Organization of methodological assistance to teachers in educating parents of young children: from the experience of the past

The article presents the period of creation of a new type of preschool institution in Russia - a nursery-garden and the problems of training teachers to work with young children and their parents that arose in this regard.В статье рассматривается период создания в России нового типа дошкольного учреждения - яслей-сада и возникших в связи с этим проблем подготовки педагогических кадров для работы с детьми раннего возраста и их родителями

Carbon States in Carbon-Encapsulated Nickel Nanoparticles Studied by Means of X-Ray Absorption, Emission, and Photoelectron Spectroscopies

Electronic structure of nickel nanoparticles encapsulated in carbon was characterized by photoelectron, X-ray absorption, and X-ray emission spectroscopies. Experimental spectra are compared with the density of states calculated in the frame of the density functional theory. The carbon shell of Ni nanoparticles has been found to be multilayer graphene with significant (about 6%) amount of Stone--Wales defects. Results of the experiments evidence protection of the metallic nanoparticles from the environmental degradation by providing a barrier against oxidation at least for two years. Exposure in air for 2 years leads to oxidation only of the carbon shell of Ni@C nanoparticles with coverage of functional groups.Comment: 16 pages, 6 figures, accepted in J. Phys. Chem.

ЛЕЧЕНИЕ И ПРОФИЛАКТИКА АДЕНОИДИТОВ БАКТЕРИАЛЬНЫМИ ЛИЗАТАМИ У ЧАСТО БОЛЕЮЩИХ ДЕТЕЙ

We carried out the analysis of researches devoted to the treatment of children with chronic adenoiditis and hypertrophy of adenoid vegetations. We proved that the usage of topic immunomodulator IRS19 incombination with etiotropic treatment allows to sanate lymphoid tissues in nasopharynx effectively and to preserve its continuity as an important organ supplying unspecific and specific protection of the child’s organism.Проведен анализ исследований, посвященных лечению детей с хроническим аденоидитом и гипертрофией аденоидных вегетаций. Показано, что применение топического иммуномодулятора ИРС 19 в комплексе с этиотропным лечением позволяет более эффективно провести санацию лимфоидной ткани носоглотки и сохранить ее целостность как важного органа, обеспечивающего неспецифическую и специфическую защиту детского организма

Mto2 multisite phosphorylation inactivates non-spindle microtubule nucleation complexes during mitosis

Microtubule nucleation is highly regulated during the eukaryotic cell cycle, but the underlying molecular mechanisms are largely unknown. During mitosis in fission yeast Schizosaccharomyces pombe, cytoplasmic microtubule nucleation ceases simultaneously with intranuclear mitotic spindle assembly. Cytoplasmic nucleation depends on the Mto1/2 complex, which binds and activates the γ-tubulin complex and also recruits the γ-tubulin complex to both centrosomal (spindle pole body) and non-centrosomal sites. Here we show that the Mto1/2 complex disassembles during mitosis, coincident with hyperphosphorylation of Mto2 protein. By mapping and mutating multiple Mto2 phosphorylation sites, we generate mto2-phosphomutant strains with enhanced Mto1/2 complex stability, interaction with the γ-tubulin complex and microtubule nucleation activity. A mutant with 24 phosphorylation sites mutated to alanine, mto2[24A], retains interphase-like behaviour even in mitotic cells. This provides a molecular-level understanding of how phosphorylation ‘switches off' microtubule nucleation complexes during the cell cycle and, more broadly, illuminates mechanisms regulating non-centrosomal microtubule nucleation

Die verantwoordelikheid van die kerk ten opsigte van die sosio-politieke terrein in Suid-Afrika

Verhandeling (B. Th.) -- Universiteit van Stellenbosch, 1988.Full text to be digitised and attached to bibliographic record

Mass spectrometry of complex compound of bis-thiourea-lead (II) chloride

Complex compounds of lead salts and thiourea are of interest due to the possibility of their practical application as precursors in the deposition of metal sulphide films. It is relevant to establish the relationship between the composition and structure of the initial complex compounds and the structure of the sulphides formed as a result of their thermal destruction. This paper presents the results of studying the complex compounds formed in an aqueous solution of lead chloride and thiourea. The structure of the complex compounds was determined by matrix-assisted laser desorption/ionisation mass spectrometry. The mass spectrometry data confirmed the formation of the [Pb((NH2)2CS)2Cl2] complex in the solution, which is a precursor in the deposition of PbS films. It was demonstrated that mass spectrometry fragmentation of the molecular ion of the [Pb((NH2)2CS)2Cl2] compound leads to the formation of a lead sulphide ion. The obtained data confirm the formation of the lead-sulphur bonds in the inner sphere of the complex compound, which are fragments of the crystal structure of the prospective sulphide formed during the thermolysis of the comple

Electronic Structure of Doped La-Mn-O Perovskites

The electronic structure of the doped perovskite manganese oxides La$\text{}_{1-x}$Sr$\text{}_{x}$MnO$\text{}_{3}$ and La$\text{}_{1-x}$Ba$\text{}_{x}$MnO$\text{}_{3}$ has been investigated by X-ray photoelectron and X-ray emission spectroscopy. By comparing the O K$\text{}_{α}$ and Mn L$\text{}_{α}$ X-ray emission spectra with the valence band X-ray photoelectron spectra we could localize the Mn 3d and O 2p states into the valence band. Our data are compared with previous band structure calculations. The value of the Mn 3s splitting does not change with Sr-doping in the concentration region from x=0.0 till x=0.3. This shows that the doping holes have mainly oxygen p character. The large value of the splitting indicates that the 3d electrons are in the high-spin state