Outcome Analysis of Continuous Versus Interrupted Sutures for Adult Circumcision at a Tertiary Care Centre, Tamil Nadu, India

Introduction: Circumcision is the most common reconstructive urological procedure all over the world with minimal complications. It comprises of surgical removal of the prepuceal skin from the penis. Bleeding and infection are the major complications associated with traditional interrupted sutured circumcision. Hence continuous suturing techniques were explored to replace the traditional interrupted absorbable sutures. Aim: To compare the outcome of continuous and interrupted absorbable suturing techniques for adult circumcision. Materials and Methods: This retrospective study was conducted at PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India, in 250 adult patients undergoing circumcision between January 2018 and December 2020 in a Tertiary Care Hospital in Southern India. Among the 250 adult patients, 125 patients underwent circumcision with continuous absorbable suturing techniques (group I) and 125 patients with interrupted absorbable suturing technique (group II). Comparative outcome analysis of both the groups was done based upon the following parametersbleeding, infection, surgical wound dehiscence, swelling in the phallus, Visual Analog Score (VAS) for pain assessment, readmission to the hospital, and cosmesis. The comparison of quantitative variables between the groups was done using chi-square test. Results: In total, 250 adult patients were included in this study. The age was 44.3±14.3 years in continuous suture and 43.4±13.6 years in interrupted suture group. Balanitis with phimosis was the commonest indication for adult circumcision. The mean time taken for circumcision in group I and II was 14 minutes and 45 minutes, respectively. The average healing period was six days in group I and 13 days in group II. No major urological complications were observed in both the groups which might have required re admission. But fewer postoperative complications were encountered in group I with respect to wound infection (p-value=0.0002) and suture granuloma (p-value=0.02). Conclusion: The present study demonstrated better postoperative outcomes, reduced surgical time, reduced suture material requirement, and better cosmesis in adult circumcision using continuous absorbable suturing technique compared to the traditional interrupted techniqu

Effect of a-picoline and quinoline on dc and pulse plating of nickel directly on aluminium

Nickel electrodeposits were formed directly on to AA 1100 aluminium alloy using a simple chemical pretreatment both by direct current plating (DCP) and pulsed current deposition (PCD) methods in the absence and presence of a-picoline and quinoline. In dc plating the current density was varied between 1 and 4 A dm22. In pulse plating, the current density was varied between 1 and 4 A dm22 and the duty cycle was varied between 10 and 80% at the frequency of 100 Hz. The throwing power and current efficiency of the bath were determined. The influence of current density, duty cycle, a-picoline and quinoline on throwing power and current efficiency of the bath during direct and pulse current plating have also been studied

An automated software development for analysis of the morphological-tensile property relationship in egg shell bio-based particulate composites using machine learning algorithms

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC-BY license: https://creativecommons.org/licenses/by/4.0/This work explored the importance of quantitative observation through imaging methods of optical and electron microscopies on the mechanical properties of particulate polymeric composites. Egg shell powder (ESP) reinforced polypropylene carbonate (PPC) polymeric composites with different filler weight percentage (wt.%) from 1 to 5 wt.% were considered. A cost-effective Image Analysis Software (IAS) was developed to extract black particles from the original optical images. During this process, the optimal image can be reproduced based on its originality by controlling the threshold values from 0.1 to 0.6 in real time situation. Using one-dimensional (1D) Gaussian distribution analysis, the authentication of the particle distribution data was studied and linked to the tensile strength of the composites. The mean value of the particle area collected from the left and right side of the scattered curves has a significant effect on the tensile strength of the composites. The proposed model was validated by comparing the predicted statistical results with the measured tensile strength for different wt.% of ESP composites. From the results obtained, a close agreement of 99% accuracy was observed between the experimental results and the proposed model for the tensile strength of the composites. The innovative study provides more practical and quantitative knowledge on improved particulate polymeric composites, in addition to the detection of failure processes through optical/electron microscopic examination of images. Evidently, the proposed cost effective, accurate and less stressful model can be employed by several composite-based industries to correlate the tensile strengths of particulate polymeric composites with their morphological properties.Peer reviewe

Extraction and characterization of natural cellulosic Erythrina variegata fiber for biocomposites

© 2022 Taylor & Francis. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.1080/15440478.2022.2073502This paper presents a study on extraction and characterization of the cellulose fiber from the bark of Erythrina variegate (EV) plant. Several tests were carried out on Erythrina variegata fibers (EVFs) to determine their properties. These included thermogravimetric analysis (TGA)/difference thermogravimetric (DTG), X-ray diffraction (XRD) analysis, Fourier transform infrared spectroscopy (FTIR) as well as morphological analysis, using scanning electron microscopy (SEM) and atomic force microscopy (AFM). From the results obtained, chemical composition of EVFs, such as cellulose, lignin, ash, and wax content of 70.60, 12.70, 8.60, and 0.24 wt.%, respectively, were recorded through standard chemical analysis. The maximum and average tensile strength of the EVFs were found as 6.06 ± 0.02MPa and 2.80 MPa, respectively. The thermogravimetric analysis on the fiber showed excellent stability with a char residue of 19.23% and a maximum degradation temperature of 349°C. The crystallinity index (CI) of 37.5% and crystalline size of 36.93 nm of EVFs were calculated through X-ray diffraction analysis. The morphological study established that EVFs possessed rough surface even in raw form. The density of EVF was obtained at 1412 kg/m 3, which was higher than that of Grewia damine of 1378 kg/m 3 and lower than that of jute of 1460 kg/m 3.Peer reviewe