Govt. College of Arts,Science & Commerce, Khandola, Marcela-Goa

Accredited by NAAC with Grade A+ (CGPA: 3.43)

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IMPACT OF COVID-19 VACCINES ON THE HEALTH OF INDIVIDUALS ACROSS VARIOUS AGE GROUPS IN GOA
(ICT Academy, 2025) D’Costa, Dilecta; Dhuri, Pooja
Amidst the covid-19 pandemic, vaccination plays a crucial role to mitigate the spread of the virus and its adverse effects on public health. With widespread rollout of SARS-CoV-2 vaccines that have received emergency use authorization by the WHO across the world, understanding dynamics of vaccines among various demographics is important for vaccine acceptance and to enhance vaccine uptake and address vaccine hesitancy effectively. The goal of this study is to explore the impact of Covid-19 vaccine on health of different age group individuals across Goa (India). Using a comprehensive survey methodology, data was collected involving participants from diverse age brackets ranging from young adults to the elderly, residing in different regions of Goa regarding vaccination status, reasons for vaccine acceptance or hesitancy, experiences with side effects, and overall perception of vaccine efficacy. Additionally, it also focuses on the emergence of mutant strains of the virus and waning of vaccine effectiveness over a period of time. By analyzing the survey responses, pimples, fever, chest pain, cardiac attack, menstrual changes, pain at injection site were the most common symptoms documented. Statistical analysis using PSPP software and Microsoft excel worksheet showed association between age and adverse effects post vaccination concluding that as age increases adverse effects of the vaccine also increases. It was also reported that there is substantial association between the Covid-19 vaccine and its adverse effects. It also highlighted that booster dose uptake is relatively lower in Goa with the Covishield vaccine being more widely accepted compared to Covaxin among individuals.
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Investigating the Dielectric, Magnetic, and Optical Properties of Neodymium Doped Nickel Zinc Ferrites (Ni0.4Zn0.6NdxFe2−xO4)
(John Wiley & Sons, 2026) Audi, Deepa Manguirish; Anvekar, Tushar S.
In this study, we have reported the synthesis of Ni0.4Zn0.6NdxFe2−xO4 with varying concentrations of neodymium (x = 0,0.025,0.05,0.075, 0.1) by sol gel method. The effect of neodymium doping on the structural parameters, magnetic properties, dielectric behavior, AC conductivity, and optical properties has been investigated in detail. Formation of a single phase in all prepared compositions except at x = 0.1 was confirmed by the XRD technique. The EDX analysis has confirmed the compositional uniformity and high purity. The VSM analysis has revealed ferrimagnetic behavior of the doped ferrites. The composition with neodymium content, x = 0.05, is reported to have the lowest coercivity, minimum dielectric loss and reasonably good dielectric constant; therefore can be considered as a potential candidate for high frequency applications. The UV-DRS measurements have revealed a decrease in bandgap thereby indicating possible photocatalytic applications.
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