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  1. 301

    Versatile nitrate-respiring heterotrophs are previously concealed contributors to sulfur cycle by Bo Shao, Yuan-Guo Xie, Long Zhang, Yang Ruan, Bin Liang, Ruochen Zhang, Xijun Xu, Wei Wang, Zhengda Lin, Xuanyuan Pei, Xueting Wang, Lei Zhao, Xu Zhou, Xiaohui Wu, Defeng Xing, Aijie Wang, Duu-Jong Lee, Nanqi Ren, Donald E. Canfield, Brian P. Hedlund, Zheng-Shuang Hua, Chuan Chen

    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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  2. 302
  3. 303

    Electron paramagnetic resonance spectroscopy of a scheelite crystal using microwave-photon counting by E. Billaud, L. Balembois, J. Travesedo, M. Le Dantec, M. Rančić, E. Albertinale, R. Truong, S. Bertaina, T. Chanelière, P. Goldner, D. Estève, D. Vion, E. Flurin, P. Bertet

    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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  4. 304

    Cyclotrons as Drivers for Precision Neutrino Measurements by A. Adelmann, J. Alonso, W. A. Barletta, J. M. Conrad, M. H. Shaevitz, J. Spitz, M. Toups, L. A. Winslow

    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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    Article
  5. 305

    Advanced Method for Calculations of Core Burn-Up, Activation of Structural Materials, and Spallation Products Accumulation in Accelerator-Driven Systems by A. Stankovskiy, G. Van den Eynde

    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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  6. 306

    Forensic examinations in the investigations of crimes involving animals: a review by Cristiano Mougenot Mores, Márcio Botelho de Castro, Cristiano Barros de Melo

    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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  7. 307

    Gliricidia (Gliricidia sepium) Green Manures as a Potential Source of N for Maize Production in the Tropics by Abdul R. Bah, Zaharah A. Rahman

    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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  8. 308

    On the five base quantities of nature and SI (The International System of Units) by Kaptay G.

    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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  9. 309

    Through a Lattice Darkly: Shedding Light on Electron-Phonon Coupling in the High Tc Cuprates by D. R. Garcia, A. Lanzara

    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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  10. 310

    No increase is detected and modeled for the seasonal cycle amplitude of <i>δ</i><sup>13</sup>C of atmospheric carbon dioxide by F. Joos, F. Joos, S. Lienert, S. Lienert, S. Zaehle

    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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  11. 311

    Groundwater Recharge and Hydrogeochemical Evolution in Leizhou Peninsula, China by Yintao Lu, Changyuan Tang, Jianyao Chen, Junhong Chen

    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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  12. 312

    Mechanistic Investigation of Oxidation of Phenylpropanolamine with N-Bromobenzenesulfonamide in Alkaline Medium: A Kinetic Approach by Ningegowda Prasad, Kikkeri N. Mohana

    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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  13. 313

    Orbital and suborbital temperature variability in the central Mediterranean across the Pliocene/Pleistocene transition. by Elena Zanola, Teresa Rodrigues, Sergio Bonomo, Patrizia Ferretti, Eliana Fornaciari, Agata Di Stefano, Alessandro Incarbona, Nereo Preto, Isabella Raffi, Luca Capraro

    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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  14. 314

    Long-Term Stability of Hydromorphone in Human Plasma Frozen at −20°C for Three Years Quantified by LC-MS/MS by Andreas Wehrfritz, Stefanie Schmidt, Harald Ihmsen, Jürgen Schüttler, Christian Jeleazcov

    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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  15. 315

    Methane trapping in permafrost soils: a biogeochemical dataset across Alaskan boreal-Arctic gradient by Jinhyun Kim, Yongwon Kim, Sungjin Nam, Ji Young Jung, You Jin Kim, Jeong Ho Hwang, Mincheol Kim

    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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  16. 316

    Tryptophan Kynurenine Pathway-Based Imaging Agents for Brain Disorders and Oncology—From Bench to Bedside by Erik Stauff, Wenqi Xu, Heidi H. Kecskemethy, Sigrid A. Langhans, Vinay V. R. Kandula, Lauren W. Averill, Xuyi Yue

    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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  17. 317

    Performance Evaluation of Car Cargo Scanner Systems for Determining Linear Attenuation Coefficients of Aluminum Metal Sheets: Modeling by Amir Mohammad Beigzadeh, Mojtaba Askari

    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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  18. 318

    Ionization Efficiency in a Hot Flat Disc-Shaped Cavity by M. Turek

    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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  19. 319

    The Badhwar‐O'Neill 2020 GCR Model by T. C. Slaba, K. Whitman

    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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  20. 320

    Modeling Groundwater Resources in Data-Scarce Regions for Sustainable Management: Methodologies and Limits by Iolanda Borzì

    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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