| Nashriyot | Самарқанд давлат университети |
|---|---|
| Shahar | Samarqand |
| ISSN | 2091-5446 |
| e-ISSN | 2181-1296 |
| Tashkil etilgan | 1999 |
| Nashr tillari | O‘zbek |
| Maqolalar soni | 1381 |
| OAK holati | Ro‘yxatda |
Ushbu maqolada umumta'lim maktablarining 7-9-sinf o'quvchilari uchun STEM (Science, Technology, Engineering, Mathematics) kompetensiyalarini baholash tizimi taklif etiladi. Har bir sinfning yosh xususiyatlari va fanlar…
This article explores the linguacultural dimensions of speech formulas in business communication, focusing on their use and adaptation within the English and Uzbek linguistic contexts. Speech formulas are essential…
This article conducts a comparative analysis of the category of number in English and Uzbek proverbs, focusing on its figurative, social, and philosophical dimensions. Drawing on paremiological corpora, the study…
В статье анализируются процессы трансформации и калькирования иронических фразеологических единиц (ФЕ) в русском и узбекском языках. Особое внимание уделяется структурным, семантическим и синтаксическим изменениям…
Maqolada umumiy o'rta ta'lim tizimida zamonaviy HR texnologiyalarni qo'llash va bu boradagi Singapur tajribasi tadqiq etilgan. Ta'lim muassasalarida inson resurslarini boshqarish jarayonlarini raqamlashtirish va…
The synthesis of pyrido[2,3-d]pyrimidinone derivatives (3a–c) was carried out using a one-step cyclocondensation method. The reaction of 2-amino-5-bromonicotinic acid with various lactams was carried out in the presence…
In order to search for new sources of biologically active substances, flavonoids from the aboveground parts of two plant species of the Fabaceae family, Sophora lehmanni and Cicer mogoltavicum, were studied. Compounds…
In the present study, a series of tetracyclic thieno[3,2-d]pyrimidin derivatives were subjected to molecular docking simulations to evaluate their binding affinity toward the cyclooxygenase-2 (COX-2) active site…
This paper considers a system of nonlinear diffusion-reaction equations with nonlinear boundary flows in a half-space. The focus is on the problem formulation, determination of a weak solution, and derivation of an…
This article analyzes the territorial movement of the population in the Republic of Uzbekistan and its regions at the regional level. Influencing factors were studied over a specific period from the perspective of their…
In this work, the elemental composition and vibrational properties of the multicomponent crystal Fe5Ga6Gd2YZr were investigated using X-ray fluorescence analysis (XRF) and Raman spectroscopy. The XRF results enabled the…
In this study, the spectroscopic properties and intermolecular interactions of the HCl molecule and its isotopologues (H35Cl, H37Cl, D35Cl and D37Cl) in a liquid argon (Ar) solvation environment were investigated at the…
A study and comparative analysis of magneto-optical (MO) effects, in particular the Faraday and Kerr effects, in compounds with a chalcogenide spinel structure: CdCr2Se4 and CuCr4Se4. These materials are of significant…
This research study analyzed the main factors causing water quality deterioration, criteria for assessing physical, chemical and other parameters of water, and hazardous pollutants that may be found in water. During the…
Ushbu maqolada ta'lim jarayonida innovatsion yondashuvlarni joriy etish va ularning samaradorligini baholash masalalari tahlil qilingan. Zamonaviy ta'lim tizimida interfaol usullar, axborot-kommunikatsiya…
In this study, a g-CN-VN/CoNi2S4 nanocomposite material with a layer-by-layer architecture was successfully synthesized to improve the photocatalytic conversion efficiency of CO2. The material consists of a…
Quinazoline derivatives are important heterocyclic compounds with significant roles in organic synthesis and drug design, with 4-aminoquinazoline derivatives being particularly noteworthy due to their biological…
This study analysed the luminescence spectra of zinc oxide (ZnO) and zinc selenide (ZnSe) micropowders obtained by single- and two-photon excitation with pulsed laser radiation on copper vapour. The mechanisms of…
In this study, activated carbon samples derived from walnut shells and chemically activated using H₃PO₄, KOH, and ZnCl₂ were comparatively evaluated in terms of their morphological features, pore development, and…
In this work, samples with spinel structure Li1.33AlxMn1.67-xO4 (0 ≤ x < 0.7) modified with Al3+ were synthesized by sol-gel method. Conversion of Li1.33AlxMn1.67-xO4 samples to H-form was carried out in 0.1 M HCl…
The sum of effective air temperatures above 0.0°, 5.0°, 10.0°, 15.0°C in the vegetation period in the territory of the Samarkand region for 1991-2020 was calculated. In 2023, the area of agricultural crops in the region…
We report the estimation of the coronal magnetic field strength in the height range of 1.04-1.08 R☉ using radio observations of a high-frequency band-splitting type II radio burst associated with an X2.2 solar flare and…
The article examines the balneological resources of the Bukhara region as an important component of its regional medical-geographical potential. The natural therapeutic factors of the territory, including mineral…
This research paper proposes a methodology for processing datasets based on modern methods. Iterative imputation based on decision trees was used to systematically replace missing values in the dataset. The remaining…
Mazkur maqola chuqur neyron tarmoqlarga asoslangan oʻzbek tilidagi uzluksiz nutqni avtomatik tanib olish tizimini yaratishga bagʻishlangan boʻlib, unda tizim tuzilmasi batafsil bayon etilgan. Tizimda bir nechta asosiy…
In this study, the influence of climatic factors on the chemical composition of basil (Ocimum) essential oil was studied using the gas chromatography-mass spectrometry (GC-MS) method. The samples were taken from basil…
We considered the main theoretical aspects of the parameterization of algebraic manifolds. Presented calculations of parameterization, both in a computer algebra system and manually. For clarity, we also implemented…
This article examines the potential for integrating sorption (absorption/adsorption) refrigeration units with biogas complexes in Central Asia. The climatic and socioeconomic factors that make this combination highly…
When the atomic number of (TiO₂)ₙ clusters increases from 7 to 9, the energy of the forbidden region (lattice gap) and its size (wavelength) change (DFT) were calculated based on the B3LYP/6-31G** basis set. These…
We consider a discrete Schrödinger operator on a ladder of -dimensional square lattices with a self-adjoint matrix-valued potential whose entries are and . We investigate conditions for the existence of eigenvalues and…
In this work, CoFe2O4 ferrite nanoparticles were synthesized via a chemical coprecipitation method. As a preparation of the magnetic fluids, magnetic particles stabilized in the water with surfactant sodium oleate. The…
The modern mapping process has significantly increased the capabilities of advanced geoinformation technologies, which have significantly increased the capabilities of manual work. Electronic demographic mapping is…
Initially, polymethylene [2,3-d]pyrimidinone derivatives were synthesized using known cyclization methods. The 3-bromo-tri, -tetra and –pentamethylene [2,3-d]pyrimidinones obtained in this step were subjected to…
This study explores single-layer blue light-emitting devices based on a solution-processed hybrid perovskite–polymer composite. The emissive layer was formed from bromide precursors of an alkali metal and lead using a…
Current research in the field of medicinal and organic chemistry is focused on the study of heterocyclic synthons, which are the basis of complex organic molecules with biological activity. In this study, tri-, tetra…
Mesoporous silica sorbent modified with Schiff base and free Schiff base was synthesized. The sorbent showed high adsorption efficiency towards Cu(II) ions, which was confirmed by structural (FTIR) and equilibrium…
This study investigates charge transport mechanisms and energy level alignment in peroLED structures based on inorganic halide perovskite KPbBr₃. The device architecture ITO / KPbBr₃-PEO / Ga-In was fabricated using a…
The friction coefficient in adhesion contacts depends on multiple factors, including material properties, external load and contact geometry. Understanding the role of these parameters is essential for optimizing…
Particle accelerators used in research, medicine, and industry generate secondary radiation fields that induce radioactivity in structural components, shielding materials, coolant systems, air, soil, and groundwater…
This work reports the synthesis of high-quality CsPbBr3 quantum dots (QDs) via an octylammonium bromide (OABr)-assisted ligand-assisted reprecipitation (LARP) method and the systematic tuning of their optical…
Janus kinases (JAKs) are recognized as important molecular targets in targeted therapy, and their inhibitors are widely used for the treatment of various autoimmune and inflammatory diseases. Although several JAK…
This study presents the results of obtaining carbon quantum dots (CQDs) using a hydrothermal method based on the principles of "green" synthesis based on glucose precursor and studying their photoluminescence (PL)…
Ushbu maqolada kvant mexanikasi qonunlariga asoslangan holda maxfiy kalit hosil qilish va undan axborotni himoyalangan tarzda uzatishda foydalanish masalasi ko'rib chiqiladi. Taklif etilgan yondashuvda yuboruvchi va…
This study addresses the problem of modeling the strengthening process of natural collapsible soils using polymer-composite solutions based on the methods of mathematical experimental design. The influence of factors…
We consider the Cauchy problem for a one-dimensional homogeneous system of Hopf-type equations arising in a two-fluid medium. Energy dissipation is assumed to occur solely due to the friction coefficient (analogous to…
In this study, an efficient synthetic method for a series of novel aromatic acetylenic alcohols (1-6) was developed based on cyclopropylacetylene and various substituted benzaldehyde derivatives. The reaction was…
This study focuses on the development of effective methods for bentonite enrichment with montmorillonite and the evaluation of the effect of thermal treatment on its cation exchange capacity (CEC). The enrichment…
Ushbu maqolada ta’lim jarayonida innovatsion yondashuvlarni joriy etish va ularning samaradorligini baholash masalalari tahlil qilingan. Zamonaviy ta’lim tizimida interfaol metodlar, axborot-kommunikatsiya…