• Food Science of Animal Resources
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• v.32 no.3
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• pp.274-284
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• 2012

In this study, the effects of physical parameters (30-270 MPa of pressure, 3-57 min of time, and 1-$49^{\circ}C$ of temperature) on pork quality were investigated. Response surface methodology was used in order to monitor and model the changes in pork quality under varied pressure conditions. As quality characteristics, shear force, water holding capacity (WHC) and the CIE color of pork were measured, and optimum pressure conditions were evaluated by statistical modeling. Pressure improved the WHC of pork at relatively low temperature ($<25^{\circ}C$); however, the opposite occurred with increasing temperature. Although pressure and temperature affected the tenderness of the meat, interaction effects among variations were not observed. At pressure levels higher than 200 MPa, the color of pork differed markedly from that of the untreated controls. In particular, differential scanning calorimetry (DSC) revealed marked evidence of myosin denaturation. The present study demonstrates that pork quality varies depending on pressure conditions.

• Food Science of Animal Resources
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• v.36 no.1
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• pp.131-136
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• 2016

This study was conducted to investigate the effects of chicory fiber for the replacement of fat and smoking on quality characteristics of restructured sausages. Treatments were as follows; Control: Pork backfat 20%, T1: Pork backfat 10% + Chicory fiber 10%, T2: Control + Smoking, T3: T1 + Smoking. The addition of chicory fiber significantly reduced the moisture, fat, hardness and pH values, whereas the smoking treatment increased the fat, redness and pH values of restructured sausages (p<0.01). Additionally, interaction of them significantly affected the ash, chewiness and hardness values of restructured sausages. As a result, although the addition of chicory fiber decreased the quality characteristics of sausage, smoking treatment improved the reduced quality. Therefore, the chicory fiber and smoking treatment is helpful to develop restructured sausage products with reduced fat and compensated quality.

• Women's Health Nursing
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• v.13 no.2
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• pp.77-87
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• 2007

Purpose: This study was examined the quality of the sexual life among married women in terms of the factor structure of Sexual Quality of Life(SQOL) and evaluated the predictive value of 11 variables for SQOL. Method: Two hundred and ninety-three married women completed the Korean version SQOL scale with information on age, education, length of marriage, family income, health, sexual knowledge, coital frequency, harmony with family members, levels of affection, and general and sexual communication. Data were analysed with principal components and regression analyses. Result: The SQOL scale had two clearly defined factors, Negative Quality of Sexual Life and Positive Quality of Sexual Life, on which all scale items were significantly loaded, accounting for 54.3% of the total variance. Independent regression analysis showed all variables except education to be significant predictors of SQOL with interpersonal variables (general and sexual communication, affection and harmony with family members) being the most powerful predictors. However when the 11 variables were combined together in stepwise analysis, only 6 variables (general communication, age, affection, coital frequency, sexual knowledge and health) were significant, accounting for 39% of the total variance. Conclusion: The Korean version SQOL scale is a good measure to tackle SQOL in married women. To enhance SQOL, strengthening interpersonal interaction focusing on general/sexual communication, affection and harmony with family members seems to be more important than sexual activities and personal characteristics.

• Journal of the Korean Wood Science and Technology
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• v.51 no.5
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• pp.381-391
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• 2023

Densification is a technique used to improve biomass quality in wood pellet manufacturing and torrefaction treatment. In this study, the effects of torrefaction on the quality of Calliandra wood pellets were investigated, and pellets of Calliandra wood (Calliandra calothyrsus) and bark were evaluated. The study was conducted using a completely randomized design with two treatment factors, namely torrefaction temperature (250℃ and 300℃) and torrefaction duration (30, 45, and 60 min). The results showed that the interaction between temperature and torrefaction duration significantly affected the compressive strength, proximate value, and calorific value of the torrefied Calliandra wood pellets. An increase in the temperature and torrefaction duration decreased the compressive strength, moisture content, volatile matter content, and ash content of the torrefied Calliandra wood pellets. Conversely, the calorific value of Calliandra wood pellets increased with increasing temperature and torrefaction duration. The best-quality Calliandra wood pellets were produced at a torrefaction temperature and duration of 300℃ and 60 min, respectively. In terms of important quality parameters, ash content of 0.90% and calorific value of 6,303.80 cal/g were observed, which complied with the quality standards of Indonesian National Standard 8675:2018 and Deutsche Industrie Norm 51731.

• The Korean Journal of Community Living Science
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• v.19 no.1
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• pp.45-54
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• 2008

The purpose of this study was to identify the relationships between early childhood socioemotional development and day care experience and daycare quality. The subjects were 116 children, age 5 years old, from 17 daycare centers. The teachers at the 17 daycare centers rated the quality of their facility while the mothers of the 116 children assessed their children's socioemotional development. Daycare experience was composed of: the time period, hours per day, and the child's starting age at enrollment in daycare. Daycare quality was measured by questionnaire developed by Park(1995). Children's socioemotional development was rated by K-CBCL (Oh et al. 1997). The results were as follows. First, starting daycare experience less than 2 years of age, attending more than 6 days per week, and attending more than 8 hours per day of daycare experience were negatively related with children's development. Second, quality of daycare such as child-centered curriculum, abundant interaction between teachers and parents, opportunity for continuing education of teachers, higher levels of rewards and incentives for teachers, and the provision of nutritious food were positively related to the children's development.

• Journal of the Korean Home Economics Association
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• v.46 no.4
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• pp.25-35
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• 2008

The purpose of this study was to investigate the relationship pattern among the children's negative and aimless behaviors, and the variables related to teachers (characteristics, stress, efficacy, and quality of teachers' behaviors). Subjects were 190, 5 year-old children and 48 teachers at 45 child care centers. The children's negative and aimless behaviors were observed with time sampling method. The quality of teachers' interaction behaviors was rated by the Assessment Scales for Day Care Programs during the free play activities. Teachers responded to the Scale for the Teachers' Job Stress and Teachers' Efficacy. The data were analyzed with descriptive statistics, Pearson's correlations, multiple regressions, and partial correlations. The results were as follows. The teachers' experience and the quality of teachers' behaviors significantly explained the children's negative behaviors. The quality of teachers' behaviors significantly explained the children's aimless behaviors. Lastly, the quality of teachers' behaviors mediated the relationship between the teachers' job stress and the children's aimless behaviors.

• Korean Journal of Child Studies
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• v.35 no.4
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• pp.123-143
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• 2014

This research was based on achievement goal theory which categorizes young children's motivation into three types: mastery, the performance-approach, and performance-avoidance motivation. The participants consisted of forty-eight pairs of children aged 3-4 and their mothers. The participants completed two tasks in order to indentify their motivational types. The short form of the Child Behaviour Questionnaire(CBQ-SF), modified scales from Kim and Kim(2001), and the GIPEPS were also employed. The major findings of the research are as follows: First, in terms of the motivational types of the given sample, performance-approach motivation was ranked first followed by mastery motivation. Second, it was found that the temperament of young children was not related with their motivational types. Third, there were some differences in mother-child interaction between groups based on the frequency of feedback, questions, and the percentage of commands. Fourth, the mood of the relationship appeared to be the only factor of maternal interaction quality which related to children's mastery motivation.

• Asian-Australasian Journal of Animal Sciences
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• v.15 no.11
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• pp.1523-1526
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• 2002

Genetic parameters of carcass weight (CWT), dressing percent (DP), cook loss (CL), eye muscle area (EMA), back fat thickness (BFT), and meat tenderness in terms of mastication (MAS), shear force (SFR) and penetration (PEN) in Korean native cattle were estimated in this study. Effects of sire, location and their interaction on these traits were also evaluated. Sire effects were found to be significant on all the traits studied except for PEN. The CWT and DP were also significantly affected both by location (p<0.01) and by interaction effect between sire${\times}$location (p<0.05). The EMA was significantly (p<0.05) affected by location but not by interaction effect between sire${\times}$location. All the traits were positively correlated ($r_g$ and $r_p$) with each other except between CL and meat tenderness (negatively correlated). Moderate to high genetic correlations between CWT and other important traits were obtained; indicating that selection for CWT would lead to improve carcass quality. Heritability estimates were 0.64, 0.52, 0.37, 0.25, 0.19 and 0.18 for MAS, SFR, CWT, PEN, DP and EMA, respectively.

• Korean Journal of Childcare and Education
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• v.17 no.2
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• pp.121-142
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• 2021

Objective: The purpose of this study is to examine the mediating effect of teacher-child emotional, verbal, and behavioral interactions on the relationship between teacher playfulness and children's peer abilities. Methods: The research method used the questionnaire method to collect data on 420 children aged 3-5 years old, targeting 108 homeroom teachers working at early childhood education institutions located in Seoul and Gyeonggi area. The collected data was analyzed using the IBM SPSS 23.0 statistical program and the PROCESS macro of Hayes (2013). Results: This study confirmed that teachers' verbal, emotional, and physical interactions are closely related to young children's peer competence. In addition, it was confirmed that the teacher's playability is an important variable that affects not only the emotional, verbal, and physical interactions between the teacher and the infant, but also the peer competence of young children. Conclusion/Implications: The results of this study have significance as basic data that suggests that it is necessary to improve the playability of teachers and increase the quality level of the multifaceted aspects of teacher-infant interaction in order to support young children's peer competence.

• The Korean Journal of Health Service Management
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• v.10 no.2
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• pp.145-154
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• 2016

Objectives : Because people have increasingly more interest in their quality of life, the anti-aging industry has grown worldwide. The purpose of this study is to suggest strategies for galvanizing the anti-aging industry in Korea. Methods : To accomplish this aim, we explored the definition, classification, problem and activating strategies of the anti-aging industry through a systematic review. Results : From the results, the following suggestions are given: planning a national strategy to galvanize the anti-aging industry, establishing an anti-aging research institute, developing a business model, developing an anti-aging cluster, statistics development and an information system related to anti-aging, training personnel, and legislation. Conclusions : The anti-aging industry has the potential to reduce health expenses through early intervention of diseases due to aging and through activation of the national economy by win-win growth of the industry related to aging. Therefore, understanding the anti-aging industry as well as political support is critical.