Results 21 to 30 of about 14,518 (188)

Exchange biasing of single-domain Ni nanoparticles spontaneously grown in an antiferromagnetic MnO matrix [PDF]

open access: yes, 2007
Exchange biased composites of ferromagnetic single-domain Ni nanoparticles embedded within large grains of MnO have been prepared by reduction of Ni$_x$Mn$_{1-x}$O$_4$ phases in flowing hydrogen.
Abramoff M D   +7 more
core   +1 more source

Protection of metal artefacts with the formation of metal-oxalates complexes by Beauveria bassiana.

open access: yesFrontiers in Microbiology, 2012
Several fungi present high tolerance to toxic metals and some are able to transform metals into metal-oxalate complexes. In this study, the ability of Beauveria bassiana to produce copper oxalates was evaluated in vitro.
Edith eJoseph   +7 more
doaj   +1 more source

Investigation of nucleation and crystal growth kinetics of nickel manganese oxalates [PDF]

open access: yes, 2005
The nucleation and the crystal growth rates of mixed nickel manganese oxalates have been determined from the changes of the ionic concentration of the solution and the crystal size distribution during the precipitation process within a supersaturation ...
Aoun-Habbache, Montaha   +3 more
core   +4 more sources

Copper Nanoparticles Prepared fromOxalic Precursors [PDF]

open access: yes, 2011
The synthesis of nanoparticles of copper metal via a soft chemistry route is presented in this paper. The method is based on the thermal decomposition under nitrogen or hydrogen of oxalic precursors with a well-controlled morphology and particle size ...
Baco-Carles, Valérie   +2 more
core   +4 more sources

Determination of Oxalate in Urine Using Oxalate Oxidase: Comparison with Oxalate Decarboxylase [PDF]

open access: yesClinical Chemistry and Laboratory Medicine, 1979
The oxalate content of urine is determined by means of oxalate oxidase and simple pH measurement. The enzyme specifically decarboxylates oxalate, producing two moles CO2 per mole oxalate. The CO2 diffuses into an alkaline buffer solution (Hallson, P. C. & Rose, G. A. (1974), Clin. Chim. Acta 55, 29--39) in the closed reaction vessel, and reduces the pH
Kohlbecker, G.   +2 more
openaire   +3 more sources

Influence of nutrition on feline calcium oxalate urolithiasis with emphasis on endogenous oxalate synthesis [PDF]

open access: yes, 2011
The prevalence of calcium oxalate (CaOx) uroliths detected in cats with lower urinary tract disease has shown a sharp increase over the last decades with a concomitant reciprocal decrease in the occurrence of struvite (magnesium ammonium phosphate ...
Baal, J., van   +3 more
core   +2 more sources

Impact of Household Cooking Techniques on African Nightshade and Chinese Cabbage on Phenolic Compounds, Antinutrients, in vitro Antioxidant, and β-Glucosidase Activity

open access: yesFrontiers in Nutrition, 2020
Different household cooking techniques (boiling, steaming, stir frying, and microwave) were tested on the changes of targeted phenolic compounds, antioxidant property (ferric reducing-antioxidant power (FRAP) activity), α-glucosidase activity ...
Millicent G. Managa   +5 more
doaj   +1 more source

Characterization and digital restauration of XIV-XV centuries written parchments by means of non-destructive techniques. Three case studies [PDF]

open access: yes, 2018
Parchment is the primary writing medium of the majority of documents with cultural importance. Unfortunately, this material suffers of several mechanisms of degradation that affect its chemical-physical structure and the readability of text.
Pronti, L.   +5 more
core   +3 more sources

Preparation and electrical properties of dense micro-cermets made of nickel ferrite and metallic copper [PDF]

open access: yes, 2009
Dense micro-cermets made of nickel ferrites and copper micrometric particles were obtained from partial reduction under hydrogenated atmosphere at 350 C of mixed copper nickel ferrites, and sintering in nitrogen at 980 C.
Baco-Carles, Valérie   +4 more
core   +3 more sources

Glycinium oxalate

open access: yesActa Crystallographica Section C Crystal Structure Communications, 2001
In the title compound, C2H6NO2+.C2HO4-, the glycine molecule exists in the cationic form and the oxalic acid molecule in the mono-ionized state. The molecules aggregate into alternate columns of glycinium and semi-oxalate ions. The structure is stabilized by an extensive network of hydrogen bonds.
M, Subha Nandhini   +2 more
openaire   +3 more sources

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