Theoretical & Applied Science

1-22

Authors: Rolly Q. Abarro ; Joel E. Asuncion

The study determined the cognitive and affective effects of metacognitive activities. Specifically, it sought answers to define the subjects’ chemistry performance, motivation, and scientific attitude before and after the exposure to the intervention, to find out the significant improvement in the given parameters, and to design improved instructional activities in the light of the findings. The quasi-experimental study used the one group pretest-posttest design to answer the problems posed. At the outset, the cognitive and affective levels of the 42 subjects were determined. To find out the cognitive effects, a chemistry performance test developed by the researcher and validated by panel of experts was used. Chemistry Motivation Questionnaire and Science Attitude Inventory II were used to determine the subjects’ affective status. After the intervention period, the subjects’ exit competence was determined and differentiated from the pretest level. Through the t-statistic for paired observations, the difference between the tests was computed for the level of significance. As the final output, an enhanced instructional guide on integrating activities for metacognitive development among chemistry students was designed. There are seven metacognitive activities that were utilized in the present research undertaking, namely: Learning Portfolio (LP), Metacognitive Planning/Feedback/Discussion, Metacognitive Wrapper, Session Reflection Log, Goal-setting, Metacognitive Note-taking, and Learning Community. The activities correspond to specific episodes of the instructional cycles and were tweaked with the intent of purposefully helping students develop metacognitive skillfulness. It is recommended that related studies be explored to determine the effect of a prolonged exposure of the students to the different metacognitive activities. Chemistry teachers may also adopt activities which are known to effectively assist students in conceptual development of abstract concepts in Chemistry and if situations permits, subjects be

30-35

Authors: Nazirjon Karimkhodjaev ; Nilufar Nazirjanovna Turakhujayeva ; Rustambek Husanboy o’gli Mirzakarimov

This article highlights the issues of studying and mastering the complex theoretical foundations of special subjects for students and undergraduates of higher educational institutions. At the same time, a wide application of the information technology system is proposed and a scheme for studying and mastering the theoretical foundations of special subjects in distance learning has been developed.

42-47

Authors: Adilbek Agabekovich Akhmetov ; Abror Kayumovich Karimov ; Dilfuza Usmonaliyevna Kambarova ; Dilshod Kuchkor ugli Begmatov

The growth of the share of mechanization in the total volume of field work in mountainous and foothill areas or on hilly terrain with areas with significant irregularities and slopes is constrained by insufficient longitudinal and lateral stability of serial tractors.To solve this problem, “CTCAE”RLO has begun work on the development of a tractor with a variable track and base.During field and transport work on areas with significant irregularities and slopes where stability is required, the base of this tractor is set to the greatest.At the same time, for processing relatively flat and small areas where a minimum turning radius is required, on the contrary, its base is set to the smallest.The transfer of the tractor from one base to another is carried out by the mechanism of changing the tractor base.Reliability of work, which largely depends on the parameters of its most critical units and parts that are correctly selected when constructing.The conducted studies have shown that the proposed method for checking the reliability of the hydraulic cylinder axis is also acceptable for checking the reliability of the remaining axles of the mechanism for changing the base of the tractor.In the course of the study, it was found that the parameters incorporated in the design of the axis of the hydraulic cylinder withstand the load applied during the operation of the mechanism for changing the base of the tractor and provides the condition of strength in the dangerous section, that is, (>[(]Т, therefore, the mechanism is operational.

53-55

Authors: Gulnoza Meyliyeva

this article presents project technology, interactive learning, the use of electronic teaching aids and the use of computer presentations in teaching English.

60-63

Authors: Makhamadikhon Isroilovich Ismoilov ; Mashkhura Makhamadikhonovna Ismoilova ; Muniskhon Fakhriddinkhon qizi Mutalibkhonova

The article examines the essence and importance of creativeness, the characteristics of a creative person, its advantages, the evaluation of creativeness, the theoretical basis of the criteria for creativeness.

68-70

Authors: Tohira Rikhsibaevna Islamova

The main features of the communicative approach in teaching English and possible problems that may arise are discussed in this article. Since this is a student-centered method, the teacher must re-evaluate his position in the classroom and understand that the traditional class has changed significantly.

78-85

Authors: Olga Mikhailovna Proshina

The design of a fire safety system for educational complexes with centralized management differs significantly from that for an educational institution. The article proposes a model of fire safety management support system for educational complexes that combine geographically distributed objects of different levels of complexity.

101-109

Authors: S. U. Zhanatauov ; A.K. Niyazbayev

The article develops a digital model of the hydraulic motor operation. Real measurements in the technical system unit-hydraulic motor are considered. The fact is revealed: 3-dimensional real samples Z(1)mn,Z(2)mn,Z(3)mn,Z(4)mn,, m=45,n=3,. have the same "digital portraits", and when analyzing 4 tables of standardized data, hidden (unmeasurable, but calculated) performance indicators of the hydraulic motor are revealed. 2 significant indicators (y1, y2) were calculated with the values "power consumed by the hydraulic motor for rotation with a controlled speed of the hydraulic motor and maintaining the pressure level" (y1) and "adjustable speed "of the mechanism X" (y2). Digital portraits (Table 1, Table 2) and model formalizations were developed in the form of linear equations of variable variability (measured and calculated) and in the form of multidimensional equations of cognitive meanings of variable variability. The rated power of the hydraulic motor is distributed in the amount of 3 local capacities: 36.650916% of the rated power of the hydraulic motor plus 36.650916% of the power of the hydraulic motor spent on regulating the pressure drop in the hydraulic motor, plus 26.697889 % of the power of the hydraulic motor spent on providing the desired speed of the hydraulic motor."

116-125

Authors: S. Musinov ; G. Musinova

The study actualizes the role of the taxonomy of the American psychologist B. Bloom in the activation of the cognitive process. The article is devoted to the analysis of this complex, systematic process of cognition, where the role of representation in the development of its skills and abilities is considered. It also explores the relationship of weakened perception during the pandemic, with COVID-19, which led to indifference, irresponsibility to one's own and others ' health, expressed in the frustration syndrome.

129-132

Authors: I.H. Movlaev

Mechanochemical modification of waste low-density polyethylene (LDPE) with a modified thiourea phenol-formaldehyde oligomer (TFFO) was carried out under the conditions of traditional polymer processing. Rubber compounds based on SKN-40M nitrile butadiene rubber and waste low-density polyethylene (LDPE) modified with a modified thiourea phenol-formaldehyde oligomer (TPPO) have been developed, and the complex of properties of their vulcanizates has been investigated. It was found that the obtained rubbers, along with the preservation of the physical, mechanical and operational properties at the standard level, have improved tensile strength, petrol resistance and strength of attachment to metal. In addition, the possibility of recycling polyethylene waste and solving the associated environmental problems is shown.

137-139

Authors: Dilfuza Daminovna Turaeva

Lots of population is at present willing to communicate in different languages but it is not easy to communicate in Russian language because we firstly need to have initial vocabulary and grammar knowledge. Furthermore, there should be paid much attention to phonetic rules to follow in order to express thoughts correctly while communicating. Russian language is a second language for us that give great opportunity for learners to be employed in different domains of life in the future. Moreover, this paper highlights views of scholars and variety of techniques to improve communicative competence of learners.

143-145

Authors: Nilufar Ibrohimovna Muhammadjonova

The purpose of the article is to analyses the role of monitoring in the system of vocational education in higher educational institutions. Consideration of this issue is relevant, since training is a continuous process that is regularly controlled by the teacher, as well as the student himself. The effectiveness of the development of competencies within the discipline directly depends on the control of the student's training quality. The methods used in studying this topic are analysis and synthesis.

149-151

Authors: Umida Abdurahimovna Maksumova

The article discusses the relevance of foreign language proficiency as one of the conditions for successful adaptation in the social space, and considers English as the most popular language today. The authors talk about the reasons for learning foreign languages and the advantages that this gives in the daily and professional spheres.

156-158

Authors: Sevara Anvarovna Erdanova

Attention to the symbol as a special category is present in the works of many philosophers, linguists and literary critics. We could not find an unambiguous interpretation of the symbol. We are more interested in the specifics of the symbol in the language of a work of art and the ways of analyzing the symbol as a linguistic category. The article is devoted to the analysis of different points of view on the category of symbol and the methods of linguistic description of symbol in imaginative literature.

164-167

Authors: Abdumajid Abdumavlanovich Sagatov

The article researches development main trend in painting Uzbekistan period to independence.

173-176

Authors: Khurshidjon Shukhrat ugli Kakhramonov

This article presents one of the key problems of housing and communal services - the sphere of management. The system of housing stock management in the Republic of Uzbekistan is considered, and recommendations on some issues related to the management of the housing stock and the housing and communal services sector are proposed.

182-184

Authors: Yashnar Yusupov

It is known that commercial banks, due to their position in the financial system, are a necessary part of ensuring correct and timely financial relations, which, of course, affects the economy as a whole. The article deals with competition-competitive, income diversification is an inevitable and objective trend that helps banks to increase profits, minimize risks and improve their competitive positions in the system of commercial banks in Uzbekistan and in the developed countries of the world. For this purpose, the financial reports of commercial banks of Uzbekistan and other scientific resources are analyzed, and some conclusions and recommendations are given at the end of the article.

188-190

Authors: Qosim Abilovich Sidiqov

The article exposes the facts on the researches done on “Kutadgu bilig” in Uzbekistan which is one of the oldest Turkic written monument. The research works were analyzed chronologically and the author of the current article gives own opinions on peculiarities of the conducted researches as well.

212-222

Authors: N.A. Abiev ; Z. Turar

In the paper we consider questions concerning computer interpretation of known results in the asymptotic theory of nonlinear differential equations admitting periodic solutions. The main subject of our consideration is Duffing equation describing regularly perturbed nonlinear oscillations. In the paper we suggest a computer program, which perform asymptotic expansions of Duffing equation's solution by degrees of small parameter. For seqular terms of such expansions a computer implementation of well known elimination approach is shown. Series of numerical computations are conducted and results are depicted in graphs.

235-253

Authors: Samuel Akwasi Danso ; Shang Liping ; Hu Deng ; Justice Odoom ; Linyu Chen ; Zhong-gong Xiong

Terahertz technology is nonionizing radiation consequently posing less human risk. However, its spectroscopy-scanned images are characterized by low-resolution images thereby posing significant challenges when object detection is to be performed in such images. Recently, deep learning-based detection has shown much prospects owing to their highly based computer vision approach for its superior efficiency and easy network parameter optimization. In this paper, we perform a comprehensive analysis of prominent object detection models based on terahertz images regarding concealed dangerous and prohibited objects in bags, books, wood etc. as often witnessed in airports, subway stations etc. By way of boosting the performance coupled with detection accuracy of the models, we expand our initial terahertz images via image augmentation. Experimental results reveal that one-way detection method for hidden weapons and non-weapons is far better than two-way detection methods. Moreover, we achieved a 2% increased accuracy and an increased rate of 2.5 due to the optimization fromYOLOv3.

261-263

Authors: Muqaddam Ravshanbekovna Alidjanova

This article deals with the issues of international assessment systems that affect the process of primary school education and the quality of education. The structure of the exercise book in solving problems is described. Examples of tests in the field of PISA and TIMSS are given.

267-270

Authors: Iroda Valijonovna Kholdarova

This article describes the use of generonyms in the Uzbek language in folklore, the analysis of their peculiarities.

275-278

Authors: S.M. Zokirova ; D.O. Axmedova

This article is devoted to the development of speech of elementary school students, for this they need to know the meaning, pronunciation and spelling of certain words. Using dictionaries in reading lessons is an important part of building students' vocabulary, familiarizing them with different dictionaries, and developing the skills to use those dictionaries.

283-287

Authors: Indira Jumabayevna Tulegenova ; Zulfiya Kurbanaliyevna Dosmetova ; Ziyodullo Khamidullayevich Sultankhodjayev ; Saule Uteshevna Bazarbayeva

Obesity is the most common risk factor for many noncommunicable diseases. The accumulation of adipose tissue in certain areas of the body may be associated with various diabetes risks. Excessive visceral adipose tissue is positively associated with the risk of diabetes, but the association of subcutaneous adipose tissue in the abdominal or femoral region and diabetes is still a matter of controversy.

301-309

Authors: Samuel Akwasi Danso ; Shang Liping ; Hu Deng ; Patrick Bobbie ; Michael Asante ; Justice Odoom ; Daniel Appiah ; Soglo Richlove Samuel

Terahertz imaging technology has the advantages of rapid imaging, strong penetration, harmless to the human body hence widely used in a variety of security environments and has become an alternative technology for X-ray imaging. In this paper, a GAN network-assisted deep learning method is proposed to detect whether there are illegal objects in terahertz images. Most importantly, our GAN model is used to improve the low resolutions of terahertz image and video. First, the GAN network reconstructs the blurred terahertz image, and then we use the optimized YOLOv3 object detection network to detect. The experimental results show that with the aid of GAN to blur image reconstruction, the accuracy of object detection is improved by 7.49%. On the YOLOv3 detection network, we added additional YOLO heads, which help to improve the ability of the network to detect objects of different sizes. Compared with the original YOLOv3 model, the improved model improves the detection performance by 10.96%. On the quantitative enhancement indexes (PSNR and SSIM), we attain a significant percentage increase.

321-327

Authors: Zokir Bozorboyevich Khudayberdiyev ; Jamoliddin Shokirovich Achilov ; Rashid Sharafovich Usanov

The article deals with symmetric vibrations of a three-layer elastic plate. Symmetric equations for vibrations of a three-layer elastic plate are obtained. A system of equations of vibrations of a single-layer elastic plate is derived from the obtained equations. Comparison of solutions of equations of vibrations of a single-layer elastic plate with solutions of equations of other authors is carried out. The comparison results show the reliability of the obtained equations.

337-347

Authors: Arthur Alexandrovich Blagorodov ; Dmitry Оlegovich Bordukh ; Danil Sergeevich Shcherbakov ; Vladimir Timofeevich Prokhorov ; Galina Yurievna Volkova

In the article, the authors consider the Arctic region. Today, every educated person understands that the Arctic is not just Russia's tomorrow, it is its future, its chance to remain a great maritime power, using its geographical and strategic location to extract economic benefits and increase its influence in the world. And scientists, specialists in the transport industry have a great responsibility to identify specific scientifically grounded directions of Russia's economic development and its use of Arctic resources, including transport. Northern sea route and railway throughout the arctic zone.

359-365

Authors: Leonid Shron ; Vladimir Bogutskiy ; Elmar Yagyaev

To study the influences of defects in fillet welds of T-joints on their performance, a full factorial experiment was conducted on models of optically active material. After processing the experimental data and checking the model for adequacy, were obtained the regression equations. To verify the conclusions obtained on photoelastic models, were tested samples of ordinary T-beam welded compounds of the AMG 6 alloy. It was found that the influences of the pore on the stress state and bearing capacity of the joints depends on its size and position. The work also found that horizontal non-fusion reduces the bearing capacity of the fillet weld much more than vertical. In the process of welding, it is necessary to pay the main attention to the nonfusion of the edge of the joined sheet.

375-379

Authors: Eleonora Gordeeva ; Leonid Shron ; Vladimir Bogutskiy

The article presents the results of comparing the results of calculations performed according to the structural model of a stable material, the deformation theory extended to disproportionate loading and according to the theory based on the division of stress into active and additional stress, with the results of experimental studies carried out on samples of steel 45.

388-390

Authors: Gulzira Kurbanbaevna Kdyrbaeva

The attitude of modern man to the intellect is undoubtedly reflected in the articles of the studied languages. Therefore, the analysis of proverbs on the basis of paradigmatic relations helps to determine the attitude of the Karakalpaks and the British to the mind and wisdom. Comparison of the linguistic material of one language with the material of another language presupposes a good knowledge of the cultural environment of the compared second language and the wide use of materials characterizing the culture and mentality of both languages in the study of proverbs. In both languages, there are many proverbs and sayings that express religious ideas about a person, the associative field of the concept of “person” - “adam”, reflecting his life. In the process of analyzing the examples, it was found that there are similarities in the semantic and syntactic fields of these units, but there are gaps in the paradigmatic field.

395-400

Authors: Nozim Muhammadrashitovich Kurbonov ; Komila Ahmedovna Ibragimova

The article presents two-dimensional mathematical model of the gas filtration process in porous media and numerical calculation algorithm for analyzing and predicting this process by the method of coordinate splitting. Based on this numerical algorithm, software has been created and series of computational experiments is presented. An assessment of its efficiency is given in comparison with the calculation algorithm by the method of alternating directions.

406-409

Authors: Dilbar Shukurovna Tojiyeva

The article deals with detailed discussion on the elementary components of developing the much required interpersonal skills. It involves systematic and continuous process of telling, listening and understanding." It is essential to know and adhere to the various interpersonal skills to enhance the quality and output of the intended communication.

414-421

Authors: Nozimakhon Khayotjon Qizi Abdulkhakova

Commercial banks are the most important subject of the financial system and are at the epicenter of these processes. Global economic integration, reforms of financial systems in different countries, the constant expansion of international banking services, the rapid development of global information and communication technologies, and the convergence of financial markets have contributed to the rapid internationalization of banking. This article examines the foreign experience of regulating the commercial activities of banks. The legal regulation of banking activities in the CIS countries and the European Union is considered. The Basel Standards for Increasing the bank Capital of Commercial Banks are presented.