• The Korean Journal of Ecology
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• 제8권2호
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• pp.75-79
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• 1985

330 House-Mice (Rattus norvegicus; 288, Rattus rattus; 42) were captured in surveyed areas (Downtown Seoul, Yeom-gok dong, and Sung-nam city) from May 1st, 1983 to April 30, 1984. Total 6170 of their Mites were collected from the above-indicated House-Mice. The survey on the number of species, the average individual number, preference of host, infection rate, and monthly abundance of Mites reached the following results. Seven species of Mites in Rattus norvegicus, and 5 species of Mites in Rattus rattus were respectively found. Accordingly whole Mites were found in 4 families, 6 genera, 9 species including unrecorded Hirstionysssus apodemi and Roadfordia ensifera. The most common species among Mites were Laelaps nuttalli (70.6). In aspect of the average individualnumber of Mites by host, 19.9% of Rattus norvegicus is more excessive than 10.2% of Rattus rattus. Eulaelaps stabularis, Androlaelaps glasgowi, Hirstionys년 apodemi were shown in preference of host in Rattus norvegicus, while Laelaps jettmari and Rodfordia ensifera in Rattus rattus. Rattus norvegicus was much infected by Laelaps nuttalli, while Rattus rattus by Laelaps echidninus. The seasonal development of it in Rattus norvegicus and Rattus rattus was at peak in July and in September. And Ornithonyssu bacoti was at peak in June, while Laelaps echidninus and Laelaps nuttalli in July.

• 지식경영연구
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• 제21권1호
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• pp.117-136
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• 2020

In the studies for the recommender systems which solve the information overload problem of users, the use of transactional data has been continuously tried. Especially, because the firms can easily obtain transactional data along with the development of IoT technologies, transaction-based recommender systems are recently used in various areas. However, the use of transactional data has limitations that it is hard to reflect domain knowledge and they do not directly show user preferences for individual items. Therefore, in this study, we propose a method applying the word embedding in the transaction-based recommender system to reflect preference differences among users and domain knowledge. Our approach is based on SAR, which shows high performance in the recommender systems, and we improved its components by using FastText, one of the word embedding techniques. Experimental results show that the reflection of domain knowledge and preference difference has a significant effect on the performance of recommender systems. Therefore, we expect our study to contribute to the improvement of the transaction-based recommender systems and to suggest the expansion of data used in the recommender system.

• 한국실내디자인학회논문집
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• 제17권1호
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• pp.50-59
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• 2008

The study aims to establish the systematic residential satisfaction index which reflected perception of high rise residents are demand on the Apartment housing. Apartment house is developed to reduce the housing shortage caused by urbanism after industrialization in Korea. It has increased constantly since the 1970s and has become the most common residential type of Korean city dwellers. It shows Korean dwelling pattern and culture. Furthermore, it can be an index of private wealth. The main purpose of the thesis is the highlight on systematic planning process for actual users' needs. In other words, city planners are eager to reflect each individual preference when he/she designs a house. More practical and accurate research in user's satisfaction of housing can be helpful to overcome limitations of city planner's personal preference which can't provide certain evidences. First, the study has carried out the survey of importance of design elements which were selected on the basis of the results of the POE, Residential Quality, Quality Of Life which were carried out for the same subject. Then, the data were analyzed by SPSS 12+ program package in terms of frequency, factor analysis and reliability analysis. The results reveals that the Residential Satisfaction Index of Apartment housing are consisted of 8 factors which had been sorted out in factor analysis which can be interpreted to be closely related to the Physical, Social psychological and General environment.

• Journal of Information Technology Applications and Management
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• 제16권4호
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• pp.93-107
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• 2009

This study investigated consumer preferences for Internet medical information service in China using the multi-attribute utility theory. The multi-attribute utility theory is a compositional approach for modeling consumer preferences wherein researchers calculate the overall service utility by summing up the evaluation results for each attribute. We found that Chinese Internet medical information users consider the availability of information and quick response to be the most important attributes. Further, they think that the comment feature is less important as compared to other attributes such as costs and updates. In addition, we found that the Internet users having more Internet experience consider these attributes to be more important as compared to the people who are just beginning to surf the Internet. For any successful Internet business, Internet marketers should assess individual-level preference and accordingly organize a fresh campaign. As of now, Internet marketers need estimation methods to predict the market performance of new services in many different business environments. We believe that the multi-attribute utility theory is a useful approach in this regard.

• 한국의류산업학회지
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• 제4권3호
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• pp.243-247
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• 2002

The purposes of this study were 1) to investigate school uniform image preferences and the uniform modifications of male and female high school students, and 2) to find the differences between male and female students in the uniform image preferences and uniform modifications. The subjects used for the study were 195 male and 201 female high school students. The uniform image preferences consisted of three factors: comfortable & simple, unique & individual, and intelligent & classic. The uniform modifications were measured by the modifications in jacket width, sleeve length, shoulder width, slacks(skirt) length, slacks(skirt) width, and slacks(skirt) waist length. The results showed that male and female students were different in regard to uniform image preference; male students preferred unique image than did female students in their school uniforms. In addition, male and female students differed concerning uniform modifications. Generally, female students modified uniforms more than did male students. Finally, the study compared male and female students in regard to the relationships between uniform image preferences and the uniform modifications. For male and female students, the unique image preference was significantly related to the modifications in different parts of uniform.

• 성인간호학회지
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• 제20권2호
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• pp.321-330
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• 2008

Purpose: This study was intended to determine how the choice of music affects the physiological and psychological status of women college student during music therapy. Methods: A nonequivalent experimental group pretest-posttest design was used. 19 out of 54 subjects were assigned to listen to their favorite music and 17 to their unfavorite music for 20 minutes using MP3 players and headphones. Anxiety, blood pressure, pulse and blood glucose levels of the subjects were measured before treatment. The data was analyzed by Mann-Whitney and Wilcoxon signed rank test using the SPSS/WIN 10.0 program. Results: The result showed that systolic blood pressure, blood glucose and anxiety level decreased significantly in the favorite music group. however systolic blood pressure, pulse rate and anxiety level increased significantly in the unfavorite music group. The favorite music group showed a significantly higher level of satisfaction than the unfavorite music group. Conclusion: Choice of music affects the physiological and psychological status of an individual. Favorite music listening would enhance the effect of music therapy. Therefore, selection of music must be considered in light of the subject's preference and characteristics.

• Interdisciplinary Bio Central
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• 제3권4호
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• pp.13.1-13.8
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• 2011

Previous research has established the existence of individual differences with regards to individuals' optimum time of well-functioning; specifically in terms of being either morning or evening oriented. An association has also emerged between being more evening, as opposed to morning, oriented and having a greater number of sexual partners. The aim of the present study was to investigate whether "eveningness" in males is an evolved sexually dimorphic trait consistent across different cultures. A sample of 179 male Sri Lankan men residing in two different cultural and economic settings, Italy and Sri Lanka, were administered the Morningness-Eveningness Questionnaire (MEQ) followed by assessing their sexual behavior history. The results robustly portrayed a highly significant main effect of MEQ types highlighting the twofold sexual success enjoyed by the evening individuals in both regional locations. Morning oriented individuals, showed a stronger preference for going out and partying than evening-types, suggesting that the higher mating success of evening types is not due to their different lifestyles allowing more opportunities to encounter females. However, evening types exhibited a preference for flirtatious behaviors in the later part of the day. Shoulder-to-hip and handgrip strength, as measures of testosterone levels, were not significantly associated with eveningness. The results are discussed in terms of sexual selection and its interplay with human cultural variation.

• Animal cells and systems
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• 제16권4호
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• pp.343-349
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• 2012

A variety of fish species undergo an ontogenetic change in prey selectivity, and several potentially interacting factors, including nutrient requirement, microhabitat change, and foraging ability, may account for the occurrence of the shift. Here we examine the foraging ecology and ontogenetic diet shift of a micro-carnivorous goby, Pterogobius elapoides (serpentine goby), dominant component of fish assemblage in shallow rocky areas off the coast in Korea and Japan. Although most other gobies are primarily benthic carnivores, P. elapoides is a semipelagic fish; however, little is known about how those species change their foraging tactics with growth. In our diet analyses, the most common diet was pelagic copepods and benthic amphipods, and diet shift was observed from pelagic to benthic with growth. The ontogenetic diet shift seems to be the result of the preference for energetically more profitable prey in larger-size classes as well as the results of different prey availability due to among-habitat variation in diet. However, differential food preference does not appear to affect individual scope for searching food. Several factors such as predation pressures and interspecific resource partitioning might contribute to the changes in diet observed among size classes, which were included in our ongoing tests.

• 한국실내디자인학회논문집
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• 제18권6호
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• pp.3-11
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• 2009

The ratio of old persons among the total population is rapidly increasing and the apartment has become to the representative housing type in Korea. This means that many old persons would live in multi-family houses. Therefore the study was intended to examine the preferred characteristics of interior space organization in multi-family house by the aged. The characteristics were the number and usage of bedroom, necessity and type of dress room, type of living room, arrangement of work centers in kitchen, LDK type, the number and layout of bathroom, and type of entrance and balcony. The subjects were 122 old persons who lived in multi-family houses in Ulsan. The individual interview was carried out for collecting the data. The results were as the followings; The characteristics of interior space organization in multi-family houses preferred by the elderly were three bedroom, two bathroom, DK or LDK type, open planned living room, L shape arrangement of kitchen work center, entrance connected directly to outdoor space such as elevator hall or corridor, and the balcony located in front of living room and at the back of small bedroom. Even thouth the average age of population has increased, many apartments still be planned and provided without consideration of old persons. This study would contribute to plan the multi-family houses for the elderly.

• 디지털융복합연구
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• 제19권11호
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• pp.135-144
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• 2021

본 연구에서는 밀레니얼 세대를 중심으로 한 욜로 추구 현상의 기저 매커니즘을 파악하여 지각된 경제 불황의 현재 편향적 소비 행동에 미치는 영향을 알아보고자 하였다. 또한 지각된 경제 불황이 소비자의 현재 편향적 선택 행동에 미치는 영향을 매개하는 요인으로 개인의 고정주의 성향을 제안하고 이를 실증적으로 검증함으로써 암묵적 이론 관련 연구 결과를 확장하고자 하였다. 학부생을 대상으로 한 세 번의 실험 연구에서 부정적 경제 상황이 점화되거나, 부정적 경제 상황을 더 높이 지각한 소비자들은 현재 편향된 소구에 대한 더 높은 선호를 보고하였고, 현재에 편향된 대안을 선호하는 경향을 보여주었다. 이러한 연구 결과는 저성장과 코로나 19 사태로 경기 침체를 경험하는 현 상황에서 마케터에게 보다 효과적이고 유용한 실질적 지침을 제공한다.