Atrial fibrillation is the most common cardiac arrhythmia in clinical practice. It often starts with asymptomatic and short episodes, which are difficult to detect without the assistance of automatic monitoring tools. The vast majority of methods proposed for this purpose are based on quantifying the irregular ventricular response during the arrhythmia. However, although AF totally alters the atrial activity reflected on the electrocardiogram, replacing stable P-waves by chaotic and time-variant fibrillatory waves, this information has still not been explored for automated (...) screening of AF. Hence, a pioneering AF detector based on quantifying the variability over time of the AA morphological pattern is here proposed. Results from two public reference databases have proven that the proposed method outperforms current state-of-the-art algorithms, reporting accuracy higher than 90%. A less false positive rate in the presence of other arrhythmias different from AF was also noticed. Finally, the combination of this algorithm with the classical analysis of RR series variability also yielded a promising trade-off between AF accuracy and detection delay. Indeed, this combination provided similar accuracy than RR-based methods, but with a significantly shorter delay of 10 beats. (shrink)

La profesión de carpintero de ribera, sus técnicas, las herramientas utilizadas, los productos finales: los barcos, así como los conocimientos necesarios para su fabricación forman parte del patrimonio cultural marítimo universal. La construcción en madera es un oficio milenario que está en peligro de desaparición, y con ella uno de los elementos identitarios más importantes de las regiones costeras europeas. La escasa historiografía académica sobre los carpinteros de ribera como protagonistas es el principal motivo de este trabajo, que se adentra (...) en sus raíces, dando a conocer algunos de los aspectos más relevantes que definen e identifican la importancia del tema, como las principales actividades desarrolladas, su contextualización histórica, las técnicas, herramientas y la lengua franca marinera que compartían. Por ello, el fin último es proporcionar una fuente de referencia a quiénes apuesten, tanto de manera teórica como práctica, por la recuperación y la conservación de esta profesión ancestral sobre la que apenas existe información e investigación. Se concluye que la recuperación y gestión de este patrimonio, con vinculaciones amplias con otras actividades relacionadas, puede abrir perspectivas de consolidación patrimonial y económica en espacios marítimos poco desarrollados, ya que puede servir para sentar las bases de un futuro turismo cultural en el que estas técnicas sean protagonistas y sirvan para potenciar la identidad marítima en las regiones litorales. (shrink)

Introduction: Loss of employment is an experience that is lived and interpreted differently depending on a series of individual variables, including the psychological resources available to the affected person, as well as their perception of their degree of employability. Losing one’s job can be one of the most painful and traumatic events a person has to withstand. Following a dismissal, the worker needs to overcome a period of emotional adaptation to the loss. But that period of grieving can also condition (...) the process of job search of the person, and be influenced by different variables, highlighting the age and work experience. The objective of this study is to analyze the relationship between intensity and type of affliction due to the loss of employment in older workers and their level of employability. Method: We carried out a descriptive, analytical, cross-sectional study. The sample consisted of 140 unemployed participants, from 19 to 65 years of age, users of job Orientation in the Public Employment Service of Andalusia (España). Of the total participants, 66 were unemployed and over 45 years of age. They all took the Labour Insertion Potential Assessment Test, and the Texas Inventory revised adapted to job loss Results: Significant differences are shown in the grieving process due to loss of employment between both groups, with the older unemployed living the process more intensely. In relation to the employability potential, differences are found between both groups in terms of availability, perceived difficulties and fears. Interrelationships between total grieving intensity and the importance that older jobseekers give to work are also indicated. Conclusion:Loss of employment and the psychological and health consequences of this situation are identified with those that arise in the grieving process. Older workers present a series of features that determine that their job loss grieving process is more intense and lasts longer than that of other younger workers, regardless of whether the job loss was recent or not. On the other hand, it is shown that the intensity of grieving is related to the decrease of certain variables that are part of the concept of employability. (shrink)

¿Cuál es la mejor imagen para representar la actividad filosófica? García Morente analiza tres esculturas: Le penseur de Rodin, Il pensieroso de Miguel Ángel y la escultura de El doncel de Sigüenza que se encuentra en la catedral de esta ciudad. Esta última, afirma Morente, refleja mejor que ninguna otra la naturaleza de la filosofía. En este ensayo se rechaza esta opinión de Morente y se proponen otras dos representaciones de la actividad filosófica, en este caso pinturas, que simbolizan más (...) adecuadamente el acto de filosofar, entendido como un diálogo socrático inacabable. (shrink)

La división de los deberes morales en estrictos y amplios se corresponde con la distinción entre las dos clases de contradicción que pueden darse al universalizar las máximas. Por tanto, su omisión dificul ta una correcta interpretación del imperativo categórico.

Popper acepta que es imposible realizar una falsación práctica definitiva, pero cree que esto no afecta a la posibilidad de una falsación en sentido lógico y, por tanto, no pone en cuestión el criterio de demarcación. Frente a esta convicción aquí se propone que la imposibilidad de efectuar una falsación definitiva modifica necesariamente la noción de demarcación de Popper.

Tras caracterizar brevemente el formalismo ético que constituye el núcleo de la ética de Kant y recordar la convicción kantiana de que el imperativo categórico no es sino la aclaración del principio moral que la razón vulgar prefilosófica posee, se intenta mostrar como algunas tesis que se siguen del sistema moral de Kant entran en contradicción con certezas de ese saber moral vulgar. Estas tesis son cuatro: la no existencia de voliciones indiferentes, la carencia de auténticos preceptos positivos que expresen (...) deberes y no sólo prohibiciones, la equivalente gravedad de todo acto indebido y la no aceptación de lo meritorio, pero no obligado. (shrink)

Popper acepta que es imposible realizar una falsación práctica definitiva, pero cree que esto no afecta a la posibilidad de una falsación en sentido lógico y, por tanto, no pone en cuestión el criterio de demarcación. Frente a esta convicción aquí se propone que la imposibilidad de efectuar una falsación definitiva modifica necesariamente la noción de demarcación de Popper.

Ship-type identification in a maritime context can be critical to the authorities to control the activities being carried out. Although Automatic Identification Systems has been mandatory for certain vessels, if a vessel does not have them voluntarily or not, it can lead to a whole set of problems, which is why the use of tracking alternatives such as radar is fully complementary for a vessel monitoring systems. However, radars provide positions, but not what they are detecting. Having systems capable of (...) adding categorical information to radar detections of vessels makes it possible to increase control of the activities being carried out, improve safety in maritime traffic, and optimize on-site inspection resources on the part of the authorities. This paper addresses the binary classification problem (fishing ships versus all other vessels) using unbalanced data from real vessel trajectories. It is performed from a deep learning approach comparing two of the main trends, Convolutional Neural Networks and Long Short-Term Memory. In this paper, it is proposed the weighted cross-entropy methodology and compared with classical data balancing strategies. Both networks show high performance when applying weighted cross-entropy compared with the classical machine learning approaches and classical balancing techniques. This work is shown to be a novel approach to the international problem of identifying fishing ships without context. (shrink)

Esta introducción presenta los estudios del volumen como respuestas a la primera de las tres preguntas fundamentales de la ontología: ¿Qué hay?, ¿Qué es el ser?, ¿Por qué hay algo y no más bien nada? A pesar de que la tercera cuestión ha sido considerada como la más originaria, la admiración de la que nace alcanza su plenitud cuando el filósofo se pregunta, además, por qué las cosas son así y no de otro modo. Pero esta nueva pregunta solo puede (...) surgir cuando el filósofo detiene su mirada ante la irreductible variedad de lo real, es decir, cuando se ocupa con los problemas fundamentales de la teoría de las categorías. (shrink)

Nietzsche uses many of the arguments used by himself against metaphysics in general to criticize the Cartesian cogito. The affinity indicated by Descartes himself between cogito and conscience means that the study focuses on the Nietzschean analysis of the problem of conscience, paying special attention to its anthropological implications. Faced with Cartesian reasoncentrism, Nietzsche maintains that, given that conscience is not an entity removed from the natural world, it is possible to present a strictly naturalist anthropology, eliminating the need to (...) resort to dualist hypothesis drawn from metaphysics or theology. (shrink)

Delimitando el problema mente-cerebro como específicamente moderno, diverso del de las relaciones cuerpo-alma, el autor realiza una fenomenología del darse de lo físico y de lo mental como pórtico necesario para indagar el tipo de relaciones que cabe concebir entre esos dos ámbitos fenoménicos. El recorrido de las diversas teorías se hace agrupándolas en dos enfoques generales: las teorías dualistas y las teorías monistas. A la exposición de cada una se acompañan las objeciones principales que cabe alzar contra ellas. Al (...) final del recorrido, el autor ofrece un argumento contra el materialismo monista, que, sin ser definitivo, parece abonar la mayor plausibilidad de la hipótesis dualista. (shrink)

In the Middle Age it was tried to show that índex of five predicables that Porfirio proposes in Isagoge was suitable and complete. More recently it is affirmed that chis índex is incomplete, and thal can add a new predicable that also Aristotle would have considered: the accidents per se.

El objeto de este trabajo es exponer la enseñanza de los comentarios neoplatónicos griegos sobre el carácter completo del catálogo aristotélico de las categorías en sí mismo considerado. Esta enseñanza puede contribuir a la clarificación del debate actual sobre el problema de la naturaleza de las categorías y su número. Se analizan y discuten los comentarios a las Categorias debidos a Porfirio, Dexipo, Ammonio, Simplicio, Olimpiodoro, Elías y Filopón.

Background:The first wave of the COVID-19 pandemic caused a shortage of qualified nurses in Spain. As a result, the government authorized the hiring of senior students.Objectives:To explore the ethical dilemmas and ethical conflicts experienced by final-year nursing students who worked during the first outbreak of the COVID-19 pandemic in Spain.Research design:A qualitative exploratory study was conducted using purposive sampling. Semi-structured interviews were carried out using a question guide. Interviews took place via a private video chat room platform. A thematic, inductive (...) analysis was performed of the information gathered.Participants and research context:Eighteen nursing students were recruited from two universities of Madrid, aged between 18 and 65 years old, enrolled in the fourth year of nursing studies and who were hired under a relief contract for health professionals during the pandemic.Ethical considerations:The present study was carried out in accordance with the Declaration of Helsinki, and the study was approved by the Local Ethics Committee of Universidad Rey Juan Carlos.Results:Three specific themes emerged: (a) coping with patient triage, (b) difficulties in providing end-of-life care, and (c) coping with patient death. Nursing students participated in the process of patient selection for resource allocation and ICU bed occupancy. They were shown how to care for patients who were not admitted to the ICU, in their last moments and were faced with the difficulties of applying end-of-life care. Finally, the nursing students were confronted with the death of their patients, in overwhelming numbers and under adverse conditions.Conclusions:These findings can help shed light on the ethical dilemmas and ethical conflicts faced by novice nursing students, incorporated into the workforce during the COVID-19 pandemic. Moreover, it was described that students may normalize the death due to the exhaustion and overwhelmed routine. (shrink)

Popper acepta que es imposible realizar una falsación práctica definitiva, pero cree que esto no afecta a la posibilidad de una falsación en sentido lógico y, por tanto, no pone en cuestión el criterio de demarcación. Frente a esta convicción aquí se propone que la imposibilidad de efectuar una falsación definitiva modifica necesariamente la noción de demarcación de Popper.

Popper acepta que es imposible realizar una falsación práctica definitiva, pero cree que esto no afecta a la posibilidad de una falsación en sentido lógico y, por tanto, no pone en cuestión el criterio de demarcación. Frente a esta convicción aquí se propone que la imposibilidad de efectuar una falsación definitiva modifica necesariamente la noción de demarcación de Popper.

Impaired emotional capacity in antisocial populations is a well-known reality. Taking the dimensional approach to the study of emotion, emotions are perceived as a disposition to action; they emerge from arousal of the appetitive or aversive system, and result in subjective, behavioral, and physiological responses that are modulated by the dimensions of valence, arousal, and dominance. This study uses the International Affective Picture System (IAPS) to study the interaction between the type of picture presented (pleasant, neutral, or unpleasant) and group (...) (adolescents under custody in juvenile justice centers, adolescents under non-custodial measures, and secondary school students) in the emotional assessment of these dimensions. The interaction between the study variables was statistically significant. Statistically significant differences were found between the three types of pictures presented, in the ratings of unpleasant pictures between the custody group and the group of secondary students in regular schooling in valence, and in the ratings of unpleasant, neutral, and pleasant pictures in arousal, between the custody group and all groups. Discriminant analyses of each affective dimension indicate that the unpleasant pictures with violent and/or aggressive content tend to be in the functions that most differentiate the antisocial groups. (shrink)

El presente escrito tiene por objeto tematizar la colonialidad del ser en el sur-global. Para ello, se identifican, por una parte, las diferencias entre el colonialismo y la colonialidad y, por otro lado, se analiza la emergencia del sintagma colonialidad del ser en el marco de las teorías de la colonialidad, las cuales se sitúan, como punto de partida, en la obra de Aníbal Quijano. La colonialidad del ser consiste en la infravaloración o inferiorización cultural de la vida humana colonizada. (...) La colonialidad del ser enuncia el despojo de la condición humana (des-humanización o sub-humanización) que padecieron los pueblos amerindios colonizados (siglo XVI-XVIII) y que, actualmente, continúan padecido los habitantes que constituyen el sur-global. (shrink)

Psychological flexibility is a key concept of acceptation and commitment therapy. This factor has been linked with psychological wellbeing and associated factors, such as quality of life, in cancer patients. These and other positive results of acceptation and commitment therapy in cancer patients found in previous research could be enhanced by using mhealth tools. A three-arm randomized superiority clinical trial, with a pre-post-follow-up repeated measures intergroup design with a 1:1:1 allocation ratio is proposed. A hundred and twenty cancer patients will (...) be randomly assigned to one of the following interventions: face-to-face ACT + mobile application, face-to-face ACT, and Waitlist control group. The primary expected outcome is to observe significant improvements in psychological flexibility acceptance and action questionnaire- II in the face-to-face ACT + app group, after comparing baseline and post-treatment scores, and the scores will remain stable in the two assessment points, 3 and 6 months after the intervention. Secondary expected outcomes are significant increasing scores in quality of life and post-traumatic-growth, and significant decreasing scores in anxiety and depression, insomnia and fatigue at the same assessment points. Also, it is expected that the scores of this group will be higher than the scores of the face-to-face ACT group and the waitlist control group. This study aims to assess the efficacy of a combined intervention for psychological flexibility and associated symptoms in cancer patients. The results of this protocol may help to consider the use of acceptation and commitment therapy and mhealth applications in cancer settings as a valid therapeutic choice.Clinical Trial Registration[www.ClinicalTrials.gov], identifier [NCT05126823]. (shrink)

The “power of the real”, which Zubiri conceptualized in the final period of his philosophy, is “inspired” in the creation concept of the Greek Fathers, according to Zubiri’sexposition of Greek Patristics in “Supernatural Being: God and Deification in Pauline Theology”. In addition, Zubiri makes that concept his own in a course on Christianity, published posthumously. That inspiration can be detected when Zubiri radicalizes his philosophical approach. This implies purifying his philosophy of elements from Latin theology,whose notions he contrasts with those (...) of Greek theology in the aforementioned work. InOn Essence, these elements do not permit Zubiri to elude the horizon of nihility, in hisview in force in Western thought from St. Augustine to Hegel, but not genuinely philosophical because it originates with Revelation. A consequence of this radicalization is toconside r “creation” as a revealed datum. At the same time, and insofar as this radicalization implies sticking only to the facts, Zubiri elaborates a proof of the reality of God, fromwhich follow as intellectually legitimate non-theistic options.El “poder de lo real”, que Zubiri conceptualiza en el último período de su filosofía, está “inspirado” en el concepto de creación propio de los Padres griegos, según la exposiciónque hace de la Patrística griega en “El ser sobrenatural: Dios y la deificación en la teologíapaulina”. Además, hace suyo ese concepto en un curso sobre el Cristianismo, publicadopóstumamente. Dicha inspiración puede detectarse cuando se radicalizan sus planteamientos filosóficos. Esto implicó depurar su filosofía de elementos provenientes de la Teología latina, cuyas nociones contrapone a los de la Teología griega en el trabajo mencionado. A la altura de Sobre la esencia, esos elementos no le permitirán sustraerse al horizontede nihilidad, a su juicio vigente en el pensamiento occidental desde San Agustín hastaHegel, y no genuinamente filosófico porque se origina con la Revelación. Consecuencia deesa radicalidad es considerar la “creación” como un dato revelado. Al mismo tiempo, y en lamedida en que esa radicalización implica atenerse sólo a los hechos, Zubiri elabora unaprueba de la realidad de Dios desde la que resultan intelectualmente legítimas las opciones no teístas. (shrink)

Se plantea en este trabajo la distinción entre ciencia y filosofía, tanto desde un punto de vista metódico como desde otro temático. Frente a una posible fundamentación de la ciencia en la filosofía, se sugiere una posible conciliación de ambas, que mantenga su diferencia, en el conocimiento matemático.

The aim of our experiment was to analyse the effect of the emotional valence (positive, negative, or neutral) on true and false recognition, matching the arousal, frequency, concreteness, and associative strength of the study and recognition words. Fifty younger adults and 46 healthy older adults performed three study tasks (with words of different valence: positive, negative, neutral) and their corresponding recognition tests. Two weeks later, they performed the three recognition tests again. The results show that words with a negative valence (...) produced less true recognition and less false recognition than words with a positive or neutral valence, in both younger and older adults, on the immediate recognition test. This pattern of results was also found in the younger adults on the delayed recognition test, whereas in the older participants, these differences disappeared. Thus, when arousal is controlled, both younger and older adults tend to recognise negative information worse than positive or neutral information, but they also commit fewer errors. Results would suggest that the greater arousal commonly associated with negative stimuli, rather than their own valence, could explain some of the contradictory results found in the literature. (shrink)

A proposal is presented for the incorporation of the concepts of STS into the teaching of science and technology at the Faculty of Engineering, Mexicali Campus, of the University of Baja California. The method outlined for the development of research and the application of the “Opinions Questionnaire on Science, Technology and Society” is described. This method allows an assessment of the views and attitudes of students and teachers on STS issues to identify their strong and weak points and to detect (...) the teaching and learning needs. Also, it is adequate to investigate the students’ attitudinal changes, their increased interest in the processes of learning, and the contribution of STS to their education and integration into the society. (shrink)