Association between the Way of Being Scolded and Self-Esteem in University Students

Self-esteem is an important factor in the rise of depression cases among children and adolescents. In order to build self-esteem, it is important for parents to respect their children, acknowledge their value, and always encourage them, as well as for teachers to acknowledge their character and ability, in addition to allowing them to experience success. At the same time, voices calling for parents and teachers to rediscover their willingness and responsibility to scold children when necessary have also been growing. Therefore, the objective of the present study was to determine the association between self-esteem and the way of scolding. With 311 university students as the study subjects, self-esteem and the relevant factors thereof were evaluated. As a result, no association was observed between the way of being scolded and self-esteem. Moreover, the reasons for being scolded were also not associated with self-esteem. However, regarding the association between the degree of acceptance (convinced by the way of being scolded) and self-esteem, it was revealed that student groups with higher self-esteem had a higher degree of acceptance. This suggested that self-esteem is associated with whether or not the people being scolded are convinced, as opposed to the way of being scolded or the reason for being scolded. Therefore, it was suggested that building a good relationship with those you scold is more important than the way of scolding.

Supercritical Fluid Impregnation of Essential Bark Oil in Copolymers of L-Lactide with 7-Membered Cyclic Compounds

In order to develop a novel controlled-release material, we previously attempted to impregnate poly(L-lactide) (poly(L-LA)), poly(L-LA-ran-CL) (CL: ε-caprolactone) or poly(L-LA-ran-TEMC) (TEMC: tetramethylene carbonate) with low boiling point, organic useful compounds using supercritical carbon dioxide (scCO2) as the solvent. In this work, the factors influencing impregnation of poly (L-LA) random copolymers with useful compounds were investigated under scCO2 using the copolymers previously used. The influence of temperature, pressure, and time on the impregnation contents of the useful compounds on the copolymers was evaluated. The polymer used, which is a base of this material, was poly(L-LA-ran-CL), poly(L-LA-ran-TEMC), or poly(L-LA-ran-DXO) (DXO: 1,5-dioxepan-2-one). Statistical random copolymers of L-LA with CL, TEMC, or DXO were synthesized using Sn(oct)2 as a catalyst at 150°C for 24 h without solvent. Preparation of the controlled-release materials was carried out using essential bark oil from Thujopsis dolabrata var. hondae and synthetic L-LA random copolymers as a base material under scCO2. The impregnation experiment, which investigated the influence of pressure, was conducted in the range of 10 to 20 MPa. The influence of temperature on impregnation was carried out at 40°C to 100°C. Impregnation time was varied from 1 to 5 h. The pressure of essential oil impregnated into poly(L-LA) random copolymers was the highest at 14 MPa. In the influence of temperature on impregnation, the amount of essential oil increased with increasing temperature.