THE POTENTIAL MISUSE OF GENETIC ANALYSES AND THE SOCIAL CONSTRUCTION OF 'RACE'AND 'ETHNICITY'

The analysis of genetic material (such as DNA) has been attracting considerable attention for at least a decade. Recent years have seen the first application of genetic analysis to archaeological problems. In some circles DNA seems to be seen as a panacea for all ills. There is, however, little consideration of the methodological problems inherent in extrapolating from genetic information to ancient populations. In particular the assumption that genetic differences equal ethnic differences is challenged. The ethical implications for such research do not seem to have been addressed within the archaeological community.     

MAPPING OF THE POPULATION POTENTIAL

The development of the population potential model and its use both in the Soviet Union and abroad are reviewed. A formula proposed by O. D. Duncan, incorporating the so-called inner potential (equivalent to the actual population) in the formula for the population potential of a region or place is found to yield exaggerated high values for population centers. Interpolation of potentials on the basis of such peak values leads to considerable distortion of reality, as does the use of transport distance instead of straightline distance between interacting places. The author develops new formulas for the construction of population potential maps in an effort to refine the technique and extend its applicability to large-scale mapping.     

THE IMPACT OF RELATIVE DEPRIVATION ON RETURN INTENTIONS AMONG POTENTIAL MIGRANTS AND COMMUTERS

We empirically analyze the impact of relative deprivation on the intended duration of stay of potential cross‐border commuters and migrants. A theoretical model lends support to the hypothesis that deprivation affects the intended duration of stay of migrants in a U‐shaped fashion, but does not affect potential commuters. Empirical evidence from one of the most densely populated border regions of the EU confirms both these hypotheses. These results are robust over different estimation methods and apply both when measuring deprivation relative to friends and acquaintances as well as relative to the population residing in a region.     

ECONOMIC GEOGRAPHY WITHIN AND BETWEEN EUROPEAN NATIONS: THE ROLE OF MARKET POTENTIAL AND DENSITY ACROSS SPACE AND TIME*

ABSTRACT In explaining the uneven spatial distribution of economic activity, urban economics, and new economic geography (NEG) dominate recent research in economics. A main difference between these two approaches is that NEG stresses the role of spatial linkages whereas urban economics does not do so. We estimate simple versions of these two views on economic geography and also establish if the relevance of spatial linkages varies across aggregation levels or time. For our sample of 14 European countries and 213 corresponding regions, we find that spatial linkages are more important at the country level and that its relevance varies across time.     

THE POTENTIAL MOBILITY OF HUMAN POPULATIONS

Summary. The interpretation of the findings of archaeological surface survey involves making assumptions about the extent and limits to the mobility of communities, land, and individuals in past times. Recent work in medieval and early modern European history has established both the rates and the causes of mobility in a number of different communities. This paper assembles some rather less conclusive evidence from classical Greece to argue that relatively high rates of mobility of individuals, land and communities should not be excluded when a picture of the society of ancient Greece is conjured up.     

DAMMING JAMES BAY: I. POTENTIAL IMPACTS ON COASTAL CLIMATE AND THE WATER BALANCE

The proposed grand Canal project calls for the damming of James Bay and the diversion of its water southward. This first part of a two-part study models some potential impacts on the climate, water balance, and growth patterns in the James Bay coastal zone. Use is made of a linear relationship of Bowen ratio and temperature, developed from studies of coastal wetlands in southern and northwestern James Bay and central Hudson Bay. It is hypothesized that changing James Bay into a fresh-water lake and disrupting its coastal currents would result in a delayed Bay ice melt of unknown length in the spring. Allowing a delay to vary between 0 and 30 days results in the prediction of lesser evaporation and greater water surplus. These differences in magnitude increase with the length of delayed melt, but in all cases are most strongly evident during the peak of the growing season. Colder and wetter conditions would have a strong ecological impact on all coastal areas of western and southern James Bay. In the northwest this could change the species composition of coastal flora, cause forests to retreat from the coast, and result in the growth of permafrost there.     

EXPERIMENTAL EVALUATION OF SAMPLE‐EXTRACTION METHODS AND THE POTENTIAL FOR CONTAMINATION IN CERAMIC SPECIMENS*

Contamination of ceramic specimens resulting from sample‐preparation techniques has the ability to confound efforts of chemical characterization. Primary contamination, identified by significant concentrations of one or more elements, is easily identified. Secondary contamination, resulting from undetected elements influencing detected elements, is more difficult to identify. Evaluation of six powder‐extraction techniques identifies variable effects of contamination. Extraction by drilling carries the highest risk of contamination. The grinding of specimens with silicon‐carbide wheels may artificially deplete abundances by introducing Si and C. Grinding specimens in an agate mortar and pestle is found to be the technique least likely to result in contamination effects.     

POTENTIAL MAGNETIC SUSCEPTIBILITY AND FRACTIONAL CONVERSION STUDIES OF ARCHAEOLOGICAL SOILS AND SEDIMENTS*

Potential magnetic susceptibility (χ_MAX) and, hence, fractional conversion (χ_CONV) are shown to be critical in interpreting low‐frequency mass‐specific magnetic susceptibility (χ_LF) data. Results presented from 29 sites in the UK and one in Hungary encompass six types of investigation: Quaternary sedimentary stratigraphies, archaeological contexts, surveys of old ground surfaces, topsoil surveys of lithic scatter sites, topsoil prospection surveys and ‘natural’ topsoils. The findings highlight the wide range of χ_MAX values that may be encountered; identify factors affecting χ_MAX; demonstrate that χ_CONV provides a measure of enhancement resulting from burning; and identify environments in which χ_LF analysis is likely to be problematic.     

UNDERSTANDING SPATIAL INERTIA: CENTER OF GRAVITY,POPULATION DENSITIES,THE WEBER PROBLEM,AND GRAVITY POTENTIAL*

ABSTRACT. In this paper we attempt to clarify the theoretical links between the concepts of “center of gravity” and “point of maximum population density” which describe the present, and the concepts of “minimum of the comprehensive Weber problem” and “maximum comprehensive gravity potential” which guide the future. Critical values of the characteristic parameters of the relevant functions are estimated. Implications for the understanding of spatial inertia are discussed.     

RESEARCH STRATEGIES FOR EVALUATING THE ADOPTION POTENTIAL OF ENERGY TECHNOLOGIES*

The completely novel nature of some energy technology innovations sometimes makes prospective economic analysis of adoption potential neither desirable nor feasible. Three noneconomic models evaluating adoption potential are examined for technological innovations whose diffusion potential is not yet known. Applications of the general models are suggested with specific references to development of solar total energy systems.     

TOWARDS REALISING THE FULL ARCHAEOENVIRONMENTAL POTENTIAL OF RAISED (OMBROTROPHIC) MIRES IN THE BRITISH ISLES

Summary. Raised mires represent a unique resource for the study of past peoples within their changing landscape context. However, present palaeoecological and archaeological approaches to these landscapes within the British Isles have followed largely separate agendas. Palaeoecological study has generally been focused on themes of climate change, using a range of techniques to derive information relating to changes in surface wetness of raised mires over time. In contrast, archaeological study has been broadly limited to themes of preservation and site recovery. This paper argues that the integration of the methods employed within both disciplines can enable an investigation of context unattainable for the majority of archaeological sites. A case study illustrates the recursive nature of human-environment relations in a raised mire system in Ireland.