1,083 research outputs found
Pensamento e Violência Política no Brasil: uma reflexão a partir dos assassinatos de Jaime Calado e Marielle Franco
No full textDissertação para obtenção de grau de Mestre em Ciência PolíticaEssa dissertação procura compreender um determinado tipo de pensamento político brasileiro e a violência - também política – no país a partir de dois casos de assassinatos em diferentes períodos da história. A questão principal é sobre o que as narrativas polarizadas que permeiam os eventos revelam sobre este pensamento político. Os casos analisados referem-se à morte do jornalista e ativista Jaime Calado, em um episódio que envolveu o confronto entre integralistas e comunistas em Fortaleza – Ceará - em 1949 e a morte de Marielle Franco, vereadora da cidade do Rio de Janeiro, RJ, em 2018. Esse trabalho procurou olhar sobre os discursos erigidos a partir dos dois casos e relaciona tais narrativas a ideias políticas similares que os permeiam, para além de suas circunstâncias históricas imediatas. Esse olhar buscou nas obras de Hannah Arendt, nomeadamente Origens do Totalitarismo e Sobre a Violência, bem como de Walter Benjamin em suas Teses da História e escritos também sobre a violência, o arcabouço teórico para embasar uma investigação de caráter interpretativista. Os eventos em questão foram abordados a partir de jornais de época, no caso de Jaime Calado, material levantado pelo jornalista Stenka do Amaral Calado e editado em livro por este autor e seu irmão, Vladimir Calado, em 2019, sob o título CALADO! O caso de Marielle Franco foi abordado tanto pelo material jornalístico sobre este, quanto por publicações acadêmicas sobre o assunto. No entanto este trabalho trata dos casos não em suas circunstâncias imediatas, mas em uma investigação ancorada na discussão sobre ideias políticas.This dissertation aims to understand a certain type of Brazilian political thought and violence - also political - in the country from two cases of murders in different periods of history. The main question is about what the polarized narratives that permeate the events reveal about this political thought. The analyzed cases refer to the death of the journalist and activist Jaime Calado, in an episode that involved the confrontation between integralists and communists in Fortaleza - Ceará - in 1949 and the death of Marielle Franco, councilwoman of the city of Rio de Janeiro, RJ, in 2018. This work sought to look at the discourses erected from the two cases and relates such narratives to similar political ideas that permeate them, beyond their immediate historical circumstances. This look sought in the works of Hannah Arendt, namely Origins of Totalitarianism and On Violence, as well as Walter Benjamin in his Theses of History and writings also on violence, the theoretical framework to base an interpretative investigation. The events in question were addressed from period newspapers, in the case of Jaime Calado, material raised by journalist Stenka do Amaral Calado and edited in book by this author and his brother, Vladimir Calado, in 2019, under the title CALADO! The case of Marielle Franco was approached both by journalistic material on this, and by academic publications on the subject. However, this work deals with the cases not in their immediate circumstances, but in an investigation anchored in the discussion of political ideas.N/
Pensamento e Violência Política no Brasil: uma reflexão a partir dos assassinatos de Jaime Calado e Marielle Franco
No full textDissertação para obtenção de grau de Mestre em Ciência PolíticaEssa dissertação procura compreender um determinado tipo de pensamento político brasileiro e a violência - também política – no país a partir de dois casos de assassinatos em diferentes períodos da história. A questão principal é sobre o que as narrativas polarizadas que permeiam os eventos revelam sobre este pensamento político. Os casos analisados referem-se à morte do jornalista e ativista Jaime Calado, em um episódio que envolveu o confronto entre integralistas e comunistas em Fortaleza – Ceará - em 1949 e a morte de Marielle Franco, vereadora da cidade do Rio de Janeiro, RJ, em 2018. Esse trabalho procurou olhar sobre os discursos erigidos a partir dos dois casos e relaciona tais narrativas a ideias políticas similares que os permeiam, para além de suas circunstâncias históricas imediatas. Esse olhar buscou nas obras de Hannah Arendt, nomeadamente Origens do Totalitarismo e Sobre a Violência, bem como de Walter Benjamin em suas Teses da História e escritos também sobre a violência, o arcabouço teórico para embasar uma investigação de caráter interpretativista. Os eventos em questão foram abordados a partir de jornais de época, no caso de Jaime Calado, material levantado pelo jornalista Stenka do Amaral Calado e editado em livro por este autor e seu irmão, Vladimir Calado, em 2019, sob o título CALADO! O caso de Marielle Franco foi abordado tanto pelo material jornalístico sobre este, quanto por publicações acadêmicas sobre o assunto. No entanto este trabalho trata dos casos não em suas circunstâncias imediatas, mas em uma investigação ancorada na discussão sobre ideias políticas.This dissertation aims to understand a certain type of Brazilian political thought and violence - also political - in the country from two cases of murders in different periods of history. The main question is about what the polarized narratives that permeate the events reveal about this political thought. The analyzed cases refer to the death of the journalist and activist Jaime Calado, in an episode that involved the confrontation between integralists and communists in Fortaleza - Ceará - in 1949 and the death of Marielle Franco, councilwoman of the city of Rio de Janeiro, RJ, in 2018. This work sought to look at the discourses erected from the two cases and relates such narratives to similar political ideas that permeate them, beyond their immediate historical circumstances. This look sought in the works of Hannah Arendt, namely Origins of Totalitarianism and On Violence, as well as Walter Benjamin in his Theses of History and writings also on violence, the theoretical framework to base an interpretative investigation. The events in question were addressed from period newspapers, in the case of Jaime Calado, material raised by journalist Stenka do Amaral Calado and edited in book by this author and his brother, Vladimir Calado, in 2019, under the title CALADO! The case of Marielle Franco was approached both by journalistic material on this, and by academic publications on the subject. However, this work deals with the cases not in their immediate circumstances, but in an investigation anchored in the discussion of political ideas.N/
Polypropionates from Bulla occidentalis: chemical markers and trophic relationships in cephalaspidean molluscs
No full textA chemical investigation on the cephalaspidean Bulla occidentalis from the Gulf of Mexico led to known
niuhinones A (1) and B (2) along with a new acyclic polypropionate, named niuhinone C (3). A complete
NMR assignment of niuhinone A has been achieved by spectroscopic experiments, thus revising the D14
configuration. The occurrence of structurally related polypropionates in Bullidae species from different
geographical areas is in agreement with a de novo origin in this family of molluscs and adds a further
piece of evidence on prey–predator relationships among cephalaspidean
Lysmata jundalini Rhyne, Calado & Santos, 2012, sp. nov.
No full textLysmata jundalini sp. nov. (Figures 1–4) Type material. Holotype: adult ovigerous hermaphrodite 6.49 mm CL (25.56 mm TL; 3.66 mm rostrum; 6.49 mm CW) [MNHN-UL B 12 -004200]. Paratypes: 4 males 3.81–4.36 mm CL (17.84–20.50 mm TL; 2.50–2.92 mm rostrum) [MNHN-ULMB 12 -004201]. The specimens were collected by Dr. Nikolaos Schizas on 20 /04/ 2009 at the reef crest around Cayo Enrique, La Parguera, Puerto Rico (7 ° 56.22 N / 67 ° 03.06W), at a depth of 0.5 m. Diagnosis. Integument not rigid and carapace smooth without supraorbital and hepatic tooth but with antennal and, generally, pterygostomian tooth. Rostrum armed dorsally and usually ventrally, without ventral blade or tongue-like lobe extending ventrally from lateral carina. Mandible without palp and incisor process. First maxilliped with caridean lobe clearly discrete, epipod bilobate. Pereiopods without exopods. Second pereiopods symmetrical and fingers no longer than palm. Pleon with 1 st pleuron entire and 6 th somite without prominent spines. Telson bearing 2 pairs of dorsolateral spines. Description. A small shrimp (Fig. 1), with carapace smooth as long as high at the posterior end, glabrous, with posterolateral margin broadly rounded and anteriorly slightly funnelled. Rostrum straight, slightly curved upwards at tip with a lateral carina, reaching the end of the third segment of the antennular peduncle, 0.56 times as long as carapace in the female and 0.68 times for the males; with 6–7 acute dorsal teeth, being 3 in postrostral position, ventral margin with 2–3 teeth, close to rostrum tip; stiff setae arising from rostral dorsal carina between teeth (Fig. 2 a, b). Antennal tooth long and sharply separated from ventral angle of the orbit. Pterygostomial tooth well developed and acute, with a row of plumose setae on the anterior-ventral margin (Fig. 2 a, b). Eyes moderately large and rounded, divergent not reaching dorsal margin of rostrum. Pleon smooth (Fig. 1), the first three pleomeres with rounded margins, fourth and fifth with sharp posterolateral tooth, sixth with acute posteroventral tooth and a pair of posterior teeth on each side of telson. Telson (Fig. 2 k) about 1.7 times as long as sixth pleomere; lateral margins of telson with many long setae on distal half and 3 long setae on the middle at proximal; dorsal surface with two pairs of spines, the first pair usually on 0.4 and second one on 0.7 of telson; posterior margins with a pair of short acute spines, and one pair of long acute ones, 2 long setae present between the long and strong spines, above that it presents six long and fine spines and three small ones. Basal segment of the antennular peduncle with stylocerite just reaching the border of this segment and greatly overreaching the eye. Lateral antennular flagellum with aesthetascs extending from 4 th segment to accessory branch. Dorsal antennular flagellum with accessory branch 3 -segmented, 24 segments before bifurcation; ratio length of accessory branch/length of flagellum before bifurcation is 0.15 (Fig. 2 c). Antenna with scaphocerite slen- der more than 4 times as long as wide; scaphocerite distal tooth acute distinctly overreaching blade (Fig. 2 d). Mandibles unequal but subsimilar, without palp and incisor process. Maxillula (Fig. 2 e) with slender, curved palp, with 1 terminal strong plumose and 9 simple setae; upper lacinia broad, with 8 stout, dentate marginal spines and, two rows of more slender setae; lower lacinia slender, with row of long simple setae along the dorsal and inner margin. Maxilla (Fig. 2 f) with elongated palp, with 2 long plumose and 2 short simple seta; inner lacinia bilobed, with row of simple setae on distal margins, scaphognathite well developed, very large and not very broad, with 91 plumose setae along the margin. First maxilliped (Fig. 2 g) with basal endite broad with a row of dense setulose setae; exopod with caridean lobe small, not distinctly separated from flagellum, with 9 sparsely plumose marginal setae, flagellum slender, with several plumose setae on the distal half; epipod bilobed. Second maxilliped (Fig. 2 h) with endopod stout, dactylar segment terminal, distally elongated, with rows of long marginal and submarginal setae; propod longer than wide, with row of densely distributed setae; carpus short, with 2 simple small setae; merus with 3 long setae; basis with tuff of dense setae; exopod long and slender with plumose setae along external margin; coxa medially rounded, with sub quadrate large epipod laterally. Third maxilliped (Fig. 2 i) with long and slender endopod, distal segment with 9 spines distributed terminally; exopod short, slender, reaching more than 2 / 3 of the proximal endopod segment, with plumose setae on the distal half and 3 short and simple setae near base. First pereiopod (Figs 3 a, a’) with simple chela, reaching beyond the end of scaphocerite; palm about 3 times as long as dactylus, five times as long as high; carpus almost as long as merus; merus with row of long spines. Second pereiopod (Figs 3 b, b’) with carpus twice as long as merus, composed of 28 articles; merus subequal to ischium in length, composed of 13–17 articles; ischium with row of 12 spinules. Third to fifth pereiopods similar, decreasing in length from third to fifth. Third pereiopod (Figs 3 c, c’) with unarmed ischium; merus with 8 stout ventrolateral spines, almost two times as long as carpus; propodus slightly shorter than merus with spines and spinules along ventral and ventromesial margins; dactylus about 1 / 6 length of propodus, biunguiculate, with three additional slen- der spines on flexor margin, terminal unguis longer than ventral unguis. Fourth pereiopod (Fig. 3 d) with 6 stout spines along ventrolateral margin of merus, which is almost two times as long as carpus; propodus as long as merus with 4 spines distally on ventral margin. Fifth pereiopod (Fig. 3 e) merus with 4 stout spines along lateral margin. Endopod of first pleopod (Fig. 3 f) about half as long as exopod with row of marginal setae and nine dorsal setae. Appendix masculina (Fig. 2 j) on second pleopod of males almost the size of the endopod and two times as long as appendix interna. Appendix masculina with one setose spine near base, four simple setae on distal half and twelve setose spines at posterior end. Other pleopods (Fig. 3 g) with endopod slightly smaller than exopod, both with plumose setae on margins. Uropod (Fig. 3 h) protopod with lateral tooth which has three long setae on margin; exopod with daeresis bearing acute tooth laterally, adjacent to distolateral spine; endopod subequal to exopod length. Color in life. Body translucent with wide rust colored longitudinal stripes (Fig. 4 a, b); lateral carapace with longitudinal strips, lacking transverse bands; dorsal with heavy singular inverted U-shaped band, abdominal pleura with wide longitudinal stripes (dorsal view showing three, with one running along entire length of abdomen reaching into carapace not connecting to U-shaped band), pleuron without conspicuous transverse bands or U-shaped pattern, pleuron transversed by a wide row of spots, often fading shortly after collection (Fig. 4 b); ventral margin of abdomen, and margin of telson and uropods with brilliant red outlining. Dorsal of third to fifth pereiopods with bright orange coloration; coxa of fourth pereiopod with conscious blue spot, spilling over to the coxa of the third and fifth pereiopod, antennular flagellum with blue hue (refer Fig. 4 a). Early stage embryos and developing ovotestis green. Size. Hermaphrodites to at least 6.49 mm CL (25.56 mm TL; 3.66 mm rostrum) males 3.81–4.36 mm CL (17.84–20.50 mm TL; 2.50–2.92 mm rostrum). Etymology. The new species is named after our colleague and friend Dr. Junda Lin in recognition of his work on the aquaculture and sexual biology of Lysmata. When translated from Mandarin, Junda means “gentleman”. In this way, we have combined the given and family name of this remarkable biologist, mentor, colleague, friend and true gentleman, to the specific name jundalini. Type locality and distribution. The holotype and paratypes were collected from the reef crest of Enrique Reef off the University of Puerto Rico, Mayagüez, Isla Magueyes Laboratories in 0.5 meters of water. The species has also been collected or observed throughout the Caribbean, from Yucatan peninsula in Mexico (Nuno Simões pers. comm.) to Panama (De Grave & Anker pers. comm). Habitat and ecology. The new species is commonly found in the rubble zone on the reef crest and hiding in the close vicinity of, but not on, the sea anemone Stichodactyla helianthus, as well as associated with moray eels in isolated patch reefs along the southwestern coast of Puerto Rico and wider Caribbean. This species is also often found in dense aggregations in Porites corals (Nuno Simões, pers. comm.).Published as part of Rhyne, Andrew L., Calado, Ricardo & Santos, Antonina Dos, 2012, Lysmata jundalini, a new peppermint shrimp (Decapoda, Caridea, Hippolytidae) from the Western Atlantic, pp. 71-79 in Zootaxa 3579 on pages 72-77, DOI: 10.5281/zenodo.21367
Seismic behaviour of steel storage racking systems
No full textpeer reviewedAt present, there are technical limitations in the field of safety and design of storage racks in seismic areas. To solve some of these limitations, the EU sponsored through the Research Fund for Coal and Steel an RTD project titled “Storage Racks in Seismic Areas” (acronym SEISRACKS). This paper describes the main research activities and obtained results of the project, initiated in December 2004 and terminated in June 2007
Laser technology for innovative connections in steel construction : An overview of the project LASTEICON
No full textCircular hollow sections present several advantages, such as uniform behavior in all directions or possibility to obtain composite behavior by concrete infill, and hence high strength, stability and good fire resistance. Moreover, their aesthetic appeal has a great potential for decision makers (architects, building owners...). However, their adoption in the practice often suffers from the complexity and high cost of their joint detailing. The project Lasteicon aims at proposing a novel and simple jointing solution with reduced complexity and fabrication costs, to be adopted for connections between CHS-columns and I-beams or for truss structures with CHS chords. The proposed solution relies on a versatile laser cutting and welding technology. The present contribution gives a broad overview of different aspects of the project: assessment of fabrication procedures and tolerances, experimental testing, numerical investigation and compar-ison with traditional design and fabrication methods in terms of structural performances in normal and cyclic loading
An approach to ecosystem-based management in maritime spatial planning process
No full textSustainable development is the framing concept assuring that resources are exploited while maintaining the ability of these natural resources to provide for future generations. With human dependence on marine resources increasing, Ecosystem-Based Management (EBM) has been identified as a suitable approach to ensure sustainable development. In order to achieve this, the core principles and elements of EBM should be operational in the maritime/marine spatial planning (MSP) process to ensure that human activities in marine space are ordered to attain ecological, economic and social objectives. However, policies from various states and organizations sometimes do not set a clear precedence for translating principles of EBM and present different and complex approaches to an ecosystem-based marine spatial planning (EB-MSP). Again, a feasible methodology for EBM to be operational in MSP is still vague. This paper therefore presents results from a survey and review of MSP initiatives in Europe, Asia and the Americas. Results showed that essential MSP steps and elements such as adaptive management, setting of planning boundaries, understanding and analysing the ecosystem and future conditions are not fully operational. This paper focuses on a methodology for EB-MSP and gives recommendations on how to ensure that EBM is operational at each stage of an MSP process. It stresses the importance of setting planning boundaries beyond jurisdictional borders to consider bio/eco-regions and cover near-shore waters, the need to have a cross-sector integration, understanding the ecosystem through having an ecosystem service perspective and having a legal framework to ensure that results from monitoring and evaluating of plans are adapted through review and revision
U-shaped steel plate dissipative connection for concentrically braced frames
No full textIn concentrically braced frames, the use of dissipative connections allows to efficiently dissipate the seismic energy in earthquake scenarios and subsequently, to reduce the costs in the rehabilitation of the structure. To this end, U-shaped steel plates are simple and efficient connection components where significant dissipation of seismic energy can take place through the inelastic flexural deformation of the plate. This paper presents experimental results on the isolated U-shaped steel plate connections and on single-story concentrically braced frame (real scale) including the U-shaped steel plate to connect braces to adjacent members. The executed tests considered both monotonic and cyclic loading. The results highlight the efficiency of the U-shape steel plate to dissipate the energy input through inelastic deformations. On the other hand, the cyclic tests show potential fatigue behavior, as the deformation capacity is significantly reduced with repeated loading and increasing stress amplitude, requiring thus specific attention in practical design situations.The research leading to these results has received funding from the European Union’s Research Fund for Coal and Steel (RFCS) research programme under CEC agreement N° 7210-PR-316 (The INERD project) and the grant agreement N° 709343 (INNOSEIS).Henriques, J (corresponding author), Univ Hasselt, Fac Engn Technol, CERG, Hasselt, Belgium
Laser technology for innovative connections in steel construction: An overview of the project LASTEICON
No full textBiosynthetic Evidence Supporting the Generation of Terpene ChemoDiversity in Marine Mollusks of the genus Doriopsilla
No full textThis paper reports the study of terpene biosynthesis in the marine nudibranch Doriopsilla pelseneeri. In ViVo feeding
experiments with 13C-glucose proved the de noVo origin of the terpene metabolites via a mevalonate pathway.
Characterization of the stereochemical relationship of the new acetyl pelseneeriols (7 and 8) suggests a two-step mechanism
for the sesquiterpene cyclization, leading to a slight refinement of terpene tailoring in this family of marine invertebrates
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