In this article, we illustrate experimentally an important consequence of the stochastic component in choice behaviour which has not been acknowledged so far. Namely, its potential to produce ‘regression to the mean’ (RTM) effects. We employ a novel approach to individual choice under risk, based on repeated multiple-lottery choices (i.e. choices among many lotteries), to show how the high degree of stochastic variability present in individual decisions can distort crucially certain results through RTM effects. We demonstrate the point in the (...) context of a social comparison experiment. (shrink)

Resumen La ética es un saber filosófico que puede ser enfocado de distintas maneras, y una de ellas es el enfoque de la vulnerabilidad, que es un aspecto evidente de la realidad humana. Desde este punto de vista, es preciso distinguir entre la vulnerabilidad general y la vulnerabilidad contextual. Por su parte, en el caso de la vulnerabilidad contextual, es necesario distinguir entre la que es producto de opciones voluntarias y la que se produce por razones involuntarias. En el marco (...) de estas distinciones, reflexionamos sobre la situación de pandemia mun dial que estamos padeciendo y proponemos algunas medidas de carácter ético que pueden ser útiles para afrontar la crisis.Ethics is a philosophical knowledge that can be approached in different ways, and one of them is the approach to vulnerability, which is an evident aspect of human reality. From this point of view, it is necessary to distinguish between general vulnerability and contextual vulnerability. In the case of contextual vulnerability, it is necessary to distinguish between that which is the product of voluntary choices and that which occurs for involuntary reasons. Within the framework of these distinctions, we reflect on the global pandemic situation that we are suffering from and propose some ethical measures that may be useful in facing the crisis. (shrink)

Resumen En un mundo irreversiblemente globalizado, la ética del desarrollo señala los principales argumentos, conceptos y principios que pueden orientar las políticas de desarrollo en el interior de los países y también en las relaciones internacionales. Desde que nació en los años 60, la ética del desarrollo ha impulsado en gran medida el tránsito desde un concepto de desarrollo inicialmente muy pobre hasta el actual concepto complejo de desarrollo humano sostenible.In an irreversibly globalized world, Development Ethics points out the main (...) arguments, concepts and principles that can guide development policies within countries and also in international relations. Since it was born in the 1960s, Development Ethics has largely driven the transition from an initially very poor development concept to the present complex concept of sustainable human development. (shrink)

Presentación del Monográfico sobre Racionalidad y Neurociencias (Daímon 59, 2013).

Los estados eran tradicionalmente los encargados de responder del ámbito público y de promover los derechos humanos (Ruggie, 2013); los mercados atendían a la generación de valor económico; y el tercer sector se encargaba de la integración social. Sin embargo, hoy en día esto ha cambiado, ya no es equivalente la responsabilidad pública con la responsabilidad estatal. Aunque los estados siguen siendo los máximos responsables, no son los únicos agentes responsables de esa tarea. Ahora hablamos de una sociedad civil globalizada (...) (García-Marzá, 2013). No en vano, el subtítulo de este monográfico especial de Recerca es «El papel de la sociedad civil». (shrink)

Polyglutamine (polyQ) diseases are genetically inherited neurodegenerative disorders. They are caused by mutations that result in polyQ expansions of particular proteins. Mutant proteins form intranuclear aggregates, induce cytotoxicity and cause neuronal cell death. Protein interaction data suggest that polyQ regions modulate interactions between coiled‐coil (CC) domains. In the case of the polyQ disease spinocerebellar ataxia type‐1 (SCA1), interacting proteins with CC domains further enhance aggregation and toxicity of mutant ataxin‐1 (ATXN1). Here, we suggest that CC partners interacting with the polyQ (...) region of a mutant protein, increase its aggregation while partners that interact with a different region reduce the formation of aggregates. Computational analysis of genetic screens revealed that CC‐rich proteins are highly enriched among genes that enhance pathogenicity of polyQ proteins, supporting our hypothesis. We therefore suggest that blocking interactions between mutant polyQ proteins and their CC partners might constitute a promising preventive strategy against neurodegeneration. (shrink)

In Older Adults (OAs), Electroencephalogram (EEG) slowing in frontal lobes and a diminished muscle atonia during Rapid Eye Movement sleep (REM) have each been effective tracers of Mild Cognitive Impairment (MCI), but this relationship remains to be explored by non-linear analysis. Likewise, data provided by EEG, EMG (Electromyogram) and EOG (Electrooculogram)—the three required sleep indicators—during the transition from REM to Non-REM (NREM) sleep have not been related jointly to MCI. Therefore, the main aim of the study was to explore, with (...) results for Detrended Fluctuation Analysis (DFA) and multichannel DFA (mDFA), the Color of Noise (CN) at the NREM to REM transition in OAs with MCI vs. subjects with good performances. The comparisons for the transition from NREM to REM were made for each group at each cerebral area, taking bilateral derivations to evaluate interhemispheric coupling and anteroposterior and posterior networks. In addition, stationarity analysis was carried out to explore if the three markers distinguished between the groups. Neuropsi and the Mini-Mental State Examination (MMSE) were administered, as well as other geriatric tests. One night polysomnography was applied to 6 OAs with MCI (68.1 ± 3) and to 7 subjects without it (CTRL) (64.5 ± 9), and pre-REM and REM epochs were analyzed for each subject. Lower scores for attention, memory and executive funcions and a greater index of arousals during sleep were found for the MCI group. Results confirmed that EOGs constituted significant markers of MCI, increasing the CN for the MCI group in REM sleep. The CN of the EEG from the pre-REM to REM was higher for the MCI group vs. the opposite for the CTRL group at frontotemporal areas. Frontopolar interhemispheric scaling values also followed this trend as well as right anteroposterior networks. EMG Hurst values for both groups were lower than those for EEG and EOG. Stationarity analyses showed differences between stages in frontal areas and right and left EOGs for both groups. These results may demonstrate the breakdown of fractality of areas especially involved in executive functioning and the way weak stationarity analyses may help to distinguish between sleep stages in OAs. (shrink)

Time series forecasting is a well-known deep learning application field in which previous data are used to predict the future behavior of the series. Recently, several deep learning approaches have been proposed in which several nonlinear functions are applied to the input to obtain the output. In this paper, we introduce a novel method to improve the performance of deep learning models in time series forecasting. This method divides the model into hierarchies or levels from simpler to more complex ones. (...) Simpler levels handle smoothed versions of the input, whereas the most complex level processes the original time series. This method follows the human learning process where general/simpler tasks are performed first, and afterward, more precise/harder ones are accomplished. Our proposed methodology has been applied to the LSTM architecture, showing remarkable performance in various time series. In addition, a comparison is reported including a standard LSTM and novel methods such as DeepAR, Temporal Fusion Transformer, NBEATS and Echo State Network. (shrink)

Background: The field of voice and speech analysis has become increasingly popular over the last 10 years, and articles on its use in detecting neurodegenerative diseases have proliferated. Many studies have identified characteristic speech features that can be used to draw an accurate distinction between healthy aging among older people and those with mild cognitive impairment and Alzheimer's disease. Speech analysis has been singled out as a cost-effective and reliable method for detecting the presence of both conditions. In this research, (...) a systematic review was conducted to determine these features and their diagnostic accuracy.Methods: Peer-reviewed literature was located across multiple databases, involving studies that apply new procedures of automatic speech analysis to collect behavioral evidence of linguistic impairments along with their diagnostic accuracy on Alzheimer's disease and mild cognitive impairment. The risk of bias was assessed by using JBI and QUADAS-2 checklists.Results: Thirty-five papers met the inclusion criteria; of these, 11 were descriptive studies that either identified voice features or explored their cognitive correlates, and the rest were diagnostic studies. Overall, the studies were of good quality and presented solid evidence of the usefulness of this technique. The distinctive acoustic and rhythmic features found are gathered. Most studies record a diagnostic accuracy over 88% for Alzheimer's and 80% for mild cognitive impairment.Conclusion: Automatic speech analysis is a promising tool for diagnosing mild cognitive impairment and Alzheimer's disease. The reported features seem to be indicators of the cognitive changes in older people. The specific features and the cognitive changes involved could be the subject of further research. (shrink)

We analyse the relationship between applicability and effectiveness of legal norms from a philosophical perspective. In particular, we distinguish between two concepts of applicability. The external applicability of norms refers to institutional duties; a norm N is externally applicable if and only if a judge is legally obliged to apply N to some case c. Internal applicability refers instead to the sphere of validity of legal norms. A norm N is internally applicable to actions regulated by its sphere of validity. (...) We also explore the consequences of a thesis which maintains that applicability restricts the concept of effectiveness, so that only applicable norms can be considered effective. Our analysis illustrates that a proper reconstruction of the concept of applicability is of great importance not only for understanding the concept of effectiveness but also for providing insight into the nature of law. (shrink)

Journal Name: Semiotica Issue: Ahead of print.

Feature selection is a widely studied technique whose goal is to reduce the dimensionality of the problem by removing irrelevant features. It has multiple benefits, such as improved efficacy, efficiency and interpretability of almost any type of machine learning model. Feature selection techniques may be divided into three main categories, depending on the process used to remove the features known as Filter, Wrapper and Embedded. Embedded methods are usually the preferred feature selection method that efficiently obtains a selection of the (...) most relevant features of the model. However, not all models support an embedded feature selection that forces the use of a different method, reducing the efficiency and reliability of the selection. Neural networks are an example of a model that does not support embedded feature selection. As neural networks have shown to provide remarkable results in multiple scenarios such as classification and regression, sometimes in an ensemble with a model that includes an embedded feature selection, we attempt to embed a feature selection process with a general-purpose methodology. In this work, we propose a novel general-purpose layer for neural networks that removes the influence of irrelevant features. The Feature-Aware Drop Layer is included at the top of the neural network and trained during the backpropagation process without any additional parameters. Our methodology is tested with 17 datasets for classification and regression tasks, including data from different fields such as Health, Economic and Environment, among others. The results show remarkable improvements compared to three different feature selection approaches, with reliable, efficient and effective results. (shrink)

A considerable number of books and papers have analyzed normative concepts using new techniques developed by logicians; however, few have bridged the gap between the English legal culture and the Continental tradition in legal philosophy. This book addresses this issue by offering an introductory study on the many possibilities that logical analysis offers the study of legal systems. The volume is divided into two sections: the first covers the basic aspects of classical and deontic logic and its connections, advancing an (...) explanation of the most important topics of the discipline by comparing different systems of deontic logic and exploring some of the most important paradoxes in its domain. The second section deals with the role of logic in the analysis of legal systems by discussing in what sense deontic logic and the logic of norm-propositions are useful tools for a proper understanding of the systematic structure of law. (shrink)

Resumen El proyecto Es.Var.Atenuación se interesa por el estudio de la atenuación pragmática a nivel lingüístico, estructural, enunciativo y situacional, en corpus discursivos del español, a fin de reconocer las posibles estrategias atenuantes de un acto comunicativo. Para llevar a cabo el análisis se parte de una ficha de trabajo. Onomázein, 28, pp. 288–319; Albelda, Briz, Cestero, Kotwica y Villalba, 2014. Ficha metodológica para el análisis pragmático de la atenuación en corpus discursivos del español.. Oralia, 17, pp. 7–62) organizada en (...) cinco bloques de factores: funciones de la atenuación, procedimientos lingüísticos de la atenuación, factores estructurales, factores enunciativos y factores situacionales. A partir de esta ficha de trabajo, el propósito de nuestra investigación es considerar la implicación del componente fonoprosódico de la lengua, de modo que nos centramos en el segundo bloque de factores de la ficha indicada. Dicho bloque contiene 22 tácticas lingüísticas de atenuación; de ellas, la táctica 21 se refiere a los elementos prosódicos, paralingüísticos o gestuales y su papel en la expresión de atenuación. Esta táctica, no obstante, debe ser desarrollada para valorar mejor el peso de lo prosódico en la atenuación; se cuenta para ello con la experiencia previa del proyecto Fonocortesía, donde se manejan parámetros segmentales y suprasegmentales relevantes para la expresión de cortesía verbal. El objetivo de este trabajo es, en fin, desarrollar metodológicamente la descripción del componente prosódico en la actividad atenuadora, y precisar a través de parámetros acústicos objetivables en qué pueda consistir ese papel atenuante. (shrink)

La Cátedra de Historia Naval, impulsada por la Armada Española y la Universidad de Murcia, tiene entre sus objetivos investigar y difundir la Historia y el Patrimonio Naval y Marítimo. Con objeto acercar el conocimiento científico y la información divulgativa versada en esta materia al usuario, nuestra institución no se limita a utilizar los canales clásicos de comunicación como pueden ser los artículos y las monografías, entre otros, sino que, en su apuesta por las Humanidades Digitales, hace un uso pro-activo (...) de un blog y de unos perfiles en las redes sociales que, aparentemente, nos hacen contactar con el lector virtual de manera eficaz. Con el objetivo de seguir mejorando, a través del presente trabajo se analizan qué temas han suscitado un mayor interés entre los lectores de nuestras herramientas sociales, a través del estudio de las publicaciones de nuestra bitácora 2.0 y del reflejo de éstas en nuestra página en Facebook. La respuesta nos ayudará a conocer mejor los intereses y necesidades de información de los usuarios y, consecuentemente, podremos seguir perfeccionando los puentes digitales que hemos tendido entre ellos y la Historia y del Patrimonio Naval y Marítimo. (shrink)

Research on grammatical gender processing has generally assumed that grammatical gender can be treated as a uniform construct, resulting in a body of literature in which different gender classes are collapsed into single analyses. The present work reviews linguistic, psycholinguistic, and neurolinguistic research on grammatical gender from different methodologies and across different profiles of Spanish speakers. Specifically, we examine distributional asymmetries between masculine and feminine grammatical gender, the resulting biases in gender assignment, and the consequences of these assignment strategies on (...) gender expectancy and processing. We discuss the implications of the findings for the design of future gender processing studies and, more broadly, for our understanding of the potential differences in the processing reflexes of grammatical gender classes within and across languages. (shrink)

En este trabajo analizo la autonomía y relevancia normativa de las normas permisivas. En especial, mis propósitos principales son revisar dos tesis escépticas: los permisos y las normas permisivas pueden reducirse a otras formas normativas, e.g. derogación de prohibiciones, y no se producen diferencias significativas cuando se permite una conducta que no había sido previamente regulada. Ambas tesis son examinadas en relación a la naturaleza y función del principio de clausura normativa. La conclusión de este trabajo es que las normas (...) permisivas, y en particular las normas de clausura, pueden cumplir una importante función en los sistemas normativos y son una herramienta útil para analizar otros problemas como las lagunas del derecho y la discreción judicial. (shrink)

En este trabajo ofrezco un análisis de algunas de las ideas más importantes sostenidas por Ricardo Caracciolo en su ensayo sobre hechos y justifi cación de las decisiones judiciales. Estas tesis son: a) tesis de la aplicación posible. Las normas generales sólo se pueden aplicar a los casos que ellas regulan; b) tesis de la aplicación efectiva. Una norma general es aplicada a un hecho sólo si la premisa que describe ese hecho es verdadera. Este artículo muestra que hay buenas (...) razones para revisar ambas tesis ya que ellas pasan por alto una distinción relevante entre distintos sentidos de ‘casos individual’: casos individuales de un universo del discurso y casos individuales de un caso genérico. Como consecuencia de ello, se señala que es necesario modelar un concepto de justifi cación jurídica que no presuponga a esas mencionadas tesis. (shrink)

En el ámbito de la situación presente de crisis de lo humano, así como de la efusión actual del fenómeno místico, esta reflexión se aproxima a la experiencia mística contemporánea a través de uno de sus testigos: Etty Hillesum. El acercamiento a la trama narrativa de su diario hizo posible que el decir del ser, el decir sobre lo humano en la experiencia mística se abriera paso a través de un ejercicio hermenéutico existencial con la mediación del relato. El asunto (...) central consistió en buscar en la experiencia mística la raíz y expresiones de su fuerza humanizadora. En este sentido, a partir de una aproximación a ‘lo humano’ desde las categorías: interioridad, actitud teologal y alteridad, la reflexión abrió el paso a la consideración sobre la experiencia mística y su conexión con ‘lo humano’ que busca humanidad. Asunto éste que hizo posible plantear algunas perspectivas que contribuyan a explicitar el potencial humanizador de la Experiencia Mística hoy. ln the ambit of the present situation of the crisis of the 'human', as well as of the current outpouring of the mystic phenomenon, this reflection approaches contemporary mystical experience by one of its witnesses: Etty Hillesum. The approach to the narrative of her diary made it possible to soy of the "being", which is to say about the human in the mystical experience would open a way through a hermeneutic existential exercise with the mediation of the story. The main issue consisted of searching in the mystical experience, the root and expressions of its humanizing force. In this sense, from an approximation to the 'human' from the categories: interiority, theological attitude and otherness, the reflection opened the way for consideration on the mystical experience and its connection with the 'human' which seeks its humanity. This matter which made it possible to set out some perspectives that contribute to make explicit the humanizing potential of the Mystical Experience today. (shrink)

ABSTRACTThe social content of affective stimuli has been proposed as having an influence on cognitive processing and behaviour. This research was aimed, therefore, at studying whether automatic exogenous attention demanded by affective pictures was related to their social value. We hypothesised that affective social pictures would capture attention to a greater extent than non-social affective stimuli. For this purpose, we recorded event-related potentials in a sample of 24 participants engaged in a digit categorisation task. Distracters were affective pictures varying in (...) social content, in addition to affective valence and arousal, which appeared in the background during the task. Our data revealed that pictures depicting high social content captured greater automatic attention than other pictures, as reflected by the greater amplitude and shorter latency of anterior P2, and anterior and posterior N2 components of the ERPs. In addition, social content also provoked greater allocation of processing resour... (shrink)

Renal replacement therapy is the indicated treatment for individuals with chronic kidney disease (CKD) to survive. However, not all sick people have access to the same treatment. This study compares renal care in two developing countries with different health systems. Specifically, it explores hemodialysis treatment from the perspective of low‐income individuals. A qualitative, comparative study was performed in Brazil and Mexico. Using purposive sampling, the research was based on open‐ended interviews with nineteen participants with kidney failure undergoing hemodialysis treatment in (...) public hospitals and ten relatives. According to our results, Brazilian participants perceived hemodialysis care as satisfactory because of health personnel courtesy as well as free access to dialysis treatment, prescription drugs, hospitalization and transportation. However, they reported deficiencies in the care they were receiving due to shortages of specialists, prescription drugs, laboratory tests and transportation. Mexican participants, in contrast, highlighted the catastrophic costs of medical care because they had no free access to renal therapy, nor adequate financial resources. Our findings suggest that low‐income Brazilian CKD sufferers experience renal care differently, as they are more satisfied and face less obstacles with hemodialysis compared with those of Mexico. More studies on the topic are needed. (shrink)

Neuropsychologist Mario Martinez is a pioneer in the science of the mindbody--his term for that essential oneness of cognition and biology--and a passionate advocate for its power to reshape our lives, if we work with it consciously. In The MindBody Self, he builds on the foundation he laid in... MindBody Code to explore the cultural conditions that coauthor our reality and shape every aspect of our lives, from health and longevity to relationships and self-esteem. Then he offers practical tools we (...) can use to shed outworn patterns and create sustainable change. You'll read about: How our cultural beliefs affect the diagnosis, prognosis, and treatment of disease; The difference between growing older (which we all do) and "aging" by our culture's standards (which we can learn not to do); What happens when we move "beyond the pale" of our tribe's expectations; How to navigate adversity using uncertainty as a guide; Biocognitive tools for a healthy life. (shrink)

Este trabajo analiza los aspectos más destacados de la polémica entre Juan Carlos Bayón y Eugenio Bulygin acerca de las lagunas jurídicas, el principio de prohibición y el alcance de la discreción judicial. En esta disputa, Bulygin defiende cuatro tesis centrales, enunciadas en Normative Systems : una cuidadosa distinción entre normas y proposiciones normativas es esencial para resolver el problema de las lagunas jurídicas, la versión débil del principio de prohibición no sirve para mostrar que no existen lagunas, la versión (...) fuerte del principio de prohibición es verdadera solo cuando el sistema es completo, y en casos de lagunas jurídicas, los jueces tienen discreción para resolver estas situaciones. Sin embargo, Bayón señala que el problema no es la falta de distinción entre normas y proposiciones normativas sino el desacuerdo acerca de cuándo una solución jurídica es concluyente. La diferencia entre soluciones prima facie y concluyente es esencial porque en ciertas situaciones, el derecho no da una respuesta pero tampoco deja espacio para la discrecionalidad judicial. Según Bayón, en estos casos el principio de prohibición "todo lo que no está prohibido está permitido" juega un papel fundamental. Este trabajo muestra que los argumentos de Bayón son insuficientes para rechazar las tesis clásicas defendidas por Bulygin. In this paper I analyze the most relevant aspects of the controversy between Juan Carlos Bayón and Eugenio Bulygin about the existence of legal gaps, the so called "principle of prohibition" and the scope of judicial discretion. In this debate, Bulygin defends four classical theses advanced in his wellknown book, Normative Systems : a careful distinction between norms and norm propositions is actually needed in order to solve the problem of legal gaps, the analytical truth of the weak version of the principle of prohibition cannot guarantee the completeness of legal systems, the strong version of the principle of prohibition is true only if legal systems are complete, and judges have discretion in cases of legal gaps. However, Bayón claims that the problem is not the lack of distinction between norms and norm proposition but rather the identification of conclusive legal solutions. Conclusive legal solutions must be distinguished from the prima facie solutions provided by explicitly enacted norms. According to Bayón, the difference between conclusive and prima facie solutions is essential in legally irrelevant cases; in such cases the principle of prohibition plays an essential role because it entails the rejection of judicial discretion. In this paper I claim that the arguments advanced by Bayón fail to provide a sound ground for discarding the classical theses defended by Bulygin. (shrink)

This paper presents two formation tracking control strategies for a combined set of single and double integrator agents with an arbitrary undirected communication topology. The first approach is based on the design of distance-based potential functions with interagent collision avoidance using local information about the distance and orientation between agents and the desired trajectory. The second approach adds signed area constraints to the desired formation specification and a control strategy that uses distance as well as area terms is designed to (...) achieve tracking convergence. Numerical simulations show the performance from both control laws. (shrink)

Este trabajo es una crítica a la distinción entre lagunas de conocimiento y reconocimiento. En Normative Systems, Alchourrón y Bulygin sostienen que estas indeterminaciones en la aplicación del derecho son problemas diferentes. Según AB, las lagunas de conocimiento surgen por nuestro deficiente conocimiento de las circunstancias del caso, pero las lagunas de reconocimiento se producen por la vaguedad del lenguaje. Para resolver las lagunas de conocimiento, los juristas usan presunciones y para resolver las lagunas de reconocimiento es preciso redefinir los (...) conceptos. Sin embargo, AB no ofrecen una reconstrucción específica de la vaguedad y ello afecta al análisis de esos tipos de lagunas. En particular, AB creen que la vaguedad es un problema epistémico y, por ello, un sistema completo puede ofrecer una respuesta correcta para cada caso individual aun cuando no podamos conocer esa solución. Pero, cuando se asume que la vaguedad es un problema epistémico, entonces no existen mayores razones para distinguir entre lagunas de conocimiento y lagunas de reconocimiento. This paper analyzes the distinction between gaps of knowledge and gaps of recognition. In Normative Systems, Alchourrón and Bulygin claim that both indeterminacies are different problems that arise in the application of general norms to individual cases. Where through ignorance of certain properties of the facts, we cannot determine whether an individual case belongs to a generic case, we speak of gap of knowledge. On the contrary, gaps of recognitions are caused by the semantic indeterminacy of the concepts which define a generic case. In order to solve gaps of knowledge, jurists use legal presumptions, but the solution of a gap of knowledge requires the redefinition of a certain concept. However, AB believe that vagueness is only an epistemic problem. For this reason, they conclude that a complete normative system resolves every possible individual case even though we can still find epistemic indeterminacies. However, this paper shows that if vagueness is characterized as an epistemic problem, there will be no relevant reason for stressing the distinction between gaps of recognition and gaps of knowledge. (shrink)

This study explores the efficacy of a specific tool – the articulation of the ideal self – in job engagement, psychological well-being, and organizational citizenship behavior. We hypothesized that employees who can visualize their jobs as part of their ideal self – in particular how it helps in its development and realization – would feel higher levels of engagement and fulfillment in their lives, as well as engage in greater amounts of helping and voice OCB. A total of 239 full (...) time employees from five companies in Costa Rica filled out the ideal self questionnaire, the job engagement, and psychological well-being surveys, and were evaluated by their peers on task behavior and helping and voice OCB. Results of the SEM model showed that the ideal self was positively related to job engagement, psychological well-being and helping and voice. These findings contribute to the research on the impact and importance for organizations to help employees find meaningfulness in their work. (shrink)

The Los Angeles radio personality and bicognitive science founder outlines training steps for developing "worthiness-consciousness" and overcoming self-sabotaging beliefs to transform one's health and relationships.

In this paper, I consider some problems concerning the structure of legal systems. In order to do this, I basically analyze the promulgation and derogation of legal rules. Frequently, promulgation has been referred to as the introduction of a rule into, and derogation as the removal of a rule from, a normative system. I try to show that there is more to it than that. One of the main ideas of the paper is that the enactment or derogation of a (...) legal rule by an authority na restricts the competence of all lower authorities: Once a rule R has been enacted by an authority na, authorities inferior to na cannot remove R from the normative system; and when R has been derogated by na, lower authorities do not have the competence to introduce R into the system. Further important questions include: What happens with derogated rules? What is the structure of the set of derogated rules? When does a rule belong to a derogated set, and when is it removed from a derogated set? These questions are very important for a theory of legal systems, and I try to give some possible answers. Perhaps the main conclusion of the paper is that promulgation and derogation can be considered very similar processes with respect to legal systems. (shrink)