La Agencia Madrileña para la Tutela de Adultos.

Sin resume

Hardware Support for Advanced Data Management Systems

This thesis considers the problem of the optimal hardware architecture for advanced data management systems, of which the REL system can be considered a prototype. Exploration of the space of architectures requires a new technique which applies widely varying work loads, performance constraints, and heuristic configuration rules with an analytic queueing network model to develop cost functions which cover a representative range of organizational requirements. The model computes cost functions, which are the ultimate basis for comparison of architectures, from a technology forecast. Thc discussion shows the application of the modeling technique to thirty trial architectures which reflect the major classifications of data base machine architectures and memory technologies. The results suggest practical design considerations for advanced data management systems

The Month at Caltech

Survey of Seniors; We've Got Their Number; Cannon Law; Record Breakers; Mariner 9 Retires; Co-op Housing; Black Hole?; Noyes Annexed; One Small Step; JPL Renamed; Faculty Honor

Automatic generation of help from interface design models

This is the author's version of the work. It is posted here for your personal use. Not for redistribution. The definitive Version of Record was published in CHI '94, http://dx.doi.org/10.1145/191666.191751Proceedings of the SIGCHI Conference on Human Factors in Computing SystemsModel-based interface design can save substantial effort in building help systems for interactive applications by generating help automatically from the model used to implement the interface, and by providing a framework for developers to easily refine the automatically-generated help texts. This paper describes a system that generates hypertext-based help about data presented in application displays, commands to manipulate data, and interaction techniques to invoke commands. The refinement component provides several levels of customization, including programming-by-example techniques to let developers edit directly help windows that the system produces, and the possibility to refine help generation rulesRoberto Moriyon is supported by a grant from the Spanish Ministry of Education and Science. Pedro Szekely and Robert Neches are supported by ARPA through Contract Numbers NCC 2-719 and NO0174-91-0014

La Agencia Madrileña para la Tutela de Adultos.

Sin resume

Aprendizaje basado en proyectos: Estudio de caso sobre el potencial del método como modelo de enseñanza-aprendizaje en educación secundaria

La economía, como materia escolar tiene una gran relevancia dentro de la disciplina de las ciencias sociales, siendo lo que la distingue del resto de asignaturas su enfoque. El estudio de la economía por el alumnado se hace necesario ante los grandes cambios que experimenta la sociedad española presentes en todos los aspectos de nuestra vida cotidiana. Cualquier ciudadano necesita conocer las reglas básicas que explican los acontecimientos económicos, así como su lenguaje específico necesario para poder analizarlos. El estudio de esta área potencia las habilidades y el razonamiento del alumnado, desarrolla el espíritu emprendedor, conocimiento matemático y capacidad analítica, curiosidad intelectual, así como las habilidades de comunicación oral y escrita para explicar y transmitir ideas o desarrollar conclusiones razonadas. Por tanto, se debe adquirir una nueva dimensión que ponga énfasis en un aprendizaje que contribuya a la sociedad dando un aporte a la educación actual no prevaleciendo inmersos en un paradigma conductista que no da respuesta a las necesidades reales que nos demanda nuestro alumnado. Así es como se inicia un proceso de cambio con la aplicación del modelo constructivista para atender estas exigencias educativas actuales. Estos cambios que se están produciendo en el momento actual en el mundo de las ciencias de un modelo de enseñanza aprendizaje a un modelo de aprendizaje enseñanza basado en la investigación, la práctica y lo experimental hace que dentro de este marco sea comprensible apostar por modelos centrados en el aprendizaje a partir de metodologías activas que den respuesta a estos nuevos retos formativos. La presente tesis analiza los resultados de una experiencia de aprendizaje desarrollada en cuarto curso de educación secundaria del Instituto Politécnico Cristo Rey en Valladolid. Se aplica el método de enseñanza Aprendizaje Basado en Proyectos a través de la elaboración de un proyecto titulado: Mi plan de empresa. Del análisis de la información obtenida se aprecia que la aplicación del método Aprendizaje Basado en Proyectos contribuye a desarrollar entre el alumnado competencias clave hacia la búsqueda de conocimiento.Departamento de PedagogíaDoctorado en Investigación Transdisciplinar en Educació

PolliRS: A 3D Printed Pollicization Retractor System that improves access and autonomy during the surgical procedure.

We demonstrate the design, manufacture, and deployment of the first custom-made 3-dimensional (3D)-printed hand retractor for the pollicization procedure. Radiological images of the patient’s hand were taken preoperatively to measure anatomical dimensions and guide the design of the device in a patient-precise manner. The 3D-printed, sterilizable, device was autoclaved and successfully used on a patient that underwent a pollicization procedure in our unit. The radiolucency of the device and the fluency enabled by the ability to exchange between different positions demonstrated the potential of this device in increasing the overall autonomy afforded to the lead-surgeon during the operation and demonstrated the potential of rapid-prototyping techniques such as 3D printing for producing patient-precise tools on-the-fly that taken account the specific needs of the patient

Planning to Explore: Using a Coordinated Multisource Infrastructure to Overcome Present and Future Space Flight Planning Challenges

Few human endeavors present as much of a planning and scheduling challenge as space flight, particularly manned space flight. Just on the operational side of it, efforts of thousands of people across hundreds of organizations need to be coordinated. Numerous tasks of varying complexity and nature, from scientific to construction, need to be accomplished within limited mission time frames. Resources need to be carefully managed and contingencies worked out, often on a very short notice. From the beginning of the NASA space program, planning has been done by large teams of domain experts working months, sometimes years, to put together a single mission. This approach, while proven very reliable up to now, is becoming increasingly harder to sustain. Elevated levels of NASA space activities, from deployment of the new Crew Exploration Vehicle (CEV) and completion of the International Space Station (ISS), to the planned lunar missions and permanent lunar bases, will put an even greater strain on this largely manual process. While several attempts to automate it have been made in the past, none have fully succeeded. In this paper we describe the current NASA planning methods, outline their advantages and disadvantages, discuss the planning challenges of upcoming missions and propose a distributed planning/scheduling framework (CMMD) aimed at unifying and optimizing the planning effort. CMMD will not attempt to make the process completely automated, but rather serve in a decision support capacity for human managers and planners. It will help manage information gathering, creation of partial and consolidated schedules, inter-team negotiations, contingencies investigation, and rapid re-planning when the situation demands it. The fist area of CMMD application will be planning for Extravehicular Activities (EVA) and associated logistics. Other potential applications, not only in the space flight domain, and future research efforts will be discussed as well