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  1. 461
    “…Medium-sized rings have much promise in medicinal chemistry, but are difficult to make using direct cyclisation methods. …”
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    A happy medium: the synthesis of medicinally important medium-sized rings via ring expansion
  2. 462
    “…The 3-month extended duration tenofovir ring was highly acceptable. Participants perceived the ring to be easy to use, comfortable and reported liking it more over time. …”
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    Acceptability of an extended duration vaginal ring for HIV prevention and interest in a multi-purpose ring
  3. 463
    por Bramham, P, Hübner, K
    Publicado 1972
    Materias: “…Accelerators and Storage Rings…”
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    Microwaves from distorted stacks, Run 158, 20 bunches, 22 GeV/c, Ring 1 + Ring 2, Run 159, 20 bunches, 22 GeV/c, Ring 1 + Ring 2
  4. 464
    “…Precursors of 3-pyridylnitrene and 2- and 4-pyrimidinylcarbenes all afford mixtures of 2- and 3-cyanopyrroles on flash vacuum thermolysis, but 3-cyanopyrroles are the first-formed products. 3-Quinolylnitrenes and 4-quinazolinylcarbenes similarly afford 3-cyanoindoles. 2-Pyrimidinylcarbenes rearrange to 3-pyridylnitrenes, but 4-pyrimidinylcarbenes and 4-quinazolinylcarbenes do not necessarily rearrange to the corresponding 3-pyridylnitrenes or 3-quinolylnitrenes. The ring contraction reactions are interpreted in terms of ring opening of either the nitrenes or the diazacycloheptatetraenes to nitrile ylides.…”
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    3-Pyridylnitrene, 2- and 4-pyrimidinylcarbenes, 3-quinolylnitrenes, and 4-quinazolinylcarbenes. Interconversion, ring expansion to diazacycloheptatetraenes, ring opening to nitrile ylides, and ring contraction to cyanopyrroles and cyanoindoles
  5. 465
    por Marsh, S J, Kapetanakos, C A
    Publicado 1988
    Materias: “…Accelerators and Storage Rings…”
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    Studies of the electron-ring dynamics in a modified betatron for large ring displacements from the minor axis
  6. 466
    por Keil, Eberhard
    Publicado 1972
    Materias: “…Accelerators and Storage Rings…”
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    Run 151, 22 GeV, 20 bunches, Ring 2: Betratron Amplitudes in Ring 2
  7. 467
    Materias: “…Accelerators and Storage Rings…”
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    Synchrotron Radiation Studies for a Ring-Ring LHeC Interaction Region and Long Straight Section
  8. 468
    por Bengtsson, Johan
    Publicado 1988
    Materias: “…Accelerators and Storage Rings…”
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    Non-linear transverse dynamics for storage rings with applications to the low-energy antiproton ring (LEAR) at CERN
  9. 469
    por Belver Aguilar, Carolina
    Publicado 2015
    Materias: “…Accelerators and Storage Rings…”
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    Development of Stripline Kickers for Low Emittance Rings: Application to the Beam Extraction Kicker for CLIC Damping Rings
  10. 470
    por Brüning, Oliver Sim
    Publicado 1998
    Materias: “…Accelerators and Storage Rings…”
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    Optics and Geometrical Acceptance in IR2 for Ring-1 and Ring-2 of LHC v5.0
  11. 471
    “…Our objective was to generate intuitive annuloplasty ring analyses for improved valve-in-ring transcatheter mitral valve replacement planning. …”
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    An analytical, mathematical annuloplasty ring curvature model for planning of valve-in-ring transcatheter mitral valve replacement
  12. 472
    “…In this study, we used ‘Yuluxiang’ × ‘Akituki’ 4-year-old seedling trees to study the effects of plant growth regulators, ring stripping, and ring cutting on the promotion of phase change and flowering to assist in shortening the breeding cycle. …”
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    Ring Stripping, Ring Cutting, and Growth Regulators Promote Phase Change and Early Flowering in Pear Seedlings
  13. 473
    Publicado 1985
    “…Immunoelectron microscopy with protein A gold has been used to determine the subcellular location of the ring-infected erythrocyte surface antigen (RESA) of Plasmodium falciparum. …”
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    Localization of the ring-infected erythrocyte surface antigen (RESA) of Plasmodium falciparum in merozoites and ring-infected erythrocytes
  14. 474
    “…[Image: see text] A convergent synthesis of a des-B-ring bryostatin analogue is described. This analogue was found to undergo an unexpected ring expansion of the bryolactone core to generate the corresponding 21-membered macrocycle. …”
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    Synthesis of a des-B-Ring Bryostatin Analogue Leads to an Unexpected Ring Expansion of the Bryolactone Core
  15. 475
    “…Quantitatively, the width of a tree ring is largely determined by the rate and duration of cell division by the vascular cambium. …”
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    Missing Rings in Pinus halepensis – The Missing Link to Relate the Tree-Ring Record to Extreme Climatic Events
  16. 476
    “…The literature review reported here includes another 37 patients with LyE and rings, for a total of 40 patients. Patients with LyE may present with esophageal rings and other findings. …”
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    Rings in the esophagus are not always eosinophilic esophagitis: Case series of ring forming lymphocytic esophagitis and review of the literature
  17. 477
    “…In cells, these RING domains are able to integrate into endogenous HOPS, showing that the VPS18 RING domain is required to recruit VPS41 to the core complex subunits. …”
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    VPS18 recruits VPS41 to the human HOPS complex via a RING–RING interaction
  18. 478
    por Makeyev, Oleksandr
    Publicado 2018
    “…Recently, a general approach to Laplacian estimation for an (n + 1)-polar electrode with n rings using the (4n + 1)-point method has been proposed and used to introduce novel multipolar and variable inter-ring distances electrode configurations. …”
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    Solving the general inter-ring distances optimization problem for concentric ring electrodes to improve Laplacian estimation
  19. 479
    por Amari, Ahmed, Mifdaoui, Ahlem
    Publicado 2018
    “…To limit the cabling complexity and the deployment costs of such a communication architecture, we specify a new Gigabit multiple-ring Ethernet network, called AeroRing, while meeting the avionics requirements. …”
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    Specification and Performance Indicators of AeroRing—A Multiple-Ring Ethernet Network for Avionics Embedded Systems
  20. 480
    “…With increasing ring-crossing number (c), knot theory predicts an exponential increase in the number of topologically different links of these interlocking structures, even for structures with the same ring number (n) and c. …”
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    Metal–peptide rings form highly entangled topologically inequivalent frameworks with the same ring- and crossing-numbers
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