• Interdisciplinary Bio Central
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• 제2권4호
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• pp.10.1-10.5
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• 2010

Total aflatoxin and ochratoxin were detected in 3 naturally contaminated fish feed samples using immune-affinity method. The results revealed that the average levels of aflatoxins in the 3 examined samples were (15, 22 and $12\;{\mu}g/kg$) respectively while the average levels of ochratoxins were (15, 6 and $6\;{\mu}g/kg$). The results of determination of the effects of clay as a mycotoxin binder on the health status and performance of Oreochromis niloticus in comparing with a control group revealed that the survival rate in control group was 81% after the end of the culture season. The results also revealed that the survival rate in group 2 which received clay treated feed was 86%. The results of regular parasitological examination revealed the identification of trichodina as external protozoa in Oreochromis niloticus from both ponds but without manifestation of disease signs. The results of bacteriological examination revealed the isolation and identification of Pseudomonas flouresence from some moribund Oreochromis niloticus. Higher performance parameters were recorded in group 2 that received feeds treated with clay which reflected in the total production which reaches 1646.47 kg while in the control pond, the total production was1308.36 kg.

• Human Ecology Research
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• 제51권3호
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• pp.321-331
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• 2013

The purpose of this study is to develop the scale to measure family health and to analyze the data collected by the survey in order to develop the educational program for healthy family. The sample of this study is taken by 522 housewives who are living in Seoul and are over the age of 40. The data are analyzed according to frequency, percentages, t-test, Pearson's correlation analysis, and Multinomial logistic Regression analysis. The results of this study are as follows. First, the scale measuring family health is developed through interviews with the respondents, preliminary survey, and comments reviewed from specialists. The responses to the scale are significantly different depending on whether they answered their family is healthy or not. Second, minimum family performances for family health are related to the category of social involvement of the family. Third, the types of healthy family are grouped by the responses related to the current state and the status of family health. The number of the type of the worst state-the worst status of family health is the largest, followed by the number of the type of the best state-the best status of family health. Fourth, the important and significant variables that affected the types of family health are psychological variables rather than personal and household-related variables of the respondents.

• 대한지역사회영양학회지
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• 제14권6호
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• pp.798-806
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• 2009

The objective of this study was to investigate how to improve job satisfaction for dietitians and nutrition teachers by identifying influencing factors in Daejeon and Chungnam Province, South Korea. A survey was conducted among school foodservice dietitians and nutrition teachers from selected primary, middle and high school in the area. This survey consisted of general characteristics, status of their job, job satisfaction, work satisfaction and work performance. In this study we found current state of general characteristics and status of their job according to frequency analysis and the level of work satisfaction, work performance and job satisfaction using descriptive statistics. The t-test, ANOVA and Duncan-test were also conducted in order to searching for tendency of job satisfaction according to the general characteristics and the status of their job. Pearson's correlation was carried out in order to find correlation with job satisfaction. Also, factors, which influenced job satisfaction according to regression analysis, were drawn. We describe the difference of job satisfaction between irregular dietitians and nutrition teachers as well. Besides we discussed the improvement of dietitians' (nutrition teachers') work environment to raise their job satisfaction through this study.

• 한국정보전자통신기술학회논문지
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• 제10권4호
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• pp.311-317
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• 2017

The purpose of this research is to analyze the effects of social support on the job performance of workers at care facilities for elderly. For the study, a survey was conducted on 176 workers at care facilities for elderly in Gyeongsangbuk-do from the 5th of September of 5th of November, 2016. For the analysis, SPSS WIN 18.0 and Amos 21.0 programs were used to conduct t-test, one-way analysis of variance, correlation analysis and multiple regression analysis at a significance level of 5%. The research results were as follows. First, the level of social support on the workers varied depending on their marital status, religions and years of service, while no difference was found for different genders, ages, education levels, positions, monthly incomes and workloads. Second, the job performance of the workers varied with their marital status, with the married workers performing at higher level then single workers. Third, it was found that the job performance of workers at care facilities for elderly has positive correlation with the level of social support. This paper is required to be used as a primary source for political development on the job performance of workers at care facilities for elderly.

• 수산경영론집
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• 제48권1호
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• pp.1-16
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• 2017

The fisheries industry has led the Korean economy, and has been achieving high-level position in the world. However, this industry meets aging, low growth and profit. In order to overcome this critical situation, it is needed to understand the overall status of industry. In industry level, most of previous researches focused on ocean industry rather than fisheries. In addition, scholars have been getting a lot of attention about fisheries cooperatives, fishing-ports, methods of fishery, and manufacturing process in fisheries sector. The aim of this research is analysis of domestic fisheries industry's managerial performance using data envelopment analysis(DEA) considering operating and scale view. Furthermore, the comparative analysis is performed by firm size, and industry type. In results, fisheries industry's managerial performance is not high, overall. In more detail, most of big size firms are under decreasing returns to scale(DRS) status. Fishery processing industry's performance is low, and fishery distribution industry has the best performance. This paper suggests that transferring operating capability from big firms to small firms, and policy supports and firm's activities should be accompanied for high-value added in fisher, and fishery processing industries.

• 대한치위생과학회지
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• 제5권2호
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• pp.165-174
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• 2022

Background: This study was conducted to investigate the actual status of dental hygienists' CPR-related educational experiences and the actual status of dental hygienists' CPR license retention, and to investigate the differences and correlations among CPR-related knowledge, attitudes, and performance abilities. Methods: An online self-reported questionnaire was filled out by 200 dental hygienists nationwide from May 6 to 29, 2019. The data regarding the sociodemographic characteristics, CPR-related knowledge, attitudes, and performance abilities were collected and analyzed using the chi-square test, independent t-test, one-way ANOVA, and the Pearson correlation coefficient using IBM SPSS Statistics version 20.0. Results: Dental hygienists with CPR-related education experience showed high levels of knowledge in the area. Dental hygienists with CPR-related education experiences and dental hygienists with CPR licenses showed high CPR performance abilities. Positive correlations are observed among CPR-related knowledge, attitude, and performance abilities. Conclusion: As CPR-related education has been found to be of value and importance to dental hygienists, systematic educational programs as well as support for regular education will need to be implemented.

• 한국환경교육학회지:환경교육
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• 제17권2호
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• pp.106-121
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• 2004

This thesis examined and analyzed the occupational status of the promising occupations in the environmental industry. A study on the status of the occupations in the environmental industry is very necessary for planning policies and improving occupations in the environmental industry. Studies and discussions regarding the status of the occupations in the environmental industry, however, were extremely insufficient. A survey of the employees in the environmental industry was conducted in order to certainly comprehend the status of the occupations, educational and training programs, and occupational changes and to utilize the result of the survey as foundational data necessary for occupational studies in the environmental industry. The subject of the survey was limited to the employees who had work for one or more years in twenty promising occupations in the environmental industry. The content of the survey was occupational performance competencies, occupational careers, the degree of occupational satisfaction, vocational education and training, working conditions, occupational changes, and the security of the human resources. Dissimilarities as well as similarities among twenty promising occupations were discovered according to the analysis result of the occupations in the environmental industry. A major discovery was that there are lots of difficulties in securing environment-related human resources. Primary reasons for the difficulties were inconsistent working conditions and the shortage of the qualified human resources. To solve the difficulties in securing the human resources, the curriculum of the educational and the training institutes should be innovated and the human resources from the institutes could be applied to the workplace directly after the graduation.

• 벤처창업연구
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• 제17권1호
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• pp.1-12
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• 2022

본 논문은 주주의 구성 및 지분이 기업 성과에 유의미한 영향을 미친다는 기존 재무, 경영전략의 문헌에 기반, 벤처 신디케이트(VC syndication) 내 리드투자자 비중 및 투자자 지위가 투자유치 및 확대에 미치는 영향력을 살펴본다. VC 신디케이트 내의 리드 투자자의 증가는 시장 내 영향력 증가, 높은 가시성 등의 이점을 기반으로 투자 기업의 가용자원을 증가시켜 투자 성과에 긍정적으로 작용한다. 반면 리드투자자는 투자 전략수립과 실행에 있어 상반된 의견을 제시하거나 영향력을 관철시키려는 경향을 보이기 때문에 리드 투자자의 증가가 갈등을 조장할 수 있으며, 이때 조정을 위해 많은 시간과 비용을 소모해 잠재투자자의 진입장벽을 높이거나, 기존 투자자들의 추후 투자 수준을 낮추는 등의 비용을 수반할 수 있다. 따라서 우리는 리드 투자자는 투자성과에 긍정적인 영향력을 미치지만 일정 수준을 넘어서는 경우 투자 성과가 하락하는 역 U자 형태를 보일 것이라는 가설을 수립하였다. 또한 신디케이트 내 VC의 지위가 높아질수록 이견이 쉽게 조율되지 않아 리드 투자자 비중 증가에 따른 비용이 더욱 증가할 것으로 예측하였다. 본 연구는 Thomson VentureXperts 데이터에서 추출한 1991년부터 2005년까지 약 15년간의 24,677건의 VC 신디케이트 투자 데이터를 기반으로 가설을 검증하였다. 연구결과 신디케이트 내 리드투자자의 비중과 투자성과는 역 U자 관계를 보이며 신디케이트 내부 VC 지위가 높아질수록 갈등에 따른 투자 성과 하락이 더욱 강화된다는 것을 확인하였다. 본 연구결과는 투자자 간의 관계 기반의 힘의 역학을 고려할 필요성 및 명확한 역할 분담 및 조정시스템 도입에 관한 논의가 필요하다는 점을 시사한다.

• 한국정보처리학회논문지
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• 제5권3호
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• pp.751-762
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• 1998

본 연구의 목적은 멀티캐스트 통신에서 송신자가 멀티미디어 데이터를 한 그룹의 구성원들에게 전송할 때, 그룹내의 수신자들이 전송된 데이터를 잘 수신하고 있는 가에 대한 상황을 정기적으로 확인하여 이질적인 단말 및 통신망 환경에서 효율적인 멀티미디어 서비스를 제공하고자 하는 데 있다. 특히, 연구에서는 송신자의 전송 데이터를 수신자가 어떻게 수신하고 있는 가에 대한 상태를 파악하는 과정에서, 수신자들의 전송 정보를 절감시킴으로써 송신자 측에서 상태 정보의 폭주로 인한 성능 저하를 개선하는데 초점을 두고 있다. 본 연구의 기본 아이디어는 그룹의 행위를 어떻게 보는 가의 관점에서 출발하는 데, 제안된 방식에서는 그룹의 구성원 중 가장 열악한 상황에 있는 수신자 즉, 대표 수신자가 그룹의 상황을 대표하는 것으로 가정한다. 다시 말해, 이 대표 수신자의 성능이 저하되면 전체 그룹의 성능이 저하된 것으로 간주하고, 반대로 대표수신자의 성능이 향상되면 전체 그룹의 성능이 향상되는 것으로 간주하게 된다. 제안 알고리즘에서는 대표 수신자가 다른 수신자 보다 먼저 상태 정보를 송신자에게 통보하도록 하며, 다른 수신자들은 이 대표 수신자의 상태정보를 수신할 때 장신의 상태와 비교하여, 자신이 더욱 열악한 경우에만 추가적인 응답을 수행하도록 함으로써 불필요한 응답을 제거하고자 하는 것이다.

• 한국군사과학기술학회지
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• 제11권6호
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• pp.81-89
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• 2008

University Research Centers specialized in defense technology(DURCs) were designed to develop fundamental knowledge and to acquire core technologies related to defense development by conducting creative and interdisciplinary research. The centers also have a function of fostering scientists and practitioners possessing defense-oriented cross-disciplinary knowledges. Since the outset of the DURC in 1994, Sixteen DURCs have been funded and eleven DURCs are now in operation. The purpose of this paper is to analyse the operational status and the performance of DURCs and to suggest ideas on improving the effectiveness of the DURC program by comparing with the Korea Excellent Research Center program and the U.S. National Science Foundation(NSF) Engineering Research Center(ERC) program.