During this time, the most common cause of irregular menstrual cycles is immaturity of the HPO axis, but additional etiologies should be considered, including pregnancy, PCOS, hypothyroidism, hyperprolactinemia, and functional hypothalamic dysfunction.
1 Cubism was invented around 1907 in Paris by Pablo Picasso and Georges Braque. 2  Cubism was the first abstract style of modern art. 3  A Cubist painting ignores the traditions of perspective drawing and shows you many views of a subject at one time.4  The Cubists introduced collage into painting. Cubism was the first abstract style of modern art. 2  A Cubist painting ignores the traditions of perspective drawing and shows you many views of a subject at one time. 3  The Cubists introduced collage into painting.
Cubism paved the way for many different modern movements of art in the 20th century. When was the Cubism movement? The movement started in 1908 and lasted through the 1920s. What are the characteristics of Cubism? There were two main types of Cubism: Analytical Cubism - The first stage of the Cubism movement was called Analytical Cubism. In this style, artists would study (or analyze) the subject and break it up into different blocks. They would look at the blocks from different angles.