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Development, and validation of non-speech dichotic listening test

Journal of Otology 2023年第1期18卷 63-69页

作者： Hari Prakash Palaniswamy Mayur Bhat Rajashree Ganesh Bhat y.krishna B.Rajashekhar Dept of Speech and Hearing Manipal College of Health Professions Manipal Academy of Higher EducationManipalIndia Dept of Audiology and Speech Language Pathology Kasturba Medical CollegeMangaloreManipal Academy of Higher EducationManipalIndia Speech and Hearing Unit College of Applied Medical ScienceKing Khalid UniversityAbha62529Saudi Arabia

Background:Classic dichotic listening tests using speech stimuli result in right ear advantage,due to the dominant crossed pathway for speech and *** is presumed that similar crossed dominance could exist for non-speech stimuli ***,this is an attempt to develop and validate the dichotic nonspeech test using environmental stimuli and explore the effect of focused attention on this *** and method:Three lists of dichotic stimuli were created using these sounds with fifteen tokens in each *** professionals and non-professionals validated these *** estimation was obtained by administering the newly developed test on 70 adults and 70 children using a free-recall and forced-recall ***:The results showed a significant difference between the left ear and right scores where the left ear score was better than the right,depicting left ear advantage(LEA)for free recall condition in both *** the forced recall condition,LEA was not seen;rather the mean score was significantly higher in the attended ear,irrespective of the stimuli presented to the right or left *** test-retest reliability in free recall was good in both the ears and moderate for forced right ear ***:The novel test consistently showed LEA with good reliability and can be used to assess the hemispheric asymmetry in normal subjects and also in test batteries for the clinical population.

关键词： Dichotic listening test Cerebral dominance Hemispheric specialization Right cerebral hemisphere Left cerebral hemisphere

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Relevance of epidemiology data in trauma management

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World Journal of Clinical Cases 2025年第9期13卷 65-67页

作者： krishna Kumar Govindarajan Department of Pediatric Surgery Jawaharlal Institute of Postgraduate Medical Education and ResearchPuducherry 605006India

Trauma is a major cause of morbidity and mortality across the globe accounting for significant health *** of trauma care revolves round prevention,planning and execution of safety *** of the actual data regarding the type of trauma,affected age group,timings of trauma occurrence,involved part of the body constitute the initial steps in the building of the composite overview of the epidemiology of *** succession,would be the measures directed towards avoidance of trauma and capacity building of trauma center.

关键词： Trauma Epidemiology Injury Prevention Triage Registry Artificial Intelligence

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Experimental study on microstructural and corrosion behaviors of friction stir processed steel with CoCrFeCuTi HEA reinforcement and effect of annealing

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Science China Technological Sciences 2025年第1期 233-250页

作者： S.Aravind krishna N.RADHIKA Alokesh PRAMANIK N.JEyAPRAKASH Department of Mechanical Engineering Amrita School of EngineeringAmrita Vishwa Vidyapeetham School of Civil and Mechanical Engineering Curtin University School of Mechanical and Electrical Engineering China University of Mining and Technology

The ability to perform against extreme corrosion environments in stainless steel depreciates under challenging conditions in industrial applications. This can be resolved by employing surface modification techniques to modify the surface with the required characteristics. The present study investigates the outcomes of friction stir processing of SS304 with CoCrFeCuTi high entropy alloy(HEA) as reinforcement and the property enhancements post-annealing. The synthesized CoCrFeCuTi HEA exhibited irregular fragments with 17 μm mean particle size and body centred cubic(BCC) phase. The microstructure of the processed surface revealed ultra-refined grains with a uniform distribution of HEA filler. The microstructures of the samples annealed at 400℃, 550℃, 700℃ and 850℃ for 2 h also showed significant grain growth and grain refinements. The processed sample with HEA reinforcement annealed at 700℃ exhibited enhanced microhardness and tensile strength by 63% and 0.88 times than that of the processed sample with HEA pre-annealing. The subsequent electrochemical corrosion test displayed better corrosion resistance for the HEA-processed and annealed sample. Hot corrosion tests at 900℃ showcased excellent resistance for the HEA processed and annealed samples by 14.92%, 12.75%, and 14.83% against the samples pre-annealed under three different salt mixtures, and the corroded surface was analyzed.

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液晶弹性体单元协同驱动作为功能设计平台（英文）

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Science China Materials 2025年第1期 236-243页

作者：王瑾宇 Hari krishna Bisoyi 黄银亮徐艺艺张新芳范奔杨涛刘志洋黄帅李全 Institute of Advanced Materials and School of Chemistry and Chemical Engineering Southeast University Materials Science Graduate Program Kent State University

未来软体机器人设备的复杂性远超当前标准,因而需要建立新的设计方法.该方法需整合多个系统,以同步软执行器的运动和信号响应,从而增强柔性设备的智能性.本文提出了一个基于液晶弹性体(LCE)单元的平台,该平台将单元整合成组,以创建可扩...

未来软体机器人设备的复杂性远超当前标准,因而需要建立新的设计方法.该方法需整合多个系统,以同步软执行器的运动和信号响应,从而增强柔性设备的智能性.本文提出了一个基于液晶弹性体(LCE)单元的平台,该平台将单元整合成组,以创建可扩展的功能.每个单元的行为都是一个柔性驱动模块,可以在特定、稳定和可控的模式下进行双轴膨胀.通过以不同的方式组织LCE单元,分别实现了自适应性的软夹持器、信息处理的半加器和可调的声子带隙.这表明通过精巧地重新组装这些单元,可以在结构和功能上具备高度的可重构性和可扩展性.这种设计策略有望整合传统软执行器无法具备的多种功能,为开发智能软机器人提供平台.

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Radiation-absorption,chemical reaction,Hall and ion slip impacts on magnetohydrodynamic free convective flow over semi-infinite moving absorbent surface

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Chinese Journal of Chemical Engineering 2021年第6期34卷 40-52页

作者： M.Veera krishna Department of Mathematics Rayalaseema UniversityKurnoolAndhra Pradesh 518007India

The investigation of radiation-absorption,chemical reaction,Hall and ion-slip impacts on unsteady MHD free convective laminar flow of an incompressible viscous,electrically conducting and heat generation/absorbing fluid enclosed with a semi-infinite porous plate within a rotating frame has been *** plate is assumed to be moving with a constant velocity in the direction of fluid movement.A uniform transverse magnetic field is applied at right angles to the porous surface,which is absorbing the fluid with a suction velocity changing with *** non-dimensional governing equations for present investigation are solved analytically making use of two term harmonic and non-harmonic *** graphical results of velocity,temperature and concentration distributions on the analytical solutions are displayed and discussed with reference to pertinent *** is found that the velocity profiles decreased with an increasing in Hartmann number,rotation parameter,the Schmidt number,heat source parameter,while it increased due to an increase in permeability parameter,radiation-absorption parameter,Hall and ion slip ***,the temperature profile is an increasing function of radiation-absorption parameter,whereas an increase in chemical reaction parameter,the Schmidt number Sc or frequency of oscillations decrease the temperature profile on ***,it is found that the concentration profile is decreased with an escalating in the Schmidt number or the chemical reaction parameter.

关键词： Chemical reaction Free convection Heat source Heat transfer Mass diffusion Radiation absorption

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Non-Aligned Stagnation Point Flow of a Casson Fluid Past a Stretching Sheet in a Doubly Stratified Medium

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Fluid Dynamics & Materials Processing 2019年第3期15卷 233-251页

作者： N.Vijaya G.Venkata Ramana Reddy y.Hara krishna Koneru Lakshmaiah Education Foundation VaddeswaramGuntur522502India

This paper investigates the problem of oblique hydro magnetic stagnation point flow of an electrically conducting Casson fluid over stretching sheet embedded in a doubly stratified medium in the presence of thermal radiation and heat source/absorption with first order chemical *** is assumed that the fluid impinges on the wall *** variables were used to convert the partial differential equations to ordinary differential *** transformed ordinary differential equations are solved numerically using Runge-Kutta-Fehlberg method with shooting *** is observed that a boundary layer is formed when the stretching velocity of the surface is less than the in viscid free stream velocity at a point decreases with increase in the non-Newtonian rheology *** augmentation of the temperature is observed with the magnetic parameter,heat source parameter and thermal radiation parameter while a reverse effect with thermal stratification number,Prandtl number and the velocity ratio *** of Skin friction coefficient,Nusselt number and Sherwood number on the flow configurations for different values of pertinent parameters are portrayed graphically and *** results are compared with the published results and are found to be in good agreement with previously published results as special cases of present *** mass concentration is seen to be decrease with Schmidt number,chemical reaction parameter and solutal stratification number.

关键词： Magnetic parameter heat source prandtl number chemical reaction casson fluid free stream stagnation flow parameters

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Implications of MMP-12 in the pathophysiology of ischaemic stroke

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Stroke & Vascular Neurology 2024年第2期9卷 97-107页

作者： krishna Kumar Veeravalli Cancer Biology and Pharmacology University of Illinois College of Medicine at PeoriaPeoriaIllinoisUSA

This article focuses on the emerging role of matrix metalloproteinase-12(MMP-12)in ischaemic stroke(IS).MMP-12 expression in the brain increases dramatically in animal models of IS,and its suppression reduces brain damage and promotes neurological,sensorimotor and cognitive functional ***,MMP-12 could represent a potential target for the management of *** article provides an overview of MMP-12 upregulation in the brain following IS,its deleterious role in the post-stroke pathogenesis(blood-brain barrier disruption,inflammation,apoptosis and demyelination),possible molecular interactions and mechanistic insights,its involvement in post-ischaemic functional deficits and recovery as well as the limitations,perspectives,challenges and future directions for further *** to testing any MMP-12-targeted therapy in patients with acute IS,additional research is needed to establish the effectiveness of MMP-12 suppression against IS in older animals and in animals with *** article also examines the clinical implications of suppressing MMP-12 alone or in combination with MMP-9 for extending the currently limited tissue plasminogen activator therapy time *** of MMP-12 is expected to have a profound influence on the therapeutic management of IS in the future.

关键词： involvement alone directions

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An inverse analysis of fluid flow through granular media using differentiable lattice Boltzmann method

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第6期16卷 2077-2090页

作者： Qiuyu Wang krishna Kumar Department of Civil Architectural and Environmental EngineeringUniversity of Texas at AustinAustin78712-2100USA

This study presents a method for the inverse analysis of fluid flow *** focus is put on accurately determining boundary conditions and characterizing the physical properties of granular media,such as permeability,and fluid components,like *** primary aim is to deduce either constant pressure head or pressure profiles,given the known velocity field at a steady-state flow through a conduit containing obstacles,including walls,spheres,and *** lattice Boltzmann method(LBM)combined with automatic differentiation(AD)(AD-LBM)is employed,with the help of the GPU-capable Taichi programming language.A lightweight tape is used to generate gradients for the entire LBM simulation,enabling end-to-end *** AD-LBM approach accurately estimates the boundary conditions for complex flow paths in porous media,leading to observed steady-state velocity fields and deriving macro-scale permeability and fluid *** method demonstrates significant advantages in terms of prediction accuracy and computational efficiency,making it a powerful tool for solving inverse fluid flow problems in various applications.

关键词： Inverse problem Fluid flow Granular media Automatic differentiation(AD) Lattice Boltzmann method(LBM)

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Oscillation Frequencyof𝐵and B𝐵Mesons in a QCD Potential Model with Relativistic Effects

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Chinese Physics Letters 2011年第10期28卷 55-57页

作者： krishna Kingkar Pathak DKChoudhury Department of Physics Arya Vidyapeeth CollegeGuwahati-781016India Department of Physics Gauhati UniversityGuwahati-781014India

Wavefunction at the origin,with the incorporation of a relativistic effect,leads to singularity in a specific potential *** regularize the wavefunction,we introduced a short distance scale and used it to estimate the mass and decay constants of Bd and Bs mesons within the QCD potential *** values were then used to compute the oscillation frequency,ΔmB,of Bd and Bs *** values were found to be in good agreement with experimental and other theoretical values.

关键词： meson singularity QCD

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Role of adipose tissue grafting and adipose-derived stem cells in peripheral nerve surgery

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Neural Regeneration Research 2022年第10期17卷 2179-2184页

作者： Tiam M.Saffari Sara Saffari krishna S.Vyas Samir Mardini Alexander y.Shin Department of Orthopedic Surgery Division of Microvascular and Hand SurgeryMayo ClinicRochesterMNUSA Radboud University Medical Center Radboud Institute for Health SciencesDepartment of Plastic SurgeryNijmegenThe Netherlands Department of Surgery Division of Plastic and Reconstructive SurgeryMayo ClinicRochesterMNUSA

The application of autologous fat grafting in reconstructive surgery is commonly used to improve functional *** review aims to provide an overview of the scientific evidence on the biology of adipose tissue,the role of adipose-derived stem cells,and the indications of adipose tissue grafting in peripheral nerve *** tissue is easily accessible through the lower abdomen and inner ***-vascularized adipose tissue grafting does not support oxidative and ischemic stress,resulting in variable survival of adipocytes within the first 24 *** of adipose tissue with a stromal vascular fraction is purported to increase the number of adipose-derived stem cells and is postulated to augment the long-term stability of adipose tissue *** science nerve research suggests an increase in nerve regeneration and nerve revascularization,and a decrease in nerve fibrosis after the addition of adipose-derived stem cells or adipose *** clinical studies,the use of autologous lipofilling is mostly applied to secondary carpal tunnel release revisions with promising *** the use of adipose-derived stem cells in peripheral nerve reconstruction is relatively new,more studies are needed to explore safety and long-term effects on peripheral nerve *** Food and Drug Administration stipulates that adipose-derived stem cell transplantation should be minimally manipulated,enzyme-free,and used in the same surgical procedure,*** tissue grafts that contain native adipose-derived stem cells or stromal vascular *** research may be shifted towards the use of tissue-engineered adipose tissue to create a supportive microenvironment for autologous graft ***-ready alternatives could be enhanced with adipose-derived stem cells or growth factors and eliminate the need for adipose tissue harvest.

关键词： adipose tissue adipose-derived stem cells angiogenesis autologous fat grafting nerve injury nerve regeneration paracrine environment peripheral nerve reconstruction stem cell secretome tissue engineering

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