September 18, 2025 – Kavli Institute Pre-Print Publications

Methylphenidate-induced reductions in choice impulsivity are associated with alterations in cortico-striatal beta oscillations.

Posted by dbos September 18, 2025September 23, 2025This Week: Neuroscience, UCSD / Salk

Kavli Affiliate: Dhakshin Ramanathan | Authors: Jason Nan, Alyssa J Terry, Noelle Lee, Morteza Salimi, Reyana Menon, Sam A Barnes, Dhakshin S Ramanathan and Miranda Francoeur Koloski | Summary: Impulsive choice- preferring small, immediate rewards over larger, delayed reward- is a hallmark of many psychiatric disorders. Methylphenidate, a dopamine and noradrenaline transporter inhibitor, reduces impulsivity, […]

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Internal and external contexts drive distinct dynamics in shared action-encoding striatal neurons

Posted by dbos September 18, 2025September 23, 2025Columbia, This Week: Neuroscience

Kavli Affiliate: Rui Costa | Authors: Tanya Sippy, Jan L. Klee, Sulekh Fernando-Peiris, Sahil Suresh, Ines Rodrigues-Vaz, Rui M. Costa and Vivek R. Athalye | Summary: Animals can flexibly initiate actions guided by external cues or by internal drive. Disease states often disrupt cue-driven and self-paced actions in distinct ways, underscoring separable neural mechanisms. Such […]

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Dynamical Analysis of the HD 169142 Planet-Forming Disk: Twelve Years of High-Contrast Polarimetry

Posted by klaurent September 18, 2025September 22, 2025Peking, This Week: Astrophysics

Kavli Affiliate: Ruobing Dong | First 5 Authors: Miles Lucas, Miles Lucas, , , | Summary: We present a dynamical analysis of the HD 169142 planet-forming disk based on high-contrast polarimetric imaging over a twelve-year observational period, offering insights into its disk evolution and planet-disk interactions. This study explores the evolution of scattered-light features and […]

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THYME XIII: Two young Neptunes orbiting a 75-Myr star in the Alpha Persei Cluster

Posted by klaurent September 18, 2025September 22, 2025MIT, This Week: Astrophysics

Kavli Affiliate: Andrew M. Vanderburg | First 5 Authors: Anne Dattilo, Anne Dattilo, , , | Summary: Young planets with mass measurements are particularly valuable in studying atmospheric mass-loss processes, but these planets are rare and their masses difficult to measure due to stellar activity. We report the discovery of a planetary system around TOI-6109, […]

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Complete Sampling of the $uv$ Plane with Realistic Radio Arrays: Introducing the RULES Algorithm, with Application to 21 cm Foreground Wedge Removal

Posted by klaurent September 18, 2025September 22, 2025MIT, This Week: Astrophysics

Kavli Affiliate: Jacqueline Hewitt | First 5 Authors: Vincent MacKay, Vincent MacKay, , , | Summary: We introduce the Radio-array $uv$ Layout Engineering Strategy (RULES), an algorithm for designing radio arrays that achieve complete coverage of the $uv$ plane, defined as, at minimum, regular sampling at half the observing wavelength ($lambda$) along the $u$ and […]

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Allosteric Disordering of eIF2B Regulates the Integrated Stress Response

Posted by dbos September 18, 2025September 23, 2025This Week: Neuroscience, UCSF

Kavli Affiliate: Peter Walter | Authors: Udit Dalwadi, Advait Subramanian, Aniliese Deal, Julia Conrad, Meera Venkatesh, Morgane Boone, Pascal Egea, Lingjie He, Nimit Jain, John D Lee, Yuwei Liu, Lucas Reineke, Kazuki Saito, Nathaniel Talledge, Hannah Toutkoushian, Maxence Le Vasseur, Francesca Zappa, Raoul de Groot, Diego Acosta-Alvear, Christopher Arthur, Jodi Nunnari, Mauro Costa-Mattioli, James Crawford, […]

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Shedding Light on Dark Matter at the LHC with Machine Learning

Posted by klaurent September 18, 2025September 22, 2025Chicago, This Week: Astrophysics

Kavli Affiliate: Carlos E. M. Wagner | First 5 Authors: Ernesto Arganda, Ernesto Arganda, , , | Summary: We investigate a WIMP dark matter (DM) candidate in the form of a singlino-dominated lightest supersymmetric particle (LSP) within the $Z_3$-symmetric Next-to-Minimal Supersymmetric Standard Model. This framework gives rise to regions of parameter space where DM is […]

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A zero-dead-time strontium lattice clock with a stability at $10^-19$ level

Posted by klaurent September 18, 2025September 22, 2025Berkeley, This Week: Nanoscience

Kavli Affiliate: Xiang Zhang | First 5 Authors: Xiao-Yong Liu, Xiao-Yong Liu, , , | Summary: Optical atomic clocks play a crucial role in fundamental physics, relativistic geodesy, and the future redefinition of the SI second. Standard operation relies on cyclic interrogation sequences, which alternate between atomic interrogation and dead time used for state preparation […]

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LLM-OREF: An Open Relation Extraction Framework Based on Large Language Models

Posted by klaurent September 18, 2025September 22, 2025This Week: Theoretical Physics, UCAS

Kavli Affiliate: Long Zhang | First 5 Authors: Hongyao Tu, Hongyao Tu, , , | Summary: The goal of open relation extraction (OpenRE) is to develop an RE model that can generalize to new relations not encountered during training. Existing studies primarily formulate OpenRE as a clustering task. They first cluster all test instances based […]

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Quantum oscillations in two-dimensional hole gases with competing cyclotron and Zeeman energy

Posted by klaurent September 18, 2025September 22, 2025Delft, This Week: Nanoscience

Kavli Affiliate: Giordano Scappucci | First 5 Authors: Davide Costa, Davide Costa, , , | Summary: Evaluation of critical bandstructure and quantum transport parameters in two-dimensional systems is challenging when competition emerges among different energy scales shaping quantum oscillations in a magnetic field. Here we overcome this challenge in low-disorder strained germanium quantum wells by […]

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