15,337 research outputs found
Benefits and losses: a qualitative study exploring healthcare staff perceptions of teamworking
ABSTRACT
Objectives: To examine staff perceptions of teamworking
practice in the field of stroke care.
Design: Qualitative interview study.
Setting: Three teams providing care to patients with
stroke across a typical care pathway of acute hospital
ward, specialist stroke unit, and community rehabilitation.
Participants: 37 staff members from a range of
professions.
Main outcome measures: Healthcare staff perceptions
of teamworking.
Results: Through detailed coding and analysis of the
transcripts, five perceptions regarding the impact of
teamworking on staff and patients were identified. These
were: (1) mutual staff support, (2) knowledge and skills
sharing, (3) timely intervention/discharge, (4) reduced
individual decision-making and responsibility and (5)
impact on patient contact time.
Conclusions: Teamworking practice may be associated
with a number of perceived benefits for staff and patient
care; however, the potential for losses resulting from
reduced patient contact time and ill-defined responsibility
needs further investigation
Corner transfer matrices in statistical mechanics
Corner transfer matrices are a useful tool in the statistical mechanics of
simple two-dimensinal models. They can be very effective way of obtaining
series expansions of unsolved models, and of calculating the order parameters
of solved ones. Here we review these features and discuss the reason why the
method fails to give the order parameter of the chiral Potts model.Comment: 18 pages, 4 figures, for Proceedings of Conference on Symmetries and
Integrability of Difference Equations. (SIDE VII), Melbourne, July 200
New Q matrices and their functional equations for the eight vertex model at elliptic roots of unity
The Q matrix invented by Baxter in 1972 to solve the eight vertex model at
roots of unity exists for all values of N, the number of sites in the chain,
but only for a subset of roots of unity. We show in this paper that a new Q
matrix, which has recently been introduced and is non zero only for N even,
exists for all roots of unity. In addition we consider the relations between
all of the known Q matrices of the eight vertex model and conjecture functional
equations for them.Comment: 20 pages, 2 Postscript figure
The order parameter of the chiral Potts model
An outstanding problem in statistical mechanics is the order parameter of the
chiral Potts model. An elegant conjecture for this was made in 1983. It has
since been successfully tested against series expansions, but as far as the
author is aware there is as yet no proof of the conjecture. Here we show that
if one makes a certain analyticity assumption similar to that used to derive
the free energy, then one can indeed verify the conjecture. The method is based
on the ``broken rapidity line'' approach pioneered by Jimbo, Miwa and
Nakayashiki.Comment: 29 pages, 7 figures. Citations made more explicit and some typos
correcte
Integrability of -oscillator lattice model
A simple formulation of an exactly integrable -oscillator model on two
dimensional lattice (in 2+1 dimensional space-time) is given. Its
interpretation in the terms of 2d quantum inverse scattering method and nested
Bethe Ansatz equations is discussed.Comment: Talk given at the conference ``New frontiers in exactly solved
models'', ANU, July 21-22, 200
Water quality monitor
The preprototype water quality monitor (WQM) subsystem was designed based on a breadboard monitor for pH, specific conductance, and total organic carbon (TOC). The breadboard equipment demonstrated the feasibility of continuous on-line analysis of potable water for a spacecraft. The WQM subsystem incorporated these breadboard features and, in addition, measures ammonia and includes a failure detection system. The sample, reagent, and standard solutions are delivered to the WQM sensing manifold where chemical operations and measurements are performed using flow through sensors for conductance, pH, TOC, and NH3. Fault monitoring flow detection is also accomplished in this manifold assembly. The WQM is designed to operate automatically using a hardwired electronic controller. In addition, automatic shutdown is incorporated which is keyed to four flow sensors strategically located within the fluid system
Analyticity and Integrabiity in the Chiral Potts Model
We study the perturbation theory for the general non-integrable chiral Potts
model depending on two chiral angles and a strength parameter and show how the
analyticity of the ground state energy and correlation functions dramatically
increases when the angles and the strength parameter satisfy the integrability
condition. We further specialize to the superintegrable case and verify that a
sum rule is obeyed.Comment: 31 pages in harvmac including 9 tables, several misprints eliminate
Yang-Baxter R operators and parameter permutations
We present an uniform construction of the solution to the Yang- Baxter
equation with the symmetry algebra and its deformations: the
q-deformation and the elliptic deformation or Sklyanin algebra. The R-operator
acting in the tensor product of two representations of the symmetry algebra
with arbitrary spins and is built in terms of products of
three basic operators which are
constructed explicitly. They have the simple meaning of representing elementary
permutations of the symmetric group , the permutation group of
the four parameters entering the RLL-relation.Comment: 22 pages LaTex, comments added, version to be published in Nucl.
Phys.
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