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Likely Impact (likely + impact)
Selected AbstractsThe fundamental and realized niche of the Monterey Pine aphid, Essigella californica (Essig) (Hemiptera: Aphididae): implications for managing softwood plantations in AustraliaDIVERSITY AND DISTRIBUTIONS, Issue 4 2004Trudi N. Wharton ABSTRACT Essigella californica is a pine aphid native to western North America. In Australia, E. californica is considered an invasive pest that has the potential to cause severe economic loss to the Australian forestry industry. Two CLIMEX models were developed to predict the Australian and global distribution of E. californica under current climate conditions based upon the aphid's known North American distribution. The first model (model I) was fitted using the reasonably contiguous set of location records in North America that constituted the known range of E. californica, and excluded consideration of a single (reliable) location record of the aphid in southern Florida. The second model (model II) was fitted using all known records in North America. Model I indicated that the aphid would be climatically restricted to the temperate, Mediterranean and subtropical climatic regions of Australia. In northern Australia it would be limited by hot, wet conditions, while in more central areas of Australia it is limited by hot, dry conditions. Model II is more consistent with the current Australian distribution of E. californica. The contrast in geographical range and climatic conditions encompassed between the two models appears to represent the difference between the realized niche (model I) and fundamental niche (model II) of E. californica. The difference may represent the strength of biotic factors such as host limitation, competition and parasitism in limiting geographical spread in the native range. This paper provides a risk map for E. californica colonization in Australia and globally. E. californica is likely to remain a feature of the Australian pine plantations, and any feasibility studies into establishing coniferous plantations in lower rainfall areas should consider the likely impact of E. californica. [source] Functional benefits of predator species diversity depend on prey identityECOLOGICAL ENTOMOLOGY, Issue 5 2005A. Wilby Abstract., 1.,Determining the functional significance of species diversity in natural enemy assemblages is a key step towards prediction of the likely impact of biodiversity loss on natural pest control processes. While the biological control literature contains examples in which increased natural enemy diversity hinders pest control, other studies have highlighted mechanisms where pest suppression is promoted by increased enemy diversity. 2.,This study aimed to test whether increased predator species diversity results in higher rates of predation on two key, but contrasting, insect pest species commonly found in the rice ecosystems of south-east Asia. 3.,Glasshouse experiments were undertaken in which four life stages of a planthopper (Nilaparvata lugens) and a moth (Marasmia patnalis) were caged with single or three-species combinations of generalist predators. 4.,Generally, predation rates of the three-species assemblages exceeded expectation when attacking M. patnalis, but not when attacking N. lugens. In addition, a positive effect of increased predator species richness on overall predation rate was found with M. patnalis but not with N. lugens. 5.,The results are consistent with theoretical predictions that morphological and behavioural differentiation among prey life stages promotes functional complementarity among predator species. This indicates that emergent species diversity effects in natural enemy assemblages are context dependent; they depend not only on the characteristics of the predators species, but on the identity of the species on which they prey. [source] THE ECONOMICS OF ACHIEVING COMPETITIVE BALANCE IN THE AUSTRALIAN FOOTBALL LEAGUE, 1897,2004ECONOMIC PAPERS: A JOURNAL OF APPLIED ECONOMICS AND POLICY, Issue 4 2004Ross Booth This paper summarises some key aspects of a theoretical and empirical analysis of whether various labour market devices and revenue-sharing rules used in the Victorian Football League/Australian Football League (VFL/AFL) since its inception in 1897 have increased competitive balance by reducing the inequality in the distribution of player talent between clubs. The history of labour market intervention and revenue sharing in the VFL/AFL is discussed, with six different periods between 1897 and 2004 identified for analysis. Fort and Quirk's (1995) model of US professional team sports leagues is used to analyse the effectiveness of the various devices that have been used in the VFL/AFL, but only after adapting the model to allow for VFL/AFL clubs being win maximisers (subject to a budget constraint) rather than profit maximisers. The various devices used by the VFL/AFL are assessed in terms of their likely impact on competitive balance, with some significantly different theoretical predictions than under profit maximisation. It is found that free agency results in a less equal distribution of player talent under win maximisation, whilst both gate sharing and increases in shared league-revenue tend to equalise playing strengths (which is not the case under profit maximisation). Moreover, the invariance principle, that the effect of a player draft will be undermined by the sale (and/or trade) of player talent, is found not necessarily to hold under win maximisation and can be reduced or eliminated with a team salary cap. Whether the trade of players and draft choices can undermine a player draft is also considered. The conclusion reached is that a player draft, a team salary cap, and revenue sharing is the combination most likely to succeed in achieving higher levels of competitive balance. The evidence of competitive balance in the VFL/AFL is consistent with these predictions. [source] Research sensitivities to palliative care patientsEUROPEAN JOURNAL OF CANCER CARE, Issue 3 2002J. Addington-Hall phd Research sensitivities to palliative care patients This paper considers the methodological challenges of researching the health care experiences of palliative care patients and their families. Difficulties in defining a ,palliative care patient' are highlighted, and the question of whether there are specific ethical issues when researching palliative care explored. Methodological issues are discussed, including the negotiation of access via health professionals, the choice of appropriate data collection methods and tools, the consequences of high attrition rates and the use of retrospective surveys of bereaved relatives. Key areas for research are identified. These include patients' and families' experiences of research participation, the impact of being approached on those who decline, how the characteristics of those who participate differ from those who do not and the likely impact of this on findings. Research is also needed into patient and family motivations for participation, and whether and how these change as the disease progresses. To ensure that the voices of palliative care patients and their families are heard by both service providers and policy-makers, research in this area needs to address the methodological challenges raised in this paper, as well as continuing to explore users' views. [source] Assessing the Temporary VAT Cut Policy in the UK,FISCAL STUDIES, Issue 1 2009Richard Blundell H2; H3; E21 Abstract This paper concerns the likely impact of a temporary VAT cut stimulus policy on consumer demand in the UK. It suggests that around 75 per cent of the VAT reduction will be passed on to consumers and that consumers will react by maintaining their expenditure levels and therefore increasing their demand for consumption goods. The uncertainty caused by the downturn makes this a more muted impact than we might have hoped, especially on the demand for durable goods. Nevertheless, it is a substantive impact. In general, the uncertainty caused by the recession will tend to reduce the impact of any stimulus package. It is also argued that synchronising the subsequent rise with the economic upturn is critical. [source] Does an employer training levy work?FISCAL STUDIES, Issue 2 2002Britain, The incidence of, returns to adult vocational training in France Abstract We examine two different policy regimes towards continuing vocational training for the adult workforce: policy in France has been interventionist, using an employer training levy since the 1970s, whereas British policy has relied largely on individual initiatives for training investment by employers and workers. We begin with a review of the theory of vocational training, indicating why market failure and underprovision are the likely outcome and signalling types of corrective policy that might be adopted. We set up hypotheses about the likely impact of policy in France relative to Britain to provide a framework for evaluation. We present a detailed comparison of the two systems in observed training incidence and the returns to training captured by workers and employers, drawing on a wide range of econometric studies. We conclude with an assessment of the employer training levy in France and suggest ways it could be modified if adopted in Britain. [source] Fishery-induced demographic changes in the timing of spawning: consequences for reproductive success,FISH AND FISHERIES, Issue 3 2009Peter J. Wright Abstract Demography can have a significant effect on reproductive timing and the magnitude of such an effect can be comparable to environmentally induced variability. This effect arises because the individuals of many fish species spawn progressively earlier within a season and may produce more egg batches over a longer period as they get older, thus extending their lifetime spawning duration. Inter-annual variation in spawning time is a critical factor in reproductive success because it affects the early environmental conditions experienced by progeny and the period they have to complete phases of development. By reducing the average lifetime spawning duration within a fish stock, fishing pressure could be increasing the variability in reproductive success and reducing long-term stock reproductive potential. Empirical estimates of selection on birth date, from experiments and using otolith microstructure, demonstrate that there is considerable variation in selection on birth date both within a spawning season and between years. The few multi-year studies that have linked egg production with the survival of progeny to the juvenile stage further highlight the uncertainty that adults face in timing their spawning to optimize offspring survival. The production of many small batches of eggs over a long period of time within a season and over a lifetime is therefore likely to decrease variance and increase mean progeny survival. Quantifying this effect of demography on variability in survival requires a focus on lifetime reproductive success rather than year specific relationships between recruitment and stock reproductive potential. Modelling approaches are suggested that can better quantify the likely impact of changing spawning times on year-class strength and lifetime reproductive potential. The evidence presented strengthens the need to avoid fishing severely age truncated fish stocks. [source] Hypolithic Plants from Carruthers Peak, Snowy Mountains, New South Wales, AustraliaGEOGRAPHICAL RESEARCH, Issue 4 2009GREGG MÜLLER Abstract Hypolithic plants, plants growing under rocks, have been found from a number of climatically extreme, mostly arid sites from the poles to the equator, but there are limited reports from temperate zones. A brief survey in the Kosciuszko Alpine Area of New South Wales, Australia, revealed four species of moss and one liverwort growing beneath diaphanous quartz pebbles in feldmark vegetation communities. The probable restricted nature of this phenomenon and the likely impact of global warming, tourists and recreation management activities raise concerns for its conservation. [source] Student Finance and Widening Participation in the British Isles: Common Problems, Different SolutionsHIGHER EDUCATION QUARTERLY, Issue 4 2006Nick Adnett Across the British Isles there are common forces encouraging an expansion of higher education (HE) while constraining the ability and willingness of governments to finance it. We examine the nature of these forces and conclude that together they are likely to lead over time to the general taxpayer funding a declining share of HE costs. While there are some potential efficiency and social equity benefits from reforms of student finance motivated by switching more of the costs towards students and their parents, the likely impact of these reforms on widening participation is unclear. We examine the current student finance systems in the British Isles and assess whether or not a system based upon income-contingent student loans, means-tested grants and targeted bursaries can deliver both the desired expansion and widening access. [source] The ecological challenge of immunocontraception: editor's introductionJOURNAL OF APPLIED ECOLOGY, Issue 6 2000N.D. Barlow Summary 1. ,The problems of vertebrate pests are greater now than ever before, with vertebrate control constrained by problems of humaneness, scale and environmental impact. However, immunocontraception involves a conceptually ideal solution. Although not intrinsically novel, its delivery in baits or by a self-spreading vector and its effectiveness in pest control, are now the focus of growing international interest. 2. ,Major ecological questions correspond to the two forms of delivery: baits and vectors. First, given an effective immunocontraceptive, inserted into a bait and eaten by a pest, would the resulting level of sterilization in the population effectively suppress densities? Secondly, given that the immunocontraceptive agent can be inserted into a microparasitic or macroparasitic infective vector, would the modified vector persist at sufficient prevalence in the host population, and hence suppress densities to the required extent? 3. ,The papers published in this Special Profile focus on behaviour following sterilization or they model the likely impact of viral-vectored immunocontraception. They highlight advantages and disadvantages of immunocontraception and some general, novel and specific issues. These include the possibility of behaviourally mediated population responses to fertility control; the possible advantages of a mixed baiting and vector strategy; the competitiveness of a modified vector; the appropriateness of immunocontraception for controlling invasive vertebrates on islands; and the need for a ,pay-off' methodology for assessing genetic modifications against alternatives. 4. ,The findings offer significant benefits for management and policy: they will inform decisions on whether to pursue immunocontraception as a control option, and they provide evidence about efficacy and risk in applications to release genetically modified vectors. 5. ,Although many of the problems in developing immunocontraception technology are biotechnological, questions about the effectiveness of immunocontraceptive pest control are ultimately in the domain of ecologists. [source] Ocean liner shipping: Organizational and contractual response by agribusiness shippers to regulatory changeAGRIBUSINESS : AN INTERNATIONAL JOURNAL, Issue 4 2003Hayden G. Stewart The Ocean Shipping Reform Act of 1998 (OSRA) promotes changes in international ocean liner shipping. An important policy issue attendant to the passage of OSRA is the Act's likely impact on the international competitiveness of the sectors that depend upon ocean shipping. Thus, to establish how freight rates and other logistical costs of using ocean liner services are now determined, this study examines emerging methods of organization and contracting among exporters of food and forest products. We find that, although many shippers negotiate private contracts with carriers, many others utilize a third-party agent to negotiate a rate with a carrier on their behalf. This article also identifies differences between two key types of third-party agents. Finally, given that a shipper in this trade does not contract directly with a carrier, this article explains the shipper's conditional choice about which type of agent to use. [EconLit citations: L140, L980, Q130]. © 2003 Wiley Periodicals, Inc. Agribusiness 19: 459,472, 2003. [source] Fecal occult blood and flexible sigmoidoscopy screening for colorectal cancer: Modeling the impact on colonoscopy requirements and cancer detection ratesJOURNAL OF GASTROENTEROLOGY AND HEPATOLOGY, Issue 4 2001John K Olynyk Abstract Aim: The aim of this study was to estimate the colonoscopy requirements and the likely impact of fecal occult blood and flexible sigmoidoscopy screening on the detection of colorectal cancer by using previously published data. Methods: Fecal occult blood and flexible sigmoidoscopy screening programs were applied to the 2.04 million subjects aged 50,65 years, at a participation rate of 40%. The following strategies were evaluated: Fecal occult blood testing with colonoscopy follow up of all positive tests; flexible sigmoidoscopy with colonoscopy follow up of all adenomatous polyps; and flexible sigmoidoscopy with colonoscopy follow up of all adenomatous polyps > 10 mm in size. Results: The fecal occult blood program detected 5.6% of all colorectal cancer cases at a rate of 2914 colonoscopies/percentage of detection of colorectal cancer. The flexible sigmoidoscopy program detected 14% of all colorectal cancer cases at a rate of 8160 colonoscopies/percentage of detection of colorectal cancer. The flexible sigmoidoscopy program with follow up of adenomatous polyps > 10 mm in size detected 13% of all colorectal cancer cases at a rate of 1230 colonoscopies/percentage of detection of colorectal cancer. Conclusions: Flexible sigmoidoscopy screening followed by colonoscopic follow up of adenomatous polyps > 10 mm in size is the most efficient screening strategy in terms of colonoscopies generated and cases of colorectal cancer detected. [source] Substance Flow Analysis of Mercury Intentionally Used in Products in the United StatesJOURNAL OF INDUSTRIAL ECOLOGY, Issue 3 2007Alexis Cain Mercury-containing products release mercury (Hg) throughout their lifecycles, frequently in ways that are difficult to measure directly. Therefore, there are considerable uncertainties about the magnitude of mercury releases associated with products, about which products and which release pathways contribute the most to mercury releases, and about the likely impact on mercury releases of various possible interventions in the mercury content of products or in the management of mercury-containing wastes. This article presents an effort to use substance flow analysis to develop improved estimates of the environmental releases caused by mercury-containing products and to provide policy-makers with a better understanding of opportunities for reducing releases of mercury caused by products. [source] Welfare Reform in America: A Clash of Politics and ResearchJOURNAL OF SOCIAL ISSUES, Issue 4 2000Diana M. Zuckerman The 1996 welfare reform law radically changed welfare as we knew it, after many years of debate and concerns across the ideological spectrum. Research should have provided essential information to revise the program, but instead, research was used as an ideological weapon to support conflicting points of view. President Clinton promised to end welfare as we know it but his welfare reform plan was superceded by the election of a Republican majority of the House and Senate in 1994. The resulting welfare bill included key elements from the Republican Contract with America. The purpose of this article is to describe how political pressures resulted in a dramatic change in law, despite doomsday predictions and almost no solid information about the law's likely impact. [source] Control techniques for Culicoides biting midges and their application in the U.K. and northwestern PalaearcticMEDICAL AND VETERINARY ENTOMOLOGY, Issue 3 2008S. CARPENTER Abstract The recent emergence of bluetongue virus (Reoviridae: Orbivirus) (BTV) in northern Europe, for the first time in recorded history, has led to an urgent need for methods to control the disease caused by this virus and the midges that spread it. This paper reviews various methods of vector control that have been employed elsewhere and assesses their likely efficacy for controlling vectors of BTV in northern Europe. Methods of controlling Culicoides spp. (Diptera: Ceratopogonidae) have included: (a) application of insecticides and pathogens to habitats where larvae develop; (b) environmental interventions to remove larval breeding sites; (c) controlling adult midges by treating either resting sites, such as animal housing, or host animals with insecticides; (d) housing livestock in screened buildings, and (e) using repellents or host kairomones to lure and kill adult midges. The major vectors of BTV in northern Europe are species from the Culicoides obsoletus (Meigen) and Culicoides pulicaris (L.) groups, for which there are scant data on breeding habits, resting behaviour and host-oriented responses. Consequently, there is little information on which to base a rational strategy for controlling midges or for predicting the likely impact of interventions. However, data extrapolated from the results of vector control operations conducted elsewhere, combined with some assessment of how acceptable or not different methods may be within northern Europe, indicate that the treatment of livestock and animal housing with pyrethroids, the use of midge-proofed stabling for viraemic or high-value animals and the promotion of good farm practice to at least partially eliminate local breeding sites are the best options currently available. Research to assess and improve the efficacy of these methods is required and, in the longer term, efforts should be made to develop better bait systems for monitoring and, possibly, controlling midges. All these studies will need better methods of analysing the ecology and behaviour of midges in the field than are currently in use. The paucity of control options and basic knowledge serve to warn us that we must be better prepared for the possible emergence of other midge-borne diseases, particularly African horse sickness. [source] Variations in prescribing atypical antipsychotic drugs in primary care: cross-sectional studyPHARMACOEPIDEMIOLOGY AND DRUG SAFETY, Issue 4 2002Darren M. Ashcroft Abstract Background Side-effects from conventional antipsychotic drugs, in particular extrapyramidal side-effects, limit their use for some patients, lead to non-compliance and may adversely affect the quality of life of others. Newer, more expensive, ,atypical' antipsychotics have been developed in attempts to address these problems, although debate about the most appropriate role for these medications remains. Objectives To examine variations in prescribing of the ,atypical' antipsychotics in primary care, over a 5-year period. Setting All 13 health authorities within the West Midlands region. Method Cross-sectional analysis of prescribing analysis and cost (PACT) data for atypical antipsychotic drugs (amisulpride, clozapine, olanzapine, risperidone, sertindole, and zotepine) was performed using one-way analysis of variance. To test whether the differences reflected variation in local population need, the prescribing data were adjusted using Mental Illness Needs Index scores. Regression analysis was used to examine the relationship between the overall levels of prescribing and local population need. Results The total volume of prescribing of atypical antipsychotic drugs in primary care increased nearly six-fold from 1996/97 to 2000/01 in the West Midlands region. Olanzapine was the most commonly prescribed drug during 1999/2000, accounting for 45% of defined daily doses, while risperidone accounted for 38% of the total. In 1996/97, a four-fold variation in rates of atypical antipsychotic prescribing between health authorities was found, compared with a three-fold variation in 2000/01, after adjusting for measures of local population need. Conclusions There has been a substantial increase in the prescription of atypical antipsychotics in primary care over the last 5 years, but the rate of increase has varied widely between health authorities. Further studies are needed to determine the factors that have led to these differences in uptake, and the likely impact of national guidance on future prescribing patterns. Copyright © 2002 John Wiley & Sons, Ltd. [source] Electoral Reform: A Vote for Change?POLITICAL INSIGHT, Issue 2 2010Simon Hix The Con,Lib coalition has put voting reform firmly on the agenda but will this really change how the House of Commons and the House of Lords work?Simon Hix, Ron Johnston and Iain McLean explore the proposed reforms and predict their likely impact on the British political scene. [source] ,Are you being converted to partial,?'PRACTICAL DIABETES INTERNATIONAL (INCORPORATING CARDIABETES), Issue 2 2003FRCP Honorary Consultant Physician, JK Wales MD Abstract A new system of partial booking for outpatients is being introduced in the NHS, which will include hospital diabetic clinics. What is the likely impact on the care of patients? Some believe it will make the service more user friendly; others think it will be a long-term disaster. What do you think? Let us know. Copyright © 2003 John Wiley & Sons, Ltd. [source] Breast cancer in young families: a qualitative interview study of fathers and their role and communication with their children following the diagnosis of maternal breast cancerPSYCHO-ONCOLOGY, Issue 1 2009Gillian Forrest Abstract Objective: To explore father,child communication following the diagnosis of maternal breast cancer, examine disparities in their understandings of the impact of the illness, and identify gaps in their need for support and information. Methods: The design is the qualitative interview study with thematic analysis. The interviews were home-based with fathers and children in Oxfordshire, UK. The participants were 26 fathers whose partners had early breast cancer and 31 of their children aged between 6 and 18 years. Results: Fathers described graphically their reaction to news of their partner's breast cancer and their attempts to provide support for their partners and maintain normal family life for their children. Fathers were keen to reassure and protect children but often said that they lacked sufficient information about breast cancer,especially side effects of treatments. Fathers sometimes did not recognise the extent of their children's distress and some interpreted their children's reactions as ,bad behaviour' or ,rudeness'. Children were often acutely aware of the father's emotional state, and expressed a wish to protect him. Some fathers would have liked an opportunity to talk to a clinician directly about the children but did not want to claim clinical time for themselves or their children. Conclusion: This study suggests that clinicians could improve their care of breast cancer patients by being more family-centred. Fathers routinely need more information and preparation about the likely impact of the illness and its treatment (especially side effects) on the mother, and how children of different ages may react to the emotional strain. Clinicians need to be prepared to offer to talk to teenagers. Copyright © 2008 John Wiley & Sons, Ltd. [source] Advances in optical imaging of the newborn infant brainPSYCHOPHYSIOLOGY, Issue 4 2003Jeremy C. Hebden Abstract New methods of imaging the oxygenation, hemodynamics, and metabolism of the newborn infant brain are being developed, based on illumination of the head with near-infrared light. Techniques known as optical topography and optical tomography have the potential to provide valuable information about the function of the normal brain, and about a variety of cerebral pathology such as hypoxic-ischemia. Optical methods provide a unique means of monitoring brain oxygenation safely in an intensive care environment without interference with the normal handling of the infant. Studies on infants have focused on the assessment of steady-state regional cerebral perfusion and tissue oxygenation, as well as monitoring hemodynamic changes in response to sensory stimulation. Recent technological and methodological advances in this research field are reviewed, and the likely impact of optical imaging methods on the care of newborn infants is assessed. [source] Transforming top-down agricultural extension to a participatory system: a study of costs and prospective benefits in EgyptPUBLIC ADMINISTRATION & DEVELOPMENT, Issue 4 2002Gerd Fleischer This article challenges some previous assessments of agricultural extension relying on simple measures of costs per farmer trained. Taking the case of Egypt, five pilot projects that aim to transform the existing agricultural extension system to a participatory system are analysed as regards their cost-effectiveness and prospective cost,benefits. It is shown that the intensity and likely impact of participatory approaches among the different projects vary. Hence, it is insufficient to judge extension programmes by their cost-effectiveness alone. In the case of cotton, for example, the costs per farmer trained are considerably lower than in horticultural crops but there are large differences in prospective benefits which would make investment in participatory extension in the latter more promising. The article calls for a more careful analysis of the costs of extension programmes in agricultural development and identifies four major cost categories, namely base costs, start-up costs, recurrent and farmers' costs. The article also submits that in the context of the debate on privatization of agricultural extension there is a role to be played for the public sector in agriculture. The success of participatory approaches to extension will depend on the quality of services provided in connection with farmer training programmes. Copyright © 2002 John Wiley & Sons, Ltd. [source] Regional Trade Agreements in East Asia: Will They Be Sustainable?,ASIAN ECONOMIC JOURNAL, Issue 2 2009Innwon Park C68; F15; O53 By assessing the sustainability of regional trade agreements (RTAs) for East Asia, we quantitatively evaluate the likely impact of proposed East Asian RTA strategies on the East Asian economies and the world economy with respect to consumption, production, volume of trade and terms of trade effects by applying a multi-country and multi-sector computable general equilibrium model. These strategies include: (i) the ASEAN Free Trade Area (AFTA: a being-left-alone strategy); (ii) an ASEAN Hub RTA (a hub-and-spoke type of overlapping RTA strategy); (iii) the AFTA versus a China,Japan,Korea RTA (a duplicating or competing RTA strategy); and (iv) an ASEAN+3 RTA (an expansionary RTA strategy). We find that an expansionary ASEAN+3 RTA could be a sustainable policy option because the members' gains would be significantly positive, with more equitably distributed gains between members than when using other strategies. The effect on world welfare would also be positive and the negative effect on nonmembers would not be very strong. More interestingly, if the East Asian countries cooperate with Pacific Basin countries to form an APEC-level RTA, such as a free trade area of the Asia-Pacific, the extension of the regional trade bloc might be considered a more desirable policy option than the proposed East Asian RTAs for East Asian economies, even though countries excluded from the free trade area of the Asia Pacific are worse off. [source] The challenge of hazardous waste management in a sustainable environment: insights from electronic recovery lawsCORPORATE SOCIAL RESPONSIBILITY AND ENVIRONMENTAL MANAGEMENT, Issue 1 2005J. Halluite Abstract New and pending regulations requiring product take-back by manufacturers at the time of disposal are intended to create a new era of industrial ecology and environmental sustainability. However, the intended benefits of the current legislation can be confounded by obsolescence in product design based upon advances in science and technology and also by the introduction of more environmentally benign product designs. Recent changes in legislation are identified and, based upon an extensive industry survey, their resultant likely impacts on consumer electronics are considered. This industry study illustrates that unless the impacted products simultaneously possess both stable designs and input requirements then significant secondary environmental issues related to the waste storage will be encountered. Inherently, these issues cause serious societal problems when hazardous substances are involved , which is the case with many products from the electronics industry. Copyright © 2005 John Wiley & Sons, Ltd and ERP Environment. [source] Will increased storm disturbance affect the biodiversity of intertidal, nonscleractinian sessile fauna on coral reefs?GLOBAL CHANGE BIOLOGY, Issue 11 2008S. J. WALKER Abstract Relatively little is known about how the future effects of climatic change, including increases in sea level, temperature and storm severity and frequency, will impact on patterns of biodiversity on coral reefs, with the notable exception of recent work on corals and fish in tropical reef ecosystems. Sessile invertebrates such as ascidians, sponges and bryozoans occupying intertidal rubble habitats on coral reefs contribute significantly to the overall biodiversity and ecosystem function, but there is little or no information available on the likely impacts on these species from climate change. The existing strong physical gradients in these intertidal habitats will be exacerbated under predicted climatic change. By examining the distribution and abundance of nonscleractinian, sessile invertebrate assemblages exposed to different levels of wave action and at different heights on the shore around a coral reef, we show that coral reef intertidal biodiversity is particularly sensitive to physical disturbance. As physical disturbance regimes increase due to more intense storms and wave action associated with global warming, we can expect to see a corresponding decrease in the diversity of these cryptic sessile assemblages. This could impact negatively on the future health and productivity of coral reef ecosystems, given the ecosystem services these organisms provide. [source] International tourism as bricolage: an analysis of central Europe on the brink of European Union membershipINTERNATIONAL JOURNAL OF TOURISM RESEARCH, Issue 2 2005Vladimír Balá Abstract This paper examines the trajectory of international tourism and its economic role in the Czech Republic, Hungary, Poland and Slovakia during the post-1989 transition, leading to their European Union (EU) accession in 2004. Although there are relatively simple, and broadly comparable, trends in all four countries in visitor and tourism flows, this is based on chaotic conceptualisation of international mobility. This apparent bricolage is explored further by considering the role of international tourism in the formal and informal economies. In general, there has been as much change as continuity in the transition period, and this provides the dominant frame of reference for understanding the likely impacts of EU membership. Copyright © 2005 John Wiley & Sons, Ltd. [source] REVIEW: Mechanisms driving change: altered species interactions and ecosystem function through global warmingJOURNAL OF ANIMAL ECOLOGY, Issue 5 2010Lochran W. Traill Summary 1.,We review the mechanisms behind ecosystem functions, the processes that facilitate energy transfer along food webs, and the major processes that allow the cycling of carbon, oxygen and nitrogen, and use case studies to show how these have already been, and will continue to be, altered by global warming. 2.,Increased temperatures will affect the interactions between heterotrophs and autotrophs (e.g. pollination and seed dispersal), and between heterotrophs (e.g. predators-prey, parasites/pathogens-hosts), with generally negative ramifications for important ecosystem services (functions that provide direct benefit to human society such as pollination) and potential for heightened species co-extinction rates. 3.,Mitigation of likely impacts of warming will require, in particular, the maintenance of species diversity as insurance for the provision of basic ecosystem services. Key to this will be long-term monitoring and focused research that seek to maintain ecosystem resilience in the face of global warming. 4.,We provide guidelines for pursuing research that quantifies the nexus between ecosystem function and global warming. These include documentation of key functional species groups within systems, and understanding the principal outcomes arising from direct and indirect effects of a rapidly warming environment. Localized and targeted research and monitoring, complemented with laboratory work, will determine outcomes for resilience and guide adaptive conservation responses and long-term planning. [source] Recovery From Skeletal Fluorosis (an Enigmatic, American Case),,JOURNAL OF BONE AND MINERAL RESEARCH, Issue 1 2007Etah S Kurland Abstract A 52-year-old man presented with severe neck immobility and radiographic osteosclerosis. Elevated fluoride levels in serum, urine, and iliac crest bone revealed skeletal fluorosis. Nearly a decade of detailed follow-up documented considerable correction of the disorder after removal of the putative source of fluoride (toothpaste). Introduction: Skeletal fluorosis, a crippling bone disorder, is rare in the United States, but affects millions worldwide. There are no data regarding its reversibility. Materials and Methods: A white man presented in 1996 with neck immobility and worsening joint pains of 7-year duration. Radiographs revealed axial osteosclerosis. Bone markers were distinctly elevated. DXA of lumbar spine (LS), femoral neck (FN), and distal one-third radius showed Z scores of +14.3, +6.6, and ,0.6, respectively. Transiliac crest biopsy revealed cancellous volume 4.5 times the reference mean, cortical width 3.2 times the reference mean, osteoid thickness 25 times the reference mean, and wide and diffuse tetracycline uptake documenting osteomalacia. Fluoride (F) was elevated in serum (0.34 and 0.29 mg/liter [reference range: <0.20]), urine (26 mg/liter [reference range: 0.2,1.1 mg/liter]), and iliac crest (1.8% [reference range: <0.1%]). Tap and bottled water were negative for F. Surreptitious ingestion of toothpaste was the most plausible F source. Results: Monitoring for a decade showed that within 3 months of removal of F toothpaste, urine F dropped from 26 to 16 mg/liter (reference range: 0.2,1.1 mg/liter), to 3.9 at 14 months, and was normal (1.2 mg/liter) after 9 years. Serum F normalized within 8 months. Markers corrected by 14 months. Serum creatinine increased gradually from 1.0 (1997) to 1.3 mg/dl (2006; reference range: 0.5,1.4 mg/dl). Radiographs, after 9 years, showed decreased sclerosis of trabeculae and some decrease of sacrospinous ligament ossification. DXA, after 9 years, revealed 23.6% and 15.1% reduction in LS and FN BMD with Z scores of +9.3 and +4.8, respectively. Iliac crest, after 8.5 years, had normal osteoid surface and thickness with distinct double labels. Bone F, after 8.5 years, was 1.15% (reference range, <0.1), which was a 36% reduction (still 10 times the reference value). All arthralgias resolved within 2 years, and he never fractured, but new-onset nephrolithiasis occurred within 9 months and became a chronic problem. Conclusions: With removal of F exposure, skeletal fluorosis is reversible, but likely impacts for decades. Patients should be monitored for impending nephrolithiasis. [source] Feeding habits of chimpanzees (Pan troglodytes), red-tail monkeys (Cercopithecus ascanius schmidti) and blue monkeys (Cercopithecus mitis stuhlmanii) on figs in Budongo Forest Reserve, UgandaAFRICAN JOURNAL OF ECOLOGY, Issue 2 2001Mnason Tweheyo Abstract Feeding habits of chimpanzees, red-tail and blue monkeys on figs (Ficus) were studied in compartment N3 of Budongo Forest Reserve, western Uganda, from September 1997 to March 1998. The aim was to examine the spatial and temporal foraging habits of chimpanzees, red-tail monkeys and blue monkeys on figs in the forest reserve. Both scan and focal sampling methods were used to assess the foraging habits of the primates. It was found that the primates fed on emerging leaves of Ficus mucuso Ficalho, F. varifolia Warb. and F. exasperata Vahl. They also preferred ripe fruits to emerging, young and unripe fruits. The primates spent 78% of the morning eating fruits and leaves and inhabited fig trees with fruits for about 4 h. Fig trees with ripe fruits attracted larger numbers of primate groups. It is concluded that information on the feeding habits of chimpanzees and monkeys is required in order to have a clear understanding of the social behaviour and pattern of movement of the primates and to assist in predicting the likely impacts of poor forest management, forest degradation and loss of food resources on their populations. Résumé On a étudié les habitudes alimentaires des chimpanzés, des red tails et des cercopithèques à diadème dans les figuiers (Ficus), dans le compartiment N3 de la Réserve Forestière de Budongo, à l'ouest de l'Ouganda, de septembre 1997 à mars 1998. Le but était d'examiner les habitudes alimentaires, dans l'espace et dans le temps, des chimpanzés, des red tails et des cercopithèques à diadème, dans les figuiers de la réserve forestière. On a utilisé les méthodes par scanner et par échantillonnage focal pour évaluer les habitudes alimentaires des primates. On a découvert que les primates se nourrissaient des jeunes feuilles de Ficus mucoso Ficalho, de F.varifolia Warb et de F.exasperata Vahl. Ils préféraient aussi les fruits mûrs aux fruits verts. Les primates passaient 78% de la matinée à manger des fruits et des feuilles et restaient environ 4 heures dans les figuiers qui avaient des fruits. Les figuiers dont les fruits étaient mûrs attiraient un plus grand nombre de groupes de primates. On en a conclu qu'il était nécessaire d'avoir des informations sur les habitudes alimentaires des chimpanzés et des singes pour bien comprendre le comportement social et schéma de déplacement des primates et pour aider à prévoir les impacts éventuels d'une piètre gestion forestière, de la dégradation de la forêt et de la disparition des ressources alimentaires sur leurs populations. [source] Critical considerations for future action during the second commitment period: A small islands' perspectiveNATURAL RESOURCES FORUM, Issue 2 2007Leonard Nurse Abstract If the objective of the United Nations Framework Convention on Climate Change (UNFCCC) is to be achieved, Parties must commit themselves to meeting meaningful long-term targets that, based on current knowledge, would minimize the possibility of irreversible climate change. Current indications are that a global mean temperature rise in excess of 2,3 °C would enhance the risk of destabilizing the climate system as we know it, and possibly lead to catastrophic change such as a shutdown of the deep ocean circulation, and the disintegration of the West Arctic Ice Sheet. Observations have shown that for many small island developing States (SIDS), life-sustaining ecosystems such as coral reefs, already living near the limit of thermal tolerance, are highly climate-sensitive, and can suffer severe damage from exposure to sea temperatures as low as 1 °C above the seasonal maximum. Other natural systems (e.g., mangroves) are similarly susceptible to relatively low temperature increases, coupled with small increments of sea level rise. Economic and social sectors, including agriculture and human health, face similar challenges from the likely impacts of projected climate change. In light of known thresholds, this paper presents the view that SIDS should seek support for a temperature cap not exceeding 1.5,2.0 °C above the pre-industrial mean. It is argued that a less stringent post-Kyoto target would frustrate achievement of the UNFCCC objective. The view is expressed that all countries which emit significant amounts of greenhouse gases should commit to binding reduction targets in the second commitment period, but that targets for developing countries should be less stringent than those agreed for developed countries. Such an arrangement would be faithful to the principles of equity and would ensure that the right of Parties to attain developed country status would not be abrogated. [source] Climate Change and Emergency Medicine: Impacts and OpportunitiesACADEMIC EMERGENCY MEDICINE, Issue 8 2009Jeremy J. Hess MD Abstract There is scientific consensus that the climate is changing, that human activity plays a major role, and that the changes will continue through this century. Expert consensus holds that significant health effects are very likely. Public health and health care systems must understand these impacts to properly pursue preparedness and prevention activities. All of medicine will very likely be affected, and certain medical specialties are likely to be more significantly burdened based on their clinical activity, ease of public access, public health roles, and energy use profiles. These specialties have been called on to consider the likely impacts on their patients and practice and to prepare their practitioners. Emergency medicine (EM), with its focus on urgent and emergent ambulatory care, role as a safety-net provider, urban concentration, and broad-based clinical mission, will very likely experience a significant rise in demand for its services over and above current annual increases. Clinically, EM will see amplification of weather-related disease patterns and shifts in disease distribution. In EM's prehospital care and disaster response activities, both emergency medical services (EMS) activity and disaster medical assistance team (DMAT) deployment activities will likely increase. EM's public health roles, including disaster preparedness, emergency department (ED)-based surveillance, and safety-net care, are likely to face increasing demands, along with pressures to improve fuel efficiency and reduce greenhouse gas emissions. Finally, EM's roles in ED and hospital management, particularly related to building and purchasing, are likely to be impacted by efforts to reduce greenhouse gas emissions and enhance energy efficiency. Climate change thus presents multiple clinical and public health challenges to EM, but also creates numerous opportunities for research, education, and leadership on an emerging health issue of global scope. [source] | |||||||||||||||||||||||||