Results 181 to 190 of about 72,465 (283)

A chromatographic investigation into the reactions of urea and formaldehyde.

A literature survey showed that very few studies into the chromatographic separation of urea formaldehyde resins have been made. Those that have been undertaken are of doubtful or limited value.
Ludlam, Peter Raymond
core  

Loss of Stability for Blood Urea Nitrogen in Cattle Serum Samples Stored for 3 and 6 Months at −20°C and −80°C

Veterinary Clinical Pathology, EarlyView.
ABSTRACT Background Biological samples are stored for delayed or add‐on analyses. However, storage conditions, including time and temperature, can affect the stability of measurands in the samples. Objectives To assess the stability of blood urea nitrogen (BUN) in cattle serum samples.
I. Lizarraga, P. Reid, K. Wieliczko, J. Beeler‐Marfisi, F. Castillo‐Alcala   +4 more
wiley   +1 more source

Advances in Lignin Chemistry, Bonding Performance, and Formaldehyde Emission Reduction in Lignin-Based Urea-Formaldehyde Adhesives: A Review. [PDF]

ChemSusChem
Ait Benhamou A, Abid L, Calvez I, Cloutier A, Nejad M, Stevanovic T, Landry V.   +6 more
europepmc   +1 more source

Preparation and Evaluation of Rice Bran-Modified Urea Formaldehyde as Environmental Friendly Wood Adhesive. [PDF]

Glob Chall, 2021
Islam MN, Faruk MO, Rana MN, Das AK, Habib A.   +4 more
europepmc   +1 more source

Mitochondrial Ca2+ uniporter haploinsufficiency leads to sexually dimorphic redox imbalance and metabolic remodelling in the mouse brain

The Journal of Physiology, EarlyView.
Abstract figure legend The genetic inactivation of one Mcu allele leads to sex‐specific changes in neuronal function in adult mice, that is, the firing of action potentials and the relationship between cytosolic and mitochondrial Ca2+ levels. The ability to produce NAD(P)H by stimulated neural tissue is largely preserved in male mice but delayed in ...
Jenna Gray, Girish Halemirle, Beatriz Ferrán, Hadyn Rose, Traci L. Redwine, Sophia Pham, Bo Hagy, Atul Pranay, Jennifer Giorgione, Stacy A. Hussong, Veronica Galvan, Kenneth Humphries, Holly Van Remmen, Mike Kinter, William E. Sonntag, Pankaj K. Singh, Carlos Manlio Díaz‐García   +16 more
wiley   +1 more source

Mechanical Properties, Thermal Stability, and Formaldehyde Emission Analysis of Nanocellulose-Reinforced Urea-Formaldehyde Resin and Its Mechanism. [PDF]

Polymers (Basel)
Deng X, Liu Z, Wang Z, Wu Z, Li D, Yang S, He S, Ji N.   +7 more
europepmc   +1 more source

Tillage does not impact soil greenhouse gas emissions in a Central Texas rainfed maize–cotton system

Agrosystems, Geosciences &Environment, Volume 9, Issue 3, September 2026.
Abstract Agricultural soils are a significant source of greenhouse gas (GHG) emissions, primarily as N2O. Monitoring how management practices impact soil gas fluxes (CO2, CH4, and N2O) is useful for making sure conservation practices (e.g., no‐till) are sustainable with regards to all potential environmental impacts.
Dorothy Menefee, Hal Collins, Doug Smith
wiley   +1 more source

Synthesis and Characterization of Bio-Composite Based on Urea-Formaldehyde Resin and Hydrochar: Inherent Thermal Stability and Decomposition Kinetics. [PDF]

Polymers (Basel)
Janković B, Dodevski V, Janković M, Milenković M, Samaržija-Jovanović S, Jovanović V, Marinović-Cincović M.   +6 more
europepmc   +1 more source

Encapsulation of Cerium Nitrate within Poly(urea-formaldehyde) Microcapsules for the Development of Self-Healing Epoxy-Based Coating. [PDF]

ACS Omega, 2021
Farzi G, Davoodi A, Ahmadi A, Neisiany RE, Anwer MK, Aboudzadeh MA.   +5 more
europepmc   +1 more source

Biobased Polyurethane Films Based on Andiroba (Carapa guianensis) and Buriti (Mauritia flexuosa) Oil Polyols

Journal of Applied Polymer Science, Volume 143, Issue 30, August 10, 2026.
Polyurethane films were prepared from andiroba (Carapa guianensis) and buriti (Mauritia flexuosa) oil‐derived polyols, emphasizing their potential as bio‐based materials. UV–Vis analysis indicates the retention of carotenoid‐related chromophoric features within the polymer matrix.
João A. P. da Silva, Amanda L. Ferreira, Felipe F. C. Tavares, Chana M. da Silva, Cesar L. Petzhold, Nilo S. M. Cardozo   +5 more
wiley   +1 more source