• Journal of Nutrition and Health
• /
• v.48 no.4
• /
• pp.371-379
• /
• 2015

Purpose: This study was conducted to evaluate the factors influencing inadequate energy intake among Korean elderly. Methods: Our study included 1,869 elderly people (over 60 years old) who completed a dietary survey from the fifth Korean NHANES (2010). Factors that could affect the nutritional status of the elderly included age, family status, socio-economic factors (education, family income, livelihood security, employment), and health related factors (having chronic disease, functional status, diet therapy, depression, and suicidal thoughts). Energy and protein intake were assessed using the dietary intake data from 24hr recall method. Results: The percentage of people who consumed energy less than 75% of EEA for Koreans was 23.7% in men, 31.1% in women. The carbohydrate contribution to the total energy intake in the inadequate energy intake group was significantly higher than that in the adequate intake group (p < 0.05). Factors significantly related to inadequate energy intake after adjusting for age, family status, education, family income, employment, functional status, and suicidal thoughts were education (OR: 1.480 in men, 1.614 in women) and employment (OR: 1.751 in men, 1.464 in women), age 70 years or older in men (OR: 1.475), and living with family but without spouse in women (OR: 1.496). Conclusion: In summary, the results imply that energy intake of elderly would be affected by the status of social environment with aging and nutrition-related policy for Korean elderly should be based on the social status as well as health related conditions.

• Pediatric Gastroenterology, Hepatology & Nutrition
• /
• v.12 no.1
• /
• pp.39-45
• /
• 2009

Purpose: Preterm infants are very susceptible to malnutrition because of a lack of storage of nutrients, immature digestion and metabolism, and accompanying diseases associated with prematurity. The purpose of this study was to evaluate the effects of nutritional support by the pediatric nutritional support team (pNST) on the clinical course of preterm infants in the neonatal intensive care unit (NICU). Methods: Between July 2003 and July 2006, 48 preterm infants who were admitted to the NICU at Seoul National University Bundang Hospital were included. The subjects were divided into the following two subgroups according to the presence of NST activity; pre-NST group (n=23) and NST group (n=25). Hospital records were reviewed retrospectively. Results: Forty-eight preterm babies were included (M：F=27：21; gestational age, 25~33 weeks). A dietician, pharmacists, or the pNST participated in the prescription of total parenteral nutrition (TPN) more rapidly in the NST group (p=0.000). The fasting periods and TPN administration periods were significantly decreased in the NST group compared to the pre-NST group (p=0.017 & p=0.001, respectively). The doses of calories, protein, and lipids administered via TPN were significantly increased in the NST group compared to the pre-NST group (p=0.016, p=0.000, and p=0.000, respectively). The total period on antibiotic therapy was significantly decreased in the NST group compared to the pre-NST group (p=0.007). Conclusion: Because nutritional support by the pNST is of benefit to the clinical course of preterm infants in the NICU, the pNST should recommend to improve the nutritional status and clinical outcome of preterm infants.

• 기계와재료
• /
• v.22 no.3
• /
• pp.110-119
• /
• 2010

인공아가미기술은 수중에서 용존산소를 분리하여 호흡에 사용하는 것을 말한다. 이를 위해 아가미의 특성을 분석하고 현재까지 제시되고 있는 용존산소의 분리를 위한 메커니즘 특성을 기술하였다. 즉 압력 강하, 캐리어 용액, plastron의 관점에서 용존산소를 분리하여 수중 호흡에 사용하는 부분에 대해 소개하였다. 또한, 현재 진행 중인 용존산소 분리실험장치를 이용한 수중 용존산소의 감소특성을 제시하였다. 압력을 감소함에 따라 용존산소량이 비례하여 감소함을 알 수 있었다. 중공사막에 공급되는 유량을 증가시키면 용존산소량의 감소가 둔화되는 특성을 나타낸다. 휴대형 인공아가미기술은 물놀이와 관련된 레저활동의 안전도구로 활용이 가능하고, 스쿠버다이버, 마이크로연료전지, 인공부레, 잠수함 그리고 인공 폐 분야에 사용이 기대된다.

• 한국벤처창업학회:학술대회논문집
• /
• 2006.04a
• /
• pp.77-104
• /
• 2006

Utilizing the patent application data between 1997 and 2002, this study focuses on analysing the impact of patents on firm value. Especially we attempt to examine the difference of patents between venture firms and general firms. This paper first shows that the number of the patent applications of general firms listed on the securities market are more than those of venture firms listed on KOSDAQ. It is thought that this result is originated from facts that the size of firms of the securities market is usually bigger than the firms of KOSDAQ and that these large firms could manage R&D more efficiently. Second, this paper reports that there is no difference in the ratio of patent maintenance between venture firms and general firms. Both venture firms and non-venture firms would do their best to keep their patents after patent regisration. Third, in the regression of patent index and firm growth, we find that the excellence of patent and the number of patents per employee would have an impact on the growth of firms. Fourth, the regression of patent index and profitability shows that the excellence and the number of patents per employee might have an effect on the profitability of firms.

• Journal of Digital Convergence
• /
• v.15 no.4
• /
• pp.477-488
• /
• 2017

The purpose of this study was to investigate difference of Physical Activity and Sedentary Life according to Health and Obesity status. A total of 4,783 adults participated in this study. The subjects were divided to four group(metabolically healthy normal weight; MHNW, metabolically unhealthy normal weight; MUNW, metabolically healthy obesity; MHO, metabolically unhealthy obesity; MUO) and analyzed clinical character, physical activity, and sedentary life time. As results, Compared with MHNW, MHO was higher physical activity and sedentary time but there was no notable differences. Compared with MHNW, MUNW was higher physical activity and lower sedentary time but there was no notable differences. Compared with MUNW, MHO was lower physical activity and sedentary time but there was no notable differences. In conclusion, we suggest that MHO has high physical activity comparing nomal weight group relatively.

• The Journal of the Petrological Society of Korea
• /
• v.25 no.2
• /
• pp.143-149
• /
• 2016

Eruptive volumes of three monogenetic volcanoes (Songaksan tuff ring, Biyangdo scoria cone, and Ilchulbong tuff cone) with the youngest eruption age are calculated using the model, applied to Auckland Volcanic Field in New Zealand, to investigate the volcanic eruption scale and to evaluate volcanic hazard of Jeju Island. Calculated eruptive volumes of the volcanoes are $24,987,557m^3$, $9,652,025m^3$, and $11,911,534m^3$, respectively, and the volumes include crater infill, tuff ring (tuff cone), scoria cone, and lava flow. Volcanic explosivity indices of Songaksan tuff ring, Biyangdo scoria cone, and Ilchulbong tuff cone are estimated based on the eruptive volumes to be 3, 2, and 3 respectively, and eruption type is Strombolian to Surtseyan. It is assumed that the amount of emitted sulfur dioxide gas is $2-8{\times}10^3kt/y$ according to the correlation between volcanic explosivity index and volcanic sulfur dioxide index. Recent age dating researches reveal evidences of several volcanic activities during the last 10,000 years indicating the possible volcanic eruption in Jeju Island in the near future. Therefore, it is necessary for appropriate researches regarding volcanic eruption of the island to be accomplished. In addition, establishment of the evaluation and preparation system for volcanic hazard based on the researches is required.

• The Journal of the Korea institute of electronic communication sciences
• /
• v.17 no.3
• /
• pp.499-506
• /
• 2022

With the construction of the northern line of the East Sea in 2021, expectations for peaceful use of the Demilitarized Zone (DMZ) are rising. Accordingly, it is necessary to prepare for leisure tourism activities at nearby beaches using the Demilitarized Zone as a security ecological tourism. However, despite the increase in the amount of ultraviolet rays on the surface due to the destruction of the ozone layer, there are no guidelines for UV exposure. In this paper, the amount of ultraviolet reflection on the coast adjacent to the DMZ using remote exploration was measured and analyzed. It is hoped that the presented results will be used as basic data to prepare UV guidelines for leisure tourism activities in nearby areas.

• The Journal of Korean Association of Computer Education
• /
• v.9 no.6
• /
• pp.41-51
• /
• 2006

Educators have recognized the usefulness of the e-BBS(electronic-Bulletin Board System) as an asynchronous communication medium for collaborative learning. However, theoretical outcomes to understand the structural analysis of thc e-BBS are not adequate enough. As a consequence, we are left with inadequate supportive tools to understand complex communication phenomena and to assist teachers to guide students to educational purposes. This can cause teachers to have a laissez-faire approach using BBS as a communication medium for education due to the lack of understanding the structural and overall situation. To address this issue, this paper presents a theoretical foundation to help understand the structure of discussion activities via the e-BBS and then presents a computational model, based on the structural analysis, for the behavioral analysis of participants. The formal representation of bi-directional discussion activities is realized by devising two graphs - the reply graph and the connection graph. Various measurements and statistics for the analysis are presented in the paper. To clarify the analysis, we classify the results produced through the analysis of discussion activities and participants' behaviors.

• Journal of the Korea Convergence Society
• /
• v.10 no.2
• /
• pp.325-330
• /
• 2019

The purpose of this study was to verify the physical activity planning behavior theory model of rehabilitation center users. For this purpose, a questionnaire survey was conducted for sports athletes who visited the sports rehabilitation hospital and rehabilitation center in the metropolitan area. A total of 203 questionnaires were used for the actual analysis. The collected data were analyzed using SPSS 18.0 and AMOS 18.0. In this way, we confirmed that intention has a significant direct effect on the behavior in the application of the physical activity planning theoretical model based on the social cognitive theory of rehabilitation center participants.

• Journal of Korean Society of Environmental Engineers
• /
• v.33 no.10
• /
• pp.701-708
• /
• 2011

In this study, the emissions of GHG from general ships were calculated by Tier1 method based on the fuel consumption, and by Tier3 method based on the activities data such as power and SFOC of each engine, sailing characteristics (e.g. time and load factor, etc.) considering the ship type. In 2009, the emissions of GHG by Tier1 and Tier3 method were appeared 28.27 mega-ton $CO_{2eq}$ and 30.81 mega-ton $CO_{2eq}$. The emissions by Tier3 were slightly more than those by Tier1. We found that the values of the sailing characteristics for surveyed data are overestimated slightly. In the near future, more detailed researches for sailing characteristics considering ship types would be needed for sailing, anchoring, and berthing condition, etc.