A convoy of magnetic millirobots transports endoscopic instruments for minimally-invasive surgery

Posted by klaurent Berkeley

Kavli Affiliate: Felix Fischer | Summary:Small-scale robots offer significant potential in minimally-invasive medical procedures. Due to the nature of soft biological tissues, however, robots are exposed to complex environments with various challenges in locomotion, which is essential to overcome for useful medical tasks. A single mini-robot often provides insufficient force on slippery biological surfaces to […]


Continue.. A convoy of magnetic millirobots transports endoscopic instruments for minimally-invasive surgery

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: Spatial transcriptomics offers unique opportunities to define the spatial organization of tissues and organs, such as the mouse brain. We address a key bottleneck in the analysis of organ-scale spatial transcriptomic data […]


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Dopamine D1 receptor expression in prefrontal parvalbumin neurons influences distractibility across species

Posted by dbos Yale

Kavli Affiliate: Anirvan Nandy | Authors: Mary Kate P Joyce, Tsvetoslav G Ivanov, Fenna Krienen, Jude Mitchell, Shaojie Ma, Wataru Inoue, Anirvan P Nandy, Dibyadeep Datta, Alvaro Duque, Jon I Arellano, Rahul Gupta, Guillermo Gonzalez-Burgos, David A Lewis, Nenad Sestan, Steven A McCarroll, Julio C Martinez-Trujillo, Seán Froudist-Walsh and Amy FT Arnsten | Summary: Marmosets […]


Continue.. Dopamine D1 receptor expression in prefrontal parvalbumin neurons influences distractibility across species

Lysosome damage triggers acute formation of ER to lysosomes membrane tethers mediated by the bridge-like lipid transport protein VPS13C

Posted by dbos Yale

Kavli Affiliate: Pietro De Camilli and Shawn Ferguson | Authors: Xinbo Wang, Peng Xu, Amanda Bentley-DeSousa, William Hancock-Cerutti, Shujun Cai, Benjamin T Johnson, Francesca Tonelli, Lin Shao, Gabriel Talaia, Dario R Alessi, Shawn M Ferguson and Pietro De Camilli | Summary: Based on genetic studies, lysosome dysfunction is thought to play a pathogenetic role in […]


Continue.. Lysosome damage triggers acute formation of ER to lysosomes membrane tethers mediated by the bridge-like lipid transport protein VPS13C

Epitaxial high-K AlBN barrier GaN HEMTs

Posted by klaurent Cornell

Kavli Affiliate: Grace Xing | Summary:We report a polarization-induced 2D electron gas (2DEG) at an epitaxial AlBN/GaN heterojunction grown on a SiC substrate. Using this 2DEG in a long conducting channel, we realize ultra-thin barrier AlBN/GaN high electron mobility transistors that exhibit current densities of more than 0.25 A/mm, clean current saturation, a low pinch-off […]


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Spectroastrometry and Reverberation Mapping of Active Galactic Nuclei. II. Measuring Geometric Distances and Black Hole Masses of Four Nearby Quasars

Posted by klaurent Peking

Kavli Affiliate: Jinyi Shangguan | Summary:The geometric distances of active galactic nuclei (AGNs) are challenging to measure because of their exceptionally compact structure yet vast cosmic distances. A combination of spectroastrometry and reverberation mapping (SARM) of broad-line regions (BLRs) constitutes a novel means to probe the geometric distance of AGNs, which has recently become practically […]


Continue.. Spectroastrometry and Reverberation Mapping of Active Galactic Nuclei. II. Measuring Geometric Distances and Black Hole Masses of Four Nearby Quasars

Spectroastrometry and Reverberation Mapping of Active Galactic Nuclei. II. Measuring Geometric Distances and Black Hole Masses of Four Nearby Quasars

Posted by klaurent Peking

Kavli Affiliate: Luis C. Ho | First 5 Authors: , , , , | Summary: The geometric distances of active galactic nuclei (AGNs) are challenging to measure because of their exceptionally compact structure yet vast cosmic distances. A combination of spectroastrometry and reverberation mapping (SARM) of broad-line regions (BLRs) constitutes a novel means to probe […]


Continue.. Spectroastrometry and Reverberation Mapping of Active Galactic Nuclei. II. Measuring Geometric Distances and Black Hole Masses of Four Nearby Quasars

Choices Speak Louder than Questions

Posted by klaurent Stanford

Kavli Affiliate: Hsiao-Mei (Sherry) Cho| First 5 Authors: [#item_custom_name[1, [#item_custom_name[2, [#item_custom_name[3, [#item_custom_name[4, [#item_custom_name[5| Summary:Recent findings raise concerns about whether the evaluation of Multiple-Choice Question Answering (MCQA) accurately reflects the comprehension abilities of large language models. This paper explores the concept of choice sensitivity, which refers to the tendency for model decisions to be more influenced […]


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Growth and characterization of single crystal cubic TaN and hexagonal Ta$_2$N films on c-plane Sapphire

Posted by klaurent Cornell

Kavli Affiliate: Farhan Rana | Summary:Two single crystal phases of tantalum nitride were stabilized on c-plane sapphire using molecular beam epitaxy. The phases were identified to be $δ$-TaN with a rocksalt cubic structure and $γ$-Ta$_2$N with a hexagonal structure. Atomic force microscopy scans revealed smooth surfaces for both the films with root mean square roughnesses […]


Continue.. Growth and characterization of single crystal cubic TaN and hexagonal Ta$_2$N films on c-plane Sapphire