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421
Comparaison de deux « populations » de la deuxième moitié du Ve millénaire avant notre ère : approche anthropométrique
Published 2009-12-01“…However, it is necessary to complete this research by studying non metric anatomical variation on the one hand and diet by stable isotopic analysis on the other hand; this will allow us to precise and interpret the differences between both series.…”
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422
Study on the detection efficiencies of liquid 99Tcm, 131I, and 18F in a well-type NaI(Tl) gamma spectrometer
Published 2025-02-01“…Objective: To assess the detection efficiencies of liquid radioisotopes in a well-type NaI(Tl) gamma spectrometer, focusing on the short-lived isotopes 99Tcm, 131I, and 18F. Methods: The detection efficiencies of liquid 99Tcm, 131I, and 18F in a well-type NaI(Tl) gamma spectrometer were systematically investigated through calibration experiments and Monte Carlo simulations, and accounting for the coincidence-summing effect. …”
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423
Symbiotic nutrient cycling enables the long-term survival of Aiptasia in the absence of heterotrophic food sources
Published 2023-05-01“…This shrinking was accompanied by a reduction in host protein content and algal density, indicative of severe nitrogen limitation. Nonetheless, isotopic labeling experiments combined with NanoSIMS imaging revealed that the contribution of algal-derived nutrients to the host metabolism remained unaffected due to an increase in algal photosynthesis and more efficient carbon translocation. …”
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424
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425
Forecast of brine blowout zones in the Amu Darya basin and analysis of brine blowout in oil and gas fields
Published 2024-01-01“…The study examined the geological structure through the assessment of lithological and facies maps and sections, the geochemical content of salts and isotopic composition of waters, and hydrogeological methods, including analysis of groundwater regime and well drilling. …”
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426
Determination of radon source in basaltic groundwater, using geochemical tracers and chemometric statistical analysis
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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427
REE Geochemistry of Euphrates River, Turkey
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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428
Hydrochemical Characteristics and Formation of the Madeng Hot Spring in Yunnan, China
Published 2018-01-01“…Stable hydrogen and oxygen isotopes indicate that the hot water is of meteoric origin. …”
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429
Fast and Simple LC-MS/MS Method for Rifampicin Quantification in Human Plasma
Published 2019-01-01“…The plasma samples containing rifampicin and isotopically labelled internal standard rifampicin D8, were cleaned up using a Captiva ND Lipids filtration plate. …”
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430
Prediction of Europium Retention in Perovskite: Potential Candidates for an Engineering Barrier in the Disposal of Radioactive Waste
Published 2021-01-01“…Perovskites, such as tausonite, are crystalline metal oxides with excellent optical and photocatalytic properties and have also been used successfully in the retention of metals, simulating the isotopes of uranium and plutonium. In this work, different pseudo-order and thermodynamic models were studied to achieve the prediction of the sorption of Eu3+ (chemical analogous for actinides) in tausonite. …”
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431
Diagenetic Heterogeneity of Deep Sandstones and Its Relationship to Oil Emplacement: A Case Study from the Middle Jurassic Toutunhe Formation in the Fukang Sag, Central Junggar Bas...
Published 2017-01-01“…Based on petrography, SEM, stable isotopes, and fluid inclusion analyses, the goals of this study were to investigate the effect of depositional lithofacies on sandstone diagenetic heterogeneity and to examine the relationship between diagenetic evolution and oil charge within a heterogeneous reservoir. …”
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432
The Borrachudos Granitic Suite: Paleo- to Mesoproterozoic A-type Magmatism in the Southeastern São Francisco Craton (SE Brazil)
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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433
Parchment Glutamine Index (PQI): A novel method to estimate glutamine deamidation levels in parchment collagen obtained from low-quality MALDI-TOF data
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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434
The small GTPase MRAS is a broken switch
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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435
Geochemistry of Formation Water and Implications for Ultradeep Tight Sandstone of DK Gas Field in Kuqa Depression
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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436
The Concept of the Heat Removal System of a High-Flux Research Reactor
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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437
Light Hydrocarbon Geochemistry: Insight into Mississippian Crude Oil Sources from the Anadarko Basin, Oklahoma, USA
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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438
Salivary Metabolomics of Well and Poorly Controlled Type 1 and Type 2 Diabetes
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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439
Increased DNA Dicarbonyl Glycation and Oxidation Markers in Patients with Type 2 Diabetes and Link to Diabetic Nephropathy
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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440
Exploring the possible two-proton radioactivity of 38,39Ti
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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