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| 1 | Current global trends in the incidence of pediatric-onset inflammatory bowel disease显示文摘AIM To perform a comprehensive review and provide an up-to-date synopsis of the incidence and trends of inflammatory bowel disease(IBD). METHODS We systematically searched the MEDLINE(source Pub Med), EMBASE and Cochrane Library databases in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines(period: 1985-2018) to identify studies reporting population-based data on the incidence of pediatriconset(< 19 years at diagnosis) IBD in full manuscripts. Two authors carried out screening and data extraction. Choropleth interactive maps and temporal trends were used to illustrate the international differences and incidences of and changes in IBD and subtypes.RESULTS In total, one hundred forty studies reporting data from 38 countries were considered in this review. The highest annual pediatric incidences of IBD were 23/100000 person-years in Europe, 15.2/100000 in North America, and 11.4/100000 in Asia/the Middle East and Oceania. The highest annual incidences of Crohn's disease(CD) were 13.9/100000 in North America and 12.3/100000 in Europe. The highest annual incidences of ulcerative colitis(UC) were 15.0/100000 in Europe and 10.6/100000 in North America. The highest annual incidences of IBD-unclassified(IBD-U) were 3.6/100000 in Europe and 2.1/100000 in North America. In the time-trend analyses, 67% of CD, 46% of UC and 11% of IBD-U studies reported an increasing incidence(P < 0.05). The risk of IBD is increasing among firstgeneration of migrant populations.CONCLUSION Globally, the incidence of IBD varies greatly by geographical areas. The steadily increasing incidence of pediatric IBD over time indicates its emergence as a global disease, suggesting that studies should investigate the environmental risk factors among pediatric cohorts. | Josef Sykora Renta Pomahacov Marcela Kreslová Dominika Cvalínová Premysl Stych Jan Schwarz | 2018 | World Journal of Gastroenterology2018，24，25： | 27 |
| 2 | Electronic structure of the SrAl_2O_4:Eu^(2+) persistent luminescence material显示文摘The electronic structure of the strontium aluminate (SrAl2O4:Eu2+) materials was studied with a combined experimental and theoretical approach. The UV-VUV synchrotron radiation was applied in the experimental study while the electronic structure of the non-optimized and optimized crystal structure were investigated theoretically by using the density functional theory. The structure of the va- lence and conduction bands as well as the band gap energy of the material together with the position of the Eu2+ 4f7 8S7/2 ground state were calculated. The calculated band gap energy (6.4 eV) agreed well with the experimental value of 6.6 eV. The valence band consisted mainly of oxygen states whereas the bottom of the conduction band of strontium states. In agreement with the experimental results, the calculated 4f7 8S7/2 ground state of Eu2+ lies in the energy gap of the host. The position of the 4f7 ground state depended on the Coulomb repulsion strength. The position of the 4f7 ground state with respect to the valence and conduction bands was discussed using theoretical and experimental evidence available. | Jorma Hls Taneli Laamanen Mika Lastusaari Janne Niittykoski Pavel Novák | 2009 | Journal of Rare Earths2009，27，4： | 9 |
| 3 | 机械化学法制备的Al/Ce复合氧化物负载NiMo催化剂的加氢脱硫活性(英文)显示文摘将Al和/或Ce的硝酸盐与NH_4HCO_3球磨混合,采用机械化学法制备了Al_2O_3-CeO_2载体(其中Ce含量为1-10 wt%),再以杂多钼酸盐(NH_4)_4NiMo_6O_(24)为活性金属Ni和Mo的前驱体,通过浸渍法制备NiMo_6/Al_2O_3-CeO_2催化剂,并将其用于1-苯并噻吩(BT)的加氢脱硫(HDS)反应中.运用化学分析、X射线衍射、N_2吸附-脱附法、H_2程序升温还原、NH_3程序升温脱附和X射线光电子能谱对催化剂的物化性质进行了表征.结果表明,催化剂的酸性随着载体中Ce含量的增加而下降.Ce修饰的Al_2O_3载体表面的NiS/MoS原子比下降了2倍.NiMo_6/Al_2O_3催化剂表现出最高的HDS活性(以单位重量催化剂计),其酸性和表面MoO_xS_y物种的浓度(Mo^(5+)浓度)也最高;当催化剂中Ce含量逐渐增加到10 wt%以上时,其活性逐渐将为0.与浸渍法制得的参比催化剂相比,前驱体和催化剂组成相同的情况下,采用机械化学法制得的所有催化剂活性明显提高. | Květa Jirátová Alla Spojakina Luděk Kaluza Radostina Palcheva Jana Balabánová Georgi Tyuliev | 2016 | Chinese Journal of Catalysis2016，37，2： | 6 |
| 4 | Synchrotron radiation investigations of the Sr_2MgSi_2O_7:Eu^(2+),R^(3+) persistent luminescence materials显示文摘The electronic and defect energy level structure of polycrystalline Sr2MgSi2O7:Eu2+,R3+ persistent luminescence materials were studied with thermoluminescence and different synchrotron radiation spectroscopies (UV-VUV emission and excitation, X-ray absorption near-edge spectroscopy (XANES) and extended X-ray absorption fine structure (EXAFS)). Special attention was paid on the effect of the R3+ co-dopants on the persistent luminescence properties of the materials. Theoretical calculations using the density functional theory (DFT) were carried out simultaneously with the experimental work. The experimental band gap energy (Eg) value of ca. 7.1 eV agreed very well with the DFT value of 6.7 eV. The variation of the Eg value was attempted to relate with the trap structure as well as with the different properties of the R3+ co-dopants. The trap level energy distribution depended strongly on the R3+ co-dopant except for the shallowest trap energy above the room temperature remaining practically the same, however. The different processes in the mechanism of persistent luminescence from Sr2MgSi2O7:Eu2+,R3+ were assembled and their contributions discussed. | Tuomas Aitasalo Jukka Hassinen Jorma Hls Taneli Laamanen Mika Lastusaari Marja Malkamki Janne Niittykoski Pavel Novák | 2009 | Journal of Rare Earths2009，27，4： | 5 |
| 5 | 木质素腐植酸的结构特征显示文摘从木质素磺酸盐氧化和水解转化后的产物——木质素腐植酸盐中分离出腐植酸组分,并用化学和光谱学(UV/VIS,FT-IR,^(13)C-NMR光谱学)的方法对其组成和结构进行表征。同时,从褐煤和山地云杉林森林土有机层中分离出腐植酸,以作为对照。与其它来源的腐植酸相比,木质素腐植酸(LHHA)羧基含量相对较低,而其酸性在一定程度上是通过磺酸基所体现出来的。木质素及其相应腐殖质的^(13)C-NMR光谱在55.9 ppm处有明显的位移,这是其甲氧基碳的信号,而其它烷氧基碳的数量非常有限,如脂肪碳。由于这些类型的碳含量相对较低,木质素腐植酸的芳香度较高,为60.6%。相比天然的腐植酸,木质素磺酸盐经热处理后所得的木质素腐植酸盐则被认为是一种工业化生产的天然腐植物质的类似物。根据化学和光谱学数据评估结果,阐明了从木质素腐植酸盐提取的腐植酸的结构特征,且提出了其可能的化学结构,从而描述了分离组分的典型'平均'特征。 | FrantiSek Novák Martina Sestauberová Richard Hrabal 张水勤(译) 袁亮(译) 赵秉强(译) | 2016 | 腐植酸2016，0，1： | 3 |
| 6 | 多壁纳米碳管对磷酸铁锂正极材料热稳定性及表面形貌的影响(英文)显示文摘合成了一种新型的LiFePO4/多壁纳米碳管(MWCNTs)复合正极材料。通过MWCNTs和PPy-PEG粘结剂有机地在LiFePO4颗粒间构成三维网络导电结构,并借助SEM、TGA和高分辨裂解气相色谱,研究了LiFePO4-MWCNT正极材料的表面形貌和热稳定性。结果表明,500℃下该材料的热分解程度非常小,说明MWCNTs和PPy-PEG的复合是提高LiFePO4正极材料的热稳定性和改善表面形貌的有效途径。 | Mária Filkusová Andrea Fedorková Renáta Oriňáková Andrej Oriňák Zuzana Nováková Lenka Skantárová | 2013 | 新型炭材料2013，28，1： | 3 |
| 7 | Regulated upon activation,normal T cell expressed and secreted(RANTES)levels in the peripheral blood of patients with Alzheimer’s disease显示文摘Alzheimer’s disease(AD)is the most common type of dementia,but it is very difficult to diagnose with certainty,so many AD studies have attempted to find early and relevant diagnostic markers.Regulated upon activation,normal T cell expressed and secreted(RANTES,also known as C-C chemokine ligand)is a chemokine involved in the migration of T cells and other lymphoid cells.Changes in RANTES levels and its expression in blood or in cerebrospinal fluid have been reported in some neurodegenerative diseases,such as Parkinson’s disease and multiple sclerosis,but also in metabolic diseases in which inflammation plays a role.The aim of this observational study was to assess RANTES levels in peripheral blood as clinical indicators of AD.Plasma levels of RANTES were investigated in 85 AD patients in a relatively early phase of AD(median 8.5 months after diagnosis;39 men and 46 women;average age 75.7 years),and in 78 control subjects(24 men and 54 women;average age 66 years).We found much higher plasma levels of RANTES in AD patients compared to controls.A negative correlation of RANTES levels with age,disease duration,Fazekas scale score,and the medial temporal lobe atrophy(MTA)score(Scheltens’s scale)was found in AD patients,i.e.,the higher levels corresponded to earlier stages of the disease.Plasma RANTES levels were not correlated with cognitive scores.In AD patients,RANTES levels were positively correlated with the levels of pro-inflammatory cytokines interleukin-6 and tumor necrosis factor-α,which is consistent with the wellknown fact that AD is associated with inflammatory processes.RANTES levels were also positively correlated with insulin levels in AD patients,with insulin resistance(HOMA-R)and pancreatic beta cell function(HOMA-F).This study evaluated several clinical and metabolic factors that may affect plasma levels of RANTES,but these factors could not explain the increases in RANTES levels observed in AD patients.Plasma levels of RANTES appear to be an interesting peripheral marker for early stages of AD.The study was approved by the Ethics Committee of Institute of Endocrinology,Prague,Czech Republic on July 22,2011. | Gabriela Vacínová Daniela Vejražkova Robert Rusina Iva Holmerová Hana Vaňková Eva Jarolímová Josef Včelák Běla Bendlová Markéta Vaňková | 2021 | Neural Regeneration Research2021，16，4： | 3 |
| 8 | Defect aggregates in the Sr_2MgSi_2O_7 persistent luminescence material显示文摘The crystal and electronic structure of the Eu2+ doped and defect containing Sr2MgSi2O7 persistent luminescence material were studied using the density functional theory(DFT) .The defects may act as energy storage or even luminescence quenching centres in these materials,however their role is very difficult to confirm experimentally.The probability of vacancy formation was studied using the total en-ergy of the defect containing host.Significant structural modifications in the environment of the isolated defects,especially the strontium va-cancy,as well as defect aggregates were found.The experimental band gap energy of Sr2MgSi2O7 was well reproduced by the calculations.The defect induced electron traps close to the host's conduction band were found to act as energy storage sites contributing to its efficient per-sistent luminescence.The interactions between the defects were found to modify both the Eu2+ 4f7 ground state energy as well as the trap structure.The effect of charge compensation induced by the rare earth co-doping on the defect structure and energy storage properties of the persistent luminescence materials was discussed. | Jorma Hls Taneli Laamanen Mika Lastusaari Pavel Novák | 2011 | Journal of Rare Earths2011，29，12： | 2 |
| 9 | Study of styrene butadiene rubber and sodium methyl cellulose as binder for negative electrodes in lithium-ion batteries显示文摘 | H. Buqa M. Holzapfel F. Krumeich C. Veit P. Novák | 2006 | Journal of Power Sources2006，，1： | 2 |
| 10 | Catalytic wet peroxide oxidation of phenolic solutions over Fe2O3/CeO2 and WO3/CeO2 catalyst systems显示文摘 | Massa P Da nov A Cabello F M | 2008 | Cared Comm2008，，9： | 1 |
| 11 | Microcalorimetric Measurements of the Solvent Contribution to the Entropy Changes upon Electrochemical Lithium Bulk Deposition<link href='#nss'/>显示文摘 | Matthias J. Schmid Katrin R. Bickel Petr Novák Rolf Schuster | 2013 | Angew Chem Int Ed2013，，50： | 1 |
| 12 | A review of current trends and advances in modern bio-analytical methods:chromatography and sample preparation显示文摘 | Nováková L Vlcková H | 2009 | Anal Chim Acta2009，656，12： | 1 |
| 13 | Abdominal sacrocolpo-pexy-simple and still actual method in the treatment of vaginal vault prolapse?显示文摘 | Chmel R NováckováM Horcicka L | 2008 | Ceska Gynekol2008，73，1： | 1 |
| 14 | Determination of uremic solutes in biological fluids of chronic kidney disease patients by HPLC assay显示文摘 | Calaf R Cerini C Génovésio C | 2011 | Journal of Chromatography B2011，879，23： | 1 |
| 15 | Alteredmetabolism of copper,zinc,and magnesium is associatedwith increased levels of glycated hemoglobin in patientswith diabetes mellitus显示文摘 | Viktorínová A Toserová E Krizko M | 2009 | Metabolism2009，58，10： | 1 |
| 16 | Influence of UV-Curing Conditions on Polymerization Kinetics and Gloss of Urethane Acrylate Coatings显示文摘 | Viera Jan(c)ovi(c)ová Milan Mikula Bohuslava Havlínová | 2013 | Progress in Organic Coatings2013，76，0203： | 1 |
| 17 | Activity of some 3-formylchromone derivatives on the induction of chloroplast-free mutants in Englena gracilis显示文摘 | Pavlína Foltínová Margita Lácová Duan Loos | 2000 | IL Farmaco2000，55，1： | 1 |
| 18 | Elevated Levels of Anti- Helicobacter pylori Antibodies in Henoch–Sch?nlein Purpura显示文摘 | János Novák Zoltán Szekanecz Judit Sebesi Alajos Takáts Pál Demeter László Bene Sándor Sipka Zoltán Csiki | 2003 | Autoimmunity2003，，5： | 1 |
| 19 | Insertion electrode materials for rechargeable lithium batteries 显示文摘 | WINTER M BESENHARD J O SPAHR M E NOV K P | 1998 | Advanced Materials1998，10，10： | 1 |
| 20 | Exploring Motivations for Contributing to Open Source Initia- tives:The Roles of Contribution Context and Personal Values显示文摘 | Or~g S Nov O | 2008 | Computers in Human Behavior2008，24，5： | 1 |
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