Biochemically, the E2 pheromone blend was similar to that of large females, and it differed significantly from Shams. For the second experiment, we implanted males with 17β-estradiol in 2007 but removed the implants the following year (2008; Removal). That same year, we implanted a new ...
My Ph.D. supervisor, E.E. van Tamelen, was one of the most creative chemists of his generation, and he thought about the big problems. Since these are also the hardest problems, working for vT contributed even ...
William lived as a philosopher and a Franciscan monk, a pious man who took very seriously his vow of poverty, meaning he lived using only what was absolutely necessary. One might get the impression that it was this vow of poverty — a form of simplicity — that gave William his big idea...
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Not everyone embraced the field. Some critics complained that the new field overemphasized the scientific processes of cooking and failed to acknowledge intangible aspects of the craft, such as a chef's intuition or spontaneity. Others simply said it was too difficult and complex for everyday cooks...
There hasn't been any confirmed human clone created to date. When discussing cloning in the sense of doing so to make a duplicate of an organism, we refer to it as reproductive cloning. If human reproductive cloning proceeds, the primary method scientists will likely use is ...
1880, was created in response to public awareness of contaminated drinking water in Britain. Today, the Royal Doulton company is better known for its fine china but still produces ceramic and carbon filters. Doulton USA Clay ceramic filters work in a fashion similar to the desalination ...
However, government control isn't always in the best interests of all people. In the 1930s, to irrigate cotton fields, the Soviet government created canals to divert the rivers that fed the Aral Sea (located between Kazakhstan and Uzbekistan). As a result, the surface area of the sea has...
Question 3: Where Did the First Living Cell Come From? The Future of Evolution The Basic Process of Evolution The basic theory of evolution is surprisingly simple. It has three essential parts: It is possible for the DNA of an organism to occasionally change, or mutate. A mutation changes...