Comparing perceived injustices from supervisors and romantic partners as predictors of aggression.

[Correction Notice: An erratum for this article was reported in Vol 15(4) of Journal of Occupational Health Psychology (see record 2010-22711-002). Advance online publication. doi: 10.1037/ a0020520), the order of authorship was listed incorrectly. The correct order of authorship follows: Kathryne E. Dupré, Julian Barling, Nick Turner, and Chris B. Stride. All versions of this article have been corrected.] To examine the predictive effects of perceived injustice in two different interpersonal relationships (i.e., working relationship with a supervisor, romantic relationship with a partner) on aggression enacted in those relationships, we computed a series of multilevel regressions on 62 heterosexual couples with all 124 partners employed part-time and working for different supervisors. Higher levels of perceived supervisor injustice predicted higher supervisor-directed aggression, whereas higher levels of perceived partner injustice predicted lower supervisor-directed aggression. An interaction between perceived partner injustice and anger predicted higher levels of partner-directed aggression. Implications and recommendations for future research on the relationship specificity of perceived injustice are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Crystal structures of novel allosteric peptide inhibitors of HIV integrase identify new interactions at the LEDGF binding site

An optimised method of solution cyclisation gave us access to a series of peptides including SLKIDNLD (2). We investigated the crystallographic complexes of the HIV integrase (HIV-IN) catalytic core domain with 13 of the peptides and identified multiple interactions at the binding site, including hydrogen bonds with residues Thr125 and Gln95, that have not previously been described as being accessible within the binding site. We show that the peptides inhibit the interaction of lens epithelium-derived growth factor (LEDGF) with HIV-IN in a proximity AlphaScreen assay and in an assay for the LEDGF enhancement of HIV-IN strand transfer. The interactions identified represent a potential framework for the development of new HIV-IN inhibitors.     

In Situ Imaging of Barnacle (Balanus amphitrite) Cyprid Cement Using Confocal Raman Microscopy

Barnacles are a model for research on permanent underwater adhesion and the wider process of marine biofouling. A detailed understanding of the permanent adhesive secreted by the cypris larva for permanent settlement, the so-called cyprid cement, has potential to lead to novel antifouling solutions. There is a need for micro-analytical chemical in situ methods to gain more insight into the process of adhesion and the chemical composition of the cement. In this study, the applicability of confocal Raman microscopy for imaging the cyprid cement beneath permanently attached juvenile barnacles (Balanus amphitrite) was explored. Based on acquired area scans Raman images for characteristic chemical functional groups were obtained. In addition to showing the morphology of the attachment apparatus, the images provided information on chemical composition, in particular the hydration state of the cement, and demonstrated the potential of this method for in situ studies of adhesion at the micro-scale.     

Mediation of oxidation reactions at noble metal anodes by low levels of in situ generated hydroxy species

The study of organic oxidation reactions at noble metal electrodes in aqueous media is frequently complicated by surface deactivation effects. Hydrazine is a very useful model compound for this type of work as it is both highly reactive and free of complications due to poisoning. It was demonstrated that for several metals (Au, Pt, Pd and possibly Rh) the potential for the onset of oxidation of dissolved species at low pH coincided approximately with that for hydrous oxide reduction in the absence of oxidisable species. Compact monolayer oxides, and high levels of adsorbed hydrogen, have an inhibiting effect—the latter is particularly marked with Ir and Ru. With the other metals (and also, according to earlier data, with both Ag and Cu in base) the effective oxidising agents were apparently low levels of hydrous oxide species generated at low coverage, adatom sites at the electrode—solution interface. There may be also some activation of the dissolved species due to adsorption or coordination at active centres on the electrode surface.     

About This Special Issue.

This issue of the American Psychologist is devoted to what is probably the timeliest legislative topic confronting psychology today--national health insurance. In one way or another it affects all psychologists, and the way professional psychologists and the American Psychological Association address the problem has potentially far-reaching implications not only for psychology but also for society. The Congress of the United States will eventually determine the structure of national health insurance. That word has yet to be written, and with it will be determined whether national health insurance will include a mental health benefit of any substance and, if so, whether it will include the services of qualified psychologists. The articles in this Special Issue are by no means definitive. They are intended to be representative of the three groups who have a substantial interest in the topic, in the hope of stimulating discussion and involvement of the broader APA membership in the issue of national health insurance. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The effect of premixed stratification on the wave dynamics of a rotating detonation combustor

Typical injection schemes of rotating detonation combustors inject fuel locally into the combustion channel, creating stratified fuel-rich and fuel-lean mixing regions. In this study, premixed hydrogen and air rotating detonations are explored in a rotating detonation combustor through premixing part of the fuel into the oxidizer flow. The objective is to investigate the effect of premixing on the operation of the combustor. Three premixing schemes are examined where the detonation wave speeds are analyzed. The results show that in premixing, the fuel-lean regions became more favorable for continuous detonation propagation when premixed with the bypass fuel, resulting in higher detonation wave speeds. This phenomenon is shown to be independent of the global fuel-air equivalence ratio and the amount of fuel premixed into the oxidizer. As such, combustor performance and the operational regime could be improved with lean hydrogen premixing amounts in the main flow oxidizer.     

Micro-alumina particle volatilization temperature measurements in a heterogeneous shock tube

Peak flame temperatures in aluminum particle combustion should approach the volatilization temperature of the product alumina. References are divided in assigning this temperature anywhere between 3200 and 4000 K, which can provide significant uncertainty not only in numerical models for combustion but also in the interpretation of flame structure from temperature measurements. We present results in the controlled conditions of the UIUC heterogeneous shock tube of volatilization temperature, made by measuring the extinction of light by nano- and micro-alumina particles at non-resonant wavelengths at different ambient temperatures. At 10 atm, there is a sharp cutoff at 3860 K beyond which nano-particles volatilize and stop extinguishing within the shock tube test time. Numerical modeling of the evaporation rate of these particles is used to assign a volatilization temperature of 4340 K at 10 atm. Similarly, a volatilization temperature of 4260 K at 3 atm is measured. From our analysis, the best estimate for the volatilization temperature at 1 atm was 4189 ± 200 K, which is consistent with the high range of volatilization temperature reported in the literature.     

Methodological review of UK and international low carbon scenarios

Scenarios have a long history in business, politics and military planning, as a tool for strategic planning to inform protective, proactive or consensus-based decision making in the face of uncertain futures. Recent years have seen a growth in scenarios for assessing the implications of low carbon futures, but relatively little work has linked these energy scenarios to the broader literature on scenario development. This paper undertakes a methodological review of a selection of UK and international low carbon scenario studies, using a typology of ‘trend based’, ‘technical feasibility’ and ‘modelling’ studies. Dominant methodologies in such studies have been the 2×2 axis and the ‘back-casting’ approach. Strengths of the studies reviewed include technological detail, and identification of key economic and social constraints. Weaknesses include the over-reliance on constructs such as exogenous emissions constraints, and high level trends, which diminish the ability to understand how the various future scenarios could be brought about or avoided. This is compounded by the lack of depiction of specific system actors; the tendency to abstract policy from the scenarios; and the resulting failure to consider policy, technology and behaviour in an iterative, ‘co-evolving’ fashion.