Results 131 to 140 of about 4,134 (286)
When numbers matter: Rethinking the role of gene duplication on short evolutionary timescales
American Journal of Botany, EarlyView.
Freja Lindstedt +2 more
wiley +1 more source
67 Additional L Dwarfs Discovered by the Two Micron All Sky Survey [PDF]
, 2000 J. Davy Kirkpatrick +8 more
openalex +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 +5 more
wiley +1 more source
Evidence for a Volcanic Atmosphere on the Sub-Earth L 98-59 b
The Astrophysical Journal LettersAssessing the prevalence of atmospheres on rocky planets around M-dwarf stars is a top priority of exoplanet science. High-energy activity from M dwarfs can destroy the atmospheres of these planets, which could explain the lack of atmosphere detections ...
Aaron Bello-Arufe +10 more
doaj +1 more source
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 +4 more
wiley +1 more source
The Astrophysical JournalBrown dwarfs with measured dynamical masses and spectra from direct imaging are benchmarks that anchor substellar atmosphere cooling and evolution models.
Briley L. Lewis +12 more
doaj +1 more source
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 +13 more
wiley +1 more source
The Initial Mass Function of Stars and Brown Dwarfs in the Upper Sco Association
The Astronomical JournalI present infrared spectroscopy of 37 brown dwarf candidates in the Upper Scorpius (Upper Sco) association, 35 of which are classified as young and cool, making them likely members.
K. L. Luhman
doaj +1 more source
Analysis of Keck HIRES Spectra of Early L‐Type Dwarfs [PDF]
, 2001 A. Schweitzer +4 more
openalex +1 more source
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 +7 more
wiley +1 more source