Results 101 to 110 of about 559,591 (386)

Understanding the spiral structure of the Milky Way using the local kinematic groups [PDF]

, 2011
We study the spiral arm influence on the solar neighbourhood stellar kinematics. As the nature of the Milky Way (MW) spiral arms is not completely determined, we study two models: the Tight-Winding Approximation (TWA) model, which represents a local ...
Antoja, T., Figueras, F., Moreno, E., Pichardo, B., Romero-Gómez, M., Valenzuela, O.   +5 more
core   +2 more sources

A guided map to the spiral arms in the galactic disk of the Milky Way [PDF]

, 2017
An up-to-date overview of the recent history is given, aiming is to present a helpful working guide to the literature and at the same time introduce key systems and observational results, starting from the Sun and going toward the Galactic Center and ...
J. Vallée
semanticscholar   +1 more source

Effect of Foot Orthoses on Midfoot Pain and the Volume of Bone Marrow Lesions in the Midfoot: A Randomized Mechanism of Action Study

Arthritis Care &Research, EarlyView.
Objective Foot orthoses are thought to improve pain by potentially modifying internal mechanical forces. To test this, we explored whether foot orthoses can modify patterns of bone marrow lesions (BMLs) in people with midfoot pain. Methods Forty‐two people were recruited with midfoot pain, and magnetic resonance imaging–confirmed midfoot BMLs ...
Jill Halstead, Anne‐Maree Keenan, Philip G. Conaghan, Dennis McGonagle, Anthony C. Redmond   +4 more
wiley   +1 more source

Can the Dynamo of Spiral-arm Galaxies Be Explained by Anisotropic Conductivity?

The Astrophysical Journal
The possibility of generating a magnetic field by a dynamo effect with anisotropic electrical conductivity rather than turbulent flow has been demonstrated theoretically and experimentally.
Paul Gomez, Franck Plunian, Thierry Alboussière   +2 more
doaj   +1 more source

The relation between magnetic and material arms in models for spiral galaxies

, 2013
Context. Observations of polarized radio emission show that large-scale (regular) magnetic fields in spiral galaxies are not axisymmetric, but generally stronger in interarm regions.
Arshakian, T. G., Beck, R., Krause, M., Moss, D., Sokoloff, D., Stepanov, R.   +5 more
core   +1 more source

Search for star cluster age gradients across spiral arms of three LEGUS disc galaxies [PDF]

, 2018
One of the main theories for explaining the formation of spiral arms in galaxies is the stationary density wave theory. This theory predicts the existence of an age gradient across the arms. We use the stellar cluster catalogues of the galaxies NGC 1566,
F. Shabani, E. Grebel, A. Pasquali, E. D’Onghia, J. Gallagher, A. Adamo, M. Messa, B. Elmegreen, C. Dobbs, D. Gouliermis, D. Gouliermis, D. Calzetti, K. Grasha, D. Elmegreen, M. Cignoni, M. Cignoni, Daniel A. Dale, A. Aloisi, L. J. Smith, M. Tosi, D. Thilker, J. Lee, J. Lee, E. Sabbi, Hwihyun Kim, A. Pellerin   +25 more
semanticscholar   +1 more source

Validation of the Pediatric Arthritis Ultrasound Scoring System for the Elbow, Wrist, and Finger Joints in Children with Juvenile Idiopathic Arthritis

Arthritis Care &Research, Accepted Article.
Objective We aimed to validate the Pediatric Arthritis Ultrasound Scoring System (PAUSS) for upper extremity joints in children with juvenile idiopathic arthritis (JIA). Methods Children with JIA were evaluated for elbow, wrist, or finger arthritis by clinical examination (CE) and musculoskeletal ultrasound (MSUS) with images scored according to the ...
Patricia Vega‐Fernandez, Pinar Ozge Avar‐Aydin, Kelly Rogers, Daniel J. Lovell, Jennifer Huggins, Alexei Grom, Hermine I. Brunner, Grant S. Schulert, Sheila T. Angeles‐Han, Mekibib Altaye, Amy Cassedy, Arthur B. Meyers, Tracy V. Ting   +12 more
wiley   +1 more source

Multiple Spiral Arms in Protoplanetary Disks: Linear Theory [PDF]

Astrophysical Journal, 2018
Recent observations of protoplanetary disks, as well as simulations of planet–disk interaction, have suggested that a single planet may excite multiple spiral arms in the disk, in contrast to the previous expectations based on linear theory (predicting a
Ryan Miranda, R. Rafikov
semanticscholar   +1 more source

Lipid Nanoparticles for the Delivery of CRISPR/Cas9 Machinery to Enable Site‐Specific Integration of CFTR and Mutation‐Agnostic Disease Rescue

Advanced Functional Materials, EarlyView.
Lipid nanoparticles (LNPs) are optimized to co‐deliver Cas9‐encoding messenger RNA (mRNA), a single guide RNA (sgRNA) targeting the endogenous cystic fibrosis transmembrane conductance regulator (CFTR) gene, and homologous linear double‐stranded donor DNA (ldsDNA) templates encoding CFTR.
Ruth A. Foley, Paul G. Ayoub, Vrishti Sinha, Colin Juett, Alicia Sanoyca, Emily C. Duggan, Lindsay E. Lathrop, Priyanka Bhatt, Kevin Coote, Beate Illek, Brigitte N. Gomperts, Donald B. Kohn, Steven J. Jonas   +12 more
wiley   +1 more source

The collective origin of spiral structures in disk galaxies

EPJ Web of Conferences, 2012
After almost fifty years the origin of spiral arms in disk galaxies remains one of the major unsolved problems in astrophysics. Recent attempts have indicated that substructures in the dark matter halos of galaxies could induce spiral patterns in disks ...
Hernquist L., Vogelsberger M., D’Onghia E.   +2 more
doaj   +1 more source