Publications of the exobiology program for 1984: A special bibliography

A bibliography of NASA exobiology programs is given. Planetary environments; chemical evolution; organic geochemistry; extraterrestrial intelligence; and the effect of planetary solar and astrophysical phenomena on the evolution of complex life in the universe are among the topics listed

Mars Sample Handling Protocol Workshop Series: Workshop 4

In preparation for missions to Mars that will involve the return of samples to Earth, it will be necessary to prepare for the receiving, handling, testing, distributing, and archiving of martian materials here on Earth. Previous groups and committees have studied selected aspects of sample return activities, but specific detailed protocols for the handling and testing of returned samples must still be developed. To further refine the requirements for sample hazard testing and to develop the criteria for subsequent release of sample materials from quarantine, the NASA Planetary Protection Officer convened a series of workshops in 2000-2001. The overall objective of the Workshop Series was to produce a Draft Protocol by which returned martian sample materials can be assessed for biological hazards and examined for evidence of life (extant or extinct) while safeguarding the purity of the samples from possible terrestrial contamination. This report also provides a record of the proceedings of Workshop 4, the final Workshop of the Series, which was held in Arlington, Virginia, June 5-7, 2001. During Workshop 4, the sub-groups were provided with a draft of the protocol compiled in May 2001 from the work done at prior Workshops in the Series. Then eight sub-groups were formed to discuss the following assigned topics: Review and Assess the Draft Protocol for Physical/Chemical Testing Review and Assess the Draft Protocol for Life Detection Testing Review and Assess the Draft Protocol for Biohazard Testing Environmental and Health/Monitoring and Safety Issues Requirements of the Draft Protocol for Facilities and Equipment Contingency Planning for Different Outcomes of the Draft Protocol Personnel Management Considerations in Implementation of the Draft Protocol Draft Protocol Implementation Process and Update Concepts This report provides the first complete presentation of the Draft Protocol for Mars Sample Handling to meet planetary protection needs. This Draft Protocol, which was compiled from deliberations and recommendations from earlier Workshops in the Series, represents a consensus that emerged from the discussions of all the sub-groups assembled over the course of the five Workshops of the Series. These discussions converged on a conceptual approach to sample handling, as well as on specific analytical requirements. Discussions also identified important issues requiring attention, as well as research and development needed for protocol implementation

Aplicación de Salud-m en un servicio de emergencia médica prehospitalario

Se presenta la experiencia de puesta en producción de una aplicación de historia clínica electrónica sobre tablets para uso de los médicos en asistencias domiciliarias. El objetivo es asegurar la disponibilidad de la información en forma inmediata para la toma de decisiones asistenciales, optimizar el uso de recursos humanos y favorecer el uso de TICs en la salud. El sistema está desarrollado para Tablets con sistema operativo Android, que se conectan a la empresa mediante una Red Privada Móvil. La comunicación con el sistema central se realiza mediante Webservices, mientras que la conexión con las impresoras portátiles es vía Bluetooth.Sociedad Argentina de Informática e Investigación Operativ

Aplicación de Salud-m en un servicio de emergencia médica prehospitalario

Se presenta la experiencia de puesta en producción de una aplicación de historia clínica electrónica sobre tablets para uso de los médicos en asistencias domiciliarias. El objetivo es asegurar la disponibilidad de la información en forma inmediata para la toma de decisiones asistenciales, optimizar el uso de recursos humanos y favorecer el uso de TICs en la salud. El sistema está desarrollado para Tablets con sistema operativo Android, que se conectan a la empresa mediante una Red Privada Móvil. La comunicación con el sistema central se realiza mediante Webservices, mientras que la conexión con las impresoras portátiles es vía Bluetooth.Sociedad Argentina de Informática e Investigación Operativ

HST NICMOS Observations of the Polarization of NGC 1068

We have observed the polarized light at 2 micron in the center of NGC 1068 with HST NICMOS Camera 2. The nucleus is dominated by a bright, unresolved source, polarized at a level of 6.0 pm 1.2% with a position angle of 122degr pm 1.5degr. There are two polarized lobes extending up to 8'' northeast and southwest of the nucleus. The polarized flux in both lobes is quite clumpy, with the maximum polarization occurring in the southwest lobe at a level of 17% when smoothed to 0.23'' resolution. The perpendiculars to the polarization vectors in these two lobes point back to the intense unresolved nuclear source to within one 0.076'' Camera 2 pixel, thereby confirming that this is the illuminating source of the scattered light and therefore the probable AGN central engine. Whereas the polarization of the nucleus is probably caused by dichroic absorption, the polarization in the lobes is almost certainly caused by scattering, with very little contribution from dichroic absorption. Features in the polarized lobes include a gap at a distance of about 1'' from the nucleus toward the southwest lobe and a ``knot'' of emission about 5'' northeast of the nucleus. Both features had been discussed by ground-based observers, but they are much better defined with the high spatial resolution of NICMOS. The northeast knot may be the side of a molecular cloud that is facing the nucleus, which cloud may be preventing the expansion of the northeast radio lobe at the head of the radio synchrotron-radiation-emitting jet. We also report the presence of two ghosts in the Camera 2 polarizers. These had not been detected previously (Hines et al. 2000) because they are relatively faint and require observations of a source with a large dynamic range.Comment: 17 pages, 4 figure

Modelo de simulación de tránsito de un vehículo de paseo terrestre en trayectoria curva

De acuerdo con la U.S. Federal Highway Administration cerca del 30% de los accidentes fatales cada año en Estados Unidos ocurren en trayectos curvos, y el 83% de ellos son por salida de pista en derrape lateral, trompo o volcamiento. La principal causa de este hecho, ocurre por exceso de velocidad en la curva, ausencia de señalización vertical que indique límites máximos, ausencia de estudios de ingeniería que determinen un índice de consistencia geométrica adecuada, inexistencia de un perfil de velocidades reales inducido por el trazado definitivo de la vía, deficiencia en la señalización horizontal en lo que respecta a visibilidad de sobrepaso. En este trabajo se aborda la problemática física y dinámica de un vehículo de paseo en trayectoria curva, y se desarrolla un modelo matemático simplificado para su utilización en un simulador de conducción de vehículos.Publicado en: Mecánica Computacional vol. XXXV, no. 20Facultad de Ingenierí

Modelo de simulación de tránsito de un vehículo de paseo terrestre en trayectoria curva

De acuerdo con la U.S. Federal Highway Administration cerca del 30% de los accidentes fatales cada año en Estados Unidos ocurren en trayectos curvos, y el 83% de ellos son por salida de pista en derrape lateral, trompo o volcamiento. La principal causa de este hecho, ocurre por exceso de velocidad en la curva, ausencia de señalización vertical que indique límites máximos, ausencia de estudios de ingeniería que determinen un índice de consistencia geométrica adecuada, inexistencia de un perfil de velocidades reales inducido por el trazado definitivo de la vía, deficiencia en la señalización horizontal en lo que respecta a visibilidad de sobrepaso. En este trabajo se aborda la problemática física y dinámica de un vehículo de paseo en trayectoria curva, y se desarrolla un modelo matemático simplificado para su utilización en un simulador de conducción de vehículos.Publicado en: Mecánica Computacional vol. XXXV, no. 20Facultad de Ingenierí

Modelo de simulación de tránsito de un vehículo de paseo terrestre en trayectoria curva

De acuerdo con la U.S. Federal Highway Administration cerca del 30% de los accidentes fatales cada año en Estados Unidos ocurren en trayectos curvos, y el 83% de ellos son por salida de pista en derrape lateral, trompo o volcamiento. La principal causa de este hecho, ocurre por exceso de velocidad en la curva, ausencia de señalización vertical que indique límites máximos, ausencia de estudios de ingeniería que determinen un índice de consistencia geométrica adecuada, inexistencia de un perfil de velocidades reales inducido por el trazado definitivo de la vía, deficiencia en la señalización horizontal en lo que respecta a visibilidad de sobrepaso. En este trabajo se aborda la problemática física y dinámica de un vehículo de paseo en trayectoria curva, y se desarrolla un modelo matemático simplificado para su utilización en un simulador de conducción de vehículos.Publicado en: Mecánica Computacional vol. XXXV, no. 20Facultad de Ingenierí

Mars Sample Handling and Requirements Panel (MSHARP)

In anticipation of the return of samples from Mars toward the end of the first decade of the next century, NASA's Office of Space Sciences chartered a panel to examine how Mars samples should be handled. The panel was to make recommendations in three areas: (1) sample collection and transport back to Earth; (2) certification of the samples as nonhazardous; and (3) sample receiving, curation, and distribution. This report summarizes the findings of that panel. The samples should be treated as hazardous until proven otherwise. They are to be sealed within a canister on Mars, and the canister is not to be opened until within a Biosafety Hazard Level 4 (BSL-4) containment facility here on Earth. This facility must also meet or exceed the cleanliness requirements of the Johnson Space Center (JSC) facility for curation of extraterrestrial materials. A containment facility meeting both these requirements does not yet exist. Hazard assessment and life detection experiments are to be done at the containment facility, while geochemical characterization is being performed on a sterilized subset of the samples released to the science community. When and if the samples are proven harmless, they are to be transferred to a curation facility, such as that at JSC

Discurso do Sujeito Coletivo aplicado a medição da motivação dos alunos durante a execução de atividades

Neste estudo buscamos compreender como a motivação dos estudantes a aprendizagem pode ser afetada por envio de gatilhos motivacionais automáticos durante a execução das atividades em ambientes de Aprendizagem Baseada em Problemas (PBL). A metodologia para validação dos gatilhos foi desenvolvida em dois momentos: (i) em 2017 com a participação de 60 alunos do curso de Engenharia de Software; e (ii) em 2018 com 23 alunos do segundo ano do curso de Engenharia de Computação. Ao final de cada um desses estudos, os pontos de vista dos alunos foram agrupados por classe e expressos através da construção do Discurso do Sujeito Coletivo (DSC). Assim, este estudo contribui para a discussão e apresentação do DSC como abordagem capaz de auxiliar os professores durante a avaliação das atividades propostas em sala de aula, principalmente por possibilitar observar a opinião de um grupo como um único sujeito