999 resultados para CoBRA - computerised bibliographic record actions
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v.12(1936)
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n.s. no.42(1988)
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The bufonid toad Chaunus achavali, a recently described species known only from Uruguay, is recorded for Brazil. This species is morphologically similar to C. ictericus and C. arenarum, and several individuals were labeled in Brazilian scientific collections under these taxa. A lectotype of C. arenarum is designated. Additional field notes on C. achavali and a key for the identification of the species in the Chaunus marinus group are presented.
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The only breeding record of Spartonoica maluroides (d'Orbigny & Lafresnaye, 1837) for Brazil is based on the observation of a fledgling in southern Rio Grande do Sul in January 1976. On 7 December 2005 we discovered a nest containing three nestlings at the southeastern end of Lagoa Pequena, municipality of Pelotas, Rio Grande do Sul. The nest was concealed at the base of a cavity in a Spartina densiflora (Poaceae) tussock located at the edge of a saltmarsh. The nest was built of fine pieces of dead Scirpus olneyi (Cyperaceae) and S. densiflora leaves firmly interlaced to the internal leaves of the tussock. Live leaves of S. densiflora lining the cavity comprised a substantial part of the nest's architecture, forming most of its upper lateral walls and roof. The lower section was more elaborate, resembling a deep cup and forming a distinct incubation chamber. Adults reached the nest's interior through an irregular apical opening amidst the leaves. The nest was 244 mm high and 140 mm wide. The incubation chamber had an external diameter of 138.5 mm, an internal diameter of 79.4 mm and was 86 mm deep. It was lined with fine leaves and white plant fibers. Nestlings were five to six days old. A total of 107 neossoptiles restricted to the capital, spinal and alar tracts were recorded in one nestling. The distribution of neossoptiles in the ocular region of S. maluroides forms a distinct pattern which can be typical of Furnariidae and related families. Two adults attended the nest, bringing small insects to the nestlings and removing fecal sacs. We recorded at least 74 visits to the nest during a ca. 6 h period during an afternoon. The average number of visits per hour was 12.8 ± 1.3. An adult bird spent on average 0.7 ± 0.56 minutes inside the nest attending nestlings. The nest remained unattended on average for 3.61 ± 3.13 minutes. The hour of the day had no influence on the amount of time spent by an adult in the nest or away from it. We returned to the area on 15 December 2005 and found the nest abandoned. Observations confirm that S. maluroides is a resident breeder in southern Brazil and that the saltmarshes of the Lagoa do Patos estuary are an important year-round habitat for the species. A nestling and the nest were collected to document the record.
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Litargus tetraspilotus LeConte, 1856 was collected feeding on Oidium sp. (Fungi, Ascomycota, Erysiphaceae) associated with fruit trees. This is the first time L. tetraspilotus is recorded in Brazil, totaling three species of Mycetophagidae for this country. This study aims to provide a complementary description of this species based on new characters and to present information on its life cycle under laboratory conditions and fluctuation in population in the field. During the period of inventories between July 2004 and August 2006, about every fifteen days, a total of 565 specimens of L. tetraspilotus were collected, with the highest abundance found on citrus plants, with values differing significantly between the two years. The population levels differed between the seasons; spring had the greatest abundance and autumn the least. There was a significant positive correlation of L. tetraspilotus abundance with rainfall and relative humidity. Mycetophagidae, as well as other mycophagous families of Brazilian coleopterans, are barely studied, warranting further future studies of their bioecology and systematics.
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Em um caso fatal de ophidismo, em individuo de 15 annos de edade, picado por uma cobra jararaca (Bothrops jararaca) na face externa da perna direita e que veio a fallecer 26 dias apoz o accidente, os A.A, descrevem as lesões anatomo-pathologicas encontradas e as modificações do metabolismo, evidenciadas pelos exames chimicos do sangue. As principaes alterações existentes, acham-se localisadas nos rins os quaes apresentam lesões de glomerulonephrite diffusa e o aspecto typico da necrose cortical symmetrica. Como alterações de maior significação observam-se ainda lesões vasculares de grande intensidade e constituidas essencialmente por processo de endoarterite productiva. A necrose symmetrica da cortex renal, a vista das intensas alterações vasculares (endoarterite productiva) que acarretaram a obliteração das arterías, é considerada como a consequencia immediata de taes lesões vasculares. Os vasos renaes, séde do processo inflammatorio, são as arterias interlobar, arciforme e interlobular, mas principalmente as arteriolares da camada cortical. O processo de endoarterite assume sempre o carater progressivo, de modo que a luz vascular vae sendo aos poucos, totalmente obstruida. Ao contrario do que se tem observado nos casos de necrose cortical symmetrica, citados na literatura, em que as alterações parenchymatosas são consequentes a thrombose dos vasos reanes, no caso presente esse aspecto não foi verificado mas tão sómente a existencia da endoarterite productiva obliterante. Consideram os A.A. as lesões renaes no caso que estudaram, como a resultante da actuação lenta e prolongada do veneno de cobra sobre as estructuras renaes, baseados nos seguintes factos já conhecidos e admittidos: eliminação do veneno de cobra pelos rins; capacidade do mesmo veneno, determinar a glomerulo-nephrite diffusa e acção do veneno de cobra sobre o endothelio vascular, facilitada essencialmente pela funcção especifica do orgão. As modificações do metabolismo se traduziram por alterações urinarias e sanguineas. As urinas foram emitidas em muito pequena quantidade (50 cc. em 24 horas) não havendo comtudo, anuria absoluta. Cylindros hyalinos e granulosos, bem como leucocytos e cellulas renaes, associadas á albuminoria, era presentes. Os exames chimicos do sangue, revelaram: Proteinas totaes 7,61 grs. em 1000 cc.; Albumina 2,39 grs em 1000 cc.; Globulina 5,22 grs. em 1000 cc.; Uréa 6,42 grs. em 1000 cc.; Fibrinogeneo 0,324 grs. em 1000 cc.; Indican +++; Cl. plasmatico 339 mgrs. em 100 cc.; Cl. globular 170 mgrs. em 100 cc.; Cholesterol 163 mgrs. em 100 cc.; Creatinia 260 mgrs. em 100 cc.; Ph. inorganico 13,4 mgrs. em 100 cc.; Calcio 10,3 mgrs em 100 cc.; Potassio 28 mgrs. em 100 cc.; Sodio 328 mgrs. em 100 cc.. O exame hematologico revelou 11% de hemoglobina; 960.000 hematias por mm.³; e 5.200 leucocytos por mm.³. A formula leucocytaria revelou augmento dos neutrophilos, com 74% dos segmentados. A proporção entre sôro o coagulo foi 9 x 3 cc. A reacção de Wassermann no sôro sanguineo foi negativa. A insufficiencia renal se traduziu no caso em estudo, por modificações humoraes, particularmente pela azotemia elevada, pelo augmento da creatinina, do phosphoro inorganico e do indican. Em contraste com a existencia de taes modificações, o doente não apresentou os signaes clinicos observados nos casos emque a azotemia se mantem elevada, reproduzindo tal facto, o quadro clinico descripto para a necrose symmetrica da cortex renal.
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Os A. A. descrevem Pseudoxenus inclusus sp. n., baseados em uma fêmea e centenas de triungulinideos, encontrados parasitando Ammophila sp., proveniente de Corrego do Itá, Espírito Santo, Brasil. O encontro de um outro exemplar de Myrmecolax incautus Oliveira & Kogan, 1959, permitiu aos AA. complementar a descrição desta espécie, cujo holótipo está muito danificado.
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The engineers of the modern University City are constructing a graceful bridge, named PONTE OSWALDO CRUZ, that crosses a portion of the Guanabara Bay (Fig. 1). The work at west pillar stopped for 3 years (The concret structure in Est. 1). As it will be seen from n.º 1 5 of the fig. 1, Est. I, the base of the structure will have five underground boxes of reinforcement, but, to-day they are just like as five uncovered water ponds, until at present: May 1963. (Est. I fig. 3, n.º 3 pond n.º 3; A. old level of the water; B. actual level of the water; c. green water; E. mass of bloom of blue algae Microcystis aeruginosa). Soon after SW portion, as 5 cells in series, of the pillar abutments, and also the NE portion nearly opposite in the Tibau Mount will be filled up with earth, a new way will link Rio City and the University City. We see to day Est. I, fig. 1 the grasses on the half arenous beach of the Tibau Point. These natural Cyperaceae and Gramineae will be desappear because of so a new road, now under construction, when completed will be 33 feet above the mean sea level, as high as the pillar, covering exactly as that place. Although rainfall was the chief source of water for these ponds, the first water (before meterorological precipitations of whatever first rain it might fall) was a common tap water mixed with Portland Cement, which exuded gradually through the pores of the concret during its hardenning process. Some data of its first cement water composition are on the chemical table, and in Tab. n.º 4 and "Resultado n.º 1". The rain receiving surface of each pond were about 15 by 16 feet, that is, 240 square feet; when they were full of water, their depth was of 2 feet 3", having each pond about 4,000 gallons. Climatic conditions are obviously similar of those of the Rio de Janeiro City: records of temperature, of precipitation and evaporation are seen on the graphics, figs. 2, 3, 4. Our conceptions of 4 phases is merely to satisfy an easy explanation thus the first phase that of exudation of concrete. We consider the 2nd. phase formation of bacterian and cyanophycean thin pellicel. 3rd. phase - dilution by rains, and fertilisation by birds; the 4th phase - plankton flora and fauna established. The biological material arrived with the air, the rains, and also with contaminations by dusts; with big portion of sand, of earth, and leaves of trees resulted of the SW wind actions in the storming days (See - Est. I, fig. 3, G. - the mangrove trees of the Pinheiro Island). Many birds set down and rest upon the pillar structure, its faeces which are good fertilizers fall into the ponds. Some birds were commonly pigeons, black ravens, swallows, sparrows and other sea mews, moor hens, and a few sea birds of comparatively rare occurence. We get only some examples of tropical dust contaminated helioplankton, of which incipient observations were been done sparcely. See the systematic list of the species of plankters. Phytoplankters - Cyanophyta algae as a basic part for food of zooplankters, represented chiefly by rotiferse, water-fleas Moinodaphnia and other Crustacea: Ostracoda Copepoda and Insecta: Chironomidae and Culicidae larvae. The polysaprobic of septic irruptions have not been done only by heating in summer, and, a good reason of that, for example: when the fifth pond was in polysaprobic phase as the same time an alike septic phase do not happened into the 3rd. pond, therefore, both were in the same conditions of temperature, but with unlike contaminations. Among the most important aquatic organisms used as indicatiors of pollution - and microorganisms of real importance in the field of sanitary science, by authorities of renown, for instance: PALMER, PRESCOTT, INGRAM, LIEBMANN, we choose following microalgae: a) The cosmopolite algae Scenedesmus quadricuada, a common indicator in mesosaprobio waters, which lives between pH 7,0 and it is assimilative of NO[3 subscripted] and NH[4 subscripted]. b) Species of the genus Chlamydomonas; it is even possible that all the species of theses genus inhabit strong-mesosaprobic to polysaprobic waters when in massive blooms. c) Several species of Euglenaceae in fast growing number, at the same time of the protozoa Amoebidae, Vorticellidae and simultaneous with deposition of the decaying cells of the blue algae Anacystis cyanea (= Microcystis) when the consumed oxygen by organic matter resulted in 40 mg. L. But, we found, among various Euglenacea the cosmopolite species (Euglena viridis, a well known polysaprobic indicatior of which presence occur in septic zone. d) Analcystis cyanea (= M. aeruginosa) as we observed was in blooms increasing to the order of billions of cells per litter, its maximum in the summer. Temperatures 73ºF to 82ºF but even 90ºF, the pH higher than 8. When these blue algae was joined to the rotifer Brachionus calyflorus the waters gets a milky appearance, but greenished one. In fact, that cosmopolite algae is used as a mesosaprobic indicator. Into the water of the ponds its predominance finished when the septic polysaprobic conditions began. e) Ankistrodesmus falcatus was present in the 5th pond from 26the. April untill the 26th July, and when N.NH[4 subscripted] gets 1.28 mg. L. and when chlorinity stayed from 0.034 to 0.061 mg. L. It never was found at N.NH[4 subscripted] higher than 1 mg. L. The green algae A. falcatus, an indicatior of pollution, lives in moderate mesosaprobic waters. f) As everyone knows, the rotifer eggs may be widely dispersed by wind. The rotifer Asplanchna brightwelli in our observation seemed like a green colored bag, overcharged by green cells and detritus, specially into its spacious stomach, which ends blindly (the intestine, cloaca, being absent). The stock of Asplanchna in the ponds, during the construction of the bridge "PONTE OSWALDO CRUZ" inhabits alkaline waters, pH 8,0 a 8,3, and when we observed we noted its dissolved oxygen from 3.5 to 4 mg. L. In these ponds Asplanchna lived in 0,2 P.PO[4 subscripted]. (Remember the hydobiological observations foreign to braslian waters refer only from 0.06 to 0,010 mg. L. P.PO[4 subscripted]; and they refer resistance to 0.8 N.NH[4 subscripted]). By our data, that rotiger resist commonly to 1.2 until 1.8 mg. L.N.NH[4 subscripted]; here in our ponds and, when NO[2 subscripted] appears Asplanchna desappears. It may be that Asplanchna were devoured by nitrite resistant animals of by Culicidae or other mosquitoes devoured by Due to these facts the number and the distribution of Asplanchna varies considerabley; see - plates of plankton successions. g) Brachionus one of the commonest members of class Rotatoria was frquently found in abundance into the ponds, and we notice an important biological change produce by the rotifer Brachonus colyciflorus: the occurence of its Brachionus clayciflorus forms pallas, is rare in Brazil, as we know about this. h) When we found the water flea MOinodaphnia we do not record simultanous presence of the blue algae Agmenellun (= Merismopedia).
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In the present note Phyllodistomum spatula Odhner, 1902 is recorded for the first time from Brazil and in a New host Colossoma macropomum (Cuvier, 1818) (Pisces, serrasalmidae), and Plyllodistomum spatulaeforme Odhner, 1902 is considered its synonym.
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Two samples of Sparganum, the larval form of Lueheella Baer, 1924 (= Spirometra Mueller, 1937) were recovered from Philander opossum (L. 1758) captured in Salobra, Mato Grosso State, Brazil, by Dr. Lauro Travassos in may, 1942. This is the first report of the presence of this larval form in P. opossum. Dealing with helminths recovered from Brazilian Marsupialia, deposited in Oswaldo Cruz Institute Helminthological Collection, we examined in two samples of the preserved material collected in Salobra. Mato Grosso State, nine larval forms (Sparganum) of Lueheella sp. One of the samples, with six specimens, tissue. It is the first report of philander opossum harbouring this larval stage. The studied preserved wet material was stained and whole mounts were deposited in the Oswaldo Cruz institute Helminthological collection ns. 31.470 and 31.471. Measurements are in mm.
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"Vegeu el resum a l'incici del document del fitxer adjunt."
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This paper provides a modelling framework for evaluating the exchange rate dynamics of a target zone regime with undisclosed bands. We generalize the literature to allow for asymmetric one-sided regimes. Market participants' beliefs concerning an undisclosed band change as they learn more about central bank intervention policy. We apply the model to Hong Kong's one-sided currency board mechanism. In autumn 2003, the Hong Kong dollar appreciated from close to 7.80 per US dollar to 7.70, as investors feared that the currency board would be abandoned. In the wake of this appreciation, the monetary authorities finally revamped the regime as a symmetric two-sided system with a narrow exchange rate band.
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The sequence of pitches which form a musical melody can be transposed or inverted. Since the 1970s, music theorists have modeled musical transposition and inversion in terms of an action of the dihedral group of order 24. More recently music theorists have found an intriguing second way that the dihedral group of order 24 acts on the set of major and minor triads. We illustrate both geometrically and algebraically how these two actions are dual. Both actions and their duality have been used to analyze works of music as diverse as Hindemith and the Beatles.
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Nomimoscolex touzeti n. sp. is described from one Ceratophrys cornuta (L.) caught in Amazonian Ecuador. Its taxonomic relationships to the others species are discussed. This new species is characterized by a cortical position of vitellaria; by the presence in the uteroduct of conglomerates of 20-40 eggs; by a weak ovary width/proglottis width ratio; by ventral excretory canals anastomosed; by a powerful vaginal sphincter and by a long cirrus. N. touzeti is the first record of Monticellidae in an amphibian host.