• 제목/요약/키워드: Moment method

검색결과 3,060건 처리시간 0.03초

고속철도 서비스 확대를 위한 수도권 고속철도 확충 방안 고찰 (Method for increasing rail operation capacity of capital high speed rail with expanding the high speed railway service)

  • 노병국;김용배;신동원
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2009년도 춘계학술대회 논문집
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    • pp.1254-1268
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    • 2009
  • 정부고속철도 건설계획이 1998년 IMF로 인하여 서울 시흥구간 및 대구$\sim$부산간은 기존 경부선을 이용하여 우선 개통하고, 2단계로 대구$\sim$부산구간을 신설 개통하는 것으로 변경됨에 따라 서울도심 입출구부인 서울$\sim$시흥구간은 고속열차, 일반열차 및 화물열차의 운용운행으로 일반열차 운행횟수 축소로 인한 서비스 저하, 고속철도 서비스 추가 어려움 등으로 동 구간의 신설확장에 대한 지속적인 필요성이 제기 되어 왔으며, 호남고속철도 또한 수서 출발을 위한 강남권 고속철도 건설계획이 경제성 등의 이유로 오송에서 분기하는 것으로 변경됨에 따라 강남권 및 경기남부지역 주민들의 고속철도 서비스혜택의 기회가 박탈되는 결과률 초래하였다. 경부고속철도 개통이후 국가교통체계가 고속철도 중심으로 변화하고 있고, 경부고속철도 2단계 개통, 경전선 및 전라선 복선전칠 완공, 2014년 호남고속철도 개통시 고속열차 추가수요가 발생하나, 서울$\sim$시흥구간의 선로용량 부족으로 고속열차 광명역 출발, 일반열차 운행횟수 축소 등의 파행적인 열차운영이 불가피하므로 이와 같은 문제점을 근본적으로 해소하기 위한 강북구간 (광명$\sim$화전) 의 선로확장과 더불어 강남구간 (수서$\sim$평택)의 고속철도 신설을 추진하여야 한다. 이에 따라 본 고찰에서는 수도권 고속철도 선로확충을 위한 효율적인 열차운영방안, 시설계획 등 고려 하여야 할 사항에 대하여 검토하고자 한다.

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졸-겔 방법을 이용하여 제작된 (Mn, Cr)xCo1-xFe2O4 박막의 구조적, 자기적 특성 (Structural and Magnetic Properties of (Mn, Cr)xCo1-xFe2O4 Thin Films Prepared by Sol-gel Method)

  • 김광주;김희경;박영란;박재윤
    • 한국자기학회지
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    • 제16권1호
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    • pp.23-27
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    • 2006
  • 역스피넬 산화물 $CoFe_2O_4$에서 Co를 Mn 또는 Cr클 치환하여 얻어지는 $Mn_xCo_{1-x}Fe_2O_4$$Cr_xCo_{1-x}Fe_2P_4$ 박막시료 들을 졸-겔 방법을 이용하여 제작하고 그 구조적, 자기적 특성들을 비교분석 하였다. X-ray diffraction 측정 결과, Mn 치환의 경우는 치환량의 증가에 따라 격자상수가 증가하였지만 Cr치환의 경우는 격자상수가 거의 변화하지 않음이 관측되었다. 이와 같은 결과는 Mn 치환의 경우 팔면체 자리의 Co이온과 같은 원자가 +2를 가지게 되는 것으로 설명 가능하며 Cr치환의 경우는 +3을 가지게 되어 같은 양의 $Fe^{3+}$이온들의 $Fe^{2+}$로의 환원이 발생하는 것으로 설명되어질 수 있다. $Cr_Co_{1-x}Fe_2O_4$박막들에 대한 Mossbauer 스펙트럼 측정 결과 사면체 자리에 $Fe^{2+}$이온의 존재가 관측되었으며 이는 $Cr^{3+}$이온의 팔면체 자리 치환에 의하여 야기되는 사면체 자리의 $Fe^{3+}{\rightarrow}Fe^{2+}$ 환원에 의한 것으로 해석된다. 반면에 $Mn_xCo_{1-x}Fe_2O_4$ 박막들에 대한 Mossbauer스펙트럼 측정 결과, $Fe^{2+}$ 이온의 존재는 관측되지 않았으며 Mn 치환량이 큰 경우 (>0.47)팔면체 자리의 $Fe^{3+}$이온들의 사면체 자리로의 이동이 관측되었다. 박막들에 대한 진동시료자화(vibrating sample magnetometry)측정 결과, Mn, Cr 치환의 경우 모두 $CoFe_2O_4$와 비교하여 포화자화량이 증가함이 나타났으며 치환에 관여한 이온들 간의 스핀 자기 능률 크기의 비교를 통하여 그 정성적인 설명이 가능하다.

57Fe가 치환된 TiO2의 결정학적 및 뫼스바우어 분광학적 연구 (Crystal Structure and Mossbauer Studies of 57Fe Doped TiO2)

  • 이희민;심인보;김철성
    • 한국자기학회지
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    • 제13권6호
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    • pp.237-242
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    • 2003
  • $Ti_{1-x}$$^{57}$ F $e_{x}$ $O_2$(0.0$\leq$x$\leq$0.7) 분말을 졸-겔법으로 제조하여 $^{57}$ Fe의 치환량에 따른 결정학적 및 자기적 성질을 연구하였다. X-선 회절 및 중성자 회절실험을 통하며 모든 시료가 anatase 구조를 갖는 순수한 단일상임을 확인할 수 있었다. 진동시료자화율측정기 (VSM)를 통한 자기모멘트의 측정 결과, $^{57}$ Fe의 치환량이 증가함에 따라 상온에서의 Fe 원자 당 자기모멘트 값이 급격히 감소하는 매우 독특한 현상을 관측할 수 있었다. x$\leq$0.01 치환량을 갖는 시료들은 분명한 강자성 거동을 보였으며, x$\geq$0.03 치환량을 갖는 시료들에 대해서는 상자성 형태의 자화곡선이 관측되었다. 이에 대하여 14 K 부터 400 K까지 Mossbauer 분광실험을 한 결과 x$\leq$0.01 치환량을 갖는 시료의 경우 Ti $O_2$내의 $^{57}$ Fe가 상온에서 강자성(sextet)과 상자성(doublet) 형태로 동시에 존재함을 확인할 수 있었고, x$\geq$0.03 치환량을 갖는 시료들에 대해선 오직 상자성 상만을 나타내는 날카로운 doublet만이 존재함을 확인할 수 있었다. 이는 Mossbauer와 VSM 두 결과가 잘 일치함을 보여주고 있고, 상온에서 강자성을 나타내기 위한 $^{57}$ Fe의 치환한계가 x=0.01과 0.03 사이에 있음을 말해 주고 있다. 또한, 상온에서 강자성 성질을 갖는 x$\leq$0.01 시료들로부터 얻은 자기 모멘트 값이 매우 작은 것은 치환된 $^{57}$ Fe의 강자성 상과 상자성 상이 동시에 기여하기 때문에 얻어진 결과로 해석될 수 있다.다.

북한 초기 고전 각색 가극과 선별의 음악 정치 - 혁명가극 이전 민족 가극을 중심으로 (North Korean folk Operas and Musical Politics of Selection - Focused on National Operas Prior to Revolutionary Operas)

  • 정명문
    • 공연문화연구
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    • 제39호
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    • pp.69-96
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    • 2019
  • 북한은 혁명가극 이전의 가극을 선택적으로 보존했다. 이중 초기 고전 각색 가극은 1950년대 이후 남북한의 가극 장르 변화를 추적하는데 중요 단서를 제공한다. <금강산 팔선녀>, <춘향전>, <콩쥐팥쥐>, <온달>은 비현실적인 상황을 조정하고, 계급 문제를 제기하는 방향으로 각색되었다. 초기 고전 각색 가극에서 부각시킨 인민은 신분 격차와 상관없이 부지런히 일하고 애국심을 갖춘 이였다. 또한 부당한 착취에 대해 조직적인 투쟁을 함께하는 공동 구성원이기도 했다. 이는 노동과 개인 생활의 통일, 낡은 것의 파멸, 그 파멸을 촉진하는 투쟁을 지지하는 창작 독려의 성과였다. 선별 보존된 작품들은 극장에서 집중시킨 감각을 일상에서 유지시키는 일종의 모범 사례이기도 했다. 고전 각색 가극은 신분제도 반대, 국토 찬양, 긍정적인 근로 방향과 같은 국가 강령을 자연스레 관객에게 각인시킬 수 있었다. 하나의 작품이 무대화되면 소재, 주제, 음악, 운영방안 측면에서 평가를 거쳐 생존 여부가 판단되었다. 그 표징은 '김일성'의 관람 여부 및 방향성 제시였다. 김일성 일가의 수정 지시 사항을 받아들여 집단이 재창조하고, 해외 공연을 통해 선전하는 과정은 혁명가극의 극작 및 홍보 방식과 맞닿는다. 이렇게 선별된 가극은 인민, 여성, 문학 차원에서 스토리텔링화 되면서 모델이 되었다. 이렇게 북한 초기 고전 각색 가극은 공적인 교감과 음악정치 구축의 상관성을 보여주는 사례이다.

스마트폰 다종 데이터를 활용한 딥러닝 기반의 사용자 동행 상태 인식 (A Deep Learning Based Approach to Recognizing Accompanying Status of Smartphone Users Using Multimodal Data)

  • 김길호;최상우;채문정;박희웅;이재홍;박종헌
    • 지능정보연구
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    • 제25권1호
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    • pp.163-177
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    • 2019
  • 스마트폰이 널리 보급되고 현대인들의 생활 속에 깊이 자리 잡으면서, 스마트폰에서 수집된 다종 데이터를 바탕으로 사용자 개인의 행동을 인식하고자 하는 연구가 활발히 진행되고 있다. 그러나 타인과의 상호작용 행동 인식에 대한 연구는 아직까지 상대적으로 미진하였다. 기존 상호작용 행동 인식 연구에서는 오디오, 블루투스, 와이파이 등의 데이터를 사용하였으나, 이들은 사용자 사생활 침해 가능성이 높으며 단시간 내에 충분한 양의 데이터를 수집하기 어렵다는 한계가 있다. 반면 가속도, 자기장, 자이로스코프 등의 물리 센서의 경우 사생활 침해 가능성이 낮으며 단시간 내에 충분한 양의 데이터를 수집할 수 있다. 본 연구에서는 이러한 점에 주목하여, 스마트폰 상의 다종 물리 센서 데이터만을 활용, 딥러닝 모델에 기반을 둔 사용자의 동행 상태 인식 방법론을 제안한다. 사용자의 동행 여부 및 대화 여부를 분류하는 동행 상태 분류 모델은 컨볼루션 신경망과 장단기 기억 순환 신경망이 혼합된 구조를 지닌다. 먼저 스마트폰의 다종 물리 센서에서 수집한 데이터에 존재하는 타임 스태프의 차이를 상쇄하고, 정규화를 수행하여 시간에 따른 시퀀스 데이터 형태로 변환함으로써 동행 상태분류 모델의 입력 데이터를 생성한다. 이는 컨볼루션 신경망에 입력되며, 데이터의 시간적 국부 의존성이 반영된 요인 지도를 출력한다. 장단기 기억 순환 신경망은 요인 지도를 입력받아 시간에 따른 순차적 연관 관계를 학습하며, 동행 상태 분류를 위한 요인을 추출하고 소프트맥스 분류기에서 이에 기반한 최종적인 분류를 수행한다. 자체 제작한 스마트폰 애플리케이션을 배포하여 실험 데이터를 수집하였으며, 이를 활용하여 제안한 방법론을 평가하였다. 최적의 파라미터를 설정하여 동행 상태 분류 모델을 학습하고 평가한 결과, 동행 여부와 대화 여부를 각각 98.74%, 98.83%의 높은 정확도로 분류하였다.

Xylazine이 histamine 유리에 미치는 영향 (Effect of xylazine hydrochloride on histamine release)

  • 김영환;박준형
    • 한국동물위생학회지
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    • 제25권1호
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    • pp.53-73
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    • 2002
  • It has been reported that degranulation of mast cells in rats, rabbits and dog was observed after dosing xylazine hydrochloride(Xh) which has been widely used as sedative, analgesic and muscular relaxant. Therefore, this experiment was conducted to examine the relations between Xh and histamine release and to identify the action of ${\alpha}$-adrenoceptors which exists on the suface of mast cells. 1. The content of histamine within serum was measured with HPLC by performing the O-phthalaldehyde(OPA) fluorescent derivation. The pretreatment method had a little modification from the conventional method. The pretreament was carried out in the following method. 0.2$m\ell$ of serum and 1$m\ell$ of butanol were added to mixed together and then the liquid was centrifugally separated at 4$^{\circ}C$ and 2,000 rpm for 3 minutes. 0.4$m\ell$ of 0.1N HCl and 1.6$m\ell$ of heptane were added to 0.8$m\ell$ of supernatant taken from the liquid, and they were mixed together. This mixture was also centrifugally separated at 4$^{\circ}C$ and 2,000 rpm for 5 minutes. The supernatant was thrown away and the OPA fluorescent derivation was carried out with 0.2$m\ell$ of the lower liquid then, 5 minutes after mixing 400${\mu}\ell$ of 0.1N HCl, 120${\mu}\ell$ of 1N NaOH and 40${\mu}\ell$ of 0.1% OPA in the 0.2$m\ell$ of the lower liquid,120${\mu}\ell$ of 3.57N H$_3$PO$_4$ was added to the mixed liquid, and the liquid, was mixed again and syringe-filtered. Then, the measurement was done with HPLC in the 30 : 70(ν/ν) ratio of 0.004M KH$_2$PO$_4$: CH$_3$CN, flow rate of 1.0$m\ell$/min., and a wavelength of λex= 350nm and λem=444nm at the column temperature of 27$^{\circ}C$, using the fluorescence detector. 2. The content of histamine in each laboratory animal appeared to be higher in such an order as rabbit, rat, guinea pig, dog, Korean indigenous goat, swine, Korean indigenous cattle, Holstein, and mouse, of which the individual mean values${\pm}$standard deviation were 2.0668 ${\pm}$ 0.6049. 0.4999 ${\pm}$ 0.2278, 0.4241 ${\pm}$ 0.1974, 0.1054 ${\pm}$ 0.0556, 0.1028 ${\pm}$ 0.0276, 0.0972 ${\pm}$ 0.0513, 0.0872 ${\pm}$ 0.0373, 0.0717 ${\pm}$ 0.0379, and 0.0706 ${\pm}$ 0.0366, respectively. 3. The content of histamine was measured at the moments of 15-, 30-, 60-, 120-minutes after inoamuscular injection of 20mg/100kg Xh into two to 4 years old Holstein weighing 600∼700kg. The result showed that there was a significant increase at the times of 30- and 90-minutes after injection(p<0.05). 4. Intramuscular injection of 3mg/10kg Xh was given to crossbred pug dogs weighing 2.5∼4.3kg. The content of histamine was measured at the times of 30-, 60-, 90- and 120-minutes after injection. The result revealed that there was a significant increase at the times of 60-and 90-minutes after injection(p<0.05). 5. Intramuscular injection of 10mg/$m\ell$∼25mg/$m\ell$ Xh in concentration of 0.1$m\ell$ was applied to Korean indigenous goat over 5 months old. Then, the content of histamine was measured at the times of 15-, 30-, 60- and 90-minutes after injection. A significant increase was shown at the times of 30- and 60-minutes after injection(p<0.05). 6. The content of histamine was measured at the moments of 30- and 60-minutes after intramuscular injection of 0.1-0.2$m\ell$ Xh (20mg/$m\ell$) into male rabbits weighting 2.5-4kg. A significant increase was found at the moment of 60 minutes after injection(p<0.001). 7. After administering Xh to the mast cell taken from the abdominal cavity of mouse, the content of histamine was measured. The result showed that the higher the concentration, the more significantly the content of histamine was increased(p<0.05). 8. Compound 48/80 was administered in concentration of 5$\mu\textrm{g}$/$m\ell$ and 10$\mu\textrm{g}$/$m\ell$ to the mast cell picked from the abdominal cavity of mouse. The result showed that there was a significant increase in the content of histamine in case of the concentration of 10$\mu\textrm{g}$/$m\ell$(p<0.05). It was found to be about 10,000 to 500,000 times stronger than the Xh. 9. After premedication of 1mg/kg of yohimbine hydrochloride as ${\alpha}$$_2$-adrenergic antagonist to rabbits, the Xh was administered to them. The result was that the value of histamine within serum was decreased significantly(p<0.001). 10. After premeditation of 1mg/kg of prazosin hydrochloride as ${\alpha}$$_1$-adrenergic antagonist to rabbits, the Xh was administered to them. It was found that the value of histamine within serum was decreased significantly(p<0.005). 11, Prazosin hydrochloride and yohimbine hydrochloride as ${\alpha}$$_1$-adrenergic antagonist, respectively, and ${\alpha}$$_2$-adrenergic antagonist were administerd. In this case, the value of histamine within serum was decreased significantly(p<0.0001). As the results, when the Xh is administered to various kinds of animals, the amount of histamine release within serum is increased. In view of the results so far achieved, it is concluded that Xh acted on both a$_1$-adrenoreceptor and ${\alpha}$$_2$-adrenoreceptor induces the degranulation of mast cell.

Relationship between Brand Personality and the Personality of Consumers, and its Application to Corporate Branding Strategy

  • Kim, Young-Ei;Lee, Jung-Wan;Lee, Yong-Ki
    • 마케팅과학연구
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    • 제18권3호
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    • pp.27-57
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    • 2008
  • Many consumers enjoy the challenge of purchasing a brand that matches well with their own values and personalities (for example, Ko et al., 2008; Ko et al., 2006). Therefore, the personalities of consumers can impact on the final selection of a brand and its brand personality in two ways: first, the consumers may incline to purchase a brand or a product that reflects their own personalities; second, consumers tend to choose a company that has similar brand personalities to those brands that are being promoted. Therefore, the objectives of this study are following: 1. Is there any empirical relationship between a consumer's personality and the personality of a brand that he or she chooses? 2. Can a corporate brand be differentiated by the brand personality? In short, consumers are more likely to hold favorable attitudes towards those brands that match their own personality and will most probably purchase those brands matching well with their personality. For example, Matzler et al. (2006) found that extraversion and openness were positively related to hedonic product value; and that the personality traits directly (openness) and indirectly (extraversion, via hedonic value) influenced brand effects, which in turn droved attitudinal and purchase loyalty. Based on the above discussion, the following hypotheses are proposed: Hypothesis 1: the personality of a consumer is related to the brand personality of a product/corporate that he/she purchases. Kuksov (2007) and Wernerfelt (1990) argued that brands as a symbolic language allowed consumers to communicate their types to each other and postulated that consumers had a certain value of communicating their types to each other. Therefore, how brand meanings are established, and how a firm communicate with consumers about the meanings of the brand are interesting topics for research (for example, Escalas and Bettman, 2005; McCracken, 1989; Moon, 2007). Hence, the following hypothesis is proposed: Hypothesis 2: A corporate brand identity is differentiated by the brand personality. And there are significant differences among companies. A questionnaire was developed for collecting empirical measures of the Big-Five personality traits and brand personality variables. A survey was conducted to the online access panel members through the Internet during December 2007 in Korea. In total, 500 respondents completed the questionnaire, and considered as useable. Personality constructs were measured using the Five-factor Inventory (NEO-FFI) scale and a total of 30 items were actually utilized. Brand personality was measured using the five-dimension scale developed by Aaker (1997). A total of 17 items were actually utilized. The seven-point Likert-type scale was the format of responses, for example, from 1 indicating strongly disagreed to 7 for strongly agreed. The Analysis of Moment Structures (AMOS) was used for an empirical testing of the model, and the Maximum Likelihood Estimation (MLE) was applied to estimate numerical values for the components in the model. To diagnose the presence of distribution problems in the data and to gauge their effects on the parameter estimates, bootstapping method was used. The results of the hypothesis-1 test empirically show that there exit certain causality relationship between a consumer's personality and the brand personality of the consumer's choice. Thus, the consumer's personality has an impact on consumer's final selection of a brand that has a brand personality matches well with their own personalities. In other words, the consumers are inclined to purchase a brand that reflects their own personalities and tend to choose a company that has similar brand personalities to those of the brand being promoted. The results of this study further suggest that certain dimensions of the brand personality cause consumers to have preference to certain (corporate) brands. For example, the conscientiousness, neuroticism, and extraversion of the consumer personality have positively related to a selection of "ruggedness" characteristics of the brand personality. Consumers who possess that personality dimension seek for matching with certain brand personality dimensions. Results of the hypothesis-2 test show that the average "ruggedness" attributes of the brand personality differ significantly among Korean automobile manufacturers. However, the result of ANOVA also indicates that there are no significant differences in the mean values among manufacturers for the "sophistication," "excitement," "competence" and "sincerity" attributes of the corporate brand personality. The tight link between what a firm is and its corporate brand means that there is far less room for marketing communications than there is with products and brands. Consequently, successful corporate brand strategies must position the organization within the boundaries of what is acceptable, while at the same time differentiating the organization from its competitors.

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중학교 체질검사 실태에 관한 연구 (A study on physical examination of middle school students)

  • 박성희
    • 한국학교보건학회지
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    • 제14권1호
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    • pp.131-143
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    • 2001
  • The primary aim of this dissertation is to contribute to the improvement of methods in physical examination by providing quality information for the current school system and advice for improving status. Present status, controversial points and possible remedies in physical examination were analyzed on a frequency and percentage basis. An $x^2$-test was used to verify the statistics between the results from the examination and each variable. In case of multiple categories of variables, an $x^2$ cs was adopted. Chronological data as well as both total and sampling physical examination data verified the statistics using an $x^2$-test. This thesis is based both on the data from middle school health care specialists in Gyunggi Province and on the analysis of physical examinations reported from local schools to the municipal education agency from 1997 to 1999. The results of the study are as follows: First, according to the survey, only 29.0% of the total schools had their school doctors examine all the students while most of the educational institutions failed to implement the whole process of physical examination on the list. It also turned out that the more students the schools have, the lower the rate of implementation of physical examination by school doctors(p=0.014). Second, the average time a school doctor spends for checkup turned out to be approximately 1.7 minutes per student This means that the quality of the physical examination is not guaranteed in the process. Third, 47.7% of those surveryed say that a dental examination was performed, each taking 21.24 seconds on average. In addition, it shows that some 31.5% wanted to have a task force team for dental checkups at the local health center. Given the fact that dental caries among students is progressively on the rise, the dental health centers that are now set up in some elementary schools should be expanded to cover the whole educational institution in order to raise awareness of the importance of dental care. Fourth, 48.5% of those surveyed say that a comprehensive physical examination should be adopted to promote the health of high schoolers. Since it takes a lot of public funds to implement a comprehensive method, it is essential to make sure that in-depth studies should be based on the frequency and methods of physical examination. Fifth, regarding such diseases among 3rd year middle school students in 1999, statistics shows that there was a slight difference in the prevalence rate of color blindness, and allergic diseases for male students ; and color blindness, hearing disturbance and allergic disease for female students. For those items, however, it is too little to say that there is a significant difference and accordingly it is assumed to be a problem of the measuring process. Sixth, the result of analysis on the sample physical examination and the total physical examination of the year 1999 shows as follows: For male students in the 3rd year of middle school, a slight difference appeared to those students in 11 items including eye problems and eye disease, otitis media, tonsillar hypertrophy, spinal shape, respiratory urinary allergic disease and other abnormal diseases(p<0.05). Particularly, the prevalence rate between students with and without disease was shown to be two times more in the following: eye problems, otitis media, tonsill hypertrophy, allergic diseases, etc. For female students in the 3rd year, prevalence rate showed little difference in 14 items(p<0.05). For items including eye problem, otitis media, tonsill hypertrophy, allergic disease, etc. it was shown that the rate was two times more between students with and without diseases. Physical examinations under the current school system are not producing any fundamental results for the health of the students. Methods and results are not trustworthy. Accordingly, a drastic overhaul of the current practices is needed in frequency, methods and items on the list in order to promote the health of the students. Cost-benefit studies as well as political considerations to ensure the development of efficient methods for physical examination are urgently needed at this moment.

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한국형 자가평가 불안척도의 개발 (Development of the Korean Form of Zung's Self-Rating Anxiety Scale)

  • 이중훈
    • Journal of Yeungnam Medical Science
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    • 제13권2호
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    • pp.279-294
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    • 1996
  • 불안의 존재나 정도를 양적으로 측정하고 평가하기 위해서 한국형 자가평가 불안척도를 연구 개발하기 위하여 1994년 8월 부터 1996년 9월까지 영남대학교 의과대학 부속병원 정신과 및 국립 부곡 정신병원 정신과에 외래 및 입원한 불안장애 환자를 대상으로 하여 본 연구를 시행하였다. 불안장애 환자 집단은 남자 52명(53.6%), 여자 45명(46.4%)으로 총 97명(32.1%)이며, 이들 진단의 정확도를 위하여 환자의 선정 기준은 DSM-IV에 의해 불안장애 환자로 진단한 사람들을 대상으로 하였다. 비교 집단은 검사 당시 정상적인 사회 활동에 참여하고 있는 피험자로 주로 고등학교 학생과 일반 대학생 그리고 지역 사회 일반 성인 및 그 가족을 중심으로 하여 남자 104명(50.7%), 여자 101명(49.3%)인 총 205명(67.9%)이였다. 이들에게 Zung의 자가평가 불안척도를 한국형으로 번안하여 조사 방법으로 시행하였다. 본 조사에서 수집된 자료는 종합 검토하여 불충분한 자료를 제거하고 SPSS의 프로그램을 통해서 분석하였다. SAS의 문항 분석을 시행하여 각 문항간의 상관관계, 문항 내적 상관도, 검사의 신뢰도 검증 및 요인분석 그리고 불안척도를 사용하여 정상과 이상 집단을 판별 할 수 있는 판별력을 알아 보기위하여 판별분석 등을 시행하였다. 불안척도로 평가된 비교 집단의 평균 총점은 $32.36{\pm}6.35$이였다. 불안척도로 평가된 불안장애 환자 집단의 평균 총점은 $50.53{\pm}7.67$이였다. 비교 집단인 정상 집단은 전체 불안 점수의 분포는 50점 이상인 경우가 1.0%(2명)이었고, 불안장애 집단의 전체 불안 점수의 분포는 50점 이상인 경우가 25.9%(56명)이었다. 본 척도에 대한 검사-재검사의 신뢰도 검증에서 신뢰도 계수는 0.98(p < 0.001), 항목-전체간의 상관계수의 평균치는 0.60(0.16-0.76), 내적 일관성은 0.96(p < 0.001)이며, 모두 통계적으로 의미있는 신뢰도를 보여주었다. 요인분석에서 4개의 요인이 추출되었는데, 이러한 점은 불안이 여러 가지 요소로 구성되어 있을 가능성도 시사한다. 불안척도에서 비교 집단인 정상인 집단에서 항목별로 높게 평가된 상위 문항들은 발한, 초조, 우려, 불면 및 호흡곤란 등이었고, 하위 항목은 졸도감, 혼돈, 이상감각, 현기증 및 진전 등의 항목이였다. 불안장애 집단이 SAS에서 항목별로 높게 평가된 상위 문항들은 우려, 초조, 발한, 호흡곤란 및 불면 등이며, 하위 항목은 졸도감, 이상감각, 악몽, 현기증 및 진전 등으로 본 연구에서 분석한 결과에서 서로 항목별 내용이 비슷한 결과를 보였다. 본 연구에서 한국형 자가평가 불안척도를 사용하여 판별분석을 한 결과 두 집단을 정상인 집단과 불안장애 환자 집단으로 판별하는 전체 정확 판별율(93.7%)이 비교적 양호한 결과를 보였다. 앞으로 한국형 자가평가 불안척도를 사용하여 불안장애가 있는 피험자를 객관적인 자료에 의해 선발 할 수 있는 도구가 될 것이라고 사려된다.

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암환자 인식에 관한 연구 - 간호사ㆍ의사를 중심으로

  • 조인향
    • 호스피스학술지
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    • 제2권1호
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    • pp.58-74
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    • 2002
  • This paper constitutes a descriptive investigation and used a structured questionnaire to investigate nurses' and doctors' recognition of cancer patients. The subjects were extracted from the medical personnel working at the internal medicine, the surgery ward, the obstetrics and gynecology department, the pediatrics department, the cancer ward, and the emergency room of five general hospitals located in Seoul and Gyeonggi Province. The research lasted from August, 2001 to September 2001. Total 137 nurses and 65 doctors were included and made out the questionnaires directly distributed by the investigator. The study tool was also developed by the investigator and consisted of such items as the demographic and social characteristics, the medical personnel's recognition degree of cancer and cancer patients, their recognition of the management of cancer patients, and their participation in a hospice. The results were analyzed using the SPSS Window program in terms of technological statistics, ranks, t-test, and ANOVA. The reliability was represented in Cronbach' α=.75. The nurses' and doctors' recognition degree of cancer and cancer patients had an overall average of 3.86 at the 5 point-scale. The items that received an average of 4.0 or more included 'Medical personnel should explain about the cancer cure plans to the cancer patient and his or her family', 'A patient whose case has been diagnosed as a terminal cancer should be notified of it, 'If I were a cancer patient, I would want to get informed of it,' and 'Cancer shall be conquered whenever it is'. In the meantime, the items that received an average of 3.0 or less was 'My relationship with the cancer patient's family has gotten worse since I announced his or her impending death.' And according to the general characteristics and the difference test, the recognition degree of cancer and cancer patient was high among the subgroups of nurses, females, married persons, who were in their 30s, who had a family member that was a cancer patient, and who received a hospice education. The biggest number of the nurses and doctors saw 'a gradual approach over several days'(68.8%) as a method to tell a cancer patient about his or her cancer diagnosis or impending death. Those who usually tell tragic news were the physician in charge(62.8%), the family members or relatives(32.1%) and the clergymen(3.8%) in the order. The greatest number of them recommended a cancer patient's home as the place where he or she should face death because they thought 'it would stabilize his or her mentality'(91.9%) while a number of them recommended the hospital because they 'should give the psychological satisfaction to the patient'(40%) or 'should try their best until the last moment of the patient's death'(30%). A majority of the medical personnel regarded 'smoking or drinking' and 'diet' as the causes of cancer. The biggest symptom of a cancer patient was 'pain' and the pain management of a cancer patient was mostly impeded by the 'excessive fear of drug addiction, tolerance to drugs and side effects of drugs' by medical personnel, the patient, and his or her family. The most frequently adopted treatment plan of a terminal cancer patient was 'to do whatever the patient or his or her family wants' to resort to a hospice' and 'to continue active treatment efforts' in the order. The biggest reasons why a terminal cancer patient went to see a doctor were 'pain alleviation' 'control of symptoms other than pain(intravenous supply)' and 'incapability of the patient's family' in the order. Terminal cancer patients placed their major concern in 'spiritual(religious) matter' 'emotional matters' their family' 'existence' and 'physical matters' in the order. 113(58.5%) of the whole medical personnel answered they 'would recommend' an alternative treatment to a terminal cancer patient mostly because they assumed it would 'stabilize the patient's mentality.' Meanwhile, 80(41.5%) of them chose 'not to recommend it mostly due to the unverified effects and high cost of it(78.7%). A majority of them, I. e. 190(94.1%) subjects said they 'would recommend' a hospice to a terminal cancer patient mostly because they thought it would help the patient to 'mentally prepare'(66.6%) Only 17.3% of them, however, had received a hospice education, most of which was done through the hospital duty education(41.4%) and volunteer training(34.5%). The follows are results of this study: 1. The nurses and the doctors turned out to be still passive and experience confusion in dealing with a cancer patient despite their great sense of responsibility for him or her. 2.Nurses and Doctors realize the need of a hospice, but an extremely small number of them participate in a hospice education or performance. Thus, a whole recognition of a hospice should be changed, for which purpose a hospice education for nurses and doctors should be provided. 3.Terminal cancer patients preferred their home to a hospital as the place to face their impending death because they felt it would bring 'mental stability.' And most of nurses and doctors think it would be unnecessary for them to be hospitalized just for control of their symptoms. Accordingly a terminal cancer patient can be cared at home, and a home hospice care needs to be activated.

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