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Successful emergency surgical intervention in acute non-STsegment elevation myocardial infarction with rupture:A case report

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World Journal of Clinical Cases 2025年第4期13卷 41-47页

作者： Xing-Po Li Zi-Shan Wang Hong-Xia yu Shan-Shan Wang Department of Cardiovascular Medicine Huantai County Hospital of Traditional Chinese MedicineZibo 256400Shandong ProvinceChina Department of Cardiovascular Medicine Zibo Hospital of Integrated Traditional Chinese and Western MedicineZibo 255500Shandong ProvinceChina

BACKGROUND The incidence of acute myocardial infarction(AMI)is rising,with cardiac rupture accounting for approximately 2%of deaths in patients with acute ST-segment elevation myocardial infarction(STEMI).ventricular free wall rupture(FWR)occurs in approximately 2%of AMI patients and is notably rare in patients with *** of cardiac rupture include left ventricular FWR,ventricular septal rupture,and papillary muscle *** FWR usually leads to acute cardiac tamponade or electromechanical dissociation,where standard resuscitation efforts may not be *** septal rupture and papillary muscle rupture often result in refractory heart failure,with mortality rates over 50%,even with surgical or percutaneous repair *** SUMMARY We present a rare case of an acute non-STEMI patient who suffered sudden FWR causing cardiac tamponade and loss of consciousness immediate before undergoing coronary *** resuscitation and emergency open-heart repair along with coronary artery bypass grafting resulted in successful patient *** This case emphasizes the risks of AMI complications,shares a successful treatment scenario,and discusses measures to prevent such complications.

关键词： Acute non-ST segment elevation myocardial infarction Cardiac rupture Acute myocardial infarction Free wall rupture Case report

Pan-TRK positive uterine sarcoma in immunohistochemistry without neurotrophic tyrosine receptor kinase gene fusions:A case report

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World Journal of Clinical Cases 2025年第2期13卷 39-49页

作者： Seungmee Lee yu-Ra Jeon Changmin Shin Sun-Young Kwon Sojin Shin Department of Obstetrics and Gynecology Keimyung University School of MedicineDaegu 42601South Korea Department of Pathology and Institute for Cancer Research Keimyung University School of MedicineDaegu 42601South Korea

BACKGROUND The classification of uterine sarcomas is based on distinctive morphological and immunophenotypic characteristics,increasingly supported by molecular genetic *** on neurotrophic tyrosine receptor kinase(NTRK)gene fusionpositive uterine sarcoma,potentially aggressive and morphologically similar to fibrosarcoma,are limited due to its recent ***-TRK immunohistochemistry(IHC)analysis serves as an effective screening tool with high sensitivity and specificity for NTRK-fusion *** SUMMARY We report a case of a malignant mesenchymal tumor originating from the uterine cervix,which was pan-TRK IHC-positive but lacked NTRK gene fusions,accompanied by a brief literature review.A 55-year-old woman presented to the emergency department with abdominal pain and distension,exhibiting significant ascites and multiple solid pelvic *** examination revealed a tumor encompassing the uterine cervix,extending to the vagina and uterine corpus.A punch biopsy of the cervix indicated NTRK sarcoma with positive immunochemical pan-TRK ***,subsequent next generation sequencing revealed no NTRK gene fusion,leading to a diagnosis of poorly differentiated,advanced-stage *** The clinical significance of NTRK gene fusion lies in potential treatment with TRK inhibitors for positive *** such rare tumors is crucial due to the potential applicability of tropomyosin receptor kinase inhibitor treatment.

关键词： Uterine sarcoma Cervical sarcoma Neurotrophic tyrosine receptor kinase gene fusion Next generation sequencing Case report

A comprehensive investigation on nonlinear vibration and bending characteristics of bio-inspired helicoidal laminated composite structures

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Applied Mathematics and Mechanics(English Edition) 2025年第1期46卷 81-100页

作者： S.SAURABH R.KIRAN D.SINGH R.vAISH v.S.CHAUHAN School of Mechanical and Materials Engineering Indian Institute of Technology Mandi

Bio-inspired helicoidal composite laminates, inspired by the intricate helical structures found in nature, present a promising frontier for enhancing the mechanical properties of structural designs. Hence, this study provides a comprehensive investigation into the nonlinear free vibration and nonlinear bending behavior of bio-inspired composite plates. The inverse hyperbolic shear deformation theory(IHSDT) of plates is employed to characterize the displacement field, with the incorporation of Green-Lagrange nonlinearity. The problem is modeled using the C0finite element method(FEM), and an in-house code is developed in the MATLAB environment to solve it numerically. various helicoidal layup configurations including helicoidal recursive(HR), helicoidal exponential(HE), helicoidal semi-circular(HS), linear helicoidal(LH), and Fibonacci helicoidal(FH)with different layup sequences and quasi-isotropic configurations are studied. The model is validated, and parametric studies are conducted. These studies investigate the effects of layup configurations, side-to-thickness ratio, modulus ratios, boundary conditions, and loading conditions at different load amplitudes on the nonlinear vibration and nonlinear bending behaviors of bio-inspired composite plates. The results show that the laminate sequence exerts a substantial impact on both nonlinear natural frequencies and nonlinear bending behaviors. Moreover, this influence varies across different side-to-thickness ratios and boundary conditions of the bio-inspired composite plate.

关键词： finite element method (FEM) nonlinear Green-Lagrange inverse hyperbolic shear deformation theory (IHSDT) bio-inspired composite plate helicoidal O322

Proposal for a nuclear light source

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Chinese Physics C 2023年第2期47卷 116-122页

作者： E.v.Tkalya P.v.Borisyuk M.S.Domashenko yu.yu.Lebedinskii P.N.Lebedev Physical Institute of the Russian Academy of Sciences 11999153 Leninskiy pr.MoscowRussia National Research Nuclear University MEPhI 115409Kashirskoe shosse 31MoscowRussia

This study considers a principal possibility of creating a nuclear light source of the vacuum ultra violet(vUv) range based on the ^(229)Th *** nuclear light source can help solve two main problems—excitation of the low-lying^(229m)Th isomer and precision measurement of the nuclear isomeric transition *** thorium nuclear light source is based on the nuclei implanted in a thin dielectric film with a large *** passing an electric current through the sample,the^(229)Th nuclei are excited to the low energy isomeric state 3/2^(+)(8.19±0.12ev) through the process of inelastic scattering of conduction *** subsequent spontaneous decay of^(229m)Th is followed by the emission of γ quanta in the vUv *** luminosity of the thorium nuclear light source is approximately 10^(5)photons/s per 1 A of current,per 1 ng of^(229)*** suggested scheme to obtain γ radiation from the^(229m)Th isomer can be considered as a type of nuclear analogue of the optical radiation from the usual metal-insulator-semiconductor(MIS) junction.

关键词： Th-229m excitation by electrons optical range gamma emission

Single cell tells the developmental story

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Science Bulletin 2016年第17期61卷 1355-1357页

作者： Zhengyan Zhan Xin Xu yu v.Fu State Key Laboratory of Microbial Resources Institute of MicrobiologyChinese Academy of Sciences

Stem cells are undifferentiated cells that retain the ability to self-renew and differentiate into specialized cells,offering a promising resource to generate requisite cell types in regenerative medicine[1,2].Haematopoietic stem cells(HSCs)can differentiate into entire mature blood lineages,sitting at the apex of the haematopoietic hierachy and playing a key role in the long-term maintenance and stabilization of mammalian blood system functions[3,4].HSCs are mostly found in embryo and bone marrow,but also with small amounts in peripheral ***

关键词： maintenance differentiate specialized stabilization embryo mature story retain offering developmental

Ignition Process Evolution at High Supersonic velocities in Channel

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Journal of Thermal Science 2009年第2期18卷 166-172页

作者： M.A.Goldfeldl A.v.Starov K.yu.Timofeev v.A.vinogradov Institute of Theoretical and Applied Mechanics Central Institute of Aviation Motors

The results of experimental research of multi-injector combustors in the regime of the attached pipe are *** a source of high-enthalpy working gas (air), hot shot wind tunnel IT-302M of ITAM, the Siberian Branch ofthe Russian Academy of Sciences was used. Tests have been carried out at Mach numbers 3,4 and 5, in a range ofchange of total temperature from 2000K up to 3000K and static pressure from 0.08MPa up to 0.23MPa. Injectorsection has been manufactured in two versions with a various relative height of wedge-shaped injectors with parallelfuel injection. Influence of conditions on the entrance of the combustion chamber on ignition and a stablecombustion of hydrogen was investigated. Intensive combustion of hydrogen has been received only at Machnumbers 3 and 4. Advantage of injector section with the greater relative height of injectors is revealed. Themechanism of fuel ignition in the combustion chamber of the given configuration was investigated: two-step ignitionprocess including 'kindling' and intensive combustion over all channel volume.

关键词： supersonic combustor ignition stable combustion.

Fermionized Dual vortex Theory for Magnetized Kagome Spin Liquid

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Chinese Physics Letters 2024年第11期41卷 202-207页

作者： Si-yu Pan Gang v.Chen International Center for Quantum Materials School of PhysicsPeking UniversityBeijing 100871China Collaborative Innovation Center of Quantum Matter Beijing 100871China

Inspired by the recent quantum oscillation measurement on the kagome lattice antiferromagnet in finite magnetic fields,we raise the question about the physical contents of the emergent fermions and the gauge fields if the U(1)spin liquid is relevant for the finite-field kagome lattice ***,the magnetic field is non-perturbative in this regime,and the finite-field state has no direct relation with the U(1)Dirac spin liquid proposal at zero *** here consider the fermionized dual vortex liquid state as one possible candidate theory to understand the magnetized kagome spin *** the dual vortex theory,the S^(z) magnetization is the emergent U(1)gauge flux,and the fermionized dual vortex is the emergent *** magnetic field polarizes the spin component that modulates the U(1)gauge flux for the fermionized vortices and generates the quantum *** the mean-field theory,we discuss the gauge field correlation,the vortex–antivortex continuum and the vortex thermal Hall effect.

关键词： oscillation. effect. field.

Dreicer Electric Field Definition and Runaway Electrons in Solar Flares

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Research in Astronomy and Astrophysics 2024年第2期24卷 180-184页

作者： yu.T.Tsap A.v.Stepanov yu.G.Kopylova Crimean Astrophysical Observatory of the Russian Academy of Sciences Nauchny298409Russia Pulkovo Observatory of the Russian Academy of Sciences Pulkovskoje Shosse65/1St.Petersburg196140Russia

We analyze electron acceleration by a large-scale electric field E in a collisional hydrogen plasma under the solar flare coronal conditions based on approaches proposed by Dreicer and Spitzer for the dynamic friction force of *** Dreicer electric field EDr is determined as a critical electric field at which the entire electron population runs *** regimes of strong(E≲E_(Dr))and weak(E≪E_(Dr))electric field are *** is shown that the commonly used formal definition of the Dreicer field leads to an overestimation of its value by about five *** critical velocity at which the electrons of the"tail"of the Maxwell distribution become runaway under the action of the sub-Dreiser electric fields turns out to be underestimated by√3 times in some works because the Coulomb collisions between runaway and thermal electrons are not taken into *** electron acceleration by sub-Dreicer electric fields generated in the solar corona faces difficulties.

关键词： acceleration of particles-Sun flares-Physical Data and Processes

Energy of a solid sphere under nonstationary oscillations

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Science China(Physics,Mechanics & Astronomy) 2014年第3期57卷 469-476页

作者： PETROv yu. SMIRNOv v. UTKIN A. BRATOv v. St.-Petersburg State University Institute of Problems of Mechanical Engineering Russian Academy of Sciences St.-Petersburg State Transport University

Analytical solution for spherically symmetric nonstationary oscillations of acoustic and elastic solid sphere is *** dependence of potential,kinetic and internal energy of a solid sphere is *** received results are of practical importance for a wide range of problems connected to testing of material dynamic strength parameters and to the problems of optimizing(minimizing)energy needed for fracture of solids.

关键词： nonstationary oscillations analytical solution material dynamics dynamic elastisity kinetic energy potential energy internal energy energy exchange