1 INTRODUCTION

2 BARYONIC EFFECTS IN SIMULATIONS  
2.1 OWLS Simulation Suite  
2.2 Eagle Simulation  
2.3 Massive Black-II Simulation  
2.4 Illustris Simulation  
2.5 Horizon-AGN Simulation  
2.6 Comparison of Power Spectra in Hydrodynamical versus DMO Simulations  

3 LIKELIHOOD ANALYSIS METHODOLOGY  
3.1 Theoretical Models  
3.2 Mock Observational Data  
3.3 Covariance Matrix  
3.4 Likelihood Formalism  

4 METHODS OF MITIGATING BARYONIC EFFECTS  
4.1 PCA in Difference Matrix  
4.2 Noise-weighted PCA – Cholesky Decomposition  
4.3 PCA in Fractional Difference Matrix  
4.4 HMcode  

5 PERFORMANCES OF BARYONIC MITIGATION TECHNIQUES  
5.1 PC Mode Exclusion versus Marginalizing Over PC Amplitude  
5.2 Comparison between Various PC Construction Methods  
5.3 PCA Framework versus HMcode  
5.4 Pushing to Even Smaller Angular Scales: ℓmax of 5000  
5.5 Including More AGN Prescriptions in the Training Set  

6 SUMMARY AND DISCUSSION