Conflict over the provision of urban housing and the use of urban space has existed in most third world cities since their inception. Using the case of Peninsular Malaysia it is intended to examine how the question of housing provision addresses a wide variety of social, political and ideological meanings which link the masses of third world urban populations to the changing pace of development, the expansion of capitalism in the periphery, and to the activities of the state. Housing provides a useful point of departure when analysing development because it fulfils a variety of functions: its construction provides a vehicle for capital accumulation and it is an essential element in the reproduction of the labourforce; it provides shelter and focus for social or communal identity, and when part of state intervention it is a means of social control and furthering social cohesion, In this way housing is a focus for all the main components in the political economy of developmentcapital, labour and the state.The paper maps the way in which these three components, and the interests they pursue, are reflected in contemporary housing provision and policy in (Peninsular) Malaysia. The main components of the housing system are discussedwho provides accommodation, who controls and profits from its production (the role of capital), who is unable to obtain shelter and why (the role and response of labour) and how the conflict between these arenas is mediated by the state in the development and implementation of its policies. Here the state is seen to be a structure of power relations and authority, together with an institutional apparatus, that mediate and regulate the activities and interests of various social groups (see Dear, 1981; Dupuy and Truchil, 1979). Other factors, important in the discussion of urban housing in Malaysia, such as the development of political-bureaucratic structures (see Milne and Mauzy, 1978) and the ethnic dimension in urban growth (see McCee, 1967 and Lee Boon Thong, 1977), are not detailed here for reasons of space.To this end the paper is divided into four sections: 1) a conceptual outline of the housing system, 2 ) an examination of the private residential construction industry, 3) discussion on the response of the urban poor to the lack of housing the unconventional sector, and 4) the role of the state in housing provision.

"This article examines some of the links between the phenomena of urban migration and squatter settlements in the Third World city. This will be done by demonstrating that both are outcomes of fundamental social and political forces that have operated on these societies. Migration and squatting are placed in a context of the historical processes that led to the uneven development of Malaysia. The article offers some explanation for the origin of the inequalities observed in spatial structures--in this case urban housing--by focusing on one of the contributory factors, namely migration."

Stickland metabolism is a core facet of C. difficile physiology that likely plays a major role in host colonization. Here, we carefully delineate the effects of each amino acid on the growth of C. difficile with respect to the selenoenzymes d -proline reductase and glycine reductase.

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