Results 91 to 100 of about 2,076,692 (292)

High-contrast coronagraph for ground-based imaging of Jupiter-like planets

, 2009
We propose a high-contrast coronagraph for direct imaging of young Jupiter-like planets orbiting nearby bright stars. The coronagraph employs a step-transmission filter in which the intensity is apodized with a finite number of steps of identical ...
Ammons, De-Qing Ren, Henry, Ida, Jiang-Pei Dou, Marley, Neuhauser, Ren, Yong-Tian Zhu   +8 more
core   +1 more source

Hidden in Plain Sight: Searching for Dark Companions to Bright Stars with the Large Binocular Telescope and SHARK-VIS

The Astrophysical Journal
We report the results from a pilot study to search for black holes and other dark companions in binary systems using direct imaging with SHARK-VIS and the iLocater pathfinder “Lili” on the Large Binocular Telescope.
D. M. Rowan, T. A. Thompson, C. S. Kochanek, G. Li Causi, J. Roth, P. Vaccari, F. Pedichini, R. Piazzesi, S. Antoniucci, V. Testa, M. C. Johnson, J. Crass, J. R. Crepp, A. Bechter, E. B. Bechter, B. L. Sands, R. J. Harris, B. J. Fulton   +17 more
doaj   +1 more source

Direct 3D Mass Spectrometry Imaging Analysis of Environmental Microorganisms

Molecules
Assessing the spatial distribution of microorganisms’ metabolites in growth medium remains a challenge. Here, we present the first use of the newly developed LARAPPI/CI-MSI 3D (laser ablation remote atmospheric pressure photoionization/chemical ...
Justyna Szulc, Tomasz Grzyb, Joanna Nizioł, Sumi Krupa, Wiktoria Szuberla, Tomasz Ruman   +5 more
doaj   +1 more source

Integrated genomic and proteomic profiling reveals insights into chemoradiation resistance in cervical cancer

Molecular Oncology, EarlyView.
A comprehensive genomic and proteomic analysis of cervical cancer revealed STK11 and STX3 as a potential biomarkers of chemoradiation resistance. Our study demonstrated EGFR as a therapeutic target, paving the way for precision strategies to overcome treatment failure and the DNA repair pathway as a critical mechanism of resistance.
Janani Sambath, Irene A. George, Srikanth S. Manda, Prasanth Ariyannur, Ekta R. Dhawale, Raja Sekhar Kommu, Rajan Datar, Darshana Patil, Vinita Trivedi, Manisha Singh, Kumar Prabhash, Sewanti Limaye, Richa Chauhan, Prashant Kumar   +13 more
wiley   +1 more source

New Orbital Constraints for YSES 1 b and HR 2562 B from High-Precision Astrometry and Planetary Radial Velocities

The Astronomical Journal
We present new VLTI/GRAVITY astrometry and updated orbit fits for the directly imaged companions YSES 1 b and HR 2562 B, substellar objects straddling the planet–brown-dwarf boundary.
Jonathan Roberts, William Thompson, Jason J. Wang, Sarah Blunt, William O. Balmer, Guillaume Bourdarot, Brendan P. Bowler, Gael Chauvin, Frank Eisenhauer, Thomas K. Henning, Jens Kammerer, Flavien Kiefer, Matthew A. Kenworthy, Pierre Kervella, Sylvestre Lacour, A.-M. Lagrange, Eric L. Nielsen, Laurent Pueyo, Emily Rickman, Olli Sipilä, Silvia Spezzano, Tomas Stolker, Alice Zurlo   +22 more
doaj   +1 more source

Direct imaging of LaAlO3/SrTiO3 nanostructures using piezoresponse force microscopy

APL Materials, 2013
The interface between LaAlO3 and TiO2-terminated SrTiO3 can be switched between metastable conductive and insulating states using a conductive atomic force microscope probe.
Mengchen Huang, Feng Bi, Sangwoo Ryu, Chang-Beom Eom, Patrick Irvin, Jeremy Levy   +5 more
doaj   +1 more source

Directional image analysis

, 1994
Bibliography: p. 162-176.
openaire   +2 more sources

Modeling hepatic fibrosis in TP53 knockout iPSC‐derived human liver organoids

Molecular Oncology, EarlyView.
This study developed iPSC‐derived human liver organoids with TP53 gene knockout to model human liver fibrosis. These organoids showed elevated myofibroblast activation, early disease markers, and advanced fibrotic hallmarks. The use of profibrotic differentiation medium further amplified the fibrotic signature seen in the organoids.
Mustafa Karabicici, Soheil Akbari, Ceyda Caliskan, Canan Celiker, Ozden Oz, Leman Binokay, Gökhan Karakulah, Serif Senturk, Esra Erdal   +8 more
wiley   +1 more source

Direct Ultraviolet Imaging and Spectroscopy of Betelgeuse

, 2013
Direct images of Betelgeuse were obtained over a span of 4 years with the Faint Object Camera on the Hubble Space Telescope. These images reveal the extended ultraviolet continuum emission (about 2 times the optical diameter), the varying overall ...
Dupree, A. K., Stefanik, R. P.
core   +1 more source

Multi-band Spectral and Astrometric Characterization of the HIP 99770 b Planet with SCExAO/CHARIS and Gaia

The Astronomical Journal
We present and analyze follow-up, higher resolution ( R ∼ 70) H and K band integral field spectroscopy of the superjovian exoplanet HIP 99770 b with SCExAO/CHARIS.
Danielle Bovie, Thayne Currie, Mona El Morsy, Brianna Lacy, Masayuki Kuzuhara, Jeffrey Chilcote, Taylor L. Tobin, Olivier Guyon, Tyler D. Groff, Julien Lozi, Sebastien Vievard, Vincent Deo, Frantz Martinache, Yiting Li, Motohide Tamura   +14 more
doaj   +1 more source