• Tuberculosis and Respiratory Diseases
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• 제67권1호
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• pp.52-58
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• 2009

폐동정맥기형은 드문 폐혈관 질환으로 출혈, 뇌농양, 기이 색전증(paradoxical embolism)에 의한 여러 신경학적 합병증의 발생 위험을 증가시켜 치료를 요한다. 과거에는 수술적으로 제거했으나, 최근에는 주로 코일 및 풍선 등의 다양한 색전물질을 이용한 경피적 색전술을 시행하여 치료하는 추세이다. 거대 폐동정맥기형의 경우에는 색전술 시행 과정에서 코일이 전신 순환으로 빠져 나가 장치 색전증 등의 합병증을 일으킬 위험이 높다. 저자들은 호흡곤란을 주소로 내원한 81세 남자 환자에게서, 지속되는 저산소혈증의 원인으로 거대 폐동정맥기형을 진단하고, Amplatzer$^{(R)}$ 혈관폐색장치를 이용한 경피적 색전술로 치료한 1예를 경험하였기에, 문헌 고찰과 함께 보고하는 바이다.

• 기본간호학회지
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• 제5권2호
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• pp.269-279
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• 1998

In nursing research that the data is collected through clinical observation, analysis of clinical recording or coding of interpersonal interaction in clinical areas, testing and reporting interrater reliability is very important to assure reliable results. Procedures for interrater reliability in these studies should follow two steps. The first step is to determine unitizing reliability, which is defined as consistency in the identification of same data elements in the record by two or more raters reviewing the same record. Unitizing reliability have been rarely reported in previous studies. Unitizing reliability should be tested before progressing to the next step as precondition. Next step is to determine interpretive reliability. Cohen's kappa is a preferable method of calculating the extent of agreement between observer or judges because it provides beyond-chance agreement. Despite its usefulness, kappa can sometimes present paradoxical conclusions and can be difficult to interpret. These difficulties result from the feature of kappa which is affected in complex ways by the presence of bias between observers and by true prevalence of certain categories. Therefore, percentage agreement should be reported with kappa for adequate interpretation of kappa. The presence of bias should be assessed using the bias index and the effect of prevalence should be assessed using the prevalence index. Researchers have been reported only global reliability reflecting the extent to which coders can consistently use the whole coding system across all categories. Category-by-category reliability also need to be reported to inform the possibility that some categories are harder to use than others.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제42권5호
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• pp.278-283
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• 2016

Objectives: The maxillary sinus mucosa is reported to recover to preoperative sterility after sinus floor elevation. However, when drainage of maxillary sinus is impaired, recovery can be delayed and maxillary sinusitis can occur. Therefore, in this study, we investigated the correlations between anatomic variants that can interrupt the ostium of the maxillary sinus and incidence of complication after sinus lifting. Materials and Methods: The subjects are 81 patients who underwent sinus lifting in Wonkwang University Dental Hospital (Iksan, Korea). Computed tomography (CT) images of the subjects were reviewed for presence of nasal septum deviation, anatomic variants of the middle turbinate, and Haller cells. Correlations between anatomic variations and occurrence of maxillary sinusitis were statistically analyzed. Results: Patients with anatomic variants of ostio-meatal units, such as deviated nasal septum, concha bullosa or paradoxical curvature of the middle turbinate, or Haller cells, showed a higher rate of complication. However, only presence of Haller cell showed statistically significant. Conclusion: Before sinus lifting, CT images are recommended to detect anatomic variants of the ostio-meatal complex. If disadvantageous anatomic variants are detected, the use of nasal decongestants should be considered to reduce the risk of postoperative sinusitis.

• 한국콘텐츠학회논문지
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• 제12권12호
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• pp.146-155
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• 2012

이 연구는 세익스피어의 "로미오와 줄리엣"에 나타난 모순구조와 사랑의 이중성에 대한 실제 창작 작품을 분석하여 장면별 움직임의 적용과 의미연구를 시도하였다. 연구자는 작품에 나타난 모순구조와 사랑의 이중성을 versus(대(對))의미로 설정하고 이를 작품 "Romiet&Julio zwei Versus"로 창작하여 공연에 나타난 사랑의 이중성을 분석하였다. 분석도구는 라반의 동작분석방법으로 신체, 에포트, 공간, 쉐입의 네 가지로 구분하여 분석되었다. 분석결과 원작에 나타난 사랑의 이중성은 작가의 다원적 시각의 표현이며, 역설적 대비보다는 동질성의 극적구조로 나타났다. 창작 작품분석결과 사랑의 이중성은 궁극적으로 새로운 차원의 절대적 균형을 이루는 중요한 요인으로 작용되었음이 입증되었다.

• Asian Pacific Journal of Cancer Prevention
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• 제14권11호
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• pp.6233-6239
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• 2013

Diabetes represents a serious health problem. In the diabetic state, alterations in metabolism, increased susceptibility to infections and immunological changes occur. The suppression of the immune response has been identified as a relevant factor that contributes to the increase in the rate of infections in these patients. At the same time, breast cancer is the most frequent malignant tumor in women. The molecular and cellular mechanisms underlying cancer development have revealed that immune cells functionally regulate epithelial cancer development and progression. Breastfeeding has been hypothesized to reduce the risk of breast cancer. However, early systematic reviews have not yielded consistent findings for this association. The demand for human milk is increasing due to the promotion and consumer acceptance of the health benefits of consuming a natural product rich in bioactive components. However, due to changes in glucose metabolism, the components of the milk from diabetic women are modified depending on the time of evaluation. In this literature review, we summarize important new findings revealing the paradoxical role of breastfeeding in preventing the onset of breast cancer in diabetic mothers. We hypothesized that the milk component production in diabetic mothers is affected by changes in glucose metabolism. Therefore, adequate maternal glycemic control and an adequate duration of breastfeeding for diabetic mothers are crucial to ensure that the immunity components are able to confer protection against breast cancer.

• 디자인학연구
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• 제15권2호
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• pp.233-242
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• 2002

매스커스터마이제이션(mass customization)은 서로 상반되는 개념인 대량생산과 맞춤생산의 결합어로서, 가전산업은 규모의 경제를 위한 대량생산방식을 가지고 있기 때문에 이의 도입이 늦어지고 있다. 본 연구에서는 기존 연구에서 규명된 매스커스터마이제이션 유형의 고찰과 사례연구를 통해, 제품디자인의 시각으로 재구성하여 가전산업에 적합한 모델을 선정하고 이에 따른 디자인 전략을 수립하는 것을 중심으로 논의하였다. 매스커스터마이제이션은 커스터마이제이션의 주체와 시점에 따라 생산자측 커스터마이제이션(manufacturer side customization), 유통측 커스터마이제이션(deliverer side customization), 소비자측 커스터마이제이션(customer side customization)으로 구분할 수 있으며, 가전산업은 이 중에서 소비자측 커스터마이제이션이 가장 적합한 것으로 나타났다. 이를 위해 소비자 참여 디자인에 의한 소비자 요구 수렴의 활성화와, 소비자가 전문적인 지식없이도 커스터마이제이션을 가능하게 하는 제품디자인에서의 모듈화를 디자인전략으로 제안하였다. 또한, 생산자측에 부담을 주는 모델다양화 보다는 표준 플랫폼(platform)을 통해 제3의 생산자가 선택사양을 생산/유통할 수 있도록 하는 방안도 제시하였다. 매스커스터마이제이션의 시작점은 소비자의 요구를 파악하는 것이며, 향후 매스커스터마이제이션의 활성화를 위해서는 제품디자인 비전문가들로 구성된 소비자 참여 디자인을 위한 방법 및 도구의 연구와 개발이 이루어져야 할 것이다.

• 한국수학사학회지
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• 제21권3호
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• pp.31-52
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• 2008

무한(infinity)의 개념은 다른 과학적 개념들과 마찬가지로 진화의 역사를 지닌 개념이다. 우리는 여기에서 볼짜노(Bolzano)를 중심으로 논의를 전개하고자 하는데, 그는 형이상학적 관점에서가 아니라 수학적으로 실무한(actual infinity)을 수용한 최초의 인물로 여겨지기 때문이다. 볼짜노는 현대의 플라톤주의자들처럼 구성(construction)과정과는 무관하게 무한집합(infinite set)을 그 자체로 옹호하였는데, 이는 내포(comprehension)의 원리와 모든 개념에 대한 외연의 유일성(unicity)에 근거한다. 또한 그는 무한집합과 그 부분 사이에 1:1 대응(one-to-one correspondence)이 성립한다는 사실을 역설로 보지 않고 무한집합의 특징으로 인식했다. 그리스 시대에는 단 하나의 무한의 존재만 인정한 데 반해 그는 여러 종류의 무한의 존재를 인정했으며, 무한에 대한 논리적 정의를 수립하였다. 무한의 문제는 수학에서 점증하는 중요성을 지닌 구성적 방법(constructive method)의 시금석이 된다. 여기에서는 이에 대한 운을 떼는 것으로 그치고 본격적인 연구는 차후의 과제로 남겨두겠다.

• 수면정신생리
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• 제3권2호
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• pp.65-76
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• 1996

Natural sleep pattern and its physiology in childhood are much different from those in adulthood. Several aspects of clinical evaluation for sleepiness in childhood are more difficult than in adulthood. These difficulties are due to several factors. First, excessive sleepiness in childhood do not always develop functional impairments. Second, objective test such as MSLT may not be reliable since it is hard to be certain that the child understand instructions. Third, sleepiness in children is often obscured by irritability. paradoxical hyperactivity, or behavioral disturbances. Anseguently, careful clinical evaluation is needed for the sleepy children. Usual causes of sleepiness in children are the disorders that induce insufficient sleep such as sleep apnea syndrome, schedule disorder, underlying medical and psychiatric disorder, and so forth. After excluding such factors, we can diagnose the hypersomnic disorders such as narcolepsy, Kleine-Levin syndrome, and idiopathic central nervous system hypersomnia. Among the variety of those causes of sleepiness, I reviewed the clinical difference of narcolepsy and obstructive sleep apnea syndrome in childhood compared with in adulthood. Recognition of the childhood narcolepsy is difficult because even severely sleepy children often do not develop pathognomic cataplexy and associated REM phenomena until much later. Since childhood narcolepsy give srise to many psychological, academical problem. Practicers should be concerned about these aspects. Childhood obstructive sleep apnea syndrome is different from adult obstructive sleep apnea syndrome too. Several aspects such as pathophysiology. clinical feature, diagnostic criteria, complication, management, and prognosis differ from those in the adult syndrome. An important feature of childhood obstructive sleep apnea syndrome is the variety of severe complications such as behavioral disorders, cognitive impairment, cardiovascular symptoms, developmental delay, and ever death. Fortunately, surgical interventions like adenotosillectomy or UPPP are more effective for Childhood OSA than adult form. CPAP is a "safe, effective, and well-tolerated" treatment modality too. So if early detection and proper management of childhood OSA were done, the severe complication would be prevented or ever cured.

• 한국IT서비스학회지
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• 제16권2호
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• pp.139-156
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• 2017

Since the global financial crisis of 2008, the continuous development and innovation in technology-related fields such as information and communications technology (ICT) are likely to swim against the recession. In this paradoxical situation, the necessity of financial innovation through ICT is on the rise. For this reason, the appearance of Fintech is more meaningful as a new converged industry with the potential to lead financial innovation. The term of Fintech is derived from combining 'Finance' and 'Technology.' In South Korea, one of the most popular types of Fintech is mobile payment. KakaoPay, which is the first mobile easy payment service in Korea, is a much more simplified type of mobile payment service than ones used in the past, and is provided by the most popular mobile messenger service in Korea, KakaoTalk. However, KakaoPay has few active users in spite of its many advantages, which include convenience, simplicity, and a powerful platform. Thus, the main purpose of this paper is to investigate influencing factors of user resistance on KakaoPay. In order to investigate specific factors, a research model is developed based on the unified understanding of user resistance put forth by Laumer and Eckhardt (2012). After gathering online survey data from KakaoTalk users, an empirical analysis is conducted to verify this research model. The results of this study give insights regarding user resistance factors in the Fintech sector, and by so doing, it is expected that the important factors of user resistance could help the diffusion of new services when new mobile payment services appear in the near future.

• The Korean Journal of Physiology
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• 제3권2호
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• pp.25-31
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• 1969

Effects of graded increase of positive lung inflation upon heart rates and arterial blood pressure were observed in the anesthetized dogs to analyze the mechanical and neural regulatory factor in response to the positive inflation of the lung. The results obtained were summarized as followings: 1) When the low grade of positive lung inflation was employed under the mild to moderate anesthesia, central venous pressure was linearly increased while heart rate was decreased. After bilateral vagotomy, central venous pressure was obviously increased while heart rate was constant. 2) When the high degree of positive lung inflation was employed, changes of central venous pressure and heart rate were not significant. 3) The low grade of intrapulmonary pressure increase caused reflex tachycardia in phase 2 and overshooting in phase 4 in response to the systemic arterial blood pressure change. 4) On the other hand, the high degree of intrapulmonary pressure increase caused paradoxical bradycardia in phase 2 and lack of overshooting in phase 4 in response to the systemic arterial blood pressure change. 5) It may be noted that the experimental model employed in the present study is a useful tool to evaluate and analyze the neural and mechanical regulatory factor in response to the graded increase of the positive lung inflation.