Analysis of the Social Relationship of Apartment Community Residents` Participation - Focused on Residents in Seoul City -
The purpose of this study was to identify a direction for increase of resident participation by analyzing the social relations of resident participation. In the research method, the method of statistical analysis was added to the legal institutional method. As a result, the following findings were obtained: First, it is very important that the resident representative meeting at the center of the participation of the resident organization should take the role in and responsibility for the promotion of participation. Second, it is necessary to have smooth communication with voluntary groups such as women’s association or club forming the coordinating group. Third, Among other things, it is judged that residents should have an active will to participate and practice in order to promote their participation in the apartment community. The above results imply that participation should be promoted by enabling residents to perform four functions of resident participation. Accordingly, the promotion of participation based on the function of participation is very necessary and important.
Interpersonal Approaches to Communication Research
are thought of as &dquo;self-made,&dquo; while the poor are held to be &dquo;lazy.&dquo; Skinner (1971) points out that his theory of operant conditioning through reinforcement is resisted partly because of the popular tendency to assign both the &dquo;blame&dquo; and the &dquo;credit&dquo; for human conduct to the person’s internal psyche. Perhaps, then, it is understandable that even our &dquo;social&dquo; science employs mainly intrapersonal concepts, such as attitudes, motives, and personality traits, to account for behavior.
An injectable and thermosensitive hydrogel: Promoting periodontal regeneration by controlled-release of aspirin and erythropoietin.
Periodontitis is an inflammatory disease induced by complex interactions between host immune system and plaque microorganism. Alveolar bone resorption caused by periodontitis is considered to be one of the main reasons for tooth loss in adults. To terminate the alveolar bone resorption, simultaneous anti-inflammation and periodontium regeneration is required, which has not appeared in the existing methods. In this study, chitosan (CS), β-sodium glycerophosphate (β-GP), and gelatin were used to prepare an injectable and thermosensitive hydrogel, which could continuously release aspirin and erythropoietin (EPO) to exert pharmacological effects of anti-inflammation and tissue regeneration, respectively. The releasing profile showed that aspirin and EPO could be continuously released from the hydrogels, which exhibited no toxicity both in vitro and in vivo, for at least 21 days. Immunohistochemistry staining and micro-CT analyses indicated that administration of CS/β-GP/gelatin hydrogels loaded with aspirin/EPO could terminate the inflammation and recover the height of the alveolar bone, which is further confirmed by histological observations. Our results suggested that CS/β-GP/gelatin hydrogels are easily prepared as drug-loading vectors with excellent biocompatibility, and the CS/β-GP/gelatin hydrogels loaded with aspirin/EPO are quite effective in anti-inflammation and periodontium regeneration, which provides a great potential candidate for periodontitis treatment in the dental clinic. Statement of Significance To terminate the alveolar bone resorption caused by periodontitis, simultaneous anti-inflammation and periodontium regeneration is required, which has not appeared in the existing methods. Here, (1) the chitosan (CS)/β-sodium glycerophosphate/gelatin hydrogels loaded with aspirin/erythropoietin (EPO) can form at body temperature in 5 min with excellent biocompatibility in vitro and in vivo; (2) The faster release of aspirin than EPO in the early stage is beneficial for anti-inflammation and provides a microenvironment for ensuring the regeneration function of EPO in the following step. In vivo experiments revealed that the hydrogels are effective in the control of inflammation and regeneration of the periodontium. These results indicate that our synthesized hydrogels have a great potential in the future clinical application.