Oral calcium carbonate (0-5 g, pH 9-4) increased serum gastrin and gastric acid output with slight but insignificant change in serum calcium. A similar rise in serum calcium during an intravenous ...

如果你喜欢喝茶，尤其是喜欢喝红茶，那么应该会注意到：当泡的红茶晾凉之后，茶水表面会形成一层薄薄的茶膜，用勺子接触薄膜时，它就会像浮冰一样散裂开，而且勺子表面还会沾上棕色的物质。这个茶膜到底是怎么形成的呢？今天我们就来解决一些关于“茶膜”的问题。茶凉后 ...

A recent study published in Engineering has unveiled a novel approach to addressing two critical challenges in the construction materials sector: the ...