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| 1 | Combustion synthesis, characterization and luminescence properties of barium aluminate phosphor显示文摘The blue-green emitting Eu2+ and Nd3+ doped polycrystalline barium aluminate(BaAl2O4:Eu2+,Nd3+) phosphor, was prepared by a solution-combustion method at 500 oC without a post-annealing process. The characteristic variation in the structural and luminescence properties of the as-prepared samples was evaluated with regards to a change in the Ba/Al molar ratio from 0.1:1 to 1.4:1. The morphologies and the phase structures of the products were characterized by scanning electron microscopy(SEM), transmission electron microscopy(TEM), X-ray diffraction(XRD) and X-ray photoelectron spectroscopy(XPS), while the optical properties were investigated using ultra-violet(UV) and photoluminescence(PL) spectroscopy, respectively. The XRD and TEM results revealed that the average crystallite size of the BaAl2O4:Eu2+,Nd3+ phosphor was about 70 nm. The broad-band UV-excited luminescence of the phosphors was observed at λmax=500 nm due to transitions from the 4f65d1 to the 4f7 configuration of the Eu2+ ion. The PL results indicated that the main peaks in the emission and excitation spectrum of phosphor particles slightly shifted to the short wavelength due to the changes in the crystal field due to the structure changes caused by the variation in the quantity of the Ba ions in the host lattice. | A.H. Wako F.B Dejene H.C Swart | 2014 | Journal of Rare Earths2014,32,9: | 4 |
| 2 | 石杉碱甲对重度抑郁症患者认知功能障碍的治疗:一项随机对照试验的系统综述(英文)显示文摘背景:乙酰胆碱酯酶(Acetylcholinesterase,AChE)抑制剂在重性抑郁障碍(Major Depressive Disorder,MDD)的动物模型和人类患者中已被证实可以有效地治疗认知障碍。石杉碱甲(Huperzine A,HupA)是一种来自于被称为蛇足石杉(Huperzineserrata)的石松属传统中医药,是一种强有力的AChE抑制剂,已被用于抑郁症的辅助治疗,但有尚无关石杉碱甲对MDD的强化治疗作用的meta分析。目标:对有关石杉碱甲强化治疗抑郁症的随机对照试验进行系统综述和meta分析,评估其疗效及安全性。方法:两位评估者独立检索9个英文和中文数据库,选择符合预先确定的纳入标准的相关研究,提取有关疗效和安全性的数据,并进行质量评估和数据拟合合成。结果:纳入了三项中国低质量的随机对照试验(总共n=238),这些试验比较了单用抗抑郁药治疗抑郁症与抗抑郁药和石杉碱甲的联合治疗,试验中的被试从16岁到60岁。研究中石杉碱甲辅助抗抑郁药治疗的平均时间仅为6.7周。这三项研究都是公开标签未使用盲法,所以他们的总体质量评定为差。总体样本的Meta分析发现两组抑郁症状的改善没有显著性差异(差异加权差为-1.90,95%CI可信区间为-4.23至0.44,p=0.11)。然而,石杉碱甲辅助治疗组比单用抗抑郁药治疗组在认知功能和生活质量方面有显著改善(如威斯康星卡片分类测验、韦氏记忆量表修订的评估)。组间药物不良反应的发生率无显著性差异。结论:有关在接受抗抑郁药的MDD患者使用HupA辅助治疗的疗效和安全性的可获取数据不足,难以得出有关其疗效和安全性的明确结论。汇集国内3项低质量的RCT数据没有发现采用辅助使用HupA治疗抑郁症状的优势,但辅助使用HupA与更快改善经常伴随MDD出现的认知症状相关。 | 郑伟 向应强 Ungvari GS Chiu F.K.H Ng H.C 王颖 项玉涛 | 2016 | 上海精神医学2016,28,2: | 4 |
| 3 | Internal nutrient efficiencies of irrigated lowland rice in tropical and subtropical Asia显示文摘 | C Witt A Dobermann S Abdulrachman H.C Gines Wang Guanghuo R Nagarajan S Satawatananont Tran Thuc Son Pham Sy Tan Le Van Tiem G.C Simbahan D.C Olk | 1999 | Field Crops Research1999,,2: | 2 |
| 4 | Damage control orthopaedics in unstable pelvic ring injuries显示文摘 | P.V Giannoudis H.C Pape | 2004 | Injury2004,,7: | 2 |
| 5 | Study of humic-like substances in fog and interstitial aerosol by size-exclusion chromatography and capillary electrophoresis显示文摘 | Z Krivácsy Gy Kiss B Varga I Galambos Zs Sárvári A Gelencsér á Molnár S Fuzzi M.C Facchini S Zappoli A Andracchio T Alsberg H.C Hansson L Persson | 2000 | Atmospheric Environment2000,,25: | 1 |
| 6 | Value-based adoption of mobile internet:an empirical investiga-tion显示文摘 | Kim H.W Chan H.C Gupta S | | 0,,01: | 1 |
| 7 | Functional imaging of neural responses to expectancy and experience of monetary gains and losses显示文摘 | Breiter H.C Aharon I Kahneman D Dale A & Shizgal P | | 0,,02: | 1 |
| 8 | Natural medicines used in the traditional Chinese medical system for therapy of diabetes mellitus显示文摘 | W.L Li H.C Zheng J Bukuru N De Kimpe | 2004 | Journal of Ethnopharmacology2004,,1: | 1 |
| 9 | Frequency of contact and stereotyping显示文摘 | Triandis H.C Vassiliou V | | 0,,03: | 1 |
| 10 | XANES and magnetic studies of Ca 1? x Sr x RuO 3 itinerant ferromagnetic system显示文摘 | B.N Lin C.Y Lin Y.S Wu H.C Ku | 2004 | Journal of Magnetism and Magnetic Materials2004,,: | 1 |
| 11 | Behavioral and neural correlates of memory selection and interference resolution during a digit working memory task显示文摘 | Yi Y Diesen N Leung H.C | | 0,,03: | 1 |
| 12 | Can blogging enhance subjective well-being through self-disclosure显示文摘 | Ko H.C Kuo F.Y | | 0,,01: | 1 |
| 13 | A literature review of the anchoring effect显示文摘 | Furnham A Boo H.C | | 0,,01: | 1 |
| 14 | Frontal activations associated with accessing and evaluating information in working memory:An fMRI study显示文摘 | Zhang J.X Leung H.C Johnson M.K | | 0,,: | 1 |
| 15 | MR-guided Laser Thermal Ablation of Primary and Secondary Liver Tumours显示文摘 | E.A Dick R Joarder M de Jode S.D Taylor-Robinson H.C Thomas G.R Foster W.M.W Gedroyc | 2003 | Clinical Radiology2003,,2: | 1 |
| 16 | A generalizeddouble diamond approach to the global competitiveness of Korea and Singapore显示文摘 | Moon H.C Rugman A M Verbeke A | | 0,,02: | 1 |
| 17 | 查看详情显示文摘 | Liu Z.H Qu H.C Gu X.Y Lee K.S Bryan G Kumirov V.K. Hruby V | | 0,,27: | 1 |
| 18 | Individualism and collectivism:Cross-cultrual perspectives on seff-ingroup relationships显示文摘 | Triandis H.C Bontempo R Villareal M.J Asai M & Lucca N | | 0,,: | 1 |
| 19 | Converging measurement of horizontal and vertical individualism and collectivism显示文摘 | Triandis H.C Gelfand M.J | | 0,,: | 1 |
| 20 | Problem-Based Learning Revisited,Introduction of Active and Self-Directed Learning to Reduce Fatigue among Students显示文摘 | Czabanowska Katarzyna Moust Jos H.C Meijer Andre W.M | | 0,,06: | 1 |