Deformation of an elastic layer coupling in different ways to a base due to a very long vertical strike-slip dislocation

The closed-form analytic expressions for the displacement and stresses at any point of an elastic layer lying over a base due to a very long vertical strike-slip dislocation are obtained. The interface between the layer and the base is assumed to be either ‘smooth-rigid’ or ‘rough-rigid’ or ‘welded’. The variations of displacement and stresses with the horizontal distance from the fault for different types of coupling of the layer with the base have been studied. It is found that the displacement for ‘welded interface’ lies between the displacements due to ‘smooth rigid’ and ‘rough-rigid’ interfaces for different positions of the observer and different values of the ratio of rigidities of the layer and half-space.     

Key barriers to community cohesion: views from residents of 20 London deprived neighbourhoods

The notion of community has been central to the political project of renewal of New Labour in the UK. The paper explores how the discourses of community are framed within New Labour and discusses these in the light of the results from research which focuses on how people within urban deprived areas construct their community. It draws upon the results of one part of a larger research project (the ‘Well London’ programme) which aimed to capture the views of residents from 20 disadvantaged neighbourhoods throughout London using an innovative qualitative method known as the ‘World Café’. Our results show the centrality of young people to the development of cohesive communities, the importance of building informal relationships between residents alongside encouraging greater participation to policy making, and the need to see these places as fragile and temporary locations but with considerable social strengths. Government policies are only partially addressing these issues. They pay greater attention to formally encouraging citizens to become more involved in policy making, largely ignore the contribution young people could make to the community cohesion agenda, and weakly define the shared norms and values that are crucial in building cohesive communities. Thus, the conclusion is that whilst an emphasis of the government on ‘community’ is to be welcome, more needs to be done in terms of considering the ‘voices’ of the community as well as enabling communities to determine and act upon their priorities.     

‘Think globally,act locally’: sustainable communities,modernity and development

This article sets out to explore the political relationship between the global and the local through the prism of the sustainable development. The ideal of sustainable communities is explored in the context of evolving political fictions that define alternative conceptions of modernity. While the article uses Ireland (reputedly the most globalised society in the world) as a microcosm of development, the context is firmly located within the wider sphere of European and planetary politics. It is argued that the ideal of sustainable communities offers the opportunity of reviving the civic republican tradition of democracy (the Ancient Greek agora) as a metaphor for the public sphere in the conditions of late modern society. The agora in Ancient Greece provided a site of political assembly, based upon participation (citizens’ engagement in decision-making) and deliberation (a process of reached argument). Today, concepts such as ‘participatory civility’ and ‘discursive democracy’ seek to revive these classical ideals, as the basis for building sustainable communities in a transforming modernity that searches for a new logic of development.     

Re-viewing the Entrapment controversy: Megaprojection, (mis)representation and postcolonial performance

Becoming the tallest building in the world in the mid-1990s, the Petronas Towers was the centre piece of an image of national progress and development that Malaysian authorities sought to project internationally. The release of Fox Movies' Entrapment in Malaysia in May 1999 provoked political outrage and popular disappointment at the way in which the Petronas Towers in Kuala Lumpur had been spliced alongside riverside ‘slums’ filmed in the town of Malacca some 150 km away. This paper provides a critical reading of the spliced scene in the movie. At one level, the angry response of the Malaysian Prime Minister, Dr Mahathir Mohamad, to the scene diagnoses a geopolitics of asymmetrical representational power. However, I show how Mahathir's criticism of Entrapment in Malaysia was as much a defence of domestic political legitimacy (and national economic investibility) as it was ‘opposition’ or ‘resistance’ to hegemonic ‘Western’ (mis)representation. In addition, while the material and symbolic work of reimaging Kuala Lumpur had sought to negate (neo)orientalist imaginings of ‘Asian’ cities, the controversial scene rendered visible environmental ‘underdevelopment’ that has no place in a modern (vision of) Malaysia. Entrapment thus performed something in inducing Malaysian cities and citizens to ‘clean up’ their act, to practice ‘fully developed’ ways of seeing, being and being seen. This revised version was published online in August 2006 with corrections to the Cover Date.     

Problems associated with tourism development in Southern Africa: The case of Transfrontier Conservation Areas

Tourism in Southern Africa is synonymous with the wildlife safari. In the post-colonial era the establishment of so-called ‘peaceparks’ that straddle the borders of states has come to be seen as a key not only to increasing tourism in the Southern African region, but also to the modernizing of conservation policies and the development of rural economies. This paper focuses on the global and continental presence of transfrontier conservation areas, the link between conservation and tourism development, and the current factors that constrain and influence the realization of an ‘African Dream’ — ‘establishment of the greatest animal kingdom’. The unstable political situation in Zimbabwe and how this negatively affects wildlife conservation and tourism in the Gonarezhou part of the Greater Limpopo Transfrontier Park, serves as a case study. This revised version was published online in August 2006 with corrections to the Cover Date.     

Making ends meet, in the household and on the planet

Policy-making in relation to sustainable development is usually at the national (or, in relation to climate change, the global) level, yet the consumption it seeks to modify takes place at the household level. If households all ‘made ends meet’ in the same way then the much-relied upon notion of per capita consumption would be valid and we could rely on ‘top-down’ modelling to guide policy. Cultural Theory, however, predicts that there are five socially viable ways of making ends meet, and that all of them will be found (in varying proportions) within any nation. This prediction has been tested on a sample of 220 British households and shown to be well supported. Top-down modelling, it is argued, has to give way to a constructive interplay between the reflexive policy-maker and a plurally responsive citizenry. This revised version was published online in August 2006 with corrections to the Cover Date.     

Contesting Chinatown: Place-making and the Emergence of ‘Ethnoburbia’ in Brisbane,Australia

This paper juxtaposes the actual areas of settlement and settlement activities of Chinese migrants in Brisbane’s southern suburbs since the mid-1980s, with the concomitant, ‘government planned’ construction of the city’s Chinatown as an ‘exotic,’ ‘ethnic,’ and ‘cosmopolitan’ landmark. It argues that while the latter, as with Chinatowns in other Australian and world cities, has continued to appropriate the symbols of so-called ‘Chineseness’ to sell the locale to non-Chinese, the former, in recalling the notion of ‘ethnoburbia,’ significantly evinces actual Chinese migrants’ agency and role in place-making. In the process, these migrants have not only established a local, ethnically meaningful environment, but also challenged the still current metonymic Western image of the Chinese as preferring life in ‘ethnic’ urban enclaves that had its origin from early Chinese settlement and fundamentally detached from the lives of other ethnic groups per se. Indeed greater recognition and comprehension of such locales may go a long way to illustrate that many Chinese living in Australia today do not fit the territorial, place-based identity often associated with them in the imagination of mainstream society.     

Locating diversity: race,nativity and place in health disparities research

Nancy Krieger has been one of the leading voices in documenting how social ‘axes of difference’, including race, ethnicity and class make people vulnerable to poor health and limit their access to effective health care. We discuss the importance of ‘locating’ diversity in health inequalities research. This includes critically dissecting racial and ethnic axes into more nuanced social categories that incorporate differences based on immigration and other factors. It also involves considering how diverse population groups vary in their perception and use of space for health-related activities and exposures. Examples relating to immigrant populations’ health and access to health care are discussed.     

A comparative analysis of several vulnerability concepts

A comparative analysis of six vulnerability models aims to identify differences and similarities between several approaches towards understanding vulnerability. The analysis yields a set of characteristics for explaining the condition of vulnerability (multiple contexts, multiple dimensions, temporal variability, multiple scales and scale-interdependency). In addition, ‘adaptation’ and ‘adaptive capacity’ are identified as key elements of vulnerability. The results of the analysis are put into a wider context not only of vulnerability but also of resilience and risk research. It is demonstrated that ‘adaptation’ and ‘adaptive capacity’ serve as hinges not only for conceptualising vulnerability but between ‘vulnerability’ and ‘resilience’ alike. Based on the results of the comparative analysis, a model of vulnerability focussing on the household and community scale is developed, which displays the key findings of this work.     

New political violence in Africa – Secular sectarianism in Sierra Leone

Mary Douglas (1993) has indicated some of the shared concerns that keep voluntary enclaves together as ‘social movements’. The present paper describes a rather different kind of enclave politics, being concerned with the ‘new violence’ of groups enclaved by social exclusion and force. The paper focuses on the emergence and subsequent development of dissidents in the civil war in Sierra Leone. The RUF was at the outset a tiny but conventional guerrilla force, modelled on one of the militias in the Liberian civil war, and seeking to overthrow a decayed neo-patrimonial ‘one-party’ regime. Gaining little popular support, its members became marooned in forested isolation on the Liberia-Sierra Leone border. Recruits were mainly school children seized by force and ‘converted’ through having to take part in atrocities against rural civilians. Unable to return to the larger society on pain of summary execution, captives have had little option but to adjust to the political fantasies of a violent and unstable leadership. They were enclaved by force. Indicating the predictive strength of Douglas' arguments about the cultural dynamics of the enclave, the subsequent atrocity-drenched story of the RUF suggests that it is not the content of belief that determines institutional culture but vice versa. To survive, the enforced enclave develops the concerns of the classic ‘sect’ - a doctrinaire ‘rationality’ (expressed in crude acts of ‘subtractive’ violence), rejection of magic, decision making by lots, preoccupation with defection, otiose leadership style. If the rest of the world is to come to terms with violent enclave organizations such as the RUF and Algerian GIA it may have to pay more careful attention to the way enclave institutions think. They may not respond ‘rationally’ to the kinds of incentives offered by mainstream groups organised around hierarchical and/or individualist systems of social accountability. This revised version was published online in August 2006 with corrections to the Cover Date.     

A model for multiphase flow and transport in porous media including a phenomenological approach to account for deformation—a model concept and its validation within a code intercomparison study

Multiphase flow processes in unsaturated cohesive soils are often affected by deformation due to swelling and shrinking as a result of varying water contents. This paper presents a model concept which is denoted ‘phenomenological’ in terms of the processes responsible for soil deformation, since the effects of deformation on flow and transport are only considered by constitutive relations that allow an adaptation of the hydraulic properties. This new model is validated in a detailed intercomparison study with two state-of-the-art models that are capable of explicitly describing the processes relevant for the deformation. A ‘numerical experiment’ with a state-of-the-art reference model is used to produce ‘measurement data’ for an inverse-modelling-based estimation of the model input parameters for the phenomenological concept.     

Nagaur — tertiary interface under Punjab-Haryana semi-desertic plains in western India

The subsurface Nagaur Basin in northwest Haryana and southwest Punjab hosts evaporite sequence, conformably overlain by Nagaur red beds and grey beds. A polymictic conglomerate intervenes the Nagaur sequence and the overlying Tertiary sequence. The focus is on the new finds of (i) distinctive ‘grey beds’ overlying ubiquitous red beds, (ii) ‘Malout conglomerate and grit’ horizon (Palaeocene-Miocene) marking an unconformity over the Nagaur Group (early Cambrian) and (iii) ‘entrapped gas and dried-up leaves/carbonaceous flakes’ in the conglomerate unit and succeeding Tertiary rocks. Palaeoenvironmental significance has been discussed. The Nagaur ‘red beds’ has been likened to ‘continental red beds’ of Schreiber (1978) and ‘reworked red beds’ of Krynine (1949). The ‘grey beds’ are channel fillings, fresh material having been derived from fresh cuttings by streams/rivers following structural grains in the Aravalli landscape where the interfluves provided weathered (oxidised) materials for the red beds. Association of continental red beds and grey beds is known in the Newark Series (Triassic) of the Eastern United States and the Keweenawan ‘late Precambrian’ of the Lake Superior region.     

The impact of a storm surge on business establishments in the Houston MSA

This paper examines the possible storm surge damage from a major hurricane to hit the Houston Metropolitan Statistical Area (MSA.) Using storm surge analysis on a unique data set compiled from the Texas Workforce Commission (QCEW), the paper estimates the expected industry-level damage for each county in the Houston MSA. The advantages of using GIS to analyze the expected storm surge damage estimation is that it provides an accurate estimation of the number of affected employees and probable wages losses, by industry and county, based on QCEW data. The results indicate that the ‘Basic Chemical Manufacturing’ and ‘Oil and Gas Extraction’ industries incur the highest employee and payroll losses while the ‘Restaurants and Eateries’ has the largest establishment damage if a major hurricane were to hit the Houston MSA.     

High-potassium intrusives from southeastern Papua

This paper presents petrographic, major element, and trace element data from high-potassium ‘shoshonitic’ rocks of Miocene age which intrude Eocene submarine basalts in southeastern Papua. The intrusives fall into two distinct but overlapping groups, a ‘near-saturated’ group ranging from gabbro to syenite with regular petrographic and chemical variations, which is either slightly nepheline normative or quartz normative, and a nepheline normative ‘undersaturated’ group which shows wide variations in texture, modal mineralogy, and chemistry. Biotite-bearing pyroxenites are associated with the intrusives but their genetic relationship to the intrusives is unknown. The intrusion of shoshonitic rocks at the beginning of a period of major tectonic activity in southeastern Papua shows that high-potassium magmas can be generated in areas of active tectonism and may form part of the island arc ‘magmatic’ association.     

Urban tourism and small tourism enterprise development in Johannesburg: The case of township tourism

Urban tourism is a focus of vibrant research in developed countries. In this paper the focus is upon an element of urban tourism in a developing world city, viz., Johannesburg. Specific attention centers on an analysis of the role of small enterprise development in urban tourism. The major issues surrounding the development of small tourism businesses in two of Johannesburg's former black townships, namely Soweto and Alexandra, which are emerging as centers for so-termed ‘township tourism’ in South Africa, are investigated. This revised version was published online in August 2006 with corrections to the Cover Date.     

Ethnoscapes, entertainment and ’eritage in the global city: segmented spaces in Singapore’s Joo Chiat Road

This case study considers the early development and recent changes that have occurred in the vicinity of Joo Chiat Road, Singapore, which can be described as a ‘linear activity corridor’ linking the districts of Geylang, Katong and Marine Parade, immediately east of Singapore’s urban core. Singapore’s Urban Redevelopment Authority (URA) has declared Joo Chiat to be a ‘Conservation Area’, reflecting local-born Peranakan and Eurasian cultures, with similar status to other more central historic sites such as Chinatown, Kampong Glam, Little India and Emerald Hill. But the story of Joo Chiat has evolved along a somewhat different trajectory from the more prominent, tourism-related, heritage areas, with a multiplicity of interactions operating at the margins of the planning process. This has led to the spatial infusion of potentially discordant, globally related, ‘entertainment and recreational’ activities into an area of established urban identity and multiple attachments. When a policy of police containment was found to be inadequate in protecting local residents from undesirable impacts, changes were eventually brought about through a combination of neighbourhood activism and local political initiative. Through detailed land use inspections, press reports and strategic interviews, backed up by secondary sources, the study highlights the impingement of marginalised, potentially disruptive ‘global’ elements into a local heritage conservation area, and the importance of strong neighbourhood identity and community involvement as active components in the process of conflict resolution.     

Memorial landscapes: analytic questions and metaphors

Over the past two decades, geographers have probed the intersection of collective memory and urban space. Their sustained interest in the subject reflects an understanding of the social condition of commemoration and the important role that space plays in the process and politics of collective memory. Along with other critical social scientists, geographers envision these public symbols as part of larger cultural landscapes that reflect and legitimate the normative social order. A review of the extant literature indicates that geographers scrutinize memorial landscapes through three conceptual lenses that may be understood via the metaphors of ‘text,’ ‘arena,’ and ‘performance.’ These metaphors are in turn mobilized through a series of analytic questions that serve to identify the interests served and denied by landscape ‘texts,’ the ‘arenas’ in which they are produced, and the ways in which they are enacted via ‘performance.’ This article’s synopsis of the subfield’s predominant metaphors and its attendant questions contributes to the ongoing cultural geographic project of articulating and implementing methods for interpreting landscapes as open-ended symbolic systems.

Capitalism, masculinity and whiteness in the dialectical landscape: The case of Tarzan and the Tycoon

The intent of this paper is to explore how ‘reel’ and ‘real’ landscapes can be rendered dialectic. The analysis focuses on the filming of Tarzan's Secret Treasure (1941) at the wildlife preserve of Wakulla Springs in Florida, which was administered by the financial tycoon Ed Ball. Using Mitchell's recent commentaries on ‘good’ and ‘bad’ dialectics as our entry point, we offer two readings of this cinematic process. The first renders the on and off screen Wakulla Springs as ideological fodder, serving to valorise capital, masculinity and whiteness. The second reading addresses how this place has been actively constructed from discourses pertaining to class, gender and race, such that Wakulla exists as a series of fully relational spaces within diverse contexts, both ‘real’ and ‘reel’. In structuring our analysis in this manner, we hope to make clear why it does indeed matter for film geographers to acknowledge the conceptual presumptions brought to bear in the framing of the real and the reel as objects of analysis. This revised version was published online in August 2006 with corrections to the Cover Date.     

Analytic hierarchy models for regional groundwater monitoring well allocation in Southeast Asian countries and South Korea

Groundwater has played an important role in economic development in Southeast Asian countries, but some problems caused by nature or human actions such as contamination, over pumping, and land subsidence bring the necessity of more systematic groundwater monitoring wells. The analytical hierarchy process with pairwise comparison was used to allocate and organize the regional groundwater monitoring wells in five regions, Thailand, Cambodia, East/West Malaysia, and South Korea. Five different multi criteria decision models, which were composed of three primary criteria and eight secondary criteria, were developed based on the answers of the questionnaire from 76 groundwater experts in Thailand, 100 in Cambodia, 101 in East Malaysia, 87 in West Malaysia, and 93 in South Korea. It was revealed that the weights of model criteria for each country, which also represent relative importance on groundwater monitoring, were different according to the diverse groundwater situation. The most important factor to determine the number of monitoring well was ‘number of households using only groundwater as a water source’ for Thailand and South Korea, ‘number of contamination sources’ for Cambodia, ‘amount of groundwater use for drinking-water supply’ for East Malaysia, and ‘number of wells with contaminated water’ for West Malaysia.     

Cultural industries, information technology and the regeneration of post-industrial urban landscapes. Poblenou in Barcelona - a virtual city?

In a former industrial part of Barcelona, as in the de-industrialising neighbourhoods of many big cities, the ‘new’ economy and the ‘cultural’ economy have started to replace the ‘old’ economy, bringing new life into a declining district but also causing conflicts of land use, housing or the preservation of architectural heritage. The latter is an important part of regeneration and marketing policies of city governments, whereby the ‘new’ economy not only emerges from the old but the physical space of the old industrial quarter becomes the tool and setting in which the city can re-present itself and its success story of transformation and regeneration. Through the increasing use of information and communication technologies, which are at the same time driving this transformation - an industry as such as well as business-aid in various sectors, cultural industries in particular - the city has acquired a second, virtual presence. The city exists and ‘lives’ on numerous websites. Those by city government and city organisations often have the express purpose of marketing and presenting the city, while those by (cultural) businesses and other organisations in the district add to the mosaic of the virtual city. As a result, the old industrial space continues to live and be productive, its economic value having changed largely into a cultural value. This coexistence of the real and the virtual, old and new, also meets with a conflict at certain junctures. There is the positive representation of plans and events on the city's websites on the one hand, and the undercurrent of protest and disenchantment among the local population who find themselves marginalised from the profits and success of development, on the other. This revised version was published online in July 2006 with corrections to the Cover Date.