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( Jia Cheng ),( Na Sun ),( Xin Zhao ),( Li Niu ),( Mei Qin Song ),( Yao Gui Sun ),( Jun Bing Jiang ),( Jian Hua Guo2 ),( Yuan Sheng Bai ),( Jun Ping He ),( Hong Quan Li ) 한국미생물 · 생명공학회 2013 Journal of microbiology and biotechnology Vol.23 No.8
Seventeen compounds derived from traditional Chinese medicines (TCMs) were tested for their antiviral activity against porcine reproductive and respiratory syndrome virus (PRRSV) in vitro. Visualization with the cytopathologic effect (CPE) assay and the 3-(4, 5-dimethyithiazol- 2-yl)-2,5-diphenyltetrazolium bromide test were used to determine the 50% cytotoxic concentration (CC50) and 50% effective concentration (EC50) in cultured Marc-145 cells. Among the tested compounds, chlorogenic acid and scutellarin showed potential anti-PRRSV activity. The EC50 values were 270.8 ± 14.6 μg/ml and 28.21 ± 26.0 μg/ml and the selectivity indexes were >5.54 and 35.5, respectively. The time-of-addition and virucidal assay indicated that the anti-PRRSV activity of the two compounds could be due to their inhibiting the early stage of virus replication and/or inactivating the virus directly. The inhibition of the virus attachment was not observed in the adsorption inhibition assay. The inhibition ratios of chlorogenic acid and scutellarin were, respectively, 90.8% and 61.1% at the maximum non-cytotoxic concentrations. The results have provided a basis for further exploration of their antiviral properties and mechanisms in vivo. We believe that the chlorogenic acid and scutellarin have a great potential to be developed as new anti-PRRSV drugs for clinical application.
Achievement and challenge, the nationality policies of China
Guo Jia-ji 한국사회학회 2003 한국사회학회 기타간행물 Vol.- No.-
Given the circumstances of fifty-six nationalities living together and their culture diversity, Chinese government made nationality policies, such as nationality equality, nationality comity, nationality autonomy and so on. Fully implementing these policies made sure of stability and development of minorities of China over 50 years. However, the system was made under planned economy and implemented by means of central government’s power. So under the circumstances of China’s entry into WTO and market economy, these policies will face huge challenge for going on. How to make a new system of policy which matches market economy and WTO orders is a crucial problem waiting us to resolve.
Context Effects in Lexical Ambiguity Processing in Chinese: A Meta-Analysis
Jia Guo,Hua Shu,Ping Li 서울대학교 인지과학연구소 2007 Journal of Cognitive Science Vol.8 No.1
Context effects in lexical ambiguity processing have been extensively examined in various languages including Chinese. A meta-analysis was performed on seven studies conducted in Chinese in order to determine how the Chinese data as a whole agree or disagree with previous findings in other languages. All seven studies reviewed in our analysis used the priming technique to determine the degree of activation of alternative meanings of an ambiguous word in sentence context. The analysis reveals a small but consistent effect of context on lexical access: the contextually appropriate interpretation of a word consistently shows greater priming than the inappropriate interpretation. We further show that sentence contexts interact closely with the meaning frequency of an ambiguous word. We also identify variables in these studies such as length of context and timing of presentation that could influence the strength of the context effect.
A Parallel Method of Deep Packet Inspection based on Message-Passing Interface
Jia-xing Qu,Guo-yin Zhang,Xi-zhong Wang,Jia-hui Liu,Da-hua Song 보안공학연구지원센터 2015 International Journal of Security and Its Applicat Vol.9 No.12
With the increasing number of cores in multicore processors, it is challenging task how to take advantage of powerful parallel computing for the deep packet inspection. This paper introduces the deep packet inspection with a parallel method which exploits the message-passing interface (MPI). The parallel procedure includes the master thread and the slave thread. The master assigns the data packet to the slave. The slave executes the string matching with rules for inspecting. Both the master and the slave communicate by using MPI functions. The experimental results show that the parallel method is suitable for the trend of the increasing number of cores in multicore processors. Moreover, when the number of threads is equal to the number of cores in multicore processors, the performance arrives at the maximum throughput.
Jia Yang,Jiajia Hao,Chen Tang,Yaxin Guo,Mingxin Guo,Zhipeng Li,Shuzheng Liu,Hui Yu,Gang Qin,Qiang Chen 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.116 No.-
Although many hydrogels have been applied to wearable sensors, it is still challenging to simultaneouslyrealize hydrogels with optical transparency, superior mechanical properties, excellent sensing performance,and anti-freezing by using inexpensive raw materials and an easy preparation process. Herein,using ethylene glycol/H2O (EG/ H2O) as a solvent, poly(vinyl alcohol)/EG organohydrogel (PVA/EGOHG) was prepared by a simple heating and frozen-thawing method. Owing to the multifunctionalityof EG (i.e., physical cross-linker, anti-freezer and co-solvent), PVA/EG OHG demonstrated excellent integratedproperties, including high strength, high toughness, and anti-freezing performances. Besides, PVA/EG OHG also showed low friction, self-cleaning, and frost resistance properties. After the introduction ofLiCl, ionically conductive PVA/EG @LiCl organohydrogel was served as a self-cleaning strain sensor, whichcould be long-term stable to detect the motions of human under room and low temperatures. The studyprovides to further understanding of the organohydrogel, which will help us design next-generationhigh-performance organohydrogels.
Modified GMDH networks for oilfield production prediction
Jia Guo,Wei Huang,Qiong Mao,Xudong Wang,Xinying Wang,Tao Song 한국자원공학회 2018 Geosystem engineering Vol.21 No.4
The self-organizing Group Method of Data Handling (GMDH) functional network is effective in predicting oilfield production. During operation the division of data sample depending on artificial classification cannot lead to global optimum in great probability and the variables are probably eliminated early in the iterative process in traditional GMDH algorithm. Recent years, GMDH model has been improved through many artificial intelligent models, but few people take the optimization of the model structure into account. In this paper, different training and testing set grouping and the effects of variables transmission were studied. The modified GMDH algorithm was optimized using the original variables preservation method and the random sample method, which was applied to the oilfield production forecasting simulation. The results of the modified GMDH algorithm, the traditional GMDH algorithm, ANNs and the empirical equations for predicting annual oil production were compared. The simulative results indicated that the modified GMDH model was the best tool for data-fitting with lowest error (RMSE = 13.9440, MAPE = 0.1121 and SI = 0.0378) and highest accuracy (R = 0.9984).
Jia, Wenbin,Zhu, Xiaoping,Zhang, Wei,Cheng, Jianbo,Guo, Cuihua,Jia, Zhihai Asian Australasian Association of Animal Productio 2009 Animal Bioscience Vol.22 No.12
This experiment was designed to evaluate the effects of source of supplemental zinc (Zn) on performance, nutrient digestibility and plasma mineral profile in Cashmere goats during the cashmere fiber growing period. Twenty-seven Liao Ning Cashmere wether goats (9-10 month of age; initial BW = 19.31${\pm}$0.32 kg) were fed a basal diet (containing 22.3 mg Zn/kg DM) with no supplemental Zn (control) or 20 mg of supplemental Zn/kg of DM from Zn sulfate ($ZnSO_{4}$) or Zn methionine (ZnMet) for 60 days including a 10-day metabolism trial. Average daily gain (ADG) (p<0.05) and gain:feed (G/F) (p<0.05) were increased by Zn supplementation, but no differences were noted between Zn sources (p>0.05). The length and diameter of cashmere fiber did not differ among treatments (p>0.05). Zn supplementation had no influence on digestibility of DM, CP, EE and NDF (p>0.05). However, ADF digestibility in the group supplemented with ZnMet was significantly higher than in other treatments (p<0.05). Plasma Zn was increased (p<0.05) and Cu tended to be decreased (p = 0.057) by Zn supplementation, but no differences were found between Zn sources (p>0.05). Plasma alkaline phosphatase activity (AKP) was improved by Zn supplementation (p<0.05) and was higher in the $ZnSO_{4}$ than the ZnMet group (p<0.05). Zn retention was increased (p<0.05) and apparent absorption rate was decreased (p<0.05) by Zn supplementation. The results indicate that supplementation of 20 mg Zn/kg DM either as $ZnSO_{4}$ or ZnMet in the basal diet containing 22.3 mg Zn/kg DM can improve growth performance in Cashmere goats, and effectiveness of the two sources is similar on performance measurements.
Jia Guo,왕명현 한국원예학회 2011 Horticulture, Environment, and Biotechnology Vol.52 No.1
A dehydration responsive element binding (DREB) gene, designated LeDREB2, was isolated from tomato. It was classified as an A-2 group member of the DREB family. LeDREB2 is a single copy gene in the tomato genome, and it was strongly expressed in young leaves and roots but weakly expressed in mature leaves and shoots. Transcripts of the LeDREB2 genes were induced by various environmental stresses such as drought and cold. Expression analysis demonstrated that various oxidative stresses (e.g., salt (NaCl), abscisic acid (ABA), hydrogen peroxide (H2O2), methyl viologen (MV)) could induce the transcripts of LeDREB2 gene after application of time courses treatments except ABA. These results indicate that the LeDREB2 gene is a DREB transcription factor, which may play a role in both abiotic and oxidative stress responses.
Agrobacterium-mediated Transformation of Rice 'Ilmibyeo' using HPT Selection Maker Gene
Guo, Jia,Cho, Joon-Hyeong,Jo, Hye-Jeong,Seong, Eun-Soo,Wang, Myeong-Hyeon The Plant Resources Society of Korea 2007 한국자원식물학회지 Vol.20 No.3
This study was conducted to produce the transgenic plant of rice. We obtained Agrobacterium AGL1 harbaring pCambial 300 vector with HPT gene. We carried out PCR analysis of 22 ea putative transgenic rice to investigate transformed lines. The 3 ea transgenic lines were detected insertion of HPT gene. Transgenic lines selected from PCR analysis were performed by Southern blot. From Southern blot, we obtained that two transgenic lines detected single band. We are going to study the method improving of cotransformation as well as transformation efficiency in rice.