Emergent dynamics of the Kuramoto ensemble under the effect of inertia

We study the emergent collective behaviors for an ensemble of identical Kuramoto oscillators under the effect of inertia. In the absence of inertial effects, it is well known that the generic initial Kuramoto ensemble relaxes to the phase-locked states asymptotically (emergence of complete synchronization) in a large coupling regime. Similarly, even for the presence of inertial effects, similar collective behaviors are observed numerically for generic initial configurations in a large coupling strength regime. However, this phenomenon has not been verified analytically in full generality yet, although there are several partial results in some restricted set of initial configurations. In this paper, we present several improved complete synchronization estimates for the Kuramoto ensemble with inertia in two frameworks for a finite system. Our improved frameworks describe the emergence of phase-locked states and its structure. Additionally, we show that as the number of oscillators tends to infinity, the Kuramoto ensemble with infinite size can be approximated by the corresponding kinetic mean-field model uniformly in time. Moreover, we also establish the global existence of measure-valued solutions for the Kuramoto equation and its large-time asymptotics

Fabrication of Microstructure Array using the Projection Microstereolithography System

Microstereolithography technology is similar to the conventional stereolithography process and enables to fabricate a complex 3D microstructure. This is divided into scanning and projection type according to aiming at precision and fabrication speed. The scanning MSL fabricates each layer using position control of laser spot on the resin surface, whereas the projection MSL fabricates one layer with one exposure using a mask. In the projection MSL, DMD used to generate dynamic pattern consists of micromirrors which have per side. The fabrication range and resolution are determined by the field of view of the DMD and the magnification of the projection lens. If using the projection lens with high power, very fine microstructures can be fabricated. In this paper, the projection MSL system adapted to a large surface for array-type fabrication is presented. This system covers the meso range, which is defined as the intermediate range between micro and macro, with a resolution of a few . The fabrication of array-type microstructures has been demonstrated to verify the performance of implemented system

Self-Sexualization in Relation to Sexual Harassment and Body Shame

While many researchers examined several harmful consequences of the imposed or forced sexualization of women, still little is known about voluntary self-sexualization and its potential effects on women who engage in the practice. Although the idea that self-sexualization is self-fulfilling remains contentious, women who self-sexualize are naturally expected to receive sexualized attention, including unwanted attention. This study starts with the question of whether self-sexualizing women, including those who use self-sexualization as a source of power, experience sexual objectification, measured by nonphysical sexual harassment, and its negative consequence, measured by body shame. Furthermore, we investigate how age moderates the relationship. An online questionnaire was created and a total of 308 women completed the questionnaire. Structural equation modeling was conducted to test the hypothesized causal relationships from self-sexualization (self-empowering sexualization and no-power-intent self-sexualization) to nonphysical sexual harassment, which can lead to body shame. The results showed that the effects of self-sexualization are dependent on the intent for self-sexualization as well as the self-sexualizer’s age. While self-sexualization without intent to gain power can lead to increased sexual harassment incidents and body shame, mature women’s self-sexualization as a source of power does not lead to increased sexual harassment experiences nor increased body shame. However, unlike the mature women’s self-empowering sexualization, the young women’s self-sexualization, with or without intent to gain power, can lead to more sexual harassment experiences. The findings of this study indicate the need to uncover the various intentions for self-sexualization as well as their different effects

A Cross-cultural Study of Proximity of Clothing to Self between South Korea and Mongolia

South Korea and Mongolia which countries experienced totally different social and cultural background. The current study, explored how the level of the cultural dimensions, affects the human psychology in relation to using fashion as a tool of representing ˜self\u27, and examined how the level of self-expression through clothing affects the quality of life. The questionnaire was composed based on the Hofstede\u27s Cultural Variability Dimension Scale (Hofstede and Minkov, 2013), the Proximity of Clothing to Self Scale developed by Sontag and Lee (2004), and Quality of Life Scale from study of Lee, et al (2002) for the study. Through exploratory factor analysis, four original factors of PCS were identified. To compare the level of cultural dimensions, each cultural index was calculated using formula suggested by Hofstede and Minkov (2013) and then independent T-test was performed to confirm significance. Multiple regression analysis identified negative relationship between the level of IDV and PCS2 (β=-.28, p\u3c.001) and PCS3 (β=-.19, p\u3c.05) as well as MAS and PCS4 (β=-.15, p\u3c.05) in South Korea; while it found positive relationship between IVR and PCS2 (β=.15, p\u3c.05) and PCS3(β=.21, p\u3c.001) in Mongolia. Further, regression analysis results revealed that PCS1 (β=.28, p\u3c.001), PCS2 (β=.27, p\u3c.001), and PCS4 (β=.20, p\u3c.01) are positively related to QOL in South Korea; and PCS1 (β=.16, p\u3c.01), PCS2 (β=.30, p\u3c.001), PCS3 (β=.22, p\u3c.001) and PCS4 (β=.22, p\u3c.001) are positively related to QOL in Mongolia. The findings of this exploratory study helps explain differences in fashion psychology in relation to the cultural value and the important role of clothing in the quality of human life. These findings together suggest that specific cultural values of a country can affect motives for choosing certain product or brand to express self through fashion. Thus marketers need to be considerate in communicating advertisement message, as self-enhancement through fashion can be motivated by different cultural values

Effects of Resilience, Post-traumatic Stress Disorder on the Quality of Life in Patients with Breast Cancer

PURPOSE: The purpose of this study was to identify relationships of resilience, Post-Traumatic Stress Disorder(PTSD), and quality of life of breast cancer patients. The findings from this study would provide baseline data needed for nursing intervention. METHODS: A sample of 129 breast cancer patients was recruited from three hospitals in J and C cities in Korea. The survey was conducted with participants by utilizing self-reported questionnaires. RESULTS: Quality of life showed statistically significant differences on religion (t=2.11, p=.033) and hobby (t=2.79, p=.006). Resilience and PTSD had a negative correlation (r=-.22, p=.010). Resilience and quality of life of the participants had a positive correlation (r=.58, p<.001), whereas PTSD and quality of life had a negative correlation (r=-.45, p<.001). Significant predictors of quality of life were resilience and PTSD. These variables explained 44.9% of the variance in quality of life. CONCLUSION: Findings indicate that as resilience of breast cancer patients rose higher and PTSD got lower, their quality of life increased. Based on these results, nursing interventions directed towards improving resilience and relieving PTSD is proposed

Effects of Suspension Training on Core Stability and Functional Movement Screen Scores in Healthy Adult Men

OBJECTIVES The purpose of this study is to determine whether suspension training can be an effective intervention in improving functional movement in healthy adult men. METHODS The recruited subjects of Twenty healthy adult men without musculoskeletal diseases were divided into group that performed TRX exercise (n=10) and a group that performed traditional OKC exercise using a resistance machine (n=10). The variables were the deep squat, hurdle step, inline lunge, shoulder mobility, leg raise, push-up, and rotational stability after an 8-week exercise program. The total score of the 7 movements was calculated to compare and analyze the before-and-after changes in FMS score. All the data obtained in this study were analyzed with SPSS package (ver 21.0). To examine the effects of the suspension training program used in this study, Repeated measures ANOVA was conducted to compare the effects before and after the participation in the program. RESULTS The research results are as follows; The results of the FMS evaluation scores showed no significant differences between the TRX group and the OKC group in the deep squat, hurdle step, inline lunge, shoulder mobility, leg raise, and push-up evaluations, and no interaction effect was found. However, the rotational stability evaluation score showed higher scores in the TRX group after training, showing a significant interaction effect (p<.001). The change in total evaluation score also significantly increased in the TRX group (p<.05), but there was no significant difference in the OKC group. CONCLUSIONS In conclusion, rotational stability and total evaluation scores increased after training in the TRX group. In particular, TRX training using suspension may be more effective than traditional forms of training using resistance exercise equipment for people who have instability in the multi-plane stability of the pelvis, core, and shoulder girdle, which are involved in rotational stability