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Effects of water and sediment chemistry variables on aquatic macroinvertebrate community structuring in a subtropical Austral river system.
Environ Sci Pollut Res Int
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South African Institute for Aquatic Biodiversity, Makhanda, 6140, South Africa.
Riverine physical and chemical characteristics are influencing ecosystem integrity while shaping and impacting species richness and diversity. Changes in these factors could potentially influence community structuring through competition, predation and localised species extinctions. In this study, eight sampling sites over multiple seasons were assessed along the streams draining the City of Nelspruit, South Africa, to examine river health based on water and sediment quality, while using macroinvertebrates as bioindicators for pollution.
View Article and Find Full Text PDFWater quality assessment of Johor River Basin, Malaysia, using multivariate analysis and spatial interpolation method.
Environ Sci Pollut Res Int
January 2025
Center for Environmental Sustainability and Water Security (IPASA), Research Institute for Sustainable Environment (RISE), Universiti Teknologi Malaysia, 81310, Johor Bahru, Johor, Malaysia.
In the Johor River Basin, a comprehensive analysis was conducted on 24 water environmental parameters across 33 sampling sites over 3 years, encompassing both dry and wet seasons. A total of 396 water samples were collected and analyzed to calculate the Water Quality Index (WQI). To further assess water quality and pinpoint potential pollution sources, multivariate techniques such as principal component analysis (PCA) and cluster analysis (CA), alongside spatial analysis using inverse distance weighted (IDW) interpolation, were employed.
View Article and Find Full Text PDFDisconnects between provider network directories and patient preferences.
Am J Manag Care
December 2024
Division of Health Services Management and Policy, College of Public Health, The Ohio State University, 1841 Neil Ave, Cunz Hall 208, Columbus, OH 43210-1132. Email:
Objectives: The question of what providers one has access to under their insurance coverage is crucial for patients in managed care. This study sought to examine information displayed in online provider directories and whether this information matched consumer preferences.
Study Design: A national survey (N = 4007) paired with an analysis of online provider network directories.
Families of adults with idiopathic hypersomnia and narcolepsy: psychosocial impact and contribution to symptom management.
J Clin Sleep Med
December 2024
Patient advocate.
Study Objectives: This study examined the impact of central disorders of hypersomnolence (CDH) on family members of adult patients, the ways family members assist with managing CDH, and family members' utilization and satisfaction with information and support.
Methods: Participants were adults (N=100) with an adult family member diagnosed with idiopathic hypersomnia or narcolepsy. They completed a survey which included the Family Reported Outcome Measure (FROM-16), checklists, satisfaction ratings, and open-response questions.
Environmental impact of an acid-forming alum shale waste rock legacy site in Norway.
Environ Sci Process Impacts
January 2025
Environmental Chemistry Section, Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Aas, Norway.
Alum shale formations in Scandinavia are generally enriched in uranium (U) and, when exposed to air and water, may produce acidic rock drainage (ARD), releasing potentially harmful elements into the environment. Taraldrud is a legacy site in southeast Norway where approx. 51 000 m of alum shale was deposited in the 1980s-1990s.
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