The requirement of gauge invariance for the Schwinger-DeWitt equations, interpreted as a manifestly covariant quantum theory for the evolution of a system in spacetime, implies the existence of a five-dimensional pre-Maxwell field on the manifold of spacetime and “proper time” τ. The Maxwell theory is contained in this theory; integration of the field equations over τ restores the Maxwell equations with the usual interpretation of the sources. Following Schwinger's techniques, we study the Green's functions for the five-dimensional hyperbolic field equations (...) for both signatures ± [corresponding to O(4, 1) or O(3, 2) symmetry of the field equations] of the proper time derivative. The classification of the Green's functions follows that of the four-dimensional theory for “massive” fields, for which the “mass” squared may be positive or negative, respectively. The Green's functions for the five-dimensional field are then given by the Fourier transform over the “mass” parameter. We derive the Green's functions corresponding to the principal part ΔP and the homogeneous function Δ 1 ; all of the Green's functions can be expressed in terms of these, as for the usual field equations with definite mass. In the O(3, 2) case, the principal part function has support for x2⩾τ2, corresponding to spacelike propagation, as well as along the light cone x2=0 (for τ=0). There can be no transmission ofinformation in spacelike directions, with this propagator, since the Maxwell field, obtained by integration over τ, does not contain this component of the support. Measurements are characterized by such an integration. The spacelike field therefore can dynamically establish spacelike correlations. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:M. C. Henberg GEORGE ELIOT'S MORAL REALISM No moment in the history of ethics could be more propitious than the present for a comprehensive restudy of George Eliot's moral realism. Analysis of the "logic" of moral language has proved barren, prescriptivism is in full flight, and schematic divisions of moral theories into descriptive versus normative, deontological versus teleological, or substantive versus meta-ethical have promised much but delivered little. Such (...) distinctions dominate maps to the modern moral terrain, but awanderer in the land ofchoice itselfstill finds himselfwithout signposts. A particularly unhealthy bias in contemporary ethics has been the belief that moral principles ought to withstand all counterexamples, however plausible or implausible, whether concocted from a sense of men's actual capacities or from a fondness for outrageous possibilities, many of them lifted from the pages of science fiction. If moral rules do not govern in hard cases, it is thought, they do not govern at all. Few philosophers have bothered to distinguish between the hard cases common to men's actual choices and the hard cases confronted by one man in a million or by the imagined inhabitants of some future world. (Witness, for example, the present preoccupation with "lifeboat ethics" and ask yourself how many actual moral choices are so starkly dramatic.) Any logically possible circumstance is too often assumed to qualify as a fruitful area for moral investigation; and any conceivable counterexample, achieved by whatever stretch of the imagination, is assumed to be fair ammunition in the debate over principles. Closely related to this first bad tendency in modern philosophical ethics is another, equally bad. Too often the examples used are of little moral significance, obviously conceived to make a point rather than to direct attention to commonplace but nonetheless important circumstances where informed choice is essential. Philosophy journals have treated us to discussions about whether failing to wear tennis whites is or is not "rude" and about whether a first sinner's crossing of a patch of lawn does or does not have a "threshold-related effect" 20 M. C. Henberg21 which must be considered in assessing later consequences (a bare path ultimately worn in the grass). Such examples rightly earn a contemptuous snort from anyone who expects philosophy to increase our understanding in matters of serious consequence. Whatever her other accomplishments as a moralist and philosophical thinker, George Eliot never commits either of the preceding crimes. Her moral realism constitutes first and foremost an ethics aimed at the bulk of her fellow men. She yields to the theoretic impulse solely in criticizing other theories. When it comes to providing answers, she depicts fictional characters whose struggles, failings, and passions are ultimately akin to what we ourselves are likely to experience. Her ethical precepts are not aimed at proving themselves in every conceivable situation. They are instead precepts which are sometimes susceptible to ruin, just as are the changeable creatures who profess them. To know the natural boundaries of a moral rule, Eliot tells us, is as difficult and important as knowing the rule itself. Moral realism requires a combination of clear-eyed perception and imaginative sympathy—faculties ill-served by lectures on abstract principles. Eliot reminds us that our best moral judgments must be "checked and enlightened by a perpetual reference to the special circumstances that mark the individual lot" (The Mill on the Floss, Book VII, chap. 3). This emphasis in particular—found both in her early essays and early fiction—makes Eliot's moral realism a welcome anodyne to the worst tendencies of modern ethics. The discussion which follows will be confined to early works, including Scenes of Clerical Life, Adam Bede, and The Mill on the Floss. The ruminations of her authorial voice in these novels may conveniently be juxtaposed with her essays, for the works are near to one another both temporally and thematically. Later novels such as Middlemarch and Daniel Deronda—however interesting from an ethical perspective— do not lend themselves to this mode of analysis. To what extent Eliot's views are modified in these later novels constitutes a separate topic whose omission here does not reflect upon its intrinsic interest or importance. Since George Eliot offers no... (shrink)

The article tries to show that both resolution of the mind-body problem and adequate description of the phenomenal body depend upon the ontology presupposed in offering such a resolution or description. a detailed analysis of sartre's treatment of the body demonstrates that his failures are a result of his neo-cartesian ontology. both the critique and the resolution proposed toward the end take their departure from merleau- ponty's thesis of the ontological primacy of phenomena.

During the coronavirus pandemic, communities have faced shortages of important healthcare resources such as COVID-19 vaccines, medical staff, ICU beds and ventilators. Public health officials in the U.S. have had to make decisions about two major issues: which infected patients should be treated first (triage), and which people who are at risk of infection should be inoculated first (vaccine distribution). Following Beauchamp and Childress’s principlism, adopted guidelines have tended to value both whole lives (survival to discharge) and life-years (survival (...) for years past discharge). This process of collective moral reasoning has revealed our common commitment to both Kantian and utilitarian principles. For Kant, respecting people’s rights entails that we ought to value whole lives equally. Therefore we ought to allocate resources so as to maximise the number of patients who survive to discharge. By contrast, the principle of utility has us maximise life-years so that people can satisfy more of their considered preferences. Although people are treated impartially in the utilitarian calculus, it does not recognise their equal worth. Subjecting Kantian ethics and utilitarianism to the process of reflective equilibrium lends support to the idea that we need a pluralistic approach that would accommodate our moral intuitions regarding both the equal value of whole lives and the additive value of life-years. (shrink)

This paper examines the metaphysical question of 'ensoulment' in relation to the theory, put forward in an earlier paper, that human life begins when the newly formed body organs and systems of the embryo begin to function as an organised whole, at which stage there is evidence of a change of nature. Although Roman Catholic theology teaches that a human being is a union of physical body and spiritual soul, it is incorrect to interpret this in a dualistic sense. The (...) meaning of 'soul' is considered and the conclusion reached that although both in the religious context and apart from it abortion is difficult to justify at any stage after conception, it does not follow that the use of 'spare' In Vitro Fertilisation (IVF) embryos should be rejected. If 'ensoulment' does not occur until the new organism functions as a whole then a decision not to make use of IVF embryos for medical purposes would be a heavy responsibility and not a 'safe' way out. (shrink)

The tensions between monarchy and republicanism are a dominant feature of Machiavelli’s political works, and both the so-called ‘monarchical’ work, The Prince, and the more overtly republican Discourses laud the benefits of republicanism and warn against relying on hereditary monarchy. This article compares Machiavelli’s proposals, advanced in 1520, for a mixed constitution for the city of Florence with those of his younger compatriot, Donato Giannotti, who became secretary to the Ten in the last Florentine republican government of 1527-30. As (...) the historical context changed, and Florence progressed from republic to absolutist duchy under the later Medici, Giannotti was exiled from the city and the article examines how his proposed reforms of 1528 and then his major work, Della republica fiorentina, drafted and redrafted between 1531 and 1538 as the politics of Florence changed, reinforce and expand Machiavelli’s views of politico vivere in a republican polity like Florence whose constitution was being dramatically rewritten. (shrink)

Mechanistic explanation involves the attribution of functions to both mechanisms and their component parts, and function attribution plays a central role in the individuation of mechanisms. Our aim in this paper is to investigate the impact of a perspectival view of function attribution for the broader mechanist project, and specifically for realism about mechanistic hierarchies. We argue that, contrary to the claims of function perspectivalists such as Craver, one cannot endorse both function perspectivalism and mechanistic hierarchy realism: if (...) functions are perspectival, then so are the levels of a mechanistic hierarchy. We illustrate this argument with an example from recent neuroscience, where the mechanism responsible for the phenomenon of ephaptic coupling cross-cuts the more familiar mechanism for synaptic firing. Finally, we consider what kind of structure there is left to be realist about for the function perspectivalist. (shrink)

This paper proposes to examine Daniel Cohen’s recent attempt to apply virtues to argumentation theory, with special attention given to his explication of how open-mindedness can be regarded as an argumentational or critical virtue. It is argued that his analysis involves a contentious claim about open-mindedness as an epistemic virtue, which generates a tension for agents who are simultaneously both an arguer and a knower (or who strive to be both). I contend that this tension can be eased (...) or resolved by clarifying the nature of open-mindedness and by construing open-mindedness in terms of its function. Specifically, a willingness to take a novel viewpoint seriously is sufficient for making open-mindedness both an epistemic and a critical virtue. (shrink)

This paper outlines and defends a novel position in the color realism debate, namely structural realism. This position is novel in that it dissociates the veridicality of color attributions from the claim that physical objects are themselves colored. Thus, it is realist about color in both the semantic and epistemic senses, but not the ontic sense. The generality of this position is demonstrated by applying it to other “secondary qualities,” including heat, musical pitch, and odor. The basic argument proceeds (...) by analogy with the theory of measurement. I argue that perceptual experiences are analogous to numerical structures in that they are suitable for measurement, but only report measured values after they have been linked to states of a measurement device via calibration. Since the calibration of our sensory apparatus varies with context, it is inappropriate to identify specific experiences with specific properties in the world. Rather, it is structural relations between possible experiences which represent relations between possible external properties, and it is at the level of these structural relationships that veridicality is appropriately assessed. (shrink)

Proposes a theory of fine art which will account both for the artist's ability to "originate" novel individuals and for the intelligibility of the work of fine art. The theory recommended for this purpose in the second and systematic portion of the book seeks to establish the possibility of interpreting the work of art as "a structure in which what is made, what is symbolized, and what is expressed are complementary aspects of the same object or event." The author's (...) historic insights in the book's first part make it well worth reading, but it is not clear that he offers much by way of illuminating the problem of freedom beyond saying that "if...fine art produces unique but intelligible symbols, it does so because for the individual there is a class. "An extensive bibliography is appended. --C. M. (shrink)

Recent philosophy of measurement has emphasized the existence of both diachronic and synchronic “loops,” or feedback processes, in the epistemic achievements of measurement. A widespread response has been to conclude that measurement outcomes do not convey interest-independent facts about the world, and that only a coherentist epistemology of measurement is viable. In contrast, I argue that a form of measurement realism is consistent with these results. The insight is that antecedent structure in measuring spaces constrains our empirical procedures such (...) that successful measurement conveys a limited, but veridical knowledge of “fixed points,” or stable, interest- independent features of the world. (shrink)

The Doctrine of Specific Nerve Energies has been and continues to be enormously influential in the physiology, psychology, and philosophy of perception. In simple terms, the Doctrine states that we directly perceive in the first instance the activity of our nerves, rather than properties in the external world. The canonical early statement of the Doctrine by the physiologist Johannes Peter Müller had profound influence on both the phi- losophy and psychology of the 19th and early 20th centuries, especially as (...) reformulated and transmitted by Müller’s student Helmholtz. A common assumption of historical and ongoing debate about the Doctrine has been its supposedly idealist or skeptical implications. What is not commonly recognized is that Müller himself ad- vanced a realist interpretation along lines that would be recognized today as a form of epistemic structural realism. This paper analyzes Müller’s structuralist epistemology in detail and reconstructs his articulation and defense of the Doctrine of Specific Nerve Energies in its canonical form. Part II argues for the continued im- portance of the Doctrine and its structuralist interpretation for contemporary psychology, philosophy of per- ception, and history of philosophy of science. (shrink)

This is a book about the between: the place that "does not occupy any space", between phenomenology and structuralism. Silverman writes from this place between Husserl, Heidegger, Sartre, and Merleau-Ponty, on one side, and de Saussure, Piaget, Levi-Strauss, Lacan, and Barthes, on the other. His writing draws from all of the figures mentioned, yet does not align itself with any one of them. The place between phenomenology and structuralism is both historically and conceptually beyond both traditions: what Silverman (...) says about the writing of Foucault and Derrida might as well be applied to his own, that is, that this writing "might be described as a post-phenomenology post-structuralism". But this is not the amorphous location of a loosely constructed eclecticism; it is a carefully conceived philosophical doctrine designed for two interrelated purposes. (shrink)

Concept Pluralism and Concept Eliminativism are two positions recently proposed in the philosophy and the psychology of concepts. Both of these theories are motivated by the view that all current theories of concepts are empirically and methodologically inadequate and hold in common the assumption that for any category that can be represented in thought, a person can possess multiple, distinct concepts of it. In this paper, I will challenge these in light of a third theory, Conceptual Atomism, which addresses (...) and dispels the contentious issues. In particular, I contend that Conceptual Atomism, when properly understood, is empirically adequate and can overcome difficulties that plague Pluralism and Eliminativism. (shrink)

Open-mindedness is widely regarded as an epistemic virtue and, more recently, a moral one: its exercise is supposed to be conducive not only to the acquisition of epistemic goods such as truth, knowledge, and understanding, but also to the development of moral goods such as the promotion of social cohesion and the fostering of people’s respect and care for one another. This glossy view of open-mindedness, however, has come under challenge. Critics have argued that adopting a default stance of openness (...) can be detrimental to our epistemic and moral selves, especially in today’s world where fake news, attacks on the idea of truth, and blatant lies abound. The articles in this symposium by Howard Curzer and Jessica Gottlieb and by Matt Ferkany represent some of these challenges. Concerned with the question of when it is safe to exercise open-mindedness, both seek to identify the potential hazards that may arise as a result being open-minded and to propose ways to curtail those hazards. In this paper, I will assess each of their arguments in turn. (shrink)

We describe and analyse how large herbivores strongly diminished a woody vegetation, dominated by the unpalatable shrub Sambucus nigra L. and changed it into grassland. Density of woody species and cover of vegetation were measured in 1996, 2002 and 2012 in the grazed Oostvaardersplassen. In 2002 and 2012 we also measured density and cover in an ungrazed control site. In 2002 we measured intensity of browsing and bark loss of Sambucus shrubs in the grazed and control sites. In the grazed (...) site the density of Sambucus and Salix spp. declined significantly between 1996 and 2012, and large areas changed into grassland. In the control site the density of Sambucus increased significantly during this period, the density of Salix spp. did not change, and the vegetation consisted of a mixture of woody species and a field layer dominated by tall herbs. In 2002 and 2012 the percentages of dead Sambucus shrubs were significantly higher in the grazed site than in the control site. In 2002 the percentages of twigs browsed and ring barked stems of Sambucus shrubs were significantly higher in the grazed site than in the control site. Our results show that debarking caused mature Sambucus shrubs to die, but that heavy browsing may have helped this process. Our results also point to a significant neighbour effect on the break down of Sambucus, suggesting that Aggregational Resistance and Associational Palatability were both active. Essential conditions for the break down of this woody vegetation were the presence of large herbivores, the low ratio between the areas of summer and winter feeding habitats and the competition amongst herbivores. Browsing may have been responsible for seedling death, as seedlings were found only in the control site and not on the old and newly established grasslands in the grazed site. (shrink)

Everybody negotiates. But not everybody negotiates ethically. One driver of unethical negotiation behavior is power. Yet, we still haven’t discovered the principalmoderating and mediating influences between power and ethical negotiation behavior. In this pair of experimental studies we’re interested in finding out how resilience and moral identity affect an individual’s ethical behavior in both simple and complex negotiations when primed for power.

The combination of money and intimacy, particularly in the context of paid caring, can be difficult, given the tendency to view them as belonging to separate spheres. This research studied paid caring within the context of breastfeeding and labor support, using 72 interviews with lactation consultants, doulas, clients, and health care professionals, as well as 150 hours of ethnographic observation. Building upon the work of Viviana Zelizer, I examined the relational work of lactation consultants, doulas, and their clients, finding that (...) this process is highly influenced by the way gender is mapped onto the separate spheres dichotomy. Lactation consultants, doulas, and their clients drew boundaries around their social relations to construct them as different from family care in order to legitimate the combination of money and intimacy. Lactation consultants and doulas both experienced tension in determining appropriate transactions and media for their care work, which illustrates how the separate spheres ideology can perpetuate the relative low pay of care work. (shrink)

Recordings of neuronal activity in the monkey superior colliculus (SC) suggest that the two apparently independent effects of a visual distractor on both temporal (latency) and spatial (metrics) saccade parameters may be the result of lateral interactions between subpopulations of saccade-related neurons located at different sites on the motor map of the superior colliculus. One subpopulation is activated during the planing and initiation of a saccade; the other is activated by the appearance of a distractor. The inhibitory or facilitative (...) nature of this interaction depends on the distance between the distractor and the target and is consistent with the complex pattern of intrinsic and commissural collicular connections. (shrink)

A cut or crush injury to a peripheral nerve results in the degeneration of that portion of the axon isolated from the cell body. The rapid degeneration of this distal segment was for many years believed to be a process intrinsic to the nerve. It was believed that Schwann cells both phagocytosed degenerating axons and myelin sheaths and also provided growth factors to promote regeneration of the damaged axons. In recent years, it has become apparent that the degenerating distal (...) segment is invaded by monocytes from the blood. We will review the evidence that these recruited macrophages play a role in both degeneration and regeneration of peripheral nerve axons after injury and consider whether the slow degeneration and poor monocyte recruitment in the central nervous system may contribute to the poor regeneration there. (shrink)

Sows housed in stalls are kept insuch extreme confinement that they are unableto turn around. In some sectors of the porkindustry, sows are subjected to this degree ofconfinement for almost their entire lives(apart from the brief periods associated withmating). While individual confinement isrecognized by farmers and animal welfarecommunity organizations alike, as a valuabletool in sow husbandry (to mitigate againstaggression), what remains questionable from ananimal welfare point of view is the necessityto confine sows in such small spaces.In 2001, the Australian Journal (...) ofAgricultural Research published a reviewarticle on the science associated with the useof the sow stall, and claimed that ``noscientific evidence to support therecommendation in the Code of Practice advisingagainst housing of sows in stalls followed byhousing in crates'''' (Barnett et al., 2001, p. 21).If all the available scientific publications onthe animal welfare implications of sow stallsare consulted (many of which did not feature inthe above review), then one will indeed findscientific evidence to support recommendationsagainst the housing of sows in stalls. Becausethere is science on both sides of this policydivide, the argument to defend the use of sowstalls, therefore, is not one of science vspublic opinion, but one of ethics. (shrink)

Tuberculosis (TB) is a potentially fatal infectious disease that, in Aotearoa New Zealand (NZ), inequitably affects Asian, Pacific, Middle Eastern, Latin American, and African (MELAA), and Māori people. Medical research involving genome sequencing of TB samples enables more nuanced understanding of disease strains and their transmission. This could inform highly specific health interventions. However, the collection and management of TB isolate samples for research are currently informed by monocultural biomedical models often lacking key ethical considerations. Drawing on a qualitative kaupapa (...) Māori–consistent study, this paper reports on preliminary discussions with groups of Māori, Pacific, and Afghan people in NZ, whose communities have been harmed by TB and TB stigma. Participants’ discussions highlight key concerns and meanings that ought to inform the development of guidelines and a more robust consultative process for the governance of how TB isolate samples are collected and used both retrospectively and in future research. We argue for ethical processes to be culturally nuanced and community-generated, flexible and meaningful, and situated in relation to the physical and symbolic effects of TB. We discuss the significance of Indigenous data sovereignty, rights, and kāwanatanga (governorship) in shaping a multicultural data sovereignty model. (shrink)

Emotion-processing impairment represents a risk factor for the development of somatic illness, affecting negatively both health-related quality of life and disease management in several chronic diseases. The present pilot study aims at investigating the associations between alexithymia and depression, anxiety, and HRQoL in patients with Hashimoto’s thyroiditis ; examining the association between these three psychological conditions together with HRQoL, and thyroid autoantibodies status as well as thyroid echotexture in patients with HT; and comparing the intensity of all these clinical (...) psychological features in patients with HT versus controls. Twenty-one patients with serologically or ultrasonographically verified HT and 16 controls with non-toxic goiter or postsurgical hypothyroidism were recruited for this study. Serum thyrotropin and free thyroxine, as well as thyroid autoantibodies, were assayed. Alexithymia, depression, anxiety, and HRQoL were assessed with Toronto Alexithymia Scale; Beck Depression Inventory, second edition; Hamilton Anxiety Rating Scale; and Health Survey Short-Form 36, respectively. A negative relationship between the difficulty to describe feelings and the cognitive component of depression was found. Besides, patients with seronegative HT had lower somatic anxiety than patients with HT who tested positive. Besides, no statistically significant difference was found between patients with HT and controls with regard to somatic anxiety. The present study suggests the relevance of alexithymia in patients suffering from HT, which may be intertwined with a possible state of underreported depression that is mainly expressed through physical complaints. Promoting the capability to describe and communicate feelings could contribute to psychological elaboration and coping with the disease and, consequently, to the improvement of self-management and perceived HRQoL. (shrink)

The results of an empirical study into the perceptions of “hands-on” experts concerning the welfare of (non-human) animals in traveling circuses in the Netherlands are presented. A qualitative approach, based on in-depth conversations with trainers/performers, former trainers/performers, veterinarians, and an owner of an animal shelter, conveyed several patterns in the contextual construction of perceptions and the use of dissonance reduction strategies. Perceptions were analyzed with the help of the Symbolic Convergence Theory and the model of the frame of reference, consisting (...) of knowledge, convictions, values, norms, and interests. The study shows that the debate regarding animals in circuses in the Netherlands is centered on the level of welfare that is required; the importance of animal welfare is not disputed. Arguments that were used differed according to the respondents’ specific backgrounds and can be placed on a gradient ranging from the conviction that the welfare of animals in circuses is sufficiently warranted and both human and animal enjoy the performance (right end), to the conviction that animal welfare in circuses is negative, combined with the idea that the goal of entertaining people does not outweigh that (left end). The study confirms that perceptions reflect people’s contexts, though the variety in scopes suggests that the (inter)relations between people and their context are complex in nature. Evidence of cognitive dissonance was abundant. Coping strategies were found to be used more by respondents towards the right end of the gradient, suggesting that those respondents experience more ambivalence. This encountered pattern of association between position on the gradient and frequency of dissonance reduction strategies calls for further research on the type of ambivalent feelings experienced. The authors argue that, to come to an agreement about the welfare of animals in circuses, including the way this welfare should be guaranteed, stakeholders from different contexts need to engage in a dialogue in which a distance is taken from right/wrong-schemes and that starts from acceptance of dilemmas and ambiguity. (shrink)

This article presents a novel full-reference image quality assessment algorithm by depicting the sub-band characteristics in the wavelet domain. The proposed image quality assessment method is based on energy estimation in the wavelet-transformed image. Image QA is achieved by applying a multilevel wavelet decomposition on both the original and the enhanced image. Next, the wavelet energy and vector are computed to obtain the percentage of the energy that corresponds to the approximation and the details, respectively. Further, the approximate and (...) detailed energy levels of both the original and the enhanced images are compared to formulate an image quality assessment. Numerous experiments are conducted on a dozen of image enhancement algorithms. The results presented show that the image with poor contrast in the foreground than the background has continuous regular coefficient values. The probability density function for such an image has a relatively lower WE and skewness compared with the background. The proposed scheme not only evaluates the global information of an image but also estimates the fine, detailed changes in an enhanced image. Thus, the proposed metric serves as an objective and effective FR criterion for color image QA. The experimental results presented confirm that the proposed WE metric is an efficient and useful metric for evaluating the quality of the color image enhancement. (shrink)

This research explores the contextual approach within Christian-Jewish religious education, addressing a notable gap in existing literature and offering fresh insights into the application of the Contextual Teaching and Learning (CTL) model within Christian contexts. Through a qualitative literature study employing a three-step methodology, including an in-depth analysis of Deuteronomy 11:19–20, this study reveals that this biblical text provides both educational guidance and theological significance, serving as a foundational support for the CTL model in Christian-Jewish religious education. The integration (...) of digital media into biblical sources holds promise for future research, while the central challenge lies in harmonising life experiences and empirical phenomena with biblical reflections to seamlessly integrate inquiry processes and pedagogical phases, with potential avenues for further exploration in scripture models endorsing CTL. This research provides valuable insights for educators, parents and policymakers in Indonesia and beyond, advancing educational research in contextualised teaching models within religious education.Contribution: This article demonstrates that the CTL model in the digital era has the potential to revolutionise religious education and profoundly impact learners, making it a significant scientific contribution in the context of Christian-Jewish religious education. (shrink)

lecting statistics about missing bindings and macros, and other errors. This guides debugging and development efforts, leading to iterative improvements in both the tools and the quality of the converted corpus. The build system thus serves as both a production conversion engine and software test harness. We have now processed the complete arχiv collection through 2006 consisting of more than 400,000 documents (a complete run is a processor-yearsize undertaking), continuously improving our success rate. We are now able to (...) convert more than 90% of these documents to XHTML+MathML. We consider over 60% to be successes, converted with no or minor warnings. While the remaining 30% can also be converted, their quality is doubtful, due to unsupported macros or conversion errors. (shrink)

Among bioethicists and members of the public, genetics is often regarded as unique in its ethical challenges. As medical researchers and clinicians increasingly combine genetic information with a range of non-genetic information in the study and clinical management of patients with common diseases, the unique ethical challenges attributed to genetics must be re-examined. A process of genetic routinisation that will have implications for research and clinical ethics, as well as for public conceptions of genetic information, is constituted by the emergence (...) of new forms of genetic medicine, in which genetic information is interpreted in a multifactorial frame of reference. Although the integration of genetics in medical research and treatment may be a helpful corrective to the mistaken assumptions of genetic essentialism or determinism, the routinisation of genetics may have unintended consequences for the protection of genetic information, perceptions of non-genetic information and the loss of genetic research as a laboratory for exploring issues in research and clinical ethics. Consequently, new ethical challenges are presented by the increasing routinisation of genetic information in both biomedical and public spheres. (shrink)

The results of an empirical study into the perceptions of “hands-on” experts concerning the welfare of (non-human) animals in traveling circuses in the Netherlands are presented. A qualitative approach, based on in-depth conversations with trainers/performers, former trainers/performers, veterinarians, and an owner of an animal shelter, conveyed several patterns in the contextual construction of perceptions and the use of dissonance reduction strategies. Perceptions were analyzed with the help of the Symbolic Convergence Theory and the model of the frame of reference, consisting (...) of knowledge, convictions, values, norms, and interests. The study shows that the debate regarding animals in circuses in the Netherlands is centered on the level of welfare that is required; the importance of animal welfare is not disputed. Arguments that were used differed according to the respondents’ specific backgrounds and can be placed on a gradient ranging from the conviction that the welfare of animals in circuses is sufficiently warranted and both human and animal enjoy the performance (right end), to the conviction that animal welfare in circuses is negative, combined with the idea that the goal of entertaining people does not outweigh that (left end). The study confirms that perceptions reflect people’s contexts, though the variety in scopes suggests that the (inter)relations between people and their context are complex in nature. Evidence of cognitive dissonance was abundant. Coping strategies were found to be used more by respondents towards the right end of the gradient, suggesting that those respondents experience more ambivalence. This encountered pattern of association between position on the gradient and frequency of dissonance reduction strategies calls for further research on the type of ambivalent feelings experienced. The authors argue that, to come to an agreement about the welfare of animals in circuses, including the way this welfare should be guaranteed, stakeholders from different contexts need to engage in a dialogue in which a distance is taken from right/wrong-schemes and that starts from acceptance of dilemmas and ambiguity. (shrink)

The dominant conventionalist view explains the wrong of breaking a promise as failing to do our fair share in supporting the practice of promise-keeping. Yet, this account fails to explain any unique moral standing that a promisee has to demand that the promisor keep the promise. In this paper, I provide a conventionalist response to this problem. In any cooperative practice, participants stand as both beneficiary and contributor. As a beneficiary, they are morally required to follow the rules of (...) the practice. As a contributor, they have claims on other participants to follow the rules. According to the rules of promise-keeping, a promisee has a unique claim on the promisor, and the personal wrong of breaking a promise should be understood as the violation of this unique and practice-dependent claim. (shrink)

Rawlsians argue for principles of justice that apply exclusively to the basic structure of society, but it can seem strange that those who accept these principles should not also regulate their choices by them. Valid moral principles should seemingly identify ideals for both institutions and individuals. What justifies this nonintuitive distinction between institutional and individual principles is not a moral division of labor but Rawls’s dual commitments to conventionalism and constructivism. Conventionalism distinguishes the relevant ideals for evaluating institutions from (...) those for evaluating actions, while constructivism explains why this distinction is morally fundamental. (shrink)

This paper examines the challenges that climate change raises for animal agriculture and discusses the contributions that may come from a virtue ethics based approach. Two scenarios of the future role of animals in farming are set forth and discussed in terms of their ethical implications. The paper argues that when trying to tackle both climate and animal welfare issues in farming, proposals that call for a reorientation of our ethics and technology must first and foremost consider the values (...) that drive current livestock production. This paper sets forth and discusses the broader societal values implicit in livestock production. We suggest that a virtues approach would improve our thinking and practice regarding animal agriculture, facilitating a move from livestock production to animal husbandry. This change in animal agriculture in a time of climate change would stress virtues such as attentiveness, responsibility, competence, and responsiveness as central elements in any mitigation or adaptation program. (shrink)

Simple Heuristics That Make Us Smart invites readers to embark on a new journey into a land of rationality that differs from the familiar territory of cognitive science and economics. Traditional views of rationality tend to see decision makers as possessing superhuman powers of reason, limitless knowledge, and all of eternity in which to ponder choices. To understand decisions in the real world, we need a different, more psychologically plausible notion of rationality, and this book provides it. It is about (...) fast and frugal heuristics--simple rules for making decisions when time is pressing and deep thought an unaffordable luxury. These heuristics can enable both living organisms and artificial systems to make smart choices, classifications, and predictions by employing bounded rationality. But when and how can such fast and frugal heuristics work? Can judgments based simply on one good reason be as accurate as those based on many reasons? Could less knowledge even lead to systematically better predictions than more knowledge? Simple Heuristics explores these questions, developing computational models of heuristics and testing them through experiments and analyses. It shows how fast and frugal heuristics can produce adaptive decisions in situations as varied as choosing a mate, dividing resources among offspring, predicting high school drop out rates, and playing the stock market. As an interdisciplinary work that is both useful and engaging, this book will appeal to a wide audience. It is ideal for researchers in cognitive psychology, evolutionary psychology, and cognitive science, as well as in economics and artificial intelligence. It will also inspire anyone interested in simply making good decisions. (shrink)

In their environment, plants are continuously submitted to natural stimuli such as wind, rain, temperature changes, wounding, etc. These signals induce a cascade of events which lead to metabolic and morphogenetic responses. In this paper the different steps are described and discussed starting from the reception of the signal by a plant organ to the final morphogenetic response. In our laboratory two plants are studied: Bryonia dioica for which rubbing the internode results in reduced elongation and enhanced radial expansion and (...) Bidens pilosa for which the response occurs at distance, hence pricking the cotyledon of a plantlet induces the growth inhibition of both the hypocotyl and the axillary bud of the pricked cotyledon. Reception of the signal and transmission of the message. In Bryonia the signal is received by epidermal cells while in Bidens they are the cells adjacent to the midrib of the cotyledon which receive the mechanical signal. In both plants the message is transmitted via a wave of electric depolarization. This latter is composed of an action potential associated with a slow wave whose transmission rates are respectively 1cm s−1 and 1 mm s−1. Recent results have shown the involvement of Ca2+ in the triggering of the slow wave and the role of the H+ pump during the slow wave. Transient and fast biochemical responses. An entry of extraceilular Ca2+ into the cells and a transient increase in IP3 occur within seconds following the mechanical stimulus. At the same time, the membrane becomes more fluid, correlated with qualitative changes in phospholipids. The rapid increase in the concentration of peroxidated lipids may be correlated with ethylene biosynthesis which is stimulated after rubbing. Other parameters such as cytoplasmic pH, relative water content, hydric potential, membrane potential and modifications of K+, Mg2+-ATPase and Ca2+-ATPase activities, play a key role in the early responses induced by the traumatisms. Irreversible-biochemical responses. The mechanical stimulus performed on a Bryonia internode induces an acceleration of: i) enzymatic activities related to the lignification, ii) esterification of phenolic acids in the cell wall. Consequently the lignification process is accelerated. Storage of the information. After being received by the target cells the information can be stored during several days before being expressed. At the level of cotyledonary bud, the first message, previously stored, can be expressed or not by a second treatment. Bidens thus behaves as if it was able to “store” and to “retrieve” morphogenetic messages, using a sort of rudimentary memory. The nuclei of the bud cells of the pricked cotyledon show that these cells, initially in G2 phase, divide and then remain in the G1 phase. In Bryonia, calli derived from young stimulated internodes, keep thigmomorphogenetic characteristics during several weeks. In the last part of this paper the particularity of our plant model which permits a study of the transmission and storage of the message, is underlined. The links between the different steps induced by the stimulus are discussed. Special attention is devoted to second messengers and to the amplification of the message. (shrink)

In his own writings, Rawls purposively used only a loose characterization of the basic structure, but two prominent misinterpretations highlight the current need for a more detailed account. First, G.A. Cohen argues that the Rawlsian focus on the basic structure is arbitrary due to the Rawlsian appeal to profound effects. Second, some theorists conflate the justification of coercion with the assessment of a basic structure by defining the basic structure as the coercive structure. Both misinterpretations can be corrected by (...) carefully specifying what social institutions are and explaining which social institutions come together to form the basic structure of society. (shrink)

This paper pushes back against the Democritean-Newtonian tradition of assuming a strict conceptual dichotomy between spacetime and matter. Our approach proceeds via the more narrow distinction between modified gravity/spacetime and dark matter. A prequel paper argued that the novel field Φ postulated by Berezhiani and Khoury's 'superfluid dark matter theory' is as much matter as anything could possibly be, but also below the critical temperature for superfluidity as much spacetime as anything could possibly be. Here we introduce and critically evaluate (...) three groups of interpretations that one should consider for such Janus-faced theories. The consubstantiality interpretation holds that Φ is both matter and a modification of spacetime, analogously to the sense in which Jesus is both human and god. The fundamendalist interpretations consider for each of these roles whether they are instantiated fundamentally or emergently. The breakdown interpretations focus on the question of whether Φ signals the breakdown, in some sense to be specified, of the MG-DM dichotomy and perhaps even the broader spacetime–matter distinction. More generally, it is argued that hybrid theories urge a move towards a single space of theories, rather than two separate spaces of spacetime theories and matter theories, respectively. (shrink)

In this accessible and comprehensive work, Robert Solomon and Kathleen Higgins cover the entire history of philosophy--ancient, medieval, and modern, from cultures both East and West--in its broader historical and cultural contexts. Major philosophers and movements are discussed along with less well-known but interesting figures. The authors examine the early Greek, Indic, and Chinese philosophers and the mythological traditions that preceded them, as well as the great religious philosophies, including Christianity, Hinduism, Judaism, and Taoism. Easily understandable to students without (...) specialized knowledge of philosophy, A Short History of Philosophy demonstrates the relevance of philosophy to our times, illuminating the impact of the revolutions wrought by science, industry, colonialism, and sectarian warfare; the two world wars and the Holocaust; and the responses of philosophy in the schools of existentialism, postmodernism, feminism, and multiculturalism. In addition, the authors provide their own twists and interpretations of events, resulting in a broad view of the nature of philosophy as an intellectual discipline and its sometimes odd and dramatic consequences. (shrink)

The wish to extend the human lifespan has a long tradition in many cultures. Optimistic views of the possibility of achieving this goal through the latest developments in medicine feature increasingly in serious scientific and philosophical discussion. The authors of this paper argue that research with the explicit aim of extending the human lifespan is both undesirable and morally unacceptable. They present three serious objections, relating to justice, the community and the meaning of life.

In their environment, plants are continuously submitted to natural stimuli such as wind, rain, temperature changes, wounding, etc. These signals induce a cascade of events which lead to metabolic and morphogenetic responses.In this paper the different steps are described and discussed starting from the reception of the signal by a plant organ to the final morphogenetic response. In our laboratory two plants are studied: Bryonia dioica for which rubbing the internode results in reduced elongation and enhanced radial expansion and Bidens (...) pilosa for which the response occurs at distance, hence pricking the cotyledon of a plantlet induces the growth inhibition of both the hypocotyl and the axillary bud of the pricked cotyledon. (shrink)

The fact that many modal operators are part of an adjunction is probably folklore since the discovery of adjunctions. On the other hand, the natural idea of a minimal propositional calculus extended with a pair of adjoint operators seems to have been formulated only very recently. This recent research, mainly motivated by applications in computer science, concentrates on technical issues related to the calculi and not on the significance of adjunctions in modal logic. It then seems a worthy enterprise ( (...) class='Hi'>both for these contemporary topical pursuits and also for historical interest) to trace the concept of adjunction back to the origins of the algebraic semantics of modal logic and to make explicit its ubiquity in this branch of mathematics. (shrink)

This study examines the relation between firms' corporate philanthropic giving and their performance in three other social domains - employee relations, environmental issues, and product safety. Based on a sample of 384 U.S. companies and using data pooled from 1998 through 2000, we find that worse performers in the other social areas are both more likely to make charitable contributions and that the extent of their giving is larger than for better performers. Analyses of each separate area of social (...) performance, however, indicate that the relation between giving and negative social performance only holds for the environmental issues and product safety areas. We find no significant association between corporate philanthropy and employee relations concerns. In general, these findings suggest that corporate philanthropy may be more a tool of legitimization than a measure of corporate social responsibility. (shrink)

Alchemy is central to Jung's hypothesis of the collective unconscious. In this volume he begins with an outline of the process and aims of psychotherapy, and then moves on to work out the analogies between alchemy, Christian dogma and symbolism and his own understanding of the analytic process. Introducing the basic concepts of alchemy, Jung reminds us of the dual nature of alchemy, comprising both the chemical process and a parallel mystical component. He also discusses the seemingly deliberate mystification (...) of the alchemists. Finally, in using the alchemical process as providing insights into individuation, Jung emphasises the importance of alchemy in relating to us the transcendent nature of the psyche. (shrink)

The precise position to be assigned to the Categories in the Aristotelian system has always been somewhat of a puzzle. On the one hand, they seem to be worked into the warp of its texture, as in the classification of change, and Aristotle can argue from the premiss that they constitute an exhaustive division of the kinds of Being . On the other hand, both in the completed scheme of his logic and in his constructive metaphysic they retire into (...) the background, giving place to other notions, such as causation, change, actuality and potentiality. Investigation has, moreover, been hampered, especially in Germany, by attempts to correlate them with the Kantian Categories, with which they have obvious points of contact. But Kant's formal a priori concepts by which the mind makes for itself a world, to use Mr. Bosanquet's phrase, imply an attitude to knowledge and reality so utterly opposed to the Aristotelian that the comparison has tended to confusion rather than elucidation. Scholars now realize better that the Aristotelian Categories can only be understood in connexion with the problems of Aristotle's own age. (shrink)

Upshot: Gibsonian and enactivist thinkers appear to diverge primarily with respect to the emphasis placed on the contributions of the organism to perception-action. Enactivists claim that a fundamental asymmetry in the organism-environment relationship should be credited for the existence of meaning in the world. Gibsonians counter that theory must reckon with both the asymmetry and symmetry between organism and environment as well as with the role of specificational information in underwriting their coordination.

We are living in an unprecedented era of biomedical revolution. Medicine is remaking humans, and controversy surrounds such topics as abortion, artificial organs, brain circuitry, eugenics, euthanasia, and gene therapy. At the same time, medical advances are posing complex ethical problems for both patients and professionals. The most comprehensive and up-to-date collection of its kind, Case Studies in Biomedical Ethics: Decision-Making, Principles, and Cases explores fundamental ethical questions arising from real situations faced by health professionals, patients, and others. Featuring (...) a wide range of more than 100 case studies drawn from current events, court cases, and physicians' experiences, the book is divided into three parts. Part I presents a basic framework for ethical decision-making in healthcare, covering such issues as separating evaluative questions from questions of fact; distinguishing between ethical and nonethical evaluations; and identifying the source of ethical judgments. Expanding upon this framework, Part II explains the ethical principles: beneficence and nonmaleficence, justice, respect for autonomy, veracity, fidelity, and avoidance of killing. Parts I and II provide students with the background to analyze the ethical dilemmas presented in Part III, which features cases on a broad spectrum of issues including abortion, genetics, mental health, confidentiality, health insurance, experimentation on humans, the right to refuse treatment, and death and dying. Each case is accompanied by the authors' commentary, which guides students in considering the issues. Ideal for undergraduate and graduate courses in biomedical ethics, bioethics, and medical ethics, Case Studies in Biomedical Ethics incorporates opening text boxes in each chapter that cross-reference relevant cases in other chapters. It also includes an appendix of important ethical codes and a glossary of key terms. (shrink)

The fact that many modal operators are part of an adjunction is probably folklore since the discovery of adjunctions. On the other hand, the natural idea of a minimal propositional calculus extended with a pair of adjoint operators seems to have been formulated only very recently. This recent research, mainly motivated by applications in computer science, concentrates on technical issues related to the calculi and not on the significance of adjunctions in modal logic. It then seems a worthy enterprise ( (...) class='Hi'>both for these contemporary topical pursuits and also for historical interest) to trace the concept of adjunction back to the origins of the algebraic semantics of modal logic and to make explicit its ubiquity in this branch of mathematics. (shrink)

The use of genetic testing and neuroscientific evidence in legal trials raises several issues. Often their interpretation is controversial: the same evidence can be used to sustain both the prosecution’s and defense’s argument. A recent Italian case confirms such concerns and stresses other relevant related questions.