Clinical trials typically have a primary objective or endpoint. Additional objectives and endpoints are secondary. The sample size calculation is based on the primary endpoint. Analysis involving a secondary objective has statistical power that is calculated based on the sample size for the primary objective. Some researchers use the terms…
Hamlet is melancholy, bitter, and cynical, full of hatred for his uncle’s scheming and disgust for his mother’s sexuality. A reflective and thoughtful young man who has studied at the University of Wittenberg, Hamlet is often indecisive and hesitant, but at other times prone to rash and impulsive acts. What…
Siva afi, or fire knife dancing is a tradition rooted in Samoan culture that incorporates the Samoan weapon nifo oti, or war knife. Our tribal performers twirl the weapon and showcase other acrobatic tricks that will have you on the edge of your seat as they literally set the stage…
Ever since researchers sequenced the chimp genome in 2005, they have known that humans share about 99% of our DNA with chimpanzees, making them our closest living relatives. What are humans closest genetic relatives? The chimpanzee and bonobo are humans’ closest living relatives. These three species look alike in many…
What Types of Jobs are Available in Italy Marketing, engineering, and IT management are growing fields in Italy. As well, skilled factory work and traditional artisanal work, such as woodworking and weaving, have strong demand. Northern Italy has some of the wealthiest regions of Europe, although Southern Italy is lagging…
Timber and clay have been the main building materials in Japanese house construction for hundreds of years. Timber forms the frame work, while the clay is used to wall the frame work. Concrete block is the most common material for the walls, both in cities and villages, but some large…
Lipase is an enzyme the body uses to break down fats in food so they can be absorbed in the intestines. Lipase is produced in the pancreas, mouth, and stomach. Lipases are a general class of enzymes that break down fat molecules. Fats, also called lipids, exist in many forms;…
impulse, law vs. anarchy, or the broader heading of good vs. evil. Throughout the novel, Golding associates the instinct of civilization with good and the instinct of savagery with evil. Each of these motifs serves to highlight an overarching dichotomy that exists as the action unravels—the conflict between human instincts…
A major environmental concern related to nuclear power is the creation of radioactive wastes such as uranium mill tailings, spent (used) reactor fuel, and other radioactive wastes. These materials can remain radioactive and dangerous to human health for thousands of years. Much like hydropower, the environmental impact of nuclear energy…
Material. Nerf foam is made from a solid, spongy cellular material produced by the reaction of polyester with a disocyanate, while carbon dioxide is liberated by the reaction of a carboxyl with the isocyanate. Original Nerf (styled NeRF) logo (1969–1990) Parker Brothers originally developed Nerf, beginning with a 4-inch (100…