Publications by authors named "P R Brink"
Increased pharmaceutical usage has led to their widespread presence in aquatic environments, resulting in concerns regarding their potential environmental impacts. Antidepressants, particularly selective serotonin reuptake inhibitors (SSRIs) like citalopram, are frequently detected in European surface waters. Acute laboratory studies have demonstrated that citalopram can inhibit algal growth, immobilise Daphnia magna, and may result in foot detachment (i.
View Article and Find Full Text PDFMany freshwater systems are continuously exposed to waste streams like municipal wastewater and agricultural runoff, leading to exposure to chemicals that can cause mortality and behavioural changes in aquatic organisms. While research has advanced our understanding of pesticide effects on behaviour of aquatic organisms, the impacts of pharmaceuticals are less understood. Psychopharmaceuticals are particularly interesting because they can act on nervous systems, potentially affecting the behaviour of aquatic organisms.
View Article and Find Full Text PDFCommercial ethylene epoxidation catalysts consist of α-alumina supported Ag particles and usually contain a mixture of promoters. High selectivity catalysts typically include a small amount of rhenium species. We studied a series of Ag catalysts promoted with Re loadings up to 4 at% (Re/(Re + Ag)), which is intentionally higher than in optimized commercial catalysts to facilitate characterization and to amplify the influence on catalysis.
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- Health inequities affect 2SLGBTQIA+ individuals in palliative care, with unique socio-cultural, psychological, and systemic challenges hindering their access to services.
- A literature review revealed 31 studies focused on palliative care for sexual and gender minorities, showing a lack of clarity in terminology and a shortage of research on transgender and gender non-conforming needs.
- Key findings included discrimination in care settings, disenfranchised grief among care partners, and a significant need for enhanced training for healthcare providers to better serve the 2SLGBTQIA+ community.
Article Synopsis
- Pyrethroid insecticides, like lambda-cyhalothrin, are commonly used in agriculture, leading to their detection in aquatic ecosystems and potential risks for non-target organisms, especially in sub-tropical areas where data is limited.
- A study demonstrated that lambda-cyhalothrin dissipates rapidly in sub-tropical aquatic environments, with only a small percentage remaining after just a few days, indicating faster degradation than in temperate regions.
- While certain zooplankton species showed decreased abundance at higher concentrations, others experienced population increases, and overall, the zooplankton community displayed a notable no observed effect concentration (NOEC) of 9 ng/L for lambda-cyhalothrin, suggesting different sensitivity levels between