Students Perception toward Effectiveness of Online Learning during COVID-19 Pandemic among University Dental Students in India and United Arab Emirates: A Multi Centric Study.

Objectives: The rationale of this study was to compare the efficiency of online learning and the differences in outcome between the two universities in India and United Arab Emirates (UAE).

Materials And Methods: A cross-sectional study was conducted with a validated questionnaire among dental students of a dental college in India and a dental college in the UAE. The data were analyzed using the SPSS software version 22, and comparison was done using the Chi-square test, ANOVA, correlation, and regression analysis.

AI Based Diagnosis of Pneumonia.

Pneumonia is a lung infection caused by bacteria, viruses and fungi. In this infection, the air sac (alveoli) of the lungs gets inflamed and breathing becomes difficult which causes mild to severe illness among people. They are diagnosed by performing chest X-ray, blood test, pulse oximetry.

COVID-19: Invasion, pathogenesis and possible cure - A review.

Today, Coronavirus disease (COVID-19) which is believed to be transmitted from bats to humans where the people of Wuhan city, China exposed to the wet animal market is an important international public health anxiety (Xiong et al., 2020). Although, several measures were undertaken to treat the diseases by various medical advancements and by a variety of treatment procedures, still the mortality is higher.

Graphene oxide-rhodamine nanocomposite for picomolar detection of chromium(III) by fluorimetry and its biofilm inhibition.

Graphene oxide-rhodamine B hydrazide (GO-RhB) nanocomposite was prepared by a simple chemical method and characterized by various spectroscopic and analytical techniques. GO-RhB nanocomposite potentially detects Cr ion (excitation/emission = 550 nm/572 nm) via fluorescence turn "on-off" approach. This composite showed high binding affinity (10 M) with Cr and a+ limit of detection (LOD) down to picomolar concentration (LOD = 85.

Fabrication of graphene oxide-p-phenylenediamine nanocomposites as fluorescent chemosensors for detection of metal ions.

In this work, graphene oxide-p-Phenylenediamine nanocomposites of two different ratios of Graphene oxide: p-Phenylenediamine (1:1 and 1:5) were prepared and characterized by using analytical, spectroscopic and microscopic studies (GO-pPD 11 and GO-pPD 15). These nanocomposites were employed as fluorescent chemosensors for sensing potential cations. Remarkably, graphene oxide-p-Phenylenediamine nanocomposites of ratio 1:1 (GO-pPD 15) was selective and sensitive to Ag ions, whereas the graphene oxide-p-Phenylenediamine nanocomposites of ratio 1:5 (GO-pPD 15) was selective to Ceions.

Influence of the Positioning of the Incorporated Carbon Nanostructures on the Morphology and Photocatalytic Activity of Microwave Synthesized ZnO Nanorods.

In the present work, ZnO nanorods and ZnO/GO/CNT nanocomposite have been prepared by microwave assisted method using various time of incorporation of GO/CNT. The structural and optical characterizations were performed by X-ray diffraction (XRD), Scanning electron microscope (SEM), UV-Visible spectrometer (UV-Vis) and Photoluminescence (PL). The XRD data showed that the most intense peak at 36° belong to (101) plane of ZnO nanorods.

TiO₂ Decorated Graphene as a Fluorescent Chemosensor for the Detection of Silver Ions.

In this report, a new design is proposed for the detection of silver ions using Graphene Oxide-Titanium oxide (GO/TiO₂) composite. The GO was synthesized by modified Hummers method and the composite is synthesized by chemical reflux method. The surface morphology of the composite was analyzed using a scanning electron microscope (SEM), and it is clearly observed that TiO₂ spheres are adsorbed on the surface of GO in a disordered manner.

Investigation of the visible light photocatalytic activity of BiVO prepared by sol gel method assisted by ultrasonication.

Visible light induced photocatalyst BiVO with monoclinic scheelite structure has been synthesised via sol gel method assisted by ultrasonication. The prepared samples were characterised using X-ray diffraction (XRD), scanning electron microscope (SEM), UV-Vis diffused reflectance spectroscopy (DRS) techniques. The photocatalytic efficiency was evaluated by decolourisation of MB under visible light irradiation.

Calnuc: Emerging roles in calcium signaling and human diseases.

Calnuc is a recently discovered multidomain protein with EF-hand calcium binding sites. Several studies have reported various interacting partners for calnuc and, therefore, also different sites of localization in the cell. It interacts with important molecules such as DNA, G protein, COX, and amyloid precursor protein among others in addition to being involved in stress response and trafficking.