389 research outputs found
Anisotropic flow from hard partons in ultra-relativistic nuclear collisions
Anisotropies of hadronic distribution in nuclear collisions are used for
determination of properties of the nuclear matter. At the LHC it is important
to account for the contribution to the flow due to momentum transferred from
hard partons to the quark-gluon plasma.Comment: 4 pages, proceedings of PANIC 2014 conference, Hamburg, Aug.201
Rapidity correlations of protons from a fragmented fireball
We investigate proton rapidity correlations for a fireball that fragments due
to non-equilibrium effects at the phase transition from deconfined to hadronic
phase. Such effects include spinodal fragmentation in case of first order phase
transition at lower collision energies, and cavitation due to sudden rise of
the bulk viscosity at the crossover probed at RHIC and the LHC. Our study is
performed on samples of Monte Carlo events. Correlation function in relative
rapidity appears to be a sensitive probe of fragmentation. We show that
resonance decays make the strength of the correlation even stronger.Comment: 7 pages, 6 figure
Observables of non-equilibrium phase transition
A rapidly expanding fireball which undergoes first-order phase transition
will supercool and proceed via spinodal decomposition. Hadrons are produced
from the individual fragments as well as the left-over matter filling the space
between them. Emission from fragments should be visible in rapidity
correlations, particularly of protons. In addition to that, even within narrow
centrality classes, rapidity distributions will be fluctuating from one event
to another in case of fragmentation. This can be identified with the help of
Kolmogorov-Smirnov test. Finally, we present a method which allows to sort
events with varying rapidity distributions in such a way, that events with
similar rapidity histograms are grouped together.Comment: contribution to NICA white paper, 5 pages, revised version with minor
corrections, mainly languag
Fluctuating shapes of the fireballs in heavy-ion collisions
We argue that energy and momentum deposition from hard partons into
quark-gluon plasma induces an important contribution to the final state hadron
anisotropies. We also advocate a novel method of Event Shape Sorting which
allow to analyse the azimuthal anisotropies of the fireball dynamics in more
detail. A use of the method in femtoscopy is demonstrated.Comment: contribution to Proceedings of the XXIV Baldin seminar on high energy
physics problems (Relativistic Nuclear Physics and Quantum Chromodynamics),
Sept. 17-22, 2018, Dubna, Russia, 6 page
Demand for community-based Case Management in Austria - a qualitative analysis
BACKGROUND: The number of people with complex nursing and care needs living in their own homes is increasing. The implementation of Case and Care Management has shown to have a positive effect on unmet care needs. Research on and implementation of Case and Care Management in the community setting in Austria is limited. This study aimed to understand the changes and challenges of changing care needs by mobile nurses and to evaluate the need for Case Management in mobile care organizations by investigating the evolution of mobile care nurses‘task profiles and the challenges in working in a dynamic field with changing target groups and complexifying care needs. METHODS: A qualitative study with reductive-interpretative data analysis consisting of semi-structured focus groups was conducted. Community care nurses, head nurses, and managers of community mobile care units as well as discharge managers of a community hospital (n = 24) participated in nine qualitative, semi-structured focus groups. The recorded focus groups were transcribed and analyzed using qualitative content analysis. RESULTS: The analysis revealed three main categories: the complexity of the case, innerinstitutional frameworks, and interinstitutional collaboration, which influence the perception of need for further development in the direction of Case and Care Management. Feelings of overwhelmedness among nurses were predominantly tied to cases that presented with issues beyond healthcare such as legal, financial, or social that necessitated communication and collaboration across multiple care providers. CONCLUSIONS: Care institutions need to adapt to changing and increasingly complex care needs that necessitate cooperation between organizations within and across the health and social sectors. A key facilitator for care coordination and the adequate service provision for complex care needs are multidisciplinary institutional networks, which often remain informal, leaving nurses in the role of petitioner without equal footing. Embedding Case and Care Management in the community has the potential to fill this gap and facilitate flexible, timely, and coordinated care across multiple care providers. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1186/s12912-021-00775-0
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