Demonstration of a fully integrated superconducting receiver with a 2.7 THz quantum cascade laser.

We demonstrate for the first time the integration of a superconducting hot electron bolometer (HEB) mixer and a quantum cascade laser (QCL) on the same 4-K stage of a single cryostat, which is of particular interest for terahertz (THz) HEB/QCL integrated heterodyne receivers for practical applications. Two key issues are addressed. Firstly, a low power consumption QCL is adopted for preventing its heat dissipation from destroying the HEB's superconductivity.

[Cloning and tissue expression of CAST transcript Ⅱ in goat].

Calpastatin (CAST) gene is closely related with meat quality in livestock and poultry. Based on the bovine and ovine mRNA sequences, the cDNA of CAST Ⅱ gene in goat was amplified successfully for the first time by using RACE-PCR. Results showed that CAST Ⅱ of goat was 2474 bp in length with an open reading frame (ORF) 1695 bp long and encoded 564 amino acids, and there were four conserved domains and one conserved seven-peptide domain in amino acids sequences.

Molecular cloning and characterization of caprine calpastatin gene.

Calpastatin (CAST) is an important gene for meat quality traits in livestock and poultry. The cDNA of caprine CAST gene was amplified for the first time using RACE-PCR. Results showed the full-length cDNA of caprine CAST gene (Accession no.