5,567 research outputs found
Impact of EU-FDI on economic growth in Middle Eastern countries
This paper develops a simultaneous equations model to test the process of
interaction between foreign direct investment, exports and economic growth in
three Middle Eastern countries: Egypt, Jordan, Oman, and test for any possible
feedback effects. Most of the FDI in these countries flows from the EU. The
simultaneous equations model results suggest that higher rates of economic
growth result in a greater inflow of foreign capital. The regression results also
suggest that interest rate differentials exert a much stronger effect than economic
growth on the attraction of foreign capital in the case of Egypt. However, this
variable does not seem to play a significant role in the case of Oman. Moreover,
the simultaneous equations model results suggest that there is a feedback effect in
the relationship between economic growth and capital inflow in all sample
countries. A greater inflow of foreign capital leads to growth in the exports of
good and services. The expansion in exports leads to growth in GNP, which in
turn, encourages the attraction of more foreign capital.peer-reviewe
Supervised exercise training and increased physical activity to reduce cardiovascular disease risk in women with polycystic ovary syndrome: Study protocol for a randomized controlled feasibility trial
Background: Polycystic ovary syndrome (PCOS) affects up to 20% of women and is characterised by higher amounts of visceral fat, obesity, insulin resistance, dyslipidemia and reproductive and cardiometabolic complications. Increased oxidised low-density lipoprotein (LDL) concentrations have been associated with an increased risk of cardiovascular disease (CVD)-related events. Oxidised LDL is rarely used as a marker for CVD risk in PCOS-related studies despite its widely accepted role in atherogenesis and the increased risk factors associated with PCOS. Additionally, prolonged periods of sedentary behaviour can negatively affect metabolic health. No studies have specifically examined the effects of reducing sedentary behaviour on CVD risk in PCOS with a lifestyle physical activity intervention. The aim of the current study is to measure the feasibility of a randomised controlled trial (RCT) examining the effects of supervised exercise and reducing sedentary behaviour in women with PCOS on CVD risk. Methods/design: A feasibility, exploratory RCT will be conducted. Fifty-one pre-menopausal females will be randomly allocated between an exercise group (EG), a lifestyle physical activity group (LPAG) and a control group. Participants in the EG will undertake a 12-week supervised aerobic exercise programme. The LPAG will aim to increase daily physical activity and reduce sedentary behaviour for 12 weeks. The control group will not take part in any intervention. Primary outcomes are feasibility and acceptability of the intervention and procedures. Secondary outcomes are oxidised LDL, aerobic fitness, blood lipid profile, fasting glucose and insulin, testosterone and inflammatory markers. Discussion: PCOS is associated with various increased risk factors for CVD, including hypertension, dyslipidemia, abdominal obesity, insulin resistance, and inflammation. Whether oxidised LDL has a role in this increased risk is not yet known. The present study aims to measure the feasibility of implementing structured exercise training and/or increased lifestyle physical activity in women with PCOS, so that a subsequent adequately powered RCT can be designed. The results from the study will be used to refine the interventions and determine the acceptability of the study design. A limitation is that some self-monitoring in the lifestyle physical activity group may not be reliable or replicable, for example inputting information about time spent cleaning/gardening
Information under Lorentz transformation
A general form of a two-qubit system is obtained under the effect of Lorentz
transformation. We investigate extensively some important classes in the
context of quantum information. It is shown Lorentz transformation causes a
decay of entanglement and consequently information loses. On the other hand, it
generates entangled states between systems prepared initially in a separable
states. The partial entangled states are more robust under Lorentz
transformation than maximally entangled states. Therefore the rate of
information lose is larger for maximum entangled states compared with that for
partially entangled states
Controlling the quantum computational speed
The speed of quantum computation is investigated through the time evolution
of the speed of the orthogonality. The external field components for classical
treatment beside the detuning and the coupling parameters for quantum treatment
play important roles on the computational speed. It has been shown that the
number of photons has no significant effect on the speed of computation.
However, it is very sensitive to the variation in both detuning and the
interaction coupling parameters.Comment: 9 pages, 10 figure
Dynamics of impurity, local and non-local information for two non identical qubits
From the separability point of view the problem of two atoms interact with a
single cavity mode is investigated. The density matrix is calculated and used
to discuss the entanglement and to examine the dynamics of the local and
non-local information. Our examination concentrated on the variation in the
mean photon number and the ratio of the coupling parameters. Furthermore, we
have also assumed that the atomic system is initially in the ground states as
well as in the intermediate states. It has been shown that the local
information is transferred to non-local information when the impurity of one
qubit or both is maximum
Quantum dense coding over Bloch channels
Dynamics of coded information over Bloch channels is investigated for
different values of the channel's parameters. We show that, the suppressing of
the travelling coded information over Bloch channel can be increased by
decreasing the equilibrium absolute value of information carrier and
consequently decreasing the distilled information by eavesdropper. The amount
of decoded information can be improved by increasing the equilibrium values of
the two qubits and decreasing the ratio between longitudinal and transverse
relaxation times. The robustness of coded information in maximum and partial
entangled states is discussed. It is shown that the maximum entangled states
are more robust than the partial entangled state over this type of channels
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