June 25, 2026 – Kavli Institute Pre-Print Publications

Long-term memory performance optimization via Neural network-based curve fitting in Drosophila

Posted by dbos June 25, 2026July 13, 2026UCSD / Salk

Kavli Affiliate: Ann-Shyn Chiang | Authors: Yung-Ching Lu, Chih-Ying Chen, Ling-Hui Yen, Chi-Lien Yang, Ya-Ding Liu, Wen-Jun Chen, Kuan-Lin Feng, Ming-Chin Wu, Ann-Shyn Chiang, Da-Jeng Yao, Chih-Ming Ho, Shih-Hwa Chiou and Li-An Chu | Summary: Long-term memory (LTM) formation typically requires extensive training or highly salient experiences, limiting learning efficiency. Operant conditioning is generally thought […]

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Zinc coordination by the wheat rust effector AvrSr33 provides a structural scaffold required for immune recognition

Posted by dbos June 25, 2026July 13, 2026Rockefeller

Kavli Affiliate: Li Zhao | Authors: Zhao Li, Jian Chen, Emily M Cross, Megan A Outram, Daniel S Yu, Jana Sperschneider, Melania Figueroa, Peter N Dodds and Simon J Williams | Summary: Interactions between plants and pathogens drive long-term co-evolution through cycles of effector diversification and immune recognition. Effectors play central roles in this molecular […]

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Chemical Divergence and Water Depletion: Gas Properties of Evolved Upper Scorpius Disks Revealed by JWST/MIRI

Posted by klaurent June 25, 2026July 13, 2026Peking

Kavli Affiliate: Feng Long| Summary: Tracing the chemical evolution of protoplanetary disks over time requires observations of disks at different ages. However, most JWST/MIRI surveys published to date have targeted younger ($sim$1-3 Myr) rather than older systems. We present the results of a JWST/MIRI MRS survey of the inner regions of 10 protoplanetary disks (ages […]

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From Young to Older Disks: JWST/MIRI Evidence for Fading Molecular Emission and Hints for Elevated C/O in Upper Scorpius

Posted by klaurent June 25, 2026July 13, 2026Peking

Kavli Affiliate: Feng Long| Summary: We present JWST/MIRI spectroscopy of 14 disks in the older (~5-10 Myr) Upper Scorpius (USco) association and use slab of gas in local thermal equilibrium to infer basic gas properties. We find that half of these disks are molecular rich, with detections of H$_2$O, CO$_2$, HCN, C$_2$H$_2$, and H$_2$, while […]

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JWST Reveals Compact Nuclear Starbursts Masquerading as AGNs in Metal-Poor Dwarfs: Where Are the Accreting Intermediate-Mass Black Holes?

Posted by klaurent June 25, 2026July 13, 2026MIT

Kavli Affiliate: Michael McDonald | Summary:We present JWST/NIRSpec spectroscopy of the low-mass, metal-poor galaxy SDSS~J160135.95+311353.7 (J1601), selected for its extreme mid-infrared colors and compact nuclear emission, placing it within widely used WISE color diagnostics for active galactic nuclei (AGNs). Despite this selection, we find no evidence for coronal lines, X-ray emission, or variability typically associated […]

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SEEDZ: Rapid Galaxy Assembly as a Pathway to Supermassive Stars, Dense Stellar Environments and Massive Black Hole Seeds

Posted by klaurent June 25, 2026July 13, 2026Cambridge

Kavli Affiliate: Martin Haehnelt | Summary:We investigate the assembly history of early galaxies in the SEEDZ hydrodynamic simulations, to investigate the high inflow rates believed to be required for the formation of supermassive stars (SMSs), dense stellar clusters and subsequently heavy seed black holes. Using a heavy seed formation criteria of $>$1 M$_odot$ yr$^-1$ flowing […]

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From Holst to Carroll Gravity, a Hamiltonian point of view

Posted by klaurent June 25, 2026July 13, 2026MIT

Kavli Affiliate: J. S. Villasenor | Summary:The Carrollian regime of gravity provides a useful ultrarelativistic framework for studying asymptotically flat spacetimes, horizon dynamics, and condensed matter systems. In this paper, we present a comprehensive Hamiltonian analysis of the most general Carroll-invariant Lagrangian that can be derived from the Holst action. To guide the analysis, Cartan […]

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