• Title/Summary/Keyword: CAO

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An examination of the indigenous medicinal herbs that appear in ZhongXiuZhengHuoJingShiZhengLeiBeiYongBenCao(重修政和經史證類備用本草) (『중수정화경사증유비용본초(重修政和經史證類備用本草)』에 나타난 향약본초(鄕藥本草)에 대한 고찰)

  • Gang, YeonSeok;An, SangU
    • The Journal of Korean Medical History
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    • v.17 no.2
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    • pp.63-72
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    • 2004
  • In 1189's ZhongXiuZhengHuoJingShiZhengLeiBeiYongBenCao(重修政和經史證類備用本草), we took a look at the medicinal herbs that mentioned JoSeon(朝 鮮), GoRyeo(高麗), BaekJe(百濟), SinRa(新羅), DongIn(東人), DongHae(東海), YoDong(遼東), and BalHae(渤海). In the face of Korea's Oriental medicine's reality of having medical texts only after the 2nd half of the GoRyeo(高麗) Dynasty, this study will provide the basis of finding the origin of Indigenous Herbal Medical Science that was founded in the late-GoRyeo(高麗), early-JoSeon(朝鮮) period.

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Characterization of p-type transparent conducting $CuAIO_2$ thin film prepared by Pusled Laser Deposition

  • Eom, Se-Yeong;Lee, Jong-Cheol;Heo, Yeong-U;Lee, Jun-Hyeong;Kim, Jeong-Ju
    • Proceedings of the Korean Institute of Surface Engineering Conference
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    • 2007.11a
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    • pp.105-106
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    • 2007
  • p형 투명 전도막을 만들기 위해 박막화의 가능성 있는 벌크(bulk)상태의 p형 투명 전도 물질을 합성하고, 박막화 하여 p형 투명 전도 물질의 기초적 물성을 조사하여 p형 투명 전도 물질의 개발 가능성을 조사하였다. p-type $CAO_2$ 박막은 열처리를 통하여 얻을 수 있었다. $CAO_2$ 박막은 초기 증착 온도가 $650^{\circ}C$이하에서는 열처리를 통해서도 $CAO_2$상을 얻을 수가 없었고 오직 공기중 분위기에서만 c-axis 배향을 가진 $CuAIO_2$ 단일상 박막을 얻을 수 있었다. $CuAIO_2$ 단일상 박막은 2개의 상이 공존하고 있는 것으로 생각된다.

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Scientific Research Training for Prospective Mathematics Teachers in China

  • Cao, Shangmin;Cao, Pin
    • Research in Mathematical Education
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    • v.3 no.1
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    • pp.23-34
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    • 1999
  • This paper presents a summary of the Scientific Research Training (SRT) in Liaocheng Teachers University, which is a representative of normal universities and teachers' colleges in China. There is a survey on the situation of SRT in China systematically and historically. Tentative ideas about SRT in future are targeted at the teachers and heads of departments in China.

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Measurement of Ventilatory Threshold in the Patients with Chronic Airway Obstruction (만성기도폐쇄를 보이는 환자에서 환기성역치 측정)

  • Lee, Kye-Young;Jee, Young-Koo;Kim, Keun-Yeol
    • Tuberculosis and Respiratory Diseases
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    • v.44 no.2
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    • pp.309-320
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    • 1997
  • Background : There are many suggested methods for the indirect determination of anaerobic threshold(AT) using the changes of ventilatory parameters in response to ventilatory load accompanying the increase of blood lactic acid level during exercise and the threshold derived from them is called ventilatory threshold(VT). They include ventilatory equivalent method(VEM), End-tidal $PO_2$ method($PETO_2$). V-slope method(VSM), and respiratory quotient method(RQ). But in the patients with chronic airway obstruction(CAO), the AT determined by ventilatory methods may not reflect true AT because the patients with CAO show inadequate ventilatory response to the increase of blood lactic acid level during excercise. Methods : For the investigation of detection rate and reliability of above four VT determination methods in the patients with CAO, we performed the symptom-limited and maximal incremental exercise test in 17 patients with CAO and 12 normal controls. The incremental workload was 10 W /min in CAO group and 25 W/min in control group. The reliability of VT in each group was investigated by the calculation of Spearman correlation coefficient. Results : The detection rates of VT were 100% by RQ, 91.7% by both VEM and $POETO_2$, and 83.3% by VSM in normal control group, while 94.1% by RQ, 64.7% by VEM and $PETO_2$, and 83.3% by VSM in CAO group. Good correlations were noted among VEM, $POETO_2$, and VSM except RQ in normal control group. But there was no significant correlation except between VEM and $PETO_2$ in CAO group. Conclusions : RQ is very sensitive but crude and VEM is near similar to $PETO_2$. The clinical usefulness of VT determined by ventilatory method might be limited in patients with severe CAO.

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Classification of Entries in Bon-cho-kang-mok (Ben Cao Gang Mu) -I. Entries in the Part of Herbs- (본초강목 수재생약의 식물분류학적 고찰-I -초부편-)

  • Sung, Jung-Sook;Suh, Kang-Tae;Moon, Sung-Gi;Lee, Chung-Kyu
    • Korean Journal of Pharmacognosy
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    • v.26 no.3
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    • pp.276-306
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    • 1995
  • The plant entries in the part of herbs in Ben Cao Gang Muwas classified according to the protocols of Engler and other botanists. Total numbers of plant written in chinese names were 635. Among them only 432 entries were able to be classified by elucidation of several references. They were classified as eight Divisions, 13 Classes, nine Subclasses, 60 Orders, 38 Suborders, 119 Families, 304 Genera, 377 Species with 25 Varieties and one Forma. According to the category of division, the Angiospermae was the largest group of 94 Families, 276 Genera, 348 Species, 24 Varieties and one Forma, whereas only one Genus and one Species belonged to Fungi and the Gymnospermae. Other 203 entries were unable to be classified because of their ambiguities in name.

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A Study on Thermal Characteristic Carbon and other Elements in Suspended Particulates (대기 입자상물질중 탄소(C)등의 열적특성에 관한 조사연구)

  • 황경철
    • Journal of Environmental Health Sciences
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    • v.16 no.2
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    • pp.31-39
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    • 1990
  • An analytical method for particulate carbon and other elements by using elemental analyzer was investigated. Carbon, hydrogen, and nitrogen was determined as CO$_{2}$, H$_{2}$, and N$_{2}$, respectively. Organic was determined after scparation from elemental carbon(Cae) by volatilization and thermal decomposition in a heated helium flow. With organic materials examined in this reprot, more than 90% of carbon was detected as above 600$^{\circ}$C. But it is considered that a few percents of some compounds were charred above 550$^{\circ}$C. A small amount of Cae was oxidized in the inert atmosphere above 850$^{\circ}$C, but the reason was not explained clearly. Based on the thermal chracteristics of Cao it was found that the optimum temperature of heating in the helium flow of an elemental analyzer for Cao analysis is 630$^{\circ}$C. Carbon in a sample after removing Cao was assumed as Cae and the gramatom ratio of hydrogen to carbon in the sample was 0.4 and less. Rescovery of nitrogen derived from some ammonium salts and nitrates was 100% by two-step measurement with elemental analyzer. By the analytical method investigated in this report, carbon and other elements in suspended particulates(S.P) collected at an urban area in Seoul were measured. There was a good correlation between total nitrogen in SP measured by elemental analyzer and nitrogen estimated form ammonium ions and nitrate ions in SP. The nitrogen from these ions accounts for 80% of the total nitrogen. It is further suggested that the residue(20%) of the total nitrogen is attributed to the other nitrogeneous compounds.

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Enhanced tolerance through increasing polyamine contents in transgenic tobacco plants with antisense expression of ACC oxidase gene (ACC oxidase 발현 억제 식물체에서 폴리아민 생합성 증가에 의한 스트레스 저항성 증강)

  • Wi, Soo-Jin;Park, Ky-Young
    • Journal of Plant Biotechnology
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    • v.38 no.1
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    • pp.54-61
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    • 2011
  • Antisense construct of cDNA for senescencerelated ACC oxidase (CAO) cDNA isolated from carnation flowers were introduced into tobacco by Agrobacteriummediated transformation. The decreasing expression of NtACO and the reduction of ethylene production were observed in these transgenic lines. In contrast, the SAMDC transcripts and spermidine content were increased. The findings that higher content of spermidine in the ethylene suppressed transgenic plants compared with wild-type should be directly resulted in the enhancement of SAMDC activity followed by the increased accumulation of SAMDC transcript. To investigate the pathogenic response in these transgenic plants, wild-type and transgenic plants were inoculated with Phytophthora parasitica pv. nicotianae. Transgenic plants suppressing ethylene production showed the increased resistance against fungal pathogen, comparing with wild-type plant. PR-protein genes expression in CAO-AS-2 and CAOAS-4 were also higher at the normal growth condition and pathogenic response than in wild-type plants. The results of higher spermidine content and SAMDC activity in transgenic plants, CAO-AS-2 and CAO-AS-4, support the possibility that an increase in spermidine content might induce the higher transcripts of PR-protein genes. This results agreed with the phenomena that spermidine promoted the expression of PR1a and a SAMDC inhibitor, MGBG, decreased the expression of PR1a in leaf discs. These results suggest that the resistance against fungal pathogen in transgenic tobacco impaired in ethylene production might be caused by increasing in polyamine, especially spermidine, biosynthesis.