949 research outputs found
Asymptotic Analysis of a Cucker–Smale System with Leadership and Distributed Delay
No full textWe extend the analysis developed in Pignotti and Reche Vallejo (J Math Anal Appl 464:1313–1332, 2018) [34] in order to prove convergence to consensus results for a Cucker–Smale type model with hierarchical leadership and distributed delay. Flocking estimates are obtained for a general interaction potential with divergent tail. We analyze also the model when the ultimate leader can change its velocity. In this case we give a flocking result under suitable conditions on the leader’s acceleration
Hydrelliaeucoila rufa Reche & Gallardo 2022, sp. nov.
No full textHydrelliaeucoila rufa Reche sp. nov. urn:lsid:zoobank.org:act: FD3C3F03-EB27-49EB-A828-C2858C33378A (Figure 2) Holotype Female. ARGENTINA. Buenos Aires, Buenos Aires, - 34.5997222S, - 58.3819444W. 15 September 1912, A. Zotta coll. (MLP). Paratypes (2 females): ARGENTINA. Buenos Aires, Punta Lara, - 34.8206566S, - 57.9675322W. 5 April 1974, Samsone Llanos coll. (MLP). Description Female (Figure 2a). Body length 1.30 mm, sparsely setose. Head, mesosoma and metasoma reddish brown. Antenna, mandibles, wing venation and legs yellowish brown. Head (Figure 2b). Lateral and inferior area of face smooth, scattered setose; in frontal view with slightly dorso-ventral ridge adjacent to torulus. Malar sulci simple. Antenna with 13 articles, filiform; F1 twice longer than F2; F2–F11 subequal in length; F4–F11 with rhinaria. Compound eyes glabrous. Occiput striated. Vertex smooth. Pronotum. Pronotal plate smooth. Medial bridge of pronotal plate narrow, with lateral foveae open and deep. Dorsal margin of pronotal plate straight. Pronotal carina absent. Sides of pronotum slightly striated and highly setose behind genae. Mesoscutum (Figure 2a,c). In lateral view as long as wide; smooth and shining. Notauli absent. Parapsidal hair line present. Parascutal impression inconspicuous. Mesoscutellum. Scutellar foveae at base sculptured, longer than broad. Lateral bars of scutellum striated with a small fovea beneath. Dorsal surface of scutellum (Figure 2c) weakly sculptured, reticulate-areolate; posterior margin round. Scutellar plate (Figure 2c) flat and smooth, not elevated above the scutellum, drop-shaped, covers 1/2 of scutellum in dorsal view; surface smooth without glandular pit; with a dark impression on the entire edge of scutellar plate. Mesopectum. Mesopleuron striated; with mesopleural carina and precoxal carina conspicuous, without subalar pit. Metapectal-propodeal complex. Metapleuron slightly striated; anteroventral cavity conspicuous; posterior margin raised and hairy. Propodeum elongate, setose except on the carinae; lateral propodeal carinae subparallel. Wings. Fore wings highly setose, hyaline, apical margin with hair fringes quite long. Hairless towards the base of wing. Marginal cell (Figure 2a) completely open, elongate, three times longer than broad Legs. Mid- and hind coxae with a patch of hairs dorsolateral and posterodorsal, respectively. Metasoma (Figure 2a). Smooth and shining. Hairy ring at base of syntergum complete, woolly, with a weak row of long setae on each side posteriorly; distally smooth. Variation. Body length 1.20–1.50 mm. Marginal cell twice or three times as long as wide. Hairy ring at base of syntergum complete or incomplete dorsally. Male. Unknown. Etymology. In reference to the colouring of the body. Biology. Host unknown. Distribution. (Figure 4). Argentina. It is known only from Ensenada, Buenos Aires province. This distribution belongs to the Pampean province (Chacoan subregion). Comments. Hydrelliaeucoila rufa sp. nov. differs from the other two species known from Argentina by presenting the following combination of characters: head and mesosoma reddish brown (black in H. egeria; dark brown in H. nonstriata sp. nov.); lateral and inferior area of face smooth (striated in H. egeria); head in frontal view with carina adjacent to torulus (absent in H. nonstriata sp. nov.); medial bridge of pronotal plate narrow (broad in H. egeria); with a dark impression on the entire edge of scutellar plate (without a dark impression on the entire edge in H. egeria and H. nonstriata sp. nov.).Published as part of Reche, Vanina & Gallardo, Fabiana, 2022, Two new species of the Neotropical genus Hydrelliaeucoila (Cynipoidea: Figitidae: Eucoilinae), pp. 227-239 in Journal of Natural History 56 (1 - 4) on pages 232-236, DOI: 10.1080/00222933.2022.2064249, http://zenodo.org/record/675827
Leis e planos urbanos na produção da cidade: o caso de Chapecó, SC
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-graduação em Urbanismo, História e Arquitetura da CidadeO presente trabalho discute a relação entre as Leis e Planos Urbanos e a organização espacial das cidades. Para isso, desenvolve a análise do Plano de Desenvolvimento Urbano de Chapecó, no Oeste de Santa Catarina, da metade da década de 70 e da Lei de Zoneamento aprovada no início da década de 80. O estudo objetiva compreender, à luz das condições sociais, políticas, econômicas de cada período, que tipo de repercussões espaciais essas Leis e Planos provocaram no espaço urbano de Chapecó, identificando seu papel como indutor de transformações urbanas no município, aliados aos interesses dos demais agentes urbanos, principalmente do capital agroindustrial. Sendo assim, a partir do estudo de um caso concreto relacionando os Planos e Leis Urbanas e sua proposta de intervenção em uma realidade urbana determinada, o trabalho contribui para a discussão dos alcances, limites, potencialidades e, principalmente, as repercussões espaciais atribuídas aos Planos e Leis Urbanas no espaço urbano, dando maior ênfase aos aspectos da distribuição sócio-espacial da população. The present work discusses the relationship between the Urban Laws and Plans and the spatial organization of the cities. For this, it develops the analysis of the Urban Development Planning of Chapecó, in the West of Santa Catarina, from the half of the 70´s and the approved Zoning Law at the beginning of the 80´s. The study aims to understand what kind of spatial consequences these Laws and Plans had provoked in the urban space of Chapecó, considering the social conditions, politics and economy of each period, identifying its roll as an inductive agent of urban transformations in the city, along with the interests of others urban agents, mainly the agroindustrial capital one. This way, from the study of a concrete case relating the Plans and Urban Laws and its proposal of intervention in a determined urban reality, the work contribute for the discussion of the reach, limits, potentialities and, mainly, the spatial consequences attributed to the Plans and Urban Laws in the urban space, putting more emphasis on the aspects of the partner-spatial distribution of the population
Pädagogische Briefe an einzelne Lehrer, Erzieher und Schulaufseher
No full text[Johann Wilhelm Reche]Verfasser ermittelt in: Holzmann/Bohatta: DA
Figure 3 in Two new species of the Neotropical genus Hydrelliaeucoila (Cynipoidea: Figitidae: Eucoilinae)
No full textFigure 3. Hydrelliaeucoila nonstriata Reche sp. nov. A- Habitus. B- Head in frontal view. C- Scutellar plate in dorsal view. D- Head and mesosoma in lateral view. E- Head in frontal view, arrow indicates torulus smooth.Published as part of Reche, Vanina & Gallardo, Fabiana, 2022, Two new species of the Neotropical genus Hydrelliaeucoila (Cynipoidea: Figitidae: Eucoilinae), pp. 227-239 in Journal of Natural History 56 (1-4) on page 234, DOI: 10.1080/00222933.2022.2064249, http://zenodo.org/record/675827
Flocking estimates for the Cucker–Smale model with time lag and hierarchical leadership
No full textWe analyze the Cucker-Smale model under hierarchical leadership in presence of a time delay. By using a Lyapunov functional approach and some induction arguments we will prove convergence to consensus for every positive delay τ. We also prove a flocking estimate in the case of a free-will leader. These results seem to point out the advantage of a hierarchical structure in order to contrast time delay effects that frequently appear in real situations
Figure 2 in Two new species of the Neotropical genus Hydrelliaeucoila (Cynipoidea: Figitidae: Eucoilinae)
No full textFigure 2. Hydrelliaeucoila rufa Reche sp. nov. A- Habitus; B- Head in frontal view; C- Mesosoma and scutellum in dorsal view, arrow indicates dark impression on the entire edge. D- Head in lateral view, arrow indicated slightly dorso-ventral ridge adjacent to torulus. E- Head and mesosoma in lateral view.Published as part of Reche, Vanina & Gallardo, Fabiana, 2022, Two new species of the Neotropical genus Hydrelliaeucoila (Cynipoidea: Figitidae: Eucoilinae), pp. 227-239 in Journal of Natural History 56 (1-4) on page 233, DOI: 10.1080/00222933.2022.2064249, http://zenodo.org/record/675827
Gesta Romanorum
No full textEste volumen de versos constituye la primera traducción al español de una obra de Giovanni Raboni, uno de los poetas italianos más importantes de la segunda mitad del siglo XX. Y además supone la puesta en escena en un solo volumen del puzzle que supuso su primer libro, Gesta Romanorum. El volumen se compone de los textos canónicos y de un cuantioso apéndice que reúne los textos que en su día formaron parte de GR, pero que nunca acompañaron a estos de manera exenta; una noticia inesperada, por lo tanto, también para el lector italiano
Pädagogische Briefe an einzelne Lehrer, Erzieher und Schulaufseher / [Johann Wilhelm Reche]
No full textVerfasser ermittelt in: Holzmann/Bohatta: DA
La recepción en Italia del Examen de Ingenios de Huarte de San Juan (1575): nuevas perspectivas
No full textEl medico Juan Huarte de San Juan desarrolló la teoría clásica de los humores en su celebre obra Examen de ingenios, donde argumentaba que cada hombre tenía una predisposición natural para ciertas profesiones, determinada por su ‘ingenio’, una capacidad innata y masculina influida por los humores. En el siglo xvii, el médico italiano Pompeo Caimo revisó el trabajo de Huarte en su obra Dell'ingegno humano (1629), donde criticó punto por punto las propuestas de Huarte; de este tratado no existe una edición moderna, y de hecho Caimo es recordado por otras obras. El refutó la idea de la inferioridad intelectual femenina, y reinterpretó los conceptos tradicionales sobre los temperamentos defendiendo la capacidad de las mujeres para el pensamiento crítico
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