• Neonatal Medicine
• /
• v.18 no.2
• /
• pp.310-319
• /
• 2011

Purpose: The aim of this study was to investigate the effect of perinatal risk factors on brain maturation and the relationship of brain maturation and neurodevelopmental outcomes with brain maturation scoring system in brain MRI. Methods: ELBWI infants born at the Seoul National University Children's Hospital from January 2006 to December 2010 were included. A retrospective analysis was performed with their medical record and brain MR images acquired at near full term. We read brain MRI and measured maturity with total maturation score (TMS). TMS is a previously developed anatomic scoring system to assess brain maturity. The total maturation score was used to evaluate the four parameters of maturity: (1) myelination, (2) cortical infolding, (3) involution of glial cell migration bands, and (4) presence of germinal matrix tissue. Results: Images from 124 infants were evaluated. Their mean gestational age at birth was 27.1${\pm}$2.1 weeks, and mean birth weight was 781.5${\pm}$143.9 g. The mean TMS was 10.8${\pm}$2.0. TMS was significantly related to the postmenstrual age (PMA) of the infant, increasing with advancing postmenstrual age (P<0.001). TMS showed no significance with neurodevelopmental delay, and with brain injury, respectively. Conclusion: TMS was developed for evaluating brain maturation in conventional brain MRI. The results of this study suggest that TMS was not useful for predicting neurodevelopmental delay, but further studies are needed to make standard score for each PMA and to re-evaluate the relationship between brain maturation and neurodevelopmental delay.

• Journal of the Korean Geographical Society
• /
• v.40 no.1 s.106
• /
• pp.27-46
• /
• 2005

Land suitability assessment(LSA) is a useful method to assess land characteristics according to its physical, locational, and environmental characteristics, and then to classify it into several categories based on its usability and the necessity for conservation. Therefore, the credibility of this assessment result depends on the rationality of assessment method such as computation of suitability values and the criteria of ranking the land grade. This study focused on identifying problems in current LSA method by critically reviewing it, and aimed to suggest a suitable method for the assessment of land suitability. As a alternative method in this study, linear transformation method was used for scoring factors instead of critical values and the weight for each assessment factor. and all values of those factors were added to produce comprehensive suitability values. Those values were ordered and categorizied with suitability level based on the ratio of square measure. After comparing existing LSA method to the suggested alternative method, it is concluded that the alternative method was more suitable to assess the characteristics of lands than existing LSA method. This method was also suitable to represent the characteristics of various assessment factors. Field survey using satellite image clearly revealed the suitability of the alternative method compared to an existing method of land assessment. Furthermore, the alternative method of grading the land suitability improves the problem of using standardiZiation method and gives more flexibility, which makes this method very rational.

• Korean Journal of Psychosomatic Medicine
• /
• v.11 no.1
• /
• pp.15-24
• /
• 2003

Objectives: The object of this study was to compare perceived stress and quality of life among patients with HIV infection, patients with pulmonary tuberculosis and normal controls. Methods: Stress response inventory(SRI) and Symptom checklist 90-Revised(SCL-90-R) were used to measure perceived stress responses and psychopathology. Smithklein Beecham quality of life scale was used to measure quality of life. Results: Patients with HIV infection scored significantly higher on scores of tension, anger, depression, fatigue and frustration subscale of the SRI than those with pulmonary tuberculosis and normal controls. Scores of the SCL-90-R, somatization, depression, anxiety, hostility, phobic anxiety, paranoid ideation and psychoticism subscale were also significantly higher in patients with HIV infection than those with pulmonary tuberculosis and normal controls. Patients with HIV infection scored significantly lower in quality of life than those with pulmonary tuberculosis. In patients with HIV infection, age had a significantly negative correlation with scores of somatization, obsessive-compulsive, interpersonal sensitivity, phobic anxiety, paranoid ideation and psychoticism subscale of the SCL-90-R. but the level of education had a significantly positive correlation with somatization, obsessive-compulsive, interpersonal sensitivity, phobic anxiety, paranoid ideation and psychoticism subscale of the SCL-90-R. Conclusion: The results suggest that patients with HIV positive were likely to have higher levels of perceived stress response and psychopathology, and lower quality of life than those with pulmonary tuberculosis and normal controls.

• Journal of agricultural medicine and community health
• /
• v.34 no.2
• /
• pp.234-243
• /
• 2009

Objectives: The aim of this study was to establish the basic data for adolescents' mental health states in a community. Methods: 466 middle school and high school students were analyzed by visit-survey with an organized questionnaire from March to June 2008. K-YSR for measurement of mental health was used. Results: The score of total behavior (p<0.01), anxious/depressed (p<0.05), though problems (p<0.001), attention problems (p<0.001), aggressive behavior (p<0.01) and internalizing problems (p<0.05) in girls appeared significantly higher as compare to those the boys. Also, total competence (p<0.05) in high school students appeared significantly lower as compare to those middle school students. Withdrawn (p<0.01) in high school students appeared significantly higher as compare to those middle school students. The though problems (p<0.001) and aggressive behavior (p<0.05) in middle school students appeared significantly higher as compare to those high school students. The distribution of clinical group was school 93.8%, total competence 32.6%, attention problems 8.8%, total behavior problems 8.6%, anxious/depressed 7.7%, aggressive behavior 6.4% et. al. The social (p<0.05), anxious/depressed (p<0.05), attention problems (p<0.01), internalizing problems (p<0.05) and externalizing problems (p<0.05) in girls of clinical group were more frequent significantly as compared to those the boys of clinical group. Also, the social (p<0.01) in middle school students of clinical group was more frequent significantly as compared to those the high school students of clinical group. Conclusions: This study result will be significant in that it can provide basic data for the school mental health services.

• Journal of KIISE:Databases
• /
• v.33 no.5
• /
• pp.538-550
• /
• 2006

XML Keyword search enables us to get information easily without knowledge of structure of documents and returns specific and useful partial document results instead of whole documents. Element level query processing makes it possible, but computational complexity, as the number of documents grows, increases significantly overhead costs. In this paper, we present document-level ranking scheme over XML documents which predicts results of element-level processing to reduce processing cost. To do this, we propose the notion of 'keyword proximity' - the correlation of keywords in a document that affects the results of element-level query processing using path information of occurrence nodes and their resemblances - for document ranking process. In benefit of document-centric view, it is possible to reduce processing time using ranked document list or filtering of low scored documents. Our experimental evaluation shows that document-level processing technique using ranked document list is effective and improves performance by the early termination for top-k query.

• Journal of The Korean Association For Science Education
• /
• v.35 no.2
• /
• pp.325-331
• /
• 2015

In this study, we investigated the effects of individualized learning adapted to students' conceptions using smart devices in science instruction upon students' conceptual understanding, the retention of conception, achievement, learning motivation, enjoyment of science lessons, and perception about individualized learning using smart devices. Four seventh-grade classes at a coed middle school in Seoul were assigned to a control group and a treatment group. Students were taught about molecular motions for seven class periods. Two-way ANCOVA results revealed that the scores of a conception test, the retention of the conception test, a learning motivation test, and an enjoyment of science lessons test for the treatment group were significantly higher than those for the control group. Although the score of the treatment group was higher than that of the control group in the achievement test, the difference was not statistically significant. Students' perceptions about individualized learning using smart devices were also found to be positive.

• Korean Journal of Soil Science and Fertilizer
• /
• v.37 no.6
• /
• pp.357-364
• /
• 2004

Modern agriculture depending on chemicals such as fertilizers and pesticides gave rise to questions about long-term sustainability of agriculture in relation to degradation of soil quality. Improving soil quality is prerequisite to sustain biological productivity, maintain environmental quality, and promote plant and animal health. Assessment and monitoring of the health and quality of soil is necessary to provide opportunity to evaluate and redesign soil management system for sustainability. To develop the soil quality assessment method, we collected national data on soil properties of paddy and upland and attempted to evaluate the data in aspect of soil quality by the process of selecting a minimum data set (MDS), scoring the soil properties and calculating soil quality index (SQI) integrating the score of each soil property. This approximation indicated that soil quality index was in the order of paddy soil, upland soil and plastic film house soil.

• The Journal of the Korea Contents Association
• /
• v.21 no.6
• /
• pp.19-34
• /
• 2021

The aim of this study is verifying the effects of chatbot's error types and structures of error message on attitude, behavior intention towards the chatbot and perceived usability of the chatbot. The error types of chatbot are divided into 'experience' error and 'agency' error, which set different expectancy level, according to mind perception theory. The structures of error message were either unstructured condition composed of error specification only or structured condition composed of apology, explanation and willingness of improvement. It was found that score of perceived usability was higher in experience error condition than agency error condition. Also, all three scores of dependent variables were higher in structured error message condition than unstructured error message condition. Furthermore, expectation gap of experience didn't predict the dependent variables but expectation gap of agency predicted all three dependent variables. Finally, the tendency of interaction effect between the error type and the structure of the error message on expectation gap of agency was observed. This study confirmed the mitigating effect of structured error messages and the possibility that these effects may vary by the type of error. The result is expected to be applicable to design of error coping strategies that enhance user experience.

• Korean Journal of Psychosomatic Medicine
• /
• v.12 no.1
• /
• pp.30-37
• /
• 2004

The objective of this study was to make a comparison between chronic superficial gastritis and gastric ulcer patients regarding stress responses, anger expression and alexithymia. The subjects included 100 patients with chronic superficial gastritis and 40 patients with gastric ulcer confirmed by gastroscopy. Stress responses were measured by the Stress Response Inventory(SRI) and anxiety, depression, somatization and hostility subscales of the Symptom Checklist-90-revised(SCL-90-R). Anger expression and anger suppression were assessed by the Anger Expression Scale. The level of alexithymia was assessed by the Toronto Alexithymia Scale(TAS). Multiple regression analysis showed that the patients with chronic gastritis scored significantly higher on tension subscale and somatization subscale of the SRI, and anxiety subscale of the SCL-90-R than those with gastric ulcer. However, no significant differences were found in the score of anger expression and anger suppression subscales and total score of TAS between the two groups. In chronic gastritis patients, women scored significantly higher on somatization subscale of the SRI than men, whereas in gastric ulcer patients, men scored significantly higher on somatization subscale of the SRI than women. These results suggest that chronic gastritis patients are more likely to have higher level of stress responses and higher susceptibility to stress than gastric ulcer patients. In addition, in chronic gastritis patients, women are more likely to somatize than men, but in gastric ulcer patients, men are more likely to somatize than women. However, there were no differences between the two groups in anger expression, anger suppression and alexithymia.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.44 no.10
• /
• pp.1558-1566
• /
• 2015

The purpose of this study was to examine dietitians' perception of importance about standards of foodservice management associated with long-term care hospital accreditation. This study was carried out through a postal survey consisting of 500 questionnaires, and 157 returned questionnaires were used in the statistical analysis. The results were summarized as follows. Average scores of perception of importance were 4.54/5 points in foodservice production management domain, 4.56/5 points in foodservice facilities management domain, and 4.70/5 points in foodservice sanitation domain. The average scores of importance of long-term care hospitals without accreditation were significantly (P<0.05) lower than those of hospitals with accreditation in items of 'establishment of ventilation equipment in kitchen', 'establishment of hand-washstand in toilet (warm-water, soap)', 'setup of sterilizing foothold in entrance of kitchen and toilet', 'division and use of knife, chopping board, gloves, and utensils before and after cook', 'establishment of cleaning plan and cyclic practice', and 'recording of receiving diary'. Results indicate that there is a need to supplement a casebook of regulations by suggesting detailed and critical limits in the case of below average points of importance. A manual, including HACCP standards for foodservice management of long-term care hospitals, is needed, along with education and webpage for comparing notes on accreditation of long-term care hospitals.