• Title/Summary/Keyword: cis

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Comparison of Parametric and Bootstrap Method in Bioequivalence Test

  • Ahn, Byung-Jin;Yim, Dong-Seok
    • The Korean Journal of Physiology and Pharmacology
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    • v.13 no.5
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    • pp.367-371
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    • 2009
  • The estimation of 90% parametric confidence intervals (CIs) of mean AUC and Cmax ratios in bioequivalence (BE) tests are based upon the assumption that formulation effects in log-transformed data are normally distributed. To compare the parametric CIs with those obtained from nonparametric methods we performed repeated estimation of bootstrap-resampled datasets. The AUC and Cmax values from 3 archived datasets were used. BE tests on 1,000 resampled data sets from each archived dataset were performed using SAS (Enterprise Guide Ver.3). Bootstrap nonparametric 90% CIs of formulation effects were then compared with the parametric 90% CIs of the original datasets. The 90% CIs of formulation effects estimated from the 3 archived datasets were slightly different from nonparametric 90% CIs obtained from BE tests on resampled datasets. Histograms and density curves of formulation effects obtained from resampled datasets were similar to those of normal distribution. However, in 2 of 3 resampled log (AUC) datasets, the estimates of formulation effects did not follow the Gaussian distribution. Bias-corrected and accelerated (BCa) CIs, one of the nonparametric CIs of formulation effects, shifted outside the parametric 90% CIs of the archived datasets in these 2 non-normally distributed resampled log (AUC) datasets. Currently, the 80~125% rule based upon the parametric 90% CIs is widely accepted under the assumption of normally distributed formulation effects in log-transformed data. However, nonparametric CIs may be a better choice when data do not follow this assumption.

Conversion of Coordinated Sulfur Atom into Sulfoxide Group via Oxidation Reaction of Metal Complexes of Tetradentates and Sulfur Amino Acids (네자리 리간드-황아미노산 금속착물의 산화반응에 의한 배위된 황원자의 sulfoxide 원자단으로의 전환)

  • Sung Sil Lee;Peter Fu;Sung Rack Choi;Moo Jin Jun
    • Journal of the Korean Chemical Society
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    • v.33 no.5
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    • pp.516-521
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    • 1989
  • Reaction between the $N_2O_2-type$ tetradentate ligand, ethylenediamine-N,N'-di-S-${\alpha}$-isobutylacetic acid (SS-emiba) and $RhCl_3{\cdot}3H_2O$ has yielded ${\Delta}-s-cis-\;and\;{\wedge}-uns-cis-[Rh(SS-eniba)Cl_2]-$. ${\Delta}-s-cis-[Rh(SS-eniba)Cl_2]^-$ has been utilized to react with S-methyl-L-cystcine(Smc) to give ${\Delta}-s-cis-[Rh(SS-eniba(Smc)]^+$. The oxidation of ${\Delta}-s-cis-[Rh(SS-eniba(Smc)]^+$ using $H_2O_2$ has produced ${\Delta}-s-cis-[Rh(SS-eniba)(Smc-o)]^+$, in which the coordinated sulfur has been converted into the sulfoxide group. In a separate series of experiments the S-methyl-L-cysteine is oxidized by $H_2O_2$ to give S-methyl-L-cysteine sulfoxide, which is then coordinated to ${\Delta}-s-cis-[Rh(SS-eniba)Cl2]^-$ to make the standard complet of ${\Delta}-s-cis-[Rh(SS-eniba)(Sme-o)]+$ for comparison with the complex obtained from the oxidation of ${\Delta}-s-cis-[Rh(SS-eniba)(Smc)]^+\;by\;H_2O_2.$

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Changes of Diterpenoids Levels under Different Environmental Condition Tobacco Leaves (담배의 생육단계 및 환경조건에 따른 Diterpenoids 함량 변화)

  • 금완수;정윤화;최상주;조명조
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.41 no.6
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    • pp.692-697
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    • 1996
  • This experiment was conducted to determine the influences of growth stage, stalk position and growth environment on duvatrienediols(DVT-diols) and cis-abienol production in Nicotiana tabacum L. The leaves of plants at transplanting stage contained very small amount of duvatrienediols and cis-abienol. Comparing leaves on different stalk position at flowering stage, upper and middle leaves contained more DVT-diols and cis-abienol than lower leaves. Plants grown under controlled environmental room at 3$0^{\circ}C$ contained more DVT-diols and cis-abienols than room at 18$^{\circ}C$, $25^{\circ}C$ and glass room. Tobacco plant grown under field condition produced lower levels of duvatrienediols and cis-abienol contents than glass room-grown plants. The amounts of duvatrienediols and cis-abienol of tobacco leaves significantly decreased after rain under field conditions.

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Effects of cis-Dichlorodiammineplatinum (II) on the Epiphyseal Plate of the Tibia in the Albino Rat (cis-Dichlorodiammineplatinum (II)이 흰쥐 경골의 골단연골판에 미치는 영향)

  • Kim, Jong-Kwan;Kim, Won-Kyu;Chung, Ho-Sam
    • Applied Microscopy
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    • v.26 no.2
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    • pp.197-206
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    • 1996
  • cis-Dichlorodiammineplatinum (II) (cis-Platin) inhibits the proliferation and growth of the tumor cells by way of inhibiting DNA and protein synthesis of the cancer cells. Although cis-Platin is very effective antitumor drug, it also produces many other side effects. Thus the author has studied the effects of cis-Platin on the proximal epiphyseal plate in the tibia of the rat. The results were as follows: In the chondrocyte of the proliferative zone, sacculated, and fragmented cisternae of rough endoplasmic reticulum, some mitochondria with disorganized mitochondrial cristae and distorted procollagens were observed, and in the matrix some large matrix granules and dispersed collagen fibrils were revealed on the 1st, 3rd day and 1st week group of cis-Platin treated rats. In the chondrocyte of the proliferative zone of cis-Platin treated rats on the 2nd and 3rd week group, parallely arranged rough endoplasmic reticulum and many procollagens were shown, and in the matrix a number of large matrix granules and many small matrical granules as well as collagen fibrils were revealed. Consequently it is suggested that though cis-Platin induces the degenerative changes of the chondrocyte resulting in components of the cartilagenous matrix, these toxic effects are regressed with time.

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Studies on Combined Usage of Combined Preparation of Crude Drugs and Anti-neoplastic Drugs (I) -Alleviative Effect of Combined Usage of Gamisamryungbaekchool-San and cis-Platin on the Side Actions of cis-Platin- (생약복합제제(生藥複合製劑)와 항암제(抗癌劑)의 병용투여(倂用投與)에 관한 연구(硏究) (제1보)(第1報) -가미삼령백출산(加味蔘笭白朮散)과 cis-Platin 병용투여(倂用投與)에 의한 부작용(副作用) 경감(輕減) 효과(效果)-)

  • Kim, Nam-Jae;Hong, Nam-Doo;Cho, Chong-Kwan;Kim, Jin-Sik;Baek, Seung-Hak
    • Korean Journal of Pharmacognosy
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    • v.22 no.3
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    • pp.197-206
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    • 1991
  • The water extract of Gamisamryungbaekchool-San increased the lifespan of mice implanted intraperitoneally with sarcoma 180. Significant depression of lethal toxicity of cis-platin $(45{\mu}M/kg,\;s.c)$ and renal toxicity (indicated by an increase in blood urea nitrogen value and creatinine value) of cis-platin $(35{\mu}M/kg,\;s.c)$ were observed in mice and rats treated with Gamisamryungbaekchool-San. RBC and WBC were significantly decreased in rats treated with cis-platin, and significant depression of hematologic toxicities of cis-platin $(35{\mu}M/kg,\;s.c)$ in rats treated with Gamisamryungbaekchool-San. After all, alleviative effect of the side actions of cis-platin was acknowledged by combined usage of Gamisamryungbaekchool-San and cis-platin.

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Achievable Sum Rate of NOMA with Negatively-Correlated Information Sources

  • Chung, Kyuhyuk
    • International journal of advanced smart convergence
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    • v.10 no.1
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    • pp.75-81
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    • 2021
  • As the number of connected smart devices and applications increases explosively, the existing orthogonal multiple access (OMA) techniques have become insufficient to accommodate mobile traffic, such as artificial intelligence (AI) and the internet of things (IoT). Fortunately, non-orthogonal multiple access (NOMA) in the fifth generation (5G) mobile networks has been regarded as a promising solution, owing to increased spectral efficiency and massive connectivity. In this paper, we investigate the achievable data rate for non-orthogonal multiple access (NOMA) with negatively-correlated information sources (CIS). For this, based on the linear transformation of independent random variables (RV), we derive the closed-form expressions for the achievable data rates of NOMA with negatively-CIS. Then it is shown that the achievable data rate of the negatively-CIS NOMA increases for the stronger channel user, whereas the achievable data rate of the negatively-CIS NOMA decreases for the weaker channel user, compared to that of the positively-CIS NOMA for the stronger or weaker channel users, respectively. We also show that the sum rate of the negatively-CIS NOMA is larger than that of the positively-CIS NOMA. As a result, the negatively-CIS could be more efficient than the positively-CIS, when we transmit CIS over 5G NOMA networks.

CIS CODES OVER 𝔽4

  • Kim, Hyun Jin
    • Korean Journal of Mathematics
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    • v.28 no.2
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    • pp.285-294
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    • 2020
  • We study the complementary information set codes (for short, CIS codes) over 𝔽4. They are strongly connected to correlation-immune functions over 𝔽4. Also the class of CIS codes includes the self-dual codes. We find a construction method of CIS codes over 𝔽4 and a criterion for checking equivalence of CIS codes over 𝔽4. We complete the classification of all inequivalent CIS codes of length up to 8 over 𝔽4.

Detection of Organic Halide by Using cis,cis-1,2,3,4-Tetraphenylbutadiene thin Film (cis,cis-1,2,3,4-Teteraphenylbutadiene 박막 필름을 이용한 유기 할로겐 화합물 감지)

  • Park, Jaehyun
    • Journal of Integrative Natural Science
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    • v.3 no.4
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    • pp.215-218
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    • 2010
  • cis,cis-1,2,3,4-Tetraphenylbutadiene has been synthesized and its optical properties are investigated by using UV-Vis absorption and fluorescence spectroscopy. Thin films of tetraphenylbutadiene prepared from thin layer chromatography(TLC) displays strong luminescence and used for the detection of vapor of organic halide. Tetraphenylbutadiene shows dramatic quenching photoluminescence under exposure of chloroform vapor.

Burkholderia cepacia Strain G4 (pHG-2) Accumulates cis-3-Methyl-3,5-cyclohexadien-1,2-diol While Growing on Toluene

  • Hur, Hor-Gil
    • Journal of Applied Biological Chemistry
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    • v.43 no.1
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    • pp.44-48
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    • 2000
  • Burkholderia cepacia strain G4 (pHG-2) containing toluene 2-monooxygenase and toluene dioxygenase, was able to grow on toluene and accumulate cis-3-methyl-3,5-cyclohexadien-1,2-diol (cis-toluene dihydrodiol) in the liquid culture. The cis-toluene dihydrodiol produced was identical to the authentic compound, as judged through mass spectrometry and nuclear magnetic resonance analysis. Our results indicate that pHG-2 provides an economical means to produce chemically-important chiral synthons while growing on toluene.

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비진공 코팅 방식에 의한 CIGS 박막 태양전지 개발

  • An, Se-Jin
    • Proceedings of the Korean Vacuum Society Conference
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    • 2010.08a
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    • pp.28-28
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    • 2010
  • 칼코파라이트 구조의CuInSe2 (CIS) 계 화합물은 직접천이형 반도체로서 높은 광흡수 계수($1{\times}10^5\;cm^{-1}$)와 밴드갭 조절의 용이성 및 열적 안정성 등으로 인해 고효율 박막 태양전지용 광흡수층 재료로 많은 관심을 끌고 있다. CIS 계 물질에 속하는 $Cu(InGa)Se_2$ (CIGS) 태양전지의 경우 박막 태양전지 중 세계 최고 효율인 20%를 달성한 바 있다. 그러나 이러한 우수한 성능에도 불구하고 CIS 계 박막 증착시 동시증발장치나 진공 스퍼터링 장치와 같은 고가 진공장비를 사용해야 한다는 점이 CIS 박막 태양전지 상용화의 걸림돌이 되고 있는데, 이는 장비 특성 상공정단가가 높고 대면적화가 어렵기 때문이다. 따라서 기술개발 이후의 상용화 단계를 고려할 때 CIS 박막 제조 공정단가를 획기적으로 낮추면서도 대면적화가 용이한 신공정 개발이 필수적이다. 이러한 관점에서 용액 및 나노 입자 전구체를 비진공 방식으로 코팅하여 CIS 광흡수층을 제조하는 기술이 CIS 태양전지의 저가화 및 대면적화를 가능케 하는 차세대 기술로 인식되고 있다. 본 세미나에서는 다양한 형태의 용액 또는 입자 전구체를 이용한 CIS 광흡수층 제조 기술개발 현황 및 각 기술별 특징을 소개하고자 한다.

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