Publications by authors named "K Balasubramani"

39 Publications

Epidemiology, Hot Spots, and Sociodemographic Risk Factors of Alcohol Consumption in Indian Men and Women: Analysis of National Family Health Survey-4 (2015-16), a Nationally Representative Cross-Sectional Study.

Front Public Health 2021 27;9:617311. Epub 2021 Aug 27.

Department of Epidemiology and Public Health, Central University of Tamil Nadu, Thiruvarur, India.

To map the alcohol hot spots and understand the Sociodemographic Indices (SDI) affecting alcohol consumption in Indian men and women. Data from National Family Health Survey-4 carried out from 2015 to 2016 with a sample size of 103,411 men and 699,686 women were used for Geographic Information System mapping, and hot spot identification by spatial statistics (Getis-Ord Gi). Bivariate analyses and multiple logistic regressions were used to analyze SDI. India has three major alcohol hot spots: (1) North-East (NE) states, (2) Eastern Peninsular states formed by Chhattisgarh, Odisha, Jharkhand, and Telangana, and (3) Southern states of Tamil Nadu and Kerala. Hot spot analysis strongly correlated with region-wise analysis of SDI. Respondents who consumed tobacco have higher odds (men adjusted odds ratio [aOR]: 5.42; women aOR: 4.30) of consuming alcohol. Except for religion and social category, other socioeconomic factors have a low to moderate effect on alcohol consumption. Hot spots and high-risk districts of alcohol consumption identified in this study can guide public health policies for targeted intervention. Alcohol use is at the discretion of individual states and union territories, and stringent anti-alcohol policies strictly enforced across India are the keys to control alcohol use.
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http://dx.doi.org/10.3389/fpubh.2021.617311DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8429933PMC
September 2021

Knowledge, Attitude, and Practice Behavior of Pediatric Dental Postgraduate Students on Non-restorative Cavity Control Technique: A Cross-sectional Study.

Int J Clin Pediatr Dent 2021 Mar-Apr;14(2):217-221

Department of Pediatric and Preventive Dentistry, KSR Institute of Dental Science and Research, Tiruchengode, Tamil Nadu, India.

Background: In the last few decades, the non-restorative treatment approach had been labeled by different names. The term non-restorative cavity control (NRCC) was recently established in 2016. The study aimed to evaluate the knowledge, attitude, and practice behavior about this technique among pediatric dental postgraduate students in India.

Materials And Methods: An 18-item questionnaire was prepared from the previously established literature. The sample size was calculated as 234 responses based on the pilot study. The questionnaires were sent to 1,200 participants through the registered email address and WhatsApp as a Google form link. The online responses were received for a period of 4 weeks from July to August of 2020. The data from the responses were collected and descriptive analysis was done using a Microsoft Excel sheet (Version 2016).

Results: A total of 380 responses were received and 35 duplicate responses were eliminated. Among the 345 respondents, 61 (17.7%) were males and 284 (82.3%) were females. The average age of the participants is 27.43 years. About 78.6% ( = 271), 17.1% ( = 59), and 4.3% ( = 15) of the participants were third-year, second-year, and first-year postgraduate students, respectively. The responses were received from 21 out of 24 states' colleges which were conducting pediatric dental postgraduate course. About 271 (76.8%) participants knew this technique with a maximum positive attitude and fewer practice behavior.

Conclusion: The knowledge and attitude about NRCC were good among the pediatric dental postgraduate students but implementing that in practice was relatively less.

How To Cite This Article: Balasubramani K, Asokan S, Geetha Priya PR. Knowledge, Attitude, and Practice Behavior of Pediatric Dental Postgraduate Students on Non-restorative Cavity Control Technique: A Cross-sectional Study. Int J Clin Pediatr Dent 2021;14(2):217-221.
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http://dx.doi.org/10.5005/jp-journals-10005-1908DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8343691PMC
August 2021

Adsorptive removal of noxious atrazine using graphene oxide nanosheets: Insights to process optimization, equilibrium, kinetics, and density functional theory calculations.

Environ Res 2021 09 6;200:111428. Epub 2021 Jun 6.

Department of Chemical Engineering, Khalifa University, P.O. Box 127788, Abu Dhabi, United Arab Emirates.

Atrazine is a toxic herbicide whose alarming rate of contamination in the drinking water and wastewater poses a severe threat to the environment and human health. Here in this study, the graphene oxide (GO) nanosheets were prepared using Hummers' method with minor modification and studied as a potential adsorbent for atrazine removal from simulated wastewater. The spectroscopy and microscopic analysis confirmed the successful formation of GO with a multilayer structure resembling the crumpled sheets with random stacking. The Response Surface Methodology (RSM) employing Box Behnken design (BBD) was successfully developed to predict the optimal conditions for maximal atrazine removal as adsorbent dosage 121.45 mg/L; initial feed concentration 27.03 mg/L; temperature 27.69 °C, pH 5.37, and time 180 min. The atrazine adsorption onto GO was found to be higher in acidic pH and lower temperature. Density functional theory (DFT) calculation of adsorbent-adsorbate complex in the implicit solvent medium suggests adsorption affinity energy of -24.4 kcal/mol for atrazine. A careful observation of the molecules configuration and binding energy showed that the π-π interactions and hydrogen bonds played a significant role in the adsorption phenomena. Langmuir isotherm suited well to the adsorption process with a maximum adsorption capacity of 138.19 mg/g, at 318 K. The fitness of kinetic models for atrazine adsorption onto GO nanosheets were in following order Ho < Sobkowsk-Czerwi < Avrami model based on their correlation coefficient (R) values. Reusability analysis showed that GO nanosheets could be effectively recycled using 0.01 N NaOH up to six cycles of atrazine removal. Thus, this study provided a theoretical and experimental basis for the potential application of GO nanosheets as a novel adsorbent for the removal of hazardous atrazine.
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http://dx.doi.org/10.1016/j.envres.2021.111428DOI Listing
September 2021

Erratum: Crystal structure and Hirshfeld surface analysis of 2-(1-indol-3-yl)ethanaminium acetate hemihydrate. Corrigendum.

Acta Crystallogr E Crystallogr Commun 2020 Oct 30;76(Pt 10):1700. Epub 2020 Sep 30.

Department of Chemistry, Government Arts College (Affiliated to Bharathidasan University), Thanthonimalai, Karur 639 005, Tamil Nadu, India.

[This corrects the article DOI: 10.1107/S2056989019003347.].
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http://dx.doi.org/10.1107/S2056989020012815DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7534231PMC
October 2020

Crystallographic, spectral and computational studies on (S)-4-(4-aminobenzyl) oxazolidin-2-one.

Spectrochim Acta A Mol Biomol Spectrosc 2020 Oct 19;239:118484. Epub 2020 May 19.

Department of Chemistry, Periyar Maniammai Institute of Science & Technology, Vallam, Thanjavur, Tamilnadu, India. Electronic address:

The experimental geometry (XRD), vibrational (IR and Raman), electronic (UV-visible) and NMR spectra of (S)-4-(4-Amino-benzyl)-oxazolidin-2-one (ABO) have been corroborated with the corresponding first principle calculated values at DFT using hybrid B3LYP exchange correlation functional invoking 6-311++g(d, p) basis set. The optimized geometrical parameters were found to be in satisfactory agreement with the experimental values obtained from the X-ray diffraction structural features of ABO. The scaled down computed vibrational frequencies with appropriate scaling factors were in good correspondence with the experimental observations. Room-temperature H and C nuclear magnetic resonance (NMR) studies were supported by advanced density functional theory calculations. The theoretical spectrograms of FT-IR, FT-Raman, H NMR, C NMR and UV of the title compound have been constructed and compared with experimental spectra and Hirshfeld surface analysis has also been made to study the intermolecular interactions. The electronic structure of the title compound has also been studied in terms of HOMO, LUMO and MESP diagrams.
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http://dx.doi.org/10.1016/j.saa.2020.118484DOI Listing
October 2020
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