This article discusses the influence of the social environment on the development of the individual.

Ushbu maqolada mahsulotlarni va sifatni boshqarish tizimlarini xalqaro standartlar asosida sertifikatlashtirish jarayoni hamda uning tashqi iqtisodiy faoliyatga ko‘rsatayotgan ta’siri tahlil qilingan. Sertifikatlashtirish eksport va import jarayonlarini yengillashtirish, tashqi bozorda raqobatbardoshlikni oshirish, mijozlar ishonchini mustahkamlash va investitsiyaviy jozibadorlikni kuchaytirishda muhim o‘rin tutadi. Shu bilan birga, ISO 9001, ISO 22000, va boshqa sifat tizimlari standartlarini joriy etish orqali korxonalarning xalqaro talablarga moslashuvi va mahsulot sifatining barqarorligini ta’minlash masalalari ko‘rib chiqilgan.

Samarkand, a UNESCO World Heritage Site and ancient Silk Road hub, faces the challenge of balancing tourism growth with heritage preservation. This article examines sustainable tourism development prospects, analyzing current patterns, identifying challenges, and proposing integrated strategies. Research demonstrates that sustainable development requires combining heritage conservation, community engagement, technological innovation, and strategic policy implementation.

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.