This article examines the emergent relationship between epistemic responsibility and frame awareness in early childhood, wherein a mother uses language socialization practices to guide her child into a new frame. The pair co-constructs the parameters of the new frame through negotiation of epistemic responsibility and remedial interchanges. The analysis demonstrates that these remedial interchanges arise from conflicting understandings of the embeddedness of frames and the epistemic dynamics that these frames entail. The child maintains epistemic primacy in her concurrent play frame, (...) which carries over to the recording activity given that the recording activity is embedded within her larger play frame. I argue that the data predict epistemic responsibility to be acquired earlier than the ability to shift epistemic dynamics outside of role-play. This study contributes to our understanding of frame and epistemic development in early childhood. (shrink)

Collaboration requires agents to coordinate their behavior on the fly, sometimes cooperating to solve a single task together and other times dividing it up into sub‐tasks to work on in parallel. Underlying the human ability to collaborate is theory‐of‐mind (ToM), the ability to infer the hidden mental states that drive others to act. Here, we develop Bayesian Delegation, a decentralized multi‐agent learning mechanism with these abilities. Bayesian Delegation enables agents to rapidly infer the hidden intentions of others by inverse planning. (...) We test Bayesian Delegation in a suite of multi‐agent Markov decision processes inspired by cooking problems. On these tasks, agents with Bayesian Delegation coordinate both their high‐level plans (e.g., what sub‐task they should work on) and their low‐level actions (e.g., avoiding getting in each other's way). When matched with partners that act using the same algorithm, Bayesian Delegation outperforms alternatives. Bayesian Delegation is also a capable ad hoc collaborator and successfully coordinates with other agent types even in the absence of prior experience. Finally, in a behavioral experiment, we show that Bayesian Delegation makes inferences similar to human observers about the intent of others. Together, these results argue for the centrality of ToM for successful decentralized multi‐agent collaboration. (shrink)

In the remainder of this article, we will disarm an important motivation for epistemic contextualism and interest-relative invariantism. We will accomplish this by presenting a stringent test of whether there is a stakes effect on ordinary knowledge ascription. Having shown that, even on a stringent way of testing, stakes fail to impact ordinary knowledge ascription, we will conclude that we should take another look at classical invariantism. Here is how we will proceed. Section 1 lays out some limitations of previous (...) research on stakes. Section 2 presents our study and concludes that there is little evidence for a substantial stakes effect. Section 3 responds to objections. The conclusion clears the way for classical invariantism. (shrink)

This article examines whether people share the Gettier intuition (viz. that someone who has a true justified belief that p may nonetheless fail to know that p) in 24 sites, located in 23 countries (counting Hong Kong as a distinct country) and across 17 languages. We also consider the possible influence of gender and personality on this intuition with a very large sample size. Finally, we examine whether the Gettier intuition varies across people as a function of their disposition to (...) engage in “reflective” thinking. (shrink)

Is behavioral integration a necessary feature of belief in folk psychology? Our data from over 5,000 people across 26 samples, spanning 22 countries suggests that it is not. Given the surprising cross-cultural robustness of our findings, we argue that the types of evidence for the ascription of a belief are, at least in some circumstances, lexicographically ordered: assertions are first taken into account, and when an agent sincerely asserts that p, nonlinguistic behavioral evidence is disregarded. In light of this, we (...) take ourselves to have discovered a universal principle governing the ascription of beliefs in folk psychology. (shrink)

Does the Ship of Theseus present a genuine puzzle about persistence due to conflicting intuitions based on “continuity of form” and “continuity of matter” pulling in opposite directions? Philosophers are divided. Some claim that it presents a genuine puzzle but disagree over whether there is a solution. Others claim that there is no puzzle at all since the case has an obvious solution. To assess these proposals, we conducted a cross-cultural study involving nearly 3,000 people across twenty-two countries, speaking eighteen (...) different languages. Our results speak against the proposal that there is no puzzle at all and against the proposal that there is a puzzle but one that has no solution. Our results suggest that there are two criteria—“continuity of form” and “continuity of matter”— that constitute our concept of persistence and these two criteria receive different weightings in settling matters concerning persistence. (shrink)

There have been recent concerns about an “epidemic of loneliness” during the pandemic, given the pervasiveness of loneliness in the population and its harmful effects on health and well-being. Therefore, it is important to establish the correlates of loneliness. The purpose of the current study was to explore how loneliness relates to a construct termed mattering, which is the feeling of being important to other people. Mattering was assessed with multiple measures in the current study (e.g., mattering in general, fears (...) of not mattering, and mattering to peers). A sample of 172 female psychology undergraduate students aged 18–25 years completed self-report measures of general mattering, mattering to peers, anti-mattering, fear of not mattering, and state and trait loneliness. As predicted, lower levels of both general mattering and mattering to peers were associated with higher state loneliness. Higher feelings of anti-mattering (feelings of being invisible and insignificant to others) and fears of not mattering were associated with greater trait loneliness, as well as a reduced sense of mattering to friends. The findings illustrate that feeling as though one does not matter to others (i.e., feeling insignificant and unimportant) is associated with increased state and trait loneliness among young women. Implications are discussed for loneliness theory and how these results can enhance both clinical understanding and practice. (shrink)

BackgroundThe COVID-19 crisis has introduced a variety of stressors, while simultaneously decreasing the availability of strategies to cope with stress. In this context, it could be useful to understand issues that people find most concerning and ways in which they cope with stress. In this study, we explored these questions with a sample of graduate and professional students.MethodUsing open-ended assessments, we asked participants to identify their biggest challenge or concern, their most effective way of handling stress, and their most common (...) way of handling stress. We applied thematic analysis and evaluated whether participants’ strategies corresponded with evidence-based practices.ResultsParticipants frequently reported top problems relating to productivity, physical health, and emotional health. Distraction was the most frequently classified common strategy, whereas behavioral activation was the most frequently identified effective strategy. Participants who reported a common strategy classified as an EBP reported lower depressive and anxiety symptoms. In contrast, there was no evidence of an association between symptom levels and whether or not participants’ effective strategy was an EBP. Participants who reported the same strategy as both their common and effective strategy reported lower depressive symptoms than those whose common and effective strategies were different.ConclusionOur findings highlight stressors that students are experiencing and ways they are coping during the COVID-19 crisis. We discuss how these findings can inform mental health promotion efforts and future research on coping with stressors. (shrink)

Philosophers have long debated whether, if determinism is true, we should hold people morally responsible for their actions since in a deterministic universe, people are arguably not the ultimate source of their actions nor could they have done otherwise if initial conditions and the laws of nature are held fixed. To reveal how non-philosophers ordinarily reason about the conditions for free will, we conducted a cross-cultural and cross-linguistic survey (N = 5,268) spanning twenty countries and sixteen languages. Overall, participants tended (...) to ascribe moral responsibility whether the perpetrator lacked sourcehood or alternate possibilities. However, for American, European, and Middle Eastern participants, being the ultimate source of one’s actions promoted perceptions of free will and control as well as ascriptions of blame and punishment. By contrast, being the source of one’s actions was not particularly salient to Asian participants. Finally, across cultures, participants exhibiting greater cognitive reflection were more likely to view free will as incompatible with causal determinism. We discuss these findings in light of documented cultural differences in the tendency toward dispositional versus situational attributions. (shrink)

Since at least Hume and Kant, philosophers working on the nature of aesthetic judgment have generally agreed that common sense does not treat aesthetic judgments in the same way as typical expressions of subjective preferences—rather, it endows them with intersubjective validity, the property of being right or wrong regardless of disagreement. Moreover, this apparent intersubjective validity has been taken to constitute one of the main explananda for philosophical accounts of aesthetic judgment. But is it really the case that most people (...) spontaneously treat aesthetic judgments as having intersubjective validity? In this paper, we report the results of a cross‐cultural study with over 2,000 respondents spanning 19 countries. Despite significant geographical variations, these results suggest that most people do not treat their own aesthetic judgments as having intersubjective validity. We conclude by discussing the implications of our findings for theories of aesthetic judgment and the purpose of aesthetics in general. (shrink)

Experimental filmmaker Rose Lowder is an intricate explorer of perception. Many of her exquisite silent short films feature flowers that are scrutinized frame by frame in shots that appear to have layers, as well as volume, and to quiver between simultaneity and succession. Yet these perceptual palimpsests that present almost too much for the eye to take in also reveal an as yet unexplored relation to imagination. Informed by ecological principles and foregrounding floral beauty, Lowder's Bouquets create a striking (...) bond between perceptual and imaginative space. This article draws upon twentieth-century phenomenological accounts of perception before delving into earlier historical discussions of beauty in nature and in art, and bringing out connections to moral philosophy and feminist ecophilosophy, in order to understand how the beautiful entwines with ecological concern in the perceptual-imaginative space of her films. (shrink)

This article discusses the definitions of faith of three twentieth-century Jewish-Christian mystic philosophers: Simone Weil, Hannah Arendt, and Gillian Rose. Weil’s “attente de Dieu” (waiting for God), Arendt’s “natality,” and Rose’s immanence each reflect an attention to the world in understanding the workings of faith. In this context, faith and hope are not cheap optimisms or escapisms into the transcendent, but a patient reckoning with the pains of the world and human relationships.

Prior research on sustainable supply chain management (SSCM) has almost exclusively focused on environmental aspects (GSCM—green supply chain management) and the study of its external drivers and consequences. Framing our study within the “strategy‐conduct‐performance” paradigm, we consider the focal firm's role in the implementation of sustainable supply chain initiatives, social as well as environmental. We use data on the S&P 500 Index retrieved from Bloomberg, including variables for two relevant focal firm strategies: (a) reducing the environmental footprint of the supply (...) chain and (b) reducing social risks in the supply chain (SRSS). Hierarchical logit modeling is carried out to examine the sequential impact of governance board characteristics and the focal firm's adoption of related internal policies and practices on the likelihood of implementing these initiatives along the supply chain. Controlling for industry, firm size, and resources, we find that board structure and diversity influence the implementation of sustainable supply chain initiatives by increasing organizational commitment to environmentally friendly and socially responsible policies and practices. Consequently, empirical evidence exists for the importance of strategic factors, namely a proactive corporate stance on sustainability associated with governance board characteristics, as antecedents of sustainable (environmental and social) supply chain initiatives. (shrink)

Aristotle connects modality and time in ways strange and perplexing to modern readers. In this book the author proposes a new solution to this exegetical problem. Although primarily expository, this work explores topics of central concern for current investigations into causality, time, and change.

An investigation into Aristotle's metaphysics of nature as expounded in the Physics. It focuses in particular his conception of change, a concept which is shown to possess a unique metaphysical structure, with implications that should engage the attention of contemporary analysis. First published in hardback in 1982, the book is now available for the first time in paperback. 'A powerful and appealing explanatory scheme which succeeds on the whole in drawing together a great many seemingly disparate elements in the Physics (...) into a neat unitary stucture.' Canadian Philosophical Review. (shrink)

Background Current requirements for ethical research in Canada, specifically the standard of active or signed parental consent, can leave Indigenous children and youth with inequitable access to research opportunities or health screening. Our objective was to examine the literature to identify culturally safe research consent processes that respect the rights of Indigenous children, the rights and responsibilities of parents or caregivers, and community protocols. Methods We followed PRISMA guidelines and Arksey and O’Malley’s approach for charting and synthesizing evidence. We searched (...) MEDLINE, PsycINFO, ERIC, CINAHL, Google Scholar, Web of Science, Informit Indigenous Collection, Bibliography of Native North Americans, and Sociological Abstracts. We included peer-reviewed primary and theoretical research articles written in English from January 1, 2000, to March 31, 2022, examining Indigenous approaches for obtaining informed consent from parents, families, children, or youth. Eligible records were uploaded to Covidence for title and abstract screening. We appraised the findings using a Two-Eyed Seeing approach. These findings were inductively coded using NVivo 12 and analyzed thematically. Results We identified 2,984 records and 11 eligible studies were included after screening. Three key recommendations emerged: addressing tensions in the ethics of consent, embracing wise practices, and using relational approaches to consent. Tensions in consent concerned Research Ethics Board consent requirements that fall short of protecting Indigenous children and communities when culturally incongruent. Wise practices included allowing parents and children to consent together, land-based consenting, and involving communities in decision-making. Using relational approaches to consent embodied community engagement and relationship building while acknowledging consent for Indigenous children cannot be obtained in isolation from family and community. Conclusions Very few studies discussed obtaining child consent in Indigenous communities. While Indigenous communities are not a monolith, the literature identified a need for community-driven, decolonized consent processes prioritizing Indigenous values and protocols. Further research is needed to examine nuances of Indigenized consent processes and determine how to operationalize them, enabling culturally appropriate, equitable access to research and services for all Indigenous children. (shrink)

While the great medieval philosopher, theologian, and physician Maimonides is acknowledged as a leading Jewish thinker, his intellectual contacts with his surrounding world are often described as related primarily to Islamic philosophy. Maimonides in His World challenges this view by revealing him to have wholeheartedly lived, breathed, and espoused the rich Mediterranean culture of his time.Sarah Stroumsa argues that Maimonides is most accurately viewed as a Mediterranean thinker who consistently interpreted his own Jewish tradition in contemporary multicultural terms. Maimonides (...) spent his entire life in the Mediterranean region, and the religious and philosophical traditions that fed his thought were those of the wider world in which he lived. Stroumsa demonstrates that he was deeply influenced not only by Islamic philosophy but by Islamic culture as a whole, evidence of which she finds in his philosophy as well as his correspondence and legal and scientific writings. She begins with a concise biography of Maimonides, then carefully examines key aspects of his thought, including his approach to religion and the complex world of theology and religious ideas he encountered among Jews, Christians, Muslims, and even heretics; his views about science; the immense and unacknowledged impact of the Almohads on his thought; and his vision of human perfection.This insightful cultural biography restores Maimonides to his rightful place among medieval philosophers and affirms his central relevance to the study of medieval Islam. (shrink)

As the usual regulatory framework did not fit well during the last Ebola outbreak, innovative thinking still needed. In the absence of an outbreak, randomised controlled trials of clinical efficacy in humans cannot be done, while during an outbreak such trials will continue to face significant practical, philosophical, and ethical challenges. This article argues that researchers should also test the safety and effectiveness of novel vaccines in wild apes by employing a pluralistic approach to evidence. There are three reasons to (...) test vaccines in wild populations of apes: i) protect apes; ii) reduce Ebola transmission from wild animals to humans; and iii) accelerate vaccine development and licensing for humans. Data obtained from studies of vaccines among wild apes and chimpanzees may even be considered sufficient for licensing new vaccines for humans. This strategy will serve to benefit both wild apes and humans. (shrink)

_Riassunto_: La _Deep Brain Stimulation _(DBS) è un dispositivo annoverato tra le interfacce-cervello computer e che si qualifica come una promettente soluzione medica per far fronte al decorso di alcune malattie neurodegenerative come il Parikinson. Decenni di utilizzo clinico della DBS hanno permesso di comprenderne gli effetti collaterali e il loro impatto sul PIAAAS (_Personality, Identity, Agency, Authenticity, Autonomy and Self_). In tal senso, per sondare cambiamenti psicologici legati all’uso della DBS si è fatto ricorso a metodi quantitativi, come questionari (...) incentrati su valutazioni di ordine numerico, e metodi qualitativi, che si appoggiano alle esperienze riportate dai pazienti tramite interviste. Questo articolo ha l’obiettivo di evidenziare come, a prescindere dai metodi di indagine utilizzati, la ricerca sia stata sempre focalizzata sugli effetti collaterali della DBS e gli eventuali cambiamenti sulle dimensioni comprese nel PIAAAS, lasciandosi sfuggire l’occasione di usare i numerosi dati raccolti per effettuare un’analisi fenomenologica che potesse restituirci una descrizione della sintesi uomo-macchina. Per colmare questo iato, proponiamo l’utilizzo sinergico di due metodi di raccolta e analisi dati di origine fenomenologica. _Parole chiave_: Deep Brain Stimulation; Effetti collaterali; Sintesi uomo-macchina; Fenomenologia _Deep Brain Stimulation and the human-machine synthesis: A possible phenomenological perspective_ _Abstract_: Deep Brain Stimulation (DBS) is a device included among the brain-computer interfaces and that qualifies as a promising medical solution to cope with the course of some neurodegenerative diseases such as Parikinson’s. Decades of clinical use of DBS have allowed us to understand its side effects and their impact on PIAAAS (_Personality, Identity, Agency, Authenticity, Autonomy and Self_). In this sense, to investigate psychological changes related to the use of DBS, quantitative methods, such as questionnaires focused on numerical assessments, and qualitative techniques, which are based on experiences by patients through interviews, have been used. This article aims to highlight how, regardless of the survey methods used, research has always been focused on the side effects of DBS and possible changes in the concepts included in the PIAAAS, missing the opportunity to use the numerous data collected to carry out a phenomenological analysis that could give us a description of the human-machine synthesis. To bridge this hiatus, we propose the synergistic use of two phenomenological methods of data collection and analysis. _Keywords_: Deep Brain Stimulation; Side Effects; Human-machine synthesis; Phenomenology. (shrink)

According to Peter van Inwagen, there are no successful philosophical arguments for substantive conclusions. He argues for this thesis in two steps. First, he puts forward and defends a “criterion of philosophical success,” according to which a philosophical argument is a success just in case it has the power to convert any ideally rational agnostic to its conclusion. He then argues that, given the kind of disagreement we find among philosophers, we have good reason to think that no philosophical arguments (...) for substantive conclusions satisfy that criterion. This paper contests van Inwagen’s case at both steps: first, it offers objections to his proposed criterion of philosophical success; second, it argues that even if we are wrong and his criterion is correct, the kind of disagreement that we find among actual philosophers does not provide a good reason to think that no philosophical arguments meet the relevant standard. (shrink)

Although more and more researches have shown that edge-based information is more important than surface-based information in object recognition, it remains unclear whether edge-based features play a more crucial role than surface-based features in category learning. To address this issue, a modified prototype distortion task was adopted in the present study, in which each category was defined by a rule or similarity about either the edge-based features (i.e., contours or shapes) or the corresponding surface-based features (i.e., color and textures). The (...) results of Experiments 1 and 2 showed that when the category was defined by a rule, the performance was significantly better in the edge-based condition than in the surface-based condition in the testing phase, and increasing defined dimensions enhanced rather than reduced performance in the edge-based condition but not in the surface-based condition. The results of Experiment 3 showed that when each category was defined by similarity, there was also a larger learning effect when the category was defined by edge-based dimensions than by surface-based dimensions in the testing phase. The current study is the first to provide convergent evidence that the edge-based information matters more than surface-based information in incidental category learning. (shrink)

I can only speculate about the echo of slavery and its impact upon how theories of race are disconnected from theories of mental illness.Haunting belongs to the structure of every hegemony.Why might psychiatry need postcolonial theories? Critical discourse on psychiatry and clinical psychology—itself quite heterogeneous across the humanities and the so-called psy disciplines—has intermittently focused on the redress of power in clinical encounters, which are often constituted by an interaction between persons in very different life circumstances and with divergent positions (...) in relation to authority and privilege, or social capital and capital itself. Postcolonial theories are relevant to this topic because they... (shrink)

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be (...) preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

Jansen and Wall suggest a new way of defending hard paternalism in clinical research. They argue that non-therapeutic research exposing people to more than minimal risk should be banned on egalitarian grounds: in preventing poor decision-makers from making bad decisions, we will promote equality of welfare. We argue that their proposal is flawed for four reasons.First, the idea of poor decision-makers is much more problematic than Jansen and Wall allow. Second, pace Jansen and Wall, it may be practicable for regulators (...) to uncover the values that a potential research participant holds when agreeing to enter a research project, so their claim that we must ban such research projects for all if we are to ban them for poor decision-makers looks to be unmotivated. Third, there seem to be cases where the liberty to enter the sort of research project Jansen and Wall discuss is morally weighty, and arguably should outweigh concerns of egalitarian distribution. Fourth, banning certain types of research, which seem on the face of it to offer an unfavourable risk-benefit ratio, would have unwelcome consequences for all clinical research, which Jansen and Wall do not recognize. (shrink)

Attributor contextualism and subject-sensitive invariantism both suggest ways in which our concept of knowledge depends on a context. Both offer approaches that incorporate traditionally non-epistemic elements into our standards for knowledge. But neither can account for the fact that the social role of a subject affects the standards that the subject must meet in order to warrant a knowledge attribution. I illustrate the dependence of the standards for knowledge on the social roles of the knower with three types of examplesand (...) show why neither attributor contextualism nor subject-sensitive invariantism can explain them. I then suggest that subject-sensitive invariantism should be supplemented with insights from virtue epistemology so that it can explain the dependence of the standards of knowledge on social roles. This supplementation of subject-sensitive invariantism helps to solve a persistent problem facing that theory: the case of knowledge attributions made by those in high-stakes contexts about subjects in low-stakes contexts. (shrink)

This chapter begins by discussing what feminist ethics is and does through examination of a specific example of the spheres into which our lives are separated: the public and the private. After demonstrating how feminist ethicists critique, complicate, and expand the content and experiences of such categories, I characterize the overarching aims of feminist ethics as (1) critical and (2) creative. I then turn to major themes in feminist ethics, exploring four of them in depth: oppression, vulnerability and dependency, relationality, (...) and the nonideal. Having provided an overview of the ethical themes that matter to feminists, I also depict three different varieties of feminist ethics—liberal, care, and transnational—before concluding. (shrink)

Detroit Become Human (DBH) offers a stunningly visual gameplay experience that both tells a philosophical story and stimulates the moral reasoning process in players. The game features a futuristic world where highly intelligent androids are bought and sold as workers who take on menial labor tasks for humans. In this chapter, we explore three dimensions of moral reasoning: accounts of moral agency, ethical theories or frameworks, and accounts of moral patiency. We then explore how DBH addresses all of these philosophical (...) issues in its narrative and gameplay scenarios. Issues of moral agency are explored through some of the androids gaining consciousness and autonomy. Ethical theory is explored through various ethical dilemmas that emerge in the gameplay. Moral patiency is explored by questioning if the androids, conscious and unconscious, are worthy of moral concern and why. We then show how the gameplay structure offers a unique interactive opportunity for players to engage in the moral reasoning process. Additionally, through the questions it raises and scenarios it poses, DBH makes an implicit anti-speciesist argument regarding moral patiency. Additionally, it makes a secondary argument that suffering and struggle are necessary to develop the possibility of second-order desires and true freedom and agency. The interactive structure of the game, in which players’ choices have more weight than in many gameplay experiences, makes DBH a unique work of contemporary philosophical pop culture. (shrink)

Sarah A. Mattice develops a comparative intervention in contemporary metaphilosophy. Drawing on resources from hermeneutics, cognitive linguistics, aesthetics, and Chinese philosophy, she explores how philosophical language is deeply intertwined with the definition and practice of the discipline.

There are many ways to understand the meanings of the #MeToo movement. Analyses of its significance have proliferated in popular media; some academic analyses have also recently appeared. Commentary on the philosophical and epistemic significance of the #MeToo movement has been less plentiful. The specific moment of the #MeToo movement in which Dr. Christine Blasey Ford’s testimony garnered a widespread social media response from sexual violence survivors highlighted the power of a particular form of epistemic response, what I call ‘epistemic (...) refusal.’ In breaking our silence, those of us who are sexual violence survivors have used this strategy to refuse the dominant epistemic structures that have kept us tightly in check. Mass informal disclosure of survivor status represented in conjunction with hashtags such as #MeToo, #WhyIDidntReport, and #BelieveHer creates space for epistemic, ethical, and political community between survivors of sexual violence by denying hegemonic epistemic discourses of contemporary rape culture. Regarding Dr. Blasey Ford’s testimony and the social media response it garnered, analysis of three main elements proves particularly illuminating: the nature of mass informal disclosure of sexual violence, what the hashtag #WhyIDidntReport reveals about refusing silence, and what the hashtags #BelieveHer and #BelieveSurvivors can show us about what it takes to begin to overcome epistemic gaslighting. (shrink)

Various explanations for the success of science have become central to both sides of the philosophical debate over scientific realism. In this paper I argue that the recent attempt by Steven Shapin and Simon Schaffer, in Leviathan and the Air-Pump, to provide a sociological explanation for the success of experimental science fails to make any significant contribution to this debate because of (1) the historical prejudgments that they employ and (2) their oversimplification of present-day philosophy of science.