Results 201 to 210 of about 327,817 (261)

Repurposing methyltransferase-cofactor interactions for engineered microbial production of isotopically labelled SAM and SAH. [PDF]

Microb Cell Fact
Bulgakova UV, Rudenko AY, Karpenko IL, Vasil'ev VG, Sergiev PV, Dontsova OA, Polshakov VI, Mariasina SS.   +7 more
europepmc   +1 more source

New geochronological constraints on Late Pleistocene glaciation in the southern Cadí Massif, SE Pyrenees

Journal of Quaternary Science, EarlyView.
ABSTRACT The Cadí Massif (42°17′09″ N, 1°38′11″ E; 2649 m a.s.l.) in the southeastern Pyrenees preserves clear evidence of Late Pleistocene glaciation, although previous research has focused almost exclusively on its northern slope. By contrast, the southern slope has remained largely unexplored.
M. Oliva, J. Ventura, A. Çiner, M. A. Sarıkaya, J. Bonsoms, K. M. Wilcken   +5 more
wiley   +1 more source

Structural complexity and groundwater circulation in mountain karst systems: an integrated approach combining hydrodynamic data and environmental tracers. [PDF]

Sci Rep
Raibi F, Maaziz M, Hssaisoune M, El-Azhari A, Miftah M, Bouchaou L, Tagma T, Brahim YA.   +7 more
europepmc   +1 more source

Ngarrawa (mound spring) sediments as archives of Holocene environmental change in arid central Australia: Insights from Itrax XRF scanning

Journal of Quaternary Science, EarlyView.
ABSTRACT Central Australia's ngarrawa, or ‘mound springs’, are unique hydrological systems that serve as some of the only near‐permanent sources of water and continuous sediment deposition in Australia's arid interior. As such, they hold significant potential as palaeo‐climate and ‐environmental archives in a region where many aspects of past climate ...
Fletcher C. Nixon, Jonathan J. Tyler, Patricia S. Gadd, Quan Hua   +3 more
wiley   +1 more source

Per- and Polyfluoroalkyl Substances (PFAS) in Food Products by Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS), AOAC Official Method 2025.07, First Action. [PDF]

J AOAC Int
Matsubara T, Mizuno Y, Imoto E, Maeshima N, Kobayashi M, Kunihiro O, Lipps W.   +6 more
europepmc   +1 more source

Mercury cycling during the last glacial period in Arctic Lake El'gygytgyn, NE Russia

Journal of Quaternary Science, EarlyView.
ABSTRACT Tectonic processes play a key role in the global mercury (Hg) cycle on geological timescales, by mobilising Hg from deep Earth reservoirs to the surface. These natural fluxes also introduce a dynamic component to the terrestrial Hg cycle that can interact with other environmental signals and influence Hg delivery to sedimentary records.
Alice R. Paine, Joost Frieling, Bernd Wagner, Martin Melles, Volker Wennrich, Tamsin A. Mather, Stuart A. Robinson, David M. Pyle   +7 more
wiley   +1 more source

Protocol for the quantification of melatonin and AFMK in cerebrospinal fluid by LC-MS/MS. [PDF]

STAR Protoc
Artime-Naveda F, Hevia-Sánchez D, González-Gago A, Rodríguez-González P, Zawadzka A, Sainz RM, Mayo JC.   +6 more
europepmc   +1 more source

Mycotoxin management in the cereal supply chain: Advanced detection, detoxification, and smart packaging strategies

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Mycotoxins remain a persistent threat to the safety and quality of cereal grains and other agricultural products, and their impact on human health continues to raise global concerns. In many situations, the practices traditionally used to control these toxins are no longer sufficiently effective. They can be costly, difficult to implement on a
Abolfazl Asqardokht‐Aliabadi, Dipendra Kumar Mahato, Jafar Mohammadzadeh Milani   +2 more
wiley   +1 more source

Matrix-Tolerant Quantification of THC and THCA in Complex Cannabis Products Using In-Sample Calibration with Multiple Isotopologue Reaction Monitoring. [PDF]

J Am Soc Mass Spectrom
Li Y, Zhang M.
europepmc   +1 more source

Paraben Exposure in the General Taiwanese Population: Reference Values, Personal Care Products, and Cumulative Risk Assessment

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Parabens (parahydroxybenzoates), which are frequently used as preservatives in pharmaceuticals, foodstuffs, and personal care products, have recently attracted considerable attention due to their adverse health effects and endocrine‐disrupting properties.
Jung‐Wei Chang, Yen‐Hsuan Huang, Hsin‐Chang Chen, Vinoth Kumar Ponnusamy, Wan‐Ting Chang, Po‐Chin Huang   +5 more
wiley   +1 more source