• 제목/요약/키워드: multiple regressions

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Maximizing WSQ Compression Rate by Considering Fingerprint Image Quality (지문 영상 품질을 고려한 WSQ 최대 압축)

  • Hong, Seung-Woo;Lee, Sung-Ju;Chung, Yong-Wha;Choi, Woo-Yong;Moon, Dae-Sung;Moon, Ki-Young;Jin, Chang-Long;Kim, Hak-Il
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.20 no.3
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    • pp.23-30
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    • 2010
  • Compression techniques can be applied to large-scale fingerprint systems to store or transmit fingerprint data efficiently. In this paper, we investigate the effects of FBI WSQ fingerprint image compression on the performance of a fingerprint verification system using multiple linear regressions. We propose a maximum compression using fingerprint image quality score. Based on the experiments, we can confirm that the proposed approach can compress the fingerprint images up to 3 times more than the fixed compression ratio without significant degradation of the verification accuracy.

Critical Thinking Disposition, Medication Error Risk Level of High-alert Medication and Medication Safety Competency among Intensive Care Unit Nurses (중환자실 간호사의 비판적 사고성향, 고위험약물 투약오류 위험수준 및 투약안전역량)

  • Lee, Yoon Hee;Lee, Youngjin;Ahn, Jeong-Ah;Kim, Hee Jun
    • Journal of Korean Critical Care Nursing
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    • v.15 no.2
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    • pp.1-13
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    • 2022
  • Purpose : The study aimed to identify relationship among intensive care unit (ICU) nurses' critical thinking disposition, medication error risk level of high-alert medication, and medication safety competency, as well as the factors affecting medication safety competency. Methods : The participants were 266 ICU nurses of one higher-tier general hospital and one general hospital in Province. The data were collected using structured self-administered questionnaire from August 10 to August 31, 2021. Measurements included the critical thinking disposition questionnaire, nurses's knowledge of high-alert medication questionnaire, the medication safety competency scale. Data were analyzed using hierarchical multiple regressions using SPSS/WIN 28.0. Results : In the multiple regression analysis, the medication safety competence has a statistically significant correlation with the working department, the critical thinking disposition, and medication error risk level of high-alert medication. Conclusion : Based on the results of this study, it is suggested to develop and apply an educational strategy that can strengthen the knowledge and skills of critical thinking disposition and medication error risk level of high-alert medication to improve the ICU nurse's medication safety competency.

Analysis of Factors Influencing the Utilization Rate of Public Health Centers in Korea (한국의 보건소 이용률에 영향을 미치는 요인 분석)

  • Park, Eun-A;Choi, Sung-Yong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.3
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    • pp.203-215
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    • 2019
  • This study was conducted to identify the utilization of public health centers, as well as the individual characteristics and regional characteristics that affect their utilization based on data from the 2016 Community Health Survey, National Statistical Portal, and National Institute of Environmental Research. Independent samples t-tests, variance analysis, and multiple logistic regression analysis were used for analysis. Hierarchical multiple regression was used to analyze individual and regional characteristics. The results of hierarchical multiple regressions revealed that aged regions, women, older age individuals, respondents with lower education level and income level, walking practitioners, nutrition label readers, individuals experiencing depression, those who have received health checkups, those who are not covered by essential care, those who have spouses, and basic livelihood beneficiaries have increased use of public health centers. However, the use of public health centers decreased in stressors, and regions in which the population per 1,000, number of health care workers, health and welfare budget, fiscal independence, and unemployment rate were above the national average. As above, the central government and local governments need to analyze not only individual characteristics such as health behavior and psychological factors, but also regional characteristics, when establishing local health care policy.

Relationship between Ginsenosides and Mineral Contents in Panax Ginseng Grown with Nutrient Solution (양액재배인삼(養液栽培人蔘)에서 무기성분(無機成分)과 Ginsenosides 함량(含量)과의 관계(關係))

  • Park, Hoon;Lee, Mee-Kyoung
    • Applied Biological Chemistry
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    • v.30 no.2
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    • pp.186-191
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    • 1987
  • Relationship between the contents of ginsenosides in root and minerals (N,P,K,Ca,Mg) in leaf and root of and year Panax ginseng grown with solutions of various N,P,K levels was investigated by simple, multiple and partial regressions. In root K, N, and P in decreasing order showed significant negative correlation with each ginsenosides. In leaf K,N, and P in decreasing order showed significant positive, negative and both correlation with root ginsenosides, respectively. Relationship between K and root ginsenosides in the minus K plot did not follow that in other plots. The ratios of K,N, and P, in leaf to root in decreasing order showed positive correlations that were greater than in leaf or root. Mg was negatively while Ca was positively correlated in root but these were reverse in leaf and always nonisgnificant in both parts. Ginsenoside Rd, Re and $Rb_1$ were most affected by mineral contents. The effect of minerals on PT/PD was least.

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Mothers' Parenting Behaviors and School-Aged Children's Strategies and Competence of Emotional Regulation (어머니의 양육행동과 학령기 아동의 정서조절 전략 및 정서조절 능력간의 관계)

  • Park Seo-Jung;Kim Soon-Ok
    • Journal of Families and Better Life
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    • v.23 no.4 s.76
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    • pp.35-53
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    • 2005
  • In this study, the influence of mothers' parenting behaviors on children's strategies and competence of emotional regulation was examined. Further, the mediating effects of children's active-social support seeking and aggressive strategies on the above relationship were explored. The participants were W mother-child pairs. The children were 5th and 6th graders at two elementary schools in Kyunggi province and Kwangju metropolitan area The data were analyzed with descriptive statistics, factor analysis, Cronbach's alpha, Pearson correlations, standard multiple regressions and structural equation modeling analysis by LISREL 8.3. The main results of this study were as follows: (1) The more the mothers coached children with affection and reasoning, the more adaptive emotional regulation the children had; whereas children tended to have maladaptive emotional regulation in response to the mothers' rejecting and forceful parenting behaviors. Also, when children were coached by mothers with love, reasoning and consistent restriction, they used more active-social support seeking strategies, whereas they used more aggressive strategies when the mothers coached children with rejecting and forceful parenting behaviors. The more the mothers were rejecting, forceful and intervening, the more the children used passive-avoidant strategies. (2) The more the children used active-social support seeking strategies and the less the children used aggressive strategies, the more likely they had adaptive emotional regulation. The more the children used aggressive strategies, the more likely they had maladaptive emotional regulation. (3) Children's active-social support seeking strategies played a partial mediating role between mothers' affectionate and reasoned coaching and children's adaptive emotional regulation. These strategies, on the other hand, played a full mediating role between mothers' consistent restriction and children's adaptive emotional regulation. Children's aggressive strategies played a partial mediating role between mothers' rejecting and forceful parenting behaviors and children's maladaptive emotional regulation. Mothers' non-intervention had an influence on neither the children's aggressive strategies nor their maladaptive emotional regulation.

Perception of Community Family-Friendliness among Parents with Young Children in Urban and Rural Areas (도시화 규모에 따른 미취학자녀 부모의 지역사회 가족친화성 인식 : 대도시, 중소도시, 농어촌의 비교)

  • Yoo, Jae-Eon;Chin, Meejung
    • Journal of Families and Better Life
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    • v.30 no.6
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    • pp.39-51
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    • 2012
  • This study aims to find the association between community scales and perceived community family-friendliness among parents with young children. Communities were identified into three groups: metropolitan, small and medium-sized cities and rural, according to the degree of urbanization. The data were drawn from a sample of 1,038 parents who had at least one pre-school child. The data were analyzed by frequencies, means, GIS, ANOVA, and multiple regressions. This study compared the level of community family-friendliness both at the 'dong' and 'si' levels after controlling for the individual and household characteristics of the respondents. The findings of this study are as follows. First, after controlling for individual and household factors, the level of perceived community family-friendliness differed by the community scales. The parents in the small and medium-sized cities had higher scores on community family-friendliness than their counterparts in metropolitan communities. And parents in rural communities received had lower scores in community family-friendliness than those in metropolitan communities. The results also showed similar patterns for the 'dong' and 'si' models. While job and housing type were associated with the perceived family-friendliness of the community, other characteristics such as sex, age, educational level, monthly household income and home ownership were not.

Temperament and Social Support in Relation to Hope of Institutionalized Children (시설 보호 아동의 기질과 사회적 지지가 희망에 미치는 영향)

  • Lim, Jung Ha;Moon, Chi Yun
    • Korean Journal of Childcare and Education
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    • v.8 no.2
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    • pp.63-80
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    • 2012
  • This study examined the relationship among temperament, social support and hope of institutionalized children. A total of 198 children, aged 10 to 13, recruited from 20 institutions in Seoul participated. Demographics, temperament, social support from friends, institution-family and school teacher, and hope were assessed by self-report. Results showed that in bivariate level, temperament and social support were significantly associated with level of hope. However, hierarchical multiple regressions indicated that children's hope was predicted only by age and social support from friends, institution-family and school teacher. That is, temperament was not contributed to predict hope, whilst social support contributed unique variance to the prediction of hope, controlling for age. The more social support the children felt they had, the higher levels of hope they reported. Further analyses revealed that support from friends, institution-family and school teacher were influential factors in explaining hope agency, while support from institution-family and school teacher were influential factors in explaining hope pathway of institutionalized children, controlling for age.

The Main and Interaction Effects of Day-care Experiences and Maternal Parenting Behavior on Preschoolers' Problem Behaviors (보육경험과 어머니의 양육행동이 유아의 문제행동에 미치는 주효과와 상호작용 효과)

  • Choi, Mi Na;Shin, Nana
    • Korean Journal of Childcare and Education
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    • v.11 no.2
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    • pp.283-310
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    • 2015
  • The purpose of this study was to examine the main and interaction effects of day-care experiences and maternal parenting behavior on preschoolers' externalizing and internalizing problem behaviors. A total of 248 preschoolers(112 boys and 136 girls) and their mothers participated in this study. Mothers provided information about their children's day-care experiences(i.e., age of entry, hours per week, days per week, and number of day care centers attended by the preschoolers), their parenting behavior, and their children's problem behavior. Data were analyzed using correlations, multiple and hierarchical regressions, and post-hoc analysis suggested by Aiken and West(1991). First, preschoolers who frequently changed day-care centers showed higher levels of aggression. Second, maternal logical explanation, coercive and neglecting parenting behavior significantly influenced preschoolers' externalizing and internalizing problem behavior. Finally, interactions of day-care experiences and maternal parenting behavior were significant in predicting preschoolers' problem behavior. These findings suggest that day-care experiences need to be considered with other family variables in predicting preschoolers' developmental outcomes.

Psychological Well-being, Perceived Health Status, and Health Promoting Behavior of Clinical Nurses (임상간호사의 심리적 안녕감, 지각된 건강상태, 건강증진행위에 관한 연구)

  • Choi, Yune-Jung;Sung, Young-Hee
    • Journal of Korean Academy of Nursing Administration
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    • v.19 no.5
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    • pp.589-598
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    • 2013
  • Purpose: This study was designed to assess the degree of psychological well-being, perceived health status, and health promoting behavior of clinical nurses, and to identify correlations between variables. Methods: Participants were 194 nurses working at S hospital, Seoul and data were analyzed using descriptive statistics, ANOVA, Duncan's test, Pearson correlation coefficient, and multiple regressions. Results: Mean scores were 3.45 (5 point scale) for psychological well-being, 2.82(4 point scale) for perceived health status, and 2.30(4 point scale) for health promoting behavior. Psychological well-being correlated positively with perceived health status (r=.34, p<.001). Perceived health status showed a positive correlation with health promoting behavior (r=.30, p<.001). There was a positive correlation between psychological well-being and health promoting behavior (r=.52, p<.001). Personal growth(t=2.85, p=.005), purpose in life (t=2.30, p=.023) among subscales of psychological well-being, and perceived health status (t=2.13, p=.034) had a significant influence on health promoting behavior. These combinations explained 32.1% of health promoting behavior (F=12.58, p<.001). Conclusion: The results of this study suggest strategies to improve health promoting behavior by enhancing psychological well-being of nurses. Furthermore, a study to identify the effects of developed and applied psychological well-being promotion program should be conducted.

Factors influencing Evidence-Based Practice Attitudes among Undergraduate Nursing Students (간호대학생에서 근거기반실무 태도에 영향을 미치는 요인)

  • Choi, Mi-Hyang;Kim, Young-Hae;Son, Hyun-Mi
    • The Journal of Korean Academic Society of Nursing Education
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    • v.22 no.3
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    • pp.274-282
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    • 2016
  • Purpose: This study is aimed at identifying factors influencing attitudes of Evidence-Based Practice among nursing students. Methods: 202 nursing students were recruited from B city and G district. The questionnaires included critical thinking dispositions, information retrieval skills, knowledge and attitudes of Evidence-Based Practice, and characteristics. Data were analyzed by SPSS/Win 21.0 using descriptive statistics, t-test, ANOVA, Pearson correlation, and stepwise multiple regressions. Results: The average score of undergraduate nursing students for Evidence-Based Practice attitudes was $32.92{\pm}4.57$. Evidence-Based Practice attitudes had positive correlation with critical thinking disposition (r=.53, p<.001), information retrieval skills (r=.45, p<.001) and Evidence-Based Practice knowledge (r=.42, p<.001). Factors influencing Evidence-Based Practice attitudes were critical thinking dispositions (${\beta}=.45$) and Evidence-Based Practice knowledge (${\beta}=.30$). Total variance was explained about 35.3% (F=55.80, p<.001). Conclusion: These results show that teaching strategies that enhance critical thinking dispositions are recommended to improve Evidence-Based Practice attitudes among nursing students. Also, nursing education should include a regular Evidence-Based Practice curriculum to improve Evidence-Based Practice knowledge as is necessary for students to improve information retrieval skill. Reading nursing articles can help nursing students comprehend the up-to-data evidence of clinical practice.