We investigated the current-voltage I(V) characteristics of GaAs/AlAs double-barrier heterostructures. A fine periodic structure of the resonant tunnel current has been revealed. We attribute it to a sequence of the collective excitations, presumably of the coupled plasmon-phonon type, that are induced in the heavily doped collector region by hot electrons which escape from the quantum well. An oscillatory structure appears also in the valley regions of the I(V) curve under a high magnetic field parallel to the current. It is due (...) to the off-resonance tunnelling between the Landau-quantized states of the emitter and quantum well. Particular phonon-assisted processes in the tunnelling have been identified. (shrink)

In light of research which, since the publication of Rousseau and Porter’s Ferment of Knowledge, has demonstrated the continued centrality of magic and the occult to what may be termed “scientific knowledge” in the early modern period, this essay argues that one domain of practice where these concerns remained paramount well into the eighteenth century is the consumption of recipes. Whether exchanged between individuals or collected in print format, these mobile informational media relied on forms of proof under­pinned by personal (...) experience and collective accreditation, with an inductive and empirical focus that was distinct from Cartesian deduction. Because the culture of recipe exchange was so widespread, encompassing scholars, savants and lay readers, secrets offered ways to challenge strict mechanistic interpretations in favour of a view of the natural world as informed by unseen active powers, particularly where the virtues of materials such as magnets or medicinal simples were concerned. Using private library catalogues of book owners, a commonplace book and a scientific periodical produced in France during the decades after 1700, the article traces the way secrets culture continued to foster an epistemological space in which mechanical explanations evidently fell short of accounting for quotidian experience. (shrink)

Both patients and clinicians frequently report problems around communicating and assessing pain. Patients express dissatisfaction with their doctors and doctors often find exchanges with chronic pain patients difficult and frustrating. This chapter thus asks how we could improve pain communication and thereby enhance outcomes for chronic pain patients. We argue that improving matters will require a better appreciation of the complex meaning of pain terms and of the variability and flexibility in how individuals think about pain. We start by examining (...) the various accounts of the meaning of pain terms that have been suggested within philosophy and suggest that, while each of the accounts captures something important about our use of pain terms, none is completely satisfactory. We propose that pain terms should be viewed as communicating complex meanings, which may change across different communicative contexts, and this in turn suggests that we should view our ordinary thought about pain as similarly complex. We then sketch what a view taking seriously this variability in meaning and thought might look like, which we call the “polyeidic” view. According to this view, individuals tacitly occupy divergent stances across a range of different dimensions of pain, with one agent, for instance, thinking of pain in a much more “bodycentric” kind of way, while another thinks of pain in a much more "mindcentric” way. The polyeidic view attempts to expand the multidimensionality recognised in, e.g., biopsychosocial models in two directions: first, it holds that the standard triumvirate— dividing sensory/cognitive/affective factors— needs to be enriched in order to capture important distinctions within the social and psychological dimensions. Second, the polyeidic view attempts to explain (at least in part) why modulation of experience by these social and psychological factors is possible in the first place. It does so by arguing that because the folk concept of pain is complex, different weightings of the different parts of the concept can modulate pain experience in a variety of ways. Finally, we argue that adopting a polyeidic approach to the meaning of pain would have a range of measurable clinical outcomes. (shrink)

This chapter examines the way the two main philosophies of Heidegger and Derrida, come into critical contact with each other. Derrida represents his own thinking as a development of Heideggerian thought. The chapter discusses Derrida's engagement with Heidegger spanned nearly his entire philosophical career. Derrida's exploration of Heidegger's spiritual idiom, while somewhat unusual, is not unconnected with his other writings on Heidegger. Through tracing Heidegger's spiritual idiom, Derrida seeks to bring out what is at stake in those aspects of Heidegger's (...) thought he finds uncertain or, to put it more bluntly, questionable. In tracing Derrida's reading of Heidegger in Of Spirit, then, one shall in effect be crossing two pathways. One uses the medium of spirit to introduce certain critical questions for Heideggerian philosophy, specifically questions that relate to the political and geo political aspects of Heidegger's work. (shrink)

Scientists, philosophers, and policymakers disagree about how to define microaggression. Here, we offer a taxonomy of existing definitions, clustering around (a) the psychological motives of perpetrators, (b) the experience of victims, and (c) the functional role of microaggression in oppressive social structures. We consider conceptual and epistemic challenges to each and suggest that progress may come from developing novel hybrid accounts of microaggression, combining empirically tractable features with sensitivity to the testimony of victims.

In this article, we aim to map out the complexities which characterise debates about the ethics of vaccine distribution, particularly those surrounding the distribution of the COVID-19 vaccine. In doing so, we distinguish three general principles which might be used to distribute goods and two ambiguities in how one might wish to spell them out. We then argue that we can understand actual debates around the COVID-19 vaccine – including those over prioritising vaccinating the most vulnerable – as reflecting disagreements (...) over these principles. Finally, we shift our attention away from traditional discussions of distributive justice, highlighting the importance of concerns about risk imposition, special duties, and social roles in explaining debates over the COVID-19 vaccine. We conclude that the normative complexity this article highlights deepens the need for decision-making bodies to be sensitive to public input. (shrink)

Understanding in Epistemology Epistemology is often defined as the theory of knowledge, and talk of propositional knowledge has dominated the bulk of modern literature in epistemology. However, epistemologists have recently started to turn more attention to the epistemic state or states of understanding, asking questions about its nature, relationship … Continue reading Understanding in Epistemology →.

Minimal Semantics asks what a theory of literal linguistic meaning is for - if you were to be given a working theory of meaning for a language right now, what would you be able to do with it? Emma Borg sets out to defend a formal approach to semantic theorising from a relatively new type of opponent - advocates of what she call 'dual pragmatics'. According to dual pragmatists, rich pragmatic processes play two distinct roles in linguistic comprehension: as (...) well as operating in a post-semantic capacity to determine the implicatures of an utterance, they also operate prior to the determination of truth-conditional content for a sentence. That is to say, they have an integral role to play within what is usually thought of as the semantic realm. Borg believes dual pragmatic accounts constitute the strongest contemporary challenge to standard formal approaches to semantics since they challenge the formal theorist to show not merely that there is some role for formal processes on route to determination of semantic content, but that such processes are sufficient for determining content. Minimal Semantics provides a detailed examination of this school of thought, introducing readers who are unfamiliar with the topic to key ideas like relevance theory and contextualism, and looking in detail at where these accounts diverge from the formal approach. Borg's defence of formal semantics has two main parts: first, she argues that the formal approach is most naturally compatible with an important and well-grounded psychological theory, namely the Fodorian modular picture of the mind. Then she argues that the main arguments adduced by dual pragmatists against formal semantics - concerning apparent contextual intrusions into semantic content - can in fact be countered by a formal theory. The defence holds, however, only if we are sensitive to the proper conditions of success for a semantic theory. Specifically, we should reject a range of onerous constraints on semantic theorizing (e.g., that it answer epistemic or metaphysical questions, or that it explain our communicative skills) and instead adopt a quite minimal picture of semantics. (shrink)

Microaggressions are seemingly negligible slights that can cause significant damage to frequently targeted members of marginalized groups. Recently, Scott O. Lilienfeld challenged a key platform of the microaggression research project: what’s aggressive about microaggressions? To answer this challenge, Derald Wing Sue, the psychologist who has spearheaded the research on microaggressions, needs to theorize a spectrum of aggression that ranges from intentional assault to unintentional microaggressions. I suggest turning to Bonnie Mann’s “Creepers, Flirts, Heroes and Allies” for inspiration. Building from Mann’s (...) richer theoretical framework will allow Sue to answer Lilienfeld’s objection and defend the legitimacy of the concept, ‘microaggression’. (shrink)

This chapter offers a brief analysis of the problems facing Bonnett's attempt to articulate a richer conception of thinking. Bonnett states, authentic thinking and understanding require that one become the originators and authors of their own thinking, as against merely reflecting the thoughts of others. In order to deflect the criticism that the account is promoting a self‐centred view of thinking, Bonnett introduces the concept of self referencing, which he describes as the determination to understand what one learns in terms (...) of one's own experiences. Bonnett states, the discipline and rigour of poetic thinking are rooted in the underlying sense of personal responsibility. One of the main flaws with Bonnett's account is that he simply does not engage in a careful enough reading of the philosophical accounts of thinking he draws upon, especially the Heideggerian accounts of being in the world and truth. (shrink)

This chapter explores the similarities that exist between two accounts of thinking presented by philosophers who are usually held to belong to differing, even conflicting, philosophical traditions. These are the accounts of Gilbert Ryle and Martin Heidegger. By situating Ryle in relation to Heidegger, the chapter seeks to show that there is an alternative reading of Ryle and one that problematises any straightforward understanding of him as a partisan of the rationalistic account. Ryle's first criticism takes issue with the way (...) Heidegger turns knowledge into a derivative mode of experience through his account of being in the world. According to Ryle, Heidegger is fundamentally mistaken in doing so, quite simply because knowledge is in fact a precondition for having a relation to things in the world in the first place. Heidegger draws a distinction between two differing conceptions of truth: aletheia and adequatio. (shrink)

This chapter considers a thinker Jacques Derrida, who in some ways inherits the Heideggerian legacy and yet also problematises and puts it to work in new ways. Like Heidegger, the insights raised by Derrida's philosophy in respect to the nature of human thinking come by way of his exploration of the relation between thought and language. Derrida in many ways comes close to one of the key accounts of language afforded by Ordinary Language philosophy, namely that of John Austin. The (...) chapter shows how Derrida's own account of language enables such a surpassing and demonstrates that this is not by way of any bizarre, farfetched man oeuvres but is rather the result of a commitment to remaining faithful and attentive to the actual workings of language. It explores Derrida's account of signification as it develops from his critical confrontation with structuralism and De Saussure. (shrink)

This chapter considers certain key features of Austin's philosophy. It discusses the under recognised affinities that exist between the work of Derrida and Austin, particularly concerning their philosophical methods and their respective attempts to work against the traditional, representation list account of language. The chapter exemplifies the manner in which Derrida nevertheless presents himself as going beyond Austin's philosophy in certain crucial ways, by attending to the criticisms he levels at Austin in his paper ‘Signature Event Context’. It describes Derrida's (...) account by assessing whether his critique of Austin holds, a task that is aided by an exploration of Stanley Cavell's critique of Derrida's reading of Austin. Finally, through appraising Cavell and Derrida's readings of Austin, the chapter argues that Derrida's critique can in fact be defended and in a manner that serves understand Derrida's account of language and thought in certain significant ways. (shrink)

Emma Borg examines the relation between semantics and pragmatics, and assesses recent answers to fundamental questions of how and where to draw the divide between the two. She argues for a minimal account of the interrelation between them--a 'minimal semantics'--which holds that only rule-governed appeals to context can influence semantic content.

Starting with service robotics and industrial robotics, this paper aims to suggest philosophical reflections about the relationship between body and machine, between man and technology in our contemporary world. From the massive use of the cell phone to the robots which apparently “feel” and show emotions like humans do. From the wearable exoskeleton to the prototype reproducing the artificial sense of touch, technological progress explodes to the extent of embodying itself in our nakedness. Robotics, indeed, is inspired by biology in (...) order to develop a new kind of technology affecting human life. This is a bio-robotic approach, which is fulfilled in the figure of the cyborg and consequently in the loss of human nature. Today, humans have reached the possibility to modify and create their own body following their personal desires. But what is the limit of this achievement? For this reason, we all must question ourselves whether we have or whether we are a body. (shrink)

The C3 Framework encourages ambitious inquiry-based social studies teaching. While inquiry is regularly recommended as a preferred pedagogy, research has shown that social studies teachers rarely engage students in inquiry. This exploratory study surveyed social studies teachers in one school district in a southeastern state to update our understanding of teachers’ instructional beliefs and practices related to inquiry and the C3 Framework. Survey responses were analyzed using descriptive statistics and open coding. Findings indicate that the majority of teachers use instructional (...) practices that may be supportive of the C3 Framework and that the ideas within the C3 Framework resonate with most respondents. At the same time, teachers reported challenges with some key concepts within the Framework, such as taking informed action in the classroom and using questions to initiate an inquiry. While the idea of inquiry as espoused by the C3 Framework resonated with teachers, the extent to which they both believe in and practice inquiry methods is unclear and necessitates further study. This study is an initial step to inform future research and efforts to implement the C3 Framework in K-12 social studies classrooms. (shrink)

In this study, we analyzed the academic integrity policies of colleges in Ontario, Canada, casting a specific lens on contract cheating. We extracted data from 28 individual documents from 22-publicly-funded colleges including policies and procedures (n = 27) and code of conduct (n = 1). We analyzed the characteristics of the documents from three perspectives: (a) document type and titles; (b) policy language; and (c) policy principles. Then we examined five core elements of the documentation including (a) access; (b) approach; (...) (c) responsibility; (d) detail; and (e) support. Key findings revealed that specific and direct language pertaining to contract cheating was largely absent from the policy documents, that underlying policy principles lacked clear definition, and that exemplary policy has yet to be developed in this context. We conclude with recommendations for increased policy research in the area of academic integrity and a call for policy revision in Canadian higher education institutions to more explicitly address the issue of contract cheating, as well as provide more support to students and other campus stakeholders to better understand how contract cheating impacts and impedes teaching and learning. (shrink)

In 1798, the National Institute and the French minister of foreign relations invited European countries to send delegations of science practitioners to Paris to finalise the values of the metre and the kilogram. This article reads the event as part of a wider attempt to establish the political relevance of international scientific consensus and include scientific exchanges in the diplomatic culture of post-revolutionary Europe. At the end of the 18th century, the scope and methods of both the sciences and diplomacy (...) were being renegotiated. French academicians hoped that the new system of weights and measures would at once facilitate international scientific exchanges and advertise that new authority should be politically invested in savants. During the Directory, part of the political elite hoped to stabilise the Revolution and forge an international order where the Republic could coexist with old regime monarchies. This entailed focusing diplomatic negotiations on commercial development, something a shared metrological system could foster. The conference was the product of the alliance between the two groups. Foreign responses to the project reveal the novelty of the association between scientific discussions and diplomatic negotiations. Furthermore, European savants and governments did not agree that metrological reforms fell primarily under the expertise of science practitioners, rather than under that of trading actors or administrators. The conference did not produce consensus on the suitability of the metric system or on the feasibility of programmes for the unification of weights and measures. It was more successful at promoting precision and rationality as key parameters to assess metrological systems and science practitioners as main experts in the matter. (shrink)

It is well established that the temporal proximity of two events is a fundamental cue to causality. Recent research with adults has shown that this relation is bidirectional: events that are believed to be causally related are perceived as occurring closer together in time—the so‐called temporal binding effect. Here, we examined the developmental origins of temporal binding. Participants predicted when an event that was either caused by a button press, or preceded by a non‐causal signal, would occur. We demonstrate for (...) the first time that children as young as 4 years are susceptible to temporal binding. Binding occurred both when the button press was executed via intentional action, and when a machine caused it. These results suggest binding is a fundamental, early developing property of perception and grounded in causal knowledge. (shrink)

European Journal of Philosophy, Volume 29, Issue 1, Page 74-89, March 2021.

At first glance, hate speech and microaggressions seem to have little overlap beyond being communicated verbally or in written form. Hate speech seems clearly macro-aggressive: an intentional, obviously harmful act lacking the ambiguity (and plausible deniability) of microaggressions. If we look back at historical discussions of hate speech, however, many of these assumed differences turn out to be points of similarity. The harmfulness of hate speech only became widely acknowledged after a concerted effort by critical race theorists, feminists, and other (...) activists. Before the 1990s, slurs were widely considered socially acceptable behavior: mere jokes that weren’t intended to be harmful. Authors like Richard Delgado, Mari Matsuda, and Charles Lawrence pushed back against this dismissal. In this chapter, I show that their arguments for the serious harmfulness of hate speech prefigure and provide support for current debates about the serious harmfulness of microaggressions. Exploring resonances with the 1980s hate speech debate will allow us to explain why microaggressions fall below the cutoff for legal liability but remain apt targets for moral blame. (shrink)

We report the results of a cross-cultural investigation of person-body reasoning in the United Kingdom and northern Brazilian Amazon (Marajó Island). The study provides evidence that directly bears upon divergent theoretical claims in cognitive psychology and anthropology, respectively, on the cognitive origins and cross-cultural incidence of mind-body dualism. In a novel reasoning task, we found that participants across the two sample populations parsed a wide range of capacities similarly in terms of the capacities’ perceived anchoring to bodily function. Patterns of (...) reasoning concerning the respective roles of physical and biological properties in sustaining various capacities did vary between sample populations, however. Further, the data challenge prior ad-hoc categorizations in the empirical literature on the developmental origins of and cognitive constraints on psycho-physical reasoning (e.g., in afterlife concepts). We suggest cross-culturally validated categories of “Body Dependent” and “Body Independent” items for future developmental and cross-cultural research in this emerging area. (shrink)

"[N]o matter how much of a coalition space this is, it ain't nothing like the coalescing you've got to do tomorrow, and Tuesday and Wednesday."This essay is a critical reflection on the centrality of coalitional politics for decolonial feminist philosophy. Decolonial feminisms emerge from multisited struggles with colonization and, as a result, are rich and heterogeneous.1 Thus, the starting point for decolonial feminists must be one that centers on coalitional politics. Women of color have long emphasized the importance of coalition (...) to collective struggle against a matrix of systems of oppression.2 However, the work of forging coalitions is just that, work. Indeed, the work of coalition building, as Bernice... (shrink)

Cognitive Science, Volume 46, Issue 4, April 2022.

The ordination of women in the Church of England has had a long hard road. Other denominations, and other parts of the Anglican Communion took the step, but it was not until the 1990s that the first women priests were ordained in the Church of England itself. Even then, Emma Percy describes the situation as an ‘ambiguous welcome’. Careful provision has been made at every stage for those who not only will not accept women as priests, but require the (...) service of bishops who have not participated in the ordination of women. The path to acceptance for women bishops has also been lengthy and subject to the same caveats and provisions. Percy argues that this reveals an underlying failure to think theologically about gender. She recognizes that there are still profound inequalities in the Church’s treatment of women in leadership. (shrink)