Results 61 to 70 of about 3,154,905 (317)

Set Propagation Techniques for Reachability Analysis

Annu. Rev. Control. Robotics Auton. Syst., 2021
Reachability analysis consists in computing the set of states that are reachable by a dynamical system from all initial states and for all admissible inputs and parameters. It is a fundamental problem motivated by many applications in formal verification,
M. Althoff, Goran Frehse, A. Girard
semanticscholar   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Estimating Ionospheric Phase Scintillation Indices in the Polar Region from 1 Hz GNSS Observations Using Machine Learning

Remote Sensing
Ionospheric scintillation represents a disturbance phenomenon induced by irregular electron density variations, predominantly occurring in equatorial, auroral, and polar regions, thereby posing significant threats to Global Navigation Satellite Systems ...
Zhuojun Han, Ruimin Jin, Longjiang Chen, Weimin Zhen, Huaiyun Peng, Huiyun Yang, Mingyue Gu, Xiang Cui, Guangwang Ji   +8 more
doaj   +1 more source

Winter thunderstorms in Kamchatka [PDF]

E3S Web of Conferences, 2019
Winter thunderstorms in Kamchatka are rare meteorological phenomena. To investigate the nature of this phenomenon, time variations of quasistatic electric field and meteorological quantities at «Paratunka» observatory, IKIR FEB RAS (φ = 52:97° N; λ = 158:
Smirnov Sergey, Mikhailov Yury, Mikhailova Galina, Kapustina Olga   +3 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Deciphering acoustic emission signals in drought stressed branches: the missing link between source and sensor [PDF]

, 2015
When drought occurs in plants, acoustic emission (AE) signals can be detected, but the actual causes of these signals are still unknown. By analyzing the waveforms of the measured signals, it should, however, be possible to trace the characteristics of ...
Hamstad, Marvin A, Sause, Markus GR, Steppe, Kathy, Vergeynst, Lidewei   +3 more
core   +3 more sources

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

Statistical Study of Ionospheric Equivalent Slab Thickness at Guam Magnetic Equatorial Location

Remote Sensing, 2021
The ionospheric equivalent slab thickness (τ) is defined as the ratio of the total electron content (TEC) to the F2-layer peak electron density (NmF2), and it is a significant parameter representative of the ionosphere.
Yuqiang Zhang, Zhensen Wu, Jian Feng, Tong Xu, Zhongxin Deng, Ming Ou, Wen Xiong, Weimin Zhen   +7 more
doaj   +1 more source

An Improved Split-Step Wavelet Transform Method for Anomalous Radio Wave Propagation Modelling [PDF]

, 2014
Anomalous tropospheric propagation caused by ducting phenomenon is a major problem in wireless communication. Thus, it is important to study the behavior of radio wave propagation in tropospheric ducts.
Iqbal, A., Jeoti, V.
core   +1 more source

On the propagation of semiclassical Wigner functions

, 2002
We establish the difference between the propagation of semiclassical Wigner functions and classical Liouville propagation. First we re-discuss the semiclassical limit for the propagator of Wigner functions, which on its own leads to their classical ...
A M Ozorio de Almeida, Berry M V, Berry M V, Berry M V, Marinov M S, Moyal J E, Ozorio de Almeida A M, Ozorio de Almeida A M, Ozorio de Almeida A M, P P de M Rios, Weyl H   +10 more
core   +1 more source