Quark number Susceptibility and Phase Transition in hQCD Models

We study the quark number susceptibility, an indicator of QCD phase transition, in the hard wall and soft wall models of hQCD. We find that the susceptibilities in both models are the same, jumping up at the deconfinement phase transition temperature. We also find that the diffusion constant in the soft wall model is enhanced compared to the one in the hard wall model.Comment: 14 pages, 2 figure

Issues and Trends in Cross-border E-commerce in Korea

Consumers purchase cross-border e-commerce products directly from overseas online shopping malls. An increase in the popularity of cross-border e-commerce means that smart consumption trends revolutionized the consumption process. The scale of cross-border e-commerce in Korea reached a record high in 2017. Existing literature suggests that the sharp increase is due to price, product diversity, efficient shipping, expansion of duty-free range and hedonic motivation. A semantic network analysis revealed three main clusters in relationships between cross-border e-commerce research subjects: consumer, country and process

Robotic Sacrocolpopexy for Treatment of Prolapse of the Apical Segment of the Vagina

Abdominal sacrocolpopexy for apical prolapse repair is the gold standard treatment and is more effective and durable than the transvaginal approach. The increase in minimally invasive surgery has led to attempts at laparoscopic sacrocolpopexy, but this technique has not gained popularity due to complex procedures and a steep learning curve. Robotic sacrocolpopexy overcomes these issues and has yielded good results for more than 15 years, with equivalent outcomes and safety to open and laparoscopic sacrocolpopexy (LSC). LSC is still a useful procedure for experienced surgeons, but it is expected that robot-assisted sacrocolpopexy (RSC) will have better results overall due to the advantages of the robotic instrument. The most important advantage is that surgeons who are inexperienced with minimally invasive approaches can more readily master RSC compared to overcoming the steep learning curve of LSC