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521
Brain connectivity by single-photon emission computed tomography and graph theory: a mini-review
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522
Comparative Studies of Nonlinear Models and Their Applications to Magmatic Evolution and Crustal Growth of the Huai’an Terrane in the North China Craton
Published 2025-01-01“…Geochemical data, including U-Pb zircon dating and Lu-Hf isotopic analyses, further validate the models by delineating distinct phases of crustal growth and reworking within the Trans-North China Orogen. …”
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523
Seasonal Trophic Shift of Littoral Consumers in Eutrophic Lake Taihu (China) Revealed by a Two-Source Mixing Model
Published 2011-01-01“…Seasonal fluctuations in consumer σ13C and σ15N were attributed to the combined impacts of temporal variation in isotopic signatures of basal resources and the diet shift of fishes. …”
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524
Authentication of Processed Epimedii folium by EA-IRMS
Published 2020-01-01“…Elemental analyzer coupled with isotopic ratio mass spectrometry (EA-IRMS) was applied to determine the δ13C values of the cyclohexane extracts of those samples. …”
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525
Legacy of Dr. Saul Hertz
Published 2024-12-01“…Together with physicist Arthur Roberts, he studied the pharmacokinetics of radioactive isotopes of iodine and the possibility of using them for the diagnosis and treatment of thyroid disease (TD). …”
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526
Recovery of Strategic High-Value Fission Products from Spent Nuclear Fuel During Reprocessing
Published 2025-01-01“…By recovering these resources, such as the platinum group metals (PGMs – Ru, Rh, Pd, Ag), rare earth elements (REEs – Y, La to Dy), and noble gases (He, Kr, Xe), and various other useful isotopes, from SNF during reprocessing operations, the high costs incurred have the potential to be partially or completely offset, in addition to benefits from reducing waste volumes. …”
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527
Evidence of Tectonic Control on the Geochemical Features of the Volatiles Vented along the Nebrodi-Peloritani Mts (Southern Apennine Chain, Italy)
Published 2019-01-01“…The geochemical features of the collected gases show that the pristine composition has been modified by gas-water interaction (GWI) and degassing processes. The 3He/4He isotopic ratio in the range of 0.7-2.8 Ra highlights variable contributions of mantle-derived helium, representing an unusual feature for the crustal regime of the study areas characterized by the widespread presence of 4He-producer metamorphic rocks. …”
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528
Multivariate Analysis, Mass Balance Techniques, and Statistical Tests as Tools in Igneous Petrology: Application to the Sierra de las Cruces Volcanic Range (Mexican Volcanic Belt)
Published 2014-01-01“…Magmatic processes have usually been identified and evaluated using qualitative or semiquantitative geochemical or isotopic tools based on a restricted number of variables. …”
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529
La molaire néandertalienne de la grotte Vaufrey (Dordogne, France)
Published 2004-12-01“…In this level, which has a U/Th date of 74 ± 18Ka (Isotopic Stage 4), a human tooth, Vaufrey 1, was recovered.The fossil is the lower left second permanent molar of an adult. …”
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530
Numerical Simulation of Decontamination of Airborne Fission Products during In-Vessel Release Phase by Containment Spray
Published 2018-01-01“…The sensitivity and removal rate of airborne isotopes with the spray system have been simulated versus the spray activation and failure time, droplet size, and pH value. …”
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531
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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532
Evaluation of 2′-Deoxy-2′-Flouro-5-Methyl-1-β--Arabinofuranosyluracil as a Potential Gene Imaging Agent for Expression In Vivo
Published 2002-04-01“…These results suggest that while FMAU labeled with PET isotopes may be useful for imaging HSV-tk -expressing tumors in vivo, multitracer studies across additional tumor models are necessary in order to identify an optimal PET radiotracer.…”
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533
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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534
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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535
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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536
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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537
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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538
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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539
The Amazonian mangrove systems accumulate and release dissolved neodymium and hafnium to the oceans
Published 2025-01-01“…Here we find consistent radiogenic neodymium and hafnium isotopic compositions of porewater, sedimentary iron-manganese oxyhydroxides and coastal seawater, suggesting that the Amazonian mangrove belt supplies trace elements through porewater discharge, dissolution of iron-manganese oxyhydroxides and their interactions with seawater. …”
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540
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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