Cláudio José Müller

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Proton extrusion by roots of intact sunflower plants (Helianthus annuus L.) was studied in nutrient solutions or in agar media with a pH indicator. Proton extrusion was enhanced by either iron deficiency, addition of fusicoccin, or single salt solutions of ammonium or potassium salts. The three types of proton extrusion differ in both localization along the(More)
Long-term field observations showed that N2O fluxes observed shortly after N application were not significantly affected by elevated CO2 in the Giessen Free Air Carbon dioxide Enrichment (FACE) study. To further investigate this unexpected result a 15N tracer study was carried out under controlled conditions where in parallel treatments either the NH+4 pool(More)
Hortic. bras., v. 22, n. 4, out.-dez. 2004 The high heterozygosity of Dendrobium nobile hybrids has attracted the attention of biotechnology companies for large scale clonal propagation of elite genotypes belonging to this genus (Faria & Illg, 1995). The orchid species used in this experiment, Dendrobium nobile, is an epiphyte of Asian origin, found(More)
OBJECTIVES Carbohydrate feeding stimulates, and fasting decreases the sympathetic nervous system activity and brown adipose tissue (BAT) thermogenesis. This study was performed to assess the hypothesis that these effects were secondary to changes in insulin concentrations in the central nervous system. METHODS BAT sympathetic activity was assessed by(More)
We have developed a rapid and cost-effective enzyme immunoassay for dehydroepiandrosterone sulfate (DHEA-S) in plasma, performed with samples on a microtitre plate within 2.5 h. No extraction or centrifugation steps are involved. The 3-hemisuccinate of dehydroepiandrosterone is labeled with horseradish peroxidase, then mixed with hydrogen peroxide substrate(More)
Assessment model for organizational business process maturity with a focus on BPM governance practices Fernanda Gobbi de Boer Cláudio José Müller Carla Schwengber ten Caten Article information: To cite this document: Fernanda Gobbi de Boer Cláudio José Müller Carla Schwengber ten Caten , (2015),"Assessment model for organizational business process maturity(More)
For noninvasive imaging and characterization of the skin, high resolution imaging techniques have to be applied. While high frequency ultrasound (HFUS) achieves a resolution in the range of 10 μm, magnetic resonance imaging (MRI) on a 1.5 Tesla, special equipped clinical whole body imager obtains a resolution of several 10x10 μm in plane and several 100 μm(More)
The means for judging optimal tension during tendon transfers are approximate and not very quantifiable. The purpose of this study was to demonstrate the feasibility of quantitatively assessing muscular mechanical properties intraoperatively using ultrasound elastography (shear wave elastography [SWE]) during extensor indicis proprius (EIP) transfer. We(More)