1) La descarga del recurso depende de la página de origen
2) Para poder descargar el recurso, es necesario ser usuario registrado en Universia


Opción 1: Descargar recurso

Detalles del recurso

Descripción

Future space missions will involve long-term travel beyond the magnetic field of the Earth, where astronauts will be exposed to radiation hazards such as those that arise from galactic cosmic rays. Galactic cosmic rays are composed of protons, alpha particles, and particles of high energy and charge (HZE particles). Research by our group has shown that exposure to HZE particles, primarily 600 MeV/n and 1 GeV/n 56Fe, can produce significant alterations in brain neurochemistry and behavior. However, given that protons can make up a significant portion of the radiation spectrum, it is important to study their effects on neural functioning and on related performance. Therefore, these studies examined the effects of exposure to proton irradiation on neurochemical and behavioral endpoints, including dopaminergic functioning, amphetamine-induced conditioned taste aversion learning, and spatial learning and memory as measured by the Morris water maze. Male Sprague-Dawley rats received a dose of 0, 1.5, 3.0 or 4.0 Gy of 250 MeV protons at Loma Linda University and were tested in the different behavioral tests at various times following exposure. Results showed that there was no effect of proton irradiation at any dose on any of the endpoints measured. Therefore, there is a contrast between the insignificant effects of high dose proton exposure and the dramatic effectiveness of low dose (<0.1 Gy) exposures to 56Fe particles on both neurochemical and behavioral endpoints. Published by Elsevier Ltd on behalf of COSPAR.

Pertenece a

NASA Technical Reports Server (NTRS)  

Autor(es)

Rabin, B. M. -  Joseph, J. A. -  Szprengiel, A. -  Shukitt -  Hale, B. -  Pluhar, J. - 

Id.: 43176300

Versión: 1.0

Estado: Final

Tipo:  text - 

Palabras claveBehavioral Sciences - 

Cobertura:  Unclassified, Unlimited, Publicly available - 

Tipo de recurso: Advances in space research : the official journal of the Committee on Space Research (COSPAR); Volume 33; 8; 1334-9  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: Copyright

Formatos:  text - 

Requerimientos técnicos:  Browser: Any - 

Relación: [IsBasedOn] Other Sources

Fecha de contribución: 24-mar-2015

Contacto:

Localización:

Otros recursos del mismo autor(es)

  1. NOTICE AND SIGNATURE PAGE Approved for public release; distribution unlimited. See additional restrictions described on inside...
  2. The natural history of human papillomavirus type 16 capsid antibodies among a cohort of university women Analogous to the epidemiology of different types of human papillomaviruses (HPVs), variants of a sin...
  3. Studies of Pancreatic Function in Sjogren's Syndrome SJOGREN'S SYNDROME IS A CHRONIC, benign, systemic disorder of unknown etiology, involving princ...
  4. 146 PUBLICATIONS 5,837 CITATIONS SEE PROFILE All in-text references underlined in blue are linked to publications on ResearchGate, letting you ac...
  5. Discovering States and Transformations in Image Collections Objects in visual scenes come in a rich variety of trans-formed states. A few classes of transformat...

Otros recursos de la misma colección

  1. A Reliability Model for Ni-BaTiO3-Based (BME) Ceramic Capacitors The evaluation of multilayer ceramic capacitors (MLCCs) with base-metal electrodes (BMEs) for potent...
  2. Arduino-Raspberry Pi: Hobbyist Hardware and Radiation Total Dose Degradation This presentation covers top-level total ionizing dose (TID) testing and evaluation of commercial Cu...
  3. Relative Radiation Risk Reduction for Small Spacecraft and New Designers Presentation for the NASA Electronic Parts and Packaging (NEPP) Small Mission Workshop.
  4. Compendium of Single Event Effects, Total Ionizing Dose, and Displacement Damage for Candidate Spacecraft Electronics for NASA We present results and analysis investigating the effects of radiation on a variety of candidate spa...
  5. Compendium of Single Event Effects, Total Ionizing Dose, and Displacement Damage for Candidate Spacecraft Electronics for NASA We present results and analysis investigating the effects of radiation on a variety of candidate spa...

Aviso de cookies: Usamos cookies propias y de terceros para mejorar nuestros servicios, para análisis estadístico y para mostrarle publicidad. Si continua navegando consideramos que acepta su uso en los términos establecidos en la Política de cookies.