The theory of rough sets starts with the notion of an approximation space , which is a pair ( U , R ), U being the domain of discourse, and R an equivalence relation on U . R is taken to represent the knowledge base of an agent, and the induced partition reflects a granularity of U that is the result of a lack of complete information about the objects in U . The focus then is on approximations of concepts (...) on the domain, in the context of the granularity. The present article studies the theory in the situation where information is obtained from different sources. The notion of approximation space is extended to define a multiple-source approximation system with distributed knowledge base , which is a tuple , where N is a set of sources and P ranges over all finite subsets of N . Each R P is an equivalence relation on U satisfying some additional conditions, representing the knowledge base of the group P of sources. Thus each finite group of sources and hence individual source perceives the same domain differently (depending on what information the group/individual source has about the domain), and the same concept may then have approximations that differ with the groups. In order to express the notions and properties related with rough set theory in this multiple-source situation, a quantified modal logic LMSAS D is proposed. In LMSAS D , quantification ranges over modalities, making it different from modal predicate logic and modal logic with propositional quantifiers. Some fragments of LMSAS D are discussed and it is shown that the modal system KTB is embedded in LMSAS D . The epistemic logic is also embedded in LMSAS D , and cannot replace the latter to serve our purpose. The relationship of LMSAS D with first and second-order logics is presented. Issues of expressibility, axiomatization and decidability are addressed. (shrink)

This is a study of the nature of time. In it, redeploying an argument first presented by McTaggart, the author argues that although time itself is real, tense is not. He accounts for the appearance of the reality of tense - our sense of the passage of time, and the fact that our experience occurs in the present - by showing how time is indispensable as a condition of action. Time itself is further analysed, and Dr Mellor gives answers to (...) most of the metaphysical questions it provokes, concerning the relation of time to space, the dissection of time, and its relation to change and causation. (shrink)

En los manuscritos de la novela Trento, de Leónidas Lamborghini, los comentarios sobre el espectador evidencian la fuerza que adquiere la dimensión teatral y narrativa en toda su obra, no solo en cuanto a técnicas tomadas prestadas de lo dramático sino sobre todo en cuanto a las consideraciones con respecto a los géneros y sus bordes. La organización del Fondo Lamborghini ha permitido un exhaustivo análisis de los aspectos que comparten sus obras narrativas con los “textos dramáticos” de Trentoen cuanto (...) a didascalias o préstamos de formatos escénicosy, sobre todo, de la concepción de espectador/lector presente en algunas de sus obras. Una edición genética basada en la búsqueda de los itinerarios que van y vienen a través de las fronteras genéricas entre novela y teatro presenta aspectos de interés para pensar no solo esta particular obra de Leónidas Lamborghini sino también todo su trabajo poético y narrativo, dado que los procedimientos y trabajos formales de reescritura son persistentes a lo largo de su creación. (shrink)

Karl Popper postula que no puede haber una teoría científica del desarrollo histórico que sirva de base para la predicción. Para mejorar la sociedad es necesario recurrir a la ingeniería social gradual, que busca introducir cambios tentativos, en sí mismos valiosos, al margen de que exista o no un plan general. Si no se obtiene el resultado esperado, habrá oportunidad de rectificar. El progreso gradual, la necesidad de un equilibrio de fuerzas bajo el poder del Estado, y la proporción entre (...) Estado y sociedad son vitales para la conservación de la libertad. La base teórico-social se ilustra con el ejemplo de un país imaginado, en el cual luego de un comienzo promisorio, que parecía dirigido a la construcción de una sociedad más justa, se abandonó el gradualismo, surgieron las ilusiones utópicas y terminó por apartarse de toda planificación. Palabras clave: Estado; falsacionismo; gradualismo; historicismo; ingeniería social; libertad; marxismo; planificación; sociedad; utopía. Popper and freedom. Once upon a time there was a country that went off courseKarl Popper argues that there can be no scientific theory of historical development on which historical prediction might be grounded. In order to improve society it is necessary to resort to gradual social engineering, which seeks to bring about tentative changes, valuable in themselves, regardless of whether or not there exists a general plan. If one does not reach the expected result, there will be room for rectification. Gradual progress, the need for a balance of the forces under the State’s power, and the balance between State and society are vital for the preservation of freedom. The social-theoretical basis is illustrated with the example of an imaginary country, which after a promising start -seemingly aimed at building a more just society-, simply gave up gradualism, utopian illusions emerged, and finally all planning was abandoned. Keywords: State; falsationism; gradualism; historicism; social engineering; freedom; marxism; planning; society; utopia. (shrink)

Organ donation after a circulatory determination of death is possible in selected patients where consent is given to support donation and the patient has been legally declared dead by two doctors. The National Health Act (61 of 2003) and regulations provide strict controls for the certification of death and the donation of organs and tissues after death. Although the National Health Act expressly recognises that brain death is death, it does not prescribe the medical standards of testing for the determination (...) of brain death (neurological determination of death), circulatory death (circulatory determination of death) or for determination of death based on somatic criteria. However, in all cases of organ donation, including after circulatory death, the National Health Act mandates that two doctors certify the death, with one doctor possessing more than 5 years of experience. Additionally, both doctors must be independent from the transplant team. The standard for such determination, as for brain death, aligns with accepted medical standards. The Critical Care Society of Southern Africa has published South African (SA) Guidelines on Death Determination that outline rigorous standards for death determination in hospital settings by either a neurological or circulatory method. Legislation and the Health Professions Council of SA’s (HPCSA) professional guidance direct clinicians on obtaining informed consent for donation either from the patient or in cases of incapacity from their surrogate decision maker. Collectively, the legislation, regulations and professional guidelines in SA provide a robust ethical framework that supports organ donation after circulatory death. (shrink)

Word learning is basic to foreign language acquisition, however time consuming and not always successful. Empirical studies have shown that traditional (visual) word learning can be enhanced by gestures. The gesture benefit has been attributed to depth of encoding. Gestures can lead to depth of encoding because they trigger semantic processing and sensorimotor enrichment of the novel word. However, the neural underpinning of depth of encoding is still unclear. Here, we combined an fMRI and a behavioral study to investigate word (...) encoding online. In the scanner, participants encoded 30 novel words of an artificial language created for experimental purposes and their translation into the subjects’ native language. Participants encoded the words three times visually, audiovisually, and by additionally observing semantically related gestures performed by an actress. Hemodynamic activity during word encoding revealed the recruitment of cortical areas involved in stimulus processing. In this study, depth of encoding can be spelt out in terms of sensorimotor brain networks that grow larger the more sensory modalities are linked to the novel word. Word retention outside the scanner documented a positive effect of gestures in a free recall test in the short-term. (shrink)

a elaboração de uma ontologia fenomenológica era uma possibilidade inscrita no próprio projeto filosófico husserliano. Em que sentido, no entanto, o espírito da máxima da ?volta às coisas mesmas? serviu de inspiração ao retorno à questão do ser? Em que medida as elaborações ontológicas que se atribuíram o título de fenomenológicas permaneceram fiéis ao espírito geral e às diretrizes formais do pensamento de Husserl? É na tentativa de responder a essas questões que nos propomos examinar a posição especial de Heidegger (...) face ao problema da articulação da ontologia com a fenomenologia. Nossa preferência é ditada pela própria originalidade do emprego da fenomenologia, no autor de Ser e Tempo. O exame do sentido que assume a fenomenologia enquanto ontologia da compreensão, cujo instrumento é a hermenêutica da existência fáctica do homem, exige previamente o delineamento do projeto filosófico fundamental heideggeriano. (shrink)

1. Rough set theory, introduced by Pawlak, is based on the concept of approximation space (Pawlak, 1991), which is defined as a tuple (W,R), where R is an equivalence relation on the non-empty set...

paradigma estabelecido pela dualidade de “palavras-princípio” Eu-Tu e Eu-Isso, a intuição axial do pensamento dialógico de Martin Buber se constitui como pedra angular de sua obra sobre religião: a dupla disposição de um homem-Eu e de Deus-Tu fundada num encontro recíproco. A fé – Glauben - é a resposta do homem a Deus, no encontro no qual Ele se mostra pela Palavra como Tu Eterno na revelação como mistério de Presença. Buber propõe duas maneiras opostas de crer: de um lado, (...) a Emunah, como confiança pessoal ou abandono confiante de um povo, Israel, que se deixa guiar por Deus e, de outro lado, a Pistis, a qual, segundo o apóstolo Paulo, é a adesão individual a um conteúdo de fé, de um credo tido por verdadeiro. Os dois modos de crer, embora haja diversidade nos conteúdos de fé, podem ser apreendidos a partir de experiências vividas: tenho confiança em alguém e reconheço um fato como verdadeiro. Para tais experiências, não se consegue “dar razão” ou justificá-las. O objetivo desta comunicação é apresentar, de maneira sucinta, o pensamento de Martin Buber sobre essa questão que pode ilustrar o seu entendimento das relações entre o Cristianismo helenista e o Judaísmo. Palavras-chave: Emunah ; Pistis ; Fé; Martin Buber. (shrink)

O presente artigo apresenta uma pesquisa sobre o que a instituição católica entende por piedade popular, tendo como base o Diretório de Piedade Popular e Liturgia, para em seguida, abordar o tema piedade popular mariana, com suas características próprias, como sentimento via cordis, exuberância, expressividade, vitalidade e caráter maravilhoso, e analisar a postura do catolicismo oficial, diante dessa maneira de vivenciar a fé. Posto isso, pesquisou-se o culto mariano, tendo como horizonte a exortação apostólica Marialis Cultus, de Paulo VI, que (...) contém orientações, como bíblica, litúrgica, sensibilidade ecumênica e antropológica, para promover uma genuína reforma da veneração a Maria. (shrink)

Não importa nossa crença ou descrença, que nosso anseio à sabedoria tome a forma de uma meditação sobre a vida ou uma meditação sobre a morte, quando esta irrompe como um ladrão, sem avisar o dia e a hora, não nos é possível frear um sentimento de estupor e de tristeza. A morte do Rubem, tirado do afeto dos seus, excluído da amizade de seus colegas, é daquelas que provocam a incompreensão diante da injustiça do destino.

Partiendo de las deficiencias detectadas en la realización de la discusión diagnóstica por los estudiantes de Medicina, determinadas en un estudio previo realizado en la Facultad de Ciencias Médicas de Camagüey, se diseñó una metodología para perfeccionar la realización de la discusión diagnóstica en la carrera de Medicina, en la cual se incluyeron un sistema de tareas y las acciones que permiten alcanzar el desarrollo de las habilidades relacionadas con la misma. También se reflejaron las formas organizativas de enseñanza y (...) las actividades de educación en el trabajo en las que se deben abordar los elementos de la metodología, así como la propuesta de criterios evaluativos para estas habilidades, y otros aspectos como la ejecución y evaluación de la metodología. Se consideró que esta propuesta metodológica puede constituir una herramienta útil para los profesores en la conducción del proceso de adquisición de las habilidades de razonamiento clínico en los estudiantes. On the basis of the deficiencies identified in the realization of the diagnostic discussion by medical students, which were determined in a previous study carried out in the Faculty of medical sciences of Camagüey, a methodology was designed to improve the realization of the diagnostic discussion in Medicine degree, which included a set of tasks and actions that allow the development of skills related to it. Also, the teaching organization forms and education activities at work that must deal with methodology elements were stated, as well as the proposal of assessment criteria for these skills and other aspects like assessment and implementation of methodology. It was considered that this methodology can be used as a useful tool for teachers as guides in the process of students´ acquirement of clinical reasoning skills. (shrink)

Se realizó un estudio descriptivo transversal en la Facultad de Ciencias Médicas de Camagüey en el período comprendido entre septiembre del 2011 y marzo del 2012 con el objetivo de caracterizar el desarrollo de las habilidades de razonamiento clínico en los estudiantes de la carrera de Medicina. La muestra fue de 14 profesores de la disciplina de Medicina Interna y 110 estudiantes que terminaron recientemente el tercer año de la carrera de Medicina. La información fue recogida a través de una (...) entrevista a profundidad a informantes claves, un grupo focal con profesores del colectivo de la asignatura de Medicina Interna; además se encuestaron a través de un cuestionario con preguntas mixtas a la muestra de estudiantes seleccionada. Los profesores y alumnos coinciden en que hay deficiencias en el aprovechamiento del fondo de tiempo en la educación en el trabajo para el desarrollo de las habilidades de razonamiento clínico, así como insuficiencias en la orientación y evaluación de la actividad. A transverse descriptive study was conducted at the Faculty of Medical Sciences of Camagüey in the period between September 2011 and March 2012 with the aim of characterizing the development of the skills of clinical reasoning in medical students. The sample was composed by 14 teachers in the disciplines of Internal Medicine and 110 students who recently completed the third year of Medicine. The information was collected through an in-depth interview with key informants, a focus group with professors of the course of Internal Medicine;the sample of students selected was alsosurveyed through a questionnaire with mixed questions. Teachers and students agree that there are deficiencies in the use of the amount of time in education at work for the development of skills in clinical reasoning, as well as inadequacies in guidance and evaluation of the activity. (shrink)

Se realizó revisión bibliográfica sobre la adquisición de las habilidades de razonamiento clínico en los estudiantes de medicina y sus principales deficiencias, los principios didácticos que rigen la actividad y el desarrollo de las habilidades en la Educación General, así como su aplicación en el proceso de enseñanza- aprendizaje en la carrera de Medicina, concretados en cómo realizar el enfoque de dicho proceso en los diferentes momentos de la actividad: orientación, ejecución y control. A bibliographical revision on Medicine students acquisition (...) of clinical reasoning skills and its main shortcomings, the didactic principles that rule the activity and development of skills in General education as well as its implementation in the teaching learning process in medicine, focused on how to approach to such a process in the different stages of the activity: guidance, implementation and control, was carried out. (shrink)

Abstractabstract:This article examines Harold Ramis’s 2005 noir comedy The Ice Harvest as the critically dystopian counter-panel to his beloved 1993 film Groundhog Day, a film frequently discussed within the paradigm of utopia. While starkly different in genre, tone, and reception, the two films comprise a dialectical dyad that registers the historical transition from the utopian cultural effervescence of the early 1990s to the tragic foreclosure of imaginative horizons and the dystopian transformation of economic, political, and social landscapes in the new (...) millennium. In The Ice Harvest, the author argues, this is achieved through a strategic reactivation of film noir as a variant of the critical dystopia. (shrink)