Balloon pumps are employed to assist cardiac function in cases of acute myocardial infarction, ventricular arrhythmias, cardiogenic shock, unstable angina, refractory failure, or surgery. Counterpulsation, through increasing the diastolic pressure and reducing systolic pressure, increases coronary perfusion assists heart pump more blood at each contraction. An expanding-contracting balloon, mod...

Abstract We study a quantum Hot Big Bang in the connection representation, with matter constant of motion m whose conjugate defines time. Superpositions induce unitary inner product. The wavefunction reveals resolution singularity problem without new physics or supplementary boundary conditions. Backtracking time, probability peak eventually halts at maximum curvature, its height dropping there...

We propose an extended reservoir computer that shows the functional differentiation of neurons. The is developed to enable changing internal using evolutionary dynamics, and we call it computer. To develop neuronal units show specificity, depending on input information, dynamics should be controlled produce contracting after expanding dynamics. Expanding magnifies difference while contributes f...

We study cosmological perturbations produced by the most general twoderivative actions involving two scalar fields, coupled to Einstein gravity, with an arbitrary field space metric, that admit scaling solutions. For expanding universes, we find that scaleinvariant adiabatic perturbation spectra can be produced for any equation of state parameter w that satisfies −1 ≤ w < −1/3, and that all the...

We introduce “anamorphic” cosmology, an approach for explaining the smoothness and flatness of the universe on large scales and the generation of a nearly scale-invariant spectrum of adiabatic density perturbations. The defining feature is a smoothing phase that acts like a contracting universe based on some Weyl frame-invariant criteria and an expanding universe based on other frame-invariant ...

BACKGROUND Expanding access to highly active antiretroviral therapy (HAART) has become an important approach to HIV prevention in recent years. Previous studies suggest that concomitant changes in risk behaviours may either help or hinder programs that use a Treatment as Prevention strategy. ANALYSIS We consider HIV-related risk behaviour as a social contagion in a deterministic compartmental...