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新教材背景下中小学教师教材执行力探赜

教学与管理 2025年第1期 39-43页

作者：王中华刘玲玲贵州师范大学教育学院贵阳550025

在2024年秋季学期新教材启用的背景下,中小学教师的教材执行力对于构建高质量教材体系具有重要的现实意义,对于引领教材改革、落实培养学生核心素养及促进教材创新发展发挥着关键作用。当前,教师的教材执行力主要体现在教材执行前的认... 详细信息

在2024年秋季学期新教材启用的背景下,中小学教师的教材执行力对于构建高质量教材体系具有重要的现实意义,对于引领教材改革、落实培养学生核心素养及促进教材创新发展发挥着关键作用。当前,教师的教材执行力主要体现在教材执行前的认知能力、教材执行中的运用能力和教材执行后的反馈能力等三个维度。然而,教师在教材执行过程中存在认知迷思、运用失当和反馈匮乏的问题,导致教材执行效果不理想。基于此,转变思维方式、活用教材栏目、强化理论指导及改进评价机制成为提升中小学教师教材执行力、推动教材教学高质量发展的重要动力和关键策略。

关键词：新教材中小学教师教材执行力

Cardiovascular computed tomography in cardiovascular disease:An overview of its applications from diagnosis to prediction

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Journal of Geriatric Cardiology 2024年第5期21卷 550-576页

作者： zhong-hua SUN Discipline of Medical Radiation Science Curtin Medical SchoolCurtin UniversityPerthAustralia Curtin Health Innovation Research Institute(CHIRI) Curtin UniversityPerth 6012Australia

Cardiovascular computed tomography angiography(CTA)is a widely used imaging modality in the diagnosis of cardiovascular *** in CT imaging technology have further advanced its applications from high diagnostic value to minimising radiation exposure to *** addition to the standard application of assessing vascular lumen changes,CTA-derived applications including 3D printed personalised models,3D visualisations such as virtual endoscopy,virtual reality,augmented reality and mixed reality,as well as CT-derived hemodynamic flow analysis and fractional flow reserve(FFRCT)greatly enhance the diagnostic performance of CTA in cardiovascular *** widespread application of artificial intelligence in medicine also significantly contributes to the clinical value of CTA in cardiovascular *** value of CTA has extended from the initial diagnosis to identification of vulnerable lesions,and prediction of disease extent,hence improving patient care and *** this review article,as an active researcher in cardiovascular imaging for more than 20 years,I will provide an overview of cardiovascular CTA in cardiovascular *** is expected that this review will provide readers with an update of CTA applications,from the initial lumen assessment to recent developments utilising latest novel imaging and visualisation *** will serve as a useful resource for researchers and clinicians to judiciously use the cardiovascular CT in clinical practice.

关键词： diagnosis cardiovascular prediction

ON THE CONVERGENCE OF IMPLICIT DIFFERENCE SCHEMES FOR HYPERBOLIC CONSERVATION LAWS

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Journal of Computational Mathematics 2002年第2期20卷 121-128页

作者： hua-zhong Tang hua-mo Wu School of Mathematical Sciences Peking UniversityBeijing 100871China LSEC ICMSECAcademy of Mathematics and System SciencesChinese Academy of SciencesBeijing 100080China

Discusses the treatment of implicit difference approximations to hyperbolic conservation laws with non-convex flux. Information on weighted implicit difference schemes; Convergence of difference scheme; Establishment ... 详细信息

关键词： conservation laws weighted implicit schemes entropy solution

ON THE CELL ENTROPY INEQUALITY FOR THE FULLY DISCRETE RELAXING SCHEMES

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Journal of Computational Mathematics 2001年第5期19卷 511-518页

作者： hua-zhong Tang hua-mo Wu School of Mathematical Sciences Peking UniversityBeijing 100871China LSEC JCMSECAcademy of Mathematics and Systems SciencesChinese Academy of SciencesBeijing 100080China

Presents a study on the cell entropy inequality for two classes of fully discrete relaxing schemes approximating scalar conservation laws. Main advantage of the schemes; Review of the construction of the relaxing syst... 详细信息

关键词： the relaxing schemes entropy inequality conservation laws

On Duality in Filtered Cohomologies

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Acta Mathematica Sinica,English Series 2019年第5期35卷 597-608页

作者： hua zhong KE School of Mathematics Sun Yat-sen University

For a symplectic manifold(M^(2n), ω) without boundary(not necessarily compact), we prove Poincaré type duality in filtered cohomology rings of differential forms on M, and we use this result to obtain duality betwee... 详细信息

关键词： Symplectic manifolds filtered cohomology Lefschetz map

A new modified remote user authentication scheme using smart cards

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Applied Mathematics(A Journal of Chinese Universities) 2008年第3期23卷 371-376页

作者： SHEN zhong-hua School of Sci. Hangzhou Normal Univ. Hangzhou 310036 China

In 2000, a remote user authentication scheme using smart cards was proposed and the masquerade attacks were proved successful on this scheme. Recently, Kumar has suggested the idea of check digits to overcome the above attacks with a new scheme that removes these threats well. In this paper it is pointed out that the weakness still exists in Kumar＇s scheme, and the intruder can login to the remote system through having some information. A new scheme which can overcome these attacks and appears more secure and efficient than Kumar＇s is presented.

关键词： remote user authentication smart card cryptography

Abdominal aortic aneurysm： Treatment options, image visualizations and follow-up procedures

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Journal of Geriatric Cardiology 2012年第1期9卷 49-60页

作者： zhong-hua Sun Discipline of Medical Imaging Department of lmaging and Applied Physics Curtin University Perth Western Australia 6845 Australia

Abdominal aortic aneurysm is a common vascular disease that affects elderly *** surgical repair is regarded as the gold standard technique for treatment of abdominal aortic aneurysm,however,endovaseular aneurysm repair has rapidly expanded since its first introduction in *** a less invasive technique,endovascular aneurysm repair has been confirmed to be an effective alternative to open surgical repair,especially in patients with co-morbid *** tomography （CT） angiography is currently the preferred imaging modality for both preoperative planning and post-operative follow-up.2D CT images are complemented by a number of 3D reconstructions which enhance the diagnostic applications of CT angiography in both planning and follow-up of endovascular *** has the disadvantage of high cummulative radiation dose,of particular concern in younger patients,since patients require regular imaging follow-ups after endovascular repair,thus,exposing patients to repeated radiation exposure for *** is a trend to change from CT to ultrasound surveillance of endovascular aneurysm *** image visualizations demonstrate excellent morphological assessment of aneurysm and stent-grafts,but fail to provide hemodynamic changes caused by the complex stent-graft device that is implanted into the *** article reviews the treatment options of abdominal aortic aneurysm,various image visualization tools,and follow-up procedures with use of different modalities including both imaging and computational fluid dynamics *** directions to improve treatment outcomes in the follow-up of endovascular aneurysm repair are outlined.

关键词： Abdominal aortic aneurysm Computed tomography Follow-up Stent graft Treatment Visualization.

HIGH RESOLUTION SCHEMES FOR CONSERVATION LAWS AND CONVECTION-DIFFUSION EQUATIONS WITH VARYING TIME AND SPACE GRIDS

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Journal of Computational Mathematics 2006年第2期24卷 121-140页

作者： hua-zhong Tang Gerald Warnecke LMAM School of Mathematical Sciences Peking University Beijing 100871 China Institut fiir Analysis und Numerik Otto-von-Guericke Universitat Magdeburg 39106 Magdeburg Germany

This paper presents a class of high resolution local time step schemes for nonlinear hyperbolic conservation laws and the closely related convection-diffusion equations, by projecting the solution increments of the underlying partial differential equations （PDE） at each local time step. The main advantages are that they are of good consistency, and it is convenient to implement them. The schemes are L^∞ stable, satisfy a cell entropy inequality, and may be extended to the initial boundary value problem of general unsteady PDEs with higher-order spatial derivatives. The high resolution schemes are given by combining the reconstruction technique with a second order TVD Runge-Kutta scheme or a Lax-Wendroff type method, respectively. The schemes are used to solve a linear convection-diffusion equation, the nonlinear inviscid Burgers＇ equation, the one- and two-dimensional compressible Euler equations, and the two-dimensional incompressible Navier-Stokes equations. The numerical results show that the schemes are of higher-order accuracy, and efficient in saving computational cost, especially, for the case of combining the present schemes with the adaptive mesh method [15]. The correct locations of the slow moving or stronger discontinuities are also obtained, although the schemes are slightly nonconservative.

关键词： Hyperbolic conservation laws Degenerate diffusion High resolution scheme,Finite volume method Local time discretization.

Clinical outcomes of COVID-19 in elderly male patients

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Journal of Geriatric Cardiology 2020年第5期17卷 243-245页

作者： zhong-hua SUN Department of Medical Radiation Sciences Curtin UniversityPerth6845Western AustraliaAustralia

Coronavirus disease 2019(COVID-19),caused by severe acute respiratory syndrome coronavirus 2(SARS-Co V-2)has spread throughout the world involving more than 200 countries with more than 3 million confirmed cases and over 200,000 deaths worldwide.[1]COVID-19 patients primarily present with respiratory symptoms showing abnormal lung changes on chest X-ray or computed tomography(CT)with typical imaging appearances of ground glass opacities and consolidation.

关键词： Clinical features COVID-19 Male patients