That portion of the electromagnetic spectrum immediately below the visible range and extending into the x-ray frequencies. The longer wavelengths (near-UV or biotic or vital rays) are necessary for the endogenous synthesis of vitamin D and are also called antirachitic rays; the shorter, ionizing wavelengths (far-UV or abiotic or extravital rays) are viricidal, bactericidal, mutagenic, and carcinogenic and are used as disinfectants
--subdivision Black authors under headings for individual literatures and genres; and subdivision African American authors under headings in the field of American literature, e.g. English poetry--Black authors; Drama--Black authors; American literature--African American authors
Black lives matter movement -- Canada : Until we are free : reflections on Black Lives Matter in Canada / edited by Rodney Diverlus, Sandy Hudson, and Syrus Marcus Ware
Black lives matter movement -- Fiction : I am Alfonso Jones / written by Tony Medina ; illustrated by Stacey Robinson and John Jennings ; foreword by Bryan Stevenson
2017
1
Black lives matter movement -- Great Britain : Ashley Banjo : Britain in black and white / directed by Eddie Hutton-Mills, Stephanie Wessel ; produced by Eddie Hutton-Mills, Stephanie Wessel, Uplands Television
Black lives matter movement -- Latin America : Black lives matter in Latin America : continuities in racism, cross-national resistance and mobilization in the Americas / Cloves Luiz Pereira Oliveira, Gladys Lanier Mitchell-Walthour, Minion K.C. Morrison, editors
2024
1
Black lives matter movement -- Philosophy : The movement for Black lives : philosophical perspectives / edited by Brandon Hogan, Michael Cholbi, Alex Madva, and Benjamin S. Yost
Black Madonnas -- Europe : The Black Madonna in Latin America and Europe : tradition and transformation / Małgorzata Oleszkiewicz-Peralba
2007
1
Black Madonnas -- Latin America : The Black Madonna in Latin America and Europe : tradition and transformation / Małgorzata Oleszkiewicz-Peralba
2007
1
Black magic. : Evil eye, Jinn possession, and mental health issues : an Islamic perspective / G. Hussein Rassool
2018
1
Black Magic (Yacht) : TeamThink: team New Zealand : the "Black Magic" of management behind the 1995 America's Cup success / by Pete Mazany ; [illustrations by Nigel Gormly ; edited by the VisionPlus team, Stephen Stratford]
1995
1
Black mamba. : Deadly 60: South Africa 1 - Ep 1 of 20 / Director: Brickell, James
Black market -- Africa, West : Transnational trafficking and the rule of law in West Africa : a threat assessment / [lead researcher and author Ted Leggett]
2009
1
Black market -- Anecdotes : Stolen, smuggled, sold : on the hunt for cultural treasures / Nancy Moses
