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Green and Efficient Oxidation of Octanol by Iron Oxide Nanoparticles Supported on Activated Carbon

Modern Research in Catalysis 2015年第1期4卷 28-35页

作者： Mohammad Sadiq razia aman Saddam Hussain Muhammad Abid Zia Najeeb Ur Rahman Mohammad Saeed Department of Chemistry University of Malakand Khyber Pakhtunkhwa Pakistan Department of Chemistry University of Education Attock Campus Attock Pakistan Department of Chemistry GC University Faisalabad Pakistan

Iron oxide nanoparticles were synthesized by precipitation method and supported on activated carbon. The catalyst thus obtained was characterized by various physicochemical techniques, and used for the liquid phase dehydrogenation/oxidation of octanol in a batch reactor at various temperatures in the range 30 °C - 60 °C. Maximum conversion of octanol to octanal was attained at 60°C in 30 min. However, with longer reaction time, the selectivity of the catalyst was found to change in favor of octene as a product. The catalyst could be recovered and reused multiple times without any decline in its catalytic performance.

关键词： Liquid Phase Oxidation Dehydration Octanol

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Green and Sustainable Heterogeneous Organo-Catalyst for Asymmetric Aldol Reactions

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Modern Research in Catalysis 2015年第2期4卷 43-49页

作者： Mohammad Sadiq razia aman Khalid Saeed M. Sohail Ahmad M. Abid Zia Department of Chemistry University of Malakand Malakand Pakistan Department of Chemistry University of Education Attock Campus Attock Pakistan

Linear amino acids covalently supported on graphene sheet were employed as catalysts for asymmetric aldol reactions between cyclohexanone and aldehydes (aliphatic and/or aromatic) in a batch type reactor in the presence of water. The reactions were found to exhibit high yield as well as excellent ee value. Additionally, the catalysts were found to be truly heterogeneous and eco-friendly.

关键词： Immobilization Graphene Sheet Enantioselectivity Cyclohexanone Aldehyde

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Assessment of Retreatment Tuberculosis Cases amongst All Tuberculosis Cases Notification in District Swat 2015-2017: A Retrospective Cohort Review

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Journal of Tuberculosis Research 2019年第1期7卷 11-18页

作者： Zahir Shah Maqsood Ali Khan Hina Najmi razia Fatima Aashifa Yaqoob Abdul Ghafoor Ahmed Wali Amjad Khan Shah Hasan Khan Ghulam Mustafa Halepota Provincial Tuberculosis Control Program Swat Khyber Pakhtunkhwa Pakistan Sukh Initiative Aman Health Care Services Karachi Pakistan National Tuberculosis Control Program Islamabad Pakistan Provincial Tuberculosis Control Program Quetta Pakistan Pakistan Kidney and Liver Institute & Research Center Lahore Pakistan

Retreatment Tuberculosis (TB) has long been a neglected area in global TB control. To determine the notification of re-treatment Tuberculosis TB cases among all enrolled TB patients, we conducted a retrospective cohort review of routine program data from 2015-2017. A total of 8663 tuberculosis cases (all new and old forms) were registered at the study site. Of these, 1916 (22%) were pulmonary bacteriological confirmed;3498 (40.37%) were pulmonary clinical diagnosed and 3396 (39.20%) were clinically or bacteriological confirmed extra-pulmonary tuberculosis cases. Retreatment cases trend was found to be increased from 1% in 2015 to 1.6% in 2017. Majority of re-treatment cases were in the age group 18 - 43 years and only 7 patients were under the age of 15 years. This concludes that notification of re-treatment cases is very low among all enrolled TB patients and this could be possibly due to the fact that most of the re-treatment cases were registered as new cases or misdiagnosed. There is need and space to increase retreatment cases. Most of the re-treatment cases were usually converted to MDR-TB (Multi-Drug Resistant Tuberculosis) as noted in PMDT (Programmatic management of Drugs resistant tuberculosis) site. Therefore, proper history and diagnosis should be encouraged at the time of case notification.

关键词： Retreatment TB Cases Retrospective Cohort Swat Pakistan

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