Results 121 to 130 of about 12,924,254 (307)

Simultaneous Observation of Ion-scale Wave Packets with Opposite Polarizations and Their Implications on the Generation Region in the Inner Heliosphere

The Astrophysical Journal
This paper reports a dispersion analysis of two wave packets simultaneously observed near the local proton gyrofrequency by the Parker Solar Probe. The observed wave event exhibits clear two-banded wave packets both propagating along the magnetic field ...
Sung Jun Noh, Xiangrong Fu, Misa Cowee, Lan K. Jian, Dae-Young Lee, Fan Guo, Ilya Kuzichev, Jungjoon Seough, Daniel B. Reisenfeld, John T. Steinberg, Ruth M. Skoug, Roberto Livi, Jia Huang   +12 more
doaj   +1 more source

Collective modes near a Pomeranchuk instability in two dimensions

Physical Review Research, 2019
We consider zero-sound collective excitations of a two-dimensional Fermi liquid. For each value of the angular momentum l, we study the evolution of longitudinal and transverse collective modes in the charge (c) and spin (s) channels with the Landau ...
Avraham Klein, Dmitrii L. Maslov, Lev P. Pitaevskii, Andrey V. Chubukov   +3 more
doaj   +1 more source

Phosphoinositides and inositol phosphates as molecular glues

FEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry, Alexander J. Cutright, Mong Na Claire Loi, Jessica Martin, Joseph W. Gilligan, Jakub N. Kubina, Michael J. Arambula, Susanna Tanada Palmu, Daniella Zhou, Raymond D. Blind   +9 more
wiley   +1 more source

Geodesic acoustic mode evolution in L-mode approaching the L–H transition on JET

, 2019
Geodesic acoustic modes (GAMs) may generate strong oscillations in the radial electric field and therefore are considered as a possible trigger mechanism for the L-H transition.
Solano, E R, Hillesheim, J C, Silva, C, Maggi, C F, Meneses, L, Subba, F., Hidalgo, C, Gil, L   +7 more
core   +1 more source

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

FEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara, Kinga Skoczek, Elzbieta Pyza, Milena Damulewicz   +3 more
wiley   +1 more source

Direct Observation of L‐X Mode of Auroral Kilometric Radiation in the Lower Latitude Magnetosphere by the Arase Satellite

Geophysical Research Letters
Previous studies have shown that auroral kilometric radiation (AKR) can play an important role in the magnetosphere‐atmosphere coupling and has the right‐handed extraordinary (R‐X), left‐handed ordinary (L‐O) and left‐handed extraordinary (L‐X) modes ...
Sai Zhang, Qinpei Yin, Hongming Yang, Fuliang Xiao, Qinghua Zhou, Qiwu Yang, Jiawen Tang, Zhoukun Deng, Yoshiya Kasahara, Yoshizumi Miyoshi, Atsushi Kumamoto, Yosuke Nakamura, Fuminori Tsuchiya, Iku Shinohara, Satoko Nakamura, Yasumasa Kasaba, Tomoaki Hori   +16 more
doaj   +1 more source

A Millimeter-Wave Broadband Multi-Mode Substrate-Integrated Gap Waveguide Traveling-Wave Antenna with Orbit Angular Momentum

Sensors
Orbit angular momentum (OAM) has been considered a new dimension for improving channel capacity in recent years. In this paper, a millimeter-wave broadband multi-mode waveguide traveling-wave antenna with OAM is proposed by innovatively utilizing the ...
Qiu-Hua Lin, Da Hou, Lihui Wang, Pengpeng Chen, Zhiyong Luo   +4 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

A lire, "Questions d'images", revue Mode de Recherche, IFM

, 2013
« Questions d’images » : le dernier numéro de la revue de l’IFM Mode de Recherche (n°20) propose d'explorer les propriétés fondamentales des images, au-delà de leurs déclinaisons multiples et de leur omniprésence envahissante.
Sophie Kurkdjian
core  

α‐Synuclein aggregation landscape from phase separation to neurotoxic intermediates

FEBS Letters, EarlyView.
Alpha‐synuclein aggregation in Parkinson's disease involves a complex landscape of transient intermediates, including oligomers, fibrils and liquid–liquid phase separation (LLPS). A view is emerging in which LLPS maturation into solid‐like condensates may contribute to the formation of neurotoxic species.
Silvia Arino, Giuliana Fusco, Alfonso De Simone   +2 more
wiley   +1 more source