In this work we define, in a general way, an algebraic semantics for the logics of the hierarchy InPk. This semantics is defined by means of an alternative construction, with respect to the usual algebraic semantics, and it is known in the literature as Twist-structures semantics. Besides that, we modify such construction, defining the so-called ω-Twist-structures here. This adaptation allows us to prove adequacy theorems for every logic of the hierarchy InPk.

Bioethics emerged as a discipline in the 70s of the last century. One of its main objectives has been to analyze clinical cases that pose moral problems. This analysis is generally carried out by a multidisciplinary group, the Health Care Ethics Committee, which is comprised of ethical experts or healthcare providers assisted by a facilitator, depending on the context. Different methodologies are used in these situations. The deliberative method, in its various configurations, is the most widely used in many Committees. (...) Identify whether the deliberative method is included in regulated undergraduate and postgraduate teaching; analyze whether a single model can be identified or whether there is heterogeneity in the proposals. A bibliographic review was carried out, following the scoping review method. With respect to the first objective, there is no evidence on the teaching and use of the deliberative method in the Faculties and Schools of Medicine and Nursing, the emphasis is placed on training oriented to the resolution of clinical cases and a certain deliberative proposal is developed from them, more pragmatic than ethical-philosophical. In relation to the second objective, differences are observed between the two most prevalent schools (D. Gracia and B. Molewijk), with the model proposed by Gracia being used more in the Spanish-speaking world, and Molewijk's model in the English-speaking world. It can be seen that D. Gracia's proposal is more philosophical and Molewijk's more pragmatic. Finally, it is considered pertinent to further disseminate the deliberative method and its advantages, as well as its potential for bioethics education. (shrink)

Society Semantics, introduced by W. Carnielli and M. Lima-Marques, is a method for obtaining new logics from the combination of agents of a given logic. The goal of this paper is to present several generalizations of this method, as well as to show some applications to many-valued logics. After a reformulation of Society Semantics in a wider setting, we develop in detail two examples of application of the new formalism, characterizing a hierarchy of paraconsistent logics called Pn and a hierarchy (...) of paracomplete logics In. We also propose three further generalizations, obtaining Society Semantics for several many-valued logics, including a hierarchy of logics called In Pk which are both paraconsistent and paracomplete. (shrink)

In their paper, “Helpful Lessons and Cautionary Tales: How Should COVID-19 Drug Development and Access Inform Approaches to Non-Pandemic Diseases?” Holly Fernandez Lynch and colleagues have present...

For a theory T, we study relationships among IΔ n +1 (T), LΔ n+1 (T) and B * Δ n+1 (T). These theories are obtained restricting the schemes of induction, minimization and (a version of) collection to Δ n+1 (T) formulas. We obtain conditions on T (T is an extension of B * Δ n+1 (T) or Δ n+1 (T) is closed (in T) under bounded quantification) under which IΔ n+1 (T) and LΔ n+1 (T) are equivalent. These conditions depend (...) on Th Πn +2 (T), the Π n+2 –consequences of T. The first condition is connected with descriptions of Th Πn +2 (T) as IΣ n plus a class of nondecreasing total Π n –functions, and the second one is related with the equivalence between Δ n+1 (T)–formulas and bounded formulas (of a language extending the language of Arithmetic). This last property is closely tied to a general version of a well known theorem of R. Parikh. Using what we call Π n –envelopes we give uniform descriptions of the previous classes of nondecreasing total Π n –functions. Π n –envelopes are a generalization of envelopes (see [10]) and are closely related to indicators (see [12]). Finally, we study the hierarchy of theories IΔ n+1 (IΣ m ), m≥n, and prove a hierarchy theorem. (shrink)

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)

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)

I Want to comment on five passages where I have provoked disagreement by a previous discussion. In the first three, my discussion was in Philologus cx , 152–4, and my critic is Bruno Gentili in Quaderni Urbinati iv , 177–81. I was not the first to make an emendation in any of the three places, so that in defending the transmitted text Gentili is actually not only criticizing me but others such as Hermann, Naeke, O. Müller, Schoemann, Hunt, Murray, and (...) Page. (shrink)

On 31 December 1957 the deputy director of the Institute of Philosophy of the USSR Academy of Science, A. F. Okulov, informed me that I had been hired as a junior research fellow. In the following year, Voprosy filosofii published my first article, which was followed by other articles. Since then I have left the Institute several times and have published a lot in other journals and publishing houses, but for me the Institute and Voprosy remain forever my philosophical Home, (...) an axis around which my intricate fate took shape. Hence, for me the journal's fiftieth anniversary is not simply one more anniversary, however solemn and honored it may be, but an emotional and joyful event in my own life, an existential frontier. (shrink)

By the colours and decoration of a vase fragment one determines the period and style to which the original belonged; while its physical contours show from what part of the original it comes. The material may be insufficient for a reconstruction of the whole design. But it is often legitimate to go beyond what is actually contained in the preserved pieces.

In the long section of anapaests with which they make their entry, the old men of Argos methodically deliver three essential messages to the audience: 40–71. It is the tenth year of the Trojan War. 72–82. We are men who were too old to go and fight in it. 83–103. Some new situation seems to be indicated by the fact that Clytemnestra is organizing sacrifices throughout the town.

Résumé : Le PPBS a été conçu comme un instrument destiné à ceux qui décident de l'allocation des ressources publiques : il doit leur permettre de prendre de meilleures décisions. S'il est très difficile de repérer et de juger les choix que le développement du système a inspirés aux Etats-Unis, il n'en est pas mains certain que ses résultats tangibles sant maigres car la masse des anciens programmes, principale source potentielle de moyens nouveaux, n'a guère été remise en question.La valeur (...) intrinsèque du PPBS ne peut être mise en cause. Ce qui doit l'être, c'est la lenteur de son développement, qui demeure peu avancé. Cette lenteur s'explique, car le système ne peut produire des fruits dans une terre stérile qu'on n'a pas préparée.La brutalité et les maladresses de l'opération déclenchée en 1965 dans le gouvernement fédéral américain ne pouvaient que renforcer la résistance au changement et retarder, sinon compromettre, le succès final. Les perspectives demeurent heureusement favorables, puisque la nouvelle administration ne semble pas décidée à faire machine arrière et que les Etats et Villes ont démarré sous de bien meilleurs auspices.La principale conclusion qu'imposent les expériences américaines est que toute juridiction intéressée par le PPBS doit impérativement développer, de la façon la plus générale, la volonté d'instaurer le système et s'assurer les moyens de le faire. C'est dire qu'il est peu sage d'engager la bataille sur tous les fronts à la fois : il faut tenter des percées. Mais c'est dire aussi combi en l'information et la formation sant essentielles. A cet égard, l'installation généralisée de certains éléments du système, à savoir la structure de programmes et le budget-programme, loin de présenter des inconvénients, peut constituer un excellent exercice en dehors de son utilité directe pour le preneur de décision. La bataille en cause est surtout celle de la conviction: l'outil est prêt, il est bon, encore faut-il que l' ouvrier accepte de s'en servir.Samenvatting:Planning-programming-budgeting werd ontworpen als een instrument voor diegenen die beslissen over de toewijzing van de overheidsmiddelen.Dit instrument moet de beslissers in staat stellen betere beslissingen te treffen. Het is niet makkelijk deze beslissingen op te sporen en te beoordelen welke in de Verenigde Staten getroffen werden onder invloed van de ontwikkeling van deze systeembenadering. Toch is het met vrij grote zekerheid te stellen dat de tastbare resultaten gering zijn omdat de veelheid aan oude programma's die tenslotte toch de voornaamste potentiële bronnen zijn van nieuwe middelen, nooit werden aangevochten.De intrinsieke waarde van PPBS kan daarom evenwel niet worden genegeerd. Wat wel dient aangeklaagd is de traagheid van zijn aanslepende ontwikkeling. Deze traagheid is te verklaren door het feit dat het systeem slechts vruchten kan afwerpen zo het ingeplant wordt in degelijk voorbereid terrein.De brutaliteit en de onhandigheden bij de operatie die in 1965 werd ingezet in het amerikaans federaal overheidsbestel konden niets anders dan de weerstand tegen de verandering versterken en afbreuk doen aan het uiteindelijk slagen van het systeem. Gelukkiglijk blijven de vooruitzichten gunstig want de nieuwe beleidsvoerders sinds de presidentsverkiezingen, blijken ermee te willen doorgaan en de staten en lokale overheden zijn ermee van wal gestoken onder veel betere omstandigheden. Het doorslaggevend besluit uit de amerikaanse ervaringen terzake is wel dat elke instantie welke belangstelling heeft voor PPBS, nodig moet op zo breed mogelijk vlak de wil doen groeien om het systeem te ontwikkelen en er ook de nodige middelen toe ter beschikking stellen. Dit betekent tevens dat het weinig aan te bevelen is de strijd op alle fronten terzelvertijd aan te binden maar wel geleidelijk doorbraken te verwezenlijken. Dit brengt dan evenwel ook met zich dat informatie en vorming essentieel zijn bij deze strategie. In dit verband moet dan ook gezegd worden dat reeds het invoeren van sommige deelementen van het systeem, zoals de programmastructuur en het programmabudget, voor de beslisser nuttig kan zijn voor zijn persoonlijk inzicht en vorming.De te voeren actie dient nog slechts te worden toegespitst op het overtuigen van de verantwoordelijken. Het instrument is immers gebruiksklaar en degelijk, er is alleen nog het wachten op de wil van de gebruiker dit instrument ter hand te nemen. (shrink)