• Journal of the Korean Data and Information Science Society
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• v.27 no.4
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• pp.935-946
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• 2016

In this paper, we analyzed wage determinants of the vocational high school graduates utilizing both individual-level and work region-level variables. We formulate the models in the way wage determination has multi-level structure in the sense that individual wage is influenced by individual-level variables (level-1) and work region-level (level-2) variables. To incorporate dependency between individual wages into the model, we utilize hierarchical linear model (HLM). The major results are as follows. First, it is shown that the HLM model is better than the OLS regression models which do not take level-1 and level-2 variables simultaneously into account. Second, random effects on sex, maester dummy and engineering dummy variables are statistically significant. Third, the fixed effects on business hours and mean wage of regular job for level-2 variables are statistically significant effect individual-level wages. Finally, parental education level, parental income, number of licenses and high school grade are statistically significant for higher individual-level wages.

• Journal of Periodontal and Implant Science
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• v.28 no.2
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• pp.309-320
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• 1998

The periodontal health has been evaluated clinically by various epidemiological indices, and in researches by measurement of gingival crevicular fluid. Laser Doppler flowmetry is a reliable and objective method that allows immediate measurement of erythrocyte flux in approximately one cubic mm of the capillary bed without disturbing the tissues. The purpose of the present study was to determine whether human gingival blood flow was different according to measuring area, measuring time, and sex or not. Forty volunteers with good general and periodontal health, aged early twenties and unmarried, were selected. Laser Doppler flowmetry($floLAB^{(R)}$, Moor Instruments Ltd., England) was applied to measure the gingival blood flow of marginal gingiva, interdental papilla, attached gingiva and alveolar mucosa. The blood flow of interdental papilla was measured at 9-10 AM, 1-2 PM, and 5-6 PM. The difference of blood flow according to measuring area and measuring time was statistically analyzed by one way AOVA and Dunkan test, and the difference of blood flow between men and women was statistically analyzed by t-test. (1) Mean blood flow was significantly higher in alveolar mucosa than in the gingiva(p<0.05), and there was no significant difference in blood flow between marginal gingiva and interdental papilla(p>0.1). (2) Mean blood flow was significantly higher at 5-6 PM than at 9-10 AM and 1-2 PM(p<0.05). But there was no significant difference in gingival blood flow between 9-10 AM and 1-2 PM(p>0.1). (3) There was no significant difference in gingival blood flow between men and women(p>0.1). The above results suggest that the measurment of gingival blood flow using laser Doppler flowmetry may be clinically applicable to early determination of gingival inflammation and evaluation of healing status, but further studies are necessary to standardize and simplify the measuring procedure.

• The Journal of Advanced Prosthodontics
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• v.5 no.1
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• pp.9-15
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• 2013

PURPOSE. The purpose of this study was to determine accurately the part of the tragus to be used to form the Ala-Tragal line or Camper's line in orthognathic profile patients. MATERIALS AND METHODS. 150 dentate subjects with age of 18-40 years with orthognathic profile were sampled. Life-size lateral digital photographs of the face with fox plane were taken in natural head position. Different angles between Eye-Ear plane and occlusal plane ($OT_1$-OP), Eye-Ear plane and ala-superior border of tragus ($OT_1-AT_1$), Eye-Ear plane and ala-middle border of tragus ($OT_1-AT_2$) and Eye-Ear plane and ala-inferior border of tragus ($OT_1-AT_3$) were calculated using computer software package, AutoCAD 2004. From the three angles formed by the Eye-ear plane ($OT_1$ or FH plane) and the ala-tragal lines, the one closest to the angle formed between Eye-Ear plane ($OT_1$) and occlusal plane (OP) was used to determine the occlusal plane of orientation. The obtained results were subjected to ANOVA F test, Tukey's Honestly significant difference test, followed by Karl Pearson coefficient of correlation test. P values of less than 0.05 were taken as statistically significant. RESULTS. The mean of base line angle i.e. $OT_1$-OP angle ($11.96{\pm}4.36$) was found to be close to $OT_1-AT_2$ angle ($13.67{\pm}1.93$) and $OT_1-AT_3$ angle ($10.31{\pm}2.03$), but $OT_1$-OP angle was found to be more closer to $OT_1-AT_3$ angle. Comparison of mean angles showed that $OT_1$-OP angle in both males (11.68) and females (12.51) is close to $OT_1-AT_3$ angle (males- 11.01, females- 11.95). CONCLUSION. The line joining from ala to the lower border of the tragus was parallel to the occlusal plane in 53.3% of the subjects. There was no influence of the sex on the level of occlusal plane.

• The Journal of Korean Society for School & Community Health Education
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• v.12 no.2
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• pp.13-27
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• 2011

Objectives: This study aims to analyze recognition and problems of in Daegu local college students on sexual violence and figure out major factors to prevent sexual violence and to use as necessary basic resources for the improvement of individual and social recognition and effective sexual education. Methods: The Data from 255 students (85%) out of 300 excluding questionnaires with insufficient answers were under analysis using Excel Program and SPSS Win 17.0 for cross-tabulations and correlation analysis. Significance test were performed using $x^2$-test. Results: 1) As to recognition of sexual violence by gender, 88.2%(60) of male and 91.4%(171) of female students conceived the current sexual violence level is hazardous which shows female students had slightly higher recognition. 2) As to recognition of sexual education by gender, both conceived it for equipping proper value system of sex(55.9% of male & 61.5% of female student). 3) As to prevention and coping with sexual violence by gender, 58.8% of male students and 65.2% of female students answered that prevention is possible. 4) As to the correlation between sexual violence factors, it showed positive (+) correlation in the experience of sexual education and the recognition of sexual violence level, in the recognition of sexual violence level and the recognition of sexual violence responsible scope, and in the possibility of sexual violence prevention and the recognition of sexual crime prevention law. 5) As to the recognition and measurement by experience of sexual education, among those who answered the current sexual violence level was hazardous 91.8% had previous sexual education experience and 83.3% had no experience. 6) As to the recognition and measurement of sexual violence by experience of sexual violence (self-determination), those with sexual education experience (79.8%) had little experience in sexual violence than those with not (91.6%). 7) As to the recognition and measurement of sexual violence by the possibility of preventing sexual violence, it showed statistically significant difference in the reason of increase of sexual violence(p<0.01). Conclusions: Accordingly, to provide systematic and sustainable sexual education, individualized education considering gender, individual development rather than standardized group education in its teaching method is necessary, and follow-up evaluation and feed-back system should be implemented to assess achievement and recognition of sexual education.

• Journal of Nutrition and Health
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• v.3 no.2
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• pp.101-106
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• 1970

Radioactive Phosphorus $(^{32}P)$ was administered intramuscularlly to the newly hatched chicken in the purpose of determination of the uptake and the distribution, as related to sex and hour differences of the several organs of the bodies. $2\;{\mu}\;of\;^{32}P$ was administered to each chick, and the distribution of 32P was observed in 1 hour and 24 hours after administration. In this experiment 80 heads of chicken were used(40 chicken were one day and 40 chicken were 7 days old) and the results obtained as follows: 1. The tissue showed an uptake rate of $^{32}P$ dose per 100 milligram of tissue in one day old chicken, with the following sequence: Males (1 hour): Femur. Liver. G., Muscle. Testis. Brain (24 hour): Femur, Testis, Gastrocnemius Muscle, Liver, Brain. Female(1 hour): Femur, Liver, Gastronemius Muscle, Ovary, Brain. (24 hour): Femur, Liver, Gastrocnemius Muscle, Ovary, Brain. 2. In 1 hour, the uptake rate of $^{32}P$ of the tissues showed significant difference between the male and the female except the gastrocnemius muscle and the brain in one day old group, but they were no significance except the testis and ovary after 24 hours. 3. The distribution of $^{32}P$ of the tissues exhibited higher in 1 hour than in 24 hours except the femur, the brain of the male and female, the brain and gastrocnemius muscle of the female in one day old group. 4. The tissue showed an uptake rate of $^{32}P$ dose per 100 miligram of tissue in 7days old chicken, with the following sequence: Male (1 hour): femur, liver, gastrocmenius muscle, testis, brain. (24 hour): femur, testis, gastrocmenius muscle, liver, brain. Female(1 hour): femur, liver, gastrocmenius muscle, ovary, brain. (24 hour): femur, ovary, liver, gastrocmenius muscle, brain. 5. The distribution of $^{32}P$ of the tissues showed no significant difference between the male and the female except the testis and ovary after 24 hours in 7 days old chicken group. 6. The distribution of $^{32}P$ the tissues exhibited higher in 1 hour in 24 hours except the femur, the brain of the male and the female, the brain and the ovary of the female in 7 days old chicken group.

• Korean Journal of Forensic Psychology
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• v.12 no.1
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• pp.1-13
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• 2021

This study analyzed the use of expert reports in the investigations and trials of cases of sexual violence against people with intellectual disabilities. A total of 670 alleged sexual assault cases against victims with intellectual disabilities were analyzed. Results showed that 97.5% of the cases included at least one expert report. In most cases(91%), the expert reports of statement validity assessment were included. Additionally, doctor's note (41.1%) from obstetricians and Psychiatrists, intermediary reports(36%), and expert witnesses(psychologists') reports (9.5%) were included. In 80 cases (44.4%) of the 180 cases in which a victim' statement credibility was in question during the trial, judges cited the expert's reports of statement validity assessment as the basis for the judgment on the reliability of the victims' accusation. The frequency of citing the report was higher when the victim was under the age of 13, or when the defendant was found guilty. Regrading the report content, the evaluations of criteria-based content analysis(CBCA) was most frequently cited, while the victim's psychological status, cognitive limitation, as well as possibile contamination of victim's account, were also mentioned in the ruling statements. Results showed agreement between experts' statement validity assessments and judges' determinations in 79 cases out of the 80 cases Finally, this study discussed ways to utilize expert options.

• Korean Journal of Forensic Psychology
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• v.11 no.2
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• pp.211-239
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• 2020

This study examined characteristics and judges' judgments regarding sexual violence cases against individuals with intellectual disabilities by analyzing total 716 cases of court decision. Of 716 cases, 6.0% sentenced not guilty, 53.5% imprisonment, 36.7% suspended sentence. More than half of the victims had experienced sexual assault more than one time with the tendency of repeating being higher when the accused were relatives or acquaintances to the victims. In half of the total cases, the victims were not able to specify the time of incidents. Only in 20% of the cases, there was actual compulsion but in the remaining cases, there was no clear coercion used during the crimes. There are three issues regarding court's decision of sexual assault case against individuals with intellectually disabilities; (1) credibility of victims' statement, (2) inability of resist during the crimes, and (3) whether the accused were aware of the victims's disabilities. In the judgment of credibility of statement, consistency of statement was the criterion that was used most frequently, being followed by specificity of statement, motivation for false accusation, cognitive capacity of victim, and reports of statement validity analysis in the order. The most frequently used criterion of inability to resist was the victim's statement and attitude, followed by the statement and attitude of the accused, the victim's knowledge and understanding of sexuality in the order. Regarding to the awareness of disabilities on the part of the accused, the statement and attitude of the accused was most frequently used, the victims' communicative abilities, duration of relationship, and daily life competence in the order. There were no differences in the rulings and issues according to levels of disabilities and gender. When victims were under 13 credibility of statement became more argues but the awareness of disabilities less frequently than the cases of victims who were 13 or older.

• International Journal of Molecular Medicine
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• v.43 no.2
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• pp.1105-1113
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• 2019

Epigenetic modifier lysine demethylase 3a (Kdm3a) specifically demethylates mono- and di-methylated ninth lysine of histone 3 and belongs to the Jumonji domain-containing group of demethylases. Kdm3a serves roles during various biological and pathophysiological processes, including spermatogenesis and metabolism, determination of sex, androgen receptor-mediated transcription and embryonic carcinoma cell differentiation. In the present study, physiological functions of Kdm3a were evaluated during embryogenesis of Xenopus laevis. Spatiotemporal expression pattern indicated that kdm3a exhibited its expression from early embryonic stages until tadpole stage, however considerable increase of kdm3a expression was observed during the neurula stage of Xenopus development. Depleting kdm3a using kdm3a antisense morpholino oligonucleotides induced anomalies, including head deformities, small-sized eyes and abnormal pigmentation. Whole-mount in situ hybridization results demonstrated that kdm3a knockdown was associated with defects in neural crest migration. Further, quantitative polymerase chain reaction revealed abnormal expression of neural markers in kdm3a morphants. RNA sequencing of kdm3a morphants indicated that kdm3a was implicated in mesoderm formation, cell adhesion and metabolic processes of embryonic development. In conclusion, the results of the present study indicated that Kdm3a may serve a role in neural development during Xenopus embryogenesis and may be targeted for treatment of developmental disorders. Further investigation is required to elucidate the molecular mechanism underlying the regulation of neural development by Kdm3a.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.13 no.1
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• pp.163-176
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• 2002

Objectives：This study was designed to investigate the temperamental characteristics and the differences of temperamental characteristics in Korean children according to the sociodemographic and family environment factors using Toddler Temperament Scale(TTS). Methods：The samples consisted of 1,175 children who were attending twenty-five Samsung Child Care Centers nationwide. Both Korean version of TTS and child developmental questionnaire(designed by the Department of Psychiatry, Samsung Medical Center) were distributed to the parents of these children. Score of 9 temperamental categories was determined using the result of TTS, and determination of 5 temperamental clusters was conducted by the Fullard's criteria. Statistical analyses were performed according to the sex, birth order, existence of siblings, residential city, residential province, marital state of child's parents, and parental relationship to compare the scores of temperamental categories and the distribution of temperamental clusters. Results：The distribution of temperamental clusters was as follows；Easy 35.8%, Intermediate Low (IL) 33.1%, Intermediate High(IH) 11.1%, Slow-To-Warm-Up 6.3%, and Difficult 13.6%. Some of 9 temperamental categories were statistically different according to the sex, birth order, existence of siblings, residential city, residental province, marital state of child's parents, and parental relationship. From the viewpoint of 5 temperamental clusters, there were statistically more Easy and less Difficult children in good relation between each parent(p=.022). In spite of no statistical significance, the children in conditions of first-born, non-existence of siblings, middle or small residential city, Chung-Cheong province, married state of parent had a tendency to be easier to care. Conclusions：The toddler temperamental characteristics of Korean children showed some differences in several sociodemographic and family environment factors. We could confirm that the 'Goodness of Fit' was very important in child temperament.

• Clinical and Experimental Reproductive Medicine
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• v.27 no.2
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• pp.117-131
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• 2000

Objectives: To develop a new immunohistochemical marker system for supplementation of the Noyes histological classification of the endometrium in women of child bearing age with regular menstrual cycles, and to employ this system to evaluate pathologic factors involved in endometriosis, and thus to ascertain if it is useful in diagnosis. Materials and Methods: Endometrial biopsies were sampled from the posterior fundus of 41 (24 proliferative phases, 17 secretory phases) women with regular menstrual cycles (28-32 days), and each sample was immunohistochemically stained according to Noyes et al (1975) for determination of expression for estrogen receptor (ER), progesterone receptor (PR), integrin ${\alpha}_1$, ${\alpha}_4$, ${\beta}_3$, COX-1 and COX-2. Then, the PR, integrin ${\beta}_3$ and COX-2 which were clearly expressed in the luteal phase was with endometrial samples were obtained from 20 cases of normal patients (group 1) and 25 cases with endometriosis (group 2) after confirming the day of ovulation by sex steroid level measurements 7-8 days after ovulation Results: In the regular menstruation group the expression of ER showed a tendency to be increased in the proliferative phase and decreased in the secretory phase, and was the highest in the proliferative phase. However, PR in the stromal cells showed no change in the entire menstrual cycle while in the epithelial cells, PR reached a peak in the late proliferative phase and was almost absent in the secretory phase. Integrin (${\alpha}_1$, ${\alpha}_4$, and ${\beta}_3$ expression in the epithelial cells was absent in the proliferative phase but ${\alpha}_1$ was strongly expressed starting from the early secretory phase into the entire secretory phase. ${\alpha}_4$ was expressed strongly in the early and mid secretory phases and disappeared in the late proliferative phase, while ${\beta}_3$ appeared after the mid secretory phase and continued to be expressed until the late secretory phase. Expression in the stromal cells was weak overall and did not show any cyclic pattern. COX-1 expression was shown as a cyclic pattern in the stromal and epithelial cells and was particularly strongly expressed in the mid secretory phase of epithelial cells, and in the mid secretory and menstruation phase of stromal cells. In the endometrial epithelial cells there was strong expression during the entire cycle with stronger expression in the secretory phase compared to the prolferative phase. COX-2 was clearly expressed in the late proliferative, early and mid secretory phases in the stromal cells. No expression was observed in the proliferative phase of the epithelial cells, but which began to appear in the early secretory phase reaching a significant pattern from the mid secretory phase onwards. There was almost no expression in the stromal cells. In the cases with endometriosis showing normal endometrial maturation according to the Noyes classification, PR expression was increased while Integrin-${\beta}_3$의 expression was significantly decreased compared to the normal group. Also, COX-2 expression was slightly decreased in the stromal cells of patients with endometriosis while it was significantly increased in the stromal cells. Conclusion: Immunohistochemical markers can supplement the original Noyes classification of histological endometrial dating and therefore ascertain existing pathologic conditions. Particularly for patients with endometriosis with normally mature endometrial cells, changes in COX-2 and integrin expression patterns may assist in elucidating pathophysiologic mechanisms and therefore aid in the diagnosis of abnormal implantation conditions, and consequently determine a treatment modality.