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Evaluation of bamboo particleboards produced with urea-formaldheyde resin
(2014)
The bamboo waste can be an alternative material to sustain the crescent demand for particleboards, also bringing ecological benefits as reduction of the pressure for raw materials and landfill space demands. In this context, ...
Response of bermudagrass to enhanced-efficiency fertilizers, application strategies and release under tropical conditions
(2020-01-01)
Nitrogen fertilization is an important input for crop yield; however, it can result in detrimental environmental effects due to low use efficiency of regular N sources. This study evaluated the effects of N fertilizers and ...
The urea transporter DUR3 is differentially regulated by abiotic and biotic stresses in coffee plants
(2021-02-01)
The high costs of N fertilizers in the coffee production emphasizes the need to optimize fertilization practices and improve nitrogen use efficiency. Urea is widespread in nature, characterizing itself as a significant ...
Simultaneous use of urea and potassium nitrate for Arthrospira (Spirulina) platensis cultivation
(WILEY-BLACKWELLMALDEN, 2012-05)
Urea has been considered as a promising alternative nitrogen source for the cultivation of Arthrospira platensis if it is possible to avoid ammonia toxicity; however, this procedure can lead to periods of nitrogen shortage. ...
Biochar phosphate fertilizer loaded with urea preserves available nitrogen longer than conventional urea
(Multidisciplinary Digital Publishing Institute (MDPI), 2022)
Urea-induced unfolding of Glossoscolex paulistus hemoglobin, in oxy- and cyanomet-forms: A dissociation model
(2013-01-01)
The urea effect on the giant extracellular hemoglobin of Glossoscolex paulistus (HbGp) stability was studied by analytical ultracentrifugation (AUC) and small angle X-ray scattering (SAXS). AUC data show that the sedimentation ...
Urea-induced unfolding of Glossoscolex paulistus hemoglobin, in oxy- and cyanomet-forms: A dissociation model
(2013-01-01)
The urea effect on the giant extracellular hemoglobin of Glossoscolex paulistus (HbGp) stability was studied by analytical ultracentrifugation (AUC) and small angle X-ray scattering (SAXS). AUC data show that the sedimentation ...
Urea amperometric biosensors based on a multifunctional bipolymeric layer: Comparing enzyme immobilization methods
(ELSEVIER SCIENCE SA, 2009)
This paper outlines the results obtained with biosensors designed for urea amperometric detection. The incorporation of urease into a bipolymeric substrate consisting of poly(pyrrole) and poly(5-amino-1-naphthol) was ...
Interação entre nutrição protéica e aspectos reprodutivos em fêmeas bovinas
(Belo Horizonte, 2008)
Dietas com excesso de proteína bruta, em especial contendo uréia, têm sido associadas a menores taxas de prenhez, alterações hormonais e diminuição na qualidade de embriões de fêmeas bovinas. A condição de exposição desses ...