Sigma terms from an SU(3) chiral extrapolation

We report a new analysis of lattice simulation results for octet baryon masses in 2+1-flavor QCD, with an emphasis on a precise determination of the strangeness nucleon sigma term. A controlled chiral extrapolation of a recent PACS-CS Collaboration data set yields baryon masses which exhibit remarkable agreement both with experimental values at the physical point and with the results of independent lattice QCD simulations at unphysical meson masses. Using the Feynman-Hellmann relation, we evaluate sigma commutators for all octet baryons. The small statistical uncertainty, and considerably smaller model-dependence, allows a signifcantly more precise determination of the pion-nucleon sigma commutator and the strangeness sigma term than hitherto possible, namely {\sigma}{\pi}N=45 \pm 6 MeV and {\sigma}s = 21 \pm 6 MeV at the physical point.Comment: 4 pages, 4 figure

Pathways to employment for people in the recovery phase of mental illness

The study sought to identify through the action research process what local employers concerns were in relation to the employment of individuals in a phase of recovery from mental illness. The barriers to employment experienced by service users living in a North London Borough were also explored. The study aimed to gain an in-depth understanding of the reluctance by employers to employ individuals with a known mental illness who are in a phase of recovery. It also sought to hear about the lived experiences and perspectives on the barriers experienced to accessing or being in employment from a service user’s perspective. There is limited literature examining this area within this North London Borough. This qualitative study was informed by my professional background where I hold a dual role of managing mental health services in the community and as a lecturer in Cognitive Behavioural Therapy at Middlesex University. Both roles are concerned with promoting the mental health well-being of individuals who experience mental illness. The study adopted an action research design, where six focus groups were held, three with service users and three with employers or employer representatives within a North London Borough.16 employer representatives and 28 service users participated across the six focus groups. The data gathered from each focus group was digitally recorded and transcribed verbatim. Thematic analysis was used to identify the main themes and subsequent sub –themes from the data gathered. The findings from the research indicate that there are many stakeholders that are involved in supporting individuals back into employment. They also show that mental health and mental ill health are poorly understood in workplace environments. Evidence from this study indicated that while work and employment were thought by both participant types to be important determinants of mental health those individuals with diagnosed mental illnesses remain at a significant disadvantage in the employment market. This points to a need for developments that educate employers, employees and various other stake-holders involved in the employment process on mental health and mental illness in the work- place environment. The main contribution of this research is that of a support and educational package for employers and employees, which has core content but will change in its focus depending on the audience it is being delivered to

A Water-Quality History of the Blackstone River, Massachusetts, USA: Implications for Central and Eastern European Rivers

The Blackstone River is a relatively small river that drains the area around Worcester, Massachusetts, one of first industrialized cities in the United States. Until the 1970s, the river was highly polluted by industrial and municipal wastewaters -- not unlike the current situation in degraded rivers in areas of Central and Eastern Europe (CEE). Today, the Blackstone enjoys considerably improved water quality as the result of two historical processes: continuing investment and improvement in municipal wastewater treatment in response to increasingly stringent U.S. federal water-quality laws, and the control or elimination of industrial discharges. A key factor in the river's restoration was the early development of and continued adherence to a comprehensive basin water-quality plan. A similar planning process is recommended for CEE countries. Nonetheless, achieving acceptable water quality in the Blackstone was a slow process, requiring decades of intensive improvement in wastewater treatment. A similarly slow process can be anticipated in the CEE countries unless cost-effective interim improvements in wastewater treatment are sought

A Teaching Case Study: Roxy Music Limited

Roxy Music Limited is a wholesale supplier of Compact Discs (CDs), Music Cassettes, Videos and, more recently DVDs, in the New Zealand music and entertainment market. All products are imported from Germany, the United Kingdom, the United States of America or Holland. Product arrives in boxes of 1,000 units. For the purpose of this case, we are focusing on CD sales