Noncontact GMR measurements of synthetic spin valves using IR reflection spectroscopy

The magnetorefractive effect has been used in infrared reflection spectroscopy to study the magnetotransport properties of synthetic spin valves. This optical noncontact technique shows excellent correlation with the electrical giant magnetoresistance data

Probation, credibility and justice

This paper explores the difficulties that arise for probation agencies or those that deliver community sanctions in developing and maintaining their credibility in prevailing ‘late-modern’ social conditions. It begins by questioning the limits of the pursuit and promise of ‘public protection’ as a source of credibility, and then proceeds to examine the emergence of an alternative strategy – based principally on reparation and ‘payback’ – in Scotland, arguing that these Scottish developments have much to say to the emerging debates in England and Wales (and elsewhere) about the ‘rehabilitation revolution’ and the proper use of imprisonment. The paper provides a critical account of the development and meaning of the Scottish version of ‘payback’, linking it to some important philosophical and empirical studies that may help to steer the development of payback away from a ‘merely punitive’ drift. In the conclusion, I argue that probation agencies and services need to engage much more deeply and urgently with their roles as justice services, rather than as ‘mere’ crime reduction agencies

Work, welfare and wellbeing? The impacts of welfare conditionality on people with mental health impairments in the UK

The personal, economic and social costs of mental ill-health are increasingly acknowledged by many governments and international organisations. Simultaneously, in high income nations the reach of welfare conditionality has extended to encompass many people with mental health impairments as part of on-going welfare reforms. This is particularly the case in the UK where, especially since the introduction of Employment and Support Allowance (ESA) in 2008, the rights and responsibilities of disabled people have been subject to contestation and redefinition. Following a review of the emergent international evidence on mental health and welfare conditionality, this paper explores two specific issues. First, the impacts of the application of welfare conditionality on benefit claimants with mental health impairments. Second, the effectiveness of welfare conditionality in supporting people with experience of mental ill health into paid work. In considering these questions this paper presents original analysis of data generated in qualitative longitudinal interviews with 207 UK social security benefit recipients with experience of a range of mental health issues. The evidence suggests that welfare conditionality is largely ineffective in moving people with mental health impairments into, or closer to, paid work. Indeed, in many cases it triggers negative health outcomes that make future employment less likely. It is concluded that the application of conditionality for people with mental health issues is inappropriate and should cease

A better start to literacy learning: findings from a teacher-implemented intervention in children’s first year at school

CAUL read and publish agreementThis study investigated the feasibility of a teacher implemented intervention to accelerate phonological awareness, letter, and vocabulary knowledge in 141 children (mean age 5 years, 4 months) who entered school with lower levels of oral language ability. The children attended schools in low socioeconomic communities where additional stress was still evident 6 years after the devastating earthquakes in Christchurch, New Zealand in 2011. The teachers implemented the intervention at the class or large group level for 20 h (four 30-min sessions per week for 10 weeks). A stepped wedge research design was used to evaluate intervention effects. Children with lower oral language ability made significantly more progress in both their phonological awareness and targeted vocabulary knowledge when the teachers implemented the intervention compared to progress made when teachers implemented their usual literacy curriculum. Importantly, the intervention accelerated children’s ability to use improved phonological awareness skills when decoding novel words (treatment effect size d = 0.88). Boys responded to the intervention as well as girls and the skills of children who identified as Māori or Pacific Islands (45.5% of the cohort) improved in similar ways to children who identified as New Zealand European. The findings have important implications for designing successful teacher-implemented interventions, within a multi-tier approach, to support children who enter school with known challenges for their literacy learning.fals

Elevated CO2induces a bloom of microphytobenthos within a shell gravel mesocosm

The geological storage of carbon dioxide (CO2) is expected to be an important component of future global carbon emission mitigation, but there is a need to understand the impacts of a CO2 leak on the marine environment and to develop monitoring protocols for leakage detection. In the present study, sediment cores were exposed to CO2-acidified seawater at one of five pH levels (8.0, 7.5, 7.0, 6.5 and 6.0) for 10 weeks. A bloom of Spirulina sp. and diatoms appeared on sediment surface exposed to pH 7.0 and 7.5 seawater. Quantitative PCR measurements of the abundance of 16S rRNA also indicated an increase within the pH 7.0 and 7.5 treatments after 10 weeks incubation. More detailed analysis of the microbial communities from the pH 7.0, 7.5 and 8.0 treatments confirmed an increase in the relative abundance of Spirulina sp. and Navicula sp. sequences, with changes in the relative abundance of major archaeal and bacterial groups also detected within the pH 7.0 treatment. A decreased flux of silicate from the sediment at this pH was also detected. Monitoring blooms of microphytobenthos may prove useful as an indicator of CO2 leakage within coastal area

Cognitive benefits of social dancing and walking in old age: the Dancing Mind randomized controlled trial

Background: A physically active lifestyle has the potential to prevent cognitive decline and dementia, yet the optimal type of physical activity/exercise remains unclear. Dance is of special interest as it complex sensorimotor rhythmic activity with additional cognitive, social, and affective dimensions. Objectives: To determine whether dance benefits executive function more than walking, an activity that is simple and functional. Methods: Two-arm randomized controlled trial among community-dwelling older adults. The intervention group received 1 h of ballroom dancing twice weekly over 8 months (~69 sessions) in local community dance studios. The control group received a combination of a home walking program with a pedometer and optional biweekly group-based walking in local community park to facilitate socialization. Main outcomes: Executive function tests: processing speed and task shift by the Trail Making Tests, response inhibition by the Stroop Color-Word Test, working memory by the Digit Span Backwards test, immediate and delayed verbal recall by the Rey Auditory Verbal Learning Test, and visuospatial recall by the Brief Visuospatial Memory Test (BVST). Results: One hundred and fifteen adults (mean 69.5 years, SD 6.4) completed baseline and delayed baseline (3 weeks apart) before being randomized to either dance (n = 60) or walking (n = 55). Of those randomized, 79 (68%) completed the follow-up measurements (32 weeks from baseline). In the dance group only, “non-completers” had significantly lower baseline scores on all executive function tests than those who completed the full program. Intention-to-treat analyses showed no group effect. In a random effects model including participants who completed all measurements, adjusted for baseline score and covariates (age, education, estimated verbal intelligence, and community), a between-group effect in favor of dance was noted only for BVST total learning (Cohen’s D Effect size 0.29, p = 0.07) and delayed recall (Cohen’s D Effect size = 0.34, p = 0.06). Conclusion: The superior potential of dance over walking on executive functions of cognitively healthy and active older adults was not supported. Dance improved one of the cognitive domains (spatial memory) important for learning dance. Controlled trials targeting inactive older adults and of a higher dose may produce stronger effects, particularly for novice dancers. Trial registration: Australian and New Zealand Clinical Trials Register (ACTRN12613000782730)

Acidity and the multiphase chemistry of atmospheric aqueous particles and clouds

The acidity of aqueous atmospheric solutions is a key parameter driving both the partitioning of semi-volatile acidic and basic trace gases and their aqueous-phase chemistry. In addition, the acidity of atmospheric aqueous phases, e.g., deliquesced aerosol particles, cloud, and fog droplets, is also dictated by aqueous-phase chemistry. These feedbacks between acidity and chemistry have crucial implications for the tropospheric lifetime of air pollutants, atmospheric composition, deposition to terrestrial and oceanic ecosystems, visibility, climate, and human health. Atmospheric research has made substantial progress in understanding feedbacks between acidity and multiphase chemistry during recent decades. This paper reviews the current state of knowledge on these feedbacks with a focus on aerosol and cloud systems, which involve both inorganic and organic aqueous-phase chemistry. Here, we describe the impacts of acidity on the phase partitioning of acidic and basic gases and buffering phenomena. Next, we review feedbacks of different acidity regimes on key chemical reaction mechanisms and kinetics, as well as uncertainties and chemical subsystems with incomplete information. Finally, we discuss atmospheric implications and highlight the need for future investigations, particularly with respect to reducing emissions of key acid precursors in a changing world, and the need for advancements in field and laboratory measurements and model tools

Epidemic spread of adenovirus type 4-associated acute respiratory disease between U.S. Army installations.

A large outbreak of adenovirus type 4-associated acute respiratory disease (ARD) occurred at Fort Jackson, South Carolina, in 1997. A laboratory-based ARD surveillance program was initiated at Fort Gordon, Georgia, where advanced individual training was heavily populated with Fort Jackson soldiers. Adenovirus type 4 was isolated from 50% of 147 trainees hospitalized with ARD. Most (88%) introduced cases were in trainees from Fort Jackson

Making and Sharing the Commons: Reimagining ‘the West’ as Riverlands, Sydney through a Dialogue between Design and Ethnography

Scholars from the social sciences and humanities are increasingly seeking to improve the relevance and social impact of their research beyond the academy. In this context, ‘designerly’ thinking and methods are being drawn on to inform social change agendas, and a range of new relationships and collaborations are forming around this node of activity. This article critically reflects on this trajectory through a dialogue between ethnography, design and theoretical principles from anthropology and human geography