• 한국양봉학회지
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• 제33권4호
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• pp.261-268
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• 2018

Queen honey bees (Apis cerana) can be reared artificially on demand by the use of grafting technique. The technique consists of grafting young worker larvae into queen cell cups and raising in a queenless strong colony. As the age of grafted larvae for queen rearing exhibited several aspects related to quality and reproductive potential of queen, this study were conducted to investigate the influence of age of grafted larva on morphological characteristics and lifespan of queen, and the growth of colony she headed. Our results demonstrated that queens reared from young worker larvae (i.e., less than 1-day old larvae) were significantly larger in size (i.e., body weight and thorax width) than that of queens reared from 2-day old worker larvae. Moreover, queens reared from younger worker larvae initiated egg-laying earlier, stored more spermatozoa in spermatheca and had a longer lifespan compared to queens raised from older worker larvae. We also found a significant positive effect of queen grafting age on the production of worker and drone brood, adult worker population in colonies headed by queens reared from younger larvae. These findings suggested that rearing queens from brood grafted at the earliest possible age could increase the reproductive potential of queen as well as fitness of colony she head.

• 유기물자원화
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• 제14권3호
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• pp.101-109
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• 2006

쌍용 P&G 제지공장 및 유한킴벌리 제지공장에서 발생한 제지슬러지 또는 우분을 줄지렁이의 먹이로 공급하면서 줄지렁이의 섭식량, 증체율 및 먹이에 대한 배설률을 조사하였다. 제지슬러지를 먹이로 공급하였을 경우에는 줄지렁이의 생체량이 증가하였으나, 우분을 먹이로 공급하였을 때는 먹이급이 70일 후에 지렁이 개체군이 사멸하였다. 섭식한 먹이의 지렁이 생체로의 전환률은 먹이급이 84일후에 건중량 기준으로 성충, 노령 유충 및 유령 유충 순으로 P&G 제지슬러지의 경우 0.48, 0.40, 0.76%로 유령유충이 입식된 사육상에서 높았고, 유한킴벌리 제지슬러지의 경우 0.26, 0.45, 0.42%로 성충이 입식된 사육상에서 가장 낮았다. 섭식한 먹이에 대한 지렁이의 배설률은 성충, 노령 유충 및 유령 유충 순으로 P&G 제지슬러지의 경우 49.02, 54.32, 55.39%이었고, 유한킴벌리 제지슬러지의 경우 32.22, 41.86, 40.69%로 P&G 제지슬러지에 대한 배설률이 유한 킴벌리에 대한 배설률보다 높았다. 우분에 대한 배설률은 성충, 노령 유충 및 유령 유충 각각 73.73, 57.89, 76.38%로 제지슬러지보다는 높은 배설률을 나타내었다.

• 대한지역사회영양학회지
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• 제27권6호
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• pp.455-467
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• 2022

Objectives: In this study, we suggest a Korean NOVA food classification that can be applied to food consumption among Korean. Based on this suggestion, the nutritional intake of Korean adults from ultra-processed foods (UPFs) was estimated. Methods: Korean commercial food was categorized based on the NOVA food classification criteria through the Korea Food Code and expert meetings. Then, the nutrient intake status of 6,991 participants in the 2018 National Health and Nutrition Examination Survey was analyzed according to the food processing level. Then, 4,152 adult participants (age 19-65) were divided into quartiles on the basis of their intake of UPFs, and the nutrient intakes from UPFs were compared. Results: Korean NOVA Food Classification defines with priority Group I (Unprocessed/ Minimally processed foods) and Group II (Processed culinary ingredients) foods based on the food cooking or consumption. Then, Group III (Processed foods) and Group IV (UPFs) are classified according to whether the characteristics of the raw materials used are maintained or whether the food was consumed before the 1970s. Our analysis results showed that most of the calories in the diet were consumed by Group I (52.7%), followed by Group IV (29.3%). After categorization of the adult participants into four groups according to their energy consumption from UPFs, we found that the highest consumption group (Q4) was younger and had higher percentage of men than women. The comparative analysis of the consumption of ultra-processed foods by Korean adults revealed that participants of a younger age and men consumed higher energy from UPFs than older participants and women, respectively (P < 0.01). Furthermore, the larger intake of UPFs was associated with an increasing trend for a higher intake of energy, sugar, saturated fat (P for trend < 0.001), total fat (P for trend = 0.021), and sodium (P for trend = 0.005), whereas the intake of carbohydrate, protein, and dietary fiber had a decreasing trend (P for trend < 0.001). Conclusions: With the current increase in the consumption of processed and ultra-processed foods, it is important to carefully consider not only nutrient intake but also the level of food processing.

• 한국콘텐츠학회논문지
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• 제16권1호
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• pp.424-437
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• 2016

본 연구는 증강현실 기술이 적용된 학습 콘텐츠를 활용한 교육이 성인 학습자의 학업 성취, 학습 흥미, 몰입에 미치는 영향을 알아보기 위해 수행되었다. 증강현실은 학습의 효과를 향상시키기는 유용한 도구로 인정되어 왔으나, 관련 선행 연구의 대부분은 저 연령의 피험자만을 대상으로 학습 결과를 비교하는 형태로 수행되었다. 따라서 본 연구는 성인 학습자의 학습 효과 향상을 목적으로 증강현실을 적용한 결과를 분석함으로써 기존 연구의 한계를 극복하고 증강현실 기술이 지닌 교육적 효용성의 논의를 확대하고자 하였다. 본 연구의 대상은 전문 IT 교육을 이수중인 성인 80명을 선정하였으며, 이들을 두 개 집단(각 40명)으로 나누어 증강현실 콘텐츠를 활용한 교육과 기존 텍스트 형태의 교육을 각각 2주 간 실시하였다. 연구의 결과, 첫째, 학업 성취도 측면에서 증강현실 기반의 학습과 기존 교재 위주의 학습 결과는 통계적으로 유의미한 차이가 없음이 밝혀졌다. 둘째, 학습 흥미의 경우 증강현실 콘텐츠 기반의 학습 집단에서 보다 높게 나타났다. 셋째, 학습 몰입에 있어서 증강현실 콘텐츠를 활용한 집단은 기존 교재 위주의 학습 집단보다 더 높은 수준의 몰입을 보였다. 본 연구에서 얻어진 결과가 성인 학습자 대상의 실제 교육현장에 적용한 실증적 검증임을 고려할 때, 이는 증강현실 기반 교육 콘텐츠의 효용성에 대한 논의 대상을 보다 다양한 연령대로 확장했다는 점에서 의의를 찾을 수 있다.

• 보건행정학회지
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• 제18권3호
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• pp.18-40
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• 2008

Measurements of health related quality of life can be used to compare patients with specific conditions to average individuals in the general population in a similar age and gender group. However there are few data available regarding health related quality of life for the general population of Korea. Therefore, this study was conducted to examine the validity of the Korean version of EQ-5D and to measure the health related quality of life of the general adult population in a metropolitan city. The survey was cross-sectional and employed a stratified and multistage sampling design through 100 examination sites in 5 districts of UIsan. A total of 12,644 individuals from 4,112 households participated in the survey. Of these, we analyzed data from 8,068 adults who were over 19 years old and completed the EQ-5D. To examine the validity of the questionnaire, the differences in 5 dimensions and the $EQ-5D_{index}$ were analyzed with regard to demographic and socioeconomic factors such as sex, age, income, and education. In addition, visual analogue scales (VAS) were used to evaluate the overall health related quality of life issues of the respondents. The level of health related quality of life of the general adult population was then compared with the results from the third Korean National Health and Nutrition Examination Survey and other countries. There were a small number of people with problems related tomobility, self-care, and usual activity. In addition, many people complained ofpain/discomfort and anxiety/depression. The complaint rate in each dimension, VAS, and $EQ-5D_{index}$ indicated relatively better states for males, the younger group, the higher income group, and the higher education group. In addition, the level of health related quality of life of the general population of Ulsan was relatively higher than that of Koreans nationwide as well as the populations of other countries. EQ-SD provided a valid measure of the health-related quality of life of the general adult population. In addition, the results of a survey of Ulsan revealed that the quality of life of its population is better than that of the overall population of Korea and of the populations of other countries.

• 융합정보논문지
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• 제9권5호
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• pp.65-76
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• 2019

본 연구는 국민건강영양조사 제7기 2차년도(2017) 자료를 이용하여 우리나라 20세 이상 성인 여성의 폐경 여부가 유방암에 미치는 영향을 파악하기 위해 시도되었다. 연구 대상자는 3,414명이었고, 자료는 SPSS / Win 25.0 프로그램을 이용하여 복합표본 빈도분석, 복합표본 교차분석(Rao-Scott ${\chi}^2$ test), 복합표본 로지스틱 회귀분석을 실시하였다. 주요 결과는 대상자의 연령에 따라 50~59세에서 40~49세 보다 유방암이 1.7% 더 많았고, 음주 빈도가 전혀 없는 경우가 거의 매일 있는 경우 보다 1.7%가 유의하게 더 많았다. 폐경 연령은 44세 이하가 50세 이상 보다 유방암이 2.1% 유의하게 더 높았다. 폐경 여부에 따라 폐경 후가 폐경 전 보다 유방암이 1.7% 더 많았다. 연령과 음주 빈도를 동시에 보정하였을 때 대상자는 폐경 후에 비해 전에서 유방암이 0.03배 유의하게 낮았다. 이상의 결과로 44세 이하의 폐경한 젊은 여성의 유방암 관리에 많은 관심을 가져야 할 것이며, 지속적으로 증가하고 있는 유방암 유병률을 감소시키기 위한 다학제간의 노력이 필요하다.

• 한국식품영양과학회지
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• 제42권5호
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• pp.705-712
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• 2013

본 연구에서는 제4기 국민건강영양조사 중 성인 남녀를 대상으로 외식 현황과 이와 관련된 인구사회학적 특성, 영양섭취 수준, 식습관 등을 분석하였다. 본 연구의 결과를 요약하면 첫째, 남성이 여성과 비교하여 외식을 자주하는 경향을 보였고, 도시에 거주하는 젊은 성인일수록, 가구소득 및 교육 수준이 높을수록 더 자주 외식을 하는 것으로 보였다. 둘째, 외식 빈도에 따라 영양 섭취 기준 대비 영양소 섭취비율을 분석한 결과 남녀의 패턴이 유사한 경향을 보였는데, 외식을 자주 하는 사람에게서 대부분의 영양소 섭취가 더 높은 반면 탄수화물 및 조섬유의 섭취는 더 낮은 수준을 보였다. 또한 외식 빈도가 높은 그룹에서 낮은 그룹에 비해 에너지/지방 과잉 섭취자의 비율이 더 높은 경향을 보였다. 셋째, 외식 빈도에 따른 아침 결식률을 분석한 결과, 남녀 모두 외식을 자주 하는 사람일수록 아침결식률이 더 높았고, 특히 이는 여성에게서 두드러졌다. 넷째, 대상자의 한국인 식생활 지침 실천도를 분석한 결과, 나이가 많은 여성일수록 식생활 지침 실천도가 더 높은 것으로 보였고, 남녀 모두 외식을 자주 하는 사람일수록 식생활 지침 실천 점수가 더 낮은 경향을 보였다. 이를 바탕으로 구체적인 문항에 대한 실천도를 비교한 결과, 성별, 연령별로 상이한 식생활 문제점이 파악되었다. 따라서 한국인 식생활 중 외식의 비중이 꾸준히 높아지고 있는 가운데, 성인의 건강한 외식 관련 식생활 문화에 기여하기 위한 공중보건안이 마련되어야 하며, 이러한 영양교육 및 정책 마련 시 본 연구 결과에 근거하여 집단의 특성에 따라 외식 관련 식습관문제점이 차이가 있음을 고려하여야 한다.

• 대한임상독성학회지
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• 제14권2호
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• pp.129-135
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• 2016

Purpose: This study was conducted to compare demographic and characteristic differences in self-poisoned patients by age groups using a comprehensive trauma database. Methods: This study included 1,823 patients who were admitted to the emergency room following self-poisoning. Three age groups were defined: young patients (less than 19 years), adult patients (19 to 64 years) and elderly patients (65 years and old). From January 2011 to December 2015, data were obtained from in a single emergency medical center. We investigated the materials of poisoning, ingestion time, GCS, systolic blood pressure, heart rate, and outcomes of patients. Results: A total of 1,823 self-poisoned patients visited the hospital during 5 years. Among these, 130 (7.1%) were categorized as young, 1,460 (80.1%) were adults and 233 (12.8%) were elderly. The most common drug of self-poisoning substances was antipyretics (50.0%) for those in the young group, sedative drugs (45.0%) for adults, and pesticides (41.2%) for the elderly. Mortality was 2.7% in the adult group and 14.6% in the elderly group. After adjusting for all factors related to mortality, the odds ratio (OR) of mortality was 2.63 in the elderly group (95% confidence interval [CI]: 1.44-4.81). Conclusion: There were definite differences in the characteristics of three groups. The younger patients used drugs that could be easily obtained while older patients used more lethal drugs.

• Journal of Chest Surgery
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• 제49권6호
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• pp.421-426
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• 2016

Background: Median sternotomy is the standard approach for atrial septal defect (ASD) closure. However, minimally invasive cardiac surgery (MICS) has been introduced at many centers in adult/grown-up congenital heart patients. We retrospectively reviewed the results of right anterolateral thoracotomy compared with conventional median sternotomy (CMS) for ASD closure at Seoul National University Hospital. Methods: We retrospectively analyzed 60 adult patients who underwent isolated ASD closure from January 2004 to December 2013 (42 in the CMS group, 18 in the MICS group). Preoperative, operative, and postoperative data were collected and compared between the 2 groups. Results: The MICS group was younger (44.6 years vs. 32.4 years, p=0.002) and included more females (66.7% vs. 94.4%, p=0.025) than the CMS group. Operation time (188.4 minutes vs. 286.7 minutes, p<0.001), cardiopulmonary bypass time (72.7 minutes vs. 125.8 minutes, p<0.001), and aortic cross-clamp time (25.5 minutes vs. 45.6 minutes, p<0.001) were significantly longer in the MICS group. However, there were no significant differences in morbidity and mortality between groups. Only chest tube drainage in the first 24 hours (627.1 mL vs. 306.1 mL, p<0.001) exhibited a significant difference. Conclusion: MICS via right anterolateral thoracotomy is an alternative choice for ASD closure. The results demonstrated similar morbidity and mortality between groups, and favored MICS in chest tube drainage in the first 24 hours.

• 성인간호학회지
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• 제24권4호
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• pp.406-416
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• 2012

Purpose: The purposes of this secondary data analysis study were first to identify the number of Korean adults achieving goals set by the American Diabetes Association for hemoglobin A1c (HbA1c), blood pressure (BP), and low-density lipoprotein cholesterol (LDL-C), and secondly to identify the characteristics associated with lack of goals attainment. Methods: The sample was 413 Koreans with diagnosed diabetes aged thirty years or older who participated in the Fourth Korea National Health and Nutrition Examination Survey. Goals attainment for HbA1c, BP, and LDL-C were presented in percentages. Logistic regressions were used to examine associations between participants' characteristics and lack of goals attainment. Results: About 48% had HbA1c<7%, 48.2% had BP<130/80mmHg, and 34.1% had LDL-C<100mg/dL. Only 8.7% of the sample achieved all three parameters. In multivariate analysis, younger age, longer diabetes duration, insulin use, and abdominal obesity were associated with not meeting HbAlC goal. Smoking and use of antihypertensive medication were associated with BP${\geq}$130/80 mmHg. No use of lipid lowering agents was associated with LDL-C${\geq}$100 mg/dL. Conclusion: Many Koreans with diabetes were not at goals for HbA1c, BP, and LDL-C. For optimal control, appropriateness of therapy and poor lifestyle habits should be assessed periodically and managed accordingly.