• 한국전문물리치료학회지
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• 제16권4호
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• pp.1-7
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• 2009

The active-knee-extension (AKE) test has been used to measure hamstring muscle length. The traditional AKE test measures the popliteal angle to the point of resistance with a 90-degree flexion of the hip fixed by straps, while the stabilized AKE test measures the popliteal angle to the point of resistance with a 90-degree flexion of the hip stabilized using a pressure biofeedback unit providing lumbopelvic stabilization. The purpose of this study was to determine test-retest reliability of the traditional AKE test and stabilized AKE test. Twenty healthy adults participated in the study. The popliteal angles were measured with a digital inclinometer during each test. To assess the test-retest reliability between the 2 test sessions, intraclass correlation coefficients (ICCs) were calculated. The intrasubject coefficient of variation ($CV_{intra}$) was also calculated. To compare the traditional and stabilized AKE tests for changes in pressure, paired t-tests were applied. The results of this study were as follows: 1) ICCs(3,1) value for test-retest reliability was .96 in the traditional AKE test, and was .98 in the stabilized AKE test. 2) The maximal $CV_{intra}$ was 33.7% in the traditional AKE test and 15.7% in the stabilized AKE test. 3) Differences of $6.1{\pm}2.1$ mmHg in pressure were measured in the traditional AKE test, and differences of $1.2{\pm}1.0$ mmHg in pressure were measured in the stabilized AKE test. The results show the traditional and stabilized AKE test to be highly reliable, with test-retest reliability. However, the stabilized AKE test represented less variation and more stabilization than the traditional AKE test. Further study is needed to measure the inter-rater reliability of the stabilized AKE test for generalization and clinical application.

• 대한임상검사과학회지
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• 제50권3호
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• pp.261-266
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• 2018

만성C형 간염환자 160예를 대상으로 immunoblot방법과 RT-PCR-hybridization법을 실시하여 임상검사의 유용성을 알아보았다. 양성 150예 중 133예만 RT-PCR-hybridization 법에서 양성을 나타내어 immunoblot법의 진양성율은 88.6%를 나타났으며 두 방법 간의 일치율은 89.3%를 나타났다. 한국인의 HCV 아형을 알기 위하여 혈청형과 유전형을 실시하였다. HCV혈청형 1형과 2형 그리고 1b와 2a유전형이 가장 많은 C형간염 감염원으로 나타났다. 49예를 혈청형과 유전형을 서로 비교한 결과, 혈청형 검사에서 28예(57.1%)가 1형, 21예(42.9%)가 2형으로 나타났으며 유전자형 검사에서 1b형이 25예(51.0%), 1b/2b를 나타낸 예가 1예(2.0%), 2a형이 17예(34.7%), 2a/2c를 나타낸 예가 4예(8.2%), 그리고 2b형이 2예(4.1%)로 나타났다. 본 연구에서는 HCV 간이검출법으로는 immunoblot방법이 유용하며, immunoblot방법 양성 확진검사로는 RT-PCR-hybridization법을 실시하였다. 혈청형이 C형간염의 치료 나 진행과정을 관찰하기 위해서는 유전형보다 유용하나 인터페론 치료효과는 1형과 2형 혈청형별에 따라 차이를 보이지 않았다.

• 한국의류산업학회지
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• 제1권2호
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• pp.154-159
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• 1999

In this study, for different test methods of the performance of sewing threads were used to evaluate the sewability of 10 different industrial threads. Sewability evaluations related to the breakage of thread during sewing operation were investigated by seam length and fabric thickness method (Test 1), thread tension method (Test 2), strength retention method (Test 3), and backward sewing method(Test 4), and discussed. Two of the methods, Test 1 and Test 2, simulated very harsh sewing conditions which each thread could accept as an evaluation of its sewability. Core spun thread ranked with the best sewability generally and followed by air jet textured (ATY) thread. Spun thread was superior to the filament thread in sewing thread type. In general, there was a high degree of correlation in the results of Test 1 and Test 2. The order of sewing thread by sewability test 1 was polyester spun thread, cotton thread, and p/c core spun thread. The order of sewing thread by test 2 was polyester spun thread, and p/c core spun thread. Cotton threads and cotton blended threads performed better in Test 3, and ATY threads and core spun threads in Test 4.

• 한국환경보건학회지
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• 제1권1호
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• pp.18-20
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• 1974

A Serological test for Syphilis by VDRL Slide tests were made to find the degree of treponemal infection. For this study sera were collected from 5, 312 Prostitutes of Seoul, Inchun, Euijungbu, Yangzoo, Pajoo and Pyungtaig from November 27, to December 7, 1972 and were examined on the following items. 1. VDRL Slide Qualitative test. 2. VDRL Slide Quantitative test. As the results of this study the following Conclusions were obtained. 1) This test were obtained average reactive 5.92% for 5, 312 prostitutes in Seoul 7.87% for 254 prostitutes, in Iuchun 6.77% for 354 prostitutes, in Euijungbu 6.62% for 740 prostitutes, in Yangjoo 5.82% for 1, 958 prostitutes, in Pajoo 6.08% for 937 prostitutes and in Pyungtaig 4.82% for 1, 069 prostitutes respectively 2) The highest Reagin titer was 1: 32 serum dilution.

• Restorative Dentistry and Endodontics
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• 제45권2호
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• pp.11.1-11.9
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• 2020

Objectives: This study compared the flow and filling of several retrograde filling materials using new different test models. Materials and Methods: Glass plates were manufactured with a central cavity and 4 grooves in the horizontal and vertical directions. Grooves with the dimensions used in the previous study (1 × 1 × 2 mm; length, width, and height respectively) were compared with grooves measuring 1 × 1 × 1 and 1 × 2 × 1 mm. Biodentine, intermediate restorative material (IRM), and mineral trioxide aggregate (MTA) were evaluated. Each material was placed in the central cavity, and then another glass plate and a metal weight were placed over the cement. The glass plate/material set was scanned using micro-computed tomography. Flow was calculated by linear measurements in the grooves. Central filling was calculated in the central cavity (㎣) and lateral filling was measured up to 2 mm from the central cavity. Results: Biodentine presented the least flow and better filling than IRM when evaluated in the 1 × 1 × 2 model. In a comparison of the test models, MTA had the most flow in the 1 × 1 × 2 model. All materials had lower lateral filling when the 1 × 1 × 2 model was used. Conclusions: Flow and filling were affected by the size of the test models. Higher grooves and materials with greater flow resulted in lower filling capacity. The test model measuring 1 × 1 × 2 mm showed a better ability to differentiate among the materials.

• Asian Pacific Journal of Cancer Prevention
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• 제15권2호
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• pp.891-894
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• 2014

This study is aimed to investigate the role of paired boxed gene 1 (PAX1) methylation analysis by methylation-sensitive high-resolution melting (MS-HRM) in the detection of high grade lesions in atypical squamous cells cannot exclude high-grade squamous intraepithelial lesion (ASC-H) and compared its performance with the Hybrid Capture 2 (HC2) human papillomavirus (HPV) test. In our study, 130 cases with a diagnosis of ASC-H from the cervical cytological screening by Thinprep cytologic test (TCT) technique were selected for triage. Their cervical scrapings were collected and evaluated by using PAX1 methylation analysis (MS-HRM) and high-risk HPV DNA test (HC2), followed by colposcopy and cervical biopsy. Chi-square test were used to test the differences of PAX1 methylation or HPV infection between groups. In the detection of CIN2+, the sensitivity, specificity, the PPV, NPV and the accuracy of PAX1 MS-HRM assay and high-risk HPV (HR-HPV) tests were respectively 80.6% vs 67.7%, 94.9% vs 54.5%, 83.3%, vs 31.8%, 94.0% vs 84.4%, and 91.5% vs 57.7%. The PAX1 MS-HRM assay proved superior to HR-HPV testing in the detection of high grade lesions (CIN2+) in ASC-H. This approach could screen out the majority of high grade lesion cases of ASC-H, and thus could reduce the referral rate to colposcopy.

• 한국전기전자재료학회논문지
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• 제18권1호
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• pp.96-103
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• 2005

To analyze the reason of aging deterioration in transmission line insulators, we performed a various kind of test and investigated mechanical and electrical characteristics of insulators. Test samples consisted of K-1989(36,000lbs), K-1995(36,000lbs) and K-2001(36,000lbs) type insulators which have been used in domestic 154 kV transmission lines. As a result of this test, the facts turned out K-2001 insulator which contain 17 wt.% alumina has better physical characteristics than K-1989 insulator which contain 8 wt% alumina. Relativity density and fracture toughness of K-1989 porcelain are 94.2 % and 1.4 MPa\ulcornerm$^{1}$2// but relativity density and fracture toughness of K-2001 porcelain are 96 % and 1.7 MPa\ulcornerm$^{1}$2//. K-2001 insulators show a good performance not only in a physical property test but also in power arc test and steep front of wave flashover test which is performed to evaluate electrical characteristics.

• Parasites, Hosts and Diseases
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• 제23권2호
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• pp.300-304
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• 1985

서울강남성모병원에 내원한 산부인과환자 중 임산부 377명과 골반장기종양환자 43명 그리고 종합건강진단을 위해서 내원한 부인 80명을 대조군으로 하여 간접 Latex응집반응항체가를 조사하였다. 1. 임산부 377례중 Tp항체가는 음성이 319례(84.6%), 1:2가 44례(11.7%), 1:4가 9례(2.4%) 1:8이 2례(0.5%), 1:16이 1례(0.3%), 1:32가 2례(0.5%)이었다. 2. 골반 장기종양환자 43례중에서는 Tp항체가가 음성이 29례(67.4%), 1:2가 8례(18.6%), 1:4가 1례(2.3%), 1:16이 2례(4.7%), 1:32가 1례(2.3%), 그리고 1:128이 2례(4.7%)이었다. 3. 건진쎈터의 부인 80례중 Tp항체가는 음성이 56명(70.0%), 1:2가 19례(23.8%), 1:4가 3례(3.8%), 1:8이 1례(1.3%), 그리고 1:128)이 1례(1.3%)이었다. 4. 실험군 420례중 피실험청희석배수로 1:32이상을 양성반응으로 보고 5례(1.2%)가 양성이었는데 그중 2례(0.5%)는 임산부에서, 그리고 3례(7.0%)는 골반내장기종양환자중에서 발견되었다. 5. 대조군 80례 중에서 1례(1.3%)에서만 양성반응을 나타내었다.

• International Journal of Aerospace System Engineering
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• 제2권2호
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• pp.87-91
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• 2015

KT-1P for the Peru Air Force will be used as a utility aircraft with upgraded avionics equipment and arming capability based on KT-1 and KA-1. KT-1P should be shown for compatibility of new store loading configurations loaded with dispenser, bomb, and rocket based on aircraft-store compatibility test and evaluation procedures before KT-1P is operated as a light attack aircraft. The weapon system ground test for installation and flight test for envelope expansion including store separation are described in this paper, which was performed referring 'seek eagle program' under MIL-HDBK-1763 and MIL-HDBK-244A.

• Journal of Periodontal and Implant Science
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• 제51권1호
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• pp.63-74
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• 2021

Purpose: This study investigated the effects of hyaluronic acid (HA) on peri-implant clinical variables and crevicular concentrations of the proinflammatory biomarkers interleukin (IL)-1β and tumor necrosis factor (TNF)-α in patients with peri-implantitis. Methods: A randomized controlled trial was conducted in peri-implantitis patients. Patients were randomized to receive a 0.8% HA gel (test group), an excipient-based gel (control group 1), or no gel (control group 2). Clinical periodontal variables and marginal bone loss after 0, 45, and 90 days of treatment were assessed. IL-1β and TNF-α levels in crevicular fluid were measured by enzyme-linked immunosorbent assays at baseline and after 45 days of treatment. Clustering analysis was performed, considering the possibility of multiple implants in a single patient. Results: Sixty-one patients with 100 dental implants were assigned to the test group, control group 1, or control group 2. Probing pocket depth (PPD) was significantly lower in the test group than in both control groups at 45 days (control 1: 95% CI, -1.66, -0.40 mm; control 2: 95% CI, -1.07, -0.01 mm) and 90 days (control 1: 95% CI, -1.72, -0.54 mm; control 2: 95% CI, -1.13, -0.15 mm). There was a trend towards less bleeding on probing in the test group than in control group 2 at 90 days (P=0.07). Implants with a PPD ≥5 mm showed higher levels of IL-1β in the control group 2 at 45 days than in the test group (P=0.04). Conclusions: This study demonstrates for the first time that the topical application of a HA gel in the peri-implant pocket and around implants with peri-implantitis may reduce inflammation and crevicular fluid IL-1β levels.