• 제목/요약/키워드: empirical test

검색결과 2,742건 처리시간 0.028초

겨울기온 상승에 따른 복숭아 나무 '장호원황도' 품종의 결과지에 대한 동상해위험 공간분석: III. 고해상도 기후시나리오에 근거한 동해위험의 미래분포 (Geospatial Assessment of Frost and Freeze Risk in 'Changhowon Hwangdo' Peach (Prunus persica) Trees as Affected by the Projected Winter Warming in South Korea: III. Identifying Freeze Risk Zones in the Future Using High-Definition Climate Scenarios)

  • 정유란;김진희;김수옥;서희철;윤진일
    • 한국농림기상학회지
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    • 제11권4호
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    • pp.221-232
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    • 2009
  • 본 연구는 겨울철 휴면심도와 동해유발온도를 기반으로 작성된 복숭아 나무 '장호원황도' 품종의 휴면지에 대한 동해위험지수 계산식을 고해상도 전자기후도와 결합하여 현재평년(1971-2000년)의 기후조건에서 동해위험의 지역적 분포를 파악하였다. 이를 기준으로 두고 기후변화 시나리오에 근거한 미래 3개 평년(2011-2040년, 2041-2070년, 2071-2100년)의 기온자료에 동일한 방법을 적용하여 얻은 동해위험지수와 비교함으로써 기후변화에 따른 이들 위험지역의 이동을 경관규모에서 추적하였다. 현재평년(1971-2000년) 기후조건에서는 전 국토의 4%가 안전지대, 88%가 동해 위험 경계지대, 8%가 위험지대로 탐색되었다. 시나리오 기후조건에서는 가까운 미래(2011-2040년)와 먼 미래(2041-2100년)에 모두 경계지대가 줄어드는 반면 안전지대와 위험지대가 다같이 증가하였다. 이 방법은 경기도 이천, 경북 청도 등 복숭아 주산지 내의 위험지대를 경관규모에서 탐색하는 데도 이용될 수 있음이 확인되었으므로 앞으로 농업분야 기후변화 영향평가 및 취약성 분석에 기여할 것으로 기대된다.

국내 양돈장의 차단방역 수준 평가 및 돼지써코바이러스 2형 감염의 위험요인에 관한 연구 (Assessing Biosecurity Practices on Commercial Pig Farms across Korea and Risk Factors for Porcine Circovirus Type 2 Infection)

  • 최성현;박선일
    • 한국임상수의학회지
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    • 제32권4호
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    • pp.324-329
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    • 2015
  • The primary aim of this study was to investigate biosecurity practices in pig farms and to determine the major risk factors associated with PCV2 infection for a sampled swine population in Korea. To this end, we analyzed data from a cross-sectional study of 296 farrow-to-finish farms, which was conducted between March and September 2014 to explore the prevalence of swine disease at farm level. Face-to-face interviews by on-site visit of trained veterinarians were conducted with the farm owners or managers using a standardized questionnaires with information about basic demographical data and management practices. Farms were classified as negative or positive through the use of infection profiles that combined data on serological testing including PCR antigen test result, antibody titer and sero-conversion pattern at each age category taking into account vaccination status. Data were analyzed using multivariate ordinal logistic regression. Results from this study indicated that biosecurity level of the farms was considered not good given low compliance of the biosecurity programs and facilities in the farm: off-site removal of dead stocks (7%), off-site location of storage facility for incoming feeds (12.6%), off-site pick-up location for finishers (19.3%), restrictions on feed supplier vehicles for farm entrance (19.6%), restriction of finisher trucks entering the farm (22.4%), and restriction on manure disposal trucks entering the farm (26.4%). In the final model (n = 255), allowance of finisher truck driver to the pig unit had increased risk of infection (OR = 2.4, 95% CI 1.22-4.67) whereas farms with a sign forbidding the entrance had decreased risk of infection (OR = 0.19, 95% CI 0.10-0.58). Further comprehensive research with larger sample size is required to better understand the multifactorial characteristic that some predisposing risk factors that were not available in this study. To the best knowledge of the authors, this was the first study to use empirical data to report risk factors associated with PCV2 infection in the Korean pig farms. Results from the current study could be used to decide optimal biosecurity measures to reduce the impact of PCV2 infection to farmers and policy makers.

지식 상호보완성과 신뢰가 IT 아웃소싱 효과에 미치는 영향에 관한 연구 (The Effects of Knowledge Complementarities and Trust on IT Outsourcing Effectiveness)

  • 신호경;김경규
    • Asia pacific journal of information systems
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    • 제17권3호
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    • pp.55-78
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    • 2007
  • Increasingly the information technology (IT) outsourcing phenomenon has been a subject of much academic research. Scholars have argued that knowledge complementarities playa crucial role in forming successful IT outsourcing relationships. However, notwithstanding the fast growth of IT outsourcing, prior studies on IT outsourcing have not included knowledge complementarities in their research design as a determining factor for IT outsourcing effectiveness. Further, the understanding of knowledge complementarities itself remains ambiguous. In this study, the concept of knowledge complementarities is explored in the IT outsourcing context at the firm level. Specifically, it addresses the following questions: what is knowledge complementarities? How does it affect IT outsourcing effectiveness? Is the relationship between knowledge complementarities and IT outsourcing effectiveness influenced by organizational trust between the client and the vendor? Grounded in the relevant theories to knowledge management and IT outsourcing, we develop a research model in which both the main effects of knowledge complementarities and organizational trust and the moderating effect of organizational trust on the relationships between knowledge complementarities and IT outsourcing effectiveness are tested. Within this research model, we develop a second order construct of knowledge complementarities, consisting of complementary business knowledge and complementary IT knowledge as the first order constructs. We have used data from a field study of 103 firms in Korea to test the proposed model. Controlling the effects of conflict resolution efforts, our empirical analysis found significant main effects of knowledge complementarities and organizational trust on IT outsourcing effectiveness. The results suggest that knowledge complementarities between the client and vendor positively contribute to IT outsourcing effectiveness. Specifically, the client needs to have enough IT knowledge to assess the quality of IT outsourcing services provided by the vendor. Meanwhile, the vendor should understand the client's business well enough to provide IT services, Contrary to our expectations, the moderating effect of trust on the relationship between knowledge complementarities and IT outsourcing effectiveness was not supported in this study. The results also show that organizational trust between client and vendor significantly influences IT outsourcing effectiveness. As for contributions of this study, we have not only clarified the concept of knowledge complementarities, but also developed an instrument to measure the concept and empirically validated it. Further, we have tested the idea that knowledge complementarities and trust directly influence IT outsourcing effectiveness and trust moderates the relationship between knowledge complementarities and IT outsourcing effectiveness. Out results prescribe the knowledge complementarities of client and vendor as a useful path to IT outsourcing effectiveness. These findings have important theoretical and practical implications, which are discussed in the paper.

온라인 정보탐색의 효과변인 분석 (An Analysis on the Factors Affectingy Online Search Effect)

  • 김선호
    • 한국문헌정보학회지
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    • 제22권
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    • pp.361-396
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    • 1992
  • The purpose of this study is to verify the correlations between the amount of the online searcher's search experience and their search effect. In order to achieve this purpose, the 28 online searchers working at the chosen libraries and information centers have participated in the study as subjects. The subjects have been classified into the two types of cognitive style by Group Embedded Figure Test. As the result of the GEFT, two groups have been identified: the 15 Field Independance ( FI ) searchers and the 13 Field Dependance ( FD ) searchers. The subject's search experience consists of the 3 elements: disciplinary, training, and working experience. In order to get the data of these empirical elements, a questionnaire have been sent to the 28 subjects. An online searching request form prepared by a practical user was sent to all subjects, who conducted searches of the oversea databases through Dialog to retrieve what was requested. The resultant outcomes were collected and sent back to the user to evaluate relevance and pertinence of the search effect by the individual. In this study, the search effect has been divide into relevance and pertinence. The relevance has been then subdivided into the 3 elements : the number of the relevant documents, recall ratio, and the cost per a relevant document. The relevance has been subdivided into the 3 elements: the number of the pertinent documents, utility ratio, and the cost per a pertinent document. The correlations between the 3 elements of the subject's experience and the 6 elements of the search effect has been analysed in the FI and in the FD searchers separately. At the standard of the 0.01 significance level, findings and conclusions made in the study are summarised as follows : 1. There are strong correlations between the amount of training and the recall ratio, the number of the pertinent documents, and the utility ratio on the part of FI searchers. 2. There are strong correlations between the amount of working experience and the number of the relevant documents, the recall ratio on the part of FD searchers. However, there is also a significant converse correlation between the amount of working experience and the search cost per a pertinent document on the part of FD searchers. 3. The amount of working experience has stronger correlations with the number of the pertinent documents and the utility ratio on the part of FD searchers than the amount of training. 4. There is a strong correlation between the amount of training and the pertinence on both part of FI and FD searchers.

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혈액배양에서 분리된 Extended Spectrum β-Lactamase 생성균의 역학적 특성 조사 (Evaluation of Epidemic Characteristics of Extended Spectrum β-Lactamase Producing Bacteria Isolated from Blood Cultures)

  • 서충원;김상하;황석연;김영권
    • 한국산학기술학회논문지
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    • 제10권9호
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    • pp.2516-2522
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    • 2009
  • 본 연구는 혈액에서 분리되는 미생물의 균종과 항균제 감수성 검사 결과 양상은 환자의 일반적 특성에 따라 다르므로 혈액배양 결과를 분석한 자료는 감염증 환자의 경험적 치료를 위한 중요한 근거가 되고, 특히 ESBL을 생성하는 균주의 경우 항균제의 사용과도 밀접한 관련이 있어 이 연구를 하게 되었다. 혈액배양 결과와 항균제 내성 결과를 분석한 결과는 다음과 같다. 1. 39.305건의 혈액배양이 의뢰되어 양성 환자 수는 2,216명(20.0%)이었고, 이중에서 ESBL양성 환자 수는 40명 이었으며, 혈액배양 양성은 4,798건(12.2%)이었으며 ESBL양성 균주는 86건(중복 배양 균주 포함)이었다. 2. ESBL을 생성하는 세균 중에서 분리된 균종은 E. coli, K. pneumoniae, K. oxitoca의 순 이었다. 3. 성별로는 여자가 다소 많았고, 연령별로는 50세 이상의 군에서 E. coli, 1세 미만의 군에서는 K. pneumoniae, K. oxitoca 의 분리가 많았고, 지역별로는 충청남도 13명(32.5%)로 가장 많았다. 4. 3년간 일개대학병원의 혈액배양에서 ESBL양성인 균종 중 가장 흔히 분리되는 것은 E. coli이고, K. pneumoniae, K. oxitoca 등이 다음으로 분리 되었고, 50세 이상의 환자에서 E. coli의 분리 비율이 높았다.

고객공격행동, 직무스트레스, 스트레스 대처가 보험설계사의 직무만족도에 미치는 영향 (Effects of Dysfunctional Customer Behavior, Job Stress and Stress Copying on Job Satisfaction in Insurance Solicitors)

  • 이상훈;박슬기
    • 한국산학기술학회논문지
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    • 제17권9호
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    • pp.578-588
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    • 2016
  • 직무만족도는 인간의 보편적인 목표인 행복에 영향을 미치는 요인이지만 이에 대해 만족하지 못하면 이직을 선택하거나 삶의 질을 떨어뜨리는 강력한 변수가 된다. 보험설계사는 이직률이 높은 것으로 나타나 직무에 만족하지 못함에서 기인되는 것으로 추정할 수 있는데, 이는 보험설계사가 고객을 직접 대면하는 직무특성으로 이에 대한 스트레스가 직무만족에 영향을 미칠 것으로 사료된다. 하지만 보험설계사를 대상으로 직무만족과 고객과의 관련성에 대한 연구는 미비한 실정으로, 본 연구는 보험설계사를 대상으로 고객공격행동, 직무스트레스, 스트레스 대처와 직무만족도에 미치는 영향을 알아보고자 하였다. 본 연구의 자료 수집은 2016년 5월 6일부터 5월 27일까지 구조화된 자가 설문지를 이용하여 서울, 경기, 경상권에 위치한 3개 보험회사의 보험설계사 245명을 대상으로 시행되었다. 연구결과 직무만족도는 고객공격행동, 직무스트레스, 스트레스 대처와 유의한 상관관계를 보였다. 보험설계사의 직무만족도에 영향을 미치는 요인은 직무스트레스, 스트레스 대처, 수입수준으로 나타났으며, 이는 직무만족도를 총 34%를 설명하는 것으로 나타났다. 따라서 본 연구는 이와 같은 연구결과를 기반으로 보험설계사의 직무만족의 효율적인 관리를 위한 기초자료를 제공하고자 한다.

사회적 책임활동이 브랜드자산과 소비자태도에 미치는 영향 연구 (The Effect of Corporate Social Responsibility Activities on Brand Equity and Consumer Attitude)

  • 박남구;최호규
    • 유통과학연구
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    • 제12권8호
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    • pp.17-29
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    • 2014
  • Purpose - The use of corporate social activities to implement the concept of corporate social responsibility enhances brand equity and attitude, and strengthens economic competitiveness. In areas such as mobile communications, companies take the responsibility of protecting customers and enhance the quality of the mobile communication service, helping to make an effort to obey the regulations of the public trade order and fair trade agreement, enabling a healthy society through communication with elderly living alone or youths without parents, and enhancing marketing strategies. Research design, data, and methodology - To test the hypothesis, a survey was conducted. The surveyed population includes people who use the big three mobile communication services. The survey was conducted from October 4th to October 14th, 2013. A total of 500 survey questionnaires were circulated and 483 were collected; out of these, 32 were excluded due to missing or incomprehensible information. The data was analyzed with SPSS 18.0 via frequency analysis, trust analysis, search factor analysis, relationship analysis, confirmation factor analysis using AMOS 18.0, and structural equation model analysis. Results - Research on corporate social responsibility has been frequently conducted recently. Companies are perceived as social constituents satisfying the social desires of people in addition to customer needs. Further, companies are returning profits to society to satisfy community needs, because there is greater emphasis on the social responsibilities of companies. Companies' social responsibilities should include marketing strategies and the identification of customer needs. This study shows that social service activities influence brand value, which influences customer attitudes; therefore, social service activities indirectly influence customer attitudes. In order to increase customers' purchasing intention, it is essential to improve brand image via social services and provide a distinctive quality of service. Conclusions - This research has used the purposive selection method in the empirical analysis to identify the effect of social services on brand value and customer attitude. Therefore, this study revealed that businesses, whose ultimate objective is to improve customers' purchasing intention, should promote their brand equity through corporate social responsibility activities and offer a distinct service quality. Limitations in the progress of research were found and future indications to overcome these limitations are suggested as follows. First, survey responders had a limited understanding of social responsibilities; therefore, this concept needs to be explained to people first. Second, the research was done on people who live in Daejeon; thus, it is not representative of the entire country. The research has to be repeated with people in other cities. Third, there is a limitation in the study because the purposive selection method was used on Daejeon customers. In the future, a more precise selection of the population is needed. Fourth, Daejeon has unique geographical and size characteristics. Thus, customers in Seoul and other areas may display different characteristics and research on them may reveal different findings. Therefore, again, this study has to be repeated in other areas.

제품의 구매의도에 대한 자아 메시지의 유형과 환경적 프라이드의 유형의 효과 (Effects of Self Message Type and Incidental Pride Type on Product Purchase Intention)

  • 최낙환
    • 산경연구논집
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    • 제10권10호
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    • pp.53-65
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    • 2019
  • Purpose - Current study aimed at investigating the effects of the choice easiness as a thought triggered at the time of making decision and the goal achievement emotion as a prediction of how consumers feel in the state of achieving consumption goal on brand purchase intention. And It also explored moderation role of incidental pride type such as ambient hubris pride and ambient authentic pride felt before the event in the effects of message type such as self-verifying message and self-enhancing message on the choice easiness and the goal achievement emotion. Research design, data, and methodology - Message type was divided into self-verifying message and self-enhancing message. Incidental pride type was divided into hubris and authentic pride. Smart mobile phone was selected for empirical study. And the experiment was performed with 2(pride type: hubristic versus authentic) × 2(message type: self-verifying message versus self-enhancing message) between-subjects design. Questionnaires from 215 undergraduate students were used to test hypotheses by Macro process model 7. The hypotheses were tested at each of self-verifying message group and self-enhancing message group. Results - First, both choice easiness and goal achievement emotion positively influenced on the purchase intention at both self-verifying message group and self-enhancing message group. Second, at self-verifying message group, the positive effects of self verification on both choice easiness and goal achievement emotion were higher to the customers under incidental hubris pride than to those under incidental authentic pride customers. Third, at self-enhancing message group, the positive effects of self enhancement on goal achievement emotion were higher to the customers under incidental authentic pride than to those under incidental hubris pride. However, at self-enhancing message group, the positive effects of self enhancement on choice easiness (goal achievement emotion) were not higher (higher) to the customers under incidental authentic pride than to those under incidental hubris pride. Conclusions - Focusing on the results of this study, to promote their brand purchase intention, brand managers should use self-enhancing message to induce goal achievement emotion from incidental authentic pride customers. And the brand managers should develop and use self-verifying message to induce choice easiness as well as goal achievement emotion from hubris pride customers, which in turn, promote their brand purchase intention.

가구소득, 주양육자 우울, 청소년 공격성 간의 종단적 상호교류관계 검증 : 자기회귀교차지연모델을 이용하여 (An Empirical Test of the Interactionist Model on the Relationship Between Household Income, Main Caregiver Depression, and Youth Aggression)

  • 김동하;엄명용
    • 사회복지연구
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    • 제47권1호
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    • pp.151-178
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    • 2016
  • 본 연구에서는 가구의 경제적 환경과 주양육자 및 자녀의 발달 관계를 사회원인론적 관점이나 사회선택론적 관점에 입각해서 단편적으로 보는 것에 문제를 제기하고, 가구소득, 주양육자 우울, 청소년 공격성이 시간의 흐름에 따라 상호 영향을 주고받을 것으로 가정하는 상호교류모델을 경험적으로 검증하고자 하였다. 이를 위해 한국복지패널의 2006년, 2009년, 2012년도의 다중정보체계 자료를 활용하여 자기회귀교차지연분석을 실시하였다. 분석대상은 주양육자와 자녀로 구성된 561가구이며, 분석기간은 아동기 후기부터 청소년기 전체를 포괄한다. 분석결과, 가구소득, 주양육자 우울, 청소년공격성은 모두 강한 자기회귀효과를 가지는 것으로 나타났으며, 가구소득과 주양육자 우울 간의 상호교류관계가 확인되었다. 아울러 본 연구에서는 가구소득과 청소년 공격성 간에 종단적 관계에서 주양육자의 우울이 매개역할을 하지 않는 것으로 나타났다. 이러한 연구결과들을 바탕으로 경제적 환경과 관련된 주양육자 및 청소년 문제에 접근하는 데 필요한 정책적 실천적 함의를 제시하였다.

B2B 시장에서 구매기업의 CSR 활동이 공급업체의 신제품 창의성에 미치는 영향: 신뢰와 정보교환 품질의 역할을 중심으로 (The Effects of Buyer's CSR on Supplier's New Product Creativity in B2B Market: The Role of Trust and Quality of Information Exchange)

  • 이한근;정남식;강성호
    • 한국산업정보학회논문지
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    • 제26권5호
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    • pp.55-68
    • /
    • 2021
  • B2B 맥락 하에서 구매기업의 CSR 활동의 효과에 대한 연구는 공급업체와의 장기적 관계자산구축이라는 전통적 연구주제에서 벗어나지 못해왔다. 이에 본 연구에서는 기존 연구와의 간극을 좁히기 위해 구매기업의 CSR 활동이 공급업체의 내부역량에 미치는 영향과 그 메커니즘을 파악하고자 하였다. 이를 위해 공급업체의 내부역량을 신제품 창의성으로 설정하고 구매기업의 CSR 활동이 신뢰 및 정보교환 품질에 미치는 구체적 경로에 대해 파악하였다. 구매기업의 마케팅 및 구매담당자 197명을 대상으로 한 설문조사 결과, 구매기업의 기업경영 CSR 활동과 자선적 CSR 활동은 모두 공급업체의 신뢰에 긍정적 영향을 미치는 것으로 확인되었고, 신뢰는 정보교환의 품질에, 정보교환 품질은 공급업체의 신제품 창의성에 긍정적 영향을 미치고 있음을 실증하였다. 이러한 실증결과를 바탕으로 구매업자와 공급업체 간의 장기적 관계구축을 위한 이론 및 실무적 시사점을 제공하였다.