A letter report issued by the General Accounting Office with an abstract that begins "Since 1980, the Winter and Summer Olympic and Paralympic Games hosted in the United States have increased in size and magnitude, as have the total direct costs to plan and stage them. The reported direct costs to plan and stage the games discussed in this report ranged from $363 million to more than $2.4 billion. Although the total dollar amount of federal funding and support has increased, the total federal share of the reported total direct costs to plan and stage the games has decreased. Since 1980, the amount of funding and support provided by state and local governments has increased. Generally, federal funding and support for the total direct costs of each of these games was either specifically designated by Congress or approved by the federal agencies."

Testimony issued by the General Accounting Office with an abstract that begins "Congress, law enforcement, and others have expressed concern about the misuse of Social Security numbers (SSNs). Death information collected by the Social Security Administration (SSA), including the SSN, generally reaches financial institutions and other entities within one to two months of a person's death. SSA and the National Technical Information Service could improve the timeliness of the distribution of the Death Master File. Improving the timeliness of death information to the financial services industry would help to narrow the window of time that a criminal has to open new accounts using a deceased individual's identity. Additional education for the financial services industry about the availability and contents of the Death Master File would also be helpful. Providing timely death information and making financial institutions more aware of a reliable source of such information could deter criminals from using deceased individuals' social security numbers to obtain false identities for fraudulent activities."

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We determined the complete mtDNA sequences of the millipedes Narceus annularus and Thyropygus sp. (Arthropoda: Diplopoda) and identified in both genomes all 37 genes typical for metazoan mtDNA. The arrangement of these genes is identical in the two millipedes, but differs from that inferred to be ancestral for arthropods by the location of four genes/gene clusters. This novel gene arrangement is unusual for animal mtDNA, in that genes with opposite transcriptional polarities are clustered in the genome and the two clusters are separated by two non-coding regions. The only exception to this pattern is the gene for cysteine tRNA, which is located in the part of the genome that otherwise contains all genes with the opposite transcriptional polarity. We suggest that a mechanism involving complete mtDNA duplication followed by the loss of genes, predetermined by their transcriptional polarity and location in the genome, could generate this gene arrangement from the one ancestral for arthropods. The proposed mechanism has important implications for phylogenetic inferences that are drawn on the basis of gene arrangement comparisons.

Nonlinear, kinetic simulations of Stimulated Raman Scattering (SRS) for laser-fusion-relevant conditions present a bursting behavior. Different explanations for this regime has been given in previous studies: Saturation of SRS by increased nonlinear Landau damping [K. Estabrook et al., Phys. Fluids B 1 (1989) 1282] and detuning due to the nonlinear frequency shift of the plasma wave [H.X. Vu et al., Phys. Rev. Lett. 86 (2001) 4306]. Another mechanism, also assigning a key role to the trapped electrons, is proposed here: The break-up of the plasma wave through the trapped-particle instability.

This paper develops a clear procedure for solving the nonlinear Vlasov-Maxwell equations for a one-component intense charged particle beam or finite-length charge bunch propagating through a cylindrical conducting pipe (radius r = r(subscript)w = const.), and confined by an applied focusing force. In particular, the nonlinear Vlasov-Maxwell equations are Lorentz-transformed to the beam frame ('primed' variables) moving with axial velocity relative to the laboratory. In the beam frame, the particle motions are nonrelativistic for the applications of practical interest, already a major simplification. Then, in the beam frame, we make the electrostatic approximation which fully incorporates beam space-charge effects, but neglects any fast electromagnetic processes with transverse polarization (e.g., light waves). The resulting Vlasov-Maxwell equations are then Lorentz-transformed back to the laboratory frame, and properties of the self-generated fields and resulting nonlinear Vlasov-Maxwell equations in the laboratory frame are discussed.

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B-roll video footage from the KXAS-TV/NBC 5 television station in Fort Worth, Texas, covering a news story.

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Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.

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