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Heterolytic cleavage of the C-C bond of acetonitrile with simple monomeric Cu(Ⅱ) complex

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Heterolytic cleavage of the C-C bond of acetonitrile with si...

2012年中西部地区无机化学化工学术研讨会

作者： Chun-Ying Duan~* state key laboratory of Fine Chemicals,Dalian university of Technology,Dalian,116023,P.R. china,

The cleavage of C-C bonds by organometallic complexes has remained an area of challenge and intrigue since the advent of transition-metal-mediated synthetic *** reduction of Cuion with cyanide(CN) to form stable cyano...

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Structural parameterization and functional prediction of antigenic polypeptome sequences with biological activity through quantitative sequence-activity models (QSAM) by molecular electronegativity edge-distance vector (VMED)

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Science china(Life Sciences) 2007年第5期50卷 706-716页

作者： LI ZhiLiang1,2, WU ShiRong1,2, CHEN ZeCong1,2, YE Nancy1,2, YANG ShengXi1,2, LIAO ChunYang1,2, ZHANG MengJun1,2,3, YANG Li1,2, MEI Hu1,2,4, YANG Yan1,2, ZHAO Na1,2, ZHOU Yuan1,2, ZHOU Ping1,2, XIONG Qing1,2, XU Hong1,2, LIU ShuShen1,2, LING ZiHua1,2, CHEN Gang1,2,4 & LI GenRong1,2 1 College of Chemistry and Chemical engineering/key laboratory for Chemobiomedical Science and engineering under Chongqing Municipality, College of Life Science and Biological engineering/key laboratory for Biomechanics and Tissue engineering under Ministry of Education, Chongqing university, Chongqing 400044, china 2.state key laboratory for Chemobiosensors and Chemobiometrics under MOST at Hunan university, Changsha 410012, china 3 Department of Medical Analysis/PLA Center of Bioinformatics Immunology, Surgeon Third university, Chongqing 400031, china 4 Technology Centre for Life Sciences, Singapore Polytechnic, 500 Dover Road, Singapore 139651, Singapore College of Chemistry and Chemical engineering/key laboratory for Chemobiomedical Science and engineering under Chongqing Municipality College of Life Science and Biological Engineering/Key Laboratory for Biomechanics and Tissue Engineering under Ministry of Education Chongqing University Chongqing 400044 China state key laboratory for Chemobiosensors and Chemobiometrics under MOST at Hunan university Changsha 410012 China College of Chemistry and Chemical engineering/key laboratory for Chemobiomedical Science and engineering under Chongqing Municipality College of Life Science and Biological Engineering/Key Laboratory for Biomechanics and Tissue Engineering under Ministry of Education Chongqing University Chongqing 400044 China state key laboratory for Chemobiosensors and Chemobiometrics under MOST at Hunan university Changsha 410012 China Department of Medical Analysis/PLA Center of Bioinformatics Immunology Surgeon Third University Chongqing 400031 China College of Chemistry and Chemical engineering/key laboratory for Chemobiomedical Science and engineering under Chongqing Municipality College of Life Science and Biological Engineering/Key Laboratory for Biomechanics and Tissue Engineering under Ministry of Education Chongqing University Chongqing 400044 China state key laboratory for Chemobiosensors and Chemobiometrics under MOST at Hunan university Changsha 410012 China Technology Centre for Life Sciences Singapore Polytechnic 500 Dover Road Singapore 139651 Singapore

Only from the primary structures of peptides, a new set of descriptors called the molecular electro-negativity edge-distance vector (VMED) was proposed and applied to describing and characterizing the molecular structures of oligopeptides and polypeptides, based on the electronegativity of each atom or electronic charge index (ECI) of atomic clusters and the bonding distance between atom-pairs. Here, the molecular structures of antigenic polypeptides were well expressed in order to propose the auto-mated technique for the computerized identification of helper T lymphocyte (Th) epitopes. Furthermore, a modified MED vector was proposed from the primary structures of polypeptides, based on the ECI and the relative bonding distance of the fundamental skeleton groups. The side-chains of each amino acid were here treated as a pseudo-atom. The developed VMED was easy to calculate and able to work. Some quantitative model was established for 28 immunogenic or antigenic polypeptides (AGPP) with 14 (1― 14) Ad and 14 other restricted activities assigned as "1"(+) and "0"(-), respectively. The latter comprised 6 Ab(15-20), 3 Ak(21-23), 2 Ek(24-26), 2 H-2k(27 and 28) restricted sequences. Good results were obtained with 90% correct classification (only 2 wrong ones for 20 training samples) and 100% correct prediction(none wrong for 8 testing samples); while con-trastively 100% correct classification (none wrong for 20 training samples) and 88% correct classification (1 wrong for 8 testing samples). Both stochastic samplings and cross valida-tions were performed to demonstrate good performance. The described method may also be suitable for estimation and prediction of classes I and II for major histocompatibility an-tigen (MHC) epitope of human. It will be useful in immune identification and recognition of pro-teins and genes and in the design and devel-opment of subunit vaccines. Several quantitative structure activity relationship (QSAR) models were developed for various oligop

关键词： molecular electronegativity distance-edge vector (VMED), antigenic polypeptide (AGPP) sequences, bioactive oligopeptide (BAOP) chains, quantitative sequence-activity models (QSAM), theoretically computational descriptors (TCD)

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The effects of positive emotion on working memory:researches from ERPS

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The effects of positive emotion on working memory:researches...

中国神经科学学会第九届全国学术会议暨第五次会员代表大会

作者： Yun-Ying DONG~1,Xin GAO~1,Ren-Lai ZHOU~(1,2,3,*),Pan LIU~2 1 key laboratory of Child Development and Learning Science(Southeast university),Ministry of Education,Nanjing 210096,china 2.state key laboratory of Cognitive Neuroscience and Learning,Beijing Normal university,Beijing 100875,china 3 Beijing key Lab of Applied Experimental Psychology,Beijing Normal university,Beijing 100875,china

＜正＞Objective Working memory is divided into separable subsystems,spatial working memory and verbal working memory involving manipulation and retention of visuospatial and verbal information *** present study is to assess the infuences of positive emotion on spatial and verbal working *** We applied the modified DMS paradigm（"picture - target - delay - probe" 4 stages for an experimental unit） with the positive and neutral picture from the International Affective Picture System（IAPS;Lang,Bradley ＆ Cuthbert,1999）,using ERP technology in healthy ***（a） Positive emotion impairs low load spatial working memory task, not high load,which is revealed by the lower P3 and slow wave in the maintaining phase,and the higher of early LPP, late LPP,and slow wave in the matching phase in the low load spatial working memory task,（b） Positive emotion in a certain extent facilitates both high and low load verbal working memory,which is revealed by the shorter task reaction time,and the higher mean amplitude of P2 in the decoding phase,the higher P3 and slow wave in the maintaining phase,and the lower LPP in the matching *** ERP components respectively reflected attention allocation, attention maintenance,and executive control processes of working *** This research finds the selective effects of positive emotion on working memory,and the interaction with working memory task load,which could primarily demonstrate the potential mechanism of how positive emotion affects working memory.

关键词： positive emotion spatial working memory verbal working memory task load

Naturally-formed objects categorized as artifacts:Effect of objects' functional depictions

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Science Bulletin 2010年第Z1期 398-403页

作者： SUN YuHao1,2, WANG Zhe1, LIU Ye2 & FU XiaoLan21Department of Psychology, Zhejiang Sci-Tech university, Hangzhou 310018, china 2state key laboratory of Brain and Cognitive Science, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, china

Past research has identified a variety of factors that influence cognitive processing of artifact concepts, but few experiments tested possible interactive patterns among these factors. Using a natural language depiction based free naming task, we explored how an object's function and its history (information about how an object was formed by natural force) interact to affect categorization judgment in a 2×2 betweensubjects experiment (N = 169). The study had two key findings: (i) Without presenting an object's function, presenting the history of its natural formation increased subjects' tendency to name the object under the "natural" domain and decreased their tendency to name it under the "artifact" domain; (ii) once we presented the depiction of an object's function, the effect of history presentation on categorization disappeared:Subjects in both conditions strongly preferred naming objects as artifacts. In summary, presenting depiction of an object's function inhibited the effect of history on object categorization. Current findings suggest that an object's function plays a fundamental role in the cognitive processing of artifact concepts.

关键词： artifacts categorization design history function

An efficient method to obtain axenic culture of Alexandrtum tamarense----PSP-producing dinoflagellate

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An efficient method to obtain axenic culture of Alexandrtum ...

2006中国微生物学会第九次全国会员代表大会暨学术年会

作者： ZHENG TianLing, SU JianQiang, YANG XiaoRu, HONG HuaSheng School of Life Sciences, MOE of key laboratory for Cell Biology and Tumor Cell engineering, Xiamen university, Xiamen, Fujian, china, 361005 state key laboratory of Marine Environmental Sciences, Xiamen university, Xiamen, Fujian, china, 361005

The fact that species of harmful algae maintained in laboratory harbor an complex bacterial flora increases the difficulties in the study on the mechanisms of bacteria-alga interaction. An efficient method to remove bacteria from a laboratory cultures of marine dinoflagellate Alexandrium tamarense was presented in this paper. The alga was subjected to repeated washing, lysozyme/SDS and antibiotics with a

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基于SOPC的高性能WSN节点设计与实现

水电能源科学 2009年第3期27卷 171-173,218页

作者：孟令军李惠琼王宏涛中北大学电子测试技术国家重点实验室山西太原030051 中国科学院电子学研究所传感技术国家重点实验室北京100080

提出利用SOPC技术实现高性能节点系统研究,并与传统的CPU编程方式相比,采用C语言与VHDL协同设计、SOPC软核负责完成协议部分,利用VHDL设计的辅助模块实现数据计算及处理。结果表明,SOPC技术执行多位乘法、移位、比较、多项累加等方面具... 详细信息

提出利用SOPC技术实现高性能节点系统研究,并与传统的CPU编程方式相比,采用C语言与VHDL协同设计、SOPC软核负责完成协议部分,利用VHDL设计的辅助模块实现数据计算及处理。结果表明,SOPC技术执行多位乘法、移位、比较、多项累加等方面具有速度优势,CPU与这些模块协同工作可完成复杂的数字信号处理滤波、FFT分析等,可直接移植C程序算法,从而缩短项目开发时间、降低系统开发成本;基于SOPC的高性能节点适合处理语音、振动、冲击动态信号,可作为整个网络或内部簇控制节点。

关键词： SOPC WSN节点 IIR滤波低功耗设计嵌入式

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A Novel Digital Audio Watermarking Scheme in the Wavelet Domain

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A Novel Digital Audio Watermarking Scheme in the Wavelet Dom...

The 1st Chinese Conference on Trusted Computing and Information Security

作者： Xiang-yang, YANG Hong-ying, ZHAO Hong School of Computer and Information Technique, Liaoning Normal university, Dalian 116029, Liaoning,china state key laboratory of Information Security, Institute of software of Chinese Academy of Sciences, Beijing 100039, china

＜正＞ We present a novel quantization-based digital audio watermarking scheme in wavelet domain. By quantizing a host audio’ s wavelet coefficients （Integer Lifting Wavelet Transform ） and utilizing the characteristics of human auditory system （HAS）, the gray image is embedded using our watermarking method. Experimental results show that the proposed watermarking scheme is inaudible and robust against various signal processing such as noising adding, lossy compression, low pass filtering, re-sampling, and re-quantifying.

关键词： digital audio watermarking lifting wavelet transform human auditory system chaotic sequence quantization

The Influence of Cysteine on the Bioavailability of Cadmium to Phaeodactylum Tricornutum

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The Influence of Cysteine on the Bioavailability of Cadmium ...

第三十五届国际光谱会议

作者： D.F.Si~1 L.M.Yang~(*1) H.Yan~1 Q.Q.Wang~(1,2) 1 Department of Chemistry & the MOE key laboratory of Modern Analytical Sciences,Xiamen university,Xiamen 361005,china 2.state key laboratory of Marine Environmental Science,Xiamen university,Xiamen 361005,china

＜正＞Phytochelatins （PCs）,which is activated by heavy metal ions and uses glutathione as a substrate,has become a widespread detoxification mechanism developed by plants[1]. The marine diatom Phaeodactylum tricornutum has the ability to produce PCs when it is exposed to Cd[2].Cd-γ-glutamyl peptides complexes,in which the peptide chelates Cd

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All polymer asymmetric Mach-Zehnder interferometer waveguide sensor by imprinting bonding and laser polishing

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Chinese Physics B 2017年第12期26卷 332-338页

作者：刘豫孙月衣云骥田亮曹悦陈长鸣孙小强张大明 state key laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University Changchun 130012 China

We present an all polymer asymmetric Mach-Zehnder interferometer （AMZI） waveguide sensor based on imprinting bonding and laser polishing method. The fabrication methods are compatible with high accuracy waveguide sensing structure. The rectangle waveguide structure of this sensor has three sensing surfaces contacting the test media, and its sensing accuracy can be increased 5 times compared with that of one surface sensing structure. An AMZI device structure is designed. The single mode condition, the length of the sensing arm, and the length deviation between the sensing arm and the reference arm are optimized. The length deviation is optimized to be 19.8 μm in a refractive index range between 1.470 and 1.545. We fabricate the AMZI waveguide by lithography and wet etching method. The imprinting bonding and laser polishing method is proposed and investigated. The insertion loss is between-80.36 dB and-10.63 dB. The average and linear sensitivity are 768.1 dB/RIU and 548.95 dB/RIU, respectively. And the average and linear detection resolution of the sensor are 1.3010-6 RIU （RIU：refractive index unit） and 1.8210-5 RIU, respectively. This sensor has a fast and cost-effective fabrication process which can be used in the cases of requiring portability and disposability.

关键词： integrated optics devices polymer waveguides sensors microstructure fabrication

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