Results 71 to 80 of about 363,457 (364)

How do starspots influence the transit timing variations of exoplanets? Simulations of individual and consecutive transits [PDF]

, 2015
Transit timing variations (TTVs) of exoplanets are normally interpreted as the consequence of gravitational interaction with additional bodies in the system.
P. Ioannidis, K. Huber, J. Schmitt
semanticscholar   +1 more source

Plasmodium falciparum gametogenesis essential protein 1 (GEP1) is a transmission‐blocking target

FEBS Letters, EarlyView.
This study shows Plasmodium falciparum GEP1 is vital for activating sexual stages of malarial parasites even independently of a mosquito factor. Knockout parasites completely fail gamete formation even when a phosphodiesterase inhibitor is added. Two single‐nucleotide polymorphisms (V241L and S263P) are found in 12%–20% of field samples.
Frederik Huppertz, Milagros Siebeck Caturelli, Lina S. Lehmann, Florian Kurth, Alexander G. Maier, Kai Matuschewski   +5 more
wiley   +1 more source

Transit Detection in the MEarth Survey of Nearby M Dwarfs: Bridging the Clean-First, Search-Later Divide

, 2012
In the effort to characterize the masses, radii, and atmospheres of potentially habitable exoplanets, there is an urgent need to find examples of such planets transiting nearby M dwarfs. The MEarth Project is an ongoing effort to do so, as a ground-based
Alonso, Bakos, Bakos, Batalha, Bean, Beatty, Berta, Berta, Bonfils, Bonfils, Burke, Carter, Carter, Christopher J. Burke, Croll, Croll, Crossfield, David Charbonneau, Doyle, Dragomir, Dupuy, Dzigan, Désert, Emilio E. Falco, Henry, Hogg, Howard, Irwin, Irwin, Irwin, Irwin, Irwin, Jehin, Jenkins, Jenkins, Jonathan Irwin, Kovacs, Kowalski, Kundurthy, Law, Lépine, Menou, Miller-Ricci, Miller-Ricci Kempton, Nettelmann, Pepper, Press, Rogers, Schmidt, Siverd, Sivia, Skrutskie, Smith, Stumpe, Tenenbaum, Tofflemire, von Braun, Zachory K. Berta   +57 more
core   +1 more source

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

FEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer, Matheus Felipe Santos, Maurício Mazzine Filho, Gabriela Oliveira Castro, Agustín Hernández, Manoel Aparecido Peres, Alejandro Miguel Katzin, Marcell Crispim   +7 more
wiley   +1 more source

Revisiting the transits of CoRoT-7b at a lower activity level [PDF]

, 2014
The first super-Earth with measured radius discovered was CoRoT-7b and it has opened the new field of rocky exoplanet characterisation. To better understand this interesting system, new observations were taken with the CoRoT satellite. During this run 90
S. Barros, J. Almenara, M. Deleuil, R. Díaz, S. Csizmadia, J. Cabrera, S. Chaintreuil, A. Cameron, A. Hatzes, R. Haywood, Antonino Francesco Lanza, S. Aigrain, R. Alonso, R. Bord'e, F. Bouchy, H. Deeg, A. Erikson, M. Fridlund, S. Grziwa, D. Gandolfi, T. Guillot, E. Guenther, A. Léger, C. Moutou, M. Ollivier, T. Pasternacki, M. Patzold, H. Rauer, D. Rouan, A. Santerne, J. Schneider, G. W. A. M. Universit'e, Cnrs, Lam, Marseille, France.   +35 more
semanticscholar   +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

New observations and transit solutions of the exoplanets HAT-P-54b and WASP-153b [PDF]

Serbian Astronomical Journal, 2019
We present photometric observations of the newly-discovered transiting exoplanets HAT-P-54b and WASP-153b with the Rozhen 2 m telescope. As a result we improved their periods.
Kjurkchieva Diana, Petrov Nikola, Ibryamov Sunay   +2 more
doaj   +1 more source

Transit Analysis Package (TAP and autoKep): IDL Graphical User Interfaces for Extrasolar Planet Transit Photometry [PDF]

, 2011
We present an IDL graphical user interface-driven software package designed for the analysis of extrasolar planet transit light curves. The Transit Analysis Package (TAP) software uses Markov Chain Monte Carlo (MCMC) techniques to fit light curves using ...
Andrew W. Mann, Diana Dragomir, Eric Agol, J. Zachary Gazak, Jason Eastman, John A. Johnson, John Tonry   +6 more
core   +4 more sources

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

TFAW: wavelet-based signal reconstruction to reduce photometric noise in time-domain surveys

, 2018
There have been many efforts to correct systematic effects in astronomical light curves to improve the detection and characterization of planetary transits and astrophysical variability.
del Ser, D., Fors, O., Núñez, J.
core   +1 more source