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101.
Pathological changes of the lector priest Iufaa are compared with those revealed on the skeletons of his two relatives Imakhetkherresnet and Nekawer, and of an unrelated male Padihor. They were discovered in 2001 in the vicinity of Iufaa's monumental shaft tomb, dating from late 26th dynasty (before 525 BC). The complex was found unmolested by robbers. Congenital anomalies, osteoporosis, degenerative joint changes, post‐traumatic changes and maybe the first palaeopathological evidence of a rare benign neoplasm (neurilemmoma) were recorded. The findings add interesting new facts to the lives of these historical persons. Copyright © 2003 John Wiley & Sons, Ltd. 相似文献
102.
DANNY P. SOETANTO MARINA VAN GEENHUIZEN 《Tijdschrift voor economische en sociale geografie = Journal of economic and social geography = Revue de géographie économique et humaine = Zeitschrift für ?konomische und soziale Geographie = Revista de geografía económica y social》2009,100(2):198-209
A key assumption in agglomeration theory is that knowledge‐based firms benefit from knowledge spillovers in cities. Cities however may have different locations in the national context, such as embedded in a network of nearby cities or relatively isolated. We examine social networks employed by university spin‐off firms in urban environments that contrast in such a way, namely, Delft (the Netherlands) and Trondheim (Norway). A set of growth models is explored with a focus on characteristics of social networks through which knowledge is acquired, such as tightness, strength and spatial orientation. The networks appear to differ in various respects, except for a positive influence on growth of heterogeneity in the social background of partners. The largest difference is observed in strength of relationships: an increase in strength tends to hamper growth in Delft, while it tends to enhance growth in Trondheim. 相似文献
103.
Dylan S. Davis 《Environmental Archaeology》2020,25(4):367-380
ABSTRACT Environmental archaeological enquiry has a long and vibrant history. Many of the same questions have persisted in archaeological dialogues over the past century. In particular, the effects of environmental change on demographic patterns, health, and societal stability are among the most pervasive questions being addressed by anthropological research. These studies have limitations, however. For example, evaluations of the complex relationships between environmental variables and human responses are only just beginning to emerge in anthropological literature. This goal requires high-resolution paleoclimate datasets and the use of quantitative modelling rooted in evolutionary and complex systems theory. This paper serves as a broad review of advances in environmental archaeological enquiry associated with environmental change and human response. I argue that the future of archaeological questions concerning human-environmental connection requires a re-evaluation of causality and the incorporation of complex systems approaches to address human responses to external pressures. 相似文献
104.
Complex systems modeling approaches offer the means to examine the way in which local interactions between system components form emergent systems. Using these bottom‐up modeling approaches in combination with geographic information systems (GIS) and geospatial data, the complexity inherent to spatial phenomena including geographical, urban, ecological, or geophysical systems can be captured and represented. Scientific research in the field of network science also uses a complex systems approach to conceptualize, model, and analyze geospatial systems as networks. Despite having common characteristics, complexity, geographic information, and network sciences are not yet fully integrated. Therefore, the main objective of this article is to provide a comprehensive review of scientific research related to network theory and to evaluate the potential of their integration with complex systems modeling approaches originating in the field of geographic information science (GISc). This article finds that existing literature focuses on characterizing static spatial network structures to better understand the dynamics that take place on or within them. This article argues for a necessity in research advancements to explore the way in which real spatial network structures evolve in response to spatial dynamics and advocates for the integration of geographic automata systems (GAS) modeling approaches with networks to do so. The mathematical foundation for graph theory, including the measures that are used to describe networks and the theoretical graph types, are introduced. Geospatial applications of networks and graph theory are also presented. Examples of network‐based automata models are presented as avenues for future research work in evolving spatial networks as part of GISc and computational geography. 相似文献
105.
Alberto Preci 《The Canadian geographer》2020,64(1):20-31
Indigenous mapping is a powerful political tool for long-marginalized populations to create visibility and establish land claims. In the case of Argentina, a country that was built on a denial of the presence of Indigenous peoples in the national territory, the emergence of these maps stemming from participatory processes coincided with the recognition of these communities' territorial rights in 1994. However, this mapping of Indigenous territories freezes extremely dynamic and complex socio-spatial realities just as it inflects their representations. In this paper, I reassess the weight and the role that Indigenous cartographic representations play in the evolution of these populations' spatial capital. Paradoxically, they give rise to more contradictions than they clarify. These paradoxes demonstrate the varied relationships different generations maintain with their territory, just as they concern its structure and its cartographic form. Therefore, based on the case of the Wichí of the Argentinian Chaco, this paper contributes to the understanding of contemporary issues of indigeneity by adopting a critical approach to Indigenous cartography. Whereas in Argentina cartographic knowledge is undergoing a process of decolonization, this does not apply to the legal system or to society as a whole. 相似文献
106.
The Lost City hydrothermal field (LCHF) is hosted in serpentinite at the crest of the Atlantis Massif, an oceanic core complex close to the mid‐Atlantic Ridge. It is remarkable for its longevity and for venting low‐temperature (40–91°C) alkaline fluids rich in hydrogen and methane. IODP Hole U1309D, 5 km north of the LCHF, penetrated 1415 m of gabbroic rocks and contains a near‐conductive thermal gradient close to 100°C km?1. This is remarkable so close to an active hydrothermal field. We present hydrothermal modelling using a topographic profile through the vent field and IODP site U1309. Long‐lived circulation with vent temperatures similar to the LCHF can be sustained at moderate permeabilities of 10?14 to 10?15 m2 with a basal heatflow of 0.22 W m?2. Seafloor topography is an important control, with vents tending to form and remain in higher topography. Models with a uniform permeability throughout the Massif cannot simultaneously maintain circulation at the LCHF and the near‐conductive gradient in the borehole, where permeabilities <10?16 m2 are required. A steeply dipping permeability discontinuity between the LCHF and the drill hole is required to stabilize venting at the summit of the massif by creating a lateral conductive boundary layer. The discontinuity needs to be close to the vent site, supporting previous inferences that high permeability is most likely produced by faulting related to the transform fault. Rapid increases in modelled fluid temperatures with depth beneath the vent agree with previous estimates of reaction temperature based on geochemical modelling. 相似文献
107.
Rivers have long been convenient yet troublesome borders. Inherently itinerant, rivers routinely defy cartographic depictions of borders as static, territorially bounded formations. Such dynamism poses material and conceptual challenges to state regulatory activities, resulting in increasingly heterodox attempts to fix waterbodies through various securitizing mechanisms. I examine the dialectical relationship between rivers and borders through the concept of the river-border complex. I ask how the Ganges River shapes the form and function of the Indo-Bangladeshi border and how, in turn, bordering practices in India regulate flows along the river, which comprises 129 km of India's border with Bangladesh. Drawing on archival records, in-person interviews, and river data, I find that the border and efforts to secure it mediate many flows along the river. The study corroborates previous work within critical border studies that securitizing cross-border flows has the perverse effect of generating greater insecurity in adjoining countries. Crucially, historical analysis of sediment, information, and human flows reveals how international rivers also determine patterns and processes of circulation and thereby warrant reconceptualization as border infrastructures, rather than as merely being subject to them. 相似文献
108.
AbstractCultural diplomacy using diasporic communities as facilitators of interaction between states has long been important. This article suggests a typology of networks of communication derived from a case study of long-established diasporas living in post-independence Kazakhstan and their relationship with their European ‘homelands’. The typology juxtaposes the official stance of homeland governments expressed in formal and legal provisions with the lived experience of the diaspora communities. The study highlights the benefits of developing vibrant ‘valued’ networks of communication embracing both local diasporas and homeland embassies and agencies. In such cases, diplomatic benefits accrue to the homeland and local communities are empowered. Similarly, failing to capitalise on positive sentiment with some infrastructural support may leave an ‘expressive’ network as one of neglected potential. 相似文献
109.
Daniel Martin 《Journal of Victorian Culture》2017,22(4):427-449
This essay explores Charles Dickens’s railway journalism of the 1850s and 1860s and its differences from his more well-known fictional accounts of the British railway network. While fictional works such as Dombey and Son and ‘The Signalman’ emphasize the catastrophic aspects of railway accidents, Dickens’s journalism in Household Words and All the Year Round examines the modern systematicity of the railway network, which by its nature as system, necessitated accidents on the lines. The essay incorporates theoretical readings of risk by Ulrich Beck and Paul Virilio into its critical assessment of Dickens’s railway journalism. Fundamentally, it aims to demonstrate that Dickens’s railway journalism illuminates the complexity of Victorian narratives of technological and bureaucratic industrial and transport systems by prioritizing the global dimensions of systematic accidents over the period’s tendencies to focus merely on local accidental events. 相似文献
110.
Y. Z. Zhangsun R. L. Liu Z. Y. Jin A. M. Pollard X. Lu P. J. Bray A. C. Fan F. Huang 《Archaeometry》2017,59(4):685-713
Chang'an (now Xi'an) was the capital of the Western Han Dynasty and the starting point of the Silk Road. In the light of the importance of Chang'an as the centre of politics, economy and cultural interaction, the overarching question proposed in this paper is focused on its role in the mirror production and distribution network during Han period. On the basis of chemical and lead isotopic analyses of 34 Han mirrors, this paper discusses the potential existence of a mirror production centre in Chang'an. Meanwhile, a comparative study with mirrors uncovered from the south‐western frontier and from Central Asian and North‐East Asian countries offers new insight into these related issues. 相似文献