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  1. 2521
    por Roncato, Sergio
    Publicado 2019
    “…Saturn appears to be surrounded by rings which hide it to a certain extent and then continue behind the outline of the planet. …”
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    Saturn and its Rings: Four Centuries of Imperfect Amodal Completion
  2. 2522
    “…OBJECTIVES: The halo ring can be applied in children, through skeletal traction or a halo vest device, to treat many cervical spine pathologies, including traumatic injuries and pathologies related to deformities. …”
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    Evaluation of Alternative Halo Ring Positions in Children Using Tomography
  3. 2523
    “…NMR and SEC-IR results showed that in the presence of a weak organic base such as triethylamine, the ring-opening polymerization (ROP) of lactide takes place in a controlled manner without need of protecting the cathechol units. …”
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    Catechol End-Functionalized Polylactide by Organocatalyzed Ring-Opening Polymerization
  4. 2524
    “…However, such evidence is still very limited and poorly known in fossil record; and the relationship between tree ring phototropism and rotation of tectonic blocks is unclear. …”
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    Tree ring phototropism and implications for the rotation of the North China Block
  5. 2525
    “…Here, an organic primary explosive featuring a fused-ring structure, 6-nitro-7-azido-pyrazol[3,4-d][1,2,3]triazine-2-oxide, was designed and synthesized through a facile two-step reaction from commercially available reagents. …”
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    A green metal-free fused-ring initiating substance
  6. 2526
    por Woo, Eamor M., Lugito, Graecia
    Publicado 2016
    “…The cracks can take many shapes that bear extremely striking similarity to the ring-band or lamellar patterns in the same spherulites. …”
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    Cracks in Polymer Spherulites: Phenomenological Mechanisms in Correlation with Ring Bands
  7. 2527
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    Editorial: Advanced Catalysts in Ring-Opening Polymerization of Cyclic Esters
  8. 2528
    “…This design of ultra-wideband arrays considers the synthesis of concentric rings in two cases: 1) non-uniform spacing between rings with non-uniform spacing between antenna elements of the same ring (UW-ACRA(elements)); and 2) non-uniform spacing between rings assuming that spacing between antenna elements of the same ring to be equal (UW-ACRA(rings)). …”
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    Non-Uniform Concentric Rings Design for Ultra-Wideband Arrays
  9. 2529
    “…BACKGROUND: Mitral valve repair with the use of an annuloplasty ring is the procedure of choice in patients with significant mitral regurgitation (MR) due to floppy mitral valve (FMV)/mitral valve prolapse (MVP). …”
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    Mitral valve repair: moving towards a personalized ring
  10. 2530
    “…A non-reciprocal quantum ring, where one arm of the ring contains the Rashba spin-orbit interaction but not in the other arm, is found to posses very unique electronic properties. …”
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    Seeking Maxwell’s Demon in a non-reciprocal quantum ring
  11. 2531
    “…Fourier ring correlation (FRC) has recently gained popularity among fluorescence microscopists as a straightforward and objective method to measure the effective image resolution. …”
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    Fourier ring correlation simplifies image restoration in fluorescence microscopy
  12. 2532
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    Transient and intermediate carbocations in ruthenium tetroxide oxidation of saturated rings
  13. 2533
    por Su, Y., Chang, P., Lin, C., Helmy, A. S.
    Publicado 2019
    “…Experimental realization of CHPWs demonstrates propagation loss and mode area of 0.03 dB/μm and 0.002 μm(2), corresponding to the smallest combination among long-range plasmonic structures reported to date. CHPW ring resonators with 2.5-μm radius were realized with record Purcell factor compared with existing plasmonic and dielectric resonators of similar radii.…”
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    Record Purcell factors in ultracompact hybrid plasmonic ring resonators
  14. 2534
    por Das, Kunal K., Gajdacz, Miroslav
    Publicado 2019
    “…We present a model based on a ring-shaped lattice potential, which allows for both Abelian and non-Abelian constructs. …”
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    Synthetic Gauge Structures in Real Space in a Ring lattice
  15. 2535
    “…Histopathological examination revealed a poorly cohesive carcinoma that sparsely coexisted with signet-ring cell carcinoma cells with regional lymph node metastasis. …”
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    A Case of Gastric Amphicrine Signet-Ring Cell Carcinoma
  16. 2536
    “…A series of stiff stilbene macrocycles have been studied to investigate the possible impact of the macrocycle ring size on their photodynamic properties. The results show that reducing the ring size counteracts the photoisomerization ability of the macrocycles. …”
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    Effect of ring rize on photoisomerization properties of stiff stilbene macrocycles
  17. 2537
    “…A vacuum-sealed microelectromechanical silicon ring resonator is employed in this work, with relevance to the gyroscopic lateral modes of vibration. …”
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    Dynamic modulation of modal coupling in microelectromechanical gyroscopic ring resonators
  18. 2538
    “…Among them, 158 patients (Group A) in which an O-ring retractor device was used during surgery was compared with a control group of 154 patients (Group B) in which an O-ring retractor device was not used. …”
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    O-Ring Protector in Prevention of SSIs in Laparoscopic Colorectal Surgery
  19. 2539
    “…Double rings were associated with combinations of null and missense mutations, none of the latter found in the single ring patients. …”
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    Double Hyperautofluorescent Rings in Patients with USH2A-Retinopathy
  20. 2540
    “…Patient underwent total thyroidectomy after failure of the medical management that ended in first tracheal ring laceration. Tracheal laceration discovered intraoperatively and repaired with primary closure. …”
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    First tracheal ring fracture in a complex thyroid surgery
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