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| 1 | Synthesis,characterization and application of ZnO-Ag as a nanophotocatalyst for organic compounds degradation,mechanism and economic study显示文摘The current work deals with ZnO-Ag nanocomposites(in the wide range of x in the Zn1-x O-Ag x chemical composition) synthesized using microwave assisted solution combustion method.The structural, morphological and optical properties of the samples were characterized by XRD(X-ray diffraction), FTIR(Fourier transform infrared spectrometry), SEM(scanning electron microscopy technique), EDX(energy dispersive X-ray spectrum), ICP(inductively coupled plasma technique), TEM(transmission electron microscopy), BET(Brunauer–Emmett–Teller method), UV–Vis(ultraviolet–visible spectrophotometer) and photoluminescence spectrophotometer. The photocatalytic activity of the ZnO-Ag was investigated by photo-degradation of Acid Blue 113(AB 113) under UV illumination in a semi-batch reactor. This experiment showed that ZnO-Ag has much more excellent photocatalytic properties than ZnO synthesized by the same method. The enhanced photocatalytic activity was due to the decrease in recombination of photogenerated electron-holes. The results showed the improvement of ZnO photocatalytic activity and there is an optimum amount of Ag(3.5 mol%) that needs to be doped with ZnO.The effect of operating parameters such as p H, catalyst dose and dye concentration were investigated. The reaction byproducts were identified by LC/MS(liquid chromatography/mass spectrometry) analysis and a pathway was proposed as well. Kinetic studies indicated that the decolorization process follows the first order kinetics. Also, the degradation percentage of AB113 was determined using a total organic carbon(TOC) analyzer. Additionally, cost analysis of the process, the mechanism and the role of Ag were discussed. | S.Mohammadzadeh M.E.Olya A.M.Arabi A.Shariati M.R.Khosravi Nikou | 2015 | Journal of Environmental Sciences2015，27，9： | 3 |
| 2 | Fecal calprotectin measurement is a marker of shortterm clinical outcome and presence of mucosal healing in patients with inflammatory bowel disease显示文摘AIM To evaluate the utility of fecal calprotectin(FC) in predicting relapse and endoscopic activity during follow-up in an inflammatory bowel disease(IBD) cohort.METHODS All FC measurements that were obtained during a 3-year period from patients with inflammatory bowel disease in clinical remission were identified. Data regarding the short-term(6 mo) course of the disease were extracted from the medical files. Exclusion criteria were defined as:(1) An established flare of the disease at the time of FC measurement,(2) Loss to follow up within 6 mo from baseline FC measurement, and,(3) Insufficient data on file. Statistical analysis was performed to evaluate whether baseline FC measurement could predict the short term clinical relapse and/or the presence of mucosal healing.RESULTS We included 149 [Crohn's disease(CD) = 113, Ulcerative colitis(UC) = 36, male = 77] IBD patients in our study. Within the determined 6-month period post-FC measurement, 47(31.5%) had a disease flare. Among 76 patients who underwent endoscopy, 39(51.3%) had mucosal healing. Baseline FC concentrations were significantly higher in those who had clinical relapse compared to those who remained in remission during follow up(481.0 μg/g, 286.0-600.0 vs 89.0, 36.0-180.8, P < 0.001). The significant predictive value of baseline median with IQR FC for clinical relapse was confirmed by multivariate Cox analysis [HR for 100μg/g: 1.75(95%CI: 1.28-2.39), P = 0.001]. Furthermore, lower FC baseline values significantly correlated to the presence of mucosal healing in endoscopy(69.0 μg/g, 30.0-128.0 vs 481.0, 278.0-600.0, in those with mucosal inflammation, median with IQR, P < 0.001). We were able to extract cut-off values for FC concentration with a high sensitivity and specificity for predicting clinical relapse(261 μg/g with AUC = 0.901, sensitivity 87.2%, specificity 85.3%, P < 0.001) or mucosal healing(174 μg/g with AUC = 0.956, sensitivity 91.9%, specificity 87.2%, P < 0.001). FC was better than CRP in predicting either outcome; nevertheless, having a pathological CRP(> 5 mg/L) in addition to the cutoffs for FC, significantly enhanced the specificity for predicting clinical relapse(95.1% from 85.3%) or endoscopic activity(100% from 87.2%). CONCLUSION Serial FC measurements may be useful in monitoring IBD patients in remission, as FC appears to be a reliable predictor of short-term relapse and endoscopic activity. | Athanasios Kostas Spyros I Siakavellas Charalambos Kosmidis Anna Takou Joanna Nikou Georgios Maropoulos John Vlachogiannakos George V Papatheodoridis Ioannis Papaconstantinou Giorgos Bamias | 2017 | World Journal of Gastroenterology2017，23，41： | 2 |
| 3 | Current Concepts on Gastric Carcinoid Tumors显示文摘 | George C. Nikou Theodoros P. Angelopoulos Marcus Bahra | 2012 | Gastroenterology Research and Practice2012，，： | 2 |
| 4 | The significance of the dosage adjustment of octreotide in the treatment of acute pancreatitis of moderate severity 显示文摘 | Nikou GC Arnaoutis TP Gia narellos-Bourboulis EJ | 2001 | Hepatogastroenterology2001，48，42： | 1 |
| 5 | Detection of knockdown resis- tance (kdr) mutations in Anopheles gambiae: a comparison of two new high - throughput assays with existing methods 显示文摘 | C Bass D Nikou MJ Donnelly | 2007 | Malar J2007，6，： | 1 |
| 6 | Evaluation of mobile services and substantial a- doption factors with Analytic Hierarchy Process (AHP) 显示文摘 | Nikou S Mezei J | 2013 | Tele- communications Policy2013，37，10： | 1 |
| 7 | Visual Tracking by Adaptive Kalman Filtering and Mean Shift 显示文摘 | Vasileios K Christophoros Nikou Aristidis Likas | 2010 | Springer-Verlag Berlin Heidelberg2010，6040，： | 1 |
| 8 | Automated detection of cell nuclei in pap smear images using morphological recon- struction and clustering显示文摘 | Plissiti M E Nikou C Charchanti A | 2011 | IEEE Trans on Information Tech- nology in Biomedicine2011，15，2： | 1 |
| 9 | Visual tracking using the Earth mover's distance between Gaussian mixtures and Kalman filtering显示文摘 | Karavasilis V Nikou C Likas A | | 0，，04： | 1 |
| 10 | Effect of 131I treatment on the calcitonin response to calcium infusion in hyperthyroid patients 显示文摘 | Tzanela M Thalassinos NC Nikou A | 1993 | Clin Endocrinol (Oxf)1993，38，1： | 1 |
| 11 | Effect of octreotide administration on serum interleukin-6(IL-6) levels of patients with acute edematous ancreatitis显示文摘 | Giamarellos-Bourbsulis EJ Grecka P | 2004 | Hepatogastroenterology2004，51，56： | 1 |
| 12 | The significance of the dosage adjustment of octreotide in the treatment of acute pancreatitis of moderate severity显示文摘 | Nikou GC Arnaoutis TP Giamarellos Bourboulis EJ | 2001 | Hepatogastroentemlogy2001，8，42： | 1 |
| 13 | A classadaptive spatially variant mixture model for image segmentation显示文摘 | Nikou Christophoros Galatsanos Nikolaos Likas Aristidis | 2007 | IEEE Transactions on Image Processing2007，16，4： | 1 |
| 14 | Information Theory-based Shot Cut/fade Detection and Video Summarization 显示文摘 | CERNEKOVA Z PITAS I NIKOU C | 2006 | IEEE Trans Circuits Syst Video Technol2006，16，： | 1 |
| 15 | The significance of the dosage adjustment of octreotide in the treatment of acute pancreatitis of moderate severity 显示文摘 | Nikou GC Arnaoutis TP Giamarellos-Bourboulis EJ | 2001 | Hepatogastroenterology2001，48，42： | 1 |
| 16 | MRI-based Surgical Navigation System for ACL Reconstruction 显示文摘 | Jaramaz B Nikou C Watterson N | 2006 | Jounal of Biomechanics2006，39，： | 1 |
| 17 | Detection of knockdown resistance (kdr) mutations in Anopheles gambiae: a comparison of two new high-throughput assays with existing methods 显示文摘 | Bass C Nikou D Donnelly M J | 2007 | Malar J2007，8，13： | 1 |
| 18 | Information Theory-based Shot Cut/Fade Detection and Video Summarization显示文摘 | Cernekova Z Pitas I Nikou C | 2006 | IEEE Transactions on Circuits and Systems for Video Technology2006，16，1： | 1 |
| 19 | The significance of the dosage adjustment of octreotide in the treatmeaat of acute pancreatitis of moderate severity显示文摘 | Nikou GC Amaoutis TP Giamarellos-Bourboulis EJ | 2001 | Hepatogastroentemlogy2001，48，42： | 1 |
| 20 | Visual Tracking Using the Earth Mover's Distance Between Gaussian Mixtures and Kalman Filtering 显示文摘 | Karavasilis V Nikou C Likas A | 2011 | Image and Vision Computing2011，29，5： | 1 |
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