Results 81 to 90 of about 130,683 (338)

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

Analyzing the Morphology of Late-phase Stellar Flares from G-, K-, and M-type Stars

The Astrophysical Journal
Stellar flares occasionally present a peak-bump light-curve morphology, consisting of an initial impulsive phase followed by a gradual late phase.
Denise G. Yudovich, Kai E. Yang, Xudong Sun   +2 more
doaj   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

FEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino, Meijie Li, Cécile Fizames, Mattia Adamo, Laurence Lejay, Christian Dubos, Matthieu Platre, Antoine Martin   +7 more
wiley   +1 more source

Stellar activity of planetary host star HD 189733

, 2009
Extra-solar planet search programs require high-precision velocity measurements. They need to study how to disentangle radial-velocity variations due to Doppler motion from the noise induced by stellar activity. We monitored the active K2V star HD 189733
A. Vidal-Madjar, A.-M. Lagrange, Alonso, B. Croll, B. Loeillet, Bakos, Bakos, Baliunas, Baranne, Bonfils, Bouchy, C. Lovis, C. Moutou, C. Perrier, Croll, D. Queloz, D. Ségransan, F. Bouchy, F. Pepe, F. Pont, G. Hébrard, Henry, Hébrard, I. Boisse, J. F. Rowe, J. M. Matthews, Knutson, Kürster, Landman, M. Desort, M. Mayor, Matthews, Melo, Moutou, N. C. Santos, Pepe, Pont, Queloz, S. Udry, Saar, Santos, Shkolnik, T. Forveille, Walker, Wilson, Winn, Winn, X. Bonfils, X. Delfosse   +48 more
core   +3 more sources

Searching for Stellar Activity Cycles Using Flares: The Short- and Long-timescale Activity Variations of TIC-272272592

The Astronomical Journal
We examine 4 yr of Kepler 30 minutes data, and five sectors of Transiting Exoplanet Survey Satellite 2 minutes data for the dM3 star KIC-8507979/TIC-272272592. This rapidly rotating ( P = 1.2 day) star has previously been identified as flare active, with
Tobin M. Wainer, James R. A. Davenport, Guadalupe Tovar Mendoza, Adina D. Feinstein, Tom Wagg   +4 more
doaj   +1 more source

A Cre‐dependent lentiviral vector for neuron subtype‐specific expression of large proteins

FEBS Letters, EarlyView.
We designed a versatile and modular lentivector comprising a Cre‐dependent switch and self‐cleaving 2A peptide and tested it for co‐expression of GFP and a 2.8 kb gene of interest (GOI) in mouse cortical parvalbumin (PV+) interneurons and midbrain dopamine (TH+) neurons.
Weixuan Xue, Sandrine Picaud, Régine Hepp, Stéphanie Pons, Uwe Maskos, Bertrand Lambolez, Ludovic Tricoire   +6 more
wiley   +1 more source

Removing Stellar Activity Signals from Radial Velocity Measurements Using Neural Networks [PDF]

, 2021
Z. de Beurs, Andrew Vanderburg, Christopher J. Shallue   +2 more
openalex   +1 more source

Variation in the frequency separations with activity and impact on stellar parameter determination

, 2010
Frequency separations used to infer global properties of stars through asteroseismology can change depending on the strength and at what epoch of the stellar cycle the p-mode frequencies are measured.
Bohm-Vitense E, Chaplin, Christensen-Dalsgaard J, Creevey, D Salabert, Metcalle T, O L Creevey, R A García, Salabert D, Salabert D, Stello   +10 more
core   +1 more source

Properties of Flare Quasiperiodic Pulsations Based on a New TESS Flare Catalog

The Astrophysical Journal Supplement Series
Stellar flares are important indicators of stellar magnetic activity and have been widely studied. Detailed studies of flares have raised new questions. For example, the quasiperiodic pulsation (QPP) phenomenon in flares challenges standard flare models,
Yinpeng Wang, Li-yun Zhang, Tianhao Su, Prabhakar Misra, Xianming L. Han   +4 more
doaj   +1 more source

Stellar X-ray Emission as an Indicator of Stellar Magnetic Activity [PDF]

Symposium - International Astronomical Union, 1983
An overview of recent Einstein Observatory observations and theoretical modeling of stellar x-ray emission is presented, with particular emphasis upon the role such studies can play furthering our understanding of stellar magnetic activity. We argue that solar observations can be used to show that coronal emission is morphologically related to surface ...
openaire   +1 more source