20,205 research outputs found
An adult social care compendium of approaches and tools for organisational change
The purpose of this compendium is to support managers working in adult social care to be more knowledgeable about and confident in the application of different approaches and tools relevant to managing change in their organisations. In the compendium an ‘approach to change’ is used to denote an ‘overarching framework that can guide a change process’ and
‘change management tools’ as ‘techniques or templates to understand or support a specific aspect of the change process’. Examples of the latter would be stakeholder mapping exercises, organisational diagnostic methodologies, engagement processes, and direct team based interventions. The compendium does not provide detailed guidance on how to apply each approach and tool, but presents an accessible overview of what each entails, the thinking that lies behind them, and (where available) a reflection on the empirical evidence of their application in practice. Having access to this information will help to demystify the often confusing and
intimidating terminology that surrounds change approaches, and in doing so will enable managers to identify the approaches most relevant to a change they are leading and explore in more depth. Understanding the method being followed will also support individuals who access services and their families to engage on a more equal playing field within a change process. This includes people who access services and their families. While potentially relevant to social care managers working at all levels of an organisation, the compendium is specifically designed for those responsible for a single service (e.g. home care team, residential care home) or team (e.g. care management team), and those who directly manage service and team managers
Evolution of emotions on networks leads to the evolution of cooperation in social dilemmas
We show that the resolution of social dilemmas in random graphs and scale-free networks is facilitated by
imitating not the strategy of better-performing players but, rather, their emotions. We assume sympathy and
envy to be the two emotions that determine the strategy of each player in any given interaction, and we define
them as the probabilities of cooperating with players having a lower and a higher payoff, respectively. Starting
with a population where all possible combinations of the two emotions are available, the evolutionary process
leads to a spontaneous fixation to a single emotional profile that is eventually adopted by all players. However,
this emotional profile depends not only on the payoffs but also on the heterogeneity of the interaction network.
Homogeneous networks, such as lattices and regular random graphs, lead to fixations that are characterized by
high sympathy and high envy, while heterogeneous networks lead to low or modest sympathy but also low envy.
Our results thus suggest that public emotions and the propensity to cooperate at large depend, and are in fact
determined by, the properties of the interaction network
Microscopic heat from the energetics of stochastic phenomena
The energetics of the stochastic process has shown the balance of energy on
the mesoscopic level. The heat and the energy defined there are, however,
generally different from their macroscopic counterpart. We show that this
discrepancy can be removed by adding to these quantities the reversible heat
associated with the mesoscopic free energy.Comment: 4 pages, 0 figur
Threshold Photo/Electro Pion Production - Working Group Summary
We summarize the pertinent experimental and theoretical developments in the
field of pion photo- and electroproduction in the threshold region. We discuss
which experiments and which calculations should be done/performed in the
future.Comment: plain TeX (macro included), 6pp, summary talk presented at the
workshop on "Chiral Dynamics: Theory and Experiments", MIT, July 25-29, 199
Density-Matrix Spectra of Solvable Fermionic Systems
We consider non-interacting fermions on a lattice and give a general result
for the reduced density matrices corresponding to parts of the system. This
allows to calculate their spectra, which are essential in the DMRG method, by
diagonalizing small matrices. We discuss these spectra and their typical
features for various fermionic quantum chains and for the two-dimensional
tight-binding model.Comment: 12 pages and 9 figure
Kaon photoproduction: background contributions, form factors and missing resonances
The photoproduction p(gamma, K+)Lambda process is studied within a
field-theoretic approach. It is shown that the background contributions
constitute an important part of the reaction dynamics. We compare predictions
obtained with three plausible techniques for dealing with these background
contributions. It appears that the extracted resonance parameters drastically
depend on the applied technique. We investigate the implications of the
corrections to the functional form of the hadronic form factor in the contact
term, recently suggested by Davidson and Workman (Phys. Rev. C 63, 025210). The
role of background contributions and hadronic form factors for the
identification of the quantum numbers of ``missing'' resonances is discussed.Comment: 11 pages, 7 eps figures, submitted to Phys. Rev.
Problems with Extraction of the Nucleon to Delta(1232) Photonic Amplitudes
We investigate the model dependence and the importance of choice of database
in extracting the {\it physical} nucleon-Delta(1232) electromagnetic transition
amplitudes, of interest to QCD and baryon structure, from the pion
photoproduction observables. The model dependence is found to be much smaller
than the range of values obtained when different datasets are fitted. In
addition, some inconsistencies in the current database are discovered, and
their affect on the extracted transition amplitudes is discussed.Comment: Revtex, 2 figs., submitted to PR
The Gross-Pitaevskii Equation for Bose Particles in a Double Well Potential: Two Mode Models and Beyond
There have been many discussions of two-mode models for Bose condensates in a
double well potential, but few cases in which parameters for these models have
been calculated for realistic situations. Recent experiments lead us to use the
Gross-Pitaevskii equation to obtain optimum two-mode parameters. We find that
by using the lowest symmetric and antisymmetric wavefunctions, it is possible
to derive equations for a more exact two-mode model that provides for a
variable tunneling rate depending on the instantaneous values of the number of
atoms and phase differences. Especially for larger values of the nonlinear
interaction term and larger barrier heights, results from this model produce
better agreement with numerical solutions of the time-dependent
Gross-Pitaevskii equation in 1D and 3D, as compared with previous models with
constant tunneling, and better agreement with experimental results for the
tunneling oscillation frequency [Albiez et al., cond-mat/0411757]. We also show
how this approach can be used to obtain modified equations for a second
quantized version of the Bose double well problem.Comment: RevTeX, 14 pages, 14 figure
Gauged Dimension Bubbles
Some of the peculiar electrodynamical effects associated with gauged
``dimension bubbles'' are presented. Such bubbles, which effectively enclose a
region of 5d spacetime, can arise from a 5d theory with a compact extra
dimension. Bubbles with thin domain walls can be stabilized against total
collapse by the entrapment of light charged scalar bosons inside the bubble,
extending the idea of a neutral dimension bubble to accommodate the case of a
gauged U(1) symmetry. Using a dielectric approach to the 4d dilaton-Maxwell
theory, it is seen that the bubble wall is almost totally opaque to photons,
leading to a new stabilization mechanism due to trapped photons. Photon
dominated bubbles very slowly shrink, resulting in a temperature increase
inside the bubble. At some critical temperature, however, these bubbles
explode, with a release of radiation.Comment: 14 pages, no figures; to appear in Phys.Rev.
Effects of intervention upon precompetition state anxiety in elite junior tennis players: The relevance of the matching hypothesis
Reproduced with permission of publisher from:
Terry, P., Coakley, L., & Karageorghis, C. Effects of intervention upon precompetition state anxiety in elite junior tennis players: the relevance of the matching hypothesis. Perceptual and Motor Skills, 1995, 81, 287-296. © Perceptual and Motor Skills 1995The matching hypothesis proposes that interventions for anxiety should be matched to the modality in which anxiety is experienced. This study investigated the relevance of the matching hypothesis for anxiety interventions in tennis. Elite junior tennis players (N = 100; Age: M = 13.9 yr., SD = 1.8 yr.) completed the Competitive State Anxiety Inventory-2 before and after one of four randomly assigned intervention strategies approximately one hour prior to competition at a National Junior Championship. A two-factor multivariate analysis of variance (group x time) with repeated measures on the time factor gave no significant main effect by group but indicated significant reductions in somatic anxiety and cognitive anxiety and a significant increase in self-confidence following intervention. A significant group by time interaction emerged for self-confidence. The results question the need to match intervention strategy to the mode of anxiety experienced
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