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지역별 항만 경쟁력 분석 - 컨테이너 정기선사의 항만 기항 패턴을 중심으로 - (An Analysis of Port Competitiveness by the Region - Based on Port Calling Patterns of the Ocean Container Liners -)

  • 김태원;곽규석;남기찬
    • 한국항해항만학회지
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    • 제30권10호
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    • pp.809-817
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    • 2006
  • 항만과 해운은 해상 물류에 있어 노드와 링크로서의 역할을 하고 있는 중요한 매체들이다. 현재까지의 해운 항만환경 변화를 살펴보면, 해운환경과 항만환경은 서로 연결되어 함께 변화하고 있음을 알 수 있다. 최근 해운 항만 환경의 급속적인 변화 역시 상호보완적인 관계를 유지하며 함께 발전해 나갈 것으로 판단된다. 특히, 선박의 대형화와 항만의 거점화 등이 이루어지고 있는 시점에서 대형 선사들의 기항지 축소전략은 지역별 거점항이 어디인가라는 문제를 제기할 수 있다. 이에 본 연구는 대형 선사들이 지역별 항만들에 기항할 때 나타나는 패턴들을 토대로 경쟁력 있는 항만이 어디인가를 검토하는데 목적이 있다. 연구를 위하여 설정한 지역 범위는 6개 지역(극동, 동남아, 북미서안, 북미동안, 서부유럽, 지중해)으로 구성하였고, 각 지역별 컨테이너화물 처리 실적을 기준으로 상위 5개항만을 분석 대상으로 하였다. 연구 결과 지역별 경쟁력 있는 항만으로는 극동 지역의 상해항, 동남아 지역의 홍콩항, 북미서안 지역의 로스엔젤레스항, 북미동안 지역의 뉴욕 뉴저지항, 서부유럽 지역의 로테르담항 그리고 지중해 지역의 지오이아 타우로항으로 나타났다.

미국이민 한국인의 스트레스 반응 양상과 생활사건과의 상관 연구 (Correlation Study between Stress Responses and Life Events as a Stressor)

  • 이소우
    • 대한간호학회지
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    • 제23권2호
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    • pp.299-315
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    • 1993
  • Koreans are one of the fastest growing immigrant groups in America. Stress responses and stressors among this large cultural minority has been rarely been studied by nursing researchers. Adjusting to life in foreign country produces a great deal of stress. Differences in culture, language, expectations and social behavior can lead to misunderstandings between health care providers and clients. These misunderstandings are not well accounted for in health assessment. This study investigated the relationship between life events or / and daily activities as a stressor and the symptoms of stress among a sample of Korean immigrants in America. The symptoms of stress scale (SOS) was used to identify stress responses and open-ended questions were used to identify life events and daily activities considered by the respondents to be stressful. A simple random sample of 283 subjects was selected from the Directory of the Korean Society of Chicago, New York, Los Angeles, Philadelphia and Seattle. Demographically, the subjects ranged in age from 20 to 69 years, and the percentage of women and men was approximately 50% each. Almost ninety percent of the subjects were highly educated, 17% owners of business, 19% white collar professionals, 14% employed in sales or as skilled /unskilled labor, 27% as housewives and students and 3% had no occupation. The total group SOS mean was 0.8042 ; the SOS men for man was 0.7371, and for women was 0.8713. The stress response of this subject group was high, -the stress response of women higher than that for men. In an earlier study(June, 1992) with another sample, the total mean SOS score was similar to this one. The main stressful life events or / and daily activities were, in order, economic problems (N=97), interpersonal problems (N=68), children care problems (N=258), health problems (N=49), communication problems (N=42), family problems (N=38), worry about future career (N=36), and religious problems (N=25). There was a significant difference in the SOS means between the group that expressed life events or / and daily activities to be stressful and the group that did not. Interpersonal relationships and economic and family problems were stressors for those who complained about peripheral manifestations. cardiopulmonary symptoms, central-neurological symptoms, gastrointestinal symptoms, muscle ten-sion, habitual patterns, depression, anxiety, emotional irritability and cognitive disorganization. In summary, interpersonal relationships and economic and family problems influenced stress response manifestations. Income, the number of people in the family, the year of immigration. the level of education, and marital status were related to physiological and psychosocial stress responses.

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세계 주요 공항 운영 효율성 분석: DEA와 Malmquist 생산성 지수 분석을 중심으로 (An analysis of the operational efficiency of the major airports worldwide using DEA and Malmquist productivity indices)

  • 김홍섭;박정림
    • 유통과학연구
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    • 제11권8호
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    • pp.5-14
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    • 2013
  • Purpose - We live in a world of constant change and competition. Many airports have specific competitiveness goals and strategies for achieving and maintaining them. The global economic recession, financial crises, and rising oil prices have resulted in an increasingly important role for facility investment and renewal and the implementation of appropriate policies in ensuring the competitive advantage for airports. It is thus important to analyze the factors that enhance efficiency and productivity for an airport. This study aims to determine the efficiency levels of 20 major airports in East Asia, Europe, and North America. Further, this study also suggests suitable policies and strategies for their development. Research design, data, and methodology - This paper employs the DEA-CCR, DEA-BCC, and DEA-Malmquist production index analysis models to determine airport efficiency. The study uses data on the efficiency and productivity of the world's leading airports between 2006 and 2010. The input variables include the airport size, the number of runways, the size of passenger terminals, and the size of cargo terminals. The output variables include the annual number of passengers and the annual cargo volume. The study uses basic data from the 2010 World Airport Traffic Report (ACI). The world's top 20 airports (as rated by the ACI report) are investigated. The study uses the expanded DEA Model and the Super Efficiency Model to identify the most effective airports among the top 20. The Malmquist productivity index analysis is used to measure airport effectiveness. Results - This study analyzes longitudinal and cross-sectional data on the world's top 20 airports covering 2006 to 2010. A CCR analysis shows that the most efficient airports in 2010 were Gatwick Airport (LGW), Zurich Airport (ZRH), Vienna Airport (VIE), Leonardo da Vinci Fiumicino Airport (FCO), Los Angeles International Airport (LAX), Seattle-Tacoma Airport (SEA), San Francisco Airport (SFO), HongKong Airport (HKG), Beijing Capital International Airport (PEK), and Shanghai Pudong Airport (PVG). We find that changes in airport productivity are affected more by technical factors than by airport efficiency. Conclusions - Based on the study results, we offer four airport development proposals. First, a benchmark airport needs to be identified. Second, inefficiency must be reduced and high-cost factors need to be managed. Third, airport operations should be enhanced through technical innovation. Finally, scientific demand forecasting and facility preparation must become the focus of attention. This paper has some limitations. Because the Malmquist productivity index is based on the hypothesis of the, the identified production change could be over- or under-estimated. Further, as DEA estimates the relative efficiency. It also cannot generalize to include all airport conditions because the variables are limited. To measure airport productivity more accurately, other input variables and environmental variables such as financial and policy factors should be included.

외상성 intrusion 치아의 교정적 견인시기에 관한 실험적 연구 (THE ONSET OF ANKYLOSIS FOLLOWING INTRUSIVE LUXATION INJURIES)

  • 정규림
    • 대한치과교정학회지
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    • 제21권2호
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    • pp.259-272
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    • 1991
  • Orthodontic traction has been suggested as the treatment of choice for intrusive luxation injuries. Prior research has shown orthodontic forces to be ineffective in the presence of ankylosis or in cases with zero mobility following the injury. If orthodontic traction is to be effective, it must be initiated prior to the onset of ankylosis. The purpose of this study was to describe the effects of intrusive luxation at various times following the injury, and to determine the time of the onset of ankylosis, and to examine what effect immediate partial luxation has on the onset of ankylosis. Eight young mongrel dogs were utilized for this study. Intrusive luxation was produced with an axial impact using a gravity hammer and a specially designed holding device on 4 teeth (2 max. and 2 man. first premolars) in each dog. The teeth were intruded approximately 3-4mm in an axial direction. One maxillary and one mandibular premolars were partially luxated with the other two teeth being untouched. Pre and posttrauma tooth position was documented with plaster models and radiographs taken with an individualized X-ray jig. Dogs were sacrificed immediately following the injury and at 1, 2, 4, 7, 10, 14 and 21 days respectively. Tetracycline was administered as a vital bone marker 24 hours before sacrifice. Block sections of the tooth and alveolus were prepared for decalcified and non decalcified histologic sections. The effects of traumatic intrusion were analyzed by means of model casts, radiographs, tetracycline bone marking and histologic preparations. The results obtained were as follows: 1. The animal sacrificed immediately following the injury displayed alveolar fractures, torn periodontal ligaments, and areas of direct tooth-bone contact. 2. The odontoblastic layer of the pulp was disorganized as early as 24 hours after the injury. 3. Bony remodeling was noted at 4 days along with active surface resorption. 4. Ankylosis was first seen 7 days after the injury. 5. Osteogenesis in the dentin (thick tetracycline bands) was observed 7 days after the injury. 6. There was no progressive root resorption and ankylosis where the periodontal ligament has been healed. 7. The Luxated group showed significantly more root resolution and ankylosis than the Nonluxated group with increased observation periods. The results suggest that ankylosis may occur within the first week following the injury, and hence orthodontic traction should be initiated as soon after the injury as possible.

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해외 한식당 마케팅 커뮤니케이션 매체 및 한식당 이용에 대한 태도 분석 - 한식당 이용 경험 및 국가별 차이를 중심으로 - (Foreign Customers' Attitudes Towards Overseas Korean Restaurants - Focusing on Korean Restaurant Experiences and Cross-national Differences -)

  • 안지애;양일선;신서영;이해영;정유선
    • 한국식생활문화학회지
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    • 제27권6호
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    • pp.666-676
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    • 2012
  • The purpose of this study was to propose effective marketing communication strategies for overseas Korean restaurants through a multilateral comparison analysis of American, Chinese, and Japanese consumers' attitudes towards communication media and Korean restaurants. The survey was written in English, Chinese, and Japanese, with guideline for surveyors, and conducted using both online and offline methods. Samples were collected from five major cities - Los Angeles, New York, Tokyo, Beijing and Shanghai, which are the foothold for the globalization of Korean food. When it comes to attitudes towards communication media, word-of-mouth showed a high mean value, indicating it as the most useful and reliable media recognized by consumers who visited Korean restaurants. Furthermore, the necessity of recognizing the importance of visual communication in the physical environment of Korean restaurants and specialized websites, featuring restaurants and gourmet food, was observed. Consumers in all three nations chose word-of-mouth as the most useful and reliable media for learning about Korean restaurants. In addition, American consumers highly depended on signage and restaurant exteriors. Chinese consumers highly recognized the usefulness and reliability of offline media, such as newspapers, magazines, and events, while Japanese consumers considered online media, such as gourmet websites, blogs and social networks, as useful and reliable sources. A significantly positive attitude and high value was observed in all who had visited Korean restaurants. American and Japanese consumers had a significantly higher rate of intention to visit Korean restaurants in the future and to tell others about their satisfaction with Korean restaurants. Meanwhile, the average rate of prior preference for Korean restaurants (when choosing restaurants) was the lowest in all three countries. This study is useful for both the Korean government and food enterprises abroad to plan and develop marketing communication strategies properly for overseas Korean restaurants.

치카노 벽화운동 제2기(1975-1989): 자생적 공동체 벽화에서 공공미술로 (Chicano Muralism(1975-1989): From Grassroots Community Murals to a Form of Public Art)

  • 김진아
    • 미술이론과 현장
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    • 제9호
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    • pp.7-31
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    • 2010
  • In this paper, I examine the development of the second stage of Chicano muralism and compare it with the first stage of the Chicano Mural Movement that was born out of the Civil Rights Movement. I then discuss the different aspects of the first stage in relation to the birth of institutionalized public art and question how Chicano murals influenced public art and, conversely, how mainstream public art transformed some of the attitudes and practices of Chicano muralism. Chicano murals initially functioned as a political mouthpiece for Chicano's human rights and as a tool to recover the Chicano people's cultural pride and legacy. However, the murals gradually developed into public art projects supported by the city or federal governments, who regarded them as an economic way to effectively communicate with the community. In this process of institutionalization, muralists became increasingly concerned with aesthetic quality and began to work more systematically. For example, amateur artists or community participants who produced the earlier murals were transformed into mural experts. Chicano essentialism and the politically volatile themes used previously were phased out and the new murals began to incorporate diverse subjects and people, for example, native culture, Blacks, and women. This phenomenon reflected the changing emphasis on multicultural understanding. This kind of institutionalization did not always draw positive results. Inadequate funds were the primary concern over the actual subject and creation of the mural work. Artists reduced the strong political metaphors and aestheticized the mural forms. However, their work was productive as well: thorough research on wall conditions and painting techniques was conducted and new processes and designs were developed. This paper examines the murals created for the 1984 Los Angeles Olympic Games, Judy Baca's works, and the Balmy Alley Mural Environment project in San Francisco's Mission District. Works by Las Mujeres Muralistas in Mission District, in particular, show case colorful patterns and the Latin American indigenous culture, exploring new interpretations of old icons and design. They challenged the stereotypical depictions of females and presented alternative visual languages that revised the male-centered mural aesthetics and elaborated on the aesthetics of Rasquachismo.

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ST6Gal-I Predicts Postoperative Clinical Outcome for Patients with Localized Clear-cell Renal Cell Carcinoma

  • Liu, Hai-Ou;Wu, Qian;Liu, Wei-Si;Liu, Yi-Dong;Fu, Qiang;Zhang, Wei-Juan;Xu, Le;Xu, Jie-Jie
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권23호
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    • pp.10217-10223
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    • 2015
  • Hyperactivated ${\alpha}2$-6-sialylation on N-glycans due to overexpression of the Golgi enzyme ${\beta}$-galactoside: ${\alpha}2$-6-sialyltransferase (ST6Gal-I) often correlates with cancer progression, metastasis, and poor prognosis. This study was aimed to determine the association between ST6Gal-I expression and the risk of recurrence and survival of patients with localized clear-cell renal cell carcinoma (ccRCC) following surgery. We retrospectively enrolled 391 patients (265 in training cohort and 126 in validation cohort) with localized ccRCC underwent nephrectomy at a single center. Tissue microarrays were constructed for immunostaining of ST6Gal-I. Prognostic value and clinical outcomes were evaluated. High ST6Gal-I expression was associated with Fuhrman grade (p<0.001 and p=0.016, respectively) and the University of California Los-Angeles Integrated Staging System (UISS) score (p=0.004 and p=0.017, respectively) in both cohorts. Patients with high ST6Gal-I expression had significantly worse overall survival (OS) (p<0.001 and p<0.001, respectively) and recurrence free survival (RFS) (p<0.001 and p=0.002, respectively) than those with low expression in both cohorts. On multivariate analysis, ST6Gal-I expression remained associated with OS and RFS even after adjusting for the UISS score. Stratified analysis suggested that the association is more pronounced among patients with low and intermediate-risk disease defined by the UISS score. High ST6Gal-I expression is a potential independent adverse predictor of survival and recurrence in ccRCC patients, and the prognostic value is most prominent in those with low and intermediate-risk disease defined by the UISS score.

ARIMA 모델을 이용한 항공운임예측에 관한 연구 (A Study of Air Freight Forecasting Using the ARIMA Model)

  • 서상석;박종우;송광석;조승균
    • 유통과학연구
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    • 제12권2호
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    • pp.59-71
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    • 2014
  • Purpose - In recent years, many firms have attempted various approaches to cope with the continual increase of aviation transportation. The previous research into freight charge forecasting models has focused on regression analyses using a few influence factors to calculate the future price. However, these approaches have limitations that make them difficult to apply into practice: They cannot respond promptly to small price changes and their predictive power is relatively low. Therefore, the current study proposes a freight charge-forecasting model using time series data instead a regression approach. The main purposes of this study can thus be summarized as follows. First, a proper model for freight charge using the autoregressive integrated moving average (ARIMA) model, which is mainly used for time series forecast, is presented. Second, a modified ARIMA model for freight charge prediction and the standard process of determining freight charge based on the model is presented. Third, a straightforward freight charge prediction model for practitioners to apply and utilize is presented. Research design, data, and methodology - To develop a new freight charge model, this study proposes the ARIMAC(p,q) model, which applies time difference constantly to address the correlation coefficient (autocorrelation function and partial autocorrelation function) problem as it appears in the ARIMA(p,q) model and materialize an error-adjusted ARIMAC(p,q). Cargo Account Settlement Systems (CASS) data from the International Air Transport Association (IATA) are used to predict the air freight charge. In the modeling, freight charge data for 72 months (from January 2006 to December 2011) are used for the training set, and a prediction interval of 23 months (from January 2012 to November 2013) is used for the validation set. The freight charge from November 2012 to November 2013 is predicted for three routes - Los Angeles, Miami, and Vienna - and the accuracy of the prediction interval is analyzed using mean absolute percentage error (MAPE). Results - The result of the proposed model shows better accuracy of prediction because the MAPE of the error-adjusted ARIMAC model is 10% and the MAPE of ARIMAC is 11.2% for the L.A. route. For the Miami route, the proposed model also shows slightly better accuracy in that the MAPE of the error-adjusted ARIMAC model is 3.5%, while that of ARIMAC is 3.7%. However, for the Vienna route, the accuracy of ARIMAC is better because the MAPE of ARIMAC is 14.5% and the MAPE of the error-adjusted ARIMAC model is 15.7%. Conclusions - The accuracy of the error-adjusted ARIMAC model appears better when a route's freight charge variance is large, and the accuracy of ARIMA is better when the freight charge variance is small or has a trend of ascent or descent. From the results, it can be concluded that the ARIMAC model, which uses moving averages, has less predictive power for small price changes, while the error-adjusted ARIMAC model, which uses error correction, has the advantage of being able to respond to price changes quickly.

Tight-Rope®을 이용한 급성 견봉 쇄골 관절 탈구의 치료 - 예비 보고 - (Coracoclavicular Ligament Augmentation Using Tight-Rope® for Acute Acromioclavicular Joint Dislocation - Preliminary Report -)

  • 권석현;최상수;이성인;김정우;김광미
    • Clinics in Shoulder and Elbow
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    • 제16권2호
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    • pp.115-122
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    • 2013
  • 목적: 급성 견봉 쇄골 관절 탈구에서 Tight-Rope$^{(R)}$ (Arthrex)를 이용한 오구 쇄골 인대 보강술의 유용성을 알아보고자 하였다. 대상 및 방법: 2009년 10월부터 2011년 3월까지 급성 견봉 쇄골 관절 탈구 환자에 대해 Tight-Rope$^{(R)}$를 이용하여 치료한 환자 중에서 12개월 이상 추시 관찰이 가능한 30명을 대상으로 하였다. 술 후 정복 상태의 평가는 쇄골의 방사선학적 추시를 통해 분석하였으며 임상적 결과는 UCLA 점수, Constant 점수 및 VAS 통증 점수를 사용하였다. 결과: 임상적 평가에서 UCLA 점수는 22예(73%)에서 우수, 5예(17%)에서 양호, 2예(7%)에서 보통, 1예(3%)에서 불량이었으며, Constant 점수는 평균 $92.5{\pm}7.5$점이었다. 방사선학적 결과는 26예(86%)에서 해부학적 정복을 보였으며, 2예(7%)에서 중등도의 정복 소실, 2예(7%)에서 완전 재탈구를 보였으며, 이중 완전 재탈구를 보였던 2예에서 임상적 결과가 만족스럽지 않았으며 재수술을 필요로 하였다. 결론: 급성 견봉 쇄골 관절 탈구에서 Tight-Rope$^{(R)}$를 이용한 오구 쇄골 인대 보강술은 신뢰할 만한 임상적 결과를 제공하는 좋은 치료 방법이라 생각한다.

미국 거주 기간에 따른 재미한인들의 한국음식 세계화에 관한 설문조사연구 (A survey for the international spread of Korean food from the Korean residens in the U.S.)

  • 심영자;정복미;김은실;주나미
    • 한국식품조리과학회지
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    • 제16권3호
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    • pp.210-215
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    • 2000
  • 본 연구는 미국 뉴욕, 휴스턴, 로스앤젤레스에 살고 있는 재미한인 212명을 대상으로 한국음식에 대한 견해, 한국음식을 세계화시키는 일에 대한 견해를 설문 조사한 것으로 그 결과는 다음과 같다. 1. 조사대상자의 성별은 남자가 32.1%, 여자가 67.9% 이며 연령은 40대 40.6%, 50대 이상 29.7%, 3대 26.4%, 20대 3.3%를 나타냈다. 학력은 대졸이상이 73.1%로 가장 높은 비율을 차지하였으며, 대상자의 69.8%가 직업을 갖고 있었고, 미국거주기간은 5년 이상부터 20년 이상까지 고르게 분포되어 있었다. 핵가족이 84.4%였고, 카톨릭이 49.5%,기독교가 43.4%를 나타냈다. 2. 재미한인들의 한국음식에 대한 관심도는 대상자의 약 71.09% 이상 관심을 가지고 있었고, 한국음식을 자랑스럽게 생각하는 이유는 영양이 풍부하고 기름기가 적으므로가 39.34%로 가장 높게 나타났고, 다음으로 입맛에 맞으므로가 27.96%, 고유의 음식이므로가 27.01%로 각각 나타났다. 3. 한국음식의 세계화에 대한 재미한인들의 견해를 조사 분석한 결과 대상자의 약 72.65% 이상이 한국음식의 세계화에 대한 관심도가 있었고, 한국음식이 세계화가 되지 못한 이유로는 44.98%가 맛과 향이 강하여 외국인에게 맞지 않는다고 조사되었다. 그러므로 한국음식을 세계화시키는데 가장 필요한 요인은 55.66%가 세계인의 입맛에 맞는 맛의 개발과 보완으로 응답하였다. 또한 한국 음식의 세계화를 위한 개선점에서는 양념과 소스를 개발하고, 영양, 저장, 위생적인 면을 보완해야 된다는 문항에 각각 동일하게 35.12%로 나타났다. 4. 재미한인들의 한국음식에 대한 견해를 외국음식과 비교하여 알아본 결과 한국음식의 식품배합은 77.03%가 좋음 이상으로 응답하였고, 한국음식의 모양은 74.28%, 한국음식의 색은 66.98%가 좋음 이상으로 응답하였다. 5. 한인들의 견지에서 외국인이 선호하는 한국음식에 대한 조사에서 주식 류에서는 비빔밥, 떡만두국이 높은 점수를 나타내었고, 부식 류에서는 쇠 갈비찜, 불고기, 쇠갈비구이, 돼지고기구이, 빈대떡, 잡채, 배추김치, 백 김치 등이 높은 값을 보였다. 후식 류에서는 식혜, 수정과, 인삼차가 높은 값을 보여주었다. 본 연구 결과에서 볼 때, 재미한인들의 한국음식 세계화에 대한 견해가 미국거주기간에 따라 뚜렷한 경향이 나타나지는 않았지만, 재미한인들은 한국음식에 대하여 높은 관심을 가지고 있음을 알 수 있었고, 한국음식을 세계화시키는 일에도 관심도가 높음을 알 수 있었다. 본 연구를 기초자료로하여 외국인에게는 맛과 향이 다소 강하게 느껴질 수도 있는 한국음식을 그들의 입맛을 고려하여 인삼소스, 마늘소스, 생강소스, 배소스 등의 양념 소스 등을 개발하고 보완함으로서 세계인의 입맛에 맞는 음식으로 개발하기 위한 노력이 한층 필요하다고 사료된다.

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