“Conciencia”, la sección inicial de la Fenomenología de Hegel, se ocupa de la comprensión del mundo físico que nos rodea. La sección siguiente, “Autoconciencia”, comienza a considerar nuestra comprensión de nosotros mismos y de los otros. Este orden de discusión no es ni arbitrario ni meramente conveniente. Por el contrario, una de las principales lecciones que hemos de aprender hacia el final del desarrollo de la “conciencia” es que nuestra mejor concepción del mundo que es el objeto de nuestras actividades (...) cognitivas es inteligible solo como una parte de un relato que además considera la naturaleza del sujeto que se dedica a tales actividades. La razón para esta transición expositiva es un aspecto importante en el idealismo de Hegel. En este capítulo ofrezco una reconstrucción racional de un argumento que veo como el soporte de esta transición y del tipo de idealismo que esta implica. (shrink)

La última década ha supuesto un renovado interés por la filosofía de Wilfrid Sellars. Este libro representa el paradigma de este renovado interés, si bien no es el único. Gracias al trabajo editorial de James O’Shea, la mayoría de las presentaciones de la Sellars Centenary Conference, que tuvo lugar en la University College Dublin, en 2012, fueron editadas y compiladas en este volumen. En la mencionada conferencia, varios herederos de Sellars hicieron explícita su influencia, elaboraron críticas concienzudas, o extendieron algunas (...) de las ideas del que para muchos de ellos es su principal mentor intelectual. De ahí el título del volumen, del que la mayoría de las contribuciones adopta una línea parricida. En esta reseña quiero desta- car la trama principal de cada una de las contribuciones, de forma que sea visible la diversidad de las cuestiones filosóficas en las que se juega la influencia de Sellars. (shrink)

No debemos olvidar que existe una relación dialéctica entre libertad y justicia. Cuanto mayor es la justicia, más necesario es limitar la libertad; cuanto mayor es la libertad que se disfruta, más se amenaza la justicia, porque los más fuertes, los más inteligentes, los más hábiles acaban oprimiendo a los demás. Esta antítesis de libertad y justicia debe estar siempre presente en nuestra conciencia, incluso cuando pensamos en la sociedad del futuro.

This paper is an essay published under the title A Critical Praxis from the Americas: Thinking about the Zapatistas in Chiapas with Herbert Marcuse, Bolívar Echeverría, and Adolfo Sánchez Vázquez, in Lamas, A. T .; Wolfson, T. & Funke, P. N. (Eds.). (2017). The Great Refusal: Herbert Marcuse and Contemporary Social Movements (pp. 329-342). Philadelphia: Temple University Press. The author kindly authorized the publication in Spanish version by Jhoan Sebastian David Giraldo and Cristian Leandro Sánchez Marín.

With an extensive amount of research on the social lives of primates, Frans de Waal has been a pioneering advocate for the continuity of human and non-human minds, putting forward the idea that these creatures exhibit rudimentary political and moral behaviors. One of the traits which de Waal focuses on is animal normativity, a set of behaviors functionally defined as adherence to social standards. Recently, some philosophers have endorsed this position, holding that animals show a psychological capacity called normative cognition (...) underlying those and other social behaviors. In this paper, I assess whether advocacy for animal normativity is an exercise of theory construction in comparative cognition. To that end, I present three features of this kind of theory construction. First, the explanatory goal of building functional analyses of cognitive capacities. Second, the conceptual aid of comparative thinking for theory construction. Third, the heuristic value of theory in specifying possible roads of inquiry. Taking these features into account, I assess whether the claims advocates make regarding animal normativity consider them. My answer is negative. First, since some advocates focus on behavioral traits and not on psychological capacities, they are not producing theory in comparative cognition, although, as I argue, they should. Second, there is a disregard for hypothesis testing and no evolutionary considerations to support their views. Finally, the claim that non-human animals exhibit normativity does not seem to have heuristic value. (shrink)

When reasoning about dependence relations, philosophers often rely on gradualist assumptions, according to which abrupt changes in a phenomenon of interest can result only from abrupt changes in the low-level phenomena on which it depends. These assumptions, while strictly correct if the dependence relation in question can be expressed by continuous dynamical equations, should be handled with care: very often the descriptively relevant property of a dynamical system connecting high- and low-level phenomena is not its instantaneous behaviour but its stable (...) fixed points (those in the vicinity of which it spends most of the time, after comparatively short transitory periods), and stable fixed points can change abruptly as a result of infinitesimal changes of the low-level phenomenon. We illustrate this potential gradualist trap by showing that Chalmers’ fading qualia argument falls into it. (shrink)

This article states that research in skill acquisitionand executionhas underestimated the relevance of some features of attention. We present and theoretically discuss two essential features of attention that have been systematically overlooked in the research of skill acquisitionandexecution. First, attention alters the appearance of the perceived stimuli in an essential way; and second, attention plays a fundamental role in action, being crucial for solving the so called ’many-many problem’, that is to say, the problem of generating a coherent behavior byselecting (...) between many inputs and many potential outputs. We discuss the importance of these features for skill acquisition in sport. We also suggest empirical ways to assess the precise impact of taking them into consideration and at the same time we propose important implications for training derived from the ideas discussed in the paper. (shrink)

De acuerdo con una caracterización filosófica estándar, el comportamiento humano se hace inteligible a partir de estados mentales, atendiendo especialmente a dos relaciones explicativas: la racionalidad y la causalidad. En el presente artículo evaluaremos cuán adecuada es dicha caracterización respecto a las explicaciones que se dan en las psicoterapias contextuales. Nuestro análisis establece varias respuestas por la negativa. Por un lado, el objetivo de estas terapias no es la comprensión ni la evaluación normativa, por lo que la racionalidad no juega (...) allí un rol explicativo. A su vez, el rol de la causalidad es secundario en la evaluación diagnóstica, dado que en esa etapa del proceso terapéutico es la función de los comportamientos la que busca elucidarse. Finalmente, sostenemos que la intervención terapéutica de estas psicoterapias se centra en explicaciones causales, aunque no desde el modelo de sentido común que la caracterización filosófica supone. Sugerimos, por la positiva, que las explicaciones del comportamiento en psicoterapias contextuales son híbridas: al evaluar apelan a explicaciones funcionales y al intervenir a explicaciones causales. (shrink)

The distinction between personal and subpersonal levels of psychological explanation has proved useful in order to differentiate ways of understanding human behavior. Yet little has been discussed about how these kinds of explanations would work in making sense non-animals’ intelligent behavior. In this paper I assess the main characterizations of personal and subpersonal explanations and how they could be applied in interpreting animal behavior in a scientific setting. Specifically, my claim is that personal level explanation is especially relevant to explain (...) human actions as singular events. Through this, I will argue that instances of animal behavior can potentially be taken as singular events in the same way in which we take human action to be. Thus, personal level explanation plays an important role in behavioral sciences of non-human animals. -/- La distinción entre los niveles personal y subpersonal de explicación psicológica ha resultado de gran utilidad para diferenciar distintos modos de comprender el comportamiento humano. La discusión teórica en torno a la distinción se ha enfocado particularmente en torno a cómo caracterizar el nivel personal. Sin embargo, poco se ha dicho sobre cómo estas explicaciones operarían a la hora de hacer inteligible el comportamiento inteligente de animales no humanos. En este trabajo analizo las principales caracterizaciones que se han dado de las explicaciones de nivel personal y cómo éstas aplicarían a la interpretación del comportamiento animal en contextos científicos. Específicamente, defenderé que las explicaciones de nivel personal son especialmente relevantes para explicar las acciones humanas en tanto eventos singulares. A partir de esto, argumentaré que también los comportamientos animales pueden potencialmente ser eventos singulares como lo son las acciones humanas. Así, las explicaciones de nivel personal juegan un rol importante en las ciencias del comportamiento animal. (shrink)

Este libro promete ser una contribución para el estudio de la teoría crítica en general y para el análisis de la historia de la Escuela de Frankfurt en particular. Todos los trabajos que están contenidos en este volumen hacen parte del amplio marco teórico de la teoría crítica de la sociedad. Muchos siguen las huellas de los fundadores de esta tendencia, mientras que otros se presentan como críticos de la misma y unos cuantos más tratan de vincular problemas y contextos (...) de relevancia a los conceptos más destacados que se empezaron a construir hace cien años en Frankfurt. Encontramos como buena excusa para su publicación precisamente el año centenario del Instituto de Investigación Social. Además, hemos creído conveniente organizar los materiales en secciones que van desde la historia de la Escuela de Frankfurt hasta la consideración de algunos interrogantes de actualidad motivados por el desarrollo de la teoría crítica. No obstante, con esto no pretendemos establecer límites absolutos de clasificación. Confesamos que nuestra forma de organizar los ensayos responde simplemente a criterios editoriales más que a cuestiones teóricas y conceptuales. Claramente las intersecciones entre los estudios aquí presentados son amplias y hacen que cada una de las propuestas pueda dialogar con las otras en función de sus evidentes parecidos de familia. (shrink)

La trayectoria intelectual de Marcuse está acompañada de un compromiso constante con las formas de la crítica filosófica heredadas de la tradición occidental, desde la forma en la cual aparece la negación de lo dado a través del diálogo socrático hasta la manera en que se configura la crítica del sistema capitalista en el siglo XX. Esto no quiere decir que Marcuse haya sido un erudito que absorbió y comprendió a cabalidad todos los sistemas e ideas filosóficas y que las (...) utilizó al servicio de su propia consideración crítica del mundo; más bien resalta que entre sus elaboraciones han estado presentes algunos de los contextos e ideas más potentes del pensamiento que ha entendido de manera crítica la estructura de las sociedades humanas. (shrink)

“Postularse como un ser radicalmente autogenerado, ser el autor de la propia voluntad y conocimiento, es negar que uno está constituido en y por lo que es infinitamente más grande que el individuo humano. Kierkegaard llamará a esta fuente más grande que todo lo humano 'Dios' o 'el infinito'. Negar que uno está constituido en lo que es más grande que uno mismo es, para Kierkegaard, estar en una especie de desesperación”.

La negativa a imaginar la "otra" sociedad más allá del capitalismo no está ajena a la prohibición judía de nombrar o describir a Dios. Cualquiera que sea la fuente del tabú, de las principales figuras relacionadas con la Escuela de Frankfurt, solo Mar- cuse se ha atrevido en los últimos años a romperlo. Solo Marcuse ha tratado de decir lo indecible en un esfuerzo cada vez más urgente por reintroducir un molde utópico a la teoría socialista.

A constitutive theory of representation must address two challenges. The content determination challenge requires specifying why a particular state has a given content. The job description challenge requires spelling out the explanatory role that representational notions play in that theory. Recently, Nicholas Shea has advanced *varitel semantics* as a hybrid approach to representation to answer those challenges, supplementing teleosemantics with non-historical features –namely, exploitable relations and robustness. In this paper, I critically assess the hybrid theory’s answers to both challenges, arguing (...) that their hybrid nature undermines their merits. In each case, I will show that it is hard to establish how the alleged complementariness of the hybrid account components works. I will conclude that internal problems beset Shea’s theory of representation. (shrink)

ABSTRACT This article interprets a recently recovered manuscript, Tratado de astronomía y la reformaçión del tiempo, composed by Antonio Sánchez in New Granada c.1696, in the context of the Spanish and Renaissance cosmographies. Sánchez’s Tratado proposes a spherical astronomy, in which celestial bodies – including comets — move in orbs containing pyramidal knots that explain the changing speed observed in the motion of planets. From this astronomy and following the peninsular style of repertorios, Sánchez derives two major (...) conclusions: the corrected length of the solar year and a revised birth date of Jesus. Taking as center of reference Vélez, where Sánchez was based, these claims led to conclusions in domains ranging from calendric astronomy to eschatology, including the incorporation of the indigenous peoples into salvation narrative and a demonstration of the arrangement of the celestial orbs at the Last Judgment. Sánchez’s Tratado constitutes an expansion of the Spanish mathematical cosmography that sheds light on the production of knowledge in the Spanish-American world and, at the same time, provides elements to reassess our understanding of the global circulation of Renaissance and early modern ideas. (shrink)

This twelfth volume of Collected Papers includes 86 papers comprising 976 pages on Neutrosophics Theory and Applications, published between 2013-2021 in the international journal and book series “Neutrosophic Sets and Systems” by the author alone or in collaboration with the following 112 co-authors (alphabetically ordered) from 21 countries: Abdel Nasser H. Zaied, Muhammad Akram, Bobin Albert, S. A. Alblowi, S. Anitha, Guennoun Asmae, Assia Bakali, Ayman M. Manie, Abdul Sami Awan, Azeddine Elhassouny, Erick González-Caballero, D. Dafik, Mithun Datta, Arindam Dey, (...) Mamouni Dhar, Christopher Dyer, Nur Ain Ebas, Mohamed Eisa, Ahmed K. Essa, Faruk Karaaslan, João Alcione Sganderla Figueiredo, Jorge Fernando Goyes García, N. Ramila Gandhi, Sudipta Gayen, Gustavo Alvarez Gómez, Sharon Dinarza Álvarez Gómez, Haitham A. El-Ghareeb, Hamiden Abd El-Wahed Khalifa, Masooma Raza Hashmi, Ibrahim M. Hezam, German Acurio Hidalgo, Le Hoang Son, R. Jahir Hussain, S. Satham Hussain, Ali Hussein Mahmood Al-Obaidi, Hays Hatem Imran, Nabeela Ishfaq, Saeid Jafari, R. Jansi, V. Jeyanthi, M. Jeyaraman, Sripati Jha, Jun Ye, W.B. Vasantha Kandasamy, Abdullah Kargın, J. Kavikumar, Kawther Fawzi Hamza Alhasan, Huda E. Khalid, Neha Andalleb Khalid, Mohsin Khalid, Madad Khan, D. Koley, Valeri Kroumov, Manoranjan Kumar Singh, Pavan Kumar, Prem Kumar Singh, Ranjan Kumar, Malayalan Lathamaheswari, A.N. Mangayarkkarasi, Carlos Rosero Martínez, Marvelio Alfaro Matos, Mai Mohamed, Nivetha Martin, Mohamed Abdel-Basset, Mohamed Talea, K. Mohana, Muhammad Irfan Ahamad, Rana Muhammad Zulqarnain, Muhammad Riaz, Muhammad Saeed, Muhammad Saqlain, Muhammad Shabir, Muhammad Zeeshan, Anjan Mukherjee, Mumtaz Ali, Deivanayagampillai Nagarajan, Iqra Nawaz, Munazza Naz, Roan Thi Ngan, Necati Olgun, Rodolfo González Ortega, P. Pandiammal, I. Pradeepa, R. Princy, Marcos David Oviedo Rodríguez, Jesús Estupiñán Ricardo, A. Rohini, Sabu Sebastian, Abhijit Saha, Mehmet Șahin, Said Broumi, Saima Anis, A.A. Salama, Ganeshsree Selvachandran, Seyed Ahmad Edalatpanah, Sajana Shaik, Soufiane Idbrahim, S. Sowndrarajan, Mohamed Talea, Ruipu Tan, Chalapathi Tekuri, Selçuk Topal, S. P. Tiwari, Vakkas Uluçay, Maikel Leyva Vázquez, Chinnadurai Veerappan, M. Venkatachalam, Luige Vlădăreanu, Ştefan Vlăduţescu, Young Bae Jun, Wadei F. Al-Omeri, Xiao Long Xin.‬‬‬‬‬‬. (shrink)

RELAÇÃO E EFEITOS BIOQUÍMICO-NUTRICIONAIS SOBRE A METRITE EM VACAS -/- Emanuel Isaque Cordeiro da Silva Departamento de Agropecuária – IFPE Campus Belo Jardim [email protected] ou [email protected] WhatsApp: (82)98143-8399 -/- •__3. METRITE -/- O transtorno caracterizado pela inflamação do útero, devido a causas sépticas ou assépticas que atuam sobre ele, denomina-se genericamente como metrite. As metrites são afecções de grande importância, tanto pela frequência como pela gravidade. As metrites podem ser divididas segundo seu caráter anatômico, como mucosa (catarral), purulenta, hemorrágica, crupal, (...) pútrida e flegmonosa e segundo seu curso, em agudas e crônicas (FRAZER, 2005; GORDON, 1996). Estão associadas às doenças do puerpério. Quando a inflamação é limitada à mucosa é chamada de endometrite; e se ademais interessa a camada muscular denomina-se metrite ou miometrite; se afeta o revestimento peritoneal, perimetrite ou metroperitonite; e se a inflamação se estende ao paramétrio, ou seja, ao tecido conjuntivo pélvico e ligamentos, chama-se parametrite (FÖLDI, et al. 2006). A metrite ocorre em consequência de diversos acidentes que resultam de partos distócicos, após retenção fetal ou secundinas seguidas de putrefação, por arrancamento brutal dos cotilédones; por injeções uterinas irritantes; após o prolapso uterino; tudo o que favorece o desenvolvimento microbiano. Em fêmeas que se inseminam artificialmente sob condições sépticas ou de pobre destreza se produz endometrite seguida com infecundidade passageira, isto se produz como consequência das erosões produzidas pela pistola de inseminação, desassossego geral no procedimento ou por levar o sêmen a maior temperatura que a devida e em lugar inadequado. Algumas situações de origem nutricional se associam em maior ou menor grau com a incidência de metrite, em especial processos de retenção de placenta ou involução uterina de origem nutricional podem levar, de forma indireta, a incidência de metrite. 3.1 Relação energia e proteína Uma das situações de origem nutricional associada à metrite é o excesso de proteína crua na dieta. As vacas necessitam de um adequado fornecimento de proteína. No afã de suprir as necessidades nutricionais e evitar as limitações de aminoácidos, cai-se no erro de fornecer excessos de proteína, trazendo como consequência uma diminuição da eficiência reprodutiva, devido à relação dos altos níveis de proteína na dieta com a falha reprodutiva específica. Um excesso de proteína resulta num aumento da produção de amoníaco e, como consequência, numa maior síntese de ureia pelo fígado (BACH, 2000). Consequentemente, existe um aumento do nível de ureia no sangue, no útero e no muco vaginal. A nível uterino, a ureia parece ter um efeito sobre a função hormonal e depressora da proteção imunitária. O mecanismo específico baseia-se na toxicidade direta da ureia, na perda do balanço energético e na concentração de diaminas de ácido carbônico que favorecem a ampla difusão da ureia em todo o endométrio. O fornecimento de fontes alternativas de nitrogênio na alimentação dos animais vêm ganhando espaço no debate entre os especialista e a ureia é uma dessas fontes. Ela é conhecida como uma fonte de nitrogênio não-proteico (NNP), porém não se destaca tanto pelos inúmeros fatores negativos como a baixa aceitabilidade dos animais ou aos índices de intoxicação pela mesma. O rúmen necessita de um teor de 1% de nitrogênio para manter os mecanismos fisiológicos e a população microbiana, sendo assim, o produtor deve estar atento ao fornecimento desse mineral para seus animais. Especialistas apontam a fórmula de 30 g de ureia por dia para animais de 100 kg, e que essa quantidade nunca pode exceder os 200 g por animal por dia. Esses dados só podem ser postos em prática se as forrageiras existentes na propriedade não conseguirem suprir a exigência de 1% de nitrogênio no animal. Uma fonte vegetal de ótima qualidade e abundante em meios nutricionais e fonte extra de renda é a cana-de-açúcar. Ao nível hormonal a presença de ureia impede a manutenção do gradiente de pH (induzido pela progesterona) que existe entre as células apicais e basais da parede uterina (MARÍN & CÁRDENAS, 1999). Assim, a progesterona não consegue manter o gradiente de pH e aumenta a secreção de PGF2α, que afeta negativamente tanto a sobrevivência como o desenvolvimento embrionário. A nível imunológico, ocorre um efeito negativo devido à elevada concentração de amônio e ureia no sangue, o que diminui a atividade dos linfócitos e impede a defesa celular contra os agentes nocivos provocadores da metrite infecciosa, favorecendo o desenvolvimento microbiano. Para determinar a quantidade e a qualidade da nutrição proteica do animal são utilizados indicadores como a concentração de ureia no sangue e no leite. As proteínas, em geral, possuem inúmeras funções, dentre elas componentes estruturais, funções enzimáticas, funções hormonais, recepção de estímulos hormonais e armazenamento de informações genéticas. Na nutrição animal, as proteínas são divididas entre bruta (PB) e metabolizável (PM), ainda outras, mas o enfoque são essas. Os animais necessitam de níveis distintos de proteínas em suas respectivas fases de vida. Para elucidar melhor, tomemos como exemplo uma vaca nelore de 420 kg no final da gestação necessita, em média, de 389 g/dia de proteína metabolizável e, em média de 581 g/dia de proteína bruta. Os alimentos de origem vegetal (forrageiras) fornecem muito bem e eficazmente teores aceitáveis de proteínas, porém como o elemento mais presente é a fibra, faz-se necessário a suplementação nos animais, e um meio de suprir as necessidades dos mesmo, é optando por farelos de soja que possuem mais de 60% de proteína em sua composição, ou outras fontes alternativas como as farinhas de origem animal como a de sangue, por exemplo. A deficiência de fibra crua desencadeia principalmente uma deficiência de energia no ruminante; pois a partir da fibra formam-se os ácidos graxos voláteis (AGV) que constituem até 60% das fontes energéticas para estes animais. Devido à síntese reduzida de AGV, é muito baixa a concentração destes, são absorvidos pela corrente sanguínea e o animal entra em estado de déficit de precursores glicogênios. Como o consumo de alimento no pós-parto está reduzido, e não há a suficiente disposição de energia (deficiência de AGV principalmente ácido acético, devido a deficiência em fibra crua), o organismo realiza uma mobilização de ácidos graxos para a compensação energética. Os ácidos graxos são levados até acetil-CoA, este é convertido pelo fígado em corpos cetônicos que são utilizados em baixa concentração por alguns tecidos periféricos (cérebro) como fonte de energia, pois os excessos de corpos cetônicos produzem toxicidade. Os excessos de acetil-CoA no fígado podem sofrer condensação e converterem-se em β-hidroxi-β-metil-glutaril-CoA que serve como fonte de mevalonato (precursor do colesterol formado em excesso). Os excessos provocam fígado graxo que gera danos hepáticos, isso deprime a síntese de ácidos graxos para a formação do colesterol que se encontra diretamente implicado na síntese de estrogênios. Após o parto uma deficiência de estrogênio provoca de forma subsequente atonia uterina, retenção de placenta, endometrite puerperal e finalmente metrite. 3.2 Vitaminas Outra causa nutricional que incide na manifestação de metrite, é a vitamina A, que faz parte do grupo de vitaminas lipossolúveis e tem relevância especial na função reprodutiva. Esta exerce sua ação sobre a integridade estrutural e funcional das células epiteliais do organismo animal, atua sobre o crescimento, a reprodução e o desenvolvimento embrionário; mas seu papel principal é atuar como protetora dos epitélios, incluindo o endométrio. Além disso, tem um efeito estabilizador sobre várias membranas celulares e atua regulando a permeabilidade da membrana. A vitamina A, atua como estimuladora dos epitélios da mucosa tubária, uterina e vaginal, aumentando sua resistência contra os agentes infecciosos que produzem problemas que finalizam em metrite, também é necessária para as alterações histológicas que ocorrem na mucosa durante as diferentes fases do ciclo estral. Uma deficiência de vitamina A, pode causar morte embrionária, aborto, bezerros fracos ao nascimento e de forma subsequente uma retenção de placenta, (BACH, 2000) devido a não regulação da filtração de líquidos e gases através das membranas fetais; também dificulta a fecundação, devido à geração de uma atresia ovariana e à degeneração do epitélio germinal. Além disso, são produzidos edemas que ocasionam bezerros mortos ou prematuros (natimortos), o que provoca uma posterior retenção de placenta. Estas retenções provocam metaplasia queratinizam-te, dos epitélios da mucosa uterina-vaginal, o que provoca o aparecimento de metrite. Também, uma deficiência de outras vitaminas provocam o aparecimento de pequenas hemorragias, inchaço vulvar e degeneração epitelial das mucosas, em geral, isto provoca uma endometrite que posteriormente torna-se em metrite devido ao que se afeta a submucosa e a camada muscular do útero. Em relação ao pós-parto precoce, a capacidade de consumo de alimentos (forragem) é limitada, o que conduz, principalmente, a uma deficiência de fibras cruas na ruminação do animal, que conduzirá, em algumas circunstâncias, à predisposição para o desenvolvimento de metrite. Atentos a essas intempéries, o produtor deve estar atento aos requerimento exigidos pelos animais de vitaminas para que possam manter seu funcionamento normal e longe de quaisquer problema ou agente infeccioso ou patógeno. Para tanto, os níveis de vitaminas por categoria animal, deve prezar pelas quantidades conforme demonstrado nas tabelas abaixo: Tabela 1: Exigências de vitaminas por categoria animal em bovinos de corte -/- Categoria Vitamina A (UI/dia) Vitamina E (mg/dia) Vitamina D (UI/dia) Niacina (g/dia) Vacas lactantes 80.000 – 120.000 100 – 1.000 15.000 – 50.000 1 - 2 Vacas secas 75.000 – 125.000 500 – 900 10.000 – 20.000 0 – 1 Fonte: BERCHIELLI et al., 2006. Tabela 2: Exigências de vitaminas em vacas gestantes de corte -/- Vitamina UI/kg de MS A 2.800 D 275 Fonte: BERCHIELLI et al., 2006. Para que se consiga suprir todas essas quantidades requeridas dos animais, em especial, das vacas gestantes para que não venha a ocorrer a incidência de metrite ou outro transtorno reprodutivo, o criador poderá optar pela injeção direta de complexos vitamínicos e minerais mediante os inúmeros fármacos da indústria farmacêutica animal, ou poderá suprir essas necessidades fisiológicas mediante o fornecimento de rações com teores adequados de vitaminas, ou ainda por intermédio de alimentos volumosos que além das vitaminas necessárias fornecem também as fibras. As forrageiras, leguminosas e gramíneas fornecem minerais, fibras e vitaminas; dentre elas as espécies tifton (capim) apresenta cerca de 34,8% de vitamina A, o capim-tanzânia apresenta 24% e a alfafa 23,4%. Por fim, métodos para fornecimento de fibras, vitaminas e/ou minerais não faltam. Apoio -/- Realização •_ _referências bibliográficas -/- BACH, Alex; ESPAÑA, Purina. La reproducción del vacuno lechero: Nutrición y fisiología. XVII Curso de Especialización FEDNA. Purina, España, 2002. BERCHIELLI, Telma Teresinha; PIRES, Alexandre Vaz; OLIVEIRA, SG de. Nutrição de ruminantes. Jaboticabal: funep, 2006. BOLAND, M. P. Efectos nutricionales en la reproducción del ganado. XXXI Jornadas Uruguayas de Buiatría, 2003. DA SILVA, Emanuel Isaque Cordeiro. Reprodução Animal: Fisiologia do Parto e da Lactação Animal. Disponível em:-. Acesso em: Março de 2020. DE LUCA, Leonardo J. Nutrición y fertilidad en el ganado lechero. XXXVI Jornadas Uruguayas de Buiatría, 2008. FÖLDI, J. et al. Bacterial complications of postpartum uterine involution in cattle. Animal reproduction science, v. 96, n. 3-4, p. 265-281, 2006. FRAZER, Grant S. Bovine theriogenology. Veterinary Clinics: Food Animal Practice, v. 21, n. 2, p. xiii-xiv, 2005. GORDON, Ian. Controlled reproduction in farm animals series. Nova Iorque: CAB International, 1996. MARÍN, Andrés Luis Martínez; CÁRDENAS, Juan F. Sánchez. Alimentación y reproducción en vacas lecheras. MG Mundo ganadero, n. 111, p. 48-54, 1999. RÚGELES, Clara. Interrelaciones entre nutrición y fertilidad en bovinos. Revista MVZ Córdoba, p. 24-30, 2001. -/- Emanuel Isaque Cordeiro da Silva Belo Jardim, 29 de março de 2020 . (shrink)

Reseña al libro de María Rosa Palazón Mayoral titulado "La estética en México. Siglo XX. Diálogo entre filósofos". El libro reseñado es de gran importancia al compilar las propuestas teóricas sobre el tema de pensadores tan destacados como Antonio Caso, José Vasconcelos, Alfonso Reyes, Samuel Ramos, Eduardo Nicol, María Zambrano, Ramón Xirau, Adolfo Sánchez Vázquez, Joaquín Sánchez Mcgrégor, Bolívar Echeverría, Néstor García Canclini, María Noël Lapoujade, Ana María Martínez de la Escalera, Silvia Durán Payán y muchos otros.

Internal coherence is of great importance for how we think about appreciating objects of aesthetic worth. A disagreement between what we judge to be worthy and what we affectively favor can prevent us from properly grasping its value. However, it is also assumed in the aesthetic domain that our taste changes over time, jeopardising such coherence constraint. These changes can lead to a mismatch between new aesthetic judgments and old aesthetic preferences. This chapter explores a number of issues that emerge (...) from this tension. Using Taylor Swift’s re-recording as a case study, I will explore the relation between fan loyalty and personal authenticity, as well as the role of biographical taste in the reception of these newly recorded albums among Swift’s long-time fanbase. (shrink)

This paper analyzes the concept of a spirituality without religion. I argue that spirituality is best understood as a specific attitude that a subject has towards the totality of existence, characterized by a certain emotional, evaluative and noetic quality. The spiritual attitude typically involves a shift in the way a subject interprets their relation to themselves and to the whole of reality. Understood this way, religious and non-religious spiritualities are varieties of the same core phenomenon. Religious beliefs are compatible with, (...) but not necessary for spiritual attitudes. (shrink)

Recent years have seen a heightened focus on the study of minimal forms of awareness during sleep to advance the study of consciousness and understand what makes a state conscious. This focus draws on an increased interest in anecdotical descriptions made by classic Indian philosophical traditions about unusual forms of awareness during sleep. For instance, in the so-called state of witnessing-sleep or luminosity sleep, one is said to reach a state that goes beyond ordinary dreaming and abide in a state (...) of just awareness, a state in which one is not aware of anything else other than one’s own awareness. Moreover, for these traditions, this state is taken to be the essence or background of consciousness. Reports on such a state opens the door to exciting new lines of research in the study of consciousness, such as inquiry into the so-called “objectless” awareness during sleep—states of awareness that lack an ordinary object of awareness. In this two-staged research project, we attempted to find the phenomenological blueprints of such forms of awareness during sleep in 18 participants by conducting phenomenological interviews, informed by a novel tool in qualitative research, the micro-phenomenological interview (MPI) method. Following a phenomenological analysis, we isolated a similar phase across 12 reported experiences labelled as ‘nothingness phase’ since it described what participants took to be an experience of ‘nothingness’. his common phase was characterised by minimal sense of self—a bodiless self, yet experienced as being ‘somewhere’—, the presence of non-modal sensations, relatively pleasant emotions, an absence of visual experience, wide and unfocused attention, and an awareness of the state as it unfolded. (shrink)

Sebastian Schmidt (Zürich) fragt in seinem Beitrag »Wie vernünftig sind Verschwörungstheoretiker?«, wie es um die Vernunft derjenigen steht, die einer Verschwörungstheorie über die Corona-Pandemie anhängen. Im Umgang mit Corona scheint sich zu bestätigen, was die Psychologie seit Jahrzehnten lehrt: Menschen unterliegen in ihrem Denken kognitiven Fehlern und Verzerrungen. Doch ist verschwörungstheoretisches Denken, das solche Fehler ebenfalls begeht, deshalb irrational? Schmidt warnt davor, einander zu leichtfertig als irrational zu betrachten, und verweist auf die wichtige Rolle, die intellektuelles Vertrauen in Wissensgemeinschaften spielt. (...) Am Beispiel des sogenannten Bestätigungsfehlers führt er aus, dass Menschen, die ihre Überzeugungen nicht fortwährend kritisch prüfen, in diesem Verhalten durchaus rational sein können. (shrink)

This paper argues for the normative significance of attention. Attention plays an important role when describing an individual’s mind and agency, and in explaining many central facts about that individual. In addition, many in the public want answers and guidance with regard to normative questions about attention. Given that attention is both descriptively central and the public cares about normative guidance with regard to it, attention should be central also in normative philosophy. We need an ethics of attention: a field (...) of study of which normative pressures, if any, govern attention. Like the ethics of belief, the ethics of attention will connect those normative questions to issues regarding the nature of attention, i.e. to what is subject to such normative pressures. Philosophers should develop an ethics of attention that helps to provide normative guidance and that is commensurate in its richness to the descriptive significance of attention. The second half of the paper sketches a framework that may help us to get started at developing the ethics of attention. (shrink)

Linguistics of Saying is to be analyzed in the speech act conceived as an act of knowing. The speaking, saying and knowing subject, based on contexts and the principles of congruency and trust in the speech of other speakers, will create meanings and interpret the sense of utterances supplying the deficiencies of language by means of the intellective operations mentally executed in the act of speech. In the intellective operations you can see three steps or processes: first the starting point, (...) intuition or aísthesis; second, the process of abstraction; and third, the inverse: the process of determination or fixing the construct created. (shrink)

Linguistics of saying studies language in its birth. Language is the mental activity executed by speaking subjects. Linguistics of saying consists in analyzing speech acts as the result of an act of knowing. Speaking subjects speak because they have something to say. Tthey say because they define themselves before the circumstance they are in. And this is possible because they are able to know. Speaking, then, is speaking, saying and knowing. In this sense there is a progressive determination. Knowing makes (...) possible saying, and saying determines speaking, or, in other words: speaking involves saying and knowing, and saying involves knowing. The problem thus is to determine the meaningful intentional purpose of the individual speaker to say something in every speech act. (shrink)

It has been argued that rationality consists in responding correctly to reasons. Recent defenses of the normativity of rationality assume that this implies that we always ought to be rational. However, this follows only if the reasons rationality requires us to correctly respond to are normative reasons. Recent meta-epistemological contributions have questioned whether epistemic reasons are normative. If they were right, then epistemic rationality wouldn’t provide us with normative reasons independently of wrong-kind reasons to be epistemically rational. This paper spells (...) out this neglected challenge for the normativity of epistemic rationality by connecting the two bodies of literature. Moreover, it generalizes this challenge to the rationality of desire, intention, and emotion. The upshot is that we can only answer the normative question about rationality if we debate about blame and accountability for holding different kinds of irrational attitudes, as well as about the sources of mental normativity. (shrink)

How can we be responsible for our attitudes if we cannot normally choose what we believe, desire, feel, and intend? This problem has received much attention during the last decades, both in epistemology and ethics. Yet its connections to discussions about reasons and rationality have been largely overlooked. This book develops the foundations of an ethics of mind by investigating the responsibility that is presupposed by the requirements of rationality that govern our attitudes. It has five main goals. First, it (...) reinterprets the problem of responsibility for attitudes as a problem about the normativity of rationality. Second, it connects substantive and structural rationality by drawing on debates about responsibility. Third, it supports recent accounts of the normativity of rationality by explicitly defending the view that epistemic reasons and other ‘right-kind’ reasons are genuine normative reasons. Fourth, it breaks the stalemate between rationalist and voluntarist accounts of mental responsibility by proposing a hybrid view. Finally, it argues that irrationality can warrant moral blame, thus revealing an unnoticed normative force of rational requirements. Length of manuscript: 85,000 words. (shrink)

Language is nothing but human subjects in as much as they speak, say and know. Language is something coming from the inside of the speaking subject manifest in the intentional meaningful purpose of the individual speaker. A language, on the contrary, is something coming from the outside, from the speech community, something offered to the speaking subject from the tradition in the technique of speaking. The speech act is the performance of an intuition by the subject, both individual and social.

I argue that the problem of responsibility for attitudes is best understood as a puzzle about how we are responsible for responding to our object-given reasons for attitudes – i.e., how we are responsible for being (ir)rational. The problem can be solved, I propose, by understanding the normative force of reasons for attitudes in terms of blameworthiness. I present a puzzle about the existence of epistemic and mental blame which poses a challenge for the very idea of reasons for attitudes. (...) We are left with three options: denying that there are any reasons for attitudes, opting for pragmatism about reasons for attitudes, or arguing that the challenge rests on a misunderstanding of the normative force of reasons for attitudes. I finally suggest a version of the last strategy. We can understand the normative force of reasons for attitudes, and thereby solve the problem of mental responsibility, by acknowledging that the way we blame each other for failing to respond correctly to our reasons for attitudes is different from the way we blame each other when one failed to respond correctly to reasons for action. (shrink)

In this review, we present a rigorous construction of an algebraic method for quantum unstable states, also called Gamow states. A traditional picture associates these states to vectors states called Gamow vectors. However, this has some difficulties. In particular, there is no consistent definition of mean values of observables on Gamow vectors. In this work, we present Gamow states as functionals on algebras in a consistent way. We show that Gamow states are not pure states, in spite of their representation (...) as Gamow vectors. We propose a possible way out to the construction of averages of observables on Gamow states. The formalism is intended to be presented with sufficient mathematical rigor. (shrink)

It has been argued that the explanation of self-control requires positing special motivational powers. Some think that we need will-power as an irreducible mental faculty; others that we need to think of the active self as a dedicated and depletable pool of psychic energy or – in today more respectable terminology – mental resources; finally, there is the idea that self-control requires postulating a deep division between reason and passion – a deliberative and an emotional motivational system. This essay argues (...) that no such special motivational powers are necessary. Yet, at the same time, self-control does powerfully illustrate the importance of a feature of the mind. What it illustrates, I argue, is the importance of the mental activity of attention in the control of all action. It is by appeal to this mental activity that we can dispense with special motivational powers. If we think of Humeanism as the view that there is fundamentally only one kind of motivational system and that all action is based in that system, then this essay contributes to a defense of Humeanism. On the other hand, the essay also shows that any model of agency in terms of only beliefs and desires, motivational and representational states, or preferences and credences is incomplete. A different conception of Humeanism as the view that every mental state is either motivational, representational, or a combination of them, is false. (shrink)

Imperativism is the view that the phenomenal character of the affective component of pains, orgasms, and pleasant or unpleasant sensory experience depends on their imperative intentional content. In this paper I canvass an imperativist treatment of pains as reason-conferring states.

Abstract: Introspection reveals that one is frequently conscious of some form of inner speech, which may appear either in a condensed or expanded form. It has been claimed that this speech reflects the way in which language is involved in conscious thought, fulfilling a number of cognitive functions. We criticize three theories that address this issue: Bermúdez’s view of language as a generator of second-order thoughts, Prinz’s development of Jackendoff’s intermediate-level theory of consciousness, and Carruthers’s theory of inner speech as (...) a rehearsal of action-schemata. We contend they have problems to account for those cases in which inner speech is fragmentary, and for the difference with those instances in which it appears as more sentence-like. In addition, we present verbal overshadowing as a phenomenon that neither of them can easily explain. Finally, we propose an account in which inner speech is fundamentally silent outer speech and argue that it is more explanatory than the alternatives. (shrink)

It is commonly held that Bradley’s regress has a solution within a trope ontology. This seems to happen when a bundle is understood as constituted by non-transferable tropes. It also seems to happen when a bundle is understood as constituted by transferable tropes related by a relational trope of compresence whose existence specifically depends on those relata. In this article I demonstrate that these proposals fail in addressing the essential question that underlies the regress, incurring in a question-begging response already (...) anticipated by Bradley. (shrink)

I argue first that attention is a (maybe the) paradigmatic case of an object-directed, non-propositional intentional mental episode. In addition attention cannot be reduced to any other (propositional or non-propositional) mental episodes. Yet, second, attention is not a non-propositional mental attitude. It might appear puzzling how one could hold both of these claims. I show how to combine them, and how that combination shows how propositionality and non-propositionality can co-exist in a mental life. The crucial move is one away from (...) an atomistic, building block picture to a more holistic, structural picture. (shrink)

The traditional approach in cognitive sciences holds that cognition is a matter of manipulating abstract symbols followingcertain rules. According to this view, the body is merely an input/output device, which allows the computationalsystem—the brain—to acquire new input data by means of the senses and to act in the environment following its com-mands. In opposition to this classical view, defenders of embodied cognition (EC) stress the relevance of the body inwhich the cognitive agent is embedded in their explanation of cognitive processes. (...) From a representationalist frameworkregarding our conscious experience, in this article, I will offer a novel argument in favor of EC and show that cognitionconstitutively—and no merely causally—depends upon body activity beyond that in the brain. In particular, I will arguethat in order to solve the problem derived from the empirical evidence in favor of the possibility of shifted spectrum,representationalist should endorse the view that experiences concern its subject: the content of experience isde se.Ishow that this claim perfectly matches the phenomenological observation and helps explaining the subjective characterof the experience. Furthermore, I argue that entertaining this kind of representation constitutively depends on bodilyactivity. Consequently, insofar as cognition depends on consciousness, it is embodied. (shrink)

This chapter locates our overall approach within the dialectic of contemporary philosophical debates and provides an overall framework for discussion. First, I introduce the problem of mental normativity. I show how this problem poses a prima facie threat to the common assumption in epistemology and metaethics that beliefs and other attitudes are governed by robust normative requirements. Secondly, I motivate philosophical inquiry about an ethics of mind by tracing this field back to recent debates in the ethics of belief. I (...) characterize the ethics of mind as being concerned with two main questions: 1. How can we be responsible for our attitudes? 2. What attitudes should we have? Finally, I give an overview over the structure of the book and summarize the chapters. (shrink)

El autor del artículo edita y estudia una inscripción funeraria inédita de época helenística encontrada en Aptera (Creta) por la arqueóloga griega V. Ninioú-Kindelí. El texto de la inscripción dice así: A) Σώσανδρος | Βίτωνος. B) Ἀμφιμήδης | Σωσάνδρω.

Kistler, Sebastian/Puzio, Anna/Riedl, Anna-Maria/Veith (Hrsg.) Digitale Transformationen der Gesellschaft Sozialethische Perspektiven auf den technologischen Wandel -/- Die Digitalisierung bewirkt Transformationsprozesse, die die Formen unseres Zusammenlebens grundlegend verändern. Dies betrifft nicht nur die Art, wie wir leben, Partner suchen, arbeiten, wohnen, konsumieren oder uns selbst präsentieren – auch die gesellschaftlichen Lebensbereiche wie Politik, Bildung, Wirtschaft und Gesundheit befinden sich in einem digitalen Wandel. Mit diesen Veränderungsprozessen sind nicht nur Hoffnungen, sondern auch Ängste verbunden, die die Ambivalenzen der Digitalisierung zum Ausdruck bringen. (...) Die Komplexität und die Wirkungstiefe digitaler Transformationsprozesse werfen Fragen nach deren Steuerbarkeit, nach ihren Zwecken bzw. nach möglichen Orientierungen auf: • Welche technologischen Entwicklungen müssen reguliert werden? • Wie kann eine entsprechende Legitimation erfolgen? • Wer übernimmt Verantwortung? • Wie und nach welchen Kriterien sind ethische Bewertungen vorzunehmen? • Und nicht zuletzt: Gibt es Grenzen für diese Entwicklungen oder haben die Möglichkeiten des Machbaren die ethischen Fragen längst überholt und erledigt? -/- Die Texte des Sammelbandes nähern sich den digitalen Transformationen aus verschiedenen Perspektiven. Anhand unterschiedlicher Zugänge werden die Themenfelder „Digitalisierung und Gesellschaft“, „Körper und Technologie“ sowie „Digitalisierung und Demokratie“ entfaltet. Darüber hinaus werden die Konsequenzen für die Pflegearbeit und für den Umgang mit modernen Waffentechnologien als anwendungsbezogene Konkretionen diskutiert. (shrink)

Wenn wir Peter Singers Konklusion in „Famine, Affluence, and Morality“ (1972) akzeptieren, dann handeln wir im Alltag sehr viel häufiger falsch, als es uns lieb ist. Anstatt über die Natur von Altruismus zu philosophieren, könnten wir auch möglichst effektiv Hungerleidenden helfen. Ist es daher etwa moralisch verwerflich – weil egoistisch – zu philosophieren? In diesem Beitrag beleuchte ich die Gründe, die wir haben, Philosophie in den Mittelpunkt unseres Lebens zu stellen. Ich argumentiere, dass Philosophieren – genauso wie die Beschäftigung mit (...) Kunst und Wissenschaft – nur dann gerechtfertigt sein kann, wenn es praktische Gründe jenseits von Gründen des persönlichen Nutzens und der Moral gibt. Dabei schliesse ich an Susan Wolfs Idee an, dass diese Tätigkeiten ein Leben mit Sinn erfüllen können. Es bleibt jedoch offen, ob in einer Welt voller Ungerechtigkeit die moralischen Gründe gegen das Philosophieren (und für andere Handlungsoptionen) nicht dennoch überwiegen. (shrink)

Discussions regarding which norms, if any, govern our practices of forming, maintaining and relinquishing beliefs have come to be collected under the label “The ethics of belief”. Included in the ethics of belief are debates about how those normative issues relate to the nature of belief, whether belief formation is, for example, ever voluntary. The present talk concerns an analogous set of questions regarding our practices of attention. “The ethics of attention” thus concerns the discussion of which norms, if any, (...) govern our practices of attention: what norms govern what we should attend to, how we should engage our capacity for attention, when we should begin and when we should stop to pay attention to something? Like the ethics of belief, the ethics of attention will connect those normative questions to issues regarding the nature of attention, what may or may not be subject to such normative pressures. Compared with rich, complex, and systematic investigation of the ethics of belief, the study of the ethics of attention is more or less undeveloped. This paper aims to begin to change that. Specifically, it shows that attention is an appropriate target for serious normative investigation and then classifies potential norms of attention along three dimensions: whether they are manner or object based, instrumental or non-instrumental, and whether its source is moral, prudential or epistemic. -/- [EDIT. 10. November 2021: this paper has been superseded by a new version. Please cite that in turn]. (shrink)

Recent psychological research shows that attention affects appearances. An “attended item looks bigger, faster, earlier, more saturated, stripier.” (Block 2010, p. 41). What is the significance of these findings? Ned Block has argued that they undermine representationism, roughly the view that the phenomenal character of perception is determined by its representational content. My first goal in this paper is to show that Block’s argument has the structure of a Problem of Arbitrary Phenomenal Variation and that it improves on other instances (...) of arguments of the same form along several dimensions (most prominently, these are arguments based on the possibility of spectral inversion). My second goal is to consider responses to Block’s version of the arbitrariness problem. I will show that most of them have serious drawbacks. Overall, the best view is to accept that attention may distort perception, sacrificing veridicality for usability. I end my discussion by showing how to develop that view. (shrink)

Godfrey-Smith advocates for linking deception in sender-receiver games to the existence of undermining signals. I present games in which deceptive signals can be arbitrarily frequent, without this undermining information transfer between sender and receiver.

ABSTRACT The difference between perception and cognition seems introspectively obvious in many cases. Perceiving and thinking have also been assigned quite different roles, in epistemology, in theories of reference and of mental content, in philosophy of psychology, and elsewhere. Yet what is the nature of the distinction? In what way, or ways, do perception and cognition differ? The paper reviews recent work on these questions. Four main respects in which perception and cognition have been held to differ are discussed. First, (...) their phenomenal character, such as the often-remarked vivacity or immediacy of perception. Second, the way in which they represent the world, e.g. the non-propositional nature of the contents, or non-discursive character of the vehicles, that have been held to characterise perceptual representation. Third, their place in cognitive architecture, i.e., roughly, in the information-flow of the mind, such as their alleged (non-)modularity. Fourth, their mind-world relations, e.g. the way in which perceptions seem to be tightly causally linked with distal or proximal stimuli. Against this background, we distinguish some main options for an account of the perception/cognition distinction, in particular concerning whether there is one, several, or no interesting and principled distinction(s) to be drawn here. (shrink)

El trabajo explora críticamente la idea de una justificación débil o pen última de la moral enmarcándola en el conjunto de la filosofía de Tugendhat, reordenan do sus escritos éticos y discriminando los diversos aspectos que incluye dicha idea. Entre ellos, revisa el concepto formal de moral, ligado a los sentimientos, antes de centrarse en el punto crucial: la fundamentación de la ética moderna. Aquí se distingue, por un lado, la justificación comparativa de un contractualismo igualitario frente a otras alternativas (...) teóricas y, por otro, los motivos que pueden llevar a un individuo autónomo a entenderse en términos morales. (shrink)

In the first part of the paper, I present a framework for the description and evaluation of teleosemantic theories of intentionality, and use it to argue that several different objections to these theories (the various indeterminacy and adequacy problems) are, in a certain precise sense, manifestations of the same underlying issue. I then use the framework to show that Millikan's biosemantics, her own recent declarations to the contrary notwithtanding, presents indeterminacy. In the second part, I develop a novel teleosemantic proposal (...) which makes progress in the treatment of this family of problems. I describe a procedure to derive a (unique) homeostatic property cluster [HPC] from facts having to do with the properties that a certain indicator relied on, in the events leading to its fixation in a certain population. This HPC is the one that should figure in the content attribution to the indicator in question. (shrink)

It is astonishing that we humans are able to have, act on and express moral beliefs. This dissertation aims to provide a better philosophical understanding of why and how this is possible especially when we assume metaethical expressivism. Metaethical expressivism is the combination of expressivism and noncognitivism. Expressivism is the view that the meaning of a sentence is explained by the mental state it is conventionally used to express. Noncognitivism is the view that the mental state expressed by a moral (...) sentence is a noncognitive, desire-like state. The central question of this dissertation is this: "How can metaethical expressivists explain that we are able to express moral beliefs?" The shortest answer this dissertation will give is the following: "by becoming `dispositional expressivists´." Dispositional expressivists hold that moral beliefs are dispositions to be in certain mental states that resemble desires. More precisely, a central thesis of this study is that to hold a moral belief is to be disposed to be in a desire-like, noncognitive state where this state has some specific structure. This dissertation arrives at and justifies this thesis by making a number of steps. It starts with preparing the ground by developing a general theory of what it is for a sentence to express a mental state. Roughly, this theory states that for a sentence to express a mental state is for that sentence to be conventionally used to perform a speech act which counts as sincere only if the user or speaker is in that mental state. This theory of expressing satisfies all the constraints that must be satisfied for it to be compatible with the purposes of metaethical expressivism. The next step is to provide a solution to the most notorious semantic problem confronting metaethical expressivism, the problem of explaining how sentences containing moral words can have compositional meaning and stand in logical relations also known as the Frege-Geach or embedding problem. Building on the research of Mark Schroeder, a new expressivist semantics, called `Attitude Semantics´, will be developed for a first-order language. The motivating idea underlying attitude semantics is that expressivists can avoid the problematic feature of so-called `biforcation´ if they treat the structures of the mental states expressed by moral sentences as well as that expressed by non-moral sentences as being isomorphic. In order to give those structures a philosophically interesting interpretation, it will be suggested that we treat sentences as expressing dispositional states. As a toy example we will treat the sentence `murder is wrong´ as expressing the disposition to be for blaming for murder. After dealing with the Frege-Geach problem, I turn to the metaethical expressivists' project of quasi-realism. Two major goals of this project are to explain how moral sentence can be truth-apt and how the states expressed by them can be regarded as moral beliefs. In order to establish those goals I critically examine a number of theories of truth-aptness by providing counterexamples to them. I then present my own theory which says that a sentence is truth-apt iff and because there is a conventional way to use it to express a belief. What is new about this theory is that it treats expressing a belief as being explanatorily more basic than being truth-apt. Belief, according to this theory, explains truth-aptness, not vice versa. This has the important consequence that it shows that what I call the `orthodox strategy´ of quasi-realists is mistaken and needs to be inverted: expressivists must `earn the right´ to moral belief before they can establish that moral sentences are truth-apt, and not the other way round. The second part of this dissertation is then concerned with the question of what it is to hold a moral belief and how they can figure in rational reasoning. In short: it is concerned with earning the right to moral belief. After discussing the major problems confronting a noncognitivist theory of belief, most importantly what I call the `tightrope problem´, I argue for a dispositional form of noncognitivism about moral belief that combines elements from Eric Schwitzgebel's dispositionalism about belief and Sebastian Köhler's `conceptual role expressivism´. This dispositional noncognitivism perfectly matches and justifies the dispositionalist interpretation of the expressivist semantics developed before. In order to fully earn the right to moral belief, however, metaethical expressivists must also deal with several epistemological objections concerning the rationality of moral belief. The first objection I deal with comes from Derek Baker and is directed against Mark Schroeder's specific development of expressivism. I deal with this objection because my own theory bears close resemblance to Schroeder's theory and so it might be worried that it confronts the same issues. Fortunately, we will see that Baker's objection rest on a number of mistaken assumptions and so neither applies to Schroeder's expressivism nor to the version which I defend in this study. The other epistemological objection to metaethical expressivism I deal with is Cian Dorr's famous wishful-thinking objection. In contrast to previous replies to this objection I attack it by directly questioning the central assumption on which it rests, namely that reasoners can never be justified in basing a factual belief on a desire-like state. I argue that this is false, and that under certain conditions reasoning from desire-like mental states to factual beliefs is justified. My argument shows that even if holding a moral belief is being in a desire-like noncognitive state, basing factual belief on a moral belief can give one an epistemic reason for the factual belief. Hence, even if moral thoughts are wishes, moral thinking is not wishful thinking. I take my arguments to earn the dispositional expressivist the right to moral belief. By the previously defended theory of truth-aptness in terms of belief, this allows the dispositional expressivists to conclude that moral sentences are also truth-apt. This finishes the quasi-realist project of this dissertation. In the last part of this dissertation I switch gears and present two unnoted problems for metaethical expressivists having to do with explaining moral motivation. Both arguments are surprisingly simple. The first one is this: if motivation requires a belief as well as a desire (Humeanism), and moral judgments motivate by themselves (internalism), then moral judgments cannot be desires only. If this argument is sound, it shows that the famous `motivation argument´ not only entails the falsity of cognitivism, but also the falsity of noncognitivism. The second argument is the following: moral judgments when combined with suitable external desires motivate to act (externalism), but if motivation requires belief as well as desire (Humeanism), then moral judgments cannot be desires only. I discuss several ways in which noncognitivists might want to deal with those problems, but leave it as an open question whether those solutions will ultimately be viable. Overall, this dissertation makes serious contributions to the research program of metaethical expressivism. It makes proposals for how to solve a number of notorious problems, such as the Frege-Geach problem in semantics and the wishful-thinking problem in epistemology. Besides this, however, it also raises two new problems for metaethical expressivism in the philosophy of action. For those reasons this dissertation will be of interest for anyone who wants to defend or criticize expressivism in metaethics, and more generally, anyone who wants to better understand our astonishing ability to express moral beliefs. (shrink)