• Title/Summary/Keyword: Cds

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Complete genome sequence of Lactiplantibacillus plantarum ST, a potential probiotic strain with antibacterial properties

  • Yang, Shujuan;Deng, Chenglin;Li, Yao;Li, Weicheng;Wu, Qiong;Sun, Zhihong;Cao, Zhenhui;Lin, Qiuye
    • Journal of Animal Science and Technology
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    • v.64 no.1
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    • pp.183-186
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    • 2022
  • Lactiplantibacillus plantarum (L. plantarum) ST was isolated from De'ang pickled tea in Yunnan Province, China. The genomes of strain ST were fully sequenced and analyzed using the PacBio RS II sequencing system. Our previous study has shown that L. plantarum ST is a potential probiotic strain. It had strong tolerance in the simulated artificial gastrointestinal tract, and in the antagonism tests, this strain showed strong antibacterial activity. Therefore, as a probiotic, it may be used in animal breeding. L. plantarum ST genome was composed of 1 circular chromosome and 7 plasmids. The length of the whole genome was 3320817 bp, and the annular chromosome size was 3058984 bp, guanine + cytosine (G ± C) content (%) was 44.76%, which contained 2945 protein-coding sequences (CDS). This study will contribute to a further comprehensive understanding of L. Plantarum ST at the genomic level and provide a theoretical basis for its future application in animal breeding.

Sequential Polyadenylation to Enable Alternative mRNA 3' End Formation

  • Yajing Hao;Ting Cai;Chang Liu;Xuan Zhang;Xiang-Dong Fu
    • Molecules and Cells
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    • v.46 no.1
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    • pp.57-64
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    • 2023
  • In eukaryotic cells, a key RNA processing step to generate mature mRNA is the coupled reaction for cleavage and polyadenylation (CPA) at the 3' end of individual transcripts. Many transcripts are alternatively polyadenylated (APA) to produce mRNAs with different 3' ends that may either alter protein coding sequence (CDS-APA) or create different lengths of 3'UTR (tandem-APA). As the CPA reaction is intimately associated with transcriptional termination, it has been widely assumed that APA is regulated cotranscriptionally. Isoforms terminated at different regions may have distinct RNA stability under different conditions, thus altering the ratio of APA isoforms. Such differential impacts on different isoforms have been considered as post-transcriptional APA, but strictly speaking, this can only be considered "apparent" APA, as the choice is not made during the CPA reaction. Interestingly, a recent study reveals sequential APA as a new mechanism for post-transcriptional APA. This minireview will focus on this new mechanism to provide insights into various documented regulatory paradigms.

A DQN-based Two-Stage Scheduling Method for Real-Time Large-Scale EVs Charging Service

  • Tianyang Li;Yingnan Han;Xiaolong Li
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.18 no.3
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    • pp.551-569
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    • 2024
  • With the rapid development of electric vehicles (EVs) industry, EV charging service becomes more and more important. Especially, in the case of suddenly drop of air temperature or open holidays that large-scale EVs seeking for charging devices (CDs) in a short time. In such scenario, inefficient EV charging scheduling algorithm might lead to a bad service quality, for example, long queueing times for EVs and unreasonable idling time for charging devices. To deal with this issue, this paper propose a Deep-Q-Network (DQN) based two-stage scheduling method for the large-scale EVs charging service. Fine-grained states with two delicate neural networks are proposed to optimize the sequencing of EVs and charging station (CS) arrangement. Two efficient algorithms are presented to obtain the optimal EVs charging scheduling scheme for large-scale EVs charging demand. Three case studies show the superiority of our proposal, in terms of a high service quality (minimized average queuing time of EVs and maximized charging performance at both EV and CS sides) and achieve greater scheduling efficiency. The code and data are available at THE CODE AND DATA.

Condition and Effect of Sex Education Program for Korean Middle School Students (중학생의 성교육 실태 및 프로그램 효과분석)

  • Moon, In-Ok;Youn, Young-Ok;Kim, Ro-Eul
    • The Journal of Korean Society for School & Community Health Education
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    • v.8 no.1
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    • pp.1-11
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    • 2007
  • Objectives: School must provide the proper sex education to students, thereby, the students for have right standards of sexuality and preventing from sexual crimes. This study conducted to identify the effectiveness and students' satisfaction level on Sex education program for middle school students prepared by the Ministry of Education and Human Resources. Methods: The sample size of the study was 644 students(458 female students and 186 male students) in middle school. A self reporting type of questionnaire survey was conducted from May 2 through May 27, 2005. Collected data were processed using SPSSwin 12.0; The data were analysed through t-test, stepwise multiple regression analysis. Results: Lectures and audiovisual materials were mostly used for sex education for students. Many students were satisfied with the program of physical and sexual organ development, pregnancy, contraceptive methods and sexual abuse. Many students wanted to study more on courtship, love, and marriage. The programs which the students did not understand well were sexually transmitted diseases, pregnancy and mass media and sex. Forty six percentage of the students reported that they were satisfied with the education program. Thirty three percentage of the students said that they were not satisfied with the program. The students who had earlier menstruation experience and the students whose academic achievement were higher were more satisfied with sex education program (P<.05). The students who were satisfied with the sex education CD prepared by the ministry of education were more satisfied with sex education program. (P<.001). When the CDs were appropriately used, the students were more satisfied with the education program (P<.05). The sound and pictures in the CD did not much affect the students. Audiovisual programs were more effective than lectures.

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A Tool for Mapping and Measuring Sustainable Capacity Development: Concepts, Methods and Contexts (균형적 능력개발의 매핑 및 측정을 위한 도구 - 개념, 방법론 및 배경 -)

  • Liou, Jae-Ik
    • Journal of the Korean Association of Geographic Information Studies
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    • v.9 no.4
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    • pp.165-175
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    • 2006
  • The discussion about capacity development (CD) has been spotlighted as significant drivers for sustainable development in recent years. Multi-dimensional natures of capacities would lead to various definitions of CD in international institutes and organizations. CD is perceived as an endogeneous process to improve actionable learning and knowledge, but most of core capacities still remain abstract notion and might be unreliable in sustainable development (SD). The paper first explicates international perspectives of CD in association with SD. An agent-based model is especially proposed to portray more details of CD. It illuminates the role of assets (or capitals, resources) in agents to impact on ingredients of CDs that are drivers or enablers for improvement of SD. A definition of sustainable capacity development is firstly articulated in international society and its conceptual framework is also creatively designed to assist concerned international organizations. The paper concludes by proposing practical spatial asset mapping linking to agent-based organizational capacity as a tool for measuring sustainable capacity development.

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A Method for Evaluating Online News Value and Personalization (온라인 뉴스 가치 평가 및 개인화 기법)

  • Choi, Kwang Sun;Kim, Soo Dong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.16 no.12
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    • pp.8195-8209
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    • 2015
  • The purpose of this paper is to propose a method for recommendation and personalization of important news articles based on evaluating news value. Evaluation of news is the approach by which editors select news articles for cover-story in traditional offline news papers area. For this, my study proposes a suite of methods to select and personalize a set of news based on evaluating news articles, not just on the personal preference for them. The aforementioned the value of news articles including social impact, novelty, relevance to each audience, and human interest, all of which have been factorized in many previous studies, is a main concept for a procedural and structural application methodology deduced in this study. After a comparative case study with other online news services, it was shown that my research provides more effective way to select important news articles in terms of user satisfaction than others.

NMR Spectroscopic Analysis on the Chiral Recognition of Noradrenaline by β-Cyclodextrin ( β-CD) and Carboxymethyl- β-cyclodextrin (CM- β-CD)

  • Lee, Sang-Hoo;Yi, Dong-Heui;Jung, Seung-Ho
    • Bulletin of the Korean Chemical Society
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    • v.25 no.2
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    • pp.216-220
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    • 2004
  • ${\beta}$-CD and CM- ${\beta}$-CD as chiral NMR shift agents were used to resolve the enantiomers of noradrenaline (NA). The stoichiometry of each complex formed between the CDs and the enantiomers of NA was found to be 1 : 1 through the continuous variation plots. The binding constants (K) of the complexes were determined from $^1H$ NMR titration curves. This result indicated that both ${\beta}$-CD and CM- ${\beta}$-CD formed the complexes with the S(+)-NA more preferentially than its R(-)-enantiomer. The K values for the complexes with ${\beta}$-CD ($K_{S(+)}$ = 537 $M^{-1}$ and $K_{R(-)}$ = 516 $M^{-1}$ was larger than those with CM- ${\beta}$-CD ($K_{S(+)}$ = 435 $M^{-1}$ and $K_{R(-)}$ = 313 $M^{-1}$), however, enantioselectivity (${\alpha}$) of S(+)- and R(-)-NA to CM- ${\beta}$-CD ( ${\alpha}$ = 1.38) was larger than that to ${\beta}$-CD ( ${\alpha}$ = 1.04), indicating that CM- ${\beta}$-CD was the better chiral NMR solvating agents for the recognition of the enantiomers of NA. Two dimensional rotating frame nuclear Overhauser enhancement spectroscopy (ROESY) experiments were also performed to explain the binding properties in terms of spatial fitting of the NA molecule into the macrocyclic cavities.

Low Power 31.6 pJ/step Successive Approximation Direct Capacitance-to-Digital Converter (저전력 31.6 pJ/step 축차 근사형 용량-디지털 직접 변환 IC)

  • Ko, Youngwoon;Kim, Hyungsup;Moon, Youngjin;Lee, Byuncheol;Ko, Hyoungho
    • Journal of Sensor Science and Technology
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    • v.27 no.2
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    • pp.93-98
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    • 2018
  • In this paper, an energy-efficient 11.49-bit successive approximation register (SAR) capacitance-to-digital converter (CDC) for capacitive sensors with a figure of merit (FoM) of 31.6 pJ/conversion-step is presented. The CDC employs a SAR algorithm to obtain low power consumption and a simplified structure. The proposed circuit uses a capacitive sensing amplifier (CSA) and a dynamic latch comparator to achieve parasitic capacitance-insensitive operation. The CSA adopts a correlated double sampling (CDS) technique to reduce flicker (1/f) noise to achieve low-noise characteristics. The SAR algorithm is implemented in dual operating mode, using an 8-bit coarse programmable capacitor array in the capacitance-domain and an 8-bit R-2R digital-to-analog converter (DAC) in the charge-domain. The proposed CDC achieves a wide input capacitance range of 29.4 pF and a high resolution of 0.449 fF. The CDC is fabricated in a $0.18-{\mu}m$ 1P6M complementary metal-oxide-semiconductor (CMOS) process with an active area of 0.55 mm2. The total power consumption of the CDC is $86.4{\mu}W$ with a 1.8-V supply. The SAR CDC achieves a measured 11.49-bit resolution within a conversion time of 1.025 ms and an energy-efficiency FoM of 31.6 pJ/step.

An Efficient Meta-Search Scheme for Comparison Shopping Sites (비교 쇼핑 사이트들에 대한 효율적인 메타검색 기법)

  • Cho, Kang-Eui;Cho, Seong-Je
    • Information Systems Review
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    • v.5 no.1
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    • pp.97-111
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    • 2003
  • With the spread of electronic commerce on the Internet, comparison shopping sites with agent technique are getting popular for the best shopping. However, most consumers are still spending much time to search for the best price through the sites because each of them may show a different price even for the same goods or a site does not show any information about specific goods. Additionally, the search for the best price of the goods like books and CDs may cause the system to be overloaded and the response time to be long due to an on-line real-time search. In this paper, we have designed and implemented a meta-search system for comparison shopping sites with a local database and memory cache to resolve the above problems. The proposed system collects and maintains the price information of popular goods among the comparison shopping sites using several software agents. The experimental results show that our system is an efficient meta-comparison shopping engine and reduces the latency of the response time with little overhead.

Solubility and Physicochemical Stability of Ondansetron Hydrochloride in Various Vehicles (용제 중 염산온단세트론의 용해성 및 안정성)

  • Gwak, Hye-Sun;Oh, Ik-Sang;Chun, In-Koo
    • Journal of Pharmaceutical Investigation
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    • v.33 no.1
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    • pp.45-49
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    • 2003
  • The solubility and stability of ondansetron hydrochloride (OS) in various vehicles were determined. The effect of cyclodextrins (CD) on the solubility of OS in water was determined by equilibrium solubility method. The solubility of OS at $32^{\circ}C$ increased in the rank order of isopropyl myristate (IPM) < propylene glycol laurate (PGL) ${\ll}$ propylene glycol monolaurate < propylene glycol monocaprylate (PGMC) < poly(ethylene glycol) 400 < diethylene glycol mono ethyl ether (DGME) < ethanol < poly(ethylene glycol) 300 < water (36.1 mg/ml) ${\ll}$ propylene glycol (PG) (283 mg/ml). The addition of PG or DGME to non-aqueous vehicles such as IPM, PGL and PGMC markedly increased the solubility of OS. The addition of CDs in water increased the solubility. Apparent stability constant for the CD complexation with OS was calculated to be $25.5\;M^{-1}$ for $2-hydroxypropyl-{\beta}-CD\;(2HP{\beta}CD)$. Twenty mM ${\beta}-CD$, 69.4 mM sulfobutyl ether ${\beta}-CD$ and 115.4 mM $2HP{\beta}CD$ increased the aqueous solubilty of OS 1.27, 2.18 and 1.85 times, respectively. OS was stable in buffered aqueous solution (pH 5.0). However, OS was relatively unstable in non-aqueous vehicles in the order of PG