Results 51 to 60 of about 508,942 (290)

Investigating the Puzzling Synchrotron Behaviour of Mrk 421

Galaxies, 2016
We investigate the multiwavelength behaviour of the high-energy peaked BL Lac object (HBL) Mrk 421 at redshift z = 0 . 031 in the period 2007–2015.
Maria I. Carnerero, Claudia M. Raiteri, Massimo Villata, Jose A. Acosta Pulido, Paul S. Smith, Valeri M. Larionov, the WEBT Collaboration   +6 more
doaj   +1 more source

Research of Lightning Protection Systems of Wind Power Plant [PDF]

Problems of the Regional Energetics, 2019
The work is dedicated to the study of the influence of the wind turbine lightning protection system on the possibility of a lightning strike to the lightning rod, to the protected object and to the surface of the earth.
Potapenko A.N., Kumar Udaya, Shtifanov A.I., Soldatenkov A.S.   +3 more
doaj   +1 more source

On the dynamical evolution of 2002 VE68

, 2012
Minor planet 2002 VE68 was identified as a quasi-satellite of Venus shortly after its discovery. At that time its data-arc span was only 24 days, now it is 2,947 days. Here we revisit the topic of the dynamical status of this remarkable object as well as
Aarseth, Barajas, Benest, Benner, Bottke, Brasser, C. de la Fuente Marcos, Christou, Christou, Christou, Connors, Connors, Danielsson, Danielsson, de Pater, Dermott, Gavrik, Griesser, Hamilton, Hénon, Ito, Jackson, Kinoshita, Kokubo, Laskar, Laskar, Laskar, Laskar, Lidov, Lidov, Makino, Mikkola, Mikkola, Mikkola, Mikkola, Morais, Namouni, Namouni, Ostro, Pravec, Quinn, R. de la Fuente Marcos, Scholl, Sheppard, Stacey, Standish, Szebehely, Tabachnik, Varadi, Wajer, Wajer, Wiegert, Wiegert, Wiegert, Wisdom   +54 more
core   +1 more source

Photosynthesis under far‐red light—evolutionary adaptations and bioengineering of light‐harvesting complexes

FEBS Letters, EarlyView.
Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii, Edoardo Andrea Cutolo, Daniele Montepietra, Claudia Battarra, Roberto Caferri, Stefano Capaldi, Zeno Guardini, Luca Dall'Osto, Roberto Bassi   +8 more
wiley   +1 more source

A super-Earth-sized planet orbiting in or near the habitable zone around Sun-like star

, 2013
We present the discovery of a super-earth-sized planet in or near the habitable zone of a sun-like star. The host is Kepler-69, a 13.7 mag G4V-type star.
Barclay, Thomas, Borucki, William J., Bryson, Stephen T., Burke, Christopher J., Caldwell, Douglas A., Christiansen, Jessie L, Ciardi, David, Clarke, Bruce D., Coughlin, Jeffrey L., Fischer, Debra A., Haas, Michael R., Howell, Steve B., Huber, Daniel, Hunter, Roger, Isaacson, Howard, Jenkins, Jon M., Kolbl, Rea, Li, Jie, Lissauer, Jack J., Marcy, Geoffrey W., Mullally, Fergal, Quintana, Elisa V., Rowe, Jason F., Sabale, Anima, Seader, Shawn E., Smith, Jeffrey C., Still, Martin, Tenenbaum, Peter, Thompson, Susan E., Twicken, Joseph D., Uddin, AKM Kamal   +30 more
core   +1 more source

Constraining the physical properties of near-Earth object 2009 Bd [PDF]

, 2014
We report on Spitzer Space Telescope Infrared Array Camera observations of near-Earth object 2009 BD that were carried out in support of the NASA Asteroid Robotic Retrieval Mission concept.
Chesley, S. R., Farnocchia, D., Fazio, G. G., Harris, A. W., Hora, J. L., Mommert, M., Mueller, M., Smith, H. A., Trilling, D. E., Vokrouhlický, D.   +9 more
core   +3 more sources

The role of fibroblast growth factors in cell and cancer metabolism

FEBS Letters, EarlyView.
Fibroblast growth factor (FGF) signaling regulates crucial signaling cascades that promote cell proliferation, survival, and metabolism. Therefore, FGFs and their receptors are often dysregulated in human diseases, including cancer, to sustain proliferation and rewire metabolism.
Jessica Price, Chiara Francavilla
wiley   +1 more source

On the Lunar Origin of Near-Earth Asteroid 2024 PT5

The Astrophysical Journal Letters
The near-Earth asteroid (NEA) 2024 PT5 is on an Earth-like orbit that remained in Earth's immediate vicinity for several months at the end of 2024. PT5's orbit is challenging to populate with asteroids originating from the main belt and is more commonly ...
Theodore Kareta, Oscar Fuentes-Muñoz, Nicholas Moskovitz, Davide Farnocchia, Benjamin N. L. Sharkey   +4 more
doaj   +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

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