Results 81 to 90 of about 574,820 (241)

Dust in stellar wind bow shocks [PDF]

, 1989
A number of high velocity O stars have associated parsec-sized structure visible in the IRAS infrared. They can most readily be explained as the dense shells of stellar wind bow shocks.
Vanburen, Dave
core  

Ultrasound‐Activated Ce(IV)‐Integrated Biomimetic Nanoplatform for Oxygenation‐Reinforced Gas‐Sonodynamic Ferroptosis and cGAS–STING‐Driven Antitumor Immunity

Advanced Science, EarlyView.
A Ce(IV)‐integrated biomimetic nanoplatform coordinates tumor oxygenation, ultrasound‐triggered carbon monoxide release, sonodynamic therapy, ferroptosis amplification, and cyclic GMP–AMP synthase (cGAS)–stimulator of interferon genes (STING) immune activation.
Mengli Ma, Yingying Wu, Yunjie Wang, Yang Li, Yijia Zhang, Zhibo Zhang, Jinzhi Peng, Xiangyu Wu, Yi Luo, Weijing Zhang, Xin Ye, Weisong Lai, Shengyu Wang, Dan Du, Wengang Li, Nan Zheng, Fanghong Luo, Ting Wu   +17 more
wiley   +1 more source

Mechanical Torque Disruption of Dust Grains Induced by Supernova Shock Waves

The Astrophysical Journal
The feedback from massive stars drives the evolution of interstellar dust grains by altering their physical properties via a number of radiative and mechanical processes.
Sergio Martínez-González
doaj   +1 more source

Dusty Common Envelope Evolution

Galaxies
We present the first hydrodynamical simulations of common envelope evolution that include the formation of dust and the effect of radiation pressure on dust grains.
Lionel Siess, Luis C. Bermúdez-Bustamante, Orsola De Marco, Daniel J. Price, Miguel González-Bolívar, Chunliang Mu, Mike Y. M. Lau, Ryosuke Hirai, Taïssa Danilovich   +8 more
doaj   +1 more source

Tumor‐Intrinsic HEXB Drives Endothelial‐To‐Mesenchymal Transition and Confers Resistance to Anti‐Angiogenic Therapy in Glioblastoma

Advanced Science, EarlyView.
This study elucidates how glioblastoma tumors develop resistance to anti‐VEGF therapy through endothelial‐to‐mesenchymal transition (Endo‐MT). The researchers identify a novel signaling pathway where tumor‐derived HEXB stabilizes HSP60 to drive this vascular reprogramming.
Tianqi Liu, Xin Chen, Tao Sun, Jianqi Wu, Haixu Yan, Xing Liu, Hongda Lin, Xiangyu Wang, Ziao Xiao, Yang Xu, Qiang Fu, Peng Cheng, Wen Cheng, Anhua Wu   +13 more
wiley   +1 more source

New Neutral–Neutral Pathways in the Chemistry of Silicon- and Sulfur-bearing Molecules in the Cold Interstellar Medium

The Astrophysical Journal
Silicon is the most abundant third-row element in space and plays a major role in interstellar dust as silicate particles. Furthermore, silicon is important for the formation of silicate dust in oxygen-rich AGB stars and in supernova remnants.
Samuel F. M. Costa, Márcio O. Alves, Sérgio Pilling, Jing Li, Breno R. L. Galvão   +4 more
doaj   +1 more source

Porcupine‐Quill‐Inspired Shape‐Morphing Biointerfaces Disassemble Biofilms

Advanced Science, EarlyView.
A porcupine‐spine‐inspired dynamic offensive bio‐interface is developed for active biofilm disassembly. By coupling electrically driven nano‐dagger penetration with light‐triggered ROS generation, the surface overcomes the passive limitations of conventional mechano‐bactericidal topographies, achieving near‐complete biofilm eradication, strong ...
Feng Qian, Muqiu Xia, Ziyu Wang, Xinyuan Jia, Jinke Yin, Mengyu Fu, Xue Zhang, Xiao‐Lei Shi, Shiqiang Chen, Ning Wang, Zhi‐Gang Chen   +10 more
wiley   +1 more source

Dust Clumping in Outer Protoplanetary Disks: The Interplay among Four Instabilities

The Astrophysical Journal Letters
Dust concentration in protoplanetary disks (PPDs) is the first step toward planetesimal formation, a crucial yet highly uncertain stage in planet formation.
Pinghui Huang, Xue-Ning Bai
doaj   +1 more source

VCP‐Regulated LMF2 Stabilizes the Cholesterol Biosynthesis Enzyme HMGCS1 to Drive Cancer Progression and Confer Capecitabine Resistance in Triple‐Negative Breast Cancer

Advanced Science, EarlyView.
LMF2 drives progression and capecitabine resistance in triple‐negative breast cancer (TNBC). Mechanistically, VCP prevents NBR1‐mediated autophagic degradation of LMF2, thereby stabilizing it. Stabilized LMF2 subsequently suppresses NDP52‐mediated autophagic degradation of HMGCS1, a rate‐limiting cholesterol biosynthesis enzyme.
Qian Zhao, Lisa Andriani, Yin‐Ling Zhang, Shao‐Ying Yang, Yun‐Xiao Ling, Min‐Ying Huang, Jia‐Yang Cai, Fang‐Lin Zhang, Xin Hu, A‐Yong Cao, Zhi‐Min Shao, Guang‐Yu Liu, Da‐Qiang Li   +12 more
wiley   +1 more source

Near-infrared [P II] and [Fe II] Emission-line Study of Supernova Remnants in the Magellanic Clouds

The Astronomical Journal
We report findings from near-infrared imaging observations of 17 young and middle-aged supernova remnants (SNRs) in the Magellanic Clouds to examine the impact of SNR shocks on dust destruction and the possible detection of supernova ejecta.
Rommy L. S. E. Aliste Castillo, Yong-Hyun Lee, Takuma Kokusho, Ho-Gyu Lee, Bon-Chul Koo, Hidehiro Kaneda, Takahiro Nagayama   +6 more
doaj   +1 more source