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MUSCLE PROTEIN SYNTHESIS IN VITRO IN CHICKS FED A LOW-PROTEIN DIET
Kita, K.,Kuzuya, Y.,Matsunami, S.,Okumura, J. Asian Australasian Association of Animal Productio 1996 Animal Bioscience Vol.9 No.2
Muscle protein synthesis in vitro was measured in chicks fed low-protein(10% CP) and control(20% CP) diets. Right leg muscles (M. gastrocnemius) were mounted on a support made of stainless steel to stretch in constant tension, whereas left leg muscles were unmounted. Both leg muscles were incubated in Dulbecco's modified Eagle's medium including L-[$4-^3H$] phenylalanine for 60 min to measure in vitro protein synthesis. There was no significant difference in fractional synthesis rate(FSR) of muscle protein between both dietary protein levels, whereas FSR with stretch in constant tension was significantly higher than that without constant tension due to an increase in the absolute synthesis rate(ASR) per unit RNA(the efficiency of RNA to synthesize protein). The ASR of muscle protein in chicks fed the control diet was significantly higher than that in the low-protein diet group.
Angle-Resolved Photoemission Spectroscopy on Mixed-Valent Sm1−xYxS
Keiichiro Imura,Tetsuya Hajiri,Masaharu Matsunami,Shin-ichi Kimura,Masaki Kaneko,Takahiro Ito,Yusuke Nishi,Noriaki K. Sato,Hiroyuki S. Suzuki 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.62 No.12
We report the results of angle-resolved photoemission spectroscopy (ARPES) on the Sm1−xYxSsystem, which exhibits a black-to-golden phase transition induced by yttrium substitution and by anapplied external pressure, in order to investigate the mechanism of this transition and the electronicstructure of both phases. The obtained ARPES spectrum of pure SmS (x = 0) indicates a bandinsulator, in which the shallowest electronic state is the Sm2+ 4f state at a binding energy of about0.4 eV. With increasing x, the top of the Sm2+ 4f band shifts to the lower binding energy side andtouches the Fermi level for x = 0.33. Because of the discontinuous reduction of the lattice constantin the vicinity of the black-to-golden phase transition (x 0.17), the golden phase induced byyttrium substitution is concluded to be an intermediate valence state.