An ordering (≤K) on maximal almost disjoint (MAD) families closely related to destructibility of MAD families by forcing is introduced and studied. It is shown that the order has antichains of size.

We study the Rudin–Keisler pre-order on Fréchet–Urysohn ideals on $\omega $. We solve three open questions posed by S. García-Ferreira and J. E. Rivera-Gómez in the articles [5] and [6] by establishing the following results: •For every AD family $\mathcal {A},$ there is an AD family $\mathcal {B}$ such that $\mathcal {A}^{\perp } <_{{\textsf {RK}}}\mathcal {B}^{\perp }.$ •If $\mathcal {A}$ is a nowhere MAD family of size $\mathfrak {c}$ then there is a nowhere MAD family $\mathcal {B}$ such that (...) $\mathcal {I}\left $ and $\mathcal {I}\left $ are Rudin–Keisler incomparable.•There is a family $\left \{ \mathcal {B}_{\alpha }\mid \alpha \in \mathfrak {c}\right \} $ of nowhere MAD families such that if $\alpha \neq \beta $, then $\mathcal {I}\left $ and $\mathcal {I}\left $ are Rudin–Keisler incomparable.Here $\mathcal {I}$ denotes the ideal generated by an AD family $\mathcal {A}$.In the context of hyperspaces with the Vietoris topology, for a Fréchet–Urysohn-filter $\mathcal {F}$ we let $\mathcal {S}_{c}\left \right ) $ be the hyperspace of nontrivial convergent sequences of the space consisting of $\omega $ as discrete subset and only one accumulation point $\mathcal {F}$ whose neighborhoods are the elements of $\mathcal {F}$ together with the singleton $\{\mathcal {F}\}$. For a FU-filter $\mathcal {F}$ we show that the following are equivalent: • $\mathcal {F}$ is a FUF-filter.• $\mathcal {S}_{c}\left \right ) $ is Baire. (shrink)

Autoritarismo, particularismo, fanatismo, catastrofismo, terrorismo, solucionismo... son las caras de una amplia reaccion antiilustrada a la actual crisis de civilizacion. Nuestro presente se ve atrapado en una disyuntiva radical: o condenarse o salvarse. Tras esta alternativa se esconde una rendicion. Temiendo el apocalipsis o anhelando un salvador, sea un lider, un dios o un robot, estamos renunciando a la libertad y a la dignidad de la experiencia humana, estamos renunciando a la emancipacion. La pregunta que late en este ensayo (...) es: por que nos creemos tan facilmente estos relatos? Y la cuestion que se plantea es: como combatir esta fe ciega y sus formas de opresion? Desde este doble interrogante, se apuesta por una nueva ilustracion radical, es decir, por luchar contra las credulidades de nuestro tiempo y contra el temor y el oportunismo que las alimentan."--Amazon.com. (shrink)

El Foro Global de Bioética en Investigación (GFBR por sus siglas en inglés) se reunió el 3 y 4 de noviembre en Buenos Aires, Argentina, con el objetivo de discutir la ética de la investigación con mujeres embarazadas. El GFBR es una plataforma mundial que congrega a actores clave con el objetivo de promover la investigación realizada de manera ética, fortalecer la ética de la investigación en salud, particularmente en países de ingresos bajos y medios, y promover colaboración entre países (...) del norte y del sur.a Los participantes en el GFBR provenientes de Latinoamérica incluyeron a eticistas, investigadores, miembros de comités de ética y representantes de autoridades sanitarias provenientes de Argentina, Brasil, Chile, Colombia, Ecuador, El Salvador, Guatemala, Honduras, Panamá, Perú, Nicaragua y la República Dominicana. Una legítima preocupación por la protección de las mujeres embarazadas y sus embriones o fetos ha llevado a la mayoría de los países de la Región de las Américas a limitar la realización de estudios con mujeres embarazadas exclusivamente a aquellos estudios específicos sobre el embarazo, y a requerir la exclusión sistemática de las mujeres embarazadas o de las mujeres que quedan embarazadas en el curso del estudio. Ciertamente, a lo largo de la historia de la ética de la investigación, se ha creído erróneamente que proteger a una población es sinónimo de excluirla de los estudios. Se sabe ahora que proceder así implica exponer a riesgos mucho mayores a la población que se busca proteger. El embarazo implica cambios fisiológicos sustantivos e impacta profundamente la manera como el cuerpo metaboliza los medicamentos. Sin embargo, por evitar hacer investigación con mujeres embarazadas, no se ha producido la evidencia científica necesaria para tomar decisiones sobre tratamientos e intervenciones preventivas con dosis eficaces y seguras para ellas y sus embriones o fetos. A manera de ilustración, en el 2001 había en los Estados Unidos apenas más de una docena de medicamentos aprobados para uso en el embarazo (1) y en el 2011 la Food and Drug Administration (FDA) aprobó por primera vez en 15 años un medicamento para su uso en el embarazo (2). Como consecuencia de no haber producido la evidencia necesaria, se pone en riesgo la salud de las mujeres embarazadas cada vez que se les da atención médica. Las mujeres embarazadas se enferman y las mujeres enfermas se embarazan, y no se sabe si los medicamentos que se les da son eficaces o siquiera seguros para ellas y sus embriones o fetos. (shrink)

Reichenbachian approaches to indexicality contend that indexicals are "token-reflexives": semantic rules associated with any given indexical-type determine the truth-conditional import of properly produced tokens of that type relative to certain relational properties of those tokens. Such a view may be understood as sharing the main tenets of Kaplan's well-known theory regarding content, or truth-conditions, but differs from it regarding the nature of the linguistic meaning of indexicals and also regarding the bearers of truth-conditional import and truth-conditions. Kaplan has criticized these (...) approaches on different counts, the most damaging of which is that they make impossible a "logic of demonstratives". The reason for this is that the token-reflexive approach entails that not two tokens of the same sentential type including indexicals are guaranteed to have the same truth-conditions. In this paper I rebut this and other criticisms of the Reichenbachian approach. Additionally, I point out that Kaplan's original theory of "true demonstratives" is empirically inadequate, and claim that any modification capable of accurately handling the linguistic data would have similar problems to those attributed to the Reichenbachian approach. This is intended to show that the difficulties, no matter how real, are not caused by idiosincracies of the "token-reflexive" view, but by deep facts about indexicality. (shrink)

Descriptive semantic theories purport to characterize the meanings of the expressions of languages in whatever complexity they might have. Foundational semantics purports to identify the kind of considerations relevant to establish that a given descriptive semantics accurately characterizes the language used by a given individual or community. Foundational Semantics I presents three contrasting approaches to the foundational matters, and the main considerations relevant to appraise their merits. These approaches contend that we should look at the contents of speakers’ intuitions; at (...) the deep psychology of users and its evolutionary history, as revealed by our best empirical theories; or at the personal-level rational psychology of those subjects. Foundational Semantics II examines a fourth view, according to which we should look instead at norms enforced among speakers. The two papers aim to determine in addition the extent to which the approaches are really rival, or rather complementary. (shrink)

Most studies investigating the relationship between cultural constructs and ethical perception have focused on individual- and societal-level values without much attention to other type of cultural constructs such as social beliefs. In addition, we need to better understand how social beliefs are linked to ethical perception and the level of analysis at which social beliefs may best predict ethical perceptions. This research contributes to the cross-cultural ethical perception literature by examining the relationship of individual-level social cynicism belief, one of five (...) universally endorsed social beliefs, together with individual social dominance orientation and the perception of unethical behavior. By means of two studies, we examine these relationships across societies that significantly differ on societal-level social cynicism belief. Using 371 business students from Russia and the U.S. in Study 1 and 268 professionals from Portugal and the U.S. in Study 2, we found that individual-level social cynicism belief was positively associated with social dominance orientation. Social dominance orientation, in turn, mediated the relationship between individual social cynicism belief and the perception of unethical behavior. Although we found significant societal-level differences in social cynicism belief in both studies, the relationships between individual-level social cynicism belief, social dominance orientation, and the perception of unethical behavior were structurally equivalent across societies in both studies, suggesting that societal-level differences did not significantly affect these relationships. Implications for cross-cultural business ethics research and practice are discussed. (shrink)

Most studies investigating the relationship between cultural constructs and ethical perception have focused on individual- and societal-level values without much attention to other type of cultural constructs such as social beliefs. In addition, we need to better understand how social beliefs are linked to ethical perception and the level of analysis at which social beliefs may best predict ethical perceptions. This research contributes to the cross-cultural ethical perception literature by examining the relationship of individual-level social cynicism belief, one of five (...) universally endorsed social beliefs, together with individual social dominance orientation and the perception of unethical behavior. By means of two studies, we examine these relationships across societies that significantly differ on societal-level social cynicism belief. Using 371 business students from Russia and the U.S. in Study 1 and 268 professionals from Portugal and the U.S. in Study 2, we found that individual-level social cynicism belief was positively associated with social dominance orientation. Social dominance orientation, in turn, mediated the relationship between individual social cynicism belief and the perception of unethical behavior. Although we found significant societal-level differences in social cynicism belief in both studies, the relationships between individual-level social cynicism belief, social dominance orientation, and the perception of unethical behavior were structurally equivalent across societies in both studies, suggesting that societal-level differences did not significantly affect these relationships. Implications for cross-cultural business ethics research and practice are discussed. (shrink)

The increasing use of digital technologies in judicial and arbitration proceedings increases the usage of digital evidence by the parties, which brings the necessity of creating patterns for adjudicators to admit and assess this new type of evidence. This paper generally addresses digital evidence focusing on the second moment in international arbitration proceedings. It also narrows the topic to hacked and leaked evidence and its admissibility in international arbitration. The literature review showed a significant amount of research devoted to the (...) evidence in arbitration. Some considered electronic evidence within one jurisdiction; others focused on certain forms of digital evidence such as electronic signatures. Papers on digital evidence in international arbitration approach arbitration rules for digital evidence but skip admissibility issues. No systemic and complex works research digital evidence in arbitration, explicitly focusing on the admissibility of hacked and leaked digital evidence from a comparative perspective. Also, no research deals with enforcing international arbitration awards relying on illegally obtained digital evidence. In these cases, there could be a possible violation of domestic public policy under the New York Convention terms (art. V, 2, b). That is why the paper aims to offer the concept of digital evidence in international arbitration, including hacked and leaked evidence, criteria of its admissibility and relevance, and design the arbitration guidelines for assessing hacked and leaked evidence. Comparative legal analysis of the international arbitration rules and national procedure law allowed us to compare the regulatory approaches to the definition of digital evidence and its admissibility worldwide. The method of legal modeling allowed designing model guidelines for arbitral tribunals to evaluate the admissibility and relevance of digital evidence, including hacked and leaked evidence. Moreover, the case study method allowed us to analyze jurisprudence and define criteria for admission of hacked and leaked evidence. We conclude that the admissibility of hacked and leaked evidence depends solely on the arbitrator’s broad discretion to assess the evidence. Nevertheless, thorough evidence analysis and a well-reasoned award are always mandatory. (shrink)

This book highlights some of the most pressing safety, ethical, legal and societal issues related to the diverse contexts in which robotic technologies apply. Focusing on the essential concept of well-being, it addresses topics that are fundamental not only for research, but also for industry and end-users, discussing the challenges in a wide variety of applications, including domestic robots, autonomous manufacturing, personal care robots and drones.

Nossa pesquisa tem por intuito lançar considerações acerca da ideia de suicídio como pratica de responsabilidade ética em determinados países asiáticas, nominalmente China e Japão, além disso, tratamos de lançar luz sobre as consequências dessa mentalidade em um mundo que atravessa mudanças de forma constante como nunca vimos antes.

A Síndrome de Kabuki é um distúrbio bastante raro, com múltiplas anomalias congênitas. O objetivo do estudo foi descrever características comportamentais, cognitivas e sociais de uma criança com seis anos de idade com Síndrome de Kabuki, e suas implicações no processo escolar. Como resultados, verif..

Normative and historical arguments support the idea that religion potentially shapes decisions to support fair trade products. That said, the question of how religion influences organizational decision-makers to purchase fair trade products in a business-to-business context has remained largely unaddressed. This research examines the interactive effect of individual religious commitment and contextual religious salience on an individual’s willingness to pay a price premium for a fair trade product, when buying on behalf of an organization. Findings from two experimental studies reveal (...) that the effect of a decision-maker’s religious commitment on his or her willingness to pay a price premium, for the purchase of a fair trade product on behalf of an organization, is moderated by the contextual salience of religion. Specifically, when religion is highly salient in the organizational context, religious commitment is positively related to the decision-maker’s willingness to pay a premium for the fair trade product; when contextual religious salience is low, religious commitment and willingness to pay a premium are unrelated. Implications for theory and practice are presented. (shrink)

We examine the role of working memory's central executive in the mental model explanation of propositional reasoning by using two working memory measures: the classical “reading span” test by Daneman and Carpenter (1980) and a new measure. This new “reasoning span” measure requires individuals to solve very simple anaphora problems, and store and remember the word solution in a growing series of inferential problems. We present one experiment in which we check the involvement of the central executive in conditional and (...) disjunctive inference tasks and compare predictions of the new reasoning span test with those of the classical reading span test. The results of the experiment confirm that reasoning responses, which according to mental model theory require high cognitive work, are predicted by working memory measures. Results also show that some reasoning responses are probably obtained by means of superficial biases or strategies that do not load working memory. The reasoning span test, which involves the central executive to a greater degree, predicts reasoning performance better than the reading span test. The significance and possibilities of the new measure in studying reasoning are discussed. (shrink)