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Obi, T.,Matsumoto, M.,Miyazaki, K.,Kitsutaka, K.,Tamaki, M.,Takase, K.,Miyamoto, A.,Oka, T.,Kawamoto, Y.,Nakada, T. Asian Australasian Association of Animal Productio 2010 Animal Bioscience Vol.23 No.9
Comparisons of properties between skeletal ryanodine receptor 1 (sRyR1)-heterozygous-mutated and normal types of meat were carried out in pigs using PSE (pale, soft and exudative) meat found during the butchering process. All samples considered to be PSE meat showed irregular running and disorder of the muscle fibers and a wider inter-fiber space upon light microscopic observation. Electron microscopy revealed disintegration, twisting, and disorder of the myofibril arrangement and elimination of the Z line in PSE meat, compared with normal meat. Meat property tests demonstrated greater decreases in water holding capacity, moisture and sarcoplasmic protein, and higher $L^*$ values for the meat color index in PSE meat than in normal meat, but there were no differences in these factors between genetically normal and sRyR1-heterozygous PSE meat. On the other hand, higher $a^*$ and $b^*$ values were observed in sRyR1-heterozygous than in normal PSE meat, and similar alterations to the a* value were observed in terms of the amount of myoglobin and density of the 17-kDa protein band, corresponding to the molecular mass of myoglobin, on SDS-PAGE gels. These results suggest that sRyR1-heterozygous PSE pork contains much more myoglobin than genetically normal PSE meat.
C Pat Obi People&Global Business Association 2003 Global Business and Finance Review Vol.8 No.2
This study examines secular trends in the pricing of the euro and the prospects of the new European currency to compete with the U.S. dollar in denominating international assets. The global importance of crude. oil as the world's largest cash commodity provides a basis to evaluate the short- and long-run dynamics of the value of the euro vis-à-vis crude oil price as well as stock market and interest rate variables. Variance decompositions show that innovations in oil price and U.S. interest rates explain most of the intertemporal variations of the euro. Conversely, the contribution of the euro to oil price volatility is marginal especially after European stock market effects have been accounted. Notwithstanding, a long-run positive trend seems to exist between oil price and euro as evidenced by their impulse response functions.
THE COMPARATIVE STATICS OF YIELD SPREAD AND EXCHANGE RATES
C Pat Obi People&Global Business Association 2000 Global Business and Finance Review Vol.5 No.1
This paper investigates how changes in the U.S. yield spread influence the direction of exchange rates. Additionally, it determines whether possibilities for abnormal gains exist in the international monetary market around periods of monetary policy pronouncements by the Federal Reserve Board of the United States. The latter inquiry is pursued only when a secular relationship is seen to exist between the term structure of interest rates and exchange rates. Yield spread is the difference between long bond yield and money market yield. Empirical evidence shows that the British pound sterling maintains a secular relationship with yield spread. This relationship however, is not sufficient to provide opportunities for consistent abnormal returns to speculative investors wishing to capitalize from exchange rate aberrations.
Apip Amrullah,Obie Farobie,Gatut Pujo Pramono 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.2
The pyrolysis of coconut shell (CS) only, lamtoro (Leucaena leucocephala) wood residues (LWR) only, and a CS/LWR mixture was experimentally studied herein for the first time. Additionally, the reaction kinetics of solid destruction during the pyrolysis process of CS and LWR was deduced. An experimental investigation was carried out in a batch reactor at the different pyrolysis temperatures (300-500 oC). The highest phenol yield (30.97%) was observed at 500 oC for the pyrolysis of CS. The activation energy and pre-exponential factor and for degradation of solid were successfully determined for the first time using the Arrhenius equation. The activation energy was determined in the range of 121-153 kJ mol1 for the temperature range of 300-500 oC. Meanwhile, the pre-exponential factors of 3.51× 1010 s1, 4.77×1010 s1, and 5.38×1010 s1 were calculated for the pyrolysis of CS only, LWR only, and a CS/LWR mixture, respectively. This research presents the mitigation for the alleviation of the energy crisis and to convert underutilized biomass to high-value products.