Results 81 to 90 of about 43,519 (315)

The Milky Way's bright satellites as an apparent failure of LCDM

, 2012
We use the Aquarius simulations to show that the most massive subhalos in galaxy-mass dark matter halos in LCDM are grossly inconsistent with the dynamics of the brightest Milky Way dwarf spheroidal galaxies.
Ando, Barkana, Barnes, Behroozi, Benson, Besla, Blanton, Bovill, Bovill, Bovill, Bovy, Boyarsky, Boylan-Kolchin, Boylan-Kolchin, Boylan-Kolchin, Boylan-Kolchin, Boylan-Kolchin, Bryan, Bullock, Busha, Busha, Conroy, Davé, De Lucia, Dehnen, Dekel, di Cintio, Diemand, Efstathiou, Einasto, Feng, Font, Gao, Gao, Gao, Gnedin, Gnedin, Gnedin, Gnedin, Governato, Gunn, Guo, Guo, Harris, Hayashi, Hernquist, Hoeft, James S. Bullock, Jardel, Kallivayalil, Kirby, Klypin, Klypin, Komatsu, Koposov, Koposov, Kravtsov, Kravtsov, Kravtsov, Kuhlen, Kuzio de Naray, Larson, Li, Li, Li, Loeb, Lovell, Ludlow, Lunnan, Macciò, Macciò, Madau, Madau, Manoj Kaplinghat, Martin, Mateo, McMillan, Merritt, Michael Boylan-Kolchin, Moore, Moster, Murray, Muñoz, Navarro, Navarro, Navarro, Neistein, Oh, Oh, Okamoto, Okamoto, Olsen, Papastergis, Parry, Peñarrubia, Piatek, Polisensky, Press, Rashkov, Read, Reid, Reines, Ricotti, Robertson, Sawala, Schechter, Shattow, Somerville, Spergel, Springel, Springel, Springel, Springel, Stanimirović, Stoehr, Strigari, Strigari, Strigari, Strigari, Tassis, Thomas, Thoul, Tikhonov, Tinker, Tollerud, Tollerud, Tremaine, van den Bosch, Wadepuhl, Walker, Walter, Watkins, White, Wolf, Xue, Yoshida   +135 more
core   +1 more source

Photothermal Hydrogel with Mn3O4 Nanoparticles Alleviates Intervertebral Disc Degeneration by Scavenging ROS and Regulating Extracellular Matrix Metabolism

Advanced Functional Materials, EarlyView.
The MPTT‐nanozyme‐hydrogel system (Mn3O4@ChS‐HA) provides a multifunctional therapeutic strategy for intervertebral disc degeneration (IVDD), effectively targeting oxidative stress and enhancing AF repair by restoring extracellular matrix (ECM) and redox homeostasis.
Yangyang Chen, Chan Xue, Feifei Ni, Binwu Hu, Miaoheng Yan, He Zhang, Yuxiang Hu, Xiaoyao Peng, Guangfang Li, Yu Han, Hongjian Liu, Zengwu Shao, Qin Wang, Yulong Wei   +13 more
wiley   +1 more source

The Milky Way’s Rowdy Neighbors: The Effects of the Large Magellanic Cloud and Sagittarius Dwarf on the Milky Way Disk

The Astrophysical Journal
The Milky Way (MW) is a barred spiral galaxy shaped by tidal interactions with its satellites. The Large Magellanic Cloud (LMC) and the Sagittarius dwarf galaxy (Sgr) are the dominant influences at the present day. This paper presents a suite of four 10 ^
Ioana A. Stelea, Jason A. S. Hunt, Kathryn V. Johnston   +2 more
doaj   +1 more source

A dynamical model of the local cosmic expansion

, 2014
We combine the equations of motion that govern the dynamics of galaxies in the local volume with Bayesian techniques in order to fit orbits to published distances and velocities of galaxies within $\sim 3$ Mpc. We find a Local Group (LG) mass $2.3\pm 0.7\
Ma, Yin-Zhe, McConnachie, Alan, Peñarrubia, Jorge, Walker, Matthew G.   +3 more
core   +1 more source

Intraoral Drug Delivery: Bridging the Gap Between Academic Research and Industrial Innovations

Advanced Functional Materials, EarlyView.
Intraoral drug delivery offers a promising route for systemic and localized therapies, yet challenges such as enzymatic degradation, limited permeability, and microbial interactions hinder efficacy. This figure highlights innovative strategies—mucoadhesive materials, enzyme inhibitors, and permeation enhancers—to overcome these barriers.
Soheil Haddadzadegan, Simona Summonte, Fabrizio Ricci, Matthias Sandmeier, Andreas Bernkop‐Schnürch   +4 more
wiley   +1 more source

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

Advanced 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, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

On the Corotation of Milky Way Satellites: LMC-mass Satellites Induce Apparent Motions in Outer Halo Tracers

The Astrophysical Journal
Understanding the physical mechanism behind the formation of a corotating thin plane of satellite galaxies, like the one observed around the Milky Way (MW), has been challenging.
Nicolás Garavito-Camargo, Adrian M. Price-Whelan, Jenna Samuel, Emily C. Cunningham, Ekta Patel, Andrew Wetzel, Kathryn V. Johnston, Arpit Arora, Robyn E. Sanderson, Lehman Garrison, Danny Horta   +10 more
doaj   +1 more source

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

Advanced 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, Zhelun Li, Wendong Gao, Yuqing Mu, Jiaying Liu, Yufeng Zhang, Xiaohan Mei, Jingjing Quan, Lan Xiao, Yin Xiao   +9 more
wiley   +1 more source

Mapping the Chemodynamics of the Galactic Disk Using the LAMOST and APOGEE Red Clump Stars

The Astrophysical Journal Supplement Series
A detailed measurement is made of the metallicity distributions, kinematics, and dynamics of the thin and thick disks across a large disk volume (5.0 ≤ R ≤ 15.0 kpc and ∣ Z ∣ ≤ 3.0 kpc) by using the LAMOST–APOGEE red clump stars.
Weixiang Sun, Han Shen, Biwei Jiang, Xiaowei Liu   +3 more
doaj   +1 more source

Deep Potential: Recovering the Gravitational Potential from a Snapshot of Phase Space

The Astrophysical Journal, 2023
One of the major goals of the field of Milky Way dynamics is to recover the gravitational potential field. Mapping the potential would allow us to determine the spatial distribution of matter—both baryonic and dark—throughout the galaxy.
Gregory M. Green, Yuan-Sen Ting, Harshil Kamdar   +2 more
doaj   +1 more source