The aim of this study was to assess nurses’ and physicians’ ethical dilemmas in clinical practice. Nurses and physicians of the Clinical Hospital Centre Rijeka were surveyed (N = 364). A questionnaire was used to identify recent ethical dilemma, primary ethical issue in the situation, satisfaction with the resolution, perceived usefulness of help, and usage of clinical ethics consultations in practice. Recent ethical dilemmas include professional conduct for nurses (8%), and near-the-end-of-life decisions for physicians (27%). The main ethical issue is (...) limiting life-sustaining therapy (nurses 15%, physicians 24%) and euthanasia and physician-assisted suicide (nurses 16%, physicians 9%). The types of help available are similar for nurses and physicians: obtaining complete information about the patient (37% vs. 50%) and clarifying ethical issues (31% vs. 39%). Nurses and physicians experience similar ethical dilemmas in clinical practice. The usage of clinical ethics consultations is low. It is recommended that the individual and team consultations should be introduced in Croatian clinical ethics consultations services. (shrink)

The paper explores the relationship between the Principle of Double Effect and Just War Theory, with emphasis on their relationship in the philosophy of Thomas Aquinas. Both PDE and JWT are of Medieval origin, and are classical exponents of medieval moral philosophy. The main connection between them is, however, that they can both be viewed as theories about permissible violence and harm, that is theories about when it is morally permissible to harm and possibly kill another human being. The final (...) point of the paper is that PDE is an important element within JWT, or rather that when just war theorists manage to justify a certain types of violence they do so by extensive use of PDE. This only applies to one part of JWT, jus in bello, which concerns the actual morality of fighting, not the right to war itself. If these assumptions can be reasonably fleshed out, and if it is possible to show that PDE is of crucial importance to certain elements of jus in bello, such as methods for justifying civilian casualties, that would entail that our own moral examinations of warfare differ precisely because we either accept or don’t accept PDE as a viable and reasonable principle in normative ethics. (shrink)

Looking back at the "War on Terror" and its policies, actions, and the violence that followed, this book analyzes the resulting changes in international power structures and the relationship between citizens and their representatives. It defines our shortcomings in opposing this type of violence by demonstrating how the notion of legitimate violence has been broadened. -/- The impact of the "War on Terror" on the public view of Liberalism is explored, as well as its effects on the role of state (...) authorities in our lives. Thus, this book names the lessons we ought to learn from the actions taken against terrorist organizations. (shrink)

This paper develops a logical theory that unifies all three standard types of argumentative attack in AI, namely rebutting, undercutting and undermining attacks. We build on default justification logic that already represents undercutting and rebutting attacks, and we add undermining attacks. Intuitively, undermining does not target default inference, as undercutting, or default conclusion, as rebutting, but rather attacks an argument’s premise as a starting point for default reasoning. In default justification logic, reasoning starts from a set of premises, which is (...) then extended by conclusions that hold by default. We argue that modeling undermining defeaters in the view of default theories requires changing the set of premises upon receiving new information. To model changes to premises, we give a dynamic aspect to default justification logic by using the techniques from the logic of belief revision. More specifically, undermining is modeled with belief revision operations that include contracting a set of premises, that is, removing some information from it. The novel combination of default reasoning and belief revision in justification logic enriches both approaches to reasoning under uncertainty. By the end of the paper, we show some important aspects of defeasible argumentation in which our logic compares favorably to structured argumentation frameworks. (shrink)

In the 1980s, Pollock’s work on default reasons started the quest in the AI community for a formal system of defeasible argumentation. The main goal of this paper is to provide a logic of structured defeasible arguments using the language of justification logic. In this logic, we introduce defeasible justification assertions of the type t : F that read as “t is a defeasible reason that justifies F”. Such formulas are then interpreted as arguments and their acceptance semantics is given (...) in analogy to Dung’s abstract argumentation framework semantics. We show that a large subclass of Dung’s frameworks that we call “warranted” frameworks is a special case of our logic in the sense that Dung’s frameworks can be obtained from justification logic-based theories by focusing on a single aspect of attacks among justification logic arguments and Dung’s warranted frameworks always have multiple justification logic instantiations called “realizations”. We first define a new justification logic that relies on operational semantics for default logic. One of the key features that is absent in standard justification logics is the possibility to weigh different epistemic reasons or pieces of evidence that might conflict with one another. To amend this, we develop a semantics for “defeaters”: conflicting reasons forming a basis to doubt the original conclusion or to believe an opposite statement. This enables us to formalize non-monotonic justifications that prompt extension revision already for normal default theories. Then we present our logic as a system for abstract argumentation with structured arguments. The format of conflicting reasons overlaps with the idea of attacks between arguments to the extent that it is possible to define all the standard notions of argumentation framework extensions. Using the definitions of extensions, we establish formal correspondence between Dung’s original argumentation semantics and our operational semantics for default theories. One of the results shows that the notorious attack cycles from abstract argumentation cannot always be realized as justification logic default theories. (shrink)

U radu autor prikazuje dva nedavno objavljena zbornika posvećena onome što se danas imenuje kao »zaokret ka prostoru«. Nakon što je opisao ključna pitanja koja zaokupljuju priloge sakupljene u zbornicima, autor koristi prigodu ukazati na problematično izostavljanje njemačke tradicije promišljanja prostora iz dominantnih teorijskih paradigmi koje izrastaju iz rečenog spacijalnog zaokreta. Na kraju prikaza autor nudi nekoliko zapažanja o razlozima elidiranja problematike prostornosti u domaćoj teorijskoj produkciji.In the article the author discusses two recently published collections of essays devoted to what (...) is today designated as the “spatial turn”. After addressing the key questions that preoccupy the contributions collected in these publications, the author uses the occasion to point to the problematic omission of the German tradition of thinking space from the dominant theoretical paradigms which have emerged from the above mentioned spatial turn. At the end of the article the author offers a number of observations relating to the reasons for the elision of the spatial problematic in Croatian theoretical production. (shrink)

The article includes a short biography of Hermann of Dalmatia and gives an account of his translations and philosophical and scientific work. In order to have a better understanding of Hermann’s philosophy, a reminder of Greek and Arabic philosophy of nature, on which he relies in his interpretation of the world picture, needs to be presented. Cosmological models by Plato, Aristotle, Eudoxus, Heraclides of Pont, Apollonius of Perga, Hipparchus, Ptolemy, and the Arab scientist Abu Ma’shar, are presented. The main focus (...) of interest is on Hermann’s translations. The immense importance of his translations from Greek and Arabic into Latin is due to the fact that some of the seminal Greek and Arabic works became known in Western Europe in the middle of the twelfth century. Hermann is also important as the author of the original work De essentiis, which presented a blend of Platonian and Aristotelian as well as Western European and Arab traditions. (shrink)

The article includes a short biography of Hermann of Dalmatia and gives an account of his translations and philosophical and scientific work. In order to have a better understanding of Hermann’s philosophy, a reminder of Greek and Arabic philosophy of nature, on which he relies in his interpretation of the world picture, needs to be presented. Cosmological models by Plato, Aristotle, Eudoxus, Heraclides of Pont, Apollonius of Perga, Hipparchus, Ptolemy, and the Arab scientist Abu Ma’shar, are presented. The main focus (...) of interest is on Hermann’s translations. The immense importance of his translations from Greek and Arabic into Latin is due to the fact that some of the seminal Greek and Arabic works became known in Western Europe in the middle of the twelfth century. Hermann is also important as the author of the original work De essentiis, which presented a blend of Platonian and Aristotelian as well as Western European and Arab traditions. (shrink)

Contrary to the rarity of totipotent cells in animals, almost every cell formed by a fungus can function as a “stem cell”. The multicellular fruiting bodies of basidiomycete fungi consist of the same kind of filamentous hyphae that form the feeding phase, or mycelium, of the organism, and visible cellular differentiation is almost nonexistent. Mushroom primordia develop from masses of converging hyphae, and the stipe (or stem), cap, and gills are clearly demarcated within the embryonic fruiting body long before (...) the organ expands and unfolds through water uptake and cell wall loosening.aThough frequent references are made to gilled mushrooms in this article, the totipotent nature of fruiting body cells and lack of meristems is also applicable to basidiomycetes that spread their spore‐producing tissues inside tubes (e.g., boletes), over spines and rippled surfaces, or form spores in cavities within the fruiting body. Even in the mature mushroom, every hypha retains its totipotency. Among animals, only sponges exhibit a similar degree of developmental flexibility, which is interesting, because these simple metazoans may be relatively close relatives of fungi. BioEssays 24:949–952, 2002. © 2002 Wiley Periodicals, Inc. (shrink)