Different attempts have been made to answer Reich's question why the majority of those who are hungry don't steal and why the majority of those who are exploited don't strike. The two most influential approaches have been the ideological one and the gunman theory. The gunman theory seems to have the upper hand in that it not only explains many cases of successful oppression by a minority of a m...

Already in the eighties it was shown that the active form of vitamin D 3 , 1,25-dihydroxyvi-tamin D 3 [1,25(OH) 2 D 3 ], can inhibit the proliferation of melanoma cells 1 and stimulate the differentiation of myeloid leukemia cells. 2 The almost universal presence of the vitamin D receptor (VDR) and the presence of 1α-hydroxylase (CyP27B1) activity in non-classical tissues together with the anti...

China is a country that is arousing a large amount of interest as a new mega-market, as it opens itself to a market-orientated economy and expands at a remarkable rate. However, the influx of international investment, new business opportunities and advertising from overseas has seen Chinese consumers being exposed to potentially offensive advertising products and images. While some products and...

Expert systems exist for several decades now and have been provided with many tools, for almost any step of their development. However, if all these methods allow for an effective building of such systems, because knowledge itself is still to be acquired, they cannot act on it. Only experts of the domain are thus able to go beyond the process of designing an expert system and to actually evalua...