Morphological Impacts and Implications of a Trial Release on the Wingecarribee River,New South Wales

A trial, monitored release on the Wingecarribee River over 27 days had a peak discharge below the Wingecarribee Dam of 1090 ML/d, which had a flow duration of 0.95 per cent. Morphological impacts on 29 km of channel below the dam included bank erosion, concentrated neck overflow, bed degradation and channel widening at recent cutoffs, sedimentation in weir pools and overbank flow, particularly at discharges greater than 800 ML/d. Prolonged operational releases at bankfull discharge (400–800 ML/d) will have the greatest morphologic impacts and should be avoided. Pulses which dissipate stream power over a broad, well-vegetated floodplain should be incorporated in the operational release policy, provided such pulses are phased to facilitate channel and vegetation recovery.     

Does the Centre Hold? Testing Palma's Proposition (A Comment)

This Comment tests empirically the important proposition made by Palma in this journal (Development and Change, 2011) that deciles 5 to 9 of the income distribution across developing economies have been able to secure and defend a stable share (around 50 per cent) of the total available income, so that changes in income inequality are now a matter of struggle between the top 10 per cent and the bottom 40 per cent of the population, ranked by income. The author finds that the proposition does not hold: changes in top 10 per cent shares are matched by changes in the shares of both the other cohorts.     

River metamorphosis and environmental change in the Macdonald Valley,New South Wales,since 1949

A significant metamorphosis of channel form occurred on the lower Macdonald River between 1949 and 1955; width and width-depth ratio increased and depth, sinuosity and weighted mean per cent silt-clay in the channel perimeter decreased. The channel has remained unstable since 1955, exhibiting frequent variations in bed elevation and a recent period of minor channel contraction followed by slight enlargement. Since 1946 there has been an increase in summer and annual rainfall and an abrupt, upward shift of the annual series flood frequency curve. As a result an increased proportion of the total sediment load of the river is now being transported as bed-material load. The change in sediment load is a result of greater stream competence and the consequent reworking of sandy sediment temporarily stored within the channel as benches. The observed channel changes are a quasi-adjustment to the increased flood and bed-material load discharges.     

Air Services in Australia: Growth and Corporate Change, 1921–1996

The growth of Australian internal passenger airlines in the seventy-five years between 1921 and 1996 has been spectacular with 381 airlines having been part of this evolution. The end of 1996 saw 44 passenger airlines operating, but the nine that made up the two principal airline families performed 98 per cent of total passenger-kilometres. This paper considers the factors which have moulded the industry and the changes which have occurred in its corporate structure, especially those that led to the formation of the present duopoly. The growth of the industry has not resulted in marked spatial changes apart from a 48 per cent decline in the number of airports served since 1963–64. The proportion of total traffic passing through the busier airports has increased over the last thirty years.     

The Piketty phenomenon: why has Capital become a publishing sensation?

Why has Piketty's Capital become a publishing sensation? Not for revolutionary findings; its message that western societies have experienced increases in inequality of income and wealth over the long term is hardly new. Of the several reasons discussed in this article, attention is paid in particular to the book's timing and its claim to reveal the laws of income and wealth distribution in western societies. Had the book been published before 2008 it would have been much less successful. Piketty's revelation of the big trends and their underlying logic helps to objectify, legitimize and offer a kind of catharsis for surging middle‐class anxieties during the Great Recession. These anxieties have been further intensified by evidence that over 90 per cent of the increase in disposable income in the United States has accrued to the top 1 per cent of the population in the past several years, and a not much lower percentage to the top 1 per cent in Britain. In the conclusion it is argued that if Piketty's forecasts are even remotely accurate, capitalism will lose its core claim to legitimacy.     

Cyclical downturn or structural disease? The decline of the Italian economy in the last twenty years

Italy is experiencing at present the most serious economic recession of the post-war period. Between 2008 and 2013 national income fell by 9 per cent, per capita incomes by 11 per cent, and industrial production by 25 per cent; and unemployment doubled. In this essay we argue that, while this dramatic situation has been made worse by the policies of ‘expansive austerity’, its origins can be traced back to changes that took place in the 1990s (notably globalization, competition for emerging new markets and the diffusion of new technologies – ICT) to which Italy failed to react speedily or effectively by reorganizing its entire productive system. Instead, many of the reforms that have been introduced with respect to the labour market, for example, have reduced costs but in ways that have encouraged firms to stay in traditional sectors where products are poorly differentiated and of low technology content. If the Italian economy is not to become even weaker, new reforms are urgently needed to encourage innovative investment and push through to completion a restructuring of the industrial system that can no longer be deferred.     

Editorial opinion and the Whitlam government

Half of the editorials in nine Australian newspapers referred in some way to the national Labor government between December, 1972 and March, 1975. Those editorials were 21 per cent positive towards the government, 37 per cent balanced, and 42 per cent hostile towards the government. The negative 42 per cent kept editorials negative on balance for three‐quarters of the time. Only one poper, The Age, was on balance (mildly) favourable towards the government, the rest were hostile. In their month by month variations in opinion towards the government the papers tended to move up or down together, and they made two general movements downwards and two general movements upwards. Editorial opinion towards the government and public opinion towards the government moved up and down together, with changes in editorial opinion tending to foreshadow and hence possibly helping to shape changes in public opinion. Papers in the states did not resemble each other, and whether papers in the same ownership chains did so depended on the chain. Public opinion varied more with changes in the level of employment than did editorial opinion.⁸     

NITRATE-NITROGEN FLUX AND UTILIZATION IN A STREAM ECOSYSTEM DURING LOW SUMMER FLOWS

Analysis of nitrate transport in the downstream reaches of Duffin Creek, Ontario, revealed an average daily loss of 45 kg nitrate-N during low summer flows. The nitrate loss represents 50 per cent of the average daily input of total nitrogen and 75 per cent of the nitrate input received by these channel reaches. Nitrate uptake by benthic algae appears to account for a small portion of the NO₃^- removal. Laboratory experiments suggest that most of the nitrate disappearance from the river reaches is caused by bacterial denitrification and nitrate reduction in stream sediments.
L'analyse du transport de nitrate dans l'étendue en aval de Duffin Creek, Ontario, a révélé une perte journalière moyenne de 45 kg de nitrate-N durant l'écoulement affaibli des flots du ruisseau en été. Cette perte de nitrate représente 50 pourcent de la moyenne journalière du total d'azote fourni et 75 pourcent du nitrate reçu par l'étendue de ce canal. Les algues agrostides ne semblent être responsable que d'une faible partie de ladisparition du NO₃^-. Des experiences en laboratoire suggèrent que presque toute la disparition du nitrate dans la riviere est causée par la dénitrification bactérienne et la réduction d'azote dans les sédiments du cours d'eau.     

Child loss and maternal wages in China

Using data from a random sample of the 2005 National Population Survey of China, we investigate the association between child death and maternal hourly wages. Approximately 1.6 per cent of the population has experienced at least one child death. Such bereaved mothers’ hourly wages are 53 per cent lower than those of non-bereaved mothers. We find that child death carries a significant wage penalty. Son death has a larger impact than daughter death and its effect decreases as the number of children in the household increases. Our decomposition results show that number of children, maternal education and regional characteristics are the three most important contributors to the wage gap, yet unexplained differences remain large, especially at the lower end of the wage distribution.     

An elasticity analysis of the effectiveness of pronatalist measures in Taiwan

The total fertility rate (TFR) of Taiwan has remained below the replacement level 2.1 for past thirty years. Currently, 16 of its 22 counties and cities have TFRs below 1.3, with TFRs in middle and southern Taiwan even below 1. In the recent decade, various pronatalist policies have been adopted in Taiwan to cope with the low fertility issue. However, little is known about the effectiveness of these policies. In order to identify the group(s) of women that should be targeted to increase the TFR effectively, we have constructed a stochastic model to perform an elasticity analysis. The results show that changes in marriage rates among women aged 25–29 years would have the largest impact on the TFR, with an elasticity value of 0.32. This means that every 1 per cent increase in the marriage rate of women aged 25–29 may increase the TFR by about 0.32 per cent (i.e. an increase of about 2.6 children per 1000 women). The TFR is also very sensitive in responding to changes in the marriage rate and parity-1 fertility rate of 30–34-year-old women, with elasticities of 0.19 and 0.16 respectively. The divorce rate has a small but negative impact on the TFR. Also, the possible contribution of third- and higher-order births is insignificant. These findings suggest that policies aimed at increasing the marriage rate among women in their late twenties and early thirties, and supporting first births of women in their early thirties, are likely to raise Taiwan’s fertility rate effectively.     

THE DISTRIBUTION OF ENGLISH IN UPPER CANADA 1851–1871

Studies of British peoples in Upper Canada have emphasized the Irish and Scots rather than the English despite the fact that in 1871 439,429 people - 27 per cent of Ontario residents - claimed English ancestry (Clarke and McLeod 1974; Houston and Smyth 1980; Akenson 1984). Those of English nativity constituted 28 per cent of foreign-born in the same year (Census of Canada 1871). Two decades earlier, in 1851, the English-born numbered 82,699, and they had increased to 124,062 by 1871. The overall proportion of those of English birth remained quite uniform, at approximately 8 per cent throughout the twenty-year period.     

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.     

Assessment of Riparian Revegetation Trials on In-Channel Benches in the Hunter Valley of Southeast Australia

Large-scale river training works have been carried out in the Hunter valley since 1955 in response to flood-driven channel changes. Vegetation was planted on in-channel benches induced by river training works to consolidate the deposits and to increase channel boundary roughness. Exotic species of vegetation such as willows and poplars were previously used. In 1983, ten trial sites were planted with various species of native vegetation. Survival rates were evaluated in 1987 and 1997. The most successful species planted was Eucalyptus camaldulensis with an overall survival rate of 77 per cent in 1997. The Acacia species were found to be short-lived, exhibiting a significant decline in survival rates between 1987 and 1997. Survival rates for most species were higher on sand-bed than on gravel-bed sites. This difference may be attributed to better drainage on benches at the sand-bed sites. Investigations of flood disturbance showed that between 1983 and 1997 the sites were flooded between four and 13 times. The survival rates of Grevillea robusta and Eucalyptus melliodora trees were negatively correlated with the total number of recorded floods at each site. Poor natural regeneration of planted species is attributed to a combination of periodic flooding, intensive weed growth, low light intensities at ground level and grazing disturbance. These trials were not well designed for statistical analysis but provide valuable long-term information on the suitability of various species for planting in riparian rehabilitation programs. Such information is of relevance not only to river and catchment management authorities, but also to community groups.     

NITRATE-NITROGEN FLUX AND UTILIZATION IN A STREAM ECOSYSTEM DURING LOW SUMMER FLOWS

Analysis of nitrate transport in the downstream reaches of Duffin Creek, Ontario, revealed an average daily loss of 45 kg nitrate-N during low summer flows. The nitrate loss represents 50 per cent of the average daily input of total nitrogen and 75 per cent of the nitrate input received by these channel reaches. Nitrate uptake by benthic algae appears to account for a small portion of the NO₃^- removal. Laboratory experiments suggest that most of the nitrate disappearance from the river reaches is caused by bacterial denitrification and nitrate reduction in stream sediments. L'analyse du transport de nitrate dans l'étendue en aval de Duffin Creek, Ontario, a révélé une perte journalière moyenne de 45 kg de nitrate-N durant l'écoulement affaibli des flots du ruisseau en été. Cette perte de nitrate représente 50 pourcent de la moyenne journalière du total d'azote fourni et 75 pourcent du nitrate reçu par l'étendue de ce canal. Les algues agrostides ne semblent être responsable que d'une faible partie de ladisparition du NO₃^-. Des experiences en laboratoire suggèrent que presque toute la disparition du nitrate dans la riviere est causée par la dénitrification bactérienne et la réduction d'azote dans les sédiments du cours d'eau.     

High‐speed railway to success? The effects of high‐speed rail connection on regional economic development in China

We find that high‐speed railway connection in China has led to a reduction in GDP per capita for connected peripheral prefectures. We use the least‐cost path‐spanning tree network to address the nonrandom route placement issue. We find that the reduction of GDP per capita is driven by significant contractions in capital input, industrial output, and skilled labor outflow. We present evidence to support a trade‐based channel in light of falling transportation costs between peripheral and metropolitan regions. Our finding highlights the importance of the cost of human transport.     

Application of Health Expectancy Research on Working Male Population in Bangladesh

Lower quality of life and more work-loss days for the workforce are barriers for economic development in Bangladesh. Using nationally representative data—the Bangladesh Demographic and Health Surveys for the 2004–2007 period, we examined the prevalence of diseases (asthma, diabetes, heart problems, high blood pressure, jaundice/hepatitis, malaria/fever, tuberculosis, and other) that prevented ever-married male workers from doing their regular activities in Bangladesh, and we examined changes in partial work-loss free life expectancy (WLFLE). The study found improvements in the mean number of work-loss days as well as in WLFLE; male workers at age 30 in 2007 expected 212 days more WLFLE than male workers of the same age in 2004. Other diseases prevented 17.8 per cent of male workers in 2004 and 9.1 per cent of male workers in 2007 from doing their normal work. Malaria/fever prevented 14.4 per cent and 11.5 per cent of male workers in 2004 and 2007, respectively, from doing their normal work. In both years, of all the diseases, the other diseases category and malaria/fever were found to be the major causes preventing Bangladeshi male workers from doing their normal work. This study recommends taking action against malaria/fever so that people can continue working without health problems or illness, and it recommends identifying other diseases which cause work-loss days. It suggests collecting data for both the males and females in a consistent manner by keeping the same questions with the same wording, order, and age groups consistent over time.     

Analysis of faunal remains from the Kretuonas lake settlement

The Middle (Kretuonas 1B), Late Neolithic (Zemaitiške 1 and Zemaitiške 2) and Old Bronze Age (Kretuonas 1C) settlements near Kretuonas Lake (Svencioneliai district, Reskutenai village) yielded many artefacts of bone, antler, horn and teeth (750 in total). In the Kretuonas 1B assemblage, deer bones accounted for 50.5 per cent, elk bones 19.7 per cent and boar bones for 27.7 per cent of the total. In the Zemaitiške 1 and 2 settlements the respective portions were 27.7 and 62.0 per cent deer, 6.8 and 20.0 per cent elk and 10.1 per cent boar. In Kretuonas 1C the proportions were 10.9, 36.0 and 7.5 per cent respectively. In the Kretuonas 1B settlement 32 artefacts were identified, 16 from deer bone, four from elk and four from boar. In the Zemaitiške 2 settlement there were 114 artefacts of which 57 were identified to species. Of these, 39 were from deer, eight from elk and four from boar. Finally, in the Kretuonas 1C settlement, of the 531 artefacts found, 120 were identified to species and of these 49 were from deer, 44 from elk, nine from boar and nine from bear.     

Salt tectonics and shallow subseafloor fluid convection: models of coupled fluid‐heat‐salt transport

Thermohaline convection associated with salt domes has the potential to drive significant fluid flow and mass and heat transport in continental margins, but previous studies of fluid flow associated with salt structures have focused on continental settings or deep flow systems of importance to petroleum exploration. Motivated by recent geophysical and geochemical observations that suggest a convective pattern to near‐seafloor pore fluid flow in the northern Gulf of Mexico (GoMex), we devise numerical models that fully couple thermal and chemical processes to quantify the effects of salt geometry and seafloor relief on fluid flow beneath the seafloor. Steady‐state models that ignore halite dissolution demonstrate that seafloor relief plays an important role in the evolution of shallow geothermal convection cells and that salt at depth can contribute a thermal component to this convection. The inclusion of faults causes significant, but highly localized, increases in flow rates at seafloor discharge zones. Transient models that include halite dissolution show the evolution of flow during brine formation from early salt‐driven convection to later geothermal convection, characteristics of which are controlled by the interplay of seafloor relief and salt geometry. Predicted flow rates are on the order of a few millimeters per year or less for homogeneous sediments with a permeability of 10^?15 m², comparable to compaction‐driven flow rates. Sediment permeabilities likely fall below 10^?15 m² at depth in the GoMex basin, but such thermohaline convection can drive pervasive mass transport across the seafloor, affecting sediment diagenesis in shallow sediments. In more permeable settings, such flow could affect methane hydrate stability, seafloor chemosynthetic communities, and the longevity of fluid seeps.     

农村居民闲暇生活特征研究——以湖南省为例

2001年4月至8月抽取湖南省浏阳市、华容县、新宁县、凤凰县和资兴市等五个代表样地的农村居民共1300人(户),对农村居民的闲暇生活和旅游活动进行了详细调查。结果表明,湖南省农村居民闲暇在时间和空间分布上存在一定的规律,闲暇生活也表现出较为显著的特征,总体上休闲方式多样,但闲暇质量不高而且单一,并受经济和区位的影响。旅游活动已渐入农村,并将成为农村居民闲暇的重要组成。     

How Road Traffic Injuries Affect Household Welfare in Cambodia Using the Millennium Development Goals Benchmarks

This paper reveals the welfare costs of traffic injuries in Cambodia at the beginning of a decade in which greater research and resources will be focused on road safety. The results quantify how road traffic injuries affect progress towards the Millennium Development Goals (MDGs) using survey data from 100 Cambodian households. The median age of the police-reported casualties was 28 years and 68 per cent were male. In terms of poverty (MDG1), injuries resulted in a 21 per cent loss of income for the 542 household residents. The poorest households, and those with a seriously injured resident, were worst affected. Primary education (MDG2) drop-out rates were eight times the province average. The gender (MDG3) income gap widened by 28 per cent, whilewomen bore 88 per cent of the burden of care for the injured. In terms of child health and mortality (MDG4), 31 per cent of respondents reported adeterioration in child health, while 24 per cent of respondents reported a deterioration in maternal health (MDG5). The households reported rates of priority diseases (MDG6) at twice the national average. Environment (MDG7) outcomes included increased wood fuel use and stagnation in improving drinking water access, with no apparent development partnership (MDG8) to address the negative welfare impacts of road traffic injury.