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| 1 | Copper Supported on the SiO2 Nanoparticle in Click Chemistry: An Alternative Catalytic System for Regioselective and One-Pot Synthesis of 1,2,3-Triazoles and β-Hydroxytriazoles显示文摘在这个工作,乐意地准备了在 SiO2 nanoparticles 上支持的铜被发现了有效地催化许多叠氮化物,炔属羟, epoxides 和钠叠氮化物的 1,3-dipolar cycloaddition,供应相应 1,2,3-triazoles 和 -hydroxytriazoles。按反应在短反应时间并且在温和反应条件,和产生产品下面继续在周围的温度在好收益被获得。 | Ciyabi Hashjin,Maryam Ciyabi,Roghayeh Baharloui,Maryam Hosseini,Ghaffar Tavakoli,Hamed | 2012 | Chinese Journal of Chemistry2012，30，2： | 3 |
| 2 | A Micro Structure POF Relative Humidity Sensor Modified With Agarose Based on Surface Plasmon Resonance and Evanescent Wave Loss显示文摘A novel high sensitivity relative humidity(RH)sensor was proposed by using micro structure plastic optical fiber(POF)based on the surface plasmon resonance(SPR)effect and the evanescent wave(EW)loss.The micro structure was fabricated on the POF and coated with a gold layer and agarose,adopting the sputtering and dip-coating technique.These construction effects on the attenuation of power caused by the SPR effect and the EW loss were used to perform RH detections.The agarose9s different refractive indexes(RIs)caused fluctuations in the transmission power when the humidity increased.The demonstrated experimental results showed that the proposed sensor achieved a linear response from 20%RH to 80%RH with a high sensitivity of 0.595μW/%.The proposed sensor had the advantages of fast response and recovery.Furthermore,the temperature dependence and the repeatability test of the sensor were also performed. | Yanjun HU Abdul GHAFFAR Yulong HOU Wenyi LIU Fei LI Jun WANG | 2021 | Photonic Sensors2021，11，4： | 3 |
| 3 | Survival and outcomes for co-infection of chronic hepatitis C with and without cirrhosis and COVID-19: A multicenter retrospective study显示文摘BACKGROUND Chronic liver disease,particularly cirrhosis,is associated with worse outcomes in patients infected with coronavirus disease 2019(COVID-19).AIM To assess outcomes of COVID-19 infection among patients with pre-existing hepatitis C with or without liver cirrhosis.METHODS This multicenter,retrospective cohort study included all cases of confirmed coinfection of severe acute respiratory syndrome coronavirus 2 and chronic hepatitis C with or without liver cirrhosis who were admitted to six hospitals(Al-Sahel Hospital,Al-Matareya Hospital,Al-Ahrar Hospital,Ahmed Maher Teaching Hospital,Al-Gomhoreya Hospital,and the National Hepatology and Tropical Medicine Research Institute)affiliated with the General Organization for Teaching Hospitals and Institutes in Egypt.Patients were recruited from May 1,2020,to July 31,2020.Demographic,laboratory,imaging features,and outcomes were collected.Multivariate regression analysis was performed to detect factors affecting mortality.RESULTS This retrospective cohort study included 125 patients with chronic hepatitis C and COVID-19 co-infection,of which 64(51.20%)had liver cirrhosis and 40(32.00%)died.Fever,cough,dyspnea,and fatigue were the most frequent symptoms in patients with liver cirrhosis.Cough,sore throat,fatigue,myalgia,and diarrhea were significantly more common in patients with liver cirrhosis than in noncirrhotic patients.There was no difference between patients with and without cirrhosis regarding comorbidities.Fifteen patients(23.40%)with liver cirrhosis presented with hepatic encephalopathy.Patients with liver cirrhosis were more likely than non-cirrhotic patients to have combined ground-glass opacities and consolidations in CT chest scans:28(43.75%)vs 4(6.55%),respectively(P value<0.001).These patients also were more likely to have severe COVID-19 infection,compared to patients without liver cirrhosis:29(45.31%)vs 11(18.04%),respectively(P value<0.003).Mortality was higher in patients with liver cirrhosis,compared to those with no cirrhosis:33(51.56%)vs 9(14.75%),respectively(P value<0.001).All patients in Child-Pugh class A recovered and were discharged.Cirrhotic mortality occurred among decompensated patients only.A multivariate regression analysis revealed the following independent factors affecting mortality:Male gender(OR 7.17,95%CI:2.19–23.51;P value=0.001),diabetes mellitus(OR 4.03,95%CI:1.49–10.91;P value=0.006),and liver cirrhosis(OR 1.103,95%CI:1.037–1.282;P value<0.0001).We found no differences in liver function,COVID-19 disease severity,or outcomes between patients who previously received direct-acting antiviral therapy(and achieved sustained virological response)and patients who did not receive this therapy.CONCLUSION Patients with liver cirrhosis are susceptible to higher severity and mortality if infected with COVID-19.Male gender,diabetes mellitus,and liver cirrhosis are independent factors associated with increased mortality risk. | Shimaa Afify Basem Eysa Fatma Abdel Hamid Omnia M Abo-Elazm Mohamed A Edris Rabab Maher Ahmed Abdelhalim Muhammad Mostafa Abdel Ghaffar Dalia A Omran Hend Ibrahim Shousha | 2021 | World Journal of Gastroenterology2021，27，42： | 2 |
| 4 | Non-dysraphic intramedullary spinal cord lipoma显示文摘 | Qureshi NA Akram M Ghaffar A | 2006 | J Coil Physicians Surg Pak2006，16，4： | 1 |
| 5 | Comparison of outcomes of enteralfeeding via nasogastric versus gastrostomy tubes in post operative patientswith a principle diagnosis of squamous call carcinoma of the oral cavity显示文摘 | Sobani ZU Ghaffar S Ahmed BN | 2011 | JPak Med Assoc2011，61，10： | 1 |
| 6 | Enhanced purinergic con- tractile responses and P2X1 receptor expression in detrusor muscle during cycles of hypoxia-glucopenia and reoxygenation 显示文摘 | Elliott RA Tonnu A Ghaffar N | 2013 | Exp Physiol2013，98，： | 1 |
| 7 | The conditions required for the propagation of a cathode-directed positive streamer in air显示文摘 | Allen N L Ghaffar A | 1995 | J Phys D:Appl Phys1995，28，2： | 1 |
| 8 | Recent trends in lactic acid biotechnology: A brief review on production to purification 显示文摘 | Ghaffar T Irshad M Anwar Z | 2014 | Journal of Radiation Research and Applied Sciences2014，7，2： | 1 |
| 9 | 3 - D nonlinear seismic behavior of cable - stayed bridges显示文摘 | ABDEL - GHAFFAR A M NAZMY A S | 1991 | Structure Engineering ASCE1991，117，11： | 1 |
| 10 | 显示文摘 | Ghaffar A Sadrmohaghegh C | 1981 | Polymer1981，，17： | 1 |
| 11 | Spiral CT virtual bronchoscopy with multiplanar reformatting in the evaluation of post-intubation tracheal stenosis: comparison between endoscopic, radiological and surgical findings显示文摘 | Mohamed Shehata Taha Badr Eldin Mostafa Marwa Fahmy Maha Khaled A. Ghaffar Enas Abdel Ghany | 2009 | European Archives of Oto-Rhino-Laryngology2009，，： | 1 |
| 12 | Gene expression of the GATA-3 transcription factor is increased in atopic asthma 显示文摘 | Nakamura Y Ghaffar O Olivenstein R | 1999 | J Allergy Clin lmmunol1999，103，21： | 1 |
| 13 | Heterologous expression of a gene for thermostable xylanase from Chaetomium thermophilum in Pichia pastoris GSll5显示文摘 | GHAFFAR A KttAN S A MUKItTAR Z | 2011 | Molecular Biology Reports2011，38，5： | 1 |
| 14 | Loc alization of metallothionein in the brain of rat and mouse显示文摘 | Nishimura H Ghaffar A | 1992 | J Histochem Cytochem1992，40，2： | 1 |
| 15 | The Three Dimensional Nonlinear Static Analysis of Cable-stayed Bridges显示文摘 | Aly S Nazmy Ahmed M Abdel Ghaffar | 1990 | Computers & Structures1990，34，2： | 1 |
| 16 | The conditions required for thepropagation of a cathode-directed positive streamer in air显示文摘 | ALLEN N L GHAFFAR A | 1995 | Journal of Physics D - Applied Physics1995，28，2： | 1 |
| 17 | Maleic acid/phenylene diamine adducts as new antioxidant amide polymers for rubber (NR and SBR) vulcanizates 显示文摘 | M A Abd E1- Ghaffar D E El- Nashar E A M Youssef | 2003 | Polymer Degradation and Stability2003，82，1： | 1 |
| 18 | Gene expression of transcription factor is increased in aftopiasthma显示文摘 | Nakamura Y Ghaffar O Olivenstein R | 1999 | Jallergy Clin Immunol1999，103，： | 1 |
| 19 | Lignin in straw and its applications as anadhesive显示文摘 | Ghaffar S H Fan M | 2014 | International Journal of Adhesion and Adhesives2014，48，： | 1 |
| 20 | Radiation-induced graft copolyme- rization of acrylic acid/acrylonitrile onto LDPE and PET films and its biodegradability 显示文摘 | EL-ARNAOUTY M B ABDEL GHAFFAR A M EL- SHAFEY H M | 2008 | Journal of Applied Polymer Science2008，107，2： | 1 |
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