El artículo analiza el desarrollo de la interseccionalidad como concepto presente en el proceso de juzgar con perspectiva de género, en particular, su impacto en la jurisprudencia de la Corte Interamericana de Derechos Humanos (Corte IDH). La metodología utilizada es cualitativa, principalmente, revisión de sentencias de la Corte IDH. De las 13 sentencias seleccionadas en el período 2015-2022 se concluye que la Corte IDH ha incorporado progresivamente la perspectiva interseccional y la ha usada como categoría analítica para estudiar, entender y (...) hacer frente a las discriminaciones que constituyen una forma agravada de discriminación y barreras de acceso a la justicia. (shrink)

RESUMEN Introducción: Son escasos los servicios en salud mental dentro del contexto escolar que permitan una integración intersectorial para superar la brecha de falta de asistencia en salud mental en la población infanto - juvenil, aun cuando, es en la escuela donde se detectan mayoritariamente los problemas de salud mental. Objetivo: Comentar el uso de servicios de salud mental en el ambiente escolar en relación con los trastornos mentales y trastornos subumbrales. Método: El presente resultado se obtiene a partir del (...) “Estudio de Prevalencia Comunitaria de Trastornos Psiquiátricos y Utilización de Servicios de la Población Infanto-Juvenil Chilena”. La muestra estuvo representada por sujetos entre 4 y 18 años. La información sobre el uso de servicio de salud mental se recogió con una versión modificada de la Escala Service Assesment for Children and Adolescent. Se realizó un modelo de regresión logística para analizar cinco áreas del uso de servicios en el ambiente escolar, las cuales se correlacionaron con diagnósticos de trastorno mentales y trastorno subumbral de ansiedad, disruptivo y depresión en el último año. Resultados: Las escuelas se enfrentan a grandes desafíos sobre cómo proporcionar apoyo efectivo de salud mental para los estudiantes, que presentan algún tipo de trastorno mental o trastorno subumbral. Discussión: Las instituciones educativas requieren ser visualizadas como una entidad que podría satisfacer las necesidades que se advierten de manera urgente en atención, prevención y promoción de problemas mentales en la población infanto- juvenil, si se vinculan de forma más directa con los servicios de salud mental. ABSTRACT Introduction: Mental health services are scarce within the school context that allow intersectoral integration to overcome the gap in mental health care in the child and adolescent population, being the school where mental health problems are mostly detected. Objective: to know the use of mental health services in the school environment in relation to mental disorders and subthreshold disorders. Method: The present secondary study is carried out from the "Study of Community Prevalence of Psychiatric Disorders and Utilization of Services of the Chilean Child-Youth Population". The sample was represented by subjects between 4 and 18 years old. Information on the use of mental health service was collected with a modified version of the Service Assessment Scale for Children and Adolescents. A logistic regression model was performed to analyze five areas of the use of services in the school environment, which were correlated with diagnoses of mental disorders and subthreshold anxiety, disruptive and depression disorder in the last year. Results: Schools face great challenges on how to provide effective mental health support for students, who present some type of mental disorder or subthreshold disorder. Discusion: Educational institutions need to be visualized as an entity that could meet the needs that are urgently noticed in attention, prevention and promotion of mental problems in the child and adolescent population, if it is linked more directly with health services. (shrink)

Objective: The aim of this research was to study the mediation of body dissatisfaction, physical self-concept, and body mass index (BMI) on the relationship between physical activity and self-concept in adolescents. Materials and Methods: A sample of 652 Spanish students between 12 and 17 years participated in a cross-sectional study. Physical self-concept and general self-concept were assessed with the Physical Self-Concept Questionnaire (CAF), body dissatisfaction with the Body Shape Questionnaire (BSQ), and physical activity was estimated with the International Physical Activity (...) Questionnaire (IPAQ-SF). BMI was utilized as a measurement of body composition. Structural equation modeling was used to assess the results. Results: The resulting models showed good fit indexes. Physical activity had a positive and indirect effect on self-concept (β = 0.29, p < 0.01) and direct effects on dissatisfaction (β = -0.26, p < 0.01) and physical self-concept (β = 0.20, p < 0.01). BMI had a direct effect on dissatisfaction (β = 0.31, p < 0.01) and on physical self-concept (β = -0.10, p < 0.01) and an indirect effect on general self-concept (β = -0.24, p < 0.01). However, it was only associated with physical activity in males, playing a mediating role between physical activity and body dissatisfaction. Conclusion: Physical activity can help individuals to achieve a positive self-concept and promote psychological well-being in adolescents through the improvement of physical perceptions and body satisfaction. The importance of BMI, body dissatisfaction, and physical self-concept on the configuration of the self-concept are also emphasized. Educational policymakers and Physical Education teachers should implement strategies to promote physical activity in the schools and provide a Quality Physical Education programs to increase physical activity during adolescence. (shrink)

Modalities of Evil during National Socialism Resumen: Considerando que los diversos actos y atrocidades perpetrados por el nacionalsocialismo no pueden reducirse a una única teoría, a una única causa o a una única raíz, el presente artículo se propone analizar las diferentes expresiones que el mal adoptó durante el III Reich. Para ello, analizaremos los términos arendtianos de “banalidad del mal” y “mal radical”; presentaremos nuestra propuesta de lo que hemos denominado “espontaneidad del mal”; expondremos el mal que se veían (...) obligados a realizar los prisioneros de los campos de concentración; y, finalmente, atenderemos tanto a la complicidad activa como pasiva por parte del pueblo alemán. Palabras clave: banalidad del mal, complicidad, espontaneidad del mal, mal concentracionario, mal radical.: Considering that several acts and atrocities perpetrated by National Socialism cannot be reduced to a singular theory, to a singular cause nor to a singular root, the purpose of this essay is to analyze the different expressions that evil adopted in the Third Reich. In order to do that, we will analyse the Arendtian terms “banality of evil” and “radical evil”; we will introduce the term “spontaneity of evil”; we will show the evil that prisoners of concentration camps were forced to perform; and, finally, we will pay as much attention to active as to passive collusion carried out by German people. Keywords: banality of evil, collusion, spontaneity of evil, concentracionary evil, radical evil. (shrink)

El objetivo de este estudio fue determinar si las características de estratega son adquiridas al realizar un posgrado, la población de interés fueron estudiantes de maestría en finanzas, la muestra fue de 87 alumnos en grupos trimestrales durante dos años consecutivos.Usando metodología de enfoque mixto, un cuestionario y para complementar el aspecto cualitativo, se hizo una inferencia en cada resultado.Las hipótesis “Existe un sinnúmero de características que el estudiante universitario debe desarrollar y el estudiante universitario adquiere 80% de las características (...) de estratega en la Universidad”. Son aceptadas, el 89% adquiere las características en la Universidad. (shrink)

El artículo analiza el caso de científicas negras en universidades colombianas, desde dos cuestiones fundamentales: El lugar que ocupan dichas mujeres dentro del campo científico, tomando en cuenta tanto los sistemas de medición oficiales como las asignaciones que ellas mismas, de modo reflexivo, otorgan a su papel dentro del sistema. Y segundo, analiza cómo a partir de prácticas comunicativas concretas, que asumimos como constitutivas del quehacer científico, estas mujeres se contactan con aquellos que están fuera del campo científico y se (...) constituyen como públicos no expertos. Nuestro análisis parte de la idea de que estas prácticas comunicativas construyen tecnologías del contacto, que pueden comprenderse desde un ethos del cuidado que aboga por un sentido de reparación y repolitización de la producción de conocimiento científico. (shrink)

Los orígenes de la institucionalidad sanitaria en Chile y los intensos debates que se dieron al interior del gremio médico, constituyen el núcleo central del texto de Carlos Molina. El autor nos ofrece un análisis crítico sobre las contradicciones de una profesión a la que comenzaba a cuestionarse el papel social en una época de profundos cambios sociales y debacle económica. Los médicos, como una élite profesional e intelectual, no pudieron mantenerse al margen de las luchas políticas, y debieron ofrecer (...) respuestas frente a la crisis social. El origen de la visión técnico-sanitaria funcional, que culmina con la formación del SNS(1952), y que perdura hasta 1973, es el fruto de este intenso período de agitación gremial. (shrink)

Afirma el autor que la creación del Servicio Nacional de Salud, en 1952, fue un trascendental proyecto fundacional de una nueva institucionalidad sanitaria en Chile, cuyos orígenes formales parecen remontarse a la década precedente, y cuyo proyecto original fue presentado por el Ministro de Salubridad Salvador Allende diez años antes. Argumenta con esto que la década de los cincuenta expresa la culminación de la tolerancia del sistema político chileno a la presión y el empuje de las organizaciones populares. Aborda el (...) artículo el origen y transformaciones de las instituciones sanitarias, que recorren desde el Consejo Superior de Higiene Pública a la Dirección de Sanidad, pasando por la influencia de la beneficencia pública, y profundiza en las contradicciones del Estado Asistencial, hasta su crisis. (shrink)

In October 2019, the so-called ‘social outbreak’ took place in Chile, a major socio-political conflict that led to an unprecedented constitutional change in the country. Under this context, the feminist movement takes on a prominent role, not only because of the massiveness of its demonstrations but also because of its influence on the achievement of gender parity in the constitutional process.The experiences of the protests were captured in the countless graffiti that have propagated in urban spaces since the social outbreak (...) and which, even today, abound in certain areas. The aim of this study is to analyse the conceptual metaphors expressed in graffiti related to the Chilean protest. The methodology includes three instances of analysis: the identification of linguistic metaphors; their semantic-discursive grouping; and the conceptual analysis of the established groups, in which the ‘Basic Scene’ component is considered. As a result, the conceptual metaphor PROTEST IS WAR is proposed, which conceptualises Chileans as warriors fighting against an enemy, represented by the political institutionality, the economic model and the patriarchal system. It is concluded that the established metaphor sets out a cognitive dichotomy that highlights the opposition between the participants in the Chilean social conflict and the demonstrators’ discomfort with the current system, emphasising its commitment and unity with the reasons to protest. (shrink)

In this article, I argue that gender is a primary cultural frame for coordinating behavior and organizing social relations. I describe the implications for understanding how gender shapes social behavior and organizational structures. By my analysis, gender typically acts as a background identity that biases, in gendered directions, the performance of behaviors undertaken in the name of organizational roles and identities. I develop an account of how the background effects of the gender frame on behavior vary by the context that (...) different organizational and institutional structures set but can also infuse gendered meanings into organizational practices. Next, I apply this account to two empirical illustrations to demonstrate that we cannot understand the shape that the structure of gender inequality and gender difference takes in particular institutional or societal contexts without taking into account the background effects of the gender frame on behavior in these contexts. (shrink)

SummaryThe present analysis compares the distribution of surnames by means of spatial autocorrelation analysis in the Spain–Portugal border region. The Spanish National Institute of Statistics provides a database of surnames of residents in the western Spanish provinces of Zamora, Salamanca, Cáceres, Badajoz and Huelva. The Spanish and Portuguese patterns of surname distribution were established according to various geographic axes. The results obtained show a low diversity of surnames in this region – especially in the centre – which can be explained (...) by the absence of any major geographic barriers, with the exception of the mountain ranges between hydrographic basins, and by the presence of traditional roads that have existed since Roman times. The latter have resulted in a constant migratory flow over short–median distances, which, as can be deduced from the surnames, fits two north/south territorial axes running parallel to the border between Spain and Portugal. The distribution patterns of Portuguese and Spanish surnames differ with regard to their frequencies in the five provinces studied, which can be attributed to their respective historical, economic and social conditions. It is concluded that the border delimiting these two countries has affected the migratory flow, thereby conditioning the demographic and genetic structure of the western Spanish regions. (shrink)

La literatura de tradición folklórica cobra especial importancia dentro de la educación inicial. Por ese motivo se decidió desarrollar un proyecto de trabajo con las estudiantes del profesorado de nivel inicial para que comprendieran su importancia y que, posteriormente, pudieron aplicar una serie de conocimientos y estrategias en el aula. Se teorizó acerca de la importancia de la narración y/o lectura de diversos textos narrativos y poéticos de tradición oral de origen latinoamericano para que de esa forma pudieran ingresar en (...) las diversas culturas que hoy coexisten en muchos de los jardines de Buenos Aires como producto a la inmigración. (shrink)

1. Properties of mirror neurons in monkeys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (...) . . . 000 1.1. Action types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 000 1.2. Context effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 000 2. Is there a human ‘mirror neuron system’? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 000 2.1. Monkeys versus humans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 000 2.2. Action understanding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 000 3. The development of mirroring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 000 3.1. Imitation in newborns? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 000 3.2. Effects of experience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 000 3.3. Effects of sensorimotor experience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. (shrink)

Here, we deal with the question of under which circumstances can scientists achieve a legitimate understanding of defective theories qua defective. We claim that scientists understand a theory if they can recognize the theory’s underlying inference pattern(s) and if they can reconstruct and explain what is going on in specific cases of defective theories as well as consider what the theory would do if non-defective –even before finding ways of fixing it. Furthermore, we discuss the implications of this approach to (...) understanding the meta-metaphysics of Quantum Mechanics, specifically with regard to Quasi-set theory. We illustrate this by employing Quasi-set theory to structure a defective scientific theory and make possible the understanding of the theory. (shrink)

Here, we deal with the question of under which circumstances can scientists achieve a legitimate understanding of defective theories qua defective. We claim that scientists understand a theory if they can recognize the theory’s underlying inference pattern(s) and if they can reconstruct and explain what is going on in specific cases of defective theories as well as consider what the theory would do if non-defective—even before finding ways of fixing it. Furthermore, we discuss the implications of this approach to understanding (...) the meta-metaphysics of Quantum Mechanics, specifically with regard to Quasi-set theory. We illustrate this by employing Quasi-set theory to structure a defective scientific theory and make possible the understanding of the theory. (shrink)

Background The ambulance service provides emergency care to meet the patient’s medical and nursing needs. Based on professional nursing values, this should be done within a caring relationship with a holistic approach as the opposite would risk suffering related to disengagement from the patient’s emotional and existential needs. However, knowledge is sparse on how ambulance personnel can meet caring needs and avoid suffering, particularly in conjunction with urgent and emergency situations. Aim The aim of the study was to explore ambulance (...) nurses’ experiences of relationships with patients in urgent and emergency situations. Methods Data collection was performed using individual open-ended interviews with six ambulance nurses. The data were analyzed using a thematic analysis. Results Relationships with patients during urgent and emergency assignments emerged as three themes: “ Ambiguous silence,” “ Professional competence” and “ Challenging inadequacy” comprising eight sub-themes in total. The result shows that the ambulance nurses found it difficult to prioritize between medical care and establishing a caring relationship with the patient. However, sometimes a wordless relationship was perceived sufficient and considered a first step towards a verbal relationship. Conclusions Ambulance nurses experience that a caring relationship cannot and does not need to be prioritized in the acute stage. This uncovers a dichotomy approach to medical care versus caring relationships that exclude a holistic approach. Thus, patients’ emotional, existential and physical needs are not considered as equally important. Clinical relevance: It is important to stimulate reflection on core ethical nursing values, in training and simulation exercises among clinically active ambulance nurses. (shrink)

Intersubjectivity impairment has been considered the main pathogenic nucleus of schizophrenia. Enriching this concept with references to Scheler’s phenomenology, our hypothesis is that schizophrenic subjects are affected by a deeper impairment: the inability to resonate with unipathic affectivity. Fragmentation of the Leibschema, valueception impairment, and the lack of vital impulse are, in our hypothesis, the original alterations of the schizophrenic bodily experience from which all relational impairments originate. Our proposal is, therefore, to enhance a psychotherapy that does not only focus (...) on the verbal level, but endeavors to touch the patient’s Leib, focusing on emotional sharing and on the development of a sense of cohesion of one’s body as the starting point for accessing intersubjectivity. (shrink)

Cognitive gadgets are distinctively human cognitive mechanisms – such as imitation, mind reading, and language – that have been shaped by cultural rather than genetic evolution. New gadgets emerge, not by genetic mutation, but by innovations in cognitive development; they are specialised cognitive mechanisms built by general cognitive mechanisms using information from the sociocultural environment. Innovations are passed on to subsequent generations, not by DNA replication, but through social learning: People with new cognitive mechanisms pass them on to others through (...) social interaction. Some of the new mechanisms, like literacy, have spread through human populations, while others have died out, because the holders had more students, not just more babies. The cognitive gadgets hypothesis is developed through four case studies, drawing on evidence from comparative and developmental psychology, experimental psychology, and cognitive neuroscience. The framework employed – cultural evolutionary psychology, a descendant of evolutionary psychology and cultural evolutionary theory – addresses parallel issues across the cognitive and behavioural sciences. In common with evolutionary developmental biology and the extended evolutionary synthesis, cultural evolutionary psychology underlines the importance of developmental processes and environmental factors in the emergence of human cognition. In common with computational approaches, it emphasises the power of general-purpose mechanisms of learning. Cultural evolutionary psychology, however, also challenges use of the behavioural gambit in economics and behavioural ecology, and rejects the view that human minds are composed of “innate modules” or “cognitive instincts.”. (shrink)

El trabajo se propone evaluar en qué sentido la concepción que la Estoa antigua ha sostenido sobre lo corpóreo no privilegia la dimensión espacial. Es decir, analizaremos el argumento estoico según el cual el lugar o la extensión de un cuerpo no se determina por su posición respecto de otro cuerpo, sino por su actividad o fuerza; más específicamente, por su tensión interna. Por tanto, será nuestro objetivo inicial analizar cuáles son los fundamentos que permitirían dar cuenta de la concepción (...) estoica de lo corpóreo desde un principio biológico y no desde un modelo matemático. Luego, en una segunda instancia, evaluaremos la definición en cuestión en sus articulaciones con la teoría de la causalidad y el determinismo. (shrink)

This book investigates Hegel’s interpretation of the mystical philosophy of Jakob Böhme, considered in the context of the reception of Böhme in the 18th and 19th centuries, and of Hegel’s own understanding of mysticism as a philosophical approach. The three sections of this book present: the historical background of Hegel’s encounter with Böhme’s writings; the development of two different conceptions of mysticism in Hegel’s work; and finally Hegel’s approach to Böhme’s philosophy, discussing in detail the references to Böhme both in (...) published writings and manuscripts. According to Hegel, Böhme is “the first German philosopher”. The reason for placing Böhme at the very beginning of German philosophy is that Hegel considers him to be a profound thinker, despite his rudimentary education. Hegel’s fascination with Böhme mainly concerns the mystic’s understanding of the symbiotic relation between God and his opposite, the Devil: he considers this to be the true speculative core of Böhme’s thought. By interpreting Böhme, Hegel intends to free the speculative content of his thought from the limitations of the inadequate, barbarous form in which the mystic expressed it, and also to liberate Böhme from the prejudices surrounding his writings, placing him firmly in the territory of philosophy and detaching him from the obscurity of esotericism. Combining historical reconstructions and philosophical argumentation, this book guides the reader through an important phase in German philosophy, and ultimately into an inquiry about the relationship between mysticism and philosophy itself. (shrink)

The procedures for structuring clinical ethics case reflections in a childhood cancer care setting are presented, including an eight-step model. Four notable characteristics of the procedures are: members of the inter-professional health care team, not external experts, taking a leading role in the reflections; patients or relatives not being directly involved; the model explicitly addressing values and moral principles instead of focussing exclusively on the interests of involved parties; using a case-based rather than principle-based method. By discusing the advantages and (...) disadvantages of the proposed procedures, our paper aims to contribute to the literature on models and procedures for ethical analysis that can be used in clinical settings. It is suggested that our proposed procedures have some advantageous features when it comes to promoting health care staff’s learning to structure their thinking about ethical issues. (shrink)

This article describes Cosa Nostra bosses’ psychological characteristics starting from research data collected over almost twenty years. Through the use of fragments of interviews to justice collaborators and their wives, children, and sisters-in-law, we analyze the boss’ role and relational context. This article also reports the results of a recent research on the relationship between boss and white-collar workers, carried out through the analysis of environmental tapping recorded at a famous Sicilian Mafia boss’ house: Giuseppe Guttadauro. This research highlights the (...) psychological diversity the relationship between boss and white-collar worker is based on. The analysis of environmental tapping transcriptions has also allowed discovery of the main relational modalities used by the boss and white-collar worker in their conversations. (shrink)

El artículo aborda el concepto de subjetivación como otro modo de resistencia al poder desde el pensamiento de Michel Foucault. Para esto instala el problema en las dimensiones del saber/poder y su funcionamiento en los dispositivos concretos, y como éstos remiten a un diagrama de fuerzas puras. Teniendo en consideración estos antecedentes, el texto intenta desplazar la resistencia hacia otro lugar, el que va más allá de la clásica relación poder/contrapoder; es en este sentido que la resistencia aparece como un (...) pliegue de la fuerza que encuentra en la subjetivación una efectuación que disloca la visión común de este concepto. Palabras clave: Resistencia - Subjetivación - Diagrama - Dispositivos. (shrink)

Dennett, a philosopher, and Griffin, an ethologist, have recently presented influential arguments promoting the extended use of intentional language by students of animal behavior. This essay seeks to elucidate and to contrast the claims made by each of these authors, and to evaluate their proposals primarily from the perspective of a practicing comparative psychologist or ethologist. While Griffin regards intentional terms as explanatory, Dennett assigns them a descriptive function; the issue of animal consciousness is central to Griffin's program and only (...) tangentially related to Dennett's. The philosopher's arguments are founded upon a more coherent metaphysics, but Dennett neglects to substantiate his claim that animal competences can be most readily modelled by artificial intelligence specialists when they are described in intentional terms. Both authors assume that some examples of animal behavior should not be given an intentional characterization, but neither provides adequate guidelines for the identification of cases belonging to this negative set. (shrink)

The Protein Ontology provides terms for and supports annotation of species-specific protein complexes in an ontology framework that relates them both to their components and to species-independent families of complexes. Comprehensive curation of experimentally known forms and annotations thereof is expected to expose discrepancies, differences, and gaps in our knowledge. We have annotated the early events of innate immune signaling mediated by Toll-Like Receptor 3 and 4 complexes in human, mouse, and chicken. The resulting ontology and annotation data set has (...) allowed us to identify species-specific gaps in experimental data and possible functional differences between species, and to employ inferred structural and functional relationships to suggest plausible resolutions of these discrepancies and gaps. (shrink)

What is the relationship between imitation and culture? This article charts how definitions of imitation have changed in the last century, distinguishes three senses of “culture” used by contemporary evolutionists (Culture1–Culture3), and summarises current disagreement about the relationship between imitation and culture. The disagreement arises from ambiguities in the distinction between imitation and emulation, and confusion between two explanatory projects—the anthropocentric project and the cultural selection project. I argue that imitation gives cultural evolution an inheritance mechanism for communicative and gestural (...) skills (but not technological skills), and cultural selection yields the cognitive mechanisms that make imitation possible. (shrink)

Wolfgang Pauli referred to him as 'my discovery,' Robert Oppenheimer described him as 'one of the most gifted theorists' and Niels Bohr found him enormously stimulating. Who was the man in question, Gunnar Källén (1926-1968)? His appearance in the physics sky was like a shooting star. His contributions to the scientific debate caused excitement among young and old. Similar to his friend and mentor, Wolfgang Pauli, he demanded honesty and rigor in physics - a distinct dividing line between fact and (...) speculation. In his obituary, Arthur S. Wightman would write: 'Gunnar Källén was a proud continuer of the tradition in quantum field theory established by Wolfgang Pauli. His papers on quantum electrodynamics in the period 1950-1954 carried the non-perturbative approach to quantum electrodynamics forward to a point beyond which very little essential progress has been made up to the present day. At the time I was trying to puzzle out the grammar of the language of quantum field theory, and here was Källén already writing poetry in the language!'. In addition to being a remarkable scientist, Källén had a very interesting personality, well worth exploring. In her book, physicist Cecilia Jarlskog traces both the personal and scientific trajectory of this unsung hero of the early days of high-energy physics and quantum field theory. A number of invited contributions by members of the Källén family and distinguished researchers from the field, all of them personally acquainted with Källén, combine to form an authentic portrait of the researcher and the man. Last but not least, the reader will become acquainted with some aspects of the history of particle physics in those days, as related by Källén and those who corresponded with him. A commented selection of his most important and not easily accessible papers is included as an added bonus for specialists. (shrink)