Preliminary results of the application of two methods for studying soil diatoms

Author(s):  
Tatiana A. Buevich ◽  
Dmitry A. Chudaev ◽  
Maria A. Gololobova

Preliminary results of applying two methods for isolating diatoms from the soil that were used during the study of soil algae of the Zvenigorod Biological Station of Moscow State University are presented in this paper. The authors compare the classical method of moist chambers with fouling glasses and the method of isolating diatoms from the soil using moist plates with gauze placed on the surface of the soil. The methods were used to isolate diatoms from soil samples taken in two biotopes – in a birch forest and in a river floodplain. It has been shown that the main advantage of the method of fouling glasses is the reception of additional data on the active life of algae in the soil, since many algae form clones on the surface of the glass as a result of cell division. At the same time, with the help of gauze cultures, it is possible to obtain preparations that contain more material of better quality, since the shells of diatoms can be better cleaned from organics using this method. Both methods have their advantages and disadvantages, and to obtain more complete results, the authors recommend using them together.

2021 ◽  
Vol 10 (34) ◽  
Author(s):  
V.P FROLOV ◽  

Purpose : To determine the conditions and prospects of traditional and innovative education. Indicate the principles and patterns of the development of educational system. Consideration of established traditions, definition of modern methodology and methods of teaching history corresponding to the realities of a changing society, identification of the specifics of this discipline in the context of technical education based on the analysis of the pedagogical experience of Moscow State University of Civil Engineering. Methods: Comparison, observation, generalization, ascent from the abstract to the concrete. Historical, problem-chronological, discourse analysis, which makes it possible to determine the prospects for the development of pedagogy. Results: The analysis demonstrated the importance of rich experience in teaching history at a technical university and the prospects for traditional and innovative development of education; the advantages and disadvantages of the electronic educational process are specified. Modern education requires the integration of traditional and distance technologies, the creation of an effective system of innovative education, management and regulation of high-quality testing of the innovation flow. Conclusions: Based on the pedagogical experience of the National Research Moscow State University of Civil Engineering, the article analyzes significant teaching and training methods in the modernization of the education system, the use of digital technologies and traditional education, which retains its importance with the rapid development of innovations.


2020 ◽  
Vol 2 (2) ◽  
pp. 117-128 ◽  
Author(s):  
Marina V. Valeeva

Open access gives free access to research publications and today, about 23% of scientific publications in Russia are in the public domain. How and to what extent an open access publication affects citation - issues that have been the subject of debate for quite some time, and of course, the type of open access in which the article is posted plays an important role here. Now, the most common are the “golden” and “green” types of open access, each of which has both advantages and disadvantages. The article presents the results of a study conducted in 2018, during which the degree of using the capabilities of Gold Open Access and Green Open Access by universities of the 5-100 project, as well as Moscow State University, St. Petersburg State University and the RAS institutes (namely, the Ural Branch of the RAS and the SB RAS). The analysis included articles located in Scopus - Gold Open Access and Green Open Access. Also, as part of the study, the authors analyzed the case of the Ural Federal University named after B.N. Yeltsin, in the framework of which the success of the institutional repository was evaluated Electronic scientific archive of Ural Federal University (elar.urfu).


2006 ◽  
Vol 30 (2) ◽  
pp. 259-279 ◽  
Author(s):  
Aleksandr E. Kibrik

For forty years, linguistic fieldwork on the minority languages of Soviet and post-Soviet States has been conducted by members of the Philological Faculty of Moscow State University. The present paper describes the “Moscow approach” to team-based fieldwork, including the history, problems, advantages and disadvantages of this unique venture. The conclusion is that the advantages of collective fieldwork outweigh the disadvantages, but that there are several requirements that must be in place in order for the method to be effective. These include a clear organizational scheme, several available language consultants, and supportive attitudes on the parts of all participants. In recent years, a combination of researcher specialization and cross-training in multiple sub-disciplines has become an increasingly important component of the collective field trips.


2015 ◽  
Vol 13 (3) ◽  
pp. 3-10 ◽  
Author(s):  
M.L. Semenovich ◽  
N.G. Manelis ◽  
A.V. Khaustov ◽  
A.I. Kozorez ◽  
E.V. Morozovq

The experts of the Center for Psychological, Medical and Social Support to Children and Adolescents of the Moscow State University of Psychology and Education conducted the pilot approbation of The Assessment of Basic Language and Learning Skills — Revised (ABLLS_R). The method is used for diagnostics and assessment of the functional skills and speech development level of children and adults with developmental delays or autism spectrum disorders in order to develop individual education plan and to assess teaching efficiency. The first part of the published description contains the history of the test development, goals and conditions of the assessment, its advantages and disadvantages, as well as the list of areas of skills for assessment and ways of collecting data. The pilot approbation of the Assessment of Basic Language and Learning Skills — Revised (ABLLS_R) was conducted by the experts of the Center for Psychological, Medical and Social Support to Children and Adolescents of the Moscow State University of Psychology and Education in 2014.


Author(s):  
Andrey Vasil'evich Karagodin

The article summarizes preliminary results related to the development and operation of historical thematic website “Simeiz. Guide to Old Dachas”. The website was created by the author and his colleagues in 2019 as a part of a workshop at the Department of Source Studies of the Lomonosov Moscow State University History Faculty. The workshop aimed at studying the history of the southern coast of Crimea in the late 19th - early 20th centuries. The stages and preliminary results of this work are considered in the context of current discussions about the “digital turn” in history. The author analyses the reasons for creating the historical website, its structure, development stages, specific features of its content, database creation and crowdsourcing.  It is stated that the website development was the first important step of the whole research project, its “driver”. Moreover, besides a new form of historical knowledge dissemination, the work on the site provided for setting new source and analytical tasks that is to increase the information impact of sources and get new opportunities for processing the electronic database. These results may be of interest to historians who run similar historical projects.


Author(s):  
Marina F. Dorokhova

The species composition of soil algae and cyanobacteria in landscapes with different types of land use was studied for the first time on the territory of the Lomonosov Moscow state University educational and scientific station (Kaluga region). 125 species and intraspecific taxa of algae and 35 species of cyanobacteria were found. The specificity of algal-cyanobacterial communities in soils under different types of forest, in clearings of different ages and on arable land was revealed. In a field experiment, the effect of hydrocarbon fuel contamination (gasoline, kerosene, and diesel fuel) on the algal-cyanobacterial communities of sod-podzolic soils was studied. It is shown that with the same primary load of pollutants, their toxicity to algae and cyanobacteria and the rate of recovery of algal-cyanobacterial communities depends on the type of land use of the territory, and with the same type of land use – on the water regime of soils. In the same soil, the specific of the pollutant also affects the recovery of algal-cyanobacterial communities. Data on the composition of algae and cyanobacteria successfully complement information about the biological activity of soils obtained by other methods.


1972 ◽  
Vol 68 (2_Supplb) ◽  
pp. S285-S309 ◽  
Author(s):  
Kurt Ahrén ◽  
Per Olof Janson ◽  
Gunnar Selstam

ABSTRACT This paper discusses in vivo and in vitro ovarian perfusion systems described so far in the literature. The interest is not focussed primarily on the results of these studies but rather on the advantages and disadvantages of the techniques and methods used. Another part of the paper summarizes the points which are most important, in our opinion, to take into consideration when developing an in vitro perfusion technique of the ovary. The last part of the paper gives a description of and some preliminary results from an in vitro perfusion system of the rabbit ovary which is under development in this laboratory.


Sign in / Sign up

Export Citation Format

Share Document