Advances in Electron Microscopy and single-particle reconstruction have led to results at increasingly high resolutions. This has opened up the possibility of complete automation of single particle reconstruction. Main bottleneck in automation of single particle reconstruction is manual selection of particles in the micrograph. This paper describes a simple but efficient approach for segmentation of particle projections in the micrographs obtained using cryo-electron microscope. Changing the shape of objects to facilitate segmentation from the cluster and reconstructing its actual shape after isolation is successfully attempted. Both low-level and high-level processing techniques are used and the whole process is made automatic. Over 90 percent success in automatic particle picking is achieved. Several areas for improvement and future research directions are discussed.

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This report will introduce a newcomer to the Washington, D.C., metropolitan area to sources of general interest, neighborhoods, housing, and public transportation. The intended audience is congressional staff needing short-term or summer housing, although many of the sources given may also be helpful for those needing more than a three- to six-month lease. Sources suggested are often accessible by their Internet addresses.

The ''Seismic Evaluation of Hydrocarbon Saturation in Deep-Water Reservoirs'' (Grant/Cooperative Agreement DE-FC26-02NT15342) began September 1, 2002. During this second quarter: A Direct Hydrocarbon Indicator (DHI) symposium was held at UH; Current DHI methods were presented and forecasts made on future techniques; Dr. Han moved his laboratory from HARC to the University of Houston; Subcontracts were re-initiated with UH and TAMU; Theoretical and numerical modeling work began at TAMU; Geophysical Development Corp. agreed to provide petrophysical data; Negotiations were begun with Veritas GDC to obtain limited seismic data; Software licensing and training schedules were arranged with Paradigm; and Data selection and acquisition continues. The broad industry symposium on Direct Hydrocarbon Indicators was held at the University of Houston as part of this project. This meeting was well attended and well received. A large amount of information was presented, not only on application of the current state of the art, but also on expected future trends. Although acquisition of appropriate seismic data was expected to be a significant problem, progress has been made. A 3-D seismic data set from the shelf has been installed at Texas A&M University and analysis begun. Veritas GDC has expressed a willingness to provide data in the …

We introduce a numerical model for the simulation of nuclear flames in Type Ia supernovae. This model is based on a low Mach number formulation that analytically removes acoustic wave propagation while retaining the compressibility effects resulting from nuclear burning. The formulation presented here generalizes low Mach number models used in combustion that are based on an ideal gas approximation to the arbitrary equations of state such as those describing the degenerate matter found in stellar material. The low Mach number formulation permits time steps that are controlled by the advective time scales resulting in a substantial improvement in computational efficiency compared to a compressible formulation. We briefly discuss the basic discretization methodology for the low Mach number equations and their implementation in an adaptive projection framework. We present validation computations in which the computational results from the low Mach number model are compared to a compressible code and present an application of the methodology to the Landau-Darrieus instability of a carbon flame.

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Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.

Weekly newspaper from Sanger, Texas that includes local, state, and national news along with extensive advertising.

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.

This report contains the information related to the fishery, aquaculture, and marine mammal legislation enacted by the 108th Congress.

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This report provides Head Start issues on the 108th congress, a federal program that has provided comprehensive early childhood development services to low-income children since 1965.

This report contains a guide describing selected printed and electronic reference sources that provide directory information about current Members of Congress and congressional committees. An appendix indexes each category and lists which sources include that type of directory information.

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Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.

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Weekly newspaper from Garber, Oklahoma that includes local, state, and national news along with advertising.

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Weekly newspaper from Port Aransas, Texas on Mustang Island that includes local, state and national news along with advertising.

Falling agricultural exports and declining commodity prices led farm groups and agribusiness firms to urge the 106th Congress to pass legislation exempting foods and agricultural commodities from U.S. economic sanctions against certain countries. In completing action on the FY2001 agriculture appropriations bill, Congress codified the lifting of unilateral sanctions on commercial sales of food, agricultural commodities, medicine, and medical products to Iran, Libya, North Korea, and Sudan, and extended this policy to apply to Cuba (Title IX of H.R. 5426, as enacted by P.L. 106-387; Trade Sanctions Reform and Export Enhancement Act of 2000). Related provisions place financing and licensing conditions on sales to these countries. Those that apply to Cuba, though, are permanent and more restrictive than for the other countries. Other provisions give Congress the authority in the future to veto a President's proposal to impose a sanction on the sale of agricultural or medical products.

This report discusses the "oil-for-food" program (OFFP) as the centerpiece of a long-standing U.N. Security Council effort to alleviate human suffering in Iraq while maintaining key elements of the 1991 Gulf war-related sanctions regime. The program, in operation from December 1996 until March 2003, is detailed.

This report provides brief facts and statistics about Social Security that are frequently requested by Members of Congress and their staffs. It includes information about Social Security taxes and benefits, the program's impact on recipients' incomes, federal tax receipts, federal spending and the economy, administrative information, and selected facts about Medicare.

The primary focus of this issue brief is legislative action in the 108th Congress with respect to abortion. However, discussion of those legislative proposals necessarily involves a brief discussion of the leading U.S. Supreme Court decisions concerning a woman’s right to choose whether to terminate her pregnancy. For a more detailed discussion of the relevant case law, see CRS Report 95-724, Abortion Law Development: A Brief Overview.

Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.