Results 31 to 40 of about 1,298,773 (390)

Modified reagents for determination of urea and ammonia.

open access: yesClinical Chemistry, 1962
Combinations of reagents are described for the catalyzed indophenol reaction for the determination of ammonia, which produces a stable blue color. The procedure is adapted to the determination of urea after hydrolysis with urease.
A. L. Chaney, E. P. Marbach
semanticscholar   +1 more source

On the Excretion of Urea. [PDF]

open access: yesJAMA: The Journal of the American Medical Association, 1897
Tiverton, R. I., Sept. 10, 1897. To the Editor: — On page 438 of theJournal, Aug. 28, 1897, Dr. Charles Stover of Amsterdam, N. Y., is quoted as follows: "He also spoke of a case which came under his own observation, in which but 500 grains of urea were excreted daily when there should have been 1,300, the patient developing eclampsia." I do not ...
openaire   +6 more sources

SOME FEATURES OF SOCIAL COMMUNICATION PROCESS AT PREADOLESCENTS WITH MENTAL DEFICIENCIES [PDF]

open access: yesStudia Universitatis Babeş-Bolyai. Psychologia-Paedagogia, 2010
. During his entire life, a people have a lot of social relationships, based of the social communication process. The social communication is a form of total communication process and has specific manifestations related to ages, gender, social ...
UREA ROXANA
doaj  

Two-Stage Crystallization Combining Direct Succinimide Synthesis for the Recovery of Succinic Acid From Fermentation Broth

open access: yesFrontiers in Bioengineering and Biotechnology, 2020
Succinic acid is an important chemical and raw material widely used in medicine, food, biodegradable materials, fine chemicals, and other industrial fields.
Yiwen Xiao   +7 more
doaj   +1 more source

Urea in Dermatology: A Review of its Emollient, Moisturizing, Keratolytic, Skin Barrier Enhancing and Antimicrobial Properties

open access: yesDermatologic Therapy, 2021
Urea is a hygroscopic molecule (capable of absorbing water) present in the epidermis as a component of the natural moisturizing factor (NMF) and is essential for the adequate hydration and integrity of the stratum corneum.
J. Piquero-Casals   +5 more
semanticscholar   +1 more source

Effects of Combining Feed Grade Urea and a Slow-release Urea Product on Performance, Dietary Energetics and Carcass Characteristics of Feedlot Lambs Fed Finishing Diets with Different Starch to Acid Detergent Fiber Ratios. [PDF]

open access: yes, 2016
Recent findings have shown that microbial nitrogen flow and digestible energy of diets are increased when urea is combined with a slow-release urea (SRU) in diets with a starch to acid detergent fibre ratio (S:F) 4:1.
Barreras, A   +9 more
core   +3 more sources

Te-Doped Pd Nanocrystal for Electrochemical Urea Production by Efficiently Coupling Carbon Dioxide Reduction with Nitrite Reduction.

open access: yesNano letters (Print), 2020
The renewable electricity-driven reduction of carbon dioxide (CO2RR) is a promising technology for carbon utilization. However, it is still a challenge to broaden the application of CO2RR.
Yonggang Feng   +6 more
semanticscholar   +1 more source

A deep intronic variant is a common cause of OTC deficiency in individuals with previously negative genetic testing

open access: yesMolecular Genetics and Metabolism Reports, 2021
Pathogenic variants in non-coding regions of genes encoding enzymes or transporters of the urea cycle can lead to urea cycle disorders (UCDs). However, not all commercially available testing platforms interrogate these regions. Here, we used a gene panel
Runjun D. Kumar   +6 more
doaj  

Relationships between plasma levels of nitrogenous metabolites and some psycho-neuro-endocrine parameters

open access: yesJournal of Education, Health and Sport, 2022
Background. It was recently shown by our group that bilirubin has a neurotropic activity. It is also shown that endogenous uric acid exerts a noticeable modulating effect on neuro-endocrine adaptation factors.
Igor Bombushkar   +4 more
doaj   +1 more source

Potentiometric urea biosensors

open access: yesClinica Chimica Acta, 2022
Excess nitrogen in the body is converted to urea in the liver, and urea is disposed as a waste product in urine. Urea concentration can change in body fluids such as blood due to the presence of certain disorders. Therefore, the determination of urea is of high importance in various areas including medical diagnosis, as well as food quality control and
Oguz Özbek   +3 more
openaire   +4 more sources

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