• Asian Journal for Public Opinion Research
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• 제5권3호
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• pp.204-227
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• 2018

This paper seeks to interrogate the very assumption of "sociality" in social media at a conceptual level and substantiate it with the help of information collected on aged people's use of conventional media $vis-{\grave{a}}-vis$ so called "social media" from the field work. Although global literature has written the obituary of mass media and promoted the "sociality" of social media, one needs to critically engage with such statement. Such statements have been an outcome of the established status of the "post broadcast" model of media where conventional media is in existence for some time and accessible to everyone in society. Further, this paper seeks to explore the interplay of new media in the life of the aged population in select areas of Kolkata city in the state of West Bengal, India. There are few studies on the ageing population's use of new media in the Indian context. While many of the studies reveal the new media literacy among the youth, this is unimportant as both the new media and the youth are relatively young as a field of research in media studies in India. What is missed in the earlier studies is, how new media plays an important function in the life of the aged population. How do older adults engage with the skilling and deskilling process of media literacy in their everyday life? And finally, do new media provide an extension to their on-going social relations? With the help of substantive details, the present study addresses the aforementioned queries.

• 유통과학연구
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• 제14권10호
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• pp.165-178
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• 2016

Purpose - This study aims to empirically verify the impact of media richness, social presence, and prior life satisfaction on various continual usage or withdrawal behaviors of SNS users via both a positive path of satisfaction and a negative path of relative deprivation. By identifying these causal paths, we observe dynamic interactions of SNS user psychology in a balanced view, and provide some implications about design principles for SNS providers. Research design, data, and methodology - We developed 16 hypothesis based on media richness theory, social presence theory, social comparison theory, the literature about relative deprivation, and the literature about the various reactions of IS users. The rich SNS media, social presence recognition among peer SNS users, and prior life satisfaction could generate positive experience, attitude, and virtuous behavioral intentions among SNS users. At the same time, rich media, low social presence, and low prior life satisfaction could generate relative deprivation and could increase withdrawal behavioral intentions such as refusal to provide information, misrepresentation of information, and removal of uploaded information in SNS. Scenario surveys were conducted to collect data from potential SNS users. Data from 357 surveys were collected and analyzed through a PLS algorithm to test the hypotheses. Results - Media richness, social presence, and prior life satisfaction could significantly increase perceived enjoyment, satisfaction, and behavioral intention of continual usage and knowledge sharing. They also could significantly decrease refusal and misrepresentation intention. Relative deprivation is significantly decreased only by prior life satisfaction. Relative deprivation could not significantly decrease satisfaction, but it could significantly increase misrepresentation and removal intention, which could be regarded as information distortion intention. Conclusions - SNS providers should focus on developing rich media and social presence support because these two variables could impact the positive experiences of SNS users. Moreover, the positive experiences could heavily influence SNS user behavior. Some management is needed to prevent relative deprivation and its consequences of misrepresentation and removal intention. SNS providers should prevent SNS users from excessive image misrepresentation and removal as this information distortion could be the source of relative deprivation.

• 한국발생생물학회:학술대회논문집
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• 한국발생생물학회 2003년도 제3회 국제심포지움 및 학술대회
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• pp.109-109
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• 2003

Even though success in birth of live offspring from nuclear transfer(NT) using somatic cells in many species, detailed information on processes or mechanisms of development are not well known. Cytoplasm of bovine oocyte has been known to support the development of nuclear transferred embryos using nuclear donor cells from different species. Therefore, interspecies NT might be used to find answers of some questions in basic aspect of nuclear transfer In this study, we examined the developmental potential of reconstructed embryos when bovine oocyte as a cytoplasm recipient and mouse embryonic fibroblast as a nuclear donor were used. The nuclear transfer units were aliocated in Group 1 (murine block media and normal media) and Group 2. (bovine block media and normal media). NT units were not blocked at 2-cell stage regardless of types of medium. On mouse media, poor development of interspecies NT units was observed compared to bovine media. However, as NT units cultured in bovine normal medium, embryos developed over 8-cell stage. Further studies performed to increase the developmental rate in condition of antioxidant treatment. Despite low development, bovine-murine interspecies nuclear transferred embryos could develop to blastocysts and they showed that blastocyts rate of antioxidant group was superior to those of non-antioxidant group. Next, we investigated gene expression pattern which is carried out for zygotic activation. The Xist gene is expressed in female mouse embryo after zygotic activation of 4-cell stage. But interspecies nuclear transferred embryos do not express Xist gene at 4-cell stage. As a result, it is suggested that the bovine cytoplasm controls the early preimplantation development in interspecies NT However, the development of later stages might require genomic control from transferred donor nucleus. Therefore, even though the involvement of several other factors such as mitochondrial incompatibility, effective development of embryos produced by interspecies NT requires proper genomic activation of donor nucleus after overcoming the cytoplasmic control of recipient oocytes.

• 농업생명과학연구
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• 제50권1호
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• pp.137-146
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• 2016

This experiment was designed to assess the physical and chemical properties of growing media substituted with a range of increasing concentrations of pretreated wood and to relate these properties to plant growth responses. For preparing the growing media, each material was combined with rural soil, peat, perlite and pretreated wood. Physicochemical properties studied were similar to ideal substrate ranges for plant growth on growing media, including pretreated wood. Physical properties were also well maintained over time. In comparison to plants growing in 100% rural soil, tall fescue(Festuca arundinacea) in the prepared growing media achieved better growth, especially when using the 50% rural soil + 50% PPW(peat + perlite + pretreated wood, 3:1:6(w/w/w)) and 30% rural soil + 70% PPW (peat + perlite + pretreated wood, 3:1:6(w/w/w)), and showed improved germination percentage. We confirmed the potential use of growing media, including pretreated wood. Furthermore, our results show a correlation among the physicochemical properties of tall fescue(Festuca arundinacea); physical properties were significantly influenced by germination and aerial parts. The root length of physicochemical properties was correlated with bulk density and organic compound (p<0.01).

• 한국콘텐츠학회논문지
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• 제14권12호
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• pp.694-705
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• 2014

스마트 미디어의 등장은 미디어에 대한 정의와 범위 뿐 아니라 이용의 개념까지 새로운 격변에 몰아넣고 있다. 미디어 이용이 다중화 되는지 아니면 하나의 미디어로 수렴되고 있는지, 또는 이런 미디어 이용 변화가 일상생활에는 어떤 영향을 미치고 있는지 등에 대한 논의가 그것이다. 다중 미디어 이용 현상에 대한 기존 연구와는 달리, 이 연구는 '미디어 레퍼토리'를 이론적 근거로 삼는다. 하지만 많은 기존 연구들은 미디어 레퍼토리에 따른 이용 현실을 결코 완전하게 설명하지 못한다. 즉 레퍼토리 유형을 설정하고 유형별 이용 시간 등이 어떤 차이가 있는가에 대해 언급함으로써 끝을 맺는다. 이 이론의 현실 설명력을 높이기 위해서는 이용시간 등과 같은 정태적인 분석뿐만 아니라 미디어 레퍼토리 유형별로 일상생활이 어떻게 달리 구성되는지 등과 같은 동태적인 분석이 필요하다. 이 연구는 그 동안의 미디어 레퍼토리 관련 연구의 한계를 지적하고, 이에 근거해 미디어 레퍼토리와 일상생활 간의 관계를 검증함으로써 관련 연구의 지평을 넓히고 있다.

• 한국컴퓨터정보학회논문지
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• 제21권5호
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• pp.19-29
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• 2016

This paper suggests a method to refine a massive collective intelligence data, and visualize with multilevel sentiment network, in order to understand information in an intuitive and semantic way. For this study, we first calculated a frequency of sentiment words from each movie review. Second, we designed a Heatmap visualization to effectively discover the main emotions on each online movie review. Third, we formed a Sentiment-Movie Network combining the MDS Map and Social Network in order to fix the movie network topology, while creating a network graph to enable the clustering of similar nodes. Finally, we evaluated our progress to verify if it is actually helpful to improve user cognition for multilevel analysis experience compared to the existing network system, thus concluded that our method provides improved user experience in terms of cognition, being appropriate as an alternative method for semantic understanding.

• Journal of the Korean Wood Science and Technology
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• 제45권4호
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• pp.419-431
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• 2017

The forest slopes cause substantial local changes in soil properties and an increase in soil erosion after extreme rainstorms. The high soil erosion rates on forest slopes need the effective use of growing media to control the soil runoff. Therefore, we prepared six different lignocellulosic growing media such as peat, perlite, and wood meal as the base materials and carboxymethyl cellulose (CMC), glucomannan, starch, old corrugated containerboard, and computer printout as the additional materials for the prevention of simulated rainfall-induced runoff. The growing media containing old corrugated containerboard efficiently reduced the percentage of soil runoff; however, it could not completely cushion the influence of crust. The best results for plant growth, except in the leaf area, were also obtained with the growing media containing old corrugated containerboard, suggesting an interesting way of paper recycling and an economic benefit for plant or crop growth in forest slope.

• 한국미생물·생명공학회지
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• 제51권1호
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• pp.10-17
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• 2023

Dairy products are extensively used as carriers of probiotic strains that have potential health benefits. Assessment of the viability of probiotic strains during manufacturing is important to ensure that products meet recommended levels. Hence, the method for accurately quantifying lactic acid bacteria (LAB) in probiotic or dairy products is required. The present study aims to examine the performance of de-Man Rogosa Sharpe (MRS), plate count agar with bromocresol purple (PCA with BCP), and glucose blood liver (BL) agars recommended in the Korea Food Code guidelines for counting LAB. Analysis of the performance of culture media containing 19 lactic acid bacterial species commonly encountered in probiotic and dairy products showed no statistically significant difference between 18 reference strains and three culture media (p > 0.01). Furthermore, the suitability of three culture media was verified for the quantitative assessment of LAB in 25 probiotic and dairy products. The number of LAB in three culture media was determined to be more than 10⁷ colony-forming unit (CFU)/ml for fermented milk products and 10⁸ CFU/ml for condensed fermented milk and probiotic products, indicating that they all satisfied the Korea Food Code guidelines. Moreover, there was no statistically significant difference in the amount of LAB counted in all three culture media, suggesting that they can be used to isolate or enumerate LAB in commercial products. Finally, three culture media will be useful for isolating and enumerating LAB from fermented foods as well as gut microflora.

• 디지털융복합연구
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• 제9권5호
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• pp.99-111
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• 2011

오늘날 SNS를 포함하여 다양한 스마트미디어들의 급속한 보급으로 새로운 스마트융합시대가 도래하고 있다. 그러나 이러한 스마트융합사회가 아직 효율적이지는 못하다. 특히 장시간의 로딩시간, 비싼 단말기와 이용료, 개인정보의 유출, 스팸메일과 음란폭력물, 잦은 끊김, 접속 장애, 정보격차 등 무수한 이용의 어려움 들이 아직 해결되지 못하고 있다. 이러한 문제점들은 당연히 방송통신 정책의 과제가 될 것이다. 이러한 관점에서 본 논문은 보다 효율적인 스마트융합사회를 만들기 위하여 역동적인 삶의 질에 기초한 방송통신 정책들을 제안하고 있다. 이러한 정책들은 새로운 방송통신 콘텐츠의 개발과 생산 그리고 안정적인 서비스의 제공과 프라이버시의 보호 등 지금까지 제기되는 정책적 과제들을 해결하는데 크게 기여할 수 있는 내용들이다.

• 대한가정학회지
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• 제49권8호
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• pp.97-111
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• 2011

This study aimed to present marketing communication strategy for lifestyle groups. Consumers' preference on advertisement media/information source, advertisement appeal types, and on-line media use were examined by lifestyle groups. This study was executed by web survey and off-line survey. A total of 141 data was obtained and data were analyzed by PASW 18.0. Results were as follows: First, 4 types of lifestyle groups were made up by holistic approach; 'price oriented', 'traditional symbolic', 'positive life', and 'open mind enjoyment'. 'Positive life type' preferred every type of ads media. 'Traditional symbolic type' liked magazine and 'price oriented type' and 'open mind enjoyment type' thought off-line store display more important. For ads appeal types, 'positive life type' preferred social oriented appeal type. Every group except 'price oriented type' preferred emotional appeal type and especially 'open mind enjoyment type' liked the most emotional ads appeal type.