• Title/Summary/Keyword: statistical process control

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The Effects of Sochungyong-tang plus Okbyeong-san Extract on Allergic Rhinitis of Rats (소청룡탕합옥병풍산(小靑龍湯合玉屛風散)이 백서(白鼠)의 알레르기 비염(鼻炎)에 미치는 효과)

  • Kim, Bum-Rak;Kim, Kyung-Jun
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.19 no.2
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    • pp.50-58
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    • 2006
  • Background and Objectives : Although the incidence of allergic rhinitis has increased specific therapeutics with a certain medicine is not well developed yet. In therapeutics of allergic rhinitis, limited medicines just have been used in the clinin. Sochungyong-tang has been a widespread medicine for allergic rhinitis. However, okbyeongpung-san has been taken for raising immunity. In medical treatment of allergic rhinitis, raising immunity is a necessary part of the process. In this reason, this study aimed to find out therapeutic effects of combination of sochungyoung-tang and okbyeongpung-san extract on allergic rhinintis of nasal tissue in rats. Materials and Methods : The Sprague-Dawley male rats, about 200g of body weight, were divided into three groups: the normal group, the control groups, and the sample groups. With the Levine and Vaz method, the allergic reaction was induced with ovalbumin as antigen in the intraperitoneal route. Rats of the sample groups were treated with 2cc of sochungyoung-tang plus okbyeongpung-san extract once a day for 28days. I observed historical changes in nasal tissue. I also found changes in the segment of lympocyte and neutrophil of Leukocyte and erythrocyte. I used the statistical methods of post Hoc test(p<0.05) Results : The increase of the goblet cell and mucous secretion in the sample groups was rare when compared to the control groups. Effects of sochungyoung-tang plus okbyeongpung-san extract on the liver function were also studied in rats. Treatment of sochungyoung-tang plus okbyeongpung-san extract did not affect GOT and GPT. The number of lymphocyte was decreased, while the number of erythrocyte was increased in sample groups. Conclusion : This study shows that sochungyoung-tang plus okbyeongpung-san plus okbyeongpung-san extract has considerable effects on allergic rhinitis.

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The effects of biomaterials in growing medium on the response of Zelkova serrata in a containerized production system

  • Youn, Woo-Bin;Han, Si-Ho;Seo, Jeong-Min;Aung, Aung;Dao, Huong Thi Thuy;An, Ji-Young;Park, Byung-Bae;Cho, Min-Seok
    • Korean Journal of Agricultural Science
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    • v.46 no.4
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    • pp.781-790
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    • 2019
  • Changes in the physical and chemical properties of soil materials during the nursing process have a great influence on the quality of containerized seedlings and on growth and survival after planting. In this study, the effect of biomaterials and their mixed ratios on the growth of Zelkova serrata seedlings in a containerized seedling production system was investigated. Mushroom sawdust, pine bark, and carbonized rice husk were used as biomaterials. The mixed ratios were 10% and 20% volume ratio of the growing medium volume, including the untreated controls. There was no significant difference in the height growth of the Zelkova serrata seedlings according to the biomaterials. The root collar diameter was the highest with the 20% carbonized rice husk and the lowest with the mushroom sawdust. The difference between the highest quality index and the lowest quality index was 30% in the order of the carbonized rice husk, pine bark, control, and mushroom sawdust, but there was no statistical significance. In this study, if the growing medium mixed with biomaterials does not reduce the seedling growth compared with the control, it is considered that the biomaterial can replace a part of the growing media. Therefore, the results show that some of the growing media can be replaced with carbonized rice husk or pine bark when producing Zelkova serrata seedlings.

A Prediction Model for Coating Thickness Based on PLS Model and Variable Selection (부분최소자승법과 변수선택을 이용한 코팅두께 예측모델 개발)

  • Lee, Hye-Seon;Lee, Young-Rok;Jun, Chi-Hyuck;Hong, Jae-Hwa
    • The Korean Journal of Applied Statistics
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    • v.23 no.2
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    • pp.295-304
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    • 2010
  • Coating thickness is one of target variables in quality control process in steel industry. To predict coating thickness and to control quality of anti-fingerprint steel coils, ultraviolet-visible spectra are measured. We propose a variable-interval selection procedure based on the variable importance in projection in partial least square model. Using the proposed variable interval selection method, prediction performance gets better in the reduced model than the full model with full spectra absorbance. It is also shown that the first differencing as a data preprocessing technique does work well for the prediction of coating thickness.

Effects of Application of Social Marketing Theory and the Health Belief Model in Promoting Cervical Cancer Screening among Targeted Women in Sisaket Province, Thailand

  • Wichachai, Suparp;Songserm, Nopparat;Akakul, Theerawut;Kuasiri, Chanapong
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.7
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    • pp.3505-3510
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    • 2016
  • Cervical cancer is a major public health problem in Thailand, being ranked second only to breast cancer. Thai women have been reported to have a low rate of cervical cancer screening (27.7% of the 80% goal of WHO). We therefore aimed to apply the social marketing theory and health belief model in promoting cervical cancer screening in Kanthararom District, Sisaket Province. A total of 92 from 974 targeted women aged 30-60 years were randomly divided into two groups. The experimental group underwent application of social marketing theory and a health belief model program promoting cervical cancer screening while the control group received normal services. Two research tools were used: (1) application of social marketing theory and health belief model program and (2) questionnaire used to evaluate perceptions of cervical cancer. Descriptive and inferential statistics including paired sample t-test and independent t-test were used to analyze the data. After the program had been used, the mean score of perception of cervical cancer of experimental group was at a higher level (${\bar{x}}=4.09$; S.D.=0.30), than in the control group (${\bar{x}}=3.82$; S.D.=0.20) with statistical significance (p<0.001). This research demonstrated an appropriate communication process in behavioral modification to prevent cervical cancer. It can be recommended that this program featuring social marketing and the health belief model be used to promote cervical cancer screening in targeted women and it can be promoted as a guideline for other health services, especially in health promotion and disease prevention.

Light-emitting diode assessment of dentinal defects: the role of presumed extraction forces

  • Coelho, Marcelo Santos;Card, Steven J.;Tawil, Peter Z.
    • Restorative Dentistry and Endodontics
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    • v.42 no.3
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    • pp.232-239
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    • 2017
  • Objectives: The evaluation of iatrogenic dentinal defects in extracted teeth may be influenced by extraction forces and prolonged dry times. The purpose of this study was to compare the presence of dentinal defects in freshly extracted, periodontally compromised teeth with those in a group of teeth with uncontrolled extraction forces and storage time. Materials and Methods: The experimental group consisted of eighteen roots obtained from teeth extracted due to periodontal reasons with class II or III mobility. They were kept in saline and sectioned within 1 hour following extraction. The control group consisted of matched root types obtained from an anonymous tooth collection, consistent with previous dentinal defect studies. The slices were obtained at 3, 6, and 9 mm from the apex. The imaging process exposed all specimens to no more than 60 seconds of dry time. The ${\times}12.8$ magnification was used for the 9 mm slices and ${\times}19.2$ magnification for the 3 mm and 6 mm slices under light-emitting diode (LED) transillumination. The root canal spaces and periodontal tissues were masked to minimize extraneous factors that might influence the evaluators. Chi-square test was used for statistical analysis. Results: Dentinal defects were detected in 17% of the experimental group teeth, compared to 61% of control teeth (p = 0.015). Conclusions: LED transillumination assessment of freshly extracted roots with class II or III mobility showed smaller number of dentinal defects than roots with uncontrolled storage time and extraction forces. The use of freshly extracted roots with mobility should be considered for future dental defect assessment studies.

A Study on the Self-care of the Menopausal Symptoms of Middle-Aged Women (중년 여성의 갱년기 증상과 자기건강관리 (Self-Care)와의 관련성 조사연구)

  • 김희은;김초강
    • Korean Journal of Health Education and Promotion
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    • v.10 no.1
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    • pp.72-86
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    • 1993
  • The purpose of this study is to find out the menopausal symptom of middle-aged women and their self-care on it. This study also intended to awaken the relationship of the menopausal symptom and self-care and to provide basic data on the health education of middle-aged women. For this purpose, the study (1) identified respondents background variables, (2) found menopausal symptom and the state of self-care, (3) analyzed relationship between general character, menopausal symptom, and self-care, (4) analyzed the relationship of menopausal symptom and self-care for 543 random sampled women in City of Incheon. The questionnaire consisted of 25 questions on the menopausal symptom interview by Neugarton translated by Jung Hae Ran(1985) and questions of the self-care inventory by Orem reconstructed by Sung Moon Hee(1988). The data were analyzed by using frequency, percentage, t-test, X²-test, pearson's correlation coefficient with SPSS statistical package. The results of this study could be summed up as follows ; 1. The Degree of menopausal symptom were graded from 25 to 75. (x 40.85, s. d. 8. 6.) 2. The test of relationship between the individual background and the menopausal symptom revealed that there seemed to be statistically significant correlation between the sexual life, life-content, the level of education, menstruation(p<0.000). 3. In the test of relationship between the individual background and the self-care process, (1) in case of insight of symptom, there seemed to be statistically significant correlation between the self-content(r=0.1463), sexual life(r= -0.1376), menstruation(r=0.1561), and artificial abortion(r=0.1577), (p<0.001), (2) In case of self-health control, there seemed to be statistical correlation between the states of menstruation and the number of induced abortion. (3) In case of self-health decision, there seemed to be statistically significant correlation between the number of visiting hospitals or clinics and the level of education(r=0.106), the self-content(r=0.1235), induced abortion(r=0.1343) (p<0.0000). And also individual background can show the 40.21 percent of self-health maintenance. 4. The relationship between menopausal symptom and self-care has a significant meaning to the insight of symptom, self-health decision according to the groups of menopausal symptom(p<0.000), but it doesn't have any meaning to self-health control. And self-health maintenance can manifest the 19.88 percent of menopausal symptom.

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Methodology for Processing GPS-based Bicycle Speed Data for Monitoring Bicycle Traffic (자전거 모니터링을 위한 자료처리 프로세스 개발 및 응용 - GPS기반 자전거 속도자료를 중심으로)

  • Rim, Heesub;Joo, Shinhye;Oh, Cheol
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.13 no.3
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    • pp.10-24
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    • 2014
  • Bicycle is a useful transportation mode that is healthy, emission-free, and environmentally compatible. Although large efforts have been made to promote the use of bicycling to date, there still exist various hurdles and limitations. One of the key issues to increase bicycling is how to gather bicycle-related data from the field and to generate valuable information for both users and operations agencies. This study proposes a method to process bicycle trajectory data which is obtained from tracing global positioning systems(GPS) equipped bicycle, which is defined as the probe bicycle. The proposed method is based on the concept of statistical quality control of data. In addition, a data collection and processing scenario in support of public bicycle system is presented. The outcomes of this study would be valuable fundamentals for developing bicycle traffic information systems that is a part of future intelligent transportation systems(ITS).

A Study on the Effect of Erycibae Caulis and Corydalis Tuber Pharmacopuncture on a Mouse Model with Collagen Induced Rheumatoid Arthritis (정공등현호색(丁公藤玄胡索) 약침(藥鍼)이 류마티스 관절염 생쥐 모델에 미치는 영향)

  • Kim, Hyun Ji;Jeon, Ju Hyun;Kim, Young Il
    • Journal of Acupuncture Research
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    • v.33 no.2
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    • pp.21-34
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    • 2016
  • Objectives : The aim of the present study is to examine the effect and mechanism of Erycibae Caulis and Corydalis Tuber Pharmacopuncture (ECP) on a mouse model with collagen induced rheumatoid arthritis (CIA). Methods : We evaluated the Aspartate aminotransferase (AST), Alanine aminotransferase (ALT), Creatinine, and the Blood urea nitrogen (BUN) of serum to examine the safety of this study. In vivo, we compared the results of the non-treated group, the normal saline pharmacopuncture treated control group, the indomethacin treated group and the ECP group. We evaluated rheumatoid arthritis manifestation and the Rheumatoid Arthritis Index (AI). Also, immune cells in blood affected by ECP were evaluated by calculating the level of white blood cells (WBC), neutrophil, lympocytes and monocytes. Next, the level of Immunoglobulin M (IgM), Immunoglobulin G (IgG), Interleukin (IL)-$1{\beta}$, IL-6, IL-17, Tumor Necrosis Factor (TNF)-${\alpha}$ and Granulocyte-macrophage Stimulating Factor (GM-CSF)in serum were measured. We examined the imaging of cartilage degeneration using micro CT-arthrography of the hind paw. Additionally, we examined the effects of reducing bone volume (BV) ratio and bone surface/bone volume (BS/BV) ratio with 3D Micro-CT. Finally, we did a histopathologic examination analysis. Results : The absence of liver and kidney toxicity was evident. In vivo, edema of the joints of the ECP group decreased greatly in macroscopic observation. AI measurement of the ECP group also decreased significantly compared to the control group. The level of WBC, neutrophil, lympocytes, and monocytes in the blood decreased but there was no statistical significance of this data. IgM of the ECP group decreased significantly compared to the control group. IL-$1{\beta}$, IL-6, TNF-${\alpha}$, and GM-CSF production of the ECP group decreased significantly compared to the control group. As a result of examining joint condition with 3D micro CT, deformation and destruction of the joint was shown to have decreased. Bone density of ECP group increased at a statistically significant level compared to the control group. Degree of joint inflammation of ECP group decreased significantly compared to the control group. After H&E and M-T staining, infiltration of immune cells, subsidence of the cartilage, damage to the synovial cells and joint erosion decreased. Conclusion : This study showed that ECP hindered the process of rheumatoid arthritis and protected joints and cartilage.

The effect of polyphosphate on exophytic bone formation (무기인산염이 외방성 수직골 형성에 미치는 영향)

  • Lee, Jean;Park, Joon-Bong;Herr, Yeek;Chung, Jong-Hyuk;Kwon, Young-Hyuk
    • Journal of Periodontal and Implant Science
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    • v.38 no.1
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    • pp.59-66
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    • 2008
  • Purpose: It has been shown that the inorganic polyphosphate is effective for the regeneration of bones through the preliminary animal test of rabbits. The most effective concentration of the polyphosphate, however, is not known yet. Moreover, the effectiveness of carriers inside human body is not confirmed.. Materials and Methods: In this study, we examined the effect of the concentration of the inorganic polyphosphate on the process of the bone regeneration using the 6 weeks old rabbits with the weight of 2.0 kg in average. We performed the experiment using TR-ePTFE membrane(membrane) filled with collagen immersed in 4%, 8% of inorganic polyphosphate, respectively, following removal of the proper sized cortical bones from the rabbit calvaria. The experimental results were compared with the one of the following four groups: The negative control group for membrane only, the positive control group for membrane filled with collagen, the first experimental group for membrane filled with collagen immersed in 4% of inorganic polyphosphate, and the second experimental group for membrane filled with collagen immerse in 8% of inorganic polyphosphate. The fragments of the tissue with membrane obtained from each group of the sacrificed rabbits for 8 or 16 weeks sustained after surgery were then prestained by the Hematoxylin-Eosin stain and coated by resin to form non-decalcified specimens for the histologic examination and analysis. New bone formation was assessed by histomorphometric and statistical analysis. Results: 1. All groups have shown better bone regeneration at 16weeks than 8weeks. 2. Negative control group has shown more bone regeneration relative to the other groups at 8 and 16 weeks. 3. All experimental groups have shown better bone regeneration relative to positive control group. 4. At 16 weeks, the first experimental group has shown more bone regeneration compared to the second experimental group. Exophytic bone formation is not good at the first and the second experimental groups compared with negative control group. But, the use of 4% inorganic polyphosphate was more effective to bone formation than the use of 8% inorganic polyphosphate. Conclusion: With above results, it is suggested the use of inorganic polyphosphate with vehicle under TR-ePTFE membrane.

2007 Korean National Growth Charts: review of developmental process and an outlook (2007 한국 소아 청소년 성장도표 : 개발 과정과 전망)

  • Moon, Jin Soo;Lee, Soon Young;Nam, Chung Mo;Choi, Joong-Myung;Choe, Bong-Keun;Seo, Jeong-Wan;Oh, Kyungwon;Jang, Myoung-Jin;Hwang, Seung-Sik;Yoo, Myung Hwan;Kim, Young Taek;Lee, Chong Guk
    • Clinical and Experimental Pediatrics
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    • v.51 no.1
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    • pp.1-25
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    • 2008
  • Purpose : Since 1967, The Korean Pediatric Society and Korean Government have developed Korean Growth Standards every 10 years. Last version was published in 1998. During past 40 years, Korean Growth Standards were mainly descriptive charts without any systematic nor statistical standardization. With the global epidemic of obesity, many authorities such as World Health Organization (WHO) and United States' Centers for Disease Control (CDC) have been changed their principles of growth charts to cope with the situations like ours. This article summarizes and reviews the whole developmental process of new 2007 Korean Growth Charts with discussion. Methods : With the initiative of Division of Chronic Disease Surveillance in Korea Centers for Disease Control and Prevention, we have performed new national survey for the development of new Standards in 2005 and identified marked increase of childhood obesity and plateau of secular increment of final height in late adolescents. We have developed new Growth Standards via adapting several innovative methods, including standardization of all available raw data, which were acquired in 1997 and 2005 national survey and full application of LMS method. Results : We could get new standardized charts; weight-for-age, length/height-for-age, weight-for-height, head circumference-for-age and BMI-for-age. Other non-standardized charts based on 2005 survey data were also published; waist circumference-for-age, mid-arm circumference-for-age, chest circumference-for-age and skinfold-for-age. Clinical guideline was also developed. Conclusion : Developmental process and results of new Korean Growth Charts are comparable with other internationally well-known Growth Standards, WHO 2006 Growth Standards and CDC Growth Charts. 2007 Korean Growth Charts are relevant especially in Korea and Korean ethnic groups.