Commentary: Visual Cultures,Publication Technologies,and Legitimation in the Life Sciences**

This paper comments on five articles in the special issue “Circulating Images in the Life Sciences.” It sees the papers as unified by two themes. The first is their attention to the processes of legitimation. The second is the embedding of the images in textual cultures, which changed over time from the mid-nineteenth century to the very recent past, most notably with the recent advent of digital culture.     

Preliminary Investigations of Two Shipwreck Sites in Cahuita National Park,Costa Rica

Recent underwater archaeological investigations in Costa Rica focused on two sites as potential candidates for Danish West Indies slave ships wrecked in 1710. Historical research suggests a landmark wrecking event associated with a large infusion of Africans, many who remained in Central America. This paper is the first interim report of two fieldwork seasons combining field methods, research, and preliminary interpretation of the findings with voyage history. Context within the broader theme of slave‐ship archaeology and Costa Rica Caribbean landscape is addressed. An integral part of the initiative is community memory, stewardship, and education.     

Fuelling Social Inclusion? Neo‐extractivism,State–Society Relations and Biofuel Policies in Latin America's Southern Cone

Scholarship on neo‐extractivism agrees that this ‘post‐neoliberal’ model of development is founded on an inherent contradiction between the commitment to continue natural resource extraction and the need to legitimize these activities by using their revenues for poverty reduction. Using the cases of the national biofuel policies of the ‘post‐neoliberal’ governments of Argentina, Brazil and Uruguay, this article enquires why and how these policies emerged, how they were implemented, and how the resulting national experiences exemplify the inherent contradictions embedded in neo‐extractivist policies. Adopting a strategic‐relational approach to analyse state–society interaction, it is argued that the scope of progressive policies is conditioned to a large extent by pre‐existing social structures, institutions and state–society interactions. The article shows how progressive reforms intersect with the prevailing interests of agribusiness and state actors and are recast and used for different ends as these interact with powerful actors such as the multinational soybean complex and agrarian movements. It is suggested that the prevailing over‐emphasis in the neo‐extractivist literature on the politics of domination and contestation overlooks the multiple and complex rural responses of the different progressive governments. It also obscures the possibilities to explore the ruptures and continuities of these countries’ governments with previous models, and therefore fails to recognize state advances.     

Out-of-Plane Seismic Response of Unreinforced Masonry Walls: Conceptual Discussion,Research Needs,and Modeling Issues

ABSTRACT

Modeling unreinforced masonry walls, subjected to seismic loads applied normal to their plane, has received much attention in the past. Yet, there is a general lack of conformance with regard to what aspects of seismic response a computational model should reflect. Boundary conditions are certainly an important aspect, as the response can involve two-way bending or just one-way bending and, in the second case, along vertical or horizontal directions. In this respect, flexural restraint of wall intersections can be significant in addition to size and placement of openings. Moreover, in-plane damage can modify the boundary conditions and the overall out-of-plane performance. Proper modeling of actions is also relevant, as they can be a result of distortions imposed upon wall elements and/or inertial forces along the span of a wall. Axial forces can markedly affect the out-of-plane response of the wall, particularly vertical compressive forces, which can enhance out-of-plane strength. The outcome of static verifications can be more conservative than that of dynamic analyses, but the latter are much more complex to carry out. These topics are discussed with reference to previous research, observations in the field and in the laboratory, as well as numerical analyses on three-dimensional models.     

Conscripting the breast: lactation,slavery and salvation in the realms of Aragon and kingdom of Majorca,c. 1250–1300

This essay examines the ideals and practices surrounding motherhood and wet nursing in the realms of Aragon and kingdom of Majorca c. 1250–1300. Despite powerful messages — from ecclesiastical pronouncements to lay devotional manuals to artwork in churches — that linked maternal breastfeeding to an educative and caring ideal of mothering, social and economic pressures on wealthy urban and knightly women to remain as sexually available and as fecund as possible caused a shift to increased use of wet nurses, many of whom were of Muslim origin. Although the latter would have been nominally baptized, in practice, if not normative legal ideal, they maintained their enslaved status no matter how many children they bore. Indeed, it is possible that such women's bodies were doubly exploited: first, as sexual chattel available to their masters and other men, and then, having been made pregnant, as nursing mothers whose own children could be put away in favour of their mistresses'. Only fragmentary examples of such women ‘conversing’ with one another have been found, but the observations offered here open up to the historian's view a social scenario in which we know many conversations among women must have taken place.