Mortality analysis of the Late Pleistocene bears from Grotta Lattaia,central Italy

Reported here are the results of a mortality analysis of an Ursus spelaeus death assemblage from Grotta Lattaia, southern Tuscany (central Italy), excavated in 1939. The Grotta Lattaia cave bears are among the latest representatives of the species. The large amount of cave bear remains indicates that the cavern was a lair for hibernating bears which repeatedly, but not necessarily yearly, occupied it. The mortality evidence indicates that deaths occurred primarily during hibernation from violent predation, and, therefore, that the bears had direct interaction with other carnivores. However, no sign of interrelation with humans could be found, even though Middle Paleolithic human remains and tools had been recovered associated with the bear material. Grotta Lattaia can be thus considered an example of cumulative, non-human-caused violent deaths in a hibernation context.     

New evidence for the Mousterian and Gravettian at Rio Secco Cave,Italy

Abstract

The dearth of evidence for late Neanderthals in Europe reduces our ability to understand the demise of their species and the impact of the biological and cultural changes that resulted from the spread of anatomically modern humans. In this light, a recently investigated cave in the northern Adriatic region at the border between the Italian Alps and the Great Adriatic Plain provides useful data about the last Neanderthals between 46·0 and 42·1 ky cal b.p. Their subsistence is inferred from zooarchaeological remains and patterns in Middle Palaeolithic lithic technology. Unexpected evidence of the ephemeral use of the cave during the early Upper Palaeolithic Gravettian period shows a change in lithic technology.     

Comparison of Two Methods of Estimating Age at Death in a Chilean Preceramic Population

A method of histological determination of age at death, using the anterior cortex of the femur, was tested on a group of adult Preceramic skeletons from Chile (ca. 3300–3000 years BP). These skeletons had been previously studied by another investigator who assigned sex and morphological ages. Comparison of the results of the two methods of ageing indicates that, although there is considerable agreement between them at younger ages (20–39 years), discrepancies increase at older ages. It is clear that the morphological method is ‘truncated’, i.e. it does not take into account the possibility that some individuals could live past the age of 45 years. On the other hand, the open-ended histological method gives a realistic age range of 20–65 years for the Preceramic group, but an unrealistic number of individuals are aged 50 years and older. It is concluded that, in spite of certain advantages, the histological method must be used with caution in archaeological studies because exfoliation of peripheral unremodelled bone lamellae can cause over-ageing as deeper, more remodelled areas come to lie nearer the periosteal surface. © 1997 by John Wiley & Sons, Ltd.     

长春市人口老龄化时空演变及空间类型研究

构造了一个由数量老龄化、结构老龄化和密度老龄化三个指标所组成的综合老龄化指数（CAI）,并建立了一套人口老龄化空间类型划分方案,运用多尺度空间自相关分析对长春市人口老龄化空间的时空演变及空间类型进行研究。结果表明：①长春市近10年出现了老年人口郊区化的趋势,人口老龄化空间的“中心-边缘”分布格局在10年内没有发生显著改变,但空间扩散趋势十分明显,东部和南部近郊区出现了明显的人口老化趋势。②长春市形成了残留老化、集聚老化、自然老化和集聚稀释四种不同的人口老龄化类型区。城市核心区和远郊区形成以非老年人口大量流失为基本特征的残留老化型地区,而近郊区则形成以年轻人口大量涌入为特征的集聚稀释型地区,人口老龄化空间整体上呈现出一种城市中心区和远郊区的老化程度高于近郊区的夹层结构。     

REMEASURING AGEING IN SOUTHEAST ASIA

It is a commonly held view that Southeast Asian societies are ageing rapidly. This has led to a high level of policy concern about the future capacity of states to cope with increased levels of ‘old-age dependency’ which, at first glance, often appear almost unmanageable. We suggest that the rates employed to demonstrate the present/future scale of ‘old-age dependency’ are misleading and based upon a Eurocentric notion from a bygone era. Arguing that these measurements both omit changes in life expectancy and fundamentally misconceptualise ‘old’ and ‘dependent’, we present a new series of comparative measurements based upon a dynamic view of remaining life expectancy and a more accurate concept of what it means to be ‘dependent’. These measurements simultaneously provide a more realistic and optimistic view of the future challenges of ageing in Southeast Asia.     

Ungulates and the Middle-to-Upper Paleolithic transition at Grotte XVI (Dordogne, France)

Grotte XVI (Dordogne, France) contains a rich archaeological sequence that begins during the Mousterian and continues through the Magdalenian and includes Châtelperronian and early Aurignacian assemblages. Analyses of the ungulates from this site show no significant change in skeletal part representation, butchering intensity (as measured by cut mark numbers and placement), degree of bone fragmentation, and intensity of carnivore damage across the Middle-to-Upper Paleolithic transition. Relative taxonomic abundances of ungulates change significantly from the Mousterian to the early Aurignacian, but these changes are consistent with climatic forcing and continue throughout the sequence. Only the Magdalenian ungulate assemblage is clearly distinct from all others when examined in terms of these variables, perhaps because of altered predator/prey ratios on the local landscape. Cave bear relative abundances decline precipitously across the Middle-to-Upper Paleolithic transition; this decline may reflect increased human residence times and/or group sizes during this interval, just as Kurtén observed many years ago.     

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.     

Age estimation from the pars basilaris of the fetal and juvenile occipital bone

The pars basilaris of the human occipital bone is reported to be of considerable value for age estimation in juvenile skeletal remains between early fetal periods and 6 years of age, when it fuses to the remainder of the bone. The aim of this investigation was to examine the relationship between various dimensions of the pars basilaris, and assess their reliability for accurate age estimation. The results confirm the usefulness of the bone in this respect and they are discussed in the light of differential growth of the pars basilaris, and in the increase in dimensions of the boundaries of the foramen magnum.     

Ageing and Dependency in India

This paper modifies the measurement of dependency and applies it to the Indian situation at the state level. It is generally believed that the aged are a burden on the family and the nation as they do not contribute to the national income. This is not always true. In India: 40 per cent of those aged 60 and over are working, which rises to 61 per cent in the case of males. On the other hand, there are adults (age group 15–59) who are not working and are dependants. In the measurement of dependency, adjustments for these factors are essential. This study employs three measures of dependency, namely (i) old age economic dependency, (ii) adult dependency and (iii) relative dependency. Based on these dependency ratios, inter-state variations and gender differentials in dependencies have been studied. The study shows that relative dependency of the old age population is lower than the adult population, and the opportunity of harvesting the demographic window is being missed in India.     

Health prospects of older persons in Thailand: the role of education

ABSTRACT

Thailand’s population is aging rapidly and the number of older adults suffering from health limitations is expected to increase. Making use of several rounds of the Survey of Older Persons, we look at the education-specific prevalences of three health indicators over time and find a positive education gradient for difficulties with ADLs and poor self-rated health, but not for functional limitations. Combining these age-, sex- and education-specific prevalences for each indicator with population projections up to 2050, we see a lower projected number of persons with difficulties with ADLs or bad health as compared to an approach when we only account for differences by age and sex. Still, irrespective of the approach taken, we project a significant increase in the number of persons 50+ that have at least one ADL difficulty, at least one functional limitation or suffer from poor health. Our results provide estimates for future care needs and illustrate the possibly preventive effect of education.     

Generations,Mobility and Community: Geographies of Three Generations of Greek and Italian Ancestry in Sydney

Geographies of three generations of Greek and Italian ancestry in Sydney totalling 245 000 people in 2001 are identified. A model of community sequences is developed within a conceptual framework of intergenerational spatial, occupational and social absorption. Considerable intra‐ and inter‐generational occupational mobility took place and the third generations showed higher proportions as managers, professionals and associate professionals than persons of Australian ancestry. Second and third generations had occupational profiles which were much closer to the host society than the first generations. Despite occupational mobility, employment, residential and social trends associated with the first generations affected the adult second generations and to an extent the third. Several thousand members of three generations re‐grouped into successive local communities, patronised facilities in core communities, and maintained place identities.     

IMPACT OF POPULATION AGEING ON INDIA'S PUBLIC FINANCE

This paper integrates the methodology of the National Transfer Accounts and Budget Forecasting Model to compute and forecast the impact of population ageing on India's public finance from 2005 through 2050, based on the fiscal structure in 2004–2005. The empirical results are new and have useful policy implications. The forecasted increase in the share of total public expenditure on elderly individuals is largely accounted for by expenditure on civilian pensions and other cash transfers, government services, and poverty and other social protection. Elderly individuals are found to be not very expensive in terms of public health expenditure. Tax revenues increase and result in a decline of debt-to-GDP ratio because population ageing does not lower tax buoyancy in the long run. Overall, the increasing total budget surplus and fiscal support ratio implies that the long-term impact of population ageing may be fiscally sustainable.     

The effects of ageing and urbanisation on China’s future rural and urban populations

This paper estimates China’s future population and labour force by developing a novel forecasting model for population. It combines information about age-specific parameters on fertility and mortality for both rural and urban areas using information about rural–urban migration and the transformation of rural areas into urban ones. This model takes into account the effects of urbanisation on changes in the age structure of the Chinese population; and provides separate projections on the rural and urban populations. Our findings show that (i) the shares of people aged 65 and over, in China’s rural and urban populations, will double between 2010 and 2030; this implies that the ageing problem in rural areas will continue to be more serious than in urban areas; (ii) the rural labour force will shrink by 45 per cent, between 2010 and 2030, while the urban labour force will grow by 34 per cent; and (iii) China’s urbanisation rate will increase to 71 per cent by 2030.     

THE HEALTH OF OLDER WOMEN AFTER HIGH PARITY IN TAFT,IRAN

High parity has been hypothesised to lead to a shorter and less healthy life. Using the 2007 Taft Ageing Health and Fertility Survey consisting of 696 women aged 50–79, this paper examines the extent to which women's health in middle and older ages is affected by their childbearing histories. The results show that high parity (>8) is associated with a reduction of GP-rated health by 0.094 points on a scale from 1 to 10. These health reductions are four times as large as those of an extra year of age, and are robust to controlling for birth interval, age, area of residence, education, marital status, work history, economic satisfaction and surviving daughters. There is a positive but curvilinear relationship between shorter birth intervals (<2 years) and GP-rated health accounting for socio-demographic factors. Our analysis suggests that parity and birth intervals, along with socio-demographic characteristics, affect women's well-being in later life.