Probing Solar Convection

In the solar convection zone acoustic waves are scattered by turbulent sound speed fluctuations. In this paper the scattering of waves by convective cells is treated using Rytov's technique. Particular care is taken to include diffraction effects which are important especially for high-degree modes that are confined to the surface layers of the Sun. The scattering leads to damping of the waves and causes a phase shift. Damping manifests itself in the width of the spectral peak of p-mode eigenfrequencies. The contribution of scattering to the line widths is estimated and the sensitivity of the results on the assumed spectrum of the turbulence is studied. Finally the theoretical predictions are compared with recently measured line widths of high-degree modes.Comment: 26 pages, 7 figures, accepted by MNRA

Integration of a clinical pharmacist workforce into newly forming primary care networks: a qualitatively driven, complex systems analysis

Objective The introduction of a new clinical pharmacist workforce via Primary Care Networks (PCNs) is a recent national policy development in the National Health Service in England. This study elicits the perspectives of people with responsibility for local implementation of this national policy package. Attention to local delivery is necessary to understand the contextual factors shaping the integration of the new clinical pharmacy workforce, and thus can be expected to influence future role development. Design A qualitative, interview study Setting and participants PCN Clinical Directors and senior pharmacists across 17 PCNs in England (n=28) Analysis Interviews were transcribed, coded and organised using the framework method. Thematic analysis and complex systems modelling were then undertaken iteratively to develop the themes. Results Findings were organised into two overarching themes: (1) local organisational innovations of a national policy under conditions of uncertainty; and (2) local multiprofessional decision-making on clinical pharmacy workforce integration and initial task assignment. Although a phased implementation of the PCN package was planned, the findings suggest that processes of PCN formation and clinical pharmacist workforce integration were closely intertwined, with underpinning decisions taking place under conditions of considerable uncertainty and workforce pressures. Conclusions National policy decisions that required General Practitioners to form PCNs at the same time as they integrated a new workforce risked undermining the potential of both PCNs and the new workforce. PCNs require time and support to fully form and integrate clinical pharmacists if successful role development is to occur. Efforts to incentivise delivery of PCN pharmacy services in future must be responsive to local capacity

Patient perspectives on discussing alcohol as part of medicines review in community pharmacies.

BACKGROUND: This paper reports on a qualitative study which formed part of the intervention development phase of a five year research programme (Community pharmacy: Highlighting Alcohol use in Medication aPpointments; CHAMP-1). OBJECTIVES: To better understand patient views on the appropriateness of alcohol as a subject for discussion in medication reviews in community pharmacy. METHODS: Semi-structured interviews were conducted with a sample of 25 people eligible for medication reviews whose AUDIT-C screening scores identified them as likely risky drinkers. Transcripts were analysed using a modified framework method with a constructionist thematic analysis approach. RESULTS: Most patients interviewed said they were open to the idea of a medication and alcohol linked discussion with a pharmacist if this was routine, well-conducted and confidential. Such a discussion was thought less personally relevant for those who viewed the proposed intervention through the prism of a particular set of ideas about the nature of alcohol problems, which distanced them from thinking about alcohol in terms of their everyday life and possible impacts on their health. Study findings attest to some of the sensitivities involved in discussion of alcohol, and the complexities inherent in helping people to talk about their own drinking, medicine use and health. CONCLUSIONS: Patients were open to the idea of discussing alcohol with community pharmacists in the context of a medicines review if this was sensitively done and the relevance was clear to them

Contemplations on Dirac's equation in quaternionic coordinates

A formulation of Dirac's equation using complex-quaternionic coordinates appears to yield an enormous gain in formal elegance, as there is no longer any need to invoke Dirac matrices. This formulation, however, entails several peculiarities, which we investigate and attempt to interpret

Intramyocardial current flow in acute coronary occlusion in the canine heart

Data from numerous experimental infarction studies indicate that rapid myocardial cell depolarization following ischemia causes the flow of injury currents. These currents were measured in the canine myocardium by monitoring voltage gradients across infarct boundaries using silver chloride plunge electrodes, followed by placement of a 100 Ω resistor between the electrodes and again measuring the voltage gradients. Current flow was calculated from these measurements with the following results: 1) TQ currents developed within 15 seconds after occlusion and persisted for 120 to 150 minutes, often attaining a magnitude of 1μA. 2) ST currents also developed within 15 seconds and attained 2 to 3 μA within 15 to 30 minutes, then usually subsided to some degree. 3) T currents were biphasic and attained 2 to 5 μA. Initially, current flowed from normal to ischemic myocardium but usually reversed within 30 minutes after occlusion. 4) The current flow was often disproportionate to the voltage gradient between 120 and 180 minutes after occlusion, possibly indicating electrical uncoupling of the infarcting cells from normal cells.These data indicate that intramyocardial current flow develops early after acute coronary occlusion. These currents may be sufficient to induce reexcitation

Using qualitative process evaluation in the development of a complex intervention to advance person-centred practice by pharmacists: The Medicines and Alcohol Consultation (MAC)

In order to effectively evaluate complex interventions, there have been calls for the further integration of qualitative methods. Qualitative process studies of brief alcohol interventions and medicines reviews are notably lacking. This article provides a grounded example through the presentation of findings from an embedded qualitative process evaluation of a multi-site, pilot cluster RCT of a new intervention: the Medicines and Alcohol Consultation (MAC). MAC is designed to increase the capacity of community pharmacists (CPs) to conduct person-centred medicines reviews in which the subject of alcohol consumption is raised in connection with medications and associated health conditions. Participant-focused qualitative studies (interviews, observations, recorded consultations) sought to understand how CPs engaged with and implemented MAC in context. This article documents effects of the intervention on developing person-centred consultation practice and highlights how qualitative process studies can be used formatively to develop middle range programme theory and to optimise intervention design for testing in a definitive RCT

Male pre-service teachers: navigating masculinities on campus and on placement

This paper reports on research examining how male pre-service primary school teachers negotiate masculinities during their time within majority-female spaces. Four white undergraduate pre-service teachers in the North of England, UK, who were training to teach children aged 5–11 years were recruited. Interviews took place pre-and-post their seven-week practicum within primary schools, relating to their experiences of masculinity within their course and practicum. Participants kept a solicited diary for the duration of the practicum. Using thematic analysis, we highlight how participants were both subject to and complicit in the (re)production of gendered stereotypes. Findings evidenced the participants’ awareness of gendered assumptions placed upon them; however, this did not necessarily predicate their rejection of such positions, suggesting male and female teachers share responsibility for largely maintaining current hegemonic constructions of masculinities within schools

Gravitational Helioseismology?

The magnitudes of the external gravitational perturbations associated with the normal modes of the Sun are evaluated to determine whether these solar oscillations could be observed with the proposed Laser Interferometer Space Antenna (LISA), a network of satellites designed to detect gravitational radiation. The modes of relevance to LISA---the $l=2$, low-order $p$, $f$ and $g$-modes---have not been conclusively observed to date. We find that the energy in these modes must be greater than about $10^{30} \rm{ergs}$ in order to be observable above the LISA detector noise. These mode energies are larger than generally expected, but are much smaller than the current observational upper limits. LISA may be confusion-limited at the relevant frequencies due to the galactic background from short-period white dwarf binaries. Present estimates of the number of these binaries would require the solar modes to have energies above about $10^{33} \rm{ergs}$ to be observable by LISA.Comment: 8 pages; prepared with REVTEX 3.0 LaTeX macro

The Future of Qualitative Research in Psychology: Accentuating the Positive.

In this paper we reflect on current trends and anticipate future prospects regarding qualitative research in Psychology. We highlight various institutional and disciplinary obstacles to qualitative research diversity, complexity and quality. At the same time, we note some causes for optimism, including publication breakthroughs and vitality within the field. The paper is structured into three main sections which consider: 1) the positioning of qualitative research within Psychology; 2) celebrating the different kinds of knowledge produced by qualitative research; and 3) implementing high quality qualitative research. In general we accentuate the positive, recognising and illustrating innovative qualitative research practices which generate new insights and propel the field forward. We conclude by emphasising the importance of research training: for qualitative research to flourish within Psychology (and beyond), students and early career researchers require more sophisticated, in-depth instruction than is currently offered