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Papers by khusboo kumari

JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH

Introduction: Anthropometry is an essential technique to understand the variations in the human b... more Introduction: Anthropometry is an essential technique to understand the variations in the human body that is implicated during various reconstructive surgical procedures, and for the identification of individual during crime scene in forensics. Analysis of ear morphology plays a role in understanding the sexual dimorphism and stature in the human population. It has been found that the ear morphology changes from one region to another. Aim: To study the morphometric parameters of the ear for stature estimation, and to identify sexual dimorphism in north Indian population. Materials and Methods: This cross-sectional study of 200 subjects (100 males and 100 females) aged 17-25 years was conducted in the Department of Anatomy, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India. The study participants were selected from the MBBS, BDS and Nursing undergraduates studying in Banaras Hindu University (BHU). The various aspects of ear morphology (ear lengt...

JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH, 2021

Introduction: Competitive swimming is one of the popular sports, where physical conditioning and ... more Introduction: Competitive swimming is one of the popular sports, where physical conditioning and skill have a large contribution in achieving high-level performances. In males, the second to fourth digit ratio (2D:4D) have lower values than females but the mean digit ratio remains the same with age. This ratio is considered to be a biomarker of the balance between Foetal Testosterone (FT) and Foetal Oestrogen in a nearly embryonic stage. Aim: To determine the correlation of 2D:4D ratio in swimming beginners. Materials and Methods: This cross-sectional pilot study was conducted in the swimming pool facility of Banaras Hindu University Varanasi, Uttar Pradesh, India from March 2019 to June 2019. A total of 118 (59 females and 59 males), swimming beginners participants having age between 18 to 27 years were selected and cross-sectional samples were taken for the study. Participants passed all the stages of swimming learning under a well-trained coach for six weeks. In the last week of ...

Journal of International Society of Preventive & Community Dentistry, 2021

Aim: Oral squamous cell carcinoma (OSCC) may be preceded by potentially malignant disorders such ... more Aim: Oral squamous cell carcinoma (OSCC) may be preceded by potentially malignant disorders such as oral submucous fibrosis (OSMF). p63 can detect genetic changes in OSMF and it facilitates early detection of malignant transformation, whereas proliferating cell nuclear antigen (PCNA) is a marker of proliferation and may prove to be a useful objective indicator of the biological behavior of various tumors. The aim of this study was to investigate the expression and pattern of the intensity of p63 protein and PCNA in normal oral mucosa and OSMF using immunohistochemistry (IHC) and to correlate the expression of these biomarkers. Materials and Methods: A total of 15 archival paraffin-embedded blocks obtained from our department, which were histopathologically diagnosed early OSMF (n = 4), intermediate OSMF (n = 4), and advanced OSMF (n = 2) and normal mucosa (n = 5), were taken as the standard for comparison. p63 and PCNA positivity was analyzed using Kruskall-Wallis test followed by p...

Obesity is a globally affected lifestyle and multi factorial disorder, that is usually related to... more Obesity is a globally affected lifestyle and multi factorial disorder, that is usually related to many other significant diseases like diabetes, hypertension, cardiovascular diseases, osteoarthritis and certain cancers. One in three people has been suffering from obesity all over the world (Global nutrition report 2020). The management of obesity with its comorbidities will therefore require a comprehensive range of strategies that specialize in those with existing overweight problems and also at high risk of developing obesity. Different literature reviewsare considered regarding different approaches as prescribed drugs, bariatric surgery,etc., for weight loss, have their certain side-effectsexcept for dietary approaches. Hence, in this study,prevention of obesity by nutrients intake and timing interplay with a proper dietary approach will be considered in priority, as it is a risk of persistence to all age-group populations. This article highlights various preventive aspects, factor influence and treatment procedures of obesity with special emphasis on the recent research manifolds.

Forensic applications of nanotechnology go beyond using nanoparticles. A classic tool of nanotech... more Forensic applications of nanotechnology go beyond using nanoparticles. A classic tool of nanotechnology labs, the Atomic Force Microscope (AFM), could help with the paper message found in the crime scene described at the beginning of this article. This device allows details of a surface at the nano-scale level to be seen. It measures the forces exerted among a microscopic sharp tip and the atoms of the surface. This procedure can be used to examine ink crossings and determine which of two lines has been written over the other. This information could prove crucial in understanding certain documents, such as a contract with a contentious amendment. Because of applying knowledge and techniques from natural science, forensic science aims to identify, individualize and evaluate evidence. Evidence will then be used to reconstruct crime scenes, guide investigations and bring criminals to justice. Nanotechnology has been applied towards these purposes. Among the various nanotechnologies, na...

IP International Journal of Ocular Oncology and Oculoplasty, 2020

Ocular trauma being common reason for visual morbidity. This study helps to know the different mo... more Ocular trauma being common reason for visual morbidity. This study helps to know the different mode of traumatic cataract and their visual outcome. Materials and Methods: A hospital based prospective study done in Department of ophthalmology of a medical college 30 cases of traumatic cataract excluding complicated cataract, congenital cataract etc. underwent detailed history and local examination with investigations. Data was analysed with regard to relationship between mode of trauma and final visual outcome achieved with surgical technique. Patients were followed-up at 1 week, 1 and 6 months and visual acuity was recorded. Results: A 56.6 % sustained penetrating trauma while 43.2% got blunt trauma. In blunt trauma postoperative cases BCVA was 6/18-6/12 and penetrating trauma cases 6/60-6/18. A 35.2% patients had corneal opacity among penetrating injury which was most common cause for reduced visual acuity. Conclusion: This study provides data of different mode of Traumatic cataract and visual outcome depends on the type of injury and its presentation.

Sādhanā, 2019

In this article, a method of analysing features of elliptical regions and combining outcomes of c... more In this article, a method of analysing features of elliptical regions and combining outcomes of classifiers using Dempster-Shafer Theory (DST) is presented to classify online handwritten text and non-text data of any online handwritten document in the most popular Indic script-Devanagari. Although a few works exist in this regard in different non-Indic scripts, to our knowledge, no study is available to classify handwritten text and non-text document in online mode in any Indic script. The present method uses various structural and directional features analysed in elliptical regions to extract feature values from strokes of text and non-text data. The features are then studied separately in classification platforms based on Support Vector Machine (SVM) and Hidden Markov Model (HMM). The probabilistic outcomes of these two classification platforms are then combined using DST to improve the system performance. The efficiency of the present system has been measured on a self-generated dataset and it provides promising result.

International Journal of Electronics Letters, 2018

ABSTRACT This article presents an investigation on the design of polarisation-independent dual-ba... more ABSTRACT This article presents an investigation on the design of polarisation-independent dual-band ultra-thin metamaterial absorber for X-band applications. The proposed unit cell is the combination of two resonators named as Resonator-I and Resonator-II. Both the resonators are designed on the top of FR4 epoxy dielectric substrate with completely metal laminated on the bottom side. The designed absorber structure offers a great amount of miniaturisation with a footprint area of 0.17λ0 × 0.17λ0 × 0.017λ0; here, λ0 is the free space wavelength with respect to lowest absorption peak. The proposed absorber structure shows two absorption peaks of 99.76% and 95.85% with FWHM (Full Width at Half Maximum) bandwidth of 340 MHz (8.34–8.68 GHz) and 540 MHz (9.76–10.30 GHz) at the frequencies of 8.51 and 10.03 GHz, respectively. Further, the absorptivity of the designed structure has been investigated under distinct oblique and polarisation incidence angles. In order to explain the mechanism of absorption of the proposed absorber structure, electric field distribution, surface current distribution and input impedance plot have been studied. The fabrication and measurement for designed absorber structure have been carried out to verify the simulation results. The designed absorber structure can be suitably used for defence-related ultrathin applications.

International Journal of Microwave and Wireless Technologies, 2018

In this paper, a compact metamaterial inspired ultra-thin polarization independent quad-band micr... more In this paper, a compact metamaterial inspired ultra-thin polarization independent quad-band microwave absorber for electromagnetic interference (EMI)/ electromagnetic compatibility (EMC) applications have been discussed. The proposed absorber structure offers four different absorption peaks having absorptivity of 97.02, 94.07, 91.72, and 98.20% at 3.40, 8.23, 9.89, and 11.80 GHz, respectively. Due to the four-fold symmetry of the designed unit cell, the proposed absorber structure shows polarization independent behavior. In addition to above, the absorption curve for the designed structure has been also analyzed under different angles of incidence for both transverse electric and transverse magnetic polarization states. In order to confirm the metamaterial behavior of the proposed absorber unit cell, dispersion plot has been studied. Further, input impedance plot, electric field, and surface current distribution plot have been discussed to explain the absorption mechanism of the pr...

IEEE Access, 2017

This article claims, an investigation on compact ultrathin triple band polarization independent m... more This article claims, an investigation on compact ultrathin triple band polarization independent metamaterial absorber for microwave frequency applications. The proposed absorber unit cell consist of two resonators named as Structure-A and Structure-B. Both the resonators are printed on the upper surface of dual side copper coated FR-4 epoxy glass substrate of thickness 0.8 mm. The proposed absorber structure offers three distinct absorption peaks of 99.67%, 99.48%, and 99.42% with FWHM bandwidth of 170 MHz (4.11-4.28 GHz), 350 MHz (9.17-9.52 GHz), and 480 MHz (11.24-11.72 GHz) at 4.19 GHz, 9.34 GHz, and 11.48 GHz, respectively, under normal incidence. In addition to above, the four fold symmetry of proposed absorber structure make it polarization independent. Proposed absorber structure also offers more than 80% absorptivity at different angle of incidence (up to 60 •) under transvers electric and transvers magnetic polarization states. The designed absorber unit cell has compactness of 0.11 λ 0 × 0.11 λ 0 with ultra-thin thickness of 0.0111 λ 0 , where λ 0 is the free space wavelength with respect to the lowest absorption peak of 4.19 GHz. Absorption mechanism of proposed unit cell has been discussed with the help of normalized input impedance, electric field distribution, and surface current density plots. In order to discuss the metamaterial property of proposed absorber unit cell dispersion diagram has been shown. INDEX TERMS Metamaterial, triple band absorber, polarization independent, ultra-thin.

Microwave and Optical Technology Letters, 2017

and good roll off in this article. Measurement is done in microwave test bench, as shown in Figur... more and good roll off in this article. Measurement is done in microwave test bench, as shown in Figure 9. Aluminum foil paper is used as metal. Fabrication is done by laser cutting machine. In measurement setup, FSS is placed between a transmitting and a receiving horn antenna. R&S made vector network analyzer (VNA) (ZNB20) is connected with the transmitting horn antenna to generate microwave signal. Received power is measured by a power sensor which is displayed in VNA. To maintain a stable structure of doublelayer FSS, polythene foam is used as stand. Plastic pins and piece of papers are used to form double-layer structure by keeping 2 mm gap between two single-layer curved FSSs. Maintaining 10 mm gap, polythene foam with the same width is used between two layers of curved FSS, which is shown in Figure 11. Simulated and experimental results for aperturetype curved double-layer FSSs are shown in Figures 10 and 12, respectively, which are in good agreement. A good bandwidth and sharp roll off are achieved for planar and curved FSS also. In case of curved double-layer FSS with 2 mm gap, higher roll off factor is achieved; that is, 66 dB/GHz than single-layer curved FSS. 8 Also, a very good transmission band is obtained in double-layer curved FSS.

Progress In Electromagnetics Research C, 2017

This paper presents a wide-angle polarization independent triple-band absorber based on a metamat... more This paper presents a wide-angle polarization independent triple-band absorber based on a metamaterial structure for microwave frequency applications. The designed absorber structure is the combination of two resonators (resonator-I and resonator-II). The proposed absorber is ultrathin in thickness (0.012λ o at lowest resonance frequency and 0.027λ o at highest resonance frequency). The proposed absorber structure offers three absorption bands with peak absorptivities of 99.95%,