Taphonomy and experimentation

Many experiments have been conducted in the field of taphonomy in order to understand the effects of some agents and the associated pattern and process of bone modifications. A review of these experiments and the patterns of bone modifications is presented here. Numerous experiments focus on peculiar points of bone accumulation, mainly to gain knowledge about human habits and practices, but the action of some taphonomic agents has also been explored, among them, diagenetic processes. The striking feature of all these works are that they are localized, performed on non–statistical samples and without repeatability. Very few experiments combine different agents to fit more closely to the complexity of most fossil bone accumulations.     

Urban experimentation and institutional arrangements

ABSTRACT

Currently little is known about how institutional arrangements co-evolve with urban experimentation. This paper mobilizes neo-institutional literature and recent urban experimentation literature as a framework to explore how and why institutional arrangements differ across urban contexts. Empirically the paper focusses on smart city initiatives in Amsterdam, Hamburg and Ningbo. These three cities are frontrunners in adopting a comprehensive smart city agenda, but they do so in different ways. The paper examines regulative, normative and cognitive elements of institutional arrangements, explores how they shape experimentation, and reflects on their place-based specificities. The comparative analysis suggests that the focus of, and approach to, experimentation can be understood as resting in a (possibly unique) combination of strategic agency and dynamics at multiple spatial scales.     

The library of Philip the Bold and Margaret of Flanders,first Valois duke and duchess of Burgundy

Dukes of the Valois Burgundian race in the fourteenth and fifteenth centuries provide an instructive chapter in the history of book making and book collecting. Starting with the books of Philip the Bold (Philippe le Hardi), the Burgundian library reached an impressive size through the efforts of Philip the Good, whose love of books, as of all else in the realm of art, made it one of the most remarkable collections of the fifteenth century. To the interests and influence of the dukes in the expansion of the library were added those of the duchesses, who were naturally affected by the activities of their husbands and, in the cases of Isabel of Portugal and Margaret of York, were equally responsible for new developments in the trends in the making, gathering, and reading of books. This study, based principally upon printed sources, will treat of the acquisition of books and some of the uses of them by the first Valois duke and duchess, Philip the Bold and Margaret of Flanders.     

The library of Philip the Bold and Margaret of Flanders,first Valois duke and duchess of Burgundy

Dukes of the Valois Burgundian race in the fourteenth and fifteenth centuries provide an instructive chapter in the history of book making and book collecting. Starting with the books of Philip the Bold (Philippe le Hardi), the Burgundian library reached an impressive size through the efforts of Philip the Good, whose love of books, as of all else in the realm of art, made it one of the most remarkable collections of the fifteenth century. To the interests and influence of the dukes in the expansion of the library were added those of the duchesses, who were naturally affected by the activities of their husbands and, in the cases of Isabel of Portugal and Margaret of York, were equally responsible for new developments in the trends in the making, gathering, and reading of books. This study, based principally upon printed sources, will treat of the acquisition of books and some of the uses of them by the first Valois duke and duchess, Philip the Bold and Margaret of Flanders.     

Urban experimentation & sustainability transitions

ABSTRACT

This special issue deals with various research questions regarding the impact of urban experimentation on transitions towards sustainability in different industries and sectors. Cities have been identified to play a vital role for sustainability transitions. Not only are they places with an increased urgency for change, but they also bring about many current sustainability initiatives and interventions. This special issue focuses on investigating the relationship between urban experimentation and institutional change. The articles shed light on various characteristics of urban environments that influence experimentation and potentially lead to institutional change and thus elaborate on some of the distinct mechanisms through which urban experimentation can lead to broader systemic changes.     

The Mousterian bone retouchers of Noisetier Cave: experimentation and identification of marks

Retouchers are fragments of bone used during the Paleolithic to strike stone flakes in order to transform them into retouched tools. Our experiments show that the mark produced on retouchers differs depending on whether they were used to strike flint or quartzite. Our results suggest that numerous pits, most often with an ovoid form, characterize the retouching of quartzite flakes. Most of the scores produced with this material have a sinuous morphology with rough interior faces. The areas with superposed traces have a pitted appearance. On the other hand, the retouching of flint flakes, produces pits that are most often triangular in form. Most of the scores have a rectilinear morphology with smooth interior faces and their superposition results in the formation of hatch marks. There is also a relationship between the characteristics of the mark and the relative state of freshness of the retouchers. The validity of the criteria identified was confirmed by a blind test. These diagnostic criteria were applied to archaeological retouchers from the Mousterian site of Noisetier Cave. The results obtained improve our knowledge of the technical behaviors of Neanderthals and allow us to address questions concerning their techno-economic implications.     

Islands as interstitial encrypted geographies: Making (and failing) cryptosecessionist exits

Initiatives to build juridically autonomous cities based on libertarian and anarcho-capitalist ideals have proliferated in the last decade. These include seasteading, charter cities, and “free private cities.” These ventures are part of a movement to build so-called “start-up societies,” which proposes developing experimental, small-scale communities to explore alternatives to the nation-state. Many such projects have turned to islands and island-creation as an interstitial space in which their experiments could unfold and benefit from being located within, but juridically autonomous from, sovereign state territories. Such experiments are linked to and build on the earlier use of islands for plantations, military bases, special economic zones (SEZs) and offshoring. These ventures also often rely on, and are shaped by, blockchain and cryptocurrencies and create what Isabelle Simpson theorizes as “encrypted geographies.” In this article, we seek to better understand how islands are used to create encrypted geographies which in turn create alternative political economies and communities and how, conversely, the imaginary of islands, enclaves and archipelagoes shapes how these alternative territories are conceptualized. We examine several attempts to create such start-up societies in the Caribbean and the Pacific to consider where, how, and why their proponents have taken to islands to establish these new encrypted geographies. The concept of interstitiality can help us understand why islands are privileged sites for the creation of encrypted geographies, and how these are used to transcend state borders yet simultaneously create digitally bordered interstitial spaces that undermine sovereign territories and currencies, empower cyber-kinetic elites, and exclude and marginalize existing island communities, natural ecosystems, and existing oceanic and archipelagic polities, cultures, and societies.     

酸沉降对室外文物材质破坏的试验方法

用现场暴露试验和室内模拟试验检验酸沉降对文物材料的破坏程度。提出了两种试验方法、试验步骤、试验后材料腐蚀速率的计算,建立材料损伤函数的几个步骤。     

Radical changes in Islamic glass technology: evidence for conservatism and experimentation with new glass recipes from early and middle Islamic Raqqa,Syria*

The chemical analysis of excavated glass fragments from dated archaeological contexts in Raqqa, Syria, has provided a detailed picture of the chemical compositions of artefacts deriving from eighth to ninth and 11th century glassmaking and glassworking activities. Evidence for primary glass production has been found at three excavated sites, of eighth to ninth, 11th and 12th century dates; the first two are discussed here. The 2 km long industrial complex at al‐Raqqa was associated with an urban landscape consisting of two Islamic cities (al‐Raqqa and al‐Rafika) and a series of palace complexes. The glass fused and worked there was presumably for local as well as for regional consumption. Al‐Raqqa currently appears to have produced the earliest well‐dated production on record in the Middle East of an Islamic high‐magnesia glass based on an alkaline plant ash flux and quartz. An eighth to ninth century late ‘Roman’/Byzantine soda–lime recipe of natron and sand begins to be replaced in the eighth to ninth century by a plant ash – quartz Islamic soda–lime composition. By the 11th century, this process was nearly complete. The early Islamic natron glass compositional group from al‐Raqqa shows very little spread in values, indicating a repeatedly well‐controlled process with the use of chemically homogeneous raw materials. A compositionally more diffuse range of eighth to ninth century plant ash glass compositions have been identified. One is not only distinct from established groups of plant ash and natron glasses, but is believed to be the result of experimentation with new raw material combinations. Compositional analysis of primary production waste including furnace glass (raw glass adhering to furnace brick) shows that contemporary glasses of three distinct plant ash types based on various combinations of plant ash, quartz and sand were being made in al‐Raqqa during the late eighth to ninth centuries. This is a uniquely wide compositional range from an ancient glass production site, offering new insights into the complexity of Islamic glass technology at a time of change and innovation.     

Impacts of urban living labs on sustainability transitions: mechanisms and strategies for systemic change through experimentation

ABSTRACT

Urban Living Labs (ULL) are considered spaces to facilitate experimentation about sustainability solutions. ULL represent sites that allow different urban actors to design, test and learn from socio-technical innovations. However, despite their recent proliferation in the European policy sphere, the underlying processes through which ULL might be able to generate and diffuse new socio-technical configurations beyond their immediate boundaries have been largely disregarded and it remains to be examined how they contribute to urban sustainability transitions. With this study, we contribute to a better understanding of the diffusion mechanisms and strategies through which ULL (seek to) create a wider impact using the conceptual lens of transition studies. The mechanisms of diffusion are investigated in four distinct ULL in Rotterdam, the Netherlands and Malmö, Sweden. The empirical results indicate six specific strategies that aim to support the diffusion of innovations and know-how developed within ULL to a broader context: transformative place-making, activating network partners, replication of lab structure, education and training, stimulating entrepreneurial growth and narratives of impact.     

A case for lead-glaze experimentation by late eighteenth-century Catawba using portable X-ray Fluorescence (pXRF)

ABSTRACT

Recent research has demonstrated that Catawba ceramic practices changed abruptly and dramatically after 1759 following a devastating smallpox epidemic and subsequent community relocation. Pottery from the historically documented Catawba town of Old Town and others indicate potters adopted new techniques and styles as they adjusted to new economic and social conditions, including copying European vessel forms, experimenting with new ceramic paste recipes, and utilizing new decorative motifs. The identification of four lead-glazed sherds on otherwise Catawba-looking pale-bodied paste raises the possibility that Catawba potters may have also experimented with lead glazing. This paper presents the results of an elemental analysis of nearly 70 ceramic samples using pXRF and multivariate statistical techniques to identify patterns of production within pale-bodied colonowares. The results indicate that the glazed pottery fragments were made with elementally similar clay used by Catawbas in the Twelvemile Creek locality. I argue that in addition to modifying nearly every aspect of their ceramic repertoire, at least one Catawba potter experimented with lead glazing, providing further insights into the emergent Catawba pottery trade.