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301
Versatile nitrate-respiring heterotrophs are previously concealed contributors to sulfur cycle
Published 2025-01-01“…Here, we applied microcosm incubations, community-isotope-corrected DNA stable-isotope probing, and metagenomics to characterize a cohort of heterotrophic denitrifiers in estuarine sediments that thrive by coupling sulfur oxidation with denitrification through chemolithoheterotrophic metabolism. …”
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302
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303
Electron paramagnetic resonance spectroscopy of a scheelite crystal using microwave-photon counting
Published 2025-01-01“…Investigating the zero nuclear spin isotope (I=0) transition of Er^{3+}:CaWO_{4} as a model system, we provide a quantitative analysis of the time-dependent photon counting rate following an excitation pulse, as a function of its power. …”
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304
Cyclotrons as Drivers for Precision Neutrino Measurements
Published 2014-01-01“…However, pion/muon and isotope decay-at-rest sources qualify. The ideal drivers for decay-at-rest sources are cyclotron accelerators, which are compact and relatively inexpensive. …”
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305
Advanced Method for Calculations of Core Burn-Up, Activation of Structural Materials, and Spallation Products Accumulation in Accelerator-Driven Systems
Published 2012-01-01“…Secondly, it uses a state-of-the-art numerical solver for the first-order ordinary differential equations describing the isotope balances, namely, a Radau IIA implicit Runge-Kutta method. …”
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306
Forensic examinations in the investigations of crimes involving animals: a review
Published 2025-01-01“…The review covers key aspects of forensic examinations conducted by criminal experts, including forensic entomology, forensic toxicology, imaging techniques, taxonomic identifications, bird rings, investigations of mistreatment, forensic veterinary pathology, forensic genetics, and isotope ratio analysis. The field of veterinary forensics, with its diverse resources, established techniques, highly trained and continually updated experts, and the latest advancements in criminalistics, is essential for properly addressing judicial demands.…”
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307
Gliricidia (Gliricidia sepium) Green Manures as a Potential Source of N for Maize Production in the Tropics
Published 2001-01-01“…Net mineral N accumulation was compared in mulched and incorporated treatments in a field incubation study. The 15N isotope dilution technique was used to quantify N supplied to maize by Gliricidia leaves in an alley cropping. …”
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308
On the five base quantities of nature and SI (The International System of Units)
Published 2011-01-01“…The amount of substance (mole) is not taken as a base quantity of nature and the Avogadro constant is not considered as a fundamental constant of nature, as they are both based on an arbitrary definition (due to the arbitrary value of 0.012 kg for the mass of 1 mole of C-12 isotope). Therefore, the amount of substance (mole) is moved from the list of base quantities to the category of the supplementary units (to be re-created after its abrogation in 1995). …”
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309
Through a Lattice Darkly: Shedding Light on Electron-Phonon Coupling in the High Tc Cuprates
Published 2010-01-01“…Our survey begins with the establishment of the ubiquitous nodal cuprate kink leading to how isotope substitution has shed a critical new perspective on the role and strength of electron-phonon coupling. …”
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310
No increase is detected and modeled for the seasonal cycle amplitude of <i>δ</i><sup>13</sup>C of atmospheric carbon dioxide
Published 2025-01-01“…Disequilibrium fluxes contribute little to the seasonal amplitude of the net land isotope flux north of 40° N but contribute near equally to the isotopic flux associated with growing season net carbon uptake in tropical and Southern Hemisphere (SH) ecosystems, pointing to the importance of monitoring <span class="inline-formula"><i>δ</i><sup>13</sup></span>C<span class="inline-formula"><sub>a</sub></span> over these ecosystems. …”
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311
Groundwater Recharge and Hydrogeochemical Evolution in Leizhou Peninsula, China
Published 2015-01-01“…An analysis of the stable isotopes and the major ions in the surface water and groundwater in the Leizhou Peninsula was performed to identify the sources and recharge mechanisms of the groundwater. …”
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312
Mechanistic Investigation of Oxidation of Phenylpropanolamine with N-Bromobenzenesulfonamide in Alkaline Medium: A Kinetic Approach
Published 2008-01-01“…The rate decreased in D2O medium and the normal isotope effect k' (H2O) / k' (D2O) is 2.18. Proton inventory studies have been made in H2O - D2O mixtures. …”
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313
Orbital and suborbital temperature variability in the central Mediterranean across the Pliocene/Pleistocene transition.
Published 2024-01-01“…In addition, two suborbital periodicities in the ~5 kyr and ~8 kyr time domains provide a pervasive spectral signal that proves to be especially strong during the MIS (Marine Isotope Stage) 100 glacial, at the inception of the Northern Hemisphere Glaciation. …”
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314
Long-Term Stability of Hydromorphone in Human Plasma Frozen at −20°C for Three Years Quantified by LC-MS/MS
Published 2022-01-01“…Blood samples were disposed using solid-phase extraction with an additional substitution of stable isotope labelled hydromorphone as an internal standard. …”
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315
Methane trapping in permafrost soils: a biogeochemical dataset across Alaskan boreal-Arctic gradient
Published 2025-01-01“…This dataset includes vertical profiles of trapped greenhouse gases, their stable isotope signatures, soil physicochemical properties, and the composition and abundance of key methanogenic and methanotrophic genes. …”
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316
Tryptophan Kynurenine Pathway-Based Imaging Agents for Brain Disorders and Oncology—From Bench to Bedside
Published 2025-01-01“…In addition, historically Trp-based radiopharmaceuticals were synthesized with the short-lived isotope carbon-11. A newer generation of Trp-based imaging agents using the longer half-lived and commercially available isotopes, such as fluorine-18 and iodine-124, are being developed. …”
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317
Performance Evaluation of Car Cargo Scanner Systems for Determining Linear Attenuation Coefficients of Aluminum Metal Sheets: Modeling
Published 2024-12-01“…This system is based on a scintillation array detector and a radiation generator based on gamma emitter isotope. This research includes modeling the interaction of gamma radiation with the commonly used metal aluminum and analyzing the properties of its linear attenuation coefficient based on the data obtained from the scintillation detector system. …”
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318
Ionization Efficiency in a Hot Flat Disc-Shaped Cavity
Published 2020-06-01“…Hot cavity ion sources of different kinds are widely used in nuclear and mass spectroscopy, especially in on-line isotope separation devices attracting attention of scientists and engineers looking for high ionization efficiency, robustness and beam purity. …”
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319
The Badhwar‐O'Neill 2020 GCR Model
Published 2020-06-01“…The new model relies on daily integral flux from the Advanced Composition Explorer Cosmic Ray Isotope Spectrometer (ACE/CRIS) to describe solar activity. …”
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320
Modeling Groundwater Resources in Data-Scarce Regions for Sustainable Management: Methodologies and Limits
Published 2025-01-01“…This systematic review of Scopus-indexed papers identifies various approaches to address these challenges, including coupled hydrological-groundwater models, machine learning techniques, distributed hydrological models, water balance models, 3D groundwater flow modeling, geostatistical techniques, remote sensing-based approaches, isotope-based methods, global model downscaling, and integrated modeling approaches. …”
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