PPB Definition - Parts Per Billion

PPB stands for parts per billion. One part per billion is one part of solute per one billion parts solvent. PPB is a commonly used unit of concentration for very small values. The parts per notation is not part of the SI system of units. The notation describes dimensionless quantities. The ppb notation is most often seen in physics and engineering. In chemistry, the use of SI-compliant units is encouraged. Source Schwartz and Warneck (1995). Units for Use in Atmospheric Chemistry. Pure Appl. Chem. 67: 1377–1406.

The Catastrophe Known as “Hip Hop” Essay - 1626 Words

Through the eyes of a struggling young African American female desperately seeking for sense of her heritage, Hip Hop is all she is able to hold on to. However, as courageous writers Andreana Clay and Michael Dyson attempt to unearth deeply embedded misconceptions of our seemingly normal Hip Hop culture, her perceptions are exposed to the shattering truth that Hip Hop has become a queer identity revolting platter which serves up plagues called homophobia, sexism, racism, and violence. Hip hop, once her beloved escape is now ravaging her community with broken practices, devastated systems, crushed philosophies, and immoral ideologies. The mortifying reality is that her love Hip Hop has transformed into corrupt factory distributing self†¦show more content†¦(Ford, 2011) Was Malik’s reaction uncalled for? According to the progressing Hip Hop culture, his behavior was supported by concrete reasoning. Dyson’s notion that homophobia is caused by straight men’s hate of sharing so many analogous characteristics with gay men holds to be true in this sense. In Hip Hop, it is acceptable to wear your pants so low beneath your butt that it impedes your ability to walk properly, but heaven forbid that someone points out that you are giving other men easy access to your butt. It is simply the fact that gay men upset the social order of straight men’s lives. Hip Hop is fashioning a culture filled with young men who reject some of the identical attributes they themselves display on a daily basis. I find it quite mystifying to promote revulsion of something that is intrinsically a part of you. Consequently, Hip Hop is the poster child for a culture occupied by terror of the self. If she ever tries to leave again ima tie her to the bed and set this house on fire. –Eminem. The conception that sexism is entrenched in Hip Hop culture is one far from concealed. The deliberate manner in which Hip Hop music presents the notion of a woman is quite disturbing. Growing up in culture where a woman’s sole purpose is established as seeking approval from a man, African American young ladies are being manipulated to develop a sense of disgust for them. When Dyson presented the case of the Spellman girls vs. RapperShow MoreRelatedAnalysis Of Rio De Janeiro And Rio s Crisis Of Social Exclusion And Violence1644 Words   |  7 Pagesfifth are forced to live. Burdened with insufficient education, healthcare, transportation, safety, and jobs, the residents of the favelas gather as a community to escape from the tedious and harsh realities of everyday life. By orchestrating parties known as Bailes where this electronic dance music is played, Rio’s poorest com munities convene to form a sense of unity and embrace the favela they live in by briefly reshaping it into an exciting idealized place free of poverty and violence. 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Untitled Document Free Essays

Manhattan project Zen Jeez In World War II, the Japanese had attacked pearl harbor, after they attacked, America decided to strike back harder, with the Manhattan project. The Mann Tanat project was made up of a team of scientist who had the duty of creating the b mob. Even Albert Einstein was included in making the bomb. We will write a custom essay sample on Untitled Document or any similar topic only for you Order Now The bomb was complex Ted in may 1946, and was tested in Arizona. The test was successful and they mad e 2 more bombs to drop on Hiroshima and Nagasaki. In march 1 945, Albert Einstein write a letter to FED regarding the bomb. The teeter talked about a new member of the project, Dry. Sailor, and of his work effort. He says that his presence must not be known by the public for reasons unknown. Einstein also says that he is a reliable man and he can help them cry eat the bomb. This information was never put out to the public until the war was over. Before the scientist were done with the bomb, they wrote a letter thanking America for the chance to make the bomb. They also wrote there concerns ABA out the project and about a chance of a misfire or of the atomic energy of the boo b. How to cite Untitled Document, Papers