Article
Multidisciplinary Sciences
Avinash Vicholous Dass, Thomas Georgelin, Frances Westall, Frederic Foucher, Paolo De Los Rios, Daniel Maria Busiello, Shiling Liang, Francesco Piazza
Summary: New microgrid recordings on the human hippocampal surface reveal that oscillations travel in reversing directions, with the route of travel related to behavior and topographic patterns of activity strength, suggesting directions may be biomarkers of hippocampal cognitive processes.
NATURE COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Davide Spalla, Alessandro Treves, Charlotte N. Boccara
Summary: An essential role of the hippocampal region is to integrate information to compute and update representations. Recent research has shown that neurons in the hippocampal region can conjunctively encode self-motion, position, and direction, potentially uncovering a general algorithm for updating spatial representations.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
J. Tyler Boyd-Meredith, Alex T. Piet, Emily Jane Dennis, Ahmed El Hady, Carlos D. Brody
Summary: In this study, a leaky accumulation model was used to predict rats' changes of mind during decision making in a dynamic environment. The results showed that the frontal orienting fields (FOF) encoded accumulated evidence throughout the decision formation process, allowing for rapid motor execution when it is time to act.
NATURE COMMUNICATIONS
(2022)
Review
Multidisciplinary Sciences
Gulistan Agirman, Kristie B. Yu, Elaine Y. Hsiao
Summary: The brain and gastrointestinal tract, as critical sensory organs, interact through immune cells along the gut-brain axis to regulate inflammatory responses and immune balance, affecting the physiological state of the body.
Article
Instruments & Instrumentation
D. L. Chesny, N. B. Orange, C. Dempsey
Summary: This paper introduces an algorithm for modulating the current through each coil to form a more mathematically pure spine axis along the entirety of the coil assembly. By solving an inverse problem, it is demonstrated that unique currents exist for creating an accurate spine axis in a 3D null topology.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2021)
Article
Astronomy & Astrophysics
Brent M. Randol
Summary: This article presents the mathematical derivation of a velocity distribution function for two protons, showing a power law behavior with an exponential rollover at high speeds, potentially explaining observations of suprathermal ions in the solar wind. The solution remains valid for all times and background conditions, merging with the core distribution while conserving overall energy. Analytical approximations and explanations for the solution's phases are also discussed.
ASTROPHYSICAL JOURNAL
(2021)
Article
Multidisciplinary Sciences
Ghazi Khan, Hudaiba Soomro, Muhammad Usman Baig, Irfan Javed, Adam Zaman Chaudhry
Summary: This paper investigates the effect of repeated preparation of different states on a two-level system interacting with a harmonic oscillator environment. By calculating the decay rates, it is discovered that the qualitative behavior of the system undergoes a transition as the prepared state continuously moves from the excited state to a uniform superposition of the ground and excited states. These results are significant for quantum control of a two-level system interacting with its environment.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Jens J. Ringelberg, Erik J. M. Koenen, Benjamin Sauter, Anahita Aebli, Juliana G. Rando, Joao R. Iganci, Luciano P. de Queiroz, Daniel J. Murphy, Myriam Gaudeul, Anne Bruneau, Melissa Luckow, Gwilym P. Lewis, Joseph T. Miller, Marcelo F. Simon, Lucas S. B. Jordao, Matias Morales, C. Donovan Bailey, Madhugiri Nageswara-Rao, James A. Nicholls, Oriane Loiseau, R. Toby Pennington, Kyle G. Dexter, Niklaus E. Zimmermann, Colin E. Hughes
Summary: Early natural historians established environment and geography as key factors in determining the distribution of organisms, but the relative importance of these factors remains unresolved. By studying a plant clade across different continents, we found that the availability of water from deserts to rainforests dictates the turnover of lineages within continents. We also discovered that speciation occurs mostly within specific precipitation niches and that lineage turnover coincides with isohyets of precipitation, suggesting universal processes in evolution and dispersal.
Article
Chemistry, Physical
Shuai Gao, Qinkai Han, Xuening Zhang, Paolo Pennacchi, Fulei Chu
Summary: In this study, a ultra-high-speed hybrid ceramic rolling element triboelectric bearing (US-HCTEB) was developed to monitor the real-time dynamic behavior and stability of bearing operation. The US-HCTEB showed superiority and reliability in durability tests and ultra-high rotating speed tests. The output performance of the US-HCTEB was evaluated under variable working conditions and structural optimization, with dry contact lubrication and low humidity found to be beneficial. An extremely fast acceleration and deceleration test program was conducted to evaluate the performance of the US-HCTEB under complex nonstationary conditions. The results demonstrated that the proposed US-HCTEB achieved high-resolution dynamic behavior identification and exhibited high reliability until bearing failure.
Article
Cell Biology
Xin Liu, Satoshi Terada, Mehrdad Ramezani, Jeong-Hoon Kim, Yichen Lu, Andres Grosmark, Attila Losonczy, Duygu Kuzum
Summary: The E-Cannula is a novel neurotechnology that allows simultaneous electrical recording and two-photon calcium imaging of the mouse hippocampus. The study demonstrates that sharp wave ripples exhibit distinct spatiotemporal wave patterns and are associated with specific CA1 cell assemblies.
Article
Astronomy & Astrophysics
Olga Khabarova, Joerg Buechner, Neeraj Jain, Timothy Sagitov, Helmi Malova, Roman Kislov
Summary: Current sheets (CSs) are important regions of magnetic reconnection and energy dissipation in astrophysical plasmas, and the currents in them can be carried by both electrons and ions. This study shows that electron-dominated CSs can form inside or nearby ion-dominated CSs in turbulent plasmas. By analyzing the electron-to-ion speed ratio, these electron-dominated CSs can be located in solar wind data with an ordinary spacecraft resolution. The study also reveals that electron-dominated CSs impact the surrounding plasma, as reflected in sharp changes of the electron-to-ion speed ratio.
ASTROPHYSICAL JOURNAL
(2022)
Article
Astronomy & Astrophysics
O. V. Agapitov, V. Krasnoselskikh, M. Balikhin, J. W. Bonnell, F. S. Mozer, L. Avanov
Summary: The evolution of plasma entropy and the redistribution of plasma energy at the collisionless plasma shock front were evaluated using high temporal resolution data from four Magnetospheric Multiscale spacecraft. Different populations of ions were observed near the shock front, and their moments were determined separately. It was found that the solar wind core population velocity slows down mainly in the ramp region, and the proton temperature peak in the foot region is an effect of relative motion of different ion populations. The ion entropy showed a significant increase across the shock, while the entropy of electrons did not show a significant change. Rating: 8/10.
ASTROPHYSICAL JOURNAL
(2023)
Article
Developmental Biology
George Trompoukis, Giota Tsotsokou, Andriana Koutsoumpa, Maria Tsolaki, Georgia Vryoni, Costas Papatheodoropoulos
Summary: The study found that there are significant changes in short-term neural information processing in the dorsal hippocampus of old rats, while the ventral hippocampus generally remains unchanged. The neural information processing capacity in old rats is reduced in frequency-dependent transient changes compared to young rats.
INTERNATIONAL JOURNAL OF DEVELOPMENTAL BIOLOGY
(2022)
Article
Physics, Fluids & Plasmas
V. Leshchenko, B. Smith, A. Camacho Garibay, P. Agostini, L. F. DiMauro, L. Fang
Summary: The resonance-absorption condition in laser-nanoplasma interactions is wavelength dependent. It is found that this condition is invalid in the middle-infrared spectral range but valid for visible and near-infrared wavelengths. Molecular dynamic simulations reveal that the transition in the resonance condition is caused by a decrease in electron scattering rate and an increase in cluster outer-ionization contribution. An expression for the nanoplasma resonance density is derived based on experimental results and simulations. These findings are significant for a wide range of plasma experiments and applications, particularly in the extension of laser-plasma interaction studies to longer wavelengths.
Article
Astronomy & Astrophysics
M. Oieroset, T. D. Phan, M. Oka, J. F. Drake, S. A. Fuselier, D. J. Gershman, K. Maheshwari, B. L. Giles, Q. Zhang, F. Guo, J. L. Burch, R. B. Torbert, R. J. Strangeway
Summary: This study investigates the scaling of electron bulk heating produced by reconnection in the low-plasma-beta and high-Alfven-speed regime of the Earth's magnetotail. The temperature change in the reconnection exhaust is found to be correlated with the inflow Alfven speed, and is linearly proportional to the inflowing magnetic energy per particle. The empirical relation derived from the data suggests that the electron temperature increase is on average 2% of the inflowing magnetic energy per particle.
ASTROPHYSICAL JOURNAL
(2023)
Article
Neurosciences
Timothy I. Michaels, Lauren L. Long, Ian H. Stevenson, James J. Chrobak, Chi-Ming A. Chen
EUROPEAN JOURNAL OF NEUROSCIENCE
(2018)
Article
Psychology, Clinical
Rachel P. So, Lawrence S. Kegeles, Xiangling Mao, Dikoma C. Shungu, Arielle D. Stanford, Chi-Ming A. Chen
JOURNAL OF CLINICAL AND EXPERIMENTAL NEUROPSYCHOLOGY
(2018)
Review
Neurosciences
James R. Hinman, Holger Dannenberg, Andrew S. Alexander, Michael E. Hasselmo
JOURNAL OF NEUROPHYSIOLOGY
(2018)
Article
Neurosciences
Ahmad F. Osman, Christopher M. Lee, Monty A. Escabi, Heather L. Read
JOURNAL OF NEUROSCIENCE
(2018)
Article
Multidisciplinary Sciences
James R. Hinman, G. William Chapman, Michael E. Hasselmo
NATURE COMMUNICATIONS
(2019)
Article
Biochemistry & Molecular Biology
Chen Chen, Heather L. Read, Monty A. Escabi
Article
Biochemistry & Molecular Biology
Mina Sadeghi, Xiu Zhai, Ian H. Stevenson, Monty A. Escabi
Article
Multidisciplinary Sciences
Andrew S. Alexander, Lucas C. Carstensen, James R. Hinman, Florian Raudies, G. William Chapman, Michael E. Hasselmo
Letter
Clinical Neurology
Stefan B. Rowny, Luke Kluisza, Joan Prudic, Monica T. Ly, Chi-Ming Chen, Lindsey Casal-Roscum
CLINICAL NEUROPHYSIOLOGY
(2020)
Article
Biochemical Research Methods
Fatemeh Khatami, Monty A. Escabi
PLOS COMPUTATIONAL BIOLOGY
(2020)
Article
Multidisciplinary Sciences
Xiu Zhai, Fatemeh Khatami, Mina Sadeghi, Fengrong He, Heather L. Read, Ian H. Stevenson, Monty A. Escabi
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2020)
Article
Pediatrics
Andrea Trubanova Wieckowski, Taralee Hamner, Sarah Nanovic, Katelynn S. Porto, Kirsty L. Coulter, Sherief Y. Eldeeb, Chi-Ming A. Chen, Deborah A. Fein, Marianne L. Barton, Lauren B. Adamson, Diana L. Robins
Summary: Early screening for ASD during well-child visits can lead to earlier diagnosis and intervention. Repeat screening improves sensitivity without significantly decreasing specificity.
JOURNAL OF PEDIATRICS
(2021)
Article
Behavioral Sciences
Andrea Trubanova Wieckowski, Rebecca P. Thomas, Chi-Ming A. Chen, Ashley Zitter, Deborah A. Fein, Marianne L. Barton, Lauren B. Adamson, Diana L. Robins
Summary: The study examined the impact of training on providers' surveillance rates and accuracy of ASD detection, finding that the Enhanced training did not significantly affect providers' endorsed ASD concerns or accuracy of concerns. The Control training group showed a reduction in indicating concerns after training. Future research should focus on whether providers who indicate specific concerns are more likely to accurately refer children for ASD evaluations.
JOURNAL OF DEVELOPMENTAL AND BEHAVIORAL PEDIATRICS
(2021)
Article
Clinical Neurology
Emily A. Farina, Michal Assaf, Silvia Corbera, Chi-Ming Chen
Summary: This study examined the relationship between motivational subtypes, social abilities, and social functioning in schizophrenia. The results showed that passive motivation was associated with social functioning, while active motivation was not. Neither passive nor active motivation predicted social functioning on self-report measures. Additionally, performance on tasks of social abilities did not predict motivation.
JOURNAL OF NERVOUS AND MENTAL DISEASE
(2022)
Article
Biochemical Research Methods
Fengrong He, Ian J. Stevenson, Monty Escabi
Summary: Theories of efficient coding propose that the auditory system is optimized for the statistical structure of natural sounds. This study examines the transformations of peripheral and mid-level auditory filters on the representation of natural sound spectra and modulation statistics. The findings suggest that the tuning characteristics of the peripheral and mid-level auditory system produce a whitened output representation that reduces redundancies and allows for a more efficient use of neural resources.
PLOS COMPUTATIONAL BIOLOGY
(2023)