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Remote Operation on Quantum State Among Multiparty

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Communications in Theoretical Physics 2007年第5X期48卷 837-840页

作者： chen Ai-xi DENG li WU Qing-Ping Department of Applied Physics East China Jiaotong University Nanchang 330013 China

In this paper, a scheme is proposed for performing remote operation on quantum state among multiparty. We use three-particle GHZ state as quantum channels to prepare a state operator, which describes quantum correlation between states and operations. Based on the special characteristic of the state operator, observers can perform unitary operation on a system that is away from observers. Our studies show this process is deterministic. We further consider remote operation among N spatially distributed observers, and the results show the successful realization of remote operation needs collective participation of N parties, that is, there exists strong correlation among multiparty. In addition, we investigate the case in which observers share a three-particle W state as quantum channels to perform remote operation and studies find this process is probabilistic.

关键词： remote operation entangled state state operator

Synthesis of Thieno[3,4-b]pyrazine-based Alternating Conjugated Polymers via Direct Arylation for Near-infrared OLED Applications

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Chinese Journal of Polymer Science 2022年第2期40卷 138-146页

作者： Ze-Wang He Qiang Zhang chen-xi li Hong-Ting Han Yan Lu School of Materials Science&Engineering Tianjin Key Laboratory for Photoelectric Materials and DevicesKey Laboratory of Display Materials&Photoelectric DevicesMinistry of EducationTianjin University of TechnologyTianjin 300384China College of Chemistry Nankai UniversityTianjin 300071China

Three alternating conjugated polymers,namely PFTP,PCz TP,and PSi TP,which combine a thieno[3,4-b]pyrazine(TP)unit with different benzene-based donor units such as 9,9-dioctylfluorene,9-heptadecyl-9H-carbazole and 5,5-dioctyl-5H-dibenzo[b,d]silole,were synthesized in good yield(>85%)and high molecular weight up to Mn=5.82×10^(4) via direct arylation polymerization(DAr P).All the resultant polymers exhibit moderate bandgap of about 1.80 e V and strong deep red/near-infrared emitting in the solid *** them,the PSi TP-based electroluminescence(EL)devices with an architecture of ITO/PEDOT:PSS/PTAA/emitting layer/TPBi/li F/Al give the best performance with a maximum luminance of 2543 cd/m^(2) at 478 m A/cm^(2).This work expands the application scope of high-performance conjugated polymers which can be synthesized by DAr P.

关键词： Thieno[3 4-b]pyrazine Alternating D-A structure Direct arylation polymerization Conjugated polymer Organic light-emitting diodes

The first facile total synthesis of natural (3R,4R,6S)-3,4-epoxybisabola-7(14),10-dien-2-one

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Chinese Chemical Letters 2009年第9期20卷 1017-1018页

作者： Zhi Yong Tang chen xi Zhang li Jing Fang Yu lin li State Key Laboratory of Applied Organic Chemistry and Institute of Organic Chemistry Lanzhou University Lanzhou 730000 China

3,4-Epoxybisabola-7（14）,10-dien-2-one, a natural sesquiterpoind, was first synthesized from （-）-carvone through 7 steps, in an overall yield of 35.9%. The key step was the allylation and then a substrate-directable epoxidation was committed successfully. 2009 Zhi Yong Tang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关键词： Alkylation Epoxidation Synthesis

An enantioselective formal synthesis of (-)-thujopsene

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Chinese Chemical Letters 2008年第3期19卷 256-258页

作者： chen xi Zhang li Jing Fang Fu Qiang Bi Yu lin li State Key Laboratory of Applied Organic Chemistry and Institute of Organic Chemistry Lanzhou University Lanzhou 730000 China

Dihydromayurone （3）, a key intermediate to synthesize （-）-thujopsene （1）, was efficient enantiocontrolled synthesized from （＋）-dihydrocarvone through 9 steps in an overall yield of 19.3%. The key step was the... 详细信息

关键词： Thujopsene Dihydromayurone Synthesis Dihydrocarvone Simmons-Smith reaction

Synthesis of Highly Regioregular, Head-to-Tail Coupled Poly(3-octylesterthiophene) via C―H/C―H Coupling Polycondensation

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Chinese Journal of Polymer Science 2018年第9期36卷 1019-1026页

作者： Qiang Zhang Yue-Feng li Lu-Di Deng lin-lin Zhao chen-xi li Yan Lu Tianjin Key Laboratory for Photoelectric Materials and Devices School of Materials Science & Engineering Tianjin University of Technology Key Laboratory of Functional Polymer Materials State Key Laboratory of Elemento-Organic Chemistry College of Chemistry Nankai University

Highly regioregular, head-to-tail coupled poly（3-octylesterthiophene） was synthesized by the Pd-catalysed oxidative C--H/C--H coupling polycondensation. The regioregularity of polymer products was confirmed by the 1H-NMR technique. Furthermore, the effects of various reaction factors including polymerization temperature, solvents and catalysts etc. on the yield, molecular weight and structural regioregularity of the resultant polymers were systematically studied. The optical, electrochemical and crystallization properties of the resultant P3OET with different HT regioregularities in solution and film state were studied by UV-Vis and fluorescent spectroscopy, cyclic voltammetry and X-ray diffraction （XRD）, resepectively.

关键词： C--H/C--H coupling polymerization Pd catalysed oxidative Poly(thiophene)s

STUDIES ON THE REACTION OF d-ACETAMIDCCINNAMAMIDE WITH TRIS(DIETHYLAMINO)PHOSPHINE

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Chinese Chemical Letters 1992年第3期3卷 183-184页

作者： chen xi li Ru Yu chen Institute of Elemento-organic Chemistry Nankai UniversityTianjin300071

d-Acetamidocinnamamide do not react with P(OMe)_3, with P(NEt_2)_3 they give rise to 2-methyl-4-hydroxy-5-d-[bis(diethylamino)phosphoryl] benzyl *** pathway is studied for the formation of Ⅰ. The two intermediates(Ⅱ... 详细信息

关键词： STUDIES ON THE REACTION OF d-ACETAMIDCCINNAMAMIDE WITH TRIS DIETHYLAMINO)PHOSPHINE Rev

Metabolic effects of testosterone replacement therapy on hypogonadal men with type 2 diabetes mellitus： a systematic review and meta-analysis of randomized controlled trials

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Asian Journal of Andrology 2014年第1期16卷 146-152页

作者： xiang Cai Ye Tian Tao Wu chen-xi Cao Hong li Kun-Jie Wang Department of Urology West China Hospital Sichuan University Chengdu China

This systematic review was aimed at assessing the metabolic effects of testosterone replacement therapy （TRT） on hypogonadal men with type 2 diabetes mellitus （T2DM）. A literature search was performed using the Cochrane library, EMBASE and PubMed. Only randomized controlled trials （RCTs） were included in the meta-analysis. Two reviewers retrieved articles and evaluated the study quality using an appropriate scoring method. Outcomes including glucose metabolism, lipid parameters, body fat and blood pressure were pooled using a random effects model and tested for heterogeneity. We used the Cochrane Collaboration＇s Review Manager 5.2 software for statistical analysis. Five RCTs including 351 participants with a mean follow-up time of 6.5months were identified that strictly met our eligibility criteria. A meta-analysis of the extractable data showed that testosterone reduced fasting plasma glucose levels （mean difference （MD）. -1.10; 95% confidence interval （CI）（-1.88, -0.31））, fasting serum insulin levels （MD： -2.73; 95% CI （-3.62, -1.84））, HbAlc % （MD.. -0.87; 95% CI （-1.32, -0.42）） and triglyceride levels （MD： -0.35; 95% CI （-0.62, -0.07））. The testosterone and control groups demonstrated no significant difference for other outcomes. In conclusion, we found that TRT can improve glycemic control and decrease triglyceride levels of hypogonadal men with T2DM. Considering the limited number of participants and the confounding factors in our systematic review; additional large, well-designed RCTs are needed to address the metabolic effects of TRT and its long-term influence on hypogonadal men with T2DM.

关键词： humans hypogonadism male testosterone type 2 diabetes mellitus

Therapeutic effect of regulating autophagy in spinal cord injury: a network meta-analysis of direct and indirect comparisons

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Neural Regeneration Research 2020年第6期15卷 1120-1132页

作者： Duo Zhang Di Zhu Fang Wang Ji-Chao Zhu Xu Zhai Yuan Yuan chen-xi li Department of Orthopedics Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Department of Orthopedics Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anShaanxi ProvinceChina Department of Emergency Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anShaanxi ProvinceChina Department of Spinal Cord Injury Rehabilitation China Rehabilitation Research CenterBeijingChina

Objective:An increasing number of studies indicate that autophagy plays an important role in the pathogenesis of spinal cord injury,and that regulating autophagy can enhance recovery from spinal cord ***,the effect of regulating autophagy and whether autophagy is detrimental or beneficial after spinal cord injury remain ***,in this study we evaluated the effects of autophagy regulation on spinal cord injury in rats by direct and indirect comparison,in an effort to provide a basis for further *** source:Relevant literature published from inception to February 1,2018 were included by searching Wanfang,CNKI,Web of Science,MEDliNE(OvidSP),PubMed and Google Scholar in English and *** keywords included"autophagy","spinal cord injury",and"rat".Data selection:The literature included in vivo experimental studies on autophagy regulation in the treatment of spinal cord injury(including intervention pre-and post-spinal cord injury).Meta-analyses were conducted at different time points to compare the therapeutic effects of promoting or inhibiting autophagy,and subgroup analyses were also *** measure:Basso,Beattie,and Bresnahan ***:Of the 622 studies,33 studies of median quality were included in the ***,Beattie,and Bresnahan scores were higher at 1 day(MD=1.80,95%CI:0.81-2.79,P=0.0004),3 days(MD=0.92,95%CI:0.72-1.13,Pline group).Basso,Beattie,and Bresnahan scores were higher at 1 day(MD=6.48,95%CI:5.83-7.13,P<0.00001),2 weeks(MD=2.43,95%CI:0.79-4.07,P=0.004),3 weeks(MD=2.96,95%CI:0.09-5.84,P=0.04)and 4 weeks(MD=4.41,95%CI:1.08-7.75,P=0.01)after spinal cord injury with downregulation of autophagy compared w

关键词： autophagy Basso,Beattie,and Bresnahan scores indirect comparison meta-analysis nerve regeneration neural regeneration neurological function rat models regulation spinal cord injury strategy analysis

Small RNA existed in commercial reverse transcriptase： primary evidence of functional small RNAs

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Protein & Cell 2015年第1期6卷 1-5页

作者： Jie Xu xi chen Donghai li Qun chen Zhen Zhou Dongxia Hou Jin Wang Qipeng Zhang Ke Zen chen-Yu Zhang Jiangsu Engineering Research Center for microRNA Biology and Biotechnology State Key Laboratory of Pharmaceutical Biotechnology School of Life Sciences Nanjing University Nanjing 210093 China

SMALL RNA IN REVERSE TRANSCRIPTASE： TOO SMALL TO BE FOUND Significant background in no-template or no-primer RT-PCR is frequently noted. However, the underlying mechanism is still unclear. In this issue, Jie Xu and colleagues reveal that the com- mercial reverse transcriptases contain small RNAs. In AMV reverse transcriptase, they detected microRNAs derived from the virus host chick or other birds. This surprising finding at least partially explains the high background in some AMV reverse transcriptases based RT-PCR.

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