Results 81 to 90 of about 620,053 (315)
EFFECT OF THE INTERRACTION BETWEEN NITROGEN, PHOSPHORUS AND POTASSIUM ON GROWTH CHARACTERS AND YIELD OF WHEAT UNDER DRY FARMING CONDITIONS [PDF]
Arab Universities Journal of Agricultural Sciences, 2005 Two field experiments were carried out at El-Khroub experimental station, east of Constantine, Algeria, to evaluate the effect of N, P, K fertilization and their interaction on growth characters and yield of wheat grown on calcareous soil.
doaj +1 more source
β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations
Advanced Biology, Volume 9, Issue 3, March 2025.Ammonia, detoxified by the liver into urea and glutamine, impacts autophagy differently at varying levels. Low ammonia activates autophagy via c‐Myc and β‐catenin, while high levels suppress it. Using Huh7 cells and Spf‐ash mice, c‐Myc's role in cytoprotective autophagy is revealed, offering insights into hyperammonemia and potential therapeutic ...
S. Sergio +11 more
wiley +1 more source
Urea-induced unfolding transitions of recRaPrPC and recHuPrPC proteins analyzed at 25°C by Far-UV CD spectroscopy. [PDF]
, 2016 The buffer contained 20 mM NaOAc, pH 5.5. The unfolded fraction calculated from Δε at 222 nm is plotted as a function of the urea concentration. Insert: ΔG (kJ/mol) versus the urea concentration.
Donghai Lin (50551) +6 more
core +1 more source
Solvatochromism in urea/water and urea-derivative/water solutions [PDF]
, 2020 This work reports the experimental measurements of solvent acidity (SA), basicity (SB), and solvent dipolarity and polarizability (SPP) for water solutions with urea (U) and its molecular derivatives, monomethyl-urea (MU), 1,3-dimethyl-urea (DMU) and ...
Díaz-Oliva, Cristina +7 more
core +1 more source
Advanced Engineering Materials, EarlyView.This study applies machine learning regression to predict chromium layer thickness in decorative trivalent chromium electroplating, using 441 experiments from laboratory‐scale (1L) and pilot‐scale (14L) setups. Tree‐based models, particularly CatBoost, outperformed linear regression by capturing nonlinear parameter interactions (R2$R^2$ up to 0.77 ...
Christoph Baumer +4 more
wiley +1 more source
Response of maize to ammonium nitrate, urea and cogranulated urea-urea phosphate [PDF]
South African Journal of Plant and Soil, 1997 Urea fertilizers may lose N by ammonia volatilization when applied in the field. In order to reduce this loss, modified urea compounds are being used. Not all of them reduce ammonia loss and improve crop yields. A field study was conducted to evaluate the comparative advantage of cogranulated urea-urea phosphate (340 g N kg−1, 73 g P kg−1) over urea ...
openaire +1 more source
Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys
Advanced Engineering Materials, EarlyView.An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi +5 more
wiley +1 more source
Toward Better Understanding of Molecular Fluorophore Covalent Binding to Carbon Dots
Small StructuresThe mechanism of the molecular photoluminescence of carbon dots (CDs) has gained much attention recently, due to several reports of formation of small fluorophore species at reaction conditions applied in CD synthesis.
Wiktor Kasprzyk +10 more
doaj +1 more source
Effect of Urea on Drug Extraction Efficiency in Reverse Iontophoresis
PharmaceuticsBackground/Objectives: Reverse iontophoresis (R-IP) is a technology that transdermally delivers components from inside the body to outside the body using electroosmotic flow (EOF) generated by applying a low electric current through the skin.
Rie Yamauchi, Shuji Ohno, Yasuko Obata
doaj +1 more source