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| 1 | Photocatalytic degradation of 4-chlorophenol under P-modified TiO2/UV system: Kinetics, intermediates, phytotoxicity and acute toxicity显示文摘A series of phosphorus-modified titanium dioxide samples with varying P/Ti atomic ratio were conveniently prepared via a conventional solgel route. The effects of phosphorus content and calcination temperature on the crystalline structure, grain growth, surface area, and the photocatalytic activity of P-modified TiO2 were investigated. The XRD results showed that P species slow down the particle growth of anatase and increase the anatase-to-rutile phase transformation temperature to more than 900°C. Kinetic studies on the P-modified TiO2 to degraded 4-chlorophenol had found that the TP5500 prepared by adopting a P/Ti atomic ratio equal to 0.05 and calcined at 500°C had an apparent rate constant equal to 0.0075 min 1, which is superior to the performance of a commercial photocatalyst Degussa P25 Kapp = 0.0045 min 1 and of unmodified TiO2 (TP0500) Kapp = 0.0022 min 1. From HPLC analyses, various hydroxylated intermediates formed during oxidation had been identified, including hydroquinone (HQ), benzoquinone (BQ) and (4CC) 4-chlorocatechol as main products. Phytotoxicity was assessed before and after irradiation against seed germination of tomato (Lycopersicon esculentum) whereas acute toxicity was assessed by using Folsomia candida as the test organism. Intermediates products were all less toxic than 4-chlorophenol and a significant removal of the overall toxicity was | Kais Elghniji Olfa Hentati Najwa Mlaik Ayman Mahfoudh Mohamed Ksibi | 2012 | Journal of Environmental Sciences2012,24,3: | 9 |
| 2 | Chemical composition of Rosmarinus and Lavandula essential oils and their insecticidal effects on Orgyia trigotephras(Lepidoptera,Lymantriidae)显示文摘Objective:To evaluate toxic activities of essential oils obtained from Rosmarinus officinalis and Lavandula stoechas against the fourth larval instars of Orgyia trigotephras.Methods:A total of 1 200 larvae were divided into three groups Ⅰ,Ⅱ,Ⅲ.Group Ⅰ was to investigate the effect of extracted essential oils from these aromatic plants as gastric disturbance.Bacillus thuringiensis and ethanol were used as control group.Group Ⅱ was used as contact action and Group Ⅲ was used as fumigant action.Oecis and ethanol were used as control group.During the three experiments,the effect of essential oils on larvae was assessed.Results:The chemical composition of essential oils from two medicinal plants was determined and,their insecticidal effects on the fourth larval slate of Orgyia trigotephras were assessed.The two simples presented an insecticidal activity,nevertheless Rosmarinus officinalis essential oil was less efficient compared to Lavandula stoechas one are discussed.Conclusions:The relationship between the chemical composition and the biologieal activities is confirmed by the present findings.Therefore the potential uses of these essential oils as bioinsecticides can he considered as an alternative to the use of synthetic products. | Ben Slimane Badreddine Ezzine Olfa Dhahri Samir Chograni Hnia Ben Jamaa Mohamed Lahbib | 2015 | Asian Pacific Journal of Tropical Medicine2015,8,2: | 5 |
| 3 | Analysis of Genetic Diversity and Relationships in a Tunisian Fig (Ficus carica) Germplasm Collection by Random Amplified Microsatellite Polymorphisms显示文摘随机的放大微卫星多型性方法为土地用 18 教材联合跑的一套突尼斯的微量被进行。63 个随机的 amplifiedmicrosatellite 多型性标记的一个总数被获得并且过去常在这些栽培变种估计基因差异或检测贴错标签的盒子。数据证明设计过程组成阻止收音机暴露的一个吸引人、快速、便宜的方法。我们识别了在在这庄稼检测遗传性多态现象是很有效的教材联合。有算术一般水准 dendrogram 的导出的未加权的对组方法在陆地赛跑和存在之中显示出基因分叉一典型地连续性变异。在树的性之间的重要关联没被观察。用上述的标记,在陆地赛跑之间的歧视被完成。因此,随机的放大微卫星多型性被证明在描绘本地微量细菌原生质高度有效…… | Khaled Chatti Olfa Saddoud Amel Salhi-Hannachi Messaoud Mars Mohamed Marrakchi Mokhtar Trifi | 2007 | Journal of Integrative Plant Biology2007,49,3: | 2 |
| 4 | Comparative study on volatile compouds from tunisian and sicili an monovarietal virgin olive oils显示文摘 | Olfa Baccouri Alessandra Bendini Lorenzo Cerretani | 2008 | Food Chemistry2008,111,2: | 1 |
| 5 | A Donsker Delta Functional Approach to Optimal Insider Control and Applications to Finance显示文摘We study optimal insider control problems,i.e.,optimal control problems of stochastic systemswhere the controller at any time t,in addition to knowledge about the history of the system up to this time,also has additional information related to a future value of the system.Since this puts the associated controlled systems outside the context of semimartingales,we apply anticipative white noise analysis,including forward integration and Hida-Malliavin calculus to study the problem.Combining this with Donsker delta functionals,we transform the insider control problem into a classical(but parametrised)adapted control system,albeit with a non-classical performance functional.We establish a sufficient and a necessary maximum principle for such systems.Then we apply the results to obtain explicit solutions for some optimal insider portfolio problems in financial markets described by Itô-Lévy processes.Finally,in the Appendix,we give a brief survey of the concepts and results we need from the theory of white noise,forward integrals and Hida-Malliavin calculus. | Olfa Draouil BerntФksendal | 2015 | Communications in Mathematics and Statistics2015,3,3: | 1 |
| 6 | Response to drought of two olive tree cultivars显示文摘 | Olfa Boussadia Fethi Ben Mariem | 2008 | Scientia Horticulturae2008,116,: | 1 |
| 7 | RUNX2 regulates the effects of TNFalpha on proliferation and apoptosis in SaOs-2 cells显示文摘 | Olfa G Christophe C Philippe L | 2010 | Bone2010,46,4: | 1 |
| 8 | RPL in a Nutshell:A Survey显示文摘 | Olfa G Koubaa A | 2012 | Computer Networks2012,56,14: | 1 |
| 9 | The fuzzy artificial immune system:motivations,basic concepts and application to clustering and web profiling显示文摘 | Olfa N Fabio G Dipankar D | 2002 | Fuzzy system2002,1,2: | 1 |
| 10 | Chemical composition and oxidative stability of Tunisian monova-rietal virgin olive oils with regard of fruit ripe- ning显示文摘 | Olfa Baccouri Mokhtar Guerfel Bechir Baccouri | 2008 | Food Chemistry2008,109,: | 1 |
| 11 | A Solvent-Stable Metalloprotease Produced by Pseudomonas aeruginosa A2 Grown on Shrimp Shell Waste and Its Application in Chitin Extraction显示文摘 | GHORBEL-BELLAAJ OLFA JELLOULI KEMEL YOUNES ISLEM | 2011 | Applied Biotechnology and Biotechnology2011,164,4: | 1 |
| 12 | Chitin and chitosan preparation from shrimp shells using optimized enzymatic deproteinization显示文摘 | Islem Younes Olfa Ghorbel-Bellaaj Rim Nasri | 2012 | Process Biochemistry2012,47,12: | 1 |
| 13 | Flocking for Multi-agent Dynamic Systems:Algorithms and Theory显示文摘 | OLFA TI-SABER R | 2006 | IEEE Transactions on Automatic Control2006,51,3: | 1 |
| 14 | The Fuzzy Artificial Immune System:Motivations,Basic Concepts and Application to Clustering and Web Profiling显示文摘 | Olfa Nasaroui Fabio Gonzdez Dipankar Dasgupta | 2002 | Fuzzy System2002,1,2: | 1 |
| 15 | MicroRNAs 146a and 147b Biomarkers for Colorectal Tumor’s Localization显示文摘 | Inés Omrane Nadia Kourda Nejla Stambouli Maud Privat Imen Medimegh Amira Arfaoui Nancy Uhrhammer Karim Bougatef Olfa Baroudi Hassen Bouzaienne Raja Marrakchi Yves-Jean Bignon Amel Benammar-Elgaaied Peng Zhang | 2014 | BioMed Research International2014,,: | 1 |
| 16 | Artemisia campestris phenolic compounds have antioxidant and antimicrobial activity显示文摘 | Wided Megdiche-Ksouri Najla Trabelsi Khaoula Mkadmini Soumaya Bourgou Amira Noumi Mejdi Snoussi Rahma Barbria Olfa Tebourbi Riadh Ksouri | 2015 | Industrial Crops & Products2015,,: | 1 |
| 17 | Extraction and characterization of chitin, chitosan, and protein hydrolysates prepared from shrimp waste by treatment with crude protease from bacillus cereus SV1 显示文摘 | Manni Laila Ghorbel-Bellaaj Olfa Jellouli Kemel | 2010 | Pplied Biochemistry and Biotechnology2010,162,2: | 1 |
| 18 | Changes in cell/tissue organization and peroxidase activity as markers for early detection of graft incompatibility in peach/plum combinations显示文摘 | Olfa Zarrouk Pilar S T María Carmen Risue(n)o | | 0,,: | 1 |
| 19 | Evaluation and optimization of a commercial enzyme linked immunosorbent assay for detection of Chlamydophila pneumoniae IgA antibodies显示文摘 | Olfa FG Gdoura R Znazen A | 2008 | BMC Infect Dis2008,26,8: | 1 |
| 20 | Extraction and Characterization of Chitin, Chitosan, and Protein Hydrolysates Prepared from Shrimp Waste by Treatment with Crude Protease from Bacillus cereus SV1显示文摘 | Laila Manni Olfa Ghorbel-Bellaaj Kemel Jellouli Islem Younes Moncef Nasri | 2010 | Applied Biochemistry and Biotechnology2010,,2: | 1 |