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한약재 주정 추출물이 종자발아와 유묘생장에 미치는 영향
김진효 ( Jin Hyo Kim ),김준영 ( Jun Young Kim ),류성지 ( Sung Ji Ryu ),최근형 ( Geun Hyoung Choi ),김원일 ( Won Il Kim ),김세리 ( Se Ri Kim ),박병준 ( Byung Jun Park ),조남준 ( Nam Jun Cho ) 한국환경농학회 2014 한국환경농학회지 Vol.33 No.3
BACKGROUND: Herbal extracts have been screened fortheir inhibitory effect of seed germination and rootdevelopment on weeds, but there is a scarcity of reports forcrop growth regulation. The objective of this research wasto develop a growth inhibitor on Brassica campestris, andits effective extraction method from herbal medicineextract. METHODS AND RESULTS: Eighty four herbal medicineextracts were tested for their plant growth inhibitionactivity on B. campestris. The alcohol extracts of Artemisiaannua, Cinnamomum cassia, and Mentha arvensisinhibited over 30% of germination and the extract of A. annua, and C. cassia inhibited over 70% of radicle growthat 0.1 % w/w treatment. The partially purified extracts of A. annua, and C. cassia with dichloromethane and hexaneshowed stronger radicle growth inhibition than the crudeextracts on B. campestris. The diethyl ether extract of A. annua showed a similar 50% radicle growth inhibition (RI50= 45 mg/L) to its partially purified extract withdichloromethane or hexane, but the diethyl ether extract ofC. cassia showed a worse RI50 than the purified extract. CONCLUSION: The alcohol extracts of A. annua, and C. cassia showed potent radicle growth inhibition propertieson B. campestris. Diethyl ether proved to be a good solventfor simple extraction from A. annua.
청소년이 지각한 아버지의 역할수행과 자아존중감에 관한 연구
손미리,류점숙,신효식 한국 가정과 교육 학회 1997 한국가정과교육학회지 Vol.9 No.1
The purpose of this study is to analyze the state of father's role performances and self-esteem of adolescents, to investigate the relation between the father's role performances recognized by adolescents and the self-esteem of adolescents, and to present the basic data for showing the importance of father's role in increasing the adolescents' self-esteem. The subject of this survey was 795 male and female students of the second grade in Kwangju middle and high schools. The questionanaire was used for this study as a means of measuring. The results of this study were as follows : 1. The degrees of father's role performances were considered '82.19 points' out of 125 by adolescents but rather high by the female students, it didn't have any significant difference between the male students and female. 2. The degrees of adolescents' self-esteem were '51.17 points' out of 85 on the whole. But specifically, the degrees of adolescents' self-esteem of the male students were higher than those of the female students. This self-esteem of adolescents caused significant differences in the right to the decision-making and the father's occupation only. 3. The influence of father's role performances on the adolescents' self-esteem was found very high, and more influence were showed by the female students than by the male students. 4. The order in the effective power of variables on the adolescents' self-esteem was as following; the role in command and harmony, the sex, the economic role, the role in intellectual ability development. In conclusion, father's role performances were found to be important variables on the conform of adolescents' self-esteem.
Ultrasonic Fatigue Test Method for Stress Ratio Control
Hyo-Ri Kim(김효리),Seung-Hyeon Song(송승현),Ji-U Ha(하지우),Jeong-Eun Lee(이정은),In-Sik Cho(조인식) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Ultrasonic Fatigue Testing (UFT) is an accelerated fatigue test, typically at 20 kHz, which significantly shortens the application period of newly developed processes and materials in various mechanical parts and materials fields. In this paper, the system technology for controlling the stress ratio in ultrasonic fatigue testing is to be explained. This fatigue stress ratio control test is important for fatigue testing of aviation and power plant turbine parts, and is also an important method for crack propagation testing. Basically, an ultrasonic fatigue tester designed by applying the resonance analysis results to a 20KN tensile tester was attached to set the average stress and then enabled it at various stress ratios. Also, as a method of setting the corrected fatigue stress, the method of measuring the strain gauge at the center of the specimen and the method of simultaneously measuring the amplitude of the end of the specimen are described. Therefore, the results of this paper are intended to explain the construction of an ultrasonic fatigue tester optimized to suit various fatigue conditions and environments.
증례 : 소화기 ; 오른쪽 첫 번째 중족골로 전이된 간세포암 1예
진은효 ( Eun Hyo Jin ),이명진 ( Myung Jin Lee ),정광현 ( Kwang Hyun Chung ),조유리 ( Yu Ri Cho ),유수종 ( Su Jong Yu ),문경철 ( Kyung Chul Moon ),이효석 ( Hyo Suk Lee ) 대한내과학회 2013 대한내과학회지 Vol.84 No.1
간세포암이 사지 말단으로 전이되는 경우는 매우 드물며, 병변이 양성 종양이나 감염증과 비슷한 양상으로 오진되기도 한다. 일반적으로 악성 종양이 손, 발과 같은 말단 부위로 전이되는 경우는 드물며, 더욱이 간세포암이 발의 말단으로 전이된 증례는 보고된 바 없다. 본 연구자 등은 간세포암이 첫 번째 중족골에 국한된 종괴의 형태로 발견되어 수술 및 조직검사를 통해 간세포암의 뼈전이로 확진된 매우 드문 증례를 경험하였기에 보고하는 바이다. Metastases from hepatocellular carcinoma to the bones of the hands or feet are rare. They are usually a late manifestation of a disseminated tumor but may also be the primary manifestation of an occult cancer. Clinically, the metastasis may mimic benign tumors or non-neoplastic osteoarthritic conditions; thus, resulting in misdiagnosis and improper treatment. We report a case of acrometastasis to the right first metatarsal bone in a 70-year-old man with hepatocellular carcinoma. (Korean J Med 2013;84:81-84)
증례 : S상 결장암에 동반된 부신생물 말초 호산구증가증 1예
이나리 ( Na Ri Lee ),전승민 ( Soung Min Jeon ),차병효 ( Byung Hyo Cha ),박길효 ( Kil Hyo Park ),이종섭 ( Jong Sup Lee ),문도호 ( Do Ho Moon ) 대한내과학회 2005 대한내과학회지 Vol.69 No.-
저자들은 S상 결장암에 동반된 말초 호산구 증가증이 있는 56세 환자에서 간 및 주위 임파선에 다수 전이가 되어 예후가 불량했던 환자 1예를 경험하였기에 문헌고찰과 함께 이를 보고하는 바이다. Eosinophilia is most commonly associated with allergic disorders or parasitic infestation. However, collagen vascular diseases, drug reactions, radiation therapy, and many types of human cancer are also associated with extensive eosinophilia. Peripheral eosinophilia associated with malignancy is a marker of extensive metastasis and is thus associated with a poor prognosis. A 56-year-old male presented with history of right upper quadrent pain and weight loss. Total white blood count was 29,800/㎣ with 69.2% eosinophilia. Abdominal ultrasonogram showed multiple metastasis in liver and abdominal CT scan showed paraaortic lymph node enlargement. Colonoscopy and biopsy revealed moderate to poorly differentiated adenocarcinoma in sigmoid colon. (Korean J Med 69:S753-S757, 2005)
Lee, Youn-Ri,Lee, Chang-Kwon,Park, Hyo-Jun,Kim, Hyo-Jin,Kim, Jung-Hwan,Kim, Jae-Heung,Lee, Keun-Sang,Lee, Yun-Lyul,Min, Kyung-Ok,Kim, Bo-Kyung Korean Physical Therapy Science 2006 대한물리치료과학회지 Vol.13 No.2
Vascular smooth muscle contraction is mediated by activation of extracellular signal-regulated kinase (ERK) 1/2, an isoform of mitogen-activated protein kinase (MAPK). However, the role of stress-activated protein kinase/c-Jun N-terminal kinase (JNK) in vascular smooth muscle contraction has not been defined. We investigated the role of JNK in the contractile response to norepinephrine (NE) in rat aortic smooth muscle. NE evoked contraction in a dose-dependent manner, and this effect was inhibited by the JNK inhibitor SP600125. NE increased the phosphorylation of JNK, which was greater in aortic smooth muscle from hypertensive rats than from normotensive rats. NE-induced JNK phosphorylation was significantly inhibited by SP600125 and the conventional-type PKC (cPKC) inhibitor Go6976, but not by the Rho kinase inhibitor Y27632 or the phosphatidylinositol 3-kinase inhibitor LY294002. Thymeleatoxin, a selective activator of cPKC, increased JNK phosphorylation, which was inhibited by $G{\ddot{o}}6976$. SP600125 attenuated the phosphorylation of caldesmon, an actin-binding protein whose phosphorylation is increased by NE. These results show that JNK contributes to NE-mediated contraction through phosphorylation of caldesmon in rat aortic smooth muscle, and that this effect is regulated by the PKC pathway, especially cPKC.