• 대한간호학회지
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• 제29권4호
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• pp.892-902
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• 1999

The purpose of this study was to investigate the ethical values of senior students in nursing (N＝111) and in medicine(N＝82). The data were collected through self-reported questionnaires in April, 1999. Categories for classifying used in the content analysis of the responses were : (1) human life (2) patient relationship (3) task relationship and (4) co-worker relationship. The results of the study are as follows ; 1) The ethical values of students in nursing and medicine were in the direction of utilitarian in the area of human life. The ethical values of students in nursing and medicine were in the direction of a deontological position in the area of patient relationship. The mean score for students in nursing was significantly higher than for those in medicine(P＜0.01) The ethical values of students in nursing and medicine was in the direction of utilitarian in the area of task relationship. The mean score for students in medicine was significantly lower than that of students in nursing(P＜0.01). The ethical values of students in nursing and medicine was definitely in the direction of a deontological position in co-worker. The mean score for students in nursing was significantly higher than that of students medicine (P＜0.05). 2) A positive correlation was found between the area of human life and patient relationship(P＜0.05), patient and task relationship(P＜0.01), and task and co-worker relationship(P＜0.05) for students in nursing. On the other hand, the area of human life was positively correlated with patient, task and co-worker relationship area(P＜0.05) for students in medicine. The area of patient relationship was also positively correlated with co -worker relationship for the students in medicine(P＜0.01). 3) The ethical values of students in nursing were related to demographic characteristics ; degree of participation in religion(P＜0.01)and degree of recognition of an ethical codes(P＜0.05), on the other hand, the ethical values of students in medicine showed no significant differences according to demogrephic variables.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2002년도 봄 학술발표회 논문집
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• pp.1003-1008
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• 2002

The purpose of this research was to obtain fatigue property of pavement concrete by split tension fatigue test. The specimens of pavement concrete were fabricated using the concrete at jop site. The fatigue tests of split tension were performed by 4 stress levels(90%, 80%, 70%, 60%) and 3 stress ratio(0.1, 0.3, 0.5). From this research, the S-N relationship, S-N-P relationship was derived and Weibull probability density functions was plotted using the distribution parameters.

• Bulletin of the Korean Chemical Society
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• 제23권3호
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• pp.417-422
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• 2002

Comparison studies of the Quantitative Structure Activity Relationship (QSAR) methods with new imidazo-quinolinedione derivatives were conducted using Comparative Molecular Field Analysis (CoMFA), Comparative Molecular Similarity Indices Analysis (CoMSIA), and the Hologram Quantitative Structure Activity Relationship (HQSAR). When the CoMFA crossvalidation value, q2, was 0.625, the Pearson correlation coefficient, r2, was 0.973. In CoMSIA, q2 was 0.52 and r2 was 0.979. In the HQSAR, q2 was 0.501 and r2 was 0.924. The best result was obtained using the CoMSIA method according to a comparison of the calculated values with the real in vitro cytotoxic activities against human ovarian cancer cell lines.

• 동아시아식생활학회지
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• 제22권2호
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• pp.175-189
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• 2012

The purpose of this study was to investigate the relationship between pack-years of smoking, metabolic biomarkers, and diet quality in male adults. We analyzed data from the combined 2007-2009 Korean National Health and Nutrition Examination Survey (KNHANES). The extent of smoking was quantified in pack-years (py), with 1 py equivalent to 20 cigarettes per day for 1 year. Subjects (n=1,318) were recruited and divided into two groups according to age (30~49 years age group, n=695; ${\geq}50$ years age group, n=623). In ach age group, subjects were divided into three groups according to the extent of smoking, which included non-smokers (30~49 years, n=156; ${\geq}50$ years, n=217), light smoker (30~49 years, n=269; py<16; ${\geq}50$ years, n=189, py<31), and moderate smoker (30~49 years, n=270; $py{\geq}16$; ${\geq}50$ years, n=217, $py{\geq}31$). The Nutrient Adequacy Ratio (NAR) and the number of foods (Dietary Variety Score, DVS) were analyzed by using the data from the 24-recall method. The results showed that moderate smokers were significantly more likely to drink alcohol compared with the other two groups. Triglyceride and cholesterol levels were significantly higher in smoker groups. The non-smoker group consumed significantly higher levels of vitamin C and potassium compared to the smoker groups. In the diet quality, vitamin C NAR of non-smoker group was significantly higher than those of smoker groups. In the ${\geq}50$ age group, the MAR of nonsmoker, light, and moderate smoker groups were 0.81, 0.78, and 0.78 respectively. The smoker group consumed significantly greate sugar and oils compared to the non-smoker group. Py showed a significantly positive relationship with serum triglyceride level, and a negative relationship with MAR after adjusting for potential confounding factors. In conclusion, male moderate smokers take too little vitamin C, partly due to low diet quality. Therefore, a well-planed diet must be used to replace the nutrients lost from excluded food groups in smoker.

• 대한간호학회지
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• 제50권1호
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• pp.132-146
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• 2020

Purpose: The purpose of this study was to develop a new version of Spirituality Assessment Scale (N-SAS) and verify its reliability and validity. Methods: The total of 59 preliminary items for the N-SAS were selected through a literature review, two rounds of experts' content validation, cognitive interviews, and pre-tests. Verification of its reliability and validity was divided into two phases. In Phase I, questionnaires were collected from 219 adults. Reliability was tested using Cronbach's alpha, validity with item analysis, and exploratory factor analysis. In Phase II, questionnaires developed based on the results of Phase I were collected from 225 adults. Reliability was tested using Cronbach's alpha, validity with confirmatory factor analysis, and criterion validity. Results: The final version of the N-SAS comprised two dimensions (vertical and horizontal), four domains (relationship with God; meaning of life and self-integration; self-transcendence; and relationship with others, neighborhoods, and nature), and 44 items were identified. Total Cronbach's α was .97; those of each subscale ranged from .79 to .98. N-SAS scores were positively correlated with the scores of Howden's Spiritual Assessment Scale (r=.81, p<.001). Conclusion: Findings suggest that the N-SAS can be used to measure spirituality in adults. The use of N-SAS is expected to facilitate perceiving patient's spiritual needs and providing spiritual care.

• Korean Journal of Mathematics
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• 제22권1호
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• pp.151-167
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• 2014

Let M, N be modules over a ring R and $[M,N]=Hom_R(M,N)$. The concern is study of: (1) Some fundamental properties of [M, N] when [M, N] is regular or semipotent. (2) The substructures of [M, N] such as radical, the singular and co-singular ideals, the total and others has raised new questions for research in this area. New results obtained include necessary and sufficient conditions for [M, N] to be regular or semipotent. New substructures of [M, N] are studied and its relationship with the Tot of [M, N]. In this paper we show that, the endomorphism ring of a module M is regular if and only if the module M is semi-injective (projective) and the kernel (image) of every endomorphism is a direct summand.

• 한국정밀공학회지
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• 제12권9호
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• pp.74-85
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• 1995

The purpose of this paper is to evaluate the grade of WA vitrified and resinoid bond grinding wheels by the sue of AE measuring system. When the manufactured 48 kinds of specimens were scratched by the method of OKOSHI'S grade test, the relationship between the amount of bit scratch depth of grinding wheel specimens and the character- istics of AE signals, and the relationship of AE counts and grade were considered as fololws; (1) The higher the grades are AE cumlulative event counts N and AE event count rate n, the smaller the values tend to be. But A $E_{rms}$is in reverse. (2) In the case of same grade, the smaller the grain size is, the higher the value of AE cumulative event counts N and A $E_{rms}$is results of comparison and observation. The grinding wheel with lower elasticity and with higher percentage of pore detected higher value of AE cumula- tive event counts N than with higher elasticity and lower percentage of pore. But A $E_{rms}$ is in reverse. (3) AE cumulative event counts N and bit scratch depth h have normally one to one correspondence. (4) It can be expected that quantitative evaluations of grade by using AE have been carried out by the wave observation of AE signal in line with the relationship between load speed of bit and AE cumulative event counts N & AE event count rate n.' AE event count rate n.ate n.

• Journal of Applied Biological Chemistry
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• 제66권
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• pp.258-265
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• 2023

축산용 항생제는 투여된 양의 일부만이 체내에서 사용되며 나머지는 모화합물 형태나 대사체로서 분뇨를 통하여 배출된다. 이러한 분뇨는 자원화 시설로부터 퇴액비로 생산되어 농경지에 살포됨으로써 농업환경에 유입되어 2차 오염 등을 초래하고 있다. 본 연구는 국내 가축분뇨 자원화 시설의 액비 생산단계별로 6종 축산용 항생제의 잔류 농도를 비교하고 액비 성분 질소 함량과의 상관성을 평가하기 위해 수행되었다. Buffer 및 SPE를 사용한 전처리 방법은 ppb 수준에서 63.4-106.7%의 회수율을 나타냈으며, 정량한계의 범위는 0.009-0.037 ㎍/L이었다. 공동자원화 시설 생산 액비의 생산단계별 잔류 항생제 농도와 규격함량 N 성분 함량과의 상관성 평가를 분석한 결과 액비화 과정 중 부숙 기간이 경과함에 따라 N 성분 및 항생제 잔류 농도가 감소하는 경향을 보여 주었다. 액비 원료, 중기 및 제품 중 SMZ의 평균 잔류 항생제는 40.85, 26.17, 3.54 ㎍/L이었으며 CTC의 경우 2.32에서 1.25 ㎍/L 수준으로 감소하였다. 다른 4종 항생제 역시 생산단계별로 잔류 농도가 감소하는 경향을 보여주었으며 액비 규격성분 N은 생산단계별 함량이 0.21에서 0.096%로 감소하였다. 액비 생산단계별 잔류 항생제 농도와 규격 성분 N 함량과의 상관성 평가는 항생제 저감화 지표 설정의 기초자료로 활용 가능할 것으로 판단된다.

• 약학회지
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• 제58권1호
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• pp.53-57
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• 2014

In recent, the abuse of newly-emerging psychoactive drugs, ('designer drugs') is a rapidly increasing problem in Korean society. Quantitative-structure activity relationship (QSAR) is an alternative method to predict bioactivities of new abused compounds. In this study, cathinone-related new designer drugs, 4-methylbuphedrone and 4-methoxy-N,N-dimethylcathinone were tested for prediction of the bioactivity with QSAR model. The bioactivity of 4-methylbuphedrone and 4-methoxy-N,N-dimethylcathinone was similar to those of methylone. These results suggest that the prediction with QSAR model may provide scientific evidences for regulatory decision.

• 한국산학기술학회논문지
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• 제12권6호
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• pp.2535-2542
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• 2011

본 논문에서는 해당 실무자들의 홈쇼핑 TV MD의 역할에 따른 제품선택 주관성을 진단하고, 기능적인 측면 에서 세부적인 유형적 효과요인들을 짚어봄으로써 향후 개선과 방향성을 알아보고자 한다. 분석한 결과, 이 논문에서는 홈쇼핑 TV MD의 역할에 따른 제품선택에 관하여 해당 실무자들의 주관적 성향을 살펴보기 위해서 Q방법론을 이용하였다. 분석된 결과, 총 4가지의 유형, 즉, 제 1유형[(N=9) : 무관계형(No-relationship Type)], 제 2유형[(N=3) : 경험지향형(Experience-oriented Type)], 제 3유형[(N=5) : 능력중심형(Ability-focus Type)], 제 4유형[(N=1) : 추진중시형(Drive-importance Type)] 등으로 분류되었다. 결과적으로, 앞으로 계량적인 실증적 연구와 소비자들의 의견을 종합한 비교와 대안책이 추가되어 진다면, 홈쇼핑 TV MD의 역할에 따른 제품선택에 관한 정책방향에 보다 심도 있는 연구 결과가 제시될 수 있을 것으로 예상된다. 또한, 이러한 연구의 한계를 보완하는 후속연구가 지속적으로 진행되어지기를 기대한다.