X-ray diffraction studies of shocked lunar analogs

The X-ray diffraction experiments on shocked rock and mineral analogs of particular significance to lunar geology are described. Materials naturally shocked by meteorite impact, nuclear-shocked, or artificially shocked in a flat plate accelerator were utilized. Four areas were outlined for investigation: powder diffractometer studies of shocked single crystal silicate minerals (quartz, orthoclase, oligoclase, pyroxene), powder diffractometer studies of shocked polycrystalline monomineralic samples (dunite), Debye-Scherrer studies of single grains of shocked granodiorite, and powder diffractometer studies of shocked whole rock samples. Quantitative interpretation of peak shock pressures experienced by materials found in lunar or terrestrial impact structures is presented

The impact of gambling advertising: Problem gamblers report stronger impacts on involvement, knowledge, and awareness than recreational gamblers.

Although there is a general lack of empirical evidence that advertising influences gambling participation, the regulation of gambling advertising is hotly debated among academic researchers, treatment specialists, lobby groups, regulators, and policy makers. This study contributes to the ongoing debate by investigating perceived impacts of gambling advertising in a sample of gamblers drawn from the general population in Norway (n = 6,034). Three dimensions of advertising impacts were identified, representing perceived impacts on (a) gambling-related attitudes, interest, and behavior (‘Involvement’), (b) knowledge about gambling options and providers (‘Knowledge’), and (c) the degree to which people are aware of gambling advertising (‘Awareness’). Overall, impacts were strongest for the ‘Knowledge’ dimension, and, for all three dimensions, the impact increased with level of advertising exposure. Those identified as problem gamblers in the sample (n = 57) reported advertising impacts concerning ‘Involvement’ more than recreational gamblers, and this finding was not attributable to differences in advertising exposure. Additionally, younger gamblers reported stronger impacts on ‘Involvement’ and ‘Knowledge’ but were less likely to agree that they were aware of gambling advertising than older gamblers. Male gamblers were more likely than female gamblers to report stronger impacts on both ‘Involvement’ and ‘Knowledge’. These findings are discussed with regard to existing research on gambling advertising as well as their implications for future research and policy-making

Expectation of others' cooperation, efficacy beliefs, and willingness to sacrifice personal interests for the environment

This paper departs from the view that the social dilemma literature provides a useful framework to delineate possible barriers to the adoption of environmentally friendly lifestyles. One domain in which tensions between personal and collective interests might occur are travel decisions in the context of tourism, where it has been shown that even those people who are very committed to environmental practices at home tend to reduce respective commitments on vacation. Data from a cross-sectional survey N = 771 were analyzed to investigate if the expectation that other tourists travel environmentally friendly can in part explain individual travel decisions with environmental implications. Results showed that this expectation of others' cooperation added explanatory value in willingness to sacrifice (personal interests) for the environment. Further analyses indicated that the relationship between expectation of others' cooperation and willingness to sacrifice for the environment is sequentially mediated by collective efficacy and self-efficacy. We discuss implications for initiatives to gain a better understanding of travel decisions that can help limit environmentally harmful impacts.publishedVersio

Can I Make a Difference? The Role of General and Domain-specific Self-efficacy in Sustainable Consumption Decisions

We report a study which explored sustainable development self-efficacy (SDSE) beliefs, that is, domain-specific self-efficacy beliefs concerning one’s ability to foster sustainable development. We propose that the following aspects be considered when studying SDSE: Three dimensions of sustainable development (environmental preservation, social fairness, economic welfare) and direct as well as indirect behaviors influencing sustainable development. In an online survey among Norwegian consumers (N = 402), we measured SDSE, general selfefficacy (GSE; Schwarzer, 1993), and two indicators of sustainable consumption. A factor analysis yielded four separable facets of SDSE: The perceived ability (i) to encourage others to act sustainably, (ii) to promote environmental preservation by one’s own actions and consumption decisions, (iii) to promote social fairness and economic welfare through one’s consumption, and (iv) to promote social fairness and economic welfare through one’s actions in general. Self-efficacy concerning encouraging others turned out to be the strongest predictor of sustainable consumption behavior, stronger than self-efficacy concerning directly preserving the environment. The latter was a significant predictor only for choices of ecological produce. GSE did not contribute to predicting sustainable consumption. We discuss the structure of the SDSE concept, its role in shaping sustainable consumption decisions, and how it might be extended in future studies

Can I Make a Difference? The Role of General and Domain-specific Self-efficacy in Sustainable Consumption Decisions

We report a study which explored sustainable development self-efficacy (SDSE) beliefs, that is, domain-specific self-efficacy beliefs concerning one’s ability to foster sustainable development. We propose that the following aspects be considered when studying SDSE: Three dimensions of sustainable development (environmental preservation, social fairness, economic welfare) and direct as well as indirect behaviors influencing sustainable development. In an online survey among Norwegian consumers (N = 402), we measured SDSE, general selfefficacy (GSE; Schwarzer, 1993), and two indicators of sustainable consumption. A factor analysis yielded four separable facets of SDSE: The perceived ability (i) to encourage others to act sustainably, (ii) to promote environmental preservation by one’s own actions and consumption decisions, (iii) to promote social fairness and economic welfare through one’s consumption, and (iv) to promote social fairness and economic welfare through one’s actions in general. Self-efficacy concerning encouraging others turned out to be the strongest predictor of sustainable consumption behavior, stronger than self-efficacy concerning directly preserving the environment. The latter was a significant predictor only for choices of ecological produce. GSE did not contribute to predicting sustainable consumption. We discuss the structure of the SDSE concept, its role in shaping sustainable consumption decisions, and how it might be extended in future studies.publishedVersio

Attitudes, efficacy beliefs, and willingness to pay for environmental protection when travelling

Environmental sustainability may be seen as a collective challenge that can only be met if a sufficient number of individuals cooperate. Whether or not individual tourists are willing to contribute their share may thus depend not only on the degree to which they think that environmental sustainability is important (attitudes), but also on the degree to which they think that other tourists hold similar attitudes (social comparison). Other possible influences are beliefs that one's own behaviour can make a difference (self-efficacy beliefs) and that tourists as a group together can make a difference (collective efficacy beliefs). This paper reports on findings from a study (N = 358) that investigated the role of these factors in explaining people's willingness to pay for environmental protection when travelling. Attitudes, self-efficacy and collective efficacy accounted for 30% of the variance in willingness to pay for environmental protection; social comparison did not explain additional variance. Theoretical and practical implications are discussed.publishedVersio

Can social comparison feedback affect indicators of eco-friendly travel choices? Insights from two online experiments

Two online experiments explored the effects of social comparison feedback on indicators of eco-friendly travel choices. It was tested whether the chosen indicators are sensitive to the information conveyed, and if this varies as a function of in-group identification. Study 1 (N = 134) focused on unfavourable feedback (i.e., being told that one has a larger ecological footprint than the average member of a reference group). People who received unfavourable feedback reported stronger intentions to choose eco-friendly travel options than those who received nondiscrepant feedback, when in-group identification was high (not moderate or low). Perceived self- and collective efficacy were not associated with the feedback. Study 2 (N = 323) extended the focus on favourable feedback (i.e., being told that one has a smaller ecological footprint than the average member of a reference group). Neither unfavourable nor favourable feedback was associated with behavioural intentions, self- or collective efficacy. This means that Study 2 failed to replicate the finding of Study 1 that behavioural intentions were associated with unfavourable feedback, given that in-group identification is high. The findings are discussed in light of the existing literature. Suggestions are made for future studies investigating social comparison feedback as a means to motivate people to make eco-friendly travel choices.publishedVersio

Hydrogen-Bond Strengthening upon Photoinduced Electron Transfer in Ruthenium-Anthraquinone Dyads Interacting with Hexafluoroisopropanol or Water

Quinones play a key role as primary electron acceptors in natural photosynthesis, and their reduction is known to be facilitated by hydrogen-bond donors or protonation. In this study, the influence of hydrogen-bond donating solvents on the thermodynamics and kinetics of intramolecular electron transfer between Ru(bpy)32+ (bpy = 2,2′-bipyridine) and 9,10-anthraquinone redox partners linked together via one up to three p-xylene units was investigated. Addition of relatively small amounts of hexafluoroisopropanol to dichloromethane solutions of these rigid rodlike donor–bridge–acceptor molecules is found to accelerate intramolecular Ru(bpy)32+-to-anthraquinone electron transfer substantially because anthraquinone reduction occurs more easily in the presence of the strong hydrogen-bond donor. Similarly, the rates for intramolecular electron transfer are significantly higher in acetonitrile/water mixtures than in dry acetonitrile. In dichloromethane, an increase in the association constant between hexafluoroisopropanol and anthraquinone by more than 1 order of magnitude following quinone reduction points to a significant strengthening of the hydrogen bonds between the hydroxyl group of hexafluoroisopropanol and the anthraquinone carbonyl functions. The photoinduced intramolecular long-range electron transfer process thus appears to be followed by proton motion; hence the overall photoinduced reaction may be considered a variant of stepwise proton-coupled electron transfer (PCET) in which substantial proton density (rather than a full proton) is transferred after the electron transfer has occurred

Contextualizing information enhances the experience of environmental art.

Environmentally themed art is increasingly addressed in research as a means to raise awareness of environmental problems and motivate proenvironmental behavior. However, as researchers begin to systematically study environmental art, influencing factors must be addressed—for example, the effect of presenting contextualizing information. In the present study, 123 participants saw an environmental artwork with or without contextualizing information in a between-subjects design and rated the artwork on various variables regarding its aesthetic value and proenvironmental impact. Additionally, eye movement was recorded using mobile eye-tracking glasses to gain insight into the visual processing of the artwork. The results showed that information presentation increased personal meaning, which was in turn associated with increased liking, interest, and emotional responses. The average duration of fixations was shorter for participants in the information group, indicating easier processing possibly due to the guidance of the provided information. However, information had no effects on participants’ proenvironmental intentions and behavior. Taken together, the results strongly suggest that both researchers and practitioners should be taking the effect of contextualizing information into account when exhibiting environmental art, because it can impact a variety of relevant factors

Historical Health Conditions in Major US Cities: The HUE Data Set

The Historical Urban Ecological data set is a new resource detailing health and environmental conditions within seven major U.S. cities during the study period from 1830 to 1930. Researchers collected and digitized ward-level data from annual reports of municipal departments that detail the epidemiological, economic, and demographic conditions within each city. They then drafted new geographic information system data to link the tabular records to ward geographies. These data provide a new foundation to revisit questions surrounding the urban mortality transition and the growth of U.S. cities