Results 101 to 110 of about 25,311 (211)

Recent Progress and Future Prospects of LWIR T2SL InAs/GaSb Detectors on GaAs

Advanced Photonics Research, Volume 7, Issue 7, July 2026.
InAs/GaSb LWIR type‐II superlattices (T2SLs) on GaAs substrates are cost‐effective and offer higher yield. However, due to a relatively large lattice mismatch, a high density of threading dislocations is created, which is detrimental to device performance.
Paradeisa E. O’Dowd Phanis, Dhafer O. Alshahrani, Dominic C. M. Kwan, Diana L. Huffaker, Ezekiel Anyebe Anyebe, Manoj Kesaria   +5 more
wiley   +1 more source

Late-time Radio Brightening and Emergence of a Radio Jet in the Changing-look AGN 1ES 1927+654

The Astrophysical Journal Letters
We present multifrequency (5–345 GHz) and multiresolution radio observations of 1ES 1927+654, widely considered one of the most unusual and extreme changing-look active galactic nuclei (CL-AGNs).
Eileen T. Meyer, Sibasish Laha, Onic I. Shuvo, Agniva Roychowdhury, David A. Green, Lauren Rhodes, Amelia M. Hankla, Alexander Philippov, Rostom Mbarek, Ari laor, Mitchell C. Begelman, Dev R. Sadaula, Ritesh Ghosh, Gabriele Bruni, Francesca Panessa, Matteo Guainazzi, Ehud Behar, Megan Masterson, Haocheng Zhang, Xiaolong Yang, Mark A. Gurwell, Garrett K. Keating, David Williams-Baldwin, Justin D. Bray, Emmanuel K. Bempong-Manful, Nicholas Wrigley, Stefano Bianchi, Federica Ricci, Fabio La Franca, Erin Kara, Markos Georganopoulos, Samantha Oates, Matt Nicholl, Main Pal, S. Bradley Cenko   +34 more
doaj   +1 more source

Fermi-LAT γ-ray anisotropy and intensity explained by unresolved radio-loud active galactic nuclei [PDF]

, 2014
Radio-loud active galactic nuclei (AGN) are expected to contribute substantially to both the intensity and anisotropy of the isotropic γ-ray background (IGRB).
M. D. Mauro, A. Cuoco, F. Donato, J. Siegal-Gaskins   +3 more
semanticscholar   +1 more source

Compact Radio Sources, Quasars and Active Galactic Nuclei [PDF]

Australian Journal of Physics, 1994
This paper reviews John G. Bolton's contributions to our understanding of compact radio sources associated with quasars and active galactic nuclei (AGNs), and his work leading to the discovery of quasars. Particular attention is given to the interpretation of the observed properties of quasars and AGNs within the framework of unified models which ...
openaire   +1 more source

The host galaxies of radio-loud active galactic nuclei: mass dependences, gas cooling and active galactic nuclei feedback [PDF]

Monthly Notices of the Royal Astronomical Society, 2005
The properties of the host galaxies of a well-defined sample of 2215 radio-loud active galactic nuclei (AGN) with redshifts 0.03 10 23 W Hz -1 is a strong function of stellar mass, rising from nearly zero below a stellar mass of 10 10 M○. to more than 30 per cent at stellar masses of 5 x 10 11 M○.. In contrast to the integrated [O III] luminosity
Best, P. N., Kauffmann, G., Heckman, T. M., Brinchmann, J., Charlot, S., Ivezić, Ž., White, S. D. M.   +6 more
openaire   +3 more sources

A Circuit of Mechanically Regulated Transcription Factors Balances Regenerative and Fibrotic Memory of Mesenchymal Stromal Cells

Advanced Science, Volume 13, Issue 37, 3 July 2026.
Producing MSCs on rigid culture substrates induces a scar‐making phenotype, jeapordizing therapeutic success. ‘Tissue‐soft’ surfaces prevent MSC fibrogenesis and preserve regenerative traits. An epigenetic network, driven by HOXA11 and SALL1, maintains ‘soft memory’ by keeping chromatin open in relaxed MSCs, promoting anti‐fibrotic programs.
Fereshteh Sadat Younesi, Andrew E. Miller, Li Diao, Xinying Guo, Natalie Andonian, Elham Karimizadeh, Thomas H. Barker, Boris Hinz   +7 more
wiley   +1 more source

Optical- and UV-continuum Morphologies of Compact Radio Source Hosts

The Astrophysical Journal
We present the first systematic search for UV signatures from radio source-driven active galactic nuclei (AGN) feedback in Compact Steep Spectrum (CSS) radio galaxies. Owing to their characteristic sub-galactic jets (1–20 kpc projected linear sizes), CSS
C. Duggal, C. P. O’Dea, S. A. Baum, A. Labiano, C. Tadhunter, D. M. Worrall, R. Morganti, G. R. Tremblay, D. Dicken   +8 more
doaj   +1 more source

Seedless One‐Pot Synthesis of Colloidal InAs Quantum Dots Enabling a High‐Accuracy Photoplethysmography Oximeter

Advanced Science, Volume 13, Issue 38, 9 July 2026.
A real‐time, non‐contact photoplethysmography (PPG) system based on InAs colloidal quantum dots (CQDs) synthesized via a seedless injection synthesis is demonstrated. The measured oxygen saturation shows considerable agreement with commercial PPG devices.
Beom Kwan Kim, Seungin Jee, Yongnam Ahn, In‐Suh Lee, Dongeon Kim, Seongchong Park, Yujin Jung, In‐Ho Bae, Se‐Woong Baek   +8 more
wiley   +1 more source

The First Triple Radio Active Galactic Nucleus in an Ongoing Galaxy Merger

The Astrophysical Journal Letters
Galaxy mergers are predicted to be a critical stage of merger-driven SMBH growth and galaxy evolution. Systems exhibiting multiple active galactic nuclei (AGN) are an important observational tool for constraining the prevalence and properties of merging ...
Emma Schwartzman, Ryan W. Pfeifle, Tracy E. Clarke, Kimberly A. Weaver, Nathan J. Secrest, Barry Rothberg, Miranda McCarthy, Daniel Stern, Peter G. Boorman, Joanna Piotrowska   +9 more
doaj   +1 more source

Biomimetic Polymerization of Tellurocysteine: Breaking the Natural Amino Acid Radioprotection Limitation

Advanced Science, Volume 13, Issue 37, 3 July 2026.
Inspired by natural amino acid polymer‐melanin systems, this study strategically incorporated tellurocysteine to develop advanced radiation‐shielding materials. This approach transformed the primary interaction mechanism between melanin‐based materials and incident photons from Compton scattering to the photoelectric effect. Tellurocysteine‐polymerized
Wei Chen, Hanjie Zhu, Yue Zhang, Yuqing Qiao, Ruotong Deng, Huaping Xu, Wei Cao   +6 more
wiley   +1 more source