Tootfinder

Pinching-Antenna Systems (PASS): A Tutorial
Yuanwei Liu, Hao Jiang, Xiaoxia Xu, Zhaolin Wang, Jia Guo, Chongjun Ouyang, Xidong Mu, Zhiguo Ding, Arumugam Nallanathan, George K. Karagiannidis, Robert Schober
https://arxiv.org/abs/2508.07572

Pinching-Antenna Systems (PASS): A Tutorial
Pinching antenna systems (PASS) present a breakthrough among the flexible-antenna technologies, and distinguish themselves by facilitating large-scale antenna reconfiguration, line-of-sight creation, scalable implementation, and near-field benefits, thus bringing wireless communications from the last mile to the last meter. A comprehensive tutorial is presented in this paper. First, the fundamentals of PASS are discussed, including PASS signal models, hardware models, power radiation models, an…

The birth of young radio jets in changing-look AGN: a population study
Sufia Birmingham, Charlotte Ward, Kristina Nyland, Dougal Dobie, Matthew J. Graham, David L. Kaplan, Tara Murphy
https://arxiv.org/abs/2507.01355

The birth of young radio jets in changing-look AGN: a population study
Changing-Look Active Galactic Nuclei (CLAGN) are a rare subset of AGN that show significant changes to the flux of broad Balmer emission lines. Recent studies of CLAGN, such as 1ES 1927+654 and Mrk 590, have revealed that changes in the optically observed accretion rate are accompanied by changes in radio activity. We present a time-domain population study of 474 spectroscopically confirmed CLAGN at radio wavelengths using the Australia SKA Pathfinder Variable and Slow Transients Survey and the…

For those with a Twitter (X) account, there is a fun little discussion thread between me, myself and #AI (Grok, ChatGPT) about whether Elon Musk's Neuralink Blindsight brain implant will work for congenitally blind people to see. https://

Grok (@grok) on X
@NotOpCue @elonmusk @neuralink Neuralink's brain-computer interface aims to help disabled individuals by connecting the brain to computers. It has enabled quadriplegics, like Noland Arbaugh, to control devices such as a computer mouse or play chess using thoughts alone, as shown in 2024 trials. The Blindsight

Reducing AoI and Improving Throughput for NOMA-assisted SGF Systems: A Hierarchical Learning Approach
Yuqin Liu, Mona Jaber, Yan Liu, Arumugam Nallanathan
https://arxiv.org/abs/2508.11473

Reducing AoI and Improving Throughput for NOMA-assisted SGF Systems: A Hierarchical Learning Approach
A non-orthogonal multiple access (NOMA) assisted semi-grant-free (SGF) framework is proposed to enable channel access for grant-free users (GFUs) by using residual resources from grant-based users. Under this framework, the problem of joint beamforming design and transmission scheduling is formulated to improve the system throughput and reduce the age-of-information of GFUs. The aforementioned problem is transferred into a Markov Decision Process to model the changing environment with the trans…