Molecular Electronics Electronic Applications of Organic Molecules and Polymers

Abstract

This article reviews some of the ways in which organic molecules and polymers are currently being used in the generation of electronic devices. Polymers can be used both actively and passively in electronic circuits. The traditional use of polymers in a passive sense has been as insulators and more recently we have seen polymers used in an active way both from the point of view of their optical and electrical responses. Organic molecules containing donors and acceptors connected by conjugated structures are capable of exhibiting non-linear optical responses and are likely to play an important role in the production of optoelectronic devices in the future. Similarly, polymers doped so that fast conduction can occur between conjugated electronic structures are likely to play an important role in the fabrication of biosensor devices. Polymeric structures in which ions are dispersed may also be used in the future to produce conducting polymer electrolytes for construction of totally solid state battery systems. Ways in which organic structures are likely to make an impact in terms of development of electronics in the next decade are reviewed and the breadth of the area of molecular electronics summarised.     

Towards Accommodating Southern Perspectives in Environment and Development Teaching

The trivialisation of the knowledge creation capacity of the South, and the perceptions of the Southern people's inability to provide appropriate analyses of the issues that are epistemologically important to them, are important development education debates. The aims and purpose of this paper are twofold. The first is to describe a new and unique postgraduate (Master's) programme in Environment and Development, which actively seeks to accommodate Southern perspectives in its design and delivery. The second is briefly to evaluate the outcome of the above strategy, with a view to identifying the major strengths and weaknesses of the programme, especially in relation to institutional arrangements to assist programme delivery. The paper concludes that Southern perspectives are important in shaping the worldview of Northern students undertaking postgraduate studies focusing on developing countries. It also acknowledges that it is a challenge to establish a North-South cooperation in the university sector which is truly symmetrical, especially with respect to power relations.     

Seismic Refraction at Ancestral Puebloan Sites on the Pajarito Plateau,New Mexico

Abstract

Geophysical techniques can be used for non-invasive surveys at archaeological sites. One under-utilized technique, seismic refraction, has many potential applications. It is an inexpensive, efficient way to characterize subsurface deposits, especially at sites with shallow accumulations over bedrock. Archaeologists and geophysicists participating in the Summer of Applied Geophysics Experience from Los Alamos National Laboratory and Bandelier National Monument on the Pajarito Plateau in northern New Mexico characterized Ancestral Puebloan sites (A.D. 1200–1450) using this technique. We provide an overview of how seismic refraction works and demonstrate the applicability of seismic refraction for identifying buried archaeological features such as communal structures and walls.     

Persistent land use patterns and the mid-Holocene housepits of Wyoming

Abstract

The cyclical use of sites and locales over decades, centuries, and even millennia is an important aspect of hunter-gatherer land use that is rarely considered in studies that focus on a single annual cycle. The long-term perspective provided by archaeological data can be used to delineate persistent land use patterns and contribute to an understanding of the complexity of hunter-gatherer behavior. Mid-Holocene Wyoming housepit data document persistent land use over at least a 2000-year period at three spatial scales—the reuse of housepits, reuse of sites containing housepits, and use of different sites within the larger region. Slab-lined cylindrical basins at many sites in southwest Wyoming provide evidence for stable long-term land use during the middle Holocene. The focal point of this pattern was probably a predictable resource, possibly some type of root plant that would have been available during the dry middle Holocene.     

Post‐truth anthropology

Countless commentators have announced the advent of the post‐truth era, but while everyone seems to be talking about it, there is little agreement about what it really means. This article argues that anthropology can make an important and distinctive contribution to understanding post‐truth by treating it ethnographically. Commonly proposed explanations for post‐truth include changes in political culture, in the structure of information in the digital age and universal cognitive weaknesses that limit people's capacity for critical thought. While all these are likely important factors, they do not account for the role of culture in creating and sustaining post‐truth. In fact, it is likely that culture, especially in the form of metacognition, or thought about thought, plays an important role by providing knowledge practices, techniques for allocating attention, and especially competing theories of truth. Ethnographic methods provide anthropologists with a distinctive window on post‐truth cultures of metacognition.     

New evidence for Bronze Age agricultural settlements in the Zhunge’er (Junggar) Basin,China

Abstract

The Zhunge’er (Junggar) Basin in northern Xinjiang was a key crossroads in antiquity for the dispersal of ideas and technological innovations from the Eurasian steppe into the heartland of central China. The Bronze Age chronology of the Zhunge’er Basin is chiefly based on relative dating and little is known about subsistence strategies, although the strong tradition of nomadic and transhumant pastoralism among modern populations suggests that there may have been a high degree of mobility. The visibility of ancient cemeteries and the need to salvage graves before they are looted have resulted in a lack of focus on settlements, with a consequent assumption that in antiquity agriculture played a limited role. This assumption has been challenged by rescue excavations at the Jimusa’er (Jimsar) Luanzagangzi site, which indicate that agriculture may have been a significant component of Bronze Age subsistence strategies. Small-scale soundings at settlement sites provide well-stratified sequences of material for absolute dating which can be used to place the artifacts recovered from graves in a more secure chronological context.     

The Prehistory of NW Argentina: the Calchaquí Valley Project, 1977–1981

Abstract

The late pre-Hispanic populations of the Calchaquí Valley of NW Argentina may be seen as typical of the native culture of the south Andes. The developmental sequence for these sedentary village societies, however, has only recently begun to be detailed. Field and lab results pertaining to a survey of 24 sites are summarized, including one of the first ceramic seriations to include the full range of pottery types; ceramic wares and their significance are also identified. Findings further include the first recognition of what are believed to be Middle Period sites for the valley, thus filling an important gap in our understanding of the region's prehistory.     

Traditional Burnt-Lime Production at Mayapán,Mexico

Abstract

Lime was widely utilized throughout ancient Mesoamerica. Drawing on the expertise of traditional Maya lime producers from a small local community, we address the energetics, material inputs, and archaeological signature of burnt-lime production in the Northern Yucatan Peninsula of Mexico. When compared with the estimated lime usage at the Maya site of Mayapan, the data collected from experimental lime burning suggest that traditional lime production was reasonably labor intensive and used large, albeit sustainable, quantities of raw materials, especially wood. Lime manufacture was an important component of ancient Mesoamerican economic life, especially in urban settings where it may have been a full time occupation for some, at least during certain parts of the year. This analysis allows us to predict what the remains of lime burning sites should look like and where they are most likely to be encountered archaeologically.     

Human Capital in Low-Tech Manufacturing: The Geography of the Knowledge Economy in Denmark

Abstract

An essential feature associated with the rise of the knowledge economy has been the increasing focus on the importance of human capital as a precondition for economic growth. Human capital has been found to have a positive impact on the economic growth of high-tech industries, however, the influence of human capital on the development of low-tech industries is yet to be analysed. This paper provides such an examination of low-tech industries based on an analysis of employment data within manufacturing industries in Denmark in the period 1993–2006. The findings highlight, first, that human capital appears to be equally important for economic development in low-tech industries and, second, that the divide between the large urban regions, especially Copenhagen, and the rest of the country plays the primary role in explaining the geography of human capital. These findings stress the relevance of a broad conception of the knowledge economy which goes beyond high-tech industries.     

Aerial Archaeology: A Personal Account

Abstract

Aerial photography is playing an important role in the mapping of archaeological sites both terrestrial and under the sea. New systems of photography variously combined for search, survey, and recording are proving to be an effective and valuable aid to archaeologists.     

Wild Birds of the Italian Middle Ages: Diet,Environment and Society

ABSTRACT

Wild birds are intrinsically associated with our perception of the Middle Ages. They often feature in heraldic designs, paintings, and books of hours; few human activities typify the medieval period better than falconry. Prominent in medieval iconography, wild birds feature less frequently in written sources (as they were rarely the subject of trade transactions or legal documents) but they can be abundant in archaeological sites. In this paper we highlight the nature of wild bird exploitation in Italian medieval societies, ranging from their role as food items to their status and symbolic importance. A survey of 13 Italian medieval sites corresponding to 19 ‘period sites’, dated from the fifth to the fifteenth centuries, reveals the occurrence of more than 100 species (certainly an under-estimate of the actual number). Anseriformes and Columbiformes played a prominent role in the mid- and late medieval Italian diet, though Passeriformes and wild Galliformes were also important. In the late Middle Ages, there is an increase in species diversity and in the role of hunting as an important marker of social status.     

On “Natural” Uncertainty: The Philosophical Underpinnings of Uncertainty in Economics,with Special Reference to Knight and Strauss

Abstract

While current discourse has failed and will continue to fail to adequately integrate uncertainty into economic theory, this work explores how political philosophy can provide a better understanding of uncertainty. Specifically, political philosophy can answer most of the questions posed by Frank Knight's proposition of uncertainty in economic theory. In elaborating on Knight's reservations relating to Pragmatism, this work suggests that Knight's approach might well be revised to more adequately embrace the recent developments in American philosophy, especially those suggested by Leo Strauss. Significantly, it can be argued that Strauss provides a stronger foundation for the proposition of uncertainty in economic theory than Knight's application of Pragmatism around 1921. An understanding of uncertainty, which is based on Strauss, might be referred to as “natural” uncertainty, and this form of uncertainty may provide a point where political philosophy might begin to gain some traction within economic theory.     

Roman and Byzantine Settlements in the Region of West Irbid

Abstract

It was always clear that for practical reasons any new region-based study of the Roman and Byzantine periods in north-western Jordan would have to rely on existing evidence from archaeological surveys and excavations. The concentration of previous archaeological survey work in parts of the region of West Irbid in Jordan, and especially the surveys made by N. Glueck in the 1940s and S. Mittmann in the 1960s, made this area especially attractive for archaeologists. In this paper, the aim was to analyze the results of the West Irbid survey, particularly of the Roman and Byzantine periods, made during September 2005. The information gathered was of great help, enabling the classifi cation of sites into groups according to the nature of occupation, and analyzing the discovered architectural remains to provide a broader context for interpretation of the nature of Roman and Byzantine settlements in the surveyed region.     

Planning's “Failure” to Ensure Efficient Market Delivery: A Lacanian Deconstruction of this Neoliberal Scapegoating Fantasy

Our neoliberal governance model places a burden on planning to often take “responsibility” for the failure of market-lead governance to deliver its policy promises of betterment, security and future enjoyment. These include promised, but often-unachievable policies, such as those of increased global competitiveness for areas of structural economic decline; or housing affordability in areas of population growth and constrained land availability. Resultant policy failures then result in a scapegoating response where planning is held responsible. Examples include that economic development, or housing affordability, is obstructed by planning impediments, such as regulatory controls or process delays, which are claimed to hamper efficient market delivery. To deconstruct this neoliberal fantasy that planning often impedes policies for market-lead success, the article will first document exemplars of this scapegoating process. It will then explore the role of fantasy and ideology in governance policy formulation and, from a Lacanian perspective, the theorization that underlies this process. Then, it will investigate the role of the “scapegoat” for public policy facilitation so as to explain why planning is often placed in this role, and why this role is often ideologically necessary, at least for neoliberal governance, when planning undertaking its statutory responsibility of facilitating the public interest.     

Archaeology and conservation at Herculaneum: from the Maiuri campaign to the Herculaneum Conservation Project

Abstract

This article looks at two periods in the history of the archaeological site of Herculaneum (Italy) and the role of the archaeologist there. Amedeo Maiuri was in charge of the first major excavation campaign that uncovered the site from 1927 to 1961, but was also responsible for the site's restoration, presentation and maintenance. Much can be learnt from his approach, particularly with regard to site management – a fixed team of specialists continuously cared for the site – and his creation of what was effectively an open-air museum. The second example looks at the author's experiences with the Herculaneum Conservation Project, where the emphasis is on conservation interventions rather than excavation, but where the archaeologist has an important role in the conservation team and also has the opportunity to make new archaeological discoveries. The article concludes that the role of the archaeologist must evolve to include a professional responsibility for archaeological heritage that extends beyond its excavation.     

Addressing the new agenda for fieldwork in higher education

Abstract

Recent changes in higher education in the UK effectively make the traditional mode of fieldwork delivery unsustainable. This, coupled with criticisms of past fieldwork practices, suggests the need for a thorough re‐evaluation of the role and delivery of fieldwork programmes in contemporary higher education. A prudent place to start addressing this new agenda is an evaluation of some basic educational theory and the objectives of fieldwork. From such basic considerations, some of the contemporary problems with teaching fieldwork can be more effectively tackled and strategies for designing field exercises devised.     

Administration of parks with rack art: A symposium and workshop in Jujuy Argentina,December 2003

Abstract

Visits to archaeological sites, within school, a history or archaeology club, or a family group, are the main means for young people to engage with the archaeological historic environment. The majority of archaeological sites easily accessible for such groups are those that have been 'sanitized' for public consumption. These are often devoid of explanation of the archaeological process which made them accessible. This paper looks at the contribution that working archaeological sites can make to young people's understanding of archaeology, with particular reference to visits made by branches of the Young Archaeologists' Club, based in the UK.     

Arena symposium: equal opportunities

The Internet is a hospitable medium for distance learning. Some geography educators fear that distance education confronts the discipline with a moral dilemma, however. One, in particular, acknowledges some of the advantages of distance learning, but contends that it cannot convey the sense of place that is 'the essence of what it means to be a geographer'. This paper is concerned with the morality of distance learning. In particular, it considers educators' obligations to deliver quality education, and to make it as widely accessible as possible. The paper stresses that the key distinction between distance learning and traditional resident instruction is not the mode of delivery, nor is it the distances in time and space that separate students and teachers. Rather, it is that distance learners are a qualitatively different, older population, with different educational needs from traditional on-campus undergraduates and graduate students. The paper argues that geography educators have a moral obligation to serve lifelong learners, an obligation that should take precedence over our allegiance to conventional notions about what constitutes the essence of our field.     

New Responsibilities of Faith-Related Agencies

Nonprofit agencies with a religious base may be strongly affected by recent public policy changes; they tend to deliver services in areas where federal resources are further declining and are eligible for the special government purchase of service contracts that now may be provided to religious entities. Religious agencies also are now widely expected to deliver uniquely beneficial services and to mobilize social capital to compensate for increasing restrictions of some governmental programs. The current article reports on a qualitative, longitudinal, interview-based investigation of program changes and their relation to policy changes in a two-city sample of what are called "faith-related" agencies. In so doing, it investigates the implications of relying on religious agencies for service delivery. Making use of an extensive framework concerning how agencies are organized, the work finds that faith-related agencies mildly contribute to increased variety of service delivery styles in the examined cities, but that they rarely expand services significantly to meet increased need or otherwise provide dramatically unique service content in response to recent public policy changes. The patterns in part reflect trade-offs between fully emphasizing the unique aspects of religion and entering the public arena, and they thus question the likely role of religion in reforming social service systems.