• 제목/요약/키워드: Significant Events

검색결과 1,453건 처리시간 0.028초

시간 속성을 갖는 이벤트의 의미있는 희소 관계에 기반한 연관 규칙 탐사 (Finding Association Rules based on the Significant Rare Relation of Events with Time Attribute)

  • 한대영;김대인;김재인;송명진;황부현
    • 정보처리학회논문지D
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    • 제16D권5호
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    • pp.691-700
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    • 2009
  • 이벤트는 환자의 증상과 같이 시간 속성을 갖는 하나의 흐름을 의미하며 인터벌 이벤트는 시작과 종료 시점에 대한 시간 간격을 갖는다. 그리고 시간 데이터마이닝에 대한 많은 연구가 있었지만 환자 이력, 구매자 이력, 로그 이력과 같은 인터벌 이벤트에 대한 지식 탐사 방법에 대한 연구는 미흡하다. 이 논문에서는 이벤트들의 인과 관계에 대한 연관 규칙을 탐사하고 이 규칙에 기반하여 결과 이벤트 발생을 예측하는 시간 데이터마이닝 방법을 제안한다. 제안 방법은 이벤트 시간 속성을 사용하여 인터벌 이벤트로 요약하고 이벤트들의 인과 관계를 탐사하여 이벤트 발생을 예측한다. 성능평가를 통하여 제안 방법은 다양한 지지도를 적용하여 발생 빈도에 상관없이 이벤트 발생에 높은 영향을 주는 의미있는 희소 관계를 발견함으로써 기존의 데이터마이닝 기법에 비하여 보다 우수한 정보를 탐사할 수 있다.

Low-Level Laser Therapy including Laser Acupuncture for Non-Specific Chronic Low Back Pain: Systematic Review and Meta-Analysis

  • Yeum, Hyewon;Hong, Yejin;Nam, Dongwoo
    • Journal of Acupuncture Research
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    • 제38권1호
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    • pp.8-19
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    • 2021
  • Low-level laser therapy including laser acupuncture (LLLT/LA) has been widely used for non-specific chronic low back pain (NCLBP). However, there is no critically appraised evidence of its potential benefits. This study aimed to evaluate the effectiveness of LLLT/LA for NCLBP. There were 12 databases (MEDLINE, CENTRAL, EMBASE, KoreaMed, KMBASE, KISS, NDSL, KISTI, OASIS, CNKI, CiNII, J-stage) searched for randomized controlled trials using LLLT/LA for NCLBP up until June 2019. The primary outcome was pain intensity and functional status/disability due to NCLBP. A random-effects meta-analysis was conducted on 20 studies involving 1,323 participants. LLLT/LA showed a significant positive effect on pain relief scores compared with sham treatments (SMD -0.51, 95% CI: -0.88 to -0.13; χ2 = 31.12, I2 = 74%). Alone, the therapy showed a significant positive effect on function/disability scores (30 participants, MD -11.90, 95% CI: -17.37 to -6.43). As an add-on treatment, it showed a significant positive effect on pain relief (80 participants, MD -5.10, 95% CI: -9.31 to -0.88; χ2 = 28.99, I2 = 97%) and improved function/disability scores (120 participants, MD 5.44, 95% CI: 2.19 to 8.68; χ2 = 4.07, I2 = 75%). Among 20 studies, 9 studies reported no adverse events and 1 study reported mild adverse events. LLLT/LA may be an alternative or add-on treatment for NCLBP.

뮤지컬 관람 경험의 실재감과 전송이 감정반응 및 만족도에 미치는 영향 (A Study on the Influence of the Presence and Transportation on Emotional Response and Satisfaction from Seeing a Musical)

  • 김지수;전종우
    • 한국콘텐츠학회논문지
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    • 제22권6호
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    • pp.223-237
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    • 2022
  • 본 연구는 뮤지컬 관람 경험의 실재감과 전송이 만족도에 미치는 영향을 파악하고 감정반응의 매개효과를 검증하고자 하였다. 본 연구는 뮤지컬 관람객을 대상으로 설문조사를 실시하였고, 339명의 응답을 분석하였다. 자료 분석은 SPSS 23.0, AMOS 23.0 프로그램을 사용하였다. 본 연구의 결과는 다음과 같다. 첫째, 뮤지컬 관람 경험의 실재감과 전송은 감정반응에 유의한 영향을 미치는 것으로 나타났다. 둘째, 뮤지컬 관람 경험의 실재감과 전송은 만족도에 유의한 영향을 미치는 것으로 나타났다. 셋째, 뮤지컬에 대한 감정반응은 만족도에 유의한 영향을 미치는 것으로 나타났다. 넷째, 뮤지컬 관람 경험의 실재감 및 전송과 만족도의 관계에서 감정반응은 매개효과가 있음을 검증하였다. 본 연구는 공연분야에서 온라인 공연의 비중이 높아지며 관람 경험의 패러다임이 변화하고 있는 현 시점에서 향후 현장 공연 제작은 물론 온라인 공연을 수익모델로 고민하는 공연기획자 및 관련 산업 종사자들에게 의미 있는 기초자료를 제공하였다는 점에서 의의가 있다.

지정학적 위기와 해운기업 주가 변동성의 인과관계에 관한 연구 (A Study on the Causality between Geopolitical Risk and Stock Price Volatility of Shipping Companies)

  • 김치열
    • 한국항해항만학회지
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    • 제48권3호
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    • pp.206-213
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    • 2024
  • 본 연구는 지정학적 위기와 해운기업 주식가격 변동성의 인과관계를 분석하였다. 해운산업은 국가간의 교역에 의해서 수요가 파생되는 국제성을 가지기 때문에, 여러 가지 종류의 불확실성과 리스크에 직면하고 있다. 이에 본 연구에서는 최근 러시아-우크라이나 전쟁 및 이스라엘-하마스 전쟁 등으로 부상하고 있는 지정학적 위기가 해운산업에 미치는 영향을 분석하고자 한다. 특히, 지정학적 불확실성이 해운기업의 주식가격 변동성에 미치는 영향에 대해서 분석함으로서 이에 대한 시사점을 제공하고자 한다. 2000~2023년 기간 동안 한국거래소에 상장된 해운기업 5개사의 주식가격 변동성과 지정학적 위기 지수의 관계를 벡터자기회귀모형 기반의 인과성을 검정한 결과, 다음과 같은 결론이 도출되었다. 첫째, 지정학적 위기가 고조될수록 해운기업 주식가격의 변동성은 확대되었다. 둘째, 외교적 마찰로 인한 지정학적 위기보다는 실제 발생하는 이벤트에 의한 지정학적 위기의 영향이 통계적으로 유의하였다. 마지막으로, 지정학적 위기로 인한 주식가격 변동성의 확대는 주로 벌크부문에 나타났다.

성별에 따른 대학생의 일상적 스트레스, 사회적 지지, 속박감 및 정신건강의 관계 (Relationships among Daily Hassles, Social Support, Entrapment and Mental Health Status by Gender in University Students)

  • 천숙희
    • 여성건강간호학회지
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    • 제18권3호
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    • pp.223-235
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    • 2012
  • Purpose: This study was designed to examine the relationships among daily hassles, social support, entrapment and mental health status in relation to gender in university students. Methods: Data were collected via a self- administered questionnaire from 118 male and 98 female college students in Kangwon province. Data were analyzed using SPSS/WIN 18.0 program for descriptive statistics, t-test, ANOVA, Pearson correlation, and stepwise multiple regression. Results: There were significant differences in daily hassles, entrapment and depression between male and female group. Also, there were significant relationship between entrapment and mental health status (i.e. depression, anxiety, hostility, somatization) in both groups. In male students, internal entrapment was the significant predictor of depression and anxiety, and external entrapment was the significant predictor of hostility and somatization whereas, in female students external entrapment was the significant predictor of depression, and internal entrapment was the significant predictor of anxiety, hostility and somatization. Conclusion: These results suggest that entrapment is an important factor for psychological maladaptation due to stressful life events. Therefore, strategies that reduce perception of entrapment according to gender should be developed for psychological adaptation.

Solar Wind Dynamic Pressure during Magnetic Storms and its implications on the Dayside Ring Current Particle Loss

  • Kim, Kyungchan;Lee, Dae-Young
    • 한국우주과학회:학술대회논문집(한국우주과학회보)
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    • 한국우주과학회 2004년도 한국우주과학회보 제13권1호
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    • pp.39-39
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    • 2004
  • It has been known that ring current particles can be lost through dayside MP(magnetopause). However, details of the loss mechanism of this process has not received much attention. In this study, we show that the solar wind dynamic pressure P$\sub$D/ can play a significant role in the dayside loss. In order to show that, we have first conducted superposed epoch analysis using 95 geomagnetic storm events selected from the period 1997 to 2002. (omitted)

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Miller Fisher 증후군 1례에 대한 임상적 고찰 (A Case of Miller Fisher Syndrome)

  • 정은정;최동준;고창남;조기호;김영석;배형섭;이경섭
    • 대한한의학회지
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    • 제20권4호
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    • pp.98-105
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    • 2000
  • Miller Fisher syndrome is characterized by acute external ophthalmoplegia, ataxia and areflexia in the abscence of significant motor or sensory deficit in the limbs and usually results in a complete recovery. Most cases have anteceding events like upper respiratory infection or other viral infections. Its accurate anatomic lesion sites and pathogenesis is still unknown. Recently we experienced a 47 year-old man who had a sudden onset of complete total ophthalmoplegia, ataxia, diplopia and whose condition was improved through Oriental medical treatment.

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미국이민 한국인의 스트레스 반응 양상과 생활사건과의 상관 연구 (Correlation Study between Stress Responses and Life Events as a Stressor)

  • 이소우
    • 대한간호학회지
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    • 제23권2호
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    • pp.299-315
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    • 1993
  • Koreans are one of the fastest growing immigrant groups in America. Stress responses and stressors among this large cultural minority has been rarely been studied by nursing researchers. Adjusting to life in foreign country produces a great deal of stress. Differences in culture, language, expectations and social behavior can lead to misunderstandings between health care providers and clients. These misunderstandings are not well accounted for in health assessment. This study investigated the relationship between life events or / and daily activities as a stressor and the symptoms of stress among a sample of Korean immigrants in America. The symptoms of stress scale (SOS) was used to identify stress responses and open-ended questions were used to identify life events and daily activities considered by the respondents to be stressful. A simple random sample of 283 subjects was selected from the Directory of the Korean Society of Chicago, New York, Los Angeles, Philadelphia and Seattle. Demographically, the subjects ranged in age from 20 to 69 years, and the percentage of women and men was approximately 50% each. Almost ninety percent of the subjects were highly educated, 17% owners of business, 19% white collar professionals, 14% employed in sales or as skilled /unskilled labor, 27% as housewives and students and 3% had no occupation. The total group SOS mean was 0.8042 ; the SOS men for man was 0.7371, and for women was 0.8713. The stress response of this subject group was high, -the stress response of women higher than that for men. In an earlier study(June, 1992) with another sample, the total mean SOS score was similar to this one. The main stressful life events or / and daily activities were, in order, economic problems (N=97), interpersonal problems (N=68), children care problems (N=258), health problems (N=49), communication problems (N=42), family problems (N=38), worry about future career (N=36), and religious problems (N=25). There was a significant difference in the SOS means between the group that expressed life events or / and daily activities to be stressful and the group that did not. Interpersonal relationships and economic and family problems were stressors for those who complained about peripheral manifestations. cardiopulmonary symptoms, central-neurological symptoms, gastrointestinal symptoms, muscle ten-sion, habitual patterns, depression, anxiety, emotional irritability and cognitive disorganization. In summary, interpersonal relationships and economic and family problems influenced stress response manifestations. Income, the number of people in the family, the year of immigration. the level of education, and marital status were related to physiological and psychosocial stress responses.

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입원이 불안감(Stress)으로서 환자에게 미치는 영향에 관한 일 연구 (A Study of Stress Factors Experienced by the Hospitalized Patients)

  • 최옥신
    • 대한간호학회지
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    • 제5권1호
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    • pp.93-111
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    • 1975
  • As the hospitalized patients will be facing new stress situation due to change of his environment from home to hospital it will be very important to understand the psychological stress experienced by hospital patients not only for helping patients in the process of recovery from illness but also fulfil1ing the objective of comprehensive nursing care by understanding the needs of the patients. There is no doubt that it would be very helpful for treatment of patients as well as for improvement of nursing care if we know more about psychological needs of patients and give them adequate support to meet these needs. The study to find out the causes and degree of stress events experienced by hospitalized patients, with the objective of instituting improvement of nursing care program based on the needs of patients, was conducted during the month of September 1974 with 60 patients randomly selected from those admitted to medical and surgical wards at Yonsei Medical Center in that period The questionnaire form included 36 questions which are considered to be stress events for hospital patients, and was devide into five areas namely, such events related to 1) disease itself, 2) hospital environment, 3) nursing care and treatment, 4) communication and human relations, and 5) family and economic problems. The results of the study were as follows: 1. It was confirmed that hospitalization considered to be a stress producing factor and most patients perceived the admission to hospital as a stress factor. 2. According to the rating scale, it was found that degree of perceived stress shows a variation according to the source of stress producing event. 3. No significant differences in the mean values were observed statistically with the perceived stress levels according to demographic and other variables of patients related to hospitalization. 4. Among the questions related to disease itself, "Admission for surgery" was perceived most frequently as a stress event (97.14%) by patients. 5. With regard to the questions related to hospital environment, "death of the patient room-mate" was the most serious stress event perceived by patients (90%) and "living with hospital regulations"was considered to be less serious stress event (23.33%). 6. As for the questions related to nursing care and treatment, "limitation of freedom" was perceived as a stress factor most frequently (70.91%) by the patients and "worry for wrong treatment" turned out to be less frequent stress event (50.0%). 7. As for the questions related to communication and human relations, "difficulty to meet doctors when wanted"appeared to be the most frequent stress event by the respondents (75.86%) , followed by "no explanation about treatment or examination"(75.0%) and "no explanation about nursing care procedures"(71.66%). 8. With regard 111 tile questions related to family and economic problems, "inadequate finances for family living due to hospitalization"and "high cost of hospitalization" were the most frequent cause of stress mentioned by the patients. (80.0%). 9. As a result of application of the stepwise regression analysis, it was found that about 89% was explained by those events associated with disease itself, hospital environment and family and economic problems. By adding those events related to "nursing care and treatment" and "communication and human relation", 100% of stress associated with hospitalization was explained.

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비만 환자에서 한방 비만 변증에 따른 방풍통성산과 방기황기탕의 치료효과 및 부작용 비교 : 무작위 배정, 이중 맹검, 위약-대조군 임상시험 (Efficacy and Adverse Events of Bangpungtongseong-san(Bofutsusho-san) and Bangkihwangki-tang(Boiogiot-tang) by Oriental Obesity Pattern Identification on Obese Subjects : Randomized, Double Blind, Placebo-controlled Trial)

  • 박정현;이명종;김호준;홍선우;이동기;유재욱;최선미;문진석;임지연;이정복
    • 한방재활의학과학회지
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    • 제21권2호
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    • pp.265-278
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    • 2011
  • Objectives : This trial were conducted to evaluate the efficacy and adverse events of Bofutsusho-san(BTS) and Boiogiot-tang(BOT) by oriental obesity pattern identification on obese subjects, as compared to placebo. Methods : 166 subjects(body mass index ${\geq}25kg/m^2$) were recruited and randomized to receive BT(n=55), FH(n=55) or placebo(n=56) for 8 weeks. Anthropometric factors, serum lipid, glucose, blood pressure(BP), pulse rate, resting metabolic rate and oriental obesity pattern identification questionnaire were measured at baseline and 8 weeks. Adverse events and safety outcome variables were also checked during trials. Results : The frequency of top-scored oriental obesity pattern was ordered by indigestion(食積) > stagnation of the liver qi(肝鬱) > yang deficiency(陽虛) > spleen deficiency(脾虛) > phlegm(痰飮) > blood stasis(瘀血) in subjects. BTS group significantly decreased body weight, body mass index(BMI), waist circumference(WC), body fat mass, total cholesterol and HDL-cholesterol in stagnation of the liver qi(肝鬱) and WC in indigestion(食積). BOT group showed significant decrease of body weight, BMI, WC, and body fat mass in indigestion(食積) not in deficiency(虛症). Adverse events were reported most frequently in yang deficiency(陽虛) by BT group and stagnation of the liver qi(肝鬱) by BOT group. Conclusions : Bofu-tsusho-san was effective in treating obesity with stagnation of the liver qi(肝鬱). Obesity pattern identification could be a useful diagnostic tool predicting treatment effects and adverse events.