A black panther is the melanistic color variant of any Panthera species. Black panthers in Asia and Africa are leopards (Panthera pardus) and black panthers in the Americas are black jaguars (Panthera onca).

Melanism

Melanism in the jaguar (Panthera onca) is conferred by a dominant allele, and in the leopard (Panthera pardus) by a recessive allele. Close examination of the color of these black cats will show that the typical markings are still present, but are hidden by the excess black pigment melanin, giving an effect similar to that of printed silk. This is called "ghost striping". Melanistic and non-melanistic animals can be littermates. It is thought that melanism may confer a selective advantage under certain conditions since it is more common in regions of dense forest, where light levels are lower. Recently, preliminary studies also suggest that melanism might be linked to beneficial mutations in the immune system.

Leopard

The Javan leopard was initially described as being black with dark black spots and silver-grey eyes.

The black panther (Slovene: črni panter), also known as the Carantanian panter (karantanski panter) after the Medieval principality of Carantania, is a Carinthian historical symbol, which represents a stilized heraldic panther. As a heraldic symbol, it appeared on the coat of arms of the Carinthian Duke Herman II as well as of the Styrian Margrave Ottokar III. In this region it was most frequently imaged on various monuments and tombstones. The symbol can still be found in the coat of arms of the Austrian state of Styria, although the colours have changed. Since 1991, there have been several proposals to replace the Slovenian coat of arms with the black panther.

Origin

The origins of the symbol are unclear. According to the archaeologist and historian Andrej Pleterski, it appears for the first time in the coat of arms of the Sponheim family from Carinthia. The historian Peter Štih has denied any historically attested relation to symbols of Carantania. On the contrary, the economist Jožko Šavli, an adherent of the autochthonist Venetic theory, believed that it originated from the Roman province of Noricum, was later adopted by Carantania, and then by the Styrian nobility.

The Black Panther (T'Challa) is a fictional superhero appearing in American comic books published by Marvel Comics. Created by writer-editor Stan Lee and penciller and co-plotter Jack Kirby, he first appeared in Fantastic Four #52 (July 1966). He is the first black superhero in mainstream American comics, debuting several years before such early African-American superheroes as Marvel Comics' the Falcon and Luke Cage, and DC Comics' Tyroc, Black Lightning, and Green Lantern John Stewart. The Black Panther was ranked the 79th greatest comic-book character by Wizard magazine. IGN ranked the character the 51st greatest comic-book hero.Chadwick Boseman will play the Black Panther in several scheduled films as a part of the Marvel Cinematic Universe.

Concept and creation

Name

The Black Panther's name predates the October 1966 founding of the Black Panther Party, though not the black panther logo of the party's predecessor, the Lowndes County Freedom Organization, nor the segregated World War II Black Panthers Tank Battalion. He is the first black superhero in mainstream comic books; virtually no black heroes were created before him, and none with actual superpowers. These included the characters in the single-issue, low-distribution All-Negro Comics #1 (1947); Waku, Prince of the Bantu, who starred in his own feature in the omnibus title Jungle Tales, from Marvel's 1950s predecessor, Atlas Comics; and the Dell Comics Western character Lobo, the first black person to star in his own comic book. Previous non-caricatured Black supporting characters in comics include U.S. Army infantry private Gabriel Jones of Sgt. Fury and his Howling Commandos.

He is the third-person singular masculine nominative case pronoun in Modern English.

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7 Horns 7 Eyes is an American Christian progressive death metal band based out of Seattle, Washington. The band formed in 2006 and released their debut album Throes of Absolution on April 24, 2012, on Century Media Records in North America and Basick Records in Europe. On January 10, 2014, after being silent for nearly two years, Vocalist JJ Polachek announced the band is working on three potential releases for 2014 and 2015. It was described as large a conceptual work.

History

Formation and 7 Horns 7 Eyes

In 2006, friends, Kyle Wood, Brandon and Aaron Smith, Chris Weiford, and Steven Bye started a band, that they named 7 Horns 7 Eyes, which comes from Revelation 5:6 in the Bible. They recorded their self titled debut EP in 2006 and released it in 2007. After 7 Horns 7 Eyes was released, Weiford and Bye left the band and were replaced by friend Sean Alf, and Ryan Wood, Kyle's brother.

"Huntour", Convalescence EP, and Throes of Absolution

In 2009, the band was selected for Demon Hunter's first annual "Huntour" along with the resurrected Living Sacrifice, The Famine, Focused, and Advent. After the "Huntour" the band began to record their first album and released the first single of the album, "The Vindicator". After recording the whole album, Kyle Wood left to get married. Aaron Smith then contacted his friend JJ "Shiv" Polachek of Monotheist, to be the new vocalist and re-record vocals. In 2011, the band released Convalescence EP and in 2012, their debut album, Throes of Absolution was released. After the release, Sean Alf left the band, and was replaced by Zack Uidl.

Hematoxylin and eosin stain or haematoxylin and eosin stain (H&E stain or HE stain) is one of the principal stains in histology. It is the most widely used stain in medical diagnosis and is often the gold standard; for example when a pathologist looks at a biopsy of a suspected cancer, the histological section is likely to be stained with H&E and termed "H&E section", "H+E section", or "HE section". A combination of hematoxylin and eosin, it produces blues, violets, and reds.

Principle

The staining method involves application of hemalum, a complex formed from aluminium ions and hematein (an oxidation product of hematoxylin). Hemalum colors nuclei of cells (and a few other objects, such as keratohyalin granules and calcified material) blue. The nuclear staining is followed by counterstaining with an aqueous or alcoholic solution of eosin Y, which colors eosinophilic structures in various shades of red, pink and orange.

The staining of nuclei by hemalum is ordinarily due to binding of the dye-metal complex to DNA, but nuclear staining can be obtained after extraction of DNA from tissue sections. The mechanism is different from that of nuclear staining by basic (cationic) dyes such as thionine or toluidine blue. Staining by basic dyes occurs only from solutions that are less acidic than hemalum, and it is prevented by prior chemical or enzymatic extraction of nucleic acids. There is evidence to indicate that coordinate bonds, similar to those that hold aluminium and hematein together, bind the hemalum complex to DNA and to carboxy groups of proteins in the nuclear chromatin.