Sustainability science seeks to extend scientific investigation into domains characterized by a distinct problem-solving agenda, physical and social complexity, and complex moral and ethical landscapes. In this endeavor it arguably pushes scientific investigation beyond its usual comfort zones, raising fundamental issues about how best to structure such investigation. Philosophers of science have long scrutinized the structure of science and scientific practices, and the conditions under which they operate effectively. We propose a critical engagement between sustainability scientists and philosophers of science (...) with respect to how to engage in scientific activity in these complex domains. We identify specific issues philosophers of science raise concerning current sustainability science and the contributions philosophers can make to resolving them. In conclusion we reflect on the steps philosophers of science could take to advance sustainability science. (shrink)

Until recently, psychologists have conceptualised and studied trust in God (TIG) largely in isolation from contemporary work in theology, philosophy, history, and biblical studies that has examined the topic with increasing clarity. In this article, we first review the primary ways that psychologists have conceptualised and measured TIG. Then, we draw on conceptualizations of TIG outside the psychology of religion to provide a conceptual map for how TIG might be related to theorised predictors and outcomes. Finally, we provide a research (...) agenda for future empirical work in this area, as well as practical applications for counsellors and religious leaders. (shrink)

Alors que les phénoménologues prétendent avoir dépassé le solipsisme, la plupart n’ont en fait que repousser les frontières de l’intersubjectivité des individus humains aux individus des autres espèces. Pourtant, Husserl reconnaît l’existence d’une intersubjectivité interspécifique, c’est-à-dire d’une intersubjectivité dépassant les limites de l’espèce. Il va même jusqu’à affirmer qu’on comprend parfois mieux un animal familier qu’un humain étranger. Toutefois, même s’il admet que plusieurs animaux sont capables d’une vie de conscience subjective et qu’ils vivent dans un monde de sens partagé, (...) il ne les considère pas comme des « personnes » selon sa conception exigeante de la « personne » associée à la rationalité, à la maturité, la normalité et l’historicité. Reste qu’être une « personne », en son sens le plus primordial – et plus décisif puisque c’est celui sur lequel s’édifient des conceptions politiques,juridiques et éthiques – signifie simplement être le sujet d’un monde environnant, d’un monde commun et d’une existence biographique. Distinguer deux sens du concept de personne permet de reconnaître que les animaux ont part à la transcendantalité, qu’ils ne sont pas simplement en vie mais ont une vie à la fois biographique et communautaire, même s’ils ne sont pas en mesure de réfléchir à cette vie de conscience qui est la leur pour considérer leur place dans l’enchaînement des générations et pour adopter ce que Husserl appelle une « vocation ». La phénoménologie husserlienne des anomalies permet ainsi de reconnaître que les animaux ressortissent bien de la figure d’autrui, qu’ils sont des alter ego sujets d’une vie de conscience, et qu’à ce titre ils participent pleinement, comme les enfants, les fous et les étrangers, à la co-constitution du monde de l’esprit. (shrink)

This paper explores some connections between depictions of mortality in portrait-painting and philosophical (and psychoanalytic) treatments of our need to be recognized by others. I begin by examining the connection that Georg Simmel makes in his philosophical study of Rembrandt between that artist’s capacity for depicting his portrait subjects as non-repeatable individuals and his depicting them as mortal, or such as to die. After noting that none of Simmel’s explanations of the tragic character of Rembrandt’s portrait subjects seems fully satisfactory, (...) I then turn to Rousseau’s writing on our need for the recognition of others in order to argue that (1) it is at least as sources for the satisfaction of this need that other persons figure for us as irreplaceable (in a way that contrasts with the kinds of satisfaction that intersubstitutable things afford us); and that (2) it is exactly this kind of irreplaceability that Simmel is gesturing at in connecting the concepts of individuality and mortality in his writing on Rembrandt’s portraits. For the remainder of the paper I argue that the foregoing ideas are in fact central to the psychoanalytic writing of Melanie Klein, and in particular (a) Klein’s understanding the infant’s apprehension of other persons as internally related to their anxieties about the possibility of those persons’ irretrievable loss; (b) her understanding that it is as sources of recognition that others’ personhood is made salient to us; and (c) her treatment of portrait-painting as an activity for working through those aforementioned anxieties. (shrink)

Subjectivists about welfare face two problems that pull them in opposite directions. The Paradox Problem, outlined by Ben Bradley, is that, for an agent who desires that her life go badly, subjectivist theories are sometimes unable to give a determinate answer about how well her life goes. This problem demands that subjectivists choose a complex mental attitude to ground well-being. The Infant Problem, from Eden Lin, is that many subjective theories end up denying that infants (and some others) have welfare. (...) This problem demands that subjectivists choose a simple attitude to ground well-being. I argue that subjectivists should respond by adopting Disjunctive Subjectivism. Your welfare depends on your judgements that things are intrinsically good or bad for you (c.f. Dorsey), unless you are not capable of such judgements. In that case, it depends on your desires. I then defend DS against objections from Lin, and the potential charge of being ad hoc. (shrink)

I present Aristotle’s theory of causation in a way that privileges a comparison with contemporary discussion on causation. I do so by selecting in Aristotle’s theory points that are interesting to contemporary discussion and by translating Aristotle in the contemporary philosophical terminology. I compare Aristotle’s views with Mackie’s (1993/1965) and Sosa’s (1993/1980). Mackie is a humean regularist regarding the metaphysics of causal necessity, but his theory postulates some formal aspects of the causal relation which are similar to the Aristotelian theory. (...) By introducing the notion of causal field as a third causal relatum – a sample in which the cause must be picked out as a explanation coextensive to the effect –, Mackie holds a point very similar to Aristotle, inasmuch as both defend that the causal relation is triadic and both have the extensional desideratum. Sosa (1993/1980) defends that every cause necessitates its effect, arguing against classical Humeanism, and he also proposes a causal pluralism. Both these theses are clearly Aristotelian. Aristotle comprehends that the causal relation has three relata: a subjacent C, a property of that subjacent A and a cause B that explains why such property is attributed to that subjacent. The subjacent is similar to Mackie’s notion of causal field, for in regard to it the cause must be coextensive to the property. But Aristotle also says that for each explanandum (property attributed to a subjacent of which one aims to investigate a cause) there is only one cause, which necessitates it. Sosa and Aristotle are similar because both develop a causal pluralism from a theory of causes as having intrinsic necessitation. For Aristotle, causes/explanations [aitiai] are central for attaining scientific knowledge, and its triadic structure determines the syllogistic structure of scientific demonstrations. Aristotle’s theory of causation also involves comprehending the actualisation of capacities (dispositional properties of objects) affirming that the causal relation is resultant from intrinsic properties of the objects, and the cause B is the essence of the explanandum. (shrink)

In this chapter, I attempt to show that evil exists only if what I call Agent Causal Theism (ACT) is true. According to ACT, human beings are immaterial, conscious agents endued (by God) with a power of self-motion: the power to think, decide, and act for ends in light of reasons, but without being externally caused to do so (even by God himself). By contrast, I argue that there is no space for evil in the worldviews of naturalistic Darwinism or (...) theistic Calvinism. (shrink)

S. C. Gibb holds that some mental events enable physical events to take place by acting as ‘double preventers’ which prevent other mental events from effecting change in the physical domain. She argues that this enables a dualist account of psychophysical interaction consistent with the causal relevance of mental events, their distinctness from physical events, the causal closure of the physical and the exclusion of systematic overdetermination. While accepting the causal powers metaphysic, this paper argues that: Closure is maintained only (...) on the assumption of an implausible pre-ordained harmony between preventing and double-preventing mental events. Distinctness is preserved only at the cost of positing brute unexplained powers of mental and physical events to causally interact with each other. Exclusion is systematically violated in a substantial number of everyday cases. The case for Relevance made by the Double Prevention model is accordingly too weak to sustain a dualist approach to mental causation. (shrink)

C. Stephen Layman contends that an argument supporting theism over naturalism can be constructed based on three defensible, non–question-begging premises about the moral order. Previous critics of Layman’s argument have challenged the truth of these premises. We stipulate them arguendo but go on to show that there is a deeper problem: a fourth premise introduced to complete the argument—the “completion premise,” as we call it—is true only if we assume that God exists or we concede that there is no afterlife. (...) We close with suggestions for how Layman’s argument must be strengthened to meet with dialectical success. (shrink)

It is my goal in this paper to offer a strategy for translating universal statements about utopia into particular statements. This is accomplished by drawing out their implicit, temporally embedded, points of reference. Universal statements of the kind I find troublesome are those of the form ‘Utopia is x’, where ‘x’ can be anything from ‘the receding horizon’ to ‘the nation of the virtuous’. To such statements, I want to put the questions: ‘Which utopias?’; ‘In what sense?’; and ‘When was (...) that, is that, or will that be, the case for utopias?’ Through an exploration of these lines of questioning, I arrive at three archetypes of utopian theorizing which serve to provide the answers: namely, utopian historicism, utopian presentism, and utopian futurism. The employment of these archetypes temporally grounds statements about utopia in the past, present, or future, and thus forces discussion of discrete particulars instead of abstract universals with no meaningful referents. (shrink)

In parts one and two of this three-part series, I developed a framework for ahimsic (nonviolent) communication (AC) as an alternative to the standard communicative norm of civility. The framework presented for AC offers various categories of resistance to violence, including nonviolent forms of negotiation, compromise, protest, verbal force, verbal distraction, argumentation, and communicative satyagraha (Gandhian nonviolence applied to communication). I also provided a range of real-life examples of successful AC resistance, including the stories of Derek Black, Daryl Davis, (...) James Lawson, and Antoinette Tuff. These examples demonstrate that AC “works” even against neo-Nazis, KKK grand wizards, angry punch-throwing bikers, and active school shooters. In this third and final installment, I will explain why AC works—better than any form of violent communication (VC). My main claim is that AC derives strategic power from its moral power. As various components of my argument are drawn from the nonviolence tradition more generally, what follows will double as a primer on the morality of nonviolence. However, we will also see significant differences in how we must adapt nonviolent strategy and morality to the case of communication. (shrink)

WILLIAM DAVIS HAS MAINTAINED THAT A SUPER PLEASURE HELMET COULD IN PRINCIPLE SATISFY ALL HUMAN NEEDS, BUT THAT SUCH A MACHINE IS PROBABLY A PRACTICAL IMPOSSIBILITY. I ARGUE THAT THE SUPER PLEASURE HELMET IS CONCEPTUALLY IMPOSSIBLE BY ARGUING THAT A PERSON'S NEEDS CANNOT BE SATISFIED JUST BY BRINGING ABOUT CERTAIN PSYCHOLOGICAL STATES IN THAT PERSON.

Revista IT & C este o publicație trimestrială din domeniile tehnologiei informației și comunicații, și domenii conexe de studiu și practică. -/- Cuprins: -/- EDITORIAL Cu sau fără Internet?, de Nicolae Sfetcu -/- TEHNOLOGIA INFORMAȚIEI Tehnologia blockchain, de Nicolae Sfetcu -/- TELECOMUNICAȚII Rețelele de comunicații 5G, de Nicolae Sfetcu -/- INTERNET Megadatele (Big Data) pe Internet, de Nicolae Sfetcu -/- SOFTWARE Excel: Comenzi rapide și formatare de bază, de Nicolae Sfetcu -/- PROGRAMARE Tipuri de date atomice în Python, de Stephen (...) Davies -/- DEZVOLTARE WEB Variabile în dezvoltarea WordPress, de Nicolae Sfetcu -/- SECURITATE CIBERNETICĂ Securitatea Big Data: Amenințări, de Nicolae Sfetcu -/- AFACERI ONLINE Marketing de conţinut, de Nicolae Sfetcu -/- MEDIA Cercetare și aplicații în rețelele sociale, de Bogdan Batrinca și Philip C Treleaven -/- ISSN 2821– 8469 ISSN – L 2821 – 8469, DOI: 10.58679/IT35986. (shrink)

Revista IT & C este o publicație trimestrială din domeniile tehnologiei informației și comunicații, și domenii conexe de studiu și practică. -/- Cuprins: -/- EDITORIAL Cu sau fără Internet?, de Nicolae Sfetcu Supremația tehnologiilor IT&C, de Nicolae Sfetcu -/- TEHNOLOGIA INFORMAȚIEI Tehnologia blockchain, de Nicolae Sfetcu Ciclul de viață al inteligenței artificiale, de Nicolae Sfetcu -/- TELECOMUNICAȚII Rețelele de comunicații 5G, de Nicolae Sfetcu Proiectarea și arhitectura rețelelor de comunicații 5G, de Nicolae Sfetcu -/- INTERNET Megadatele (Big Data) pe Internet, (...) de Nicolae Sfetcu Cum funcționează Internetul, de Michael Mendez -/- SOFTWARE Deschideți / Creați o imagine în Adobe Photoshop, de Nicolae Sfetcu Excel: Comenzi rapide și formatare de bază, de Nicolae Sfetcu -/- PROGRAMARE Utilizarea limbajului de programare R în știința datelor cu RStudio, de Rafael A. Irizarry Tipuri de date atomice în Python, de Stephen Davies -/- DEZVOLTARE WEB Servere web, de Michael Mendez Variabile în dezvoltarea WordPress, de Nicolae Sfetcu -/- SECURITATE CIBERNETICĂ Securitatea informațiilor în lucrul cu megadate pe Internet, de Nicolae Sfetcu Securitatea Big Data: Amenințări, de Nicolae Sfetcu -/- AFACERI ONLINE Proiectarea și modelarea tehnologiei blockchain – Bitcoin, de Nicolae Sfetcu Marketing de conţinut, de Nicolae Sfetcu -/- MEDIA Analitica rețelelor sociale, de Nicolae Sfetcu Cercetare și aplicații în rețelele sociale, de Bogdan Batrinca și Philip C Treleaven -/- ISSN 2971 – 9097 ISSN-L 2821 – 8469, DOI: 10.58679/IT89910. (shrink)

Review of *New Essays on the A Priori*, an excellent collection edited by Paul Boghossian and Christopher Peacocke. Contributors include: Tyler Burge; Quassim Cassam; Philip Kitcher; Penelope Maddy; Hartry Field; Paul Horwich; Peter Railton; Stephen Yablo; Bob Hale; Crispin Wright; Frank Jackson; Stewart Shapiro; Michael Friedman; Martin Davies; Bill Brewer; and Thomas Nagel.

Chapter 1: "Reason for Hope " by Michael J. Murray Chapter 2: "Theistic Arguments" by William C. Davis Chapter 3: "A Scientific Argument for the Existence of God: The Fine- Tuning Design Argument" by Robin Collins Chapter 4: "God, Evil and Suffering" by Daniel Howard Snyder Chapter 5: "Arguments for Atheism" by John O'Leary Hawthorne Chapter 6: "Faith and Reason" by Caleb Miller Chapter 7: "Religious Pluralism" by Timothy O'Connor Chapter 8: "Eastern Religions" by Robin Collins Chapter 9: "Divine (...) Providence and Human Freedom" by Scott A. Davison Chapter 10: "The Incarnation and the Trinity" by Thomas D. Senor Chapter 11: "The Resurrection of the Body and the Life Everlasting" by Trenton Merricks Chapter 12: "Heaven and Hell" by Michael J. Murray Chapter 13: "Religion and Science" by W. Christopher Stewart Chapter 14: "Miracles and Christian Theism" by J. A. Cover Chapter 15: "Christianity and Ethics" by Frances Howard-Snyder Chapter 16: "The Authority of Scripture" by Douglas Blount. (shrink)

Bu makalede, bilim felsefecisi kimliğiyle tanınan Thomas Kuhn’un eğitim ve özellikle fen eğitimi alanındaki görüşlerine değinilmektedir. Fen eğitimi, bilim, bilimin doğası ve bilim uygulamaları hakkında düşünceler geliştirmeye odaklanarak fen öğrenimi için gerekli olan beceri ve anlayışın geliştirilmesini amaçlamaktadır. Fen eğitiminin temel amaçlarından biri bilimin gerçek doğasının tespit edilmesi ve bu doğrultuda bir eğitim modelinin belirlenmesidir. Bu çerçevede Kuhn’un bilim tarihine yönelik incelemeleri neticesinde ileri sürdüğü paradigma kavramı bilimin doğası ve fen eğitimi konusundaki görüşlerin değişimine yol açmıştır. Kuhn açısından fen eğitimi (...) yürürlükteki bilim yapma tarzının temelinde yatan paradigma ve öğretilerinin bilim insanlarına ve öğrencilere aktarılması sürecidir, bu nedenle fen eğitimi yalnızca olağan bilim döneminde mümkündür. Kuhn’un eğitim modeli, mevcut paradigmayla ilişkili olarak karşılaşılan bulmaca ya da sorunları çeşitli örneklerden hareketle tekrar tekrar çözmeye çalışan öğrenciler aracılığıyla gerçekleştirilir. Kuhn’un olağan bilimin sınırları içerisinde kalarak değerlendirdiği fen eğitimi anlayışı eleştirel düşünceyi engellediği iddiasıyla Karl Popper, John Watkins ve Richard Bailey tarafından katı, tutucu, dogmatik ve endoktrinasyonu vurgulayan bir eğitim anlayışı olarak görülmektedir. Bu çerçevede makalede, öncelikli olarak Kuhn’un bilimin doğası ve bilimin gelişim tarzına yönelik belirlemeleri doğrultusunda fen eğitimine yönelik düşünceleri ve bu düşüncelerin eğitim alanındaki yansımaları incelenmektedir. Ardından, Kuhn’un fen eğitimi üzerine görüşlerinin iddia edildiği gibi dogmatik bir yapıda olmadığı, endoktrinasyonu ya da zorla öğretimi vurgulamadığı, bu tür yorumların radikal bir yaklaşımdan öteye gidemediği ileri sürülmektedir. Son olarak makalede, Kuhn’un fen eğitimi anlayışının yalnızca bir durum tespiti ya da bir fen eğitimi tasviri olarak değerlendirilmesi gerektiği düşüncesi ön plana çıkarılmaktadır. -/- In this article, Thomas Kuhn’s impact, who is known as a philosopher of science, on science education are mentioned. Science education aims to develop the skills and understanding necessary for science learning, with a focus on developing ideas about science and the nature of science. One of the main purposes of science education is to determine the true nature of science and to determine an education model in this direction. In this context, the concept of paradigm, which Kuhn put forward as a result of his studies on the history of science, has led to a change in views on the nature of science and science education. For Kuhn, science education is the process of conveying the paradigm underlying the current way of doing science to scientists and students because science education is possible only in the normal science period. Kuhn’s educational model is carried out through students who repeatedly try to solve puzzles or problems encountered in relation to the current paradigm. Kuhn’s understanding of science education is seen by Karl Popper, John Watkins and Richard Bailey as a rigid, conservative, dogmatic and indoctrinational education approach with the claim that it prevents critical thinking. In this context, the article primarily examines Kuhn’s thoughts on science education and the reflections of these thoughts in the field of education. Then, it is argued that Kuhn’s views on science education are not dogmatic as claimed, he does not emphasize indoctrination, and that such interpretations cannot go beyond a radical approach. Finally, in the article, it is emphasized that Kuhn’s understanding of science education should be evaluated only as a description of science education. (shrink)

This essay frames systemic patterns of mental abuse against women of color and Indigenous women on Turtle Island (North America) in terms of larger design-of-distribution strategies in settler colonial societies, as these societies use various forms of social power to distribute, reproduce, and automate social inequalities (including public health precarities and mortality disadvantages) that skew socio-economic gain continuously toward white settler populations and their descendants. It departs from traditional studies in gender-based violence research that frame mental abuses such as gaslighting--commonly (...) understood as mental manipulation through lying or deceit--stochastically, as chance-driven interpersonal phenomena. Building on structural analyses of knowledge in political epistemology (Dotson 2012, Berenstain 2016), political theory (Davis and Ernst 2017), and Indigenous social theory (Tuck and Yang 2012), I develop the notion of cultural gaslighting to refer to the social and historical infrastructural support mechanisms that disproportionately produce abusive mental ambients in settler colonial cultures in order to further the ends of cultural genocide and dispossession. I conclude by proposing a social epidemiological account of gaslighting that a) highlights the public health harms of abusive ambients for minority populations, b) illuminates the hidden rules of social structure in settler colonial societies, and c) amplifies the corresponding need for structural reparations. (shrink)

Le but de ce recueil est d’offrir des commentaires accessibles et introductifs aux textes classiques qu’ils accompagnent, en ouvrant des perspectives de discussion sur le thème du capitalisme. C’est en ce sens qu’Emmanuel Chaput lance le débat en commentant le texte de Pierre-Joseph Proudhon, « Qu’est-ce que la propriété ? ». Les textes de Karl Marx ne sont bien sûr pas laissés pour compte : Samuel-Élie Lesage s’engage fermement dans cette voie en discutant L’idéologie allemande de Karl Marx, Christiane (...) class='Hi'>Bailey nous offre d’approcher différemment l’œuvre marxienne en abordant son traitement de la question animale dans des extraits du Manifeste du parti communiste et du Travail salarié et capital, et Mathieu Joffre-Lainé nous présente une analyse fine des questions proprement économiques du Capital. Abordant les alternatives au capitalisme dans la pensée de Léon Bourgeois, Éliot Litalien commente La Solidarité et Simon-Pierre Chevarie-Cossette s’attaque à l’analyse de l’Essai d’une philosophie de la solidarité. Enfin, en liant capitalisme, patriarcat et pouvoir politique, Tara Chanady propose une lecture du texte Du mariage et de l’amour de Emma Goldman. La conclusion de Marie-Eve Jalbert se situe dans une perspective contemporaine et critique en décortiquant la critique du socialisme avancée par Friedrich A. Hayek. (shrink)

Emphasizing the human body in all of its forms, Beauty Unlimited expands the boundaries of what is meant by beauty both geographically and aesthetically. Peg Zeglin Brand and an international group of contributors interrogate the body and the meaning of physical beauty in this multidisciplinary volume. This striking and provocative book explores the history of bodily beautification; the physicality of socially or culturally determined choices of beautification; the interplay of gender, race, class, age, sexuality, and ethnicity within and on the (...) body; and the aesthetic meaning of the concept of beauty in an increasingly globalized world. Foreward by Carolyn Korsmeyer. Authors include Noel Carroll, Gregory Velazco Y Trianosky, Monique Roelofs, Whitney Davis, Eleanor Heartney, Diana Tietjens Meyers, Phoebe M. Farris, Mary Devereaux, Jo Ellen Jacobs, Karina L. Cespedes-Cortes and Paul C. Taylor, Fedwa Malti-Douglas, Stephen Davies, Jane Duran, Valerie Sullivan Fuchs, Keith Lehrer, Allen Douglas, Cynthia Freeland, Eva Kit Wah Man, Mary Bittner Wiseman, and Peg Brand's essay, "ORLAN Revisited: Disembodied Virtual Hybrid Beauty.". (shrink)

The file on this site provides the slides for a lecture given in Hangzhou in May 2018, and the lecture itself is available at the URL beginning 'sms' in the set of links provided in connection with this item. -/- It is commonly assumed that regular physics underpins biology. Here it is proposed, in a synthesis of ideas by various authors, that in reality structures and mechanisms of a biological character underpin the world studied by physicists, in principle supplying detail (...) in the domain that according to regular physics is of an indeterminate character. In regular physics mathematical equations are primary, but this constraint leads to problems with reconciling theory and reality. Biology on the other hand typically does not characterise nature in quantitative terms, instead investigating in detail important complex interrelationships between parts, leading to an understanding of the systems concerned that is in some respects beyond that which prevails in regular physics. It makes contact with quantum physics in various ways, for example in that both involve interactions between observer and observed, an insight that explains what is special about processes involving observation, justifying in the quantum physics context the replacement of the unphysical many-worlds picture by one involving collapse. The link with biology furthermore clarifies Wheeler’s suggestion that a multiplicity of observations can lead to the ‘fabrication of form’, including the insight that this process depends on very specific ‘structures with power’ related to the 'semiotic scaffolding' of the application of sign theory to biology known as biosemiotics. -/- The observer-observed 'circle' of Wheeler and Yardley is a special case of a more general phenomenon, oppositional dynamics, related to the 'intra-action' of Barad's Agential Realism, involving cooperating systems such as mind and matter, abstract and concrete, observer and observed, that preserve their identities while interacting with one another in such a way as to act as a unit. A third system may also be involved, the mediating system of Peirce linking the two together. Such a situation of changing connections and separations may plausibly lead in the future to an understanding of how complex systems are able to evolve to produce 'life, the universe and everything'. -/- (Added 1 July 2018) The general structure proposed here as an alternative to a mathematics-based physics can be usefully characterised by relating it to different disciplines and the specialised concepts utilised therein. In theoretical physics, the test for the correctness of a theory typically involves numerical predictions, corresponding to which theories are expressed in terms of equations, that is to say assertions that two quantities have identical values. Equations have a lesser significance in biology which typically talks in terms of functional mechanisms, dependent for example on details of chemistry and concepts such as genes, natural selection, signals and geometrical or topologically motivated concepts such as the interconnections between systems and the unfolding of DNA. Biosemiotics adds to this the concept of signs and their interpretation, implying novel concepts such as semiotic scaffolding and the semiosphere, code duality, and appreciation of the different types of signs, including symbols and their capacity for abstraction and use in language systems. Circular Theory adds to this picture, as do the ideas of Barad, considerations such as the idea of oppositional dynamics. The proposals in this lecture can be regarded as the idea that concepts such as those deriving from biosemiotics have more general applicability than just conventional biology and may apply, in some circumstances, to nonlinear systems generally, including the domain new to science hypothesised to underlie the phenomena of present-day physics. -/- The task then has to be to restore the mathematical aspect presumed, in this picture, not to be fundamental as it is in conventional theory. Deacon has invoked a complex sequence of evolutionary steps to account for the emergence over time of human language systems, and correspondingly mathematical behaviour can be subsumed under the general evolutionary mechanisms of biosemiotics (cf. also the proposals of Davis and Hersh regarding the nature of mathematics), so that the mathematical behaviour of physical systems is consistent with the proposed scheme. In conclusion, it is suggested that theoretical physicists should cease expecting to find some universal mathematical ‘theory of everything’, and focus instead on understanding in more detail complex systems exhibiting behaviour of a biological character, extending existing understanding. This may in time provide a more fruitful understanding of the natural world than does the regular approach. The essential concepts have an observational basis from both biology and the little-known discipline of cymatics (a discipline concerned with the remarkable patterns that specific waveforms can give rise to), while again computer simulations also offer promise in providing insight into the complex behaviours involved in the above proposals. -/- References -/- Jesper Hoffmeyer, Semiotic Scaffolding of Living Systems. Commens, a Digital Companion to C. S. Peirce (on Commens web site). Terrence Deacon, The Symbolic Species, W.W. Norton & Co. Karen Barad, Meeting the Universe Halfway: Quantum Physics and the Entanglement of Matter and Meaning, Duke University Press. Philip Davis and Reuben Hersh, The Mathematical Experience, Penguin. Ilexa Yardley, Circular Theory. (shrink)

PRINCÍPIOS DA DIGESTÃO DOS ALIMENTOS NOS BEZERROS -/- -/- E. I. C. da Silva -/- Departamento de Agropecuária – IFPE Campus Belo Jardim -/- Departamento de Zootecnia – UFRPE sede -/- -/- PRINCÍPIOS DA DIGESTÃO DOS ALIMENTOS NOS BEZERROS -/- -/- INTRODUÇÃO -/- Se todos os bezerros pudessem ser criados por suas mães, haveria pouca necessidade de inúmeros livros, artigos e trabalhos, como esse, sobre a criação e o manejo básico desses animais. A maioria das vacas desempenha um ótimo papel (...) na criação dos seus descendentes, desde que sejam tomados os devidos cuidados com relação a alimentação, saúde e a outros aspectos relativos à criação desses neonatos. A essência da pecuária bovina relativa à criação de bezerros é manter esses animais vivos e aptos o suficiente para desempenhar atividades produtivas de grande importância na propriedade. Para tanto, os criadores necessitam entender o desenvolvimento do trato digestivo do bezerro e os conceitos básicos da digestão dos alimentos por ele, e é isso que pretendo aclarar de forma clara e concisa com esse trabalho. -/- -/- 1.1 O TRATO DIGESTIVO DO BEZERRO -/- Um animal adulto necessita de quatro estômagos funcionais para dar-lhe a capacidade de utilizar a ampla gama de alimentos disponíveis. -/- O retículo e o rúmen abrigam milhões de micróbios que fermentam e digerem o material vegetal, em especial às presentes nas forragens. O omaso permite a absorção de água do conteúdo do intestino. O abomaso, ou quarto estômago, é o verdadeiro estômago, comparável ao dos humanos, e permite a digestão ácida dos alimentos. -/- O bezerro muito jovem não desenvolve a capacidade de digerir o pasto, sendo assim o abomaso é o único estômago funcional ao nascer. Tanto os animais recém-nascidos como os adultos têm um intestino delgado funcional que permite a digestão alcalina dos alimentos. -/- A figura 1 ilustra a anatomia dos estômagos e intestino delgado de um bezerro recém-nascido. Esse diagrama esquemático mostra as dimensões relativas dos quatro estômagos, o sulco esofágico, que vai do esôfago até o abomaso, e o esfíncter pilórico ou válvula no fundo do abomaso, que controla a velocidade de movimento do conteúdo do intestino no duodeno. -/- O omaso e o abomaso representam cerca de 70% da capacidade total do estômago no bezerro recém-nascido. Por outro lado, nas vacas adultas, eles compõem apenas 30% da capacidade total do estômago (figura 2). -/- A digestão dos alimentos é auxiliada pela secreção de certos produtos químicos denominados enzimas, que estão presentes nas várias partes do intestino. Por exemplo, os bezerros produzem a enzima renina na parede do abomasal para auxiliar na digestão das proteínas do leite, enquanto a lactase é produzida na parede do duodeno para a digestão do açúcar do leite (lactose). Estas enzimas operam mais eficazmente em diferentes níveis de acidez no conteúdo do intestino, ácido no abomaso e alcalino no duodeno. Para conseguir isso, o bezerro segrega eletrólitos, ou sais minerais, com as enzimas, para mudar o conteúdo do intestino de um tipo para outro. -/- Os produtos finais da digestão dos diferentes componentes dos alimentos são absorvidos através da parede do intestino, mediante as vilosidades intestinais, para a corrente sanguínea, onde são levados para as diferentes partes do corpo para o crescimento e desenvolvimento do animal. -/- -/- 1.2 O BEZERRO ALIMENTADO COM LEITE -/- O Leite ou substituto do leite, quer seja apreendido através de uma teta ou bebido de um balde, é canalizado do esôfago através do sulco esofágico para o abomaso. Este sulco é um pequeno canal na parede do rúmen que é controlado por músculos que permitem que os líquidos sejam diretamente enviados para o abomaso e que não entrem no rúmen. O sulco é ativado em resposta a diferentes estímulos. Funciona bem quando os bezerros amamentam-se através das tetas das mães, mas às vezes não funciona quando bebem de um balde. Essa parece ser uma condição psicológica em resposta aos bezerros separados de suas mães. A maioria dos bezerros podem ser treinados pelo tratador para beber o leite do balde rapidamente e bem, a metodologia empregada é a da persuasão do animal, ao qual o mesmo possa responder positivamente à nova rotina diária e à mãe substituta na forma do criador do bezerro. Quando o leite ou o substituto do leite entra no abomaso, forma um coágulo firme dentro de alguns minutos sob a influência das enzimas renina e pepsina. Este é o mesmo processo envolvido na fabricação de queijo ou junket, usando renina para coagular a proteína do leite. A coagulação do leite retarda a taxa em que flui para fora do abomaso, permitindo assim uma liberação constante de nutrientes alimentares em todo o intestino e, eventualmente, para a corrente sanguínea. Pode levar de 12 a 18 horas para que a coalhada de leite seja totalmente digerida. -/- As enzimas que atuam nas proteínas do leite requerem um ambiente ácido e esse é fornecido pela secreção do ácido clorídrico no abomaso. No entanto, até que a digestão ácida esteja operando de forma eficiente, e isso pode levar até sete dias, a única forma de proteína que pode ser digerida é a caseína. Não há substituto para a caseína no bezerro muito jovem. Os substitutos do leite que contêm outras formas de proteína não podem ser devidamente digeridos até que os bezerros sejam mais velhos. Logo, é necessário muito cuidado para não fornecer substitutos ou sucedâneos que contenham fontes proteicas que não possam ser digeridas pelo estômago do animal, para que não ocasione complicações gastrintestinais. -/- A digestão do leite pode ser melhorada com a inclusão de coalho, que pode ser obtido a partir de fábricas de queijo ou aditivos comerciais de leite de bezerro para a primeira semana ou mais. Esses produtos comerciais podem fornecer ácidos adicionais para reduzir o pH abomasal e incrementar a quantidade de enzimas e bactérias específicas para aumentar a taxa de degradação da coalhada de leite. Tais aditivos são chamados probióticos, na medida em que ajudam nos processos digestivos normais. A pesquisa nem sempre os encontrou para melhorar o desempenho e a saúde dos bezerros, e eles são mais propensos a ser benéficos quando os bezerros estão sofrendo de problemas de saúde. Além disso, a sua eficácia, em termos de custo-benefício é, por vezes, questionada. -/- Qualquer leite de uma alimentação anterior está envolvido neste coágulo recém-formado. As proteínas líquidas de soro de leite e a lactose são rapidamente separadas da coalhada de leite e passam para o abomaso. A gordura do leite contida na coalhada de leite é decomposta por outra enzima, a lipase. Esta é secretado na boca pela saliva e incorporada quando o leite é engolido. A alimentação pelas tetas em vez da alimentação através do balde parece produzir mais saliva e, portanto, mais lipase. A digestão adicional da proteína do leite e da gordura ocorre no duodeno com a ajuda das enzimas produzidas no pâncreas. -/- A lactose, que é rapidamente liberada da coalhada de leite no abomaso, é dividida em glicose e galactose e estas são absorvidas na corrente sanguínea para formar a principal fonte de energia para os bezerros jovens. -/- As gorduras são divididas em ácidos graxos e glicerol para absorção e uso como energia, enquanto as proteínas são divididas em aminoácidos e peptídeos para absorção e uso como fontes de proteína corporal. -/- O amido de cereais, por exemplo, é uma importante fonte de energia em bezerros mais velhos, mas esses animais, nas suas primeiras semanas de vida, não conseguem digerir o amido. -/- O abomaso não é ácido até que o bezerro tenha 1-2 dias de idade e isso apresenta vantagens e desvantagens. A principal vantagem é que as proteínas imunes no colostro não podem ser digeridas nesse compartimento estomacal, por isso são absorvidas na corrente sanguínea na mesma forma quando produzidas pela vaca. Isso garante o seu papel como anticorpos para proteger contra as doenças e infecções. A baixa acidez do conteúdo abomasal no bezerro recém-nascido constitui um risco potencial das bactérias (e provavelmente vírus) tomadas através da boca. Estes não serão mortos pela digestão ácida, sendo assim podem passar para os intestinos, onde podem fazer mal ao bezerro recém-nascido. -/- Todos os bezerros pegam bactérias nos primeiros dias de vida e isso é essencial para o desenvolvimento normal do rúmen (flora microbiana). No entanto, a primeira bactéria a colonizar o intestino também pode causar danos. Desde que o bezerro tenha bebido colostro, os anticorpos maternos podem controlar a propagação dessas bactérias mais nocivas. -/- O bezerro alimentado com leite deve, então, produzir uma digestão ácida no abomaso e uma digestão alcalina no duodeno. Isto é conseguido pela produção de eletrólitos na parede do intestino. -/- Bezerros que sofrem de escoriações devido a distúrbios nutricionais ou infecções bacterianas podem perder grandes quantidades de água e eletrólitos em suas fezes. Estes devem ser reabastecidos como parte do tratamento para as escoriações. -/- O colostro é o primeiro leite produzido por vacas recém-paridas. Além de fornecer nutrientes essenciais para a alimentação animal, fornece anticorpos maternos que permitem a transferência passiva de imunidade contra doenças. As recomendações para a alimentação com colostro serão abordadas brevemente em outro trabalho. -/- -/- 1.3 DESENVOLVIMENTO DO RÚMEN E O PROCESSO DE DESMAME -/- Quando os bezerros são desmamados, o custo da criação diminui acentuadamente. Os custos de alimentação são mais baixos, os insumos de trabalho são reduzidos e a incidência de problemas de saúde é menor. No sentido econômico, faz sentido desmamar os bezerros assim que for razoável. No entanto, o bezerro é forçado a sofrer várias mudanças dramáticas, a saber: -/-  A fonte primária de nutrientes muda de líquido para sólido. -/-  A quantidade de matéria seca que o bezerro recebe é reduzida. -/-  O bezerro deve adaptar-se de um tipo monogástrico a um ruminante de digestão, que inclui a fermentação de alimentos. -/-  Mudanças na habitação e no manejo muitas vezes ocorrem em torno do desmame, o que pode aumentar o estresse. -/- Ao nascer, o rúmen é uma parte pequena e estéril do intestino que, ao desmame deve se tornar o compartimento mais importante dos quatro estômagos. Deve aumentar em tamanho, atividade metabólica interna e fluxo sanguíneo externo. Os cinco requisitos para o desenvolvimento ruminal são: -/-  Estabelecimento de bactérias. -/-  Líquido. -/-  Saída de material (ação muscular). -/-  Capacidade absortiva do tecido. -/-  Substrato para permitir o crescimento bacteriano, tais como minerais reciclados, bem como nutrientes para alimentação. -/- Antes do consumo de alimentos sólidos, as bactérias existentes fermentam o cabelo ingerido, o estrato e o leite que flui do abomaso para o rúmen. A maior parte da água que entra no rúmen provém da água livre (água real não contida no leite ou na solução substituta do leite). O leite contornará o rúmen através do sulco esofágico, enquanto a água livre não. -/- O rúmen se desenvolve a partir de um órgão muito pequeno em bezerros recém-nascidos (1-2 L) para a parte mais importante do intestino (25-30 L) por 3 meses de idade. Ele pode aumentar muito rapidamente durante as primeiras semanas de vida, dado o manejo da alimentação direita. -/- O crescimento do rúmen ocorre apenas sob a influência dos produtos finais da digestão no mesmo, que resultam da fermentação de alimentos sólidos pelos micróbios presentes nesse compartimento. O desenvolvimento ocorre em grande parte através do crescimento das papilas ruminais (figura 5 e 6) na parede ruminal (estruturas semelhantes a folhas na superfície interna), que aumentam a área superficial do rúmen e, portanto, a sua capacidade de absorver estes produtos finais de digestão. Portanto, os concentrados favorecem melhor o desenvolvimento dessas papilas ruminais. Para tanto, é necessário, com um tempo, ir incrementando a dieta sólida gradativamente para que esses animais deixem de consumir o leite das vacas produtoras e possam alimentar-se de ração e pastagens, que é a finalidade da criação de bovinos, ou seja, criar animais com menor custo possível e engordá-los através de ração, mas principalmente de pastagens. -/- A capacidade do rúmen e a ingestão de alimentos sólidos estão intimamente relacionadas. O desenvolvimento do rúmen é muito lento em bezerros alimentados com grandes quantidades de leite. O leite satisfaz seus apetites para que eles não tenham fome suficiente para comer qualquer alimento sólido. Logo, é necessário diminuir paulatinamente o fornecedor do leite para esses animais, favorecendo a ingestão de alimentos sólidos e desenvolvendo o rúmen, estômago que digere as fibras das forragens e que os tona animais peculiares. -/- A ruminação pode ocorrer com cerca de 2 semanas de idade e é uma boa indicação de que o rúmen está se desenvolvendo. Alimentos sólidos, bem como a ruminação, estimulam a produção de saliva e isso fornece nutrientes como ureia e bicarbonato de sódio para produzir os substratos para o crescimento e desenvolvimento da flora bacteriana. -/- No desmame precoce, é importante limitar a quantidade de leite oferecida e a sua disponibilidade durante todo o dia. Também é essencial fornecer alimentos sólidos. Os grosseiros (de baixa ou alta qualidade) devem ser oferecidos em combinação com concentrados de alta qualidade. -/- O criador deve tomar cuidado com o fornecimento de alimentos como a ração farelada, uma vez que essa ração pode entrar pelas vias nasais e ocasionar complicações respiratórias; há alguns relatos de bezerros mortos após a ingestão de ração farelada, na autópsia de um dos casos foi diagnosticada uma morte por esses grãos farelados presentes no pulmão. Portanto, para evitar complicações o ideal é que se forneça uma ração denominada peletizada. -/- Os alimentos grosseiros (volumosos) estimulam o desenvolvimento do rúmen, enquanto os concentrados fornecem nutrientes para a alimentação animal que não são fornecidos pelas quantidades limitadas de leite oferecidas. Sem os concentrados, o crescimento dos bezerros é lento, mas o rúmen ainda se desenvolve, resultando em animais barrigudos. -/- A ureia fornece nitrogênio para os micróbios, enquanto o bicarbonato de sódio atua como um tampão ruminal, ajudando a manter um pH estável no conteúdo do rúmen. Isso é, particularmente, importante quando os bezerros comem grandes quantidades de grãos de cereais na vida adulta, pois os micróbios do rúmen podem produzir muito ácido lático durante a fermentação desse material. -/- Envenenamento por grãos ou acidose ocorre quando os níveis de ácido lático são excessivamente elevados e tornam-se tóxicos para os micróbios do rúmen e, eventualmente, para o animal. Assim como os produtos finais que são absorvidos através da parede do rúmen, a fermentação microbiana produz os gases dióxido de carbono e metano e estes são normalmente exalados. Quando algo impede a fuga destes gases do rúmen, o inchaço pode se manifestar em qualquer fase da vida, diz-se do animal estufado. -/- -/- 1.4 O PAPEL DA FORRAGEM NO PROCESSO DE DESMAME -/- Existem inúmeras controvérsias acerca do papel da forragem no processo de desmame. Pesquisas realizadas na década de 1980 indicaram claramente que a forragem era benéfica, enquanto pesquisas da década de 1990 descobriram que nem sempre era necessário o fornecimento da forragem para que os bezerros fossem desmamados e que não sofresse estresse e nem apresentasse baixa eficiência produtiva e reprodutiva no futuro. Na maioria das pesquisas anteriores, os bezerros eram desmamados com a oferta de concentrados moídos como pellets com ou sem a presença de feno longo ou palha. Porém, a inclusão de forragens na dieta melhorou a ingestão e o desempenho, além de permitir o desmame precoce. -/- Na pesquisa posterior, os bezerros geralmente alimentavam-se de concentrados grosseiramente moídos, além de alguns volumosos, enquanto alguns até incluíam volumosos picados finos na mistura (às vezes chamados de mistura muesli por apresentar o capim e a ração). Nesses estudos, verificou-se que a inclusão de feno ou palha adicional teve pouco efeito no desempenho pré-desmame. -/- Os sistemas de criação de bezerros australianos frequentemente diferem dos demais, especialmente em áreas de parto sazonais. Um número excessivo elevado de bezerros precisam ser criados de uma só vez para lhes fornecer, a todos, currais individuais durante todo o seu período de amamentação. Consequentemente, os bezerros são criados em grupos. Além disso, os ingredientes da maioria dos concentrados para esses animais são finamente moídos. Nessas situações, descobriu-se que a palha limpa é um alimento útil e que deve ser incluso no período pré-desmame. Alguns agricultores preferem feno de boa qualidade, porém estes agricultores geralmente têm bezerros em grupos muito pequenos, muitas vezes um ou dois, por isso possuem maior controle sobre a ingestão de forragem. -/- Figura 7: A alimentação volumosa de bezerros alimentados com leite é uma questão controversa. Imagem cedida pelo IPA -/- É difícil e, portanto, mais caro que os produtores de rações incorporem feno picado nas refeições dos bezerros. Os pellets são muito mais fáceis, pois eles vão fluir para silos. Por fim, os produtores de leite devem incluir o componente volumoso no regime alimentar pré-desmame. A pastagem não é a fonte ideal de forragem volumosa para os bezerros alimentados com leite, uma vez que possui muito pouca fibra e uma baixa densidade de energia alimentar. O seu elevado teor de água limita a sua capacidade de fornecer energia alimentar adequada aos animais em crescimento. Para ingerir a pastagem a capacidade ruminal deveria ser maior, bezerros jovens simplesmente não conseguem comer pasto suficiente, a menos que seja de alta em qualidade. -/- Os bezerros criados com leite e fornecimento gradual de concentrados apresentam uma boa função ruminal às 3 semanas de vida, além de possuírem uma suficiente capacidade ruminal para o desmame entre às 4-6 semanas de idade. No entanto, se a dieta for baseada em leite restrito e pastagem de alta qualidade, a capacidade do rúmen pode não ser suficiente para o desmame até às 8-10 semanas de vida. Mesmo assim, as taxas de crescimento seriam menores em bezerros desmamados com base alimentar somente à pasto, uma vez que a ingestão de energia é insuficiente devido às limitações físicas da capacidade ruminal. -/- Se a qualidade for muito boa e produza apetite, os bezerros preferem volumosos ao invés do concentrado, o que leva a uma ingestão reduzida de nutrientes durante alimentação, tendo como efeito um crescimento mais lento. Quando volumosos e concentrados fornecem apetite no animal, juntamente com o leite limitado, os bezerros podem comer cerca de 10% de palha e 90% de concentrados. Sem o volumoso e a ruminação resultante, o desenvolvimento do rúmen será mais lento devido à falta de saliva e produtos finais da digestão de fibras presentes na parede celular das forragens. -/- -/- REFERÊNCIAS BIBLIOGRÁFICAS -/- -/- BEN ASHER, Aharon. Manual de cría de becerras. Zaragoza: Acribia, 1999. -/- BITTAR, Carla Maris Machado; PORTAL, Rafaela Nunes Sanchez; PEREIRA, Anna Carolina Fett da Cunha. Criação de bezerras leiteiras. Piracicaba: EDUSP, 2018. -/- BLUM, J. W. Nutritional physiology of neonatal calves. Journal of animal physiology and animal nutrition, v. 90, n. 1‐2, p. 1-11, 2006. -/- CAMPOS, OF de. Criação de bezerros até a desmama. Coronel Pacheco: EMBRAPA/CNPGL, 1985. -/- COELHO, S. G. Criação de bezerros. II Simpósio Mineiro de Buiatria, Anais., Belo Horizonte, 2005. -/- DAVIS, Carl L. et al. The development, nutrition, and management of the young calf. Iowa State University Press, 1998. -/- DE OLIVEIRA, Juliana Silva; DE MOURA ZANINE, Anderson; SANTOS, Edson Mauro. Fisiologia, manejo e alimentação de bezerros de corte. Arquivos de Ciências Veterinárias e Zoologia da UNIPAR, v. 10, n. 1, 2007. -/- DRACKLEY, James K. Calf nutrition from birth to breeding. Veterinary Clinics of North America: Food Animal Practice, v. 24, n. 1, p. 55-86, 2008. -/- FERREIRA, Lucas Silveira et al. Desempenho animal e desenvolvimento do rúmen de bezerros leiteiros aleitados com leite integral ou sucedâneo. Boletim de Indústria Animal, v. 65, n. 4, p. 337-345, 2008. -/- GUILLOTEAU, P.; ZABIELSKI, R.; BLUM, J. W. Gastrointestinal tract and digestion in the young ruminant: ontogenesis, adaptations, consequences and manipulations. J Physiol Pharmacol, v. 60, n. Suppl 1, p. 37-46, 2009. -/- HUBER, J. T. Development of the digestive and metabolic apparatus of the calf. Journal of Dairy Science, v. 52, n. 8, p. 1303-1315, 1969. -/- LONGENBACH, J. I.; HEINRICHS, Arlyn Judson. A review of the importance and physiological role of curd formation in the abomasum of young calves. Animal feed science and technology, v. 73, n. 1-2, p. 85-97, 1998. -/- LOPES, Marcos Aurélio; VIEIRA, P. de F. Criação de bezerros leiteiros. Jaboticabal: Funep, 1998. -/- LUCCI, Carlos de Sousa. Bovinos leiteiros jovens: nutrição, manejo, doenças. São Paulo: Nobel, 1989. -/- ROY, James Henry Barstow et al. The calf. Boston: Butterworths., 1980. -/- SAVAGE, E. S.; MCCAY, C. M. The nutrition of calves; A review. Journal of Dairy Science, v. 25, n. 7, p. 595-650, 1942. -/- THIVEND, P.; TOULLEC, R.; GUILLOTEAU, P. Digestive adaptation in the preruminant. In: Digestive physiology and metabolism in ruminants. Springer, Dordrecht, 1980. p. 561-585. (shrink)

In "Evil and the Justice of God", N.T. Wright presses the point that attempting to solve the philosophical problem of evil is an immature response to the existence of evil--a response that belittles the real problem of evil, which is just the fact that evil is bad and needs to be dealt with. As you might expect, I am not inclined to endorse this sort of sweeping indictment of the entire field of research on the philosophical problem of evil. (I (...) sort of doubt that Wright really meant to either.) But I do think that there is a kernel of truth in what I take to be Wright's fundamental objection to attempts to solve the philosophical problem of evil. In the first section of what follows, I will try briefly to explain why. I will then go on to argue that, despite this fact, certain efforts at solving the problem of evil avoid Wright's objection. Indeed, drawing on recent work by Elenore Stump, I will argue that one perfectly legitimate way to try to solve the philosophical problem of evil is to follow precisely what seems to be the main piece of advice in "Evil and the Justice of God": namely, to look more seriously than we have at the attitudes taken toward evil by human authors of and characters in the Bible, and to attend more carefully to what the Bible says about how God deals with evil. (shrink)

Abstract: If anger is the emotion of injustice, and if most injustices have prominent epistemic dimensions, then where is the anger in epistemic injustice? Despite the question my task is not to account for the lack of attention to anger in epistemic injustice discussions. Instead, I argue that a particular texture of transformative anger – a knowing resistant anger – offers marginalized knowers a powerful resource for countering epistemic injustice. I begin by making visible the anger that saturates the silences (...) that epistemic injustices repeatedly manufacture and explain the obvious: silencing practices produce angry experiences. I focus on tone policing and tone vigilance to illustrate the relationship between silencing and angry knowledge management. Next, I use María Lugones’s pluralist account of anger to bring out the epistemic dimensions of knowing resistant anger in a way that also calls attention to their histories and felt textures. The final section draws on feminist scholarship about the transformative power of angry knowledge to suggest how it might serve as a resource for resisting epistemic injustice. (shrink)

Artificial intelligence (AI) and robotics are digital technologies that will have significant impact on the development of humanity in the near future. They have raised fundamental questions about what we should do with these systems, what the systems themselves should do, what risks they involve, and how we can control these. - After the Introduction to the field (§1), the main themes (§2) of this article are: Ethical issues that arise with AI systems as objects, i.e., tools made and used (...) by humans. This includes issues of privacy (§2.1) and manipulation (§2.2), opacity (§2.3) and bias (§2.4), human-robot interaction (§2.5), employment (§2.6), and the effects of autonomy (§2.7). Then AI systems as subjects, i.e., ethics for the AI systems themselves in machine ethics (§2.8) and artificial moral agency (§2.9). Finally, the problem of a possible future AI superintelligence leading to a “singularity” (§2.10). We close with a remark on the vision of AI (§3). - For each section within these themes, we provide a general explanation of the ethical issues, outline existing positions and arguments, then analyse how these play out with current technologies and finally, what policy consequences may be drawn. (shrink)

Classrooms are unlevel knowing fields, contested terrains where knowledge and ignorance are produced and circulate with equal vigor, and where members of dominant groups are accustomed to having an epistemic home-terrain advantage. My project focuses on one form of resistance that regularly surfaces in discussions with social-justice content. Privilege-preserving epistemic pushback is a variety of willful ignorance that many members of dominant groups engage in when asked to consider both the lived and structural injustices that members of marginalized groups experience (...) daily. I argue that this dominant form of resistance is neither an expression of skepticism nor a critical-thinking practice. I suggest that standard philosophical engagements with these expressions of resistance are incapable of tracking the harms of privilege-preserving epistemic pushback. I recommend treating this pushback as a “shadow text,” that is, as a text that runs alongside the readings in ways that offer no epistemic friction. I offer this as one critical philosophical practice for making students mindful of the ways they contribute to the circulation of ignorance and epistemic violence during the course of their discussions. (shrink)

The paper offers a solution to the generality problem for a reliabilist epistemology, by developing an “algorithm and parameters” scheme for type-individuating cognitive processes. Algorithms are detailed procedures for mapping inputs to outputs. Parameters are psychological variables that systematically affect processing. The relevant process type for a given token is given by the complete algorithmic characterization of the token, along with the values of all the causally relevant parameters. The typing that results is far removed from the typings of folk (...) psychology, and from much of the epistemology literature. But it is principled and empirically grounded, and shows good prospects for yielding the desired epistemological verdicts. The paper articulates and elaborates the theory, drawing out some of its consequences. Toward the end, the fleshed-out theory is applied to two important case studies: hallucination and cognitive penetration of perception. (shrink)

Some contextually sensitive expressions are such that their context independent conventional meanings need to be in some way supplemented in context for the expressions to secure semantic values in those contexts. As we’ll see, it is not clear that there is a paradigm here, but ‘he’ used demonstratively is a clear example of such an expression. Call expressions of this sort supplementives in order to highlight the fact that their context independent meanings need to be supplemented in context for them (...) to have semantic values relative to the context. Many philosophers and linguists think that there is a lot of contextual sensitivity in natural language that goes well beyond the pure indexicals and supplementives like ‘he’. Constructions/expressions that are good candidates for being contextually sensitive include: quantifiers, gradable adjectives including “predicates of personal taste”, modals, conditionals, possessives and relational expressions taking implicit arguments. It would appear that in none of these cases does the expression/construction in question have a context independent meaning that when placed in context suffices to secure a semantic value for the expression/construction in the context. In each case, some sort of supplementation is required to do this. Hence, all these expressions are supplementives in my sense. For a given supplementive, the question arises as to what the mechanism is for supplementing its conventional meanings in context so as to secure a semantic value for it in context. That is, what form does the supplementation take? The question also arises as to whether different supplementives require different kinds of supplementation. Let us call an account of what, in addition to its conventional meaning, secures a semantic value for a supplementive in context a metasemantics for that supplementive. So we can put our two questions thus: what is the proper metasemantics for a given supplementive; and do all supplementives have the same metasemantics? In the present work, I sketch the metasemantics I formulated for demonstratives in earlier work. Next, I briefly consider a number of other supplementives that I think the metasemantics I propose plausibly applies to and explain why I think that. Finally, I consider the prospects for extending the account to all supplementives. In so doing, I take up arguments due to Michael Glanzberg to the effect that supplementives are governed by two different metasemantics and attempt to respond to them. (shrink)

What sort of logic do we get if we adopt a supervaluational semantics for vagueness? As it turns out, the answer depends crucially on how the standard notion of validity as truth preservation is recasted. There are several ways of doing that within a supervaluational framework, the main alternative being between “global” construals (e.g., an argument is valid iff it preserves truth-under-all-precisifications) and “local” construals (an argument is valid iff, under all precisifications, it preserves truth). The former alternative is by (...) far more popular, but I argue in favor of the latter, for (i) it does not suffer from a number of serious objections, and (ii) it makes it possible to restore global validity as a defined notion. (shrink)

This article discusses the adequacy of Rawls’ theory of justice as a tool for racial justice. It is argued that critics like Charles W Mills fail to appreciate both the insights and limits of the Rawlsian framework. The article has two main parts spread out over several different sections. The first is concerned with whether the Rawlsian framework suffices to prevent racial injustice. It is argued that there are reasons to doubt whether it does. The second part is concerned with (...) whether a Rawlsian framework has the resources to rectify past racial injustice. It is argued that it has more resources to do this than Mills allows. This second part of the article centers on two Rawlsian ideas: ideal theory and the fair equality of opportunity principle. It is argued that ideal theory is essential for the kind of rectificatory work that Mills wants nonideal theory to do, and that where there is a socioeconomic legacy of past injustice, it is hard to see how FEO could be implemented if it did no rectificatory work, a result which means that there is less need to turn to nonideal theory at all. (shrink)

Many of those working on moral responsibility assume that "once blameworthy, always blameworthy." They believe that blameworthiness is like diamonds: it is forever. We argue that blameworthiness is not forever; rather, it can diminish through time. We begin by showing that the view that blameworthiness is forever is best understood as the claim that personal identity is sufficient for diachronic blameworthiness. We argue that this view should be rejected because it entails that blameworthiness for past action is completely divorced from (...) the distinctive psychological features of the person at the later time. This is because on none of the leading accounts of personal identity does identity require the preservation of any distinctive psychological features, but merely requires some form of continuity. The claim that blameworthiness is forever should therefore be rejected. We then sketch an account of blameworthiness over time, and consider two objections. (shrink)

I focus on three mereological principles: the Extensionality of Parthood (EP), the Uniqueness of Composition (UC), and the Extensionality of Composition (EC). These principles are not equivalent. Nonetheless, they are closely related (and often equated) as they all reflect the basic nominalistic dictum, No difference without a difference maker. And each one of them—individually or collectively—has been challenged on philosophical grounds. In the first part I argue that such challenges do not quite threaten EP insofar as they are either self-defeating (...) or unsupported. In the second part I argue that they hardly undermine the tenability of EC and UC as well. (shrink)

Following Kripke and Putnam, the received view of chemical kinds has been a microstructuralist one. To be a microstructuralist about chemical kinds is to think that membership in said kinds is conferred by microstructural properties. Recently, the received microstructuralist view has been elaborated and defended, but it has also been attacked on the basis of complexities, both chemical and ontological. Here, I look at which complexities really challenge the microstructuralist view; at how the view itself might be made more complicated (...) in order to accommodate such challenges; and finally, at what this increasingly complicated picture implies for our standard assessment of chemical kindhood—primarily, for the widespread assumption that chemical kinds in general are more neat and tidy than those messy biological ones. _1_ The Received View _2_ A Taxonomy of Chemical Kinds _3_ Atomic Number _4_ H2O, H3O+, OH−, and More _5_ Complicating the Microstructuralist Picture _6_ Concrete and Other Mixtures _7_ Macromolecules, Especially Proteins _8_ Abandoning Sameness of Elemental Composition _9_ Not So Different after All. (shrink)

Functional decomposition is an important goal in the life sciences, and is central to mechanistic explanation and explanatory reduction. A growing literature in philosophy of science, however, has challenged decomposition-based notions of explanation. ‘Holists’ posit that complex systems exhibit context-sensitivity, dynamic interaction, and network dependence, and that these properties undermine decomposition. They then infer from the failure of decomposition to the failure of mechanistic explanation and reduction. I argue that complexity, so construed, is only incompatible with one notion of decomposition, (...) which I call ‘atomism’, and not with decomposition writ large. Atomism posits that function ascriptions must be made to parts with minimal reference to the surrounding system. Complexity does indeed falsify atomism, but I contend that there is a weaker, ‘contextualist’ notion of decomposition that is fully compatible with the properties that holists cite. Contextualism suggests that the function of parts can shift with external context, and that interactions with other parts might help determine their context-appropriate functions. This still admits of functional decomposition within a given context. I will give examples based on the notion of oscillatory multiplexing in systems neuroscience. If contextualism is feasible, then holist inferences are faulty—one cannot infer from the presence of complexity to the failure of decomposition, mechanism, and reductionism. (shrink)

In her 2004 book Carol Gould addresses the fundamental issue of democratizing globalization, that is to say of finding ways to open transnational institutions and communities to democratic participation by those widely affected by their decisions. The book develops a framework for expanding participation in crossborder decisions, arguing for a broader understanding of human rights and introducing a new role for the ideas of care and solidarity at a distance. Reinterpreting the idea of universality to accommodate a multiplicity of cultural (...) perspectives, the author takes up a number of applied issues, including the persistence of racism, cultural rights, women's human rights, the democratic management of firms, the use of the Internet to enhance political participation, and the importance of empathy and genuine democracy in understanding terrorism and responding to it. Accessibly written with a minimum of technical jargon this is a major contribution to political philosophy. (shrink)

This is a creative-commons licensed guide. Its purpose is to provide students with an understanding of some ways in which they might contribute to philosophical conversation. It is also available for free use via my website.

Alison Bailey’s The Weight of Whiteness: A Feminist Engagement with Privilege, Race, and Ignorance examines how whiteness misshapes our humanity, measuring the weight of whiteness in terms of its costs and losses to collective humanity. People of color feel the weight of whiteness daily. The resistant habits of whiteness and its attendant privileges, however, make it difficult for white people to feel the damage. White people are more comfortable thinking about white supremacy in terms of what privilege does for (...) them, rather than feeling what it does to them. The first half of the book focuses on the overexposed side of white privilege, the side that works to make the invisible and intangible structures of power more visible and tangible. Bailey discusses the importance of understanding privileges intersectionally, the ignorance-preserving habits of “white talk,” and how privilege and ignorance circulate in educational settings. The second part invites white readers to explore the underexposed side of white dominance, the weightless side that they would rather not feel. The final chapters are powerfully autobiographical. Bailey engages readers with a deeply personal account of what it means to hold space with the painful weight of whiteness in her own life. She also offers a moving account of medicinal genealogies, which helps to engage the weight she inherits from her settler colonial ancestors. The book illustrates how the gravitational pull of white ignorance and comfort are stronger than the clean pain required for collective liberation. The stakes are high: Failure to hold the weight of whiteness ensures that white people will continue to blow the weight of historical trauma through communities of color. -/- All rights reserved. No portion of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical, photocopying, recording or otherwise without the prior written permission of the publisher. -/- -/- . (shrink)

This book aims to develop certain aspects of Gottlob Frege’s theory of meaning, especially those relevant to intensional logic. It offers a new interpretation of the nature of senses, and attempts to devise a logical calculus for the theory of sense and reference that captures as closely as possible the views of the historical Frege. (The approach is contrasted with the less historically-minded Logic of Sense and Denotation of Alonzo Church.) Comparisons of Frege’s theory with those of Russell and others (...) are given. It is in the end shown that developing Frege’s theory in these ways reveals serious problems hitherto largely unnoticed, including those possibly rendering a Fregean intensional logic inconsistent even if his naïve class theory is excluded. (shrink)

In this paper I offer a new interpretation of Stoic ontology. I aim to explain the nature of, and relations between, (i) the fundamental items of their physics, bodies; (ii) the incorporeal items about which they theorized no less; and (iii) universals, towards which the Stoic attitude seems to be a bizarre mixture of realism and anti-realism. In the first half of the paper I provide a new model to explain the relationship between those items in (i) and (ii). This (...) model clears up several problems in Stoicism and gives a precise answer to the question of how bodies and incorporeals differ in their mode of being. The second half of the paper considers the vexed issue of the status of those items in (iii), Stoic universals. (shrink)

Because factory-farmed meat production inflicts gratuitous suffering upon animals and wreaks havoc on the environment, there are morally compelling reasons to become vegetarian. Yet industrial plant agriculture causes the death of many field animals, and this leads some to question whether consumers ought to get some of their protein from certain kinds of non factory-farmed meat. Donald Bruckner, for instance, boldly argues that the harm principle implies an obligation to collect and consume roadkill and that strict vegetarianism is thus immoral. (...) But this argument works only if the following claims are true: all humans have access to roadkill, roadkill would go to waste if those who happen upon it don’t themselves consume it, it’s impossible to harvest vegetables without killing animals, the animals who are killed in plant production are all-things-considered harmed by crop farming, and the best arguments for vegetarianism all endorse the harm principle. As I will argue in this paper, each claim is deeply problematic. Consequently, in most cases, humans ought to strictly eat plants and save the roadkill for cats. (shrink)

Leuridan (2011) questions whether mechanisms can really replace laws at the heart of our thinking about science. In doing so, he enters a long-standing discussion about the relationship between the mech-anistic structures evident in the theories of contemporary biology and the laws of nature privileged especially in traditional empiricist traditions of the philosophy of science (see e.g. Wimsatt 1974; Bechtel and Abrahamsen 2005; Bogen 2005; Darden 2006; Glennan 1996; MDC 2000; Schaffner 1993; Tabery 2003; Weber 2005). In our view, Leuridan (...) misconstrues this discussion. His weak positive claim that mechanistic sciences appeal to generalizations is true but uninteresting. His stronger claim, that all causal claims require laws, is unsupported by his arguments. Though we proceed by criticizing Leuridan’s arguments, our greater purpose is to embellish his arguments in order to show how thinking about mechanisms enriches and transforms old philosophical debates about laws in biology and provides new insights into how generalizations afford prediction, explanation and control. (shrink)

There is a New Idea in epistemology. It goes by the name of ‘knowledge first,’ and it is particularly associated with Timothy Williamson’s book Knowledge and Its Limits. In slogan form, to put knowledge first is to treat knowledge as basic or fundamental, and to explain other states—belief, justification, maybe even content itself—in terms of knowledge, instead of vice versa. The idea has proven enormously interesting, and equally controversial. But deep foundational questions about its actual content remain relatively unexplored. We (...) think that a wide variety of views travel under the banner of ‘knowledge first’ (and that the slogan doesn’t help much with differentiating them). Furthermore, we think it is far from straightforward to draw connections between certain of these views; they are more independent than they are often assumed to be. Our project here is exploratory and clarificatory. We mean to tease apart various ‘knowledge first’ claims, and explore what connections they do or do not have with one another. Our taxonomy is offered in §2, and connections are explored in §3. The result, we hope, will be a clearer understanding of just what the knowledge first theses are. We conclude, in §4, with some brief suggestions as to how we think the various theses might be evaluated. (shrink)

Does the content of a physically dangerous job affect the moral permissibility of hiring for that job? To what extent may employers consider costs in choosing workplace safety measures? Drawing on Kantian ethical theory, this article defends two strong ethical standards of workplace safety. First, the content of a hazardous job does indeed affect the moral permissibility of offering it. Unless employees need hazard pay to meet basic needs, it is permissible to offer a dangerous job only if prospective employees (...) have a reason other than hazard pay to choose this job instead of safer alternatives. Second, employers typically cannot justify omitting expensive safety measures by paying employees more, even if employees prefer higher pay to greater safety. Employers offering dangerous jobs must meet these two standards to avoid treating their employees merely as means. (shrink)

I argue that Universalism (the thesis that mereological composition is unrestricted) entails Extensionalism (the thesis that sameness of composition is sufficient for identity) as long as the parthood relation is transitive and satisfies the Weak Supplementation principle (to the effect that whenever a thing has a proper part, it has another part disjoint from the first).

In this article, we identify three key design dimensions along which cryptocurrencies differ -- privacy, censorship-resistance, and consensus procedure. Each raises important normative issues. Our discussion uncovers new ways to approach the question of whether Bitcoin or other cryptocurrencies should be used as money, and new avenues for developing a positive answer to that question. A guiding theme is that progress here requires a mixed approach that integrates philosophical tools with the purely technical results of disciplines like computer science and (...) economics. Note: this article is the second entry within a two-part sequence on the Philosophy, Politics, and Economics of Cryptocurrency. (shrink)

Philosophers have long been fascinated by the stream of consciousness––thoughts, images, and bits of inner speech that dance across the inner stage. Yet for centuries, such “mind-wandering” was deemed private and thus resistant to empirical investigation. Recent developments in psychology and neuroscience have reinvigorated scientific interest in the stream of thought, leading some researchers to dub this “the era of the wandering mind”. Despite this flurry of progress, scientists have stressed that mind-wandering research requires firmer philosophical foundations. The time is (...) therefore ripe for the philosophy of mind-wandering. Our review begins with a foundational question: what is mind-wandering? We then investigate the significance of mind-wandering for general philosophical topics, namely mental action, introspection, and the norms of thinking and attention. (shrink)

Aristotle’s typical procedure is to identify something's four causes. Intentional action has typically been treated as an exception: most think that Aristotle has the standard causalist account, according to which an intentional action is a bodily movement efficiently caused by an attitude of the appropriate sort. I show that action is not an exception to Aristotle’s typical procedure: he has the resources to specify four causes of action, and thus to articulate a powerful theory of action unlike any other on (...) offer. (shrink)

Neo-Humean instrumentalist theories of reasons for acting have been presented with a dilemma: either they are normatively trivial and, hence, inadequate as a normative theory or they covertly commit themselves to a noninstrumentalist normative principle. The claimed result is that no purely instrumentalist theory of reasons for acting can be normatively adequate. This dilemma dissolves when we understand what question neo-Humean instrumentalists are addressing. The dilemma presupposes that neo-Humeans are attempting to address the question of how to act, 'simpliciter'. Instead, (...) they are evaluating actions from the agent's normative perspective. (shrink)

Cognitive penetration of perception is the idea that what we see is influenced by such states as beliefs, expectations, and so on. A perceptual belief that results from cognitive penetration may be less justified than a nonpenetrated one. Inferentialism is a kind of internalist view that tries to account for this by claiming that some experiences are epistemically evaluable, on the basis of why the perceiver has that experience, and the familiar canons of good inference provide the appropriate standards by (...) which experiences are evaluated. I examine recent defenses of inferentialism by Susanna Siegel, Peter Markie, and Matthew McGrath and argue that the prospects for inferentialism are dim. (shrink)