5,817 research outputs found

    The Crucial Role of Counties in the Health of Californians: An Overview

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    Examines county programs and services including indigent health care, public health, mental health, and substance abuse treatment, as well as challenges and considerations for federal healthcare reform, innovation, and realignment of government services

    Soil carbon stocks in a Sitka spruce chronosequence following afforestation

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    peer-reviewedIncreasing concentrations ofCO2 and other greenhouse gases in the atmosphere are leading to concern worldwide due to their contribution to the greenhouse effect. As the body of evidence supporting the need for change from a carbon rich economy/society becomes stronger, international mitigation agreements require high quality and precise information. Following the Kyoto Protocol and EU agreements to reduce carbon production, countries could utilise default values or comparable international data to calculate their carbon budgets. Initially, approximations were successful for generating a guide to a national carbon stock for reporting GHG inventories to the UNFCCC (Tier 1 ). However, now that the second phase of the Kyoto protocol is running until 2020, greater accuracy is essential and, where possible, nationally specific information is increasingly required (Tier 3, UNFCCC). Forestry and forest soils are seen as a key component in the carbon cycle and depending on their management, can mitigate or contribute to GHG emissions. Litter and soil organic matter (SOM) are two of the major carbon pools required for reporting under LULUCF. In this study, stocks of SOM and litter were recorded along a chronosequence of Sitka spruce (Picea sitchensis (Bong.) Carr.) on wet mineral gley soil. Over a 47-year period, the rate of soil carbon sequestration was found to be 1 .83 t C ha−1 yr−1 . Soil microbial biomass was used to estimate highly active SOM. The mineral soils were also fractionated in a density separation procedure to identify light and heavy SOM pools. These estimates can now be used to model carbon budgets of this most common soil type currently under forestry in Ireland.The Irish National Council for Forest Research and Development provided funding for this work as part of the CARBiFOR research project

    Social conformity and autism spectrum disorder : a child-friendly take on a classic study

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    Perhaps surprisingly, given the importance of conformity as a theoretical construct in social psychology and the profound implications autism has for social function, little research has been done on whether autism is associated with the propensity to conform to a social majority. This study is a modern, child-friendly implementation of the classic Asch conformity studies. The performance of 15 children with autism was compared to that of 15 typically developing children on a line judgement task. Children were matched for age, gender and numeracy and literacy ability. In each trial, the child had to say which of three lines a comparison line matched in length. On some trials, children were misled as to what most people thought the answer was. Children with autism were much less likely to conform in the misleading condition than typically developing children. This finding was replicated using a continuous measure of autism traits, the Autism Quotient questionnaire, which showed that autism traits negatively correlated with likelihood to conform in the typically developing group. This study demonstrates the resistance of children with autism to social pressure

    Study on the effect of contamination on the performance of X-ray telescopes

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    Modifications were made to the X-ray reflectometer located at the Space Sciences Laboratory, Marshall Space Flight Center. One was an automatic drive for the Large Micrometer Head. This system, interfaced with the Hewlett Packard Computer System, is used to record data and provides the X-ray reflectometer with an automated data-taking capability. Using this system, a complete scatter curve can be obtained automatically. Previously, it was necessary to manually reset the system after recording for each data point in the scatter curve. The second modification provided an externally controlled electrical drive to move the microfocus X-ray source along its axis. With this modification, one can translate the X-ray source while it is operating to locate the position providing maximum count rate

    The typical developmental trajectory of social and executive functions in late adolescence and early adulthood.

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    Executive functions and social cognition develop through childhood into adolescence/early adulthood and are important for adaptive goal-oriented behaviour (Apperly, Samson & Humphreys, 2009; Blakemore & Choudhury, 2006). These functions are attributed to frontal networks known to undergo protracted maturation into early adulthood (Barker, Andrade, Morton, Romanowski & Bowles, 2010; Lebel, Walker, Leemans, Phillips & Beaulieu, 2008) although social cognition functions are also associated with widely distributed networks. Previously, non-linear development has been reported around puberty on an emotion match to sample task (McGivern, Andersen, Byrd, Mutter & Reilly, 2002) and for IQ in mid adolescence (Ramsden et al., 2011). However, there are currently little data on the typical development of social and executive functions in late adolescence and early adulthood. In a cross sectional design, 98 participants completed tests of social cognition and executive function, Wechsler Abbreviated Scale of Intelligence (Wechsler, 1999), Positive and Negative Affect Scale (Watson, Clark & Tellegan, 1988), Hospital Anxiety and Depression Scale (Zigmond & Snaith, 1983) and measures of pubertal development and demographics at age 17, 18 and 19. Non-linear age differences for letter fluency and concept formation executive functions were found, with a trough in functional ability in 18 year olds compared to other groups. There were no age group differences on social cognition measures. Gender accounted for differences on one scale of concept formation, one dynamic social interaction scale and two empathy scales. The clinical, developmental and educational implications of these findings are discussed

    After six years of austerity, Ireland’s coalition government has little room to manoeuvre.

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    One of the first countries to be seriously affected by the Eurozone crisis, after six years, Ireland may now be at risk of ‘austerity fatigue’. Theresa Reidy writes that facing increasing opposition to austerity, Ireland’s coalition government now clings together in faint hope that an economic miracle is around the corner

    Assessing the Impact of Market Microstructure Noise and Random Jumps on the Relative Forecasting Performance of Option-Implied and Returns-Based Volatility

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    This paper presents a comprehensive empirical evaluation of option-implied and returns-based forecasts of volatility, in which new developments related to the impact on measured volatility of market microstructure noise and random jumps are explicitly taken into account. The option-based component of the analysis also accommodates the concept of model-free implied volatility, such that the forecasting performance of the options market is separated from the issue of misspecification of the option pricing model. The forecasting assessment is conducted using an extensive set of observations on equity and option trades for News Corporation for the 1992 to 2001 period, yielding certain clear results. According to several different criteria, the model-free implied volatility is the best performing forecast, overall, of future volatility, with this result being robust to the way in which alternative measures of future volatility accommodate microstructure noise and jumps. Of the volatility measures considered, the one which is, in turn, best forecast by the option-implied volatility is that measure which adjusts for microstructure noise, but which retains some information about random jumps.Volatility Forecasts; Quadratic Variation; Intraday Volatility Measures; Model-free Implied Volatility.

    What children on the autism spectrum have to ‘say’ about using high-tech voice output communication aids (VOCAs) in an educational setting

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    This paper focuses on accessing the experiences of three boys who are on the autism spectrum to identify what using a voice output communication aid (VOCA), within a classroom setting, means to them. The methods used to identify the boys' perspectives are described and evaluated. Establishing these through direct methods of engagement proved problematic but working with parents and school staff as ‘expert guides’ provided a rich insight into what using a VOCA appeared to mean to the boys. The findings suggest that using a computer-based VOCA can be viewed by children with autism as a pleasurable and motivating activity. This technology also seems to offer the potential for a much broader developmental impact for these children than that currently recognised within the research literature

    Developing and modelling complex social interventions: introducing the Connecting People Intervention

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    Objectives: Modeling the processes involved in complex social interventions is important in social work practice, as it facilitates their implementation and translation into different contexts. This article reports the process of developing and modeling the connecting people intervention (CPI), a model of practice that supports people with mental health problems to enhance their social networks. Method: The CPI model was developed through an iterative process of focus group discussions with practitioners and service users and a two-stage Delphi consultation with relevant experts. Results: We discuss the intervention model and the processes it articulates to provide an example of the benefits of intervention modeling. Conclusions: Intervention modeling provides a visual representation of the process and outcomes of an intervention, which can assist practice development and lead to improved outcomes for service users
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