• The Journal of Korean Institute of Communications and Information Sciences
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• v.27 no.10C
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• pp.1015-1026
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• 2002

As per increasing research interest in the field of collaborative computing in recent year, the importance of security issues on that area is also incrementally growing. Generally, the persistency of collaborative system is facilitated with conventional authentication and cryptography schemes. It is however, hard to meet the access control requirements of distributed collaborative computing environments by means of merely apply the existing access control mechanisms. The distributed collaborative system must consider the network openness, and various type of subjects and objects while, the existing access control schemes consider only some of the access control elements such as identity, rule, and role. However, this may cause the state of security level alteration phenomenon. In order to handle proper access control in collaborative system, various types of access control elements such as identity, role, group, degree of security, degree of integrity, and permission should be taken into account. Futhermore, if we simply define all the necessary access control elements to implement access control algorithm, then collaborative system consequently should consider too many available objects which in consequence, may lead drastic degradation of system performance. In order to improve the state problems, we propose a novel access control framework that is suitable for the distributed collaborative computing environments. The proposed scheme defines several different types of object elements for the accessed objects and subjects, and use them to implement access control which allows us to guarantee more solid access control. Futhermore, the objects are distinguished by three categories based on the characteristics of the object elements, and the proposed algorithm is implemented by the classified objects which lead to improve the systems' performance. Also, the proposed method can support scalability compared to the conventional one. Our simulation study shows that the performance results are almost similar to the two cases; one for the collaborative system has the proposed access control scheme, and the other for it has not.

• The Korean Journal of Archival Studies
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• no.14
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• pp.191-240
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• 2006

For long-term preservation of electronic records, the information on the whole processes of management from the time of creation of the electronic information should be captured and managed together. Such information is supported by preservation metadata thus the implementation of preservation metadata is important for preservation of electronic records maintaining the record-ness. Preservation metadata is the information that supports the process of digital preservation and functions th maintain long-term viability, renderability, understandability, authenticity and identity of digital resources. Preservation metadata should be developed applying the international standard Reference Model for an Open Archival Information System(OAIS) to have international interoperability for exchange and reuse. Initial international preservation metadata schemas were developed standardizing the OAIS Reference Model. But the preservation metadata schema of Victorian Electronic Records Strategy(VERS) and recently published Data Dictionary of PREMIS Working Group were developed in advanced types that are different from the existing framework. Those were advanced th practical ones from conceptual one. Comparing these two cases, proposed the elements of integral preservation metadata for long-term preservation of electronic records. This thesis has the significance that it has suggested the direction for future development of the elements of preservation metadata by setting the past discussions related to preservation metadata in order and proposing integral preservation metadata elements for long-term preservation of electronic records.

• Korean Journal of Plant Taxonomy
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• v.31 no.3
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• pp.223-251
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• 2001

Morphological characters of section Atratae of the genus Carex (Cyperaceae) were reexamined. The epidermal patterns of perigynium, achene and leaf were investigated using by a scanning electron microscope (SEM) and a light microscope (LM). Morphological characters such as length and width of stem, leaf, bract, spike, scale, perigynium and achene, and shape of cross-sectioned stem, and leaf, spike, scale, apex of scale, perigynium, beak of perigynium and achene, and epidermal pattern of perigynium, achene and leaf (shape of fundamental epidermal cell and cell wall, type of silica body, shape of beak epidermal cell and cell wall in perigynium, subsidiary cell shape, size and frequency of stomatal complex of leaf) were useful for the identifications of the observed seven taxa. C. gmelinii, C. hancokiana and C. peiktusani have been confused each other due to similar morphological characters. Howerever these taxa were distinct with respect to shape of scale, apex of scale, perigynium, type of silica body, frequence of stomatal complex, subsidal cell shape, and epidermal patterns of achene and leaf.

• Research in Community and Public Health Nursing
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• v.10 no.2
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• pp.549-563
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• 1999

This paper is a review of findings from studies that have used vignettes to identify salient characteristics that have been found to influence individuals' perceptions of child sexual abuse. Vignette studies finding avoid to unreliable and biased self-reports. A review of the literature revealed that factors influencing the perception process are divided into two groups. One group of factors relates to the details of the abuse situation including characteristics of sexual act (intrusiveness of the sexual act and the frequency of acts), characteristics of victim (age of victim, the gender of victim and victim resistance), and characteristics of perpetrator (age of perpetrator, gender of perpetrator and the relationship of the perpetrator to the child). The other group of factors focused on in research reflects individuals background variables that affect personal interpretations of the abuse situation. These factors include professional affiliation of the respondent and various other. demographics (e.g., gender of respondents, age, education, marital status, parental status, number of children, the length of experience, etc.), along with respondents own child sexual victimization experiences. Based on theses findings vignette studies have allowed researchers to learn how individuals vary their perceptions of various situational aspects of child sexual abuse situations, and how background characteristics of the respondents as observers may influence these perceptions.

• Science of Emotion and Sensibility
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• v.16 no.1
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• pp.1-10
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• 2013

The purpose of this paper is to investigate the adequate clothing pressure of upper and lower body foundation garment and subjective assessment of those compressive foundation depending on various wearing conditions. Eighteen women in their 30s and 40s participated in the experiments for this study to evaluate the level of clothing pressure of girdle and waist nipper. Subjects were divided into two groups by the wearing habits of foundation, one is the group of wearing foundation garment 'tightly' and the other is 'loosely', It was found that the group wearing foundation garment 'loosely' was much more sensitive than the group of 'tightly' in everyday life. The adequate pressure of upper foundation, waist nipper was about $1.5{\pm}0.8$ kPa which is lower than that of the lower body foundation, girdle. And at the same time, the sensitivity of the pressure level was higher when subjects are wearing waist nipper compared with wearing girdle. Therefore, precise pattern making process is necessary to meet the adequate level of pressure of the upper body foundation such as waist nipper, specially for those who used to wear clothing loosely.

• The Journal of the Korea Contents Association
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• v.15 no.6
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• pp.547-564
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• 2015

These days, corporations which are eager to improve employees' performance and focus on consistent management highlight core values and core value education. The purpose of this research is to present a case study on the core value education administered by large corporations, to analyze and compare them, and finally present implications for the core value education. For this purpose, 5 large corporations in Korea have been selected. The data was collected from secondary sources and through interviews with the present and former educators in charge of core value education of those corporations. This study found that 5 large corporations commonly considered their core value as a main source of competitiveness and focused on the systematic core value education. But at the same time, each of them chose its own way to educate employees. Their strategies, management methods, and connection to the personnel policy differed in details. 5 large corporations were shown that they reached the level of understanding and empathy, but only 2 large corporations were interviewed as to reach the level of practice. To make core value internalized in the employees' thoughts and acts, it is required to strengthen alliance between core values and work which encourages worker's real practice in their daily lives, to have a diverse curriculum according to the work categories and regions, and to emphasize the connection with other policies especially evaluation policy.

• Journal of Marine Bioscience and Biotechnology
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• v.1 no.3
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• pp.186-192
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• 2006

Short interspersed repetitive elements (SINEs) are dispersed throughout eukaryotic genomes. These SINEs have been shown to be excellent phylogenetic markers for the closed related species. In this report, we isolated two novel families of SINEs from the mud loach. The two SINE families, mlSINE-L and mlSINE-S, have genomic lengths of about 410bp and 270bp, respectively. 5' and 3' ends of the SINE families are well conserved and highly homologous to each of corresponding ends of RSg-1 and SmaI SINEs. Phylogenetic analysis shows that mlSINEs are unique to the mud loach. A dot blot hybridization experiment shows that mlSINE-L has an estimated copy number of $1{\times}10^3$ per $2{\times}10^9bp$ (2.8 pg) and is more frequently distributed at nuclear matrix attachment regions (MARs) than loop DNAs. The result suggests that mlSINEs may preferentially integrate in or near MARs.

• The Journal of the Korea Contents Association
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• v.15 no.5
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• pp.295-306
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• 2015

This study aims to investigate the aspect of volunteering and donation of highschool students in Seongnam city and further the relationship between volunteering and democratic civic consciousness. To that end, 155 students from an ordinary highschool and a foreign language highschool participated in a survey. The result showed that female students' participation rates of volunteering and monetary donations were higher than male students' but there was no difference in the participation rates between the schools. The civic consciousness level was not affected by the gender, but was affected by the schools. The scores for the attitude of democracy were better than those for the value and the participation of democracy. In particular, the students from the foreign language highschool had higher scores for the participation of democracy relative to the students from the highschool. As for the relationship between volunteering and democratic civic consciousness, there was a significant difference in civic consciousness scores between students who had participated in volunteering and those who had not, only in the case of the students from the ordinary highschool. Additionally, it was revealed volunteering and donating were compensatory behavior. Although single factors in volunteering influencing the civic consciousness were not found, persistence was important.

• Journal of Music and Human Behavior
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• v.18 no.2
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• pp.45-66
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• 2021

This study aimed to develop a group rap making program and examine its applicability to improve communication skills of adolescents with mild intellectual disabilities (ID). Three adolescents with ID participated in a total of six 50-minute group sessions over 4 weeks. The group rap making program included three stages: understanding the context of communication, learning how to communicate with others, and applying the communicative behaviors in a group setting. To examine changes in the participants' communication skills, the rap lyrics constructed by participants were analyzed and communicative behaviors were observed during sessions and analyzed in terms of asking questions and providing information to others. Also, a social communication skills checklist was rated by the participant's caregivers. The analysis of rap lyrics showed that the expressions included in the rap were diversified as the session proceeded. Changes in observed behaviors supported that participants became to engage in communication with others more actively in order to complete the group rap. While the social communication skills checklist tended to increase, there was a difference in degree of change depending on the level of language communication skills. These results indicate that a group rap making can be an effective option for these adolescents to learn how to communicate with their peers, which presents implications for how rap making can be used for therapeutic purpose with more diversified population.

• The Korean Journal of Vision Science
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• v.20 no.4
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• pp.461-468
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• 2018

Purpose : Tourmaline, a natural ore material, was applied to the entire eyeglasses to observe changes in intraocular pressure (IOP), one of the factors related to human ocular metabolism. Methods : After making eyeglass frames by mixing TR-90, which is the main material of eyeglass frames and 7wt% of tourmaline, The changes of intraocular pressure before and after wearing of tourmaline spectacle frames were divided into low, middle and high groups according to the intraocular pressure in 90 normal subjects (46 men and 44 women) in their 20s. Results : Total intraocular pressure was a significantly decreased to -4.14% (p<0.000) in the right eye after wearing tourmaline frames, and significantly decreased to -6.39 % (p<0.000) and -4.64 % (p<0.017) in the High and Middle groups, respectively. Total intraocular pressure was a significantly decreased to -2.74 % (p<0.004) in the left eye, and -4.58 % (p<0.000) in the High group only showed statically significant value. Conclusion : In this study, the spectacle frame containing 7wt% tourmaline was used and it was confirmed that the intraocular pressure was significantly decreased after wearing the spectacle frame, and it became close to the average value of the normal intraocular pressure range. The results of this study showed that tourmaline, which has the effect of promoting the metabolism and blood circulation of the body, has an effect on the normalization of the intraocular pressure by attaching it to the spectacle frame.