15,718 research outputs found
Validation of the Dutch Freiburg mindfulness inventory in patients with medical illness
Most validation studies of the Freiburg Mindfulness Inventory (FMI) involved healthy subjects. Validation in patients who suffer from a life-threatening medical illness is needed, to investigate the FMI’s validity in medical psychology research and practice. Psychometric properties of the Dutch FMI were examined in two patient groups of two different studies: (Sample 1) cardiac patients (n = 114, M age = 56 ± 7 years, 18% women) and (Sample 2) severely fatigued cancer survivors (n = 158, M age = 50 ± 10 years, 77% women). Confirmatory factor analysis (studied only in Sample 2) provided good fit for the two-factor solution (Acceptance and Presence), while the one-factor solution provided suboptimal fit indices. Internal consistency was good for the whole scale in both samples (Sample 1 α = .827 and Sample 2 α = .851). The two-factor model showed acceptable to good internal consistency in Sample 2 (Presence: α = .823; Acceptance α = .744), but poor to acceptable in Sample 1 (Presence subscale: α = .577, Acceptance subscale: α = .791). Clinical sensitivity was supported in both samples, and construct validity (studied only in Sample 1) was acceptable. The Dutch FMI is an acceptable instrument to measure mindfulness in patients who experienced a life-threatening illness in a Dutch-speaking populatio
Using smartphone-based ecological momentary assessment and personalized feedback for patients with chronic cancer-related fatigue:A proof-of-concept study
Introduction Chronic cancer-related fatigue (CCRF) is a complex multidimensional problem warranting person-centered care. Providing patients and therapists personalized feedback based on network analysis applied to ecological momentary assessment (EMA) data could facilitate case conceptualization in psycho-oncological care. The aim was to explore patients' and therapists' experiences of using an EMA app and personalized feedback based on network theory to aid case conceptualization in psycho-oncological care. Methods A n = 5 proof-of-concept study was implemented in routine psycho-oncological care. We purposively selected adult cancer patients suffering from severe CCRF who were on the waitlist for psycho-oncological care. During a 3-week period participants filled out the EMA app Energy InSight (fatigue, mood, activity, responding, and context) five times a day. Participants received a descriptive and network feedback report, which they reflected upon during the first therapy sessions. Thematic analysis was used to analyze user experiences. Results Patients experienced that filling out the Energy InSight app, as well as receiving descriptive and network-based personalized feedback provided them with insight into their CCRF. Although therapists experienced the discussion of network feedback as challenging, it facilitated the case conceptualization. Discussion Using EMA during waitlist for psychological care seemed feasible. Patients experienced beneficial effects from filling out the EMA app and talking over the personalized feedback reports, which in turn aided case conceptualization and personalized care. Based on this evaluation, an improved version of the Energy InSight app and a therapist training for providing network feedback is developed for implementation in psycho-oncological care
Associated hyperon-kaon production via neutrino-nucleus scattering
We present the investigation of the neutrino-induced strangeness associated
production on nuclei in the relativistic plane wave impulse approximation
(RPWIA) framework at the intermediate neutrino energies. In this study, the
elementary hadronic weak amplitudes are embedded inside the nuclear medium for
the description of the exclusive channels of neutrino-nucleus interactions.
These amplitudes are extracted using a model-dependent evaluation of the
hadronic vertex using the Born term approximation in which the application of
the Cabibbo V-A theory and SU(3) symmetry are assumed to be valid. The nuclear
effects are included via the bound state wavefunctions of the nucleon obtained
from the relativistic mean field (RMF) models. Two kinematics settings are used
to examine various distributions of the differential cross section in the rest
frame of the target nuclei. The numerical results are obtained for the
neutrino-induced charged-current (CC) \,-production on bound
neutrons in and orbitals of C. The angular
distributions are forward peaked under both kinematic settings, whereas under
the quasifree setting the cross sections tend mimic the missing momentum
distribution of the bound nucleon inside the nucleus.Comment: This article is submitted to International Journal of Modern Physics
E (nuclear physics) and accepted on 31 October 20l
3R Kenya Issue Brief 001 : Targeting medium-sized commercial family farms: A pathway for development
Γ-stochastic neighbour embedding for feed-forward data visualization
t-distributed Stochastic Neighbour Embedding (t-SNE) is one of the most popular nonlinear dimension reduction techniques used in multiple application domains. In this paper we propose a variation on the embedding neighbourhood distribution, resulting in Γ-SNE, which can construct a feed-forward mapping using an RBF network. We compare the visualizations generated by Γ-SNE with those of t-SNE and provide empirical evidence suggesting the network is capable of robust interpolation and automatic weight regularization
Two-gap superconductivity in MgB: clean or dirty?
A large number of experimental facts and theoretical arguments favor a
two-gap model for superconductivity in MgB. However, this model predicts
strong suppression of the critical temperature by interband impurity scattering
and, presumably, a strong correlation between the critical temperature and the
residual resistivity. No such correlation has been observed. We argue that this
fact can be understood if the band disparity of the electronic structure is
taken into account, not only in the superconducting state, but also in normal
transport
First-Order Transition in the Magnetic Vortex Matter in Superconducting MgB2 Tuned by Disorder
International audienceThe field-driven transition from an ordered Bragg glass to a disordered vortex phase in singlecrystalline MgB2 is tuned by an increasing density of point defects, introduced by electron irradiation. The discontinuity observed in magnetization attests to the first-order nature of the transition. The temperature and defect density dependences of the transition field point to vortex pinning mediated by fluctuations in the quasiparticle mean free path, and reveal the mechanism of the transition in the absence of complicating factors such as layeredness or thermal fluctuations
Deuterium fractionation on interstellar grains studied with modified rate equations and a Monte Carlo approach
The formation of singly and doubly deuterated isotopomers of formaldehyde and
of singly, doubly, and multiply deuterated isotopomers of methanol on
interstellar grain surfaces has been studied with a semi-empirical modified
rate approach and a Monte Carlo method in the temperature range 10-20 K.
Agreement between the results of the two methods is satisfactory for all major
and many minor species throughout this range. If gas-phase fractionation can
produce a high abundance of atomic deuterium, which then accretes onto grain
surfaces, diffusive surface chemistry can produce large abundances of
deuterated species, especially at low temperatures and high gas densities.
Warming temperatures will then permit these surface species to evaporate into
the gas, where they will remain abundant for a considerable period. We
calculate that the doubly deuterated molecules CHD2OH and CH2DOD are
particularly abundant and should be searched for in the gas phase of
protostellar sources. For example, at 10 K and high density, these species can
achieve up to 10-20% of the abundance of methanol.Comment: 27 pages, 3 figures, Planetary and Space Science, in pres
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