The progress of Mathematics during the nineteenth century was characterised both by an enormous acquisition of new knowledge and by the attempts to introduce rigour in reasoning patterns and mathematical writing. Cauchy’s presentation of Mathematical Analysis was not immediately accepted, and many writers, though aware of that new style, did not use it in their own mathematical production. This paper is devoted to an episode of this sort that took place in Spain during the first half of the century: It (...) deals with the presentation of a method for numerically solving algebraic equations by José Mariano Vallejo, a late Spanish follower of the Enlightenment ideas, politician, writer, and mathematician who published it in the fourth (1840) edition of his book Compendio de Matemáticas Puras y Mistas, claiming to have discovered it on his own. Vallejo’s main achievement was to write down the whole procedure in a very careful way taking into account the different types of roots, although he paid little attention to questions such as convergence checks and the fulfilment of the hypotheses of Rolle’s Theorem. For sure this lack of mathematical care prevented Vallejo to occupy a place among the forerunners of Computational Algebra. (shrink)

In this article we discuss the political thought of the French philosopher Simone Weil. In particular, we analyse two fundamental elements of her critique of Marxism, namely her reflections on the phenomenon of power and her critique of the theory of the unlimited development of productive forces. We do so in dialogue with two of the pioneers of the ecosocialist critique of Marx in Spain: Manuel Sacristán and Francisco Fernández Buey, both readers of Weil. The aim: to point out (...) the relevance of this philosopher’s thought not only for its influence on some of the great ethical-political reflections of the socialist tradition in the twentieth century, but also for its ability to address the current challenges. (shrink)

La tecnificación y las grandes catástrofes militares y sociales del siglo XX condujeron a un autor como Husserl a reivindicar un concepto como el de Lebenswelt. Tras este acercamiento hay una reflexión sobre el yo y el otro que se ha querido poner de manifiesto en este artículo a fin de destacar dos conceptos como el de posibilidad y facticidad. Las variaciones imaginarias husserlianas y los testimonios de los supervivientes de los campos de exterminio han servido para destacar y definir (...) tales conceptos, así como un acercamiento a la memoria como concepto que podría marcar un punto de contacto entre ambos.The technification and the great military and social disasters of the twentieth century led an author like Husserl to claim a concept like Lebenswelt. Behind this approach there is a reflection on the self and the other that one has wanted to highlight in this article, two concepts such as possibility and factuality. The Husserlian imaginary variations and the testimonies of the survivors of the extermination camps have served to highlight and define such concepts, as well as an approach to memory as a concept that could mark a point of contact between both. (shrink)

This article addresses the work of the German artist Hannah Höch in the light of the struggle for abortion rights in the Weimar Republic. I attempt to show how Höch’s uses of the technique of photomontage can be read as a way of introducing a distance between the work and the viewer that allows us to question the beliefs we use to make sense of the world. Specifically, I discuss her photomontage Mutter, a version of a photograph taken by John (...) Heartfield, and some of her writings and interviews. I also examine closely the material conditions and political debates in which Höch’s work – as a social practice – developed. After a brief introduction and a methodological outline, I present Höch in the context of Berlin Dada and summarise the main underlying arguments of my hypothesis. Namely, that the major interest of Höch’s photomontages lies in the complex articulation of activism and philosophy, and in the way in which they put mainstream categories into question by ‘distancing’ fragments of reality. (shrink)

Although entrepreneurial intention has been widely studied using cognitive models, we still lack entrepreneurial vocation and, therefore, lack disruptive innovations. Entrepreneurship scholars have some understanding of the reasons underlying this weakness, although there is much room for improvement in our learning concerning how to promote entrepreneurship among university students, especially in the transformed context of digital technologies. This paper focuses on the early stages of start-up, and in particular seeks to evaluate what role social and psychological factors play in the (...) development of entrepreneurial intentions. Drawing on network theory, we consider the impact of social networks on entrepreneurial intention. Specifically, we analyze the influence of two types of social networks: face-to-face and online social networks, with the latter proving especially important in digital transformations. In addition, based on affective congruency theory, we relate affect with entrepreneurial intention. Particularly, we evaluate the influence of positive and negative dispositional affectivity on the formation of entrepreneurial intentions. Finally, since affect and emotions can also be related with social relationships, we analyze whether dispositional affectivities influence entrepreneurial intention through the mediation effect of social networks. Using structural equation modeling, we confirm the impact of both online and face-to-face social networks, as well as positive dispositional affectivity on entrepreneurial intention for 589 higher education students in Spain. However, negative dispositional affectivity is not seen to influence entrepreneurial intention. Furthermore, both face-to-face and online social networks are influenced by positive dispositional affectivity. Moreover, these two types of networks can even partially mediate the relationship between positive dispositional affectivity and entrepreneurial intention. Positive dispositional affectivity can thus influence entrepreneurial intention in two different ways: directly and indirectly through both face-to-face and online social networks. This study provides further insights and adds to the literature on affect, social networks, and entrepreneurial intention. From a broader perspective, we also contribute to the literature on disruptive innovations by explaining how the development of entrepreneurial intentions would have positive consequences for university students vis-à-vis achieving these disruptive innovations. (shrink)

Diabetes has been associated with affective disorders which complicate the management of the disease. Emotional intelligence, or the ability to perceive, facilitate, understand, and regulate emotions, has shown to be a protective factor of emotional disorders in general population. The main objective of this study was to systematically review the role of the EI construct in Type 1 and Type 2 diabetics and to observe how EI is related to biological and psychological variables. Comprehensive searches were conducted in PubMed, Scopus, (...) PsycInfo, and Cochrane without time limitations, for studies examining the link between diabetes and EI. A total of 12 eligible studies were selected according to the inclusion criteria. We divided the results into four sections: EI and hemoglobin glycosylated, EI training effects, differences in EI between persons with diabetes and without diabetes, and EI and psychological adjustment and well-being. The results showed negative correlations between EI and HbA1c, positive effects of EI training on quality of life, anxiety, and glycemic control, no differences in EI between people with diabetes and healthy individuals, and, finally, negative correlations between EI and different psychological variables such as diabetes-related anxiety and distress, and positive correlations with quality of life, well-being, and marital satisfaction. This systematic review offers a starting point for a theoretical and practical understanding of the role played by EI in the management of diabetes and reveals that EI is a promising protective factor for biological and psychological variables in this population. (shrink)

La presente comunicación pretende desbrozar el proceso de deshumanizaciónal que fue sometido el ser humano en los campos de exterminio. Todo ello, y en la medida de lo posible, atendiendo de manera fundamental a los testimonios de los sobrevivientes, como Primo Levi, Jean Amery, Víktor Frakl, etc. spa, la pérdida del lenguaje y la imposibilidad de ponerse en el lugar del otro, además de la anulación de la comunicación. Para finalizar con la reivindicación de la memoria y el testimonio como (...) estructura de recuperación de una humanidad perdida. Además de destacar la figura del testigo como la posible transformación de una subjetividad que se ve sometida a un sufrimiento transformador de la relación del hombre con el mundo.The present paper aims to clear a path through the process of dehumanizationto which the human being was subjected in the extermination camps, considering principally, and as far as possible, the testimony of the survivors, such as Primo Levi, Jean Améry and Viktor Frakl. In this process the emphasis has been placed on the reduction to bare flesh, language loss, and the impossibility of putting oneself in the place of another, as well as the annihilation of communication. The paper closes with the claim of memory and testimony as a structure for recovering a lost humanity, and also highlights the figure of the witness as a possible transformation of a subjectivity which undergoes a suffering transforming the relationship between man and world. (shrink)

In this paper we study the axiomatic system proposed by Bourbaki for the Theory of Sets in the Éléments de Mathématique. We begin by examining the role played by the sign \(\uptau \) in the framework of its formal logical theory and then we show that the system of axioms for set theory is equivalent to Zermelo–Fraenkel system with the axiom of choice but without the axiom of foundation. Moreover, we study Grothendieck’s proposal of adding to Bourbaki’s system the axiom (...) of universes for the purpose of considering the theory of categories. In this regard, we make some historical and epistemological remarks that could explain the conservative attitude of the Group. (shrink)

info:eu-repo/semantics/publishedVersion.

La pobreza tiene una base material, la penuria de recursos. Pero su naturaleza es moral, consiste en el reconocimiento de que ciertas situaciones son acreedoras de acciones preventivas o remediadoras. Las sociedades vienen colocando tradicionalmente el umbral de pobreza en el punto por debajo del cual esta en peligro la subsistencia. Pero la conciencia reformista del mundo occidental ha llegado a servirse de la idea de pobreza para señalar los fallos de su compromiso de igualdad social. No se trata tanto (...) de una benévola elevación del baremo, como de una reconceptualización acorde con la ideología política dominante. (shrink)

Fundamentación: el desarrollo de la cultura profesional docente colaborativo se sustenta en los postulados vigotskianos, donde se concibe al profesor como un sujeto comprometido con las demandas y exigencias de la sociedad. Objetivo: socializar las categorías de análisis que se deben tener en cuenta en un colectivo docente para el desarrollo de una cultura profesional colaborativa en el proceso de formación del profesional de la educación superior. Método: se realizó un estudio etnográfico en la Universidad José Martí Pérez, de (...) Sancti Spíritus, apoyada en la metodología cualitativa y un grupo de técnicas posibilitó la recogida de la información. Resultados: se obtuvieron las categorías de análisis que están estrechamente asociadas al deber ser de un docente universitario, portador de esta cultura. Conclusiones: a partir de la coincidencia de criterios sobre los aspectos teóricos y la reflexión colectiva emergieron elementos indispensables en un colectivo para lograr la cultura profesional docente colaborativa a la cual se aspira, elaborados al tener en cuenta su estructura de contenido y forma. Background: the development of collaborative professional teaching culture is based on Vigotskian statements, where the teacher is seen as an individual compromised with the demanding and needs of the society. Objective: Socialize the analytical categories that should be taken into consideration in a teaching staff for the development of collaborative professional teaching culture in the process formation of the professional of higher education. Method: an ethnographic study was carried out in the University José Marti Pérez, from Sancti Spiritus, based on a qualitative methodology and a group of techniques that make data collection possible. Results: The analytical categories obtained were closely linked to the requirements of a university teacher that has this culture. Conclusions: starting from common criteria about theoretical aspects and group reflection, vital elements emerged in the teaching staff to get the collaborative professional teaching culture that is needed, elaborated taking into account its structure of content and form. (shrink)

ABSTRACT The objective of this study was to determine the accuracy of a brief informed consent quiz to detect consent comprehension in individuals with cognitive impairment and to explore the degree to which cognitive domains and recent substance use, independently, predict comprehension. We performed a secondary analysis of two cross-sectional studies in individuals with substance use disorders. The ICQ total score was used as the index test and the Montreal Cognitive Assessment as reference standard in receiver operating characteristic curves. Two (...) independent multiple binary logistic regression models were performed using cognitive domains and days of recent substance use as predictors of ICQ outcome. We analyzed data from 215 and 251 participants, respectively. The ICQ showed moderate accuracy for major cognitive impairment and lower accuracy for mild impairment. Optimal cutoff score was set at 10 points or less for detecting comprehension difficulty. Lower scores in Short-Term Memory, Attention, Language, and Orientation increased the probability of failing the ICQ. A procedure including both the ICQ and cognitive screening measure could improve the accuracy of consent comprehension assessments. (shrink)

Es necesario enfocar escépticamente las pocas referencias a Pitágoras y los pitagóricos contenidas en los diálogos de Platón, pues resulta difícil tomar la medida efectiva de una influencia pitagórica sobre el ateniense. De hecho, las únicas referencias explícitas a Pitágoras (Rep. X 600a-b) y a los pitagóricos (Rep. VII 530c-531a) no nos dicen mucho y, respecto a los personajes tradicionalmente considerados pitagóricos, nuestra información es poco fiable, incierta y a veces contradictoria. Tal prudencia es particularmente útil en el caso de (...) Timeo y del personaje homónimo de este diálogo, cuyo pitagorismo, aunque ampliamente aceptado por los comentaristas, parece muy discutible. Así sólo la aplicación de un método histórico prudente y lúcido puede evitar esta deriva que identifica como pitagórico toda referencia a la transmigración del alma y las matemáticas en sentido amplio. (shrink)

We study the theories I∇n, L∇n and overspill principles for ∇n formulas. We show that IEn ⇒ L∇n ⇒ I∇n, but we do not know if I∇n L∇n. We introduce a new scheme, the growth scheme Crγ, and we prove that L∇n ⇒ Cr∇n⇒ I∇n. Also, we analyse the utility of bounded collection axioms for the study of the above theories.

The expressivist account of knowledge attributions, while claiming that these attributions are nonfactual, also typically holds that they retain a factual component. This factual component involves the attribution of a belief. The aim of this work is to show that considerations analogous to those motivating an expressivist account of knowledge attributions can be applied to belief attributions. As a consequence, we claim that expressivists should not treat the so-called factual component as such. The phenomenon we focus on to claim that (...) belief attributions are non-factual is that of normative doxastic disagreement. We show through several examples that this kind of disagreement is analogous to that of the epistemic kind. The result will be a doxastic expressivism. Finally, we answer some objections that our doxastic expressivism could seem to face. (shrink)

Unfounded—conspiracy and health—beliefs about COVID-19 have accompanied the pandemic worldwide. Here, we examined cross-nationally the structure and correlates of these beliefs with an 8-item scale, using a multigroup confirmatory factor analysis. We obtained a two-factor model of unfounded (conspiracy and health) beliefs with good internal structure (average CFI = 0.98, RMSEA = 0.05, SRMR = 0.04), but a high correlation between the two factors (average latent factor correlation = 0.57). This model was replicable across 50 countries (total N = 13,579), (...) as evidenced by metric invariance between countries (CFI = 0.96, RMSEA = 0.06, SRMS = 0.07) as well as scalar invariance across genders (CFI = 0.98, RMSEA = 0.04, SRMS = 0.03) and educational levels (CFI = 0.98, RMSEA = 0.04, SRMS = 0.03). Also, lower levels of education, more fear of COVID-19, and more cynicism were weakly associated with stronger conspiracy and health beliefs. The study contributes to knowledge about the structure of unfounded beliefs, and reveals the potential relevance of affective (i.e., fear of COVID-19) and cognitive (i.e., cynicism) factors along with demographics, in endorsing such beliefs. In summary, we obtained cross-cultural evidence for the distinctiveness of unfounded conspiracy and health beliefs about COVID-19 in terms of their structure and correlates. (shrink)

Introduction: Connectedness to nature is a concept that reflects the emotional relationship between the self and the natural environment, based on the theory of biophilia, the innate predisposition to the natural environment. However, the biophobic component has largely been ignored, despite, given its adaptive functional role, being an essential part of the construct. If there is a phylogenetic component underlying nature connectedness, biophilic and/or biophobic, there should be evidence of this record from early childhood. The main aim of this study (...) is therefore to describe the emotional attributions identified in five-year-olds. Methodology: Two studies were conducted. In the first, 94 children expressed their concept of nature and made basic emotional attributions to a set of 60 images of natural and urban environments, using a software designed for the study. In the second, 39 children repeated the procedure and provided explanations for their responses. Results: The main results show that, in general, children use both positive and negative emotions, which may be related to a three-dimensional model of emotional attributions to nature. The most widely attributed emotion is happiness, for the images of both natural and built environments. However, fear is the second most common attribution. The role of happiness could be explained by a feeling of security and familiarity that the habitat of the built environment contributes to, while the importance of fear in nature could show an adaptive response of the fear of wild nature in children. This interpretation could be confirmed when analyzing specifically the emotional attributions to the natural environment, classifying the images according to biological and ecosystemic criteria. Thus, for example, more emotional attributions are explained by the "pleasantness" attributed to primary producers and landscapes (e.g. flora), versus attributions of "harm" to the images of secondary and tertiary consumers (e.g. hunters). Conclusions: These results provide evidence in favor of a didactic procedure to study emotional attributions to images of nature in preschool children. They suggest the incorporation of biophobia as an important adaptive factor in connectedness to nature and a tripartite emotional hypothesis based on the valences of the attributed emotions. (shrink)

Background:The high level of satisfaction of users of a health service is largely due to the fact that they receive excellent care from healthcare professionals. Compassionate care is an essential...

Recent research has shown that cultural, linguistic, and sociodemographic peculiarities influence the measurement of trait emotional intelligence. Assessing trait EI in different populations fosters cross-cultural research and expands the construct’s nomological network. In mental health, the trait EI of clinical populations has been scarcely researched. Accordingly, the present study examined the relationship between trait EI and key sociodemographic variables on Trait Emotional Intelligence Questionnaire datasets with mental healthcare patients from three different Spanish-speaking countries. Collectively, these datasets comprised 528 participants, 23% (...) from Chile, 28% from Peru, and 49% from Spain. The sociodemographic variables we used for trait EI comparisons were gender, age, educational level, civil status, and occupational status. Analyses involved Multigroup Exploratory Structural Equation Modelling and analysis of covariance. Our results revealed significant between-country differences in trait EI across the studied sociodemographic variables and interactions between these variables. Measurement invariance across the datasets was attained up to the scalar level regarding gender and education, although analyses on age, civil status, and occupation displayed non-invariance. The resultant psychometric evidence supports the suitability of the TEIQue-SF for the accurate cross-cultural assessment of trait EI in mental health settings. It also highlights the importance of incorporating trait EI into extant psychotherapeutic frameworks to enhance non-pharmacological treatment efficacy. (shrink)