Whenever a structure with a particularly interesting computability-theoretic property is found, it is natural to ask whether similar examples can be found within well-known classes of algebraic structures, such as groups, rings, lattices, and so forth. One way to give positive answers to this question is to adapt the original proof to the new setting. However, this can be an unnecessary duplication of effort, and lacks generality. Another method is to code the original structure into a structure in the given (...) class in a way that is effective enough to preserve the property in which we are interested. In this paper, we show how to transfer a number of computability-theoretic properties from directed graphs to structures in the following classes: symmetric, irreflexive graphs; partial orderings; lattices; rings ; integral domains of arbitrary characteristic; commutative semigroups; and 2-step nilpotent groups. This allows us to show that several theorems about degree spectra of relations on computable structures, nonpreservation of computable categoricity, and degree spectra of structures remain true when we restrict our attention to structures in any of the classes on this list. The codings we present are general enough to be viewed as establishing that the theories mentioned above are computably complete in the sense that, for a wide range of computability-theoretic nonstructure type properties, if there are any examples of structures with such properties then there are such examples that are models of each of these theories. (shrink)

Here is an in-depth look at the role myth, mortality, and religion play in J. R. R. Tolkien's works such as The Hobbit, The Lord of the Rings, and The Silmarillion -- including Tolkien's private letters and revealing opinions of his own work. Richard L. Purtill brilliantly argues that Tolkien's extraordinary ability to touch his readers' lives through his storytelling -- so unlike much modern literature -- accounts for his enormous literary success. This book demonstrates the moral depth in (...) Tolkien's work and cuts through current subjectivism and cynicism about morality. A careful reader will find a subtle religious dimension to Tolkien's work -- all the more potent because it is below the surface. Purtill reveals that the author's fantasy stories creatively incorporate profound religious and ethical ideas. For example, Purtill shows us how hobbits reflect both the pettiness of unimaginative parochial humanity and the unexpected heroism of ordinary people in crisis. Purtill effectively addresses larger issues of the place of myth, the relation of religion and morality to literature, the relation of Tolkien's work to traditional mythology, modern fantasy and science fiction, and the lessons Tolkien's work teaches that are applicable to our own lives. Book jacket. (shrink)

Constantius, as though the Temple of Janus had been closed and all enemies had been laid low, was longing to visit Rome and, following the death of Magnentius, to hold a triumph, without a victory title and after shedding Roman blood. For he did not himself defeat any belligerent nation or learn that any had been defeated through the courage of his commanders, nor did he add anything to the empire, and in dangerous circumstances he was never seen to lead (...) from the front, nor even to be among the front ranks. But he wanted to display an exaggeratedly long procession, standards stiff with gold and the beauty of his attendants, to a population who were living more peacefully, neither anticipating nor wishing to see this or anything like it. For perhaps he was unaware that some earlier emperors had been content with lictors in peacetime, but when the heat of battle could not allow inactivity, one of them had entrusted himself to a small fishing boat, blasted by raging gales, another had followed the example of the Decii and offered up his life in a vow for the state, and another had himself explored the enemy camp alongside the regular soldiers; that, in short, various of them had won renown for magnificent deeds, and so committed their glories to the distinguished memory of posterity. …When he was approaching the city, observing with a serene expression the respectful attendance of the Senate, and the venerable likenesses of the patrician families, he thought, not like Cineas, the legate of Pyrrhus, that a multitude of kings had been assembled together, but rather that this was the refuge of the whole world [cumque urbi propinquaret, senatus officia, reuerendasque patriciae stirpis effigies, ore sereno contemplans, non ut Cineas ille Pyrrhi legatus, in unum coactam multitudinem regum, sed asylum mundi totius adesse existimabat]. Next, when he turned his gaze to the general populace, he was astonished at the speed with which every type of men from everywhere had flowed into Rome. As though he were trying to terrify the Euphrates or the Rhine with the sight of arms, with the standards in front of him on each side, he sat alone in a golden chariot, glittering with the shimmer of many different precious stones, whose flashes seemed to produce a flickering light. After many others had preceded him, he was surrounded by dragons, woven from purple cloth and affixed to the golden, bejewelled tips of spears, open to the wind with their broad mouths and so hissing as though roused with anger, trailing the coils of their tails in the wind [eumque post antegressos multiplices alios, purpureis subtegminibus texti, circumdedere dracones, hastarum aureis gemmatisque summitatibus illigati, hiatu uasto perflabiles, et ideo uelut ira perciti sibilantes, caudarumque uolumina relinquentes in uentum]. Then there came a twin column of armed men, with shields and plumed helmets, shining with glittering light, clothed in gleaming cuirasses, with armoured horsemen, whom they call clibanarii, arranged among them, masked and protected by breastplates, encircled with iron bands, so that you might have thought them to be statues finished by the hand of Praxiteles, not men [sparsique catafracti equites, quos clibanarios dictitant, personati thoracum muniti tegminibus, et limbis ferreis cincti, ut Praxitelis manu polita crederes simulacra, non uiros]. Slender rings of metal plates, fitted to the curves of the body, clothed them, spread across all their limbs, so that, in whatever direction necessity moved their joints, their clothing moved likewise, since the joins had been made to fit so well.When he was hailed as Augustus with favourable cries, [Constantius] did not shudder at the din that thundered from hills and shores, but showed himself unmoved, as he appeared in his provinces. For, when passing through high gates, he stooped his short body, and, keeping his gaze straight, as though his neck were fixed, he turned his head neither right nor left, as though an image of a man, and he was never seen to nod when the wheel shook, or to spit or wipe or rub his face or nose, or to move his hand [nam et corpus perhumile curuabat portas ingrediens celsas, et uelut collo munito, rectam aciem luminum tendens, nec dextra uultum nec laeua flectebat, tamquam figmentum hominis, nec, cum rota concuteret, nutans, nec spuens, aut os aut nasum tergens uel fricans, manumue agitans uisus est umquam]. Although this behaviour was an affectation, it, and other aspects of his more private life, were however indications of extraordinary endurance, granted to him alone, as it was given to be supposed. This passage, which describes the aduentus of Constantius II into Rome in 357, is one of the best-known episodes in the Res Gestae of Ammianus Marcellinus. This historical work was completed by the retired military officer in around 390, with the surviving books covering the period from 353 to the aftermath of the Battle of Adrianople in 378. Unsurprisingly, this passage is also one of the most debated. Throughout his work, Ammianus regularly criticized Constantius as a weak, vicious ruler, influenced by women and, in particular, eunuchs, and so contrasted him with his cousin and successor Julian, the emperor who receives the most favourable treatment within this text. The degree and nature of criticism within this particular passage has, however, been the subject of a variety of wildly differing interpretations. It is clear that, at the outset, Ammianus is inveighing against the notion of holding a triumph for victory in a civil war, but there has been debate over whether Constantius was actually celebrating a triumph or merely the anniversary of his accession. Similarly, the description of the Senate as ‘the refuge of the whole world’ has been read in contrasting ways, being regarded as derogatory by Johannes Straub, as neutral, or even positive, by Pierre Dufraigne, and as respectful by R.C. Blockley. While this passage as a whole is generally read as an attack on Constantius for his pretentions to ill-deserved military glory, it also raises the question of whether Ammianus was also criticizing Constantius for the way in which he performed his aduentus, emphasizing his pompous and autocratic behaviour in order to contrast him with Julian, who preferred to behave more like a ciuilis princeps in public. Of course, such a reading almost inevitably produces a portrait of Ammianus as an impractically nostalgic figure, harking back to a style of rule which was anachronistic in the post-Diocletianic Later Roman Empire. In addition, Ammianus also presented Julian as performing an aduentus into Constantinople in 361, employing some phrases that were similar to those used to describe Constantius’ procession in 357. Furthermore, as John Matthews has illustrated, Ammianus’ presentations of the occasions when Julian eschewed late-antique imperial protocol are not without tinges of criticism, and his judgement on the propriety of different modes of imperial behaviour varied dependent on the context. (shrink)

While Plato recommended expelling poets from the ideal society, W. H. Auden famously declared that poetry makes nothing happen. The 19 contributions to the present book avoid such polarized views and, responding in different ways to the “ethical turn” in narrative theory, explore the varied ways in which narratives encourage readers to ponder matters of right and wrong. All work from the premise that the analysis of narrative ethics needs to be linked to a sensitivity to esthetic form. The ethical (...) issues are accordingly located on different levels. Some are clearly presented as thematic concerns within the text considered, while others emerge through the presentation of character and event by means of particular narrative techniques. The objects of analysis include such well-known or canonical texts as Biblical Old Testament stories, Mark Twain’s Huckleberry Finn , J. R. R. Tolkien’s The Lord of the Rings , Vladimir Nabokov’s Lolita , Jonathan Littell’s The Kindly Ones , Ann Radcliffe’s The Italian and Matthew Lewis’s The Monk . Others concentrate on less-well-known texts written in languages other than English. There are also contributions that investigate theoretical issues in relation to a range of different examples. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Destruction and Transcendence in W. G. SebaldMark R. McCullohIFor all the Saturnine pessimism of W. G. Sebald's application of Walter Benjamin's view of historical process (an attitude toward history expounded upon at length in an influential work by Susan Sontag), the author's sense of irony about the human predicament is irrepressible. 1 Human beings seem destined to remain prisoners of various paradoxes—they both create and destroy, they are capable (...) of acts of love as well as bitterness and hate, they make efforts to document and communicate, but at the same time they tend to forget and are given to suppressing the truth, they are driven by ideals, yet remain hobbled by imperfection. Art and music, passed on from generation to generation, seem to be the most common way that human beings transcend the strictures of their imperfections, inadequacies, and their finitude. And to the extent that art indeed survives over time, and continues to be perceived and appreciated by beholders, the aesthetic enterprise succeeds. However, ultimately, as the Book of Ecclesiastes and Shelley's "Ozymandias" remind us, all human endeavor is in vain, and, to assume the perspective of physical cosmology for a moment—and in this regard Benjamin's cosmic vision appears painfully accurate—our speck of earth, dwarfed by a vast universe the true immensity of which has been revealed by the Hubble Telescope, will one day be ground to dust and debris like the rings of Saturn, and our sun will exist only as a burned-out hulk. But such a future world, devoid of beholders, and devoid of creators and their artifacts, is not Sebald's primary subject, even though it clearly forms the teleological backdrop for his third novel, The Rings of Saturn (1995, English version 1998). Rather, Sebald pursues his art in spite of a terminal prospect that will ultimately confront our [End Page 395] planet and solar system. His primary subject, the effect of trauma on individual and collective experience, is instead closely linked with the passing of Europe as a tradition, as an idea—as an idiosyncratic and innovative, but inherently corrupt contributor to cultural history. In the course of his narratives he also addresses the redemptive role of art in memorializing the past and attempting to capture the passing present. In both respects he attends to the humane and the sublime as well as the tragic and the grotesque.Paraphrasing the art historian Svetlana Alpers, one early reviewer of Sebald's novel Austerlitz (2001) points out the self-contradictory nature of preserving the transient moment in art:Why create visual art at all when everything on earth must be represented in its inexorable transitoriness; why paint earthly scenes with such incredible care and precision as if they were permanent? 2The care and precision of the painter's craft (in this case, the Dutch still-life painter David Bailly) are devoted to the representation of a scene that is by its very nature transient and even tenuous—like the scenes of sublime beauty in Sebald's fiction, the artist's depiction "courts and admits" its own fragility. What Bailly does visually, Sebald attempts in words. Take, for instance, the following passage from Vertigo, Sebald's first novel, which was titled in German (with considerably more irony) Schwindel. Gefühle 3 :At a hairpin bend I looked out of the turning bus down into the depths below and could see the turquoise surfaces of the Ferstein and Smaranger lakes, which, even when I was a child, on our first excursions into the Tyrol, had seemed to me the essence of all conceivable beauty.(p. 176)The author has already prepared the reader for this moment of awe by remarking on the otherworldly "slow-motion quality" of the waterfalls descending from the mountain cliffs and on the boulders in their screes spreading downwards into the wooded hillsides, "screes which reached from the mountains down into the forests like pale fingers into dark hair..." (p. 176). Examined closely, the passage in question suggests both the enduring power of natural beauty and, especially with its precise reference to an automobile long since out of production and unfamiliar to... (shrink)

Volume 24, Issue 5, August 2019, Page 553-562.

Bioethics and feminist scholarship has explored various justice implications of nonmedical sex selection and family balancing. However, prospective users’ viewpoints have been absent from the debate over the socially acceptable bounds of nonmedical sex selection. This qualitative study provides a set of empirically grounded perspectives on the moral values that underpin prospective users’ conceptualizations of justice in the context of a family balancing program in the United States. The results indicate that couples pursuing family balancing understand justice primarily in individualist (...) and familial terms rather than in terms of social justice for women and girls or for children resulting from sex selection. Study participants indicated that an individual’s desire for gender balance in their family is ethically complex and may not be inherently sexist, immoral, or socially consequential, particularly given the social context in which they live. Our findings suggest that the social conditions that contribute to prospective users’ desires for gender balance in their families may direct them away from recognizing or engaging broader social justice concerns relating to sexism and stratified reproduction. (shrink)

Technology has a proprietary aspect and a public good aspect. The proprietary aspect makes it profitable for firms to invest in its advance. The public aspect enables the community as a whole to benefit from technological advance. In order for technical advance to proceed rapidly and for the gams to be widely shared, there must be an appropriate balance between the proprietary and public aspects. Recent policy discussions have emphasized the proprietary aspects of technology, calling for a tightening and broadening (...) of intellectual property rights. Universities have been encouraged to be more proprietary. We may be in danger of leaning too far in this direction. (shrink)

Research on human genetic variation can present collective risks to all members of a socially identifiable group. Research that associates race or ethnicity with a genetic disposition to disease, for example, presents risks of group discrimination and stigmatization. To better protect against these risks, some have proposed supplemental community-based reviews of research on genetic differences between populations. The assumption behind these appeals is that involving members of study populations in the review process can help to identify and minimize collective risks (...) that otherwise could go unnoticed. In contrast to this position, critics have argued that supplemental community-based reviews are unnecessary, impractical, and morally problematic. This paper is our attempt to advance this debate by distinguishing the various goals of community review and the forms that it can take. (shrink)

Volume 20, Issue 2, February 2020, Page 1-4.

Academic medical centers and drug manufacturers have traditionally occupied very distinct positions with regard to public trust. As collaborations among medical researchers and pharmaceutical companies expand, however, worries about the aggressive pursuit of profit that has tarnished the reputation of the pharmaceutical industry may be transferred to medical institutions and clinical investigators, suggesting to some that biomedical research is more about increasing profit than promoting public health. Consequently, when medical institutions forge research collaborations with industry they should be mindful of (...) the potential for these relationships to erode public confidence in the integrity of clinical research.Recent events have heightened concerns about the financing of clinical research. These include the widely publicized deaths of several research volunteers, scandals at the nation's largest funder of biomedical research, and evidence of fabricated research findings in prominent medical journals. These unfortunate events have prompted many to re-examine strategies for managing industry relationships and the financial conflicts of interest they may create. (shrink)

In this essay I will try to show that there are what would appear to be some unnoticed consequences of the doctrine of divine foreknowledge. For the purposes of this discussion I will simply assume that future events are possible objects of knowledge and, hence, that foreknowledge is possible. Accordingly, I will not be concerned with discussing such questions as the status of truth-values for future contingent propositions or whether knowledge is justified true belief. Furthermore, I will not be concerned (...) with the issues involved in the claim that the doctrine of divine foreknowledge conflicts with doctrines concerning the properties of created beings, e.g., the doctrine of voluntary human action. (shrink)

Save for Anthropologists, few social scientists have been among the participants in the discussions about the appropriate structure of a ‘Universal Darwinism’. Yet evolutionary theorizing about cultural, social, and economic phenomena has a long tradition, going back well before Darwin. And over the past quarter century significant literatures have grown up concerned with the processes of change operating on science, technology, business organization and practice, and economic change more broadly, that are explicitly evolutionary in theoretical orientation. In each of these (...) fields of study, the broad proposition put forth by Darwin that change proceeds through a process involving variation, systematic selection, renewed variation... has proved both persuasive and powerful. On the other hand, the evolutionary processes involved in these areas differ in essential ways from those we now know are operative in the evolution of biological species. The objective of this essay is to highlight those differences, which a ‘Universal Darwinism’ needs to encompass, if it is to be broad enough to be a theory that is applicable to the evolution of human cultures as well as evolution in biology. (shrink)

Research on human genetic variation can present collective risks to all members of a socially identifiable group. Research that associates race or ethnicity with a genetic disposition to disease, for example, presents risks of group discrimination and stigmatization. To better protect against these risks, some have proposed supplemental community-based reviews of research on genetic differences between populations. The assumption behind these appeals is that involving members of study populations in the review process can help to identify and minimize collective risks (...) that otherwise could go unnoticed. In contrast to this position, critics have argued that supplemental community-based reviews are unnecessary, impractical, and morally problematic. This paper is our attempt to advance this debate by distinguishing the various goals of community review and the forms that it can take. (shrink)

: A standard interpretation of Kantian "maxims" sees them as expressing reasons for action, implying that we cannot act without a maxim. But recent challenges to this interpretation claim that Kant viewed acting on maxims as optional. Kant's understanding of maxims derives from Christian Wolff, who regarded maxims as major premises of the practical syllogism. This supports the standard interpretation. Yet Kant also viewed commitments to maxims as essential for virtue and character development, which supports challenges to the standard interpretation, (...) and raises questions about the coherence of Kant's overall conception of the role of maxims in practical philosophy. (shrink)

There are two quite common views which appear to be embraced by a large number of aestheticians as well as a large number of nonaestheticians. It is quite commonly believed by many of both groups that God is omniscient with respect to the future, that is, that God knows everything that will ever occur. I refer to this belief as the doctrine of divine omniprescience. It is also quite common to many of both groups to believe that literary authorship is (...) creative in the sense that by means of his composing activity an author is an agent who brings about the existence of some thing which did not exist prior to the composing activity of that agent and which would not exist without the composing activity of that agent or some similar agent. I shall call this belief the doctrine of literary creativity. What does not appear to be recognized is that these two doctrines cannot both be consistently endorsed. I argue that the two doctrines jointly entail a contradiction and I will point out some of the logical consequences of trying to avoid that contradiction. (shrink)

The once marginal theological question of Christ’s unique status has today entered into general consciousness. Increasing friendly dialogue among religions is one factor contributing to the urgency of the question. Another is the critical nature of the question within Christian theology. This article examines a broad range of responses and calls for a foundational approach based on Karl Rahner. It shares the advantage of this approach in addressing the suggestion that the Christian religion plays a unique role in a “liberation (...) theology of religions.”. (shrink)

Growing ties to private industry have prompted many to question the impartiality of academic bioethicists who receive financial support from for-profit corporations in exchange for ethics-related services and research. To the extent that corporate sponsors may view bioethics as little more than a way to strengthen public relations or avoid potential controversy, close ties to industry may pose serious threats to professional independence. New sources of support from private industry may also divert bioethicists from pursuing topics of greater social importance, (...) such as the needs of medically underserved communities. To inform ongoing debates about the financing of bioethics and its transparency to those concerned about potential sources of bias, we examined funding disclosures appearing in original research reports in major bioethics journals. Reviewing research published over a 15-year period, we found little evidence that for-profit corporations are influencing bioethics research directly. Instead, we found evidence that a great number of organizations, both public and private, support bioethics research. These findings suggest that worries about the cooption of bioethics research by a few interested stakeholders are greatly overstated and undersupported by available data. (shrink)

Dismantling Contemporary Deficit Thinking provides comprehensive critiques and anti-deficit thinking alternatives to this oppressive theory by framing the ...

My brand of evolutionary economics recognizes, highlights, that modern economies are always in the process of changing, never fully at rest, with much of the energy coming from innovation. This perspective obviously draws a lot from Schumpeter. Continuing innovation, and the creative destruction that innovation engenders, is driving the system. There are winners and losers in the process, but generally the changes can be regarded as progress. The processes through which economic activity and performance evolve has a lot in common (...) with evolution in biology. In particular, at any time the economy is marked by considerable variety, there are selection forces winnowing on that variety, but also continuing emergence of new ways of doing things and often economic actors. But there also are important differences from biological evolution. In particular, both innovation and selection are to a considerable degree purposive activities, often undertaken on the basis of relatively strong knowledge. (shrink)

In this paper I argue for a theory of punishment I call Multilateral Retributivism. Typically retributive notions of justice are unilateral: focused on one person’s desert. I argue that our notions of desert are multilateral: multiple people are owed when a moral crime is committed. I argue that the purpose of punishment is communication with the end-goal of reconciling the offender to society. This leads me to conclude that the death penalty and life without parole are unjustified because they necessarily (...) cut communication short. (shrink)

Like many trained in philosophy, we greatly value the work of those scholars with the courage to espouse contrarian views, particularly when the ideas in dispute lie at the very heart of entrenched...

This article considers Ephraim Chambers's Cyclopaedia (2 Vols., 1728) as a work that responded to anxieties about information overload. Chambers drew on Renaissance ideas about summarizing and organizing knowledge—in particular, the humanist practice of keeping a commonplace book. By completing an alphabetical dictionary with due deference to categories, or Heads, he not only offered a convenient summary of knowledge but retained the notion of an encyclopedic circle of arts and sciences. The article also relates this concept of authorial design to (...) debates surrounding the 1710 copyright Statute in England. (shrink)

ALL classical palaeographers are familiar with Persius' roster of writing materials: Now we take the book to hand, and the two-coloured parchment purged of hair, and papyrus, and a knotty reed. Of the items mentioned, only ‘two-coloured parchment’ presents any difficulty.I hope in this article to present at least a possible solution to this problem. An obvious supposition would be that Persius is merely referring to the natural differences in colour between the two sides of a piece of parchment.

In 2020, the unmitigatingly brutal year of pandemic, there appeared two significant books about the regime of economics and law known as neoliberalism. This regime of political economy is a social...