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  1. 2161
    “…During the 3-year experimental period, grain yields of ZD958 and DH605 were reduced by 83.4%, 34.2%, 53.1% and 79.3%, 24.2%, 57.6% as compared to the CK by treatments S3, S2, and S1, respectively. (13)CO(2) stable isotope tracing revealed that shading differentially affected the photosynthate transfer rate in different stages; photosynthates were transferred from top to bottom plant parts, in the order control > S2 > S1 > S3. …”
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    Response of Summer Maize Photosynthate Accumulation and Distribution to Shading Stress Assessed by Using (13)CO(2) Stable Isotope Tracer in the Field
  2. 2162
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    Investigation of useful carbon tracers for (13)C-metabolic flux analysis of Escherichia coli by considering five experimentally determined flux distributions
  3. 2163
    “…RESULTS: [(18)F]Fluoro-PEG-folate PET and ex vivo tissue distribution studies revealed a significant (p < 0.01) 2-fold lower tracer uptake in both liver and spleen of MTX-treated arthritic rats. …”
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    Imaging and Methotrexate Response Monitoring of Systemic Inflammation in Arthritic Rats Employing the Macrophage PET Tracer [(18)F]Fluoro-PEG-Folate
  4. 2164
    “…To date, there is a lack of agonist PET tracers for the D1 receptors labeled with 18F with relevance in clinical studies. …”
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    T156. IN VIVO CHARACTERIZATION OF THE FIRST AGONIST DOPAMINE D1 RECEPTORS PET IMAGING TRACER [18F]MNI-968 IN HUMAN
  5. 2165
    “…The current study aimed at the development and evaluation of a potent tracer targeting the P2X(7) receptor, to which end four adamantanyl benzamide analogues with high affinity for the human P2X(7) receptor were labelled with carbon-11. …”
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    Identification of the allosteric P2X(7) receptor antagonist [(11)C]SMW139 as a PET tracer of microglial activation
  6. 2166
    “…In terms of image quality, myocardium-to-blood contrast and signal-to-noise ratios were not significantly different between groups. …”
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    Consistent tracer administration profile improves test–retest repeatability of myocardial blood flow quantification with (82)Rb dynamic PET imaging
  7. 2167
    “…In this study we apply a suite of chemical and isotopic tracers in order to evaluate groundwater flow and assess contamination trends. …”
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    Groundwater Flow Processes and Human Impact along the Arid US-Mexican Border, Evidenced by Environmental Tracers: The Case of Tecate, Baja California
  8. 2168
    “…We demonstrate that the archaeological human remains from Gua Harimau cave, Sumatra, Indonesia provide clear evidence for at least two (cranio-morphometrically defined) and perhaps even three (in the context of the ancient mtDNA results) distinct populations from two separate time periods. …”
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    Cranio-morphometric and aDNA corroboration of the Austronesian dispersal model in ancient Island Southeast Asia: Support from Gua Harimau, Indonesia
  9. 2169
    “…A novel Al(18)F labelled peptide tracer for PET imaging of oxytocin receptor has been accessed through a high radiochemical yield approach. …”
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    High-yielding (18)F radiosynthesis of a novel oxytocin receptor tracer, a probe for nose-to-brain oxytocin uptake in vivo
  10. 2170
    “…The infected necrotic tissue was removed during surgery. Follow-up dual-tracer PET revealed no signs of persistent infection. …”
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    Presurgical localization of infected avascular bone segments in chronic complicated posttraumatic osteomyelitis in the lower extremity using dual-tracer PET/CT
  11. 2171
    “…Cholera toxin subunit B (CTB) and Fluorogold(FG) are two widely utilized retrograde tracers to assess the number and function of retinal ganglion cells (RGCs). …”
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    Did you choose appropriate tracer for retrograde tracing of retinal ganglion cells? The differences between cholera toxin subunit B and Fluorogold
  12. 2172
    “…Peak SUV/30 min and peak SUV/60 min ratios were calculated for the different brain regions of the adult and immature rats, with a peak SUV/60 min ratio of more than 4.5 in the striatum of adult rats. …”
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    In vivo characterization of a novel norepinephrine transporter PET tracer [(18)F]NS12137 in adult and immature Sprague-Dawley rats
  13. 2173
    “…In biodistribution on mice, radioactivity levels for both tracers were relatively high in the kidney, small intestine, and liver at 60 min post-injection. …”
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    Radiosynthesis and in vivo evaluation of (11)C-labeled BMS-193885 and its desmethyl analog as PET tracers for neuropeptide Y1 receptors
  14. 2174
    “…We investigated the influence of a hydrophilic HEHEHE-tag ((HE)(3)-tag) and two different gallium-68/chelator-complexes on the biodistribution of Z(08698) with the aim to improve the tracer for PET imaging. Affibody molecules (HE)(3)-Z(08698)-X and Z(08698)-X (X = NOTA, NODAGA) were produced and labeled with gallium-68. …”
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    Molecular Design of HER3-Targeting Affibody Molecules: Influence of Chelator and Presence of HEHEHE-Tag on Biodistribution of (68)Ga-Labeled Tracers
  15. 2175
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    Modified TIG Welding Joint Process: An Approach to Improve Microstructure and Fracto-Mechanical Behavior by MWCNTs Inducement in Al-Mg-Si Alloy
  16. 2176
    “…Agonist tracers appear to be more sensitive to endogenous neurotransmitter challenge than antagonists, as was originally expected. …”
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    Hunting for the high‐affinity state of G‐protein‐coupled receptors with agonist tracers: Theoretical and practical considerations for positron emission tomography imaging
  17. 2177
    “…Recently, the use of direct [(11)C]CO(2) fixation for the syntheses of (11)C-tracers has gained interest in the radiochemical community due to its importance in terms of radiochemical versatility and for permitting the direct employment of the cyclotron-produced precursor [(11)C]CO(2). …”
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    Fully-automated radiosynthesis of the amyloid tracer [(11)C] PiB via direct [(11)C]CO(2) fixation-reduction
  18. 2178
    “…For the forest soil, we found no rapid consumption of the (15)N tracer, and the majority of tracer (78%) remained unconsumed at the end of the incubation period. …”
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    Full (15)N tracer accounting to revisit major assumptions of (15)N isotope pool dilution approaches for gross nitrogen mineralization
  19. 2179
    “…Future research will apply the same methodology to other anatomical targets as well as to the use of different tracers. Preclinical nuclear medicine imaging using ultra-low tracer doses, demonstrated the potential to obtain reasonable quality images and diminishing radiation surveillance in accordance with as low as reasonably achievable tracer levels.…”
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    2516 Ultra-low Na18F tracer dosing for preclinical skeletal imaging enables new concepts in digital PET/CT
  20. 2180
    “…To evaluate the relevance of the data generated, the four IR formulations were also studied in a four-way cross-over study in 14 healthy volunteers by using the salivary tracer technique (STT). It could be shown that the IR formulations behaved differently in the in vitro test programs. …”
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    Comparison of In Vitro and In Vivo Results Using the GastroDuo and the Salivary Tracer Technique: Immediate Release Dosage Forms under Fasting Conditions
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