Variable recruitment of distal tuft dendrites shapes new hippocampal place fields

Posted by dbos Columbia

Kavli Affiliate: Attila Losonczy and Franck Polleux | Authors: Justin K. O’Hare, Jamie Wang, Margjele D. Shala, Franck Polleux and Attila Losonczy | Summary: Hippocampal pyramidal neurons support episodic memory by integrating complementary information streams into new ‘place fields’. Distal tuft dendrites are widely thought to initiate place field formation by locally generating prolonged, globally-spreading […]


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A feedforward mechanism for human-like contour integration

Posted by dbos Harvard

Kavli Affiliate: George A. Alvarez | Authors: Nathan Wu, Baohua Zhou, Margarida Agrochao and Damon A Clark | Summary: Our intuition suggests that when a movie is played in reverse, our perception of motion in the reversed movie will be perfectly inverted compared to the original. This intuition is also reflected in many classical theoretical […]


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The SDSS-V Black Hole Mapper Reverberation Mapping Project: CIV BAL Acceleration in the Quasar SBS 1408+544

Posted by dbos Peking

Kavli Affiliate: Claudio Ricci | First 5 Authors: Robert Wheatley, Catherine J. Grier, Patrick B. Hall, W. N. Brandt, Jonah Lotz | Summary: We present the results of an investigation of a highly variable CIV broad absorption-line feature in the quasar SBS 1408+544 (z=2.337) that shows a significant shift in velocity over time. This source […]


Continue.. The SDSS-V Black Hole Mapper Reverberation Mapping Project: CIV BAL Acceleration in the Quasar SBS 1408+544

Warm Hawking Relics From Primordial Black Hole Domination

Posted by dbos Chicago

Kavli Affiliate: Gordan Z. Krnjaic | First 5 Authors: Christopher J. Shallue, Julian B. Muñoz, Gordan Z. Krnjaic, , | Summary: We study the cosmological impact of warm, dark-sector relic particles produced as Hawking radiation in a primordial-black-hole-dominated universe before big bang nucleosynthesis. If those dark-sector particles are stable, they would survive to the present […]


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DafnyBench: A Benchmark for Formal Software Verification

Posted by dbos MIT

Kavli Affiliate: Max Tegmark | First 5 Authors: Chloe Loughridge, Qinyi Sun, Seth Ahrenbach, Federico Cassano, Chuyue Sun | Summary: We introduce DafnyBench, the largest benchmark of its kind for training and evaluating machine learning systems for formal software verification. We test the ability of LLMs such as GPT-4 and Claude 3 to auto-generate enough […]


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AToM-Bot: Embodied Fulfillment of Unspoken Human Needs with Affective Theory of Mind

Posted by dbos Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Wei Ding, Fanhong Li, Ziteng Ji, Zhengrong Xue, Jia Liu | Summary: We propose AToM-Bot, a novel task generation and execution framework for proactive robot-human interaction, which leverages the human mental and physical state inference capabilities of the Vision Language Model (VLM) prompted by the Affective Theory […]


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Optical Investigations of Coherence and Relaxation Dynamics of a Thulium-doped Yttrium Gallium Garnet Crystal at sub-Kelvin Temperatures for Optical Quantum Memory

Posted by dbos Delft

Kavli Affiliate: Wolfgang Tittel | First 5 Authors: Antariksha Das, Mohsen Falamarzi Askarani, Jacob H. Davidson, Neil Sinclair, Joshua A. Slater | Summary: Rare-earth ion-doped crystals are of great interest for quantum memories, a central component in future quantum repeaters. To assess the promise of 1$%$ Tm$^{3+}$-doped yttrium gallium garnet (Tm:YGG), we report measurements of […]


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The Size-luminosity Relation of the AGN Torus Determined from the Comparison between Optical and Mid-infrared Variability

Posted by dbos Peking

Kavli Affiliate: Luis C. Ho | First 5 Authors: Minjin Kim, Suyeon Son, Luis C. Ho, , | Summary: We investigate the optical variability of low-redshift ($0.15< zleq0.4$) active galactic nuclei using the multi-epoch data from the Zwicky Transient Facility. We find that a damped random walk model well describes the ensemble structure function in […]


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Coherent Erbium Spin Defects in Colloidal Nanocrystal Hosts

Posted by dbos Berkeley

Kavli Affiliate: Paul Alivisatos | First 5 Authors: Joeson Wong, Mykyta Onizhuk, Jonah Nagura, Arashdeep S. Thind, Jasleen K. Bindra | Summary: We demonstrate nearly a microsecond of spin coherence in Er3+ ions doped in cerium dioxide nanocrystal hosts, despite a large gyromagnetic ratio and nanometric proximity of the spin defect to the nanocrystal surface. […]


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SSNVC: Single Stream Neural Video Compression with Implicit Temporal Information

Posted by dbos Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Feng Wang, Haihang Ruan, Zhihuang Xie, Ronggang Wang, Xiangyu Yue | Summary: Recently, Neural Video Compression (NVC) techniques have achieved remarkable performance, even surpassing the best traditional lossy video codec. However, most existing NVC methods heavily rely on transmitting Motion Vector (MV) to generate accurate contextual features, […]


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