Mobile three-dimensional visualisation technologies for clinician-led fall prevention assessments

Falls are a major health concern and pose a significant health challenge to an ageing population. The assistive equipment provision process (AEPP) is carried out with patients to identify and mitigate intrinsic and extrinsic fall risk factors within the home environment. However, existing technology-based falls research has concentrated on intrinsic risk factors and neglected to develop applications that focus on extrinsic factors such as the accurate measurement and assessment of the home environment and prescription of appropriate assistive equipment/home adaptations. Currently, over 50% of installed assistive equipment is abandoned by the patient. This paper presents a 3D measurement aid prototype (3D-MAP) application, which provides enhanced AEPP measurement and assessment guidance to clinicians via the use of 3D visualisation technologies. The aim of this study is to explore the perceptions of clinicians with regards to challenges and opportunities of utilising 3D-MAP to support the AEPP in practice. Ten occupational therapists participated in interactive sessions with 3D-MAP, utilising the think-aloud method and semi-structured interviews. Usability of the application was measured with the System Usability Scale (SUS). Results showed participants scored 3D-MAP as ‘excellent’ and agreed strongly with items relating to the usability and learnability of the application. The qualitative analysis identified opportunities for improving existing practice, including, improved interpretation/recording measurements; enhanced collaborative practice within the AEPP. Future research is needed to determine the clinical utility of this application compared with 2D counterpart paper-based guidance leaflets

Two-neutron correlations at small relative momenta in 40^{40}Ar + 197^{197}Au collisions at 60 MeV/nucleon

Two-neutron correlation functions are measured in the 40Ar + 197Au reaction at 60 MeV/nucleon to study the space-time characteristics of neutron emitting sources. The source temperatures and velocities are deduced by fitting the single-neutron energy spectra with a three-source model. A comparison of the correlation data with the predictions of the model of moving sources and with the dynamical Landau-Vlasov model suggests the relevance of a multisource description. Particular care has been paid to the influence of the relative source abundance on the shape of the correlation function. (Springer

Influence of the Coulomb field on charged particle emission in Ar + Ni reaction at 77 MeV/u

Ar+Ni collisions at 77 MeV/u were studied in the experiment E286 performed at GANIL. An important advantage of this experiment was an application of the neutron detector DEMON for registration of both neutral and charged particles. This feature allows to compare characteristics of neutrons and protons detected by the same detector and gives a possibility to determine the influence of the Coulomb field on the proton emission. Estimation of a charge of the emitting source was performed by comparing energy spectra of neutrons and protons detected under identical experimental conditions. The experimental results were compared with the prediction of the SIMON model

Correlations of neutral and charged particles in 40^{40}Ar- 58^{58}Ni reaction at 77 MeV/u

The measurement of the two-particle correlation function for different particle species allows to obtain information about the development of the particle emission process: the space-time properties of emitting sources and the emission time sequence of different particles. The single-particle characteristics and two-particle correlation functions for neutral and charged particles registered in forward direction are used to determine that the heavy fragments (deuterons and tritons) are emitted in the first stage of the reaction (pre-equilibrium source) while the majority of neutrons and protons originates from the long-lived quasi-projectile. The emission time sequence of protons, neutrons and deuterons has been obtained from the analysis of non-identical particle correlation functions

Data on light-fragment correlations in 40^{40}Ar + 58^{58}Ni at 77 MeV/nucleon

Results of the experimental study of p 4 He, d 3 He, dT, pT, p 3 He and, for the first time, nT, n 3 He, n 4 He correlations in the region of small relative momenta are presented. The data analysis provides an estimate of the effective source size or emission time. (Springer

Influence of the Coulomb field on charged particle emission in Ar + Ni reaction at 77 MeV/u

Ar+Ni collisions at 77 MeV/u were studied in the experiment E286 performed at GANIL. An important advantage of this experiment was an application of the neutron detector DEMON for registration of both neutral and charged particles. This feature allows to compare characteristics of neutrons and protons detected by the same detector and gives a possibility to determine the influence of the Coulomb field on the proton emission. Estimation of a charge of the emitting source was performed by comparing energy spectra of neutrons and protons detected under identical experimental conditions. The experimental results were compared with the prediction of the SIMON model [D. Durand, Nucl. Phys. A541, 266 (1992)] and Landau-Vlasov model [Z. Basrak, Ph. Eudes, P. Abgrall, F. Haddad. F. Sébille, Nucl, Phys. A624, 472 (1997)].SCOPUS: cp.pinfo:eu-repo/semantics/publishe