Results 61 to 70 of about 689,520 (364)

Perdas de nitrogênio por volatilização de amônia e resposta do arroz irrigado à aplicação de ureia tratada com o inibidor de urease NBPT Nitrogen losses by ammonia volatilization and lowland rice response to NBPT urease inhibitor-treated urea

open access: yesCiência Rural, 2010
A ureia é a principal fonte de nitrogênio (N) para o arroz irrigado, porém é bastante suscetível a perdas por volatilização de amônia. O uso do inibidor de urease N-(n-butil) triamida tiofosfórica (NBPT) pode minimizar esse problema, inibindo ...
Walkyria Bueno Scivittaro   +3 more
doaj   +1 more source

Rheumatologic Manifestations of Patients With Type B Insulin Resistance

open access: yesArthritis Care &Research, EarlyView.
Objective The objectives of this study were to identify laboratory and clinical features associated with type B insulin resistance (TBIR), a rare condition caused by autoantibodies that inhibit the insulin receptor, most frequently occurring in the setting of systemic lupus erythematosus (SLE), and to increase awareness of this rare, life‐threatening ...
S. Amara Ogbonnaya   +4 more
wiley   +1 more source

Urea-Functionalized Silver Catalyst toward Efficient and Robust CO2 Electrolysis with Relieved Reliance on Alkali Cations

open access: yes, 2022
We report a new strategy to improve the reactivity and durability of a membrane electrode assembly (MEA)-type electrolyzer for CO2 electrolysis to CO by modifying the silver catalyst layer with urea.
Tanveer Hussain (413615)   +7 more
core   +1 more source

La literatura de tradición oral en la provincia de Jaén / Oral Literature in the Province of Jaén

open access: yesBoletín de Literatura Oral, 2017
Este artículo ofrece una aproximación crítica a las principales labores de documentación y estudios sobre la literatura oral de la provincia de Jaén (España) desde los primeros trabajos de campo hasta la actualidad.
Marta Urea Herrador
doaj  

Differential effects of ruminally protected amino acids on fattening of fallow deer in two culling periods

open access: yesAnimal, 2020
A well-balanced amino acid profile in the feedstuffs for livestock is essential to support adequate growth. This is well studied for monogastric species but still not well understood for ruminants and especially for the most unconventional species, like ...
F. Ceacero, M.A. Clar, V. Ny, R. Kotrba
doaj   +1 more source

Response of maize to ammonium nitrate, urea and cogranulated urea-urea phosphate [PDF]

open access: yesSouth 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

The condensation of chloral with urea and phenyl urea [PDF]

open access: yesProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1931
Abstract The condensation of chloral with urea was first observed by Jacobsen, who found that monochloral urea CCI3 . CH(OH) . NH . CO . NH2 (I), and dichloral urea CCI3 . CH(OH). NH . CO . NH . CH(OH). CCI3 (II), were respectively produced when excess of urea, or of chloral, was employed.
Frederick Daniel Chattaway   +1 more
openaire   +1 more source

Developing and Evaluating a Laboratory‐Based Frailty Index for the Prediction of Long‐Term Health Outcomes in Systemic Lupus Erythematosus

open access: yesArthritis Care &Research, EarlyView.
Objective We aimed to construct and evaluate the first laboratory‐based frailty index (FI‐Lab) for predicting adverse outcomes in systemic lupus erythematosus (SLE) and to compare its predictive ability to that of an existing clinical FI. Methods We used data from a single‐center prospective cohort of adult patients with SLE whose baseline visit ...
Grace Burns   +2 more
wiley   +1 more source

β‐Catenin/c‐Myc Axis Modulates Autophagy Response to Different Ammonia Concentrations

open access: yesAdvanced 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

Role of ureolytic activity in Bacillus cereus nitrogen metabolism and acid survival

open access: yes, 2008
The presence and activities of urease genes were investigated in 49 clinical, food, and environmental Bacillus cereus isolates. Ten strains were shown to have urease genes, with eight of these strains showing growth on urea as the sole nitrogen source ...
Abee, T., Mols, J.M.
core   +1 more source

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