107 research outputs found
Search for lepton flavor violating decays of a heavy neutral particle in p-pbar collisions at root(s)=1.8 TeV
We report on a search for a high mass, narrow width particle that decays
directly to e+mu, e+tau, or mu+tau. We use approximately 110 pb^-1 of data
collected with the Collider Detector at Fermilab from 1992 to 1995. No evidence
of lepton flavor violating decays is found. Limits are set on the production
and decay of sneutrinos with R-parity violating interactions.Comment: Figure 2 fixed. Reference 4 fixed. Minor changes to tex
United Nations Sustainable Development Goals: Promoting health and well-being through physical education partnerships
The United Nations recently approved the Sustainable Development Goals (SDGs) which forms a guideline policy for all nations. While the UN have strongly advised that partnerships are essential for the implementation of these global goals, within local communities there is little evidence of how this is best done or what it looks like in practice. This paper shares a health and wellbeing community initiative that achieves goals three and four of the SDGs, and in doing so models how to implement physical education partnerships as advocated by the UN. The highly successful innovative initiative is “Best Start: A community collaborative approach to lifelong health and wellness” (2011–2014).This paper shares a health and wellbeing partnership, modelling implementation of physical education (PE) advocated by the United Nations (UN). The Sustainable Development Goals (SDGs) exemplifies global efforts towards equality, specifically Goal 3 and 4 address health and wellbeing. The purpose of this paper is to provide insights into cross sector “partnerships”, identified as essential for the implementation of the SDGs. This is significant as the UN acknowledge a present gap of information on partnerships in action and a need for reporting from the ground level. The project “Best Start: A community collaborative approach to lifelong health and wellness”, began as a partnership between a university and nearby schools and quickly grew to involve Australian Registered Training Organisations, the local health industry, Education departments and sport governing bodies. The collaborations involved pre-service teachers teaching Health and PE lessons to children in a disadvantaged socio-economic area, creating valuable learning experiences for stakeholders. Local and global communities were involved in research and reform. The project creatively optimised resources available through state, Australian and international connections. International partnerships enabled identification of unique contextual opportunities. Programme planning was strengthened with data gathered from an England and Wales Ofsted awarded Primary Physical Education course. Various methods, including; semi-structured interviews, reflective journal, observations, document analysis, and Student Evaluation of Teaching Units (SETU) were adopted. SETU is valid and reliable data collected by the university for the purposes of research. The findings support that partnerships enable SDG implementation and the research paper offers direction for localisation
Professionalism, Golf Coaching and a Master of Science Degree: A commentary
As a point of reference I congratulate Simon Jenkins on tackling the issue of professionalism in coaching. As he points out coaching is not a profession, but this does not mean that coaching would not benefit from going through a professionalization process. As things stand I find that the stimulus article unpacks some critically important issues of professionalism, broadly within the context of golf coaching. However, I am not sure enough is made of understanding what professional (golf) coaching actually is nor how the development of a professional golf coach can be facilitated by a Master of Science Degree (M.Sc.). I will focus my commentary on these two issues
The predicament of primary physical education: a consequence of 'insufficient' ITT and 'ineffective' CPD?
Background: Research on primary physical education (PE) in England and other countries has shown that it is an aspect of the curriculum that has suffered from sparse initial teacher training (ITT). As a consequence of ‘insufficient’ time spent on PE in ITT (PE-ITT), primary teachers often have low levels of confidence and competence with respect to teaching the subject. Evidence also points to inadequacies in traditional forms of professional development in PE (PE-CPD), leading to calls for more effective ways of developing teachers' competence to deliver high quality PE.
Purpose: To explore primary school teachers' experiences of PE during ITT and the PE context in their schools prior to them engaging in a national PE-CPD programme, and their perceptions of the immediate and longer-term effects of this programme.
Setting and participants: Primary school teachers in five local education authorities in England.
Research design and data collection: A combination of quantitative and qualitative methodological approaches were adopted, including: pre-course audits, course evaluations, focus groups and semi-structured interviews. The pre-course audits captured information about the teachers' experiences of PE-ITT and the PE context in their schools prior to them engaging in the CPD. The course evaluations focused on initial impressions of the PE-CPD, and the focus groups and interviews captured the teachers' perceptions of its longer-term effects.
Findings: For up to half of the teachers, their PE-ITT was ‘insufficient’ in terms of the time dedicated to it and the breadth of coverage of the subject. The PE-CPD programme, which was designed in the light of ‘insufficient’ PE-ITT, demonstrated features of ‘effective’ CPD in that it was considered relevant to classroom practice and partially addressed some of their many needs (especially in relation to content ideas and inclusive practice). However, its effectiveness was undoubtedly limited due to: its short time span and minimal engagement with teachers; a heavy reliance on resources; and the absence of follow-up support. In addition, it did not adequately address known areas of development for primary PE (such as medium to long-term planning and assessment) and was challenged in meeting the diverse needs of primary teachers of 5–11 year olds. Furthermore, inadequate PE time and reduced opportunities to teach PE in some schools limited implementation of learning from the PE-CPD.
Conclusions: The findings of this study confirmed that PE-ITT continues to be ‘insufficient’ for many primary teachers and that the PE-CPD in question, whilst partially ‘effective’, was not, and could never have been, the panacea for the inherent issues within and predicament of primary PE. In effect, this PE-CPD programme with its limited duration and engagement with teachers, a heavy reliance on resources, and no planned follow-up support was not sufficiently different to forms of CPD described in the literature as ‘ineffective’; consequently, it could not hope to compensate for long-term systemic weaknesses such as inadequate primary PE-ITT. These weaknesses need to be addressed through a dual approach of ‘sufficient’ PE-ITT followed by ‘effective’ PE-CPD which engages teachers and their colleagues in long-term collaborative endeavours that support transformative practice
Cost effectiveness of epidural steroid injections to manage chronic lower back pain
Background
The efficacy of epidural steroid injections in the management of chronic low back pain is disputed, yet the technique remains popular amongst physicians and patients alike. This study assesses the cost effectiveness of injections administered in a routine outpatient setting in England.
Methods
Patients attending the Nottingham University Hospitals’ Pain Clinic received two injections of methylprednisolone plus levobupivacaine at different dosages, separated by at least 12 weeks. Prior to each injection, and every week thereafter for 12 weeks, participants completed the EQ-5D health-related quality of life instrument. For each patient for each injection, total health state utility gain relative to baseline was calculated. The cost of the procedure was modelled from observed clinical practice. Cost effectiveness was calculated as procedure cost relative to utility gain.
Results
39 patients provided records. Over a 13-week period commencing with injection, mean quality adjusted life year (QALY) gains per patient for the two dosages were 0.028 (SD 0.063) and 0.021 (SD 0.057). The difference in QALYs gained by dosage was insignificant (paired t-test, CIs -0.019 – 0.033). Based on modelled resource use and data from other studies, the mean cost of an injection was estimated at £219 (SD 83). The cost utility ratio of the two injections amounted to £8,975 per QALY gained (CIs 5,480 – 22,915). However, at costs equivalent to the tariff price typically paid to providers by health care purchasers, the ratio increased to £27,459 (CIs 16,779 – 70,091).
Conclusions
When provided in an outpatient setting, epidural steroid injections are a short term, but nevertheless cost effective, means of managing chronic low back pain. However, designation of the procedure as a day case requires the National Health Service to reimburse providers at a price which pushes the procedure to the margin of cost effectiveness
NEUROPSYCHOPHARMACOLOGIC STUDIES OF MARIJUANA: SOME SYNTHETIC AND NATURAL THC DERIVATIVES IN ANIMALS AND MAN *
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/74859/1/j.1749-6632.1971.tb13996.x.pd
"Don't wait for them to come to you, you go to them". A qualitative study of recruitment approaches in community based walking programmes in the UK
<p>Abstract</p> <p>Background</p> <p>This study aimed to examine the experiences of walking promotion professionals on the range and effectiveness of recruitment strategies used within community based walking programmes within the United Kingdom.</p> <p>Methods</p> <p>Two researchers recruited and conducted semi-structured interviews with managers and project co-ordinators of community based walking programmes, across the UK, using a purposive sampling frame. Twenty eight interviews were conducted, with community projects targeting participants by age, physical activity status, socio-demographic characteristics (i.e. ethnic group) or by health status. Three case studies were also conducted with programmes aiming to recruit priority groups and also demonstrating innovative recruitment methods. Data analysis adopted an approach using analytic induction.</p> <p>Results</p> <p>Two types of programmes were identified: those with explicit health aims and those without. Programme aims which required targeting of specific groups adopted more specific recruitment methods. The selection of recruitment method was dependent on the respondent’s awareness of ‘what works’ and the resource capacity at their disposal. Word of mouth was perceived to be the most effective means of recruitment but using this approach took time and effort to build relationships with target groups, usually through a third party. Perceived effectiveness of recruitment was assessed by number of participants rather than numbers of the right participants. Some programmes, particularly those targeting younger adult participants, recruited using new social communication media. Where adopted, social marketing recruitment strategies tended to promote the ‘social’ rather than the ‘health’ benefits of walking.</p> <p>Conclusions</p> <p>Effective walking programme recruitment seems to require trained, strategic, labour intensive, word-of-mouth communication, often in partnerships, in order to understand needs and develop trust and motivation within disengaged sedentary communities. Walking promotion professionals require better training and resources to deliver appropriate recruitment strategies to reach priority groups.</p
Changing pattern of the detection of locoregional relapse in breast cancer: the Edinburgh experience
The guidelines for follow-up of breast cancer patients concentrate on the first 3–5 years, with either reduced frequency of visits or discharge after this. They also recommend mammography, but no evidence exists to inform frequency. We analyse treatable relapses in our unit from 1312 patients with early stage breast cancer treated by breast conserving surgery (BCS) and postoperative radiotherapy between 1991 and 1998 to assess appropriateness of the guidelines. A total of 110 treatable relapses were analysed. Treatable relapse developed at 1–1.5% per year throughout follow-up. Forty-eight relapses were in ipsilateral breast, 25 ipsilateral axilla, 35 contralateral breast, 2 both breasts simultaneously. Thirty-seven relapses (33.5%) were symptomatic, 56 (51%) mammographically detected, 15 (13.5%) clinically detected, 2 (2%) diagnosed incidentally. Mammography detected 5.37 relapses per 1000 mammograms. Patients with symptomatic or mammographically detected ipsilateral breast relapse had significantly longer survival from original diagnosis (P=0.0002) and from recurrence (P=0.0014) compared with clinically detected. Treatable relapse occurs at a constant rate for at least 10 years. Clinical examination detects a minority (13.5%). Relapse diagnosed clinically is associated with poorer outcome. Long-term follow-up based on regular mammography is warranted for all patients treated by BCS
Casting for a sovereign role:Socialising an aspirant state in the Scottish independence referendum
This article examines international reactions to Scotland’s 2014 bid for independence as an instance of socialisation of an aspirant state, what we term ‘pre-socialisation’. Building on and contributing to research on state socialisation and role theory, this study proposes a nexus between roles and sovereignty. This nexus has three components: sovereignty itself is a role casted for by an actor; the sovereign role is entangled with the substantive foreign policy roles the actor might play; and the sovereign role implicates the substantive foreign policy roles of other actors. The Scottish debate on independence provides an effective laboratory to develop and explore these theoretical dimensions of pre-socialisation, revealing the contested value and meaning of sovereignty, the possible roles that an independent Scotland could play, and the projected implications for the role of the UK and other international actors. Our analysis of the Scottish case can provide insights for other cases of pre-socialisation and is more empirically significant following the UK’s 2016 referendum to leave the European Union.PostprintPeer reviewe
Aberrant crypt foci in colorectal carcinogenesis. Cell and crypt dynamics
Aberrant crypt foci (ACF) have been identified on the colonic mucosal surface of rodents treated with colon carcinogens and of humans after methylene-blue staining and observation under a light microscope. Several lines of evidence strongly suggest that ACF with certain morphological, histological, cell kinetics, and genetic features are precursor lesions of colon cancer both in rodents and in humans. Thus, ACF represent the earliest step in colorectal carcinogenesis. This paper has the main purpose of reviewing the evidence supporting this view, with particular emphasis on cell and crypt dynamics in ACF. ACF have been used as intermediate biomarkers of cancer development in animal studies aimed at the identification of colon carcinogens and chemopreventive agents. Recently, evidence has also shown that ACF can be effectively employed in chemopreventive studies also in humans
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