Which form of sonnet uses a volta at the beginning of a sestet to introduce a contrasting idea?

In a piece, the volta is the turn of thought or contention: in Petrarchan or Italian works it happens between the octave and the sestet, and in Shakespearean or English before the last couplet.  

Italian work utilizes a volta toward the start of a sestet to present a differentiating thought.  

The Petrarchan or Italian piece, named after the fourteenth century Italian artist Petrarch, has the rhyme conspire ABBAABBA CDECDE. Variation rhyme plans for the sestet likewise incorporate CDCDCD and CDEDCE. There is normally a delay or break in thought between the octave and sestet called the volta, or turn.

answer; i do believe its (wife); good luck

the industrial development of cities in the ruhr area in the nineteenth century is described. the research was based on english and german language sources. several factors that shaped growth and paths of the cities were categorized and analyzed. they are locations, resources, traditions, entrepreneurs, and technological developments. locations and resources were the most important among them; other factors may be regarded as consequences from locations and resources. among the cities, bochum, essen, gelsenkirchen, and dortmund had the richest resources and most favorable locations in the transportation network and grew to be the largest cities in the ruhr area near the end of the nineteenth century. riverside location was also a favorable factor for the development, as shown in the development of duisburg on the confluence of rhine and ruhr. resource distribution can explain the rise of textile industry, metallurgical industry, and coal and iron industries, and the northward progression of the mining industry. tradition was an important factor for cities such as krefeld, barmen, elberfeld, solingen, and remscheid, which experienced development based on their traditions through the nineteenth century. various entrepreneurs exerted influences within and beyond the local level over the ruhr area. technological development stimulated the northward progression of the mining industry and the deep connection between the coal and the iron industries.