• Title/Summary/Keyword: Affinity Analysis

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Can Brand Affinity Outperform Political Parties' Rejection When Nominating Celebrity Politicians in a Post-Rebellion Multi-Party Context?

  • Maya A. BouNassif;Alaaeldin Abbass;Amal El Kurdi
    • Asian Journal for Public Opinion Research
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    • v.11 no.2
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    • pp.107-144
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    • 2023
  • In competitive political contexts, sustaining power is the ultimate goal for political parties. Nominating celebrity politicians can be a double-edged sword for parent brands in attracting votes and influencing voting intention. This study contributes to the moderating role of brand affinity towards celebrity politicians. It considers celebrities' cognitive perceived benefits and voting intention relationship in a multiparty parliamentarian election. A cross-sectional survey with a stratified proportional random sampling technique in fifteen Lebanese districts ensured a representative sample. One thousand two hundred sixty-nine responses were found eligible for analysis. Findings indicate that brand affinity positively moderates the negative relationship between perceived benefits and voting intention. This study offers a new understanding of celebrity politicians' implementation strategy and campaign management and considers the contribution of the affective intelligence theory. It provides implications, limitations, and promising directions for future research on celebrity politicians.

Failure Analysis of Metallic Components (금속소재 부품의 고장분석 사례)

  • Song Jin-Hwa;Hong Ki-Jung;Chang Chang-Hwan;Kim Young-Sub
    • Journal of Applied Reliability
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    • v.6 no.1
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    • pp.51-61
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    • 2006
  • Failure analyses were conducted on a crank shaft and a chock liner by using X-ray diffraction, optical microscopy and SEM/EDS techniques. In the crank shaft, a crack developed where a maximum tensile stress coincided with band structure formed by hot forging. The maximum tensile stress was observed to originate from volume expansion during high frequency induction heat treatment and the band structure to develop between upper and lower dies during hot forging. In the chock liner, the wear mechanism varied with the chemical affinity and hardness of liner material relative to friction pair of housing liner. Brass of low chemical affinity and hardness compared to housing liner showed uniform adhesive wear. STS 304 and STS 420J2 of high chemical affinity showed galling and scoring respectively.

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Affinity chromatography and capillary electrophoresis for analysis of the yeast ribosomal proteins

  • Goyder, Miriam S.;Willison, Keith R.;Klug, David R.;DeMello, Andrew J.;Ces, Oscar
    • BMB Reports
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    • v.45 no.4
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    • pp.233-238
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    • 2012
  • We present a top down separation platform for yeast ribosomal proteins using affinity chromatography and capillary electrophoresis which is designed to allow deposition of proteins onto a substrate. FLAG tagged ribosomes were affinity purified, and rRNA acid precipitation was performed on the ribosomes followed by capillary electrophoresis to separate the ribosomal proteins. Over 26 peaks were detected with excellent reproducibility (<0.5% RSD migration time). This is the first reported separation of eukaryotic ribosomal proteins using capillary electrophoresis. The two stages in this workflow, affinity chromatography and capillary electrophoresis, share the advantages that they are fast, flexible and have small sample requirements in comparison to more commonly used techniques. This method is a remarkably quick route from cell to separation that has the potential to be coupled to high throughput readout platforms for studies of the ribosomal proteome.

Loss of Potential Biomarker Proteins Associated with Abundant Proteins during Abundant Protein Removal in Sample Pretreatment

  • Shin, Jihoon;Lee, Jinwook;Cho, Wonryeon
    • Mass Spectrometry Letters
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    • v.9 no.2
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    • pp.51-55
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    • 2018
  • Capture of non-glycoproteins during lectin affinity chromatography is frequently observed, although it would seem to be anomalous. In actuality, lectin affinity chromatography works at post-translational modification (PTM) sites on a glycoprotein which is not involved in protein-protein interactions (PPIs). In this study, serial affinity column set (SACS) using lectins followed by proteomics methods was used to identify PPI mechanisms of captured proteins in human plasma. MetaCore, STRING, Ingenuity Pathway Analysis (IPA), and IntAct were individually used to elucidate the interactions of the identified abundant proteins and to obtain the corresponding interaction maps. The abundant non-glycoproteins were captured with the binding to the selected glycoproteins. Therefore, depletion process in sample pretreatment for abundant protein removal should be considered with more caution because it may lose precious disease-related low abundant proteins through PPIs of the removed abundant proteins in human plasma during the depletion process in biomarker discovery. Glycoproteins bearing specific glycans are frequently associated with cancer and can be specifically isolated by lectin affinity chromatography. Therefore, SACS using Lycopersicon esculentum lectin (LEL) can also be used to study disease interactomes.

Binding of Cytokinin to Proteins of Soybean (Glycine max) Leaves (Cytokinin과 대두(Glycine max) 잎단백질의 결합에 대하여)

  • Choung, Chang-Cho;Yoo, Ki-Jung;Park, Chang-Kyu
    • Applied Biological Chemistry
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    • v.29 no.1
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    • pp.10-15
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    • 1986
  • A polyacrylamide gel electrophoresis technique was applied to cytokinin-protein binding assay. Binding of soybean leaf proteins to cytokinin and relative affinities of protein fractions to cytokinin were studied. The electrophoresis technique appeared to be very useful for determination of cytokinin-protein binding, for identification of protein species binding to cytokinin and for comparison of relative affinities of the proteins to cytokinin. The presence of cytokinin-binding proteins in soybean leaves was confirmed from assays with ammonium sulfate precipitation, Sephadex G-25 chromatography, paper chromatography, and electrophoresis. Three groups of cytokinin-binding proteins were identified in the soybean leaf protein extract and two of the three showed low affinity to cytokinin, however, the third one with mobility between $0.0{\sim}0.2$, probably high molecular weight protein (s), showed high affinity in the electrophoretic analysis.

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Component Identification using Domain Analysis based on Clustering (클러스터링에 기반 도메인 분석을 통한 컴포넌트 식별)

  • Haeng-Kon Kim;Jeon-Geun Kang
    • Journal of the Korea Computer Industry Society
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    • v.4 no.4
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    • pp.479-490
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    • 2003
  • CBD is a software development approach based on reusable component and supports easy modification and evolution of software. For the success of this approach, a component must be developed with high cohesion and low coupling. In this paper, we propose the two types of clustering analysis technique based on affinity between use-cases and classes and propose component identification method applying to this technique. We also propose component reference model and CBD methodology framework and perform a ease study to demonstrate how the affinity-based clustering technique is used in component identification method. Component identification method contains three tasks such as component extraction, component specification and component architecting. This method uses object-oriented concept for identifying component, which improves traceability from analysis to implementation and can automatically extract component. This method reflects the low coupling-high cohesion principle for good modularization about reusable component.

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Evaluation of two DNA extraction methods on exhumed bone samples: Ultrafiltration versus column affinity (유골에서 DNA 추출법 비교 연구: Ultrafiltration과 Column affinity)

  • Kim, Soonhee;Hong, Seungbeom;Kemp, Brian M.;Park, Kiwon;Han, Myunsoo
    • Analytical Science and Technology
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    • v.21 no.4
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    • pp.338-343
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    • 2008
  • Extraction of DNA from skeletal material is of great importance in the identification of human remains, but is particularly difficult because the high amount of microbial DNA was often co-extracted with human bone DNA. We found that a phenol/chloroform extraction, followed by ultrafiltration, and cleanup by via the $QIAquick^{(R)}$ PCR purification kit yields higher amounts of human genomic DNA compared with extraction by the column affinity $method^{(R)}$ alone. Ultrafiltration extraction of human DNA from ten exhumed bone samples yielded $0.041-1.120ng/{\mu}L$ DNA (mean = $0.498ng/{\mu}L$ DNA), and purification using the column affinity resulted in $0.016-0.064ng/{\mu}L$ DNA (mean = $0.034ng/{\mu}L$ DNA). Although the STR genotyping by the column affinity method was partially successful, all DNA samples by the ultrafiltration method produced full profiles from the multiplex PCR. The efficiency of STR genotyping was in accordance with the amounts of the human DNA extracted.

Molecular Holographic QSAR Analysis on the Bonding Affinity Constants between Nicotin Acetylcholine Receptors and New 3-Benzylidenemyosmine Analogues and Molecular Design (새로운 3-Benzylidenemyosmine 유도체와 Nicotin Acetylcholine 수용체 사이의 결합 친화력 상수에 관한 HQSAR 분석과 분자설계)

  • Jang, Seok-Chan;Sung, Nack-Do
    • Applied Biological Chemistry
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    • v.50 no.2
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    • pp.127-131
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    • 2007
  • The molecular design and holographic (H) quantitative structure-activity relationships (HQSARs) on the binding affinity constants between new 3-benzylidenemyosmine analogues and nicotin acetylcholine receptors (nAChRs) of American cockroach (Periplaneta. americana L.) were studied quantitatively. The optimized HQSAR model (IV-2) for the binding affinity constants was derived from fragment distinction of hydrogene atoms in fragment size, 5${\sim}$8 bin. The statistical results of the HQSAR model (IVI-2) exhibited the best predictability and fitness for the binding affinity constants based on the cross-validated value (q$^2$=0.507) and non cross-validated value (r$^2_{nev.}$=0.944). From the graphical analyses of atomic contribution maps, it was revealed that the binding affinity constants depends upon the anabaseine ring in molecule and the most active compounds were designed by optimized HQSAR model (VI-2).

An Empirical Analysis of the Exhibition Hall of the Deoksugung Art Museum Perceived by Visitors (공간 환경에 대한 감성평가와 실증분석에 관한 연구 - 덕수궁 미술관 전시실을 중심으로 -)

  • Han, Myoung-Heum;Oh, In-Wook
    • Korean Institute of Interior Design Journal
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    • v.19 no.5
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    • pp.67-74
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    • 2010
  • The purposes of this study are to investigate the dimensions of the sensibility towards a spatial environment perceived by the general public and to present the characteristics of various spaces through empirical analyses. A set of words are selected to describe visitors' perception of a spatial environment based on previous studies, and then they are arranged according to the degree of understanding and suitability. The results of the survey on the sensibility measurement can be summarized as follows: Factor analyses and cluster analyses are conducted on the indicators measuring the general public's perception of the exhibition hall of the Deoksugung Museum, and the following five dimensions are obtained: spatial value, spatial aesthetic, spatial affinity, spatial freshness, and spatial materials. The satisfaction level of visitors regarding the space of the exhibition hall under study is also investigated. A regression analysis is conducted to find a relationship between the satisfaction level of visitors (DV) and the five dimensions (IVs), and the analysis shows that there is a significant relationship. Among the five factors, the 'Spacial Value' and 'Spacial Affinity' are found to Significantly affect visitors' satisfaction. The results of this empirical study show that visitors' affinity towards the exhibition hall of the Deoksugung Art Museum along with the surrounding garden, as well as visitors' appreciation of the social, historical, and cultural value of Deoksugung Palace, are found to greatly affect visitors' overall satisfaction with the spatial environment of the museum.

Biosensing interfaces based on the dendrimer-underlying layer on gold

  • Yun, Hyeon-Cheol;Kim, Hak-Seong
    • 한국생물공학회:학술대회논문집
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    • 2000.11a
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    • pp.52-55
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    • 2000
  • Structually organized mono- and multilayers were developed on gold for the catalytic and affinity biosensing using hyper-branched dendrimers. For the catalytic biosensing interface, a new approach to construct a multilayered enzyme film on the electrode surface was developed. The film was prepared by layer-by-layer depositions of dendrimers and periodate-oxidized glucose oxidase. The voltammograms obtained from the GOx/dendrimer multilayered electrodes revealed that bioelectrocatalytic response is directly correlated to the number of deposited bilayers. From the analysis of voltammetric and ellipsometric signals, the coverage of active enzyme per layer during the layering steps was estimated, demonstrating the spatially-ordered multilayer formation. As an extension of the study, dendrimers having various degrees of ferrocenyl modification were prepared and used. The resulting electrodes were electrochemically characterized, and the density of ferrocenyl groups, active enzyme coverage, and sensitivity were estimated. For the affinity-sensing surrface, a biosensor system based on avidin-biotin interaction was developed. As the building block of affinity monolayer, G4 dendrimer having partial ferrocenyl-tethered surface groups was prepared and used. And the biotinylated and electroactive dendritic monolayer was used for the affinity-sensing surface interacting with avidin. Electrochemical characterization of the resulting biosensor was conducted using free enzyme in electrolyte in terms of degree of surface coverage with avidin and subsequent surface shielding.

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