Results 11 to 20 of about 616 (150)

Computational Study of the Reactions of Interstellar Molecules: CH2 Reacting with HCNO and HNCO [PDF]

open access: yes, 2023
Association reactions among small molecules known to exist in the interstellar medium are interesting for theories on the origins of life. A screening of thousands of reactions, using machine learning estimates of energy barriers, identified the reaction
Hongchen , Ji   +2 more
core   +2 more sources

The potential of NO+ and O2+• in switchable reagent ion proton transfer reaction time‐of‐flight mass spectrometry

open access: yesMass Spectrometry Reviews, Volume 42, Issue 5, Page 1688-1726, September/October 2023., 2023
Abstract Selected ion flow tube mass spectrometry (SIFT‐MS) and proton transfer reaction mass spectrometry with switchable reagent ion capability (PTR+SRI‐MS) are analytical techniques for real‐time qualification and quantification of compounds in gas samples with trace level concentrations.
Oliver Hegen   +3 more
wiley   +1 more source

Pharmacology, prevalence in Germany, and analytical data of cyclobutylmethyl‐ and norbornylmethyl‐type synthetic cannabinoid receptor agonists

open access: yesDrug Testing and Analysis, Volume 15, Issue 4, Page 408-425, April 2023., 2023
Six exploratory SCRAs with CBM and NBM side chains circumvented the German NpSG 2019–2021 with Cumyl‐CBMICA the most prevalent. Potency and affinity at the CB1 receptor are sensitive to changes in the core (indole << indazole < γ‐carbolinone) and the side chain (CBM << NBM).
Benedikt Pulver   +12 more
wiley   +1 more source

An outbreak of tuberculosis in endangered northern pig‐tailed macaques (Macaca leonina) and milu deer (Elaphurus davidianus) from a zoo in China

open access: yesVeterinary Medicine and Science, Volume 9, Issue 2, Page 992-998, March 2023., 2023
Zoonotic tuberculosis (TB) affects humans and domesticated and wild animals. Milu deer and northern pig‐tailed macaque was found to be infected with Mycobacterium bovis (M. bovis) and Mycobacterium tuberculosis (M. tb), respectively by multiple PCR and DNA test.
Yingyu Chen   +9 more
wiley   +1 more source

Growth and Evolution of Secondary Volcanic Atmospheres: 2. The Importance of Kinetics

open access: yesJournal of Geophysical Research: Planets, Volume 128, Issue 3, March 2023., 2023
Abstract Volcanism is a major and long‐term source of volatile elements such as C and H to Earth's atmosphere, likely has been to Venus's atmosphere, and may be for exoplanets. Models simulating volcanic growth of atmospheres often make one of two assumptions: either that atmospheric speciation is set by the high‐temperature equilibrium of volcanism or
Philippa Liggins   +3 more
wiley   +1 more source

C1N1 Thin Films from Guanine Decomposition Fragments

open access: yesAdvanced Materials Interfaces, Volume 10, Issue 6, February 23, 2023., 2023
Guanine decomposition fragments allow preparing homogenous and semi‐transparent C1N1 thin films on top of different substrates in a simplified chemical vapor deposition. The films act as p‐type semiconductors and have good photoresponse to visible light and are suitable catalysts for the hydrogen evolution reaction.
Mária Jerigová   +6 more
wiley   +1 more source

Correlated Metals Transparent Conductors with High UV to Visible Transparency on Amorphous Substrates

open access: yesAdvanced Materials Interfaces, Volume 10, Issue 1, January 5, 2023., 2023
Ca2Nb3O10 nanosheets with different buffer layers promote the growth of high‐quality 4d metallic correlated SrMoO3 and SrNbO3 films on amorphous transparent fused silica substrates. As a result, SrMoO3 and SrNbO3 transparent conductors with high conductivity and high optical transparency in the UV‐Vis spectra are achieved in technologically relevant ...
Phu Tran Phong Le   +8 more
wiley   +1 more source

Electronegativity at the Shock Front

open access: yesPropellants, Explosives, Pyrotechnics, Volume 48, Issue 1, January 2023., 2023
Abstract In this work, a scale for pressure‐adapted atomic electronegativity is used to make general predictions of bond polarity in H‐, C‐, N‐ and O‐based compounds experiencing shock conditions. The qualitative picture that emerges is one of increasing polarity of several bonds common in energetic materials.
Martin Rahm
wiley   +1 more source

Study of the Variability of the Chemical Profile, and Biological Activity Approaches of Hedychium coronarium J. Koenig Essential Oil from Different Habitats of Uttarakhand, India

open access: yesJournal of Food Quality, Volume 2023, Issue 1, 2023., 2023
The objective of the current study was to evaluate the altitudinal variability in chemical compounds, nematicidal, insecticidal, herbicidal, and antifungal activity of the essential oils of H. coronarium collected from four different habitats of Tarai and Kumaun region of Uttarakhand. Essential oils were hydro‐distilled from rhizomes of H.
Sushila Arya   +11 more
wiley   +1 more source

The two faces of cyanide: an environmental toxin and a potential novel mammalian gasotransmitter

open access: yesThe FEBS Journal, Volume 289, Issue 9, Page 2481-2515, May 2022., 2022
Role of low‐ and high‐cyanide concentration in mammalian cell function regulation in health and disease. At low (nanomolar to low micromolar) concentrations, cyanide exerts beneficial and regulatory roles. At medium concentrations, the effect of cyanide includes the regulation of NMDA receptors and the modulation of intracellular calcium handling.
Karim Zuhra, Csaba Szabo
wiley   +1 more source

Home - About - Disclaimer - Privacy