COLLECTIONS AND THE METHODOLOGY OF PERFORMING OPERATIONS ON THEM Abstract: Explaining the concept of a set, considering a set of certain elements, a group as a whole, objects that make up a set are called set elements, using Euler-Venn diagrams, a complementary set, a geometric representation of sets

DIGITAL DEVELOPMENT IN TEACHING TECHNICAL SUBJECTS TO STUDENTS OF TECHNOLOGICAL DIRECTION BASED ON THE APPLICATION OF TECHNOLOGY Abstract: A bipolar transistor is a semiconductor device commonly used for amplification. The device can amplify analog or digital signals. It can also switch DC or function as an oscillator. Physically, a bipolar transistor amplifies current, but it can be connected in circuits designed to amplify voltage or power. In the diode tutorials we saw that simple diodes are made up from two pieces of semiconductor material to form a simple pn-junction and we also learnt about their properties and characteristics. If we now join together two individual signal diodes back-to-back, this will give us Two PN-junctions connected together in series that share a common P or N terminal. The fusion of these two diodes produces three layers, two junction, three terminal device forming the basis of a Bipolar Junction Transistor, or BJT for short. Transistors are three terminal active devices made from different semiconductor materials that can act as either an insulator or a conductor by the application of a small signal voltage. The transistor’s ability to change between these two states enables it to have two basic functions: “switching” (digital electronics) or “amplification” (analogue electronics). Then bipolar transistors have the ability to operate within three different regions: Active Region – the transistor operates as an amplifier Saturation – the transistor is “Fully-ON” operating as a switch Cut-off – the transistor is “Fully-OFF” operating as a switch

ANALYSIS OF POSSIBILITIES OF USING BIFACIAL SOLAR PANELS Abstract: The purpose of our experimental experiment was to test 550W simple and bifacial solar panels with the same power. In our experiment, both panels were installed in the same stationary position and measurements were made at 15-minute intervals. Graphs were drawn for both panel indicators and analysis was carried out. Our article provides a comparative analysis of power, short circuit current and open circuit voltages

WAYS TO DEVELOP MARKETING MANAGEMENT METHODS IN THE ENTERPRISE Abstract: This article examines market research, digital marketing, attending industry events, creating a strong brand identity, developing special products, and using analytics to implement the suggested marketing methods.

IMPROVING THE METHODOLOGY FOR THE DEVELOPMENT OF PROFESSIONAL TRAINING OF STUDENTS BASED ON TEACHING ATOMIC PHYSICS USING DIGITAL TECHNOLOGIES Abstract: Education process which belongs to computer-assisted laboratory studies are considered one of the most difficult problems of higher education institutions. The subject of practical subjects in technical higher education institutions is complex and mainly requires explanation or demonstration in computer laboratory. These science topics emphasize on the use of observational skills, namely that students need to see the process in action and connect the theory more closely to reality. However, attitudes of students towards practical works are often negative because they don't give effect in laboratory work and this may reflect the notion that there is not clear purpose for practical assignments of student in the laboratory. The main purpose of this study is considered to study the effectiveness of active learning activities in the field of "Development of mobile application" on the basis of science program of Google Classroom's computer engineering specialty. In this research, a set of questionnaires was distributed to 100 students who enrolled in groups which teach "Development of mobile application". The Technology Acceptance Model (TAM) was used to organize the relationship between the factors which were identified in the data analysis and the effectiveness of the learning activities. The results show that the majority of students are satisfied with the Google Classroom tool which is provided in class which all rates are above average. Rates is particularly good in areas such as comfortability of access, acceptable utility, communication and interaction, teaching and student's satisfaction with learning activities in the Google Classroom.

CHEMICAL COMPOSITION OF THE PLANT HELIANTHUS TUBEROSUS L Abstract: In the article, the chemical composition and biologically active substances, macro- and microelement composition of the medicinal Jerusalem artichoke (Helianthus tuberosus L.), introduced in the conditions of old irrigated meadow-alluvial soils, were studied, as well as the elements in the root bark and root fruit of the Jerusalem artichoke plant using the neutron-activation method. the analysis results of the quantity are given. According to the obtained results, it has been proven that the root of this plant absorbs elements such as K, Ca, Fe, Na, Sr, Zn and Mn more than other elements, and on the contrary, it absorbs the toxic lead element in a very small amount

THE IMPACT OF CHEMICAL WASTE ON POLLUTION OF FRESH WATER AND ITS INHABITANTS Abstract: This article discusses the intensive use of natural resources, the use of environmentally hazardous biotechnologies for products in which it is impossible to use the production of substances that are not part of the natural cycle, the use of environmentally hazardous biotechnologies. Impact of chemicals on the environment and measures to reduce the impact of chemicals on the environment.

METHOD OF ISOLATION OF INULIN FROM DRY ROOT OF CHICORIUM INTYBUS L. PLANT Abstract: Extraction method of inulin from roots of Chicorium intybus L. It is obtained from the root composition of the substance by a new method not known in the literature. The infrared spectroscopy (IR) method was used to determine the qualitative composition of the isolated substance, the analysis showed that it was inulin. This method was performed under simple conditions compared to other methods. Small amounts of 96% ethanol and distilled water were used

EFFECT OF A TRIAZOLE DERIVATIVE ON MITOCHONDRIAL LIVER DYSFUNCTION IN ALLOXAN DIABETES Abstract: In recent years, the use of herbal preparations in the treatment of diseases has been growing significantly, which is explained by their therapeutic effectiveness and low negative effects on the body. Medicinal substances obtained on the basis of plant compounds are of great importance in medical practice, they are characterized by high physiological activity and pharmacological effects. Creation of effective antidiabetic drugs from bioactive compounds isolated from plants is one of the urgent problems in the future

STUDY OF MICRONUTRIENT STATUS OF PREGNANT WOMEN IN RURAL CONDITIONS Abstract: The article is devoted to the study of the content of magnesium and iron in the diet, as well as their concentration in the blood of pregnant women.at the age of 21-34 years, living in the villages of Kashkadarya region,. According to the results obtained, the magnesium content in the daily diet of the subjects in the 1st trimester was close to normal (95.1%), and in the 2nd and 3rd trimesters - on average 45.9-59.1% higher than normal, while iron consumption in the 1st trimester is on average 52.8 - 80.04% of the norm. Of the studied minerals, the concentration of magnesium in the blood serum relative to the norm (0.75-1.25 mmol / L) decreases in the 1st trimester by an average of 22.8%, in the 2nd trimester - by 20.8%, and in the 3rd trimester - by an average of 14.4%. The concentration of iron in the blood, on the contrary, in the 1st trimester, it was noted at the normal level (107.3%), and in the 2nd and 3rd trimesters - below the norm by an average of 32.4% and 36.5%, respectively.