THE PRINCIPLE OF SUPERPOSITION. The need for a quantum theory Classical mechanics has been developed continuously from the time of Newton and applied to an ...

During the set-up phase of an international study of genetic influences on outcomes from sepsis, we aimed to characterise potential differences in ethics approval processes and outcomes in participating European countries. Between 2005 and 2007 of the FP6-funded international Genetics Of Sepsis and Septic Shock project, we asked national coordinators to complete a structured survey of research ethic committee approval structures and processes in their countries, and linked these data to outcomes. Survey findings were reconfirmed or modified in 2017. Eighteen (...) countries participated in the study, recruiting 2257 patients from 160 ICUs. National practices differed widely in terms of composition of RECs, procedures and duration of the ethics approval process. Eight countries used a single centralised process for approval, seven required approval by an ethics committee in each participating hospital, and three required both. Outcomes of the application process differed widely between countries because of differences in national legislation, and differed within countries because of interpretation of the ethics of conducting research in patients lacking capacity. The RECs in four countries had no lay representation. The median time from submission to final decision was 1.5 months; in nine approval was received within 1 month; six took over 6 months, and in one 24 months; had all countries been able to match the most efficient approvals processes, an additional 74 months of country or institution-level recruitment would have been available. In three countries, rejection of the application by some local RECs resulted in loss of centres; and one country rejected the application outright. The potential benefits of the single application portal offered by the European Clinical Trials Regulation will not be realised without harmonisation of research ethics committee practices as well as national legislation. (shrink)

This commentary focuses on the parts of psychological game theory dealing with preference, as illustrated by team reasoning, and supports the conclusion that these theoretical notions do not contribute above and beyond existing theory in understanding social interaction. In particular, psychology and games are already bridged by a comprehensive, formal, and inherently psychological theory, interdependence theory (Kelley & Thibaut 1978; Kelley et al. 2003), which has been demonstrated to account for a wide variety of social interaction phenomena.

In this paper we discuss the epistemological positions of evolution theories. A sharp distinction is made between the theory that species evolved from common ancestors along specified lines of descent (here called the theory of common descent), and the theories intended as causal explanations of evolution (e.g. Lamarck's and Darwin's theory). The theory of common descent permits a large number of predictions of new results that would be improbable without evolution. For instance, (a) phylogenetic trees have been validated now; (b) (...) the observed order in fossils of new species discovered since Darwin's time could be predicted from the theory of common descent; (c) owing to the theory of common descent, the degrees of similarity and difference in newly discovered properties of more or less related species could be predicted. Such observations can be regarded as attempts to falsify the theory of common descent. We conclude that the theory of common descent is an easily-falsifiable & often-tested & still-not-falsified theory, which is the strongest predicate a theory in an empirical science can obtain. Theories intended as causal explanations of evolution can be falsified essentially, and Lamarck's theory has been falsified actually. Several elements of Darwin's theory have been modified or falsified: new versions of a theory of evolution by natural selection are now the leading scientific theories on evolution. We have argued that the theory of common descent and Darwinism are ordinary, falsifiable scientific theories. (shrink)

Only in recent years have developmental psychologists begun advocating and exploring dual-process theories and their applicability to cognitive development. In this paper, a dual-process model of developments in two processing systems—an “analytic” and an “experiential” system—is discussed. We emphasise the importance of “metacognitive intercession” and developments in this ability to override experiential processing. In each of two studies of sunk cost decisions, age-related developments in normative decisions were observed, as were declines in the use of a “waste not” heuristic. In (...) the second study, children and adolescents were presented with arguments for normative and non-normative sunk cost decisions. Following argument evaluation, participants were re-presented the original problems and a set of novel, transfer problems. Results indicated that post-argument improvements were most apparent during adolescence. Age-related improvements were most noticeable on the transfer problems. In general, the findings suggest that the ability to metacognitively intercede (i.e., reflect on arguments; inhibit experientially produced responses) emerges towards middle adolescence. However, even by the end of adolescence, in the absence of significant contextual cues and motivation, this ability is infrequently utilised. (shrink)

The paper offers a counter- reading to Derrida's “utopian” reading of Nietzsche, focussing instead on Nietzsche's cynical view of friendship, based on the impossibility of being a friend to oneself. Unlike Aristotle, who sees the basis of human political nature in their shared rationality and mutual friendship, Nietzsche sees not only politics, but human beings themselves as being constituted by a violent act of submission, and characterised by an ongoing struggle for power. The paper further examines two intellectual traditions about (...) friendship and politics, one according to which the two are positively related and no real tension could exist between them. Another tradition holds friendship to be irreconcilable with politics. Elements of both traditions can be recognised in Nietzsche who, finding the radical deceptive nature of friendship unacceptable, moves to a solitude which is equally unbearable. For it is precisely the hermit that knows that his solitude makes him into an other to himself, which turns out to be a motive for real friendship, the third element which prevents the lonely hermit from sinking into the depth of self- interrogation. The paper concludes with the recognition that friendship, for Nietzsche, can only have an intermediary function on the way to full realisation of friendship, which will be a friendship of an inner difference or plurality, i.e. on our way to what is ultimately beyond the human condition, to the “over man”. (shrink)

Dirac's approach to gauge symmetries is discussed. We follow closely the steps that led him from his conjecture concerning the generators of gauge transformations {\it at a given time} ---to be contrasted with the common view of gauge transformations as maps from solutions of the equations of motion into other solutions--- to his decision to artificially modify the dynamics, substituting the extended Hamiltonian for the total Hamiltonian. We show in detail that Dirac's analysis was incomplete and, in completing (...) it, we prove that the fulfilment of Dirac's conjecture ---in the ``non-pathological" cases--- does not imply any need to modify the dynamics. We give a couple of simple but significant examples. (shrink)

: Although Dirac rarely participated in the interpretational debates over quantum theory, it is traditionally assumed that his views were aligned with Heisenberg and Bohr in the so-called Copenhagen-Göttingen camp. However, an unpublished—and apparently unknown—lecture of Dirac's reveals that this view is mistaken; in the famous debate between Einstein and Bohr, Dirac sided with Einstein. Surprisingly, Dirac believed that quantum mechanics was not complete, that the uncertainty principle would not survive in the future physics, and that (...) a deterministic description of the microworld would be recovered. In this paper I show how we can make sense of this unpublished lecture in the context of Dirac's broader philosophy of quantum mechanics, and how our present understanding of Dirac's philosophical views must be revised. (shrink)

This article describes a theory of the computations underlying the selection of coordinated motion patterns, especially in reaching tasks. The central idea is that when a spatial target is selected as an object to be reached, stored postures are evaluated for the contributions they can make to the task. Weights are assigned to the stored postures, and a single target posture is found by taking a weighted sum of the stored postures. Movement is achieved by reducing the distance between the (...) starting angle and target angle of each joint. The model explains compensation for reduced joint mobility, tool use, practice effects, performance errors, and aspects of movement kinematics. Extensions of the model can account for anticipation and coarticulation effects, movement through via points, and hierarchical control of series of movements. References: 170. (shrink)

Recent developments in agriculture have stirred up interest in the concept of “sustainable” farming systems. Still it is difficult to determine the extent to which certain agricultural practices can be considered sustainable or not. Aiming at identifying the necessary attributes with respect to sustainability in Dutch dairy farming in the beginning of the third millennium, we first compiled a list of attributes referring to all farming activities with their related side effects with respect to economic, internal social, external social, and (...) ecological sustainability. A wide range of people were consulted to contribute to our list of attributes. Our consultation showed that only one attribute was selected for economic and internal social sustainability: profitability and working conditions, respectively. The list for external social sustainability contained 19 attributes and the list for ecological sustainability contained 15 attributes. To assess their relative importance, the same experts and stakeholders ranked the attributes for external social and ecological sustainability by using a questionnaire. The most important attributes for external social sustainability were food safety, animal health, animal welfare, landscape quality, and cattle grazing. For ecological sustainability they were eutrophication, groundwater pollution, dehydration of the soil, acidification, and biodiversity. The present method for identifying and ranking attributes is universal and, therefore, can be used for other agricultural sectors, for other countries, and for other time periods. (shrink)

The Newell Test is an important step in advancing our understanding of cognition. One critical constraint is missing from this test : A cognitive architecture must be self-contained. ACT-R and connectionism fail on this account. I present an alternative proposal, called Distributed Adaptive Control, and expose it to the Newell Test with the goal of achieving a clearer specification of the different constraints and their relationships, as proposed by Anderson & Lebiere.

We revise the mathematical implementation of the Dirac formulation of quantum mechanics, presenting a rigorous framework that unifies most of versions of this implementation.

In recent years, researchers have observed the process of mainstreaming Fair Trade and the emergence of alternative sustainability standards in the coffee industry. The underlying market dynamics that have contributed to these developments are, however, under-researched. Insight into these dynamics is important to understand how markets can develop to favor sustainability. This study examines the major developments in the market for certified coffee in the Netherlands. It finds that, in the creation of a market for sustainable coffee, decisions that significantly (...) influence market creation are made in the lead companies (retailers and coffee roasters). These decisions are made possible by the availability of multiple systems of sustainability standards and by the existence of a small segment of loyal Fair Trade customers that ensured that sustainability remained an issue on the coffee market in the years before the market creation took-off. Fair Trade did not become the new rule in this process, but it became the benchmark against which companies could compare themselves and the basis upon which they built in adopting or developing new standards that would be more feasible in their business models. (shrink)

The authors present a neurological theory of how cognitive information and emotional information are integrated in the nucleus accumbens during effective decision making. They describe how the nucleus accumbens acts as a gateway to integrate cognitive information from the ventromedial prefrontal cortex and the hippocampus with emotional information from the amygdala. The authors have modeled this integration by a network of spiking artificial neurons organized into separate areas and used this computational model to simulate 2 kinds of cognitive–affective integration. The (...) model simulates successful performance by people with normal cognitive–affective integration. The model also simulates the historical case of Phineas Gage as well as subsequent patients whose ability to make decisions became.. (shrink)

In this paper, 1 examine the role of the delta function in Dirac’s formulation of quantum mechanics (QM), and I discuss, more generally, the role of mathematics in theory construction. It has been argued that mathematical theories play an indispensable role in physics, particularly in QM [Colyvan, M. (2001). The inrlispensability of mathematics. Oxford University Press: Oxford]. As I argue here, at least in the case of the delta function, Dirac was very clear about its rlispensability. I first (...) discuss the significance of the delta function in Dirac’s work, and explore the strategy that he devised to overcome its use. l then argue that even if mathematical theories turned out to be indispensable, this wouidn’t justify the commitment to the existence of mathematical entities. In fact, even in successful uses of mathematics, such as in Dirac’s discovery of antimatter, there’s no need to believe in the existence of the corresponding mathematical entities. An interesting picture about the application of mathematics emerges from a careful examination of Dirac’s work. (shrink)

In this commentary, we highlight a difficulty for metric navigation arising from recent data with grid and place cells: the integration of piecemeal representations of space in environments with repeated boundaries. Put simply, it is unclear how place and grid cells might provide a global representation of distance when their fields appear to represent repeated boundaries within an environment. One implication of this is that the capacity for spatial inferences may be limited.

Ever since Plato’s ‘Republic’ was written over two thousand years ago, one of the main concerns of social philosophy and later empirical social science was to understand the moral nature of human beings. The faculty to think and act in terms of overarching moral values is as much a defining hallmark of our species as is our intelligence, so _homo moralis_ is no less an appropriate term to describe humans as _homo sapiens_. This volume makes a case for the pivotal (...) role of social psychology as the core discipline for studying morality. The book is divided into four parts. First, the role of social psychological processes in moral values and judgments is discussed, followed by an analysis of the role of morality in interpersonal processes. The sometimes paradoxical, ironic effects of moral beliefs are described next, and in the final section the role of morality in collective and group behavior is considered. This book will be of interest to students and researchers in the social and behavioral sciences concerned with moral behavior, as well as professionals and practitioners in clinical, counseling, organizational, marketing and educational psychology where issues of ethics and morality are of importance. (shrink)