• 가정과삶의질연구
• /
• 제21권2호
• /
• pp.1-18
• /
• 2003

In recent years, Korean society has witnessed an increased interest in the observance of everyday life proprieties, building healthy families, and psychological well-being of family members. The main purpose of this research was to examine the relationships among the practice of everyday life proprieties, dynamics of family systems, and psychological well-being of Korean married couples. A self-report Questionnaire was used to collect data from married couples with a child over four-years-old who are currently residing in Seoul. 513 couples(1026 individuals) were used for the final data analysis. Statistical analyses were conducted using frequencies, percentages, means, standard deviations, Cronbach'α, Pearson correlation, paired t-test, factor analysis, and multiple regression. The findings of this study are as follows: First, the level of the practice of everyday life propriety was relatively high in both husbands and wives, and no significant gender difference was found in the level. Yet, there were some statistically significant differences in certain sub-dimensions. Wives showed a higher degree of performance in public decorum and social etiquette, whereas husbands exhibited a higher degree of performance in family decorum and communication manners. The family systems were highly dynamic, according to both husbands and wives, and there was no difference between husbands and wives. As for the sub-dimensions, the extent of communication was found to be higher among husbands than among wives. Psychological well-being was again relatively high for both husbands and wives, with husbands significantly higher than wives. Second, the findings indicate that the causal model did fit the data well, and that a myriad of background variables had direct and indirect impacts on psychological well-being, and these relationships were mediated by several variables in the sub-dimension of proprieties observance, family adaptability, and the degree of communication. The implication is that the practice of life propriety, an intervening variable, is crucial in improving psychological well-being of married couples. The findings of this research demonstrate that there are significant causal relationships among the practice of everyday life propriety, family systems dynamics, and psychological well-being. In addition, the observance of proprieties is shown to be a concept that can be used as an important predictor in the area of family resource management. Further research is needed to expand its focus on the practice of proprieties in the family resource management. More concrete and specialized family life education programs should be developed to help build healthy families. Lastly, the results indicate that proprieties education needs to be incorporated in family policies in order to promote the quality of family life.

• 한국정보통신학회논문지
• /
• 제14권12호
• /
• pp.2783-2790
• /
• 2010

본 연구에서는 무선 랜 표준안인 802.11n에서 채널 부호화 알고리즘으로 채택된 LDPC부호의 복호 알고리즘의 저복잡도에 대해 연구를 하였다. 샤논의 한계에 근접하기 위해서는 큰 블록 사이즈의 LDPC 부호어 길이와 많은 반복횟수를 요구한다. 이는 많은 계산량을 요구하며, 그리고 이에 따른 전력 소비량(power consumption)을 야기 시키므로 본 논문에서는 세 가지 형태의 저복잡도 LDPC 복호 알고리즘을 제시한다. 첫째로 큰 블록 사이즈와 많은 반복 횟수는 많은 계산량과 전력 소모량을 요구하므로 성능 손실 없이 반복횟수를 줄일 수 있는 부분 병렬 방법을 이용한 복호 알고리즘, 둘째로 early stop 알고리즘에 대해 연구 하였고, 셋째로 비트 노드 계산과 체크 노드 계산 시 일정한 신뢰도 값보다 크면 다음 반복 시 계산을 하지 않는 early detection 알고리즘에 대해 연구 하였다. 위 세가지 알고리즘을 적용하여 FPGA 칩에 구현한 결과 N=648, R=1/2일 때, 복호 속도는 알고리즘을 적용하지 않았을 때 보다 거의 두배에 가까운 110Mbps이고, 약 45%의 디바이스 사용량이 감소하였다.

• 한국가스학회지
• /
• 제20권4호
• /
• pp.50-57
• /
• 2016

도시가스사업법령에서는 매설된 강관에는 부식을 방지하기 위하여 전기방식 조치를 하도록 하고 있다. 미국 등 국외에서 방식전위기준은 방식전류가 흐르는 상태에서 포화황산동 기준전극으로 -850 mV(On potential) 이하로 하도록 하고 있으며, 이 경우 전압강하(IR-Drop)를 고려하도록 하고 있다. 그러나, 국내의 방식전위 기준은 포화황산동 기준전극으로 -850mV 이하로 하도록 규정하고 있을 뿐, 전압강하를 고려하도록 규정하고 있지 않다. 다만, KGS GC202에서 가스시설에 대한 전위측정은 가능한 한 가스시설과 가까운 위치에서 기준전극으로 실시하도록 하고 있다. 본 연구에서는 기준전극을 매설배관 주위, 지표면 및 지표면 하부 50cm에 각각 설치하여 방식전위를 측정하고, 측정위치에 따른 전위값을 비교하여 전압강하를 분석하였다. 전위 측정결과 기준전극을 매설배관 가까이에 위치하였을 때 IR-Drop이 가장 적고, 지표면에 기준전극을 위치할 때 IR-Drop 값이 가장 큼을 확인하였다. 따라서, 고체기준전극을 매설하는 경우에는 가능한 한 매설배관 가까이에 설치할 것을 제안하였다. 또한, 기존에 설치된 배관의 원격전위 측정을 위해서는 기존에 설치된 전위측정용터미널(T/B) 하부에 고체기준전극을 매설할 수 있도록 전기방식 기준전극 설치 기준 개정(안)을 제시하였다.

• 전기학회논문지
• /
• 제62권6호
• /
• pp.803-810
• /
• 2013

The purpose of this research is to analyze the effect of shape of the inductive textile electrode on the non-contact heart activity sensing, based on the magnetic-induced conductivity principle. Four types of the inductive textile electrodes were determined according to the combinations of the two shape features. A fiber-metal hybrid-typed conductive thread was developed and applied to materialization of the textile electrodes by embroidery method. The heart activity was extracted through the textile electrode sewn on a T-shirt. The experiments were implemented to constantly measure the heart activity for 20 seconds, in each case of 5 healthy male subjects. The heart activity signals acquired in each type of the inductive textile electrode were analyzed, 1)by drawing a comparison of morphology with those of ECG signal (LeadII), and 2)by calculation of the normalized mean and standard deviation of magnitude of the heart activity signals. The analysis resulted that the relatively better quality of signals were acquired in the 'square' types in the matter of whole shape, while the better results were obtained in 'donut' types in the matter of center hole. Accordingly, the relatively best quality of signals was obtained in the case of 'Square-Donut' type of the inductive textile electrode.

• 치위생과학회지
• /
• 제11권6호
• /
• pp.553-562
• /
• 2011

치과위생사의 직무스트레스 수준과 관련된 직무요인을 파악하기 위하여 부산 경남지역의 500명 중 부적절하게 조사된 184명을 제외한 316명을 연구대상으로 한국인 직무스트레스 측정도구 기본형(KOSS-43)을 활용하여 자기기입식 설문조사를 시행한 결과는 다음과 같다. 1. 치과위생사의 전체 직무스트레스는 $52.42{\pm}4.95$로 나타났으며, 세부항목별로는 관계갈등이 $64.56{\pm}12.17$로 가장 높게 나타났고, 물리환경 $59.85{\pm}13.59$, 조직체계 $54.60{\pm}13.51$, 직무요구 $52.37{\pm}11.47$, 보상부적절 $51.71{\pm}10.58$, 직무자율성 결여 $48.14{\pm}12.97$, 직무불안정 $46.68{\pm}9.25$, 직장문화 $41.46{\pm}15.98$의 순으로 나타났다. 2. 치과위생사의 직무스트레스와 관련된 요인으로는 일반적 특성 중 운동, 직무관련 특성 중 신체적 부담감과 반복 작업시간 등 이었다. 이상의 연구결과 치과위생사의 직무스트레스는 한국인 근로자의 직무스트레스 수준과 비교하여 평균이상의 높은 수준을 나타내었고, 직무스트레스의 예방을 위하여 적절한 직무부담과 작업시간 조절을 통한 신체적 부담을 줄일 수 있는 방법과 치과위생사의 직무특성을 고려한 적절한 작업량 조절방안 등이 필요할 것이다.

• 복식
• /
• 제43권
• /
• pp.169-186
• /
• 1999

The objectives of the present study were to investigate the relationship between self-concept and clothing buying pattern in accordence with their self-concept. The method employed to conduct this study was normative-descriptive survey using questionnaires. Subjects were 438 high school girls in Seoul and the survery was implemented from the begining of May 1998 to the end of June 1998. The questionnaires were completed by students during class. Mean Standard Deviation Chi-Squeare and t-test were employed to analize the data gathered. The results are summarzed as follows: (1) The group who has the higher score in total positive self, self identity self satisfacton self behavior physcial self moral ethical self personal self and family self cares more about economical efficiency of clothing than the group who has the lower score. (2) The group who has the higher score in total positive self, self satisfaction personal self and family self attachs greater importance to the practical use of clothing than those who scored lower with in said categories of self concept. (3) The group who has the higher total positive self score cares originality more than the group who has the lower score when they purchase outdoor garment. (4) The group who has the lower social self score cares modesty and ostentation more than the group who scored higher in social self. (5) The group who has the higher score in positive self behavior personal self and family self cares about convenence in care and maintenance of the clothing than the group has the lower score. (6) Friends buying and use experiences of herself and the observation of other's attire are the main source of fashion information for the present Korean high school girls. The group who has the higher score in total positive self personal self family self, self identity self satisfactio self behavior used their own experiences more often as a source of fashion information than those who scored lower with in said categories of self concept. The group who has the higher score of total positive self personal self family self, self identity self satisfaction self behavior uses family members more often as a source of fashion information than those who scored lower with in said categories of self concept. The group who has the higher score in self identity and self behavior uses store displays more often than the group who scored lower. (7) Bonded processing goods stores or fancy goods shops(haberdashery) located in trendy shopping district discount stores and outlet stores of the famous manufactures are main places where Korean high school girls buy their outdoor garments. The group who has the higher score in social self, self identity and personal self uses department stores more often and rerely shops at bonded processing goods stores of fancy goods shops located in thendy shopping district compared to those who scored lower with in said categories of self concept.

• 한국동물학회지
• /
• 제38권4호
• /
• pp.550-556
• /
• 1995

c-myc proto-oncogene은 여러 세포들의 분화와 형질전화에 뿐만 아니라 정상세포의 분열조절에도 관여한다고 알려져왔다. 특히 생쥐의 초기배아에서 c-myc mRNA가 발현되고 antisense c-myc oligomer의 미세주입에 의해 배발생이 억제된다는 연구결과는 c-myc이 초기배아의 발생 및 분열에 관여하는 것을 시사한다. 그러나 최근까지 초기배아에 존재하는 c-myc promoter의 기능적 활성화에 관한 연구는 미진하였다. 이를 위하여, c-myc promoter와 대장균의 lacZ 유전자를 결합시킨 두 종류의 vector(pcmyc-Gall, pcmyc-Ga12)를 만들어 수정란의 전핵에 미세주입한 후, 배 발생에 따른 c-myc promoter의 활성화를 lacZ 유전자의 산물인 $\beta$-galactosidase 에 의한 X-gal 염색으로 조사하였다. 미세주입된 초기 배아는 2세포기 배아를 포함하는 여러 발생단계에서 $\beta$-galactosidase 의 활성을 보였다. 이는 c-myc 유전자가 배아의 게놈유전자로부터 발현되며, 또한 궁극적으로 초기 배아의 발생과정에 중요한 역할을 하고 있음을 시사하고 있다.

• Journal of Acupuncture Research
• /
• 제25권4호
• /
• pp.41-49
• /
• 2008

Objectives : This study was aimed at examining significant curative effects of Cupping therapy on Cerebral infarction patients with hyperlipidemia. Methods : The subjects in this study were fifty-two patients visited or admitted to Dong-seo Oriental Hospital who broke out with Cerebral infarction from March 2007 through February 2008, with high total cholesterol(240mg/$d\ell$ above) or high triglyceride(200mg/$d\ell$ above) or low density lipoprotein(160mg/$d\ell$ above) Before prescription, they were tested for total cholesterol, triglyceride, low density lipoprotein with fasting and were then rescribed the cupping therapy for 4 weeks(take an average ten times), after which they were retested for total cholesterol, triglyceride, low density lipoprotein. Results : 1. In the high total cholesterol group(triglyceride and low density lipoprotein are normal), statistical significance of total cholesterol changes was recognized before and after the treatment. 2. In the high triglyceride group(total cholesterol and low density lipoprotein are normal), statistical significance of triglyceride changes was recognized before and after the treatment. 3. In the high low density lipoprotein group(total cholesterol and triglyceride are normal), statistical significance of triglyceride changes was recognized before and after the treatment. 4. In the high total cholesterol and high triglyceride group(low density lipoprotein is normal), statistical significance of total cholesterol changes was recognized before and after the treatment. But, triglyceride changes was not that. 5. In the high total cholesterol and high low density lipoprotein group(triglyceride is normal), statistical significance of total cholesterol and low density lipoprotein changes were recognized before and after the treatment. 6. In the high triglyceride and high low density lipoprotein group(total cholesterol is normal), statistical significance of triglyceride changes was recognized before and after the treatment. But, low density lipoprotein changes was not that. 7. In the high total cholesterol and high triglyceride and high low density lipoprotein group, statistical significance of total cholesterol changes and low density lipoprotein changes were recognized before and after the treatment. But, triglyceride changes was not that. Conclusions : Cupping therapy decreased total cholesterol in whole hyperlipidemia group including high total cholesterol.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
• /
• 제36권3호
• /
• pp.202-205
• /
• 2010

Introduction: The aim of the present study was to investigate the effect of mechanical irrigation in combination with mouthwash of antimicrobial agents on salivary bacterial counts. Materials and Methods: This study was performed with a randomized study employing a panel of 40 healthy volunteers (20 males and 20 females) between the age of 26 and 32 years. Volunteers were randomly put in one of four treatment groups. In the first group, 0.2 mL of non-stimulatory saliva was collected from every subjective person. Then, saliva was collected after rinsing with chlorhexidine (CHX) for 1 minute. In the second group, non-stimulatory saliva was collected, and then saliva was collected after rinsing with CHX and irrigation with saline. In the third and fourth groups, the same procedures as the first and second groups were performed with povidone iodine (PVI) instead of CHX. All of these samples were cultured for 48 hours aerobically. The reduction rates of colony-forming units (CFU) were calculated for each group. The reduction rate between each group was tested statistically using student t-test. Results: Using CHX in combination with saline irrigation showed a significant decrease of the salivary bacterial CFU when compared with only using CHX.(P<0.01) And using PVI with saline irrigation showed a little decrease of the CFU when compared with only using PVI, but there was no statistical significance.(P>0.01) Conclusion: It was concluded that the CHX or PVI used with saline irrigation made the salivary bacterial counts reduced more than when CHX or PVI was used alone as an oral antiseptic agent.

• 치위생과학회지
• /
• 제14권3호
• /
• pp.411-416
• /
• 2014

본 연구는 임플란트 수술 시 의식하진정법이 환자의 통증과 불안에 미치는 영향을 평가하고자 2013년 6월 1일부터 8월 30일까지 천안시 일개 치과병원에 내원한 임플란트 수술환자 95명을 대상으로 조사하였다. 임플란트 수술 전과 후의 불안 및 통증의 정도를 파악하고 치과불안과 통증에 영향을 미치는 요인을 규명하기 위하여 수술 전, 후 통증(VAS)과 수술 중 불안(PQ)을 측정하고 수술 후 통증(SF-MPQ)을 측정하였다. 연구결과를 요약하면 다음과 같다. 임플란트 수술 형태의 특성에 따라 분석한 결과 수면군과 비수면군간의 통계적으로 유의한 차이를 보인 특성은 수술부위, 수술치아개수, 수술시간, 부가적인 수술형태 등이었다(p<0.001). 수술 전, 후 통증의 차이를 살펴본 결과 수술 전 예상되는 통증과 수술 후 경험했던 통증의 차이는 수면군(2.30)이 비수면군(0.98)이 비해 통계적으로 유의한 차이가 있었다(p<0.05). 임플란트 수술환자의 통증 및 불안에 영향을 미치는 요인은 성별과 연령, 임플란트 수술경험및 수술시간, PCS였으며 공통적으로 관련된 요인은 PCS였다(p<0.05). 따라서, 치과 임상에서는 임플란트 수술 전, 후 심리적인 안정을 제공할 수 있도록 여성이거나 나이가 적을수록 수술치아개수와 수술시간이 길어질 것으로 예상될 때 의식 하진정법의 추천과 정확한 정보를 제공함으로써 편안한 환경에서 치료할 수 있도록 해야 한다. 또한, 의식 하 진정법시 PCS를 통해 보다 체계적이고 객관적인 행동 전략이 필요하며, 환자관리를 위한 끊임없는 연구 및 교육프로그램 개발이 진행되어야 할 것이다.