Calling behavior and parasite intensity in Treefrogs, Hypsiboas prasinus

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Desenvolvimento vegetativo de quatro espécies de grama irrigadas com efluente de estação de tratamento de esgoto doméstico

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

O vocabulário ornamental de Antônio José Landi: um álbum de desenhos para o Grão Pará

A arquitetura da cidade de Belém, no Pará, da segunda metade do século XVIII é marcada pela obra do arquiteto italiano Antônio José Landi responsável pelo projeto e construção, ou reforma, de edificações que marcam a paisagem da cidade até os dias atuais. Ao analisar a bibliografia publicada a respeito do artista, é possível notar uma flutuação entre os autores no que diz respeito à classificação de seu estilo artístico. É possível atribuir esse fato às influências recebidas pelo arquiteto ao longo de sua vida na Europa, o que imprimiu em sua linguagem elementos de várias correntes artísticas. É objetivo desse trabalho, a partir de um estudo sistematizado dos ornatos utilizados pelo arquiteto, perceber seu vocabulário ornamental e fornecer então fundamentos para estudos a respeito das influências que a obra landiana pode ter provocado na arte paraense. Para tanto, reuniram-se os ornatos em quatro grupos a fim de facilitar a visualização de seu vocabulário e, consequentemente, de sua linguagem ornamental. Vasta foi sua produção entre Itália, Portugal e Brasil, entretanto, foram priorizados os ornamentos utilizados na obra realizada em terras brasileiras, suas características, sua utilização e suas variações. A metodologia empregada consistiu de pesquisa bibliográfica, levantamento e análise dos desenhos realizados no Brasil e registro fotográfico e análise das obras executadas em Belém. Ao final da pesquisa, conclui-se que o italiano desenvolveu sua arte, com o uso de um vocabulário ornamental cuja origem teve suas raízes nas influências artísticas europeias que se amoldaram ao ambiente amazônico, suas limitações de materiais e mão-de-obra.

Variable assessment of wing colouration in aerial contests of the red-winged damselfly Mnesarete pudica (Zygoptera, Calopterygidae)

Wing pigmentation is a trait that predicts the outcome of male contests in some damselflies. Thus, it is reasonable to suppose that males would have the ability to assess wing pigmentation and adjust investment in a fight according to the costs that the rival may potentially impose. Males of the damselfly Mnesarete pudica exhibit red-coloured wings and complex courtship behaviour and engage in striking male– male fights. In this study, we investigated male assessment behaviour during aerial contests. Theory suggests that the relationship between male resource-holding potential (RHP) and contest duration describes the kind of assessment adopted by males: self-assessment, opponent-only assessment or mutual assessment. A recent theory also suggests that weak and strong males exhibit variations in the assessment strategies adopted. We estimated male RHP through male body size and wing colouration (i.e. pigmentation, wing reflectance spectra and transmission spectra) and studied the relationship between male RHP and contest duration from videodocumented behavioural observations of naturally occurring individual contests in the field. The results showed that males with more opaque wings and larger red spots were more likely to win contests. The relationships between RHP and contest durations partly supported the self-assessment and the mutual assessment models. We then experimentally augmented the pigmented area of the wings, in order to evaluate whether strong and weak males assess rivals’ RHP through wing pigmentation. Our experimental manipulation, however, clearly demonstrated that strong males assess rivals’ wing pigmentation. We finally suggest that there is a variation in the assessment strategy adopted by males

Variable assessment of wing colouration in aerial contests of the red-winged damselfly Mnesarete pudica (Zygoptera, Calopterygidae)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

A ornamentação contemporânea em arte e design: função estética, anagógica, terapêutica

Taking as a starting point the reflection on the ornament, is delineated an interpretative analysis of delimitation between art and design in the extent of the aesthetics. Presupposing the ornament as an elementary and universal form of the all aesthetics’ manifestations, trying to work, through recent contributions and in an unified way, concepts regarding the aesthetics in parallel with the phenomenon of the perception. The ornament as element previously “ordered” front to the organization need that the interpretation demands, it constitutes fertile philosophical instrument, for all the art forms and of design, which seeks to provide an aesthetic sensation. Returned to the thoughtful function, the ornament has as essential purpose to stimulate the aesthetic experimentation, capable to induce the perception to subtler states of conscience similar of to the ecstasy, where the spirit from whom contemplates, can live experiences of extreme freedom and intense pleasure. . Establishing semiotics foundations capable of evidencing a function anagogic-therapeutics in the action of conceiving and to meditating, alternately, an object with function strictly ornamental (aesthetics), also intending the reflection of moral stamp on the ornamental concept of the decency as conciliatory solution in the intersection between art and design, concerning the creativity of the formative process.

A lógica matemática da arte ornamental: uma relação de equivalência a partir da estrutura atômica dos cristais

Based in aesthetic relationship between concepts of content and form intends to establish an relationship of analogy between ornaments and crystals. With the objective of building an theoretical investigation of relating the dynamics that happens in the crystals´ atoms to the symmetrical intervals of the ornamental patterns, it tries to draw a reasoning line that is going from the ‘Idea’ of Plato and ‘poiésis’ of Aristotle, until Hegel's philosophical enlargement, that admits the aesthetics as a science of the art integrated in a metaphysical process. Inherent to this question intends, in interrelation terms between aesthetics and metaphysics, content as being intelligent beginning, energy, and form as primitive element, matter, in order to evidence the possibility to calculate the same present symmetries in the ornamental arts like in the nature.

Sincretismo cultural na joalheria afro-brasileira

Body adornment has been used as a ornament, ritualistic object, religious icon or as symbol demonstration of status and power in many different cultures. In Brazil, own visuality develops from the cultural syncretism. Thus, together with the mode of dress, the african-Brazilian jewelry acquires peculiarities derived from cultural identities that coexist. This paper proposes a look at africanBrazilian jewelry through visual representation in some works of Jean-Baptiste Debret - French painter member of the French Artistic Mission that registered objects and everyday scenes of slaves and freemen, of poor whites and aristocrats of Rio de Janeiro in the early nineteenth century. We are looking for jewelry as a historical record of lifestyles from a time and place with a social, economic and cultural local configuration.

INVESTIGATING THE PRESENCE OF THE HISTORY OF SCIENCE IN UNIVERSITY GENERAL CHEMISTRY TEXTBOOKS

INVESTIGATING THE PRESENCE OF THE HISTORY OF SCIENCE IN UNIVERSITY GENERAL CHEMISTRY TEXTBOOKS. This paper aims at analyzing the history of science content of three general chemistry textbooks used in Brazilian universities: the translations of Kotz and Treichel's Chemistry & Chemical Reactivity, Atkins and Jones's Chemical Principles, and Garritz and Chamizo's Quimica. Results revealed different trends for the inclusion of history of science in chemistry teaching. Katz & Treichel and Atkins & Jones used history mainly as curiosity and ornament. Garritz & Chamizo adopted the historical approach as one of the organizing axis of their textbook. Nevertheless, the historical content of the three textbooks may be criticized from current historiographical standpoint.

Investigando a presença da história da ciência em livros didáticos de Química Geral para o ensino superior

This paper aims at analyzing the history of science content of three general chemistry textbooks used in Brazilian universities: the translations of Kotz and Treichel's Chemistry & Chemical Reactivity, Atkins and Jones's Chemical Principles, and Garritz and Chamizo's Química. Results revealed different trends for the inclusion of history of science in chemistry teaching. Kotz & Treichel and Atkins & Jones used history mainly as curiosity and ornament. Garritz & Chamizo adopted the historical approach as one of the organizing axis of their textbook. Nevertheless, the historical content of the three textbooks may be criticized from current historiographical standpoint.

Celti e Reti tra V e I sec. a.C. Oggetti tipo LaTène all'interno della cerchia culturale Fritzens-Sanzeno (arco alpino centro-orientale)

The study of the objects LaTène type found in middle-eastern alpine region (Trentino Alto Adige-Südtirol, Engadina, North Tirol, Voralberg and Villach basin) is aimed to a better comprehension of the complex net of relationships established among the Celts, settled both in the central Europe territories and, since the IV century b.C., in the Po Plain, and the local populations. The ancient authors, who called the inhabitants of this area Raeti, propose for this territory the usual pattern according to which, the population of a region was formed consequently to a migration or was caused by the hunting of pre-existing peoples. The archaeologists, in the last thirty years, recognized a cultural facies typical of the middle-eastern alpine territory during the second Iron Age, and defined that as Fritzens-Sanzeno culture (from the sites of Fritzens, Inn valley, and Sanzeno, Non Valley). The so-called Fritzens-Sanzeno culture spread out without breaks from the material culture of the final Bronze Age and the first Iron Age. This local substratum, characterized by a ceramic repertoire strongly standardized, by peculiar architectural solutions and by a particular typology of rural sacred places (Brandopferplätze), accepted, above all during the second Iron Age, the strong influences coming from the Etruscan world and from the Celtic one (evident in the presence of objects of ornament, of glass artefacts, of elements of the weaponry and of coins). The objects LaTène type become, with different degrees of reliability, important markers of the relationships existing between the Celts and the Raeti, although the ways of interaction (cultural influence, people's movements, commercial exchanges, gifts among élites etc.) is not still clear. The revision of published data and the study of unpublished materials allows to define a rich and articulated picture both to chronological level and to territorial one.

Il lascito di Agostino Mitelli ai quadraturisti e ai decoratori del secondo Seicento bolognese attraverso le testimonianze grafiche

Agostino Mitelli (1609-1660) è una figura centrale nella vicenda artistica bolognese. Rinnova profondamente la quadratura, genere in cui opera maggiormente, e diventa il principale riferimento per le generazioni successive. Infatti ha un grande numero di allievi che si fanno interpreti del suo stile e le sue opere continuano ad essere studiate fino a Settecento inoltrato. Nel suo lavoro accorda una grande importanza al mezzo grafico, in cui eccelle e che considera strumento di verifica ed esercizio. Questa predilezione influenza anche i suoi seguaci: dopo la sua morte i suoi disegni diventano molto ricercati e vengono impiegati come repertori di soluzioni di quadratura ed elementi decorativi. Sono essi stessi strumento di studio e infatti ci è pervenuto un grande numero di copie ed esercizi in stile mitelliano. L'analisi sistematica di questo materiale anonimo e poco studiato mi ha permesso di individuare alcune delle personalità di maggiore spicco tra i suoi seguaci, quali Domenico Santi, Giacomo Antonio Mannini e Marc'Antonio Chiarini. Per valutare l'influenza dell'opera di Agostino presso le generazioni successive è centrale anche la produzione calcografica che analizzo a partire dalle quattro serie di elementi di ornato che egli stesso dà alle stampe e che riscuotono molto successo, come provano le numerose ristampe, anche francesi. Dopo la sua morte vengono incise diverse imprese che si riallacciano al suo operato: la prima è quella del figlio Giuseppe Maria Mitelli che pubblica alcuni suoi disegni. Seguono le serie di Santi, Buffagnotti, Mannini, Chiarini e diversi altri che comprendono anche quadratura e veduta e che spesso sono state riassemblate da editori e collezionisti. Anche le fonti affrontano la questione della dipendenza delle successive generazioni dagli stilemi di Agostino Mitelli, oltre a quelle a stampa ho studiato approfonditamente i manoscritti inediti dell'altro figlio di Agostino, Giovanni Mitelli, che forniscono molte nuove notizie.

Arnt van Tricht : Werkkatalog eines Bildhauers am Niederrhein im 16. Jahrhundert

Arnt van Tricht, gest. 1570, unterhielt bis in die späten 50er Jahre des 16. Jahrhunderts, wahrschein-lich aus Antwerpen kommend, in Kalkar am Niederrhein eine sehr erfolgreiche Werkstatt. Die bis dahin vorherrschende spätgotische Formensprache der langjährig ansässigen Bildhauer löste er durch die der Renaissance ab, führte jedoch deren Arbeitsfelder und Materialwahl weiter. Arnt van Tricht schuf Arbeiten sowohl religiöser als auch profaner Natur innerhalb des Gebiets der damals sehr bedeutenden Vereinigten Herzogtümer Kleve-Mark-Jülich-Berg und Geldern. Seine wohlhabenden Auftraggeber entstammten dem Klerus, der Bürgerschaft und dem Adel.rnIm Rahmen der Arbeit zeigte sich, dass sich für den Künstler die Verlegung der herzoglichen Residenz nach Düsseldorf und der wirtschaftliche Niedergang der Region letztlich stärker auswirkte als die religiösen Veränderungen durch die Reformation.rnArnt van Tricht schuf die meisten seiner religiösen Bildwerke für die Stiftskirche St. Viktor in Xanten, die durch die Bürgerschaft ausgestattete Pfarrkirche von St. Nicolai in Kalkar und umliegende Gemeinden. Einzelne Stücke sind, wohl über familiäre Verflechtungen vermittelt, in einem weiteren Radius zu finden. Van Tricht arbeitete Schnitzretabel mitsamt ihrer ornamentalen und figuralen Aus-stattung sowie Skulpturen(-gruppen) in Eichenholz. Daneben finden sich im Werk zahlreiche in Sandstein gearbeitete Skulpturen, die teilweise an Pfeilern und Portalen der Kirchen architektur-gebunden sind. Neben diesen rundplastischen Werken schuf Arnt van Tricht eine große Anzahl an steinernen Reliefarbeiten. Hierbei nehmen die überwiegend für die lokalen Kanoniker gearbeiteten Epitaphien mit biblischem Reliefbild in Ornamentrahmen den größten Teil ein.rnEin zweiter, gleichwertiger Werkkomplex, überwiegend in Sandstein gearbeitet, ist profaner Natur und fällt durch die Größe der Aufträge ins Gewicht. Arnt van Tricht war an einigen groß angelegten Modernisierungsprojekten an Stadthäusern und Kastellen des lokalen Adels beschäftigt. Für mehrere aufwendig gestaltete Fassadendekorationen arbeitete er Architekturglieder mit figürlicher Darstellung oder Ornament, Büsten und freiplastische Skulpturen. Arnt van Tricht war aber auch an der Aus-gestaltung der Innenräume beteiligt. Aufwendig skulptierte und reliefverzierte Kaminverkleidungen stehen dabei neben reduzierteren Arbeiten für offensichtlich weniger repräsentative Räume. Neben in Eichenholz gearbeiteter Vertäfelung schuf Arnt van Tricht hölzerne figurale Handtuchhalter. Diese zeigen, wie auch die Reliefbilder der Kamine, die darüber hinaus Wappen und Porträts der Bauherren aufnehmen, eine religiöse oder profane, auch antikisierende Thematik, bei der ein moralisierender Unterton mitschwingt.rnIn dieser Arbeit werden erstmals alle Werkstücke des Künstlers zusammengeführt dargestellt, so dass ein Werkkatalog mit einem Überblick über das sehr breit gefächerte Spektrum des Opus Arnt van Trichts vorliegt. Häufig durch bloße Nennung mit Arnt van Tricht in Verbindung gebrachte Arbeiten werden bewertet und die Zu- oder Abschreibung begründet. Auch können einige Stücke neu zugeschrieben werden.

Oxidative damage to DNA related to survivorship and carotenoid-based sexual ornamentation in the common yellowthroat

Carotenoid-based sexual ornaments are hypothesized to be reliable signals of male quality, based on an allocation trade-off between the use of carotenoids as pigments and their use in antioxidant defence against reactive oxygen species. Carotenoids appear to be poor antioxidants in vivo, however, and it is not clear whether variation in ornament expression is correlated with measures of oxidative stress (OXS) under natural conditions. We used single-cell gel electrophoresis to assay oxidative damage to erythrocyte DNA in the common yellowthroat (Geothlypis trichas), a sexually dichromatic warbler in which sexual selection favours components of the males’ yellow ‘bib’. We found that the level of DNA damage sustained by males predicted their overwinter survivorship and was reflected in the quality of their plumage. Males with brighter yellow bibs showed lower levels of DNA damage, both during the year the plumage was sampled (such that yellow brightness signalled current OXS) and during the previous year (such that yellow brightness signalled past OXS). We suggest that carotenoid-based ornaments can convey information about OXS to prospective mates and that further work exploring the proximate mechanism(s) linking OXS to coloration is warranted.

Direct male-male competition can facilitate invasion of new colour types in Lake Victoria cichlids

The possibility that disruptive sexual selection alone can cause sympatric speciation is currently a subject of much debate. The initial difficulty for new and rare ornament phenotypes to invade a population, and the stabilisation of the resulting polymorphism in trait and preference make this hypothesis problematic. Recent theoretical work indicates that the invasion is facilitated if males with the new phenotype have an initial advantage in male-male competition. We studied a pair of sympatric incipient species of cichlids from Lake Victoria, in which the red (Pundamilia nyererei) and blue males (P. pundamilia) vigorously defend territories. Other studies suggested that red phenotypes may have repeatedly invaded blue populations in independent episodes of speciation. We hypothesised that red coloration confers an advantage in male-male competition, assisting red phenotypes to invade. To test this hypothesis, we staged contests between red and blue males from a population where the phenotypes are interbreeding morphs or incipient species. We staged contests under both white and green light condition. Green light effectively masks the difference between red and blue coloration. Red males dominated blue males under white light, but their competitive advantage was significantly diminished under green light. Contests were shorter when colour differences were visible. Experience of blue males with red males did not affect the outcome of a contest. The advantage of red over blue in combats may assist the red phenotype to invade blue populations. The apparently stable co-existence of red and blue incipient species in many populations of Lake Victoria cichlids is discussed.