework.Comment: 20 pages. Latex format. No figures. Accepted for publication in Phys. Rev.

    Un estudio sobre la evaluación de libros didácticos

    Get PDF
    El libro de texto o libro didáctico ha sido utilizado como un recurso pedagógico que la mayoría de las veces define la secuencia de contenidos que se trabajan en las clases de ciencias. Por esa razón en estos últimos años ha adquirido una  gran importancia el desarrollo de criterios de evaluación de los libros de texto. Uno de los principales objetivos de este trabajo es ofrecer al profesorado un conjunto de criterios que les permita seleccionar el material didáctico que refleje claramente y se adecue al máximo posible a la realidad de su aula. En este trabajo presentamos un análisis comparativo inicial entre los libros de texto de conocimiento del medio de primaria españoles y de ciencias de la enseñanza fundamental brasileños. Inicialmente se diseñó una ficha de evaluación preliminar con 88 ítems, distribuidos en 6 categorías diferentes lo que permitió un análisis preliminar de los libros didácticos de ciencias españoles y brasileños. Se seleccionaron para el estudio los libros de texto más utilizados en los dos países y realizamos un análisis comparativo, basados en los criterios preliminares presentados en la ficha, con la finalidad de determinar el tratamiento que se daba a los contenidos relacionados con la salud. Evaluamos la utilización de la ficha como instrumento de análisis y determinamos un conjunto de criterios que pueden ser usados como indicadores en la evaluación de los contenidos de salud en los libros de texto de ciencias o conocimiento del medio de ambos países. Uno de  los resultados preliminares, nos muestra que la ficha de evaluación, a pesar de su extensión y presentar un amplio número de criterios, no tiene la función de establecer una clara diferenciación entre las obras analizadas. En estos libros se ha podido apreciar de manera clara la influencia de las directrices curriculares nacionales, los Parâmetros Curriculares Nacionales (PCN), en Brasil, y los Diseños Curriculares Base, en España. Estos definen entre otros aspectos el formato y la selección de contenidos que son seguidos por los diferentes autores y editoriales. Ambas directrices son orientaciones definidas por los Ministerios de Educación de cada país y que recomiendan, pero sin la fuerza de las leyes, la selección de contenidos, los principios psico-pedagógicos y las metodologías usadas en los libros didácticos de ciencia

    Generation and phenotypic characterization of Pde1a mutant mice

    Get PDF
    Contains fulltext : 177029.pdf (publisher's version ) (Open Access)It has been proposed that a reduction in intracellular calcium causes an increase in intracellular cAMP and PKA activity through stimulation of calcium inhibitable adenylyl cyclase 6 and inhibition of phosphodiesterase 1 (PDE1), the main enzymes generating and degrading cAMP in the distal nephron and collecting duct, thus contributing to the development and progression of autosomal dominant polycystic kidney disease (ADPKD). In zebrafish pde1a depletion aggravates and overexpression ameliorates the cystic phenotype. To study the role of PDE1A in a mammalian system, we used a TALEN pair to Pde1a exon 7, targeting the histidine-aspartic acid dipeptide involved in ligating the active site Zn++ ion to generate two Pde1a null mouse lines. Pde1a mutants had a mild renal cystic disease and a urine concentrating defect (associated with upregulation of PDE4 activity and decreased protein kinase A dependent phosphorylation of aquaporin-2) on a wild-type genetic background and aggravated renal cystic disease on a Pkd2WS25/- background. Pde1a mutants additionally had lower aortic blood pressure and increased left ventricular (LV) ejection fraction, without a change in LV mass index, consistent with the high aortic and low cardiac expression of Pde1a in wild-type mice. These results support an important role of PDE1A in the renal pathogenesis of ADPKD and in the regulation of blood pressure

    Sustainability-focused international PBL project:Rethinking digital education for individuals of low socioeconomic status

    Get PDF
    Providing access to education for individuals of lower socio-economic status is a significant way to reduce poverty, as it empowers them to grow as professionals and as individuals. Although there is an increasing sense of urgency to promote these changes, notably motivated by the Sustainable Development Goals (SDGs) set by the UN 2030 Agenda, there are still few successful ways to solve this problem on a large-scale. As digital technology develops and affordability increases, new ways to share quality educational content are created. In an exploratory case study, with a qualitative approach, this paper presents the development of a digital application focused on providing quality educational content directed to vulnerable groups that lack access to formal learning experiences, specifically focused on waste pickers in Brasilia, Brazil. The main data collection methods used to make the decisions through the development process were observation, surveys, and interviews. Within the framework of Problem Based Learning (PBL) an international cross-disciplinary collaboration among different universities, the project, denominated “Mobile Education”, involved: (i) the design and implementation of a system consisting of both a web and mobile application; (ii) the research of a viable business model to provide long-term sustainability for the project; (iii) and the creation of a pilot course of financial education for the preliminary target group, i.e., waste pickers from Brasilia, Brazil. Conclusively, the project aims to positively impact social transformation for individuals who work at the Waste Sorting facilities and lack financial knowledge. The Mobile Education project resulted in a functional version of the app (Web and Mobile) as well as the delimitation of a viable business model to keep it providing digital equality in Brazilian education
    corecore