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The last decade of the twentieth century was heralded as the ‘end of agrarian reform’ in Mexico and the initiation of a new era of market‐led agricultural policy and practice. The impact of neoliberalism and the North American Free Trade Agreement on smallholder maize production has been widely conceived as negative, associated with ecological degradation, rural emigration and cultural erosion. Yet, some twenty years later, all evidence suggests that smallholder maize production is continuing in Mexico, albeit in evolving structures and forms. This article uses a farm‐level survey implemented in three Mexican states to assess the current condition of maize farming in Mexico. The authors revisit past categorizations of Mexican farmers and apply similar approaches to explore what maize‐producing households are doing with their maize, and what current patterns of production imply for future Mexican maize policy. They find evidence of greater persistence and adaptability in Mexican maize farming than is often presented. On the basis of their analysis, they advocate for a reconsideration of the underlying assumptions of public policy, highlighting the heterogeneity of the maize landscape and the unrealized and generally unrecognized potential this heterogeneity represents.  相似文献   
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Tools are developed to predict damage to archaeological remains caused by the construction of line infrastructure on soft soil. They are based on numerical modelling and laboratory testing supported by X-ray microcomputed tomographic observations, and micromorphological analyses of thin sections. They have been validated for one-dimensional (1D) loading at two sites in the Netherlands where soil has been placed on top of organic layers rich in ecofacts and overlaying Pleistocene sands.

Numerical prediction of the deformation of soft layers underneath an embankment remains a challenge for geo-technical engineers. Errors on surface settlement prediction reach ±15% of the measured total settlement.

Laboratory observations show that vulnerable artefacts can get crushed when packed loosely in pure assemblies under 1D loading equivalent to less than 5 m of sand. Fragmentation is assimilated to loss of archaeological value as it compromises recovery during sieving. Embedment in a sandy or a very compressible organic matrix has a beneficial effect on the resistance of ecofacts. Embedded ecofacts can resist a load of more than 12 m of sand. Flattening and re-orientation of soft plant remains occur during 1D loading without microscopic damage of tissues.  相似文献   
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This editorial is seen as a comment on the on-going concern expressed in several Anglophone geography journals about the hegemony of Angloamerican production and its role in formulating the terms of international academic debate. We examine the extent to which Angloamerican dominance is equally true with regard to feminist geography, by looking at how/whether Gender, Place and Culture (GPC) deals with this bias. Finally we forward some suggestions for positive action towards enhancing the international character of the journal.

¿La hegemonía Anglosajona impregna Gender, Place and Culture?

Esta nota editorial trata de un tema que en la actualidad es motivo de preocupación en algunas revistas anglosajonas, la hegemonía de la producción anglosajona en geografía y su papel crucial en la formulación de los debates académicos internacionales. A través del anàlisis de la revista Gender Place and Culture, se discute cómo esta situación se da también en la geografía feminista. Finalmente, se proponen una serie de acciones positivas para potenciar el carácter internacional de la revista.  相似文献   

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This paper explores the opening of a purpose-built mosque in Copenhagen, treating it as a case of cross-cultural encounters in urban public space. The encounters explored, then, take a specific form; they are mediated through the architecture and materiality of the mosque and the symbolic signs and public imaginations attached to it. And they are connected to a specific event – the opening of the mosque. In the first part, a conceptual framework is presented bringing together literature on three notions: encounters, visibility and the event. Following this, the paper explores the opening event, the public debate that surrounds it, the process leading up to it and some reactions in the months that followed. The paper concludes by showing how the opening event expresses several paradoxes. The controversies over the visibility of Islam in public space push stereotypical imaginations and Islamophobic feelings to the extremes. At the same time, however, they bring together different groups in unprecedented ways and create new constellations over political, religious and cultural boundaries.  相似文献   
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Governance of risks to native flora and fauna and agriculture from disease and pests increasingly emphasises the importance of a ‘shared responsibility’ for biosecurity. Few studies, however, have examined factors that influence stakeholders' engagement with such risks and responsibilities, particularly in community, rather than agricultural, settings. In this paper, we focus on a group of stakeholders in a context of heightened regional biosecurity activity, in northern Queensland, Australia. We explore the role that community garden actors may or may not play in biosecurity surveillance. Through interviews with 16 community garden group leaders and local government representatives, we unpack external social factors that contributed to stakeholders' engagement, unengagement, or disengagement with and from biosecurity risks. These factors included institutional characteristics such as land tenure and the presence or absence of management policies and guidelines. However, we found that less formal institutional characteristics such as social networks played a greater role in shaping stakeholder engagement. Unengaged stakeholders were typically unaware of risks posed by plant pests and diseases and had limited network connections to relevant government agencies but expressed an interest in learning and participating in biosecurity surveillance networks. Disengaged stakeholders were more knowledgeable of biosecurity risks and had established network connections but expressed a low interest in or willingness to report a potential biosecurity threat. This case study provides insights into important social dimensions of governing risk among stakeholders and offers recommendations to improve stakeholder engagement within biosecurity surveillance networks.  相似文献   
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