RESUMO
This overview presents the physical principles, design, measurement capabilities, and summary of planned operations of the autonomous detector of radiation of neutrons onboard rover at Mars (ADRON-RM) on the surface of Mars. ADRON-RM is a Russian project selected for the joint European Space Agency-Roscosmos ExoMars 2020 landing mission. A compact passive neutron spectrometer, ADRON-RM, was designed to study the abundance and distribution of water and neutron absorption elements (such as Cl, Fe, and others) in the martian subsurface along the path of the ExoMars rover. Key Words: Mars exploration-Surface-Neutron Spectroscopy-Water. Astrobiology 17, 585-594.
RESUMO
We studied new immunological and physicochemical properties of K-activin, immunotropic preparation from porcine skin isolated by the acetone method. The preparation restored the sensitivity of background rosette-forming cells in the spleen of thymectomized mice to the inhibitory effect of azathioprine in vivo and practically normalized serum thymic activity reduced in thymectomized mice. The molecular weight of proteins present in K-activin and previously detected by SDS-PAAG electrophoresis was determined by MALDI mass spectrometry
Assuntos
Fármacos Dermatológicos/farmacologia , Pele , Baço/efeitos dos fármacos , Adjuvantes Imunológicos/química , Adjuvantes Imunológicos/farmacologia , Animais , Azatioprina/metabolismo , Fármacos Dermatológicos/química , Fármacos Dermatológicos/imunologia , Humanos , Imunossupressores/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Pele/química , Pele/imunologia , Baço/citologia , SuínosRESUMO
Mitochondrial substrate-based preparations corrected disorders, caused by long-term exposure to abnormal gravitation vector in head-down tilt (hanging) test in rats. The preparations produced systemic and polyorgan protective effects consisting in correction of the blood prooxidant/antioxidant balance, energy metabolism in musculus soleus, and minimization of morphological changes in the liver and kidneys.
Assuntos
Metabolismo Energético , Gravitação , Decúbito Inclinado com Rebaixamento da Cabeça , Mitocôndrias/metabolismo , Animais , Antioxidantes/metabolismo , Metabolismo Energético/efeitos dos fármacos , Malatos/farmacologia , Masculino , Oxidantes/sangue , Ratos , Ratos Wistar , Ácido Succínico/farmacologiaRESUMO
After 55 days of mapping by the High Energy Neutron Detector onboard Mars Odyssey, we found deficits of high-energy neutrons in the southern highlands and northern lowlands of Mars. These deficits indicate that hydrogen is concentrated in the subsurface. Modeling suggests that water ice-rich layers that are tens of centimeters in thickness provide one possible fit to the data.