• Title/Summary/Keyword: Two-point correlation

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Case Report of Sacrum Malposition Analysed by Relative Research of Test (검사법의 비교연구로 살펴본 천골변위 증례보고)

  • Kim, Gyu-Sub;Kang, Woo-Jin;Moon, Ik-Ryoul;Park, Jae-Sung;Jeon, Jun-Hyeon;Jeong, Won-Choon;Heo, Su-Young
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.10 no.1
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    • pp.129-137
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    • 2015
  • Objectives : The purpose of this study is to find out the relation between Orthopedic Test of sacroiliac joint and two Sacrum Malposition Tests. Methods : We investigated 56 cases of patients who complained of unilateral sacroiliac joint pain and were diagnosed as sacrum malposition. We used Gaenslen's Test, Sacroiliac Resisted Abduction Test and Patric's Test as Orthopedic Test for pain area, while used Thompson's Sacrum Test and Greenman's 4 Point Test for diagnosis of sacrum malposition. Results : P-value was 0.511 between Thompson's Sacrum Test and Greenman's 4 Point Test within negative Orthopedic Test, and was 0.523 within positive Orthopedic Test(p>0.05) Conclusions : The results suggested that the Thompson's Sacrum Test was not statistically correlation with Greenman's 4 Point Test within negative Orthopedic Test, and was not correlated within positive Orthopedic Test.

Computation of Ionic Conductivity at NASICON Solid Electrolytes (II) Effects of mid-Na Sites on Na1-Na2 Conduction Paths (NASICON 고체 전해질의 이온 전도도 계산 (II) Na1-Na2 전도 경로에 미치는 mid-Na의 영향)

  • 최진삼;서양곤;강은태
    • Journal of the Korean Ceramic Society
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    • v.32 no.11
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    • pp.1292-1300
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    • 1995
  • The ionic conductivity of NASICON solid electrolytes was simulated by using Monte Carlo Method (MCM). There were included two conduction paths: (1) Na1-Na2 and (2) Na1-Na2 including Na2-Na2. We assumed that mid-Na ions provde an additional driving force for Na mobile ions due to the interionic repulsion between Na1 and Na2 ions. The inflection point of vacancy availability factor, V has been shown at nearby x=2, the maximum mid-Na ions. The inflection point of vacancy availability factor, V has been shown at nearby x=2, the maximum mid-Na sites are occupied. The effective jump frequency factor, V has been shown at nearby x=2, the maximum mid-Na sites are occupied. The effective jump frequency factor, W increased rapidly with the composition at low temperature, but decreased at high temperature region. On Na1-Na2 conduction path, the minimum of charge correlation factor, fc and the maximum of $\sigma$T were appeared at x=2.0. this indicated that mid-Na ions affect on the high ionic conductivity behavior. At the whole range of NASICON composition, 1n $\sigma$T vs. 1/T* plots have been shown Arrhenius behavior but 1n (VWFc) vs. 1/T* have been shown the Arrhenius type tendency at x=2, which mid-Na is being the maximum. The results of MCM agreed with the experimental one when the chosen saddle point value was 6$\varepsilon$ : 3$\varepsilon$. Here the calculated characteristic parameter of materials, K and the phase transition temperature were -4.001$\times$103 and 178$^{\circ}C$ (1/T*=1.92, 1000/T=2.22), respectively.

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Impact of Cardio-Pulmonary and Intraoperative Factors on Occurrence of Cerebral Infarction After Early Surgical Repair of the Ruptured Cerebral Aneurysms

  • Chong, Jong-Yun;Kim, Dong-Won;Jwa, Cheol-Su;Yi, Hyeong-Joong;Ko, Yong;Kim, Kwang-Myung
    • Journal of Korean Neurosurgical Society
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    • v.43 no.2
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    • pp.90-96
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    • 2008
  • Objective: Delayed ischemic deficit or cerebral infarction is the leading cause of morbidity and mortality after aneurysmal subarachnoid hemorrhage (SAH). The purpose of this study is to reassess the prognostic impact of intraoperative elements, including factors related to surgery and anesthesia, on the development of cerebral infarction in patients with ruptured cerebral aneurysms. Methods: Variables related to surgery and anesthesia as well as predetermined factors were all evaluated via a retrospective study on 398 consecutive patients who underwent early microsurgery for ruptured cerebral aneurysms in the last 7 years. Patients were dichotomized as following; good clinical grade (Hunt-Hess grade I to III) and poor clinical grade (IV and V). The end-point events were cerebral infarctions and the clinical outcomes were measured at postoperative 6 months. Results: The occurrence of cerebral infarction was eminent when there was an intraoperative rupture, prolonged temporary clipping and retraction time, intraoperative hypotension, or decreased $O_2$ saturation, but there was no statistical significance between the two different clinical groups. Besides the Fisher Grade, multiple logistic regression analyses showed that temporary clipping time, hypotension, and low $O_2$ saturation had odds ratios of 1.574, 3.016, and 1.528, respectively. Cerebral infarction and outcome had a meaningful correlation (${\gamma}$=0.147, p=0.038). Conclusion: This study results indicate that early surgery for poor grade SAH patients carries a significant risk of ongoing ischemic complication due to the brain's vulnerability or accompanying cardio-pulmonary dysfunction. Thus, these patients should be approached very cautiously to overcome any anticipated intraoperative threat by concerted efforts with neuro-anesthesiologist in point to point manner.

A Study on the Chemical Features of Precipitition at High Mountain Area (고산지역 강수의 화학 성분 특성에 관한 연구)

  • 최재천;이민영;이선기
    • Journal of Korean Society for Atmospheric Environment
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    • v.10 no.1
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    • pp.64-72
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    • 1994
  • Recently, the acid precipitation, composed primarily of dilute $H_2$S $O_4$, HN $O_3$and originating from the burning of fossil fules, has become one of the major environmental problems. This study was carried out to investigate the chemical features of precipitation at Sobaek-san Meteorological Observation Station(mean sea level; 1,340m, 36$^{\circ}$56’N, 128$^{\circ}$27' E)from May 1991 to December 1993. The major Point in this study divided the whole wind directions into two parts. And, the two parts are the north- westerly wind case and south-easterly wind case. The concentration of anions and cations in precipitation were measured by ion chromatography(Dionex 4000i). The volumn weighted mean pH and conductivity values of the whole precipitation period were 5.26, 14.3$mutextrm{s}$/cm, respectively. The order and frequency rate of the major anions concentration in the north- westerly and south easterly wind case were S $O_4$$^{2-}$(49.3%) > N $O_3$$^{[-10]}$ (23.9%) > C $l^{[-10]}$ (14.8%) > $F^{[-10]}$ (12.0%) and S $O_4$$^{2-}$(61.1% ) > N $O_3$$^{[-10]}$ (21.5%) > C $l^{[-10]}$ (13.5%) > F/sip -/(4.0%), respectively. The order and frequency rate of the major cations concentration in the north-westerly and south- easterly wind case were $Ca^{2+}$(49.3%) > N $H_4$$^{+}$(24.2%) >N $a^{+}$(22.4%) >M $g^{2+}$(14.9%) > $K^{+}$(3.8%) and N $H_4$$^{+}$(4:3.8%) $Ca^{2+}$(28.6%) > N $a^{+}$(16.8%) > $K^{+}$(6.3%) > $Mg^{2+}$(4.5%), respectively. The larger anions and cations concentration values than others were S $O_4$$^{2-}$, N $O_3$$^{[-10]}$ and $Ca^{2+}$, N $H_4$$^{+}$, respectively. The correlation coefficient between pH value and ion concentrations for the north-westerly and south-easterly wind case was shown less than 0.5 except for Ca/.sup 2+/ in the statistical analysis SPSS. But the correlation coefficient for the all wind case between sulfate and cations was shown high correlation above 0.6.correlation above 0.6.

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The Impact of Chronic Illness on Children and their Families (아동의 만성질환이 환아 및 환아 가족의 일상생활에 미치는 영향)

  • Han, Kyung-Ja;Park, Yeun-Hwan
    • Journal of Home Health Care Nursing
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    • v.8 no.2
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    • pp.135-147
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    • 2001
  • The aim of this descriptive study was to identify the impact of chronic illness on children and their families. Mothers of 177 children with chronic disease were recruited from aged one to 17 years hospitalizing the pediatric nursing unit at one university hospital. 28 questions. a self-complete maternal questionnaire developed by researchers based on literatures and 'The Impact of Childhood Illness Scale' (Hoare & Russell, 1995) assess four aspects of the child's and family's lifestyle with two dimensions for each question. the frequency of the problem and its importance of concern that it cause. In the data analysis. Pearson correlation coefficients and analysis of variance were used to test any association and a statistical comparisons. between individual variables and the impact on child's and family's lifestyle. The results were as follows: 1) There were the higher mean scores on the importance dimension than on the frequency dimension on total impact on child's and family's lifestyle. On the importance dimension. mothers had much higher levels of concern about impact on child's development and adjustment among subscales. On the frequency dimension, mothers had much higher levels of concern about impact on the family daily living on subscales. 2) The impact on child's and family's lifestyle related on individual variables were: (1) On the importance dimension. there was statistically significant low in the impact on child's development and adjustment among subscales in older parent group compared with it of younger parent group. (2) On the frequency dimension. there were statistically significant high in the impact on child's development and adjustment among subscales in the children with leukemia or cancer compared with it of the other children who had another chronic illnesses. And there were statistically significant high in the impact on child's development and adjustment among subscales in less than high school educated mothers compared with it of mothers who was educated college level. (3) On the frequency dimension. There were statistically significant high in the impact on family's daily living among subscales and total impact on child's and family's lifestyle in female children. (4) There was positive correlation between impact on parents daily living and frequency of child's hospitalization on the frequency dimension. but there was negative correlation between the two variables on the importance dimension. (5) There was positive correlation between impact of chronic illness and its treatment and duration of child's hospitalization on the frequency dimension. In conclusion. these results were reflected by the high level of concerns about impact on child's development and adjustment although mothers had frequently responded about the impact on the family daily living. We suggest consistent intervening program that help the family empowering to make children live with and adjust to their chronic illnesses from the point of diagnosis and after discharge from the hospital. We also suggest these results can be utilized as a useful data in the practice of home health nursing for children who have chronic illnesses and their families.

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Differentiation of Adductor-Type Spasmodic Dysphonia from Muscle Tension Dysphonia Using Spectrogram (스펙트로그램을 이용한 내전형 연축성 발성 장애와 근긴장성 발성 장애의 감별)

  • Noh, Seung Ho;Kim, So Yean;Cho, Jae Kyung;Lee, Sang Hyuk;Jin, Sung Min
    • Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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    • v.28 no.2
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    • pp.100-105
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    • 2017
  • Background and Objectives : Adductor type spasmodic dysphonia (ADSD) is neurogenic disorder and focal laryngeal dystonia, while muscle tension dysphonia (MTD) is caused by functional voice disorder. Both ADSD and MTD may be associated with excessive supraglottic contraction and compensation, resulting in a strained voice quality with spastic voice breaks. The aim of this study was to determine the utility of spectrogram analysis in the differentiation of ADSD from MTD. Materials and Methods : From 2015 through 2017, 17 patients of ADSD and 20 of MTD, underwent acoustic recording and phonatory function studies, were enrolled. Jitter (frequency perturbation), Shimmer (amplitude perturbation) were obtained using MDVP (Multi-dimensional Voice Program) and GRBAS scale was used for perceptual evaluation. The two speech therapist evaluated a wide band (11,250 Hz) spectrogram by blind test using 4 scales (0-3 point) for four spectral findings, abrupt voice breaks, irregular wide spaced vertical striations, well defined formants and high frequency spectral noise. Results : Jitter, Shimmer and GRBAS were not found different between two groups with no significant correlation (p>0.05). Abrupt voice breaks and irregular wide spaced vertical striations of ADSD were significantly higher than those of MTD with strong correlation (p<0.01). High frequency spectral noise of MTD were higher than those of ADSD with strong correlation (p<0.01). Well defined formants were not found different between two groups. Conclusion : The wide band spectrograms provided visual perceptual information can differentiate ADSD from MTD. Spectrogram analysis is a useful diagnostic tool for differentiating ADSD from MTD where perceptual analysis and clinical evaluation alone are insufficient.

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Geostatistical Integrated Analysis of MASW and CPTu data for Assessment of Soft Ground (연약지반 평가를 위한 MASW탐사와 CPTu 자료의 지구통계학적 복합 분석)

  • Ji, Yoonsoo;Oh, Seokhoon;Im, Eunsang
    • Geophysics and Geophysical Exploration
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    • v.19 no.4
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    • pp.187-199
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    • 2016
  • In order to delineate the soft ground distribution, an integrated geostatistical analysis was performed using the MASW (Multichannel Analysis of Surface Wave) which has the information of overall region and CPTu (Piezo Cone Penetration Test) which provides the direct information of the measuring point of the ground. MASW results were known to have close relationship with the ground stiffness. This correlation was confirmed through the comparison of MASW data obtained from two survey lines to the laboratory test with extracted soil samples. 3D physical property distribution in the study area was acquired by geostatistical integrated analysis with the data of tip resistance ($q_c$) and pore pressure (u) from the CPTu obtained at 6 points within the study area. The integrated analysis was conducted by applying the COSGSIM (Sequential Gaussian Co-Simulation) technology which can carry out the simulation in accordance with the spatial correlation between the MASW results and both tip resistance and pore pressure. Besides the locations of CPTu, borehole investigations were also conducted at two different positions. As a result, the N value of SPT and borehole log could be secured, so these data were used for the analysis of the geotechnical engineering accuracy of the integrated analysis result. For the verification of reliability of the 3D distribution of tip resistance and pore pressure secured through integrated analysis, the geotechnical information gained from the two drilling areas was compared, and the result showed extremely high correlation.

Odor Modeling of acetaldehyde in Gumi National Industrial Complex (구미국가산업단지의 아세트알데히드 악취모델링)

  • Lee, Eun Ju;Akhtar, Muhammad Saeed;Lim, Kwang-Hee
    • Korean Chemical Engineering Research
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    • v.54 no.1
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    • pp.22-35
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    • 2016
  • In this study CALPUFF modeling was performed to establish a correlation between regions of frequent civil odor complaints near Gumi national industrial complex and odor-emission facilities of synthetic fiber manufacturers in the same area as main acetaldehyde-emission point sources. As a result of the CALPUFF modeling, the maximum concentration of acetaldehyde in Gumi national industrial complex was reduced from O ($10^{-5}g/m^3$) to O ($10^{-6}g/m^3$) upon improving emission facilities of T company so that the maximum concentrations of acetaldehyde frequently appeared in complex 3. In addition, the predicted range of the maximum acetaldehyde concentration in Gumi national industrial complex was also improved in comparison with that prior to improving emission facilities of T company. These maximum concentrations of acetaldehyde obtained to estimate the expected contribution of total acetaldehyde point source by CALPUFF modeling showed the similar values to those measured in 'HAPs investigation in the region of Gumi-Daegu' and were consistent to the trend of civil odor complaints. Therefore, the expected contribution of total acetaldehyde point source was validated. The relative contribution of T company upon improving its emission facilities was predicted to be lowered by more than factor of two, compared to that prior to improving its emission facilities. To the contrary, the relative contribution of W company upon improving emission facilities of T company was predicted to be increased by more than factor of two, compared to that prior to improving emission facilities of T company. This indicates that the contribution of aldehyde point sources of W company was relatively increased upon improving emission facilities of T company.

Relationship among Nutritional Intake, Duration of Outdoor Activities, Vitamin D Status and Bone Health in High School Girls

  • Kim, Ji Young;Kim, Oh Yoen;Hyun, Yae Jung;Koo, Sun Mo;Song, Sang Hoon;Jang, Yangsoo;Lee, Jong Ho
    • Nutritional Sciences
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    • v.7 no.4
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    • pp.208-213
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    • 2004
  • In this study, we examined the effects of dietary 1,3-diacylglycerol (DG) compared to conventional triacylglycerol (TG) oil on the postprandial response of total and chylomicron TG, glucose, insulin, and free fatty acid (FFA). This study was conducted using a cross-over design. Ninety subjects participated in the high-fat meal tolerance test where they were randomly assigned to consume two experimental sandwiches containing mayonnaise with TG or DG oil with a seven-day interval. Blood samples were collected before ingestion and at 2, 3, 4 and 6 hr time point after ingestion and analyzed for total and chylomicron TG, glucose, insulin, FFA and phospholipid fatty acid composition. Both TG and DG ingestion had similar effects on postprandial TG response, but a different response from chylomicron TG. Compared with the TG group, TG levels were significantly lower only at 6 hr time point in the DG group. On the other hand, chylomicron TG rose steeply at 2 hr time point and decreased faster in this group. Also, the adjusted value to fasting levels was the same as the unadjusted level. Fasting levels and net differences in insulin were significantly lower at 3 hr time point where chylomicron TG levels were significantly lower in the DG group. But those of glucose and FFA in the TG and DG groups did not differ significantly. Fasting and postprandial levels of fatty acid composition in serum phospholipids in the two groups did not differ significantly. In conclusion, this study indicated that one could reduce the magnitude of postprandial lipemia without influencing glucose metabolism by consumning DG oil as a substitute for TG oil. Based on the correlation of coronary artery disease and postprandial lipemia, dietary DG ingestion might have a beneficial effect in treating such a disease. Further studies are required to clarify the long-tenn effects of dietary DG on blood lipid levels in humans.

Use of Dynamic Cone Penetrometer and Light-Weight Deflectometer for Quality Control on Subgrade Base (토공사 다짐품질 관리를 위한 동적콘관입시험 및 소형충격재하시험의 활용에 관한 연구)

  • Baek, Sung-Ha;Cho, Jin-Woo;Kim, Namgyu;Kim, Jin-Young
    • Journal of the Korean Geotechnical Society
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    • v.38 no.11
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    • pp.55-67
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    • 2022
  • This study applied the dynamic cone penetrometer test (DCPT) and light-weight deflectometer test (LWDT) to the quality control of subgrade base by performing DCPT, LWDT, and plate load test (PLT) at two earthwork sites. Although DCPT and LWDT were performed under the same conditions, the results showed significant variation with the test location. Because the measured value at the time of the initial blow, which varies depending on the test location, significantly influenced the test result. Thus, it was appropriate to ignore the first two blows as preliminary blows and use subsequent measurements as quality control indicators. In addition, DCPT, LWDT, and PLT results showed a high correlation under the same conditions. Especially regression analyses using averaged data for each experiment condition tended to yield significantly improved R2 values over individual point data sets. This indicates that average DCPT and LWDT values at various adjacent locations are better quality control indicators for subgrade bases than individual point values.