113 research outputs found
Mechanisms to strengthen accountability and oversight within municipalities, with specific reference to the Municipal Public Accounts Committee and the Audit Committee of Mangaung Metropolitan Municipality
Published ArticlePublic accountability is, to an increasing extent, becoming one of the main requirements of good governance in all spheres of government. Ijeoma and Sambumbu (2013:282) maintain that effective accountability and oversight result in improved good corporate governance, effective management of public finances and effective service delivery. Thornhill (2015:79) states that accountability refers to âa statutory obligation to provide for independent and impartial observers holding the right of reporting their findings at the highest levels of state, any available information about financial administration which they may requestâ. On the other hand, oversight entails the proactive control mechanisms initiated by the legislature for the executive and administrative organs of state to encourage compliance with the statutory and legislative frameworks, in order to ensure effective delivery on agreed objectives for the achievement of government priorities (South African Legislative Sector, 2008:4). This article seeks to determine what oversight and accountability mechanisms are currently applied within municipalities. For the purpose of this article the mechanisms to promote accountability and oversight within municipalities, with specific reference to the Municipal Public Accounts Committee (MPAC) and Audit Committee of Mangaung Metropolitan Municipality, will be discussed, followed by a discussion of the current challenges of accountability and oversight within municipalities. The article further aims to make specific recommendations to strengthen accountability and oversight within municipalities in the Free State Province
Holography and Fermions at a Finite Chemical Potential
We review the Sakai-Sugimoto model of holographic QCD at zero temperature and
finite chemical potential, comparing the results to those expected at
large- QCD, and those in a closely related holographic model. We find that
as the baryon chemical potential is increased above a critical value, there is
a phase transition to a nuclear matter phase, the details of which depend on
the model. We argue that the nuclear matter phase is necessarily inhomogeneous
to arbitrarily high density, which suggests an explanation of the "chiral
density wave" instability of the quark Fermi surface in large- QCD. Some
details of the instanton distribution in the holographic dual are reminiscent
of a Fermi surface. This short manuscript summarizes a talk given by M.R. at
"Theory Canada 4" conference, and is based largely (but not entirely) on the
results of \cite{Rozalietal2008}.Comment: 11 pages, 1 figur
Mechanisms to strengthen accountability and oversight within municipalities, with specific reference to the Municipal Public Accounts Committee and the Audit Committee of Mangaung Metropolitan Municipality
Public accountability is, to an increasing extent, becoming one of the main
requirements of good governance in all spheres of government. Ijeoma and
Sambumbu (2013:282) maintain that effective accountability and oversight result
in improved good corporate governance, effective management of public finances
and effective service delivery. Thornhill (2015:79) states that accountability refers to
âa statutory obligation to provide for independent and impartial observers holding
the right of reporting their findings at the highest levels of state, any available
information about financial administration which they may requestâ. Oversight
entails the proactive control mechanisms initiated by the legislature for the executive
and administrative organs of state to encourage compliance with the statutory and
legislative frameworks, in order to ensure effective delivery on agreed objectives for
the achievement of government priorities (South African Legislative Sector 2008:4). This article determines what oversight and accountability mechanisms are currently
applied within municipalities. For the purpose of this article the mechanisms to
promote accountability and oversight within municipalities, with specific reference to
the Municipal Public Accounts Committee (MPAC) and Audit Committee of Mangaung
Metropolitan Municipality, will be discussed. This will be followed by a discussion
of the current challenges of accountability and oversight within municipalities. The
article further aims to make specific recommendations to strengthen accountability
and oversight within municipalities in the Free State Province
Mechanisms to strengthen accountability and oversight within municipalities, with specific reference to the Municipal Public Accounts Committee and the Audit Committee of Mangaung Metropolitan Municipality
Public accountability is, to an increasing extent, becoming one of the main
requirements of good governance in all spheres of government. Ijeoma and
Sambumbu (2013:282) maintain that effective accountability and oversight result
in improved good corporate governance, effective management of public finances
and effective service delivery. Thornhill (2015:79) states that accountability refers to
âa statutory obligation to provide for independent and impartial observers holding
the right of reporting their findings at the highest levels of state, any available
information about financial administration which they may requestâ. Oversight
entails the proactive control mechanisms initiated by the legislature for the executive
and administrative organs of state to encourage compliance with the statutory and
legislative frameworks, in order to ensure effective delivery on agreed objectives for
the achievement of government priorities (South African Legislative Sector 2008:4). This article determines what oversight and accountability mechanisms are currently
applied within municipalities. For the purpose of this article the mechanisms to
promote accountability and oversight within municipalities, with specific reference to
the Municipal Public Accounts Committee (MPAC) and Audit Committee of Mangaung
Metropolitan Municipality, will be discussed. This will be followed by a discussion
of the current challenges of accountability and oversight within municipalities. The
article further aims to make specific recommendations to strengthen accountability
and oversight within municipalities in the Free State Province
Horizon energy and angular momentum from a Hamiltonian perspective
Classical black holes and event horizons are highly non-local objects,
defined in terms of the causal past of future null infinity. Alternative,
(quasi)local definitions are often used in mathematical, quantum, and numerical
relativity. These include apparent, trapping, isolated, and dynamical horizons,
all of which are closely associated to two-surfaces of zero outward null
expansion. In this paper we show that three-surfaces which can be foliated with
such two-surfaces are suitable boundaries in both a quasilocal action and a
phase space formulation of general relativity. The resulting formalism provides
expressions for the quasilocal energy and angular momentum associated with the
horizon. The values of the energy and angular momentum are in agreement with
those derived from the isolated and dynamical horizon frameworks.Comment: 39 pages, 3 figures, Final Version : content essentially unchanged
but many small improvements made in response to referees, a few references
adde
The Chiral MagnetoHydroDynamics of QCD fluid at RHIC and LHC
The experimental results on heavy ion collisions at RHIC and LHC indicate
that QCD plasma behaves as a nearly perfect fluid described by relativistic
hydrodynamics. Hydrodynamics is an effective low-energy Theory Of Everything
stating that the response of a system to external perturbations is dictated by
conservation laws that are a consequence of the symmetries of the underlying
theory. In the case of QCD fluid produced in heavy ion collisions, this theory
possesses anomalies, so some of the apparent classical symmetries are broken by
quantum effects. Even though the anomalies appear as a result of UV
regularization and so look like a short distance phenomenon, it has been
realized recently that they also affect the large distance, macroscopic
behavior in hydrodynamics. One of the manifestations of anomalies in
relativistic hydrodynamics is the Chiral Magnetic Effect (CME). At this
conference, a number of evidences for CME have been presented, including i) the
disappearance of charge asymmetry fluctuations in the low-energy RHIC data
where the energy density is thought to be below the critical one for
deconfinement; ii) the observation of charge asymmetry fluctuations in Pb-Pb
collisions at the LHC. Here I give a three-page summary of some of the recent
theoretical and experimental developments and of the future tests that may
allow to establish (or to refute) the CME as the origin of the observed charge
asymmetry fluctuations.Comment: 4 pages, talk at Quark Matter 2011 Conference, Annecy, France, 23-28
May 201
Nonperturbative renormalization group approach to frustrated magnets
This article is devoted to the study of the critical properties of classical
XY and Heisenberg frustrated magnets in three dimensions. We first analyze the
experimental and numerical situations. We show that the unusual behaviors
encountered in these systems, typically nonuniversal scaling, are hardly
compatible with the hypothesis of a second order phase transition. We then
review the various perturbative and early nonperturbative approaches used to
investigate these systems. We argue that none of them provides a completely
satisfactory description of the three-dimensional critical behavior. We then
recall the principles of the nonperturbative approach - the effective average
action method - that we have used to investigate the physics of frustrated
magnets. First, we recall the treatment of the unfrustrated - O(N) - case with
this method. This allows to introduce its technical aspects. Then, we show how
this method unables to clarify most of the problems encountered in the previous
theoretical descriptions of frustrated magnets. Firstly, we get an explanation
of the long-standing mismatch between different perturbative approaches which
consists in a nonperturbative mechanism of annihilation of fixed points between
two and three dimensions. Secondly, we get a coherent picture of the physics of
frustrated magnets in qualitative and (semi-) quantitative agreement with the
numerical and experimental results. The central feature that emerges from our
approach is the existence of scaling behaviors without fixed or pseudo-fixed
point and that relies on a slowing-down of the renormalization group flow in a
whole region in the coupling constants space. This phenomenon allows to explain
the occurence of generic weak first order behaviors and to understand the
absence of universality in the critical behavior of frustrated magnets.Comment: 58 pages, 15 PS figure
Nuclear level densities and Îł -ray strength functions of 180,181Ta and neutron capture cross sections
Abstract: Please refer to full text to view abstract
Holographic Gravitational Anomaly and Chiral Vortical Effect
We analyze a holographic model with a pure gauge and a mixed
gauge-gravitational Chern-Simons term in the action. These are the holographic
implementations of the usual chiral and the mixed gauge-gravitational anomalies
in four dimensional field theories with chiral fermions. We discuss the
holographic renormalization and show that the gauge-gravitational Chern-Simons
term does not induce new divergences. In order to cancel contributions from the
extrinsic curvature at a boundary at finite distance a new type of counterterm
has to be added however. This counterterm can also serve to make the Dirichlet
problem well defined in case the gauge field strength vanishes on the boundary.
A charged asymptotically AdS black hole is a solution to the theory and as an
application we compute the chiral magnetic and chiral vortical conductivities
via Kubo formulas. We find that the characteristic term proportional to T^2 is
present also at strong coupling and that its numerical value is not
renormalized compared to the weak coupling result.Comment: 27 pages, no figure
Resonances in odd-odd 182Ta
Abstract: Enhanced Îł -decay on the tail of the giant electric dipole resonance, such as the scissors or pygmy resonances, can have significant impact on (n,Îł ) reaction rates. These rates are important input for modeling processes that take place in astrophysical environments and nuclear reactors. Recent results from the University of Oslo indicate the existence of a significant enhancement in the photon strength function for nuclei in the actinide region due to the scissors resonance. Further, the M1 strength distribution of the scissors resonances in rare earth nuclei has been studied extensively over the years. To investigate the evolution and persistence of the scissor resonance in other mass regions, an experiment was performed utilizing the NaI(Tl) Îł -ray detector array (CACTUS) and silicon particle telescopes (SiRi) at the University of Oslo Cyclotron laboratory. Particle-Îł coincidences from the 181Ta(d,p)182Ta and 181Ta(d,dâ)181Ta reactions were used to measure the nuclear level density and photon strength function of the well-deformed 181Ta and 182Ta systems, to investigate the existence of resonances below the neutron separation energy
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