• 한국경영과학회지
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• 제25권4호
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• pp.1-14
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• 2000

The methods of sensitivity analysis for linear programming can be classified in two types: sensitivity analysis using an optimal solution, and sensitivity analysis using an approximate optimal solution. As the methods of sensitivity analysis using an optimal solution, there are three sensitivity analysis methods: sensitivity analysis using an optimal basis, positive sensitivity analysis, and optimal partition sensitivity analysis. Since they may provide different characteristic regions under degeneracy, it is not easy to understand and apply the results of the three methods. In this paper, we propose a generalized sensitivity analysis that can integrate the three existing methods of sensitivity analysis. When a right-hand side or a cost coefficient is perturbed, the generalized sensitivity analysis gives different characteristic regions according to the controlling index set that denotes the set of variables allowed to have positive values in optimal solutions to the perturbed problem. We show that the three existing sensitivity analysis methods are special cases of the generalized sensitivity analysis, and present some properties of the generalized sensitivity analysis.

• 한국보육지원학회지
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• 제16권6호
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• pp.233-252
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• 2020

Objective: The purpose of this study is to verify the effect of childcare teachers' positive human relationships in childcare centers on care sensitivity to children through their work immersion. Methods: The subjects of this study were child care teachers who were conveniently sampled from Incheon City. A total of 380 surveys were distributed, and a total of 334 surveys were analyzed, Poor or incomplete questionnaires collected were excluded. The. Sobel Test and Baron & Kenny's multi-regression were used for the analysis with the SPSS 23.0 program. Results: Child care teachers' positive relationships with directors, with their fellow teachers, and with parents had an influence on teachers' care sensitivity to children. Teacher's positive relationships with their fellow teachers and with parents had an influence on teachers' work immersion, which mediated the relationships between teacher's human relationship and their care sensitivity to children. Conclusion/Implications: The positive relationships of child care teachers directly and indirectly affect their sensitivity to children through teachers' work immersion.

• 한국가족관계학회지
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• 제22권2호
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• pp.51-69
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• 2017

Objectives: The purpose of this study was to examine the associations and paths among parenting behaviors, cyber delinquency, and moral sensitivity in adolescents to reduce and prevent cyber delinquency. Method: The data was collected by a survey for 270 students from a middle school and a high school in G city. The valid 262 cases were analyzed by frequency, descriptive analysis with SPSS 18.0 and tested by structural equation model by using AMOS 18.0 program. Results: Results showed that 1) 'control' among the parenting behaviors has positive effects on the cyber delinquency in adolescents, 2) 'intimacy and rationality' among the parenting behaviors has positive impacts on the moral sensitivity, 3) it shows that moral sensitivity has negative effects on the cyber delinquency in adolescents, and 4) bootstrapping test for indirect effect of moral sensitivity was verified significantly. We founded the full mediation of moral sensitivity and the path of 'intimacy and rationality' to cyber delinquency through moral sensitivity. Conclusions: The results implied 1) provision of the parent education and program for parents and newlyweds to learn positive parenting behaviors and 2) application of moral education to develop moral sensitivity of adolescents in schools and communities.

• 한국가족관계학회지
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• 제22권4호
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• pp.223-238
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• 2018

Objectives: The purpose of this study was a) to examine the effect of positive family relationships on post-traumatic growth in cancer patients, and b) to verify the moderating effect of spiritual sensitivity. Methods: The subjects were cancer patients, both outpatients and inpatients selected from major hospitals specialized in cancer treatment using judgement sampling. A self-administered questionnaire survey was given to cancer patients, and a total of 208 cases were collected but only 201 cases were used in the final analysis due to seven unclear and inadequate questionnaires. We performed descriptive statistics to identify the prevalence for each variable, and the moderating effect was verified through multiple regression analysis. Results: The main results are as follows. First, the average post-traumatic growth of the subjects was 3.01 (0-5 points). Second, the positive family relations of the subjects were 2.58 (0-5 points) and the average of spiritual sensitivity was 2.93 (1-5 points). Third, positive family relationship of cancer patients was positively correlated to post-traumatic growth, and spiritual sensitivity was verified as a moderator to positive family relationship enhancing the post -traumatic growth. Conclusion: These findings imply the importance of post-traumatic growth in cancer patients as a key intervention point to overcome pain and frustration from cancer. We suggest to develop family therapy programs and services aimed at fostering positive family relationships and meeting the needs of spiritual sensitivity for cancer patients and their families. This study also provides ways to promote post-traumatic growth in social welfare facilities in medical institutions and religious foundations.

• Clinics in Shoulder and Elbow
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• 제4권1호
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• pp.13-16
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• 2001

Object: To determine the sensitivity, specificity, and positive and negative predictive values of an empty can test for diagnosing supraspinatus tendon tear. Methods: We reviewed 146 patients who have shoulder pain with limited active range of motion. We evaluated patients according to empty can test. Sensitivity, specificity, and positive and negative predictive values for supraspinatus test was estimated using arthroscopic evaluation. Results: A hundred and twenty-four of 127 cases with positive empty can test had supraspinatus tendon tear. Of 19 samples with negative empty can test, 15 had no supraspinatus tear. Sensitivity, specificity, and positive and negative predictive values for the empty can test were 97.6%, 83.3%, 97.6%, and 78.9%, respectively. Conclusions: Empty can test was found to have a high sensitivity and good positive predictive value in identifying the tear of rotator cuff tendon. We concluded that empty can test of the shoulder is a reliable diagnostic method which could be used for the diagnosis of rotator cuff tear.

• Journal of Preventive Medicine and Public Health
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• 제20권1호
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• pp.114-119
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• 1987

The author investigated the effect of some variables such as age, sex and the experience of past vaccination on the validity of PHA. The changing pattern of the validity with the change of PHA diagnostic criteria, and the relationship between PHA test result and RIA Ratio Unit were also studied. The results obtained were as follow; 1) No statistically significant difference was found in sensitivity, specificity and negative predictability by sex, but positive predictability was significantly higher in male than that in female. 2) Positive predictability was shown to become higher with the increase of age and nagative predictability was found to be significally different among age groups, but no statistically significant difference was found in sensitivity and specificity by age group. 3) Significantly low specificity and high positive predictability were found in past vaccined group, but no statistically significant difference was found in sensitivity and negative predictability between past vaccined group and non-vaccined group. 4) False negative cases by PHA were found to be the weak positive reactors by RIA and false positive rate of PHA was as high as 46.3 per cent. 5) Sensitivity and specificity of PHA at the diagnostic criteria of HBsAb titer 1:2 were 98.4% and 53.8% respectively, but after increasing the HBsAb titer to 1:64 as the diagnostic criteria the results were 60.0% and 95.6% respectively.

• 가정과삶의질연구
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• 제31권1호
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• pp.1-10
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• 2013

The purpose of this study was to examine the effects of teachers' responsiveness on teachers' strategies of problem behavior guidance. Teachers' responsiveness variables consisted of acceptance, sensitivity, consistency, warmth and teachers' strategies of problem behavior guidance variables consisted of positive proactive strategies, positive reactive strategies, negative reactive strategies. Subjects were 151 early childhood teachers in Seoul and Chungcheungnam-do. The collected data were analyzed using simple regression and hierarchical multiple regression. The main results of this study were as follows. Teachers' acceptance, sensitivity, consistency, warmth were positively related to teachers' positive proactive strategies and positive reactive strategies of problem behavior guidance. On the other hand, teachers' warmth was negatively related to teachers' negative reactive strategies. As results of examining relative effects of teachers' responsiveness on positive proactive strategies of problem behavior guidance, the influential variables were warmth and acceptance. The relative effects of teachers'responsiveness on positive reactive strategies of problem behavior guidance, the influential variables were sensitivity and acceptance. The relative effects of teachers' responsiveness on negative reactive strategies of problem behavior guidance, the only influential variable was warmth.

• Parasites, Hosts and Diseases
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• 제33권2호
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• pp.117-124
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• 1995

간흡충증의 진단에 흔히 쓰이는 초음파검사의 민감도와 특이도를 알아보기 위하여 1994년 3월부터 11월까지 유행지역인 형산강 유역 포항 통합시 근로자 609명을 대상으로 피내반응검사. 대변검사. 초음파검사 및 설문조사를 시행하였다. 초음파검사에서 진단적인 소견으로 간내 담관의 확장만을 인정할 경우의 민감도는 21%이었고, 담관주위 에코가 있는 경우까지 포함하면 민감도는 52%이었다. 피내반응검사의 민감도는 62%이었다. 피내반응검사 양성이면서 초음파 소견이 하나라도 있는 경우를 진단기준으로 삼으면 민감도는 46%이었다 본 조사에서는 간흡충 혹은 간흡충의 집합체에 의해 생성되는 것으로 알려진 초음파검사상 방추상이고 약하게 반향을 보이는 담관이나 담낭내의 비음영의 초점이 뚜렷하게 보이는 환자는 없었다. 초음파검사의 특이도는 간내 담관의 확장만을 진단적 소견으로 인정할 경우 95%. 담관주의 에코까지 진단적 소견에 포함하면 83%이었다. 피내반응검사의 특이도는 52%이었다. 피내반응검사 양성이면서 초음파 소견이 하나 라도 있는 경우를 진단기준으로 삼으면 특이도는 90%이었다.

• International Journal of Human Ecology
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• 제13권1호
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• pp.39-56
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• 2012

This study aims at exploring Korean mothers' beliefs on the development of emotion of their children. In specific, sensitivity and maternal reactions to their children's both negative and positive emotion expressions were explored. Further, associations among maternal sensitivity, maternal reactions and child emotion regulation were examined. A total of 100 Korean mothers whose children were between 6 and 7 years old participated in the study. In order to assess mothers' beliefs about sensitivity, vignettes in a forced-choice format were presented through individual interviews. Mothers' self reported reactions to their children's negative emotions and positive emotions and mothers' perceptions of children's emotion regulation were assessed using questionnaires. Results revealed that Korean mothers endorsed both proactive and reactive sensitivity. However, their sensitivity differed depending on the situation. Mothers tended to endorse either Emotion Focused or Problem Focused reactions to their children's negative emotions. Mothers reported that they were most likely to restrict their child positive emotional expression with explanation in supportive way followed by invalidating through reprimanding it. Mothers' reported Distress Reactions and Punitive Reactions to children's expression of negative emotion were associated with children's liability whereas Emotion-Focused Reaction and Problem-Focused Reaction were associated with children's functional emotion regulation. The results are discussed within a theoretical framework of socialization of emotions.

• 대한수의학회지
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• 제23권1호
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• pp.123-128
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• 1983

This study was conducted to evaluate the modified drug sensitivity test for the shortening of detection time and clinical application. The results obtained were summarized as follows. 1. Inhibitory zone in 6 strains of Staphylococcus and Escherichia coli tested to sensitivity teat were reached at 100% between 2 and 6 hours. 2. The sensitivity test of Staphylococcus A, B and E. coli No. 2, No. 3 to antibacterial ointment drugs were strong positive(+++), but Staphylococcus A. A. and E. coli No. 1 were mild resistant(+). 3. The sensitivity test of Staphylococcus A. B and E. coli No. 2, No. 3 to antibacterial injection drugs in 6 hours after treatment were strong positive(+++), and Staphylococcus A. A. and E. coli No. 1 were moderate positive(++). 4. This modified method was detected 86% degree of sensitive between 7 to 12 hours after treatment. 5. We think this modified method was more practical compare to other methods.