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| 1 | Association of p53/p21 expression with cigarette smoking and prognosis in esophageal squamous cell carcinoma patients显示文摘factors,such as cigarette smoking,in esophageal squamous cell carcinoma(ESCC)in northeastern Iran,a region with a high incidence of ESCC.METHODS:The expression of p53 and p21 proteins was investigated immunohistochemically in tumor tissue from 80 ESCC patients and in 60 available paraffinembedded blocks of adjacent normal specimens from the cases,along with normal esophageal tissue from 80 healthy subjects.RESULTS:Positive expression of p53 protein was detected in 56.2%(45/80)of ESCC cases,and in none of the normal esophageal tissue of the control group(P<0.001).Furthermore,73.8%(59/80)of ESCC cases and 43.8%(35/80)of controls had positive expression of p21 protein(P<0.001).Cigarette smoking was significantly associated with p53 over-expression in ESCC cases(P=0.010,OR=3.64;95%CI:1.32-10.02).p21 over-expression was associated with poorer clinical outcome among the ESCC patients(P=0.009).CONCLUSION:Over-expression of p53 in association with cigarette smoking may play a critical role in ESCC carcinogenesis among this high-risk population of northeastern Iran.Furthermore,p21 over-expression was found to be associated with poor prognosis,specifically in the operable ESCC patients. | Noushin Taghavi Firouzeh Biramijamal Masoud Sotoudeh Omeed Moaven Hooman Khademi Mohammad Reza Abbaszadegan Reza Malekzadeh | 2010 | World Journal of Gastroenterology2010，16，39： | 10 |
| 2 | A new boundary element solution to evaluate the geometric effects of the canyon site on the displacement response spectrum显示文摘This paper presents a step-by-step procedure using the three-dimensional boundary element approach to study the behavior of semi-circular canyons under seismic shear waves. The boundary element code TDASC allows utilization for various canyon geometries, evaluation of concurrent seismic waves and calculation of the ground motions on canyons due to an excitation at any arbitrary point of the incident field. Considering the widening ratio of the canyon(including prismatic, semi-prismatic and non-prismatic canyons), wave characteristics(wavelength, dimensionless period, direction) and maximum amplification pattern, the solution was applied to carry out a series of parametric studies. It was shown that canyon form can significantly affect the displacement amplification, especially at the points located on its edges. By increasing the wave dimensionless frequency(η > 1), the amplification pattern becomes more complex. On the basis of the results from a variety of considered cases, a new expression has been presented for the limiting wavelength beyond which the widening of the canyon will not have a major effect on the displacement amplification. To verify the reliability of the proposed approach, the obtained results, expressed in terms of displacement amplitude, were compared with those from the available published literature and a reasonably good agreement was observed. | Reza Tarinejad Mohsen Isari Abbasali Taghavi Ghalesari | 2019 | Earthquake Engineering and Engineering Vibration2019，18，2： | 6 |
| 3 | Association of H pylori cagA and vacA genotypes and IL-8 gene polymorphisms with clinical outcome of infection in Iranian patients with gastrointestinal diseases显示文摘瞄准:发现是否在与 cagA 地位一起的 IL-8 基因的功能的倡导者多型性和在基因影响的休假的多型性在伊朗的病人的疾病的类型由 H pylori 感染了。方法:IL-8 -251 A/T 多型性在有经历上面的胃肠的内视镜检查法的 H pylori 感染的 233 个病人的一件样品是由 oligonucleotide 等位基因 specific PCR (ASO-PCR ) 的 genotyped。在基因也是的休假的 cagA 基因和多型性的存在由 PCR 决定了。有胃炎,消化性溃疡以及胃的癌症的发展的这些基因多型性的协会被测试。结果:当有不同临床的表明的病人根据 cagA 基因或各种各样的休假 A 遗传型的存在被比较时,仅仅休假 A 遗传型在胃炎,消化性溃疡和胃的癌症病人之中是显著地不同的(chi 2 = 17.8;P = 0.001 ) 。而且,在在有胃的癌症和良性的疾病的病人之间的 IL-8 -251 A/T 遗传型的频率有有效差量(chi 2 = 10.47;P = 0.005 ) 。结论:在 H pylori 休假的 IL-8 -251 A/T 多型性和多型性基因涉及限制感染结果到胃炎和消化性溃疡或在在伊朗的病人赞成癌症发作。 | Eskandar Kamali-Sarvestani Abdulah Bazargani Malihe Masoudian Kamran Lankarani Ali-Reza Taghavi Mehdi Saberifiroozi | 2006 | World Journal of Gastroenterology2006，12，32： | 6 |
| 4 | Occult hepatitis B virus infection and cryptogenic chronic hepatitis in an area with intermediate prevalence of HBV infection显示文摘瞄准:在伊朗的病人在长期的肝炎的致病估计秘密 HBV 感染的可能的角色。方法:在自体免疫、新陈代谢、病毒的病原学的排除以后,有 histologic 和长期的肝炎和否定 HBsAg 的生物化学的特征的 104 个连续成年病人在学习被注册。有 150 x 10 的敏感(3 ) 的质的 PCR copies/L,用二,为 Pre-S 和核心区域的教材被使用在病人的浆液测量 HBV DNA 的存在。结果:所有 104 个病人完成了学习。质的 HBV DNA 在二个病人(1.9%) 是积极的。结论:秘密 HBV 感染在伊朗的病人在起因不明的长期的肝炎的致病有可以忽略的角色。 | Mohammad Javad Kaviani Behzad Behbahani Mohammad Jafar Mosallaii Fatemeh Sari-Aslani Seyed Alireza Taghavi | 2006 | World Journal of Gastroenterology2006，12，31： | 6 |
| 5 | Synthesis and Characterization of Heterocyclic Functionalized Polymers by Click Reaction: Preparation of Magnetic Nanocomposites and Studies on Their Thermal, Mechanical, Photophysical and Metal Ions Removal Properties显示文摘This work reports synthesis and characterization of heterocyclic functionalized polymers, poly(triazole-etherimidazole)s(PTAEI), from a dialkyne-terminated compound, 3-(4,5-bis(4-(propargyloxy)phenyl)-1H-imidazol-2-yl)-9-ethyl-9H-carbazole, by using click reaction. PTAEIs were characterized and their properties such as solubility, thermal, mechanical, photophysical and metal ions adsorption were investigated. These polymers had weight average molar masses(Mw) in the range of 19100-26700 g/mol, exhibited excellent solubility in polar aprotic solvents and formed low-colored flexible thin films by solution casting method. They exhibited good thermal stability with glass transition temperatures(Tg) between 160 °C and 211 °C and 10% weight loss temperatures(T10%) in the range of 308-426 °C. Nanocomposites of PTAEIs with epoxide-terminated Fe3O4 showed that strong interfacial interaction between inorganic particles and the polymer matrix contributed to the enhanced thermal and mechanical properties. The photoluminescence intensity of the PTAEIs increased and the spectra red shifted with increasing Fe3O4 content. The PTAEIs and nanocomposites were tested for their extraction capability of metal ions from aqueous solutions either individually or in the mixture. | Mousa Ghaemy Sahar Shabzendedar Mehdi Taghavi | 2015 | Chinese Journal of Polymer Science2015，33，2： | 5 |
| 6 | An overview of carbon nanotubes role in heavy metals removal from wastewater显示文摘The scarcity of water, mainly in arid and semiarid areas of the world is exerting exceptional pressure on sources and necessitates offering satisfactory water for human and different uses. Water recycle/reuse has confirmed to be successful and promising in reliable water delivery. For that reason, attention is being paid to the effective treatment of alternative resources of water (other than fresh water) which includes seawater, storm water, wastewater (e.g., dealt with sewage water), and industrial wastewater. Carbon nanotubes (CNTs) are called the technology of 21st century. Nowadays CNTs have been widely used for adsorption of heavy metals from water/ wastewater due to their unique physical and chemical properties. This paper reviews some recent progress (from 2013 to 2018) in the application of CNTs for the adsorption of heavy metals in order to remove toxic pollutants from contaminated water. CNTs are expected to be a promising adsorbent in the future because of its high adsorption potential in comparison to many traditional adsorbents. | Leila Ouni Ali Ramazani Saeid Taghavi Fardood | 2019 | Frontiers of Chemical Science and Engineering2019，13，2： | 5 |
| 7 | Prediction of Boundary Layer Transition Based on Modeling of Laminar Fluctuations Using RANS Approach显示文摘This article presents a linear eddy-viscosity turbulence model for predicting bypass and natural transition in boundary layers by using Reynolds-averaged Navier-Stokes (RANS) equations. The model includes three transport equations, separately, to compute laminar kinetic energy, turbulent kinetic energy, and dissipation rate in a flow field. It needs neither correlations of intermittency factors nor knowledge of the transition onset. Two transition tests are carried out: flat plate boundary layer under zero and non-zero pressure gradients with different freestream turbulence intensities, and transitional flow over a wind turbine blade at a chord Reynolds number of 3×106. Results are presented in terms of skin friction coefficients. Comparison with the experimental data from both tests evidences a good agreement there is between them. | Reza Taghavi Z. Mahmood Salary Amir Kolaei | 2009 | Chinese Journal of Aeronautics2009，22，2： | 5 |
| 8 | Comparing the deactivation behaviour of Co/CNT and Co/γ-Al_2O_3 nano catalysts in Fischer-Tropsch synthesis显示文摘An extensive study of Fischer-Tropsch (FT) synthesis on cobalt nano particles supported on γ-alumina and carbon nanotubes (CNTs) catalysts is reported.20 wt% of cobalt is loaded on the supports by impregnation method.The deactivation of the two catalysts was studied at 220 C,2 MPa and 2.7 L/h feed flow rate using a fixed bed micro-reactor.The calcined fresh and used catalysts were characterized extensively and different sources of catalyst deactivation were identified.Formation of cobalt-support mixed oxides in the form of xCoO yAl2O3 and cobalt aluminates formation were the main sources of the Co/γ-Al2O3 catalyst deactivation.However sintering and cluster growth of cobalt nano particles are the main sources of the Co/CNTs catalyst deactivation.In the case of the Co/γ-Al2O3 catalyst,after 720 h on stream of continuous FT synthesis the average cobalt nano particles diameter increased from 15.9 to 18.4 nm,whereas,under the same reaction conditions the average cobalt nano particles diameter of the Co/CNTs increased from 11.2 to 17.8 nm.Although,the initial FT activity of the Co/CNTs was 26% higher than that of the Co/γ-Al2O3,the FT activity over the Co/CNTs after 720 h on stream decreased by 49% and that over the Co/γ-Al2O3 by 32%.For the Co/γ-Al2O3 catalyst 6.7% of total activity loss and for the Co/CNTs catalyst 11.6% of total activity loss cannot be recovered after regeneration of the catalyst at the same conditions of the first regeneration step.It is concluded that using CNTs as cobalt catalyst support is beneficial in carbon utilization as compared to γ-Al2O3 support,but the Co/CNTs catalyst is more susceptible for deactivation. | Ahmad Tavasoli Saba Karimi Somayeh Taghavi Zahra Zolfaghari Hamideh Amirfirouzkouhi | 2012 | Journal of Natural Gas Chemistry2012，21，5： | 4 |
| 9 | Promoter polymorphism of transforming growth factor-β1 gene and ulcerative colitis显示文摘AIM: To elucidate the possible difference in two promoter polymorphisms of the transforming growth factor-β1 (TGF-β1) gene (-800G > A, -509C > T) between ulcerative colitis (UC) patients and normal subjects.METHODS: A total of 155 patients with established ulcerative colitis and 139 normal subjects were selected as controls. Two single nucleotide polymorphisms within the promoter region of TGF-β1 gene (-509C > T and -800G > A) were genotyped using PCR-RFLP. RESULTS: There was a statistically significant difference in genotype and allele frequency distributions between UC patients and controls for the -800G > A polymorphism of the TGF-β1 gene (P < 0.05). The frequency of the TGF-β1 gene polymorphism at position -800 showed that the AA genotype and the allele A frequencies significantly differed between the patients and healthy controls (P < 0.05). At position -509, there was no statically significant difference in genotype and allele frequency between the patients and control subjects.CONCLUSION: The results of our study indicate that there is a significant difference in both allele and genotype frequency at position -800G > A of TGF-β1 gene promoter between Iranian patients with UC and normal subjects. | B Tamizifar KB Lankarani S Naeimi M Rismankar Zadeh A Taghavi A Ghaderi | 2008 | World Journal of Gastroenterology2008，14，2： | 4 |
| 10 | Thickness determination of MoS2,MoSe2,WS2 and WSe2 on transparent stamps used for deterministic transfer of 2D materials显示文摘Here,we propose a method to determine the thickness of the most common transition metal dichalcogenides (TMDCs) placed on the surface of transparent stamps,used for the deterministic placement of two-dimensional materials,by analyzing the red,green and blue channels of transmission-mode optical microscopy images of the samples.In particular,the blue channel transmittance shows a large and monotonic thickness dependence,making it a very convenient probe of the flake thickness.The method proves to be robust given the small flake-to-flake variation and the insensitivity to doping changes of MoS2.We also tested the method for MoSe2,WS2 and WSe2.These results provide a reference guide to identify the number of layers of this family of materials on transparent substrates only using optical microscopy. | Najme S. Taghavi Patricia Gant Peng Huang Iris Niehues Robert Schmidt Steffen Michaelis de Vasconcellos Rudolf Bratschitsch Mar Garcia-Hernandez Riccardo Frisenda Andres Castellanos-Gomez | 2019 | Nano Research2019，12，7： | 3 |
| 11 | Numerical analysis of reactive turbulent flow in the thrust chamber of RD-108 engine rocket显示文摘Combustion chamber modeling and simulation of the liquid propellant engine with kerosene as fuel and liquid oxygen as an oxidizer in the turbulent flow field are performed by CFD technique.The flow is modeled as Single-phase in steady state and using RNG k-ε turbulence model.Simulation results are validated by experimental data of thrust,special impulse and combustion chamber pressure.By comparing t.^wo reaction models of finite rate chemistry and frozen model with experimental data,it is concluded that finite rate chemistry has acceptable results.The optimum value of equivalence ratio(oxidizer to fuel ratio)per reaction and operational parameters of the engine which maximize thrust and special impulse are determined. | Seyed Reza Taghavi Mohammad Ali Dehnavi Ali Ghafouri | 2019 | Defence Technology(防务技术)2019，15，4： | 2 |
| 12 | Evaluation of seismic reliability of gravity dam-reservoirinhomogeneous foundation coupled system显示文摘The seismic performance of gravity dam-reservoir-foundation coupled system is investigated utilizing probabilistic approach.In this research,the uncertainties associated with modeling parameters are incorporated in nonlinear response history simulations to realistically quantify their effects on the seismic performance of the system.The methodology is applied to Pine Flat gravity dam and the foundation is considered to be inhomogeneous assuming a constant spatial geometry but with various rock material properties.The sources of uncertainty are taken into account in the reliability analysis using Latin Hypercube Sampling procedure.The effects of the deconvolution process,number of samples,and foundation inhomogeneity are investigated. | Hamid Taghavi GANJI Mohammad ALEMBAGHERI Mohammad Houshmand KHANEGHAHI | 2019 | Frontiers of Structural and Civil Engineering2019，13，3： | 2 |
| 13 | Multisystem inflammatory syndrome in pediatric COVID-19 patients:a meta-analysis显示文摘Background We aimed to systematically review the clinical and laboratory features of patients with the multisystem inflam-matory syndrome in pediatrics diagnosed during the COVID-19 pandemic.Data sources A literature search in Web of Science,PubMed,Scopus,and Science Direct was made up to June 29,2020.Results Analysis of 15 articles(318 COVID-19 patients)revealed that although many patients presented with the typical multisystem inflammatory syndrome in pediatrics,Kawasaki-like features as fever(82.4%),polymorphous maculopapular exanthema(63.7%),oral mucosal changes(58.1%),conjunctival injections(56.0%),edematous extremities(40.7%),and cervical lymphadenopathy(28.5%),atypical gastrointestinal(79.4%)and neurocognitive symptoms(31.8%)were also com-mon.They had elevated serum lactic acid dehydrogenase,D-dimer,C-reactive protein,procalcitonin,interleukin-6,troponin I levels,and lymphopenia.Nearly 77.0%developed hypotension,and 68.1%went into shock,while 41.1%had acute kidney injury.Intensive care was needed in 73.7%of cases;13.2%were intubated,and 37.9%required mechanical ventilation.Intravenous immunoglobulins and steroids were given in 87.7%and 56.9%of the patients,respectively,and anticoagulants were utilized in 67.0%.Pediatric patients were discharged after a hospital stay of 6.77 days on average(95%CI 4.93-8.6).Conclusions Recognizing the typical and atypical presentation of the multisystem inflammatory syndrome in pediatric COVID-19 patients has important implications in identifying children at risk.Monitoring cardiac and renal decompensation and early interventions in patients with multisystem inflammatory syndrome is critical to prevent further morbidity. | Eman A.Toraih Mohammad H.Hussein Rami M.Elshazli Adam Kline Ruhul Munshi Nasrin Sultana Sharven Taghavi Mary Killackey Juan Duchesne Manal S.Fawzy Emad Kandil | 2021 | World Journal of Pediatrics2021，17，2： | 2 |
| 14 | Performance enhancement of bimetallic Co-Ru/CNTs nano catalysts using microemulsion technique显示文摘Bimetallic cobalt-ruthenium nano catalysts supported on carbon nanotubes(CNTs)are prepared using microemultion technique with water-to-surfactant ratios of 0.5—1.5.The nano catalysts were extensively characterized by different methods and their activity and selectivity in Fischer-Tropsch synthesis(FTS)have been assessed in a fixed-bed microreactor.The physicochemical properties and performance of the nanocatalysts were compared with the catalyst prepared by impregnation method.Very narrow particle size distribution has been produced by the microemulsion technique at relatively high loadings of active metals(15 wt%Co and 1 wt%Ru).According to TEM images,small Co particles(2—7 nm)were mostly confined inside the CNTs.Comparing with the catalyst prepared by impregnation,the use of microemulsion technique with water to surfactant ratio of 0.5 decreased the average cobalt oxide particle size to 4.8 nm,the dispersion was almost doubled and the reduction increased by 28%.Activity and selectivity were found to be dependent on the catalyst preparation method and water-to-surfactant ratio(as well as cobalt particle sizes).CO conversion increased from 59.1%to 75.1%and the FTS rate increased from 0.291 to0.372 gHC/(gcath).C5+liquid hydrocarbons selectivity decreased from 92.4%to 87.6%. | Ahmad Tavasoli Somayeh Taghavi | 2013 | Journal of Energy Chemistry2013，22，5： | 2 |
| 15 | Endophytic bacteria from seeds of Nicotinana tabacum can reduce cadmium phytotoxicity显示文摘 | MASTRETTA C TAGHAVI S van der Lelie D | 2009 | International Journal of Phytoremodiation2009，11，3： | 1 |
| 16 | Comparative genomics and functional analysis of niche-specific adaptation in Pseudomonas putida显示文摘 | Wu X Monchy S Taghavi S | 2010 | FEMS Microbiology Reviews2010，35，2： | 1 |
| 17 | Theeffect of recombinant heavy metal-resistant endo-phytic bacteria on heavy metal up-take by their hostplant 显示文摘 | Lodewyckx C Taghavi S Mergeay M | 2001 | International Journal of Phytorememedi-ation2001，3，2： | 1 |
| 18 | HEER2 (neu) signal in gincreasestherate of hupoxia inducible factor 1 alpha( HIF-1 alpha) synthesis: novel mechanism for HIF-mediated vascular endothelial growth factor expression 显示文摘 | Laughner E Taghavi P Chiles K | 2001 | Mol Cell Biol2001，21，12： | 1 |
| 19 | Highly effective delivery of foreign DNA to adherent cells via polybrene/DMSO-assisted gene transfer methods 显示文摘 | Aubin R A Weinfeld M Taghavi M | 1997 | Methods Mol Biol1997，62，： | 1 |
| 20 | Extracorporeal mem- brane oxygenation is superior to right ventricular assist device for a- cute right ventricular failure after heart transplantation显示文摘 | Taghavi S Zuckermann A Ankersmit J | 2004 | Ann Tho- rac Surg2004，78，： | 1 |
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