the lamina to become a secondary vein The sequence of events in the ontogeny of major secondary veins is: (1) an original procambial strand develops acropetally and becomes the precursor of the first vascular bundle of the midrib region of the lamina, (2) ground tissue at the forefront of...
But we can observe evolutionary events, turning points leading to an unstoppable movement toward truth. Here are two: In May, the US Army flushed some propaganda down their official tweetlet about the wondrous effects of life in the Empire’s Army on one soldier, and then asked for comments...
Chris has a master's degree in history and teaches at the University of Northern Colorado. Cite this lesson The Civil War was fought between the Union and Confederacy, but who actually fought on each side? In this lesson, we'll talk about how the map of America changed across the Civi...
R. & Porter, S. R. The Opportunity Atlas: Mapping The Childhood Roots of Social Mobility (National Bureau of Economic Research, 2018). Bell, A., Chetty, R., Jaravel, X., Petkova, N. & Van Reenen, J. Who becomes an inventor in America? The importance of exposure to innovation. Q....
There are, however, variations in the long- and short-term trends for major depression by country, which suggests that the rates in these countries may have been affected by differing historical, social, economic, or biological environmental events. The linking of demographic, epidemiologic, ...
The Soviet Union’s fear of America’s nuclear weapons and refusal to share their nuclear secrets The Soviet Union’s actions in Eastern Germany, in the Soviet zone The USSR’s aim to promote communism across the world and their expansion into Eastern Europe ...
Ch 16. Global Balances of Power & Influence... Ch 17. History of Industrial & Urban... Ch 18. Progressivism & Reform in... Ch 19. U.S. Imperialism & Role in World War... Ch 20. Major Events of World War II Ch 21. The Roaring Twenties, Great Depression... Ch 22. The Inter...
7 Chronicle of Major Events 1949 to 2020 1949 Land Revolution and 'Three Supplies-based Vehicles' to Alle- viate Protracted Inflation The land revolution of "equal distribution" agrarian system embodied the fundamental demand of traditional peasants for the past several millennia. The war spurred ...
Since 2017, Retail Dive has tracked major bankruptcies in the U.S. retail industry. Over the years, we’ve chronicled the long decline of once-dominant chains like Sears, and the unexpected and swift demise of others, like Lord & Taylor. Even in that short timeframe, some retailers have...
Many of the changes inflicted on the planet — especially our oceans — will be "irreversible for centuries to millennia," and continued warming will lead to an acceleration of "extreme events unprecedented in the observational record," it warns. U.N. Secretary General Antonio...