Results 161 to 170 of about 155,710 (341)

The APO-K2 Catalog. II. Accurate Stellar Ages for Red Giant Branch Stars across the Milky Way

open access: yesThe Astronomical Journal
We present stellar age determinations for 4661 red giant branch stars in the APO-K2 catalog, derived using mass estimates from K2 asteroseismology from the K2 Galactic Archaeology Program and elemental abundances from the Apache Point Galactic Evolution ...
Jack T. Warfield   +13 more
doaj   +1 more source

The Milky Way evolution under the RAVE perspective

open access: yesProceedings of the International Astronomical Union, 2015
Georges Kordopatis
semanticscholar   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

open access: yesAdvanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner   +9 more
wiley   +1 more source

Efficient and Accurate Force Replay in Cosmological-baryonic Simulations

open access: yesThe Astrophysical Journal
We construct time-evolving gravitational potential models for a Milky Way–mass galaxy from the FIRE-2 suite of cosmological-baryonic simulations using basis function expansions.
Arpit Arora   +10 more
doaj   +1 more source

Chemical evolution models for spiral disks: the Milky Way, M 31, and M 33 [PDF]

open access: bronze, 2010
M. M. Marcon-Uchida   +2 more
openalex   +1 more source

Bacteria‐Derived Extracellular Vesicle as A “Trojan Horse” for Selective M1 Macrophage‐Targeting in A Multi‐Cellular Entanglement Environment

open access: yesAdvanced Functional Materials, EarlyView.
The temporary transition of macrophages from a pro‐inflammatory phenotype of macrophages (M1) to an anti‐inflammatory phenotype of macrophages (M2) is crucial for tissue repair and regeneration processes. Bacterial outer membrane vesicles (OMVs) are utilized as a “trojan horse” for specific M1 macrophage‐targeting and anti‐inflammatory drug delivery ...
Donglin Cai   +9 more
wiley   +1 more source

A Perspective on the Milky Way Bulge Bar as Seen from the Neutron-capture Elements Cerium and Neodymium with APOGEE

open access: yesThe Astrophysical Journal
This study probes the chemical abundances of the neutron-capture elements cerium and neodymium in the inner Milky Way from an analysis of a sample of ∼2000 stars in the Galactic bulge bar spatially contained within ∣ X _Gal ∣ < 5 kpc, ∣ Y _Gal ∣ < 3.5 ...
J. V. Sales-Silva   +30 more
doaj   +1 more source

Biomimetic Nanomedicines Deliver Naringin for Enhanced Acute Liver Failure Therapy via Balanced Regulation of Hepatocyte Oxidative Stress and Kupffer Cell Inflammation

open access: yesAdvanced Functional Materials, EarlyView.
A biomimetic nanomedicine (RBLN) constructed by loading natural antioxidants to clinically used layered double hydroxide nanoparticles is surface coated with fresh or senescent red blood cell membrane for balanced drug delivery to hepatocytes and KCs, thereby simultaneously alleviating liver oxidant stress and inflammation for effective drug‐induced ...
Jiahui Shao   +8 more
wiley   +1 more source

Insights into the Galactic Bulge Chemodynamical Properties from Gaia Data Release 3

open access: yesThe Astrophysical Journal
We explore the chemodynamical properties of the Galaxy in the azimuthal velocity V _ϕ and metallicity [Fe/H] space using red giant stars from Gaia Data Release 3.
Xiaojie Liao   +6 more
doaj   +1 more source

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