Missing data approaches for longitudinal neuroimaging research: Examples from the Adolescent Brain and Cognitive Development (ABCD) Study

Posted by dbos UCSD / Salk

Kavli Affiliate: Wesley Thompson | Authors: Lin Li, Mohammadreza Bayat, Timothy Hayes, Wesley K. Thompson, Arianna Morgan Sandmark Gard and Anthony Steven Dick | Summary: This paper addresses the challenges of managing missing values within expansive longitudinal neuroimaging datasets, using the specific example of data derived from the Adolescent Brain and Cognitive Development ABCD study. […]


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HD 21520 b: a warm sub-Neptune transiting a bright G dwarf

Posted by dbos MIT

Kavli Affiliate: Avi Shporer | First 5 Authors: Molly Nies, Ismael Mireles, François Bouchy, Diana Dragomir, Belinda A. Nicholson | Summary: We report the discovery and validation of HD 21520 b, a transiting planet found with TESS and orbiting a bright G dwarf (V=9.2, $T_{eff} = 5871 pm 62$ K, $R_{star} = 1.04pm 0.02, R_{odot}$). […]


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The graphene squeeze-film microphone

Posted by dbos Delft

Kavli Affiliate: P. G. Steeneken | First 5 Authors: M. P. Abrahams, J. Martinez, P. G. Steeneken, G. J. Verbiest, | Summary: Most microphones operate by detecting the sound-pressure induced motion of a membrane. In contrast, here we introduce a microphone that operates by monitoring the sound-pressure-induced modulation of the compressibility of air. By driving […]


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Investigation of Q degradation in low-loss Si3N4 from heterogeneous laser integration

Posted by dbos UCSB

Kavli Affiliate: John E. Bowers | First 5 Authors: Joel Guo, Chao Xiang, Warren Jin, Jonathan Peters, Mingxiao Li | Summary: High-performance, high-volume-manufacturing Si3N4 photonics requires extremely low waveguide losses augmented with heterogeneously integrated lasers for applications beyond traditional markets of high-capacity interconnects. State-of-the-art quality factors (Q) over 200 million at 1550 nm have been […]


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Data-driven fine-grained region discovery in the mouse brain with transformers

Posted by dbos UCSF

Kavli Affiliate: Reza Abbasi Asl | Authors: Alex Jihun Lee, Shenqin Yao, Nicholas Lusk, Hongkui Zeng, Bosiljka Tasic and Reza Abbasi-Asl | Summary: Technologies such as spatial transcriptomics offer unique opportunities to define the spatial organization of the mouse brain. We developed an unsupervised training scheme and novel transformer-based deep learning architecture to detect spatial […]


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The polarization hierarchy for polynomial optimization over convex bodies, with applications to nonnegative matrix rank

Posted by dbos UCSB

Kavli Affiliate: David Gross | First 5 Authors: Martin Plávala, Laurens T. Ligthart, David Gross, , | Summary: We construct a convergent family of outer approximations for the problem of optimizing polynomial functions over convex bodies subject to polynomial constraints. This is achieved by generalizing the polarization hierarchy, which has previously been introduced for the […]


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LRM-Zero: Training Large Reconstruction Models with Synthesized Data

Posted by dbos UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Desai Xie, Sai Bi, Zhixin Shu, Kai Zhang, Zexiang Xu | Summary: We present LRM-Zero, a Large Reconstruction Model (LRM) trained entirely on synthesized 3D data, achieving high-quality sparse-view 3D reconstruction. The core of LRM-Zero is our procedural 3D dataset, Zeroverse, which is automatically synthesized from simple […]


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LRM-Zero: Training Large Reconstruction Models with Synthesized Data

Posted by dbos UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Desai Xie, Sai Bi, Zhixin Shu, Kai Zhang, Zexiang Xu | Summary: We present LRM-Zero, a Large Reconstruction Model (LRM) trained entirely on synthesized 3D data, achieving high-quality sparse-view 3D reconstruction. The core of LRM-Zero is our procedural 3D dataset, Zeroverse, which is automatically synthesized from simple […]


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Integrated Modeling, Verification, and Code Generation for Unmanned Aerial Systems

Posted by dbos UCAS

Kavli Affiliate: Long Zhang | First 5 Authors: Jianyu Zhang, Long Zhang, Yixuan Wu, Linru Ma, Feng Yang | Summary: Unmanned Aerial Systems (UAS) are currently widely used in safety-critical fields such as industrial production, military operations, and disaster relief. Due to the diversity and complexity of application scenarios, UAS have become increasingly intricate. The […]


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Joint Power Allocation and Beamforming Design for Active IRS-Aided Directional Modulation Secure Systems

Posted by Caltech

Kavli Affiliate: Wei Gao | First 5 Authors: Yifan Zhao, Xiaoyu Wang, Kaibo Zhou, Xuehui Wang, Yan Wang | Summary: Since the secrecy rate (SR) performance improvement obtained by secure directional modulation (DM) network is limited, an active intelligent reflective surface (IRS)-assisted DM network is considered to attain a high SR. To address the SR […]


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