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Overwrapping Bivalved Casts: Does the Material Matter?
J Pediatr Orthop
October 2024
Department of Orthopaedic Surgery, Montefiore Einstein.
Background: Circumferential integrity of bivalved casts (cut twice longitudinally) can be restored by overwrapping with different materials. This study compared the mechanical properties of solid casts and bivalved casts overwrapped with semirigid fiberglass (SF), elastic bandages (EB), and rigid fiberglass (RF) using an overwrapped-bivalved cast-bone fracture (OBCBF) model.
Methods: This study used an MTS Bionix Servohydraulic system to test properties of OBCBF models in 4 conditions: intact Control made of RF (not bivalved or overwrapped), a Rigid overwrapped model made of a Control bivalved and overwrapped with RF, a Semirigid overwrapped model made of a Control bivalved and overwrapped with SF, and an Elastic model made of a Control bivalved and overwrapped with EB.
Pediatric parenteral nutrition and hydroperoxide toxicity: Evaluation of the effectiveness of photoprotection medical devices.
Photochem Photobiol
September 2024
Nantes Université, CHU Nantes, Pharmacie, Nantes, France.
Article Synopsis
- Exposure to light during parenteral nutrition (PN) leads to the formation of harmful hydroperoxides (HPO), which can be particularly dangerous for pediatric patients.
- A study evaluated the effectiveness of using photoprotection devices, such as opaque syringes and overwraps, to minimize HPO formation when PN is exposed to light.
- Results showed that using opaque syringes reduced HPO by 14% and opaque overwraps by 40% after 420 minutes of light exposure, suggesting that photoprotection during PN administration is advisable, especially for vulnerable patients.
Metabolomics and bioinformatic analyses to determine the effects of oxygen exposure within longissimus lumborum steak on beef discoloration.
J Anim Sci
January 2023
Department of Animal Sciences, Oklahoma State University, Stillwater, OK 74078, USA.
Meat discoloration starts from the interior and spreads to oxymyoglobin layer on the surface. The effects of oxygen exposure within a steak on the metabolome have not been evaluated. Therefore, the objective of this study was to evaluate the impact of oxygen exposure on the metabolome of the longissimus lumborum muscle.
View Article and Find Full Text PDFOptimization of the Winding Layer Structure of High-Pressure Composite Overwrapped Pressure Vessels.
Materials (Basel)
March 2023
School of Mechanical, Electrical & Information Engineering, Shandong University, Weihai 264209, China.
The large thickness COPV is designed by netting theory and the finite element simulation method, but the actual performance is low and the cylinder performance still cannot be improved after increasing the thickness of the composite winding layer. This paper analyzes the reasons for this and puts forward a feasible solution: without changing the thickness of the winding layer, the performance of COPV can be effectively increased by increasing the proportion of annular winding fiber. This method has been verified by tests and is supported by theory.
View Article and Find Full Text PDFThe biological effect of a beef-derived on beef steaks during chilled storage.
Food Sci Nutr
February 2023
Lab of Beef Processing and Quality Control, College of Food Science and Engineering Shandong Agricultural University Tai'an China.
The aim of this study was to investigate the biological inhibiting effect of a beef-derived (RS-25) on the spoilage of beef steaks in overwrapped packaging during the 12 days of storage at 4°C. Beef quality as well as microbial indicators were determined at different intervals during the storage after the inoculation of RS-25 at the 6 log CFU/g, and the high-throughput sequencing was applied to investigate the changes of microbial community structure during the storage. The inoculation of RS-25 on beef had no effect ( > .
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