Mostrando 4,721 - 4,740 Resultados de 5,091 Para Buscar '"Spiral"', tiempo de consulta: 0.32s Limitar resultados
  1. 4721
    “…BACKGROUND: Nephaspis indus Gordon, 1996 was imported into Taiwan from Hawaii in 1990 as a biological control agent for the spiralling whitefly, Aleurodicus dispersus Russell, 1965 (Hemiptera: Aleyrodidae). …”
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  2. 4722
  3. 4723
    por Tremaine, Scott
    Publicado 2019
    “…Many exotic astrophysical phenomena arise within these clusters, including flares arising from the tidal disruption of stars that pass close to the black hole, gravitational-wave bursts from stars spiraling into the black hole, and mergers of binary black holes. …”
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  4. 4724
    “…Some pharmacological and chemical qualities of pherentasin, a vasoconstrictor substance procured from human hypertensive blood, were studied by a new assay method using the spirally cut rabbit aorta. Of a number of drugs tested, six metal-binding agents including hydralazine inactivated the active principle. …”
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  5. 4725
    “…Spiralling research costs combined with urgent pressures from the Coronavirus 2019 (COVID-19) pandemic and the consequences of climate disruption are forcing changes in drug discovery. …”
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  6. 4726
    por Jungck, John R, Cebeci, Metehan
    Publicado 2022
    “…Wenxiang diagrams illustrate protein helices as spirals on a plane and thus have the advantage over helical wheels of being planar graphs. …”
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  7. 4727
    “…A complex scalar field has recently been suggested to bind galaxies and flatten the rotation curves of spirals. Its cosmological behavior is thoroughly investigated here. …”
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  8. 4728
    “…However, deposit central areas presented semicrystalline micro/nanostructures in the form of in-plane terraces and spirals, which require a lower driving force of crystallization. …”
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  9. 4729
    “…In this paper we propose, and experimentally verify, that a modified guiding geometry consisting of a chain of ultra-thin conducting spirals allows guiding of electromagnetic waves with wavelengths that are many times (40+) longer than any characteristic dimension of the guide, enabling super-sub-wavelength guiding and localisation of electromagnetic energy.…”
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  10. 4730
    “…This was performed by placing two spirals following an angiography, which was revealing an active spreading of contrast at the right femoral circumflex ascending artery. …”
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  11. 4731
    “…In this way, the reader becomes acquainted with Cassinian ovals, Sturmian spirals, co-Lemniscates, the nodary and the undulary, Delaunay surfaces, and their generalizations. …”
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  12. 4732
    “…The COVID-19 pandemic has spiralled into mass stagnation of major laboratories around the globe and led to increased investment into remote systems for nanoparticle experiments. …”
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  13. 4733
    por Watson, Michael L.
    Publicado 1959
    “…Although crescents and spirals of ribonucleoprotein particles were often seen in the immediate vicinity of the outer nuclear membrane, direct association with the pore complex was not observed. …”
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  14. 4734
    “…Animal work has revealed an arrangement of spiraling connections between the midbrain and the striatum that subserves a mechanism by which dopamine can direct information flow from ventromedial to more dorsal regions in the striatum. …”
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  15. 4735
    “…Topping the list is the demand for innovative new medicines to treat a range of both infectious and non-communicable diseases, while containing spiraling healthcare costs. The challenge is particularly great in therapeutic areas where, despite significant medical need and economic impact, the technical challenges and commercial risk of development serve as disincentives to drug sponsors. …”
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  16. 4736
    por Wu, Di, Wu, Tiantian, Liu, Qun, Yang, Zhicong
    Publicado 2020
    “…Governments are under increased pressure to stop the outbreak from spiraling into a global health emergency. At this stage, preparedness, transparency, and sharing of information are crucial to risk assessments and beginning outbreak control activities. …”
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  17. 4737
    Publicado 2022
    “…It seems important to limit inflation expectations in order to prevent wage-price spirals. It also begs the question about how effective monetary policy is if primarily (imported) energy price inflation has to be fought. …”
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  18. 4738
    por Rolin, J P, Sanz, F, Schäfke, R
    Publicado 2005
    “…It is well known that the non-spiraling leaves of real analytic foliations of codimension 1 all belong to the same o-minimal structure. …”
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  19. 4739
    “…Surprisingly, we found that proteins of the kinesin-13 family form rings and spirals around microtubules. This is the first report of this type of oligomeric structure for any kinesin protein. …”
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  20. 4740
    por Osterhout, W. J. V.
    Publicado 1945
    “…In Spirogyra the chloroplast is a long, spirally coiled ribbon which may contract under natural conditions to a short nearly straight rod with a loss of volume. …”
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