Preliminary evidence for seasonal deposition patterns from member 2 of the Swartkrans hominid site,South Africa

Frequencies of specimens in juvenile age classes, based on an analysis of tooth eruption and wear sequences, in specimens of an extinct species of springbok, Antidorcas bondi Wells and Cooke, from Member 2 of the Swartkrans hominid site, suggest that the remains of this animal were deposited during summer months. These indications of seasonal activity may offer support for previous suggestions of annual game movements. Such periodic movements have implications for our understanding of the behaviour patterns of the animals, including perhaps the hominids, which are represented in the assemblages from Swartkrans and other sites in the vicinity.     

Concealed Communities: The People at the Margins

The “concealed communities” of our title are the people archaeologists have often labeled as “marginal.” Archaeologists writing about both prehistoric and historic periods have commonly made a range of assumptions about margins and marginality, and their discussions have often categorized marginality as ecological, economic, or socio-political. Whilst it has been common to privilege one or other of these categories in order to explain how societies worked, they are rarely mutually exclusive. In addition, since marginality is relative, virtually any group might be made marginal depending on people’s perspectives in the past or present. Sometimes marginality can be imposed (economically or politically), and sometimes even actively chosen. Defining the “margin” is a complex business, and the term needs sensitive, context-orientated use to make it useful for archaeologists.     

Middle‐east,Midwest

Barbara C. Asward, ed. Arabic‐Speaking Communities in American Cities. New York: A joint publication of the Center for Migration Studies of New York, Inc., and the Association of Arab‐American University Graduates, Inc., 1974. vii + 191 pp. Appendix.     

EXITS FROM HOMEOWNERSHIP: THE EFFECTS OF RACE,ETHNICITY, AND INCOME*

ABSTRACT This paper examines the extent to which populations experiencing low homeownership rates in the U.S. also experience high homeownership exit rates. We determine whether low‐income Hispanic and black households that achieve homeownership are as likely as white and high‐income households to sustain it. Using the Panel Study of Income Dynamics spanning the years 1970–2005, we find that low‐income homeowners consistently have higher homeownership exit rates, Hispanic households have higher raw exit rates prior to but not subsequent to 1997, and a black/white sustainability gap appears to arise post‐1997.     

Taking risks in regions: the geographical anatomy of Europe's emerging venture capital market

Over the past 25 years, the USA has pioneered a new technologicalrevolution, based on large numbers of new small enterprises,financed by a dynamic venture (risk) capital market. The EuropeanUnion, meanwhile, has lagged behind in this sector of economicactivity, and compared to the US innovative small and mediumenterprises appear to find it more difficult to get startedand grow. At a time when regional and local banking systems– traditionally major sources of capital for small andmedium sized enterprises across Europe – are undergoingintense reorganisation and restructuring, the European Commissionconsiders the development of a substantial risk capital marketto be a key condition for closing the ‘enterprise gap’with the US. While the venture capital industry is much lessdeveloped in Europe than it is in the US, nevertheless it hasrecently experienced a marked increase in activity. But whereasthe European Commission argues that venture capital activityneeds to be much more regionally clustered if it is to emulatethe US experience, the OECD and some EU member states have arguedfor a more even regional distribution. The aim of the paperis to chart the growth and geographical anatomy of the emergingEuropean venture capital market, and to examine its spatialdevelopment and regional implications in the context of thesesomewhat opposing views.     

Genetic relationships based on discrete dental traits: Basketmaker II and Mimbres

Investigations of the relationships between culture and biology among prehistoric populations of the southwestern United States can enhance our reconstruction of social interactions. The present study analyses the permanent dentition of Basketmaker II and Mimbres individuals from multiple sites using the Arizona State University dental anthropology system, and compares them with a regional sample. Discrete dental trait analysis provides a useful means for assessing the degree of genetic relatedness between populations when large comparative samples are available. Both in situ cultural change and population replacement have been posited as the dominant mechanism acting on Basketmaker and early Puebloan groups. We examine the relationship of these populations to probable Uto‐Aztecan speakers in light of the Uto‐Aztecan farmer migration hypothesis. The Basketmaker II complex, traditionally recognised as a distinct cultural unit, exhibits considerable population heterogeneity. Western Basketmakers appear to share biological ties with Uto‐Aztecan speakers, while Eastern Basketmakers do not, as predicted by the model. The relationship of the Mimbres to probable Uto‐Aztecan speakers is less clear because the Mimbres show only weak affinities to northern Mexican populations. Copyright © 2007 John Wiley & Sons, Ltd.     

Sub‐micron spongiform porosity is the major ultra‐structural alteration occurring in archaeological bone

Total pore volume and pore size distribution are indicators of the degree of post‐mortem modification of bone. Direct measurements of pore size distribution in archaeological bones using mercury intrusion porosimetry (HgIP) and back scattered scanning electron microscopy (BSE‐SEM) reveal a common pattern in the changes seen in degraded bone as compared to modern samples. The estimates of pore size distribution from HgIP and direct measurement from the BSE‐SEM images show remarkable correspondence. The coupling of these two independent approaches has allowed the diagenetic porosity changes in human archaeological bone in the >0.01 µm range to be directly imaged, and their relationship to pre‐existing physiological pores to be explored. The increase in porosity in the archaeological bones is restricted to two discrete pore ranges. The smaller of these two ranges (0.007–0.1 µm) lies in the range of the collagen fibril (0.1 µm diameter) and is presumably formed by the loss of collagen, whereas the larger pore size distribution is evidence of direct microbial alteration of the bone. HgIP has great potential for the characterization of microbial and chemical alteration of bone. Copyright © 2002 John Wiley & Sons, Ltd.