• Title/Summary/Keyword: difference between the mean values

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Study on the Erythrocyte Zinc Proctoporphyrin and ZPP/Heme Ratio in Normal Korean (한국인 적혈구 Zinc Protoporphyrin 및 ZPP/Heme Ratio에 관한 연구)

  • 채범석
    • Journal of Nutrition and Health
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    • v.25 no.7
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    • pp.608-616
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    • 1992
  • Using the hematofluiorometer normal values of the erythrocyte zinc protoporphyrin(ZPP) and ZPP/Heme ratio were measured in 312 males and 163 females aged from 6 month to 73 years old and compared with those of anemic persons. The mean$\pm$SD values of ZPP of normal Koreans were 28.5$\pm$6.4($\mu\textrm{g}$/dl) in males and 3.18$\pm$7.7 in females. the mean$\pm$SD of ZPP/Heme ratio were 49.5$\pm$12.3($\mu$mol/mol heme) in males and 62.0$\pm$15.8 in females. The difference in the mean ZPP and ZPP/Heme ratio values between male and female subjects were statistically signficant(p<0.0001) In male subjects the mean ZPP and ZPP/Heme ratio of the age groups less than 15 years old were higher than adult groups and the difference between age groups was significant(p<0.005 and p<0.0001 respecti-vely) The normal upper limit of the mean$\pm$2SD in normal male and female subjects were 41.3 and 47.2 for ZPP and 74.1 and 93.6 for ZPP/Heme ratio respectively. The mean values of ZPP and ZPP/Heme ratio measured in the anemic persons were higher than those of normal subjects and did not show any significant difference by the sex and age groups except in 6-14 years male groups. The test specificity(positivity) analyzed in the anemic persons by the cut-off values calculated from the normal data were 50.6% for ZPP and 73.0% for ZPP/Heme ratio. The correlation analysis between blood hemoglobin and erythrocyte ZPP or ZPP/Heme ratio in the total 801 normal and anemic subjects showed that there are very high logarithmic correlation between the hemoglobin levels and ZPP/Heme ratio (r=-0.8339) and high correla-tion between the hemoglobin levels and ZPP concentrations(r=-0.6372) These results suggested that the measurement of the erythrocyte ZPP and ZPP/Heme ratio with the hematofluorometer can be a usuful screening method for iron deficiency anermin because they provide a reliable immediate results with a small amount of sample and are relatively simple and inexpensive.

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A comparative study on the accuracy of the devices for measuring the implant stability

  • Cho, In-Ho;Lee, Young-Il;Kim, Young-Mi
    • The Journal of Advanced Prosthodontics
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    • v.1 no.3
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    • pp.124-128
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    • 2009
  • STATEMENT OF PROBLEM. How the ISQ values measured by $Osstell^{TM}$ and $Osstell^{TM}$ Mentor are related, and whether the ISQ values acquired from the two machines changes in accordance with changes in implant stability are not yet fully understood. PURPOSE. The aim of this study was to find out correlation between the ISQ values acquired from $Osstell^{TM}$ and $Osstell^{TM}$ Mentor, and to evaluate the clinical effectiveness and accuracy of two devices. MATERIAL AND METHODS. Sixty two implants were inserted into 47 patients, and their ISQ values were measured using $Osstell^{TM}$ and $Osstell^{TM}$ Mentor. In the first stage surgery, the ISQ values of forty four implants inserted into thirty five patients were measured. In the second stage surgery, the values of fifty implants inserted into thirty seven patients were measured. The values were analyzed to determine the difference between the mean ISQ values of $Osstell^{TM}$ and $Osstell^{TM}$ Mentor. In addition, the correlation between implants used in the first and second stage of surgery with regard to their types and areas of insertion were analyzed. The difference between the ISQ values of 32 implants in each patient during the first and second stage was analyzed. The statistical assessment was carried out using SPSS V. 12.0 for Win. (SPSS Inc., Chicago, USA). The Pearson correlation coefficient was used to examine the correlation between $Osstell^{TM}$ and $Osstell^{TM}$ Mentor in the first and second stages of surgery, whereas the difference between their ISQ values was evaluated using a paired t-test. RESULTS. In the first stage, the mean ISQ value for $Osstell^{TM}$ and $Osstell^{TM}$ Mentor was 70.84 and 75.09, respectively, showing a significant difference (P < .01). In the second stage, the mean ISQ value of $Osstell^{TM}$ and $Osstell^{TM}$ Mentor was 71.76 and 75.94, respectively, also showing a significant difference (P < .01). The difference between the ISQ values in patients in the first and the second stages was significant with both instruments. CONCLUSION. The significant difference in the values obtained using the $Osstell^{TM}$ and $Osstell^{TM}$ Mentor between the first and second stages of implant surgery indicates that these values can be a convenient and precise way for evaluating the implant stability in clinical practice.

Effects of Woman's Ability Balance High heels According to the Supporting Surface Balance Training (지지면에 따른 균형훈련이 하이힐을 신은 여성의 균형능력에 미치는 영향)

  • Hwang, Jinuk;Bae, Wonsik
    • Journal of The Korean Society of Integrative Medicine
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    • v.1 no.2
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    • pp.93-104
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    • 2013
  • Purpose : The purpose of this study is balanced exercise program according to the supporting surface any affect women's ability to balance high heels. Methods : This study subjects were normal 20 females in their twenties. They were divided into stable supporting surface(n=10), unstable supporting surface(n=10), and they exercised three times a week for 5 weeks. In order to compare the difference of balance, the subjects were measured before and after training. Balance was examined using the balance master 7.0 version systems. Results : 1. There was significant difference values between pre-exercise and post-exercise of unstable surface group on the FORM-EO and FORM EC of MCTSIB and all of Unilateral Stance variables. 2. There was significant difference values between pre-exercise and post-exercise of stable surface group on the mean EPE, mean MXE, and mean DCL of LOS. 3. There was significant difference values between pre-exercise and post-exercise of unstable surface group of the rhythmic weight shift. 4. There was significant difference value in the slow directional control of rhythmic weight shift between groups after exercise. Conclusion : Training on stable supporting surface group and unstable supporting surface group improve balance.

A Study on the Emotional Characteristics of Temporomandibular Disorder Patients using SCL-90-R (SCL-90-R을 이용한 측두하악장애 환자의 정서적 요인에 관한 연구)

  • Young-Ok Lee, DDS;ung-Woo Lee, DDS
    • Journal of Oral Medicine and Pain
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    • v.11 no.1
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    • pp.67-78
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    • 1986
  • This study was attempted to identify the emotional characteristics of temporomandibular disorder patients. The author applied one of the self-report modes of psychological measurement, Symptom Chechlist-90-Revision. The subjects were 219 TM disorder patients who visited the Department of Oral Diagnosis and Oral Medicine, Seoul National University Hospital during the period from December 1985 to September 1986. All the patients were divided into subgroup according sex, age, duration of symptoms, presence or absence of T-scores of each symptom dimension and global index. The obtained result were as follows : 1. Mean value of T-scores of each symptom dimension and global of the overall patients was within normal range. The two higher mean values of T-scores among 9 symptom dimensions were those of SOM and ANX. 2. Mean values of T-scores of females were higher than those of males in the O-C, DEP, ANX, HOS, PSY dimensions and all global indices, and there was a significant difference in the distribution of T-scores of the SOM dimension between males and female(P<0.05). 3. There was no significant difference between the subgroup under 30 years and the subgroup 30 years or older. 4. The subgroup with symptoms for 6 months or longer showed the higher mean values of T-scorers in the SOM, O-C, I-S, DEP, ANX, PHOB, PAR, PSY dimensions and all global indices compared with the subgroup with symptoms for shorter than 6 months. 5. The subgroup with pain showed the higher mean values of T-scores in all the symptom dimensions except the PAR in comparison with the subgroup with other complaints than pain, and there was a significant difference in the distribution of T-scores of the PST index between the pain subgroup and the non-pain subgroup(P<0.05). There was a significant difference in the distribution of T-scores of the PHOB dimension between the high-school graduates subgroup and the college graduates subgroup(P<0.05).

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A Study on Moral Judgement and Ethical Values of Nursing students (간호학생의 도덕판단과 윤리적 가치관)

  • Kwon, Young-Mi
    • The Journal of Korean Academic Society of Nursing Education
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    • v.8 no.1
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    • pp.17-28
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    • 2002
  • The purpose of this study was to provide the basic sources for educational program that identifies moral judgement and ethical values of nursing students. The subjects consisted of 114 nursing students in college. Data were collected by the Korean Form of Moral Development Inventory(Shin, 1997) and Nursing Ethical Values(Lee, 1990) from March 5 to 21. 2002. The findings were as follows: 1. The mean score of the stage 5B was higher than the score of other stages. The mean score of P(%) was 39.15. No significant difference were found between P(%) and general characteristics. 2. The mean score of the nursing ethical values was 3.38. The nursing students took the position of deontology slightly. In nurse-colleague relationship area(4.22), the subjects should to taking evidently deontological position. 3. According to general characteristics, no significant difference was found except nurse-patient relationship area among subcategory of ethical values. The mean score of this area by influence person of moral development were significantly different at the .05 level. 4. The trend of subjects in action choices on 4 dilemmas of the DIT showed between-subjects variability. Action choices on 'Heinz and the drug', 'Doctor's dilemma', and 'webster' were 'pro' in most of subjects, whereas 'escaped prisoner' was 'con'. 5. The ethical values in human-life area associated with action choices on 'Heinz and the drug' was significantly different . And the nursing ethical values, human-life area, and nurse-nursing task relationship area were significantly different according to action choices on 'Doctor's dilemma'. 6. There was found little correlation between action choices on 4 dilemmas of the DIT and moral judgement. Also little correlation was shown between action choices on 4 dilemmas of the DIT and ethical values. No significant correlation were found between moral judgement and nurse ethical values.

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The Relationship between Zinc protoporphyrin and Lead levels in Normal Adults' Blood And Comparison of Zinc protoporphyrin values by High Performance Liquid Chromatograph and Hematofluorometer (정상인에서 혈중 연과 zinc protoporphyrin과의 상관관계 및 HPLC 와 Hematofluorometer로 측정한 zinc protoporphyrin량간의 비교)

  • Kim, Kangyoon;Kim, Hyunwook
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.3 no.2
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    • pp.141-151
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    • 1993
  • Blood samples obtained from 200 adults who had visited the "S" general hospital were analyzed to compare the zinc protoporphyrin (ZPP) levels quantified by high performance liquid chromatograph (HPLC) and by hematofluorometer (HF) to investigate the methodological difference if any and the relationship between the levels of blood lead and ZPP among no-lead exposed adults. Also investigated were the distribution of ZPP and protoporphyrin IX (PPIX) concentrations, the establishment of normal levels of blood ZPP and blood lead, and the contribution of age and sex factors to these values. These subjects had no previous occupational exposure to lead. The results obtained were as follows : 1. The mean values of blood lead for male and female subjects were $9.46{\pm}2.44{\mu}g/dl$ and $8.09{\pm}2.17{\mu}g/dl$, respectively. The difference observed in the mean concentrations between male and female subjects was statistically very significant. 2. The mean values of blood ZPP by HPLC for male and female subjects were $15.94{\pm}4.55{\mu}g/dl$ and $22.26{\pm}6.61{\mu}g/dl$, respectively. The difference observed in the mean concentrations between male and female subjects was statistically not significant. The mean values of blood PPIX by HPLC for male and female subjects were $2.51{\pm}1.78{\mu}g/dl$ and $2.81{\pm}1.56{\mu}g/dl$, respectively. The difference observed in the mean concentrations between male and female subjects was statistically not significant. 3. The mean values of blood ZPP by HF for male and female subjects were $28.44{\pm}7.11{\mu}g/dl$ and $37.77{\pm}8.04{\mu}g/dl$, respectively. The difference observed in the mean concentrations between male and female subjects was statistically very significant. 4. No statistically significant correlation was found between the levels of blood ZPP and blood lead. 5. The ratio of ZPP and protoporphyrin IX (PPIX) concentration to erythrocyte protoporphyrin (EP, EP=ZPP+PPIX) concentration was 87.4% and 12.6%, respectively. 6. A statistically very significant correlation was found between the ZPP concentrations determined by HPLC and the values by HF (r=0.7565). The ZPP concentraitons quantified by HF were 1.75 times as high as the values obtained by HPLC. 7. The blood ZPP concentrations quantified by HPLC, HF, and spectrofluorometer (SF) from the blood samples obtained from 14 lead-exposed workers and from 16 no-lead exposed adults showed wide variations. The ZPP concentrations by HF were the highest followed by the levels obtained by SF and by HPLC. In the exposed group, no statistically significant difference was found among three methods of quantifying blood ZPP levels. In the no-lead exposed group, however, statistically significant difference was observed among these methods. The ZPP concentrations by HF were about twice as high as those of by HPLC or by SF. Among three methods of quantifying blood ZPP (HPLC, SF and HF), the results revealed significant difference. Therefore it is suggested that objective methods of quantifying blood ZPP and a system of correcting different ZPP levels be developed by the ministry of Labor.

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Study on Characteristics of 7-Zone-Diagnostic System before and after Treatment in the Traffic Accident Patients and Patients with Low Back Pain or Nuchal Pain (경항부.요부 통증환자와 교통사고환자의 치료 전.후에 따른 7구역진단기의 특성연구)

  • Kim, Eu-Gene;Cha, Yun-Yeop
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.23 no.1
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    • pp.225-231
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    • 2009
  • The purpose of this study was to compare the effectiveness of Dangkisoo-san(Dangguixu-san) and Gamihwalhyul-tang(Jiaweihuoxie-tang) herb-medication for the Traffic accident patient group with the effectiveness of common herb-medication for the general patient group by using 7-Zone-Diagnostic System. Two groups were selected from those who took the CP-6000A test in College of Oriental Medical Hospital of Sangji University from March 2007 to January 2008. Mean values of Factor AA on Skin Resistance Variability(SRV) of two groups were compared. The mean values of the deviation between measurement and 50 in pre-examination was higher than those of post-examination. Especially, there were remarkable difference between the mean values of the deviation between measurement and 50 in pre-examination and those of post-examination within the general patient group. When we compare pre-examination with post-examination in each area, 2 areas have remarkable difference within the general patient group. The mean values of positive deviation in pre-examination was higher than those of post-examination within both group. Especially, the TA patient group was remarkable. The other side the mean values of negative deviation in pre-xamination was remarkably higher than those of post-examination within the general patient group. By contraries the mean values of negative deviation in pre-examination was lower than those of post-examination within the TA patient group. These results suggest that Dangkisoo-san(Dangguixu-san) and Gamihwalhyul-tang(Jiaweihuoxie-tang) herb-medication will be less effective for chronic and weak traffic accident patients.

A Study on Reliability of Computerized Cephalometric Analysis System (두부 방사선 규격사진 컴퓨터 분석기의 신뢰도에 관한 연구)

  • Woo-Cheon Kee
    • Journal of Oral Medicine and Pain
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    • v.19 no.2
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    • pp.47-55
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    • 1994
  • To investigate the reliability and reproducibility of the computerized cephalometric analysis system, se compared the differences of the 10 linear and 13 angular measurements by manual works and the use of computerized cephalometric analysis system. We obtained as follows : 1. There was not significant difference between maean values of 22 manual and computerized measurements. 2. There was not significant difference between mean differences of manual and computerized cephalometric analysis data taken by same examiner except facial depth, facial length and posterior facial height. 3. There was not significant difference between mean differences of two trials of the computerized cephalometric analysis data by same examiner in all measurements. 4. There was not significant difference between mean differences of the computerized cephalometric analysis data by two examiners except FMIA and IMPA. According to this result, we guess the use of computerized cephalometric analysis system is useful on diagnosis and treatment planning of othodontic patients.

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A Clinical Study of Changes in Serum Potassium Ion Concentration Before and After Extracorporeal Circulation with Heart-Lung Machine (개심술시 체외순환에 의한 혈청 POTASSIUM 변동에 관한 연구)

  • 고태환
    • Journal of Chest Surgery
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    • v.23 no.5
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    • pp.854-863
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    • 1990
  • Since the open heart surgery was performed, various kinds of problem concerning the extracorporeal circulation[EGG] have been known. The author investigated the changes of serum potassium ion before and after ECC among the 102 patients including 63 adults and 39 children who underwent open heart surgery from April 19S6 to February 1990 in Chung-Ang University Hospital. The mean values of potassium ion before and after ECC were analyzed according to the influencing factors such as priming solution, aortic cross clamping time, the underlying disease, the type of oxygenator and the amount of cardioplegic solution. The results were as follows: l. In the aspect of congenital and acquired heart disease groups, the mean values of serum potassium ion[Mean\ulcornerS.D.] before and after ECC revealed a significant change only in the acquired heart disease group[congenital; 3.87$\pm$0.48mEq /L vs. 4.05$\pm$0.73mEq /L, P>0.05, acquired: 4.40 $\pm$0.98mEq /L vs. 4.11$\pm$0.52mEq /L, P<0.05]. Between the two groups, the changes of the mean values of serum potassium ion before and after ECC were significant[P<0.05]. But all values were within normal limits. 2. In the aspect of the aortic cross clamping time[ACCT], in the groups of less or more than 120 minutes, the mean values of serum potassium ion before and after ECC revealed no significant change[less than 120 min; 3.97+-0.64mEq /L vs. 3.99+0.67mEq /L, P>0.05, more than 120 min; 4.34+0.82mEq /L vs. 4.27+0.62mEq /L, P>0.05], and The changes of mean values of serum potassium ion between the two groups were not significant[P>0.05]. 3. In both membrane and bubble oxygenator groups, the mean values of serum potassium ion before and after ECC did not reveal a significant difference respectively [membrane; 4.74 +1.40mEq /L vs. 4.28+0.3lmEq /L, P>0.05, bubble; 4.02 +0.60mEq /L vs. 4.05 L0.68mEq/L, P>0.05], and no differences between the membrane and bubble oxygenator groups[P >0.05]. 4. In the groups of membrane and bubble oxygenator in the cases of ACCT more than 120 minutes, the mean values of serum potassium ion before and after ECC did not reveal a significant difference respectively[membrane; 4.36$\pm$0.85mEq /L vs. 4.37$\pm$0.26mEq /L, P>0.05, bubble; 4.30 $\pm$0.80mEq/L vs. 4.23$\pm$0.67mEq/L, P>0.05], and no differences between the two groups[P>0.05]. 5. In spite of increased amount of cold potassium cardioplegic solution, the mean values of serum potassium ion before ECC were similar to those of serum potassium ion after ECC[less than 20ml /kg

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HISTOMORPHOMETRIC AND REMOVAL TORQUE VALUES COMPARISION OF ROUGH SURFACE TITANIUM IMPLANTS (임프란트 표면처리 방법에 따른 골유착의 조직계측학적 분석 및 제거회전력 비교 연구)

  • Lee, Sang-Chul;Song, Woo-Sik
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.23 no.5
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    • pp.396-405
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    • 2001
  • Osseointegrated implants are used for the fixation of dental prosthesis with good long-term clinical results. In an attempt to improve the quantity and quality of the bone-implant interface, numerous implant modification have been used. Implants surface modifications have been used such as titanium-plasma sprayed, hydroxyapatite-coating, sandblasted, sandblasted and acid-etched, acid-etched. Rough surface implants have greater implant surface area and enhance the bone-implant interface and improve stabilization. The purpose of present study was to evaluate light microscopic and scanning microscopic examinations and removal torque value of newly developed calcium phosphate blast and acid-etched implant in the femur of rabbits. Titanium plasma sprayed(TPS) implant served as controls. After 12 weeks of healing of the femurs of 12 rabitts, the implant-containing segments of femur were removed on bloc and bone block including sections. Histologic examination and histomorphometric and removal torque values comparision were made for two implants. Obtained results are follows: 1. Newly developed calcium phosphate blasted and acid-etched implants were in close contact with bone under light microscopic examinations. 2. New implants showed mean bone-to implant contact 59.8%, whereas TPS implants showed mean bone-to implant contact 54.5% (statistically no difference p<0.05). 3. New implants showed mean bone density 56.7%, whereas TPS implants showed mean bone density 49.2% (statistically difference p<0.05). 4. New implants demonstrated mean removal torque values 40.5Ncm, whereas the mean removal torque values of TPS implants ranged 39.3Ncm. No statistical differences(p<0.05) were observed between two groups of implants nor was there any difference between the two implants at the clinical level.

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