• 여성건강간호학회지
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• 제10권4호
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• pp.351-359
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• 2004

Purpose: A descriptive study was conducted to examine the levels of distress, state anxiety, and physiologic responses in postoperative patients under patient controlled analgesia (PCA), and to determine correlations among the variables. Method: The study sample included women who underwent an elective hysterectomy procedure or other gynecologic surgeries(N=100). Subjective distress was assessed by visual analog scales around 8 hours postoperatively. Trained nurses collected objective distress data through observation of subject's behavior and vital signs. Data were analyzed with frequencies, percentages, means, Pearson correlation coefficients, ANOVA, and the Scheffe post test using SPSS/PC 11.0. Result: Subjective distress, objective distress, and state anxiety scores were relatively low, except pain scores(5.31 out of 10.0) among sub-scales of subjective distress. Women who had a total abdominal hysterectomy showed significantly higher levels of both subjective distress and state anxiety than those after a minor gynecologic surgery. In relationships among variables, subjective distress correlated positively with postoperative state anxiety, but not with the amount of analgesic medication, verified by further analysis on sub-scales of subjective and objective distress. The higher the levels of state anxiety, the higher the levels of tension, dyspnea, facial change, and systolic blood pressure observed. Conclusion: Regardless of effective pain management, most postoperatively experienced distress in gynecological patients was derived from surgery associated anxiety and pain. Specific psychological strategies should be established as well for those with high levels of state anxiety to facilitate prompt recovery.

• Molecules and Cells
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• 제37권8호
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• pp.592-597
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• 2014

The cell membrane provides critical cellular functions that rely on its elaborate structure and organization. The structure of turtle membranes is an important part of an ongoing study of erythrocyte membranes. Using a combination of atomic force microscopy and single-molecule force spectroscopy, we characterized the turtle erythrocyte membrane structure with molecular resolution in a quasi-native state. High-resolution images both leaflets of turtle erythrocyte membranes revealed a smooth outer membrane leaflet and a protein covered inner membrane leaflet. This asymmetry was verified by single-molecule force spectroscopy, which detects numerous exposed amino groups of membrane proteins in the inner membrane leaflet but much fewer in the outer leaflet. The asymmetric membrane structure of turtle erythrocytes is consistent with the semi-mosaic model of human, chicken and fish erythrocyte membrane structure, making the semi-mosaic model more widely applicable. From the perspective of biological evolution, this result may support the universality of the semi-mosaic model.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권1호
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• pp.596-610
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• 2017

As a 'network of networks,' the Internet globally connects a huge number of regional and individual networks and provides us with new hopes and possibilities. However, a nation-state as well as the legal order of the 'state'(constitution) has limitations that are all too clear in order to regulate this new world formed by the Internet. It will soon be impossible for a single state to control these global information networks, and they will not be consistently and vertically operated and managed by anyone. As a result, ideologies or jurisdictions that support the legal order of a nation-state are no longer sufficient to control information delivery beyond borders. Furthermore, the development of the Internet and emergence of cyber space in the information society has led to the idea of 'extinction' of nation-states. Nevertheless, the conclusion that the state will be extinct due to the development of the information society is still nothing more than a hasty assumption. In other words, the information society does not indicate the end of the state. Rather, we must now clearly perceive that the object of our research and discussions must be the role and function of the nation-state in the newly emerged information society in the global aspect and international aspect, as well as in relationships with individuals or organizations that now have unimaginably strong information power. It is clear at this point that nation-states will lose the function and authority they have enjoyed or exercised to a certain degree, but this certainly does not indicate that nation-states are, and will be, unnecessary or useless. Rather, it is necessary to focus on the list of tasks that must be accepted by nation-states in the changed information society, as well as responsibilities and means to perform those tasks.

• 수면정신생리
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• 제2권2호
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• pp.171-179
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• 1995

Objectives : This study was carried out to determine whether the state anxiety may affect sleep on the night before surgery. Methods : The researcher examined the clinical charts of patients who were scheduled to receive surgery by general anesthesia the following day and then had semistructural interview with patients. In addition Spielberger's State Anxiety Inventory(1972), presleep questionnaire and postsleep questionnaire were administered to the patients. One hundred patients who responded to the questions were divided into three groups based on the state anxiety scores; low(n=35), middle(n=27) and high(n=38). Demographic and clinical characteristics of patients, some possible factors affecting sleep, daytime status and nighttime sleep before surgery were compared among three groups. Results : 1) There was no significant difference in demographic characteristics and some possible factors affecting sleep on the night before surgery among three groups. 2) In terms of clinical characteristics, the expectancy of surgical result was significantly different among three groups. More patients in low anxiety group than in middle and high anxiety groups, predicted surgical results as good, while more patients in middle and high anxiety groups than in low anxiety group could not predict their surgical results. 3) For daytime status, high anxiety group felt more tired compared to low anxiety group, but there was no significant difference in daytime nap among three groups. 4) For nighttime sleep before surgery, high anxiety group expected poor sleep and in fact, waked more frequently during sleep than low anxiety group. However there was no difference in bed time, sleep latency, rise time, total sleep time, sleep depth and sleep quality among three groups. 5) The need for hypnotics was higher before bedtime and also after rise in high anxiety group compared to low anxiety group. Conclusions : These results indicate that the individuals with high state anxiety before surgery have poor sleep and furthermore suggest that anxiolytics and/or hypnotics may be required to decrease anxiety and improve sleep for those with high state anxiety.

• 한국간호교육학회지
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• 제8권1호
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• pp.7-16
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• 2002

Purpose : The purpose of this study was to examine the relationship between the high school-girls' trait-state anger, personal relationship position in class and bullying behaviors, and to develope the nursing intervention to prevent the damages of young people's mind according to the bullying conditions. Method : The objects of this study chose from the girls high schools in 'D' city and 233 students answered the questions. The data were collected from June. 11 to 20. 2001. The major instruments used for this study were Trait Anger-State Anger Scale(Chon, 1995) to inquire the level of anger and Bullying Behaviors Scale(Kim, 2000) and personal relationship position in class. Statistical analysis for the research included descriptive statistics, t-test and correlational analysis, and for the analysis of data the SPSS program was used. Result : The results of this study were summarized as follows: 1) Total participant's trait anger had a positive correlation with state anger and bullying behaviors. Also, state anger was positively correlated to bullying behaviors. 2) The participants in the classes with perceived bullying phenomenon showed higher score of trait anger and bullying behaviors than those in the classes with non-perceived bullying phenomenon. 3) According to personal relationship position of the class, central group of the classes with perceived bullying phenomenon showed higher score of trait anger and bullying behaviors than those of the classes with non-perceived bullying phenomenon. 4) Also, central group of the classes with perceived bullying phenomenon showed higher score of bullying behaviors than peripheral group in the same classes. 5) The peripheral group of the classes with perceived bullying phenomenon showed higher score of bullying behaviors than those of the classes with non-perceived bullying phenomenon. 6) Central group's trait anger of the classes with perceived bullying phenomenon had a positive correlation to state anger and bullying behaviors. Also, central group's state anger was positively correlated to bullying behaviors. conclusion : In conclusion, the level of trait anger and state anger in high school girls affected to occur the bullying behaviors in students and especially, the trait anger in central group students was primary factor for the effect.

• 전자공학회논문지S
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• 제35S권10호
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• pp.118-125
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• 1998

본 논문에서는 새로운 사이드 매치 왜곡 함수를 이용한 적응 FSVQ(Finite State Vector Quantization)방법을 제안한다. 기존의 사이드 매치 왜곡 함수는 블럭 경계 사이의 휘도 천이를 부드럽게 해주고 블럭간의 상관 관계가 높은 평탄 영역에서는 적절한 상태 부호책을 작성할 수 있으나 블럭간의 상관 관계가 낮은 윤곽선 영역에서는 적절한 상태 부호책을 작성할 수 없다. 본 논문에서 제안한 왜곡 함수는 기존의 사이드 매치 왜곡 함수에 영상의 특징을 나타내줄 수 있는 분산 값을 가중치로 사용하여 기존의 사이드 매치 왜곡 함수보다 적절한 상태 부호책을 작성할 수 있도록 한다. 또한 상태를 잘못 예측하였을 경우 이를 정정한 후, 처리하게 함으로써 만족할만한 영상의 질을 얻을 수 있도록 한다.

• 한국컴퓨터정보학회논문지
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• 제18권5호
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• pp.147-156
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• 2013

현대 사회의 각 분야는 산업화와 과학기술의 발전으로 빠르게 변화한다. 그러나 빠른 사회 변화의 부작용으로 다양한 문제가 발생하고 있는데, 그 중 범죄는 큰 문제이다. 본 논문은 범죄를 예측하기 위한 모델로 마코프 체인을 적용한 범죄 예측 모델링을 제안한다. 기존의 마코프 체인 모델링은 한 사건의 전체 상태만으로 미래 예측 확률을 구하였으나, 본 논문은 사건 발생 확률 예측을 높이기 위해 전체 상태 예측 확률과 최근 상태 예측 확률로 나누었다. 그리고 전체 상태 예측 확률과 최근 상태 예측 확률의 평균값을 적용하여 미래 예측 확률 모델링으로 구현했다. 데이터는 범죄 발생 건수를 적용하였다. 그 결과 전체 상태만을 대상으로 예측확률을 적용 하였을 때 보다, 전체 상태와 최근상태로 나누어 확률 값을 구한 후, 그 평균값을 예측 확률로 적용하였을 때, 범죄 발생 예측에 근접하다는 결론을 얻었다.

• Bulletin of the Korean Chemical Society
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• 제33권12호
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• pp.4161-4164
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• 2012

Density functional MO calculations for the methylsilole anion of $[C_4H_4SiMe]^-$ and methylgermole anion of $[C_4H_4SiMe]^-$ at the B3LYP (full)/6-311+$G^*$ level (GAUSSIAN 94) were carried out and characterized by frequency analysis. The ground state structure for the methylsilole anion and methylgermole anion is that the methyl group is pyramidalized with highly localized structure. The difference between the calculated $C_{\alpha}-C_{\beta}$ and $C_{\beta}-C_{\beta}$ distances are 9.4 and 11.5 pm, respectively. The E-Me vector forms an angle of $67.9^{\circ}$ and $78.2^{\circ}$ with the $C_4E$ plane, respectively. The optimized structures of the saddle point state for the methylsilole anion and methylgermole anion have been also found as a planar with highly delocalized structure. The optimized $C_{\alpha}-C_{\beta}$ and $C_{\beta}-C_{\beta}$ distances are nearly equal for both cases. The methyl group is located in the plane of $C_4E$ ring and the angle between the E-Me vector and the $C_4E$ plane for the methylsilole anion and methylgermole anion is $2.0^{\circ}$ and $2.3^{\circ}$, respectively. The energy difference between the ground state structure and the transition state structure is only 5.1 kcal $mol^{-1}$ for the methylsilole anion. However, the energy difference of the methylgermole anion is 14.9 kcal $mol^{-1}$, which is much higher than that for the corresponding methylsilole monoanion by 9.8 kcal $mol^{-1}$. Based on MO calculations, we suggest that the head-to-tail dimer compound, 4, result from [2+2] cycloaddition of silicon-carbon double bond character in the highly delocalized transition state of 1. However, the inversion barrier for the methylgermole anion is too high to dimerize.

• 한국음향학회지
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• 제34권2호
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• pp.171-176
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• 2015

본 논문에서는 Hidden Markov Model(HMM) - Universal Background Model(UBM)의 주 상태 정보 기반의 i-vector 추출 기술을 제안한다. Ergodic HMM이 UBM을 추정하는데 쓰였으며, 이를 통해 동일 화자 음성에도 다양하게 존재하는 특성을 HMM states로 분류할 수 있다. 제안한 방법을 이용하면 HMM의 state 개수에 따라 i-vector 들이 추출되는데, 주 상태 정보 방법을 통해 이들 중 하나를 선택한다. 제안한 방법을 검증하기 위해 National Institute of Standards and Technology(NIST) Speaker Recognition Evaluation(SRE) database를 이용하여 실험을 하였으며, Equal Error Rate(EER) 성능 수치에서 12 %의 성능 향상을 확인할 수 있었다.

• 한국정보통신학회논문지
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• 제13권3호
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• pp.514-521
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• 2009

영구자석 매입형 동기 전동기(IPM : Interior-mounted Permanent Magnet Motor)의 전류제어는 릴럭턴스에 의존하는 최대토크 특성 때문에 표면부착형 동기전동기(SPM : Surface-mounted Permanent Magnet Motor)보다 더 복잡하다. 그러므로 고성능 토크제어를 위해서는 d축 전류와 q축 전류의 상태 디커플링이 필요하다. 하지만 상태들 사이에 영향을 미치는 인덕턴스의 변화 때문에 상태 디커플링이 어렵다. 그러므로 이 변화에 대처할 수 있는 상태 디커플링 방법의 개발이 필요하며 이를 이용한 전류의 독립제어가 필요하다. 본 논문에서는 IPM모터 에 대하여 가상 상태를 갖는 슬라이딩 모드 제어를 이용하여 상태 디커플링이 가능한 접근법을 제안한다. 제안된 슬라이딩 평면은 의란과 불확실성이 존재하더라도 PI 전류 제어기에 의해서 제어되는 공칭 시스템의 동특성을 가질 수 있다.