Substituent Effect in the Oxidation of Phenols by Peroxydisulphate Ion in Aqueous Ethanol, t-Butanol, Acetonitrile & Acetone

1070-107

Kinetics &Mechanism of Oxidation of Sulphanilamide by Peroxomonophosphoric Acid

207-21

Kinetics & Mechanism of Oxidation of Aralkyl Amines by Peroxomonophosphoric Acid

361-36

Kinetics & Mechanism of Os(VIII)-catalysed Oxidation of Aromatic Aldehydes by Sodium Periodate

1066-106

Ce(IV) Oxidation of Cyclopentanone, Cyclohexanone, Cycloheptanone, Cyc1ooctanone, Acetone, Butanone, Acetoacetic Ester & Benzoylacetone

579-58

Kinetics of Reaction of Methylene Iodide with Alkoxide Ion in Binary Solvent Mixtures

136-14

Outcome of external cephalic version (ECV) in singleton pregnancy with uncomplicated breech presentation at term in a tertiary rural hospital

Background: Breech presentation is the most common malpresentation. The incidence of breech presentation at term is 3-4%. Objective of present study was to evaluate the outcome of external cephalic version (ECV) in singleton pregnancy with uncomplicated breech presentation at term in tertiary rural hospital and to analyze the immediate and ultimate outcome of external cephalic version done in term pregnancy with breech presentation with gestational age ≥37 weeks.Methods: This study was conducted at MIMER Medical college and BSTR Hospital, Talegaon Dabhade. Patients with breech presentation at term were studied over duration of 2½ years. 50 patients with breech presentation ≥37 weeks fulfilling the inclusion criteria underwent External cephalic version (ECV). Further obstetric progress is studied with the perinatal outcome and results were analyzed.Results: ECV was successful in 66% cases, out of which 88% cases had vaginal delivery and 12 % cases had LSCS for obstetric indication. Perinatal outcome was not affected with ECV.Conclusions: ECV at term significantly reduces both the incidence of breech delivery and caesarean section rate for breech delivery. ECV does not adversely affect the maternal and perinatal outcome

Optical absorption and photoluminescence spectroscopy of the growth of silver nanoparticles

Results obtained from the optical absorption and photoluminescence (PL) spectroscopy experiments have shown the formation of excitons in the silver-exchanged glass samples. These findings are reported here for the first time. Further, we investigate the dramatic changes in the photoemission properties of the silver-exchanged glass samples as a function of postannealing temperature. Observed changes are thought to be due to the structural rearrangements of silver and oxygen bonding during the heat treatments of the glass matrix. In fact, photoelectron spectroscopy does reveal these chemical transformations of silver-exchanged soda glass samples caused by the thermal effects of annealing in a high vacuum atmosphere. An important correlation between temperature-induced changes of the PL intensity and thermal growth of the silver nanoparticles has been established in this Letter through precise spectroscopic studies.Comment: 15 pages,4 figures,PDF fil

Sinusoidal Excitations in Two Component Bose-Einstein Condensates

The non-linear coupled Gross-Pitaevskii equation governing the dynamics of the two component Bose-Einstein condensate (TBEC) is shown to admit pure sinusoidal, propagating wave solutions in quasi one dimensional geometry. These solutions, which exist for a wide parameter range, are then investigated in the presence of a harmonic oscillator trap with time dependent scattering length. This illustrates the procedure for coherent control of these modes through temporal modulation of the parameters, like scattering length and oscillator frequency. We subsequently analyzed this system in an optical lattice, where the occurrence of an irreversible phase transition from superfluid to insulator phase is seen.Comment: 6 pages, 1 figur