Results 41 to 50 of about 1,004,561 (294)

Multifrequency VLBI Observations of the Broad Absorption Line Quasar J1020+4320: Recently Restarted Jet Activity?

, 2013
This paper reports very-long-baseline interferometry observations of the radio-loud broad absorption line (BAL) quasar J1020+4320 at 1.7, 2.3, 6.7, and 8.4 GHz using the Japanese VLBI network (JVN) and European VLBI network (EVN). The radio morphology is
Asada, Keiichi, Doi, Akihiro, Fujisawa, Kenta, Hayashi, Takayuki J., Honma, Mareki, Jike, Takaaki, Kimura, Kimihiro, Kobayashi, Hideyuki, Koyama, Shoko, Mochizuki, Nanako, Murata, Yasuhiro, Nagai, Hiroshi, Ogawa, Hideo, Oyama, Tomoaki, Shibata, Katsunori M., Sugiyama, Koichiro, Takeuchi, Hiroshi   +16 more
core   +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

Enhancement of Carrier Mobility in Multilayer InSe Transistors by van der Waals Integration

Nanomaterials
Two-dimensional material indium selenide (InSe) holds great promise for applications in electronics and optoelectronics by virtue of its fascinating properties. However, most multilayer InSe-based transistors suffer from extrinsic scattering effects from
Zhiwei Li, Jidong Liu, Haohui Ou, Yutao Hu, Jiaqi Zhu, Jiarui Huang, Haolin Liu, Yudi Tu, Dianyu Qi, Qiaoyan Hao, Wenjing Zhang   +10 more
doaj   +1 more source

Permittivity-Inspired Microwave Resonator-Based Biosensor Based on Integrated Passive Device Technology for Glucose Identification

Biosensors, 2021
In this study, we propose a high-performance resonator-based biosensor for mediator-free glucose identification. The biosensor is characterized by an air-bridge capacitor and fabricated via integrated passive device technology on gallium arsenide (GaAs ...
Wei Yue, Eun-Seong Kim, Bao-Hua Zhu, Jian Chen, Jun-Ge Liang, Nam-Young Kim   +5 more
doaj   +1 more source

Understanding Pound-Drever-Hall locking using voltage controlled radio-frequency oscillators: An undergraduate experiment

, 2011
We have developed a senior undergraduate experiment that illustrates frequency stabilization techniques using radio-frequency electronics. The primary objective is to frequency stabilize a voltage controlled oscillator to a cavity resonance at 800 MHz ...
Arfken G., Bechtell G., Beringer R., C. E. Liekhus-Schmaltz, Fox R. W., Ginzton E., Grover F., J. D. D. Martin, Pozar D., Terman F.   +9 more
core   +1 more source

A simultaneous search for prompt radio emission associated with the short GRB 170112A using the all-sky imaging capability of the OVRO-LWA [PDF]

, 2017
We have conducted the most sensitive low frequency (below 100 MHz) search to date for prompt, low-frequency radio emission associated with short-duration gamma-ray bursts (GRBs), using the Owens Valley Radio Observatory Long Wavelength Array (OVRO-LWA ...
Anderson, Marin M., Bourke, Stephen, Eastwood, Michael W., Greenhill, Lincoln J., Hallinan, Gregg, Kocz, Jonathon, Lazio, T. Joseph W., Monroe, Ryan M., Price, Danny C., Schinzel, Frank K., Vedantham, Harish K., Wang, Yuankun, Woody, David P.   +12 more
core   +3 more sources

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source

The coexistence of cognitive radio and radio astronomy [PDF]

, 2009
An increase of the efficiency of spectrum usage requires the development of new communication techniques. Cognitive radio may be one of those new technique, which uses unoccupied frequency bands for communications.
Baan, W.A., Bentum, M.J., Boonstra, A.J.
core   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

FEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman, Anna E. Lester, Brian D. Zoltowski   +2 more
wiley   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source