main.tex

\documentclass[twoside, 12pt, footinclude=true, headinclude=true, cleardoublepage=empty]{scrbook}

\include{others/preamble}

\addbibresource{references.bib}

\include{others/acronyms}

\begin{document}
    \frontmatter
    \include{others/prologue}

    %\fancyhf{} % clear all header and footers
    %\renewcommand{\headrulewidth}{0pt} % remove the header rule
    % \fancyfoot[LO, RE]{\thepage} % Left side on Odd pages; Right side on Even pages
    %\pagestyle{fancy}
    % \fancypagestyle{plain}{%
    % \fancyhf{}%
    %\renewcommand{\headrulewidth}{0pt}%
    % \fancyhf[lof,ref]{\thepage}%
    % }

    \setlength{\parskip}{1em} % set space between paragraphs
    \renewcommand{\baselinestretch}{1.2} % set line spacing

    \mainmatter
    \input{content/biological.tex}
    \input{content/computerscience.tex}
    \input{content/motivation.tex}
    \input{content/methods.tex}
    \input{content/results.tex}
    \input{content/conclusion.tex}
    \printbibliography
    \input{others/declaration}
\end{document}