Accepted quantum description is stochastic, yet history is nonstochastic, i.e., not representable by a probability distribution. Therefore ordinary quantum mechanics is unsuited to describe history. This is a limitation of the accepted quantum theory, rather than a failing of mechanics in general. To remove the limitation, it would be desirable to find a form of quantum mechanics that describes the future stochastically and the past nonstochastically. For this purpose it proves sufficient to introduce into quantum mechanics, by means of a (...) perfected formal correspondence, certain analogs of the classical initial-condition constants. Through the restoration of such parameters at the quantum level one accomplishes a natural accommodation of time anisotropy, wave-function reduction, and “event” description by quantum mechanical equations of motion alone, without the need for extra postulates (e.g., a projection postulate). This requires a complete restructuring of quantum measurement theory. (shrink)

We consider the relation between versions of Ramsey’s Theorem and König’s Infinity Lemma, in the absence of the axiom of choice.

I Agree with R. G. Austin, who in his recent paper, 107 ff.) showed that Virgil did not write this proem to the Aeneid, and suggested that it was produced in the first half of the first century, perhaps prompted by the problem mentioned by Servius on A. I. I: ‘multi varie disserunt cur ab armis Vergilius coeperit.’ I wish here to comment briefly on the content of the lines. graciliqui... carmen refers to the writing of the Eclogues. As Austin (...) points out, Virgil has gracilis only in E. 10. 70 ff., the conclusion of the whole of the Eclogues:Haec sat erit, divae, vestrum cecinisse poetam,dum sedet et gracili fiscellam texit hibisco,Pierides…. (shrink)

Laland and colleagues have sought to challenge the proximate–ultimate distinction claiming that it imposes a unidirectional model of causation, is limited in its capacity to account for complex biological phenomena, and hinders progress in biology. In this article the core of their argument is critically analyzed. It is claimed that contrary to their claims Laland et al. rely upon the proximate–ultimate distinction to make their points and that their alternative conception of reciprocal causation refers to phenomena that were already accounted (...) for by standard theory. (shrink)

In spite of the wide variety of approaches to ethics training it is still debatable which approach has the highest potential to enhance professionals’ integrity. The current effort assesses a novel curriculum that focuses on metacognitive reasoning strategies researchers use when making sense of day-to-day professional practices that have ethical implications. The evaluated trainings effectiveness was assessed by examining five key sensemaking processes, such as framing, emotion regulation, forecasting, self-reflection, and information integration that experts and novices apply in ethical decision-making. (...) Mental models of trained and untrained graduate students, as well as faculty, working in the field of physical sciences were compared using a think-aloud protocol 6 months following the ethics training. Evaluation and comparison of the mental models of participants provided further validation evidence for sensemaking training. Specifically, it was found that trained students applied metacognitive reasoning strategies learned during training in their ethical decision-making that resulted in complex mental models focused on the objective assessment of the situation. Mental models of faculty and untrained students were externally-driven with a heavy focus on autobiographical processes. The study shows that sensemaking training has a potential to induce shifts in researchers’ mental models by making them more cognitively complex via the use of metacognitive reasoning strategies. Furthermore, field experts may benefit from sensemaking training to improve their ethical decision-making framework in highly complex, novel, and ambiguous situations. (shrink)

Brunner, Austin Farrer, W.M. Horton, Pierre Maury.

Bernat (2024) and Busch (2024) both argue that the clamping of cerebral vasculature in NRP-cDCD ensures sufficient diagnostic certainty of death that the procedure does not violate the Dead Donor R...

The article is devoted to the significance of the irrational in education processes and to the role of teacher as an actor of psychological influence on the formation of child’s personality. Unfortunately, teacher education programs at universities do not properly introduce to the students all the aspects (including unconscious ones) of the interaction between people, in particular in the “teacher – student” system. At the same time, in the pedagogical literature there are no special works related to this issue. Psychological (...) theories and methods of education, which are designed to form and develop a personality, can simply destroy the necessary qualities in a child that lead to his independence and self-affirmation. Teachers who are incompetent in pedagogical issues often defend themselves by appealing to the well-known names of scientists and their theories. The theories should not become a dogma and a main path in education. They should serve as an auxiliary instrument. The theory of education is obliged to revise the content and form of the organization of educational process in accordance with the understanding and sense of the rhythm of the New World, taking into account the integration of educational concepts that provide a balance of the rational and irrational in the cognitive activity of a student. This balance is necessary for the full and comprehensive development of child’s personality, for the formation of his/her identity. The author of the article believes that under the conditions of large-scale simulacrization, virtualization, digitalization of the educational space, it is necessary to strengthen the emotional component of the educational process to avoid the final elimination of the aura (W. Benjamin) of the class area from the sphere of human relations in the “teacher – student – teacher” system. (shrink)

An analysis is presented of the significance and consequent limitations on the applicability of the von Neumann measurement postulate in quantum mechanics. Directly observable quantities, such as the expectation value of the velocity operator, are distinguished from mathematical constructs, such as the expectation value of the canonical momentum, which are not directly observable. A simple criterion to distinguish between the two types of operators is derived. The non-observability of the electromagnetic four-potentials is shown to imply the non-measurability of the canonical (...) momentum. The concept of a mechanical gauge is introduced and discussed. Classically the Lagrangian is nonunique within a total time derivative. This may be interpreted as the freedom of choosing a “mechanical” (M) gauge function. In quantum mechanics it is often implicitly assumed that the M-gauge vanishes. However, the requirement that directly observable quantities be independent of the arbitrary mechanical gauge is shown to lead to results analogous to those derived from the requirement of electromagnetic gauge independence of observables. The significance of the above to the observability of transition amplitudes between field-free energy eigenstates in the presence (and absence) of electromagnetic fields is discussed. E- and M-gauge independent transition amplitudes between field-free energy eigenstates in the absence of electromagnetic fields are defined. It is shown that, in general, such measurable amplitudes cannot be defined in the presence of externally applied time-dependent fields. Transition amplitudes in the presence of time-independent fields are discussed. The path dependence of previous derivations of E-gauge independent Hamiltonians and/or transition amplitudes in the presence of electromagnetic fields are related to the inherent M-gauge dependence of these quantities in the presence of such fields. (shrink)