• Title/Summary/Keyword: statistical diagnosis

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Oral Lichen Planus and Oral Lichenoid Lesion: Diagnosis and Assessment of Direct Immunofluorescence

  • Lee, Kyung-Eun
    • Journal of Oral Medicine and Pain
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    • v.41 no.3
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    • pp.91-98
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    • 2016
  • Purpose: Oral lichen planus (OLP) has generated many discussions and been associated with much controversy for a long time. A reliable diagnosis of OLP has proven challenging and significant disagreements concerning its diagnosis has continued. Therefore, the aim of this study was to apprehend newly proposed diagnostic criteria of OLP and oral lichenoid lesion (OLL) and to evaluate difference of final diagnosis of OLP and OLL in accordance with type of diagnostic criteria. Also, direct immunofluorescence (DIF) was compared to evaluate the value of DIF between two groups. Methods: Fifty-two patients with DIF result were retrospectively reviewed. The selected patients were classified by the modified World Health Organization (WHO) diagnostic criteria of OLP and OLL and by criteria proposed by American Academy of Oral and Maxillofacial Pathology (AAOMP). Results of DIF in OLP and OLL were classified by deposition intensity or pattern of fibrinogen. The classification of fluorescence pattern in each specimen was graded as positive, possibly positive or negative. Results: Patients diagnosed as OLP were a few more when the modified WHO diagnostic criteria were used than when criteria proposed by AAOMP were used. There was no statistical difference of DIF between OLP and OLL by applying the WHO modification criteria or criteria proposed by AAOMP. Conclusions: The final diagnosis of OLP could be changed in accordance with type of diagnostic criteria and difference of DIF between OLP and OLL was not found.

A Study on the Prediction Diagnosis System Improvement by Error Terms and Learning Methodologies Application (오차항과 러닝 기법을 활용한 예측진단 시스템 개선 방안 연구)

  • Kim, Myung Joon;Park, Youngho;Kim, Tai Kyoo;Jung, Jae-Seok
    • Journal of Korean Society for Quality Management
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    • v.47 no.4
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    • pp.783-793
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    • 2019
  • Purpose: The purpose of this study is to apply the machine and deep learning methodology on error terms which are continuously auto-generated on the sensors with specific time period and prove the improvement effects of power generator prediction diagnosis system by comparing detection ability. Methods: The SVM(Support Vector Machine) and MLP(Multi Layer Perception) learning procedures were applied for predicting the target values and sequentially producing the error terms for confirming the detection improvement effects of suggested application. For checking the effectiveness of suggested procedures, several detection methodologies such as Cusum and EWMA were used for the comparison. Results: The statistical analysis result shows that without noticing the sequential trivial changes on current diagnosis system, suggested approach based on the error term diagnosis is sensing the changes in the very early stages. Conclusion: Using pattern of error terms as a diagnosis tool for the safety control process with SVM and MLP learning procedure, unusual symptoms could be detected earlier than current prediction system. By combining the suggested error term management methodology with current process seems to be meaningful for sustainable safety condition by early detecting the symptoms.

Does Hopelessness of Turkish Women Affect their Behavior Regarding Cervical Cancer Prevention and Early Diagnosis?

  • Tasci-Duran, Emel;Unsal-Atan, Senay
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.3
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    • pp.2085-2089
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    • 2013
  • Background: The purpose of this descriptive study was to investigate attitudes women of towards cervical cancer prevention applications and early diagnosis, and whether or not their hopelessness levels had any influence. Materials and Methods: The present study was carried out in Isparta with a descriptive design. A sample of 251 individuals was recruited from January 2011 through May 2011 in the largest tea garden (restaurant-cafe). The data collection tool consisted of two parts: a "Questionnaire Form" identifying women; and the "Beck Hopelessness Scale". Data were analyzed using the Statistical Package for the Social Sciences (SPSS version 16.0 for Windows for the numerical and percentage distribution, average, standard deviation with the ANOVA and Mann-Whitney tests. Results: Some 70.2 % of the woman indicated that they had not taken the Pap test. There was a significant relationship between the hopelessness level and women believing that they could protect themselves from getting cervical cancer (F=10.11 p=0.00). There was a significant relationship between hopelessness levels and believing whether or not early diagnosis tests are deterministic (F=8.781 p=0.00). Conclusion: Our study concluded that the hopelessness level of women had an effect on their thoughts about cervical cancer prevention and early diagnosis.

An analysis of determining factor for frozen shoulder patients diagnosis and treatment of physical therapists (동결견 환자에 대한 물리치료사의 진단 및 치료방법 결정기준)

  • Oh, Young-Taek;Kim, Ki-Won;Kwon, Hyuk-Cheol
    • Journal of Korean Physical Therapy Science
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    • v.5 no.4
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    • pp.777-784
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    • 1998
  • The purpose of this study was to determine the diagnosis and treatment patterns for frozen shoulder patients. It was used Delphi survey techniques and the subjects were 35 expect physical therapists who agreed participated in the study. The data were analyzed by the x2-test at 0.05 level of statistical significance. The results were as follows : 1. In accordance with open ended question, 11 diagnosis and 14 treatment are collected in the first investigation. 2. In accordance with close ended question, they were selected 5 diagnosis and 5 treatments criteria from the results of the first replied questionnaire. 3. Finally, the third close ended questionnaire, they were selected 3 main driteria of the diagnosis and treatments from the results of the second investigation. The physical therapists prefer to 1) History 2) ROM test 3) Palpation & Inspection in the diagnostic field, and 1) EST and Convex-Concave rule 2) Codman's exercise and MFR 3) Deep friction massage in the treatment field.

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Effect of Organizational Diagnosis, Job Satisfaction and Organizational Commitment of a Single-grade Korean Medicine Hospital Using Six-Box Model (Six-Box Model을 이용한 일개대학 부속 한방병원의 조직진단과 직무만족, 조직몰입에 미치는 영향)

  • Ahn, Hwa-Young;Kwon, Sung-Bok
    • The Korean Journal of Health Service Management
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    • v.12 no.1
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    • pp.35-46
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    • 2018
  • Objectives : The purpose of this study was to present basic data on organizational changes in a Korean medicine hospital by performing organizational diagnosis and examining the job satisfaction and organizational commitment of the hospital. Methods : The subjects were a total of 218 employees in four Korean medicine hospitals, and data were collected from 1st to 25th September 2015. Using SPSS 21.0, frequency analysis, technical statistical analysis, t-test, ANOVA, Pearson's correlation analysis, and multiple regression analysis were performed. Results : The Korean medicine hospital tended to value relationships, the rewards for and attitudes towards change were low. The number of participants in this study with higher organizational diagnosis scores was high for job satisfaction and organizational commitment, and there was a strong positive correlation. It was seen that rewards, relationship, helpful mechanisms, and leadership among organizational diagnosis areas had an effect on job satisfaction, and helpful mechanisms, purposes, and leadership had an effect on organizational commitment. Conclusions : These findings will be useful because policies, research, and education are needed to facilitate organizational changes in Korean medicine hospitals.

The Development of a Fault Diagnosis Model based on the Parameter Estimations of Partial Least Square Models (부분최소제곱법 모델의 파라미터 추정을 이용한 화학공정의 이상진단 모델 개발)

  • Lee, Kwang Oh;Lee, Chang Jun
    • Journal of the Korean Society of Safety
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    • v.34 no.4
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    • pp.59-67
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    • 2019
  • Since it is really hard to construct process models based on prior process knowledges, various statistical approaches have been employed to build fault diagnosis models. However, the crucial drawback of these approaches is that the solutions may vary according to the fault magnitude, even if the same fault occurs. In this study, the parameter monitoring approach is suggested. When a fault occurs in a chemical process, this leads to trigger the change of a process model and the monitoring parameters of process models is able to provide the efficient fault diagnosis model. A few important variables are selected and their predictive models are constructed by partial least square (PLS) method. The Euclidean norms of parameters of PLS models are estimated and a fault diagnosis can be performed as comparing with parameters of PLS models based on normal operational conditions. To improve the monitoring performance, cumulative summation (CUSUM) control chart is employed and the changes of model parameters are recorded to identify the type of an unknown fault. To verify the efficacy of the proposed model, Tennessee Eastman (TE) process is tested and this model can be easily applied to other complex processes.

The Potential of Yangdorak Diagnosis Application of Gallstone (담석증에 대한 양도락 진단의 활용 가능성)

  • Han, Gyu Eon
    • The Journal of Korean Medicine
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    • v.45 no.1
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    • pp.139-149
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    • 2024
  • Objectives: The aim of the study was to investigate the potential of Yangdorak diagnosis application against gallstone scanned by Ultrasound diagnosis. Method: For this aim, among 97 patients who had visited Julip Korean Medicine Clinic from July 2016 to June 2023, 30 patients with no gallstone as a control group and 67 patients with gallstone and diagnosed by ultrasonography, were subjected to Yangdorak diagnosis. Then, the changes in Gallbladder Meridian (GB) value as F5 AVE(average of left and right GB value) by Yangdorak were comparatively analyzed between gallstone and non-gallstone groups and statistical significance was evaluated by Tukey's multiple comparison test using Prism software. Results: After all subjects were evaluated by the Yangdorak and ultrasonography to assess the potential of the Yangdorak diagnosis for gallstone, it was noteworthy that the Yangdorak values relevant to F5 AVE of female gallstone group(N=36) were significantly (p<0.001) decreased compared to the control group (N=30), while there was no significance in male gallstone group(N=31). Also, it was recognized significant difference between male and female groups. Conclusion: Based on these results, if the Yangdorak value can be estimated from a decrease with clinical symptom in female patient, it is recommended to follow up the ultrasonography test for diagnosing the gallstone.

Fault diagnosis of wafer transfer robot based on time domain statistics (시간 영역 통계 기반 웨이퍼 이송 로봇의 고장 진단)

  • Hyejin Kim;Subin Hong;Youngdae Lee;Arum Park
    • The Journal of the Convergence on Culture Technology
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    • v.10 no.4
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    • pp.663-668
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    • 2024
  • This paper applies statistical analysis methods in the time domain to the fault diagnosis of wafer transfer robots, and proposes a methodology to discern the critical characteristics of vibration and torque signals. Subsequently, principal component analysis (PCA) is applied to diminish the data's dimensionality, followed by the development of a fault diagnosis algorithm utilizing Euclidean distance and Hotelling's T-square statistics. The algorithm establishes decision boundaries to categorize failure states based on the observed data. Our findings indicate that data classification incorporating velocity parameters enhances diagnostic accuracy. This approach serves to enhance the precision and efficacy of fault diagnosis.

Analytic Study of Diagnostic Validity by the Measure of Cold-Heat & Deficiency-Excess for Oriental Medical Examination (한방건강검진에서 한열허실 변증 진단의 타당성에 관한 연구)

  • Kwon, O-Sun;Kim, Jung-Eun;Lee, Jae-Wang;Seo, Chang-Woon;Han, Hyun-Young;Hong, Sang-Hun
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.23 no.1
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    • pp.180-185
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    • 2009
  • We are developing the methods for the objective and systematic diagnosis, but in actuality the relativity between a diagnosis of Korean medical doctor to a symptom of patients and the conformity to the expression of the Korean medical diagnostic mechanism is short of the statistical data. so, the questionnaire of Cold-Heat & Deficiency-Excess and a diagnosis of Korean medical doctor and a result of the Korean medical diagnostic mechanism, through the relationship of those, we have offered the objective data for diagnostic validity. The study group was 750 volunteers who diagnosed by Cold-Heat & Deficiency-Excess, out of 1475 volunteers who participated in Korean-Western medical examination. We compared the results of the questionnaires for Cold-Heat & Deficiency-Excess patternization through the questionnaire with a diagnosis of Korean medical doctor. we also studied the diagnostic validity for the item of the questionnaire by statistics analysis. It is proper that 9 questions of 16 questions for the Cold, 6 questions of 14 questions for the Heat, 13 questions of 14 questions for the Deficiency, 6 questions of 9 questions for the Excess, and there is close correlation between the questionnaire to the diagnosis. The difference between the questionnaire score is meaningful(p=0.000), this conforms to the diagnosis of the Korean medical doctor, so the questionnaire have the validity. The result of the questionnaire of Cold-Heat & Deficiency-Excess conform to a diagnosis of Korean medical doctor, it carries an important meaning by the measure of diagnosis, and it is necessary for further study for the significance of the medical diagnostic mechanism.

Cytopathologic Diagnosis of Pulmonary Diseases by Transthoracic Fine Needle Aspiration Biopsy (경흉세침흡인 생검에 의한 폐질환의 세포병리학적 진단)

  • Park, In-Ae;Ham, Eui-Keun
    • The Korean Journal of Cytopathology
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    • v.1 no.1
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    • pp.27-35
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    • 1990
  • The authors report series of 360 cases of transthoracic fine-needle aspiration cytology (TFNA) from Oct. 1982, through Aug. 1986 at the Seoul National University Hospital. A diagnosis of neoplastic lesion was established in 50.3% of the cases. A non-neoplastic diagnosis was made in 38.5%, nondiagnostic one in 6.5% and inadequate one in 4.7% of the total. Statistical findings on cytological diagnoses were as follows. Specificity was 100% ; sensitivity, 92% ; predictive value for positive, 1.0 ; predictive value for negative, 0.9 ; concordance rate, 84.2% ; diagnostic accuracy in non-neoplastic lesion, 65.4%, and typing accuracy in malignant tumor, 0.77.

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