Results 31 to 40 of about 123,392 (306)

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

Reversibilidade de fósforo não-lábil em solos submetidos à redução microbiana e química: II - extrações sucessivas do fósforo pela resina de troca aniônica Reversibility of non-labile phosphorus in soils under microbial and chemical reduction: II - successive anion exchange resin extraction of phosphorus

open access: yesRevista Brasileira de Ciência do Solo, 2008
A formação de P não-lábil a partir de formas lábeis, adsorvidas aos oxihidróxidos de Fe e Al, é razão para o baixo efeito residual da fertilização fosfatada em solos tropicais.
Iván Ernesto Fernández R.   +3 more
doaj   +1 more source

A comparison of leaf crystal macropatterns in the two sister genera Piper and Peperomia (Piperaceae) [PDF]

open access: yes, 2012
Premise of the study: This is the first large-scale study comparing leaf crystal macropatterns of the species-rich sister genera Piper and Peperomia. It focuses on identifying types of calcium oxalate crystals and their macropatterns in leaves of both ...
Horner, Harry T   +2 more
core   +1 more source

Oxalate Nephropathy and the Mechanism of Oxalate-Induced Kidney Injury

open access: yesKidney Diseases, 2023
Background: Hyperoxaluria is a major cause of oxalate nephropathy, which can lead to impaired renal function presenting as acute kidney injury, acute on chronic kidney disease, or chronic kidney disease.
Daorina Bao, Yu Wang, Ming-hui Zhao
doaj   +1 more source

The oxalato complexes of titanium(IV)—I : Mononuclear Ti(OH)2(C2O4)22− in solution [PDF]

open access: yes, 1977
Molecular weight, electrodialysis and anion exchange measurements between pH 1 and 4 showed that the titanyl oxalate anion is present in solution as mononuclear Ti(OH)2(C2O4)22 units. pH studies of solutions of (NH4)2TiO(C2O4)2·H2O in 0.5 M NaClO4 medium
Velde, G.M.H. van de
core   +2 more sources

Effect of Compost Extract Addition to Different Types of Fertilizers on Quality at Harvest and Shelf Life of Spinach

open access: yesAgronomy, 2021
Spinach is rich in minerals, vitamins, phytochemicals and bioactive compounds with health-beneficial effects; however, this plant also tends to accumulate oxalates and nitrates in their leaves.
Almudena Giménez   +8 more
doaj   +1 more source

Germin and germin-like proteins: evolution, structure, and function [PDF]

open access: yes, 2008
Germin and germin-like proteins (GLPs) are encoded by a family of genes found in all plants. They are part of the cupin superfamily of biochemically diverse proteins, a superfamily that has a conserved tertiary structure, though with limited similarity ...
Dunwell, Jim   +3 more
core   +1 more source

Insights Into the Carboxyltransferase Reaction of Pyruvate Carboxylase From the Structures of Bound Product and Intermediate Analogs [PDF]

open access: yes, 2013
Pyruvate carboxylase (PC) is a biotin-dependent enzyme that catalyzes the MgATP- and bicarbonate-dependent carboxylation of pyruvate to oxaloacetate, an important anaplerotic reaction in central metabolism.
Lietzan, Adam D., Maurice, Martin St.
core   +2 more sources

Assessment of Mineral Nutrient Efficiency in Genetically Diverse Spinach Accessions by Biochemical and Functional Marker Strategies

open access: yesFrontiers in Plant Science, 2022
Leafy vegetable crops are considered as a natural source of mineral nutrients that could decrease the risk factor of many growth issues in children and adults. Spinach is globally considered as the most desirable leafy crop, due to its taste and nutrient
Madiha Rashid   +11 more
doaj   +1 more source

Obesity and kidney stone disease. A systematic review [PDF]

open access: yes, 2018
INTRODUCTION: Currently, abdominal obesity has reached an epidemic stage and obesity represents an important challenge for worldwide health authorities. Epidemiologic studies have demonstrated that the stone risk incidence increases with Body Mass Index,
AL SALHI, Yazan   +8 more
core   +1 more source

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