36 CFR 1280.71 - What are the general rules for using NARA property in the Washington, DC, area?

Code of Federal Regulations, 2011 CFR

2011-07-01

... 36 Parks, Forests, and Public Property 3 2011-07-01 2011-07-01 false What are the general rules for using NARA property in the Washington, DC, area? 1280.71 Section 1280.71 Parks, Forests, and..., B, and C of this part, you must adhere to the following rules when using NARA public spaces: (a) All...

5 CFR 591.216 - How does OPM combine survey data for the DC area and for COLA areas with multiple survey areas?

Code of Federal Regulations, 2011 CFR

2011-01-01

... DC area and for COLA areas with multiple survey areas? 591.216 Section 591.216 Administrative... combine survey data for the DC area and for COLA areas with multiple survey areas? (a) Washington, DC... equal weights to compute an overall average by item for the DC area. (b) COLA areas with multiple survey...

5 CFR 591.216 - How does OPM combine survey data for the DC area and for COLA areas with multiple survey areas?

Code of Federal Regulations, 2014 CFR

2014-01-01

... DC area and for COLA areas with multiple survey areas? 591.216 Section 591.216 Administrative... combine survey data for the DC area and for COLA areas with multiple survey areas? (a) Washington, DC... equal weights to compute an overall average by item for the DC area. (b) COLA areas with multiple survey...

5 CFR 591.216 - How does OPM combine survey data for the DC area and for COLA areas with multiple survey areas?

Code of Federal Regulations, 2010 CFR

2010-01-01

... DC area and for COLA areas with multiple survey areas? 591.216 Section 591.216 Administrative... combine survey data for the DC area and for COLA areas with multiple survey areas? (a) Washington, DC... equal weights to compute an overall average by item for the DC area. (b) COLA areas with multiple survey...

5 CFR 591.216 - How does OPM combine survey data for the DC area and for COLA areas with multiple survey areas?

Code of Federal Regulations, 2013 CFR

2013-01-01

... DC area and for COLA areas with multiple survey areas? 591.216 Section 591.216 Administrative... combine survey data for the DC area and for COLA areas with multiple survey areas? (a) Washington, DC... equal weights to compute an overall average by item for the DC area. (b) COLA areas with multiple survey...

5 CFR 591.216 - How does OPM combine survey data for the DC area and for COLA areas with multiple survey areas?

Code of Federal Regulations, 2012 CFR

2012-01-01

... DC area and for COLA areas with multiple survey areas? 591.216 Section 591.216 Administrative... combine survey data for the DC area and for COLA areas with multiple survey areas? (a) Washington, DC... equal weights to compute an overall average by item for the DC area. (b) COLA areas with multiple survey...

76 FR 52566 - Drawbridge Operation Regulations; Anacostia River, Washington, DC

Federal Register 2010, 2011, 2012, 2013, 2014

2011-08-23

... Lift Bridge across the Anacostia River, mile 3.4, at Washington, DC. This deviation will test a change... regulations for the CSX Railroad Vertical Lift Bridge, across the Anacostia River, mile 3.4, at Washington, DC...

AN ANALYSIS OF AIR POLLUTION AND ITS HEALTH EFFECTS: WASHINGTON, DC. METROPOLITAN AREA

EPA Science Inventory

The study represents an extension of research begun under a contract (No. 68-01-3144) funded jointly by the U.S. Environmental Protection Agency and the U.S. Department of Transportation entitled, 'Air Pollution and Health in Washington, D.C.: An Analysis of Some Acute Health Eff...

The Proving Grounds: School "Rheeform" in Washington, D.C.

ERIC Educational Resources Information Center

Dingerson, Leigh

2010-01-01

Washington, D.C., is leading the transformation of urban public education across the country--at least according to "Time" magazine, which featured D.C. Schools Chancellor Michelle Rhee on its cover, wearing black and holding a broom. But there is nothing remarkably visionary going on in Washington. The model of school reform that is…

Needs Assessment of the Healthcare Sector in the Washington, D.C., Metropolitan Area. Research Report. Business Needs Assessment Study.

ERIC Educational Resources Information Center

Northern Virginia Community Coll., Annandale. Office of Institutional Research.

According to the U.S. Bureau of Labor Statistics, the growing population of elderly citizens will result in an increased demand for healthcare services that will rise for a full 50 years. This study assesses the need for healthcare sector workers in the Washington, D.C. metropolitan area. Information on the skills, education, and experience that…

Fixed drug eruption associated with sulfonamides sold in Latino grocery stores - Greater Washington, DC, area, 2012-2013.

PubMed

2013-11-22

In March 2012, a Salvadoran-American boy aged 7 years living in Maryland developed three slightly painful, well-demarcated, flat, gray-brown patches on his torso. A dermatologist in Washington, DC, suspected a fixed drug eruption (an erythema multiforme-like adverse drug reaction that occurs in the same location each time the person uses a particular medication). The child had recently taken a cough and cold remedy, Baczol Antigripal, which was made in El Salvador and purchased in a Maryland suburb of Washington, DC, without a prescription. The Baczol Antigripal ingredients included the sulfonamide-containing antibiotic trimethoprim-sulfamethoxazole (TMP/SMX), which is a common cause of fixed drug eruption. In June 2013, another Salvadoran-American child, a girl aged 14 years living in northern Virginia, was evaluated for a similar fixed drug eruption likely caused by a Baczol product purchased near her home. In August 2013, staff members from the Children's National Medical Center investigated the availability of Baczol products in grocery stores in Salvadoran neighborhoods of Washington, DC, and neighboring suburbs. TMP/SMX-containing products were found in seven of 19 stores.

Goldman visits Washington, D.C.

NASA Image and Video Library

2009-03-24

Stennis Space Center Director Gene Goldman (right) visited Washington, D.C,. last month, where he called on Louisiana and Mississippi leaders to update them on work at the rocket engine testing facility. Rep. Gene Taylor, D-Miss., was among those visited by Goldman on March 24.

An assessment of solar hot water heating in the Washington, D.C. area - Implications for local utilities

NASA Astrophysics Data System (ADS)

Stuart, M. W.

1980-04-01

A survey of residential solar hot water heating in the Washington, D.C. area is presented with estimates of the total solar energy contribution per year. These estimates are examined in relation to a local utility's peak-load curves to determine the impact of a substantial increase in solar domestic hot water use over the next 20 yr in the area of utility management. The results indicate that a 10% market penetration of solar water heaters would have no detrimental effect on the utility's peak-load profile and could save several million dollars in new plant construction costs.

Tidal river sediments in the Washington, D.C. area. 11. Distribution and sources of organic containmants

DOE Office of Scientific and Technical Information (OSTI.GOV)

Wade, T.L.; Velinsky, D.J.; Reinharz, E.

1994-06-01

Concentrations of aliphatic, aromatic, and chlorinated hydrocarbons were determined from 33 surface-sediment samples taken from the Tidal Basin, Washington Ship Channel, and the Anacostia and Potomac rivers in Washington, D.C. In conjunction with these samples, selected storm sewers and outfalls also were sampled to help elucidate general sources of contamination to the area. All of the sediments contained detectable concentrations of aliphatic and aromatic hydrocarbons, DDT (total dichlorodiphenytrichloroethande), DDE (dichlorodiphenyldichloroethene), DDD (dichlorodiphenyldichloroethane), PCBx (total polychlorinated biphenyls) and total chlordanes (oxy-, {alpha}-, and {gamma}-chlordane and cis + trans-nonachlor). Sediment concentrations of most contaminants were highest in the Anacostia River just downstreammore » of the Washington Navy Yard, except for total chlordane, which appeared to have upstream sources in addition to storm and combined sewer runoff. This area has the highest number of storm and combined sewer outfalls in the river. Potomac River stations had lower concentrations than other stations. Polycyclic aromatic hydrocarbons, saturated hydrocarbons, and the unresolved complex mixture (UCM) distributions reflect mixtures of combustion products and direct discharges of petroleum products. Sources of PCBs appear to be related to specific outfalls, while hydrocarbon inputs, especially PAHs, are diffuse, and may be related to street runoff. This study indicates that in large urban areas, nonpoint sources deliver substantial amounts of contaminants to ecosystems through storm and combined sewer systems, and control of these inputs must be addressed. 33 refs., 6 figs., 3 tabs.« less

Evaluation of the Washington, D.C. Parking Enforcement Program

DOT National Transportation Integrated Search

1982-09-01

This report documents the evaluation of the Washington, DC, parking enforcement program. This comprehensive program is operated by the District of Columbia, Department of Transportation (DC DOT). The program has resulted in the successful integration...

Labor Market Experiences of Central American Migrants in Washington, D.C.

ERIC Educational Resources Information Center

Repak, Terry A.

1993-01-01

Explores labor market experiences of Central American men and women in Washington, DC; analyzes variables determining wage levels; and assesses employment mobility. Results from 50 individuals and 100 households illustrate striking advantages in income and mobility of men. Most migrant women in Washington, DC, are segregated into low-paid service…

Evaluation of restorative maintenance on 1975 and 1976 light-duty vehicles in Washington, DC. Final report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Washington, L.H.

1977-03-01

A comprehensive study was conducted of automobile exhaust emissions and the effects of restorative maintenance and selective engine parameter maladjustment on these emissions. This was a study of 100, 1975 and 1976 model year consumer owned vehicles from the Washington, D.C. area and was an addition to a total surveillance program which had been conducted in seven major cities (Denver, Washington, D.C., Los Angeles, Houston, Phoenix, Chicago and St. Louis) in order to determine the impact of automobile emissions on air quality. This additional study was not made in all seven of the cities involved in the original study. Specifically,more » vehicles from the Washington, D.C. area were tested for fuel economy and the content of total hydrocarbons, carbon monoxide, carbon dioxide and nitrogen oxides in their exhaust emissions using the 1975 Federal Test Procedure, the Highway Fuel Economy Test, the Federal Short Cycle, the New York-New Jersey Acid Test, the Clayton Key Mode Test, the Two Speed Idle Test, and the Federal Three Mode Test. (Portions of this document are not fully legible)« less

ACHP | News | ACHP Business Meeting Feb. 17 in Washington, D.C.

Science.gov Websites

Search skip specific nav links Home arrow News arrow ACHP Business Meeting Feb. 17 in Washington, D.C . ACHP Business Meeting Feb. 17 in Washington, D.C. The ACHP will host its winter business meeting three new members and present the chairman's award as well as address other business regarding renewable

Epidemiologic maps of Washington DC, 1878-1909.

PubMed Central

Vecchioli, D

1996-01-01

IN ORDER TO demonstrate the dire effects that contagious epidemic diseases were having on the population of Washington DC, Public Health Officers of the District of Columbia used epidemiological maps in their annual reports to city commissioners from 1878 until 1909. These maps charted information graphically that was included as statistical tables elsewhere in the reports. Their evolution occurred during a period when the Health Officers themselves were coming to grips with the causes of diseases that included diphtheria, scarlet fever, typhoid and malarial fevers, smallpox, consumption (tuberculosis), and diarrheal diseases. The maps may have encouraged laws that were passed during this period which required Washington DC physicians to report cases and deaths from these diseases. Images p315-a p315-b p315-c Figure 2. PMID:8711096

Earth Day Park in Washington, D.C. to be Solar Powered

Science.gov Websites

Earth Day Park in Washington, D.C. to be Solar Powered For more information contact: Mike Marsh will illuminate Earth Day Park in Washington, D.C. just in time for the 26th annual celebration of Earth Day April 22, thanks to the U.S. Department of Energy and its National Renewable Energy Laboratory

RadNet Air Data From Washington, DC

EPA Pesticide Factsheets

This page presents radiation air monitoring and air filter analysis data for Washington, DC from EPA's RadNet system. RadNet is a nationwide network of monitoring stations that measure radiation in air, drinking water and precipitation.

Photo Gallery for Anacostia Watershed (Washington, DC/Maryland)

EPA Pesticide Factsheets

Anacostia Watershed (Washington, DC/Maryland) of the Urban Waters Federal Partnership (UWFP) reconnects urban communities with their waterways by improving coordination among federal agencies and collaborating

33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., Potomac River, Washington, DC. 165.508 Section 165.508 Navigation and Navigable Waters COAST GUARD... § 165.508 Security Zone; Georgetown Channel, Potomac River, Washington, DC. (a) Definitions. (1) The... zone: All waters of the Georgetown Channel of the Potomac River, from the surface to the bottom, 75...

33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

Code of Federal Regulations, 2014 CFR

2014-07-01

..., Potomac River, Washington, DC. 165.508 Section 165.508 Navigation and Navigable Waters COAST GUARD... § 165.508 Security Zone; Georgetown Channel, Potomac River, Washington, DC. (a) Definitions. (1) The... zone: All waters of the Georgetown Channel of the Potomac River, from the surface to the bottom, 75...

33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

Code of Federal Regulations, 2012 CFR

2012-07-01

..., Potomac River, Washington, DC. 165.508 Section 165.508 Navigation and Navigable Waters COAST GUARD... § 165.508 Security Zone; Georgetown Channel, Potomac River, Washington, DC. (a) Definitions. (1) The... zone: All waters of the Georgetown Channel of the Potomac River, from the surface to the bottom, 75...

33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

Code of Federal Regulations, 2013 CFR

2013-07-01

..., Potomac River, Washington, DC. 165.508 Section 165.508 Navigation and Navigable Waters COAST GUARD... § 165.508 Security Zone; Georgetown Channel, Potomac River, Washington, DC. (a) Definitions. (1) The... zone: All waters of the Georgetown Channel of the Potomac River, from the surface to the bottom, 75...

33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

Code of Federal Regulations, 2011 CFR

2011-07-01

..., Potomac River, Washington, DC. 165.508 Section 165.508 Navigation and Navigable Waters COAST GUARD... § 165.508 Security Zone; Georgetown Channel, Potomac River, Washington, DC. (a) Definitions. (1) The... zone: All waters of the Georgetown Channel of the Potomac River, from the surface to the bottom, 75...

Links Related to Anacostia Watershed (Washington, DC/Maryland)

EPA Pesticide Factsheets

Anacostia Watershed (Washington, DC/Maryland) of the Urban Waters Federal Partnership (UWFP) reconnects urban communities with their waterways by improving coordination among federal agencies and collaborating with community-led efforts.

Meetings & Events about Anacostia Watershed (Washington, DC/Maryland)

EPA Pesticide Factsheets

Anacostia Watershed (Washington, DC/Maryland) of the Urban Waters Federal Partnership (UWFP) reconnects urban communities with their waterways by improving coordination among federal agencies and collaborating with community-led efforts.

5 CFR 591.215 - Where does OPM collect prices in the COLA and DC areas?

Code of Federal Regulations, 2011 CFR

2011-01-01

.... Virgin Islands also has two survey areas: the Island of St. Croix and the Islands of St. Thomas and St.../Caguas area. 2 U.S. Virgin Islands St. Croix. St. Thomas/St. John area. 3 Washington, DC-DC District of...

A Topographic Field Trip of Washington, D.C. - A Cartographic Multimedia Application

USGS Publications Warehouse

,

1999-01-01

The U.S. Geological Survey (USGS) has produced ?A Topographic Field Trip of Washington, D.C.,' a multimedia CD-ROM that uses topographic maps to tour Washington, D.C. Although designed for the middle school grade level, it can also be used to teach introductory topographic map reading skills to any level. Two versions of ?A Topographic Field Trip of Washington, D.C.,? are available. The first version, for Macintosh? systems only, was developed and produced as a prototype with educational resources funds and is available free of charge. The second version, for dual platforms, Macintosh?, and Windows? systems, is a sales item. The dual platform version contains improvements in content and navigational capabilities.

The hydrogeology of urbanization: The lost springs of Washington, D.C., late Tertiary and Quaternary sediments of D.C., and the Baltimore Long Term Ecological Research site (LTER): Chapter

USGS Publications Warehouse

Bhaskar, Aditi; Pavich, Milan J.; Sharp, John M.

2015-01-01

Urbanization is a major process now shaping the environment. This field trip looks at the hydrogeology of the general Washington, D.C., area and focuses on the city's lost springs. Until 150 years ago, springs and shallow dug wells were the main source of drinking water for residents of Washington, D.C. Celebrating the nation's bicentennial, Garnett P. Williams of the U.S. Geological Survey examined changes in water supply and water courses since 1776. He examined old newspaper files to determine the location of the city's springs. This field trip visits sites of some of these springs (few of which are now flowing), discusses the hydrologic impacts of urbanization and the general geological setting, and finishes with the Baltimore Long Term Ecological Research site at Dead Run and its findings. The field trip visits some familiar locations in the Washington, D.C., area, and gives insights into their often hidden hydrologic past and present.

Accessible Bus Service in the Washington, D.C. Metropolitan Area.

DOT National Transportation Integrated Search

1983-01-01

The Washington Metropolitan Area Transit Authority (WMATA) began operation of lift-equipped fixed-route service on several of its Metrobus routes in July 1979. Using 151 Flxible buses equipped with Vapor front-door lift devices, WMATA made 8% of its ...

Space Radar Image of Washington D.C.

NASA Technical Reports Server (NTRS)

1994-01-01

The city of Washington, D.C., is shown is this space radar image. Images like these are useful tools for urban planners and managers, who use them to map and monitor land use patterns. Downtown Washington is the bright area between the Potomac (upper center to lower left) and Anacostia (middle right) rivers. The dark cross shape that is formed by the National Mall, Tidal Basin, the White House and Ellipse is seen in the center of the image. Arlington National Cemetery is the dark blue area on the Virginia (left) side of the Potomac River near the center of the image. The Pentagon is visible in bright white and red, south of the cemetery. Due to the alignment of the radar and the streets, the avenues that form the boundary between Washington and Maryland appear as bright red lines in the top, right and bottom parts of the image, parallel to the image borders. This image is centered at 38.85 degrees north latitude, 77.05 degrees west longitude. North is toward the upper right. The area shown is approximately 29 km by 26 km (18 miles by 16 miles). Colors are assigned to different frequencies and polarizations of the radar as follows: Red is the L-band horizontally transmitted, horizontally received; green is the L-band horizontally transmitted, vertically received; blue is the C-band horizontally transmitted, vertically received. The image was acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture (SIR-C/X-SAR) imaging radar when it flew aboard the space shuttle Endeavour on April 18, 1994. SIR-C/X-SAR, a joint mission of the German, Italian and United States space agencies, is part of NASA's Mission to Planet Earth program.

Drunk Driving. Surgeon General's Workshop. Proceedings (Washington, D.C., December 14-16, 1988).

ERIC Educational Resources Information Center

Janus Associates.

This volume presents solutions, recommendations, and strategies in eleven interrelated areas considered at the Surgeon General's Workshop on Drunk Driving held in Washington, D.C. in December of 1988. Lists of the members of the Workshop Planning Committee and members of the federal advisory group on follow-up activities for the workshop are…

75 FR 10446 - Security Zone; Potomac River, Washington Channel, Washington, DC

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-08

... during the U.S. Coast Guard Commandant's Change of Command ceremony from 6 a.m. through 5 p.m. on May 25... Purpose The Coast Guard will conduct a Change of Command ceremony at Fort McNair in Washington, DC. To... the U.S. Coast Guard Commandant's Change of Command ceremony. Due to the catastrophic impact a...

Radiological survey results at Building 22, Washington Navy Yard, Washington, D.C. (WNS001)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rodriguez, R.E.; Foley, R.D.; Uziel, M.S.

A radiological survey was conducted in a portion of Building 22 at the Washington Navy Yard, Washington, D.C., on December 13, 1995. The survey was performed because former employees thought the area surveyed had some previous association with radioactive material. Employees remembered seeing radiation signs in the area and indicated that personnel occupying this area wore dosimeters. Two rooms in the survey area were surrounded by 1-ft-thick poured concrete walls and similar 6-in.-thick ceilings, and situated on top of a 1-ft-thick concrete slab, a configuration commonly used for radiation shielding in industrial radiography facilities. The radiological survey showed no gamma,more » beta-gamma, or alpha measurements above typical background levels. Low background radiation levels within the building indicated that even if low-level contamination were present beneath the tile, or larger amounts of contamination beneath the concrete slab, it poses no radiological hazard to building inhabitants under the present conditions. Further investigation may be required before drilling or demolition of the concrete slab. No photon radiation fields from sealed gamma sources or x-ray sources were detectable at the time of the survey. Gamma spectrometry analysis revealed no gamma emitters above typical background concentrations in one sediment and one water sample collected from a pit in the open bay area.« less

Too-Comfortable Strangers: Cultural Association among the Sephardim of Washington, D.C.

ERIC Educational Resources Information Center

Fredman, Ruth Gruber

The power of the symbol "Sephardic" to foster community association is extremely problematical in the Washington, D.C., context. Washington's Sephardic population is heterogeneous with respect to generation, self-definition, and culture. Complicating the situation is the nature of Washington itself, which in turn is inextricably linked…

DC Rocks! Using Place-Based Learning to Introduce Washington DC's K-12 Students to the Geosciences

NASA Astrophysics Data System (ADS)

Mayberry, G. C.; Mattietti, G. K.

2017-12-01

The Washington DC area has interesting geology and a multitude of agencies that deal with the geosciences, yet K-12 public school students in DC, most of whom are minorities, have limited exposure to the geosciences. Geoscience agencies in the DC area have a unique opportunity to address this by introducing the geosciences to local students who otherwise may not have such an opportunity, by highlighting the geology in the students' "backyard," and by leveraging partnerships among DC-based geoscience-related agencies. The USGS and George Mason University are developing a project called DC Rocks, which will give DC's students an exciting introduction into the world of geoscience with place-based learning opportunities that will make geoscience relevant to their lives and their futures. Both the need in DC and the potential for lasting impact are great; the geosciences have the lowest racial diversity of all the science, technology, engineering, and math (STEM) fields, 89% of students in DC public schools are minorities, and there is no dedicated geoscience curriculum in DC. DC Rocks aims to give these students early exposure to the earth sciences, and encourage them to consider careers in the profession. DC Rocks will work with partner agencies to apply several methods that are recommended by researchers to increase the participation of minority students in the geosciences, including providing profoundly positive experiences that spark interest in the geosciences (Levine et al., 2007); increasing students' sense of belonging in the geosciences (Huntoon, et al, 2016); and place-based teaching practices that emphasize the study of local sites (Semken, 2005), such as DC's Rock Creek Park. DC Rocks will apply these methods by coordinating local geoscientists and resources to provide real-world examples of the geosciences' impact on students' lives. Through the DC Rocks website, educators will be able to request geoscience-related resources such as class presentations by

Early Restoration Public Meeting, Washington, DC | NOAA Gulf Spill

Science.gov Websites

benefit injured marshes, coastal dune and nearshore habitats, oysters, and human uses (on water recreation . Department of Commerce Herbert Hoover Building Auditorium 1401 Constitution Ave., NW Washington, D.C. 20230

The Nation's Capital and First Graders: Role Playing a Trip to Washington, D.C.

ERIC Educational Resources Information Center

Morris, Ronald V.

2003-01-01

Children in two first-grade classes and their teachers decided to take an imaginary trip to Washington D.C. For three weeks, the first graders spent their afternoons on the project, and their simulated flight was the culminating activity of a unit on Washington, D.C. In this article, the author discusses several details of the activity,…

The Technology and Society Internship Directory. A Comprehensive Guide to Washington, DC Internships, 1985-1986. First Edition.

ERIC Educational Resources Information Center

Sabonis-Chafee, Terry, Ed.

Information is presented on internships in the Washington, D.C., area that enable students to explore the effects of technology and science on society. Science and engineering student interns work in nonlaboratory environments, and nontechnical students may work in issue areas and newly emerging public policy challenges. The directory includes…

Washington, D.C. - Local Information | NREL

Science.gov Websites

International Airport (IAD), and Baltimore/Washington International Thurgood Marshall Airport (BWI). DCA is the additional information. Reagan National Airport - DCA Dulles International Airport - IAD Baltimore/Washington International Thurgood Marshall Airport - BWI Public Transportation The Washington Metropolitan Area Transit

DNA Barcoding analysis of seafood accuracy in Washington, D.C. restaurants

PubMed Central

Stern, David B.; Castro Nallar, Eduardo; Rathod, Jason

2017-01-01

In Washington D.C., recent legislation authorizes citizens to test if products are properly represented and, if they are not, to bring a lawsuit for the benefit of the general public. Recent studies revealing the widespread phenomenon of seafood substitution across the United States make it a fertile area for consumer protection testing. DNA barcoding provides an accurate and cost-effective way to perform these tests, especially when tissue alone is available making species identification based on morphology impossible. In this study, we sequenced the 5′ barcoding region of the Cytochrome Oxidase I gene for 12 samples of vertebrate and invertebrate food items across six restaurants in Washington, D.C. and used multiple analytical methods to make identifications. These samples included several ambiguous menu listings, sequences with little genetic variation among closely related species and one sequence with no available reference sequence. Despite these challenges, we were able to make identifications for all samples and found that 33% were potentially mislabeled. While we found a high degree of mislabeling, the errors involved closely related species and we did not identify egregious substitutions as have been found in other cities. This study highlights the efficacy of DNA barcoding and robust analyses in identifying seafood items for consumer protection. PMID:28462038

77 FR 14968 - Drawbridge Operation Regulation; Anacostia River, Washington, DC

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-14

... Railroad Vertical Lift Bridge across the Anacostia River, mile 3.4, at Washington, DC. The change will... operation regulation for the CSX Railroad Vertical Lift Bridge, across the Anacostia River, mile 3.4, at...

76 FR 52602 - Drawbridge Operation Regulation; Anacostia River, Washington, DC

Federal Register 2010, 2011, 2012, 2013, 2014

2011-08-23

... operation of the CSX Railroad Vertical Lift Bridge across the Anacostia River, mile 3.4 at Washington, DC... Railroad Company has requested a change in the operating regulation for the CSX Railroad Vertical Lift...

NPDES Permit for \\tWashington Metropolitan Area Transit Authority (WMATA) Mississippi Avenue Pumping Station

EPA Pesticide Factsheets

Under National Pollutant Discharge Elimination System permit number DC0000337, the Washington Metropolitan Area Transit Authority (WMATA) is authorized to dischargefrom a facility to receiving waters named Oxon Run.

Cigarette smoking among immigrant Salvadoreans in Washington, DC: behaviors, attitudes, and beliefs.

PubMed

Shankar, S; Gutierrez-Mohamed, M L; Alberg, A J

2000-01-01

There has been an influx of immigrants from El Salvador to the Washington, DC (DC) area, but little is known about the health behaviors of this population. This study was conducted to describe the prevalence of cigarette smoking among adult Salvadorean immigrants to the DC area. Bilingual interviewers administered a face-to-face interview to participants recruited from throughout the community. Complete data were available for 1,458 participants: 10.8% of those surveyed were current smokers and 11.7% were former smokers. Men were significantly more likely than women to have ever smoked either in the past (adjusted prevalence difference [PD = 21.0%] or currently (PD = 21.2%). The respondents tended to believe that smoking was a "habit" rather than an addition. Only 16% lived in households where smoking was permitted, and the majority supported smoke-free policies in public places, with men and current smokers being less permissive. The smoking behavior exclusively represented the smoking pattern that the Salvadoreans had adopted before immigration. The data suggest that smoking control strategies aimed at this population should seek to reduce the onset of smoking among men and continue to keep smoking among women rare.

Tree canopy change and neighborhood stability: A comparative analysis of Washington, D.C. and Baltimore, MD

Treesearch

Wen-Ching Chuang; Christopher G. Boone; Dexter H. Locke; J. Morgan Grove; Ali Whitmer; Geoffrey Buckley; Sainan Zhang

2017-01-01

Trees provide important health, ecosystem, and aesthetic services in urban areas, but they are unevenly distributed. Some neighborhoods have abundant tree canopy and others nearly none. We analyzed how neighborhood characteristics and changes in income over time related to the distribution of urban tree canopy in Washington, D.C. and Baltimore, MD. We used stepwise...

Test and treat DC: forecasting the impact of a comprehensive HIV strategy in Washington DC.

PubMed

Walensky, Rochelle P; Paltiel, A David; Losina, Elena; Morris, Bethany L; Scott, Callie A; Rhode, Erin R; Seage, George R; Freedberg, Kenneth A

2010-08-15

The United States and international agencies have signaled their commitment to containing the human immunodeficiency virus (HIV) epidemic via early case identification and linkage to antiretroviral therapy (ART) immediately at diagnosis. We forecast outcomes of this approach if implemented in Washington DC. Using a mathematical model of HIV case detection and treatment, we evaluated combinations of HIV screening and ART initiation strategies. We define current practice as no regular screening program and ART at CD4 counts < or = 350 cells/microL, and we define test and treat as annual screening and administration of ART at diagnosis. Outcomes include life expectancy of HIV-infected persons and changes in the population time with transmissible HIV RNA levels. Data, largely from Washington DC, include undiagnosed HIV prevalence of 0.6%, annual incidence of 0.13%, 31% rate of test offer, 60% rate of acceptance, and 50% linkage to care. Input parameters, including optimized ART efficacy, are varied in sensitivity analyses. Projected life expectancies, from an initial mean age of 41 years, are 23.9, 25.0, and 25.6 years for current practice, test and treat, and test and treat with optimized ART, respectively. Compared with current practice, test and treat leads to a 14.7% reduction in time spent with transmissible HIV RNA level in the next 5 years; test and treat with optimized ART results in a 27.3% reduction. An expanded HIV test and treat program in Washington DC will increase life expectancy of HIV-infected patients but will have a modest impact on HIV transmission over the next 5 years and is unlikely to halt the HIV epidemic.

38 CFR 3.851 - St. Elizabeths Hospital, Washington, DC.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 38 Pensions, Bonuses, and Veterans' Relief 1 2010-07-01 2010-07-01 false St. Elizabeths Hospital... Institutional Awards § 3.851 St. Elizabeths Hospital, Washington, DC. Benefits due or becoming due any person who is a patient at St. Elizabeths Hospital will be paid to a duly appointed fiduciary of such person...

76 FR 55157 - Final Public Meeting in Washington, DC for the Proposed Keystone XL Project

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-06

... along the pipeline route, a final meeting will be held in Washington, DC. Friday, October 7, 2011 Ronald Reagan Building and International Trade Center, Atrium Hall, 1300 Pennsylvania Avenue, Washington...

National Conference on New Juvenile Justice Standards, Washington, D.C., 1977

ERIC Educational Resources Information Center

Ter Haar, Alice C.

1978-01-01

Describes the standards on rights of minors, abuse and neglect, non-criminal behavior, and schools and education which were adopted at the National Conference on New Juvenile Justice Standards, Washington, D.C., 1977. (Author)

"Comets, Origins, and Life:” Promoting Interdisciplinary Science in Secondary and Middle Schools in the Washington, DC and Saint Louis, MO Metro Areas

NASA Astrophysics Data System (ADS)

Bonev, Boncho; Gibb, E. L.; Brewer, G.; Novak, R.; Mandell, A. M.; Seaton, P.; Price, J.; Long, T.; Bahar, S.; Edwards, S. S.

2010-10-01

Developing a full-year program to support secondary and middle school science education is a key part of the "broader impact” component of NSF Grant AST- 0807939 (PI/Co-PI Bonev/Gibb). This program is realized at two stages: (1) a professional development course for teachers is offered during the summer; (2) during the subsequent academic year we collaborate with educators in lessons planning or curriculum development as demanded in their particular schools. We successfully offered the course “ Comets, Origins, and Life: Interdisciplinary Science in the Secondary Classroom ” (45 contact hours; 3 credits) in the summers of 2009 and 2010 at the Catholic University of America. This class demonstrates how a complex hypothesis - for the delivery of water and prebiotic organic matter to early Earth - is being tested by integrating astronomy, physics, chemistry, biology, and Earth and planetary science. Collaborations with participants from the 2009 class include curriculum development within the Earth Science program in Prince Georges county, MD and strengthening science in Washington DC public schools. Our next step is to offer our class in the Saint Louis, MO area. The main challenge in our work with educators is not to present them with "interesting information", but to fit what we offer within the very particular curriculum expectations of their school districts. These curriculum expectations often vary from district to district and sometimes from year to year. We gratefully acknowledge the support by the NSF, allowing to fully integrate our research area into education. We also gratefully acknowledge our collaborations with the Goddard Center for Astrobiology and the Howard B. Owens Science Center (both in MD) in developing our class curriculum. Educators interested in this program can contact Boncho Bonev (bonev@cua.edu; for the Washington DC and Baltimore, MD areas) and Erika Gibb (gibbe@umsl.edu; for the Saint Louis, MO area).

The Role of Federal Troops in Quelling Civil Disturbance in Washington, DC, April 1968

DTIC Science & Technology

1993-01-01

15:17’ TAMU HISCTORY DEPT PAG’E . 002 THE USE OF FEDERAL TROOPS IN QUELLING CIVIL UNREST IN WASHINGTON , D.C., APRIL 1968 A Thesis By BARRYE LA TROYE ...BARRYE LA TROYE PRICE Submitted to Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF ARTS Approved as to style...Federal Troops in Quelling Civil Unrest in Washington, D.C., April 1968. (May 1994) Barrye La Troye Price, B.B.A., University of Houston Chair of

Energy Savings Analysis of the Proposed Revision of the Washington D.C. Non-Residential Energy Code

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rosenberg, Michael I.; Athalye, Rahul A.; Hart, Philip R.

This report presents the results of an assessment of savings for the proposed Washington D.C. energy code relative to ASHRAE Standard 90.1-2010. It includes annual and life cycle savings for site energy, source energy, energy cost, and carbon dioxide emissions that would result from adoption and enforcement of the proposed code for newly constructed buildings in Washington D.C. over a five year period.

Triage and Injury Severity Scoring Systems Conference Held at Washington, D.C. on 26-28 September 1983.

DTIC Science & Technology

1984-02-01

AD = 37 925 TRIAGE AND INJURY SEVERITY SCORING SYSTEMS CONFERENCE i (U) WASHINGTON HOSPITAL CENTER DC H R CHAMPION ET AL. FEB 84 DAMDI7-83-G-9529...PROCESSING SHEET PREVIOUS EDITION MAY 3E USED UNTIL CDTIC 70A STOCK IS EXHAUSTED. AD TRIAGE ALM INJURY SEVERITY SCORING SYSTEMS CONFERENCE FINAL REPORT... WORK UNIT NUMBERS The Washington Hospital Center 62734A.3MI62734A875.AG.151 Washington, D.C. 20010 I I. CONTROLLING OFFICE NAME AND ADDRESS 12. REPORT

The First Annual Health Promotion in Day Care Conference (Washington, D.C., April 7, 1984). Conference Proceedings Report.

ERIC Educational Resources Information Center

Hammonds, Karl E.; Brathwaite, Rudolph L.

Conducted to disseminate information about health care issues in the day care environment, the First Annual Health Promotion in Day Care Conference was attended by approximately 200 health care providers, parents, and advocates in the metropolitan Washington, D.C. area. Health needs of the total child were addressed, and practical recommendations…

76 FR 26336 - Notice of Final Federal Agency Actions on the Proposed Klingle Valley Trail in Washington, DC

Federal Register 2010, 2011, 2012, 2013, 2014

2011-05-06

... on the Proposed Klingle Valley Trail in Washington, DC AGENCY: Federal Highway Administration (FHWA... final within the meaning of 23 U.S.C. 139(l)(1). The actions relate to the proposed Klingle Valley Trail... approvals for the following project in Northwest Washington, DC: The Klingle Valley Trail project. The...

Do Not Forget About Public Transportation: Analysis of the Association of Active Transportation to School Among Washington, DC Area Children With Parental Perceived Built Environment Measures.

PubMed

Roberts, Jennifer D; Rodkey, Lindsey; Ray, Rashawn; Saelens, Brian E

2018-03-23

Although the active transportation (AT) indicator received an F grade on the 2016 US Report Card on Physical Activity for Children and Youth, this AT assessment excluded public transportation. An objective of the Built Environment and Active Play Study was to assess youth AT, including public transportation, among Washington, DC area children in relation to parental perceptions of neighborhood built environment (BE) variables. Questionnaires were mailed to 2000 parents of children aged 7-12 years. AT to school (ATS) was assessed with the question: "In an average school week, how many days does your child use each of the following ways to get to and from school? (a) Walk; (b) Bike; (c) Car; (d) Bus or Metro." Parental perceived BE data were obtained through questionnaire items, and logistic regression was conducted to determine if BE variables were associated with youth ATS. The sample included 144 children (50% female; average age 9.7 years; 56.3% white; 23.7% African American; 10.4% Asian American). Over 30% used ATS-public transportation 5 days per week, and nearly 13% used ATS-walking daily. Parental perceived BE variables significantly predicted youth ATS-walking and ATS-public transportation. ATS-public transportation is common among Washington, DC area youth, and parental perceptions of BE can significantly predict ATS.

Parks, Trees, and Environmental Justice: Field Notes from Washington, DC

ERIC Educational Resources Information Center

Buckley, Geoffrey L.; Whitmer, Ali; Grove, J. Morgan

2013-01-01

Students enrolled in a graduate seminar benefited in multiple ways from an intensive 3-day field trip to Washington, DC. Constructed around the theme of environmental justice, the trip gave students a chance to learn about street tree distribution, park quality, and racial segregation "up close." Working with personnel from the United…

School Vouchers and Student Outcomes: Experimental Evidence from Washington, DC

ERIC Educational Resources Information Center

Wolf, Patrick J.; Kisida, Brian; Gutmann, Babette; Puma, Michael; Eissa, Nada; Rizzo, Lou

2013-01-01

School vouchers are the most contentious form of parental school choice. Vouchers provide government funds that parents can use to send their children to private schools of their choice. Here we examine the empirical question of whether or not a school voucher program in Washington, DC, affected achievement or the rate of high school graduation…

77 FR 70964 - Security Zone, Potomac and Anacostia Rivers; Washington, DC

Federal Register 2010, 2011, 2012, 2013, 2014

2012-11-28

... 1625-AA87 Security Zone, Potomac and Anacostia Rivers; Washington, DC AGENCY: Coast Guard, DHS. ACTION... to establish a security zone during activities associated with the Presidential Inauguration in... extends the southern boundary of the proposed security zone. This rule prohibits vessels and people from...

78 FR 63251 - Board Meeting; November 20, 2013 in Washington, DC

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-23

... NUCLEAR WASTE TECHNICAL REVIEW BOARD Board Meeting; November 20, 2013 in Washington, DC The U.S. Nuclear Waste Technical Review Board will meet to discuss DOE SNF and HLW management research and... Policy Amendments Act of 1987, the U.S. Nuclear Waste Technical Review Board will hold a public meeting...

Ellis T. Cox: pragmatist with a public conscience. [Power; environmental concerns of Potomac Electric Co. for Washington, DC area

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1978-05-01

A profile of Potomac Electric Power Co. executive Ellis T. Cox EPRI Advisory Board member the obligation he feels for preserving the unique qualities of the Washington, D.C. area by installing power plant pollution equipment, burning low-sulfur coal, and setting an example of concern for other companies and the legislators. Cox feels a commitment to not only meet civic responsibilities, but to demonstrate that an efficient, cost-effective company can also protect the environment. He sets long-term fuel supplies as a high priority for utility research and development and sees no alternative to shifts away from petroleum and further development ofmore » nuclear generating power. His other concerns are for streamlining the regulatory process, demonstrating the Civex process as an alternative fuel cycle, and a continuation of the joint efforts of utilities and the Electric Power Research Institute to solve practical problems of pollution control and develop new fuels and new combustion technologies.« less

The 13th Annual Legislative Summit (Washington, DC, 2010). Briefing Papers

ERIC Educational Resources Information Center

National Indian Education Association, 2010

2010-01-01

This volume contains briefing papers presented at the 13th Annual National Indian Education Association (NIEA) Legislative Summit held in Washington, DC. The following papers are included: (1) NIEA Appropriations Priorities for FY11; (2) The President's Budget Request for Fiscal Year 2011 for Native Education; (3) BIE Race to the Top; (4)…

78 FR 63250 - Workshop; November 18-19, 2013 in Washington, DC

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-23

... NUCLEAR WASTE TECHNICAL REVIEW BOARD Workshop; November 18-19, 2013 in Washington, DC The U.S... on Monday, November 18, and Tuesday, November 19, 2013, to identify issues related to how the use of... receive the group rate. The workshop will begin on Monday, November 18, at 1:00 p.m. with a series of...

Jobs: Employment Opportunities in the Washington Metropolitan Area for Persons with Limited Employment Qualifications.

ERIC Educational Resources Information Center

Bendick, Marc, Jr.; Egan, Mary Lou

Employment data for the Washington, D.C., metropolitan area were analyzed to determine jobs available to people who had not graduated from high school. Three hundred nine occupations offered at least some openings. These occupations encompassed 584,000 jobs and offered 14,000 openings in an average week. These numbers overestimated jobs available…

A Monumental Experience: The Undergraduate Program in Washington, DC

NASA Astrophysics Data System (ADS)

Betsock, Lori

2009-08-01

All undergraduate chemical science students are invited to attend the Undergraduate Program at the 238th ACS National Meeting in Washington, DC on August 16-17, 2009. This educational and career-oriented program is designed to increase our understanding of the world with chemistry. Symposia will focus on the chemistry of our oceans and atmosphere. Nobel Laureate Susan Solomon will be the featured Eminent Scientist speaker. Attend the Graduate School Reality Check and graduate school networking events to meet and talk with graduate school recruiters. All events will take place in the Capital Hilton (1001 16th Street NW), except for the Undergraduate Poster Session and Sci-Mix, which will be held in the Walter E. Washington Convention Center, located between 7th and 9th Streets and N Street and Mt. Vernon Place (approximately K Street).

Identification With Terrorist Victims of the Washington, DC Sniper Attacks: Posttraumatic Stress and Depression.

PubMed

Herberman Mash, Holly B; Ursano, Robert J; Benevides, K Nikki; Fullerton, Carol S

2016-02-01

In October 2002, a series of sniper attacks in the Washington, DC area left 10 people dead and 3 wounded. We examined the association between identification with terrorist victims and psychological and behavioral outcomes. Participants were 1,238 residents of the Washington, DC area (ages 18-90 years; M = 41.73, SD = 12.56) who completed the Impact of Event Scale-Revised, Patient Health Questionnaire-9, and items pertaining to identification with attack victims approximately 3 weeks following the first sniper shooting. We examined 3 types of identification with the victims: (a) as like oneself, (b) as like a friend, and (c) as like a family member. The relationships of identification to posttraumatic stress and depressive symptoms were examined using linear regression analyses. Greater total identification was associated with more posttraumatic stress and depressive symptoms (B = 0.27, p < .001, and B = 0.44, p < .001, respectively), after adjusting for demographics. Those who specifically identified with the victims as either self (B = 0.24, p < .001), friend (B = 0.30, p < .001), or family member (B = 0.27, p < .001) reported more PTSD symptoms (n = 1,101). Identifying with victims as like a friend or family member, but not as like oneself, was associated with increased depressive symptoms (B = 0.61, p < .001, and B = 0.45, p = .01, respectively; n = 1,222). Presence and type of identification play a differential role in psychological and behavioral responses during traumatic events. Copyright © 2016 International Society for Traumatic Stress Studies.

Geologic map of the Washington West 30’ × 60’ quadrangle, Maryland, Virginia, and Washington D.C.

USGS Publications Warehouse

Lyttle, Peter T.; Aleinikoff, John N.; Burton, William C.; Crider, E. Allen; Drake, Avery A.; Froelich, Albert J.; Horton, J. Wright; Kasselas, Gregorios; Mixon, Robert B.; McCartan, Lucy; Nelson, Arthur E.; Newell, Wayne L.; Pavlides, Louis; Powars, David S.; Southworth, C. Scott; Weems, Robert E.

2018-01-02

The Washington West 30’ × 60’ quadrangle covers an area of approximately 4,884 square kilometers (1,343 square miles) in and west of the Washington, D.C., metropolitan area. The eastern part of the area is highly urbanized, and more rural areas to the west are rapidly being developed. The area lies entirely within the Chesapeake Bay drainage basin and mostly within the Potomac River watershed. It contains part of the Nation's main north-south transportation corridor east of the Blue Ridge Mountains, consisting of Interstate Highway 95, U.S. Highway 1, and railroads, as well as parts of the Capital Beltway and Interstate Highway 66. Extensive Federal land holdings in addition to those in Washington, D.C., include the Marine Corps Development and Education Command at Quantico, Fort Belvoir, Vint Hill Farms Station, the Naval Ordnance Station at Indian Head, the Chesapeake and Ohio Canal National Historic Park, Great Falls Park, and Manassas National Battlefield Park. The quadrangle contains most of Washington, D.C.; part or all of Arlington, Culpeper, Fairfax, Fauquier, Loudoun, Prince William, Rappahannock, and Stafford Counties in northern Virginia; and parts of Charles, Montgomery, and Prince Georges Counties in Maryland.The Washington West quadrangle spans four geologic provinces. From west to east these provinces are the Blue Ridge province, the early Mesozoic Culpeper basin, the Piedmont province, and the Coastal Plain province. There is some overlap in ages of rocks in the Blue Ridge and Piedmont provinces. The Blue Ridge province, which occupies the western part of the quadrangle, contains metamorphic and igneous rocks of Mesoproterozoic to Early Cambrian age. Mesoproterozoic (Grenville-age) rocks are mostly granitic gneisses, although older metaigneous rocks are found as xenoliths. Small areas of Neoproterozoic metasedimentary rocks nonconformably overlie Mesoproterozoic rocks. Neoproterozoic granitic rocks of the Robertson River Igneous Suite intruded

Education and Workforce Development in the Washington, DC Area. Hearing of the Committee on Labor and Human Resources, United States Senate, One Hundred Fifth Congress, First Session on Examining Regional Economic Development in the Washington, DC Area and the Importance of Education and Training in that Process. It Also Examines Current Obstacles to Economic Growth, such as Poor Student Achievement and Crumbling School Buildings, as well as Regional Solutions to these Problems (January 13-15, 1998).

ERIC Educational Resources Information Center

Congress of the U.S., Washington, DC. Senate Committee on Labor and Human Resources.

This transcript contains the testimony of witnesses who testified or submitted written materials for hearings of the U.S. Senate Committee on Labor and Human Resources on the following topics: (1) labor market shortages in the information technology jobs from a national perspective and from the perspective of the Washington, DC area; (2) the…

Transmitted HIV Drug Resistance Is High and Longstanding in Metropolitan Washington, DC

PubMed Central

Kassaye, Seble G.; Grossman, Zehava; Balamane, Maya; Johnston-White, Betsy; Liu, Chenglong; Kumar, Princy; Young, Mary; Sneller, Michael C.; Sereti, Irini; Dewar, Robin; Rehm, Catherine; Meyer, William; Shafer, Robert; Katzenstein, David; Maldarelli, Frank

2016-01-01

Background. Washington, DC, has 2.5% human immunodeficiency virus (HIV) prevalence, 3.9% among African Americans. Antiretrovirals (ARTs) are the cornerstone for treatment and prevention. Monitoring changes in transmitted drug resistance (TDR) is critical for effective HIV care. Methods. HIV genotype data for individuals enrolled in research studies in metropolitan Washington, D.C., were used to identify TDR using the World Health Organization mutation list [Bennett DE, Camacho RJ, Otelea D, et al. Drug resistance mutations for surveillance of transmitted HIV-1 drug-resistance: 2009 update. PloS One 2009; 4:e4724]. HIV phylogenies were reconstructed using maximum likelihood and Bayesian methods. HIV transmission clusters were supported by 1000 bootstrap values >0.70 and posterior probability >0.95 of having a common ancestor. Results. Among 710 individuals enrolled in 1994–2013, the median age was 38.6 years, 46.2% were female, and 53.3% were African-American. TDR was 22.5% among 566 treatment-naive individuals; 15.8% had nucleoside/nucleotide reverse transcriptase inhibitor (NRTI) resistance, 9.8% had nonnucleoside reverse-transcriptase inhibitor (NNRTI) resistance, and 4.2% had protease inhibitor (PI) resistance. Single class TDR was 10.0%, 5.1%, and 1.6% to NRTIs, NNRTIs, and PIs. Dual TDR to PI and NRTI was seen in 1.6%, NRTI and NNRTI in 3.4%, and triple class TDR in 0.9%. TDR frequency decreased from 1994–2006 (27.1%) to 2007–2013 (19.4%; P = .02). Only 6/79 (7.6%) individuals within transmission clusters had evidence of TDR. Discussions. We identified high prevalence of TDR among HIV-infected individuals in metropolitan Washington, DC, regardless of gender. Active surveillance for TDR is needed to guide ART usage and analyses of risk group contributions to HIV transmission and resistance. PMID:27307507

DoD Metric Seminar/Workshop (1980) Held in Washington, DC 18-20 November 1980.

DTIC Science & Technology

1981-04-23

SECTION OF THE FEDERAL REGISTER IN FINAL FORM ON SEPTEMBER 16, 1980. ADDITIONALLY, THE BOARD HAS IN COOPERATION WITH THE DEPARTMENT OF JUSTICE AND THE...TRLMBLE Mr. Trimble was born in Alabama and reared in Virginia. He graduated from the United States Military Academy in 1945 with a Bachelor of Science...BF685A, The Pentagon Washington, DC 20301 202-695-9996 AV 225-9996 119. Wilton McIntosh Bureau of Medicine and Surgery Department of the Navy Washington

Residential Energy Efficiency Research Planning Meeting Summary Report: Washington, D.C. - October 27-28, 2011

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

2012-02-01

This report summarizes key findings and outcomes from the U.S. Department of Energy's Building America Residential Energy Efficiency Research Planning meeting, held on October 28-29, 2011, in Washington, D.C.

A Report on the Role and Penetration of Sesame Street in Ghetto Communities (Bedford Stuyvesant, East Harlem, Chicago and Washington, D.C.).

ERIC Educational Resources Information Center

Children's Television Workshop, New York, NY.

Three major themes dominated the results of a 1973 survey conducted for the Children's Television Workshop in ghetto areas of New York, Chicago, and Washington, D.C. First, comparison of survey data with data from studies conducted in 1970 and 1971 showed that Sesame Street had become an institution with ghetto children, its penetration and…

Examining the Influence of a New Light Rail Line on the Health of a Demographically Diverse and Understudied Population within the Washington, D.C. Metropolitan Area: A Protocol for a Natural Experiment Study

PubMed Central

Saksvig, Brit Irene; Brachman, Micah L.; Durand, Casey P.

2018-01-01

Approximately two-thirds of adults and youth in Prince George’s County, Maryland, a suburb of Washington, D.C. are overweight or obese and less than half are achieving daily physical activity recommendations. Active transportation (AT), such as walking, biking or using public transportation (PT), is a strategic pathway to improving physical activity levels and thus reducing excess weight. Utilizing an expansion of the Washington, D.C. area transportation system with a new light rail line, the Purple Line Outcomes on Transportation (PLOT) Study will exam pre- and post-Purple Line PT use, AT behaviors and attitudes and physical activity among Prince George’s County adults and youth. The PLOT Study will take advantage of this natural experiment in an area enduring significant racial/ethnic and gender-based overweight or obesity and physical inactivity disparities. While similar natural experiments on AT have been conducted in other U.S. cities, those studies lacked diverse and representative samples. To effectively evaluate these physical activity outcomes among this population, efforts will be used to recruit African American and Latino populations, the first and second most common racial/ethnic groups in Prince George’s County. Finally, the PLOT Study will also examine how contextual effects (e.g., neighborhood built environment) impact PT, AT and physical activity.

Can learning in informal settings mitigate disadvantage and promote urban sustainability? School gardens in Washington, DC

NASA Astrophysics Data System (ADS)

Fisher-Maltese, Carley; Fisher, Dana R.; Ray, Rashawn

2017-09-01

This article explores how school gardens provide learning opportunities for school-aged children while concurrently helping cities achieve sustainability. The authors analyse this process in Washington, DC, a particularly innovative metropolis in the United States. This national capital city boasts two of the most progressive examples of legislation aimed at improving environmental awareness and inciting citizens to engage in environmental stewardship, both of which focus on school-aged children: (1) the Healthy Schools Act of 2010 and (2) the Sustainable DC Act of 2012. Together these policies focus on bringing healthy lifestyles and environmental awareness, including meaningful outdoor learning experiences, to students and families in the District of Columbia. This article is organised into three parts. The first part discusses how Washington, DC became a sustainable learning city through the implementation of these specific policies. The next part presents the results of a pilot study conducted in one kindergarten to Grade 5 (K-5) elementary school located in Ward 8, the poorest part of the city. The authors' analysis considers the support and the obstacles teachers and principals in the District of Columbia (DC) are experiencing in their efforts to integrate school gardens into the curriculum and the culture of their schools. Exploring the impacts of the school garden on the students, the local community, and the inter-generational relationships at and beyond schools, the authors aim to shed light on the benefits and the challenges. While Washington, DC is fostering its hope that the benefits prevail as it provides a model for other cities to follow, the authors also candidly present the challenges of implementing these policies. In the final part, they discuss the implications of their findings for school gardens and sustainable learning cities more broadly. They encourage further research to gain more insights into effective ways of promoting environmental

Proceedings of the International Literacy Day Conference (Washington, D.C., September 8, 1978).

ERIC Educational Resources Information Center

Diamond, Stuart, Ed.

This report contains the proceedings of the International Literacy Day Conference held in Washington, D.C., on September 8, 1978. It contains a program of conference events, an executive summary, a message from the vice president of the United States, and the text of the proceedings. The proceedings include introductory remarks by Edwin Newman; a…

Pre-IGY Ionosphere Over Washington D.C

NASA Astrophysics Data System (ADS)

Rice, D. D.; Sojka, J. J.; Eccles, J. V.; Hunsucker, R. D.

2012-12-01

A data recovery study has been sponsored by the NSF to determine how successfully the ionosphere during a pre-IGY era can be inferred from archived ionogram films. This pilot study targets the Washington, DC ionosonde WA938 located at Ft. Belvoir in Fairfax, VA (38.7° N, -77.1° E). The focus of the study is 1951, 61 years ago, or about 5 1/2 solar cycles ago. The ionosonde was a model C-3 designed by the National Bureau of Standards (NBS). Ionograms were taken at approximately six per hour, but not uniformly spaced in time. These were recorded on an extended frame 35 mm film. Between 2-4 weeks of ionograms were recorded on a single film reel. These films were archived at the NOAA's National Geophysical Data Center (NGDC), also known as a World Data Center . Over the past five years, NGDC has been able to digitize several months from selected years of these films. These digitized ionogram images are the starting point for the ionospheric data analysis for this study. SEC has developed an image processing technique called the Expert System for Ionogram Reduction (ESIR), which has been patented [Sojka et al. 2009]. This software was developed specifically to recognize and invert an ionogram from a photographic image, producing an equivalent ionospheric electron density profile. The recognition of both virtual height and frequency axes in these ionogram photos is discussed. We demonstrate how we can validate and calibrate these scales independent of the ionosonde's virtual height and frequency markings. Examples during several months of 1951 of the automated ESIR ionogram reduction will be provided. These examples will be presented in the context of how the mid-latitude ionosphere over Washington DC in 1951 compares with the present-day ionosphere. Limitations in the data extraction are discussed from a point of view of how they might affect confidence in the inferred long-term trends in the ionosphere. Reference: Sojka J. J., D. C. Thompson, D. D. Rice (2009

Modeling the effect of transient populations on epidemics in Washington DC.

PubMed

Parikh, Nidhi; Youssef, Mina; Swarup, Samarth; Eubank, Stephen

2013-11-06

Large numbers of transients visit big cities, where they come into contact with many people at crowded areas. However, epidemiological studies have not paid much attention to the role of this subpopulation in disease spread. We evaluate the effect of transients on epidemics by extending a synthetic population model for the Washington DC metro area to include leisure and business travelers. A synthetic population is obtained by combining multiple data sources to build a detailed minute-by-minute simulation of population interaction resulting in a contact network. We simulate an influenza-like illness over the contact network to evaluate the effects of transients on the number of infected residents. We find that there are significantly more infections when transients are considered. Since much population mixing happens at major tourism locations, we evaluate two targeted interventions: closing museums and promoting healthy behavior (such as the use of hand sanitizers, covering coughs, etc.) at museums. Surprisingly, closing museums has no beneficial effect. However, promoting healthy behavior at the museums can both reduce and delay the epidemic peak. We analytically derive the reproductive number and perform stability analysis using an ODE-based model.

Modeling the effect of transient populations on epidemics in Washington DC

NASA Astrophysics Data System (ADS)

Parikh, Nidhi; Youssef, Mina; Swarup, Samarth; Eubank, Stephen

2013-11-01

Large numbers of transients visit big cities, where they come into contact with many people at crowded areas. However, epidemiological studies have not paid much attention to the role of this subpopulation in disease spread. We evaluate the effect of transients on epidemics by extending a synthetic population model for the Washington DC metro area to include leisure and business travelers. A synthetic population is obtained by combining multiple data sources to build a detailed minute-by-minute simulation of population interaction resulting in a contact network. We simulate an influenza-like illness over the contact network to evaluate the effects of transients on the number of infected residents. We find that there are significantly more infections when transients are considered. Since much population mixing happens at major tourism locations, we evaluate two targeted interventions: closing museums and promoting healthy behavior (such as the use of hand sanitizers, covering coughs, etc.) at museums. Surprisingly, closing museums has no beneficial effect. However, promoting healthy behavior at the museums can both reduce and delay the epidemic peak. We analytically derive the reproductive number and perform stability analysis using an ODE-based model.

WORKPLACE CHARACTERISTICS ASSOCIATED WITH HEALTH AND COMFORT CONCERNS IN THREE OFFICE BUILDINGS IN WASHINGTON, DC

EPA Science Inventory

Nearly 4000 employees of a Federal Agency in Washington, DC were surveyed in March of 1989 to determine their health symptoms, comfort concerns, and reports of odor during the previous year. Their personal characteristics and perceptions of workplace conditions were also determin...

2013 EFRC PI Meeting -- Science for Our Nation's Energy Future: Energy Frontier Research Centers Principal Investigators' Meeting, Washington, D.C., July 18-19, 2013

DOE Office of Scientific and Technical Information (OSTI.GOV)

None, None

2013 EFRC Principal Investigators’ Meeting, July 18-19, 2013 in Washington D.C. By invitation only--about 500 attendees from the EFRCs and DOE, 235 senior EFRC members and 165 EFRC early career scientists from more than 80 institutions in 31 states, 2 foreign countries and Washington D.C. Over 115 talks and 225 posters

Tidal river sediments in the Washington, D.C. area. 111 Biological effects associated with sediment contamination

DOE Office of Scientific and Technical Information (OSTI.GOV)

Schlekat, C.E.; McGee, B.L.; Boward, D.M.

1994-06-01

Sediment toxicity and benthic marcroinvertebrate community structure were measured as one component of a study conceived to determine the distribution and effect of sediment contamination in tidal freshwater portions of the Potomac and Anacostia rivers in the Washington, D.C., area. Samples were collected at 15 sites. Analyses included a partial life cycle (28 d) whole sediment test using the amphipod Hyalella azteca (Talitridae) and an assessment of benthic community structure. Survival and growth (as estimated by amphipod length) were experimental endpoints for the toxicity test. Significant mortality was observed in 5 to 10 sites in the lower Anacostia River basinmore » and at the main channel Potomac River site. Sublethal toxicity, as measured by inhibition of amphipod growth, was not observed. Toxicity test results were in general agreement with synoptically measured sediment contaminant concentrations. Porewater total ammonia (NH{sub 3} + NH{sub 4}{sup +}) appears to be responsible for the toxicity of sediments from the Potomac River, while correlation analysis and simultaneously extracted metals: acid volatile sulfide (SEM:AVA) results suggest that the toxicity associated with Anacostia River sediments was due to organic compounds. Twenty-eight macroinvertebrate taxa were identified among all sites, with richness varying from 5 to 17 taxa per site. Groups of benthic assemblages identified by group-average cluster analysis exhibited variable agreement with sediment chemical and sediment toxicity results. Integration of toxicological, chemical, and ecological components suggests that adverse environmental effects manifest in lower Anacostia River benthos result from chemical contamination of sediment. 37 refs., 2 figs., 7 tabs.« less

Examining the speed-flow-delay paradox in the Washington, DC region : potential impacts of reduced traffic on congestion delay and potential for reductions in discretionary travel during peak periods.

DOT National Transportation Integrated Search

2008-12-01

Traffic congestion in the Washington, DC area, especially congestion on our freeways, costs our residents every day : in terms of wasted time, fuel, and increased air pollution. Highway studies have determined that once traffic volumes : exceed the c...

Tidal river sediments in the Washington, D.C. area. 1. Distribution and sources of trace metals

DOE Office of Scientific and Technical Information (OSTI.GOV)

Velinsky, D.J.; Wade, T.L.; Schlekat, C.E.

1994-06-01

Thirty-three bottom sediments were collected from the Potomac and Anacostia rivers, Tidal Basin, and Washington Ship Channel in June 1991 to define the extent of trace metal contamination and to elucidate source areas of sediment contaminants. In addition, twenty-three sediment samples were collected directly in front of and within major storm and combined sewers that discharge directly to these areas. Trace metals (e.g., Cu, Crk Cd, Hg, Pb, and Zn) exhibited a wide range in values in the study area. Sediment concentrations of Pb ranged from 32.0{mu}g Pb g {sup -1} to 3,630 {mu}g Pb g{sup -1}, Cd from 0.24more » {mu}g Cd g{sup -1} to 4.1 {mu}g Cd g{sup -1}, and Hg from 0.13 {mu}g g{sup -1} to 9.2 {mu}g Hg g{sup -1}, with generally higher concentrations in either outfall or sewer sediments compared to river bottom-sediments. In the Anacostia River measurements indicate that numerous storm and combined sewers are major sources of trace metals. Similar results were observed in both the Tidal Basin and Washington Ship Channel. Cadmium and Pb concentrations are higher in specific sewers and outfalls, whereas the distribution of other metals suggests a more diffuse source to the rivers and basins of the area. Cadmium and Pb also exhibited the greatest enrichment throughout the study area, with peak values in the Anacostia River, near the Washington Navy Yard. Enrichment factors decrease in the order: Cd>Pb>Zn>Hg>Cu>Cr. Between 70% and 96% of sediment-bound Pb and Cd was released from a N{sub 2}-purged 1N HCI leach. On average, {le}40% of total sedimentary Cu was liberated, possibly due to the partial attack of organic components of the sediment. Sediments of the tidal freshwater portion of the Potomac estuary reflect moderate to highly contaminated area with substantial enrichments of sedimentary Pb, Cd, and Zn. The sediment phase containing these metals indicates potential mobility of the sediment-bound metals during either storm events or dredging. 39 refs., 5 figs

Report of the Annual Scientific Sessions of the American College of Cardiology (ACC), Washington DC.

PubMed

Hiro, Takafumi

2017-05-25

The 66 th Annual Scientific Sessions and Expo of the American College of Cardiology (ACC) were held at the Walter E. Washington Convention Center, Washington DC, from March 17 th to 19 th , 2017. This meeting offered 23 Late-Breaking Clinical Trial (LBCT) presentations, 17 Featured Clinical Research presentations with and without LBCT, and 2,572 abstracts presented in oral and poster sessions by over 2,000 experts. This report presents the highlights of this meeting, including the opening showcase, several important LBCTs and some international joint symposiums.

Washington: Hanford Nuclear Reservation

Atmospheric Science Data Center

2014-05-15

... is seen wending its way around the area, and the Snake River branches off to the right. According to Idaho's National Interagency Fire ... NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Science Mission Directorate, Washington, D.C. The Terra spacecraft is managed ...

Infant Mortality in Washington, D.C.: A Study of Risk Factors among Black Residents.

ERIC Educational Resources Information Center

Ahmed, Feroz

This report examines the determinants of the high level of infant mortality in Washington, D.C. Data were analyzed for 36,872 black resident single-delivery births occurring in the years 1980 through 1984, and 762 infant deaths occurring to these birth cohorts from 1980 to 1985. Findings were the following: (1) poor birthweight distribution among…

77 FR 55265 - Environmental Impact Statement for the Northeast Corridor Between Washington, DC, New York, NY...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-09-07

... the Northeast Corridor Between Washington, DC, New York, NY, and Boston, MA AGENCY: Federal Railroad... ). SUPPLEMENTARY INFORMATION: FRA is leading the planning and environmental evaluation of the Northeast Corridor (NEC) in close coordination with the involved states, Northeast Corridor Infrastructure and Operations...

Satellite Sees Holiday Lights Brighten Cities - Washington, D.C., and Baltimore

NASA Image and Video Library

2017-12-08

City lights shine brighter during the holidays in the United States when compared with the rest of the year, as shown using a new analysis of daily data from the NASA-NOAA Suomi NPP satellite. Dark green pixels are areas where lights are 50 percent brighter, or more, during December. Because snow reflects so much light, the researchers could only analyze snow-free cities. They focused on the U.S. West Coast from San Francisco and Los Angeles, and cities south of a rough imaginary line from St. Louis to Washington, D.C. Credit: Jesse Allen, NASA’s Earth Observatory Read more: www.nasa.gov/content/goddard/satellite-sees-holiday-light....NASA image use policy. NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram

Space Station Crew Discusses Life in Space with Students in Washington, D.C.

NASA Image and Video Library

2017-09-27

Aboard the International Space Station, Expedition 53 Commander Randy Bresnik of NASA discussed life and research on the orbital outpost during an educational in-flight event Sept. 27 with students gathered at the National Air and Space Museum in Washington, D.C. The so-called “STEM in 30” group of students is focused on investigations regarding station science and Bresnik’s contributions to the research being conducted in orbit.

ALA 2010: Where to Eat in DC

ERIC Educational Resources Information Center

Library Journal, 2010

2010-01-01

As host to visitors and transplants from around the world, Washington, DC, benefits from the constant infusion of different cultures. Although most neighborhoods lack a unified culinary flavor, make no mistake: DC is a city of distinctive areas, each with its own style, ensuring that hungry American Library Association (ALA) 2010 conference…

Distress of Routine Activities and Perceived Safety Associated with Post-Traumatic Stress, Depression, and Alcohol Use: 2002 Washington, DC, Sniper Attacks.

PubMed

Fullerton, Carol S; Herberman Mash, Holly B; Benevides, K Nikki; Morganstein, Joshua C; Ursano, Robert J

2015-10-01

For over 3 weeks in October 2002, a series of sniper attacks in the Washington, DC, area left 10 people dead and 3 wounded. This study examined the relationship of distress associated with routine activities and perceived safety to psychological and behavioral responses. Participants were 1238 residents of the Washington, DC, metropolitan area (aged 18 to 90 years, mean=41.7 years) who completed an Internet survey including the Impact of Event Scale-Revised, Patient Health Questionnaire-9, and items pertaining to distress related to routine activities, perceived safety, and alcohol use. Data were collected at one time point approximately 3 weeks after the first sniper shooting and before apprehension of the suspects. Relationships of distress and perceived safety to post-traumatic stress, depressive symptoms, and increased alcohol use were examined by using linear and logistic regression analyses. Approximately 8% of the participants met the symptom criteria for probable post-traumatic stress disorder, 22% reported mild to severe depression, and 4% reported increased alcohol use during the attacks. Distress related to routine activities and perceived safety were associated with increased post-traumatic stress and depressive symptoms and alcohol use. Distress and perceived safety are associated with specific routine activities and both contribute to psychological and behavioral responses during a terrorist attack. These findings have implications for targeted information dissemination and risk communication by community leaders.

Can Learning in Informal Settings Mitigate Disadvantage and Promote Urban Sustainability? School Gardens in Washington, DC

ERIC Educational Resources Information Center

Fisher-Maltese, Carley; Fisher, Dana R.; Ray, Rashawn

2018-01-01

This article explores how school gardens provide learning opportunities for school-aged children while concurrently helping cities achieve sustainability. The authors analyse this process in Washington, DC, a particularly innovative metropolis in the United States. This national capital city boasts two of the most progressive examples of…

Spacelab ready for transport to Washington, DC

NASA Technical Reports Server (NTRS)

1998-01-01

Spacelab is wrapped and ready for transport to the National Air and Space Museum in Washington, DC. Spacelab was designed by the European Space Agency (ESA) for the Space Shuttle program and first flew on STS-9 in November 1983. Its final flight was the STS-90 Neurolab mission in April 1998. A sister module will travel home and be placed on display in Europe. The Spacelab concept of modular experiment racks in a pressurized shirt-sleeve environment made it highly user-friendly and accessible. Numerous experiments conceived by hundreds of scientists on the ground were conducted by flight crews in orbit. Spacelab modules served as on-orbit homes for everything from squirrel monkeys to plant seeds. They supported astronomical as well as Earth observations, for servicing the Hubble Space Telescope and for research preparatory to the International Space Station. One of the greatest benefits afforded by the Spacelab missions was the opportunity to fly a mission more than once, with the second or third flight building on the experiences and data gathered from its predecessors.

Digest of Papers: Forty-Eighth Annual Meeting of American Orthopsychiatric Association (Washington, D.C., March 21-24, 1971)

ERIC Educational Resources Information Center

Eisenberg, Leon, Ed.

1971-01-01

The entire journal contains summaries of topics and papers delivered at the Annual Meeting of American Orthopsychiatry (48th, March 21-24, 1971, Washington, D.C.). Author, title, and session indexes are provided. (RD)

Washington Headquarters Services

Science.gov Websites

Status OPM Status: Open Open Main Navigation Home Our Services Our Customers Our People Our Leaders Our Organization Contact Us CAC Site Navigation Customers Employees Our Services Our Customers Our People Our facilities in the Washington, DC area. Read more about Our Customers Our People A picture with the left edge

Making Difficult History Public: The Pedagogy of Remembering and Forgetting in Two Washington DC Museums

ERIC Educational Resources Information Center

Segall, Avner

2014-01-01

In this article, Avner Segall explores some pedagogical processes in the context of two museums in Washington, DC, that focus on difficult knowledge, the National Museum of the American Indian (NMAI) and the United States Holocaust Memorial Museum. In doing so, Segall's aim is not to explore the museums as a whole or provide a comprehensive…

Cigarette price variation around high schools: evidence from Washington DC.

PubMed

Cantrell, Jennifer; Ganz, Ollie; Anesetti-Rothermel, Andrew; Harrell, Paul; Kreslake, Jennifer M; Xiao, Haijun; Pearson, Jennifer L; Vallone, Donna; Kirchner, Thomas R

2015-01-01

This study examines lowest cigarette prices in all tobacco retail outlets in Washington D.C. (n=750) in relation to the type and number of high schools nearby, controlling for confounders. The lowest overall and Newport menthol prices were significantly lower at outlets near public non-charter and charter schools compared with outlets near private schools. Given higher smoking prevalence and more price-sensitive youth subgroups in U.S. public schools, exposure to low prices may contribute to tobacco-related health disparities in minority and low-income populations. Tobacco taxes combined with policies to minimize the increasing use of price as a marketing tool are critical. Copyright © 2014 Elsevier Ltd. All rights reserved.

An Analysis of Wintertime Winds in Washington, D.C.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Berg, Larry K.; Allwine, K Jerry

This report consists of a description of the wintertime climatology of wind speed and wind direction around the National Mall in Washington, D.C. Meteorological data for this study were collected at Ronald Reagan Washington National Airport (Reagan National), Dulles International Airport (Dulles), and a set of surface meteorological stations that are located on a number of building tops around the National Mall. A five-year wintertime climatology of wind speed and wind direction measured at Reagan National and Dulles are presented. A more detailed analysis was completed for the period December 2003 through February 2004 using data gathered from stations locatedmore » around the National Mall, Reagan National, and Dulles. Key findings of our study include the following: * There are systematic differences between the wind speed and wind direction observed at Reagan National and the wind speed and wind direction measured by building top weather stations located in the National Mall. Although Dulles is located much further from the National Mall than Reagan National, there is better agreement between the wind speed and wind direction measured at Dulles and the weather stations in the National Mall. * When the winds are light (less than 3 ms-1 or 7 mph), there are significant differences in the wind directions reported at the various weather stations within the Mall. * Although the mean characteristics of the wind are similar at the various locations, significant, short-term differences are found when the time series are compared. These differences have important implications for the dispersion of airborne contaminants. In support of wintertime special events in the area of the National Mall, we recommend placing four additional meteorological instruments: three additional surface stations, one on the east bank of the Potomac River, one south of the Reflecting Pool (to better define the flow within the Mall), and a surface station near the Herbert C. Hoover Building

Research in Medical Education: Proceedings of the Annual Conference (38th, Washington, DC, October 25-27, 1999).

ERIC Educational Resources Information Center

Anderson, M. Brownell, Ed.

1999-01-01

The Proceedings of the 38th Annual Conference on Research in Medical Education (Washington, DC, October 25-27, 1999) contain 43 research papers on innovative curricula, diagnostic reasoning, student evaluations of faculty, practicing physicians, prediction, licensing examinations, admissions, faculty development, managed care, technology-enhanced…

Healthy School Environment and Enhanced Educational Performance: The Case of Charles Young Elementary School, Washington, DC.

ERIC Educational Resources Information Center

Berry, Michael A.

This report presents a case study of the renovation of Charles Young Elementary School in Washington, DC, focusing on how an improved school environment contributed to higher levels of educational performance. The school was chosen as a school revitalization demonstration project for the Urban Schools Initiative. The objective of the project was…

Enjoying green cities: Assessing visitors' attitude and preferences of urban forests in Washington, D.C.

Treesearch

Rogelio II Andrada; Jinyang Deng

2012-01-01

This study examined the attitudes and preferences of visitors toWashington, D.C., one of the top tourism cities in the United States. Results of a visitor survey conducted at two sites show that respondents have a highly positive attitude towards the city's urban forest and that their appreciation of the urban forest has a positive influence on their experiences...

GPS-ABC radiated chamber testing overview and results : GPS-ABC Workshop VI : RTCA Washington, DC, March 30, 2017.

DOT National Transportation Integrated Search

2017-03-30

This presentation, which was given during the GPS-ABC Workshop VI in Washington, DC on March 30, 2017 details the authors' radiated testing protocols and results. GPS receiver testing was carried out April 25-29, 2016 at the Army : Research Laborator...

The Influence of Family Dog Ownership and Parental Perceived Built Environment Measures on Children's Physical Activity within the Washington, DC Area.

PubMed

Roberts, Jennifer D; Rodkey, Lindsey; Grisham, Cortney; Ray, Rashawn

2017-11-16

Sedentary behavior and physical inactivity are significant contributors to youth obesity in the United States. Neighborhood dog walking is an outlet for physical activity (PA). Therefore, understanding the relationship between built environment, dog ownership, and youth PA is essential. This study examined the influence of dog ownership and parental built environment perceptions on children's PA in the Washington, D.C. area. In 2014, questionnaires were mailed to 2000 parents to assess family dog ownership; children's outdoor dog walking or playing; and parental perceived built environment measures. Chi-square analyses examined differences in parental perceived built environment measures between children with and without family dogs. The sample included 144 children (50% female; average-age 9.7 years; 56.3% White; 23.7% African-American; 10.4% Asian-American; 29.9% owned dog). Only 13% and 5.6% of the children walked or played outdoors with the dog daily, respectively. A significantly greater proportion ( p -value < 0.05) of parents who owned dogs recognized and observed some home built environment measures (e.g., traffic speed on most streets is 30 mph or less) that were PA -promoting for their children. Findings suggest that dog ownership may provide more positive parental perceptions of the neighborhood built environment, which supports children's outdoor PA through dog walking and playing.

Summary Proceedings of the Future Navigation Systems Planning Conference, held 3-4 August 1982, Washington, DC.

DTIC Science & Technology

1982-09-01

U.S. civil system managed by the civil administration, but it would be even easier if it were a system agreed to and Jointly financed by ICAO or some... Unicorns Park Drive 955 L’Enfant Plaza Woburn, MA 01801 Washington, D.C. 20024 84 r. C. Dennis Wright Aircraft Owners & Pilots Association P.O. Box 5800

Cyanobacteria cause black staining of the National Museum of the American Indian Building, Washington, DC, USA.

PubMed

Cappitelli, Francesca; Salvadori, Ornella; Albanese, Domenico; Villa, Federica; Sorlini, Claudia

2012-01-01

Microbial deterioration of stone is a widely recognised problem affecting monuments and buildings all over the world. In this paper, dark-coloured staining, putatively attributed to microorganisms, on areas of the National Museum of the American Indian Building, Washington, DC, USA, were studied. Observations by optical and electron microscopy of surfaces and cross sections of limestone indicated that biofilms, which penetrated up to a maximum depth of about 1 mm, were mainly composed of cyanobacteria, with the predominance of Gloeocapsa and Lyngbya. Denaturing gradient gel electrophoresis analysis revealed that the microbial community also included eukaryotic algae (Trebouxiophyceae) and fungi (Ascomycota), along with a consortium of bacteria. Energy-dispersive X-ray spectroscopy analysis showed the same elemental composition in stained and unstained areas of the samples, indicating that the discolouration was not due to abiotic chemical changes within the stone. The dark pigmentation of the stone was correlated with the high content of scytonemin, which was found in all samples.

Association between children's blood lead levels, lead service lines, and water disinfection, Washington, DC, 1998-2006.

PubMed

Brown, Mary Jean; Raymond, Jaime; Homa, David; Kennedy, Chinaro; Sinks, Thomas

2011-01-01

Evaluate the effect of changes in the water disinfection process, and presence of lead service lines (LSLs), on children's blood lead levels (BLLs) in Washington, DC. Three cross-sectional analyses examined the relationship of LSL and changes in water disinfectant with BLLs in children <6 years of age. The study population was derived from the DC Childhood Lead Poisoning Prevention Program blood lead surveillance system of children who were tested and whose blood lead test results were reported to the DC Health Department. The Washington, DC Water and Sewer Authority (WASA) provided information on LSLs. The final study population consisted of 63,854 children with validated addresses. Controlling for age of housing, LSL was an independent risk factor for BLLs ≥ 10 μg/dL, and ≥ 5 μg/dL even during time periods when water levels met the US Environmental Protection Agency (EPA) action level of 15 parts per billion (ppb). When chloramine alone was used to disinfect water, the risk for BLL in the highest quartile among children in homes with LSL was greater than when either chlorine or chloramine with orthophosphate was used. For children tested after LSLs in their houses were replaced, those with partially replaced LSL were >3 times as likely to have BLLs ≥ 10 μg/dL versus children who never had LSLs. LSLs were a risk factor for elevated BLLs even when WASA met the EPA water action level. Changes in water disinfection can enhance the effect of LSLs and increase lead exposure. Partially replacing LSLs may not decrease the risk of elevated BLLs associated with LSL exposure. Copyright © 2010 Elsevier Inc. All rights reserved.

Map Sensitivity vs. Map Dependency: A Case Study of Subway Maps’ Impact on Passenger Route Choices in Washington DC

PubMed Central

Xu, John

2017-01-01

This paper addresses the key assumption in behavioral and transportation planning literature that, when people use a transit system more frequently, they become less dependent on and less sensitive to transit maps in their decision-making. Therefore, according to this assumption, map changes are much less impactful to travel decisions of frequent riders than to that of first-time or new passengers. This assumption—though never empirically validated—has been the major hurdle for transit maps to becoming a planning tool to change passengers’ behavior. This paper examines this assumption using the Washington DC metro map as a case study by conducting a route choice experiment between 30 Origin-Destination (O-D) pairs on seven metro map designs. The experiment targets two types of passengers: frequent metro riders through advertisements on a free daily newspaper available at DC metro stations, and general residents in the Washington metropolitan area through Amazon Mechanical Turk, an online crowdsourcing platform. A total of 255 and 371 participants made 2024 and 2960 route choices in the respective experiments. The results show that frequent passengers are in fact more sensitive to subtle changes in map design than general residents who are less likely to be familiar with the metro map and therefore unaffected by map changes presented in the alternative designs. The work disproves the aforementioned assumption and further validates metro maps as an effective planning tool in transit systems. PMID:29068371

Psychological resilience: the impact of affectivity and coping on state anxiety and positive emotions during and after the Washington, DC sniper killings.

PubMed

Moore, Philip J; Chrabaszcz, Jeffrey S; Peterson, Rolf A; Rohrbeck, Cynthia A; Roemer, Enid C; Mercurio, Andrea E

2014-01-01

This research examined the impact of affectivity and coping on state anxiety and positive emotions among young adults living in the Washington, DC metro area both during and after the Washington, DC sniper killings. Participants completed questionnaires during three waves of data collection: (1) during the sniper attacks (n=92); (2) within two weeks after the snipers were captured (n=45); and (3) six months later (n=43). Affectivity (measured by neuroticism) was significantly associated with state anxiety and positive emotions during all three time periods. Coping (measured by constructive thinking) predicted state anxiety and positive emotions during the shootings, but was unrelated to either outcome immediately after the attacks, and marginally related to them six months later. Consistent with the Dynamic Model of Affect, state anxiety and positive emotions were more strongly (and negatively) correlated with each other during the killings than they were after the snipers were apprehended. Taken together, these results support transactional models of stress that emphasize the interaction between dispositional and situational influences, and they suggest that affectivity reflects a fundamental set of reactions to one's environment, while coping dispositions result in more stress-specific responses. Additional theoretical and practical implications of these findings are also discussed.

Cancer prevention behaviors among African-American adults: a survey of wards 7 and 8 in Washington, DC.

PubMed Central

Shankar, S.; Kofie, V. Y.; Helzlsouer, K.; Rivo, M. L.; Bonney, G.

1995-01-01

A telephone survey of knowledge, attitude, and health practices regarding cancer was undertaken in wards 7 and 8, Washington, DC in 1988. These wards have the highest cancer rates in the city and are predominantly African American. Of the 670 randomly selected persons over 18 years of age, 243 were males and 427 were females. Among females, 84% believed cigarette smoking causes cancer, and 48% thought alcohol causes cancer; 31% smoked cigarettes and 38% consumed alcoholic beverages. Among males, 91% and 52% thought cigarettes and alcohol causes cancer respectively; 41% smoked and 54% consumed alcoholic beverages. Only 6% of the males over age 40 practiced all eight recommended cancer prevention behaviors, while 2% of the females over age 40 practiced all preventive health behaviors. Cancer preventive behavior was examined in relation to socioeconomic status. This study indicates that preventive health behaviors were not associated with socioeconomic status. Data suggest that cancer prevention and control programs and services targeted to this Washington, DC population should be increased and intensified. PMID:7869405

Quantifying the Consumptive Landscape in the Potomac Watershed Upstream From Washington DC

NASA Astrophysics Data System (ADS)

Kearns, M.; Zegre, N.; Fernandez, R.

2017-12-01

Some of the largest and fastest-growing eastern cities depend upon Appalachian headwaters for their fresh water. Today's relative abundance of water may be at risk: changes in climate and land use could alter the availability of surface water and human consumption could increase to meet the needs of a growing population and economy. Neither the supply of surface water nor the various withdrawals that support our population, irrigation, energy, and industry are distributed uniformly throughout our watersheds. This study correlates surface water withdrawals, consumptive use coefficients, and land-use/land-cover datasets to create a model for quantifying anthropogenic water consumption. The model suggests a method for downscaling and redistributing USGS county-level surface water withdrawals to 30 meter cells. Initially completed for the Potomac River watershed upstream from Washington DC's public supply intake, this approach could easily scale regionally or nationally. When combined with runoff estimates over the same landscape, the net-production or net-consumption of an area of interest may be calculated at high resolution. By better understanding the spatial relationship between hydrologic supply and demand, we can seek to improve the efficiency and security of our water resources.

T-38 Aircraft Fly Over Washington

NASA Image and Video Library

2012-04-05

Two NASA T-38 training jets are seen as they fly over Washington, DC, Thursday, April 5, 2012. NASA, in cooperation with the Federal Aviation Administration, conducted training and photographic flights over the DC metropolitan area. T-38 aircraft have been used for astronaut training for more than 30 years as they allow pilots and mission specialists to think quickly in changing situations, mental experiences the astronauts say are critical to practicing for the rigors of spaceflight. Photo Credit: (NASA/Bill Ingalls)

A Study to Identify Functions Which Inhibit or Facilitate the Health Care Delivery Process on Ward 51 at Walter Reed Army Medical Center, Washington, D.C.

DTIC Science & Technology

1980-08-01

PROCESS ON WARD 51 AT WALTER REED ARMY MEDICAL CENTER, WASHINGTON, D.C. A Problem-Solving Project D TIC Submitted to the Faculty of ELECTE- Baylor...HEALTH CARN DELIVERY PROCESS ON WARD 51 AT WALTER RIED ARM1Y MEDICAL CENTER, WASHINGTON, D.C. 12. PERSONAL AUTHOR(S) LTC Ella L. Fletcher 130. TYPE OF...functions which Inhibit or acqpiir’o delivery- process on Ward 51 at Walter Reed Army M6edical Center. The interaction among ps physicians, nurses

Making Our Presence Felt: Librarians Come to Washington and Get Their Concerns on the Agenda

ERIC Educational Resources Information Center

Albanese, Andrew; Bardales, Aida; Berry, John N., III; Datema, Jay; Fialkoff, Francine; Fox, Bette-Lee; Oder, Norman; Rogers, Michael; Williams, Wilda

2007-01-01

This article presents the highlights of the 2007 American Library Association (ALA) annual conference held at the Washington Convention Center in Washington, D.C. Hundreds of librarians showed up early for a day of service, volunteering in libraries, schools, and other Washington-area institutions. As the conference wound down, some 2000…

T-38 Aircraft Fly Over Washington

NASA Image and Video Library

2012-04-05

A NASA T-38 training jet is seen as it flies at 1500 feet over Washington, DC, Thursday, April 5, 2012. NASA, in cooperation with the Federal Aviation Administration, conducted training and photographic flights over the DC metropolitan area. T-38 aircraft have been used for astronaut training for more than 30 years as they allow pilots and mission specialists to think quickly in changing situations, mental experiences the astronauts say are critical to practicing for the rigors of spaceflight. Photo Credit: (NASA/Carla Cioffi)

Spatial and temporal structure of typhoid outbreaks in Washington, D.C., 1906-1909: evaluating local clustering with the Gi* statistic.

PubMed

Hinman, Sarah E; Blackburn, Jason K; Curtis, Andrew

2006-03-27

To better understand the distribution of typhoid outbreaks in Washington, D.C., the U.S. Public Health Service (PHS) conducted four investigations of typhoid fever. These studies included maps of cases reported between 1 May - 31 October 1906 - 1909. These data were entered into a GIS database and analyzed using Ripley's K-function followed by the Gi* statistic in yearly intervals to evaluate spatial clustering, the scale of clustering, and the temporal stability of these clusters. The Ripley's K-function indicated no global spatial autocorrelation. The Gi* statistic indicated clustering of typhoid at multiple scales across the four year time period, refuting the conclusions drawn in all four PHS reports concerning the distribution of cases. While the PHS reports suggested an even distribution of the disease, this study quantified both areas of localized disease clustering, as well as mobile larger regions of clustering. Thus, indicating both highly localized and periodic generalized sources of infection within the city. The methodology applied in this study was useful for evaluating the spatial distribution and annual-level temporal patterns of typhoid outbreaks in Washington, D.C. from 1906 to 1909. While advanced spatial analyses of historical data sets must be interpreted with caution, this study does suggest that there is utility in these types of analyses and that they provide new insights into the urban patterns of typhoid outbreaks during the early part of the twentieth century.

76 FR 12643 - Proposed Establishment of Helicopter Area Navigation (RNAV) Routes; Northeast United States

Federal Register 2010, 2011, 2012, 2013, 2014

2011-03-08

... (RNAV) Routes; Northeast United States AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... northeast corridor between the Washington, DC and New York City metropolitan areas. The FAA is proposing... northeast corridor between the New York City and Washington, DC, metropolitan areas. The routes would serve...

22 CFR Appendix A to Part 233 - Application for Compensation United States Agency for International Development Washington, DC 20523

Code of Federal Regulations, 2014 CFR

2014-04-01

... Agency for International Development Washington, DC 20523 A Appendix A to Part 233 Foreign Relations AGENCY FOR INTERNATIONAL DEVELOPMENT HASHEMITE KINGDOM OF JORDAN LOAN GUARANTEES ISSUED UNDER THE FURTHER CONTINUING APPROPRIATIONS ACT, 2013, DIV. F, PUB. L. 113-6-STANDARD TERMS AND CONDITIONS Pt. 233, App. A...

THE ROLE OF REMOTE SENSING IN IDENTIFYING BURIED WORLD WAR 1 MUNITIONS AT THE AMERICAN UNIVERSITY, WASHINGTON, D.C.

EPA Science Inventory

During World War 1, The American University in Washington D.C. was used by the U.S. Army as an experiment station for the development and testing of a variety of battlefield munitions including chemical weapons such as Mustard Gas, Phosgene, Ricin and Lewisite, among others. Afte...

THE ROLE OF REMOTE SENSING IN IDENTIFYING BURIED WORLD WAR I MUNITIONS AT THE AMERICAN UNIVERSITY, WASHINGTON, D.C.

EPA Science Inventory

During World War 1, The American University in Washington D.C. was used by the U.S. Army as an experiment station for the development and testing of a variety of battlefield munitions including chemical weapons such as Mustard Gas, Phosgene, Ricin and Lewisite, among others. Afte...

Information through Cooperative Action Library Services in Metropolitan Washington. Annual Report, 1975-1976.

ERIC Educational Resources Information Center

Gell, Marilyn, Ed.

The Librarians Technical Committee of the Metropolitan Washington D.C. Council of Governments (COG) is responsible for developing cooperative programs among libraries in the Washington metropolitan area (including parts of Maryland and Virginia), among libraries of all types, and between libraries and other agencies. The committee facilitates use…

Method development and survey of Sudan I–IV in palm oil and chilli spices in the Washington, DC, area

PubMed Central

Genualdi, Susie; MacMahon, Shaun; Robbins, Katherine; Farris, Samantha; Shyong, Nicole; DeJager, Lowri

2016-01-01

Sudan I, II, III and IV dyes are banned for use as food colorants in the United States and European Union because they are toxic and carcinogenic. These dyes have been illegally used as food additives in products such as chilli spices and palm oil to enhance their red colour. From 2003 to 2005, the European Union made a series of decisions requiring chilli spices and palm oil imported to the European Union to contain analytical reports declaring them free of Sudan I–IV. In order for the USFDA to investigate the adulteration of palm oil and chilli spices with unapproved colour additives in the United States, a method was developed for the extraction and analysis of Sudan dyes in palm oil, and previous methods were validated for Sudan dyes in chilli spices. Both LC-DAD and LC-MS/MS methods were examined for their limitations and effectiveness in identifying adulterated samples. Method validation was performed for both chilli spices and palm oil by spiking samples known to be free of Sudan dyes at concentrations close to the limit of detection. Reproducibility, matrix effects, and selectivity of the method were also investigated. Additionally, for the first time a survey of palm oil and chilli spices was performed in the United States, specifically in the Washington, DC, area. Illegal dyes, primarily Sudan IV, were detected in palm oil at concentrations from 150 to 24 000 ng ml−1. Low concentrations (< 21 μg kg−1) of Sudan dyes were found in 11 out of 57 spices and are most likely a result of cross-contamination during preparation and storage and not intentional adulteration. PMID:26824489

Method development and survey of Sudan I-IV in palm oil and chilli spices in the Washington, DC, area.

PubMed

Genualdi, Susie; MacMahon, Shaun; Robbins, Katherine; Farris, Samantha; Shyong, Nicole; DeJager, Lowri

2016-01-01

Sudan I, II, III and IV dyes are banned for use as food colorants in the United States and European Union because they are toxic and carcinogenic. These dyes have been illegally used as food additives in products such as chilli spices and palm oil to enhance their red colour. From 2003 to 2005, the European Union made a series of decisions requiring chilli spices and palm oil imported to the European Union to contain analytical reports declaring them free of Sudan I-IV. In order for the USFDA to investigate the adulteration of palm oil and chilli spices with unapproved colour additives in the United States, a method was developed for the extraction and analysis of Sudan dyes in palm oil, and previous methods were validated for Sudan dyes in chilli spices. Both LC-DAD and LC-MS/MS methods were examined for their limitations and effectiveness in identifying adulterated samples. Method validation was performed for both chilli spices and palm oil by spiking samples known to be free of Sudan dyes at concentrations close to the limit of detection. Reproducibility, matrix effects, and selectivity of the method were also investigated. Additionally, for the first time a survey of palm oil and chilli spices was performed in the United States, specifically in the Washington, DC, area. Illegal dyes, primarily Sudan IV, were detected in palm oil at concentrations from 150 to 24 000 ng ml(-1). Low concentrations (< 21 µg kg(-1)) of Sudan dyes were found in 11 out of 57 spices and are most likely a result of cross-contamination during preparation and storage and not intentional adulteration.

Racial segregation in postbellum Southern cities: The case of Washington, D.C.

PubMed Central

Logan, John R.

2018-01-01

BACKGROUND Segregation in Southern cities has been described as a 20th-century development, layered onto an earlier pattern in which whites and blacks (both slaves and free black people) shared the same neighborhoods. Urban historians have pointed out ways in which the Southern postbellum pattern was less benign, but studies relying on census data aggregated by administrative areas – and segregation measures based on this data – have not confirmed their observations. METHODS This study is based mainly on 100% microdata from the 1880 census that has been mapped at the address level in Washington, D.C. This data makes it possible to examine in detail the unique spatial configuration of segregation that is found in this city, especially the pattern of housing in alleys. RESULTS While segregation appears to have been low, as reflected in data by wards and even by much smaller enumeration districts, analyses at a finer spatial scale reveal strongly patterned separation between blacks and whites at this early time. CONTRIBUTION This research provides much new information about segregation in a major Southern city at the end of the 19th century. It also demonstrates the importance of dealing explicitly with issues of both scale and spatial pattern in studies of segregation. PMID:29375269

Spatial and temporal structure of typhoid outbreaks in Washington, D.C., 1906–1909: evaluating local clustering with the Gi* statistic

PubMed Central

Hinman, Sarah E; Blackburn, Jason K; Curtis, Andrew

2006-01-01

Background To better understand the distribution of typhoid outbreaks in Washington, D.C., the U.S. Public Health Service (PHS) conducted four investigations of typhoid fever. These studies included maps of cases reported between 1 May – 31 October 1906 – 1909. These data were entered into a GIS database and analyzed using Ripley's K-function followed by the Gi* statistic in yearly intervals to evaluate spatial clustering, the scale of clustering, and the temporal stability of these clusters. Results The Ripley's K-function indicated no global spatial autocorrelation. The Gi* statistic indicated clustering of typhoid at multiple scales across the four year time period, refuting the conclusions drawn in all four PHS reports concerning the distribution of cases. While the PHS reports suggested an even distribution of the disease, this study quantified both areas of localized disease clustering, as well as mobile larger regions of clustering. Thus, indicating both highly localized and periodic generalized sources of infection within the city. Conclusion The methodology applied in this study was useful for evaluating the spatial distribution and annual-level temporal patterns of typhoid outbreaks in Washington, D.C. from 1906 to 1909. While advanced spatial analyses of historical data sets must be interpreted with caution, this study does suggest that there is utility in these types of analyses and that they provide new insights into the urban patterns of typhoid outbreaks during the early part of the twentieth century. PMID:16566830

A Multi-Disciplinary Approach to a School-Centered Rehabilitation Program for Pregnant School-Age Girls in Washington, D.C.

ERIC Educational Resources Information Center

Goodman, Elizabeth M.; Gill, Fobola M. L.

In 1963, the Washington, D.C. Public School Department began a special demonstration project on the secondary school level, the Webster Girls School Program, to reduce the number of dropouts due to pregnancy and recidivism. An interagency, multidisciplinary plan was devised to provide comprehensive services to the girls. Social case work, academic…

Intra-genotypic Diversity of Archival G4P[8] Human Rotaviruses from Washington, DC

PubMed Central

McDonald, Sarah M.; Davis, Kristin; McAllen, John K.; Spiro, David J.; Patton, John T.

2011-01-01

Group A human rotaviruses (RVs) remain the most frequently detected viral agents associated with acute gastroenteritis in infants and young children. Despite their medical importance, relatively few complete genome sequences have been determined for commonly circulating G/P-type strains (i.e., G1P[8], G2P[4], G3P[8], G4P[8], and G9P[8]). In the current study, we sequenced the genomes of 11 G4P[8] isolates from stool specimens that were collected in Washington, DC during the years of 1974-1991. We found that the VP7-VP4-VP6-VP1-VP2-VP3-NSP1-NSP2-NSP3-NSP4-NSP5/6-encoding genes of all 11 G4P[8] RVs have the genotypes of G4-P[8]-I1-R1-C1-M1-A1-N1-T1-E1-H1. By constructing phylogenetic trees for each gene, extensive intra-genotypic diversity was revealed among the G4P[8] RVs, and new sub-genotype gene alleles were identified. Several of these alleles are nearly identical to those of G3P[8] isolates previously sequenced from this same Washington, DC collection, strongly suggesting that the RVs underwent gene reassortment. On the other hand, we observed that some G4P[8] RVs exhibit completely different allele-based genome constellations, despite being collected during the same epidemic season; there was no evidence of gene reassortment between these strains. This observation extends our previous findings and supports the notion that stable, genetically-distinct clades of human RVs with the same G/P-type can co-circulate in a community. Interestingly, the sub-genotype gene alleles found in some of the DC RVs share a close evolutionary relationship with genes of more contemporary human strains. Thus, archival human RVs sequenced in this study might represent evolutionary precursors to modern-day strains. PMID:21712102

THE ROLE OF REMOTE SENSING AND GIS IN IDENTIFYING BURIED WORLD WAR I MUNITIONS AT THE AMERICAN UNIVERSITY, WASHINGTON, DC

EPA Science Inventory

During World War 1, The American University in Washington D.C. was used by the U.S. Army as an experiment station for the development and testing of a variety of battlefield munitions including chemical weapons such as Mustard Gas, Phosgene, Ricin and Lewisite, among others. Afte...

Biogeochemical snapshot of an urban water system: The Anacostia River, Washington DC

NASA Astrophysics Data System (ADS)

Macavoy, S.; Ewers, E.; Bushaw-Newton, K.

2007-12-01

Highly urbanized and contaminated with PAHs, heavy metals, and sewage, the Anacostia River flows through Maryland and Washington, DC into the tidal Potomac River. Efforts have been underway to assess the river's ecological integrity and to determine the extent of anthropogenic influences. This study examines the nutrients, bacterial biomarkers, organic material, and carbon, nitrogen and sulfur sources in the Anacostia. High biological oxygen demand and low nitrogen (0.33-0.56 mg /L)/phosphorus (0.014 - 0.021 mg/L) concentrations were observed in three areas of the river. Bacterial activity based on carbon source utilization was higher in sediment samples than in water column samples. While bacterial abundances were decreased in downstream areas of sediment; abundances increased in downstream areas in the water column. Downstream sites had higher nutrient concentrations and dissolved organic carbon (up to 13.7 mg/L). Odd-chain length and branched fatty acids (FAs) in the sediments indicated bacterial sources, but long chain FAs indicative of terrestrial primary production were also abundant in some sediments. Also dominant among methyl esters and ketones in some sediment and water column samples was methyl isobutyl ketone, a common industrial solvent and combustion by-product. Sediment carbon stable isotope analyses show a mix of autochthonous and allochthonous derived materials, but most carbon was derived from terrestrial sources (-23.3 to -31.7°). Sediment nitrogen stable isotopes ranged from -5.4 to. 5.6, showing nitrate uptake by plants and also recycling of nitrogen within the river. Sulfur sources were generally between 3 and -5, reflecting local sulfate sources and anaerobic sulfate reduction.

Job Satisfaction among Information Technology Professionals in the Washington DC Area: An Analysis Based on the Minnesota Satisfaction Questionnaire

ERIC Educational Resources Information Center

Diala, Ify S.

2010-01-01

Information technology (IT) has in the recent times dominated all aspect of the business world, and, for this reason, today's business environment is more challenging and more dynamic than in previous years. Therefore, this study focused on examining job satisfaction of Information Technology professionals in the D.C. area, paying particular…

Urban and Suburban Influences on Water Chemistry in Washington DC: Impervious Surfaces and Urban Stream Syndrome

NASA Astrophysics Data System (ADS)

MacAvoy, S. E.; Petersen, E.

2015-12-01

Among the challenges facing urban rivers are water stormwater runoff problems and changing water chemistry, not only from air and water pollution sources, but also from altered geology with the development of "urban karst". Seventy five percent of the Anacostia River in Washington, D.C. is urban or impervious. The Anacostia River experiences environmental challenges similar to those of other urban industrial rivers (heavy metal, PCB and PAH contamination). It also has Ca/Sr ratios above 200, and Na concentrations higher than Ca, and elevated ionic strength, all associated with extended chemical interaction with concrete. While these chemical characteristics have been documented in the urban areas within DC, they have not been examined in the largely suburban/mixed development tributaries of the Anacostia. Here we examine the base-flow geochemistry of the Anacostia River and its suburban tributaries (6 locations) over a year (November 2014- August 2015), concentrating on the following water chemistry variables: pH, hardness, SAR, alkalinity, Ca, Mg, Na, K, Fe, Mn, Zn, Al, Ba, Ni, total P, S, Sr, NO3-, NH4+, PO43-. NO3- and NH4+ were generally lowest in at all sites in January, but rose to between 0.5 and 2.4 mg/L in June, with highest NO3- concentrations in suburban areas. Na and Cl concentrations were 5x higher in suburban areas than urban areas during the winter months. Ca/Sr concentration ratios, were between 120 and 200 for suburban sites but increased as the sites became more urban (to a high of 240 for the most urban site). These trends have been observed in other urban streams, and correlate with percent impervious area. The data follow patterns expected for "urban stream syndrome" and dissolution of concrete. Suburban areas, with their relatively small streams, show greater winter salting effects than more urban areas down stream. Suburban areas also show higher NO3- (and occasionally higher NH4+) than urban areas except in winter. The data presented here

THE ROLE OF THE REMOTE SENSING IN IDENTIFYING BURIED WORLD WAR I MUNITIONS AT THE AMERICAN UNIVERSITY, WASHINGTON, D.C.

EPA Science Inventory

During World War 1, The American University in Washington D.C. was used by the U.S. Army as an experiment station for the development and testing of a variety of battlefield munitions including chemical weapons such as Mustard Gas, Phosgene, Ricin and Lewisite, among othe...

Correlation Between Surface Area and Dissolving Properties of Lead - A Step in the Investigation of Higher than Standard Lead Concentration in Drinking Water in Washington, D.C.

NASA Astrophysics Data System (ADS)

Hua, M.; Garduno, L.; Mondragon, J. D.; Cuff, K. E.

2004-12-01

Several recently published articles by the Washington Post exposing the alarming concentration of lead in drinking water from schools and homes in the Washington D.C. area sparked our interest in the correlation between lead-containing materials used in plumbing and rate of lead solubility. Elementary children who attend schools in various regions of the District were contacted by San Francisco Bay Area- based high school students who are participants in the NSF-sponsored Environmental Science Information Technology Activities (ESITA) project. After receiving a thorough explanation of required sampling procedures, the elementary school children sent 500 ml water samples from their homes and schools to Berkeley along with information on the locations from which the water samples were collected. These water samples were analyzed for lead content at the Environmental Science Research Program laboratory at Lawrence Hall of Science. The majority of the samples contained more than 15 ppb of lead, which is the EPA action level. We hypothesize that there are three possible sources of lead in the drinking water: 1) lead pipes in the water main; 2) lead pipes in the service main; and 3) lead soldering that was often previously used to connect piping. We chose to investigate the effect of lead-based solder on the overall lead concentration in water. Using a soldering iron, we melted lead solder to create discs ranging from one to five centimeter diameter and one to thirty-six grams of mass. These discs were then placed into a beaker with 500 ml of 7.1pH distilled water and allowed to stand for 48 hours. At the end of 48 hours, the water samples were prepared for analysis using the EPA approved lead-dithizone procedure. Results showed an exponential relationship between disc surface area and the concentration of dissolved lead measured in the sample. Therefore, lead-based solder can represent a possible major source of lead contamination.

Lithologic Coring in the Lower Anacostia Tidal Watershed, Washington, D.C., July 2002

USGS Publications Warehouse

Tenbus, Frederick J.

2003-01-01

Little is known about the volumetric flux of ground water to the lower tidal Anacostia River, or whether ground-water flow is an important component of the contaminant load in this part of the Anacostia River. The watershed is in the eastern part of Washington, D.C., and has been subjected to over 200 years of urbanization and modifications of the river channel and nearby land areas. These anthropogenic factors, along with tidal fluctuations in the river, make ground-water data collection and interpretations difficult. The U.S. Geological Survey is cooperating with the District of Columbia Department of Health, Environmental Health Administration, Bureau of Environmental Quality, Water Quality Division, in a study to assess nonpoint-source pollution from ground water into the lower tidal Anacostia River. Lithologic cores from drilling activities conducted during July 2002 in the study area have been interpreted in the context of geologic and hydrogeologic information from previous studies in the lower Anacostia tidal watershed. These interpretations can help achieve the overall project goals of characterizing ground-water flow and contaminant load in the study area. Hydrostratigraphic units encountered during drilling generally consisted of late Pleistocene to Holocene fluvial deposits overlying Cretaceous fluvial/deltaic deposits. Cores collected in Beaverdam Creek and the Anacostia River indicated high- and low-energy environments of deposition, respectively. Two cores collected near the river showed different types of anthropogenic fill underlain by low-energy deposits, which were in turn underlain by sand and gravel. A third core collected near the river consisted primarily of sand and gravel with no artificial fill.

Natural gas pipeline leaks across Washington, DC.

PubMed

Jackson, Robert B; Down, Adrian; Phillips, Nathan G; Ackley, Robert C; Cook, Charles W; Plata, Desiree L; Zhao, Kaiguang

2014-01-01

Pipeline safety in the United States has increased in recent decades, but incidents involving natural gas pipelines still cause an average of 17 fatalities and $133 M in property damage annually. Natural gas leaks are also the largest anthropogenic source of the greenhouse gas methane (CH4) in the U.S. To reduce pipeline leakage and increase consumer safety, we deployed a Picarro G2301 Cavity Ring-Down Spectrometer in a car, mapping 5893 natural gas leaks (2.5 to 88.6 ppm CH4) across 1500 road miles of Washington, DC. The δ(13)C-isotopic signatures of the methane (-38.2‰ ± 3.9‰ s.d.) and ethane (-36.5 ± 1.1 s.d.) and the CH4:C2H6 ratios (25.5 ± 8.9 s.d.) closely matched the pipeline gas (-39.0‰ and -36.2‰ for methane and ethane; 19.0 for CH4/C2H6). Emissions from four street leaks ranged from 9200 to 38,200 L CH4 day(-1) each, comparable to natural gas used by 1.7 to 7.0 homes, respectively. At 19 tested locations, 12 potentially explosive (Grade 1) methane concentrations of 50,000 to 500,000 ppm were detected in manholes. Financial incentives and targeted programs among companies, public utility commissions, and scientists to reduce leaks and replace old cast-iron pipes will improve consumer safety and air quality, save money, and lower greenhouse gas emissions.

Area of old-growth forests in California, Oregon, and Washington.

Treesearch

Charles L. Bolsinger; Karen L. Waddell

1993-01-01

Area of old-growth forests in California, Oregon, and Washington has declined significantly in the second half of the 20th century. This report summarizes available information on old-growth forest area by ownership in California, Oregon, and Washington. Old-growth definitions used by the various owners and agencies are provided.

108th Convention of the American Psychological Association. Washington, DC, August 4-8, 2000

PubMed

2000-04-01

Washington, DC--the nation's capital--celebrates a history rich in diversity and character. One of the most popular cities for sightseeing, Washington contains countless points of interest for its visitors. The world's largest museum complex, the Smithsonian Institution, invites you to explore exhibits that highlight the scientific, cultural, political, and technological developments of the United States and its people. Visit the home to original pieces of the American heritage, such as the Declaration of Independence, the Constitution, and the Bill of Rights, that have helped to shape the way we live today. The art lovers among you will delight in the seven major art galleries. See the modern art and sculpture of the Hirshhorn Museum and the newly opened Sculpture Garden; the Sackler Gallery's collection of Asian art; and the only museum devoted to the art and culture of Africa, the National Museum of African Art. In Washington, there is music in the air, from the Kennedy Center's many stages and the clubs of Georgetown and Adams Morgan to the military bands that give concerts on the Mall. Whatever your culinary desire, be it authentic Texas chili or the finest Asian cuisine, you'll find it at one of the city's internationally famous eateries. What a perfect place for APA to convene its first annual convention of the new millennium!

36 CFR 1280.80 - How do I request to use NARA public areas in the National Archives Building?

Code of Federal Regulations, 2010 CFR

2010-07-01

... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false How do I request to use NARA public areas in the National Archives Building? 1280.80 Section 1280.80 Parks, Forests, and Public... Apply to Use NARA Public Areas in the Washington, DC, Area? National Archives Building, Washington, Dc...

36 CFR 1280.80 - How do I request to use NARA public areas in the National Archives Building?

Code of Federal Regulations, 2011 CFR

2011-07-01

... 36 Parks, Forests, and Public Property 3 2011-07-01 2011-07-01 false How do I request to use NARA public areas in the National Archives Building? 1280.80 Section 1280.80 Parks, Forests, and Public... Apply to Use NARA Public Areas in the Washington, DC, Area? National Archives Building, Washington, Dc...

Demonstration of LED Retrofit Lamps at the Smithsonian American Art Museum, Washington, DC

DOE Office of Scientific and Technical Information (OSTI.GOV)

Miller, Naomi J.; Rosenfeld, Scott M.

This report documents observations and results obtained from a lighting demonstration project conducted under the U.S. Department of Energy GATEWAY Solid-State Lighting (SSL) Technology Demonstration Program at the Smithsonain American Art Museum in Washington, DC. LED Lamp samples were tested in the museum workshop, temporarily installed in a gallery for feedback, and ultimately replaced all traditional incandescent lamps in one gallery of modernist art at the American Art Museum and partially replacing lamps in two galleries at the Musesum's Renwick Gallery. This report describes the selection and testing process, technology challenges, perceptions, economics, energy use, and mixed results of usignmore » LED replacement lamps in art galleries housing national treasures.« less

Adult Continuing Educational Opportunities: A Catalog for Government Employees in the Washington Metropolitan Area.

ERIC Educational Resources Information Center

Civil Service Commission, Washington, DC. Training Assistance Div.

This catalog is designed to provide Government agencies in Washington, D.C., with information on local educational and training resources. Its purpose is to aid personnel officers and training directors in planning educational programs for lower-level Federal employees that will lead to greater job efficiency and further advancement. Sections I…

THE ROLE OF HISTORICAL AERIAL PHOTOGRAPHS IN THE REMEDIATION OF WWI CHEMICAL CONTAMINATION IN THE SPRING VALLEY SUPERFUND SITE, WASHINGTON, DC

EPA Science Inventory

During World War 1, The American University in Washington D.C. was used by the U.S. Army as an experiment station for the development and testing of a variety of battlefield munitions including chemical weapons such as Mustard Gas, Phosgene, Ricin and Lewisite, among others. Afte...

ALPINE LAKES WILDERNESS STUDY AREA, WASHINGTON.

USGS Publications Warehouse

Gualtieri, J.L.; Thurber, H.K.

1984-01-01

The Alpine Lakes Wilderness study area, located in the central part of the Cascade Mountains of Washington was examined for its mineral-resource potential. On the basis of that study the area was found to contain deposits of copper, other base metals, and gold and silver. Probable or substantiated mineral-resource potential exists for these commodities in the southwest-central, northwest, and southeast-central parts of the area. The geologic terrane precludes the occurrence of fossil fuel resources.

Organic Compounds in Potomac River Water Used for Public Supply near Washington, D.C., 2003-05

USGS Publications Warehouse

Brayton, Michael J.; Denver, Judith M.; Delzer, Gregory C.; Hamilton, Pixie A.

2008-01-01

Organic compounds studied in this U.S. Geological Survey (USGS) assessment generally are man-made, including, in part, pesticides, solvents, gasoline hydrocarbons, personal care and domestic-use products, and refrigerants and propellants. A total of 85 of 277 compounds were detected at least once among the 25 samples collected approximately monthly during 2003-05 at the intake of the Washington Aqueduct, one of several community water systems on the Potomac River upstream from Washington, D.C. The diversity of compounds detected indicate a variety of different sources and uses (including wastewater discharge, industrial, agricultural, domestic, and others) and different pathways (including treated wastewater outfalls located upstream, overland runoff, and ground-water discharge) to drinking-water supplies. Seven compounds were detected year-round in source-water intake samples, including selected herbicide compounds commonly used in the Potomac River Basin and in other agricultural areas across the United States. Two-thirds of the 26 compounds detected most commonly in source water (in at least 20 percent of the samples) also were detected most commonly in finished water (after treatment but prior to distribution). Concentrations for all detected compounds in source and finished water generally were less than 0.1 microgram per liter and always less than human-health benchmarks, which are available for about one-half of the detected compounds. On the basis of this screening-level assessment, adverse effects to human health are expected to be negligible (subject to limitations of available human-health benchmarks).

Organochlorine chemical residues in Northern Cardinal (Cardinalis cardinalis) eggs from Greater Washington, DC USA

USGS Publications Warehouse

Schmitt, Christopher J.; Echols, Kathy R.; Peterman, Paul; Orazio, Carl; Grimm, Christiana; Tan, Shirlee; Diggs, Nora E.; Marra, Peter P.

2018-01-01

Northern Cardinal eggs from six neighborhoods near Washington DC were analyzed for organochlorine pesticides and PCBs. All compounds were detected more frequently and at higher concentrations in more heavily urbanized neighborhoods. DDT (mostly as p,pʹ-DDE) was detected in all neighborhoods. p,pʹ-DDT was typically 0.5‒16 ng/g (ww) in most suburban neighborhoods but was not detected (< 0.1 ng/g) in more rural areas; however, p,pʹ-DDT was 127‒1130 ng/g in eggs from two suburban Maryland nests and comprised 65.7% of total p,pʹ-DDT isomers in the most contaminated sample, indicating recent exposure to un-weathered DDT. Total chlordane (sum of 5 compounds) was 2‒70 ng/g; concentrations were greatest in older suburban neighborhoods. Total PCB (sum of detected congeners) was < 5‒21 ng/g. Congener patterns were similar in all neighborhoods and resembled those typical of weathered mixtures. Results indicate that wildlife remains exposed to low concentrations of legacy contaminants in suburban neighborhoods and that cardinal eggs can be used to monitor localized contamination.

11. Photocopy of photograph by Commission of Fine Arts, Washington, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

11. Photocopy of photograph by Commission of Fine Arts, Washington, DC. Date and photographer unknown. CLOSE UP OF ARMILLARY SPHERE - Meridian Hill Park, Bounded by Fifteenth, Sixteenth, Euclid & W Streets, Northwest, Washington, District of Columbia, DC

75 FR 38017 - Airworthiness Directives; McDonnell Douglas Corporation Model DC-9-10 Series Airplanes, DC-9-30...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-07-01

... Airworthiness Directives; McDonnell Douglas Corporation Model DC- 9-10 Series Airplanes, DC-9-30 Series Airplanes, DC-9-81 (MD-81) Airplanes, DC-9-82 (MD-82) Airplanes, DC-9-83 (MD-83) Airplanes, DC-9- 87 (MD-87... Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and...

Summary of Ground-Water-Quality Data in the Anacostia River Watershed, Washington, D.C., September - December 2005

USGS Publications Warehouse

Klohe, Cheryl A.; Debrewer, Linda M.

2007-01-01

The U.S. Geological Survey, in cooperation with the District Department of the Environment (formerly the District of Columbia, Department of Health, Environmental Health Administration), conducted a ground-water-quality investigation in the Anacostia River watershed within Washington, D.C. Samples were collected and analyzed from 17 ground-water monitoring wells located within the study area from September through December 2005. Samples were analyzed for a variety of constituents including major ions, nutrients, volatile organic compounds, semivolatile organic compounds, pesticides and degradates, oil and grease, phenols, total polychlorinated biphenyls, and other selected constituents. The concentrations of major ions in the study area indicate that the ground water is predominantly calcium-bicarbonate type water, with some wells containing a higher percentage of milliequivalents per liter of iron (cation), and chloride or sulfate (anions). Concentrations of nitrogen were generally less than 1 milligram per liter, and concentrations of phosphorus were generally less than 0.5 milligrams per liter. Twelve of 79 pesticides and degradates were detected at 6 out of 17 wells. Volatile organic compounds (predominantly gasoline oxygenates and solvents) were detected in 9 of the 17 wells. Two semivolatile organic compounds, (bis(2-ethylhexyl) phthalate and total phenols), out of the 51 analyzed, were detected in the study area.

10. Photocopy of photograph by Commission of Fine Arts, Washington, ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

10. Photocopy of photograph by Commission of Fine Arts, Washington, DC. Date and photographer unknown. LOWER TERRACE POOL, CASCADE, LOOKING SOUTHWEST, SHOWS EXEDRA WITH ARMILLARY SPHERE - Meridian Hill Park, Bounded by Fifteenth, Sixteenth, Euclid & W Streets, Northwest, Washington, District of Columbia, DC

Studying emissions of CO2 in the Baltimore/Washington area using airborne measurements: source attribution, flux quantification, and model comparison

NASA Astrophysics Data System (ADS)

Ahn, D.; Hansford, J. R.; Salawitch, R. J.; Ren, X.; Cohen, M.; Karion, A.; Whetstone, J. R.; Salmon, O. E.; Shepson, P. B.; Gurney, K. R.; Osterman, G. B.; Dickerson, R. R.

2017-12-01

We study emissions of CO2 in the Baltimore-Washington area using airborne in-situ measurements, obtained during the February 2015 Fluxes of Greenhouse Gases in Maryland (FLAGG-MD) campaign. In this study, we attributed enhanced signals of CO2 to several power plants and two urban areas (Baltimore City and Washington, DC), using the NOAA HYSPLIT air parcel trajectory model as well as the analysis of chemical ratios to quantify the source/receptor relationship. Then, the fluxes of attributed CO2 are estimated using a mass balance approach. The uncertainty in the aircraft-based mass balance approach is estimated by conducting a detailed sensitivity analysis of CO2 fluxes, considering factors such as the background mixing ratio of CO2, wind direction and speed, PBL heights, the horizontal boundary, and vertical interpolation methods. Estimated fluxes of CO2 with estimated uncertainty ranges are then compared to output from various emissions data and models, such as CEMS, CarbonTracker, FFDAS, and ODIAC. Finally, column CO2 data over the Baltimore-Washington region observed by the OCO-2 satellite instrument are statistically compared to aircraft in-situ observations, to assess how well OCO-2 is able to quantify geographic and synoptic-scale variability.

Parental perceived built environment measures and active play in Washington DC metropolitan children.

PubMed

Roberts, Jennifer D; Knight, Brandon; Ray, Rashawn; Saelens, Brian E

2016-06-01

Previous research identified associations between perceived built environment and adult physical activity; however, fewer studies have explored associations in children. The Built Environment and Active Play (BEAP) Study examined relationships between children's active play and parental perceptions of home neighborhood built environments within the Washington, DC metropolitan area (DMV). With this cross-sectional study, a questionnaire was administered in 2014 to parents of children (7-12 years old) residing in the DMV. Data were collected on children's active play, home built environment parental perceptions, and demographics. Active play response data were dichotomized by whether the child did or did not meet the 60-min/day Physical Activity Guidelines for Americans (PAGAs) recommendation. Perceived home neighborhood built environment data were also dichotomized. Chi-square tests determined differences in parental perceived built environment measures between active and non-active child groups. Logistic regression assessed the association of parental perceived built environment variables with active play while adjusting for demographic variables. The BEAP Study population (n = 144) included a uniquely diverse population of children with 23.7% African Americans and 10.4% Asian Americans. A statistically significant greater proportion of active children's parents agreed with the importance of neighborhood esthetics, active play areas, walkability and safety as compared to the parents of non-active children. Fully adjusted logistic regression models demonstrated that some parental perceived built environment measures (e.g. access to play equipment) were predictors of their children meeting the 60-min/day PAGA recommendation. Our findings support the important role of home neighborhood built environment perceptions on childhood active play.

Proceedings of the Office of Special Education Programs' Annual Technical Assistance and Dissemination Meeting (6th, Washington, DC, January 16-18, 1996).

ERIC Educational Resources Information Center

Special Education Programs (ED/OSERS), Washington, DC.

This document presents the proceedings for the Office of Special Education Programs' 6th Annual Technical Assistance and Dissemination Meeting held on January 16-18, 1996, in Washington, DC. Conference discussions centered around changing expectations for local and state education agencies and technical assistance and dissemination (TA&D)…

Patterns of HIV/AIDS, STI, Substance Abuse and Hepatitis Risk among Selected Samples of Latino and African-American Youth in Washington, DC

ERIC Educational Resources Information Center

Edberg, Mark C.; Collins, Elizabeth; Harris, Meredith; McLendon, Hedda; Santucci, Patricia

2009-01-01

In order to address evolving risk factors among youth in Washington, DC (District of Columbia), with respect to HIV/AIDS, sexually transmitted infections (STIs), substance abuse, and hepatitis, a targeted, community-needs assessment was conducted through a partnership between the Department of Prevention and Community Health at George Washington…

THER ROLE OF REMOTE SENSING AND GIS IN IDENTIFYING AND REMOVING BURIED WORLD WAR I MUNITIONS AT THE AMERICAN UNIVERSITY, WASHINGTON, DC

EPA Science Inventory

During World War I, The American University in Washington D.C. was used by the U.S. Am1y as an experiment station for the development and testing of a variety of battlefield munitions including chemical weapons such as Mustard Gas, Phosgene, Ricin and Lewisite, among others. Afte...

A Study of the System Safety Concept as it Relates to the New Walter Reed Army Medical Center, Washington, DC.

DTIC Science & Technology

1978-03-31

established the safety level of the% * originally designed facility and the extent of current safety * modifications. The objectives evaluated the...Program could identify many safety hazards thus leading to design improvements. The study provided several recommendations to formalize the Systems Safety... design , construction, and proposed systems management of the new Walter Reed Army Medical Center (WRAMC), Washington, D.C., was conducted during the

75 FR 6162 - Airworthiness Directives; McDonnell Douglas Corporation Model DC-9-81 (MD-81), DC-9-82 (MD-82...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-02-08

... Corporation Model DC- 9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), and MD-88 Airplanes... Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), and MD-88 airplanes. This...., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service...

The impact of water vapor assimilation on quantitative precipitation forecast over the Washington, DC metropolitan area

NASA Astrophysics Data System (ADS)

Walford, Segayle Cereta

Forecasting subtle, small-scale convective cases in both winter and summer time is an ongoing challenge in weather forecasting. Recent studies have shown that better structure of moisture within the boundary layer is crucial for improving forecasting skills, particularly quantitative precipitation forecasting (QPF). Lidars, which take high temporal observations of moisture, are able to capture very detailed structures, especially within the boundary layer where convection often begins. This study first investigates the extent to which an aerosol and a water vapor lidar are able to capture key boundary layer processes necessary for the development of convection. The results of this preliminary study show that the water vapor lidar is best able to capture the small scale water vapor variability that is necessary for the development of convection. These results are then used to investigate impacts of assimilating moisture from the Howard University Raman Lidar (HURL) for one mesoscale convective case, July 27-28, 2006. The data for this case is from the Water Vapor Validation Experiment-Satellite and Sondes (WAVES) field campaign located at the Howard University Beltsville Site (HUBS) in Beltsville, MD. Specifically, lidar-based water vapor mixing ratio profiles are assimilated into the Weather Research and Forecasting (WRF) regional model over a 4 km grid resolution over Washington, DC. Model verification is conducted using the Meteorological Evaluation Tool (MET) and the results from the lidar run are then compared to a control (no assimilation) run. The findings indicate that quantitatively conclusions cannot be draw from this one case study. However, qualitatively, the assimilation of the lidar observations improved the equivalent potential temperature, and water vapor distribution of the region. This difference changed location, strength and spatial coverage of the convective system over the HUBS region.

The Role of Technology in America's Schools. Hearing before the Subcommittee on Early Childhood, Youth and Families of the Committee on Education and the Workforce. House of Representatives, One Hundred Sixth Congress, Second Session (Washington, DC, March 8, 2000).

ERIC Educational Resources Information Center

Congress of the U.S., Washington, DC. House Committee on Education and the Workforce.

The Subcommittee on Early Childhood, Youth and Families, Committee on Education and the Workforce, Washington, DC met in Washington, DC on March 8, 2000 to hear testimony on the role of technology in America's schools. Chairman of the Subcommittee Michael Castle presided. Contents include the opening statements of Chairman Michael Castle and of…

U.S. Department of Energy Hydrogen and Fuel Cells Program 2014 Annual Merit Review and Peer Evaluation Report: June 16-20, 2014, Washington, D.C.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

2014-10-01

The fiscal year (FY) 2014 U.S. Department of Energy (DOE) Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Meeting (AMR), in conjunction with DOE's Vehicle Technologies Office AMR, was held from June 16-20, 2014, at the Washington Marriott Wardman Park in Washington, D.C. This report is a summary of comments by AMR peer reviewers about the hydrogen and fuel cell projects funded by DOE's Office of Energy Efficiency and Renewable Energy (EERE).

An assessment of local risk. [to area associated with commercial operations of aircraft with graphite fiber composite structures

NASA Technical Reports Server (NTRS)

Pocinki, L. S.

1979-01-01

A status report is presented on the assessment of the risk at Washington National Airport and the surrounding Washington, D.C. area associated with commercial operations of aircraft with graphite fiber composite in their structures. The presentation is outlined as follows: (1) overall strategy; (2) need for individual airport results; (3) airport-metro area model - submodels, method, assumptions and data; and (4) preliminary results for National Airport - D.C. area.

VSP - Discussion: The Common Interest on Planning Hulls and Plan for Collaboration Studies between NSWC and KRISO - Washington DC

DTIC Science & Technology

2016-03-07

planning hulls and plan for N62909-15-1-2052 collaboration studies between NSWC and KRISO - Washington DC Sb. GRANT NUMBER N62909-15-1-2052 Sc. PROGRAM...be carried out in MASK’s facilities. We discussed common interests on planing hulls , and made plans for collaboration studies between NSWC and KRISO... hull forms for satisfying the requirements of the project. Model tests and analyses are required to assess the maneuvering and seakeeping performance

DC Voltage Interface Standards for Naval Applications

DTIC Science & Technology

2015-06-24

norbert.doerry@navy.mil Dr. John Amy Naval Sea Systems Command United States Navy Washington DC , USA john.amy@navy.mil Abstract—. MIL-STD-1399...standards have been established for DC interfaces on U.S. naval surface ships. This paper provides recommendations for specific standard DC

Electronic media time and sedentary behaviors in children: Findings from the Built Environment and Active Play Study in the Washington DC area.

PubMed

Roberts, Jennifer D; Rodkey, Lindsey; Ray, Rashawn; Knight, Brandon; Saelens, Brian E

2017-06-01

An objective of the Built Environment and Active Play (BEAP) Study was to examine whether home built environment, bedroom electronic presence, parental rules and demographics predicted children's sedentary behavior (SB). In 2014, BEAP Study questionnaires were mailed to 2000 parents of children (7-12 years) within the Washington DC area. SB-Duration (hours/day) and SB-Frequency (days/week) were assessed by two questions with multiple subparts relating to SB activity type (e.g. car riding) and SB companionship (e.g. friends). Built environment, bedroom electronic presence, parental rules and demographic data were obtained through questionnaire items and ordered logistic regression models were used to examine whether these variables were associated with SB. Study sample included 144 children (female (50%); average age (9.7 years); White (56.3%); Black/African-American (23.7%); Asian-Americans (10.4%)). Nearly 40% of the sample reported daily solitary SB with car riding being the most frequently reported type of SB. Children living on streets without a dead-end/cul-de-sac exhibited a higher odds in SB-Duration using electric media [2.61 (CI: 1.31, 5.18)] and having no television in a child's bedroom was associated with a lower odds in SB-Frequency [0.048 (CI: 0.006, 0.393)] and SB-Duration [0.085 (CI: 0.018, 0.395)]. Non-Hispanic/Latino children were also found to have higher odds in solitary SB-Frequency when parental rules of electronic use were modeled [8.56 (CI: 1.11, 66.01)]. Based on results from this cross-sectional study, home neighborhood built environment, bedroom electronic presence and absence of parental rules can significantly predict children's SB.

J C Nalle Elementary School, Washington, D.C. Schools on the Move: Stories of Urban Schools Engaged in Inclusive Journeys of Change.

ERIC Educational Resources Information Center

Ferguson, Phil; Blumberg, Richard

This paper describes one urban school in the midst of change and renewal. J C Nalle Elementary School, Washington, DC, is a full-service community school that supports children and families. It is one of 85 schools with which the National Institute for Urban School Improvement is involved in partnerships for change. It is located in an…

Timber resource statistics for the Puget Sound area, Washington.

Treesearch

Patricia M. Bassett; Daniel D. Oswald

1982-01-01

This report summarizes a 1979 timber resource inventory of eight counties in the Puget Sound area of Washington: Island, King, Kitsap, Pierce, San Juan, Skagit, Snohomish, and Whatcom. Detailed tables of forest area, timber volume, growth, mortality, and harvest are presented.

Metropolitan Washington Area Water Supply Study. Appendix G. Non-Structural Studies.

DTIC Science & Technology

1983-09-01

should minimize any impacts to the surrounding areas. The effects of land application systems on the socio -economic aspects of a community include... conflict this outfall might create with respect to the Washington Aqueduct Emergency Estuary Pumping Station. The operation of this intake, designed for...PB 214 970). " Socio -Economic Impact Study of Alternative Water Supply Systems," Annex D, Volume II, Washington Metropolitan Area Water Supply Study

Amplification of earthquake ground motions in Washington, DC, and implications for hazard assessments in central and eastern North America

USGS Publications Warehouse

Pratt, Thomas L.; Horton, J. Wright; Munoz, Jessica; Hough, Susan E.; Chapman, Martin C.; Olgun, C. Guney

2017-01-01

The extent of damage in Washington, DC, from the 2011 Mw 5.8 Mineral, VA, earthquake was surprising for an epicenter 130 km away; U.S. Geological Survey “Did-You-Feel-It” reports suggest that Atlantic Coastal Plain and other unconsolidated sediments amplified ground motions in the city. We measure this amplification relative to bedrock sites using earthquake signals recorded on a temporary seismometer array. The spectral ratios show strong amplification in the 0.7 to 4 Hz frequency range for sites on sediments. This range overlaps with resonant frequencies of buildings in the city as inferred from their heights, suggesting amplification at frequencies to which many buildings are vulnerable to damage. Our results emphasize that local amplification can raise moderate ground motions to damaging levels in stable continental regions, where low attenuation extends shaking levels over wide areas and unconsolidated deposits on crystalline metamorphic or igneous bedrock can result in strong contrasts in near-surface material properties.

A prospective longitudinal study of seasonality in African students living in the greater Washington, D.C. metropolitan area.

PubMed

Guzman, Alvaro; Zebrak, Ryszard; Rohan, Kelly J; Sumar, Irshad A; Savchenko, Svetlana; Stiller, John W; Valadez-Meltzer, Adela; Olsen, Cara; Lapidus, Manana; Soriano, Joseph J; Postolache, Teodor T

2007-05-01

We conducted a prospective, longitudinal study of seasonality in a vulnerable population, i.e., African students who migrated to a temperate climate. Consistent with previous cross-sectional studies, we hypothesized lower mood and energy, and higher appetite and weight, in fall/winter than in spring/summer. Four cohorts of African students attending a year-long nursing school program without vacation in Washington, D.C., were assessed monthly for 1 year. Forty-three subjects (mean age = 33.46 +/- 6.25), consisting of predominantly females (76.7%), completed the study. The cohorts began their academic program in different seasons (one each in winter, spring, summer, and fall), inherently minimizing confounding influences on seasonality, such as academic and immigration stress, as well as allowing adjustment for an order effect. At each assessment, students completed three 100-mm visual analog scales for mood, energy, and appetite, and were weighed on a digital scale. For each standardized dependent variable, a repeated measure ANOVA was used and, if a significant effect of month was identified, averages for spring/summer and fall/winter were compared using paired t-tests. In addition, a mixed model for repeated measures was applied to raw (nonstandardized) data. Body weight was significantly higher in fall/winter than in spring/summer (p < 0.01). No seasonal differences in mood, energy, or appetite were found. Benefiting from certain unique features of our cohorts allowing adjustment for order effects, this is the first study to identify a seasonal variation in body weight with a peak in winter using longitudinal monthly measurements.

A Cluster Analytic Examination of Acculturation and Health Status among Asian Americans in the Washington DC Metropolitan Area, United States

PubMed Central

Lee, Sunmin; Chen, Lu; He, Xin; Miller, Matthew J.; Juon, Hee-Soon

2013-01-01

Previous studies reported mixed findings on the relationship between acculturation and health status among Asian Americans due to different types of acculturation measures used or different Asian subgroups involved in various studies. We aim to fill the gap by applying multiple measures of acculturation in a diverse sample of Asian subgroups. A cross sectional study was conducted among Chinese, Korean and Vietnamese Americans in Washington D.C. Metropolitan Area to examine the association between health status and acculturation using multiple measures including the Suinn-Lew Asian Self-Identity Acculturation (SL-ASIA) scale, clusters based on responses to SL-ASIA, language preference, length of stay, age at arrival in the United Sates and self-identity. Three clusters (Asian (31%); Bicultural (47%); and American (22%)) were created by using a two-step hierarchical method and Bayesian Information Criterion values. Across all the measures, more acculturated individuals were significantly more likely to report good health than those who were less acculturated after adjusting for covariates. Specifically, those in the American cluster were 3.8 times (95% Confidence Interval (CI): 2.2, 6.6) more likely and those in the Bicultural cluster were 1.7 times more likely (95% CI: 1.1, 2.4) to report good health as compared to those in the Asian cluster. When the conventional standardized SL-ASIA summary score (range: −1.4 to 1.4) was used, a one point increase was associated with 2.2 times greater odds of reporting good health (95% CI: 1.5, 3.2). However, the interpretation may be challenging due to uncertainty surrounding the meaning of a one point increase in SL-ASIA summary score. Among all the measures used, acculturation clusters better approximated the acculturation process and provided us with a more accurate test of the association in the population. Variables included in this measure were more relevant for our study sample and may have worked together to capture the

Mental Retardation 1970: Selected Papers from the 94th Annual Meeting of the American Association on Mental Deficiency (Washington, D.C., May, 1970).

ERIC Educational Resources Information Center

Gardner, James M., Ed.

Papers dealing with behavior modification, presented at the annual meeting of the American Association on Mental Deficiency (94th, Washington, D.C., May, 1970), are given in a two volume series. Volume 1 deals with the theoretical papers on behavior modification. Burton Blatt urges much needed reform in the mental institutions of today; ground…

How Community Efforts To Reduce Substance Abuse Have Affected Health Care. Lessons Learned Conferences Seminar Report (Washington, D.C., April 14-15, 1997).

ERIC Educational Resources Information Center

Johnson, Michelle; Smith, Steven Rathgeb

A conference in Washington, D.C., brought together health care professionals and people working on substance abuse issues to take a look at what four communities have done to use the health care system as part of a strategy to address substance abuse. The four communities are Vallejo (California), Santa Barbara (California), Little Rock…

One year of tracer dispersion measurements over Washington, D.C.

NASA Astrophysics Data System (ADS)

Draxler, Roland R.

Two perfluorocarbon tracers were released for 6 h from several locations about 20 km outside of Washington, D.C. at 36-h intervals for over 1 year. Continuous air samples were collected at 8-h intervals at one urban and two suburban sites, and at monthly intervals at 93 sites all over the region. Over 50 % of the 8-h samples showed no tracer concentration. However, about 20% of the samples had significant amounts of tracer, so that about 600 values under a variety of meteorological conditions are available for analysis. Although the Potomac River is only 100 m below the surrounding terrain, the tracer releases from within the river valley indicated that the tracer flow was channeled along the river valley. For tracer released away from the river valley, the tracer tended to pass aloft and not mix down into the river valley. Sequential concentration measurements frequently showed high values for extended periods after the tracer release terminated, decreasing exponentially with a half life of about 3 h. This suggests that the finite tracer plume may have a rather long upwind trailing edge toward the release point. The average rate of change in the vertical dispersion during summer and winter was found to be proportional to the 0.6 power of distance.

Adherence to Antimicrobial Inhalational Anthrax Prophylaxis among Postal Workers, Washington, D.C., 2001

PubMed Central

Laserson, Kayla; Fry, Alicia M.; Roy, Sharon; Hayslett, James; Grummer-Strawn, Laurence; Kettel-Khan, Laura; Schuchat, Anne

2002-01-01

In October 2001, two envelopes containing Bacillus anthracis spores were processed at the Washington, D.C., Processing and Distribution Center of the U.S. Postal Service; inhalational anthrax developed in four workers at this facility. More than 2,000 workers were advised to complete 60 days of postexposure prophylaxis to prevent inhalational anthrax. Interventions to promote adherence were carried out to support workers, and qualitative information was collected to evaluate our interventions. A quantitative survey was administered to a convenience sample of workers to assess factors influencing adherence. No anthrax infections developed in any workers involved in the interventions or interviews. Of 245 workers, 98 (40%) reported full adherence to prophylaxis, and 45 (18%) had completely discontinued it. Experiencing adverse effects to prophylaxis, anxiety, and being <45 years old were risk factors for discontinuing prophylaxis. Interventions, especially frequent visits by public health staff, proved effective in supporting adherence. PMID:12396929

Early Childhood Summit (Washington, D.C., June 23, 2000). Remarks as Prepared for Delivery by U.S. Secretary of Education Richard W. Riley.

ERIC Educational Resources Information Center

Riley, Richard W.

This paper comprises remarks of U.S. Secretary of Education Richard Riley at the Early Childhood Summit in Washington, D.C. on June 23, 2000. The paper notes the emergence of a national consensus about the value of early childhood education. The paper maintains that brain development research coupled with new research on how children learn to read…

33 CFR 334.1244 - Puget Sound, Manchester Fuel Depot, Manchester, Washington; naval restricted area.

Code of Federal Regulations, 2011 CFR

2011-07-01

... Depot, Manchester, Washington; naval restricted area. 334.1244 Section 334.1244 Navigation and Navigable... REGULATIONS § 334.1244 Puget Sound, Manchester Fuel Depot, Manchester, Washington; naval restricted area. (a... the military or naval authority shall enter the area without the permission of the enforcing agency or...

33 CFR 334.1244 - Puget Sound, Manchester Fuel Depot, Manchester, Washington; naval restricted area.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Depot, Manchester, Washington; naval restricted area. 334.1244 Section 334.1244 Navigation and Navigable... REGULATIONS § 334.1244 Puget Sound, Manchester Fuel Depot, Manchester, Washington; naval restricted area. (a... the military or naval authority shall enter the area without the permission of the enforcing agency or...

Prevalence of Campylobacter spp., Escherichia coli, and Salmonella serovars in retail chicken, turkey, pork, and beef from the Greater Washington, D.C., area.

PubMed

Zhao, C; Ge, B; De Villena, J; Sudler, R; Yeh, E; Zhao, S; White, D G; Wagner, D; Meng, J

2001-12-01

A total of 825 samples of retail raw meats (chicken, turkey, pork, and beef) were examined for the presence of Escherichia coli and Salmonella serovars, and 719 of these samples were also tested for Campylobacter spp. The samples were randomly obtained from 59 stores of four supermarket chains during 107 sampling visits in the Greater Washington, D.C., area from June 1999 to July 2000. The majority (70.7%) of chicken samples (n = 184) were contaminated with Campylobacter, and a large percentage of the stores visited (91%) had Campylobacter-contaminated chickens. Approximately 14% of the 172 turkey samples yielded Campylobacter, whereas fewer pork (1.7%) and beef (0.5%) samples were positive for this pathogen. A total of 722 Campylobacter isolates were obtained from 159 meat samples; 53.6% of these isolates were Campylobacter jejuni, 41.3% were Campylobacter coli, and 5.1% were other species. Of the 212 chicken samples, 82 (38.7%) yielded E. coli, while 19.0% of the beef samples, 16.3% of the pork samples, and 11.9% of the turkey samples were positive for E. coli. However, only 25 (3.0%) of the retail meat samples tested were positive for Salmonella. Significant differences in the bacterial contamination rates were observed for the four supermarket chains. This study revealed that retail raw meats are often contaminated with food-borne pathogens; however, there are marked differences in the prevalence of such pathogens in different meats. Raw retail meats are potential vehicles for transmitting food-borne diseases, and our findings stress the need for increased implementation of hazard analysis of critical control point (HACCP) and consumer food safety education efforts.

Prevalence of Campylobacter spp., Escherichia coli, and Salmonella Serovars in Retail Chicken, Turkey, Pork, and Beef from the Greater Washington, D.C., Area

PubMed Central

Zhao, Cuiwei; Ge, Beilei; De Villena, Juan; Sudler, Robert; Yeh, Emily; Zhao, Shaohua; White, David G.; Wagner, David; Meng, Jianghong

2001-01-01

A total of 825 samples of retail raw meats (chicken, turkey, pork, and beef) were examined for the presence of Escherichia coli and Salmonella serovars, and 719 of these samples were also tested for Campylobacter spp. The samples were randomly obtained from 59 stores of four supermarket chains during 107 sampling visits in the Greater Washington, D.C., area from June 1999 to July 2000. The majority (70.7%) of chicken samples (n = 184) were contaminated with Campylobacter, and a large percentage of the stores visited (91%) had Campylobacter-contaminated chickens. Approximately 14% of the 172 turkey samples yielded Campylobacter, whereas fewer pork (1.7%) and beef (0.5%) samples were positive for this pathogen. A total of 722 Campylobacter isolates were obtained from 159 meat samples; 53.6% of these isolates were Campylobacter jejuni, 41.3% were Campylobacter coli, and 5.1% were other species. Of the 212 chicken samples, 82 (38.7%) yielded E. coli, while 19.0% of the beef samples, 16.3% of the pork samples, and 11.9% of the turkey samples were positive for E. coli. However, only 25 (3.0%) of the retail meat samples tested were positive for Salmonella. Significant differences in the bacterial contamination rates were observed for the four supermarket chains. This study revealed that retail raw meats are often contaminated with food-borne pathogens; however, there are marked differences in the prevalence of such pathogens in different meats. Raw retail meats are potential vehicles for transmitting food-borne diseases, and our findings stress the need for increased implementation of hazard analysis of critical control point (HACCP) and consumer food safety education efforts. PMID:11722889

The timber resources of the Inland Empire area, Washington.

Treesearch

Hal A. Arbogast

1974-01-01

The latest inventory of the timber resources of the Inland Empire area of Washington indicates there are 24 billion board feet of sawtimber on 3.9 million acres of commercial forest land. Public agencies administer about 56 percent of the area and 70 percent of the sawtimber volume, farmer and miscellaneous private ownerships account for 37 percent of the area but only...

Water-quality data at amphibian research sites in Maryland, Washington, D.C., and Virginia, 2005-2007

USGS Publications Warehouse

Rice, Karen C.

2008-01-01

Data on the chemical composition of water were collected at least once from 47 amphibian research sites in Maryland, Washington, D.C., and Virginia, from 2005 through 2007. One hundred twenty-five water samples were collected from vernal pools and streams and analyzed as part of long-term monitoring projects of the U.S. Geological Survey Amphibian Research and Monitoring Initiative in the Northeast Region. Field measurements of water temperature, specific conductance, and pH were made. Laboratory analyses of the water samples included acid-neutralizing capacity, total Kjeldahl nitrogen (ammonium plus organic nitrogen), nitrite plus nitrate, total nitrogen, and total phosphorus concentrations. Field and laboratory analytical results of water samples and quality-assurance data are presented.

Childhood sexual abuse and HIV-related risks among men who have sex with men in Washington, DC.

PubMed

Phillips, Gregory; Magnus, Manya; Kuo, Irene; Rawls, Anthony; Peterson, James; Montanez, Luz; West-Ojo, Tiffany; Jia, Yujiang; Opoku, Jenevieve; Greenberg, Alan E

2014-05-01

Childhood sexual abuse (CSA) has been reported to be disproportionately higher among men who have sex with men (MSM) than among heterosexual men; it has also been found to be significantly positively associated with HIV status and HIV risk factors, including unprotected anal intercourse. The purpose of this study was to assess the correlates of CSA in a sample of community-recruited MSM, investigate race as a potential effect modifier, and describe the independent association between CSA and HIV infection in Washington, DC. A total of 500 MSM were recruited by venue-based sampling in 2008 as part of the National HIV Behavioral Surveillance. More than one-half of MSM identified as White, while one-third identified as Black. CSA was reported by 17.5 % of the 451 MSM, with the first instance of abuse occurring at a median age of 8.3 (interquartile range = 5.0, 11.0). In multivariable analysis, HIV-positive men were significantly more likely to report a history of CSA compared to HIV-negative men after adjusting for intimate partner violence in the last 12 months, having been arrested in the last 12 months, and depressive symptoms. HIV-positive MSM had more than four times the odds of reporting CSA after controlling for other correlates (aOR = 4.19; 95 % CI 2.26, 7.75). Despite hypothesizing that race modified the effect of CSA on HIV infection we found this was not the case in this sample. More research is needed to investigate the potential pathway between a history of CSA and HIV infection, and how this contributes to driving the HIV epidemic among MSM in Washington, DC.

76 FR 63846 - Substantially Underserved Trust Areas (SUTA)

Federal Register 2010, 2011, 2012, 2013, 2014

2011-10-14

... CFR Part 1700 RIN 0572-AC23 Substantially Underserved Trust Areas (SUTA) AGENCY: Rural Utilities... of infrastructure projects in Substantially Underserved Trust Areas (SUTA). The intent is to..., Washington, DC 20250-1522. Title: Substantially Underserved Trust Areas. Type of Request: Approval of a new...

Green Buildings: Benefits to Health, the Environment, and the Bottom Line. US Senate Environment and Public Works Committee Hearing, Washington, DC, May 15, 2007

ERIC Educational Resources Information Center

Barnett, Claire L.

2007-01-01

This paper presents a transcript of the speech delivered by the author at the US Senate Environment and Public Works Committee Hearing, Washington, DC, May 15, 2007. The author talked about how the Healthy Schools Network works to ensure that every child will have an environmentally healthy school that is clean and in good repair. The organization…

75 FR 80744 - Airworthiness Directives; McDonnell Douglas Corporation Model DC-9-81 (MD-81), DC-9-82 (MD-82...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-12-23

...: We propose to adopt a new airworthiness directive (AD) for all Model DC-9-81 (MD-81), DC-9-82 (MD-82... inspections for cracking of the left and right upper center skin panels of the horizontal stabilizer, and..., West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590. Hand...

Health hazard evaluation report HETA 91-124-2192, U. S. Park Police, Washington, DC

DOE Office of Scientific and Technical Information (OSTI.GOV)

Echt, A.; Klein, M.; Reh, C.M.

1992-03-01

In response to a request from the U.S. Park Police (SIC-9221), Washington, D.C., a study was undertaken of possible hazardous exposures to lead (7439921) at a new indoor firing range. Air sampling revealed that for students using the range during training, the 8 hour time weighted average (TWA) exposures ranged from 4.4 micrograms/cubic meter (microg/cu m) to 116.4 microg/cu m of airborne lead, with a mean of 32.5 microg/cu m. For range officers, the TWA exposures ranged from 0.15 to 52.6 microg/cu m, mean 16.1 microg/cu m. Area samples ranged from 0.15 to 2291.1 microg/cu m. During qualification shooting, themore » 8 hour TWA exposures for students ranged from 1.0 to 103.8 microg/cu m, with a mean of 26.3 microg/cu m. For range officers, the 8 hour TWA exposures ranged from 9.7 to 39.8 microg/cu m, mean 18.0 microg/cu m. A smoke machine was used to visualize the air patterns in the firing range. It was found that contaminated air could be pulled from downrange to behind the shooting line. The authors conclude that overexposure to lead occurred during use of the firing range, due to deficiencies in the range ventilation system. The authors recommend specific measures to lessen the hazardous exposures.« less

47 CFR 90.375 - RSU license areas, communication zones and registrations

Code of Federal Regulations, 2010 CFR

2010-10-01

.... Governmental applicants will be issued a geographic area license based on the geo-political area encompassing... Federal Communications Commission, 445 12th Street, SW., Washington, DC 20554 or National Archives and...

47 CFR 90.375 - RSU license areas, communication zones and registrations

Code of Federal Regulations, 2011 CFR

2011-10-01

.... Governmental applicants will be issued a geographic area license based on the geo-political area encompassing... Federal Communications Commission, 445 12th Street, SW., Washington, DC 20554 or National Archives and...

47 CFR 90.375 - RSU license areas, communication zones and registrations

Code of Federal Regulations, 2012 CFR

2012-10-01

.... Governmental applicants will be issued a geographic area license based on the geo-political area encompassing... Federal Communications Commission, 445 12th Street, SW., Washington, DC 20554 or National Archives and...

47 CFR 90.375 - RSU license areas, communication zones and registrations

Code of Federal Regulations, 2014 CFR

2014-10-01

.... Governmental applicants will be issued a geographic area license based on the geo-political area encompassing... Federal Communications Commission, 445 12th Street, SW., Washington, DC 20554 or National Archives and...

47 CFR 90.375 - RSU license areas, communication zones and registrations

Code of Federal Regulations, 2013 CFR

2013-10-01

.... Governmental applicants will be issued a geographic area license based on the geo-political area encompassing... Federal Communications Commission, 445 12th Street, SW., Washington, DC 20554 or National Archives and...

75 FR 20776 - Security Zone; Potomac River, Washington Channel, Washington, DC

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-21

.... Coast Guard Commandant's Change of Command ceremony from 6 a.m. through 5 p.m. on May 25, 2010. Entry.... Basis and Purpose The Coast Guard will conduct a Change of Command ceremony at Fort McNair in Washington... the U.S. Coast Guard Commandant's Change of Command ceremony. Due to the catastrophic impact a...

75 FR 12718 - United States Navy Restricted Area, Puget Sound, Naval Station Everett, Washington

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-17

... Navy Restricted Area, Puget Sound, Naval Station Everett, Washington AGENCY: U.S. Army Corps of... of Puget Sound adjacent to Naval Station Everett, Everett, Snohomish County, Washington. The... area is described below. The intent of the proposed rule is to increase safety and security of naval...

33 CFR 334.1215 - Port Gardner, Everett Naval Base, naval restricted area, Everett, Washington.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 33 Navigation and Navigable Waters 3 2011-07-01 2011-07-01 false Port Gardner, Everett Naval Base, naval restricted area, Everett, Washington. 334.1215 Section 334.1215 Navigation and Navigable Waters... REGULATIONS § 334.1215 Port Gardner, Everett Naval Base, naval restricted area, Everett, Washington. (a) The...

Washington, D.C. | Midmarket Solar Policies in the United States | Solar

Science.gov Websites

Community Solar in the District of Columbia DC Sun: Community Solar Programs and incentives Department of Choice DC DC Sun: Solar Incentives Other DC Sun District of Columbia Sustainable Energy Utility

Photocopy of original blackandwhite silver gelatin print, VIEW FROM WASHINGTON ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Photocopy of original black-and-white silver gelatin print, VIEW FROM WASHINGTON MONUMENT, October 3, 1929, photography Commercial Photo - Internal Revenue Service Headquarters Building, 1111 Constitution Avenue Northwest, Washington, District of Columbia, DC

COLLABORATIVE HYDROLOGIC RESEARCH IN THE CLARKSBURG SPECIAL PROTECTION AREA

EPA Science Inventory

This research project is focused on the Clarksburg Special Protection Area (CSPA) in Montgomery County, Maryland. The CSPA subwatersheds are on the outer edge of the urban development shockwave expanding outward from the Washington DC metropolitan area. This is an area of rapid d...

GOAT ROCKS WILDERNESS AND ADJACENT ROADLESS AREAS, WASHINGTON.

USGS Publications Warehouse

Church, S.E.; Close, T.J.

1984-01-01

The Goat Rocks Wilderness and adjacent roadless areas are a rugged, highly forested, scenic area located on the crest of the Cascade Range in south-central Washington. Several mineral claims have been staked in the area. Mineral surveys were conducted. Geochemical, geophysical, and geologic investigations indicate that three areas have probable mineral-resource potential for base metals in porphyry-type deposits. Available data are not adequate to permit definition of the potential for oil and gas. There is little likelihood for the occurrence of other kinds of energy resources in the area. Evaluation of resource potential in the three areas identified as having probable mineral-resource potential could be improved by more detailed geochemical studies and geologic mapping.

Landslide Hazards in the Seattle, Washington, Area

USGS Publications Warehouse

Baum, Rex; Harp, Ed; Highland, Lynn

2007-01-01

The Seattle, Washington, area is known for its livability and its magnificent natural setting. The city and nearby communities are surrounded by an abundance of rivers and lakes and by the bays of Puget Sound. Two majestic mountain ranges, the Olympics and the Cascades, rim the region. These dramatic natural features are products of dynamic forces-landslides, earthquakes, tsunamis, glaciers, volcanoes, and floods. The same processes that formed this beautiful landscape pose hazards to the ever-growing population of the region. Landslides long have been a major cause of damage and destruction to people and property in the Seattle area.

Large Dog Relinquishment to Two Municipal Facilities in New York City and Washington, D.C.: Identifying Targets for Intervention

PubMed Central

Weiss, Emily; Slater, Margaret; Garrison, Laurie; Drain, Natasha; Dolan, Emily; Scarlett, Janet M.; Zawistowski, Stephen L.

2014-01-01

Simple Summary While the overall trend in euthanasia has been decreasing nationally, large dogs are at a higher risk of euthanasia than other-sized dogs in most animal shelters in the United States. We hypothesized that one way to increase the lives saved with regard to large dogs in shelters is to keep them home in the first place when possible. Our research is the first to collect data in New York City and Washington, D.C., identifying the process leading to the owner relinquishment of large dogs. We found that targets for interventions to decrease large dog relinquishment are likely different in each community. Abstract While the overall trend in euthanasia has been decreasing nationally, large dogs are at a higher risk of euthanasia than other sized dogs in most animal shelters in the United States. We hypothesized one way to increase the lives saved with respect to these large dogs is to keep them home when possible. In order to develop solutions to decrease relinquishment, a survey was developed to learn more about the reasons owners relinquish large dogs. The survey was administered to owners relinquishing their dogs at two large municipal facilities, one in New York City and one in Washington, D.C. There were 157 responses between the two facilities. We found both significant similarities and differences between respondents and their dogs from the two cities. We identified opportunities to potentially support future relinquishers and found that targets for interventions are likely different in each community. PMID:26480315

Shaping the New World Order: International Cultural Opportunities and the Private Sector. Edited Proceedings of an International Cultural Forum (Washington, D.C., December 13, 1991).

ERIC Educational Resources Information Center

Richardson, Malcolm, Ed.; And Others

This publication presents the proceedings of a forum held at the U.S. State Department (Washington, D.C.) on the influence of international cultural opportunities in the new world order taking shape since the demise of Communism. The speeches, introductions, and forum discussions are offered in the order that they occurred over the course of a…

12. VISTA SOUTHWEST ON NEW HAMPSHIRE AVENUE TO WASHINGTON CIRCLE ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

12. VISTA SOUTHWEST ON NEW HAMPSHIRE AVENUE TO WASHINGTON CIRCLE FROM RESERVATION NO. 140 AT THE INTERSECTION OF NEW HAMPSHIRE AVENUE, M, AND 21ST STREETS, NW. - New Hampshire Avenue, Washington, District of Columbia, DC

The Washington, DC, Youth Curfew: effect on transports of injured youth and homicides.

PubMed

Moscovitz, H; Milzman, D; Haywood, Y

2000-01-01

Curfews are implemented to curtail youth violence. Trauma systems and emergency medical services (EMS) may need to prepare for changes in patient volume resulting from local ordinances. This study evaluated the impact of the 1995 Washington, DC, Juvenile Curfew Act on EMS transports of injured youth and on youth homicides. A retrospective, comparative cohort study was performed. Transports of injured youth and youth homicides were counted in corresponding months of 1994 and 1995. Cohorts were formed by year, time of day, age group, and mechanism of injury. Year-to-year statistical comparisons of injury proportions were performed using the chi square and Fisher's exact tests. One thousand forty-eight transports were included. No significant difference was observed in transports with curfew implementation. Most assaults on youth occurred outside the curfew time. No effect of the curfew on homicides was detected. Of 67 homicides, only two victims were under the curfew. No effect of the curfew on transports for injuries or on homicides was demonstrated. The curfew was not in effect during the period of highest risk.

Vault Area (original section), south corridor, looking west Fort ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Vault Area (original section), south corridor, looking west - Fort McNair, Film Store House, Fort Lesley J. McNair, P Street between Third & Fourth Streets, Southwest, Washington, District of Columbia, DC

2. Basement tunnel plan: Pine (Building 6, HABS DC349AA), Linden ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

2. Basement tunnel plan: Pine (Building 6, HABS DC-349-AA), Linden (Building 28 HABS DC-349-AD), Holly (Building 29, HABS DC-349-AE), East Lodge / Detached Nurses Home (Building 30, HABS DC-349-AB) - St. Elizabeths Hospital, Tunnels, 2700 Martin Luther King Jr. Avenue, Southeast, Washington, District of Columbia, DC

Tobacco retail outlet advertising practices and proximity to schools, parks and public housing affect Synar underage sales violations in Washington, DC.

PubMed

Kirchner, Thomas R; Villanti, Andrea C; Cantrell, Jennifer; Anesetti-Rothermel, Andrew; Ganz, Ollie; Conway, Kevin P; Vallone, Donna M; Abrams, David B

2015-03-01

To examine the cross-sectional association between illicit sales of tobacco to minors, Washington DC tobacco outlet advertising practices, retail store type, the demographic make-up of the area surrounding each outlet, and the proximity of each outlet to high schools, recreational parks and public housing. Seven hundred and fifty tobacco outlets in the DC area, n=347 of which were randomly selected for inspection by the Synar Inspection Program in 2009-2010. The presence of tobacco advertisements on the interior and exterior of each outlet, and illicit tobacco sales to Synar Inspection Program youth volunteers. The presence of tobacco advertisements on the exterior of gas stations was much greater than on other retail store types (OR=6.68; 95% CI 4.05 to 11.01), as was the absence of any advertisements at bars or restaurants that sold tobacco (OR=0.33; 95% CI 0.22 to 0.52). Exterior tobacco advertisements were also more likely in predominantly African-American areas of the city (OR=3.11; 95% CI 2.28 to 4.25), and particularly likely on storefronts located closer to parks (OR=1.87; 95% CI 1.06 to 3.28). Illicit sales to minors were more common at gas stations (OR=3.01; 95% CI 1.5 to 6.3), outlets that displayed exterior tobacco advertisements closer to parks (OR=3.36; 95% CI 1.38 to 8.21), and outlets located closer to high schools in majority African-American block groups (OR=1.29; 95% CI 1.07 to 1.58). Findings demonstrate that while illicit tobacco sales to minors are occurring at acceptably low rates by Synar standards, illicit sales vary considerably by retail store type, advertising approach and proximity to high schools, parks and African-American residential areas. Future work may help inform regulatory efforts to reduce youth access at the neighbourhood, city, state and national levels. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.

Washington Monument Grounds, U.S. Reservation 2, Fiveacres, northeast section of ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Washington Monument Grounds, U.S. Reservation 2, Five-acres, northeast section of the 106-acre,Washington Monument Grounds. Bounded by Constitution Avenue to the north, Madison Drive to the south, 14th Street to the east, and 15th Street to the West, Washington, District of Columbia, DC

The Fiscal Impact of the D.C. Voucher Program

ERIC Educational Resources Information Center

Aud, Susan L.; Michos, Leon

2006-01-01

In August 2004 the first ever federally funded school voucher program began in Washington, D.C. Eligible students could attend a private school of their choice in the District of Columbia. Each participant received up to $7,500 for school tuition, fees, and transportation. In addition, the D.C. Public School System (DCPS) and D.C. charter school…

Washington's Bold Reformer

ERIC Educational Resources Information Center

Schachter, Ron

2008-01-01

For more than a year, the debate, press coverage, and buzz in Washington, D.C., have swirled over whether someone so different--and so relatively inexperienced--can deliver sweeping change. And presidential hopeful Barack Obama hasn't been the only one receiving that kind of unrelenting scrutiny. This article describes Michelle Rhee who became…

Justice Department Enforcement of the Neutrality Statutes in the South Florida Area.

DTIC Science & Technology

1984-04-16

FRDI-RI43 548 JUSTICE EPRTMENT ENFORCEMENT OF THE NEUTRALITY i/i STATUTES IN THE SOUTH FLORIDR AREA(U) GENERAL ACCOUNTING OFFICE WASHINGTON DC...GENERAL GOVERNMENT DIV * f l f l l f l f l .... END ffjff’ 1.0 2.2i 6 -0 1112. 1.8 ’AR - -" -• - R+OD BYTHE US. General Accounting Office Justice...GAO/GGD-84-58 0 APRIL 16, 1984 84 07 4 0C UNITED STATES GENERAL ACCOUNTING OFFICE WASHINGTON. D.C. 20548 W4AL GOVERNMENT WVIrnON B-206099 * The

U.S. Department of Energy Hydrogen and Fuel Cells Program 2016 Annual Merit Review and Peer Evaluation Report: June 6-10, 2016, Washington, DC

DOE Office of Scientific and Technical Information (OSTI.GOV)

Popovich, Neil

The fiscal year 2016 U.S. Department of Energy (DOE) Hydrogen and Fuel Cells Program Annual Merit Review and Peer Evaluation Meeting (AMR), in conjunction with DOE's Vehicle Technologies Office AMR, was held from June 6-10, 2015, in Washington, D.C.. This report is a summary of comments by AMR peer reviewers about the hydrogen and fuel cell projects funded by DOE's Office of Energy Efficiency and Renewable Energy.

Botanical reconnaissance of meeks table Research Natural Area, Washington.

Treesearch

Reid Schuller; Shelley. Evans

1986-01-01

A floristic survey of Meeks Table Research Natural Area in the Wenatchee National Forest, Washington, documents 159 vascular plant taxa representing 39 families. This paper provides estimates of abundance by plant community or by other habitat characteristics for all taxa listed. Plant communities are described and mapped based on current vegetation.

Projections of forestland and developed land areas in western Washington.

Treesearch

R. Alig; E. White

2007-01-01

Between 1990 and 2000, nonfederal timberland areas in western Washington declined by 5 percent, in contrast to a 3-percent reduction for the 1980-90 period. Most of this reduction is attributed to the conversion of timberland to other land uses, especially urban and other developed uses. In areas such as the Puget Sound region, population densities have more than...

Preliminary timber resource statistics for the Puget Sound area, Washington.

Treesearch

Colin D. MacLean; Janet L. Ohmann; Patricia M. Bassett

1991-01-01

This report summarizes a 1989 timber resource inventory of eight counties in the Puget Sound region of Washington: Island, King, Kitsap, Pierce, Skagit, San Juan, Snohomish, and Whatcom. Detailed tables of forest area, timber volume, growth, mortality, and harvest are presented.

A one-size-fits-all HIV prevention and education approach?: Analyzing and interpreting divergent HIV risk perceptions between African American and East African immigrant women in Washington, DC

PubMed Central

De Jesus, Maria; Taylor, Juanita; Maine, Cathleen; Nalls, Patricia

2015-01-01

Background To date, there are very few comparative US studies and none in DC that distinguish between US-born and foreign-born Black women to examine and compare their perceptions of HIV risk. This qualitative study, therefore, analyzes African American and East African women’s perceptions of HIV risk in the Washington DC Metropolitan area, which has the highest AIDS rate in the US. Methods Forty in-depth, semi-structured interviews and 10 cognitive interviews were conducted among a sample of 25 African American women and 25 East African born women between October 2012 and March 2013 to examine perceptions regarding HIV risk. The in-depth semi-structured interviews were preceded by the cognitive interviews and accompanying survey. Study protocol was reviewed and approved by the American University Institutional Review Board. Results Adopting Boerma and Weir’s Proximate Determinants conceptual framework to interpret the data, the results of the study demonstrate that African American and East African immigrant women have divergent perceptions of HIV risk. While African American women ascribe HIV risk to individual-level behaviors and choices such as unprotected sex, East African women attribute HIV risk to conditions of poverty and survival. Conclusions Study findings suggest that addressing HIV prevention and education among Black women in DC will require distinct and targeted strategies that are culturally and community-centered in order to resonate with these different audiences. PMID:26766523

Water-quality and amphibian population data for Maryland, Washington, D.C., and Virginia, 2001-2004

USGS Publications Warehouse

Rice, K.C.; Jung, R.E.

2004-01-01

Data on the chemical composition of water and on amphibian populations were collected at least annually from vernal pool and stream sites in Maryland, Washington, D.C., and Virginia, from 2001 through 2004. The data were collected as part of long-term monitoring projects of the Northeast Region of the Amphibian Research and Monitoring Initiative (ARMI) of the U.S. Geological Survey. Water samples were analyzed for temperature, specific conductance, pH, dissolved-oxygen concentration, acid-neutralizing capacity, and concentrations of total Kjeldahl nitrogen and total phosphorus; in 2004, samples also were analyzed for nitrite plus nitrate concentrations and total nitrogen concentrations. Field and laboratory analytical results of water samples and quality-assurance information are presented. Amphibian population data include the presence of amphibian species and the maximum number of egg masses of wood frogs and spotted salamanders at vernal pools, and counts of amphibians made during stream transect and stream quadrat surveys.

Assessing urban forest effects and values, Washington, D.C.'s urban forest

Treesearch

David J. Nowak; Robert E. III Hoehn; Daniel E. Crane; Jack C. Stevens; Jeffrey T. Walton

2006-01-01

An analysis of trees in Washington, D.C. reveals that this city has about 1,928,000 trees with canopies that cover 28.6 percent of the area. The most common tree species are American beech, red maple, and boxelder. The urban forest currently store about 526,000 tons of carbon valued at $9.7 million. In addition, these trees remove about 16,200 tons of carbon per year...

Elementary school children's responses 3 months after the September 11 terrorist attacks: a study in Washington, DC.

PubMed

Phillips, Deborah; Prince, Shantay; Schiebelhut, Laura

2004-10-01

This study examined the responses of elementary school children in Washington, DC, to the September 11 terrorist attacks. Parents (primarily mothers) of children in kindergarten through Grade 6 and children in Grades 4 to 6, including 47 matched parent-child pairs, completed questionnaires regarding exposure, stress reactions, and constructive actions taken 3 months after the attacks. Parent reports and, to an even greater extent, children's self-reports revealed high levels of negative reactions to the attacks on behalf of the children. These reactions were best understood in the context of their exposure to the attacks, primarily through television news, and the reactions of and coping assistance provided by their parents. Implications for school personnel, health care professionals, and intervention efforts are discussed. ((c) 2004 APA, all rights reserved).

The Washington National Cathedral: A Place to Gather Together

ERIC Educational Resources Information Center

Groce, Eric; Groce, Robin

2011-01-01

Washington, D.C. is a city widely recognized for its monuments, memorials, and landmarks. Visitors are routinely drawn to the great sites that mark the nation's history such as the Vietnam Veterans Memorial, Arlington National Cemetery, the Lincoln Memorial, and the Washington Memorial, among others. One site that is often overlooked is the…

Energy savings opportunity survey at Walter Reed Army Medical Center, Washington, DC. Final Submittal report

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

1987-10-22

This Energy Savings Opportunity Survey (ESOS) was performed for sixteen (16) buildings at Walter Reed Army Medical Center (WPAMC) in Washington, D.C. This survey was intended to reevaluate and update projects from a previous Energy Engineering Analysis Program (EEAP) survey performed at WRAMC. However, the previous EEAP survey was determined by the contracting officer to be incomplete and not worthy of further consideration. Therefore, this survey involved the complete reevaluation of the buildings to determine their potential energy cost savings. Six (6) projects and nine (9) low cost/no cost energy conservation opportunities (ECO`s) are recommended for implementation in the buildings.more » These projects and ECO`s are projected to annually save $448,263 at an implementation cost of $891,659. The simple payback (i.e., implementation cost divided by cost savings) for the recommendations in the survey is 1.99 years. The two (2) projects with the greatest cost savings are a stack heat recovery system (Project Number 5) and HVAC modifications (Project Number 1). These two (2) projects will provide 67% of the projected total savings for the survey. The sixteen (16) buildings in this survey represent only 22% of the total floor area of the Walter Reed Army Medical Center complex. It is believed that significant potential energy cost savings amounting to two (2) million dollars may be achieved in the remaining buildings in the complex not included in this survey. Specifically it is believed the main hospital building contains many opportunities for substantial cost savings.« less

Vault Area (original section), east corridor, looking north (Vault Nos. ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Vault Area (original section), east corridor, looking north (Vault Nos. 1-9 - Fort McNair, Film Store House, Fort Lesley J. McNair, P Street between Third & Fourth Streets, Southwest, Washington, District of Columbia, DC

Financial Review: Member Jurisdictions of the Washington Metropolitan Area Transit Authority

DOT National Transportation Integrated Search

1987-02-01

This Financial Review was commissioned by the Urban Mass Transportation Administration ("UMTA") and contains pertinent credit information for the jurisdictions who contribute funds to the Washington Metropolitan Area Transit Authority ("WMATA") for t...

Reducing Our Carbon Footprint: A Low-Energy House in Berkeley, Kabul, and Washington DC (LBNL Science at the Theater)

ScienceCinema

Diamond, Rick [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

2018-05-14

How well can we assess and improve building energy performance in California homes? How much energy-and carbon-do homes use in other parts of the world? Rick Diamond, deputy group leader of the Berkeley Lab Energy Performance of Buildings Group, discusses change, global solutions, and the stories of three houses in Berkeley, Kabul (Afghanistan), and Washington, D.C. Diamond, who is also a senior advisor at the California Institute for Energy and Environment, investigates user interactions with the built environment for improved building energy performance. The group has studied a wide range of issues related to energy use in housing, including duct system efficiency, user behavior, and infiltration and ventilation measurements.

Vault Area (original section), east corridor, interior of Vault No. ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Vault Area (original section), east corridor, interior of Vault No. 7, view west - Fort McNair, Film Store House, Fort Lesley J. McNair, P Street between Third & Fourth Streets, Southwest, Washington, District of Columbia, DC

COLLABORATIVE SCIENCE FOR ENVIRONMENTAL SOLUTIONS: COLLABORATIVE HYDROLOGIC RESEARCH IN THE CLARKSBURG SPECIAL PROTECTION AREA

EPA Science Inventory

This research project is focused on the Clarksburg Special Protection Area (CSPA) in Montgomery County, Maryland. The CSPA subwatersheds are on the outer edge of the exurban development shockwave expanding outward from the Washington DC metropolitan area. The CSPA is an area of...

76 FR 39251 - Airworthiness Directives; The Boeing Company Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-07-06

.... SUMMARY: We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires repetitive inspections for cracking of the left and right upper center skin panels of the... Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590. FOR FURTHER...

Work after 65: Options for the 80's. Hearing before the Special Committee on Aging, United States Senate, Ninety-Sixth Congress, Second Session. Part 2--Washington, D.C.

ERIC Educational Resources Information Center

Congress of the U.S., Washington, DC. Senate Special Committee on Aging.

Flexible retirement policies have worked very well for four major United States corporations, accordinq to testimony of their executives during the second part of a U.S. Senate hearing on work after age 65, conducted in Washington, D.C., in May, 1980. Executives of Xerox, Polaroid, Bankers Life and Casualty, and Atlantic Richfield told the special…

Biomedical Challenges Presented by the American Indian, Proceedings of the Special Session of the PAHO Advisory Committee on Medical Research (7th, Washington, D.C., June 25, 1968).

ERIC Educational Resources Information Center

Pan American Health Organization, Washington, DC.

At each meeting of the Pan American Health Organization Advisory Committee on Medical Research, a special 1-day session is held on a topic chosen by the committee as being of particular interest. At the 7th meeting, which convened in June of 1968 in Washington, D.C., the session surveyed the origin, present distribution, and principal biological…

Managing pedestrians during evacuations of metropolitan areas.

DOT National Transportation Integrated Search

2007-03-01

The September 11(or 9/11), 2001, attacks on the high-profile workplaces of the World Trade Center (WTC) in New York City and the Pentagon in : the Washington, D.C. area, made real the impact of an unexpected, or no-notice, event in a metropolit...

Report on the technical review workshop on the reference dose for Aroclor 1016. Held in Washington, DC on May 24-25, 1994

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

1994-11-01

The report includes information and material from a technical review workshop organized by the U.S. Environmental Protection Agency`s (EPA`s) Risk Assessment Forum for EPA`s Reference Dose/Reference Concentration (RfD/RfC) Work Group. The meeting was held in Washington, DC, at the Barcelo Washington Hotel on May 24-25, 1994. The subject of the technical review was the Integrated Risk Information System (IRIS) RfD entry for Aroclor 1016, a polychlorinated biphenyl (PCB). The expert technical review panel was convened to independently evaluate whether the RfD for Aroclor 1016 is based on a scientifically responsible analysis that represents full consideration of the available data andmore » clean articulation of that analysis in the IRIS RfD entry. EPA also requested panel members to consider four broad options for the Aroclor 1016 RfD as potential recommendations to the RfD/RfC Work Group.« less

Vault Area (original section), east corridor, interior of Vault No. ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Vault Area (original section), east corridor, interior of Vault No. 7, looking up flue - Fort McNair, Film Store House, Fort Lesley J. McNair, P Street between Third & Fourth Streets, Southwest, Washington, District of Columbia, DC

Preliminary evidence for school-based physical activity policy needs in Washington, DC.

PubMed

Goodman, Emily; Evans, W Douglas; DiPietro, Loretta

2012-01-01

The school setting could be a primary venue for promoting physical activity among inner-city children due to the structured natured of the school day. We examined differences in step counts between structured school days (SSD) and weekend days (WED) among a sample of public school children in Washington, DC. Subjects (N = 29) were third- to sixth-grade students enrolled in government-funded, extended-day enrichment programs. Step counts were measured using a pedometer (Bodytronics) over 2 SSD and 2 WED. Differences in mean step counts between SSD and WED were determined using multivariable linear regression, with adjustments for age, sex, and reported distance between house and school (miles). Recorded step counts were low on both SSD and WED (7735 ± 3540 and 8339 ± 5314 steps/day). Boys tended to record more steps on SSD compared with girls (8080 ± 3141 vs. 7491 ± 3872 steps/day, respectively), whereas girls recorded more steps on the WED compared with boys (9292 ± 6381 vs. 7194 ± 3669 steps/day). Parameter estimates from the regression modeling suggest distance from school (P < .01) to be the strongest predictor of daily step counts, independent of day (SSD/WED), sex, and age. Among inner-city school children, a safe walking route to and from school may provide an important opportunity for daily physical activity.

Documentation Supporting D.C. Water's Request for Reimbursement After the 2009 Presidential Inauguration

EPA Pesticide Factsheets

DC Water located in Washington, DC incurred costs for activities related to the Presidential Inauguration in January 2009. Support included the purchase and installation of special manhole covers with security features.

HABS DC,WASH,515A (sheet 1 of 4) Captain Henry Saunders ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

HABS DC,WASH,515A- (sheet 1 of 4) - Captain Henry Saunders House, Virginia Room, National Museum of American History, Smithsonian Institution (moved from VA, Windsor vicinity, U.S. Route 460), Washington, District of Columbia, DC

HABS DC,WASH,515A (sheet 4 of 4) Captain Henry Saunders ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

HABS DC,WASH,515A- (sheet 4 of 4) - Captain Henry Saunders House, Virginia Room, National Museum of American History, Smithsonian Institution (moved from VA, Windsor vicinity, U.S. Route 460), Washington, District of Columbia, DC

HABS DC,WASH,515A (sheet 2 of 4) Captain Henry Saunders ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

HABS DC,WASH,515A- (sheet 2 of 4) - Captain Henry Saunders House, Virginia Room, National Museum of American History, Smithsonian Institution (moved from VA, Windsor vicinity, U.S. Route 460), Washington, District of Columbia, DC

HABS DC,WASH,515A (sheet 3 of 4) Captain Henry Saunders ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

HABS DC,WASH,515A- (sheet 3 of 4) - Captain Henry Saunders House, Virginia Room, National Museum of American History, Smithsonian Institution (moved from VA, Windsor vicinity, U.S. Route 460), Washington, District of Columbia, DC

Vault Area (original section), east corridor, Vault No. 3 showing ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Vault Area (original section), east corridor, Vault No. 3 showing inside surface of outer door - Fort McNair, Film Store House, Fort Lesley J. McNair, P Street between Third & Fourth Streets, Southwest, Washington, District of Columbia, DC

Storage Area (1942 section), looking east, showing concrete structural elements ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Storage Area (1942 section), looking east, showing concrete structural elements and wall opening to vaults - Fort McNair, Film Store House, Fort Lesley J. McNair, P Street between Third & Fourth Streets, Southwest, Washington, District of Columbia, DC

An annotated checklist of the vascular flora of Washington County Mississippi

USDA-ARS?s Scientific Manuscript database

Field explorations have yielded 257 species new to Washington County, Mississippi and Calandrinia ciliata (Ruiz & Pav.) DC. and Ruellia nudiflora (Engelm. & Gray) Urban new to the state. An annotated list of 796 taxa for Washington County is provided and excludes 62 species that were reported from ...

MEASURING HYDROLOGICAL CHANGE DURING EXURBAN DEVELOPMENT: COLLABORATIVE HYDROLOGIC RESEARCH IN THE CLARKSBURG SPECIAL PROTECTION AREA

EPA Science Inventory

This research project is focused on the Clarksburg Special Protection Area (CSPA) in Montgomery County, Maryland. The CSPA subwatersheds are on the outer edge of the exurban development shockwave expanding outward from the Washington DC metropolitan area. The CSPA is an area of ...

MEASURING HYDROLOGICAL CHANGE DURING EXURBAN DEVELOPMENT: COLLABORATIVE HYDROLOGIC RESEARCH IN THE CLARKSBURG SPECIAL PROTECTION AREA

EPA Science Inventory

This research project is focused on the Clarksburg Special Protection Area (CSPA) in Montgomery County, Maryland. The CSPA subwatersheds are on the outer edge of the exurban development shockwave expanding outward from the Washington, DC, metropolitan area. The CSPA is an area o...

Noise test-corrugated rails Washington Metropolitan Area Transit Authority : letter report

DOT National Transportation Integrated Search

1981-12-31

Noise and ground-borne vibration level measurements were made on a section of the Huntington subway route of the Washington Area Metropolitan Transit Authority (WMATA). Measurements were made before, in between, and after a WMATA sponsored rail grind...

Building-Resolved CFD Simulations for Greenhouse Gas Transport and Dispersion over Washington DC / Baltimore

NASA Astrophysics Data System (ADS)

Prasad, K.; Lopez-Coto, I.; Ghosh, S.; Mueller, K.; Whetstone, J. R.

2015-12-01

The North-East Corridor project aims to use a top-down inversion methodology to quantify sources of Greenhouse Gas (GHG) emissions over urban domains such as Washington DC / Baltimore with high spatial and temporal resolution. Atmospheric transport of tracer gases from an emission source to a tower mounted receptor are usually conducted using the Weather Research and Forecasting (WRF) model. For such simulations, WRF employs a parameterized turbulence model and does not resolve the fine scale dynamics generated by the flow around buildings and communities comprising a large city. The NIST Fire Dynamics Simulator (FDS) is a computational fluid dynamics model that utilizes large eddy simulation methods to model flow around buildings at length scales much smaller than is practical with WRF. FDS has the potential to evaluate the impact of complex urban topography on near-field dispersion and mixing difficult to simulate with a mesoscale atmospheric model. Such capabilities may be important in determining urban GHG emissions using atmospheric measurements. A methodology has been developed to run FDS as a sub-grid scale model within a WRF simulation. The coupling is based on nudging the FDS flow field towards that computed by WRF, and is currently limited to one way coupling performed in an off-line mode. Using the coupled WRF / FDS model, NIST will investigate the effects of the urban canopy at horizontal resolutions of 10-20 m in a domain of 12 x 12 km. The coupled WRF-FDS simulations will be used to calculate the dispersion of tracer gases in the North-East Corridor and to evaluate the upwind areas that contribute to tower observations, referred to in the inversion community as influence functions. Results of this study will provide guidance regarding the importance of explicit simulations of urban atmospheric turbulence in obtaining accurate estimates of greenhouse gas emissions and transport.

Vault Area (original section), east corridor, Vault No. 5, showing ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Vault Area (original section), east corridor, Vault No. 5, showing inner set of doors on vault - Fort McNair, Film Store House, Fort Lesley J. McNair, P Street between Third & Fourth Streets, Southwest, Washington, District of Columbia, DC

Vault Area (original section), east corridor, looking north, showing tops ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Vault Area (original section), east corridor, looking north, showing tops of individual vaults and vent housings - Fort McNair, Film Store House, Fort Lesley J. McNair, P Street between Third & Fourth Streets, Southwest, Washington, District of Columbia, DC

Traveltime and dispersion in the Potomac River, Cumberland, Maryland, to Washington, D.C.

USGS Publications Warehouse

Taylor, K.R.; James, R.W.; Helinsky, B.M.

1984-01-01

Data from two traveltime and dispersion studies, using rhodamine dye, are used to develop a generalized procedure for predicting traveltime and downstream concentrations resulting from spillage of water-soluble substances at any point along the Potomac River from Cumberland, Maryland, to Washington, D.C. The procedure will allow the approximate solution to almost any spillage problem concerning traveltime and concentration during periods of relatively steady flow between 50- and 95-percent flow duration. A new procedure for calculating unit peak concentration is derived. The new procedure, based on the similarity in shape of a time-concentration curve and a scalene triangle, allows unit peak concentration to be expressed in terms of the length of the dye cloud. This approach facilitates the linking of peak-concentration attenuation curves for long reaches of rivers which are divided into subreaches for study. An example problem is solved for a hypothetical spill of 20,000 pounds of contaminant at Magnolia, West Virginia. The predicted traveltime of the leading edge, peak concentration, and trailing edge to Point of Rocks, Maryland (110 miles downstream), are 295 , 375, and 540 hours, respectively, for a flow duration of 80 percent. The predicted maximum concentration is 340 micrograms/L. (USGS)

Siting Background Towers to Characterize Incoming Air for Urban Greenhouse Gas Estimation: A Case Study in the Washington, DC/Baltimore Area

NASA Astrophysics Data System (ADS)

Mueller, K.; Yadav, V.; Lopez-Coto, I.; Karion, A.; Gourdji, S.; Martin, C.; Whetstone, J.

2018-03-01

There is increased interest in understanding urban greenhouse gas (GHG) emissions. To accurately estimate city emissions, the influence of extraurban fluxes must first be removed from urban greenhouse gas (GHG) observations. This is especially true for regions, such as the U.S. Northeastern Corridor-Baltimore/Washington, DC (NEC-B/W), downwind of large fluxes. To help site background towers for the NEC-B/W, we use a coupled Bayesian Information Criteria and geostatistical regression approach to help site four background locations that best explain CO2 variability due to extraurban fluxes modeled at 12 urban towers. The synthetic experiment uses an atmospheric transport and dispersion model coupled with two different flux inventories to create modeled observations and evaluate 15 candidate towers located along the urban domain for February and July 2013. The analysis shows that the average ratios of extraurban inflow to total modeled enhancements at urban towers are 21% to 36% in February and 31% to 43% in July. In July, the incoming air dominates the total variability of synthetic enhancements at the urban towers (R2 = 0.58). Modeled observations from the selected background towers generally capture the variability in the synthetic CO2 enhancements at urban towers (R2 = 0.75, root-mean-square error (RMSE) = 3.64 ppm; R2 = 0.43, RMSE = 4.96 ppm for February and July). However, errors associated with representing background air can be up to 10 ppm for any given observation even with an optimal background tower configuration. More sophisticated methods may be necessary to represent background air to accurately estimate urban GHG emissions.

Safety review of Washington Metropolitan Area Transit Authority (WMATA) metrorail operations

DOT National Transportation Integrated Search

1997-09-01

A recent series of accidents and incidents at the Washington Metropolitan Area Transit Authority (WMATA) have raised concerns about the Authority's commitment to safety as its top priority. In January 1996, a train operator was killed at an end-of-th...

Defining Care Patterns and Outcomes Among Persons Living with HIV in Washington, DC: Linkage of Clinical Cohort and Surveillance Data

PubMed Central

Terzian, Arpi; Opoku, Jenevieve; Happ, Lindsey Powers; Younes, Naji; Kharfen, Michael; Greenberg, Alan

2018-01-01

Background Triangulation of data from multiple sources such as clinical cohort and surveillance data can help improve our ability to describe care patterns, service utilization, comorbidities, and ultimately measure and monitor clinical outcomes among persons living with HIV infection. Objectives The objective of this study was to determine whether linkage of clinical cohort data and routinely collected HIV surveillance data would enhance the completeness and accuracy of each database and improve the understanding of care patterns and clinical outcomes. Methods We linked data from the District of Columbia (DC) Cohort, a large HIV observational clinical cohort, with Washington, DC, Department of Health (DOH) surveillance data between January 2011 and June 2015. We determined percent concordance between select variables in the pre- and postlinked databases using kappa test statistics. We compared retention in care (RIC), viral suppression (VS), sexually transmitted diseases (STDs), and non-HIV comorbid conditions (eg, hypertension) and compared HIV clinic visit patterns determined using the prelinked database (DC Cohort) versus the postlinked database (DC Cohort + DOH) using chi-square testing. Additionally, we compared sociodemographic characteristics, RIC, and VS among participants receiving HIV care at ≥3 sites versus <3 sites using chi-square testing. Results Of the 6054 DC Cohort participants, 5521 (91.19%) were included in the postlinked database and enrolled at a single DC Cohort site. The majority of the participants was male, black, and had men who have sex with men (MSM) as their HIV risk factor. In the postlinked database, 619 STD diagnoses previously unknown to the DC Cohort were identified. Additionally, the proportion of participants with RIC was higher compared with the prelinked database (59.83%, 2678/4476 vs 64.95%, 2907/4476; P<.001) and the proportion with VS was lower (87.85%, 2277/2592 vs 85.15%, 2391/2808; P<.001). Almost a quarter of

Examination of particulate matter and heavy metals and their effects in at-risk wards in Washington, DC

NASA Astrophysics Data System (ADS)

Greene, Natasha Ann

One of the major contributions to pollution in the Washington, DC urban environment is particulate matter (PM). Quite often, ambient airborne toxics are closely associated with fine PM (PM2.5). We have performed high-resolution aerosol measurements of PM2.5 in four wards (Ward 1, 4, 5, and 7) of Washington, DC during two intensive observational periods (IOP). The first IOP occurred during the summer of 2003 (June 23rd to August 8th). The second IOP transpired during the late fall season of 2003 (October 20th to December 4 th). The measurement platform consisted of a Laser Particle Counter (LPC) and a Quartz Crystal Microbalance Cascade Impactor (QCM) to obtain both in-situ number and mass density distributions across the measurement sites. The data shows spatial distributions of particulate matter characterized as a function of size and mass properties. The QCM analyses show significant levels (> 15 mug/m3) of ward-averaged PM2.5 in Wards 4, 1, and 7 respectively during the summer IOP. However, all wards were less than the EPA National Ambient Air Quality Standard (NAAQS) of 15 mug/m 3 during the fall IOP ward-averaged measurements. Yet, investigations of the site-averaged measurements during the fall revealed some specific locations in Ward 4 that exceeded the NAAQS. Results also show that the aerosol mass density peaked in the 0.3 mum mode during the summer IOP and in the 0.15 mum mode during the fall IOP. The number density peaked in the 0.3--0.5 mum size range. Accordingly, the distributions have also been analyzed as a function of meteorological factors, such as wind speed and direction via NOAA HYSPLIT trajectories. One important attribute to this study is the evaluation of risks amongst IBC subgroups (youth, adults, elderly, black, white, hispanic, male, and female) for bath pediatric asthma rates and the onset of lung cancer over a lifetime (70-year period) when exposed to these levels of particulates. It has been determined that there are individual excess

20 CFR 628.405 - Service delivery areas.

Code of Federal Regulations, 2010 CFR

2010-04-01

... serves a substantial portion of a labor market area. In making such designations, the Governor shall...)(A) of the Act, and making any qualified discretionary designations under section 101(a)(4)(B) of the..., Washington, DC 20210, Attention: ASET. A copy of the appeal shall simultaneously be provided to the Governor...

Aircraft Accident Report; Uncontrolled Impact with Terrain, Fine Airlines Flight 101, Douglas DC-8-61, N27UA, Miami, Florida, August 7, 1997

DTIC Science & Technology

1998-06-16

Transcolombiana de Carga ATI Air Transport International ATOS Air Transportation Oversight System ATP airline transport pilot CAM cockpit area microphone...495,000 fine against Aero Transcolombiana de Carga (ATC) for operating a DC-8-51 "over the weight limits set forth in its FAA-approved flight manual...PB98-910402 NTSB/AAR-98/02 DCA97MA059 NATIONAL TRANSPORTATION SAFETY BOARD WASHINGTON, D.C. 20594 AIRCRAFT ACCIDENT REPORT c>C== UNCONTROLLED IMPACT

Focus on: Washington Hospital Center, Biomedical Engineering Department.

PubMed

Hughes, J D

1995-01-01

The Biomedical Engineering Department of the Washington Hospital Center provides clinical engineering services to an urban 907-bed, tertiary care teaching hospital and a variety of associated healthcare facilities. With an annual budget of over $3,000,000, the 24-person department provides cradle-to-grave support for a host of sophisticated medical devices and imaging systems such as lasers, CT scanners, and linear accelerators as well as traditional patient care instrumentation. Hallmarks of the department include its commitment to customer service and patient care, close collaboration with clinicians and quality assurance teams throughout the hospital system, proactive involvement in all phases of the technology management process, and shared leadership in safety standards with the hospital's risk management group. Through this interactive process, the department has assisted the Center not only in the acquisition of 11,000 active devices with a value of more than $64 million, but also in becoming one of the leading providers of high technology healthcare in the Washington, DC metropolitan area.

Storage Area (1942 section), looking east, showing all of Vault ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

Storage Area (1942 section), looking east, showing all of Vault No. 1 door behind wall opening and sprinkler system - Fort McNair, Film Store House, Fort Lesley J. McNair, P Street between Third & Fourth Streets, Southwest, Washington, District of Columbia, DC

NASA Administrator Bolden Volunteers with the DC Cares Program

NASA Image and Video Library

2009-12-14

NASA Administrator Charles Bolden spent time volunteering with DC Cares at the Park View Recreation Center in Washington, DC for their Santa's Workshop program, Monday, Dec. 14, 2009. Mr. Bolden spoke with students about his experience as a former NASA astronaut and current NASA Administrator, encouraging them to study math and science and to stay in school. Photo Credit: (NASA/Bill Ingalls)

Privacy, a Public Concern: A Resource Document (Proceedings of a Seminar, Washington, D.C., December 1974).

ERIC Educational Resources Information Center

Larsen, Kent S., Ed.

Materials in this resource document were compiled for use in a Washington seminar directed to the interests of state and local government to develop strategies for privacy protection. Included are the texts of issue papers and supporting documents in the following subject areas: (1) criminal justice information; (2) public employee records; (3)…

The Washington Biologists' Field Club : Its members and its history (1900-2006)

USGS Publications Warehouse

Perry, M.C.

2007-01-01

This book is based on the interesting one-hundred-plus-year history of the Club and its members. Plummers Island and the historic cabin on the Island have served as a common meeting area where the Club members have conducted research and held many social activities for over a century. The history has been written and revised over the years by members, and the biographical sketches also have been collected and written by the members. The Club was formed in 1900 and incorporated as a society in 1901 for scientists in the Washington, D.C., area. In recent years the Club has sponsored research by many non-member local scientists with grants totaling over $305,000. The cumulative total of 267 members represents all branches of natural science, with a strong emphasis on biology as the Club name indicates. In addition to the biologists there have been famous naturalists (e.g., John Burroughs), high-level administrators (e.g., Ira Gabrielson), and well-known artists (e.g., Roger Tory Peterson). Most members have been biological scientists, working for agencies in the Washington, D.C., area, who have published many articles and books dealing with biology and related subjects. The book is publIshed mainly for the benefit of the living Club members and for relatives of the deceased members. The members hope that the book will find its way into libraries across the country and that in the future, persons interested in some of the pioneer scientists, in the various professional areas of science, can obtain biographical information from a well-documented source. Most of the 542 illustrations of the members, cabin, and the Island have not been published previously. It is hopeful that the biographical sketches, pictures, and other information presented in this book can generate new information for future publications and for the website of the Washington Biologists' Field Club, which is updated frequently.

Deployment of Low-Cost, Carbon Dioxide Sensors throughout the Washington Metropolitan Area - The Capital Climate Initiative

NASA Astrophysics Data System (ADS)

Caine, Kristen M.; Bailey, D. Michelle; Houston Miller, J.

2016-04-01

According to the IPCC from 1995 to 2005, atmospheric carbon dioxide (CO2) concentrations increased by 19 ppm, the highest average growth rate recorded for any decade since measurements began in the 1950s. Due to its ability to influence global climate change, it is imperative to continually monitor carbon dioxide emission levels, particularly in urban areas where some estimate in excess of 75% of total greenhouse gas emissions occur. Although high-precision sensors are commercially available, these are not cost effective for mapping a large spatial area. A goal of this research is to build out a network of sensors that are accurate and precise enough to provide a valuable data tool for accessing carbon emissions from a large, urban area. This publically available greenhouse gas dataset can be used in numerous environmental assessments and as validation for remote sensing products. It will also be a valuable teaching tool for classes at our university and will promote further engagement of K-12 students and their teachers through education and outreach activities. Each of our sensors (referred to as "PiOxides") utilizes a non-dispersive infrared (NDIR) sensor for the detection of carbon dioxide along with a combination pressure/temperature/humidity sensor. The collection of pressure and temperature increases the accuracy and precision of the CO2 measurement. The sensors communicate using a serial interfaces with a Raspberry Pi microcontroller. Each PiOxide is connected to a website that leverages recent developments in open source GIS tools. In this way, data from individual sensors can be followed individually or aggregated to provide real-time, spatially-resolved data of CO2 trends across a broad area. Our goal for the network is to expand across the entire DC/Maryland/Virginia Region through partnerships with private and public schools. We are also designing GHG Bluetooth beacons that may be accessed by mobile phone users in their vicinity. In two additional

Historical Zinc Smelting in New Jersey, Pennsylvania, Virginia, West Virginia, and Washington, D.C., with Estimates of Atmospheric Zinc Emissions and Other Materials

USGS Publications Warehouse

Bleiwas, Donald I.; DiFrancesco, Carl

2010-01-01

The metallurgical industry can be broadly divided into metal production from feedstock consisting of primary and secondary sources. Primary production refers to the extraction of metal derived from ores and concentrates. Secondary production refers to the recovery of metal from materials such as alloys, electric arc furnace dust, ingots, and scrap. The foci of this study are the histories of selected pyrometallurgical plants that treated mostly primary zinc feedstock and the atmospheric emissions, primarily zinc, generated by those plants during the course of producing zinc and zinc oxide in New Jersey, Pennsylvania, Virginia, West Virginia, and Washington, D.C.

Influence of Land Use, Discharge and Impervious Surfaces on the Geochemistry of the Anacostia River, Washington DC.

NASA Astrophysics Data System (ADS)

MacAvoy, S. E.; De Filippis, N.

2016-12-01

Challenges facing urban rivers include water stormwater runoff and changing water chemistry, not only from air and water pollution, but also from altered geology with the development of "urban karst" (concrete). The Anacostia River in Washington, D.C. has 75% of its watershed classified as urban or impervious, and is among the 10 most contaminated rivers in the USA. In addition to its relatively well-documented organic contamination problems, we hypothesize that concrete could be substantially altering its geochemistry. Here we report findings from 6 locations along the Anacostia River and its tributaries that indicate both seasonally elevated Na and Cl (becoming brackish, 2000-3000 mg/L Total Dissolved Solids, in a suburban creek), and elevated cations in low flow suburban tributaries. Concentrations of all major cations (Ca, Mg, K, Na) strongly, and positively, covaried (factor scores (FC) >0.88). However Ca/Sr ratios negatively covaried with major cations (FC -0.64). This suggests the weathering of low Sr minerals, such as those in concrete. In urbanized portions of the river, Ca/Sr was >200, which is a concrete weathering indicator in areas with silica mineral bedrock (Anacostia bedrock consists of Precambrian phyllits, sericite, chlorite, quartzite, slate and schist). Mean ± SE Sr was 0.13 ± 0.02 mg/L in the most urban area, but 0.37 ± 0.03 mg/L in the most suburban. This supports the hypothesis that the source of elevated cations in the urban areas is concrete weathering, not bedrock mineral weathering. Inorganic N was not correlated strongly with cations. Mean NO3- was highest at the most suburban site (1.8 ± 0.2 mg/L), but rose above 3 mg/L in some samples at all sites. Elevated NO3- did not appear to vary with season or discharge rate at time of sampling. NH4+ was generally lower than 1 mg/L but spiked to 3.4 mg/L at the most urban site. These data follow patterns expected for "urban stream syndrome". Suburban areas, with their relatively small streams

Implications of social class and race for urban public health policy making: a case study of HIV/AIDS and TB policy in Washington, DC.

PubMed

Dievler, A; Pappas, G

1999-04-01

This paper explores how social class and race affect the public health policy-making process in an urban area. Ethnographic methods were used to collect and analyze information about HIV/AIDS and tuberculosis policy-making by the Washington, DC Commission of Public Health, Kingdon's conceptual model of policy making was used to analyze and understand the process. The problems of HIV/AIDS and tuberculosis in the district have important social class dimensions that were not always made explicit, but were instead defined in terms of 'race' and 'place'. Social class considerations and racial politics shaped what policies were developed or not developed and implemented successfully or failed. This study, which has national and international implications, concludes that there is a need to improve our understanding of the complex social dimensions of public health problems; there needs to be more consideration of the politics of strategy formulation and how issues of social class and race affect this process; and public health needs to strengthen its constituency in order to build support for the successful development and implementation of policy.

A One-Size-Fits-All HIV Prevention and Education Approach?: Interpreting Divergent HIV Risk Perceptions Between African American and East African Immigrant Women in Washington, DC Using the Proximate-Determinants Conceptual Framework.

PubMed

De Jesus, Maria; Taylor, Juanita; Maine, Cathleen; Nalls, Patricia

2016-02-01

To date, there are very few comparative US studies and none in DC that distinguish between US-born and foreign-born black women to examine and compare their perceptions of HIV risk. This qualitative study, therefore, analyzes African American and East African women's perceptions of HIV risk in the Washington DC Metropolitan area, which has the highest AIDS rate in the United States. Forty in-depth, semistructured interviews and 10 cognitive interviews were conducted among a sample of 25 African American women and 25 East African born women between October 2012 and March 2013 to examine perceptions regarding HIV risk. The in-depth semistructured interviews were preceded by the cognitive interviews and accompanying survey. Study protocol was reviewed and approved by the American University Institutional Review Board. Adopting Boerma and Weir's Proximate Determinants conceptual framework to interpret the data, the results of the study demonstrate that African American and East African immigrant women have divergent perceptions of HIV risk. Although African American women ascribe HIV risk to individual-level behaviors and choices such as unprotected sex, East African women attribute HIV risk to conditions of poverty and survival. Study findings suggest that addressing HIV prevention and education among black women in DC will require distinct and targeted strategies that are culturally and community-centered to resonate with these different audiences.

American Chemical Society--238th National Meeting & Exposition. Developments in medicinal chemistry: part 1. 16-20 August 2009, Washington DC, USA.

PubMed

Gater, Deborah; Macauley, Donald

2009-10-01

The 238th National Meeting and Exposition of the American Chemical Society, held in Washington DC, included topics covering new compounds and developments in the field of medicinal chemistry. This conference report highlights selected presentations on a novel KV1.5 blocker, a state-dependent CaV2.2 antagonist, therapeutic uses of macrocycles, a novel P2X7 antagonist, developments using the StaR technology platform, the optimization of a neuropeptide S receptor antagonist, and type 1 glycine transport modulators. Investigational drugs discussed include WYE-160020 (Wyeth), Trox-1 (Neuromed Pharmaceuticals Inc), ulimorelin (Tranzyme Pharma Inc), E-32224 (Ensemble Discovery Corp) and PF-03463275 (Pfizer Inc); the discontinued compound AZD-9056 is also highlighted.

Stennis Space Center goes to Washington Folklife Festival

NASA Image and Video Library

2008-07-03

A visitor to the Smithsonian Folklife Festival in Washington, D.C., examines a space shuttle main engine display provided by Stennis Space Center. Since 1975, Stennis has been responsible for testing every engine used in NASA's Space Shuttle Program.

Stennis Space Center goes to Washington Folklife Festival

NASA Technical Reports Server (NTRS)

2008-01-01

A visitor to the Smithsonian Folklife Festival in Washington, D.C., examines a space shuttle main engine display provided by Stennis Space Center. Since 1975, Stennis has been responsible for testing every engine used in NASA's Space Shuttle Program.

Population structure of the bacterial pathogen Xylella fastidiosa among street trees in Washington D.C.

PubMed

Harris, Jordan Lee; Balci, Yilmaz

2015-01-01

Bacterial leaf scorch, associated with the bacterial pathogen Xylella fastidiosa, is a widely established and problematic disease of landscape ornamentals in Washington D.C. A multi-locus sequence typing analysis was performed using 10 housekeeping loci for X. fastidiosa strains in order to better understand the epidemiology of leaf scorch disease in this municipal environment. Samples were collected from 7 different tree species located throughout the District of Columbia, consisting of 101 samples of symptomatic and asymptomatic foliage from 84 different trees. Five strains of the bacteria were identified. Consistent with prior data, these strains were host specific, with only one strain associated with members of the red oak family, one strain associated with American elm, one strain associated with American sycamore, and two strains associated with mulberry. Strains found for asymptomatic foliage were the same as strains from the symptomatic foliage on individual trees. Cross transmission of the strains was not observed at sites with multiple species of infected trees within an approx. 25 m radius of one another. X. fastidiosa strain specificity observed for each genus of tree suggests a highly specialized host-pathogen relationship.

Population Structure of the Bacterial Pathogen Xylella fastidiosa among Street Trees in Washington D.C.

PubMed Central

Harris, Jordan Lee; Balci, Yilmaz

2015-01-01

Bacterial leaf scorch, associated with the bacterial pathogen Xylella fastidiosa, is a widely established and problematic disease of landscape ornamentals in Washington D.C. A multi-locus sequence typing analysis was performed using 10 housekeeping loci for X. fastidiosa strains in order to better understand the epidemiology of leaf scorch disease in this municipal environment. Samples were collected from 7 different tree species located throughout the District of Columbia, consisting of 101 samples of symptomatic and asymptomatic foliage from 84 different trees. Five strains of the bacteria were identified. Consistent with prior data, these strains were host specific, with only one strain associated with members of the red oak family, one strain associated with American elm, one strain associated with American sycamore, and two strains associated with mulberry. Strains found for asymptomatic foliage were the same as strains from the symptomatic foliage on individual trees. Cross transmission of the strains was not observed at sites with multiple species of infected trees within an approx. 25 m radius of one another. X. fastidiosa strain specificity observed for each genus of tree suggests a highly specialized host-pathogen relationship. PMID:25815838

Performance Evaluation Test of the Rapid Area Preparation Tool (RAPTOR)

DTIC Science & Technology

2008-12-01

the standard SETCO tires. A blast test of the new SETCO tire is scheduled for the spring of...Washington, DC 20301-2500 Performance Evaluation Test of the Rapid Area Preparation Tool (RAPTOR) December 2008 Prepared ...2008 to 00-00-2008 4. TITLE AND SUBTITLE Performance Evaluation Test of the Rapid Area Preparation Tool (RAPTOR) 5a. CONTRACT NUMBER 5b.

Spreading Freedom and Saving Money. The Fiscal Impact of the D.C. Voucher Program

ERIC Educational Resources Information Center

Aud, Susan L.; Michos, Leon

2006-01-01

In August 2004 the first ever federally funded school voucher program began in Washington, D.C. Eligible students could attend a private school of their choice in the District of Columbia. Each participant received up to $7,500 for school tuition, fees, and transportation. In addition, the D.C. Public School System (DCPS) and D.C. charter school…

Experimental and Demonstration Manpower Project for Recruitment, Training, Placement and Followup of Rejected Armed Forces Volunteers in Baltimore, Maryland and Washington, D.C., March 1, 1965 to June 30, 1966. Final Report.

ERIC Educational Resources Information Center

National Committee for Children and Youth, Washington, DC.

This report contains an analysis of the efforts in 1965 and 1966 of the National Committee for Children and Youth (NCCY) to help the youth in Baltimore and Washington, D.C. who failed to meet the educational requirements for military enlistment. A description of the program includes: (1) background of the NCCY, (2) intake and followup process, (3)…

Landslides and engineering geology of the Seattle, Washington, area

USGS Publications Warehouse

Baum, Rex L.; Godt, Jonathan W.; Highland, Lynn M.

2008-01-01

This volume brings together case studies and summary papers describing the application of state-of-the-art engineering geologic methods to landslide hazard analysis for the Seattle, Washington, area. An introductory chapter provides a thorough description of the Quaternary and bedrock geology of Seattle. Nine additional chapters review the history of landslide mapping in Seattle, present case studies of individual landslides, describe the results of spatial assessments of landslide hazard, discuss hydrologic controls on landsliding, and outline an early warning system for rainfall-induced landslides.

Local Area Defense (LAD) Demonstration

DTIC Science & Technology

2004-09-01

Prozac ? Fentanyl? Institution, incident command, community drills - use of internet - digital photos of all victims to follow them through the system...and Budget, Paperwork Reduction Project (0704-0188), Washington, DC 20503 1. AGENCY USE ONLY 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED (Leave...detection and rapid response system for local area defense using the University of Maryland Baltimore (UMB) Campus as a testbed. Additional goals includes

50 CFR 660.77 - EFH Conservation Areas off the Coast of Washington.

Code of Federal Regulations, 2014 CFR

2014-10-01

... 50 Wildlife and Fisheries 13 2014-10-01 2014-10-01 false EFH Conservation Areas off the Coast of Washington. 660.77 Section 660.77 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE (CONTINUED) FISHERIES OFF WEST COAST STATES...

75 FR 35122 - Announcement of Meetings of the International Telecommunication Advisory Committee

Federal Register 2010, 2011, 2012, 2013, 2014

2010-06-21

.... Eastern Daylight Time, at 1120 20th Street, Washington, DC 20036. There will also be reports on recent... Conference). For those people outside the Washington, DC metro area, a conference bridge will be provided... 1200 Wilson Boulevard, Arlington, VA 22209. For those people outside the Washington, DC metro area, a...

Social Marketing and the "New" Technology: Proceedings of a Washington Roundtable (Washington, DC, March 25, 1998).

ERIC Educational Resources Information Center

Academy for Educational Development, Washington, DC.

This document examines some of the key issues raised during the second Washington Roundtable on Social Marketing, convened by the Academy for Educational Development (AED) in 1998. AED invited participants to examine whether the interactive technologies that are revolutionizing commercial marketing--personal computers, the Internet (especially the…

33 CFR 334.1244 - Puget Sound, Manchester Fuel Depot, Manchester, Washington; naval restricted area.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 33 Navigation and Navigable Waters 3 2013-07-01 2013-07-01 false Puget Sound, Manchester Fuel... REGULATIONS § 334.1244 Puget Sound, Manchester Fuel Depot, Manchester, Washington; naval restricted area. (a) The area. The waters of Puget Sound surrounding the Manchester Fuel Depot Point A, a point along the...

33 CFR 334.1244 - Puget Sound, Manchester Fuel Depot, Manchester, Washington; naval restricted area.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 33 Navigation and Navigable Waters 3 2012-07-01 2012-07-01 false Puget Sound, Manchester Fuel... REGULATIONS § 334.1244 Puget Sound, Manchester Fuel Depot, Manchester, Washington; naval restricted area. (a) The area. The waters of Puget Sound surrounding the Manchester Fuel Depot Point A, a point along the...

33 CFR 334.1244 - Puget Sound, Manchester Fuel Depot, Manchester, Washington; naval restricted area.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 33 Navigation and Navigable Waters 3 2014-07-01 2014-07-01 false Puget Sound, Manchester Fuel... REGULATIONS § 334.1244 Puget Sound, Manchester Fuel Depot, Manchester, Washington; naval restricted area. (a) The area. The waters of Puget Sound surrounding the Manchester Fuel Depot Point A, a point along the...

Capital Drag: kinging in Washington, DC.

PubMed

Patterson, Jennifer Lyn

2002-01-01

Through individual interviews with three DC drag kings and detailed, first-person accounts of their performances, I examine the role the kings play within the lesbian community at Club Chaos in Dupont Circle. My interviews address how and why the kings started performing, how their drag characters relate to their everyday personalities and experiences as lesbian women, why performing in drag is important to them, why drag performances are important to the women who attend their shows, and how gay men and drag queens have responded to their performances. My descriptions of the kings' performances, the audience response, and the atmosphere they create at the club reflect my viewpoint as a lesbian audience participant who has much appreciation for drag queens and much curiosity about the burgeoning drag king scene. I conclude that drag kings provide a valuable service to lesbian communities by creating a safe, supportive environment in which lesbian performers and audience members can celebrate and explore their relationships to female masculinities and queer sexualities.

Characteristics of Black Men Who Have Sex With Men in Baltimore, Philadelphia, and Washington, D.C.: Geographic Diversity in Socio-Demographics and HIV Transmission Risk.

PubMed

German, Danielle; Brady, Kathleen; Kuo, Irene; Opoku, Jenevieve; Flynn, Colin; Patrick, Rudy; Park, Ju Nyeong; Adams, Joella; Carroll, Makeda; Simmons, Ron; Smith, Carlton R; Davis, Wendy W

2017-07-01

Baltimore, Philadelphia, and Washington, DC are geographically proximate cities with high HIV prevalence, including among black men who have sex with men (BMSM). Using data collected among BMSM in CDC's National HIV Behavioral Surveillance project, we compared socio-demographic characteristics, HIV risk behaviors, and service utilization to explore similarities and differences that could inform local and regional HIV intervention approaches. BMSM were recruited through venue time location sampling, June-December, 2011. Participants completed identical socio-behavioral surveys and voluntary HIV testing. Analyses were conducted among the full sample and those aged 18-24. Participants included 159 (DC), 364 (Baltimore), and 331 (Philadelphia) eligible BMSM. HIV prevalence was 23.1% (DC), 48.0% (Baltimore), 14.6% (Philadelphia) with 30.6%, 69.0%, 33.3% unrecognized HIV infection, respectively. Among BMSM 18-24, HIV prevalence was 11.1% (DC), 38.9% (Baltimore), 9.6% (Philadelphia) with unrecognized HIV infection 0.0%, 73.8%, 60.0% respectively. Compared with the other 2 cities, Baltimore participants were less likely to identify as gay/homosexual; more likely to report unemployment, incarceration, homelessness, sex exchange; and least likely to use the internet for partners. DC participants were more likely to have a college degree and employment. Philadelphia participants were more likely to report gay/homosexual identity, receptive condomless anal sex, having only main partners, and bars/clubs as partner meeting places. Sexually transmitted disease testing was universally low. Analyses showed especially high HIV prevalence among BMSM in Baltimore including among young BMSM. Socio-demographic characteristics and HIV infection correlates differed across cities but unrecognized HIV infection and unknown partner status were universally high.

77 FR 66790 - Proposed Flood Elevation Determinations for Madison County, AL and Incorporated Areas

Federal Register 2010, 2011, 2012, 2013, 2014

2012-11-07

...-2011-0002; Internal Agency Docket No. FEMA-B-1189] Proposed Flood Elevation Determinations for Madison... concerning proposed flood elevation determinations for Madison County, Alabama and Incorporated Areas. DATES... Mitigation Administration, Federal Emergency Management Agency, 500 C Street SW., Washington, DC 20472, (202...

75 FR 53863 - Amendment of Restricted Area R-5113; Socorro, NM

Federal Register 2010, 2011, 2012, 2013, 2014

2010-09-02

... using agency of Restricted Area R- 5113, Socorro, NM, to ``U.S. Air Force, Air Force Research Laboratory....S. Air Force, Air Force Research Laboratory.'' This change is required to reflect the change in the... words ``Using Agency. U.S. Air Force, Air Force Research Laboratory.'' Issued in Washington, DC, on...

77 FR 30440 - Anchorage; Change to Cottonwood Island Anchorage, Columbia River, Oregon and Washington

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-23

... Transportation, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590-0001... screen, insert ``USCG-2011-0348'' in the Docket ID box, press Enter, and then click on the balloon shape... ground floor of the Department of Transportation West Building, 1200 New Jersey Avenue SE., Washington...

Fluxes of Greenhouse Gases from the Baltimore-Washington Area: Results from WINTER 2015 Aircraft Observations

NASA Astrophysics Data System (ADS)

Dickerson, R. R.; Ren, X.; Shepson, P. B.; Salmon, O. E.; Brown, S. S.; Thornton, J. A.; Whetstone, J. R.; Salawitch, R. J.; Sahu, S.; Hall, D.; Grimes, C.; Wong, T. M.

2015-12-01

Urban areas are responsible for a major component of the anthropogenic greenhouse gas (GHG) emissions. Quantification of urban GHG fluxes is important for establishing scientifically sound and cost-effective policies for mitigating GHGs. Discrepancies between observations and model simulations of GHGs suggest uncharacterized sources in urban environments. In this work, we analyze and quantify fluxes of CO2, CH4, CO (and other trace species) from the Baltimore-Washington area based on the mass balance approach using the two-aircraft observations conducted in February-March 2015. Estimated fluxes from this area were 110,000±20,000 moles s-1 for CO2, 700±330 moles s-1 for CH4, and 535±188 moles s-1 for CO. This implies that methane is responsible for ~20% of the climate forcing from these cities. Point sources of CO2 from four regional power plants and one point source of CH4 from a landfill were identified and the emissions from these point sources were quantified based on the aircraft observation and compared to the emission inventory data. Methane fluxes from the Washington area were larger than from the Baltimore area, indicating a larger leakage rate in the Washington area. The ethane-to-methane ratios, with a mean of 3.3%, in the limited canister samples collected during the flights indicate that natural gas leaks and the upwind oil and natural gas operations are responsible for a substantial fraction of the CH4 flux. These observations will be compared to models using Ensemble Kalman Filter Assimilation techniques.

Research natural areas in Oregon and Washington: past and current research and related literature.

Treesearch

S.E. Greene; T. Blinn; J.F. Franklin

1986-01-01

This publication lists all completed and current research projects in research natural areas in Oregon and Washington and in those few research natural areas in Idaho that are administered by National Forests in Oregon. The list includes project title, status, source of funding, and principal investigator and address. A list of publications pertaining to research...

Federal research natural areas in Oregon and Washington: a guidebook for scientists and educators.

Treesearch

Jerry F. Franklin; Fredrick C. Hall; C. T. Dyrness; Chris Maser

1972-01-01

A guide to the use of natural scientific preserves, Research Natural Areas, on Federal lands in Oregon and Washington. Detailed descriptions of physical and biological features, maps and photographs are provided for each of the 45 tracts presently reserved. Indices to Research Natural Areas by vegetation type and plant and mammalian species are included.

Application and evaluation of the WRF-CMAQ modeling system to the 2011 DISCOVER-AQ Baltimore-Washington D.C. study

NASA Astrophysics Data System (ADS)

Appel, W.; Gilliam, R. C.; Pouliot, G. A.; Godowitch, J. M.; Pleim, J.; Hogrefe, C.; Kang, D.; Roselle, S. J.; Mathur, R.

2013-12-01

The DISCOVER-AQ project (Deriving Information on Surface conditions from Column and Vertically Resolved Observations Relevant to Air Quality), is a joint collaboration between NASA, U.S. EPA and a number of other local organizations with the goal of characterizing air quality in urban areas using satellite, aircraft, vertical profiler and ground based measurements (http://discover-aq.larc.nasa.gov). In July 2011, the DISCOVER-AQ project conducted intensive air quality measurements in the Baltimore, MD and Washington, D.C. area in the eastern U.S. To take advantage of these unique data, the Community Multiscale Air Quality (CMAQ) model, coupled with the Weather Research and Forecasting (WRF) model is used to simulate the meteorology and air quality in the same region using 12-km, 4-km and 1-km horizontal grid spacings. The goal of the modeling exercise is to demonstrate the capability of the coupled WRF-CMAQ modeling system to simulate air quality at fine grid spacings in an urban area. Development of new data assimilation techniques and the use of higher resolution input data for the WRF model have been implemented to improve the meteorological results, particularly at the 4-km and 1-km grid resolutions. In addition, a number of updates to the CMAQ model were made to enhance the capability of the modeling system to accurately represent the magnitude and spatial distribution of pollutants at fine model resolutions. Data collected during the 2011 DISCOVER-AQ campaign, which include aircraft transects and spirals, ship measurements in the Chesapeake Bay, ozonesondes, tethered balloon measurements, DRAGON aerosol optical depth measurements, LIDAR measurements, and intensive ground-based site measurements, are used to evaluate results from the WRF-CMAQ modeling system for July 2011 at the three model grid resolutions. The results of the comparisons of the model results to these measurements will be presented, along with results from the various sensitivity simulations

76 FR 31895 - Regulated Navigation Area; Magothy River, Sillery Bay, MD

Federal Register 2010, 2011, 2012, 2013, 2014

2011-06-02

... navigation area (RNA) in certain waters of the Magothy River, in Sillery Bay, Maryland, on July 23, 2011. This RNA is necessary to provide for the safety of life, property and the environment. This RNA... W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590-0001. (4) Hand delivery: Same as mail...

36 CFR 1280.86 - When are the public areas available for events in the National Archives at College Park?

Code of Federal Regulations, 2010 CFR

2010-07-01

... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false When are the public areas... Rules Apply to Use NARA Public Areas in the Washington, DC, Area? National Archives at College Park, Md § 1280.86 When are the public areas available for events in the National Archives at College Park? Most...

36 CFR 1280.86 - When are the public areas available for events in the National Archives at College Park?

Code of Federal Regulations, 2011 CFR

2011-07-01

... 36 Parks, Forests, and Public Property 3 2011-07-01 2011-07-01 false When are the public areas... Rules Apply to Use NARA Public Areas in the Washington, DC, Area? National Archives at College Park, Md § 1280.86 When are the public areas available for events in the National Archives at College Park? Most...

Watershed Scale Impacts of Stormwater Green Infrastructure on Hydrology, Nitrogen Fluxes, and Combined Sewer Overflows in the Baltimore, MD and Washington, DC area

NASA Astrophysics Data System (ADS)

Jaffe, P. R.; Pennino, M. J.; McDonald, R.

2016-12-01

Despite the increasing use of urban stormwater green infrastructure (SGI), including detention ponds and rain gardens, few studies have quantified the cumulative effects of multiple SGI projects on hydrology and water quality at the watershed scale. To assess the effects of SGI, Baltimore County, MD, Montgomery County, MD, and Washington, DC, were selected based on the availability of data on SGI, water quality, and stream flow. The watershed scale impact of SGI was evaluated by assessing how increased spatial density of SGI correlates with stream hydrology and nitrogen exports over space and time. The most common SGI types were detention ponds (58%), followed by marshes (12%), sand filters (9%), wet ponds (7%), infiltration trenches (4%), and rain gardens (2%). When controlling for watersheds size and percent impervious surface cover, watersheds with greater amounts of SGI (>10% SGI) have 44% lower peak runoff, 26% less frequent runoff events, and 26% less variable runoff than watersheds with lower SGI. Watersheds with more SGI also show 44% less NO3- and 48% less total nitrogen exports compared to watersheds with minimal SGI. There was no significant reduction in combined sewer overflows in watersheds with greater SGI. Based on specific SGI types, infiltration trenches (R2 = 0.35) showed the strongest correlation with hydrologic metrics, likely due to their ability to attenuate flow, while bioretention (R2 = 0.19) and wet ponds (R2 = 0.12) showed stronger relationships with nitrogen compared to other SGI types, possibly due to greater denitrification in these sites. When comparing individual watersheds over time, increases in SGI corresponded to non-significant reductions in hydrologic flashiness and combined sewer overflows compared to watersheds with no change in SGI. This study shows that while implementation of SGI is ongoing, some regions are beginning to have enough SGI to see significant impacts on hydrology and water quality at the watershed scale.

Access to Music Education with Regard to Race in Two Urban Areas

ERIC Educational Resources Information Center

Salvador, Karen; Allegood, Kristen

2014-01-01

This quantitative study examined access to school music instruction with regard to race in two urban areas: Detroit, Michigan, and Washington, DC, in 2009-2010. We found significant differences in the provision of music instruction between schools with high and low proportions of nonwhite enrollment, in categories including curricular offerings,…

Father Secchi Goes to Washington

NASA Astrophysics Data System (ADS)

McCarthy, M. F.

1994-12-01

In 1848 a small group of Jesuit refugees arrived at Georgetown College near Washington, D.C. Among them was a young priest, Angelo Secchi, who had finished theology studies in Rome, but had not been able to complete his final examinations. This done successfully, Secchi turned to astronomy and the new facilities of the Georgetown College Observatory, directed by its founder, Fr. James Curley. During his two years in Washington, Secchi studied physics, wrote an article on Electrical Rheometry for the Smithsonian Institution, and formed a friendship with Matthew Fontaine Maury of the U.S. Navy, who headed the Chart Service and in 1844 was named superintendent of the National Observatory. This was later named the U.S. Naval Observatory. Secchi's friendships formed during the Washington visit proved most helpful for relations between European astronomers and U.S. colleagues. Secchi, after his return to Rome constructed the Observatory of the Collegio Romano atop the baroque Church of St. Ignatius in Rome and began his work in spectral classification of stars.

Scaling of economic benefits from Green Roof implementation in Washington, DC.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Niu, H.; Clark, C. E.; Zhou, J.

2010-06-01

Green roof technology is recognized for mitigating stormwater runoff and energy consumption. Methods to overcome the cost gap between green roofs and conventional roofs were recently quantified by incorporating air quality benefits. This study investigates the impact of scaling on these benefits at the city-wide scale using Washington, DC as a test bed because of the proposed targets in the 20-20-20 vision (20 million ft{sup 2} by 2020) articulated by Casey Trees, a nonprofit organization. Building-specific stormwater benefits were analyzed assuming two proposed policy scenarios for stormwater fees ranging from 35 to 50% reduction for green roof implementation. Heat fluxmore » calculations were used to estimate building-specific energy savings for commercial buildings. To assess benefits at the city scale, stormwater infrastructure savings were based on operational savings and size reduction due to reduced stormwater volume generation. Scaled energy infrastructure benefits were calculated using two size reductions methods for air conditioners. Avoided carbon dioxide, nitrogen oxide (NOx), and sulfur dioxide emissions were based on reductions in electricity and natural gas consumption. Lastly, experimental and fugacity-based estimates were used to quantify the NOx uptake by green roofs, which was translated to health benefits using U.S. Environmental Protection Agency models. The results of the net present value (NPV) analysis showed that stormwater infrastructure benefits totaled $1.04 million (M), while fee-based stormwater benefits were $0.22-0.32 M/y. Energy savings were $0.87 M/y, while air conditioner resizing benefits were estimated at $0.02 to $0.04 M/y and avoided emissions benefits (based on current emission trading values) were $0.09 M-0.41 M/y. Over the lifetime of the green roof (40 years), the NPV is about 30-40% less than that of conventional roofs (not including green roof maintenance costs). These considerable benefits, in concert with current and

Scaling of economic benefits from green roof implementation in Washington, DC.

PubMed

Niu, Hao; Clark, Corrie; Zhou, Jiti; Adriaens, Peter

2010-06-01

Green roof technology is recognized for mitigating stormwater runoff and energy consumption. Methods to overcome the cost gap between green roofs and conventional roofs were recently quantified by incorporating air quality benefits. This study investigates the impact of scaling on these benefits at the city-wide scale using Washington, DC as a test bed because of the proposed targets in the 20-20-20 vision (20 million ft(2) by 2020) articulated by Casey Trees, a nonprofit organization. Building-specific stormwater benefits were analyzed assuming two proposed policy scenarios for stormwater fees ranging from 35 to 50% reduction for green roof implementation. Heat flux calculations were used to estimate building-specific energy savings for commercial buildings. To assess benefits at the city scale, stormwater infrastructure savings were based on operational savings and size reduction due to reduced stormwater volume generation. Scaled energy infrastructure benefits were calculated using two size reductions methods for air conditioners. Avoided carbon dioxide, nitrogen oxide (NO(x)), and sulfur dioxide emissions were based on reductions in electricity and natural gas consumption. Lastly, experimental and fugacity-based estimates were used to quantify the NO(x) uptake by green roofs, which was translated to health benefits using U.S. Environmental Protection Agency models. The results of the net present value (NPV) analysis showed that stormwater infrastructure benefits totaled $1.04 million (M), while fee-based stormwater benefits were $0.22-0.32 M/y. Energy savings were $0.87 M/y, while air conditioner resizing benefits were estimated at $0.02 to $0.04 M/y and avoided emissions benefits (based on current emission trading values) were $0.09 M-0.41 M/y. Over the lifetime of the green roof (40 years), the NPV is about 30-40% less than that of conventional roofs (not including green roof maintenance costs). These considerable benefits, in concert with current and

Selected ground-water information for the Pasco basin and adjacent areas, Washington, 1986-1989

USGS Publications Warehouse

Drost, B.W.; Schurr, K.M.; Lum, W. E.

1989-01-01

The U.S. Geological Survey, in cooperation with the United States Department of Energy, conducted a study of the Pasco basin and adjacent areas, Washington, in support of the Basalt Waste Isolation Project at the Hanford site, Washington. The purpose of the study was to develop a data set that would help define the groundwater-flow system of the Pasco Basin. This report contains the basic data, without interpretation, that were collected from the start of the project in February 1986 through January 1989. Information presented is from the U.S. Bureau of Reclamation, State of Washington Department of Ecology , US Army Corps of Engineers, Kennewick Irrigation District, and the Survey, and consists of well location and construction data, records of water levels in the wells, and aquifer designations for each well. The aquifer designation represents the geohydrologic unit to which the well is reported to be open. (USGS)

78 FR 32131 - Revision to the Washington State Implementation Plan; Tacoma-Pierce County Nonattainment Area

Federal Register 2010, 2011, 2012, 2013, 2014

2013-05-29

... Particles in the Wapato Hills-Puyallup River Valley PM2.5 Nonattainment Area (the name formerly used for the...]. * * * * * * * * * * * * (e) * * * State of Washington Nonregulatory Provisions and Quasi-Regulatory Measures Applicable Name...

Reconnaissance data on lakes in the Alpine Lakes Wilderness Area, Washington

USGS Publications Warehouse

Dethier, David P.; Heller, Paul L.; Safioles, Sally A.

1979-01-01

Sixty lakes in the Alpine Lakes Wilderness Area have been sampled from rubber rafts or helicopter to obtain information on their physical setting and on present water-quality conditions. The lakes are located near the crest of the Cascade Range in Chelan and King Counties, Washington. Basic data from these lakes will be useful for planners concerned with lake and wilderness management, and of interest to hikers and other recreationists who use the lakes.

33 CFR 165.1339 - Safety Zone; Coast Guard Exercise Area, Hood Canal, Washington.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Safety Zone; Coast Guard Exercise... § 165.1339 Safety Zone; Coast Guard Exercise Area, Hood Canal, Washington. (a) Location. The following... Coast Guard training exercise while such vessel is transiting Hood Canal, WA between Foul Weather Bluff...

33 CFR 165.1339 - Safety Zone; Coast Guard Exercise Area, Hood Canal, Washington.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Safety Zone; Coast Guard Exercise... § 165.1339 Safety Zone; Coast Guard Exercise Area, Hood Canal, Washington. (a) Location. The following... Coast Guard training exercise while such vessel is transiting Hood Canal, WA between Foul Weather Bluff...

Shrub-inhabiting insects of the 200 Area Plateau, southcentral Washington.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rogers, L.E.

1979-10-01

This study characterizes the insects (including spiders) associated with major shrubs of the 200 Area Plateau on the Hanford Site in southcentral Washington. Big sagebrush (Artemisia tridentata), rabbitbrush (Chrysothamnus sp.) and hopsage (Grayia spinosa) were the three shrubs included in the study. Hemiptera (true bugs) and homoptera (bugs) were the two groups most abundant on sagebrush. Homoptera and Araneida (spiders) were the common inhabitants of rabbitbrush, and Orthoptera (grasshoppers), Coleoptera (beetles), and Araneida the taxa most frequently collected from hopsage. A discussion of the effects of insects on western native shrubs is included. None of the insect populations appeared tomore » threaten the stability of shrub stands, which is important because of the erodability of 200 Area soils.« less

5 CFR 591.215 - Where does OPM collect prices in the COLA and DC areas?

Code of Federal Regulations, 2012 CFR

2012-01-01

... 5 Administrative Personnel 1 2012-01-01 2012-01-01 false Where does OPM collect prices in the COLA... Areas Cost-Of-Living Allowances § 591.215 Where does OPM collect prices in the COLA and DC areas? (a) Survey areas. Each COLA area has one survey area, except Hawaii County, HI, and the U.S. Virgin Islands...

5 CFR 591.215 - Where does OPM collect prices in the COLA and DC areas?

Code of Federal Regulations, 2014 CFR

2014-01-01

... 5 Administrative Personnel 1 2014-01-01 2014-01-01 false Where does OPM collect prices in the COLA... Areas Cost-Of-Living Allowances § 591.215 Where does OPM collect prices in the COLA and DC areas? (a) Survey areas. Each COLA area has one survey area, except Hawaii County, HI, and the U.S. Virgin Islands...

5 CFR 591.215 - Where does OPM collect prices in the COLA and DC areas?

Code of Federal Regulations, 2013 CFR

2013-01-01

... 5 Administrative Personnel 1 2013-01-01 2013-01-01 false Where does OPM collect prices in the COLA... Areas Cost-Of-Living Allowances § 591.215 Where does OPM collect prices in the COLA and DC areas? (a) Survey areas. Each COLA area has one survey area, except Hawaii County, HI, and the U.S. Virgin Islands...

36 CFR 1280.88 - How do I request to use NARA public areas in the National Archives at College Park?

Code of Federal Regulations, 2010 CFR

2010-07-01

... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false How do I request to use NARA public areas in the National Archives at College Park? 1280.88 Section 1280.88 Parks, Forests, and Public... Apply to Use NARA Public Areas in the Washington, DC, Area? National Archives at College Park, Md § 1280...

36 CFR 1280.88 - How do I request to use NARA public areas in the National Archives at College Park?

Code of Federal Regulations, 2011 CFR

2011-07-01

... 36 Parks, Forests, and Public Property 3 2011-07-01 2011-07-01 false How do I request to use NARA public areas in the National Archives at College Park? 1280.88 Section 1280.88 Parks, Forests, and Public... Apply to Use NARA Public Areas in the Washington, DC, Area? National Archives at College Park, Md § 1280...

Development of Short Gate FET’s.

DTIC Science & Technology

1983-12-01

Electrical Engineering AREA OK UIT NUMBERS S School of Engineering, Howard University 61102F 2300 Sixth St. N.W. Washington D.C. 20059 2305/Cl CITROLLING... Howard University Washington# D.C. 20059 64 04 24 021 RESEARCH OBJECTIVES The principal objective of this research is to try to under- stand the... Howard University Washington, D.C. 20059 (202)636-6684 James Comas Naval Research Laboratory, Code 6823 Washington, D.C. 20375 (202)767-3097

Solar Decathlon Visitors Guide 2011, National Mall, West Potomac Park, Washington, D.C., September 23 - October 2, 2011 (Brochure)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

2011-09-01

Guide to the student-designed houses, ten contests, exhibits, and workshops of the U.S. Department of Energy 2011 Solar Decathlon, held in Washington, D.C., from September 23 through October 2, 2011. Teams of college students designed and built the solar-powered houses on display here. They represent 13 U.S. states, five countries, and four continents. Now the teams are rising to the challenge by competing in 10 contests over nine days, with the championship trophy on the line. This is their time to shine. The 2011 teams may share a common goal - to design and build the best energy-efficient house poweredmore » by the sun - but their strategies are different. One house is made of precast concrete, while another 'dances' in response to its environment. Another house is meant to sit atop a building, proving the sky's the limit for energy innovation. Whatever your idea of sustainable living may be, you are bound to find it at the Solar Decathlon.« less

Shallow Groundwater Movement in the Skagit River Delta Area, Skagit County, Washington

USGS Publications Warehouse

Savoca, Mark E.; Johnson, Kenneth H.; Fasser, Elisabeth T.

2009-01-01

Shallow groundwater movement in an area between the lower Skagit River and Puget Sound was characterized by the U.S. Geological Survey to assist Skagit County and the Washington State Department of Ecology with the identification of areas where water withdrawals from existing and new wells could adversely affect streamflow in the Skagit River. The shallow groundwater system consists of alluvial, lahar runout, and recessional outwash deposits composed of sand, gravel, and cobbles, with minor lenses of silt and clay. Upland areas are underlain by glacial till and outwash deposits that show evidence of terrestrial and shallow marine depositional environments. Bedrock exposures are limited to a few upland outcrops in the southwestern part of the study area, and consist of metamorphic, sedimentary, and igneous rocks. Water levels were measured in 47 wells on a quarterly basis (August 2007, November 2007, February 2008, and May 2008). Measurements from 34 wells completed in the shallow groundwater system were used to construct groundwater-level and flow-direction maps and perform a linear-regression analysis to estimate the overall, time averaged shallow groundwater-flow direction and gradient. Groundwater flow in the shallow groundwater system generally moves in a southwestward direction away from the Skagit River and toward the Swinomish Channel and Skagit Bay. Local groundwater flow towards the river was inferred during February 2008 in areas west and southwest of Mount Vernon. Water-level altitudes varied seasonally, however, and generally ranged from less than 3 feet (August 2007) in the west to about 15 feet (May 2008) in the east. The time-averaged, shallow groundwater-flow direction derived from regression analysis, 8.5 deg south of west, was similar to flow directions depicted on the quarterly water-level maps. Seasonal changes in groundwater levels in most wells in the Skagit River Delta follow a typical pattern for shallow wells in western Washington. Water

Examination of Heavy Metals and Particulate Matter Exposures and Effects in Susceptible Wards in the Washington, D.C. Region

NASA Astrophysics Data System (ADS)

Greene, N. A.; Morris, D. R.

2004-05-01

The District of Columbia has one of the greatest health disparities of cancer in the nation and ranks seventh highest as one of the unhealthiest places to live due to poor air quality (EPA Report, 1999). Also, a 1999 report from the Centers for Disease Control stated that the District had the highest overall rate of cancer incidence in the nation. Particulate matter is one of the major contributors to pollution in the environment. Quite often particulate matter is composed of toxic materials including heavy metals, pesticides, and spores. In some cases, the heavy metal particulates are considered carcinogenic. They are typically characterized as particles with diameters smaller than 1 m and are easily deposited into the alveolar regions of the human lungs, which can impose threatening health risks. In this study, I will design and execute an environmental exposure assessment for PM2.5, PM10, and heavy metals like chromium, as well as lead, cadmium and arsenic, in four observed wards of Washington, DC. Most interestingly, spatial distributions of both aerosols and heavy metals will be characterized as a function of size and mass properties. This will formulate a limited climatology of both types of particulate matter and selected heavy metals for specific regions within the District of Columbia. This dataset will further be related to epidemiological data and health outcomes for the observed areas of study. The essence of this study lies in its notoriety as the first to generate a dataset that focuses on toxic air pollutants in particular wards and may be utilized in various aspects of public health.

Geologic map of the Cape Disappointment-Naselle River area, Pacific and Wahkiakum counties, Washington

USGS Publications Warehouse

Wells, R.E.

1989-01-01

The Cape Disappointment-Naselle River area is in southwestern Washington at the mouth of the Columbia River.  The area encompasses several major estuaries and their adjacent highlands, which reach elevations of about 2,000 feet.  Rainfall is abundant and produces heavy vegetation and deep weathering of the bedrock.  Natural bedrock exposures are restricted to stream courses along larger drainages, although a network of logging roads provides excellent access to most of the area and widespread, but somewhat ephemeral, exposures of bedrock.

Expanding veterinary biosurveillance in Washington, DC: The creation and utilization of an electronic-based online veterinary surveillance system.

PubMed

Hennenfent, Andrew; DelVento, Vito; Davies-Cole, John; Johnson-Clarke, Fern

2017-03-01

To enhance the early detection of emerging infectious diseases and bioterrorism events using companion animal-based surveillance. Washington, DC, small animal veterinary facilities (n=17) were surveyed to determine interest in conducting infectious disease surveillance. Using these results, an electronic-based online reporting system was developed and launched in August 2015 to monitor rates of canine influenza, canine leptospirosis, antibiotic resistant infections, canine parvovirus, and syndromic disease trends. Nine of the 10 facilities that responded expressed interest conducting surveillance. In September 2015, 17 canine parvovirus cases were reported. In response, a campaign encouraging regular veterinary preventative care was launched and featured on local media platforms. Additionally, during the system's first year of operation it detected 5 canine leptospirosis cases and 2 antibiotic resistant infections. No canine influenza cases were reported and syndromic surveillance compliance varied, peaking during National Special Security Events. Small animal veterinarians and the general public are interested in companion animal disease surveillance. The system described can serve as a model for establishing similar systems to monitor disease trends of public health importance in pet populations and enhance biosurveillance capabilities. Copyright © 2017 Elsevier B.V. All rights reserved.

Improving the Preparation of Professional Personnel for Vocational Education in Metropolitan Areas. Volume VII, Final Report.

ERIC Educational Resources Information Center

Righthand, Herbert

This institute was designed to study the needs and problems of vocational teaching in metropolitan areas and to recommend model teacher preparation practices. A total of 60 participants, representing 23 states, Washington, D.C., and the Virgin Islands, took part in this program, which consisted of general sessions, homogeneous and heterogeneous…

75 FR 16370 - Regulated Navigation Areas, Safety Zones, Security Zones; Deepwater Ports in Boston Captain of...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-01

... rulemaking. SUMMARY: The Coast Guard proposes to establish new regulated navigation areas (RNAs) and safety... (COTP) Zone, off the coast of Gloucester, Massachusetts. The proposed RNAs and safety and security zones..., SE., Washington, DC 20590-0001. (4) Hand delivery: Same as mail address above, between 9 a.m. and 5 p...

A Tale of Two Systems: Education Reform in Washington D.C.

ERIC Educational Resources Information Center

Osborne, David

2015-01-01

An important contest is taking place in Washington, D.C.--a race between two vehicles designed to carry children into the future with the habits and skills they need to live productive, meaningful lives. The older of the two, the District of Columbia Public Schools (DCPS), uses a "unified governance model" that emerged more than a…

Selected Proceedings ADPA (American Defense Preparedness Association) Conference: Industrial Base Planning Issues ’Industrial Preparedness Initiatives in the New Budget Scenario’ Held at Washington, DC on March 15-16 1984,

DTIC Science & Technology

1984-03-16

Washington, D.C. ,y lC N:..-,., ~~ AR 1 5 S :.,. March 15-16, 1984 A 6 ;4 C 3 4 H 040 PRESENTATION ON DOD INDUSTRIAL RESPONSIVENESS SIMULATION ADPA...the early days of the Korean War and has served the country well in meeting crisis situations since then. Prominently at stake in the coming days are ...oceans are 367 Soviet submarines, according to the U.S. Navy, and there is no assurance that sealanes will not be seriously threatened. * Speaking of "nuts

Stennis Space Center goes to Washington Folklife Festival

NASA Image and Video Library

2008-07-03

Bryon Maynard (left), an aerospace technologist for Propulsion Systems & Tech in Stennis' Engineering and Science Directorate, uses a 'pocket rocket' to demonstrate the concept of rocket propulsion as part of NASA's exhibit at the Smithsonian Folklife Festival in Washington, D.C. Maynard is joined by Bradley Messer (right), chief of the Systems Engineering & Integration Division in Stennis' Engineering and Science Directorate, and a pair of exhibit visitors.

Stennis Space Center goes to Washington Folklife Festival

NASA Technical Reports Server (NTRS)

2008-01-01

Bryon Maynard (left), an aerospace technologist for Propulsion Systems & Tech in Stennis' Engineering and Science Directorate, uses a 'pocket rocket' to demonstrate the concept of rocket propulsion as part of NASA's exhibit at the Smithsonian Folklife Festival in Washington, D.C. Maynard is joined by Bradley Messer (right), chief of the Systems Engineering & Integration Division in Stennis' Engineering and Science Directorate, and a pair of exhibit visitors.

700 Honor ARC Pioneers and Founders at Gathering in Washington.

ERIC Educational Resources Information Center

Appalachia, 1985

1985-01-01

The Appalachian Regional Commission celebrated its 20th anniversary by honoring commission pioneers and founders at a Washington, DC, gathering. A new program aimed at lowering the region's school dropout rate was announced at the banquet. State plans and investment programs and a finish-up program accomplishments were approved at a business…

Washington: Symbol and City. An Educator's Guide to the Exhibit.

ERIC Educational Resources Information Center

Toby Levine Communications, Inc., Bethesda, MD.

Designed to make a visit to Washington, D.C. a successful learning experience for students by helping them understand the evolution of the city into what it is today, this teacher's guide presents themes and activities to accommodate many teaching and learning styles. Three sections of activities explore how the built environment symbolizes…

Advanced DC/DC Converters Towards Higher Volumetric Efficiencies For Space Applications

NASA Technical Reports Server (NTRS)

Shaw, Harry; Shue, Jack; Liu, David; Wang, Bright; Plante, Jeanette

2005-01-01

A new emphasis on planetary exploration by NASA drives the need for small, high power DC/DC converters which are functionally modular. NASA GSFC and other government space organizations are supporting technology development in the DC/DC converter area to both meet new needs and to promote more sources of supply. New technologies which enable miniaturization such as embedded passive technologies and thermal management using high thermal conductivity materials are features of the new designs. Construction of some simple DC/DC converter core circuits using embedded components was found to be successful for increasing volumetric efficiency to 37 W/inch. The embedded passives were also able to perform satisfactorily in this application in cryogenic temperatures.

5 CFR 591.220 - How does OPM calculate energy utility cost indexes?

Code of Federal Regulations, 2012 CFR

2012-01-01

... may vary from one COLA survey area to another, OPM compares the utility cost for the same size dwelling in the COLA survey area and the Washington, DC, area. (b) OPM applies the following six-step... and cooling plus all other household energy uses for the COLA survey area and the Washington, DC, area...

5 CFR 591.220 - How does OPM calculate energy utility cost indexes?

Code of Federal Regulations, 2013 CFR

2013-01-01

... may vary from one COLA survey area to another, OPM compares the utility cost for the same size dwelling in the COLA survey area and the Washington, DC, area. (b) OPM applies the following six-step... and cooling plus all other household energy uses for the COLA survey area and the Washington, DC, area...

5 CFR 591.220 - How does OPM calculate energy utility cost indexes?

Code of Federal Regulations, 2014 CFR

2014-01-01

... may vary from one COLA survey area to another, OPM compares the utility cost for the same size dwelling in the COLA survey area and the Washington, DC, area. (b) OPM applies the following six-step... and cooling plus all other household energy uses for the COLA survey area and the Washington, DC, area...

Working with Lecturers and Part-Time Faculty: A Case Study of Russian in the National Capital Area.

ERIC Educational Resources Information Center

Robin, Richard

This chapter examines the specific issues and problems of hiring part-time instructors for foreign language courses. Specifically, it discusses the part-time situation for teaching Russian in the Washington, DC area. It looks first at the major factors involved in hiring part-timers, particularly compared to graduate teaching assistants, commonly…

Historical changes to Lake Washington and route of the Lake Washington Ship Canal, King County, Washington

USGS Publications Warehouse

Chrzastowski, Michael J.

1983-01-01

Lake Washington, in the midst of the greater Seattle metropolitan area of the Puget Sound region (fig. 1), is an exceptional commercial, recreational, and esthetic resource for the region . In the past 130 years, Lake Washington has been changed from a " wild " lake in a wilderness setting to a regulated lake surrounded by a growing metropolis--a transformation that provides an unusual opportunity to study changes to a lake's shoreline and hydrologic characteristics -resulting from urbanization.

KENNEDY SPACE CENTER, FLA. -- KSC management and other employees gather in the Center’s television studio to watch the address by President George W. Bush at NASA Headquarters in Washington, D.C., stating his goals for NASA’s new mission: Completing the International Space Station, retiring the Space Shuttle orbiters, developing a new crew exploration vehicle, and returning to the moon and beyond within the next two decades. Pres. Bush was welcomed by NASA Administrator Sean O’Keefe and Expedition 8 Commander Michael Foale, who greeted him from the International Space Station. Members of the Washington, D.C., audience included astronauts Eileen Collins, Ed Lu and Michael Lopez-Alegria, and former astronaut Gene Cernan.

NASA Image and Video Library

2004-01-14

KENNEDY SPACE CENTER, FLA. -- KSC management and other employees gather in the Center’s television studio to watch the address by President George W. Bush at NASA Headquarters in Washington, D.C., stating his goals for NASA’s new mission: Completing the International Space Station, retiring the Space Shuttle orbiters, developing a new crew exploration vehicle, and returning to the moon and beyond within the next two decades. Pres. Bush was welcomed by NASA Administrator Sean O’Keefe and Expedition 8 Commander Michael Foale, who greeted him from the International Space Station. Members of the Washington, D.C., audience included astronauts Eileen Collins, Ed Lu and Michael Lopez-Alegria, and former astronaut Gene Cernan.

Report of a workshop on nuclear forces and nonproliferation Woodrow Wilson international center for scholars, Washington, DC October 28, 2010

DOE Office of Scientific and Technical Information (OSTI.GOV)

Pilat, Joseph F

2010-12-08

A workshop sponsored by the Los Alamos National Laboratory in cooperation with the Woodrow Wilson International Center for Scholars was held at the Wilson Center in Washington, DC, on October 28, 2010. The workshop addressed evolving nuclear forces and their impacts on nonproliferation in the context of the new strategic environment, the Obama Administration's Nuclear Posture Review and the 2010 NPT Review Conference. The discussions reflected the importance of the NPR for defining the role of US nuclear forces in dealing with 21st century threats and providing guidance for National Nuclear Security Administration (NNSA) and Department of Defense (DoD) programsmore » and, for many but not all participants, highlighted its role in the successful outcome of the NPT RevCon. There was widespread support for the NPR and its role in developing the foundations for a sustainable nuclear-weapon program that addresses nuclear weapons, infrastructure and expertise in the broader nonproliferation, disarmament and international security contexts. However, some participants raised concerns about its implementation and its long-term effectiveness and sustainability.« less

Final report (2002-2004): Benthic macroinvertebrate communities of reconstructed freshwater tidal wetlands in the Anacostia River, Washington, D.C

USGS Publications Warehouse

Brittingham, K.D.; Hammerschlag, R.S.

2006-01-01

Considerable work has been conducted on the benthic communities of inland aquatic systems, but there remains a paucity of effort on freshwater tidal wetlands. This study characterized the benthic macroinvertebrate communities of recently reconstructed urban freshwater tidal wetlands along the Anacostia River in Washington, D.C. The focus of the study was on the two main areas of Kingman Marsh, which were reconstructed by the U.S. Army Corps of Engineers in 2000 using Anacostia dredge material. Populations from this 'new' marsh were compared to those of similarly reconstructed Kenilworth Marsh (1993) just one half mile upstream, the relic reference Dueling Creek Marsh in the upper Anacostia estuary and the outside reference Patuxent freshwater tidal marsh in an adjacent watershed. Benthic macro invertebrate organisms were collected using selected techniques for evaluation including the Ekman bottom grab sampler, sediment corer, D-net and Hester-Dendy sampler. Samples were collected at least seasonally from tidal channels, tidal mudflats, three vegetation/sediment zones (low, middle and high marsh), and pools over a 3-year period (late 2001-2004). The macroinvertebrate communities present at the marsh sites proved to be good indicators of disturbance and stress (Kingman Marsh), pollution, urban vs. rural location (Kenilworth and Patuxent), and similarities between reconstructed and remnant wetlands (Kenilworth and Dueling Creek). Macroinvertebrate density was significantly greater at Kingman Marsh than Kenilworth Marsh due to more numerous chironomids and oligochaetes. This may reflect an increase in unvegetated sediments at Kingman (even at elevations above natural mudflat) due to grazing pressure from over-abundant resident Canada geese. Unvegetated sediments yielded greater macroinvertebrate abundance but lower richness than vegetated marsh sites. Data collected from this study provides information on the extent that benthic macroinvertebrate communities can serve

33 CFR 165.1301 - Puget Sound and Adjacent Waters in Northwestern Washington-Regulated Navigation Area.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Puget Sound and Adjacent Waters... Areas Thirteenth Coast Guard District § 165.1301 Puget Sound and Adjacent Waters in Northwestern... northwestern Washington waters under the jurisdiction of the Captain of the Port, Puget Sound: Puget Sound...

The Role of Character Education in America's Schools. Hearing before the Subcommittee on Early Childhood, Youth and Families of the Committee on Education and the Workforce. House of Representatives, One Hundred Sixth Congress, Second Session (Washington, DC, March 1, 2000).

ERIC Educational Resources Information Center

Congress of the U.S., Washington, DC. House Committee on Education and the Workforce.

This publication covers the hearing held on March 1, 2000, in Washington, DC, before the Subcommittee on Early Childhood, Youth and Families of the Committee on Education and the Workforce of the House of Representatives on the role of character education in U.S. schools. The publication contains the following: "Statement of Mr. Michael N.…

Oversight Hearings on American Secondary Education. Hearings Before the Subcommittee on Elementary, Secondary, and Vocational Education of the Committee on Education and Labor, House of Representatives, Ninety-Sixth Congress, Second Session (Washington, D.C., January 23-24, February 5-7, 1980).

ERIC Educational Resources Information Center

Congress of the U.S., Washington, DC. House Committee on Education and Labor.

This is a report of oversight hearings held in Washington, D.C., on January 23 and 24 and February 5, 6, and 7, 1980, to provide the House of Representatives Subcommittee on Elementary, Secondary, and Vocational Education of the Committee of Education and Labor, with a general picture of the current state of American secondary education. The focus…

36 CFR 1254.14 - Are some procedures in regional archives and Presidential libraries different from those in the...

Code of Federal Regulations, 2012 CFR

2012-07-01

... regional archives and Presidential libraries different from those in the Washington, DC, area? 1254.14... procedures in regional archives and Presidential libraries different from those in the Washington, DC, area... regional director of archival operations or Presidential library director indicates, you must follow the...

36 CFR 1254.14 - Are some procedures in regional archives and Presidential libraries different from those in the...

Code of Federal Regulations, 2011 CFR

2011-07-01

... regional archives and Presidential libraries different from those in the Washington, DC, area? 1254.14... procedures in regional archives and Presidential libraries different from those in the Washington, DC, area... regional director of archival operations or Presidential library director indicates, you must follow the...

36 CFR 1254.14 - Are some procedures in regional archives and Presidential libraries different from those in the...

Code of Federal Regulations, 2010 CFR

2010-07-01

... regional archives and Presidential libraries different from those in the Washington, DC, area? 1254.14... procedures in regional archives and Presidential libraries different from those in the Washington, DC, area... regional director of archival operations or Presidential library director indicates, you must follow the...

36 CFR 1254.14 - Are some procedures in regional archives and Presidential libraries different from those in the...

Code of Federal Regulations, 2014 CFR

2014-07-01

... regional archives and Presidential libraries different from those in the Washington, DC, area? 1254.14... procedures in regional archives and Presidential libraries different from those in the Washington, DC, area... regional director of archival operations or Presidential library director indicates, you must follow the...

75 FR 18055 - Regulated Navigation Areas; Bars Along the Coasts of Oregon and Washington; Correction

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-09

... DEPARTMENT OF HOMELAND SECURITY Coast Guard 33 CFR Part 165 [Docket No. USCG-2008-1017] RIN 1625-AA11 Regulated Navigation Areas; Bars Along the Coasts of Oregon and Washington; Correction Correction In rule document 2010-4769 beginning on page 10687 in the issue of Tuesday, March 9, 2010, make the...

Fun D.C. Jobs for Physicists

DOE Office of Scientific and Technical Information (OSTI.GOV)

Clark Cully

2009-09-30

Physicists make valuable contributions in a wide variety of careers, including those in Washington. Many national challenges, including energy, innovation, and security, create a demand for technically-competent individuals across government. Clark will discuss some of the many programs in D.C. designed to attract the best and brightest minds, from grad-students to professors, from short-term assignments to whole new careers. These are great opportunities to use your expertise and enrich your knowledge of the broader scientific enterprise, all while serving society.

36 CFR § 1254.14 - Are some procedures in regional archives and Presidential libraries different from those in the...

Code of Federal Regulations, 2013 CFR

2013-07-01

... regional archives and Presidential libraries different from those in the Washington, DC, area? § 1254.14... procedures in regional archives and Presidential libraries different from those in the Washington, DC, area... regional director of archival operations or Presidential library director indicates, you must follow the...

14 CFR 93.331 - Purpose and applicability of this subpart.

Code of Federal Regulations, 2011 CFR

2011-01-01

... TRANSPORTATION (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Washington, DC... prescribes special air traffic rules for aircraft operating in the Washington, DC Metropolitan Area. Because identification and control of aircraft is required for reasons of national security, the areas described in this...

14 CFR 93.331 - Purpose and applicability of this subpart.

Code of Federal Regulations, 2010 CFR

2010-01-01

... TRANSPORTATION (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Washington, DC... prescribes special air traffic rules for aircraft operating in the Washington, DC Metropolitan Area. Because identification and control of aircraft is required for reasons of national security, the areas described in this...

Science meets public service in Washington, D.C.

NASA Astrophysics Data System (ADS)

Vasavada, Ashwin R.

Same planet, different worlds—that's how many scientists see the relationship between science and government. Yet science and technology have become so infused into society that those worlds are colliding. Today, a number of national issues share a strong connection to science, from stem cells to climate change and energy to bioterrorism. For scientists who can adapt to the culture of politics, working in the collision zone can be an exciting and rewarding way to spend a year or even a career.This past year, I was one of 35 scientists in Washington serving as Congressional Science and Technology Fellows, sponsored by a number of scientific societies, including AGU. The Fellows vary widely in age and carry resumes listing Ph.D.s in not only physics, biology, and chemistry but also in Earth science, food safety, psychology, and veterinary medicine. With a group like that, weekly lunches and happy hours become the kind of broadening experience that one rarely gets in focused academic departments. And then there's the politics.

Traveltime and dispersion in the Potomac River, Cumberland, Maryland, to Washington, D.C.

USGS Publications Warehouse

Taylor, Kenneth R.; James, Robert W.; Helinsky, Bernard M.

1985-01-01

A travel-time and dispersion study using rhodamine dye was conducted on the Potomac River between Cumberland, Maryland, and Washington, D.C., a distance of 189 miles. The flow during the study was at approximately the 90-percent flow-duration level. A similar study was conducted by Wilson and Forrest in 1964 at a flow duration of approximately 60 percent. The two sets of data were used to develop a generalized procedure for predicting travel-times and downstream concentrations resulting from spillage of water-soluble substances at any point along the river. The procedure will allow the user to calculate travel-time and concentration data for almost any spillage problem that occurs during periods of relatively steady flow between 50- and 95-percent flow duration. A new procedure for calculating unit peak concentration was derived. The new procedure depends on an analogy between a time-concentration curve and a scalene triangle. As a result of this analogy, the unit peak concentration can be expressed in terms of the length of the _lye or contaminant cloud. The new procedure facilitates the calculation of unit peak concentration for long reaches of river. Previously, there was no way to link unit peak concentration curves for studies in which the river was divided into subreaches for study. Variable dispersive characteristics caused mainly by low-head dams precluded useful extrapolation of the unit peak-concentration attenuation curves, as has been done in previous studies. The procedure is applied to a hypothetical situation in which 20,000 pounds of contaminant is spilled at a railroad crossing at Magnolia, West Virginia. The times required for the leading edge, the peak concentration, and the trailing edge of the contaminant cloud to reach Point of Rocks, Maryland (110 river miles downstream), are 295, 375, and 540 hours respectively, during a period when flow is at the 80-percent flow-duration level. The peak conservative concentration would be approximately 340

Education Technology Programs Authorized under the Elementary and Secondary Education Act (ESEA). Hearing before the Subcommittee on Early Childhood, Youth and Families of the Committee on Education and the Workforce. House of Representatives, One Hundred Sixth Congress, First Session (Washington, DC, May 11, 1999).

ERIC Educational Resources Information Center

Congress of the U.S., Washington, DC. House Committee on Education and the Workforce.

This document represents the second hearing before the Subcommittee on Early Childhood, Youth and Families, held in Washington, DC on May 11, 1999 on the education technology programs authorized under the Elementary and Secondary Education Act (ESEA). Michael Castle, Chairman of the Subcommittee on Early Childhood, Youth and Families, Committee on…

A Historical Summary of the Work of the Corps of Engineers in Washington D.C. and Vicinity 1852 - 1952

DTIC Science & Technology

1952-01-01

built , and all land in Maryland needed for the conduit had been condemned . A first-class sand- stone quarry at Seneca , seven miles above Great Falls...constructed of Seneca Creek freestone obtained from the Bull Run quarry about twenty-three miles from Washington o By 1852 ~ the work was completed 9 except...pro- vided funds for an arsenal. Tragedy stalked the area in the ensuin8 years. In 1814, the arsenal was destroyed by the British, who lost

Raptors of the Hanford Site and nearby areas of southcentral Washington

DOE Office of Scientific and Technical Information (OSTI.GOV)

Fitzner, R.E.; Rickard, W.H.; Cadwell, L.L.

1981-05-01

This report is concerned with the birds of prey which use the Hanford Site not only during the nesting season but throughout the year. An ecological treatment of five nesting owls (great horned, long-eared, short-eared, barn and burrowing) and five nesting hawks (marsh hawk, red-tailed hawk, Swainson's hawk, prairie falcon and American kestrel) is provided and supportive information on non-nesting species is presented. Factors which control raptor densities and population dynamics throughout all seasons of the year are discussed. Information is also provided for raptors from other areas of southcentral Washington in order to yield a comprehensive picture of howmore » the Hanford Site fits in with regional bird of prey populations. The following were the objectives of this study: (1) to determine the numbers of birds of prey nesting on the Hanford Site, (2) to document the reproductive chronology of each nesting raptor species, (3) to provide analyses of food habits of birds of prey on the Hanford Site coupled with prey abundance data, (4) to determine the productivity of the dominant large birds of prey on the Hanford Site, (5) to determine the distribution and land use patterns of all raptors on the Hanford Site, (6) to determine the kinds and relative abundance of non-nesting raptors on the Hanford Site and adjacent areas of southcentral Washington (7) to document present land use practices on the Hanford Site and their effects on raptors, (8) to document radionuclide levels in birds of prey on the Hanford Site, and (9) to determine the role of birds of prey in radioecological monitoring.« less

Chi Ka Sha Goes to Washington: Chickasaw Narratives on the NMAI

ERIC Educational Resources Information Center

Hinson, Joshua Don

2005-01-01

This narrative describes the author's visit to Washington DC to attend the opening of the National Museum of the American Indian (NMAI). As a member of the Chickasaw, the author pondered what he would find in the museum that would represent the Chickasaw Nation. Would the museum reflect his people in all their diversity? Would he see something of…

77 FR 1411 - Approval and Promulgation of Air Quality Implementation Plans; District of Columbia, Maryland...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-01-10

...; Determinations of Attainment of the 1997 Fine Particle Standard for the Metropolitan Washington, DC-MD-VA and...-Maryland-Virginia (DC-MD-VA) fine particle (PM 2.5 ) nonattainment area and the Martinsburg-Hagerstown... determined that the Metropolitan Washington, District of Columbia-Maryland-Virginia (DC-MD-VA) fine particle...

CEE in DC: Tracings of a Conference Experiment and the Questions They Raise.

ERIC Educational Resources Information Center

Christenbury, Leila; Newman, Judith M.

1993-01-01

Describes the changes made in the traditional structure of the conference format as instituted at the 1992 Conference on English Education in Washington, DC. Outlines the methods by which feedback and criticism by participants were solicited, analyzed, and evaluated. Discusses conclusions based on the data gathered. (HB)

A Small College Is Rescued and Its Professors End Up Unemployed: Mount Vernon Faculty Members Sue over a Takeover by George Washington U.

ERIC Educational Resources Information Center

Smallwood, Scott

2001-01-01

Describes the breach-of-contract lawsuit brought by former faculty members at Mount Vernon College, Washington, DC, as a result of the takeover of the small college for women by George Washington University, which resulted in the closing of Mount Vernon and the dismissal of its faculty. (SLD)

Distribution of trace metals in the vicinity of a wastewater treatment plant on the Potomac River, Washington, DC, USA

NASA Astrophysics Data System (ADS)

Smith, J. P.; Muller, A. C.

2013-05-01

Predicting the fate and distribution of anthropogenic-sourced trace metals in riverine and estuarine systems is challenging due to multiple and varying source functions and dynamic physiochemical conditions. Between July 2011 and November 2012, sediment and water column samples were collected from over 20 sites in the tidal-fresh Potomac River estuary, Washington, DC near the outfall of the Blue Plains Advanced Wastewater Treatment Plant (BPWTP) for measurement of select trace metals. Field observations of water column parameters (conductivity, temperature, pH, turbidity) were also made at each sampling site. Trace metal concentrations were normalized to the "background" composition of the river determined from control sites in order to investigate the distribution BPWTP-sourced in local Potomac River receiving waters. Temporal differences in the observed distribution of trace metals were attributed to changes in the relative contribution of metals from different sources (wastewater, riverine, other) coupled with differences in the physiochemical conditions of the water column. Results show that normalizing near-source concentrations to the background composition of the water body and also to key environmental parameters can aid in predicting the fate and distribution of anthropogenic-sourced trace metals in dynamic riverine and estuarine systems like the tidal-fresh Potomac River.

A Field Investigation of Bacillus anthracis Contamination of U.S. Department of Agriculture and Other Washington, D.C., Buildings during the Anthrax Attack of October 2001

PubMed Central

Higgins, James A.; Cooper, Mary; Schroeder-Tucker, Linda; Black, Scott; Miller, David; Karns, Jeffrey S.; Manthey, Erlynn; Breeze, Roger; Perdue, Michael L.

2003-01-01

In response to a bioterrorism attack in the Washington, D.C., area in October 2001, a mobile laboratory (ML) was set up in the city to conduct rapid molecular tests on environmental samples for the presence of Bacillus anthracis spores and to route samples for further culture analysis. The ML contained class I laminar-flow hoods, a portable autoclave, two portable real-time PCR devices (Ruggedized Advanced Pathogen Identification Device [RAPID]), and miscellaneous supplies and equipment to process samples. Envelopes and swab and air samples collected from 30 locations in the metropolitan area once every three days were subjected to visual examination and DNA extraction, followed by real-time PCR using freeze-dried, fluorescent-probe-based reagents. Surface swabs and air samples were also cultured for B. anthracis at the National Veterinary Service Laboratory (NVSL) in Ames, Iowa. From 24 October 2001 to 15 September 2002, 2,092 pieces of mail were examined, 405 real-time PCR assays were performed (comprising 4,639 samples), and at the NVSL 6,275 samples were subjected to over 18,000 platings. None of the PCR assays on DNA extracted from swab and air samples were positive, but viable spores were cultured from surface swabs taken from six locations in the metropolitan area in October, November, and December 2001 and February, March, and May 2002. DNA extracted from these suspected B. anthracis colonies was positive by real-time and conventional PCRs for the lethal factor, pXO1, and for capA and vrr genes; sequence analysis of the latter amplicons indicated >99% homology with the Ames, vollum, B6273-93, C93022281, and W-21 strains of B. anthracis, suggesting they arose from cross-contamination during the attack through the mail. The RAPID-based PCR analysis provided fast confirmation of suspect colonies from an overnight incubation on agar plates. PMID:12514046

Carrier Battle Group (CVBG) Homeporting in the Puget Sound Area, Washington State. Technical Appendices.

DTIC Science & Technology

1986-11-01

whales , sei whales , sperm whales and leatherback sea turtles within t e inland waters of Puget Sound clearly indicates that the...AL)-A175 114 CARRIER BATTLE GROUP CCVBG) HOKEPORTING In THE PUGET In SOUND AREA WASHINGTON STATE TECHNICAL APPENDICESeu) CORPS OF ENGINEERS SEATTLE...34 , ,’ ’, ’ , % ". ". ", ." , , -,, ". ", . ,,, ’. .. ". -"’. -".’-".’,. Final Supplemental to U.S. Navy/ Environmental Impact Statement Carrier Battle Group

Improving Health, Social Welfare, and Human Development Through Women's Empowerment in Developing Countries: The 2016 Girl Up Leadership Summit, Washington, DC, USA.

PubMed

Mendoza, Janel

2016-01-01

The United Nations Foundation's Girl Up campaign, an initiative dedicated to promoting the health, education, and leadership of adolescent girls in developing communities around the world, hosted its annual Girl Up Leadership Summit in Washington, DC from July 11-13, 2016. The summit welcomed more than 275 girl empowerment and women empowerment proponents to take part in leadership training, listen to and learn from influential figures like United Nations Deputy High Commissioner for Human Rights Kate Gilmore and Treasurer of the United States Rosie Rios, as well as engage in an official lobby day in the nation's capital. Topics discussed at the summit ranged from the issue of child marriage and sexual and reproductive health rights to intersectional feminism and the importance of the next generation of global girl advocates. The purpose and, later on, achievement of the conference was the development of such leaders and Girl Up representatives. Summit attendee and Girl Up Campus Leader Janel Mendoza shares her experience as a longstanding Girl Up supporter and reflects on the preeminent conversations held during and following the summit.

Reproductive health knowledge among African American women enrolled in a clinic-based randomized controlled trial to reduce psychosocial and behavioral risk, Project DC-HOPE

PubMed Central

Backonja, Uba; Robledo, Candace A.; Wallace, Maeve E.; Flores, Katrina F.; Kiely, Michele

2016-01-01

Background Washington, D.C. has among the highest rates of sexually transmitted infections (STIs) and unintended pregnancy in the United States. Increasing women’s reproductive health knowledge may help address these reproductive health issues. This analysis assessed whether high-risk pregnant African American women in Washington, D.C. who participated in an intervention to reduce behavioral and psychosocial risks had greater reproductive health knowledge than women receiving usual care. Methods Project DC-HOPE was a randomized controlled trial that included pregnant African American women in Washington, D.C., recruited during prenatal care. Women in the intervention group were provided reproductive health education and received tailored counseling sessions to address their psychosocial and behavioral risk(s) (cigarette smoking, environmental tobacco smoke exposure, depression, and intimate partner violence). Women in the control group received usual prenatal care. Participants completed a 10-item reproductive knowledge assessment at baseline (n=1,044) and postpartum (n=830). Differences in total reproductive health knowledge scores at baseline and postpartum between groups were examined via chi-squared tests. Differences in postpartum mean total score by group were assessed via multiple linear regression. Results Women in both groups and at both time points scored approximately 50% on the knowledge assessments. At postpartum, women in the intervention group had higher total scores compared to women receiving usual care (mean 5.40 [SD 1.60] vs. 5.03 [SD 1.53] out of 10, respectively; p<0.001). Conclusions While intervention participants increased reproductive health knowledge, overall scores remained low. Development of interventions designed to impart accurate, individually tailored information to women may promote reproductive health knowledge among high-risk pregnant African American women residing in Washington, D.C. PMID:27094910

Development and testing of method for assessing and mapping agricultural areas susceptible to atrazine leaching in the state of Washington

USGS Publications Warehouse

Voss, Frank D.

2003-01-01

In a joint effort by the Washington State Department of Agriculture, the Washington Department of Ecology, and the U.S. Geological Survey, the Environmental Protection Agency's Pesticide Root Zone Model and a Geographic Information System were used to develop and test a method for screening and mapping the susceptibility of ground water in agricultural areas to pesticide contamination. The objective was to produce a map that would be used by the Washington State Department of Agriculture to allocate resources for monitoring pesticide levels in ground water. The method was tested by producing a map showing susceptibility to leaching of the pesticide atrazine for the Columbia Basin Irrigation Project, which encompasses an area of intensive agriculture in eastern Washington. The reliability of the atrazine map was assessed by using statistical procedures to determine whether the median of the percentage of atrazine simulated to leach below the root zone in wells where atrazine was detected was statistically greater than the median percentage at wells where atrazine was not detected (at or above 0.001 microgram per liter) in 134 wells sampled by the U.S. Geological Survey. A statistical difference in medians was not found when all 134 wells were compared. However, a statistical difference was found in medians for two subsets of the 134 wells that were used in land-use studies (studies examining the quality of ground water beneath specific crops). The statistical results from wells from the land-use studies indicate that the model potentially can be used to map the relative susceptibility of agricultural areas to atrazine leaching. However, the distinction between areas of high and low susceptibility may not yet be sufficient to use the method for allocating resources to monitor water quality. Several options are offered for improving the reliability of future simulations.

Population Dynamics and Production of the Amphipod Corophium salmonis in Grays Harbor, Washington,

DTIC Science & Technology

1981-09-01

biomass ratios of bivalve and gastropod population in an eastern Canadian estuary. J. Fish. Res. Bd. Can. 31: 167-177. Casablanca, M. -L., de. 1975...analysis was adapted from "Standards Methods for the Examination of Water and Wastewater," 14th Edition, APHA, AWWA, and WPCF, Washington, D.C., 1975, pp

1979-1980 Geothermal Resource Assessment Program in Washington

DOE Office of Scientific and Technical Information (OSTI.GOV)

Korosec, M.A.; Schuster, J.E.

1980-01-01

Separate abstracts were prepared for seven papers. Also included are a bibliography of geothermal resource information for the State of Washington, well temperature information and locations in the State of Washington, and a map of the geology of the White Pass-Tumac Mountain Area, Washington. (MHR)

Testimony by J. William Currie, Ph.D Manager, Energy Systems Modernization Office, Battelle, Pacific Northwest Laboratories before The Senate Committee on Governmental Affairs Washington D.C.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Currie, J.W.

1992-02-18

This report consists of the testimony by J. William Currie, Manager, Energy Systems Modernization Office, Battelle, Pacific Northwest Laboratories before The Senate Committee on Governmental Affairs, Washington, DC on February 18, 1992. He states ``It is a pleasure to have the opportunity to talk with this distinguished committee about energy conservation technologies and policies, especially as they relate to federal energy use and the commercialization of energy-efficiency technologies. Clearly, using energy more efficiently offers the potential for tremendous cost savings and environmental benefits in the United States and throughout the rest of the world. The challenge, especially with regard tomore » the federal sector, is to lay the foundation for ensuring that the citizens of our nation realize the maximum savings and environmental benefit over the long run. This is the primary focus of my comments today.``« less

The Effectiveness of the Improved NaHPO4-SnF2-ZrSiO4-SiO2 Prophylactic Paste.

DTIC Science & Technology

1976-03-01

C-1119 Howard University -College of Dentistry Research Washington, DC 20001 DOD DISTRIBUTION STATEMENT Approved for public release; distribution...AORESS 10. PROGRAM ELEMENT. PROJECT. TASK Howard University AREA 6 WORK UNIT NUMBERS College of Dentistry Research Washington, DC 20001 1I. CONTROLLING

Test Results of Selected Commercial DC/DC Converters under Cryogenic Temperatures - A Digest

NASA Technical Reports Server (NTRS)

Patterson, Richard; Hammoud, Ahmad

2010-01-01

DC/DC converters are widely used in space power systems in the areas of power management and distribution, signal conditioning, and motor control. Design of DC/DC converters to survive cryogenic temperatures will improve the power system performance, simplify design, and reduce development and launch costs. In this work, the performance of nine COTS modular, low-tomedium power DC/DC converters was investigated under cryogenic temperatures. The converters were evaluated in terms of their output regulation, efficiency, and input and output currents. At a given temperature, these properties were obtained at various input voltages and at different load levels. A summary on the performance of the tested converters was given. More comprehensive testing and in-depth analysis of performance under long-term exposure to extreme temperatures are deemed necessary to establish the suitability of these and other devices for use in the harsh environment of space exploration missions.

Improving Health, Social Welfare, and Human Development Through Women’s Empowerment in Developing Countries: The 2016 Girl Up Leadership Summit, Washington, DC, USA

PubMed Central

Mendoza, Janel

2016-01-01

The United Nations Foundation’s Girl Up campaign, an initiative dedicated to promoting the health, education, and leadership of adolescent girls in developing communities around the world, hosted its annual Girl Up Leadership Summit in Washington, DC from July 11-13, 2016. The summit welcomed more than 275 girl empowerment and women empowerment proponents to take part in leadership training, listen to and learn from influential figures like United Nations Deputy High Commissioner for Human Rights Kate Gilmore and Treasurer of the United States Rosie Rios, as well as engage in an official lobby day in the nation’s capital. Topics discussed at the summit ranged from the issue of child marriage and sexual and reproductive health rights to intersectional feminism and the importance of the next generation of global girl advocates. The purpose and, later on, achievement of the conference was the development of such leaders and Girl Up representatives. Summit attendee and Girl Up Campus Leader Janel Mendoza shares her experience as a longstanding Girl Up supporter and reflects on the preeminent conversations held during and following the summit. PMID:28058195

DC grid for home applications

NASA Astrophysics Data System (ADS)

Elangovan, D.; Archana, R.; Jayadeep, V. J.; Nithin, M.; Arunkumar, G.

2017-11-01

More than fifty percent Indian population do not have access to electricity in daily lives. The distance between the power generating stations and the distribution centers forms one of the main reasons for lack of electrification in rural and remote areas. Here lies the importance of decentralization of power generation through renewable energy resources. In the present world, electricity is predominantly powered by alternating current, but most day to day devices like LED lamps, computers and electrical vehicles, all run on DC power. By directly supplying DC to these loads, the number of power conversion stages was reduced, and overall system efficiency increases. Replacing existing AC network with DC is a humongous task, but with power electronic techniques, this project intends to implement DC grid at a household level in remote and rural areas. Proposed work was designed and simulated successfully for various loads amounting to 250 W through appropriate power electronic convertors. Maximum utilization of the renewable sources for domestic and commercial application was achieved with the proposed DC topology.

Bidirectional DC/DC Converter

NASA Astrophysics Data System (ADS)

Pedersen, F.

2008-09-01

The presented bidirectional DC/DC converter design concept is a further development of an already existing converter used for low battery voltage operation.For low battery voltage operation a high efficient low parts count DC/DC converter was developed, and used in a satellite for the battery charge and battery discharge function.The converter consists in a bidirectional, non regulating DC/DC converter connected to a discharge regulating Buck converter and a charge regulating Buck converter.The Bidirectional non regulating DC/DC converter performs with relatively high efficiency even at relatively high currents, which here means up to 35Amps.This performance was obtained through the use of power MOSFET's with on- resistances of only a few mille Ohms connected to a special transformer allowing paralleling several transistor stages on the low voltage side of the transformer. The design is patent protected. Synchronous rectification leads to high efficiency at the low battery voltages considered, which was in the range 2,7- 4,3 Volt DC.The converter performs with low switching losses as zero voltage zero current switching is implemented in all switching positions of the converter.Now, the drive power needed, to switch a relatively large number of low Ohm , hence high drive capacitance, power MOSFET's using conventional drive techniques would limit the overall conversion efficiency.Therefore a resonant drive consuming considerable less power than a conventional drive circuit was implemented in the converter.To the originally built and patent protected bidirectional non regulating DC/DC converter, is added the functionality of regulation.Hereby the need for additional converter stages in form of a Charge Buck regulator and a Discharge Buck regulator is eliminated.The bidirectional DC/DC converter can be used in connection with batteries, motors, etc, where the bidirectional feature, simple design and high performance may be useful.

A new differential absorption lidar to measure sub-hourly fluctuation of tropospheric ozone profiles in the Baltimore-Washington DC region

NASA Astrophysics Data System (ADS)

Sullivan, J. T.; McGee, T. J.; Sumnicht, G. K.; Twigg, L. W.; Hoff, R. M.

2014-04-01

Tropospheric ozone profiles have been retrieved from the new ground based National Aeronautics and Space Administration (NASA) Goddard Space Flight Center TROPospheric OZone DIfferential Absorption Lidar (GSFC TROPOZ DIAL) in Greenbelt, MD (38.99° N, 76.84° W, 57 m a.s.l.) from 400 m to 12 km a.g.l. Current atmospheric satellite instruments cannot peer through the optically thick stratospheric ozone layer to remotely sense boundary layer tropospheric ozone. In order to monitor this lower ozone more effectively, the Tropospheric Ozone Lidar Network (TOLNet) has been developed, which currently consists of five stations across the US. The GSFC TROPOZ DIAL is based on the Differential Absorption Lidar (DIAL) technique, which currently detects two wavelengths, 289 and 299 nm. Ozone is absorbed more strongly at 289 nm than at 299 nm. The DIAL technique exploits this difference between the returned backscatter signals to obtain the ozone number density as a function of altitude. The transmitted wavelengths are generated by focusing the output of a quadrupled Nd:YAG laser beam (266 nm) into a pair of Raman cells, filled with high pressure hydrogen and deuterium. Stimulated Raman Scattering (SRS) within the focus generates a significant fraction of the pump energy at the first Stokes shift. With the knowledge of the ozone absorption coefficient at these two wavelengths, the range resolved number density can be derived. An interesting atmospheric case study involving the Stratospheric-Tropospheric Exchange (STE) of ozone is shown to emphasize the regional importance of this instrument as well as assessing the validation and calibration of data. The retrieval yields an uncertainty of 16-19% from 0-1.5 km, 10-18% from 1.5-3 km, and 11-25% from 3 km to 12 km. There are currently surface ozone measurements hourly and ozonesonde launches occasionally, but this system will be the first to make routine tropospheric ozone profile measurements in the Baltimore-Washington DC area.

Pesticides in groundwater in the Anacostia River and Rock Creek watersheds in Washington, D.C., 2005 and 2008

USGS Publications Warehouse

Koterba, Michael T.; Dieter, Cheryl A.; Miller, Cherie V.

2010-01-01

The U.S. Geological Survey (USGS), in cooperation with the District Department of the Environment, conducted a groundwater-quality investigation to (a) determine the presence, concentrations, and distribution of selected pesticides in groundwater, and (b) assess the presence of pesticides in groundwater in relation to selected landscape, hydrogeologic, and groundwater-quality characteristics in the shallow groundwater underlying the Anacostia River and Rock Creek watersheds in Washington, D.C. With one exception, well depths were 100 feet or less below land surface. The USGS obtained or compiled ancillary data and information on land use (2001), subsurface sediments, and groundwater samples from 17 wells in the lower Anacostia River watershed from September through December 2005, and from 14 wells in the lower Anacostia River and lower Rock Creek watersheds from August through September 2008. Twenty-seven pesticide compounds, reflecting at least 19 different types of pesticides, were detected in the groundwater samples obtained in 2005 and 2008. No fungicides were detected. In relation to the pesticides detected, degradate compounds were as or more likely to be detected than applied (parent) compounds. The detected pesticides chiefly reflected herbicides commonly used in urban settings for non-specific weed control or insecticides used for nonspecific haustellate insects (insects with specialized mouthparts for sucking liquid) or termite-specific control. Detected pesticides included a combination of pesticides currently (2008) in use, banned or under highly restricted use, and some that had replaced the banned or restricted-use pesticides. The presence of banned and restricted-use pesticides illustrates their continued persistence and resistance to complete degradation in the environment. The presence of the replacement pesticides indicates the susceptibility of the surficial aquifer to contamination irrespective of the changes in the pesticides used. A

Modeling the Mental Health Workforce in Washington State: Using State Licensing Data to Examine Provider Supply in Rural and Urban Areas

ERIC Educational Resources Information Center

Baldwin, Laura-Mae; Patanian, Miriam M.; Larson, Eric H.; Lishner, Denise M.; Mauksch, Larry B.; Katon, Wayne J.; Walker, Edward; Hart, L. Gary

2006-01-01

Context: Ensuring an adequate mental health provider supply in rural and urban areas requires accessible methods of identifying provider types, practice locations, and practice productivity. Purpose: To identify mental health shortage areas using existing licensing and survey data. Methods: The 1998-1999 Washington State Department of Health files…

USING THE SEDIMENT QUALITY TRIAD (SQT) APPROACH TO ASSESS SEDIMENTARY CONTAMINATION IN THE ANACOSTIA RIVER, WASHINGTON

EPA Science Inventory

Using the Sediment Quality Triad (SQT) Approach to Assess Sedimentary Contamination in the Anacostia River, Washington, D.C. Velinsky, DJ*1, Ashley, JTF1,2, Pinkney, F.3, McGee, BL3 and Norberg-King, TJ.4 1Academy of Natural Sciences-PCER, Philadelphia, PA. 2Philadelphia Universi...

77 FR 46118 - Notice of Inventory Completion: Department of the Interior, Bureau of Indian Affairs, Washington...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-08-02

... Inventory Completion: Department of the Interior, Bureau of Indian Affairs, Washington, DC, and Logan Museum.... SUMMARY: The U.S. Department of the Interior, Bureau of Indian Affairs, and Logan Museum of Anthropology... address below by September 4, 2012. ADDRESSES: Anna Pardo, Museum Program Manager/NAGPRA Coordinator, U.S...

77 FR 24181 - Submission for OMB Review; Comment Request

Federal Register 2010, 2011, 2012, 2013, 2014

2012-04-23

... (Attention: PRA Office), 1700 G Street NW., Washington, DC 20552: (202) 435-7741: [email protected], (Attention: Joseph Durbala, PRA Office) 1700 G Street NW., Washington, DC 20552, or through the internet at... practices that occur in the mortgage advertising area. To gauge whether covered persons are complying with...

Water quality, sediment quality, and stream-channel classification of Rock Creek, Washington, D.C., 1999-2000

USGS Publications Warehouse

Anderson, Anita L.; Miller, Cherie V.; Olsen, Lisa D.; Doheny, Edward J.; Phelan, Daniel J.

2002-01-01

Rock Creek Park is within the National Capital Region in Washington, D.C., and is maintained by the National Park Service. Part of Montgomery County, Maryland, and part of the District of Columbia drain into Rock Creek, which is a tributary of the Potomac River. Water quality in Rock Creek is important to biotic life in and near the creek, and in the Potomac River Basin and the Chesapeake Bay. The water quality of the Rock Creek Basin has been affected by continued urban and agricultural growth and development. The U.S. Geological Survey, in cooperation with the National Park Service, investigated water quality and sediment quality in Rock Creek over a 2-year period (1998?2000), and performed a stream-channel classification to determine the distribution of bottom sediment in Rock Creek. This report presents and evaluates water quality and bottom sediment in Rock Creek for water years 1999 (October 1, 1998 to September 30, 1999) and 2000 (October 1, 1999 to September 30, 2000). A synoptic surface-water assessment was conducted at five stations from June 23 to June 25, 1999, a temporal surface-water assessment was conducted at one station from February 18, 1999 to September 26, 2000, and bed-sediment samples were collected and assessed from three stations from August 17 to August 19, 1999. The synoptic surface-water assessment included pesticides (parent compounds and selected transformation products), field parameters, nutrients, and major ions. The temporal surface-water assessment included pesticides (parent compounds and selected transformation products) and field parameters. The bed-sediment assessment included trace elements and organic compounds (including low- and high-molecular weight polycyclic aromatic hydrocarbons, poly-chlorinated biphenyls, pesticides, and phthalates). Some, but not all, of the pesticides known to be used in the area were included in the synoptic water-quality assessment, the temporal water-quality assessment, and the bed

Conference on Workforce Quality Assessment Held in Washington, DC on 8 May 1989

DTIC Science & Technology

1989-09-01

of Education Statistics Sar Levitan, Director Department of Education Center for Social Policy Studies George Washington University Michael G. Hansen...wO. it’" Merit Systems Protection Board Office of Personnel Management A Federal Government which is staffed by well qualified and motivated ...long been national policy to provide for a merit-based civil service system. The question of whether we have met the objective of a well qualified

Abundance of Apple Maggot, Rhagoletis pomonella, Across Different Areas in Central Washington, with Special Reference to Black-Fruited Hawthorns

PubMed Central

Yee, Wee L.; Klaus, Michael W.; Cha, Dong H.; Linn, Charles E.; Goughnour, Robert B.

2012-01-01

The apple maggot fly, Rhagoletis pomonella (Walsh) (Diptera: Tephritidae), infests non-commercial apple (Malus domestica (Borkh.) Borkh.) and native black-fruited hawthorns (mostly Crataegus douglasii Lindl.) in central Washington, but little has been published on the abundance of the fly in this region. In this paper, the abundance of R. pomonella across different sites near apple-growing areas in central Washington is documented in order to assess the threat of the fly to commercial apple orchards. The fly was first detected on traps in Klickitat, Yakima, and Kittitas Counties in 1981, 1995, and 1997, respectively. From 1981–2010 in Kittitas and Yakima Counties, only 0 to 4.7% of traps on apple, crabapple, and hawthorn trees were positive for flies, whereas in Klickitat County, located farther from commercial apple orchards, 0 to 41.9% of traps were positive. In 2008, in Yakima County and Goldendale in Klickitat County, 7.8% of black-fruited hawthorn trees were infested, with 0 to 0.00054 larvae per fruit. In 2010, in Kittitas and Yakima Counties and Goldendale in Klickitat County, 25.0% of C. douglasii trees were infested, with 0.00042 to 0.00248 larvae per fruit. In 2010, in a remote forested area of Klickitat County far from commercial apple orchards, 94.7% of C. douglasii trees were infested, with 0.20813 larvae per fruit. Overall results suggest R. pomonella is unlikely to develop high populations rapidly near major commercial apple-growing areas in central Washington, including in black-fruited hawthorns, increasing chances it can be kept out of commercial orchards. PMID:23451979

Transport of dissolved and suspended material by the Potomac River at Chain Bridge, at Washington, D.C., water years 1978-81

USGS Publications Warehouse

Blanchard, Stephen F.; Hahl, D.C.

1987-01-01

The measuring station Potomac River at Chain Bridge at Washington, D.C., is located at the upstream end of the tidal Potomac River. Water-quality data were collected intensively at this site from December 1977 through September 1981 as part of a study of the tidal Potomac River and Estuary. Analysis of water-discharge data from the long-term gage at Little Falls, just up stream from Chain Bridge, shows that streamflow for the 1979-81 water years had characteristics similar to the 51-year average discharge (1931-81). Loads were computed for various forms of phosphorus and nitrogen, major cations and anions, silica, biochemical oxygen demand, chlorophyll a and pheophytin, and suspended sediment. Load duration curves for the 1979-81 water years show that 50 percent of the time, water passing Chain Bridge carried at least 28 metric tons per day of total nitrogen, 1.0 metric tons per day of total phosphorus, 70 metric tons per day of silica, and 270 metric tons per day of suspended sediment. No consistent seasonal change in constituent concentrations was observed; however, a seasonal trend in loads due to seasonal changes in runoff was noted. Some storm runoff events transported as much dissolved and suspended material as is transported during an entire low-flow year.

The Influences of Geologic Depositional Environments on Sand Boil Development, Tara Wildlife Lodge Area in Mississippi

DTIC Science & Technology

2016-03-01

ER D C/ G SL T R- 16 -7 The Influences of Geologic Depositional Environments on Sand Boil Development, Tara Wildlife Lodge Area in...client/default. ERDC/GSL TR-16-7 March 2016 The Influences of Geologic Depositional Environments on Sand Boil Development, Tara Wildlife Lodge...Army Corps of Engineers Washington, DC 20314-1000 ERDC/GSL TR-16-7 ii Abstract A comprehensive study of the subsurface geology in the Tara Wildlife

The Economic Benefits of Reducing High School Dropout Rates in the Washington, DC Metro Area

ERIC Educational Resources Information Center

Alliance for Excellent Education, 2009

2009-01-01

In an effort to better understand the various economic benefits that a particular urban area could expect were it to reduce its number of high school dropouts, the Alliance for Excellent Education, has developed a sophisticated economic model in partnership with Economic Modeling Specialists Inc. The model allows various economic projections to be…

Aerosol composition and variability in the Baltimore-Washington, DC region

NASA Astrophysics Data System (ADS)

Beyersdorf, A. J.; Ziemba, L. D.; Chen, G.; Corr, C. A.; Crawford, J. H.; Diskin, G. S.; Moore, R. H.; Thornhill, K. L.; Winstead, E. L.; Anderson, B. E.

2015-08-01

In order to utilize satellite-based aerosol measurements for the determination of air quality, the relationship between aerosol optical properties (wavelength-dependent, column-integrated extinction measured by satellites) and mass measurements of aerosol loading (PM2.5 used for air quality monitoring) must be understood. This connection varies with many factors including those specific to the aerosol type, such as composition, size and hygroscopicity, and to the surrounding atmosphere, such as temperature, relative humidity (RH) and altitude, all of which can vary spatially and temporally. During the DISCOVER-AQ (Deriving Information on Surface conditions from Column and Vertically Resolved Observations Relevant to Air Quality) project, extensive in-situ atmospheric profiling in the Baltimore, MD-Washington, DC region was performed during fourteen flights in July 2011. Identical flight plans and profile locations throughout the project provide meaningful statistics for determining the variability in and correlations between aerosol loading, composition, optical properties and meteorological conditions. Measured water-soluble aerosol mass was composed primarily of ammonium sulfate (campaign average of 32 %) and organics (57 %). A distinct difference in composition was observed with high-loading days having a proportionally larger percentage of ammonium sulfate (up to 49 %) due to transport from the Ohio River Valley. This composition shift caused a change in the aerosol water-uptake potential (hygroscopicity) such that higher relative contributions of ammonium sulfate increased the bulk aerosol hygroscopicity. These days also tended to have higher relative humidity causing an increase in the water content of the aerosol. Conversely, low aerosol loading days had lower ammonium sulfate and higher black carbon contributions causing lower single scattering albedos (SSAs). The average black carbon concentrations were 240 ng m-3 in the lowest 1 km decreasing to 35 ng m-3

77 FR 42363 - Departmental Offices; Proposed Collection; Comment Request

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-18

...: Terrorism Risk Insurance Program, Public Comment Record, Suite 2100, Department of the Treasury, 1425 New York Ave. NW., Washington, DC 20220. Because paper mail in the Washington DC area may be subject to.... Treasury will require access to all books, documents, papers and records of an insurer that are pertinent...

Land Tenure Adjustment Project. Preliminary Draft Environmental Impact Statement/Report

DTIC Science & Technology

1987-04-16

southern California render the probability of major agricultural produrtion in the impact area unlikely. Extractive industry in the impact area is neither...American Indians, Vol. 8: California, ed. Robert F. Heizer . Smithsonian Institution, Washington, D.C. Bean, Lowell John, and Sylvia Brakke Vane. 1979...American Indians, Vol. 8: California, ed. Robert F. Heizer , pp. 567-569. Smithsonian Institution, Washington, D.C. LTA REVISION 2 B-2 California Air

49 CFR 1562.21 - Scope, general requirements, and definitions.

Code of Federal Regulations, 2011 CFR

2011-10-01

... WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for... to aircraft operations into or out of Ronald Reagan Washington National Airport (DCA), fixed base... not include an armed security officer. DCA means Ronald Reagan Washington National Airport. DASSP...

49 CFR 1562.21 - Scope, general requirements, and definitions.

Code of Federal Regulations, 2010 CFR

2010-10-01

... WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for... to aircraft operations into or out of Ronald Reagan Washington National Airport (DCA), fixed base... not include an armed security officer. DCA means Ronald Reagan Washington National Airport. DASSP...

A mobile differential absorption lidar to measure sub-hourly fluctuation of tropospheric ozone profiles in the Baltimore-Washington, D.C. region

NASA Astrophysics Data System (ADS)

Sullivan, J. T.; McGee, T. J.; Sumnicht, G. K.; Twigg, L. W.; Hoff, R. M.

2014-10-01

Tropospheric ozone profiles have been retrieved from the new ground-based National Aeronautics and Space Administration (NASA) Goddard Space Flight Center TROPospheric OZone DIfferential Absorption Lidar (GSFC TROPOZ DIAL) in Greenbelt, MD (38.99° N, 76.84° W, 57 m a.s.l.), from 400 m to 12 km a.g.l. Current atmospheric satellite instruments cannot peer through the optically thick stratospheric ozone layer to remotely sense boundary layer tropospheric ozone. In order to monitor this lower ozone more effectively, the Tropospheric Ozone Lidar Network (TOLNet) has been developed, which currently consists of five stations across the US. The GSFC TROPOZ DIAL is based on the DIAL technique, which currently detects two wavelengths, 289 and 299 nm, with multiple receivers. The transmitted wavelengths are generated by focusing the output of a quadrupled Nd:YAG laser beam (266 nm) into a pair of Raman cells, filled with high-pressure hydrogen and deuterium, using helium as buffer gas. With the knowledge of the ozone absorption coefficient at these two wavelengths, the range-resolved number density can be derived. An interesting atmospheric case study involving the stratospheric-tropospheric exchange (STE) of ozone is shown, to emphasize the regional importance of this instrument as well as to assess the validation and calibration of data. There was a low amount of aerosol aloft, and an iterative aerosol correction has been performed on the retrieved data, which resulted in less than a 3 ppb correction to the final ozone concentration. The retrieval yields an uncertainty of 16-19% from 0 to 1.5 km, 10-18% from 1.5 to 3 km, and 11-25% from 3 to 12 km according to the relevant aerosol concentration aloft. There are currently surface ozone measurements hourly and ozonesonde launches occasionally, but this system will be the first to make routine tropospheric ozone profile measurements in the Baltimore-Washington, D.C. area.

A New Differential Absorption Lidar to Measure Sub-Hourly Fluctuation of Tropospheric Ozone Profiles in the Baltimore - Washington D.C. Region

NASA Technical Reports Server (NTRS)

Sullivan, J. T.; McGee, T. J.; Sumnicht, G. K.; Twigg, L. W.; Hoff, R. M.

2014-01-01

DC area.

Comparison of Metabolic Syndrome Indicators in Two Samples of Central and South Americans Living in the Washington, D.C. Area in 1993-1994 and 2008-2009: Secular Changes in Metabolic Syndrome in Hispanics.

PubMed

Gill, Regina; Jackson, Robert T; Duane, Marguerite; Miner, Allison; Khan, Saira A

2017-08-05

The Central and South American populations are growing rapidly in the US; however, there is a paucity of information about their health status. Objectives : we estimated the prevalence of metabolic syndrome (MetS) and its individual components from two cohorts of Central and South Americans. Methods : This cross-sectional, medical record extraction survey sampled 1641 adults from a Washington, D.C clinic. A questionnaire was used to collect socio-demographic, medical history, anthropometric, biochemical, and clinical data. Results : among the 1993-1994 cohort, the MetS prevalence was 19.7%. The most prevalent MetS components were low high-density lipoprotein (HDL) cholesterol (40.4% men and 51.3% women), elevated triglycerides (40.9% men and 33.1% women), and high body mass index (BMI) ≥ 25 kg/m² (27.6% men and 36.6% women). The overall prevalence of MetS in the 2008-2009 cohort was 28%. The most common abnormal metabolic indicator was an elevated BMI ≥ 25 kg/m² (75.6%). 43.2% of men and 50.7% of women had HDL levels below normal, while the prevalence of hypertriglyceridemia was 46.5% and 32.5% for men and women, respectively. Conclusion : the prevalence of MetS was significantly greater in 2008-2009 compared with 1993-1994 ( p ≤ 0.05). Dyslipidemia and high BMI have increased. Although similar components were identified in both the 1993-1994 and 2008-2009 study populations, the risks of MetS have increased over time.

Adherence with physical activity monitoring wearable devices in a community-based population: observations from the Washington, D.C., Cardiovascular Health and Needs Assessment.

PubMed

Yingling, Leah R; Mitchell, Valerie; Ayers, Colby R; Peters-Lawrence, Marlene; Wallen, Gwenyth R; Brooks, Alyssa T; Troendle, James F; Adu-Brimpong, Joel; Thomas, Samantha; Henry, JaWanna; Saygbe, Johnetta N; Sampson, Dana M; Johnson, Allan A; Graham, Avis P; Graham, Lennox A; Wiley, Kenneth L; Powell-Wiley, Tiffany

2017-12-01

Wearable mobile health (mHealth) technologies offer approaches for targeting physical activity (PA) in resource-limited, community-based interventions. We sought to explore user characteristics of PA tracking, wearable technology among a community-based population within a health and needs assessment. In 2014-2015, we conducted the Washington, D.C., Cardiovascular Health and Needs Assessment in predominantly African-American churches among communities with higher obesity rates and lower household incomes. Participants received a mHealth PA monitor and wirelessly uploaded PA data weekly to church data collection hubs. Participants (n = 99) were 59 ± 12 years, 79% female, and 99% African-American, with a mean body mass index of 33 ± 7 kg/m 2 . Eighty-one percent of participants uploaded PA data to the hub and were termed "PA device users." Though PA device users were more likely to report lower household incomes, no differences existed between device users and non-users for device ownership or technology fluency. Findings suggest that mHealth systems with a wearable device and data collection hub may feasibly target PA in resource-limited communities.

Juvenile Salmonid and Baitfish Distribution, Abundance and Prey Resources in Selected Areas of Grays Harbor, Washington

DTIC Science & Technology

1981-09-01

in catches made in shallow, mud- and sandflat habitats (B. Stevens, College of Fisheries , Univ. Washington, personal communication ). Considering the...DOUGLAS M. EGGERSDIrbsoUnntd - M FISHERIES RESEARCH INSTITUTE UNIVERSITY OF WASHINGTON of ArmynCrs SEPTEMBER 1981 ~~t~ ~~i; - It - ’ .-J~ . SECURITY...TASK Fisheries Research INsti tute AE OKUI UBR University of Washington Seattle, Washington 98195 j Lni’ 11. CONTROLLING OFFICE NAME AND ADDRESS

Civil Tiltrotor Feasibility Study for the New York and Washington Terminal Areas

NASA Technical Reports Server (NTRS)

Stouffer, Virginia; Johnson, Jesse; Gribko, Joana; Yackovetsky, Robert (Technical Monitor)

2001-01-01

NASA tasked LMI to assess the potential contributions of a yet-undeveloped Civil Tiltrotor aircraft (CTR) in improving capacity in the National Airspace System in all weather conditions. The CTRs studied have assumed operating parameters beyond current CTR capabilities. LMI analyzed CTRs three ways: in fast-time terminal area modeling simulations of New York and Washington to determine delay and throughput impacts; in the Integrated Noise Model, to determine local environmental impact; and with an economic model, to determine the price viability of a CTR. The fast-time models encompassed a 250 nmi range and included traffic interactions from local airports. Both the fast-time simulation and the noise model assessed impacts from traffic levels projected for 1999, 2007, and 2017. Results: CTRs can reduce terminal area delays due to concrete congestion in all time frames. The maximum effect, the ratio of CTRs to jets and turboprop aircraft at a subject airport should be optimized. The economic model considered US traffic only and forecasted CTR sales beginning in 2010.

Geology and ground-water resources of Washington, D.C., and vicinity

USGS Publications Warehouse

Johnston, Paul McKelvey

1964-01-01

constructed. Bored or dug wells allow greater storage capacity and are satisfactory for domestic supplies in some locations, but they are polluted easily. If not properly constructed or of sufficient depth, they may fail in dry weather. Ground-water supplies for domestic use, 5 to 10 gpm (gallons per minute), are obtainable in most places. In the Piedmont, recorded yields in drilled wells range from 0.2 to 212 gpm. In the Coastal Plain, wells yield from 1 to 800 gpm. The quality of the ground water in the report area is generally satisfactory for domestic, industrial, and irrigation use. High iron content and corrosiveness are troublesome in places. The water is soft to moderately hard--2 to 175 ppm (parts per million). Water in the Piedmont province is. dominantly the calcium and bicarbonate type; in the Coastal Plain most water is of calcium-magnesium bicarbonate type. In the Piedmont, careful location of wells with respect to the geology (rock type and structure) and to topography usually results in higher yields and may mean the difference between success and failure. In the Coastal Plain, drilled artesian wells are not affected by topography, but the yield obtained depends upon the penetration of a water-bearing sand or gravel bed at sufficient depth. The early settlers obtained water from the springs and streams, and later from dug wells. After Washington was established as the Capital in 1800, water was obtained from public and privately owned wells. Water was piped from some of the springs to government buildings and to private homes and business houses. In 1863 a diversion dam was completed in the Potomac above Great Falls and a conduit was built into the city to furnish a public water supply. This system with modifications has been in use ever since. A new diversion dam and pumping station at Little Falls was put into service in the summer of 1959. In 1961 the total pumpage from Coastal Plain aquifers in the report area was estimate

Making School Choice Work for Families: DC School Reform Now's High Quality Schools Campaign

ERIC Educational Resources Information Center

Jochim, Ashley; Gross, Betheny; McCann, Colleen

2017-01-01

Washington, D.C., has looked to school choice as one way to improve educational outcomes for disadvantaged students. School choice attempts to "level the playing field" between students of different backgrounds by making it possible for all families to have access to a city's high-quality public schools--whether students live near these…

78 FR 24778 - Notice of Lodging of Proposed Consent Decree Under the Clean Water Act

Federal Register 2010, 2011, 2012, 2013, 2014

2013-04-26

..., Union Lake, and various lakes, bays, and streams in the Seattle area, as well as unpermitted discharges.... DOJ--ENRD, P.O. Box 7611, Washington, DC 20044-7611. During the public comment period, the proposed..., U.S. DOJ--ENRD, P.O. Box 7611, Washington, DC 20044- 7611. Please enclose a check or money order for...

Geologic Map of the North Cascade Range, Washington

USGS Publications Warehouse

Haugerud, Ralph A.; Tabor, Rowland W.

2009-01-01

The North Cascade Range, commonly referred to as the North Cascades, is the northern part of the Cascade Range that stretches from northern California into British Columbia, where it merges with the Coast Mountains of British Columbia at the Fraser River. The North Cascades are generally characterized by exposure of plutonic and metamorphic rocks in contrast to the volcanic terrain to the south. The rocks of the North Cascades are more resistant to erosion, display greater relief, and show evidence of more pronounced uplift and recent glaciation. Although the total length of the North Cascade Range, extending north from Snoqualmie Pass in Washington, is about 200 mi (320 km), this compilation map at 1:200,000 scale covers only that part (~150 mi) in the United States. The compilation map is derived mostly from eight 1:100,000-scale quadrangle maps that include all of the North Cascade Range in Washington and a bit of the mostly volcanic part of the Cascade Range to the south (fig. 1, sheet 2). Overall, the area represented by this compilation is about 12,740 mi2 (33,000 km2). The superb alpine scenery of the North Cascade Range and its proximity to major population centers has led to designation of much of the area for recreational use or wilderness preservation. A major part of the map area is in North Cascade National Park. Other restricted use areas are the Alpine Lakes, Boulder River, Clearwater, Glacier Peak, Henry M. Jackson, Lake Chelan-Sawtooth, Mount Baker, Noisy-Diobsud, Norse Peak, and Pasayten Wildernesses and the Mount Baker, Lake Chelan, and Ross Lake National Recreation Areas. The valleys traversed by Washington State Highway 20 east of Ross Lake are preserved as North Cascades Scenic Highway. The map area is traversed by three major highways: U.S. Interstate 90, crossing Snoqualmie Pass; Washington State Highway 2, crossing Stevens Pass; and Washington State Highway 20, crossing Washington Pass. Major secondary roads, as well as a network of U

78 FR 78808 - Proposed Flood Elevation Determinations for Pierce County, Washington, and Incorporated Areas

Federal Register 2010, 2011, 2012, 2013, 2014

2013-12-27

... sources in Pierce County, Washington. On April 16, 2012, FEMA published a proposed rulemaking at 77 FR...-2013-0002; Internal Agency Docket No. FEMA-B-7748] Proposed Flood Elevation Determinations for Pierce... proposed rule concerning proposed flood elevation determinations for Pierce County, Washington, and...

Water quality in the Anacostia River, Maryland and Rock Creek, Washington, D.C.: Continuous and discrete monitoring with simulations to estimate concentrations and yields of nutrients, suspended sediment, and bacteria

USGS Publications Warehouse

Miller, Cherie V.; Chanat, Jeffrey G.; Bell, Joseph M.

2013-01-01

Concentrations and loading estimates for nutrients, suspended sediment, and E. coli bacteria were summarized for three water-quality monitoring stations on the Anacostia River in Maryland and one station on Rock Creek in Washington, D.C. Both streams are tributaries to the Potomac River in the Washington, D.C. metropolitan area and contribute to the Chesapeake Bay estuary. Two stations on the Anacostia River, Northeast Branch at Riverdale, Maryland and Northwest Branch near Hyattsville, Maryland, have been monitored for water quality during the study period from 2003 to 2011 and are located near the shift from nontidal to tidal conditions near Bladensburg, Maryland. A station on Paint Branch is nested above the station on the Northeast Branch Anacostia River, and has slightly less developed land cover than the Northeast and Northwest Branch stations. The Rock Creek station is located in Rock Creek Park, but the land cover in the watershed surrounding the park is urbanized. Stepwise log-linear regression models were developed to estimate the concentrations of suspended sediment, total nitrogen, total phosphorus, and E. coli bacteria from continuous field monitors. Turbidity was the strongest predictor variable for all water-quality parameters. For bacteria, water temperature improved the models enough to be included as a second predictor variable due to the strong dependence of stream metabolism on temperature. Coefficients of determination (R2) for the models were highest for log concentrations of suspended sediment (0.9) and total phosphorus (0.8 to 0.9), followed by E. coli bacteria (0.75 to 0.8), and total nitrogen (0.6). Water-quality data provided baselines for conditions prior to accelerated implementation of multiple stormwater controls in the watersheds. Counties are currently in the process of enhancing stormwater controls in both watersheds. Annual yields were estimated for suspended sediment, total nitrogen, total phosphorus, and E. coli bacteria using

Reports on the STARTER/101 Pilot Project in the Reading Center of the D.C. Public Schools.

ERIC Educational Resources Information Center

O'Keefe, Ruth Ann

Eight reading specialists and seven classroom teachers in Washington, D.C., taught the STARTER/101 reading program to 98 elementary school children in 1969-70. The children were chosen because they had experienced considerable difficulty in learning to read. The program, designed as a beginning reading program for urban children, consists of…

14 CFR 93.335 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Washington, DC Metropolitan Area Special Flight Rules Area § 93.335 Definitions. For purposes of this subpart— DC FRZ flight plan is a flight plan filed... the DC FRZ. This flight plan is separate and distinct from a standard VFR flight plan, and does not...

Implementing 511 in Virginia and the Washington, DC metro area

DOT National Transportation Integrated Search

2001-04-20

On July 21, 2000, the Federal Communications Commission assigned the abbreviated dialing code 511 to be used for traveler information services. The basis for reserving 511 is that it meets the "public interest" standard for such a determination, and ...

Census Cities experiment in urban change detection. [mapping of land use changes in San Francisco, Washington D.C., Phoenix, Tucson, Boston, New Haven, Cedar Rapids, and Pontiac

NASA Technical Reports Server (NTRS)

Wray, J. R. (Principal Investigator); Milazzo, V. A.

1974-01-01

The author has identified the following significant results. Mapping of 1970 and 1972 land use from high-flight photography has been completed for all test sites: San Francisco, Washington, Phoenix, Tucson, Boston, New Haven, Cedar Rapids, and Pontiac. Area analysis of 1970 and 1972 land use has been completed for each of the mandatory urban areas. All 44 sections of the 1970 land use maps of the San Francisco test site have been officially released through USGS Open File at 1:62,500. Five thousand copies of the Washington one-sheet color 1970 land use map, census tract map, and point line identification map are being printed by USGS Publication Division. ERTS-1 imagery for each of the eight test sites is being received and analyzed. Color infrared photo enlargements at 1:100,000 of ERTS-1 MSS images of Phoenix taken on October 16, 1972 and May 2, 1973 are being analyzed to determine to what level land use and land use changes can be identified and to what extent the ERTS-1 imagery can be used in updating the 1970 aircraft photo-derived land use data base. Work is proceeding on the analysis of ERTS-1 imagery by computer manipulation of ERTS-1 MSS data in digital format. ERTS-1 CCT maps at 1:24,000 are being analyzed for two dates over Washington and Phoenix. Anniversary tape sets have been received at Purdue LARS for some additional urban test sites.

A Research Design for Library Cooperative Planning and Action in the Washington, D.C. Metropolitan Area.

ERIC Educational Resources Information Center

Booz Allen and Hamilton, Inc., Washington, DC.

The development of interlibrary cooperation in the National Capitol Area is not a simple task. The multiple, complex relations of governments on varying levels and the existence and independent sponsorship of important private association, industrial, academic and other libraries impose severe problems for any cooperative movement. A far-reaching…

49 CFR 1562.21 - Scope, general requirements, and definitions.

Code of Federal Regulations, 2014 CFR

2014-10-01

... WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for... operators located at DCA or gateway airports; individuals designated as a security coordinator by aircraft... not include an armed security officer. DCA means Ronald Reagan Washington National Airport. DASSP...

49 CFR 1562.21 - Scope, general requirements, and definitions.

Code of Federal Regulations, 2012 CFR

2012-10-01

... WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for... operators located at DCA or gateway airports; individuals designated as a security coordinator by aircraft... not include an armed security officer. DCA means Ronald Reagan Washington National Airport. DASSP...

49 CFR 1562.21 - Scope, general requirements, and definitions.

Code of Federal Regulations, 2013 CFR

2013-10-01

... WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for... operators located at DCA or gateway airports; individuals designated as a security coordinator by aircraft... not include an armed security officer. DCA means Ronald Reagan Washington National Airport. DASSP...

[Preparation of large area Al-ZnO thin film by DC magnetron sputtering].

PubMed

Jiao, Fei; Liao, Cheng; Han, Jun-Feng; Zhou, Zhen

2009-03-01

Solar cells of p-CIS/n-buffer/ZnO type, where CIS is (CuInS2, CuInSe2 or intermediates, are thin-film-based devices for the future high-efficiency and low-cost photovoltaic devices. As important thin film, the properties of Al-doped ZnO (AZO) directly affect the parameter of the cell, especially for large volume. In the present paper, AZO semiconductor transparent thin film on soda-lime glass was fabricated using cylindrical zinc-aluminum target, which can not only lower the cost of the target but also make the preparation of large area AZO thin film more easily. Using the DC magnet sputtering techniques and rolling target, high utilization efficiency of target was achieved and large area uniform and directional film was realized. An introduction to DC magnet sputtering techniques for large area film fabrication is given. With different measurement methods, such as X-ray diffraction (XRD) and scan electron microscope (SEM), we analyzed large size film's structure, appearance, and electrical and optical characteristics. The XRD spectrum indicated that the AZO film shows well zinc-blende structure with a preferred (002) growth and the c-axis is oriented normal to the substrate plane. The lattice constant is 5.603 9 nm and the mismatch with CdS thin film is only 2 percent. It absolutely satisfied the demand of the GIGS solar cell. The cross-section of the AZO thin film indicates the columnar structure and the surface morphology shows that the crystal size is about 50 nm that is consistent with the result of XRD spectrum. By the optical transmission curve, not only the high transmission rate over 85 percent in the visible spectrum between 400 nm and 700 nm was showed but also the band gap 3.1 eV was estimated. And all these parameters can meet the demand of the large area module of GIGS solar cell. The result is that using alloy target and Ar gas, and controlling the appropriate pressure of oxygen, we can get directional, condensed, uniform, high transmitting rate, low

Plant hydraulics as a central hub integrating plant and ecosystem function: meeting report for 'Emerging Frontiers in Plant Hydraulics' (Washington, DC, May 2015).

PubMed

Sack, Lawren; Ball, Marilyn C; Brodersen, Craig; Davis, Stephen D; Des Marais, David L; Donovan, Lisa A; Givnish, Thomas J; Hacke, Uwe G; Huxman, Travis; Jansen, Steven; Jacobsen, Anna L; Johnson, Daniel M; Koch, George W; Maurel, Christophe; McCulloh, Katherine A; McDowell, Nate G; McElrone, Andrew; Meinzer, Frederick C; Melcher, Peter J; North, Gretchen; Pellegrini, Matteo; Pockman, William T; Pratt, R Brandon; Sala, Anna; Santiago, Louis S; Savage, Jessica A; Scoffoni, Christine; Sevanto, Sanna; Sperry, John; Tyerman, Stephen D; Way, Danielle; Holbrook, N Michele

2016-09-01

Water plays a central role in plant biology and the efficiency of water transport throughout the plant affects both photosynthetic rate and growth, an influence that scales up deterministically to the productivity of terrestrial ecosystems. Moreover, hydraulic traits mediate the ways in which plants interact with their abiotic and biotic environment. At landscape to global scale, plant hydraulic traits are important in describing the function of ecological communities and ecosystems. Plant hydraulics is increasingly recognized as a central hub within a network by which plant biology is connected to palaeobiology, agronomy, climatology, forestry, community and ecosystem ecology and earth-system science. Such grand challenges as anticipating and mitigating the impacts of climate change, and improving the security and sustainability of our food supply rely on our fundamental knowledge of how water behaves in the cells, tissues, organs, bodies and diverse communities of plants. A workshop, 'Emerging Frontiers in Plant Hydraulics' supported by the National Science Foundation, was held in Washington DC, 2015 to promote open discussion of new ideas, controversies regarding measurements and analyses, and especially, the potential for expansion of up-scaled and down-scaled inter-disciplinary research, and the strengthening of connections between plant hydraulic research, allied fields and global modelling efforts. © 2016 John Wiley & Sons Ltd.

Anti-Cyanide Drugs.

DTIC Science & Technology

1986-05-01

EIIIIIEEEEEI I- IWO -𔃻p8 JOCOPY RESOLUfI()N T 5%% Ln AD 00 Anti-Cyanide Drugs Annual Summary Report Peter Hambright Department of Chemistry Howard University Washington...No. DAMD-17-85-C-5086 Howard University Washington D.C. 20059 TIC Approved for public release; 1L9CT7 distribution unlimited 0 The findings in this...NAME AND ADDRESS 10. PROGRAM ELEMENT. PROJECT, TASK:.,g. ARE[A & WORK UNIT NUMBERS Howard University , Dept of Chemistry Washington, D.C. 20059 I1

Attitudes, perceptions, and behaviors toward HIV testing among African American and East African immigrant women in Washington, D.C.: Implications for targeted HIV testing promotion and communication strategies

PubMed Central

De Jesus, Maria; Carrete, Claudia; Maine, Cathleen; Nalls, Patricia

2015-01-01

Objectives The objective of the study was to examine and compare the HIV testing attitudes, perceptions, and behaviors between African American and East African immigrant women in the Washington, D.C. Metropolitan area. Methods Adopting an inductive, qualitative methodological approach, we conducted a total of 40 in-depth, semi-structured interviews between October 2012 and March 2013. Qualitative thematic analysis was used to analyze the data. Results Overall, African American women held more favorable views toward HIV testing than East African immigrant women. Very few East African immigrant women sought HIV testing intentionally. The majority of East African participants were tested inadvertently, while others tested for immigration- or employment-related purposes. There were many barriers that impede women from seeking an HIV test including: negative assumptions (e.g., ‘Getting an HIV test implies that I am HIV positive’); negative emotions (e.g., ‘Fear of being diagnosed with HIV and what this will mean for me’); and potential negative reactions from partner or others (e.g., ‘Getting an HIV test can signal distrust, disrespect, or infidelity’). There were nuances in how each group articulated some of these barriers and East African women expressed unique concerns that originated from experiences in their home countries. Conclusions The study shed light into the complexity of factors that constrain women from presenting themselves voluntarily for an HIV test and highlighted the nuances between African American and East African perceptions. Implications of findings for effective targeted HIV screening promotion and communication strategies among these groups of women are discussed. PMID:25897146

Habitat fragmentation and the persistence of lynx populations in Washington state

Treesearch

Gary M Koehler; Benjamin T. Maletzke; Jeff A. Von Kienast; Keith B. Aubry; Robert B. Wielgus; Robert H. Naney

2008-01-01

Lynx (Lynx canadensis) occur in the northern counties of Washington state, USA; however, current distribution and status of lynx in Washington are poorly understood. During winters 2002-2004 we snow-tracked lynx for 155 km within a 211-km2 area in northern Washington, to develop a model of lynx-habitat relationships that we...

Population trajectory of burrowing owls (Athene cunicularia) in eastern Washington

USGS Publications Warehouse

Conway, C.J.; Pardieck, K.L.

2006-01-01

Anecdotal evidence suggests that burrowing owls have declined in Washington. The Washington Department of Fish and Wildlife is currently conducting a status review for burrowing owls which will help determine whether they should be listed as threatened or endangered in the state. To provide insights into the current status of burrowing owls (Athene cunicularia), we analyzed data from the North American Breeding Bird Survey using two analytical approaches to determine their current population trajectory in eastern Washington. We used a one-sample t-test to examine whether trend estimates across all BBS routes in Washington differed from zero. We also used a mixed model analysis to estimate the rate of decline in number of burrowing owls detected between 1968 and 2005. The slope in number of burrowing owls detected was negative for 12 of the 16 BBS routes in Washington that have detected burrowing owls. Numbers of breeding burrowing owls detected in eastern Washington declined at a rate of 1.5% annually. We suggest that all BBS routes that have detected burrowing owls in past years in eastern Washington be surveyed annually and additional surveys conducted to track population trends of burrowing owls at finer spatial scales in eastern Washington. In the meantime, land management and regulatory agencies should ensure that publicly managed areas with breeding burrowing owls are not degraded and should implement education and outreach programs to promote protection of privately owned areas with breeding owls.

GaN Microwave DC-DC Converters

NASA Astrophysics Data System (ADS)

Ramos Franco, Ignacio

Increasing the operating frequency of switching converters can have a direct impact in the miniaturization and integration of power converters. The size of energy-storage passive components and the difficulty to integrate them with the rest of the circuitry is a major challenge in the development of a fully integrated power supply on a chip. The work presented in this thesis attempts to address some of the difficulties encountered in the design of high-frequency converters by applying concepts and techniques usually used in the design of high-efficiency power amplifiers and high-efficiency rectifiers at microwave frequencies. The main focus is in the analysis, design, and characterization of dc-dc converters operating at microwave frequencies in the low gigahertz range. The concept of PA-rectifier duality, where a high-efficiency power amplifier operates as a high-efficiency rectifier is investigated through non-linear simulations and experimentally validated. Additionally, the concept of a self-synchronous rectifier, where a transistor rectifier operates synchronously without the need of a RF source or driver is demonstrated. A theoretical analysis of a class-E self-synchronous rectifier is presented and validated through non-linear simulations and experiments. Two GaN class-E2 dc-dc converters operating at a switching frequency of 1 and 1.2 GHz are demonstrated. The converters achieve 80 % and 75 % dc-dc efficiency respectively and are among the highest-frequency and highest-efficiency reported in the literature. The application of the concepts established in the analysis of a self-synchronous rectifier to a power amplifier culminated in the development of an oscillating, self-synchronous class-E 2 dc-dc converter. Finally, a proof-of-concept fully integrated GaN MMIC class-E 2 dc-dc converter switching at 4.6 GHz is demonstrated for the first time to the best of our knowledge. The 3.8 mm x 2.6 mm chip contains distributed inductors and does not require any

1. WASHINGTON SQUARE IN CENTER, LOOKING SOUTHWEST. CURTIS PUBLISHING COMPANY ...

Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

1. WASHINGTON SQUARE IN CENTER, LOOKING SOUTHWEST. CURTIS PUBLISHING COMPANY IS AT RIGHT. THE BUILDING IN FRONT OF PHOTO IS THE PENN MUTUAL LIFE INSURANCE COMPANY - Washington Square Area Study, Sixth, Seventh, Walnut & Locust Streets, Philadelphia, Philadelphia County, PA

An analysis of the North Rainier Elk Herd area, Washington: Change detection and habitat modeling with remote sensing and GIS

NASA Astrophysics Data System (ADS)

Benton, Joshua J.

The North Rainier Elk Herd (NREH) is one of ten designated herds in Washington State, all managed by the Washington Department of Fish and Wildlife (WDFW). To aid in the management of the herd, the WDFW has decided to implement a spatial ecosystem analysis. This thesis partially undertakes this analysis through the use of a suite of software tools, the Westside Elk Nutrition and Habitat Use Models (WENHUM). This model analyzes four covariates that have a strong correlation to elk habitat selection: dietary digestible energy (DDE); distance to roads open to the public; mean slope; and distance to cover-forage edge and returns areas of likely elk habitation or use. This thesis includes an update of the base vegetation layer from 2006 data to 2011, a series of clear cuts were identified as areas of change and fed into the WENHUM models. The addition of these clear cuts created improvements in the higher quality DDE levels and when the updated data is compared to the original, predictions of elk use are higher. The presence of open or closed roads was simulated by creating an area of possible closures, selecting candidate roads within that area and then modeling them as either "all open" or "all closed". The simulation of the road closures produced increases in the higher levels of predicted use.

Crafting glass vessels: current research on the ancient glass collections in the Freer Gallery of Art, Washington, D.C.

NASA Astrophysics Data System (ADS)

Nagel, Alexander; McCarthy, Blythe; Bowe, Stacy

Our knowledge of glass production in ancient Egypt has been well augmented by the publication of recently excavated materials and glass workshops, but also by more recent materials analysis, and experiments of modern glass-makers attempting to reconstruct the production process of thin-walled coreformed glass vessels. From the mounting of a prefabricated core to the final glass product our understanding of this profession has much improved. The small but well preserved glass collection of the Freer Gallery of Art in Washington, D.C. is a valid tool for examining and studying the technology and production of ancient Egyptian core formed glass vessels. Charles Lang Freer (1854-1919) acquired most of the material from Giovanni Dattari in Cairo in 1909. Previously the glass had received only limited discussion, suggesting that most of these vessels were produced in the 18th Dynasty in the 15th and 14th centuries BCE, while others date from the Hellenistic period and later. In an ongoing project we conducted computed radiography in conjunction with qualitative x-ray fluorescence analysis on a selected group of vessels to understand further aspects of the ancient production process. This paper will provide an overview of our recent research and present our data-gathering process and preliminary results. How can the examinations of core formed glass vessels in the Freer Gallery contribute to our understanding of ancient glass production and technology? By focusing on new ways of looking at old assumptions using the Freer Gallery glass collections, we hope to increase understanding of the challenges of the production process of core-vessel technology as represented by these vessels.

Hearings on the President's Youth Education and Employment Initiative. Hearings Before the Subcommittee on Elementary, Secondary, and Vocational Education of the Committee on Education and Labor, House of Representatives, 96th Congress, Second Session, on H.R. 6711. Hearings Held in Washington, D.C. on February 25, 26, 27, 28; March 3, 4, 5, 6, and 13, 1980.

ERIC Educational Resources Information Center

Congress of the U.S., Washington, DC. House Committee on Education and Labor.

These congressional hearings contain testimony given in Washington, D.C. at nine hearings pertinent to the H.R. 6711 (Youth Act of 1980) and H.R. 6897 (Amendments to the Elementary Secondary Education Act of 1965). (These are bills to extend the authorization and improve youth training and employment programs, to extend the authorization of the…

Issues of scale, location and geologic terrain related to Salt Lake City and Baltimore-Washington metropolitan areas

USGS Publications Warehouse

Cleaves, E.T.; Godfrey, A.E.; ,

2004-01-01

Planning and development of expanding metropolitan regions require consideration of earth science issues related to issues involving scale, space (location), geologic terrain and physiographic units, and information transfer. This paper explores these matters with examples from the Salt Lake City, Utah area and Mid-Atlantic region of Baltimore-Washington that include water supply and natural hazards (earthquakes, landslides, and sinkholes.) Information transfer methods using physiographic units at national, regional, local and site scales serve to communicate relevant geologic constraint and natural resource information.

Attitudes, perceptions and behaviours towards HIV testing among African-American and East African immigrant women in Washington, DC: implications for targeted HIV testing promotion and communication strategies.

PubMed

De Jesus, Maria; Carrete, Claudia; Maine, Cathleen; Nalls, Patricia

2015-12-01

The objective of the study was to examine and compare the HIV testing attitudes, perceptions and behaviours between African-American and East African immigrant women in the Washington, DC metropolitan area. Adopting an inductive, qualitative methodological approach, we conducted a total of 40 in-depth, semistructured interviews between October 2012 and March 2013. Qualitative thematic analysis was used to analyse the data. Overall, African-American women held more favourable views towards HIV testing than East African immigrant women. Very few East African immigrant women sought HIV testing intentionally. The majority of East African participants were tested inadvertently, while others tested for immigration-related or employment-related purposes. There were many barriers that impede women from seeking an HIV test including negative assumptions (eg, "Getting an HIV test implies that I am HIV positive"), negative emotions (eg, "Fear of being diagnosed with HIV and what this will mean for me") and potential negative reactions from partner or others (eg, "Getting an HIV test can signal distrust, disrespect, or infidelity"). There were nuances in how each group articulated some of these barriers and East African women expressed unique concerns that originated from experiences in their home countries. The study shed light into the complexity of factors that constrain women from presenting themselves voluntarily for an HIV test and highlighted the nuances between African-American and East African perceptions. Implications of findings for effective targeted HIV screening promotion and communication strategies among these groups of women are discussed. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/

77 FR 15787 - Washington; Major Disaster and Related Determinations

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-16

... declaration of a major disaster for the State of Washington (FEMA-4056-DR), dated March 5, 2012, and related determinations. DATES: Effective Date: March 5, 2012. FOR FURTHER INFORMATION CONTACT: Peggy Miller, Office of... determined that the damage in certain areas of the State of Washington resulting from a severe winter storm...

THE TRACK SYSTEM IN WASHINGTON, D.C.

ERIC Educational Resources Information Center

BLACKE, EVIAS, JR.

THE FOUR AREAS PRESENTED ARE GROUP AND INDIVIDUAL INTELLIGENCE TESTS, ACHIEVEMENT TESTS, EDUCATIONAL GROUPING PROCEDURES, AND FACTORS ASSOCIATED WITH LOW INCOME. A TRACK SYSTEM, OR ANY SYSTEM OF GROUPING, SHOULD PROMOTE RATHER THAN HINDER THE ACHIEVEMENT OF BOTH THE LOW-INCOME GROUPS AND THE HIGHER-INCOME GROUPS. THE PRESENT TRACK SYSTEM IN…

Test plan and preliminary report of airborne electromagentic environment survey over USA urban areas 0.4 to 18.0 GHz

NASA Technical Reports Server (NTRS)

Taylor, R. E.; Hill, J. S.

1975-01-01

An airborne electromagnetic environment survey is described of five urban areas where terrestrially-generated radio-frequency interference was measured over the frequency range from 0.4 to 18.0 GHz. A chartered Cessna 402 aircraft contained necessary measurement test equipment, including the receiving antennas mounted beneath the fuselage. Urban areas including Washington, D.C.; Baltimore, MD; Philadelphia, PA; New York, NY; Chicago, ILL; and Palestine, TX were surveyed. A flight test plan and preliminary test results for the 0.4 to 1.4 GHz frequency range, are included; a final test report describes more detailed results.

Influence of Random DC Offsets on Burst-Mode Receiver Sensitivity

NASA Astrophysics Data System (ADS)

Ossieur, Peter; de Ridder, Tine; Qiu, Xing-Zhi; Vandewege, Jan

2006-03-01

This paper presents the influence of random direct current (dc) offsets on the sensitivity of dc-coupled burst-mode receivers (BMRxs). It is well known that a BMRx exhibits a noisy decision threshold, resulting in a sensitivity penalty. If the BMRx is dc coupled, an additional penalty is incurred by random dc offsets. This penalty can only be determined for a statistically significant number of fabricated BMRx samples. Using Monte Carlo (MC) simulations and a detailed BMRx model, the relationship between the variance of this random dc offset, the resulting sensitivity penalty, and BMRx yield (the fraction of fabricated BMRx samples that meets a given sensitivity specification) is evaluated as a function of various receiver parameters. The obtained curves can be used to trade off BMRx die area against sensitivity for a given yield. It is demonstrated that a thorough understanding of the relationship between BMRx sensitivity, BMRx yield, and the variance of the random dc offsets is needed to optimize a dc-coupled BMRx with respect to sensitivity and die area for a given yield. It is shown that compensation of dc offsets with a resolution of 8 bits results in a sensitivity penalty of 1 dB for a wide range of random dc offsets.

Occurrence and Distribution of Organic Wastewater Compounds in Rock Creek Park, Washington, D.C., 2007-08

USGS Publications Warehouse

Phelan, Daniel J.; Miller, Cherie V.

2010-01-01

The U.S. Geological Survey, and the National Park Service Police Aviation Group, conducted a high-resolution, low-altitude aerial thermal infrared survey of the Washington, D.C. section of Rock Creek Basin within the Park boundaries to identify specific locations where warm water was discharging from seeps or pipes to the creek. Twenty-three stream sites in Rock Creek Park were selected based on the thermal infrared images. Sites were sampled during the summers of 2007 and 2008 for the analysis of organic wastewater compounds to verify potential sources of sewage and other anthropogenic wastewater. Two sets of stormwater samples were collected, on June 27-28 and September 6, 2008, at the Rock Creek at Joyce Road water-quality station using an automated sampler that began sampling when a specified stage threshold value was exceeded. Passive-sampler devices that accumulate organic chemicals over the duration of deployment were placed in July 2008 at the five locations that had the greatest number of detections of organic wastewater compounds from the June 2007 base-flow sampling. During the 2007 base-flow synoptic sampling, there were ubiquitous low-level detections of dissolved organic wastewater indicator compounds such as DEET, caffeine, HHCB, and organophosphate flame retardants at more than half of the 23 sites sampled in Rock Creek Park. Concentrations of DEET and caffeine in the tributaries to Rock Creek were variable, but in the main stem of Rock Creek, the concentrations were constant throughout the length of the creek, which likely reflects a distributed source. Organophosphate flame retardants in the main stem of Rock Creek were detected at estimated concentrations of 0.2 micrograms per liter or less, and generally did not increase with distance downstream. Overall, concentrations of most wastewater indicators in whole-water samples in the Park were similar to the concentrations found at the upstream sampling station at the Maryland/District of Columbia

Timber resource statistics for southwest Washington.

Treesearch

Patricia M. Bassett; Daniel D. Oswald

1981-01-01

This report summarizes a 1978 timber-resource inventory of six counties in southwest Washington: Clark, Cowlitz, Lewis, Pacific, Skamania, and Wahkiakum. Detailed tables of forest area, timber volume, growth, mortality, and harvest are presented.

DC/DC Converter Stability Testing Study

NASA Technical Reports Server (NTRS)

Wang, Bright L.

2008-01-01

This report presents study results on hybrid DC/DC converter stability testing methods. An input impedance measurement method and a gain/phase margin measurement method were evaluated to be effective to determine front-end oscillation and feedback loop oscillation. In particular, certain channel power levels of converter input noises have been found to have high degree correlation with the gain/phase margins. It becomes a potential new method to evaluate stability levels of all type of DC/DC converters by utilizing the spectral analysis on converter input noises.

Higher Mosquito Production in Low-Income Neighborhoods of Baltimore and Washington, DC: Understanding Ecological Drivers and Mosquito-Borne Disease Risk in Temperate Cities

PubMed Central

LaDeau, Shannon L.; Leisnham, Paul T.; Biehler, Dawn; Bodner, Danielle

2013-01-01

Mosquito-vectored pathogens are responsible for devastating human diseases and are (re)emerging in many urban environments. Effective mosquito control in urban landscapes relies on improved understanding of the complex interactions between the ecological and social factors that define where mosquito populations can grow. We compared the density of mosquito habitat and pupae production across economically varying neighborhoods in two temperate U.S. cities (Baltimore, MD and Washington, DC). Seven species of mosquito larvae were recorded. The invasive Aedes albopictus was the only species found in all neighborhoods. Culex pipiens, a primary vector of West Nile virus (WNV), was most abundant in Baltimore, which also had more tire habitats. Both Culex and Aedes pupae were more likely to be sampled in neighborhoods categorized as being below median income level in each city and Aedes pupae density was also greater in container habitats found in these lower income neighborhoods. We infer that lower income residents may experience greater exposure to potential disease vectors and Baltimore residents specifically, were at greater risk of exposure to the predominant WNV vector. However, we also found that resident-reported mosquito nuisance was not correlated with our measured risk index, indicating a potentially important mismatch between motivation needed to engage participation in control efforts and the relative importance of control among neighborhoods. PMID:23583963

Simplified 4-Step Transportation Planning Process For Any Sized Area

DOT National Transportation Integrated Search

1999-01-01

This paper presents a streamlined version of the Washington, D.C. region's : 4-step travel demand forecasting model. The purpose for streamlining the : model was to have a model that could: replicate the regional model, and be run : in a new s...

49 CFR 1562.25 - Fixed base operator requirements.

Code of Federal Regulations, 2014 CFR

2014-10-01

... 1562.25 Transportation Other Regulations Relating to Transportation (Continued) TRANSPORTATION SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY CIVIL AVIATION SECURITY OPERATIONS IN THE WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for Certain...

Availability of ground water in the area surrounding the Trident submarine construction facility, Kitsap County, Washington

USGS Publications Warehouse

Hansen, Arnold J.; Molenaar, Dee

1976-01-01

General information is presented on water resources--with emphasis on ground-water occurrence and availability--in that part of Kitsap County (referred to as Trident Impact Area) that would be most affected by the development of the Trident submarine construction facility at Bangor, Washington. The estimated 1970 water use in the study area averaged about 13 million gallons per day (mgd); of this amount about 9 mgd came from surface-water sources--from a large reservoir outside the study area--and about 4 mgd came from ground water pumped from two aquifers in the area. Anticipated water use soon will be about 18 to 21 mgd; virtually all the additional quantity required (about 5 to 8 mgd) above present use must come from ground-water sources. Preliminary evaluation of the aquifers suggests that an additional 1.5 mgd can be developed from the upper aquifer and 7 mgd from the lower aquifer. Existing wells tapping the lower aquifer might yield additional water and increase the total yield in the area by 3.5 mgd, and new wells drilled in selected areas could produce an additional 3.5 mgd from this aquifer. However, additional, large-scale ground-water withdrawal from the lower aquifer could induce saltwater intrusion into wells situated in coastal areas. (Woodard-USGS)

Timber resource statistics for eastern Washington.

Treesearch

Patricia M. Bassett; Daniel D. Oswald

1983-01-01

This report summarizes a 1980 timber resource inventory of the 16 forested counties in Washington east of the crest of the Cascade Range. Detailed tables of forest area, timber volume, growth, mortality, and harvest are presented.

Beyond Line of Sight (BLOS) Command and Control (C2) Capability to Improve Disaster Response and Recovery

DTIC Science & Technology

2013-09-01

on the possible threat of an electromagnetic pulse (EMP) and its potential consequences following the destructive “ derecho ” that hit Washington, DC...in 2012.19 Spanish for the word “straight,” a derecho is a term used to describe a widespread, long- lived, straight-line windstorm that is...emergency communications system and raised concern for future response. Both Hurricane Katrina and the Washington, DC, area derecho have subsequently

Transitions to Peace: Effects on Internal Security Forces in Nicaragua, El Salvador and Guatemala

DTIC Science & Technology

2008-12-01

and the National Guard, which operated in rural areas.”133 A National Intelligence Directorate supported the 60,000 strong security personnel in...Londoño, Juan Luis, Alejandro Gaviria, and Rodrigo Guerrero eds., Asalto al Desarrollo (Washington, D.C.: Inter-American Development Bank, 2000...Guerrero eds., Asalto al desarrollo . Washington, D.C.: Inter-American Development Bank, 2000. “Saca unimpressed with size of U.S. funding.” Latin

Multi Bus DC-DC Converter in Electric Hybrid Vehicles

NASA Astrophysics Data System (ADS)

Krithika, V.; Subramaniam, C.; Sridharan, R.; Geetha, A.

2018-04-01

This paper is cotncerned with the design, simulation and fabrication of the prototype of a Multi bus DC- DC converter operating from 42V DC and delivering 14V DC and 260V DC. As a result, three DC buses are interconnected through a single power electronic circuitry. Such a requirement is energized in the development of a hybrid electric automobile which uses the technology of fuel cell. This is implemented by using a Bidirectional DC-DC converter configuration which is ideally suitable for multiple outputs with mutual electrical isolation. For the sake of reduced size and cost of step-up transformer, selection of a high frequency switching cycle at 10 KHz was done.

Early Oscillation Detection for DC/DC Converter Fault Diagnosis

NASA Technical Reports Server (NTRS)

Wang, Bright L.

2011-01-01

The electrical power system of a spacecraft plays a very critical role for space mission success. Such a modern power system may contain numerous hybrid DC/DC converters both inside the power system electronics (PSE) units and onboard most of the flight electronics modules. One of the faulty conditions for DC/DC converter that poses serious threats to mission safety is the random occurrence of oscillation related to inherent instability characteristics of the DC/DC converters and design deficiency of the power systems. To ensure the highest reliability of the power system, oscillations in any form shall be promptly detected during part level testing, system integration tests, flight health monitoring, and on-board fault diagnosis. The popular gain/phase margin analysis method is capable of predicting stability levels of DC/DC converters, but it is limited only to verification of designs and to part-level testing on some of the models. This method has to inject noise signals into the control loop circuitry as required, thus, interrupts the DC/DC converter's normal operation and increases risks of degrading and damaging the flight unit. A novel technique to detect oscillations at early stage for flight hybrid DC/DC converters was developed.

49 CFR 1562.27 - Costs.

Code of Federal Regulations, 2014 CFR

2014-10-01

... Other Regulations Relating to Transportation (Continued) TRANSPORTATION SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY CIVIL AVIATION SECURITY OPERATIONS IN THE WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for Certain Operations § 1562.27...

49 CFR 1562.27 - Costs.

Code of Federal Regulations, 2010 CFR

2010-10-01

... Other Regulations Relating to Transportation (Continued) TRANSPORTATION SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY CIVIL AVIATION SECURITY OPERATIONS IN THE WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for Certain Operations § 1562.27...

49 CFR 1562.27 - Costs.

Code of Federal Regulations, 2011 CFR

2011-10-01

... Other Regulations Relating to Transportation (Continued) TRANSPORTATION SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY CIVIL AVIATION SECURITY OPERATIONS IN THE WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for Certain Operations § 1562.27...

49 CFR 1562.27 - Costs.

Code of Federal Regulations, 2013 CFR

2013-10-01

... Other Regulations Relating to Transportation (Continued) TRANSPORTATION SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY CIVIL AVIATION SECURITY OPERATIONS IN THE WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for Certain Operations § 1562.27...

49 CFR 1562.27 - Costs.

Code of Federal Regulations, 2012 CFR

2012-10-01

... Other Regulations Relating to Transportation (Continued) TRANSPORTATION SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY CIVIL AVIATION SECURITY OPERATIONS IN THE WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for Certain Operations § 1562.27...

78 FR 38829 - Special Local Regulations; Seattle Seafair Hydroplane Race, Lake Washington, WA

Federal Register 2010, 2011, 2012, 2013, 2014

2013-06-28

... Local Regulations; Seattle Seafair Hydroplane Race, Lake Washington, WA AGENCY: Coast Guard, DHS. ACTION... Hydroplane Race Special Local Regulation on Lake Washington, WA from 8 a.m. on August 2, 2013, through 11:59... restrict general navigation in the following area; The waters of Lake Washington bounded by the Interstate...

State safety oversight program : audit of the tri-state oversight committee and the Washington metropolitan area transit authority, final audit report, March 4, 2010.

DOT National Transportation Integrated Search

2010-03-04

The Federal Transit Administration (FTA) conducted an on-site audit of the safety program implemented by the Washington Metropolitan Area Transit Authority (WMATA) and overseen by the Tri-State Oversight Committee (TOC) between December 14 and 17, 20...

Ground water in the Pullman area, Whitman County, Washington

USGS Publications Warehouse

Foxworthy, B.L.; Washburn, R.L.

1963-01-01

This report presents the results of an investigation of the ground-water resources of the Pullman area, Whitman County, Wash. The investigation war made in cooperation with the State of Washington, Department of Conservation, Division of Water Resources, to determine whether the 1959 rate of ground-water withdrawal exceeded the perennial yield of the developed aquifers, and if so, (1) whether additional aquifers could be developed in the area, and (2) whether the yield of the developed aquifers could be increased by artificial recharge. The Pullman area includes the agricultural district surrounding the city of Pullman, in southeastern Whitman County, and the western two-thirds of the Moscow-Pullman basin, which extends into Latah County, Idaho. The mapped area comprises shout 250 square miles. The area is in a region of smooth rolling hills formed by erosion of thick deposits of loess, which cover a dissected lava plain. The loess (Palouse formation of Pleistocene age) ranges in thickness from less than 1 foot to more than 150 feet. The underlying lava flows, part of the Columbia River basalt of Tertiary age, are nearly horizontal and form bluffs and low cliffs along the major streams. The total thickness of the basalt sequence in the area is not known, but it may be considerably greater than 1,000 feet beneath the city of Pullman. The basalt sequence is underlain by a basement mass of granite, granite gneiss, and quartzite, of pre-Tertiary age. The most productive aquifers in the area are in the Columbia River basalt. They consist of the permeable zones, commonly occurring at the tops of individual lava flows, which may contain ground water under either artesian or water-table conditions. Two such permeable zones have produced more than 95 percent of the ground water used in the Pullman area, or as much as 870 million gallons per year (1957). These two zones are hydraulically connected and lie at depths ranging from about 50 to 170 feet below the land surface at

Precipitation Data for the Mount St. Helens Area, Washington--1981-86

USGS Publications Warehouse

Uhrich, Mark A.

1990-01-01

This report is a compilation of precipitation data from U.S. Geological Survey telemetered 'Early Flood Warning' sites near Mount St. Helens, Washington, and from telemetered hydrologic data sites in the Toutle River and Muddy River basins for the years 1981-86. It also includes precipitation data for 1981-86 from non-telemetered recording rain gages established near the debris-avalanche blockages of Spirit Lake, Coldwater Lake, and Castle Lake. Daily values (midnight to midnight) are listed by station and calendar year for 32 sites. Hourly data, where available, are presented for the storm that generated the highest peak discharge in the North Fork Toutle River each water year. Instrumentation includes 25 tipping-bucket, and 7 weighing-bucket rain gages all without windshields. The seven sites with weighing-bucket gages were the only U.S. Geological Survey sites at which snowfall was measured. Additional snowfall measurements for the same time period in the Mount St. Helens area were collected by the National Weather Service, the U.s. Soil Conservation Service, and the U.S. Army Corps of Engineers and also are presented in this report.

dc Arc Fault Effect on Hybrid ac/dc Microgrid

NASA Astrophysics Data System (ADS)

Fatima, Zahra

The advent of distributed energy resources (DER) and reliability and stability problems of the conventional grid system has given rise to the wide spread deployment of microgrids. Microgrids provide many advantages by incorporating renewable energy sources and increasing the reliability of the grid by isolating from the main grid in case of an outage. AC microgrids have been installed all over the world, but dc microgrids have been gaining interest due to the advantages they provide over ac microgrids. However the entire power network backbone is still ac and dc microgrids require expensive converters to connect to the ac power network. As a result hybrid ac/dc microgrids are gaining more attention as it combines the advantages of both ac and dc microgrids such as direct integration of ac and dc systems with minimum number of conversions which increases the efficiency by reducing energy losses. Although dc electric systems offer many advantages such as no synchronization and no reactive power, successful implementation of dc systems requires appropriate protection strategies. One unique protection challenge brought by the dc systems is dc arc faults. A dc arc fault is generated when there is a gap in the conductor due to insulation degradation and current is used to bridge the gap, resulting in an arc with very high temperature. Such a fault if it goes undetected and is not extinguished can cause damage to the entire system and cause fires. The purpose of the research is to study the effect of the dc arc fault at different locations in the hybrid ac/dc microgrid and provide insight on the reliability of the grid components when it is impacted by arc faults at various locations in the grid. The impact of dc arc fault at different locations on the performance of the PV array, wind generation, and constant power loads (CPL) interfaced with dc/dc converters is studied. MATLAB/Simulink is used to model the hybrid ac/dc microgrid and arc fault.

Milliwatt dc/dc Inverter

NASA Technical Reports Server (NTRS)

Mclyman, C. W.

1983-01-01

Compact dc/dc inverter uses single integrated-circuit package containing six inverter gates that generate and amplify 100-kHz square-wave switching signal. Square-wave switching inverts 10-volt local power to isolated voltage at another desired level. Relatively high operating frequency reduces size of filter capacitors required, resulting in small package unit.

Booker T. Washington's Educational Contributions to Contemporary Practices of Sustainable Development

ERIC Educational Resources Information Center

Grant, Brett G.

2014-01-01

This article discusses Booker T. Washington's educational contributions to contemporary practices of sustainable development. In particular, the article looks at Washington's contributions in the areas of economic sustainability and entrepreneurship, character development, and aesthetics. As states continue to contemplate and evaluate the value of…

Two new families of high-gain dc-dc power electronic converters for dc-microgrids

NASA Astrophysics Data System (ADS)

Prabhala, Venkata Anand Kishore

Distributing the electric power in dc form is an appealing solution in many applications such as telecommunications, data centers, commercial buildings, and microgrids. A high gain dc-dc power electronic converter can be used to individually link low-voltage elements such as solar panels, fuel cells, and batteries to the dc voltage bus which is usually 400 volts. This way, it is not required to put such elements in a series string to build up their voltages. Consequently, each element can function at it optimal operating point regardless of the other elements in the system. In this dissertation, first a comparative study of dc microgrid architectures and their advantages over their ac counterparts is presented. Voltage level selection of dc distribution systems is discussed from the cost, reliability, efficiency, and safety standpoints. Next, a new family of non-isolated high-voltage-gain dc-dc power electronic converters with unidirectional power flow is introduced. This family of converters benefits from a low voltage stress across its switches. The proposed topologies are versatile as they can be utilized as single-input or double-input power converters. In either case, they draw continuous currents from their sources. Lastly, a bidirectional high-voltage-gain dc-dc power electronic converter is proposed. This converter is comprised of a bidirectional boost converter which feeds a switched-capacitor architecture. The switched-capacitor stage suggested here has several advantages over the existing approaches. For example, it benefits from a higher voltage gain while it uses less number of capacitors. The proposed converters are highly efficient and modular. The operating modes, dc voltage gain, and design procedure for each converter are discussed in details. Hardware prototypes have been developed in the lab. The results obtained from the hardware agree with those of the simulation models.

Long-term trends in patron satisfaction of DC Circulator.

DOT National Transportation Integrated Search

2013-10-01

The DC Circulator is a local transit system designed to facilitate travel to and within the central business area in the District of Columbia. Since its inception in 2005, the Downtown DC Business Improvement District (DCBID) and the District Departm...

Changes in commercial forest area in Oregon and Washington 1945-70.

Treesearch

Charles L. Bolsinger

1973-01-01

Between 1945 and 1970, nearly 1 million acres of commercial forest land: in Oregon and Washington were converted to nonforest uses. Road construction was the leading cause; urban and industrial expansion the second most important cause. Other significant causes of forest loss were agricultural clearing, powerline clearing, and construction of reservoirs and other...

14 CFR Appendix D to Part 91 - Airports/Locations: Special Operating Restrictions

Code of Federal Regulations, 2010 CFR

2010-01-01

... (Tampa International Airport) Washington, DC (Ronald Reagan Washington National Airport and Andrews Air... Francisco, CA (San Francisco International Airport) Washington, DC (Ronald Reagan Washington National... (Seattle-Tacoma International Airport) Tampa, FL (Tampa International Airport) Washington, DC (Ronald...

14 CFR Appendix D to Part 91 - Airports/Locations: Special Operating Restrictions

Code of Federal Regulations, 2011 CFR

2011-01-01

... (Tampa International Airport) Washington, DC (Ronald Reagan Washington National Airport and Andrews Air... Francisco, CA (San Francisco International Airport) Washington, DC (Ronald Reagan Washington National... (Seattle-Tacoma International Airport) Tampa, FL (Tampa International Airport) Washington, DC (Ronald...

Washington's public and private forests.

Treesearch

Charles L. Bolsinger; Neil McKay; Donald FL Gedney; Carol Alerich

1997-01-01

This report summarizes and analyzes 1988-91 timber inventories of western and eastern Washington. These inventories were conducted on all private and public lands except National Forests. Timber resource statistics from National Forest inventories also are presented. Detailed tables provide estimates of forest area, timber volume, growth, mortality, and harvest. Data...

Predicting the Timing of Cherry Blossoms in Washington, DC and Mid-Atlantic States in Response to Climate Change

PubMed Central

Chung, Uran; Mack, Liz; Yun, Jin I.; Kim, Soo-Hyung

2011-01-01

Cherry blossoms, an icon of spring, are celebrated in many cultures of the temperate region. For its sensitivity to winter and early spring temperatures, the timing of cherry blossoms is an ideal indicator of the impacts of climate change on tree phenology. Here, we applied a process-based phenology model for temperate deciduous trees to predict peak bloom dates (PBD) of flowering cherry trees (Prunus×yedoensis ‘Yoshino’ and Prunus serrulata ‘Kwanzan’) in the Tidal Basin, Washington, DC and the surrounding Mid-Atlantic States in response to climate change. We parameterized the model with observed PBD data from 1991 to 2010. The calibrated model was tested against independent datasets of the past PBD data from 1951 to 1970 in the Tidal Basin and more recent PBD data from other locations (e.g., Seattle, WA). The model performance against these independent data was satisfactory (Yoshino: r2 = 0.57, RMSE = 6.6 days, bias = 0.9 days and Kwanzan: r2 = 0.76, RMSE = 5.5 days, bias = −2.0 days). We then applied the model to forecast future PBD for the region using downscaled climate projections based on IPCC's A1B and A2 emissions scenarios. Our results indicate that PBD at the Tidal Basin are likely to be accelerated by an average of five days by 2050 s and 10 days by 2080 s for these cultivars under a mid-range (A1B) emissions scenario projected by ECHAM5 general circulation model. The acceleration is likely to be much greater (13 days for 2050 s and 29 days for 2080s ) under a higher (A2) emissions scenario projected by CGCM2 general circulation model. Our results demonstrate the potential impacts of climate change on the timing of cherry blossoms and illustrate the utility of a simple process-based phenology model for developing adaptation strategies to climate change in horticulture, conservation planning, restoration and other related disciplines. PMID:22087317

DC to DC power converters and methods of controlling the same

DOEpatents

Steigerwald, Robert Louis; Elasser, Ahmed; Sabate, Juan Antonio; Todorovic, Maja Harfman; Agamy, Mohammed

2012-12-11

A power generation system configured to provide direct current (DC) power to a DC link is described. The system includes a first power generation unit configured to output DC power. The system also includes a first DC to DC converter comprising an input section and an output section. The output section of the first DC to DC converter is coupled in series with the first power generation unit. The first DC to DC converter is configured to process a first portion of the DC power output by the first power generation unit and to provide an unprocessed second portion of the DC power output of the first power generation unit to the output section.

78 FR 44523 - Burned Area Emergency Response, Forest Service

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-24

..., Fish, Wildlife, Air and Rare Plants, Mail Stop 1121, 1400 Independence Ave. SW., Washington, DC 20250... interim directive may do so in the Office of the Director, Watershed, Fish, Wildlife, Air and Rare Plants..., Fish Wildlife, Air and Rare Plants Staff, 333 Broadway SE., Albuquerque, NM 87102, 505-842-3141 or...

78 FR 29615 - Establishment of Area Navigation (RNAV) Routes; Washington, DC

Federal Register 2010, 2011, 2012, 2013, 2014

2013-05-21

...). Q-72 extends between the HACKS, WV, intersection and the RAMAY, VA, WP. It provides an alternate route for jet route J-149 via a direct routing to the HACKS intersection, thus reducing miles flown for...]12'20'' W.) Q72 HACKS, WV to RAMAY, VA [New] HACKS, WV FIX (Lat. 39[deg]07'46'' N., long. 081[deg]05...

Noise Control through Education.

ERIC Educational Resources Information Center

Pennino, Martha

1979-01-01

Discussed are the public education and information programs on noise pollution control currently in operation within the Metropolitan Washington, D.C. area that have been either developed or implemented under the auspices of the Metropolitan Washington Council of Governments. (BT)

49 CFR 1562.29 - Armed security officer requirements.

Code of Federal Regulations, 2013 CFR

2013-10-01

... SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY CIVIL AVIATION SECURITY OPERATIONS IN THE WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for... 49 Transportation 9 2013-10-01 2013-10-01 false Armed security officer requirements. 1562.29...

49 CFR 1562.29 - Armed security officer requirements.

Code of Federal Regulations, 2014 CFR

2014-10-01

... SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY CIVIL AVIATION SECURITY OPERATIONS IN THE WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for... 49 Transportation 9 2014-10-01 2014-10-01 false Armed security officer requirements. 1562.29...

49 CFR 1562.29 - Armed security officer requirements.

Code of Federal Regulations, 2012 CFR

2012-10-01

... SECURITY ADMINISTRATION, DEPARTMENT OF HOMELAND SECURITY CIVIL AVIATION SECURITY OPERATIONS IN THE WASHINGTON, DC, METROPOLITAN AREA Ronald Reagan Washington National Airport: Enhanced Security Procedures for... 49 Transportation 9 2012-10-01 2012-10-01 false Armed security officer requirements. 1562.29...

Preliminary timber resource statistics for southwest Washington.

Treesearch

Colin D. MacLean; Janet L. Ohmann; Patricia M. Bassett

1991-01-01

This report summarizes a 1988 timber inventory of six counties in southwest Washington: Clark, Cowlitz, Lewis, Pacific, Skamania, and Wahkiakum. Detailed tables of forest area, timber volume, growth, mortality, and harvest are presented.