This paper examines the seasonality of induced abortion in North Carolina between 1980 and 1993. Distinct seasonal patterns are found, with a peak in February and a valley in September. These patterns correspond to the implicit seasonality of conceptions associated with the seasonality of birth pattern. One notable difference from the general pattern is among unmarried women aged 18 and younger. They have the February peak and an additional peak in August that may be associated with the summer vacation from (...) school. (shrink)

This paper applies models of the onset of adolescent sexual intercourse using national data from Denmark and the USA. The model gave excellent fits to data on Danish Whites and a good fit to American Whites, but the model-fits for American Blacks and Hispanics were not as good. The weakness of the latter model fits may reflect either real processes that the model does not capture or problems in the reliability of adolescent sexuality data.

The most recent commentators on Edmund Burke have renewed the charge that his political thought lacks the consistency and coherency necessary to even claim the status of a political philosophy and that he is indeed a "utilitarian." They mark him off as an "ideologist," a "rhetorician," and a "deliberate propagandist." Even Burke’s Reflections on the Revolution in France, his most profound statement of a political philosophy, is regarded by some as a work of mere "persuasion," not "philosophy." All this occurs (...) in spite of the seminal work of Stanlis, Canavan, and Wilkins, who in the 1950s and ‘60s, demonstrated the natural law foundations of Burke’s politics. Burke revisionists, forced to acknowledge his use of the "natural law," label such use as a rhetorical means for utilitarian ends. Directly opposed to this renewed "utilitarian" interpretation of Burke is Joseph Pappin’s work The Metaphysics of Edmund Burke. Not only does this work challenge the "utilitarian" view of Burke, it sets out, as not other work on Burke has attempted to do, "to make explicit the implicit metaphysical core of Burke’s political thought." Pappin does this by examining both Burke’s critics and Burke’s own attack on a rationalist, ideologically inspired metaphysics. Drawing from Burke’s vast writings, Pappin establishes as his goal "to demonstrate that Burke’s political philosophy is grounded in a realist metaphysic, one that is basically consonant with the Aristotelian-Thomistic tradition." Does the author succeed? According to Francis Canavan, in his Foreword to this work, the "explanatory key" of a realist metaphysics grounding Burke’s politics "is a key that fits the lock better than any other that scholars have offered." Canavan further holds that the author offers "us a more thorough analysis of Burke’s understanding of God, the creation, nature, man, and society than has previously appeared.". (shrink)

In 1968, the Harvard criteria equated irreversible coma and apnea with human death and later, the Uniform Determination of Death Act was enacted permitting organ procurement from heart-beating donors. Since then, clinical studies have defined a spectrum of states of impaired consciousness in human beings: coma, akinetic mutism, minimally conscious state, vegetative state and brain death. In this article, we argue against the validity of the Harvard criteria for equating brain death with human death. Brain death does not disrupt somatic (...) integrative unity and coordinated biological functioning of a living organism. Neurological criteria of human death fail to determine the precise moment of an organism’s death when death is established by circulatory criterion in other states of impaired consciousness for organ procurement with non-heart-beating donation protocols. The criterion of circulatory arrest 75 s to 5 min is too short for irreversible cessation of whole brain functions and respiration controlled by the brain stem. Brain -based criteria for determining death with a beating heart exclude relevant anthropologic, psychosocial, cultural, and religious aspects of death and dying in society. Clinical guidelines for determining brain death are not consistently validated by the presence of irreversible brain stem ischemic injury or necrosis on autopsy; therefore, they do not completely exclude reversible loss of integrated neurological functions in donors. The questionable reliability and varying compliance with these guidelines among institutions amplify the risk of determining reversible states of impaired consciousness as irreversible brain death. The scientific uncertainty of defining and determining states of impaired consciousness including brain death have been neither disclosed to the general public nor broadly debated by the medical community or by legal and religious scholars. Heart-beating or non-heart-beating organ procurement from patients with impaired consciousness is de facto a concealed practice of physician-assisted death, and therefore, violates both criminal law and the central tenet of medicine not to do harm to patients. Society must decide if physician-assisted death is permissible and desirable to resolve the conflict about procuring organs from patients with impaired consciousness within the context of the perceived need to enhance the supply of transplantable organs. (shrink)

Generalization is a fundamental problem solved by every cognitive system in essentially every domain. Although it is known that how people generalize varies in complex ways depending on the context or domain, it is an open question how people learn the appropriate way to generalize for a new context. To understand this capability, we cast the problem of learning how to generalize as a problem of learning the appropriate hypothesis space for generalization. We propose a normative mathematical framework for learning (...) how to generalize by learning inductive biases for which properties are relevant for generalization in a domain from the statistical structure of features and concepts observed in that domain. More formally, the framework predicts that an ideal learner should learn to generalize by either taking the weighted average of the results of generalizing according to each hypothesis space, with weights given by how well each hypothesis space fits the previously observed concepts, or by using the most likely hypothesis space. We compare the predictions of this framework to human generalization behavior with three experiments in one perceptual (rectangles) and two conceptual (animals and numbers) domains. Across all three studies we find support for the framework's predictions, including individual‐level support for averaging in the third study. (shrink)

Since the introduction of the concept of brain death by the Ad Hoc Committee of the Harvard Medical School to Examine the Definition of Brain Death in 1968, the validity of this concept has been challenged by medical scientists, as well as by legal, philosophical, and religious scholars. In light of increased criticism of the concept of brain death, Stephen Napier, a staff ethicist at the National Catholic Bioethics Center, set out to prove that the whole-brain death criterion serves as (...) good evidence for death in the Catholic bioethical framework, on the grounds that when whole-brain death has occurred the soul has already departed from the body. Opponents have argued that (1) brain death does not disrupt the somatic integrative unity and coordinated biological functioning of a living organism and (2) clinical tests outlined in the practice guidelines for determining brain death lack sufficient power to exclude persisting function and fail to detect elements of the brain that, although currently functionless, may retain potential for recovery under conditions of optimal medical care. It is therefore possible that heart-beating organ procurement from patients with impaired consciousness is de facto a concealed practice of active euthanasia and physician-assisted death, both of which, either concealed or overt, the Catholic Church opposes. (shrink)

The American Journal of Bioethics, Volume 11, Issue 8, Page 52-54, August 2011.

In early 2017, Nevada amended its Uniform Determination of Death Act, in order to clarify the neurologic criteria for the determination of death. The amendments stipulate that a determination of death is a clinical decision that does not require familial consent and that the appropriate standard for determining neurologic death is the American Academy of Neurology’s guidelines. Once a physician makes such a determination of death, the Nevada amendments require the withdrawal of life-sustaining treatment within twenty-four hours with limited exceptions. (...) Neurologists have generally supported Nevada’s amendments for clarifying the diagnostic standard and limiting the ability of family members to challenge it. However, it is more appropriate to view the Nevada amendments with concern. Even though the primary purpose of the UDDA is to ensure that all functions of a person’s entire brain have ceased, the AAN guidelines do not accurately assess this. In addition, by characterizing the determination of death as solely a clinical decision, the Nevada legislature has improperly ignored the doctrine of informed consent, as well as the beliefs of particular faiths and cultures that reject brain death. Rather than resolving controversies regarding brain death determinations, the Nevada amendments may instead instigate numerous constitutional challenges. (shrink)

With the rise of analytical philosophy the criticism against Hegelianism has become increasingly shrill, and signs of an embarrassment that Hegel's philosophy should ever have arisen are noticeable in such inftuential works as those of Karl Popper and Hans Reichenbach, to mention but a few. However, many contemporary philosophers stress what is called subjectivity, conceiving reality as susceptible of methodical analysis only to the extent that it is in and for the subject. What is more, they not only insist on (...) the importance of the subject for philosophy, but maintain that the subject must be conceived as the principal determinative of true objectivity. Since knowledge depends for its possibility on the inseverable correlatives of consciousness and reality, they would grant that a proper importance must be given to both subject and object. Still, exemplifying the relational principle within the unity of a dual structure, the subject serves as an exclu sive agent that provides ingress into the meaning of the object. (shrink)

BackgroundBioethics and law distinguish between the practices of "physician-assisted death" and "allowing the patient to die."DiscussionAdvances in biotechnology have allowed medical devices to be used as destination therapy that are designed for the permanent support of cardiac function and/or respiration after irreversible loss of these spontaneous vital functions. For permanent support of cardiac function, single ventricle or biventricular mechanical assist devices and total artificial hearts are implanted in the body. Mechanical ventilators extrinsic to the body are used for permanent support (...) of respiration. Clinical studies have shown that destination therapy with ventricular assist devices improves patient survival compared to medical management, but at the cost of a substantial alteration in end-of-life trajectories. The moral and legal assessment of the appropriateness and permissibility of complying with a patient's request to electively discontinue destination therapy in a life-terminating act in non-futile situations has generated controversy. Some argue that complying with this request is ethically justified because patients have the right to request withdrawal of unwanted treatment and be allowed to die of preexisting disease. Other commentators reject the argument that acceding to an elective request for death by discontinuing destination therapy is 'allowing a patient to die' because of serious flaws in interpreting the intention, causation, and moral responsibility of the ensuing death.SummaryDestination therapy with cardiac and/or ventilatory medical devices replaces native physiological functions and successfully treats a preexisting disease. We posit that discontinuing cardiac and/or ventilatory support at the request of a patient or surrogate can be viewed as allowing the patient to die if--and only if--concurrent lethal pathophysiological conditions are present that are unrelated to those functions already supported by medical devices in destination therapy. In all other cases, compliance with a patient's request constitutes physician-assisted death because of the pathophysiology induced by the turning off of these medical devices, as well as the intention, causation, and moral responsibility of the ensuing death. The distinction between allowing the patient to die and physician-assisted death is pivotal to the moral and legal status of elective requests for death by discontinuing destination cardiac and/or ventilatory medical devices in patients who are not imminently dying. This distinction also represents essential information that must be disclosed to patients and surrogates in advance of consent to this type of therapy. (shrink)

Alvin Plantinga’s solution to J. L. Mackie’s logical problem of evil invokes possible-worlds metaphysics. There are reasons for thinking that the solution is, at least, problematic. Difficulties emerge in the attempts to answer four related questions. Can God’s necessary existence, understood in terms of possible-world metaphysics, make God’s actual existence impossible to explain? Can an omniscient being with knowledge of the contents of every possible world prove ignorant of the consequences of his creative acts? Can an immoral action performed by (...) an agent suffering from “transworld depravity” also be free in the libertarian sense? Does the possible-worlds interpretation of libertarian freedom generate a vicious infinite regress? Special focus is on the possibility, advanced by Plantinga, that there are possible worlds that even an omnipotent being cannot create. Plantinga’s views are contrasted with those of Thomas Aquinas. (shrink)

The Internet furore over Intel’s flawed Pentium chip provides an important case study of the ethical ambiguity of internet communications and the legitimacy of certain forms of “electronic activism”. Joseph Badaracco, Jr., is John Shad Professor of Business Ethics at the Harvard Business School and his co‐author is a former Research Associate at Harvard and currently on the editorial staff of Inc. magazine.

While denying that God has moral obligations, William Alston defends divine moral goodness based on God’s performance of supererogatory acts. The present article argues that an agent without obligations cannot perform supererogatory acts. Hence, divine moral goodness cannot be established on that basis. Defenses of divine moral obligation by Eleonore Stump and Nicholas Wolterstorff are also questioned. Against Stump, it is argued (among other things) that the temptations of Jesus do not establish the existence of a tendency to sin in (...) a divine being. Hence, Stump’s Christological objection to Alston’s denial of divine moral obligation fails. Some counterexamples to that denial offered by Wolterstorff also fail. It is concluded that claims of divine moral goodness remain problematic. (shrink)

This essay is part of a special issue celebrating 50 years of Political Theory. The ambition of the editors was to mark this half-century not with a retrospective but with a confabulation of futures. Contributors were asked: What will political theory look and sound like in the next century and beyond? What claims might political theorists or their descendants be making in ten, twenty-five, fifty, a hundred years’ time? How might they vindicate those claims in their future contexts? How will (...) the consistent concerns of political theorists evolve into questions critical for people decades or centuries from now? What new problems will engage the political theorists (or their rough equivalents) of the future? What forms might those take? What follows is one of the many confabulations published in response to these queries. (shrink)

Alvin Plantinga’s solution to J. L. Mackie’s logical problem of evil invokes possible-worlds metaphysics. There are reasons for thinking that the solution is, at least, problematic. Difficulties emerge in the attempts to answer four related questions. (1) Can God’s necessary existence, understood in terms of possible-world metaphysics, make God’s actual existence impossible to explain? (2) Can an omniscient being with knowledge of the contents of every possible world (a being endowed with “middle knowledge”) prove ignorant of the consequences of his (...) creative acts? (3) Can an immoral action performed by an agent suffering from “transworld depravity” also be free in the libertarian sense? (4) Does the possible-worlds interpretation of libertarian freedom generate a vicious infinite regress? Special focus is on the possibility, advanced by Plantinga, that there are possible worlds that even an omnipotent being cannot create. Plantinga’s views are contrasted with those of Thomas Aquinas. (shrink)

The tendency to test outcomes that are predicted by our current theory (the confirmation bias) is one of the best-known biases of human decision making. We prove that the confirmation bias is an optimal strategy for testing hypotheses when those hypotheses are deterministic, each making a single prediction about the next event in a sequence. Our proof applies for two normative standards commonly used for evaluating hypothesis testing: maximizing expected information gain and maximizing the probability of falsifying the current hypothesis. (...) This analysis rests on two assumptions: (a) that people predict the next event in a sequence in a way that is consistent with Bayesian inference; and (b) when testing hypotheses, people test the hypothesis to which they assign highest posterior probability. We present four behavioral experiments that support these assumptions, showing that a simple Bayesian model can capture people's predictions about numerical sequences (Experiments 1 and 2), and that we can alter the hypotheses that people choose to test by manipulating the prior probability of those hypotheses (Experiments 3 and 4). (shrink)

In a magisterial book-length study, Professor E. Christian Brugger concludes that the canons of the Council of Trent, given the beliefs and intentions of its participants, provide “a dogmatic definition of the absolute indissolubility of marriage as a truth of divine revelation” (original italics). The present concern is whether Brugger’s arguments support this conclusion. Also subject to scrutiny are the relevance, plausibility, and consistency of the conciliar thinking on which his arguments are premised. It will be argued that Brugger’s conclusion (...) is unwarranted, leaving the question of divorce and remarriage an open one. (shrink)

Pursuing a suggestion made by Christopher Stead in his book Divine Substance and employing distinctions made by Gottlob Frege in his article “Concept and Object,” it becomes possible to answer a common charge against Trinitarian Theism: its alleged inconsistency in claiming that, while there is only one God, there are also three “persons,” each rightly named “God.” The argument advanced, while supporting the logical coherence of traditional Trinitarian Theism, also defends the orthodoxy of the controversial “Social Trinitarianism” associated with Richard (...) of Saint Victor. (shrink)

Finding that an avian herpesvirus can cause atherosclerosis in chickens prompted studies of human herpesviruses in human atherosclerosis. Antigens and nucleic acid sequences of cytomegalovirus (CMV), a widespread member of the herpesvirus family, were found in arterial lesions in human atherosclerosis, but infectious virus has not been observed. In atherosclerosis patients, high levels of CMV antibodies are present, suggesting the presence of virus that had been activated from a latent state. Atherosclerosis also develops in immunesuppressed heart transplant patients infected with (...) CMV. The properties of CMV are consistent with its involvement at several levels of the atherogenic process. If this concept is correct, immunization with a CMV vaccine should prevent CMV infection and atherosclerosis. (shrink)

There is growing interest in developing co-operation between adult literacy researchers and practitioners to further research skills and approaches. Canada’s National Literacy Secretariat has recently initiated a series of policy debates that suggested several possibilities: targeted research grants, research internships for practitioners, practical sabbaticals for researchers, support for networking between literacy researchers and practitioners, and joint seminars and workshops between researchers and practitioners. A common theme throughout these discussions is the need to develop critical thinking about both collaborative research and (...) adult literacy. In this paper we discuss two collaborative initiatives between university-based researchers and adult literacy groups in the provinces of British Columbia and Ontario. Each project was based on the notion of “research circles” and specifically designed to enhance research capacity and critical thinking about literacy research. (shrink)

How does the visual system recognize images of a novel object after a single observation despite possible variations in the viewpoint of that object relative to the observer? One possibility is comparing the image with a prototype for invariance over a relevant transformation set. However, invariance over rotations has proven difficult to analyze, because it applies to some objects but not others. We propose that the invariant transformations of an object are learned by incorporating prior expectations with real-world evidence. We (...) test this proposal by developing an ideal learner model for learning invariance that predicts better learning of orientation dependence when prior expectations about orientation are weak. This prediction was supported in two behavioral experiments, where participants learned the orientation dependence of novel images using feedback from solving arithmetic problems. (shrink)

This book presents a new, powerful, and practical way of making final decisions on the hard, complex, uncertain problems of life and work. What if you have looked at the data, talked with trusted colleagues, and applied all the relevant managerial and ethical frameworks, but you still don't know what is right. How should you make your final decision? This crucial question is rarely asked or answered. And some standard answers – follow your moral compass, your conscience, or your values (...) – offer more inspiration than practical guidance. This book argues that, when we make final, hard decisions, we learn what is right by defining – personally – what is right. We find moral clarity by creating it. The book presents a fresh, challenging, and practical perspective on our hardest decisions. It offers a new conceptual approach for teachers and scholars and practical guidance for leaders and managers. (shrink)

The debate between the theory‐theory and simulation has largely ignored issues of cognitive architecture. In the philosophy of psychology, cognition as symbol manipulation is the orthodoxy. The challenge from connectionism, however, has attracted vigorous and renewed interest. In this paper I adopt connectionism as the antecedent of a conditional: If connectionism is the correct account of cognitive archi‐tecture, then the simulation theory should be preferred over the theory‐theory. I use both developmental evidence and constraints on explanation in psychology to support (...) this claim. (shrink)

In challenging Marxist theorists to confront the radical rebirth at the core of the fascist revolution, Roger Griffin has carried fascist studies to a new and valuable plateau. Likewise, David D. Roberts’s elaboration of Griffin’s model offers a provocative and fruitful avenue to rethink fascist political culture. This article seeks to advance the dialogue to the next level by considering what an international approach can add to these primarily nationalist interpretations of generic fascism. Drawing on examples from the history of (...) the United States, I argue that fascism is a fundamentally cosmopolitan process and that it needs to be placed on a broader continuum with the histories of slavery, racism and nationalism. (shrink)

Everyone has mistaken one thing for another, such as a stranger for an acquaintance. A person who has mistaken two things, Joseph Camp argues, even on a massive scale, is still capable of logical thought. In order to make that idea precise, one needs a logic of confused thought that is blind to the distinction between the objects that have been confused. Confused thought and language cannot be characterized as true or false even though reasoning conducted in such language (...) can be classified as valid or invalid. To the extent that philosophers have addressed this issue at all, they take it for granted that confusion is a kind of ambiguity. Camp rejects this notion; his fundamental claim is that confusion is not a mental state. To attribute confusion to someone is to take up a paternalistic stance in evaluating his reasoning. Camp proposes a novel characterization of confusion, and then demonstrates its fruitfulness with several applications in the history of philosophy and the history of science. (shrink)

A number of years ago, James Rachels presented an argument for the necessary non–existence of God. It was based upon a supposed inconsistency between worship and what might be called ‘autonomous moral agency’. In Rachels' view, one person's being the worshipper of another is partially determined by the way in which it is appropriate for the first to respond to the commands of the second. In brief, a worshipper's obedience to commands should be ‘ unqualified ’. Rachels thought that there (...) was some kind of incoherence in the requirement that an autonomous moral agent respond to commands in this way. He concluded that there could be no being who, like God, was alleged necessarily to be a fitting object of worship. (shrink)