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.

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.

Information security and cybersecurity are related but distinct concepts in protecting data. Information security focuses broadly on safeguarding information in any form (digital, physical, or intellectual) by ensuring its confidentiality, integrity, and availability. Cybersecurity specifically concerns the protection of computer systems, networks, and online data from cyber threats. This paper compares these fields in detail, providing definitions, key differences, and practical examples. Diagrams and tables illustrate how each discipline is applied in real-world scenarios. Understanding the difference helps organizations allocate resources appropriately and build effective security strategies.

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.

Bu maqolada hozirgi kunda hamma foydalanayotgan internet tarmog’idagi foydali hamda zarali bo’lgan ma’lumotlar, ularning hayotimizga ayniqsa, sog’lig’imizga qanchalik zarar yetkazishi haqida yoritib beriladi.