We introduce the new notion of additive “multibox” for linear logic proof-nets. Thanks to this notion, we define a cut-elimination procedure which associates with every proof-net of multiplicative and additive linear logic a unique cut-free one.

​Authors, Factions, and Courts in Angevin England: A Literature of Personal Ambition (12th-13th Century) advances a model for historical study of courtly literature by foregrounding the personal aims, networks, and careers as the impetus for much of the period’s literature. The book takes two authors as case studies – Gerald of Wales and Walter Map – to show how authors not only built their own stories but also used popular narratives and the tools of propaganda to achieve their own, personal (...) goals. The purpose of this study is to overturn the top-down model of political patronage, in which patrons – and particularly royal patrons – set the cultural agenda and dictate literary tastes. Rather, Fabrizio De Falco argues that authors were often representative of many different interests expressed by local groups. To pursue those interests, they targeted specific political factions in the changeable political scenario of Angevin England. Their texts reveal a polycentric view of cultural production and its reception. The study aims to model a heuristic process which is applicable to other courtly texts besides the chosen case-studies. (shrink)

Objectives: Investigate and identify the relationship between physical exercise and cognitive performance measured by using different cognitive tests taken from Cambridge Brain Science.Methods: Thirty subjects, divided into two groups, undergo twelve cognitive tests from CBS. A comparison between the pre- and post-exercise results in terms of cognitive performance differences is carried out. Regression analysis between Heart Rate Variability features and CBS tests results is performed.Results: In most CBS tests, there is an improvement, or at least a confirmation, of the subject's (...) cognitive ability, for both groups. Reasoning, concentration, and planning tests seem to undergo critical positive changes. The regression analysis, performed by using a set of different algorithms, has demonstrated that it is possible, by monitoring the HRV during the exercise, to predict to some extent the cognitive performance, i.e., the CBS tests results. The best performing regression algorithms are Simple Linear and REPTree. The statistical analysis has proved that physical activity is statistically useful for the subjects in improving their cognitive performance.Conclusions: This study has numerically appraised the improvement, the conservation, or the worsening on different aspects of cognition. The found mathematical relationship between physical exercise and cognitive performance suggests that it is possible to predict the beneficial effect of various exercises on executive and attentive control. (shrink)

We give the precise correspondence between polarized linear logic and polarized classical logic. The properties of focalization and reversion of linear proofs are at the heart of our analysis: we show that the tq-protocol of normalization for the classical systems and perfectly fits normalization of polarized proof-nets. Some more semantical considerations allow us to recover LC as a refinement of multiplicative.

The present report is a, somewhat lengthy, addendum to "A new deconstructive logic: linear logic," where the elimination of cuts from derivations in sequent calculus for classical logic was studied ‘from the point of view of linear logic’. To that purpose a formulation of classical logic was used, that - as in linear logic - distinguishes between multiplicative and additive versions of the binary connectives.The main novelty here is the observation that this type-distinction is not essential: we can allow classical (...) sequent derivations to use any combination of additive and multiplicative introduction rules for each of the connectives, and still have strong normalization and confluence of tq-reductions.We give a detailed description of the simulation of tq-reductions by means of reductions of the interpre- tation of any given classical proof as a proof net of PN2 (the system of second order proof nets for linear logic), in which moreover all connectives can be taken to be of one type, e.g., multiplicative.We finally observe that dynamically the different logical cuts, as determined by the four possible combinations of introduction rules, are independent: it is not possible to simulate them internally, i.e., by only one specific combination, and structural rules. (shrink)

BackgroundThe aim of this study is to explore the association of family socioeconomic status and internal and external schoolwork support with adolescents’ school satisfaction and whether schoolwork support modifies these associations.MethodsData come from the cross-sectional Health Behavior in School-aged Children study collected in 2018 from Slovak 15-year-olds. SES was measured by Family Affluence Scale. School satisfaction was measured via school engagement and attitudes toward education. Schoolwork support was measured regarding two groups of sources inside and outside the family, separately. Logistic (...) regression models were used to explore the associations of SES and schoolwork support with school satisfaction as well as the moderating effect of schoolwork support.ResultsAdolescents with low SES were more likely to feel indifferent toward school and education, and similarly, adolescents who did not have schoolwork support inside or outside the family. Schoolwork support moderated the associations of SES with school satisfaction. Adolescents with low and middle SES without support inside or outside the family were more likely to feel indifferent than satisfied.ConclusionAdolescents from low and middle SES without schoolwork support inside or outside the family are more likely to feel indifferent toward school and education. (shrink)

The purpose of this study is to examine the relationship between contextual work-related factors on the one hand, in terms of job demands (i.e., risk factors) and job resources (i.e., protective factors), and work-family conflict in teachers on the other. Building on the Job Demands-Resources (JD-R) model, we hypothesized that job demands, namely qualitative and quantitative workload, are positively associated with work-family conflict in teachers. Moreover, in line with the buffer hypothesis of the JD-R, we expected job resources, in terms (...) of support from supervisor, job autonomy, and participation in decision making, to affect this association, which is expected to be stronger when job resources are low. The study was conducted in an Italian secondary school. Overall, 122 teachers completed a self-report questionnaire aimed at determining work-family conflict, as well as job demands and resources. The hypothesized relationships were tested using moderated multiple regression. The results of this study largely support our predictions. First, both aspects of workload were positively associated with work-family conflict. Secondly, job resources, including support from supervisor and participation in decision making, buffered this association, which was stronger when resources were low. On the contrary, job autonomy did not buffer the association between workload and work-family conflict. Overall, the results of this study are consistent with the Job Demands-Resources model and contribute to to the understanding of work–family conflict among teachers. More specifically, our study suggests that teachers with high levels of job resources, namely support from supervisor and participation in decision making, can effectively cope with job demands, in terms of both qualitative and quantitative workload, thus preventing negative consequences such as conflict between work and family domains. Interventions aimed at preventing work-family conflict among teachers should encourage organizations to optimize the balance between job demands and resources, as well as the identification and training of the workers at risk of work-family conflict. (shrink)

BackgroundImplementing the routine consultation of patient advance directives in hospital emergency departments and emergency medical services has become essential, given that advance directives constitute the frame of reference for care personalisation and respect for patients’ values and preferences related to healthcare. The aim of this study was to assess the levels and relationship of knowledge and attitudes of nursing and medical professionals towards advance directives in hospital emergency departments and emergency medical services, and to determine the correlated and predictor variables (...) of favourable attitudes towards advance directives.MethodsObservational, descriptive, and cross-sectional study. The study was conducted in the emergency department of a second-level hospital and in the emergency medical service. Data collection was performed from January 2019 to February 2020. The STROBE guidelines were followed for the preparation of the study.ResultsA total of 173 healthcare professionals responded to the questionnaire. Among them, 91.3% considered that they were not sufficiently informed about advance directives, and 74% acknowledged not having incorporated them into their usual practice. Multinomial analysis indicated a statistically significant relationship between the variable emergency medical service and having more favourable attitudes towards consulting the advance directives in their practical application (OR 2.49 [95% CI 1.06–5.88]; p = 0.037) and compliance in complex scenarios (OR 3.65 [95% CI 1.58 − 8.41]; p = 0.002). Working the afternoon and night shift was a predictor variable for obtaining a higher score with respect to attitudes in complex scenarios.ConclusionThere is an association between the level of knowledge that nursing and medical professionals have about advance directives and the scores obtained on the attitude scales at the time of practical implementation and in complex scenarios. This shows that the more knowledge professionals have, the more likely they are to consult patients' advance directives and to respect their wishes and preferences for care and/or treatment. (shrink)

The paper focuses on the current conditions of the Shoah’s memory transmission. The purpose is to point out the frames where a contemporary theory and praxis of the collective memory can be formulated. The first section, reffering to most recent studies, shows both components caracterizing today’s process of memorizing the Shoah: the passagge from memory to post-memory (Hirsh) and the whirling increase of the chance to record and reproduce the past (Derrida, Ferraris). In the second secion, referring to this theoretical (...) frame, I analyse the radical trasformations of the monument as the traditional media of the european public memory. The reference to the empirical case of the Denkmal für die ermordeten Juden Europas, the Shoah’s Memorial designed by Peter Eisenman, underlines the shift from monument to counter-monument (Young, J. E.) by materializing both the troubles and an inventive strategy to exit the saturation of the current memorial speech. (shrink)

The Birth of the Philologist from the Spirit of Schopenhauer’s Philosophy. Nietzsche’s Inaugural Lecture On the Personality of Homer. This essay highlights Schopenhauer’s decisive and unexplored role in Nietzsche’s Über die Persönlichkeit Homers. Following Schopenhauer’s negative assessment of the study of history, Nietzsche criticizes F. A. Wolf’s organic systematization of the sciences of antiquity and foregrounds the aesthetic dimension of philology. Contrary to Wolf, Nietzsche believes that historical investigation is subordinate to the essential pedagogical function of philology; and only through (...) its aesthetic component can philology establish which literary works of antiquity are to be considered truly “classical.” The debate on the Homeric question after the publication of Wolf’s Prolegomena ad Homerum illustrates that philologists have paradoxically become opponents and “destroyers” of the ideal of antiquity. Nietzsche shows how a methodological approach inspired by Schopenhauer’s philosophy can revive the relationship between philology and art. Nietzsche’s arguments to counter Wolf’s thesis about the problem of Homer’s personality implicitly rest on Schopenhauer’s aesthetics. In particular, through Schopenhauer’s conception of genius, Nietzsche rehabilitates the individuality of the poetic author of the Iliad and Odyssey, even though this poet does not correspond to the one referred to as “Homer” in antiquity. (shrink)

The aim of this paper is to investigate among a group of non-profit organizations: a) the effect of ethical leadership on volunteers’ satisfaction, affective organizational commitment and intention to stay in the same organization; b) the role played by job satisfaction as a mediator in the relationship between ethical leadership and volunteers’ intentions to stay in the same organization, as well as between ethical leadership and affective commitment. An anonymous questionnaire was individually administered to 198 Italian volunteers of different non-profit (...) organizations. The questionnaire contained the Ethical Leadership Scale, the Volunteers Satisfaction Index, the Affective organization Scale, as well as questions regarding the participants’ age, sex, type of work, level of education, length of their volunteer works, intention to volunteer in the following months in the same organization. The construct as well the effects of EL on volunteers is approached in light of the Social Exchange Theory and the Social Learning Theory. Structural equation models were used to test hypothesized relationships. The results confirm the role of mediation of volunteer satisfaction in the relationships between the variables studied. In particular, ethical leadership was found to be positively associated both with volunteers’ intention of staying and with their affective commitment. In the first case this relationship is fully explained by the mediation of the volunteers’ satisfaction, while the latter is explained by both direct and indirect factors. To the authors’ knowledge, this the first attempt to understand the role played by ethical leadership on volunteers’ behavior and, more in general, in the management of non-profit organizations. Findings are relevant both for practitioners and managers of non-profit organization, since they suggest the relevance of the perception of ethical leadership by volunteers, as well as for scholars, since they further deepen the knowledge on EL and its effects on the followers. Limits of the study: the questionnaire was administered only among a group of non-statistical sample of volunteers. Furthermore, the study reached only volunteers from Italian non-profit organization. (shrink)

In The Treasure of the City of Ladies, Christine de Pizan gives various categories of laywomen advice on how to love God (the teachings about loving God) and to lead their lives (the teachings of worldly prudence). This article explores the connection between the two kinds of teachings focusing on the relevance of manners for spirituality and morality. Worldly prudence is about manners, reputation, and self-discipline—that is, about how people should behave toward one another and present themselves to each other. (...) I argue that for de Pizan, manners are spiritually and morally relevant in two ways. On the one hand, they convey how individuals should practice the teachings about loving God in a way that agrees with these individuals’ status in their communities. On the other hand, by practicing the virtues with good manners, people can make surprising moral and spiritual gains and so deepen the teachings about loving God. (shrink)

Dans l’Italie médiévale et moderne, les femmes qui sont exclues de la citoyenneté politique participent à diverses formes de construction du lien d’appartenance à un lieu particulier. La mobilité conditionne par ailleurs les statuts individuels, non seulement en raison des diverses manières de définir citoyens et étrangers, mais aussi du fait que les contenus du droit municipal ne se ressemblent pas d’un endroit à l’autre, surtout en matière de droits et de capacités des femmes. Cet essai illustre les principales thématiques (...) sous-tendant la citoyenneté féminine et examine ensuite les réactions des femmes et des hommes à la multiplicité des normes locales et à leurs différences. (shrink)

Los principales patógenos víricos que podemos ad­quirir ingiriendo alimentos contaminados son los norovirus, el virus de la hepatitis A y el virus de la hepatitis E que se propagan principalmente a través de la vía fecal oral. En los últimos años, la incidencia de brotes de transmisión alimentaria causados por estos patógenos ha experimentado un aumento considerable, en parte debido al comercio globalizado y a los cambios en los hábitos de consumo. Las matrices alimentarias que mayor riesgo representan para el (...) consumidor son los moluscos bivalvos, ve­getales de IV gama, frutas tipo baya y platos listos para comer. Actualmente las técnicas moleculares son las más habituales para la detección de estos patógenos en alimentos, aunque toda­vía existen dudas acerca del significado de la presencia de estos genomas víricos en términos de seguridad alimentaria. La infec­tividad de estos patógenos en alimentos viene también determi­nada por su elevada persistencia ambiental y por su resistencia a los tratamientos aplicados para la conservación de los alimentos. (shrink)

vollumul I. A-M -- volumul II. N-Z ; urmat de Index sintagmatic.

Con el título "La sombra de lo invisible.