• Korean Journal of Poultry Science
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• v.46 no.3
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• pp.155-160
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• 2019

The Korean Hanhyup broiler has commercialized native meat-type chicken. This study aimed to determine the effects of two types of litter material-sawdust and rice husk, and gender on the Korean Hanhyup broiler. Chicks (n=416) were randomly assigned in a $2{\times}2$ factorial design by type of litter material and gender. The behavior of chicken's was monitored continuously for 12 hours during the $1^{st}$ through $8^{th}$ week of age. The time spent on standing, sitting, and walking and the frequency of drinking, feeding, preening, dust bathing, flapping, and aggressive pecking, and pecking of chicken's behavior were recorded. The behavior of chickens during the starter (1 to 4 weeks) and finisher period (5 to 8 weeks) was compared to observe the changes upon maturity. Our results indicate that litter material type and gender have no effect on the behavior of chickens. However, aggressive pecking and pecking caused increment in the rice husk as compared to sawdust (P<0.05). Sawdust as litter material for bedding was found to be better than rice husk with respect to Korean Hanhyup broiler behavior.

• Smart Media Journal
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• v.13 no.5
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• pp.19-25
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• 2024

The biggest type of behavior that prevents people with developmental disabilities from entering society is aggressive behavior. Aggressive behavior can pose a threat not only to the personal safety of the person with a developmental disability, but also to the physical safety of others. In this study, we propose a wearable system using a low-power processor. The proposed system uses an IMU (Inertial Measurement Unit) to analyze user behavior, and when attack behavior is not detected for a certain period of time through an LED array attached to the developed system, an interesting LED is displayed. By expressing patterns, we provide behavioral intervention through compensation to people with developmental disabilities. In order to implement a system that must be worn for a long time in a power-limited environment, we present a method to optimize performance and energy consumption across all stages, from data preprocessing to AI model application.

• Journal of the Korean Home Economics Association
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• v.45 no.7
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• pp.93-103
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• 2007

The purpose of the study was to examine the relationships between children's emotional regulation, perceived self-competence and behavior problem. The subjects were 357 elementary school students in Busan. The questionnaires on children's emotional regulation, perceived self-competence and behavior problem were used. The results were as follows: (1) According to sex, there were significant differences in children's emotional regulation scores(venting and support pursuit), and according to birth order, there were significant differences in children's perceived self-competence scores and behavior problem scores. (2) There were significant correlations between children's emotional regulation scores and behavior problem scores, and also there were significant correlations between children's perceived self-competence scores and behavior problem scores. (3) Children's perceived self-competence and emotional regulation explained children's anxiety behavior, withdrawal behavior, aggressive behavior, distracted behavior and regressive behavior.

• Journal of the Korean Home Economics Association
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• v.42 no.3
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• pp.65-77
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• 2004

This study investigated emotional regulation, motive for emotional regulation and behavior problems of children. 64 boys and 58 girls in fourth grade and their mothers were selected for the subject. The children were interviewed about eight interpersonal conflict situations, while their mothers completed the CBCL(Child Behavior Check List). Major findings were as follows: emotional regulation, motive for emotional regulation and behavior problems differed according to the children's gender. Girls used more appropriate display rules for managing negative emotions, and more often, prosocial motives than boys. While girls displayed greater immature behavior, boys displayed more hyperactive and aggressive behavior. Negative emotional regulation was the most predictable variable for boy's behavior problems. Positive emotional regulation and prosocial motives were significant variables predicting girl's behavior problems. These findings implicate that emotional regulation and motive for emotional regulation are important factors in preventing behavior problems of school-age children.

• Korean Journal of Child Studies
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• v.22 no.3
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• pp.107-122
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• 2001

The strategies used by 274 $4^{th}$ and $6^{th}$ graders for coping with stress were assessed by the Daily Hassles Coping Scale(Min & Yoo, 1998), and their behavior problems were assayed by their mothers with the Korean version of Achenbach's Child Behavior Check List(Oh, Lee, Hong, & Ha, 1997). Data were analyzed by descriptive statistics, 2-way ANOVA, and hierarchical regressions. Findings were that girls used more passive/avoidant coping strategies than boys; $6^{th}$ graders used more passive/avoidant coping strategies than $4^{th}$ graders; $6^{th}$ grade boys had more internalized behavior problems than $4^{th}$ grade boys; $4^{th}$ grade girls had more internalized behavior problems than $6^{th}$ grade girls; passive/avoidant strategies were positively related to internalized behavior; aggressive strategies were positively related to externalized behavior; strategies of seeking social support were negatively related to both internalized and externalized behavior problems.

• Korean Journal of Child Studies
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• v.16 no.2
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• pp.5-21
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• 1995

The purpose of this study was to validate the Child Behavior Checklist(CBCL) with a population of Korean children. Subjects were 415 mothers of fourth and sixth graders selected from five elementary schools in Seoul. The CBCL(Achenbach, 1991) and the Child Behavior Questionnaire(CBQ; Rutter et als., 1970) were used as a methodological instrument. Statistics used for data analysis were ${\chi}^2$, Cramer's V, factor analysis, Pearson's r, and Cronbach's ${\alpha}$. The major findings were that 102 items of the 107-item scale were found acceptable through the item discriminant method. Nine factors (anxious behavior, hyperactive behavior, immature behavior, delinquent behavior, aggressive behavior, withdrawn behavior, thought problems, somatic complaints, other problems) were extracted by factor analysis. The correlation between the CBCL and the CBQ was examined to test criterion-related validity, and the coefficient was significant (r=.78, p<.001). Finally, the internal consistency of the CBCL appeared to be at an acceptable level (Cronbach's ${\alpha}$=.83).

• Korean Journal of Biological Psychiatry
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• v.23 no.3
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• pp.108-115
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• 2016

Aggression and aggressive behaviors, often explained as harmful social interaction with the intention of hurting or inflicting damage upon another, have been considered as an adaptive mechanism from the evolutionary psychological point of view. However, various studies on aggression and aggressive behaviors have been done with psychopathological approach as the extreme aggressive behaviors may harm themselves and others at the same time. Recently, researchers have attempted to explain aggression in terms of neurobiological substrates rather than based on traditional psychopathological and/or behavioral concept. In this regard, there have been findings of differences in neurotransmitters and their receptors, and genetic polymorphisms. In this review article, we provide a brief overview of the literature about seven most frequently reported neurotransmitters including neurohormones (serotonin, norepinephrine, dopamine, gamma-aminobutyric acid, nitric oxide, oxytocin and vasopressin) and an associated enzyme (monoamine oxidase A), which are known to be related with aggression and aggressive behaviors.

• Korean Parent-Child Health Journal
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• v.9 no.1
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• pp.55-61
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• 2006

Purpose: The purposes of this descriptive survey study were to determine the relationships between the perception on the temperament and behavior problems of their children and mothers' characteristics with preschoolers. Method: Data were collected from 125 mothers of preschoolers in Kunpo city. The instruments used for this study were Korean CBCL, childrearing burden, mother's health questionnaire, and social support. Results: There were significant differences in the behavior problems according to preschooler's temperament. Difficult children were more hyperactive, withdrawn, aggressive, and premature in behavior. Preschoolers' behavior problems showed significant relationships with mothers' health problem, childrearing burden, and social support. Conclusion: Preschoolers' behavior problems are affected by their temperament, and related with mothers' characteristics. It is important to identify parents' perception on their children's temperament and behavior problems, and the parental role education programs are necessary.

• Journal of the Korean Home Economics Association
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• v.47 no.8
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• pp.1-11
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• 2009

This study purposed to examine how school violence victims' coping behaviors are affected by locus of control and social support. Two hundred and thirty fifth and sixth graders from four elementary schools in Seoul filled out School Violence Scale reports of the Seoul Council for Safe School (2002), Attributional Style Questionnaire (Weinstein, 1980) revised by Young Sil Im(2004), Social Support Appraisal Scale (Dubow & Ulman, 1989) revised by Myung Sook Kim(1994), and Stress Coping Behaviors reports(Park & Chung, 2001). The data were analyzed with the descriptive statics and t-test. The results of this study were as follows: First, more children showed internal locus of control than external one under negative circumstances. School violence victims perceived family's support to be more important than friend's and teacher's support. Their coping behaviors were partitioned in the order of active, aggressive, passive/avoidant, and social support seeking. Second, children with internal locus of control used more passive/avoidant coping behavior than those with external one. Third, children who perceived high social support from family used more active and social support seeking coping behavior. Children who perceived low support from friends used more passive/avoidant coping behavior while those with low support from teachers used more aggressive coping behavior. In conclusion, there are differences in stress coping behaviors by victims of school violence based on their internal or external locus of control and perceived social support.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.39 no.4
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• pp.182-187
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• 2013

Keratocystic odontogenic tumors (KCOT) - previously termed odontogenic keratocysts (OKC) - are characterized by aggressive behavior and a high rate of recurrence. Histopathologically, the basal layer of KCOT shows a higher cell proliferation rate and increased expression of anti-apoptosis genes. Clinically, KCOT is frequently involved in the mandibular posterior region but is not common in the posterior maxilla. However, it should be noted that due to its expansive characteristics, KCOT involved near the maxillary sinus could easily expand to an enormous size and occupy the entire maxilla. To achieve total excision of these expanded cystic tumors in the maxilla, a more aggressive approach would be needed. In this report, we describe two cases of expansile KCOT involving the entire unilateral maxilla and maxillary sinus; they were completely excised using the Weber-Ferguson approach, showing no evidence of recurrence during the follow-up period of more than two years. In immunohistochemical analyses of the tumor specimens, p53 and p63 showed strong expression, and B-cell lymphoma 2 (BCL2) and MKI67 (Ki-67) showed moderate or weak expression, however, detection of BCL2-associated X protein (BAX) was almost negative. These data indicate that expansile KCOT possesses increased anti-apoptotic activity and cell proliferation rate but decreased apoptosis. These properties of KCOT may contribute to tumor enlargement, aggressive behavior, and high recurrence rate.