Faraday rotation variations along radio jets: the magnetic field in galaxy and group halos

Our modelling of FR I radio jets as decelerating, relativistic flows allows us to derive their orientations accurately. We present images of Faraday rotation for two of these these objects (3C 31 and NGC 315) and show that the fluctuations of rotation measure (RM) are larger in the fainter (receding) jets, as expected if the rotation occurs in the hot galaxy/group halos. The gas density is much lower in NGC 315 and the RM fluctuations are only just detectable.Comment: 3 pages, 2 figures, requires an.cls. To appear in the Proceedings of the International Conference: "The Origin and Evolution of Cosmic Magnetism"; Bologna 29 August - 2 September 2005; eds R. Beck, G. Brunetti, L. Feretti, and B. Gaensler (Astronomische Nachrichten, 2006

Narratives of Mental Health Professionals Supporting Trans, Gender Diverse and Gender Questioning Adults

Trans, gender diverse and gender questioning people appear at a high risk of suffering from mental health difficulties, but often describe having negative experiences accessing both physical and mental healthcare in the UK. At the same time, health professionals have described feeling deskilled, and lacking confidence in their ability to support gender diverse people. There has been limited research exploring the experiences of mental health professionals who provide care for gender diverse people in mainstream mental health services, and even less in the UK. In this study, 7 mental health professionals from a range of disciplines took part in semi-structured narrative interviews via Skype, telephone, or in person. Accounts were analysed using Constructionist Narrative Analysis, to better understand the types of stories told, the positions taken by the participants, and the local, social and historical contexts of the narratives’ construction. The clinicians’ narratives were infused with wider societal narratives, which were drawn on and resisted in their stories. These included narratives of feeling deskilled, standing up to higher powers, separating different parts of a person, risk from men, and transwomen as dangerous. Implications for clinical practice have been suggested, such as providing open and non-judgmental space for discussion when training mental health professionals in gender diversity, and holding in mind the influence of powerful narratives when designing policies and making decisions about mental healthcare for gender diverse individuals

Magnetic fields in jets: ordered or disordered?

The question of the degree of order in the magnetic fields of relativistic jets is important to any understanding of their production. Both vector-ordered (e.g. helical) and disordered, but anisotropic fields can produce the high observed degrees of polarization. We outline our models of jets in FR I radio galaxies as decelerating relativistic flows. We then present theoretical calculations of the synchrotron emission from different field configurations and compare them with observed emission from FR I jets. We show that large-scale helical fields (with significant poloidal and toroidal components) are inconsistent with observations. The combination of an ordered toroidal and disordered poloidal component is consistent with our data, as is an entirely disordered field. Jets must also contain small, but significant amounts of radial field.Comment: 5 pages, 6 figures, requires an.cls. To appear in the Proceedings of the International Conference: "The Origin and Evolution of Cosmic Magnetism"; Bologna 29 August - 2 September 2005; eds R. Beck, G. Brunetti, L. Feretti, and B. Gaensler (Astronomische Nachrichten, 2006

Relativistic jet models for two low-luminosity radio galaxies: evidence for backflow?

We show that asymmetries in total intensity and linear polarization between the radio jets and counter-jets in two lobed Fanaroff-Riley Class I (FR I) radio galaxies, B2 0206+35 (UGC 1651) and B2 0755+37 (NGC 2484), can be accounted for if these jets are intrinsically symmetrical, with decelerating relativistic outflows surrounded by mildly relativistic backflows. Our interpretation is motivated by sensitive, well-resolved Very Large Array imaging which shows that both jets in both sources have a two-component structure transverse to their axes. Close to the jet axis, a centrally-darkened counter-jet lies opposite a centrally-brightened jet, but both are surrounded by broader collimated emission that is brighter on the counter-jet side. We have adapted our previous models of FR I jets as relativistic outflows to include an added component of symmetric backflow. We find that the observed radio emission, after subtracting contributions from the extended lobes, is well described by models in which decelerating outflows with parameters similar to those derived for jets in plumed FR I sources are surrounded by backflows containing predominantly toroidal magnetic fields. These return to within a few kpc of the galaxies with velocities of roughly 0.25c and radiate with a synchrotron spectral index close to 0.55. We discuss whether such backflow is to be expected in lobed FR I sources and suggest ways in which our hypothesis can be tested by further observations.Comment: 22 pages, 17 figures, accepted for publication in MNRA

Lay perceptions of the desired role and type of user involvement in clinical governance

Objective The aim of this paper is to explore variations in lay perceptions of user involvement in clinical governance.Context The English National Health Service has sought to build a dependable health service through enhanced effectiveness, responsiveness and consistency. Clinical governance, a policy for improving service quality, is a key pillar of these reforms. It is a statutory duty of primary care organizations to ensure that users are involved in all service planning and decision making, including clinical governance. Yet surveys indicated that user involvement in clinical governance was underdeveloped and underutilized.Design Focus groups were conducted with different types of lay people to explore their perceptions around public involvement in different aspects of clinical governance policy.Results Content analysis of the transcripts reveals that different groups of lay people varied in their desired role perspective and preferred type of involvement in different aspects of clinical governance policy. Drawing upon existing models of user involvement, we identified three role perspectives that lay people could take in user involvement – consumer, advocate and citizen. We compared our findings regarding the desired type of involvement with existing models of user involvement, and identified a new type of involvement, overseeing, that is relevant to clinical governance policy.Conclusions These findings suggest that to facilitate user involvement in clinical governance, it would be necessary to use different strategies to accommodate the differing role perspectives and types of involvement desired by different groups of lay people

Duty, desire or indifference? A qualitative study of patient decisions about recruitment to an epilepsy treatment trial

Epilepsy is a common neurological condition, in which drugs are the mainstay of treatment and drugs trials are commonplace. Understanding why patients might or might not opt to participate in epilepsy drug trials is therefore of some importance, particularly at a time of rapid drug development and testing; and the findings may also have wider applicability. This study examined the role of patient perceptions in the decision-making process about recruitment to an RCT (the SANAD Trial) that compared different antiepileptic drug treatments for the management of new-onset seizures and epilepsy

Seeking assistance in later life:How do older people evaluate their need for assistance?

Background: legislation places an onus on local authorities to be aware of care needs in their locality and to prevent and reduce care and support needs. The existing literature overlooks ostensibly ‘healthy’ and/or non-users of specific services, non-health services and informal assistance and therefore inadequately explains what happens before or instead of individuals seeking services. We sought to address these gaps by exploring older adults’ accounts of seeking assistance in later life. / Methods: we conducted semi-structured qualitative interviews with 40 adults aged 68–95. We invited participants to discuss any type of support, intervention, or service provision, whether medical, social, family-provided, paid or unpaid. / Findings: this paper reports older people’s accounts of how they evaluated their need for assistance. We found that the people in our sample engaged in a recursive process, evaluating their needs on an issue-by-issue basis. Participants’ progression through this process hinged on four factors: their acknowledgement of decline; the perceived impact of decline on their usual activities and independence; their preparedness to be a recipient of assistance; and, the opportunity to assert their need. In lieu of seeking assistance, participants engaged in self-management, but also received unsolicited or emergency assistance. / Conclusions: older people’s adaptations to change and attempts to meet their needs without assistance mean that they do not present to services, limiting the local authority’s knowledge of their needs and ability to plan appropriate services. Our findings offer four stages for policymakers, service providers and carers to target to address the uptake of assistance