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This research manuscript deals the electrocatalytic properties of spinel-type oxides of Co and Fe having composition CoxFe3-xO4 (0≤x≤1.5) which is synthesized by natural egg-white mediated sol-gel route. Physicochemical studies (IR and XRD) indicated the formation of almost pure spinel phase of the oxide. Morphological structure in the form of film on Ni-support was observed to be the same except CoFe2O4, which showed some aggregation on the surface of support. For electrochemical characterizations, the oxide powder was transfered to film electrode on the pre-treated Ni-support. The cyclic voltammogram (CV) recorded in 1M KOH at 25°C in the potential region 0.0-0.7 V showed a pair of redox peaks, one anodic (EPa=51212mV) and corresponding cathodic (EPc=359  10mV), prior to oxygen evolution reaction (OER). The anodic polarization study showed that the substitution of Co for Fe in the Fe3O4 lattice marginally improved the electrocatalytic activity of the materials and it is found to the greatest with 0.5 mol Co-substitution. The substitution of Co increased the Tafel slope value, but the order of reaction was almost unity with each electrocatalyst. The standard electrochemical enthalpy of activation (∆H el°≠ ), standard enthalpy of activation (∆H°≠) and standard entropy of activation (∆S°≠) have been determined by recording the anodic polarization at different temperatures. The value of ∆H el°≠ was found to be minimum with most active Co0.5Fe2.5O4 electrode.

Background: Pyrexia in pregnancy is a very common clinical problem worldwide. Fever during pregnancy causes significant maternal and fetal complications. Fetus being an integral part of the feto-maternal unit and pregnancy involving numerous physiological changes and adaptations, pyrexia during the pregnancy affects both the mother and her foetus adversely. Effect of pyrexia on pregnancy depends on the extent of the rise in the temperature.Methods: This is a prospective observational hospital-based study conducted over a period of 1 year from march 2018 to February 2019 Department of Obstetrics and Gynaecology, Sultania Zanana Hospital, Gandhi Medical College, Bhopal.Results: Total no. of antenatal admission in Hospital during study period were 15354. Total 306 cases of pyrexia in pregnancy were found during the study period. Incidence of pyrexia in pregnancy in our study during study period was found 2%.Conclusions: The present study has demonstrated a need for multidisciplinary approach in cases of pregnancy complicated with pyrexia and also higher risk of maternal morbidity and mortality in un-booked patients. We found that pregnancy outcomes were good in booked cases with regular checkup. Early detection and management of patients with pyrexia can certainly help to improve maternal and fetal outcome. This also shows that multidisciplinary approach should extent throughout antenatal, intra-partum and postpartum period.