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Field measurement of spray drift from a spray application by UAV.
Pest Manag Sci
January 2025
Silsoe Spray Applications Unit Ltd, Bedford, UK.
Background: To use unmanned aerial vehicles (UAVs) to deliver pesticides, new data are needed to allow regulators to conduct risk assessments. A field trial was conducted to obtain spray drift data relating to ground deposits and airborne spray resulting from a spray application delivered by a small UAV.
Results: A 12 m width area was sprayed with four passes of the UAV and spray deposits were collected within the sprayed area and up to 50 m downwind.
The cell colony development is connected with the accumulation of embryogenesis-related proteins and dynamic distribution of cell wall components in in vitro cultures of Fagopyrum tataricum and Fagopyrum esculentum.
BMC Plant Biol
January 2025
Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, University of Silesia in Katowice, St. Jagiellonska 28, Katowice, 40-032, Poland.
Background: Due to the totipotency of plant cells, which allows them to reprogram from a differentiated to a dedifferentiated state, plants exhibit a remarkable regenerative capacity, including under in vitro culture conditions. When exposed to plant hormones, primarily auxins and cytokinins, explant cells cultured in vitro can undergo differentiation through callus formation. Protoplast culture serves as a valuable research model for studying these processes in detail.
View Article and Find Full Text PDFInvestigation of the Ternary System, Water/Hydrochloric Acid/Polyamide 66, for the Production of Polymeric Membranes by Phase Inversion.
Membranes (Basel)
January 2025
Postgraduate Program in Process and Technologies Engineering (PGEPROTEC), University of Caxias do Sul, Caxias do Sul 95070-560, RS, Brazil.
The starting point for the preparation of polymeric membranes by phase inversion is having a thermodynamically stable solution. Ternary diagrams for the polymer, solvent, and non-solvent can predict this stability by identifying the phase separation and describing the thermodynamic behavior of the membrane formation process. Given the lack of data for the ternary system water (HO)/hydrochloric acid (HCℓ)/polyamide 66 (PA66), this work employed the Flory-Huggins theory for the construction of the ternary diagrams (HO/HCℓ/PA66 and HO/formic acid (FA)/PA66) by comparing the experimental data with theoretical predictions.
View Article and Find Full Text PDFAmid a boom in organ donation, a heightened focus on cancer risk in transplant recipients: Immunosuppression, transmissible infections and tumors, and improved long-term survival among organ recipients are requiring more vigilance for skin cancers and other malignancies.
Cancer Cytopathol
February 2025
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