Results 121 to 130 of about 584,793 (309)

Cascade‐Responsive MXene@Cu‐MOF Heterostructure Integrates Antioxidant Activity, Infection Control, and Vascularization for Tracheal Repair

Advanced Science, EarlyView.
A cascade‐responsive MXene@Cu‐MOF/GelMA hydrogel is engineered as a “skeleton–backpack” platform for extensive tracheal repair. The MXene framework scavenges postoperative ROS and converts NIR light into mild hyperthermia, while the Cu‐MOF component provides pH/NIR‐responsive Cu2+ dosing for infection control, angiogenesis, and chondrogenesis.
Liang Guo, Yingran Shen, Jiaoyu Yi, Juanjuan Li, Ziming Wang, Erji Gao, Siqiang Zheng, Zhe‐Sheng Chen, Bo Tao   +8 more
wiley   +1 more source

Star−Disk Collisions: Implications for Quasi-periodic Eruptions and Other Transients near Supermassive Black Holes

The Astrophysical Journal
We use Athena++ to study the hydrodynamics of repeated star−accretion disk collisions close to supermassive black holes, and we discuss their implications for the origin of quasi-periodic eruptions (QPEs) and other repeating nuclear transients.
Philippe Z. Yao, Eliot Quataert, Yan-Fei Jiang, Wenbin Lu, Christopher J. White   +4 more
doaj   +1 more source

A “Hot Spring” Mimetic Aerogel Loaded with Multiple Amino Acids Modulates the Chronic Inflammatory Microenvironment Through Metabolic Reprogramming

Advanced Science, EarlyView.
The SrCuSi4O₁₀ bioceramic particles mimic the effects of hot spring therapy by increasing the local wound temperature, which enhances the absorption of amino acids and stimulates cell metabolism. The amino acid uptake supports cellular glutathione redox reactions, helping to mitigate oxidative stress.
Bo Li, Dandan Jin, Fei Li, Jianliang Shen, Jiang Chang, Chen Yang, Shixuan Chen, Yi Zhang   +7 more
wiley   +1 more source

Plant‐Derived Melatonin Inhibits Bacterial Virulence via CpxA/R Two‐Component System

Advanced Science, EarlyView.
Plant‐derived melatonin is sensed by CpxAE48/T51, which inhibits the phosphorylation cascade transmission from CpxAH240 to CpxRD52, resulting in the inhibition of DNA‐binding capacity of CpxR and subsequent T3SS genes expression in Pst DC3000. ABSTRACT In defending against pathogens, plants deploy diverse secondary metabolites and signaling molecules ...
Jin‐Wei Wei, Wei Liu, Bili Cao, Dan Zhao, Chengqiang Wang, Xin Hou, Tangyuan Ning, Biao Gong   +7 more
wiley   +1 more source

Imaging of the Vega Debris System Using JWST/MIRI

The Astrophysical Journal
We present images of the Vega planetary debris disk obtained at 15.5, 23, and 25.5 μ m with the Mid-Infrared Instrument on JWST. The debris system is remarkably symmetric, smooth, and centered accurately on the star.
Kate Y. L. Su, András Gáspár, George H. Rieke, Renu Malhotra, Luca Matrá, Schuyler Grace Wolff, Jarron M. Leisenring, Charles Beichman, Marie Ygouf   +8 more
doaj   +1 more source

Soft Artificial Ciliary Brush with Integrated Haptic Feedback for Efficient Airway Mucus Cleaning

Advanced Intelligent Systems, EarlyView.
A fundamental mucus cleaning mechanism is reported, which utilizes both artificial cilia mechanical sweeping and suction‐based mucus cleaning. A novel haptic feedback interface for the artificial cilia provides touch feedback on tissue contact, enhancing operator control and safety.
Zhongming Lyu, Yusheng Wang, Ruijian Ge, Darren Wang, Matthew Bacchetta, Caitlin T. Demarest, Fabien Maldonado, Xiaoguang Dong   +7 more
wiley   +1 more source

Debris disks around M dwarfs: The Herschel DEBRIS survey

Astronomy & Astrophysics
The Herschel open-time key program Disc Emission via a Bias-free Reconnaissance in the Infrared and Sub-millimeter (DEBRIS) is an unbiased survey of the nearest ∼100 stars for each stellar type A-M observed with a uniform photometric sensitivity to search for cold debris disks around them.
J.-F. Lestrade, B. C. Matthews, G. M. Kennedy, B. Sibthorpe, M. C. Wyatt, M. Booth, J. S. Greaves, G. Duchêne, A. Moro-Martín, C. Jobic   +9 more
openaire   +4 more sources

Soil, competition, and niche shifts shape the floral mosaic of an annual plant diversity hotspot

American Journal of Botany, EarlyView.
Abstract Premise Plant species with affinity for harsh substrates often have well‐defined edaphic (soil) niches and are ideal for exploring questions of community assembly. Vertic clay soils are chemically and physically challenging to plant establishment and productivity, and annual plant communities associated with these soils of the San Joaquin ...
Emma R. Fryer, Ryan O'Dell, Dena L. Grossenbacher, Alyssa Shon, Skyler McKinnon, Nishanta Rajakaruna   +5 more
wiley   +1 more source

Sequencing Silicates in the Spitzer Infrared Spectrograph Debris Disk Catalog. I. Methodology for Unsupervised Clustering

The Astrophysical Journal Supplement Series
Debris disks, which consist of dust, planetesimals, planets, and gas, offer a unique window into the mineralogical composition of their parent bodies, especially during the critical phase of terrestrial planet formation spanning 10 yr to a few hundred ...
Cicero X. Lu, Tushar Mittal, Christine H. Chen, Alexis Y. Li, Kadin Worthen, B. A. Sargent, Carey M. Lisse, G. C. Sloan, Dean C. Hines, Dan M. Watson, Isabel Rebollido, Bin B. Ren, Joel D. Green   +12 more
doaj   +1 more source

Repeating Nuclear Transients From Repeating Partial Tidal Disruption Events

Astronomische Nachrichten, EarlyView.
ABSTRACT Extragalactic nuclear transients that exhibit repeating outbursts can be modeled as the repeated dynamical interaction between bound stars and supermassive black holes (SMBHs). A subset of these transients, with recurrence timescales of months‐to‐years, have been explained as accretion flares from the repeated tidal stripping of a star by an ...
Ananya Bandopadhyay, Eric R. Coughlin, Julia Fancher, C. J. Nixon, Dheeraj R. Pasham   +4 more
wiley   +1 more source