• Journal of Gastric Cancer
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• 제16권2호
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• pp.63-71
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• 2016

Pylorus-preserving gastrectomy (PPG) is a function-preserving surgery for the treatment of early gastric cancer (EGC), aiming to decrease the complication rate and improve postoperative quality of life. According to the Japanese gastric cancer treatment guidelines, PPG can be performed for cT1N0M0 gastric cancer located in the middle-third of the stomach, at least 4.0 cm away from the pylorus. Although the length of the antral cuff gradually increased, from 1.5 cm during the initial use of the procedure to 3.0 cm currently, its optimal length still remains unclear. Standard procedures for the preservation of pyloric function, infra-pyloric vessels, and hepatic branch of the vagus nerve, make PPG technically more difficult and raise concerns about incomplete lymph node dissection. The short- and long-term oncological and survival outcomes of PPG were comparable to those for distal gastrectomy, but with several advantages such as a lower incidence of dumping syndrome, bile reflux, and gallstone formation, and improved nutritional status. Gastric stasis, a typical complication of PPG, can be effectively treated by balloon dilatation and stent insertion. Robot-assisted pylorus-preserving gastrectomy is feasible for EGC in the middle-third of the stomach in terms of the short-term clinical outcome. However, any benefits over laparoscopy-assisted PPG (LAPPG) from the patient's perspective have not yet been proven. An ongoing Korean multicenter randomized controlled trial (KLASS-04), which compares LAPPG and laparoscopy-assisted distal gastrectomy for EGC in the middle-third of the stomach, may provide more clear evidence about the advantages and oncologic safety of PPG.

• 한국노년학
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• 제29권3호
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• pp.917-933
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• 2009

본 연구는 새롭게 도입된 노인장기요양보험제도 체계 내에서 공적보호서비스(시설보호서비스와 재가보호서비스)를 이용하게 되는 요인과 두 서비스유형간의 선택을 결정하게 되는 요인을 밝히고자 한다. Andersen의 행동모델에 기반하여 노인장기요양서비스 이용형태를 결정하는 소인요인과 자원요인, 욕구요인의 영향을 검증하는 연구모형을 구성하였으며, 노인장기요양보험 2차 시범사업의 서비스 이용권리가 있는 요양 1~3등급의 노인 5,497명의 서비스 이용자료와 개인적 특성 자료를 활용하여 다항 로지스틱 회귀분석을 실시하였다. 주요 분석결과는 다음과 같다. 첫째, 서비스 이용의 본인부담금을 나타내는 소득수준에 따라 서비스 이용형태에 차이가 나타났다. 국민기초생활보호대상자, 일반소득계층, 차상위계층의 순으로 서비스 이용이 높았으며, 재가보호서비스에 비해 시설보호서비스의 이용이 높게 나타났다. 둘째, 군지역에 비해 대도시와 중소도시가 시설보호서비스 또는 재가보호서비스를 이용할 확률이 높으며, 특히 중소도시의 경우 재가보호서비스보다는 시설보호서비스 이용이 높은 것으로 나타났다. 셋째, 요양 1~2등급이 3등급에 비해 시설보호서비스 또는 재가보호서비스 이용이 높으나, 등급에 따른 서비스 이용 유형간 차이는 나타나지 않았다. 넷째, 일상생활수행능력(ADL), 수단적 일상생활수행능력(IADL), 인지기능과 문제행동의 기능이 나쁠수록 시설보호서비스 이용이 높으며, 재가보호보다는 시설보호를 이용하는 것으로 나타났다. 그러나 간호처치영역은 기능상태가 나쁠수록 서비스 이용이 적고, 재활영역의 기능상태는 통계적 유의미성을 나타내지 못하였다. 이와같은 연구결과를 통해 현 노인장기요양보험제도의 본인부담금의 조정과 지역별 균형적인 서비스인프라 구축의 필요성을 제기하며, 또한 요양등급판정체계의 재검증의 필요성을 제기하는 바이다.

• 한국콘텐츠학회논문지
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• 제17권10호
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• pp.30-40
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• 2017

본 연구의 목적은 중학생이 지각한 부모의 민주적 양육태도 및 교사와의 관계가 자신의 자아존중감에 영향을 미치는 과정에서 자기조절학습능력이 매개효과를 가지는 지와 이러한 관계가 장기적 효과를 가지는 지를 확인하는데 있다. 이를 위해 한국아동청소년패널(KCYPS) 중에서 중학교 1학년 패널의 1차 년도(2010년)와 3차 년도(2012) 자료를 활용하였다. 연구 결과 첫째, 학생들이 지각한 부모의 민주적 양육태도는 동일 년도에 학생들의 자아존중감을 직접적으로 뿐만 아니라, 자기조절학습능력을 매개로 간접적으로도 예측하였다. 둘째, 교사와의 친밀한 관계 인식은 자기조절학습능력을 매개로 하여 간접적으로 자아존중감을 예측하였다. 마지막으로 1학년 때의 이러한 관계 패턴은 2년 후인 3학년 때의 자아존중감을 예측하는 과정에서도 동일하게 나타났다. 본 연구는 청소년의 주요 발달과업인 자아존중감의 향상에 해당 변인들이 중요한 역할을 하고 있음을 시사한다.

• 한국해양학회지
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• 제5권2호
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• pp.41-51
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• 1970

수권(Hydrosphere)은 기권(Atmosphere)과 암권(Lithosphere)의 중간에 있으며 이에 대한 연구는 지구 물리학 분야에서 가장 중요하게 다루어 지는 것 중의 하나이다. 특히 수권의 70% 이상을 차지하고 있는 해양에서의 환경 변화를 조사하는 것은 해황의 변동을 예측하여 수산업이나 기타의 해중 시설물을 설치하는 데 중요한 자료를 제공해 주는 기초 적인 분야이다.

• 대한조선학회논문집
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• 제52권2호
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• pp.97-103
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• 2015

This paper has focused on the middle term process planning around quays based on the prefixed long-term plan of the product mixed ships. Recently, the order rate of high add-value ships in domestic shipyards has been sharply increased and the spending time at quays is accordingly on an increasing trend. For proper and practical process planning related to quays, it has to be closely connected with a long-term plan and product calendar, erection network and result of ship allocation around quays. Moreover, it is also required to include the integrated consideration of the whole process of a yard, each ship, and each team respectively. The most distinguishing feature of this study is that it would run on the ship allocation simulator and GIS framework in order not to be limited to the specific one yard and the readers can figure out the optimization formulation containing the work load leveling and a different approach from PERT/CPM. The proposed approach reflected all requirements from the department of process planning and management in a shipyard, and the analysis of the results has explained its performance of the optimization result with the examples of total 43 ships under construction from 2008 to 2013.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2010년 춘계학술발표회 논문집
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• pp.429-431
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• 2010

The hybrid geoid model should be determined by fitting the gravimetric geoid to the geometric geoid which were presented the local vertical level. Therefore, it is necessary to find firstly the optimal scheme for improving the accuracy of gravimetric geoid in order to development the high-precision hybrid geoid model. Through finding the optimal scheme for determining the each part of gravimetric geoid, the most accurate gravimetric geoid model in Korea will be developed when the EIGEN-CG03C model to degree 360, 4-band spherical FFT and RTM reduction methods were used for determining the long, middle and short-frequency part of gravimetric geoid respectively. Finally, we developed the hybrid geoid model around Korea by correcting to gravimetric geoid with the correction term. The correction term is modelled using the difference between GPS/Levelling derived geoidal heights and gravimetric geoidal heights. The stochastic model used in the calculation of correction term is the LSC technique based on second-order Markov covariance function. 503 GPS/Levelling data were used to model the correction term. The degree of LSC fitting to the final hybrid geoid model in Korea was evaluated as 0.001m ${\pm}0.054m$.

• 한국연초학회지
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• 제8권1호
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• pp.13-21
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• 1986

The fragility, which express the fineness index, increased linearly with the moisture content for various tobacco shreds and showed a high correlation to the moisture content. Then, fineness index (FIs) at reference moisture content(l2.5%) was obtained by following equation. FIs=FIm+A(12.5-Mm) A" denote the gradient of simple linear regression equation between the fineness index and moisture content. FIm; the fineness index measured at the standard moisture content(12.5%). The characteristics of fragility concerning with some kinds of tobacco raw materials, stalk position, moisture content and storaged time were investigated. The following results were obtained. 1. The moisture content range of less fragile of tobacco raw material was from 16% to 20%. whereas the rolled process sheet tobacco was from 12% to 16%. 2. The Bright yellow and the paper process sheet tobacco were less fragile than that of the other tobacco raw materials. 3. The leaves were more distant from middle stalk position, and its become more fragile. 4. Physical properties of the storaged tobacco leaves were determined as a function of each storageunction of each storage time. The long-term storaged leaves(more than 3 years) were slightly lighter weight, more fragility and lower equilbrium moisture content than thos of the mid-term storaged leaves.(less than 3 years). 5. Contents of chemical component of the storaged leaves were determined every storage time. The long-term storaged leaves were slightly lower content of nicotine and chlorine than those of mid-term storaged leaves, but contents of crude fiber, total ash and calcium were increased significantly.

• Journal of Electrical Engineering and Technology
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• 제9권3호
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• pp.782-788
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• 2014

Wind power generation has been viewed as a promising renewable energy to meet challenge of climate change. However, wind power is susceptible to climate change because previous investigation shows there are declining trends of the land surface wind speeds over middle and lower latitudes. Since long term variation trends is notably different from inter-annual random variation and could have notable impact on wind farm from planning perspective, observed meteorological data of Taiwan is investigated to find out long term variation trends of wind speed and its impact on wind power generation. It is discovered that wind speed in majority of stations in west coast of Taiwan have ascending trends while that of all investigated stations in east coast have descending trends. Since east of Taiwan is not suitable for wind power development for its higher likelihood suffering Typhoons and most of established wind farm locate in west coast of Taiwan, it is speculated that long term variation trend of wind do not have notable negative impact on wind power generation in Taiwan.

• 한국의사학회지
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• 제20권2호
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• pp.133-148
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• 2007

Yoshimasu Todo(吉益東洞) said in his book Yakucho, that Ramulus Cinamoni(桂枝) cures ascending impulsively & adversely of poison(衝逆). Here, the meaning of ascending impulsively & adversely of poison(衝逆) is not obvious. The objective of this thesis was to discover the exact meaning of ascending impulsively & adversely of poison(衝逆), through the analysis of Todo's books, and specifically the publication Yakucho(藥徵). Todo hadn't used the term ascending impulsively & adversely of poison(衝逆) from the beginning. He had used the term together with ascending adversely of poison(上逆) and ascending adversely of qi(上氣) in the early stage and had united the term into ascending impulsively & adversely of poison(衝逆) in the middle stage. From this study, it was determined that ascending impulsively & adversely of poison(衝逆) is the combined terms of ascending impulsively of poison(上衝) and ascending adversely of poison(上逆). Considering his view of illness, Todo had explained that every disease is caused by poison in the body. It was appropriate for him to use the term ascending impulsively & adversely of poison(衝逆) when he described the state of attacking and resisting in the body.

• 한국치위생학회지
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• 제19권4호
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• pp.515-524
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• 2019

Objectives: This study aimed to investigate the effects of the amount and duration of smoking on gingival symptoms in adolescents. Methods: We used the web-based survey data of youth health behaviors from 2016 conducted by the Korean Centers for Disease Control and Prevention. The subjects of the study were 67,983 middle and high school students. Data analysis was performed using the SPSS Ver 20.0 program, and complex sample multivariate logistic regression analysis was performed to analyze gingival symptoms according to short- or long-term smoking habits. Results: In subjects with short-term smoking habits, there was no significant difference in gingival symptoms according to the smoking amount. However, after adjusting for socioeconomic characteristics and oral health behaviors in subjects with long-term smoking habits, a heavy smoking amount (${\geq}0.52PY$) had a 1.25 times higher effect than a light smoking amount (<0.52 PY) on gingival symptoms. Long-term heavy smoking (${\geq}0.52PY$) and low daily tooth-brushing frequency in high school students were factors affecting gingival symptoms. Conclusions: When conducting a project on the oral health of adolescents, it is argued that specific investigations and measures should be set up regarding health behavior factors, such as the amount and duration of smoking among adolescents.