• Journal of Nutrition and Health
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• 제44권1호
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• pp.49-60
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• 2011

본 연구는 특별법에 의한 어린이식생활 안전지수를 개발하여 지자체별로 비교 평가하기 위한 안전지수의 영역을 구성하고 영역별로 세부지표를 도출하는 목적으로 수행되었다.식생활 안전지수 평가지표 개발을 위해 선행연구에 대한 검토 및 식생활 안전지수 평가지표 전문가 자문회의를 실시하여 평가지표를 개발하였으며, AHP 기법과 델파이 조사 기법을 활용하여 각 평가지표에 대한 가중치를 부여하였다. 연구의 결과는 다음과 같다. 어린이 식생활 안전지수 평가지표는 수차에 걸친 식품, 영양 관련 분야 전문가 회의를 거쳐 최종적으로 정책지표 3개, 전략지표 9개, 대표 평가지표 11개 및 세부 평가지표 20개를 선정하였다. 선정된 세부 평가지표에 대해 AHP 기법과 델파이 기법을 활용하여 각 세부지표별 가중치를 선정하였다. 정책지표별 가중치는 식생활 안전 0.4, 식생활 영양 0.4, 식생활 인지 실천수준 0.2이었고, 전략지표별 가중치는 식생활 안전관리 지원수준 0.12, 기호식품 안전관리수준 0.19, 단체급식 안전관리수준 0.19, 결식 및 비만관리 수준 0.13, 기호식품 영양관리수준 0.11, 단체급식 영양관리수준 0.16, 식생활 안전 및 영양제도 인지수준 0.04, 식생활 안전관리 인지 실천 수준 0.07, 식생활 영양관리 인지 실천 수준 0.09이었다.

• 근관절건강학회지
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• 제17권2호
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• pp.203-211
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• 2010

Purpose: We aimed to test the validity of the EQ-5D (Euro-Quality of Life-5 Dimension), a brief and simple instrument, in measuring health related quality of life in the patients with osteoarthritis. Methods: 183 participants attending the education programs for osteoarthritis patients at the Health Centers located in Seoul and Gyunggi province area during the periods of June to December in 2009 were interviewed with the EQ-5D and KWOMAC (Korean version of Western Ontario and McMaster Scale). The data were analysed with Spearman correlation coefficents and t-test by using of SPSS/WIN 12.0 version. Results: There was a negative correlation between knee pain, stiffness and difficulty in usual activity of sub category items of KWOMAC and EQ-5Dindex, while there was no correlation between these categories and EQ-VAS. Moreover, as a result of comparing the score of physical function measured by KWOMAC according to the severity degree of the EQ-5Dindex, the group of advanced stage having moderate and severe symptoms reported significantly higher scores of physical function than those of groups having no health problems. Conclusion: The EQ-5D is an acceptable and valid instrument for measuring health-related quality of life in patients with osteoarthritis.

• 동양고전연구
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• 제62호
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• pp.87-116
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• 2016

<>는 단국대학교 천안캠퍼스 율곡도서관 한적실 소장본(나손문고)으로 한글 필사본이다. 서지사항을 보면 선장(線裝)으로 34장(張)이며 계선이 없다. 각 면은 9행(行)으로 자수(字數)는 불정(不定)하다. 책의 크기는 $19.8{\times}19.3cm$이다. 간사지(刊寫地), 간사자(刊寫者), 간사연(刊寫年)이 미상(未詳)이다. 소설의 제목을 보면 표제에 흰종이를 붙여서 ""고 써 있는데, 나손 김동욱 선생이 직접 쓰신 듯하다. 원래 책에는 표제가 없었던 것으로 보인다. <>은 한 사람이 다 쓴 것처럼 보이지는 않는다. 그 이유는 글씨체가 여러 번 바뀌기 때문에 그렇다. 처음에는 일반 고소설의 흘림체였다가 고딕체로 바뀌고 다시 한글흘림체로 바뀐다. 이는 여러 사람이 나누어서 썼을 가능성과 한 사람이 다양한 글씨체를 썼을 가능성도 배제할 수 없다. <>은 1권 1책인데, 그 안의 내을 보면 3부분으로 나뉘어져 있다. <>, <소학>, <부모은중경>이 실려 있다. <>의 내용을 보면 선과 악을 중심으로 한 일반론과 실제 이야기, 즉 왕손, 이창연, 주회, 양춘, 왕원, 왕봉의 이야기를 나열적으로 보여주고 있다. <>은 앞의 서지에서도 밝혔듯이 선덕을 쌓은 사람이 자신의 명을 다한 후에 지부에 가서 염라대왕을 만나 목숨을 연장 받고 회생한다는 이야기이다. 주로 <감응편>을 외우라 강조하고 있는데, 이로 볼 때 <>은 저승과 연명의 유형을 가지고 있는 고소설로 <저승전>의 유형이라고 할 수 있다. <>은 인간이 어떻게 살아야 하는지를 알려주는 지침서이자 개인적 삶을 경계하는 목적으로 쓰여진 소설이라고 할 수 있다.

• 한국자동차공학회논문집
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• 제24권1호
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• pp.67-73
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• 2016

The application of titanium has been gradually rising because the utilizing ranges for low weight and high strength are rapidly increased by the need for improving the fuel economy in production industries such as the aviation and automotive in recent. The purpose in this study is to investigate the appropriate cutting conditions on the life of flat and round end mills by measuring the maximum cutting temperature relative to the machining time, and calculating the wear rates of cutting tool with the spindle speed and feed rate of vertical machining center as a parameter in the titanium roughing cut machining which is widely used in critical parts of aircraft, cars, etc. When the wetted roughing cut machining of titanium with a soluble cutting oil is conducted by the flat and round end mills, the maximum cutting temperatures for a variety of spindle speed and feed rate are measured at ten-minute intervals during 60 minutes by an infrared thermometer, and the wear rates of cutting tool are calculated by the weight ratios based on tool wear before and after the experiment. It is found that the maximum cutting temperature and the wear rates of cutting tool are raised as the cutting amount per tool edge is increased with the rise of feed rate, in this experimental range, and as the frictional area due to the rise of contacting friction numbers between tool and specimen is increased with the rises of cutting time and spindle speed. In addition, the increasing rate of maximum cutting temperature in the flat and round end mills are the highest for the cutting time from 50 to 60 minutes, and the wear rate of cutting tool in the flat end mill is 1.14 to 1.55 times higher than that in the round end mill for all experimental conditions.

• 대한치과기공학회지
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• 제29권1호
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• pp.59-72
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• 2007

This study executed to offer the basis for dental technology student who chanced better clinical training. This investigation conducted on 267 of seniors who have been taken clinical training to self written a questionnaire. We used and dealt a spss 12.0 program. Study results below 1. In a question about relationship, one answered "Harmonious" took largest proportion by 40.9% during training, and about the degree of satisfaction of campus life who answered :normal: were the most with 50.0% 2. In a question about clinical training place, most(50.0%) choose place less than 10 for clinical training, and more than 10 for clinical training with 29.7%. Residue statues was most of them resided own home with 78.6%. About their commuting time from home to training place, 50.0% was under 30min, 34.1% took time 30$\sim$60min. 3. In a question about clinical trainer, most (34.4%) choose as dental lab president, as each part manager with 34.1%, a senior with 7.6% and not exist to clinical trainer with 7.6%. 4. A perfect score about teaching efficiency and satisfaction of clinical practice of dental technology students was 5. The average of score about satisfaction of clinical practice was 3.25 and circumstance of clinical training got 3.50 as a highest score. the lowest score was 2.87 that is about satisfaction of clinical training period. The average of score of teaching efficiency was 3.25. 'a Role model' got 3.55 as the highest score and 'utility for student' got 3.12 as the lowest 3.12. 5. The result of T-test to see of the satisfaction according to the general character and clinic training condition between teaching efficiency is that the degree of satisfaction of clinical training showed statistical significance only in the degree of satisfaction of college life(p<0.05), teaching efficiency has a statistical significance with age and satisfaction of college life(p<0.05). 6. The relation between of teaching efficiency of clinical training and satisfaction of clinical training of dental technologic student has a statistical relation r=0.551 and a statistical meaning in significance leveler 0.01.

• 한국환경보건학회지
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• 제47권1호
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• pp.64-77
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• 2021

Objective: Biological monitoring of trace elements in human blood samples has become an important indicator of the health environment. The purpose of this study was to detect and evaluate multiple metal items in blood samples based on ICP-MS, to perform comparative evaluation with the existing analysis method, and to develop and verify a new method. Methods: 100 μL of whole blood from 80 healthy subjects was used to analyze ten metals (Sb, tAs, Cd, Pb, Mn, Hg, Mo, Ni, Se, Tl) using ICP-MS. Verification of the analysis method included calculation of linearity, accuracy, precision and detection limits. In addition, a comparative test with the conventional graphite furnace atomic absorption spectroscopy (GF-AAS) method was performed. In the case of Pb, Cd, and Hg in whole blood, cross-analysis between Pb, Cd, and Hg analysis methods was performed to confirm the difference between the existing method and the new method (ICP-MS). Results: The coefficient of determination (R2) was 0.999 or higher in seven items and 0.995 or higher in three items. The Pb result showed that Pearson's correlation coefficient was very high at 0.983, and the intraclass correlation coefficient was 0.966. The Cd result showed that Pearson's correlation coefficient was 0.917 between the existing method and the new analysis concentration value. Its intraclass correlation coefficient was 0.960, and there was no significant difference between the two groups. Hg had a low correlation at 0.687, and the intraclass correlation coefficient was 0.761, which was lower than that of Pb and Cd. The intra-day and inter-day accuracy of Pd and Cd were satisfactory, but Hg did not meet the criteria for both accuracy and precision when compared with the conventional analysis method. Conclusion: This study can be meaningful in that it proposes a more efficient and feasible analysis method by verifying a blood heavy metal concentration experiment using multiple simultaneous analyses. All samples were processed and analyzed using the new ICP-MS. It was confirmed that the agreement between the two methods was very high, with the agreement between the current and new methods being 0.769 to 0.998. This study proposes an efficient simultaneous methodology capable of analyzing multiple elements with small samples. In the future, studies of various applications and the reliability of ICP-MS analysis methods are required, and research on the verification of accurate, precise, and continuous analysis methods is required.

• Biomolecules & Therapeutics
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• 제32권3호
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• pp.349-360
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• 2024

Oxidative stress contributes to the onset of chronic diseases in various organs, including muscles. Morroniside, a type of iridoid glycoside contained in Cornus officinalis, is reported to have advantages as a natural compound that prevents various diseases. However, the question of whether this phytochemical exerts any inhibitory effect against oxidative stress in muscle cells has not been well reported. Therefore, the current study aimed to evaluate whether morroniside can protect against oxidative damage induced by hydrogen peroxide (H₂O₂) in murine C2C12 myoblasts. Our results demonstrate that morroniside pretreatment was able to inhibit cytotoxicity while suppressing H₂O₂-induced DNA damage and apoptosis. Morroniside also significantly improved the antioxidant capacity in H₂O₂-challenged C2C12 cells by blocking the production of cellular reactive oxygen species and mitochondrial superoxide and increasing glutathione production. In addition, H₂O₂-induced mitochondrial damage and endoplasmic reticulum (ER) stress were effectively attenuated by morroniside pretreatment, inhibiting cytoplasmic leakage of cytochrome c and expression of ER stress-related proteins. Furthermore, morroniside neutralized H₂O₂-mediated calcium (Ca²⁺) overload in mitochondria and mitigated the expression of calpains, cytosolic Ca²⁺-dependent proteases. Collectively, these findings demonstrate that morroniside protected against mitochondrial impairment and Ca²⁺-mediated ER stress by minimizing oxidative stress, thereby inhibiting H₂O₂-induced cytotoxicity in C2C12 myoblasts.

• 한국전자거래학회지
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• 제21권1호
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• pp.79-90
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• 2016

문제 상황에 처한 사용자가 정보기술 역량을 활용하여 언제 어디서든 문제의 해결에 필요한 정보 및 지식을 완전히 자동화된 방식으로 제공받을 수 있도록 하는 자율적 지식서비스는, 사용자의 지적 탐구욕구의 증가와 더불어 정보기술 인프라의 고도화에 따라 더욱 많은 관심을 받고 있다. 기존의 지식서비스는, 지식의 획득과 분배 과정을 모두 다루는 것이 아닌, 지식의 분배 과정에 편향되어 집중되는 문제점을 갖고 있어, 사용자에게 분배되는 지식의 품질요건에 입각한 지식의 획득이 이루어지지 못한다. 따라서 본 연구는 지식이 획득되는 단계부터 사용자에게 분배되는 단계까지 일련의 과정을 완전 자동화하는 자율적 지식서비스의 프레임워크를 제시한다. 또한 이를 구성하는 요소기술을 도출 및 명세하여, 자율적 지식서비스의 프로토타입 시스템인 ASKs(Application Suite for Knowledge Service)를 개발한다. 본 연구를 통해, 특정 기술에 국한되어 정의되는 지식서비스의 범위를 확장하여, 보다 사용자 친화적이며 현실적 적용가능성이 높은 지식서비스의 구현이 촉진될 수 있다.

• The Journal of Asian Finance, Economics and Business
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• 제7권12호
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• pp.1035-1043
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• 2020

Project manager plays a very important role in the success of any project. The primary duty of the project manager is to combine the outcomes or results of the various processes and activities of project management into a systematic project management strategy or plan for the project. In the construction industry, a lack of motivation is an urgent problem for many project managers in construction and engineering projects. Lack of motivation affects the quality and productivity of jobs, reducing profits and growth for companies, businesses, contractors or organizations that rely on human resources. The reasons for this lack of motivation are diverse ranging from salary to culture to life and working environment, among others. Through surveys and data analysis using Cronbach's Alpha reliability and EFA (Exploratory Factor Analysis), our research scaled the factors affecting work motivation of project managers in the construction industry in Vietnam. The research results identified six major groups of relevant factors including (i) salary and benefits, (ii) work environment, (iii) promotion opportunities, (iv) organizational culture, (v) interest in the job, and (vi) relationship with the organization. From there, this paper contributed useful information as well as measures for businesses, companies, contractors or organizations in the construction industry.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제32권2호
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• pp.189-195
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• 2010

Excessive oral and maxillofacial bleeding causes upper airway obstruction, bronchotracheal & gastric aspiration and hypovolemic shock. Therefore, the rapid & correct bleeding control is very important for life-saving in the medical emergency room. In spite of the bleeding control methods of the wound suture & direct pressure, the postoperative bleeding can be occurred, because of the presence of various bleeding disorders & postoperative delayed wound infections. The proper care of bleeding disorders & wound infections are very important for the control of the delayed postoperative rebleeding. In spite of these methods, active oral bleeding can be presented by the other causes of head injury. A rare but particularly dangerous sort of bleeding that may have an especial importance to the patient with severe basal skull fracture that damage large vessels and even the cavernous sinus. The occurrence of profuse nasal or oropharyngeal bleeding may arise from damage to the anterior and posterior ethmoidal vessels, but when mixed with brain tissue it is evidence of mortal damage. In this condition, rapid entire oropharyngeal packing is essential for the control of active oral bleeding. This is a case report of rapid rational bleeding control method by much amount of wet gauze packings, in a 44-years-old male patient with active oropharyngeal bleeding by basal skull fractures.