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These include an alternative test for acute oral toxicity that has replaced the LD50 test (median lethal dose), which used as many as 200 animals per test, with the Up-and-Down Procedure (UDP), which uses only 7 animals on average per test (NIEHS 2001; Organisation for Economic Co-operation and Development 2008).
But the first text-based adventure game was Colossal Cave Adventure, which used as much memory as a modern pocket handkerchief.
Perhaps the best currently available barometer is a study by Alex Steinbergh, a principal of Resource Capital Group, a large landlord in Cambridge, which used as a sample the 242 deregulated units in the 15 buildings the company owns.
We also evaluated the effect of non- ionic surfactant, Brij-35, which used as mobile phase modifier in MLC, on CL emission.
In this work, collagen hydrogels were soaked into oxidized alginate solution which used as macromolecular cross-linker to prepare the cross-linked hydrogels.
Figure 1 A1-A4 shows the flowchart of fabrication of the NiO films on glass substrates, which used as gas sensing materials.
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The principle of this BioFuel Cell, which uses as fuel both glucose and urea and is detailed in Materials and Methods, is summarized in Figure 5.
Post, which used it as a cover in 1928.
He later sold it to Qantas, which used it as the basis for Jetstar.
American International Airways, which used Atlantic City as a hub for Florida flights, went bankrupt in 1986.
My father was a vice president of Porsche Audi, which used racecars as a marketing tool for their road models.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com