Heritage

This article examines the concepts, definitions, policies, and practices of heritage in a contemporary context. Within recent years, there have been significant shifts in our understandings and applications of heritage concepts and policies in the modern world. ‘Heritage’ emerged as a buzz word in international policy arenas in the 1980s and early 1990s, and has since weathered the vagaries of turbulent definitional and governance–nomenclature storms, as traditional debates about ‘what it is and what it is not’ reverberate around academia and state agencies alike. Policy and funding structures for heritage are determined by the classifications used to define them in various countries. Typically, reference is made to ‘built heritage’, ‘natural heritage’, and ‘intangible heritage’, loosely reflecting buildings, landscapes, and culture. Aspects of heritage are used by the cultural and tourism industries to add economic value, through heritage tourism sites, museums, and other activities. The cultural tourism product is often anchored around notions of heritage, and in postmodern, post-tourist societies, boundaries between culture, (travel) space, and identities are increasingly blurred. Issues of authenticity become important in the representation of heritage, and questions are asked about the validity of nostalgia versus realism. The role of heritage is examined in the context of identity formulation at individual and nation-state levels, and the political aspects of this are also discussed. Finally, heritage conservation is assessed through an examination of UNESCO’s World Heritage Site listing and protection strategy. In a changing world, new constructs of heritage, identity, authenticity, and representation will continue to emerge as meanings are constantly renegotiated over time and space.

Minimizing total weighted completion time in a proportionate flow shop

We study the special case of the m machine flow shop problem in which the processing time of each operation of job j is equal to pj; this variant of the flow shop problem is known as the proportionate flow shop problem. We show that for any number of machines and for any regular performance criterion we can restrict our search for an optimal schedule to permutation schedules. Moreover, we show that the problem of minimizing total weighted completion time is solvable in O(n2) time. © 1998 John Wiley & Sons, Ltd.

Impacts of wildlife on household food security and income in northeastern Tanzania

We evaluated the impacts of wildlife on household food security and income in three semi-arid villages adjacent to Lake Manyara National Park (LMNP) and Mkomazi Game Reserve (MGR) in Northeastern Tanzania. Survey data were collected using both household interviews and human-wildlife conflict related archive information from the village government offices. Crop destruction by wildlife influenced both household food security and cash income. Crop damage to households was, on average, 0.08 ton/annum, equivalent to two months household loss of food and reduced household cash income by 1.3%. A combination of measures is proposed as incentives for conservation. These include provision of economic incentives, soft loans to initiate non-farm (e.g., ecotourism, business enterprises) projects to ease dependency on natural resources, increasing of reserves buffer zones and fencing of reserves.