Results 91 to 100 of about 1,983 (261)

High spatial resolution (10-50 μm) analysis of Sr isotopes in rock-forming apatite by LA-MC-ICP-MS.

J Anal At Spectrom, 2023
Buzenchi A, Moreira H, Bruguier O, Bosch D, Dhuime B.   +4 more
europepmc   +1 more source

Binuclear Copper‐Dependent Oxidative Enzymes Involved in Fungal Natural Product Modifications

Journal of the Chinese Chemical Society, EarlyView.
This article summarizes recent biochemical characterizations of a new enzyme family named by the authors as binuclear copper‐dependent oxidative enzymes (BiNCOs). Found in fungal natural product biosynthesis, BiNCOs catalyze diverse CH functionalization reactions, including C(sp3)H halogenation, C(sp3)H hydroxylation, C(sp3)O macrocyclization, and ...
Chen‐Yu Chiang, Masao Ohashi, Yi Tang
wiley   +1 more source

LA-MC-ICP-MS dating of zircon from chromitite of the Archean Bangur Gabbro Complex, Orissa, India – Ambiguities and constraints

Geologica Acta, 2015
The Mesoarchean chromitites in the Singhbhum craton provide the main source of chromium in India. We report here results of dating zircon grains that were found in the chromitite of ultramafic rocks belonging to the southern part of the Archean Baula ...
P. V. SUNDER-RAJU, E. HANSKI, Y. LAHAYE
doaj  

Progress and Application of Mass Spectrometry Techniques for Single Particle Analysis in Nuclear Safeguard

Zhipu Xuebao
The nuclear Non-proliferation Treaty (NPT) is one of the cornerstones regulating the international order. To make sure that all the member states fulfill their obligation under the treaty, the International Atomic Energy Agency (IAEA) has constructed a ...
Li-ping WANG, Wei-hua XIE, Peng-hui XIONG, Si-wei SHI, Ling ZHANG, Zhen QIN   +5 more
doaj   +1 more source

The Top 1.2 m as a δ56Fe‐Sensitive Zone: Synergistic Regulation of Fe Cycling by Soil Texture and Land Use Intensity in Tropical Soils

Land Degradation &Development, EarlyView.
ABSTRACT Soil Fe cycling is co‐regulated by texture and land use intensity (LUI), but their synergistic mechanism and depth‐dependent effects remain unclear. We analyzed 68 samples (0–200 cm) from one cultivated (CL, high LUI, silty loam, clay = 11%–18%) and three non‐cultivated (AC1–AC3, low LUI, sandy loam, clay = 2.65%–9.00%) profiles in Thailand's ...
Qian Zhang, Guilin Han, Di Wang, Chao Song   +3 more
wiley   +1 more source

Constraining Geogenic Sources of Boron Impacting Groundwater and Wells in the Newark Basin, USA

Hydrology
The Newark Basin comprises Late Triassic and Early Jurassic fluvio-lacustrine rocks (Stockton, Lockatong, Passaic, Feltville, Towaco, and Boonton Formations) and Early Jurassic diabase intrusions and basalt lava flows.
Larbi Rddad, Steven Spayd
doaj   +1 more source

Serum elemental profile‐based machine learning models for Alzheimer's disease identification and cognitive score prediction

Neuroprotection, EarlyView.
Serum elemental profiling combined with machine learning supports exploratory Alzheimer's disease (AD) identification and cognitive score prediction. In this retrospective cross‐sectional study, 874 participants from the BANC‐PUMC, including cognitively normal controls and patients with AD, were analyzed.
Haotian Liu, Xinnan Liu, Yashuang Chen, Meng Pan, Ying Fu, Chao Ma, Wei Ge   +6 more
wiley   +1 more source

LA-MC-ICP-MS Sr Isotope Analysis of Speleothems – Choosing the Right Reference Material [PDF]

Goldschmidt Abstracts, 2020
Michael Weber, Denis Scholz, Regina Mertz-Kraus, Klaus Peter Jochum   +3 more
openaire   +1 more source

Sepiolite Nanofibers Decorated With Zn Single Sites: A Sustainable Filler for Mechanically Robust and Self‐Healing Ionomeric Elastomer Composites

Polymer Composites, EarlyView.
Fabrication of XNBR nanocomposites reinforced with Zn single‐site decorated sepiolite nanofibers. The resulting composites exhibit high mechanical strength and self‐healing performance, driven by dynamic interactions between the Zn single sites and the XNBR chains (inset).
Paolo Valagussa, Silvia Mostoni, Marianella Hernandez Santana, Itziar Mas Giner, Michele Mauri, Roberto Simonutti, Sandra Diré, Emanuela Callone, Barbara Di Credico, Roberto Scotti, Massimiliano D'Arienzo   +10 more
wiley   +1 more source

Suitability of slightly saline irrigation for alleviating drought stress in taro and yam in Tonga: Implications for climate‐resilient Pacific cropping systems

PLANTS, PEOPLE, PLANET, EarlyView.
There is an increasing risk of drought and salinisation of soil and groundwater globally, including in Pacific Island countries such as Tonga. Irrigating crops with slightly saline water, such as that produced by emerging desalination technologies, could help to alleviate droughts.
Harry Myrans, Mona E. Mahani, Lily McDonald, Vunivesi Minoneti, Hepisipa Lavaka, Salote Puletau, Viliami T. Manu, Juan F. Torres, Roslyn M. Gleadow, Steven Crimp   +9 more
wiley   +1 more source