RESUMEN
BACKGROUND: Internet gaming has gained popularity since the millennium, greatly expanding both the game industry and the player base. Moreover, internet gaming disorder (IGD) is a condition included in the most recent version of the Diagnostic and Statistical Manual of Mental Disorders 5 (DSM-5) for further study. AIM: To assess the prevalence of IGD and its association with physical symptoms among dental students in Belagavi, India. MATERIALS AND METHODS: A cross-sectional study was conducted among 385 dental students, chosen through simple random sampling. Data were gathered using a pre-validated, closed-ended questionnaire, incorporating the 9-item DSM-5 short version. The questionnaire was administered to undergraduate students during theory classes and collected after 10 minutes, while postgraduate students received it in their respective departments. To identify significant differences, Chi-square and analysis of variance (ANOVA) tests were applied, with statistical significance established at p ≤ 0.05. RESULTS: A total of 385 responses were collected, comprising 86 males (22.3%) and 299 females (77.7%). Among the respondents, 28 (7.2%) were diagnosed with IGD, while 123 (31.8%) were identified as risky gamers. Significant differences were found between disordered, risky, and normal gamers concerning sleep-related problems (p ≤ 0.05). CONCLUSION: The prevalence of IGD and risky gamers was 7.2% and 31.8% respectively. There was a significant association between disordered, risky, and normal gamers with daily routine activities.
RESUMEN
A novel green source was opted to synthesize silver nanoparticles using dried roasted Coffea arabica seed extract. Bio-reduction of silver was complete when the mixture (AgNO3+extract) changed its color from light to dark brown. UV-vis spectroscopy result showed maximum adsorption at 459 nm, which represents the characteristic surface plasmon resonance of nanosilver. X-ray crystal analysis showed that the silver nanoparticles are highly crystalline and exhibit a cubic, face centered lattice with characteristic (111), (200), (220) and (311) orientations. Particles exhibit spherical and ellipsoidal shaped structures as observed from TEM. Composition analysis obtained from SEM-EDXA confirmed the presence of elemental signature of silver. FTIR results recorded a downward shift of absorption bands between 800-1500 cm(-1) indicting the formation of silver nanoparticles. The mean particle size investigated using DLS was found to be in between 20-30 nm respectively. Anti-bacterial activity of silver nanoparticles on E. coli and S. aureus demonstrated diminished bacterial growth with the development of well-defined inhibition zones.