• Title/Summary/Keyword: Diagnostic Tool

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A Study on the Development and Validation of Learning Status Diagnostic Tool (학습상황진단도구 개발 사례 연구 : K대학교를 중심으로)

  • Lee, Seong Ah
    • Journal of Christian Education in Korea
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    • v.64
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    • pp.409-444
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    • 2020
  • The purpose of this study is to develop and propose a tool for accurately diagnosing factors influencing academic activities in Christian University. The first, the evaluation area is composed of factors that influence the academic life of students. Then, by developing a tool to diagnose the status in that areas, it is intended to provide a basis for providing appropriate help for students to adjust to university life. This tool composed items through prior research and developed a draft of tool through Delphi research. The draft tool was verified for reliability and validity by analyzing the response values of 182 freshmen at K University. As a result of the analysis, the reliability showed high reliability of .869~.955 for each diagnosis area. In conclusion, through the results of EFA and CFA, a final diagnostic tool was developed and suggested.

Performance Evaluation of Biozentech Malaria Scanner in Plasmodium knowlesi and P. falciparum as a New Diagnostic Tool

  • Firdaus, Egy Rahman;Park, Ji-Hoon;Muh, Fauzi;Lee, Seong-Kyun;Han, Jin-Hee;Lim, Chae-Seung;Na, Sung-Hun;Park, Won Sun;Park, Jeong-Hyun;Han, Eun-Taek
    • The Korean Journal of Parasitology
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    • v.59 no.2
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    • pp.113-119
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    • 2021
  • The computer vision diagnostic approach currently generates several malaria diagnostic tools. It enhances the accessible and straightforward diagnostics that necessary for clinics and health centers in malaria-endemic areas. A new computer malaria diagnostics tool called the malaria scanner was used to investigate living malaria parasites with easy sample preparation, fast and user-friendly. The cultured Plasmodium parasites were used to confirm the sensitivity of this technique then compared to fluorescence-activated cell sorting (FACS) analysis and light microscopic examination. The measured percentage of parasitemia by the malaria scanner revealed higher precision than microscopy and was similar to FACS. The coefficients of variation of this technique were 1.2-6.7% for Plasmodium knowlesi and 0.3-4.8% for P. falciparum. It allowed determining parasitemia levels of 0.1% or higher, with coefficient of variation smaller than 10%. In terms of the precision range of parasitemia, both high and low ranges showed similar precision results. Pearson's correlation test was used to evaluate the correlation data coming from all methods. A strong correlation of measured parasitemia (r2=0.99, P<0.05) was observed between each method. The parasitemia analysis using this new diagnostic tool needs technical improvement, particularly in the differentiation of malaria species.

Comparative evaluation of ultrasonography with clinical respiratory score in diagnosis and prognosis of respiratory diseases in weaned dairy buffalo and cattle calves

  • Hussein, Hussein Awad;Binici, Cagri;Staufenbiel, Rudolf
    • Journal of Animal Science and Technology
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    • v.60 no.12
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    • pp.29.1-29.11
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    • 2018
  • Background: Respiratory troubles have economic impacts in countries where livestock industry is an important segment of the agricultural sector, as well as these problems may cause significant economic losses for bovine producers. Various practical methods are used to assess diseases that affect the bovine respiratory system. Ultrasonography is a noninvasive tool that has been used frequently in diagnosis of various animal diseases. The present study was designed to establish whether thoracic ultrasonography is a diagnostic tool for detection of respiratory troubles in weaned buffalo and cattle calves, as well as to assess its prognostic value in comparison with clinical respiratory scores. Thirty five (15 buffalo and 20 cattle) calves were included. Twelve (6 buffalo and 6 cattle) clinically healthy calves were enrolled as controls. Results: Based on physical examinations, clinical respiratory scores (CRS), ultrasound lung scores (ULS) and postmortem findings, animals were classified into 4 groups as pulmonary emphysema (n = 8), interstitial pulmonary syndrome (n = 7), bronchopneumonia (n = 12), and pleurisy (n = 8). The mean values of CRS and ULS were significantly higher in diseased calves (P < 0.01). In calves with pulmonary emphysema and interstitial syndrome, thoracic ultrasonography revealed numerous comet-tail artifacts, which varied in numbers and imaging features. Furthermore, variable degrees of pulmonary consolidation with alveolograms and bronchograms were noticed in bronchopneumonic calves. In addition, thick irregular or fragmented pleura with pleural effusions and fibrin shreds were imaged in calves with pleurisy. A weak correlation was calculated between CRS and ULS (r = 0.55, P < 0.01). Hematologically, the counts of white blood cells, activities of aspartate aminotransferase and partial tensions of carbon dioxide were significantly increased in all diseased groups. Serum concentrations of total globulins were higher in claves with bronchopneumonia (P < 0.05). The partial tension of oxygen was decreased in all diseased calves (P < 0.05). Conclusions: Thoracic ultrasonography is a diagnostic tool for various lung troubles and assessment the grade and severity of pulmonary diseases, as well as it can be used as a follow-up tool for evaluating the prognosis of respiratory troubles and monitoring the efficacy of therapies.

Recovery Voltage Measurements of Oil-immersed Transformer

  • Li, Ming-Hua;Dong, Ming;Qu, Yan-Ming;Yan, Zhang
    • Transactions on Electrical and Electronic Materials
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    • v.7 no.5
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    • pp.230-234
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    • 2006
  • One of the methods currently being investigated as a possible non-intrusive diagnostic tool for condition monitoring of power transformer and cable is the recovery voltage measurement, which will be improving the ability to detect the content of water concentration and the ageing process in the insulation system and may thus be an indicator of insulation quality and its ageing status. The polarization phenomenon was studied using RVM with oil-paper samples. In order to interpret its mechanism, the Extended Debye model was introduced. With different circuit parameters, various simulation results were gotten. Furthermore, with the test samples of different ageing condition, measurements are accomplished in the lab. On the basis of this experiment as well as theoretical analysis, correlations between polarizations and ageing were analyzed.

NUCLEAR SPIRALS IN NEARBY GALAXIES

  • ANN HONG BAE
    • Journal of The Korean Astronomical Society
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    • v.38 no.2
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    • pp.121-124
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    • 2005
  • High resolution images of the nuclear regions of nearby galaxies show that nuclear spirals are preponderant in normal galaxies as well as in active galaxies. These nuclear spirals, especially the grand-design nuclear spirals are found to be formed by the gas flow driven by the bar. Hydrodynamical simulations exploring a wide range of parameter space show that the morphology of nuclear spirals depends not only on the inner dynamics but on the global dynamics resulting from the global mass distribution of galaxies. Thus, the nuclear morphology can be a diagnostic tool for the inner dynamics of galaxies when the global mass distribution is taken into account.

Development of Chemiluminescent Immunosensor Array for GMO

  • Jung, Woo-Sung;Hwang, Ok-Hwa;Jang, Hye-Ji;Paek, Eui-Hwan;Park, Won-Mok;Paek, Se-Hwan
    • 한국생물공학회:학술대회논문집
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    • 2003.10a
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    • pp.683-686
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    • 2003
  • While genetically modified organisms (GMOs) are producing in many countries, issues related to safeties of GMOs as foods for human have risen. Because of such potential problems, the development of an indication system regarding GMO content contained in foods has been required. Particularly, an immune-chip, as widely demanded diagnostic tool for functional, structural analyses of proteins, has been investigated to simultaneously measure different analytes. We have developed methods for immobilizing antibody on glass surfaces as substrate and for generating chemiluminometric signals.

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Transcranial Doppler Study in Stroke (뇌졸중에서의 경두개 초음파 검사)

  • Lee, Te Gyu
    • Annals of Clinical Neurophysiology
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    • v.1 no.1
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    • pp.60-63
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    • 1999
  • Transcranial Doppler(TCD) is an important diagnostic tool for evaluating the patients with stroke. It has some advantages and unique role when compared with other neuroimaging modalities. Recent development of transcranial color-coded Doppler(TCD) improves the limitation and pitfalls of TCD. The current indications of TCD are as follows: 1. Screening and evaluation of the intracranial major vessels 2. early detection and follow-up of vasospasm due to SAH 3. emboli detection (high-imtensity transient signals, HITs) 4. dignosis and follow-up of subclavian steal 5. evaluation of intracranial collaterals when the extracranial ICA has severe stenosis or occlusion 6. evaluation of cerebral perfusion pressure (intracranial pressure) 7. evaluation of arteriovenous malformation 8. diagnosis and follow-up of arterial dissenction 9. diagnosis and follow-up of venous sinus thrombosis (experimental).

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Differences Between Facial Skin Temperature of the Paralyzed Side and Those of the Normal side in Essential Blepharospasm patients. (포륜진도 환자의 건측-환측 안면부 피부온도차이에 관한 연구)

  • Gang, Eun-Gyo;Seo, Hyeong-Sik
    • Journal of Pharmacopuncture
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    • v.10 no.3
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    • pp.113-119
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    • 2007
  • Objectives Benign essential blepharospasm is a progressive neurological disorder characterized by involuntary muscle contractions and spasms of the eyelid muscles. The aim of this study is to provide evidence of differences between facial skin temperaure of the paralyzed side and normal side in Essential Blepharospasm patients. Methods The author studied 13 patients with Essential Blepharospasm. We measured skin temperature of the forehead, zygoma area of the paralyzed side and those of the normal side with The Digital Infrared thermal image. Results There were no significant facial skin temperature differences between the paralyzed side and normal side. Conclusions Thermography is a useful diagnostic tool. But we expect that it is essential to diagnose a disease correctly at an early stage and to find a prompt treatment by introducing and utilizing a simple nonivading diagnofic method other than Thermography.

Diagnosis of Aseptic Necrosis of the Talus by Bone Scan; Case Report (골(骨)스캔에 의한 거골(距骨)의 비패혈성(非敗血性) 괴사진단(壞死診斷) 예(例))

  • Park, Hyoung-Gun;Lee, Myung-Chul;Koh, Chang-Soon;Yang, Yung-Sik;Park, Won-Chang
    • The Korean Journal of Nuclear Medicine
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    • v.18 no.1
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    • pp.63-65
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    • 1984
  • Bone scan is a very useful technique for detection of aseptic necrosis and frequently used in the detection of aseptic necrosis of the femoral head. We have used this diagnostic tool in a patient to detect aseptic necrosis of the talus, a common complication resulting from foot injuries.

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The Model Development of Coupled Thermo-Electromagnetic Analysis in Three-phase Induction Motors by using Heat loss Mapping Method (3상 유도 전동기에서의 열손실 사상법을 이용한 열전달-전자기장 연계 수치 해석 모델 개발)

  • Kim, Dong-Hee;Kim, Chi-Won;Jung, Hye-Mi;Lee, Ju;Um, Suk-Kee
    • Proceedings of the KIEE Conference
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    • 2011.07a
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    • pp.788-789
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    • 2011
  • A comprehensive thermo-electromagnetic model has been developed to estimate temperature and electromagnetic distribution in an three-phase induction motor under steady state operation. Electromagnetic modeling enables us to predict thermal dissipation rates by eddy-current loss and copper loss in induction motors. Non-uniform temperature distributions are investigated to account for the strong effect of local temperature build-up on the motor performance and expected life-span. For more accurate thermal modeling purpose, Heat loss mapping method, which is matched up with electromagnetic losses and volumetric heat source, is developed and performed analysis. Heat loss mapping method can be greatly used as a design or diagnostic tool for three-phase induction motors with complex structural electromagnetic fields.

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