The most popular work of Francisco Sánchez, Quo nihil scitur (1581), transmits an absolutely sceptic thought. However, other writings like Carmen de Cometa anni M.D.LXXVII (1578), offer us different ideas about how Sánchez considers possible the scientific knowledge like, for example, his idea about the casual relations between natural objects.

Este ensayo es consecuencia de las reflexiones que desde hace años realizamos en el Instituto de Paz y Conflictos de la Universidad de Granada y que nos ha obligado a hacer una deconstrucción crítica de algunos aspectos del pensamiento pacifista. Bien es cierto que la supervivencia de la especie ha sido posible porque la respuesta a la conflictividad ha sido, mayoritariamente, la búsqueda de equilibrios dinámicos y de armonía. Pero, a pesar de todo, perviven muchas grietas, rupturas, dadas por la (...) propia contingencia y fragilidad humanas. Estamos ante unos entes humanos fragmentados, violentados, lo que hace más difícil la búsqueda de la armonía o la paz. Estas dificultades son razones de peso para trabajar en el camino de una «desfragmentación» ontológica que sea útil para liberar nuestras fuerzas emancipadoras y creativas. Construir la visión integrada y unitaria de la Ciencia de los Seres Humanos es una tarea conjunta que interesa sobremanera a la Investigación para la Paz.This essay is a consequence of the reflections we have been conducting for several years at the Instituto de Paz y Conflictos of the University of Granada. These reflections have obliged us to undertake a critical deconstruction of a few aspects of pacifist thought. Although the survival of the species has been possible because the response to conflicts has been, principally, the search for dynamic equilibrium and harmony; on the other hand there remain many fissures, ruptures brought about by the own human contingency and fragility. We find ourselves before a fragmented and distorted human being, which makes the search for harmony or peace even more difficult. These difficulties are convincing reasons for working towards an ontological “defragmentation” which is useful to liberate our emancipating and creative forces. To build the integrated and united view of Human Sciences is a collective task which is of great interest for Peace Research. (shrink)

El texto que presentamos recoge las principales conclusiones que han derivado de los estudios sobre la Colección de documentos árabes del Archivo Histórico Provincial de Granada. Compuesta principalmente por documentos de carácter jurídico, el análisis del contenido de cada uno de ellos en relación con la materialidad del soporte y las tintas así como la coincidencia en el diseño y planificación de la página revelan el uso de idénticos protocolos de ejecución. Esta investigación nos está permitiendo, además, establecer coincidencias relevantes (...) relacionadas con los procesos de elaboración del papel entre los últimos años de permanencia de los árabes en la Península Ibérica y los primeros tras la incorporación del territorio a la Corona de Castilla y, sobre todo, con el modo de ejecutar el documento de archivo en sus formas externa e interna. (shrink)

In this article, we present results from a literature review of intrinsic, instrumental, and relational values of nature conducted for the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, as part of the Methodological Assessment of the Diverse Values and Valuations of Nature. We identify the most frequently recurring meanings in the heterogeneous use of different value types and their association with worldviews and other key concepts. From frequent uses, we determine a core meaning for each value type, which is (...) sufficiently inclusive to serve as an umbrella over different understandings in the literature and specific enough to help highlight its difference from the other types of values. Finally, we discuss convergences, overlapping areas, and fuzzy boundaries between different value types to facilitate dialogue, reduce misunderstandings, and improve the methods for valuation of nature's contributions to people, including ecosystem services, to inform policy and direct future research. © 2023 The Author(s). Published by Oxford University Press on behalf of the American Institute of Biological Sciences. (shrink)

On July 18, 1988, workers at the Metropolitan YWCA Women's Services, a Chicago-area center designed to assist women and children who are survivors of violence and sexual assault, agreed to record in a journal their thoughts at a chosen hour during that day. Each section was written by a different worker. The purpose was to bring together separate voices, all connected through their common work with survivors to begin to understand the impact of this work on their own lives.

An alternative approach to analyze the nonrelativistic quantum dynamics of a rigid and extended charged particle taking into account the radiation reaction is discussed with detail. Interpretation of the field operators as annihilation and creation ones, theory of perturbations and renormalization are not used. The analysis is carried out in the Heisenberg picture with the electromagnetic field expanded in a complete orthogonal basis set of functions which allows the electromagnetic field to satisfy arbitrary boundary conditions. The corresponding coefficients are the (...) field operators which satisfy the usual commutation relations. A nonlinear equation of motion for the charged particle is obtained. A careful consideration of the quantum effects allows the derivation of a linear equation of motion which is free of both runaway solutions and preacceleration, even for a point charge. Also, the electromagnetic mass, which is defined as the coefficient of the acceleration operator, vanishes for a point particle. However, this does not mean that the results are free of ambiguities which are exhibited and discussed. (shrink)

This article focusses on corporate attitudes to stakeholder environmental pressures in Argentina. It uses a cross section survey of 505 CEOs of Argentinean firms to gather information on environmental attitudes and a stakeholder theory framework to design and interpret the statistical analyses. It is underpinned by theoretical and empirical findings in the literature on stakeholder management, targeting in particular studies that deal with corporate social responsibility (CSR) in Latin America. Its general aim is to gain a deeper empirical understanding of (...) the coherence between managers' perceptions of stakeholder pressures and the importance they are given in corporate CSR strategies through an empirical investigation of environmental management (EM) decisions. In doing so, it uncovers general differences in the way firms perceive and treat groups of stakeholders. It also detects variations across firms, observing that some are typically proactive in their response to stakeholder pressures whilst others are less responsive. Profiling the various stakeholder networks and the corporate response strategies in this way encourages the development of stakeholder-focussed policies and corporate strategies that emphasise communications, awareness and a clear sense of direction. It concludes that CSR appears to be more effective in the protection of the environment than previously reported. Although this study focusses on EM in Argentina, the findings are more generally applicable. (shrink)

Stakeholder Theory combines the pursuance of business goals and responsibility toward a firm's stakeholders. Despite the wealth of research on Stakeholder Orientation, we still have much to learn about specific measurements for several related constructs. In this study, we draw on two samples of 129 and 151 Spanish firms, respectively, to investigate CEOs' perceptions on Stakeholder Integration (SI), leading to the identification of three dimensions of the construct. In this respect, our study suggests that Knowledge of Stakeholders, Interactions between a (...) firm and its stakeholders, and the adaptation of a firm's behavior to stakeholders' demands constitute the main dimensions of SI. This construct has the potential to connect the stakeholder and strategy literatures. (shrink)

¿Estuvo la cultura de autoría impresa fuera del alcance de las mujeres antes de 1887 en Costa Rica? El propósito principal de este artículo es ofrecer una primera respuesta a dicha pregunta con base en una revisión preliminar de periódicos y revistas que permiten considerar el problema planteado desde una perspectiva más amplia.En breve, el argumento central que se va a desarrollar es que la construcción de esa autoría pasó por tres etapas: en la primera, durante las décadas de 1840 (...) y 1850, tal proceso se basó en la redacción de anuncios comerciales; en la segunda, centrada en los decenios de 1860 y 1870, predominaron los discursos de alumnas y maestras relacionados con actividades de enseñanza; y en la tercera, ubicada a partir de 1885, se dieron dos tendencias paralelas. Por un lado, algunas docentes comenzaron a dar a conocer sus producciones literarias; y por el otro, el Estado, en vísperas de la reforma educativa de 1886, implementó una política para que las educadoras oraran informes de sus actividades escolares y los enviaran a una revista especializada para ser publicados. (shrink)

In this paper the analysis of the classical dynamics of a charged particle is carried out without considering that the electromagnetic field necessarily goes to zero at infinity. A quite general non-linear equation of motion is obtained for an extended charged particle valid for any distribution of charge in the particle and for an electromagnetic field satisfying any boundary conditions. Some common approximations are analyzed with detail to determine how the usual difficulties arise.

Este artículo se centra en un aspecto comparativamente poco estudiado de la literatura sobre comunicación política en México relativo al análisis de los cambios significativos en la organización, las tácticas y las estrategias de campaña del Partido Revolucionario Institucional en elecciones presidenciales que han ocurrido durante las últimas dos décadas, y explora sus causas. El estudio muestra que la profesionalización e hibridación de las campañas del PRI no sólo dependió de cambios estructurales a gran escala en el sistema político y (...) en el sistema de medios de comunicación durante los noventas, sino también de los recursos y las características organizativas del partido. (shrink)

¿Estuvo la cultura de autoría impresa fuera del alcance de las mujeres antes de 1887 en Costa Rica? El propósito principal de este artículo es ofrecer una primera respuesta a dicha pregunta con base en una revisión preliminar de periódicos y revistas quepermiten considerar el problema planteado desde una perspectiva más amplia. En breve, el argumento central que se va a desarrollar es que la construcción de esa autoría pasó por tres etapas: en la primera, durante las décadas de 1840 (...) y 1850, tal proceso se basó en la redacción de anuncios comerciales; en la segunda, centradaen los decenios de 1860 y 1870, predominaron los discursos de alumnas y maestras relacionados con actividades de enseñanza; y en la tercera, ubicada a partir de 1885, se dieron dos tendencias paralelas. Por un lado, algunas docentes comenzaron a dar a conocer sus producciones literarias; y por el otro, el Estado, en vísperas de la reforma educativa de 1886, implementó una política para que las educadoras elaboraran informes de sus actividades escolares y los enviaran a una revista especializada para ser publicados. (shrink)

In order to understand the rise of runaway solutions in the radiation reaction problem a mechanical model is used. An alternative demonstration of Daboul’s theorem, through Hurwitz’s criterion, is given. The origin of runaway solutions in electrodynamics is discussed. They arise when the particle has a negative mechanical mass or when approximations are used in the equation of motion. In the 1-dimensional mechanical model an exact and linear equation of motion for the particle is obtained, the corresponding exact solution is (...) again runaway when the mechanical mass is negative. The exact solution is not runaway when the mechanical mass is positive. However, the use of approximations leads to an equation of motion which has runaway solutions. It is exhibited that the use of approximations in the 3-dimensional mechanical model is completely necessary because the general equation of motion for the particle is non-linear. The analysis of this case proceeds in a very similar way to the one carried out in electrodynamics. This means that the number of dimensions also plays an important role in the analysis. (shrink)

In this paper we deal with some new axiom schemes for Peano's Arithmetic that can substitute the classical induction, least-element, collection and strong collection schemes in the description of PA.

El desarrollo de la argumentación en el proceso de alfabetización académica cobra especial importancia debido a que el conocimiento académico es esencialmente argumentativo. Por esto, el objetivo de esta investigación es, por un lado, relevar, a partir del discurso de los docentes en un programa de Biología e Historia, las representaciones sociales acerca de la enseñanza-aprendizaje de la argumentación y, por otro, generar un modelo explicativo de este fenómeno. La recolección de datos se realizó por medio de entrevistas a docentes (...) de ambas disciplinas y el análisis de ellos, mediante la técnica de análisis de contenido, la que busca formular inferencias reproducibles y válidas que puedan aplicarse a un contexto determinado. The development of argumentation in the process of academic literacy is particularly important because scientific knowledge is essentially argumentative. For this reason, the purpose of this research is to elicit social representations about teaching and learning of argumentation from the discourse of teachers in a program of Biology and History, as well as to generate an explanatory model for this phenomenon. The data collection instrument used was an interview to teachers in both disciplines, and the data was analyzed using content analysis, a technique that seeks to develop replicable and valid inference that can be applied to a given context. (shrink)

This work presents a novel approach to forecast streaming big time series based on nearest similar patterns. This approach combines a clustering algorithm with a classifier and the nearest neighbours algorithm. It presents two separate stages: offline and online. The offline phase is for training and finding the best models for clustering, classification and the nearest neighbours algorithm. The online phase is to predict big time series in real time. In the offline phase, data are divided into clusters and a (...) forecasting model based on the nearest neighbours is trained for each cluster. In addition, a classifier is trained using the cluster assignments previously generated by the clustering algorithm. In the online phase, the classifier predicts the cluster label of an instance, and the proper nearest neighbours model according to the predicted cluster label is applied to obtain the final prediction using the similar patterns. The algorithm is able to be updated incrementally for online learning from data streams. Results are reported using electricity consumption with a granularity of |$10$| minutes for 4-hour-ahead forecasting and compared with well-known online benchmark learners, showing a remarkable improvement in prediction accuracy. (shrink)

The use of conventional manufacturing methods is mainly limited by the size of the production run and the geometrical complexity of the component, and as a result we are occasionally forced to use processes and tools that increase the final cost of the element being produced. Additive manufacturing techniques provide major competitive advantages due to the fact that they adapt to the geometrical complexity and customised design of the part to be manufactured. The following may also be achieved according to (...) field of application: lighter weight products, multimaterial products, ergonomic products, efficient short production runs, fewer assembly errors and, therefore, lower associated costs, lower tool investment costs, a combination of different manufacturing processes, an optimised use of materials, and a more sustainable manufacturing process. Additive manufacturing is seen as being one of the major revolutionary industrial processes of the next few years. Additive manufacturing has several alternatives ranging from simple RepRap machines to complex fused metal deposition systems. This paper will expand upon the structural design of the machines, their history, classification, the alternatives existing today, materials used and their characteristics, the technology limitations, and also the prospects that are opening up for different technologies both in the professional field of innovation and the academic field of research. It is important to say that the choice of technology is directly dependent on the particular application being planned: first the application and then the technology. (shrink)

Addressing the study of human action from Mises’s perspective of the praxeological method is in itself highly controversial. Particularly, if it attempts to identify the ultimate basis of human development, it will face unmanageable problems in analytical and normative terms. The incapability to withdraw from the socalled self-evident judgments comes together with the refusal of the elements that address its operability. Dependent of a soft well-being concept, it is unable to establish interpersonal comparisons, and this in turn frustrates any kind (...) of attempt to design a convincing social justice theory. A Hegelian perspective brings order to and improves both the moral and the operability dimension of the praxeological interpretation of economics. (shrink)

El propósito de este trabajo se enmarca en la necesidad de esclarecer la naturaleza última del capitalismo que cristaliza ideológicamente desde las bases fecundas de la modernidad. Desde el examen crítico de los trabajos de S. Žižek realizaremos una introspección analítica que nos permita arrojar luz no solo a cómo el capitalismo configura la realidad de esta época sino al modo en que gestiona sus límites y fija su devenir. Se concluirá que el capitalismo lejos de ser el resultado político (...) de un proceso socio-económico caprichoso resulta ser la materialización de un instante de la conciencia moral que destinada a emanciparse se encuentra todavía en su comienzo. (shrink)

El argumento general que presenta el texto de Lechner está bastante bien resumido por el propio autor, así que no vamos a intentar mejorarlo: “Nuestra sociedad se encuentra atravesada por la lucha que enfrenta la reivindicación de la auto-determinación democrática a la naturalización de lo social. En su lucha por ‘ser sujeto’ (tanto individual y colectivo) de su destino, los hombres se topan con múltiples problemas (pág. 99). Lo que se produce en la sociedad chilena es una autonomía de los (...) si.. (shrink)

SummaryRecord linking provided information on the complete reproductive schedules of a sample of 1102 couples with at least two children born alive from a rural Spanish community characterised by very high extramarital reproduction. Birth spacing was analysed considering final family size as well as the legitimate–illegitimate status and sex of the newborn, and survival of the preceding sibling.

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)

Corporate, Social, Ethical and Environmental Reporting should ideally discharge the accountability of an organisation to its stakeholders. Voluntary reporting has been characterised by a dearth of neutral and objective information such that the advocates of SEER recommend that it be made compulsory. Their underlying rationale is that legally specified disclosure requirements and enforcement mechanisms will enhance the quality of such reporting. This paper sets out to explore how realistic this scenario actually is, in view of the conflicting interpretations in the (...) literature on this subject. To that end, a survey of the reporting patterns of 78 of the largest Spanish companies between 2001 and 2003 examines the extent of their compliance with the ICAC-2002 standard, which obliged them to make environmental disclosures in their financial statements. The results suggest that progressive and improved regulation could increase the volume and quality of SEER disclosures. They also suggest, however, that persistent non-compliance means that the problems associated with voluntary disclosure still exist. Finally, through an impression management perspective, the study reveals, the diverse strategies, ranging from dismissal to concealment, that are employed by companies to avoid transparency. As regulation improves and enforcement expectations rise, it becomes more difficult to dismiss compulsory reporting norms. As a result, some firms engage in more complex concealment strategies to attain corporate legitimacy, depriving stakeholders of regulatory information. The latter point serves to reconcile apparently contradictory explanations in the literature as to whether legitimacy theory might explain partial compliance with SEER regulation. (shrink)

Mental body-representations are highly plastic and can be modified after brief exposure to unexpected sensory feedback. While the role of vision, touch and proprioception in shaping body-representations has been highlighted by many studies, the auditory influences on mental body-representations remain poorly understood. Changes in body-representations by the manipulation of natural sounds produced when one's body impacts on surfaces have recently been evidenced. But will these changes also occur with non-naturalistic sounds, which provide no information about the impact produced by or (...) on the body? Drawing on the well-documented capacity of dynamic changes in pitch to elicit impressions of motion along the vertical plane and of changes in object size, we asked participants to pull on their right index fingertip with their left hand while they were presented with brief sounds of rising, falling or constant pitches, and in the absence of visual information of their hands. Results show an "auditory Pinocchio" effect, with participants feeling and estimating their finger to be longer after the rising pitch condition. These results provide the first evidence that sounds that are not indicative of veridical movement, such as non-naturalistic sounds, can induce a Pinocchio-like change in body-representation when arbitrarily paired with a bodily action. (shrink)

Se analiza la incorporación del espacio a las dinámicas centrales de los procesos políticos y económicos en el último cuarto del siglo XX en España, a través de su relación con las sucesivas crisis, principalmente reconocidas por su componente económico. Se ha apostado por la producción de espacio (transformación y crecimiento) como respuesta o salida a la crisis fordista, cuestión que finalmente se ha convertido en un componente principal dentro de la actual crisis de financiarización. Se toma como ejemplo el (...) caso de Madrid por resultar paradigmático, ya que la región ha desempeñado un papel como laboratorio de nuevas formas de gobierno y planificación que han dado un mayor protagonismo al espacio, principalmente por el apoyo al crecimiento físico, como motor de crecimiento económico y de competitividad de la región metropolitana en el concierto europeo y mundial de ciudades. (shrink)