42 research outputs found

    Design and Construction of a Simple Cell Using Acids.

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    This project focused on the design and construction of a simple cell using acids. The simple cell involves two electrodes that is zinc and copper, an electrolyte (dilute sulphuric acidic), connecting wires, and a voltmeter. It involves submerging the electrodes into dilute sulphuric acid along which the values of EMFs will be read from the corresponding volume and concentration of the electrolyte. simple cells are commonly known as batteries which provide a portable form of electrical energy

    Rao Bakuru, Vasudeva

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    Cooperative catalysis at the metal–MOF interface: hydrodeoxygenation of vanillin over Pd nanoparticles covered with a UiO-66(Hf) MOF

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    Cooperative catalysis has been demonstrated over metal–MOF hybrids for the conversion of vanillin (biomass based platform molecules) into value-added 2-methoxy-4-methylphenol.</p

    Transfer hydrogenation of alkynes into alkenes by ammonia borane over Pd-MOF catalysts

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    Ammonia borane with both hydridic and protic hydrogens in its structure acted as an efficient transfer hydrogenation agent for selective transformation of alkynes into alkenes in non-protic solvents.</p

    A randomised study to evaluate the efficacy of isotretinoin, electrodessication and comedone extraction in the treatment of comedonal acne

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    &lt;p class="abstract"&gt;&lt;strong&gt;Background:&lt;/strong&gt; Comedonal acne commonly seen in adolescents and young patients which is refractory to standard treatments. This study is being undertaken to determine the efficacy and adverse effects of oral isotretinoin, electrodessication and comedone extraction in patients of comedonalacne.&lt;/p&gt;&lt;p class="abstract"&gt;&lt;strong&gt;Methods:&lt;/strong&gt; A total of 120 patients of comedonal acne were enrolled and randomly divided into 4 groups of 30 patients each. Group A, B, C and D patients were treated with isotretinoin (20 mg daily), electrodessication, comedone extraction (4 weeks interval) and topical antibiotic daily for 12 weeks. The response in each group was assessed based on decrease in total comedonal count after 12 weeks of treatment. Statistical analysis was done using chi square test.&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;&lt;p class="abstract"&gt;&lt;strong&gt;Results:&lt;/strong&gt; Eighty seven (72%) cases had predominantly closed comedones and 33 (27%) cases showed open comedones. After 12 weeks of treatment, more than 75% decrease in comedonal count was seen in 60% of patients in electrodessication group followed by 30% (isotretinoin), 13.3% (comedone extraction). The decrease in total number of comedone was significantly higher with electrodessication (84.4%) followed by isotretinoin (73%), comedone extraction (43.2%) and topical antibiotic (5.7%). After follow up of 3 months, recurrence of comedones was least with isotretinoin followed by comedone extraction and electrodessication.&lt;/p&gt;&lt;p class="abstract"&gt;&lt;strong&gt;Conclusions:&lt;/strong&gt; For comedonal acne, initial electrodessication followed by isotretinoin over 12 weeks gives the best outcome of quick remission and least recurrence. Electrodessication and comedone extraction are the preferred modalities in patients with predominantly closed and open comedones respectively.&lt;/p&gt;&lt;p class="abstract"&gt; &lt;/p&gt;</jats:p
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