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1Phase 1 human trial of autologous bone marrow-hematopoietic stem cell transplantation in patients with decompensated cirrhosis显示文摘AIM: To evaluate safety and feasibility of autologous bone marrow-enriched CD34+ hematopoietic stem cell Tx through the hepatic artery in patients with decompensated cirrhosis.METHODS: Four patients with decompensated cirrhosis were included. Approximately 200 mL of the bone marrow of the patients was aspirated, and CD34+ stem cells were selected. Between 3 to 10 million CD34+ cells were isolated. The cells were slowly infused through the hepatic artery of the patients.RESULTS: Patient 1 showed marginal improvement in serum albumin and no significant changes in other test results. In patient 2 prothrombin time was decreased; however, her total bilirubin, serum creatinine, and Model of End-Stage Liver Disease (MELD) score worsened at the end of follow up. In patient 3 there was improvement in serum albumin, porthrombin time (PT), and MELD score. Patient 4 developed radiocontrast nephropathy after the procedure, and progressed to type 1 hepatorenal syndrome and died of liver failure a few days later. Because of the major side effects seen in the last patient, the trial was prematurely stopped.CONCLUSION: Infusion of CD34+ stem cells through the hepatic artery is not safe in decompensated cirrhosis. Radiocontrast nephropathy and hepatorenal syndrome could be major side effects. However, this study doesnot preclude infusion of CD34+ stem cells through other routes.Mehdi Mohamadnejad Mehrnaz Namiri Mohamad Bagheri Seyed Masiha Hashemi Hossein Ghanaati Narges Zare Mehrjardi Saeed Kazemi Ashtiani Reza Malekzadeh Hossein Baharvand 2007World Journal of Gastroenterology2007,13,24:74
2Platelet count/spleen diameter ratio to predict esophageal varices in Mexican patients with hepatic cirrhosis显示文摘AIM:To validate whether the platelet count/spleen size ratio can be used to predict the presence of esophageal varices in Mexican patients with hepatic cirrhosis.METHODS:This was an analytical cross-sectional study to validate the diagnostic test for hepatic cirrhosis and was performed between February 2010 and December 2011.Patients with a diagnosis of hepatic cirrhosis were included and stratified using their ChildPugh score.Biochemical parameters were evaluated,and ultrasound was used to measure the longest diameter of the spleen.The platelet count/spleen diameter ratio was calculated and analyzed to determine whether it can predict the presence of esophageal varices.Upper gastrointestinal endoscopy was used as the gold standard.Sensitivity and specificity,positive and negative predictive values,and positive and negative likelihood ratios were determined,with the cutoff points determined by receiver-operating characteristic curves.RESULTS:A total of 91 patients were included.The mean age was 53.75±12 years;50(54.9%)were men,and 41(45.0%)women.The etiology of cirrhosis included alcohol in 48(52.7%),virally induced in24(26.3%),alcoholism plus hepatitis C virus in three(3.2%),cryptogenic in nine(9.8%),and primary biliary cirrhosis in seven(7.6%).Esophageal varices were present in 73(80.2%)patients.Child-Pugh classification,17(18.6%)patients were classified as class A,37(40.6%)as class B,and 37(40.6%)as class C.The platelet count/spleen diameter ratio to detect esophageal varices independent of the grade showed using a cutoff value of≤884.3,had 84%sensitivity,70%specificity,and positive and negative predictive values of 94%and 40%,respectively.CONCLUSION:Our results suggest that the platelet count/spleen diameter ratio may be a useful tool for detecting esophageal varices in patients with hepatic cirrhosis.Alejandro González-Ojeda Gabino Cervantes-Guevara Manuela Chávez-Sánchez Carlos Dávalos-Cobián Susana Ornelas-Cázares Michel Dassaejv Macías-Amezcua Mariana Chávez-Tostado Kenia Militzi Ramírez-Campos Anaís del Rocío Ramírez-Arce Clotilde Fuentes-Orozco 2014World Journal of Gastroenterology2014,20,8:18
3A comparative analysis among computational intelligence techniques for dissolved oxygen prediction in Delaware River显示文摘Most of the water quality models previously developed and used in dissolved oxygen(DO) prediction are complex.Moreover,reliable data available to develop/calibrate new DO models is scarce.Therefore,there is a need to study and develop models that can handle easily measurable parameters of a particular site,even with short length.In recent decades,computational intelligence techniques,as effective approaches for predicting complicated and significant indicator of the state of aquatic ecosystems such as DO,have created a great change in predictions.In this study,three different Al methods comprising:(1) two types of artificial neural networks(ANN) namely multi linear perceptron(MLP) and radial based function(RBF);(2) an advancement of genetic programming namely linear genetic programming(LGP);and(3) a support vector machine(SVM) technique were used for DO prediction in Delaware River located at Trenton,USA.For evaluating the performance of the proposed models,root mean square error(RMSE),Nash-Sutcliffe efficiency coefficient(NS),mean absolute relative error(MARE) and,correlation coefficient statistics(R) were used to choose the best predictive model.The comparison of estimation accuracies of various intelligence models illustrated that the SVM was able to develop the most accurate model in DO estimation in comparison to other models.Also,it was found that the LGP model performs better than the both ANNs models.For example,the determination coefficient was 0.99 for the best SVM model,while it was 0.96,0.91 and 0.81 for the best LGP,MLP and RBF models,respectively.In general,the results indicated that an SVM model could be employed satisfactorily in DO estimation.Ehsan Olyaie Hamid Zare Abyaneh Ali Danandeh Mehr 2017Geoscience Frontiers2017,8,3:11
4Effect of cold rolling on the microstructural, magnetic, mechanical, and corrosion properties of AISI 316L austenitic stainless steel显示文摘This study has evaluated the effect of different levels of cold rolling(from 0 to 50%)on the microstructural,magnetic,and mechanical properties and the corrosion behavior of 316L austenitic stainless steel in Na Cl(1 mol/L)+H_2SO_4(0.5 mol/L)solution.Microstructural examinations using optical microscopy revealed the development of a morphological texture from coaxial to elongated grains during the cold-rolling process.Phase analysis carried out on the basis of X-ray diffraction confirmed the formation of the ferromagneticα′-martensite phase under the stresses applied during cold rolling.This finding is in agreement with magnetic measurements using a vibrating sample magnetometer.Mechanical properties determined by tensile and Vickers microhardness tests demonstrated an upward trend in the hardness-to-yield strength ratio with increasing cold-rolling percentage,representing a reduction in the material’s work-hardening ability.Uniform and localized corrosion parameters were estimated via potentiodynamic polarization corrosion tests and electrochemical impedance spectroscopy.In contrast to the uniform corrosion,wherein the corrosion current density increased with increasing cold-working degree because of the high density of microstructural defects,the passive potential range and breakdown potential increased by cold working,showing greater resistance to pit nucleation.Although pits were formed,the cold-rolled material repassivation tendency decreased because of the broader hysteresis anodic loop,as confirmed experimentally by observation of the microscopic features after electrochemical cyclic polarization evaluations.S.Tanhaei Kh.Gheisari S.R.Alavi Zaree 2018International Journal of Minerals,Metallurgy and Materials2018,25,6:9
5Risk factors of gastroesophageal reflux disease in Shiraz,southern Iran显示文摘AIM: To determine the prevalence and symptoms of gastroesophageal reflux disease (GERD) in a healthy general population in relation to demographic,lifestyle and health-seeking behaviors in Shiraz,southern Iran. METHODS: A total of 1978 subjects aged > 35 years who referred to Gastroenterohepatology Research Center and who completed a questionnaire consisting of 27 questions for GERD in relation to demographic,lifestyle and health-seeking behaviors were included in this study for a period of five months. The validity and reliability of the questionnaire were determined. RESULTS: The prevalence of GERD was 15.4%,which was higher in females (17.3%),in rural areas (19.8%),and in illiterate subjects (21.5%) and those with a mean age of 50.25 years. The prevalence was significantly lower in subjects having fried food (14.8%),and fruit and vegetables (14.6%). More symptoms were noticed in subjects consuming pickles (22.1%),taking aspirin (21%) and in subjects with psychological distresses (27.2%) and headaches (22%). The correlation was statistically significant between GERD and halitosis (18.3%),dyspepsia (30.6%),anxiety (19.5%),nightmares (23.9%) and restlessness (18.5%). Their health seeking behavior showed that there was a significant restriction of diet (20%),consumption of herbal medicine (19%),using over-the-counter drugs (29.9%) and consulting with physicians (24.8%). Presence of GERD symptoms was also significantly related to a previous family history of the disease (22.3%).CONCLUSION: GERD is more common in females,rural and illiterate subjects and correlated with consumption of pickles,occurrence of headache,psychological distress,dyspepsia,halitosis,anxiety,nightmare and restlessness,and a family history of GERD and aspirin intake,but the correlation was negative with consumption of fat and fiber intake.Mehdi Saberi-Firoozi Farnaz Khademolhosseini Maryam Yousefi Davood Mehrabani Najaf Zare Seyed Taghi Heydari 2007World Journal of Gastroenterology2007,13,41:7
6Surface-imprinted polymers in microfluidic devices显示文摘Molecularly imprinted polymers are generated by curing a cross-linked polymer in the presence of a template. During the curing process, noncovalent bonds form between the polymer and the template. The interaction sites for the noncovalent bonds become 'frozen' in the cross-linking polymer and maintain their shape even after the template is removed. The resulting cavities reproduce the size and shape of the template and can selectively reincorporate the template when a mixture containing it flows over the imprinted surface. In the last few decades the field of molecular imprinting has evolved from being able to selectively capture only small molecules to dealing with all kinds of samples. Molecularly imprinted polymers (MIPs) have been generated for analytes as diverse as metal ions, drug molecules, environmental pollutants, proteins and viruses to entire cells. We review here the relatively new field of surface imprinting, which creates imprints of large, biologically relevant templates. The traditional bulk imprinting, where a template is simply added to a prepolymer before curing, cannot be applied if the analyte is too large to diffuse from the cured polymer. Special methods must be used to generate binding sites only on a surface. Those techniques have solved crucial problems in separation science as well as chemical and biochemical sensing. The implementation of imprinted polymers into microfluidic chips has greatly improved the applicability of microfluidics. We present the latest advances and different approaches of surface imprinting and their applications for microfluidic devices.SCHIRHAGL Romana ZARE Richard N. 2012Science China Chemistry2012,55,4:4
7Surfactant assisted solvothermal synthesis of ZnO nanoparticles and study of their antimicrobial and antioxidant properties显示文摘This study demonstrated a solvothermal method of growth of three different morphologies of zinc oxide nanoparticles(ZnO NPs): i) flower-like nanorod and nanoflakes, ii) assembled hierarchical structure,and iii) nano granule. Oleic acid(C_(18)H_(34)O_2), gluconic acid(C_6H_(12)O_7) and tween 80(C_(64)H_(124)O_(26)) were used as surfactant/capping/reducing agent for the formation of different morphologies of nanoparticles.The as-synthesized ZnO NPs were characterized by different physicochemical techniques such as UV–vis(UV–vis) spectroscopy, X-ray diffraction(XRD), fourier transform infrared spectroscopy(FTIR), field emission scanning electron microscopy(FE-SEM), energy dispersive X-ray(EDX) analysis and dynamic light scattering(DLS) studies. Further, the antioxidant and antimicrobial activity of these nanostructures was evaluated. The antioxidant activity of these nanostructures was assessed via 2,2-diphenyl,1-1 picrylhydrazyl(DPPH), 2,2-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)(ABTS) and H_2O_2 free radical scavenging activity. The in vitro antimicrobial activity of the obtained nanostructures was demonstrated against both gram negative(Escherichia coli) and gram positive(Staphylococcus aureus) bacterial genera.This study revealed antioxidant and antimicrobial properties of different structures of ZnO NPs suggesting their biomedical and industrial applications.Mina Zare K. Namratha K. Byrappa D.M. Surendra S. Yallappa Basavaraj Hungun 2018Journal of Materials Science & Technology2018,34,6:4
8新型磺酸功能化吡啶盐酸盐离子液体催化剂用于六氢喹啉合成(英文)显示文摘Sulfonic acid functionalized pyridinium chloride [pyridine-SO3 H]Cl has been synthesized as a novel Brnsted acidic ionic liquid and characterized on the basis of its FT-IR,1H and 13C NMR,MS,ther-mogravimetry,and derivative thermogravimetry data.The material has also been used as a highly efficient,homogeneous,and reusable catalyst for the preparation of hexahydroquinolines according to the one-pot multi-component condensation of arylaldehydes,dimedone(5,5-dimethylcyclohexane-1,3-dione),β-ketoesters,and ammonium acetate under solvent-free conditions.Ardeshir Khazaei Mohammad Ali Zolfigol Ahmad Reza Moosavi-Zare Javad Afsar Abdolkarim Zare Vahid Khakyzadeh Mohammad Hassan Beyzavi 2013催化学报2013,34,10:4
9采用工艺优化和动力学模型提高铀矿生物柱浸的回收率(英文)显示文摘采用嗜酸氧化亚铁硫杆菌提高轴矿的生物柱浸回收率,利用Plackett-Burman因子设计法研究七因素对铀矿生物柱浸显著性的影响。选取[Fe^(2+)]_(initial)、pH值、通气速率和接种率4个显著性参数进行优化试验,采用一种中心复合设计法研究这些参数对铀矿生物浸出的影响。铀矿生物浸出率最大时((90.27±0.98)%)对应的优化参数如下:[Fe^(2+)]_(initial)=2.89 g/L、通气速率420 mL/min、pH 1.45、接种率6%(体积分数)。[Fe^(2+)]_(initial)对铀矿生物浸出的影响最大。由预测模型得到铀的最大回收率为92.01%,此数据与实验所得结果吻合较好。最佳浸出条件下铀矿浸出渣的分析结果表明,矿物表面形成了黄钾铁矾。最佳浸出条件下铀的生物柱浸率提高,黄钾铁矾沉淀量减少。动力学模型预测结果表明,铀的回收率与Fe^(2+)浓度密切相关。H. ZARE TAVAKOLI M. ABDOLLAHY S. J. AHMADI A. KHODADADI DARBAN 2017Transactions of Nonferrous Metals Society of China2017,27,12:4
10Effects of different treatments on seed germination and breaking seed dormancy of Prosopis koelziana and Prosopis Juliflora显示文摘For improving seed germination of Prosopis koelziana and Prosopis juliflora, different treatments of seeds were conducted, including scarification with sulfuric acid 98% for 10 and 15 min, sandy paper, hot water for 5 and 10 min, potasium nitrate 0.1%, gibberellic acid at 250 mg·L-1 and 500 mg·L-1 and combinational treatment of scarification with gibberellic acid of 250 mg·L-1 and 500 mg·L-1. The results show that scarifications with sandy paper and sulfuric acids 98% were the most effective treatments on breaking seed dormancy and seed germination induction. Scarification with sulfuric acid 98% for 15 min was the best treatment. According to the positive effect of scarification and lack of reaction of seeds against KNO3 and gibberellic acid, the kind of seed dormancy was determined as exogenous.Salman Zare Ali Tavili Mohammad Javad Darini 2011Journal of Forestry Research2011,22,1:3
11Production of single-walled carbon nanotubes from methane over Co-Mo/MgO nanocatalyst:A comparative study of fixed and fluidized bed reactors显示文摘In this study,the performances of fixed and fluidized bed reactors in the production of single-walled carbon nanotubes(SWNTs)have been investigated.In both reactors,single-walled carbon nanotubes were grown by catalytic chemical vapor decomposition(CCVD)of methane over Co-Mo/MgO nanocatalyst under two different operating conditions.The synthesized samples were characterized by TEM,TGA and Raman spectroscopy.It is found that the performance of a fluidized bed in the synthesis of carbon nanotubes is much better than that of a fixed bed.The quality of carbon nanotubes obtained from the fluidized bed was significantly higher than that from the fixed bed and the former one with the ID/IG ratio of 0.11 while the latter one with the ID/IG ratio of 0.71.Also,the yield of SWNTs in the fluidized bed was 92 wt%,while it was 78 wt%in the fixed bed.These advantages of fluidized bed reactors for the synthesis of carbon nanotubes can be attributed to more available space for the growth of carbon nanotubes and more uniform temperature and concentration profiles.Alimorad Rashidi Roghayeh Lotfi Ehsaneh Fakhrmosavi Masoud Zare 2011Journal of Natural Gas Chemistry2011,20,4:3
12Efficacy of Valerian Extract on Sleep Quality after Coronary Artery bypass Graft Surgery: A Triple-Blind Randomized Controlled Trial显示文摘Objective:To assess the effect of valerian root extract on the sleep quality of patients after coronary artery bypass graft(CABG)surgery.Methods:The patients who participated in this triple-blind clinical trial were selected by permuted block randomization.The participants were assigned to the valerian(n=36)and placebo(n=36)groups.The valerian group received 530 mg of valerian capsules for 30 nights after CABG surgery,and the placebo group received 530 mg of the placebo capsules containing wheat flour.The Pittsburgh Sleep Quality Index(PSQI),the prothrombin time(PT)and partial thromboplastin time(PTT)were assessed on four occasions,including the baseline,the 3 rd,14 th and 30 th days following intervention.Results:The odds ratio of worsened sleep quality significantly varied over time(the interaction of time and group)in the valerian group compared to the placebo group in various dimensions including total sleep quality(P=0.001),sleep latency(P<0.01),sleep duration(P=0.020),sleep efficiency(P=0.001)and daytime dysfunction(P=0.025).No significant difference was observed in the alterations of the odds ratio of PT in the two groups over time.(P=0.371).Conclusion:The consumption of oral valerian root extract over 30 nights could significantly improve the patients'sleep quality safely after CABG surgery.Halimeh khaton Zare Elmi Mohammad Gholami Mandana Saki Farzad Ebrahimzadeh 2021Chinese Journal of Integrative Medicine2021,27,1:3
13Non-alcoholic steatohepatitis and influence of age and gender on histopathologic findings显示文摘AIM:To characterize the histopathologic specifications of non-alcoholic steatohepatitis(NASH)according to age and gender.METHODS:An analytical cross-sectional study was conducted in two private gastroenterology clinics on biopsy proven patients suffering from NASH.Biopsy histopathologic findings as well as demographic and laboratory data of the patients at the time of biopsy were gathered retrospectively from clinical records.The grading and staging of histopathologic findings were performed according to the Brunt method after reevaluation of the slides by a pathologist.Patients were divided into two groups according to age(belowand above 55 years).Mean quantitative grade of all pathologic findings were also calculated according to Brunt scoring values.RESULTS:A total number of 77 NASH patients,consisting of 58 males(75.3%)and 19(24.7%)females with a mean age of 41.99±11.80 years(range,18-70 years),were enrolled.The mean age(48.72±13.99 years vs 39.74±10.16 years,P=0.004)and aspartate aminotransferase level(75.11±29.68 U/L vs 52.78± 25.00 U/L,P=0.002)was significantly higher in female patients.Mean quantitative grade of hepatosteatosis was significantly higher in females(2.00±0.82 vs 1.59 ±0.68,P=0.031)compared to males.Fifty four percent(34/65)of young patients had mild hepatosteatosis (GradeⅠ)while only one patient(11.2%)in the older group had gradeⅠhepatosteatosis.Patients aged≥55 had significantly more severe hepatosteatosis(GradeⅢ) (44.4%vs 9.5%,P=0.007)and the mean quantitative grade of hepatosteatosis was significantly higher among them(2.33±0.71 vs 1.56±0.67,P=0.002).Multivariate analysis after omitting the confounding role of age revealed a higher grade of hepatosteatosis in female patients(P=0.010).CONCLUSION:These findings point toward the possible influence of age in the severity of steatohepatitis,portal and lobar inflammation in patients suffering from NASH while gender independently might contribute to the level of steatohepatitis.Nargess Ebrahimi Daryani Nasser Ebrahimi Daryani Seyed Moayed Alavian Ali Zare Seyed-Mohammad Fereshtehnejad Mohammad Reza Keramati Mohammad Reza Pashaei Peiman Habibollahi 2010World Journal of Gastroenterology2010,16,33:3
14Numerical Analysis of Complicated Heat and Mass Transfer inside a Wustite Pellet during Reducing to Sponge Iron by H_2 and CO Gaseous Mixture显示文摘Heat and mass transfer through a wustite pellet during converting to sponge iron was investigated.Pellet was reduced by agaseous mixture containing CO and H_2.The grain model was considered to simulate gas-solid reaction rate.A finite volume method(FVM)was implemented for solving the governing equations.The heat transfer mechanism around the pellet includes radiation and convection and within the pellet,effective heat transfer is considered as a blend of particles conduction and intraparticle radiation.Heat and mass distribution along the radius of pellet for two cases of reducing gases composed of pure H_2 and pure CO was investigated.Local fractional reduction through the pellet was plotted to examine the heat and mass transfer behavior within the pellet and find their relevance with reduction degree.Afterwards,the impacts of pertinent parameters including gas ratio,pellet size and porosity were studied.Zare Ghadi ARIYAN Valipour MOHAMMAD SADEGH Biglari MOJTABA 2016Journal of Iron and Steel Research(International)2016,23,11:2
15表面印迹聚合物及其在微流控器件中的应用显示文摘分子印迹聚合物是通过在模板存在下固化交联的聚合物制备的.在固化过程中,聚合物和模板间形成非共价键.这些非共价结合位点被'冻结'在交联的聚合物中,即使移去模板后也依然维持他们的形状.余下的空穴与模板的尺寸和形状一致,并且可以选择性地从流过的混合物中俘获模板物质.在近几十年中,分子印迹的领域由选择性俘获小分子扩展到处理各种类型的样品.分子印迹聚合物(MIP)被用于分析种类繁多的样品,比如金属离子、药物分子、环境污染物、蛋白、病毒以至整个细胞.本文中我们综述相对较新的领域——表面印迹,这是一种可以用来生成相对较大的生物相关模板的印迹方法.传统的整体印迹法是直接在固化前将模板加入预聚体中,因而不适用于那些大到无法从固化后的聚合物中扩散出来的物质.要仅在表面上生成结合位点,必须要使用特别的方法,由此产生的表面印迹技术解决了分离科学以及化学和生物化学监测的重要问题.将印迹聚合物植入微流控芯片,大大扩展了微流体技术的适用性.本文叙述表面印迹最新的进展以及不同的实施手段,以及它们在微流控器件中的应用.SCHIRHAGL Romana 任康宁 ZARE Richard N 2012中国科学:化学2012,42,7:2
16Development of a Circuit-theory Based Transmission Cost Allocation Method by Orthogonal Projection and Equal-sharing Principle显示文摘This paper presents a new solution to the problem of transmission cost allocation to its users.The proposed technique utilizes modified Z-bus theory,equivalent current injection and impedance of the generators and loads,and is developed by the equal-sharing as well as the orthogonal projection principle.The procedure is performed in three steps.First,the modified Z-bus theory is used to calculate the contribution of the users into the network bus voltages as well as the branch currents.Then,the equal sharing principle is confirmed by the game theory solutions and is subsequently applied to identify the users’contributions into the branch power flows.After that,the orthogonal projections of the contributions are calculated and the concept of effective contributions is suggested.The proposed methodology provides the percentage shares of the users on the network complex variables,which help to better assess the contributions.A 2-bus and the IEEE 30-bus test system are used to validate the proposed technique.Finally,the proposed methodology is applied to the polish 2383-bus system to emphasize its applicability to large practical systems.Saeid Pouyafar Mehrdad Tarafdar Hagh Kazem Zare 2019CSEE Journal of Power and Energy Systems2019,5,2:2
17Using Audiometric Data to Weigh and Prioritize Factors that Affect Workers’ Hearing Loss through Support Vector Machine (SVM) Algorithm显示文摘Workers’exposure to excessive noise is a big universal work-related challenges.One of the major consequences of exposure to noise is permanent or transient hearing loss.The current study sought to utilize audiometric data to weigh and prioritize the factors affecting workers’hearing loss based using the Support Vector Machine(SVM)algorithm.This cross sectional-descriptive study was conducted in 2017 in a mining industry in southeast Iran.The participating workers(n=150)were divided into three groups of 50 based on the sound pressure level to which they were exposed(two experimental groups and one control group).Audiometric tests were carried out for all members of each group.The study generally entailed the following steps:(1)selecting predicting variables to weigh and prioritize factors affecting hearing loss;(2)conducting audiometric tests and assessing permanent hearing loss in each ear and then evaluating total hearing loss;(3)categorizing different types of hearing loss;(4)weighing and prioritizing factors that affect hearing loss based on the SVM algorithm;and(5)assessing the error rate and accuracy of the models.The collected data were fed into SPSS 18,followed by conducting linear regression and paired samples t-test.It was revealed that,in the first model(SPL<70 dBA),the frequency of 8 KHz had the greatest impact(with a weight of 33%),while noise had the smallest influence(with a weight of 5%).The accuracy of this model was 100%.In the second model(7085 dBA),the frequency of 4 KHz had the highest impact(with a weight of 22%),while the frequency of 250 Hz had the smallest influence(with a weight of 3%).The accuracy of this model was 100%too.In the fourth model,the frequency of 4 KHz had the greatest effect(with a weight of 24%),while the frequency of 500 Hz had the smallest effect(with a weight of 4%).The accuracy of this model was found to be 94%.According to the modeling conducted using the SVM algorithm,the frequency of 4 KHz has the most profound effect on predicting changes in hearing loss.Given the high accuracy of the obtained model,this algorithm is an appropriate and powerful tool to predict and model hearing loss.Hossein ElahiShirvan MohammadReza Ghotbi-Ravandi Sajad Zare Mostafa Ghazizadeh Ahsaee 2020Sound & Vibration2020,54,2:2
18Studies on product distribution of alkali promoted iron catalyst in Fischer-Tropsch synthesis显示文摘The dependencies of hydrocarbon product distributions of alkali promoted iron catalyst in Fischer-Tropsch synthesis have been studied. The concept of two superimposed Anderson-Schulz-Flory distributions has been applied for the representation of the effects of Mg, La and Ca promoters on product distributions. The FTS performance of the catalysts was tested in a fixed bed reactor under the conditions 563 K, 1.7 MPa, H2/CO = 1 and space velocities 4.86 and 13.28 nl h-1 gFe-1 . The results indicate that appropriate amounts of these promoters enhance the break in ASF distributions in the order Ca > Mg > La because of the rising of the catalyst surface basicity.Ali Nakhaei Pour Masoud Zare Yahya Zamani 2010Journal of Natural Gas Chemistry2010,19,1:2
19Polyunsaturated fatty acids and DNA methylation in colorectal cancer显示文摘Colorectal cancer(CRC) has been designated a major global problem, especially due to its high prevalence in developed countries. CRC mostly occurs sporadically(75%-80%), and only 20%-25% of patients have a family history.Several processes are involved in the development of CRC such as a combination of genetic and epigenetic alterations. Epigenetic changes, including DNA methylation play a vital role in the progression of CRC. Complex interactions between susceptibility genes and environmental factors, such as a diet and sedentary lifestyle, lead to the development of CRC. Clinical and experimental studies have confirmed the beneficial effects of dietary polyunsaturated fatty acids(PUFAs) in preventing CRC. From a mechanistic viewpoint, it has been suggested that PUFAs are pleiotropic agents that alter chromatin remodeling,membrane structure and downstream cell signaling. Moreover, PUFAs can alter the epigenome via modulation of DNA methylation. In this review, we summarize recent investigations linking PUFAs and DNA methylationassociated CRC risk.Mostafa Moradi Sarabi Reza Mohammadrezaei Khorramabadi Zohre Zare Ebrahim Eftekhar 2019World Journal of Clinical Cases2019,7,24:2
20Evaluation of PCR assay in diagnosis and identification of cutaneous leishmaniasis: a comparison with the parasitological methods显示文摘Farideh Shahbazi Saed Shahabi Bahram Kazemi Mehdi Mohebali Ali Reza Abadi Zabiholah Zare 2008Parasitology Research2008,,5:2
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