drugs used to treat hiv . [ ] the structure of ritonavir , a protease inhibitor based on a peptide and containing three peptide bonds , is shown on the right. as this drug resembles the protein that is the substrate of the hiv protease, it competes with this substrate in the enzyme's active site. enzyme...
) lead, bismuth, selenium, tellurium or calcium containing (class / ) over percent sulfur, over percent phosphorus or sulfur or phosphorus added in any amount to promote machinability (class / ) copper containing (class / ) over percent nickel containing (class / ) one percent or more carbon containing...
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this safetygram, many of the same safety precautions apply, whether the product is in the gas or liquid state. each cryogenic liquid has its own unique properties. potential hazards stem from the following common properties: . all cryogenic liquids are extremely cold. cryogenic liquids and their vapors...
particularly skilled at developing emulsions, as well as working with dispersions, oils and syrups. our liquids can be filled into either pet or glass bottles, which can be nitrogen gas flushed to prevent oxidisation. our fill sizes for liquids range from ml up to litre. we can also make some liquids in...
) of food by heating it with hot air. a secondary objective of baking is to preserve the food, by destruction of the microorganisms and reduction in the water activity at the surface of the food. however, the shelf-life of most baked foods is limited, unless products are refrigerated or packaged. baking...
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