Fermentation of residual glycerol by Clostridium acetobutylicum ATCC 824 in pure and mixed cultures.

The aim of this research was to estimate the production of hydrogen, organic acids and alcohols by the strain of Clostridium acetobutylicum ATCC 824 using residual glycerol as a carbon source. The experiments were carried out in pure and mixed cultures in batch experiments. Three different sources of inocula for mixed culture were used.

[Workshops for cognitive stimulation adapted for elderly illiterate individuals with mild cognitive impairment].

The aim of this study was to assess the self-perception of memory in elderly illiterate with mild cognitive impairment, before and after workshops of cognitive stimulation adapted for illiterate individuals. The research was qualitative, held at the Health Unit of Taguatinga-DF, involving 63 elderly illiterate: 22 in the experimental group (EG), with 10 workshops; 21 in control group 1 (CG1), with 10 lectures; and 20 in the control group 2 (GC2), without intervention. Semi-structured interviews were carried on before and after the interventions, asking about memory status.