Results 41 to 50 of about 1,151,732 (292)

Ionospheric Behavior during the 10 June 2021 Annular Solar Eclipse and Its Impact on GNSS Precise Point Positioning

Remote Sensing, 2022
The main effects of the 10 June 2021 annular solar eclipse on GNSS position estimation accuracy are presented. The analysis is based on TEC measurements made by 2337 GNSS stations around the world.
Juan Carlos Valdés-Abreu, Marcos A. Díaz, Manuel Bravo, Juan Carlos Báez, Yohadne Stable-Sánchez   +4 more
doaj   +1 more source

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

Effects of the passage of Comet C/2013 A1 (Siding Spring) observed by the Shallow Radar (SHARAD) on Mars reconnaissance orbiter [PDF]

, 2015
The close passage of Comet C/2013 A1 (Siding Spring) to Mars provided a unique opportunity to observe the interaction of cometary materials with the Martian ionosphere and atmosphere using the sounding radar SHARAD (SHAllow RADar) aboard Mars ...
Anthony Egan, Benna, Bruce A. Campbell, Campbell, Campbell, Cartacci, Croci, Daniel Nunes, Fabrizio Bernardini, Garner, Grebowsky, Gronoff, Gurnett, Jeffrey J. Plaut, Kelley, Kelly, Marco Restano, Pesnell, Restano, Roberto Seu, Roger J. Phillips, Safaeinili, Safaeinili, Schneider, Seu, Seu, Tricarico, Withers, Yelle, Yonggyu Gim   +29 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

Neural network based model for global Total Electron Content forecasting

Journal of Space Weather and Space Climate, 2020
We introduce a novel empirical model to forecast, 24 h in advance, the Total Electron Content (TEC) at global scale. The technique leverages on the Global Ionospheric Map (GIM), provided by the International GNSS Service (IGS), and applies a nonlinear ...
Cesaroni Claudio, Spogli Luca, Aragon-Angel Angela, Fiocca Michele, Dear Varuliator, De Franceschi Giorgiana, Romano Vincenzo   +6 more
doaj   +1 more source

Forecast of Total Electron Content over Europe for disturbed ionospheric Conditions [PDF]

, 2012
A general picture of the occurrence of ionospheric storms as function of local time, season and location is known from numerous studies over the past 50 years.
Berdermann, Jens, Borries, Claudia, Hoque, Mohammed Mainul, Jakowski, N.   +3 more
core  

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

Spectra of equatorial total electron content derived from GPS signals [PDF]

Annales Geophysicae, 2009
High cadence GPS TEC signals collected on Ascension Island, South Atlantic Ocean, during sunspot minimum, and in Vanimo, Papua New Guinea, over half a solar cycle, have been analysed for their spectral properties.
M. M. J. L. van de Kamp, P. S. Cannon, P. S. Cannon   +2 more
doaj   +1 more source

Development and application of rice starch based edible coating to improve the postharvest storage potential and quality of plum fruit (Prunus salicina) [PDF]

, 2018
The study investigated the possibility of enhancing the shelf life of plum fruit coated with rice starch-ι-carrageenan (RS-ι-car) composite coating blended with sucrose fatty acid esters (FAEs). Film solution (starch 3%, carrageenan 1.5% and FAEs 2%) was
Bowyer, M., Golding, J. B., Pristijono, P., Scarlett, C. J., Singh, S. P., Stathopoulos, Costas E., Thakur, R., Vuong, Q.V.   +7 more
core   +2 more sources

Total‐electron‐content signatures of plasmaspheric motions

Geophysical Research Letters, 1995
Measurements of fluctuations in total electron content made with a radio interferometer reveal weak but frequent outbursts of total‐electron‐content disturbances, with trace azimuths roughly westward, with trace speeds up to ∼2 km/s, and with temporal periods in the range 100–500 seconds. Statistical tests of the dataset suggest that these disturbances
Abram R. Jacobson, Robert C. Carlos, Robert S. Massey, Guanghui Wu, Gary Hoogeveen   +4 more
openaire   +1 more source