|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 上颌四眼圈簧扩弓后对上颌牙齿及上颌骨变化影响的CBCT研究显示文摘目的:使用锥体束CT(CBCT)评估上颌四眼簧慢速扩弓后上颌牙齿及上颌骨宽度的变化。方法:选择13例需要综合性正畸治疗的患者(男5例,女8例),平均年龄(14.4±2.2)岁,使用上颌四眼圈簧扩弓。对患者扩弓前(T1)后(T2)的变化进行CBCT扫描,测量扩弓前后两侧尖牙、第一前磨牙、第二前磨牙和第一磨牙之间的牙冠和根尖之间的宽度,第一磨牙的倾斜度,基骨弓和腭中缝宽度的变化。应用SPSS 17.0软件对测量结果进行配对t检验。结果:四眼圈簧扩弓后牙弓变化明显。4对牙的牙间距分别增加了(2.47±1.05)mm、(2.97±1.90)mm、(2.79±1.21)mm、(3.15±1.15)mm,根尖距分别减小了(1.19±0.40)mm、(2.12±0.68)mm、(2.02±0.65)mm、(1.34±0.63)mm,左侧磨牙倾斜度减小了4.45°±2.86°,右侧磨牙倾斜度减小了4.02°±1.45°,基骨弓宽度增加了(2.37±0.96)mm,腭中缝宽度增加了(1.21±0.50)mm,差异均具有统计学意义(P<0.001)。结论:四眼圈簧扩弓器对上颌牙弓的扩弓主要通过牙齿倾斜移动完成,而非整体移动。 | 张月兰 韦大鹏 Blessing Sayi 杨亚欣 杨亚普 王晨曦 | 2016 | 实用口腔医学杂志2016，32，2： | 10 |
| 2 | SMALL KERNEL4 is required for mitochondrial cox1 transcript editing and seed development in maize显示文摘In land plants,cytidine-to-uridine(C-to-U)editing of organellar transcripts is an important posttranscriptional process,which is considered to remediate DNA genetic mutations to restore the coding of functional proteins.Pentatricopeptide repeat(PPR)proteins have key roles in C-to-U editing.Owing to its large number,however,the biological functions of many PPR proteins remain to be identified.Through characterizing a small kernel4(smk4)mutant,here we report the function of Smk4 and its role in maize growth and development.Null mutation of Smk4 slows plant growth and development,causing small plants,delayed flowering time,and small kernels.Cloning revealed that Smk4 encodes a new E-subclass PPR protein,and localization indicated that SMK4 is exclusively localized in mitochondria.Loss of Smk4 function abolishes C-to-U editing at position 1489 of the cytochrome c oxidase1(cox1)transcript,causing an amino acid change from serine to proline at 497 in Cox1.Cox1 is a core component of mitochondrial complex IV.Indeed,complex IV activity is reduced in the smk4,along with drastically elevated expression of alternative oxidases(AOX).These results indicate that SMK4 functions in the C-to-U editing of cox1-1489,and this editing is crucial for mitochondrial complex IV activity,plant growth,and kernel development in maize. | Hong-Chun Wang Aqib Sayyed Xin-Yuan Liu Yan-Zhuo Yang Feng Sun Yong Wang Miaodi Wang Bao-Cai Tan | 2020 | Journal of Integrative Plant Biology2020，62，6： | 5 |
| 3 | An effcient one-pot multi-component synthesis of 3,4,5-substituted furan-2(5H)-ones catalyzed by tetra-n-butylammonium bisulfate显示文摘A facile one-pot synthesis of 3,4,5-substituted furan-2(5H)-one derivatives from a three-component reaction of aniline derivatives, dialkylacetylenedicarboxylates and aromatic aldehydes under mild conditions using tetra-n-butylammonium bisulfate as a catalyst has been developed. | Razieh Doostmohammadi Malek Taher Maghsoodlou Nourallah Hazeri Sayyed Mostafa Habibi-Khorassani | 2013 | Chinese Chemical Letters2013，24，10： | 5 |
| 4 | 含电弧炉钢渣粗骨料的温拌沥青混合料长期老化评价显示文摘为达到节能减排的目的,用次级材料代替矿物骨料降低沥青混合料的生产温度,该文通过马歇尔稳定度试验、25℃和40℃下的弹性模量试验、间接拉伸强度试验和水稳定性试验,研究添加电弧炉钢渣的温拌沥青混合料的长期性能。结果表明:采用钢渣骨料温拌沥青增加了沥青混合料的马歇尔稳定度、刚度、弹性模量和间接拉伸强度,与对照样品相比,钢渣温拌沥青混合料老化程度降低,性能得到提升。 | 钱国平(编译) 朱海(编译) Sajjad Masoudi Sayyed Mahdi Abtahi Ahmad Gdi | 2018 | 中外公路2018，38，4： | 4 |
| 5 | Effect of nano-particle size on product distribution and kinetic parameters of Fe/Cu/La catalyst in Fischer-Tropsch synthesis显示文摘Effects of nano-particle size on hydrocarbon production rates and distributions for precipitated Fe/Cu/La catalysts in Fischer-Tropsch synthesis were investigated.Nano-structured iron catalyst was prepared by micro-emulsion method.The concept of two superimposed AndersonSchulz-Flory (ASF) distributions has been applied for the representation of the effects of reaction conditions and nano-particles size on kinetics parameters and product distributions.These results reveal that by reducing the particle size of catalyst,the break in ASF distributions was decreased.Also useful different kinetics equations for synthesis of C3 to C9 and C10 to C22 were determined by using α1 and α2 chain growth probabilities. | Ali Nakhaei Pour Mohammad Reza Housaindokht Sayyed Faramarz Tayyari Jamshid Zarkesh | 2010 | Journal of Natural Gas Chemistry2010，19，2： | 4 |
| 6 | An efficient synthesis of 2,2′-arylmethylene bis-(3-hydroxy-5,5-dimethyl-2-cyclohexene-1-one) and 1,8-dioxooctahydroxanthenes using ZnO and ZnO-acetyl chloride显示文摘2,2'-Arylmethylene bis(3-hydroxy-5,5-dimethyl-2-cycIohexene-l-one) 41-s produced from reaction between dimedone with various aldehydes in acetonitrile using ZnO as a catalyst; whereas in the presence of ZnO-acetyl chloride catalysts the reaction is limited to give only 1,8-dioxo-octahydroxanthenes 3a-k in very good yields. | Malek Taher Maghsoodlou Sayyed Mostafa Habibi-Khorassani Zahra Shahkarami Nariman Maleki Mohsen Rostamizadeh | 2010 | Chinese Chemical Letters2010，21，6： | 4 |
| 7 | A generalized supervised classification scheme to produce provincial wetland inventory maps:an application of Google Earth Engine for big geo data processing显示文摘Wetlands are important natural resources due to their numerous ecological services.Consequently,identifying their locations and extents is imperative.The stability,repeatability,cost-effectiveness,multi-scale coverage,and proper spatial resolution imagery of satellites provide a valuable opportunity for their use in various large-scale applications,such as provincial wetland mapping.To do so,it is required to(1)process and classify big geo data(i.e.a large amount of satellite datasets)in a time-and computationally-efficient approach and(2)collect a large amount of field samples.In this study,Google Earth Engine(GEE)and machine learning algorithms were utilized to process thousands of remote sensing images and produce provincial wetland inventory maps of the three Canadian provinces of Manitoba,Quebec,and Newfoundland and Labrador(NL).Additionally,using GEE,a generalized supervised classification method is proposed to produce a regional wetland map from a large area(e.g.,a province)when lacking field samples.In fact,using the field data from only Manitoba and assuming that all wetlands in Canada have similar characteristics,the wetland maps were generated for the other two provinces.The overall classification accuracies for Manitoba,Quebec,and NL were 84%,78%,and 82%,respectively,indicating the high potential of the proposed method for aiding provincial wetland inventory systems. | Meisam Amani Brian Brisco Majid Afshar S.Mohammad Mirmazloumi Sahel Mahdavi Sayyed Mohammad Javad Mirzadeh Weimin Huang Jean Granger | 2019 | Big Earth Data2019，3，4： | 4 |
| 8 | Fischer-Tropsch synthesis by nano-structured iron catalyst显示文摘Effects of nanoscale iron oxide particles on textural structure,reduction,carburization and catalytic behavior of precipitated iron catalyst in Fischer-Tropsch synthesis(FTS) are investigated.Nanostructured iron catalysts were prepared by microemulsion method in two series.Firstly,Fe2O3 ,CuO and La2O3 nanoparticles were prepared separately and were mixed to attain Fe/Cu/La nanostructured catalyst(sep-nano catalyst);Secondly nanostructured catalyst was prepared by co-precipitation in a water-in-oil microemulsion method(mix-nano catalyst).Also,conventional iron catalyst was prepared with common co-precipitation method.Structural characterizations of the catalysts were performed by TEM,XRD,H2 and CO-TPR tests.Particle size of iron oxides for sep-nano and mix-nano catalysts,which were determined by XRD pattern(Scherrer equation) and TEM images was about 20 and 21.6 nm,respectively.Catalyst evaluation was conducted in a fixed-bed stainless steel reactor and compared with conventional iron catalyst.The results revealed that FTS reaction increased while WGS reaction and olefin/paraffin ratio decreased in nanostructured iron catalysts. | Ali Nakhaei Pour Mohammad Reza Housaindokht Sayyed Faramarz Tayyari Jamshid Zarkesh | 2010 | Journal of Natural Gas Chemistry2010，19，3： | 3 |
| 9 | 薰衣草水提取物能改善阿尔茨海默大鼠的空间学习和记忆能力(英文)显示文摘目的阿尔茨海默病(Alzheimer's disease, AD)是主要的神经退行性疾病之一,其特征主要表现为痴呆,包括学习与记忆的衰退。本研究旨在探索薰衣草(唇形科,薰衣草属)水提取物对AD大鼠空间学习和记忆的影响。方法 Wistar大鼠分为对照组和AD 组,通过给大鼠脑室注射10 ?g A?1-42 建立AD模型。20天后,两组大鼠进行为期5天的水迷宫空间记忆采集实验(每天4次),紧接着进行一次空间探索实验。实验结束后,分别给予AD组和对照组大鼠不同剂量的薰衣草水提取物(50、100、200 mg/kg) 或 0.4 mL/kg 蒸馏水,每天一次共20天。随后,重复上述水迷宫实验。结果在水迷宫实验的第一阶段,AD组大鼠找到平台的潜伏期显著高于对照组大鼠,而在第二阶段,接受蒸馏水注射的对照和AD大鼠找到平台的潜伏期没有差异,说明水迷宫运动本身能提高AD大鼠的空间学习能力。在第二阶段空间记忆采集实验中,与接受蒸馏水注射的同类大鼠相比,接受薰衣草水提取物注射的对照和AD大鼠找到平台的潜伏期显著降低。此外,200 mg/kg 薰衣草水提取物能显著提高对照和AD大鼠的空间探索能力。结论薰衣草水提取物能有效逆转AD 大鼠空间学习功能的损伤。 | Masoud Soheili Kashani Mostafa Rezaei Tavirani Sayyed Alireza Talaei Mahmoud Salami | 2011 | Neuroscience Bulletin2011，27，2： | 2 |
| 10 | One-pot five-component synthesis of highly functionalized piperidines using oxalic acid dihydrate as a homogenous catalyst显示文摘一个有效绿协议为准备被描述高度经由一个一个壶的 functionalized 哌啶在面对象在在周围的温度的乙醇的催化剂的草酸酸二水合物的芳香的醛,苯胺和 -ketoesters 之间的五部件的反应。结构以及这些混合物的相对立体化学被单个 X 光检查结晶的分析证实。 | Seyed Sajad Sajadikhah Malek Taher Maghsoodlou Nourallah Hazeri Sayyed Mostafa Habibi-Khorassani Anthony C.Willis | 2012 | Chinese Chemical Letters2012，23，5： | 2 |
| 11 | Kinetics studies of nano-structured iron catalyst in Fischer-Tropsch synthesis显示文摘Kinetic parameters of nano-structured iron catalyst in Fischer-Tropsch synthesis (FTS) were studied in a wide range of synthesis gas conversions and compared with conventional catalyst.The conventional Fe/Cu/La catalyst was prepared by co-precipitation of Fe and Cu nitrates in aqueous media and Fe/Cu/La nanostructure catalyst was prepared by co-precipitation in a water-in-oil micro-emulsion.Nano-structured iron catalyst shows higher FTS activity.Kinetic results indicated that in FTS rate expression,the rate constant (k) increased and adsorption parameter (b) decreased by decreasing the catalyst particle size from conventional to nano-structured.Since increasing in the rate constant and decreasing in the adsorption parameter affected the FTS rate in parallel direction,the particle size of catalyst showed complicated effects on kinetic parameters of FTS reaction. | Ali Nakhaei Pour Mohammad Reza Housaindokht Sayyed Faramarz Tayyari Jamshid Zarkesh | 2010 | Journal of Natural Gas Chemistry2010，19，4： | 2 |
| 12 | Deactivation studies of nano-structured iron catalyst in Fischer-Tropsch synthesis显示文摘A nano-structured iron catalyst for syngas conversion to hydrocarbons in Fischer-Tropsch synthesis(FTS) was prepared by micro-emulsion method.Compositions of bulk iron phase and phase transformations of carbonaceous species during catalyst deactivation in FTS reaction were characterized by temperature-programmed surface reaction with hydrogen(TPSR-H 2 ),and XRD techniques.Many carbonaceous species on surface and bulk of the nano-structured iron catalysts were completely identified by combined TPSR-H 2 and XRD spectra and which were compared with those recorded on conventional co-precipitated iron catalyst.The results reveal that the catalyst deactivation results from the formation of inactive carbide phases and surface carbonaceous species like graphite,and it will be increased when the particle size of iron oxides was reduced in FTS iron catalyst. | Ali Nakhaei Pour Mohammad Reza Housaindokht Sayyed Faramarz Tayyari Jamshid Zarkesh | 2010 | Journal of Natural Gas Chemistry2010，19，3： | 2 |
| 13 | Anti-Toll-like receptor 2 antibody inhibits nuclear factor kappa B activation and attenuates cardiac damage in high-fat-feeding rats显示文摘Long-time con sumption of high-fat food is a direct cause of cardiovascular diseases, and high-fatrelated inflammation plays an important role in it. Toll-like receptors (TLRs), especially TLR2 and TLR4, play important roles in high-fat-related inflammation. However, the impact of TLR2 on high-fatassociated cardiovascular complications is still unknown. In this study, we try to investigate the relationship between TLR2 and high-fat-related cardiac injury. SD rats were allocated to either a control group which were fed with normal diet or a high-fat group which were fed with high-fat diet for 5 months. At the last mon th, rats fed with high-fat diet were intraperitoneally injected with control normal mouse IgG or anti-TLR2 antibody. Heart tissues were collected for further analysis. RT-qPCR and western blot analysis results revealed that TLR2 expression was increased in the heart tissues from rats fed with high-fat diet and anti-TLR2 antibody had no effect on TLR2 expression. However, anti- TLR2 antibody alleviated masson staining area, levels of TGF-pi and Collagen I mRNA, and decreased TUNEL-positive myocardial cells and caspase-3 activity, suggesting that anti-TLR2 antibody protected cardiac cells against high-fat-induced cardiac fibrosis and cell apoptosis. By using immunohistochemistry, RT-qPCR and ELISA, we found that anti-TLR2 antibody blocked NF-kB activation, inhibited the expression of inflammatory factors such as TNF-a, IL-1,IL-6 and IL-18 in the heart tissues from rats fed with high-fat diet. These results hinted that anti-TLR2 antibody might exert its protective effect via inhibition of the TLR2/NF-KB/inflammation pathway. Our findings suggest that anti-TLR2 antibody has a preventive function against high-fat-induced deleterious effects in the heart, and anti-TLR2 antibody may be used as an attractive therapeutic option for high-fat-induced cardiac injury. | Wanzheng Wang Litao Wu Xiaojuan Du Fujun Zhang Sayyed Hanif Ullah Ting Lei Dongming Li Xiaofei Yan | 2019 | Acta Biochimica et Biophysica Sinica2019，51，4： | 2 |
| 14 | Comparison of experimental and theoretical radiation shielding parameters of several environmentally friendly materials显示文摘In this study, the gamma radiation shielding features of several environmentally friendly materials were investigated. For this purpose, several attenuation parameters, such as the mass attenuation coefficient (l=q), radiation protection efficiency (RPE), and effective atomic number (Zeff) were determined experimentally and compared with numerical data obtained using WinXCom software. In the measurements, the emitted gamma photons were counted by a gamma spectrometer equipped with an HPGe detector using 22Na, 54Mn, 57Co, 60Co, 133Ba, and 137Cs radioactive point sources in the energy region of 81–1333 keV. The obtained results indicate that the l=q and RPE values of the samples decrease with an increase in photon energy. The experimental values are in good agreement with those obtained using WinXCom software. The RPE and Zeff results show that among the studied materials, the NaY0.77Yb0.20Er0.03F4 sample has the best gamma radiation shielding effectiveness. | F. Akman1 O. Agar M. R. Kacal M. I. Sayyed | 2019 | Nuclear Science and Techniques2019，30，7： | 2 |
| 15 | Entirely green protocol for the synthesis of β-aminoketones using saccharose as a homogenous catalyst显示文摘Saccharose was applied as an efficient and homogenous catalyst for a one-pot,three-component Mannich reaction for the formation ofβ-aminoketones from aromatic aldehydes,anilines,and acetophenone at ambient temperature in excellent yields.This protocol has the following advantages: mild conditions,high yields,clean reaction profiles,operational simplicity,and environmentally benign and simple work-up procedures. | Mir Rasul Mousavi Nourallah Hazeri Malek Taher Maghsoodlou Sajjad Salahi Sayyed Mostafa Habibi-Khorassani | 2013 | Chinese Chemical Letters2013，24，5： | 2 |
| 16 | Association of Helicobacter pylori infection with acute myocardial infarction显示文摘 | Zohreh Khodaii Hosain Vakili Sayyed Mohammad Hossein Ghaderian Reza Akbarzadeh Najar Akram Sadat Tabatabaei Panah | 2011 | Coronary Artery Disease2011，，1： | 2 |
| 17 | Kinetics of the water-gas shift reaction in Fischer-Tropsch synthesis over a nano-structured iron catalyst显示文摘Based on formate and direct oxidation mechanisms,three Langmuir-Hinshelwood-Hougen-Watson (LHHW) kinetic models of the water-gasshift (WGS) reaction over a nano-structured iron catalyst under Fischer-Tropsch synthesis (FTS) reaction conditions were derived and compared with those over the conventional catalyst.The conventional and nanostructured Fe/Cu/La/Si catalysts were prepared by co-precipitation of Fe and Cu nitrates in aqueous media and water-oil micro-emulsion,respectively.The WGS kinetic data were measured by experiments over a wide range of reaction conditions and comparisons were also made for various rate equations.WGS rate expressions based on the formate mechanism with the assumption that the formation of formate is rate determining step were found to be the best. | Ali Nakhaei Pour Mohammad Reza Housaindokht Sayyed Faramarz Tayyari Jamshid Zarkesh | 2010 | Journal of Natural Gas Chemistry2010，19，4： | 2 |
| 18 | Genetics and Evidence for an Esterase-associated Mechanism of Resistance to lndoxacarb in a Field Population of Diamondback Moth (Lepidoptera: Plutellidae)显示文摘 | SAYYED A H WRIGHE D J | 2006 | Pest Management Science2006，62，： | 1 |
| 19 | Particleboard manufacturing: An innovative way to recycle pa- per sludge 显示文摘 | Asghar Taramian Kazem Doosthoseini Sayyed Ahmad Mirshokraii | 2007 | Waste Management2007，，27： | 1 |
| 20 | C-reactive protein (CRP) gene polymorphisms: implication in CRP plasma levels and susceptibility to acute myocardial infarction显示文摘 | Reza Akbarzadeh Najar Sayyed Mohammad Hossein Ghaderian Akram Sadat Tabatabaei Panah | 2012 | Molecular Biology Reports2012，，4： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员