Development of a Web-based software tool for predicting the occurrence and effect of air pollutants inside museum buildings

22-27 September 200

Inentives and Education: Experimental Evidence from Medellin, Colombia

This research uses an experimental design to investigate how incentive structure influences goal achievement among disadvantaged high school students in Medellin, Colombia. Of particular interest is how treatment effects influence school performance as well as how this may vary with differing key characteristics of the participants. Medellin, Colombia, like much of South America suffers from high levels of inequality in the city proper. Improving educational outcomes in impoverished neighborhoods is essential for the growth of these neighborhoods and the greater community in which they are located. The model used in this experiment is inspired by the Family Independence Initiative (FII). This research finds that conditional incentives in particular play a significant role in determining the achievement of objectives and that those participants in the conditional incentive treatment tend to perform better after the conclusion of the experiment

The combined honours student experience survey data and the perceptions of staff and students

Data analysis from the University Student Survey (2016) at Canterbury Christ Church University revealed that combined honours students (n=780) were less satisfied than single honours students. The qualitative comments of the students referred to concerns about identifying with and belonging to the programme; and self confidence. In addition, on one programme (n=89), combined honours student were less satisfied than their single honours classmates on 18 of the 22 USS satisfaction measure statements. Three focus group with staff on this programme (n=18) and interviews with students (n=8) were undertaken to investigate the issues of lack of satisfaction further. This paper will report on the ongoing investigation and the potential development of learning and teaching interventions

Alternative Information Sources and Information Asymmetry Reduction: Evidence From Small Business Debt

We examine whether more sophisticated accounting methods (in the form of accrual accounting) interact with other information sources to reduce information asymmetries between small business borrowers and lenders, thereby lowering borrowers׳ probability of loan denial and cost of debt. We find that higher third party credit scores, but not the use of accrual accounting, decrease the likelihood of loan denial. However, firms using accrual accounting exhibit statistically lower interest rates after controlling for many factors associated with the cost of debt. Further, the interest rate benefits from accrual accounting are greatest when the borrower׳s credit score is low and/or the length of its banking relationship with the lender is short. This evidence indicates that accrual accounting can benefit small business borrowers, but that the information contained in third-party credit scores and obtained through ongoing banking relationships can substitute for the incremental information provided by accrual accounting

Impact of variable air-sea O2 and CO2 fluxes on atmospheric potential oxygen (APO) and land-ocean carbon sink partitioning

© 2008 Author(s). This article is distributed under the terms of the Creative Commons Attribution 3.0 License. The definitive version was published in Biogeosciences 5 (2008): 875-899, doi:10.5194/bg-5-875-2008A three dimensional, time-evolving field of atmospheric potential oxygen (APO ~O2/N2+CO2) was estimated using surface O2, N2 and CO2 fluxes from the WHOI ocean ecosystem model to force the MATCH atmospheric transport model. Land and fossil carbon fluxes were also run in MATCH and translated into O2 tracers using assumed O2:CO2 stoichiometries. The modeled seasonal cycles in APO agree well with the observed cycles at 13 global monitoring stations, with agreement helped by including oceanic CO2 in the APO calculation. The modeled latitudinal gradient in APO is strongly influenced by seasonal rectifier effects in atmospheric transport. An analysis of the APO-vs.-CO2 mass-balance method for partitioning land and ocean carbon sinks was performed in the controlled context of the MATCH simulation, in which the true surface carbon and oxygen fluxes were known exactly. This analysis suggests uncertainty of up to ±0.2 PgC in the inferred sinks due to variability associated with sparse atmospheric sampling. It also shows that interannual variability in oceanic O2 fluxes can cause large errors in the sink partitioning when the method is applied over short timescales. However, when decadal or longer averages are used, the variability in the oceanic O2 flux is relatively small, allowing carbon sinks to be partitioned to within a standard deviation of 0.1 Pg C/yr of the true values, provided one has an accurate estimate of long-term mean O2 outgassing.We acknowledge the support of NASA grant NNG05GG30G and NSF grant ATM0628472