Results 61 to 70 of about 35,251 (238)

Traditional Chinese Medicine Properties and Microcalorimetry: BioScience Evaluation

open access: yesMed Research, Volume 1, Issue 1, Page 103-121, June 2025.
ABSTRACT The properties theory of traditional Chinese medicine (TCM), characterized by cold, hot, warm, and cool four properties, is fundamental to its development, distinguishing it from natural, botanical, and chemical medicines. However, despite its significance, there is no unified theoretical definition, bioscientific characterization, or ...
Qiang Li   +9 more
wiley   +1 more source

Relative Velocities between 13CO Structures within 12CO Molecular Clouds

open access: yesThe Astronomical Journal
Velocity fields of molecular clouds (MCs) can provide crucial information on the merger and split between clouds, as well as their internal kinematics and maintenance, energy injection and redistribution, and even star formation within clouds.
Lixia Yuan   +12 more
doaj   +1 more source

The Density of Molecules in Interstellar Space [PDF]

open access: yesNature, 1915
IN recent years evidence has been brought forward by several investigators1 indicating that light from distant stars suffers a slight attenuation in travelling through interstellar space. In particular a recent investigation by Jones2 assigns fairly definite numerical values to coefficients of attenuation corresponding to “photographic” and “visual ...
openaire   +3 more sources

Modulation of the Product Upon the Reaction of CO2 With Dimethylamine Cluster: A Topological Analysis of the Reaction Mechanism

open access: yesJournal of Computational Chemistry, Volume 46, Issue 13, May 15, 2025.
ABSTRACT The capture, activation, and reaction of carbon dioxide with dimethylamine (DMA) clusters have been investigated theoretically in the gas phase. The electronic structure of various compounds has been obtained using the density functional theory approach.
Mohammad Esmaïl Alikhani, Bernard Silvi
wiley   +1 more source

Structure Identification of CO Monolayer on Ag(111) Using Atomic Force Microscopy

open access: yesAdvanced Materials Interfaces, Volume 12, Issue 10, May 19, 2025.
Physisorption systems of CO molecules on metal surfaces have long been studied. Nondestructive analysis of weakly adsorbed systems on surfaces still remains a challenging task. In this study, the structure of the CO monolayer is successfully determined by directly visualizing individual CO molecules using atomic force microscopy (AFM).
Mitsuo Kimura   +2 more
wiley   +1 more source

Over the possible role of metal atom clusters in cosmochemistry and in the origin of life

open access: yesRevista 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  

Aliphatics and Aromatics in the Universe: The Pre-JWST Era

open access: yesThe Astrophysical Journal Supplement Series, 2023
The so-called “unidentified infrared emission” (UIE) features at 3.3, 6.2, 7.7, 8.6, and 11.3 μ m ubiquitously seen in a wide variety of astrophysical regions are generally attributed to polycyclic aromatic hydrocarbon (PAH) molecules.
X. J. Yang, Aigen Li
doaj   +1 more source

Microalgae: A Solution for Food Security and Multiplanetary Farming

open access: yesFood Frontiers, Volume 6, Issue 3, Page 1242-1251, May 2025.
ABSTRACT Human civilization is threatened by food insecurity and habitat loss owing to the cumulative effects of anthropogenic and natural factors. Thus, increasing food production while using fewer resources and exploring the potential of interstellar migration is essential.
Xiulan Xie, Jiasui Zhan, Maozhi Ren
wiley   +1 more source

Estimating Molecular Gas Content in Galaxies from Polycyclic Aromatic Hydrocarbon Emission

open access: yesThe Astrophysical Journal, 2023
Emission from polycyclic aromatic hydrocarbons (PAHs), a commonly used indicator of star formation activity in galaxies, also has the potential to serve as an effective empirical tracer of molecular gas.
Lulu Zhang, Luis C. Ho
doaj   +1 more source

Isotopic fractionation in interstellar molecules [PDF]

open access: yesProceedings of the International Astronomical Union, 2017
AbstractThe level of isotopic fractionation in molecules provides insights into their formation environments and how they formed. In this article, we review hydrogen and nitrogen isotopic fractionation in low-mass star-forming regions. Interstellar molecules are significantly enriched in deuterium.
openaire   +3 more sources

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