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Clas.ification and detection of dental images using meta-learning

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World Journal of Clinical Cases 2024年第32期12卷 6559-6562页

作者： Pradeep Kumar Yadalam raghavendra Vamsi Anegundi Mario Alberto Alarcón-sánchez Artak Heboyan Department of Periodontics Saveetha Dental College and HospitalSaveetha Institute of Medical and Technical SciencesSaveetha UniversityChennai 600077Tamil NaduIndia south Pacific Dental ins.itute Chilpancingo de los Bravo 39022GuerreroMexico Department of Prosthodontics Faculty of StomatologyYerevan State Medical University after Mkhitar HeratsiYerevan 0025Armenia

Meta-learning of dental X-rays.is a machine learning technique that can be used to train models to perform new tasks quickly and with minimal *** of just memorizing a task,this.is accomplished through teaching a model how to *** for meta-learning are typically trained on a collection of training problems,each of which has a limited number of labelled *** Xray clas.ification tasks.including the detection of pneumonia,coronavirus disease 2019,and other disorders,have demonstrated the effectiveness of ***-learning has the benefit of allowing models to be trained on dental X-ray datasets that are too few for more conventional machine learning *** to the high cost and lengthy collection process associated with dental imaging datasets,this.is significant for dental X-ray clas.ification *** ability to train models that are more resistant to fresh input is another benefit of meta-learning.

关键词： Artificial intelligence Meta-learning Dental diagnosis image segmentation Medical image interpretation Dental radiography

study of ZnO nanoparticle-supported clay minerals for electrochemical sensors,photocatalysis,and antioxidant applications

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ChemPhysMater 2024年第1期3卷 83-93页

作者： Mylarappa M N.raghavendra N.R.Bhumika C.H.Chaithra B.N.Nagalaxmi K.N.shravana Kumara Department of Chemistry Sri Jagadguru Renukacharya College of ScienceArts&CommerceBengaluru 560009India Department of Chemistry East West Institute of TechnologyBengaluru 560091India Department of Chemistry Maharani Lakshmi Ammanni College for WomenBengaluru 560012India

in view of the current study’s demonstration of the synthesis of clay-doped ZnO composites,we present a low-cost method for producing clay-metal oxide(clay/ZnO).Utilizing the solution combus.ion technique,a composite of clay/ZnO was produced utilizing citric acid as both a fuel and a complexing *** hexagonal unit cell structure of the created clay/ZnO may be seen using XRD *** ZnO-infused clay was visible in FE-sEM micrographs as homogenous,sphere-shaped *** pos.ible involvement of clay/ZnO photocatalytic activity in the UV-induced photodegradation of malachite green dye was *** 90%degradation rate shows the composite’s outstanding photocatalytic degradation *** resulting substance was electrochemically analyzed using a constructed electrode in 0.1 M KOH *** increased its sensor capabilities,which now include chemical and biomolecule sensors,and it excelled in cyclic voltammetry-based redox potential *** efficiently evaluate chemically synthesized NPs for electrochemical,sensing,and photocatalytic applications,this study intends to create a solution combus.ion procedure for the synthesis of clay/ZnO nanocomposite using urea as fuel.

关键词： Clay Clay/ZnO Photocatalytic Electrochemical sensors

Kiran Nandivada’s stuck Blade in a Grinder Jar Degenerative Cascade by LsTV at L5-s1

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Open Journal of Orthopedics 2024年第1期14卷 12-21页

作者： Venkata satya Kumar Kiran Nandivada Nadavinamani s.ivanand raghavendra Nandivada Nikhil Bharadwaja Moola sohith Mahadeva Reddy Ahmed Usama Rizvi Nandivada Ortho s.ine surgeon & Rheumatologist Abu Dhabi United Arab Emirates senior Orthopedic surgeon & Rheumatologist Abu Dhabi United Arab Emirates General Practitioner Visakhapatnam India Department of Medicine Kamineni Institute of Medical Sciences Telangana India Department of Medicine Tbilisi State Medical University Tbilisi Georgia

Background: Mario Bertolotti, (1917) described LsTV-Lumbar s.inal transitional vertebra as Bertolotti syndrome a century ago and associated low back pain with it. Yet, it needs to be given significance in general orthopaedic practice even now, and radiologists underreport it. LsTV is a congenital anatomical anomaly that Castellvi clas.ified into four varying types. Purpose: i titled this phenomenon “Kiran Nandivada’s stuck blade in a grinder jar degenerative cascade by LsTV at L5-s1” to clearly explain how an abnormal mega-transverse apophysis with its various variations affects the weight-bearing mechanics as the L5-s1 which is a vital junction where the maximum body weight is directed into both the sacroiliac joints and if a transitional vertebra occurs.it becomes detrimental and abnormally redirects the load-bearing forces and leads to a progres.ive degenerative cascade both proximally and distally. As the L5 vertebral rotations and other movements of flexion, extensions, lateral flexion are stuck like a bent grinder blade, the other areas of the region are damaged progres.ively as the pelvis, just like the grinder motor tries to move it, resulting in overheating and maybe even a burnout results.in the form of facet arthritis, disc degeneration in the normal disc above, the transitional disc at L5-s1, foraminal osteophytes causing radiculopathy, sacroiliac joint arthritis. Material and Methods: Around 200 X-rays of children and adults with this congenital anomaly have been studied between 2020 and 2023. This.is a retrospective study. Results: 1) Our study showed an increased incidence of LsTV at 15%. 2) Patients ranged from asymptomatic, atypical lumbago to clas.ical lumbago with s.iatica and claudication. Findings supported facet and sacroiliac joint arthritis and the pain, relieved with physiotherapy, posture corrections, weight reduction, and lifestyle precautions, negating the need for local steroid injections, radiofrequency ablation or surgical excision as

关键词： LsTV Bertolotti syndrome Transitional Vertebra Facet Tropism Congenital Dysplasia

Various Aetiologies of Non-Traumatic Coccydynia Cause Pain in the Posterior sacrococcygeal Leg of the Pelvic Tripod: A Burden on the Healthcare sector

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Open Journal of Orthopedics 2024年第7期14卷 334-353页

作者： Kumar satya Nandivada Venkata Kiran Nadavinamani s.ivanand raghavendra Oommen Elsy Biju Bharadwaja Nikhil Nandivada Nandivada Vaishnavi Rizvi Usama Ahmed Krus.i Orthopaedic Welfare society Research Wing Visakhapatnam India

introduction: Coccydynia, television disease, and coccygodynia are the different names given to this disabling disease, which can become chronic. it was described by simson in 1859. Coccydynia means pain at the end of the vertebral column. Non-traumatic coccydynia is a diagnosis, which is never straightforward like traumatic coccydynia because the onset is unclear, and both the patient and the unaware clinician face many challenges.in treating it on time and with accuracy. Coccyx was likened to a cuckoo bird’s beak as a curved bone of fused 3 to 5 vertebrae with remnant disc material in some rare cases, unfused segments, linear scoliosis or subluxations and deformities. stress X-rays of the coccyx in the antero-posterior and lateral views.in standing and sitting reveal the “Dynamic instability” due to congenital coccygeal morphological, pathological and mechanical variations. Material and Methods: This.is a complex study having retrograde data collected from online publications from various databases, like PubMed, Embase, and Cochrane Library and also antegrade data collected from 100 patients with their consent from patients.in Adam and Eve specialised Medical Centre-based at Abu Dhabi, UAE and data was processed in the research centre of Krus.i Orthopaedic Welfare society based in india between 2014-2024 following all guidelines of Helsinki and approved by the ethics board of Krus.i Orthopaedic Welfare society. Clinical Presentation: The coccyx is painful, with aches, spasms, and an inability to sit. This affects daily activities without any particular date of onset. The onset remains.insidious for the non-traumatic variety of coccydynia. Aetiology and Patho Anatomy: Non-traumatic coccydynia can be caused by a myriad of reasons, like congenital morphological variations, acquired dynamic instabilities, and hidden trauma remaining quiescent to re-surface as a strain-induced pain. Radiological Presentations: Unless clarity is focused on these coccygeal views, the err

关键词： Coccydynia Coccygodynia Pelvic Floor Chordoma Pilonidal sinus Fused sacrococcygeal segment Non-Traumatic Coccydynia Entrapment of Coccygeal Nerves Dural syndrome

Non-invasive real-time assessment of hepatic macrovesicular steatosis.in liver donors:Hypothesis,design and proof-of-concept study

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World Journal of Hepatology 2021年第10期13卷 1208-1214页

作者： Allwyn s Rajamani Ashwin Rammohan vv raghavendra s.i Mohamed Rela Department of Applied Mechanics Indian Institute of Technology MadrasChennai 600036India ins.itute of Liver Disease and Transplantation Dr.Rela Institute and Medical CentreBharath Institute of Higher Education and ResearchChennai 600044India

Macrovesicular steatosis(Ms.is an independent risk factor for adverse post-liver transplant(LT)*** degree of Ms.is.intimately related to the viability of the liver graft,which in turn is crucial to the success of the *** ideal liver graft should have no Ms and most centres would find it unacceptable to use a donor liver with severe Ms for *** a formal liver biopsy is the goldstandard diagnos.ic test for Ms,given the logis.ical and time constraints.it is not universally *** tests like a frozen section biopsy are plagued by issues of fallibility with reporting and sampling bias making them inferior to a liver ***,the development of an accurate,non-invasive,easy-to-use,handheld,real-time device for quantification of Ms would fill this lacuna in the deceased donor selection *** present the hypothesis,design and proof-ofconcept of a study,which aims to standardise and determine the feasibility and accuracy of a novel handheld device applying the principle of diffuse reflectance spectroscopy for real-time quantification of Ms.

关键词： Macrovesicular steatosis Deceased donors Liver transplantation Real-time devices Diffuse reflectance spectroscopy

塞拉鲁替尼治疗成人动脉性肺动脉高压(TORREY):一项随机、双盲、安慰剂对照2期试验

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中华结核和呼吸杂志 2024年第9期47卷 895-895页

作者： Frantz RP McLaughlin vv sahay s 陈日垦姚卫民不详广东医科大学附属第二医院呼吸与危重症医学科广州524003

背景:动脉性肺动脉高压(PAH)的发病率和病死率仍然很高。血小板源性生长因子受体、集落刺激因子1受体和肥大细胞或干细胞生长因子受体激酶的激活会刺激炎症、增殖和纤维化途径,从而驱动PAH中的肺血管重塑。塞拉鲁替尼(seralutinib)是一... 详细信息

背景:动脉性肺动脉高压(PAH)的发病率和病死率仍然很高。血小板源性生长因子受体、集落刺激因子1受体和肥大细胞或干细胞生长因子受体激酶的激活会刺激炎症、增殖和纤维化途径,从而驱动PAH中的肺血管重塑。塞拉鲁替尼(seralutinib)是一种吸入性激酶抑制剂,针对这些途径。该研究的目的是评估塞拉替尼对接受标准背景治疗的PAH患者的疗效和安全性。方法:TORREY试验是一项2期、随机、多中心、跨国、双盲、安慰剂对照研究。来自40家医院和社区站点的PAH患者通过交互式响应技术以1∶1的比例随机分配接受塞拉鲁替尼(60 mg,2次/d,持续2周,然后根据耐受性增加至90 mg,2次/d),或通过干粉吸入器每天两次接受安慰剂,持续治疗24周。根据基线肺血管阻力(PVRs^(-1)·cm^(-5)和≥800 dyn·s^(-1)·cm^(-5))对随机分组进行分层。如果患者被归类为WHO第1组PH(PAH)、WHO功能等级Ⅱ或Ⅲ,且PVR为400 dyn·s^(-1)·cm^(-5)或以上,6 min步行距离在150~550 m之间,则患者符合入组资格。

关键词：安慰剂对照肺血管阻力干细胞生长因子动脉性激酶抑制剂肺血管重塑肺动脉高压肥大细胞

Effect of confined one-gluon-exchange potential and instanton-induced interaction on nucleon–nucleon interaction

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Communications.in Theoretical Physics 2020年第6期72卷 83-88页

作者： s raghavendra C Vanamali shastry V K Nilakanthan K B Vijaya Kumar Department of Physics Mangalore UniversityMangalagangotri 574199India Department of Post-Graduate studies.in Physics SDM CollegeUjire 574240India Department of Education in s.ience and Mathematics Regional Institute of Education MysoreMysuru 570006India Department of Post Graduate studies.in Physics St.Aloysius College(Autonomous)Mangalore 575003India

The effect of confined one-gluon-exchange potential and instanton-induced interaction potential in the singlet(1s0)and triplet(3s1)channels for nucleon–nucleon interaction has been inves.igated in the framework of the relativis.ic harmonic model using the resonating group method in the adiabatic limit with the Born–Oppenheimer *** contributions of the different components of the interaction potentials have been analyzed.

关键词： nucleon–nucleon interaction relativis.ic harmonic model instanton-induced interaction resonating group method confined one-gluon-exchange

Mango internal defect detection based on optimal wavelength selection method using NiR spectroscopy

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Artificial intelligence in Agriculture 2021年第1期5卷 43-51页

作者： Anitha raghavendra D.s.Guru Mahesh K.Rao Maharaja Research Foundation Maharaja Institute of TechnologyMysoreIndia Department of studies.in Computer s.ience University of MysoreMysoreIndia

A non-destructive technique should be developed for performance analysis of mango fruits because the spongy tissue or internal defects could lower the quality of mango fruit and incur a lack of *** this study,wavelength selection methods were proposed to identify the range of wavelengths for the clas.ification of defected and healthy mango *** selection methods were adopted here to achieve a significant selection of *** measure the goodness of themodel,the datasetwas collected using the NiR(Near infrared)spectroscopy with wavelength ranging from 673 nm–1900 *** clas.ification was performed using Euclidean distance measure both in the original feature space and in FLD(Fisher's Linear Discriminant)transformed *** experimental results showed that the lower range wavelength(673 nm–1100 nm)was the efficient wavelength for the detection of internal defects.in *** to express the effectiveness of the model,different feature selection techniques were inves.igated and found that the Fisher's criterion based technique appeared to be the best method for effective wavelength selection useful for clas.ification of defected and healthy mango *** optimal wavelengths were found in the range of 702.72 nm to 752.34 nm using Fisher's criterionwith a clas.ification accuracy of 84.5%.This study showed that NiR systemis a useful technology for the automaticmango fruit assessmentwhich has the potential to be used for internal defects.in online sorting,easily dis.inguishable by those who do not meet minimum quality requirements.

关键词： Feature selection methods Fisher's linear discriminant analysis Mango internal defect detection NiR(near infrared spectroscopy)

An intelligent scheme for slot Reservation in Vehicular Ad Hoc Networks

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China Communications 2021年第7期18卷 223-235页

作者： surjeet Priyanka Bhardwaj raghavendra Pal Nishu Gupta Department of Electronics and Communication Engineering Bharati Vidyapeeth’s College of EngineeringNew DelhiIndia Department of Electronics and Communication Engineering ABES Engineering CollegeGhaziabadIndia Department of Electronics Engineering Sardar Vallabhbhai National Institute of TechnologySuratIndia Department of Electronics and Communication Engineering Chandigarh UniversityMohaliIndia

Vehicular ad hoc network is a solution for increasing road traffic ***-safety messages are sent during the service channel *** slots during which the messages are sent are not decided prior to the *** the reservation of slots.is done during the control channel interval,then the non-safety messages can be trans.itted without any collision and thus the network performance can be ***,to improve the network performance,the safety packets can be scheduled in the queue according to the time remaining for which sender and receiver are in the range of each *** work proposes and evaluates the performance of safety message scheduling and infotainment message reservation through a MAC protocol s.iR-MAC to ensure network stability by trans.itting beacons without any *** safety messages are queued according to their deadline and the slots for the trans.is.ion of non-safety packets are reserved during the control channel ***,a hybrid queue is proposed to decrease the delay of enqueue and dequeue *** through extensive simulation results demonstrates the strength of *** are made with iEEE 802.11p standard and with two exis.ing protocols which are relevant to the proposed work.

关键词： channel s.itching DsRC iEEE 802.11p iTs MAC safety scheduling VANET