• Korean Journal of Metals and Materials
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• v.48 no.4
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• pp.369-375
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• 2010

Ti-6Al-4V ELI alloy, which is commonly used as a biomaterial, is associated with a high elastic modulus and poor biocompatibility. This alloy presents a variety of problems on several areas. Therefore, the development of good non-toxic biocompatible biomaterials with a low elastic modulus is necessary. Particularly, hydroxyapatite (HA) is an attractive material for human tissue implantation. This material is widely used as artificial bone due to its good biocompatibility and similar composition to human bone. Many scientists have studied the fabrication of HA as a biomaterial. However, applications of bulk HA compact are hindered by the low strength of HA when it is sintered. Therefore, HA has been coated on Ti or Ti alloy to facilitate good bonding between tissue and the HA surface. However, there are many problems when doing this, such as the low bonding strength between HA and Ti due to the different thermal expansion coefficients and mechanical properties. In this study, a Ti-HA composite with a porous surface was successfully fabricated by pulse current activated sintering (PCAS) and a subsequent leaching process.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.35 no.1
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• pp.243-272
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• 2024

This study was conducted with the purpose of providing suggestions for improvement through a comparison and analysis of the services of the U.S. National Library of Medicine, the world's largest medical library, and the National Center for Medical Information and Knowledge, Korea's national medical library. Core services that need to be improved are topic-specific services, community services, services by user type, educational services, technology, facility/space services, research support services, and marketing and public relations and cooperation services. Specialized libraries are also increasingly interested in topic-specific services and public services. Efficiency in access through services for each type of user is needed, and various types of educational services that do not limit the target audience are also needed. Marketing through AI, virtual reality, and technology, facility, and space services to support the disabled, research support services centered on research ethics, research grants, and programs, and collaborative services with domestic and international libraries, academic societies, institutions, and local communities in other related fields and publicity are also needed.

• 대한공업교육학회지
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• v.40 no.1
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• pp.23-39
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• 2015

The purposes of this study were to evaluate the effectiveness of teacher training program for specialized school teacher in invention patent field and to explore the program improvement ideas. The study was carried out through on survey method and using program evaluating model developed for this study. The study subjects are 39 specialized high school teacher participated in training program about invention patent field at CNU-IECT(Invention education center for teacher). The data collection was done on August 2, 2014. The 37 questionnaies were analyzed. The educational needs of the training program were calculated by using the Borich(1980)'s needs assessment formula. The evaluating model was developed by the team. Major findings of this study were as follows; First, the training needs of specialized high-school teachers was high. Second, the satisfaction of the training program was high. Third, the overall effectiveness of training programs was high. Fourth, the improvement ideas were divided into four area - 1)The status quo area, 2) the alternatives exploration area, 3) the strategy modifications area, 4) the expected expansion area.

• The Journal of Korean society of community based occupational therapy
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• v.5 no.1
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• pp.55-62
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• 2015

Objective : The purpose of this study was to investigate the satisfaction of occupational therapy service for parents of children with disabilities using specialized child-care centers for disabled in Gyeongbuk. Methods : The subjects of this study were 104 parents who have experience in occupational therapy at 14 specialized child-care centers for disabled in Gyeongbuk. A questionnaire was conducted from July, 2014 to March, 2015. Descriptive statistics of frequency, mean, standard deviation, and One-Way ANOVA study were used to analyze data. Results : Disabled children got occupational therapy at first when they were 3.25 years, on average. Duration of occupational therapy use were 31.84 month, on average. The subjects determined to got occupational therapy mostly through consultation nurseries(40.4%). Most of them got speech therapy(78.0%) other than receiving occupational therapy service, responded very necessary to occupational therapy(69.3%). Satisfaction of occupational therapy service were 4.49 point at attitude of occupational therapists, 4.36 point at occupational therapy program, and 4.26 point at environment of occupational therapy room. Attitude of occupational therapists were the highest satisfied. Conclusion : This study would contribute to effective and meaningful occupational therapy through objective view

• Culinary science and hospitality research
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• v.16 no.1
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• pp.137-151
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• 2010

To survey general recognition on cooking activities and interest and satisfaction on cooking programs for children, a questionnaire was surveyed and analyzed based on its data from the mothers of students who have experience attending a cooking program for children. In general recognition, the recognition of the mothers who attended a cooking program of a specialized culinary academy was higher than that of the mothers who attended a cooking program of a cultural center. There were significant differences in the recognition level according to the types of educational institutions. In the interest of mothers on the effects that can be obtained from cooking programs for children, the interest of mothers who attended a cooking program of a specialized culinary academy was higher than that of mothers who attended a cooking program of a cultural center. In the satisfaction of mothers on cooking programs for children according to the types of educational institutions, the satisfaction of mothers who attended a cooking program of a specialized culinary academy was higher than that of mothers who attended a cooking program of a cultural center. Mothers are satisfied especially with the teaching contents, cooking class and teaching ability of teachers.

• Korean Journal of Community Nutrition
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• v.4 no.1
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• pp.83-94
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• 1999

This study was carried out to investigate the general characteristics of public health nutritionists, the current status of nutrition services operation, the recognition about nutrition services of public health center related man power, the job satisfaction and self-assessment and the need for a retraining course of public health nutritionists. The subjects were 58 public health nutritionists who responded to the questionnaire distributed at the annual retraining program in 1998. The results of this study are summarized as follows. 1) 46.5% of the nutritionists were 26-30 years old, 62.1% were 4 year university graduates 74.1% were food and nutrition majors and 51.7% were daily workers. 2) Among the public health center-related manpower, the recognition about nutrition services was the highest for the manager of family health section, followed by the head of public health centers, and then the general nurse in public health centers. 3) The ranking of the reasons for job satisfaction of the public health nutritionists was, relationship with colleagues(3.84), inhabitants response after nutrition counselling(3.53), specialized value realization/conviction about duty(3.35), contents of the work(3.10), value achievement(3.08), self achievement/development(3.00), self discretion(2.92), participation in policy decisions(2.90), work load(2.75), chance of retraining and acquisition of new information(2.73), working environment(2.69), supervisio $n^port by superiors(2.67), salary(2.38), supply of necessary education material, technique(2.37), and budget security(2.22). 4) The satisfaction of the inhabitant's responses after nutrition counseling was the highest among the 4 year university graduates(p<0.05), the satisfaction of the specialized value realization/conviction about duty was the highest among the nutritionists 26-30 years old(p<0.05). Food and nutrition majors(p<0.05) and those having worked less than 3-5years at public health centers also showed much satisfaction(p<0.05). Satisfaction with the salary was the lowest among the food and nutrition majors(p<0.01) and daily workers(p<0.001). The satisfaction with the participation in policy decisions was the lowest among the daily workers(p<0.01). 5) The ranking for the level of self-assessment were, nutrition and dietetic practice(2.92), communication(2.80), management(2.77), public health science and practice(2.66)(p<0.01). The general characteristics such as the level of education, major, employment condition, current public health center's tenure, and charge experience of the nutrition guidance work were not significantly related to self-assessment except the management part(p<0.05). The higher the satisfaction of specialized value realization/conviction about the duty, the better the total score on the self-assessment(p<0.05)..

• IMMUNE NETWORK
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• v.9 no.4
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• pp.115-121
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• 2009

Natural killer (NK) cells play key roles in innate and adaptive immune defenses. NK cell responses are mediated by two major mechanisms: the direct cytolysis of target cells, and immune regulation by production of various cytokines. Many previous reports show that the complex NK cell activation process requires de novo gene expression regulated at both transcriptional and post-transcriptional levels. Specialized un-translated regions (UTR) of mRNAs are the main mechanisms of post-transcriptional regulation. Analysis of posttranscriptional regulation is needed to clearly understand NK cell biology and, furthermore, harness the power of NK cells for therapeutic aims. This review summarizes the current understanding of mRNA metabolism during NK cell activation, focusing primarily on post-transcriptional regulation.

• The Journal of Korean Society for School & Community Health Education
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• v.16 no.3
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• pp.51-63
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• 2015

Objectives: This study addressed the relationship among communication skill, job satisfaction, and mental health level. Methods: The participants in this study were 222 public health center staff members at 9 community public health centers located in Seoul city and Gyeonggi province. Descriptive analysis, Pearson's correlation, and multiple regression were used for statistical analysis of the data. Results: The main findings are as follows: First, communication skill and job satisfaction showed a significant positive correlation with mental health level. Secondly, some components of mental health level generally showed positive correlations with communication skill and job satisfaction. Third, multiple regression showed that 22% of the variance in the mental health level was explained. Conclusions: Based on these results of this study, we suggested that specialized programs should be established to help in development of social arbitration for public health center staff.

• Tuberculosis and Respiratory Diseases
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• v.60 no.2
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• pp.142-150
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• 2006

Pulmonary arterial hypertension (PAH) is often difficult to diagnose and challenging to treat. Untreated, it is characterized by a progressive increase in pulmonary vascular resistance leading to right ventricular failure and death. The past decade has seen remarkable improvements in therapy, driven largely by the conduct of randomized controlled trials. Still, the selection of most appropriate therapy is complex, and requires familiarity with the disease process, evidence from treatment trials, complicated drug delivery systems, dosing regimens, side effects, and complications. We tried to provide evidence-based treatment recommendations for physicians involved in the care of these complex patients. Due to the complexity of the diagnostic evaluation required, and the treatment options available, it is strongly recommended that consideration be given to referral of patients with PAH to a specialized center.

• Journal of Agricultural Extension & Community Development
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• v.4 no.1
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• pp.121-146
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• 1997

Sunchon National University Farming Promotion Center is a unique social education institution for the farmers. This study intends to analyze the educational and training programs for future farmer candidates with a expert technology, successors to the rural leaders of Saemaul Movements, expert farmers, the students of farming practice courses in the Department of Agricultural Education, and the citizens participating in the social education courses. It is an urgent problem to recruit the experts in social education, and in specialized and advanced farm management technology. A committee for the betterment of the social education program should be consisted of the social education experts, and alumni of the Farming Promotion Center to share their farming information with one another. In order to achieve the successful goal in the education program of the Farming Promotion Center, the well planned field trips and the supervised farming practices should be secured, and the follow-up management system for the people finishing the courses of the educational programs should be formulated.