Determining Market Perceptions on Contamination of Residential Property Buyers using Contingent Valuation Surveys

This study reports on the results of several residential contingent valuation (CV) studies conducted throughout the US. Over the past several years CV has often been used to illustrate potential residential buyer bid prices for contaminated real property. The data set for this study contains 1,115 telephone interviews and examines the consistency of the results for residential property affected by a Leaking Underground Storage Tank (LUST) in different markets in eight states, controlling for income, age, education, local market type, and other demographic factors. Negative discounts associated with a LUST for marginal bidders in the top half of the market were quite consistent across states, varying from ?25% to ?33%, with an average of ?31%,. Using ANOVA indicates that bidding patterns from six of the seven states were statistically similar. Male bidders, those over 40 years of age and those with no high school degree were more likely to bid, while those with higher incomes and those bidding on certain, rather than suspected contamination, were less likely to bid. Local market type did not appear to affect bid outcomes. Using the marginal bidder approach, the CV results benchmark reasonably closely to, but still higher than, revealed preference outcomes for residential LUST sites in Ohio.

Hungry for change: the Sydney Food Fairness Alliance

The Sydney Food Fairness Alliance is one of a growing number of nascent food movements in Australia to have emerged out of concern for the country’s food future, as well as the deleterious effect the present food system is having on its citizens’ health and the continent’s fragile environment. The Alliance’s structure and activities clearly position it as a new social movement (NSM) engaged in collective action on a specific issue, in this instance, food security/justice, and operating outside the political sphere while aiming to influence and affect societal change. Food security as a human right lies at the heart of the Alliance’s philosophy, and equitable, sustainable food policies for New South Wales are a core focus of its advocacy work. The authors argue that the Alliance is a distinctive food movement in that it positions itself as an \u27umbrella\u27 organization representing a wide range of stakeholders in the food system. This chapter reflects on the values, achievements, issues of concern, strengths and weaknesses, and future of the Sydney Food Fairness Alliance. This resource is Chapter 8 in \u27Food Security in Australia: Challenges and Prospects for the Future\u27 published by Springer in 2013

Leveraging Students’ Game Culture in Education: Validating the benefits of utilising videogames to inform pedagogy

Checkpoint | Brunel University London . September 2023 Research Paper. All images used in this publication are for illustrative purposes only and do not represent the students involved in the study ©monkeybusinessimages, iStock: ©SeventyFour, iStock.A blog post about the pilot, Videogames + Education: A Powerful Synergy for the Future of Learning by Tamer Asfahani, April 20, 2023, is available online at: https://checkpointmagazine.com/videogames-education-a-powerful-synergy-for-the-future-of-learning/ .Research Objectives: The overall challenge this research responds to is the need to increase all children’s engagement with education. One solution (among many) is to work through a game-based lesson content approach, as exemplified by Checkpoint Learning Materials (CLM). The aim of this research was to evaluate the ‘engagement value-add’ of CLM which, in turn, will enable greater outreach to schools of the Checkpoint materials. The sub-challenge is to work with Checkpoint to evidence the effectiveness of their Video Game culture-based learning materials, as outlined by their in-house pedagogy, in ways to support the National Curriculum in key stage 2 (years 3-6). The project will allow Checkpoint to further develop and market their learning materials to publishers and education providers. The aim is to validate Checkpoint’s pedagogy and lesson plans. It will enable Checkpoint to help design school CPD for training primary school teachers

An Allosteric Inhibitor of KRas Identified Using a Barcoded Rapid Assay Microchip Platform

Protein catalyzed capture agents (PCCs) are synthetic antibody surrogates that can target a wide variety of biologically relevant proteins. As a step toward developing a high-throughput PCC pipeline, we report on the preparation of a barcoded rapid assay platform for the analysis of hits from PCC library screens. The platform is constructed by first surface patterning a micrometer scale barcode composed of orthogonal ssDNA strands onto a glass slide. The slide is then partitioned into microwells, each of which contains multiple copies of the full barcode. Biotinylated candidate PCCs from a click screen are assembled onto the barcode stripes using a complementary ssDNA-encoded cysteine-modified streptavidin library. This platform was employed to evaluate candidate PCC ligands identified from an epitope targeted in situ click screen against the two conserved allosteric switch regions of the Kirsten rat sarcoma (KRas) protein. A single microchip was utilized for the simultaneous evaluation of 15 PCC candidate fractions under more than a dozen different assay conditions. The platform also permitted more than a 10-fold savings in time and a more than 100-fold reduction in biological and chemical reagents relative to traditional multiwell plate assays. The best ligand was shown to exhibit an in vitro inhibition constant (IC_(50)) of ∼24 μM

Negotiating networks of self-employed work: strategies of minority ethnic contractors

Within the increased flexible, contracted work in cities, employment is negotiated through network arrangements characterised by multiplicity, mobility and fluidity. For black and minority ethnic group members, this network labour becomes fraught as they negotiate both their own communities, which can be complex systems of conflicting networks, as well as non-BME networks which can be exclusionary. This discussion explores the networking experiences of BME individuals who are self-employed in portfolio work arrangements in Canada. The analysis draws from a theoretical frame of ‘racialisation’ (Mirchandani and Chan, 2007) to examine the social processes of continually constructing and positioning the Other as well as the self through representations in these networks. These positions and concomitant identities enroll BME workers in particular modes of social production, which order their roles and movement in the changing dynamics of material production in networked employment

Molecular layer-by-layer re-stacking of MoS2–In2Se3 by electrostatic means: assembly of a new layered photocatalyst

2D-layered transition metal chalcogenides are useful semiconductors for a wide range of opto-electronic applications. Their similarity as layered structures offers exciting possibility to modify their electronic properties by creating new heterojunction assemblies from layer-by-layer restacking of individual monolayer sheets, however, the lack of specific interaction between these layers could induce phase segregation. Here, we employed a chemical method using n-BuLi to exfoliate MoS2 and In2Se3 into their monolayer-containing colloids in solution. The bulky Se atoms can be selectively leached from In2Se3 during Li treatment which gives positively charged surface monolayers in neutral pH whereas the strong polarization of Mo–S with moderate S leaching gives a negatively charged surface. Specific interlayer electrostatic attraction during their selective assembly gives a controllable atomic AB-type of layer stacking as supported by EXAFS, STEM with super-EDX mapping, TAS/TRPL and DFT calculations. Using this simple but inexpensive bottom-up solution method, a new photocatalyst assembled from layers for photo water splitting can be tailor-made with high activity

Robust Inference of Monocot Deep Phylogeny Using an Expanded Multigene Plastid Data Set

We use multiple photosynthetic, chlororespiratory, and plastid translation apparatus loci and their associated noncoding regions (ca. 16 kb per taxon, prior to alignment) to make strongly supported inferences of the deep internal branches of monocot phylogeny. Most monocot relationships are robust (an average of ca. 91 % bootstrap support per branch examined), including those poorly supported or unresolved in other studies. Our data strongly support a sister-group relationship between Asparagales and the commelinid monocots, the inclusion of the orchids in Asparagales, and the status of Petrosaviaceae as the sister group of all monocots except Acorus and Alismatales. The latter finding supports recognition of the order Petrosaviales. Also strongly supported is a placement of Petermannia disjunct from Colchicaceae (Liliales) and a sister-group relationship between Commelinales and Zingiberales. We highlight the remaining weak areas of monocot phylogeny, including the positions of Dioscoreales, Liliales, and Pandanales. Despite substantial variation in the overall rate of molecular evolution among lineages, inferred amounts of change among codon-position data partitions are correlated with each other across the monocot tree, consistent with low incongruence between these partitions. Ceratophyllum and Chloranthaceae appear to have a destabilizing effect on the position of the monocots among other angiosperms; the issue of monocot placement in broader angiosperm phylogeny remains problematic