• Clinics in Shoulder and Elbow
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• 제1권1호
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• pp.40-45
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• 1998

Multidirectional instability of the shoulder joint is an unusual entity which is not yet well understood. Traditionally recommended treatment is non-operative, but recently arthroscopic treatment has been performed. This is a retrospective review of 20 patients who had multidirectional instability, who had been treated with arthroscopic capsular shift(7 cases), and arthroscopic treatment using Ho:YAG laser(l3 cases) at Department of Orthopaedic Surgery, Chungnam National University Hospital from July, 1988to February, 1997. Results of this study were as follows: 1. In five patients who were treated with arthroscopic anterior capsular shift only, all cases had redislocation of the shoulder joint. But there was no redislocation in two patients who were treated with arthroscopic anterior and posterior capsular shift. 2. ln three patients who were treated with laser-assisted capsular shift only, all cases had redislocation of the shoulder joint. But there was only one redislocation in ten patients treated with laser-assisted capsular shrinkage and capsular plication. Ho: Y AG laser has been found to be a safe and efficacious adjunct to many arthroscopic shoulder procedures. We had satisfactory results by combining a transglenoid capsular shift with laser-assisted capsular shrinkage. Arthroscopic laser-assisted capsular shrinkage and capsular plication is a one of recommendable treatment options in multidirectional instability of the shoulder joint.

• 대한지역사회영양학회지
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• 제18권1호
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• pp.55-64
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• 2013

This study was conducted to investigate the effect of nutrition education on improving dietary attitudes, food habits and Food Frequency of 32 female shift workers by administering questionnaires. Dietary nutrient consumption data were obtained from the female shift workers by using 1 day 24-hr recall. The results were as follows: Score on 'Concerns about health (p < 0.05)' was significantly higher after-training. Dietary attitude (32.3 vs. 34.9, p < 0.01) and food habits (60.2 vs. 67.1, p < 0.01) were significantly higher after the training. Scores on 'Eating a lot of food that I want to eat is more important than nutrition (p < 0.01)', 'I have a tendency to use instant foods when I am busy (p < 0.01)', 'I am interested in information on nutrition and health (p < 0.01)' were significantly higher after the training. Scores on 'I have three meals a day (p < 0.001)', 'I have breakfast regularly (p < 0.01)', 'I take vegetables other than kimchi at every meal (p < 0.01)', 'I drink milk every day (p < 0.001)', 'I eat fruits every day (p < 0.01)', and 'I apply nutrition knowledge to daily life (p < 0.001)' were significantly higher after the training. Protein (p < 0.05), fiber (p < 0.05), vitamin C (p < 0.01), and calcium (p < 0.001) intakes were significantly higher after the training. These results showed that nutrition education had improved the dietary attitudes, food habits, and nutrient intakes. Therefore, we conclude that providing more systematic and appropriate nutrition education to shift workers during their tenure of office period is likely to improve dietary attitudes, food habits, and nutrient intakes.

• 국제지역연구
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• 제18권3호
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• pp.23-46
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• 2014

효율적인 외국인직접투자유치를 위해서는 투자의 증감요인을 적기에 파악하는 것이 중요하다. 본 논문은 선진국그룹을 모집단으로 한 동태적 변이-할당분석(dynamic shift-share analysis)을 실시하여 2003-2012년 기간 중 한국으로 유입된 외국인직접투자의 증감을 세계성장효과, 산업구성효과, 경쟁력효과 등의 3개 요인으로 분해한다. 또한 분석결과를 세계를 모집단으로 한 분석결과 및 일반적인 변이-할당분석 결과와 비교한다. 2003-2012년 기간 중 대한(對韓) 외국인직접투자의 증가세는 선진국그룹의 추세보다 낮은 수준이었으며, 그 결과 산업구성효과와 경쟁력효과는 전체적으로 부(-)의 효과를 기록한 것으로 나타났다. 산업별로는 섬유 직물 의류, 화공, 전기 전자, 운송용 기계, 음식 숙박, 비즈니스서비스 산업이 양(+)의 경쟁력효과를 나타냈다. 분석기간을 2003-2007년 및 2008-2012년의 2개 기간으로 구분하면 2003-2007년 기간에는 대부분의 업종이 부의 경쟁력효과를 나타냈으나 2008-2012년 기간에는 대부분의 제조업 세부업종들이 양의 경쟁력효과를 나타냈다. 이는 한국으로 유입되는 외국인직접투자가 금융위기의 영향을 비교적 적게 받은 것을 반영한 것으로 해석된다.

• Safety and Health at Work
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• 제13권2호
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• pp.240-247
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• 2022

Background: Although insomnia and constipation are highly prevalent worldwide, studies examining a possible association between them are lacking. We examined the relationship between insomnia and constipation in shift workers who have a high prevalence of insomnia and other diseases. Methods: This study had a multicenter cross-sectional design and conducted using health examination data including self-reported questionnaires. In total, 12,879 and 4,650 shift workers were enrolled in Severance Hospital and Wonju Severance Hospital, respectively, during 2015-2017. Multivariate logistic regression models and subgroup analysis were performed in each center with the same protocol, using a common data model. Results: The mean age of the total population was 44.35 (standard deviation = 8.75); the proportion of males was 56.9%. Female sex, being underweight and non-smoker were strongly associated with an increased risk of constipation symptom (p < 0.001). Pooled odds ratios (ORs) were calculated using ORs of both centers with weights; there was a significant dose-response relationship (sub-threshold 1.76 [95% confidence interval [CI] 1.62-1.91]; moderate 2.28 [95% CI 2.01-2.60]; severe 4.15 [95% CI 3.18-5.41] in the final model, p for trend < 0.001). Subgroup analysis performed by stratifying sex and pooled ORs showed a similar trend to that of the entire group. Conclusion: We observed a strong correlation between insomnia and constipation in this population. Our findings may help in formulating guidelines and policies to improve quality of life in shift workers through the management of sleep quality and proper bowel function. This study is the first to report this relationship among people working in shifts.

• 한국노년학
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• 제29권1호
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• pp.1-20
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• 2009

본 연구의 목적은 현대화과정에서 나타나는 노인부양의 변화과정을 농촌노인의 관점에서 재구성하는 데에 있다. 이를 위해 6쌍의 노인부부와 3차례에 걸쳐 Schütze의 '생애사적-이야기식 인터뷰' 17개를 하였고, 분석도 그의 '생애사적-이야기식 인터뷰 분석' 방법에 따라 하였다. 연구결과, 본 '생애사주체들'이 경험한 노인부양은 '가족부양'이 주를 이루는데, 현대화과정을 거치면서 '이중적으로 구조전환'된 것으로 나타났다. 즉 한편으로는 '세대 간 상호부양 차원의 가족부양'이 '세대 내 자기부양 차원의 가족부양'으로 변환되는 '내적 구조전환'이, 다른 한편으로는 '가족부양의 사회화'가 이루어지는 '외적 구조전환'이 나타났다는 것이다. 또한 이러한 '이중적 구조전환' 과정에서 나타난 부양규범과 부양행위는 '괴리'를 이루고 있는 것으로 나타났으며, '이중적 구조전환'에 대한 인식은 '양가적'으로 나타나고 있음을 분석하였다. 이러한 연구결과에 근거하여 현대화이론에 대한 비판적 논의를 하였고, 노인부양을 위한 실천적 함의도 제시하였다.

• 한국콘텐츠학회논문지
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• 제17권3호
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• pp.261-273
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• 2017

본 연구의 목적은 간호사들의 공감수준을 측정하고, 공감수준이 그들의 삶의 만족도와 직무만족도에 미치는 영향을 알아보는 것이다. 공감수준, 삶의 만족도 그리고 직무만족도의 세 가지 요인들로 구성된 설문지를 부산지역 소재 병원에서 근무하는 간호사 150명에게 실시하였다. 간호사는 근무형태에 따라 교대근무 간호사와 비교대근무 간호사로 구분하여, 총 150개 중 144개의 설문지를 사용하여 IBM SPSS Statistics 21로 분석하였다. 교대근무 간호사는 공감수준이 높을수록 직무만족도가 높았고, 비교대근무 간호사는 공감수준이 높을수록 삶의 만족도가 높았다. 흥미롭게도, 공감수준은 교대근무 간호사의 직무만족도에 긍정적인 영향을 미쳤고(${\beta}=.282$, p=.006), 비교대근무 간호사에게는 삶의 만족도에 긍정적인 영향을 미쳤다(${\beta}=.252$, p=.048). 본 연구 결과, 간호사의 공감수준은 간호사의 삶의 만족도와 직무 만족도에 긍정적으로 영향을 주었다. 간호사의 공감 부족은 환자와의 갈등을 일으킨다는 사실에서 보듯이, 간호사의 직무수행을 향상시키기 위해서는 간호사의 삶의 만족도와 직무만족도에 있어 공감의 중요한 역할을 이해하려는 새로운 관점이 필요하다.

• 비교문화연구
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• 제33권
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• pp.385-406
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• 2013

This research starts based on the assumption that the changes of educational system in China which had been caused by accepting western educational system in the late Qing Dynasty and the early Republic of China are indeed considered as a paradigm shift of educational system in China, This research aims first to investigate what kinds of problems and changes Chinese educational system confronted at that time and second to examine what kinds of implications such changes and problems of paradigm shift may have today in China. In order to achieve the goals of this research, I first researched changes and characteristics of educational paradigm shift occurred in the history of China. On the basis of those findings, I tried to analyze acculturation problems of Chinese educational system for that of western countries at that time, their implications in present time Chinese educational system, and the possibility of further paradigmatic shift in present Chinese education. In this paper, I assumed three historical paradigmatic shifts in educational system in China which had big influences on the foundation of Chinese education, such as the introduction of Confucian Thoughts, the introduction of Civil Examination System in Sui Dynasty, and lastly the introduction of western educational system in the late Qing Dynasty. The last paradigmatic shift occurred by the introduction of western education system into China was very different from the previous two paradigmatic shifts in China in that it was literally initiated by the world with cultures different from those of China, and that's why it is called Spatial Collision. It was also one of the many changes China had been forced to confront unvoluntarily. It was done for many other complicated factors such as the greed of western imperialistic countries, spreading of Christianity and missionary education, domestic resistance against long feudal reigning of Qing Dynasty, and lastly the intellect's eagerness for new knowledge and new ways of thinking. What is surely regretful for the paradigmatic shift of Chinese educational system was that it had been triggered by those many heterogeneous factors, thereby leading to such a sudden, entire and complete shift of Chinese education system. In addition, it was done without a deeper and further consideration of Chinese education system with thousand years of tradition. This situation could be understood to be an impetus strong enough to encourage the advent of a new paradigm propelled by rapid economic growth of China, many problems of western education system, reconsideration of Chinese tradition, and strengthening of women power in China, etc.

• Safety and Health at Work
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• 제7권2호
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• pp.111-119
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• 2016

Background: Shift work and/or sleep quality may affect health. We investigated whether shift work and sleep quality, separately and jointly, were associated with abnormal levels of triglycerides, total cholesterol (TC), and low-and high-density lipoprotein cholesterol in 360 police officers (27.5% women). Methods: Triglycerides, TC, and high-density lipoprotein were analyzed on the Abbott Architect; low-density lipoprotein was calculated. Shift work was assessed using City of Buffalo payroll work history records. Sleep quality (good, ${\leq}5$; intermediate, 6-8; poor, ${\geq}9$) was assessed using the Pittsburgh Sleep Quality Index questionnaire. A shift work + sleep quality variable was created: day plus good sleep; day plus poor sleep; afternoon/night plus good; and poor sleep quality. Mean values of lipid biomarkers were compared across categories of the exposures using analysis of variance/analysis of covariance. Results: Shift work was not significantly associated with lipids. However, as sleep quality worsened, mean levels of triglycerides and TC gradually increased but only among female officers (age- and race-adjusted p = 0.013 and 0.030, respectively). Age significantly modified the association between sleep quality and TC. Among officers ${\geq}40$ years old, those reporting poor sleep quality had a significantly higher mean level of TC ($202.9{\pm}3.7mg/dL$) compared with those reporting good sleep quality ($190.6{\pm}4.0mg/dL$) (gender- and race-adjusted p = 0.010). Female officers who worked the day shift and also reported good sleep quality had the lowest mean level of TC compared with women in the other three categories (p = 0.014). Conclusion: Sleep quality and its combined influence with shift work may play a role in the alteration of some lipid measures.

• Journal of Korea Trade
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• 제25권4호
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• pp.146-163
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• 2021

Purpose - This paper examines China's impact on Korea's ICT exports considering the direct competition channel, the production shift channel, and the indirect demand channel at once. This paper also takes China's economic rebalancing into account and discusses whether it makes any differences in the effect of the three channels. Design/methodology - To quantify the effect of the three channels, I constructed a linear panel regression model and estimated it with various estimation methods including the system GMM. China's exports toward the same destination as Korea's exports, Korea's exports toward China, and the third countries' exports toward China respectively reflect the three channels. China's GVC indicators are included as well to evaluate the effect of further China's economic rebalancing. Since the present paper has a greater interest in the effect of China rather than the determinant of bilateral trade, a (fixed effect) panel model becomes more appropriate than the gravity model because timeinvariant variables in the gravity model, such as the distance and the language, are eliminated during the estimation process. Findings - The estimation results indicate that Chinese ICT exports are complementary to Korea's ICT exports in general. However, when markets are considered in subgroups, China's ICT exports could have a negative effect in the long run, especially for SITC75 and SITC76 markets, implying a possible competitive threat of China. The production shift effect turns significant during China's economic rebalancing in the markets for the advanced economies and the SITC76 product. China's indirect demand channel is also in effect significantly for the advanced economy and SITC75 commodities during China's economic rebalancing periods. In addition, this paper shows that China's transition toward upstream in the global value chain could have a positive impact on Korea's ICT exports, especially at the Asian market. Originality/value - The contribution of this paper is threefold. First, it focuses on the ICT industry for which Korea increasingly depends on China and China becomes a global hub of the GVC. Second, this paper quantitatively studies three channels in a model in contrast to the literature which mostly examines those channels separately and pays less attention to the GVC aspect. Third, by utilizing relatively recent data from the period of 2001-2017, this paper discusses whether China's economic rebalancing affects the three channels.

• Korean Chemical Engineering Research
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• 제49권1호
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• pp.21-27
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• 2011

메탄올 수증기 개질반응에 대한 적용가능성을 파악하기 위하여 메탄올 합성용 촉매인 ICI-M45와 수성가스 전환반응용 촉매인 MDC-3와 MDC-7을 비교 연구하였다. 또한 수성가스전환 반응에 대한 세 촉매의 비교실험도 수행하였다. 그 결과 MDC-7이 메탄올 수증기 개질반응에서 가장 높은 전화율을 보였으며, $H_2$와 $CO_2$ 생성속도 또한 높게 나타났다. 수성가스 전환반응용 촉매인 MDC-7과 메탄올 합성촉매인 ICI-M45를 이용하여 촉매 충진 방법에 따른 메탄올의 전화율에서의 변화를 살펴본 결과, MDC-7 단독보다 낮은 메탄올의 전화율을 보였다. 수성가스 전환반응에서도 DC- 7, MDC-3, 그리고 ICI-M45의 순으로 반응성이 감소하였다. 상기 두 반응에서 MDC-7이 가장 우수한 이유로는 높은 비표면적과 Cu의 분산도, 그리고 적절한 Cu와 Zn의 비율에 기인함을 확인할 수 있었다.