Background: Mental fatigue can impact physical demands and tactical behavior in sport-related contexts. Small-sided games are often used to develop a specific sport-related context. However, the effects of mental fatigue on physical demands and tactical behaviors during soccer SSGs have not been aggregated for systematical assessment.Objective: This systematic review was conducted to compare the effects of mental fatigue vs. control conditions in terms of the total running distance and tactical behavior of soccer players during SSGs.Methods: The data sources utilized were (...) PubMed, PsycINFO, Scielo, Scopus, SPORTDiscus, and Web of Science. The study eligibility criteria were established based on PICOS: Population: healthy youth and young adult men soccer players with regular training practice and belonging to teams with regular competitions; Intervention: exposed to mental fatigue-induced protocols only before SSGs; Comparator: control conditions before SSGs; Outcomes: physical demands and tactical behavior ; Study design: counterbalanced cross-over design; and only full-text and original articles written in English.Results: The database search initially identified 111 titles. From those, six articles were eligible for the systematic review and meta-analysis. Results showed no significant effect of fatigue on total running distance and tactical behavior.Conclusions: A non-significant effect of mental fatigue on total running distance and tactical behaviors performed by soccer players during SSGs was found in this systematic review. (shrink)

BackgroundThe use of dedicated training programs for improving decision-making (DM) in team sports players has grown in the last several years. Approaches such as imagery training, video-based training, or game-based drills are some of the interventions used in youth players in order to improve DM. However, no systematic reviews or meta-analyses have been conducted to summarize the main evidence regarding the effects of these programs on the players and identify the magnitude of the effects compared to control groups.ObjectiveThis systematic review (...) (with meta-analysis) was conducted to assess the effects of training programs on the DM of youth team sports players.Data SourcesThe data sources utilized were PubMed, PsycINFO, Scopus, SPORTDiscus, and Web of Science.Study eligibility criteriaThe criteria included the following: (i) youth (≤ 18 years old) team sports players with no restriction on sex or competitive level; (ii) players subjected to training programs to develop DM; (iii) control groups; (iv) pre–post outcomes related to tactical behavior, technical execution, reaction, and decision time; and (v) controlled trials.ResultsThe database search initially identified 2497 titles. From these, six articles were eligible for the systematic review and meta-analysis. The results showed a significant beneficial effect of DM interventions on tactical behavior (ES = 1.12;p= 0.035;I2= 80.0%; Egger’s testp= 0.066), whereas no significant effect of DM interventions on technical execution was found (ES = 0.74;p= 0.180;I2= 69.1%; Egger’s testp= 0.873).ConclusionThe DM interventions were significantly effective in improving tactical behavior in youth team sports players independently from the number of sessions to which players were exposed. In addition, DM interventions were significantly effective in improving technical execution. However, the results should be carefully interpreted due to the heterogeneity of the articles’ overall methodological quality. Future DM interventions should consider using combined approaches that allow players to develop both tactical behavior and technical execution. (shrink)

Background: Small-sided games are an adjusted form of official games that are often used in training scenarios to introduce a specific tactical issue to team sports players. Besides the acute effects of SSGs on players' performance, it is expectable that the consistent use of these drill-based games induces adaptations in the technical execution and tactical behaviors of youth team sports players.Objective: This systematic review with meta-analysis was conducted to assess the effects of SSG programs on the technical execution and tactical (...) behaviors of young and youth team sports players.Data Sources: The data sources utilized were PubMed, Scopus, SPORTDiscus, and Web of Science.Study Eligibility Criteria: Young and youth team sports players (i.e., 17 and <17 SSG training sessions, respectively.Conclusions: This systematic review and meta-analysis revealed a significant beneficial effect of using SSG training programs for enhancing technical execution in young and youth players. The benefits were similar despite the various numbers of training sessions applied. Further studies should add tactical behaviors as one of the outcomes for controlling the effects of SSG training programs. (shrink)

The aim of this meta-analysis was to evaluate the effects of complex training on sprint, jump, and change of direction ability among soccer players. After an electronic search, 10 peer-reviewed articles were considered in the meta-analysis. The athletes included in this meta-analysis were amateur to professional level male soccer players. These studies incorporated CT in soccer players who were compared to a control group. Significant moderate to large improvements were observed in the CT group [sprint: standard mean difference = 0.92–1.91; (...) jump: SMD = 0.96–1.58; COD: SMD = 0.97–1.49] when compared to control groups. Subgroup analysis were also conducted based on age, duration, and competitive level. The beneficial effects of CT were greater in players <18 vs. ≥18 years, after ≥8 vs. <8 weeks and among professional vs. amateur players. In conclusion, regular soccer training programs may be supplemented with CT to improve sprint, jump, and COD performance. A longer duration of CT seems to be optimal in improving the physical abilities of soccer players. Professional players and <18 years players may benefit more from CT program. (shrink)

BackgroundFor a long time, in sports, researchers have tried to understand an expert by comparing them with novices, raising the doubts if the visual search characteristics distinguish experts from novices. Therefore, the aim of the present study was to review and conduct a meta-analysis to evaluate the differences in visual search behavior between experts and novices in team sports athletes.MethodsThis systematic review with meta-analysis followed the PRISMA 2020 and Cochrane's guidelines. Healthy team athletes were included, which engaged in regular practice, (...) from any sex or competitive level, specifically classified a priori as expert or novice in the original research. We considered only research published in peer-reviewed journals, with no limitations regarding date or language. It was considered healthy team sport athletes engaged in regular practice. The scenarios could be in situ or film-based. The databases of EBSCO, PubMed, Scopus, SPORTDiscus, and Web of Science were used to perform the searches. The risk of bias was calculated through the RoBANS tool.ResultsFrom a total of 6,257 records, of which 985 were duplicates, titles and abstracts of 5,272 were screened, and 45 required full-text analysis. Of those, 23 were excluded due to not fulfilling the eligibility criteria regarding participants. In the end, 22 studies were selected, however, as two studies were part of the same trial and were analyzed conjointly.DiscussionExperts showed to be older and with more years of practice. The ability to distinguish experts from novices was not so clear regarding the variables analyzed. This could be due to the strategies chosen in each study, which were specific to each scenario, and when grouping all together, it was lost information within non-representative averages. The distinction between experts and novices was not clear, showing a lot of heterogeneity in the included studies. The expert classification itself may have been the conditioning aspect for these results, retaining the doubt and the need for more studies in the field.Systematic review registrationThe protocol was pre-registered in OSF. (shrink)

Este artículo tiene por objeto explicar cuándo en el estado de necesidad la distinción entre un mal mayor o menor responde al universo ético consecuencialista y desde qué consideraciones no lo haría; segundo, explicar por qué es posible desde el principio del doble efecto la ponderación de la vida humana, aceptando la objetivización de sus parámetros según los efectos de una acción. Por ello, a continuación trataremos en la primera sección el concepto de mal en clave consecuencialista y, posteriormente, moral (...) absolutista. Se trata de un análisis sobre la materia que reconoce, en la segunda sección, la importancia de la existencia de estos universos en la ponderación de males. Luego, contrastaremos nuestros razonamientos con las soluciones que, para casos semejantes, se proponen desde el doble efecto para algunas situaciones de estado de necesidad. Finalmente, en la tercera sección, entregaremos los criterios de una política criminal para distinguir y no encubrir exigencias deónticas en el estado de necesidad. (shrink)

Papers on nanotechnology in the Scientific Electronic Library Online database were studied bibliometrically. The terms ‘nanotechnology’, ‘nanoparticle’, ‘graphene’, ‘fullerene’, ‘nanotube’ and ‘quantum dot’ were used for the search in their singular and plural forms in three languages, and a total of 1205 papers were selected for the study to assess the frequency rates of the study variables. The results of the study are presented in this article focusing on gender differences.

In this article, we apply the literature on the ethics of choice-architecture (nudges) to the realm of virtual reality (VR) to point out ethical problems with using VR for empathy-based nudging. Specifically, we argue that VR simulations aiming to enhance empathic understanding of others via perspective-taking will almost always be unethical to develop or deploy. We argue that VR-based empathy enhancement not only faces traditional ethical concerns about nudge (autonomy, welfare, transparency), but also a variant of the semantic variance problem (...) that arises for intersectional perspective-taking. VR empathy simulations deceive and manipulate their users about their experiences. Despite their often laudable goals, such simulations confront significant ethical challenges. In light of these goals and challenges, we conclude by proposing that VR designers shift from designing simulations aimed at producing empathic perspective-taking to designing simulations aimed at generating sympathy. These simulations, we claim, can avoid the most serious ethical issues associated with VR nudges, semantic variance, and intersectionality. (shrink)

As Social Economy financial institutions, credit unions have traditionally been considered less efficient than traditional banking entities. However, like banks and savings banks, they have to be as efficient and competitive as possible to survive in today’s business environment, especially at times of crisis. To date, there have been very few studies on their efficiency and practically none for the crisis period. Moreover, almost all the existing studies assess only financial efficiency, without considering their social function. This study examines the (...) levels of both financial and social efficiency in Spanish credit unions as well as their main determinants during the recent crisis. We apply the two-stage double bootstrap data envelopment analysis methodology based on panel data corresponding to all the credit unions active in Spain between 2008 and 2013. The empirical results indicate that financial and social efficiency achieved an acceptable level, although on average the former was slightly greater than the latter. We also find that both age and merger and acquisition activity were positively influential on the financial efficiency of credit unions but had a significant negative effect on their social efficiency. Moreover, the regional location of such entities and the financial crisis were also crucial determinants of both types of efficiency. Our findings are therefore useful for all the stakeholders of credit unions to know if these entities have been efficient according to a double bottom line accounting in the crisis period and hence to maintain successful social management that is compatible with satisfactory financial efficiency. (shrink)

En este artículo se busca comprender las epistemologías de la manigua, entendidas como, un complejo sistema de conocimientos y vida, en diálogo con el monte y el agua en el Departamento de Chocó, Colombia. Las categorías de ‘conocimiento ancestral’ y ‘tradicional’ le asignan un carácter involutivo al ribereño; lo anclan al pasado. Las epistemologías de la manigua como metodología implican un diálogo interepistémico entre el método genealógico y las mañas de Tío Conejo, Ananse, Miguel Caicedo, Jaime Arocha, Sergio Mosquera, Lydia (...) Cabrera, en especial, Rogerio Velásquez. La oralidad representa potentes guayacanes3. Los ribereños son portadores de conocimientos propios: espiritualidad, ombligamiento, partería, etc. Esta racionalidad se encuentra amenazada por el colonialismo. (shrink)

The present paper deals with the ontological status of numbers and considers Frege ́s proposal in Grundlagen upon the background of the Post-Kantian semantic turn in analytical philosophy. Through a more systematic study of his philosophical premises, it comes to unearth a first level paradox that would unset earlier still than it was exposed by Russell. It then studies an alternative path, that departin1g from Frege’s initial premises, drives to a conception of numbers as synthetic a priori in a more (...) Kantian sense. On this basis, it tentatively explores a possible derivation of basic logical rules on their behalf, suggesting a more rudimentary basis to inferential thinking, which supports reconsidering the difference between logical thinking and AI. Finally, it reflects upon the contributions of this approach to the problem of the a priori. (shrink)

v. 1. Introducción a la filosofía del derecho -- v. 2. Introducción a la ciencia del derecho.

India is the emerging country with the world’s greatest social banking program, so Indian banks are required to finance the weaker sectors of society that are excluded from the traditional financial system, while also providing mainstream banking services to non-priority sectors. For social banks to promote the ethical–social management of their dual mission and to be successful in today’s business environment, they must be as efficient as possible in both dimensions of their banking activity. Whereas the efficiency of Indian banks (...) in the financial dimension is well understood, to date there has been no research evaluating their double bottom-line of achieving social and financial goals. Our study applies an innovative Network Slack-Based DEA model to evaluate how efficient Indian public banks are when providing credit to priority and non-priority sectors. We also explore the main factors influencing bank efficiency. Results suggest that Indian public banks have performed relatively well in both activities, although social efficiency has been slightly greater than financial efficiency. Moreover, their commitment to priority sector lending has not come into conflict with the profit-seeking objectives of mainstream banking services. As regards determinants of social and financial efficiency, there are countervailing forces played by regional wealth, bank size, branch networks, and rural location. Our findings are therefore useful for stakeholders of Indian public banks as they indicate if these entities have adequately managed their double bottom-line, and hence if they are critical for poverty alleviation and development in India. (shrink)

Los juegos de mesa son un producto cultural emergente estrechamente vinculado a actividades de aprendizaje informal sobre disciplinas variadas como la biología, las matemáticas o los idiomas. De entre estas áreas de conocimiento destaca la Historia, ya que desde el inicio del juego de mesa moderno hace 50 años se han publicado miles de juegos inspirados en las más diversas eras y hechos históricos, desde la Prehistoria hasta la Guerra Fría. Existe un interés académico creciente para desarrollar métodos de Aprendizaje (...) Basado en Juegos para aprovechar el potencial del juego como herramienta didáctica, pero la mayor parte se centra en el uso de videojuegos en el aula, y son escasos los trabajos que analizen el juego de mesa histórico en tanto que actividad de aprendizaje informal. Este trabajo explora el contenido histórico recreado en miles de juegos de mesa entendidos como motores de aprendizaje informal, con el objetivo de conocer qué temas de la Historia aparecen en juegos de mesa comerciales y, por tanto, son susceptibles de aprendizaje por parte de los jugadores. Para ello se ha desarrollado un método computacional basado en el modelado de tópicos y la visualización de datos para la identificación automática de temas en juegos de mesa a partir de sus descripciones textuales. El análisis presentado aquí se centra en un estudio comparativo de tres períodos con una escala diferente: a) la época Medieval, b) el siglo XIX, y c) Segunda Guerra Mundial. Los resultados del trabajo muestran como las temáticas tratadas en los juegos dependen directamente de la época en la que éstos se enmarcan, así como la existencia de marcados sesgos hacia la sobrerepresentación de guerras y la historia de Europa. Estas contribuciones sugieren que los juegos de mesa pueden promover el aprendizaje informal crítico sobre hechos históricos y al mismo tiempo reforzar una percepción pública desigual de nuestro pasado. (shrink)

This paper aspires to meet a philosophical challenge posed to the author to give treatment to what was seen as a particularly nice Meinongian case1; namely the case of Galician Meigas. However, through the playful footpaths of enchanted Galician Meigas, I rehabilitate some relevant discussion on the justification of belief formation and come to some poignant philosophical insights regarding the understanding of possibilities. I hope both the leading promoter of the challenge and, of course, other philosophical readers are satisfied with (...) the outcome. (shrink)

Boghossian’s (2003) proposal to conditionalize concepts as a way to secure their legitimacy in disputable cases applies well, not just to pejoratives – on whose account Boghossian first proposed it – but also to thick ethical concepts. It actually has important advantages when dealing with some worries raised by the application of thick ethical terms, and the truth and facticity of corresponding statements. In this paper, I will try to show, however, that thick ethical concepts present a specific case, whose (...) analysis requires a somewhat different reconstruction from that which Boghossian offers. A proper account of thick ethical concepts should be able to explain how ‘evaluated’ and ‘evaluation’ are connected. (shrink)

CONTENIDO: Lo político, el arte y la religión, expresiones de identidad y diferencia - Nietzsche y Heidegger, precursores de la diferencia - Vattimo y los caminos de la diferencia - Identidad o diferencia como opción política.

En Ciencia de la lógica, Hegel finaliza la lógica objetiva con un largo estudio de las categorías modales (realidad, necesidad y posibilidad). Nuestra propuesta es que tal estudio hay que entenderlo en confrontación directa con la situación dejada por Kant en los principios del entendimiento puro de KrV. Para defender tal tesis expondremos, en primer lugar, la exposición kantiana del problema; en segundo lugar, el desarrollo de la lógica de la esencia dentro de la obra; y, por último, la nueva (...) interpretación que propone Hegel de las categorías modales. (shrink)

En este trabajo examinamos el tópico de la responsabilidad en el derecho penal internacional a la luz de la filosofía de John Searle, y del fallo dictado por la Corte Penal Internacional en el caso de Thomas Lubanga. En el primer acápite analizamos la declaración de responsabilidad penal en función de la teoría de actos de habla de Austin y de Searle, tratándola como un acto ilocucionario cuyo significado es dependiente de un marco institucional específico. Luego, en el segundo acápite, (...) mostramos de qué forma tal marco puede reconstruirse como un ejemplo paradigmático de la realidad social construida descrita por Searle, especialmente en virtud del nexo entre mente, lenguaje y sociedad. A nuestro juicio, los conceptos de intencionalidad colectiva, atribución de funciones de estatus y poderes deónticos son fundamentales para entender tal nexo. En efecto, tal como argumentamos en la tercera sección, los sistemas de poderes deónticos asociados al derecho internacional no solo explican la aparición de Tribunales penales internacionales, como la Corte Penal Internacional, sino además el carácter imprescriptible de los crímenes de lesa humanidad. Los acuerdos internacionales que promueven y protegen los derechos humanos, y que tratan la imprescriptibilidad de aquellos crímenes, son objeto de análisis en la sección final, en donde exponemos algunas reflexiones finales a partir del caso Lubanga. (shrink)

We argue that moral judgment studies currently conducted utilizing virtual reality (VR) devices must confront a dilemma due to how virtual environments are designed and how those environments are experienced. We begin by first describing the contexts present in paradigmatic cases of naturalistic moral judgments. We then compare these contexts to current traditional (vignette-based) and VR-based moral judgment research. We show that, contra to paradigmatic cases, vignette-based and VR-based moral judgment research often fails to accurately model the situational features of (...) paradigmatic moral judgments. In particular, we compare and contrast six recent VR studies to support our view that only simulations high in context-realism and perspectival-fidelity can produce ‘virtually real experiences.’ After analyzing the constituents of a virtually-real experience, we go on to propose guidelines for the creation of VR studies. These guidelines serve two purposes. First, we aim to increase the ecological validity of such studies in order to advance our understanding of moral judgments. Second, we believe that such guidelines should inform how Institutional Review Boards assess VR research. We show that our guidelines are urgently needed given the current lax review standards in place. (shrink)

In this article, the authors bring two personal journeys together: one author’s liberationist journey, sparked by a search for justice and liberation in the slums of Guatemala City, and the other’s lifelong commitment to practical theology and spatial justice in South Africa. A practical theology of liberation is the result of life experiences in countries of the Global South amidst the search for justice and liberation. The worlds that come together in this article are René Girard’s mimetic theory, liberation theology (...) and practical theology. This article raises the question of the cross-contextuality of practical theology and the theological application of mimetic theory to develop innovative theological methodologies that respond to the collective woundedness of the urban context in the Global South.Contribution: The main contribution of this article is the use of three seemingly different theological approaches in conjunction. This article opens the door to inform practical theology with René Girard’s mimetic theory and liberation theology. (shrink)

Neste trabalho, pretendemos avaliar criticamente algumas das teses de John McDowellsobre a natureza da virtude, tal como expostas em seu artigo “Virtue and Reason” e, ao fazê-lo,expor algumas de suas limitações. Mais especificamente, tratarei o que vejo como problemas emsua apresentação da virtude como uma forma de conhecimento, e sua proposta – corporificada natese da unidade das virtudes – de que as virtudes comumente reconhecidas deveriam ser vistascomo manifestações parciais da virtude enquanto tal. Também enfocarei a assertiva de McDowellde que (...) o conhecimento que constitui a virtude não pode ser visto como tendo um conteúdoproposicional que se preste a uma codificação em princípios de conduta – a tese de nãocodificabilidade– e a relação da postura pessoal de McDowell com a empreitada mais ampla daética de virtudes. (shrink)

In this text, I consider two examples in the history of emancipation and manumission of enslaved, Black populations in the Caribbean and South America in order to theorize a colonial mode of conceiving of freedom at play in the first half of the nineteenth century. This mode is marked by the figure of the promise, enacting a notion of freedom as a constantly deferred, external compensation. Indeed, instead of an immediate decision deeming the practice of enslavement and trade of human (...) beings unacceptable, and an effective liberation of the enslaved Black populations in these different emancipation proclamations, the various histories of manumission in Latin America and the Caribbean show a long series of political and legal attempts to reduce and limit the extent of the slave trade that deferred the process of liberation for decades. Moreover, in many of these territories the practice did not end with the official proclamation of emancipation but was continued by illegal practices and mutations into legal forms of exploitation and oppression that are still operative today. After outlining this first trajectory, reconstructing the promise of manumission in the historical examples of Martinique (as read by Édouard Glissant) and La Gran Colombia and the Republic of Nueva Granada (contemporary Panamá, Colombia, Venezuela, and Ecuador), I analyze a second mode of investigation in examples of individual and collective strategies of liberation coming from the enslaved themselves, as reconstructed by contemporary feminist scholars in South America. These strategies appropriate liberation not as a promise, but as a negotiation and calculation that begins with the enslaved’s resistance to their oppressive conditions and that ultimately depends on the external concession by juridical authorities. In the third section of the chapter, I read these practices not as marronage, as they are sometimes approached, but as a different mode of turning back to these glimpses of freedom that more effectively challenge the narrative of emancipation and, with it, the promise of manumission in our present. -/- . (shrink)

_ Source: _Volume 48, Issue 1, pp 1 - 28 This paper is an attempt to think through Derrida’s newly discovered _Geschlecht III_, the third and missing installment of Derrida’s four part series on Heidegger and _Geschlecht_. I argue that Derrida’s reading of Heidegger in _Geschlecht III_ needs to be situated within the philosophico-political context of Derrida’s 1984–85 seminar—given under the general title _Philosophical Nationality and Nationalism_—from which _Geschlecht III_ is extracted. In the first part of the paper, I reconstruct (...) Derrida’s general problematic of national-humanism as he lays it out in the opening sessions of the seminar, before arriving at his reading of Heidegger, who will be part of “a sequence of German national-philosophism,” as Derrida calls it. In the second part, the paper turns explicitly to _Geschlecht III_ where, as I show, Derrida’s thoroughgoing denunciation of a national-humanism in Heidegger becomes all the more telling when seen through the theoretical matrix of the seminar. (shrink)

Uma exegese filosófica da problemática do niilismo na obra de Cioran, partindo de uma análise lexicográfica dos usos discursivos deste conceito, mas sem se limitar a ele (que está longe de ter um estatuto privilegiado no discurso cioraniano). Levando em conta a reviravolta que marca uma cisão no âmago da obra de Cioran, na transição entre seus escritos romenos e franceses, e combinando à lexicografia um procedimento propriamente hermenêutico do tema do niilismo, conclui-se com uma reflexão sobre o nexo entre (...) niilismo e humor na obra francesa de Cioran, notadamente em Silogismos da amargura (1952), em contraste com o niilismo da “seriedade infinita” (sinônimo de desespero) que caracteriza a sua obra romena. (shrink)

In this paper, I accomplish a conceptual task and a historical task. The conceptual task is to argue that (1) Einstein’s Principle of Separability (henceforth “separability”) is not a supervenience principle and that (2) separability and entanglement are compatible. I support (1) by showing that the conclusion of Einstein’s incompleteness argument would still follow even if one assumes that the state of a composite system does not supervene on the states of the subsystems, and by showing that what Einstein says (...) in “Quantum Mechanics and Reality” (1948) strongly suggests that separability is not a principle about how subsystem states relate to the state of composite systems. I support (2) by showing that if separability was incompatible with entanglement, then Einstein’s argument would be incoherent in a trivial way. Thus, by arguing for (1) and (2) I directly challenge what has been, and still is, a very common reading of separability. The historical task is to offer the first detailed review of the different ways in which separability has been defined by physicists and philosophers in the last 60 years. Among other things, such a review distinguishes three different definitions of the principle, and shows that since the 1990s and up until the present date, it became standard to take separability (as presented by Einstein) to be a supervenience principle. (shrink)

This paper elaborates on the link between different types and degrees of experience that can be gone through within a form of life or collectivity—the so-called levels of immersion—and the development of distinct types of tacit knowledge and expertise. The framework is then probed empirically and theoretically. In the first case, its ‘predictions’ are compared with the accounts of novices who have gone through different ‘learning opportunities’ during a pre-operational training programme for running a huge nickel industrial plant in Brazil. (...) These are also analysed vis-à-vis the experience of an expert who has designed and experienced the outcomes of two pre-operational training sessions in the nickel industry before developing and managing the one discussed here. Theoretically, the framework is used to pinpoint exactly what interactional experts who have developed their expertise through linguistic socialisation alone are able to do as well as to analyse the case of technical connoisseurs. The results indicate that the proposed framework is useful. It supports the design and improvement of training programmes for the development of tacit knowledge while at the same time bringing about a refined analysis of claims concerning the abilities of types of experts and expertise. (shrink)

How can we identify and estimate workers’ tacit knowledge? How can we design a personnel mix aimed at improving and speeding up its transfer and development? How is it possible to implement tacit knowledge sustainable projects in remote areas? In order to answer these questions, it is necessary to distinguish between types of tacit knowledge, to establish what they allow for and to consider their sources. It is also essential to find a way of managing the tacit knowledge ‘stock’ and (...) distribution within the workforce. In short, a conceptual framework is needed to manage tacit knowledge. Based on previous works and 2 years of action research, this paper introduces such a framework and describes its partial application to support the pre-operational training and hiring in a large industrial plant in Brazil. Two contributions emerge from the research. First, the concept of ‘levels of similarity’ is introduced as a means to qualify the experience of workers and estimate the associated tacit knowledge. Second, the capability of carrying out three types of judgement properly and speedily is put forward as being a core ability of those who possess what has been called ‘collective tacit knowledge’ (Collins in Organ Stud 28(2):257–262, 2007). In practical terms, the results indicate the opportunity for companies to capitalize on the experience and tacit knowledge of their workers in a systematic way and with due recognition. Ultimately, positive impacts are expected in their absorptive capacity as well as in their management and human resources systems, accident prevention, productivity and the development of sustainable projects in remote areas. (shrink)

It is often said in physics that if two models of a theory are related by a symmetry, then the two models provide (or could provide) two different representations of the very same situation, alike the case of two maps of different color for the very same city. It is also said that the situations represented by two models of a theory are indiscernible in some ways when the models in question are related by a symmetry of the theory, just (...) like the situation in the interior of the cabin of a train when the train is at rest in the station is empirically indiscernible from the situation in the interior when the train is moving uniformly (in classical mechanics, these two situations are represented by two models related by a boost). In recent years, philosophers of physics have focused a lot of attention in developing various principles that aim to elucidate these and similar remarks on symmetries, models, physical equivalence, and representation that are widespread in physics practice. The goal of the current article is to provide a critical review of these principles, and suggest a new framework for thinking about these kinds of questions. One important upshot of the paper is that questions of indiscernibility, and questions of the representational capacity of models, must be distinguished from one another. (shrink)

Imagine that we are on a train playing with some mechanical systems. Why can’t we detect any differences in their behavior when the train is parked versus when it is moving uniformly? The standard answer is that boosts are symmetries of Newtonian systems. In this paper, I use the case of a spring to argue that this answer is problematic because symmetries are neither sufficient nor necessary for preserving its behavior. I also develop a new answer according to which boosts (...) preserve the relational properties on which the behavior of a system depends, even when they are not symmetries. (shrink)

This paper tracks Derrida’s allusion to the “phoenix motif” in the recently published Life Death seminar, showing how it foreshadows and overlaps with the political problematic of “national humanism” made explicit in Geschlecht III. I argue that, be it in Hegel, Fichte, Nietzsche, or Heidegger, biological life is always in the service of a spiritual life that finds its breath in a certain reappropriation of the German idiom. Following Derrida, I argue that this “philosophy-of-life German” (cet allemand philosophe de la (...) vie) introduces a sinister equivocality between these thinkers and National Socialism, and this in spite of all their prudence to shield their discourses from such a co-option. (shrink)

This paper tracks Derrida’s allusion to the “phoenix motif” in the recently published Life Death seminar, showing how it foreshadows and overlaps with the political problematic of “national humanism” made explicit in Geschlecht III. I argue that, be it in Hegel, Fichte, Nietzsche, or Heidegger, biological life is always in the service of a spiritual life that finds its breath in a certain reappropriation of the German idiom. Following Derrida, I argue that this “philosophy-of-life German” introduces a sinister equivocality between (...) these thinkers and National Socialism, and this in spite of all their prudence to shield their discourses from such a co-option. (shrink)