An abstract of my thesis

This graduate qualification thesis is about the Ecuadorian youth slang and the problems problem of with its translation into Russian.
The study consists of the introduction, two chapters, conclusion and a list of references including 40 titles, two annexes and it amounts to a total of 112 pages. The material for the empirical study was a list of 219 lexical units selected from non-professional dictionaries and lists of youth slang of Quito and Guayaquil.
The first chapter deals with the theoretical aspects of youth slang, theory and the methods of its translation. The second chapter describes the survey results: only four units in the list correspond to exclusively youth slang, the rest is colloquial or low-colloquial vocabulary. The conversational text and the colloquial units were translated into Russian.
In the conclusion some general ideas about the Ecuadorian youth slang and its translation are described. The annexes contain the survey data and the translated vocabulary.

An abstract of my thesis

This graduate qualification thesis discusses Ecuadorian youth slang and the problems related to its translation into Russian.
The study consists of the introduction, two chapters, a conclusion, and a list of references including 40 titles, two annexes, and amounts to a total of 112 pages. The material for the empirical study was a list of 219 lexical units selected from non-professional dictionaries and lists of youth slang of Quito and Guayaquil.
The first chapter deals with the theoretical aspects of youth slang, theory <[Maybe cut this out because you mention theoretical aspects and theory. Seems repetitive?]and methods of its translation. The second chapter describes the survey results. Only four units in the list correspond to exclusively youth slang, while the rest is colloquial or low-colloquial vocabulary. The conversational text and the colloquial units were translated into Russian.
In the conclusion some general ideas about the Ecuadorian youth slang and its translation are described. The annexes contain the survey data and the translated vocabulary.

[Maybe use "appendices" instead of "annexes"]