VALUING WATER QUALITY MONITORING: A CONTINGENT VALUATION EXPERIMENT INVOLVING HYPOTHETICAL AND REAL PAYMENTS

This paper studies the preferences and willingness-to-pay for individuals for volunteer water quality monitoring programs. The study involves supporting water quality monitoring at two ponds in the state of Rhode Island. The paper uses both a hypothetical and a real-payment contingent valuation survey to directly measure individual preferences and willingness-to-pay (WTP) for volunteer water quality monitoring at the two ponds. The overall results of the study suggest that hypothetical WTP is not statistically greater than real WTP, and that the average survey respondent is willing to support water quality monitoring on one of the two ponds. The study also finds that the specified purpose of water quality monitoring and certain socioeconomic characteristics of a respondent significantly affect the respondent's decision to support volunteer water quality monitoring.Environmental Economics and Policy,

Policing Diversity: Lessons from Lambeth

This report describes a local initiative, Policing Diversity in Lambeth (PDL), which was developed to address the challenges of policing a highly ethnically diverse population. The report is timely. The report of the Macpherson Inquiry into the death of Stephen Lawrence has substantially redrawn the policy landscape in relation to policing and race issues. The Home Secretary’s priorities for policing in 2000-1 emphasise the need for improved community relations. The follow-up report by Her Majesty’s Inspectorate of Constabulary, ‘Winning the Race Revisited’, further stressed the need for urgent action. Parallel with these developments, the 1998 Crime and Disorder Act imposed a duty on police and local authorities to work to reduce crime in partnerships with local communities, and to engage more fully in consultation with local communities. The report provides a snapshot of PDL at a particular stage in its development, and this report may seem of historical interest only. However, the analysis of underlying relations between the police and the community will have wider applicability for both the police and crime and disorder partnerships, as do the lessons that can be drawn from PDL’s first year

Long-term effects of adolescent stress on neophobic behaviors in zebra finches are modulated by social context when in adulthood

Funding was provided by a BBSRC Research Fellowship to KAS and a University of St Andrews postgraduate scholarship to MGE.Experiencing stress during adolescence can increase neophobic behaviors in adulthood, but most tests have been conducted in the absence of conspecifics. Conspecifics can modulate responses to stressors, for example by acting as ‘social buffers’ to attenuate the aversive appraisal of stressors. Here, we investigate the long-term effects of adolescent stress on the behavioral responses to novel stimuli (a mild stressor) across social contexts in an affiliative passerine bird, the zebra finch. During early (days 40–60) or late (days 65–85) adolescence the birds (n = 66) were dosed with either saline or the hormone corticosterone (CORT). CORT was given in order to mimic a physiological stress response and saline was given as a control. In adulthood, the birds' behavioral responses to a novel environment were recorded in both the presence and absence of conspecifics. An acute CORT response was also quantified in adolescence and adulthood. Our findings show clear evidence of social context mediating any long-term effects of adolescent stress. In the presence of familiar conspecifics no treatment effects were detected. Individually, birds dosed with CORT in early adolescence were slower to enter a novel environment, spent more time perching in the same novel environment, and, if female, engaged in more risk assessment. Birds dosed in late adolescence were unaffected. No treatment effects were detected on CORT, but adolescents had a higher CORT concentration than adults. Our results are the first to suggest that familiar conspecifics in adulthood can buffer the long-term effects of stress that occurred during early adolescence.Publisher PDFPeer reviewe

Culture and rapport promotion in service encounters: protecting the ties that bind

The present study aimed at investigating possible cultural effects on the perceived importance of interactional concerns in service encounters. Individual values were examined to establish an explanatory framework for any effects that might emerge. Hong Kong Chinese and Filipinos participated in the present study by rating the importance of 12 interactional concerns in five hypothetical scenarios involving service provision. “Rapport promotion” was the only consistent factor of interactional concerns to emerge from the five scenarios in each of the two cultural groups. The dimensions of individual values, labeled “Conservation” and “Self-Transcendence” by Schwartz (1992), significantly predicted a respondent’s level of rapport promotion across all scenarios, with self-transcendence partially unpackaging the cultural difference that emerged in one of the service scenarios. We use these results to support a model of communication in service provision that predicts communication concerns as arising from cultural socialization for personal characteristics and situational features of the encounter, leading to the petitioner’s being more dependent on the good will of the service provider

Evolution in Natural Area Monitoring at Indianapolis Parks

The Indianapolis Land Stewardship (ILS) team’s first restoration was in 1992 with high school students planting acorns in a 13-acre field. Since then, managed acreage has increased to nearly 1,900 acres across 37 parks. ILS’ monitoring has evolved to meet the challenges of an expanding program. This is accomplished through improved GIS tracking and mapping techniques. Additionally, scientific survey work has broadened from initially a few vegetation surveys to now include longer-duration studies and other taxa for a more balanced and complete assessment

Gr\"obner Bases and Nullstellens\"atze for Graph-Coloring Ideals

We revisit a well-known family of polynomial ideals encoding the problem of graph-$k$-colorability. Our paper describes how the inherent combinatorial structure of the ideals implies several interesting algebraic properties. Specifically, we provide lower bounds on the difficulty of computing Gr\"obner bases and Nullstellensatz certificates for the coloring ideals of general graphs. For chordal graphs, however, we explicitly describe a Gr\"obner basis for the coloring ideal, and provide a polynomial-time algorithm.Comment: 16 page

Multi-color pyrometer for materials processing in space

The design, construction and calibration of a computer-linked multicolor pyrometer is described. The device was constructed for ready adaptation to a spacecraft and for use in the control of thermal processes for manufacturing materials in space. The pyrometer actually uses only one color at a time, and is relatively insensitive to uncertainties in the heated object's emissivity because the product of the color and the temperature has been selected to be within a regime where the radiant energy emitted from the body increases very rapidly with temperature. The instrument was calibrated and shown to exceed its design goal of temperature measurements between 300 and 2000 C, and its accuracy in the face of imprecise knowledge of the hot object's emissivity was demonstrated