The purposes of this study were (1) to explore the gender differences in children's overt aggression and relational aggression and (2) to investigate the effects of preschool children's gender, temperament, emotional regulation, and maternal parenting stress on overt aggression and relational aggression. The participants were 173 preschool children and their mothers from three day care center and two kindergarten in Seoul and Gyeong-gi province. The data were analyzed using descriptive statistics, t-test, correlations, and multiple regressions. The results were as follows: (1) There was statistically significant gender difference in preschool children's overt aggression, but there was statistically no significant gender difference in preschool children's relational aggression. Boys displayed more overt aggression than girls. (2) Preschool children's emotional regulation and activity explained children's overt aggression and relational aggression. When preschool children expressed more emotional regulation, they showed less overt aggression and relational aggression. Preschool children, who perceived having more activity from mothers, diaplayed more overt aggression and relational aggression. Gender was found to affect preschool children's overt aggression.

Abortion is one of the most common complications in pregnancy, and the cause of its occurrence in many cases remains unknown. The high prevalence and consequences of anxiety in women with spontaneous abortion could highlight the importance and role of post-abortion care (PAC). Detection and identification of biomarkers related to abortion and anxiety can effectively diagnose and prevent complications. Among the known biomarkers, microRNAs and the cortisol level have high potential. Therefore, the present study evaluated the effect of post-abortion care (PAC) on anxiety in women with spontaneous abortion based on MicroRNA-21 expression, cortisol level, and Fordyce happiness pattern. In this randomized clinical trial, 72 women with spontaneous abortion were studied and randomly divided into two groups of intervention (n = 36) and control (n = 36). Data were collected through a demographic questionnaire and HADS. To assess PAC, the intervention group was consulted in 8 sessions of 60 minutes in the first 72 hours after abortion. Meetings were held twice a week for four weeks. Both groups were followed up immediately after and one month after the intervention. To evaluate biological factors, 4ml of blood sample was obtained from the subjects. Blood cortisol levels were measured by the Cortisol Competitive Human ELISA Kit (Thermo-Fisher, USA), and microRNA-21 evaluation was performed by Real-time PCR technique. Data were analyzed using SPSS16 software. Results showed that before the intervention, there was no significant difference in the mean score of anxiety between the control and intervention groups (P> 0.05); But at the time immediately and one month after the intervention, there was a significant difference in the mean score of anxiety (p <0.001). The results of biological factors evaluation showed that in the intervention group, serum cortisol levels and microRNA-21 expression decreased significantly (p <0.05). In general, PAC based on the happiness pattern can control the anxiety of women with spontaneous abortion. Therefore, it is recommended as an effective and non-invasive intervention in preventing women's psychological problems after spontaneous abortion.

The purpose of this study was to examine the effects of paternal parenting sense of competence, paternal satisfaction, conflict-coping behaviors, and preschooler's emotional regulation on preschooler's social skills. Participants were 85 5-to 6-year-old preschoolers(41 boys, 44 girls) and their fathers. The Social Skill Rating Scale (Suh, 2004), the Parenting Sense of Competence (Shin & Chung, 1998), the Parental Satisfaction Scale (Seo & Lee, 2002), Conflict-coping behaviors (Cho & Kim, 2000) and the Emotional regulation (Kim & Kim, 1999) were used. Collected data were analyzed by descriptive statistics, t-test, correlation analysis and multiple regression analysis.The major findings were summarized as follows: (1) there were no differences between the boys' and girls' social skills. (2) parental satisfaction and emotional regulation explained social skills -cooperation. (3) conflict-coping behaviors(rationality and request for others) and emotional regulation explained social skills -self-control. (4) emotional regulation explained social skills -assertion. In conclusion, parental satisfaction, conflict-coping behaviors, and preschooler's emotional regulation influence differently according to the subscale of preschooler's social skills.

No abstract

Dysfunctional uterine bleeding is menstrual bleeding in abnormal volume, duration, or time, and it is a common problem in women. A wide range of drug therapies, with varying efficacy, is available for women with dysfunctional uterine bleeding. The use of herbal and traditional medicine is one of the ways to treat this disease, which has fewer side effects than chemical drugs. On the other hand, these medicines have less effect on treatment than chemical drugs. Therefore, increasing their effectiveness in the treatment of diseases has always been important. For this purpose, in this study, a comparison was done between direct use and PLGA nanocapsules containing Tiaojing Zhixue, in the treatment of dysfunctional uterine bleeding. First, PLGA nanocapsules containing Tiaojing Zhixue were synthesized by the electrospray technique. Then 80 women with dysfunctional uterine bleeding were treated with this medicine. These people were divided into two groups of 40 people. The first group was treated with 20mg of Tiaojing Zhixue and the other group was treated with PLGA nanocapsules containing Tiaojing Zhixue for eight months. The duration and frequency of bleeding from one month before the start of treatment and during the eight months after the start of treatment (second, fourth, and eighth month) were assessed in two groups. The two groups were homogeneous in terms of mean frequency of bleeding and mean duration of bleeding before starting treatment. The positive response in the PLGA nanocapsules treatment group (75%) was higher than the direct use drug treatment group (42.5%) (P < 0.01). The rate of side effects was the same in each group. Due to the effectiveness of PLGA nanocapsules in the treatment of dysfunctional uterine bleeding and the lack of side effects, it can be considered as an alternative medicine for the treatment of this disorder.