Results 141 to 150 of about 30,171 (324)

Figuring Out Gas and Galaxies in Enzo (FOGGIE). VII. The (Dis)assembly of Stellar Halos

The Astrophysical Journal
Over the next decade, the astronomical community will be commissioning multiple wide-field observatories well suited for studying stellar halos in both integrated light and resolved stars. In preparation for this, we use five high-resolution cosmological
Anna C. Wright, Jason Tumlinson, Molly S. Peeples, Brian W. O’Shea, Cassandra Lochhaas, Lauren Corlies, Britton D. Smith, Nguyen Binh, Ramona Augustin, Raymond C. Simons   +9 more
doaj   +1 more source

The Role of Optical Centers in Neodymium‐Doped Calcium Fluoride: Optical Tagging and Nanothermometry in the Second Biological Window

Advanced Optical Materials, EarlyView.
Tuning excitation by only 6 nm unveils three distinct optical centres in CaF2:Nd3⁺,Y3⁺, each with unique spectral fingerprints. Some exhibit properties ideal for precise nanoscale temperature sensing. Abstract Nd3+ has been proposed for nanothermometry in biological media, as both its emission and excitation wavelengths fall within the regions of low ...
Pablo Camarero, Rosalía López‐Méndez, Diego Lecumberri Díez, Patricia Haro‐González, Eugenio Cantelar, Marta Quintanilla   +5 more
wiley   +1 more source

Chemical Diversity on Small Scales: Abundance Analysis of the Tucana V Ultrafaint Dwarf Galaxy

The Astrophysical Journal
The growing number of Milky Way satellites detected in recent years has introduced a new focus for stellar abundance analysis. Abundances of stars in satellites have been used to probe the nature of these systems and their chemical evolution.
Terese T. Hansen, Joshua D. Simon, Ting S. Li, Domani Sharkey, Alexander P. Ji, Ian B. Thompson, Henrique M. Reggiani, Jhon Yana Galarza   +7 more
doaj   +1 more source

On the age of field halo stars

EPJ Web of Conferences, 2012
A study of stellar ages for a sample from the Sloan Digital Sky Survey (SDSS) is presented. The results are consolidated with a set of globular clusters (GCs) and show that this stellar sample is composed by one dominant population of 10–12 Gyr.
Jofré P.
doaj   +1 more source

The Jeans modeling of the Milky Way galaxy: implications of the kinematics of the stellar halo [PDF]

, 2011
S. Samurović, A. Lalović
openalex   +1 more source

Near‐Infrared‐Driven Metal–Organic Frameworks‐Based Nanorobots for Controlled Photothermal‐Chemical Therapy Synergistic Induction of Cancer Cell Death

Advanced Robotics Research, EarlyView.
To achieve efficient cancer cell death, a bowl‐shaped PDA@UiO‐66@DOX nanorobot drug‐delivery nanoplatform was developed. Near‐infrared irradiation not only drives the nanorobot to exhibit self‐thermophoretic motion and elevates temperature but also triggers Doxorubicin (DOX) release via hyperthermia, enhancing cancer cells uptake of DOX and thereby ...
Tong Lin, Jie Yang, Yongcheng Li, Yuepeng Cai, Xiaosong Zhou, Ting Chen, Renfeng Dong   +6 more
wiley   +1 more source

StreamGen: Connecting Populations of Streams and Shells to Their Host Galaxies

The Astrophysical Journal
In this work, we study how the abundance and dynamics of populations of disrupting satellite galaxies change systematically as a function of host galaxy properties.
Adriana Dropulic, Nora Shipp, Stacy Kim, Zeineb Mezghanni, Lina Necib, Mariangela Lisanti   +5 more
doaj   +1 more source

Structural Characterization and AI‐Enhanced Modeling of a Broadly Neutralizing Camelid Antibody Against SARS‐CoV‐2 Variants

Advanced Therapeutics, EarlyView.
This study characterizes a camelid antibody (B10) with potent neutralizing activity against SARS‐CoV‐2 Wildtype and Omicron variants. Through binding assays, epitope mapping, pseudovirus neutralization, and AI‐driven modeling, the antibody is shown to target conserved RBD regions in a closed Spike conformation.
Katja Hanack, Urszula Orzeł, Anja Schlör, Sourabh Mehta, Anandi Krishnan, Slawomir Filipek, Rushika Patel, Madhvi Joshi, Markus Hoffmann, Stefan Pöhlmann, Chaitanya Joshi, Dorian Liepmann, Ramasamy Paulmurugan, Venkatesan Renugopalakrishnan   +13 more
wiley   +1 more source

Detection of the Actinide Th in an r-process-enhanced Star with Accretion Origin

The Astrophysical Journal
The thorium and six second-peak r -process element (56 ≤ Z ≤ 72) abundances are determined for the α -poor star LAMOST J1124+4535 based on a high-resolution spectrum obtained with the High Dispersion Spectrograph on the Subaru Telescope. The age of J1124+
Qianfan Xing, Gang Zhao, Wako Aoki, Haining Li, Jingkun Zhao, Tadafumi Matsuno, Takuma Suda   +6 more
doaj   +1 more source

Hemp Proteins Conjugated with Green Tea Polyphenol Extract Form De Novo Plant‐Sourced Emulsifiers Suitable for Nanodelivery Systems Bearing Lipophilic Psychopharmaceuticals

Advanced Therapeutics, EarlyView.
Green tea polyphenols, conjugated either covalently or non‐covalently to hemp protein, comprise an excellent stabilizing matrix for oxidatively‐sensitive small molecules. These nanoemulsions are highly stable to a variety of chemical and physical stressors, protecting the small molecule while allowing for easy uptake across cell membranes and rapid ...
William Charles Hosie, Abhinandan Banerjee, Mary Augustina Egbuta, Kasra Razmkhah, Behzad Bolandi, Khalilalrahman Dehvari, Anton Homon, Aleena Kappadakunnel, Jonathan J. Simone, John F. Trant   +9 more
wiley   +1 more source