The questions and methods of molecular biology and evolutionary biology are clearly distinct, yet a unified approach can lead to deep insights. Unfortunately, attempts to unify these approaches are fraught with pitfalls. In this informal series of questions and answers, we offer the mechanistically oriented biologist a set of steps to come up with evolutionarily reasonable and meaningful hypotheses. We emphasize the critical power and importance of carefully constructed null hypotheses, and we illustrate our ideas with examples representing a (...) range of topics, from the biology of aging, to protein structure, to speciation, and more. We also stress the importance of mathematics as the lingua franca for biologists of all stripes, and encourage mechanistic biologists to seek out quantitative collaborators to build explicit mathematical models, making their assumptions explicit, and their logic clear and testable. Biologists in all realms of inquiry stand to gain from strong bridges between our disciplines. (shrink)

Symbolic Annihilation or Alternative Femininity? The Portrayal of Women in Selected Polish Advertisements The year 1989 marks the beginning of sweeping political, economic and social changes in Poland. Since that time an expansion of women into top professional positions can be observed. Data from the last national census clearly indicate that women in Poland are better educated than their male counterparts, increasingly careeroriented as well as aggressively pursuing managerial occupations. A modern woman is, by popular belief, no longer obliged to (...) conform to the so-called dominant or emphasized [i.e. hegemonic] form of femininity. There appears to be greater social latitude for her professional development. The paper explores whether print advertisements of certain products incorporate new powerful discourse of femininity. The three advertised products and services selected for the analysis have been commonly associated in Poland with the dominant form of masculinity. Consequently, it is interesting to examine whether women function there, and if so, how. The analyzed advertisements have been collected over the period of one year from three magazines addressed to the emerging Polish middle class. Drawing on Goffman's concepts of function ranking and ritualization of subordination as well as Critical Discourse Analysis, I will attempt to determine whether the selected print advertisements reflect the new femininity in Poland. (shrink)

It is known that various complexity-theoretical problems can be translated into some special spectra problems (see e.g. Fagin [Fa74] or Blass and Gurevich, [Bl-Gu86]). So questions about complexity classes are translated into questions about the expressive power of some languages. In this paper we investigate the spectra of some logics with Henkin quanti fiers in the empty vocabulary. This problem has been investigated fi rstly by Krynicki and Mostowski in [Kr-Mo 92] and [Kr- Mo 95]. All presented results can (...) be also treated as results about the expressive power of certain languages in fi nite models. (shrink)

in her 2010 paper, "the new politics of community," Dr. Collins's argument on community as conceptually and practically a political construct provides a vital connection to the American philosophical tradition, particularly the work of W. E. B. Du Bois and John Dewey. In my response to her paper, I combine components of her argument with her earlier work in black feminist epistemology. I tie these insights to Du Bois's and Dewey's arguments regarding how communities develop. These are then connected to (...) the work by transnational feminist Chandra Mohanty and political scientist Benedict Anderson on imagined communities. I use these to develop a framework for thinking of some communities as communities of epistemic... (shrink)

In critical care medicine, teaching and mentoring practices are extremely important in regard to attracting and retaining young trainees and faculty in this important subspecialty that has a scarcity of needed personnel in the USA. To this end, we argue that Foucault’s Technologies of the Self is critical background reading when endeavoring to effect the positive transformation of faculty into effective teachers and mentors.

Shortcomings in the target article preclude adequate tests of developmental/attachment and strategic pluralism theories. Methodological problems include comparing college student attitudes with societal level indicators that may not reflect life conditions of college students. We show, through two principal components analyses, that multiple tests of the theories reduce to only two findings that cannot be interpreted as solid support for evolutionary hypotheses.

Multiteam systems are complex organizational forms comprising interdependent teams that work towards their own proximal goals within and across teams to also accomplish a shared superordinate goal. MTSs operate within high-stakes, dangerous contexts with high consequences for suboptimal performance. We answer calls for nuanced exploration and cross-context comparison of MTSs “in the wild” by leveraging the MTS action sub-phase behavioral taxonomy to determine where and how MTS failures occur. To our knowledge, this is the first study to also examine how (...) key MTS attributes influence MTS processes and performance. We conducted historiometric analysis on 40 cases of failed MTS performance across various contexts to uncover patterns of within- and between-team behaviors of failing MTSs, resulting in four themes. First, component teams of failing MTSs over-engaged in within-team alignment behaviors by enacting acting, monitoring, and recalibrating behaviors more often within than between teams. Second, failing MTSs over-focused on acting behaviors and tended to not fully enact the action sub-phase cycle. Third and fourth, boundary status and goal type exacerbated these behavioral patterns, as external and physical MTSs were less likely to enact sufficient between-team behaviors or fully enact the action sub-phase cycle compared to internal and intellectual MTSs. We propose entrainment as a mechanism for facilitating MTS performance wherein specific, cyclical behavioral patterns enacted by teams align to facilitate goal achievement via three multilevel behavioral cycles. We argue that the degree to which these cycles are aligned both between teams and with the overarching MTS goal determines whether and how an MTS fails. Our findings add nuance beyond single-context MTS studies by showing that the identified behavioral patterns hold both across contexts and almost all types of MTS action-phase behaviors. We show that these patterns vary by MTS boundary status and goal type. Our findings inform MTS training best practices, which should be structured to integrate all component teams and tailored to both MTS attributes and situation type. (shrink)

Conferring legal personhood on purely synthetic entities is a very real legal possibility, one under consideration presently by the European Union. We show here that such legislative action would be morally unnecessary and legally troublesome. While AI legal personhood may have some emotional or economic appeal, so do many superficially desirable hazards against which the law protects us. We review the utility and history of legal fictions of personhood, discussing salient precedents where such fictions resulted in abuse or incoherence. We (...) conclude that difficulties in holding “electronic persons” accountable when they violate the rights of others outweigh the highly precarious moral interests that AI legal personhood might protect. (shrink)

Food images are useful stimuli for the study of cognitive processes as well as eating behavior. To enhance rigor and reproducibility in task-based research, it is advantageous to have stimulus sets that are publicly available and well characterized. Food Folio by Columbia Center for Eating Disorders is a publicly available set of 138 images of Western food items. The set was developed for the study of eating disorders, particularly for use in tasks that capture eating behavior characteristic of these illnesses. (...) It contains foods that are typically eaten, as well as those typically avoided, by individuals with eating disorders. Each image has now been rated across 17 different attributes by a large general United States population sample via Amazon’s Mechanical Turk. Ratings included subjective attributes as well as estimates of nutrient content. Each participant rated a subset of stimulus set food items on all 17 dimensions. Additional description of the image set is provided in terms of physical image information and accurate nutritional information. Correlations between subjective ratings were calculated and an exploratory factor analysis and exploratory cluster analysis completed. Outcomes of the factor analysis suggested foods may be described along three latent factors of healthiness, tastiness, and umami taste; the cluster analysis highlighted five distinct clusters of foods varying on these same dimensions. Descriptive outcomes indicated that the stimulus set includes a range of foods that vary along multiple dimensions and thus is likely to be useful in addressing various research questions surrounding eating behavior and cognition in healthy populations, as well as in those with eating disorders. The provision of comprehensive descriptive information allows for stimulus selection that is optimized for a given research question and promotes strong inference. (shrink)

Accurate perception of an individual’s identity and emotion derived from their actions and behavior is essential for successful social functioning. Here we determined the role of identity in the representation of emotional whole-body actions using visual adaptation paradigms. Participants adapted to actors performing different whole-body actions in a happy and sad fashion. Following adaptation subsequent neutral actions appeared to convey the opposite emotion. We demonstrate two different emotional action aftereffects showing distinctive adaptation characteristics. For one short-lived aftereffect, adaptation to the (...) emotion expressed by an individual resulted in biases in the perception of the expression of emotion by other individuals, indicating an identity-independent representation of emotional actions. A second, longer lasting, aftereffect was observed where adaptation to the emotion expressed by an individual resulted in longer-term biases in the perception of the expressions of emotion only by the same individual; this indicated an additional identity-dependent representation of emotional actions. Together, the presence of these two aftereffects indicates the existence of two mechanisms for coding emotional actions, only one of which takes into account the actor’s identity. The results that we observe might parallel processing of emotion from face and voice. (shrink)

Accurate perception of the emotional signals conveyed by others is crucial for successful social interaction. Such perception is influenced not only by sensory input, but also by knowledge we have about the others’ emotions. This study addresses the issue of whether knowing that the other’s emotional state is congruent or incongruent with their displayed emotional expression (“genuine” and “fake”, respectively) affects the neural mechanisms underpinning the perception of their facial emotional expressions. We used a visual adaptation paradigm to investigate this (...) question in three experiments employing increasing adaptation durations. The adapting stimuli consisted of photographs of emotional facial expressions of joy and anger, purported to reflect (in-)congruency between felt and expressed emotion, displayed by professional actors. A Validity checking procedure ensured participants had the correct knowledge about the (in-)congruency. Significantly smaller adaptation aftereffects were obtained when participants knew that the displayed expression was incongruent with the felt emotion, following all tested adaptation periods. This study shows that knowledge relating to the congruency between felt and expressed emotion modulates face expression aftereffects. We argue that this reflects that the neural substrate responsible for the perception of facial expressions of emotion incorporates the presumed felt emotion underpinning the expression. (shrink)

We discuss recent progress in the development of cognitive ontologies and summarize three challenges in the coordinated development and application of these resources. Challenge 1 is to adopt a standardized definition for cognitive processes. We describe three possibilities and recommend one that is consistent with the standard view in cognitive and biomedical sciences. Challenge 2 is harmonization. Gaps and conflicts in representation must be resolved so that these resources can be combined for mark-up and interpretation of multi-modal data. Finally, Challenge (...) 3 is to test the utility of these resources for large-scale annotation of data, search and query, and knowledge discovery and integration. As term definitions are tested and revised, harmonization should enable coordinated updates across ontologies. However, the true test of these definitions will be in their community-wide adoption which will test whether they support valid inferences about psychological and neuroscientific data. (shrink)

Science communication via testimony requires a certain level of trust. But in the context of ideologically-entangled scientific issues, trust is in short supply—particularly when the issues are politically ‘entangled’. In such cases, cultural values are better predictors than scientific literacy for whether agents trust the publicly-directed claims of the scientific community. In this paper, we argue that a common way of thinking about scientific literacy—as knowledge of particular scientific facts or concepts—ought to give way to a second-order understanding of science (...) as a process as a more important notion for the public’s trust of science. (shrink)

The scientific community, we hold, often provides society with knowledge—that the HIV virus causes AIDS, that anthropogenic climate change is underway, that the MMR vaccine is safe. Some deny that we have this knowledge, however, and work to undermine it in others. It has been common to refer to such agents as “denialists”. At first glance, then, denialism appears to be a form of skepticism. But while we know that various denialist strategies for suppressing belief are generally effective, little is (...) known about which strategies are most effective. We see this as an important first step toward their remediation. This paper leverages the approximate comparison to various forms of philosophical skepticism to design an experimental test of the efficacy of four broad strategies of denial at suppressing belief in specific scientific claims. Our results suggest that assertive strategies are more effective at suppressing belief than questioning strategies. (shrink)

Organisations have implemented intensive home-based teleworking in response to global COVID-19 lockdowns and other pandemic-related restrictions. Financial pressures are driving organisations to continue intensive teleworking after the pandemic. Understanding employees’ teleworking inclinations post COVID-19, and how these inclinations are influenced by different factors, is important to ensure any future, more permanent changes to teleworking policies are sustainable for both employees and organisations. This study, therefore, investigated the relationships between the context of home-based teleworking during the pandemic, productivity perceptions during home-based (...) teleworking, and employees’ future teleworking inclinations beyond the pandemic. Specifically, the study examined whether pandemic-teleworking conditions related to the job, and the physical and social environments at home, influenced employees’ FTI, and if perceptions of improved or reduced productivity mediated these relationships. Data were collected during April and May 2020 with a cross-sectional online survey of teleworkers in Germany, Switzerland, the United Kingdom, and other countries during the first COVID-19 lockdowns. Reported FTI were mixed. Most participants reported wanting to telework more post-pandemic compared to before the pandemic; however, 18% wanted to telework less. Hierarchical multiple regression analysis revealed that some teleworking conditions were positively associated with FTI. Other teleworking conditions were not associated with FTI. Perceived changes in productivity mediated the relationship between work privacy fit and FTI. Findings highlight the role of work privacy fit and job demands in influencing pandemic productivity perceptions and teleworking inclinations post-pandemic. Results raise questions about the suitability and sustainability of home-based teleworking for all staff. As organisations plan to increase the proportion of teleworking post-pandemic, this study suggests there is a need to support employees who perceived their productivity to be poor while home-working during the pandemic. (shrink)

Background:Clinical investigation is a growing field employing increasing numbers of nurses. This has created a new specialty practice defined by aspects unique to nursing in a clinical research context: the objectives, setting, and nature of the nurse–participant relationship. The clinical research nurse role may give rise to feelings of ethical conflict between aspects of protocol implementation and the duty of patient advocacy, a primary nursing responsibility. Little is known about whether research nurses experience unique ethical challenges distinct from those experienced (...) by nurses in traditional patient-care settings.Research objectives:The purpose of the study was to describe the nature of ethical challenges experienced by clinical research nurses within the context of their practice.Research design:The study utilized a qualitative descriptive design with individual interviews.Participants and research context:Participating nurses self-identified as having experienced ethical challenges during screening. The majority were Caucasian, female, and worked in outpatient settings. Approximately 50% had > 10 years of research experience.Ethical considerations:The human subjects review board approved the study. Written informed consent was obtained.Findings:Predominant themes were revealed: the inability to provide a probable good, or/do no harm, and dual obligations. The following patterns and subthemes emerged: conflicted allegiances between protocol implementation, needs of the participant, desire to advance science, and tension between the nurse–patient therapeutic relationship versus the research relationship.Discussion:Participants described ethical challenges specific to the research role. The issues are central to the nurse–participant relationship, patient advocacy, the nurse’s role in implementing protocols, and/or advancing science.Conclusion:Ethical challenges related to the specialized role of clinical research nurses were identified. More research is warranted to fully understand their nature and frequency and to identify support systems for resolution. (shrink)

This book addresses how people and organisations sometimes respond to uncertainty in making decisions. Those decisions are rooted in beliefs and behaviours that are not always rational, especially in response to perceived randomness, chaos and unexpected circumstances. The author uses a transdisciplinary approach to the study of superstition in the context of business and management, taking care to acknowledge that what is regarded as superstition to one person may well be constructed as a spiritual belief by another. Respect and sensitivity (...) in explicating individual and social constructions of spirituality is a core value in structuring the narrative of the text. The work also explores the interwoven relationships amongst superstition, religion, spirituality and empiricism and how cultural, political, economic and environmental factors are likely to influence organisations and those who are employed by them. Further, it examines the influence of beliefs related to topics such as feng shui, astrology, phrenology and the I Ching in recruitment. This comprehensive treatment of the role of superstition in business will advance the scholarly conversation on uncertainty in decision making. It points to the power of belief that defies empirical validation and how it can be used in a variety of contexts, such as the marketing of products and images to manipulate unwary consumers or inhibit the implementation of health advice in times of COVID-19. (shrink)

The recent expansion of the English academies programme has initiated a period of significant change within the state education system. As established administration has been disrupted, new providers from business and philanthropy have entered the sector with a range of approaches to transform schools. This paper examines the development of co-operative schools, which are positioned as an ‘ethical alternative’ within the system and have proved popular with teachers and parents. Using a theory of co-operative power drawn from the philosophy (...) of Spinoza, the author explores how co-operative schools have emerged, with and against the reforming agenda, using narratives of hope and resistance. Spinoza provides theoretical resources to critique this positioning and to project beyond the limiting narratives to an affirmative vision for co-operative schools. (shrink)

The goals and tasks of neuroethics formulated by Farahany and Ramos (2020) link epistemological and methodological issues with ethical and social values. The authors refer simultaneously to the social significance and scientific reliability of the BRAIN Initiative. They openly argue that neuroethics should not only examine neuroscientific research in terms of “a rigorous, reproducible, and representative neuroscience research process” as well as “explore the unique nature of the study of the human brain through accurate and representative models of its function (...) and dysfunction”, but also its responsibilities or social consequences. In our commentary, we would like to concentrate on problem selection, which is shortly noticed by Farahany and Ramos, and by BRAIN Initiative’s Neuroethics Report itself. The document raises an important issue related to problem selection, which is strengthening or perpetuating existing prejudices and biases by choosing a research subject: “scientists are prompted to consider how the questions they choose to study in the laboratory might amplify existing biases.” This leads to several further problems: what constitutes bias?; how biases may be embedded in the selection of research programs?; is it possible to conduct completely unbiased research?; who should be a gatekeeper in the case of research that may amplify biases? We try to notice possible answers to these questions in the context of the research on differences (e.g., cognitive, medical, behavioral) between human populations. (shrink)

Reigning regulatory frameworks for biomedical research impose on researchers and research ethics committees an obligation to protect research participants from risks that are unnecessary, disproportionate to potential research benefits, and non-minimized. Where the research has no potential to produce results of direct benefit to the subjects and the subjects are unable to give consent, these requirements are strengthened by an additional condition, that risks should not exceed a certain minimal threshold. In this article, I address the question of whether there (...) should be limits of permissible risks in non-therapeutic research involving competent and healthy subjects. Some commentators argue that competent and informed individuals should have a right to participate even in extremely risky research and that research ethics committees should never reject studies because they are too dangerous. To use David Shaw's expression, competent volunteers should have ‘a right to participate in high-risk research’. I argue that this idea is ill-founded, as it does not take into account the social mission and complex collaborative nature of research practice as well as the inequity of power between researchers and subjects. Imposition of limits on permissible risks for healthy volunteers is justified by the need to protect research enterprise and the need to protect the weaker party, namely the subjects. Also, I suggest that the best way to set boundaries on research risks is to leave the judgment of risk acceptability to research ethics committees. (shrink)

Life typically becomes an object of reflection when it is seen to be under threat. In particular, humans have a tendency to engage in thinking about life (instead of just continuing to live it) when being confronted with the prospect of death: be it the death of individuals due to illness, accident or old age; the death of whole ethnic or national groups in wars and other forms of armed conflict; but also of whole populations, be they human or nonhuman. (...) Even though Minimal Ethics for the Anthropocene is first and foremost concerned with life--understood as both a biological and social phenomenon--it is the narrative about the impending death of the human population (i.e., about the extinction of the human species), that provides a context for its argument. "Anthropocene" names a geo-historical period in which humans are said to have become the biggest threat to life on earth. However, rather than as a scientific descriptor, the term serves here primarily as an ethical injunction to think critically about human and nonhuman agency in the universe. Restrained in tone yet ambitious in scope, the book takes some steps towards outlining a minimal ethics thought on a universal scale. The task of such minimal ethics is to consider how humans can assume responsibility for various occurrences in the universe, across different scales, and how they can respond to the tangled mesh of connections and relations unfolding in it. Its goal is not so much to tell us how to live but rather to allow us to rethink "life" and what we can do with it, in whatever time we have left. The book embraces a speculative mode of thinking that is more akin to the artist's method; it also includes a photographic project by the author."--Publisher's description. (shrink)

In contrast to most publications on the ethics of paying research subjects, which start by identifying and analyzing major ethical concerns raised by the practice (in particular, risks of undue inducement and exploitation) and end with a set of—more or less well-justified—ethical recommendations for using payment schemes immune to these problems, this paper offers a systematic, principle-based ethical analysis of the practice. It argues that researchers have aprima faciemoral obligation to offer payment to research subjects, which stems from the principle (...) of social beneficence. This principle constitutes an ethical “spine” of the practice. Other ethical principles of research ethics (respect for autonomy, individual beneficence, and justice/fairness) make up an ethical “skeleton” of morally sound payment schemes by providing additional moral reasons for offering participants (1) recompense for reasonable expenses; and (2a) remuneration conceptualized as a reward for their valuable contribution, provided (i) it meets standards of equality, adequacy and non-exploitation, and (ii) it is not overly attractive (i.e., it does not constitute undue inducement for participation or retention, and does not encourage deceptive behaviors); or (2b) remuneration conceptualized as a market-driven price, provided (i) it is necessary and designed to help the study achieve its social and scientific goals, (ii) it does not reinforce wider social injustices and inequalities; (iii) it meets the requirement of non-exploitation; and (iv) it is not overly attractive. The principle of justice provides a strong ethical reason for not offering recompenses for lost wages (or loss of other reasonably expected profits). (shrink)

El objetivo del artículo es presentar el diseño y la evaluación de un taller de prevención y sensibilización contra el acoso sexual. En total 286 estudiantes (224 mujeres y 62 hombres) de distintos grados de la Universidad de las Islas Baleares participaron en el taller y mostraron una alta satisfacción con el taller. 197 participantes incluso dieron la máxima puntuación en todos los 9 ítems del cuestionario de evaluación. Estos resultados animan a impulsar su aplicación en otros estudios y también (...) dentro del marco de formación del personal docente e investigador (PDI) y del personal de administración y servicios (PAS). (shrink)

The significance of political-economic context for scientific citizenship is argued through an analysis of New Zealand’s Royal Commission on Genetic Modification. My intention is not to provide an account of why the commission came to the decisions it did but to illustrate how the political-economic context and the culture of regulatory science both exacerbate public concerns about unacknowledged uncertainty and commercial influence and make it difficult for those concerns to influence the outcomes of public dialogues. The discursive flexibility of science (...) as alternately predictive and provisional silences concerns about uncertainty, while a further interpretive choice of science as the autonomous activities of individuals unconstrained by political-economic context occludes the nature of concerns about commercial influence. Rather than the increasingly prevalent focus on processes of engagement, I argue that it is essential that researchers in this area attend to how public dialogue is placed in relation to the cultures and structures of regulatory science and neoliberalism. (shrink)

In this paper, it is argued that, contrary to some suggestions in the philosophical literature, dispositions cannot replace laws in the description of the physical world. If for a certain type of physical situation a well-working law-based account is available, then it is not possible to describe that situation equally well in terms of dispositions. Using an example consisting of four laws (Coulomb’s law, Newton’s law of gravitation, the rule for the composition of forces and Newton’s second law), it is (...) shown that when one attempts to replace a law-based account with a disposition-based account, the latter turns out to be either less informative or inferior with respect to theoretical virtues, such as simplicity, unification, non-triviality of predictions and explanatory power. Laws are also better suited to deal with interactions and their screening off. Using inference to the best explanation, one can conclude from this comparison that it is laws rather than dispositions that should be included in our ontological picture of nature. (shrink)

This article addresses the issue of linguistic phenomena which, as a legacy of the centuries-old tradition of the Roman Empire, are rooted in Polish jurisdictional texts. The study focused on foreign-language expressions and short texts in Latin, used in judicial decisions. The aim of the study was to determine the function of Latinisms as foreign-language expressions in judicial decisions and how their use influences the communicativeness and persuasiveness of argumentation. During the analysis, it was noticed that Latinisms in jurisdictional texts (...) are used on four levels, including: legal maxims, terminology equivalence, linguistic ornaments and the description of taboo phenomena. On the basis of the identified categories, efforts were made to determine the extent to which Latin strengthens or weakens the power of persuasion of judicial decisions. (shrink)

In this paper the concept of structural power is presented as a philosophical and social category that should be used when modern processes of political, cultural or economic change are considered. The arguments will be presented in three stages: 1. Power - two perspectives, two traditions 2. Structural power - the concept 3. Structural power - as a mechanism of explanation the modern social change. The paper refers to two traditions of analyzing the problem of (...) class='Hi'>power (as a corrective or as a persuasive influence) and shows that concept of structural power can be a link between those two theoretical perspectives. The paper also refers to the problem of modern, macro changes. It will be shown how the concept of structural power, because of its usage of categories like "experts' power,"public discourse meanings" or "legitimization", can be useful in philosophical reflection about contemporary international and national issues. (shrink)

The world's first permanent international criminal tribunal for the prosecution and punishment of the world's most serious crimes was created in 2002. In Bringing Power to Justice? legal scholars, political scientists, and political philosophers respond to fundamental questions about the future of this court and international criminal justice. For instance, will the ICC be undermined by political constraints, given the opposition of major powers, including the United States? What are the implications of holding heads of state responsible for international (...) crimes? Are trials the best response to state crime or would other devices (such as truth commissions) be more suitable? Is retributive justice an appropriate response? The contributors offer indispensable and thoughtful assessment of the future of international criminal justice. (shrink)

This article examines the management of participation in calls to radio phone-in programmes. In the broadcast media, there are increasing occasions for interaction between `professionals' and lay members of the public, particularly within what have come to be known generically as public participation programmes. People call in to phone-in programmes for various reasons; to give opinions, to get advice, and often to ask questions. In the particular phone-ins analysed here, callers are invited to put questions to leading politicians of the (...) day about their election policies. In many institutional contexts for talk the role of questioner has been found to be a more powerful interactional position than the role of answerer. Through an analysis of the organization of the phone-in calls, this article argues that the potentially powerful discourse role of questioner is interactionally `defused' through the participatory framework of the call. The author shows how the mediated interactional structure of these calls limits the range of possible actions available to callers in their institutional position as questioners, and thus produces constraints on what callers can actually achieve in this particular context for institutional talk. (shrink)