RESUMEN
We examined cultural specificity in how adolescents' coping strategies in response to peer victimization are associated with adjustment with a sample of 7th-8th graders from the United States (n = 292, 60% female, Mage = 13.6, SD = 0.65) and South Korea (n = 462, 50.2% female, Mage = 13.7, SD = 0.58). Participants read scenarios describing victimization and rated the likelihood of utilizing different coping strategies. US adolescents rated conflict resolution, cognitive distancing, and revenge higher than Korean adolescents, while Korean adolescents endorsed social support seeking more than US adolescents. Social support seeking was positively associated with global self-worth in both countries; however, social support seeking was negatively related to depression and social anxiety only for Korean youth.
Asunto(s)
Habilidades de Afrontamiento , Víctimas de Crimen , Humanos , Adolescente , Femenino , Estados Unidos/epidemiología , Masculino , Grupo Paritario , Apoyo Social , República de Corea , Víctimas de Crimen/psicologíaRESUMEN
Although there is cultural variability in how individuals make attributions for their own and others' behaviors, cultural variation in youth's attributions about peer victimization and their relation with internalizing problems has gone unexamined. To address this issue, adolescents from the U.S. (n = 292, 60% female, 79.5% White, Mage = 13.6, SD = 0.65) and Korea (n = 462, 50.2% female, Mage = 13.7, SD = 0.58) reported on their peer victimization, depressive symptoms, social anxiety, self-worth, and rated their attributions to vignettes about peer victimization. Multigroup confirmatory analyses found that Korean and American youth conceptualized characterological self-blame, behavioral self-blame, and externalization of blame similarly. However, Korean youth differentially endorsed each of the three types of attributions, while U.S. adolescents endorsed characterological self-blame and behavioral self-blame at similar levels. Attributions had unique relations with internalizing problems (depression, social anxiety, global self-worth) in each culture. In multigroup SEM analyses, characterological self-blame predicted all internalizing problems for U.S. adolescents, while behavioral self-blame was not uniquely related to internalizing problems. For Korean adolescents, behavioral self-blame significantly predicted all internalizing problems, whereas characterological self-blame predicted global self-worth only. The results suggest that attributions about victimization have different adjustment implications in Korea than in the U.S.
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Acoso Escolar , Víctimas de Crimen , Adolescente , Femenino , Humanos , Masculino , Grupo Paritario , República de Corea , Percepción SocialRESUMEN
This study examined cultural specificity in how interpretations about peer provocation are associated with revenge goals and aggression. The sample consisted of young adolescents from the United States (369 seventh-graders; 54.7% male; 77.2% identified as White) and from Pakistan (358 seventh-graders; 39.2% male). Participants rated their interpretations and revenge goals in response to six peer provocation vignettes and completed peer nominations of aggressive behavior. Multi-group SEM models indicated cultural specificity in how interpretations were related to revenge goals. Interpretations that a friendship with the provocateur was unlikely were uniquely related to revenge goals for Pakistani adolescents. For U.S adolescents positive interpretations were negatively related to revenge but self-blame interpretations were positively related to vengeance goals. Revenge goals were related to aggression similarly across groups.
RESUMEN
This simulation study aims to propose an optimal starting model to search for the accurate growth trajectory in Latent Growth Models (LGM). We examine the performance of four different starting models in terms of the complexity of the mean and within-subject variance-covariance (V-CV) structures when there are time-invariant covariates embedded in the population models. Results showed that the model search starting with the fully saturated model (i.e., the most complex mean and within-subject V-CV model) recovers best for the true growth trajectory in simulations. Specifically, the fully saturated starting model with using ΔBIC and ΔAIC performed best (over 95%) and recommended for researchers. An illustration of the proposed method is given using the empirical secondary dataset. Implications of the findings and limitations are discussed.
RESUMEN
Ischemic preconditioning (IP) is a phenomenon that organs develop a tolerance toward subsequent lethal ischemic insults. Among the factors that are involved in IP, IL-1beta and its endogenous receptor antagonist IL-1ra have been identified as important players in the induction of IP. The present study investigated whether IP affects the levels of these two antagonistic proteins during tolerance and reperfusion periods after ischemic stroke. The IP 24 h prior to ischemic stroke resulted in neuroprotection in the cortex. IP-induced protection is accompanied by increased IL-1beta gene and IL-1ra gene and protein levels during the tolerance period. In the post-ischemic cortex, IP resulted in the suppression of IL-1beta mRNA and protein levels at 6 h without affecting IL-1ra expression and the up-regulation of IL-1ra protein at 24 h. These findings demonstrate that IP differentially regulates cortical IL-1beta and IL-1ra expression before and after ischemic stroke and suggest that the shift toward an anti-inflammatory state in the post-ischemic cortex may contribute to IP-induced neuroprotection.
Asunto(s)
Enfermedades de las Arterias Carótidas/prevención & control , Regulación de la Expresión Génica/fisiología , Infarto de la Arteria Cerebral Media/prevención & control , Proteína Antagonista del Receptor de Interleucina 1/metabolismo , Interleucina-1beta/metabolismo , Precondicionamiento Isquémico , Análisis de Varianza , Animales , Enfermedades de las Arterias Carótidas/metabolismo , Enfermedades de las Arterias Carótidas/patología , Corteza Cerebral/metabolismo , Modelos Animales de Enfermedad , Infarto de la Arteria Cerebral Media/metabolismo , Infarto de la Arteria Cerebral Media/patología , Proteína Antagonista del Receptor de Interleucina 1/genética , Interleucina-1beta/genética , Masculino , Ratones , Ratones Endogámicos C57BL , ARN Mensajero/metabolismo , Factores de TiempoRESUMEN
Commercial essential oils from 28 plant species were tested for their nematicidal activities against the pine wood nematode, Bursaphelenchus xylophilus. Good nematicidal activity against B. xylophilus was achieved with essential oils of coriander (Coriandrum sativum), Oriental sweetgum (Liquidambar orientalis), and valerian (Valeriana wallichii). Analysis by gas chromatography-mass spectrometry led to the identification of 26, 11, and 4 major compounds from coriander (Coriandrum sativum), Oriental sweetgum (Liquidambar orientalis), and valerian (Valeriana wallichii) oils, respectively. Compounds from each plant essential oil were tested individually for their nematicidal activities against the pine wood nematode. Among the compounds, benzaldehyde, trans-cinnamyl alcohol, cis-asarone, octanal, nonanal, decanal, trans-2-decenal, undecanal, dodecanal, decanol, and trans-2-decen-1-ol showed strong nematicidal activity. The essential oils described herein merit further study as potential nematicides against the pine wood nematode.