Results 81 to 90 of about 1,901,818 (345)

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Quantum state transfer through a spin chain in a multi-excitation subspace

, 2012
We investigate the quality of quantum state transfer through a uniformly coupled antiferromagnetic spin chain in a multi-excitation subspace. The fidelity of state transfer using multi-excitation channels is found to compare well with communication ...
A. Bayat, C. Allen Bishop, Rui-Song Ma, Yong-Jian Gu, Zhao-Ming Wang   +4 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Opposing effects of intrinsic conductance and correlated synaptic input on Vm-fluctuations during network activity

Frontiers in Computational Neuroscience, 2012
Neurons often receive massive concurrent bombardment of synaptic inhibition and excitation during functional network activity. This increases membrane conductance and causes fluctuations in membrane potential (Vm) and spike timing.
Jens eKolind, Jorn eHounsgaard, Rune W. Berg   +2 more
doaj   +1 more source

Highly indistinguishable single photons from incoherently and coherently excited GaAs quantum dots

, 2019
Semiconductor quantum dots are converging towards the demanding requirements of photonic quantum technologies. Among different systems, quantum dots with dimensions exceeding the free-exciton Bohr radius are appealing because of their high oscillator ...
da Silva, Saimon F. Covre, Huber, Daniel, Michler, Peter, Portalupi, Simone L., Rastelli, Armando, Reindl, Marcus, Schimpf, Christian, Trotta, Rinaldo, Weber, Jonas H.   +8 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Infantile Spasms in Pediatric Down Syndrome: Potential Mechanisms Driving Therapeutic Considerations

Children
Infantile spasms are common in Down Syndrome (DS), but the mechanisms by which DS predisposes to this devastating epilepsy syndrome are unclear.
Carl E. Stafstrom, Li-Rong Shao
doaj   +1 more source

The Excitation Spectrum of a Bose-Einstein Condensate

, 2001
We report the first measurement of the excitation spectrum and the static structure factor of a Bose-Einstein condensate. The excitation spectrum displays a linear phonon regime, as well as a parabolic single-particle regime.
A. Brunello, A. Griffin, A. J. Leggett, C. Raman, D. M. Stamper-Kurn, D. Pines, D. S. Jin, E. Zaremba, F. Zambelli, G. Baym, J. Steinhauer, J. Stenger, M. Kozuma, M. O. Mewes, M. R. Andrews, M. R. Andrews, N. Davidson, N. Katz, N. N. Bogoliubov, Ph. Nozieres, R. J. Donnelly, R. Ozeri, R. P. Feynman, S. Inouye, S. Stringari, T. Esslinger, Y. Castin   +26 more
core   +1 more source

Excitation Number: Characterizing Multiply Excited States

Journal of Chemical Theory and Computation, 2017
How many electrons are excited in an electronic transition? In this Letter, we introduce the excitation number η to answer this question when the initial and final states are each modeled by a single-determinant wave function. We show that calculated η values lie close to positive integers, leading to unambiguous assignments of the number of excited ...
Giuseppe M. J. Barca, Andrew T. B. Gilbert, Peter M. W. Gill   +2 more
openaire   +3 more sources

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source