diff --git a/.gitignore b/.gitignore
index a229044..5dbf1b5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,7 +9,6 @@ __pypackages__/
 build/
 develop-eggs/
 dist/
-downloads/
 eggs/
 .eggs/
 lib/
@@ -40,9 +39,6 @@ MANIFEST
 *.ipynb
 .ipynb_checkpoints/
 
-# Numerical results
-tests/
-
 # Paraview state files
 *.pvsm
 
@@ -55,5 +51,9 @@ tests/
 # published article exception and
 # TeX exceptions
 !/tex/**/*.png
+!conferences/**/*
+conferences/**/*.synctex.gz
+conferences/**/*.aux
+conferences/**/*.log
+
 !article_published.pdf
-!conferences/
diff --git a/conferences/cbme2022/CMBE21_ale.pdf b/conferences/cbme2022/CMBE21_ale.pdf
new file mode 100644
index 0000000..4c774a9
Binary files /dev/null and b/conferences/cbme2022/CMBE21_ale.pdf differ