diff --git a/.obsidian/plugins/obsidian-pandoc-reference-list/data.json b/.obsidian/plugins/obsidian-pandoc-reference-list/data.json
index 9cfe8cdd..ffce53d9 100644
--- a/.obsidian/plugins/obsidian-pandoc-reference-list/data.json
+++ b/.obsidian/plugins/obsidian-pandoc-reference-list/data.json
@@ -5,7 +5,7 @@
     {
       "id": 1,
       "name": "Ma bibliothèque",
-      "lastUpdate": 1774391965524
+      "lastUpdate": 1774655080328
     }
   ],
   "renderCitations": true,
diff --git a/.obsidian/plugins/pdf-plus/data.json b/.obsidian/plugins/pdf-plus/data.json
index da8c16c1..f7c3ad05 100644
--- a/.obsidian/plugins/pdf-plus/data.json
+++ b/.obsidian/plugins/pdf-plus/data.json
@@ -263,9 +263,9 @@
   "newFileTemplatePath": "",
   "newPDFLocation": "current",
   "newPDFFolderPath": "",
-  "rectEmbedStaticImage": false,
+  "rectEmbedStaticImage": true,
   "rectImageFormat": "file",
-  "rectImageExtension": "webp",
+  "rectImageExtension": "png",
   "zoomToFitRect": false,
   "rectFollowAdaptToTheme": true,
   "rectEmbedResolution": 100,
diff --git a/attachments/Open problems in communication and computation (Cover, T. M., 1938-, Gopinath, B) (z-library.sk, 1lib.sk, z-lib.sk) 1.png b/attachments/Open problems in communication and computation (Cover, T. M., 1938-, Gopinath, B) (z-library.sk, 1lib.sk, z-lib.sk) 1.png
new file mode 100644
index 00000000..b5797623
Binary files /dev/null and b/attachments/Open problems in communication and computation (Cover, T. M., 1938-, Gopinath, B) (z-library.sk, 1lib.sk, z-lib.sk) 1.png differ
diff --git a/attachments/Open problems in communication and computation (Cover, T. M., 1938-, Gopinath, B) (z-library.sk, 1lib.sk, z-lib.sk).png b/attachments/Open problems in communication and computation (Cover, T. M., 1938-, Gopinath, B) (z-library.sk, 1lib.sk, z-lib.sk).png
new file mode 100644
index 00000000..b94bfb0c
Binary files /dev/null and b/attachments/Open problems in communication and computation (Cover, T. M., 1938-, Gopinath, B) (z-library.sk, 1lib.sk, z-lib.sk).png differ
diff --git a/désintégration audioactive.md b/désintégration audioactive.md
index f98babe3..3548107f 100644
--- a/désintégration audioactive.md	
+++ b/désintégration audioactive.md	
@@ -12,3 +12,21 @@ author:
 ---
 
 
+> [!definition] [[désintégration audioactive]]
+> La règle de définition est :
+> $a^{\alpha}b^{\beta}c^{\gamma}d^{\delta}\cdots \longrightarrow \alpha a\beta b\gamma c\delta d\cdots$
+^definition
+
+# Propriétés
+
+> [!proposition]+ 
+> Pour une étape :
+> $a^{\alpha}b^{\beta}c^{\gamma}d^{\delta}\cdots \longrightarrow \alpha a\beta b\gamma c\delta d\cdots$
+> Il est évident que :
+> $a\neq b,\quad b\neq c,\quad c\neq d,\dots$
+>  - dem Cela découle directement du fait que l'on choisit, à chaque fois, les plus grands $\alpha, \beta, \gamma, \delta\dots$ possibles (par exemple, $[111]$ ne sera jamais découpée en $[21,11]$)
+
+
+# Exemples
+
+
diff --git a/sources/1 - articles/.DS_Store b/sources/1 - articles/.DS_Store
new file mode 100644
index 00000000..5008ddfc
Binary files /dev/null and b/sources/1 - articles/.DS_Store differ
diff --git a/the weird and wonderful chemistry of audioactive decay.md b/the weird and wonderful chemistry of audioactive decay.md
index b281007f..0b6e08b5 100644
--- a/the weird and wonderful chemistry of audioactive decay.md	
+++ b/the weird and wonderful chemistry of audioactive decay.md	
@@ -1,10 +1,17 @@
 ---
 up:
+  - "[[désintégration audioactive|audioactive decay]]"
 tags:
+  - s/maths
 aliases:
-pdf:
+pdf: "[[sources/1 - articles/Open problems in communication and computation (Cover, T. M., 1938-, Gopinath, B) (z-library.sk, 1lib.sk, z-lib.sk).pdf]]"
 ---
-the weird and wonderful chemistry of audioactive decay
 
 
-![[sources/1 - articles/Open problems in communication and computation (Cover, T. M., 1938-, Gopinath, B) (z-library.sk, 1lib.sk, z-lib.sk).pdf#page=180&selection=65,0,100,9&height=200]]
+![[attachments/Open problems in communication and computation (Cover, T. M., 1938-, Gopinath, B) (z-library.sk, 1lib.sk, z-lib.sk).png]]
+
+![[attachments/Open problems in communication and computation (Cover, T. M., 1938-, Gopinath, B) (z-library.sk, 1lib.sk, z-lib.sk) 1.png]]
+
+
+
+