Results 51 to 60 of about 2,097,454 (229)
The futuristic manifolds of REM sleep
Journal of Sleep Research, Volume 34, Issue 2, April 2025.Summary Since one of its first descriptions 70 years ago, rapid eye movement sleep has continually inspired and excited new generations of sleep researchers. Despite significant advancements in understanding its neurocircuitry, underlying mechanisms and microstates, many questions regarding its function, especially beyond the early neurodevelopment ...
Liborio Parrino, Ivana Rosenzweig
wiley +1 more source
The Simons Observatory: Galactic Science Goals and Forecasts
The Astrophysical Journal, 2022 Observing in six frequency bands from 27 to 280 GHz over a large sky area, the Simons Observatory (SO) is poised to address many questions in Galactic astrophysics in addition to its principal cosmological goals.
Brandon S. Hensley +33 more
doaj +1 more source
Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight
Experimental Physiology, EarlyView.Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley +1 more source
The Astrophysical Journal, 2023 Reactions between cyano radicals and aromatic hydrocarbons are believed to be important pathways for the formation of aromatic nitriles in the interstellar medium (ISM) including those identified in the Taurus molecular cloud (TMC-1).
Mengqi Wu +5 more
doaj +1 more source
Chemical Evolution of Some Selected Complex Organic Molecules in Low-mass Star-forming Regions
The Astrophysical Journal, 2023 The destiny of complex organic molecules (COMs) in star-forming regions is interlinked with various evolutionary phases. Therefore, identifying these species in diversified environments of identical star-forming regions would help to understand their ...
Bratati Bhat +8 more
doaj +1 more source
Kinetics and Thermodynamics of Tautomerization Reactions of 1,1‐ and 1,2‐Ethenediols
International Journal of Chemical Kinetics, Volume 57, Issue 12, Page 687-696, December 2025.ABSTRACT Tautomerism is a common phenomenon amongst organic molecules with easily interconvertible isomers, which can impact drug action and toxicity. Here we are interested in the enols of carboxylic acids, which are known to be much less stable than their acid counterparts.
Judith Würmel, John M. Simmie
wiley +1 more source
Over the possible role of metal atom clusters in cosmochemistry and in the origin of life
Revista de Química, 1992 We present here the hypothesis of a possible relationship between metal atom clusters and the formation of organic molecules in the interstellar medium and on small bodies as a possible pathway to the origin of such molecules.
Silvio Dioses Castro, Richard Korswagen
doaj
Abundance Ratios of OH/CO and HCO+/CO as Probes of the Cosmic-Ray Ionization Rate in Diffuse Clouds
The Astrophysical Journal, 2023 The cosmic-ray ionization rate (CRIR, ζ _2 ) is one of the key parameters controlling the formation and destruction of various molecules in molecular clouds. However, the current most commonly used CRIR tracers, such as ${{\rm{H}}}_{3}^{+}$ , OH ^+ , and
Gan Luo +8 more
doaj +1 more source
Ph2SCCO: Ein vielseitiges CCO‐Fragment Transfer Reagenz
Angewandte Chemie, Volume 137, Issue 47, November 17, 2025.Die Synthese, Isolierung und vollständige Charakterisierung des bisher unbekannten Heterocumulens Ph2SCCO wird vorgestellt. Ausgehend von einfachen Vorläufern ermöglicht Ph2SCCO den direkten Zugang zu der wertvollen Klasse der (bicyclischen) α‐Cyclopropylcarbonylverbindungen.
Qiu Sun +5 more
wiley +1 more source
Ph2SCCO: A New Versatile CCO‐Fragment Transfer Reagent
Angewandte Chemie International Edition, Volume 64, Issue 47, November 17, 2025.The synthesis, isolation, and full characterization of the unprecedented heterocumulene Ph2SCCO is presented. Starting from simple precursors, Ph2SCCO provides direct access to the valuable class of (bicyclic) α‐cyclopropylcarbonyl compounds. It has emerged from our reactivity studies as an excellent reagent for the CCO fragment transfer in organic ...
Qiu Sun +5 more
wiley +1 more source