Actual problems of Mathematics, Physics and Mecanics
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Actual problems of Natural Sciences
BUKHARA REGION MOKHI-KHOSSA WATER BASIN SANITARYHYGIENIC INSPECTION
It is known that a person’s way of life and life is connected with water. That is probably why, from the ancient settlements on the earth to the modern villages and towns, all are located near or directly on the banks of water sources-springs, streams, rivers, lakes. Since ancient times, ponds were...
3 April 2024, 21:50
HYDROCHEMICAL COMPOSITION OF PONDS IN BAHA ‘AL-DIN NAQSHBAND SHRINE, BIOTECHNOLOGY OF DETERMINATION AND PROPAGATION OF PHYTOPLAKTONS
This article presents information on the identification of phytoplankton in the ponds located in the shrine of Baha ‘al-Din Naqshband (Bahauddin Naqshband) and the study of their hydrochemical composition....
3 April 2024, 21:50
AGROBIOTECHNOLOGY OF CULTIVATION RICINUS COMMUNIS L. IN THE CONDITIONS OF THE BUKHARA
This article discusses the agrobiotechnology of growing medicinal castor oil plant in the conditions of the Bukhara region. In addition, the germination of castor seeds was carried out in laboratory and field conditions. It was found that the germination of seeds in the experimental version treated...
3 April 2024, 21:50
STUDY OF THE STRUCTURE OF THE NITRIDED LAYER FOR THE STRENGTH OF THE ADHESIVE BOND OF WEAR-RESISTANT COATING IN R9M4 STEEL
The study is aimed at assessing the effect of the structure of the nitrided layer on the adhesive bond strength of the coating TiAlN with a high- peed steel base. The method of ion nitriding in a gas plasma of a two-stage vacuum arc discharge allows you to control the structure of the layer by...
3 March 2024, 21:50
SYNTHESIS OF ACETYLENIC DIOLS BASED ON THE REACTION OF TERMINAL ACETYLENIC ALCOHOLS WITH ALIPHATIC KETONES
In this work, the synthesis of highly biologically active acetylene diols was studied for the first time based on the reaction of the nucleophilic coupling of terminal acetylene alcohols with aliphatic, alicyclic, aromatic and heterocyclic substituents in their molecule with acetone, methyl butyl...
3 March 2024, 21:50
ISSUES OF RESEARCH AND MAPPING OF TOURIST RESOURCES OF THE REGION USING GIS
In this article, the geographical basis of determining the level of development of tourist resources and tourism infrastructure, scientific and practical proposals and recommendations for their improvement, the rational use of tourist and recreational resources, the development of many types of...
3 February 2024, 21:50
BIOETHICS AS AN EDUCATIONAL DISCIPLINE, ITS CONTENT, PURPOSE AND TASKS
In this article, the humanistic and philosophical analysis of bioethics in modern medicine is covered. Bioethics, as a different field from classical medical ethics, appeared and began to develop rapidly. Bioethics is a new worldview, a new science of humanity and compassion....
3 January 2024, 21:50
POSSIBILITIES OF RAINFED HORTICULTURE DEVELOPING IN THE ADYR AREAS OF NAMANGAN REGION
In this article, the results of the experiment conducted in 2020 on the comprehensive development of rainfed horticulture in the adyr areas of Uychi district of Namangan region. Experiments were carried out on the basis of agrotechnology of plastic mulching using polyethylene film. Experiments were...
3 January 2024, 21:50
EXTRACTION OF SERICIN FROM SILK FIBER WASTE UNDER THE INFLUENCE OF MICROWAVES AND ULTRASOUND IN A WATER ENVIRONMENT
Currently, scientists have used several methods of extracting sericin contained in silk fiber. For example, the traditional thermal method, ultrasonic and microwave (ultra-high frequency - UHF rays) methods. When these methods are compared, the effectiveness of the microwave method is proven....
3 January 2024, 21:50
VOLUMETRIC SWELLING PROPERTIES OF SILK FIBROIN FIBER IN WATER, ACIDIC AND ALKALINE SOLUTIONS
Silk fibroin (SF) is an excellent raw material for making many useful materials. Fibroin materials can be used in various environments. For this reason, it is very important to know the information about the amount of fibroin swelling in which solution medium and its swelling speed. Therefore, we...
3 January 2024, 21:50