Variação das características hidrosedimentares e geomorfologia do leito do Rio Ivaí - PR, em seu curso inferior

In the present study were observed changes in morphology of the bed of the lower course of the river Ivaí, made by bathymetric surveys, granulometric analysis and measures the flow velocity. Changes made considerable changes in relation to flow and bad load. The study was conducted in the last 110 km of the river Ivaí, between the municipalities Tapira and Icaraíma - PR. In this section the channel flows with meandering pattern, embedded in sandstone Caiuá and sediment modern of its flood plain. This is the only major river in the state that so far has no modifications, making it an important site for studies of fluvial geomorphology.

Perfil longitudinal e a aplicação do índice de gradiente (RDE) no rio dos Patos, bacia hidrográfica do rio Ivaí, PR

This paper presents the results of the longitudinal profile analysis and the application of gradient index (RDE) in the Patos River, a tributary of the Ivaí River basin, PR. The goal is identify and quantify the anomalous zones along river course concerning their genesis - activity neotectonic or/and lithological imposition. The Patos River has a length of 127 km and a relief amplitude of 660 m, The occurrence of an important knickpoint in the middle course the Patos River can be divided into two stretches. Of the 22 sections measured, 10 were considered anomalous, distributed in both upper and lower course. In the upper course, over a basaltic bedrock of the Serra Geral Formation the RDE values are lower than those in the lower course, where river flows over sedimentary rocks of the Terezina Formation. The 2 nd order anomalies are related to lithological changes, relief alignments and channel confluences - as in the case of São João River. The 1st order anomalies are linked to differences in rock resistance associated with structural control, which provides the formation of waterfalls.

Variabilidade temporal no transporte de sedimentos no rio Ivaí - Paraná (1977-2007)

This paper evaluates the behavior of suspended sediment load of the river Ivaí over a period of 32 years measured by the station further downstream the river (Novo Porto Taquara). The most suitable parameters for this assessment were the annual discharge of suspended sediment and water obtained from SUDERSA. The relationship between the concentration of suspended sediment and discharge of water had not a very good correlation (R 2 = 0,56) and hysteresis effect is quite clear. The justification for this behavior is given by the heterogeneity of the hydrological regime and basin occupation. There were no significant changes in annual flows which have remained the same during the study period. Already the discharge of suspended sediment showed a small gradual decline in which the end of the period (2007), the river carries less than 0.65 Mton at the beginning (1977). This reduction in suspended sediment transported is probably due to changes in soil management for agriculture.

Identificação de paleocanais na região da confluência entre os rios Ivaí e Paraná com o uso de dados de sensoriamento remoto e reconhecimento de fácies sedimentares

The confluence of Ivaí River together with the Paraná one is located near Icaraíma city on the Northwest of Paraná State. In this region, several paleochannels showed quaternary dynamic of Ivaí and Paraná Rivers floodplain. The aim of study was to apply multispectral indices and a data transformation of Landsat 5 TM data, associated with fieldwork and sedimentary facies to identify paleochannels. The results of the Normalized Difference Vegetation, Normalized Difference Water e Modificated Normalized Difference Water indices did not show satisfactory gains. However, the Tasseled Cap Wetness has provided an important gain of information on recognizing paleochannels facies. Through the remote sensing results sediment cores were realized and the sedimentary facies showed its correspondence with remote sensing interpretation.

Variabilidade pluviométrica e a dinâmica atmosférica na bacia hidrográfica do rio Ivaí-PR

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Análise sazonal e espacial da precipitação pluvial na bacia hidrográfica do rio Ivaí, Paraná

Climate variability and therefore the rainfall is often cited today, in times to speak of "global change", "global warming", "anthropogenic disasters," among other terms related to climate issues, which may cause floods and disasters that affect entire regions. In this sense, the seasonal rainfall and its extremes in the basin of Ivaí river, which has a drainage area of approximately 36 000 km2, covering a length of 680 km, located in the State of Paraná between coordinates 22 º 54'S 25 ° 44'S and 55 44'W to 52 º 42'W, were analyzed. Influence of rainfall for the man occupation is undeniably important, not less important is the role that this issue poses to the climate abiotic and biotic environment, because the dynamic relations between the fauna and flora is directly related to the availability of water in system (in this case, rain). The methodological procedures used during the research focused on statistical analysis of rainfall series daily, monthly and yearly, provided by the Superintendence of Water Resources Development and Environmental Protection Agency - SUDERHSA, an agency linked to the government of Parana. The analysis period chosen was from 1975 to 2005, with 38 stations for data collection, distributed evenly across the search area. The standard rainfall in the basin is explained mainly by convective processes in the summer (wet season) and front system causing more homogeneous rainfall over the basin (dry season). What is well marked is the occurrence of maximum rainfall in the years 1983 and 1997 (El Niño) and minimal in the years 1977, 1985 and 1988 (La Niña). Finally, although the study area have undergone a significant change in your landscape for over thirty years, this study indicates no significant interference in rainfall.

Ambientes de confluência no contexto da rede de drenagem: exemplo da bacia hidrográfica do rio Ivaí - estado do Paraná

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Sazonalidade na produção de raízes e teor de β-ecdisona em acessos de fáfia

As raízes de espécies de Pfaffia são utilizadas há muito na medicina popular no Brasil, especialmente como tônicas, afrodisíacas e antidiabéticas. Nas margens e ilhas do Rio Paraná, vegeta naturalmente a espécie Pfaffia glomerata (Spreng.) Pedersen, que corre risco de extinção pela coleta intensiva de suas raízes. Para preservá-la, é preciso desenvolver sistemas que permitam seu uso sustentável. Nesse contexto, foi avaliada a sazonalidade da produção de biomassa e o teor de β-ecdisona em raízes de diferentes acessos de P. glomerata. A coleta dos acessos foi realizada ao longo dos rios Paraná (A1 e A3), Ivaí (A2) e Paranapanema (A4). Mudas produzidas a partir desses acessos foram plantadas experimentalmente em área de ocorrência natural da espécie. O delineamento utilizado foi blocos casualizados, com parcelas subdivididas (acessos nas parcelas; épocas de colheita nas subparcelas), quatro repetições e subparcelas com seis plantas na área útil. Foram realizadas quatro colheitas: oito, dez, doze e quatorze meses após o plantio. As maiores produtividades em massa seca (MS) de raízes foram alcançadas na terceira colheita, com 38,41 g planta-1. Já o acesso A4 foi significativamente mais produtivo que os demais, tanto para massa fresca (94,67 g planta-1), quanto para MS de raízes (26,39 g planta-1). A relação MF/MS das raízes, com média de 26,9% (3,7:1), foi pouco influenciada pela origem dos acessos, embora tenha se alterado significativamente ao longo das colheitas (de 4,1:1, na primeira colheita, a 3,3:1, na terceira colheita, que correspondeu ao valor máximo). O teor de β-ecdisona foi estatisticamente similar nas três primeiras colheitas, variando de 0,26 a 0,38%, com redução drástica na última colheita (0,16%). Os acessos A2 e A3 foram aqueles com teor de β-ecdisona mais altos, respectivamente 0,36 e 0,30%. Considerando os resultados obtidos, sugere-se que a terceira colheita, que corresponde a doze meses após o transplante, como a mais adequada para colheita das raízes.

A GEP-ISFG collaborative study on the optimization of an X-STR decaplex: data on 15 Iberian and Latin American populations

In a collaborative work carried out by the Spanish and Portuguese ISFG Working Group (GEP-ISFG), a polymerase chain reaction multiplex was optimized in order to type ten X-chromosome short tandem repeats (STRs) in a single reaction, including: DXS8378, DXS9902, DXS7132, DXS9898, DXS6809, DXS6789, DXS7133, GATA172D05, GATA31E08, and DXS7423. Using this X-decaplex, each 17 of the participating laboratories typed a population sample of approximately 200 unrelated individuals (100 males and 100 females). In this work, we report the allele frequencies for the ten X-STRs in 15 samples from Argentina (Buenos Aires, CA(3)rdoba, Rio Negro, Entre Rios, and Misiones), Brazil (SA o pound Paulo, Rio de Janeiro, Parana, and Mato Grosso do Sul), Colombia (Antioquia), Costa Rica, Portugal (Northern and Central regions), and Spain (Galicia and Cantabria). Gene diversities were calculated for the ten markers in each population and all values were above 56%. The average diversity per locus varied between 66%, for DXS7133, and 82%, for DXS6809. For this set of STRs, a high discrimination power was obtained in all populations, both in males (a parts per thousand yen1 in 5 A- 10(5)) and females (a parts per thousand yen1 in 3 A- 10(9)), as well as high mean exclusion chance in father/daughter duos (a parts per thousand yen99.953%) and in father/mother/daughter trios (a parts per thousand yen99.999%). Genetic distance analysis showed no significant differences between northern and central Portugal or between the two Spanish samples from Galicia and Cantabria. Inside Brazil, significant differences were found between Rio de Janeiro and the other three populations, as well as between SA o pound Paulo and Parana. For the five Argentinean samples, significant distances were only observed when comparing Misiones with Entre Rios and with Rio Negro, the only two samples that do not differ significantly from Costa Rica. Antioquia differed from all other samples, except the one from Rio Negro.

Descrição cariotípica de possíveis novas espécies do complexo Hypostomus ancistroides e outros Hypostominae

Cytogenetic analyses were performed in four species of the Hypostominae subfamily, three from Hypostomus (Hypostomini) genus and Rhinelepis aspera (Rhinelepini). Three populations of Hypostomus ancistroides were analyzed, which had 2n=68 chromosomes, but presented different karyotype formulas. Hypostomus regani and H. strigaticeps, both from Ivaí river, showed 2n=72 chromosomes with two distinct cytotypes. In turn, R. aspera of the upper Paraná river basin presented 2n=54 chromosome. Multiple Nucleolar Organizer Regions (NORs) have been evidenced by silver nitrate staining in species of Hypostomus and single NOR in R. aspera. The observed variation in the chromosome number and the marked variability in karyotype formulas and NORs reveal a certain amount of karyotype variation in the genus Hypostomus suggesting the probable existence of cryptic species with independent chromosome traits. Therefore, our data can be of great value in discriminating species and understanding their chromosomal evolution.

Diversidade de morcegos em dois fragmentos florestais da região noroeste do Estado do Paraná, Brasil

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Anticorpos monoclonais em imunohematologia

Pós-graduação em Pesquisa e Desenvolvimento (Biotecnologia Médica) - FMB

As chuvas no Paraná: Variabilidade, teleconexões, e impactos de eventos extremos

Pós-graduação em Geografia - FCT

Constituintes micromoleculares de Aristolochia melastoma Manso: compostos nitrados

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Resposta imune à infecção por Mycobacterium bovis em linhagens de camundongos geneticamente selecionados (Seleção IV-A)

Pós-graduação em Medicina Veterinária - FMVZ