This paper explores the theory of complex sentences and examines their structural and semantic classifications in modern English. A complex sentence is defined as a syntactic construction consisting of one main clause and one or more subordinate clauses. The study focuses on the most common types of subordinate clauses: subject clauses, object clauses, predicative clauses, and attributive (appositive) clauses. Each type is analyzed from both structural and semantic perspectives, with illustrative examples to demonstrate their functions in discourse. The paper also highlights the role of conjunctions and relative words in forming complex sentences. The findings show that complex sentences play a crucial role in expressing logical relationships, expanding meaning, and achieving syntactic variety in written and spoken English. Understanding the theory of complex sentences is essential for linguistic analysis and effective language teaching.

The complex sentence occupies a central position in theoretical English grammar, as it reflects the speaker’s ability to express logically and semantically interrelated ideas within a single syntactic structure. A complex sentence consists of one independent (principal) clause and one or more dependent (subordinate) clauses, which are grammatically and semantically linked to the main clause. This article examines the theoretical foundations of the complex sentence, its structural and semantic classification, and provides a detailed analysis of complex sentences containing subject, object, predicative, attributive, and appositive clauses. The study aims to systematize the main approaches to the classification of complex sentences and to demonstrate the functional diversity of subordinate clauses in modern English.  

To study the effectiveness of the use of the robotic rehabilitation training complex CRISAF in the formation of motor skills in children with cerebral palsy. Materials and methods: Rehabilitation using the CRISAF complex was carried out on 15 patients aged 5 to 14 years with a spastic form of cerebral palsy who received inpatient treatment at the Republican Children's Psychoneurological Hospital named after. U. Kurbanova. All children studied at the CRISAF complex daily for 30 minutes, a course of 10 lessons. General clinical, neurological and electrophysiological research methods were performed.

The article examines the syntactic nature, structural organization, and functional roles of composite sentences in modern English. It provides a systematic overview of complex sentence components, including main and subordinate clauses, their syntactic relations, and the mechanisms that govern subordination and coordination. Special attention is given to the classification of complex sentences, the hierarchical arrangement of clauses, and the semantic-pragmatic functions that arise from their structural patterns. The article highlights how composite sentences contribute to clarity, coherence, and stylistic variation in both spoken and written discourse. The findings aim to support students, teachers, and researchers in understanding the rules and principles that underpin complex sentence construction and usage.

This article analyzes systematic approaches aimed at combating crime and early prevention of offenses in mahallas (neighborhoods) with complex criminogenic situations. Specifically, the impact of socio-economic factors, population lifestyle, youth risk groups, family problems, and environmental influences on crime dynamics has been scientifically examined. Additionally, the article highlights the activities of prevention inspectors, cooperation with the public, the "risk mapping" method, individual preventive measures, and the importance of mobilizing internal resources of the mahalla. The article also develops practical suggestions and innovative mechanisms for creating a safe environment in areas with complex criminogenic situations.

This article provides a comprehensive overview of complex compounds, focusing on the roles of central atoms, ligand types, and the interaction mechanisms leading to complex formation. The discussion covers electrostatic and donor–acceptor interactions, the chelate effect with polydentate ligands, and the structural diversity of mono- and polynuclear complexes. Practical applications in catalysis, medicine, and biological systems are highlighted, making the article relevant for both academic and applied chemistry studies.

This article explores the impact of synergetics on the development of society. Synergetics, a multidisciplinary field studying self-organization and complex systems, has indirect effects on societal development. By understanding the dynamics of interactions and emergent behaviors, synergetics provides insights into complex social systems. The effects of synergetics include understanding complex systems, inspiring innovation and technology, promoting collaboration and interdisciplinary approaches, enhancing sustainability and resilience, illuminating social dynamics and collective behavior, and fostering cultural and social transformation.

This article is dedicated to the analysis of the concept of logarithmic residues in the theory of several complex variables. Logarithmic residues serve as a powerful tool for studying the behavior of multivariable holomorphic and plurisubharmonic functions in complex domains. The article provides a mathematical definition of logarithmic residues, their key properties, and methods for calculating them using integrals.

This article explores the impact of synergetics on the development of society. Synergetics, a multidisciplinary field studying self-organization and complex systems, has indirect effects on societal development. By understanding the dynamics of interactions and emergent behaviors, synergetics provides insights into complex social systems. The effects of synergetics include understanding complex systems, inspiring innovation and technology, promoting collaboration and interdisciplinary approaches, enhancing sustainability and resilience, illuminating social dynamics and collective behavior, and fostering cultural and social transformation.

The study of composite sentences is a central aspect of English grammar and syntax. Composite sentences, which consist of two or more clauses, are classified into compound and complex sentences, depending on the syntactic relationship between clauses. Additionally, composite sentences can be syndetic (connected with conjunctions) or asyndetic (without conjunctions). This article provides a theoretical exploration of the structure, classification, and functions of composite sentences, focusing on the linguistic and stylistic issues related to syndetic and asyndetic types. The research aims to provide a clear understanding of these sentence types and their role in effective communication, language teaching, and literary analysis.

This article analyzes the theory of complex functions and their role in conformal mapping processes in physics. The fundamental properties of conformal mappings are discussed, highlighting the ability to transform complex-shaped physical domains into simpler geometric forms. The Joukowski transformation is analyzed based on graphical representation, emphasizing its practical significance in fields such as aerodynamics and electrostatics. Through table and graphical analyses, the importance of conformal mappings in modeling physical processes is revealed.

The Yomonsoy syenite complex is mainly composed of sub-alkaline igneous rocks that form small intrusive bodies south of the Tebinbulak gabbro-pyroxenite intrusion and in the upper reaches of the Yomonoy. The material composition of syenites is very close to Tebinbulak gabbro-pyroxenites, so they should be considered a single gabbro-pyroxenite-monzonite-syenite complex.

The A* algorithm is a well-established search method that has been widely utilized in the pathfinding research community. Its strengths—efficiency, simplicity, and modularity—distinguish it from other pathfinding tools. Because of its proven effectiveness and adaptability, A* has become a popular choice among researchers looking to address complex pathfinding challenges. Its comprehensive approach allows for effective navigation in various applications, from robotics to video games, making it a cornerstone in the field of pathfinding research. This paper investigates the application of the A* algorithm in solving pathfinding problems, focusing on its effectiveness and efficiency in various environments

Pathological changes in the physico-biochemical state of the oral fluid of children with traumatic stomatitis are a fairly wide complex of other expressed changes in the oral cavity of sick children, together with the effect of a general somatic disease, they aggravate the pathological changes defined in the organs of the oral cavity to introduce treatment-prophylactic complex directions aimed at eliminating and preventing cases of deepening of the main traumatic stomatitis symptoms, creating a closed circle with an interdependent effect.

Many of the biologically active substances are found in food products in higher doses than they are used in the pharmacopoeia. At present, food should be considered not only as a source of energy and plastic (building) substances, but also as a very complex pharmacological complex.

In linguistics, complex sentences play a central role in expressing relationships between ideas, events, and circumstances. Among the many types of subordinate clauses found in complex structures, adverbial clauses of time are particularly significant because they allow speakers and writers to situate actions chronologically. These clauses contribute to textual cohesion, clarify sequence, and enhance the precision of temporal meaning in communication. Complex sentences are essential for expressing intricate relationships between ideas. Among the various types of subordinate clauses, adverbial clauses of place hold an important position, as they allow speakers and writers to specify where an action occurs.Among the various types of subordinate clauses, adverbial clauses of reason serve a particularly important function because they explain why something happens.Among the many types of subordinate clauses, adverbial clauses of purpose occupy a special position, as they indicate the goal, intention, or aim behind an action.Adverbial clauses of condition, which specify the circumstances under which an action in the main clause may occur. These clauses enhance clarity and logical structure in discourse by indicating possibilities, requirements, and hypothetical situations that influence the outcome of events.

There are many interrelated theories in mathematical physics and complex analysis, among which the Lee-Yang theorem has a special place. This theorem plays an important role in statistical physics and the theory of phase transitions. By analyzing the roots of polynomials in the complex plane, it allows to study the behavior of physical systems. Also, this theorem is considered as a theoretical basis of thermodynamic limit and state transitions in physics. The main importance of the Lee-Yang theorem is that it geometrically limits the roots of polynomials of complex variables and helps to determine the properties of statistical systems. The main goal of this study is to provide a detailed mathematical proof of the Lee-Yang theorem for the cases n=2 and n=3 and to study its significance in relation to statistical physics.

The phenomenon of syncretism is described differently in various fields and signifies several functions. One of these functions of syncretism is to combine grammatical units and syntactic relations. Syntactic relations means the connection of distinct clauses in the sentences with the help of coordination, subordination and intonation; predicativeness and non-predicativeness; according to the content of the meaning: the relations of cause, time, purpose, condition, result, place, etc. In this article below we will analyze the syncretism of Uzbek complex sentences and their syntactic relations.

The study is based on the analysis of 387 medical records of inpatients with severe traumatic brain injury. The objective of the study was to evaluate the effectiveness of CCH as part of the complex treatment of patients with brain compression by epidural hematoma after surgery, depending on the timing of its use from the moment of injury. The criterion for evaluating the results was the percentage of patient mortality in clinical groups. It has been proven that the effectiveness of CCH as part of complex treatment depends on the timing of its use from the moment of exposure to the traumatic factor. It was found that the use of CCH in the first 48 hours from the moment of injury reduces mortality, while its use after 48 hours after exposure to the traumatic factor does not affect the mortality rate in victims with severe TBI.

The methods of nitric acid processing of phosphate raw materials are analyzed. A technology has been developed for the nitric acid processing of phosphate raw materials into nitrogen-phosphorus fertilizer with the implementation of the process in a condensed pulp by adding sulfuric acid. A technology for producing complex fertilizers with a wide range of N:P₂O₅:K₂O ratios with improved physico-chemical parameters due to the introduction of various potassium salts into the process is proposed.

The purpose of this article is to study the use of local waste based on mineral finely dispersed additives similar to substances that are formed as a result of cement hydration, which ensures high quality, increases frost resistance and forms a dense dissolved mixture. Reducing the consumption of a binder in mortar and concrete mixtures due to the introduction of modifying additives is also an important research field. The paper presents the results associated with pro-ducing a complex modifying additive consisting of waste products from marble and silicon di-oxide nanoparticles and its effect on the properties of cement systems. It is shown that the introduction of a modifying additive, while reducing cement consumption, can increase the compressive strength of cement paste up to 56 %. The X-ray phase analysis is used to determine the composition of the modified cement paste.

This article analyzes South Korea's best practices in crime prevention within neighborhoods that have complex criminogenic situations. Specifically, it extensively covers the legal foundations of crime prevention policy, innovative technologies in ensuring public safety, strengthening citizen participation, improving preventive conditions, and mechanisms of cooperation between local government bodies. Using South Korean programs such as "Community Safety," "Smart Policing," and "Crime Prevention Through Environmental Design (CPTED) " as examples, the article scientifically examines effective approaches to reducing the causes of crime, monitoring high-risk areas, and determining specific preventive measures. Additionally, practical proposals have been developed for adapting these mechanisms to local conditions.

Patriotism is a complex concept that refers to a love and loyalty for one's country. Patriotism is a concept that has been debated and discussed for centuries, yet it still remains a difficult and complex topic to define. The term "patriotism" has been used in various contexts and has different meanings for different people.

This article explains the semantic-syntactician pragmatic features of complex simple sentences with wrapped action nouns, and the inconsistency of form and content.

In teaching foreign language to engineering students is long, complex process as it requires learners to have better known L1 because L1 is a key to acquire FL. It is full understanding linguistics aspects of L1 enable learners to better understand FL. Without intervention of L1 in teaching foreign language, effect will be less, consequently, we should explain translation of FL in native language (Uzbek) in details, otherwise, acquisition of foreign language may be complex, long, and misunderstanding. Besides, teaching languages via computer assisted classes is highly demanding now due to computerization society. This paper deals with the issues focusing on some features of instructions to learn FL with the help of Information technology especially in translation activities. Some scholars stated their expressions on vocabulary acquisition in FL learning and its beneficial traits.