A mathematical model based upon catastrophe theory is derived to describe the kinematics of the wing beat in Dipteran flight. The parameters of the model correspond to anatomical and physiological characteristics of the insect.

SummaryJohn Dalton's atomic theory, with its postulate of compound formation through atom-to-atom combination, brought a new perspective to weight relationships in chemical reactions. A presumed one-to-one combination of atoms A and B to form a simple compound AB allowed Dalton to construct his first table of relative atomic weights from literature analyses of appropriate binary compounds. For such simple binary compounds, the atomic theory had little advantages over affinity theory as an explanation of fixed proportions by weight. For ternary compounds (...) of the form AB2, however, atomic theory made quantitative predictions that were not deducible from affinity theory. Atomic theory required that the weight of B in the compound AB2 be exactly twice that in the compound AB. Dalton, Thomas Thomson and William Hyde Wollaston all published within a few years of each other experimental data that claimed to give the predicted results with the required accuracy. There are nonetheless several experimental barriers to obtaining the desired integral multiple proportions. In this paper I will discuss replication experiments which demonstrate that only Wollaston's results are experimentally reliable. It is likely that such replicability explains why Wollaston's experiments were so influential. (shrink)

Alan J. Holland. Library of Congress Cataloging in Publication Data Main entry under title: Philosophy, its history and historiography. (Royal Institute of Philosophy Conference; v. 1983) ...

This article attempts a contextual study of the origin and early development of August Kekulé's theory of aromatic compounds. The terminus a quo is essentially August Hofmann's coining of the modern chemical denotation of ‘aromatic’ in 1855; the terminus ad quem is the first full codification of Kekulé's theory in the sixth fascicle of his Lehrbuch der organischen Chemie, published in the summer of 1866. Kekulé's theory is viewed in context with the earlier and concurrent experimental work of such chemists (...) as Hermann Kolbe, Friedrich Beilstein, Rudolph Fittig, and Hugo Müller. The reception of the theory is briefly examined. Attention is paid to the role of Kekulé's molecular models and of his celebrated dream anecdote of the snake that seizes its own tail. The episode is used as a case study for the continuity of scientific progress, and to illustrate the close reciprocal interactions of hypothesis and experiment in the evolution of a scientific theory. (shrink)

Diagnostic self-testing devices are being developed for many illnesses, chronic diseases and infections. These will be used in hospitals, at point-of-care facilities and at home. Designed to allow earlier detection of diseases, self-testing diagnostic devices may improve disease prevention, slow the progression of disease and facilitate better treatment outcomes. These devices have the potential to benefit both the individual and society by enabling individuals to take a more proactive role in the maintenance of their health and by helping society improve (...) health and reduce health costs. However, the full implications of future home-based diagnostic technology for individuals and society remain unclear due to their novelty. We argue that the development of diagnostic tools, especially for home use, will heighten a number of ethical challenges. This paper will explore some of the ethical implications of home-based self-testing diagnostic devices for the autonomous and relational dimensions of the person. This will be facilitated by examining the impact of diagnostic devices for individual autonomy, for the delivery of accurate diagnosis and for the personal significance of the information for the user. The latter will be examined using Charles Taylor's view of personhood and his emphasis on human agency and interpretation. While the ethical issues are not necessarily new, the development of home-based self-testing diagnostic devices will make issues regarding autonomy, accuracy of information and personal significance more and more demanding. This will be the case particularly when an individual's autonomous choices come into conflict with the person's relational responsibilities. (shrink)

The concept of missed care refers to an irrefragable truth that required nursing care, which is left undone, occurs in the delivery of health care. As a technical concept, missed care offers nurses the opportunity to articulate a problematic experience. But what are we to make of missed care from an ethical perspective? Can nurses be held morally responsible for missed care? Ethically speaking, it is generally accepted that if a person has a moral obligation to do something, s/he needs (...) to have the capacity to do it. If a person does not have the capacity to fulfil a moral obligation, then s/he cannot be held responsible for failing to do so. This is captured by the “ought implies can” (OIC) principle. This paper brings the OIC principle to the forefront of the discussion on missed care. It is contended that nurses – qua moral agents – may be discharged from a moral obligation to carry out a required caring act because of some inability that is not of their making and therefore may not be morally responsible for missed care. However, the OIC principle may not be applied to all situations of missed care depending on their causes. In addition, following in the thought of Sapontzis (The Southern Journal of Philosophy, 1991, XXIX, 383–393) it is contended that when an original obligation to deliver a required act of care cannot be fulfilled, other obligations may be generated as summed up in the “Principle of Making Amends” and the “Principle of Appropriate Feeling.” It is the view of this paper that these further principles could prevent the OIC principle from being used to simply excuse omissions of care from a normative standard and could support the view that nurses continue to have alternative obligations to make amends and to respond with appropriate feelings to missed care. (shrink)

This paper seeks to contribute to the discussion on national corporate social responsibility plans from the perspectives of the three logics as articulated in Caritas in Veritate, by using the Irish national CSR plan as an example. Good for Business, Good for the Community: Ireland’s National Plan on Corporate Social Responsibility 2014–2016 maintains that CSR activities can enable organisations to build relationships and trust with communities. One of the consequences of the 2008 financial crisis was the decrease in trust in (...) banking systems and in business more broadly. It is well recognised that relationships of trust are essential to the life of the market, the state and civil society. Pope Emeritus Benedict XVI’s Caritas in Veritate contends that corresponding to the life of the market, the state and civil society are three logics: the logic of exchange, the logic of public obligation and the logic of gift. This paper proposes that the normative framework of the three logics of Caritas in Veritate can be read into the Irish national CSR plan. This paper argues that the examples of CSR initiatives proffered by the plan could point organisations in the direction of the logic of gift and therefore enable the rebuilding of relationships of trust with citizens and communities. (shrink)

__Social Network Theory and Educational Change_ offers a provocative and fascinating exploration of how social networks in schools can impede or facilitate the work of education reform._ Drawing on the work of leading scholars, the book comprises a series of studies examining networks among teachers and school leaders, contrasting formal and informal organizational structures, and exploring the mechanisms by which ideas, information, and influence flow from person to person and group to group. The case studies provided in the book reflect (...) a rich variety of approaches and methodologies, showcasing the range and power of this dynamic new mode of analysis. An introductory chapter places social network theory in context and explains the basic tools and concepts, while a concluding chapter points toward new directions in the field. Taken together, they make a powerful statement: that the success or failure of education reform ultimately is not solely the result of technical plans and blueprints, but of the relational ties that support or constrain the pace, depth, and direction of change. This unique volume provides an invaluable introduction to an emerging and increasingly important field of education research. (shrink)

In Sherrington's Loom, Alan McComas provides a historical account of the research that has led to recognition of key mechanisms underlying consciousness. Evidence is assembled from a rich variety of sources--neurological patients, animal behavior, laboratory studies, and especially brain stimulation and recording in humans and animals. Among the remarkable advances in the field has been the ability to identify nerve cells in the human brain that store memories of specific people, places, and objects. In addition to dealing with the (...) issue of "free will," the book assembles the information into possible working models for sensations, intentions, and actions. McComas concludes by considering the possibility of consciousness in artificially intelligent systems. (shrink)

Building on research regarding the influence of national identity salience on attitudes towards international institutions and the impact of nationalism on foreign policy preferences, in a case study of America, I explore the role of chauvinistic nationalism to understand its impact on attitudes towards international jurisdiction of punishment for alleged human rights violations by members of the American military. Using binomial regression of survey responses from the 2014 Cooperative Congressional Election Study, I find that respondents with higher levels of chauvinistic (...) nationalist sentiment also have higher levels of opposition to the jurisdiction of international legal institutions to prosecute members of a nation’s military. This study is the first of its kind to offer a systematic and multivariate explanation for public opinion towards the jurisdiction of international human rights institutions over a nation’s armed forces using national survey data. (shrink)

Machine generated contents note: Table of ContentsIntroduction -- 1. Kierkegaard's Audience and Approach -- 2. Against Hegelianism: Kierkegaard on Creation and Christology -- 3. Karl Barth and the Legacy of the Enlightenment: Cultural Religion, Nationalism, and Idealism -- 4. God's Relationship with Us in Time: The Kierkegaard-Barth Trajectory -- 5. Barth's Appropriation of Kierkegaard -- 6. The Kierkegaard-Barth Trajectory and the Challenge of the "Socratic": What Should Christian Engagement with Secular Society Presuppose? -- 7. Beyond Immanence -- Conclusion -- Bibliography (...) . (shrink)

In mammals, the Y chromosome induces testis formation and thus male sexual development; in the absence of a Y chromosome, gonads differentiate into ovaries and female development ensues. Molecular genetic studies have identified the Y‐located testis determining gene SRY as well as autosomal and X‐linked genes necessary for gonadal development. The phenotypes resulting from mutation of these genes, together with their patterns of expression, provide the basis for establishing a hierachy of genes and their interactions in the mammalian sex determination (...) pathway. (shrink)

The prioritisation of scarce resources has a particular urgency within the context of the COVID‐19 pandemic crisis. This paper sets out a hypothetical case of Patient X (who is a nurse) and Patient Y (who is a non‐health care worker). They are both in need of a ventilator due to COVID‐19 with the same clinical situation and expected outcomes. However, there is only one ventilator available. In addressing the question of who should get priority, the proposal is made that the (...) answer may lie in how the pandemic is metaphorically described using military terms. If nursing is understood to take place at the ‘frontline’ in the ‘battle’ against COVID‐19, a principle of military medical ethics—namely the principle of salvage—can offer guidance on how to prioritise access to a life‐saving resource in such a situation. This principle of salvage purports a moral direction to return wounded soldiers back to duty on the battlefield. Applying this principle to the hypothetical case, this paper proposes that Patient X (who is a nurse) should get priority of access to the ventilator so that he/she can return to the ‘frontline’ in the fight against COVID‐19. (shrink)

Interpretations of human nature driven by scientific analyses of the origin and development of the human species often assume metaphysical naturalism. This generates restrictive and distortive accounts of key facets of human life and ethics. It fails to make sense of human altruism, and it operates within a wider philosophical framework that lacks explanatory power. The accounts of theistic evolution that seek to redress this, however, too easily fail to take sufficient account of the unique contribution of interpretations from a (...) specifically Christian epistemic base. The latter involve a Christological and, hence, eschatological approach which is intrinsic to the interpretation of human nature in light of the purpose and intentionality of the Creator. Phenomenological approaches to the nature of humanity lack the categories to distinguish between human nature as the object of divine intentionality and its present dysfunctional and, ultimately, subhuman state. (shrink)

This article describes two experiments on awareness in recognition memory for novel faces. Two kinds of awareness, recollective experience and feelings of familiarity in the absence of recollective experience, were measured by "remember" and "know" responses. Experiment 1 showed that "remember" but not "know" responses were reduced by divided attention at study. Experiment 2 showed that massed versus spaced repetition of faces in the study list had the opposite effects on "remember" and "know" responses. Massed repetition increased "know" responses and (...) reduced "remember" responses. Spaced repetition increased "remember" responses and reduced "know" responses. The results of both experiments replicate previous findings from the verbal domain in the domain of face recognition, and hence they increase the ecological validity of this experiential approach to memory and awareness and the generality of its database. These findings are discussed from a rehearsal perspective on factors influencing the two states of awareness and in relation to the alternative "process dissociation" procedure. (shrink)

A textbook for the undergraduate who is meeting the Lebesgue integral for the first time, relating it to the calculus and exploring its properties before deducing the consequent notions of measurable functions and measure.

Acts of Christian forgiveness that run counter to natural inclinations and ethical intuitions raise questions about the nature of human identity and the basis of moral theology. An assessment of the biblical and theological warrant for Christian forgiveness challenges the ethical misappropriation of the language of covenant, torah and righteousness to that of contract, law and justice. The argument is made that forgiveness should be seen as normative—indeed, obligatory rather than supererogatory. A theological account is then provided of the conditions (...) under which our natural inclinations are transformed so as to facilitate an orientation of forgiveness. It is argued that the doctrines of the incarnation and human participation in the mind of Christ are axiomatic for interpreting the Christian life and thus moral theology. This leads to the conclusion that a combination of ‘reconciled exemplarism’ and ‘semantic externalism’ is key to the exposition of Christian ethics – the language of which tracks God’s historical engagement with humanity rather than denoting immanent, ethical categories. (shrink)

This essay describes the complexities, challenges, and pleasures of translating from German into English a charming fantasy about the world of molecules, published in 1882 by the chemist and historian Hermann Kopp (1817–1892).

In Authority and Tradition in Ancient Historiography, John Marincola downplays the importance of an historian's choice to use first-, rather than third-, person verbs to represent his actions as an historical protagonist within his narrative. Marincola's justification for this rests on the incongruous groupings that arise if one divides first-person narrators from third: among the former we find Velleius, Eutropius and Ammianus representing Latin historians of the Empire. However, as part of a wider study which examines Ammianus' nuanced use of (...) allusion to earlier Latin authors, Gavin Kelly has recently argued for a series of close intertextual relationships between Eutropius and Ammianus. I argue here that Ammianus' relationship with Eutropius also extends to their personal roles within their narratives, and that Ammianus' use of the first person singular makes a bold statement about his historiographical programme. (shrink)

This article argues thatPanegyricus LatinusXII(9), a speech performed before Constantine in Trier in 313c.e.following his defeat of Maxentius the previous year, acted as a crucial localized act of communication to the emperor. Through a series of allusions and the careful presentation of his narrative, the orator made a case for the continued political and cultural importance of Trier within the newly expanded Constantinian empire.

In light of an historical obsession with human error, Krueger & Funder (K&F) suggest that social psychologists should emphasize the strengths of social perception. In our view, however, absolute levels of accuracy (or error) in any given experiment are less important than underlying processes. We discuss the use of the process-dissociation procedure for gaining insight into the mechanisms underlying accuracy and error.

Surveys the current political situation worldwide and proposes emergent paradigms.