• 기술혁신연구
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• 제7권1호
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• pp.124-150
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• 1999

This study examines the personal characteristics, organizational attitudes, technical performances, and reward preferences of R&D professionals with Ph.D. degree in large private companies in Korea. Based on survey data from 887 professionals in nine different R&D organizations, the following results are found; 1) R&D professionals with Ph.D. degree exhibit higher autonomy preference, need for achievement, self-efficacy, technical career orientation, and performance proficiency than other R&D professionals; 2) As their organizational tenure increases, performance proficiency and transfer career orientation increases but their socialized level of organizational goals and values does not change; 3) They produce more technical publications and exhibit more positive organizational attitude than other R&D professionals; 4) They are more likely to prefer job content, professional, and job security rewards. These empirical findings suggest several theoretical and practical implications for the management of R&D professionals with Ph.D. degree in the large Korean firms.

• 한국수학교육학회지시리즈B:순수및응용수학
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• 제3권1호
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• pp.19-32
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• 1996

A symplectic manifold is a pair (M, $\omega$) consisting of a smooth manifold M and a non-degenerate closed 2-form $\omega$ on M. Locally, $\omega$ = (equation omitted) and d$\omega$ = 0, when n = dimM. The condition d$\omega$ = 0 implies that locally $\omega$ = d${\alpha}$ with ${\alpha}$ = (equation omitted). There are three main sources of symplectic manifolds.(omitted)

• 한국동물위생학회지
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• 제33권2호
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• pp.157-165
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• 2010

A survey of canine heartworm infections among 83 dogs (Male 42, Female 41) of pet dogs in Ulsan area was performed from March to July 2009 using antigen test. Of 83 dogs, 6 dogs (7.2%) were infected with the Dirofilaria immitis, and 5 dogs (6%) were detected to have microfilaria in the peripheral blood. The infection according to the age of 4~5, 6~7, 7 over years were 7.4%, 12.5%, and 10.5%, Also, A survey of canine heartworm infections among 23 dogs (Male 15, Female 8) of hunting dogs in Ulsan area was performed from July 2008 using antigen test. Of 23 dogs, 11 dogs (47.8%) were infected with the D. immitis, and 6 dogs (26.1%) were detected to have microfilaria in the peripheral blood. The infection according to the age of under 1, 2-3, 4-5, 6-7 over years were 12.5%, 40%, 85.7% and 66.7%, respectively.

• 대한예방한의학회지
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• 제24권3호
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• pp.39-47
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• 2020

Objectives : The study aimed to investigate the effect of the COVID-19 epidemic on the mental health of elementary and middle school teachers, especially hwabyung, depression, and anxiety. Methods : The participants were teachers of three elementary schools and one middle school in Seoul. The survey was self-reported by online. The questionnaire included hwabyung scale, CES-D, and GAD-7. Results : The survey conducted from November 5th to December 3rd, 2020. A total number of 81 teachers replied to the survey. The hwabyung prevalence was 27.2% by hwabyung symptoms score. The mean hwabyung characteristics score was 30.10±10.55, the mean hwabyung symptoms score was 18.32±12.26. The depression prevalence was 44.4%, mean CES-D was 15.85±11.51. The anxiety prevalence was 43.2%, mean GAD-7 was 5.05±4.53. Conclusions : The survey showed that teachers had a high score of hwabyung, anxiety, and depression in the COVID-19 epidemic. The teachers were in need of help to improve their mental health.

• 한국산학기술학회논문지
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• 제16권6호
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• pp.3882-3888
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• 2015

본 연구는 국가자료인 2011년도 국민건강영양조사 자료를 이용하여 50세 이상 성인에서 비만이 PTH에 미치는 영향을 평가하고자 실시하였다. 조사 참여자수는 8,518명이었고, 이중 50세 이상 성인 3,305명을 최종분석 대상자로 하였다. 본 연구의 주요결과는 PTH 평균값에 영향을 주는 관련변수(연령, 성별, SBP, DBP, 25(OH)D)를 보정 후, 정상군 (BMI, < $23.0kg/m^2$; $66.25{\pm}0.89ng/dL$)에 비하여 과체중군(BMI, $23.0-24.9kg/m^2$; $67.83{\pm}1.07 ng/dL$), 비만군(BMI,${\geq}25.0kg/m^2$; $70.71{\pm}0.94ng/dL$)의 PTH 평균값이 유의하게 증가하였고(p=0.003), Non-abdominal obesity군($66.63{\pm}0.74ng/dL$)에 비하여 Abdominal obesity군($69.30{\pm}0.80ng/dL$)의 PTH 평균값이 증가하였다(p=0.017). 결론적으로 비만과 복부비만은 PTH의 증가와 관련이 있다.

• 문화기술의 융합
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• 제8권5호
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• pp.177-184
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• 2022

본 연구는 제8기 국민건강영양조사(2020) 자료를 이용하여 근로노인과 비 근로노인의 건강관련 삶의 질(EQ-5D)을 비교하여 노인의 건강증진을 위한 간호중재 개발의 기초자료를 제공하고자 시도하였다. 연구대상자는 65세 이상 노인으로서 근로노인 512명, 비 근로노인 862명으로 총 1,374명을 대상으로 하였다. 연구결과 건강관련 삶의 질의 5개 모든 영역에서 근로노인의 삶의 질이 비 근로노인에 비해 높은 것으로 나타났다. 특히 비 근로노인은 근로노인에 비해 자가관리가 2배(95%CI=1.32-3.14), 불안/우울은 1.6배(95%CI=1.19-2.35), 일상활동 1.6배(95%CI=1.18-2.25), 운동능력 1.5배(95%CI=1.19-1.92), 통증/불편 1.2배(95%CI=1.02-1.64)순으로 건강관련 삶의 질이 낮은 것으로 나타났다. 따라서 이를 바탕으로 노인의 독립적인 생활수준 및 정신건강을 유지 및 증진할 수 있는 프로그램 개발이 필요함을 제언한다.

• 자원환경지질
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• 제33권6호
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• pp.525-536
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• 2000

Electromagnetic and electric surveys were performed to reveal the deep structure of the Yangsan fault in the Bong-gye and Unyang areas, Kyeongnam Province, Korea. Especially, high-frequency magnetotelluric (HFMT) method of EM survey was mainly employed to study the deep subsurface configuration of Yangsan fault. HFMT survey was performed at 25 points of spacing 50 m, making 1.3 km survey line in Unyang area and 13 points of spacing 50 m, making 0.6 km survey line in Bong-gye area. Two 2-D cross-sections (Unyang and Bong-gye areas) were achieved as results. Electric survey by dipole-dipole array was performed to study the structure of shallow subsurface and compare the results with HFMT surveys. The results of HFMT and electric surveys show that Yangsan fault is a geologic boundary. It is very narrow and steep (about $80^{\circ}C$), and extends to 1~1.5 km depth.

• Journal of Nutrition and Health
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• 제46권6호
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• pp.540-551
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• 2013

Vitamin D deficiency (VDD) is becoming an epidemic and thereby a global health problem. Further, VDD adversely affects calcium metabolism and skeletal health, and is associated with increased risk of several diseases, e.g., autoimmune diseases, several types of cancers, type 2 diabetes mellitus, cardiovascular diseases, infectious diseases, asthma, psoriatic arthritis, and etc. To evaluate the prevalence of VDD in Korea, and then to evaluate the association of several factors with serum 25(OH)D level, the author analyzed the data of 14,456 individuals who were 10 years of age and over from the Fifth Korea National Health and Nutrition Examination Survey 1 & 2 (KNHANES V-1 & 2) conducted by the Korean Centers for Disease Control & Prevention. As a result, among Koreans (age $${\geq_-}$$ 10years), 65.9% of males and 77.7% of females were below optimum blood serum 25(OH)D (20 ng/mL). VDD is more severe in female than in male at all age groups. In addition, the younger generations had less 25(OH)D level than older generations in Korea. The analysis by complex sample general linear model (CSGLM) suggested that blood 25(OH)D concentration was related with gender (p < .001), residence (p = .030), occupation (p < .001), anemia (p < .001) and physical activity (p < .001). In conclusion, VDD is pandemic and it is more severe in younger generations in Korea. Further, from the results by CSGLM, serum 25(OH)D status is closely related with the life style of Koreans.

• Asian Journal of Innovation and Policy
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• 제5권2호
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• pp.208-224
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• 2016

The Korean government considers expanding the WtE share of total energy from 1% to 5% by 2020 through research and development (R&D) in waste-to-energy (WtE) technologies. This study attempts to measure the external benefits of investing in R&D in these technologies. To this end, a contingent valuation (CV) is employed. More specifically, a 2016 national survey of randomly selected 1,000 households was carried out across the nation to gauge the willingness to pay (WTP) for the investment. One-and-one-half-bounded dichotomous choice question was used in the CV survey, and the spike model was applied to dealing with zero WTP responses. The mean yearly WTP is estimated to be KRW 4,175 (USD 3.57) per household, which is statistically significant at the 1% level. Expanding the value to the entire nation translates into an investment of about KRW 79.1 billion (USD 67.6 million), which can be interpreted as the annual external benefit of the R&D investment in WtE technology.

• 정보처리학회논문지D
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• 제11D권2호
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• pp.471-478
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• 2004

본 논문에서는 대표적인 문화콘텐츠인 게임 등과 같은 프로그램, 자연어 다큐멘트 문화콘텐츠 그리고 중요한 오프라인 문화콘텐츠인 문화예술품에 대해 이를 디지털화하여 표절과 위작 여부 등을 판정하기 위한 기술적 방법론에 대한 고찰과 이를 지원하기 위한 새로운 방법론을 제안하고자 한다. 이를 위해 프로그램 소스 코드, 자연어 다큐멘트 문화콘텐츠에 대한 표절 검출 방법론과 이의 감정 시 도움을 주기 위한 툴 등에 대해 살펴보고자 한다. 끝으로 문화예술품의 표절 및 위작 감정 시 도움을 주기 위한 기술적 방법론을 작자의 드로잉 형태 분석에 의해 제안하고자 하며 실험에 의해 본 논문의 유용성을 입증하고자 한다.