In this note, the problem of tracking random references and rejecting random perturbations in a quadrotor, both generated by an auxiliary system named exosystem, is solved by extending the deterministic tracking problem to the area of stochastic processes. Besides, it is considered that only a part of the state vector of the quadrotor is available through measurements. As a consequence, the state vector of the plant must be estimated in order to close the control loop. On this basis, a controller (...) to track random references and to reject random perturbations is developed by combining a Kalman filter to estimate the references and perturbations of an exosystem and an observer to estimate the states of a quadrotor. Besides, to obtain a more practical controller, the analysis is carried out in discrete time. Numerical simulations are used in a quadrotor to confirm the validity and effectiveness of the proposed control. (shrink)

O Tratado da Felicidade (ou Tratado da Bem-Aventurança), escrito por Tomás de Aquino como parte de sua Suma de Teologia, procura determinar qual é o fim último da vida humana, ou seja, o bem supremo da vida humana, e quais são os outros bens que não podem ser isso de nenhum modo. Tomás mostra conhecer uma divisão tríplice dos bens do homem, que inclui os bens exteriores, os bens do corpo e os bens da alma. A estes Tomás acrescenta um (...) tipo de bem que podemos chamar de “intermediário”, na medida em que se situa acima do homem e abaixo de Deus, e consiste no universo e nos anjos. Certamente, Tomás se refere também a Deus. No entanto, há mais um tipo de bem que Tomás menciona neste Tratado. É o bem em comum, ou bem em geral. Neste artigo, procurarei mostrar como Tomás de Aquino trata desses seis tipos de bens no Tratado da Felicidade, e indicarei se esse tratamento confirma ou não algumas teses de alguns estudiosos de Tomás de Aquino, como, por exemplo, a tese de que o homem não tem nenhum fim último natural. (shrink)

Visto em perspectiva histórica, o ensinamento de Santo Tomás sobre o desejo natural a Deus foi apenas um interlúdio na tradição agostiniana-escotista. Aqueles que continuam a falar da doutrina dele sobre um desejo natural pela visão "beatífica" dão testemunho da influência viva daquela tradição hoje. Embora ele não possa ser enquadrado na série que liga Santo Agostinho, São Boaventura, Duns Scotus e Domingo de Soto nessa questão, a posição dele não é menos cristã do que a da tradição com a (...) qual ele rompeu. A posição dele, entretanto, irá continuar a parecer incoerente e até mesmo contraditória, enquanto for colocada nos termos daquela tradição, em vez de nos seus próprios termos. (shrink)

Neste artigo, pretendo expor o texto de um capítulo do livro Scholasticism and Politics, do filósofo francês Jacques Maritain (1882-1973). Este livro está em inglês e nunca foi traduzido ao português. O capítulo visado se chama “Christianity and earthly civilizations” - “Cristianismo e civilizações terrenas”. Ele é dividido em quatro seções: 1) A Igreja e o mundo, 2) Civilizações de origem pré-medieval, 3) Civilização Ocidental, e 4) Tentativas de novas civilizações. Farei a tradução ou uma paráfrase do texto, indicando seus (...) principais pontos e as conexões implícitas com outros textos de Maritain. Assim, facilitarei a leitura e a compreensão do sentido imediato do texto por leitores de língua portuguesa, o que é pré-requisito para uma avaliação crítica dele. A filosofia de Maritain é chamada por ele mesmo de filosofia cristã, isto é, uma filosofia que amplia seu escopo para considerar conceitos que são mais próprios da teologia cristã, principalmente no campo da filosofia moral e política. No século XX, Maritain teve muitos adeptos e admiradores brasileiros. (shrink)

The purpose of this study is to examine how faith-led practices in family firms affect organizational stewardship. Current studies highlight the relevance of religious adherence for family businesses, yet provide limited understanding of how this shapes the key traits of these organizations. Drawing on six autobiographies of family business leaders who openly express their adherence to their faith, and adopting an open-systems analysis of these autobiographies, we demonstrate that faith-led values influence organizational and leadership practices. Overall, our study suggests that (...) the influence of religious beliefs in the organizational practices of family businesses have greater repercussions than previously thought. By introducing a faith-led approach to stewardship, we enrich the theoretical discussion around stewardship and the relevance of religion in family business. (shrink)

Este ensaio examina quatro tradições sobre guerra e paz que se desenvolveram na história cristã. São elas: Pacifismo, Guerra Justa, Guerra Total, e Comunidade Mundial. O Pacifismo caracterizou os primeiros cristãos; a Guerra Justa apareceu no fim do quarto século e no quinto século; a Guerra Total, no século 11; e a Comunidade Mundial começou no século 16. Todas as quatro posições continuam hoje e são sustentadas por pessoas que sinceramente se chamam a si mesmas de cristãs.

The present study aims at understanding how Ethica Nicomachea V.6 relates to its preceding chapters, V.1-5. On the one hand, the interpreter wonders for what purpose Aristotle introduces a topic named ‘the civic just’ (to politikon dikaion) in V.6, since V.1-5 treats extensively of matters of justice in the city. On the other hand, the same text posits that there is a certain ‘just without qualification’ (to haplōs dikaion), which may or may not be the civic just itself; compared to (...) the just without qualification, other forms of just are so by similitude (kath’homoiteta). In attempting to clear the confusion around those two points, the present study proposes the following: (1) the civic just is the just without qualification insofar as it is the primordial form of the just, in which only humans who are cumulatively free, equals and self-sufficient have a share; (2) the description of the civic just recapitulates several aspects of the discussions of justice in V.1-5 – the laws, the kinds of equality, rule, the legal suit - because the civic just encompasses all the forms of just (dikaion) related to the virtues of universal justice (V.1) and partial justice (V.2-5); (3) the expression to politikon dikaion is introduced in V.6 in order to contrast everything treated in V.1-5 with the domestic just, to oikonomikon dikaion, mentioned for the first time in V.6; (4) the forms of the domestic just are just only by similitude with the civic just because justice loses density outside the civic sphere, a situation which can be explained by the shortcomings Aristotle ascribes to women, children and slaves in EN V.6 (lack either of freedom or equality or yet self-sufficiency) as well as in Politica I (varying degrees of defective deliberation and virtue). (shrink)

_O Evangelho segundo o Espiritismo_, um dos cinco fundamentais livros espíritas publicados por Allan Kardec, tem papel central na afirmação do espiritismo como parte da religião cristã, algo que é feito também através do amplo trabalho assistencial gratuito realizado pelos espíritas no Brasil. Partindo de análise bibliográfica e pesquisa de campo, o artigo mostra que tal livro espírita compõe uma necessidade de reinterpretação bíblica. O artigo aborda a longa trajetória das interpretações bíblicas e a propagação do estudo do referido livro (...) assim como das práticas religiosas disseminadas a partir dele no âmbito do espiritismo brasileiro, enquanto parte de sua afirmação cristã. (shrink)

O artigo apresenta uma pesquisa qualitativa que relata a organização espacial das fazendas aquícolas no litoral central de Santa Catarina, nas comunidades da Praia de Fora e Enseada de Brito, as quais se encontram no município de Palhoça, pertencentes ao Aglomerado Urbano de Florianópolis. As características de ocupação urbana nas localidades supracitadas remontam ao século XVIII, mantendo as atividades econômicas extrativistas e rurais até a segunda metade do século XX. A partir da década de 1960/1970 verificou-se acelerado processo de construção (...) de casas de veraneio, sobrepujado por uma intensa urbanização com moradores fixos por causa do calçamento da via principal em 2010. A legalização das fazendas marinhas ocorreu nesta mesma época, como parte do “Plano Nacional de Desenvolvimento da Maricultura”, nos estados litorâneos brasileiros com aptidão ao cultivo nas comunidades envolvidas, apesar dos conflitos socioambientais. O município de Palhoça detém a maior produção de mexilhões em Santa Catarina. O marisco é um alimento popular no litoral catarinense e também uma iguaria na gastronomia internacional. A maior ameaça ao setor são os efluentes urbanos e os seus impactos ambientais. A falta de uma associação de produtores, bem como de um planejamento voltado à ocupação territorial de modo controlado e racional, tomando como fim a preservação do ecossistema de interesse, afeta a continuidade e o desenvolvimento econômico da atividade. (shrink)

BackgroundDisorders in different levels of body representation are present in hemiplegic cerebral palsy. However, it remains unclear whether the body image develops from aspects of body schema and body structural description, and how this occurs in children with HCP.Objective and methodsIn a cross-sectional study, we investigated 53 children with HCP and 204 typically developing control children to qualitatively evaluate whether and how body schema and body structural description affect the development of children’s body image and whether this development is delayed (...) through HCP. Graph analysis was used to create a lexical-semantic map of body representation from data of a semantic word fluency task.ResultsResults indicated a similar qualitative pattern of influences of sensorimotor and visuospatial experiences on lexical-semantic knowledge of body parts, with a delayed developmental course in children with HCP compared to TD children.ConclusionThese findings suggest that children’s body image seemed to be influenced by body schema and body structural descriptions as indicated by poorer lexical-semantic knowledge of body parts in children with HCP due to missing physical experiences of the affected body parts. This might imply that “body talk” may beneficially complement physical therapy for children with HCP to promote body image development. (shrink)

Any plausibly just market exchange must balance two conflicting moral considerations: non-worseness (Wertheimer, 1999) and euvoluntariness (true voluntariness; Munger, 2011). We propose an analytical theory of just market exchange that partly resolves this conflict.

In this article we present a notion of “logical perfection”. We first describe through examples a notion oflogical perfectionextracted from the contemporary logical concept of categoricity. Categoricity (in power) has become in the past half century a main driver of ideas in model theory, both mathematically (stability theory may be regarded as a way of approximating categoricity) and philosophically. In the past two decades, categoricity notions have started to overlap with more classical notions of robustness and smoothness. These have been (...) crucial in various parts of mathematics since the nineteenth century. We postulate and present the category of logical perfection. We draw on various notions of perfection from mathematics of the 19th and 20th centuries and then trace the relation to the concept of categoricity in power as a logical notion of what a “mathematically perfect” structure is. (shrink)

True ecotourism requires us to regain an understanding of the inextricable links between the habitats of a region, including its inhabitants, and their habits. With this systemic approach that integrates economic, ecological, and ethical dimensions, we define ecotourism as “an invitation to a journey (‘tour’) to appreciate and share the ‘homes’ (oikos) of diverse human and non-human inhabitants, their singular habits and habitats.” Today, mass nature tourism often denies theselinks and is generating biocultural homogenization, socio-ecological degradation, and marked distributive injustices (...) in iconic places, such as Costa Rica, the Galapagos and Cape Horn. In order to implement genuine ecotourism in Latin America and elsewhere, it is imperative to overcome marketing ambiguities, and pay close attention to local autonomy and biocultural diversity. (shrink)

This paper examines folk theories of algorithmic recommendations on Spotify in order to make visible the cultural specificities of data assemblages in the global South. The study was conducted in Costa Rica and draws on triangulated data from 30 interviews, 4 focus groups with 22 users, and the study of “rich pictures” made by individuals to graphically represent their understanding of algorithmic recommendations. We found two main folk theories: one that personifies Spotify and another one that envisions it as a (...) system full of resources. Whereas the first theory emphasizes local conceptions of social relations to make sense of algorithms, the second one stresses the role of algorithms in providing a global experience of music and technology. We analyze why people espouse either one of these theories and how these theories provide users with resources to enact different modalities of power and resistance in relation to recommendation algorithms. We argue that folk theories thus offer a productive way to broaden understanding of what agency means in relation to algorithms. (shrink)

ResumoTrata-se de resenha da tradução inglesa da Ethica Eudemia, realizada por Anthony Kenny e publicada em 2011. Contém uma perspectiva geral da tradução (caracterização e contexto), bem como aspectos específicos, sem pretensão de análise exaustiva: a tradução de certos termos centrais à ética aristotélica, e trechos pontuais nos quais o argumento central do tratado se desenvolve, aquele a respeito da vida feliz. AbstractThe paper reviews the english translation of the Eudemian Ethics made by Anthony Kenny, which was published in 2011. (...) The Review presents a general overview of the translation (its context and general traits), as well as a non exaustive analysis of some aspects of the work: the translation of some key concepts of aristotelian ethics, and of some phrases containing the main argument of the treatise, that concerning the happy life. (shrink)

This paper is a translation to Portuguese of the ninth chapter of Alvin Plantinga’s 1974 book The Nature of Necessity, in which the famous freewill defense for the problem of evil is presented in its most complete form. By making use of the theory of possible worlds developed in the previous chapters of the book, Plantinga engages in a recognizably successful attempt to show that the existence of evil is not inconsistent with the existence of an omnipotent, omnibenevolent and omniscient (...) being. In addition to the translation, we provide a brief introduction to Plantinga’s free-will defense and to the debate about God and evil in the analytic philosophy of religion. Key words: problem of evil, free-will defense, possible worlds, analytic philosophy of religion. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Narrative Symposium:Conflicting Interests in MedicineLaura Jean Bierut, Sal Cruz-Flores, Laura E. Hodges, Anthony A. Mikulec, Govind K. Nagaldinne, Erine L. Bakanas, John F. Peppin, Joel S. Perlmutter, William H. Seitz Jr., Edward Diao, Andre N. Sofair, and David M. Zientek• To Recruit or Not to Recruit for a Clinical Trial• An Unexpected Lesson• Am I on call for the entire Midwest?• Why is Medicare Wasting Away?• The Downside (...) of the Informed Consent Juggernaut• Expert Testimony at the Food and Drug Administration: Who Wants the Truth?• Crossroads: The Intersection of Personal, Professional Society, and Industry Relationships• A Change of Heart• The Evolution of Conflicts of Interest in a New Subspecialty: A Case Study of the Development of Interventional CardiologyCopyright © 2011 The Johns Hopkins University Press... (shrink)

Esta investigación reconoce la paz como un escenario en el que el conflicto está presente y en el que las diferentes posiciones deben aprender a convivir. Para ello, se plantea la pregunta: ¿Cómo se han transformado las prácticas pedagógicas de docentes y profesores en los últimos 20 años para la reconstrucción del tejido social en territorios afectados por el conflicto armado en Colombia? Estas prácticas buscan mediar las relaciones entre los individuos y sus tensiones, enseñando resiliencia y la capacidad de (...) mitigar los efectos negativos que las expresiones de violencia pueden tener en el desarrollo de los jóvenes que viven en este contexto. (shrink)

La donación y el trasplante de órganos representan avances médicos cruciales, pero plantean importantes desafíos jurídicos y bioéticos. Este artículo examina la interacción entre el derecho y la bioética en la regulación de estas prácticas, abordando el problema de cómo garantizar un acceso justo y ético a los órganos, respetando la autonomía y dignidad humana. El objetivo es analizar los marcos legales y los principios bioéticos que subyacen a la donación y el trasplante, destacando su impacto en la práctica médica (...) y en la sociedad. Se utilizó una metodología basada en revisión bibliográfica, centrada en textos normativos, doctrinas bioéticas y casos relevantes. Los resultados evidencian la necesidad de fortalecer los marcos legales para equilibrar la equidad, el altruismo y la protección de los derechos individuales. Concluimos que un enfoque integral y multidisciplinario es esencial para abordar los desafíos actuales y futuros en esta área compleja y sensible. (shrink)

El objetivo de este artículo es estudiar el Curso de Xavier Zubiri de 1975 Reflexiones sobre lo estético a la luz de la “noología”, horizonte de pensamiento que el autor español dejó planteado al final de su vida. Allí lo estético cobra otra dimensión en su estudio al vincular las tres esferas de la noología: la aprehensión primordial de la realidad, el logos sentiente y la razón sentiente. A partir de estas tres categorías cardinales, vemos lo estético en un primer (...) nivel de la aprehensión misma, otro segundo nivel en donde lo estético se diseña y son las artes las que expresan lo fruitivo de la realidad y por último, un tercer nivel que son las obras de arte propiamente dichas. (shrink)

Assume que o estudo da produção científica pode oferecer entendimento sobre os temas abordados, tendências da comunidade, autores mais citados, indicação de maturação da área e consolidação ou silenciamento da área. Tem como objetivo mapear como a Filosofia está contida na Ciência da Informação brasileira. Coleta os dados dos artigos científicos publicados entre 1972 e 2018 na Coleção de Publicações Brasileiras em Ciência da Informação - BRAPCI. Analisa uma amostra de 300 artigos e deriva algumas questões descritivas. Conclui que a (...) Ciência da Informação brasileira mantém um discurso filosófico ocidental canônico com uso equilibrado de autores e principais correntes filosóficas. Não aponta ao uso de pensadores e temas periféricos. Propõe a continuidade desse tipo de pesquisa para incentivar debates sobre uma relação interdisciplinar saudável entre Ciência da Informação e Filosofia. (shrink)

RESUMEN Introducción: Son escasos los servicios en salud mental dentro del contexto escolar que permitan una integración intersectorial para superar la brecha de falta de asistencia en salud mental en la población infanto - juvenil, aun cuando, es en la escuela donde se detectan mayoritariamente los problemas de salud mental. Objetivo: Comentar el uso de servicios de salud mental en el ambiente escolar en relación con los trastornos mentales y trastornos subumbrales. Método: El presente resultado se obtiene a partir del (...) “Estudio de Prevalencia Comunitaria de Trastornos Psiquiátricos y Utilización de Servicios de la Población Infanto-Juvenil Chilena”. La muestra estuvo representada por sujetos entre 4 y 18 años. La información sobre el uso de servicio de salud mental se recogió con una versión modificada de la Escala Service Assesment for Children and Adolescent. Se realizó un modelo de regresión logística para analizar cinco áreas del uso de servicios en el ambiente escolar, las cuales se correlacionaron con diagnósticos de trastorno mentales y trastorno subumbral de ansiedad, disruptivo y depresión en el último año. Resultados: Las escuelas se enfrentan a grandes desafíos sobre cómo proporcionar apoyo efectivo de salud mental para los estudiantes, que presentan algún tipo de trastorno mental o trastorno subumbral. Discussión: Las instituciones educativas requieren ser visualizadas como una entidad que podría satisfacer las necesidades que se advierten de manera urgente en atención, prevención y promoción de problemas mentales en la población infanto- juvenil, si se vinculan de forma más directa con los servicios de salud mental. ABSTRACT Introduction: Mental health services are scarce within the school context that allow intersectoral integration to overcome the gap in mental health care in the child and adolescent population, being the school where mental health problems are mostly detected. Objective: to know the use of mental health services in the school environment in relation to mental disorders and subthreshold disorders. Method: The present secondary study is carried out from the "Study of Community Prevalence of Psychiatric Disorders and Utilization of Services of the Chilean Child-Youth Population". The sample was represented by subjects between 4 and 18 years old. Information on the use of mental health service was collected with a modified version of the Service Assessment Scale for Children and Adolescents. A logistic regression model was performed to analyze five areas of the use of services in the school environment, which were correlated with diagnoses of mental disorders and subthreshold anxiety, disruptive and depression disorder in the last year. Results: Schools face great challenges on how to provide effective mental health support for students, who present some type of mental disorder or subthreshold disorder. Discusion: Educational institutions need to be visualized as an entity that could meet the needs that are urgently noticed in attention, prevention and promotion of mental problems in the child and adolescent population, if it is linked more directly with health services. (shrink)

Pulmonary rehabilitation has demonstrated patients’ physiological and psychosocial improvements, symptoms reduction and health-economic benefits whilst enhances the ability of the whole family to adjust to illness. However, PR remains highly inaccessible due to lack of awareness of its benefits, poor referral and availability mostly in hospitals. Novel models of PR delivery are needed to enhance its implementation while maintaining cost-efficiency. We aim to implement an innovative community-based PR programme and assess its cost-benefit. A 12-week community-based PR will be implemented in (...) primary healthcare centres where programmes are not available. Healthcare professionals will be trained. 73 patients with CRD and their caregivers will compose the experimental group. The control group will include dyads age- and disease-matched willing to collaborate in data collection but not in PR. Patients/family-centred outcomes will be dyspnoea, fatigue, cough and sputum, impact of the disease, emotional state, number of exacerbations, healthcare utilisation, health-related quality of life and family adaptability/cohesion. Other clinical outcomes will be peripheral and respiratory muscle strength, muscle thickness and cross sectional area, exercise capacity, balance and physical activity. Data will be collected at baseline, at 12 weeks, at 3- and 6-months post-PR. Changes in the outcome measures will be compared between groups, after multivariate adjustment for possible confounders, and effect sizes will be calculated. A cost-benefit analysis will be conducted. This study will enhance patients access to PR, by training healthcare professionals in the local primary healthcare centres to conduct such programmes and actively involving caregivers. The cost-benefit analysis of this intervention will provide an evidence-based insight into the economic benefit of community-based PR in chronic respiratory diseases. The trial was registered in the ClinicalTrials. gov U.S. National Library of Medicine, on 10th January, 2019. (shrink)

The use of Requirements at Runtime (RRT) is an emerging research area. Many methods and frameworks that make use of requirements models during software execution can be found in the literature. How...

Brain–machine interfaces combining visual, auditory, and tactile feedback have been previously used to generate embodiment experiences during spinal cord injury rehabilitation. It is not known if adding temperature to these modalities can result in discomfort with embodiment experiences. Here, comfort levels with the embodiment experiences were investigated in an intervention that required a chronic pain SCI patient to generate lower limb motor imagery commands in an immersive environment combining visual, auditory, tactile, and thermal feedback. Assessments were made pre-/ post-, throughout (...) the intervention, and at 7 weeks follow up. Overall, high levels of embodiment in the adapted three-domain scale of embodiment were found throughout the sessions. No significant adverse effects of VR were reported. Although sessions induced only a modest reduction in pain levels, an overall reduction occurred in all pain scales at follow up. A high degree of comfort in the comfort scale for the thermal-tactile sleeve, in both the thermal and tactile feedback components of the sleeve was reported. This study supports the feasibility of combining multimodal stimulation involving visual, auditory, tactile, and thermal feedback to generate embodiment experiences in neurorehabilitation programs. (shrink)

Livro-texto de introdução à lógica, com (mais do que) pitadas de filosofia da lógica, produzido como uma versão revista e ampliada do livro Forallx: Calgary. Trata-se da versão de 13 de outubro de 2022. Comentários, críticas, correções e sugestões são muito bem-vindos.

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)

La Corporación Universitaria Minuto de Dios, en su misión de aportar a la transformación de las realidades sociales, plantea en su enfoque educativo la estrategia que procura articular la teoría con la práctica —praxeología—. Por ello, la investigación formativa es un planteamiento que viabiliza que tanto estudiantes y docentes vivan y sientan realmente el conocimiento y que, a su vez, articulen e incidan en las comunidades. A este respecto, presentaremos una experiencia que da cuenta del enfoque praxeológico. La intención de (...) Uniminuto es, entonces, que el conocimiento transforme y genere reflexiones y acciones de cara a las necesidades de los contextos. La universidad de hoy no puede ni debe sustraerse a una mirada sobre el territorio, sus problemáticas y potencialidades, por tanto, estudiantes y docentes deben constituirse en conectores de espacios académicos con la realidad social. (shrink)