Jan 1, 1991 · New values for the astronomical parameters of the Earth's orbit and rotation (eccentricity, obliquity and precession) are proposed for paleoclimatic research related to the …

Oct 1, 2020 · Quaternary ammonium compounds (Quats) are a large class of permanently charged cationic chemicals that are used in a variety of consumer and industria…

Mar 1, 2019 · Human impacts prior to the Industrial Revolution are not well constrained. We investigate whether the decline in global atmospheric CO2 concentration …

Quaternary International is the official journal of the International Union for Quaternary Research. and aims to publish high-quality and impactful articles covering significant advances across all …

Quaternary Science Reviews caters for all aspects of Quaternary science, and includes, for example, geology, geomorphology, geography, archaeology, soil science, palaeobotany, …

Quaternary Science Advances (QSA) is an international and fully Open Access journal supporting the rapid publication of peer-reviewed original research articles, short communications and …

Jan 1, 1991 · The spectral characteristics of pre-Quaternary climatic records, an example of the relationship between the astronomical theory and geo-sciences Astronomical theory of …

Oct 15, 2023 · Fluorinated quaternary ammonium covalent organic frameworks for selective and efficient removal of typical per- and polyfluoroalkyl substances

Mar 15, 2022 · A bis-quaternary ammonium salt was grafted to surfaces of a PEI nanofiltration membrane, resulting in ~4 times improved water flux combined with good Mg 2+ /Li + …

Oct 27, 2016 · A remaining challenge in the synthetic chemistry field is formation of all-carbon quaternary centers, a feature found in many natural products, particularly in spirocycle …