4,159 research outputs found
Spillover effects of FDI inflows on the banking industry in China.
The study examines the magnitude of economic spillover and the impact of foreign direct investment (FDI) inflow on the efficiency of the bank management in China This study examines direct and indirect spillover in the short-run and their economic spillover in the long-run. Unit root tests, cointegration tests, vector error correction models, and Wald tests are employed in the empirical analysis using monthly time series data from January 2002 to September 2013 retrieved from the Bank of China database. In testing long-run economic spillover, this study finds that FDI inflows have a significant economic spillover, but the spillover is likely to be negative. In testing short-run economic spillover, this research finds that FDI inflows have a significant positive direct effect on the efficiency of the bank management in Chain
Investigating health related fitness level among down syndrome in Kelantan
Down syndrome (DS) is a category of intellectual disabilities which is associated
with abnormalities in chromosome 21. Individuals with DS have lower physical fitness
levels compared to their typical peers. Furthermore, research also states that their level of
physical fitness are generally lower than individuals with intellectual disabilities from
other categories. The low level of physical fitness may affect their health and may
negative affect their quality of life.
This study was conducted to investigate the fitness level among Down syndrome in
Kelantan. There were 16 Down syndrome participants from Community Based
Rehabilititation (CBR) and Kelantan Down Syndrome Association (PSDNK) participated
in this study. The physical fitness levels such as body mass index, body fat percentage,
Rockport 1-mile walking test, sit-up test, curl up test, hand grip test as well as sit-and-reach
test have been conducted.
The study found that the health related physical fitness levels of DS was low,
conversely, the body mass index and body fat percentage are high. These findings
indicating that the health related fitness of DS in this study are not healthy. Therefore, it is
imperative for the DS to actively participate in physical activities in order to reduce the
risk of having non-communicable diseases (NCD) such as diabetes, hypertension or heart
diseases
Imprints of Schwinger Effect on Primordial Spectra
We study the Schwinger effect during inflation and its imprints on the
primordial power spectrum and bispectrum. The produced charged particles by
Schwinger effect during inflation can leave a unique angular dependence on the
primordial spectra.Comment: 27 pages, 13 figures, JHEP accepted versio
Quantum information processing architecture with endohedral fullerenes in a carbon nanotube
A potential quantum information processor is proposed using a fullerene
peapod, i.e., an array of the endohedral fullerenes 15N@C60 or 31P@C60
contained in a single walled carbon nanotube (SWCNT). The qubits are encoded in
the nuclear spins of the doped atoms, while the electronic spins are used for
initialization and readout, as well as for two-qubit operations.Comment: 8 pages, 8 figure
Black hole wavefunctions and microcanonical states
We consider the problem of defining a microcanonical thermofield double state
at fixed energy and angular momentum from the gravitational path integral. A
semiclassical approximation to this state is obtained by imposing a mixed
boundary condition on an initial time surface. We analyze the corresponding
boundary value problem and gravitational action. The overlap of this state with
the canonical thermofield double state, which is interpreted as the
Hartle-Hawking wavefunction of an eternal black hole in a mini-superspace
approximation, is calculated semiclassically. The relevant saddlepoint is a
higher-dimensional, rotating generalization of the wedge geometry that has been
studied in two-dimensional gravity.Comment: 20 page
Hartle-Hawking state and its factorization in 3d gravity
We study 3d quantum gravity with two asymptotically anti-de Sitter regions,
in particular, using its relation with coupled Alekseev-Shatashvili theories
and Liouville theory. Expressions for the Hartle-Hawking state, thermal
-point functions, torus wormhole correlators and Wheeler-DeWitt
wavefunctions in different bases are obtained using the ZZ boundary states in
Liouville theory. Exact results in 2d Jackiw-Teitelboim (JT) gravity are
uplifted to 3d gravity, with two copies of Liouville theory in 3d gravity
playing a similar role as Schwarzian theory in JT gravity. The connection
between 3d gravity and the Liouville ZZ boundary states are manifested by
viewing BTZ black holes as Maldacena-Maoz wormholes, with the two wormhole
boundaries glued along the ZZ boundaries. In this work, we also study the
factorization problem of the Hartle-Hawking state in 3d gravity. With the
relevant defect operator that imposes the necessary topological constraint for
contractibility, the trace formula in gravity is modified in computing the
entanglement entropy. This trace matches with the one from von Neumann algebra
considerations, further reproducing the Bekenstein-Hawking area formula from
entanglement entropy. Lastly, we propose a calculation for off-shell
geometrical quantities that are responsible for the ramp behavior in the late
time two-point functions, which follows from the understanding of the Liouville
FZZT boundary states in the context of 3d gravity, and the identification
between Verlinde loop operators in Liouville theory and "baby universe"
operators in 3d gravity.Comment: 71 pages+appendices, 33 figures (v2: Correction to Section 6.1,
figures added, typos fixed, size of figures compressed, references added.
Nuclear-nuclear interaction mediated by a mechanically controlled nitrogen-vacancy-center spin in diamond
We propose a scheme to achieve nuclear-nuclear indirect interactions mediated
by a mechanically driven nitrogen-vacancy (NV) center in diamond. Here we
demonstrate two-qubit entangling gates and quantum-state transfer between two
carbon nuclei in diamond. In such a system, the NV center interacts with a
nearby nuclear spin via a dipole-dipole interaction. Under the quantum Zeno
condition, the scheme is robust against decoherence caused by coupling between
the NV center (nuclear spins) and the environment. Conveniently, precise
control of dipole coupling is not required so this scheme is insensitive to
fluctuating positions of the nuclear spins and the NV center. Our scheme
provides a general blueprint for multi-nuclear-spin gates and for multi-party
communication in a polygon geometry with each vertex occupied by a nuclear
spin.Comment: 11 pages, 8 figure
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