Results 81 to 90 of about 242,108 (213)

Precise Photometry and Spectroscopy of Transits

, 2007
A planetary transit produces both a photometric signal and a spectroscopic signal. Precise observations of the transit light curve reveal the planetary radius and allow a search for timing anomalies caused by satellites or additional planets. Precise measurements of the stellar Doppler shift throughout a transit (the Rossiter-McLaughlin effect) place a
openaire   +2 more sources

High-resolution Imaging Transit Photometry of Kepler-13AB [PDF]

The Astronomical Journal, 2019
Abstract Using the high-resolution imaging instrument, ’Alopeke, at the Gemini-N telescope, we obtained simultaneous two-channel time-series observations of the binary exoplanet host star Kepler13-AB. Our optical observations were obtained during a transit event of the exoplanet Kepler-13b and light curves were produced using both ...
Steve B. Howell, Nicholas J. Scott, Rachel A. Matson, Elliott P. Horch, Andrew Stephens   +4 more
openaire   +1 more source

Evaluation of a portable glucometer for blood glucose measurement in juvenile green sea turtles (Chelonia mydas)

Australian Veterinary Journal, EarlyView.
Blood glucose is a key physiological indicator in sea turtles, but its measurement in field settings can be challenging. Portable point‐of‐care (POC) glucometers offer practicality, yet their agreement with reference laboratory methods has not been established for juvenile green sea turtles (Chelonia mydas) from the Southwestern Atlantic.
YAA Pérez, MG Chenard, G Martinez‐Souza, VHS Ney, K Russano, J de Menezes Paes, VZ Lemos, BA de Freitas, KM de Souza, JVM da Silva, T Gião, LV dos Santos, C de Freitas Campos, MA Helayel, ET Mársico, NX de Alencar, KVGC da Silva   +16 more
wiley   +1 more source

Exoplanet Detection Using AI in Transit Photometry

, 2023
This study delves into the techniques and results of detecting exoplanets using transit photometry, leveraging data obtained from the Kepler Space Telescope. The research aims to shed light on both manual and automated approaches to exoplanet detection, with a specific emphasis on employing the folding technique to identify recurring patterns in light ...
openaire   +2 more sources

Iloperidone treatment mitigates the Juvenile Huntington's Disease phenotype possibly via Sigma‐1 Receptor Modulation

The FEBS Journal, EarlyView.
We investigated the potential of iloperidone as an activator of Sigma‐1 receptor (S1R) neuroprotective function in juvenile Huntington's disease (jHD). We tested iloperidone on cortical neurons differentiated from patient‐derived iPSCs, demonstrating that it acts as a S1R agonist, decreasing apoptosis, huntingtin aggregation, and oxidative stress ...
Ersilia Fornetti, Gaia Galluzzi, Mario Frezzini, Cécile Exertier, Vittorio Brufani, Gianni Colotti, Giancarlo Ruocco, Jessica Rosati, Angelo Luigi Vescovi, Daniele Narzi, Ilaria Genovese, Andrea Ilari   +11 more
wiley   +1 more source

Singular Spectrum Analysis of Exoplanetary Transits

The Astronomical Journal
Transit photometry is currently the most efficient and sensitive method for detecting extrasolar planets (exoplanets) and a large majority of confirmed exoplanets have been detected with this method.
Hossein Fatheddin, Sedighe Sajadian
doaj   +1 more source

Mauna Kea High Speed Photometry of Transits of the Extrasolar Planet HD 209458B

Open Astronomy, 2003
Using high-speed photometry techniques, three transits of the extrasolar planet across the disk of the star HD 209458 have been observed. The combination of a WET-style 3-channel photometer and an excellent site yielded millimagnitude photometric ...
Sullivan Denis J., Sullivan Tiri
doaj   +1 more source

Long‐read sequencing‐based atlas of tissue‐specific expression of DNM1L transcript variants

The FEBS Journal, EarlyView.
Targeted long‐read sequencing resolves full‐length DNM1L (Drp1) isoforms and reveals conserved, tissue‐specific expression patterns across human and mouse tissues. Functional assays show that Drp1 isoforms differ in their ability to drive mitochondrial fission, independent of abundance, with specific exons modulating activity.
Feng Yan, Jafar S. Jabbari, Naomi X. L. Ling, Anne M. Kong, Jia Q. Truong, Marnie L. Maddock, Ayeshah A. Rosdah, Christopher G. Langendorf, Lifang Zhang, Jarmon G. Lees, Sebastian Bass‐Stringer, Danise Ann Onda, Alice Pébay, Mirella Dottori, Kim Loh, Jessica K. Holien, Sean Lal, Nadia M. Davidson, Jonathan S. Oakhill, Shiang Y. Lim   +19 more
wiley   +1 more source

The TESS-Keck Survey. VII. A Superdense Sub-Neptune Orbiting TOI-1824

The Astronomical Journal
We confirm a massive sub-Neptune-sized planet on a P = 22.8 days orbit around the star TOI-1824 ( T _eff = 5200 K, V = 9.7 mag). TESS first identified TOI-1824 b (formerly TOI-1824.01) as an object of interest in 2020 April after two transits in Sector ...
Sarah Lange, Joseph M. Akana Murphy, Natalie M. Batalha, Ian J. M. Crossfield, Courtney D. Dressing, Benjamin Fulton, Andrew W. Howard, Daniel Huber, Howard Isaacson, Stephen R. Kane, Erik A. Petigura, Paul Robertson, Lauren M. Weiss, Aida Behmard, Corey Beard, Sarah Blunt, Casey L. Brinkman, Ashley Chontos, Fei Dai, Paul A. Dalba, Tara Fetherolf, Steven Giacalone, Michelle L. Hill, Rae Holcomb, Jack Lubin, Mason G. MacDougall, Andrew W. Mayo, Teo Močnik, Daria Pidhorodetska, Alex S. Polanski, Malena Rice, Lee J. Rosenthal, Ryan A. Rubenzahl, Nicholas Scarsdale, Emma V. Turtelboom, Judah Van Zandt, David R. Ciardi, Andrew W. Boyle   +37 more
doaj   +1 more source

Unraveling the active site cover of coproheme decarboxylase from Listeria monocytogenes

The FEBS Journal, EarlyView.
During heme biosynthesis in Gram‐positive bacteria, coproheme decarboxylase (ChdC) catalyzes the conversion of four‐propionate substrate coproheme to the two propionate product heme b. Its active site is universally covered by a flexible linking loop. This study identifies an important histidine residue, which stabilizes the loop in a ChdC homolog.
Nikolaus Falb, Dominik Hörtnagel, Chris Oostenbrink, Paul G. Furtmüller, Stefan Hofbauer   +4 more
wiley   +1 more source