Results 101 to 110 of about 29,619 (304)

Fermi Gamma-ray Haze via Dark Matter and Millisecond Pulsars

, 2011
We study possible astrophysical and dark matter (DM) explanations for the Fermi gamma-ray haze in the Milky Way halo. As representatives of various DM models, we consider DM particles annihilating into W+W-, b-bbar, and e+e-.
Atoyan, Bell, Bezanson, Binney, Bullock, Catena, Cholis, Cordes, Dmitry Malyshev, Dobler, Faucher-Giguère, Faucher-Giguère, Finkbeiner, Font, Hooper, Ilias Cholis, Joseph D. Gelfand, Jurić, Kargaltsev, Kobayashi, Kuijken, Lorimer, Manchester, Merritt, Porter, Profumo, Rando, Story, Su, Sullivan, Zeldovich, Zirakashvili, Zolotov   +32 more
core   +1 more source

Building up the Stellar Halo of the Milky Way

, 1998
We study numerical simulations of satellite galaxy disruption in a potential resembling that of the Milky Way. Our goal is to assess whether a merger origin for the stellar halo would leave observable fossil structure in the phase-space distribution of nearby stars.
Helmi, Amina, White, Simon D. M.
openaire   +2 more sources

Chemical fingerprinting of stellar populations in the Milky Way halo [PDF]

Proceedings of the International Astronomical Union, 2012
AbstractThe idea of “chemically fingerprinting“ stars to their birth systems has been discussed over the last decade. Here we present an investigation of the chemical abundance patterns of halo substructures using high-resolution spectra. In particular, we study the abundances of the α-like element titanium (Ti) and the s-process elements yttrium (Y ...
openaire   +2 more sources

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

Advanced 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, Maoze Wang, Jinling Huang, Yu Wang, Jing Zhao, Ran Wang, Zhi Ping Xu, Jianping Jiang, Lingxiao Zhang   +8 more
wiley   +1 more source

What Is Missing from the Local Stellar Halo?

The Astrophysical Journal
The Milky Way’s stellar halo, which extends to >100 kpc, encodes the evolutionary history of our Galaxy. However, most studies of the halo to date have been limited to within a few kiloparsecs of the Sun.
Katherine Sharpe, Rohan P. Naidu, Charlie Conroy   +2 more
doaj   +1 more source

The assembly of the halo system of the Milky Way as revealed by SDSS/SEGUE – The CEMP star connection

EPJ Web of Conferences, 2012
In recent years, massive new spectroscopic data sets, such as the over half million stellar spectra obtained during the course of SDSS (in particular its sub-survey SEGUE), have provided the quantitative detail required to formulate a coherent story of ...
Carollo D., Beers T.C.
doaj   +1 more source

Dual‐Nanoparticle Engineered Hydrogel Reverses Bicellular Oxidative Stress to Accelerate Diabetic Fracture Healing

Advanced Functional Materials, EarlyView.
CD105‐LNPs and PS‐LNPs can deliver α‐lipoic acid to bone marrow mesenchymal stem cells and bone marrow‐derived macrophages, reversing high glucose‐induced oxidative stress while enhancing osteogenesis and M2 polarization. Integrating both nanoparticles into glucose‐responsive hyaluronic acid hydrogel forms DLNPs@HA hydrogel, which accelerates diabetic ...
Yanzhi Zhao, Weixian Hu, Shengming Zhang, Yuheng Liao, Kangkang Zha, Chenyan Yu, Zhenhe Zhang, Wenqian Zhang, Bobin Mi, Faqi Cao, Guohui Liu, Wu Zhou   +11 more
wiley   +1 more source

Testing two alternatives theories to dark matter with the Milky Way dynamics

, 2015
Two alternative theories to dark matter are investigated by testing their ability to describe consistently the dynamics of the Milky Way. The first one refers to a modified gravity theory having a running gravitational constant and the second assumes ...
de Oliveira, P. L. C., Pacheco, J. A. de Freitas, Reinisch, G.   +2 more
core   +1 more source

Precision Photothermal Therapy at Mild Temperature: NIR‐II Imaging‐Guided, H2O2‐Responsive Stealth Nanobomb

Advanced Healthcare Materials, EarlyView.
The new generation nanobomb, termed the stealth nanobomb, is fabricated through self‐assembly using a polymeric carbon monoxide carrier (PLGA(CO)), small molecule near‐infrared‐active agents (2TT‐OC46B), and phospholipid polyethylene glycol (DSPE‐mPEG2000). The stealth nanobomb can circulate in the bloodstream and specifically target pancreatic cancer,
Gongcheng Ma, Qihang Ding, Yue Wang, Zhiwei Zhang, Yuding Zhang, Hui Shi, Lintao Cai, Ping Gong, Pengfei Zhang, Zhen Cheng, Jong Seung Kim   +10 more
wiley   +1 more source

TLR Agonist Nano Immune Therapy Clears Peritoneal and Systemic Ovarian Cancer

Advanced Healthcare Materials, Volume 14, Issue 7, March 14, 2025.
Intraperitoneal administration of immunogenic Toll‐like receptor agonist‐modified mesoporous silica nanoparticles leads to rapid internalization by ascites myeloid cells with trafficking to fat‐associated lymphoid clusters. Activation of myeloid cells counters suppressive immune mechanisms associated with peritoneal metastasis, leading to regional and ...
Ben Marwedel, Henning De May, Lauren Anderson, Lorél Y. Medina, Ellie Kennedy, Erica Flores, John O'Rourke, Marian Olewine, Irina Lagutina, Lillian Fitzpatrick, Fred Shultz, Donna F. Kusewitt, Eric Bartee, Sarah Adams, Achraf Noureddine, Rita E. Serda   +15 more
wiley   +1 more source