A answered. Atrial fibrillation can be caused by a number of different things that predispose the heart to arrhythmias. Most commonly, longstanding high blood pressure is the cause. Other causes include heart disease such as blockage in the coronary vessels or diseases such as pneumonia or COPD.
A board, typically with a hole for the thumb, which an artist can hold while painting and on which colors are mixed. 2. a. The range of colors used in a visual medium, in a picture, or by an artist: a limited palette.
Naive naÃ¯ve art is a classification of art that is often characterized by a childlike simplicity in its subject matter and. Technique while many naive naÃ¯ve, artists appear from, their works to have little or no formal, art training this is often. not trueharacteristics [edit]. Naive naÃ¯ve art is often seen as outsider art which is without a (formal or) little training or. Degree while this was true before the twentieth, century there are now academies for naive. naÃ¯ve art