Results 61 to 70 of about 4,196,526 (247)

Probing young massive clusters with laser guide star adaptive optics [PDF]

, 2009
We use laser guide star adaptive optics (LGS/AO) on the 10 m Keck II telescope to obtain high spatial resolution images of young massive clusters (YMCs) in NGC1569 and M82.
McCrady, Nate
core   +1 more source

RNAi in the Rhizarian Phytopathogen Plasmodiophora brassicae: The Causal Agent of Clubroot Disease in Cruciferous Crops

Advanced Science, EarlyView.
This study uncovers an unusual RNAi pathway in the rhizarian pathogen Plasmodiophora brassicae. In the absence of Dicer, a Drosha‐like RNase III protein supports the biogenesis of predominant 21‐nt small RNAs, and two Argonaute proteins mediate small RNA‐guided silencing.
Xiong Zhang, Yupo Wu, Jiachang Hou, Lixia Gao, Longqi Pan, Cuicui Shen, Chuanji Zhao, Feng Gao, Yi Zhang, Li Ren, Xiaoping Fang, Xiaoling Dun, Shengyi Liu, Lijiang Liu   +13 more
wiley   +1 more source

Young massive star clusters in nearby galaxies

, 1999
A detailed description is given of the data analysis leading to the discovery of young massive star clusters (YMCs) in a sample of 21 nearby galaxies.
S. S. Larsen
core   +1 more source

Dynamical Mass Estimates for Two Luminous Star Clusters in Galactic Merger Remnants [PDF]

, 2006
We present high-dispersion spectra of two extremely massive star clusters in galactic merger remnants, obtained using the UVES spectrograph mounted on the ESO Very Large Telescope.
Schweizer, F., P. Goudfrooij, Schweizer, F, Saglia, RP, Bastian, N., Kissler-Patig, M, Saglia, Roberto P., Zoccali, M., Goudfrooij, P., Kissler-Patig, M., Maraston, Claudia, Maraston, C, F. Schweizer, Maraston, C., R. P. Saglia, Bastian, NJ, N. Bastian, Goudfrooij, P, M. Kissler-Patig, Saglia, R., Kissler-Patig, Markus, M. Zoccali, Zoccali, M, Goudfrooij, Paul, Schweitzer, F., C. Maraston, Zoccali, Manuela   +26 more
core   +1 more source

Sustainable Materials Design With Multi‐Modal Artificial Intelligence

Advanced Science, EarlyView.
Critical mineral scarcity, high embodied carbon, and persistent pollution from materials processing intensify the need for sustainable materials design. This review frames the problem as multi‐objective optimization under heterogeneous, high‐dimensional evidence and highlights multi‐modal AI as an enabling pathway.
Tianyi Xu, Tianshuo Wei, Yan Ge, Bo Peng, Yue Li, Maolin Wang, Peng Wen, Chao Yang, Ye Wei   +8 more
wiley   +1 more source

Quantifying Systematic Age Discrepancies in Very Young Star Clusters

The Astrophysical Journal
We infer the ages of three young stellar clusters—NGC 2004, NGC 7419, and NGC 2100—using Stellar Ages, a statistical algorithm designed to infer stellar population properties from color–magnitude diagrams.
Joseph Guzman, Jeremiah W. Murphy, Emma Beasor, Julianne J. Dalcanton, Nathan Smith, Mojgan Aghakhanloo, Benjamin F. Williams, Andrés F. Barrientos   +7 more
doaj   +1 more source

Young massive star clusters as teraelectronvolt emitters: Constraints from H.E.S.S. and LHAASO

Astronomy & Astrophysics
Young massive star clusters (YMSCs) have been proposed as excellent candidates for the main sources of Galactic cosmic rays (CRs) up to the petaelectronvolt range.
Batzofin Rowan, Cristofari Pierre, Egberts Kathrin   +2 more
doaj   +1 more source

Integration of Reconfigurable p‐Bit and 1R Crossbar Array for Memristive Probabilistic Computing

Advanced Science, EarlyView.
A memristive probabilistic computing system is demonstrated by integrating stochastic p‐bits based on volatile memristors with a 1R crossbar array encoding interaction weights. The system performs weighted‐sum operations across the array and updates p‐bits iteratively.
Keunho Soh, Ji Eun Kim, Suk Yeop Chun, Su In Hwang, Byung Seok Kim, Young Jae Lee, Ho Won Jang, Jung Ho Yoon   +7 more
wiley   +1 more source

Stochastic Entanglement of Deterministic Origami Tentacles For Robust Robotic Grasping

Advanced Science, EarlyView.
This study introduces an origami tentacle gripper to robustly grasp objects‐in air, underwater, and even in orbital space‐by exploiting a synergy between local, deterministic deformation programming and global, stochastic entanglements. A single origami tentacle can be designed to coil with a simple tendon pull.
Alec Boron, Bokun Zheng, Ziyang Zhou, Noel Naughton, Suyi Li   +4 more
wiley   +1 more source

Polymer‐Grafted Cu(II) Metal–Organic Polyhedra as Scalable, Melt‐Processable Porous Materials

Advanced Science, EarlyView.
The use of a direct synthetic route to obtain polymer‐grafted Cu(II)‐based metal–organic polyhedra gives rise to a low‐cost and scalable cage. This material combines low‐temperature melting, achieving phase changes while preserving cage integrity, and high CO2 uptake exceeding 0.6 mmol g−1.
Alba Cortés‐Martínez, Francisco Sánchez‐Férez, José A. Suárez del Pino, Sergio Royuela, Félix Zamora, Daniel Maspoch, Arnau Carné‐Sánchez   +6 more
wiley   +1 more source