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β-Amino-n-butyric Acid Regulates Seedling Growth and Disease Resistance of Kimchi Cabbage
Kim, Yeong Chae,Kim, Yeon Hwa,Lee, Young Hee,Lee, Sang Woo,Chae, Yun-Soek,Kang, Hyun-Kyung,Yun, Byung-Wook,Hong, Jeum Kyu The Korean Society of Plant Pathology 2013 Plant Pathology Journal Vol.29 No.3
Non-protein amino acid, ${\beta}$-amino-n-butyric acid (BABA), has been involved in diverse physiological processes including seedling growth, stress tolerance and disease resistance of many plant species. In the current study, treatment of kimchi cabbage seedlings with BABA significantly reduced primary root elongation and cotyledon development in a dose-dependent manner, which adverse effects were similar to the plant response to exogenous abscisic acid (ABA) application. BABA was synergistically contributing ABA-induced growth arrest during the early seedling development. Kimchi cabbage leaves were highly damaged and seedling growth was delayed by foliar spraying with high concentrations of BABA (10 to 20 mM). BABA played roles differentially in in vitro fungal conidial germination, mycelial growth and conidation of necrotroph Alternaria brassicicola causing black spot disease and hemibiotroph Colletotrichum higginsianum causing anthracnose. Pretreatment with BABA conferred induced resistance of the kimchi cabbage against challenges by the two different classes of fungal pathogens in a dose-dependent manner. These results suggest that BABA is involved in plant development, fungal development as well as induced fungal disease resistance of kimchi cabbage plant.
석수지,김호창,정보영,서억수,정병욱 동국대학교 의학연구소 2009 東國醫學 Vol.15 No.2
결핵성 눈물샘염은 매우 드물게 발생하며 주로 혈액을 통해 감염되거나 결막 또는 부비동으로부터 직접 전파되어 발생할 수 있다. 진단은 특징적인 조직 병리 소견으로 확진하며 피부 결핵 반응 검사, 항산균 염색법, 세균 배양법등도 진단에 도움이 된다. 임상소견은 무통성 종괴로 나타날 수 있으며, 눈물샘에 흔히 발생하는 양성 혼합 종양과 감별하기 위해 절제 생검과 병리조직검사를 시행하여야 하며, 항결핵제 요법을 시행한다. 저자들은 64세 여자환자에서 특별한 안증상이나 피부증상 없이 발생한 좌측 안와 종괴를 절제 생검하여 결핵성 눈물샘염을 진단하고 항결핵제를 투여하여 완치를 경험하였기에 문헌고찰과 함께 보고하는 바이다. Infection of the lacrimal gland by the M. tuberculosis is uncommon. It usually occur by hematogenous spread from some other systemic focus or directly from primary conjunctival tuberculosis or from the paranasal sinuses. The diagnosis is established through specific histopathologic finding, tuberculin skin test and the stain and culture of acid-fast bacilli. The presenting symptom is usually painless swelling of the eyelid, mimicking a benign mixed tumor of the lacrimal gland. Treatment with anti-tubercular drugs is mandatory in lacrimal gland tuberculosis. The authors experienced a case of primary tuberculosis of the lacrimal gland which occurred in a 64 year-old female whose showed painless swelling of eyelid and which was treated with excisional biopsy and anti-tuberculosis medication.
Effects of 8-week resistance exercise on gait-related isokinetic muscle function in males by age
Jin-Soek Choi,Hwan-Jong Jeong,Ki-Hong Kim,Byung-Kwan Kim 한국인터넷방송통신학회 2023 International Journal of Internet, Broadcasting an Vol.15 No.1
The purpose of this study was to examine the effects of 8 weeks of resistance exercise on gait-related abilities and the differences in age groups to provide reference materials for application of training by age group. Subjects in their 30s, 40s, and 50s were recruited and subjected to a lower extremity exercise, in which the intensity gradually increased three times a week for eight weeks. The gait-related variables, torque at 0.18 sec, acceleration time, and torque at 30°, were assessed through isokinetic tests before and after the 8-week training. The torque at 0.18 sec showed a significant increase in the 50s group. There was no significant difference in acceleration time according to time and group. The torque at 30° showed a significant increase in the 30s group. In conclusion, 8 weeks resistance training can increase neuromuscular activity in adults in their 50s group, and changes in training variables are needed to increase torque at 30° that affects knee stabilization in adults over 40s group.
Field Capacity Analysis of an Integrated Tractor Implement for Sequential Upland Farming
( Tae Su Soek ),( Byung Mook Kim ),( Young Mo Koo ) 한국농업기계학회 2018 한국농업기계학회 학술발표논문집 Vol.23 No.1
In upland farm agriculture of Korea, each farming operation is solely mechanized, so it does not contribute to promote labor-saving rate in upland agriculture. Thus, the concept of a tractor-attached integrated implement system was conceived by combining full operations of the upland farming. Therefore, the objective of this study is to evaluate labor-saving rate (LSR) through field capacity analysis for the developed an integrated tractor implement. The theoretical working time of the integrated implement (BG-1200ABC, B Co. Ltd., KR) including five modules is 0.56 hr/10a, reducing 67% of working time comparing with that of conventional individual farming process. Effective field capacity is 0.09 ha/hr, which is about 3 times better than that of conventional practices and the arable area is evaluated to be 9.07 ha. Consequently, a sequential field work using the integrated tractor implement would considerably contribute to the labor-saving in the upland farming.
광대역 네트워크 환경을 위한 DNS 지원 이동 멀티캐스트
백원석(Paek Won-Soek),장경성(Jang kyung-sung),김병기(Kim byung-gi) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.2Ⅲ
인터넷의 급속한 성장과 함께 휴대용 컴퓨터의 보급은 사용자로 하여금 이동 컴퓨팅을 가능케 하고 있다. IETF의 Mobile IP 표준은 TCP/IP 망에서의 호스트 이동을 정의한다. 또한 인터넷을 통한 다자간 영상회의나 원격공동작업 등의 멀태캐스트 응용들이 개발되었다. 현재 이동 컴퓨팅과 멀티캐스팅 전송기술을 접목시키는 연구가 활발히 진행되고 있으며, 본 논문에서는 광대역 환경에서 도메인 네임 서버를 이용하여 기존의 이동 멀티캐스트 방법이 가지는 통신 지연 시간 문제를 해결하는 새로운 서비스 모델을 제시한다.
갱년기 장애에서 인태반 추출물 주사제의 효과 및 안전성에 대한 평가
박유란 ( Yu Ran Park ),김소라 ( So Ra Kim ),전균호 ( Gyun Ho Jeon ),김성훈 ( Sung Hoon Kim ),채희동 ( Hee Dong Chae ),김정훈 ( Chung Hoon Kim ),서창석 ( Chang Suk Suh ),이병석 ( Byung Soek Lee ),최훈 ( Hoon Choi ),박형무 ( Hyoung 대한폐경학회 2009 대한폐경학회지 Vol.15 No.3
연구목적: 현재 인태반추출물은 간 기능 개선 및 갱년기 증상 개선제로 허가되어 시판되고 있다. 하지만 아직까지는 각각의 효능에 대한 객관적인 검증이 거의 이루어지지 않았고 또한 이에 대한 기전 및 부작용 등에 대해 연구가 부족한 실정이다. 따라서 본 연구에서는 현재 널리 이용되고 있는 인태반 추출물 주사제의 갱년기 장애 증상 호전 효과를 평가하고 주사제의 유효성 및 안전성을 검증하고자 하였다. 연구재료 및 방법: 서울의 5개 기관을 방문한 만40세 이상의 여성 중 폐경이 확인되고 열성 홍조 증상을 호소하는 지원자를 모집하였다. 총 130명의 지원자를 대상으로 하여 이중 맹검법을 이용하여 무작위로 시험군과 대조군으로 나누었다. 이후 이중 맹검법을 이용하여 2주간 방문하여 시험군에는 인태반 추출물을 대조군에는 위약을 피하조직에 총 6회를 시행하였다. 이후 KI (Kupperman Index)점수, 열성 홍조 점수 개선 정도를 비교, 측정하도록 하였고 이에 대한 결과를 비교하였다. 이후 객관적인 수치의 비교를 위해 투약 전후의 E2, FSH 농도를 측정하여 이를 비교 하였다. 또한 인태반 추출물의 안정성을 평가하기 위해 투약 후 이상반응, 활력 징후 등을 WHOART 기준에 의해 측정하여 이상반응을 평가하였다. 결과: 주관적인 지표인 KI 점수는 유의하게 호전(P=0.0013) 되었으나 그 외 열성 홍조 변화량(P=0.8044)이나 객관적인 지표인 E2, FSH 농도는 변화가 없었다 (E2 농도, P=0.7665, FSH 농도, P=0.3577). 또한 투약 후 유의한 이상반응은 관찰되지 않았다 (χ2-test, P=0.7037). 결론: KI 점수의 경우 두 그룹간에 유의한 차이를 보였으나 열성 홍조 점수는 차이를 보이지 않았다. E2, FSH 농도도 또한 두 그룹간에 차이를 보이지 않았다. 인태반 추출물 사용시 의미 있는 부작용은 관찰되지 않았다. Objectives: In Korea, human placental extract (HPE) has been approved as a therapeutic agents for chronic liver diseases and menopause syndrome. However evidence-based studies about the effectiveness, mechanism of action, and side effects of HPE are incomplete. The aim of this study was to examine the effects of HPE on menopausal symptoms, and safety in middle-aged Korean women in a double-blind randomized controlled trial. Methods: Korean women >40 years of age, with menopausal symptoms and hot flushes were recruited as participants in 5 university hospitals in Seoul, Korea. The 130 women were randomly assigned as followed to a double blind test: the HPE group (n=66) received 6 subcutaneous injections of HPE for 2 weeks; the placebo group (n=64) received normal saline. The KI (Kupperman index) score, severity of hot flushes were and concentrations of E2 and FSH in serum were measured. The side effects of HPE were assessed. Results: The KI score was decreased significantly after 2 weeks of HPE treatment compared with the placebo group (P=0.0013); however, the severity of the hot flushes were not different between the two groups (P=0.8044). The E2 and FSH levels of the HPE group were not significantly increased at 2 weeks after HPE treatment compared with of the placebo group (E2 level, P=0.7665, FSH level, P=0.3577). No evidence of side effects were observed in either group (χ2-test, P=0.7037). Conclusion: The KI score in middle-aged Korean women improved after 2 weeks of HPE treatment, whereas the difference in hot flushes, and E2 and FSH levels did not change during the study period. No evidence of significant side effects were observed in patients treated with HPE. (J Korean Soc Menopause 2009;15:178-185)