Results 71 to 80 of about 1,265,454 (291)

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

Flexible Spacecraft Attitude Control using Hybrid Control Scheme of H∞ and Sliding Mode Control [PDF]

فصلنامه علوم و فناوری فضایی, 2008
In this paper, based on the Lagrange method, attitude motion equations for a flexible spacecraft have been derived. Flexible appendages are modeled by Euler-Bernoulli beam.
M. Sayanjali, J. Roshanian, A. Ghafari
doaj  

Two-Dimensional Model Including the Mechanism of a Poloidal Shock Structure and Geodesic Acoustic Mode in Toroidal Plasmas [PDF]

, 2008
In H-mode plasmas, two-dimensional steep structures of the electrostatic potential and density are formed when a large poloidal flow exists, whose formation mechanism has been studied to obtain a quantitative understanding of the particle transport in H ...
Kimitaka ITOH, Naohiro KASUYA
core   +2 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Empirical scaling of the L–H threshold power for metal wall tokamaks using a multi-device database

Nuclear Fusion
The empirical scaling for the H-mode power threshold in tokamaks has been revisited using a database with threshold data from machines with a metallic first wall as part of International Tokamak Physics Activity (ITPA) task TC-26.
E. Delabie, E.R. Solano, J.W. Hughes, C.F. Maggi, F. Ryter, G. Birkenmeier, P. Carvalho, M. Cavedon, M. Chernyshova, P. David, J. Hillesheim, U. Plank, the EUROfusion Tokamak Exploitation Team, the ASDEX Upgrade Team, JET Contributors   +14 more
doaj   +1 more source

Effect of impurities on the transition between minority ion and mode conversion ICRH heating in (3He)-H tokamak plasmas [PDF]

, 2013
Hydrogen majority plasmas will be used in the initial non-activated phase of ITER operation. Optimizing ion cyclotron resonance heating (ICRH) in such scenarios will help in achieving H-mode in these plasmas.
Fülöp, T., Kazakov, Ye. O., Van Eester, D.   +2 more
core   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Nonlinear simulations of the peeling-ballooning instability of super H-modes in the HL-3 tokamak

Nuclear Fusion
As the newly built tokamak in China, HL-3 will explore high-performance operation scenarios, such as super H-mode. The energy confinement and core parameters in the super H-mode can be much larger than that in the normal H-mode.
Yiren Zhu, Wulyu Zhong, Xiaolan Zou, Jiaxian Li, Miao Xue, Zhengji Li, Lei Xue, Guoliang Xiao, Ruihai Tong, Yunpeng Zou, Jiao Yin, Anshu Liang, Linzi Liu, Boda Yuan, Min Xu, HL-3 Team   +15 more
doaj   +1 more source

Recent results of H-mode studies on asdex [PDF]

, 1990
In a comparative study of various confinement regimes the H-mode demonstrated the best performance. Confinement enhancement factors (above ITER 89-P L-mode scaling) in the range of 1.6 fH 2.8 have been achieved with values depending on the divertor ...
Field, A.R., Fussmann, G., Hofmann, J.V., Manso, M.E., Matias, José, Vollmer, O., Wagner, F.   +6 more
core  

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