In this research, a sliding mode regulator with sine mapping is suggested for the stabilization of electricity generators being affected by magnet interaction nonlinearities and generator nonlinearities. To reach this goal, our suggested regulator has the following contributions: it starts from the sliding mode regulator with the modifications that the saturation mapping is used to reach a smoother performance instead of the signum mapping, and the sine mapping is applied to reach an upper bound in the proportional gain error, it (...) is used to reach some chosen constant behaviors for the angle position, angle speed, and current in the electricity generators, and its stabilization is ensured based on the Lyapunov approach. We show the simulation of the suggested regulator in two electricity generators. (shrink)

Studies of individuals under conditions of confinement or severe social and physical restrictions have consistently shown deleterious mental health effects but also high levels of adaptability when dealing with such conditions. Considering the role of physical activity and sport in psychological adaptation, this paper describes a longitudinal study to explore to what extent the imposed restrictions due to the outbreak of SARS-CoV-2 may have affected athletes’ mental health outcomes and how far the process of adaptation to confinement conditions is differentially (...) affected depending on whether the sports activity was practiced individually or in a group, and outdoors, indoors, or both. Two hundred and seventy-four athletes were assessed over 7 weeks using the GHQ-28 and an ad hoc survey exploring the practice of physical activity. A mixed-model fixed effects ANCOVA was used to analyze the effects of time, place, and company in which the sport was practiced, with an index of the amount of physical activity expended as a covariate. Results show a significant effect of time in three out of four of the GHQ-28 subscales, in all cases showing a consistent adaptation to conditions over time. Results also show that playing sport indoors, outdoors, or both, and practicing alone vs. with others differentially affect the somatic symptoms exhibited during confinement: Athletes who practiced sport with others showed higher levels of somatic symptoms at the beginning of the set of data but a quicker rate of adaptation. Differences arising from practicing sport alone or with others were more pronounced in the case of indoor sports, which could be related to the fact that physical activity that can be practiced during confinement is more similar to that practiced indoors alone. Implications relating to what sport psychologists and other health professionals may offer to athletes in stressful situations are discussed. (shrink)

The Iowa Gambling Task (IGT) is a popular method for examining real-life decision-making. Research has shown gender related differences in performance, in that men consistently outperform women. It has been suggested that these performance differences are related to decreased emotional control in women compared to men. Given the likely role of emotion in these gender differences, in the present study we examine the effect of a humor induction on IGT performance and whether the effect of humor is moderated by gender. (...) IGT performance and parameters from the Expectancy Valence Model were measured in 68 university students (34 men; mean age 22.02, SD = 4.3 and 34 women; mean age 22.3, SD = 4.1) during a 100 trial-IGT task. Participants were exposed to a brief video before each of the IGT decisions available; one half of the sample (17 men and 17 women) was exposed to 100 humor videos, while the other half was exposed to 100 non-humor videos during the task. We observed a significant interaction between gender and humor, such that under humor, women’s performance during the last block (trials 80-100) improved (compared to women under non-humor), whereas men’s performance during the last block was worse (compared to men under non-humor). Consistent with previous work, under non-humor, men outperformed women in the last block. Lastly, our EVM results show that humor impacts the learning mechanisms of decision-making differently in men and women. Humor impaired men’s ability to acquire knowledge about the payoff structure of the decks, and as a consequence they were stuck in suboptimal performance. On the other hand, humor facilitated women’s ability to explore and to learn from experience, improving performance. These findings deepen our understanding of the mechanisms underlying IGT decision-making and differential effects of humor in men and women. (shrink)

El autor toma las ideas fundamentales que los liberales han legado al mundo contemporáneo: la libertad y la propiedad fueron sus valores predilectos y su vigencia permanece hasta la actualidad. Empeñados en construir un Estado proclive a la libertad y la propiedad, los liberales idearon la soberanía, la separación de poderes y la posibilidad de que alguna vez hubiera Estados regidos por Constituciones. Hoy esas ideas constituyen los pilares de nuestra organización política.

This is the first study that directly links Krausism to the Spanish avant-garde. To this end, the book is presented in chronological order in efforts to highlight how Krausism evolved and affected the culture of Spain. Those changes occurred in the fields of education, politics, philosophy, literature, and arts, to name a few.

Las cuestiones éticas vuelven a ocupar un lugar central en la preocupacioes del hombre contemporáneo. Se trata de la eclosión de una sensibilidad renovada que lleva a enfocar todos los asuntos humanos y sociales desde el punto de vista moral.

In the last few years, biologists and computer scientists have claimed that the introduction of data science techniques in molecular biology has changed the characteristics and the aims of typical outputs (i.e. models) of such a discipline. In this paper we will critically examine this claim. First, we identify the received view on models and their aims in molecular biology. Models in molecular biology are mechanistic and explanatory. Next, we identify the scope and aims of data science (machine learning in (...) particular). These lie mainly in the creation of predictive models which performances increase as data set increases. Next, we will identify a tradeoff between predictive and explanatory performances by comparing the features of mechanistic and predictive models. Finally, we show how this a priori analysis of machine learning and mechanistic research applies to actual biological practice. This will be done by analyzing the publications of a consortium—The Cancer Genome Atlas—which stands at the forefront in integrating data science and molecular biology. The result will be that biologists have to deal with the tradeoff between explaining and predicting that we have identified, and hence the explanatory force of the ‘new’ biology is substantially diminished if compared to the ‘old’ biology. However, this aspect also emphasizes the existence of other research goals which make predictive force independent from explanation. (shrink)

The "theory of mind" framework has been the fastest growing body of empirical research in contemporary psychology. It has given rise to a range of positions on what it takes to relate to others as intentional beings. This book brings together disparate strands of ToM research, lays out historical roots of the idea, and indicates better alternatives.

The aim of this article is to theorize how materials can play an active, constitutive, and causally effective role in the production and sustenance of cultural forms and meanings. It does so through an empirical exploration of the Museum of Modern Art of New York (MoMA). The article describes the museum as an “objectification machine” that endeavors to transform and to stabilize artworks as meaningful “objects” that can be exhibited, classified, and circulated. The article explains how the extent to which (...) the museum succeeds in this process of stabilization ultimately depends on the material properties of artworks and, more specially, on whether these behave as “docile” or “unruly” objects. Drawing on different empirical examples, the article explores how docile and unruly objects shape organizational dynamics within the museum and, through them, the wider processes of institutional and cultural reproduction. The article uses this empirical example to highlight the importance of developing a new “material sensibility” that restores heuristic dignity to the material within cultural sociology. (shrink)

In the last few years, biologists and computer scientists have claimed that the introduction of data science techniques in molecular biology has changed the characteristics and the aims of typical outputs (i.e. models) of such a discipline. In this paper we will critically examine this claim. First, we identify the received view on models and their aims in molecular biology. Models in molecular biology are mechanistic and explanatory. Next, we identify the scope and aims of data science (machine learning in (...) particular). These lie mainly in the creation of predictive models which performances increase as data set increases. Next, we will identify a tradeoff between predictive and explanatory performances by comparing the features of mechanistic and predictive models. Finally, we show how this a priori analysis of machine learning and mechanistic research applies to actual biological practice. This will be done by analyzing the publications of a consortium—The Cancer Genome Atlas—which stands at the forefront in integrating data science and molecular biology. The result will be that biologists have to deal with the tradeoff between explaining and predicting that we have identified, and hence the explanatory force of the ‘new’ biology is substantially diminished if compared to the ‘old’ biology. However, this aspect also emphasizes the existence of other research goals which make predictive force independent from explanation. (shrink)

Deep learning is a kind of machine learning which happens in a certain type of artificial neural networks called deep networks. Artificial deep networks, which exhibit many similarities with biological ones, have consistently shown human-like performance in many intelligent tasks. This poses the question whether this performance is caused by such similarities. After reviewing the structure and learning processes of artificial and biological neural networks, we outline two important reasons for the success of deep learning, namely the extraction of successively (...) higher level features and the multiple layer structure, which are closely related to each other. Then some indications about the framing of this heated debate are given. After that, an assessment of the value of artificial deep networks as models of the human brain is given from the similarity perspective of model representation. Finally, a new version of computational functionalism is proposed which addresses the specificity of deep neural computation better than classic, program based computational functionalism. (shrink)

The spirit in you -- We are one -- The Druid path -- Rebirth into spirit -- Starting your journey -- Becoming a bard -- Mastering awareness -- Ritual and ceremony -- Spiritual cleansing -- Sacred creativity -- The power of manifestation -- The freedom of transformation -- Magical adventures -- The spirit of Gaia -- The four elements -- Earth -- Water -- Air -- Fire -- Spirit dancer -- The continuing life of Ivan Mcbeth.

Background: Patients at the end-of-life and their families experience a strong emotional impact. The wellbeing of the patient at the end-of-life and their family caregiver are related. Aim: to explore the elements related with the emotional wellbeing of patients with and without cognitive impairment at the end-of-life and that of their primary family caregivers. Design: Cross- sectional study. Participants: data was collected from 202 patients at the end of life with different diagnosis (COPD, cancer and frail elderly) as well as (...) from their respective 202 primary family caregivers. Results: Structural equation models indicated that the emotional state of the patients was best predicted by their functional independence and the burden of their family caregivers. At the same time, the emotional state of the primary family caregiver was predicted by their burden and not by the cognitive state or the functional independence of the patient. Nevertheless, the burden of the family caregiver, which is the only variable predicting both the emotional state of the patient and that of the caregiver, was directly related with the functional independence of the patient and indirectly with the patient’s cognitive state. Conclusions: The burden of the family caregiver stands out as a key factor in the reduction of the emotional distress of patients at the end-of-life –whether or not they present significant cognitive impairment- and that of their family caregivers. (shrink)

Издание содержит: из истории Химкинского леса; Химкинский лес как памятник природы; выбор трассы; начало гражданского сопротивления; рождение "Экообороны" и многое другое. Для широкого круга читателей.

Sulla base di una straordinaria analisi dei problemi deontologici riconducibili alla crisi della professione medica, Ivan Cavicchi e un gruppo di lavoro multidisciplinare – promosso e organizzato dall’Ordine dei Medici Chirurghi e Odontoiatri della Provincia Autonoma di Trento, in collaborazione con il programma FBK per la salute della Fondazione Bruno Kessler e il gruppo di Biodiritto del l’Università di Trento – hanno rielaborato le basi concettuali della tradizionale deontologia medica per mettere in condizione gli Ordini dei Medici di riformare (...) il proprio codice deontologico. Si tratta di una vera e propria «rivoluzione» destinata a modificare nei prossimi anni la deontologia nel nostro Paese, a influenzare la redazione dei futuri codici di tutte le professioni medico-sanitarie, ma soprattutto a cambiare radicalmente i rapporti tra medici e cittadini, tra professione e società, tra medicina ed economia. Assumendo il malato come «archè», la proposta di rielaborazione cambia postulati, presupposti, linguaggi, concetti, soluzioni e obiettivi, affrontando problematiche usualmente ignorate dalla deontologia convenzionale. Lo scopo di fondo è definire una nuova figura di medico capace di recuperare il rapporto fiduciario con i malati e con la società e di farsi carico dei problemi di sostenibilità economica che ormai da anni gravano su tutti i sistemi di tutela sanitaria. (shrink)

We tend to associate Henry David Thoreau with the renunciation of material possessions, projecting onto him our fantasies of a life lived beyond the modern obsession with "things." But Thoreau's practical philosophy held a special place for tools, artworks, Native American artifacts, and a variety of natural phenomena. In Mindprints, Ivan Gaskell focuses on the material items that were important to Thoreau, using them to reveal Thoreau's unique and profound aesthetics of everyday life and the environment. "Mindprint" was Thoreau's (...) term for a material object that has captured the presence of its maker and first user. Thoreau applied the term to ancient stone artifacts and other objects in an effort to capture something of the relationship between material items and humans. For Thoreau, these relationships contribute to the creation of "worlds." By looking at Thoreau's engagement with material worlds through his writings and his practical philosophical experiment at Walden Pond--but also, importantly, via his work as a designer of improved pencils, as a house builder, as a land surveyor, and as a collector--Gaskell reveals the aesthetics at the heart of Thoreau's thinking. (shrink)

Toda imagen es un modo de mirar, de descubrir la realidad. La mirada del pintor o la del fotógrafo guarda para el futuro una parte, infinitesimal, del espacio. Solamente queda para la posteridad lo que ellos quieren que perdure. Las imágenes hablaron durante siglos acerca del pasado. Las pinturas retrataban las costumbres de la sociedad. La autoridad consagrada por el orden imperante resultaba reforzada por el arte canónico. Después de la invención de la fotografía las imágenes de guerra dejaron de (...) ser solamente un registro de gestas épicas. Este artículo busca presentar una perspectiva semiótica para leer una pintura sobre la guerra como un texto para lo cual propone cotejarla con una foto sobre el mismo tema.For a long time images spoke to society about the past. Paintings described different social groups' ways of life or moments like Amien's siege. Since the invention of photography the images of war didn't stand only for epic romances: photo could show the bare truth. The author proposes to look at a painting about the Paraguayan war as a text, trought a semiotic aproach. This allow us to know painter's cultural context and his ideological views. To make this possible, the author compares the painting with a photo on the same topic. (shrink)

How to Do Things with Myths: A Performative Theory of Myths and How We Got There assembles a radically updated collection of the author's oft-cited publications on myth. Together, they tell how theories of myth have changed and led to a novel "performative" theory of myth.