• Journal of Engineering Education Research
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• v.10 no.2
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• pp.73-86
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• 2007

The purpose of this study is to suggest directions to improve engineering education and the assessment system of our country. For this object, the present situation of engineering education and assessment system in Korea have been reviewed and next, for those of study, the research papers and publications about the environment of college education are analyzed. Finally, an improved assessment system is suggested. It has already passed out for 6 years since execute the accreditation for engineering education in our country now, but essential point for step in accreditation for engineering education is how the evaluator can make the outcomes of studying. This is not a new terminology that is deformed according to special quality of college of engineering which prefer out-come based of study than process based of study to mean accomplishment in engineering education. The evaluation that estimate program is a skill, but an assessment method is not the meaning of individual student accomplishment also, it is the measure of validity estimation that should be estimate ability of students who complete program by proper authority. However, a new evaluation strategy that assess student outcome by person who consider the objectivity and validity, reliability should be develop for decision making of ABEEK. It is an original, private discussion for assessment strategy about the method for student learning outcomes assessment.

• Journal of Life Science
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• v.25 no.9
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• pp.1043-1050
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• 2015

Glutamate is one of the principle transmitters in the CNS. Ionotropic receptors of glutamate, selectively activated by N-methyl-D-aspartate (NMDA), play an important role in the processes of cell development, learning, memory, and etc. On the other hand, many studies discovered that over-activation of glutamate receptors leads to neurodegeneration and are known to be implicated in major areas of brain pathology. Any sustained effect of a transient NMDA receptor activation is likely to involve signaling to the nucleus and to trigger coordinated changes in gene expression. Classically, a set of immediate-early genes are induced first; some of genes are by themselves transcription factors that control expression of other target genes. This study provides understanding of changes of inducible transcription factors mRNA levels with RT-PCR by inducing over-activation of NMDA receptor with intraperitoneal NMDA injection. The experimental conditions were varied by 1, 5, 25, and 125 g/ of body weight NMDA and measured transcription factors mRNA levels are Egr-1, c-Jun, JunB, and FosB. Based on result obtained, inducible transcription factors mRNA in NMDA injection to mice with 5 g/body weight showed the greatest change. And ITF mRNA showed greatest change 24 hr after injection. The expression level of JunB mRNA was markedly changed. Up to the present days, no study clearly understood how ITF mRNA affected the apoptosis of purkinje cells in the cerebellum. The current study improves the understanding of the mechanism of apoptosis of purkinje cells in the cerebellum.

• Journal of the Korean Society of School Health
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• v.16 no.2
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• pp.45-55
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• 2003

This study was focused on comparing the knowledge, attitudes and experiences in sex and the needs for sex education of nursing students and non-nursing students. The subjects of this study were 403 female students who attended 4 universities in Busan. The data was collected from November 2002 to December, and analyzed by frequency, percentage, mean, standard variance, t-test and Chi-square. The results were as follows: 1. The mean score of sex knowledge of the nursing students was 13.29 and the non-nursing students's was 11.11. There was a difference(p=0.000) between nursing and non-nursing students in sex knowledge. 2. The mean score of sex attitude of nursing and non-nursing students was 25.64, 26.65 respectively. There was no statistical difference. 3. 61.8% of the nursing students and 62.3% of the non-nursing students had experienced a relation with the opposite sex. Kissing experience was 59.9%, 61.8% and masturbation was 9.5%, 9.2% respectively. Sexual intercourse was 5.3%, 11.9% and contraception was 1.9%, 8.2% respectively. Among these experiences, sexual intercourse and contraception experience rate were different(p=0.017, p=0.002 respectively) between nursing and non-nursing students. 4. Of 19 sexual education contents, only 'the dignity of life' showed a difference. That is, more nursing students(92.9%) wanted to know about 'the dignity of life' than non-nursing students(85.7%). Among the respcndent's needs on the sexual education contents, 'Contraception' was rated first and followed by 'Sex psychology of men and women', 'Pregnancy', 'Prevention of sexual crime' and 'Sexually transmitted diseases'. Most of the respcndents(95.8%) wanted sex education introduced in the :first year of university, and presented as a special class. Specifically, 50.0% of the students wanted the education to be more realistic and systemic. With the above results, when university faculties are sexual educating to university students, they have to aware of the difference of target students. And they need to stress more realistic and specific aspect of sexual education learning rather than theoretical teaching.

• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.29 no.7
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• pp.550-559
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• 2018

The effectiveness of deep neural networks (DNNs) for detection and classification of micro-Doppler signals generated by human walking and background noise sources is investigated. Previous research included a complex process for extracting meaningful features that directly affect classifier performance, and this feature extraction is based on experiences and statistical analysis. However, because a DNN gradually reconstructs and generates features through a process of passing layers in a network, the preprocess for feature extraction is not required. Therefore, binary classifiers and multiclass classifiers were designed and analyzed in which multilayer perceptrons (MLPs) and DNNs were applied, and the effectiveness of DNNs for recognizing micro-Doppler signals was demonstrated. Experimental results showed that, in the case of MLPs, the classification accuracies of the binary classifier and the multiclass classifier were 90.3% and 86.1%, respectively, for the test dataset. In the case of DNNs, the classification accuracies of the binary classifier and the multiclass classifier were 97.3% and 96.1%, respectively, for the test dataset.

• Biomolecules & Therapeutics
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• v.15 no.1
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• pp.16-26
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• 2007

Tissue plasminogen activator (tPA) is a serine protease catalyzing the proteolytic conversion of plasminogen into plasmin, which is involved in thrombolysis. During last two decades, the role of tPA in brain physiology and pathology has been extensively investigated. tPA is expressed in brain regions such as cortex, hippocampus, amygdala and cerebellum, and major neural cell types such as neuron, astrocyte, microglia and endothelial cells express tPA in basal status. After strong neural stimulation such as seizure, tPA behaves as an immediate early gene increasing the expression level within an hour. Neural activity and/or postsynaptic stimulation increased the release of tPA from axonal terminal and presumably from dendritic compartment. Neuronal tPA regulates plastic changes in neuronal function and structure mediating key neurologic processes such as visual cortex plasticity, seizure spreading, cerebellar motor learning, long term potentiation and addictive or withdrawal behavior after morphine discontinuance. In addition to these physiological roles, tPA mediates excitotoxicity leading to the neurodegeneration in several pathological conditions including ischemic stroke. Increasing amount of evidence also suggest the role of tPA in neurodegenerative diseases such as Alzheimer's disease and multiple sclerosis even though beneficial effects was also reported in case of Alzheimer's disease based on the observation of tPA-induced degradation of $A{\beta}$ aggregates. Target proteins of tPA action include extracellular matrix protein laminin, proteoglycans and NMDA receptor. In addition, several receptors (or binding partners) for tPA has been reported such as low-density lipoprotein receptor-related protein (LRP) and annexin II, even though intracellular signaling mechanism underlying tPA action is not clear yet. Interestingly, the action of tPA comprises both proteolytic and non-proteolytic mechanism. In case of microglial activation, tPA showed non-proteolytic cytokine-like function. The search for exact target proteins and receptor molecules for tPA along with the identification of the mechanism regulating tPA expression and release in the nervous system will enable us to better understand several key neurological processes like teaming and memory as well as to obtain therapeutic tools against neurodegenerative diseases.

• 대한공업교육학회지
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• v.36 no.2
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• pp.239-256
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• 2011

The purpose of this study is to deduce the effective improvement plans of engineering education system and to provide the base materials by analyzing satisfaction and problems in the perception survey of stakeholders related in engineering education system including Engineering Education Accreditation System. Engineering education system improvement plans from the results of study are as follows. First, government and university should provide more financial support to the college in order to improve education environment such as laboratories and equipment. Second, in order to improve links among engineering education stakeholders, student-professor, student-faculty, and colleges should operate effective mentoring program and consultation plan. Third, according to service quality evaluation, colleges need to give rewards to distinguished faculties for their outstanding work and build up job training about services in order to enhance satisfaction of students and professors, Also, business related to Engineering Education Accreditation System should be simplified and needs to increase the number of workers exclusively responsible for this work. Forth, in order to enhance comprehension of learning outcome and outcome of Engineering Education Accreditation System, it is necessary to improve Engineering education innovation center's status, to establish active systematic promotion system and to operate engineering education evaluation expert committee such as 'Engineering education system evaluation council'. Fifth, because of the stakeholder's shortage of benefits and tiredness accumulation, the issue of effectiveness in engineering education institutions has raised controversy. Thus, engineering education institutions needs to take measure necessary. Moreover, engineering education improvements should be improved by reflecting opinions from professors, faculties and students who are practically planning, operating and participating engineering education programs.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.21 no.7
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• pp.453-461
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• 2020

The purpose of this study was to investigate the mediating effects of young children's playfulness between the children's peer competence and their mothers' play beliefs. For this study, 160 mothers and 160 children aged 4-5 years who were in kindergarten and daycare centers in Area J were selected. The collected data were analyzed based on correlation and mediation using SPSS Statistics. The research results are as follows. First, as a result of analyzing the relationship between the young children's peer competence and playfulness and their mothers' play beliefs, there was a statistically significant positive correlation between a mother's play-support beliefs and their children's peer competence and playfulness. On the other hand, the relationship between a mother's learning-support beliefs and her child's peer competence and playfulness was not significant. There was a significant positive correlation between playfulness and peer competence in the young children. Second, as a result of verifying the mediating effect of the children's playfulness in the relationship between their mothers' play-support belief and the children's peer competence, we found that playfulness has a partial mediating role.

• Korean Journal of Cognitive Science
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• v.23 no.4
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• pp.425-455
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• 2012

Multi-dimensional verbal short-term memory mechanisms are largely divided into the phonological channel and the lexical-semantic channel. The former is called phonological short-term memory and the latter is called semantic short-term memory. Phonological short-term memory is further segmented into the phonological input buffer and the phonological output buffer. In this study, the language performance of each of three patients with similar levels of conduction aphasia was analyzed in terms of multi-dimensional verbal short-term memory. To this end, three patients with conduction aphasia were instructed to perform four different aspects of language tasks that are spontaneous speaking, repetition, spontaneous writing, and dictation in both word and sentence level. Moreover, the patients' phonological memories and semantic short-term memories were evaluated using digit span tests and verbal learning tests. As a result, the three subjects exhibited various types of performances and error responses in the four aspects of language tests, and the short-term memory tests also did not produce identical results. The language performance of three patients with conduction aphasia can be explained according to whether the defects occurred in the semantic short-term memory, phonological input buffer and/or phonological output buffer. In this study, the relations between language and multi-dimensional verbal short-term memory were discussed based on the results of language tests and short-term memory tests in patients with conduction aphasia.

• The Journal of the Korea Contents Association
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• v.9 no.1
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• pp.417-427
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• 2009

This article studies on the identity of Korean Culture and the direction of Korean culture contents. Our Korean society goes on to value-pluralism and cultural diversity. In this point, we need to confirm the identity of our Korean culture. And we meet with the crisis of Humanities. Humanities is the core of our culture. It is the key point to make identity of our Korean culture as cultural universality and to apply it to develop Korean culture contents for the revival of Humanities. The core contents of Korean culture lies in the ancient myth, the thought of Hwarang, Confucianism, Neo-Confucianism, Buddhism, Taoism, the practical thought, thought of Yangmyeong study and the thought of East study and so on. On the basis of these thoughts, the core of Korean culture are humanity, harmony, the spirit of Punglyu, thought of life- esteem, ethics of environment etc. I suggest that we can apply our cultural core ideas those I analyzed above to develop Korean culture contents in the fields of cinema, music, cartoon, animation, game, character, digitalization, cultivation of experience programs of Korean culture etc. In addition, I suggest their commercial application like e-learning and culture contents education.

• The Journal of the Korea Contents Association
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• v.17 no.8
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• pp.263-273
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• 2017

Although this research puts the emphasis on the importance of the personality education, and lacks the understanding of the early childhood educator about the personality education, and essentially the content analysis of the direction of the operation of the personality education hasn't been performed. Therefore through the research study once again we collected the opinion of the early childhood educator about the personality education. As the object of the investigation, we questioned 208 teachers who work in the Daycare Center in the S city, and applied the SPSS 18.0 program. The result is as the following. First, there was a lot of concern in the understanding of the early childhood educator about the personality education, and that it was in need. The reason for emphasizing the personality education appears to be the "Individual Egoism", and the "Parental Value" as the factor of influence, and "Whole People Human Development and Health Promotion" as a factor of helping, and "Courage" as the inner information of the information of the personality education, and "Manner" as the outer information. Secondly, more than the majority was carrying out the personality education in the real state of the early childhood educator on the personality education and it happens to be that the instructional material is the "Material related to the personality education", "Conversation" as the teaching learning method, "Once per week" as number of times, "Within 30 minutes" as lead time, "Teacher in Charge" as the host, and "Uncooperative parents" as the difficulty. Lastly the accurate time of demanding the early childhood educator about the personality education happens to be from "Infancy", and the teaching method is "Teaching by making a connection with the family", and that "Leading by example of the teacher" is the factor of consideration.