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| 1 | Na2S选择性浸出铜转炉烟灰中的砷及Fe2(SO4)3稳定化砷显示文摘研究砷(As2O3)的Na2S碱性浸出,以及用Fe2(SO4)3沉淀砷。采用基于中心组合设计的响应面法对相关因素的影响进行定量和定性分析,提出用于参数优化的统计模型。结果表明,在Na2S浓度100 g/L,固液比0.163 g/mL和温度80℃的最优预测条件下,89%的砷可从烟灰中去除。研究发现,固液比和Na2S浓度是影响浸出过程的显著因素。在沉淀过程中,当pH为4.8、Fe3+与砷的摩尔比和H2O2与砷的摩尔比分别为5:1和4:1时,浸出液中99.93%以上的砷以无定形砷酸铁的形式被除去。Fe3+与砷的摩尔比和pH值为最显著因素,而且他们之间的相互作用也是显著的。 | Amirhossein SHAHNAZI Sadegh FIROOZI Davoud HAGHSHENAS FATMEHSARI | 2020 | Transactions of Nonferrous Metals Society of China2020，30，6： | 10 |
| 2 | Methylenetetrahydrofolate reductase C677T genotype affects promoter methylation of tumor-specific genes in sporadic colorectal cancer through an interaction with folate/vitamin B_(12) status显示文摘AIM:To evaluate joint effects of Methylentetra-hydrofolate reductase(MTHFR) C677T genotypes,and serum folate/vitamin B12 concentrations on promoter methylation of tumor-associated genes among Iranian colorectal cancer patients. METHODS:We examined the associations between MTHFR C677T genotype,and promoter methylation of P16,hMLH1,and hMSH2 tumor-related genes among151 sporadic colorectal cancer patients. The promoter methylation of tumor-related genes was determined by methylation-specific PCR. Eighty six patients from whom fresh tumor samples were obtained and 81 controls were also examined for serum folate and vitamin B12 concentrations by a commercial radioimmunoassay kit. RESULTS:We found 29.1% of cases had tumors with at least one methylated gene promoter. In case-case comparison,we did not find a significant association between methylation in tumors and any single genotype. However,in comparison to controls with the CC genotype,an increased risk of tumor methylation was associated with the CT genotype(OR = 2.5;95% CI,1.1-5.6) . In case-case comparisons,folate/vitamin B12 levels were positively associated with tumor methylation. Adjusted odds ratios for tumor methylation in cases with high(above median) versus low(below median) serum folate/vitamin B12 levels were 4.9(95% CI,1.4-17.7) ,and 3.9(95% CI,1.1-13.9) ,respectively. The frequency of methylated tumors was significantly higher in high methyl donor than low methyl donor group,especially in those with MTHFR CT(P = 0.01) ,and CT/TT(P = 0.002) genotypes,but not in those with the CC genotype(P = 1.0) . CONCLUSION:We conclude that high concentrations of serum folate/vitamin B12 levels are associated with the risk of promoter methylation in tumor-specific genes,and this relationship is modified by MTHFR C677T genotypes. | Pooneh Mokarram Fakhraddin Naghibalhossaini Mehdi Saberi Firoozi Seyed Vahid Hosseini Ahmad Izadpanah Heshmetalah Salahi Seyed Ali Malek-Hosseini Abdoulrasool Talei Mehra Mojallal | 2008 | World Journal of Gastroenterology2008，14，23： | 5 |
| 3 | The effect of micro and nano particle sizes of H-ZSM-5 on the selectivity of MTP reaction显示文摘 | Firoozi M Baghalha M Asadi M | | 0，，： | 1 |
| 4 | The effect of micro and nano particles sizes of H-ZSM-5 on the selectivity of MTP reaction显示文摘 | FIROOZI M BAGHALHA M ASADI M | 2009 | Catalysis Communication2009，10，12： | 1 |
| 5 | Unexplained pulmonary hypertension in peritoneal dialysis and hemodialysis Patients显示文摘 | Etemadi J Zolfaghari H Firoozi R | 2012 | Rev Port Pneumol2012，18，1： | 1 |
| 6 | Surgically con'ected urethral diverticula: long-term voiding dysfunction and reoperation rates显示文摘 | Ingber MS Firoozi F Vasavada SP | 2011 | Urology2011，77，1： | 1 |
| 7 | The effect of micro and nano parti- cle sizes of HZSMo5 on the selectivity of MTP reaction 显示文摘 | Firoozi M Baghalha M Asad M | 2009 | Catal Commun2009，10，12： | 1 |
| 8 | A dynamic model of ground water restoration with accelerator constraint 显示文摘 | Fathali Firoozi John Merrifield | 1995 | Applied Mathematical Modelling1995，3，： | 1 |
| 9 | Surgically corrected urethral diverticula: long-term voiding dysfunction and reoperation rates显示文摘 | lugber MS Firoozi F Vasavada SP | 2011 | Urology2011，77，1： | 1 |
| 10 | The effect of micro and nano particle sizes of H-ZSM-5 on the selectivity of MTP reaction显示文摘 | FIROOZI M BAGHALHA M ASADI M | 2009 | Catal Commun2009，10，12： | 1 |
| 11 | The effect of micro and nano particle sizes of HZSM-5 on the selectivity of MTP re- action显示文摘 | Firoozi M Baghalha M Asad M | 2009 | Catal Commun2009，10，12： | 1 |
| 12 | A high performance electrochemical biosensing platform for glucose detection and IgE aptasensing based on Fe3O4/reduced graphene oxide nanocomposite显示文摘 | Teymourian H Salimi A Firoozi S | 2014 | Electroanalysis2014，26，1： | 1 |
| 13 | Systematic evaluation of complications related to endoscopy in a training setting: A prospective 30-day outcomes study显示文摘 | Edmund J. Bini Babak Firoozi Rosa J. Choung Eyad M. Ali Mohamed Osman Elizabeth H. Weinshel | 2003 | Gastrointestinal Endoscopy2003，，1： | 1 |
| 14 | New immunological investigations on Helicobacter pylori ‐induced gastric ulcer in patients显示文摘 | Hamid Reza Rahimi Manoochehr Rasouli Akram Jamshidzadeh Shohreh Farshad Mehdi Saberi Firoozi Ali Reza Taghavi Simin Kiany | 2013 | Microbiol Immunol2013，，6： | 1 |
| 15 | Property assessments and information asymmetry in residential real estate显示文摘 | Firoozi F Hollas D R Rutherford R C Thomson T A | 2006 | JRER2006，28，3： | 1 |
| 16 | 查看详情显示文摘 | Firoozi M Baghalha M Asadi M | | 0，，： | 1 |
| 17 | The effect of micro and nano particle sizes of H-ZSM-5 on the selectivity of MTP reaction显示文摘 | Firoozi M Baghalha M Asadi M | 2009 | Catalysis Communications2009，10，： | 1 |
| 18 | In vivo and in vitro response of corpus cavernosum to phosphodiesterase-5 inhibition in the hypercholesterolaemic rabbit显示文摘 | Firoozi F Longhurst PA White MD | 2005 | BJU Int2005，96，1： | 1 |
| 19 | The effect of micro and nano particle sizes of H-ZSM-5 on the selectivity of MTP reaction显示文摘 | M. Firoozi M. Baghalha M. Asadi | 2009 | Catalysis Communications2009，，12： | 1 |
| 20 | The effect of micro and nano particle sizes of H-ZSM-5 on the selectivity of MTP reaction显示文摘 | FIROOZI M BAGHALHA M ASADI M | 2009 | Catal Commun2009，10，12： | 1 |
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