A new multi-stage deterministic model for the transmission dynamics of syphilis, which incorporates disease transmission by individuals in the early latent stage of syphilis infection and the reversions of early latent syphilis to the primary and secondary stages, is formulated and rigorously analysed. The model is used to assess the population-level impact of preventive and therapeutic measures against the spread of the disease in a community. It is shown that the disease-free equilibrium of the model is globally-asymptotically stable whenever the (...) associated control reproduction number is less than unity. A special case of the model is shown to have a unique and globally-asymptotically stable endemic equilibrium whenever the associated reproduction number exceeds unity. Uncertainty and sensitivity analysis of the model, using parameter values and ranges relevant to syphilis transmission dynamics in Nigeria, show that the top three parameters that drive the syphilis infection are the disease transmission rate, compliance in condom use and efficacy of condom. Numerical simulations of the model show that the targeted treatment of secondary syphilis cases is more effective than the targeted treatment of individuals in the primary or early latent stage of syphilis infection. (shrink)

A moving cultural biography of abolitionist martyr John Brown, by one of the most important African-American intellectuals of the twentieth century. In the history of slavery and its legacy, John Brown looms large as a hero whose deeds partly precipitated the Civil War. As Frederick Douglass wrote: "When John Brown stretched forth his arm... the clash of arms was at hand." DuBois's biography brings Brown stirringly to life and is a neglected classic.

Tutte le dottrine tradizionali, da quelle più arcaiche e "primitive" a quelle più evolute e articolate, hanno sempre affermato che l'uomo non è un essere solamente corporeo, sia pur dotato di ingegno e di intelligenza, ma è un essere dalla natura composita, formato da una parte materiale e da una o più componenti invisibili e "sottili" e che in lui risiede un principio immortale di origine divina o comunque soprannaturale. Secondo il modo di vedere tradizionale, l'uomo, per conoscere e realizzare (...) se stesso, deve pertanto prendere coscienza, in primo luogo ed essenzialmente, di questa sua natura di essere composito e immortale, e questa è una di quelle idee universali (per noi forse la più importante) che troviamo diffuse presso tutte le popolazioni del pianeta, anche se con sfumature diverse nelle varie tradizioni..."--Cover flap. (shrink)

In working his way through his complex conception of the relation of fiction and reality, [Henry] James thus found the unconscious moral dimension inextricably embedded within "realism" itself. In following the threads of realism back to consciousness itself, James invariably found there intertwined with its roots those aspects and elements that other theorists kept carefully separate. By exploring experience to its source, he found imagination. By following objective life from "out there" to conception, he found individual vision. By following the (...) seeming oneness of the passing show back to perception, he found infinite variation and multiplicity. By following the uncolored flux and flow of events to their embodiment in the fictional medium, he found coloration of personality. And by following the "felt life" back to the artist's "prime sensibility", James found there the "moral sense" and the "enveloping air of the artist's humanity"—that which gives "the last touch to the worth of a work." James E. Miller, Jr., professor of English at the University of Chicago, is the author of A Critical Guide to Leaves of Grass; Walt Whitman; F. Scott Fitzgerald: His Art and His Technique; J.D. Salinger; Theory of Fiction: Henry James; and numerous articles on American literature and education. He contributed "Catcher In and Out of History" to Critical Inquiry, Spring 1977. (shrink)

Part two of the proceedings of the fifth International Congress of Logic, Methodology and Philosophy of Science, London, Ontario, Canada, August 27 - September 2, 1975.

In this note I shall: discuss Vivas' definition of "naturalism" and his criticism of naturalistic theories; characterize a naturalistic theory which Vivas overlooks, and which, hence, invalidates his attempted refutation; suggest criticisms of Vivas' "axiological realism", with special attention to the central doctrine of the objectivity of values.

The Congregation for the Doctrine of the Faith, under the prefecture of Joseph Ratzinger, published its instruction Donum vitae in 1987 to provide moral guidance on bioethical issues. Since 1987, many new ethical issues have arisen, especially in the areas of regenerative medicine (which includes stem cellresearch) and assisted reproduction. To address these the CDF, under the prefecture of William Levada, published the bioethical instruction Dignitas personae inDecember 2008. The present symposium includes reflections on the strengths and weaknesses of the (...) new document by six moral theologians noted for theirwork in bioethics: Christian Brugger, John Finnis, Luke Gormally, Christopher Kaczor, William E. May, and Peter F. Ryan, S.J. National Catholic Bioethics Quarterly 9.3 (Autumn 2009): 461–483. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:BOOK REVIEWS 493 La Trinite Creatrice. By GILLES EMERY. Paris: Vrin, 1995. Pp. 590 (paper). It was only a question of when, not if, the late rejection of Thomism in Catholic circles would be followed by the next tum toward the thought of the Angelic Doctor. This movement is already underway, and on the European continent two groups of young Dominicans are playing prominent roles. In Toulouse, though he (...) only assumed its editorship in 1991, S.-T. Bonino already has made the venerable Revue thomiste indispensable reading again. Two recent thematic issues are especially noteworthy: "Autour d'Etienne Gilson" (94 [1994): 355-553) and "S. Thomas et l'onto-theologie" (95 [1995): 1-192). Bonino's own bulletins et recensions are erudite and lively, and he is very clear about the present situation: After the decline of the last decades, Thomism is searching for a new 6lan, a new look, and not without success:... the corpse of Thomism is stirring again. Though the new look is not yet complete, one feature is set: One common point unites all now approaching the works of St. Thomas, whatever their ultimate goals: the necessity to put Thomistic doctrine into serious historical perspective.... Historical-doctrinal study of St. Thomas is opening the possibility of an authentic revival of Thomism. (Revue thomiste 95 [1995]: 485-6) While Anglo-Americans approaching Aquinas from neoscholastic or analytic perspectives might not be so enthusiastic about history, Fr. Bonino is simply correct. For evidence, he turns to the historical work of the other group of Dominicans, at Fribourg. Chief among them is J.-P. Torrell, whose masterful 1993 biography, Initiation d saint Thomas d'Aquin, is now in English, and was accompanied by a Festschrift for the eminent professor of theologyOrdo sapientiae et amoris, ed. C.-J. de Oliveira. Not least among Torrell's contributions has been to direct the thesis of Gilles Emery-La Trinite creatrice. One paragraph of Emery's helpful general conclusion reveals three dominant themes in his important work: In virtue of the nexus mysteriorum, faith in the Trinity clarifies faith in the creative and saving activity of God, while the doctrine of creation in its turn clarifies our approach to the mystery of the Trinity. It is this mutual clarification and support among the articles of faith that we mean by speaking of the "function" of the theme of the creative Trinity. The unity of the Trinity in its works ad extra constitutes a fundamental rule of the trinitarian theology of our scholastics. But it does not exhaust their theological discourse on the subject of God as creator. To arrive at a balanced doctrine, trying to give all the aspects of the mystery their due, one must add to the rule of unity a second rule, which completes it: the procession of the divine persons is the origin of the procession of creatures. (519) Emery's primary theme is captured in the title-The Creative Trinity. Creation involves not only the one God as efficient cause bestowing existence 494 BOOK REVIEWS on a multitude of creatures (rule 1), but also the Trinitarian multiplicity within God as exemplar cause of the procession of creatures (rule 2). The neoscholastics ignored rule 2, separating creation (which was turned over to the philosophers) from Trinity (the exclusive domain of the theologians). This too neat division oflabor produced unhappy consequences: a doctrine ofcreation with no role for the Trinity, and a doctrine of the Trinity with no function in creation. What can be called Emery's Trinitarian theme is a corrective for such mistakes. To understand this side of creation rightly, Emery situates Aquinas's thought in relation to Albert and Bonaventure, on whom he heavily depends. This is his hi,storical theme. From the development of these two principal themes there gradually emerges a third, less overt, but in the long run of signal importance for the new look of Thomism-what might be called the integration theme, uniting reason and revelation in Aquinas's theology. To break through the crust that had built up around Aquinas's genuine doctrine of creation Emery turns to history. Limiting himself to the Scriptum super libros Sententiarum, he finds the Trinitarian... (shrink)

Academic freedom has become the enemy of the individual professors working in colleges and universities across the United States. Despite its historical (and maybe even essential) roots in the First Amendment, contemporary case law has consistently shown that professors, unlike most members of society, have no rights to free speech on their respective campuses. (Ironically, this is especially true on our State campuses.) Outlined is the dramatic change in the history of the courts from recognizing “academic freedom” as a construct (...) needed to protect professors from the status quo, to the abuse of “academic freedom” appropriated to protect the institution from “undesirable” professorial actions such as politically incorrect speech or research. Klein warns all those in the academy to become familiar with this pernicious 180-degree turn in the use of the “academic freedom” construct. (shrink)

Some data from earlier work concerning the evolutionary correlation of anthophilous insects, entomophilous plants, herbivorous animals, and natural soil groups are briefly summarized. Presumed successive evolution of plant and animal communities from the early Paleozoic era to the more recent formation of prairies, steppes and other grassland areas is described and pictured in Fig. 6. A definite correlation has been found among the coevolution of flowering plants, pollinating insects, ruminant animals and fertility grades of natural soil groups .Plants, insects, animals (...) and soil are interrelated in evolution as reciprocal selective and regulating factors in certain biotic and abiotic environments. This complex system can be better studied by application of the coenogenic concept and hologenic and syngenic methods.Various stages of the development of an agricultural environment in the prairie areas of the North American plains are briefly described and illustrated in Plates I–VII. A new radical change in the development by the introduction of so-called “Circle Farming” is pictured in Plates VIII–IX. This new irrigated farming system is not only profitable for the increasing of yields, but promises to some extent the restoration of a biologically balanced environment in an extensively cultivated agricultural landscape. (shrink)