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Management Costs (management + cost)
Selected AbstractsCadmium phytoextraction capacity in eight C3 herbage grass speciesGRASSLAND SCIENCE, Issue 1 2008Shamima Sabreen Abstract Grasses are excellent candidates for phytoremediation because of their high biomass production, high adaptability and low management cost. This study assesses interspecific variation of cadmium (Cd) phytoextraction capabilities in eight C3 grass species. Populations of 30-day-old C3 grass species , namely, Agrostis alba, Anthoxanthum odoratum, Dactylis glomerata, Festuca arundinacea, Festuca pratensis, Lolium multiflorum, Lolium perenne and Poa pratensis, were grown hydroponically for 15 days with different concentrations of Cd (0, 5, 10 and 50 µM). For each species, shoot biomass, the proportion of growth inhibition (GI, %), shoot Cd concentration and accumulation, shoot nutrient uptake, and the proportion of uptake inhibition (UI, %) of nutrient minerals were evaluated. Effects of Cd application included stunted growth. The GI increased from 5% to 70% with an increase in Cd concentrations. For all Cd treatments, L. multiflorum showed the highest shoot dry biomass. Shoot Cd concentrations negatively affected mineral nutrient uptake. The highest Cd treatment caused UI of various elements of 37,95%. Under 50-µM Cd treatment, Cd accumulation varied by 20 times among species, and L. multiflorum showed the highest Cd accumulation (116.46 µg plant,1). Our results indicate that L. multiflorum exhibited high degrees of both Cd tolerance and Cd phytoextraction capacity among grass species. [source] A multi-attribute trade-off approach for advancing the management of marine wildlife tourism: a quantitative assessment of heterogeneous visitor preferencesAQUATIC CONSERVATION: MARINE AND FRESHWATER ECOSYSTEMS, Issue 2 2009Christina A.D. Semeniuk Abstract 1.Wildlife tourism can be prone to unmitigated development to promote visitor satisfaction that is all too often progressed at the cost of ecological integrity. A manager is thus faced with the dual task of enhancing the tourist experience and protecting the wildlife species. Accordingly, this mandate requires research into how tourists would respond to proposed wildlife-management plans. 2.This study examines the heterogeneity of tourist preferences for wildlife management at a stingray-feeding attraction in the Cayman Islands, using a latent class stated preference choice model. A sample of visitors to Stingray City Sandbar (SCS) evaluated hypothetical wildlife viewing experiences in a discrete choice experiment. Its scenarios were characterized by seven attributes such as animal-feeding and handling rules, ecological outcomes, social crowding, and management cost (defined as a conservation access fee). 3.The latent class segmentation identified two groups in the population: approximately 68% preferred the implementation of fairly strict management rules, while the other 32% valued more the maintenance of status quo with its intensive human , wildlife interactions. Despite the differences between the ,pro-management' and the ,pro-current' segments, both exhibited a preference for the continuation of feeding and handling the stingrays (albeit at different levels of intensity) suggesting that one effective way to implement any management actions is to alter the promotional and marketing strategies for SCS. Other survey questions on trip experience, conservation values, and socio-demographics were used to define these classes further, with the main distinguishing trait being the level of concern for potential impacts occurring at SCS. The discrepancies between the two segments became most obvious when calculating their respective market shares of support for alternative management strategies. 4.This approach to determining visitor preferences can help explain how the various segments will be affected by management options, and therefore can provide the basis for developing feasible strategies that will assist wildlife managers in maximizing tourist satisfaction while achieving wildlife-protection goals. Copyright © 2008 John Wiley & Sons, Ltd. [source] Streamlining ,search and destroy': cost-effective surveillance for invasive species managementECOLOGY LETTERS, Issue 7 2009Cindy E. Hauser Abstract Invasive species surveillance has typically been targeted to where the species is most likely to occur. However, spatially varying environmental characteristics and land uses may affect more than just the probability of occurrence. Biodiversity or economic value, and the ease of detection and control are also likely to vary. We incorporate these factors into a detection and treatment model of a low-density invader to determine the surveillance strategy that minimizes expected management costs. Sites with a high probability of invader occurrence and great benefits associated with detection warrant intensive surveillance; however, the optimum investment is a nonlinear function of these factors. Environments where the invader is relatively easy to detect are prioritized for surveillance, although only a moderate investment is necessary to ensure a high probability of detection. Intensive surveillance effort may be allocated to other sites if the probability of occurrence, budget and/or expected benefits is sufficiently high. [source] The Financial Accountability of Australia's Medicare System: A Generational Accounting AnalysisFINANCIAL ACCOUNTABILITY & MANAGEMENT, Issue 2 2001Paul J. M. Klumpes The financial sustainability of publicly funded health care systems is sensitive to the demographics of ageing populations, which have a significant bearing on their financial management, accountability and reporting of their financial performance. This paper examines historical and current trends in demographic structure of Australia's population that are likely to impact on the financial management and accountability practices affecting Australia'suniversal public health care system (,Medicare'). The pay-as-you-go financed funding status of Medicare as represented under both currently required, cash-based accounting principles and proposed accrual-based accounting principles are criticised for not recognising the obligations of the Australian government under Medicare. An alternative system of generational accounting is proposed that projects the financial management costs of Medicare. Data are taken from both historical trends in expenditure and ageing as well as projected demographics. The analysis implies that there is significant intergenerational-inequity in the funding of Medicare, which is not recognised under accrual-based accounting principles that are now being used to evaluate the financial accountability and performance of government entities. [source] Could interchangeable use of dry powder inhalers affect patients?INTERNATIONAL JOURNAL OF CLINICAL PRACTICE, Issue 2005D. Price Summary The aim of asthma treatment is optimal disease control. Poor asthma control results in considerable patient morbidity, as well as contributing to the considerable burden placed by the disease on healthcare budgets. There is a need for costs to be carefully scrutinised, with the switching of patients to inhaler devices with lower acquisition costs likely to be increasingly considered. However, before such practice becomes widespread, it is important to establish whether or not this could adversely impact on patients and the level of disease control. For approval to have been given, all marketed inhalers must have satisfied current regulatory requirements for devices. Full preclinical and clinical development programmes are not required when application is made for authorisation to market a new inhaler containing an existing chemical entity, although clinical equivalence testing must be used. Both beneficial and adverse effects should be tested, and the limits of equivalence must be clearly defined, based on therapeutic relevance. It should be noted that equivalence studies are invalid when the end point is not responding (i.e. at the top of the dose,response curve) and when equivalence limits approach or are equal to the magnitude of the drug effect. Approval on the basis of regulations designed to safeguard quality of dry powder inhalers does not mean that devices are interchangeable. When using an inhaler, there are many stages between the patient and the therapeutic effect, involving device design, pharmaceutical performance and patient behaviour. Regulations governing new devices cover only a few of the many factors affecting disease control. Furthermore, clinical trials to assess equivalence may not take into account factors in patient behaviour or variations in patient inhaler technique that may affect use of devices in real-life situations. When assessing the consequences of interchangeable use of dry powder inhalers on healthcare costs, it is important to ensure that the acquisition cost of the devices is not the only cost considered. Other costs that should be considered include the cost of time spent demonstrating to the patient how to use the new device, the cost of additional physician visits to address patient concerns and the management costs if disease control is adversely affected. [source] Willingness to consume and produce transgenic bananas in Costa RicaINTERNATIONAL JOURNAL OF CONSUMER STUDIES, Issue 6 2006Francisco X. Aguilar Abstract An exploratory study of the willingness to produce and consume transgenic bananas was carried out in Costa Rica. Transgenic crops are plants with novel genes incorporated into their genome through the use of genetic engineering techniques. Farm managers' opinions were gathered using faxed questionnaires while final consumers' opinions were obtained through personal intercept interviews. Consumers expressed a lack of knowledge about transgenic crops and had received non-favour but also non-negative information through the media about their adoption. The results of a probit regression model show that, other things being equal, younger, wealthier consumers, with higher levels of education, with smaller households are more likely to consume transgenic bananas. All producers included in the study consider they would adopt a new transgenic variety. Producers' willingness to pay for such a variety would depend on its capacity to reduce pest management costs and is estimated to range between $500 and $999 per hectare. This study stresses the potential for development and adoption of a new transgenic variety that would alleviate the current issues faced by banana farmers. On the other hand, final consumers should be better informed on the nature of such products, their benefits and risks. [source] CREATING VALUE IN PENSION PLANS (OR, GENTLEMEN PREFER BONDS)JOURNAL OF APPLIED CORPORATE FINANCE, Issue 4 2003Jeremy Gold Pension funds are typically one-half to two-thirds invested in equities because equities are expected to outperform other financial assets over the long term, and the long-term nature of pension fund liabilities seems well suited to absorbing any short-term return volatility. What's more, U.S. GAAP currently makes it possible to take credit in advance for the higher anticipated earnings on equity investments without acknowledging their inherent risk. But by allowing the higher expected returns from stocks to reduce a company's current pension expenses, the accounting treatment conflicts with some very basic principles of finance (in particular, the idea that investors must earn higher returns on riskier investments just to "break even"), conceals systematic biases in the actuarial analysis, and gives managers considerable latitude to manipulate the bottom line. The authors suggest a startlingly different approach. They argue that pension assets should be invested entirely in duration-matched debt instruments for two reasons: (1) to capture the full tax benefits of pre-funding their pension obligations and (2) to improve overall corporate risk profiles by converting general stock market risk into firm-specific operating risk, where corporate managers should have a comparative advantage and can generate real value. Investing exclusively in bonds would take better advantage of the tax-exempt status of pension plans and greatly reduce fund management costs, while at the same time helping o shore up fund quality and sharpening corporate executives' focus on their real operating assets. [source] The mechanics of price adjustment: new evidence on the (un)importance of menu costsMANAGERIAL AND DECISION ECONOMICS, Issue 7 2007Rajesh Chakrabarti This paper examines nominal price rigidities in an environment, e-commerce, where literal menu costs can be assumed not to exist. We argue that if we can empirically show that nominal rigidities do still exist in the e-commerce environment, then it implies that other kinds of costs besides menu costs, such as management costs, must be causing these nominal rigidities. This evidence is of importance because of the central role that menu costs play in Keynesian macroeconomics. In this paper we examine the price changing behavior of two leading online booksellers,Amazon.com and BarnesandNoble.com,and find strong evidence that nominal price rigidities do indeed persist on the Internet. Copyright © 2007 John Wiley & Sons, Ltd. [source] | |||||||||||||