• KSII Transactions on Internet and Information Systems (TIIS)
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• 제16권12호
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• pp.3943-3959
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• 2022

People are constantly exposed to stress and anxiety environment, which could contribute to a variety of psychological and physical health problems. Therefore, it is particularly important to identify psychological stress in time and to find a feasible and universal method of stress reduction. This research investigated the influence of different music, such as relaxation music and natural rhythm music, on stress relief based on Electroencephalogram signals. Mental arithmetic test was implemented to create a stressful environment. 23 participants performed the mental arithmetic test with and without music respectively, while their Electroencephalogram signal was recorded. The effect of music on stress relief was verified through stress test questionnaires, including Trait Anxiety Inventory (STAI-6) and Self-Stress Assessment. There was a significant change in the stress test questionnaire values with and without music according to paired t-test (p<0.01). Furthermore, a model based on Transformer for stress level classification from Electroencephalogram signal was proposed. Experimental results showed that the method of listening to relaxation music and natural rhythm music achieved the effect of reducing psychological stress and the proposed model yielded a promising accuracy in classifying the Electroencephalogram signal of mental stress.

• Journal of Chest Surgery
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• 제21권5호
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• pp.850-855
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• 1988

From July 1983 to June 1988, twenty six patients underwent mitral valve repair for pure mitral stenosis[21 patient] or for mitral stenosis with a mild degree of regurgitation[5 patient] at Chonbuk National University Hospital. All patients underwent open mitral commissurotomy and 17 patients required to additional procedures for relief of obstructive subvalvular lesion. There was no operative death. The patients were followed from one to sixty months[mean 24. 1Mo.] One late death occurred due to cardiac and renal failure 10 month postoperatively. Of the 25 surviving patients at the time of follow-up, 17 patients[68%] were in NYHA functional class I and 8 patients[32%] were in class II.

• 한국안전학회지
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• 제14권3호
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• pp.168-173
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• 1999

The purpose of this study is to analyze death injuries and operation troubles of urban transit. No difference was shown in death rates between Line 1 of Pusan urban transit and Line 5, 7, And 8 of Seoul metropolitan transit. And relief time by another train did not depend upon the number of crews. We concluded that thorough inspection and preventive maintenance of trains and facilities are necessary for safe and timely service of urban transit.

• 융합정보논문지
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• 제10권5호
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• pp.75-82
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• 2020

본 연구는 치매안심센터의 치매환자 보호자에게 미충족 치매정보를, 종사자에게는 프로그램에 대한 효과성을 파악하기 위한 서술적 조사연구이다. 대상자는 S시 25개 자치구의 치매안심센터에서 보호자 114명, 종사자 217명을 대상으로 하였으며, 기간은 2019년 11월 1일부터 2020월 1월 30일까지이다. 연구도구 중 미충족 치매정보는 7문항의 Likert 5점 척도, 위기관리수준은 6항목, 10문항의 Likert 5점 척도로 구성된 설문지를 사용하였다. 연구결과 우울한 보호자가 그렇지 않은 보호자에 비해 미충족 치매정보를 경험할 비율이 12.3배 높은 것으로 나타났다(p<.001). 위기관리수준이 미흡하다고 인식한 종사자일수록 프로그램 효과성이 8.98배 높게인식하였으며(p=.004), 사회복지사가 간호사에 비해 2.81배나 높게인식하였다(p=.091). 결론적으로, 치매안심센터 서비스 수준을 단기간에 최고로 만들기 위한 일방적 정책보다 지역사회 주민들과 다양한 의견교환을 통해 그들의 필요를 충족해 나가는 쌍방향 운영이 필요하다.

• 자원환경지질
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• 제30권1호
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• pp.67-77
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• 1997

아프리카 동부의 탕가니카호수에서의 탄성파자료는 이 지역이 복잡한 판구조적, 구조적 및 층서적 역사를 가지고 있음을 보여주고 있다. 탕가니카호수의 열곡은 열곡의 주향을 따라 경사방향이 교대로 나타나는 반지구대(half-graben)로 구성되어 있으며 인접한 반지구대는 주향방향의 수용대 (收容帶; accommodation zone)로 분리되어 있다. 기반암이 비교적 높이 올라와 있는 수용대의 양쪽 면은 경계부 단층이 발달되어 있으며, 기복이 높은 수용대는 침강이 낮고 퇴적량이 적으며 기반암이 높이 올라와 있고 열곡발달 초기에 형성되었다. 또다른 수용대의 형태는 낮은 기복을 갖으며 상당량의 퇴적물을 갖고 단층이 발달된 배사구조로 구성되어 있다. 이런 지역은 열곡이 진행되어 가는 곳이다. 이러한 구조적 형태는 탕가니카 호수에서의 퇴적양상에 영향을 미치게 된다. 즉, 구조는 분지와 퇴적섬(堆積心; depocenter)이 존재하는 곳에 영향을 미칠 뿐만 아니라 분지 내에서 공간적, 시간적으로 퇴적분포에 영향을 미치게 된다. 한편, 열곡 측면지형은 호수로 유입하는 유수 (drainage)의 형태나 퇴적물에 영향을 준다.

• 대한한의학회지
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• 제28권4호
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• pp.74-85
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• 2007

Objective : In this study we wanted to confirm if proper stimulation and de-Qi of traditional Korean medical acupuncture could increase hot flash relief efficacy. Design : A randomized controlled, single blind study. We used two modalities of acupuncture, one with optimal stimulation [Study group; Korean medical acupuncture (TKMA)] and one with minimal stimulation [Control group; Minimal acupuncture (MA)]. Same acupoints [PC6(內關), HT8(少府), HT7(神門), LI4(合谷), ST36(足三里), SP6(三陰交), Ren4(關元)] were used in both groups. Fifty-two patients were treated twice a week for 8 weeks, and follow up was done after 4 weeks from the last treatment. Patients were checked hot flash VAS (visual analog scale), frequency and duration every time they visited. Results : Hot flash relief efficacy by 100mm hot flash VAS was obvious in both groups. Hot flash VAS scores of study group were smaller than the scores of control group at the early stage (3rd, $4^{th}$ and $8^{th}$ visit), but there wasn't a remarkable difference between study and control group at the end of the trial. Besides, diminution of hot flash VAS was faster and more even in the study group than control group by visualization using 'Box plot'. We compared frequency and duration of hot flash, 100mm sweating, palpitation, sleep disturbance VAS, and Kupperman Index, MENQOL, Patient's global assessment score. Both groups showed definite decrease from the baseline, but the difference was not statistically significant. There wasn't any adverse event. Hot flash relief efficacy was kept in most patients after 4 weeks' follow-up. Conclusion : Acupoint combination by Traditional Korean medical theory is effective on hot flashes and hot flash relief efficacy was faster and more even in optimal stimulation than minimal stimulation.

• 한국항만학회지
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• 제8권2호
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• pp.1-35
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• 1994

The main arterial which runs through the in City of Pusan, carries about 60% of downtown traffic or more, maintains about 20% yearly increase in traffic is severely suffering from the traffic congestion because of concentrated traffic volumes regardless of peak-time periods. The purpose of this study was to grasp the traffic, geometric, and signal conditions of the main arterial through the Videologging System Techniques, perform the transportation system analyses, and finally suggest the improvements which could increase the travel capacity, reduce the average delay and fuel consumption with the optimal conditions of signal system. The following conclusions were drawn : firstly the traffic system should be shifted for the travel distribution on the arterial during the peak time periods, secondly the roadway system of the arterial reviewed for left-turn traffic during the peak time periods, and thirdly the signal system of intersection reconstructed for signal optimization or progression within the range of cycle length suggested.

• Archives of Reconstructive Microsurgery
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• 제17권1호
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• pp.36-41
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• 2008

Surgical treatment of compressive ulnar neuropathy at the elbow has been performed with a wide variety of techniques. Among these techniques, anterior submuscular transposition of the ulnar nerve has been regarded as the method of choice by many authors. It has many advantages including a low recurrence rate, scar-free vascular bed, and protection from repeated trauma to the nerve. However, anterior submuscular transposition is technically demanding and requires more extensive soft tissue dissection. On the other hand, anterior subfascial transposition is less invasive, requires a relatively shorter operation time than the submuscular technique, and also can be done safely even in patiensts with elbow arthritis. We evaluated the clinical results of anterior submuscular transposition compared with anterior subfascial transposition. Fifteen patients underwent anterior submuscular transposition and ten patients underwent anterior subfascial transposition of the ulnar nerve. The mean follow-up time was 15 months (range 10 to 38 months) in the anterior submuscular transposition group and 7 months (range 6 to 15 months) in the anterior subfascial transposition group. According to the outcome status determination algorithm devised by Mowlavi, 3 patients (20%) showed total relief, 10 patiensts (66.7%) improvement and 2 patients (13.3%) no changes in the anterior submuscular transposition group. In the anterior subfascial transposition group, 2 patients (20%) showed total relief, 7 patients (70%) improvement and 1 patient (10%) displayed no changes. Statistically there was no significant difference of the clinical results between the two surgical techniques. Therefore we would suggest anterior subfascial transposition of the ulnar nerve as a preferred method for treatment of cubital tunnel syndrome.

• Advances in pediatric surgery
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• 제11권2호
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• pp.131-140
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• 2005

The purpose of this study is to review the operative management and outcome of operation for Crohn's disease. The medical records of 17 patients who underwent operations for Crohn's disease at Seoul National University Children's Hospital from January of 1988 to June of 2005 were reviewed. The male-to -female ratio was 1.8: 1. The median age at the onset of symptoms and the time of diagnosis was 9 years 6 months and 11 years 6 months respectively. The median time interval from diagnosis to operation was 2 years and 1 month (0 month~8 years). The ileocolic or ileocecal region was the most common site of involvement. The indications for operation were intractable symptoms (8 cases) and obstruction or stricture (7 cases). The median postoperative hospitalized days were 14.4 days (8~35 days). Five patients (29 %) experienced postoperative complications. Symptom free state or symptom relief was observed in 11 cases after surgery and 6 cases had intermittent episodes of remissions and recurrences. In pediatric Crohn's disease patients who present with intractable symptoms despite medical treatment or develop surgical complications, symptom free state or symptom relief can be achieved by minimal resection of the diseased segment.

• 한국지반환경공학회 논문집
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• 제10권1호
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• pp.15-23
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• 2009

본 연구의 목적은 사용종료 비위생매립지의 안정화 정도를 평가하고 안정화되지 않은 사용종료 매립지의 재정비 방안을 도출하는데 있다. 안정화 정도는 기존 사용종료 비위생매립지 21개소의 매립폐기물 시료를 채취하여 그 성상을 분석하여 평가하였다. 물리적 성상으로는 토사, 유기물, 가연성 및 불연성으로 분석하였다. 그 결과 매립폐기물 시료를 채취한 9개소의 비위생매립지는 사용종료 후 10년 이상 경과되었음에도 완전한 안정화가 이루어지지 않았으며, 사용종료 비위생매립지의 재정비가 시급함을 알 수 있었다. 비위생매립지의 물리적 성상중 토사 함량이 높았으며 가장 높은 함량은 89.96%이었다. 이와는 달리 위생매립지의 경우는 9.89~11.12%로 토사함량이 낮았다. 따라서 선별이적처리에 의해 회수된 토사는 재정비를 해야하는 비위생매립지의 복토재나 건설재료로의 재활용할 수 있을 것으로 평가되었다.