• Journal of Korean Society of Transportation
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• v.31 no.1
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• pp.3-13
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• 2013

This paper reviews the characteristics of dilemma zone by analysing the influence exerted by actual location of intersection traffic signal on behaviour of drivers approaching signalized intersection in urban area. The analysis of approach speed was based upon a 'before and after' comparison, measured at three sites where the locations of traffic signals were changed. The study demonstrated that, when traffic signal changed to yellow, the scales of dilemma zone were narrowed in case of stopping cars by moving up the starting point of the dilemma zone due to lowered spot speed. On the other hand, in case of passing cars, the end points of dilemma zone were moved further out to the rear due to increased spot speed. Therefore, changing traffic signal locations could make an impact to increase intersection safety through reducing the scales of dilemma zone. This study also found that, in cases involving vehicles with similar approach speeds, spot speeds could be differentiated following the change of signal locations due to the fact that there can be greater differences in both braking point and deceleration rate. Thus, when considering the appropriate measuring of dilemma zone, 'spot speed' rather than 'approach speed' appeared to be more appropriate criterion.

• Food Science of Animal Resources
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• v.27 no.4
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• pp.501-508
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• 2007

In order to develop a new starter for fermented milk, Lactobacillus plantarum M23 was isolated from raw milk and investigated for physiological characteristics. It showed good tyrosinase inhibitory activity compared with commercial lactic acid bacteria. The optimum growth temperature of Lactobacillus plantarum M23 was $40^{\circ}C$ and cultures took 17 hr to reach pH 4.3. Lactobacillus plantarum M23 showed more sensitivity to Penicillin-G, Oxacillin, Novobiocin, Chloramphenicol in a comparison of 12 different antibiotics, and showed most resistance to Vancomycin. It showed higher leucine arylamidase and ${\beta}-galactosidase$ activities compared to 16 other enzymes. It was comparatively tolerant to bile juice and able to survive at pH 2 for 3 hours. It showed high resistance to Escherichia coli, Salmonella typhimurium and Staphylococcus aureus with rates of 77.8%, 86.5% and 83.8%, respectively. Based on these and previous results, Lactobacillus plantarum M23 could be an excellent starter culture for fermented milk with high resistance to melanin.

• Proceedings of the KSCN Conference
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• 2003.11a
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• pp.1087-1088
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• 2003

영양사들이 영양서비스에 대한 중요성을 인지하고 있으나 과중한 급식업무에 많은 시간을 할애하고 있으며, 또한 영양사 인력부족으로 인하여 환자에 대한 영양상담이나 영양교육이 제대로 이루어지지 않은 병원도 있어 간호사들이 영양교육을 실시하는 병원도 있는 형편이다. 따라서 영양사의 원활한 업무수행 및 역할 확대를 위하여서는 이에 영향을 미칠 수 있는 의사, 간호사 등 타 의료진의 영양관리에 대한 인식파악이 필요하다고 생각되어 마산시와 창원시 및 경남 함안군에 위치한 2-3차 의료기관에 종사하는 보건의료인 중 간호사(197명)와 간호조무사(94명) 291명을 대상으로 영양관리 중 영양교육에 대한 인식 및 영양지식을 조사하였다. 환자에 대한 영양교육이 ‘매우 필요하다’에 74.2%, ‘약간 필요하다’에 32.8%를 보였으며, 간호사와 전문대 졸업이상에서 간호조무사와 고졸자에 비하여 영양교육의 필요성에 대한 인식이 높게 나타났다(P < 0.001). 영양관련 과목을 이수하지 않은 자는 47.9%, 이수한 자는 52.1%이였으며, 간호조무사(60.4%)가 간호사(42.1%)에 비하여 (P < 0.01), 그리고 근무경력 2년 이상(51.5-59.4%)에서 2년 미만(34.4%)에 비하여(p < 0.05) 영양관련 과목을 이수하지 않은 율이 높게 나타났다. 영양관련 과목 이수자 중 영양지식 습득정도는58.7%가 ‘부족’한 것으로, 40.6%가 ‘보통’인 것으로 답하여 대체적으로 부족하다고 인정하고 있었으며, 학력이 낮을수록 ‘부족’하다고 답하여 학력에 따른 유의적인 차이가 있었다(P <0.05). 영양교육 연수경험이 있는 대상자는 8.6%, 없는 자는 91.4%로 간호사에게 영양교육 연수가 거의 없는 것으로 나타났다. 영양교육 담당자의 적임자로는 영양사 69.3%, 간호사 21.3%로 답하였으며, 간호조무사는 영양교육 적임자로 영양사 82.7%, 간호사 5.8%로 답한 반면 간호사는 영양사 63.5%, 간호사 27.9%로 답하여 유의적인 차이가 있었다(p<0.001). 기회가 주어지면 영양교육에 참여하겠다는 대상자가 47.2%, 참여하지 않겠다는 자가 52.8%로 약1/2정도는 기회가 온다면 참여하겠다는 의지를 보였다. 영양교육에 참여하지 않겠다는 대상자의 43.4%가 ‘전문지식 부족’, 40.5%가 ‘전문가가 담당하는 것이 바람직하다’, 11.9%가 ‘업무량 과중’을 이유로 들었다. 환자치료 시에 영양에 대한 내용을 지도한 경험이 있는 대상자는 48.8%, 지도경험이 없는 자는 51.2%로 나타났으며, 간호사(60.9%)가 간호조무사(23.4%)에 비하여 지도경험율이 높고(p <0.001), 기혼자(57.4%)가 미혼자(44.2%)에 비하여 높으며(p < 0.05), 근무경력 2년 이상이 2년 미만에 비하여(P <0.05), 그리고 전문대 졸업 이상이 고졸에 비하여 유의적으로 높게 나타났다(p<0.001). 영양지식점수의 분포는 good group 55.3%, fair group 41.2%, Poor group이 3.4%이었으며, good group의 평균 점수는 16.1 $\pm$ 1.1점, fair group은 12.7 $\pm$ 1.4점, poor group은 6.6 $\pm$ 2.8점으로 세 군간에 유의적인 차이가 있었다(p < 0.001). 영양지식 점수의 전체평균은 20점 만점에 14.3 $\pm$ 2.5점이였다. 이상의 결과에서 환자의 영양교육 및 상담업무를 원활하게 수행하기 위하여 영양과 내에 급식관리와는 별도로 임상영양 및 영양교육을 담당하는 부서가 설치되어야 하며 영양사의 인력확보가 필요하다고 사료된다. 이상의 연구결과에서 간호사들은 영양교육이 필요하다고 인식하고 있었으나 간호사를 영양교육의 적임자로 보는 시각이 비교적 높았고 약 1/2정도는 영양교육에 참여하겠다는 의지를 가지고 있을 뿐만 아니라 실제로 영양지도를 한 경험이 있는 것으로 나타났다. 그러나 1/2 정도가 영양관련과목을 이수하지 않았으며, 91.4%가 영양교육 연수경험이 없는 것으로 나타났다.

• Restorative Dentistry and Endodontics
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• v.23 no.1
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• pp.357-365
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• 1998

목적: 치과용 수복재료의 방사선 불투과성은 매우 다양하다. 따라서 다양한 수복재료의 방사선 불투과성을 인지하여 치질과 비교하면 이차우식의 진단에 도움이 될 수 있다. 도재의 방사선 불투과성에 따라 적절한 luting cement의 선택이 가농해진다. 수복재료의 방사선 불투과성은 알루미늄 step wedge 의 후경과 방사선 불투과성과의 상관관계 의해 측정된다. 본 연구의 목적은 CAD/CAM용 도재와 이틀의 접착에 쓰이는 접착재료의 방사선 불투과성을 조사해 적절한 재료의 선택과 이차우식 진단의 효율결정에 도움이 되게 하는데 있다. 방법: 본 실험에서는 CAD/CAM용 도재인 Vita MarkII, Dicor MGC와 이의 접착에 사용되는 Z-100, 그리고 luting cement인 Duo cement, Scotchbond resin cement를 사용해 방사선 불투과성을 측정하였다. 시편 제작을 위해 도재를 저속절단기로 두께 2mm, 3mm로 절단하였으며 Z-100과 cement시편은 두께 2mm와 3mm, 직경 7.0mm의 금속 주형을 제작한 후 재료를 양쪽 면에 유리판을 대고 조임쇠로 압접하였으며 광조사기를 사용하여 각 재료마다 두 가지 두께로 10개씩 100개의 시편을 제작하였다. 치질의 시편을 얻기 위해 교정 목적으로 최근에 발거된 정상적인 상악 소구치를 저속 절단기를 사용하여 협설측 교두정을 기준 삼아 2mm, 3mm 두께로 절단하였으며 방사선 불투과성의 기준을 위해 12개의 step으로 구성된 12mm두께의 aluminum step wedge를 사용하였다. Kodak E-Speed occlusal film에 aluminum step wedge와 시편들을 위치시킨 후 70kVp, 7mA, 2.16mm aluminum filtration으로 고정된 dental X-ray unit을 사용하여 target과 film 사이의 거리는 25cm, 노출시간은 0.2초로 하여 방사선 촬영을 한 다음, 현상된 방사선 사진상에 나타난 방사선 불투과성을 X-rite 301 densitometer를 이용하여 측정한 값들의 평균을 냈다. 얻어진 결과는 one-way ANOVA Duncan test(P<0.01)로 검증하였다. 결론: 1. Dicor MGC의 방사선 불투과성은 법랑질보다 약간 높게 나타났다.(P<0.01) 2. Vita Mark Il는 상아질보다 낮은 방사선 불투과성을 보였다.(P<0.01) 3. Z-100과 Luting cement들의 방사선 불투과성은 법랑질보다 높았다. Duo cement가 방사선 불투과성이 가장 높았고 그 다음이 Z-100, 그리고 Scotchbond resin cement 순이었다. 4. Z-100과 2종류의 방사선 불투과성 luting cement들은 Vita Mark II 와 같이 사용하면 2차우식 진단에 도움이 된다.

• Journal of the Korean Society of Food Science and Nutrition
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• v.30 no.5
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• pp.1004-1009
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• 2001

Acid hydrolysates of cocoon was gained by acid hydrolysis of 2 N HCl, 11$0^{\circ}C$, 48 hours, neutralization and desalting from the cocoon. The amino acid compositions of acid hydrolysates of cocoon were glycine 43.25%, alanine 34.39%, serine 10.05% and valine 2.44%. The contents of essential amino acid was 10.05%. Food efficiency ratio of acid hydrolysates of cocoon group was equal to the reference protein, casein. Liver weight, GOT, GPT activity, serum albumin and serum total protein level of rats were not significantly different among the experimental groups. Therefore, the protein acid hydrolysates of cocoon is not of high quality. When the rat fed with high cholesterol, high lipid, and high sucrose diet was administered with 5% acid hydrolysates of cocoon, its plasma lipids concentration of acid hydrolysates of cocoon was favorably affected: its triglyceride was decreased, and the level of phospholipid and HDL cholesterol were increased. There was also an unfavorable effect: the levels of LDL cholesterol and total cholesterol went up. Therefore, the acid hydrolysates of cocoon is not a good protein food source, but is can be used a cosmetic, medical, or packing material. Further research will reveal how it will affect or improve plasma lipid.

• Journal of the Korean Society of Food Science and Nutrition
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• v.26 no.4
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• pp.733-742
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• 1997

A computerized dietary prescription and nutritional counseling system for patients having hyperlipidemia has been developed using a personal computer. This system is composed of three programs. The first program is designed to investigate dietary history of patient, such as a dietary habit and a preference of food, to find out his incorrect dietary behavior and to give him some suggestions to correct dietary behavior. The second one is developed to analyze the energy and nutrients intake using 24-hour dietary recall method and also evaluate the status of dietary intake, especially the status of dietary fat. With these data, patient can replan pattern of his food intake including in-between-meal snack as well as regular meals. The third one is the diet and menu Planning program made using food exchange table. It provides the patient with a meal pattern suitable in his weight, activity and the other status of the body. Practicing these programs, patient with hyperlipidemia can help himself very conveniently in organizing his meal plan and in improving his dietary behavior.

• Anxiety and mood
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• v.4 no.1
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• pp.42-48
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• 2008

Objective : Due to a better understanding of the pathophysiology of posttraumatic stress disorder (PTSD) and the relative limitations in the treatment of patients with PTSD, a variety of medications and treatment algorithms for PTSD have been investigated. This study was conducted to investigate the trends in the pharmacotherapy used in the treatment of inpatients with PTSD at a single university hospital in Korea. Methods : Data from 75 patients diagnosed with PTSD according to the DSM-IV criteria from January 1998 to December 2007 were collected. Demographic data and clinical data, including medications prescribed, were investigated. Results : Thirty-three of the 75 subjects included in this study were male, and 42 were female. Considering psychiatric comorbidity, depressive disorder, cognitive disorder, psychotic disorder and anxiety disorder were reported in order. Approximately 97% of the subjects were treated with antidepressants, including paroxetine in 54.7%, and 24% of the subjects were treated with two different kinds of antidepressants. In addition, atypical antipsychotics were prescribed in 33.3% of patients, mood stabilizers in 17.3%, and anxiolytics in 94.7% of the subjects. Conclusion : In our study, various kinds of antidepressants were prescribed for most patients with PTSD. Antipsychotics and mood stabilizers were added to the treatment regimens of some subjects, and anxiolytics were added to the treatment regimens of most subjects. Despite its many limitations, this study shows the prescription pattern and trends in PTSD treatment in Korea. We hope that these preliminary data would be helpful for the development and integration of a practical guideline for the treatment of PTSD in Korea.

• Korean Journal of Family Social Work
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• no.55
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• pp.129-156
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• 2017

The study was conducted to identify factors that affect the first childbearing decisions among married working women in South Korea and thereby to gain insight into effective ways to improve relatively low fertility and unfavorable workplace conditions for women of childbearing age. This study used the merged data(1st-5th waves) from Korean Longitudinal Survey of Women and Families (KLoWF), which were measured by the Korean Women's Development Institute. With 1,020 married business women, cross tab and binary logistic regression were conducted to determine which factors were significantly associated with the first childbearing decisions.

• Journal of agriculture & life science
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• v.46 no.3
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• pp.11-17
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• 2012

This study was conducted to clarify the effect of horticultural therapy on activities of daily living and interpersonal relation of institutionalized intellectual disabilities. The experiment was performed with 8 controls and 8 experiments of J institution in Yongdam, Jeju. Horticultural therapy program was performed once a week for 2 hours total 20 times from Mar. 2009 through mid July 2009. Evaluation in activities of daily living indicated that all functions except eating showed no change or worsened in controls, however, all functions except moving were improved in experimental subjects. Interpersonal relation evaluation showed no difference from 42.25 to 42.25 in control, but increased 8.62 points from 41.75 to 50.37 showing very significant change at the level of 99% in experimental subjects. Group activity evaluation increased very significantly at the level of 99% in physical/perceptual abilities, social interaction, cognitive ability, emotion status, and vocational interests. From the above results, horticultural therapy proved effectively in activities of daily living and interpersonal relation of institutionalized intellectual disabilities.

• Journal of the Korea Society of Computer and Information
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• v.25 no.4
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• pp.11-17
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• 2020

In this paper, we propose a method to build a knowledge base based on natural language processing for intelligent battlefield awareness service. The current command and control system manages and utilizes the collected battlefield information and tactical data at a basic level such as registration, storage, and sharing, and information fusion and situation analysis by an analyst is performed. This is an analyst's temporal constraints and cognitive limitations, and generally only one interpretation is drawn, and biased thinking can be reflected. Therefore, it is essential to aware the battlefield situation of the command and control system and to establish the intellignet decision support system. To do this, it is necessary to build a knowledge base specialized in the command and control system and develop intelligent battlefield awareness services based on it. In this paper, among the entity names suggested in the exobrain corpus, which is the private data, the top 250 types of meaningful names were applied and the weapon system entity type was additionally identified to properly represent battlefield information. Based on this, we proposed a way to build a battlefield-aware knowledge base through mention extraction, cross-reference resolution, and relationship extraction.