• 한국도서관정보학회지
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• 제46권4호
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• pp.451-470
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• 2015

이 연구의 목적은 OCLC WorldCat의 실험적 지원도구인 WorldCat Identities Network를 검토하고, 그 안에 수록된 한국 관련 개인 아이덴티티의 문제점에 대한 개선방안을 제안하는 것이다. WorldCat Identities Network에 포함된 영어 및 한국어로 표기된 개인 아이덴티티 10개와 주제 아이덴티티 10개를 사례로 선택하여 관련 아이덴티티 및 관련 저작의 WorldCat 검색 결과를 분석하였다. WorldCat 검색 시 디폴트 검색식 구성의 문제점 및 검색 대상 아이덴티티의 이름과 연관된 연도 혹은 완전명 포함에 따른 검색 오류의 문제점을 확인하였다.

• 성인간호학회지
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• 제19권1호
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• pp.144-154
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• 2007

Purpose: This descriptive study was conducted to identify the use of complementary and alternative therapies, and the perception and attitudes toward CAT in Korean adults. Methods: The 1,010 study subjects were recruited from ten regions in South Korea. Data were collected from July to September, 2004. Results: The 43.2% of the sample(n=436) had an experience of using CAT. The subjects using CAT was more likely to have high score in the CAT perception compared to the subjects with no experience of CAT(p=.001). The primary source of information about CAT was mass media(59.7%). The 52.4% of the sample answered that CAT was supplementary and the 27.7% answered CAT was applicable to chronic pain or musculoskeletal disorders. Subjects(34.8%) pointed out that the greatest problem was no scientific informant in the use of CAT. The primary reason of using CAT was to maintain their health or to prevent disease(44.0%), and the 59.0% of the subjects responded that CAT was effective. Majority of subjects were satisfied with CAT(63.3%) and experienced no side effects of CAT(90.6%). Conclusion: This study suggests that professional counseling and education for CAT is needed for Korean public as well as the research approach to test the effects of CAT.

• Molecules and Cells
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• 제20권2호
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• pp.247-255
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• 2005

Three different catalase cDNA clones (CaCat1, CaCat2, and CaCat3) were isolated from hot pepper (Capsicum annuum L.), and their expression patterns were analyzed at the levels of mRNA and enzyme activity. Northern hybridization showed that the three catalase genes were differentially expressed in various organs, and that expression of CaCat1 and CaCat2 was regulated differently by the circadian rhythm. In situ hybridization revealed different spatial distributions of CaCat1 and CaCat2 transcripts in leaf and stem. In response to wounding and paraquat treatment, CaCat1 mRNA increased at 4-12 h in both paraquat-treated and systemic leaves. In contrast, wounding had no significant effect on expression of the catalase genes. The increase of catalase activity in the paraquat-treated and systemic leaves paralleled that of CaCat1 mRNA, but did not match that of CaCat1 mRNA in paraquat-treated stems. Our results suggest that CaCat1 may play a role in responses to environmental stresses.

• 기본간호학회지
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• 제13권3호
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• pp.457-466
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• 2006

Purpose: This study was done to investigate oncology nurses' perception, attitude, knowledge and practice of CAT and to describe nurses' needs for education on CAT Method: A cross-sectional descriptive study was conducted. A total of 270 oncology nurses working at four medical centers in Seoul and Kyungki participated in this study. They completed the questionnaire between December 2005 and February 2006. Results: Oncology nurses perceived CAT as possible nursing interventions, but felt that there was no conclusive evidence on effectiveness/safety. Of the participants 44.4% have used CAT for themselves, and 73.9% of them were satisfied after using CAT. Two biggest reasons for CAT use were symptom control and emotional support. However, 80.8% of the participants had not had any training related to CAT Both nurses who have used CAT and those who have been trained to practice CAT represented a more positive perception toward CAT (p=.000). The biggest perceived obstacles to the practice of CAT were concerns about side effects (71.2%) and lack of knowledge and skill (69.6%). The most favorable CAT modalities in both practice and training were mind-body medicine. Conclusion: Overall oncology nurses' perception toward CAT was encouraging. However a high number of the nurses reported lack of knowledge and skill in CAT Education and training strategy for CAT need to be developed.

• 기본간호학회지
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• 제8권3호
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• pp.314-323
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• 2001

Purpose : Complementary and alternative therapies(CAT) are defined as those treatments and healthcare practices not taught widely in medical schools, not generally used in hospitals, and not usually reimbursed by health care insurance. Recently, CAT have become increasingly popular with health care consumers and health care professionals. This study investigated nurses' perceptions and experiences with CAT. Method: 124 nurses who were working in university hospitals in Seoul and Inchon were randomly selected as participants for this study. They answered open and closed questionnaires on their Perceptions and experiences with CAT. Results: Most of the subjects recognized the existence of CAT (86.3%), and expected a treatment effect from CAT when it is combined with conventional therapy (84.7%). Nurses accepted CAT positively as complement for conventional therapy and useful modalities of psychological support when its effects have been proven scientifically. Forty nurses (32.3%) had learned CAT including soojichim, aroma therapy, relaxation, meditation, music therapy, massage, and acupressure. Eight nurses (6.5%) used CAT with patients including soojichim, hand massage, relaxation, and music therapy. Conclusion: In spite of the nurses' positive perceptions of CAT, the nurses' professional experiences were quite limited. Nurses need authorized training programs and continuing education opportunities in CAT. This would increase their ability to use CAT. But to improve scientific knowledge more evidence based research is.

• 미생물학회지
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• 제30권4호
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• pp.291-298
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• 1992

비변성 폴리아크릴 아미드 겔에서 Streptomyces coelicolor 의 catalase 활성 염색을 실시하여 여러개의 catalase 활성 띠를 관찰하였으며, 그 유형이 성장기에 따라 달라짐을 알았다. 포자와 정체 성장기에는 정체 성장기에만 특이적인Cat1(760kD) 이 관찰되었고, Cat2(300kD) 를 제외한 모든 활성 띠들이 나타났다. 중기 대수 성장기에는 Cat2 와 Cat 3-2, Cat3-2(140kD) 등 2개의 catalase 띠가 나타나며, 후기 대수 성장기에는 Cat3-1(170 kD), Cat3-2, Cat3-3(130kD). Cat4(70kD)등의 활성 띠가 나타났다. NTG 처리로 돌연변이화된 S. coelicolor 의 포자를 Bennet 평판 배지네서 배양한 후 과산화수소 거품 test 를 실시하여, 약 5000 여개의 콜로니 중 거품형성 속도나 양이 감소한 콜로니를 12개 얻었다. 야생형에 견주어 대부분 catalase 활성이 감소하였으며, 대수 성장기와 정체 성장기에서 모두 감소하였다. 거품형헝을 하지 않는 모든 돌연변이에서 Cat3-2 띠의 강도라 현저히 약해저 있음으로 보아 Cat3-2가 주된 catalase 인 것으로 추정된다. 대수 성장기에서 수확한 S. coelicolor 세포 추출액에서 Sepharose CL-4B, DEAE Sepharose CL-6B, Phenyl Sepharose CL-4B, Hydroxylapatite 크로마토그래피등 4단계의 크로마토그래피를 수행하여 Cat3-2 를 정제하였다. 비변성 폴리아크릴마드 겔 전기 영동을 수행한 결과 Cat3-2 는 67 kD 의 동일한 subunit 을 2개 가지고 있는 효소로 추정된다.

• 한국양식학회지
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• 제10권4호
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• pp.409-415
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• 1997

The carp $\beta$-actin regulatory sequences and RSV/LTR promoter were tested whether they are functinal to express linked structure gene (chloramphenicol acetyltransferas, CAT) in olive flounder (Paralichthys olivaceus) by determining the patterns of gene expression following intramuscular in vivo direct injection. The injection experiments with various concentrations of both pRSVCAT and pFV4CAT clearly revealed the effectiveness of DNA dosage on expression of CAT. The increase of CAT activity was linear in both plasmids, and maximal CAT activity was obtained with 100 ug of pFV4CAT injection. The amounts of CAT expression with pFV4CAT-injected fist were higher than those with pRSVCAT-injected fish. CAT activity was readily detectable as early as one day after injection, slightly increased at day 2, and declined over time. Most amount of DNA intramuscularly injected into olive flounder muscles persisted extrachromosomally without showing any integrated or replicated form in vivo.

• 반도체디스플레이기술학회지
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• 제20권2호
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• pp.131-136
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• 2021

EtherCAT is an Ethernet-based fieldbus system standardized in IEC 61158 and SEMI, and widely used in the fields of factory automation, semiconductor equipment and robotics. In this paper, a real-time EtherCAT master is implemented on Linux operating systems and its performances are evaluated. To enhance the real-time capability of mainline Linux kernel, Xenomai is applied as a real-time framework and an open source EtherCAT master stack, Simple Open EtherCAT Master (SOEM), is installed on it. Unlike other studies, the real-time performance of the EtherCAT master is evaluated at the output of the network interface card, so that the evaluation results include all possible effects from the EtherCAT master system. The implemented EtherCAT master can send and receive packets up to 20KHz control frequency with low jitter, even in stressed condition.

• 반도체디스플레이기술학회지
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• 제21권3호
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• pp.26-32
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• 2022

EtherCAT is an Ethernet-based fieldbus system standardized in IEC 61158 and SEMI, and widely used in the fields of factory automation, semiconductor equipment and robotics. In this paper, an EtherCAT master is implemented on an embedded board with Arm based 64-bit quad-core processor and its jitter performance is evaluated at the output of the network interface to include all the effects of the entire system in the results. For the EtherCAT master system, an open source EtherCAT master stack, Simple Open EtherCAT Master (SOEM), is installed on PREEMPT_RT patched Linux operating system for real-time operation. The results show that the jitter performance is comparable to that of Xenomai-based master and the EtherCAT master with two master instances has similar jitter performance to the EtherCAT master with one master instance.

• 기본간호학회지
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• 제9권3호
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• pp.399-411
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• 2002

Purpose: This study was done to investigate the application of complementary and alternative therapies (CAT) in patients with chronic liver disease. and to analyze the Influence of health locus of control (HLOC) on CAT. Method: Questionnaires on CAT and a multidimensional health locus of control (MHLOC) scale developed by Wallston and Wallston were completed by 141 patients. Result: Analysis showed that 44.7% of the patients had experience with CAT and 49.2% of the patients reported being willing to use CAT. Reliability scores for the scale were HLOC-I 0.7376, HLOC-P 0.6383, HLOC-C 0.7351. The mean scores for the HLOC were HLOC-I 24.86, HLOC-P 22.86, HLOC-C 16.00. There were no significant differences in mean scores for HLOC between the patients who had used CAT and those who had not. Eight response Patterns for HLOC were identified. Among them, 'yea sayer' was the largest group (27.0%). A significant difference was found in the 'yea sayer' pattern between the group who had used CAT and the group who had not. Conclusion: CAT relates to various cognitive factors such as HLOC. Further study is needed to examine the influence of HLOC on CAT and its response patterns.