• Korean Journal of Clinical Laboratory Science
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• v.51 no.2
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• pp.260-264
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• 2019

An 84-year-old woman presented to the emergency department with a chief complaint of pressure sores of the anus. She had a urine catheter when she showed pyuria three times but had no fever. A microscopic examination revealed many grapevine-like Gram positive strains and neutrophils. After 24 hours of urine culture on blood agar, non-hemolytic mucous colonies were found and further enlarged after 48 hours of culture. The capsules were identified after India ink stain. The catalase was positive, but the tube coagulase and latex coagulase were both negative. The S. aureus was identified by Vitek-2 and mass spectrometer Vitek MS V-3 IVD. The strain was confirmed by 16S rRNA gene sequencing and multilocus sequence typing (MLST). The phenotypically atypical MRSA found in the tube coagulase and latex coagulase were both negative. MRSA often show no beta hemolysis as in this case but are rarely latex coagulase-negative. We report a woman whose urine culture showed non-hemolytic, tube coagulase-negative, and latex coagulase-negative MRSA.

• Journal of Food Hygiene and Safety
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• v.34 no.2
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• pp.199-204
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• 2019

This study aimed to generate a probability distribution model based on temperature data of frozen food storage facility as input variables for microbial risk assessment (MRA). We visited 8 food-handling businesses to collect temperature data from their cold storage warehouses. The overall mean temperature inside the storage facilities was $-20.48{\pm}3.08^{\circ}C$, with 20.4% of the facilities having above $-18^{\circ}C$, with minimum and maximum temperature values of -10.3 and $-25.80^{\circ}C$ respectively. Temperature distributions by space locations of natural and forced convection were $-22.57{\pm}0.84$ and $-17.81{\pm}1.47^{\circ}C$, $-22.49{\pm}1.05$ and $-17.94{\pm}1.44^{\circ}C$, and $-22.68{\pm}1.03$ and $-18.08{\pm}1.42^{\circ}C$ in the upper (2.4~4 m), middle (1.5~2.4 m), and lower (0.7~1.5 m) shelves, respectively. Probability distributions from the temperature data were obtained using the program @RISK. Statistical ranking was determined using goodness of fit to determine the probability distribution model. Our results show that a log-normal distribution [5.9731, 3.3483, shift (-26.4281)] is most appropriate for relative MRA conduction.

• Journal of Korea Water Resources Association
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• v.54 no.2
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• pp.93-104
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• 2021

Due to climate change the sustainable water resources management of agricultural reservoirs, the largest number of reservoirs in Korea, has become important. However, the DIROM, rainfall-runoff model for calculating agricultural reservoir inflow, has used regression equation developed in the 1980s. This study has optimized the parameters of the DIROM using the genetic algorithm (GA) based on historical inflow data for some agricultural reservoirs that recently begun to observe inflow data. The result showed that the error between the historical inflow and simulated inflow using the optimal parameters was decreased by about 80% compared with the annual inflow with the existing parameters. The correlation coefficient and root mean square error with the historical inflow increased to 0.64 and decreased to 28.2 × 103 ㎥, respectively. As a result, if the DIROM uses the optimal parameters based on the historical inflow of agricultural reservoirs, it will be possible to calculate the long-term reservoir inflow with high accuracy. This study will contribute to future research using the historical inflow of agricultural reservoirs and improvement of the rainfall-runoff model parameters. Furthermore, the reliable long-term inflow data will support for sustainable reservoir management and agricultural water supply.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.3
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• pp.408-414
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• 2021

This study aimed to improve the production of bioactive materials with antioxidant activity using a fermented Luffa aegyripia extract and improve the anticancer effect by enhancing UV absorption and inhibiting melanoma cell growth. The total phenolic content (TPC) and antioxidant activity of the fermented extract were 30.23 mg GAE/g DM and 45.12%, respectively, which was 1.4 times higher than that of the hot-water extract (HWE). The fermented extract showed a UV adsorption rate of 53.9%, which was 1.5 times higher than HWE, and it was concluded that UV absorption was increased by TPC, which was increased through the fermentation of L. aegyptiaca extracts using Lactobacillus. In the anticancer effect test, fermented and HWE extracts had carcinogenic effects of 1.0 and 2.0 mg/mL, respectively. This suggests that the increased antioxidant activity due to the increase in TPC caused by fermentation contributed to the anticancer effect. The UV absorption rate of fermented extracts was 2.4 times higher than HWE, giving them potential use as cosmetics and pharmaceutical materials with high polyphenol contents and antioxidant properties and skin cancer prevention.

• Journal of the Microelectronics and Packaging Society
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• v.30 no.2
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• pp.71-75
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• 2023

In this study, inorganic perovskite films with different compositions were grown by thermal chemical vapor deposition depending on the substrate and their optical properties were compared. Inorganic perovskite crystals were grown on SiO₂/Si and c-Al₂O₃ substrates using CsBr and PbBr₂, respectively, under the same growth conditions. Cs₄PbBr₆-CsPbBr₃ crystallites were grown on the SiO₂ with polycrystalline structure, while a CsPbBr₃ (100) dominant thin film was formed on the c-Al₂O₃ substrate with single crystal structure. From the photoluminescence measurement, CsPbBr₃ showed typical green emission centered at 534 nm with a full width at half maximum (FWHM) of about 91 meV. The Cs₄PbBr₆-CsPbBr₃ mixed structure exhibits blue-shifted emission at 523 nm with a narrow FWHM of 63 meV and a fast decay time of 6.88 ns. These results are expected to be useful for application in photoelectric devices such as displays, solar cells, and light sensors based on inorganic metal perovskites.

• Journal of Digestive Cancer Research
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• v.5 no.2
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• pp.125-129
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• 2017

A 38-year-old man presented with abdominal discomfort and was diagnosed as type 3 advanced gastric cancer with multiple liver and lung metastases (Stage IV). Endoscopic forcep biopsy revealed moderately differentiated adenocarcinoma, which stained positive HER2 (Human epidermal growth factor receptor) on immunohistochemistry. We started chemotherapy with FP (5-Fluorouracil plus Cisplatin) plus trastuzumab. After 6 cycles of FP plus trastuzumab chemotherapy, there were partial response in the liver, lung and lymph nodes metastasis. Especially, metastatic lung lesions showed remarkable improvement. Chemotherapy with FP plus trastuzamab was effective for HER2 positive advanced cancer with multiple liver and lung metastases. Through active research on target therapy about advanced gastric cancer, we expect to improve the survival rate and quality of life of patients with advanced gastric cancer who can not undergo curative resection.

• The Journal of Korean Academy of Prosthodontics
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• v.62 no.1
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• pp.6-19
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• 2024

With the advancement of Computer-Aided Design/Computer-Aided Manufacturing (CAD-CAM) technology, fabrication of dentures using this technology has gained popularity. As one of CAD-CAM technologies, digital complete denture system has been introduced, which fabricates complete dentures using subtractive manufacturing of monolithic block containing both the color of a denture base and an artificial tooth. In this case, two pairs of upper and lower dentures were fabricated for two patients. Two pairs of complete dentures were fabricated for a 74-year-old male and a 73-year-old female respectively by conventional denture fabrication method and digital method of milling. To obtain a digital complete denture, monolithic block (Ivotion, Ivoclar Vivadent, Schaan, Liechtenstein) was chosen for the materials to fabricate the digital complete dentures. An individual tray was designed using CAD software and manufactured by 3D printing technique. The final impression and interocclusal relationship were recorded using the fabricated individual tray. The final impression was scanned, and the complete denture design and try-in denture were 3D printed using CAD-CAM software. Subsequently, the monolithic block was milled, and the final dentures were fabricated and tried on patients. Previously mentioned two patient cases compared and analyzed stability, fit, speaking, mastication, aesthetics, and patient satisfaction of two pairs of dentures: one fabricated using CAD-CAM system and the other using traditional methods. This was performed to evaluate and report the findings from both denture-making approaches.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.28 no.3
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• pp.1-13
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• 2010

This research is the semantic study on the nature cognition and lyricism of pavilion builders as reflected in the pavilion tablets in the Damyang poetry culture area built during 16th century. The names of pavilions, pavilion writings and "poetry with given theme" were studied by actual site visits. The view on the nature and aesthetic awareness of the pavilion builders at the time were explored together with surrounding landscapes. Following conclusions were drawn. 1. Pavilion names borrowed phrases from the famous historical events left by the sages. Or, they took the compliment on the beautiful nature surrounding orthe academic achievement of pavilion owners as the theme, then elaborated them with thinking based on Sung Confucianism. 2. The writings of pavilion literature were the idealistic view on the nature. They think the nature and human as "object and ego are one, object and ego communicate each other, object and ego become one". 3. The nature in the 16th century was the "principle of birth-death-grow-wither" for the intellectuals. They thought that the nature is the ultimate place to return for the realization of life with self-respect. 4. The introduction of fairy land among literary activities in the pavilion was the symbolic means healing the frustrated ego. It was confirmed that they temporarily entrusted their depressed feelings by borrowing the fairy land, far from the reality. The pavilion was the space to escape from the reality and soothe the anger and discord in the reality. 5. The pavilion literature in the Damyang poetry culture area during 16th century sang their pleasure of enjoying the beautiful scenery in the rural area using their social status. The literary works also contained their agony due to the frustration of difficulty in the realization of ideal. When the intellectuals, who already mastered literature, history and philosophy, came down to rural area, built pavilions at the location with beautiful scenery, and spent time while composing poetry, it was an escape from the burden that they should take the social responsibility as the model intellectuals of the society. The pavilions in Damyang poetry-culture area during 16th century were the idealized conceptual world and the space of awareness reflecting the philosophy and thinking of the time.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• v.29 no.2
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• pp.52-62
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• 2011

By studying the classic poetry and prose with a theme of Plantain, I would like to study why Plantain has been planted in our traditional garden for a long time. Also, through this study, I want to find when Plantain was introduced to in our country. We use description study method for studying the classic poetry and prose with a theme of Plantain. As a result, we found a few things like below. First, the introduction of Plantain to our country traces back to unified Silla in the poetry of Choe Chi Won. Also, Plantain was planted and loved generally as a general garden plant in the middle of Goryeo through poetry and paintings. Second, the meaning of Plantain is like this. 1) It means development and enjoyment of arts of summer because the leaves of Plantain were used for drinking alcohol and writing and poetry instead of papers. 2) In Buddhism, Plantain was thought to awaken 'gong(空)', 'mua(無我)', and 'brevity' of lesson of Buddha by the special shape and the image of falling rain to the leaves. Also, it was used widely in Buddhist temples because of the story of 'Hye ga dan bi(慧可斷臂)'. 3) In Confucianism, it is the emblem of lesson 'a wise man tries to be strong and tries not to stop following to God'(自强不息). 4) The large leaf of Plantain is called 'bongmi(鳳尾)' thanks to the image of likeness with tails of Bongwhang(鳳凰). Third, design use of Plantain is like this. 1) The large leaf of Plantain was used for giving an image of freshness and brightness in the garden in summer. 2) Our ancestor thought 'the sound of falling rain to Plantain'(芭蕉雨聲) as a picturesque sound in summer. Also, Plantain was highly utilized because our ancestor thought Plantain is the best plant for implementing 'soundscape'. Thus, the most characteristic use of several design uses is 'acoustic use'. 3) Plantain was also planted in a indoor pot for viewing. 4) Plantain was used for making food and medicine in the palace and private house as a practical use. The limit of this study is that I mainly use the text translated into Korean of database of overall Korean classics. We hope the new things related to this study would be added up to this study by translating original texts into Korean more.

• Journal of Nutrition and Health
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• v.50 no.1
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• pp.74-84
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• 2017

Purpose: In this study, factors of metabolic syndrome and nutritional status were examined according to gender and occupations using the 2013 Korea National Health and Nutrition Examination Survey (KNHANES). Methods: This study was conducted on 1,750 workers (male : 892, female : 858) aged between 30 and 64, who participated in a health survey, health examination, and nutrition survey using the 6th 2013 KNHANES. Occupations were classified into white collar and blue collar workers, and nutrient intake was analyzed using a food frequency questionnaire. Analysis of complex sample design data through SPSS 19.0 was used for analysis. Results: The prevalence rate of metabolic syndrome among blue collar (35.1%) was higher than that among white collar workers (26.8%) in male subjects (p < 0.05) as well as in blue collar (24.8%) compared to white collar workers (8.9%) in female subjects (p < 0.001). Intake frequency per week, considering one portion by food category, showed significant differences in cooked rice (p < 0.05) and bakeries and confectioneries (p < 0.05) in make workers as well as stew and casserole (p < 0.01) and fruits (p < 0.05) in female workers. With regard to nutrient intake by occupation and gender, white collar workers consumed a greater amount of nutrients (not including total energy intake) compared to blue collar workers in both male and female workers. With regard to nutrient adequacy ratio (NAR) and mean adequacy ratio (MAR) according to gender and occupation, white collar workers showed higher numbers than blue collar workers in both male and female subjects. Conclusions: This study examined the prevalence rates of metabolic syndrome and nutrient intake according to gender and occupation. In both male and female subjects, blue collar workers showed higher prevalence rates compared to white collar workers, and their diet quality was worse than white collar workers' diet quality. Considering this result, customized nutrition education according to gender and occupation should be provided to workers to prevent diseases.