关于RNP和SCS的若干等价条件

使用切片方法，讨论了Banach空间中有界闭凸子集的RNP和SCS的若干等价条件．     

无RNP Banach空间中集值测度的Radon-Nikodym定理

自七十年代初以来关于集值测度的Radon-Nikodym导数取得了不少成果,所有这些成果中均要求所考虑的Banach空间具有RNP,本文在无RNP的Banach空间中建立了集值测度的Radon-Nikodym定理.     

Photochemische reaktionen von übergangsmetall-olefin-komplexen: XI. [4+ 6]-cycloaddition von tricyclo[6.3.0.02,7]undeca-3,5-dien antricarbonyl-η6-1,3,5-cycloheptatrien-chrom(0)

The photochemical reaction of tricarbonyl-η⁶-1,3,5-cycloheptatriene-chromium(0) (I) with tricyclo[6.3.0.0^2,7]undeca-3,5-diene (II) in n-pentane at 248 K yields the [4 + 6]-cycloadduct tricarbonyl-η⁶-pentacyclo[7.6.2.1^10,15.0^2,8.0^3,7]octadeca-11,13,16-triene-chromium(0) (III). Detachment of the pentacyclic triene ligand from chromium can be achieved with trimethylphosphite. The constitutions of complex III and of the pentacyclic hydrocarbon IV were determined by spectroscopic means.     

Rhenocene: Magnetic circular dichroism and laser-induced fluorescence in nitrogen matrices

Rhenocene generated in nitrogen matrices by photolysis of Re(η-C₅H₅)₂H, shows an intense, structured progression in magnetic circular dichroism. The non-linear magnetic field and temperature dependence of the dichroism indicate a ²E_2g(= 5/2) ground state. Lazer-induced fluorescence is used to establish the (0.0) component of the absorption band and to derive the energies of three totally symmetric vibrational fundamentals.     

Radon-Nikodym性质与范数的Gteaux可微性

本文研究了Banach空间中集合的RNP与范数的G^ateaux可微性之间的关系 ,给出了关于Banach空间中集合具RNP的一些充要条件     

RNP STRUCTURE IN METAPHASE CHROMOSOMES OF Vicia faba

The results of studies on ultrastructural and cytochemical features of metaphase chromosomes of Vicia faba are reported. In conventionally stained specimens are observed many electron-lucent compartments, in which exists an internal fibrillar-granular structure. When stained with the Bernhard's technique, the internal structure is found to consist of ribonucleoprotein (RNP) fibrilsand granules that measure about 15 to 20 nmin diameter. In the transverse section of metaphase chromosomes, the RNP structures are distributed in both the central and the peripheral regions of chromatids. It is conceivable that this RNP structure constitutes a special component of chromosomes. The distribution of the RNP structure in a chromosome and some questions related to the chromosomal scaffold are discussed on the basis of these data.     

Phase separation: Bridging polymer physics and biology

Significant parallels exist between the phase separation behavior of polymers in solution and the types of biomolecular condensates, or ‘membraneless organelles,’ that are of increasing interest in living systems. Liquid–liquid phase separation allows for compartmentalization and the sequestration of materials and can be harnessed as a sensitive strategy for responding to small changes in the environment. Here, I review many of the parallels and synergies between ongoing efforts to study and take advantage of phase separation in living versus synthetic materials.     

Estimation of Phosphorus and Sulphur Contents in Nuclear Constituents by Means of Image-EELS Analysis Using Ribosomes as Internal Standards

A quantitative study by means of electron energy-loss spectroscopic imaging (image-EELS) is performed on a biological specimen, using ribosomes as internal standard. Phosphorus and sulphur are studied; it is shown in the case of phosphorus analysis that results obtained are in agreement with a previous study using a different energy filtering microscope.

In most biological specimens, atoms of sulphur may be present in the vicinity of phosphorus atoms; in such cases the signal obtained from sulphur will overlap with the continuum coming from the phosphorus signal, thus making the element-specific maps of sulphur superimposed on a background signal coming from phosphorus. In this work a method is suggested of separating the phosphorus contribution to the sulphur signal, using a reference spectrum from gallium phosphide.     

Radon-Nikodym性质与范数的Gateaux可微性

本研究了Banach空间中集合的RNP与范数的Gateaux可微性之间的关系，给出了关于Banach空间中集合具RNP的一些充要条件．