Sunday, February 1, 2015

 

 



Soy un nuevo usuario

Olvidé mi contraseña

Entrada usuarios

Lógica Matemáticas Astronomía y Astrofísica Física Química Ciencias de la Vida
Ciencias de la Tierra y Espacio Ciencias Agrarias Ciencias Médicas Ciencias Tecnológicas Antropología Demografía
Ciencias Económicas Geografía Historia Ciencias Jurídicas y Derecho Lingüística Pedagogía
Ciencia Política Psicología Artes y Letras Sociología Ética Filosofía


The effects of proton exposure on neurochemistry and behavior

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


  Descargar recurso

Detalles del recurso

Pertenece a: NASA Technical Reports Server (NTRS)  

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.

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: 28-oct-2014

Contacto:

Localización:


Otros recursos del mismo autor(es)

  1. Effects of Water Velocity and Trash Rack Architecture on Juvenile Fish Passage and Interactions: A Simulation Abstract.—Many resident and migratory fish species have experienced population declines due to modif...
  2. Spontaneous Sepsis and Increased Sensitivity to Oral This article cites 39 articles, 20 of which can be accessed free
  3. A Discussion of Cybersickness in Virtual Environments An important and troublesome problem with current virtual environment (VE) technology is the tendenc...
  4. EXTENDED ABSTRACT ONLY- DO NOT CITE Water shortages and a growing population in southern California have led to the diversion of water f...
  5. International Epidemiologic Databases to Evaluate AIDS and Design (NA-ACCORD) was created as part of the

Otros recursos de la misma colección

  1. Reduction in Hinode Mission Operations: Test Results and Implementation Plans No abstract available
  2. Simulated Time Lags of Hinode/XRT and SDO/AIA Lightcurves as an Indication of Loop Heating Scenario The precise nature of the heating mechanism in coronal loops is still a matter of enormous research....
  3. Application of Suomi-NPP Green Vegetation Fraction and NUCAPS for Improving Regional Numerical Weather Prediction The NASA SPoRT Center is working to incorporate SuomiNPP products into its research and transition a...
  4. Probability of US Heat Waves Affected by a Subseasonal Planetary Wave Pattern Heat waves are thought to result from subseasonal atmospheric variability. Atmospheric phenomena dri...
  5. An Intercomparison of Tropospheric Ozone Retrievals Derived from Two Aura Instruments and Measurements in Western North America in 2006 Two recently developed methods for quantifying tropospheric ozone abundances based on Aura data, the...

Valoración de los usuarios

No hay ninguna valoración para este recurso.Sea el primero en valorar este recurso.
 

Busque un recurso