Abstract: The present invention is a cardioplegic solution that demonstrates better stability in pH, particulate matter formation and osmolality but at the same time demonstrates superior ability to preserve heart functions than currently available cardioplegic solutions. The cardioplegic solution comprises potassium (K+), magnesium (Mg2+), sodium (Na+), chloride (Cl?), gluconate, acetate, sulfate (SO42?), THAM and mannitol dissolved in water.

Abstract: A pet combination house includes a housing and a connecting unit. The housing includes a plurality of plates, with a folding line being formed at a connection of two plates. The plates are folded upward along the folding line and are connected together to construct the housing. Some of the plates have a side respectively provided with a fastening member. The fastening members of the plates are detachably combined together in pairs when the housing is disposed at the three-dimensional state. At least one of the plates is provided with an opening. At least one of the plates has a face provided with a plurality of apertures. The connecting unit includes a plurality of retaining members mounted on the plates and aligning with the apertures, and a plurality of connecting members mounted in the apertures and retained by the retaining members.