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Useful Contribution (useful + contribution)
Selected AbstractsTreatment of PCB-contaminated soils: I. Evaluation of in situ reductive dechlorination of PCBsENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY, Issue 2 2001Robert C. Ahlert PhD PE Soil samples were obtained from a site contaminated with PCBs. PCB contamination is not uniform at the source of the samples. Some may be present as isolated "hot spots." The anaerobic phase of a two-stage bioremediation process was evaluated. Populations of native organisms were very low. Species capable of dechlorination of PCBs did not proliferate under anaerobic conditions in the laboratory. Reductive dechlorination did not occur. In-situ reductive dechlorination of heavily substituted PCB congeners is not likely to make a useful contribution to elimination at the site represented by the soil samples. [source] Spinoza on the Problem of AkrasiaEUROPEAN JOURNAL OF PHILOSOPHY, Issue 1 2010Eugene Marshall Though each is intuitive in a certain way, they both fail as explanations of the most interesting cases of akrasia. Spinoza's own thoughts on bondage and the affects follow, from which a Spinozist explanation of akrasia is constructed. This account is based in Spinoza's mechanistic psychology of cognitive affects. Because Spinoza's account explains action asissuing from modes of mind that are both cognitive and affective, it captures the intuitions that motivate the two traditional views while avoiding the pitfalls that result from their one-sided approaches. This project will allow us a fuller understanding of Spinozist moral psychology. In addition to this historical value, the Spinozist theory may offer a satisfactory explanation of certain hard cases of akrasia while avoiding the problems be set by other theories. For this reason, the Spinozist account could also be seen as a useful contribution to our philosophical understanding of the phenomenon of akrasia. [source] Performance measurement: a critical analysis of the literature with respect to total quality managementINTERNATIONAL JOURNAL OF MANAGEMENT REVIEWS, Issue 2 2000David Sinclair This paper represents a comprehensive review of the literature on performance measurement. The roadmap used for this analysis is from the evolution of performance measurement, to the way it is currently defined and how it is applied from a corporate-wide perspective. One useful contribution of this review is a special focus on performance measurement in a non-financial, non-traditional sense. This discussion was further amplified by referring to newly developed tools and techniques and by highlighting critical factors of success in the application of performance measurement. The key factors from this literature review reveal that, although interest in the area of measurement is growing significantly, this is not reflected by the tangible and credible experiences in the organizations concerned. There is a concurrent view amongst various writers that there are both hard and soft issues reflecting, for instance, the lack of strategic thinking and goal clarity, putting measurement systems in the driving seat and therefore trusting unreliable designs and not focusing on the true ethos of modern measurement towards continuous improvement and thereby not engaging employees and neglecting the culture change aspects. The paper concludes by highlighting the dearth in research in the important field of performance measurement and, in particular, the design and implementation of performance measurement systems that cover all the essential aspects through an integrated perspective. [source] Containing "Contamination": Cardinal Moran and Fin de Siècle Australian National Identity, 1888,1911JOURNAL OF RELIGIOUS HISTORY, Issue 1 2010MARK HEARN Cardinal Patrick Moran, the Catholic Archbishop of Sydney 1884,1911, believed that Australian Catholicism would flourish with the emergence of the new nation through Federation in 1901, provided that Australians turned away from foreign influences, including anarchism and nihilism. Moran also sought to use Australia to "Christianise" the enormous population of China, and believed that Chinese immigration could make a useful contribution to nation building. As the nineteenth century closed, Moran's aims were also complicated by the more insidious threats represented by a challenge to religious faith by fin de siècle ideas , a modernism manifesting as both a general challenge and a specific doctrinal relativism that might erode the Church's authority, and the threat Moran felt was posed to the development of the liberal Australian state and the Catholic Church by radical political alternatives. Concern that a mood of religious apostasy and secularisation might spread to the Catholic community also influenced Moran's support for the fledgling Australian Labor Party, which Moran believed could develop as an instrument to reinforce a moral and inclusive sense of Australian identity for the Catholic working class. Like his pro-Chinese views, Moran's advocacy of "the rights and duties of labour" was defined by an imagined alliance of evangelism and nation building, stimulated by the fear, as he expressed in 1891, of "an unchristianized world." [source] WICKED WATER PROBLEMS: SOCIOLOGY AND LOCAL WATER ORGANIZATIONS IN ADDRESSING WATER RESOURCES POLICY,JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION, Issue 3 2000David M. Freeman ABSTRACT: Water policy problems are wicked, not in an ethically deplorable sense, but in the sense that they present us with especially difficult challenges of becoming more effective in our interdisciplinary collaboration, of integrating two very different types of knowledge, of working across several socio-political units of analysis simultaneously, and of better organizing water as a common property resource. Sociology, as a discipline, does not have a particularly rich history of successful interdisciplinary collaboration on water resources research and teaching, but it potentially has a most useful contribution to make by focusing on the analysis of local common property resource organizations that operate in the interface between individual resource users and State-Federal entities. These organizations (e.g., water user associations, mutual companies, irrigation districts, acequias, conservancy districts) have been the orphans of water policy discourse but their operations are critical to undertaking more effective 21st century social analysis, research work, and action programs. Sociologists who work to better comprehend the operations of, and constraints upon, these organizations build a sociology that can better collaborate with other water-related disciplines in addressing the challenges posed by the wickedness of our water problems. [source] Lipid dynamics in the viperine snake, Natrix maura, from the Ebro Delta (NE Spain)OIKOS, Issue 1 2004Xavier Santos Body reserves play a major role in several aspects of vertebrate biology. Accurate identification and quantification of body reserves constitute a useful contribution to the better understanding of the energetic costs of reproduction and the implication of food availability in life history traits of organisms. In this study, lipid content in fat bodies, liver and muscle of the viperine snake (Natrix maura) were measured along an active season. Samples were collected monthly from a natural population of the Ebro Delta Natural Park (NE Spain). This methodology pointed out that lipids stored in fat bodies were the main energetic source during reproduction. In addition, lipids stored in liver appeared to be critical for vitellogenesis, while lipids stored in muscle turned out to be a supplementary energetic resource to fuel reproductive effort. Relationships between changes in body reserves and prey availability in canals of the Ebro Delta were also considered. In males, lipid reserves presented a positive correlation with food availability. On the contrary, lipid reserves in female viperine snakes decreased during vitellogenesis even though food availability increased in this period, which suggests a quick transfer of body lipids to clutch. In April, when rice fields of the Ebro Delta were dry and aquatic prey was scarce for viperine snakes, males and females presented a lower lipid content in fat bodies, liver and muscle than they did in other months, showing a clear link between prey availability and body reserves during food shortage. Thus, patterns of variation in fat levels indicated that Natrix maura is a capital breeder since it acquires resources in advance and stores them until they are invested during the reproductive period. Nevertheless, the shortage in April forces Natrix maura to turn into a facultative income breeder to fuel vitellogenesis. Finally, fat reserves in body components were compared with an estimate of body condition calculated by the residuals from the regression of body mass on body length. In male viperine snakes, the estimate of body condition was correlated with fat levels, revealing that this index is useful to measure condition in living individuals. On the contrary, body condition in females was not correlated with fat levels, which suggests that it is not appropriate to infer condition in female viperine snakes since it depends on the reproductive status of the individuals. [source] The prevalence of suppression in amblyopic individualsOPHTHALMIC AND PHYSIOLOGICAL OPTICS, Issue 1 2008Brendan Barrett Purpose:, A popular view of visual functioning in individuals with amblyopia is that the weaker eye is suppressed in key regions of the binocular visual field. Indeed, some have argued that chronic interocular suppression may represent the cause of amblyopia. Here we evaluate the prevalence of amblyopic-eye suppression in a simple light detection task when the eyes are open, minimally dissociated and in their habitual motor position. Methods:, A custom program on the Humphrey Field Analyzer (Carl Zeiss Meditec Inc., Dublin, CA, USA) was used to measure detection thresholds for a blue light on a yellow background along the horizontal meridian at two-degree intervals to an eccentricity of 25 degrees on either side of the fixation mark. The fellow eye was prevented from seeing the target using three different methods: (1) full-occlusion (i.e. no light entered the fellow eye), (2) a translucent occluder (3) a yellow filter in front of the fellow eye. In (3), the yellow filter only prevented the fellow eye from seeing the blue stimulus; the fixation mark and the background remained visible (minimal-dissociation condition). Fourteen amblyopes participated in the study, of whom 11 had strabismus. Results:, Three basic patterns of results were observed. (1) Only three of the fourteen participants (,21%) showed evidence of suppression, where amblyopic-eye sensitivity was lower with the fellow eye open. In these cases, the retinal locations that showed greatest suppression corresponded to the direction and angle of the strabismus. (2) Three participants (,21%) showed the opposite effect to the result in (1); i.e. amblyopic-eye sensitivity was greatest when the fellow was open with minimal dissociation between the eyes. One possible explanation is that the dominance of the fellow eye caused this reduction. (3) Seven participants (50%) exhibited patterns of amblyopic sensitivity that did not depend upon the occlusion status of the fellow eye. The results for one participant did not fit into any of the above patterns. Conclusions:, Suppression appears not to be a universal feature of central amblyopic vision. Our results for this simple detection task suggest that suppression may exist in as few as 20% of amblyopes. These results present a challenge to the view that suppression represents a root cause of amblyopia but they are consistent with the view that the amblyopic eye makes a useful contribution under habitual viewing conditions. [source] Why a universal population-level approach to the prevention of child abuse is essentialCHILD ABUSE REVIEW, Issue 3 2003Matthew R. Sanders Abstract This paper argues for the importance of adopting a population-level approach to promote more effective parenting and to reduce the risk of child maltreatment. Family-based interventions based on social learning principles have been shown to make a useful contribution in the treatment of child maltreatment. However, typically such programmes have been used to treat parents who have already become involved in the child protection system. We argue that the creation of community-wide support structures to support positive parenting is needed to reduce the prevalence of child maltreatment. Such an approach requires several criteria to be met. These include having knowledge about the prevalence rates for the targeted child outcomes sought, knowledge about the prevalence of various parenting and family risk factors, evidence that changing family risk factors reduces the prevalence of targeted problems, having culturally appropriate, cost-effective, evidence-based interventions available and making these widely accessible. Copyright © 2003 John Wiley & Sons, Ltd. [source] Assessing the Risks Presented by ParentsCHILD AND ADOLESCENT MENTAL HEALTH, Issue 3 2001Ian Partridge The establishment, operation and theoretical basis of a multi-disciplinary, Tier 3, risk assessment team based in a Child and Adolescent Mental Health Service (CAMHS) is described. The work is based on the premise that a multi-disciplinary team, with a degree of statutory independence, assessing forensic issues within a systemic and developmental context, offers a useful contribution to the comprehensive assessment of risk and provides a valuable and valued service to statutory agencies and the courts. The team is used by Social Services Departments and the courts as an independent assessor of the risk parents and potential carers pose to children. An evaluation of 39 referrals, carried out over the last 3 years of operation of the parenting risk assessment team, is given. [source] Public-service values and ethics: Dead end or strong foundation?CANADIAN PUBLIC ADMINISTRATION/ADMINISTRATION PUBLIQUE DU CANADA, Issue 4 2007Ralph Heintzman This article reconsiders Langford's arguments. It suggests that public-service renewal requires ongoing attention to public-service values but also a widening of perspectives. It is now necessary to give more attention to the organizational, professional and institutional conditions for sound individual behaviour. Renewed attention to public-service values did not seek to supplant traditional approaches to individual decision-making but rather to re-frame them, grounded in the principles without which they cannot make sense of the world. The research literature on values and ethics contradicts the critique's main contentions. The critique is also based on a mistaken premise, false dichotomies, and inadequate and contradictory assumptions about the nature of individual decision-making. Three points that are useful contributions to the ongoing dialogue on public-service values and ethics are noted. But an individual perspective must now be augmented by a focus on organizational performance. Far from being a "dead end," public-service values remain the strong foundation , the only possible foundation , for the public service of the future. Sommaire: Le présent article réexamine celui de John Langford, publié dans le numéro d'hiver 2004, dans lequel il prononqait un verdict négatif sur la préoccupation au sujet des valeurs du service public qui a été un élément de la réforme de la fonction publique au cours de la dernière décennie. Une nouvelle attention portée aux valeurs du service public n'a pas cherchéà remplacer les approches traditionnelles concernant la prise de décisions, mais plutôt à les recadrer, à les faire reposer sur des principes sans lesquels le monde n'a pas de sens. La littérature de recherche sur les valeurs et l'éthique conrredit les principales allégations du critique et est également fondée sur des assomptions erronées et contradictoires au sujet de la nature de la prise de décision individuelle. Trois points qui représentent des contributions utiles au dialogue actuel sur les valeurs et l'éthique du service public sont mentionnés. Mais la perspective individuelle doit aussi avoir pour objectif la performance organisarionnelle. Loin d'être une « voie sans issue », les valeurs du service public restent le fondement solide , et en fait le seul fondement possible , du service public de l'avenir. [source] Can Metal,Organic Framework Materials Play a Useful Role in Large-Scale Carbon Dioxide Separations?CHEMSUSCHEM CHEMISTRY AND SUSTAINABILITY, ENERGY & MATERIALS, Issue 8 2010Seda Keskin Dr. Abstract Metal,organic frameworks (MOFs) are a fascinating class of crystalline nanoporous materials that can be synthesized with a diverse range of pore dimensions, topologies, and chemical functionality. As with other well-known nanoporous materials, such as activated carbon and zeolites, MOFs have potential uses in a range of chemical separation applications because of the possibility of selective adsorption and diffusion of molecules in their pores. We review the current state of knowledge surrounding the possibility of using MOFs in large-scale carbon dioxide separations. There are reasons to be optimistic that MOFs may make useful contributions to this important problem, but there are several critical issues for which only very limited information is available. By identifying these issues, we provide what we hope is a path forward to definitively answering the question posed in our title. [source] | ||||||||||||||||