All Disciplines – Page 817 – Kavli Institute Pre-Print Publications

Phencyclidine and methamphetamine cause cognitive deficits by changing pyramidal neuron transmitter identity in the prefrontal cortex

Posted by klaurent June 17, 2022June 27, 2022UCSD / Salk

Kavli Affiliate: Nicholas Spitzer | Authors: Marta Pratelli, Arth Thaker, Huiquan Li, Swetha Godavarthi and Nicholas C. Spitzer | Summary: Decreased cognitive ability is a major consequence of exposure to drugs of abuse, but the underlying neuroplastic changes have been elusive. We show that both phencyclidine and methamphetamine cause a population of prelimbic pyramidal neurons […]

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Multimodal monitoring of human cortical organoids implanted in mice using transparent graphene microelectrodes reveal functional connection between organoid and mouse visual cortex

Posted by klaurent June 17, 2022June 27, 2022UCSD / Salk

Kavli Affiliate: Fred Gage | Authors: Madison Wilson, Martin Thunemann, Xin Liu, Yichen Lu, Francesca Puppo, Jason Adams, Jeong-Hoon Kim, Donald Pizzo, Srdjan Djurovic, Ole Andreassen, Abed Mansour, Fred H. Gage, Alysson R Muotri, Anna Devor and Duygu Kuzum | Summary: Human cortical organoids, three-dimensional neuronal cell cultures derived from human induced pluripotent stem cells, […]

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Sex-specific age-related changes in excitatory and inhibitory intra-cortical circuits in mouse primary auditory cortex

Posted by klaurent June 17, 2022June 27, 2022Hopkins

Kavli Affiliate: Patrick Kanold | Authors: Binghan Xue, Joseph P-Y Kao and Patrick O Kanold | Summary: A common impairment in aging is age-related hearing loss (presbycusis), which manifests as impaired spectrotemporal processing. Aging is accompanied by alteration in normal inhibitory (GABA) neurotransmission and changes in excitatory (NMDA and AMPA) synapses in the auditory cortex […]

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Solving Complex Nanostructures With Ptychographic Atomic Electron Tomography

Posted by klaurent June 17, 2022Berkeley

Kavli Affiliate: Alex Zettl | First 5 Authors: Philipp M Pelz, Sinead Griffin, Scott Stonemeyer, Derek Popple, Hannah Devyldere | Summary: Transmission electron microscopy (TEM) is a potent technique for the determination of three-dimensional atomic scale structure of samples in structural biology and materials science. In structural biology, three-dimensional structures of proteins are routinely determined […]

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The formation of low surface brightness galaxies in the IllustrisTNG simulation

Posted by klaurent June 17, 2022MIT

Kavli Affiliate: Mark Vogelsberger | First 5 Authors: Luis Enrique Pérez-Montaño, Vicente Rodriguez-Gomez, Bernardo Cervantes Sodi, Qirong Zhu, Annalisa Pillepich | Summary: We explore the nature of low surface brightness galaxies (LSBGs) in the hydrodynamic cosmological simulation TNG100 of the IllustrisTNG project, selecting a sample of LSBGs ($r$-band effective surface brightness $mu_r > 22.0$ mag […]

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ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions — XI. From inflow to infall in hub-filament systems

Posted by klaurent June 17, 2022Peking

Kavli Affiliate: Ke Wang | First 5 Authors: Jian-Wen Zhou, Tie Liu, Neal J. Evans II, Guido Garay, Paul F. Goldsmith | Summary: We investigate the presence of hub-filament systems in a large sample of 146 active proto-clusters, using H$^{13}$CO$^{+}$ J=1-0 molecular line data obtained from the ATOMS survey. We find that filaments are ubiquitous […]

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Self-Supervised Contrastive Pre-Training For Time Series via Time-Frequency Consistency

Posted by klaurent June 17, 2022June 27, 2022Berkeley

Kavli Affiliate: Xiang Zhang | First 5 Authors: Xiang Zhang, Ziyuan Zhao, Theodoros Tsiligkaridis, Marinka Zitnik, | Summary: Pre-training on time series poses a unique challenge due to the potential mismatch between pre-training and target domains, such as shifts in temporal dynamics, fast-evolving trends, and long-range and short cyclic effects, which can lead to poor […]

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Self-Supervised Contrastive Pre-Training For Time Series via Time-Frequency Consistency

Posted by klaurent June 17, 2022Berkeley

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The Atari Disk, a Metal-Poor Stellar Population in the Disk System of the Milky Way

Posted by klaurent June 16, 2022MIT

Kavli Affiliate: Anna Frebel | First 5 Authors: Mohammad K. Mardini, Anna Frebel, Anirudh Chiti, Yohai Meiron, Kaley V. Brauer | Summary: We have developed a chemo-dynamical approach to assign 36,010 metal-poor SkyMapper stars to various Galactic stellar populations. Using two independent techniques (velocity and action space behavior), $Gaia$ EDR3 astrometry, and photometric metallicities, we […]

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Adaptive Algorithm for Quantum Amplitude Estimation

Posted by klaurent June 16, 2022June 27, 2022Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Yunpeng Zhao, Haiyan Wang, Kuai Xu, Yue Wang, Ji Zhu | Summary: Quantum amplitude estimation is a key sub-routine of a number of quantum algorithms with various applications. We propose an adaptive algorithm for interval estimation of amplitudes. The quantum part of the algorithm is based only […]

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