Slavery in the Contemporary World: An Examination of Modern Slavery in Africa

The paper examines slavery in the contemporary world with focus on examination of modern slavery in Africa. It underscored factors promoting slavery in the modern world, trends of modern slavery, causes of modern slavery in Africa, and consequences of modern slavery in Africa. The Marxian conflict theory was used as a guide and a background upon which the paper was anchored. From the point of view of the theory and available literature reviewed, the paper observed that factors such as population explosion of the post second world war, rapid economic change and the incorporation of the third world economies into the world economy in the guise of globalisation, and the widespread governmental corruption among others, are responsible for modern slavery in Africa and the world over. It revealed that forced labour, sex slavery, practice of debt bondage and trafficking in persons are all characteristics of modern slavery. The significance of this is enormous and antithetical to the development of the continent and humanity at large. The paper recommended that policies on human migration should be reviewed across borders, agencies established to tackle the menace of trafficking in persons should straightened so as to function effectively and efficiently, African countries should make frantic efforts in tackling the issue of corruption and over-dependence on advanced countries of the world. Finally, a radical change in mentality is advised of African citizens on migration

Comparison of phase structures and surface free energy values for the coatings synthesised from linear polyurethanes and from waterborne polyurethane cationomers

WAXS, DSC and AFM methods were employed to compare phase structures of the coatings obtained from waterborne polyurethane cationomers which had been synthesised in the reaction of some diisocyanates (MDI, IPDI, TDI and HDI) with polyoxyethylene glycols (M = 600 and 2,000) and butane1,4-diol or N-methyl- or N-butyldiethanolamine and 2,2,3,3-tetrafluoro-1,4-butanediol. The structures were also analysed of the coatings derived from linear polyurethanes which had been synthesised on the basis of similar raw materials. Better rigidity was found for generally amorphous cationomer coats. Changes were discussed in the surface free energy (SFE) values and in their components, as calculated independently with the use of the van Oss–Good and Owens–Wendt methods. Polyurethane coats turned out more hydrophobic as compared to cationomer ones. In both coat types, fluorine incorporated into cationomers contributed to lower SFE values: from 50 down to about 30 mJ/m2

Pourquoi le décorer ?Quelques observations sur le décor céramique en Afrique

Depuis le fameux ‘Why pots are decorated’ (David et al. 1988), le décor céramique est passé à l’arrière plan des préoccupations des archéologues africanistes, au profit d’autres aspects comme les techniques de fabrication ou les modes de consommation. A l’époque, l’article sonnait le glas d’un interminable débat sur le style dominé par la question du marquage des frontières sociales. En illustrant la dimension religieuse des pratiques ornementales, David et al. (1988) n’ouvraient pas seulement de nouvelles pistes d’interprétation: ils ramenaient également le décor parmi les autres éléments de la chaîne opératoire, dont les dimensions symboliques commençaient alors à être mises en avant par un nombre croissant d’anthropologues. Cette théorie semble aujourd’hui aussi problématique que celle qu’elle visait à remplacer. Le temps est venu de remettre le décor sur la sellette, mais dans une perspective plus large que par le passé. C’est ce que vise cet article, basé sur des observations ethnographiques effectuées à travers le continent. Dans un premier temps, quelques aspects classiques de l’analyse des décors sont évoqués, afin d’illustrer la complexité des pratiques ornementales et les dangers d’interprétations trop univoques. Dans un second temps, de nouvelles perspectives d’interprétation sont illustrées, liées à la spatialisation et aux dynamiques de constitution des mondes sociaux.SCOPUS: cp.jinfo:eu-repo/semantics/publishedArchaeological Research in Afric