• Journal of Yeungnam Medical Science
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• 제19권1호
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• pp.28-38
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• 2002

1999년 6월에서 2000년 6월까지 영남대학교 의과대학 부속병원 이비인후과에 내원하여 내시경 검사와 부비동 전산화단층촬영으로 만성 부비동염 혹은 만성 부비동염과 비용으로 진단받고 한 사람의 수술자에 의해 내시경적 부비동 수술을 시행받은 성인 157명의 환자 중 전향적으로 6개월 이상 추적관찰이 가능하였고 비강음향통기도 검사를 시행한 84명을 대상으로 하였다. 수술 결과는 증상접수, 비내시경점수, 방사선점수, 수술접수, 음향비강통기도 검사치를 각각 구하여 이들의 연관성을 조사하였다. 수술 전과 수술 후 3개월, 수술 전과 수술 후 6개월째의 각각 증상 점수는 통계학적으로 의의 있게 감소하였다. 음향비강통기도 검사상 전비공에서 7cm 후방을 기준으로 측정한 수술 전과 수술 후 3개월 째 비강체적은 $17.10cm^3$에서 $27.37cm^3$로 통계학적으로 의의 있게 증가하였다. 수술 전과 수술 후 3개월 째는 내시경 점수가 낮은 군과 높은 군에서 각각의 증상 점수와 호전도는 차이가 없었다. 수술 전과 수술 후 3개월 째의 증상 접수의 호전도는 모든 증상이 호전되었지만 특히 두통, 후각장애, 안면부 통증 및 중압감, 전반적 불편감이 통계학적으로 의의 있게 CT점수가 높은 군에서 낮은 군보다 높았다. 수술점수가 높은 군과 낮은 군에서 수술 전과 수술 후의 증상 점수의 호전도와 음향비강통기도 검사결과는 차이가 없었다. 이상의 결과로 보아 만성 부비동염 환자에서 내시경적 부비동 수술 후 수술 전-후의 호전도를 분석하기 위해서는 주관적인 증상의 호전여부와 객관적인 음향비강통기도 검사를 통한 비강체적의 측정이 수술 후 결과의 판정에 도움이 될 것으로 사료되고, 수술 전 내시경 점수, 수술 전 CT점수 및 수술점수에 따른 증상의 호전여부에 대한 분석 중 수술 전 CT점수가 수술 결과의 판정에 가장 도움이 될 것으로 사료된다.

• Asia pacific journal of information systems
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• 제22권4호
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• pp.7-29
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• 2012

Smartphone and its applications (i.e. apps) are increasingly penetrating consumer markets. According to a recent report from Korea Communications Commission, nearly 50% of mobile subscribers in South Korea are smartphone users that accounts for over 25 million people. In particular, the importance of smartphone has risen as a geospatially-aware device that provides various location-based services (LBS) equipped with GPS capability. The popular LBS include map and navigation, traffic and transportation updates, shopping and coupon services, and location-sensitive social network services. Overall, the emerging location-based smartphone apps (LBA) offer significant value by providing greater connectivity, personalization, and information and entertainment in a location-specific context. Conversely, the rapid growth of LBA and their benefits have been accompanied by concerns over the collection and dissemination of individual users' personal information through ongoing tracking of their location, identity, preferences, and social behaviors. The majority of LBA users tend to agree and consent to the LBA provider's terms and privacy policy on use of location data to get the immediate services. This tendency further increases the potential risks of unprotected exposure of personal information and serious invasion and breaches of individual privacy. To address the complex issues surrounding LBA particularly from the user's behavioral perspective, this study applied the privacy calculus model (PCM) to explore the factors that influence the adoption of LBA. According to PCM, consumers are engaged in a dynamic adjustment process in which privacy risks are weighted against benefits of information disclosure. Consistent with the principal notion of PCM, we investigated how individual users make a risk-benefit assessment under which personalized service and locatability act as benefit-side factors and information privacy risks act as a risk-side factor accompanying LBA adoption. In addition, we consider the moderating role of trust on the service providers in the prohibiting effects of privacy risks on user intention to adopt LBA. Further we include perceived ease of use and usefulness as additional constructs to examine whether the technology acceptance model (TAM) can be applied in the context of LBA adoption. The research model with ten (10) hypotheses was tested using data gathered from 98 respondents through a quasi-experimental survey method. During the survey, each participant was asked to navigate the website where the experimental simulation of a LBA allows the participant to purchase time-and-location sensitive discounted tickets for nearby stores. Structural equations modeling using partial least square validated the instrument and the proposed model. The results showed that six (6) out of ten (10) hypotheses were supported. On the subject of the core PCM, H2 (locatability ${\rightarrow}$ intention to use LBA) and H3 (privacy risks ${\rightarrow}$ intention to use LBA) were supported, while H1 (personalization ${\rightarrow}$ intention to use LBA) was not supported. Further, we could not any interaction effects (personalization X privacy risks, H4 & locatability X privacy risks, H5) on the intention to use LBA. In terms of privacy risks and trust, as mentioned above we found the significant negative influence from privacy risks on intention to use (H3), but positive influence from trust, which supported H6 (trust ${\rightarrow}$ intention to use LBA). The moderating effect of trust on the negative relationship between privacy risks and intention to use LBA was tested and confirmed by supporting H7 (privacy risks X trust ${\rightarrow}$ intention to use LBA). The two hypotheses regarding to the TAM, including H8 (perceived ease of use ${\rightarrow}$ perceived usefulness) and H9 (perceived ease of use ${\rightarrow}$ intention to use LBA) were supported; however, H10 (perceived effectiveness ${\rightarrow}$ intention to use LBA) was not supported. Results of this study offer the following key findings and implications. First the application of PCM was found to be a good analysis framework in the context of LBA adoption. Many of the hypotheses in the model were confirmed and the high value of $R^2$ (i.,e., 51%) indicated a good fit of the model. In particular, locatability and privacy risks are found to be the appropriate PCM-based antecedent variables. Second, the existence of moderating effect of trust on service provider suggests that the same marginal change in the level of privacy risks may differentially influence the intention to use LBA. That is, while the privacy risks increasingly become important social issues and will negatively influence the intention to use LBA, it is critical for LBA providers to build consumer trust and confidence to successfully mitigate this negative impact. Lastly, we could not find sufficient evidence that the intention to use LBA is influenced by perceived usefulness, which has been very well supported in most previous TAM research. This may suggest that more future research should examine the validity of applying TAM and further extend or modify it in the context of LBA or other similar smartphone apps.

• 한국산림과학회지
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• 제83권2호
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• pp.211-220
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• 1994

임도(林道)는 산림자원(山林資源) 조성(造成) 및 벌출작업(伐出作業) 등(等) 산림(山林)의 운영관리면(運營管理面)에서는 물론이고 일반인(一般人)의 보건휴양(保健休養)과 관광(觀光), 그리고 공도(公道) 기능면(機能面)에서도 임도설치(林道設置)가 절실히 요구(要求)된다. 따라서 본(本) 연구(硏究)는 강원도(江原道)의 국유림(國有林) 4개소(個所)와 전라북도(全羅北道)의 송유림(私有林) 4개소(個所)의 기설(旣設) 임도(林道)에 대하여 산림(山林)의 몇 가지 요인별(要因別) 설치효과(設置效果)를 분석(分析)하여 산림(山林)의 다각적(多角的)인 기능(機能) 제고(提高)를 위한 임도(林道)의 개설유형(開設類型)을 제시(提示)코자 분석(分析)한 결과(結果)는 다음과 같다. 1. 지형적(地形的) 요인(要因)과 지역사회적(地域社會的) 요인(要因)이 양호(良好)한 지역(地域)에서 투자효율(投資效率)이 높게 나타났고, 산림실태적(山林實態的) 요인(要因)과 임도구조적(林道構造的) 요인(要因)이 양호(良好)한 지역(地域)에서 투자효율(投資效率)이 낮게 나타났다. 이는 현재(現在)의 산림실태(山林實態)를 감안할 때 임업이외(林業以外)의 이용(利用)에 큰 비중(比重)을 두고 임도(林道)를 설치(設置)한 것으로 생각되어 금후(今後) 지형적(地形的) 요인(要因)이 불리한 지역(地域)에는 '산지자원화형(山地資源化型)'의 임도(林道)를, 산림실태적(山林實態的) 요인(要因)이 양호(良好)한 지역(地域)에는 '산지이용형(山地利用型)'의 임도(林道)를 설치(設置)해야 개설효과(開設效果)를 증대(增大)시킬 수 있을 것이다. 2. 효과적(效果的)인 임도(林道)를 개설(開設)하기 위해서 다목적(多目的)으로 이용(利用)할 수 있는 노선(路線)을 선정(選定)하되, 제반요인(諸般要因)에 의해서 분석(分析)한 종합평가(綜合平價) 점수(點數)가 높은 지역(地域)에 우선 설치(設置)하므로써 개설효과(開設效果)를 더욱 증대(增大)시킬 수 있을 것이다. 3. 임도(林道)의 유형구분(類型區分)은 산림실태적(山林實態的) 요인비(要因比)와 임도구조적(林道構造的) 요인비(要因比)가 60% 이상인 지역(地域)은 '산지이용형(山地利用型)', 산림실태적(山林實態的) 요인비(要因比)를 비롯한 모든 요인비(要因比)가 60% 이하인 지역(地域)은 '산지자원화형(山地資源化型)', 지형적(地形的) 요인비(要因比)와 임도구조적(林道構造的) 요인비(要因比) 및 지역사회적(地域社會的) 요인비(要因比)가 60% 이상인 지역(地域)은 '지역개선형(地域改善型)', 지형적(地形的) 요인비(要因比)를 비롯한 모든 요인비(要因比)가 60% 이상인 지역(地域)은 '보건휴양형(保健休養型)', 그리고 지역사회적(池域社會的) 요인비(要因比)와 산림실태적(山林實態的) 요인비(要因比)가 60% 이상인 지역(地域)은 '복합개발형(複合開發型)' 등(等)으로 구분(區分)하여 특징(特徵)있는 임도(林道)를 개발(開發)하는 것이 합리적(合理的)일 것이다.

• 한국산학기술학회논문지
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• 제17권8호
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• pp.273-279
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• 2016

본 연구는 대학생의 성역할 고정관념 및 성폭력 피해경험과의 관계에서 성폭력 허용도의 매개효과를 검증하고자 하였다. 연구대상은 제주에 위치한 대학교에 재학중인 남녀 대학생 600명 중 408명((남, 127명, 여, 281명)이었으며, 성역할 고정관념, 성폭력 허용도, 성폭력 피해경험 척도를 사용하여 설문을 실시하였다. 본 연구의 결과를 요약하면 다음과 같다. 첫째 상관분석 결과 성역할 고정관념과 성폭력 피해경험은 성폭력 허용도와 유의한 정적 상관을 보였다. 둘째 성역할 고정관념과 성폭력 피해경험의 관계에서 성폭력 허용도의 매개효과가 어떠한지 알아본 결과, 성폭력 허용도가 성역할 고정관념과 성폭력 피해경험의 관계를 완전 매개하는 것으로 나타났다. 데이트 성폭력 피해경험에 가장 큰 영향을 준 요인은 성폭력 허용도였다. 구조방정식 경로계수와 매개효과를 살펴보면, 본연구의 표준화 경로계수는 성역할 고정관념에서 성폭력 허용도(29, p=.000)로, 성폭력 허용도에서 성폭력 피해경험(42, p=.000)으로 가는 영향력을 보여줬다. 매개의 효과성에서 간접효과는 성역할 고정관념과 성폭력 피해경험(11, p=.01)에서 나타났고, 직접효과는 성역할 고정관념에서 성폭력 허용도(28, p=.000)로, 성폭력 허용도에서 성폭력 피해경험(40, p=.000)으로 나타났다. 결과적으로 성역할 고정관념이 성폭력 피해경험에 직접적으로 영향을 미치기보다는 성폭력 허용도를 통해 간접적으로 영향을 미친다는 것을 의미한다. 따라서 본 연구의 시사점은 성역할 고정관념과 성폭력 허용도를 낮추어 성폭력 피해를 감소하게 해야 된다는 것이다. 따라서 양성평등적 인식이 높을수록 성폭력 허용도가 낮아져 성폭력 피해가 예방될 것이다.

• 유통과학연구
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• 제10권7호
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• pp.33-41
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• 2012

The purpose of this study is to analyse the state of the energy industry and to determine the efficiency of its functioning on the basis of energy conservation principle and application of innovative technologies aimed at improving the ecological modernisation of agricultural sectors of Kazakhstan. The research methodology is based on an integrated approach of financial and economic evaluation of the effectiveness of the investment project, based on calculation of elasticity, total costs and profitability, as well as on comparative, graphical and system analysis. The current stage is characterised by widely spread restructuring processes of electric power industry in many countries through introduction of new technical installations of energy facilities and increased government regulation in order to enhance the competitive advantage of electricity market. Electric power industry features a considerable value of creating areas. For example, by providing scientific and technical progress, it crucially affects not only the development but also the territorial organisation of productive forces, first of all the industry. In modern life, more than 90% of electricity and heat is obtained by Kazakhstan's economy by consuming non-renewable energy resources: different types of coal, oil shale, oil, natural gas and peat. Therefore, it is significant to ensure energy security, as the country faces a rapid fall back to mono-gas structure of fuel and energy balance. However, energy resources in Kazakhstan are spread very unevenly. Its main supplies are concentrated in northern and central parts of the republic, and the majority of consumers of electrical power live in the southern and western areas of the country. However, energy plays an important role in the economy of industrial production and to a large extent determines the level of competitive advantage, which is a promising condition for implementation of energy-saving and environmentally friendly technologies. In these circumstances, issues of modernisation and reforms of this sector in Kazakhstan gain more and more importance, which can be seen in the example of economically sustainable solutions of a large local monopoly company, significant savings in capital investment and efficiency of implementation of an investment project. A major disadvantage of development of electricity distribution companies is the prevalence of very high moral and physical amortisation of equipment, reaching almost 70-80%, which significantly increases the operating costs. For example, while an investment of 12 billion tenge was planned in 2009 in this branch, in 2012 it is planned to invest more than 17 billion. Obviously, despite the absolute increase, the rate of investment is still quite low, as the total demand in this area is at least more than 250 billion tenge. In addition, industrial infrastructure, including the objects of Kazakhstan electric power industry, have a tangible adverse impact on the environment. Thus, since there is a large number of various power projects that are sources of electromagnetic radiation, the environment is deteriorated. Hence, there is a need to optimise the efficiency of the organisation and management of production activities of energy companies, to create and implement new technologies, to ensure safe production and provide solutions to various environmental aspects. These are key strategic factors to ensure success of the modern energy sector of Kazakhstan. The contribution of authors in developing the scope of this subject is explained by the fact that there was not enough research in the energy sector, especially in the view of ecological modernisation. This work differs from similar works in Kazakhstan in the way that the proposed method of investment project calculation takes into account the time factor, which compares the current and future value of profit from the implementation of innovative equipment that helps to bring it to actual practise. The feasibility of writing this article lies in the need of forming a public policy in the industrial sector, including optimising the structure of energy disbursing rate, which complies with the terms of future modernised development of the domestic energy sector.

• 핵의학기술
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• 제15권1호
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• pp.121-125
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• 2011

배경 : B형간염표면항원(HBsAg)은 B형간염의 진단에 있어 가장 중요한 혈청학적 지표 중 하나이다. HBsAg 검사에 대한임상검사실의 수요에 맞추어 자동화 장비 및 검사법이 계속 개발되어 왔다. 본 연구는 국내에 보급된 RIAKEY, BNIBT, RIAKEY Ultra Sensitive HBsAg, ROCHE 키트의 민감도 및 변이형 검출능과 CLIA법의 CENTAUR 장비와 RIAKEY Ultra Sensitive HBsAg의 상관계수를 알아보고자 하였다. 방법 : WHO $1^{st}$ International Standard 1985(80/549), WHO $2^{nd}$ International Standard 2003 (00/588) 표준물질 2개를 이용하여 농도별 0.08, 0.04, 0.02, 0.01, 0.005 IU/ml 까지 계단희석을 시행하였으며, Subtype ad 9종, Subtype ay 변이시료 1종을 이용하여 RIAKEY, BNIBT, RIAKEY Ultra Sensitive HBsAg, ROCHE 키트를 이용하여 시행하였다. 그리고, 아형 검출에 사용된 변이시료 10종에 대한 IRMA법의 RIAKEY Ultra Sensitive HBsAg와 CLIA법의 CENTAUR 장비를 이용한 상관계수를 비교하였다. 결과 : 표준물질의 농도별 측정 시 WHO 0.01 PANEL 에서 Index 1.0 이상의 결과 값을 얻었으며, 그 결과 민감도는 0.01 IU/ml로 측정되었다. RIAKEY Ultra sensitve HBsAg 키트가 민감도측면에서 우수함을 알 수 있었다. RIAKEY Ultra sensitve HBsAg IRMA 키트에서는 adw2 9종과 ayw1 1종의 변이형 형태에 따라 모두 Index 1.0 이상으로 혈청중의 HBsAg을 100% 측정할수 있었다. RIAKEY Ultra sensitive HBsAg와 CLIA의 결과가 Y=1.0075 X + 1.2434, $R^2$=0.9982으로 우수한 상관성을 보였다. 결론 : 4세대인 IRMA법의 Ultra Sensitive HBsAg 키트로 혈청중의 HBsAg과 여러 가지 아형을 신속하고 정확히 측정하여 질병을 진단 할 수 있을 것으로 여겨진다.

• Radiation Oncology Journal
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• 제11권2호
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• pp.259-265
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• 1993

1985년 1월부터 1992년 7월까지 경북대학교병원 치료방사선과에서 화학요법후 방사선치료를 받은 국소진행된 비인강암 환자 52명을 대상으로 화학요법의 효과를 판정하기 위하여 후향적 조사를 실시하였다. 남녀성비는 3.3:1이었고 중앙연령은 41세였다. 병리조직학소견은 40예에서 편평세포암이었고, 나머지 12예에서는 미분화세포암이었다. AJC병기에 따른 분류는 III기가 7예였고, 나머지 45예는 IV기였다. 모든환자는 2회의 화학요법후 방사선치료를 받았으며 사용된 화학요법 제재는 CVB (cyclo-phosphamide+vincristine+ bleomycin)이나 CF (cicplantin+5-FU)였다. 방사선조사량은 원발병소에 6000~7500 cGy, 임파절은 병의 정도에 따라 최대 7000 cGy까지 조사하였다. 국소관해율, 생존율 및 무병생존율을 분석하였다. 화학요법에 대한 완전관해율은 $15\%,$ 부분관해율은 $46\%$였으며 방사선치료후 완전관해율은 $87\%$였다. 중앙추적기간은 51개월 이었으며 3년 생존율 및 무병생존율은 각각 $54\%$와 $49\%$였다. 중앙재발기간은 15개월이었으며 완전관해 후 재발의 양상은 국소재발단독이 12예, 원격전이단독이 11예, 국소재발 및 원격 전이가 2예였다. Cox's multivariate regression model에 따르면 임파절전이 유무가 무병생존율에 영향을 미치는 가장 중요한 예후인자이었다(p=0.001). 다른 보고에서의 방사선 단독치료의 결과와 비교하여 볼 때 화학요법에 대한 종양의 반응율은 높으나 화학요법 및 방사선치료가 국소관해율 및 생존율의 향상으로는 연결되지는 않았다. 결론적으로 진행된 비인강암에서의 화학요법은 좀더많은 비교대조군 연구(controlled clinical trial)를 통해서만 역 할을 이야기할 수 있을 것으로 사료된다.

• 한방재활의학과학회지
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• 제19권2호
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• pp.125-156
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• 2009

Objectives : To research the trend of studies related to rheumatoid arthritis and to indicate the hereafter direction for its study in oriental medicine and its treatment. Methods : I reviewed 75 domestic oriental medical journals, and 50 medical journals about rheumatoid arthritis published after 2004, and comparative analysis was made. And these theses were classified by college, year, field of study, subject. Results : The following are the results of this study. 1. Classified by oriental medical college, Dae-jeon college published the most theses, followed by Dong-guk, Kyung-hee, Se-myung and Dong-shin college. Han-yang college published the most theses among college of medicine. 2. Classified by type of thesis, experimental theses(70 pieces, 94%) showed higher rate than that of clinical theses(4 pieces, 5%) in oriental medical studies. However, in medical studies, clinical theses(34 pieces, 68%) showed higher rate than that of experimental theses(15 pieces, 30%). 3. Analyzed by subject, the most dealt subject in oriental medicine was herb medication, followed by herbal acupuncture, single herb, electroacupuncture, sasang & gene, acupuncture & moxibustion, complex accordingly. The most dealt subject in medical clinical journals was standards of diagnosis & prognosis, followed by medication, gene analysis, pathogenesis, clinical pattern, operative treatment and complication accordingly. 4. In theses related to herb medication, most of the subject was to evaluate anti-inflammatory and immunoregulatory effects of herb medication with geopungseup, jibitong, hwalhyeolgeoer function. The tendency of experimental methods was focusing on understanding anti-inflammatory and immunoregulatory mechanisms through molecular biologic methods by analyzing cytokine and gene. 5. Most of theses related to herbal acupuncture were experimental studies verifying ant-inflammatory and immnoregulatory effects through methods observing change of cytokine and immunoregulatory factors. Regarding remedies for herbal acupuncture, Ulmus davidiana Planch was most preferred, followed by bee venom. 6. In theses related to single herb, Boik-yak was most prefered, followed by Geopungseup-yak and Hwalhyeolgeoer-yak. Regarding methods of research, there were tendency of shifting from methods verifying travail, anti-inflammatory and anti-pyretic effects through a test of behavior, morphometry, serology and temperature measurement of the rectum and the skin into verifying anti-inflammatory and immunoregulatory effects through observing inflammatory cytokine in the joint and cells of spleen. 7. In theses related to electroacupuncture, ST36 and adjuvant were most preferred as acupoints and induced factor. The tendency of experimental methods was turning from verifying mechanism of travail effect to analyzing inflammation and pain inducing factors. 8. Diverse medical clinical studies were published. Subjects such as diagnosis and prognosis, medication, gene analysis, clinical pattern, operational treatment, complication and pathogenesis were published. Especially, studies about standards of early diagnosis, and research on possible parallel medications with methotrexate were actively inquired. 9. Most of theses related to medical experimental studies was about mediators and receptors related to inflammatory induction and osteoclasia mechanism. Also, it was presented blockage of them can be effective on rheumatoid arthritis. Conclusions : The oriental medicine studies have merit in its diversity of treatment, but it clinical studies is lacking compared to experimental studies. Also, more diversity of subjects is necessary. Therefore, complementary measures are needed. Hereafter, oriental medicine research about rheumatoid arthritis needs more clinical research verifying the effectiveness and safety in clinical field. Also, we require oriental medical standard of diagnosis and researches on pathological generation which would make early checkup and prognosis possible.

• 한국균학회소식:학술대회논문집
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• 한국균학회 2014년도 추계학술대회 및 정기총회
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• pp.25-25
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• 2014

Three species of Fusarium, F. fujikuroi, F. verticillioides and F. proliferatum, are known to be associated with bakanae disease of rice [1, 2]. F. fujikuroi infects rice flowers and survive in endosperm and embryo of the seeds. Infected seed is an important source of primary inoculum of pathogens [3]. Seeds of rice (Oryza sativa cv. Boramchan) collected from bakanae-infected field were found to be 96% infected with Fusarium sp., 52% with F. fujikuroi, 42% with F. verticillioides, and 12% with F. proliferatum as determined by incubation method and species-specific PCR assays. F. fujikuroi was detected at lemma/palea, endosperm and embryo whereas F. verticillioides and F. proliferatum were recovered only from lemma/palea by means of component plating test. Seed disinfection methods have been developed to control bakanae disease and prochloraz has been most widely used for rice seeds. Two chemicals formulated with prochloraz (PC 1) and prochloraz + hexaconazole (PC 2) that inhibit biosynthesis of ergosterol strongly reduced the incidence of Fusarium spp. on selective media to 4.7% and 2.0%, respectively. Disease symptoms of rice seedlings in nursery soil were alleviated by chemical treatment; seedlings with elongated leaves or wide angle between leaf and stem were strikingly reduced from 15.6 to 3.2% (PC 1) and 0 (PC 2), stem rots were reduced from 56.9 to 26.2% (PC 1) and 32.1% (PC 2), and normal seedling increased from 0.4 to 13.3% (PC 2). Prochloraz has some disadvantages and risks such as the occurrence of tolerant pathogens [4] and effects on the sterol synthesis in animals and humans [5]. For these reasons, it is necessary to develop new disinfection method that do not induce fungal tolerance and are safe to humans and animals. Chlorine dioxide ($ClO_2$), that is less toxic, produces no harmful byproducts, and has high oxidizing power, has been reported to be effective at disinfection of several phytopathogenic fungi including Colletotrichum spp. and Alternaria spp. [6]. Gaseous $ClO_2$ applied to rice seeds at a concentration of 20 ppm strongly suppressed mycelial growth of Fusarium fujikuroi, F. verticillioides and F. proliferatum. The incidence of Fusarium spp. in dry seed with 8.7% seed moisture content (SMC) tended to decrease as the concentration of $ClO_2$ increased from 20 to 40 ppm. Applying 40 ppm $ClO_2$ at 90% relative humidity, incidence was reduced to 5.3% and resulted in significant reduction of disease symptoms on MS media. In nursery soil, stem rot was reduced from 56.9 to 15.4% and the number of normal seedlings increased from 0.4 to 25.5%. With water-soaked seeds (33.1% SMC) holding moisture in the endosperm and embryo, the effectiveness of disinfection using $ClO_2$ increased, even when treated with only 20 ppm for four hours. This suggests that moisture was a key element for action of $ClO_2$. Removal of the palea and lemma from seeds significantly decreased the incidence of Fusarium spp. to 3.0%. Seed germination appeared to decrease slightly by water-soaking at $30^{\circ}C$ because of increased SMC and by physical damage of embryos from hulling. These results indicate that the use of gaseous $ClO_2$ was effective as a means to disinfect rice seeds infected with Fusarium spp. and that moisture around the pathogens in the seed was an important factor for the action of $ClO_2$. Further investigations should be conducted to ascertain the best conditions for complete disinfection of Fusarium spp. that infect deep site of rice seeds.

• 기술혁신학회지
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• 제21권2호
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• pp.636-662
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• 2018

최근 문재인 정부는 중소벤처가 주도하는 창업과 혁신성장 전략의 일환으로 중소기업청을 중소벤처기업부로 확대 신설하였다. 경기둔화 상황에서는 작지만 우수한 내부역량을 보유한 벤처기업이 성장에 유리한 것으로 나타나고 있어 기술개발 자금 부족에 대한 정부 지원자금의 중요성은 커지고 있다. 기존 연구에서는 기업 스스로 노력으로 경쟁력 강화가 가능한 내부역량 요인과 산업환경에서 중요한 요인인 성장단계가 경영성과에 미치는 영향구조에 집중한다. 그러나 연구모델 관점에서 벤처기업 정부 지원자금의 활용이 내부역량 및 기업 성장단계에서 어떠한 경영성과를 미치는지를 살펴보는 선행연구는 부족한 현실이다. 따라서 본 연구에서는 벤처기업의 내부역량과 기업 성장단계가 경영성과에 직접적인 효과성이 있는지 여부에서 나아가, 이들 영향구조 하에서 정부 지원자금 활용과 연계한 조절효과를 분석하였다. 연구의 분석 결과는 다음과 같다. 첫째, 벤처기업의 내부역량 요인 중 연구개발(R&D) 인력 비율이 타 벤처기업보다 상대적으로 낮은 벤처기업, 자사브랜드 미보유 벤처기업, 그리고 종업원이 증가한 벤처기업에서 정부 지원자금 활용에 대한 조절효과가 통계적으로 유의미한 양(+)의 관계를 보였다. 둘째, 벤처기업의 성장단계 중 고도성장 단계에서 정부 지원자금 활용에 대한 조절효과가 통계적으로 유의미한 양(+)의 관계를 보이는 것으로 나타났다. 본 연구는 벤처기업 내부역량 요인과 성장단계에 대한 정부 지원자금 정책의 조절효과를 확인한 바, 향후 벤처기업의 정부 지원자금에 대한 정책방향 수립 시 경영성과 및 산업경쟁력 제고 관점에서 연구결과 활용에 의의가 있다. 또한 R&D 인력 지원을 포함한 더 큰 범위에서의 일자리 창출과 연계된 인력정책의 필요성과 고도성장 단계에 있는 벤처기업의 정부 지원자금에 대한 효과성 연구가 벤처정책의 수립하는데 의미가 있을 것으로 기대된다.