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Prikaz rezultata 61-70 od 238
Generation of Hydroxyl Radical in Isolated Pea Root Cell Wall, and the Role of Cell Wall-Bound Peroxidase, Mn-SOD and Phenolics in Their Production
(Oxford Univ Press, Oxford, 2009)
The hydroxyl radical produced in the apoplast has been demonstrated to facilitate cell wall loosening during cell elongation. Cell wall-bound peroxidases (PODs) have been implicated in hydroxyl radical formation. For this ...
Electrical and transport properties of nickel manganite obtained by Hall effect measurements
(Springer, Dordrecht, 2009)
Intrinsic resistivity and carrier transport parameters of sintered nickel manganite samples (NTC thermistor grade) were determined using a Hall effect measurement system based on the van der Pauw method. Powder mixtures ...
Leaf vitamin C contents modulate plant defense transcripts and regulate genes that control development through hormone signaling
(Amer Soc Plant Biologists, Rockville, 2003)
Vitamin C deficiency in the Arabidopsis mutant vtc1 causes slow growth and late flowering. This is not attributable to changes in photosynthesis or increased oxidative stress. We have used the vtc1 mutant to provide a ...
Far infrared reflectance of sintered nickel manganite samples for negative temperature coefficient thermistors
(Pergamon-Elsevier Science Ltd, Oxford, 2007)
Single phase complex spinel (Mn, Ni, Co, Fe)(3)O-4 samples were sintered at 1050, 1200 and 1300 degrees C for 30 min and at 1200 degrees C for 120 min. Morphological changes of the obtained samples with the siDtering ...
Statistical damage mechanics and extreme value theory
(Sage Publications Ltd, London, 2007)
The statistical damage model presented by the authors in the previous article of this series is used to formulate analytical constitutive relations for the hardening and softening phases of two-dimensional lattices. An ...
Senescence-related changes in the antioxidant status of ginkgo and birch leaves during autumn yellowing
(Wiley, Hoboken, 2004)
The antioxidant status of birch and ginkgo leaves during autumnal senescence was characterized by the activities of catalase (CAT), peroxidase (POD), ascorbate peroxidase (APX) and superoxide dismutase (SOD). The contents ...
Senescence-related changes in catalase, peroxidase and ascorbic acid level in ginkgo and birch leaves during autumn yellowing
(Taylor & Francis Ltd, Abingdon, 2003)
Kinetics of the hydrogen evolution reaction on Fe-Mo film deposited on mild steel support in alkaline solution
(Pergamon-Elsevier Science Ltd, Oxford, 2005)
The mechanism and kinetics of the hydrogen evolution reaction were studied. in 1.0 mol dm(-3) NaOH solution on Fe-Mo alloy electrodes prepared by electrodeposition at constant current densities from a pyrophosphate bath. ...
Electrocatalytic activity of nano-sized Ebonex/Pt for underpotential deposition of hydrogen
(Trans Tech Publications Ltd, 2006)
The underpotential deposition of hydrogen was studied in 0.5 mol dm(-3) HClO4 solution on an electrode based on Ebonex-supported platinum electrocatalyst spread on rotation Au disk electrode (Ebonex/Pt). Pt catalyst was ...
Correlation between densification rate and microstructure evolution of mechanically activated BaTiO3
(Taylor & Francis Ltd, Abingdon, 2005)
Increasing demands on the quality of electronic ceramics requires a well-controlled correlation between particle morphology and processing conditions. Since mechanical activation is one of the methods for modification of ...