Bul maqalada diqqattiń psixofiziologiyalıq ózgeshelikleri ilimiy-teoriyalıq tiykarda analiz etiledi. Dıqqattıń psixologiyalıq hám fiziologiyalıq ólshemleri, onıń túrleri, funkciyaları, nerv sisteması menen baylanısı, elektroencefalografiyalıq ritmler arqalı kórsetiliwi hám de túrli psixikalıq jaǵdaylardaǵı ózgerisleri jaritıp berilgen. Sonday-aq, T. Ribo, P.Ya. Galperin hám basqa alımlar tárepinen alga súrilgen teoriyalıq kózqaraslar tiykarında diqqat procesiniń mánisi tereń analizlengen. Dıqqat insannıń kognitiv iskerligi hám tabıslı jumıs islewinde áhmiyetli faktor sıpatında qaralǵan.

Изобразительное искусство объединяет в себе множество различных направлений, каждое из которых уникально по своим выразительным возможностям. Одним из древнейших и важнейших видов является графика, имеющая богатую историю и занимающая значимое положение в искусстве. В данной статье рассматриваются сущность графики, её основные виды, роль и функции в различных областях художественной деятельности.

This article presents an overview of advanced technologies utilizing synthesized nanoparticles for the selective separation and purification of crude oil. The growing demand for cleaner fuels and more efficient refining methods has driven the development of nanotechnology-based solutions in the petroleum industry. Engineered nanoparticles, including metal oxides, carbon-based nanostructures, and functionalized silica, have demonstrated exceptional selectivity, surface reactivity, and stability under harsh processing conditions. The study highlights the mechanisms by which nanoparticles interact with crude oil components—such as asphaltenes, resins, and sulfur-containing compounds—enabling targeted removal and separation. Laboratory-scale experiments and pilot-scale applications are analyzed to assess improvements in phase separation, emulsion breaking, and reduction of processing time and energy consumption. The results support the feasibility of integrating nanoparticle-based systems into conventional refining processes to enhance performance, reduce environmental impact, and increase the yield of high-value fractions. These technologies show strong potential for contributing to the future of sustainable and efficient crude oil treatment.

Ushbu maqolada sportning stol tennis turi bo‘yicha to‘garaklarda shug‘ullanuvchi 12 yoshli bolalar bilan olib borilgan mashg‘ulot jarayonlari tahlil qilinadi. Asosiy e’tibor sportchilarning jismoniy tayyorgarligini xalqaro me’yorlar darajasiga yetkazish, ularning tezkorlik va chaqqonlik sifatlarini rivojlantirish masalalariga qaratilgan. Tadqiqot davomida yuqori shiddatli yuklamalarning organizmga salbiy ta’siri, musobaqa oldi tayyorgarlik bosqichlarining uzviyligi va nazorat mashqlari orqali jismoniy rivojlanish dinamikasini aniqlash usullari o‘rganilgan.

Penetration testing (or “pen testing”) is a proactive security technique used to evaluate the defenses of computer systems, networks, and applications by simulating attacks. This article provides a comprehensive overview of penetration testing, covering its phases, methodologies, tools, and ethical/legal considerations. We describe key steps such as planning, reconnaissance, exploitation, and reporting, and discuss different approaches (external, internal, blind, etc.). Common tools (e.g. Nmap, Metasploit, Burp Suite) are reviewed. Ethical issues such as obtaining authorization and complying with laws (e.g. avoiding unauthorized access) are highlighted. Practical examples and diagrams illustrate how penetration tests are conducted in real-world scenarios.