In this article, we will concentrate on the two true norm definitions that have existed throughout the history of the Deontic Logic: that offered by Professor Kalinowski and that proposed by the semantics of possible worlds. The former is based on Tarski’s definition of the true proposition, but it has the drawback of depending on a concrete, philosophical theory concerning the nature of norms. The latter, widely accepted nowadays, presents difficulties which we will analyse, using as a reference, K. Solt’s (...) critique. Despite its limitations, it offers the indisputable advantage of being independant of any concrete, philosophical option, and indicates, in our opinion, the correct way of proceeding. (shrink)

In this article, we will concentrate on the two true norm definitions that have existed throughout the history of the Deontic Logic: that offered by Professor Kalinowski and that proposed by the semantics of possible worlds. The former is based on Tarski’s definition of the true proposition, but it has the drawback of depending on a concrete, philosophical theory concerning the nature of norms. The latter, widely accepted nowadays, presents difficulties which we will analyse, using as a reference, K. Solt’s (...) critique. Despite its limitations, it offers the indisputable advantage of being independant of any concrete, philosophical option, and indicates, in our opinion, the correct way of proceeding. (shrink)

On a Dreyfusian account performers choke when they reflect upon and interfere with established routines of purely embodied expertise. This basic explanation of choking remains popular even today and apparently enjoys empirical support. Its driving insight can be understood through the lens of diverse philosophical visions of the embodied basis of expertise. These range from accounts of embodied cognition that are ultra conservative with respect to representational theories of cognition to those that are more radically embodied. This paper provides an (...) account of the acquisition of embodied expertise, and explanation of the choking effect, from the most radically enactive, embodied perspective, spelling out some of its practical implications and addressing some possible philosophical challenges. Specifically, we propose: an explanation of how skills can be acquired on the basis of ecological dynamics; and a non-linear pedagogy that takes into account how contentful representations might scaffold skill acquisition from a radically enactive perspective. (shrink)

A new approach to landscape ecology involves the application of the eco-field hypothesis and the General Theory of Resources. In this study, we describe the putative eco-field of bark beetles as a spatial configuration with a specific meaning-carrier for every organism-resource interaction. Bark beetles are insects with key roles in matter and energy cycles in coniferous forests, which cause significant changes to forestry landscapes when outbreaks occur. Bark beetles are guided towards host trees by the recognition of semiotic signals using (...) a specific eco-field. These signals mainly comprise a group of scents, which are called the odourtope. Their interactions with other organisms occur by sharing relevant information from the eco-field networks in the forest ecosystem. The eco-field networks modulate the expansion of the realized semiotic niche of the bark beetle towards the potential semiotic niche. Moreover, the niche construction process can be initiated by interchanging signals among species living in the same place, where these signals allow the exploitation of the required resources. If different organisms are interdependent on signals in eco-field networks, then this process may result in the establishment of mutualistic relationships. This is an example of how evolutionary processes are initiated by the recognition of signals in a network of eco-fields. (shrink)

This article states that research in skill acquisitionand executionhas underestimated the relevance of some features of attention. We present and theoretically discuss two essential features of attention that have been systematically overlooked in the research of skill acquisitionandexecution. First, attention alters the appearance of the perceived stimuli in an essential way; and second, attention plays a fundamental role in action, being crucial for solving the so called ’many-many problem’, that is to say, the problem of generating a coherent behavior byselecting (...) between many inputs and many potential outputs. We discuss the importance of these features for skill acquisition in sport. We also suggest empirical ways to assess the precise impact of taking them into consideration and at the same time we propose important implications for training derived from the ideas discussed in the paper. (shrink)

The Greek word mētis (μῆτις) traditionally refers to a particular form of wily intelligence associated with the arts of deception (dolos) and the knowledge of tricks (kerdē), subterfuges, and traps. Mētis evokes innovative and ground-breaking solutions, based on the capability to understand, anticipate, and possibly violate the others’ expectations. Most importantly, mētis presupposes practical wisdom, or prudence (phrόnesis), a dispositional quality that underpins all the virtues that deserve to be cultivated by sportspersons and that is pivotal to perfect sportspersons’ moral (...) character. Not only is prudence required to apply mētis profitably for winning a game, but it is also indispensable to perform consistently with the game’s norms—cognizant of sport values. This analysis of mētis is key to illuminate the embodied dimension of tactical and moral reasoning in contemporary sport practice. In this paper, we first argue that the strategic effectiveness of mētis proves that not only sensorimotor control but also higher forms of intelligence, like strategic reasoning, are embodied and inform skilful performance; second, we argue that relying on mētis is necessary not only to interpret the rules of the game in one’s own favor but also to respect the shared values that these rules uphold in the sport practice. (shrink)

Membership in voluntary organizations is associated with individual and social benefits. Due to the negative consequences of the global pandemic on older people, and the governmental challenges posed by population aging, voluntary membership is of great importance to society. To effectively promote volunteering among older people, it is necessary to understand the determinants of voluntary membership. This study analyses the influence of individual values—secular/traditional and survival/self-expression–on voluntary membership among European adults. Specifically, it examines which values orient two age groups, as (...) well as men and women toward a certain type of association. The sample of 31,985 comprises 60% of adults aged 50–64 and 40% aged 65–79; of which 56% are women and 44% men. The empirical estimation considers different levels of data aggregation: individual, national and welfare system, therefore multilevel analysis is used as an analytical strategy. Individual-level variables from the Integrated Values Survey and national-level variables from the World Bank and Eurostat are used. The results indicate that traditional and self-expression values promote membership in voluntary organizations in general more than secular and survival values. However, there are differences according to the type of organization. Furthermore, values are found to moderate the effect of age and gender on voluntary membership. (shrink)

Este artigo apresenta um exame da crítica proposta por Morton White em seu artigo “Valor e obrigação em Dewey e Lewis”, em particular, a aquela voltada para o conceito de normatividade e valoração de C.I. Lewis. A crítica afirma que Lewis, ao oferecer um caráter normativo dos juízos éticos, malogra ao articular consistentemente a sua concepção ética com a sua teoria do conhecimento. Isso leva White a concluir que o pragmatista não possui uma solução para o problema fundamental da ética. (...) Argumentarei que tal conclusão é equivocada. O núcleo da minha argumentação repousa na tese de que a crítica de White se origina de uma interpretação incorreta do pragmatismo conceitualista de Lewis, falhando em reconhecer que o apriorismo pragmático é a chave para o entendimento adequado de teoria do conhecimento e para uma explicação da conexão e articulação entre valoração e normatividade no interior da abordagem de Lewis. Nesta linha, mostrarei que, muito pelo contrário, a epistemologia de Lewis destaca os desenvolvimentos éticos e normativos, revelando uma teoria naturalística de valoração que é a base na qual a normatividade emerge pragmaticamente. Sustentarei, também, que essa perspectiva oferece uma concepção profícua de valores e normas que não têm sido suficientemente exploradas; algo que confronta o ceticismo ético, podendo levar em conta o status cognitivo de valores e normas, e que recupera o caráter racional da valoração não apenas para a ética, mas, também, para o conhecimento e a ciência. (shrink)

In this writing it is presented Rawl’s proposal about the possibility of civil disobedience in the face of a democratic authority legitimately established. Rawlsian civil disobedience shows its antiauthoritarian claims depending on the maintenance of a fair order, and social society is the way of..

En el texto se llevan a cabo una serie de reflexiones en relación a la formación ética en las universidades para desde ahí edificar mejores ciudadanos. La relevancia de los estudios teóricos en la temática ética es crucial para apuntalar la comprensión de la ética y la ciudadanía en la vida práctica: sólo así podremos cambiar algo de este mundo. Además, la complejidad de nuestra realidad requiere de un pensar crítico para poder desbrozar tales complejidades, ayudándonos a comprender mejor nuestra (...) realidad y circunstancia. Sólo así podremos convertirnos en seres responsables de lo que nos toca hacer en nuestro mundo. La exigencia de un pensar ético crítico no puede dejarse de lado dado que será el único herramental que nos posibilite proyectarnos al futuro en la construcción de una mejor humanidad. (shrink)

En este texto se pretende mostrar la importante tarea que llevó a cabo Vico en torno a la diversidad de culturas, y la posibilidad de comprensión entre ellas, por medio del método hermenéutico que parte de la fantasía. Una apuesta por el pluralismo cultural y el entendimiento de los pueblos desde la categoría de lo (sentido) "común".

Las relaciones distinguen a las personas divinas; así pues, la inteligencia teológica de las personas está basada en la propia relación, puesto que la “veritas fidei” implica que la única distinción que hay en Dios se toma de las relaciones reales de oposición, a saber: paternidad, filiación, espiración y procesión. Hemos querido realizar un acercamiento propio a partir de las obras de santo Tomás de Aquino propuestas en el título.

A questão do relacionamento entre a normatividade e valoração e sua incorporação no discurso racional é um dos problemas mais relevantes na filosofia contemporânea e é claramente desdobrada em todas as suas complexidades no debate paradigmático mantido entre Hilary Putnam e Jürgen Habermas durante a primeira década do século XXI. A partir dessas posições que reivindicam a tradição do pragmatismo americano, os filósofos discutem a objetividade dos juízos de valor e normativos defendendo, com diferenças significativas, uma posição cognitivista. A presente (...) contribuição aborda essa discussão com o propósito de apresentar o pragmatismo conceitualista de Clarence Irving Lewis como uma alternativa e posição profícua com os recursos para interagir com algumas das principais questões discutidas por Putnam e Habermas. Meu propósito é mostrar o modo como Lewis explica o caráter cognitivo das normas e valores enquanto sustenta, simultaneamente, uma demarcação significativa entre ambos os conceitos. Argumentarei que essa distinção é pragmática – não epistêmica –, e que isso permite ao pragmatista defender um cognitivismo que pode articular um naturalismo não reducionista referente aos valores com um conceito racionalista de normas, uma posição que pode evitar algumas das objeções que enfrentam Putnam e Habermas. (shrink)

Background The birth plan is a tool that allows the self-learning and thoughtful analysis of the women during the birthing process, facilitating their making of decisions and participation, in agreement with the bioethical principles of autonomy and no malfeasance. Goal: To understand the perception and satisfaction of women who presented a birth plan. Methodology: Qualitative, descriptive, observational, retrospective and cross-sectional study. The population of the study was composed of 21 women who presented a birth plan regulated in a Hospital ever (...) since the recording of the presentation of the birth plan was started until 2015. Place: Cartagena. Techniques/methods: Semistructured interview. Results-Discussion: Most women considered the plan as a useful self-learning tool on the meaning of the birthing process, as it favored the communication between the expectant mothers/health professionals. Our informants sought information related to the birthing process from informal sources; most perceived a level of respect of their wishes during the process of giving birth. The use of the birth plan did not imply the perception of loss of the degree of control during the birth, although attention to the written document could be improved. Conclusions The use of the birth plan is a very satisfactory and useful experience for their involvement in their self-care, although in some cases, the births did not proceed according to their plans. Nevertheless, the prevalence of the principle of Non-Malfeasance over Autonomy was evidenced. (shrink)

In spite of the advances in our knowledge of cancer biology, most cancers remain not curable with present therapies. Current treatments consider cancer as resulting from uncontrolled proliferation and are non‐specific. Although they can reduce tumour burden, relapse occurs in most cases. This was long attributed to incomplete tumour elimination, but recent developments indicate that different types of cells contribute to the tumour structure, and that the tumour's cellular organization would be analogous to that of a normal tissue, with a (...) main mass of differentiating cells sensitive to anti proliferative agents, together with a small percentage of quiescent, resistant stem cells responsible for replenishing the tumour: the Cancer Stem Cells (CSCs). Anti‐CSCs targeted therapeutic agents would prevent tumour regeneration. New mouse models tailored to exploit this novel concept will be critical to develop CSC‐based anti‐cancer therapies. Here we review the biological basis and the therapeutic implications of the stem‐cell model of cancer. BioEssays 29:1269–1280, 2007. © 2007 Wiley Periodicals, Inc. (shrink)

This paper focuses on the description and analysis of three codices from Biblioteca Nacional in Madrid with the aim of redefining their origin, dating, authorship, and content. Connecting their production to the environment of the Sacromonte affair and identifying Pedro de Castro’s hand allows to expand what was known so far about his attempts to learn Arabic and delve into the most controversial aspects of the Lead Books. The grammatical and religious contents, in addition to the copious marginal notes linked (...) to the sources he used, provide valuable information on his selection of works. Grammatical materials such as al-Āŷurrūmiyya, of which different versions are preserved in these codices, were being published in Rome and Leiden and would be widely disseminated. The building up of his library, to which these codices must have belonged, runs in parallel to the construction of an orientalist knowledge in modern Europe. (shrink)

Existe gran consenso dentro de la academia en relación a la necesidad de tener en cuenta un gran número de variables para poder conceptualizar y medir la inclusión o, por ende, la exclusión social que viven ciertos colectivos. A través de un estudio en profundidad de la bibliografía, casos piloto y proyectos similares, se ha creado un sistema de indicadores con la finalidad de medir el impacto socioeconómico de una actividad sociodeportiva vinculada a la inclusión de personas con diversidad funcional. (...) El sistema resultante, se aplicarán en el caso piloto VARIED, un proyecto europeo realizado en cinco países de la propia Unión Europea. (shrink)

B‐cell acute lymphoblastic leukaemia (B‐ALL) is a clonal malignant disease originated in a single cell and characterized by the accumulation of blast cells that are phenotypically reminiscent of normal stages of B‐cell differentiation. B‐ALL origin has been a subject of continuing discussion, given the fact that human disease is diagnosed at late stages and cannot be monitored during its natural evolution from its cell of origin, although most B‐ALLs probably start off with chromosomal changes in haematopoietic stem cells. However, the (...) cells responsible for maintaining the disease appear to differ between the different types of B‐ALLs and this remains an intriguing and exciting topic of research, since these cells have been posited to be responsible for resistance to conventional therapies, recurrence and dissemination. During the last years this problem has been addressed primarily by transplantation of purified subpopulations of human B‐ALL cells into immunodeficient mice. The results from these different reconstitution experiments and their interpretations are compared in this review in the context of normal B‐cell developmental plasticity. While the results from different research groups might appear mutually exclusive, we discuss how they could be reconciled with the biology of normal B‐cells and propose research avenues for addressing these issues in the future. (shrink)

Firm managers play an important role in the implementation of corporate social responsibility (CSR) actions. Education is emerging as the key factor in developing a sense of moral responsibility amongst the business students who will eventually become company managers and decision makers. The aim of this research is, thus, twofold. First, to analyze the existence of a direct positive correlation between university students’ perception of CSR and its impact on business performance; and second, to examine the extent to which two (...) factors (advantages brought by CSR and responsibilities toward stakeholders) act as mediation variables in the aforementioned correlation. The analysis was performed with a sample of 390 business‐related university students. Amongst the potential contributions made by this study we can highlight the possibility of knowing future managers’ way of thinking and of knowing the aspects where educational centers might improve their CSR teaching. (shrink)

De manera paradójica, la actualidad de la hermenéutica debe buscarse en su diálogo con la tradición filosófica. Diálogo que daría comienzo, en primer lugar, con su recepción de Husserl, la cual no se puede entender tanto como una traición al proyecto fenomenológico cuanto como un llevarlo hasta sus últimas consecuencias. En segundo lugar, la vuelta sobre el proyecto moderno conduciría a un dialógo con Kant y a la discusión de la posición de un sujeto trascendental como condición de la objetividad. (...) Es precisamente esta idea de diálogo la que define la hermenéutica como una apertura a lo otro en tanto que otro y no como un ejercicio de asimilación. Finalmente, si esta apertura al otro no cristaliza en un proyecto ético definido es, justamente, porque trata de pensar el fundamento de lo ético. (shrink)

This article analyzes the relationship between corporate social responsibility (CSR) decoupling and financial market outcomes. CSR decoupling refers to the gap between CSR disclosure and CSR performance. More specifically, we analyze the effect of CSR decoupling on analysts’ forecast errors, cost of capital, and access to finance. We also examine the moderating effect of forecast errors on relationships between CSR decoupling and cost of capital and access to finance. For a sample of U.S. firms consisting of 7,681 firm-year observations for (...) the period 2006–2015, our empirical evidence supports the idea that a wider gap results in higher analysts’ forecast errors, a greater cost of capital, and reduced access to finance. In addition, our results show that forecast errors enhance the effect of the CSR decoupling on cost of capital and access to financial resources. We also note that external monitoring, in the form of greater analysts’ coverage, reduces CSR decoupling. (shrink)

The impact of digital devices and the Internet has generated various changes at social, political, and economic levels, the repercussion of which is a great challenge characterized by the changing and globalized nature of today's society. This demands the development of new skills and new learning models in relation to information and communication technologies. Universities must respond to these social demands in the training of their future professionals. This paper aims to analyze the empirical evidence provided by international studies in (...) the last eleven years, related to the digital literacy of university students, including those pursuing degrees related to the field of education. Our findings highlight the fact that the digital literacy that is offered in universities to graduate/postgraduate students, in addition to treating digital literacy as a central theme, also focuses on perceived and developed self-efficacy. This is done by strengthening competencies related to digital writing and reading, the use of databases, the digital design of content and materials, and the skills to edit, publish or share them on the web, or applications aimed at treating digital literacy as emerging pedagogies and educational innovation. Secondly, we found studies related to digital competencies and use of the Internet, social networks, web 2.0, or the treatment of digital risks and their relationship with digital literacy. Thirdly, we found works that, in addition to focusing on digital literacy, also focused on different psychological constructs such as motivation, commitment, attitudes, or satisfaction.Systematic review registration:https://www.scopus.com/home.uri; https://www.recursoscientificos.fecyt.es/. (shrink)

: In recent years, research on the family role and entrepreneurship has increased extremely, consolidating itself as a valid and current subject of study. However, a part of the scientific literature seems to lack systematization and the boundaries appear unclear, maybe due to its multidisciplinary nature. This paper presents a systematic analysis of academic research, applying bibliometric indicators and cluster analysis, which define the state of research on the international scene. For this purpose, using three well accepted databases among the (...) research community: Scopus, Web of Science, Business Source, a total of 92 articles were selected and analyzed, published between 1989 and 2019 (until March). The results show that this is a relatively recent field of study, with a multidisciplinary character and in which the most influential authors do not coincide with the most productive scientific journals. A cluster analysis finds out five main areas of literature development: the cluster with the largest percentage of co-occurrences (25%) is the one that relates to the dimensions of entrepreneurship, self-employment and personality; in contrast, the area with a lower percentage of co-occurrences of keywords (12,1%) is refers to family business, succession, economic development and Arabia Saudita. Based on the outcome obtained and the shortcomings above, in the final part of the article, possible points of reflection for future research are exposed, which could be useful to further of this field of study. (shrink)

Universities increasingly play an important role in entrepreneurship, which has contributed to gender equality in the business world. The aim of this study is to establish a causal model of entrepreneurial intentions and explore it by gender, based on the dimensions of the Theory of Planned Behavior, and how these are mediated by the individuals’ resilience and psychological well-being. The previous work experience was considered as one of the control variables, in order to analyze whether this influence the entrepreneurial intention. (...) With a convenience sample of 644 Portuguese students, Structural Equation Modeling was used. For a better understanding, multivariate analyses were performed and each one was individually reported, and for appropriate comparisons by gender, the t-student test was used. The comparison of means, between genders, showed that there are differences only between perceived behavioral control, subjective norm, and entrepreneurial intention, with women scoring the highest values, and psychological well-being, with men scoring the higher. A serial mediation path was performed, and psychological resilience was found to mediate a significant effect between perceived behavioral control and intention in females, but not in males. It also mediates a significant effect between attitude and intention in females, but not in males. These results show that attitude is a determining factor for females to become entrepreneurs. Finally, after discussing the results, theoretical and practical contributions are analyzed, with regard to the field of entrepreneurship in Portugal, and alternatives are pointed out for a more entrepreneurial future, reinforcing the role of higher education institutions. (shrink)

We highlight how Corporate Social Responsibility can be strategically used against the negative perception from earnings management. Using international data, we analyse the effect of CSR and EM on the cost of capital and corporate reputation. Results confirm that CSR strategy is positively valued by investors and other stakeholders. Contrary to EM, CSR has a positive effect on corporate reputation and lowers the cost of capital. In addition, we also find that the favourable effect of CSR on cost of capital (...) is consistently more intense in firms that show signs of EM indicating that the market does not identify when CSR practices are used as a strategy to mask EM. We also demonstrate how institutional factors influence the above relationship. (shrink)

Social entrepreneurship (SE) enables business consolidation, combined with the production of positive impact and improvements in society. Aligned with 2030 Agenda for the achievement of the United Nations Sustainable Development Goals, it is important to clarify the role of social entrepreneurs, as they are making visible the impact of their creative ideas in several areas, from civic engagement to the environment, health and learning. The main purpose of this study is to specify a model of social entrepreneurial intention (SEI) and (...) explore it by country, based on the dimensions of the Theory of Planned Behavior and how these are mediated by spirituality and optimism. With a convenience sample of 1476 Portuguese and Spanish students, Structural Equation Modeling (SEM) was used. For a deeply understanding, variables within the model were compared by country usingt-rest, and multivariate analysis was done by each one separately. The mean comparison between countries, demonstrated that there are differences only between perceived behavioral control (PBC), Spirituality, Optimism and SEI, with Portuguese students scoring the highest values, in all variables except Optimism. A mediation path was carried out, and Spirituality mediate a significant effect between the three TPB dimensions in Portuguese students, but not in students from Spain. Finally, after discussing the results, theoretical and practical contributions are analyzed, with regard to the field of SE in Portugal and Spain, and alternatives are pointed out for a more social and sustainable entrepreneurial future. (shrink)

The acceptance or rejection of classmates is one of the most widely recognized determinants of wellbeing in childhood. This study analyses psychosocial adjustment and sociometric status in primary education pupils, and possible differences by gender. A cross-sectional survey was undertaken in Huelva. The surveyed schools were selected using a stratified random sampling technique with both public and private elementary schools. Sample was composed of 247 4th grade students. Data revealed gender differences in psychosocial adjustment, particularly in terms of prosocial behavior (...) in girls and behavioral problems in boys. Popular and rejected statuses presented opposing adjustment profiles, particularly in hyperactive symptoms and behavioral problems. When the sample was separated by gender, the differences between the types of status in emotional symptomatology and prosocial behavior disappeared. In addition, the differences between statuses were greater in boys, and were defined mainly by hyperactivity, whilst for girls these differences were more apparent in behavioral problems. (shrink)

In recent years, the study of women entrepreneurship has experienced great growth, gaining a broad consensus among academics and contributing above all to understanding all those factors that explain the difficulty of women in undertaking an entrepreneurial career. This document tries to contribute to the field of study, thanks to a systematic analysis through the publications present in the topic. For this purpose, 2,848 peer-reviewed articles were analyzed, published between 1950 and 2019, using the Scopus database (SCImago Research Group). Through (...) the use of a series of bibliometric indicators it was possible to define the current state of research on the international scene. The analysis revealed that it is a multidisciplinary field of study and that has started to expand further since 2006, culminating in 2019, which makes it become a current and valid object of study. The analysis of the clusters allowed to isolate 6 different lines of research in which emerged, on the one hand, the importance of entrepreneurial education, social entrepreneurship and the socio-cultural context of reference (e.g. culture, family and institutional support) as tools to overcome the gender gap, on the other, the importance that women entrepreneurship assumes in the economic growth of the country (especially in developing economies), promoting social inclusion and combating poverty and discrimination. The study presents an important contribution to reflect on current policies and to outline future lines of investigation. (shrink)

SummaryThis article presents the development and current situation of the sociology of sport in Spain. It begins with a brief description of its origins and development as an academic field, which can be divided into three stages: birth, growth, and consolidation and internationalization. It then describes the theoretical and methodological traditions as well as the predominant topics (including the most representative research) in the social scientific studies on physical activity conducted so far in Spain. The main topics have been sports (...) in society, sports controversies, the social sports structure, sports identities and spaces for practicing sports, organization, management, and the job market. The article concludes with an analysis of the possible future challenges for the sociology of sport in Spain and the role that the journal Sociología del Deporte (Sociology of Sport) can play in view of these challenges. (shrink)

The theory of separation assumes, with provocation, that an organization cannot reconcile profits and social function. Organizations can reconcile these two, apparently contrasting, missions, by considering emotions, especially moral emotions, to create a genuine motivation for focusing on goals beyond simple economic earnings and protecting organizations or groups of people from dysfunctional attitudes and behaviors, as well as considering the important role of the stakeholder accountability. Using the PRISMA method, we created a review of records using keywords relating to a (...) socio-emotional value within organizations, with a particular focus on the last 20 years. We used the SCOPUS database and, after removing irrelevant records, we used the VOSviewer tool to create a cluster map of different areas in this topic. Some records cite the socio-emotional value that is related to organizational and employee suffering, while other articles consider it a positive factor that improves performance and prevents problems in organizations. (shrink)

Histamine is a multifunctional biogenic amine with relevant roles in intercellular communication, inflammatory processes and highly prevalent pathologies. Histamine biosynthesis depends on a single decarboxylation step, carried out by a PLP-dependent histidine decarboxylase activity (EC 4.1.1.22), an enzyme that still remains to be fully characterized. Nevertheless, during the last few years, important advances have been made in this field, including the generation and validation of the first three-dimensional model of the enzyme, which allows us to revisit previous results and conclusions. (...) This essay provides a comprehensive review of the current knowledge of the structural and functional characteristics of mammalian histidine decarboxylase. BioEssays 27:57–63, 2005. © 2004 Wiley Periodicals, Inc. (shrink)

Resumen En este artículo se propone una reflexión sobre los requerimientos -éticos y teóricos- para la factible superación de situaciones violentas. Situaciones en las que la realidad se impone de manera indefectible y agresiva, bajo las que difícilmente se pueden generar espacios de justicia, dado que en ellos prevalece la desigualdad y marginación social. La persistencia de injusticias constituye el caldo de cultivo para la violencia. El caso específico de este tipo de circunstancias es la matanza de 43 estudiantes de (...) la Escuela Normal Rural en Ayotzinapa el 26 de noviembre de 2014. En estos contextos, para formular alternativas en que la paz sea un horizonte viable, se parte de la reflexión sobre la injusticia real, principalmente, desde la teoría de Luis Villoro. A partir del reconocimiento de esta condición se posibilita la imaginación colectiva de alternativas en pro de la superación de la violencia y el alcance de la paz.This article proposes to reconsider the feasibility of overcoming violent situations. Situations in which reality imposes itself in an indefectible and aggressive manner and in which it is hard to generate spaces of justice, since in them, social inequality and marginalization prevail. The persistence of injustice is the breeding ground for violence. An explicit case of such conditions was the massacre of 43 students of the Rural Teachers' College in Ayotzinapa on November 26, 2014. Under these circumstances, and, in order to formulate alternatives where peace becomes a viable horizon, this paper assumes the perspective about real injustice developed by Luis Villoro. Based on the recognition of this condition, the collective imagination of alternatives for overcoming violence and achieving peace becomes possible. (shrink)

In this article, we postulate three items that are considered fundamental for the construction of cultures of peace through a coexistence with dignity and in a fair framework. Together ethics, creativity and imagination rise to face and challenge the various situations of violence that occur in social constructs, as they are realities that involve serious opprobrium for humanity. Thinking of a more humane world will be possible only if we are in it actively from ethical postulates and through procedures that (...) demand creativity and imagination, which are crossed in various situations such as listening and dialogue, involving mutual respect. Imagining oneself in the place of others as an ethical category and articulating it with creative forms allows us to aspire to situations that are different and diverse from those we live in, in order to achieve the construction of peace. (shrink)