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do Nascimento E.A.,State University of the Central West
Check List | Year: 2013

Lycids are often very aposematic toxic beetles, and are considered models in mimicry systems. They are cosmopolitan, with the highest diversity around tropical regions, however the knowledge of the South American lycids is yet relatively poor. Here I present an overview of the Brazilian lycids including a complete list of species and updated occurrence data. © 2013 Check List and Authors. Source

Appoloni C.R.,State University Londrina | Melquiades F.L.,State University of the Central West
Applied Radiation and Isotopes | Year: 2014

Several modern techniques have been applied to prevent counterfeiting of money bills. The objective of this study was to demonstrate the potential of Portable X-ray Fluorescence (PXRF) technique and the multivariate analysis method of Principal Component Analysis (PCA) for classification of bills in order to use it in forensic science. Bills of Dollar, Euro and Real (Brazilian currency) were measured directly at different colored regions, without any previous preparation. Spectra interpretation allowed the identification of Ca, Ti, Fe, Cu, Sr, Y, Zr and Pb. PCA analysis separated the bills in three groups and subgroups among Brazilian currency. In conclusion, the samples were classified according to its origin identifying the elements responsible for differentiation and basic pigment composition. PXRF allied to multivariate discriminate methods is a promising technique for rapid and no destructive identification of false bills in forensic science. © 2013 Elsevier Ltd. Source

Thomaz E.L.,State University of the Central West
Agriculture, Ecosystems and Environment | Year: 2013

Shifting cultivation is an age-old agricultural system that coexists with modern agricultural systems, particularly in the tropics. The characteristics and effects of shifting cultivation are well documented in the literature, including: soil degradation and erosion, nutrient depletion, impacts on biodiversity, and economic trends. Although studies report soil loss during the cropping period under shifting cultivation, few studies have assessed soil erosion during a full slash-and-burn cycle. The objectives of this study were to characterize runoff and soil loss for a full 5-year regeneration cycle in a slash-and-burn system. The measurement of runoff and soil loss was based on three replicate 2-m2 plots installed in each monitored area. Three agricultural plots in different stages of regeneration were monitored. The data were analyzed by month and year for the 5-year regeneration cycle. Runoff and soil loss decreased exponentially from the burned phase to the early stage of secondary forest. Runoff and soil loss exhibited patterns similar to those of a forested area after only 4-5 years of regeneration. In general, areas undergoing slash and burn in the Guarapuava region are stable and the fallow length, as well. © 2013 Elsevier B.V. Source

Quantitative study that aims to characterize patients on hemodialysis according to socio-demographic and identify the main causes of hospitalization in 2007. Data collection was performed in a clinic Guarapuava, Paraná, Brazil, with 29 patients,through medical records and the computerized program Nefrodata, specific to dialysis centers. The medical records were analyzed with the use of descriptive statistics, where 58.7% were male, 62% married and the average age was 53.7 years. As to the underlying diseases, there was a predominance of diabetic nephropathy with 31.1% and 11.8% with hypertensive crisis among the causes of hospitalization. These causes are mostly related to renal disease itself and necessary guidelines and multidisciplinary team interventions focused on treatment of chronic renal insufficiency and adherence to therapy, aiming to reduce and even prevent these hospitalizations. Source

Da-Silva P.R.,State University of the Central West
Genetics and molecular research : GMR | Year: 2012

Leaf rust is one of the most destructive diseases affecting wheat worldwide. The most effective way to control it is to use resistant cultivars. Resistance based on slow-rusting adult plant resistance (APR) genes has proven to be the best method for developing cultivars with durable resistance. A source of slow-rusting APR for leaf rust is the Brazilian wheat cultivar Toropi. The Toropi/IAC 13 F2 and F7 recombinant inbred lines (RILs) were developed in previous studies. Phenotypic analysis of the F2 and F7 RILs showed that 2 recessive genes that were temporarily named trp-1 and trp-2 conferred APR in Toropi. In the present study, we used monosomic families and amplified fragment length polymorphism (AFLP), sequence-tagged site, and simple sequence repeat (SSR) markers to map trp-1 and trp-2 on wheat chromosomes. Analysis of the F2 monosomic RIL showed that trp- 1 and trp-2 were located on chromosomes 1A and 4D, respectively. AFLP analysis of the F7 RIL identified 2 independent AFLP markers, XPacgMcac3 and XPacgMcac6, which were associated with Toropi APR. These markers explained 71.5% of the variation in the phenotypic data in a multiple linear regression model. The AFLP markers XPacg/ Mcac3 and XPacg/Mcac6 were anchored by SSR markers previously mapped on the short arms of chromosomes 1A (1AS) and 4D (4DS), respectively. The trp-2 gene is the first leaf rust resistance gene mapped on wheat chromosome 4DS. The mapping of trp-1 and trp-2 provides novel and valuable information that could be used in future studies involving the fine mapping of these genes, as well as in the identification of molecular markers that are closely related to these genes for marker-assisted selection of this important trait in wheat. Source

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