Célestin Freinet a été arrêté le 20 mars 1940 comme militant communiste, sur ordre du Préfet des Alpes-Maritimes, et interné dans divers camps du sud de la France jusqu'au mois d'octobre 1941. C'est à " former en l'enfant l'homme de demain ", un enfant plus instruit, plus responsable, plus heureux, que s'est attaché cet infatigable promoteur d'une pédagogie nouvelle coopérative. On retrouvera dans ces lettres l'essentiel de la réflexion éducative contenant en germe ses deux ouvrages majeurs, " l'éducation du travail (...) " et " Essai de psychologie sensible ", écrits lorsque Freinet est assigné à résidence en 1941. Mais le témoignage de cet esprit pénétrant et engagé est également remarquable pour sa valeur historique : son regard éclaire sous un jour encore assez peu connu, la misère morale et matérielle des internés, leurs souffrances et leur détresse, leur puissance à résister aussi. Ce volume épistolaire intéressera à la fois tous les curieux de l'œuvre de Freinet, tous ceux que l'éducation nouvelle et la rénovation de l'enseignement préoccupent, et ceux que ne laisse pas indifférents cette période dramatique de notre Histoire racontée au jour le jour, et à laquelle Elise Freinet apporte un écho attentif et émouvant. (shrink)

Loïc Wacquant’s article ‘Homines in Extremis’ outlines five propositions about habitus that support a broader and richer use of Bourdieu’s famous concept. His article was a response to a new edited volume by Sanchez and Spencer under the title Fighting Scholars. In this article, I support Wacquant’s argument, but suggest that he undersells habitus as a topic of and tool for inquiry. I point to previous conversations about habitus and suggest that we may learn more about social phenomena by engaging (...) the relational aspects of habitus and the social aspects of the incorporation of habitus. (shrink)

'Comparative Philosophy without Borders' consists of nine essays and puts forth an extensive methodology for a redefined comparative philosophy, as presented in the Introduction and Afterword/Afterwards written by Arindam Chakrabarti and Ralph Weber. The nine essays by Tom J. F. Tillemans, Barry Hallen, Chien-hsing Ho, Laurie L. Patton, Arindam Chakrabarti, Masato Ishida, Ralph Weber, Sari Nusseibeh and Sor-hoon Tan draw on various philosophical traditions, academic fields and topics, in order to effectuate what ‘Comparative Philosophy Without Borders’ could be. The clear (...) aim of these essays is to demonstrate and put into practice the methodology presented by the two editors and authors, according to whom performing comparative philosophy transcends establishing it through norms. This definitely constitutes a successfully treated challenge, not only by the authors, but even more by the editors. (shrink)

In the late nineteenth century, British anthropometrists attempted to normalize the practice of measuring bodies as they sought to collate data about the health and racial makeup of their fellow citizens. As the country’s leading anthropometrists, Francis Galton and Charles Roberts worked to overcome suspicion about their motives and tried to establish the value of recording physical dimensions from their subjects’ perspective. For Galton, the father of the eugenics movement, the attainment of objective self-knowledge figured alongside the ranking of one’s (...) physique and faculties against established norms. The competitive tests at Galton’s anthropometric laboratory were meant to help subjects identify their strengths and weaknesses, ultimately revealing their level of eugenic fitness. Roberts, on the other hand, saw the particular value of anthropometric data in informing economic and social policy, but capitalized on parents’ interest in their children’s growth rates to encourage regular monitoring of their physical development. While both Galton and Roberts hoped that individuals would ultimately furnish experts with their anthropometric data to analyze, they both understood that the public would need to have explained the practical purposes of such studies and to familiarize themselves with their methods. This article argues that while anthropometry did not become a fully domestic practice in this period, it became a more visible one, paving the way for individuals to take an interest in metrical evaluations of their bodies in the coming years. (shrink)

Wolff advocates the mathematical method, which consists in chains of syllogisms that proceed from axioms and definitions to theorems, for achieving scientific certainty in branches of philosophy like ontology and physics. By contrast, in ‘The Discipline of Pure Reason in its Dogmatic Use’ Kant significantly limits the efficacy of this method in philosophy. In this paper I investigate an under-examined result of the Discipline: Kant’s claim that his system of philosophy does not contain “dogmata”. By identifying “dogmata” in Wolff’s system (...) of physics, I argue that, for Kant, they are propositions that uncritically deploy ideas of reason. I conclude that the Discipline extends criticisms raised in the Transcendental Dialectic to any erroneous use of the mathematical method in philosophy. (shrink)

Advocates of scientic realism typically respond to the challenge of the pessimistic meta-induction by turning to the history of science. The episode most frequently discussed is the shift from Fresnel's wave theory of light to Maxwell's electromagnetism. This particular history is taken to represent one of the hardest problems for the realist, for while it exhibits continuity on the empirical level, it simultaneously represents a dramatic shift in ontology. Thus, various authors have proposed methods for defeating the pessimistic meta-induction based (...) solely on consideration of the Fresnel-Maxwell case. In this paper, I present another case study from physics--Fermi's 1934 theory of beta-decay and the ensuing search for a universal description of weak interactions. I argue that the degree of success of two recent proposals for scientic realism--that of John Worrall (1989, 1994, 2007) and Juha Saatsi (2005)--changes importantly in light of this new case study. (shrink)

In In their article Morain and Largent suggest looking “beyond the investigator-participant dyad” to understand the ethical obligations in embedded research using Electronic Health Record (EHR) dat...

Can agents rationally inquire into things that they know? On my view, the answer is yes. Call this view the Compatibility Thesis. One challenge to this thesis is to explain why assertions like “I know that p, but I’m wondering whether p” sound odd, if not Moore-Paradoxical. In response to this challenge, I argue that we can reject one or both premises that give rise to it. First, we can deny that inquiry requires interrogative attitudes. Second, we can deny the (...) ignorance norm, on which agents are not permitted to both know and have interrogative attitudes, such as wondering. I argue that there are compelling reasons to deny the former and reasons to question the latter. Both options pave the way for further work on further inquiry. (shrink)

This essay bridges together social network and institutional perspectives to examine how women on boards, by breaking up directors’ homophilous networks, contribute to board effectiveness. It proposes that through real and symbolic representations, women enhance perceptions of the board’s instrumental, relational, and moral legitimacy, leading to increased perceptions of the board’s trustworthiness which in turn fosters shareholders’ trust in the firm. Envisioning the gender diversification of boards as an event of institutional change, this article considers the critical role of shareholder (...) activists and legislative support from the SEC in the deinstitutionalization of old boys’ networks and the reinstitutionalization of gender diverse boards. This work is substantiated with evidence obtained through 34 semi-structured interviews, archival and documentary evidence. (shrink)

Boolean games are a logical setting for representing strategic games in a succinct way, taking advantage of the expressive power and conciseness of propositional logic. A Boolean game consists of a set of players, each of which controls a set of propositional variables and has a specific goal expressed by a propositional formula. We show here that Boolean games are a very simple setting, yet sophisticated enough, for analysing the formation of coalitions. Due to the fact that players have dichotomous (...) preferences, the following notion emerges naturally: a coalition in a Boolean game is efficient if it has the power to guarantee that all goals of the members of the coalition are satisfied. We study the properties of efficient coalitions. (shrink)

From a liberationist, feminist, and Catholic point of view, this article attempts to understand the decision of abortion. People are constantly testing their principles and values against the question of abortion. Advances in technology, the rise of communitarianism and the rejection of individualism, and the commodification of children are factors in the way in which the abortion debate is being constructed in society. The paper offers solutions to end the ugliness of the abortion debate by suggesting that we would be (...) able to progress further on the issue of abortion if we looked for the good in the opposing viewpoint. The article continues with a discussion of Catholics For a Free Choice's position on abortion, and notes firstly that there is no firm position within the Catholic Church on when the fetus becomes a person; secondly that the principle of probablism in Roman Catholicism holds that where the church cannot speak definitively on a matter of fact (in this case, on the personhood of the fetus), the consciences of individual Catholics must be primary and respected, and thirdly that the absolute prohibition on abortion by the church is not infallible. In conclusion, only the woman herself can make the abortion decision. (shrink)

When using Artificial Intelligence (AI) in medical settings, the critical role of humans in decision-making and accountability is often emphasized using terms such as “human-in-the-loop (HITL).” Sa...

It is widely accepted that consent is a normative power. For instance, consent can make an impermissible act permissible. In the words of Heidi Hurd, it “turns a trespass into a dinner party... an invasion of privacy into an intimate moment.” In this chapter, I argue against the assumption that consent has such robust powers for moral transformation. In particular, I argue that there is a wide range of sex that harms or wrongs victims despite being consensual. Moreover, these cases (...) are not limited to those where con- sent is vitiated by background conditions. I start by calling this category of consensual sex Bad Sex. I then distinguish subspecies of this category, including psychological pressure, social coercion, and epistemically unsafe sex. I end by responding to an objection on which we should treat at least some subspecies of Bad Sex as rape. Though this alternative proposal is often motivated by ameliorative and strategic considerations, I argue that such considerations actually count against collapsing the categories of Bad Sex and rape. (shrink)

Examines the social aspect of moral agency, building an account of critical engagement that focuses on the transformation of moral attention through communicative exchange, rather than on matters of judgment or on behavioral outcomes.

Belief revision is concerned with belief change fired by incoming information. Despite the variety of frameworks representing it, most revision policies share one crucial feature: incoming information outweighs current information and hence, in case of conflict, incoming information will prevail. However, if one is interested in representing the way actual humans revise their beliefs, one might not always want for the agent to blindly believe everything they are told. This manuscript presents a semantic approach to non-prioritized belief revision. It uses (...) plausibility models for depicting an agent’s beliefs, and model operations for displaying the way beliefs change. The first proposal, semantically-based screened revision, compares the current model with the one the revision would yield, accepting or rejecting the incoming information depending on whether the ‘differences’ between these models go beyond a given threshold. The second proposal, semantically-based gradual revision, turns the binary decision of acceptance or rejection into a more general setting in which a revision always occurs, with the threshold used rather to choose ‘the right revision’ for the given input and model. (shrink)

Der folgende Text von Elise v. Bernstorff ist als Transmission des Motivs der Scham aus dem Feld Theater in das Feld Schule entstanden. Er beruht auf einer Situation in einer kurzfristig anberaumten Vertretungsstunde in einer zweiten Klasse der Grundschule einer ländlichen Kleinstadt.

Im Folgenden beschreibt Elise v. Bernstorff den künstlerisch-forschenden Ansatz einer spezifisch theater-/ performancewissenschaftlichen Blickweise in (dem ersten Augenschein nach) theaterfremde Felder und das Interesse, Selbstverständnis, die Voraussetzungen, mit denen sie sich als Theaterwissenschaftlerin in das Feld Schule begibt.

Fitness apps on mobile devices are gaining popularity, as more people are engaging in self-tracking activities to record their status of fitness and exercise routines. These technologies also evolved from simply recording steps and offering exercise suggestions to an integrated lifestyle guide for physical wellbeing, thus exemplify a new era of "quantified self" in the context of health as individual responsibility. There is a considerable amount of literature in science, technology and society (STS) studies looking at this phenomenon from different (...) perspectives, linking it with the sociology of self-surveillance and neoliberal regimes of health. However, the human-technology interface, through which the micro- (behavioral) and macro- (social) aspects converge, still calls for extensive examination. This paper approaches this topic from the postphenomenological perspective, in combination with empirical studies of design analysis and interviews of fitness apps, to reveal the human-technology link between the design elements and people's perception through the direct experiences and interpretations of technology. It argues that the intentionality of self-tracking fitness app designs mediates the human-technology relations by "guiding" people into a quantified knowledge regime. It shapes the perceptions of fitness and health with representations of meanings about a "good life" of individual success and management. This paper also gives a critique of current individual, performance-oriented fitness app designs and offers the possibility of seeking alternatives through the multistable nature of human-technology relations—how altering interpretation and meaning of the design with a cultural or social context could change the form of technological embodiment. (shrink)

Can you rationally double-check what you already know? In this paper, I argue that you can. Agents can know that something is true and rationally double-check it at the very same time. I defend my position by considering a wide variety of cases where agents double-check their beliefs to gain epistemic improvements beyond knowledge. These include certainty, epistemic resilience, and sensitivity to error. Although this phenomenon is widespread, my proposal faces two types of challenges. First, some have defended ignorance norms, (...) on which agents are only allowed to inquire about things they don't already know. Second – motivated by strong conceptions of belief or pragmatic encroachment – some have argued that double-checking destroys knowledge. I argue that these competing views fail to capture both the epistemic value of double-checking and the many reasons why agents might double-check. Moreover, they rely on overly strong assumptions about what inquiry, knowledge, or belief requires. Finally, I marshal linguistic data in favor of the compatibility of knowledge and double-checking. (shrink)

Experimental work has shown that spatial experiences influence spatiotemporal metaphor use. In these studies, participants are asked a question that yields different responses depending on the metaphor participants use. It has been claimed that English speakers are equally likely to respond with either variant in the absence of priming. Related studies testing non-spatial experiences demonstrate varied results with a wide range of primes. Here, the effects of eye movement and stimuli presentation modality on comprehension of this question are investigated in (...) different formats. In addition, the results of prior reported controls are re-analyzed in a meta-analysis to verify reliable ambiguity of the test question. Results suggest that English speakers have a baseline preference for the Moving Ego metaphor variant, with a stronger preference in verbal rather than written presentation. The findings have implications both for interpretation of prior studies' results and future study designs. (shrink)

While there has been significant discussion in the health sciences and ethics literatures about problems associated with publication practices (e.g., ghost- and gift-authorship, conflicts of interest), there has been relatively little practical guidance developed to help researchers determine how they should fairly allocate credit for multi-authored publications. Fair allocation of credit requires that participating authors be acknowledged for their contribution and responsibilities, but it is not obvious what contributions should warrant authorship, nor who should be responsible for the quality and (...) content of the scientific research findings presented in a publication. In this paper, we review arguments presented in the ethics and health science literatures, and the policies or guidelines proposed by learned societies and journals, in order to explore the link between author contribution and responsibility in multi-author multidisciplinary health science publications. We then critically examine the various procedures used in the field to help researchers fairly allocate authorship. (shrink)

En 2016, au plus fort de la crise de l’accueil des réfugiés en Europe, Elise Pestre, psychanalyste et maîtresse de conférences à l’Université Paris Cité, participe à une recherche transdisciplinaire qui a comme terrain le « territoire-symptôme » de la « Jungle » de Calais et de quelques autres « zones-frontières ». En 2022, elle publie La vie dans la jungle aux PUF, ouvrage dans lequel elle rend compte de son expérience de psychanalyste plongée dans l’épaisseur de la frontière. (...) Cet entretien revient avec elle sur cette expérience et ce projet de recherche. (shrink)

Background There has been significant discussion about the need to manage conflict of interest (COI) in medical journals. This has lead many journals to implement policies to manage COI for authors and reviewers; however, surprisingly little attention has been focused on the COI of journal editors. Objective The goal of this exploratory study was to determine whether the policies were accessible to the public and to researchers, and to discuss the potential impact on public transparency. Design The authors conducted an (...) internet search of editor COI policy instruments that have been developed, implemented and communicated by the top 10 peer-reviewed medical journals (2010 ISI Web of Knowledge Impact Factor), and assessed their general accessibility by gauging the level of difficulty in navigating the journal's website (number of clicks to find the policy instruments). Results Only four of the 10 medical journals (40%) in this study have accessible COI policy directives that include editors (JIM, PLoS Medicine, AIM, CMAJ). One journal (NEJM) had an editorial on the subject, and another (The Lancet) mentioned editor COI in their general guidelines. These documents are not readily accessible; starting from the journal's main website at least four clicks are needed to access these documents. Conclusion These results suggest that there is a general lack of accessible editor COI policy instruments among leading medical journals, something that may consequently have a negative impact on the trust accorded to these journals. (shrink)

In 1953, James Watson and Francis Crick were named as the authors of the publication “Molecular Structure of Nucleic Acids; a Structure for Deoxyribose Nucleic Acid” in the journal Nature. While historians have debated the relevance and importance of various discoveries in molecular science, there is little dispute as to the major significance of the discovery of the double-helix structure of deoxyribose nucleic acid. But what of Rosalind Franklin? There is little mention in science manuals of the contribution of the (...) biophysicist Rosalind Franklin to the discovery of the structure of DNA. Watson has admitted that he used Franklin’s... (shrink)

This essay assesses the possibilities for poetic-liturgical compositions, such as requiems, to promote Christian public engagement when legal frameworks are perceived to be inadequate for securing justice. This essay addresses the perception that legal statutes and procedures failed to honor the personhood of two particular African American males and discusses how aesthetic responses have been used to counter the devaluing of their lives. One such response, Marilyn Nelson's poem Fortune's Bones: The Manumission Requiem, questions the law's failure to protect an (...) eighteenth-century enslaved man. Another requiem memorializes Michael Brown after the teen's killing by a police officer in 2014. This essay discusses these particular aesthetic responses and then evaluates the possibilities for the requiem as a Christian practice of civic engagement by appropriating Charles Mathewes's articulation of hopeful citizenship. In cases when the law is perceived to be complicit in devaluing African American personhood, liturgy can be a meaningful Christian response. (shrink)

In this work, we question the ability of existing ranking-based semantics to capture persuasion settings, emphasising in particular the phenomena of procatalepsis and of fading. Some widely accepted principles of ranking-based semantics are incompatible with a faithful treatment of these phenomena, which means that no existing ranking-based semantics can capture these two principles together. This motivates us to introduce a new parametrized ranking-based semantics based on the notion of propagation which extends the existing propagation semantics 139–150) by adding an additional (...) parameter allowing us to gradually decrease the impact of arguments when the length of the path between two arguments increases. We show that this parameter gives the possibility of choosing if one wants to satisfy the property Void Precedence or not and to control the scope of the impact of the arguments. We also propose an experiment to show that the new semantics remains stable when this parameter varies and an axiomatic evaluation to compare it with existing ranking-based semantics in the literature. (shrink)

(2013). Evolutionary modules and Bayesian facilitation: The role of general cognitive resources. Thinking & Reasoning: Vol. 19, No. 1, pp. 27-53. doi: 10.1080/13546783.2012.713177.

Prior analyses of Grete Hermann’s 1935 essay on the philosophical foundations of quantum mechanics have taken her central aim to be the recovery of an appropriately Kantian notion of causality from this new indeterministic physics. I argue that if one instead reads this essay as primarily an investigation into the meaning and implications of the relative nature of quantum mechanics—not only for physics, but also for fields as different as ethics—certain dimensions of her work appear with greater clarity. Among these (...) are her particular Kantian interpretation of Bohr’s complementarity and correspondence principles, her unique understanding of the quantum-classical divide, the failure of Kant’s a priori categories of space, time and causality to apply literally—even for obtaining classical natural knowledge, and the splitting of truth. (shrink)

This paper investigates the right of exit from religious associations. The liberal state has a compelling interest in overseeing exit, even if it implies some loss in religious group autonomy. Members should not be bound by rules they find unconscionable. They should be free to leave and able to do so. To enable exit, the paper advocates the use of membership contracts. Religious associations should issue a contract for members working for, residing in, or donating money to the association under (...) a regime of legal exemptions. The membership contract publicises the right of exit and offers a basis for negotiating and contesting its terms. It makes exit less “unthinkable” to members and helps tackle unreasonable economic costs to exit. (shrink)

In this paper, I motivate a puzzle about epistemic rationality. On the one hand, there seems to be something problematic about frequently changing your mind. On the other hand, changing your mind once is often permissible. Why do one-off changes of mind seem rationally permissible, even admirable, while constant changes seem quintessentially irrational? The puzzle of fickleness is to explain this asymmetry. To solve the puzzle, I propose and defend the Ratifiable Reasoning Account. According to this solution, as agents redeliberate, (...) they gain two types of evidence. First, they gain inductive evidence that they will not stably settle their belief. Second, this inductive evidence affords higher-order evidence that they are unreliable at assessing the matter at hand. The fact that fickle agents gain this higher-order evidence explains why fickleness can be epistemically—not just practically—irrational. In addition to solving the puzzle, my account captures a wide range of contextual factors that are relevant for our judgments. (shrink)

Recently I published an article in this journal entitled “Less interpretation and more decoherence in quantum gravity and inflationary cosmology” :1019–1045, 2015). This article generated responses from three pairs of authors: Vassallo and Esfeld :1533–1536, 2015), Okon and Sudarsky :852–879, 2016) and Fortin and Lombardi. In what follows, I reply to the criticisms raised by these authors.

This article is a co-written reflection on the process of curating and programming Printing Solidarity: Tricontinental Graphics from Cuba (2021–2022). Held at Stony Brook University's Paul W. Zuccaire Gallery, the exhibition featured over sixty posters and printed matter produced mostly in the 1960s–1970s by the Organization of Solidarity with the People of Asia, Africa, and Latin America (OSPAAAL) in Havana. As an experiment in pedagogical curating, the yearlong project spanned the isolation from, return to, and re-envisioning of inperson learning during (...) the COVID-19 pandemic. Reflecting on our inspirations, intentions, and challenges, we argue for the role of art objects in activating material-based, in-person learning on campus and consider the value of academic collaboration, cross-regional research, and experimental pedagogies. The project offered an opportunity to revisit the Cold War-period politics of global solidarity in today's pandemic era while exploring what it would mean to study art today from the question of solidarity rather than division. (shrink)

This study focuses on a third-party perspective of idiosyncratic deals. More specifically, we look into the differential judgments co-workers make about i-deals in their work environment, as well as their reactions. Based on equity theory, we examine to what extent the content of the i-deal and the work context explain co-worker judgments regarding i-deal fairness in addition to subsequent voice behavior. A vignette study with 1988 respondents shows that when i-deals are considered distributively unfair, co-workers try to restore equity through (...) voice behavior, thereby making the i-deal less effective. Furthermore, i-deals spark more distributive injustice perceptions and voice behavior in a highly interdependent work context. Finally, on average, financial bonuses were considered most distributively unfair and, thus, trigger more voice behavior. These results have important implications for i-deal literature as they uncover the criteria that co-workers use to judge i-deals and shape their reactions. (shrink)

Twenty psychologists were interviewed about an ethical dilemma that they had found to be particularly difficult to resolve. In just under half of the cases the dilemma involved a perceived conflict of ethical principles (e.g., the welfare of the consumer vs. the right to privacy). In the other cases, the psychologists were prevented from following an ethically prescribed course of action by some nonethical consideration such as contractural obligation, legal requirement, or the demands of an employer. We discuss the implications (...) of these two sorts of dilemmas for psychological practice and make some suggestions for proactive approaches to ethical problem solving. (shrink)

Toward a Postmodernist View of Conflict of Interest Content Type Journal Article Category Case Studies Pages 1-2 DOI 10.1007/s11673-012-9359-x Authors Elise Smith, Doctorat en sciences humaines appliquées, option bioéthique, Programmes de bioéthique, Département de médecine sociale et préventive, Université de Montréal, C.P. 6128, succ. Centre-ville, Montréal, Québec, Canada H3C 3J7 Journal Journal of Bioethical Inquiry Online ISSN 1872-4353 Print ISSN 1176-7529.

Grete Hermann was a pupil of mathematical physicist Emmy Noether, follower and co-worker of neo-Kantian philosopher Leonard Nelson, and an important intellectual figure in post-war German social democracy. She is best known for her work on the philosophy of modern physics in the 1930s, some of which emerged from intense discussions with Heisenberg and Weizsäcker in Leipzig. Hermann’s aim was to counter the threat to the Kantian notion of causality coming from quantum mechanics. She also discussed in depth the question (...) of ‘hidden variables’ and provided an extensive analysis of Bohr’s notion of complementarity. This volume includes translations of Hermann’s two most important essays on this topic: one hitherto unpublished and one translated here into English for the first time. It also brings together recent scholarly contributions by historians and philosophers of science, physicists, and philosophers and educators following in Hermann’s steps. Hermann's work places her in the first rank among philosophers who wrote about modern physics in the first half of the last century. Those interested in the many fields to which she contributed will find here a comprehensive discussion of her philosophy of physics that places it in the context of her wider work. (shrink)

I argue that quantum decoherence—understood as a dynamical process entailed by the standard formalism alone—carries us beyond conceptual aspects of non-relativistic quantum mechanics deemed insurmountable by many contributors to the recent quantum gravity and cosmology literature. These aspects include various incarnations of the measurement problem and of the quantum -to-classical puzzle. Not only can such problems be largely bypassed or dissolved without default to a particular interpretation, but theoretical work in relativistic arenas stands to gain substantial physical and philosophical insight (...) by incorporating decoherence phenomena. (shrink)

During the late 1970s and early 1980s, population geneticists sought computational solutions to integrate greater numbers of genetic traits into their debates about the ancestral relationships of human groups. At the same time, geneticists’ longstanding assumptions about Jewish communities, especially Ashkenazim, were challenged by a series of social, political, and intellectual developments. In Israel, the entrenched cultural and political dominance of Ashkenazi Jews faced major social upheaval. Meanwhile, to counteract lingering anti-Semitism in Europe and the United States, Arthur Koestler’s The (...) Thirteenth Tribe and Raphael Patai and Jennifer Patai Wing’s The Myth of the Jewish Race argued that Jewish identity was not connected to biological ancestry from the ancient Israelites. Drawing on scientific publications and archived correspondence, this article reconstructs a transnational social history showing how geneticists responded to these shifting claims about Ashkenazi identity and ancestry. Many argued that these claims could be tested using new statistical models, which provided allegedly more “objective” estimates of ancestral gene frequencies and histories of population admixture. However, they simultaneously engaged in heated debates over the relative superiority of competing statistical approaches. These debates reveal how the transnational reverberations of Israeli ethnic politics and Euro-American anti-Semitism affected the development of new calculations for genetic admixture, permanently shifting the assumptions of population genetic research on Jewish populations as well as other human groups. (shrink)