• Title/Summary/Keyword: reconstitution

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보교과 수업을 위한 Gagne의 9가지 수업 사태를 통한 기존 수업모형 재구성 및 적용 모색 (Existing instruction model reconstitution and application search through nine instruction situation of Gagne for information curriculum instruction)

  • 강호;한선관
    • 한국정보교육학회:학술대회논문집
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    • 한국정보교육학회 2004년도 하계학술대회
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    • pp.539-547
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    • 2004
  • 21세기 정보사회에서 정보에 대한 중요성은 언급하지 않더라도 모두 알고 있다. 정보에 대한 중요함을 모두들 인식하고 있지만 정보교과에 대한 연구는 활발하나 타 교과에 비해 미비한 것이 사실이다. 본 논문은 구체적인 학습전략을 제시하고 있는 Gagne의 9가지 수업 사태를 통해 기존 수업모형들을 정보교과 수업에 필요한 효과적인 수업 모형으로 재구성하고 어떤 모형에 어떤 수업을 적용해야할지 살펴 볼 것이다.

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Effects of t-Butyl Hydrogen Peroxide on the Maxi-K Channels of Rat Brain

  • Shin, Jung-Hoon;Suh, Chang-Kook
    • 한국생물물리학회:학술대회논문집
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    • 한국생물물리학회 1998년도 학술발표회
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    • pp.33-33
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    • 1998
  • Oxidation and reduction of amino acid residues in proteins affect their functional properties. Especially, redox modulation of ion channel activities has been reported in number of ion channel proteins. In this study, we investigated the effects of tertiary-butyl hydrogen peroxide (tBHP) on the large-conductance Ca$\^$2+/ -activated K$\^$+/(Maxi-K) channel of rat brain using lipid bilayer reconstitution technique.(omitted)

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옥수수 유식물 조직에서 분리한 막 단백질과 Phosphatidylcholine의 재조합 (Reconstitution of Membrane Proteins from Corn Seedlings with Phosphatidylcholine)

  • 오승은
    • Journal of Plant Biology
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    • 제33권4호
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    • pp.321-323
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    • 1990
  • Membrane proteins isolated from the coleoptile and mesocotyl tissues of corn seedlings were solubilized with Triton X100 and reconstituted with phosphatidylcholine at 2$0^{\circ}C$. The proteoliposomes were incubated and proton uptake into the vesicles was measured with a spectrophotometer. Addition of ATP to the reaction mixture was found to result in an active accumulation of proton into the vesicles. These results indicate that the preparation contains tightly bound phosphatidylcholine vesicles with reconstituted H+ -ATPase from the plant cell membranes.

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액상형 보툴리눔 독소와 임상적 활용 (Practical Issue of Botulinum Toxin use Liquid Type, Storage and Reuse)

  • 손희영
    • 대한후두음성언어의학회지
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    • 제30권1호
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    • pp.9-11
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    • 2019
  • Botulinum toxin (BTX) has been widely used to treat muscle spasms in many voice disorders. Most commercially available forms of BTX require reconstitution before use, which may increase the risk of contamination and requires careful titration. Recently, a liquid-type BTX type A (BTX-A) has been developed, which should simplify the procedure and enhance its efficacy. In this session, I will discuss about the differences of BTX-A from existing types and the practical issues associated with it.

Renal Precursor Cell Transplantation Using Biodegradable Polymer Scaffolds

  • KIM , SANG-SOO;PARK, HEUNG-JAE;HAN, JOUNG-HO;PARK, MIN-SUN;PARK, MOON-HYANG;SONG, KANG-WON;JOO, KWAN-JOONG;CHOI, CHA-YONG;KIM, BYUNG-SOO
    • Journal of Microbiology and Biotechnology
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    • 제15권1호
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    • pp.105-111
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    • 2005
  • End-stage renal disease is a fatal and devastating disease that is caused by progressive and irreversible loss of functioning nephrons in the kidney. Dialysis and renal transplantation are the common treatments at present, but these treatments have severe limitations. The present study investigated the possibility of reconstructing renal tissues by transplantation of renal precursor cells to replace the current treatments for end-stage renal disease. Embryonic renal precursor cells, freshly isolated from metanephroi of rat fetus at day 15 post-gestation, were seeded on biodegradable polymer scaffolds and transplanted into peritoneal cavities of athymic mice for three weeks. Histologic sections stained with hematoxylin & eosin and periodic acid-Schiff revealed the formation of primitive glomeruli, tubules, and blood vessels, suggesting the potential of embryonic renal precursor cells to reconstitute renal tissues. Immunohistochemical staining for proliferating cell nuclear antigen, a marker of proliferating cells, showed intensive nuclear expression in the regenerated renal structures, suggesting renal tissue reconstitution by transplanted embryonic renal precursor cells. This study demonstrates the reconstitution of renal tissue in vivo by transplanting renal precursor cells with biodegradable polymer scaffolds, which could be utilized as a new method for partial or full restoration of renal structure and function in the treatment of end-stage renal disease.

Optimization of 1D 1H Quantitative NMR (Nuclear Magnetic Resonance) Conditions for Polar Metabolites in Meat

  • Kim, Hyun Cheol;Ko, Yoon-Joo;Kim, Minsu;Choe, Juhui;Yong, Hae In;Jo, Cheorun
    • 한국축산식품학회지
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    • 제39권1호
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    • pp.1-12
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    • 2019
  • The objective of this study was to establish an optimized 1D $^1H$ quantitative nuclear magnetic resonance (qNMR) analytical method for analyzing polar metabolites in meat. Three extraction solutions [0.6 M perchloric acid, 10 mM phosphate buffer, water/methanol (1:1)], three reconstitution buffers [20 mM 3-morpholinopropane-1-sulfonic acid, 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid, phosphate buffer], and two pulse programs (zg30, noesypr1d) were evaluated. Extraction with 0.6 M perchloric acid and 20 mM phosphate resulted in a stable baseline and no additional overlap for quantifying polar metabolites in chicken breast. In qNMR analysis, zg30 pulse program (without water-suppression) showed smaller relative standard deviation (RSD) and faster running time than noesypr1d (water-suppression). High-performance liquid chromatography was compared with qNMR analyses to validate accuracy. The zg30 pulse program showed good accuracy and lower RSD. The optimized qNMR method was able to apply for beef and pork samples. Thus, an optimized 1D $^1H$ qNMR method for meat metabolomics was established.

Mycobacterium avium Complex Infection-Related Immune Reconstitution Inflammatory Syndrome Mimicking Lymphoma in an Human Immunodeficiency Virus-Infected Patient

  • Sohn, Sungmin;Shi, Hye Jin;Wang, Sung Ho;Lee, Sang Ki;Park, So Yeon;Lee, Jin Seo;Eom, Joong Sik
    • Infection and chemotherapy
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    • 제50권4호
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    • pp.350-356
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    • 2018
  • In acquired immunodeficiency syndrome (AIDS) patients, immune reconstitution inflammatory syndrome (IRIS) due to Mycobacterium avium complex (MAC) infection is one of the most difficult IRIS types to manage. We report an unusual case of MAC-associated IRIS. At first the patient was diagnosed human immunodeficiency virus (HIV) infection after he was admitted with pneumocystis pneumonia. After starting antiretroviral therapy he presented unmasked IRIS with MAC infection. Next, he was hospitalized with continuous loose stools and new-onset fever. Investigation included computed tomography (CT), which showed homogeneous enhancement and enlargement of the lymph nodes (LN), elevation of ferritin (>1,650 ng/mL) and lactate dehydrogenase (306 IU/L) levels, and F- fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT) scan, which showed increased FDG uptake. These findings were highly indicative of lymphoma. We performed laparoscopic biopsy of the mesenteric LN, and the biopsy culture grew MAC. So we made a diagnosis of MAC-associated. Therefore, IRIS must be considered as a possible diagnosis when AIDS patients develop new symptoms or exhibit exacerbations of existing symptoms. Furthermore the biopsies should be conducted.

Effect of Ginseng Saponin on Gap Junction Channel Reconstituted with Connexin 32

  • Hong, Eun-Jung;Huh, Keun;Rhee, Seung-Keun
    • Archives of Pharmacal Research
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    • 제19권4호
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    • pp.264-268
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    • 1996
  • Panax-ginseng saponin has been known to exert various pharmacological effects on cellular metabolism. This study was performed to determine the effect of ginseng saponin on gap junction channel-mediated intercellular communication, using an established in vitro system of reconstituted gap junction channels. Gap junction channels are a specialized plasma membrane fraction, which are permeable to relatively large water-soluble molecules. The sucrose permeable property of reconstituted gap junction channels was completely inhibited with 0.1 % (w/v) of ginseng saponin. We also compared the effect of ginseng saponin with that of Triton X-100, a nonionic detergent, on the same system. Triton X-100 showed significantly different effect on sucrose-permeability of gap junction channel from that was affected by ginseng saponin. The structures of liposomes containing gap junction channels was significantly destroyed by Triton X-100.

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