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RISS 인기검색어
- 검색키워드
- 저자 : Espinosa-Hernandez, Graciela (검색결과 3 건)
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Espinosa-Hernandez, Graciela,Bamaca-Colbert, Mayra Y.,Vasilenko, Sara A.,Mirzoeff, Charlotte A. Korean Association of Child Studies 2013 Child studies in Asia-Pacific context Vol.3 No.2
We examined the associations between Latino cultural variables and four sexual behaviors among female adolescents of Mexican origin. Participants ages 14 to 19 (N = 153; 70% born in the U.S) completed surveys about four sexual behaviors (making out, receiving and performing oral sex, and vaginal sex) and cultural variables (nativity, language use, familism, and importance of female virginity). Findings indicated that participants who were born in the U.S. were less likely to have engaged in making out and vaginal sex than participants born in Mexico. Participants reporting stronger familism were less likely to have engaged in making out and oral sex than participants reporting less familism. For all behaviors, placing a greater value on female virginity was associated with lesser odds of engaging in that behavior. This study expands our understanding of the role of nativity and Latino values in the sexual behaviors of Mexican-origin female adolescents.
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Graciela Espinosa Hernandez,Mayra Y Bamaca Colbert,Sara A Vasilenko,Charlotte A Mirzoeff 한국아동학회 2013 Child studies in Asia-Pacific context Vol.3 No.2
We examined the associations between Latino cultural variables and four sexual behaviors among female adolescents of Mexican origin. Participants ages 14 to 19 (N = 153; 70% born in the U.S) completed surveys about four sexual behaviors (making out, receiving and performing oral sex, and vaginal sex) and cultural variables (nativity, language use, familism, and importance of female virginity). Findings indicated that participants who were born in the U.S. were less likely to have engaged in making out and vaginal sex than participants born in Mexico. Participants reporting stronger familism were less likely to have engaged in making out and oral sex than participants reporting less familism. For all behaviors, placing a greater value on female virginity was associated with lesser odds of engaging in that behavior. This study expands our understanding of the role of nativity and Latino values in the sexual behaviors of Mexican-origin female adolescents.
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Ana Espinosa,Eva C espedes,Carlos Prieto,Mar Garcia-Hernandez,Alicia de Andres 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.52 No.5
We have investigated magnetic, electronic and structural properties of two series of multilayers, (Mn(d)/ZnO(₃ nm))N and (Mn(d)/SnO₂(₃nm))N, deposited onto Si(100) using magnetron sputtering. The nominal Mn layer thickness, d, ranged from 10 to 0.2 nm and the number of layers, N, was increased to keep the total amount of Mn constant. Structural information was deduced from X- ray re ectivity and XAS and Mn oxidation state is estimated from its K edge. The ferromagnetic transition temperature, TC, in those samples where a ferromagnetic order is established, is always above 400 K. The ferromagnetic fraction within each sample evidences an opposite behaviour as Mn layer thickness is reduced and N increased, in ZnO and SnO₂ series. While ferromagnetism is favoured in Mn/ZnO increasing d, the maximum value, in Mn/SnO₂, is obtained for 0.4 nm Mn layers. A Mn mixed valence state is not a sucient condition for ferromagnetism. We discuss the origin of this opposite behaviour which is related to the particular phases formed at the interfaces related to the dierent ability of ZnO and SnO₂ to participate and saturate Mn oxide phases. We have investigated magnetic, electronic and structural properties of two series of multilayers, (Mn(d)/ZnO(₃ nm))N and (Mn(d)/SnO₂(₃nm))N, deposited onto Si(100) using magnetron sputtering. The nominal Mn layer thickness, d, ranged from 10 to 0.2 nm and the number of layers, N, was increased to keep the total amount of Mn constant. Structural information was deduced from X- ray re ectivity and XAS and Mn oxidation state is estimated from its K edge. The ferromagnetic transition temperature, TC, in those samples where a ferromagnetic order is established, is always above 400 K. The ferromagnetic fraction within each sample evidences an opposite behaviour as Mn layer thickness is reduced and N increased, in ZnO and SnO₂ series. While ferromagnetism is favoured in Mn/ZnO increasing d, the maximum value, in Mn/SnO₂, is obtained for 0.4 nm Mn layers. A Mn mixed valence state is not a sucient condition for ferromagnetism. We discuss the origin of this opposite behaviour which is related to the particular phases formed at the interfaces related to the dierent ability of ZnO and SnO₂ to participate and saturate Mn oxide phases.
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