Elements In Different Components Research Articles

ДИДАКТИЧНІ ОСОБЛИВОСТІ СТРУКТУРИ ТА ОРГАНІЗАЦІЇ УРОКУ ІНТЕГРОВАНОЇ НАВЧАЛЬНОЇ ДИСЦИПЛІНИ

The article examines the current scientific problem - conceptual changes in the system of general secondary education due to integration processes in the basic science of natural sciences. They consist in actualizing the creation in the educational environment of integrated courses of natural sciences, the formation of which is carried out on a new basis. Integration processes by academic disciplines with their specific objects of study, which include elements of different components of disciplines, considered comprehensively and qualitatively. The methodology of teaching natural sciences has accumulated a significant number of problems that need to be addressed. Among them are such as the problem of integration of an extensive system of scientific knowledge, updating of methods, tools and forms of organization of education. As a result of the integration processes in fundamental natural science, integrated natural science courses, the formation of which is carried out on a new basis, again become relevant and in demand in pedagogy. Integrative processes involve the creation of integrated disciplines, which include elements of individual natural components of the disciplines, considered comprehensively and qualitatively. In the context of the implementation of integrated disciplines in the educational process, the study of the lesson as the main form of organization of the educational process and its features becomes relevant. It is established that the results of research by M. Danilov and M. Skatkin on the terminology and content of the concept of "lesson", which is represented by a holistic and complex system that includes the acquisition of knowledge, development of mind and worldview, education of feelings and personal qualities, formation of competencies, evaluative judgments, etc. In addition, the article finds that the structural construction of the lesson resembles a schematic construction of scientific knowledge: initial facts → problem statement → hypothesis → construction of an abstract model → introduction of a system of concepts, laws, principles → theoretical derivation of consequences and their experimental verification. The main form of organization of educational classes of the modern education system continues to be a lesson, both for the usual academic discipline and for the integrated academic discipline. But in accordance with the goals and objectives of the integrated discipline, the lesson of the integrated discipline has its own specifics that determine its structure and content. The article shows the features that determine this specificity. The author points out that the systematic construction of the lesson of integrated academic discipline is based on the theory of problem-based learning M. Makhmutov. Based on this theory, the objectives of the lessons of the integrated course of natural orientation and teaching aids are formulated, which include the following: integrative task, interdisciplinary problem situation, research and experimental projects, complex practice-oriented tasks, educational experiment and more. The article considers these tools and gives practical examples of their implementation. Based on the results of the study, conclusions are made and directions for further research on this topic are proposed. Key words: integrated academic discipline, lesson, organization of educational process, natural science competence, integrated learning.

Elemental composition of soils and bottom sediments in streams of the eastern macroslope of the Subpolar Urals

A study is made of the lead, zinc, copper, manganese, chromium, nickel and iron distribution patterns in soils and bottom sediments of streams flowing on the eastern macroslope of the Subpolar Urals. Results were subjected to a statistical processing to show a wide variation in content levels of metals due to a set of lithological and landscape-geochemical factors. The study revealed a correlation of anomalously high concentrations in soils with occurrence zones of ore mineral resources. Particular attention is paid to the lateral differentiation of lead. It is shown that its accumulation occurs in accumulative landscapes of river valleys, and its increased content is observed in bottom sediments during deposition on the sorption barrier. It is found that formation of bottom sediments showing increased contents of metals is associated with sedimentation characteristics at the time when the flow velocity of rivers decreases at the transition from mountain landscapes to lowland landscapes. The accmulation of elements in different components of migration series is analyzed to reveal regular differences in elemental composition of soils of middle- and low-mountain, low-mountain/ piedmont and submontane-lowland landscapes and to permit the description of the background geochemical associations. Regional percent abundances are calculated and compared with results obtained for neighboring areas of the West Siberian Plain. The postulate concerning the determining role of the surrounding mountains in the formation of the trace element composition of soils in Western Siberia. A deficit of copper and zinc content in bottom sediments is pointed out. It is concluded that dissolved forms are dominant in the aquatic transport of heavy metals.

Analyzing ICT Issues in Humanitarian Supply Chain Management: A SAP-LAP Linkages Framework

This study sets out to highlight the importance of information and communications technology (ICT) in the humanitarian supply chain management (HSCM) and to understand the present status of use of ICT in the HSCM in India. The study develops a situation-actors-process, learning-action-performance (SAP-LAP) linkages framework in order to analyse various learning issues related to enhancing the use of ICT in HSCM, particularly in the Indian context. The developed framework considers the inter-relationships amongst all elements of different components of the SAP-LAP framework by developing assessment, self-interaction and cross interaction matrices. The results suggest that strategic and proactive planning is essential in enhancing the use of ICT in HSCM. This may motivate the actors to introduce education or training programs to increase awareness around the importance of ICT in HSCM. These results also support the view that the role of government is crucial in enhancing the use of ICT in HSCM. An effective, transparent workflow policy, allied with the use of knowledge management system and donor commitment, would maximise the benefits of ICT and would further enhance the performance of the HSCM. This study is a pioneering attempt, containing a qualitative research foundation and reflective observation analysis, to assess various strategic issues used to enhance the use of ICT in HSCM in order to improve the efficiency of relief operations.

Influence of geographic populations on the elemental composition of pine phytomass and soil

In the long-term (30 years) field provenance experiment (Novosibirsk, Russia) with Scotch pine Pinus sylvestris L. from different geographical populations, X-ray fluorescence analysis with synchrotron radiation (XRFSRA) was used to estimate the concentration of 16 chemical elements in different components of the phytomass collected from living trees and the soil under them. The statistically significant influence of the “geographical population” factor on the elemental composition of different components of phytomass and soil was shown. A relationship between chemical properties and morphometric traits was found.

Criteria for mixing rules application for inhomogeneous astrophysical grains

The analysis presented in this paper verifies which of the mixing rules are best for real components of interstellar dust in possible wide range of wavelengths. The Discrete Dipole Approximation (DDA) method with elements of different components with various volume fractions has been used. We have considered six materials: ice, amorphous carbon, graphite, SiC, silicates and iron; and the following mixing rules: Maxwell-Garnett, Bruggeman, Looyenga, Hanay and Lichtenecker, which must satisfy rigorous bounds. The porous materials have also been considered. We have assumed simplified spatial distribution, shape and size of inclusions. The criteria given by Draine have been used to determine the range of wavelengths for the considered mixtures in order to calculate the Qext using the DDA. From all the chosen mixing rules for the examined materials in majority of cases (13 out of 20), the best results have been obtained using the Lichtenecker mixing rule. In five cases, this rule is better for some volume fraction of inclusions.

Nonperturbative description of deep inelastic structure functions in light-front QCD

In this paper, we explore the deep inelastic structure functions of hadrons nonperturbatively in an inverse power expansion of the light-front energy of the probe in the framework of light-front QCD. We arrive at general expressions for various structure functions as the Fourier transform of matrix elements of different components of bilocal vector and axial vector currents on the light-front in a straightforward manner. The complexities of the structure functions are mainly carried by the multi-parton wave functions of the hadrons, while the bilocal currents have a dynamically dependent yet simple structure on the light-front in this description. Further, the factorization theorem and the scale evolution of the structure functions are presented in this formalism by using old-fashioned light-front time-ordered perturbation theory with multi-parton wave functions. Nonperturbative QCD dynamics underlying the structure functions can be explored in the same framework. Once the nonperturbative multi-parton wave functions are known from low-energy light-front QCD, a complete description of deep inelastic structure functions can be realized.

Effect of crop-weed competition on the mineral structure of wheat crop

The present study was undertaken to understand the translocation of nitrogen and phosphorus through crop plants at different stages of growth as affected by weed infestation. The profile distribution of these elements in different components of wheat has been studied at the vegetative, flowering and fruiting stages of crop growth. It was found that the reduction in the concentration of nitrogen and phosphorus in the wheat plant started at the vegetative stage itself due to interference from weeds in the weedy stand and the maximal reduction was at the flowering stage (perhaps due to the maximal density of weeds at this stage). From the above investigation it is concluded that weeds growing along with crop plants significantly affect the mineral status of the crop as well as uptake, return and retention by wheat plants.

The structure of orthodox unions of groups

By an "orthodox union of groups", or "orthogroup", we mean a semigroup S such that (i) S is a union of groups, and (it) the set E of idempotent elements of S is a subsemigroup of S. A~y band (idempotent semigroup) is an orthogroup. Every orthogroup S is a semilattice Y of simple orthogroups S (~ e Y), and every simple o.mthogroup is a rectangula~ group", by which we mean the direct product of a group and a rectangular band. But the manner in which the elements of different components S can multiply is extremely complicated. Part of this E is a complexity can be by-passed by assuming that SH. Fantham given band. This is the point of view of P. H [3], who gave an ingenious structure theorem for orthogroups in 1960. An alternative structure theorem was given by G. B. Preston in 1961, but was never published.