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Author(s):  
N.Yu. Kresova ◽  

Statement of the problem. Improving the quality of resolving difficult situations associated with teachers’ professional activity is possible only by studying those personal and situational variables that a) affect the resolution of difficult situations, b) are included in the personal structure and are available for comprehension. Tolerance for ambiguity (TA), being an intersubjective personality parameter, has all the necessary characteristics and can be considered when developing socio-psychological programs for teachers. However, its contribution to the resolution of difficult situations is currently not well understood. The purpose of the article is to show the place of TA in the structure of the personal component of situations related with pedagogical difficulties based on experimental data. Review of scientific literature on the problem. TA has many interpretations and is considered by researchers as a personality trait, as a metacognitive characteristic, as a socio-psychological attitude. Currently, without denying the multidimensionality of the concept, the emotional, cognitive and perceptual components of TA are considered. This means a return, at a new level, to the original idea of E. Frenkel-Brunswik, author of this psychological concept, who defined TA as an emotional-cognitive personality variable associated with the ambivalence of experiencing negative and positive properties of objects of reality. Sharing the views of E. Lehtinen and K. Merenluoto, we consider TA not as a stable, but as a dynamic characteristic. However, we have to admit that in this aspect the problem has been studied least of all. Therefore, studying the structure of the personal component of situations related with pedagogical difficulties, we consider as a separate task of studying TA as a structural component that develops in personal and situational interaction. Materials and methods. The research methodology is built in accordance with the idea of ​​L.S. Vygotsky and K. Levin, according to which any objective characteristic with which a person interacts becomes subjective through experience. The second foundation is understanding of the personality in the existential and humanistic approach as the leading instance that mediates any interaction with the world and oneself. The third foundation is a situational approach. The study involved 111 practicing teachers, who were offered five problem-solving tasks. Self-reports were processed using content analysis, the results were correlated with the data of personality techniques, including S. Badner’s TA test, and were subjected to factorization. Research results. The paper proves that TA refers to intersubjective parameters that affect the relationship between the personality and the situation. The TA factor turned out to be significant for all three groups of open, closed, and mixed models of interaction in difficult situations and is included in the structure of the personal component of situations related with pedagogical difficulties along with such factors as autonomy, communication, cognitive interest, openness, and creativity. Conclusion. The idea of ​K. Dahlbert that TA is most of all connected with the time factor was confirmed. During the study, it was found out that entering into different combinations within the personality structure, the TA parameter forms different configurations. Combined with the “orientation in time” factor, TA promotes an open type of interaction, while intolerance is associated with categoricalness and a closed type of communication in a situation of difficulty. Temporal competence enhances the personality ability to resolve a situation of difficulty through time resource management. At the same time, expectation of easiness and categoricalness lower the developmental potential of interaction in a situation of difficulty. In general, the high weight of TA in the structure of the personality component of situations related with pedagogical difficulties allows us to consider TA as a task and condition in the development of socio-psychological programs for practicing teachers.


Agronomy ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 24
Author(s):  
Jingli Yang ◽  
Jinnan Song ◽  
Byoung-Ryong Jeong

The significant effects of lighting on plants have been extensively investigated, but research has rarely studied the impact of different lighting directions for the strawberry plant. To understand the optimal lighting direction for better growth and development, this study investigated how strawberries respond to variations in the lighting direction to help fine-tune the growth environment for their development. We examined how the lighting direction affects plant morphophysiology by investigating plant growth parameters, leaf anatomy, epidermal cell elongation, stomatal properties, physiological characteristics, and expressions of runner induction-related genes (FaSOC1 and FaTFL1) and gibberellin (GA) biosyntheses-related genes (FaGA20ox2 and FaGA20ox4). In closed-type plant factory units, the rooted cuttings of strawberry (Fragaria × ananassa Duch.) ‘Suhlyang’ were subjected to a 10-h photoperiod with a 350 μmol∙m−2∙s−1 photosynthetic photon flux density (PPFD) provided by light-emitting diodes (LEDs) from three directions relative to the plants: top, side, and bottom. Our results demonstrated that the side lighting profoundly promoted not only morphophysiology, but also runner formation, by upregulating photosynthesis in strawberries. Side lighting can bring commercial benefits, which include reduced economic costs, easier controllability, and harmlessness to plants. This will help provide new insights for the propagation of the most commonly cultivated strawberries in South Korea.


2021 ◽  
Vol 7 (12) ◽  
pp. 312-345
Author(s):  
A. Nemtsov

This article concluded the presentation of the results obtained during a comparative study of students of technical universities: MSTU, MADI and MIREA. These results were received, using a sociological questionnaire with closed-type questions. The questionnaire contained 9 main thematic blocks: 1. Professional choice; 2. Profession; 3. Study and education; 4. Educating; 5. Professional and personal competence; 6. Teachers; 7. Communication of students; 8. Humanitarian knowledge in the training of an engineer; 9. Intelligentsia. The article is primarily devoted to the presentation of the results of a comparative study of technical universities: MSTU, MADI and MIREA. In it we will present data obtained using the last four blocks of the sociological questionnaire: 6. Teachers; 7. Communication of students; 8. Humanitarian knowledge in the training of an engineer; 9. Intelligentsia. At the same time, we also want to supplement them with the results of our previous studies of MSTU students. In particular, we will continue to consider the psychological characteristics found in students studying at the Bauman Moscow State Technical University, at the faculties of Aerospace and Engineering Business and Management.


Author(s):  
O. O. Borshch ◽  
O. V. Borshch ◽  
M. М. Fedorchenko

The aim of this article was to compare the quality of manure in different ways of its removal and storage for environmental pollution. The research was conducted in three farms of Kyiv region with different methods of manure removal, storage and processing: using deep long-lasting straw litter (manure removal three times a year); with manure processing in a closed bioreactor-fermenter of the closed type; with manure settling in open lagoons. In all farms, the average annual livestock is 400 dairy cows. Samples for analysis of manure (processing waste) were taken the day before export to the field. The average daily air temperature during sampling was +21.3 °C. In terms of the sum of nitrogen, phosphorus and potassium content in 1 kg of fertilizers, the highest indicators were observed for the variant of keeping in deep litter – 7.69 g. intermediate bioreactors-fermenters observed intermediate values – 6.69 g. The highest moisture content of manure was during storage in the lagoon – by 19.71 % and 1.38 % more compared to the option on deep litter and in the bioreactor-fermenter. The lowest number of weed seeds was for storage in deep litter – 84 pcs/ml, which is 19 and 23 pcs/ml more than for processing in a bioreactor-fermenter and storage in the lagoon. The indicator of weed germination, which is very important from the point of view of future use of manure as an organic fertilizer in general, had positive indicators for all storage (processing) options. The germination rate of weeds for storage in deep litter was 5.72 %, which is 3.14 and 4.42 % less than for processing in a bioreactor-fermenter and in the lagoon. The largest emissions of N2O (nitric oxide) were in the variant of manure storage in the lagoon – 40712.45 kg, which is 39781.88 kg more than in the options of storage in deep litter and in the bioreactor-fermenter. The content of nitrogen, phosphorus, potassium and organic matter of fertilizer obtained from 1 kg of manure from deep litter, exceeded similar indicators of other methods of storage due to daily application of straw.


2021 ◽  
pp. 1-8
Author(s):  
Hyun Woo Cha ◽  
Byeong-Seon An ◽  
Cheol-Woong Yang

In situ liquid cell transmission electron microscopy (TEM) is a very useful tool for investigating dynamic solid–liquid reactions. However, there are challenges to observe the early stages of spontaneous solid–liquid reactions using a closed-type liquid cell system, the most popular and simple liquid cell system. We propose a graphene encapsulation method to overcome this limitation of closed-type liquid cell TEM. The solid and liquid are separated using graphene to suspend the reaction until the graphene layer is destroyed. Graphene can be decomposed by the high-energy electron beam used in TEM, allowing the reaction to proceed. Fast dissolution of graphene-capped copper nanoparticles in an FeCl3 solution was demonstrated via in situ liquid cell TEM at 300 kV using a cell with closed-type SiNx windows.


2021 ◽  
Vol 28 (1) ◽  
Author(s):  
Ehud Hrushovski ◽  
Krzysztof Krupiński ◽  
Anand Pillay

AbstractWe study amenability of definable groups and topological groups, and prove various results, briefly described below. Among our main technical tools, of interest in its own right, is an elaboration on and strengthening of the Massicot-Wagner version (Massicot and Wagner in J Ec Polytech Math 2:55–63, 2015) of the stabilizer theorem (Hrushovski in J Am Math Soc 25:189–243, 2012), and also some results about measures and measure-like functions (which we call means and pre-means). As an application we show that if G is an amenable topological group, then the Bohr compactification of G coincides with a certain “weak Bohr compactification” introduced in Krupiński and Pillay (Adv Math 345:1253–1299, 2019). In other words, the conclusion says that certain connected components of G coincide: $$G^{00}_{{{\,\mathrm{{top}}\,}}} = G^{000}_{{{\,\mathrm{{top}}\,}}}$$ G top 00 = G top 000 . We also prove wide generalizations of this result, implying in particular its extension to a “definable-topological” context, confirming the main conjectures from Krupiński and Pillay (2019). We also introduce $$\bigvee $$ ⋁ -definable group topologies on a given $$\emptyset $$ ∅ -definable group G (including group topologies induced by type-definable subgroups as well as uniformly definable group topologies), and prove that the existence of a mean on the lattice of closed, type-definable subsets of G implies (under some assumption) that $${{\,\mathrm{{cl}}\,}}(G^{00}_M) = {{\,\mathrm{{cl}}\,}}(G^{000}_M)$$ cl ( G M 00 ) = cl ( G M 000 ) for any model M. Secondly, we study the relationship between (separate) definability of an action of a definable group on a compact space [in the sense of Gismatullin et al. (Ann Pure Appl Log 165:552–562, 2014)], weakly almost periodic (wap) actions of G [in the sense of Ellis and Nerurkar (Trans Am Math Soc 313:103–119, 1989)], and stability. We conclude that any group G definable in a sufficiently saturated structure is “weakly definably amenable” in the sense of Krupiński and Pillay (2019), namely any definable action of G on a compact space supports a G-invariant probability measure. This gives negative solutions to some questions and conjectures raised in Krupiński (J Symb Log 82:1080–1105, 2017) and Krupiński and Pillay (2019). Stability in continuous logic will play a role in some proofs in this part of the paper. Thirdly, we give an example of a $$\emptyset $$ ∅ -definable approximate subgroup X in a saturated extension of the group $${{\mathbb {F}}}_2 \times {{\mathbb {Z}}}$$ F 2 × Z in a suitable language (where $${{\mathbb {F}}}_2$$ F 2 is the free group in 2-generators) for which the $$\bigvee $$ ⋁ -definable group $$H:=\langle X \rangle $$ H : = ⟨ X ⟩ contains no type-definable subgroup of bounded index. This refutes a conjecture by Wagner and shows that the Massicot-Wagner approach to prove that a locally compact (and in consequence also Lie) “model” exists for each approximate subgroup does not work in general (they proved in (Massicot and Wagner 2015) that it works for definably amenable approximate subgroups).


Vestnik MGSU ◽  
2021 ◽  
pp. 1541-1548
Author(s):  
Elena V. Zolotareva ◽  
Ekaterina A. Korenkova

Introduction. A public garden or park improvement project should arise from a scientifically grounded study of the territory and proceed from the further development of this object. The aim of the study is to analyze the territory of public gardens in the city of Orel to determine the influence of types of spatial structures on the features of the functioning of a landscape object, to predict the stability of the studied landscape and to assess the dynamics of urban ecosystems based on the state of tree vegetation. Tasks: to analyze the placement and ratio of types of spatial structures on the objects under study; to make an aesthetic and sanitary-hygienic assessment of the landscape; to monitor the state of woody vegetation at the facilities. Materials and methods. For the development of scientifically based design of sustainable urban ecosystems and the reconstruction of urban objects of landscape architecture, a method is proposed for studying the territory of squares along the selected contours of types of spatial structures (TPS), which allows us to identify positive and negative factors affecting the development of design solutions. When analyzing the TPS of the investigated squares, satellite images of objects were used. Results. As studies of the type of spatial structure have shown, in most of the investigated squares, indoor TPS prevails; on average, this type of spatial structure is established on 41.8 % of the square of squares. The location of open and semi-open TPS is haphazard and random. The lowest aesthetic score was established for the closed TPS-21.9 points, which is due to the difficulty of identifying species points in such spaces, poor visibility, inhibition of the growth of not only trees, but also the ground vegetation cover, which in most cases is represented by a sparse grass stand with poor species diversity. When conducting a sanitary and hygienic assessment of various TPSs, it was found that a closed TPS also corresponds to the worst grade (2.5 class), which is associated with a decrease in the suitability for performing sanitary and hygienic functions in weakened and damaged plants. Conclusions. For the majority of public gardens in the city of Orel with a plant age close to the maximum in urban conditions, a closed type of spatial structure is characteristic. The closed type of spatial structure led to a decrease not only in attractiveness, but also in the performed sanitary and hygienic role of landscape architecture objects.


2021 ◽  
Vol 92 ◽  
pp. 108877
Author(s):  
Justas Šereika ◽  
Paulius Vilkinis ◽  
Nerijus Pedišius

Energies ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7890
Author(s):  
Shin-Kyu Choi ◽  
Tae-Hyuk Kwon

Debris flows are capable of flowing with high velocities and causing significant economic and infrastructural damage. As a hazard mitigation measure, physical barriers are frequently installed to dissipate the energy of debris flows. However, there is a lack of understanding on how barriers affect and interact with debris-flow behavior (e.g., velocity and volume). This study investigated the changes in debris-flow characteristics depending on the installation location of barriers. Mt. Woomyeon, which is located in Seoul, Korea, was the site of a major debris-flow event in 2011. This study modeled this event using DAN3D, numerical software based on smoothed particle hydrodynamics (SPH). Our numerical approach assessed changes in debris-flow behavior, including velocity and volume, as the debris flow interacts with four closed-type barriers installed at separate points along the flow path. We used DAN3D to model the barriers via terrain elevation modifications. The presence of a closed-type barrier results in the reduction in the debris-flow velocity and volume compared to when no barrier is present. Most notably, the closer a barrier is installed to the debris source, the greater the velocity decrease. By contrast, a barrier that is constructed further downstream allows the debris flow to undergo entrainment-driven growth before confronting the barrier, resulting in a larger debris deposition volume that can often cause overflow, as shown at our particular study site. The presented results highlight the effectiveness of barriers as a method of hazard mitigation by providing insight into how such installations can alter debris-flow behavior. In addition, the findings can provide a reference for future debris-flow barrier designs, increasing the effectiveness and efficiency of such barrier systems.


2021 ◽  
Vol 22 (21) ◽  
pp. 12019
Author(s):  
Jingli Yang ◽  
Byoung Ryong Jeong

Light is one of the most important factors that influence plant growth and development. This study was conducted to examine how lighting direction affects plant morphophysiology by investigating plant growth parameters, leaf anatomy, epidermal cell elongation, stomatal properties, chloroplast arrangement, and physiological changes. In closed-type plant factory units, the rooted cuttings of two chrysanthemum (Chrysanthemum morifolium Ramat.) cultivars, ‘Gaya Glory’ and ‘Pearl Egg’, were subjected to a 10 h photoperiod with a 300 μmol∙m−2∙s−1 photosynthetic photon flux density (PPFD) provided by light-emitting diodes (LEDs) from three directions relative to the plant including the top, side, and bottom. Compared to the top or bottom lighting, the side lighting greatly enhanced the plant growth, improved the leaf internal structure and chloroplast arrangement, induced small stomata with a higher density, and promoted stomatal opening, which is associated with an increased stomatal conductance and photosynthetic efficiency. It is worth noting that the side lighting significantly enhanced the induction of branching and flowering for both cultivars., The plants grown with side lighting consistently exhibited the greatest physiological performance. We conclude that the lighting direction had a profound effect on the morphophysiological characteristics of chrysanthemum, and that side lighting dramatically promoted their growth and development, especially in their branching and flowering.


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