This paper explores the pathophysiological mechanisms underlying tumor development in detail. It focuses on the cellular and molecular changes that lead to tumor formation, such as genetic mutations, disruption of apoptosis, uncontrolled activation of growth factors, and the weakening of immune surveillance. The study provides a comprehensive overview of how tumor cells create a supportive microenvironment, including the stimulation of angiogenesis, evasion of the immune system, and the process of metastasis to distant tissues. Additionally, the paper examines the metabolic adaptations of tumor cells, their interaction with the surrounding tissues, and how these factors contribute to tumor progression.

Grammar is more than just a set of rules-it's what holds a language together. For teachers, the challenge lies in making grammar instruction meaningful, engaging, and relevant to learners’ real-world communication. This guide provides a step-by-step approach to teaching grammar effectively, offering practical techniques suitable for classrooms, private lessons, or teacher training contexts.

In this article, the most general method of scientific knowledge is used in any conscious practical and theoretical activity of researchers, in all and any field of scientific research, while the empirical level of scientific knowledge is used in most or a group of scientific fields, and the last, theoretical level is used mainly at the theoretical stage of scientific knowledge.

Данная статья представляет собой аналитический обзор современных методов анализа и обработки больших данных, генерируемых в социальных сетях. Исследование рассматривает основные подходы, технологии и инструменты, применяемые для извлечения полезной информации из массивов социальных данных. Особое внимание уделяется методологическим аспектам работы с большими данными в контексте социальных сетей, существующим проблемам и перспективным направлениям развития данной области как в глобальном контексте, так и в реалиях Узбекистана и России.

Ushbu maqolada bo‘sh vaqt kontekstida stress bilan kurashishga e’tibor qaratgan holda universitet talabalarining psixologik barqarorligiga jismoniy mashqlar ta’siri to‘g‘risida chuqur ma’lumotni o‘rganishga qaratilgan. Jismoniy mashqlar inson organizmining stressga fiziologik javobini optimallashtiradi, organizmni moslashuvchan va stressga chidamli holga keltiradi. Shu bois, sog‘lom turmush tarzining ajralmas qismi sifatida muntazam jismoniy faollik stressni yengishda muhim omil hisoblanadi.