The use of a factorial design for the response exploration of a flow injection (FI) system is described and illustrated by FI spectrophotometric determination of paraquat. Variable response (absorbance) is explored as a function of the factors flow rate and length of the reaction coil. The present study was found to be useful to detect and estimate any interaction among the factors that may affect the optimal conditions for the maximal response in the optimization of the FI system, which is not possible with a univariate design. In addition, this study showed that factorial experiments enable economy of experimentation and yield results of high precision due to the use of the whole data for calculating the effects.
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http://dx.doi.org/10.1007/s002160051624 | DOI Listing |
Aquac Nutr
January 2025
Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
High levels of nitrogen compounds can lead to acute toxicity in aquatic organisms. Ammonia, a by-product of protein breakdown, is the most prevalent contaminant in freshwater environments. Increasing salinity in water sources can cause fluctuations in salinity levels within breeding ponds.
View Article and Find Full Text PDFNarra J
December 2024
Curtin School of Allied Health, Faculty of Health Sciences, Curtin University, Perth, Australia.
Research focus has transitioned from interprofessional collaborative practice among qualified health practitioners to the involvement of pre-qualifying students in practicing interprofessional education. It is essential to establish outcome measures to enhance the seamless integration of interprofessional education and collaborative practice. The aim of this study was to develop a culturally appropriate quality measure for assessing interprofessional education and collaborative practice for health practitioners and students in Indonesia by performing cross-cultural validation of the collaborative practice assessment tool (CPAT).
View Article and Find Full Text PDFJAMA
January 2025
Department of Preventive Medicine-Biostatistics and Informatics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Heliyon
January 2025
Faculty of Technical Sciences, University of Novi Sad, Novi Sad, Serbia.
The paper outlines the development and optimization of an aerodynamic device for a semi-trailer truck model to reduce aerodynamic drag force. The optimization procedure involves the selection of a basic aerodynamic device shape, using airfoil profiles, and refining its shape and position through established optimization techniques like Full Factorial Design and Response Surface Method within the Design of Experiments framework. The test subject is a 1:10 scale model of the semi-trailer truck.
View Article and Find Full Text PDFHeliyon
January 2025
Department of Horticulture, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan.
Melatonin is considered an effective bio-stimulant that is crucial in managing several abiotic stresses including drought. However, its potential mechanisms against drought stress in fragrant roses are not well understood. Here, we aim to investigate the role of melatonin on plants cultivated under drought stress (40 % field capacity) and normal irrigation (80 % field capacity).
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