منابع مشابه
The problematic role of 'irreversibility' in the definition of death.
Most definitions of death--whether cardiopulmonary, whole brain and brain stem, or just upper brain--include an irreversibility condition. Cessation of function is not enough to declare death. Irreversibility should be limited to an organism's ability to 'restart' itself after vital organs have ceased to function. However, this would mean that every hour people who cannot be revived without the...
متن کاملMorphogenesis, plasticity and irreversibility.
The dynamical systems theory of morphogenesis is surveyed, in which positional information is generated through intracellular reaction dynamics and cell-cell interaction. Cells differentiate because of these dynamics. In addition, these differentiated cells form an ordered spatial pattern, which further stabilizes the cellular states, leading to robust morphogenesis and irreversibility in the d...
متن کاملRelativity and Irreversibility
The dynamical laws of physics in their conventional formulation are time reversible. The description of irreversible phenomena was always thought to be incompatible with the dynamical laws. We have recently discussed [1, 2, 3, 9, 10, 11, 12] the origin of irreversible behaviour due to resonances in various Poincaré nonintegrable quantum systems. The analytic extension of the Hamiltonian or Liou...
متن کاملGibbs Entropy and Irreversibility
This contribution is dedicated to dilucidating the role of the Gibbs entropy in the discussion of the emergence of irreversibility in the macroscopic world from the microscopic level. By using an extension of the Onsager theory to the phase space we obtain a generalization of the Liouville equation describing the evolution of the distribution vector in the form of a master equation. This formal...
متن کاملScattering and intrinsic irreversibility
The search of a physical explanation for the evolution towards equilibrium of quantum systems has a great interest for quantum statistical mechanics. For many years a great number of papers were devoted to this problem. The microscopic explanation of the approach to equilibrium was related to the so called ’intrinsic irreversibility’ of quantum systems. B.Misra, I.Prigogine, M.Courbage [1] [2] ...
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ژورنال
عنوان ژورنال: Cambridge Quarterly of Healthcare Ethics
سال: 2020
ISSN: 0963-1801,1469-2147
DOI: 10.1017/s0963180120000043