• Title/Summary/Keyword: Site-specificity

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A Study on the Characteristics of Digital Graffiti and Expression in Fashion (패션에 활용된 디지털 그라피티의 특성과 표현방법)

  • Kim, Taehee;Yoo, Youngsun
    • Journal of the Korean Society of Costume
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    • v.65 no.8
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    • pp.50-63
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    • 2015
  • The purpose of this study is to explore the potential of digital graffiti as a new creative tool in fashion through analysis of its expressive features and methods merged in fashion. The results from the analysis of fashion cases using digital graffiti may be summarized as follows. First, 'Mixing of Materials and Non-materials' matched immaterial lights and images with physical clothing materials and space, effectively expressing imaginary spheres that were not expressible with the existing materials. Second, 'Fantastic Storytelling' expressed theme such as 'Sun', 'UFO', 'Science Fiction Film', 'Fantasy Fairy Tale', and 'Universe' through lasers, lights, augmented reality and LED graffiti. Third, 'Convergence with Human and Digital Media' accentuated the active participation of spectators thereby causing human and digital media to interact with each other. Designer's ideas and unexpected responses of spectators realized various digital graffiti effects, which came across by sheer chance. Fourth, 'Utilizing of Site-Specificity' met with the best results when the digital graffiti was expressed in context of a place or location where fashion performance is taking place. Fifth, ' Playfulness by Consumer Participation' intended to induce voluntary participation from consumers by providing the fashion digital graffiti as play tools, and created new fashion digital graffiti or altered existing stereotypes, thereby invoking new visual and tactile experiences. Likewise, today's digital graffiti are emerging in various fields, and the trend of fashion-digital graffiti integration has already created interesting works.

Development of a biosensor from aptamers for detection of the porcine reproductive and respiratory syndrome virus

  • Kuitio, Chakpetch;Rasri, Natchaya;Kiriwan, Duangnapa;Unajak, Sasimanas;Choowongkomon, Kiattawee
    • Journal of Veterinary Science
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    • v.21 no.5
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    • pp.79.1-79.12
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    • 2020
  • Background: Recently, the pork industry of Thailand faced an epidemic of highly virulent strains of porcine reproductive and respiratory syndrome virus (PRRSV), which spread throughout Southeast Asia, including the Lao People's Democratic Republic and Cambodia. Hence, the rapid and on-site screening of infected pigs on a farm is essential. Objectives: To develop the new aptamer as a biosensor for detection PRRSV which are rapid and on-site screening of infected pig. Methods: New aptamers against PRSSV were identified using the combined techniques of capillary electrophoresis, colorimetric assay by gold nanoparticles, and quartz crystal microbalance (QCM). Results: Thirty-six candidate aptamers of the PRRSV were identified from the systematic evolution of ligands by exponential enrichment (SELEX) by capillary electrophoresis. Only 8 out of 36 aptamers could bind to the PRSSV, as shown in a colorimetric assay. Of the 8 aptamers tested, only the 1F aptamer could bind specifically to the PRSSV when presented with the classical swine fever virus and a pseudo rabies virus. The QCM was used to confirm the specificity and sensitivity of the 1F aptamer with a detection limit of 1.87 × 1010 particles. Conclusions: SELEX screening of the aptamer equipped with capillary electrophoresis potentially revealed promising candidates for detecting the PRRSV. The 1F aptamer exhibited the highest specificity and selectivity against the PRRSV. These findings suggest that 1F is a promising aptamer for further developing a novel PRRSV rapid detection kit.

Site-directed Mutagenesis of Tyrosine 108 Residue in Human Glutathione S-Transferase P1-1

  • Ahn, So-Youn;Jeon, Sang-Hoon;Park, Hee-Joong;Kong, Kwang-Hoon
    • Bulletin of the Korean Chemical Society
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    • v.24 no.8
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    • pp.1188-1192
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    • 2003
  • In order to study the role of residue in the active site of glutathione S-transferase (GST), Tyr 108 residue in human GST P1-1 was replaced with alanine, phenylalanine and tryptophan by site-directed mutagenesis to obtain mutants Y108A, Y108F and Y108W. These three mutant enzymes were expressed in Escherichia coli and purified to electrophoretic homogeneity by affinity chromatography on immobilized GSH. The substitutions of Tyr108 significantly affected $K_m^{CDNB}$ and $K_m^{ETA}$, whereas scarcely affected $K_m^{GSH}$. The substitutions of Tyr108 also significantly affected $I_{50}$ of ETA, an electrophilic substrate-like compound. The effect of these substitutions on kinetic parameters and the response to inhibition suggests that tyrosine 108 in hGST P1-1 contributes to the binding of the electrophilic substrate and a major determinant in the binding of CDNB is the aromatic ring of Tyr108, not its hydroxyl group.

Difference in Susceptibility of Tyrosine Residue to Oxidative Iodination between a Thioredoxin Box Region and a Hormonogenic Region

  • Sok, Dai-Eun;Charles J.Sih
    • Archives of Pharmacal Research
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    • v.24 no.5
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    • pp.446-454
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    • 2001
  • Peptide fragments, isolated from proteolytic cleavage of thyroglobulin at specific sites, were examined for the iodination of tyrosine residues. The 50 kDa polypeptide, which was prepared from digestion of bovine thyroglobulin and continuous preparative SDS-PAGE, was subjected to reduction with DTT and alkylation with iodoacetic acid to generate S-car-boxymethylated peptide derivative, which was further hydrohysed by endoproteinase-Asp-N. Peptide products were separated by RP-HPLC, and each fraction was analyzed by LC/ESI-MS and MALDI-MS analyses. Based on the specificity of endoproteinase-Asp-N andthe mass spectra data, a peptide fragment turned out to correspond to a peptide, DALCCVKCPEGSYFQ (1438-1452), characterized by the presence of a thioredoxin box (CVKC) and a tyrosine residue. In addition, another peptide fragment (1453-1465) containing a thioredoxin box (CIPC) and a tyrosine residue was also observed. However, any evidence of iodination of the tyrosine residue present in these peptides was not provided. Meanwhile, tyrosine residues in the peptides, DVEEALAGKYLAGRFA (1366-1381) and DYSGLLLAFQVFLL (1290-1303) were found to be iodinated; mono- or diiodinated tyrosine residues, characteristic of a hormogenic site, existed in both peptides. In addition, the tyrosine residue in the peptide (1218-1252), corresponding to a hormonogenic site was also iodinated. Thus, there was a sharp difference of the susceptibility to oxidative iodination between the tyrosine residue in a hormonogenic site and that in a thioredoxin region. From these results, it is suggested that polypeptide region adjacent to tyrosine residues may govern the susceptibility of tyrosine to oxidative iodination.

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Synthesis of Cyclic Peticdes Related to GBⅠ-Ⅱand Study of Their Inhibitory Activity for Proteinases (GBⅠ-Ⅱ 와 관련된 Cyclic Peptide 들의 합성과 단백질 분해 효소에 대한 저해활성 연구)

  • Gang, Sin Won;Heo, Nam Won
    • Journal of the Korean Chemical Society
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    • v.34 no.3
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    • pp.288-296
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    • 1990
  • Antielastic fragment in GBⅠ-Ⅱ differ on $P_1$ site with that of antitryptic fragment in LBI. To obtain further understanding of the role of amino acid residue near the reactive site, specificity of $P_1$ site and loop size, Tyr substituted cyclic nonapeptide and cyclic pentapeptide were synthesized and the inhibition constants for some proteinases were calculated by Dixon method. Cyclic nonapeptide showed no inhibition for chymotrypsin but appeared low inhibitory activity for trypsin and elastase and that of cyclic pentapeptide possessed inhibitory activity for chymotrypsin.

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Homology Modeling and Docking Studies of Streptomyces peucetius CYP147F1 as Limonene Hydroxylase

  • Bhattarai, Saurabh;Liou, Kwangkyoung;Oh, Tae-Jin
    • Journal of Microbiology and Biotechnology
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    • v.22 no.7
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    • pp.917-922
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    • 2012
  • Homology modeling of Streptomyces peucetius CYP147F1 was constructed using three cytochrome P450 structures, CYP107L1, CYPVdh, and CYPeryF, as templates. The lowest energy SPCYP147F1 model was then assessed for stereochemical quality and side-chain environment by Accelrys Discovery Studio 3.1 software. Further activesite optimization of the SPCYP147F1 was performed by molecular dynamics to generate the final SPCYP147F1 model. The substrate limonene was then docked into the model. The model-limonene complex was used to validate the active-site architecture, and functionally important residues within the substrate recognition site were identified by subsequent characterization of the secondary structure. The docking of limonene suggested that SPCYP147F1 would have broad specificity with the ligand based on the two different orientations of limonene within the active site facing to the heme. Limonene with C7 facing the heme with distance of $3.4{\AA}$ from the Fe was predominant.

Comparison of Rectal Temperature with Axillary and Tympanic Temperature (신생아의 직장체온과 고막 및 액와체온과의 비교)

  • Hwang Jin-Soon;Sohng Kyeong-Yae
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.4 no.2
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    • pp.351-358
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    • 1997
  • Body temperature should be measured accurately to assess neonate's condition for proper care. Temperatures measured in rectal, axillary and tympanic site were compared in 129 normal neonates to find out proper nursing time for measuring temperature and the validity of fever detection. The results were as follows : 1. Mean temperatures of axillary and tympanic site($36.85^{\circ}C,\;37.12^{\circ}C$) were significantly lower than those of rectal site($37.19^{\circ}C$). 2. Mean nursing time for measuring body temperature was significantly higher and lower in axillary and tympanic temperatures(159.49 seconds, 11.07 seconds) than in rectal temperature(105.62 seconds). 3. Tympanic and axillary temperatures were significantly correlated with rectal temperature (r=0.85, r=0.78) and the significant correlation was demonstrated between tympanic and axillary temperatures(r=0.76). 4. Sensitivity, specificity, positive and negative predictive values were 0.87, 0.90, 0.72, 0.96 for detecting fever respectively. The above findings indicated that the tympanic thermometer offers a useful alternative to conventional methods.

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Validation of the Risk Prediction Tool for Wound Infection in Abdominal Surgery Patients (복부 수술환자의 수술부위 감염 위험 예측 도구의 타당도 검증)

  • Jung, Hyun Kyoung;Lee, Eun Nam
    • Journal of Korean Critical Care Nursing
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    • v.15 no.3
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    • pp.75-87
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    • 2022
  • Purpose : This retrospective investigation study aimed to determine the predictive validity of superficial surgical site infection assessment tools by measuring the risk score at the surgical site. Methods : This study included patients hospitalized to the general surgery department of a Hospital from January 2021 to December 31, 2021. The inclusion criteria were age ≥19 years, general abdominal surgery under general anesthesia, and hospital stay longer than 2 days. Patients who had undergone transplantation were excluded. Results : Tool validity results showed that tools including surgical time and operative procedure were more accurate than previously developed tools, with a sensitivity of 71.1%, specificity of 71.4%, positive prediction of 12.3%, negative prediction of 97.8%, and area under the curve of 0.743 (95% confidence interval, 0.678~0.745). The tool's cut-off score was 15, and the risks of infection was increased by 6.14 times at or above this cut-off point. Preoperative hair removal period, surgical wound classification, surgery time, body temperature on the second day after surgery, drainage tube type, and suture type affected the risk of infection at the surgical site. Conclusion : The incidence of healthcare-associated infections has been declining in the past decade; however, surgical site infections still account for a considerable proportion. Therefore, early identification of high-risk groups for surgical site infection is crucial for reducing the incidence of surgical site infection using appropriate management.

Evaluating the Predictive Validity for the New Pressure Sores Risk Assessment Scale (수정욕창위험 사정도구의 예측타당도 평가)

  • Kim, Si-Sook;Choi, Kyung-Sook
    • Korean Journal of Adult Nursing
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    • v.16 no.2
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    • pp.183-190
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    • 2004
  • Purpose: The purpose of this study was To exam the skin and pressure sore and To evaluate the predictive validity for the new pressure sores risk assessment scale. Method: There was finally 211 neurosurgery subject admitted in Chung-Ang Univ. Hospital from Nov, 11, 2002 to Feb, 11, 2003. Data was collected three times per week from 48-72hr after admission until incidence of pressure sores or discharge or die. Inclusion criteria were; (1) no pressure sores at admittance, (2) at least 3 times assessment, (3) adults older than 16yrs, (4) patients consent to participate in study. Result: 1. 34 case of 211 developed pressure sores(11.6%). 2. The coccyx area was the most common occurrence site of pressure sores. 3. At the cutoff point 23 of sensitivity 100%, specificity 76.3% was higher in 2003 than specificity 63.8% at the cutoff point 26 of sencitivity 100% in 1991. 4. "Moisture" of subscale for pressure sores risk factor was the strongest predictor. Conclusion: This study shows that the New Pressure Sores Risk Assessment Scale still predict the risk of developing pressure sores in neurosurgical subject.

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Diagnosis of Cervical Tuberculous Lymphadenitis with Fine Needle Aspiration Biopsy Under Ultrasonographic Guides (초음파 유도하 세침 흡인 생검을 이용한 경부 결핵성 림프절염의 진단)

  • Suh Kwang-Wook;Park Cheong-Soo;Lee Jong-Tae;Lee Kwang-Gil
    • Korean Journal of Head & Neck Oncology
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    • v.8 no.2
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    • pp.91-96
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    • 1992
  • The efficacy of the fine needle aspiration biopsy and cytological examination(FNABC) under ultrasonographic(US) guides for the diagnosis of cervical tuberculous lymphadenitis was assessed. There were one hundred and one patients whose neck masses were proven to be tuberculous lymphadenites with cytologic and/or histologic diagnosis. The physical characteristics shown by US revealed that all the cases were multiple lesions. Multiregional lesions were found in 80 cases(79.1%) and 19 cases(18.8%) were the bilateral lesion. The region V was the most prevalent site(n=69, 68.3%). US findings revealed 92 cases(90.9%) showed hypoechoic lesions and 9(9.1%) showed mixed echo patterns. There was no hyperechoic lesion (p<0.05). The sensitivity of FNABC was 77.2% and specificity was 99.0%. Diagnostic accuracy was 85.0%. There was no complication during the procedures. FNABC for the diagnosis of cervical tuberculous lymphadenitis is a safe, convinient procedure and has a high specificity. The pitfall of FNABC the low sensitivity, seemed to be compensated by US evaluations.

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