Results 151 to 160 of about 69,461 (285)

Atmospheric Retrieval of Subaru/IRD High-resolution Spectrum of the Archetype T-type Brown Dwarf Gl 229 B

The Astrophysical Journal
Brown dwarfs provide a unique opportunity to study atmospheres and their physical and chemical processes with high precision, especially in temperature ranges relevant to exoplanets. In this study, we performed high-resolution ( R  ∼ 70,000) spectroscopy
Yui Kawashima, Hajime Kawahara, Yui Kasagi, Hiroyuki Tako Ishikawa, Kento Masuda, Takayuki Kotani, Tomoyuki Kudo, Teruyuki Hirano, Masayuki Kuzuhara, Stevanus K. Nugroho, John Livingston, Hiroki Harakawa, Jun Nishikawa, Masashi Omiya, Takuya Takarada, Motohide Tamura, Akitoshi Ueda   +16 more
doaj   +1 more source

When numbers matter: Rethinking the role of gene duplication on short evolutionary timescales

American Journal of Botany, EarlyView.
Freja Lindstedt, Qiujie Zhou, Pascal Milesi   +2 more
wiley   +1 more source

Negative energy dust acoustic waves evolution in a dense magnetized quantum Thomas-Fermi plasma. [PDF]

Sci Rep, 2022
Abd-Elzaher M, Atteya A.
europepmc   +1 more source

Low Molecular Weight Multistate Photoswitches Based on Simple Norbornadiene‐Triazine Scaffolds

Angewandte Chemie International Edition, EarlyView.
Our new polyswitchable norbornadiene‐triazine hybrids are promising candidates for molecular based data storage. These small, low‐molecular‐weight molecules can be both symmetric or contain different NBD chromophors and exhibit an unprecedently high variety of distinct switching states.
Daniel Krappmann, Adrian J. Müller, Erik J. Schulze, Harald Maid, Andreas Dreuw, Andreas Hirsch   +5 more
wiley   +1 more source

S-index periodicity detection based on multiple random spectral observations. [PDF]

Sci Rep, 2023
Shen YF.
europepmc   +1 more source

Compatibility Between HPEG Type PCEs With Various Anionic Charge Densities and Portland Cements With Different C3A Contents

Journal of Applied Polymer Science, EarlyView.
Evaluation of the compatibility between PCEs possessing varying anionic charge densities and Portland cements with different C3A contents. ABSTRACT This study focused on the compatibility of phosphate and sulfonate‐substituted polycarboxylate ether‐based water‐reducing admixtures (PCE) exhibiting different anionic charge densities with Portland cements
Kemal Karakuzu, Veysel Kobya, Ali Mardani, Burak Felekoğlu, Kambiz Ramyar   +4 more
wiley   +1 more source

The Carbon-to-oxygen Ratio in Cool Brown Dwarfs and Giant Exoplanets. I. The Benchmark Late-T Dwarfs GJ 570D, HD 3651B, and Ross 458C

The Astrophysical Journal
Measurements of the C/O ratio in brown dwarfs are lacking, in part due to past models adopting solar C/O only. We have expanded the ATMO 2020 atmosphere model grid to include nonsolar metallicities and C/O ratios in the T dwarf regime.
Mark W. Phillips, Michael C. Liu, Zhoujian Zhang   +2 more
doaj   +1 more source

Formulation and resolutions of the red sky paradox. [PDF]

Proc Natl Acad Sci U S A, 2021
Kipping D.
europepmc   +1 more source

Histochemical indications for a chemically complex signal produced by the cervical gill slit gland of the pygmy sperm whale (Kogia breviceps)

The Anatomical Record, EarlyView.
Abstract The pygmy sperm whale (Kogia breviceps) possesses an exocrine gland associated with its false gill slit pigmentation pattern. The cervical gill slit gland is a compound tubuloalveolar gland that produces a holocrine secretion and displays maturational changes in size and secretory histology. While the morphology of the cervical gill slit gland
Tiffany F. Keenan, William A. McLellan, Sentiel A. Rommel, Alexander M. Costidis, Craig A. Harms, J. G. M. Thewissen, Susan J. Rehorek, David S. Rotstein, Mark D. Gay, Alison R. Taylor, Heather N. Koopman, Ying Wang, Stephanie Kamel, D. Ann Pabst   +13 more
wiley   +1 more source

Discovery of sexual dimorphism of the laryngeal sac in the common minke whale Balaenoptera acutorostrata

The Anatomical Record, EarlyView.
Abstract Mysticetes, or baleen whales, have an air sac on the ventral surface of the larynx known as the “laryngeal sac.” The primary hypothesis regarding this structure's function is that it is involved in sound production. However, several other functions have been proposed, including air recycling, air storage, and even buoyancy control.
Gen Nakamura, Hiroko Yamada, Ayumi Hirose, Hikari Maeda, Joy S. Reidenberg, Hidehiro Kato, Shinho Park, Yoshihiro Fujise   +7 more
wiley   +1 more source