Results 41 to 50 of about 7,925 (187)
Facile Bottom‐Up Assembly of Photonic Micropatterns via Surface‐Guided Colloidal Crystallization
Advanced Materials, Volume 38, Issue 7, 2 February 2026.High‐resolution photonic micropatterns with vivid structural colors are fabricated through bottom‐up assembly, guided by surface‐dependent regioselective heterogeneous nucleation and crystal growth of colloidal particles. Full‐spectrum color tunability is achieved by controlling particle size and interparticle attraction, while in situ color mixing is ...
Yongseok Jung +3 more
wiley +1 more source
Sequence‐Driven Modulation of the Multistage Self‐Assembly Process in Lamellin‐Type β‐Peptides
Aggregate, Volume 7, Issue 2, February 2026.Schematic representation of assembly formation with the five identified stages (I–V) based on representative TEM images: stage I: formation of oligomers, stage II: twisted strands, stage III: lamellae, stage IV: bundles, and stage V: macroscopic lamellar clusters.
Imola Cs. Szigyártó +7 more
wiley +1 more source
Journal of Geophysical Research: Space Physics, Volume 131, Issue 2, February 2026.Abstract The Laschamps geomagnetic excursion (≈41,000 years BP) was a period of significant weakening and incomplete reversal of the Earth's magnetic field. The weakening substantially reduced geomagnetic shielding against cosmic rays (CRs), which contribute to phenomena at Earth, such as cosmogenic isotope production, and atmospheric ionisation and ...
N. Larsen +4 more
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Polarimetric Observations of Spiral Galaxies
Publications of the Astronomical Society of the Pacific, 1967 The extragalactic systems NCC 3031, NCC 4594, NGC 5194, and NGC 5457 have been observed polarimetrically. Linear polarization between 0.1 and 1.0 percent was detected in the spiral arms of all four galaxies. The planes of vibration indicate that reflection as well as interstellar absorption of starlight by the internal dust clouds of the observed ...
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Very large spiral galaxies [PDF]
Monthly Notices of the Royal Astronomical Society, 1983 As a first step in the systematic study of large spirals, which may be useful in cosmological tests and studies of galaxy evolution, a catalog of the 107 largest known spiral galaxies is presented. Catalog galaxies have isophotal diameters greater than 90 kpc, assuming an H(zero) value of 50 km/sec per Mpc.
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Phase transition between atomic and molecular hydrogen in nearby spiral galaxies [PDF]
, 2014 A Tanaka +3 more
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Dense Molecular Gas Associated with the Circumnuclear Star‐forming Ring in the Barred Spiral Galaxy NGC 6951 [PDF]
, 1999 Kotaro Kohno +2 more
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Outskirts of spiral galaxies [PDF]
Proceedings of the International Astronomical Union, 2016 AbstractI present an overview of the recent star formation activity in the outer disks of spiral galaxies, from the observational standpoint, with emphasis on the gas content, the star formation law, the metallicity and the stellar populations.
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Monte Carlo Predictions of Far-Infrared Emission from Spiral Galaxies [PDF]
, 2000 S. Bianchi, J. I. Davies, P. B. Alton
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