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  1. 541

    The Borrachudos Granitic Suite: Paleo- to Mesoproterozoic A-type Magmatism in the Southeastern São Francisco Craton (SE Brazil) by IVO ANTONIO DUSSIN, MARIO LUIZ S.C. CHAVES, TANIA MARA DUSSIN, PHILLIPPE ROSSI, JACQUES CHARVET

    Published 2025-01-01
    “…To investigate the nature of this magmatism, mineralogical, geochemical, Nd-Sr isotopic studies in the BGS and genetically related metarhyolites inside the fold belt were carried out. …”
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    Article
  2. 542

    Parchment Glutamine Index (PQI): A novel method to estimate glutamine deamidation levels in parchment collagen obtained from low-quality MALDI-TOF data by Nair, Bharath, Palomo, Ismael Rodríguez, Markussen, Bo, Wiuf, Carsten, Fiddyment, Sarah, Collins, Matthew James

    Published 2023-01-01
    “…After pre-processing raw spectra, we used weighted least-squares linear regression to estimate Q deamidation levels from the convoluted isotopic envelope for seven collagen-peptide markers. …”
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    Article
  3. 543

    The small GTPase MRAS is a broken switch by Gabriela Bernal Astrain, Regina Strakhova, Chang Hwa Jo, Emma Teszner, Ryan C. Killoran, Matthew J. Smith

    Published 2025-01-01
    “…Acquisition of NMR spectra from isotopically labeled MRAS in live cells validated the GTPase remains fully GDP-loaded, even a supposed activated mutant. …”
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    Article
  4. 544

    Passive and active suppression of transduced noise in silicon spin qubits by Jaemin Park, Hyeongyu Jang, Hanseo Sohn, Jonginn Yun, Younguk Song, Byungwoo Kang, Lucas E. A. Stehouwer, Davide Degli Esposti, Giordano Scappucci, Dohun Kim

    Published 2025-01-01
    “…While nuclear spin-free materials, such as isotopically purified silicon, exhibit intrinsically promising coherence properties for electron spin qubits, the omnipresent charge noise, when converted to magnetic noise under a strong magnetic field gradient, often hinders stable qubit operation within a time frame comparable to the data acquisition time. …”
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    Article
  5. 545

    From bowls to pots: The dairying revolution in Northwest Turkey, a view from Barcın Höyük, 6600 to 6000 BCE. by Hadi Özbal, Adria Breu, Laurens Thissen, Fokke Gerritsen, Elisha van den Bos, Alfred Galik, Turhan Doğan, Muhiddin Çergel, Adnan Şimşek, Ayla Türkekul, Rana Özbal

    Published 2024-01-01
    “…The lipid residue data discussed in this paper derive from 143 isotopic results subsampled from 173 organic residues obtained from 805 Neolithic potsherds and suggest that bowls and four-lugged pots may have been preferred containers for processing milk. …”
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    Article
  6. 546

    Geochemistry of Formation Water and Implications for Ultradeep Tight Sandstone of DK Gas Field in Kuqa Depression by Xiaobo Guo, Libin Zhao, Wei Han, Longfei Zhou, Zhilong Huang, Xiongwei Sun, Xuejun Yang, Tonghui Zhang, Chenglin Zhang

    Published 2022-01-01
    “…The formation water may have been influenced by early seawater, but it is not significant and is more likely to have been influenced by water seepage from the overlying gypsum strata. The Sr, H, and O isotopes reveal that the different types of formation water have good homology and are not affected by atmospheric precipitation, which is propitious to the preservation of natural gas.…”
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    Article
  7. 547
  8. 548

    Determination of radon source in basaltic groundwater, using geochemical tracers and chemometric statistical analysis by Jim Stanley, Lucy Reading

    Published 2025-02-01
    “…Geochemical tracers such as stable isotopes are widely used in groundwater studies for determining aquifer connectivity and groundwater-surface water interactions. …”
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    Article
  9. 549

    REE Geochemistry of Euphrates River, Turkey by Leyla Kalender, Gamze Aytimur

    Published 2016-01-01
    “…The geochemical studies show that 87Sr/86Sr and 143Nd/144Nd isotopic compositions in the Euphrates River bank sediments are 0.7053, 0.7048, and 0.7057 and 0.512654, 0.512836, and 0.512775, respectively. …”
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  10. 550

    The Concept of the Heat Removal System of a High-Flux Research Reactor by Vitaly Uzikov, Ildar Suleimanov, Irina Uzikova

    Published 2022-01-01
    “…The proposed concept of a heat removal system for a high-flux reactor facility combines the increased reliability of safe heat removal from the core and the convenience of handling irradiation cells, for example, in the production of isotopes. The concept provides for the location of a compact core in a pressurized vessel and the placement of a neutron reflector around the vessel in the reactor pool. …”
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  11. 551

    Light Hydrocarbon Geochemistry: Insight into Mississippian Crude Oil Sources from the Anadarko Basin, Oklahoma, USA by Ibrahim Atwah, Stephen Sweet, John Pantano, Anthony Knap

    Published 2019-01-01
    “…Such chemical variations are regularly obtained from bulk, molecular, and isotopic characteristics. In this study, we present a new geochemical investigation of gasoline range hydrocarbons, biomarkers, phenols, and diamondoids in crude oils produced from Mississippian carbonate and Woodford Shale formations. …”
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  12. 552

    Salivary Metabolomics of Well and Poorly Controlled Type 1 and Type 2 Diabetes by Sompop Bencharit, James Carlson, Warren C. Byrd, Escher L. Howard-Williams, Jackson T. Seagroves, Susan McRitchie, John B. Buse, Susan Sumner

    Published 2022-01-01
    “…Samples were spiked using an isotopically labeled internal standard and analyzed by UPLC-TOF-MS using a Waters SYNAPT G2-Si mass spectrometer. …”
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  13. 553

    Increased DNA Dicarbonyl Glycation and Oxidation Markers in Patients with Type 2 Diabetes and Link to Diabetic Nephropathy by Sahar Waris, Brigitte M. Winklhofer-Roob, Johannes M. Roob, Sebastian Fuchs, Harald Sourij, Naila Rabbani, Paul J. Thornalley

    Published 2015-01-01
    “…DNA oxidation and glycation adducts were analysed in plasma and urine by stable isotopic dilution analysis liquid chromatography-tandem mass spectrometry. …”
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    Article
  14. 554

    Exploring the possible two-proton radioactivity of 38,39Ti by B. Huang, F.P. Bai, J.G. Li, D.Q. Fang, S.M. Wang

    Published 2025-02-01
    “…To provide more accurate information for further studies, we utilize the Gamow shell model (GSM) and the Gamow coupled channel (GCC) method to analyze the prospective 2p radioactivity of isotopes 38,39Ti. Our calculations suggest that 39Ti is indeed a viable candidate for 2p emission. …”
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    Article
  15. 555

    Environment of European Last Mammoths: Reconstructing the Landcover of the Eastern Baltic Area at the Pleistocene/Holocene Transition by Ivan Krivokorin, Anneli Poska, Jüri Vassiljev, Siim Veski, Leeli Amon

    Published 2025-01-01
    “…A comparison between the isotopic values of nitrogen (δ<sup>15</sup>N) and carbon (δ<sup>13</sup>C) obtained from mammoths’ molars from 14.3 and 11.3 to 43.5 and 39.1 ka cal BP showed that mammoths experienced a decline in the nutritional value of their diet, resulting in their demise in the Eastern Baltic.…”
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  16. 556

    The Joint Research Centre’s Expertise in Nuclear Safeguards Sample Analysis by Hernández Ana María Sánchez, Buda Razvan, Casteleyn Karin, Commin Lorelei, D’Amati Francesco, Horta Joan, Le Terrier Arnaud, Mühleisen Artur, Stohr Sarah, Schorlé Hélène, Toma Magdalena, Zuñiga Martin Vargas, Wojnowski Denis, Zsigrai Jozsef, Mayer Klaus

    Published 2025-01-01
    “…The Analytical Service at JRC Karlsruhe is dedicated to maintaining the highest standards of quality, accuracy, and traceability in its analytical measurements, with a focus on uranium and plutonium content and isotopic composition. Our laboratory is accredited according to ISO/IEC 17025 and has a proven track record of successful participation in numerous Inter-Laboratory Comparisons (ILCs), demonstrating our expertise and commitment to excellence in nuclear material analysis. …”
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  19. 559

    Petrology and Tectonic Geophysics of Massive and Foliated Eclogites in the North Qilian Orogenic Belt: Changes in Mineral Composition, Oxygen Fugacity, and Fabric during Exhumation by Feng Wang, Daorong Zhou, Xunhua Zhang

    Published 2022-01-01
    “…Combined with the characteristics of in situ Lu-Hf isotopes, Ce4+/Ce3+ ratios of zircons, relative oxygen fugacity, and absolute oxygen fugacity, it is shown that the oxygen fugacity of the granodiorite porphyry (BL023, BLO31, DB048) of the folio chemical and massive eclogite deposits are all located in MH (magnetite-hematite) buffer zone. …”
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  20. 560