浅论微生物学实验中学生的主观能动性

在教学大纲规定的范围内,对微生物学基本实验的目的、要求、实验的内容和顺序,实验基本技能和学生主观能动性培养等方面进行讨论,通过确定实验内容,安排实验课题和顺序,设计实验方案,由学生预习实验,自己采集实验材料和准备实验,学生讲解演示实验,解释实验现象,仔细记录实验结果,并独立完成实验操作,从而充分发挥学生的主观能动性,提高动手动脑能力,加深对微生物学基础知识的理解。     

掌握基本原理做好全息照相实验

近代物理实验的理论性强 ,实验技术较复杂 ,对专科学生来说做好这类实验有一定难度 ,全息照相实验就是其中典型的一个重要实验。本文将从基本原理、熟悉实验的主要特点、实验内容和步骤、做好实验总结、结论五部分来谈谈全息照相实验 ,望有助于提高学生的实验能力     

大学物理设计性实验的讨论

大学物理设计性实验是一种创新型实验,实验室不确定具体实验方案,要求学生根据实验课题任务,自行设计合理的实验方案,筛选实验方法和实验所需的仪器;自己拟定实验程序,调整实验仪器,合理得出实验数据,最后写出一份完整的实验报告。设计性实验有利于鼓励学生的创造性思维,培养学生独立从事科学研究工作的能力。     

完善分子生物学实验准备工作以提高教学质量

分子生物学实验是一门基础性学科,是生物技术专业学生的必修课,是生物研究的重要工具。虽然是基础课,但实验包含一定的实验技术。实验成功与否影响学生对本学科的兴趣和对学科的理解,而实验准备是实验成功的重要因素。根据多年实验准备工作方面的经验,探讨了分子生物学实验准备过程的关键点。主要从实验前的详细准备和实验过程中师生对实验准备的反馈两方面总结。提出为使学生实验成功,引导学生积极参与实验准备,旨在为相关实验准备教师提供参考。     

《切削力测量实验》改革探索

传统的切削力测量实验为单一的演示性实验,课题组利用计算机测量技术对实验设备进行了调整,并从实验方式上也进行了改革,使实验变为综合性和设计性实验。本文从实验目的,实验设备和实验方式,实际的教学效果等方面进行了介绍,实验通过3届学生的实践教学检验,达到了预期的效果。     

基于组件的可设计性虚拟实验的构建与实现

应用组件技术构建虚拟实验,采用UI-Model体系结构设计了描述实验环境、处理仪器间交互关系的实验平台;通过表达实验内容的实验算法组件将实验平台与虚拟仪器有机地结合,实现可设计性虚拟实验.实验平台通过算法接口选择不同的算法组件,完成不同实验内容的实验,实现了虚拟实验的扩充性和设计性.以测光速实验为例说明基于组件的可设计性虚拟实验的构建原理和实现方法.     

信号与系统实验教学改革初探

信号与系统是电子信息类专业的专业基础课,通过教学改革,将信号与系统实验分为验证性实验、研究性实验和综合性实验,基于MATLAB设计并实现了一套信号与系统实验系统。其中,验证性实验和研究性实验有统一的实验界面,综合性实验要求学生编写MATLAB程序完成相应的实验。学生通过实验巩固学过的知识,提高了综合能力。     

论实验动物福利、动物实验与动物实验替代方法

动物实验是实验动物科学的两大研究领域之一。动物实验是以实验动物为材料,采用各种方法在实验动物身上进行科学实验,研究动物实验过程中实验动物的反应、表现及其发生发展规律等问题,着重解决如何正确的选择、应用实验动物和动物模型进行各种动物实验,解决科学实验中的问题,获得新的认识,发现新的规律,实现动物实验的标准化。     

计算机控制技术实验平台开发

本文开发了一套计算机控制技术实验平台,该实验平台可完成8个计算机控制实验,其中包含基本实验和综合实验两部分训练,并有针对性的介绍了2个实验的实验设计方法.实验装置设计合理,并设有扩展功能,可做为学生自行设计实验和进一步实验开发的基础,具有很强的针对性和实用性.     

病原生物学与免疫学实验教学研究

目的:探讨病原生物学与免疫学在实验教学内容、实验模式、考核方式上的改革思路.方法:实验教学内容上的改革,将原来的验证性实验向设计性实验与综合性实验转变;实验模式上的改革,将原来限定时间的实验模式逐渐向开放性实验模式转变;实验考核方式上采取多种形式,从理论知识的考核到自主设计性实验与综合性实验的考查,从实验步骤的操作过程...     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with