120,069 research outputs found
Além da enxada, a utopia: a colonização italiana no oeste catarinense
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Filosofia e Ciências Humanas. Programa de Pós-Graduação em História.Através da teoria e metodologia da História Oral, busca perceber a experiência migratória dos italianos e seus descendentes que migraram da Região Colonial Italiana, no Rio Grande do Sul, para o Oeste de Santa Catarina, a partir das primeiras décadas do séc. XX. Apresenta vários aspectos do cotidiano dos migrantes na nova terra, como o trabalho, o lazer e a família. Analisa quais as representações do passado são transmitidas pelas pessoas que vivenciaram a referida experiência migratória
Presentazione dell'opera del giureconsulto Alberto De Simoni
No full textVersione breve della presentazione delle ristampa del libro di De Simoni
Construyendo la ópera nacional: A Marília de Itamaracá de L. V. De-Simoni
No full textLuiz Vicente De Simoni (1782-1881) was an Italian physician who went to Rio de Janeiro in 1817, and was constantly involved in the musical and theatrical scene of the city. He is the author of Marília de Itamaracá (1854, music by Adolpho Maersch), considered by some authors as the first “Brazilian” opera. The subject is historical and narrates some episodes of the 17th century war against the Dutch. One of his main concerns was the use of Brazilian and Portuguese themes in operas, in order to invent something “national”. As part of a broader movement, the idea was to explore Brazilian people, landscape and traditions as the main subject for operas that should be sung in Portuguese. The movement was related to a broader political project sponsored by the government and the Emperor, aimed at the revision of Brazilian history and the construction of a new cultural identity for the country. The purpose of this paper is to examine some aspects of the libretto of Marília de Itamaracá and the ideas discussed in its preface, showing the contradictions and tensions involved in the creation of a “national” identity through operas
Reconstruction of prehistory on the basis of genetic data
No full textIn their letter, Torroni et al. (2000) express a radical
disagreement with the assumptions, methods, and conclusions
of Simoni et al.’s (2000) article. We think that
their many criticisms can be reduced to four points:
1. Haplogroups have been incorrectly defined, and
therefore the spatial autocorrelation analysis (SAAP) of
their frequencies is flawed;
2. Aside from these errors, the frequencies of haplogroup
J and of superhaplogroup JT do not match previous
reports;
3. Only 22 polymorphic sites have been considered,
and therefore the results of AIDA are flawed;
4. Meaningful patterns of mtDNA diversity can only
be identified by the analysis of the distributions of recent
mutations
Cyrba simoni Wijesinghe 1993
No full textCyrba simoni Wijesinghe, 1993 Cyrba simoni: Wijesinghe 1993: 136; Wanless 1984 b: 461–463, figs 10 A–L (sub C. bimaculata); Wesołowska & Russell-Smith 2000: 20–21, figs 20–24. Material examined: BURUNDI: 1 ♀ (MRAC, 213879), Cabara, miombo woodland with Brachystegia, by hand, ca 850 m, 23.iv. 2002, N. Benoit; 1 ♂ (MRAC, 213828), Nkayamba, miombo woodland with Brachystegia, by hand, ca 850 m, 23.v. 2002, N. Benoit. Distribution: This is a widespread Afrotropical species, known from Nigeria and Cameroon to Tanzania and Angola in the south (Wanless 1984 b; Wesołowska & Russell-Smith 2000).Published as part of Azarkina, Galina N. & Logunov, Dmitri V., 2010, New data on the jumping spiders of the subfamily Spartaeinae (Araneae: Salticidae) from Africa, pp. 163-182 in African Invertebrates 51 (1) on page 170, DOI: 10.5733/afin.051.010
Methodology for measuring testosterone, dihydrotestosterone and sex hormonebinding globulin in a clinical setting
No full textTestosterone is a hormone difficult to measure accurately. Yet, its accurate determination is the prerequisite for the correct diagnosis and clinical management of hypogonadism in males and hyperandrogenism in females. In the last decade a number of studies increased awareness of the poor performance of most of the current assays and identified some strategies to improve the accuracy of testosterone testing (Rosner et al. 2007; 2010). In the previous edition of this book a chapter was dedicated to the description of the principles, analytical performance and limitations of the existing methodologies for measuring testosterone, DHT and SHBG (Simoni 2004). Here, we will provide an update on the state of the art to help the reader choose the testosterone detection system most suitable for his/her needs in view of the current recommendations. Testosterone and DHT circulate in serum largely bound to transport proteins: that is albumin, which displays low affinity but very high binding capacity, and SHBG, with high affinity and low capacity. A systematic analysis of serum transport of steroid hormones and their interaction with binding proteins revealed an association constant of SHBG of 1.6 × 109 M-1 for testosterone and of 5.5 × 109 M-1 for DHT at 37 C (Dunn et al. 1981). By comparison the association constant of albumin for testosterone is five orders of magnitude lower (6 × 104 M-1) (Anderson 1974). The relative amounts of protein binding of circulating testosterone in men and women are shown in Table 4.1
Histo-cytological responses of Dicentrarchus labrax (L.) following mercury exposure
No full textThis work deals with the damaging effects of mercury (Hg concentrations 251, 355, 501 μg l−1) on the structure and ultrastructure of gills, liver, intestine and kidney of farmed European sea bass (Dicentrarchus labrax L., 1758) acutely treated for 24 and 48 h. The histoarchitecture of the gills of exposed fish was highly modified due to severe oedema, telangiectasia and secondary lamellar fusion. In hepatocytes and enterocytes hydropic cell swelling, alterations to the endoplasmic reticulum and mitochondria were noted, in addition to an abundance of myelinoid bodies which were frequently encountered following treatment. In the intestine and renal tubules of exposed European sea bass, rodlet cells (RCs) displayed ultrastructural modifications.Statistical analyses were conducted on the number and the size of selected cell types and structures. Following exposure to mercury for 24 and 48 h, the number of chloride cells, RCs and macrophage aggregates were found to have increased significantly in the gills, the intestine and the head kidney.[...
Effects of experimental terbuthylazine exposure on the cells of Dicentrarchus labrax (L.)
No full textThe effects of acute exposure to the herbicide terbuthylazine (3.55, 5.01 and 7.08 mg l−1) on the cells of farmed European sea bass, Dicentrarchus labrax L., were investigated by means of light and electron microscopy. In gills of treated fish, the number of chloride cells (CCs) and rodlet cells (RCs) increased significantly within 24 h and 48 h, respectively; the intestine showed the largest increase in RCs linked to treatment and exposure time. In kidney, 24 h exposure induced a significant increase in RCs and the number and global area of macrophage aggregates (MAs).Treated fish displayed cellular and/or ultrastructural alterations in all the organs examined. In the gills necrosis, lamellar and cellular oedema, epithelial lifting, telangectasia, and fusion of secondary lamellae were encountered. The liver presented myelin-like figures, cytoplasmic rarefaction and acute cell swelling of hepatocytes. In both organs, the severity of damage was dose–dependent.In RCs of gills, the intestine and kidney of exposed sea bass, high cytoplasmic vacuolization, myelin-like figures, cristolysis and varying degrees of rodlet degeneration were observed. Extensive rodlet expulsion occurred in the gut lumen. Exposure to terbuthylazine also affected the renal tubular epithelial cells, which exhibited ‘blebs’. Damage to the intestinal epithelial cells was also observed.[...
Cellular alterations in different organs of European sea bass Dicentrarchus labrax (L.) exposed to cadmium
No full textSpecimens of farmed European sea bass (Dicentrarchus labrax L., 1758) were exposed to different cadmium (Cd) concentrations (4.47, 5.63, 7.08 and 8.91 mg l(-1)) for 24 and 48 h. The effects of Cd on numbers of some cell types and structures (i.e., chloride cells, CCs; macrophage aggregates, MAs; rodlet cells, RCs) and on structure and ultrastructure of the main organs (gill, liver, intestine, kidney) were studied with routine process for light and transmission electron microscopy. Following cadmium exposure, the numbers of branchial CCs as well as intestinal and renal RCs increased significantly within 24h. Increase in metal concentration did not affect the magnitude of the numerical increment of the aforementioned cells. Moreover, in treated fish (24 and 48 h) the numbers of MAs in both head kidney and spleen were significantly higher than in control conspecifics, whilst the global area of MAs was less influenced by the acute treatment. In exposed sea bass, all the examined organs exhibited cellular modifications which appeared time- and dose-dependent. The gills showed telangectasia, lamellar fusion, oedema, epithelial lifting and leukocyte infiltration. In the liver, kidney and intestine acute cell swelling and vacuolization were common. Ultrastructurally the alterations observed frequently in hepatocytes, tubular epithelial cells and enterocytes included presence of numerous myelinoid bodies, damaged mitochondria, dilatation of endoplasmic reticulum, high number of lysosomes and autophagolysosomes. In intestinal and kidney tubular epithelia of treated fish, rodlet cells displayed some anomalies like dilatation of nuclear envelope, cytoplasmic vacuolization, presence of myelinoid bodies, rodlets degeneration and extensive discharge activity.[...
Newportia simoni Brolemann 1898
No full textNewportia simoni Brölemann, 1898 Material examined. ICN-M.Ch-0060, 1 specimen, Antioquia, Cocorná, Aguadas, Estudiantes Biología UN, 20- III- 1987, 1050 m; IAVH, 1 specimen, Nariño, Barbacoas, RNA El Pangan, A. Miranda & O. Reyes, 25-27-VII- 2006, 640 m, 01º21'45''N 78º04'45'' W, Winkler; IAVH, 1 specimen, Risaralda, Pereira, Vda. El Manzano, E. Jiménez & L. E. Franco, 14-16-VII- 2002, 1880 m, 4°41'35,69"N 75°38'58,45"W, Winkler, Fca. Santa Isabel; IAVH, 1 specimen, Quindío, Filandia, Vda. Cruces, L. E. Franco, 28-30-VIII- 2002, 1920 m, 4°42'16,84"N 75°36'35,35"W, Fca. La cha; MPUJ _ ENT 0001122 (MPUJ-CHI-0119), 1 specimen, Chocó, Acandi, Capurgana, M. Guevara & C. Jaramillo, 03/11/ 2008, 800m, 8°37'55.01"N- 77°21'19.46"O. Distribution. Newportia simoni is known from Costa Rica, Venezuela and Colombia. In Colombia it was reported from Corozal in the Caribbean (Schileyko & Stagl 2004), and now also from the Pacific and Andean regions. Altitudinal range. 640 to 1920 m.Published as part of Chagas-Jr, Amazonas, Chaparro, Elisa, Jiménez, Sebastián Galvis, Triana, Hernán Darío Triana, Flórez, Eduardo & Seoane, José Carlos Sícoli, 2014, The centipedes (Arthropoda, Myriapoda, Chilopoda) from Colombia: Part I. Scutigeromorpha and Scolopendromorpha, pp. 133-156 in Zootaxa 3779 (2) on page 148, DOI: 10.11646/zootaxa.3779.2.2, http://zenodo.org/record/491024
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