• 제목/요약/키워드: $p$-value

검색결과 15,835건 처리시간 0.046초

간호사의 가치관에 관한 조사 연구 (A Study on the Values of Nurses)

  • 조현숙
    • 한국보건간호학회지
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    • 제9권1호
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    • pp.33-43
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    • 1995
  • Paying attention to the notable social problem occured by the confusion of values in the modern industrialized society changed rapidly, this study aimed to examine the values of nurses which lie at the heart of the diverse universe of their behavior considering their activities and professionalism influencing the applicants directly. The applicants for this study were 173 nurses selected randomly from both hospitals of rKJ located in Inchon and ry J located in Seoul. $\ulcorner$K$lrcorner$ The findings from this study were as follows; 1) Values of nurses In the Spranger's six personality category of values, the religious value was found to be the most important for the nurses, and followed by social value. These facts are thought to be disirable and hopeful very much reflecting the philosophical basis of nursing, that is, humanitarianism. But the theoretical value marked the lowest point that probably mean the lack of nurse's theoretical conditions which should be essential for the nursing professionalism. Thus it is suggested that the measures for encouraging the nurses or nursing students to have more interest in the educational training courses and schooling. 2) Analysis of relationship between the nurse's general characteristics and their values CD There were no differences statistically in values relating to the professional career and occupation. The nurses without religion placed, naturally, the lower religious value (t= 4.28. p=.000) than the nurses with religion. but placed higher aesthetic value(t=-2.82. p=.006) showing significant statistical differences. (3) Nurses from the 3-year program got the higher aesthetic value(t=3.07, p=.003) than those from the diploma program. but got the lower religious value (t = -2.05. p =.041) showing significant statistical differences. (4) The singles placed the higher aesthetic value (t= 2.21. p =.028) than those married in significant statistically.

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돼지감자 분말을 첨가한 스펀지케이크의 품질 특성 (Quality Characteristics of Sponge Cake Added with Helianthus tuberosus Powder)

  • 서강희;김경희
    • 동아시아식생활학회지
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    • 제24권1호
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    • pp.126-135
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    • 2014
  • This study was conducted to evaluate the quality characteristics of sponge cake consisting of 10%, 20%, 30%, 40% and 50% Helianthus tuberosus powder (HTP). With higher HTP contents in sponge cake, pH of sponge cake batter decreased significantly, whereas specific gravity was increased significantly (p<0.05). Meanwhile volume and symmetry indices of sponge cake were inversely proportional to HTP amounts. With higher HTP content in sponge cake, L value (brightness) of crumb significantly decreased (p<0.05), whereas a value (redness) significantly increased (p<0.05). b value (yellowness) of crumb in 40% and 50% HTP sponge cakes were significantly different from b value of crumb in 10%, 20% and 30% HTP sponge cakes. In 10~40% HTP sponge cake, L value, a value and b value all decreased significantly with higher HTP content in sponge cake. However in 40% and 50% HTP sponge cakes, there was no significant difference in any value. For texture characteristics, hardness of sponge cake significantly increased while cohesiveness decreased (p<0.05) with higher HTP content in sponge cake. On the other hand, springiness and gumminess of sponge cake did not change. Sponge cake containing 10% HTP showed the highest values for every organoleptic property. The results of this study suggest that sponge cake containing 10% HTP is the most appropriate for quality characteristics. This study also provides a way to increase the quality, texture characteristics, and organoleptic properties of sponge cake while reducing HTP content to less than 10% in order to qualify consumer taste.

Combination of Quantitative Parameters of Shear Wave Elastography and Superb Microvascular Imaging to Evaluate Breast Masses

  • Eun Ji Lee;Yun-Woo Chang
    • Korean Journal of Radiology
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    • 제21권9호
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    • pp.1045-1054
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    • 2020
  • Objective: This study aimed to evaluate the diagnostic value of combining the quantitative parameters of shear wave elastography (SWE) and superb microvascular imaging (SMI) to breast ultrasound (US) to differentiate between benign and malignant breast masses. Materials and Methods: A total of 200 pathologically confirmed breast lesions in 192 patients were retrospectively reviewed using breast US with B-mode imaging, SWE, and SMI. Breast masses were assessed based on the breast imaging reporting and data system (BI-RADS) and quantitative parameters using the maximum elasticity (Emax) and ratio (Eratio) in SWE and the vascular index in SMI (SMIVI). The area under the receiver operating characteristic curve (AUC) value, sensitivity, specificity, accuracy, negative predictive value, and positive predictive value of B-mode alone versus the combination of B-mode US with SWE or SMI of both parameters in differentiating between benign and malignant breast masses was compared, respectively. Hypothetical performances of selective downgrading of BI-RADS category 4a (set 1) and both upgrading of category 3 and downgrading of category 4a (set 2) were calculated. Results: Emax with a cutoff value of 86.45 kPa had the highest AUC value compared to Eratio of 3.57 or SMIVI of 3.35%. In set 1, the combination of B-mode with Emax or SMIVI had a significantly higher AUC value (0.829 and 0.778, respectively) than B-mode alone (0.719) (p < 0.001 and p = 0.047, respectively). B-mode US with the addition of Emax, Eratio, and SMIVI had the best diagnostic performance of AUC value (0.849). The accuracy and specificity increased significantly from 68.0% to 84.0% (p < 0.001) and from 46.1% to 79.1% (p < 0.001), respectively, and the sensitivity decreased from 97.6% to 90.6% without statistical loss (p = 0.199). Conclusion: Combining all quantitative values of SWE and SMI with B-mode US improved the diagnostic performance in differentiating between benign and malignant breast lesions.

백회(百會)(GV20).신회(顖會)(GV22) 자침이 뇌파에 미치는 영향 (The Effects of Acupuncture at the GV20 and GV22 on the Electroencephalogram(EEG))

  • 이상훈;류연희;권오상;손인철
    • Korean Journal of Acupuncture
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    • 제29권3호
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    • pp.467-475
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    • 2012
  • Objectives : The aim of this study was to examine the effects of Acupuncture at the GV20 and GV22 on normal human beings using power spectrum analysis. Methods : Electroencephalogram(EEG) power spectrum exhibits site-specific and state-related differences in various frequency bands. 8 channels Background Electroencephalogram (EEG) was carried out in 30 subjects(24 females and 4 males). Results : In ${\delta}$(theta) band, the power values decreased significantly at the 8-channel average value(p=0.03) and especially at T3(p=0.02), T4(p=0.001) and P3(p=0.03). In ${\alpha}$(alpha) band, the power values have no significant changes. In ${\beta}$(beta)band, the power values increased significantly at the 8-channel average value (p=0.02) and especially at T4(p=0.003), P3 (p= 0.03) and P4(0.02). In ${\beta}/{\delta}$(beta/theta) ratio, the value increased significantly at the 8-channel average value(p=0.002) and especially at Fp2(p=0.05), F4(p=0.007), T3(0.012), T4(0.005), P3 (0.007) and P4(0.03) Conclusions : Through this data, we conclude that acupuncture at the GV20 and GV22 on normal human beings could have possibility to awake the cerebral cortex by the functional mechanism.

ON PERIODIC BOUNDARY VALUE PROBLEMS OF HIGHER ORDER NONLINEAR FUNCTIONAL DIFFERENCE EQUATIONS WITH p-LAPLACIAN

  • Liu, Yuji;Liu, Xingyuan
    • 대한수학회논문집
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    • 제24권1호
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    • pp.29-40
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    • 2009
  • Motivated by [Linear Algebra and its Appl. 420(2007), 218-227] and [Linear Algebra and its Appl. 425(2007), 171-183], we, in this paper, study the solvability of periodic boundary value problems of higher order nonlinear functional difference equations with p-Laplacian. Sufficient conditions for the existence of at least one solution of this problem are established.

응집을 이용한 인의 제거에 급속혼화강도 및 응집제 주입량이 미치는 영향 (Effect of Rapid Mixing Intensity and Coagulant Dosages on Phosphorus Removal by Coagulation)

  • 한현진;문병현
    • 청정기술
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    • 제18권4호
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    • pp.404-409
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    • 2012
  • 본 연구는 교반강도 및 응집제 주입량의 변화에 따라 플럭의 성장특성이 인의 제거에 미치는 영향을 파악하고자 수행되었다. 본 연구에서는 Al/P 몰비를 1.0, 1.5와 2.0으로 급속혼화강도 G값을 100, 300과 500 $s^{-1}$로 변화시켜 수행하였다. 응집시 발생되는 응집지수(floc size index, FSI)와 크기가 다른 여과지를 이용하여 인의 제거율을 측정하여 성장 특성을 파악하였다. 연구결과 교반강도가 높을수록 용존인의 제거효율이 증가하였으며 Al/P 몰비가 낮을수록 교반강도의 영향이 컸다. T-P의 제거율은 Al/P 몰비 1.0 이하에서는 급속혼화 교반강도가 높을수록 높았으나 Al/P 몰비 1.0 이상에서는 G값 300 $s^{-1}$에서 가장 높은 제거 효율을 나타내었다. Al/P 비 1.0 이하에서는 G값 500 $s^{-1}$에서 가장 큰 FSI값을 나타내었으며, Al/P 몰비 1.0 이상에서는 G값 300 $s^{-1}$에서 가장 큰 FSI값을 나타내었다. 실제하수처리장 유출수를 대상으로 응집에 의한 인 제거에 Al/P 몰비와 급속혼화 강도의 영향은 인공조제수의 결과와 유사하였다.

도농간(都農間)의 라면식이(食餌)와 건강(健康)상태의 관련성(關聯性)에 관(關)한 연구(硏究) (A Study on the Interrelation between RAMYON DIET and Condition of Health in the Urban and Rural)

  • 김진원;류영수
    • 동의신경정신과학회지
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    • 제6권1호
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    • pp.85-94
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    • 1995
  • To find out the difference of local characteristics, body and mental activity of Ramyon's habitual eater,THI guestion which is objects of students of high school in the city and country was carried. The results are as follows: 1.In comparison of eating and non-eating group of both male and female syudents, the mean value of eating group was high and showed the significance(P<0.001). 2. The eating group of city showed the higher mean value than country and it showed the significance(P<0.05). 3. In the eating group of city;the female had higher mean value than the male and showed no significance. In the eating group of city;the female had higher mean value than the male and showed significance(P<0.001). 4. In the eating group of male, the mean value of city was higher than country and showed significance(P<0.001). In the eating group of female, the mean value of city was igher than country, but showed no significance. As the results of the above,se know habitual eating of Ramyon give rise to spleen functional disouder and consepuently mental disorder resulting trom spirit-blood's original impediment and the variety of character, such varieties were different according to the characteristics of local and difference. Therefore, we'll study more detail aspents from now on.

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간호사의 전문직관, 정치참여가 대상자 옹호에 미치는 영향 (Influence of Nursing Professional Value and Political Participation of Nurses on Patient Advocacy)

  • 김민지;이현경
    • 임상간호연구
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    • 제27권2호
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    • pp.140-148
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    • 2021
  • Purpose: This study aimed to identify the level of patient advocacy and to determine the influence of nursing professional value and political participation of nurses on patient advocacy theory. Methods: This study used a cross-sectional descriptive study design. Data were collected from 232 nurses from a tertiary hospital, three general hospitals, and a public health center in two districts of a metropolitan using self-reporting questionnaires. Data were analyzed by t-test, One-way ANOVA, Pearson's correlation coefficient, and multiple linear regression using SPSS/ WIN 21.0. Results: The mean score of patient advocacy was 4.64±0.55 out of 6, nursing professional value was 3.60±0.49 out of 5, and political participation was 2.21±0.71 out of 5. Nursing professional value (r=.37, p<.001) and political participation (r=.23, p<.001) showed a significant positive relationship with patient advocacy. Factors influencing patient advocacy were identified as nursing professional value (β=.28, p<.001) and political participation (β=.15, p=.014). Conclusion: Based on the findings that nursing professional value and political participation are key factors of patient advocacy, educational strategies and endeavors as level of professional organization are recommended for enhancing patient advocacy.

수종 치과용 시멘트 경화시 초기 산도측정에 관한 실험적 연구 (AN EXPERIMENTAL STUDY ON THE MEASUREMENT OF THE INITIAL ACIDITY OF DENTAL CEMENTS)

  • 이명종
    • Restorative Dentistry and Endodontics
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    • 제16권2호
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    • pp.189-196
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    • 1991
  • The purpose of this study was to observe the inital acidity of zinc phosphate cements(Confit and Super Cem), poly carboxylate cement(Unident and Poly F), zinc oxide engenol cement(Stailine Super EBA) and g1ass ionomer cement(Fuji ionomer) Each cement was manuplated in accordance with each manufacturer's direction. All cements were mixed at the room temperature of $23^{\circ}{\pm}$, $5^{\circ}C$, and the electrode of pH meter(Ionanalyzer) was inserted in the mixed cement, and the acidity of cement were measured for 20 minutes from begining of cement mixing at $23^{\circ}C$ and $37^{\circ}C$ Results were as follows 1. The acidity of all cements ranges from pH 3, 5 to 4, 5 at 2 minutes after the start of mixing 2. The value of pH at $23^{\circ}C$ was higher than the value of pH at $37^{\circ}C$ in all cements. 3. As the time elapsed, the pH in all cements rose. The 20 minutes after the start of mixing the range of acidity was from pH 5 to pH 6 except Poly F. 4. In polycarboxylate cement, the different value of acidity at $23^{\circ}C$ and $37^{\circ}C$ was greatest. 5. The curve pattern of acidity in Unident was similar to that in Poly F cement The pH value of Unident was higher then that of Poly F, and value of pH in the curve pattern of acidity in Confit were similar to those in Super cement.

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근로자의 산업보건에 대한 지식$\cdot$태도$\cdot$실천 조사 연구 (A Study on Industrial Worker's Knowledge, Attitude and Practice about Occupational health - Chonbuk Province -)

  • 서인선;안옥희
    • 한국보건간호학회지
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    • 제8권1호
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    • pp.63-72
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    • 1994
  • The purpose of this study was to estimate the industrial worker's knowledge, attitude, and practice about occupational health and to provide the basic data for the development of industrial health services. The study was undertaken from January 15 to January 30, 1993. 549 industrial workers at the Industrial Complex located in Chonbuk Province were participated in this study. The results were as follows; 1. The Knowledge, Attitude and Practice leveles of Workers about Occupational Health. The levels were measured by five point scale. The mean score of knowledge was 2. 59 point out of 4. The mean score of attitude was 2.37 point out of 4. The mean score of practice was 2. 38 point out of 4. 2. The analysis of their knowledge" attitude, and practice about general characteristics. 1) There was significant difference among different age groups. $(P{\leqq}0.0001)$ -. The group of age 25-29 was the highest value in knowledge and attitude. -. The group of age over 50 was highest value in practice. 2) There was significant difference between sexual groups in all items. -. Male workers were higher than Female workers in all items. (P=0.0000) 3) There was significant difference according to the marital status in all items. -. Married workers were higher than Single workers in all items. (P = 0.0000) 4) There was significant difference among different groups of educational level in attitude and practice. (P<0.05) The value was positivly correlated to their educational level. 5) There was significant difference among the groups of job-part in knowledge and practice. (P=0.000, P=0.031) -. Office workers were higher than Production workers in all items. 6) There was significant difference among different group of job experience in knowledge and attitude. (P=0.0000. P=0.0387) The value was positively correlated to the years length of job experience. 7) There was significant difference among the groups of different monthly income in all items. (P=0.000) The value was positively correlated to their monthly income.

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