Results 151 to 160 of about 43,763 (313)

Moderate Fire Temperatures Affect the Structure of Clayey Oxisol Aggregates

Land Degradation &Development, EarlyView.
ABSTRACT Wildfires have become increasingly frequent and intense worldwide, raising concerns about their impacts on soil systems. However, the thermal responses of clay‐rich Oxisols, dominated by Fe and Al oxides, remain poorly understood. In this study, samples from the 0 to 5 cm layer of six Oxisols were subjected to controlled heating at ...
Yasmmin Tadeu Costa, Paulo Angelo Fachin, Bruno Teixeira Ribeiro, Edivaldo Lopes Thomaz, Alberto Vasconcellos Inda Junior, Nilton Curi   +5 more
wiley   +1 more source

Surface Chemical Analysis of Plastic Materials by X‐Ray Photoelectron Spectroscopy: Understanding Weathering, Fragmentation and Contaminant Uptake in Marine Environments

Macromolecular Materials and Engineering, EarlyView.
This Perspective demonstrates how X‐ray photoelectron spectroscopy (XPS) uncovers surface chemical changes in plastics, providing insight into weathering‐driven fragmentation and contaminant adsorption. The Perspective underscores XPS's pivotal role in elucidating fragmentation mechanisms, predicting pollutant–plastic interactions, and guiding ...
Tiziano Di Giulio, Cosimino Malitesta, Elisabetta Mazzotta   +2 more
wiley   +1 more source

COQ4 is required for the oxidative decarboxylation of the C1 carbon of Coenzyme Q in eukaryotic cells

, 2023
Pelosi L, Morbiato L, Burgardt A, Tonello F, Bartlett AK, Guerra RM, Ferizhendi KK, Desbats MA, Rascalou B, Marchi M, Vázquez-Fonseca L, Agosto C, Zanotti G, Roger-Margueritat M, Alcázar-Fabra M, García-Corzo L, Sánchez-Cuesta A, Navas P, Brea-Calvo G, Trevisson E, Wendisch VF, Pagliarini DJ, Salviati L, Pierrel F.   +23 more
europepmc   +1 more source

The mechanism of tyrosinase-catalysed oxidative decarboxylation of α-(3,4-dihydroxyphenyl)-lactic acid

, 1991
Manickam Sugumaran, H. M. DALI, Victor Semensi   +2 more
openalex   +2 more sources

The mechanism of the oxidative deamination and decarboxylation of serine and threonine by periodate in acid medium [PDF]

, 1985
Rosa Pascual, M.A. Herraez
openalex   +1 more source

Analytical Approaches to Address Challenges in the Analysis of Cannabinoids in Vascular Matrices Using Mass Spectrometry

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Phytocannabinoids are bioactive metabolites derived from the Cannabis sativa plant. They have garnered attention due to their recreational uses and therapeutic potential. Although various analytical strategies have been employed for their analysis, mass spectrometry (MS) coupled to chromatographic separation is superior due to its sensitivity ...
Radwa Mahmoud, Robert B. Laprairie, Anas El‐Aneed   +2 more
wiley   +1 more source

Biochemical and structural explorations of α-hydroxyacid oxidases reveal a four-electron oxidative decarboxylation reaction. [PDF]

Acta Crystallogr D Struct Biol, 2019
Yeh HW, Lin KH, Lyu SY, Li YS, Huang CM, Wang YL, Shih HW, Hsu NS, Wu CJ, Li TL.   +9 more
europepmc   +1 more source

Mechanistic studies on tyrosinase-catalysed oxidative decarboxylation of 3,4-dihydroxymandelic acid [PDF]

, 1992
Manickam Sugumaran, H. M. DALI, Victor Semensi   +2 more
openalex   +1 more source

NMR‐Based Structural Analysis of Highly Substituted Pyridines From Kondrat'eva Aza‐Diels–Alder Cycloadditions

Magnetic Resonance in Chemistry, EarlyView.
We report the results from a kinetic and mechanistic investigation of an inverse‐electron‐demand Diels–Alder (IEDDA) cycloaddition involving an oxazole‐type diene synthesized via an Ugi–Zhu multicomponent reaction (UZ‐3CR). ABSTRACT Pyridines are a crucial class of heterocycles with widespread applications in natural products, pharmaceuticals, and ...
Galdina V. Suárez‐Moreno, Francisco Méndez, Atilano Gutierrez‐Carrillo, Mónica A. Rincón‐Guevara, Yoarhy A. Amador‐Sánchez, Alejandro Islas‐Jácome, Eduardo González‐Zamora   +6 more
wiley   +1 more source

Kinetic and mechanistic studies of reactive intermediates in photochemical and transition metal-assisted oxidation, decarboxylation and alkyl transfer reactions

, 2014
Jack M. Carraher
openalex   +2 more sources