Results 111 to 120 of about 4,005,529 (300)

Single-mode coherent synchrotron radiation instability

Physical Review Special Topics. Accelerators and Beams, 2003
The microwave instability driven by the coherent synchrotron radiation (CSR) has been previously studied [S. Heifets and G. V. Stupakov, Phys. Rev. ST Accel.
S. Heifets, G. Stupakov
doaj   +1 more source

Single Transverse Whispering-Gallery Mode AlGaInAs/InP Hexagonal Resonator Microlasers

IEEE Photonics Journal, 2011
AlGaInAs/InP hexagonal resonator microlasers with an output waveguide connected to one vertex of the hexagon are fabricated using standard photolithography and inductively coupled plasma (ICP) etching process.
J. D. Lin, Y. Z. Huang, Y. D. Yang, Q. F. Yao, X. M. Lv, J. L. Xiao, Y. Du   +6 more
doaj   +1 more source

Quantum phase properties of two-mode Jaynes-Cummings model for Schr\"odinger-cat states: interference and entanglement

, 2009
In this paper we investigate the quantum phase properties for the coherent superposition states (Schr\"odinger-cat states) for two-mode multiphoton Jaynes-Cummings model in the framework of the Pegg-Barnett formalism.
A.M. Hashim, Abdalla, Abdel-Aty, Ashraf, Banaszek, Barnett, Barnett, Barnett, Beck, Beck, Begie, Buck, Burne, Bužek, Cardimona, Cardimona, Cardimona, Dung, Eberly, Ekert, El-Orany, El-Orany, El-Orany, El-Orany, Faisal A.A. El-Orany, Fan, Fan, Gantsog, Gantsog, Garraway, Gerry, Gerry, Goy, Iqbal, Jaynes, Joshi, Kim, Kozhekin, Leibfried, Leibfried, Lo, Lutterbach, M.H. Mahran, M.R.B. Wahiddin, Mahmood, Meekhof, Meng, Meshede, Meystre, Monroe, Narozhny, Nogues, Pegg, Pegg, Pegg, Peng, Peřinová, Peřinová, Peřinová, Phoenix, Puri, Rempe, Rosenhouse-Dantsker, Schrödinger, Sharma, Sharma, Shore, Singh, Smithey, Smithey, Song, Vidiella-Barranco, Wallentowitz, Wheeler, Yoo, Yoo, Yurke, Zaheer, Zaheer   +78 more
core   +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

The revival-collapse phenomenon in the quadrature field components of the two-mode multiphoton Jaynes-Cummings model

, 2009
In this paper we consider a system consisting of a two-level atom in an excited state interacting with two modes of a radiation field prepared initially in $l$-photon coherent states.
Allen L, Alsing A, Ashraf N M, Barnett S M, Barnett S M, Braunstein S L, Cardimona D A, D’Ariano G, El-Orany F A A, El-Orany F A A, El-Orany F A A, El-Orany F A A, Faisal A A El-Orany, Gerry C C, Gou S-C, Iqbal M S, Jaynes E T, Leonhardt U, Mandel L, Napoli A, Narozhny N B, Rosenhouse-Dantsker A, Scully M O, Sharma M P, Sorensen A S Molmer K, Walker N G, Yoo H I   +26 more
core   +2 more sources

The role of histone modifications in transcription regulation upon DNA damage

FEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Mode Optimization and Polarization Control in VCSELs with Sub-Wavelength Gratings

IEEE Photonics Journal
We have demonstrated the integration of sub-wavelength gratings (SWG) into a 795 nm vertical cavity surface emitting laser (VCSEL) with inverse surface relief to achieve coordinated control of the mode and polarization. At a grating period of around 0.5 &
Yongli Wang, Chuanchuan Li, Yang Zhang, Jian Li, Xin Wei   +4 more
doaj   +1 more source

Integration of circadian and hypoxia signaling via non‐canonical heterodimerization

FEBS Letters, EarlyView.
CLOCK, BMAL1, and HIFs are basic helix‐loop‐helix and Per‐Arnt‐Sim domain (bHLH‐PAS) proteins, which function as transcription factors. bHLH‐PAS proteins are designated in two classes. Many class I proteins are regulated by environmental signals via their PAS domains, but such signals have not been identified for all.
Sicong Wang, Katja A. Lamia
wiley   +1 more source

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

FEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Normal-mode spectroscopy of a single bound atom-cavity system

, 2004
The energy-level structure of a single atom strongly coupled to the mode of a high-finesse optical cavity is investigated. The atom is stored in an intracavity dipole trap and cavity cooling is used to compensate for inevitable heating. Two well-resolved
G. Rempe, H. Mabuchi, I. Schuster, N. Syassen, P. Maunz, P. Meystre, P. W. H. Pinkse, T. Puppe   +7 more
core   +1 more source