Children with developmental dyslexia and at its risk have difficulties in the acquisition of foreign languages, especially non-transparent English. The problems of such pupils concern various aspects of the language system but in particular relate to the ability to read and spell. The research literature dedicated to effective preventative methods and dyslexia treatment suggests that both children with dyslexia and at its risk need phonological awareness training and multi-sensory learning. It is also known that prevention and early treatment is more (...) effective than therapeutic intervention used in older students. Experts in foreign language acquisition recommend that children have contact with longer oral texts and live language. A recently-published report on the methods of English language teaching in Polish primary schools shows that the lessons conducted there do not realise the majority of the aforementioned recommendations. As a consequence, they do not serve any pupils including those with dyslexia and at its risk. A method which meets most of the demands mentioned above is “The Good Start Method for English”. It is a new program of teaching the English language designed for five to seven-year-olds, which at the same time ensures support for the psychomotor development of children, leading to acceleration in learning progress. (shrink)

Although developmental dyslexia is frequently diagnosed in Poland, little knowledge of effective treatment for this disorder is available in Polish society. Remedial teachers for many years have applied traditional methods aimed at correction and compensation for affected cognitive functions and academic skills. Otherwise, although western therapies are regularly advertised in the media, their effectiveness has rarely been subject to scientific investigation. Since the assumptions underlying some approaches are not consistent with current understanding of cognitive function, they may attract negative expert (...) appraisal. Unfortunately, it seems that fashion in dyslexia therapy is resistant to rare expressions of criticism from the scientific community. The purpose of this article is to promote awareness about effective treatment for specific reading disorders. Teachers’ greater understanding in this area should help Polish dyslexic children and their parents, who may be confused by offers of misguided therapy and sharp business practise. It is hoped that this article will clarify the situation. In this review of modern English journal articles, focus is on remedial teaching of reading, and more specifically, support for dyslexic students experiencing difficulties in decoding. Here we are concerned only with therapy in alphabetic languages in which individual speech sounds correspond to letters. Analysis of articles from the last six years leads to the conclusion that the most effective therapy for the reading disorder is training in phonological awareness and consolidation of letter-sound knowledge. However, these skills should be practised in the context of reading. (shrink)

It is often suggested that during development the brain barriers are immature. This argument stems from teleological interpretations and experimental observations of the high protein concentrations in fetal cerebrospinal fluid (CSF) and decreases in apparent permeability of passive markers during development. We argue that the developmental blood–CSF barrier restricts the passage of lipid‐insoluble molecules by the same mechanism as in the adult (tight junctions) rendering the paracellular pathway an unlikely route of entry. Instead, we suggest that both protein and passive (...) markers are transferred across the epithelium through a transcellular route. We propose that changes in volume of distribution can largely explain the decrease in apparent permeability for passive markers and that developmentally regulated cellular transfer explains changes in CSF protein concentrations. The blood–CSF tight junctions are functionally mature from very early in development, and it appears that transfer from blood into embryonic brain occurs predominately via CSF rather than the vasculature. BioEssays 30:237–248, 2008. © 2008 Wiley Periodicals, Inc. (shrink)

According to the expertise defense, practitioners of the method of cases need not worry about findings that ordinary people’s philosophical intuitions depend on epistemically irrelevant factors. This is because, honed by years of training, the intuitions of professional philosophers likely surpass those of the folk. To investigate this, we conducted a controlled longitudinal study of a broad range of intuitions in undergraduate students of philosophy (n = 226), whose case judgments we sampled after each semester throughout their studies. Under the (...) assumption, made by proponents of the expertise defense, that formal training in philosophy gives rise to the kind of expertise that accounts for changes in the students’ responses to philosophically puzzling cases, our data suggest that the acquired cognitive skills only affect single case judgments at a time. There does not seem to exist either a general expertise that informs case judgments in all areas of philosophy, or an expertise specific to particular subfields. In fact, we argue that available evidence, including the results of cross-sectional research, is best explained in terms of differences in adopted beliefs about specific cases, rather than acquired cognitive skills. We also investigated whether individuals who choose to study philosophy have atypical intuitions compared to the general population and whether students whose intuitions are at odds with textbook consensus are more likely than others to drop out of the philosophy program. (shrink)

The aim of this paper is to characterize varieties of Heyting algebras with decidable theory of their finite members. Actually we prove that such varieties are exactly the varieties generated by linearly ordered algebras. It contrasts to the result of Burris [2] saying that in the case of whole varieties, only trivial variety and the variety of Boolean algebras have decidable first order theories.

Explainable artificial intelligence has become a vitally important research field aiming, among other tasks, to justify predictions made by intelligent classifiers automatically learned from data. Importantly, efficiency of automated explanations may be undermined if the end user does not have sufficient domain knowledge or lacks information about the data used for training. To address the issue of effective explanation communication, we propose a novel information-seeking explanatory dialogue game following the most recent requirements to automatically generated explanations. Further, we generalise our (...) dialogue model in form of an explanatory dialogue grammar which makes it applicable to interpretable rule-based classifiers that are enhanced with the capability to provide textual explanations. Finally, we carry out an exploratory user study to validate the corresponding dialogue protocol and analyse the experimental results using insights from process mining and argument analytics. A high number of requests for alternative explanations testifies the need for ensuring diversity in the context of automated explanations. (shrink)

The directionality of space-number association (SNA) is shaped by cultural experiences. It usually follows the culturally dominant reading direction. Smaller numbers are generally associated with the starting side for reading (left side in Western cultures), while larger numbers are associated with the right endpoint side. However, SNAs consistent with cultural reading directions are present before children can actually read and write. Therefore, these SNAs cannot only be shaped by the direction of children’s own reading/writing behavior. We propose six distinct processes (...) – one biological and five cultural/educational – underlying directional SNAs before formal reading acquisition: (i) Brain lateralization, (ii) Monitoring adult reading behavior, (iii) Pretend reading and writing, and rudimentary reading and writing skills, (iv) Dominant attentional directional preferences in a society, not directly related to reading direction, (v) Direct spatial-numerical learning, (vi) Other spatial-directional processes independent of reading direction. In this mini-review, we will differentiate between these processes, elaborate when in development they might emerge, discuss how they may create the SNAs observed in preliterate children and propose how they can be studied in the future. (shrink)

Psychobiological responses to music have been examined previously in various naturalistic settings in adults. Choir singing seems to be associated with positive psychobiological outcomes in adults. However, evidence on the effectiveness of singing in children and adolescents is sparse. The COVID-19 outbreak is significantly affecting society now and in the future, including how individuals engage with music. The COVID-19 pandemic is occurring at a time when virtual participation in musical experiences such as singing in a virtual choir has become more (...) prevalent. However, it remains unclear whether virtual singing leads to different responses in comparison with in-person singing. We evaluated the psychobiological effects of in-person choral singing in comparison with the effects of virtual choral singing in a naturalistic pilot within-subject study. A group of children and young adolescents from a school in Salzburg, Austria were recruited to take part in the study. Subjective measures were taken pre- and post-singing sessions once a week. Additionally, salivary biomarkers and quantity of social contacts were assessed pre- and post-singing sessions every second week. Psychological stability, self-esteem, emotional competences, and chronic stress levels were measured at the beginning of in-person singing as well as at the beginning and the end of the virtual singing. We observed a positive impact on mood after both in-person and virtual singing. Over time, in-person singing showed a pre-post decrease in salivary cortisol, while virtual singing showed a moderate increase. Moreover, a greater reduction in stress, positive change in calmness, and higher values of social contacts could be observed for the in-person setting compared to the virtual one. In addition, we observed positive changes in psychological stability, maladaptive emotional competences, chronic stress levels, hair cortisol, self-contingency and quality of life. Our preliminary findings suggest that group singing may provide benefits for children and adolescents. In-person singing in particular seems to have a stronger psychobiological effect. (shrink)

A theoretical analysis of the concept of lifetime and mean life of unstable elementary particles is presented. New analytic formulas for lifetime and mean life as a function of decay width Γ and the mass of unstable particle are derived for Breit-Wigner and Matthews-Salam energy distributions. It is demonstrated that, for unstable particles with a larger width or decay energy threshold, the deviation from the generally accepted mean life τ m =Γ −1 is significant. The behavior of the decay law (...) P(t) for small times is analyzed, and it is shown that the Breit-Wigner distribution violates the condition P(t = 0) = 0, whereas the Matthews-Salam distribution satisfies it. (shrink)

Objectives Study participants are 46 women with Mayer-Rokitansky-Küster-Hauser syndrome. Occurrence of the M-R-K-H syndrome is one in 4000-5000 female children. It was investigated whether coping styles mediate the effect of neuroticism on positive and negative affect, and whether this mediation is moderated by the level of N as well as whether this moderated mediation is moderated by length of awareness of illness. Methods: Neuroticism, coping style as well as positive and negative emotions were assessed using the Polish version of NOE-FFI, (...) CISS and Scale of Emotional State. Results: Emotion coping style fully or partly mediated the relationship between neuroticism and emotions and these mediations were moderated by the level of N. Additionally, direct effect of neuroticism on NA was moderated by the time for which a patient has been aware of the disease. Conclusions: The level of neuroticism and the length of illness are important factors for the psychological functioning of women with M-R-K-H Syndrome. In women with medium and high neuroticism, effect of N on NA was indirect and also direct - but only in those who have been aware of the diagnosis for 6 years or more. Relations with positive emotions were different: the indirect effect was observed only in women with a moderate and low neuroticism. (shrink)

Celem tego artykułu jest analiza znaczeń pojęcia ekosocjalizmu we współczesnym dyskursie filozoficznym i politycznym. W pierwszym kroku przeprowadzam rozróżnienie pomiędzy ekosocjalizmem jako ruchem a ekosocjalizmem jako teorią. Globalny ruch ekosocjalistyczny jednoczą postulaty polityczne. W jego skład wchodzą jednak nurty o różnorodnych założeniach teoretycznych. Skupiam się na opozycji pomiędzy nurtami nawiązującymi do tradycji marksistowskiej a nurtami, które w ślad za Joanem Martinezem-Alierem można nazwać „neonarodnictwem ekologicznym”, czyli odwołującymi się do tradycyjnych etyk i wartości istniejących społeczności, tak jak w przypadku licznych ruchów (...) rdzennych i ekofeministycznych. Nurty te różnią się poglądami na wiele kwestii, w tym na kwestię rozwoju. W drugim kroku, rozważając ekosocjalizm jako teorię, wyróżniam dwa stanowiska. Zgodnie z pierwszym z nich, reprezentowanym przez Joela Kovela i Michaela Löwy’ego, myśl Marksa należy uzupełnić o wymiar ekologiczny. Zgodnie z drugim stanowiskiem, którego przedstawicielem jest John Bellamy Foster, ekosocjalizm to idea Marksowska, przedstawiona w Kapitale. Wysuwając na pierwszy plan pojęcia metabolizmu i rysy metabolicznej, Foster odkrywa ekologiczny, we współczesnym sensie, wymiar myśli dojrzałego Marksa. Wykazuję, że należy odróżnić ekosocjalizm w znaczeniu politycznym od ekosocjalizmu w znaczeniu filozoficznym. Na poziomie filozoficznym natomiast, rozbieżność stanowisk ma swoją genezę w interpretacji ontologii Marksa: Kovel i Löwy są kontynuatorami tradycji marksizmu-humanizmu, a Foster zrywa z tą tradycją i odczytuje ontologię Marksa w perspektywie materializmu epikurejskiego. (shrink)

Na podstawie prześledzenia genezy Dzieci nędzy (1913) i historii komponowania tekstu dokonano ciekawych ustaleń z zakresu działań twórczych najgłośniejszego autora Młodej Polski – Stanisława Przybyszewskiego. Badania ujawniły m.in. niechęć pisarza do (czy może: nieumiejętność) radykalnej modyfikacji raz dokonanych zapisów tekstowych i wzrost literackiej efektywności z dala od wielkich miast. Kolacjonowanie przekazów powieści oraz lektura dokumentów osobistych pozwoliły stwierdzić, że znaczący wpływ na ostateczny kształt Dzieci nędzy miały powikłania osobiste i przykre okoliczności życiowe, które znacząco determinowały (czy raczej: destruowały) proces pisarski (...) Przybyszewskiego, oraz ingerencja domagającego się uzupełnień wydawcy, któremu pisarz skwapliwie przyznał rację, dopisując kilka rozdziałów. Te sumiennie dokonane poprawki świadczą o tym, jak ważne były dla pisarza uwagi redakcyjne w udoskonalaniu tekstu. Najważniejsze odkrycie, do jakiego prowadzą badania tekstologiczne, dotyczy jednak autorskiej rezygnacji z zamierzonego pierwotnie poematu prozą i przetransponowania jego idei w formę powieściową. Ta decyzja – będąca rodzajem kapitulacji w zmaganiach z tworzywem – świadczyła de facto o nowatorskim myśleniu Przybyszewskiego o powieści i sprawiła, że Dzieci nędzy to niezwykle ciekawy artystycznie, nowoczesny zapis stanów psychicznych. Od strony rozwiązań konstrukcyjno-narracyjnych to niewątpliwie jedna z najciekawszych powieści Przybyszewskiego. (shrink)

Zmiany dokonujące się w języku na przestrzeni dziejów są wynikiem zmian w rzeczywistości pozajęzykowej. Nowe elementy leksyki są m. in. efektem procesu zapożyczenia z innych języków. Słowa te w momencie przejmowania ich przez inny język tracą swe wszelkie pierwotne powiązania z innymi leksemami, które miały w języku, z jakiego zostały przejęte, i wchodzą w nowe relacje semantyczne z istniejącymi już w danym poiu wyrazowym słowami, stając się jego nieodłącznym elementem. W procesie asymilacji na płaszczyźnie semantycznej wchodzą one w nowe dla (...) siebie relacje paradygmatyczne i syntagmatyczne, wpływając znacząco na strukturę danego pola wyrazowego i przyczyniając się do zmian w jego obrębie. Zapożyczone z innego języka wyrazy mogą ze względu na swe znaczenie stać się w danych polach elementami dominującymi lub też pojawić się w nowym otoczeniu leksykalnym obok rodzimych synonimów. Jedynie użytkownik języka, przy uwzględnieniu kontekstu językowego i sytuacyjnego, decyduje o ich użyciu. (shrink)

We współczesnej polszczyźnie występuje wiele słów, będących zapożyczeniami z języka niemieckiego. Najstarsze zapożyczenia pojawiły się w języku polskim wraz z nowymi przedmiotami codziennego użytku i były jednocześnie zapożyczeniami fonetycznymi. Obecnie nie wyczuwa się już ich obcego pochodzenia. Słowa przejęte z niemieckiego podlegały w języku polskim licznym i różnorodnym procesom adaptacyjnym, dotyczącym m. in. ich formy gramatycznej, fonetycznej czy też morfologii. Ulegały one również licznym zmianom znaczeniowym, tzn. rozszerzały bądź zawężały swe pierwotne znaczenie, zmieniały również zabarwienie stylistyczne. Poza tym można też (...) mówić o przesunięciu znaczenia wyrazu zapożyczonego oraz o zjawisku przejmowania tylko niektórych znaczeń pierwotnych danego słowa, pochodzącego z języka niemieckiego. Ciekawym zjawiskiem jest również występowanie we współczesnej polszczyźnie takich wyrazów niemieckiego pochodzenia, które jednak nie posiadają już swych odpowiedników we współczesnym języku niemieckim, tzn. w nowo-wysoko-niemieckim, gdyż zostały one zapożyczone bardzo dawno, ale znaleźć je można jeszcze w słownikach etymologicznych języka polskiego, gdzie podawane są jak o odpowiedniki niemieckie danych wyrazów, np. fastryga, framuga itd. Całkowite podporządkowanie się regułom języka przejmującego dany wyraz obcego pochodzenia świadczy o jego zakorzenieniu się w danym języku oraz dopasowaniu się do nowego systemu językowego. Wyrazy pochodne od danego zapożyczenia, frazeologizmy, w których te zapożyczenia występują, synonimy, pojawiające się w danym języku obok wyrazów zapożyczonych oraz frekwencja zapożyczeń w danym języku świadczą o stopniu zakorzenienia się danego wyrazu obcego pochodzenia w języku polskim. (shrink)

Sidgwick's defence of esoteric morality has been heavily criticized, for example in Bernard Williams's condemnation of it as 'Government House utilitarianism.' It is also at odds with the idea of morality defended by Kant, Rawls, Bernard Gert, Brad Hooker, and T.M. Scanlon. Yet it does seem to be an implication of consequentialism that it is sometimes right to do in secret what it would not be right to do openly, or to advocate publicly. We defend Sidgwick on this issue, and (...) show that accepting the possibility of esoteric morality makes it possible to explain why we should accept consequentialism, even while we may feel disapproval towards some of its implications. (shrink)

The paper is a reaction to M. Grygianiec’s reply in a discussion sparked on by his paper on the status of the epiphenomenalism objection. I correct some misunderstandings. In addition I offer an intuitive summary of my reconstruction of the debate. I show that Grynianiec’s reply does not undermine the reconstruction. I argue that to the extent that (external) praise of Davidson’s ideas is possible, so is external criticism. Moreover, I argue that interpretative charity demands a charitable stance not only (...) to Davidson but also to his critics. (shrink)

The paper is a critical reaction to M. Grygianiec’s discussion of the status of the epiphenomenalism objection to anomalous monism. Grygianiec argues that the objection does not arise for Davidson if one takes his nominalism seriously. I show that Grygianiec construes the epiphenomenalism charge as an internal one. I argue that it can be viewed as an external objection to anomalous monism, moreover one that is justified, adequate and charitable. I distinguish two interpretations of the objection and show that an (...) appeal to charity can explain why an apparently inadequate form the objection is often preferred. (shrink)

Contemporary axiological research shows that what is intuitive, perceptible, and at the same time fundamental, is not clearly visualized, concrete and expressible for language. The problem of the definition of value is further complicated when the matter concerns the top of the axiological ladder, absolute value, what is sacred. In the article, the author relies mainly on the achievements of eminent phenomenologists, theologians and religious studies scholars who had a decisive influence on the European understanding of the term sacrum (including (...) R. Otto, M. Scheler, G. van der Leeuw, M. Eliade). It also refers to the achievements of Polish philosophers. The sacrum is presented as a factor ordering reality in an axiological and ontological sense. The very search for the highest value appears to be a matter of the utmost importance, a special task facing homo religiosus. (shrink)

Mycobacterium tuberculosis is the causative agent of pulmonary tuberculosis which has infected one third of the mankind and causes 2–3 million deaths worldwide each year. The persistence of the infection ensues from the ability of M. tuberculosis to subvert host immune responses in favor of survival and growth of mycobacteria in macrophages. The mechanisms by which M. tuberculosis manipulates the host immune system have only recently come to light. These activities are attributed to lipoarabinomannans (LAM) and their precursors lipomannans (LM), (...) two predominant glycolipids of M. tuberculosis cell wall. LM are able to skew anti‐mycobacterial immune responses into un‐protective ones, while LAM evoke immunosupression upon binding to macrophage and dendritic cell receptors specialized in binding to “self” host components. A newly emerging idea implicates plasma membrane rafts in LM and LAM signaling. Depending on acylation patterns, the glycolipids may either directly incorporate into the raft membrane via mannosylphosphatidylinositol anchors or interact with raft‐associated proteins to affect the assembly of receptor signaling complexes. BioEssays 30:943–954, 2008. © 2008 Wiley Periodicals, Inc. (shrink)

It is widely accepted that the machinery of multicultural societies and liberal democratic systems is dependent upon various forms of dialogue - dialogue between political parties, between different social groups, between the ruling and the ruled. But what are the conditions of a democratic dialogue and how does the philosophical dialogic approach apply to practice? Exploring the multifaceted nature of the concepts of dialogue and democracy, and critically examining materializations of dialogue in social life, this book offers a variety of (...) perspectives on the theoretical and empirical interface between democracy and dialogue. (shrink)

In this paper the authors address the issue of investments made by family businesses. Their study attempted to verify the level of investments made by Polish family businesses in comparison with the level of investments made by Polish non-family businesses. The study focused on the analysis of investment flows of Polish listed companies included in the WIG index for the years 2006-2018. A total of 233 companies were analyzed, including 177 non-family businesses and 56 family businesses. The results corroborated the (...) argument that Polish listed non-family businesses invest much more money than family businesses. It was also observed that only a small percentage of companies in both groups invest their finances in research and development. (shrink)

The research concerned the determinants of social competencies, which are significant indicators of the quality of interpersonal relations. The aim of the study was to verify the connection between social competencies and temperamental traits. The respondent group included 220 university students of different faculties aged 19-24. Social competencies were measured with the use of a Social Competencies Questionnaire by Anna Matczak, while temperamental traits were measured with The Formal Characteristics of Behaviour-Temperament Inventory, by Bogdan Zawadzki and Jan Strelau. The research (...) proved that activity, emotional reactivity and sensory sensitivity are significant predictors of social competencies. The predictive value of these traits differs depending on the kind of measured competency. (shrink)

The aim of the paper is to explore the interrelation between persuasion tactics and properties of speech acts. We investigate two types of arguments ad: ad hominem and ad baculum. We show that with both of these tactics, the structures that play a key role are not inferential, but rather ethotic, i.e., related to the speaker’s character and trust. We use the concepts of illocutionary force and constitutive conditions related to the character or status of the speaker in order to (...) explain the dynamics of these two techniques. In keeping with the research focus of the Polish School of Argumentation, we examine how the pragmatic and rhetorical aspects of the force of ad hominem and ad baculum arguments exploit trust in the speaker’s status to influence the audience’s cognition. (shrink)

This paper is devoted to clarifying Hannah Arendt’s concept of political freedom by the means of analysing its structure. My analysis proceeds in three steps. Firstly, I distinguish a pre-political concept of freedom as exercising spontaneity, which is at the root of Arendt’s understanding of political freedom. Secondly, I analyse her account of freedom as exercising action and indicate its relationship to the elementary freedom of spontaneity. Arendt endowed action with a distinguished importance, since she assumed that it is the (...) only activity within the vita activa, which has a special anthropological and axiological significance. According to Arendt, only action allows one to truly experience the fundamental aspect of the human condition, which is the fact of human plurality; it is also the only activity which allows one to exercise specifically public principles, such as solidarity, equality, or justice. Thirdly, I indicate how these two accounts of freedom translate into Arendt’s concept of political freedom. This analysis reveals that the Arendtian concept of political freedom is markedly original. She did not define it in a usual manner, i.e. through indicating bundles of legal and political rights which determine the accepted scope of participation in the public affairs. The inherent part of her concept of political freedom is a specific account of how it must be exercised. Political freedom understood as the participation in governance exercised through action is not merely an activity of instrumental, but also anthropological and axiological importance, which is due to the special anthropological and axiological meaning of action. In the final section, I discuss the practical dimension of Arendt’s theory. She doubted whether the traditional representative democracy is capable of accommodating her ‘rich’ ideal of political freedom, therefore she proposed an alternative account of political system based on councils. I formulate objections against this proposition and demonstrate that councils would presumably fail to accommodate Arendt’s exacting account of political freedom. (shrink)

This paper is devoted to clarifying Hannah Arendt’s concept of political freedom by the means of analysing its structure. My analysis proceeds in three steps. Firstly, I distinguish a pre-political concept of freedom as exercising spontaneity, which is at the root of Arendt’s understanding of political freedom. Secondly, I analyse her account of freedom as exercising action and indicate its relationship to the elementary freedom of spontaneity. Arendt endowed action with a distinguished importance, since she assumed that it is the (...) only activity within the vita activa, which has a special anthropological and axiological significance. According to Arendt, only action allows one to truly experience the fundamental aspect of the human condition, which is the fact of human plurality; it is also the only activity which allows one to exercise specifically public principles, such as solidarity, equality, or justice. Thirdly, I indicate how these two accounts of freedom translate into Arendt’s concept of political freedom. This analysis reveals that the Arendtian concept of political freedom is markedly original. She did not define it in a usual manner, i.e. through indicating bundles of legal and political rights which determine the accepted scope of participation in the public affairs. The inherent part of her concept of political freedom is a specific account of how it must be exercised. Political freedom understood as the participation in governance exercised through action is not merely an activity of instrumental, but also anthropological and axiological importance, which is due to the special anthropological and axiological meaning of action. In the final section, I discuss the practical dimension of Arendt’s theory. She doubted whether the traditional representative democracy is capable of accommodating her ‘rich’ ideal of political freedom, therefore she proposed an alternative account of political system based on councils. I formulate objections against this proposition and demonstrate that councils would presumably fail to accommodate Arendt’s exacting account of political freedom. (shrink)

The Uppsala School in philosophy and the Vienna Circle are prima facie similar currents in contemporary philosophy. Both reject metaphysics, claim that reality is a spatio­‑temporal realm and adhere to noncognitivism in terms of values. However, justifications of these assumptions are quite different. In the following article we reconstruct main theses of both mentioned currents and then we indicate their impact on one of the major jurisprudential movements, namely Scandinavian Legal Realism. We focus on Alf Ross’ legal philosophy, as it (...) was an attempt to accommodate both: the philosophy of the Uppsala School and of the Vienna Circle. We trace those two sources of inspiration in Ross’ theory of legal validity and of legal concepts. (shrink)

The aim of this paper is to provide a model that allows the representation and analysis of circularity in ethotic structures, i.e. in communication structures related to the speaker’s character and in particular, his credibility. The paper studies three types of cycles: in self-referential sentences, embedded testimony and ethotic begging the question. It is shown that standard models allow the reconstruction of the circularities only if those circular utterances are interpreted as ethotic arguments. Their alternative, assertive interpretation requires enriching the (...) existing models with a purely ethotic component related to the credibility of the performer of any (not necessarily argumentative) speech act. (shrink)