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SOLOMON: a method for splitting a sample into equivalent subsamples in factor analysis.
Publication Type: Academic Journal
Source(s): Behavior research methods [Behav Res Methods] 2022 Dec; Vol. 54 (6), pp. 2665-2677. Date of Electronic Publication: 2021 Dec 16.
Abstract: Nowadays, exploratory and confirmatory factor analyses are two important consecutive steps in an overall analysis process. The overall analysis should start with an exploratory factor analysis that explores the data and establishes a hypothesis for the...
Photoinduced production of substances with humic-like fluorescence, upon irradiation of water samples from alpine lakes.
Publication Type: Academic Journal
Source(s): Chemosphere [Chemosphere] 2023 Apr; Vol. 319, pp. 137972. Date of Electronic Publication: 2023 Jan 27.
Abstract: Evidence is here provided that irradiation of some lake water samples can trigger the formation of fluorophores with humic-like properties, at the same time increasing water absorbance. This phenomenon is the opposite of photobleaching, which is often ...
Fluorescent spectroscopy paired with parallel factor analysis for quantitative monitoring of phenanthrene biodegradation and metabolite formation.
Publication Type: Academic Journal
Source(s): Chemosphere [Chemosphere] 2023 Mar; Vol. 316, pp. 137771. Date of Electronic Publication: 2023 Jan 05.
Abstract: Polycyclic aromatic hydrocarbons (PAHs) are a class of environmental contaminants released into the environment from both natural and anthropogenic sources that are associated with carcinogenic, mutagenic, and teratogenic health effects. Many remediati...
Source apportionment of ambient PM 2.5 in an industrialized city using dispersion-normalized, multi-time resolution factor analyses.
Publication Type: Academic Journal
Source(s): Environmental pollution (Barking, Essex : 1987) [Environ Pollut] 2023 Apr 15; Vol. 323, pp. 121281. Date of Electronic Publication: 2023 Feb 15.
Abstract: Ambient fine particulate matter (PM 2.5 ) data were collected in the lower City of Hamilton, Ontario to apportion the sources of this pollutant over an 18-month period. Hamilton has complex topographical features that may result in worsened air polluti...
Scale length does matter: Recommendations for measurement invariance testing with categorical factor analysis and item response theory approaches.
Publication Type: Academic Journal
Source(s): Behavior research methods [Behav Res Methods] 2022 Oct; Vol. 54 (5), pp. 2114-2145. Date of Electronic Publication: 2021 Dec 15.
Abstract: In social sciences, the study of group differences concerning latent constructs is ubiquitous. These constructs are generally measured by means of scales composed of ordinal items. In order to compare these constructs across groups, one crucial require...
A constrained factor mixture analysis model for consistent and inconsistent respondents to mixed-worded scales.
Publication Type: Academic Journal
Source(s): Psychological methods [Psychol Methods] 2022 Aug; Vol. 27 (4), pp. 667-702. Date of Electronic Publication: 2021 Apr 08.
Abstract: Mixed-worded scales require a more careful reading and answering process than scales with only one type of wording. The present study is about the unintended consequences of using such scales, because typically, not all respondents answer positively an...
Characterising the interactions between Cu(II) and fulvic acid subcomponents using differential fluorescence spectroscopy combined with parallel factor analysis.
Publication Type: Academic Journal
Source(s): Environmental science and pollution research international [Environ Sci Pollut Res Int] 2022 Dec; Vol. 29 (59), pp. 88925-88937. Date of Electronic Publication: 2022 Jul 16.
Abstract: Fulvic acid (FA) consists of various organic compounds that interact with metals in the aquatic environment. Interactions between subcomponents (FA 3 , FA 5 , FA 7 , FA 9 and FA 13 ) of FA and Cu(II) were investigated using fluorescence quenching titra...
Spatial patterns and driving factor analysis of recommended nitrogen application rate for the trade-off between economy and environment for maize in China.
Publication Type: Academic Journal
Source(s): Journal of environmental management [J Environ Manage] 2022 Nov 15; Vol. 322, pp. 116099. Date of Electronic Publication: 2022 Sep 01.
Abstract: Appropriate nitrogen (N) application increases crop yield, while its unreasonable application results in environmental problem. Determining the appropriate N application rate is the key to sustainable development. Here, the denitrification-decompositio...
Critical evaluation of the interaction between fluorescent dissolved organic matter and Pb(II) under variable environmental conditions.
Publication Type: Academic Journal
Source(s): Chemosphere [Chemosphere] 2022 Nov; Vol. 307 (Pt 2), pp. 135875. Date of Electronic Publication: 2022 Aug 03.
Abstract: Dissolved organic matter (DOM) can strongly influence the behavior and risk of metal pollutants in aquatic ecosystems. However, a comprehensive study on the effects of DOM level and environmental factors on the binding of DOM with Pb(II) is lacking. Th...
Photochemical and microbial transformation of particulate organic matter depending on its source and size.
Publication Type: Academic Journal
Source(s): The Science of the total environment [Sci Total Environ] 2023 Jan 20; Vol. 857 (Pt 2), pp. 159506. Date of Electronic Publication: 2022 Oct 17.
Abstract: Particulate organic matter (POM) in water systems can be converted into dissolved organic matter (DOM) through various pathways depending on its properties and transformation. Thus, information on the behavior of POM is crucial for fully understanding ...