가상교육운영시스템에서 요구되는 학습자 지원 기능의 중요도 조사

강명희,이혜경 한국교육정보미디어학회 1999 교육정보미디어연구 Vol.5 No.2

효과적인 가상교육이 이루어지려면 학습자, 교수자, 운영자를 원활히 지원해 주는 가상교육운영시스템이 요구된다. 본 연구에서는 이 중 학습자 지원 기능에만 초점을 맞추어 가상교육에서 중요하게 지원하여야할 학습자 지원 기능과 학습자의 소속과 네트웍 경험에 따라 달리 지원하여야 할 기능을 조사하였다. 이를 위한 연구문제는 세가지로 설정하였다. 첫째, 가상교육운영시스템의 학습자 지원 기능들 중 학습자가 중요하다고 인식하는 기능에는 어떠한 것인가? 둘째, 학습자의 소속(대학, 기업)에 따라 학습자 지원 기능에 대한 중요도 인식에는 차이가 있는가? 셋째, 학습자의 네트웍 학습 경험에 따라 학습자 지원 기능에 대한 중요도 인식에는 차이가 있는가? 가상교육에 참여한 경험이 있는 231명의 학습자를 대상으로 설문조사를 한 결과 효과적 가상교육을 위해 우선적으로 지원되어야할 40 가지의 학습자 지원 기능이 규명되었고, 중요도 인식은 학습자의 소속이나 네트웍 경험에 따라 다소 차이가 있는 것으로 나타났다. The 21st century has been predicted to new paradigm different from the 20st century and has developed. That is, as our society changed to an information society from an agrarian society and industrial society, it caused shifts in all social systems such as family, business and education. Of the social systems, the educational system has pointed to open education, learner-centered education, acquisition of ability to be adapted for an information society and learning environments to utlize new technology. Especially, learner-centered virtual education through new technology is the strongest means for paradigm shifts of education. In the learner-centered virtual education, the learner's role is to participate in learning activities positively such as searching for useful information from ill-structured information sources and communicating with other learners voluntarily. For maximizing these learner's roles, the virtual education system is necessary to support the learner's activities. That is, the virtual education system should offer an environment to meet learning material easily and use methods for interaction between the teacher and peer-learner. In Korea recently, the virtual university which is a plan for improving the virtual education system has been legally confirmed. The discussion and development about virtual education system is necessary to maximize learner's activity. The following questions will be addressed: 1. What are the important learner support functions of the virtual education system? 2. Is there a difference between the learner's and the company employee 'ㄴ perception about learner support functions of the virtual education system? 3. Is there a difference between learners experienced network learning once and learners experienced network learning more than twice importance perception about learner support function of virtual education system? To examine these questions, 231 learners experienced in network learning more than once at least were selected. And the 231 learners responded to the questionnaire to rate the importance of each learner support function. Outlined below is the procedure that was followed in conducting this study. First, after making the questionnaire based on the learner support function investigated by the researcher, learners responded to the questionnaire. Second, to examine the importance of the learner support functions, statistical methods such as descriptive statistics and two independent samples t-test were used. The findings of the research are follows : 1. What are the important learner support functions on the virtual education system? of the 78 learner support functions, 40 functions were perceived to be critical functions by learners. And in the 6 areas, learning reference area recorded the highest mean score (M=3.94, SD=.9). 2. Is there a difference between a learner's and a company employee's importance perception about learner support function of the virtual education system? Of the 40 learner support functions perceived to be critical, there is a significant difference in the 27 functions such as introduction function for understanding the subject's structure and outline(t = -2.571, p<.05), self-test function to offer the result immediately(t = -2.451, p<.05), bulletin boards function to announce new homework and tests(t = 5.786, p<.05), discussion function(t = 6.217, p<.05), E-mail function connect the peer-learner, teacher and administrator(t = 4.869, p<.05), modification function of learner's information(name, ID, introduction, etc.) (t = 6.504, p<.05), etc. 3. Is there a difference between the learners one experience with network learning and learners experience with network learning more than twice importance perception about learner support function of virtual education system? Of the 40 learner support functions perceived to be critical, there is a significant difference is 6 functions such as connecting function between schedule calendar and learning contents(t = 2.732, p<.05), function of submitting report based on file(t = 3.042, p<.05), search function for discussion contents(t = -2.572, p<.05), E-mail function to be connected between learner and administrator individually(t = 2.174, p<.05), modification function of password(t = 2.740, p<.05), set up function whether open learner's information or not(t = 2.033, p<.05). From the above results, this study proposes the following : First, according to social position, the learner support function has to be partial in embodying the virtual education system. Second, the learner support function considered the degree of the learner's network learning experience has to be applied to developing and managing the virtual education system. Third, Follow-up research should identify support functions for teacher and administrator.

일부 흡연 대학생의 지각된 스트레스와 흡연실태에 대한 상관관계 연구

강초록,권시내,권혜림,박수경,송인혜,오해인,이미지,한승아,황선아,김수지 이화여자대학교 간호과학대학 2003 이화간호학회지 Vol.- No.37

In spite of the seriousness of smoking harm has been developed these days. the increase of national smoking rate and that the people in the twenties are especially leading the rise of national smoking rate is an important issue of national health. Smoking of the university students can occur health problem and cause loss of manpower and expenses in their social activity period. So then the actual state for prevention of smoking and development of a program to prohibit smoking has to be seized urgently and starting with the study of the realities of university students, the effort to find a related fluent of smoking has to be studied. Related to this, the purpose of this study is to seize the general characteristics of smoking university students and to find out the relationship between perceived stress and smoking status among smoking university students. In addition, by collating the relationship between perceived stress and smoking status among smoking university students we have the purpose to furnish the basal data of stress care, the best way to cope with stress through group training and the plan for nursing implementation to decrease the smoking rate. For this study, a survey was conducted for 204 smoking university students of 13 universities in Seoul from 9th of May to 16th of May, 2003. The collected data was analyzed by t-test, Pearson Correlation and ANOVA in the statistical packages SPSS/PC. Major findings of this study are as follows; 1. Of the 204 respondents 85.4% of them were male and 14.6% of them were female. The average age of the sample was 23.19 years old and 41.8% of them were in senior, 21.4% in junior, 16.9% in sophomore, 19.9% in freshman grade. The major motivation to start smoking was 'because of curiosity'(33.8%) and the first smoking experience was at 'senior high school' (41.9%) and at 'college' (41.9%). 2 The highest scored stress factor of smoking university students were stresses about school work. 3. 72.7% had experience to quit smoking at least one or more times. Most of the reason to keep on smoking was 'short will to quit'(51.0%) and the smoking place was usually at 'school' (41.4%). Most respondents for the number ofsmoking friends were '5 people and above' (73.2%). 4. There was a negative relationship between the general characteristics and the entire perceived stress, however, there was a positive relationship between the general characteristics and the perceived stress in 4 categories which is 'sex distinction', 'major of study', 'residence form' and' inmate'. 5. There was a negative relationship between the general characteristics and the entire smoking status, however, there was a positive relationship between the general characteristics and the smoking status in 2 categories which is 'presence of hobby' and 'number of smoking friends'. 6. There was a negative relationship between the perceived stress and the smoking status. Through this study we have seized the relationship between the general characteristics, perceived stress and the smoking status of smoking university students. There was a positive relationship between some of the general characteristics with the perceived stress and the smoking status of smoking university students. Also there was a negative relationship between the perceived stress and the smoking status.

중합효소연쇄반응을 이용한 Helicobacter pylori검출

최태열,박경남,강정옥,서일혜 대한감염학회 1997 감염 Vol.29 No.5

배 경 : H.pylori는 위염, 위궤양 재발과 밀접한 관계를 갖고 있기 때문에 검사실적 진단은 정확하여야 한다. H. pylori의 세균배양이 가장 바람직하지만 시설이나 노력면에서 많은 어려움이 있다. 이에 저자는 H. pylori의 세균배양과 더불어 PCR 을 실시하여 PCR의 유용성을 판단코져 다음과 같은 실험을 실시 하였다. 방 법 : 위장 장애를 호소하여 위내시경과 생검을 실시한 247명의 병리조직소견에 따라 정상대조군(57명), 만성위염(131명), 활동성만성위염(19명), 만성궤양(8명), 위암(32명) 으로 분류하였다. 세균배양은 brain heart infusion egg yolk agar선택배지를 사용하였고 PCR은 usease A gene sequence 를 증폭할수 있는 primer 2쌍을 선택하여 nested PCR 을 실시하였다. 결 과 : 세균배양에 의한 H. pylori의 검출율은 100명(40%) 였으며, PCR 에 의한 H.pylori의 검출율은 179명(72%) 으로 PCR 법이 세균배양법보다 검출율이 높았다(P:<0.05, Chi-square test, SPSS, ver7.0, USA). 세균배양과 PCR 모두 음성이 68명, 모두양성이 100명, 세균배양음성 PCR양성이 79명이였으며 PCR의 예민도는 0.1pg DNA(1 bacterial cell)였다. 일반세균을 이용한 특이도 검사에서 양성인 예는 없었다. 결 론 : 상기 결과로 미루어 보아 위생검조직에서 H.pylori의 검출은 연구자들이 사용한 PCR 법이 세균배양법보다 신속 정확하였다. Background : Helicobacter pyloir has been implicated in the pathogenesis of active chronic gastritis and peptic ulcer disease in man. Thus, diagnosis and treatment of H. pylori infection are now of growing importance in ucle management. A variety of noninvasive and invasive methods have been described for the detection of H. pylori, but all of these techniques have disadvantages such as time consuming or insensitivity. So we describe the polymerase chain reaction(PCR) assay for the sensitive and specific detection of H. pylori. Methods : Gastric biopsy specimens were obtained from 147 patients undergoing endoscopic examinations at Hayang University Hospital. One half of the specimen was processed for routine culture and the other half for PCR. Bacterial genomic DNA from gastric biopsies are extracted by Instagene. Two sets of primer pairs derived from the nucleotide sequence of the urease A gene of H. pylori were used. Result: H. pylori was cultured in 100(40%) cases and PCR assay deteted 179(72%) cases (P<0.05, Chi-square test, SPSS ver. 7.0, USA). Culture and PCR-positive cases totalled 100, and there were 68 cases negative by both mothods. There were 79 culture-negative and PCR-positive cases, but non that were culture-positive and PCR-negative. The assay was sensitive for as little as 0.1 pg of DNA (1 bacterial cell). The specificity of detection was confirmed by ensuring that the primers did not amplify DNA extract from other bacteria. Conclusion: The PCR is rapid, accurate, and sensitive method for the detection of H. pylori.

산국 (Chrysanthemum boreale) 휘발성 추출액 및 EDTA가 미생물 및 인체 치은 섬유아세포에 미치는 영향

차정단,김태영,우원홍,전병훈,김해경,유용욱,김강주,길봉섭 원광대학교 생체재료·매식연구소 2000 원광생체재료·매식 Vol.9 No.1

Chrysanthemum boreale (C. boreale) has been used for the treatment of furuncles, carbuncles, sores, conjunctivitis, headache, vertigo and swollen throats as a folk medicine in Korea, but there is little report about experiment evidence of antimicrobial activity. To investigate the antifungal and antibacterial activity of Chrysanthemum boreale(C. boreale) volatile substance and EDTA, the growth inhibition against Aspergillus nidulans (A. nidulans), Fusarium oxysporum (F. oxysporum), Alternaria mali(Al. mali), Candida albicans (C. albicans), staphylococcus aureus (S. aureus), Streptococcus pyogenes(S. pyogenes), streptococcus mutans (S. mutans), Escherichia coli(E. coli), Helicobacter pylori (H. pylori) and Porphyromonas gingivalis (P. gingivalis) was monitored by agar dilution and broth microdilution method. The antifungal effect of C. boreale on A. nidulans, F. oxysporum, Al. mali and C. albicans was shown at the concentration of 0.04%. The antibaterial effect of C. boreale on S. aureus, S. pyogenes, S. mutans and H. pylori was shown at the concentration of 0.04%. However, the growth was inhibited at the concentration of 0.04% irrespective of the presence of EDTA 0.125% was much higher than higher than that of several concentration of volatile substance. The minimum inhibitory concentrations of volatile substance were 0.16% against S. aureus, 0.04% against S. pyogenes, 0.02% against S. mutans, 0.40% against E. coli, and 0.18% against C. albicans. The growth of human gingival fibroblasts was not affected by C. boreale volatile substances at the concentration of 0.04%. These results indicate that volatile substance from C. boreale may have biologically toxic activities to the microorganisms.

간접형광항체법을 이용한 닭 로타바이러스의 혈청역가 조사

김혜경 ( Hea Kyung Kim ),곽학구 ( Hak Koo Kwak ),박경재 ( Kyung Jae Park ),안재문 ( Jae Moon Ahn ),강신영 ( Shien Young Kang ) 한국가축위생학회 1999 韓國家畜衛生學會誌 Vol.22 No.4

A total of 420 chicken sera from various regions were tested for the presence of antibodies to avian rotavirus using indirect immunofluorescence assay (IFA). In broiler farms, rotavirus antibodies were detected from 20 farms among 30 farms tested and the positive rates were above 50% in 9 farms. In parent stock farms, rotavirus antibodies were detected from 5 farms among 14 farms tested. From sera collected in 7 layer farms rotavirus antibodies were not detected.

증례 : 감염 ; HIV 감염 환자에서 발생한 Ramsay Hunt 증후군 1예

강은경 ( Eun Kyung Kang ),김지연 ( Ji Yeon Kim ),송경환 ( Kyung Hwan Song ),문송미 ( Song Mi Moon ),고광필 ( Kwang Pil Ko ),서일혜 ( Yiel Hea Seo ),박윤수 ( Yoon Soo Park ) 대한내과학회 2016 대한내과학회지 Vol.90 No.2

RHS는 안면신경 무릎신경절에 수두대상포진바이러스(varicellar zoster virus)가 감염되어 있다가 얼굴과 귀에 분지되어 있는 감각 분지로 재활성화되어 발생한다. 전형적인 3가지 증상인 얼굴마비, 귀 통증, 외이도와 귓바퀴의 소수포성 발진이 나타나면 RHS라고 진단한다. 본 증례는 사람면역결핍바이러스 환자에서 RHS 진단과 치료의 국내 첫 보고이다. 40세 남자가 우측 귀 통증과 귀가 멍멍한 느낌을 주소로 내원하였다. 입원 직후 우측 얼굴의 말초 신경마비, 이루, 두통, 혀의 우측 운동 장애가 나타났으며 우측 외이도와 귓바퀴에 소수포성 발진이 관찰되었다. 입원 10일째 청력저하를 호소하였으며 고막 천공이 관찰되었다. 말초혈액 검사에서 사람면역결핍바이러스(HIV) 항체가 양성으로 도출되었고 확진 검사 양성이 확인되었다. CD4 T cell은 281/μL였다. 치료는 valacyclovir와 steroid를 투여하고 highly active antiretroviral therapy를 시행하였으며 안면마비를 포함한 증상은 치료 후호전되었으나 청력저하는 호전이 없었다. Ramsay Hunt syndrome is caused by reactivation of the varicella zoster virus in the geniculate ganglion of the sensory branch in the face and ears. It is characterized by peripheral facial palsy, ear pain, and vesicles in the auditory canal and auricle. We report on a first case of Ramsay Hunt syndrome in a patient with human immunodeficiency virus in Korea. The patient, a 40-year-old male, first presented with otalgia and ear fullness. On admission, he had right facial palsy of the peripheral type, otorrhea, headache, limited tongue movement, and right auricle vesicular eruptions. He had positive human immunodeficiency virus antibody and Western blot tests. His CD4 T cell count was 281/μL. The patient was treated with valacyclovir and steroid with highly active antiretroviral therapy. His symptoms and facial palsy improved with treatment. (Korean J Med 2016;90:169-172)

[PF-0047] Genomic Selection with Fixed-effect Markers Improves the Prediction Accuracy for Capsaicinoid Contents in Capsicum annuum

Geon Woo Kim(Geon Woo Kim ),Ju-Pyo Hong(Ju-Pyo Hong ),Hea-Young Lee(Hea-Young Lee ),Jin-Kyung Kwon(Jin-Kyung Kwon ),Dong-Am Kim(Dong-Am Kim ),Byoung-Cheorl Kang(Byoung-Cheorl Kang ) 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-

Genetic Diversity and Construction of Core Collection in Capsicum

Hea-Young Lee,Jin-Kyung Kwon,Hee-Jin Jeong,Na Young Ro,Byoung-Cheorl Kang 한국원예학회 2013 한국원예학회 학술발표요지 Vol.2013 No.5

사람 백혈구 및 위 조직중의 8-Hydroxy-2'-Deoxyguanosine 측정에 관한 연구

Kang Ho Il,Eom Mi Ok,Park Mi Sun,Ryeom Tai Kyung,Jee Seung Wan,Jeon Hea Myung,Kim Ok Hee 한국환경성돌연변이발암원학회 2005 한국환경성돌연변이·발암원학회지 Vol.25 No.1

In the present study, we have measured 8-hydroxy-2'-deoxyguanosine in DNA of stomach cancers, adjacent stomach cancer tissues, normal stomach tissues and peripheral blood leukocytes of the same stomach cancer patients (n = 48) to investigate their etiological association with gastric cancer and possibility whether peripheral blood leukocytes can use surrogate marker for early stomach cancer diagnosis by HPLC/ECD system. In normal stomach tissues, we found that 8-hydroxy-2'-deoxyguanosine levels in tissues infected with Helicobacter pylori were 1.4 fold higher than those in tissues without infected with Helicobacter pylori. However, in adjacent stomach cancer tissues, we found that 8-hydroxy-2'-deoxyguanosine levels in tissues infected with Helicobacter pylori were 1.5 fold lower than those in tissues without infected with Helicobacter pylori. In stomach cancer tissues, 8-hydroxy-2'-deoxyguanosine levels in tissues infected with Helicobacter pylori were not significantly different from those in tissues without infected with Helicobacter pylori. In Helicobacter pylori-negative specimens, 8­hydroxy-2'-deoxyguanosine levels of adjacent stomach cancer tissues were found to be significantly higher than those of normal stomach and cancer tissues. The 8-hydroxy-2'-deoxyguanosine levels of female were 1.7 fold higher than those of male in peripheral blood leukocytes of the same stomach cancer patients. The 8-hydroxy-2'­deoxyguanosine levels in Helicobacter pylori-negative specimens among adjacent stomach cancer tissues were found to be reversely correlated with those in peripheral blood leukocytes, suggesting that 8-hydroxy-2'-deox­yguanosine in peripheral blood leukocytes may not use as surrogate marker for the early diagnosis of human stomach cancer.

Effects of 1,8-cineole in chronic exposure of nicotine-induced hypertension rats

Hea Kyung Moon,Hui Su Lee,Purum Kang,Geun Hee Seol 성인간호학회 2013 성인간호학회 학술대회 Vol.2013 No.5