Results 61 to 70 of about 8,690 (179)

The Flocculent Structure of the Inner Milky Way Disk

The Astronomical Journal
Observations of H i published in 1957 by Westerhout and Schmidt were presented as showing a global face-on view of the spiral structure in the Milky Way. Since then, many studies have attempted to improve on the early map, perhaps presupposing our Galaxy
Dana S. Balser, W. B. Burton
doaj   +1 more source

How do spiral arm contrasts relate to bars, disc breaks and other fundamental galaxy properties? [PDF]

, 2017
We investigate how the properties of spiral arms relate to other fundamental galaxy properties, including bars and disc breaks. We use previously published measurements of those properties, and our own measurements of arm and bar contrasts for a large ...
A. Bittner, D. Gadotti, B. Elmegreen, E. Athanassoula, D. Elmegreen, A. Bosma, J. B. E. S. Observatory, University Observatory Munich, Ibm Research Division, A. Univ., Vassar College   +10 more
semanticscholar   +1 more source

Substituent‐Based Modulation of Self‐Assembly and Immunogenicity of Amphipathic Peptides

Advanced Science, EarlyView.
This study systematically investigates how positional and subtle changes, such as substituents on the phenyl ring attached to short amphipathic peptides, influence their self‐assembly, fibril morphology, and immunogenic responses. ABSTRACT Self‐assembled peptide‐based biomaterials provide versatile platforms for biomedical uses, featuring customizable ...
Anirban Das, Ushasi Pramanik, Elise M. Brown, Chih‐Yun Liu, Huan Gong, Jonathan Fascetti, Mark Gibson, Samuel Stealey, Silviya P. Zustiak, Cory Berkland, Piyoosh Sharma, Meredith E. Jackrel, Mark A. White, Jai S. Rudra   +13 more
wiley   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Morphology and Kinematics of the Gas in M51: How Interaction with NGC 5195 Has Molded the Structure of Its Arms

The Astrophysical Journal
The Whirlpool Galaxy is a well-studied grand design galaxy with two major spiral arms, and a large satellite NGC 5195. The arms both show long uniform sections with perturbations (“kinks” or sharp turns) in specific regions.
Joan Font, John E. Beckman, Benoît Epinat, Clare L. Dobbs, Miguel Querejeta   +4 more
doaj   +1 more source

Dynamically Driven Evolution of the Interstellar Medium in M51 [PDF]

, 2009
Massive star formation occurs in giant molecular clouds (GMCs); an understanding of the evolution of GMCs is a prerequisite to develop theories of star formation and galaxy evolution. We report the highest-fidelity observations of the grand-design spiral
Bock, Douglas C.-J., Carpenter, John M., Corder, Stuartt A., Hawkins, David, Hodges, Mark, Kemball, Athol, Koda, Jin, La Vigne, Misty A., Lamb, James W., Patience, Jenny, Plambeck, Richard L., Potts, Ashley E., Pound, Marc W., Sargent, Anneila I., Sawada, Tsuyoshi, Scott, Stephen L., Scoville, Nick, Teuben, Peter, Voguel, Stuart N., White, Stephen M., Woody, David P., Wright, Melvyn C. H., Zauderer, B. Ashley   +22 more
core  

The evolution of interacting spiral galaxy NGC 5194 [PDF]

, 2015
NGC 5194 (M51a) is a grand-design spiral galaxy and undergoing interactions with its companion. Here, we focus on investigating main properties of its star formation history (SFH) by constructing a simple evolution model, which assumes that the disc ...
X. Kang, R. Chang, Fenghui Zhang, L. Cheng, Lang Wang   +4 more
semanticscholar   +1 more source

Characterisation of a Novel Jumbo Lytic Aeromonas dhakensis Bacteriophage P19 and Its Endolysin

Microbial Biotechnology, Volume 19, Issue 1, January 2026.
A jumbo, lytic myovirus phage P19 against multidrug‐resistant (MDR) Aeromonas dhakensis was isolated from river water. P19 demonstrated robust lytic activity, high thermal and pH stability (pH 6–10, up to 60°C), and no genes associated with lysogeny, virulence or antimicrobial resistance. ORF_358 of P19 encodes for T4‐type lysozyme.
Farhat Ansari, Vandan Nagar
wiley   +1 more source

The magnetic fields of large Virgo cluster spirals: Paper II [PDF]

, 2012
The Virgo cluster of galaxies provides excellent conditions for studying interactions of galaxies with the cluster environment. Both the high-velocity tidal interactions and effects of ram pressure stripping by the intracluster gas can be investigated in
Baars, Beck, Beck, Beck, Cayatte, Cayatte, Chemin, Chung, Chung, Chyży, Chyży, Chyży, Chyży, Condon, Crowl, Drzazga, Gioia, K. T. Chyży, Koopmann, M. Soida, M. Urbanik, M. Weżgowiec, Oosterloo, Otmianowska-Mazur, Paturel, Pfrommer, R. Beck, Roediger, Rudnick, Schulz, Soida, Soida, Taylor, Tschöke, Tüllmann, Urbanik, Veilleux, Vollmer, Vollmer, Vollmer, Vollmer, Vollmer, Weiler, Weżgowiec, Weżgowiec, Yoshida   +45 more
core   +2 more sources

Dynamic Chiral Plasmonic Systems‐Based on Spiropyran Derivatives and Gold Nanorods

Advanced Materials Interfaces, Volume 12, Issue 23, December 8, 2025.
Soft chiral plasmonic nanocomposites are prepared by embedding gold nanorods into spiropyran‐based supramolecular gels. The system self‐assembles into helical structures, enabling plasmonic circular dichroism. When illuminated with UV light spiropyran–merocyanine isomerization occurs, inducing reversible nanoscale reorganization and modulation of the ...
Ewelina Tomczyk, Maciej Bagiński, Dorota Szepke, Wiktor Lewandowski, Michał Wójcik   +4 more
wiley   +1 more source