An additional compartment of vaccinated individuals is considered in a SIS stochastic epidemic model with infection reintroduction. The quantification of the spread of the disease is modeled by a continuous time Markov chain. A well-known measure of the initial transmission potential is the basic reproduction number $$R_0$$, which determines the herd immunity threshold or the critical proportion of immune individuals required to stop the spread of a disease when a vaccine offers a complete protection. Due to repeated contacts between the (...) typical infective and previously infected individuals, $$R_0$$ overestimates the average number of secondary infections and leads to, perhaps unnecessary, high immunization coverage. Assuming that the vaccine is imperfect, alternative measures to $$R_0$$ are defined in order to study the influence of the initial coverage and vaccine efficacy on the transmission of the epidemic. (shrink)

The study of corpography (corpographèse) in J.M. Coetzee’s Waiting for the Barbarians establishes a symptomatology of the body -linked to the experiences of torture and eroticism- that associates the illness with somnolence in the fictional text and the parasitization of the represented historical text. The tortured and undesired bodies of the protagonists undergo a process of objectification that manifests the acceleration of the fall of the Empire and the fragmentation of its discursive body as well as reinforces the secrecy and (...) illegibility of the text inscribed in the body of barbarism. This indecipherable text/body is defined by the paradox of the border labyrinth whose specularity gives rise to the illusion of control at the frontier between empire and barbarism. We will study, first of all, the writing of torture on the bodies, focusing on two organs - the eyes and the feet. Then, we will be interested in the erotic experience between the two protagonists. Finally, we will see how these vacuous bodies establish, at the border, a suspensive temporary bond with the historical and the memorial text. (shrink)

Review: Arias Maldonado, M. (2018) Antropoceno. La política en la era humana. Taurus, 254 pp.

Recent advances in wireless technologies have led to the development of intelligent, in-vehicle safety applications designed to share information about the actions of nearby vehicles, potential road hazards, and ultimately predict dangerous scenarios or imminent collisions. These vehicle safety communication (VSC) technologies rely on the creation of autonomous, self-organizing, wireless communication networks connecting vehicles with roadside infrastructure and with each other. As the technical standards and communication protocols for VSC technologies are still being developed, certain ethical implications of these new (...) information technologies emerge: Coupled with the predicted safety benefits of VSC applications is a potential rise in the ability to surveil a driver engaging in her everyday activities on the public roads. This paper will explore how the introduction of VSC technologies might disrupt the “contextual integrity” of personal information flows in the context of highway travel and threaten one’s “privacy in public.” Since VSC technologies and their related protocols and standards are still in the developmental stage, the paper will conclude by revealing how close attention to the ethical implications of the remaining design decisions can inform and guide designers of VSC technologies to create innovate safety applications that increase public safety, but without compromising the value of one’s privacy in public. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Opining the articuli fidei:Thomas Aquinas on the Heretic’s Assent to the Articles of FaithM. V. DoughertyTHOMAS AQUINAS’S ACCOUNT of the infused virtue (habitus) of faith presupposes that some intrinsically intelligible truths are beyond the range of the natural cognitive abilities of human beings. The possession of the virtue of faith allows the believer to transcend certain natural epistemic limitations so that he can assent to truths that are necessary (...) for salvation. Consonant with the Catholic theological tradition, Aquinas refers to such truths as the articles of faith (articuli fidei), and stock examples include propositions concerning the Trinity and the Incarnation.1In light of the many and well-known texts from the Corpus Thomisticum that highlight the disproportion or incommensurability between the articles of faith and the natural cognitive abilities of human beings, it would not be unreasonable for one to assume that faith is required to assent to such articles of faith [End Page 1] in this life. Such an interpretive assumption could be expressed as:A1: A human being can assent to the articles of faith in this life if and only if the human being is fortified with the infused virtue of faith.One might be led to ascribe A1 to Aquinas when one considers that he criticizes the Pelagians precisely for maintaining that the assent to matters of faith is caused by nothing other than free will.2 Still further, one might think that strong evidence for A1 is Aquinas’s claim that “free will does not suffice for believing, since those things that are of faith are above reason.”3I argue, however, that A1’s identification of the virtue of faith as a necessary condition for the assent to the articles of faith does not adequately reflect Aquinas’s position, despite the many texts that may suggest such a view.4 That Aquinas does not endorse A1 can be made evident by examining his largely overlooked account of the epistemic state of the heretic (haereticus). To be sure, most commentators who explore the Thomistic treatment of heresy focus on the psychology of error underlying the heretic’s denial of one or more of the articles of faith.5 In the present paper I take an alternate path, however, focusing on those epistemic acts whereby the heretic gets its [End Page 2] right, so to speak, by correctly assenting to some of the articles of faith. Aquinas maintains that the heretic does not possess the infused virtue of faith yet still assents to all the articles of faith except for the one or more articles that he denies. Bereft of faith, the heretic “holds those things that are of faith by another mode than through faith.”6 This seemingly anomalous epistemic condition deserves consideration.7I. Intellects without FaithThe heretic appears to be cognitively privileged, since without faith he assents to the things that are of faith, seemingly overcoming without divine assistance the aforementioned disproportion between the limited range of reason and the articles of faith. Aquinas is aware of the apparent difficulty; in the Summa theologiae he defuses the rather unusual objection that heretics appear to have greater cognitive capacities than the faithful, since heretics routinely and unassistedly assent to those higher truths without possessing the virtue of faith.8 Aquinas concludes that the heretic holds the articles of faith by opinion (opinio), not faith.What makes one a heretic? Frequently Aquinas identifies obstinacy (pertinacia, instantia) as a necessary condition for heresy.9 The cause of heresy is at times identified with pride [End Page 3] (superbia).10 On Aquinas’s account, heresy is a species of unbelief (infidelitas) and every heretic is a schismatic.11 But the heretic does get many things right. If one were to deny all of the articles of faith, one would not qualify as a heretic, but would simply be a nonbeliever or an apostate. So, apart from the denial of an article (or a few articles) that specifies heretics as the distinct kind of heretic they happen to be, heretics for the most part succeed in assenting to most—but not all—of the articles of faith.Although the... (shrink)

Книга представляет собой систематический научный труд. Это принципиально новая наука! Здесь нет механики! Исследование мироздания - "качественное", и законы, есть законы.

Selected articles on Marxism, nationalism, and humanism by a radical humanist leader and Communist international; includes study on his life and work.

Learning a mapping involves finding regularities in a training set and generalization to novel patterns. Clark & Thornton's type distinction has been discussed in terms of generalization, but has limited value in this respect. However, in terms of detection of regularities in the training set, the distinction is more valid, as it provides a measure of complexity and correlates with the size of search space.

System of References To keep footnotes to a minimum, references to classical sources are incorporated into the body of the narrative, normally in the ...

In this issue we are publishing articles criticizing the " gang of four" selected from recent sources in the People's Republic of China. The major recent sources in the People's Republic of China. The major theoretical criticism centers around the idea and theory of "bourgeois rights" attributed to the "gang of four.".

Quantum electrodynamics is the theory of electrons and other elementary charged particles, interacting through the exchange of light quanta. Albert Einstein introduced the light quantum in 1905, but for about three decades physicists applied quantum ideas mainly in theories of the structure and behavior of matter, not to electromagnetic radiation itself, which was always treated semi-classically. This began to change after 1923 with the discovery of the Compton effect and its kinematic description by Arthur Compton and Peter Debye, based on (...) the light quantum. In this paper we review the study of high-energy radiation that led to Compton's discovery. We discuss the analysis of the intensity distribution of Compton-scattered radiation that together with the ''new'' quantum theory beginning in 1925, resulted in the development, especially by Pascual Jordan and Paul Dirac, of a quantum theory of electromagnetic radiation in interaction with matter. (shrink)

We exhibit a 10-element semigroup Q such that the question Does a given quasi-identity hold in Q? is co-NP-complete while the question Does a given identity hold in Q? can be answered in linear time.

Após a obrigatoriedade da educação sexual (ES) nas escolas portuguesas em 2009, pretendemos conhecer que perspectiva têm os professores ( N = 307) sobre a ES. Através de um questionário on-line , analisado através de estatística descritiva e de análise factorial e inferencial, avaliámos as atitudes ..

In teaching introductory ethics courses it is a struggle to find ways to ground the theoretical approach in a context accessible to students. Two way to provide this context are to use feature films and service learning. Each approach has advantages and disadvantages. Feature films provide students with a consistentnarrative, the filmmaker’s intentions, and identical experiences. Service learning provides students with an open encounter with uncertain meaning, concrete human problems, and at best similar experiences. The benefits and weaknesses of each (...) approach depend upon the objectives of the course. Films allow for greater clarity in interpretation of ethical theory, while service makes possible an appreciation of the ambiguities of ethical actions. (shrink)

In a series of articles, Snyder has developed the idea of simultaneous situations and that concept's implications for physics and psychology . In recent articles , he develops the application of the concept to the Einstein, Poldsky, and Rosen Gedankenexperiment that utilized spacelike separated events to solve the problem that arises in Bohr's complimentarity interpretation of quantum mechanics. In the course of his most recent article , Snyder made several criticisms of Garrison in order to strenghten Snyder's argument for a (...) cognitive-interpretive activity in the gedankenexperiment. These criticisms are addressed and Snyder's Einsteinian realism is contrasted with Garrison's verificationist stance. (shrink)

Bering's target article proposes that the tendency to believe in an afterlife emerged (in evolutionary history) in response to selective pressures unique to human societies. However, the empirical evidence presented fails to account for the broader social context that impinges upon researcher–participant interactions, and so fails to displace the more parsimonious explanation that it is childhood credulity that underlies the acquisition of afterlife beliefs through cultural exposure.