Jeanine M Cunha

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  • J M Cunha
  • Estudios demográficos y urbanos
  • 1992
"Based on the 1980 census, the study attempts to provide a general overview of [intra-metropolitan migration in Brazil], using information regarding previous place of residence--data included for the first time in a Brazilian census--, which helps to establish the internal, intermunicipal, migratory flow. The article also presents certain aspects related(More)
Ultrasound-assisted (UA) and supercritical CO2 technologies (SCO2) were used to modify the chitin surface and, improve its adsorption characteristics regarding to cobalt. Chitin, before and after the treatments, was characterized by N2 adsorption isotherms (BET), infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and scanning electron microscopy (SEM).(More)
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