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The pleiotropic vasoprotective functions of high density lipoproteins(HDL) 被引量:3
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作者 Guilaine Boyce Emily Button +1 位作者 Sonja Soo Cheryl Wellington 《The Journal of Biomedical Research》 CAS CSCD 2018年第3期164-182,共19页
The pleiotropic functions of circulating high density lipoprotein(HDL) on peripheral vascular health are well established. HDL plays a pivotal role in reverse cholesterol transport and is also known to suppress infl... The pleiotropic functions of circulating high density lipoprotein(HDL) on peripheral vascular health are well established. HDL plays a pivotal role in reverse cholesterol transport and is also known to suppress inflammation,endothelial activation and apoptosis in peripheral vessels. Although not expressed in the central nervous system, HDL has nevertheless emerged as a potential resilience factor for dementia in multiple epidemiological studies. Animal model data specifically support a role for HDL in attenuating the accumulation of P-amyloid within cerebral vessels concomitant with reduced neuroinflammation and improved cognitive performance. As the vascular contributions to dementia are increasingly appreciated, this review seeks to summarize recent literature focused on the vasoprotective properties of HDL that may extend to cerebral vessels, discuss potential roles of HDL in dementia relative to brainderived lipoproteins, identify gaps in current knowledge, and highlight new opportunities for research and discovery. 展开更多
关键词 high density lipoprotein vascular function vascular disease alzheimer disease HDL-proteome HDL-lipidome
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Theoretical Calculation about the High Energy Density Molecules of Nitrate Ester Substitution Derivatives of Prismane 被引量:2
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作者 李步通 迟伟杰 李璐琳 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2016年第8期1306-1312,共7页
The nitrate ester substitution derivatives of prismane were studied at the B3LYP/6-311G** level. The sublimation enthalpies and heats of formation in gas phase and solid state were calculated. The detonation perform... The nitrate ester substitution derivatives of prismane were studied at the B3LYP/6-311G** level. The sublimation enthalpies and heats of formation in gas phase and solid state were calculated. The detonation performances were also predicted by using the famous Kamlet-Jacbos equation. Our calculated results show that introducing nitrate ester group into prismane is helpful to enhance its detonation properties. Stabilities were evaluated through the bond dissociation energies, bond order, characteristic heights(H50) and band gap calculations. The trigger bonds in the pyrolysis process of prismane derivatives were confirmed as O–ON2 bond. The BDEs of all compounds were large, so these prismane derivatives have excellent stability consistent with the results of H50 and band gap. 展开更多
关键词 prismane nitrate ester group high energy density compounds impact sensitive density functional theory
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LaB6 Work Function and Structural Stability under High Pressure
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作者 李鹏善 崔巍然 +6 位作者 李蕊 孙华蕾 李延春 杨栋亮 宫宇 李晖 李晓东 《Chinese Physics Letters》 SCIE CAS CSCD 2017年第7期185-189,共5页
The work functions of the (110) and (10(3) surfaces of LaB6 are determined from ambient pressure to 39.1 GPa. The work function of the (110) surface slowly decreases but that of the (100) surface remains at a... The work functions of the (110) and (10(3) surfaces of LaB6 are determined from ambient pressure to 39.1 GPa. The work function of the (110) surface slowly decreases but that of the (100) surface remains at a relatively constant value. To determine the reason for this difference, the electron density distribution (EDD) is determined from high-pressure single-crystal x-ray diffraction data by the maximum entropy method. The EDD results show that the chemical bond properties in LaB6 play a key role also investigated by single-crystal x-ray diffraction. In observed from ambient pressure to 39.1 GPa. The structural stability of LaB6 under high pressure is this study, no structural or electronic phase transition is 展开更多
关键词 CASTEP EDD 110 MEM LaB6 Work Function and Structural Stability under high Pressure
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CHARACTERISTICS OF MULTIFOCAL ELECTRORETINOGRAM IN THE FELLOW EYES OF PATIENTS WITH HIGH MYOPIA WITH RETINAL DETACHMENT
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作者 宋毅 宫媛媛 +1 位作者 解正高 吴星伟 《Journal of Shanghai Second Medical University(Foreign Language Edition)》 2008年第2期109-114,共6页
Objective To observe the changes on multifocal electroretinography (MfERG) in the fellow eyes of patients with high myopia without fundus lesions and rhegmatogenous retinal detachment (RRD). Methods MfERG was perf... Objective To observe the changes on multifocal electroretinography (MfERG) in the fellow eyes of patients with high myopia without fundus lesions and rhegmatogenous retinal detachment (RRD). Methods MfERG was performed in 66 patients ( 66 eyes) which were grouped into : emmetropes ( n = 22 ) as the control eye ; high myopes without fundus lesions ( corrected visual acuity ≥ 1. 0, n = 15 ) ; and fellow eyes of high myopics with RRD (n = 29 ). The first-order kernels N1, P1, N2 response density and latency were analyzed. Results When compared with the emmetropes group, the high myopes group had significantly reduced N1 , PI , and N2 wave response densities in rings 1 to 6 ( P 〈 0. 05 ), delayed N1 wave latency in rings 3 to 6, and P1 wave latency in rings 3 to 5 ( P 〈 0. 05 ). The fellow eyes group had significantly reduced N1, P1, and N2 wave response densities in rings 1 to 6 and significantly delayed N1 and P1 wave latencies in rings 3 to 6 ( P 〈0. 05) compared with the emmetropes group. Compared with the high myopes group, P1 wave response densities in rings 1 to 6, N1 wave response densities in rings 1,3, 4, and 6, and N2 wave response density in ring 1 were significantly decreased in the fellow eyes group ( P 〈 0. 05 ) ; whereas there were no significant differences in latencies between the two groups (P 〉0.05). Conclusion MfERG can sensitively assess the early changes in visual function in fellow eyes in patients with RRD. 展开更多
关键词 fellow eye high myopia multifocal electroretinogram rhegmatogenous retinal detachment visual function
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Study on Characteristics of 3-D Translating-Pulsating Source Green Function of Deep-Water Havelock Form and Its Fast Integration Method 被引量:19
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作者 许勇 董文才 《China Ocean Engineering》 SCIE EI 2011年第3期365-380,共16页
The singularities, oscillatory performances and the contributing factors to the 3-'D translating-pulsating source Green function of deep-water Havelock form which consists of a local disturbance part and a far-field ... The singularities, oscillatory performances and the contributing factors to the 3-'D translating-pulsating source Green function of deep-water Havelock form which consists of a local disturbance part and a far-field wave-like part, are analyzed systematically. Relative numerical integral methods about the two parts are presented in this paper. An improved method based on LOBATTO rule is used to eliminate singularities caused respectively by infinite discontinuity and jump discontinuous node from the local disturbance part function, which makes the improvement of calculation efficiency and accuracy possible. And variable substitution is applied to remove the singularity existing at the end of the integral interval of the far-field wave-like part function. Two auxiliary techniques such as valid interval calculation and local refinement of integral steps technique in narrow zones near false singularities are applied so as to avoid unnecessary integration of invalid interval and improve integral accordance. Numerical test results have proved the efficiency and accuracy in these integral methods that thus can be applied to calculate hydrodynamic performance of floating structures moving in waves. 展开更多
关键词 translating-pulsating source Green's function singularity highly oscillatory function integration method
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Performance analysis of fast GPS signal acquisition based on PMF and Window FFT 被引量:4
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作者 李传军 杨树兴 季镇 《Journal of Beijing Institute of Technology》 EI CAS 2012年第3期291-297,共7页
Combining the advantages of partial matched filter(PMF) and fast Fourier transform(FFT),an improved fast acquisition method for GPS C/A code is proposed.According to PMF-FFT acquisition architecture,the greater th... Combining the advantages of partial matched filter(PMF) and fast Fourier transform(FFT),an improved fast acquisition method for GPS C/A code is proposed.According to PMF-FFT acquisition architecture,the greater the number of PMF will bring out the more slowly amplitude decreasing of the amplitude-frequency response,the smaller scale of the corresponding PMF,and the larger computation of the FFT.In order to compensate the frequency spectrum attenuation caused by spectrum leakage and fence effect,adding window function to PMF-FFT is presented.Through comparing the influences to the acquisition performance based on rectangular,Hamming,Blackman and Rife-Vincent(Ⅲ) window functions,an improved Rife-Vincent Ⅲ windowing algorithm is recommended for the fast acquisition based on PMF-FFT. 展开更多
关键词 fast acquisition PMF FFT window function high dynamic receiver
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Manipulating dielectric property of polymer coatings toward highretention-rate lithium metal full batteries under harsh critical conditions 被引量:8
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作者 Qi Kang Zechao Zhuang +8 位作者 Yong Li Yinze Zuo Jian Wang Yijie Liu Chaoqun Shi Jie Chen Hongfei Li Pingkai Jiang Xingyi Huang 《Nano Research》 SCIE EI CSCD 2023年第7期9240-9249,共10页
Lithium(Li)metal batteries(LMBs)can potentially deliver much higher energy density but remain plagued by uncontrollable Li plating with dendrite growth,unstable interfaces,and highly abundant excess Li(>50 mAh·... Lithium(Li)metal batteries(LMBs)can potentially deliver much higher energy density but remain plagued by uncontrollable Li plating with dendrite growth,unstable interfaces,and highly abundant excess Li(>50 mAh·cm^(-2)).Herein,different from the artificial layer or three-dimensional(3D)matrix host constructions,various dielectric polymers are initially well-comprehensively investigated from experimental characterizations to theoretical simulation to evaluate their functions in modulating Li ion distribution.As a proof of concept,a 3D interwoven high dielectric functional polymer(HDFP)nanofiber network with polar C-F dipole moments electrospun on copper(Cu)foil is designed,realizing uniform and controllable Li deposition capacity up to 5.0 mAh·cm^(-2),thereby enabling stable Li plating/stripping cycling over 1400 h at 1.0 mA·cm^(-2).More importantly,under the highcathode loading(~3.1 mAh·cm^(-2))and only 0.6×excess Li(N/P ratio of 1.6),the full cells retain capacity retention of 97.4%after 200 cycles at 3.36 mA·cm^(-2)and achieve high energy density(297.7 Wh·kg^(-1)at cell-level)under lean electrolyte conditions(15μL),much better than ever-reported literatures.Our work provides a new direction for designing high dielectric polymer coating toward high-retention-rate practical Li full batteries. 展开更多
关键词 high dielectric functional polymer NANOFIBER Li metal full cell low N/P ratio high-retention capacity
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Protective Effects of Xiongshao Capsule(芎芍胶囊) on Anti-inflammatory Function of High-Density Lipoprotein in AnAtherosclerosis Rabbit Model 被引量:13
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作者 ZHANG Yan-hong ZHANG Ying +2 位作者 LI Jing TONG Wen-xin XU Feng-qin 《Chinese Journal of Integrative Medicine》 SCIE CAS CSCD 2017年第5期357-361,共5页
Objective: To observe the effects of Xiongshao Capsule(芎芍胶囊, XSC) on anti-inflammatory properties of high-density lipoprotein(HDL), myeloperoxidase(MPO) and paraoxonase 1(PON1) in serum of atherosclerosis... Objective: To observe the effects of Xiongshao Capsule(芎芍胶囊, XSC) on anti-inflammatory properties of high-density lipoprotein(HDL), myeloperoxidase(MPO) and paraoxonase 1(PON1) in serum of atherosclerosis(AS) rabbit model and explore the anti-inflammatory protective effects of XSC on HDL. Methods: Sixty rabbits were randomized into the control, the model, XSC low-, medium-and high-dose(Rhizoma Chuanxiong + Radix Paeoniae rubra : 0.6+0.3, 1.2+0.6, 2.4+1.2 g·kg-1·day-1, respectively), and simvastatin(1 g·kg-1·day-1) groups. The model rabbits were fed with high-fat diet and respective drugs for 15 weeks. The blood and thoracic aortas samples were collected at the end of 15 weeks. The levels of serum MPO and PON1 as well as total cholesterol(TC) and free cholesterol(FC) in aorta wall cells were tested by enzyme linked immunosorbent assay. Results: TC and FC in the model group were significantly higher than those in the control group(P〈0.01). Compared with the model group, TC and FC in the XSC groups were significantly lower(P〈0.05 or P〈0.01), so was simvastatin group(P〈0.01). There was no significant difference in PON1 level between groups(P〉0.05), even between model and control groups(P〉0.05). The serum MPO level in the model group was significantly higher than that in the control group(P〈0.05), which was significantly lower in XSC groups as well as simvastatin group(P〈0.05 or P〈0.01), and no difference was found between XSC groups and simvastatin group(P〉0.05). Conclusions: XSC can reduce the serum MPO level in AS rabbits to protect the anti-inflammatory function of HDL, maintaining the normal lipid transport function. TC and FC levels in aorta cells decline, and this process initiated by XSC plays an anti-AS role. 展开更多
关键词 blood-activating and stasis-dissolving anti-atherosclerosis anti-inflammatory functional high density lipoprotein Chinese medicine
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Synthesis of a New Class of Highly Functionalized Phosphorus Ylides Containing Heterocyclic Compounds
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作者 Shaabani Ahmad Keshipour Sajjad Aghaei Morteza Khodabandeh M. Hassan Zahedi Mansour 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2012年第8期1893-1900,共8页
The zwitterionic intermediate generated from the reaction of triphenylphosphine with electron deficient acety- lenic compounds was trapped by various NH acids. The synthesis resulted in a new class of highly functiona... The zwitterionic intermediate generated from the reaction of triphenylphosphine with electron deficient acety- lenic compounds was trapped by various NH acids. The synthesis resulted in a new class of highly functionalized heterocyclic compounds. Some of the reactions produced E and Z isomers. And the stability and transformation of them were studied by dynamic 1H NMR and density functional theory (DFT) calculations. 展开更多
关键词 highly functionalized heterocyclic compounds phosphorus ylides TRIPHENYLPHOSPHINE DFT dynamic 1H NMR
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(Identity-based)dual receiver encryption from lattice-based programmable hash functions with high min-entropy
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作者 Yanyan Liu Daode Zhang +1 位作者 Yi Deng Bao Li 《Cybersecurity》 CSCD 2019年第1期271-285,共15页
Dual receiver encryption(DRE)is an important cryptographic primitive introduced by Diament et al.at CCS’04,which allows two independent receivers to decrypt a same ciphertext to obtain the same plaintext.This primiti... Dual receiver encryption(DRE)is an important cryptographic primitive introduced by Diament et al.at CCS’04,which allows two independent receivers to decrypt a same ciphertext to obtain the same plaintext.This primitive is quite useful in designing combined public key cryptosystems and denial of service attack-resilient protocols.In this paper,we obtain some results as follows.·Using weak lattice-based programmable hash functions(wLPHF)with high min-entropy(Crypto’16),we give a generic IND-CCA secure DRE construction in the standard model.Furthermore,we get a concrete DRE scheme by instantiating a concrete wLPHF with high min-entropy.·For DRE notion in the identity-based setting,identity-based DRE(IB-DRE),basing on lattice-based programmable hash functions(LPHF)with high min-entropy,we give a framework of IND-ID-CPA secure IB-DRE construction in the standard model.When instantiating with concrete LPHFs with high min-entropy,we obtain five concrete IB-DRE schemes. 展开更多
关键词 Dual receiver encryption Identity-based dual receiver encryption Lattice-based programmable hash functions with high min-entropy
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(Identity-based)dual receiver encryption from lattice-based programmable hash functions with high min-entropy
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作者 Yanyan Liu Daode Zhang +1 位作者 Yi Deng Bao Li 《Cybersecurity》 2018年第1期559-573,共15页
Dual receiver encryption(DRE)is an important cryptographic primitive introduced by Diament et al.at CCS’04,which allows two independent receivers to decrypt a same ciphertext to obtain the same plaintext.This primiti... Dual receiver encryption(DRE)is an important cryptographic primitive introduced by Diament et al.at CCS’04,which allows two independent receivers to decrypt a same ciphertext to obtain the same plaintext.This primitive is quite useful in designing combined public key cryptosystems and denial of service attack-resilient protocols.In this paper,we obtain some results as follows.·Using weak lattice-based programmable hash functions(wLPHF)with high min-entropy(Crypto’16),we give a generic IND-CCA secure DRE construction in the standard model.Furthermore,we get a concrete DRE scheme by instantiating a concrete wLPHF with high min-entropy.·For DRE notion in the identity-based setting,identity-based DRE(IB-DRE),basing on lattice-based programmable hash functions(LPHF)with high min-entropy,we give a framework of IND-ID-CPA secure IB-DRE construction in the standard model.When instantiating with concrete LPHFs with high min-entropy,we obtain five concrete IB-DRE schemes. 展开更多
关键词 Dual receiver encryption Identity-based dual receiver encryption Lattice-based programmable hash functions with high min-entropy
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Design,fabrication and characterization of dual-channel real space transfer transistor
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作者 Weilian GUO Shilin ZHANG Xin YU 《Frontiers of Electrical and Electronic Engineering in China》 CSCD 2009年第2期234-238,共5页
In this paper,using aδ-doping dual-channel structure and GaAs substrate,a real space transfer transistor(RSTT)is designed and fabricated successfully.It has the standardΛ-shaped negative resistance I-V characteristi... In this paper,using aδ-doping dual-channel structure and GaAs substrate,a real space transfer transistor(RSTT)is designed and fabricated successfully.It has the standardΛ-shaped negative resistance I-V characteristics as well as a level and smooth valley region that the conventional RSTT has.The negative resistance parameters can be varied by changing gate voltage(VGS).For example,the PVCR varies from 2.1 to 10.6 while VGS changes from 0.6 V to 1.0 V.The transconductance for IP(ΔIP=ΔVGS)is 0.3 mS.The parameters of VP,VV and threshold gate voltage(VT)for negative resistance characteristics arising are all smaller than the value reported in the literature.Therefore,this device is suitable for low dissipation power application. 展开更多
关键词 real space transfer transistor(RSTT) high speed compound three terminal function device three terminal negative resistance device hot electron device electron transfer device
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Comparison on Traditional and Machinery Decoctions for Da-cheng-qi Decoction Based on Chemical Ingredients, Pharmacological Functions, and Clinical Trials
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作者 Rui-fang Xie Yi-min Li +8 位作者 Zhi-cheng Li Zhi-na Shi Pei-pei Chen Song-hua He Hua-feng Wei Yan-hong Wang Ying-hao Zhou You-hua Wang Xin Zhou 《Chinese Herbal Medicines》 CAS 2015年第4期354-364,共11页
Objective Patients and doctors often have questions about the equivalence of traditional and machinery decoctions. In this article, using Da-cheng-qi Decoction(DCQD) as a model of formula, traditional decoction(TD... Objective Patients and doctors often have questions about the equivalence of traditional and machinery decoctions. In this article, using Da-cheng-qi Decoction(DCQD) as a model of formula, traditional decoction(TD), machinery decoction under high pressure(MDHP), and machinery decoction under normal pressure(MDNP) were compared. Methods For chemical components, HPLC fingerprints were established and evaluated using AHP combined with CRITIC weighing method; For animals' effects, the experiments of small intestinal propulsion were conducted; For clinical effects, a randomized clinical trial(RCT) was designed and performed. Results Although there were some differences between TD and MDNP in chemical ingredients, there was no significant difference in animal experiments and clinical trials(P 〉 0.05). Conclusion The traditional and machinery decoctions of DCQD could be used bioequivalently. 展开更多
关键词 chemical ingredients clinical trials Da-cheng-qi Decoction machinery decoction under high pressure machinery decoction under normal pressure pharmacological functions traditional decoction
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