Results 91 to 100 of about 61,701 (212)
Total electron yields and stopping power of protons colliding with NaCl-type insulator surfaces [PDF]
, 2007 In this paper we report electron yields and stopping power of protons colliding with surfaces of NaCl-type insulators formed with the alkali-metal ions Li+, Na+, K+, and Rb+ and the halides F−, Cl−, Br−, and I−.
García, Andrea Judith +1 more
core +1 more source
Model calculation for energy loss in ion-surface collisions. [PDF]
, 2003 The so-called local plasma approximation is generalized to deal with projectiles colliding with surfaces of amorphous solids and with a specific crystalline structure (plannar channeling).
Gravielle, Maria Silvia +1 more
core +1 more source
APRENDIZAGEM SIGNIFICATIVA, OBJETOS DE APRENDIZAGEM E O ENSINO DE ASTRONOMIA
, 2020 Esse artigo aborda o uso dos objetos de aprendizagem no ensino de Astronomia, em busca de promover uma aprendizagem significativa, dado que na maioria das vezes seu ensino ocorre de forma estanque e sem conexao com a realidade.
M. R. Voelzke, J. Macêdo
semanticscholar +1 more source
, 2020 El libro colectivo, coordinado por Juan Pablo Villa-nueva, Johanna Broda y Masato Sakai (academicos de la Universidad Nacional Mayor de San Marcos, Peru, La Universidad Nacional Autonoma de Mexico y la Universidad Nacional de Yamagata, Japon, res ...
Pérez Gerardo, Diana Roselly
semanticscholar +1 more source
Temporal variability of waves at the proton cyclotron frequency upstream from Mars: Implications for Mars distant hydrogen exosphere [PDF]
, 2013 We report on the temporal variability of the occurrence of waves at the local proton cyclotron frequency upstream from the Martian bow shock from Mars Global Surveyor observations during the first aerobraking and science phasing orbit periods ...
Bertucci, Cesar +8 more
core +4 more sources
, 2020 Compreender a Astronomia e mais do que olhar para o conhecimento atual, e tambem entender como esse conhecimento se desenvolveu. Por isso a Historia da Astronomia (H-Astro) e imprescindivel para a compreensao da construcao do conhecimento pelos sujeitos.
Adelves de Sousa Almeida +1 more
semanticscholar +1 more source
, 2018 Qué observó en el cielo nocturno un rosarino aficionado a la astronomía y por qué su observación causó gran revuelo, recogido por los medios, entre los astrónomos profesionales. (Artículo de divulgación)Fil: Reynoso, Estela Marta.
Reynoso, Estela Marta
core
Toward a renewed Galactic Cepheid distance scale from Gaia and optical interferometry [PDF]
, 2017 Through an innovative combination of multiple observing techniques and mod- eling, we are assembling a comprehensive understanding of the pulsation and close environment of Cepheids.
Anderson, Richard I. +11 more
core +1 more source
UV Radiation of the Young Sun and its Implications for Life in the Solar System [PDF]
, 2013 UV radiation is thought to have played an important role in the origin of life on Earth. To estimate these levels of UV radiation, we computed the UVC uxes from HST/STIS and IUE spectra of the young solar analogs κ 1 Cet and χ 1 Ori.
Abrevaya, Ximena Celeste +5 more
core
Aporte de la Astronomía y las Matemáticas a la Sociedad en la Edad Antigua [PDF]
, 2017 Eduardo Gabriel Rivel Pizarro +1 more
openalex +1 more source