• 한국항공운항학회지
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• 제15권4호
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• pp.53-63
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• 2007

This paper examines the safety perception of passengers on low cost carriers which has made several accidents and incidents at the early stage of their business. The concept of low cost carrier is becoming more important to airline industry in Korea. This study achieves the first selecting attribute among airline service factors on domestic flights and try to indicate that how much the passengers trust in the safety of low cost carriers. It is also sets the comparative safety awareness between low cost carriers and two full service national carriers in domestic market. The safety perception of aircraft type can be a major factor for LCC choice in Korea due to frequent accidents and incidents for last two years. More than 60% of LCC passengers have increasingly considered the safety after recent accidents. The low cost airlines' images of the passengers showed that the first image of the LCC was the fare and the second image was safety. This study indicates that most of the LCC travelers will use the international low cost airlines when LCC extend their destination to adjacent countries. For the accomplishment of the low cost carriers' competitiveness in domestic market, they have to try to get rid of bad image for safety and pay extra attention to find out better services other than the safety and develop other strategies to compete against existing full service carriers.

• 보건교육건강증진학회지
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• 제29권2호
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• pp.1-12
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• 2012

Objectives: Several practice guidelines recommended both medication and behavior modification to control hypertension. The objective of this study was to analyze ambulatory care utilization pattern and related factors. Methods: A retrospective cohort study was conducted among 45,267 new users who initiated treatment with hypertensive drugs in 2003. Korean National Health Insurance Claims Data was used to study the medical care utilization behavior and related factors after treatment initiation for up to four years. Taking prescription was considered as medical care utilization. Results: More than 20% of patients discontinued visiting physicians for prescription after initiating antihypertensive drug therapy. The average number of institutions visited by patients was about 1.3 annually. Clinic was the most frequently visited institution by patients. In GEE analysis, probability of continuous visit one institution after initiating antihypertensive drug treatment increased in patients who were women, old, have comorbidity, visited clinic or hospital mainly in previous year. Conclusions: Young hypertensive male patients who have no major comorbidity showed high possibility to discontinue medical service utilization. It is necessary to educate these targeted patients about importance of hypertension management in early stage after treatment initiation.

• 한국작물학회지
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• 제67권4호
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• pp.242-252
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• 2022

콩은 단백질, 탄수화물, 지방의 주요한 공급원으로 다양한 용도로 이용되고 있다. 최근 기후온난화가 가속되는 시점에서 콩의 파종시기를 달리 하였을 때 콩 품종별 단백질, 아미노산, 항산화물질 들의 변화를 알아보고자 본 연구를 수행하였다. 조기 파종에 따른 isoflavone의 함량은 파종시기별로 차이가 없었다. 그러나 품종별로는 속이 푸른 청자 5호, 소청자, 비린내가 없는 진양콩, 나물콩인 풍산, 소원과 같은 기능성 콩에서 isoflavone의 함량이 일반 재배콩에 비해 높음을 확인할 수 있었다. 품종별 파종시기에 따른 단백질과 아미노산의 함량변화는 파종시기에 따라 큰 차이가 없었다. 그러나 전체적으로 적기파종보다 단백질과 아미노산 함량이 낮은 경향을 나타내었다. 일부 품종을 제외하고 대부분의 품종에서 조기파종의 경우 proline의 함량이 가장 높아 조기파종에 따른 스트레스가 존재함을 확인할 수 있었다.

• Archives of Plastic Surgery
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• 제45권2호
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• pp.128-134
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• 2018

Background Non-syndromic craniosynostosis causes craniofacial asymmetry and may persist after cranioplasty. These postoperative asymmetries are primarily depressions. In some cases, patients may be subjected to pranks and harassment by their peers, affecting their psychosocial development. We propose lipoinjection enriched with adipose stem cells (ASCs) to treat the sequelae of craniosynostosis in the fronto-orbital and temporal complex in cranioplasty patients, with the goal of improving the appearance of the upper third of the face. Methods Twelve children (four boys and eight girls) between 4 and 8 years of age (mean age, 6 years) in the postoperative period after treatment for plagiocephaly, brachycephaly, and trigonocephaly were included, with a follow-up period of 1 to 18 months. Fat tissue was obtained from the lower abdomen, and ASCs were isolated using the Yoshimura technique. Lipoinjection was performed using several mini-approaches to ensure adequate distribution. Results Two different scales were used to evaluate the aesthetic outcomes. At 6 months, three plastic surgeons independent of the study classified the results using a Likert scale. The patients' parents categorized the results using a visual analog scale at 6, 9, and 18 months. R esults were favorable on both scales, as the patients' facial appearance improved and they reported increased happiness and self-esteem due to their remodeled facial appearance. Conclusions We suggest that lipoinjection enriched with ASCs is a good alternative for correcting asymmetry of the fronto-orbital and temporal contour in patients with sequelae of craniosynostosis. This treatment will help boost patients' self-esteem starting at an early age.

• Journal of Digestive Cancer Reports
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• 제8권2호
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• pp.102-108
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• 2020

배경 및 목적: 우리나라에서는 위암 검진을 수행하고 있으며, 조기위암의 비중이 증가되고 있으나, 위암 검진 지침에 따른 구체적인 효과에 대해서는 많은 보고는 없다. 이에 최근 위암 검진의 현황과 조기위암과 진행성 위암의 년도별 발생률 변화의 추이 등 여러 검진관련 자료 분석을 통한 국가 위암 검진의 효과에 대하여 알아보고자 본 연구를 진행하였다. 방법: 본 연구는 2009년부터 2015년까지 위암, 조기위암, 진행성 위암 그리고 그 외로 청구된 이력들을 조사하였다. KCD-6 코드가 2011년부터 적용되었으며, 질병청구 시 상병 코드가 KCD-6로 개정되면서 위암을 조기위암과 진행성 위암으로 코드를 세분화하였다. 국가건강검진에서 40세 이상 대상자에 대해 2년에 한 번씩 시행되는 위암 검사에 대한 효율성 평가를 위해 위암으로 등록되기 이전에 검진 경험 유, 무에 대한 분석을 진행하였으며 또한 위암 검진의 효과에 대해 성별로 구분지어 분석하였다. 결과: 2009-2015년 위암으로 등록된 환자 중 이전에 위암 검진 경험이 있었던 대상자가 전체 위암 대상자 중 74%로 검진 무경험자에 비해 월등히 높았다. 그 중 검진 이후 1년 이내에 위암으로 진단된 사람이 28.8%, 2년 이내 15.5%를 차지하였다. 암 진단 당시에 위암 진행 정도를 확인해 본 결과 검진 이후 1년 이내 발생한 경우, 조기위암은 21.1%, 진행성 위암 14.6% 로 나타났고, 검진 이후 2년 이내 조기위암은 31.5%, 진행성 위암 17.5%로 나타났다. 검진 무경험자들의 암 유형별 발생 현황을 보면 같은 기간 검진 경험자에 비해 조기위암은 15.1%, 진행성 위암은 25.3%로 진행성 위암의 비율이 높았다. 성별에 따른 분석 결과, 남자의 경우 검진을 통해 암 발생을 확인한 경우가 76% 여자의 경우 암 발생을 확인한 경우가 70.2%로 나타났다. 남녀 모두에서 검진 경험자가 검진 무경험자에 비해 조기위암으로 진단되는 비율이 높았다. 결론: 최근 위암 국가검진 자료가 포함된 이번 분석을 통하여 위암 검진의 병기 이전 효과를 확인할 수 있었다. 그러나 2년 이내 위암 검진 음성인 군에서 양성으로 진단된 환자가 상대적으로 적지 않았다. 따라서 위암 검진의 효과와 위해를 평가하고, 위암 검진의 질을 향상시키기 위한 더 많은 관련 연구가 필요하다.

• 동아시아식생활학회지
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• 제12권6호
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• pp.489-501
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• 2002

The list of monthly offering items of the Chunshin(薦新) ceremony, the service of offering the first food product of year to ancestors, shown in the Walryong(月令) in Oreaeui(五禮儀), the book written in early years of the Chosun dynasty, was studied and classified by food group. Six kinds of the cereals and grain products - barley, wheat, an early-ripening rice plant, a barnyard millet, and millet seed were offered. The meat products offered were wild geese, pheasants, swans, hares and dried-pheasants. Though not shown in e Walryong, roe deer and deer were offered from hunting trips in e winter. Eight kinds of sea-fish, six kinds of fresh-water first and six kinds of other seafood such as crab, octopus, and squid were offered. Ten kinds of vegetables: bamboo shoots, e99plants, cucumbers, etc. - were offered. Eleven kinds of tree fruits - cherries, apricots, Pears, etc., seven kinds of citrus fruits - tangerines, citrons, etc., seven kinds of nuts - chestnuts, pine-nuts, etc. and two kinds of melons - watermelons etc. - were offered. The hi인est variety in the offering items was the fruits category The remaining offering items included wine brewed from new rice. new brown seaweed, and green tea.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.171-171
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• 2022

Effect of temperature during the period of 10 days from transplanting (10 DFT) on the growth and development of rice plants was investigated by transplanting semi-adult seedlings six times from 5 April to 15 May at 10-day interval in the field conditions of 2020 and 2021, with aims to investigate the critical temperature for early transplanting of temperate rice. In the two experimental years, mean temperature for 10 DFT appeared 9.1, 10.5, 11.6, 13.8, 13.9, 16.2, 16.4, 16.7, 17.1, 17.8℃ depending on the transplanting date. Mean temperature of 9.1℃ and 10.5℃ for 10 DFT appeared in the April 5 and April 15 transplants in 2020 showed negative or no effect on the increase of rice growth and acceleration of heading date when compared to those of right after transplanting treatments in the same year. Mean temperature of 11.6℃ for 10 DFT appeared in the April 5 transplant in 2021 demonstrated greater biomass from early to heading stage but the same heading date compared to April 15 transplant, indicating that 11.6℃ for 10 DFT had a positive effect on rice growth but no effect on advanced heading. Both more biomass and advanced heading stage were observed when the mean temperature for 10 DFT was 13.8℃ or higher, compared to those of right after transplanting treatments. These findings indicate that effective 10-DFT mean temperature for rice growth exists between 10.5 and 11.6℃, and that for rice development in terms of heading stage lies between 11.6 and 13.8℃ in natural condition. Further field and indoor studies are suggested to narrow down the critical temperature for early transplanting of temperate rice, which will enable to maximize the crop period in high altitude regions with low temperature.

• 아동학회지
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• 제30권6호
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• pp.223-235
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• 2009

Elementary education in Korea has variously changed and developed during the last thirty years. Among all the progressive changes, the improvement of teaching conditions is considered to be the most fundamental one. The number of students assigned to a class or a teacher has decreased to a considerable extent. Cyber teaching-learning has been peformed at school and home, and English education has been emerged as a significant part of the Korean public education. The research issues constantly considered essential over the past three decades starting in the 1980's are those related to curricula, teaching-learning methods, training of teachers in-service, and education for upright characters. The practical and political issues should be dealt with to revise the three integrated subjects and text books into a sole integrated subject and text book, to double the credential of teachers in terms of professionalism and to decrease the number of students per teacher in Korea to the OECD level.

• 한국수산과학회지
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• 제23권6호
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• pp.425-438
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• 1990

쉘리코프 해협에서 산란하는 명태의 정확한 산란장소 및 시기를 조사하기 위하여 1981 년, 1984년, 1985년에 음향학적 조사 및 난치자어 조사를 하였다. 알라스카만의 명태는 산란하기 위하여 늦겨울 내지 초봄에 쉘리코프 해협으로 이동한다. 명태는 대륙사면으로 부터 따뜻하고 염분도가 높은 해수를 이용하여 해협 남동쪽 입구의 바닥을 타고 들어와 중앙부의 서쪽면에 있는 깊은(>200 m) 곳에 모여들고, 3월부터 산란을 한다. 최대산란은 이곳에서 3월 하순부터 4월 초순에 걸쳐 일어나고, 해협내 수괴의 성질(해수온, 염분도, 밀도 등)은 해마다 다르지만 산란시기 및 장소는 거의 변함이 없다. 이 해역은 어류의 산란장이 보육장과 가까이 있다는 지리적 이점 이외에도 해마다 이 시기에는 해수의 이동량이 최저치로 내려가고 식물플랑크톤 번식의 핵심요소인 해수의 표면 혼합층이 최소로 된다는 해양학적 현상 때문에 알라스카만 명태의 최적합 산란장이 되어왔다고 추측된다. 4월 초순 이후, 산란행위는 급격히 감소하며 산란장은 북동쪽과 남서방향으로 약간 확장됨을 보여준다.

• Journal of Preventive Medicine and Public Health
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• 제47권6호
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• pp.336-342
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• 2014

Objectives: Child mortality remains a critical problem even in developed countries due to low fertility. To plan effective interventions, investigation into the trends and causes of child mortality is necessary. Therefore, we analyzed these trends and causes of child deaths over the last 30 years in Korea. Methods: Causes of death data were obtained from a nationwide vital registration managed by the Korean Statistical Information Service. The mortality rate among all children aged between one and four years and the causes of deaths were reviewed. Data from 1983-2012 and 1993-2012 were analyzed separately because the proportion of unspecified causes of death during 1983-1992 varied substantially from that during 1993-2012. Results: The child (1-4 years) mortality rates substantially decreased during the past three decades. The trend analysis revealed that all the five major causes of death (infectious, neoplastic, neurologic, congenital, and external origins) have decreased significantly. However, the sex ratio of child mortality (boys to girls) slightly increased during the last 30 years. External causes of death remain the most frequent origin of child mortality, and the proportion of mortality due to child assault has significantly increased (from 1.02 in 1983 to 1.38 in 2012). Conclusions: In Korea, the major causes and rate of child mortality have changed and the sex ratio of child mortality has slightly increased since the early 1980s. Child mortality, especially due to preventable causes, requires public health intervention.