• 제목/요약/키워드: Bang-Jae

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Extensive Chromosomal Polymorphism Revealed by Ribosomal DNA and Satellite DNA Loci in 13 Citrus Species

  • Kang, Sung-Ku;Lee, Dong-Hoon;An, Hyun-Ju;Park, Jae-Ho;Yun, Su-Hyun;Moon, Young-eel;Bang, Jae-Wook;Hur, Yoonkang;Koo, Dal-Hoe
    • Molecules and Cells
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    • 제26권3호
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    • pp.319-322
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    • 2008
  • Little is known about the chromosomal variability and polymorphism existing in mitotic chromosomes of Citrus, mainly due to lack of reliable chromosomal markers and small chromosome size. To test the hypothesis of chromosomal polymorphism and provide the foundation of the genome organization in the Citrus cultivars, we have developed molecular cytogenetic markers for 13 Citrus species collected from Jeju island, Korea. In this study, we demonstrated that the chromosomal locations of cytogenetic markers are quite variable and extremely polymorphic, in contrast to the previous studies. The data obtained in this study will be of utmost importance in cytological systematics and karyotyping of the Citrus species.

Study on the Isothermal Crystallization Behaviors of PEN/TLCP Blends

  • Park, Jong-Ryul;Yoon, Doo-Soo;Lee, Eung-Jae;Bang, Moon-Soo;Choi, Jae-Kon
    • Elastomers and Composites
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    • 제51권1호
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    • pp.56-62
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    • 2016
  • The isothermal crystallization behaviors of blends of poly(ethylene naphthalate) (PEN) and a thermotropic liquid crystalline polymer (TLCP) were investigated by differential scanning calorimetry (DSC) as functions of crystallization temperature and blend composition. Avrami analyses were applied to obtain information on the crystal growth geometry and the factors controlling the rate of crystallization. The crystallization kinetics of the PEN/TLCP blends followed the Avrami equation up to a high degree of crystallization, regardless of crystallization temperature. The calculated Avrami exponents for PEN/TLCP revealed three-dimensional growth of the crystalline region in each blend. The crystallization rate of each blend increased as the crystallization temperature decreased, and decreased as the TLCP content increased. The crystallization of PEN in the blend was affected by the addition of TLCP, which acts as a nucleating agent.

Cardiac Resynchronization Therapy in Infant with Dilated Cardiomyopathy during Extracorporeal Membrane Oxygenator

  • Bang, Ji Hyun;Oh, You Na;Ko, Jae-Kon;Kang, So Yeon;Baek, Jae Suk;Park, Chun Soo
    • Journal of Chest Surgery
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    • 제48권1호
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    • pp.55-58
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    • 2015
  • Although heart transplantation is a final therapeutic option in pediatric patients with dilated cardiomyopathy (DCMP), the shortage of pediatric heart donors is a major obstacle. In adults with DCMP characterized by cardiac dyssynchrony, cardiac resynchronization therapy (CRT) is known to be an effective treatment option. However, there is a lack of evidence on the effectiveness of CRT in infants with DCMP. Several studies have reported improvement in hemodynamics and cardiac performance following CRT in infants with DCMP. Here, we report CRT in an infant with DCMP during extracorporeal membrane oxygenation with 5 months of follow-up.

3- (치환) 테트라조일메칠세파로스포린의 합성과 생리활성 (Synthesis and Biological Activity of 3 - (Substituted) Tetrazolylmethyl Cephalosporins)

  • 고옥현;김영수;고봉석;이재영;하재천;방희재;유진철;강형룡
    • 약학회지
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    • 제42권1호
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    • pp.12-24
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    • 1998
  • For the development of new cephalosporin antibiotics with aminothiazolcarboxymethylethoxyimino moiety on the C-7 position and tetrazolymethyl moiety on the C-3 position of cephe m ring, 7${\beta}$-[(Z)-2-(2-aminothiazol-4-yl)-2-(1-carboxy-1-methylethoxyimino)acetamido]-3-[5-(substituted)tetrazol-2-yl]methyl-3-cephem-4-carboxylic acids(28-35) were synthesized. These compounds were tested for antimicrobial activity in vitro against Gram(+) and Gram(-) bacteria. They showed remarkable antibacterial activity against Escherichia coli AB 1157, Escherichia coli AB 0111, Escherichia coli BE 1186, Micrococcus luteus ATCC 9341, Salmonella typhimurium TV 119, Salmonella typhimurium SL 1102, Staphylococcus aureus IFO 12732, Staphylococcus aureus R-209, but these compounds were not active against Pseudomonas aeruginosa N-10.

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한방 난임 치료 시범사업에 참가한 여성의 임신 성공에 영향을 미치는 요인에 관한 연구 (A Study on Factors Influencing Pregnancy in the Pilot Project for Korean Medical Treatment for Subfertility)

  • 안인숙;김동일;최민선;장석우;정재철
    • 대한한방부인과학회지
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    • 제26권3호
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    • pp.73-84
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    • 2013
  • Objectives: This study aims to identify associated factors in female infertility treatment using herbal medicine, acupuncture and moxibustion. Methods: Acupuncture and moxibustion treatments were performed with intake of herbal medicines (Jokyungjongoktanggagam-bang, Sutaehwangagam-bang) for six menstrual cycles in 32 subfertile women. The variables selected for initial analysis were age, duration and type of infertility, frequency of previous In Vitro Fertilization (IVF) and live births, weekly frequency of sexual intercourse, number of treatment cycles, endometrial thickness on MCD15 and hormonal parameter (anti-mullerian hormone, follicle-stimulating hormone, luteinizing hormone, estrone). Results: Six patients became pregnant (18.75%) and seven patients withdrew. Factors influenced pregnancy were age (${\leq}35$ years), a shorter duration of infertility (<6 years), frequency of IVF (${\leq}3$), anti-mullerian hormone level (>1 ng/ml), and number of treatment cycles(${\leq}3$ cycles). Conclusions: Korean medicine is a useful and optimized treatment option for women with younger age, fewer previous IVF cycles, shorter infertile duration and normal anti-mullerian hormone level at first 3 cycles of treatment.

뇌졸중에 병발된 폐렴환자의 임상적 고찰 (Clinical Study of Pneumonic Patients combined with Stroke)

  • 정희재;정승기;이형구;한동하
    • 대한한방내과학회지
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    • 제21권5호
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    • pp.723-728
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    • 2000
  • Objective : Pneumonia is a frequent complication in stroke and is very important as a prognostic factor. So We had a clinical study about pneumonic patients combined with stroke in which we administered both antibiotics and oriental herbal medicine to them. Methods : The 14 cases were patients that admitted visited 31CU at neurologic department in Kyunghee medical center from the 1st of October to the 31st of November, 1998. because of stroke. We selected cases complicated pneumonia. We diagnosed stroke as brain CT or MRI and pneumonia as chest simple X-ray, fever, sputurn culture et al. We divided the group into several categories(衛分證, 氣分證, 營分證, 血分證, 正虛邪退證) and medicined them both Paerum-bang(肺炎方) and antibotics. We evaluated the results as increased signs and some tests including chest simple X-ray, GOT, GPT, BUN and Creatinine. Results : Among total 14 cases, cases of perfect cure including improvement were 10, aggravation were 2 and discontinued cases were 2. We observed 17.4 days on the average. Their functions of liver and kidney weren't aggravated as medicining both antibiotics and oriental herbal treatment. Conclusion : We suggest that eastern treatment need to improve resistance of pneumonic patients and may reduce the side effect of western antibiotics therapy.

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개시호 (Bupleurum longeradiatum)의 핵형분석과 rDNAs의 Physical Mapping (Karyotype Analysis and Physical Mapping of rDNAs in Bupleurum longeradiatum)

  • 구달회;성낙술;성정숙;방경환;방재욱
    • 한국약용작물학회지
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    • 제11권5호
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    • pp.402-407
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    • 2003
  • 개시호 (Bulpleurum longeradiatum)를 대상으로 상염 색법과 FISH기법을 통한 염색체 분석을 통하여 다음과 같은 결과를 얻었다. 개시호의 체세포 염색체 수는 2n=12이었으며, centromeric index를 전중기 염색체를 이용한 핵형 분석에서 염색체 조성은 3쌍의 중부 염색체 (3번, 4번 및 6번)와 3쌍의 차중부 염색체 (1번, 2번 및 5번)로 구분되었다. 염색체의 길이는 $2.55{\sim}5.05\;{\mu}m$로, 전체 길이는 $18.15\;{\mu}m$로 나타났다. 5S 와 45S rDNA를 탐침으로 FISH를 수행한 결과 4번 염색체의 동원체 부위 에서 한 쌍의 5S rDNA signal이 확인되었고, 2번 염색체의 부수체에서 한 쌍의 45S rDNA signal이 관찰되었다.

교통사고 후 편타성 손상에 대한 침치료 및 봉독약침치료의 유효성 평가 (A Clinical Study on the Effect of Acupuncture and Bee-Venom Acupuncture for Patients with Chronic Whiplash Injury)

  • 김건형;최양식;남동우;김종인;조기호;최도영;이재동
    • Journal of Acupuncture Research
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    • 제23권6호
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    • pp.145-152
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    • 2006
  • Objectives : The aim of this study is to investigate the effect of Acupuncture and Bee-venom acupuncture for patients with chronic whiplash injury. Methods : Subjects were voluntarily recruited by newspapers and internet. Acupuncture(Eo-Hyeol Bang) and Bee-Venom Acupuncture were performed two times a week for 4 weeks. The patients' symptoms were assessed before, after 4 weeks of treatment by Visual Analogue Scale(VAS), Medical Outcome Study(MOS) 36-Item Short-Form Health Survey(SF-36) Results : VAS score was significantly improved after 4 weeks(p<0.05) compared to the pre-treatment. There were significant changes in physical functioning(PF), Social functioning(SF), role-physical(RP), role emotional(RE), mental health(MH), bodily pain(BP) score of SF-36 after 4 weeks(p<0.05), but there were no significant changes in vitality(VT), general health(GH) score of SF-36. Conclusion: This study suggests that Acupuncture(Eo-Hyeol Bang) and Bee-Venom Acupuncture can be applicable to improve symptoms in patients with chronic whiplash injury.

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수음실 잔향 시간변화에 따른 바닥충격음레벨 특성 - 잔향실을 중심으로 - (Floor Impact Sound Pressure Level Characteristics by the Change of Reverberation Time in a Reverberation Chamber)

  • 정정호;김정욱;정재군
    • 한국소음진동공학회논문집
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    • 제23권3호
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    • pp.274-281
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    • 2013
  • Field measurement method of heavy/soft impact sound pressure level which is regulated in JIS and ISO has been using in Korea, Japan and Canada. It is reported that heavy/soft impact sound pressure level was varied by the sound field condition of receiving room such as sound absorption power and room volume. In this study, it is checked that heavy/soft impact sound pressure level was affected by the receiving sound field condition. Rubber ball and bang machine sound pressure level was measured in the vertically connected reverberation chamber. In oder to check the effect of receiving sound field on heavy/soft impact sound pressure, sound absorption power was changed with polyester sound absorption blankets with air space and glass wool. The reverberation time at 1 kHz band was changed from 10 s to 0.2 s by sound absorption material. Rubber ball sound pressure level measured without sound absorption material was 58 dB in $L_{i,Fmax,AW}$, but the level was 46 dB with sound absorption treatment. From this result, it is confirmed that sound field correction method is needed in the heavy/soft impact sound pressure level measurement method using bang machine and rubber ball.

Comparative Cytogenetic Characteristics and Physical Mapping of the 17S and 5S Ribosomal DNAs between Atractylodes japonica Koidz. and Atractylodes macrocephala Koidz.

  • Bang, Kyong-Hwan;Koo, Dal-Hoe;Kim, Hong-Sig;Song, Beom-Heon;Cho, Yong-Gu;Cho, Joon-Hyeong;Bang, Jae-Wook
    • 한국약용작물학회지
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    • 제11권4호
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    • pp.311-315
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    • 2003
  • This study was carried out to compare chromosomal characteristics between Atractylodes japonica and A macrocephala. Cytogenetic analysis was conducted based on karyotype analysis and physical mapping using fluorescence in situ hybridization. As a result of karyotype analysis by feulgen staining, somatic chromosome numbers of A. japonica and A. macrocephala were 2n=24. The length. of the mitotic metaphase chromosomes of A. japonica ranged from $0.70\;to\;1.60{\mu}m$ with a total length. of $12.11{\mu}m$ and the homologous chromosome complement comprised six metacentrics, five submetacentrics and one subtelocentrics. On the other hand, the length of the mitotic metaphase chromosomes of A. macrocephala ranged from $0.90\;to\;2.35{\mu}m$ with a total length of $16.58{\mu}m$ and the homologous chromosome complement comprised seven metacentrics and five submetacentrics. The total length of A. japonica chromosomes was shorter than that of A. macrocephala, but A. japonica had one subtelocentrics (chromosomes 4) different from A. macrocepha1a. chromosomes. The F1SH technique using 17S and 5S rDNA was applied to metaphase chromosomes. The signals for 17S rDNA were detected on the telomeric regions of chromosomes 4 and 5 in both A japonica and A. macrocephala. The 5S rDNA signal was found in the short arm of chromosome 1.