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Khadija EL. Mouaden D.S. Chauhan M.A. Quraishi Lahcen Bazzi 《Sustainable Chemistry and Pharmacy》2020
A facile single-step synthesis was performed to cross-link chitosan with thiocarbohydrazide to yield thiocarbohydrazide-chitosan (TC-Cht) which was for the first time evaluated as an inhibitor for corrosion of stainless steel in 3.5% NaCl solution. A comprehensive electrochemical analysis employing electrochemical impedance spectroscopy (EIS), potentiodynamic polarization (PDP), and cyclic voltammetry (CV) was undertaken and showed that the TC-Cht acts by adsorption on the steel surface and exhibits mixed type behavior with predominantly cathodic nature. The adsorption of TC-Cht molecules on the surface of stainless steel followed the Langmuir isotherm. The TC-Cht showed a high inhibition efficiency of >94% at 500 mg L?1 concentration. Surface investigation using SEM and EDX supported the inhibitor adsorption on the steel surface. 相似文献
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Hadj Omar El Malki Yasser El Mejdoubi Amine Souadka Belkacem Zakri Raouf Mohsine Lahcen Ifrine Redouane Abouqal Abdelkader Belkouchi 《Journal of gastrointestinal surgery》2010,14(7):1121-1127
Background and aims
Hydatid disease is still a major health problem in sheep-raising areas. Surgery remains the basic treatment for liver hydatid cyst (LHC). However, recurrences can occur after all therapies. Surgery for recurrence of LHC becomes technically more difficult with higher rate of morbidity and mortality. The aim of this study was to determine perfective factors associated to hepatic recurrence after LHC surgery and to propose and discuss postoperative follow-up schedules. 相似文献9.
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Bensghir M Elwali A Miller C Azendour H Drissi M Bakkali H Belyamani L Atmani M Drissi Kamili N 《Gynécologie, obstétrique & fertilité》2008,36(5):516-520
OBJECTIVE: Evaluate the effects of skin infiltration with ropivacaine 0,75% on postoperative pain after caesarean section in the first 24h. PATIENTS AND METHODS: A prospective randomized double blind study was realized during three months in Auxerre Hospital. All ASA 1-2 patients presenting for elective caesarean section under spinal anesthesia were enrolled in the study. Drug addicts and patients with chronic pain were excluded from the study. The patients were randomly divided into two groups to receive skin infiltration 20 ml of ropivacaine 0,75% (Gr R) or skin infiltration of 20 ml of 0,9% saline solution. All patients received systematically propacetamol 1g per six hours and ketoprofen 50mg per six hours. Intravenous morphine titration was delivered to patients with a simple numerical scale greater or equal to three (SNS> or =3). Postoperative pain (SNS), morphine consumption and adverse reactions were compared. RESULTS: From July to September 2005, 42 patients were enrolled in the study. The SNS was lower in the Gr R. Total morphine consumption was reduced in the Gr R. The incidence of the adverse effects were higher in the Gr P. One case of parietal haematoma was detected in the Gr P, the evolution of which was favorable. DISCUSSION AND CONCLUSION: Skin infiltration of ropivacaine 0,75% is a simple technique able to reduce postoperative pain score and morphine consumption after caesarean section. 相似文献