32 research outputs found
The Negative Impacts of COVID-19 Containment Measures on South African Families - Overview and Recommendations
The World Health Organization (WHO) reported various pneumonia cases (‘Coronavirus Disease 2019’ [COVID-19]) on 31 December 2019 in
Wuhan City, China, which has spread to many countries, including South Africa. In response to this, the President of South Africa declared a state
of national disaster on 15th March 2020, followed by introducing various COVID-19 containment measures to minimize the spread of the virus.
This paper examines the negative impacts that COVID-19 containment measures may have had on the family as a unit of society and furthermore
provides recommendations to mitigate the impacts of these measures. It can be concluded that COVID-19 containment measures, specifically the
lockdown restrictions, would yield both short-term and long-term impacts on proper family functioning. Several families in South Africa have been
impacted financially due to the closure of business which led to the temporary/ permanent unemployment of some breadwinners in the families.
This also has had a cascading impact on the food security of families and their ability to afford other basic necessities. Distress as a result of
financial challenges or failure to provide for the family alongside spending much time locked down together as a family has also led to violence in
the family. This was further exacerbated by the fact that the victims were stuck with the abusers and some could not report or find help due to the
restricted movements. Furthermore, since most institutions predominantly moved learning online, results indicated that the lockdown restrictions
affected the ability of some individuals especially those from poor families to access formal education during the period due to the lack of digital
devices and internet facilities. In order to mitigate the impacts of the COVID-19 containment measures on the family, there is a need for
collaborative efforts at intrapersonal, interpersonal, institutional, community and policy levels using the ecological framework
Eficiência simbiótica de estirpes de Cupriavidus necator tolerantes a zinco, cádmio, cobre e chumbo
O objetivo deste trabalho foi avaliar a tolerância de estirpes de Cupriavidus necator a zinco, cádmio, cobre e chumbo, além de determinar a eficiência simbiótica das estirpes mais tolerantes em associação a espécies leguminosas com potencial para revegetação. A tolerância foi testada em meio LB, suplementado com 2,5; 5,0; 7,5; 10; 12,5 e 15 mmol L-1 de ZnSO4.7H2O, CdSO4.8H2O, CuSO4.5H2O e PbCl2, respectivamente, em comparação ao controle sem adição de metal. Determinou-se a eficiência simbiótica das quatro estirpes de C. necator mais tolerantes aos metais avaliados (UFLA02-71, UFLA02-73, UFLA01-659 e UFLA01-663), as quais foram inoculadas nas espécies: Leucaena leucocephala, Enterolobium contortisiliquum, Acacia mangium, Mimosa caesalpiniifolia, M. pudica, M. pigra e M. acutistipula. Em vasos com solos, avaliaram-se L. leucocephala, M. pudica e M. caesalpiniifolia e as estirpes UFLA01-659 e UFLA02-71, selecionadas na avaliação de eficiência simbiótica. A estirpe UFLA02-71 proporcionou incrementos de matéria seca da parte aérea de 870% em M. caesalpiniifolia, enquanto que UFLA01-659 proporcionou 885% em M. pudica e 924% em L. leucocephala. As estirpes UFLA01-659 e UFLA02-71, além da alta tolerância a metais pesados, apresentaram eficiência em fixar nitrogênio, em simbiose com essas leguminosas, em solos com rizóbios nativos capazes de nodulá-las, e devem ser avaliadas quanto ao seu potencial de utilização em programas de recuperação de áreas degradadas