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Longer Term (longer + term)
Selected AbstractsSeasonal variability in velocity and ablation of Te Moeka o Tuawe/Fox Glacier, south Westland, New ZealandNEW ZEALAND GEOGRAPHER, Issue 1 2008Heather L. Purdie Abstract:, Seasonal variations in ablation and surface velocity were investigated on the lower Fox Glacier. Variations occur between summer and winter ablation, with surface velocity also showing marked seasonality. Recent advance has resulted in the glacier gaining around 200 m length since late 2004. Longer term, Fox Glacier appears linked to the Southern Oscillation Index, with positive glacier mass balances associated with negative Southern Oscillation Index (El Niño). An estimated glacier response time of approximately 9,14 years suggests the current terminus advance was linked to mass gains in the mid-1990s. Recent collapses at the terminal face continue to prove a hazard at this busy tourist destination. [source] Association between eating frequency, weight, and healthNUTRITION REVIEWS, Issue 7 2009Michelle A Palmer There is speculation amongst health professionals, the media, and the public regarding eating frequency (EF) and its impact on weight and health. Nutritional weight-loss and -maintenance interventions of longer than 1 week's duration were reviewed for associations between EF and weight and health. Of the 176 studies identified, 25 relevant studies matched the criteria and only 10 of these were weight-loss interventions. Generally, sample sizes were small, interventions were short-term, and a wide array of definitions was used to define an eating occasion. Several key outcomes such as physical activity, adherence to assigned EF, and hunger were often not measured. The limited evidence available suggests there is no association between EF and weight or health in either weight-loss or -maintenance interventions, with a possible inverse association between EF and lipids in weight-maintenance interventions. Longer term, larger studies that include important weight and health outcomes are needed. [source] ADDICTIVE DRUG USE MANAGEMENT POLICIES IN A LONG-RUN ECONOMIC MODEL,AUSTRALIAN ECONOMIC PAPERS, Issue 2 2009HARRY CLARKE A model of illicit, addictive drug use is proposed when users have foresight. Impacts of drug use penalties, penalties on drug use-related crime, support for drug user rehabilitation as well as the effects of health-related, harm-minimisation policies are analysed. In the short run, government policies impact only on the drug use intensities of existing addicted and casual users. Longer term policy-induced user-cost changes impact on new user and addict numbers through their effect on recruitment into addiction and quit dynamics. Effects of policies on user numbers, usage intensities and impacts on long-run social costs are analysed over this long-term horizon. The model provides a setting for analysing the long-run effects of illicit drug management policies on the social costs of illicit drug use and allows assessment of drug use abstinence and harm minimisation policy tradeoffs. [source] A randomised trial of a retropubic tension-free vaginal tape versus a mini-sling for stress incontinenceBJOG : AN INTERNATIONAL JOURNAL OF OBSTETRICS & GYNAECOLOGY, Issue 6 2010M Basu Please cite this paper as: Basu M, Duckett J. A randomised trial of a retropubic tension-free vaginal tape versus a mini-sling for stress incontinence. BJOG 2010; DOI: 10.1111/j.1471-0528.2010.02513.x. Objective, To compare a mini-sling with a retropubic tension-free vaginal tape (TVT) in the treatment of stress urinary incontinence (SUI) and urodynamic stress incontinence (USI). Design, Randomised trial. Setting, Urogynaecology unit in large UK district general hospital. Population, Women with USI resistant to conservative management and requiring a suburethral sling. Methods, A total of 71 women with SUI and confirmed USI were randomised to undergo treatment with either a retropubic TVT or mini-sling. Follow-up was at 6 weeks, with a history, examination and quality of life questionnaire, and at 6 months with further subjective evaluation and twin-channel subtraction cystometry and pressure-flow studies. Main outcome measures, The presence of SUI at 6 weeks and 6 months after treatment. Results, The mini-sling was associated with a significantly higher rate of persistent SUI at 6 weeks (OR 9.49, 95% CI 2.8,32.6) and 6 months (OR 8.14, 95% CI 2.7,24.7), and of USI at 6 months (OR 7.58, 95% CI 2.7,24.7). The rate of complication was similar in the two groups. Conclusions, The mini-sling is associated with a higher failure rate than a retropubic TVT. Longer term and multicentre outcome data are necessary to explore these findings further. Until this is available, the mini-sling should be used with caution. [source] Improving children's behaviour and attendance through the use of parenting programmes: an examination of practice in five case study local authoritiesBRITISH JOURNAL OF SPECIAL EDUCATION, Issue 3 2006Susan Hallam In this article, Professor Susan Hallam, of the Institute of Education, University of London, Lynne Rogers, lecturer in psychology at the Open University, and Jacqueline Shaw, music teacher, researcher and educational psychologist in training, report the key outcomes of their recent research into parenting programmes. The survey suggested that most local authorities in England were at a relatively early stage in their preparations for meeting demand for programmes focused on developing parenting skills in order to improve the attendance and behaviour of children in school. Here the authors present case studies of five local authorities that had well-developed provision based on contrasting approaches. Two of these authorities used existing programmes available through alternative providers or early years provision; the others offered programmes in schools, one based on established and internationally-available material and two that used content developed within the local authority. Longer term needs relating to parenting programmes are considered in relation to these case studies and the implications for schools, that may be actively encouraged to take on responsibility for these programmes, are explored. [source] Gender effects on cardiac valvular function in hyperprolactinaemic patients receiving cabergoline: a retrospective studyCLINICAL ENDOCRINOLOGY, Issue 1 2010Lisa B. Nachtigall Summary Background, Ergot-derived dopamine agonists are associated with increased risk of valvular dysfunction in Parkinson's disease. The risk of valvular disease associated with lower doses of cabergoline used to treat prolactinomas remains controversial. Objective, To determine whether there is an association of cabergoline and valvular function in patients with hyperprolactinaemia according to gender. Design, Case-record retrospective study. Setting, Outpatient neuroendocrine clinical centre at a tertiary care hospital. Study participants, One hundred patients (48 men and 52 women) with hyperprolactinaemia who had an echocardiogram while receiving cabergoline for at least 6 months. Controls, One hundred controls (48 men and 52 women) selected from Massachusetts general hospital (MGH) database of echocardiograms without clinically significant findings, matched to patients for age, gender, body mass index (BMI) and hypertension. Main outcome measure, Echocardiogram. Results, There were no significant differences in valvular function in patients compared with controls. However, women patients had a higher prevalence of mild tricuspid regurgitation (TR) than female controls (15·4%vs. 1·9%, P = 0.03). Among men only, patients had more trace TR than controls (68·8%vs. 45·8%, P = 0.02). The mild valvular regurgitation in patients was not clinically significant and did not correlate with dose, duration or cumulative dose. Conclusions, Overall cabergoline was not associated with valvulopathy. However, subdivided by gender, hyperprolactinaemic men and women had higher prevalence of trace or mild TR, respectively, compared with gender matched controls. There may be gender differences in valvular dysfunction associated with cabergoline. Longer term, larger studies are necessary to evaluate definitively an effect of cabergoline on valvular function in hyperprolactinaemic patients. [source] BENEFITS AND COSTS OF INTENSIVE FOSTER CARE SERVICES: THE CASEY FAMILY PROGRAMS COMPARED TO STATE SERVICESCONTEMPORARY ECONOMIC POLICY, Issue 3 2009RICHARD O. ZERBE The foster care system attempts to prepare children and youth who have suffered child maltreatment for successful adult lives. This study documents the economic advantages of a privately funded foster care program that provided longer term, more intensive, and more expensive services compared to public programs. The study found significant differences in major adult educational, health, and social outcomes between children placed in the private program and those placed in public programs operated by Oregon and Washington. For the outcomes for which we could find financial data, the estimated present value of the enhanced foster care services exceeded their extra costs. Generalizing to the roughly 100,000 adolescents age 12-17 entering foster care each year, if all of them were to receive the private model of services, the savings for a single cohort of these children could be about $6.3 billion in 2007 dollars. (JEL D61, H75) [source] In-hospital breast feeding rates among women with gestational diabetes and pregestational Type 2 diabetes in South AucklandDIABETIC MEDICINE, Issue 2 2005D. Simmons Abstract Aim To describe the uptake of breast feeding in mothers with either Type 2 diabetes or gestational diabetes (GDM) in a hospital serving a multiethnic community in South Auckland, New Zealand. Research design and methods A retrospective study of all women attending the Diabetes in Pregnancy clinic over a 4-year period was undertaken: 30 women had Type 2 diabetes and 373 GDM. Results Compared with mothers with GDM, mothers with Type 2 diabetes were less likely to breast feed in any way as the first feed (41.4% vs. 68.0%, P = 0.011) or at discharge (69.0% vs. 84.0%, P = 0.039). In the combined group, there were no differences in uptake of breast feeding by ethnicity, age, parity, body mass index, smoking or antenatal glycaemia, use of insulin or presence of hypertension. Breast feeding on discharge was associated with a higher APGAR score, breast feeding as the first feed (78.2% vs. 19.4%, P < 0.001) and lower rates of delivery by Caesarean section (17.0% vs. 31.8%, P = 0.006). Logistic regression showed breast feeding as the first feed, the major determinant for breast feeding on discharge. Conclusions Factors delaying breast feeding as the first feed are the major determinant of breast feeding on discharge. Strategies to increase breast feeding as the first feed among women with Type 2 diabetes, and those having a Caesarean section, may be useful in increasing the uptake of breast feeding in the longer term. [source] Food Security in Protracted Crises: Building More Effective Policy FrameworksDISASTERS, Issue 2005Margarita Flores This paper considers the principal elements that underpin policy frameworks for supporting food security in protracted crisis contexts. It argues that maintaining the food entitlements of crisis-affected populations must extend beyond interventions to ensure immediate human survival. A ,policy gap' exists in that capacities for formulating policy responses to tackle the different dimensions of food insecurity in complex, fluid crisis situations tend to be weak. As a result, standardised, short-term intervention designs are created that fall short of meeting the priority needs of affected populations in the short and long term and only partially exploit the range of policy options available. The paper discusses key attributes of agency frameworks that could support more effective policy processes to address longer term as well as immediate food security needs. Additionally, it points to some main challenges likely to be encountered in developing such frameworks and, with the participation of beneficiaries, translating them into effective action. [source] Geological controls on the formation of alluvial meanders and floodplain wetlands: the example of the Klip River, eastern Free State, South AfricaEARTH SURFACE PROCESSES AND LANDFORMS, Issue 8 2002S. Tooth Abstract Floodplain wetlands are common features of rivers in southern Africa, but they have been little studied from a geological or geomorphological perspective. Study of the upper Klip River, eastern Free State, South Africa, indicates strong geological controls on the formation of alluvial meanders and associated floodplain wetlands. Along this river, pronounced and abrupt changes in valley width are strongly linked to lithological variations. Where weakly cemented sandstone crops out, the Klip has laterally eroded bedrock and carved valleys up to 1500 m wide. In these valleys, the river meanders (sinuosity up to ,1·75) on moderate gradients (<0·001) within extensive floodplains marked by numerous oxbow lakes, backswamps and abandoned channels, many of which host substantial wetlands. In contrast, where highly resistant dolerite crops out, lateral erosion of bedrock is restricted, with the Klip tending instead to erode vertically along joints or fractures. Here, valleys are narrower (<200 m), channel-bed gradients are steeper (>0·003), the river follows a much straighter course (sinuosity ,1·10,1·34), and floodplains are restricted in width. Long-term landscape development in the Klip and numerous similar catchments depends on the interaction between fluvial processes in the sandstone and dolerite valleys. In the sandstone valleys, vertical erosion rates are controlled by erosion rates of the more resistant dolerites downstream. Hence, in the short- to medium-term (decades to tens of thousands of years), lateral erosion dominates over vertical erosion, with the river concomitantly planing sandstone in the channel floor and reworking floodplain sediments. The thickness of alluvial fill in the sandstone valleys is limited (<4 m), but the resultant meanders are naturally dynamic, with processes such as point bar deposition, cutoff formation and channel avulsion resulting in an assemblage of fluvial landforms. In the longer term (greater than tens of thousands of years), however, vertical erosion will occur in the sandstone valleys as the downstream dolerites are lowered by erosion, resulting in channel incision, floodplain abandonment, and desiccation of the wetlands. Identification of the geological controls on meander and wetland formation provides information vital for the design of effective management guidelines for these ecologically rich habitats, and also contributes to a better understanding of rivers that are intermediate between fully alluvial and fully bedrock. Copyright © 2002 John Wiley & Sons, Ltd. [source] Modelling rising groundwater and the impacts of salinization on terrestrial remnant vegetation in the Blackwood River BasinECOLOGICAL MANAGEMENT & RESTORATION, Issue 1 2004Geoff Hodgson Summary Southwest Western Australia has a particularly rich biodiversity. Clearing for agriculture has greatly reduced the extent of native vegetation in wheatbelt catchments; it also set into train hydrogeological and hydrological changes that are still evolving toward a new equilibrium. With those changes come widespread land salinization that presents a further risk to remnant vegetation, particularly in low portions of the landscape. The equilibrium position of shallow groundwater was modelled for the Blackwood Catchment, and used to assess the extent of risk to a set of remnant vegetation classes. A total of 37 368 ha of remnant vegetation was identified to be at risk of salinization when hydrological equilibrium is reached. Further hydrological modelling assessed the rate of development of these watertables (and hence the rate of impact on remnants), as well as the potential to protect remnants by controlling groundwater recharge with revegetation. The results demonstrate that only high levels of revegetation are effective at protecting high value remnants in the longer term. The timing of events is dependant on the accuracy of estimating recharge. [source] Extended cognitive behavior therapy for cigarette smoking cessationADDICTION, Issue 8 2008Joel D. Killen ABSTRACT Primary aim Examine the effectiveness of extended cognitive behavior therapy (CBT) in promoting longer-term smoking abstinence. Design Open-label treatment phase followed by extended treatment phase. Randomization conducted prior to entry into open-label treatment phase; analysis based on intention-to-treat to avoid threat of selection bias. Setting Community smoking cessation clinic. Participants A total of 304 adult smokers (,18 years of age; ,10 cigarettes/day). Intervention Open-label (8 weeks): all participants received bupropion SR, nicotine patch, CBT. Extended treatment (12 weeks): participants received either CBT + voicemail monitoring and telephone counseling or telephone-based general support. Measurements Seven-day point prevalence abstinence, expired-air carbon monoxide. Results At week 20 follow-up, CBT produced a higher 7-day point prevalence abstinence rate: 45% versus 29%, P = 0.006; at 52 weeks the difference in abstinence rates (31% versus 27%) was not significant. History of depression was a moderator of treatment. Those with a positive history had a better treatment response at 20 weeks when assigned to the less intensive telephone support therapy (P < 0.05). Conclusion The superiority of CBT to 20 weeks suggests that continued emphasis on the development of cognitive and behavioral strategies for maintaining non-smoking during an extended treatment phase may help smokers to maintain abstinence in the longer term. At present, the minimum duration of therapy is unknown. [source] Wind power and ,the planning problem': the experience of WalesENVIRONMENTAL POLICY AND GOVERNANCE, Issue 5 2007Richard Cowell Abstract Across Europe, spatial planning has acquired an important role in steering wind power to more socially acceptable locations. However, the tendency for planning decisions to become a focus of opposition has also led to planning being represented as ,a problem' in meeting renewable energy targets. Using Jessop's dialectical relationship between modes and objects of governance, this paper seeks to understand why certain states are inclined to resolve ,the planning problem' for wind through strengthened national control. The case study is the Welsh Assembly Government's 2005 planning guidance on renewable energy, which superimposes centrally-determined ,Strategic Search Areas' for large-scale, onshore wind farm development onto local decision-making processes. Motivations for adopting this approach reflect the UK's centralizing planning culture, and beliefs that local planning processes will not yield sufficient sites to meet targets for wind power expansion. Responses to this planning guidance suggest that it may stabilizing the regulatory conditions for large-scale wind investment in the short term, in some parts of Wales, but faces a number of points of vulnerability in the longer term. Copyright © 2007 John Wiley & Sons, Ltd and ERP Environment. [source] Dose-related effects following oral exposure of 2,4-dinitrotoluene on the western fence lizard, Sceloporus occidentalisENVIRONMENTAL TOXICOLOGY & CHEMISTRY, Issue 2 2008Jamie G. Suski Abstract 2,4-dintitrotoluene (2,4-DNT) is an explosive frequently found in the soil of military installations. Because reptiles can be common on these sites, ecological risk assessments for compounds such as 2,4-DNT could be improved with toxicity data specific to reptiles. Western fence lizards, Sceloporus occidentalis, were used to develop a laboratory toxicity model for reptiles. A hierarchical approach was used; acute to subchronic studies were conducted to provide toxicity data relevant to short- and long-term exposures. First, a modified median lethal dose (LD50) study was conducted on male and female lizards using a stage-wise probit model. The LD50 was 577 mg/kg for female and 380 mg/kg for male lizards. Subsequently, a subacute experiment was conducted to further assess 2,4-DNT toxicity to male lizards and to define exposure levels for a longer term, subchronic study. The subchronic study was conducted for 60 consecutive days; male lizards were exposed to 0, 9, 15, 25, 42, 70 mg/kg/d. Dose-dependent mortality was observed in the three highest dose groups (25, 42, and 70 mg/kg/d); all other animals survived the study duration. Benchmark dose model calculations based on mortality indicated a 5% effect level of 15.8 mg/kg/d. At study termination, a gross necropsy was performed, organ weights were taken, and blood was collected for clinical and hematological analysis. Body weight, kidney weight, food consumption, postdose observations, and blood chemistries all were found to be significantly different from controls at doses above 9 mg/kg/d. Also, preliminary results suggest behavioral observations, and reduced food consumption may be a sensitive indicator of toxicity. The present study indicates Sceloporus occidentalis is suitable for evaluating toxicity of compounds to reptilian species. [source] Impact of severe epilepsy on development: Recovery potential after successful early epilepsy surgeryEPILEPSIA, Issue 7 2010Eliane Roulet-Perez Summary Purpose:, Epilepsy surgery in young children with focal lesions offers a unique opportunity to study the impact of severe seizures on cognitive development during a period of maximal brain plasticity, if immediate control can be obtained. We studied 11 children with early refractory epilepsy (median onset, 7.5 months) due to focal lesion who were rendered seizure-free after surgery performed before the age of 6 years. Methods:, The children were followed prospectively for a median of 5 years with serial neuropsychological assessments correlated with electroencephalography (EEG) and surgery-related variables. Results:, Short-term follow-up revealed rapid cognitive gains corresponding to cessation of intense and propagated epileptic activity [two with early catastrophic epilepsy; two with regression and continuous spike-waves during sleep (CSWS) or frontal seizures]; unchanged or slowed velocity of progress in six children (five with complex partial seizures and frontal or temporal cortical malformations). Longer-term follow-up showed stabilization of cognitive levels in the impaired range in most children and slow progress up to borderline level in two with initial gains. Discussion:, Cessation of epileptic activity after early surgery can be followed by substantial cognitive gains, but not in all children. In the short term, lack of catch-up may be explained by loss of retained function in the removed epileptogenic area; in the longer term, by decreased intellectual potential of genetic origin, irreversible epileptic damage to neural networks supporting cognitive functions, or reorganization plasticity after early focal lesions. Cognitive recovery has to be considered as a "bonus," which can be predicted in some specific circumstances. [source] Did the National Minimum Wage Affect UK Prices?,FISCAL STUDIES, Issue 1 2010Jonathan Wadsworth J0; J3; D4 Abstract One potential channel through which the effects of the minimum wage could be directed is that firms that employ minimum-wage workers could have passed on any higher labour costs resulting from the minimum wage in the form of higher prices. This study looks at the effects of the minimum wage on the prices of UK goods and services by comparing prices of goods and services produced by industries in which UK minimum-wage workers make up a substantial share of total costs with prices of goods and services that make less use of minimum-wage labour. Using sectoral-level price data matched to Labour Force Survey data on the share of minimum-wage workers in each sector, it is hard to find much evidence of significant price changes in the months that correspond immediately to the uprating of the national minimum wage. However, over the longer term, prices in several minimum-wage sectors , notably, take-away food, canteen meals, hotel services and domestic services , do appear to have risen significantly faster than prices in non-minimum-wage sectors. These effects were particularly significant in the four years immediately after the introduction of the minimum wage. [source] Policy analysis for tropical marine reserves: challenges and directionsFISH AND FISHERIES, Issue 1 2003Murray A Rudd Abstract Marine reserves are considered to be a central tool for marine ecosystem-based management in tropical inshore fisheries. The arguments supporting marine reserves are often based on both the nonmarket values of ecological amenities marine reserves provide and the pragmatic cost-saving advantages relating to reserve monitoring and enforcement. Marine reserves are, however, only one of a suite of possible policy options that might be used to achieve conservation and fisheries management objectives, and have rarely been the focus of rigorous policy analyses that consider a full range of economic costs and benefits, including the transaction costs of management. If credible analyses are not undertaken, there is a danger that current enthusiasm for marine reserves may wane as economic performance fails to meet presumed potential. Fully accounting for the value of ecological services flowing from marine reserves requires consideration of increased size and abundance of focal species within reserve boundaries, emigration of target species from reserves to adjacent fishing grounds, changes in ecological resilience, and behavioural responses of fishers to spatially explicit closures. Expanding policy assessments beyond standard cost,benefit analysis (CBA) also requires considering the impact of social capital on the costs of managing fisheries. In the short term, the amount of social capital that communities possess and the capacity of the state to support the rights of individuals and communities will affect the relative efficiency of marine reserves. Reserves may be the most efficient policy option when both community and state capacity is high, but may not be when one and/or the other is weak. In the longer term, the level of social capital that a society possesses and the level of uncertainty in ecological and social systems will also impact the appropriate level of devolution or decentralization of fisheries governance. Determining the proper balance of the state and the community in tropical fisheries governance will require broad comparative studies of marine reserves and alternative policy tools. [source] Ferox Trout (Salmo trutta) as `Russian dolls': complementary gut content and stable isotope analyses of the Loch Ness foodwebFRESHWATER BIOLOGY, Issue 7 2002J. GREY 1.,Conventional collection methods for pelagic fish species (netting, trawling) are impractical or prohibited in Loch Ness, U.K. To investigate trophic relationships at the top of the Loch Ness food web, an alternative strategy, angling, provided samples of the top predator, the purely piscivorous ferox trout (Salmo trutta). 2.,The gut contents of these fish provided further samples of prey-fish, and subsequent examination of prey-fish guts revealed their dietary intake, analogous to the famous nested `Russian dolls'. Each trophic level separated by gut content analysis provided further complementary samples for stable isotope analysis and thus information on the longer term, assimilated diet. 3.,Ferox trout exhibited considerable cannibalism to supplement a diet of Arctic charr (Salvelinus alpinus). However, conspecifics stemmed from a lower isotopic baseline in relation to charr, so ferox trout exhibited a lower trophic level than predicted (4.3) by using the ,15N values. Charr displayed dietary specialisation with increasing length, and isotopic values supported by the gut data placed the charr at a trophic level of 3.5. The isotope data also indicated that charr carbon was primarily autochthonous in origin. [source] The Elephant in the Corner?GEOGRAPHY COMPASS (ELECTRONIC), Issue 2 2010Reviewing India-Africa Relations in the New Millennium As countries of the ,global South' seek to challenge existing uneven architectures of economic, political and institutional power, now under different circumstances to those prevailing during the Cold War, relations between African countries and various ,Rising Powers' have drawn a great deal of academic and public attention. This scrutiny has been heavily tilted towards analysis of China's African activities. This paper aims to partially redress this balance with an introductory review of India's contemporary relations with sub-Saharan Africa. A number of analysts suggest that in the longer term, India may well achieve a more prosperous and stable economy than China, while in the shorter term, its economic and political profile may result in a more productive relationship for many different African countries, sectors and constituencies. But India will also bring its own challenges in its African commercial interactions, bilateral relations and through its part in shaping the multilateral polity and global economy. This paper therefore aims to critically review contemporary India-Africa relations on four broad thematic points. 1Changing geographies of Indo-African relations; 2Trade and foreign direct investment; 3Development cooperation; and 4Geopolitics and diplomacy. India's confidence as a global political and economic actor is apparent in its African diplomacy and economic engagements, but claims to exceptionalism (relative both to Chinese and Western actors) in such relations are not as self-evident as some have asserted. Whether recent shifts in relations between African nations and India will work in the interests of less privileged citizens, workers and consumers in Africa and in India also remain unclear. [source] Combined effects of elevated temperatures and reduced leaf litter quality on the life-history parameters of a saprophagous macroarthropodGLOBAL CHANGE BIOLOGY, Issue 1 2009JEAN-FRANCOIS DAVID Abstract Because soil macroinvertebrates strongly modify decomposition processes, it is important to know how their abundance will respond to global change. We investigated in laboratory microcosms, the effects of elevated temperatures and reduced leaf litter quality on the life-history traits of a saprophagous macroarthropod (development time, growth, survival and reproduction). Millipedes (Polydesmus angustus) from an Atlantic temperate forest were reared throughout their life cycle (,16 months) under two temperature regimes differing on average by 3.3 °C; in a factorial design, they were fed either on Atlantic leaf litter or on Mediterranean leaf litter with a higher C : N ratio; humidity was consistently high. The components of the population growth rate (r) were affected positively by the temperature rise and negatively by the switch from Atlantic to Mediterranean leaf litter. When both treatments were combined, litter effects offset temperature effects. These results show that the short-term response of saprophagous macroarthropods to warming is positive but depends on the availability of high-quality litter, which is difficult to predict in the global change context. In a parallel experiment, conspecific millipedes from a Mediterranean population, which have evolved for a long time in a warmer climate and on poor-quality litter, were reared at elevated temperatures on Mediterranean leaf litter. All components of r were higher than in the Atlantic population under the same conditions. This suggests that in the longer term, macroarthropods can overcome detrimental trophic interactions. Based on our study and the literature, we conclude that for decades the positive effects of warming on saprophagous macrofauna should exceed the negative effects of changes in litter quality. The abundance of those organisms in temperate forests could increase, which is confirmed by latitudinal patterns in Europe. Studies aimed at predicting the impacts of global change on decomposition will need to consider interactions with soil macroinvertebrates. [source] Impacts of extreme winter warming in the sub-Arctic: growing season responses of dwarf shrub heathlandGLOBAL CHANGE BIOLOGY, Issue 11 2008S. BOKHORST Abstract Climate change scenarios predict an increased frequency of extreme climatic events. In Arctic regions, one of the most profound of these are extreme and sudden winter warming events in which temperatures increase rapidly to above freezing, often causing snow melt across whole landscapes and exposure of ecosystems to warm temperatures. Following warming, vegetation and soils no longer insulated below snow are then exposed to rapidly returning extreme cold. Using a new experimental facility established in sub-Arctic dwarf shrub heathland in northern Sweden, we simulated an extreme winter warming event in the field and report findings on growth, phenology and reproduction during the subsequent growing season. A 1-week long extreme winter warming event was simulated in early March using infrared heating lamps run with or without soil warming cables. Both single short events delayed bud development of Vaccinium myrtillus by up to 3 weeks in the following spring (June) and reduced flower production by more than 80%: this also led to a near-complete elimination of berry production in mid-summer. Empetrum hermaphroditum also showed delayed bud development. In contrast, Vaccinium vitis-idaea showed no delay in bud development, but instead appeared to produce a greater number of actively growing vegetative buds within plots warmed by heating lamps only. Again, there was evidence of reduced flowering and berry production in this species. While bud break was delayed, growing season measurements of growth and photosynthesis did not reveal a differential response in the warmed plants for any of the species. These results demonstrate that a single, short, extreme winter warming event can have considerable impact on bud production, phenology and reproductive effort of dominant plant species within sub-Arctic dwarf shrub heathland. Furthermore, large interspecific differences in sensitivity are seen. These findings are of considerable concern, because they suggest that repeated events may potentially impact on the biodiversity and productivity of these systems should these extreme events increase in frequency as a result of global change. Although climate change may lengthen the growing season by earlier spring snow melt, there is a profound danger for these high-latitude ecosystems if extreme, short-lived warming in winter exposes plants to initial warm temperatures, but then extreme cold for the rest of the winter. Work is ongoing to determine the longer term and wider impacts of these events. [source] Good Enough Governance: Poverty Reduction and Reform in Developing CountriesGOVERNANCE, Issue 4 2004Merilee S. Grindle The good governance agenda is unrealistically long and growing longer over time. Among the multitude of governance reforms that "must be done" to encourage development and reduce poverty, there is little guidance about what's essential and what's not, what should come first and what should follow, what can be achieved in the short term and what can only be achieved over the longer term, what is feasible and what is not. If more attention is given to sorting out these questions, "good enough governance" may become a more realistic goal for many countries faced with the goal of reducing poverty. Working toward good enough governance means accepting a more nuanced understanding of the evolution of institutions and government capabilities; being explicit about trade-offs and priorities in a world in which all good things cannot be pursued at once; learning about what's working rather than focusing solely on governance gaps; taking the role of government in poverty alleviation seriously; and grounding action in the contextual realities of each country. [source] Party-System Reform in Democracy's Grey Zone: A Response to MoraskiGOVERNMENT AND OPPOSITION, Issue 2 2009Kenneth Wilson This article analyses the party-system reforms introduced in Russia during Vladimir Putin's presidency. It contests Byron Moraski's interpretation, published in an earlier edition of this journal, which claims that the reforms introduced in Putin's second term were a response to the 2003 Duma election and were intended to preserve the unity and discipline of United Russia, the regime's ,party of power'. This article argues that Moraski's explanation of the second-term reforms is flawed and contends that the first- and second-term reforms were part of a wider reform programme designed to centralize Russia's political system, consolidate its party system and contribute to the construction of a façade democracy. The article also challenges Moraski's argument that these reforms, while introduced to advance the regime's interests, could further democratization in the longer term by adding the crucial caveat that stronger opposition parties that could act as a democratizing influence will only emerge if practices of electoral manipulation lessen or fail. [source] Developing and evaluating an interactive information skills tutorial,HEALTH INFORMATION & LIBRARIES JOURNAL, Issue 2 2006Maria J. Grant Objective:, To develop and evaluate a web-based interactive information skills tutorial integrated into the curriculum. To determine whether the tutorial was acceptable to students and explore the use of a skills assessment tool in identifying whether the tutorial improved skills. Methods:, The development of a tutorial on OVID medline to teach transferable information skills. A small cohort study to evaluate students' views on the tutorial and its effects on information skills. Results:, Thirteen objective assessments were usable. There was a statistically significant improvement in mean final assessment scores, compared with mean pre-training scores, F(2,14) = 11.493, P = 0.001. Eleven (85%) students had improved their overall information skills. The improvement in overall searching skills was enhanced by referral to the tutorial. Conclusions:, The tutorial was successfully developed and integrated into a Masters programme curriculum. In this setting, it appears to reinforce active learning, and was well received by students, who developed core generic searching skills and demonstrated improved information skills in the short and longer term. Students could use the tutorial for revision and study at a time and place of their choosing. Further evaluation is required to assess the impact of using the tutorial with large groups of students, and as a stand-alone teaching medium. [source] Institutional Mergers in Australian Higher Educaiton since 1960HIGHER EDUCATION QUARTERLY, Issue 4 2000Grant Harman For the past forty years, institutional mergers have been a major and controversial theme in Australian higher education. Three main phases of major mergers are reviewed with particular attention being paid to reasons for merger, success factors, and longer term results. While merger experiences have often been traumatic for participants and participating institutions, on balance the longer term results have been positive, producing a university system today comprising relatively large and comprehensive institutions, well suited to compete in the new internationally competitive environment. [source] Hillslope-swamp interactions and flow pathways in a hypermaritime rainforest, British ColumbiaHYDROLOGICAL PROCESSES, Issue 15 2003D. F. Fitzgerald Abstract The process of water delivery to a headwater stream in a hypermaritime rainforest was examined using a variety of physical techniques and tracing with dissolved organic carbon (DOC) and the stable isotopes of water. Headwater swamps, often the major discharge zones for water draining off steep forest slopes, strongly affect the physical and chemical character of streamflow in the region. The headwater swamp selected for detailed investigation was sustained by relatively constant groundwater input from the steep colluvial slopes that maintained the water table above the ground surface. During significant storm events the water table rose quickly and the swamp expanded to engulf marginal pools that developed rapidly on the adjacent ground surfaces. The corresponding release of surface water directly to the stream typically comprised up to 95% of total stream discharge. The proportion of groundwater seepage to the stream by matrix flow (<1%) and via macropore-fed springs (up to 73%) increased during the recession period, but could not be sustained over the longer term. In more protracted drying periods, deep groundwater contributions to the stream were routed first to the headwater swamp. Dissolved organic carbon (DOC) in the stream, measured daily or more frequently during storm events, was found to be directly proportional to discharge, owing to the domination of DOC-rich headwater-swamp water sources. Although ,18O and ,2H composition of rainwater, groundwater and stream flow were found to be similar, deuterium excess (d ,2H , 8,18O) of water components was often found to be distinct, and suggested short water residence times of roughly 12 days for one event. Overall, observations of a typical headwater swamp reveal that the groundwater regime is dominated by rapid infiltration and short, emergent flow paths. With a relatively short turnover time, potential disturbances to the system by harvesting of upslope areas can be expected to occur rapidly. Forest managers can mitigate some of the harmful effects of logging operations by respecting the integrity of headwater wetland systems. The nature and magnitude of such perturbations will require further study. Copyright © 2003 John Wiley & Sons, Ltd. [source] Does literacy and numeracy training for adults increase employment and employability?INDUSTRIAL RELATIONS JOURNAL, Issue 5 2008Evidence from the Skills for Life programme in England ABSTRACT The employment effects of participation in adult literacy and numeracy courses are assessed, one year after participation, using a matched comparison, longitudinal design, with difference-in-differences analysis. Employability improvements, but no employment effects, are found. Effects on employment may result in the longer term from an increased likelihood of subsequent training. [source] Mass balance of a slope glacier on Kilimanjaro and its sensitivity to climateINTERNATIONAL JOURNAL OF CLIMATOLOGY, Issue 7 2008Thomas Mölg Abstract Meteorological and glaciological measurements obtained at 5873 m a.s.l. on Kersten Glacier, a slope glacier on the southern flanks of Kilimanjaro, are used to run a physically-based mass balance model for the period February 2005 to January 2006. This shows that net shortwave radiation is the most variable energy flux at the glacier-atmosphere interface, governed by surface albedo. The majority of the mass loss (,65%) is due to sublimation (direct conversion of snow/ice to water vapour), with melting of secondary importance. Sensitivity experiments reveal that glacier mass balance is 2,4 times more sensitive to a 20% precipitation change than to a 1 °C air temperature change. These figures also hold when the model is run with input data representative of a longer term (1979,2004) mean period. Results suggest that a regional-scale moisture projection for the 21st century is crucial to a physically-based prediction of glacier retention on Africa's highest mountain. Copyright © 2007 Royal Meteorological Society [source] Towards regional monetary cooperation in East Asia: lessons from other parts of the worldINTERNATIONAL JOURNAL OF FINANCE & ECONOMICS, Issue 2 2005Masahiro Kawai Abstract This paper discusses regional monetary cooperation for East Asia, by drawing lessons from the European Payments Union, the CFA Franc Zone and the Arab Monetary Fund. Along with the well-known experience of the European Monetary System, these experiences suggest that effective monetary cooperation should include: (1) a surveillance mechanism; (2) a regional financing facility; (3) a common unit of account; and (4) exchange rate coordination. In East Asia, the existing mechanisms of regional surveillance must be strengthened, and the liquidity support mechanism under the Chiang Mai Initiative must evolve into a common pool of foreign exchange reserves. Over the longer term, the region may need to create its own common unit of account and to develop a framework for exchange rate coordination. Copyright © 2005 John Wiley & Sons, Ltd. [source] Controlled and dependent: experiences of living on social assistance in SwedenINTERNATIONAL JOURNAL OF SOCIAL WELFARE, Issue 2 2010Anneli Marttila Marttila A, Whitehead M, Canvin K, Burström B. Controlled and dependent: experiences of living on social assistance in Sweden Int J Soc Welfare 2010: 19: 142,151 © 2009 The Author(s), Journal compilation © 2009 Blackwell Publishing Ltd and the International Journal of Social Welfare. This study explored experiences of people receiving social assistance in 21st-century Sweden, based on 33 in-depth interviews conducted in 2005 and 2006. Two overarching themes emerged from the accounts, encompassing both a material and a psychosocial dimension of living on social assistance. Recipients reported that social assistance was generally sufficient for their basic material needs but allowed for no extras. It was possible to live on social assistance for a short time, but became difficult in the longer term. Perceptions of powerlessness, hopelessness and dependency were common and had the most damaging consequences for the recipients' perceived wellbeing. Some recipients believed that society at large had negative perceptions of people living on social assistance; it was something to be ashamed of but, at the same time, it was the recipients' only possible source of income. Findings of this study are partly similar to previous studies conducted in Sweden, suggesting that improvement in services should take into account the experiences of social assistance recipients. [source] | ||||||||||||||||||||||||||||||||||||||||