Raquel Galván

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Our goal was to determine whether existing tests of spatial ability can predict an astronaut's qualification test performance after robotic training. Because training astronauts to be qualified robotics operators is so long and expensive, NASA is interested in tools that can predict robotics performance before training begins. Currently, the Astronaut(More)
BACKGROUND It is still unknown whether a correlation exists between left ventricular Tei index obtained by tissue Doppler imaging and that determined by flow Doppler waveforms. This study was conducted to evaluate their relationship and to assess the positional effect on them. METHODS Twenty-six healthy subjects and 25 patients with essential hypertension(More)
Crewmember adapted to the microgravity state may need to egress the vehicle within a few minutes for safety and operational reasons after g-transitions. The transition from one sensorimotor state to another consists of two main mechanisms: strategic and plastic-adaptive and have been demonstrated in astronauts returning after long duration space flight.(More)
The journal Cactáceas y Suculentas Mexicanas is a publication of the Mexican Society of Cactology, published since 1955. The articles are under the Creative Commons license. The journal Cactáceas y Suculentas Mexicanas is registered in the following indices: cab Abstracts, Periodica and Latindex. El costo de suscripción a la revista es de $400.00 para(More)
The journal Cactáceas y Suculentas Mexicanas is a publication of the Mexican Society of Cactology, published since 1955. The articles are under the Creative Commons license. The journal Cactáceas y Suculentas Mexicanas is registered in the following indices: cab Abstracts, Periodica and Latindex. El costo de suscripción a la revista es de $400.00 para(More)
SEXTANT is an extravehicular activity (EVA) mission planner tool developed in MATLAB, which computes the most efficient path between waypoints across a planetary surface. The traverse efficiency can be optimized around path distance, time, or explorer energy consumption. The user can select waypoints and the time spent at each, and can visualize a 3D map of(More)