• Animal cells and systems
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• v.9 no.2
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• pp.47-55
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• 2005

Avian vocalization has been main topics in studying animal communication. The structure and usage as well as development and function of vocalization vary enormously among species and even among populations, and thus we reviewed the general patterns of song learning and the consequences of song communication in birds at the behavioural level: first, we compared the different learning phenomena between non-songbird and songbird, and we investigated the learning process of songbird both in the field and in the lab, which are needed to fully understand vocal communication. Second, we discussed a recent trend of sexual selection hypothesis explaining the structural and functional diversity of song in songbirds with repertoire and presented how the repertoire is actually used between neighbours based on individual recognition.

• The Journal of Korean Association of Computer Education
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• v.10 no.1
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• pp.9-19
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• 2007

Recently, since the importance of the information communication ethics education for primary and secondary schools has being highlighted, researches and new instructional materials have been published actively. On the other hand, with the advance of e-learning, the various kinds of educational methods which consider the characteristics and the requirement of students are being developed. The educational method for Information Communication Ethics education is no exception. If the practical method for Information Communication Ethics education which considers students' requirements is developed, then a better educational effect can be acquired. In this paper, we decompose instructional design features into 4 components such as goal, model, contents, and media in order to design a better instruction for Information Communication Ethics education. And then, we analyze the relative importance of the instructional design components by using Conjoint method based on our questionnaire result. Finally, we propose an instructional design method for Information Communication Ethics as well as examine the differences among the instructional design components.

• The Journal of Korean Institute for Practical Engineering Education
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• v.3 no.1
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• pp.158-166
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• 2011

The purpose of this research is in developing a communication education program that will increase the communication abilities of engineering students and validating the effectiveness of this education program. To test for the effectiveness of the education program, pre and post test was conducted on students from college of science and technology in K University located in Cheonan. The experimental groups consisted of 37 students. The control group consisted of 34 students. The communication program comprised of eight modules and each module consisted of 100 minute session conducted once a week for total of eight weeks. Results showed that pre-test showed no difference between control and experimental groups. The results for the pre and post tests on the control group showed no significant difference. The results for pre and post tests in the experimental group showed significant difference. The results indicate that communication training program is effective in raising the communication abilities in engineering students.

• Journal of the Semiconductor & Display Technology
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• v.14 no.3
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• pp.51-55
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• 2015

We have fabricated silver nanowire (AgNW) films as a stretchable and transparent electrode on polydimethylsiloxane (PDMS) substrates using a spray coater. Inherently, they show poor surface roughness and stretchability. To tackle it, we have employed a conductive polymer, poly (3,4-ethylenedioxythiophene) : Poly(styrene sulfonate) (PEDOT : PSS). PEDTO : PSS solution is mixed with AgNWs or spin-coated on the AgNW film. Compared with AgNW film only, PEDOT : PSS film only, and polymer-mixed AgNW films, the AgNW/polymer bilayer films exhibit much better surface roughness and stretchability. It is found that spray-coating of AgNWs on uncured PDMS and spin-coating of PEDOT : PSS solution on the AgNW films enhance the surface roughness of electrodes. Such a bilayer structure also provides a stable resistance under tensile strain due to the fact that each layer acts as a detour route for carriers. With this structure, we have obtained the peak-to-peak roughness ($R_{pv}$) as low as 76.8nm and a moderate increase of sheet resistance (from $10{\Omega}/{\Box}$ under 0% strain to $30{\Omega}/{\Box}$ under 40% strain).

• 한국정보교육학회:학술대회논문집
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• 2010.08a
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• pp.101-109
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• 2010

Rapidly increasing Internet use has brought beneficial developments in many aspects, and it also stimulates elementary students' curiosity and is becoming an important part of entertainment. On the other hand, it is giving rise to some negative results such as violence and delinquent conduct in cyberspace. This study is to find the effects and problems of Information and Communication Ethics education before and after it is carried out by analysing the curriculum of Information texbooks, and to search for new teaching methods for Information and Communication Ethics education.

• Journal of the Semiconductor & Display Technology
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• v.10 no.1
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• pp.51-55
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• 2011

The surface passivation is one of the important methods that can improve the efficiency of solar cells and can be classified into two methods: wet-chemical passivation and film passivation. In this paper, chemical HF treatment were employed for the passivation of n-type silicon wafers and their effects were studied. To investigate film passivation effects, the silicon nitride films were also deposited by PECVD (plasma-enhanced chemical vapor deposition) on n-type silicon wafers treated with chemical HF. The minority carrier lifetime measurements were used for evaluation of the passivation characteristics in the all experiments steps. We confirmed that the minority carrier lifetime was improved with chemical HF treatment due to passivation effects by H-termination.

• Korean journal of medical education
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• v.30 no.4
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• pp.317-326
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• 2018

Purpose: The study examines changes in students' self-assessment of their general communication (GC) and medical communication (MC) competencies, as well as perceptions of MC concepts. Methods: Participants included 108 second year medical students enrolled at a Korean medical school studying an MC curriculum. It was divided into three sections, and participants responded to questionnaires before and after completing each section. To assess perceived GC and MC competency, items based on a 7-point Likert scale were employed; a single open-ended item was used to examine students' perceptions of MC. Statistical analysis was conducted to gauge GC and MC competency, whereas semantic network analysis was used to investigate students' perceptions of MC. Results: Students perceived their GC competency to be higher than MC. Perceived MC competency differed significantly across the three sections, whereas no differences were found for GC. There were no statistically significant differences after completing the curriculum's second and third sections; however, the vocabulary students used to describe MC concepts became more scholarly and professional. In the semantic networks, the link structure between MC-related words decreased in linearity and looseness, becoming more complex and clustered. The words 'information' and 'transfer' proved integral to students' perceptions; likewise, 'empathy' and 'communication' became closely connected in a single community from two independent communities. Conclusion: This study differed from prior research by conducting an in-depth analysis of changes in students' perceptions of MC, and its findings can be used to guide curriculum development.

• Korean Journal of Health Education and Promotion
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• v.3 no.1
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• pp.83-98
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• 2001

Although periodic health examination has been one of the most common practices of preventive medicine, its effect on modification of risk behavior has been seldom assessed. Thus, this study attempted to demonstrate the influence of a health examination on modification of cardiovascular disease related health risk behaviors such as smoking, physical inactivity, and obesity. Data of 893 adults were derived from two types of a popular and highly acclaimed health examination program. With a conceptual model constructed using Persuasive Communication variables, McNemar tests examined Source-Outcome association, hypothesizing that different health examination programs would yield different levels of behavior change in smoking, physical inactivity, and obesity. No significant behavior change was found in any of the two health examination programs. Instead, previously established Receiver-Outcome relationship was reconfirmed by logistic regression modeling where gender was the most prominent predictor of all three behaviors. Men were more likely to be current smokers (OR=0.029), exercisers (OR=2.629), and obese (OR=0.237). The importance of followups after health examination is highly stressed as well as that of gender-specific health education strategies. This study recommends applying the social-ecological approaches in health examination, which emphasizes the support and collaboration at individual, family, organizations, community, and policy level to improve health. Long term and qualitative evaluation of health examination may provide more foundation for increasing the effectiveness of health education and communication in health examinations.

• Journal of The Korean Association of Information Education
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• v.14 no.3
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• pp.329-339
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• 2010

This study has been pointed out that Information Communication Ethics Education has been mentioned only about a cognitive factor. Then the purpose of this study is verify the effects through the Instructional design of Information Communication Ethics that was compensate the problem. To achieve this, it was included all the cognitive, emotional and active factor of Integrated Character by Thomas Lickona. It has been modified that Information Communication Ethics Test of Lee Chae Young(2009) to be included all the factors of Integrated Character to verify the designed instruction. It has been designed that each steps included the component of Integrated Character using Gerlach & Ely systematic instruction model then, the designed instruction has been applied to the secondary school and verified the effectiveness. As a result, it has been proved that Experimental group is more effective than Control group.

• Journal of the Korean Home Economics Association
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• v.33 no.6
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• pp.1-10
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• 1995

The purposes of this study are to investigate the parents' communication behavior with their teen-aged child and the effects of the demographic and socio variables on it concerning with the parent education. A sample of 599 teen-aged children was obtained from the elementary, middle and high schools in the city of Seoul. Mean, t-test and F-test were used for data analysis. The major findings can be summurized as follows : The scores of parents' communication behavior are neither high nor low, namely, are not especially desirable. And there are differences in communication behavior by mother's age and schooling, differences in mother's communication behavior by father's age, schooling and occupation, differences in mother's communication behavior by child' sex and age. According to the above findings, it is necessary for all parents with teen-aged children to have the parental communication education, particularly for father with the older child.