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Identifying Heterogeneous Subpopulations Amongst Asian Americans Using Latent Profile Analysis
Takisha M. Mcneill,Michelle Fukumoto,Seong Hyeon Kim 한국상담학회 2011 Journal of Asia Pacific counseling Vol.1 No.1
This study sought to identify heterogeneous subpopulations among Asian Americans in which the relationships between acculturation, racism-related stress, forgiveness/unforgiveness, three coping strategies styles, and physical health differ from each other using latent profile analysis (LPA; Bartholomew & Knott, 1999). The sample consisted of 278 participants from two states of the United States: Hawaii and California. The fit indices and the class membership of the sample indicated that a two-class model provides the best fit to the data. In a two-class LPA model, one class demonstrated significantly higher levels in racism-related stress, dysfunctional coping, problem-focused coping, emotion-focused coping, and physical health than the other class. This can be interpreted as indicating that Asian Americans who are stressed both psychologically and physically need to adopt all available coping strategies to deal with racism-related stress and poor health. In the conditional model, only the variable of past contact with psychologists significantly predicted class membership.
T. Fukumoto,G. M. Eom,S. Ohba,N. Hoshimiya 한국정밀공학회 2004 한국정밀공학회 학술발표대회 논문집 Vol.2004 No.10월
High temporal-resolution and accurate measurement of skin impedance locus provides useful data for the identification of the physiological/psychological changes and also the identification of acupuncture point. An impedance spectroscopy method using digitally constructed current waveform consisting of many frequency components (multiples of 1Hz) was reported3. The time resolution of the method depends on the lowest frequency used in the waveform construction, and therefore, the measurement would be faster if the lowest frequency is the higher. However, it was not clear that how many and how low frequencies must be used for the estimation of the skin impedance parameters from which the impedance locus can be drawn. This study shows the relationship between the estimation error of the impedance parameters and the frequency coverage of the spectroscopy. The results of this study are expected to serve as the reference of the frequency selection in the impedance spectroscopy.
THE ROLE OF THE ELECTRON-PHONON INTERACTION IN THE MAGNETIZATION BEHAVIOR OF METALLIC FERROMAGNETS
Maki, Y.,Fukumoto, S.,Kim, D.J.,Tamada, T.,Antonoff, M. M.,Lee, K. H. 全北大學校 基礎科學硏究所 1994 基礎科學 Vol.17 No.-
We show that the effect of the electron-phonon interaction in the ferromagnetic state of an itinerant electron ferromagnet results in an effective magnetic field and modifies the spin splitting of the electron energy bands. From a numerical calculation with a simple model electronic structure we find that such phonon effect can be much larger than ordinarily anticipated; the effect on the saturation magnetization can be as large as∼1μ_B/atom, and that on the temperature dependence of magnetization can significantly reduce the Curie temperature.
Kim, D.J.,Fukumoto, S.,Antonoff, M.M.,Lee, K.H. 全北大學校 基礎科學硏究所 1994 基礎科學 Vol.17 No.-
We report out discovery that the exchange splitting of the electron energy bands in the ferromagnetic state of a metal can be affected by the effect of the electron-phonon interaction and that, whereas the sign and magnitude of such a phonon effect depend sensitively on the electronic structure around the Fermi surface of the metal, the magnitude can be comparable with that of the ordinary Stoner exchange splitting. This conclusion was obtained by examining how the phonon frequencies, and therefore the phonon free energy, change with the spin splitting of the energy bands of the screening electrons in an itinerant electron ferromagnet. By carrying out a numerical calculation with a model electronic density of states, we demonstrate the importance of considering this effect in accounting for the observed magnetization and its temperature dependence in a ferromagnetic metal.