4,334 research outputs found
IR Monitoring of the Microquasar GRS 1915+105: Detection of Orbital and Superhump Signatures
We present the results of seven years of K-band monitoring of the low-mass
X-ray binary GRS 1915+105. Positive correlations between the infrared flux and
the X-ray flux and X-ray hardness are demonstrated. Analysis of the frequency
spectrum shows that the orbital period of the system is
days. The phase and amplitude of the orbital modulation suggests that the
modulation is due to the heating of the face of the secondary star. We also
report another periodic signature between 31.2 and 31.6 days, most likely due
to a superhump resonance. From the superhump period we then obtain a range on
the mass ratio of the system, .Comment: 16 pages, 6 figures; v2: minor change
A pilot randomised controlled trial to reduce suffering and emotional distress in patients with advanced cancer
Introduction: A pilot trial was carried out to determine if a focussed narrative interview could alleviate the components of suffering and anxiety and depression in advanced cancer patients. InterventionPatients recruited were invited to participate in a focussed narrative interview and reflect on their perspectives on their sense of “meaning”, regarding suffering and their psychological, physical, social and spiritual well being – the emphasis was on allowing the patient to tell their story. Patients were encouraged to share what resources they themselves had utilised in addition to what professional care they may have received, to maintain a sense of well being. Method: Patients with advanced metastatic disease were recruited from hospices in the North West of England – the only exclusion criteria were not being able to understand written and spoken English and a non cancer diagnosis. At recruitment patients were asked to complete a numerical scale for suffering; the Brief Edinburgh Depression Scale, Edmonton Symptom Assessment Scale (ESAS), FACIT Spiritual well being questionnaire, Demographic information was collected and patients were randomised to either the intervention arm of the trial or the usual care arm of the study. Patients in both groups were invited to complete each measure at 2, 4 and 8 weeks. Results: One hundred people were recruited into the study – 49 were randomised to intervention group and 51 to control group. The median age of patients was 66 years age range (31–89 years) and 68% of patients were female. At baseline the ECOG performance of 75% of patients recruited was 1 or 2. The median survival of all patients in the study was 169.5 days (range 10 days to still alive at end of study). There was no significant difference at any timepoint in scores on suffering measure between intervention group and control group. At each time point the intervention demonstrated mean improvement in scores for depression and anxiety on ESAS – the greatest changes for both depression and anxiety were seen at 4 weeks. Conclusion: This pilot randomised controlled trial of a focussed narrative intervention demonstrated an improvement in mean changes in scores for depression and anxiety at 2, 4, and 8 weeks. We suggest this intervention may have beneficial effects on depression and anxiety, but a larger powered trial is required to determine the full effects
Extent of palliative care need in the acute hospital setting: A survey of two acute hospitals in the UK
Background: In common with international health policy, The End of Life Care Strategy for England has highlighted the delivery of high quality palliative care in the acute hospital setting as an area of priority.
Aim: The aim of this study was to explore the extent of palliative care need in the acute hospital setting, and to explore agreement between different sources in the identification of patients with palliative care need.
Design: A cross-sectional survey of palliative care need was undertaken in two UK acute hospitals. Hospital case notes were examined for evidence of palliative care need according to Gold Standards Framework (GSF) prognostic indicator criteria. Medical and nursing staff were asked to identify patients with palliative care needs. Patients (or consultees) completed assessments of palliative care need.
Participants: Of a total in-patient population of 1359, complete datasets were collected for 514 patients/consultees.
Results: 36.0% of patients were identified as having palliative care needs according to GSF criteria. Medical staff identified 15.5% of patients as having palliative care needs, and nursing staff 17.4% of patients. Patient self-report data indicated that 83.2% of patients meeting GSF criteria had palliative care needs.
Conclusion: The results reveal that according to the GSF prognostic guide, over a third of hospital in-patients meet the criteria for palliative care need. Consensus between medical staff, nursing staff and the GSF was poor regarding the identification of patients with palliative care needs. This has significant implications for patient care, and draws into question the utility of the GSF in the hospital setting
Effects of the Fibrolytic Enzyme Cattle-ASE?äó on Growth of Prepuberal Romosinuano Crossbred Heifers
Last updated: 6/12/200
Custom-molded foot-orthosis intervention and multi-segment medial foot kinematics during walking
Context: Foot-orthosis (FO) intervention to prevent and treat numerous lower extremity injuries is widely accepted clinically. However, the results of quantitative gait analyses have been equivocal. The foot models used, participants receiving intervention, and orthoses used might contribute to the variability.
Objective: To investigate the effect of a custom-molded FO intervention on multisegment medial foot kinematics during walking in participants with low-mobile foot posture.
Design: Crossover study.
Setting: University biomechanics and ergonomics laboratory. Patients or Other
Participants: Sixteen participants with low-mobile foot posture (7 men, 9 women) were assigned randomly to 1 of 2 FO groups. Intervention(s): After a 2-week period to break in the FOs, individuals participated in a gait analysis that consisted of 5 successful walking trials (1.3 to 1.4 m/s) during no-FO and FO conditions.
Main Outcome Measure(s): Three-dimensional displacements during 4 subphases of stance (loading response, mid- stance, terminal stance, preswing) were computed for each multisegment foot model articulation.
Results: Repeated-measures analyses of variance (ANO- VAs) revealed that rearfoot complex dorsiflexion displacement during midstance was greater in the FO than the no-FO condition (F114 = 5.24, P=.O4, partial r|2 = 0.27). Terminal stance repeated-measures ANOVA results revealed insert-by-insert condition interactions for the first metatarsophalangeal ¡oint complex (F114=7.87, P=.O1, partial if = 0.36). However, additional follow-up analysis did not reveal differences between the no-FO and FO conditions for the balanced traditional ortho- sis (F, 14 = 4.32, P = .O8, partial if = 0.38) or full-contact orthosis (F1i14 = 4.10, P=.O8, partial if = 0.37).
Conclusions: Greater rearfoot complex dorsiflexion during midstance associated with FO intervention may represent improved foot kinematics in people with low-mobile foot postures. Furthermore, FO intervention might partially correct dysfunctional kinematic patterns associated with low-mobile foot postures.
Pamela: development of the RF system for a non-relativistic non-scaling FFAG
The PAMELA project(Particle Accelerator For MEdical
Applications) currently consists of the design of a particle
therapy facility. The project, which is in the design phase,
contains Non-Scaling FFAG, particle accelerator capable
of rapid beam acceleration, giving a pulse repetition rate of
1kHz, far beyond that of a conventional synchrotron. To
realise the repetition rate, a key component of the accelerator
is the rf accelerating system. The combination of a high
energy gain per turn and a high repetition rate is a significant
challenge. In this paper, options for the rf system of
the proton ring and the status of development are presented
Stocker Performance of Romosinuano Crossbred Steers Grazing Bermudagrass and Receiving a Supplement
Last updated: 6/12/200
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