On publication characteristics of research establishments

Patterns of publication output, multiple authorship and individual productivity are measured for three physics institutions. The findings are compared with earlier results on publication rates in journals and some other research laboratories.     

The readability of physics papers

Czechoslovak Journal of Physics - This seems to provide the main answer to the question — Have physics papers become more unreadable with time? It all depends on what you mean by...     

中外物理教育研究与发展的初步比较

教学期刊论文的情况是教学情况的一种反映．国内外的物理教育研究期刊分别为《物理教学》、《大学物理》、Physics Education，The Physics Teacher和American Journal of Physics．文章利用物理教学期刊论文，分别从论文的形式(前言、摘要和参考文献)和内容两方面对中国与国际的物理教育研究与发展开展了初步的比较研究，通过利用教育理论对统计资料的解释初步揭示了国内外物理教育研究的差距，为它们的进一步发展提供了启发性和指导性的建议．     

制止物理出版物中科学不端行为的行动准则

文章及所附附件介绍国际纯粹与应用物理联合会(IUPAP)召开的“科学不端行为以及物理学刊物在防止与调查此类行为中的作用研讨会”及会后形成的正式文件《科学出版中的道德行为国际准则》．在揭露我国物理学出版物中一些严重科学不端行为后，文章对这一文件的重要性及其对我国物理学界清除和制止科学不端行为的现实意义作了讨论．     

A new departure in conference reports

In recent years The Institute of Physics and The Physical Society has given very valuable support to the organization of large international conferences on several branches of physics: e.g. it did so in the case of the International Conference on Magnetism held in Nottingham in September 1964, when nearly 600 participants attended; the papers a t this Conference were duly refereed and published as a large bound volume in association with The Proceedings of the Physical Society. Now, it is not always desirable or expedient to hold such large conferences more than about once in every three years. Nevertheless, there are certain specialized fields of research in magnetism—as indeed there are in many other branches of physics—where the rate of advance of knowledge is such that i t is well worth while to organize smaller conferences with lesser numbers of participants but with a global distribution of the latter. To this need the I.P.P.S. has responded, and the Conference Booklet No. 1 contains the proceedings of the International Conference on High Magnetic Fields and their Applications, organized jointly by its Solid-state Physics Sub-Committee and its Magnetism Group, under the chairmanship of Professor N. Kurti, for 120 participants a t Nottingham, from 17th to 19th September 1969, with the valued support of the International Union of Pure and Applied Physics.     

The effect of grain size of the sample on the determination of the temperature and lattice defects factor by X-ray diffraction

Czechoslovak Journal of Physics - The influence of the particle effect on the distortion of the temperature and lattice defects coefficcient 2M as determined from integrated intensities of X-ray...     

Microscopic nuclear structure with subnucleonic degrees of freedom

Czechoslovak Journal of Physics - The long-standing picture of the nucleus as a system of nucleons is considered to be basically correct and therefore forms the starting point for corrections. The...     

Line and planar singularities in an anisotropic medium

The problem of a line or planar singularity in an anisotropic medium is treated on the basis of Fourier transformation. Fourier transforms of all basic quantities are given as well as general integral formulae for the displacement and stress fields. The results are applied to the Peierls-Nabarro model of a dislocation in an anisotropic medium.The author is greatly indebted to Mrs. J. Gemperlová from the Institute of Physics of the Czechoslovak Academy of Sciences, Prague, for very valuable discussions and many helpful comments.     

我国医学物理工作者的任务

医学中的物理学问题涉及把物理学的概念、理论和方法应用于人类疾病的预防、诊断、治疗和康复的全过程．因此，由物理学和医学结合而形成的医学物理学科必须按照一个一级学科规范要求做出定义，使得这个专业的学生能够在与其他学科大体相当的时间内完成学业，成为这方面的专门人才．世界上50多年来形成并快速发展的医学物理学科已经定义了自己的学科范围和内容，人们可以从中获得启发．现在世界医学物理学的主流仍然是医学影像物理学和肿瘤放疗物理学，但是物理学的各个分支学科都已经和正在形成与医学结合的新的发展方向．很多新技术，例如超声技术、激光技术、纳米材料技术、电磁波技术、磁共振技术、同位素技术、光源和射线探测技术等等，也都是医学物理学科中广泛使用的关键技术．文章从医学的需求角度，把医学中的物理问题归纳为诊断、治疗、医疗装置和医学软件四个方面，并由此分析了医学物理工作的任务．     

Reflectivity of strongly doped n-Bi2Te3 crystals in the IR region

Czechoslovak Journal of Physics - Reflectivity has been measured in the region of plasma resonance frequency on strongly doped n-Bi2Te3(I) crystals with a free electron concentration of 2×10...     

Stochastic model of the crystal growth II. comparison of the theory with known results

Czechoslovak Journal of Physics - As we have pointed out in part I, our model makes it possible to connect the kinetic processes at the solidification front with the heat transport. This connection...     

Mode excitation of optical strip waveguides and fibers by end-fire mutual coupling

Czechoslovak Journal of Physics - Excitation of different modes of both strip waveguides and fibers by their end-fire mutual coupling has been thoroughly investigated theoretically. It is shown...     

Thermal axially symmetric charged-particle beams in the paraxial region

Czechoslovak Journal of Physics - The formalism of the elementary solution of the Vlasov kinetic equation described in this paper enables us to investigate rather easily macroscopic properties of...     

Calculation of the spin-dependent effective mass of the conduction electron by Green's functions

Czechoslovak Journal of Physics - The perturbation method and the method of Green's functions are used to calculate the correction to the energy of conduction electrons in a ferromagnetic metal...     

基于大学物理实验第二层次教学的学生创新能力培养探讨

从第二层次大学物理实验教学、全国大学生物理学术竞赛和大学生创新能力培养之间关系的角度,分析了大学物理实验第二层次教学和大学生物理学术竞赛中存在的学生能力培养不足的问题.提出了在大学物理第二层次实验教学中,通过深挖学生创新能力培养的内涵,并与全国大学生物理学术竞赛成果相融合来提高学生创新能力培养的途径.     

Remark on the decay of a mixed state

Czechoslovak Journal of Physics - The initial decay rate of a mixed state is discussed; is shown to be zero for finite energy states. In the previous paper [1] we investigated a general scheme for...     

An effective mass analysis in cosmic ray jets

The method of invariant mass spectra of groups of particles, known from the search for multiparticle resonant states in high energy physics, is applied to secondary particles in cosmic ray jets. The results are discussed in connection with the fire-ball model and the H-quanta model for the multiple production of particles in a very high energy region.The authors would like to thank Dr. J. L. Pernegr for his constant interest in this work and also the staff of the GIER computer group of the Nuclear Research Institute, Czechoslovak Academy of Sciences, for the computing facilities.     

Galileo-invariant theory of low energy pion-nucleus scattering

Czechoslovak Journal of Physics - Using two versions of Galileo-invariant optical model,π −-4He elastic scattering cross sections were calculated in the energy interval 50–260 MeV....     

Monte Carlo study of the hard triatomic molecular systems

Czechoslovak Journal of Physics - Equilibrium behaviour of the linear and non-linear hard triatomic molecule systems was studied by the Monte Carlo simulation technique at the packing fractions of...