Articles with unsourced statements from March 2020

Harlan_Jay_Ellison

Harlan Jay Ellison (May 27, 1934 – June 28, 2018) was an American writer, known for his prolific and influential work in New Wave speculative fiction and for his outspoken, combative personality. His published works include more than 1,700 short stories, novellas, screenplays, comic book scripts, teleplays, essays, and a wide range of criticism covering literature, film, television, and print media. Some of his best-known works include the 1967 Star Trek episode "The City on the Edge of Forever", considered by some to be the single greatest episode of the Star Trek franchise (he subsequently wrote a book about the experience that includes his original teleplay), his A Boy and His Dog cycle (which was made into a film), and his short stories "I Have No Mouth, and I Must Scream" and "'Repent, Harlequin!' Said the Ticktockman". He was also editor and anthologist for Dangerous Visions (1967) and Again, Dangerous Visions (1972). Ellison won numerous awards, including multiple Hugos, Nebulas, and Edgars.

Phil_Ruffin

Phillip Gene Ruffin (born March 14, 1935) is an American businessman. He owns the Treasure Island Hotel and Casino and Circus Circus Hotel & Casino in Las Vegas, in addition to a number of other enterprises including hotels, casinos, greyhound racing tracks, oil production, convenience stores, real estate, and the world's largest manufacturer of hand trucks. He is also a business partner of former United States President Donald Trump, with whom he co-owns the Trump International Hotel Las Vegas. On the Forbes 2019 list of the world's billionaires, he was ranked No. 838 with a net worth of US$3.1 billion.

Denis_Brogniart

Denis Brogniart (French: [dəni bʁɔɲaʁ]; born 12 June 1967 in Dijon) is a French sport journalist and television host. He presents the show Koh-Lanta since 2002 and Formula One racing on TF1 with Marion Jollès Grosjean.

Jack_Buchanan

Walter John Buchanan (2 April 1891 – 20 October 1957) was a Scottish theatre and film actor, singer, dancer, producer and director. He was known for three decades as the embodiment of the debonair man-about-town in the tradition of George Grossmith Jr., and was described by The Times as "the last of the knuts." He is best known in America for his role in the classic Hollywood musical The Band Wagon in 1953.

August_Weismann

August Friedrich Leopold Weismann FRS (For), HonFRSE, LLD (17 January 1834 – 5 November 1914) was a German evolutionary biologist. Fellow German Ernst Mayr ranked him as the second most notable evolutionary theorist of the 19th century, after Charles Darwin. Weismann became the Director of the Zoological Institute and the first Professor of Zoology at Freiburg.
His main contribution involved germ plasm theory, at one time also known as Weismannism, according to which inheritance (in a multicellular animal) only takes place by means of the germ cells—the gametes such as egg cells and sperm cells. Other cells of the body—somatic cells—do not function as agents of heredity. The effect is one-way: germ cells produce somatic cells and are not affected by anything the somatic cells learn or therefore any ability an individual acquires during its life. Genetic information cannot pass from soma to germ plasm and on to the next generation. Biologists refer to this concept as the Weismann barrier. This idea, if true, rules out the inheritance of acquired characteristics as proposed by Jean-Baptiste Lamarck. However, a careful reading of Weismann's work over the span of his entire career shows that he had more nuanced views, insisting, like Darwin, that a variable environment was necessary to cause variation in the hereditary material.The idea of the Weismann barrier is central to the modern synthesis of the early 20th century, though scholars do not express it today in the same terms. In Weismann's opinion the largely random process of mutation, which must occur in the gametes (or stem cells that make them) is the only source of change for natural selection to work on. Weismann became one of the first biologists to deny Lamarckism entirely. Weismann's ideas preceded the rediscovery of Gregor Mendel's work, and though Weismann was cagey about accepting Mendelism, younger workers soon made the connection.
Weismann is much admired today. Ernst Mayr judged him to be the most important evolutionary thinker between Darwin and the evolutionary synthesis around 1930–1940, and "one of the great biologists of all time".