By taking over some of the work of the heart, VADs assist the heart by helping the ventricles pump blood, easing the workload of the heart in patients with heart failure. If the device is used to help (or unload) the left ventricle, it is called a left ventricular assist device (LVAD).
An assortment of villagers in Animal Crossing: New Leaf. Villagers are the main NPCs in the Animal Crossing series, and there are currently around 460 of them. They live simple, quiet lives scattered around the player's town. On the release of Wild World, villagers started to specialize in hobbies, such as fishing, finding fossils, collecting insects - to name but a few.
Regarding Leaf Pick-up. Please be patient as the Highway Department has 40 square miles to cover. We have four to five Leafers out daily. Unfortunately not all residents put their leaves out at the same time and our crews go street by street throughout the Town until the entire Town has been covered. We are unable to take requests for leaves as each leafer has a route they follow to cover all residents in the Town.