|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Early melatonin supplementation alleviates oxidative stress in a transgenic mouse model of Alzheimer's disease显示文摘 | Feng Z Qin C Chang Y Zhang JT | 2006 | 中国生物学文摘2006，20，10： | 13 |
| 2 | Necessity and indications of invasive treatment for Budd-Chiari syndrome显示文摘BACKGROUND:The development of collaterals in Budd-Chiari syndrome has been described and these collaterals play an important role in the presentation of this disease.These collaterals are diagnostic and their use in management strategy has never been evaluated.This study aimed to investigate the indications,feasibility and necessity of invasive treatment for patients with Budd-Chiari syndrome and to determine whether such a strategy is necessary for optimal management.METHODS:Twenty-nine patients who had been treated at our unit were enrolled in this study.Based on physical and biochemical examination,and hemodynamic compensation by collaterals,18 patients underwent radiological intervention (group A),while the other 11 had no invasive treatment (group B).The related hemodynamic parameters were acquired when percutaneous angiography was performed.RESULTS:In group A,all patients underwent successfully inferior vena cava (IVC) balloon angioplasty with or without stenting.Four patients also underwent hepatic vein angioplasty.In these patients,the mean IVC pressure before and after treatment was statistically different (29.3±9.2 vs 15.1±4.6 mmHg,P<0.01).The mean IVC pressure was much lower in group B than in group A (12.9±2.4 vs 29.3±9.2 mmHg,P<0.01),but there was no difference from that of the patients after radiological treatment (12.9±2.4 vs 15.1±4.6 mmHg,P>0.05).Median follow-up was 32.3 months (mean 21.3 months;range 3-61 months).In the course of follow-up,the patients in group A survived with good systemic status except for re-stenosis in one patient who underwent re-canalization of the IVC.In group B,10 patients had good systemic status except one patient who had a meso-caval shunt because of deterioration.CONCLUSIONS:The rationale of 'early diagnosis and early treatment' is not suitable for all patients with Budd-Chiari syndrome.Satisfactory survival can be achieved in some patients without invasive treatment,who are completely compensated by rich collaterals.Nonetheless,a positive treatment procedure should be performed if the patient's situation worsens in the course of regular follow-up. | Department of General Surgery (Fu Y,Sun YL,Ma XX,Xu PQ,Feng LS,Tang Z and Luo CH),Institute of Hepatic Vascular Disease (Sun YL),Department of Radiological Intervention (Guan S and Wang ZW),First Affiliated Hospital,Zhengzhou University School of Medicine,Zhengzhou 450052,China | 2011 | Hepatobiliary & Pancreatic Diseases International2011，10，3： | 10 |
| 3 | Beneficial effects of melatonin in experimental models of Alzheimer disease显示文摘 | Cheng Y Feng Z Zhang QZ Zhang JT | 2006 | 中国生物学文摘2006，20，10： | 5 |
| 4 | Nuclear reprogramming: the zygotic transcription program is established through an“erase-and-rebuild” strategy显示文摘卵母细胞显示母亲特定的基因表达式侧面,它被换到当染色质的一个单倍体集合被传递到发展成一个胚胎的受精卵时, zygotic 介绍。位于这抄写 reprogramming 下面的机制当前是未知的。等到当抄写在幼芽的泡卵母细胞被关掉时,一般抄写因素和 transcriptional 管理者的一个范围从染色质被分裂,这里,我们表明那。染色质因素(CF ) 的全球分离破坏在染色质和 CF 之间的物理接触并且在功能的水平导致母亲的抄写节目的檫除。与染色质论坛分开的批评抄写因素和管理者遗体延长了时期,并且立即在专业版以后与染色质成为 re-associated 原子形成。Thisis 由象 DNA 和抄写那样的原子功能的重建跟随了速度集合。我们建议母亲的抄写节目在卵子发生期间被擦掉产生相对天真的染色质, zygotic 抄写节目是在授精以后的重建的重新。这个过程作为“ erase-and-rebuild ”被称为过程,它被用来重设抄写节目,和最可能的其它原子过程也,从母亲的到胚胎的。我们进一步在伴随的纸出现(高 T,等,房间物件 2007;17:135-150 .) 一样的策略也被采用到改编 transcriptional,这在体细胞介绍原子转移和单性生殖,建议这当模特儿在早胚胎开始期间对 transcriptional reprogramming 的所有形式普遍适用。从染色质的 CF 的排水量也为抄写沉默的现象提供解释在期间对 zygotic 转变母亲。 | Feng Sun Haiyan Fang Ruizhen Li Tianlong Gao Junke Zheng Xuejin Chen Wenqin Ying Hui Z Sheng | 2007 | Cell Research2007，17，2： | 5 |
| 5 | DEBRIS FLOW CONTROL BY USING SLIT DAMS显示文摘Slit dams have been shown to be effective in trapping coarse sediment and retarding the debris flow. It is necessary to establish the controlling efficiency and the systematic procedures for designing slit dams, as well as reasonable sites for their location. Using the principle of mass conservation and laboratory experiments, this paper develops the sediment flow-out ratio and sediment concentration ratio to evaluate the effectiveness of the slit dam, and confirms that sediment concentration ratio increases with an increase in relative spacing and slit density. The sediment flow-out ratio depends on the sediment concentration ratio and sediment concentration before passing through a slit dam. For sediment concentration before passing through a slit dam, based upon Bagnold’s concept of the dispersive stress generated by grain collisions in flow and bed shear stress, a semi-empirical relationship is obtained. Compared with other researchers’ studies, this study is found to be in excellent conformity with theirs, when taking 0.1 as the empirical coefficient. Besides, height, spacing and location factors affecting a slit dam design for debris flow mitigation are established herein. Furthermore, the design procedures of a slit dam are provided as a useful tool for controlling the debris flow hazards and are illustrated by a numerical example. | Hui-Pang LIEN and Fang-Wu TSAI (1 Associate Professor, Department of Hydraulic Engineering, Feng Chia University, Taichung, Taiwan 407, China z Associate Professor, Department of Mechanic Engineering, Chung Chou College of Technology and Commerce, Changhu | 2000 | International Journal of Sediment Research2000，15，4： | 3 |
| 6 | Variations in Wool Growth with Nutrient Supply in Northern China显示文摘Field studies on essessment of nutritional status of the grazing sheep were carried out in each of the three major grassland regions, the eastern Inner Mongolia and beyond grassland, the Inner Mongolia - Ningxia - Gansu grassland and the Xinjiang grassland, in northern China. The results obtained showed that the wool production of fine wool sheep in these regions varied between regions and seasons, with similar seasonal patterns in all regions and that reducing the seasonal variations in nutrient supply would enhance wool production substantially. Nutritional limitations to wool growth of the grazing sheep in these regions were suggested, those were: the shortage of protein supply in winter and early spring; the poor quality of much of the pasture and the hay used as supplements, the low energy intake during winter which probably necessitated the use of body stores to maintain body temperature. | D X Lu,Iner(Mongolia Academy of Animal Sciences.Hohhot City.Inner Mongolia Autgolia Autonmous Region.PRC)Z C Feng,(Mongolia Academy of Animal Sciences.Hohhot City.Inner Mongolia Autgolia Autonmous Region.PRC)H R Wang,(Mongolia Academy of Animal Sciences.Hohhot City.Inner Mongolia Autgolia Autonmous Region.PRC)R Z Yang,(Xinjiang Institute of Animal Science.Xinjiang Academy of Animal Science.Yiu Hou Road.Urumqi.Xinjiang Uygur Autonomous Region PRC)C T Ma,(Chinese Academy of Agricultural Sciences.Lanzhou.Gansu.PRC)D B Purser,(CSIRO Division of Animal Production.Laboratory for Rural Research.Private Bag.P.O.Wembley.Western Australia 6014)J R Lindsay(CSIRO Division of Animal Production.Laboratory for Rural Research.Private Bag.P.O.Wembley.Western Australia 6014)D W Peter(CSIRO Division of Animal Production.Laboratory for Rural Research.Private Bag.P.O.Wembley.Western Australia 6014) | 1997 | 畜牧与饲料科学1997，22，S1： | 3 |
| 7 | 全颗粒饲料对奶牛生产性能的影响显示文摘饲料中的中性洗涤纤维(NDF)含量和饲料颗粒直径是影响瘤胃功能的重要因素。试验评估了以颗粒饲料为主的奶牛瘤胃健康情况、NDF消化率和生产性能。选取8头荷斯坦母牛(336±30 d,体重346±35 kg),随机分配到交叉重复试验组中,奶牛安置于牛栏,自由采食。试验期为3周,前两周是适应期,最后一周为数据收集期。各组饲粮原料相同,但物理形式不同,分为全混合日粮(TMR)和颗粒料(直径=8 mm)。两组间物理有效NDF(pe NDF)不同,TMR组为39.8%,颗粒料组为11.8%。在试验过程中,干物质采食量(DMI)、饮水量、瘤胃反刍时间、瘤胃温度和pH情况均记录。3周后收集粪样,确定潜在的可消化NDF总消化率(pdNDF)。每阶段结束后计算平均日增重和饲料转化率。颗粒料组的DMI、DMI/体重和饮水量更高。而两组间平均日增重和饲料转化率无显著差异。颗粒料组的瘤胃反刍时间为241 min·d-1低于TMR组的507 min·d-1。饲料的不同物理外形对瘤胃温度、瘤胃pH无显著影响。TMR组的pdNDF总消化率为90.25%高于颗粒料组的86.82%。试验结果表明,动物易接受完整的颗粒饲料,DMI较高,且反刍时间减少,但瘤胃pH无显著变化。TMR组的pdNDF消化率显著增加。尽管两组奶牛在DMI和纤维消化方面表现不同,但总体表现相似,两组饲料的保存时间与其物理形式有关。在短期内,提供能满足NDF需求的完全颗粒饲料可改善瘤胃健康状况和动物生产性能,而较长时间的数据则需要进一步试验。 | Wang J Yang M Cao M Lin Y Che L Q Duraipandiyan V Al-Dhabi N A Fang Z F Xu S Y Feng B Liu G Wu D Bonfante E Palmonari A Mammi L Canestrari G Fustini M Formigoni A | 2016 | 饲料博览2016，0，12： | 2 |
| 8 | Terahertz Semiconductor Quantum Well Devices显示文摘For eventually providing terahertz science with compact and convenient devices,terahertz (1~10THz) quantum-well photodetectors and quantum-cascade lasers are investigated.The design and projected detector performance are presented together with experimental results for several test devices,all working at photon energies below and around optical phonons.Background limited infrared performance (BLIP) operations are observed for all samples (three in total),designed for different wavelengths.BLIP temperatures of 17,13,and 12K are achieved for peak detection frequencies of 9.7THz(31μm),5.4THz(56μm),and 3.2THz(93μm),respectively.A set of THz quantum-cascade lasers with identical device parameters except for doping concentration is studied.The δ-doping density for each period varies from 3.2×1010 to 4.8×1010cm-2.We observe that the lasing threshold current density increases monotonically with doping concentration.Moreover,the measurements for devices with different cavity lengths provide evidence that the free carrier absorption causes the waveguide loss also to increase monotonically.Interestingly the observed maximum lasing temperature is best at a doping density of 3.6×1010cm-2. | Liu H C Luo H Ban D Waichter M Song C Y Wasilewski Z R Buchanan M Aers G C SpringThorpe A J Cao J C Feng S L Williams B S Hu Q | 2006 | Journal of Semiconductors2006，27，4： | 2 |
| 9 | Pyroelectric spectrum in Pb(Zr,Sn,Ti)O3 antiferroelectric- ferroelectric ceramics显示文摘The pyroelectric effect of phase transition induced with temperature in Nb-modified Pb(Zr,Sn,Ti)O3 antiferroelectric-ferroelectric ceramics is studied. Experimental results reveal that the phase transitions are accompanied with marked pyroelectric peaks, there exists the close relation between the type of phase transition and the shape of pyroelectric peak. Because of the variations of phase transition, various pyroelectric spectra result. The pyroelectric spectrum can display the polarization effect and some inferior phase transitions with temperature variations, such as antiferroelectric AFEA-AFEB or ferroelectric FEL-FEH transition, which are not detected by the conventional dielectric measurement. | Feng, YJ Xu, Z Yang, TQ Yao, X | 2000 | Chinese Science Bulletin2000，45，13： | 2 |
| 10 | Seasonal variation of solvent extractable organic compounds in the aerosols in Qingdao, China显示文摘 | Guo Z G Sheng L F Feng J L | 2003 | Atmospheric Environment2003，37，13： | 1 |
| 11 | Radioprotection of lungs by amifostine is associated with reduction in profibrogenic cytokine activity 显示文摘 | Vujaskovic Z Feng QF Rabbani ZN | 2002 | Radiat Res2002，157，6： | 1 |
| 12 | Endogenous hydrogen sulfide contributes to the cardioprotection by metabolic inhibition preconditioning in the rat ventricular myocytes显示文摘 | Pan T T Feng Z N Lee S W | 2006 | J Mol Cell Cardiol2006，40，1： | 1 |
| 13 | Cloning and optimization of a nitrilase for the synthesis of (3S)-3-cyano-5-methyl hexanoic acid显示文摘 | Feng J Garcia E | 2006 | J Mol Catal B:Enzymatic2006，41，34： | 1 |
| 14 | Simple scheme for generating an n-qubit W state in cavityQED显示文摘 | Feng M Gao K L | 2006 | Phys Rev A2006，73，01： | 1 |
| 15 | Flexible, stretchable, transparent carbon nanotube thin film loudspeakers 显示文摘 | Xiao L Chen Z Feng C | 2008 | Nano Lett2008，8，12： | 1 |
| 16 | Converting ceria polyhedral nanoparticles into single-crystal nanospheres 显示文摘 | Feng X D Sayle D C Wang Z L Paras M S Santora B Sutorik A C Sayle T X T Yang Y Ding Y Wang X D Her Y S | 2006 | Science2006，312，5779： | 1 |
| 17 | Total least mean squares algorithm显示文摘 | Feng D Z Bao Z Jiao L C | 1998 | IEEE Trans on Signal Processing1998，46，8： | 1 |
| 18 | High level expression of human endostatin in Pichia pastoris using a synthetic gene construct 显示文摘 | Su Z Wu X Feng Y | 2007 | Appl MicrobiolBiotechnol2007，73，6： | 1 |
| 19 | Global entropy solutions to the relativistic Euler equations for a class of large initial data显示文摘 | LI Y C FENG D M WANG Z J | 2005 | Zeitschrift für angewandte Mathematik und Physik2005，56，2： | 1 |
| 20 | Superior efficacy of a Cremophor-fiee albumin-bound paclitaxel compared with solvent-based paclitaxel in Chinese patients with metastatic breast cancer显示文摘 | GUAN Z Z LI Q L FENG F Y | 2009 | Asian Pac J Clia Oncol2009，5，3： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员