According to kin selection theory, indirect reproductive advantages may induce individuals to care for others with whom they share genes by common descent, and the amount of care, including self-sacrifice, will increase with the proportion of genes shared. Twins represent a natural situation in which this hypothesis can be tested. Twin pairs experience the same early environment because they were born and raised at the same time and in the same family but their genetic relatedness differs depending on zygosity. We (...) compared the degree of willingness to fight and sacrifice for the co-twin among monozygotic and dizygotic pairs in a sample of 1443 same-sex and opposite-sex twins. We also analyzed the effect of the subject’s gender and that of the co-twin on those altruistic behaviors. Results partly supported the postulated explanation. MZ twins were significantly more likely than DZ twins to self-sacrifice for their co-twins, but zygosity did not affect willingness to fight for him/her. The genders of the subject and of the co-twin, not genetic relatedness, were the best predictors of aggressive altruistic intentions. (shrink)

According to kin selection theory, indirect reproductive advantages may induce individuals to care for others with whom they share genes by common descent, and the amount of care, including self-sacrifice, will increase with the proportion of genes shared. Twins represent a natural situation in which this hypothesis can be tested. Twin pairs experience the same early environment because they were born and raised at the same time and in the same family but their genetic relatedness differs depending on zygosity. We (...) compared the degree of willingness to fight and sacrifice for the co-twin among monozygotic and dizygotic pairs in a sample of 1443 same-sex and opposite-sex twins. We also analyzed the effect of the subject’s gender and that of the co-twin on those altruistic behaviors. Results partly supported the postulated explanation. MZ twins were significantly more likely than DZ twins to self-sacrifice for their co-twins, but zygosity did not affect willingness to fight for him/her. The genders of the subject and of the co-twin, not genetic relatedness, were the best predictors of aggressive altruistic intentions. (shrink)

Tumor progression involves the transition from normal to malignant cells, through a series of cumulative alterations. During this process, invasive and migratory properties are acquired, enabling cells to metastasize (reach and grow in tissues far from their origin). Numerous cellular changes take place during epithelial malignancy, and disruption of E‐cadherin based cell‐cell adhesion is a major event. The small Rho GTPases (Rho, Rac and Cdc42) have been implicated in multiple steps during cellular transformation, including alterations on the adhesion status of (...) the tumor cells. This review focuses on recent in vivo evidence that implicates RhoGTPases in epithelial tumor progression. In addition, we discuss different hypotheses to explain disruption of cadherin‐mediated cell–cell adhesion, directly or indirectly, through activation of Rho GTPases. Understanding the molecular mechanism of how cadherin adhesion and RhoGTPases interplay in normal cells and how this balance is altered during cellular transformation will provide clues as to how to interfere with tumor progression. © 2003 Wiley Periodicals, Inc. BioEssays 25:452–463, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

Este trabajo analiza la denominada “violencia contra las mujeres” o “violencia de género” como tipo específico de violencia: manifestación de la discriminación basada en el sexo; de raíz ideológica en el sexismo y de carácter estructural, subrayando que para luchar contra ella es necesario un enfoque integral como el adoptado por la LO 1/2004. A continuación se examina dicha ley desde el punto de vista del principio constitucional de no discriminación basada en el sexo y se sostiene que, con carácter (...) general, los tratamientos jurídicos diferenciados en función del sexo de la LO 1/2004 estarían justificados desde el punto de vista de la finalidad perseguida; que, además, satisfacen el parámetro de la proporcionalidad los establecidos en los ámbitos de los derechos sociales y laborales y judicial y que sería posible una interpretación conforme a la Constitución de los tipos penales cualificados en la línea de exigir un fundamento adicional para la agravación (el carácter discriminatorio de la conducta) y la concurrencia de ese fundamento adicional en el caso concreto. (shrink)

En este artículo analizo la novela de Nayib Mahfuz, Hijos de nuestro barrio, desde la perspectiva de los personajes femeninos, especialmente en referencia a dos elementos centrales del barrio de las religiones monoteístas: la tierra prometida y el pueblo elegido.Através de los personajes femeninos Mahfuz recupera una memoria más comprensiva de la civilización humana.

En este trabajo se analiza la reflexión de Madame de Staël sobre la felicidad, por qué cree que partimos de una concepción errónea, por qué las pasiones son un factor decisivo y de qué recursos disponemos para ser felices. Atendiendo a esto último, en este artículo se analiza por qué las protagonistas de sus dos grandes novelas, Delphine y Corinne, fracasan, cuál es la posición de los personajes masculinos y si la autora ofrece a las mujeres otros medios para buscar (...) la felicidad. (shrink)

Remedios ÁVILA CRESPO Trotta 2018, 213 pp. Madrid ISBN: 978-84-9879-758-9.

The thesis that I develop in this paper is that there is a way of affirmation of the existence and the world in Schopenhauer, assuming no foundation, an aesthetic justification of existence or a way of life either as a tragic pessimism or pessimism of strength. This is an additional path to his basic position stated in The World as Will and Representation and is clearly in Parerga and Paralipomena, especially in «On Religion» and in «Aphorisms on the wisdom of (...) life». To develop that thesis, I analyze the concept of «need for metaphysics» and its relationship to art and to the author’s project of philosophy. (shrink)

This study analysed the effects a values education programme can have on the feelings of self‐realisation, self‐concept and self‐esteem of Romany adolescents in southern Spain. To do this, an experimental group received a values education intervention but a control group did not. The intervention programme was adapted to the Romany culture. The self‐realisation, self‐concept and self‐esteem of both groups were evaluated using the Self‐Concept and Realisation Questionnaire. Statistical analyses showed the existence of significant differences between the experimental and control groups (...) on the variables studied. Based on the results, we suggest that a values education programme like this, that has been culturally adapted, can make a positive impact on the self‐realisation of young people from a marginalised community. (shrink)

La concepción de los espacios educativos se genera dentro de una sociedad tecnológica afanada en preparar al alumnado. Se plantea descubrir qué conceptos se barajan acerca de los espacios educativos creando tendencias. La metodología de revisión bibliográfica tiene en cuenta la base de datos WOS seleccionando y revisando críticamente 10 publicaciones de actualidad. Se concluye que hay profusión de nuevos conceptos que se barajan teniendo en cuenta la asimilación de estos nuevos espacios, los espacios de aprendizaje y las tecnologías usadas. (...) También se barajan temáticas teniendo en cuenta la situación del alumnado y del profesorado adaptándose a estos nuevos espacios. (shrink)

La renovación metodológica que impulsa el EEES implica un nuevo enfoque didáctico, dándole mayor importancia al aprendizaje motivacional que a la enseñanza. En este contexto, las metas vitales del alumnado y su actitud ante el aprendizaje son determinantes clave en su motivación. El objetivo de este trabajo es analizar las orientaciones motivacionales y de aprendizaje de los estudiantes de la Facultad de Ciencias Sociales y Jurídicas de la Universidad de Jaén para proponer al profesorado actuaciones, procedimientos, tácticas, y recursos que (...) influyan favorablemente en la motivación del alumnado, impulsen la participación y asistencia a clase y contribuyan a un aprendizaje activo. (shrink)

This two country study examines the effect of corporate ethical values and enforcement of a code of ethics on perceptions of the role of ethics in the overall success of the firm. Additionally, the impact of organizational commitment and of individual variables such as ethical idealism and relativism was examined. The rationale for examining the perceived importance of the role of ethics in this manner is to determine the extent to which the organization itself can influence employee perceptions regarding ethics (...) and social responsibility. Results indicate that all of the variables tested, except relativism, impacted upon one’s perceptions of the importance of ethics and social responsibility. Perceptions of the importance of ethics and social responsibility also varied depending upon country of residence with the U.S. sample having somewhat higher perceptions concerning the importance of ethics and social responsibility than their counterparts in Spain. Furthermore, when comparing the two samples, the U.S. sample had significantly higher corporate ethical values, greater enforcement of ethical codes, less organizational commitment and both lower idealism and relativism. (shrink)

Se presenta en este trabajo la doctrina de la šafā‘a, esto es, la intercesión escatológica del Profeta por su comunidad, desde la perspectiva de los nuevos vínculos de cohesión social de la sociedad religiosa instaurada por el islam que sustituían a la aṣabiyya tribal, constituyéndose la šafā‘a en el colofón y broche final de esos nuevos vínculos. Tras estudiar dicha doctrina se constata la seguridad de la salvación final que ofrece, elemento valiosísimo de cohesión social, y se destaca la exclusividad (...) de la šafā‘a para solo el musulmán a través de la comparación de La disputa entre los animales y el hombre de los Ijwān al-Ṣafā’ con La disputa de l’ase de Turmeda y a través de la verdadera causa de la muerte de al-Ḥallāŷ según al-Rūmī. Hay, sin embargo, una excepción a esa exclusividad ya que existen musulmanes que quedan excluidos de la šafā‘a. Son estos, los herejes, quienes con la divulgación de sus nuevas doctrinas ponen en peligro la unidad y la cohesión de la comunidad. Se termina sugiriendo el posible calco de esta doctrina islámica en la devoción a la intercesión de la Virgen, pues la devoción mariana que con tanta fuerza irrumpe en el Occidente cristiano a partir del siglo XII, y que aparece reflejado en la Cantigas de Alfonso X el Sabio y en los Milagros de Nuestra Señora de Gonzalo de Berceo, es un fenómeno cuyo origen es todavía discutido. (shrink)

The colonial model imposed in Cuba by the creole oligarchy and the cabinet in Madrid. Thwarted every possibility of an economy diversificied development and doonet the isle to a story where the slavery supergroning production with all its social and political implications prevailed. This system, that implied a crisis in itself, was absolutely artificial: it was a creator of richness for a very small group, and of course, it was unable to correct the tremendous condetions thas implied. The system hastered (...) in the underdevelopment and in the independency to Cuba at the same time that morgatet its future as a nation. (shrink)

This study analyses Spinoza’s Tractatus theologico politicus from the point of view of the confrontation between revealed Scripture and philosophy, and links it with the history of this confrontation in Maimonides and the Arab philosophers, highlighting similarities and differences. The three key points of the analysis are the following: Salvation through philosophy; Salvation through religion; and the guarantor of Salvation: political power.

Los falāsifa no se mantuvieron tan imparciales en el tema de la Šu‛ūbiyya como sugiere Goldziher, pues, al menos, en el caso del médico y filósofo al-Rāzī ataca éste el núcleo más genuinamente árabe al polemizar contra la ‛arabiyya, adab, zarf, naḥw, ši‛r... y al situar por encima de las ciencias filológicas árabes a las ciencias filosofico-científicas características del Helenismo. Por ello puede considerarse este ataque de Al-Rāzī como un capítulo más de la polémica de la Šu‛übiyya. Todo esto lo (...) expone al-Rāzī en el capítulo cinco de su tratado Fī l-ṭibb al-rūḥānī, que es el que se presenta y traduce en este trabajo. (shrink)

The nature of Spinoza’s third kind of knowledge still remains a matter of discussion as it has not been clarified yet. This paper offers a comparison between this knowledge in Spinoza and the superior knowledge to the rational discursive knowledge that Ibn Ṭufayl puts forward in his work translated in 1671 with the title Philosophus autodidactus, a work that Spinoza knew and recommended to his friends. Since this type of knowledge in Ibn Ṭufayl is a kind of rationalization of the (...) mystic experience, and given that Spinoza highly esteemed this work by Ibn Ṭufayl, we could infer from these two hints how the nature of Spinoza’s third kind of knowledge should be understood. (shrink)

The confrontation between Philosophy and Sufism —as systematized by Algazel— as a means for acquiring human knowledge and happiness, provoked differing reactions among Andalusian philosophers: Avempace totally denied the claims of the sufis and declared Philosophy as the only adequate study for achieving complete satisfaction in all human potentialities. Ibn Ṭufayl undertook the Sufi path within his philosophy, combining the ecstasy searched for the sufis with Plotinian ecstasy. Averroes recognized the validity of the Sufi path, but only for the few. (...) He believed that the only normal and accesible path for the intelligent man was Philosophy. The experience of ecstasy is not contemplated in his philosophy. The synthesis of Philosophy and Sufism developed by Ibn Ṭufayl had no continuity in the western Islamic world. Philosophy being finally eliminated from the intellectual horizon by Sufism, a phenomenon which is perfectly apreciable in Ibn Khaldūn. (shrink)