Homemade ultrasound phantoms are cost-effective alternatives to commercial models but face longevity issues. This study investigated the effectiveness of various preservatives in extending the shelf life of homemade phantoms. Refrigeration proved most effective, with preservatives like household ble

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Isolation levels in database management systems provide a way to balance performance and correctness by offering various levels of data isolation. These levels determine the degree to which transactions can interact with each other, addressing conflicts such as dirty reads, non-repeatable reads, and

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