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  1. 1621
    “…We review logarithmic spiral patterns that generate cone/anti-cone surfaces, and introduce spiral director fields that encode non-localized positive and negative Gaussian curvature on punctured discs, including spherical caps and spherical spindles. …”
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    Encoding Gaussian curvature in glassy and elastomeric liquid crystal solids
  2. 1622
    “…Our data show that S. thermophila very rapidly can change its morphology during swimming, resulting in cells appearing nearly linear, in cells possessing three different spiral forms, and in cells being linear at one end and spiral at the other end. …”
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    Motility and Ultrastructure of Spirochaeta thermophila
  3. 1623
    “…In this paper, we report on a novel sensor for the contactless monitoring of the respiration rate, made from multi-material fibers arranged in the form of spiral antenna (2.45 GHz central frequency). High flexibility of the used composite metal-glass-polymer fibers permits their integration into a cotton t-shirt without compromising comfort or restricting movement of the user. …”
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    Wearable Contactless Respiration Sensor Based on Multi-Material Fibers Integrated into Textile
  4. 1624
    “…Typical leaf arrangements in shoots of this genus are described as distichous or spiral. However, in the course of field research and screening of herbarium materials, we indisputably disproved the presence of distichous phyllotaxis in the species Epipactis purpurata Sm. and confirmed the spiral Fibonacci pattern as the dominant leaf arrangement. …”
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    Leaf arrangements are invalid in the taxonomy of orchid species
  5. 1625
    “…In a generic 2D setup we show that adipose tissue remodeling substantially affects the spiral wave dynamics resulting in complex arrhythmia and such arrhythmia can be initiated under high frequency pacing if the size of the remodeled tissue is sufficiently large. …”
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    Myocyte Remodeling Due to Fibro-Fatty Infiltrations Influences Arrhythmogenicity
  6. 1626
    por Dai, Lijuan, Shi, Gaofeng, Li, Yang, Zhao, Bo
    Publicado 2019
    “…This study aimed to evaluate the values of thoracic multi-slice spiral computed tomography (CT) in the diagnosis of incidental pulmonary thromboembolism (IPTE) in patients with malignant tumors. …”
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    Values of thoracic contrast-enhanced computed tomography in detecting incidental pulmonary thromboembolism in patients with malignant tumors
  7. 1627
    “…We show that five copies of λP bind at DnaB subunit interfaces and reconfigure the helicase into an open spiral conformation that is intermediate to previously observed closed ring and closed spiral forms; reconfiguration also produces openings large enough to admit ssDNA into the inner chamber. …”
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    Mechanisms of opening and closing of the bacterial replicative helicase
  8. 1628
    “…This study presented the analytical behaviour of circular CFST short columns with an external ring or spiral confinements which are subjected to axial loading. …”
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    Explicit Simulation of Circular CFST Stub Columns with External Steel Confinement under Axial Compression
  9. 1629
    “…Akin to other AAA proteins, Msp1 forms hexameric spirals that translocate substrates through a central pore. …”
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    Structure of the AAA protein Msp1 reveals mechanism of mislocalized membrane protein extraction
  10. 1630
    “…With the help of high-speed rotation of micro helical electrode and its spiral shape, the internal electrolyte can be stirred while the external jetting electrolyte can flow into the hole along the spiral groove to refresh the electrolyte effectively, thereby, improving the machining stability of EMM. …”
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    Investigation on the Electrochemical Micromachining of Micro Through-Hole by Using Micro Helical Electrode
  11. 1631
    “…In this paper, we explore fused deposition modelling (FDM) to print non-transparent and closed internal micro features of in-plane microchannels (i.e., linear, curved and spiral channel profiles) and varying cross-section microchannels in the build direction (i.e., helical microchannel). …”
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    Study of Microchannels Fabricated Using Desktop Fused Deposition Modeling Systems
  12. 1632
    “…EcLonA without a bound substrate adopts a hexameric open-spiral quaternary structure that might represent the resting state of the enzyme. …”
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    Cryo-EM structure of substrate-free E. coli Lon protease provides insights into the dynamics of Lon machinery
  13. 1633
    “…In this paper, the specimen of the variable-diameter section of the hollow axle is taken as the research object, and the generation mechanism of surface spiral mark defects and the formula of spiral mark depth of variable-diameter section in the TRSR (three-roll skew rolling) process with variable roll spacing are explored. …”
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    Forming Quality Research on the Variable-Diameter Section of the Hollow Axle in Three-Roll Skew Rolling
  14. 1634
    “…Histological analysis showed changes in the organ of Corti and spiral ganglion. CONCLUSION: Cisplatin causes changes in cochlear histology, such as the loss of the normal microcytoarchitecture of the organ of Corti, and reduction of neurons of the spiral ganglion with cell alterations, however, DNA damage was not detected.…”
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    Cisplatin effects on guinea pigs: cochlear histology and genotoxicity
  15. 1635
    “…DM chronic auditory complications may include spiral ganglion atrophy, degeneration of the vestibulocochlear nerve myelin sheath, reduction of the number of spiral lamina nerve fibers, and thickening of the capillary walls of the stria vascularis and small arteries. …”
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    Hearing loss prevalence in patients with diabetes mellitus type 1
  16. 1636
    “…This paper introduces a multiramp helical–conical beam that can produce a three-dimensional spiral light field in a tightly focused system. Using this spiral light beam and the two-photon direct writing technique, micro–nano structures with chiral characteristics in space can be directly written under a single exposure. …”
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    Fabrication of Chiral 3D Microstructure Using Tightly Focused Multiramp Helico-Conical Optical Beams
  17. 1637
    “…This paper focuses on using machine learning on small data to detect the placement of the spiral rack indicated by the end of the spiral rack, which is the most crucial factor in causing a product potentially to get stuck in vending machines during the dispensation. …”
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    A Real-Time Application for the Analysis of Multi-Purpose Vending Machines with Machine Learning
  18. 1638
    “…Here, we present an image quality comparison study, pooling clinical patient data from two centers: a new i4DCT and a conventional spiral 4D CT patient cohort. Methods: The i4DCT cohort comprises 129 and the conventional spiral 4D CT cohort 417 4D CT data sets of lung and liver tumor patients. …”
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    Clinical application of breathing-adapted 4D CT: image quality comparison to conventional 4D CT
  19. 1639
    “…BACKGROUND: Spiral cleavage is a feature of non-ecdysozoan protostomes, in which left-right reversal frequently evolved in gastropod molluscs. …”
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    Heterochirality results from reduction of maternal diaph expression in a terrestrial pulmonate snail
  20. 1640
    Publicado 2019
    “…A total of 10, 154 low-dose spiral CT screenings were performed, with a participation rate of 31.91%. …”
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    云南省昆明市城市居民肺癌筛查结果分析
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