• 제목/요약/키워드: Diagnostic study

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장애 아동·청소년 독서역량 진단도구 개발을 위한 구성요인 연구 (Research on Components for Developing a Reading Competency Diagnostic Tool for Children and Adolescents with Disabilities)

  • 김수경;최승숙;황정현;윤성은
    • 한국도서관정보학회지
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    • 제54권3호
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    • pp.129-163
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    • 2023
  • 본 연구의 목적은 장애 아동·청소년의 독서역량 강화를 위해 독서역량과 독서역량 개념에 따른 구성요인을 파악하고 진단 문항을 개발하여 장애 아동·청소년의 독서역량 진단도구 개발의 기초자료를 제공하기 위함이다. 연구 방법은 문헌연구, 브레인스토밍, 델파이조사 및 예비조사를 실시한다. 연구 결과 독서역량 진단도구 구성요인은 크게 2개 영역(정의적 영역, 환경적 영역), 4개 범주(독서동기, 독서태도, 인적 환경, 물적 환경), 4개 범주별 총 13개 구성요인(독서 흥미, 독서가치, 독서인정, 독서기대, 독서습관, 독서효능감, 독서몰입, 독서불안(회피), 가정/가족, 학교/교사, 또래, 독서환경, 매체환경)을 도출하고, 그에 따른 문항을 개발하였다. 이 결과를 토대로 장애 아동·청소년 독서역량 진단도구 개발 방향을 제시하였다.

Comparison of diagnostic performances of slow-pull suction and standard suction in endoscopic ultrasound-guided fine needle biopsy for gastrointestinal subepithelial tumors

  • Joon Seop Lee;Chang Min Cho;Yong Hwan Kwon;An Na Seo;Han Ik Bae;Man-Hoon Han
    • Clinical Endoscopy
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    • 제55권5호
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    • pp.637-644
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    • 2022
  • Background/Aims: Endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) is integral to the diagnosis of gastrointestinal (GI) subepithelial tumors (SETs). The impact of different EUS-FNB tissue sampling techniques on specimen adequacy and diagnostic accuracy in SETs has not been fully evaluated. This study aimed to compare the diagnostic outcomes of slow-pull (SP) and standard suction (SS) in patients with GI SETs. Methods: In this retrospective comparative study, 54 patients were enrolled. Medical records were reviewed for location and size of the target lesion, FNB needle type/size, technical order, specimen adequacy, diagnostic yield, and adverse events. The acquisition rate of adequate specimens and diagnostic accuracy were compared according to EUS-FNB techniques. Results: The mean lesion size was 42.6±36.4 mm, and most patients were diagnosed with GI stromal tumor (75.9%). The overall diagnostic accuracies of the SP and SS techniques were 83.3% and 81.5%, respectively (p=0.800). The rates of obtaining adequate core tissue were 79.6% and 75.9%, respectively (p=0.799). No significant clinical factors affected the rate of obtaining adequate core tissue, including lesion location and size, FNB needle size, and final diagnosis. Conclusions: SP and SS had comparable diagnostic accuracies and adequate core tissue acquisition for GI SETs via EUS-FNB.

실시간 중합효소 연쇄반응을 활용한 생물작용제 검증시스템 연구 (A Study on the Validation system of Detection for Biological Agents Using Real-Time PCR)

  • 차영길;구본우;김성주;김남일;박한오
    • 한국군사과학기술학회지
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    • 제20권5호
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    • pp.726-732
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    • 2017
  • Bacillus anthracis, Vibrio cholerae, Variola virus and Shigella dysenteriae are classified as category A and B biological weapons. In this study suggest that 4 genes of Bacillus anthracis, 2 genes of Vibrio cholerae, 1 gene of Variola virus and 1 gene of Shigella dysenteriae were detective 50~500 fg of target DNA per reaction using real-time PCR based assay. Also analytical specificity did not show any cross-reactivity with other related bacteria. Reliable and one reaction could be effective early diagnostic and treatment for detection of unknown samples.

3D체형측정기와 수동측정 방법간의 사상체질별 ${\cdot}$ 성별 진단정확률 비교연구 (Diagnosis Accuracy Rate Comparative Study of Each Sasang Constitutions and Sex Distinction by Body Measurement Method between 3D Body Measuring Instrument and Hand-operating)

  • 권석동;설유경;이의주;김규곤;김종원
    • 사상체질의학회지
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    • 제19권1호
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    • pp.60-77
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    • 2007
  • 1. Objectives This is the comparative study with hand-operated measurement method and Automatic measurement method, in order to convert the automatic measurement method. 2. Methods We measured the body of patients(hand-operated Width 5 Places and hand-operated circumference 8 place,Automatic Width 5 and automatic circumference 8 place by 3D body measuring instrument) and analyzed the anthropometric data divding into sex&age. 362 patient's data are used in the analysis. 3. Results and Conclusions 1) 1th circumference variable which standing was not a sasang constitutional difference. 2) Diagnostic accuracy rate of the body measurement was 50-80%. 3) Diagnostic accuracy rate of man is higher than Diagnostic accuracy rate of women 4) Diagnostic accuracy rate of Automatic & hand-operated measuring was not a big difference.

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Reliability of Stool Antigen Tests: Investigation of the Diagnostic Value of a New Immunochromatographic Helicobacter pylori Approach in Dyspeptic Patients

  • Korkmaz, Huseyin;Findik, Duygu;Ugurluoglu, Ceyha;Terzi, Yuksel
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권2호
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    • pp.657-660
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    • 2015
  • Background: A diagnosis of H. pylori infection can be made by invasive or non-invasive methods. Several noninvasive diagnostic tests based on the detection of H. pylori stool antigen (HpSA) have been developed. The Genx H. pylori stool antigen card test is a new rapid, non-invasive test that is based on monoclonal immunochromatographic assay. The aim of this study was to determine its sensitivity, specificity, and diagnostic accuracy for diagnosing H. pylori infection in adult patients. Materials and Methods: A total of 162 patients were included in the study. A gastric biopsy was collected for histopathology and rapid urease testing. Stool specimens for HpSA testing were also collected. Patients were considered H. pylori positive if two invasive tests (histological and rapid urease tests) were positive. Results: Using the reference test, 50.6% of the samples were positive for H. pylori infection. The Genx H. pylori antigen test was positive in 19.7% of patients. The sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy of the Genx H. pylori antigen test were 51.6%, 96.0%, 88.8%, 76.1%, and 79.0%, respectively. Conclusions: The Genx H. pylori stool antigen card test is a new non-invasive method that is fast and simple to perform but provides less reliable results.

초음파검사실 감염관리 인식에 대한 연구 (A Study on the Perception of Infection Control in Ultrasound Diagnostic Room)

  • 안현
    • 대한방사선기술학회지:방사선기술과학
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    • 제43권5호
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    • pp.367-374
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    • 2020
  • The purpose of this study is to understand the infection prevention system and infection management perception of Ultrasound diagnostic room in medical institutions by sonographer's in general practitioner, semi and general hospitals. As a research method, a statistical analysis was conducted by surveying a total of 20 items in four category to determine the infection perception of sonographer's according to gender, age, working institution, and working period. As a result of infection awareness, males were in the ultrasound gel management category, women were in the transducer management category, all age groups were in the transducer management system category, and the General Practitioner, semi and general hospitals. were in the transducer management system category, and general hospitals showed a high degree of infection awareness in the category of disinfection and sterilization, and in the category of transducer management in the entire working period. In the results of the analysis of the correlation between the sub-factors of the perception of infection control in the Ultrasound diagnostic room the degree of correlation between each category showed a middle degree correlation(r>0.5) and a significant difference by category(p<.01). In conclusion, the prevention of infection in the ultrasound diagnostic room, which sonographer's firms think, was found to be the most efficient ultrasound diagnostic room infection control to implement transducer and gel management in accordance with the principles of disinfection and sterilization.

공과대학 신입생의 자기주도학습준비도와 수학기초학력평가성적 및 대학수학학업성취도 관계 연구 (A Study of Relationship between SDLR, the Score of Mathematics Diagnostic Assesment and Achievement in College Mathematics of Engineering Students)

  • 이경희;권혁홍
    • 공학교육연구
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    • 제16권1호
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    • pp.54-63
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    • 2013
  • This study aims to investigate relationships among self-directed learning readiness [SDLR], prerequisite mathematics test score and achievement level in college mathematics. For this purpose, the adjusted SDLRS (self-directed learning readiness scale) of Guglielmino's model, the score of mathematics diagnostic assesment and first semester college mathematics score among 424 freshmen students of engineering department of D university in 2011 were used and analyzed. Research results are as follows: Firstly, freshmen of engineering department had average level of SDLR, though they showed relative low level of self-direction, passion and time control ability. Secondly, considering SDLR with the mathematics diagnostic assesment score (3 groups: high, middle, low), there were no statistically significant differences. Thirdly, concerning SDLR according to the achievement level in college mathematics, a group which acquired good achievement showed higher level of SDLR compared with middle or lowachievement group. Differences among three groups were statistically significant. Lastly, there were affirmative relationships between SDLR, mathematics diagnostic assesment score and achievement in college mathematics. Furthermore, mathematics diagnostic assesment score and achievement level in college mathematics were found to be the most closely related. Based on the results, we suggest strategies to elevate SDLR of engineering department students and improve their achievement in college mathematics.

랜덤포레스트의 크기 결정을 위한 간편 진단통계량 (A simple diagnostic statistic for determining the size of random forest)

  • 박철용
    • Journal of the Korean Data and Information Science Society
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    • 제27권4호
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    • pp.855-863
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    • 2016
  • 이 연구에서는 RF (random forest)의 크기 결정을 위한 간편 진단통계량을 제안한다. 이 방법은 현재까지 생성된 의사결정나무의 1등과 2등인 집단이 무한히 생성된 의사결정나무에서 차지하는 승리표차인 MV (margin of victory)에 근거한다. 따라서 MV가 음수이면 현재의 RF와 무한 RF 사이에 괴리가 생기는 것을 의미한다. 이 연구에서 제안하는 방법은 -MV가 고정된 작은 양수 (예를 들면 0.03)보다 큰 개체의 비율에 근거한다. 이 방법에 의한 적절한 통계량 도출과 함께 이 통계량의 이론적인 분포를 유도한다. 또한 최근에 제안된 진단통계량과 성능을 비교하는 모의실험을 수행한다.

A Comparative Study of Two Diagnostic Methods Based on the Switching Voltage Pattern for IGBT Open-Circuit Faults in Voltage-Source Inverters

  • Wang, Yuxi;Li, Zhan;Xu, Minghui;Ma, Hao
    • Journal of Power Electronics
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    • 제16권3호
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    • pp.1087-1096
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    • 2016
  • This paper reports an investigation conducted on two diagnostic methods based on the switching voltage pattern of IGBT open-circuit faults in voltage-source inverters (VSIs). One method was based on the bridge arm pole voltage, and the other was based on bridge arm line voltage. With an additional simple circuit, these two diagnostic methods detected and effectively identified single and multiple open-circuit faults of inverter IGBTs. A comparison of the times for the diagnosis and anti-interference features between these two methods is presented. The diagnostic time of both methods was less than 280ns in the best case. The diagnostic time for the method based on the bridge arm pole voltage was less than that of the method based on the bridge arm line voltage and was 1/2 of the fundamental period in the worst case. An experimental study was carried out to show the effectiveness of and the differences between these two methods.

성인 여성의 대사증후군 및 대사증후군 진단요인 유병률 (Prevalence of Metabolic Syndrome and Its Components in Adult Women)

  • 전나미;채현주
    • Journal of Korean Biological Nursing Science
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    • 제20권4호
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    • pp.261-269
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    • 2018
  • Purpose: The purpose of this study was to investigate the prevalence of metabolic syndrome and diagnostic components in adult women. Methods: The subjects of this study were 12,016 women that were aged twenty years or older and underwent an annual health check-up for National Health Insurance Service (NHIS) from 2009 to 2013. Data including blood pressure, waist circumstance, fasting glucose, triglyceride, and high density lipoprotein cholesterol (HDL-C) were received from the NHIS. This data was analyzed through the use of descriptive statistics, ${\chi}^2$-test, and multiple logistic regression. Results: The prevalence of metabolic syndrome and diagnostic components increased with age. In the five diagnostic components of the metabolic syndrome, the prevalence of low HDL-C was highest in 20s to 40s. The prevalence of high blood pressure was highest in the people aged fifty or older. The risk of metabolic syndrome in 2013 was higher in women with abnormal diagnostic component of metabolic syndrome in 2009 and highest in women with abnormal waist circumstance in 2009. Conclusion: There was a need to investigate the prevalence of metabolic syndrome components according to age. Education on metabolic syndrome was required for those that had one or two abnormal diagnostic components. The risk of abdominal obesity related to metabolic syndrome needs to be emphasized. Moreover the education for management of abdominal obesity also needs to be emphasised.