l argue that, contra Chalmers,a skeptical scenario involving deception is a genuine possibility,even if he is correct that simulations are real. I call this new skeptical position “Illusory World Skepticism.” Illusory World Skepticism draws from the simulation argument,together with work in physics,astrobiology, and AI,to argue that we may indeed be in an illusory world—a universe scale simulation orchestrated by a deceptive AI—the technophilosopher’s ultimate evil demon. In Section One I urge that Illusory World Skepticism is a bone fide skeptical possibility. (...) In Section Two, I explore features of quantum computation. Then, in Sections Three and Four, I draw from the discussion of quantum computation and assume that the simulation argument is correct,applying considerations from the fields of astrobiology and AI safety to illustrate that illusory world skepticism constitutes what I call “a serious epistemic threat”, a scenario that cannot be dismissed as requiring that knowledge is certainty or which seems to just depict a remote, fictional situation. (shrink)

In this paper, I look at Susan Stebbing’s articles and reviews that critically engage logical positivism. These appeared before the publication of A.J. Ayer’s Language, Truth and Logic and helped shape the early British reception of logical positivism. I highlight Stebbing’s adoption of G.E. Moore’s tripartite distinction between knowing a proposition, understanding it, and giving an analysis of it and, in light of this distinction, her focus on whether the principle of verifiability can ground a plausible account of communication. (...) Stebbing thinks not, and I reconstruct her reasons, as well as her own account of communication. In doing this, I relate her criticisms to her rejection of methodological solipsism and her dissatisfaction with the logical positivist treatment of statements about other minds and the past. I also argue that Stebbing’s work provides a bridge to later criticisms of logical positivism from ordinary language philosophers. Foregrounding Stebbing’s engagement with logical positivism, especially her focus on communication, paints a fuller picture of how the logical positivists came to be part of analytic philosophy despite having different concerns than many of the British philosophers engaging their work. (shrink)

When Otto Neurath went into exile in 1934, first to Holland and then to England, he succeeded in establishing important new connections within the context of the international Unity of Science movement, for which he was largely responsible. A notable example was the British philosopher L. Susan Stebbing, who supported his pragmatic ideas on the “humanization” of knowledge. Both Neurath and Stebbing were looking for ways to apply modern logic and linguistic analysis, not only to the transfer of information (...) in science and teaching, but above all in publication projects for the “common reader.” In 1941, Stebbing became the first president of the Isotype Institute in Oxford, which Neurath directed until 1945. Soon after ISOTYPE was founded, long-term relations began between it and the book-packaging company Adprint managed by German-speaking emigrés in London, as well as its successors and British clients. A technically and organizationally sophisticated process for the production of illustrated non-fiction books was gradually established. The “picture-text style” developed by Neurath and epitomized in Modern Man in the Making was applied to non-fiction books and series with “integrated layouts,” then professionalized and successively transformed into a production model for illustrated books which enabled scientific information to be prepared for the mass market and the “common reader” – in the service of a modern, democratic society. (shrink)

During the first quarter of the twentieth century, the French philosopher Henri Bergson became an international celebrity, profoundly influencing contemporary intellectual and artistic currents. While Bergsonism was fashionable, L. Susan Stebbing, Bertrand Russell, Moritz Schlick, and Rudolf Carnap launched different critical attacks against some of Bergson’s views. This book examines this series of critical responses to Bergsonism early in the history of analytic philosophy. Analytic criticisms of Bergsonism were influenced by William James, who saw Bergson as an ‘anti-intellectualist’ ally (...) of American Pragmatism, and Max Scheler, who saw him as a prophet of Lebensphilosophie. Some of the main analytic objections to Bergson are answered in the work of Karin Costelloe-Stephen. Analytic anti-Bergsonism accompanied the earlier refutations of idealism by Russell and Moore, and later influenced the Vienna Circle’s critique of metaphysics. It eventually contributed to the formation of the view that ‘analytic’ philosophy is divided from its ‘continental’ counterpart. (shrink)

Feminism and Tradition in Aesthetics takes a fresh look at the history of aesthetics and at current debates within the philosophy of art by exploring the ways in which gender informs notions of art and creativity, evaluation and interpretation, and concepts of aesthetic value. Multiple intellectual traditions have formed this field, and the discussions herein range from consideration of eighteenth century legacies of ideas about taste, beauty, and sublimity to debates about the relevance of postmodern analyses for feminist aesthetics. Forward (...) by Arthur C. Danto, 20 authors include Paul Mattick, Jr., Caroline Korsmeyer, Timothy Gould, Christine Battersby, Mary Devereaux, bell hooks, REnee Lorraine, Trinh T. Minh-ha, Elizabeth Ann Dobie, Adrian Piper, Anita Silvers, Susan Feagin, Mary D. Garrard, Ellen Handler Spitz, Noel Carroll, Joanne Waugh, Joseph Margolis, Rita Felski, and Hilde Hein, as well as Peg Brand's essay, "Revising the Aesthetic-Nonaesthetic Distinction: The Aesthetic Value of Activist Art.". (shrink)

Why is it that we respond emotionally to plays, movies, and novels and feel moved by characters and situations that we know do not exist? This question, which constitutes the kernel of the debate on »the paradox of fiction«, speaks to the perennial themes of philosophy, and remains of interest to this day. But does this question entail a paradox? A significant group of analytic philosophers have indeed thought so. Since the publication of Colin Radford's celebrated paper »How Can We (...) Be Moved by the Fate of Anna Karenina?« (1975), the number of proposals to solve, explain, reformulate, dismiss or even revitalize this apparent paradox has continued to proliferate. In line with recent developments in the philosophy of emotion, in this paper I will argue against the sustainability of the paradox, claiming that the only reasonable way to continue our discussions about it consists in using it as a heuristic tool to shed light on problems regarding our involvement with fiction. Against this background, I will then focus on one of the problems related to how our emotional responses to fiction contribute to our appreciation of it. The paper is divided into three main sections. The first section shows the parallel evolution of the paradox of fiction and the analytic philosophy of emotion. Here I claim that, although the paradox is epistemically flawed, since one of its premises is rooted in a limited view on the emotions typical of early cognitiv-ism, the discussions it provokes are still epistemically useful. As Robert Stecker (2011, 295), among others, has pointed out, the paradox was formulated during the heyday of cognitive theories of the emotions in which emotion necessarily requires belief. Today, however, only few authors would endorse this premise. If emotion does not always require belief (as the majority of authors in the contemporary debate admit), let alone belief about the existence of the object towards which it is directed, then there is no reason to speak of a paradox. From this first conclusion, however, it does not follow that the paradox is completely without use from the epistemic point of view. A glimpse at the topics touched on during the discussions about how to solve, reformulate, or negate the paradox reveals their value in shedding light on the interrelation between emotion and fiction. The second section elaborates a phenomenologically inspired cognitive account of the emotions by focusing on their cognitive bases, their influence on Emotion in the Appreciation of Fiction 205 cognitions, and their cognitive function. In this model, emotions are responsible for indicating values, for showing what matters to us, and for being appropriate to their objects. My claim is that this view applies not only to reality, but also to our involvement with fiction. In the final section I draw on this account to focus on one kind of appreciation of fiction which necessarily requires our emotional involvement. Following an idea put forward by Susan Feagin (1996, 1), I employ the concept of »appre-ciation« to refer to a set of abilities exercised with the aim of extracting value from the work. There is a long tradition in aesthetics that condemns any focus on the emotions in the appreciation of art and fiction, and defends the necessity of aesthetic appreciation without emotional influence. To refer to this negative attitude towards the emotions, I will borrow an expression coined by Susan Feagin (2013, 636), who refers to »the intellectualized view of appreciation«. Against this widespread view, I will argue that some aspects of the fiction can only be appreciated with the help of our emotions. The cognitive approach developed in the previous section can explain how the emotions might in fact play a significant role in the appreciation of art and fiction. Attention will be paid to three activities involved in appreciation, for all of which emotion is crucial: processing relevant information about the fictional world, understanding aspects of it, and becoming acquainted with the values it presents. My aim here is to argue that there are particular aspects of the fictional world that can only be appreciated if recipients have the appropriate emotions. (shrink)

In 2006, David Carrier (Carrier, 2006, Museum Skepticism: A History of the Display of Art in Public Galleries. Durham: Duke University Press.) coined the term ‘museum skepticism’ to describe the idea that moving artworks into museum settings strips them of essential facets of their meaning; among art historians, this is better known as ‘decontextualization’, ‘denaturing’, or ‘museumization’. Although they do not usually name it directly, many contemporary debates in the philosophy of art are informed by an inclination towards museum skepticism, (...) from work on aesthetic cognitivism (Feagin, Susan, 1995, “Paintings and their places” Australasian Journal of Philosophy 73.2: 260-8.) and contextualism (Danto, Arthur C., 1988, “Artifact and Art”, in ART/ARTIFACT: African Art in Anthropological Collections. Exhibition Catalogue. New York: Center for African Art and Prestel Verlag, 18-32.) to cultural appropriation (Eaton, A. W. and Gaskell, Ivan, 2009, “Do subaltern artifacts belong in art museums?,” The Ethics of Cultural Appropriation, ed. James O. Young and Conrad Brunk, Oxford and Malden, Mass.: Wiley-Blackwell, 235-67), street art (Baldini, Andrea, 2016, “Street Art: A Reply to Riggle” Journal of Aesthetics and Art Criticism 74.2: 187-91), and the value of authenticity (Korsmeyer, Carolyn, 2016, “Real Old Things” British Journal of Aesthetics, 56.3: 219-31). The very first museum skeptic, however, was Antoine Chrysostôme Quatremère de Quincy (1755-1849). (shrink)

Experiencing tragedy may broaden our ability to understand the suffering of others, and further our ability to endure future suffering. In the work of stoic philosopher Epictetus, he proports one should practice premeditatio malorum, preparing for the tragedies to come so that when they do occur one will be less disturbed. Through the stories of those that have survived tragedy and great suffering though, we can grow to understand the choices people make that lead to suffering are often the lesser (...) of two evils. When man sees a reason to suffer, he will choose to suffer, it is possible to understand and explain what experiencing suffering causes. The writings of philosophical professor Michael Brady, Susan Feagin, and others explain that the virtues of suffering are enough so we should not avoid the experience of it. We study history so that we may avoid repeating it, and just the same we experience the suffering that comes naturally throughout life so that we may avoid repeating it. (shrink)

Die Moralphilosophie des 20. und 21. Jahrhunderts hat mit Konsequentialismus, Deontologie, Kontraktualismus und Tugendethik nicht nur höchst einflussreiche Theorieparadigmen produktiv weiterentwickelt, sondern auch eine Reihe wichtiger neuer Probleme aufgeworfen. Der vorliegende Band versammelt zentrale Beiträge der analytischen Moralphilosophie, u. a. von David Gauthier, Shelly Kagan, Frances Kamm, Thomas Nagel, Michael Slote, Christine Swanton und Susan Wolf, die für ein Verständnis gegenwärtiger Diskussionen in der normativen Ethik unabdingbar sind. -/- Inhaltsverzeichnis: Vorwort Einleitung: Analytische Moralphilosophie der Gegenwart -/- 1. Konsequentialismus Shelly (...) Kagan: Ein Plädoyer gegen die Alltagsmoral Peter Railton: Entfremdung, Konsequentialismus und die Anforderungen der Moral -/- 2. Deontologie Thomas Nagel: Ethik William David Ross: Was macht richtige Handlungen richtig? -/- 3. Kontraktualismus David Gauthier: Warum Kontraktualismus? Thomas Scanlon: Die Struktur des Kontraktualismus -/- 4. Tugendethik Christine Swanton: Eine tugendethische Theorie des richtigen Handelns Michael Slote: Akteursbasierte Tugendethik -/- 5. Moralische Aggregation John Taurek: Zählt die Anzahl? Frances M. Kamm: Aggregation und zwei moralphilosophische Methoden -/- 6. Das Prinzip der Doppelwirkung Jonathan Bennett: Vorhergesehene Nebenwirkungen vs. beabsichtigte Folgen Ralph Wedgwood: Zur Verteidigung der Lehre von der Doppelwirkung -/- 7. Moralische Rechte H. L. A. Hart: Gibt es natürliche Rechte? Joseph Raz: Über die Beschaffenheit von Rechten -/- 8. Moralischer Zufall Thomas Nagel: Moralischer Zufall Susan Wolf: Die Moral des moralischen Zufalls. (shrink)

TRANSPORTE DE GAMETAS, FERTILIZAÇÃO E SEGMENTAÇÃO -/- • _____OBJETIVO -/- O entendimento do desenvolvimento embrionário nos estágios iniciais, desde a deposição dos espermatozoides na fêmea, passando pela fertilização deste no ovócito e na formação do zigoto, é de suma importância para diferenciar especialistas em reprodução e manejo reprodutivo no mercado de trabalho e, também, durante a vida acadêmica. Compreender os processos que levam à formação do zigoto na fêmea é essencial para avaliar a capacidade reprodutiva dos animais e, mediante técnicas, (...) avaliar o trato reprodutivo da fêmea e o desenvolvimento do embrião até a formação do feto e, por fim, em um novo animal sadio na propriedade. Com esse trabalho, o estudante de veterinária ou zootecnia, que deseja se aprofundar na fisiologia da reprodução animal, identificará os mecanismos que são envolvidos no transporte dos gametas, bem como os processos que estes últimos devem completar para alcançar a fertilização e para desencadear as divisões iniciais do embrião. -/- • _____INTRODUÇÃO -/- A fertilização ou fecundação é o processo pelo qual os gametas masculino (espermatozoide) e feminino (ovócito) se fundem para gerar um novo indivíduo. Seu êxito depende da culminação adequada dos diferentes processos que devem sofrer os gametas durante sua maduração e percurso; do transporte oportuno destes no trato reprodutivo da fêmea, assim como de uma série de adaptações dos órgãos genitais internos da mãe. A segmentação refere-se às primeiras divisões celulares do embrião. -/- • _____TRANSPORTE DO OVÓCITO -/- O ovócito que é liberado na ovulação, e que se encontra coberto pelas células do cumulus (figura 1), é capturado pela fímbria do infundíbulo ao aderir aos cílios. Esse processo é altamente eficaz, inclusive em espécies onde os ovários possuem várias formações globosas, por exemplo nas porcas, onde os ovidutos capturam entre 95 e 100% dos ovócitos que são ovulados. As contrações das camadas musculares do oviduto e o movimento intenso dos cílios da mucosa faz com que as secreções fluam em direção ao útero, transportando assim o complexo cumulus-ovócito. Esse transporte é relativamente rápido até alcançar a junção da ampola com o istmo (que é considerado o local de fertilização do espermatozoide e ovócito) a partir do qual se torna lento. Devido a fêmea estar em estro, o processo está sob controle endócrino, isto é, controle hormonal através do estradiol. Nas fêmeas domésticas, ao contrário das mulheres, o transporte ao longo do oviduto é extremamente eficiente, pois os embriões passam para o útero sem dificuldade, de modo que gestações ectópicas (tubárias ou em cavidade) são quase inexistentes. A égua, frequentemente, retém por muito tempo os ovócitos não fertilizados no oviduto, provavelmente devido a não secreção de substâncias (como a prostaglandina E) que poderiam favorecer sua passagem, como se propõe que aconteça com os embriões. A figura 2 apresenta um ovócito com suas respectivas estruturas. Figura 1: ovócitos de uma vaca madurados in vitro. Nota-se as células do cumulus que os recobre. -/- Figura 2: estruturas do ovócito de uma ovelha que se encontra na etapa de ovócito secundário, depois da ovulação. Elaborado pelo autor. • _____TRANSPORTE ESPERMÁTICO -/- Para que os espermatozoides sejam capazes de fertilizar o ovócito, deverão sofrer uma série de mudanças bioquímicas e morfológicas ao longo de sua passagem pelo aparelho reprodutor tanto masculino como feminino. Uma vez produzidos na parede do túbulo seminífero, os espermatozoides são liberados em direção ao lúmen tubular e transportados passivamente para uma estrutura ramificada conhecida como rede testicular (rete testis). Dessa rede são conduzidos em direção ao epidídimo passando através de 10 a 20 ductos eferentes localizados no polo superior do testículo. O epidídimo é dividido em três seções denominadas cabeça, corpo e cauda; é constituído por um só ducto longo e tortuoso que continua com o canal deferente. Ao final desemboca nas ampolas seminais, no ducto ejaculatório e na uretra. As funções do epidídimo são as de maduração, transporte e armazenamento dos espermatozoides. O transporte através do epidídimo é lento, aproximadamente de 10 dias em touros, e segue sendo passivo. Os espermatozoides tomados da cabeça do epidídimo são ainda imaturos e incapazes de fertilizar, enquanto os armazenados na cauda são completamente maduros. Durante o trânsito pelo epidídimo os espermatozoides adquirem motilidade e o potencial para fertilizar, o acrossomo é remodelado e a gota citoplasmática migra para o flagelo e é liberada. Quando um macho ejacula com muita frequência, é possível observar espermatozoides com gota citoplasmática no sêmen, já que não há tempo suficiente para que completem sua maduração. Os espermatozoides são expulsados fora do organismo durante a cópula, na masturbação ou em emissões espontâneas. Na ejaculação, os espermatozoides que se encontram suspensos nos fluidos do testículo e do epidídimo, misturam-se ao chegar na uretra com as secreções das glândulas acessórias para formar o sêmen. Essas secreções denominadas plasma seminal, proporcionam substâncias para manter o metabolismo energético das células espermáticas, e integram suas membranas elementos que impedem uma capacitação prematura. Durante a cópula, o sêmen é depositado na vagina ou no útero, variando entre as espécies (tabela 1). Na monta natural, geralmente, o serviço ocorre no momento propício, já que está definido pela fase do ciclo estral em que a fêmea é receptiva ao macho. No entanto, na inseminação artificial, é o macho que deverá determinar o momento ideal, e para isso é importante considerar a vida média dos gametas, ao qual é muito curta no caso dos ovócitos (tabela 1). -/- Tabela 1: local de depósito do sêmen, volume da ejaculação e vida média dos gametas. Espécie Local de deposição Volume (ml) Velocidade de ejaculação Vida média do ovócito Vida média do espermatozoide Bovinos Intravaginal 2 1 – 3 seg 8 h 30 – 48 h Caninos Intravaginal 2 – 30 (10 média) 6 – 45 min 48 – 72 h 9 – 11 d Equinos Intrauterina 50 – 200 20 – 60 seg 6 – 8 h 72 – 120 h Humanos Intravaginal 3 - - 5 – 6 d Ovinos Intravaginal 1 1 – 2 seg 16 – 24 h 30 – 48 h Suínos Intrauterina 200 – 400 5 – 20 min 8 – 10 h 24 – 48 h Onde d = dias; h = horas. A vida fértil do ovócito é muito curta, portanto, o momento do serviço é de grande importância para obter altos índices de fertilização. -/- Independentemente do local em que os espermatozoides sejam depositados no aparelho reprodutor feminino, serão expostos às secreções genitais e sofrem uma série de mudanças em seu trajeto até o local de fertilização antes de penetrar no ovócito. Nas espécies em que o sêmen é depositado na parte cranial da vagina, uma parte do mesmo penetra através da cérvix, enquanto outra parte é eliminada do aparelho genital da fêmea, em pouco tempo, através do fluxo retrógrado. O meio vaginal não é adequado e imobiliza os espermatozoides em pouco tempo, pelo qual deverão entrar no útero onde o ambiente é mais propício. O transporte espermático na fêmea é o resultado da alta contratilidade, do movimento ciliar e o fluido do aparelho genital durante o estro, ao qual está sob controle endócrino e do sistema nervoso. Esse transporte é favorecido pelas características especiais do muco estral, cujas moléculas formam uma espécie de canais que facilitam a passagem dos espermatozoides. Pelo contrário, durante a fase lútea seu transporte é dificultado. Além do meio vaginal, a cérvix também atua como barreira natural para limitar a passagem dos espermatozoides, diminuindo assim a possibilidade de polispermia. Funciona, também, como um filtro que seleciona os espermatozoides aptos dos que não o são, uma vez que somente os primeiros possuem uma motilidade vigorosa que lhes permite passar pelo muco altamente hidratado. Na vaca a cérvix é considerada como um reservatório espermático. Quando atravessam a cérvix, os espermatozoides seguem sua deslocação tanto por movimento próprio como pelas contrações uterinas e tubárias. Nas espécies em que o local de depósito do sêmen do macho na fêmea é intrauterino, como equinos, a principal barreira que os espermatozoides enfrentam é a união ou junção útero-tubárica. A união entre o útero e o oviduto (istmo do oviduto) serve como reservatório funcional dos espermatozoides nas espécies domésticas. Poucos minutos depois da cópula, é possível encontrar alguns espermatozoides no oviduto, que é conhecido como fase de transporte rápido. No entanto, esses espermato-zoides não são os que participam do processo de fertilização e podem apresentar certas anormalidades. Existe um segundo tipo de transporte denominado fase sustentada, a qual consiste na migração prolongada dos espermatozoides em direção as partes mais craniais do aparelho genital feminino, que conduzem à colonização do reservatório funcional e na liberação gradual dos espermatozoides dos reservatórios espermáticos, incluindo este último. O reservatório do istmo fornece aos espermatozoides um ambiente propício, protegendo-os contra a fagocitose, prolongando assim a sua viabilidade. Aqui os esper-matozoides permanecem aderidos a superfície das células ciliadas do epitélio até a finalização de sua capacitação, depois da qual são liberados quando alteram seu padrão de motilidade flagelada, fenômeno conhecido como hipermotilidade, e migram em ondas em direção ao local da fertilização. Dos milhões de espermatozoides ejaculados, somente alguns milhares alcançarão o istmo do oviduto e um número sumamente pequeno será encontrado nas imediações do ovócito no momento da fertilização. -/- • _____CAPACITAÇÃO ESPERMÁTICA E REAÇÃO ACROSSÔMICA -/- A capacitação é um processo gradual e essencial para a fertilização. Os espermato-zoides devem passar por um dado tempo de “incubação” no aparelho genital da fêmea e sofrer uma série de mudanças antes de serem capazes de fecundar o ovócito. A capacita-ção dos espermatozoides começa quando eles entram em contato com as secreções do aparelho genital da fêmea e termina no istmo do oviduto. Durante esse percurso a superfície da cabeça do espermatozoide se modifica já que algumas moléculas como o colesterol são removidas da membrana plasmática, aumentando sua fluidez e alterando suas propriedades bioquímicas. Entre outras coisas, essa reorganização dos lipídios facilita a entrada de cálcio extracelular pelos canais iônicos e ocasiona a desestabilização da membrana, tornando-a mais fusogênica. Também são eliminados outros fatores (conhecidos genericamente como fatores descapacitantes) que expõem receptores membranais indispensáveis para a realização da união entre o espermatozoide e o ovócito durante a fertilização. Os espermatozoides capacitados apresentam um padrão de hipermotilidade e uma maior atividade metabólica, características que devem obter para que sejam capazes de penetrar as camadas do ovócito. A capacitação é necessária para que ocorra a reação acrossômica. A reação acrossomal ou acrossômica (RA) é um fenômeno de exocitose que é desencadeada pela ligação entre as proteínas e receptores localizados na membrana do espermatozoide e a zona pelúcida do ovócito (figura 3). Envolve a fusão da membrana plasmática do espermatozoide com a membrana externa de seu acrossomo; formando, assim, pequenas vesículas, cujo conteúdo de enzimas hidrolíticas, como a hialuronidase e a acrosina, é liberado em direção ao seu exterior, facilitando a penetração da zona pelúcida. A adesão do espermatozoide à zona pelúcida é específica da espécie e depende de glicoproteínas presentes na membrana dos ovócitos maduros; a cabeça do espermatozoide se une com essas glicoproteínas mediante receptores específicos e atravessam em direção oblíqua a zona pelúcida até chegar ao espaço perivitelino. Nos mamíferos, particularmente em roedores e nos humanos, algumas dessas glicoproteínas são conhecidas como ZP1, ZP2 e ZP3. Pensa-se que a união da membrana espermática a esta última é o que desencadeia a reação acrossomal. Posteriormente, as vilosidades do ovócito entram em contato com o espermatozoide e a membrana presente na secreção equatorial da cabeça do espermatozoide, que tem proteínas fusogênicas específicas, une-se a membrana plasmática do ovócito, fusionando-se e permitindo a entrada do núcleo espermático ao citoplasma (figura 4). A capacitação dos espermatozoides é fundamental para o êxito da fertilização, uma vez que apenas os aptos estarão perfeitos e íntegros para que a união e percepção das glicoproteínas presentes nos mesmos possam ocorrer de forma ideal para a penetração deste no ovócito, fertilizá-lo e formar um zigoto. Figura 3: estrutura do espermatozoide. Nota: a membrana é acrossomal e não acrossonal. Elaborado pelo autor. -/- Figura 4: eventos que ocorrem durante a fertilização. A – depois de passar através das células do cumulus, o espermatozoide entra em contato com a zona pelúcida, onde receptores da membrana plasmática reconhecem as proteínas da zona pelúcida; B – é desencadeada, então, a reação acrossomal; C – para que o espermatozoide penetre na zona pelúcida; D – ao atravessar a zona pelúcida e entrar no espaço perivitelino, a cabeça do espermatozoide entra em contato com a membrana vitelina; ambas membranas se fusionam graças ao reconhecimento de proteínas fusogênicas que estão no segmento equatorial. E – ocorre, então, que o núcleo do espermatozoide penetra no citoplasma do ovócito; uma das consequências da fusão da membrana com a cabeça do espermatozoide é a reação cortical, em que os grânulos corticais do ovócito liberam seu conteúdo em direção ao espaço perivitelino, o que resulta na alteração da estrutura da zona pelúcida e da membrana vitelina para bloquear a polispermia. Elaborado pelo autor. • _____CONSEQUÊNCIAS DA PENETRAÇÃO -/- Bloqueio da polispermia -/- A fusão das membranas dos gametas durante a penetração permite a entrada da fosfolipase C zeta (PLCζ) – fator solúvel que provém do espermatozoide – que desencadeia liberação e oscilações de Ca2+ no retículo endoplasmático. Isso, por sua vez, provoca a migração e fusão dos grânulos corticais, com a consequente liberação de enzimas, que mudam tanto a estrutura da zona pelúcida (por exemplo a inativação de ZP3), como a da membrana vitelina. Desse modo, impede-se que outros espermatozoides as penetrem, evitando assim a polispermia (figura 5). -/- Figura 5: os grânulos corticais que encontram-se na periferia do citoplasma, debaixo da superfície da membrana do ovócito, migram e fusionam-se sobre a mesma, liberando seu conteúdo no espaço perivitelino imediatamente depois da penetração do espermatozoide. A – como conse-quência, tanto a membrana vitelina como a zona pelúcida são modificadas, impedindo a entrada de mais espermatozoides, o que evita a polispermia. B – o ovócito retoma, então, sua segunda divisão meiótica, que ocasiona a expulsão do segundo corpúsculo polar, e na formação dos pronúcleos feminino e masculino. C – continuando, os pronúcleos migram, suas membranas se dissolvem e os cromossomos de ambos se condensam e se unem. Completa-se, assim, a singamia e forma-se, então, o zigoto. Elaborado pelo autor baseado nos livros de embriologia e fisiologia da reprodução conforme vida bibliografia. -/- Ativação do ovócito e formação de pronúcleos -/- Na maioria das fêmeas domésticas, com exceção da cadela, o ovócito encontra-se suspenso na metáfase II da segunda meiose no momento da ovulação. A entrada da PLCζ do espermatozoide no citoplasma do ovócito, e a consequente liberação de Ca2+, faz com que o ovócito se ative, terminando a segunda divisão meiótica e expulse o segundo corpo polar. Posteriormente, o material nuclear do ovócito se reorganiza para formar o pronú-cleo feminino. Entretanto, a membrana nuclear do espermatozoide se dissolve, a cromatina descondensa-se, as protaminas são substituídas por histonas, e se forma uma nova membrana nuclear, dando lugar ao pronúcleo masculino. -/- Singamia -/- Uma vez que os pronúcleos feminino e masculino são formados, migram para o centro do ovócito, aproximam-se, suas membranas se dispersam e os cromossomos paternos e maternos se associam, com o qual recupera a condição diploide e dá origem ao zigoto (figura 5). -/- • _____DESENVOLVIMENTO EMBRIONÁRIO -/- Poucas horas após a fertilização ocorre a primeira divisão do zigoto em duas, depois em 4, 8, 16 e 32 células, denominadas blastômeros. Essas divisões mitóticas são conhecidas como divisões de segmentação ou clivagem (figura 6), uma vez que são realizadas sem aumento do citoplasma, de modo que com cada divisão os blastômeros se tornam menores. A partir das 16 células o embrião se chama mórula, e é visto como uma massa celular compacta. A compactação deve-se a informação de proteínas de ligação entre os blastômeros. O embrião acumula líquido em seu interior, formando uma cavidade denominada blastocele. Esse processo é conhecido como blastulação; o embrião, assim, passa a ser chamado de blastocisto. Nessa etapa é possível diferenciar duas populações de células embrionárias: a massa celular interna, embrioblasto ou botão embrionário (que dará origem ao embrião), e a massa celular externa, células superficiais ou trofoblasto, do qual se originam a maioria das membranas fetais. Ao continuar a multiplicação das células e a acumulação de líquido, o blastocisto aumenta de tamanho, convertendo-se em blastocisto expandido. A zona pelúcida torna-se mais fina e, finalmente, o embrião eclode; isto é, o embrião é liberado da zona pelúcida. -/- • _____FERTILIZAÇÕES ATÍPICAS -/- Polispermia -/- É a penetração de dois ou mais espermatozoides no óvulo. Esta condição é letal nos mamíferos, já que o número cromossômico desse zigoto é maior que 2n, o envelheci-mento do ovócito da porca, como consequência do serviço tardio, favorece a apresentação da polispermia, por isso, é comum ver números de nascimentos de média de 10 a 12 leitões por parição nessa espécie. Nas aves, no entanto, a penetração de mais de um espermatozoide é normal, embora apenas um pronúcleo masculino se formará, fundindo-se com o feminino. -/- Figura 6: etapas do processo de segmentação/clivagem. Fonte: aula de reprodução da professora Domenica Palomaris, UFT. -/- Ginogênese -/- É o desenvolvimento de um embrião a partir de um óvulo normal fecundado por um espermatozoide, mas sem a fusão dos cromossomos masculinos com os da fêmea. A função do espermatozoide, nesse caso, é a de ativação do ovócito para que este inicie seu desenvolvimento, mas não há fusão com o núcleo do espermatozoide. Ocorre em plantas, em nematódeos e em algumas espécies de peixes, por exemplo a Poecilia formosa, espécie em que os ovócitos das fêmeas são ativados por machos de outra espécie relacio-nada. -/- Partenogênese -/- Consiste no desenvolvimento do embrião sem a participação do espermatozoide. Ocorre em alguns insetos, o zangão, por exemplo, é partenogenético. Também pode apresentar-se em perus, cujos embriões são machos e, geralmente, morrem antes da eclosão. -/- • _____GÊMEOS -/- Existem dois tipos de gêmeos: idênticos ou monozigóticos e os não idênticos ou dizigóticos. -/- Idênticos ou monozigóticos -/- Originam-se do mesmo zigoto, sendo assim, possuem o mesmo genótipo e um fenótipo similar e, portanto, são do mesmo sexo. Em laboratório é possível gerá-los ao seccionar uma mórula em duas ou mais partes, por meio de um micromanipulador. Uma vez que possuem o mesmo genótipo, os produtos resultantes são clones. -/- Não idênticos ou dizigóticos -/- Provêm da fertilização de dois óvulos distintos por espermatozoides diferentes. Possuem, portanto, genótipos e fenótipos diferentes, e podem ser de sexo diferente. -/- REFERÊNCIAS BIBLIOGRÁFICAS -/- ALBERTS, Bruce et al. Biologia molecular da célula. Artmed Editora, 2010. AUSTIN, Colin Russell; SHORT, Roger Valentine. Reproduction in Mammals, Book I: Germ Cells and Fertilization. 1982. BEARDEN, Henry Joe et al. Reproducción animal aplicada. México: Manual Moderno, 1982. BOSCH, P.; WRIGHT JR, R. W. The oviductal sperm reservoir in domestic mammals. Archivos de medicina veterinaria, v. 37, n. 2, p. 95-105, 2005. CAPALLEJAS, Roberto Brito; RODRÍGUEZ, Lourdes Tagle. Fisiología de la reproducción animal: con elementos de biotecnología. Editorial Félix Varela, 2010. CROXATTO, Horacio B. Physiology of gamete and embryo transport through the fallopian tube. Reproductive biomedicine online, v. 4, n. 2, p. 160-169, 2002. CUPPS, Perry T. (Ed.). Reproduction in domestic animals. Elsevier, 1991. DIEDRICH, Smidt et al. Endocrinología y Fisiología de la Reproducción de los Animales Zootécnicos. 1972. DUKES, Henry Hugh; SWENSON, Melvin J.; REECE, William O. Dukes fisiologia dos animais domésticos. Editora Guanabara Koogan, 1996. FERREIRA, A. de M. Reprodução da fêmea bovina: fisiologia aplicada e problemas mais comuns (causas e tratamentos). Juiz de Fora: Minas Gerais–Brasil, p. 422, 2010. HAFEZ, Elsayed Saad Eldin; HAFEZ, Bahaa. Reprodução animal. São Paulo: Manole, 2004. HUNTER, Ronald Henry Fraser. The Fallopian tubes in domestic mammals: how vital is their physiological activity?. Reproduction Nutrition Development, v. 45, n. 3, p. 281-290, 2005. HUNTER, R. H. F.; RODRIGUEZ‐MARTINEZ, H. Capacitation of mammalian spermatozoa in vivo, with a specific focus on events in the Fallopian tubes. Molecular Reproduction and Development: Incorporating Gamete Research, v. 67, n. 2, p. 243-250, 2004. GALINA, Carlos; VALENCIA, Javier. Reproducción de los animales domésticos. 2006. HOPPER, Richard M. (Ed.). Bovine reproduction. John Wiley & Sons, 2014. HYTTEL, Poul; SINOWATZ, Fred; VEJLSTED, Morten. Embriologia veterinária. Elsevier Brasil, 2012. KÖLLE, Sabine; REESE, Sven; KUMMER, Wolfgang. New aspects of gamete transport, fertilization, and embryonic development in the oviduct gained by means of live cell imaging. Theriogenology, v. 73, n. 6, p. 786-795, 2010. MCKINNON, Angus O. et al. (Ed.). Equine reproduction. John Wiley & Sons, 2011. OLIVERA, Martha et al. El espermatozoide, desde la eyaculación hasta la fertilización. Revista Colombiana de Ciencias Pecuarias, v. 19, n. 4, p. 426-436, 2006. PLANT, Tony M.; ZELEZNIK, Anthony J. (Ed.). Knobil and Neill's physiology of reproduction. New York: Academic Press, 2014. RODRIGUEZ-MARTINEZ, Heriberto. Role of the oviduct in sperm capacitation. Theriogenology, v. 68, p. S138-S146, 2007. SAAVEDRA LEOS, María Dolores. Estudio de la composición de los gránulos corticales y del oolema de ovocitos porcinos y bovinos madurados y fecundados in vitro. Proyecto de investigación:, 2010. SENGER, Phillip L. et al. Pathways to pregnancy and parturition. Current Conceptions, Inc, 2004. SUAREZ, Susan S. The oviductal sperm reservoir in mammals: mechanisms of formation. Biology of Reproduction, v. 58, n. 5, p. 1105-1107, 1998. VALENCIA MÉNDEZ, Javier de J. Fisiología de la reproducción porcina. 1986. -/- FIXAÇÃO DO ASSUNTO -/- 1. Defina e diferencie fertilização e segmentação. -/- 2. Disserte sobre o transporte do ovócito. Por que no istmo o transporte do ovócito se torna lento? -/- 3. Fale sobre a eficiência do transporte do gameta no trato genital da fêmea e sobre a retenção de ovócitos pela égua. -/- 4. Defina as células do cumulus e explique seu papel sobre o ovócito. -/- 5. Quais as estruturas que compõem o ovócito? Qual a função de cada uma? -/- 6. Todos os ovócitos das fêmeas domésticas são iguais? Justifique. -/- 7. Disserte sobre o papel dos hormônios e das secreções sobre o transporte do ovócito no trato genital da fêmea. -/- 8. Disserte sobre o transporte do espermatozoide. Por que há transporte rápido e lento dos espermatozoides? -/- 9. Fale sobre o local de deposição do sêmen nas espécies domésticas e como esse influen-cia na eficiência da reprodução. -/- 10. Por que a vida média do espermatozoide canino é maior que as outras espécies? -/- 11. Quais as mudanças que os espermatozoides precisam sofrer para conseguir êxito na fertilização e por quê? -/- 12. Defina fase de transporte rápido, fase sustentada e hipermotilidade. Qual a importân-cia de cada um? -/- 13. Como ocorre a reação acrossômica? -/- 14. O que é polispermia e como ocorre seu bloqueio? 15. Como ocorre a ativação do ovócito e como se formam os pronúcleos? -/- 16. O que é e qual a importância da singamia? -/- 17. Disserte sobre as divisões de segmentação e qual a importância destas para o êxito da reprodução. -/- 18. Defina e diferencia mórula e blastocisto. -/- 19. Defina e diferencie ginogênese e partenogênese. -/- 20. Qual o papel endócrino e quais hormônios e enzimas atuam sobre o transporte de gametas, sobre a fertilização e sobre a segmentação? (shrink)

This paper explores the characteristics of debilitating versus beneficial intersubjective engagements, by discussing the role of sin in the relational constitution of the self in Paul’s letter to the romans. Paul narrates ”sin’ as both a destructive holding environment and an interpersonal agent in a lethal embrace with human beings. The system of self-in-relation-to-sin is transactional, competitive, unidirectional, and domineering, operating implicitly within an economy of lack. Conversely, Paul’s account in romans of the divine action that moves persons into a (...) new identity of self-in-relationship demonstrates genuinely second-personal qualities: it is loving, non-transactional, non- competitive, mutual, and constitutive of personal agency. (shrink)

This is the text of Dr. Sterrett's replies to an interviewer's questions for simplycharly.com, a website with interviews by academics on various authors, philosophers, and scientists.

When devising a plan of remedial action to address an ongoing injustice, it is desirable to possess an understanding of the key contributing factors and mechanisms that produce and sustain it. This is the domain of etiology of injustice. Etiology of injustice involves practices of causal selection that give explanatory priority to the operative causation of the injustice at issue. Operative causation refers to those processes and conditions that might be changed for the injustice to cease and to be sufficiently (...) prevented in the future. This article uses causal selection criteria to theorize the ways in which a remedial orientation toward the explanandum of injustice determines the parameters of explanatory relevance. (shrink)

This paper examines the links between acting upon a duty to assist, responsibility for these actions, and how such actions link with incremental moral duties that can amass as a consequence of such action. More specifically, this paper is concerned with practices of international aid and assistance, whereby public and privately funded donations enable the actions of parties outside of the territorial and jurisdictional boundaries of a community and state to directly influence the functioning of that community, and the incremental (...) moral duties to which such action can give rise. Using a Senian account of the basis of moral duty, it explains how agents are responsible for the outcomes of their acts of assistance, even when mediated through international institutional actors, and how such acts can give rise to accumulative duties and obligations that are not bound or constrained by territorial boundaries or pre-existing special obligations. (shrink)

As the English word “scientism” is currently used, it is a trivial verbal truth that scientism—an inappropriately deferential attitude to science—should be avoided. But it is a substantial question when, and why, deference to the sciences is inappropriate or exaggerated. This paper tries to answer that question by articulating “six signs of scientism”: the honorific use of “science” and its cognates; using scientific trappings purely decoratively; preoccupation with demarcation; preoccupation with “scientific method”; looking to the sciences for answers beyond their (...) scope; denying the legitimacy or worth of non-scientific (e.g., legal or literary) inquiry, or of writing poetry or making art. (shrink)

While artificial womb technology is currently being studied for the purpose of improving neonatal care, I contend that this technology ought to be pursued as a means to address the unprecedented rate of unintended pregnancies. But ectogenesis, alongside other emerging reproductive technologies, is problematic insofar as it threatens to disrupt the natural link between procreation and parenthood that is normally thought to generate rights and responsibilities for biological parents. I argue that there remains only one potentially viable account of parenthood: (...) the voluntarist account, which construes parental rights as robust moral obligations that must be voluntarily undertaken. The problem is that this account mistakenly presumes a patriarchal divide between procreation and parenthood. I propose a reframing of procreation and parenthood from a feminist perspective that recognises gestational motherhood as involving robust moral obligations that ought to be voluntarily undertaken. If this were the case, all gestational mothers would be, by definition, willing mothers. To make this happen I argue that ectogenesis technology must be a widely available reproductive option. (shrink)

In this analysis of one of the most difficult and neglected topics in Hegelian studies, Songsuk Susan Hahn tackles the status of contradiction in Hegel's ...

Suicide is a complex act whose meanings, while sometimes tragic, vary widely. This chapter surveys the ethical landscape surrounding algorithmic methods of suicide prevention especially as it pertains to social media activity and to the moderation of online suicide communities. We begin with a typology of suicide, distinguishing between varied goals in which suicide may factor as a means. Suicides should be understood as an act with varied eliciting desires, meanings, consequences, and ethics. Further,while many suicides may be grounded on (...) irrational desire, we argue that a desire to suicide may nonetheless be rational in some cases. We then offer a survey of the attempts by social media corporations to create suicide prediction algorithms and launch interventions aimed at preventing suicide as well as an overview of the current ethical debate. We argue that the values embedded within algorithmic suicide prevention nudges are “thick” in a substantive sense and deserving of scrutiny. Given that debates about the rationality, meaning, and permissibility of suicide are common and subject to intracultural and cross-cultural differences, we maintain that the task of suicide prediction is ill-suited to algorithmic approaches. Despite an algorithm’s ability to quantify a complex phenomenon like suicide risk and its appearance of objectivity, any suicide prediction algorithm is thoroughly subjective and involves moral judgments all the way down. Any such algorithm would necessarily impose a normative stance on suicide onto its user base that is subject to reasonable intra and cross-cultural disagreement. (shrink)

Summary Analogue models are actual physical setups used to model something else. They are especially useful when what we wish to investigate is difficult to observe or experiment upon due to size or distance in space or time: for example, if the thing we wish to investigate is too large, too far away, takes place on a time scale that is too long, does not yet exist or has ceased to exist. The range and variety of analogue models is too (...) extensive to attempt a survey. In this article, I describe and discuss several different analogue model experiments, the results of those model experiments, and the basis for constructing them and interpreting their results. Examples of analogue models for surface waves in lakes, for earthquakes and volcanoes in geophysics, and for black holes in general relativity, are described, with a focus on examining the bases for claims that these analogues are appropriate analogues of what they are used to investigate. A table showing three different kinds of bases for reasoning using analogue models is provided. Finally, it is shown how the examples in this article counter three common misconceptions about the use of analogue models in physics. (shrink)

What does it mean to be responsible for structural injustice? According to Iris Marion Young, the ongoing and socially embedded character of structural injustice imposes a future-oriented obligation to work with others toward creating remedial, institutional change. Young explains, ‘Political responsibility seeks less to reckon debts than to bring about results’ (Young, 2003, p. 13). This paper conceptually develops how the goal of remediation bears on responsibility in relation to structural injustice. Does the attribution of responsibility in this context call (...) upon individuals to simply do anything in efforts to affect progressive change? If not, then to what extent are these attributions of responsibility action guiding? On what basis do they direct agents to effectively intervene on relevant conditions and processes rather than act in ways that exacerbate the injustice? I explore the role of etiological explanation in the attribution and acceptance of corrective responsibility, which refers to diagnosis of the operative causation of unjust outcomes. After probing tensions within prominent models of corrective responsibility, I offer my own model attempting to resolve those issues. I argue the forward-looking nature of the call to participate in remedying social problems includes a demand for agents to do so in a way that is itself responsible. I theorize a framework of taking responsibility responsibly. This framework accounts for the moral difference between a conscientiously formulated program of remedial action and a quixotic exercise in reckless delusion. (shrink)

The concept of similar systems arose in physics, and appears to have originated with Newton in the seventeenth century. This chapter provides a critical history of the concept of physically similar systems, the twentieth century concept into which it developed. The concept was used in the nineteenth century in various fields of engineering, theoretical physics and theoretical and experimental hydrodynamics. In 1914, it was articulated in terms of ideas developed in the eighteenth century and used in nineteenth century mathematics and (...) mechanics: equations, functions and dimensional analysis. The terminology physically similar systems was proposed for this new characterization of similar systems by the physicist Edgar Buckingham. Related work by Vaschy, Bertrand, and Riabouchinsky had appeared by then. The concept is very powerful in studying physical phenomena both theoretically and experimentally. As it is not currently part of the core curricula of STEM disciplines or philosophy of science, it is not as well known as it ought to be. (shrink)

There is a long standing controversy in education as to whether education ought to be teacher- or student- centered. Interestingly, this controversy parallels the parent- vs. child-centered theoretical swings with regard to good parenting. One obvious difference between the two poles is the mode of communication. “Authoritarian” teaching and parenting strategies focus on the need of those who have much to learn to “do as they are told,” i.e. the authority talks, the child listens. “Non-authoritarian” strategies are anchored in the (...) assumption that youngsters ought to be encouraged to develop their natural interests and talents and hence that it is important to allow the children to do the talking and that adults listen. Both strategies seemed flawed due to the absence of the inherent wisdom of its opposing view. This chasm can be overcome. The Community of Inquiry, a pedagogical method used in Philosophy for Children, demands a method of communication which is able to bridge this gap. A Community of Inquiry is neither teacher-centered and controlled nor student-centered and controlled, but centered on and controlled by the demands of truth. Truth is absolutely essential to this method; it is only because of progress toward truth that participants are ultimately convinced of the fruitfulness of the process. Truth, however, is a hard taskmaster; it places severe restrictions on participants and puts exacting demands on the facilitator. These inherent restrictions and demands are too often underplayed, overlooked and sometimes seemingly overtly denied by those who, quite correctly emphasize that ultimately this method depends on maintenance and enhancement of student autonomy. This underrating of the role of the facilitator has led to a severe undervaluing of this otherwise brilliant pedagogical method, but worse, it has left novice teacher/facilitators ill prepared to utilize this method successfully. (shrink)

Many academic works as well as many works of art are such that if they had never been produced, no one would be worse off. Yet it is hard to resist the judgment that some such works are good nonetheless. We are rightly grateful that these works were created; we rightly admire them, appreciate them, and take pains to preserve them. And the authors and artists who produced them have reason to be proud. This should lead us to question the (...) view that in order for a thing to be good, in a sense which implies that the thing merits our attention and positive concern, it needs to be good for someone or something whose welfare is enhanced by it. (shrink)

The Republic’s political discussion begins with the construction of two contrasting cities: a ‘healthy’ city and a ‘city with a fever’; one defined by environmentally sustainable subsistence practices and the other by ‘luxurious’ over consumption that exceeds the carrying capacity of its land. Plato’s characters proceed to cure the inflamed city of its fever, resulting in the delineation of the ideal political constitution, the Kallipolis, which recovers the virtues of the original, healthy city in an altered form. This paper develops (...) an ecological reading of the Republic, highlighting Plato’s optimism regarding humans’ ability to limit their material consumption in accordance with the limits of the natural world. The conventional interpretation of the Republic’s first city, known as ‘the city of pigs’, is reconsidered in light of new socio-ecological research on traditional resource management systems. (shrink)

The method of metaphysics: Metaphysics is empirical but depends not, like the sciences, on recondite experience but on close attention to aspects of everyday experience we ordinarily scarcely notice. "Real" is a broader concept than "exists" (which applies only to particulars) and also applies to phenomena, kinds, and laws, which are real, but not, of course, existent entities. But "there are real kinds, laws, etc." doesn't imply that all the kinds and laws we believe are real, are. I call my (...) approach "Innocent Realism" because--though it's certainly not naive--it requires attending to experience, so far as possible, without substantial preconceptions. There is one real world, enormously varied but also integrated. It includes physical stuff, kinds, laws, etc. and, here on earth, a vast array of human artifacts, physical, social, intellectual, and imaginative, all intimately interconnected. All this requires human mindedness (a better word than "mind" because it doesn't suggest that human mentality is an organ like the heart or the liver). Rather, it's a complex congeries of dispositions and abilities: to understand even such a relatively simple thing as what's involved in someone's believing something, we need to take account of the person's dispositions to behavior, verbal and otherwise; to the neurophysiological realizations of these dispositions; and to their connections to the world and to words in the person's linguistic community--this last requiring other people's words-world connection. "Virtual" reality is just one more computer artifact, clever, no doubt, but not metaphysically startling. It's oversold, but this is advertising hype, not serious metaphysics. (shrink)

In *Engaging Capital Emotions,* Douglas Berman and Stephanos Bibas argue that emotion is central to understanding and evaluating the death penalty, and that the emotional case for the death penalty for child rape may be even stronger than for adult murder. Both the Berman and Bibas article and the subsequent Supreme Court decision in Kennedy v. Louisiana (striking down the death penalty for child rape) raise difficult questions about how to measure the heinousness of crimes other than murder, and about (...) the role the pain suffered by victims and victims' families should play in this inquiry. In this Reply, I agree with the authors on the importance of confronting emotion's role in capital punishment, for reasons I discuss in Part A. However, I disagree with their claim that the moral outrage evoked by child rape supports making it a capital crime. Part B explores the difficulties of using the existence of moral outrage as a measure of appropriate punishment. Part C argues that the penal system should not merely reflect moral outrage, but channel and educate it. It suggests that the availability of the death penalty may create an anchoring effect, communicating the message that the death penalty is the proper way to express moral outrage and to honor the worth of murder victims. It explores the consequences of this message. Section II focuses on the role of emotion in deciding whether child rape should be a capital crime. Part A considers the problematic role of victim harm in determining whether the death penalty is appropriate. It explores the question, raised in Kennedy v Louisiana, of whether the effect of a capital trial on child rape victims ought to be part of the calculus. Part B argues that there are three particular problems with allowing juries to sentence child rapists to death: the deleterious effect of anger and empathy, the problem of generic prejudice, and the issue of race. (shrink)

The tragedy of the commons is a primary contributing factor in ensuring that humanity makes no serious inroads in averting climate change. As a recent Canadian politician pointed out, we could shut down the Canadian economy tomorrow, and it would make no measurable difference in global greenhouse gas emissions. When coordinated effort is required, it would seem that doing the “right thing” alone is irrational: it will harm oneself with no positive consequences as a result. Such is the tragedy. And (...) that is the challenge that we take up here. Though Garrett Hardin suggests that the solution is a governmental process that rules over all contenders, since a world government seems unlikely before the planet hits the tippy point, we suggest an educational initiative instead: one that holds a mirror up to the behaviour of individuals, rather than to the behaviour of individuals in groups. Such an educational initiative would be focused on priming individuals to keep constant track of what they do as individuals as opposed to focusing on the behaviour of humanity in general. Such an educational initiative would focus on tackling the “problem solvers” rather than just “the problem”. (shrink)

To formulate a plan of action for bringing about a decisive and reasonably stable end to an injustice, it is helpful to understand the factors and conditions that critically make the difference in causing that injustice. This intuitively seems correct regarding active and ongoing problems. But what precisely is involved in this kind of explanatory endeavor, and what is its role in practical efforts to confront existing wrongs? This paper offers an introduction to etiology of injustice, which is the study (...) and explanation of the operative causation of injustices. Drawing on insights from the philosophy of social transformation, causation, and remedial justice, I sketch a conceptual framework for understanding and undertaking the task of etiology of injustice and outline the contours of the etiological tradition of thought. (shrink)

On a literal reading of `Computing Machinery and Intelligence'', Alan Turing presented not one, but two, practical tests to replace the question `Can machines think?'' He presented them as equivalent. I show here that the first test described in that much-discussed paper is in fact not equivalent to the second one, which has since become known as `the Turing Test''. The two tests can yield different results; it is the first, neglected test that provides the more appropriate indication of intelligence. (...) This is because the features of intelligence upon which it relies are resourcefulness and a critical attitude to one''s habitual responses; thus the test''s applicablity is not restricted to any particular species, nor does it presume any particular capacities. This is more appropriate because the question under consideration is what would count as machine intelligence. The first test realizes a possibility that philosophers have overlooked: a test that uses a human''s linguistic performance in setting an empirical test of intelligence, but does not make behavioral similarity to that performance the criterion of intelligence. Consequently, the first test is immune to many of the philosophical criticisms on the basis of which the (so-called) `Turing Test'' has been dismissed. (shrink)

There is a growing contention in the Housing Justice movement from activists, theorists, and politicians that not only should everyone have enough housing, but there is something wrong with having too much of it. This paper provides a framework to articulate and defend efforts to create housing wealth ceilings. Building on the work of Ingrid Robeyns, it develops the moral and political doctrine of housing limitarianism. This doctrine asserts it is morally wrong to have too much housing while others, human (...) or animal, do not have enough, and that governments ought to limit the excessive acquisition/consumption of housing by individuals and corporations. I employ the Rawlsian ideal of property-owning democracy to argue for the dispersal of homeownership throughout society. Lastly, I discuss how housing justice can ethically negotiate the apparent conflict between increasing the supply of affordable housing and the preservation of natural habitat for wildlife. (shrink)

There are kinds of dialogue that support social justice and others that do the reverse. The kinds of dialogue that support social justice require that anger be bracketed and that hiding in safe spaces be eschewed. All illegitimate ad hominem/ad feminem attacks are ruled out from the get-go. No dialogical contribution can be down-graded on account of the communicator’s gender, race, or religion. As well, this communicative approach unapologetically privileges reason in full view of theories and strategies that might seek (...) to undermine reasoning as just another illegitimate form of power. On the more positive side, it is argued in this paper that social justice dialogue will be enhanced by a kind of “communicative upgrading,” which amplifies “person perception,” foregrounds the impersonal forces within our common social spaces rather than the “baddies” within, and orients the dialogical trajectory toward the future rather than the past. Finally, it is argued in this paper that educators have a pressing responsibility to guide their students through social justice dialogue so that their speech contributes to the amelioration of injustice, rather than rendering the terrain more treacherous. (shrink)

During the past decades, our image ofHomo neanderthalensishas changed dramatically. Initially, Neanderthals were seen as primitive brutes. Increasingly, however, Neanderthals are regarded as basically human. New discoveries and technologies have led to an avalanche of data, and as a result of that it becomes increasingly difficult to pinpoint what the difference between modern humans and Neanderthals really is. And yet, the persistent quest for a minimal difference which separates them from us is still noticeable in Neanderthal research. Neanderthal discourse is (...) a vantage point from which the logic of ‘us’ versus ‘other’ is critically reconsidered. Studying contemporary academic literature and science autobiographies from an oblique perspective, focusing not on Neanderthals as objects, but on the dynamics of interaction between Neanderthal researchers and their finds, basic convictions at work in this type of research are retrieved. What is at issue is not the actual distinction between modern humans and Neanderthals, but rather the dualistic construction of human and nonhuman. Neanderthal understanding is affected by the desire to safeguard human uniqueness. The overall trend is to identify the human mark or spark, which defines us as favoured ‘winners’. The paradoxes emerging in contemporary Neanderthal discourse are symptomatic of the fact that a dualistic style of thinking is no longer tenable. (shrink)

There is a clear distinction between genuine and fraudulent reasoning. Being seduced by the latter can result in horrific consequences. This paper explores how we can arm ourselves, and others with the ability to recognize the difference between genuine and pseudo-reasoning, with the motivation to maintain an unbending commitment to follow the “impersonal” “norm-driven” rules of reason even in situations in which “non-reasonable” strategies appear to support short-term bests interests, and with the confidence that genuine reasoning is the best defense (...) against the pseudo-reasoning. It also provides a simple table of “markers” whereby genuine reasoning can be distinguished from the “fake stuff.”. (shrink)

After the 2016 election of Donald Trump, many commentators latched on to the accusations Rorty levels at the American Left in Achieving Our Country. Rorty foresaw, they claimed, that the Left's preoccupation with cultural politics and neglect of class politics would lead to the election of a "strongman" who would take advantage of and exploit a rise in populist sentiment. -/- In this paper, I generally agree with these readings of Rorty; he does think that the American Left has made (...) the mistake of putting class on the political backburner. However, I suggest that this position follows from his view that economic security is vital for solidarity. Because economic security is under increasing threat in contemporary America, so too is solidarity. If greater solidarity is a goal of liberal democracy, then class politics, aimed at ending selfishness, ought to be as much a priority for the American Left as is cultural politics, aimed at ending sadism. (shrink)

It is the aim of this paper to show that [the theological argument from Divine omniscience] is not more than a needlessly (and confusingly) elaborate version of the argument for fatalism discussed by Aristotle in de Interpretatione 9, which, since its sole premise is the Principle of Bivalence, may conveniently be called the logical argument for fatalism. If this is right, if the theological premisses of the theological argument can be shown to be strictly irrelevant to the fatalist conclusion, then (...) it follows that it is pointless to try to avoid fatalism by modification of those theological premisses. (shrink)

Misrepresentations can be innocuous or even useful, but Kant’s corollary to the formula of universal law appears to involve a pernicious one: “act as if the maxim of your action were to become by your will a universal law of nature”. Humans obviously cannot make their maxims into laws of nature, and it seems preposterous to claim that we are morally required to pretend that we can. Given that Kant was careful to eradicate pernicious misrepresentations from theoretical metaphysics, the imperative (...) to act as if I have this supernatural power has typically been treated as an embarrassment meriting apology. The wording of the corollary may be vindicated, however, by recognizing that “as if” (als ob) is a technical term both in the Critique of Pure Reason and here. It signals a modal shift from the assertoric to the problematic mode of cognition, one that is necessitated by the attempt to incorporate the natural effects of a free will into a universal moral imperative that is philosophically practical. In this paper I sketch how the modal shift makes sense of the corollary as a subjectively necessary, philosophically practical idealization of the extension of human freedom into nature, one that accurately represents a necessary parameter of moral conduct: moral ambition. (shrink)

Given that one of the major goals of the practice of Philosophy for Children (P4C) is the development of critical thinking skills (Sharp 1987/2018, pp. 4 6), an urgent question that emerged for one of the authors, who is of Chinese Heritage and a novice practitioner at a P4C summer camp was whether this emphasis on critical thinking might make this practice incompatible with the fabric of Chinese culture. Filial piety (孝), which requires respect for one’s parents, elders, and ancestors (...) is considered an important virtue in Asian culture, as is the preservation of harmony. But if one of the goals of P4C is to teach youngsters to courageously pursue reasoned dialogue, does this not set-up young Asians for serious conflict when they come face-to-face with positions that are articulated by elders, but which are ones to which they are diametrically opposed; a racist grandmother, for instance, or an uncle who insists that those at the Tiananmen Square uprising were nothing but hooligan’s. It is this question that we will explore in this presentation. In the process, we will come to the conclusion that, when positions seem irreconcilable, rather than continuing to pursue rigorous critical interchange that may do little other than escalate insult, the facilitator, rather, ought to move toward creating a deeper understanding of each position juxtaposed against its opposing view (a process that we refer to as ‘collaborative caring’), so as to produce side-by-side understanding, knowing that communal bonds have been maintained and, hence, that the opportunity for genuine reasoned collaborative inquiry on other issues and at future times remains open. (shrink)

I address questions about values in model-making in engineering, specifically: Might the role of values be attributable solely to interests involved in specifying and using the model? Selected examples illustrate the surprisingly wide variety of things one must take into account in the model-making itself. The notions of system, and physically similar systems are important and powerful in determining what is relevant to an engineering model. Another example illustrates how an idea to completely re-characterize, or reframe, an engineering problem arose (...) during model-making. I employ a qualitative analogue of the notion of physically similar systems. Historical cases can thus be drawn upon; I illustrate with a comparison between a geoengineering proposal to inject, or spray, sulfate aerosols, and two different historical cases involving the spraying of DDT. The current geoengineering proposal is seen to be like the disastrous and counterproductive case, and unlike the successful case, of the spraying of DDT. I conclude by explaining my view that model-making in science is analogous to moral perception in action, drawing on a view in moral theory that has come to be called moral particularism. (shrink)

An overview of the current epistemic literature concerning conspiracy theories, as well as indications for future research avenues on the topic.

In this short paper I will introduce an idea which, I will argue, presents a fundamental additional challenge to the machine consciousness community. The idea takes the questions surrounding phenomenology, qualia and phenomenality one step further into the realm of intersubjectivity but with a twist, and the twist is this: that an agent’s intersubjective experience is deeply felt and necessarily co-affective; it is enkinaesthetic, and only through enkinaesthetic awareness can we establish the affective enfolding which enables first the perturbation, and (...) then the balance and counter-balance, the attunement and co-ordination of whole-body interaction through reciprocal adaptation. (shrink)

In this paper, I explore the connection between Olivi’s views about the nature of conscious experience, on the one hand, and his views about the nature of the soul on the other. In particular, I argue that Olivi’s account of the soul as essentially active and essentially reflexive entails a commitment on his part to a kind of innate self-knowing. I further show that, for Olivi, this primal psychological self-reflexivity plays an important role in explaining the subjective character of conscious (...) states. (shrink)

Let us suppose that we accept that humans can be correctly characterized as agents. Let us further presume that this capacity contrasts with most non-human animals. Thus, since agency is what uniquely constitutes what it is to be human, it must be of supreme importance. If these claims have any merit, it would seem to follow that, if agency can be nurtured through education, then it is an overarching moral imperative that educational initiatives be undertaken to do that. In this (...) paper, it will be argued that agency can indeed be enhanced, and that the worldwide educational initiative called Philosophy for Children, and others like it, are in a unique position to do just that, and, therefore, that P4C deserves our praise and support; while denigrations of such efforts for not being “real philosophy” ought to be thoroughly renounced. (shrink)

In December 2013, the Nonhuman Rights Project (NhRP) filed a petition for a common law writ of habeas corpus in the New York State Supreme Court on behalf of Tommy, a chimpanzee living alone in a cage in a shed in rural New York (Barlow, 2017). Under animal welfare laws, Tommy’s owners, the Laverys, were doing nothing illegal by keeping him in those conditions. Nonetheless, the NhRP argued that given the cognitive, social, and emotional capacities of chimpanzees, Tommy’s confinement constituted (...) a profound wrong that demanded remedy by the courts. Soon thereafter, the NhRP filed habeas corpus petitions on behalf of Kiko, another chimpanzee housed alone in Niagara Falls, and Hercules and Leo, two chimpanzees held in research facilities at Stony Brook University. Thus began the legal struggle to move these chimpanzees from captivity to a sanctuary, an effort that has led the NhRP to argue in multiple courts before multiple judges. The central point of contention has been whether Tommy, Kiko, Hercules, and Leo have legal rights. To date, no judge has been willing to issue a writ of habeas corpus on their behalf. Such a ruling would mean that these chimpanzees have rights that confinement might violate. Instead, the judges have argued that chimpanzees cannot be bearers of legal rights because they are not, and cannot be persons. In this book we argue that chimpanzees are persons because they are autonomous. (shrink)

Important advances in biomedical and behavioral research ethics have occurred over the past few decades, many of them centered on identifying and eliminating significant harms to human subjects of research. Comprehensive attention has not been paid to the totality of harms experienced by animal subjects, although scientific and moral progress require explicit appraisal of these harms. Science is a public good and the prioritizing within, conduct of, generation of, and application of research must soundly address questions about which research is (...) morally defensible and valuable enough to support through funding, publication, tenure, and promotion. Likewise, educational pathways of re-imagined science are critical. (shrink)

That the world is awash with resentment poses a genuine question for educators. Here, we will suggest that resentment can be better harnessed for good if we stop focusing on people and tribes and, instead, focus on systems: those invisible norms that often produce locked-in structures of social interaction. A “systems lens” is vast, so fixes will have to be an iterative process of reflection, and revision toward a more just system. Nonetheless, resentment toward the status quo may be an (...) important element in keeping that otherwise tedious process going, with the caveat that resentment is only productive when it is combined with reason, and that, therefore, educators, rather than privileging participant reactive attitudes, ought, instead, to promote participant reactive reasoning, as the latter can be a genuine force for both personal and interpersonal growth, while the former might very well do the reverse. (shrink)