A note on the care and handling of triremes

The authors of'Effects of shipworm on the performance of ancient Mediterranean warships'(Steinmayer & Turfa, 1996) theorise that extensive shipworm damage to warships of the ancient Mediterranean was unavoidable and would have affected naval operations and the outcome of naval battles. However, there is a significant amount of literary evidence for the care and handling of warships and for the battles in which they engaged that they have not taken into account. The purpose of this note is to bring the missing evidence into the discussion and to suggest that ancient seafarers were better able to protect their ships than Steinmayer and Turfa have allowed.     

Urban experimentation and institutional arrangements

ABSTRACT

Currently little is known about how institutional arrangements co-evolve with urban experimentation. This paper mobilizes neo-institutional literature and recent urban experimentation literature as a framework to explore how and why institutional arrangements differ across urban contexts. Empirically the paper focusses on smart city initiatives in Amsterdam, Hamburg and Ningbo. These three cities are frontrunners in adopting a comprehensive smart city agenda, but they do so in different ways. The paper examines regulative, normative and cognitive elements of institutional arrangements, explores how they shape experimentation, and reflects on their place-based specificities. The comparative analysis suggests that the focus of, and approach to, experimentation can be understood as resting in a (possibly unique) combination of strategic agency and dynamics at multiple spatial scales.     

Gender and living arrangements of the elderly in Iran

In 2006, the aging population in Iran had increased to about four million, representing about 7 per cent of the total population. We examined marital status and the living arrangements of this growing population based on a public use sample of the 2006 census and published data from the 1976 census. We observed a gender-based transition in living arrangements of the elderly; men continued to live with a spouse, perhaps through remarriage, continuing to be the head of household. The living pattern for women was noticeably different: about 20 per cent were unmarried and living alone but otherwise living with married children, predominantly sons. This analysis revealed a decline from the traditional pattern of co-residence with married children between 1976 and 2006 and an increase in solitary living among women. However, it raised several questions that need extensive research concerning the social, economic, and health status of the elderly in relation to their living arrangement.     

Regular field and tenurial arrangements in Holderness,Yorkshire

In this paper I shall argue that in a small district of Yorkshire, details of field form and holding layout in seventeenth- and eighteenth-century townships suggest that these came into being as a result of a phase of reorganization and planning. I shall also consider the possible period of this reorganization, and discuss the circumstances that may have been involved.An approach of this kind inevitably raises the problem of the extent to which landscape forms can be used as evidence of their modes of origin. It is fashionable to argue that an emphasis on morphological aspects overlooks functional and change-producing mechanisms in field systems, that such an approach tends to assume stability of form where positive evidence for change is lacking, and that identical forms can originate in different ways and at different times. On the other hand, landscape forms are often the only clues to phases of development that occurred before documentary evidence was of sufficient quantity and quality to reveal them. The value of the methodology has been particularly well demonstrated in Sweden, where more recent landscapes have been used as the basis for the identification of earlier generations of field patterns and settlements. ^[1] In England, the approach has been most successfully applied to the analysis of settlement forms. Both Roberts and Sheppard have convincingly demonstrated that an examination of regular village plans in northern England can reveal evidence of their early development. ^[2] This paper is an attempt to use a similar technique in the study of field morphology and tenurial patterns.     

Children of migrants in China in the twenty-first century: trends,living arrangements,age-gender structure,and geography

ABSTRACT

Children – including those of migrants – are China’s future. Children of migrants now make up close to 40% of all children in China. This paper analyzes the recent trends from 2000 to 2016 and the major aspects of the children of migrants by distilling data from multiple large national surveys and assessing the very small rural left-behind children (LBC) population figures published by the Ministry of Civil Affairs in 2016. The paper also develops a method to estimate the LBC population generated by migrants in each provincial destination between 2010 and 2015, linking up different but related populations (adult migrants, migrant children, and LBC) in the origins and destinations. This broader “origin-destination” framework allows us to pinpoint clearly a major driver of LBC and hence to identify provinces needing the most attention in national and provincial efforts to alleviate the problem of LBC.

Abbreviations: MC: Migrant Children; LBC: Left-Behind Children; MPR: Migration Participation Rate: LBCG: Left-Behind Children Generated     

Premaxillary suture in early polynesians

The patency of the premaxillary suture in adult humans remains controversial. Here we report on the extent and shape of the suture in 51 precontact New Zealand Maori adults (21 males, 30 females). When data were combined for both sides and also for full or more than half patency, males showed a prevalence of 44.2% and females of 33.5%. Females were found to have significantly more sinusoidal rather than V‐shaped forms. We hypothesize that the retention of the premaxillary suture into adulthood may be a neotenic feature which has allowed the Maori to achieve their uniquely large phenotype. Copyright © 1999 John Wiley & Sons, Ltd.