931 resultados para Mosca blanca


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[EN] This paper examines the syntactic ideas of Pablo Pedro Astarloa (1752-1806) as he explained in his Discursos filosóficos sobre la lengua primitiva (1805), and tries to put them in the context of the debate between rationalists and sensualists, who argued whether there is a «natural order» of words. Astarloa developed a system for accounting the word order in the primitive language of mankind (and hence in the Basque language) founded in three types of «nobleness», and in the principle that the noblest element precedes the less noble one. The first type (nobleza de origen) orders words according to their meaning. The second type (nobleza de ministerio) orders words according to the part of speech they belong to, or the semantic function they have. Finally, the third type (nobleza de mérito or de movilidad) considers the will for communication and, as a result, word order reflects the information structure. Moreover Astarloa ’s three types of nobleness are arranged in a hierarchy of superiority: movilidad > ministerio > origen. So Astarloa ’s syntax appears near to sensualists ’ conceptions on word order because it did not appeal for a fixed natural order of words; instead he proposed a variable word order based mainly on the communicative process.

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Presentado en las Jornadas Euskal testuen edizioa: gaurko ikuspegiak eta etorkizuneko ikuspegiak = Edición de textos vascos: perspectivas actuales, perspectivas futuras (Bilbo, 2008.11.11-12)

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The purpose of the present study was to confirm the migratory habits of the anchovy, Lycengraulis olidus (Günther), between fresh and sea water environments. Anchovies were examined from three freshwater localities: Bella Vista and Rosario (Paraná river) and Punta Lara (La Plata river), and from four marine localities; Mar del Plata, Bahia Blanca, San Blas and Patagones, all in the Argentine Republic. Five meristic and nine morphometric characters were selected for study, namely: vertebrae; dorsal, pectoral and anal fin rays; gill rakers on the first gill arch; head-length; body-depth; distance between the snout and dorsal, pectoral, ventral and anal fin; eye-diameter; snout and maxilary. The food of the anchovy in fresh and sea water consists principally of fish and crustaceans including copepods, paleamonids, sergestids and larvae of Brachyura. The condition factor of the anchovy was lower in the fresh-water samples and higher in the marine samples. (PDF has 32 pages (two pages on each)

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[EUS] Euskal Lexikografia irakasgairako prestaturiko gida-liburua da. Atalak: "Lexikografia" zer den, noiz eta zergatik bihurtu den iker-arlo, eta nola aztertu ohi den (§ 1). Euskal Lexikografia bera iker-arlo gisa nola garatu den eta egun zertan den (§ 2). Euskal lexikografia irakasgai modura (§ 3). Helburuak (§ 4). Metodologia (§ 5). Ebaluaketa (§ 6). Ondoko ataletan Euskal Lexikografiaren historia azaltzeko ideia nagusiak garatzen dira garaiz garai.

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[EUS] 1936 arte egin ziren euskal liburu zaharren berrargitalpenak euren bereizgarrien arabera sailkatu ditugu, lehen hurbilketa modura. Gehienak tentuz erabiltzekoak dira, jatorrizko testuarekiko leialak ez diren heinean, baina bestalde datu jakingarriak eskaintzen dituzte garaian garaiko asmoez, joerez eta euskararen gaineko pentsamoldeaz.

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La microfauna bentónica y planctónica se ha convertido en una herramienta precisa de detección de las variaciones paleoceanográficas y paleoclimáticas. La combinación de grupos faunísticos diferentes, cuya respuesta ante los mismos factores ecológicos puede ser diversa, permite analizar de manera aún más concreta los cambios oceanográficos y climáticos en la misma área de estudio. Así mismo, el estudio de las asociaciones microfaunísticas con técnicas isotópicas y sedimentológicas, posibilitan la determinación del grado de afectación de los parámetros ecológicos considerados en las especies identificadas. La comparación de las variaciones específicas detectadas en el pasado con la distribución de dichas asociaciones en los modelos actuales, permite caracterizar los cambios pretéritos del medio que habitaban estos organismos. El presente trabajo está estructurado en dos bloques principales: por un lado, se estudia la microfauna (foraminíferos bentónicos, planctónicos y ostrácodos) en muestras superficiales de la plataforma, con el objetivo de determinar los parámetros ecológicos que controlan su distribución a lo largo del área de estudio. Por otra parte, se analizan 5 sondeos obtenidos a diferente profundidad, que permiten definir las variaciones oceanográficas y climáticas acontecidas en la plataforma Vasca a finales del Cuaternario, basándonos en los cambios de las asociaciones de microfauna que se suceden a lo largo de los sondeos. Estas variaciones faunísticas denotan, por tanto, cambios ambientales.

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Este proyecto plantea el reto de realizar una aplicación web para la gestión y control de una casa rural desde dispositivos móviles como smartphones y tabletas, con una interfaz de propietario para gestionar de manera dinámica las diferentes partes de la misma, así como la inclusión de una zona de niños donde se aplicarán tecnologías de Inteligencia Artificial en concreto representación del conocimiento mediante “frames”, donde se permitirá a los usuarios realizar preguntas al sistema para intentar adivinar un árbol que previamente la propietaria de la casa rural habrá establecido. El objetivo no es elaborar un sistema experto, tarea que requeriría muchas más horas que las que corresponden a un proyecto de fin de carrera, sino comprobar la posibilidad de integración de estas herramientas en una aplicación orientada a dispositivos móviles. Se emplearán las funcionalidades de HTML5 para la inclusión de la “zona explorador” donde los niños podrán geo localizar árboles, así como su posterior búsqueda a modo de GPS donde los usuarios podrán ver donde está situado el árbol que desean buscar y su posición actual, la cual se irá actualizando automáticamente.

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Con este proyecto hemos querido proporcionar un conjunto de recursos útiles para la impartición de un curso de Swarm Intelligence enfocado a la Particle Swarm Optimization (PSO). Estos recursos constan de una aplicación en NetLogo para poder experimentar, ejecutar y visualizar los diferentes modelos de la PSO, un review de la Swarm Intelligence profundizando en la PSO y una ontología de PSO que incluye los recursos bibliográficos necesarios para la investigación y la escritura de artículos.

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[EN]This work analyzes the problem of community structure in real-world networks based on the synchronization of nonidentical coupled chaotic Rössler oscillators each one characterized by a defined natural frequency, and coupled according to a predefined network topology. The interaction scheme contemplates an uniformly increasing coupling force to simulate a society in which the association between the agents grows in time. To enhance the stability of the correlated states that could emerge from the synchronization process, we propose a parameterless mechanism that adapts the characteristic frequencies of coupled oscillators according to a dynamic connectivity matrix deduced from correlated data. We show that the characteristic frequency vector that results from the adaptation mechanism reveals the underlying community structure present in the network.

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Background: This study aimed to examine factors associated with treatment adherence in first-episode psychosis (FEP) patients followed up over 8 years, especially involuntary first admission and stopping cannabis use. Methods: This prospective, longitudinal study of FEP patients collected data on symptoms, adherence, functioning,and substance use. Adherence to treatment was the main outcome variable and was categorized as ‘good’ or ‘bad’. Cannabis use during follow-up was stratified as continued use, stopped use, and never used. Bivariate and logistic regression models identified factors significantly associated with adherence and changes in adherence over the 8-year follow-up period. Results: Of the 98 FEP patients analyzed at baseline, 57.1% had involuntary first admission, 74.4% bad adherence,and 52% cannabis use. Good adherence at baseline was associated with Global Assessment of Functioning score (p = 0.019), Hamilton Depression Rating Scale score (p = 0.017) and voluntary admission (p < 0.001). Adherence patterns over 8 years included: 43.4% patients always bad, 26.1% always good, 25% improved from bad to good. Among the improved adherence group, 95.7% had involuntary first admission and 38.9% stopped cannabis use. In the subgroup of patients with bad adherence at baseline, involuntary first admission and quitting cannabis use during follow up were associated with improved adherence. Conclusions: The long-term association between treatment adherence and type of first admission and cannabis use in FEP patients suggest targets for intervention to improve clinical outcomes.

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[EN]Based on the theoretical tools of Complex Networks, this work provides a basic descriptive study of a synonyms dictionary, the Spanish Open Thesaurus represented as a graph. We study the main structural measures of the network compared with those of a random graph. Numerical results show that Open-Thesaurus is a graph whose topological properties approximate a scale-free network, but seems not to present the small-world property because of its sparse structure. We also found that the words of highest betweenness centrality are terms that suggest the vocabulary of psychoanalysis: placer (pleasure), ayudante (in the sense of assistant or worker), and regular (to regulate).

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In this work, a study of the nematic (N)-isotropic (I) phase transition has been made in a series of odd non-symmetric liquid crystal dimers, the alpha-(4-cyanobiphenyl-4'-yloxy)-omega-(1-pyrenimine-benzylidene-4'-oxy) alkanes, by means of accurate calorimetric and dielectric measurements. These materials are potential candidates to present the elusive biaxial nematic (N-B) phase, as they exhibit both molecular biaxiality and flexibility. According to the theory, the uniaxial nematic (N-U)-isotropic (I) phase transition is first-order in nature, whereas the N-B-I phase transition is second-order. Thus, a fine analysis of the critical behavior of the N-I phase transition would allow us to determine the presence or not of the biaxial nematic phase and understand how the molecular biaxiality and flexibility of these compounds influences the critical behavior of the N-I phase transition.