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Abstract The iron-based ceramic NdFeAsO was synthesized by the solid-state reaction method. The tetragonal crystal structure was confirmed at room temperature through the X-ray diffraction technique. The dielectric characteristics i.e. dielectric constant (εr) and loss tangent (tanδ) of the sample were studied at a wide range of temperature and frequencies with an impedance analyzer and revealed that these quantities decreased with an increase in frequency. The dielectric anomalies were observed in the studied sample, which was found to be shifting towards the higher temperature side on increasing the frequency. The analysis of ac conductivity data of the compound obeyed Jonscher’s universal power law as well as the Arrhenius equation. The compound showed a negative temperature coefficient of resistance (NTCR) behavior. The electrical conduction mechanism in the sample can be explained through the correlated barrier hopping (CBH) model.

Mobile communication has been one of the prime disruptors of the modern times. Since the 1980s, the world has witnessed new generation of mobile communication technologies every decade. Each new incoming generation is better than the previous one in several ways. The recently arrived fifth generation (5G) has several advanced features when compared with its predecessor. However, it is clear that there will be several shortcomings in this generation when compared with the other advanced contemporary information and communication technologies (ICTs). These shortcomings of 5G are going to be the main motivation for the next new mobile generation. According to the existing trends in ICTs, the new incoming version will be known as the Sixth Generation of Mobile Communication (6G). In this article, we show the main driving forces behind 6G, its expected features and key enabling technologies. The market potentials and disrupting features have also been discussed.s supported by these approaches. In this work we present a review of solutions for PMS challenging instances

Objective: To translate Oral Health Literacy – Adult Questionnaire from English to Odia language and test its psychometric properties and assess its influence on oral health status of school teachers. Material and Methods: A cross-sectional survey was performed among 400; 116 (29%) males and 284 (71%) female school teachers of Bhubaneswar. OHL-AQ questionnaire subsequent to being translated to Odia language utilizing World Health Organization recommended translation back translation protocol was then tested for the establishment of its psychometric properties with assistance from the selected expert panel of academicians. The oral health status of participants was assessed using the WHO oral health assessment form-2013. Chi-square, t-tests, one-way ANOVA, and linear regression were used for statistical analysis. Results: Internal consistency of OHL-AQ-O was acceptable with an alpha value of 0.70. Test-retest reliability showed almost perfect agreement (ICC=0.90, CI=0.85-0.93) indicating highly reliable translated scale (p=0.001). Overall mean oral health literacy scores were 13.02±1.86, with about 80% belonging to the high oral health literacy level group. Caries prevalence was 78%, with a mean DMFT of 3.04±2.55. Shallow pockets were absent majorly in teachers belonging to the high oral health literacy group (p=0.01). The multiple linear regression model depicted that only the teaching experience variable added significantly to the prediction (p=0.008). Conclusion: OHL-AQ-O questionnaire was found valid and reliable to measure OHL. Further application of the instrument in other communities and populations will support establishing the external validity of the OHL-AQ-O.

Objective: To establish the validity of COVID-19 Peritraumatic Distress Index (CPDI) questionnaire and assess the stress with its associated factors during COVID-19 among dental professionals in Bhubaneswar, India. Material and Methods: An online survey through Google Forms was steered among 234 dentists. CPDI questionnaire was used for data collection post its validation assessment. Content validity was judged satisfactory by two psychiatrists, and excellent internal consistency was found (Cronbach’s alpha = 0.92). For statistical analysis, chi-square and binomial logistic regression tests were used with a significance level of p≤0.05. Results: 70 (29.9%) were males and 164 (70.1%) were females with a mean age of 30.58 ± 6.70 years. Around 50% had an MDS degree and were attached to an institution and nearly 80% were having experience of less than 10 years. The mean CPDI score was found to be 29.09 ± 15.47. A statistically significant association was observed between CPDI scores with age (p