Global well-posedness for radial extremal hypersurface equation in $left(1+3 right)$-dimensional Minkowski space-time in critical Sobolev space

Posted by klaurent UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Sheng Wang, Yi Zhou, , , | Summary: In this article, we prove the global well-posedness in the critical Sobolev space $H_{rad}^2left(mathbb{R}^2right) times H_{rad}^1 left(mathbb{R}^2right)$ for the radial time-like extremal hypersurface equation in $left(1+3right)$- dimensional Minkowski space-time. This is achieved by deriving a new div-curl type lemma […]


Continue.. Global well-posedness for radial extremal hypersurface equation in $left(1+3 right)$-dimensional Minkowski space-time in critical Sobolev space

The radio detection and accretion properties of the peculiar nuclear transient AT 2019avd

Posted by klaurent MIT

Kavli Affiliate: Dheeraj R. Pasham | First 5 Authors: Yanan Wang, Ranieri D. Baldi, Santiago del Palacio, Muryel Guolo, Xiaolong Yang | Summary: AT 2019avd is a nuclear transient detected from infrared to soft X-rays, though its nature is yet unclear. The source has shown two consecutive flaring episodes in the optical and the infrared […]


Continue.. The radio detection and accretion properties of the peculiar nuclear transient AT 2019avd

Target Selection and Sample Characterization for the DESI LOW-Z Secondary Target Program

Posted by klaurent Stanford

Kavli Affiliate: Risa H. Wechsler | First 5 Authors: Elise Darragh-Ford, John F. Wu, Yao-Yuan Mao, Risa H. Wechsler, Marla Geha | Summary: We introduce the DESI LOW-Z Secondary Target Survey, which combines the wide-area capabilities of the Dark Energy Spectroscopic Instrument (DESI) with an efficient, low-redshift target selection method. Our selection consists of a […]


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A Multiwavelength study of the ongoing Changing-look AGN AT2021fxu

Posted by klaurent MIT

Kavli Affiliate: Dheeraj Pasham | First 5 Authors: Yukta Ajay, Muryel Guolo, Dheeraj Pasham, , | Summary: We present multiwavelength analyses of an active optical transient AT2021fxu which shows the appearance of previously absent broad emission lines in a recent optical spectrum, suggesting a Changing-look (CL) Active Galactic Nucleus (AGN). During the spectral transition, the […]


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Novel Conservative Methods for Adaptive Force Softening in Collisionless and Multi-Species N-Body Simulations

Posted by klaurent Peking

Philip F. Hopkins, Ethan O. Nadler, Michael Y. Grudic, Xuejian Shen, Isabel Sands | Summary: [[{“value”:”Modeling self-gravity of collisionless fluids (e.g. ensembles of dark matter, stars, black holes, dust, planetary bodies) in simulations is challenging and requires some force softening. It is often desirable to allow softenings to evolve adaptively, in any high-dynamic range simulation, […]


Continue.. Novel Conservative Methods for Adaptive Force Softening in Collisionless and Multi-Species N-Body Simulations

Architectures for Multinode Superconducting Quantum Computers

Posted by klaurent Caltech

Kavli Affiliate: Andrei Faraon | First 5 Authors: James Ang, Gabriella Carini, Yanzhu Chen, Isaac Chuang, Michael Austin DeMarco | Summary: Many proposals to scale quantum technology rely on modular or distributed designs where individual quantum processors, called nodes, are linked together to form one large multinode quantum computer (MNQC). One scalable method to construct […]


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Upregulated extracellular matrix-related genes and impaired synaptic activity in dopaminergic and hippocampal neurons derived from Parkinson’s disease patients with PINK1 and PARK2 mutations

Posted by klaurent UCSD / Salk

Kavli Affiliate: Fred Gage | Authors: Utkarsh Tripathi, Idan Rosh, Ran Ben Ezer, Ritu Nayak, Ashwani Choudhary, Jose Djamus, Andreea Manole, Henry Houlden, Fred H. Gage and Shani Stern | Summary: Abstract Parkinson’s disease (PD) is the second most prevalent neurodegenerative disease. Primary symptoms of PD arise with the loss of dopaminergic (DA) neurons in […]


Continue.. Upregulated extracellular matrix-related genes and impaired synaptic activity in dopaminergic and hippocampal neurons derived from Parkinson’s disease patients with PINK1 and PARK2 mutations

Structured information extraction from complex scientific text with fine-tuned large language models

Posted by klaurent Berkeley

Kavli Affiliate: Kristin Persson | First 5 Authors: Alexander Dunn, John Dagdelen, Nicholas Walker, Sanghoon Lee, Andrew S. Rosen | Summary: Intelligently extracting and linking complex scientific information from unstructured text is a challenging endeavor particularly for those inexperienced with natural language processing. Here, we present a simple sequence-to-sequence approach to joint named entity recognition […]


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Two types of locus coeruleus norepinephrine neurons drive reinforcement learning

Posted by klaurent Hopkins

Kavli Affiliate: Jeremiah Cohen | Authors: Zhixiao Su and Jeremiah Y. Cohen | Summary: Abstract The cerebral cortex generates flexible behavior by learning. Reinforcement learning is thought to be driven by error signals in midbrain dopamine neurons. However, they project more densely to basal ganglia than cortex, leaving open the possibility of another source of […]


Continue.. Two types of locus coeruleus norepinephrine neurons drive reinforcement learning

Assessing the C/O Ratio Formation Diagnostic: A Potential Trend with Companion Mass

Posted by klaurent Stanford

Kavli Affiliate: Bruce Macintosh | First 5 Authors: Kielan K. W. Hoch, Quinn M. Konopacky, Christopher A. Theissen, Jean-Baptiste Ruffio, Travis S. Barman | Summary: The carbon-to-oxygen (C/O) ratio in an exoplanet atmosphere has been suggested as a potential diagnostic of planet formation. Now that a number of exoplanets have measured C/O ratios, it is […]


Continue.. Assessing the C/O Ratio Formation Diagnostic: A Potential Trend with Companion Mass