Results 41 to 50 of about 2,282,369 (288)

One-photon double ionization of helium: a heuristic formula for the cross section

open access: yes, 2011
Without a formal derivation, we propose a formula for the total and single-differential cross in the problem of one-photon double ionization of an atom.
Førre, Morten
core   +1 more source

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

open access: yesFEBS 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   +3 more
wiley   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Replay Attack Defense Scheme Based on Double Sequence Function [PDF]

open access: yesJisuanji gongcheng, 2020
To address the problem that Web application servers are vulnerable to replay attacks,this paper proposes a defense scheme based on double sequence function for Web servers.The sequence function and periodic function are used to generate the encryption ...
ZHAO Liang, LI Lei, LI Xiangli
doaj   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

open access: yesFEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang   +8 more
wiley   +1 more source

Evaluation of double locus (clfB and spa) sequence typing for studying molecular epidemiology of methicillin-resistant Staphylococcus aureus in Taiwan

open access: yesJournal of Microbiology, Immunology and Infection, 2017
Background: Pulsed-field gel electrophoresis (PFGE) is the “gold standard” for epidemiological investigation of methicillin-resistant Staphylococcus aureus (MRSA), but several DNA sequence-based methods have been developed in MRSA typing because of the ...
Chen-Cheng Huang   +7 more
doaj   +1 more source

Theory and applications of supercycled symmetry-based recoupling sequences in solid-state NMR

open access: yes, 2006
We present the theoretical principles of supercycled symmetry-based recoupling sequences in solid-state magic-angle-spinning NMR. We discuss the construction procedure of the SR26 pulse sequence, which is a particularly robust sequence for double-quantum
Carravetta, Marina   +4 more
core   +1 more source

Unavoidable Parallel Minors of 4-Connected Graphs [PDF]

open access: yes, 2008
A parallel minor is obtained from a graph by any sequence of edge contractions and parallel edge deletions. We prove that, for any positive integer k, every internally 4-connected graph of sufficiently high order contains a parallel minor isomorphic to a
Chun, Carolyn   +3 more
core   +4 more sources

The Cesáro Core of Double Sequences [PDF]

open access: yesAbstract and Applied Analysis, 2011
We have characterized a new type of core for double sequences, PC‐core, and determined the necessary and sufficient conditions on a four‐dimensional matrix A to yield PC‐core{Ax}⊆α(P‐core{x}) for all .
Kuddusi Kayaduman, Celal Çakan
openaire   +2 more sources

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

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