The changing biosphere: recent insights from paleoenvironmental science into drivers,mechanisms and impacts

Paleoenvironmental science has experienced a recent surge in interest and activity as concerns grow over global environmental change. Key research questions in the biotic realm of paleoenvironmental science focus on explaining climatic change at time scales of decades to centuries and understanding ecosystem responses to these changes. Biotic responses are increasingly being studied at smaller spatial scales to identify local factors that determine the sensitivity of a particular system to climatic change. These findings can then be applied to solving a variety of problems, such as setting conservation targets or testing mechanisms for observed climatic and biogeographic phenomena. Research approaches commonly used today include hypothesis testing, which has now become more sophisticated as paleoecologists and paleoclimatologists integrate with modellers. Other frameworks involve the quantitative integration of multiple proxy indicators and the use of extensive publicly available data networks to produce new datasets for paleoclimatic reconstructions and other applications.     

Political economy,demography and development in Australia's Northern Territory

The Canadian ‘staples thesis’ literature has documented both the risks (in the tradition of Harold Innis) and the opportunities (in the tradition of W. A. Macintosh) inherent in economies that are dependent on the export of minimally processed natural resources. The key risk is that of retarded long‐term growth as a result of a lack of diversification and over‐dependence on foreign capital and markets. This article argues that the demographic consequences of staples approaches to development also make it difficult to achieve diversification. It profiles Australia's Northern Territory as an example of a mining‐dependent (fiscal) economy that demonstrates a particular demographic profile consistent with what might be expected of a resource frontier. The article argues, however, that restrictive demographic characteristics persist (high sex ratios, high population mobility, disadvantaged position of indigenous people and remote dwellers) even though mining has become an insignificant direct employer (less than one percent of the workforce) and the services sector drives the labour market. This persistence can be linked to the Territory and federal government expectations of economic development patterns in the region and the frontier mythology created around the Northern Territory. Addressing the demographic imbalance is a critical step towards realizing ambitions for economic diversification.     

Is it time to start worrying more about growing regional inequalities in Canada?

Much has been written recently about the rise of within-country inequality and growing imbalances of regional fortunes in the United States and the European Union. In this paper, we apply a novel geo-visualization technique that combines local indicators of spatial association with directional statistics to a unique dataset in order to explore the spatial dimensions of regional income inequalities in Canada from 1981 to 2016. After describing a pattern of growing spatial divergence among regions, we briefly discuss the need for the federal government to explore new types of place-sensitive development policies.     

Environmental Accounts for Land Cover: Their Contribution to 'State of the Environment' Reporting

This paper critically reviews the way land-cover stock and change data are used for 'state of the environment' reporting. The paper considers the relative merits of the indicator approach as opposed to one based on natural resource accounting. It is shown that indicators have a number of shortcomings as measures of the sustainability of land-cover change, and that land-cover accounts offer a more rigorous framework in which to develop and test policy. The argument draws upon the experience gained in the preparation of land-cover accounts for Great Britain using data from Countryside Survey 1990.     

纸张理化指标与老化时间的统计学分析

为了探究纸张的保存寿命,本项目对竹纸、宣纸、新闻纸、字典纸和构皮纸等5种纸张进行了干热加速老化实验,并对老化前后纸张的主要理化指标(返黄值、抗张指数、撕裂指数、耐折指数、聚合度、铜价和冷抽提pH值)进行检测。最后通过Pearson等级相关系数研究了上述理化指标与老化时间的相关性,从而揭示出纸张保存寿命预测的方法。研究发现5种纸张的抗张指数、铜价和聚合度与老化时间的相关性都较好。分别各有4种纸张的返黄值、冷抽提pH值和撕裂指数与老化时间的相关系数都在0.9以上,相关性非常好。仅有一种纸张的耐折指数与老化时间的相关性较好。本研究的结果对于大多数纸张保存寿命的预测具有参考价值。     

Non‐specific indicators of stress and their association with age at death in Medieval York: Using stature and vertebral neural canal size to examine the effects of stress occurring during different periods of development

Selective mortality can occur towards individuals who survive episodes of physiological stress, such as disease and malnutrition, during development. The skeletal elements affected depend on the timing of these stressful episodes. Studying multiple non‐specific indicators of stress can show which periods of development were affected and whether certain periods can be linked with selective mortality. To examine this method a preliminary study of 61 adult individuals from the Medieval population of Fishergate House, York was undertaken to examine small vertebral neural canal size and reduced adult stature. Previous studies have shown that selective mortality occurs towards individuals who display these non‐specific indicators of stress. Statistical analysis showed that small transverse neural canal diameter was significantly associated with early adult mortality for males and females and there was evidence of selective mortality towards females with reduced stature. This suggests that individuals who died in early adulthood experienced health insults during late childhood which stunted VNC growth but males in particular were not significantly affected by health insults after this age as they achieved a normal adult stature. Therefore it appears that health insults which occurred during late childhood had a greater influence on adult health in the Fishergate House population. This method could be expanded to provide more detailed information by using a greater variety of non‐specific indicators of stress which will allow more specific periods of development to be investigated. Copyright © 2010 John Wiley & Sons, Ltd.     

国际金融危机对世界国际旅游业发展的影响研究

国际金融危机对世界国际旅游业影响的传导机制是什么？对其影响进行科学分析与预测的指标是什么？其影响的状况与特点是什么？其影响的趋势及我国的对策又是什么？本文运用国际经济学与旅游经济学原理,收集分析世界经济与世界国际旅游业发展的统计资料,对具有代表性的旅行社、旅游饭店与旅游景区点进行调查研究,同时对我国国际化程度最高的世界著名旅游城市香港进行比较研究,从而回答上述问题。本文的主要内容包括：（1）国际金融危机对世界国际旅游业发展影响的传导机制与分析预测指标的构建与验证;（2）国际金融危机对世界国际旅游业发展影响的现状、特征与趋势,以及我国的对策研究。     

EXPERIMENTAL ASSESSMENT OF THE GLOBAL CYCLIC DAMAGE OF FRAMED R/C STRUCTURES

It is accepted that failure criteria for earthquake-resistant structures should be based on energy dissipation as well as on maximum ductility. Even though rational procedures to include low-cycle fatigue in the definition of the design spectra have been derived, major difficulties arise in the definition of the cyclic damageability of the structure. The work conducted so far was mainly based on cyclic tests conducted on simple structural elements, therefore, the extension to the complete structure is not an easy task. A final cyclic test was conducted at the ELSA reaction wall facility on a four-storey full-scale reinforced concrete frame designed according to Eurocode 8, at the end of a series of pseudodynamic tests. The results allow the performance during the pseudodynamic tests to be assessed and the cyclic damageability of a complete structure to be investigated. The effects of low-cycle fatigue on a high-ductility structure turned out to be more important than expected.     

Socio-economic inequalities in health among older adults in two rural sub-districts in India and Bangladesh: a comparative cross-sectional study

Health inequalities have been observed among older people in many developing countries, particularly among those with least social protection and low socio-economic (SES) status. This study attempted to examine effects of SES on the health of older adults, and related gender differences, in two rural sub-districts - Matlab, Bangladesh and Vadu, India. The study utilised the WHO SAGE-INDEPTH Wave 1, 2007 Matlab, Bangladesh and Vadu, Pune District, India datasets. Both gender and SES indicators were strongly associated with all health indicators of older adults in the Bangladesh site, whereas in India, education and asset quintiles were not consistently associated with self-rated health, quality of life and functional ability score but gender was consistently associated with all health indicators except the quality of life score. The SES-health gradient was noticeably higher amongst older adults in Matlab, Bangladesh than in Vadu, India. Education was also found to be an important predictor of health outcome in both sites.