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  1. 1841
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    Megaloblastic Anemia with Ring Sideroblasts is not Always Myelodysplastic Syndrome
  2. 1842
    “…[Image: see text] Donor–acceptor cyclopropanes with two geminal carboxylic esters are reacted with chalcogenyl chlorides and bromides to afford ring-opened products bearing the halogen atoms in the 1-position, adjacent to the donor, and the chalcogenyl residue in the 3-position next to the two acceptor groups. …”
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    Ring-Opening 1,3-Halochalcogenation of Cyclopropane Dicarboxylates
  3. 1843
    “…Utility is highlighted by application to preparation of the twelve-membered ring antibiotic recifeiolide(12,13) and the eighteen-membered ring Janus kinase 2/Fms-like tyrosine kinase-3 (JAK2/FLT3) inhibitor pacritinib(14,15) the Z isomer of which has lower potency than the E(16). …”
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    Kinetically E-Selective Macrocyclic Ring-Closing Metathesis
  4. 1844
    “…Five new pyran rings containing polyketides, penicipyrans A–E (1–5), together with the known pestapyrone A (6), were isolated from the saline soil-derived Penicillium raistrickii. …”
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    Pyran Rings Containing Polyketides from Penicillium raistrickii
  5. 1845
    por Xu, Ting, Lam, Miu Ling, Chen, Ting-Hsuan
    Publicado 2017
    “…When a sessile droplet evaporates, coffee-ring effect drives the suspended particulate matters to the droplet edge, eventually forming a ring-shaped deposition. …”
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    Discrete Element Model for Suppression of Coffee-Ring Effect
  6. 1846
    “…PURPOSE: To evaluate the efficacy and safety of Alahmady ring implantation in the management of neovascular glaucoma. …”
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    The efficacy of Alahmady ring implantation in the management of neovascular glaucoma
  7. 1847
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    Fused-Ring Oxazolopyrrolopyridopyrimidine Systems with Gram-Negative Activity
  8. 1848
    “…Two recent Phase III clinical trials to investigate an intravaginal ring for preventing HIV infection demonstrated that adherence to prescribed device use was a primary driver of efficacy. …”
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    An intravaginal ring for real-time evaluation of adherence to therapy
  9. 1849
    “…PURPOSE: To study long-term results of MyoRing treatment of keratoconus. METHODS: Retrospective study of MyoRing implantation into a corneal pocket for keratoconus. …”
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    Long-term results of MyoRing treatment of keratoconus()
  10. 1850
    “…BACKGROUND: Knowledge regarding the shape, size, and variability of the cricoid ring is important to properly choose the correct endotracheal tube (ETT) in the pediatric patient. …”
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    Cricoid ring: Shape, size, and variability in infants and children
  11. 1851
    “…BACKGROUND: Hyaline ring granuloma (HRG) is an uncommon histopathologic finding of unsolved etiopathogenesis. …”
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    Disseminated hyaline ring granuloma in the omentum of a dog
  12. 1852
    “…In this study, we characterized the gene encoding the enzyme that degrades the 2,3-methylenedioxy ring of berberine; this ring is important for its activity and stability. …”
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    Common origin of methylenedioxy ring degradation and demethylation in bacteria
  13. 1853
    por Ozates, Serdar, Teke, Mehmet Yasin
    Publicado 2017
    “…Ophthalmologic examination revealed MRNF lesions at inferior and superior poles of optic disc in the right eye. Furthermore, a ring-shaped MRNF lesion with feathery edges was observed at fovea. …”
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    Ring-shaped myelinated retinal nerve fibers at fovea
  14. 1854
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    A Review on Antibiotic Resistance: Alarm Bells are Ringing
  15. 1855
    “…The Z-ring plays a central role in bacterial division. …”
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    Z-ring Structure and Constriction Dynamics in E. coli
  16. 1856
    “…It is shown that the use of a simple flat-background model as in traditional integration programs causes systematic bias in the background determination at ice-ring resolutions, resulting in an overestimation of reflection intensities at the peaks of the ice rings and an underestimation of reflection intensities either side of the ice ring. …”
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    Background modelling of diffraction data in the presence of ice rings
  17. 1857
    “…Here we show the direct olefination of hydrazones via the intermediacy of three-membered ring species generated by addition of sulfoxonium ylides, departing from the general dogma of alkenes synthesis from carbonyls. …”
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    A three-membered ring approach to carbonyl olefination
  18. 1858
    “…The aim of this study was to quantify the thiocyanate-induced vasomotor response in aortic tissue and further to examine the potential of melatonin in affecting the generated vasoreactivity. Aortic rings of adult male normotensive Wistar rats were cut into 4-mm rings. …”
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    Melatonin attenuates thiocyanate-induced vasoconstriction in aortic rings
  19. 1859
    “…Herein, we present a new strategy for the preparation of a broad range of brassinosteroid biosynthetic precursors/metabolites differing by the ring A fragment. The protocol is based on the use of readily available phytohormones of this class bearing a 2α,3α-diol moiety (epibrassinolide or epicastasterone) as starting materials. …”
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    Synthesis of ergostane-type brassinosteroids with modifications in ring A
  20. 1860
    por Barash, Alexander, Chou, Timothy Y.
    Publicado 2017
    “…Infectious rings are distinguished from immunologic Wessely rings.…”
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    Moraxella atlantae keratitis presenting with an infectious ring ulcer
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