This chapter examines the pioneering work of Gottfried Wilhelm Leibniz (1646-1716) on various number systems, in particular binary, which he independently invented in the mid-to-late 1670s, and hexadecimal, which he invented in 1679. The chapter begins with the oft-debated question of who may have influenced Leibniz’s invention of binary, though as none of the proposed candidates is plausible I suggest a different hypothesis, that Leibniz initially developed binary notation as a tool to assist his investigations in mathematical problems that were (...) exercising him at the time, namely those concerning the divisibility of composite numbers, primality, and perfect numbers. The chapter then explores Leibniz’s development of binary, his little-known work on binary fractions and expansions, his use of binary as a symbol for creation in his philosophical-theology, and his response to the suggestion that there was a correlation between binary numeration and the hexagrams of the ancient Chinese divinatory text, the Yijing. The chapter then focuses on Leibniz’s work on other number systems, in particular his invention and exploration of hexadecimal as well as his work on duodecimal. The chapter concludes by revealing a hitherto unknown practical application of binary that Leibniz devised in the last year of his life. (shrink)

D I Lloyd; I Experientially Remember, Therefore I Exist? A reply to R. D. Smith, Journal of Philosophy of Education, Volume 17, Issue 1, 30 May 2006, Pages 97–1.

D I Lloyd; I Experientially Remember, Therefore I Exist? A reply to R. D. Smith, Journal of Philosophy of Education, Volume 17, Issue 1, 30 May 2006, Pages 97–1.

D I Lloyd; Theory and Practice1, Journal of Philosophy of Education, Volume 10, Issue 1, 30 May 2006, Pages 98–113, https://doi.org/10.1111/j.1467-9752.1976.tb0.

D I Lloyd; Theory and Practice1, Journal of Philosophy of Education, Volume 10, Issue 1, 30 May 2006, Pages 98–113, https://doi.org/10.1111/j.1467-9752.1976.tb0.

A notable early result of David Makinson establishes that every monotone modal logic can be extended to LI, LV, or LF, and every antitone logic can be extended to LN, LV, or LF, where LI, LN, LV, and LF are logics axiomatized, respectively, by the schemas □α↔α, □α↔¬α, □α↔⊤, and □α↔⊥. We investigate logics that are both monotone and antitone (hereafter amphitone). There are exactly three: LV, LF, and the minimum amphitone logic AM axiomatized by the schema □α→□β. These logics, (...) along with LI, LN, and a wider class of “extensional” logics, bear close affinities to classical propositional logic. Characterizing those affinities reveals differences among several accounts of equivalence between logics. Some results about amphitone logics do not carry over when logics are construed as consequence or generalized (“multiple-conclusion”) consequence relations on languages that may lack some or all of the nonmodal connectives. We close by discussing these divergences and conditions under which our results do carry over. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:161 HUME ON RESPONSIBILITY For Hume, to hold a person morally responsible for an action is morally to approve of him or to blame him in virtue of the action. Moreover, as he says in the Treatise of Human Nature, "approbation or blame... is nothing but a fainter and more imperceptible love or hatred." How must an action be related to a person in order for the person to (...) be held morally responsible for the action? Since to hold a person morally responsible for an action is morally to approve of him or to blame him in virtue of the action, and since moral approval or blame is nothing but a fainter and more imperceptible love or hatred, the first stage in answering this question is to attempt to answer the following more general question: How must an action be related to a person in order for the person to be loved or hated because of the action? This question, in turn, requires one to consider some of the main features of Hume's account of the passions of love and hatred. One main feature of Hume's account of these passions is that he distinguishes between the object of love and hatred and their causes. Hume says: As the immediate object of pride and humility is self or that identical person, of whose thoughts, actions, and sensations we are intimately conscious; so the object of love and hatred is some other person, of whose thoughts, actions, and sensations we are not conscious (T 329). Though the object of love and hatred be some person other than one-self, the object is not, strictly speaking, the cause, that is, the sole and 162 sufficient cause. For if the other person were the cause, then he would cause both passions in oneself; and since love and hatred nullify one another, neither could ever exist. The causes of love and hatred are complex and diversified. The ingredients of such causes are as follows: First, there are certain general qualities or circumstances. These may be subdivided as follows: (a) mental qualities: qualities of a person such as virtue, knowledge, wit, tend to produce love; those such as vice, ignorance, dullness, tend to produce hatred; (b) bodily features: beauty, strength, swiftness are conducive to love; their opposites, to hatred; (c) external advantages and disadvantages, such as family position, possessions, clothing, etc., can contribute to the production of love or hatred. But, secondly, these qualities or circumstances, considered in abstraction, cannot cause love or hatred. They must be related to the person who is the object of love or hatred. For example, knowing of a beautiful palace cannot lead one to esteem a particular prince unless the palace is related to him by, for instance, being his property. Thirdly, in order for mental qualities, bodily features, or external advantages or disadvantages to produce love or hatred, they must not only be related to the object of these passions; they must also induce pleasure or displeasure. Without pleasure or displeasure, neither love nor hatred could arise. How, then, do actions figure in the causation of love or hatred? An action can cause pleasure or pain. But, for Hume, an action's production of pleasure or pain is a necessary but not a sufficient condition for the production of love or hatred towards the person whose action it is. In addition, 163 the action must be related to the person. But an action is of relatively short duration. Thus, Hume argues: 'Tis not enough, that the action arise from the person, and have him for its immediate cause and author. This relation alone is too feeble and inconstant to be a foundation for these passions. It reaches not the sensible and thinking part, and neither proceeds from any thing durable in him, nor leaves any thing behind it; but passes in a moment, and as if it had never been. On the other hand, an intention shews certain qualities, which, remaining after the action is perform'd, connect it with the person, and facilitate the transition of ideas from one to the other (T 349). Now, as we have seen, Hume holds that 'approbation or blame... is... (shrink)

The concept of the best of all possible worlds is widely considered to be incoherent on the grounds that, for any world that might be termed the best, there is always another that is better. I note that underlying this argument is a conviction that the goodness of a world is determined by a single kind of good, the most plausible candidates for which are not maximizable. Against this I suggest that several goods may have to combine to determine the (...) goodness of a world, and because of logical conflicts between them, the goods can be optimized to give a genuine best of all possible worlds. (shrink)

According to Lloyd Geering, the world we inhabit is largely a product of our own making. We supply its meaning. Thus "God," a central symbol of meaning, is entirely a human creation. In Tomorrow's God, Geering traces the collective "drift toward meaning" that gave rise to the various religions and explores the reasons they are now in decline. He argues that, for our own survival, we must consciously create new meaning for our lives and shows how the Christian tradition (...) may lead toward a new world of meaning. (shrink)

In Tomorrow's God Lloyd Geering offers the distillation of a lifetime's reading and reflection on religious questions. He argues that the world we live in is largely a product of our own making, and that we supply its meaning. Thus 'God', a central symbol of meaning, is entirely a human creation. He traces the collective 'drift towards meaning' that gave rise to the various religions, and explores the reasons they are now in decline. Geering argues that, for our own (...) survival, we must consciously create new meaning for our lives. We must focus - and urgently - on caring for the earth. But new systems of meaning can only evolve out of our cultural past, and Geering shows how the Christian tradition may lead towards a new world of meaning. (shrink)

The history of the Institute of Medical Ethics has been well recorded. Accounts of its origins in the London Medical Group were published in an academic paper of 2003,1 in the transcript of a Wellcome Witnesses to Twentieth Century Medicine Seminar in 20072 and in a chapter of the 2009 Cambridge World History of Medical Ethics.3 In 2013, 50 years since the inauguration of its first series of lectures and symposia, the LMG as an organisation no longer exists, but its (...) aspirations and achievements are alive and well, both in the Journal of Medical Ethics and in the IME, now exploring a new phase as a membership organisation. Other papers in this issue will discuss the history and prospects of the Journal and Institute. But the LMG, similar medical groups in all other British medical schools and the Society for the Study of Medical Ethics from which the IME derived also have a significant continuing life in the thinking and practice of many medical and healthcare professionals who participated in their activities, and then in turn on those influenced by their thinking and practice. The LMG, it could be said, is ‘no more’ an organisation ‘Now but a whole climate of opinion’.4A bottom-up evolutionThe first medical students to be involved in the LMG may not have foreseen its influence on their future careers, but many were aware of being part of something new and exciting. One of those with whom the first lecture series was planned was Margaret Lloyd . "The beginning of the LMG in 1963 was an exciting time for medical students in London. As a mature student entering St Mary's Hospital Medical School … ". (shrink)

In contrast with the different views of some recent scholars, Ch. 7 constitutes an important attempt to point out the importance played by non‐discursive thought in Plotinus and Proclus in several ways. Firstly, the differences between the doctrines of Plotinus and Proclus are investigated. Secondly, it is considered the role of the ‘Loving Intellect’ in both Plotinus’ and Proclus’ philosophy. Thirdly, it is indicated how the One plays a crucial role in the mystical experience and how this kind of experience (...) may be an evidence of the activity of the One. Finally, it is shown how some problems and difficulties of Plotinus’ philosophy may be explained through reference to the mystical experience. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Ontological and Other AssumptionsLloyd A. Wells (bio) and Sandra J. Rackley (bio)Fahrenberg and Cheetham have conducted an immensely thought-provoking study of the assumptions about human nature made by 800 students and pose a question about the future impact of these assumptions on individuals’ practice in professions including medicine and psychotherapy.This work represents a branch of “philosophical anthropology,” which considers assumptions people make about human nature. The authors used a (...) questionnaire, much of which was newly designed, to assess the assumptions made by university students studying psychology, philosophy, sciences, and other disciplines. Most of the respondents were studying at Freiburg, but some were sampled at several other universities in both the former East and West Germanies. Questions involved consciousness and the brain, evolution, free will, belief in God, the meaning of life, and theodicy.Given the importance of these beliefs and assumptions in so many peoples’ lives, it is quite surprising that there are so few modern data available, and this study ventures an important first step in assessing these assumptions. However, there are many problems inherent in this study (and any like it).The first, for us, is the validity of the questionnaire itself, an issue that was not specifically addressed in the paper. Face validity is a problem even in the few questions quoted directly in the paper. For example, some statements contain two clauses, and one could well agree with one without agreeing with another: “I do not know whether a God exists and I do not believe it is possible to know.” This is the most relevant answer for a true agnostic, but the assumption that “I do not know whether a God exists” does not necessarily link at all with “I do not believe it is possible to know.” Similarly, a theist might have trouble with the two clauses, “I know God really exists” and “I do not doubt this.” (Technically, knowledge does imply a lack of doubt, but belief certainly does not.) Particularly in the trilemmas, where various patterns of response were analyzed, these multiple-clause statements may have led students to respond in a manner inconsistent with their true beliefs and assumptions. Furthermore, many of the questions contain terms that may have been unfamiliar to first-year university students. The authors explain their rationale in not defining terms, but the lack of clarity about definitions may have led some of the students to not fully understand the questions asked and to perhaps influence the answers they chose.Misunderstanding of the questions may account for some of the disparities reported in the results. Other apparent inconsistencies, however, do not seem to be a result of unclear questions. For example, sixty percent of the students agreed with the statement that “I believe in … existence after death,” whereas forty-seven percent agreed with the statement that “when my brain is dead my consciousness and my person cease to be.” These [End Page 203] findings do not add up, and this study has several similar sets of data. People contradict themselves in long and complex questionnaires, and this may be a simple explanation for these findings, but is this the only explanation? How seriously did the students take the questionnaire, often given as part of their class? How honest were their responses?How generalizable are the findings of this study? It is very difficult even to speculate about this. The statistics are incomprehensible in light of the data given, and one must essentially take them on faith, wherever one falls on the God/theodicy questions. The design has many flaws, but we do learn how a subsample of German university students rate important factors about the meaning of life. Statements are made in the paper that the students’ results correlate with similar results for the general population, but this assertion seems to be based on a very few questions. One would like much more delineation of this apparent correlation, because we wonder about the juxtaposition of developmental factors with the answers the students gave to this questionnaire. First-year university students are at a critical developmental point, and it would be fascinating to follow this large cohort of students over time to see whether... (shrink)

The question posed in the title of this paper is an historical one. I am not, for example, primarily interested in the term 'Platonism' as used by modern philosophers to stand for a particular theory under discussion – a theory, which it is typically acknowledged, no one may have actually held.1 I am rather concerned to understand and articulate on an historical basis the core position of that 'school' of thought prominent in antiquity from the time of the 'founder' up (...) until at least the middle of the 6th century C.E.2 Platonism was unquestionably the dominant philosophical position in the ancient world over a period of more than 800 years. Epicureanism is perhaps the sole major exception to the rule that in the ancient world all philosophers took Platonism as the starting-point for speculation, including those who thought their first task was to refute Platonism. Basically, Platonism sent the ancient philosophical agenda. Given this fact, understanding with some precision the nature of Platonism is obviously a desirable thing for the historian of ancient philosophy. (shrink)

One of the most pressing philosophical problems in early modern Europe concerned how the soul and body could form a unity, or, as many understood it, how these two substances could work together. It was widely believed that there were three (and only three) hypotheses regarding the union of soul and body: (1) physical influence, (2) occasionalism, and (3) pre-established harmony. However, in 1763, a fourth hypothesis was put forward by the French thinker André-Pierre Le Guay de Prémontval (1716–1764). Prémontval’s (...) hypothesis, given the grand name of “psychocracy” (i.e., the dominion or the rule of the soul), held that there was a real influence between soul and body, but that this was an immaterial kind of influence as opposed to the physical kind that had been entertained heretofore. Prémontval’s hypothesis is the focus of this paper. I shall begin by sketching out the details of Prémontval’s hypothesis (Section 1), then proceed to consider its claims to constitute a true fourth hypothesis distinct from the other three (Section 2), before closing by briefly considering two objections and the responses either that Prémontval himself made or that may be made on his behalf (Section 3). (shrink)

The impression we are often given by historians of philosophy is that the readiness of medieval philosophers to appeal to authorities, such as The Bible, the Church, and Aristotle, was not shared by many early modern philosophers, for whom there was a marked preference to look for illumination via experience, the exercise of reason, or a combination of the two. Although this may be accurate, broadly speaking, it is notable that, in spite of the waning enthusiasm for deferring to traditional (...) authorities, appeals to scripture remained commonplace in the work of early modern philosophers. In order to understand the philosophers of the early modern period, the philosophies they developed, and the debates they fought, we need to understand how they used scripture. This paper is intended to contribute to this desideratum by examining how scripture was used by those who engaged in a particular debate within natural philosophy, the so-called beast-machine controversy of the 17th and 18th centuries. (shrink)

A discussion of how and whether judgment regarding the happiness, flourishing or well-being of a life is appropriately influenced by false belief or ignorance on matters central to that life. That is, is it so that what we don't know does not, or cannot hurt us? How much does it matter if the false belief was owing to betrayal or deception by others who mattered deeply to the now dead person? Further, is truthfulness about such betrayal something a friend of (...) a dying person may eschew or is it itself a kind of betrayal? (shrink)

A 1971 paper by Roman Suszko, ‘Identity Connective and Modality’, claimed that a certain identity-free schema expressed the condition that there are at most two objects in the domain. Section 1 here gives that schema and enough of the background to this claim to explain Suszko’s own interest in it and related conditions—via non-Fregean logic, in which the objects in question are situations and the aim is to refrain from imposing this condition. Section 3 shows that the claim is false, (...) and suggests a diagnosis as to why it might have been made, in terms of quantifier scope distinctions as they bear on schematic formulations. In between, Section 2 discusses an issue brought up by this discussion but not involving the mistaken claim itself, and shows that Suszko was familiar with two different ways to set an upper or lower finite bound to the domain—a contrast which some contemporary readers may associate with David Lewis. (shrink)

The target article discusses the classic blind spot, scotomas, subjective contours, and other so-called filling-in phenomena. Its purpose is to evaluate the idea that some theories of filling-in amount to tacit acceptance of Cartesian materialism and a form of psychophysical isomorphism. Pessoa et al. reject what is termed structural isomorphism as well as Cartesian materialism, but claim that neural processes adduced as underlying filling-in may be acceptable without implying isomorphism. The article supports the idea of perceiving as an active constructive (...) process. However, the various subthemes are not clearly related to each other. Topological psychophysical isomorphism is indeed untenable, but the tacit assumption that filling-in enjoys any kind of unique status with respect to illuminating philosophical questions is doubtful. (shrink)

Context: Neurophenomenology lies at a rich intersection of neuroscience and lived human experience, as described by phenomenology. As a new discipline, it is open to many new questions, methods, and proposals. Problem: The best available scientific ontology for neurophenomenology is based in dynamical systems. However, dynamical systems afford myriad strategies for organizing and representing neurodynamics, just as phenomenology presents an array of aspects of experience to be captured. Here, the focus is on the pervasive experience of subjective time. There is (...) a need for concepts that describe synchronic (parallel) features of experience as well as diachronic (dynamic) structures of temporal objects. Method: The paper includes an illustrative discussion of the role of temporality in the construction of the awareness of objects, in the tradition of Husserl, James, and most of 20th century phenomenology. Temporality illuminates desiderata for the dynamical concepts needed for experiment and explanation in neurophenomenology. Results: The structure of music – rather than language – is proposed as a source for descriptive and explanatory concepts in a neurophenomenology that encompasses the pervasive experience of duration, stability, passing time, and change. Implications: The toolbox of cognitive musicology suddenly becomes available for dynamical systems approaches to the neurophenomenology of subjective time. The paper includes an illustrative empirical study of consonance and dissonance in application to an fMRI study of schizophrenia. Dissonance, in a sense strongly analogous to its acoustic musical meaning, characterizes schizophrenia at all times, while emerging in healthy brains only during distracting and demanding tasks. Constructivist content: Our experience of the present is a continuous and elaborate construction of the retention of the immediate past and anticipation of the immediate future. Musical concepts are almost entirely temporal and constructivist in this temporal sense – almost every element of music is constructed from relations to non-present musical/temporal contexts. Musicology may offer many new constructivist concepts and a way of thinking about the dynamical system that is the human brain. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Aristotle and Neoplatonism in Late Antiquity: Interpretations of the “De Anima.” by H.J. BlumenthalLloyd P. GersonH.J. Blumenthal. Aristotle and Neoplatonism in Late Antiquity: Interpretations of the “De Anima.” Ithaca: Cornell University Press, 1996. Pp. x + 244. Cloth, $57.50.The label ‘Neoplatonism’, coined in the eighteenth century to indicate a putative and rather ill-defined development within the Platonic tradition, is to this day applied in sundry ways. Presumably, ‘Neoplatonic’ (...) is supposed to be distinguished from ‘Platonic’, but the problem with this is that most of those ancient philosophers called ‘Neoplatonic’ thought of themselves simply as Platonists, that is, as authentic interpreters and continuators of Plato. Nevertheless, there are several important and relatively clear differentiations to be made among those within this tradition. One such refers to those Platonists who attempted to appropriate Aristotle’s philosophy. This was done principally in two ways. For Plotinus, Aristotelian concepts and distinctions were employed to defend Plato against Peripatetic attacks. For Porphyry and the later Platonic commentators on the works of the Aristotelian corpus, Aristotle was co-opted as an authority on the philosophy of the sensible world, leaving the higher, intelligible world to Plato. The commentaries on Aristotle’s De Anima are particularly revealing in this regard. For one would assume that in matters regarding the soul it would be extremely difficult to see Aristotle and Plato as anything other than irreconcilable. Aristotle’s hylomorphism and explicit denial of the immortality of the soul hardly seem to be compatible with that which can be called, even on the most charitable interpretation, genuinely Platonic. In fact, the reconciliation of Aristotelian and Platonic soul doctrines is one of the central tasks late Platonists set for themselves. As Blumenthal notes: “Whatever the historical truth about the relation of Aristotle’s thought to Plato’s may have been, the Neoplatonist regarded it as propaedeutic to Plato’s as well as aiming at the same goal” (25).H. J. Blumenthal’s long-anticipated monograph explores in minute detail the extant commentaries on Aristotle’s De Anima written by late Platonic or, if one insists, Neoplatonic philosophers. This book builds upon a large body of frequently groundbreaking work by the author on various facets of late Greek philosophy. The main commentaries studied are those of John Philoponus and the unknown authors dubbed ‘Pseudo-Philoponus’ and Pseudo-Simplicius’, though there is also considerable attention paid to Themistius, the last Peripatetic commentator on De Anima and, of course, [End Page 315] Alexander of Aphrodisias, whose commentary on De Anima has not survived but whose own immensely influential Peripatetic treatise on the soul does.This book is divided into two parts: I. Commentaries and Commentators and II. Interpretations of the De Anima. The first part provides the essential background to the second. Anyone approaching the Aristotelian commentators for the first time will find here a most useful guide. Even those who have some familiarity with this material will benefit from the author’s extensive knowledge of detail and judicious examination of some of the difficult issues of dating, authorship, philosophical lineage, and so on.The second section of the book concentrates on the De Anima commentaries. Here the author, following the order of the text of De Anima, systematically surveys the positions of the commentators on some of the central issues taken up in Aristotle’s work. These include the commentators’ efforts to reconcile Aristotle’s definition of the soul with Platonic assumptions about its nature and Plato’s tripartite division of the soul with Aristotle’s not entirely clear divisions. One of the instructive features of this comparative study of the commentaries is to see frequently how the issues that seize the imagination of modern commentators trouble the ancients not at all and vice versa.Most readers will be mainly interested in the chapters on the commentaries on the latter part of Book Two and Book Three of De Anima. From Plotinus onward, some of the most original philosophizing in the Platonic tradition focuses on self-consciousness, memory, imagination, and the integrative operation of the rational and arational powers. The last two chapters are filled with material about these issues as well as the... (shrink)

We investigate, for several modal logics but concentrating on KT, KD45, S4 and S5, the set of formulas B for which ${\square B}$ is provably equivalent to ${\square A}$ for a selected formula A (such as p, a sentence letter). In the exceptional case in which a modal logic is closed under the (‘cancellation’) rule taking us from ${\square C \leftrightarrow \square D}$ to ${C \leftrightarrow D}$ , there is only one formula B, to within equivalence, in this inverse image, (...) as we shall call it, of ${\square A}$ (relative to the logic concerned); for logics for which the intended reading of “ ${\square}$ ” is epistemic or doxastic, failure to be closed under this rule indicates that from the proposition expressed by a knowledge- or belief-attribution, the propositional object of the attitude in question cannot be recovered: arguably, a somewhat disconcerting situation. More generally, the inverse image of ${\square A}$ may comprise a range of non-equivalent formulas, all those provably implied by one fixed formula and provably implying another—though we shall see that for several choices of logic and of the formula A, there is not even such an ‘interval characterization’ of the inverse image (of ${\square A}$ ) to be found. (shrink)

One of the major puzzling themes in the history of Platonism is how theology is integrated with philosophy. In particular, one may well wonder how Plato's superordinate first principle of all, Idea of the Good, comes to be understood by his disciples as a mind or in some way possessing personal attributes. In what sense is the Good supposed to be God? In this paper I explore some Platonic accounts of the first principle of all in order to understand where (...) the integration of the personal into the metaphysical is organic and where it is not. I conclude that the “ontological” and the “henological” construals of the first principle of all differ in their openness to “intellectualizing” that principle. (shrink)

All those who profess ancient philosophy will no doubt have received from students requests for a reliable introductory monograph on Plato. It is a request that many—myself included—find somewhat embarrassing. For it is extremely difficult to think of an introductory book on Plato in English that is at once accessible to beginners, reasonably comprehensive, exegetically accurate, and philosophically sophisticated. But if these four desiderata are not met, any recommendation may actually do more harm than good. It is not difficult to (...) show that the introductions by Andrew Mason, J. C. B. Gosling, G. M. A. Grube, and A. E. Taylor fall short according to one or more of these... (shrink)

Howe et al.'s rejection of traditional discussion of talent is clearly acceptable, but their alternative has a weakness. They stress practice and hard work while referring vaguely to some basic biological substrate. High scores on a valid test of general intelligence provide a cultural-genetic basis for talented performance in a wide variety of specialties, ranging from engineering to the humanities. These choices may be entirely environmentally determined, and the highest levels of achievement do require practice and hard work.

We address the controversy in the literature concerning the definition of holobionts and the apparent constraints on their evolution using concepts from community population genetics. The genetics of holobionts, consisting of a host and diverse microbial symbionts, has been neglected in many discussions of the topic, and, where it has been discussed, a gene-centric, species-centric view, based in genomic conflict, has been predominant. Because coevolution takes place between traits or genes in two or more species and not, strictly speaking, between (...) species, it may affect some traits but not others in either host or symbiont. Moreover, when interacting species pairs are embedded in a larger community, indirect ecological effects can alter the expected pairwise dynamics. Mode of symbiont transmission and the degree of host inbreeding both affect the extent of microbial mixing across host lineages and thereby the degree to which selection on one trait of either partner affects other aspects of a holobiont phenotype. We discuss several potential defining criteria for holobionts using community genetics and population genetics models, suggesting their application and limitations. Using community genetics models, we show how conflict between genomes can be self-limiting, while cooperation and mutualism tend to be self-accelerating. It is likely that this bias in the evolutionary dynamics of interaction between hosts and symbionts is an important feature of holobionts. This bias in the evolutionary dynamic could contribute to explaining the absence of cheaters from natural mutualisms, although cheaters are predicted by gene-centered conflict theory to cause the evolutionary instability of mutualisms. Additionally, it may help explain the more frequent origin of mutualisms from parasitic than from free-living systems, an evolutionary trajectory opposite to that predicted by genome conflict theory. (shrink)

Algorithms for approximate Bayesian inference, such as those based on sampling (i.e., Monte Carlo methods), provide a natural source of models of how people may deal with uncertainty with limited cognitive resources. Here, we consider the idea that individual differences in working memory capacity (WMC) may be usefully modeled in terms of the number of samples, or “particles,” available to perform inference. To test this idea, we focus on two recent experiments that report positive associations between WMC and two distinct (...) aspects of categorization performance: the ability to learn novel categories, and the ability to switch between different categorization strategies (“knowledge restructuring”). In favor of the idea of modeling WMC as a number of particles, we show that a single model can reproduce both experimental results by varying the number of particles—increasing the number of particles leads to both faster category learning and improved strategy‐switching. Furthermore, when we fit the model to individual participants, we found a positive association between WMC and best‐fit number of particles for strategy switching. However, no association between WMC and best‐fit number of particles was found for category learning. These results are discussed in the context of the general challenge of disentangling the contributions of different potential sources of behavioral variability. (shrink)

Two major clarifications have greatly abetted the understanding and fruitful expansion of the theory of natural selection in recent years: the acknowledgment that interactors, not replicators, constitute the causal unit of selection; and the recognition that interactors are Darwinian individuals, and that such individuals exist with potency at several levels of organization (genes, organisms, demes, and species in particular), thus engendering a rich hierarchical theory of selection in contrast with Darwin’s own emphasis on the organismic level. But a piece of (...) the argument has been missing, and individuals at levels distinct from organisms have been denied potency (although granted existence within the undeniable logic of the theory), because they do not achieve individuality with the same devices used by organisms and therefore seem weak by comparison. We show here that different features define Darwinian individuality across scales of size and time. In particular, species-individuals may develop few emergent features as direct adaptations. The interactor approach works with emergent fitnesses, not with emergent features; and species, as a consequence of their different mechanism for achieving individuality (reproductive exclusivity among subparts, that is, among organisms), express many effects from other levels. Organisms, by contrast, suppress upwardly cascading effects, because the organismic style of individuality (by functional integration of subparts) does not permit much competition or differential reproduction of parts from within. Species do not suppress the operation of lower levels; such effects therefore become available as exaptations conferring emergent fitness—a primary source of the different strength that species achieve as effective Darwinian individuals in evolution. (shrink)

Mula sa iisang lahi ang Pilipinas at Malaysia sang-ayon sa pag-aaral na may kinalaman sa paksaing Austronesyo. May mahabang kasaysayan ng ugnayan ang dalawang bansang ito, di lámang sa ekonomikong aspekto, kundi lalo’t higit sa kultural na batayan, at isa na rito ang paggamit ng mga simbolo sa pagbabatik/pagtatatu na nakaugat pa sa relihiyon ng pag-aanito sa mundong Austronesyo. Bagamat naging parehong kolonya ang dalawang bansa ng mga Kanluranin na nagpalawak di lámang ng kapangyarihan kundi maging ng merkado, hindi tuluyang (...) naalis/nakalimutan ang kalinangang nakaugat sa mga bansang ito. Sa kasalukuyan, nagpapatúloy pa rin ang iláng tradisyonal na pang-araw-araw na búhay ng ilang bahagi ng mga bansang ito gaya ng pagbabatik. Nariyan pa rin ang pagpupukpok o tapping process sa pagbabatik na sa kasalukuyan ay dinarayo pa sa kabundukan ng Cordillera ng mga tagasiyudad upang makapagpatatu kay Whang Od. Gayundin, mayroon pa ring kahalintulad na ganitong paraan ng pagbabatik sa Malaysia, sa kaso halimbawa ng mga Iban, Kayan at Dayak. Hindi kataka-taka sa kasalukuyan na kahit nariyan pa rin ang tradisyonal na paraan ng pagbabatik, naghahalinhinan ang tradisyonal at modernong pagbabatik sa mga bansang ito na ang pinakanag-uugnay ay ang mga simbolismong nakaugat sa kanilang malalim na kasaysayan. (shrink)

I propose a distinct type of robustness, which I suggest can support a confirmatory role in scientific reasoning, contrary to the usual philosophical claims. In model robustness, repeated production of the empirically successful model prediction or retrodiction against a background of independentlysupported and varying model constructions, within a group of models containing a shared causal factor, may suggest how confident we can be in the causal factor and predictions/retrodictions, especially once supported by a variety of evidence framework. I present climate (...) models of greenhouse gas global warming of the 20th Century as an example, and emphasize climate scientists’ discussions of robust models and causal aspects. The account is intended as applicable to a broad array of sciences that use complex modeling techniques. (shrink)

There are different groups in society who may be considered vulnerable, for example those experiencing mental or physical health issues, learning disabilities, prisoners or children. There are, however, other groups in society who may also be regarded as vulnerable, such as those who are bereaved. Vulnerability in relation to the bereaved occurs as a result of experiencing a normal life event, death or a loss. In this situation vulnerability may be transient and, depending upon the management of the bereavement, generally (...) temporary. Unlike the aforementioned groups, participants required for this type of research (bereavement, death and dying) are able to consent themselves into projects, and the capacity to do so is not an issue. Undertaking research with those who may be considered vulnerable into sensitive, emotive topics such as death and dying can create difficulties for the National Research Ethics Service (NRES), making it difficult to get approval for such studies. It appears that the ethical issues are concerned with not wishing to cause distress to participants when asked for research purposes to recollect what for some may have been emotionally challenging and traumatic events. The article offers a narrative, reflective account of the above from several perspectives: being employed as a contract researcher in a university; having experience of being an active member of a National Health Service Research Ethics Committee; and later assuming the role of full-time postgraduate (PhD) student requiring ethical approval to undertake research with what may be considered a vulnerable group involving a sensitive and emotive topic. Valuable insights from participants – their views on participation in an emotive research project and good practice in research having been explored via questionnaire – are highlighted and discussed. (shrink)

The diverse papers which make up this book are variations on a theme which is based in biological science - yet none of the contributors is really a biologist. Our metaphor for describing what we are doing here is that we have gathered together in a room because that particular room provides us with a certain view of our individual areas of interest - a view that may have been previously obscured. We are visiting the house of biology in the (...) hope that we may see more clearly things that we each find baffling about our particular field of work in education, research, or daily living. (shrink)

Previous studies have shown that misperceptions and illusory experiences can occur if sensory stimulation is withdrawn or becomes invariant even for short periods of time. Using a perceptual deprivation paradigm, we created a monotonous audiovisual environment and asked participants to verbally report any auditory, visual or body-related phenomena they experienced. The data (analysed using a variant of interpretative phenomenological analysis) revealed two main themes: (1) reported sensory phenomena have different spatial characteristics ranging from simple percepts to the feeling of immersion (...) in a complex multisensory environment and (2) the active contribution of the perceiver where participants report engaging in exploratory processes even when there is nothing to find. Detailed analysis of the qualitative data further showed that participants who reported more perceptual phenomena were more likely to report internal bodily sensations, move more during the experiment and score higher on the Revised Hallucination Scale than those reporting fewer percepts explicitly linking perceptual deprivation to somatic phenomena. The results demonstrate how the variety of sensory experiences induced by perceptual deprivation can give further insight into the factors mediating conscious awareness and may suggest ways in which the brain imposes meaning on the environment under invariant sensory conditions. (shrink)

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

In lieu of an abstract, here is a brief excerpt of the content:Commentary on “Sanity and Irresponsibility”Lloyd Fields (bio)AbstractI make two criticisms of Wilson’s proposal to dispense with a loaded axiological criterion of sanity. First, Edwards’s axiological criterion of sanity, which Wilson accepts, involves the requirement of impartiality, which at least excludes some standards of right and wrong. Second, value pluralism applies only to morally acceptable forms of life and thus presupposes a standard of right and wrong. I conclude (...) by noting that mental illnesses are not sufficiently characterised by extreme and persistent deviance from practical rationality, as conceived by Edwards and Wilson.KeywordsSanity, responsibility, mental illness, value pluralismWilson’s paper is set in an important tradition of which Susan Wolf is a notable exemplar. He tackles the crucially important issue of how practical rationality is related to mental health and of how certain forms of irrationality are connected with mental illness. This issue must be taken into account in order to avoid infecting the criteria of sanity with “idiosyncratic or culturally biased norms.” Like Wolf (1989, 137–151), Wilson holds that sanity is a necessary condition of responsibility. But Wilson rejects the second of Wolf’s two criteria of sanity on the grounds that it invokes a definite normative theory of right and wrong. He proposes instead that whether an agent is sane should be decided on the basis of whether s/he displays practical rationality, as defined by Edwards’s list of seven items. Following Edwards, Wilson implicitly equates “sanity” with “mental health” and “insanity” with “mental illness.” By rejecting an axiological criterion of sanity that depends on a normative theory of right and wrong, Wilson is able to ensure that individuals like JoJo are not judged to be insane and hence not morally responsible for their actions. Wilson is right to stress the importance of our not applying notions such as “mental illness” or “insanity” too widely, especially in such a way as to allow blameworthy persons to escape blame and punishment.But are Wilson’s own criteria of sanity free from dependence on a normative theory, or a normative standard, of right and wrong? First, let us note that Wilson states Edwards’s seventh condition of practical rationality as follows: “holding values that are or would be adopted under the conditions of (negative) freedom.” Edwards’s own formulation of this condition is the following: “having values which have been (or would be) adopted under conditions of freedom, enlightenment and impartiality” (1982, 315). Wilson explains “freedom” as the absence of coercion. It is uncertain what “enlightenment” means in this context. Impartiality would seem to include being impartial between oneself and others and between one’s own tribe, nation or race and that of others. Although this requirement is perhaps too general to be regarded as a sufficient standard [End Page 303] of right and wrong, it is at least part of such normative theories as utilitarianism and Kant’s moral theory, while it is inconsistent with ethical egoism, i.e., the view that an action is right or wrong depending on whether it serves or frustrates the agent’s overall best interests. One could dispute Wilson’s claim, therefore, that Edwards’s seventh item is not a “loaded” axiological criterion.Second, Wilson maintains that we can avoid assuming a loaded axiological criterion for sanity by adopting the position of value pluralism. Wolf’s axiological criterion for sanity is that the agent should be capable of knowing the difference between right and wrong. Wilson holds that this criterion, as presented, invokes a normative theory of right and wrong. The criterion would not do so if it were applied in accordance with value pluralism, which, Wilson says, “rejects the notion that there is one monolithic theory of right and wrong without denying that an actor may behave virtuously or viciously.” Wilson appears to assume that an “unloaded” version of Wolf’s axiological criterion would be more or less equivalent to Edwards’s seventh condition of practical rationality.Value pluralism maintains that there are incompatible forms of life that display distinct virtues. “Whichever form of life one is pursuing there are virtues which elude one because they are available only to people pursuing alternative and... (shrink)

Even those who have not yet read Dr. Broad’s recent book on The Mind and its Place in Nature have not improbably had their attention drawn to his carefully considered pronouncement on Behaviourism. At the close of ten pages of critical discussion he says: “ It seems to me that Reductive Materialism in general, and strict Behaviourism in particular, may be rejected. They are instances of the numerous class of theories which are so preposterously silly that only very learned men (...) could have thought of them. I may be accused of breaking a butterfly on a wheel in this discussion of Behaviourism. But it is important to remember that a theory which is in fact absurd may be accepted by the simple-minded because it is put forward in highly technical terms by learned persons who are themselves too confused to know exactly what they mean. When this happens, as it has happened with Behaviourism, the philosopher is not altogether wasting time by analysing the theory and pointing out its implications”. I quote the passage at length so that those of us who dally with Behaviourism may realize just how they stand. (shrink)

A specific form of research question, for instance, “What is the probability of a certain class of weather events, given global climate change, relative to a world without?” could be answered with the use of FAR or RR (Fraction of Attributable Risk or Risk Ratio) as the most common approaches to discover and ascribe extreme weather events. Kevin Trenberth et al. (2015) and Theodore Shepherd (2016) have expressed doubts in their latest works whether it is the most appropriate explanatory tool (...) or the way of public outreach concerning climate events and extremes. As an alternative, these researchers focus on complementary questions, for example, “How much did climate change affect the severity of a given storm?” advocating a “storyline” approach. New methods and new research questions are neither foreign, nor controversial from the standpoint of history and philosophy of science, especially those, related to public interest. Nevertheless, the new proposal has got a tepid reception from the majority of professionals of the given field. They argued that this approach can cause weakening of standards and neglecting of scientific method. The following paper attempts to find the roots of the supposed controversy. We claim inefficiency of uncompromising approach to D&A in absolute sense and assert that errors of a particular type may have a different level of concern in society, depending on the variety of contexts. Therefore, context defines the risk of over-estimation vs. under-estimation of harm. (shrink)

‘Saving the appearances’, , is a slogan that, in its time, stood or was made to stand for many different methodological positions in many different branches of ancient natural science. It is not my aim, in this paper, to attempt to tackle the subject as a whole. I shall concentrate on just one inquiry, astronomy. Nor, with astronomy, can I do justice to all the complexities of what was certainly one of the central methodological issues, if not the central issue, (...) in the history of ancient theoretical astronomy. I have a quite limited aim, to examine the foundations, and test the applicability, of a widespread and influential line of interpretation of ancient Greek astronomy according to which it was essentially, or at least predominantly, what we may call ‘instrumentalist’ in character—that is, broadly speaking, that Greek astronomical theories were devices or fictions put forward purely for the sake of calculations with no claims to correspond with physical reality. (shrink)

In this essay an ‘objective’ account of intrinsic value is proposed and partly defended. It is claimed that a kind of value exists which is, or may reasonably be supposed to be, a property of certain objects. The presence of such value is not to be wholly accounted for as the ‘projection’ of certain human feelings elicited by the object thought to be of value, nor by the object's meeting certain operative human conventions prescribing what is to be admired, nor (...) by its being conformable, in some way, to human needs or desires. Hume, of course, would have none of this. It is hoped to show that if one adopts Hume's account, then his attempt to show that there nevertheless will be convergence in the long run as to what is of aesthetic value is forced and unsuccessful. By contrast, on the ‘objective’ account convergence is to be expected. This, of course, only shows the superiority of the ‘objective’ account so long as there is an expectation of long-term convergence. This is not an expectation of most contemporary value ‘subjectivists’, and therefore the argument will not be directly relevant to their positions. (shrink)

_ Source: _Volume 30, Issue 2, pp 202 - 221 There is ongoing scholarly debate over the role that Hobbes’s laws of nature play in grounding the moral requirement that subjects obey the government under which they live. This essay demonstrates how the laws of nature, when understood as natural duties, may directly ground a moral duty to obey one’s sovereign without positing that subjects have undertaken any covenant of subjection. Such a grounding avoids the problems that attend accounts that (...) depend on tacit covenant and coerced covenant. The essay describes the advantages of a natural duty account of the laws of nature over accounts that regard those laws as contractual obligations entered through voluntary acts, or as legal obligations to treat the natural laws as literal laws legislated by a sovereign God. (shrink)

‘Saving the appearances’,, is a slogan that, in its time, stood or was made to stand for many different methodological positions in many different branches of ancient natural science. It is not my aim, in this paper, to attempt to tackle the subject as a whole. I shall concentrate on just one inquiry, astronomy. Nor, with astronomy, can I do justice to all the complexities of what was certainly one of the central methodological issues, if not the central issue, in (...) the history of ancient theoretical astronomy. I have a quite limited aim, to examine the foundations, and test the applicability, of a widespread and influential line of interpretation of ancient Greek astronomy according to which it was essentially, or at least predominantly, what we may call ‘instrumentalist’ in character—that is, broadly speaking, that Greek astronomical theories were devices or fictions put forward purely for the sake of calculations with no claims to correspond with physical reality. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Historical Narratives and the Meaning of NationalismLloyd KramerThe vast, expanding literature on nationalism may well defy every generalization except a familiar, general theme of intellectual history: texts about nationalism have always drawn their perspectives and passions from the evolving political and cultural contexts in which their authors have lived. Modern accounts of nationalism show the unmistakable traces of political, military, and cultural conflicts in every decade of the twentieth (...) century—from the era of nationalist rivalries before World War I to the redefinitions of gender, literature, and history that have emerged in contemporary postmodernism, postcolonialism, and multiculturalism.This connection between the texts of nationalist scholarship and the modern contexts of politics and culture suggests why historical narratives of nationalism have become part of the history of nationalism itself. Nationalism’s scholarly interpreters cannot easily separate themselves from the objects of their analysis, and their interpretations are often as diverse and fragmented as the nations they describe. This essay enters the debate on nationalism, describes recurring themes in the historical literature, and replicates a key characteristic of the historiography by stressing that the complexity of nationalism and its interpreters resists every simplifying, comprehensive definition. Histories of nationalism provide a striking example of how the history of ideas never reaches a point of uncontested closure and never finally escapes the political and cultural contexts in which all historical narratives are produced.Like most analysts of nationalism, I assume that it is one of the decisive forces in modern history and that its significance demands careful, critical analysis. It also calls for always incomplete definitions, one of which can be drawn from the German historian Peter Alter. Nationalism is “both an ideology and a political movement which holds the nation and sovereign nation-state to be crucial indwelling values, and which manages to mobilize the political will of [End Page 525] a people or a large section of the population.”1 Nationalist ideas are thus a distinctive form of modern thought that shapes the political actions and cultural identities of individuals as well as groups. The meanings of nationalism and national identity typically depend on various dichotomies that define the nation in terms of its differences from other places or people—the dynamic process of identity formation that has received wide attention in contemporary cultural studies. My own view of the “oppositional” structures in nationalist thinking coincides with the concise description by Peter Sahlins: “National Identity is a socially constructed and continuous process of defining ‘friend’ and ‘enemy’.... National identities... do not depend on the existence of any objective linguistic or cultural differentiation but on the subjective experience of difference.”2 Sahlins thus assumes that something called national identity is “there,” but he also insists that national consciousness is a “constructed” identity. Nationalism, in short, does not express or reflect a natural, primordial reality.The assumption that nationalisms are historical rather than natural phenomena shapes most of the scholarly literature, so that the study of nationalism leads to historical analysis rather than to biology or physical geography. Although there have been countless historical studies of nationalism in different periods, cultures, and conflicts,3 my discussion will refer to a small number of narratives that have made especially significant theoretical claims about the nature of nationalism. There is of course no way to analyze such theories without exclusions and generalizations, which I shall provide by focusing mostly on works about Europe and dividing the patterns of historical analysis into the following broad categories: (1) the description of nationalism as a central component of modernization, reflecting and also shaping intellectual, cultural, economic, social, and political transitions from premodern to modern history; (2) the claim that nationalisms are modern religious movements, related to but also displacing earlier religions; (3) the argument that nationalism is a linguistic, literary construction that depends on new forms of communication, intellectuals, and narratives; (4) the description of nationalism as a discourse of gender and ethnicity that shapes individual identities and also expresses anxieties about sexuality, culture, and respectability; and (5) the argument that nationalisms can be divided into categories (good/bad, Western/Eastern, [End Page 526] political/cultural) and phases that represent sharp differences in the development of modern... (shrink)

It is in the formal procedures and their rigorous logic, not in any contingent eventuality in Beckett’s life or acts, humanly fascinating as they may be, that we must look for the political, ethical, and even aesthetic implications of his oeuvre. Politics is above all the domain of expression and of representation, undergirded alike by the notion of an integral voice that gives utterance (outerance) to an inward essence, whether conceived as interest or identity. Neither what he experienced nor what (...) he expresses gives us a way into the political and ethical implications of Beckett’s forms. Beckett takes the famous “formality” of bourgeois freedoms at their word, evacuating both freedom and duty of any content and reducing progress and development to the single, recurring word “on.” Likewise, the bodiless voice that imprints Beckett’s plays from Krapp on is not the guarantor of the fullness of the subject in its Mundigkeit, finding authentic expression of its inner essence in its utterance, but the manifestation of the lacuna inscribed by the “suffering of being” in the state-oriented formation of an ethical-political subject through aesthetic culture. The little syllable “on” that echoes though his work from Godot to Worstward Ho, which could be mistaken for a categorical imperative, nonetheless does not interpellate its auditor as ethical Subject; rather, it insists on bringing the subject face to face with its own thingliness, a thing for the thing that is this unowned voice buzzing in the ear. (shrink)

The statistics and studies speak clearly to a need for the pro-life movement to embrace opposition to contraception as a means of reducing our culture’s resort to abortion. What are some policies that may help us to confront the contraceptive orthodoxy in ways that are politically viable in the face of near-universal acceptance of contraception?

In Plato's Meno , there is a famous discussion of desire and evil. This paper is not a contribution to Platonic scholarship, but a direct taking up of the issue whether someone can desire evil. One stock interpretation of the putative impossibility of desiring what is evil or bad is the interpretation which emphasizes an internal or conceptual tie between desire and good. This interpretation compares pairs of terms such as ‘fear—danger’, ‘belief—truth’ and ‘desire—good’. To fear something is to regard (...) it as, or believe that it is, dangerous ; to believe something is to regard it as, or believe it to be, true ; to desire something is to regard it as, to believe it to be, good. Since it is obvious that people believe things which are false, it is maintained that it is equally obvious that people may desire what is bad and fear what is harmless or of no danger. Let us call this interpretation of the doctrine that it is impossible to desire evil the weak thesis. The weak thesis allows what seems a plain fact of human reality, that people believe falsehoods, fear things that cannot harm them and desire things which are not good. Equally obviously, it allows that people fail to believe truths, fail to desire goods, and fail to fear things that are dangerous. On this weak interpretation, the manner in which wickedness to others and self-destructiveness are due to ignorance is that people are ignorant about the nature of things and ways of acting, ignorant about what it would be like to possess something or ignorant about what it would be like to do something or other. (shrink)