In this issue of The Journal of Medical Ethics, xxx and colleagues report a randomized trial of the influence of default options on delivery room management of an extremely premature infant. They report that among respondents to the hypothetical vignette, those who received the resuscitation default were significantly more likely to choose resuscitation compared with those who were told that the default was comfort care. While the results warrant attention and further investigation, several methodological shortcomings limit the conclusions that can (...) be drawn from this study. (shrink)

One of the most basic functions of human language is to convey who did what to whom. In the world's languages, the order of these three constituents (subject [S], verb [V], and object [O]) is uneven, with SOV and SVO being most common. Recent experiments using experimentally elicited pantomime provide a possible explanation of the prevalence of SOV, but extant explanations for the prevalence of SVO could benefit from further empirical support. Here, we test whether SVO might emerge because (a) (...) SOV is not well suited for describing reversible events (a woman pushing a boy) and (b) pressures to be efficient and mention subjects before objects conspire to rule out many other alternatives. We tested this by asking participants to describe reversible and non‐reversible events in pantomime, and we instructed some participants to be consistent in the form of their gestures and to teach them to the experimenter. These manipulations led to the emergence of SVO in speakers of both English (SVO) and Turkish (SOV). (shrink)

Moral or ethical questions are vital because they affect our daily lives: what is the best choice we can make, the best action to take in a given situation, and ultimately, the best way to live our lives? Health ethics has contributed to moving ethics toward a more experience-based and user-oriented theoretical and methodological stance but remains in our practice an incomplete lever for human development and flourishing. This context led us to envision and develop the stance of a “living (...) ethics”, described in this inaugural collective and programmatic paper as an effort to consolidate creative collaboration between a wide array of stakeholders. We engaged in a participatory discussion and collective writing process known as instrumentalist concept analysis. This process included initial local consultations, an exploratory literature review, the constitution of a working group of 21 co-authors, and 8 workshops supporting a collaborative thinking and writing process. First, a living ethics designates a stance attentive to human experience and the role played by morality in human existence. Second, a living ethics represents an ongoing effort to interrogate and scrutinize our moral experiences to facilitate adaptation of people and contexts. It promotes the active and inclusive engagement of both individuals and communities in envisioning and enacting scenarios which correspond to their flourishing as authentic ethical agents. Living ethics encourages meaningful participation of stakeholders because moral questions touch deeply upon who we are and who we want to be. We explain various aspects of a living ethics stance, including its theoretical, methodological, and practical implications as well as some barriers to its enactment based on the reflections resulting from the collaborative thinking and writing process. (shrink)

This study assesses the retractions of scientific articles in engineering journals indexed on the Web of Science from 1945 to 2015. The data set was built based on documents containing the keywords retracted, retraction, withdrawal, or redress. We used database exploration techniques, including Structured Query Language and analysis of variance, for data analysis. We analyzed 238 retractions published by 117 journals. The most common reason for retraction was unethical research, and higher impact factors journals tended to publish more retractions. In (...) conclusion, most of the analyzed retractions were the result of unethical research and were retracted by editors. (shrink)

A growing body of research reveals that abusive supervision may have negative impacts in organizations. The purpose of the present study is to expand the knowledge regarding the impacts of this dysfunctional leadership behavior by examining its relationship with innovation in work teams. Specifically, we investigate the process through which abusive supervision may undermine team innovation by taking into account the mediating role of team proactive behavior. Moreover, we propose a boundary condition of the negative effect of abusive supervision by (...) considering leader–members interdependence as a moderator. Using a multisource approach, data were gathered from 394 members and 82 immediate supervisors in a public safety organization. Results of path analyses reveal that the relationship between abusive supervision and team innovation is mediated by team proactive behavior. Furthermore, we found that the relationship between abusive supervision and team proactive behavior is moderated by leader–members interdependence, such that this relationship is stronger when the level of interdependence is high. Taken together, the findings of this study improve the understanding of why and under what circumstances abusive supervision may impair team innovation. (shrink)

We address how listeners perceive temporal regularity in music performances, which are rich in temporal irregularities. A computational model is described in which a small system of internal self‐sustained oscillations, operating at different periods with specific phase and period relations, entrains to the rhythms of music performances. Based on temporal expectancies embodied by the oscillations, the model predicts the categorization of temporally changing event intervals into discrete metrical categories, as well as the perceptual salience of deviations from these categories. The (...) model's predictions are tested in two experiments using piano performances of the same music with different phrase structure interpretations (Experiment 1) or different melodic interpretations (Experiment 2). The model successfully tracked temporal regularity amidst the temporal fluctuations found in the performances. The model's sensitivity to performed deviations from its temporal expectations compared favorably with the performers' structural (phrasal and melodic) intentions. Furthermore, the model tracked normal performances (with increased temporal variability) better than performances in which temporal fluctuations associated with individual voices were removed (with decreased variability). The small, systematic temporal irregularities characteristic of human performances (chord asynchronies) improved tracking, but randomly generated temporal irregularities did not. These findings suggest that perception of temporal regularity in complex musical sequences is based on temporal expectancies that adapt in response to temporally fluctuating input. (shrink)

Visual research methods like photography and digital storytelling are increasingly used in health and social sciences research as participatory approaches that benefit participants, researchers, and audiences. Visual methods involve a number of additional ethical considerations such as using identifiable content and ownership of creative outputs. As such, ethics committees should use different assessment frameworks to consider research protocols with visual methods. Here, we outline the limitations of ethics committees in assessing projects with a visual focus and highlight the sparse knowledge (...) on how researchers respond when they encounter ethical challenges in the practice of visual research. We propose a situated approach in relation to visual methodologies that encompasses a negotiated, flexible approach, given that ethical issues usually emerge in relation to the specific contexts of individual research projects. Drawing on available literature and two case studies, we identify and reflect on nuanced ethical implications in visual research, like tensions between aesthetics and research validity. The case studies highlight strategies developed in-situ to address the challenges two researchers encountered when using visual research methods, illustrating that some practice implications are not necessarily addressed using established ethical clearance procedures. A situated approach can ensure that visual research remains ethical, engaging, and rigorous. (shrink)

Background:Neonatal nurse practitioners have become the frontline staff exposed to a myriad of ethical issues that arise in the day-to-day environment of the neonatal intensive care unit. However, ethics competency at the time of graduation and after years of practice has not been described.Research aim:To examine the ethics knowledge base of neonatal nurse practitioners as this knowledge relates to decision making in the neonatal intensive care unit and to determine whether this knowledge is reflected in attitudes toward ethical dilemmas in (...) the neonatal intensive care unit.Research design:This was a prospective cohort study that examined decision making at the threshold of viability, life-sustaining therapies for sick neonates, and a ranking of the five most impactful ethical issues.Participants and research context:All 47 neonatal nurse practitioners who had an active license in the State of Mississippi were contacted via e-mail. Surveys were completed online using Survey Monkey software.Ethical considerations:The study was approved by the University of Mississippi Medical Center Institutional Review Board (IRB; #2015-0189).Findings:Of the neonatal nurse practitioners who completed the survey, 87.5% stated that their religious practices affected their ethical decision making and 76% felt that decisions regarding life-sustaining treatment for a neonate should not involve consultation with the hospital’s legal team or risk management. Only 11% indicated that the consent process involved patient understanding of possible procedures. Participating in the continuation or escalation of care for infants at the threshold of viability was the top ethical issue encountered by neonatal nurse practitioners.Discussion:Our findings reflect deficiencies in the neonatal nurse practitioner knowledge base concerning ethical decision making, informed consent/permission, and the continuation/escalation of care.Conclusion:In addition to continuing education highlighting ethics concepts, exploring the influence of religion in making decisions and knowing the most prominent dilemmas faced by neonatal nurse practitioners in the neonatal intensive care unit may lead to insights into potential solutions. (shrink)

We address the problem of musical variation (identification of different musical sequences as variations) and its implications for mental representations of music. According to reductionist theories, listeners judge the structural importance of musical events while forming mental representations. These judgments may result from the production of reduced memory representations that retain only the musical gist. In a study of improvised music performance, pianists produced variations on melodies. Analyses of the musical events retained across variations provided support for the reductionist account (...) of structural importance. A neural network trained to produce reduced memory representations for the same melodies represented structurally important events more efficiently than others. Agreement among the musicians' improvisations, the network model, and music‐theoretic predictions suggest that perceived constancy across musical variation is a natural result of a reductionist mechanism for producing memory representations. (shrink)

to be published in the Proceedings of the 18. International Conference of Linguistics, Seoul, Korea.

The mechanical properties of vertebrate cells are largely defined by the system of intermediate filaments (IF). As part of a dense network, IF polymers are constantly rearranged and relocalized in the cell to fulfill their duty as cells change shape, migrate, or divide. With the development of new imaging technologies, such as photoconvertible proteins and super‐resolution microscopy, a new appreciation for the complexity of IF dynamics has emerged. This review highlights new findings about the transport of IF, the remodeling of (...) filaments by a process of severing and re‐annealing, and the subunit exchange that occurs between filament precursors and a soluble pool of IF. We will also discuss the unique dynamic features of the keratin IF network. Finally, we will speculate about how the dynamic properties of IF are related to their functions. (shrink)

Graphical AbstractThe third annual meeting of the EpiGeneSys network brought together epigenetics and systems biologists to report on collaborative projects that apply quantitative approaches to understanding complex epigenetic processes. The figure shown represents one meeting highlight, which was the unexpected emergence of genotype versus epigenotype in control of cell state.

We can think about the use of controlled substances in the treatment of anxiety disorders in two simple but diametrically opposed ways. First, we can say that anxiety disorders are trivial and require only acts of willpower, or, if anxiety disorders do require treatment, they are better treated without the use of benzodiazepines. When BZs are used to treat anxiety, they pose grave risks of addiction to the patients to whom these medicines are prescribed; they relieve patients’ symptoms, but are (...) the equivalent of a pharmacological “roach motel,” a haven into which many unsuspecting patients enter, but from which few emerge without becoming addicted. Patients must then face terrible struggles to free themselves of dependence on BZs, and this compounds the problem for which they sought treatment. Furthermore, the large number of prescriptions for BZs are a threat to the public health because these drugs are widely abused by alcoholics and drug addicts. (shrink)

Great effort is invested in identifying ways to change people's minds on an issue. A first priority should perhaps be enriching their thinking about the issue. With a goal of enriching their thinking, we studied the views of community adults on the DACA issue—young adults who entered the United States illegally as children. A dialogic method was employed, offering dual benefits in providing participants the opportunity to further develop their own ideas and to consider differing ideas. Yet, participants engaged in (...) dialog only vicariously by observing the talk of a pair of actors who held opposing positions on DACA. The effect on participants’ thinking was greatest in the condition in which they viewed a dialog between the two actors, rather than a comparison condition in which the actors individually expressed their positions. In control conditions, no presentation was observed. Probing questions included in all conditions encouraged a participant to examine and clarify for themselves their own position, potentially enriching it. This condition proved unsuccessful in enriching thinking; participants’ justifications for their own positions in fact became simpler and less qualified. In contrast, observing a video of a like-minded and opposing other did enrich observers’ thinking, yet to a greater degree in the dialogic than nondialogic condition. The findings thus suggest observed dialog as a promising practical approach in promoting deeper thinking. (shrink)

We agree with Rendell and Whitehead that cetaceans acquire knowledge from caretakers and peers, and that a clear understanding of this process can provide insight into the evolution of mammalian cognition. The passive observational methods they advocate, however, are inadequate for determining what cetaceans know. Only by experimentally investigating the cognition of cetaceans can we hope to understand what they learn through social interactions.

In lieu of an abstract, here is a brief excerpt of the content:The Vagaries of Exemplarity: Distortion or Dismissal?Michel JeanneretExample is an uncertain looking-glass, all embracing, turning all ways.Montaigne 1Ancients and Moderns: Negotiating CoexistenceDo the Ancients provide the Renaissance with a repertoire of infallible examples? Do they have such absolute authority that their models, whether ethical or aesthetic, retain their relevance in every circumstance? The question is part and parcel of that thinking, which is fundamental to the sixteenth century, on (...) the status of Greco-Roman paradigms in the management of public and private life, or in the methods of science and the arts. Before analyzing two particular responses to classical exemplarity—by Erasmus and Montaigne—we shall set the problem in its general context.Whether lobbying for intense faithfulness to the models or recognizing the need for divergence, whether insisting on continuity or the need for change, on the possibility or impossibility of equaling the masters, everyone in the sixteenth century measured art, knowledge, and moral reflection according to the Greek and Roman norm. Scholars and artists together entered into this exchange on a daily basis and everybody, whatever the extent of their dependence, knew that their work could not be conceived or perceived as anything other than the more or less free modification of a particular vestige of classical heritage. To escape tradition was unthinkable, but to accept it resignedly was absurd. All room for maneuver was therefore in the shifting difference between [End Page 565] old and new, and in the extent of its transformation. 2 It is then predictable, given these conditions, that the transmission of classical examples should be subject to turbulence without, however, undergoing any violent break.The question was even more relevant given that the sense of history, the consciousness of time past being irrevocably lost took on a new resonance now. Recognizing and acknowledging the phenomenon of irreversible development—whether good or bad—counts as one of the most important intellectual acquisitions of the Renaissance. 3 The Middle Ages had been able to maintain the illusion of continuity and, by dressing Antiquity up in the manners and colors of feudal chivalry, had seen itself reflected in it as in a mirror. With the influx of new documents and the perfecting of more rigorous methods of interpretation—the techniques of philology—intellectuals had to acknowledge evident change. The past could no longer be modeled on the present; all imitation would henceforth be witness to the impossibility of any perfect match. At the same time as the classical world was coming to light, it was also getting further away, getting lost. This bereavement sometimes sparked off enough regressive nostalgia to provide matter for many an antiquarian project. In reaction to this loss, most humanists were motivated into salvaging the salvageable by injecting a dose of novelty into the rift created by their awareness of history. The intellectuals of the Renaissance would often have felt as if they were reenacting the famous encounter of the Romans and the Greeks; like the Romans they wanted to be both conquering and conquered, free and faithful, differing and deferring. For them also the antique model will be an ideal simultaneously present and lost, necessary and foreign.Two opposing solutions to this dilemma seemed to offer themselves: on the one hand an unconditional return to the sources minimizing the effects of history, and on the other an exploitation of the eclipses of the past, giving the present a chance to fight it out with the Ancients. We shall sketch out each of these two strategies: both the methods of respectful transmission and those of transformative intervention.Fine-tuned by the humanists, philology was closely linked to the advent of historical consciousness. Since classical civilization had definitively come to an end, the philologist devoted himself to reconstituting and preserving it, in all its original specificity. He removed the layers of interference accumulated over the centuries, reestablished the texts in their authentic versions, maybe even providing commentary on the meaning of the work within its context. Theoretically his intervention stopped there. Acknowledging the difference and [End Page 566] superiority of past authors, he did not touch their works except to restore them to their pristine selves. Soon... (shrink)

This study investigated the beliefs that formed teachers’ intentions to integrate STEM content into their social studies instruction. Participants were 60 elementary, middle, and high school in-service teachers who attended a summer history workshop on Abraham Lincoln. Data were collected by qualitative and quantitative instruments. Beliefs about likely outcomes of integrating STEM, and beliefs about persons who would approve, or disapprove, of STEM integration were elicited from teachers, and content analyzed. The resulting outcome and normative beliefs were used as stems (...) for items in the quantitative instrument. Quantitative data were analyzed primarily by correlation and multiple regression. This study found that attitude toward the behavior, integrating STEM, was formed by 15 outcome beliefs, subjective norm was formed by five normative beliefs, and that attitude and norm predicted behavioral intention. The theory we used enabled us to calculate the numerical contribution of each of the beliefs that were important in forming teachers’ intentions. The results have implications for theory, research, and practice in social studies education. In the realm of practice, these implications are for the initial preparation of, and the subsequent professional development of social studies teachers, both at the elementary and secondary levels. (shrink)

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain (...) in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

Arabidopsis thaliana (Thale cress, Arabidopsis) is an ideal model organism for the molecular genetic analysis of many plant processes. The availability of a complete physical map would greatly facilitate the gene cloning steps in these studies. The small genome size of Arabidopsis makes the construction of such a map a feasible goal. One of the approaches to construct an overlapping library of the Arabidopsis genome takes advantage of the many mapped markers and the availability of Arabidopsis yeast artificial chromosome (YAC) (...) libraries. Mapped molecular markers are used to identify corresponding YAC clones and thereby place them on the genetic map. Subsequently, these YAC clones provide the framework for directed walking experiments aimed at closing the gaps between the YAC contigs. Adopting this strategy, YAC clones comprising about 10% of the genome have been assigned to the top halves of Arabidopsis chromosomes 4 and 5. Extensive walking experiments in a 10 cM interval of chromosome 4 have resulted in two contiguous regions in the megabase size range. (shrink)

Jacques Derrida returns relentlessly to the question of literature which is already a prominent concern in early texts such as Writing and Difference. The focus of this article is the conception of literature in ‘Literature in Secret: An Impossible Filiation’, in which Derrida discusses filiation with reference to Abraham and Isaac, the fundamental necessity of secrecy and the notion of the pardon. Above all, it is Kafka's Letter to His Father which perhaps provides a paradigm for defining literature. In this (...) specular address, the promise of a heritage is in the balance. Writing incessantly on Kafka, Maurice Blanchot also reflects on literature. The notion of literature put forward by Derrida in ‘Literature in Secret: An Impossible Filiation’ is considered in this article, as well as reflections by Blanchot, to show what might be at stake in Kafka's Letter to His Father. (shrink)

Writing and that which it entails are the subject of countless texts by Maurice Blanchot. In particular, Blanchot has focused on the notion of the work, or more precisely on a groundlessness or an absence of the work, which he has designated from different perspectives over the course of more than half a century. In various ways, Blanchot has conceived of the work as an affirmation of its undoing. The question of narration, often about a confrontation with death, is fundamentally (...) important, as is evident for example in Blanchot’s Death Sentence, The Madness of the Day or The Instant of My Death. In a sense, it is bound up with the possibility of the work. Writing about Henry James in “The Turn of the Screw” 2 in The Book to Come, Blanchot discusses narration. What is described is indeed a certain absence of the work relating to the writer’s difficult struggle to narrate everything. I will examine Blanchot’s reading of James to expose this conception of narration centred on seizing the truth. It is apparent that Blanchot approaches the question very differently in “Narrative Voice ,” in The Infinite Conversation in which there is a decentring of the work. 3 I will show that this text as well as certain writings by Derrida make it possible to arrive at a conception of narration in Henry James’s The Turn of the Screw which strongly contrasts with the one put forward by Blanchot in The Book to Come. Thus, alongside Blanchot’s reading of The Turn of the Screw which relates to the project of realising the work as a totality, Blanchot makes possible a more radical approach to the text, illustrating the non-totalization of the work whose borders are uncertain. In this way, Blanchot can be shown to step beyond an impossible conception of the absence of the work. (shrink)

Kants Ethik ist gut begründbar, es fehlt ihr aber anscheinend an Motivationskraft. Wie soll man nach Kant dazu bewegt werden, moralisch zu sein? Seine ethischen Schriften problematisieren, was die Anthropologie zu lösen versucht: Motivation zum moralischen Handeln. Diese "Lösung" steht in einer Tradition europäischer Moralistik, in der es darum geht, Moral anthropologisch zu reflektieren. Sie beschreiben einen Handlungsraum, in dem Regeln der Klugheit, Manieren und Höflichkeit und ein Konzept des "moralischen Scheins" das selbstbestimmte Individuum leiten. Die Aufgabe des vorliegenden Buches (...) ist es, Kant systematisch, also nicht allein historisch, durch die Leitfrage nach Motivation und Begründung in den Horizont moralistischer Ethik einzufügen. Die theoretische Verortung von Kants Moralsystem und seine Einordnung in die "historische Semantik" von Moral und Anthropologie nimmt Maß an Niklas Luhmanns Ansätzen zu diesem Thema.. (shrink)

Plus qu'un ouvrage concernant les rapports ombrageux et controversés de l'art et de la pathologie, ce recueil est d'abord une rencontre, un creuset entre des champs, la clinique et la théorie qui, pour s'y confronter, excèdent les limites du " prêt-à-penser ". C'est pourquoi ici les divergences de méthodes et de perspectives entre des approches phénoménologique et psychanalytique ne dressent pas de strictes délimitations, mais font résonner des dissonances capables de laisser penser l'écart entre l'art et la pathologie comme établi (...) sur une entr'appartenance plus essentielle, ne livrant rien de son secret à celui qui s'en tient à des distinctions de principe. Encore faut-il entendre pathologie en son sens grec, au sens où la rencontre avec le monde ouvre, dans le réel, une brèche incolmatable dont seul l'art peut authentiquement rendre compte et dans laquelle la psychose s'engouffre si aucune mise en œuvre ne vient l'endiguer ou la ressourcer. " Aussi ne faut-il pas s'étonner que penser l'art et penser la folie puissent converger dans la mesure où ni l'un ni l'autre ne sont conceptualisables. Finalement, penser l'art ou penser la folie, c'est avoir ouverture à eux, à travers les œuvres, à travers les êtres malades et cela n'est possible précisément que dans une rencontre. Qu'est-ce qu'une rencontre? C'est cette situation qui n'a pas d'antécédent, qui n'a pas d'espace ni de temps qui puisse la précéder. L'épiphanie de quelqu'un dans le regard d'un autre implique nécessairement l'autophanie de celui-ci. L'échec de la rencontre, récusant tout passage lucide à l'ouvert, rejette le thérapeute sur sa facticité. C'est pour se dérober à l'épreuve sans partage de cette absence de soi, que la psychiatrie médicale, scientifico-médicale fait l'impasse sur la présence de l'autre, en objectivant tout ce qui touche à l'homme, en faisant de lui un cas particulier de cette objectivation universelle qui est la caractéristique de la culture de notre époque. ". (shrink)

For paediatric medicine to advance, research must be conducted specifically with children. Concern about poor recruitment has led to debate about payments to child research participants. Although concerns about undue influence by such ‘compensation’ have been expressed, it is useful to determine whether children can relate the time and inconvenience associated with participation to the value of payment offered. This study explores children's ability to determine fair remuneration for research participation, and reviews payments to children participating in research. Forty children (...) were interviewed before outpatient visits at two London Hospitals: Great Ormond Street Children's Hospital and the Whittington Hospital District General Hospital. Children were asked to value their involvement in two hypothetical research scenarios – the first an ‘additional blood sample’, the second also involving daily oral oil capsules taken for a fortnight before further venesection. Background knowledge about familiarity with money, and experience with hospitalisation was assessed. The mean valuation of involvement in the second scenario (£13.18) was higher than in the first (£2.84) (p<0.001). This higher valuation persisted when children were categorised into groups ‘aged 12+’ and ‘below 12’. Those undergoing a blood test on the day placed a higher valuation on participation in the second scenario (£10.43, £21.67, p=0.044). These children aged 8–16 demonstrated the capacity to discern a fair valuation for participation in medical research. The monetary sums are influenced by the time and inconvenience involved in the research, and by the extent of recent experience with hospital procedures. The authors review current ethical thinking regarding payments to child research participants and suggest that a fair wage model might be an ethically acceptable way to increase participation of children in research. (shrink)

All large-scale telescope facilities are constructed within a geographical, social, historical, and political context that includes nested layers at the global, national, and local levels. However, discussions about the geographic siting of astronomy facilities, for example, the communities in which they are embedded or the interactions between the facility and its locale, are uncommon in social science studies of astronomy, and no extant review focused on this gap in the literature. In this literature review and discourse analysis, we explore the (...) ways in which research about astronomy facilities and their local communities has emerged, and the extent to which it focuses on the Global South. We find that literature addressing the social and policy aspects of astronomy facilities has an emphasis on the Global North. However, literature addressing host communities has an emphasis on the Global South. Broadly, the discourses related to host communities in the Global South have emerged from reflections on the controversies related to large-scale telescopes in Hawai’i, Chile, and South Africa. One common theme linking these discourses is that a focus on benefits at the national and international levels obscures a range of problematic power dynamics and outcomes at the local level. The notion of the Global South as an ‘empty space’ in which astronomical observation does not constitute impactful action amongst local communities, is challenged by discourses that centre local contexts, and challenged by discourses that employ conceptual frameworks with a focus on revealing power dynamics. (shrink)

We present two prudent semantics within Dung's theory of argumentation. They are based on two new notions of extension, referred to as p-extension and c-extension. Two arguments cannot belong to the same p-extension whenever one of them attacks indirectly the other one. Two arguments cannot belong to the same c-extension whenever one of them indirectly attacks a third argument while the other one indirectly defends the third. We argue that our semantics lead to a better handling of controversial arguments than (...) Dung's ones. We compare the prudent inference relations induced by our semantics w.r.t. cautiousness; we also compare them with the inference relations induced by Dung's semantics. (shrink)