RECURSIVE ALGORITHMS FOR THE ELIMINATION OF REDUNDANT PATHS IN SPATIAL LAG OPERATORS*

ABSTRACT. Recursive algorithms for the elimination of redundant paths in spatial lag operators are introduced. It is shown that these algorithms have superior computational properties in comparison with the cumbersome procedure proposed by Ross and Harary (1952). A rigorous definition of spatial lag operators is given, while a number of mathematical results and properties are derived. Theoretical and empirical results regarding the performance of the proposed algorithms are presented.     

A Ticking Clock? Preservation and Management of Greenland’s Archaeological Heritage in the Twenty-First Century

ABSTRACT

Evaluating the rate of deterioration at archaeological sites in the Arctic presents several challenges. In West Greenland, for example, increasing soil temperatures, perennial thaws, coastal erosion, storm surges, changing microbial communities, and pioneer plant species are observed as increasingly detrimental to the survival of organic archaeological deposits found scattered along the country’s littoral zones and extensive inner fjord systems. This article discusses recent efforts by the REMAINS of Greenland project for developing a standardised protocol that defines the archaeological state of preservation, the preservation conditions, and asset value of organic deposits. Special emphasis is given to the degradation of materials such as bone and wood that are historically observed to be well-preserved in Greenland but now currently at risk. The protocol provides a baseline for monitoring future changes and will assist archaeologists in Greenland with a procedure for documenting and predicting areas of increasing vulnerability due to a warming climate.     

Empowering marginal lifescapes: the heritage of crofters in between the past and the present

There is a rich, but unacknowledged, heritage of rural subalterns, crofters, in Scandinavia. A Swedish-Norwegian interdisciplinary research-network investigated the most prominent category – the remains of crofts. Due to industrialisation, urbanisation and the modern welfare state, the institution of crofting was abolished, and many crofters left for opportunities elsewhere. The welfare state transformed a landscape of living and working people into a one filled with relicts mostly from the nineteenth century. Although numerous and important to local citizens, these sites fall outside the authorised heritage discourse (AHD) in terms of both research and heritage management. This paper takes an environmental justice perspective to challenge the AHD. Three themes are in focus: (1) bringing out the history of a subaltern and marginalised group of people; (2) promoting crofts as heritage of importance to local citizens and demanding complex management due to the various historical narratives and risks; (3) considering the crofting landscapes in relation to the (economisation) framing of heritage in development processes, especially in relation to fair development in present rural communities.     

The role of charity in public relief, 1708–1871: Copenhagen as case

This article explores when and why charity vanished from public relief in Copenhagen and thereby differentiates itself from the traditional research field on welfare that focuses on studying the growth of taxation and social spending in the 19th century. This article reveals that charity was not solely a transfer of financial resources, but that charitable donations also entailed a cultural symbolism, which implied that charity was meant to support the local worthy poor. When the function of public relief underwent a transformation, especially at the beginning of the 19th century, the cultural symbolism of charity became incompatible with public relief. After the 1830s, the inhabitants of Copenhagen ceased to donate to public relief and instead donated charity to private philanthropy, which usually targeted the worthy poor for its help.     

L’autobiographie allemande du XVIIIe siècle,interprétée à la lumière de la sociologie de niklas Luhmann

With the help of Luhmann’s theory, this essay tries to define the connection between the boom of autobiographical writing in the late 18th century and the rise of the middle classes. Central to this, is his definition of “career”, with which he describes the individuals’ behaviour in the new functional bourgeois society. Strictly speaking, the individual gains personal and social identity, through his or her spoken or written autobiography as can be seen clearly in Jung-Stilling’s autobiography, which was published bit by bit. The individual hereby improves its prospects of social advancement. On the other hand, K. P. Moritz in hisAnton Reiser describes his hero’s life as the “career” of a failure whose hyperactive imagination interferes with the formation of his identity. Thus autobiographical writing in the 18th century shows itself as the literary autopoiesis of the authors’ concrete individuality.