Objective: To measure the stability of life-sustaining treatment preferences amongst older people and analyse the factors that influence stability. Design: Longitudinal cohort study. Setting: Primary care centres, Granada (Spain). Eighty-five persons age 65 years or older. Participants filled out a questionnaire with six contexts of illness (LSPQ-e). They had to decide whether or not to receive treatment. Participants completed the questionnaire at baseline and 18 months later. Results: 86 percent of the patients did not change preferences. Sex, age, marital status, (...) hospitalisation, and self-perception of health and pain did not affect preferences. Morbidity and the death of a relative did. Conclusion: Stability of preferences of older persons in relation to end-of-life decisions seems to be more probable than instability. Some factors, such as the death of a relative or the increase in morbidity, can change preferences. These findings have implications for advance directives (ADs) and advance care planning. (shrink)

In Lukács: Praxis and the Absolute, Daniel Andrés López reassembles Lukács’s philosophy of praxis on a Hegelian basis, as a conceptual-historical totality, both defending him and proposing an unprecedented, immanent critique that raises problems for Marxian philosophy as a whole.

This book tells the story of the Scientific Buddha, "born" in Europe in the 1800s but commonly confused with the Buddha born in India 2,500 years ago. The Scientific Buddha was sent into battle against Christian missionaries, who were proclaiming across Asia that Buddhism was a form of superstition. He proved the missionaries wrong, teaching a dharma that was in harmony with modern science. And so his influence continues. Today his teaching of "mindfulness" is heralded as the cure for all (...) manner of maladies, from depression to high blood pressure.In this potent critique, a well-known chronicler of the West's encounter with Buddhism demonstrates how the Scientific Buddha's teachings deviate in crucial ways from those of the far older Buddha of ancient India. Donald Lopez shows that the Western focus on the Scientific Buddha threatens to bleach Buddhism of its vibrancy, complexity, and power, even as the superficial focus on "mindfulness" turns Buddhism into merely the latest self-help movement. The Scientific Buddha has served his purpose, Lopez argues. It is now time for him to pass into nirvana. This is not to say, however, that the teachings of the ancient Buddha must be dismissed as mere cultural artifacts. They continue to present a meaningful challenge, even to our modern world. (shrink)

Background: The castor bean is a large grassy or semi-wooden shrub or small tree. Any part of the castor plant parts can suffering from a disease that weakens the ability to grow and eliminates its production. Therefore, in this paper will identify the pests and diseases present in castor culture and detect the symptoms in each disease. Also images is showing the symptom form in this disease. Objectives: The main objective of this expert system is to obtain appropriate diagnosis of (...) the disease. Methods: In this paper, the expert system is designed for the ability of agricultural engineers to detect and diagnose disease of castor like as: seeding blight, alternaria blight, cercospora leaf spot, powdery mildew and wilt. This system presents the disease symptoms, survival and spread, favorable conditions and image for each disease. Clips and Delphi expert system languages are used for designing and implementing the proposed expert system. Results: The expert system in the diagnosis of castor diseases was assessed by farmers and agricultural engineers and they were satisfied and accepted with its quality of performance. Conclusions: The expert system is easy for farmers and people have experience in the plant of castor to detect and diagnosis the symptoms that may face this plant from several disease. (shrink)

Shows the relevance of Schiller’s thought for contemporary philosophy, particularly aesthetics, ethics, and politics. This book seeks to draw attention to Friedrich Schiller (1759–1805) as a philosophical thinker in his own right. For too long, his philosophical contribution has been neglected in favor of his much-deserved reputation as a political playwright. The essays in this collection make two arguments. First, Schiller presents a robust philosophical program that can be favorably compared to those of his age, including Rousseau, Kant, Schelling, and (...) Hegel, and he proves to be their equal in his thinking on morality, aesthetics, and politics. Second, Schiller can also guide us in our more contemporary philosophical concerns and approaches, such as phenomenology, hermeneutics, aesthetics, and politics. Here, Schiller instructs us in our engagement with figures such as Walter Benjamin, Michel Foucault, Jacques Rancière, Roberto Esposito, and others. María del Rosario Acosta López is Associate Professor of Philosophy at DePaul University. She has published several books, including La tragedia como conjuro: el problema de lo sublime en Friedrich Schiller. Jeffrey L. Powell is Professor of Philosophy at Marshall University and the editor of Heidegger and Language. (shrink)

The study assessed the role of childhood religiosity in adult religiosity and learning motivation in university participants. Participants were 338 university students (mean age = 20.42, SD = 1.53, 47% men) selected from Islamic (50%) and general universities (50%). The findings showed that participants from Islamic university compared to those from general universities scored higher on religious altruism among religiosity outcomes and on self-efficacy and active learning strategies among learning motivation outcomes. The hypothesized associations between childhood religiosity, religious altruism, religious (...) practice, and specific learning motivation outcomes were significant. Childhood religiosity predicted two learning motivation outcomes, self-efficacy and active learning strategies, and only religious altruism in the presence of religious practice mediated these associations. In addition, university status moderated these mediated associations with stronger indirect effects for participants from Islamic universities compared to those from general universities. (shrink)

In most domains of human life, we are willing to accept that there are experts with greater knowledge and competencies that distinguish them from non-experts or laypeople. Despite this fact, the very recognition of expertise curiously becomes more controversial in the case of “moral experts”. Do moral experts exist? And, if they indeed do, are there ethical reasons for us to follow their advice? Likewise, can emerging technological developments broaden our very concept of moral expertise? In this article, we begin (...) by arguing that the objections that have tried to deny the existence (and convenience) of moral expertise are unsatisfactory. After that, we show that people have ethical reasons to ask for a piece of moral advice in daily life situations. Then, we argue that some Artificial Intelligence (AI) systems can play an increasing role in human morality by becoming moral experts. Some AI-based moral assistants can qualify as artificial moral experts and we would have good ethical reasons to use them. (shrink)

Consensual homicide remains a crime in jurisdictions where active voluntary euthanasia has been legalized. At the same time, both jurisdictions, in which euthanasia is legal and those in which it is not, recognize that all patients (whether severely ill or not) have the right to refuse or withdraw medical treatment (including life-saving treatment). In this paper, I focus on the tensions between these three norms (the permission of active euthanasia, the permission to reject life-saving treatment, and the prohibition of consensual (...) homicide), assuming a justification of euthanasia based on the right to (personal) autonomy. I argue that the best way to provide a coherent account of these norms is to claim that patients have two distinct rights: the right to autonomy and the right to bodily integrity. This solution has some relevant implications for the discussion of the legalization of active euthanasia. (shrink)

When travelling to a new city, we acquire knowledge about its physical terrain, directions, historical facts and aesthetic features. Engaging in tourism practices, such as guided walking tours, provides experiences of a city that are necessarily mediated and partial. This has led scholars in tourism studies, and more recently in philosophy, to question the epistemological value of city tours, critiquingthem as passive, lacking in autonomous agency, and providing misrepresentative experiences of the city. In response, we argue that the mediated and (...) partial knowledge of a city acquired through city tours is not epistemologically disvaluable. Although city tours involve the transmission of testimonial knowledge, this does not necessarily render tourists as passive and non-autonomous. Instead,tourists have the potential to participate in the generation of their knowledge actively. Moreover, we argue that city tours also provide a tourist with valuable ‘objectual’ knowledge of a city, whichhas the potential to be first-personal and active, and does not necessarily misrepresent the city’s identity. This type of knowledge is valuable both for tourists as credible epistemic agents, and for the city itself, as the knowledge generated by the tour can facilitate an accurate representation of the city and promote social transformation. We conclude by highlighting four further epistemic and ethical implications of our argument. (shrink)

Critical studies in higher education often embrace the ideas of the slowness movement to address time pressure. However, this desirable horizon presents some limitations. On the one hand, by emphasizing solutions at the individual level, boosting slowness may promote tactics incapable of producing changes to the underlying structural dynamics of time pressure. On the other hand, approaches based on slowness may also inadvertently foster a form of ethical paternalism within the context of ethical pluralism by prescribing substantive models of practice (...) ultimately based on ‘do this quickly or do it slowly.’ This theoretical research moves away from the temporal paradigm to that of the way of relating. Building upon the ethical concept of resonance, the approach focuses on a formal critique of the current socioeconomic and ethical dynamics of social acceleration, growth, and innovation that can contribute to projecting non-alienated relationships in higher education. (shrink)

In The Piano Tuner of EarthQuakes, the Quay Brothers' second feature, the sensual form and the meta-artistic content are truly interweaved, and the siblings' staple animated materials become part of the theme itself. Using Michel Serres's argument in Les cinq sens, I address the relationship between the Quays intermedial animation and the way the art forms of music, painting, theatre and sculpture are used to captivate the film viewer's sensorium in the same way that some of the characters are fascinated (...) by the evil Droz, a scientist and failed composer who manipulates machines and people alike, among them Felisberto, a meek piano tuner with the ability to stir the natural elements. I further proceed to posit the entire film as an intended allegory of animation on the Quays part. Their haptic construction of a three-dimensional world which they control artistically is replicated in the film in Droz's and Felisberto's activities vis-à-vis Malvina van Stille, an abducted opera diva who is kept in a suspended animation state and several hydraulic automata with musical resounding properties, some of them made up of an uncanny assortment of body parts. The artificial life of these creatures is contrasted, in two ways, with their physical reality as beings that exist in the world: first, via Serres's sensorial strategy to transform a body into a conscious entity, an embodiment I call 'Corpo-Reality', and second, by resorting to Deleuze and Guattari's theory of the body without organs in its advocacy of 'hard' nature and the rejection of a rigid assortment of body parts. The paradoxical organic objectivity of the 'marionettized' Malvina is pitted against the seemingly subjective doings of the mechanical automata, especially an android woodcutter. However, just as in the story things are not what they seem, and the automata actually reflect the 'real' world of Felisberto's tuning of them, so the film itself can be a 'crystal-image', offering itself to the senses of the spectator. (shrink)

Después de una visión general del Gorgias de Platón, se hace una presentación del realismodel personaje Calicles y la respuesta de Sócrates, así como de las tesis centrales sobre la justicia en el texto. Posteriormente se sintetizan algunas de los elementos nucleares de la ética de la investigación que compete a los comités de regulación de los estudios clínicos, poniendo énfasis en los vacíos que dejan ver desde la perspectiva filosófica, a la luz del propio texto platónico, y los aportes (...) que este último podría ofrecer, sobre todo desde perspectiva de la prudencia y la equidad griegas.After an overview of Plato’s Gorgias a presentation of Callicles’ realism and the response of Socrates is made, as well as the main theses on justice in the text. Then some of the main elements of research ethics concerning regulation committees of clinical studies is synthesized, pointing out the gaps that appear there from a philosophical perspective, in the light of the platonic text and the contributions that this text can make, in particular from the perspective of Greek prudence and equity. (shrink)

We conducted three studies aimed at showing that one-to-one translations between emotion terms might be comparing independent or barely overlapping categories of emotional experience. In Study 1 we found that the speakers' most accessible features of two supposedly equivalent emotions terms (shame and vergüenza) were very different. In Study 2, American and Spanish speakers' typicality ratings of 25 out of 29 constitutive features of “shame” or “vergüenza” were significantly different. In Study 3, these important differences in the content and internal (...) structure of “shame” and “vergüenza” were also reflected in the affective meaning of their corresponding terms. We conclude that “shame” and “vergüenza” do not share the same cluster of central features, and cannot be treated as identical categories of emotional experience. This finding raises serious questions about the one-to-one translation practices not only of most cross-cultural studies on “shame”, but also of other emotion concepts. We suggest an alternative method of translation based on Diachronic Prototype Semantics (Geeraerts, 1997). (shrink)

The studies presented here apply the concept of entitativity in order to understand how belonging to a particular geographical area – neighborhood - can determine the way others organize information and form impressions about area’s residents. In order to achieve this objective, three studies were carried out. The first study aims to verify if a neighborhood varies in terms of perceived entitativity, and identify the physical and social characteristics of the neighborhoods that are more strongly associated with the perception of (...) entitativity. The Study 2 and 3 used an experimental paradigm to explore how people’s perceptions of neighborhoods’ entitativity influenced their impressions of residents. To activate stereotypes, Study 2 used the name of real neighborhoods, and Study 3 employed only a set of pictures of unknown neighborhoods. The results show that the neighborhoods vary significantly with the regard to the perception of entitativity, and a set of physical attributes of place were strongly related with entitativity. The results showed that, independent of stimuli, the neighborhoods perceived as highly entitative, the supposed residents were subject to more extreme and quicker trait judgments, supported by greater confidence on the part of perceivers. Study 3 also reported that in highly entitative neighborhoods, the perceivers transferred more traits from the group to individual members. These results provide strong evidence that physical structure of neighborhoods imply different entitatity judgments that influences the way in which residents are perceived. (shrink)

O presente artigo propõe refletir sobre a vivência ético-política-afetiva na comunidade. Discute-se três pontos principais: 1. Como se dá a ética, a política e os afetos em uma comunidade a partir da Filosofia de Espinosa. 2. Partindo-se da compreensão da dinâmica dos afetos como se pode compreender a liberdade e a servidão na vivência comunitária. Como a comunidade age ou não de tal forma que a liberdade ou a servidão, respectivamente, passam a ser vivenciadas no ambiente comunitário? O que poderá (...) favorecer a liberdade ou a servidão? 3. Proposta de uma ação compartilhada dos profissionais. O objetivo dessa análise é revisitar a reflexão sobre ética, política e afetos na comunidade e, a partir de Baruch de Espinosa, proporcionar uma análise que reatualize o que seja comunidade na perspectiva essa revisitação. O conceito de comunidade que esse artigo se refere diz respeito ao conjunto de pessoas que convivem no mesmo território ou no mesmo bairro e que, no quotidiano, vivenciam diversas experiências. Tem-se como reflexões principais que, mediante a compreensão da dinâmica instável dos afetos, os profissionais que ‘atuam’ em comunidades, poderão ter uma visão mais ampla sobre suas práticas e se as mesmas fomentam ou aumentam estados de servidão ou se, ao contrário, contribuem para a liberdade da comunidade e dos indivíduos. (shrink)

RESUMO Este artigo procura mostrar como a linguagem e o estilo empregados por Dostoiévski já em seu romance de estreia, Gente pobre, contribuíram para a grande inovação realizada por ele na forma literária. Ao tomar como objeto de representação a realidade prática de camadas inferiores da sociedade e adotar em sua obra uma linguagem também considerada de nível inferior, própria à maneira de se expressar dessas camadas sociais, Dostoiévski não só transcende todas as regras literárias estabelecidas como também as já (...) transgredidas até então, porque ele leva a sério não só a realidade cotidiana como a linguagem, o nível de estilo próprio a elas. Com isso ele se aproxima da representação séria e elevada da realidade cotidiana sem mudar as regras de estilo, como fizeram os franceses. O que ele muda é o ponto de vista, o foco narrativo, de um modo que não encontra precedente nem mesmo na literatura Ocidental. ABSTRACT This article seeks to show how the language and style employed by Dostoevsky since his debut novel, Poor Folk, contributed to the great innovation that he introduced into literary form. By adopting the practical reality of the lower strata of society as his object of representation and, accordingly, a low-style language, Dostoevsky transcended all established literary rules, as well as others that were already being transgressed. He took seriously both the reality of everyday life and its language, the style level proper to it. In so doing, he approached the serious and elevated representation of everyday reality without changing the rules of style, as the French did. What he changed is the point of view, the narrative focus, and he did so in a way that had no precedent even in Western literature. (shrink)

Entre los objetivos primordiales de la enseñanza de segundas lenguas está el desarrollo de habilidades comunicativas como base para la correcta comprensión. En el diagnóstico realizado al estudiantado de la Filial Preparatoria de las Ciencias de la Salud de Morón se evidenciaron limitaciones en dicho componente, porque no es capaz de comprender literalmente el texto, resumirlo, comentar la información ni emitir juicios y criterios. Por tal motivo este trabajo tiene como objetivo analizar aspectos esenciales del desarrollo de la comprensión de (...) textos con fines específicos en el estudiantado de los cursos preparatorios de las ciencias de la salud. Between the principals objectives of teaching second languages, it´s the development of communication activities to base for the correct understanding. Diagnose done to the students of the ¨Preparatory Filial in Health Science of Morón¨ we could watched limitations of this resource, because isn´t capable to understand the text textually, to summarize it, comment the information neither make judgments and opinions. By the way this project has like primary objective make a bibliographic revision of the fundamental aspects about the importance has de development of texts compression with specifics purposes in the students in preparatory courses of health ´s science. (shrink)

In Leibniz’s New Essays stands out, within many important topics, his doctrine of innate ideas, which supposes the division between sense knowledge and innate knowledge and implies the distinction between truths of reason and truths of fact. That doctrine is particularly relevant for Leibniz’s philosophy, but implicitly entails the epistemological difference between belief, on one hand, and certainty, on the other. In this paper I outline, according to my interpretation, how Leibniz explains that humans can have certainty about innate ideas. (...) This topic is important because if Leibniz demonstrates the possibility of having certainty of those ideas, then, it is feasible to believe in its existence. However, if his explanation is unsatisfactory his metaphysical doctrine would be seriously weakened and, at the same time, both skepticism and Locke’s empiricist doctrine would be reinforced. (shrink)

Restorativeness is defined as the potential of the environment to re-establish certain cognitive capacities related to human information processing. The most frequently used instrument for evaluating the restorativeness of places is the Perceived Restorativeness Scale, proposed by Hartig and colleagues (1991). Later on, shorter versions of the Perceived Restorativeness Scale were proposed. The aim of this work is to evaluate the discriminatory capacity of the original and of a shorter Spanish version of the PRS, considering urban settings previously selected for (...) having different level of restorativeness, according to expert’s criteria. The study involved 244 students and used a 3 x 2 mixed experimental design, with two independent variables: Restorativeness of a place (between-subjects), which was manipulated by showing pictures of settings selected with varying levels of restorativeness (high, medium, low), and length of the scale (within-subjects), which was manipulated by asking subjects to fill in both the original and a shorter version of the PRS. The order of presentation of the two scales was counterbalanced. Results show an appropriate reliability for both version of the scale. Items of being-away, fascination, and coherence of the shorter scale correlate more strongly with the corresponding factor of the original scale, compared to the others factors. Both scales produce similar values for the perceived restorativeness of the different places, except for places with low restorativeness. (shrink)

This book highlights the powerful impact of some important Spanish Jesuits (Suárez, Acosta, Ribadeneira, Mariana) on some relevant English thinkers such as Locke, Bacon, and others, regarding politics, law and natural rights, an influence sometimes hidden and always controversial.

This book highlights the powerful impact of some important Spanish Jesuits (Suárez, Acosta, Ribadeneira, Mariana) on some relevant English thinkers such as Locke, Bacon, and others, regarding politics, law and natural rights, an influence sometimes hidden and always controversial.

En toda sociedad, cada uno de sus componentes y cada una de sus instituciones cumplen un rol determinante. El rol de los medios de comunicación es vital para sustentar la socialización, habiendo llegado incluso a ser llamados elementos democratizadores. Pero hoy en día están operando en contra de sus reales funciones y asumiendo a todas luces comportamientos antiéticos. Esto no solamente se pone de manifiesto en el periodismo cada vez más desprestigiado, también está operando en los distintos formatos y géneros (...) de manera cada vez más acentuada. Los programas de entretenimiento incurren con frecuencia en la vulgaridad y con toda impunidad pisotean la Ley N° 28278, de tal manera que han llegado a generar la intervención del Poder Judicial, evidenciando que los medios de comunicación y los comunicadores no se pueden autorregular. Pero ¿por qué hemos llegado a esta crisis? ¿Qué pasó con los comunicadores, con los profesionales de la verdad? Es entonces cuando caemos en cuenta de que el comunicador, en sus distintas ramas, debe recuperar su identidad como profesional y no limitarse a ser solamente un buscador de likes o de rating. (shrink)

Hemos ingeniado numerosos juegos para solazarnos; jugamos en las relaciones sociales desempeñando papeles con sus pertinentes máscaras; y el mundo semeja un gran juego que avanza subyugado por reglas, en el que, armados de nuestros saberes, jugamos para mantenernos vivos y vivir de la mejor manera. Mas aquí no se acaba el juego: resulta que el mundo, que es uno entre los posibles, debe de haberse impuesto, sin duda, a otras combinaciones de cartas en una recóndita partida de póquer de (...) un jugar inasible y difuso que rehúye nuestras concepciones. Porque, si bien de los juegos que hemos construido sabemos el qué, el para qué y el cómo, no podemos decir lo mismo del juego del mundo, inscrito a su vez en una maraña que juega sin límite y en la que nos vislumbramos. Por ello hemos de aclarar en qué consiste este juego último, para intentar descubrir a qué juega todo y a qué juega el ser humano. A ello ha venido consagrándose la Metafísica con estrategias varias: la Metafísica es también un juego, un juego de nociones, y a él se aplica este ensayo pretendiendo jugar con el mayor tino aun sin obtener ganancia. Así pues, este no es un libro de filosofía, contra lo que proclama el título; esto es un entretejido de partidas de un juego desesperado donde el jugador se juega el mundo, la vida, el pensamiento, el hombre y hasta a sí mismo. Con el molde del juego probaremos a concebir la realidad entera y a digerir la temática filosófica en sus tópicos más relevantes. Porque en este escrito la palabra juego funcionará como un significante flotante (en la nomenclatura estructuralista), como un valor simbólico cero, susceptible de aplicarse a cualquier fenómeno, y útil para conexionar nuestras inquietudes en los escenarios más diversos. Con dicha táctica, este libro recorrerá los problemas fundamentales de la filosofía para ofrecer al lector una visión aventurera al mismo tiempo que coherente. Empezando por un juego de solitario, el del Yo pensante, nos abriremos al pensamiento y al mundo, como juego en que participamos los hombres; veremos cómo en él se constituye el sentido o ser de las cosas, y cómo ese juego nos catapulta a un Gran Juego columbrado, al Juego de Ser (por llamarlo de algún modo), a un jugar sin sujeto y sin reglas al que no cabe aplicarle nuestras nociones. En tal juego intervenimos los hombres y efectuamos nuestras apuestas con los otros y con nosotros mismos y ante la muerte. Este libro se dirige a los jugadores genuinos, a los amantes del juego al margen de su resultado, dispuestos a los triunfos y a las derrotas, y a la derrota definitiva, sabedores de que todo es un juego después de todo. Emprenderemos, pues, un juego en sentido estricto y en sentido laxo, habida cuenta de que el ser y la nada, la verdad y el conocimiento, el mundo y las cosas, el hombre y el Yo pensante, la sociedad y la historia, el bien y el mal, Dios y el absurdo, la transcendencia y la muerte… son piezas, cartas o fichas con que nos hemos topado en un juego que nos abarca y al que nos sentimos arrojados. En cuanto juego, este libro, verdadero curso de filosofía para jugadores, aspira solo a que sus jugadas cuadren. (shrink)

The precise nature of microaggression purposely obscures the exploration of the intentionality of perpetrator and the quantification of the harm committed. The act fits neatly into a system that privileges some and validates their reality to themselves and to us. This paper explores microaggression and recommends strategies for avoiding its harms.

My aim in this paper is to carve out a political understanding of the Muslim identity. The Muslim identity is shaped within a religious mold. Inseparable from this religious understanding is a political one that is valuable in its own right in order to secure any sustainable possibility of participating politically as Muslims within a democratic liberal democracy, such as the United States. Here I explore not the historical or theological formation of the Muslim identity, rather a metaphysical understanding of (...) it, in order to mobilize politically while avoiding the traps of essentialism. I begin with a brief overview of the early understandings of the term “identity politics” in the United States. Moving beyond interest-based movements I explore María Lugones' particular understanding of the self as multiplicitous. I then offer examples of the Muslim identity within the context of a social movement and individualist claims, in order to draw out the political aspects of the Muslim identity. In the final section I argue that the theological criteria that define “who counts as a Muslim” is a crucial aspect of how many Muslims may understand their identity as Muslims. However, I claim that in order to avoid the traps of marginalization of Muslim minorities, one must understand oneself as a multiplicitous political agent and that, furthermore, such an understanding is not at odds with Islam or one's own understanding of their identity as Muslim. (shrink)

Dans cet article nous proposons une définition de l’éthique de la gestion et nous en identifions les conditions à travers une revue de la littérature. Nous postulons par la suite que l’éthique de la gestion diffère selon qu’il s’agit d’organisations publiques ou d’organisations privées. Nous montrons en effet que pour l’organisation privée, l’éthique est un engagement subjectif qui permet de pallier les lacunes d’une gestion instrumentale sans remettre en question les finalités premières de l’organisation. Tandis que pour l’organisation publique, l’éthique (...) a une essence positive et se trouve orientée vers la recherche de compromis sur les finalités mêmes de l’organisation. (shrink)

One distinguishing feature of vertebrate oocyte meiosis is its discontinuity; oocytes are released from their prophase I arrest, usually by hormonal stimulation, only to again halt at metaphase II, where they await fertilization. The product of the c‐mos proto‐oncogene, Mos, is a key regulator of this maturation process. Mos is a serine‐threonine kinase that activates and/or stabilizes maturation‐promoting factor (MPF), the master cell cycle switch, through a pathway that involves the mitogen‐activated protein kinase (MAPK) cascade. Oocytes arrested at prophase I (...) lack detectable levels of Mos, which must be synthesized from a pool of maternal mRNAs for proper maturation. While Mos is necessary throughout maturation in Xenopus, it seems to be required only for meiosis II in the mouse. The translational activation of c‐mos mRNA at specific times during meiosis requires cytoplasmic polyadenylation. Cis‐ and trans‐acting factors for polyadenylation are, therefore, essential elements of maturation. (shrink)