동북아 피더네트워크의 Win-win전략에 관한 연구

장우준(Woo-jun jang),전찬용(Chan-Yong jeon),김태원(Tae-Won Kim),곽규석(Kyu-Seok Kwak),남기찬(Ki-Chan Nam) 한국항해항만학회 2006 한국항해항만학회 학술대회논문집 Vol.3 No.1

최근 중국은 양산항을 개장하여 선사 유치를 위한 다양한 혜택을 제공하고, 일본은 "수퍼중추항만 육성계획“을 세워 항만의 효율성을 바탕으로 비용을 낮추려는 노력을 하고 있다. 또한 선박의 대형화에 의한 중심항만(Hub Port) 위주의 기항과 북중국의 대량 물량 발생지역에 대한 직기항 경향으로 동북아 항만간의 경쟁이 더욱더 치열해 지고 있으며 동북아 역내 피더네트워크 강화의 필요성이 제기되고 있다. 따라서, 본 연구에서는 유럽 피더네트워크 전략 사례를 바탕으로 동북아 피더시장 현황을 파악하고 동북아 피더네트워크 구조를 분석함으로써 동북아 역내 항만 및 선사간의 과당경쟁을 지양하고 서로 Win-Win할 수 있는 터미널의 전략적 활용, 선사간 제휴 확대, 항만간 협력 강화를 위한 구체적인 전략을 제시하였다. Recently, China opened Yangshan port and provides a variety of benefits for shipping companies. Japan plans to reduce logistics costs and improve efficiency through the established "super major ports" project. According to the "hub and spokes" system, the number of direct calls toward North-Chinese ports are increasing. This changing environment has negative effects on the amount of transshipment cargos in Korean ports. In order to make a hub port of a domestic port, it is necessary to develop northeast Asian feeder networks. Therefore, this paper analyzes the structure of northeast Asian feeder networks through the case study of European feeder networks strategy. Finally, we suggests the plans to reinforce feeder networks, which are strategic terminal operation, strategic alliances between shipping companies and port co-operation, for win-win strategy in the competitive northeast Asian market.

Short-term probiotic therapy alleviates small intestinal bacterial overgrowth, but does not improve intestinal permeability in chronic liver disease

Kwak, Dong Shin,Jun, Dae Won,Seo, Jae Gu,Chung, Won Seok,Park, Soon-Eung,Lee, Kang Nyeong,Khalid-Saeed, Waqar,Lee, Hang Lak,Lee, Oh Young,Yoon, Byung Chul,Choi, Ho Soon Wolters Kluwer Health | Lippincott Williams Wilkin 2014 European journal of gastroenterology & hepatology Vol.26 No.12

AIM:: Although numerous animal studies suggest that probiotic therapy has beneficial effects in various liver diseases, the evidence for beneficial effects in human liver disease is controversial. This study was carried out to investigate the efficacy of probiotic therapy in alleviating small intestinal bacterial overgrowth (SIBO) and permeability in chronic liver disease. METHODS:: Fifty-three patients with chronic liver disease were randomized to either probiotic therapy or placebo. Six bacterial species were used: Bifidobacterium bifidum, Bifidobacterium lactis, Bifidobacterium longum, Lactobacillus acidophilus, Lactobacillus rhamnosus, and Streptococcus thermophilus. After 4 weeks, changes in the composition of fecal bacteria, SIBO, intestinal permeability, and clinical symptoms were examined. RESULTS:: Three of the six probiotic species, B. lactis, L. rhamnosus, and L. acidophilus, increased in the feces of the probiotic therapy group (P<0.001), whereas there was no change in fecal microbiota in the placebo group. SIBO disappeared in many individuals of the probiotic therapy group, but none in the placebo (24 vs. 0%, P<0.05). General gastrointestinal symptoms also improved more in the probiotic group and improvement in intestinal permeability was slightly but not significantly more frequent in the probiotic arm than the placebo arm (50 vs. 31.3%, P=0.248). Numbers of lactobacilli in stool were correlated negatively with intestinal permeability (P for trend<0.05). Liver chemistry did not improve significantly in either group. CONCLUSIONS:: We conclude that short-term probiotic administration in chronic liver disease is effective in alleviating SIBO and clinical symptoms, but ineffective in improving intestinal permeability and liver function.

Effects of obesity and exercise training on mitochondrial function and apoptotic signaling in aged rat hippocampus

Jun-Won Heo,Han-Sam Cho,Jin-Hwan Yun,Hyo-Bum Kwak 한국운동재활학회 2016 한국운동재활학회 학술대회 Vol.2016 No.10

Effects of exercise training on mitochondrial dynamics and mitophagy in obese mouse skeletal muscle

Jun-Won Heo,Mi-Hyun No,Su-Zi Yoo,Chang-Ju Kim,Tae-Woon Kim,Dong-Ho Park,Ju-Hee Kang,Hyo-Bum Kwak 한국운동재활학회 2018 한국운동재활학회 학술대회 Vol.2018 No.04

A Case of Significant Endobronchial Injury due to Recurrent Iron Pill Aspiration

Kwak, Joo-Hee,Koo, Gun Woo,Chung, Sung Jun,Park, Dong Won,Kwak, Hyun Jung,Moon, Ji-Yong,Kim, Sang-Heon,Sohn, Jang Won,Yoon, Ho Joo,Shin, Dong Ho,Park, Sung Soo,Pyo, Ju Yeon,Oh, Young-Ha,Kim, Tae-Hyung The Korean Academy of Tuberculosis and Respiratory 2015 Tuberculosis and Respiratory Diseases Vol.78 No.4

Gastric mucosal damage by iron pills is often reported. However, iron pill aspiration is uncommon. Oxidation of the impacted iron pill causes bronchial mucosal damage that progresses to chronic bronchial inflammation, necrosis, endobronchial stenosis and rarely, perforation. We reported a case of a 92-year-old woman with chronic productive cough and significant left-sided atelectasis. Bronchoscopy revealed substantial luminal narrowing with exudative inflammation of the left main bronchus. Bronchial washing cytology showed necroinflammatory exudate and a small amount of brown material. Mucosal biopsy showed diffuse brown pigments indicative of ferrous pigments, crystal deposition, and marked tissue degeneration. After vigorous coughing, she expectorated dark sediments and her symptoms and radiological abnormalities improved. There are a few such reports worldwide; however, this was the first case reported in Korea. Careful observation of aspiration-prone patients and early detection of iron pill aspiration may prevent iron pill-induced bronchial injury.

Exercise training attenuates high fat diet-induced mitochondrial dysfunction and insulin resistance in the aging skeletal muscle

( Jun-won Heo ),( Mi-hyun No ),( Han-sam Cho ),( Chang-ju Kim ),( Jin-hwan Yoon ),( Dong-ho Park ),( Ju-hee Kang ),( Hyo-bum Kwak ) 대한운동사협회 2017 대한운동사협회 운동사대회자료집 Vol.2017 No.-

Effects of obesity and exercise training on mitochondrial function and insulin resistance in aging skeletal muscle

Jun-Won Heo,Mi-Hyun No,Han-Sam Cho,Tae-Woon Kim,Jin-Hwan Yoon,Dong-Ho Park,Ju-Hee Kang,Hyo-Bum Kwak 한국운동재활학회 2017 한국운동재활학회 학술대회 Vol.2017 No.09

The objectives of this study were: (1) to determine the impacts of high fat diet-induced obesity on mitochondrial function and insulin resistance in aged skeletal muscle and (2) to determine the effects of exercise training on mitochondrial dysfunction and insulin resistance induced by obesity and aging in skeletal muscle. Sprague-Dawley rats were randomly divided into four groups: 4-month young control (YC), 20-month old control (OC), old high fat diet group (OH), and old high fat diet and exercise group (OH+EX). After obesity was induced by 7 weeks of 60% high fat feeding in old groups, treadmill exercise training was performed 6 times a week for 7 weeks. Mitochondrial function (e.g., H2O2 emission, Ca2+ retention capacity) was measured in permeabilized skeletal muscle (e.g., soleus, and white gastrocnemius), and oral glucose tolerance test (OGTT) and Western immunoblot analysis were performed to determine insulin resistance. Mitochondrial H2O2 emission was increased in white gastrocnemius (type IIb muscle) of OC and OH compared with YC. However, exercise training attenuated mitochondrial H2O2 emission in OH+EX compared with OC and OH. Mitochondrial Ca2+ retention capacity was not significantly altered between groups in soleus (type I muscle). However, in white gastrocnemius, mitochondrial Ca2+ retention capacity was reduced in OC and OH compared with YC and, conversely improved in OH+EX compared with OC and OH. Insulin resistance was also increased in OC and OH compared with YC. By contrast, insulin resistance was attenuated in OH+EX compared with OC and OH. In conclusion, our data reported that high fat diet increased mitochondrial H2O2 emission, reduced mitochondrial Ca2+ retention capacity, and induced insulin resistance in aged skeletal muscle. However, exercise training reduced mitochondrial H2O2 emission, improved mitochondrial Ca2+ retention capacity, and attenuated insulin resistance in aged and obese skeletal muscle, suggesting that exercise training plays a protective role in aging and obesity (i.e., sarcopenic obesity)-induced mitochondrial dysfunction and insulin resistance in the rat skeletal muscle.

Effects of Safety Training and Leader Consideration Behaviors on Job-Related Injuries

Kwak.Won Jun 한국인적자원관리학회 2013 인적자원관리연구 Vol.20 No.1

근로자를 위한 안전교육의 중요성에 대한 관심이 많지 않다. 이에 본 연구에서는, 가정봉사원들을 위한 안전교육이 어떻게 그들의 업무관련부상에 영향을 주는지 조사하였다. 이와 더불어, 안전교육이 직속상사의 인간 중심적 배려행동과 상호작용을 통해 가정봉사원들의 업무관련부상에 미치는 영향도 함께 살펴보았다. 이 연구를 위하여 노인들을 위해 일하는 282명의 가정봉사원을 대상으로 설문조사를 실시하였고, 이를 통하여 얻은 자료에 대하여 다중회귀분석을 실시하였다. 분석 결과에 따르면, 예상했던 바와 같이 가정봉사원들이 더 많은 안전 교육을 받을수록 더 적은 부상을 직장에서 경험하는 것으로 나타났다. 또한, 상사가 더 많은 배려행동을 보였을 때에, 안전교육의 긍정적인 효과, 즉, 업무관련부상의 감소가 더욱 두드러짐을 알 수 있었다. 후행 분석에서는, 직속상사의 업무 중심적 행동은 배려행동이 가졌던 조절효과를 보이지 않았던 것으로 나타났다. 본 연구의 결과를 고려할 때, 가정봉사원들은 업무 중에 겪을 수 있는 부상을 예방하기 위해 적극적으로 안전교육을 받을 필요가 있다. 또한, 가정봉사원들의 상사도 단지 안전교육의 기회를 제공하는 것에 그치지 않고, 업무 중심적인 행동보다는 인간 중심적 행동을 보임으로써 안전교육이 더 효과적일 수 있게 도와야 할 것이다. The importance of the safety training for employees has not been paid to attention on. The present study investigated how safety training customized for home health aides would influence their job-related injuries. Then, it was further examined how the safety training would interact with their immediate supervisors’ consideration behaviors in predicting such injuries. With the sample of 282 home health aides working for senior people, it was found that, as expected, increased safety training resulted in decreased injuries on the job. Additional, it was also found that when supervisors demonstrated more consideration behaviors, home health aides under those supervisors were less likely to be involved in job-related injuries. In a post hoc analysis, supervisors’ initiative structure behaviors interacting with safety training were found not to have the same effects on home health aides’ injuries on the job. The study findings suggest that for reducing and preventing home health aides from being injured, it is necessary for their supervisors not only to provide safety training opportunities to home health aides, but also to be person-oriented rather than task-oriented.

Effects of Safety Training and Leader Consideration Behaviors on Job-Related Injuries

( Won Jun Kwak ) 한국인적자원관리학회 2013 인적자원관리연구 Vol.20 No.1

근로자를 위한 안전교육의 중요성에 대한 관심이 많지 않다. 이에 본 연구에서는, 가정봉사원들을 위한 안전교육이 어떻게 그들의 업무관련부상에 영향을 주는지 조사하였다. 이와 더불어, 안전교육이 직속상사의 인간 중심적 배려행동과 상호작용을 통해 가정봉사원들의 업무관련부상에 미치는 영향도 함께 살펴보았다. 이 연구를 위하여 노인들을 위해 일하는 282명의 가정봉사원을 대상으로 설문조사를 실시하였고, 이를 통하여 얻은 자료에 대하여 다중회귀분석을 실시하였다. 분석 결과에 따르면, 예상했던 바와 같이 가정봉사원들이 더 많은 안전 교육을 받을수록 더 적은 부상을 직장에서 경험하는 것으로 나타났다. 또한, 상사가 더 많은 배려행동을 보였을 때에, 안전교육의 긍정적인 효과, 즉, 업무관련부상의 감소가 더욱 두드러짐을 알 수 있었다. 후행 분석에서는, 직속상사의 업무 중심적 행동은 배려행동이 가졌던 조절효과를 보이지 않았던 것으로 나타났다. 본 연구의 결과를 고려할 때, 가정봉사원들은 업무 중에 겪을 수 있는 부상을 예방하기 위해 적극적으로 안전교육을 받을 필요가 있다. 또한, 가정봉사원들의 상사도 단지 안전교육의 기회를 제공하는 것에 그치지 않고, 업무 중심적인 행동보다는 인간 중심적 행동을 보임으로써 안전교육이 더 효과적일 수 있게 도와야 할 것이다. The importance of the safety training for employees has not been paid to attention on. The present study investigated how safety training customized for home health aides would influence their job-related injuries. Then, it was further examined how the safety training would interact with their immediate supervisors` consideration behaviors in predicting such injuries. With the sample of 282 home health aides working for senior people, it was found that, as expected, increased safety training resulted in decreased injuries on the job. Additional, it was also found that when supervisors demonstrated more consideration behaviors, home health aides under those supervisors were less likely to be involved in job-related injuries. In a post hoc analysis, supervisors` initiative structure behaviors interacting with safety training were found not to have the same effects on home health aides` injuries on the job. The study findings suggest that for reducing and preventing home health aides from being injured, it is necessary for their supervisors not only to provide safety training opportunities to home health aides, but also to be person-oriented rather than task-oriented.

The Candlelight Vigils in South Korea: Neoliberal Protestors with National-Democratic Discourses

( Jun Hyeok Kwak ),( Gye Won Jo ) 대한정치학회 2011 大韓政治學會報 Vol.18 No.2

이 논문의 목적은 한국의 2008년 촛불집회에서 나타난 정치행위자의 한계를 ``시민적 책임성``이라는 측면에서 비판적으로 검토하는 것이다. 미국산 쇠고기 수입반대 촛불집회에 대해서는 서로 다른 두 가지 해석이 존재한다. 하나는 이 시위가 ``다중`` 또는 ``집단지성``이라는 새로운 정치행위자의 출현을 예시하며 새로운 형태의 민주주의가 도래했음을 보여준다는 해석이다. 다른 하나는 촛불시위는 제도화될 수 없는 반정치적이고 민중주의적인 운동이라는 회의적 시각이다. 비록 두 가지 해석들은 촛불집회에서 나타난 정치행위자나 운동 형태에 대해 흥미로운 설명을 하고 있지만, 촛불집회와 같은 대중적 사회운동이 최초에 예상되었던 정치사회적 변화를 결과하지 못하고 갑자기 사라진 이유를 만족스럽게 설명하지 못하고 있다는 비판으로부터 자유롭지 못하다. 이런 전제에서, 이 논문은 그 원인을 부분적으로 한국 사회의 후기 민주주의적 특성과 신자유주의적 변화에서 찾으려고 한다. 구체적으로 두 가지 주장을 피력된다. 첫째, 촛불시위는 개인화된 정치행위자들과 한국 사회에서 오랫동안 구조화된 민족주의적·민주적 담론이 접합되어 나타난 현상으로 볼 수 있다는 것이다. 둘째, 촛불시위는 시민적 책임성 없이 드라마틱한 이슈에만 즉흥적으로 반응하는 후기 민주주의의 원자화된 개인들의 정치적 삶이 지닌 한계를 보여준다는 것이다. This paper explores the limit of a political agency as an impromptu aggregation of individuals in the context of civic responsibility. The 2008 anti-U.S. beef Candlelight Vigils in South Korea have generated two opposite interpretations: some regard the protests as the advent of the ``multitude,`` or ``collective intelligence`` that foreshadows the emergence of a new type of democracy, while others denounce them as anti-political populist movements which cannot be institutionalized. Of particular concern here is the reason why such a mass social movement disappeared abruptly without leaving any social repercussion. We argue that the volatility of the movement is in part attributed to the society`s neo-liberal changes as well as post-democratic features. We also interpret the appeal of participants to popular sovereignty as an articulation of neoliberal individualization with nationalistic-democratic discourses. The Candlelight Vigils showed the internal discrepancy of the citizen who oscillates between collective political agency only reacting to dramatic issues and the atomized neo-liberal individual without civic responsibility.