• 제목/요약/키워드: Self-potential

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Publication Ethics and KODISA Journals

  • KIM, Dongho;YOUN, Myoung-Kil
    • 연구윤리
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    • 제1권2호
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    • pp.1-5
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    • 2020
  • Purpose: The purpose of this paper is to identify the most common misconducts in publication ethics, to demonstrate KODISA journals' management of the misconducts, and to share the findings with future and potential authors of Journal of Research and Publication Ethics (JRPE). Research design, data and methodology: This is an analytical study that explores and examines research and publication ethics and misconducts. Results: Based on literature review, major publication misconducts that many academic journals had to contend with over the years encompass unethical authorship, including ghost, guest, and gift authorships, data falsification and fabrication, plagiarism, including self-plagiarism, submission and publication fraud (multiple submission and publication), and potential conflicts of interest. Conclusions: KODISA and its journals have strived and done great work in making the journals transparent and in combatting the issues associated with plagiarism, including self-plagiarism. However, it seems there is no mechanism to detect or deter unethical authorship, conflicts of interest, and fabrication and falsification misconducts. The inception of JRPE signifies how KODISA and its journals continuously view research and publication ethics as their foremost important factor in maintaining and improving the academic journals. The future research and scholastic manuscripts of JRPE could provide necessary and updated information about research and publication ethics, practices, and misconducts.

2차원 양자 역학적 해석에 의한 고속 통신용 $Al_{x}Gal{-x}As/Ga_{x}In1$_{-x}$As/GaAs HEMT 소자의 전자 농도 및 전위분포 계산 (Calculation of Electron concentration and Electrostatic potential profile for $Al_{x}Gal{-x}As/Ga_{x}In1$_{-x}$As/GaAs HEMT device by 2-Dimensional Quantum Mechanical analysis))

  • 송영진;황호정
    • 전자공학회논문지A
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    • 제30A권3호
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    • pp.76-87
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    • 1993
  • We present a self-consistent, 2-dimensional solution of the Poisson and Sch rodinger equation based on the finite difference method with a nonuniform mesh size for a AlGaAs/GaInAs/GaAs HEMT devide. During the interative self-consistent calculation, however, we calculate Schrodinger equation only a some region of device, not a fully region in order to save the moemory and the speed-up of computation, and then use the approximated data for the other region using by a interpolation method with a given values. Also we adopt the proper matrix transformation method that allows preservation of the symmetric, form of the discretized Schrodinger equation, even with the use of a nonumiform mesh size, therefor, can reduce the computation time. We calculate the wavefunction, eigenstates and the electron concentration uat channel layer nder the thermal equilibrium and the biased conditions, respectively. Also,these parameters are used to solve 2-dimensional tdistribution of potential in he entire region of device. It is proved that the method is very efficient in finding eigenstages extending over relatively large spatial area without loss of accuracy. So, it can be used rather easily in any sarbitrary modulation doped utucture.

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Electrochemical Detection of Self-Assembled Viologen Modified Electrode as Mediator of Glucose Sensor

  • Lee, Dong-Yun;Choi, Won-Suk;Park, Sang-Hyun;Kwon, Young-Soo
    • Journal of Electrical Engineering and Technology
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    • 제4권1호
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    • pp.106-110
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    • 2009
  • An amperometric glucose biosensor has been developed using viologen derivatives as a charge transfer mediator between a glucose oxidase (GOD) and a gold electrode. A highly stable self-assembled monolayer (SAM) of thiol-based viologen was immobilized onto the gold electrode of a quartz crystal microbalance (QCM) and GOD was immobilized onto the viologen modified electrode. This biosensor response to glucose was evaluated amperometrically in the potential of -300mV. Upon immobilization of the glucose oxidase onto the viologen modified electrode, the biosensor showed rapid response towards glucose. Experimental conditions influencing the biosensor performance, such as pH potential, were optimized and assessed. This biosensor offered excellent electrochemical responses for glucose concentration below ${\mu}$ mol level with high sensitivity and selectivity and short response time. The levels of the RSDs (<5%) for the entire analyses reflected the highly reproducible sensor performance. A linear calibration range between the current and the glucose concentration was obtained up to $4.5{\times}10^{-4}M$. The detection limit was determined to be $3.0{\times}10^{-6}M$.

Viologen 유도체를 전하전달체로 이용한 Glucose 센서의 $H_2O_2$ 검출 특성 ($H_2O_2$ Detection Property of Glucose Sensor using Self Assembled Viologen Modified Electrode as Mediator)

  • 이동윤;최원석;박상현;권영수
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2007년도 Techno-Fair 및 추계학술대회 논문집 전기물성,응용부문
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    • pp.86-87
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    • 2007
  • An amperometric glucose biosensor has been developed using viologen derivatives as electron mediator of glucose oxidase (GOD) at Au electrode. Highly stable self assembled monolayer (SAM) of thiol-based viologen is immobilized onto the Au electrode followed byGOD is immobilized onto the viologen modified electrode. This biosensor response to glucose was evaluated amperometrically in the potential of -300 mV. Upon immobilization of glucose oxidase onto the viologen modified-electrode, the biosensor showed rapid response towards glucose. Experimental conditions influencing the biosensor performance such as, pH, potential were optimized and assessed. This biosensor offered an excellent electrochemical response for glucose concentration below ${\mu}mol$ level with high sensitivity and selectivity and short response time. The levels of the RSD's (< 5 %) for the entire analyses reflected the highly reproducible sensor performance. Using the optimized a linear relationship between current and glucose concentration was obtained up to $4.5{\times}10^{-4}$ M. In addition, this biosensor showed well reproducibility and stability.

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롤랑 바르트의 텍스트로 본 렘 콜하스, SANAA, 소우 후지모토 건축의 특성 (A Study on the Works of Rem Koolhaas, SANAA, Sou Fujimoto through the Text of Roland Barthes)

  • 박주석;김동진
    • 한국실내디자인학회논문집
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    • 제26권1호
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    • pp.13-24
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    • 2017
  • The semiotics philosopher Roland Barthes declared 'the death of the author'. This means a sense of skepticism about author-centered writing in literature, and that readers and critics must also change their reading attitudes. In architecture, too, author-centered design appears. Architects sometimes try to express their will and concepts strongly through their work. However, this architecture is oriented toward identity, self-revealing, self-centered, and eventually without inspiration. On the other hand, the signifier does not result in a single meaning, and it is architecture as text that allows readers to enjoy the pleasure of deciphering. The purpose of this study is to investigate that unilateral by the will of the architect. Or whether there is a potential for non-intelligence and the possibility of generating meaning. In particular, we will analyze the works of Rem Koolhaas, SANAA and Sou Fujimoto to see if they are free from the will of the architect and can obtain the user's true freedom. As a result, we want to reveal the potential of various interpretations by users in contemporary architecture.

The effect of different adhesive system applications on push-out bond strengths of glass fiber posts

  • Kivanc, Bagdagul Helvacioglu;Arisu, Hacer Deniz;Uctasli, Mine Betul;Okay, Tufan Can
    • The Journal of Advanced Prosthodontics
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    • 제5권3호
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    • pp.305-311
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    • 2013
  • PURPOSE. Over the past years, the adhesion of fiber posts luted with simplified adhesive systems has been a matter of great interest. The aim of this study was to assess the post retentive potential of a self-adhesive resin cement using different adhesive systems to compare the push-out bond strengths of fiber posts. MATERIALS AND METHODS. The post spaces of 56 mandibular premolar roots were prepared and divided into 4 experimental groups and further divided into 2 subgroups according to testing time (n=7). The fiber posts (Rely X Fiber Post) were luted with a self-adhesive resin cement (RelyX Unicem) and one of the following adhesive systems: no adhesive, a total-etch adhesive resin (Single Bond), a two-step self-etch adhesive resin (Clearfil SE Bond) and a one-step self-etch adhesive resin (Clearfil S3 Bond). Each root was cut horizontally, and 1.5 mm thick six root segments were prepared. Push-out tests were performed after one week or three months (0.5 mm/min). Statistical analysis were performed with three-way ANOVA (${\alpha}$=.05). RESULTS. Cervical root segments showed higher bond strength values than middle segments. Adhesive application increased the bond strength. For one week group, the total-etch adhesive resin Single Bond showed higher bond strength than the self-adhesive resin cement RelyX Unicem applied without adhesive resin at middle region. For 3 months group, the two-step self-etch adhesive resin Clearfil SE Bond showed the highest bond strength for both regions. Regarding the time considered, Clearfil SE Bond 3 months group showed higher bond strength values than one week group. CONCLUSION. Using the adhesive resins in combination with the self-adhesive resin cement improves the bond strengths. The bond strength values of two-step self-etch adhesive resin Clearfil SE Bond improved as time passes.

간호대학생의 셀프리더십 및 진로태도성숙, 전공만족도에 관한 연구 (A Study on Self Leadership, Maturity of Career Attitude and Major Satisfaction in Nursing Students)

  • 오은진;공정현
    • 대한통합의학회지
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    • 제7권1호
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    • pp.135-144
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    • 2019
  • Purpose : This study examines the relationship among nursing students' self-leadership, the maturity of their career attitudes, and satisfaction with their studies to investigate these elements' impact on nursing students' satisfaction with their major course of study. Methods : A total of 236 students enrolled in the College of Nursing were identified as potential research subjects. The study was conducted between October 1 and November 2, 2017. A structured questionnaire was used to investigate the students' self-leadership, the maturity of their career attitudes, and satisfaction with their major course of study. SPSS for Windows 20.0 was used for statistical analyses. Results : The study's results found an average score for self-leadership among nursing students was 3.61 out of 5, their average score for career attitude maturity was 3.14 out of 5, and the their average score for career attitude maturity was 3.14 out of 5, and the average satisfaction level was 3.79 out of 5. These results indicate that the students' levels of satisfaction with the major are higher when their levels of self-motivation are stronger. In addition, the motivation for application, self-motivation, and satisfaction with academic subjects had an influence on their satisfaction with the major, where the explanatory power was 32.7 %. Conclusion : Based on these results, the development of self-motivation and a curriculum that can improve students' satisfaction with their academic subjects is necessary to enhance nursing students' satisfaction with their major course of study.

IT융합제품 잠재구매자의 외부정보원천 활용에 대한 연구 : 스마트폰 잠재구매자를 중심으로 (Use of External Information Sources by Potential Adopters of IT Convergence Products: Focusing on Potential Adopters of Smartphone)

  • 유재흥;최새솔;최문기
    • 한국콘텐츠학회논문지
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    • 제11권10호
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    • pp.217-233
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    • 2011
  • 본 연구에서는 IT융합제품 구매 결정에 있어 잠재 구매자들이 어떻게 외부 정보를 활용하는지를 대표적 IT융합제품인 스마트폰 사례를 중심으로 살펴보고 있다. 외부 정보 원천 (external information)의 활용이 중요시 되는 이유는 스마트폰과 같은 신기술 기반의 융합제품이 더 이상 제품 사양만으로 차별화되는 탐색재가 아닌 사용자 인터페이스, 애플리케이션 이용 등으로부터 체득한 경험정보가 더욱 중요시되는 경험재적 성격을 포함하기 때문이다. 기존의 연구에서는 이러한 신기술 기반의 제품 선택에 있어 지인들이나 일반소비자들의 구전이 중요한 역할을 하는 것을 검증하였으나 온라인, 오프라인을 통해 다양한 정보 원천의 영향력을 비교 검증하는 실증 연구는 거의 없었다. 본 연구에서는 기존 연구를 참조하여 외부 정보 원천을 기업광고, 지인집단, 전문가집단, 일반소비자집단, 언론매체로 구분하고 이러한 외부 정보 원천이 어떻게 스마트폰의 구매 결정에 영향을 미치는 지를 정보 원천의 속성, 정보의 품질인식 측면에서 실증 분석하였다. 특히, 잠재구매자의 자기조절초점(self-regulatory focus)에 따라 정보 원천에 대한 속성 인식과 각 정보원천으로부터 발생한 정보에 대한 품질 평가에 차이가 존재함을 밝혔다.

The Abuse Potential of α-Piperidinopropiophenone (PIPP) and α-Piperidinopentiothiophenone (PIVT), Two New Synthetic Cathinones with Piperidine Ring Substituent

  • Botanas, Chrislean Jun;Yoon, Seong Shoon;de la Pena, June Bryan;dela Pena, Irene Joy;Kim, Mikyung;Woo, Taeseon;Seo, Joung-Wook;Jang, Choon-Gon;Park, Kyung-Tae;Lee, Young Hun;Lee, Yong Sup;Kim, Hee Jin;Cheong, Jae Hoon
    • Biomolecules & Therapeutics
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    • 제25권2호
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    • pp.122-129
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    • 2017
  • A diversity of synthetic cathinones has flooded the recreational drug marketplace worldwide. This variety is often a response to legal control actions for one specific compound (e.g. methcathinone) which has resulted in the emergence of closely related replacement. Based on recent trends, the nitrogen atom is one of the sites in the cathinone molecule being explored by designer type modifications. In this study, we designed and synthesized two new synthetic cathinones, (1) ${\alpha}-piperidinopropiophenone$ (PIPP) and (2) ${\alpha}-piperidinopentiothiophenone$ (PIVT), which have piperidine ring substituent on their nitrogen atom. Thereafter, we evaluated whether these two compounds have an abuse potential through the conditioned place preference (CPP) in mice and self-administration (SA) in rats. We also investigated whether the substances can induce locomotor sensitization in mice following 7 days daily injection and challenge. qRT-PCR analyses were conducted to determine their effects on dopamine-related genes in the striatum. PIPP (10 and 30 mg/kg) induced CPP in mice, but not PIVT. However, both synthetic cathinones were not self-administered by the rats and did not induce locomotor sensitization in mice. qRT-PCR analyses showed that PIPP, but not PIVT, reduced dopamine transporter gene expression in the striatum. These data indicate that PIPP, but not PIVT, has rewarding effects, which may be attributed to its ability to affect dopamine transporter gene expression. Altogether, this study suggests that PIPP may have abuse potential. Careful monitoring of this type of cathinone and related drugs are advocated.

재창업자의 긍정심리자본이 흡수역량을 통해 의사결정의 질에 미치는 영향에 대한 연구 (A Study on the Influence of Positive Psychological Capital on the Quality of Decision-Making through Absorption Capacity of Re-founders)

  • 전정구;서영욱
    • 벤처창업연구
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    • 제15권6호
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    • pp.155-166
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    • 2020
  • 본 연구는 재창업기업 대표를 대상으로 재창업자의 긍정심리자본 요인인 자기효능감, 희망, 회복탄력성이 흡수역량에 미치는 영향과 재창업자의 흡수역량이 의사결정의 질에 미치는 영향을 고찰하였다. 특히 본 연구는 재창업자에게 심리적 요인들 중 긍정심리자본이 어떠한 영향을 미칠까하는 궁금함에서 출발하였다. 연구대상은 중소벤처기업진흥공단으로부터 재창업 지원자금을 받은 재창업기업 대표를 대상으로 실시하였으며, 조사한 144명의 표본자료를 SPSS 24.0을 활용하여 빈도 분석을 Smart PLS 3.0을 활용하여 구조모형방정식 분석을 실시하였다. 재창업자의 심리적 특성인 긍정심리자본을 자기효능감, 희망, 회복탄력성의 3가지 요인으로 구분하여, 잠재적 흡수역량과 실행적 흡수역량에 미치는 영향을 분석한 결과, 자기효능감은 잠재적 흡수역량에 긍정적인 영향을 미치는 것으로 나타났고, 실행적 흡수역량에는 영향을 미치지 않는 것으로 나타났으며, 희망은 잠재적 흡수역량에 영향을 미치지 않는 것으로 나타났고, 실행적 흡수역량에는 긍정적인 영향을 미치는 것으로 나타났다. 회복탄력성은 잠재적 흡수역량 및 실행적 흡수역량에 긍정적인 영향을 미치는 것으로 나타났다. 그리고 잠재적 흡수역량 및 실행적 흡수역량은 의사결정의 질에 긍정적 영향을 미치는 것으로 나타났다. 이와 같은 연구결과를 바탕으로 실무적 시사점과 이론적 시사점을 제공하고자 한다.