Skeletal Organization of Caudal Fin in Syngnathus abaster (Osteichthyes, Syngnathidae)

The caudal skeleton is one of the most important tools to evaluate teleostean interrelationships, but just the anatomy of few species have been investigated. Black-striped pipefish (Syngnathus abaster) has never been examined for its caudal morphology. Here, red alizaryn is applied as specific staining for calcified structures, providing a better understanding of caudal skeleton organization. Our results and interpretation just partially fit with previous knowledge on other Syngnathus species. This emphasizes both the importance of facing same problems with new technics and methodologies, and the existence of a heterogeneous situation between close-related taxa El esqueleto caudal es una de las más importantes herramientas para evaluar las interrelaciones de teleósteros, pero la anatomía de pocas especies han sido investigada. Nunca se ha estudiado la morfología de la cauda del pez aguja de río de rayas negras (Syngnathus abaster). Se usó una técnica específica de tinción con alizarina roja, para visualizar estructuras calcificadas, obteniéndose un gran conocimiento de la organización del esqueleto caudal. Los resultados e interpretación de ellos coinciden parcialmente con los hallazgos en otras especies de Syngnathus. En ambos casos se enfatiza la importancia de tratar los problemas con nuevas técnicas y metodología

Una strategia bi-direzionale per gestire una società pluralista

The multicultural identity of modern societies poses a series of challenges, which need being faced. One of these challenges is that of organizing a pluralist society in all its practical aspects as well as possible. The main aim of this paper is that of putting forward a political and social strategy to better integrate foreigners in a society whose values and traditions they do not know. The first assumption is that the integration of the immigrant population could depend as much on their will to take part in the society as on the receiving society’s ability to host them within its territory. By collaborating in order to achieve this objective and by building together a “bi-directional” strategy, the integration process could turn out to be more balanced and fruitful for both parties at play

L’arte di performance di Olivier de Sagazan

This interview to Olivier de Sagazan tackles important aspects of hisperformanceart such as: the relationship with the audience, the ‘here and now’, the reception of his work internationally, modernity and the universality of art

El diálogo intercultural para superar el choque entre civilizaciones

A través de este artículo se quiere intentar responder a una pregunta a la cual las sociedades modernas tienen que enfrentarse: ¿como pueden las personas que pertenecen a diferentes culturas conseguir lograr una pacifica convivencia? El artículo explicará las razones por las cuales el dialogo intercultural podría ser una respuesta razonable a este problema. Se darán explicaciones para fundamentar la tesis de que la cooperación no solamente es necesaria sino también deseable y sobre cómo las sociedades podrían facilitar el proceso de construcción de un dialogo intercultural lo más beneficioso posible. ABSTRACT This paper aims to find a solution to a relevant issue that modern societies have to face: how does people coming from different cultures can live side by side in the same society? This dissertation explains how an intercultural dialogue could be a reasonable response to face this problem. Not only co-operation among citizens is necessary, but it could be used to bring benefits for both the society and their citizens as well. It will be explained why modern societies should facilitate the process of an intercultural dialogue and how they could stimulate it trough his social and political channels. PALABRAS CLAVES: migraciones, culturas, diálogo, educación, integración. KEY-WORDS: migrations, cultures, dialogue, education, integration

Una strategia bi-direzionale per gestire una società pluralista || A two-way process strategy to build a pluralistic society

Resumen: Il carattere multiculturale delle società moderne ci pone serie di sfide, tra cui trovare il modo di gestire una società pluralista in ogni sua forma organizzativa. Lo scopo principale del paper è proporre una strategia socio-politica per l’integrazione degli stranieri in una società di cui non conoscono ancora i valori, partendo dal presupposto che l’inserimento degli immigrati dipenda tanto dalla loro volontà di far parte della società nella quale risiedono, quanto dalla capacità della società di ricezione di accoglierli. Collaborando costruendo assieme una strategia “bi-direzionale”, il processo di integrazione potrebbe essere più bilanciato e più proficuo per entrambe le parti. Abstract: The multicultural identity of modern societies poses a series of challenges, which need being faced. One of these challenges is that of organizing a pluralist society in all its practical aspects as well as possible. The main aim of this paper is that of putting forward a political and social strategy to better integrate foreigners in a society whose values and traditions they do not know. The first assumption is that the integration of the immigrant population could depend as much on their will to take part in the society as on the receiving society’s ability to host them within its territory. By collaborating in order to achieve this objective and by building together a “bi-directional” strategy, the integration process could turn out to be more balanced and fruitful for both parties at play

La casa [-es-] está

Durante el verano hice un viaje de mochilera por la costa del norte y nordeste brasileros. Me quedé durante dos meses en dieciséis casas de personas desconocidas que me recibieron sin ningún tipo de intercambio económico de por medio y en algunos casos, hasta me dieron la llave de ingreso a sus casas. Si bien el desplazamiento había comenzado con la idea de quedarme en casas ajenas para conocer lugares de un itinerario que había diseñado desde Córdoba, pronto me di con que los lugares eran casi un detalle; estaba viajando para conocer personas, convivir con ellas, conversar, intercambiar. Lo que estaba habitando ya no eran pedacitos de geografía, sino relaciones humanas. Los distintos modos de relacionarme con la gente me llevaron a pensar en qué es una casa cuando una está viajando de esta manera, con un movimiento constante. Primer decreto: las casas son las personas. Si ya no se trataba sólo de una construcción material que guarda y protege lo que se encuentra en su interior, ¿qué otras cosas podían ser una casa? Muy pronto el contexto “viaje” que enmarcaba estos pensamientos, se extendió. ¿Qué es una casa cuando estoy viajando? ¿Qué es una casa luego? ¿Qué es una casa donde vivo ahora? ¿En qué casa quiero vivir? Mi trabajo final –entonces- es una indagación de mi versión del concepto de casa, en relación a cosas que fueron sucediendo durante el viaje pero que finalmente lo exceden. El viaje se presenta como un resorte, pero el cuerpo rebota y golpea contra muchas otras paredes

Light depolarization effects during the Fréedericksz transition in nematic liquid crystals

This work is aimed to the photopolarimetric characterization of the disorder evolution occurring in homeotropically aligned nematic liquid crystal films during the electrically induced Freedericksz transition. The molecular director dynamics and the transversal reorientation modes are investigated by the analysis of the depolarization of the light beam emerging from the sample. Our measurements reveal unexpected depolarization effects at the transition, which we interpret in terms of director field unhomogeneity and defects creation. (C) 2007 Optical Society of America

Black Stain: studio clinico e microbiologico

Aim of the work. Objectives of the study are the following: quantify and identify microorganisms in the dental plaque of patients with black stain; test in vivo and in vitro efficacy of two mouthwashes; identify a protocol. Materials and methods. The research protocol included a clinical and a microbiological stage. 63 patients between 2 and 15 years with black stain were selected, then divided into three groups. In Group 1 (19 patients) no mouthwash was prescribed. In Group 2 (21 patients) was prescribed a fluoride mouthwash (Sodium Fluoride 0,05%). In Group 3 (23 patients) a chlorhexidine 0,12% mouthwash was prescribed. The microbiological stage provided analysis of pigmented plaque through bacterial count and identification tests and aura of inhibition on agar plate to evaluate the inhibitory power of the mouthwashes examined. Results. It was highlighted a strong decrease in index of pigmented plaque in Group 3 than Groups 1 and 2. The microbiological analysis revealed a decrease in bacterial count higher in Group 3 than Groups 1 and 2. The bacteria identified the most were Clostridia. The chlorhexidine mouthwash was more effective than fluorine mouthwash on bacterial growth. Conclusions. The use of mouthwash in conjunction with periodic specialist visits is essential to assist oral hygiene at home. It is assumed that the mouthwash with chlorhexidine 0,12% is the most effective in reducing black stain in vivo and in vitro