Here is a question about this article: Karlheinz Brandenburg used a CD recording of Suzanne Vega's song "Tom's Diner" to assess and refine the MP3 compression algorithm. This song was chosen because of its nearly monophonic nature and wide spectral content, making it easier to hear imperfections in the compression format during playbacks. Some refer to Suzanne Vega as "The mother of MP3". This particular track has an interesting property in that the two channels are almost, but not completely, the same, leading to a case where Binaural Masking Level Depression causes spatial unmasking of noise artifacts unless the encoder properly recognizes the situation and applies corrections similar to those detailed in the MPEG-2 AAC psychoacoustic model. Some more critical audio excerpts (glockenspiel, triangle, accordion, etc.) were taken from the EBU V3/SQAM reference compact disc and have been used by professional sound engineers to assess the subjective quality of the MPEG Audio formats.
What is the answer to this question: What type of recording did Brandenburg use?
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So... CD

Here is a question about this article: Provide Campaign Assistance. Minority leaders are typically energetic and aggressive campaigners for partisan incumbents and challengers. There is hardly any major aspect of campaigning that does not engage their attention. For example, they assist in recruiting qualified candidates; they establish "leadership PACs" to raise and distribute funds to House candidates of their party; they try to persuade partisan colleagues not to retire or run for other offices so as to hold down the number of open seats the party would need to defend; they coordinate their campaign activities with congressional and national party campaign committees; they encourage outside groups to back their candidates; they travel around the country to speak on behalf of party candidates; and they encourage incumbent colleagues to make significant financial contributions to the party's campaign committee. "The amount of time that [Minority Leader] Gephardt is putting in to help the DCCC [Democratic Congressional Campaign Committee] is unheard of," noted a Democratic lobbyist."No DCCC chairman has ever had that kind of support."
What is the answer to this question: How much concern do minority leaders have for campaigning?
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So... hardly any major aspect of campaigning that does not engage their attention

Here is a question about this article: Persistent infections occur because the body is unable to clear the organism after the initial infection. Persistent infections are characterized by the continual presence of the infectious organism, often as latent infection with occasional recurrent relapses of active infection. There are some viruses that can maintain a persistent infection by infecting different cells of the body. Some viruses once acquired never leave the body. A typical example is the herpes virus, which tends to hide in nerves and become reactivated when specific circumstances arise.
What is the answer to this question: What never leave the body when acquired?
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So...
Some viruses