A skew decagon is a skew polygon with 10 vertices and edges but not existing on the same plane. The interior of such an decagon is not generally defined. A "skew zig-zag decagon" has vertices alternating between two parallel planes.
A regular skew decagon is vertex-transitive with equal edge lengths. In 3-dimensions it will be a zig-zag skew decagon and can be seen in the vertices and side edges of a pentagonal antiprism, pentagrammic antiprism, and pentagrammic crossed-antiprism with the same D, [2,10] symmetry, order 20.
These can also be seen in these 4 convex polyhedra with icosahedral symmetry. The polygons on the perimeter of these projections are regular skew decagons.
To a Mouse
"To a Mouse, on Turning Her Up in Her Nest with the Plough" (also known as just "To a Mouse") is a poem written by Robert Burns. The poem was written in Scots in 1785. "To a Mouse" is about a young man who accidentally overturns the soil of a mouse’s nest.
John Steinbeck named his novella "Of Mice and Men" after a line in the seventh stanza of the poem. This line is: "The best laid schemes o' mice an' men / Gang aft agley" ("The best laid schemes of mice and men / Go often askew").
Tom Petty and the Heartbreakers
Tom Petty And The Heartbreakers is an American rock band from Gainesville, Florida. Tom Petty And The Heartbreakers have six members in the band; the current band members are Tom Petty, Mike Campbell, Benmont Tench, Ron Blair, Scott Thurston and Steve Ferrone. The band received a star on the Hollywood Walk of Fame in 1999. The band have won many Grammy Awards and were also the recipients of 2006's Billboard Century Award.
So far as of 2011, Tom Petty and the Heartbreakers have released 12 Studio albums:
Echiura
The Echiura, or spoon worms, are a small group of marine animals. They are often considered to be a group of annelids, although they lack the segmented structure found in other members of that group, and so may also be treated as a separate phylum.
However, phylogenetic analyses of DNA sequences place echiurans and Sipuncula within the Annelida.
Acoelomorpha
The Acoelomorpha are a group of animals with features that were once put in the phylum Platyhelminthes (flatworms).
In 2004 molecular studies showed that this was wrong.
Now it is clear that their closest relatives are the Xenoturbellida, and the two groups make up the proposed new phylum, the Xenacoelomorpha.
Most researchers believe them to be basal among the bilateria, slightly more derived than the Cnidaria. Recent results suggest that they (along with "Xenoturbella") may lie near the base of the deuterostomes. An ongoing collaborative research project has "the researchers ... confident that they can reach an agreement about where acoels fit in evolutionary history".
Acoels are almost entirely marine, living between grains of sediment, swimming as plankton, or crawling on algae. Acoels have a statocyst, which presumably helps them orient to gravity. Their soft bodies make them difficult to classify.
Atlantic 10 Conference
The Atlantic 10 Conference (A10) is a NCAA conference that plays in NCAA Division I. The conference is headquartered in Newport News, Virginia and features universities and colleges from the Eastern and Midwestern United States.
The A10 was founded by eight Eastern schools in 1975 as the Eastern Collegiate Basketball League, and began play in 1976. It first played only men's basketball, but added other sports in 1977 and became the Eastern Athletic Association. Despite its official names, the conference was more often called the Eastern 8. By 1982, the conference had 10 schools, and it became the Atlantic 10.
Although the conference has had "10" in its name since 1982, it has not had 10 members since Penn State left for the second and final time in 1991. Since then, the A10 has had anywhere from 8 to 16 full members (schools that play most of their sports in the conference). From 1997 to 2006, the A10 ran a football league, but it dropped the sport when the Colonial Athletic Association began a football league.
Fourteen schools are full members. Most of the members are private schools; seven are run by the Catholic Church.
Two schools are "associate members" that play only one sport in the A10.
Ten schools were once full members of the A10, but are no longer in the conference.
Chess rating system
A chess rating system is a system used in chess to estimate the strength of a player, based on his performance against other players. They are used by all national chess organisations, and by FIDE, the International Chess Federation. In these systems a higher number indicates a stronger player. In general, a player's rating goes up if he performs better than expected and down if he performs worse than expected. The Elo rating system is used by FIDE and by many countries.
The first modern rating system was used by the Correspondence Chess League of America in 1939. Soviet player Andrey Khachatoruv proposed a similar system in 1946. The first one that made an impact on international chess was the Ingo system in 1948. The USCF (United States Chess Federation) adopted the Harkness system in 1950. Shortly after, the British Chess Federation started using a system devised by Sir Richard Clarke, a statistician and senior civil servant. The USCF switched to the Elo rating system in 1960, which was adopted by FIDE in 1970.<ref name="H/W">Hooper, David & Whyld, Kenneth 1992. "The Oxford Companion to Chess". 2nd ed, Oxford University Press. p332 </ref>
The principle which lies behind a grade is this. The grade is a prediction of how well a player will perform against other players of different grades. If the player does better than predicted, his grade goes up; if he does worse, his grade goes down. An arithmetic calculation shows by how much the player's grade changes. Today, all results are fed into a computer database, and computer software does all the calculations. Then the list is published as a 'grading list'.
Great white pelican
The great white pelican ("Pelecanus onocrotalus") is also known as the Eastern white pelican, white pelican, or old world white pelican. They are the second largest birds in the pelican family, with only the Dalmatian pelican larger than them.
The pelican breeds in southeastern Europe, south Asia, and Africa. They are most common in Africa, as 80% of the 90,000 breeding pairs mate there. However, because of climate change and humans using the wetlands they live in, some populations of great white pelicans are declining.
Lipase
A lipase is an enzyme that catalyzes the formation or cleavage (hydrolysis) of fats (lipids).
Lipases are essential for the digestion, transport and processing of lipids in the diet. Fats, oils and triglycerides are present in most (perhaps all) living organisms. Genes coding for lipases are even present in certain viruses.
Nikolai Volkoff
Josip Nikolai Peruzović (14 October 1947 – 29 July 2018) better known by his ring name, Nikolai Volkoff, was a Yugoslavian professional wrestler who was best known for wrestling with World Wrestling Federation. Although the character he played was portrayed as Russian, He actually came from Croatia and has a mixed background that was not entirely Russian. He was inducted into the WWE Hall of Fame in 2005 by Jim Ross.
Volkoff died on July 29, 2018 at the age of 70 just days after being released from a hospital in Glen Arm, Maryland where he had been treated for dehydration.
Volkoff held many championships during his professional wrestling career:
Palate
The palate is the roof of the mouth in humans and other mammals. It separates the oral cavity (mouth) from the nasal cavity.
A similar structure is found in crocodilia, but, in most other tetrapods, the oral and nasal cavities are not truly separate.
The palate is divided into two parts, the anterior bony hard palate, and the posterior fleshy soft palate or velum.