The stability of the linings of packaging that is in contact with the goods stored has been of major concern during decades of the development of packaging materials. In this work, an attempt was undertaken to assess the applicability of using two bioassays (Microtox and XenoScreen YES/YAS) in estimating the stability of packaging (cans, caps, multilayer material) and the impact of their degradation on the toxicity of some simulated media. The assessment of the impact of packaging storage conditions (temperature, disinfection, preservation, extracting and washing solvents) was planned and performed with i) regression modeling of the experimental effects on the ecotoxicity readings, ii) ANOVA and MANOVA estimation of the experimental conditions as significant factors affecting the toxicity results and iii) FTIR analysis of the packages. It is shown that the effects of temperature and extraction solvents could be quantitatively assessed by the agreement between all methods applied. It can be stated that temperature and acidity as well as the alcohol content in the sensitive media have the greatest impact on the toxicity of the extract and thus on the stability of the internal lining and the extractability of xenobiotics.
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http://dx.doi.org/10.1016/j.envres.2018.05.004 | DOI Listing |
J Phys Chem Lett
January 2025
College of Electronic and Optical Engineering & College of Flexible Electronics (Future Technology), State Key Laboratory of Organic Electronics and Information Displays, Nanjing University of Posts and Telecommunications, Nanjing, Jiangsu 210023, P.R. China.
Heat dissipation has become a critical challenge in modern electronics, driving the need for a revolution in thermal management strategies beyond traditional packaging materials, thermal interface materials, and heat sinks. Cubic boron arsenide (c-BAs) offers a promising solution, thanks to its combination of high thermal conductivity and high ambipolar mobility, making it highly suitable for applications in both electronic devices and thermal management. However, challenges remain, particularly in the large-scale synthesis of a high-quality material and the tuning of its physical properties.
View Article and Find Full Text PDFBehav Anal Pract
December 2024
Department of Special Education and Rehabilitation Counseling, Utah State University, Logan, UT USA.
Unlabelled: Children with autism spectrum disorder (ASD) may have difficulty engaging in cooperative communication during classroom learning center activities with peers. This study examined the effects of using an activity schedule intervention package on the rate of contextually appropriate cooperative exchanges for children with ASD during classroom learning centers. In this study, children with ASD worked together in participant partnerships to complete learning center activities.
View Article and Find Full Text PDFBehav Anal Pract
December 2024
The New England Center for Children, 33 Turnpike Road, Southborough, MA 01772 USA.
Unlabelled: We evaluated the effects of a video modeling training package on the implementation of graduated guidance instruction for three caregivers of young children with autism spectrum disorder. The video model was narrated and featured a generic model of graduated guidance that was different from the tasks used in the study. One of the caregiver-child dyads participated via telehealth during the COVID-19 pandemic.
View Article and Find Full Text PDFVeg Hist Archaeobot
August 2024
School of Archaeology, University of Oxford, Oxford, UK.
Unlabelled: The R package CropPro is an open-access resource to classify archaeobotanical samples as products and by-products of different stages of the crop processing sequence for large-seeded cereal and pulse crops in south west Asia, Europe and other Mediterranean regions. It builds on ethnographic research and analysis conducted by Jones (Plants and ancient man: studies in palaeoethnobotany. Balkema, Rotterdam, pp 43-61, 1984), (J Archaeol Sci 14:311-323, 1987), (Circaea 6:91-96, 1990) and a modified method by Charles (Environ Archaeol 1:111-122, 1998).
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Division of Biotechnology, Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu 641114, India. Electronic address:
Conventional food packaging is creating a significant cause of environmental hazards, posing challenges in disposal and recycling. Lignocellulose fibers possess remarkable biodegradable properties and can be modified or blended with other polymers. Thus, using lignocellulose biocomposite films derived from barley, a renewable source can mitigate and potentially transform into sustainable, innovative packaging material in the food sectors.
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