Objective: Quality of Life is an important predictor of patient's recovery and survival in lung cancer patients. The aim of the present study is to identify 1-year trends of lung cancer patients' QoL after robot-assisted or traditional lobectomy and investigate whether clinical and sociodemographic variables may predict these trends.Methods: An Italian sample of 176 lung cancer patients undergoing lobectomy completed the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire—Core 30 at the pre-hospitalization, 30 days, 4 months, (...) 8 months, and 12 months after surgery. Sociodemographic and clinical characteristics were also collected. The individual change over time of the 15 dimensions of the EORTC QLQ-C30 and the effects of pre-surgery scores of QoL dimensions, type of surgery, perioperative complications, and age on patients' QoL after surgery were studied with the individual growth curve models.Results: Patients had a good recovery after lobectomy: functioning subscales improved over time, while most of the symptoms became less severe over the care process. Perioperative complications, type of surgery, pre-surgery status, and age significantly affected these trends, thus becoming predictors of patients' QoL.Conclusion: This study highlights different 1-year trends of lung cancer patients' QoL. The measurement of pre- and post-surgery QoL and its clinical and sociodemographic covariables would be necessary to better investigate patients' care process and implement personalized medicine in lung cancer hospital divisions. (shrink)

In this paper we explore the relation between three areas: judgment aggregation, belief merging and social choice theory. Judgment aggregation studies how to aggregate individual judgments on logically interconnected propositions into a collective decision on the same propositions. When majority voting is applied to some propositions it may however give a different outcome than majority voting applied to another set of propositions. Starting from this so-called doctrinal paradox, the paper surveys the literature on judgment aggregation, and shows that the application (...) of a well known belief merging operator can dissolve the paradox. Finally, the use of distances is shown to establish a link between belief merging and preference aggregation in social choice theory. (shrink)

The aim of this essay is to consider both Schmitt’s polemical and his analytical claims in dealing with a concept which is central to his theory and yet strangely overlooked by the secondary literature: the concept of friendship. The essay proceeds in three steps; first it makes some textual claims about the meaning and role of friendship in Schmitt’s writings; secondly its puts forward an interpretation of the significance of friendship in Schmitt’s political thought; finally, it tries to disentangle polemics (...) from diagnostics in Schmitt’s discourse and draws some tentative conclusions. (shrink)

Ethical dilemmas in critical care may cause healthcare practitioners to experience moral distress: incoherence between what one believes to be best and what occurs. Given that paediatric decision-making typically involves parents, we propose that parents can also experience moral distress when faced with making value-laden decisions in the neonatal intensive care unit. We propose a new concept—that parents may experience “moral schism”—a genuine uncertainty regarding a value-based decision that is accompanied by emotional distress. Schism, unlike moral distress, is not caused (...) by barriers to making and executing a decision that is deemed to be best by the decision-makers but rather an encounter of significant internal struggle. We explore factors that appear to contribute to both moral distress and “moral schism” for parents: the degree of available support, a sense of coherence of the situation, and a sense of responsibility. We propose that moral schism is an underappreciated concept that needs to be explicated and may be more prevalent than moral distress when exploring decision-making experiences for parents. We also suggest actions of healthcare providers that may help minimize parental “moral schism” and moral distress. (shrink)

In this article, I analyze how the relationship of developmental psychology with general psychology and cognitive science has unfolded. This historical analysis will provide a background for a critical examination of the present state of the art. I shall argue that the study of human mind is inherently connected with the study of its development. From the beginning of psychology as a discipline, general psychology and developmental psychology have followed parallel and relatively separated paths. This separation between adult and child (...) studies has also persisted with the emergence of cognitive science. The reason is due essentially to methodological problems that have involved not only research methods but also the very object of inquiry. At present, things have evolved in many ways. Psychology and cognitive science have enlarged their scope to include change process and the interaction between mind and environment. On the other hand, the possibility of using experimental methods to study infancy has allowed us to realize the complexity of young humans. These facts have paved the way for new possibilities of convergence, which are eliciting interesting results, despite a number of ongoing problems related to methods. (shrink)

In this article, we outline a unique conceptual framework connecting legitimacy types (Suchman, 1995), theories of corporate responsibility (Brummer, 1991), and levels of organizational moral development based on Kohlberg's (1971) moral development stages. In addition, based on Global Reporting Initiative (GRI) categories, we found empirical support for our framework, by content analyzing Fortune 500 corporate citizenship reports from four different industries (i.e., chemicals, motor vehicle/auto parts, pharmaceutical, and utilities), at three data points (i.e., 2002, 2007, and 2012). Our analysis indicates (...) that motor vehicle/auto parts and chemicals industries are at a higher developmental level, and portray moral legitimacy along with social demandingness corporate responsibility in recent years; while the pharmaceutical and utilities sectors are at a lower developmental level, showing signs of pragmatic legitimacy, alongside classical and stakeholder corporate responsibility strategies. This article contributes to the current organizational moral development literature by developing and finding empirical support of a conceptual framework of organizational moral development, legitimacy, and corporate responsibility. In particular, our findings provide a deeper understanding of the differences in moral development levels across four focal industries over a 10‐year timespan. (shrink)

Human beings frequently attribute anthropomorphic features, motivations and behaviors to animals, artifacts, and natural phenomena. Historically, many interpretations of this attitude have been provided within different disciplines. What most interpretations have in common is distinguishing children’s manifestations of this attitude, which are considered “natural,” from adults’ occurrences, which must be explained by resorting to particular circumstances. In this article, I argue that anthropomorphism is not grounded in specific belief systems but rather in interaction. In interaction, a non-human entity assumes a (...) place that generally is attributed to a human interlocutor, which means that it is independent of the beliefs that people may have about the nature and features of the entities that are anthropomorphized. This perspective allows us to explain the problems that emerge if we consider anthropomorphism as a belief: (i) adults under certain circumstances may anthropomorphize entities even if they perfectly know that these entities have no mental life; (ii) according to the situation, the same entity may be anthropomorphized or treated as an object; (iii) there is no consistency among the entities that are anthropomorphized; (iv) there is individual variability in anthropomorphization, and this variability derives from affective states rather than from different degrees of knowledge about the entity that is anthropomorphized or greater or lesser naivety of the person who anthropomorphizes. From this perspective, anthropomorphism is a basic human attitude that begins in infants and persists throughout life. The difference between adults and children is not qualitative but rather a matter of complexity. (shrink)

In The Leviathan in the state theory of Thomas Hobbes, Carl Schmitt puts forward the claim that there is a ‘barely visible crack’ in Hobbes's theory of the state that opened the door to liberal constitutionalism. This essay claims that Schmitt's ‘thesis of the crack’ is composed of two elements: first, Schmitt argues that Hobbes makes a concession to individual conscience in his discussion of miracles; second, Schmitt points out that Hobbes's individualism undermines his notion of the absolute state. As (...) Schmitt relies on an unconvincing critique of Hobbes's discourse on miracles in order to justify his more general claim against Hobbes's authoritarianism, this essay suggests that Schmitt's ‘thesis of the crack’ is untenable in the form that Schmitt presented it in 1938. An attempt, however, is made to salvage ‘the thesis of the crack’ by turning to concepts found in Schmitt's Concept of the political and in Political theology. Although Schmitt openly approved of the so‐called protection/obedience principle, this essay claims that there are a number of crucial differences between Schmitt's formulation of that principle and Hobbes's own version; an examination of these differences enables us (i) to appreciate the consequences of Hobbes's individualism on his theory of the state and (ii) to shed new light on Howard Warrender's famous claim that Hobbes's sovereign is inherently weak. The essay concludes that in spite of Schmitt's fallacious formulation of the ‘thesis of the crack’ of 1938, his political theory affords us a rare vantage point from which we can clearly see a case against the association of Hobbes with authoritarianism. (shrink)

The Affective grounding hypothesis suggests that affective experiences play a crucial role in abstract concepts’ processing (Kousta et al. 2011). Vigliocco and colleagues test the role of affective experiences as well as the role of language in learning words denoting abstract concepts, comparing children with typical and atypical development. They conclude that besides the affective experiences also language plays a critical role in the processing of words referring to abstract concepts.

The aggregation of individual judgments on logically interconnected propositions into a collective decision on the same propositions is called judgment aggregation. Literature in social choice and political theory has claimed that judgment aggregation raises serious concerns. For example, consider a set of premises and a conclusion where the latter is logically equivalent to the former. When majority voting is applied to some propositions (the premises) it may give a different outcome than majority voting applied to another set of propositions (the (...) conclusion). This problem is known as the discursive dilemma (or paradox). The discursive dilemma is a serious problem since it is not clear whether a collective outcome exists in these cases, and if it does, what it is like. Moreover, the two suggested escape-routes from the paradox—the so-called premise-based procedure and the conclusion-based procedure—are not, as I will show, satisfactory methods for group decision-making. In this paper I introduce a new aggregation procedure inspired by an operator defined in artificial intelligence in order to merge belief bases. The result is that we do not need to worry about paradoxical outcomes, since these arise only when inconsistent collective judgments are not ruled out from the set of possible solutions. (shrink)

Dans son Apologie, Justin structure son discours selon un double plan: il se prononce en faveur des chrétiens injustement haïs, mais aussi, de manière plus personnelle, comme quelqu�un qui pressent l�approche de sa condamnation et s�y prépare en assumant le rôle du sage qui, sur le point de mourir, fustige l�autorité politique, sans en craindre les conséquences. En recourant à un topos littéraire très connu dans l�Antiquité, Justin se «construit» une image de mort honorable au sein de sa communauté.

This article focuses on the relationship between memory, female identity and the history of women: issues and areas of scholarship that have a comparatively recent history, but already present a rich spectrum of contrasting approaches and studies. In the case at hand, interpretations rooted in Foucault’s genealogical approach are contrasted with more recent postcolonial studies, against the backdrop of the political history of European and American feminism, a position that can scarcely be reduced to the more familiar terms of the (...) debate between philosophers and neuroscientists. The writing that springs from female memory is not the function of an alleged specificity of the female brain, but the product of the ability of a specific cultural subject to construct a genealogy from the point of view of its unprecedented reality: a seemingly minor “supplement,” but one that has the power to subvert the main corpus of history and knowledge, as Virginia Woolf already showed in magisterial terms as early as 1929. (shrink)

NOVO CÓDIGO DE PROCESSO CIVIL: REFLEXÕES SOBRE LIBERDADE, IGUALDADE E MUDANÇAS DE PARADIGMAS.

This article is an attempt to present Gödel's discussion on concepts, from 1944 to the late 1970s, in particular relation to the thought of Frege and Russell. The discussion takes its point of departure from Gödel's claim in notes on Bernay's review of ?Russell's mathematical logic?. It then retraces the historical background of the notion of intension which both Russell and Gödel use, and offers some grounds for claiming that Gödel consistently considered logic as a free-type theory of concepts, called (...) intensions, considered as the denotations of predicate names. (shrink)

The article is devoted to postmodernism musical performance. There was realized a comprehensive retrospective analysis of the phenomenon development from ancient period to nowadays. It was proved that in ancient times interpretation was explained as a form of mythological worldview embodiment; in the Middle Ages as a way of uniting man and God; in Rrenaissance as a means of harmonizing material and spiritual components of personality; in Baroque as a method of theatricality of person's existence; in Classicism as an opportunity (...) to assert the power of human mind; Romanticism emphasized emotionality and subjectivity of concerting, the unique role of master; Modernism declared freedom of interpretation. Understanding the essence of musical performance with each historical stage became deeper, was enriched with new terminological, depth of scientific and theoretical understanding. The musical performance of postmodernism as a unique phenomenon has its own chronology of formation and development, based on achievements of previous epochs, transformed in accordance to philosophical aesthetics of the late XX century. Its outstanding constitutive qualities are: anthropology, religiosity, spirituality, meditation, improvisation, humanism, dialogicity, theatricality, rationalism, intellectualism, emotionality, playing, intertextuality, polystylistics etc. The performing art of postmodernism embodies the conceptual principles of its time: pluralism, irony, collage, synthesis, the death of the author, so on. It unites, eclectically mixes different artistic traditions and views, it forms a unique interpretive vision of musical text, demonstrates openness to dialogue with different historical epochs and civilizations, aimed at both the elite and the mass audience. (shrink)

Various methods have been employed to investigate different aspects of the brain activity modulation related to the performance of a cycling task. In our study we examined how functional connectivity and brain network efficiency varied during an endurance cycling task. To this purpose, we reconstructed EEG signals at source level: we computed current densities in 28 anatomical regions of interest (ROIs) through the eLORETA algorithm, then we calculated the Lagged Coherence of the 28 current density signals to define the adjacency (...) matrix. To quantify changes of functional network efficiency during an exhaustive cycling task, we computed three graph theoretical indices: local efficiency (LE), global efficiency (GE) and Density (D) in two different frequency bands, Alpha and Beta bands, that indicate alertness processes and motor binding/fatigue respectively. This analysis was conducted for six different task intervals: pre-cycling, initial, intermediate and final stages of cycling, active recovery and passive recovery. Fourteen participants performed an incremental cycling task with simultaneous EEG recording and RPE monitoring to detect participants’ exhaustion. LE remained constant during the endurance cycling task in both bands. Therefore, we speculate that fatigue processes did not affect segregated neural processing. We observed an increase of GE in the Alpha band only during cycling, that could be due to greater alertness processes and preparedness to stimuli during exercise. Conversely, although D did not change significantly over time in the Alpha band, its general reduction in the Beta bands during cycling could be interpreted within the framework of the neural efficiency hypothesis, which posits a reduced neural activity for expert/automated performances. We argue that the use of graph theoretical indices represents a clear methodological advancement in studying endurance performance. (shrink)

In this article we present the bases for a computational theory of the cognitive processes underlying human communication. The core of the article is devoted to the analysis of the phases in which the process of comprehension of a communicative act can be logically divided: (1) literal meaning, where the reconstruction of the mental states literally expressed by the actor takes place: (2) speaker's meaning, where the partner reconstructs the communicative intentions of the actor; (3) communicative effect, where the partner (...) possibly modifies his own beliefs and intentions; (4) reaction, where the intentions for the generation of the response are produced; and (5) response, where an overt response is constructed. The model appears to be compatible with relevant facts about human behavior. Our hypothesis is that, through communication, an actor tries to exploit the motivational structures of a partner so that the desired goal is generated. A second point is that social behavior requires that cooperation be maintained at some level. In the case of communication, cooperation is, in general, pursued even when the partner does not adhere to the actor's goals, and therefore no cooperation occurs at the behavioral level. This important distinction is reflected in the two kinds of game we introduce to account for communication. The main concept implied in communication is that two agents overtly reach a situation of shared mental states. Our model deals with sharedness through two primitives: shared beliefs and communicative intentions. (shrink)

em 1858, Marx escreveu dois artigos para o jornal ianque New York Daily Tribune tratando dos preparativos do czar Alexandre II para a abolição da servidão. O presente artigo tem por objetivo analisar como nesses artigos o Estado e o Direito aparecem no tratamento de Marx sobre a servidão russa à luz da relação entre o Estado, a nobreza e os servo. Enquanto o autor renano demonstra a todo tempo que o Estado e o Direito russos não possuíam efetivamente qualquer (...) função de progresso na Rússia, para Marx existia no desenvolvimento da questão da emancipação dos camponeses enservados ao final da década de 1850 e nas tensões entre o Estado, a aristocracia e os servos russos um real potencial para mudanças profundas na outrora retrógrada Rússia. (shrink)

Carl Schmitt's friend/enemy principle is exposed to in-depth philosophical analysis and historical examination with the aim of showing that the political follows hostility, violence and terror as form follows matter. The book argues that the partisan is an umbrella concept that includes the national and global terrorist.

Research in ethical AI has made strides in quantitative expression of ethical values such as fairness, transparency, and privacy. Here we contribute to this effort by proposing a new family of metrics called “decisional value scores” (DVS). DVSs are scores assigned to a system based on whether the decisions it makes meet or fail to meet a particular standard (either individually, in total, or as a ratio or average over decisions made). Advantages of DVS include greater discrimination capacity between types (...) of ethically relevant decisions and facilitation of ethical comparisons between decisions and decision-making systems, including across different modalities (for instance: human, machine, or coupled human–machine systems). After clarifying ambiguities in the concept of “decision” itself, including the question of how to individuate the decisions made by a system, we discuss the role and meaning of “decision” in common AI and machine learning approaches such as decision trees, neural networks, SVMs, and unsupervised classifiers. We then show how DVSs may be defined for several ethical values of interest, with an extended discussion of transparency. Finally, we explore how such metrics can be applied to real decision-making systems through two case studies: evaluations of LLMs for transparency; and evaluations of criminal risk assessment tools for utility, rights violations, fairness, and transparency. (shrink)

The aggregation of consistent individual judgments on logically interconnected propositions into a collective judgment on the same propositions has recently drawn much attention. Seemingly reasonable aggregation procedures, such as propositionwise majority voting, cannot ensure an equally consistent collective conclusion. The literature on judgment aggregation refers to such a problem as the \textit{discursive dilemma}. In this paper we assume that the decision which the group is trying to reach is factually right or wrong. Hence, we address the question of how good (...) the various approaches are at selecting the right conclusion. We focus on two approaches: distance-based procedures and a Bayesian analysis. They correspond to group-internal and group-external decision-making, respectively. We compare those methods in a probabilistic model, demonstrate the robustness of our results over various generalizations and discuss their applicability in different situations. The findings vindicate (i) that in judgment aggregation problems, reasons should carry higher weight than conclusions and (ii) that considering members of an advisory board to be highly competent is a better strategy than to underestimate their advice.". (shrink)

Emotion-processing impairment represents a risk factor for the development of somatic illness, affecting negatively both health-related quality of life and disease management in several chronic diseases. The present pilot study aims at investigating the associations between alexithymia and depression, anxiety, and HRQoL in patients with Hashimoto’s thyroiditis ; examining the association between these three psychological conditions together with HRQoL, and thyroid autoantibodies status as well as thyroid echotexture in patients with HT; and comparing the intensity of all these clinical psychological (...) features in patients with HT versus controls. Twenty-one patients with serologically or ultrasonographically verified HT and 16 controls with non-toxic goiter or postsurgical hypothyroidism were recruited for this study. Serum thyrotropin and free thyroxine, as well as thyroid autoantibodies, were assayed. Alexithymia, depression, anxiety, and HRQoL were assessed with Toronto Alexithymia Scale; Beck Depression Inventory, second edition; Hamilton Anxiety Rating Scale; and Health Survey Short-Form 36, respectively. A negative relationship between the difficulty to describe feelings and the cognitive component of depression was found. Besides, patients with seronegative HT had lower somatic anxiety than patients with HT who tested positive. Besides, no statistically significant difference was found between patients with HT and controls with regard to somatic anxiety. The present study suggests the relevance of alexithymia in patients suffering from HT, which may be intertwined with a possible state of underreported depression that is mainly expressed through physical complaints. Promoting the capability to describe and communicate feelings could contribute to psychological elaboration and coping with the disease and, consequently, to the improvement of self-management and perceived HRQoL. (shrink)

Hobbes's philosophical discourse is deconstructed as the interplay of the drama of individual behavior as perceived by rational agents and the detached analysis of conflict a by a political geometer . The author solves some long-standing problems in Hobbesian political philosophy (e.g., the role of glory, Hobbes' pessimism) and shows the consistency of Hobbes's attempt to derive absolutism as the only stable political association.

Who are computer hackers? What is free software? And what does the emergence of a community dedicated to the production of free and open source software--and to hacking as a technical, aesthetic, and moral project--reveal about the values of contemporary liberalism? Exploring the rise and political significance of the free and open source software movement in the United States and Europe, Coding Freedom details the ethics behind hackers' devotion to F/OSS, the social codes that guide its production, and the political (...) struggles through which hackers question the scope and direction of copyright and patent law. In telling the story of the F/OSS movement, the book unfolds a broader narrative involving computing, the politics of access, and intellectual property. E. Gabriella Coleman tracks the ways in which hackers collaborate and examines passionate manifestos, hacker humor, free software project governance, and festive hacker conferences. Looking at the ways that hackers sustain their productive freedom, Coleman shows that these activists, driven by a commitment to their work, reformulate key ideals including free speech, transparency, and meritocracy, and refuse restrictive intellectual protections. Coleman demonstrates how hacking, so often marginalized or misunderstood, sheds light on the continuing relevance of liberalism in online collaboration. (shrink)

La clôture des religieuses et les rapports de genre dans les couvents italiens (fin XVIe – début XVIIe siècle). L’article examine les changements dans les rapports de genre introduits par les normes du Concile de Trente sur les religieux, en particulier celles concernant la clôture des moniales. À Florence et Bologne prises comme terrains d’observation, les correspondances de l’archevêque Alessandro de’Medici avec le monastère florentin des Murate (1579-1606) et de l’archevêque de Bologne Ludovico Ludovisi avec ses vicaires (1624-1627) permettent de (...) discuter la “perméabilité” de la clôture, un concept avancé par la critique récente. Les règles de la clôture n’ont interrompu ni les rapports étroits des monastères avec la cité et la société, ni la présence dans les couvents de filles à éduquer, veuves et femmes en rupture de ban conjugal, mais elles ont fortement réduit l’autonomie des religieuses, en déléguant aux évêques et à la Congrégation romaine sur les Religieux le contrôle de l’entrée dans les monastères. Les effets de la clôture tridentine à l’intérieur des monastères se traduisent par des changements significatifs dans la hiérarchie des offices, l’organisation de la communauté par classes d’âge et l’orientation des affects vers des personnes du même sexe. En ce qui concerne les rapports de genre, enfin, le rôle des confesseurs, référents masculins privilégiés des nonnes (que ce soit sur le plan spirituel ou sur celui des équilibres internes du monastère), se renforce. (shrink)

The combination of individual judgments on logically interconnected propositions into a collective decision on the same propositions is called judgment aggregation. Literature in social choice and political theory has claimed that judgment aggregation raises serious concerns. For example, consider a set of premises and a conclusion in which the latter is logically equivalent to the former. When majority voting is applied to some propositions (the premises) it may give a different outcome than majority voting applied to another set of propositions (...) (the conclusion). This problem is known as the doctrinal paradox. The doctrinal paradox is a serious problem since it is not clear whether a collective outcome exists in these cases, and if it does, what it is like. Moreover, the two suggested escape-routes from the paradox - the so-called premise-based procedure and the conclusion-based procedure - are not, as I will show, satisfactory methods for group decision-making. In this paper I introduce a new aggregation procedure inspired by an operator defined in artificial intelligence in order to merge knowledge bases. The result is that we do not need to worry about paradoxical outcomes, since these arise only when inconsistent collective judgments are not ruled out from the set of possible solutions. (shrink)

The Ostrogorski paradox and the discursive dilemma are seemingly unrelated paradoxes of aggregation. The former is discussed in traditional social choice theory, while the latter is at the core of the new literature on judgment aggregation. Both paradoxes arise when, in a group, each individual consistently makes a judgment, or expresses a preference, (in the form of yes or no) over specific propositions, and the collective outcome is in some respect inconsistent. While the result is logically inconsistent in the case (...) of the discursive paradox, it is not stable with respect to the level of aggregation in the case of the Ostrogorski paradox. In the following I argue that, despite these differences, the two problems have a similar structure. My conclusion will be twofold: on the one hand, the similarities between the paradoxes support the claim that these problems should be tackled using the same aggregation procedure; on the other hand, applying the same procedure to these paradoxes will help clarify the strengths and weaknesses of the aggregation method itself. More specifically, I will show that an operator defined in artificial intelligence to merge belief bases can deal with both paradoxes. (shrink)

Although organizational and situational factors have been found to predict burnout, not everyone employed at the same workplace develops it, suggesting that becoming burnt out is a complex, multifaceted phenomenon. The aim of this study was to elucidate perceptions of conscience, stress of conscience, moral sensitivity, social support and resilience among two groups of health care personnel from the same workplaces, one group on sick leave owing to medically assessed burnout (n = 20) and one group who showed no indications (...) of burnout (n = 20). The results showed that higher levels of stress of conscience, a perception of conscience as a burden, having to deaden one’s conscience in order to keep working in health care and perceiving a lack of support characterized the burnout group. Lower levels of stress of conscience, looking on life with forbearance, a perception of conscience as an asset and perceiving support from organizations and those around them (social support) characterized the non-burnout group. (shrink)

After a brief discussion of Kreisel’s notion of informal rigour and Myhill’s notion of absolute proof, Gödel’s analysis of the subject is presented. It is shown how Gödel avoids the notion of informal proof because such a use would contradict one of the senses of “formal” that Gödel wants to preserve. This Gödelian notion of “formal” is directly tied to his notion of absolute proof and to the question of the general applicability of concepts, in a way that overcomes both (...) Kreisel and Myhill’s conceptions. This paper aims to contribute to the present-day debate on informal and epistemic mathematics, focusing on what appears necessary for a better understanding of the issues at stake. (shrink)