Rethinking ‘the Human’ in Memory of Fay Gale (AO)

In 1972, the late Fay Gale (AO) published a characteristically self‐styled book titled Urban Aborigines. It launched a richly diverse career that delivered an exceptional legacy to the academic discipline of geography, aboriginal justice, university administration, and women's professional advancement. This article, based on a 2010 lecture in her honour, takes up Fay's intellectual contribution to one of these fields. It pursues her critical interest in the clash of indigenous/settler cultures in Australia through a novel account of the notorious head‐measuring practices of 19th century racial craniometry. Probing the Western premise that ‘mind’ is the assured marker of human distinction from nature, the article explores a question of fundamental contemporary relevance for Australian audiences and others across the globe: are there fresh prospects for reconciling settler and indigenous, as well as ‘green’ and ‘growth’, values if the conceit of this distinction can be overcome? This question is provoked from a peculiarly southern perspective in the spirit of the insistently geographic project that was Urban Aborigines.     

Conceptual and practical issues in the detection of local disease clusters: a study of mortality in Hamilton, Ontario

Recent advances in local spatial statistics and operational computing capacity have led to growing interest in the detection of disease clusters for public health surveillance and for improving understanding of disease pathogenesis. Although conceptual reviews and applied examples have appeared in the literature, few studies have addressed the connection between conceptual and practical issues that confront researchers interested in using local statistics to detect disease clusters. Here we review recent literature on the use of local statistics for cluster assessment and focus on the practical issue of assigning correct geographic coordinates. The process of assigning geographic coordinates to an address or postal code, known as ‘geocoding’, is a necessary step in conducting smallarea health analyses. With a study of mortality data from Hamilton, Ontario, we illustrate inaccuracies that may be encountered when using Statistics Canada postal code conversion files. Using the Moran's I and Getis‐Ord Gi and Gi* local spatial statistics to identify significant mortality clusters or ‘hot spots’, we demonstrate that small geocoding errors, even those that affect less than one percent of a total dataset, can have a discernible impact on analytic results. To assist other researchers, we supply guidelines to minimize error introduced by geocoding. These results emphasize the importance of accurate geocoding in local health analyses. Les avancées récentes en statistiques spatiales localisées et en capacité informatique opérationnelle ont conduit à un intérêt croissant dans la détection de foyers de maladies pour fins de surveillance de santé publique, et dans l'approfondissement de la compréhension de leur pathogénèse. Bien que des revues conceptuelles et des exemples concrets aient été publiés dans la littérature, peu d'études ont adressé le lien entre les problèmes conceptuels et pratiques auxquels sont confrontés les chercheurs intéressés à utiliser les statistiques locales pour détecter les foyers de maladies. Nous revoyons ici la littérature récente sur l'utilisation de statistiques locales dans l'évaluation de foyers et focalisons sur le problème pratique d'assigner des coordonnées géographiques correctes. Le procédé d'assigner des coordonnées géographiques à une adresse ou à un code postal, nommé‘géocodage’, est une étape nécessaire dans la conduite d'analyses de santéà petite échelle. À l'aide d'une étude sur des données de mortalitéà Hamilton, en Ontario, nous illustrons que des inexactitudes peuvent être rencontrées lorsque les fichiers de codes postaux et de conversion de Statistique Canada sont utilisés. En utilisant les statistiques spatiales localisées I de Moran, Gi and Gi* de Getis et Ord pour identifier des foyers de mortalité significatifs ou des ‘points chauds’, nous démontrons que de petites erreurs de géocodage, même celles n'affectant moins qu'un pour cent de la base de données, peuvent avoir un impact discernable sur les résultats analytiques. Afin d'aider d'autres chercheurs, nous fournissons des recommandations pour minimiser les erreurs introduites par le géocodage. Ces résultats soulignent l'importance d'un géocodage exact dans les analyses de santé locale.     

FIRST NATIONS ECONOMIC DEVELOPMENT: A CONTINGENCY PERSPECTIVE

In the first part of this paper, the economic development objectives, strategies, and structures adopted by First Nations of Canada are examined, and seven significant characteristics are identified. In the second, current theories on economic development are considered, and a contingency perspective is proposed that addresses First Nations economic development within the global economic system. In the third part, the forestry-related development activities of a particular group of First Nations -the Meadow Lake Tribal Council - and its joint venture with a major pulp firm Millar Western, Ltd., are described, and the relevance of the proposed contingency perspective is considered. The paper concludes with comments about the potential for the contingency perspective as a theoretical framework for the economic development activities of the First Nations in Canada in a post-Fordist economy.     

Why Vietnam? Postrevisionist Answers and a Neorealist Suggestion

Review in this Article
Andrew J. Rotter. The Path to Vietnam: Origins of the American Commitment to Southeast Asia . Ithaca
Lloyd C. Gardner. Approaching Vietnam: From World War II through Dienbienphu, 1941–1954 . New York     

Evolution of porosity, permeability and fluid pressure in dilatant faults post-failure: implications for fluid flow and mineralization

Mineralization of brittle fault zones is associated with sudden dilation, and the corresponding changes in porosity, permeability and fluid pressure, that occur during fault slip events. The resulting fluid pressure gradients cause fluid to flow into and along the fault until it is sealed. The volume of fluid that can pass through the deforming region depends on the degree of dilation, the porosity and permeability of the fault and wall rocks, and the rate of fault sealing. A numerical model representing a steep fault cutting through a horizontal seal is used to investigate patterns of fluid flow following a dilatant fault slip event. The model is initialized with porosity, permeability and fluid pressure representing the static mechanical state of the system immediately after such an event. Fault sealing is represented by a specified evolution of porosity, coupled to changes in permeability and fluid pressure, with the rate of porosity reduction being constrained by independent estimates of the rate of fault sealing by pressure solution. The general pattern of fluid flow predicted by the model is of initial flow into the fault from all directions, followed by upward flow driven by overpressure beneath the seal. The integrated fluid flux through the fault after a single failure event is insufficient to account for observed mineralization in faults; mineralization would require multiple fault slip events. Downward flow is predicted if the wall rocks below the seal are less permeable than those above. This phenomenon could at least partially explain the occurrence of uranium deposits in reactivated basement faults that cross an unconformity between relatively impermeable basement and overlying sedimentary rocks.     

Authoritarianism and the securitization of development in Africa

Debate on the ‘securitization’ of aid and international development since 9/11 has been anchored in two key claims: that the phenomenon has been driven and imposed by western governments and that this is wholly unwelcome and deleterious for those in Africa and elsewhere in the developing world. This article challenges both of these assumptions by demonstrating how a range of African regimes have not only benefited from this dispensation but have also actively encouraged and shaped it, even incorporating it into their own militarized state‐building projects. Drawing on the cases of Chad, Ethiopia, Uganda and Rwanda—four semi‐authoritarian polities which have been sustained by the securitization trend—we argue that these developments have not been an accidental by‐product of the global ‘war on terror’. Instead, we contend, they have been the result of a deliberate set of choices and policy decisions by these African governments as part of a broader ‘illiberal state‐building’ agenda. In delineating this argument we outline four major strategies employed by these regimes in this regard: ‘playing the proxy’; simultaneous ‘socialization’ of development policy and ‘privatization’ of security affairs; making donors complicit in de facto regional security arrangements; and constructing regime ‘enemies’ as broader, international threats.