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21.
The notion of heredity of degenerative constitutions of human beings contributed in the nineteenth century to the fear for deterioration of the human race and in the twentieth century to attempts by several Western Countries, particularly Germany, to improve the inborn qualities of their populations by eugenic measures. In the years following World War II, the term eugenics was eradicated from medicine. The qualification degenerative disappeared from genetics and psychiatry but remained in use to denote decay of tissues and cells. The adjective neurodegenerative came in vogue in neurology and was mostly applied to brain diseases. Definitions in the literature indicate that neurodegenerative diseases are considered as to be age related, incurable, and largely untreatable chronic progressive diseases of the central nervous system. Scrutiny of available data shows that the notion concerns an ill-defined group of genetic and idiopathic disorders. Genetic central nervous system diseases may become manifest at all ages and are accessible for symptomatic treatment. Investigations of animal models suggest that not all neurodegenerative diseases are inherently incurable. Alternatives for the terms neurodegenerative and degenerative are available.  相似文献   
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Abstract

South Africa's railway and harbours operator (SAR&;H) was the arch promoter of overseas tourism to South Africa for thirty years after Union in 1910. To its package tours for independent inbound tourists, the SAR&;H added exclusive port-to-port rail trips across South Africa by partnering with overseas cruise ship operators. Whereas the European market was a mainstay, the more distant North American market only became accessible in relation to lengthy round-the-world cruises. Between 1926 and 1939 approximately fifty long-distance luxury trains met thirty-one cruise liners to transport some 5,000 wealthy tourists through various inland scenic, cultural and wildlife attractions in southern Africa. Port calls by visiting cruise liners created their own spectacle and stir. Eventually more cruise passengers elected to stay on board ship at the end of long ocean voyages, elite visitors took cross-country flights to increase the novelty of travel, and this first period of South African sea-rail tourism came to a close.  相似文献   
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African Archaeological Review - This paper reports on the steps taken to mitigate the impact of the Metolong Dam (Lesotho) on the rock art present within the catchment of its associated reservoir....  相似文献   
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The court sites in south‐west Norway are a key material for discussing aspects of Roman period archaeology. So far, the Stand der Forschung is not satisfactory, mainly because the excavations that took place in the middle of the 20th century have not so far led to more systematic and synthesising studies being undertaken. It is argued in the article that the court sites can be considered indicative of central settlements in the Roman period, and that the sites were multifunctional. They probably served as gathering places for social activities like games, things and ritual, as production sites, and maybe as temporary accommodation for chieftains' retinues playing a role in intra‐Norwegian or perhaps Scandinavian military confrontations. The latter aspect is considered in some detail in the article, and it is suggested that the court site organisation is indicative of a Roman period (petty) south‐west Norwegian kingdom, and that the bog offering in Illerup place A might have originated from a south‐west Norwegian army defeated by ‘Danish’ forces. On an international level the court sites are an unparalleled type of archaeological monument reflecting social and functional aspects of general interest for European archaeology.  相似文献   
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The commissioning by South Africa’s Department of Water and Sanitation of a new and higher wall for the Clanwilliam Dam will increase dam storage and provide additional water for emerging and existing commercial farmers. But there is a cost to South African heritage. The raising of the wall will flood 27 rock art sites as well as other archaeological and historical resources. In partial mitigation of this impact on heritage the removal of particular pieces of rock art was approved by Heritage Western Cape, the provincial heritage agency. This report focuses on the removal process and techniques used to cut out three pieces of rock art under the management of PGS Heritage between 18 April 2016 and 7 May 2016 from the sites designated CDE02 and CDW10. Publication of the techniques used and the procedures followed will add to the sparse literature on rock art removal and increase the accessibility and availability of information about the removed stones.  相似文献   
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