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Research on climate change, water quality, and their relationship is critical for human survival and development. It can help better mitigate climate change and contribute to appropriate water quality management strategies under uncertain challenges in the future. In this study, bibliometric analysis was used to provide a comprehensive review of the research field of climate change and water quality from 1990 to 2022. The extraction of documents was carried out from the Web of Science Core Collection database. VOSviewer, Bibliometrix R-package, and CiteSpace were used for analysis and scientific mapping. The results show that China, the United States, and Canada are the main countries driving this field, and China and the United States closely cooperate. It was also found that the areas of water eutrophication and climate change research had a close relationship and were the current research hotspots. Finally, it is revealed that the areas of sustainable development of climate change and water quality management, model simulation and method improvement between climate change and water quality, groundwater quality risk assessment driven by climate change, the impact of water on climate change, and expanding the research scale of the relationship between climate change and water quality will be the future research trends in this field. [ABSTRACT FROM AUTHOR]

Methamidophos is one of the most widely used organophosphorus insecticides usually detectable in the environment. A facultative methylotroph, Hyphomicrobium sp . MAP-1, capable of high efficiently degrading methamidophos, was isolated from methamidophos-contaminated soil in China. It was found that the addition of methanol significantly promoted the growth of strain MAP-1 and enhanced its degradation of methamidophos. Further, this strain could utilize methamidophos as its sole carbon, nitrogen and phosphorus source for growth and could completely degrade 3,000 mg l−1 methamidophos in 84 h under optimal conditions (pH 7.0, 30°C). The enzyme responsible for methamidophos degradation was mainly located on the cell inner membrane (90.4%). During methamidophos degradation, three metabolites were detected and identified based on tandem mass spectrometry (MS/MS) and gas chromatography-mass spectrometry (GC–MS) analysis. Using this information, a biochemical degradation pathway of methamidophos by Hyphomicrobium sp. MAP-1 was proposed for the first time. Methamidophos is first cleaved at the P–N bond to form O,S-dimethyl hydrogen thiophosphate and NH3. Subsequently, O,S-dimethyl hydrogen thiophosphate is hydrolyzed at the P–O bond to release –OCH3 and form S-methyl dihydrogen thiophosphate. O,S-dimethyl hydrogen thiophosphate can also be hydrolyzed at the P–S bond to release –SCH3 and form methyl dihydrogen phosphate. Finally, S-methyl dihydrogen thiophosphate and methyl dihydrogen phosphate are likely transformed into phosphoric acid. [ABSTRACT FROM AUTHOR]

Investigated early development of temperament across three cultures: People’s Republic of China (PRC), United States of America (US), and Spain, utilizing a longitudinal design (assessments at 3, 6, and 9 months of age). Selection of these countries presented an opportunity to conduct Eastern–Western/Individualistic–Collectivistic comparisons. The greatest number of significant differences (i.e., involving more temperament dimensions) was anticipated for the US (Western/Individualistic) and PRC (Eastern/Collectivistic) comparisons. The US sample included 66, the PRC group 69, and the Spanish sample, 60 mothers, all of whom completed the Infant Behavior Questionnaire (IBQ) 3 times, when their infants were 3, 6, and 9 months of age. Results related to mean group differences were generally consistent with our hypotheses, demonstrating a greater number of significant differences for US versus PRC, with fewer differences observed for US and Spain. Analyses addressing developmental changes in temperament indicated patterns consistent with a priori expectations and cross-cultural differences. [ABSTRACT FROM AUTHOR]