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Significant Costs (significant + cost)
Terms modified by Significant Costs Selected AbstractsPtex: Per-Face Texture Mapping for Production RenderingCOMPUTER GRAPHICS FORUM, Issue 4 2008Brent Burley Explicit parameterization of subdivision surfaces for texture mapping adds significant cost and complexity to film production. Most parameterization methods currently in use require setup effort, and none are completely general. We propose a new texture mapping method for Catmull-Clark subdivision surfaces that requires no explicit parameterization. Our method, Ptex, stores a separate texture per quad face of the subdivision control mesh, along with a novel per-face adjacency map, in a single texture file per surface. Ptex uses the adjacency data to perform seamless anisotropic filtering of multi-resolution textures across surfaces of arbitrary topology. Just as importantly, Ptex requires no manual setup and scales to models of arbitrary mesh complexity and texture detail. Ptex has been successfully used to texture all of the models in an animated theatrical short and is currently being applied to an entire animated feature. Ptex has eliminated UV assignment from our studio and significantly increased the efficiency of our pipeline. [source] Cost of Alzheimer's disease in a developing country settingINTERNATIONAL JOURNAL OF GERIATRIC PSYCHIATRY, Issue 7 2005M. Zencir Abstract Purpose To evaluate the economic impact of AD in Denizli, Turkey. Design and Methods This observational study was conducted with 42 AD patients and their primary caregivers. During the initial interview, demographic data and medical histories were collected with questionnaires. For an observational period of 15 days, data on time spent for patient care were collected using standard forms. Calculations on direct cost (e.g. per day medication, outpatient physician visits during the last 3 months), indirect cost (e.g. time spent for care by caregiver for daily living (ADL) and instrumental activity of daily living (IADL)) were made by summing up and taking averages of the appropriate items. ANOVA, and linear regressions were the methods for comparisons. Results The primary caregivers of the patients mainly were their children and/or spouses. The maximum mean time spent (h/week) was 21.0 (17.5) for severely damaged cognition. The average annual cost per case was between $1,766 [95% Confidence Intervals (CI); 1.300,2.231] and $4,930 (95% CI; 3.3714,6.147). The amount of caregiver cost was the most significant item in the overall cost and it showed an increase with the declining cognitive function of patients. Daily medication cost reflected the same pattern. In contrast, cost of outpatient physician was the lowest among the patients with the worst cognition. Conclusions These results suggest that recently AD has become a significant cost for developing countries. This pilot study gives an idea of the cost of AD in developing countries where determining the actual cost can be difficult. Copyright © 2005 John Wiley & Sons, Ltd. [source] SIX CHALLENGES IN DESIGNING EQUITY-BASED PAYJOURNAL OF APPLIED CORPORATE FINANCE, Issue 3 2003Brian J. Hall The past two decades have seen a dramatic increase in the equitybased pay of U.S. corporate executives, an increase that has been driven almost entirely by the explosion of stock option grants. When properly designed, equity-based pay can raise corporate productivity and shareholder value by helping companies attract, motivate, and retain talented managers. But there are good reasons to question whether the current forms of U.S. equity pay are optimal. In many cases, substantial stock and option payoffs to top executives,particularly those who cashed out much of their holdings near the top of the market,appear to have come at the expense of their shareholders, generating considerable skepticism about not just executive pay practices, but the overall quality of U.S. corporate governance. At the same time, many companies that have experienced sharp stock price declines are now struggling with the problem of retaining employees holding lots of deep-underwater options. This article discusses the design of equity-based pay plans that aim to motivate sustainable, or long-run, value creation. As a first step, the author recommends the use of longer vesting periods and other requirements on executive stock and option holdings, both to limit managers' ability to "time" the market and to reduce their incentives to take shortsighted actions that increase near-term earnings at the expense of longer-term cash flow. Besides requiring "more permanent" holdings, the author also proposes a change in how stock options are issued. In place of popular "fixed value" plans that adjust the number of options awarded each year to reflect changes in the share price (and that effectively reward management for poor performance by granting more options when the price falls, and fewer when it rises), the author recommends the use of "fixed number" plans that avoid this unintended distortion of incentives. As the author also notes, there is considerable confusion about the real economic cost of options relative to stock. Part of the confusion stems, of course, from current GAAP accounting, which allows companies to report the issuance of at-the-money options as costless and so creates a bias against stock and other forms of compensation. But, coming on top of the "opportunity cost" of executive stock options to the company's shareholders, there is another, potentially significant cost of options (and, to a lesser extent, stock) that arises from the propensity of executives and employees to place a lower value on company stock and options than well-diversified outside investors. The author's conclusion is that grants of (slow-vesting) stock are likely to have at least three significant advantages over employee stock options: ,they are more highly valued by executives and employees (per dollar of cost to shareholders); ,they continue to provide reasonably strong ownership incentives and retention power, regardless of whether the stock price rises or falls, because they don't go underwater; and ,the value of such grants is much more transparent to stockholders, employees, and the press. [source] Model-based cost-effectiveness analysis of interventions aimed at preventing medication error at hospital admission (medicines reconciliation)JOURNAL OF EVALUATION IN CLINICAL PRACTICE, Issue 2 2009Jonathan Karnon MSc PhD Abstract Rationale, Medication errors can lead to preventable adverse drug events (pADEs) that have significant cost and health implications. Errors often occur at care interfaces, and various interventions have been devised to reduce medication errors at the point of admission to hospital. The aim of this study is to assess the incremental costs and effects [measured as quality adjusted life years (QALYs)] of a range of such interventions for which evidence of effectiveness exists. Methods, A previously published medication errors model was adapted to describe the pathway of errors occurring at admission through to the occurrence of pADEs. The baseline model was populated using literature-based values, and then calibrated to observed outputs. Evidence of effects was derived from a systematic review of interventions aimed at preventing medication error at hospital admission. Results, All five interventions, for which evidence of effectiveness was identified, are estimated to be extremely cost-effective when compared with the baseline scenario. Pharmacist-led reconciliation intervention has the highest expected net benefits, and a probability of being cost-effective of over 60% by a QALY value of £10 000. Conclusions, The medication errors model provides reasonably strong evidence that some form of intervention to improve medicines reconciliation is a cost-effective use of NHS resources. The variation in the reported effectiveness of the few identified studies of medication error interventions illustrates the need for extreme attention to detail in the development of interventions, but also in their evaluation and may justify the primary evaluation of more than one specification of included interventions. [source] Neurodevelopmental outcomes and surgery in neonatesJOURNAL OF PAEDIATRICS AND CHILD HEALTH, Issue 12 2006Karen Walker Abstract: A neonate requiring major surgery in 2006 has a greater prospect of survival than ever before. Increasingly, however, there is awareness that critical illness may affect later neurodevelopment. Pre-existing conditions in addition to the physiologic stresses associated with cardiac and general surgery are implicated but remain unavoidable in the case of significant structural abnormalities such as transposition of the great arteries or congenital diaphragmatic hernia. For those affected by neurodevelopmental impairment, there is a significant cost to the child, family and society. Current research focuses on the preventable causes of brain injury, before, during and after the intervention, and the rate of impairment in apparently uncomplicated procedures. In contrast to the quantity of neurodevelopmental outcome data following cardiac surgery, there remain few outcome studies dealing with non-cardiac surgery despite such intervention being two to three times more common. There appear to be compelling clinical and economic arguments for the instigation of formalised population-based developmental assessments for all infants undergoing major surgery. [source] Consequences of shrub expansion in mesic grassland: Resource alterations and graminoid responsesJOURNAL OF VEGETATION SCIENCE, Issue 4 2003Michelle S. Lett Anon. (1986) Abstract. In the mesic grasslands of the central United States, the shrub Cornus drummondii has undergone widespread expansion in the absence of recurrent fire. We quantified alterations in light, water and N caused by C. drummondii expansion in tall-grass prairie and assessed the hypothesis that these alterations are consistent with models of resource enrichment by woody plants. Responses in graminoid species, particularly the dominant C4 grass Andropogon gerardii, were concurrently evaluated. We also removed established shrub islands to quantify their legacy effect on resource availability and assess the capability of this grassland to recover in sites formerly dominated by woody plants. The primary effect of shrub expansion on resource availability was an 87% reduction in light available to the herbaceous understorey. This reduced C uptake and N use efficiency in A. gerardii and lowered graminoid cover and ANPP at the grass-shrub ecotone relative to undisturbed grassland. Shrub removal created a pulse in light and N availability, eliciting high C gain in A. gerardii in the first year after removal. By year two, light and N availability within shrub removal areas returned to levels typical of grassland, as had graminoid cover and ANPP were similar to those in open grassland. Recovery within central areas of shrub removal sites lagged behind that at the former grass-shrub ecotone. These results indicate that the apparent alternative stable state of C. drummondii dominance in tall-grass prairie is biotically maintained and driven by reductions in light, rather than resource enrichment. Within areas of shrub removal, the legacy effect of C. drummondii dominance is manifest primarily through the loss of rhizomes of the dominant grasses, rather than any long-term changes in resource availability. C. drummondii removal facilitates grassland recovery, but the effort required to initiate this transition is a significant cost of woody plant expansion in mesic grasslands. Prevention of woody plant expansion in remnant tall-grass prairies is, therefore, a preferred management option. [source] Using scanning electron, confocal and optical microscopes to measure microscopic holes in traysPACKAGING TECHNOLOGY AND SCIENCE, Issue 6 2005Laura Bix Abstract Package integrity is of paramount importance to the medical device industry. As healthcare costs soar and integrity testers become more and more sensitive, concern with the question ,what hole size allows microbial penetration into device packages?' is re-ignited. However, producing a consistent and measurable defect in the microcosm presents challenges. Varying techniques are currently employed to produce these defects. Use of an excimer laser is one of the most precise and accurate techniques, and holes ,certified' to be a given size can be purchased at a significant cost. To verify the accuracy and precision of holes drilled with an excimer laser, researchers measured laser-drilled ,exit' and ,entry' holes in glycol-modified polyetheylene terephthalate (PETG) trays using scanning electron microscopy (SEM) and confocal microscopy. This data and the certification data provided by the laser driller were analysed using a mixed-model analysis of variance (ANOVA). Both the effect of measuring technique and hole side (entry vs. exit) were found to be significant. These significant differences have the potential to impact the question that the industry faces with regard to penetration threshold. This suggests that a shift in thinking is needed. Perhaps it would be better if the industry stops thinking about hole size and begins to think in terms of what researchers have referred to as the ,effective hole', which is defined as the volume of gas that will flow through a hole of defined size per unit time. Copyright © 2005 John Wiley & Sons, Ltd. [source] Aluminium production options with a focus on the use of a hydrogen anode: a reviewASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING, Issue 5 2007Sankar Namboothiri Abstract The Hall,Héroult process for the production of aluminium uses a consumable carbon anode. Owing to the environmental effects of the consumable carbon anodes, the primary aluminium industry is under increasing pressure to improve on the Hall,Héroult process to make it more environmentally friendly. Inert anodes would provide a major technical revolution, as they may yield significant cost, energy and environmental benefits. However, no fully acceptable inert anode material has been developed to date. Other alternative technologies had been investigated and tested, but with little success so far. The use of a hydrogen anode for the production of aluminium is an interesting concept, as it will have the same reversible voltage as a carbon anode in a conventional Hall,Héroult cell, and it will considerably reduce greenhouse gas emissions. This paper reviews the various process options for aluminium electrowinning with a focus on the application of hydrogen anode in aluminium electrowinning. Copyright © 2007 Curtin University of Technology and John Wiley & Sons, Ltd. [source] Arboreal substrates influence foraging in tropical antsECOLOGICAL ENTOMOLOGY, Issue 4 2010NATALIE A. CLAY 1. Physically complex substrates impart significant costs on cursorial central-place foragers in terms of time spent outside the nest and total distance travelled. Ants foraging in trees navigate varied surfaces to access patchy resources, thus providing an appropriate model system for examining interactions between foraging efficiency and substrates. 2. We expected that the speed of recruitment, body size distribution and species richness of foraging arboreal ants would differ predictably among common substrate types occurring on tropical tree trunks. We measured changes in ant abundance and species composition over time at baits placed on bare tree bark, moss-covered bark, and vine-like vegetation appressed to bark. We also measured average body size and body size frequency on the three substrate types. Ants discovered baits sooner and accumulated at baits relatively faster when using vine substrates as the primary foraging trail. Average body size was smaller on vine substrates than on bark. Experimental removal of vine and moss substrates nullified these differences. Contrary to our predictions, species richness and body size distributions did not differ among the three substrate types, due in part to the frequent presence of a few common ground-nesting species at baits on bare bark. 3. Our results collectively indicate that linear substrates facilitate access of foraging ants to patchy resources. Ant use of vine-like substrates appears to be opportunistic; vine use is not confined to certain species nor constrained by body size. [source] THE GOOD, THE BAD AND THE UGLY: ECONOMIC PERSPECTIVES ON REGULATION IN AUSTRALIAECONOMIC PAPERS: A JOURNAL OF APPLIED ECONOMICS AND POLICY, Issue 1 2004Gary Banks Chairman The paper examines the existing scope and role of regulations in Australia. While there are many benefits from regulation, there is also a myriad of, often underplayed, costs associated with regulations. While compliance costs are large, probably the most significant costs arise from behavioural responses to regulations that reduce efficiency or compromise social goals. These adverse effects are often unanticipated and arise from complex interactions between regulations. The main reasons for regulatory failure are excessive ambition (underestimating the deficiencies of the regulatory ,solution'), capture of regulatory agencies, and poor regulatory processes and institutions. The paper offers some guidelines for producing better regulation. [source] Salt-water recycling for brine production at road-salt-storage facilitiesENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY, Issue 4 2009G. Michael Fitch Abstract This research investigates the storm-water quality at road-salt-storage facilities located at Virginia Department of Transportation (VDOT) winter maintenance locations and investigates the feasibility of a sustainable solution to better manage the salt-contaminated storm-water runoff. Collection ponds are currently used at most salt-storage sites to contain highly saline runoff and prevent its release into the environment. During a synoptic, winter-time sampling, chloride-ion concentrations in these ponds were found to be significantly greater than state and federal regulatory guidelines for surface-water-quality criteria, with individual values exceeding 2000 mg/L. The pond water is currently treated as a waste product by VDOT, resulting in significant costs for disposal. However, this saline pond water can potentially be recycled to produce concentrated brine solutions, which can then be used by VDOT for either prewetting dry salt during application to roadways or for direct brine application. Laboratory and field tests have been performed using a bench-scale brine generation system to quantify the effects of hydraulic retention time, temperature, and influent-water quality on system performance. Results of these studies have found that the storm-water runoff captured in collection ponds requires no pretreatment before entering the brine generation system and can effectively produce brine at the target salt concentration. Results of a cost-benefit analysis indicate that it is possible under multiple scenarios to recover the investment capital of implementing brine generation at all VDOT winter maintenance locations, typically within a 4-year horizon. © 2009 American Institute of Chemical Engineers Environ Prog, 2009 [source] Air Pollution from Secondary Aluminum Production: Determining the Applicability of MACT RequirementsENVIRONMENTAL QUALITY MANAGEMENT, Issue 4 2001Mario G. Cora EPA's Maximum Achievable Control Technology rule for secondary aluminum production is intended to substantially reduce emissions of hazardous air pollutants. It may also impose significant costs on affected facilities. © 2001 John Wiley & Sons, Inc. [source] ISOLATING CONNECTIONS , CONNECTING ISOLATIONSGEOGRAFISKA ANNALER SERIES B: HUMAN GEOGRAPHY, Issue 4 2009Eric Clark ABSTRACT. The varied and distinct ways we connect can facilitate or impose isolation, our own or someone else's. Different forms of isolation are themselves interconnected and sometimes enrich our connecting. The relation between isolation and connection, we argue, is one of complementarity, like Calvino's ,two inseparable and complementary functions of life ,syntony, or participation in the world around us , [and] focalization or constructive concentration.' Solitude sought can enhance connections. Imposed isolation weakens connections in ways both obvious and subtle. This contrast between sought and imposed underscores the influence of hierarchy and socially produced inequities, excesses of which fragment the social ties that could constrain or diminish these same inequities. Deep inequity degrades the quality of both connections and isolation, at significant costs to our health, ecology, economy, cultural diversity, and political vitality. From this vantage point, we cull ways to improve our syntony and our focalization, fulfilling by expressing those shared egalitarian moral sentiments that motivate connections of solidarity partly in the interest of being "left alone". [source] Sympatry with the devil: reproductive interference could hamper species coexistenceJOURNAL OF ANIMAL ECOLOGY, Issue 4 2007AXEL HOCHKIRCH Summary 1As species are often considered discrete natural units, interspecific sexual interactions are often disregarded as potential factors determining community composition. Nevertheless reproductive interference, ranging from signal jamming to hybridization, can have significant costs for species sharing similar signal channels. 2We combined laboratory and field experiments to test whether the coexistence of two congeneric ground-hopper species with overlapping ranges might be influenced by sexual interactions. 3In the laboratory experiment the number of conspecific copulations of Tetrix ceperoi decreased substantially in the presence of Tetrix subulata. Males of T. ceperoi performed more mating attempts with heterospecific females, whereas females of T. subulata rejected these heterospecific approaches more often than those of conspecifics. Although no heterospecific matings occurred in the laboratory, the reproductive success of T. ceperoi was reduced substantially in field experiments. Negative effects on T. subulata were found only at high densities. 4Our results suggest that reproductive interference could have similar consequences as competition, such as demographic displacement of one species (,sexual exclusion'). As reproductive interference should be selected against, it may also drive the evolution of signals (reproductive character displacement) or promote habitat, spatial or temporal segregation. [source] Pay Without Performance: Overview of the IssuesJOURNAL OF APPLIED CORPORATE FINANCE, Issue 4 2005Lucian A. Bebchuk In their recent book, Pay Without Performance: The Unfulfilled Promise of Executive Compensation, the authors of this article provided a comprehensive critique of U.S. executive pay practices and the corporate governance processes that produce them, and then offered a number of proposals for improving both pay and governance. This article presents an overview of their analysis and proposals. The authors' analysis suggests that the pay-setting process in U.S. public companies has strayed far from the economist's model of "arm's-length contracting" between executives and boards in a competitive labor market. In place of this conventional model, which is standard in corporate law as well as economics, the authors argue that managerial power and influence play a major role in shaping executive pay, and in ways that end up imposing significant costs on investors and the economy. The main concern is not the levels of executive pay, but rather the distortion of incentives caused by compensation practices that fail to tie pay to performance and to limit executives' ability to sell their shares. Also troubling are "the correlation between power and pay, the systematic use of compensation practices that obscure the amount and performance insensitivity of pay, and the showering of gratuitous benefits on departing executives." To address these problems, the authors propose three kinds of changes: 1)increases in transparency, accomplished in part by new SEC rules requiring annual corporate disclosure that provides "the dollar value of all forms of compensation" (including "stealth compensation" in the form of pensions and other post-retirement benefits) and an analysis of the relationship between the past year's pay and performance, as well as more timely and informative disclosure of insider stock purchases and sales; 2)improvements in pay practices, including greater use of "indexed" stock and options to limit "windfalls," tougher limits on executives' freedom to sell shares, and greater use of "clawback" provisions in bonus plans that would force executives to return pay for performance that proves to be temporary; and 3)improvements in board accountability to shareholders, including limits on the use of staggered boards and granting shareholders the right to nominate directors and propose changes to governance arrangements in the corporate charter. [source] Eliminating recency with self-review: the case of auditors' ,going concern' judgmentsJOURNAL OF BEHAVIORAL DECISION MAKING, Issue 3 2002Robert H. Ashton Abstract This paper examines the use of self-review to debias recency. Recency is found in the ,going concern' judgments of staff auditors, but is successfully eliminated by the auditor's use of a simple self-review technique that would be extremely easy to implement in audit practice. Auditors who self-review are also less inclined to make audit report choices that are inconsistent with their going concern judgments. These results are important because the judgments of staff auditors often determine the type and extent of documentation in audit workpapers and serve as preliminary inputs for senior auditors' judgments and choices. If staff auditors' judgments are affected by recency, the impact of this bias may be impounded in the ultimate judgments and choices of senior auditors. Since biased judgments can expose auditors to significant costs involving extended audit procedures, legal liability and diminished reputation, simple debiasing techniques that reduce this exposure are valuable. The paper also explores some future research needs and other important issues concerning judgment debiasing in applied professional settings. Copyright © 2002 John Wiley & Sons, Ltd. [source] The impact of privatization and regulation on the water and sewerage industry in England and Wales: a translog cost function modelMANAGERIAL AND DECISION ECONOMICS, Issue 6 2000David S Saal After the ten Regional Water Authorities (RWAs) of England and Wales were privatized in November 1989, the successor Water and Sewerage Companies (WASCs) faced a new regulatory regime that was designed to promote economic efficiency while simultaneously improving drinking water and environmental quality. As legally mandated quality improvements necessitated a costly capital investment programme, the industry's economic regulator, the Office of Water Services (Ofwat), implemented a retail price index (RPI)+K pricing system, which was designed to compensate the WASCs for their capital investment programme while also encouraging gains in economic efficiency. In order to analyse jointly the impact of privatization, as well as the impact of increasingly stringent economic and environmental regulation on the WASCs' economic performance, this paper estimates a translog multiple output cost function model for the period 1985,1999. Given the significant costs associated with water quality improvements, the model is augmented to include the impact of drinking water quality and environmental quality on total costs. The model is then employed to determine the extent of scale and scope economies in the water and sewerage industry, as well as the impact of privatization and economic regulation on economic efficiency. Copyright © 2000 John Wiley & Sons, Ltd. [source] Implementing Evaluation of the Measurement Process in an Automotive Manufacturer: a Case StudyQUALITY AND RELIABILITY ENGINEERING INTERNATIONAL, Issue 5 2003Graeme Knowles Abstract Reducing process variability is presently an area of much interest in manufacturing organizations. Programmes such as Six Sigma robustly link the financial performance of the organization to the degree of variability present in the processes and products of the organization. Data, and hence measurement processes, play an important part in driving such programmes and in making key manufacturing decisions. In many organizations, however, little thought is given to the quality of the data generated by such measurement processes. By using potentially flawed data in making fundamental manufacturing decisions, the quality of the decision-making process is undermined and, potentially, significant costs are incurred. Research in this area is sparse and has concentrated on the technicalities of the methodologies available to assess measurement process capability. Little work has been done on how to operationalize such activities to give maximum benefit. From the perspective of one automotive company, this paper briefly reviews the approaches presently available to assess the quality of data and develops a practical approach, which is based on an existing technical methodology and incorporates simple continuous improvement tools within a framework which facilitates appropriate improvement actions for each process assessed. A case study demonstrates the framework and shows it to be sound, generalizable and highly supportive of continuous improvement goals. Copyright © 2003 John Wiley & Sons, Ltd. [source] Key biodiversity areas as globally significant target sites for the conservation of marine biological diversityAQUATIC CONSERVATION: MARINE AND FRESHWATER ECOSYSTEMS, Issue 6 2008Graham J. Edgar Abstract 1.Recent approaches to the planning of marine protected area (MPA) networks for biodiversity conservation often stress the need for a representative coverage of habitat types while aiming to minimize impacts on resource users. As typified by planning for the Australian South-east Marine Region, this strategy can be manipulated by political processes, with consequent biased siting of MPAs. Networks thus created frequently possess relatively low value for biodiversity conservation, despite significant costs in establishment and maintenance. 2.Such biases can be minimized through application of the data-driven and species-based concept of key biodiversity areas (KBAs). 3.By mapping locations of threatened species and populations that are highly aggregated in time or space, the KBA process allows marine sites of global biodiversity significance to be systematically identified as priority conservation targets. Here, the value of KBAs for marine conservation planning is outlined, and guidelines and provisional criteria for their application provided. Copyright © 2008 John Wiley & Sons, Ltd. [source] Short-term fitness benefits of physiological integration in the clonal herb Hydrocotyle peduncularisAUSTRAL ECOLOGY, Issue 6 2002Andrew G. Peterson Abstract We test whether physiological integration enhances the short-term fitness of the clonal herb Hydrocotyle peduncularis (Apiaceae, R. Brown ex A. Richards) subjected to spatial variation in water availability. Our measures of fitness and costs and benefits are based on the relative growth rate of fragmented genets. Physiological integration over a gradient in soil moisture resulted in a highly significant net benefit to genet growth of 0.015 g g,1 day,1. This net benefit represents a significant enhancement of the average fitness of fragmented genets spanning the moisture gradient relative to the average of those growing in homogeneous moist or dry conditions. Sections of genet fragments growing in dry conditions in spatially heterogeneous treatments had significantly higher growth than the sections they were connected to that were growing in moist conditions. Within fragments, older (parent) sections growing in moist conditions experienced significant costs from connection to younger (offspring) sections growing in dry conditions. In contrast, offspring sections with ample water did not experience any costs when connected to parent sections growing in dry conditions. However, the net benefit of physiological integration was similar for parent and offspring sections, suggesting that parent and offspring sections contributed equally to the net benefit of physiological integration to genet growth and short-term fitness. [source] |