A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Homeland Security (DHS) assumed responsibility for the immigration enforcement and services programs of the former Immigration and Naturalization Service (INS) in 2003. The three DHS bureaus with primary responsibility for immigration functions are U.S. Customs and Border Protection (CBP), U.S. Citizenship and Immigration Services (CIS), and U.S. Immigration and Customs Enforcement (ICE). This transfer creates a great opportunity for DHS to address long-standing management and operational problems within INS. The Homeland Security Act requires GAO to review the transfer of immigration functions to DHS. In response, this report assesses the status of (1) communication and coordination of roles and responsibilities, (2) integration of immigration and customs investigators in ICE, and (3) administrative services and systems in CBP, CIS, and ICE."

A letter report issued by the Government Accountability Office with an abstract that begins "The safety of the flying public and the reliability of the nation's aircraft depend, in part, on the Federal Aviation Administration's (FAA) regulation and certification of the aviation industry. FAA delegates the vast majority of its safety certification activities to about 13,600 private persons and organizations, known as "designees," which are currently grouped into 18 different programs. Among other tasks, designees perform physical examinations to ensure that pilots are medically fit to fly and examine the airworthiness of aircraft. GAO reviewed (1) the strengths of FAA's designee programs, (2) the weaknesses of those programs and factors contributing to those weaknesses, and (3) potential improvements to the programs."

A letter report issued by the Government Accountability Office with an abstract that begins "China's 2001 accession to the World Trade Organization (WTO) required China to reform its economy and trade practices. As part of ongoing work, GAO reviewed how the U.S. Trade Representative (USTR) and the Departments of Commerce, Agriculture, and State pursued China's WTO compliance in 2003. Specifically, this report (1) discusses the scope and disposition of China's compliance problems, (2) reviews the U.S. government's bilateral and multilateral approaches for resolving these problems, (3) assesses the key agencies' strategies and plans for ensuring compliance, and (4) assesses how the agencies have adapted their staff resources to conduct compliance activities."

A letter report issued by the Government Accountability Office with an abstract that begins "The Chairmen of the Senate and House Committees on the Judiciary asked GAO to determine (1) the extent of the U.S. Commission on Civil Rights' compliance with the requirements of the Government Performance and Results Act (GPRA) of 1993, (2) what federal oversight is provided to the Commission, and (3) the status of the implementation of recommendations from GAO's past reviews of the Commission."

A letter report issued by the Government Accountability Office with an abstract that begins "Concerns were raised about the current system Medicare uses to determine annual changes to physician fees--the sustainable growth rate (SGR) system--when fees were reduced by 5.4 percent in 2002. Subsequent administrative and legislative actions modified or overrode the SGR system, resulting in fee increases for 2003, 2004, and 2005. However, projected fee reductions for 2006-2012 have raised new concerns about the SGR system. Policymakers are considering whether to eliminate spending targets or modify them. The Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (MMA) required that GAO study SGR and potential alternatives to the system. This report examines (1) how the SGR system is designed to control spending for physician services, (2) what concerns have been raised about the SGR system and its components, (3) what affects the stability and predictability of physician fee updates under the SGR system, and (4) what alternatives to the current SGR system exist. GAO reviewed relevant laws and regulations and interviewed officials and organizations representing physicians. On the basis of this information, GAO identified potential alternatives to the SGR system and requested illustrative simulations of fee updates and spending …

A letter report issued by the Government Accountability Office with an abstract that begins "The ability to produce the data needed to efficiently and effectively manage the day-to-day operations of the federal government and provide accountability to taxpayers has been a long-standing challenge to most federal agencies. To help address this challenge, the Federal Financial Management Improvement Act of 1996 (FFMIA) requires the 23 Chief Financial Officers Act agencies to implement and maintain financial management systems that comply substantially with (1) federal financial management systems requirements, (2) applicable federal accounting standards, and (3) the U.S. Government Standard General Ledger (SGL) at the transaction level. FFMIA also requires GAO to report annually on the implementation of the act."

A letter report issued by the Government Accountability Office with an abstract that begins "In 2003, the Department of Education's Office of Federal Student Aid (FSA) managed about $60 billion in new financial aid. In 1998, the Congress designated FSA as a performance-based organization. In so doing, it specified purposes for the agency, such as to reduce program costs and increase accountability of its officials, and provided flexibilities such as allowing FSA to pay bonuses. Also FSA is required to annually prepare a performance plan and report and have performance agreements for its senior officials. Past reviews revealed serious problems and concerns about FSA's management. In January 2003, GAO reported that FSA had made progress but had not sufficiently addressed some key management issues. Also, GAO noted that FSA, like other agencies needed to address human capital issues. GAO assessed FSA's progress in (1) addressing key management issues and meeting requirements for planning and reporting, and (2) developing a human capital strategy and increasing the accountability of its officials."

A letter report issued by the Government Accountability Office with an abstract that begins "The goal of most American workers--a well-paying job--will be increasingly linked to adequate training in the coming years. Such training will be key to competing for the 21 million new jobs the Department of Labor projects will be created in the 2002 to 2012 period. People already in, or seeking to enter, the workforce often turn to the nation's more than 1,100 public community colleges and technical schools to obtain needed skills. Nearly 6 million students were enrolled in for-credit courses in the fall term 2000 and millions more participated in noncredit courses at these schools. GAO was asked to examine: (1) the extent to which community colleges and technical schools are involved in remedial education and workforce training efforts as well as academic preparation activities; (2) how state and federal funding support these academic and training efforts; and (3) what is known about schools' efforts to measure outcomes, including the rates at which students graduate, transfer to 4-year institutions, pass occupational licensing exams, and gain employment. The scope of our review included a Web-based survey of 1,070 public community colleges and technical schools, 758 (71 …

A letter report issued by the Government Accountability Office with an abstract that begins "The former Immigration and Naturalization Service (INS) had five interior (non-border-related) immigration enforcement objectives to address federal immigration law violations: identify and remove criminal aliens from the United States; deter and dismantle alien trafficking and smuggling; respond to community reports and complaints about illegal immigration; minimize immigration benefit fraud; and block employers' access to undocumented workers. After the terrorist attacks of September 11, 2001, the INS and other federal agencies began merging their law enforcement functions into the U.S. Bureau of Immigration and Customs Enforcement (ICE) within the Department of Homeland Security. Congress sought information on how the newly formed ICE was addressing legacy INS's immigration enforcement objectives. GAO addressed the following questions: (1) What is the status of ICE's efforts to incorporate legacy INS's interior immigration enforcement objectives? (2) How is ICE developing budget needs, workforce plans, and performance measures for immigration-related objectives?"

A letter report issued by the Government Accountability Office with an abstract that begins "The Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (MMA) revised the payment formula for most of the outpatient drugs, including inhalation therapy drugs, covered under Medicare part B. Under the revised formula, effective 2005, Medicare's payment is intended to be closer to acquisition costs. The Centers for Medicare & Medicaid Services (CMS), the agency that administers Medicare, also pays suppliers of inhalation therapy drugs a $5 per patient per month dispensing fee. Suppliers have raised concerns that once drug payments are closer to acquisition costs, they will no longer be able to use overpayments on drugs to subsidize dispensing costs, which they state are higher than $5. As directed by MMA, GAO (1) examined suppliers' acquisition costs of inhalation therapy drugs and (2) identified costs to suppliers of dispensing inhalation therapy drugs to Medicare beneficiaries."

A letter report issued by the Government Accountability Office with an abstract that begins "The Medicare appeals process has been the subject of widespread concern in recent years because of the time it takes to resolve appeals of denied claims. Two federal agencies play a role in deciding appeals--the Department of Health and Human Services (HHS) and the Social Security Administration (SSA). Currently, neither agency manages and oversees the entire multilevel process. In the Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (MMA), Congress mandated that SSA transfer its responsibility for adjudicating Medicare appeals to HHS between July 1, 2005, and October 1, 2005. In addition, it directed the two agencies to develop a transfer plan addressing 13 specific elements related to the transfer. GAO's objective was to determine whether the plan is sufficient to ensure a smooth and timely transition."

A letter report issued by the Government Accountability Office with an abstract that begins "The Congress asked GAO to review operational and programmatic aspects of the Census Bureau's ACS that will affect the reliability of small geographic area data. The ACS will be a mail survey of about 3 million households annually, whose results will be cumulated over 5 years to produce estimates that will replace information previously provided by the Decennial Census long form. In addition, annual data will be published for geographic areas with 65,000+ populations and as 3-year averages for areas with populations of 20,000 to 65,000. Annual data will be published beginning in 2006 with data for 2005. The 5-year averages for 2008-12 will provide data for small geographic areas."

A letter report issued by the Government Accountability Office with an abstract that begins "The Medicare hospice benefit provides care to patients with a terminal illness. For each patient, hospices are paid a per diem rate corresponding to one of four payment categories, which are based on service intensity and location of care. Since implementation in 1983, the payment methodology and rates have not been evaluated. The Medicare, Medicaid, and SCHIP Balanced Budget Refinement Act of 1999 directed GAO to study the feasibility and advisability of updating Medicare's payment rates for hospice care. In this report, GAO (1) compares freestanding hospices' costs to Medicare payment rates and (2) evaluates the appropriateness of the per diem payment methodology. Because of Medicare data limitations, it was not possible to compare actual payments to costs or examine the services provided to each patient."

A chapter report issued by the Government Accountability Office with an abstract that begins "In light of the passage of the 1999 Gramm-Leach-Bliley Act and increased competition within the financial services industry at home and abroad, GAO was asked to report on the current state of the U.S. financial services regulatory structure. This report describes the changes to the financial services industry, focusing on banking, securities, futures, and insurance; the structure of the U.S. and other regulatory systems; changes in regulatory and supervisory approaches; efforts to foster communication and cooperation among U.S. and other regulators; and the strengths and weaknesses of the current regulatory structure."

A letter report issued by the Government Accountability Office with an abstract that begins "Two large food recalls completed in 2003 were associated with 8 deaths and nearly 100 serious illnesses in at least 16 states. Manufacturers voluntarily recall potentially unsafe food by notifying their customers to return or destroy it. The U.S. Department of Agriculture (USDA), for meat, poultry, and egg products, and the Food and Drug Administration (FDA), for other food, have programs to monitor voluntary food recalls, verify that companies contact their customers, and maintain recall data. GAO (1) examined the recall programs and procedures USDA and FDA use to protect consumers from unsafe foods and (2) compared their food recall authority with the authority of agencies to recall other consumer products."

The performance characteristics and material properties such as stress, microstructure, and composition of nickel coatings and electroformed components can be controlled over a wide range by the addition of small amounts of surface-active compounds to the electroplating bath. Saccharin is one compound that is widely utilized for its ability to reduce tensile stress and refine grain size in electrodeposited nickel. While the effects of saccharin on nickel electrodeposition have been studied by many authors in the past, there is still uncertainty over saccharin's mechanisms of incorporation, stress reduction, and grain refinement. In-situ scanning probe microscopy (SPM) is a tool that can be used to directly image the nucleation and growth of thin nickel films at nanometer length scales to help elucidate saccharin's role in the development and evolution of grain structure. In this study, in-situ atomic force microscopy (AFM) and scanning tunneling microscopy (STM) techniques are used to investigate the effects of saccharin on the morphological evolution of thin nickel films. By observing mono-atomic height nickel island growth with and without saccharin present we conclude that saccharin has little effect on the nickel surface mobility during deposition at low overpotentials where the growth occurs in a layer-by-layer mode. Saccharin was …

By means of coupled-cluster theory, molecular properties can be computed with an accuracy often exceeding that of experiment. The high-degree polynomial scaling of the coupled-cluster method, however, remains a major obstacle in the accurate theoretical treatment of mainstream chemical problems, despite tremendous progress in computer architectures. Although it has long been recognized that this super-linear scaling is non-physical, the development of efficient reduced-scaling algorithms for massively parallel computers has not been realized. We here present a locally correlated, reduced-scaling, massively parallel coupled-cluster algorithm. A sparse data representation for handling distributed, sparse multidimensional arrays has been implemented along with a set of generalized contraction routines capable of handling such arrays. The parallel implementation entails a coarse-grained parallelization, reducing interprocessor communication and distributing the largest data arrays but replicating as many arrays as possible without introducing memory bottlenecks. The performance of the algorithm is illustrated by several series of runs for glycine chains using a Linux cluster with an InfiniBand interconnect.

Understanding the dynamics of the membrane protein rhodopsin will have broad implications for other membrane proteins and cellular signaling processes. Rhodopsin (Rho) is a light activated G-protein coupled receptor (GPCR). When activated by ligands, GPCRs bind and activate G-proteins residing within the cell and begin a signaling cascade that results in the cell's response to external stimuli. More than 50% of all current drugs are targeted toward G-proteins. Rho is the prototypical member of the class A GPCR superfamily. Understanding the activation of Rho and its interaction with its Gprotein can therefore lead to a wider understanding of the mechanisms of GPCR activation and G-protein activation. Understanding the dark to light transition of Rho is fully analogous to the general ligand binding and activation problem for GPCRs. This transition is dependent on the lipid environment. The effect of lipids on membrane protein activity in general has had little attention, but evidence is beginning to show a significant role for lipids in membrane protein activity. Using the LAMMPS program and simulation methods benchmarked under the IBIG program, we perform a variety of allatom molecular dynamics simulations of membrane proteins.

Drainage of water from the region between an advancing probe tip and a flat sample is reconsidered under the assumption that the tip and sample surfaces are both coated by a thin water 'interphase' (of width {approx}a few nm) whose viscosity is much higher than the bulk liquid's. A formula derived by solving the Navier-Stokes equations allows one to extract an interphase viscosity of {approx}59 KPa-sec (or {approx}6.6x10{sup 7} times the viscosity of bulk water at 25C) from Interfacial Force Microscope measurements with both tip and sample functionalized hydrophilic by OH-terminated tri(ethylene glycol) undecylthiol, self-assembled monolayers.

With the build-out of large transport networks utilizing optical technologies, more and more capacity is being made available. Innovations in Dense Wave Division Multiplexing (DWDM) and the elimination of optical-electrical-optical conversions have brought on advances in communication speeds as we move into 10 Gigabit Ethernet and above. Of course, there is a need to encrypt data on these optical links as the data traverses public and private network backbones. Unfortunately, as the communications infrastructure becomes increasingly optical, advances in encryption (done electronically) have failed to keep up. This project examines the use of optical logic for implementing encryption in the photonic domain to achieve the requisite encryption rates. This paper documents the innovations and advances of work first detailed in 'Photonic Encryption using All Optical Logic,' [1]. A discussion of underlying concepts can be found in SAND2003-4474. In order to realize photonic encryption designs, technology developed for electrical logic circuits must be translated to the photonic regime. This paper examines S-SEED devices and how discrete logic elements can be interconnected and cascaded to form an optical circuit. Because there is no known software that can model these devices at a circuit level, the functionality of S-SEED devices in an optical …

The irradiation of thin insulating films by high-energy ions (374 MeV Au{sup +25} or 241 MeV I{sup +19}) was used to attempt to form nanometer-size pores through the films spontaneously. Such ions deposit a large amount of energy into the target materials ({approx}20 keV/nm), which significantly disrupts their atomic lattice and sputters material from the surfaces, and might produce nanopores for appropriate ion-material combinations. Transmission electron microscopy was used to examine the resulting ion tracks. Tracks were found in the crystalline oxides quartz, sapphire, and mica. Sapphire and mica showed ion tracks that are likely amorphous and exhibit pits 5 nm in diameter on the surface at the ion entrance and exit points. This suggests that nanopores might form in mica if the film thickness is less than {approx}10 nm. Tracks in quartz showed strain in the matrix around them. Tracks were not found in the amorphous thin films examined: 20 nm-SiN{sub x}, deposited SiOx, fused quartz (amorphous SiO{sub 2}), formvar and 3 nm-C. Other promising materials for nanopore formation were identified, including thin Au and SnO{sub 2} layers.

This report discusses a set of verification test cases for the frequency-domain, boundary-element, electromagnetics code Eiger based on the analytical solution of plane wave scattering from a sphere. Three cases will be considered: when the sphere is made of perfect electric conductor, when the sphere is made of lossless dielectric and when the sphere is made of lossy dielectric. We outline the procedures that must be followed in order to carefully compare the numerical solution to the analytical solution. We define an error criterion and demonstrate convergence behavior for both the analytical and numerical cases. These problems test the code's ability to calculate the surface current density and secondary quantities, such as near fields and far fields.

The Nez Perce Tribe has a desire and a goal to reintroduce and restore coho salmon to the Clearwater River Subbasin at levels of abundance and productivity sufficient to support sustainable runs and annual harvest. Consistent with the Clearwater Subbasin Plan (EcoVista 2003), the Nez Perce Tribe envisions developing an annual escapement of 14,000 coho salmon to the Clearwater River Subbasin. In 1994, the Nez Perce Tribe began coho reintroduction by securing eggs through U.S. v. Oregon; by 1998 this agreement provided an annual transfer of 550,000 coho salmon smolts from lower Columbia River hatchery facilities for release in the Clearwater River Subbasin. In 1998, the Northwest Power and Conservation Council authorized the Bonneville Power Administration to fund the development of a Master Plan to guide this reintroduction effort. This Master Plan describes the results of experimental releases of coho salmon in the Clearwater River Subbasin, which have been ongoing since 1995. These data are combined with results of recent coho reintroduction efforts by the Yakama Nation, general coho life history information, and historical information regarding the distribution and life history of Snake River coho salmon. This information is used to assess a number of alternative strategies aimed at restoring …

This report describes the purpose and results of the two-year, Sandia-sponsored Laboratory Directed Research and Development (LDRD) project entitled Understanding Communication in Counterterrorism Crisis Management The purpose of this project was to facilitate the capture of key communications among team members in simulated training exercises, and to learn how to improve communication in that domain. The first section of this document details the scenario development aspects of the simulation. The second section covers the new communication technologies that were developed and incorporated into the Weapons of Mass Destruction Decision Analysis Center (WMD-DAC) suite of decision support tools. The third section provides an overview of the features of the simulation and highlights its communication aspects. The fourth section describes the Team Communication Study processes and methodologies. The fifth section discusses future directions and areas in which to apply the new technologies and study results obtained as a result of this LDRD.