1,539 research outputs found
Fibras de vidro a base de Li20 - Zr02 - BaO - Si02 recobertas com Nb205 para utilização em micro-extração em fase sólida
No full textTese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-graduação em QuímicaNeste trabalho são descritas as metodologias para obtenção e modificações da superfície de fibras de vidro de composição Li2O-ZrO2-BaO-SiO2. Apresenta-se também as aplicações destas fibras na determinação, por SPME, de fenol e de uma mistura de álcoois. Para obtenção das fibras de vidro construiu-se um equipamento, o qual baseia-se na técnica de estiramento. As fibras de vidro foram recobertas utilizando-se duas técnicas: Decomposição de Organometálicos, onde o etóxido de nióbio (V) foi empregado como reagente precursor do óxido de nióbio (V), e Deposição de Vapor Químico, na qual fez-se uso do cloreto de nióbio como precursor do óxido de nióbio (V).Utilizou-se da técnica de Microscopia Eletrônica de Varredura para avaliar a morfologia das fibras sem recobrimento e recobertas. O recobrimento com óxido de nióbio sobre a superfície das fibras foi estudado pela técnica de "Color Map" e as análises químicas realizadas pela Microssonda de Energia Dispersiva, ambas as técnica acopladas ao MEV. A Técnica de Micro-extração em Fase Sólida foi utilizada para avaliar a capacidade de adsorsão de compostos polares e apolares pelas fibras recobertas. Com os resultados obtidos, verficou-se que pela técnica de CVD obtem-se fibras com um recobrimento mais homogêneo e espesso. Estas fibras apresentaram melhor eficiência no processo de adsorção como verificado pelos resultados cromatográficos
Isospora ramphoceli Berto, Flausino, Luz, Ferreira & Lopes, 2010, n. sp.
No full text<i>Isospora ramphoceli</i> n. sp. <p> <b>Type host:</b> Brazilian tanager <i>Ramphocelus bresilius dorsalis</i> Sclater, 1855 (Aves: Passeriformes: Thraupidae).</p> <p> <b>Type locality:</b> Marambaia Island (23°04’S, 43°53’W), Rio de Janeiro, Brazil.</p> <p> <b>Site of infection:</b> Not investigated.</p> <p> <b>Type-material:</b> One-half of the oocysts were kept in 10% aqueous buffered formalin (v/v) and the other half in 70% ethanol according Duszynski & Gardner (1991). Both samples were deposited in the Parasitology Collection, in the Department of Animal Parasitology, at UFRRJ, located in Seropédica, Rio de Janeiro, Brazil. Phototypes and line drawings were deposited as well. The repository number is P-36/2009.</p> <p> <b>Etymology:</b> The specific epithet is derived from the generic name of the type host.</p> <p> <b>Description</b> (Figs 1 a–c; 2a–c)</p> <p> Oocyst shape (n = 41) spherical to sub-spherical; oocyst wall bilayered; wall thickness 1.2 (1–1.5); outer wall smooth, <i>c.</i> 2/3 of total thickness; L × W = 23.7 × 22.8 (22–26 × 21–24), L/W ratio = 1.0 (1.0–1.1); M, PG and OR: absent. Sporocyst shape (n = 41) ellipsoidal or slightly ovoidal; L × W = 16.0 × 11.4 (14–18 × 10– 13); L/W ratio = 1.4 (1.3–1.6); SB present, knob-like, prominent, 1.0 high × 2.0 wide; SSB present, large, homogeneous, 2.5 high <i>×</i> 4.0 wide; PSB absent; SR present, composed of granules of different sizes; SZ vermiform with 1 posterior SRB and centrally located N.</p> <p> <b>Remarks.</b> <i>Isospora ramphoceli</i> differs from other <i>Isospora</i> species from the same host (Table 1). In <i>I. andesensis</i> Templar, McQuistion & Capparella, 2004, <i>I. iridosornisi</i> Metzelaars, Spaargaren, McQuistion & Capparella, 2005, <i>I. sepetibensis</i> Berto, Flausino, Luz, Ferreira & Lopes, 2008 and <i>I. silvasouzai</i> Berto, Balthazar, Flausino & Lopes, 2009 all lack PG (Templar <i>et al.</i> 2004; Metzelaars <i>et al.</i> 2005; Berto <i>et al.</i> 2008; 2009b).</p> <p> <i>Isospora thraupis</i> Lainson, 1994, <i>I. marambaiensis</i> Berto, Flausino, Luz, Ferreira & Lopes, 2008, and <i>I. navarroi</i> Berto, Flausino, Luz, Ferreira & Lopes, 2009 have smaller SSB; <i>I. cadimi</i> Berto, Flausino, Luz, Ferreira & Lopes, 2009 has compartments within SSB; whereas in <i>I. ramphoceli</i> this structure is large and homogeneous (Table 1) (Lainson 1994; Berto <i>et al.</i> 2008; 2009a).</p> <p> Finally, <i>I.</i> tiesangui Berto, Flausino, Luz, Ferreira & Lopes, 2008, <i>I. sanhaci</i> Berto, Balthazar, Flausino & Lopes, 2009 and <i>I. sayacae</i> Berto, Balthazar, Flausino & Lopes 2009, all have a flattened SB, an elongated sporocyst and the SB is nipplelike (Berto <i>et al</i>. 2008; 2009 b). In <i>I. ramphoceli</i> the SB is knob-like and sporocysts are ellipsoidal or slightly ovoidal.</p>Published as part of <i>Berto, Bruno Pereira, Flausino, Walter, Luz, Hermes Ribeiro, Ferreira, Ildemar & Lopes, Carlos Wilson Gomes, 2010, Isospora ramphoceli n. sp. (Apicomplexa: Eimeriidae) from the Brazilian tanager (Aves: Passeriformes: Thraupidae) Ramphocelus bresilius dorsalis Sclater, 1855, pp. 57-62 in Zootaxa 2650</i> on pages 58-59, DOI: <a href="http://zenodo.org/record/198813">10.5281/zenodo.198813</a>
Giuseppe Berto. Cent'anni di solitudine
No full textIl libro raccoglie gli Atti del Convegno che si è tenuto nel 2015 sulla figura e sull'opera letteraria di Giuseppe Berto
Giuseppe Berto e la critica narrativa: l’introduzione a Canaletto
No full textL’autore del saggio commenta l’introduzione a Canaletto redatta da Giuseppe Berto per i Classici dell’arte Rizzoli. Per adempiere all’incarico, Berto non fa uso di un linguaggio specialistico, ma della prosa narrativa che più gli è congeniale. Il saggio dimostra come Berto scelga di non introdurre, ma di ‘raccontare’ Canaletto, poiché tratta la sua vicenda umana alla stregua di quella di un personaggio letterario, sviluppa i temi tipici dei suoi romanzi maggiori e mette in atto un processo di immedesimazione con il pittore veneto.The author of the essay comments on the introduction to Canaletto written by Giuseppe Berto for the Classici dell’arte series, published by Rizzoli. In order to fulfill the task, Berto does not use a technical language; on the contrary, he writes a narrative prose. The essay demonstrates how Berto chooses not to introduce, but to ‘narrate’ Canaletto, because he treats his story as a literary character’s one, develops the typical themes of his major novels and begins an identification process with the Venetian painter
Il Male Oscuro by Giuseppe Berto: among literature and psychoanalysis
No full textopenLa tesi tratta del libro "Il male oscuro" dell'autore Giuseppe Berto analizzato attraverso un duplice approccio: letterario e psicoanalitico.
La metodologia adottata si fonda su un'analisi testuale integrata da riferimenti alla teoria psicoanalitica, con particolare attenzione alle riflessioni di Freud.
La tesi ripercorre, oltre che il percorso psicoanalitico di Berto, anche l'evoluzione del romanzo introspettivo del Novecento.The thesis deals with the book "Il male oscuro" by the author Giuseppe Berto analyzed through a dual approach: literary and psychoanalytic.
The methodology adopted is based on a textual analysis integrated with references to psychoanalytic theory, with particular attention to Freud's reflections.
The thesis retraces not only Berto's psychoanalytic path, but also the evolution of the introspective novel of the twentieth century
Fracture assessment of U-notches under three point bending by means of local energy density
No full textThe main purpose of the paper is twofold. First, to provide a new set of experimental results on fracture of U-notched samples, made of two different materials; second, to apply a fracture criterion based on the strain energy density (SED) averaged over a control volume to assess the fracture load of blunt-notched components under three point bending. Two different materials are considered in the tests: a composite material (Al-15%SiC) tested at room temperature and a steel with a ferritic-pearlitic structure tested at -40°C. All samples are weakened by U-notches characterized by different values of notch root radius and notch depth. The theoretical loads to failure as determined according to the SED criterion are compared with the experimental data from more than 40 static tests and with a SED-based scatter band recently reported in the literature for a number of materials exhibiting a brittle behaviour under static loads. © 2010 Elsevier Ltd
Isospora attilae Rodrigues, Silva, Lopes, Berto, Luz, Ferreira & Lopes, 2015, n. sp.
No full textIsospora attilae n. sp. Type host. Grey-hooded attila Attila rufus (Vieillot, 1819) (Aves: Passeriformes: Tyrannidae). Type locality. Marambaia Island (23 °04'S, 43 ° 53 'W), Rio de Janeiro, Brazil. Site of infection. Not investigated Type-material. Oocysts in 70–100 % ethanol, phototypes and line drawings are deposited and available (http:// r 1.ufrrj.br/lcc) in the Parasitology Collection of the Laboratório de Coccídios e Coccidioses, at UFRRJ, located in Seropédica, Rio de Janeiro, Brazil. Photographs of the type-host specimens (symbiotypes) are deposited in the same collection. The repository number is P- 57 / 2015. Etymology. The specific epithet is derived from the generic name of the type host. Description (Figs 1 a–c; 2 a–c). Oocyst shape (n = 17) sub-spherical to ellipsoidal; oocyst wall bilayered; wall thickness 1.3 (1.1–1.5); outer wall smooth, c. 2 / 3 of total thickness; L × W = 20.3 × 19.0 (18–22 × 18–21), L/W ratio = 1.07 (1.0– 1.2); M, and OR absent, PG present, one or two. Sporocyst shape (n = 13) ellipsoidal; L × W = 13.5 × 7.9 (12– 15 × 7–9); L/W ratio = 1.73 (1.6–1.9); SB present, knob-like, 1.0 high × 2.0 wide; SSB present, rounded to trapezoidal, 2.5 high × 4.0 wide; PSB absent; SR present, composed of granules of different sizes; SZ vermiform with 1 posterior SRB and centrally located N. Remarks. Isospora attilae differs from other Isospora species from the passerines of same family (Table 1). Isospora mionectesi has oocysts and sporocysts larger than I. attilae. Isospora feroxis is very similar to I. attilae, however, it can be distinguished by SB flattened and ovoidal shape of sporocyst (Berto et al., 2009 a; Berto et. al. 2009 b). Coccidia Host Reference Oöcysts Shape Measurements (µm) Shape index Wall (µm) Polar granule sub- spheroidal 18.7 × 18.0 1.1 c. 1.2 present (18–20 × 17–20) (1.0– 1.1) usually 2 Isospora Mionectes Berto et al. ellipsoidal 28.3 × 21.2 1.3 bi-layered, present, 1 or mionectesi rufiventris Cabanis, (2009 b) (23-31 × 19-23) (1.2–1.4) c. 1.3 2 1846 Isospora ovoidal 11.7 × 8.5 present present diffuse feroxis (11–13 × 8-10) flattened prominent, Isospora Mionectes Berto et al. elongate 19.7 × 11.7 present present subspheric mionectesi rufiventris Cabanis, (2009 b) ellipsoidal (17-22 × 10-13) rounded prominent al, 1846 compact Isospora Attila rufus current work ellipsoidal 13,5 × 7,9 present present rounded diffuse attilae (Vieillot, 1819) (12-15 × 7-9) knob like to trapezoidalPublished as part of Rodrigues, Mariana Borges, Silva, Lidiane Maria Da, Lopes, Bruno Do Bomfim, Berto, Bruno Pereira, Luz, Hermes Ribeiro, Ferreira, Ildemar & Lopes, Carlos Wilson Gomes, 2015, A new species of Isospora Schneider, 1881 (Apicomplexa: Eimeiriidae) from the grey-hooded attila Attila rufus Vieillot, 1819 (Passeriformes: Tyrannidae) on the Marambaia island, Brazil, pp. 193-196 in Zootaxa 4034 (1) on pages 194-195, DOI: 10.11646/zootaxa.4034.1.10, http://zenodo.org/record/23586
Green Roofs vs. Cool Roofs. Economic evaluation of private and public benefits derived from industrial buildings retrofit in Italian different climate conditions
No full textExtensive green roofs (GR) represent an interesting option for industrial building refurbishment, providing private and social benefits. In Italy, green roof technology is uncommon, because of high installation cost that drives towards more traditional solutions, such as cool roofs (CR). A thorough valuation of green roofs benefits in urban contexts is required to encourage their diffusion. The valuation of private and social performances of GR versus CR has been performed in industrial settlements close to residential areas in the cities of Trieste, Ancona and Palermo, where these cities are characterised by different climate conditions. These case studies have allowed us to explore all the main aspects, both private and social, that affect convenience of adopting a GR compared to a CR. The private cash-flow analysis demonstrates that a private investor has a poor convenience to implement GR rather than CR. On the other side, social cost-benefit analysis shows a positive net present value due to the GR externalities, in particular the aesthetic improvement of industrial settlements perceived by the residents of the surroundings, valuated with their willingness to pay for a diffusion of GRs. The social advantage to adopt a GR compared to a CR let the calculation of the economic incentives amount to promote the spread of GR in the Mediterranean area. The incentive analysed is the reduction of local property tax. This reduction of amount owed by a private investor could be financed with an increase of property tax on residential real estate (Tax Increment Financing), favoured by the aesthetic improvement of industrial settlements. The comparison between private and social performances of a GR versus a C R in three different climate contexts is very interesting to identify the main drivers of private and social GRs' benefit and to calibrate the incentives to favour the diffusion of GR
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