• Title/Summary/Keyword: ASC-2

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Clinical Prediction Based on HPV DNA Testing by Hybrid Capture 2 (HC2) in Combination with Liquid-based Cytology (LBC)

  • Junyangdikul, Pairoj;Tanchotsrinon, Watcharaporn;Chansaenroj, Jira;Nilyaimit, Pornjarim;Lursinsap, Chidchanok;Poovorawan, Yong
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.2
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    • pp.903-907
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    • 2013
  • Primary screening by HPV DNA testing is an effective method for reducing cervical cancer and has proven more sensitive than cytology. To advance this approach, many molecular methods have been developed. Hybrid capture 2 provides semi-quantitative results in ratios of relative light units and positive cutoff values (RLU/PC). Twenty-five thousand and five patients were included in this study to analyze the correlation between the ratio of RLU/PC and stage of cervical dysplasia. The results show that the RLU/PC ratios ranged from 0-3500 while almost normal cases, ASC-US and ASC-H, had values below 200. Of those samples negative for cytology markers, 94.6% were normal and their RLU/PC ratios were less than 4. With an RLU/PC ratio greater than 4 and less than or equal to 300, the percentages in all age groups were normal 53.6%, LSIL 20.2%, ASC-US 17.2%, HSIL 6.13%, ASC-H 2.72%, and AGC 0.11%, respectively. In contrast, 64.0% of samples with a RLU/PC ratio greater than 300 and less than or equal to 3500 were LSIL. These results should contribute to cost effective cervical cancer management strategies. Further studies of associations with particular HPV genotypes would be useful to predict the risk of progression to cancer.

2016 American Solar Challenge (ASC) 참관 및 World Solar Challenge 소개

  • Park, Jun-Su
    • Bulletin of the Korea Photovoltaic Society
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    • v.2 no.2
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    • pp.36-43
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    • 2016
  • 최근 지구온난화 및 각종 미세먼지 문제 등을 해결하기 위한 방안으로 친환경 운송수단에 대한 관심이 증폭되고 있다. 이에 따라 자동차 배기가스 규제는 더욱 강화되고 있으며, 내연기관이 아닌 새로운 동력원을 활용하는 친환경 자동차의 개발이 요구되고 있다. 이러한 요구를 만족시키며, 지속 가능한 운송수단에 대한 연구 및 개발을 자극하기 위해서 지난 30년 전부터 American Solar Challenge/ World Solar Challenge 라는 이름의 태양광 자동차 랠리가 미국 및 호주에서 진행되어 왔다. 본 기고에서는 American Solar Challenge (ASC) 참관 내용 및 World Solar Challenge에 대해 소개하며, 이를 바탕으로 향후 솔라카 개발 방향에 대해 논하고자 한다.

Is the Loop Electrosurgical Excision Procedure Necessary for Minor Cervical Cytological Abnormalities?

  • Aksan-Desteli, Guldeniz;Gursu, Turkan;Baykal, Cem Murat
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.1
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    • pp.305-308
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    • 2014
  • Background: To investigate the indications of loop electrosurgical excision procedure (LEEP) and its overtreatment rates for the see and treat and three step strategies in cases of atypical squamous cells of undetermined cytology (ASC-US) and low grade intraepithelial neoplasia (LGSIL) cytology. Materials and Methods: We retrospectively analyzed colposcopy directed biopsy (CDB) and LEEP results of 176 paients with ASC-US or LGSIL cytologies who underwent colposcopic examination. Results: Initial cytologies were ASCUS in 120 women and LGSIL in 56. According to the see and treat approach immediate LEEP was performed for38 women. Among the remaining 138 women, LEEP was performed for 32 whose CDB results revealed CIN2/3 lesions. In the see and treat group the recognition of CIN2/3 was found to be 39.4%. The overtreatment rate was 60% as compared to 25% in the three step group. In CDB group detection of CIN 2 or greater lesions increased with 3 or more biopsies. Conclusions: In patients with ASC-US/LGSIL cytologies CDB should be performed before LEEP to prevent overtreatment, with attention to all suspected areas and more than 2 biopsies taken.

A CASE REPORT ON THE UNILATERALLY DESIGNED MOLAR RESTORATION (ASC52 attchment 이용한 하악편측 유리단 회복의 일례)

  • Lee, Seon-Hyeong
    • The Journal of the Korean dental association
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    • v.14 no.4
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    • pp.377-379
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    • 1976
  • Lower right first and second molar missings were restored by unilaterally designed removable partial denture, not to disturb the phonetic function. Terminal abutment teeth were splinted and ASC52 attachment aws used as a direct retainer. After that, oral examination and Roentgenographic examination were done periodically for 2 years. There were no remarkable changes on the abutment teeth and its surrounding structures. Also, there no phonetic disturbances by the appliance.

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Genotype Distribution of Human Papillomavirus in Women with Abnormal Cervical Cytology in an Esophageal Carcinoma High Incidence Area of China

  • Mai, Rui-Qin;Huang, Bo;Shen, Ling;Zhang, Guo-Hong;Hong, Liang-Li;Cai, Ying-Mu
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.12
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    • pp.4945-4950
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    • 2014
  • Infection with human papillomavirus (HPV) could affect genesis of both cervical and esophageal cancers. The type-specific distribution of HPV in cervical cytology abnormalities of women has remained unclear in Shantou, an esophageal cancer high-incidence area of China. Data from 22,617 women who were subjected to cervical HPV DNA testing with simultaneous cervical cytological examination during 2009-2013 were therefore here retrospectively evaluated in a hospital-based study. Overall, 16.2% (3,584/22,114)of women with normal cytology were HR-HPV positive, with HPV-52 (4.07%) as the most common type followed by -16 (3.63%), and -58 (2.46%). Prevalence of HR-HPV was 50.3% (253/503) in women with cervical cytological abnormalities, of which in ASC-H 71.4%, ASC-US 39.1%, HSIL 80.3% and LSIL 73.7%. HPV-58 (14.12%) was the most common type for all cervical cytological abnormalities, followed by HPV-16 (13.72%), and -52 (12.72%), while the more common HPV-16 type in ASC-H (42.9%) and HSIL (36.1%), HPV-52 and -58 were the most common types for ASC-US (10.3%) and LSIL (25%), respectively. Multiple HPV co-infections were identified in 33.2% (84/253) cytology abnormalities with positive HR-HPV, and the highest prevalence of HPV-58/16 combination in HSIL (28.6%, 6/21) was observed. Our data indicated a relative high prevalence of HPV-58 and -52 in women with cervical cytological abnormalities, which should be considered in the development of next-generation vaccines for Shantou.

A research on the emotion classification and precision improvement of EEG(Electroencephalogram) data using machine learning algorithm (기계학습 알고리즘에 기반한 뇌파 데이터의 감정분류 및 정확도 향상에 관한 연구)

  • Lee, Hyunju;Shin, Dongil;Shin, Dongkyoo
    • Journal of Internet Computing and Services
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    • v.20 no.5
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    • pp.27-36
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    • 2019
  • In this study, experiments on the improvement of the emotion classification, analysis and accuracy of EEG data were proceeded, which applied DEAP (a Database for Emotion Analysis using Physiological signals) dataset. In the experiment, total 32 of EEG channel data measured from 32 of subjects were applied. In pre-processing step, 256Hz sampling tasks of the EEG data were conducted, each wave range of the frequency (Hz); Theta, Slow-alpha, Alpha, Beta and Gamma were then extracted by using Finite Impulse Response Filter. After the extracted data were classified through Time-frequency transform, the data were purified through Independent Component Analysis to delete artifacts. The purified data were converted into CSV file format in order to conduct experiments of Machine learning algorithm and Arousal-Valence plane was used in the criteria of the emotion classification. The emotions were categorized into three-sections; 'Positive', 'Negative' and 'Neutral' meaning the tranquil (neutral) emotional condition. Data of 'Neutral' condition were classified by using Cz(Central zero) channel configured as Reference channel. To enhance the accuracy ratio, the experiment was performed by applying the attributes selected by ASC(Attribute Selected Classifier). In "Arousal" sector, the accuracy of this study's experiments was higher at "32.48%" than Koelstra's results. And the result of ASC showed higher accuracy at "8.13%" compare to the Liu's results in "Valence". In the experiment of Random Forest Classifier adapting ASC to improve accuracy, the higher accuracy rate at "2.68%" was confirmed than Total mean as the criterion compare to the existing researches.

Comparison of the Results for Sentinel Lymph Node Mapping in the Breast Cancer Patients using $^{99m}Tc$-Antimony Trisulfide Colloid, $^{99m}Tc$-Tin Colloid, and $^{99m}Tc$-Human Serum Albumin (유방암 환자에서 $^{99m}Tc$-Antimony Trisulfide Colloid, $^{99m}Tc$-Tin Colloid, $^{99m}Tc$-Human Serum Albumin을 이용한 감시림프절 매핑 성적의 비교)

  • Jang, Sung-June;Moon, Seung-Hwan;Kim, Seok-Ki;Kim, Bom-Sahn;Kim, Seok-Won;Chung, Ki-Wook;Kang, Keon-Wook;Lee, Eun-Sook
    • Nuclear Medicine and Molecular Imaging
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    • v.41 no.6
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    • pp.546-552
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    • 2007
  • Purpose: In the breast cancer patient, lymphatic mapping and sentinel lymph node biopsy are the most important procedure for axillary lymph node staging. We aimed to compare the three radiocolloids [$^{99m}Tc$-antimony trisulfide colloid (ASC), $^{99m}Tc$-tin colloid (TC), and $^{99m}Tc$-human serum albumin (HSA)] for sentinel lymph node mapping. Subjects and Methods: Totally, 397 patients with clinically N0 stage were enrolled. $^{99m}Tc$-ASC was injected in 202 out of 397 patients, $^{99m}Tc$-TC was injected in 120 patients, and $^{99m}Tc$-HSA was injected in the remaining 75 patients. The sentinel lymph nodes were localized by lymphoscintigraphy and selected using intraoperative gamma probe. All sentinel lymph nodes were investigated by intraoperative pathologic consultation. The axillary lymph nodes which were harvested by the lymph node dissection were also investigated. Results: The patients of each group showed similar clinical characteristics. There were no significant differences (p>0.05) in the identification rate of sentinel lymph nodes (IR), false negative rate (FNR), and negative predictive value (NPV). The axillary lymphadenectomy revealed axillary lymph node metastases in those three groups (ASC-33.2%, TC-31.7%, HSA-22.7%). The IR, FNR, and NPV were not significantly different among those groups. Conclusion: Those three $^{99m}Tc$-labeled radiocolloids showed equivalent results in sentinel lymph node mapping of breast cancer.

Genetic Organization of ascB-dapE Internalin Cluster Serves as a Potential Marker for Listeria monocytogenes Sublineages IIA, IIB, and IIC

  • Chen, Jianshun;Fang, Chun;Zhu, Ningyu;Lv, Yonghui;Cheng, Changyong;Bei, Yijiang;Zheng, Tianlun;Fang, Weihuan
    • Journal of Microbiology and Biotechnology
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    • v.22 no.5
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    • pp.575-584
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    • 2012
  • Listeria monocytogenes is an important foodborne pathogen that comprises four genetic lineages: I, II, III, and IV. Of these, lineage II is frequently recovered from foods and environments and responsible for the increasing incidence of human listeriosis. In this study, the phylogenetic structure of lineage II was determined through sequencing analysis of the ascB-dapE internalin cluster. Fifteen sequence types proposed by multilocus sequence typing based on nine housekeeping genes were grouped into three distinct sublineages, IIA, IIB, and IIC. Organization of the ascB-dapE internalin cluster could serve as a molecular marker for these sublineages, with inlGHE, inlGC2DE, and inlC2DE for IIA, IIB, and IIC, respectively. These sublineages displayed specific genetic and phenotypic characteristics. IIA and IIC showed a higher frequency of recombination (${\rho}/{\theta}$). However, recombination events had greater effect (r/m) on IIB, leading to its high nucleotide diversity. Moreover, IIA and IIB harbored a wider range of internalin and stress-response genes, and possessed higher nisin tolerance, whereas IIC contained the largest portion of low-virulent strains owing to premature stop codons in inlA. The results of this study indicate that IIA, IIB, and IIC might occupy different ecological niches, and IIB might have a better adaptation to a broad range of environmental niches.

Characteristics of Space Design and Design Elements of Aging Simulation Centers (국내 노인생애체험전시관의 공간디자인 특성 연구)

  • Kim, Young-Jo;Lee, Yun-Hee;Shin, Hwa-Kyung
    • Korean Institute of Interior Design Journal
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    • v.17 no.2
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    • pp.111-121
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    • 2008
  • In recent years, Korean population aged 65 and over has grown faster(7.2% in 2000, 14.4% projected in 2018 and 20.0% in 2026) than the other age groups and average life expectancy has increased from 65.8 years in 1980 to 75.9 years in 2000. The Aging Simulation Center(ASC) was built for people to give educational chance for further understanding of the elderly and the environment for the aged. People are able to recognize the changes including hearing loss, vision changes, and changes in the ability to touch and move after experiencing the simulated daily life of older persons. In general, ASC is composed of residential setting area and exhibition area of daily commodities for the elderly and care person. Currently, there are four ASCs in Korea. The purpose of this study is to evaluate the characteristics of space design and design elements of ASCs and to suggest design implementation for better residential environment for the elderly. For the research purpose, design characteristics such as floor plans and spatial design elements of three ASCs were analyzed and compared. As a whole, space design of three ASCs was almost same without distinguished characteristics. The major finding of this study indicates that the ASC is considerably helpful environment to understand aging. However, some of design elements such as lighting should be supplemented for safety issue. It is recommended for future design of ASC to include exterior space including outdoor stairs, paths and roads and so on. In addition, reception and preparation area should be arranged with universally designed furniture.