Results 31 to 40 of about 397,828 (263)

An intelligent genetic algorithm for PAPR reduction in a multi-carrier CDMA wireless system

, 2008
— A novel intelligent genetic algorithm (GA), called Minimum Distance guided GA (MDGA) is proposed for peak-average-power ratio (PAPR) reduction based on partial transmit sequence (PTS) scheme in a synchronous Multi-Carrier Code Division Multiple Access (
Chen, HH, Song, Y., Yang Zhang, Yonghua Song, Qiang Ni, Ni, Q, Ni, Q., Zhang, Y, Song, Y, Chen, H.H., Hsiao-Hwa Chen, Zhang, Y.   +11 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

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

FEBS 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, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Assessment and improvement of the capabilities of a window correlator to model GPS multipath phase errors

, 2006
The potential of output from a window correlator to mitigate GPS phase multipath is reviewed and assessed based on the analysis of data collected in controlled multipath environments under both static and kinematic conditions.
P.A. Cross, Euler, Hans Jürgen, Betaille, D.F., Cross, P.A., D.F. Betaille, Cross, Paul A, Euler, H.-J., Betaille, David, H. Euler   +8 more
core   +1 more source

Time transfer using the phase of the GPS carrier [PDF]

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1998
We report on tests of time transfer using the phase of the GPS carrier. The first set of experiments used two clocks connected to independent GPS receivers with closely-spaced antennas. The second set of experiments compared a clock at NIST in Boulder with one at the US Naval Observatory in Washington, DC.
Larson, K. M., Levine, J.
openaire   +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

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Zero order synthetic hologram with a sinusoidal phase carrier for generation of multiple beams [PDF]

, 2009
We discuss a phase synthetic hologram, for encoding arbitrary complex fields, whose design is based on a sinusoidal phase grating with a spatially modulated phase depth.
VICTOR MANUEL ARRIZON PEÑA, MARIA GUADALUPE MENDEZ VAZQUEZ, ULISES RUIZ CORONA   +2 more
core  

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

Carrier-envelope phase controlled dynamics of relativistic electron beams in a laser-wakefield accelerator

, 2022
In laser-wakefield acceleration, an ultra-intense laser pulse is focused into an underdense plasma in order to accelerate electrons to relativistic velocities.
Lucas Rovige (14358315), Joséphine Monzac (14358318), Marie Ouillé (11506369), Julius Huijts (2138002), Igor A. Andriyash (14358321), Aline Vernier (14358324), Valdas Girdauskas (14358330), Jaismeen Kaur (11400227), Zhao Cheng (347916), Vidmantas Tomkus (14358327)   +9 more
core   +1 more source