• Title/Summary/Keyword: Sin

Search Result 16,517, Processing Time 0.041 seconds

Characterization of a new staphylococcal site-specific recombinase sin and genetic organization of its flanking region

  • Yong, Jun-Hyong;Kim, Young-Sun;Byeon, Woo-Hyeon
    • Journal of Microbiology
    • /
    • v.35 no.2
    • /
    • pp.92-96
    • /
    • 1997
  • A new site-specific recombinase sin, as a component of a putatie transposon has been cloned and its base sequence has been determined. The proposed sin shows a hish degree of homology with pI9789-sin and pSK1-sin. There is a large (16 bp) inverted repeat downstream of proposed sin and the postulate dhelix-turn-helix motif is located at the extreme C-terminus of the poposed Sin. The transposase gene (tnpA) and .betha.-lactamase gene (blaZ) are located upstream of sin and arsenate reductase gene (arsC) and arsenic efflux pump protein gene (ars B) are downstream. This genetic arrangement seems to be a part of a new putative transposon because there is no known transposon with a gene arrangement of tnpA-blaZ-sin-arsC.

  • PDF

Studies on the international exchange of Medical School of Sin-an (新安醫學) in Myung and Chung Dynasty (명(明)·청시대(淸時代) 신안의학(新安醫學)의 국제적(國際的) 교류(交流)에 관한 일고찰(一考察))

  • Lee, Min-ho;Ahn, Sang-woo
    • The Journal of Korean Medical History
    • /
    • v.22 no.2
    • /
    • pp.1-6
    • /
    • 2009
  • This paper analyzes the relationship of international exchange of Medical School of Sin-an (新安醫學) at the time of Myung and Chung Dynasty, which is one of the most famous regional traditional medicine. The internal reason for the active exchange of Medical School of Sin-an (新安醫學) throughout the ocean was that its major theories were mostly based on Confucianism, which was also the major current in Korea and Japan at the time. This leaded to active interchange between Medical School of Sin-an (新安醫學) of China and Japan and Korea. Secondly, the proliferation of Medical School of Sin-an (新安醫學) was achieved with great help from developing printing operations at the time. Also, the active operation of practitioners of Medical School of Sin-an (新安醫學) such as the attempt to advance to foreign countries along with the 徽州商人 offered an opportunity to introduce Medical School of Sin-an (新安醫學). The international traits of Medical School of Sin-an (新安醫學) can be easily proved by numerous quotes of its classics in many significant classics of Korea and Japan. The influence of Medical School of Sin-an (新安醫學) to Korea started from the Chosun Dynasty; the Treasured Mirror of Eastern Medicine "東醫寶鑑" of Huh Jun and "麻科會通" of 丁若鏞 are the few examples of classics of Korea with quotes of Medical School of Sin-an (新安醫學). The influence of Medical School of Sin-an (新安醫學) on Japanese medicine can be found much before, since Nanbeichao Dynasty. However, the time when many books were imported was during Myung and Chung Dynasty. Also, some of the classics of Medical School of Sin-an (新安醫學) mentioned in "醫籍考" remain only in Japan and not in China; this shows the active exchange between the two countries.

  • PDF

Pharmacognostical Studies on the "Se Sin" (세신의 생약학적 연구)

  • 박정희
    • Korean Journal of Plant Resources
    • /
    • v.9 no.2
    • /
    • pp.183-188
    • /
    • 1996
  • Chinese crude drug 'Se Sin'(細辛)has been used to cure headache, cough and expectorant. To the botanical origin of 'Se Sin', Zhong-yao-zhi(中葯志) reported Asarum heterotropoides var. mandshuricum. A. sieboldii and A. sieboldii var. seoulensis, and Zhong-yao-da-ci-dian(中葯大辭典) reported Asarum heterotropoides var. mandshuricum and A. sieboldii of Aristolochiaceae. In Korea, this crude drug has been used as a Korean folk remedy for tothache and aromatic. The botanical origin of 'Se Sin' is considered to be Asarum species of Aristolochoaceae. But there has no pharmacognostical confirmation on it. To clarify the botanical origin of 'Se Sin', we studied on the anatomical characteristics of Asarum species growing wildly in Korea i.e. A. maculatum, A. sieboldii, A. sieboldii var. seoulensis, and of 'Se Sin' from Korea on Korean market. Through our studies, the botanical origin of 'Se Sin' from Korea was proved to be whole plant of Asarum sieboldii and A. sieboldii var. seoulensis.

  • PDF

Study of the offects of moxibustion at the Sin-Soo and We-soo on HgCl2-Induced Acute Renal Failure in Rats (애구(艾灸)의 생체반응(生體反應)이 신부전(腎不全)에 미치는 영향(影響))

  • Hur, Duk-Soo;Park, In-Kyu;Lim, Jong-Kook
    • The Journal of Dong Guk Oriental Medicine
    • /
    • v.1
    • /
    • pp.237-249
    • /
    • 1992
  • In order to study tile effects of moxibustion on renal failure induced by $HgCl_2$ in rats aminal experiments were carry out. The moxibustion was treat into Sin-soo locus(VII23), We-soo locus(VII21) and Sin-soo + We-soo loci these loci were correspond to human body. Experimental group were divided into 4 groups : lontrol group, moxibustion groups treat on Sin-Soo and We-Soo, Sin-Soo + We-Soo group. The obtained results were as follows : 1. The concentration of serum sodium were inreased in all the groups, compared with those of the control group. Sin-Soo, We-Soo, Sin-Soo + We-Soo loci showed increased on the 1st and 3rd days. All three experimental groups showed a significant increased on 3rd day. 2. The concentration of serum potassium were decreased in all the group, compared with those of the control group. Sin-Soo, We-Soo showed a significant decrease on 3rd day. Sin-Soo + We-Soo showed a little decrease but do not significant decrease. 3. The levels of serum total protein were increased in all the group, compare with those of the control group. Sin-Soo, We-Soo show a significant increased or 3rd day. Sin-Soo + We-Soo do not showed a significant increased. 4. The levels of serum albumin were decreased in all the groups, compared with those of the control group. Sin-Soo, Sin-Soo + We-Soo showed a significant decrease on 3rd day. We-Soo does not showed a significant decrease. 5. The concentration of serum blood urea nitrogen were decreased in all the groups, compared with those of the control group. Sin-Soo, We-Soo, Sin-Soo + We-Soo showed a significant decrease on 3rd day. 6. The levels of serum alkaline phosphatase were decreased in all the group, compared with those of the control groups. Sin-Soo, We-Soo showed a significant decrease on 3rd day Sin-Soo + We-Soo not a significant decrease. In conclusion, the result of this study seemed to effect on the treatment for renal failure induced by $HgCl_2$.

  • PDF

Implementation of sin/cos Processor for Descriptor on SIFT (SIFT의 descriptor를 위한 sin/cos 프로세서의 구현)

  • Kim, Young-Jin;Lee, Hyon Soo
    • The Journal of the Korea Contents Association
    • /
    • v.13 no.4
    • /
    • pp.44-52
    • /
    • 2013
  • The SIFT algorithm is being actively researched for various image processing applications including video surveillance and autonomous vehicle navigation. The computation of sin/cos function is the most cost part needed in whole computational complexity and time for SIFT descriptor. In this paper, we implement a hardware to sin/cos function of descriptor on sift feature detection algorithm. The proposed Sin/Cosine processor is coded in Verilog and synthesized and simulated using Xilinx ISE 9.2i. The processor is mapped onto the device Spartan 2E (XC2S200E-PQ208-6). It consumes 149 slices, 233 LUTs and attains a maximum operation frequency of 60.01 MHz. As compared with the software realization, our FPGA circuit can achieve the speed improvement by 40 times in average.

Novel sinIR promoter for Bacillus subtilis DB104 recombinant protein expression system

  • Ji-Su Jun;Min-Joo Kim;KwangWon Hong
    • Journal of Applied Biological Chemistry
    • /
    • v.66
    • /
    • pp.128-137
    • /
    • 2023
  • Transcriptome analysis revealed that the sinR gene encoding a transition-state regulator of Bacillus pumilus, genetically close to B. subtilis, was expressed at high levels during growth. The sinR gene is the second gene of the sinIR operon consisting of three promoters and two structural genes in B. subtilis. This study used the sinIR promoter of B. subtilis DB104 to construct a recombinant protein expression system. First, the expression ability depending on the number of sinIR promoter was investigated using enhanced green fluorescent protein (eGFP). The expression level of eGFP was slightly higher when using two promoters (Psin2) than using original promoters. The Psin2 promoter was further engineered by modifying the repressor binding site and -35 and -10 regions. Shine-Dalgarno (SD) sequence of the sinI gene was modified to the consensus sequence. Finally, combining the engineered Psin2 promoter with the modified SD sequence increased the expression level of eGFP by about 13.4-fold over the original promoter. Our results suggest that the optimized sinIR promoter could be used as a novel tool for recombinant protein expression in B. subtilis.

Inhibition of Apoptosis by Nitric Oxide in MCF-7 Cells (유방암 세포(MCF-7)에서 nitric oxide에 의한 apoptosis 억제)

  • Kim, Kyun-Ha;Roh, Sang-Geun;Park, Hae-Ryun;Choi, Won-Chul
    • Journal of Life Science
    • /
    • v.19 no.2
    • /
    • pp.157-162
    • /
    • 2009
  • Nitric oxide (NO) is a diffusible, multifunctional and transcellular messenger that has been implicated in numerous physiological and pathological conditions. It has been reported that NO induced apoptosis in tumor cells, macrophage cells and inhibited apoptosis in normal cells, endothelial cells. To examine whether NO could induce apoptosis in MCF-7 cells, cells were treated with SIN-1 (3-morpholinosydnonimine), NO donor. Cell viability did not change in SIN-1 treated cells for 48 h and there was no significantly changes in cell cycle progression or growth pattern by FACS analysis. But p53 protein, an apoptosis-related factor, increased SIN-1 treatment time dependently. Bcl-2, MDM2 and p21 were also accumulated. Bax level did not change. A major role of inhibiting apoptosis by NO in MCF-7 cells, cobalt chloride ($CoCl_2$) was added to cells preincubated with SIN-1. Whereas $CoCl_2$ treated cells underwent apoptosis, for 24 h SIN-1 preincubated cells were not induced apoptosis. Inactivated proteins, MDM2 and bcl-2, by $CoCl_2$ levels also increased in SIN-1 pre-treated cells. These results suggested that SIN-1 blocked p53 by MDM2 activation and inhibited apoptosis by inducing p21 and bcl-2 expression.

SOME NEW IDENTITIES CONCERNING THE HORADAM SEQUENCE AND ITS COMPANION SEQUENCE

  • Keskin, Refik;Siar, Zafer
    • Communications of the Korean Mathematical Society
    • /
    • v.34 no.1
    • /
    • pp.1-16
    • /
    • 2019
  • Let a, b, P, and Q be real numbers with $PQ{\neq}0$ and $(a,b){\neq}(0,0)$. The Horadam sequence $\{W_n\}$ is defined by $W_0=a$, $W_1=b$ and $W_n=PW_{n-1}+QW_{n-2}$ for $n{\geq}2$. Let the sequence $\{X_n\}$ be defined by $X_n=W_{n+1}+QW_{n-1}$. In this study, we obtain some new identities between the Horadam sequence $\{W_n\}$ and the sequence $\{X_n\}$. By the help of these identities, we show that Diophantine equations such as $$x^2-Pxy-y^2={\pm}(b^2-Pab-a^2)(P^2+4),\\x^2-Pxy+y^2=-(b^2-Pab+a^2)(P^2-4),\\x^2-(P^2+4)y^2={\pm}4(b^2-Pab-a^2),$$ and $$x^2-(P^2-4)y^2=4(b^2-Pab+a^2)$$ have infinitely many integer solutions x and y, where a, b, and P are integers. Lastly, we make an application of the sequences $\{W_n\}$ and $\{X_n\}$ to trigonometric functions and get some new angle addition formulas such as $${\sin}\;r{\theta}\;{\sin}(m+n+r){\theta}={\sin}(m+r){\theta}\;{\sin}(n+r){\theta}-{\sin}\;m{\theta}\;{\sin}\;n{\theta},\\{\cos}\;r{\theta}\;{\cos}(m+n+r){\theta}={\cos}(m+r){\theta}\;{\cos}(n+r){\theta}-{\sin}\;m{\theta}\;{\sin}\;n{\theta},$$ and $${\cos}\;r{\theta}\;{\sin}(m+n){\theta}={\cos}(n+r){\theta}\;{\sin}\;m{\theta}+{\cos}(m-r){\theta}\;{\sin}\;n{\theta}$$.

A Study on The Jeong(精), Sin(神) and Eumyang Changes(陰陽變化) in "Hwangjenaegyeong(黃帝內經)" ("황제내경(黃帝內經)"의 청(精), 신(神)과 음양변화(陰陽變化)에 대한 고찰(考察))

  • Baik, You-Sang;Yoon, Eun-Kyung
    • Journal of Korean Medical classics
    • /
    • v.24 no.1
    • /
    • pp.47-55
    • /
    • 2011
  • Jeong(精) and Sin(神) have very close relation in "Hwangjenaegyeong(黃帝內經)", and jeong(精) is base of sin(神). Jeong is the origin of life force, Sin can be manifested through the Yin-yang inter conversion of Jeong, on the other hand, Jeong can be created through the same conversion of Sin. The Yin-yang inter conversion of Jeong or Sin, means the inclination of Taegeuk(太極) to Unification after division, in this process, life force and creative power are made.