The Study of Archaeological Floors: Methodological Proposal for the Analysis of Anthropogenic Residues by Spot Tests,ICP-OES,and GC-MS

The identification of chemical activity residues on archaeological surfaces requires the analysis of large numbers of samples, which can be costly and time consuming. Researchers wishing to apply sediment chemistry often are confronted with a dilemma of which technique to use and how to accommodate sediment chemistry into their budget. We propose an approach to the identification of chemical activity residues in which semiquantitative spot tests, which are cheap, quick, and easy to apply, are employed as an initial phase of analysis in order to leverage the results of more time-consuming and costly instrumental techniques. Three examples that pair spot tests with gas chromatography-mass spectroscopy and inductively coupled plasma-optical emission spectrometry analysis show that spot tests successfully identify areas of interest. This approach can save both time and research funds.     

The Historical Impact of Welfare Programs on Poverty: Evidence from the American States

Over the years, there has been a spirited debate over the impact of the welfare expansion associated with the War on Poverty. Many analysts have maintained that public assistance expansion during this period decreased poverty by raising the incomes of the poor (an income enhancement effect), while others have contended that welfare expansion increased poverty by discouraging the poor from working (a work disincentive effect). There has been considerable empirical research about the historical effect of welfare on poverty, nearly all of which relies on the poverty rate (i.e., the percentage of persons with income less than the “poverty threshold”) as an indicator of the extent of poverty. However, this work has not employed designs that allow researchers to sort out distinct income enhancement and work disincentive effects. We develop a model of poverty rates in the American states that permits estimation of these distinct effects—based on state‐level time‐series data observed annually for the years 1960–90—and we find that welfare had both effects during our period of analysis. We also calculate the net impact of increases in welfare benefits on the poverty rate—taking into account both work disincentive and income enhancement effects. Our results indicate that this net impact is dependent on three variables: the initial level of cash benefits, wage levels for unskilled workers, and the share of the benefit increase provided through cash rather than in‐kind assistance. Because of historical trends in these variables, since the 1970s welfare spending has become increasingly less effective in reducing the poverty rate. However, the significance of this result for policymakers must be tempered by evidence that flaws in the poverty rate as an indicator of poverty make it so that any finding about the net effect of an increase in welfare benefits on the poverty rate underestimates welfare's ability to lessen the true extent of poverty.     

The potential of chironomid (Insecta: Diptera) larvae in archaeological investigations of floodplain and lake settlements

The head capsules of chironomids (Insecta: Diptera) are well preserved in sediments and can be recognised to a high taxonomic level, usually genus and sometimes species. Work on lake sediments has shown that they can be accurate indicators of water temperature, oxygen regimes, and nutrient status (particularly total phosphorus and chlorophyll-a), as well as heavy metal pollution. No systematic chironomid analyses, however, have previously been undertaken on archaeological deposits. In order to address this we assessed the use of chironomids in three types of archaeological deposit; firstly, a lake core at the edge of a lake settlement (crannog), secondly, a palaeochannel infill adjacent to a multi-period settlement site and lastly, a Roman well deposit from a floodplain environment. The chironomid assemblages are shown to vary significantly both between and within the sites and reflect the immediate environment and the adjacent area. The lake sediment assemblage reflects the construction of the crannog through elevated levels of organic detritus, wood and woody debris. The palaeochannel assemblage reveals changing natural conditions and nutrient enrichment probably associated with settlement during the Saxon period. The well assemblage is taxonomically restricted and indicative of organic debris, dead plant material, animal dung and possibly human effluent deposited after abandonment of the well. Dry storage of the palaeochannel and well sediments for several years did not appear to affect the concentration or state of preservation of the head capsules. The chironomid reconstructions are shown to provide an additional indicator of human activity which has the potential to provide quantitative data on the character of aquatic environments associated with archaeological sites.     

ORGANIC RESIDUE ANALYSIS IN ARCHAEOLOGY: THE ARCHAEOLOGICAL BIOMARKER REVOLUTION*

Organic residue analysis utilizes analytical organic chemical techniques to identify the nature and origins of organic remains that cannot be characterized using traditional techniques of archaeological investigation (because they are either amorphous or invisible). The field is founded upon the principle that the biomolecular, or biochemical, components of organic materials associated with human activity survive in a wide variety of locations and deposits at archaeological sites. The archaeological information contained in organic residues is represented by the biomolecular components of the natural products that contribute to the formation of a given residue. By applying appropriate separation (chromatographic) and identification (mass spectrometric) techniques, the preserved, and altered, biomolecular components of such residues can be revealed. Once identified, the Archaeological Biomarker Concept can be applied, wherein the structure and even isotopic composition(s) of a given biomolecule or suite of biomolecules (the ‘chemical fingerprint’) can be related to the compositions of organisms exploited by humans in the past. As the organic residue field emerges from its pre‐paradigmatic phase, and the organic residue revolution gathers pace, the way is open for challenging many long‐held archaeological hypotheses and offering new perspectives on the study of human activity in the past.     

NEUTRON ACTIVATION ANALYSIS OF AD 1660–1930 EUROPEAN COPPER-COLOURED BLUE GLASS TRADE BEADS FROM ONTARIO,CANADA

Blue glass trade beads from well-dated late seventeenth- to early twentieth-century sites and collections have been analysed non-destructively by instrumental neutron activation analysis. The beads display enough variations in their elemental contents to allow us to characterize the different chemistries. The implication of these results is that similar chemical analyses of blue beads from undated archaeological sites may be used to help date the sites, since each bead chemistry has a specific earliest period.     

LAND USE IN THE EASTERN ALPS DURING THE BRONZE AGE—AN ARCHAEOBOTANICAL CASE STUDY OF A HILLTOP SETTLEMENT IN THE MONTAFON (WESTERN AUSTRIA)*

Investigations of the oldest prehistoric settlement in the western Austrian county of the Vorarlberg reveal a deeper insight into the colonization of the Alps. The human presence is recorded from the Late Neolithic (c. 3000 cal. bc ) onwards, reflecting farming and possible mining activities. Three distinct settlement phases are recognized palynologically: (1) in the Early and Middle Bronze Ages (c. 1700 cal. bc ), (2) during the Iron Age (c. 500 cal. bc ) and (3) at the beginning of the medieval era (c. cal. ad 800). In addition plant macrofossil analyses of soil samples from the archaeological excavation of the Bronze Age settlement of Friaga indicate a complex subsistence strategy of the Middle Bronze Age settlers, whereby cereals and pulses reveal a balanced diet.     

A multi-proxy study of anthropogenic sedimentation and human occupation of Gledswood Shelter 1: exploring an interior sandstone rockshelter in Northern Australia

Rockshelters contain some of the most important archives of human activity in Australia but most research has focused on artifacts and cultural context. This study explores geomorphological and geoarchaeological approaches for understanding a sandstone rockshelter in interior northern Australia: Gledswood Shelter 1. At this site, magnetic susceptibility and micromorphology techniques were integrated with bulk sedimentology, soil chemistry and geochronology to better understand the record of human impact and site formation processes. The micromorphology studies indicate that primary depositional fabrics, such as graded bedding or laminations, are absent, and sediment structural development is low throughout the entire sequence, with most samples exhibiting a high degree of post-depositional mixing. The sediment magnetic susceptibility analysis reveals magnetic changes coinciding with human occupation, a result of anthropogenic burning. Specifically we highlight that combustion features are prevalent in this sandstone shelter and provide critical insights into the human usage of the shelter.     

Biodiversity and Nature Conservation: Some Common Arguments and Alternative Views

Abstract

The impact of human activities on the environment is perhaps now reaching its greatest level of awareness in human history. There is concern regarding health effects of pollutants generated by industry, climate change related to burning of fossil fuels and effects of anthropogenic activities in terms of promoting the extinction of biological species. Proposals are being put forward at local, national and international levels to preserve biodiversity. It is commonly believed that human activities, if not controlled, will lead to dramatic decreases in the earth's biodiversity. In this report, temporal perspectives of biodiversity (e.g. from palaeontology) are emphasized both as reasons for conservation and as possible errors of reasoning in conservation debates. Questions and novel implications related to an integral view of humans as a part of nature are also presented in the context of related environmental issues.     

How Did Mississippians Prepare Maize? The Application of Compound‐Specific Carbon Isotope Analysis to Absorbed Pottery Residues From Several Mississippi Valley Sites

A newly developed compound‐specific stable carbon isotope technique allows the detection of maize in absorbed organic pottery residues. This method was applied to absorbed organic residues from a variety of Mississippi Valley potsherds, and successfully identified maize components. Maize was cooked in sampled vessels less often than expected, but otherwise fitted expected patterns of maize use derived from stable carbon isotope analysis of human bone from the region. Absorbed organic pottery residue analysis is useful in determining pottery use, particularly in concert with other analytical methods.     

Chemistry: Facts not Fiction

Abstract

Brecht has said that ‘the task of science is to lighten the laboriousness of human existence’ and some examples are given of the way chemistry has contributed to this task. Yet great challenges remain – atomic war and the population explosion – and it is essential to achieve a just and informed balance between benefits and risks. Uninformed criticism of chemistry in the media is roundly condemned, and tribute is paid to antipollution measures taken by the chemical industry. The common language which unites scientists from all nations must be used to further peace and understanding in the world.     

The Gmelin Factual Databank A modern information source in chemistry and physics

Abstract

In chemistry especially, it is becoming increasingly difficult to survey the large amount of material published if poorly defined search strategies are employed – in 1991 and 1992, Chemical Abstracts cited over 500 000 publications, including reports and patents. Traditional comprehensive literature searches require a suitable perspective, a great deal of time and patience, and access to all relevant information sources. The Gmelin Factual Databank can offer improved search strategies for the scientific literature in the area of inorganic and organometallic chemistry.     

Methods of soil P analysis in archaeology

Phosphorus (P) is unique among the elements in being a sensitive and persistent indicator of human activity. It has long been of interest to archaeologists because of its potential to inform them about the presence of past human occupation and to offer clues regarding the type and intensity of human activity. A wide variety of methods have been developed in both soil science and in archaeology to extract and measure soil P, resulting in a tremendous amount of data and a wide array of interpretations, but also considerable confusion over appropriateness of methods and terminology. The primary purpose of this paper is to address these issues by clarifying soil P analyses. Anthropogenic additions of phosphorus to the soil come from human refuse and waste, burials, the products of animal husbandry in barns, pens, and on livestock paths, or intentional enrichment from soil fertilizer. Once added to the soil, phosphorus in its common form as phosphate is stable and generally immobile in soils. Soil P comes in many forms, organized for the purposes of this paper on the basis of extraction and measurement procedures as (1) extraction for available P (Pav); (2) portable field techniques (the spot test or ring test); (3) chemical digestion of a soil sample for total P (Ptot); (4) extractions of inorganic P (Pin) for fractionation studies and extractions to look at individual compounds of P; (5) measurements of organic P (Porg); and (6) extractions for total elemental analysis. To compare the suitability of various extractants as the “best” indicator of human input and activity we subjected samples from three very different archaeological sites (Lubbock Lake, TX; Hulburt Creek, IA; British Camp, WA) to four methods of soil P extraction: perchloric acid digestion (Ptot), sulfuric–nitric acid extraction Ptot), hydrochloric acid extraction after ignition (Pin), and citric acid extraction (Pav). Further, methods of measurement were compared via colorimetry vs. Inductively Coupled Plasma (ICP) spectrometry, and the two methods of supposed “total P” were both measured via ICP. In general, the stronger extractants yielded more soil P, but the result are not clear-cut. Likely variables include the intensity of occupation, nature of the parent material, and postdepositional weathering (e.g., the addition of dust).     

Comparison of fluoride and direct AMS radiocarbon dating of black bear bone from Lawson Cave,Missouri

Abstract

After a 20-year hiatus (1955–1975) during which few archaeologists discussed fluoride dating, the method again received attention in the 1980s and 1990s when some argued for its validity. As a dating method, fluoride dating depends on the rate at which fluorine ions replace hydroxyl ions in osseous tissue. The rate of replacement is influenced by the properties of the skeletal part (SP), sediment chemistry (K), and sediment hydrology (H), and the replacement rate influences estimates of time. Calibrated AMS radiocarbon assays of 10 black bear (Ursus americanus) femora from a natural-trap cave in central Missouri are weakly correlated with fluorine concentrations, determined by neutron activation analysis in the 10 femora. Despite minimal variation in SP, K, and H, results indicate fluoride dating can be considered a valid dating method only in cases when the chronological validity of its results are confirmed with independent chronometric data. As similarities in fluorine amounts across specimens increase, provenience information and bone orientation data as well as fine resolution data on K and H become critical to the application of fluoride dating.     

Phosphates, plowzones, and plazas: a minimally invasive approach to settlement structure of plowed village sites

Inferences about settlement structure play an important role in explanations of social and political change in Late Prehistoric eastern North America, but ethical and logistical challenges posed by extensive horizontal excavations mean that archaeologists must develop low cost, minimally invasive methods for investigating key properties of village structure. There are two important components of most villages in the region: 1) the peripheral distribution of middens; and 2) the size and location of formal communal spaces or plazas, each of which leaves traces in soil chemistry. In shallowly buried, plowed village sites where artifacts have been physically displaced, the chemical signature of middens may be more resistant to disturbance and provide an enduring signature of ancient settlement structure. We conducted a systematic soil phosphorus survey at the Reinhardt Site (33PI880) in central Ohio, the primary occupation of which occurred during the Late Prehistoric Period (ca. AD 1200-1450), to test for the presence and approximate size of a central plaza and the shape and distribution of peripheral midden deposits. Soil samples from the modern plowzone (N = 131) were analyzed for Mehlich II extractable phosphorus using molybdate colorimetry. The interpolated phosphorus distributions indicate a clear ring midden approximately 90 m across with an internal plaza that is roughly 30 m × 40 m. Artifact distributions from a shovel test pit survey and interpolations of plowzone magnetic susceptibility measurements identify the location of the village but are ambiguous with regards to village size and do not clearly distinguish the central plaza. Our results suggest that systematic surveys of soil phosphorus are a rapid, minimally invasive, and inexpensive method for generating data on the size and shape of villages and their plazas.     

Evaluating protein residues on Gainey phase Paleoindian stone tools

Blood protein analysis provides a method for acquiring and interpreting archaeological data bearing on human–animal relationships. The present study makes use of cross-over immunoelectrophoresis (CIEP) and a large sample of stone tools (N = 130) from an early Paleoindian site pertaining to the Gainey phase (ca. 11,200 BP) of the Midwestern USA. Results are used to interpret toolkit organization and site structure, and indicate that hafted tools with longer use-life potentialities are more likely to be associated with preserved residues than are tools of a more ad hoc or situational character. Protein residues derived from cervids are the largest category of identified samples, a result consistent with an interpretation that these animals were important first-line resources of Gainey phase populations. The identification of caribou (Rangifer sp.) is notable. Interpretations of subsistence importance, however, must be tempered by an appreciation of the possible confounding effects of tool manufacture and maintenance in early Paleoindian contexts.     

Perspectives and sensitivities: teaching as the creation of conditions of possibility for geographic thinking

Abstract

Teaching methodological courses means providing students with general ideas to think with, rather than specific facts to think about. Rethinking the teaching task must be informed by an awareness of ideological, philosophical, technical and analytical perspectives, and should look for basic themes uniting apparently different approaches. Almost all quantitative methodologies are actually specific examples of the mathematical operation of mapping. Genuine understanding is achieved by visualisation of a problem, rather than algebraic manipulation, and the teaching task could be aided greatly by employing the power of interactive computer graphics. It is suggested that the analytical and pedagogic approaches used by experienced teachers might be shared initially in an international conference, and so form the basis for more effective and efficient teaching in the future.     

Industrial Warriors: South Korea’s First Generation of Industrial Workers in Post-Developmental Korea

This study analyses the skills upgrading programmes of South Korea’s first generation of skilled workers, focusing on their political and social trajectories from bulwarks of the developmental regimes up until 1987, to a “labour aristocracy” of regular workers employed mainly in large companies in heavy industries in South Korea. The term “labour aristocracy” highlights how the “regular workers”, employed mostly in monopolistic large enterprises in heavy industries, have better wages, job security and other social benefits than “non-regular workers” and other regular workers employed in small and medium companies. It argues that these “Industrial Warriors” were the product of the Korean developmental state’s creation of an egalitarian social contract, and that the political and social trajectories since then must be seen in its totality. This is necessary because it manifests the profound change in Korea’s political economy from state-grassroots synergistic developmentalism to neoliberal industrial capitalism, wherein having a regular job has become a substantial asset in an era of non-regular employment. This study contributes to the literature on the political economy and to sociological discussion of the Korean developmental state that continues to this day and is far from over.     

MOLECULAR AND ISOTOPIC DEMONSTRATION OF THE PROCESSING OF AQUATIC PRODUCTS IN NORTHERN EUROPEAN PREHISTORIC POTTERY*

A number of charred surface residues, adhering to ceramic containers, were obtained from various coastal and inland sites in north‐west Europe dating from the sixth to the fourth millennium cal bc . In order to investigate the use of these vessels and in particular to identify any marine products, the residues were subjected to carbon and nitrogen stable isotope analysis. Variation in carbon isotope ratios between different samples indicated that some vessels may have been used to process marine products. This analysis was corroborated by specific identification of aquatic products following structural and isotopic characterization of lipids extracted from selected samples.     

Les sermons sur saint Antoine et le bon usage de la prédication comme ‘vertu’

Abstract

One of the main reasons for Saint Anthony of Padua’s holy fame and reputation is his activity as a preacher. This article begins with a review of the hagiographical legends referring to preaching as a virtue or gift of divine grace, and the importance of Iulianus of Speyer’s works in spreading the concept of preaching as a virtue is hightlighted. Then follows a discussion of a series of texts written between about 1250 and 1350, which seeks to shed light on the identification of recta et fructuosa praedicatio (right and fruitful preaching activity) with Anthony’s wisdom (sapientia) or knowledge (scientia). It can be seen that this message was expounded over a relatively broad timespan from the 1280s onwards. There is also evidence of an interdisciplinary problem, which seems to involve not only the preachers belonging to the Order of Friars Minor, but also those who were called to preach to them from outside the Order itself. Three possible reasons for the appearance of preaching on the list of virtues are suggested. It may have originated from the attempt to assimilate contemporary preachers with the model of holiness provided by Anthony or from an effort to create a counterbalance to the vices of the tongue that were supposed to plague the preachers’ audiences. It may also be an indicator of a more general debate on praedicatio as a gift of divine grace in opposition to those who believed it was merely the result of a studied technique.     

Asymmetry and activity-related change in the male humerus

Some previous studies of activity-related change in the human skeleton have been of doubtful validity because specific changes have been related to particular tasks. Claims to establish such relationships have often concentrated on the development of entheses. Such work is marred by the incorrect assumption that muscles work in isolation in the performance of a single activity. In addition, normal skeletal asymmetry is often ignored, as is age and sex. In the present work, paired humeri of males from two medieval British sites, Norwich and Henry VIII's flagship, the Mary Rose, were compared using a series of measurements. Comparison of left and right sides demonstrated that humeral asymmetry decreases with age. Comparison of the sites showed that the Norwich males were more asymmetric than those from the Mary Rose. All asymmetries exhibited a right-sided dominance. The majority of the species is right-handed: the Norwich males followed this trend. The general lack of asymmetry in the Mary Rose males suggests that they were using their arms more equally. When left and right sides were compared directly, a new measurement of the greater tubercle (where three muscles insert) and measurement of the diameter of the head demonstrated that the Mary Rose males had significantly larger dimensions of the left shoulder than the Norwich males. These results extend earlier work, which had suggested a correlation between the use of heavy medieval longbows and os acromiale. Statistical comparison of the sites demonstrated that such work can indicate patterns of activity but not individual occupations.