Noisy Relativistic Quantum Games in Noninertial Frames

The influence of noise and of Unruh effect on quantum Prisoners' dilemma is investigated both for entangled and unentangled initial states. The noise is incorporated through amplitude damping channel. For unentangled initial state, the decoherence compensates for the adverse effect of acceleration of the frame and the effect of acceleration becomes irrelevant provided the game is fully decohered. It is shown that the inertial player always out scores the noninertial player by choosing defection. For maximally entangled initially state, we show that for fully decohered case every strategy profile results in either of the two possible equilibrium outcomes. Two of the four possible strategy profiles become Pareto Optimal and Nash equilibrium and no dilemma is leftover. It is shown that other equilibrium points emerge for different region of values of decoherence parameter that are either Pareto optimal or Pareto inefficient in the quantum strategic spaces. It is shown that the Eisert et al miracle move is a special move that leads always to distinguishable results compare to other moves. We show that the dilemma like situation is resolved in favor of one player or the other.Comment: 14 pages and 6 figure

Global quantum discord and von Neumann entropy in multipartite two-level atomic systems

We have computed the global quantum discord and von Neumann entropy of multipartite two-level atomic systems interacting with a single-mode Fock field. We use Tavis-Cumming model. We have explored how quantum correlations and quantum entanglement evolve with time in such systems. The quantum system is prepared initially in a mixed state and different parameters are varied to see how they affect the information processing in the system. The dynamical character of the global quantum discord and von Neumann entropy show an interplay between classical and non-classical correlations. Photons in this model play an important role to assist the global quantum discord and von Neumann entropy and we observed that the effects of the field on the global quantum discord and von Neumann entropy reside in the time evolution of the system indicating that both atom and field states have become entangled. The global quantum discord is assisted in a non-linear fashion with the number of photons in the system. The global quantum discord and von Neumann entropy show linear behavior with each other in the dynamics of the system. The effects of intrinsic decoherence on the dynamics of the global quantum discord and von Neumann entropy are also studied. We have extrapolated the results for a large photon number on the system. We have studied the effect of the change in the size of the system on the maximum value of global quantum discord and von Neumann entropy and we have estimated the scaling coefficients for this behavior

Anaesthetic management of a pregnant patient for aortic valve replacement

Cardiac disease can be encountered during pregnancy with the frequency being 1% to 2% of all pregnant women. Because of the high foetal and relative maternal mortality during surgery, medical management is the first line of treatment. Nevertheless, when medical treatment fails, cardiac surgery becomes necessary. We present the anaesthetic management of a case of Aortic valve disease in a pregnant woman undergoing surgery

The n-exponential convexity for majorization inequality for functions of two variables and related results

We apply the refined method of producing n-exponential convex functions of J. Pečarić and J. Perić to extend some known results on majorization type and related inequalities

A Hybrid Gold’s Returns Prediction Model Based on Empirical Mode Decomposition

Consumers have produced extraordinary levels of demand of Gold since the beginning of the financial crisis in 2008 and investment in small coins and bars striking a record high. Since the previous decade, the prices have reached the sky, but the demand for gold remains firm. With such an enormous need for gold coming from whole over the globe, forecast gold prices are of great interest. The main aim of this study is to forecast the price of gold returns, making use of Autoregressive (AR), Empirical Mode Decomposition Autoregressive (EMDAR) and hybrid Empirical Mode Decomposition Autoregressive Neural Network (EMDARNN). The daily data consists of 4837 observations starting from Jan 1995 to June 2013, has been used in this research. After assessing the accuracy of these models by mean absolute error and mean square error, it turns out that hybrid Empirical Mode Decomposition Autoregressive Neural Network excels all the other methods and produces better forecasting with high precision. Keywords: Gold Price, Autoregressive, Empirical Mode decomposition, Artificial Neural Networ

Prevalence of pelvic floor disorders in the Eastern Mediterranean region

Objectives: High prevalence of risk factors for pelvic floor disorders (PFD) in the Eastern Mediterranean may result in higher rates of prevalence of PFD in comparison to other regions. Despite individual studies, there are no clear statistics on the cumulative prevalence of PFDs in the East Mediterranean region. The aim of this study was to investigate the prevalence of PFDs in the Eastern Mediterranean region.Methods: A literature search without language restriction was conducted in PubMed, Cochrane database and Web of Science from 2016 to 01 June 2022. Cross-sectional and cohort studies that reported prevalence of urinary incontinence (UI), constipation, fecal incontinence (FI) and pelvic organ prolapse (POP) among women in the Eastern Mediterranean region were included. Study quality was assessed according to the Joanna Briggs Institute critical appraisal tool. Data were pooled and meta-analysed using a random effects model. PROSPERO: CRD42021283127Results: The search yielded 390 articles, from which 12 studies containing 9905 patients were included. Five studies were high quality and seven were low quality. The prevalence of POP (12 studies, 9905 participants), UI (5 studies, 2340 participants), constipation (4 studies, 2045 participants) and FI (1 study, 166 participants) was 39% (95% CI 21-57; I2 99.8%), 48% (95% CI 16-80; I2 99.7%), 39% (CI 17-60; I2 99.1%) and 14% (95% CI 9-20) respectively.Conclusion: In meta-analysis pooling studies of mixed quality, a high prevalence of PFDs was seen in the Eastern Mediterranean region.PROSPERO No.: CRD4202128312