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Exploring the co-occurrence of microplastics, DOM and DBPs inside PVC pipes undergoing chlorination by correlation analysis and unsupervised learning.
Chemosphere
January 2025
Department of Civil and Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore; NUS Environmental Research Institute, National University of Singapore, 5A Engineering Drive 1, 117411, Singapore. Electronic address:
Drinking water distribution systems face a multifaceted emerging concern, including in situ microplastic (MP) generation, chemical leaching from plastic pipes, and the formation of disinfection by-products (DBPs). This study investigated the co-release of MPs and chemical leachates from polyvinyl chloride (PVC) pipes exposed to different chlorine concentrations on a lab scale, as well as the subsequent formation of DBP. Results highlighted significant evidence of PVC-derived dissolved organic matter (PVC-DOM) and microplastic (PVC-MP) leaching at higher chlorine concentrations.
View Article and Find Full Text PDFListening to the voices of adolescents with inflammatory bowel disease after returning to school: a qualitative study.
Arch Dis Child
January 2025
Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, People's Republic of China.
Background: The prevalence of inflammatory bowel disease (IBD) among Chinese adolescents has continued to increase in recent years. Adolescents with IBD interrupted their schooling due to the diagnosis and treatment of the disease. And when the condition stabilises, they will return to school.
View Article and Find Full Text PDFSubstantial Impact of Later-Life Depression Among Community Older Adults on the Family Caregivers' Burden in the Home Care Setting of Chiang Mai, Northern Thailand.
Medicina (Kaunas)
January 2025
Department of Global Health Research, Graduate School of Medicine, Juntendo University, Tokyo 113-8421, Japan.
: Depression is a common geriatric problem globally. It is particularly burdensome in low- and middle-income countries, where care for older people mainly relies on the family in the absence of long-term care facilities. This study aimed to assess the level of caregivers' burden among family caregivers who are taking care of older persons with depression in the home care setting within the communities of Chiang Mai, Northern Thailand.
View Article and Find Full Text PDFEconomic policy uncertainty and corporate innovation-empirical evidence from Chinese pharmaceutical listed companies.
Front Public Health
January 2025
School of Business Administration, Shenyang Pharmaceutical University, Shenyang, China.
Introduction: Under the background that economic policy uncertainty tends to be normal, the innovation behavior of enterprises can cope with the cost impact brought by economic policy uncertainty.
Methods: Based on the relevant data of China's A-share pharmaceutical listed companies from 2015 to 2022, this paper empirically studied the relationship between economic policy uncertainty and firm innovation by using fixed-effect model, intermediary model, instrumental variable method and two-step method, and investigated the mechanism effects of financialization, executive compensation and government subsidies.
Conclusion: Economic policy uncertainty significantly increases the innovation intensity of enterprises.
Medical knowledge and traditional healing practices of the Bororo: reports from an expedition to the interior of Mato Grosso, Brazil, 1911.
Hist Cienc Saude Manguinhos
January 2025
Docente, Universidade Estadual de Goiás. Anápolis - GO - Brasil.
This text analyzes the medical reports of doctor Murillo de Campos on an expedition by the Rondon Commission to the Brazilian state of Mato Grosso in 1911. Originally published as a scientific article, the report begins by detailing the nosological profile in the places visited and the customs of the inhabitants. It then presents a detailed fieldwork report into the healing practices of the Bororo indigenous people in eastern Mato Grosso.
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