• 제목/요약/키워드: Utility Factors

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가상화폐의 수용에 영향을 미치는 요인 연구: TAM을 중심으로 (A Study of the Factors Influencing Acceptance of Virtual Currency: Focused on Technology Acceptance Model)

  • 구승환;왕핑;선팅팅
    • 한국산학기술학회논문지
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    • 제15권7호
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    • pp.4122-4131
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    • 2014
  • 본 연구는 최근 화두로 떠오르고 있는 가상화폐의 특징에 대해 고찰하고, 도출된 가상화폐의 특징이 어떠한 과정을 거쳐 소비자의 수용에 영향을 미치는지에 대해 살펴보았다. 이를 위해 기술수용모형을 사용하였으며, 구조방정식 분석을 통해 연구결과를 도출하였다. 연구결과, 신뢰성과 범용성은 유용성과 용이성에 유의한 영향을 미치는 것으로 나타났으며, 보안성은 영향을 미치지 않는 것으로 나타났다. 유용성은 태도와 만족에 직접적인 영향을 미치지는 않았으며, 용이성은 유용성과 태도, 만족에 직접적인 영향을 미치고 있었다. 마지막으로 태도와 만족은 이용의도에 긍정적인 영향을 주는 것을 알 수 있었다. 본 연구결과를 통해 실무에서 가상화폐에 대한 효과적이고, 효율적인 전략을 입안할 수 있을 것이다.

shRNA Mediated RHOXF1 Silencing Influences Expression of BCL2 but not CASP8 in MCF-7 and MDA-MB-231 Cell Lines

  • Ghafouri-Fard, Soudeh;Abdollahi, Davood Zare;Omrani, Mirdavood;Azizi, Faezeh
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권11호
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    • pp.5865-5869
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    • 2012
  • RHOXF1 has been shown to be expressed in embryonic stem cells, adult germline stem cells and some cancer lines. It has been proposed as a candidate gene to encode transcription factors regulating downstream genes in the human testis with antiapoptotic effects. Its expression in cancer cell lines has implied a similar role in the process of tumorigenesis. The human breast cancer cell lines MDA-MB-231 and MCF-7 were cultured in DMEM medium and transfected with a pGFP-V-RS plasmid bearing an RHOXF1 specific shRNA. Quantitative real-time RT-PCR was performed for RHOXF1, CASP8, BCL2 and HPRT genes. Decreased RHOXF1 expression was confirmed in cells after transfection. shRNA knock down of RHOXF1 resulted in significantly decreased BCL2 expression in both cell lines but no change in CASP8 expression. shRNA targeting RHOXF1 was shown to specifically mediate RHOXF1 gene silencing, so RHOXF1 can mediate transcriptional activation of the BCL2 in cancers and may render tumor cells resistant to apoptotic cell death induced by anticancer therapy. shRNA mediated knock down of RHOXF1 can be effective in induction of apoptotic pathway in cancer cells via BCL2 downregulation, so it can have potential therapeutic utility for human breast cancer.

우리나라 수산물가공기업의 국제화전략 (Internationalization Strategy of the Fisheries - Processing Firms of Korea)

  • 하종욱;박영병;어윤양
    • 수산경영론집
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    • 제22권2호
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    • pp.19-51
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    • 1991
  • The objectives of the study are to look into the fisheries processing industry, analyze problems the industry has, and develop strategies for the industry to take care of the problems. The study was performed in two different dimensions : industry level and firm level. Nevertheless, the study focused on the following main problem areas raw material, production, technology development, internationalization, and managerial performance. The secondary data were utilized to analyze problems at the industry level, For analyzing the firm level situation, an empirical study by using a mail survey with a questionnaire was accomplished. The main problems found were as follows : First, difficulty in procuring raw material was the most serious and main problem. It was caused, externally, by the announcement of 200 nautical miles by most of fishery abundant countries and, internally, by drying fishery resources in the nation's coastal areas ; Second, the rate of fishery processing has been continuously increased and the degree of the processing has also been sophisticated, which implies the pattern of demand for the fishery has been changing widely and deeply. The industry, however, seemed to be unable to meet the consumers' satisfaction ; Third, with the importance of technology for ensuring the changing demands in the fishery processing industry, there has been little effort in research and development both at industry level and at the firm level ; Next, the industry has mainly involved in exporting in association with internationalization. Not to mention about foreign direct investment, technology transfer was not active ; Finaliy, most of firms were densely located in a few areas. The managerical performance in terms of main financial ratios still needs to be improved. Thus, strategies, which would take care of the repective problems, were developed. At industry level, the strategies were developed by reasoning mostly based on the findings from the literature survey. A scheme for internationalization of the firms was suggested. This was made by extracting the factors which would differentiate the firms' internationalization stages. In order to achieve this analysis, discriminant approach was employed. Despite the utility of the findings, it was mostly emphasized that harmonious efforts among government, the industry supporting institutions such as banks, and firms are needed for the successful operation of the strategies. Also, a list of areas for further study was provided especially in relation to the validity threatening parts of the study.

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테이핑 요법으로 호전된 요통환자의 요추전만도 변화 1례 (Change of Lumbar Lordotic angle by Taping Therapy on Low Back Pain Patient with Lumbar Hyperlordosis ; A Case Report)

  • 윤유석;이종수;문상현
    • 대한추나의학회지
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    • 제4권1호
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    • pp.157-165
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    • 2003
  • Low back pain (LBP) is a significant in today's society, with lifetime include factors associated with LBP ar reporter. Among the causes, aberration of posture may play a role in the development of LBP. Many investigators have assessed the curvature of spine in standing posture. But LBP is associated with Lumber Hyperlordosis of Hyperlordosis is controversial Subjects: In conservative treatment(acupuncture, herb med, manipulation & TENS. exercise, potural correction) for a 40 years old woman who had low back pain(V AS) be caused by decrease lumbar lordotic angie. Objectives: The object is change of lumbar lordotic angle of a 40 years old woman who had low back pain with Lumbar hyperlordosis, In conservative treatment. Method: In conservative treatment, We added taping therapy(mechanical correction taping of Kinesio Taping) about Lumbar Lordosis. Conclusion: We experienced a 40 years old woman who had love pack pain with Lumbar hyperlordosis. In conservative treatment, Her pain was Improved by additional taping therapy In company with decrease of Lumbar Lordosis. 1. abnormal spinal curvature, specially lumbar hyperlordosis act on induction & perpetuation agent for low back pain 2. In a patient had low back pain with lumbar hyperlordosis, change of lumbar lordotic angle is of utility value for the effect of treatment and assessment of prognosis. 3. pain control is more relative with change of lumbosacral angle than lumbar lordotic angle, in patient had low back pain with lumbar hyperlordosis. 4. mechanical taping therapy with elastic adhesive tape is effective for patient had low back pain with lumbar hyperlordosis

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초음파 비파괴검사의 신뢰도 평가 모델 (Models of Reliability Assessment of Ultrasonic Nondestructive Inspection)

  • 박익근;박은수;김현묵;박윤원;강석철;최영환;이진호
    • 비파괴검사학회지
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    • 제21권6호
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    • pp.607-611
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    • 2001
  • 초음파검사 시스템은 검사자, 검사장비, 검사절차서로 구성되어진다. 따라서 각각의 구성의 성능에 따라 초음파검사의 신뢰도가 좌우되며, 또한 검사환경이나 검사체의 재질, 결함의 유형에 따라서도 검사의 신뢰도는 영향을 받게된다. 이러한 다양한 인자들로 인해 비파괴검사의 신뢰도를 평가하는 것이 쉽지 않다. 본 연구에서는 로지스틱 모델과 몬테 카를로 시뮬레이션을 이용하여 초음파검사의 신뢰도를 척도할 수 있는 검출확률을 평가하고자 한다. 신뢰도 평가의 유용성을 검증하기 위해 원진배관에 대한 순회시험의 데이터에 신뢰도 평가 모델을 적용하였다.

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Verification of the Korean Version of the Dental Fear Survey

  • Kim, Ah-Hyeon;Ahn, Eun-Suk;An, So-Youn
    • Journal of Dental Anesthesia and Pain Medicine
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    • 제19권6호
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    • pp.361-367
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    • 2019
  • Background: Although studies on dental fear in relation to sex and age have been conducted, there have been few nationwide studies particularly on the youth sector. In addition, no validity and reliability verifications have been implemented for new research groups on the Korean version of the Dental Fear Survey (K-DFS). Therefore, this study aimed to apply the K-DFS developed in a previous study on Korean youth to draw conclusions on dental fear among the youth. Methods: This study used the K-DFS, a Korean translation of Kleinknecht's Dental Fear Survey for elementary school, middle school, and high school students. This study selected 2,161 young people of various ages as participants and increased the validity of the research results by expanding nationwide the scope of the study area. Results: Differences in fear levels according to sex were higher in boys fear behavior scores than in girls' regarding dental treatment (P < 0.05). Students with dental fear had higher scores on items associated with dental treatment and fear of dental stimuli compared with students without dental fear (P < 0.05). Differences were observed among the three groups (P < 0.05). However, the results of logistic regression analysis showed no statistically significant differences for dental visits based on sex, grade, and other subcomponents (P > 0.05). Conclusion: By verifying the validity of the newly developed K-DFS, this research confirmed its utility as a dental fear questionnaire. Therefore, there can be no objection that the grounds for criticism have been established according to conventional wisdom. In the future, however, developing and studying the limits of K-DFS that overcome the factors of dental fear, especially pain, will help reduce dental fear in adolescents.

Comparison of Placenta PCR and Maternal Serology of Aborted Women for Detection of Toxoplasma gondii in Ardabil, Iran

  • Matin, Somaie;Shahbazi, Gholamreza;Namin, Shervin Tabrizian;Moradpour, Rouhallah;Feizi, Farideh;Piri-dogahe, Hadi
    • Parasites, Hosts and Diseases
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    • 제55권6호
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    • pp.607-611
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    • 2017
  • Primary maternal infection with toxoplasmosis during pregnancy is frequently associated with transplacental transmission of the parasite to the fetus. This study was conducted to test the utility of PCR assay to detect recent infections with Toxoplasma in aborted women at various gestational ages who referred to Obstetrics and Gynecology Department of Alavi Hospital in Ardabil during 2014 and 2016. Two hundred women with a history of single or repeated abortion were investigated in this study. Blood samples were tested for specific anti-Toxoplasma IgM and IgG antibodies by ELISA. According to the results, 53.5% of the women under study were positive for anti-Toxoplasma antibodies: 4.0% of them had IgM, 43.0% had IgG, and 6.5% had both IgM and IgG. Subsequently, Nested-PCR analysis was used to detect T. gondii DNA in the placenta of subjects. In 10.5% of the women, the results were positive for 529 bp element of T. gondii. Among them, 5 (23.8%) cases were IgM positive, 1 (4.8%) case was IgG positive, and 11 (52.4%) were both IgM and IgG positive. In 4 (19.0%) patients, none of the antibodies were found to be positive. In total, 16 patients had positive results in both ELISA and PCR methods, and 174 cases had negative results for new infection. The findings of this study revealed that T. gondii might be one of the significant factors leading to abortion, and that the analysis of placenta can be important in order to achieve increased detection sensitivity.

교통법규 위반 범칙금의 효율적 수준 설정 모형 개발 (신호와 제한속도 위반 중심) (Modeling of the Effective Levels of Traffic Violation Fines)

  • 장일준
    • 대한교통학회지
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    • 제27권3호
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    • pp.111-118
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    • 2009
  • 교통사고 발생은 도로 여건이나 운전자 의식 등의 문제로 발생할 수 있으나 운전자 상호간 또는 운전자와 보행자 사이의 지켜야할 사항을 규정하는 교통법규를 위반할 경우 차량 또는 보행자의 교통사고 노출 가능성이 높아져 교통사고로 이어지는 경우도 상당부분 발생한다. 따라서 교통안전 선진국에서는 이러한 메커니즘의 교통법규 준수율을 높이기 위해서 교통법규를 위반하는 운전자들이 경제적으로 부담을 느껴 "교통법규 준수"라는 행동을 선택할 수 있을 정도의 수준으로 교통법규 위반 범칙금을 책정하고 있으며, 경제가 발전 할수록 범칙금 수준도 향상 시키고 있는 실정이다. 반면, 우리나라는 국민 정서 문제를 앞세워 지난 20년간 교통법규 위반 범칙금 수준을 크게 향상시키지 않았다. 따라서 본 연구는 운전자의 교통법규 준수율을 높일 수 있는 방안에 대하여 경제논리를 적용하여 효율적 교통법규 위반 범칙금 수준을 책정하는 방안을 도출하였다. 속도위반 및 신호위반 등 교통사고와 연관성이 높은 교통법규 사항에 대하여 운전자의 "법규 위반" 또는 "법규 준수"의 행동 선택에 있어서의 기대효용을 수치화 하여 현재 운전자가 기대하는 "교통법규 위반시 단속기대 확률"을 유지할 경우 적정 범칙금 수준과 현재의 범칙금 수준을 유지할 경우 "효율적 단속기대 확률" 등 두 가지의 교통정책 방안을 제시하였다.

농촌주택 공간구성에 따른 장애요소분석 및 개선대안에 관한 연구 - 강원도 태백시 주택을 중심으로 - (A Study on Improvement of Rural Housing Space by Analysing of Barrier the Space Organization - Focused on Housing in Taebaeksi -)

  • 안성준;김인순;이규일
    • 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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    • 제20권4호
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    • pp.17-25
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    • 2014
  • Purpose: Generally, rural housing in Korea have had target of people who are in good physical health rather than the disabled. Therefore, it is difficult to offer high quality residential environment for the elderly and the disabled. The purpose of this study is to propose the ways to promote ease and safety in the rural housing. Methods: This study evaluates the accidents, improvement factors, satisfactions, complaints by space of 153 rural housing in Taebaeksi. Results: This study divides the a rural house into 7 sectors : a passage to entrance, an entrance hall, a livingroom, a bedroom, a bathroom, a kitchen, and utility room. this study propose the following plan that rural housing to be barrier free space. First, in passage to entrance of the house, people with disabilities should not experience difficulties in walking, so installing ramps to remove the stepped slope grade without slip so that the floor finish should be. Second, entrance hall need more space to change and keep wheelchair. Third, switches and handle should be installed various height and form depend on the behavior of residents. Forth, install a drain to make no changes in level of bathroom. Implications: This research could be the basic data to renovate the rural housing.

청소년의 상징적 소비성향에 관한 연구 (A Study in The Propensity for Symbolic Consumption of Adolescents)

  • 김영숙;이경옥;김민정
    • 한국생활과학회지
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    • 제14권2호
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    • pp.277-292
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    • 2005
  • The objectives of this study are to examine the degree of propensity for symbolic consumption among adolescents and its factors, and to investigate the effects of demographic variables - sex, grade, father's education, mother's education, father's job, mother's job, monthly allowance, monthly household income - self-esteem, and socialization agents variables - parents, friends, mass media - on the propensity. In this study, the propensity for symbolic consumption is defined as the propensity to consume products through their affective, subjective, and symbolic value rather than through their practical and utility value. The data used in this study were collected from 509 adolescents who are in the 2nd grade of middle or high schools in Pusan. The research results can be summarized as follows: 1. The propensity for symbolic consumption were found to have significant differences according to sex, father's education, mother's education, mother's job, and monthly allowance. 2. It differs significantly according to adolescents' self-esteem. That is, the lower self-esteem adolescents have, the higher propensity for symbolic consumption they show. 3. It also differs significantly according to the degree of communication with parents, the degree of accepting friends' view, the degree of communication with friends, the degree of informative influence from friends, and the degree of taking in mass media.

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