10,056 research outputs found
Can using a communication tool within the emergency department enhance verbal interactions between nurses and patients with moderate cognitive impairment related to dementia?
No full textAcute biomechanical responses to wearing a controlled ankle motion (CAM) walker boot during walking
No full textBackground Controlled ankle motion (CAM) boots are often prescribed during the rehabilitation of lower limb injuries and pathologies to reduce foot and ankle movement and loading whilst allowing the patient to maintain normal daily function. Research question The aim of this study was to quantify the compensatory biomechanical mechanisms undergone by the ipsilateral hip and knee joints during walking. In addition, the compensatory mechanisms displayed by the contralateral limb were also considered. Methods Twelve healthy participants walked on an instrumented treadmill at their preferred walking speed. They underwent kinematic and kinetic analysis during four footwear conditions: normal shoes (NORM), a Malleo Immobil Air Walker on the right leg (OTTO), a Rebound® Air Walker on the right leg with (EVEN) and without (OSS) an Evenup Shoelift™ on the contralateral leg. Results CAM boot wear increased the relative joint contribution to total mechanical work from the ipsilateral hip and knee joints (p < 0.05), which was characterised by increased hip and knee abduction during the swing phase of the gait cycle. EVEN increased the absolute work done and relative contribution of the contralateral limb. CAM boot wear reduced walking speed (p < 0.05), which was partially compensated for during EVEN. Significance The increased hip abduction in the ipsilateral leg was likely caused by the increase in effective leg length and limb mass, which could lead to secondary site complications following prolonged CAM boot wear. Although prescribing an even-up walker partially mitigates these compensatory mechanisms, adverse effects to contralateral limb kinematics and kinetics (e.g., elevated knee joint work) should be considered
Rayleigh number dependence of the Archimedes number dependent large-scale flow structure formation in mixed convection
No full textWe report on experimental investigations of large-scale flow structure formation in mixed convection. We characterize the flow field by measuring the velocity fields within a rectangular model room using 2D2C PIV. The control parameters are the Reynolds number Re, the Rayleigh number Ra and the Prandtl number Pr. All parameters are linked through the Archimedes number Ar. In 6.4x10-2 ≤ Ar ≤ 1.39x101, 4.2x103 ≤ Re ≤ 6.35x104 and Ra = 3.1x107, Ra = 1.8x108 and Pr = 0.713 we found flow 3 different flow structures. While keeping Ra and Pr constant and varying Ar through Re variations, we found an Ar dependence of the largescale flow structure formation within 6.4x10-2 ≤ Ar ≤ 1.39x101. Furthermore, we found a Ra dependence of the structure formation, which shifts the transition points between the structures to higher Archimedes numbers and reduces the mean velocities within the investigated domain
The campaign for democratic socialism 1960-1964.
No full textPhDIn early 1960 it seemed likely that the official Labour
Party defence policy would be defeated by a unilateralist
resolution at the Scarborough Conference. In response to
this possibility the Campaign for Democratic Socialism,
or CDS, was established.
The CDS projected the image of a grass-roots movement
inspired by Gaitskell's "fight and fight again" speech.
But it was run by a Campaign Committee which included
leading members of the Party like Tony Crosland, Roy
Jenkins and Patrick Gordon Walker, as well as less well
known members like Bill Rodgers, Dick Taverne, Philip
Williams, Brian Walden, Denis Howell and David Marquand.
This highly talented group launched an elaborate and
successful lobbying, publicity and briefing operation
which was influential in overturning the unilateralist
vote at the Blackpool Conference of 1961. After Blackpool
the Campaign helped many of its leading members find
seats in the House of Commons while continuing to put the
"revisionist" case through its newspaper Campaign.
The importance of the CDS in the history of the Labour
Party is, primarily, as the first internal pressure group
organised by the right of the Party. It was also the
first internal Party group to use such sophisticated
lobbying techniques. Moreover, the subsequent careers of
the leading members of the Campaign influenced the
development of the Labour Party. The CDS was an important
formative political action for many of them. Finally many
of the CDS supporters set-up or joined the SDP when it
was launched
Reynolds numbers near the ultimate state of turbulent Rayleigh-Bénard convection
No full textWe report on measurements of the mean-flow Reynolds number ReU and the rms fluctuation Reynolds number ReV in turbulent Rayleigh-Bénard convection as a function of the Rayleigh number Ra for 4 x 1011 < Ra < 2 1014 and Pr ' 0:8. Both can be described by the same power law with an effective exponent = 0:44, in agreement with predictions for ReU but in disagreement with predictions for ReV
Logarithmic variance profiles and the corresponding f-1 spectra of temperature fluctuations in turbulent Rayleigh-Bénard convection
No full textWe report experimental results for the temperature variance 2(z) and the corresponding frequency spectra P(f) in turbulent Rayleigh-Bénard convection (RBC) in a cylindrical sample of aspect ratioT= D/L = 1:00 (D = 1:12 m is the diameter and L = 1:12 m the height). The measurements were conducted in the Rayleigh-number range 1011 < Ra < 1:35 1014 and Pr ' 0:8. For Ra = 1:35x1014, 2(z) could be described well by a logarithmic dependence on the vertical position z in a range of z 1 < z < z 2 with z 1 ' 70 and z 2 = 0:1L. Here L=(2Nu) is the thickness of a thin thermal sublayer adjacent to the horizontal plate where the heat flux (denoted by the Nusselt number Nu) is carried mostly by thermal diffusion. In the log layer, we found that the temperature spectra had a significant frequency range over which P(f) f with close to 1. As Ra decreased, increased so that the log layer became thinner. At Ra = 2:05 1011, z 2 < z 1 and therefore there was no range for a log layer. Correspondingly, the temperature spectrum near the horizontal plate did not have the f1 scaling form either
Testing of a GIS model of Eucalyptus largiflorens health on a semiarid, saline floodplain
No full textTaylor, Peter ; Walker, Glen ; Hodgson, Geoff ; Hatton, Thomas ; Correll, Ra
Catástrofes naturales en América del Sur(hasta c. 1820)Recuento bibliográfico
No full textoai:revista.cbc.org.pe:article/1En este texto, dos especialistas hacen una revisión exhaustiva de la producción académica (principalmente en libros y artículos), sobre los desastres “naturales“ ocurridos en la época colonial, especialmente en la zona andina y América del Sur.Originalmente publicado en Oxford Bibliographies (en una versión más extensa), Schwartz y Walker evalúan y discuten el creciente interés en la historia del clima y del medio ambiente, corrientes relativamente recientes, pero también obras clásicas sobre los terremotos, hambrunas, inundaciones y otras catástrofes. Además, el artículo incorpora colecciones de fuentes y otras contribuciones
What Motivations Influence Rheumatoid Arthritis (RA) Patients in their Decision to Participate in Clinical Trials?
No full textAim / purpose: To investigate what motivates rheumatoid arthritis (RA) patients in their decision to enter clinical trials. We aimed to determine whether RA patients are motivated by one specific factor, or if RA patients’ motivations were more complex and due to a combination of factors. Responses from Clinical Research Facility (CRF) patients were compared with responses from those patients seen for trials in rheumatology departments to determine if motivations differed between the two patient groups. Methodology: 37 patients currently participating in RA clinical trials across two sites in the north-east of England were issued with a self-completion questionnaire following informed consent. Questionnaires were identical, and included demographic questions and a series of statements to determine patients’ motivations for entering their clinical trial. Results and Conclusions: Mean responses for both altruistic statements (“to improve scientific and medical knowledge” and “to help others”), as well as “the potential for improved health” and “because I trust the medical staff that treat me” all fell between the values for “agree” and “strongly agree”. The whole group felt that they were not pressurised to participate by research staff. Responses between CRF patients and rheumatology department patients showed significant difference (p=0.05) with 4 of the 15 statements. “Best choice of treatment”, “more regular follow-ups”, “to get medication not otherwise available on the NHS” and “potential for improved health” were all show to be more strongly agreed as motivating factors amongst the CRF group of patients compared to the rheumatology department patients. Results suggest a combination of altruistic, self interest and external influences affect RA patients’ decision to participate in clinical trials. Motivations of self interest appear to be more important amongst CRF patients compared to those patients seen in rheumatology departments. It is hoped that this information will aid recruitment into trials across both departments
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