Free swimming cells of the ciliated protozoan Tetrahymena are attracted to certain chemicals by chemokinesis. However, a special type of chemotaxis in response to a chemical gradient is found in cells gliding very slowly in semisolid media. In contrast to classical chemotaxis by leukocytes, which is solely positive towards chemo‐attractants, the oriented chemokinesis by gliding Tetrahymena involves both positive and negative elements. The major chemo‐attractants are peptides and/or proteins, and they may be compounds which signal the presence of food in (...) the natural environment of this freshwater phagotroph. (shrink)

Sibiriske shamaner siger, at lyden af deres tromme er hesten der bærer dem til det hinsides. Min erfaring er, at nogen former for musik kan gøre dette med os. Hvordan er det muligt? "Musik som en Mystisk rejse" udforsker dette. Bogen handler om spirituel transformation og vores søgen efter lykke og harmoni. I dag er der musik alle vegne omkring os, og vi er alle blevet dybt bevæget af musik. Kun få mennesker indser hvordan en sådan dyb følelsesoplevelse kan føre (...) dem mere permanent ind i stilhed, glæde og frihed. Hvad minder denne følelse os om, hvor peger den hen og hvordan kommer vi der? En mystisk rejse er en søgen der følger et indre kald. Ordet "mystisk" hentyder til en søgen, der er fælles for alle religioner og som derfor ikke tilhører nogen bestemt religion alene. Alle mystiske traditioner så som sufierne, de nord-amerikanske indianere eller de shamanske kulturer, gik hinsides religionen ind i et åbent rum med broderskab og samhørighed med naturen og det guddommelige. (shrink)

Debatbog der spørger om vi bør dømme fortidens ugerninger, udradere historiens mindesmærker og sige undskyld på vegne af forlængst døde landsmænd? Til læsere der ønsker en større saglig forståelsesramme til de etiske argumenter. "Denne lille bog stiller spørgsmål til og diskuterer, hvorvidt vi kan dømme vores historie, og hvordan vi bør reagere på den. Særligt behandler bogen tre spørgsmål. For det første om man kan foretage etiske vurderinger af historiske personer og handlinger. For det andet om det kan være berettiget (...) at fjerne bestemte historiske monumenter fra gadebilledet. For det tredje om stater bør give undskyldninger for tidligere tiders ugerninger. Der er derfor tale om aktuelle spørgsmål, som alle tiltrækker sig særdeles stor opmærksomhed. Der er ingen tvivl om, at de tre spørgsmål, der er i fokus, er yderst kontroversielle og genstand for voldsom debat. Formålet med bogen er dog ikke polemisk. Snarere sigter bogen mod at kvalificere argumenter til en opbyggelig diskussion, hvor Jesper Ryberg guider læseren rundt i argumenternes styrker og svagheder. Bogen er skrevet af Jesper Ryberg, professor i etik og retsfilosofi ved Afdelingen for Filosofi og Videnskabsteori, Roskilde Universitet. Han har bl.a. modtaget EliteForsk-prisen, Carlsbergfondets Forskningspris og Forskningskommunikationsprisen. (shrink)

Meaning and Context-Sensitivity Truth-conditional semantics explains meaning in terms of truth-conditions. The meaning of a sentence is given by the conditions that must obtain in order for the sentence to be true. The meaning of a word is given by its contribution to the truth-conditions of the sentences in which it occurs. What a speaker … Continue reading Meaning and Context-Sensitivity →.

Perceptual experience is one of our fundamental sources of epistemic justification—roughly, justification for believing that a proposition is true. The ability of perceptual experience to justify beliefs can nevertheless be questioned. This article focuses on an important challenge that arises from countenancing that perceptual experience is cognitively penetrable. -/- The thesis of cognitive penetrability of perception states that the content of perceptual experience can be influenced by prior or concurrent psychological factors, such as beliefs, fears and desires. Advocates of this (...) thesis could for instance claim that your desire of having a tall daughter might influence your perception, so that she appears to you to be taller than she is. Although cognitive penetrability of perception is a controversial empirical hypothesis, it does not appear implausible. The possibility of its veracity has been adduced to challenge positions that maintain that perceptual experience has inherent justifying power. -/- This article presents some of the most influential positions in contemporary literature about whether cognitive penetration would undermine perceptual justification and why it would or would not do so. -/- Some sections of this article focus on phenomenal conservatism, a popular conception of epistemic justification that more than any other has been targeted with objections that adduce the cognitive penetrability of experience. (shrink)

This grounded study investigated the negotiation of authorship by faculty members, graduate student mentors, and their undergraduate protégés in undergraduate research experiences at a private research university in the northeastern United States. Semi-structured interviews using complementary scripts were conducted separately with 42 participants over a 3 year period to probe their knowledge and understanding of responsible authorship and publication practices and learn how faculty and students entered into authorship decision-making intended to lead to the publication of peer-reviewed technical papers. Herein (...) the theoretical model for the negotiation of authorship developed through the analysis of these interviews is reported. The model identifies critical causal and intervening conditions responsible for the coping strategies faculty and students employ, which, in our study, appear to often produce unfortunate consequences for all involved. The undergraduate student researchers and their graduate student mentors interviewed in this study exhibited a limited understanding of authorship and the requirements for authorship in their research groups. The power differential between faculty and students, the students’ limited epistemic development, the busy-ness of the faculty, and the faculty’s failure to prioritize authorship have been identified as key factors inhibiting both undergraduate and graduate students from developing a deeper understanding of responsible authorship and publication practices. Implications for graduate education and undergraduate research are discussed, and strategies for helping all students to develop a deeper understanding of authorship are identified. (shrink)

It would be very desirable to have an account of the relation between mind and world that sustained the integrity of each. In this paper, we will argue that a theory of cognition which is broadly Thomistic can do just that. Many commentators recognize that cognitio is Aquinas’s basic epistemic concept, and that it designates knowledge in the broadest and most basic sense, as distinguished from scientia, or knowledge in the paradigmatic sense. There are several important consequences of this distinction (...) which are relevant to a proper understanding of the way in which a theory of knowledge which is in the Aristotelian-Thomistic tradition approaches the issue of the relation between the mind and the world. First and foremost, knowledge cannot be construed as a univocal concept in the A/t context. There are different senses of knowledge and we should not expect there to be a theory which supplies necessary and sufficient conditions for “S knows that p” that satisfies all the different senses of knowledge. It is perplexing that the contemporary discussion seems to miss this point, for the same sort of systematic ambiguity of the term ‘knowledge’ seems to hold in English. Second, the A/t theory of knowledge is not an epistemological theory in the modern sense, if by “epistemological” we mean one which is clearly demarcated from a metaphysical, psychological, or even semantical theory. The A/t theory is a metaphysics of knowledge. Third, a Thomistic theory of knowledge begins with a theory of cognition which provides the grounds of knowledge across the board, including even that of scientia. (shrink)

This article provides a retrospective, current and prospective overview on developments in brain research and neuroscience. Both theoretical and empirical studies are considered, with emphasis in the concept of multivariability and metastability in the brain. In this new view on the human brain, the potential multivariability of the neuronal networks appears to be far from continuous in time, but confined by the dynamics of short-term local and global metastable brain states. The article closes by suggesting some of the implications of (...) this view in future multidisciplinary brain research. (shrink)

The main theme that pervades this Festschrift, written by fellow-scholars and students of Bodde for his seventy-fifth birthday, is that of the proper ordering of the universe as it obtains in the Chinese tradition.

One point of view on consciousness is constituted by two claims.

Despite popular representations to the contrary, creative people are rarely insane. But creativity and madness may be connected in other ways; we find suggestions of schizotypy in the biographies of many artists, and schizophrenia and related conditions seem to be disproportionately represented in talented and creative families. There are attractions, therefore, in the idea that creativity depends on the controlled deployment of capacities that are uncontrolled in psychosis: an idea explored by psychoanalytically inclined writers such as Ernst Kris and Hanna (...) Segal. (shrink)

We focus attention on the “resilience” property of republican liberty —a property that, at least in some formulations, is among those features that distinguish republican liberty from its more familiar “liberal” counterpart. Our analysis suggests, and builds on, an analogy between resilience and risk aversion. After a brief description of what we take republican liberty to be, we turn to the question of how to conceptualise resilience and how the notion might most plausibly be formulated. Examining alternative possible formulations serves (...) to suggest the analogy between resilience and risk aversion. In Section III, we exploit that analogy to develop some implications that resilience carries for republican institutional design. Section IV offers a brief summary. (shrink)

Intuitively, in Train Case 1, you have good enough evidence to know that the train stops in Foxboro. You are epistemically justified in believing that proposition.

Not only did he found his own school of philosophy, known as eclecticism, but he reintroduced into French intellectual life the study and appreciation of the history of philosophy, and produced studies and translations--of Plato and Proclus, Descartes and Pascal--that stand to this day as paradigms of exegetical thoroughness. And it was he who first pointed out to his countrymen that there was some serious philosophical work being carried out on the other side of the Rhine.

Scientometrics has found many applications in describing, explaining and predicting the scientific status of researchers, educational and research groups, universities, organizations and countries in various national and international arenas. By studying the scientific products of different countries, their status in the production of science can be evaluated. Present study was conducted using a scientometrics approach and using co-word analysis and social network analysis (SNA) to investigate relationships in the field of know­ledge organization. In this regard, research indexed in web of (...) science on the topic of “know­ledge organization” has been analyzed using software including VOSviewer, Gephi, Publish or Perish. The findings of the study show that the most frequently used topics and words are know­ledge organization and classification. Also, the most valuable subject areas were identified based on the maps drawn using the closeness and centrality of indexes, taxonomy, ontology and know­ledge organization systems. Co-authorship analysis revealed that the co-authorship network is discrete and has low-density, with a total of 12,491 citations in all articles. Also, the most prolific author is Hjorland, followed by Smiraglia and Dahlberg. using the co-word map of know­ledge organization, policymakers can plan appropriately through the know­ledge of the research and thematic status of know­ledge organization. (shrink)

This book aims to show that recent developments in neuroscience permit a defense of free will. Through language, human beings can escape strict biological determinism.

THE CENTRALITY OF "SYMPATHY" to Adam Smith's Theory of Moral Sentiments points to the centrality of love in the book. While Smith delineates a somewhat unusual, technical sense of "sympathy", his actual use of the term frequently slips into its more ordinary sense of "compassion" or affectionate fellow feeling. This no doubt intentional equivocation on Smith's part helps suffuse the book with these themes, to the point that, without much exaggeration, one could say that the Theory of Moral Sentiments is (...) generally about love: our need for love and sympathy, love as friendship, self-love, the love of praise and praiseworthiness, the love of beauty. Even in the Wealth of Nations, our loves are thought to be very important in explaining our behavior. Smith is unusual among modern moral philosophers in according so central a place to love in this broad sense, although of course Christianity made love a central theme in reflection on ethical life, and philosophers such as Hutcheson made benevolence a key virtue in their ethical systems. However, it is not our purpose to examine Smith's critique of Hutcheson or indeed of any of his predecessors. Rather we aim in this paper to reflect on his treatment of this topic. We shall do so in part by means of comparisons with Aristotle and Plato, first with respect to friendship and then with respect to love generally. Smith's writing is replete with classical references, raising the issue of the degree to which his thought is "ancient" or "modern." Friendship is arguably the pinnacle of social relations for the ancients, and thus it provides us with a useful device for determining the degree to which Smith's thought embodies classical moral and philosophical principles. The subtlety of Smith's interweaving of traditions will become visible as we reflect not just on the ways Smith's thought exhibits classical conceptions of friendship and love, but also on the ways he departs from them. For in at least one important respect, love is a closed book from Smith's standpoint, and thus, as it turns out, also at odds with classical friendship. (shrink)

Cultural evolution, the propagation and transfer of ideas from generation to generation, as well as from one person to another and from one culture to another, is much faster than normal, genetic evolution. This could account for the speedy proliferation of humankind on this planet, at the expense of other life forms.

Objective: The value of spontaneous EEG oscillations in distinguishing patients in vegetative and minimally conscious states was studied. Methods: We quantified dynamic repertoire of EEG oscillations in resting condition with closed eyes in patients in vegetative and minimally conscious states (VS and MCS). The exact composition of EEG oscillations was assessed by the probability-classification analysis of short-term EEG spectral patterns. Results: The probability of delta, theta and slow-alpha oscillations occurrence was smaller for patients in MCS than for VS. Additionally, only (...) patients in MCS demonstrated fast-alpha oscillation occurrence. Depending on the type and composition of EEG oscillations, the probability of their occurrence was either aetiology dependent or independent. The probability of EEG oscillations occurrence differentiated brain injuries with different aetiologies. Conclusions: Spontaneous EEG oscillations have a potential value in distinguishing patients in VS and MCS. Significance: This work may have implications for clinical care, rehabilitative programs and medical–legal decisions in patients with impaired consciousness states following coma due to acute brain injuries. (shrink)

Volumes 1 and 2 of Hume’s Treatise of Human Nature, first published in January 1739, were soon after publication the subject of five notices and four reviews. Volume 3, published at the end of October 1740, received no notices and was reviewed only in the Bibliothèque raisonnée. This anonymous review of vol. 3 is of interest not only for David Norton is Professor of Philosophy Emeritus, McGill University, and Adjunct Professor of Philosophy, University of Victoria. His address is 8-4305 Maltwood (...) Lane, Victoria, BC, Canada V8X 5G9. what it says about Hume’s views as set out in the third book of the Treatise, but also because of questions that have arisen about the authorship of this and an earlier review of vol. 1 of the Treatise published in the same journal. In Part I of this paper we begin by reviewing the grounds for attributing to Pierre Des Maizeaux the notice of vols. 1 and 2 of the Treatise published by the Bibliothèque raisonnée in its April–June, 1739 issue. We then focus principally on the question of the authorship of the review of vol. 3 of the Treatise published by the Bibliothèque raisonnée in its April–June, 1741 issue, but we also consider in passing the grounds that have been offered for attributing to Francis Hutcheson the critical components of the Bibliothèque raisonnée review of vol. 1 of the Treatise. In Part II of the paper we present a transcription of the French text, never before reprinted, of this review. Part III is a new English translation of this text. In an effort to show the differences between the sense of the Treatise presented by translated quotations of it and Hume’s original texts, Part IV offers some three-column comparisons of three relatively lengthy French “quotations” of Treatise 3 found in the review, our back-translations of these texts, and the versions of these texts found in the Treatise. It then offers in a similar format, comparisons of the present and earlier translations of passages of the review of vol. 3. (shrink)

Contemporary analytic philosophy recognizes few principled constraints on its subject matter. When other disciplines also lay claim to a particular topic, however, important questions arise concerning the relation between these other disciplines and philosophy. A case in point is mathematics: traditional philosophy of mathematics defines a set of problems and certain general answers to those problems. However, mathematics is a subject matter that can be studied in many other ways: historically, sociologically, or even aesthetically, for example. Given this, we may (...) ask what implications discoveries in these disciplines have for the philosophy of mathematics. (shrink)

Richly illustrated study drawing on art, literature and science to explore Victorian attitudes towards sight.

Consider a recent expression of such traditionalism.