Issues of the Cenozoic Stratigraphy of Western Kamchatka and the stages of evolution of the foraminifera paleocommunities

Author(s):  
S. I. Bordunov ◽  
T. V. Dmitrieva ◽  
N. A. Fregatova

The study of the paleocommunities of foraminifera of the reference section of the Paleogene-Neogene of the Kvachin Bay in Western Kamchatka made it possible, based on the qualitative composition and quantitative ratios of the species encountered, to identify 13 layers with foraminifera corresponding to certain section intervals and to establish their successive change. Layers with foraminifera are combined into 4 complex zones. In terms of distribution, the identified zones are regional and can traced in adjacent regions. The change in paleocommunities corresponds to the process of evolutionary development of foraminifera, as well as a change in paleoenvironments. The noted changes in the composition and structure of zonal communities reflected in a certain staged development of microfauna.

Author(s):  
Валентина Володимирівна Яценко

The article provides insights into the nature and specifics of social responsibility of higher education institutions in the context of transformational economy. In particular, it is argued that in the frameworks of structural and innovative transformations, technogenic safety as a readiness to be socially responsible, contributes to implementing the idea of integration of philosophical, legal, sociological and pedagogical approaches to enhance the performance of modern higher education institutions. The most critical factors in building social responsibility are the focus on professional responsibility, autonomy of higher education institutions, as well as the compliance with the principle of freedom of choice and responsibility in providing dual education services and applied research. The hypothesis of the study is the statement that in the context of structural and innovative transformations, the gnoseological nature of social responsibility of higher education institutions is embodied in gradual building of a technogenic safety paradigm. The research objective is to explore the specifics of social responsibility of higher education institutions from the perspectives of structural and innovative transformations. To attain the study agenda, the following research methods have been employed: historical analysis – to track successive changes in social responsibility concepts in the area of higher education subject to evolutionary development of society; analysis and synthesis techniques – to reveal the content and structure of a social responsibility framework. The findings demonstrate that a technological background to facilitate successive change in the structure of social responsibility elements is the following chain relationship: goals – knowledge – methods – activities. In this chain, goals are considered as expected professional performance outcomes; knowledge, methods and activities – as the capacity (readiness) of higher education institutions to implement effective professional technologies to attain the best results along with meeting all stakeholders’ demands. The summary concludes that the gnoseological implications in building social responsibility in higher education institutions affect the content of goals and the qualitative variety of tools which rely upon worldview and cultural societal values, as well as moral principles and ethical standards of educational activities.


2014 ◽  
Vol 284 ◽  
pp. 70-73
Author(s):  
Daria Śmigiel-Kamińska ◽  

A trace evidence in the form of a fiber or textile product gains greater evidential usefulness if it is damaged due to the use or destructive factors. Hence, an intensive examination of destructive processes influenced by either physical or chemical factors may significantly help in determining the type of a product, circumstances and the course of a criminal incident. The aim of conducted studies was to test the influence of selected corrosive substances on morphology of textile products and fibres, and to conclude whether despite the changes inflicted by the used substances, there was a possibility of subjecting the fibres to identification and comparative tests in order to objectively conclude about the course of an incident in its criminal aspect. The results of conducted studies allowed to characterize the influence of used corrosive substances on textile products and single fibres, varying in qualitative composition and structure. Undoubtedly, the present study does not cover all the aspects of undertaken issue and opens the door to further considerations in the context of observed chemical reactions. Such studies would likely contribute to developing new research methodologies of fibrę microtraces analyses.


2021 ◽  
Vol 56 (1) ◽  
pp. 71-88
Author(s):  
M. M. Pevzner ◽  
F. E. Maksimov ◽  
T. D. Karimov ◽  
S. B. Levchenko ◽  
R. I. Nechushkin ◽  
...  

2020 ◽  
Vol 3 (117) ◽  
pp. 253-262
Author(s):  
T.Ia. Sátbaı ◽  

The article examines the structure and composition of creative unions in Kazakhstan in the post-war years. In the post-war period, creative unions of writers, artists, architects and composers continued to function in the country. These unions were created in the 1930s, that is, before the great Patriotic war. In 1957–1958, the Union of journalists and cinematographers was additionally created, so the number of creative unions in the Republic reached six. The quantitative and qualitative composition of Creative Unions in Kazakhstan grew rather slowly. The reason for this was the constant lack of professional staff, and secondly, representatives of traditional Kazakh art were excluded from the activities of creative Unions, for the simple reason that they were not professionals by Soviet standards. In Soviet times, poets-improvisers, representatives of oral professionals by Soviet standards. In Soviet times, poets-improvisers, representatives of oral literature, masters of applied arts, melodists-composers were not recognized as professionals. The article also examines the national composition of the creative unions of the Republic. Мақалада соғыстан кейінгі жылдардағы Қазақстан шығармашылық одақтарының құрамы мен құрылымы қарастырылады. Соғыстан кейінгі жылдары жазушылардың, суретшілердің, композиторлар мен сәулетшілердің шығармашылық одақтары жұмыс жасап жатты. Бұл одақтар 30-жылдары, яғни соғысқа дейінгі жылдары құрылған болатын. 1957–58 жылдары бұларға қосымша журналистер мен кинематографистер одағы құрылды, сөйтіп олардың саны алтауға жетті. Қазақстан шығармашылық одақтарының сандық және сапалық құрамы баяу өсті. Өйткені маман кадрлар тұрақты жетіспеді, екіншіден, кеңестік өлшемдер бойынша дәстүрлі қолданбалы қазақ қол өнерінің өкілдері кәсіби мамандар болып саналмағандықтан шығармашылық одақтар қызметінің аясынан тысқары қалды. Кеңес жылдары суырыпсалма ақындар, ауыз әдебиетінің өкілдері, қолданбалы өнер, мелодист-композиторлар кәсіби мамандар болып саналмады. Мақалада сондай-ақ республика шығармашылық Одақтарының ұлттық құрамы қарастырылады.


Author(s):  
A. F. Marshall ◽  
J. W. Steeds ◽  
D. Bouchet ◽  
S. L. Shinde ◽  
R. G. Walmsley

Convergent beam electron diffraction is a powerful technique for determining the crystal structure of a material in TEM. In this paper we have applied it to the study of the intermetallic phases in the Cu-rich end of the Cu-Zr system. These phases are highly ordered. Their composition and structure has been previously studied by microprobe and x-ray diffraction with sometimes conflicting results.The crystalline phases were obtained by annealing amorphous sputter-deposited Cu-Zr. Specimens were thinned for TEM by ion milling and observed in a Philips EM 400. Due to the large unit cells involved, a small convergence angle of diffraction was used; however, the three-dimensional lattice and symmetry information of convergent beam microdiffraction patterns is still present. The results are as follows:1) 21 at% Zr in Cu: annealed at 500°C for 5 hours. An intermetallic phase, Cu3.6Zr (21.7% Zr), space group P6/m has been proposed near this composition (2). The major phase of our annealed material was hexagonal with a point group determined as 6/m.


Author(s):  
J.K. Weiss ◽  
M. Gajdardziska-Josifovska ◽  
M. R. McCartney ◽  
David J. Smith

Interfacial structure is a controlling parameter in the behavior of many materials. Electron microscopy methods are widely used for characterizing such features as interface abruptness and chemical segregation at interfaces. The problem for high resolution microscopy is to establish optimum imaging conditions for extracting this information. We have found that off-axis electron holography can provide useful information for the study of interfaces that is not easily obtained by other techniques.Electron holography permits the recovery of both the amplitude and the phase of the image wave. Recent studies have applied the information obtained from electron holograms to characterizing magnetic and electric fields in materials and also to atomic-scale resolution enhancement. The phase of an electron wave passing through a specimen is shifted by an amount which is proportional to the product of the specimen thickness and the projected electrostatic potential (ignoring magnetic fields and diffraction effects). If atomic-scale variations are ignored, the potential in the specimen is described by the mean inner potential, a bulk property sensitive to both composition and structure. For the study of interfaces, the specimen thickness is assumed to be approximately constant across the interface, so that the phase of the image wave will give a picture of mean inner potential across the interface.


2019 ◽  
Vol 326 (3) ◽  
pp. 76-78
Author(s):  
V.L. Nalobova ◽  
◽  
N.S. Opimah ◽  
M.V. Nalobova ◽  
I.V. Haponenka ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document