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Sample records for 2c548a washington dc

  1. Washington, DC

    NASA Technical Reports Server (NTRS)

    2002-01-01

    Citizens of the United States vote today (November 7, 2000) to determine who will be the next president and vice president of the country, as well as who will fill a number of congressional and senate seats that are up for election. This image of the U.S. capital city-Washington, D.C.-was acquired on June 1 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER), a Japanese sensor flying aboard NASA's Terra spacecraft. The scene encompasses an area 14 km wide by 13.7 km tall, and was made using a combination of ASTER's visible and near-infrared channels. In this image, vegetation appears red, buildings and paved areas appear light blue, and the waters of the Anacostia and Potomac Rivers are dark grey. ASTER's 15-meter spatial resolution allows us to see individual buildings, including the White House, the Jefferson Memorial, and the Washington Monument with its shadow. Image courtesy NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team

  2. Greening America's Capitals - Washington, DC

    EPA Pesticide Factsheets

    This Greening America's Capitals report describes design options for the Anacostia Metro station in Washington, DC, that could help people feel safer and more comfortable walking to and from the station.

  3. Washington: A DC Circuit Tour

    NASA Astrophysics Data System (ADS)

    Halpern, Paul

    2010-12-01

    I explore the history of physics in Washington, D.C., and its environs through a tour of notable sites and personalities. Highlights include visits to the Smithsonian and Carnegie Institutions, stops at the Einstein Memorial, George Washington University, the University of Maryland, and the American Center for Physics, and biographical sketches of physicists Joseph Henry, George Gamow, Edward Teller, and others who worked in the District of Columbia.

  4. 49 CFR 372.219 - Washington, DC

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 5 2013-10-01 2013-10-01 false Washington, DC 372.219 Section 372.219... ZONES, AND TERMINAL AREAS Commercial Zones § 372.219 Washington, DC The zone adjacent to, and... points within a line drawn 15 miles beyond the municipal limits of Washington, DC (c) All points...

  5. 49 CFR 372.219 - Washington, DC

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 49 Transportation 5 2010-10-01 2010-10-01 false Washington, DC 372.219 Section 372.219... ZONES, AND TERMINAL AREAS Commercial Zones § 372.219 Washington, DC The zone adjacent to, and... points within a line drawn 15 miles beyond the municipal limits of Washington, DC (c) All points...

  6. 49 CFR 372.219 - Washington, DC

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 5 2014-10-01 2014-10-01 false Washington, DC 372.219 Section 372.219... ZONES, AND TERMINAL AREAS Commercial Zones § 372.219 Washington, DC The zone adjacent to, and... points within a line drawn 15 miles beyond the municipal limits of Washington, DC (c) All points...

  7. 49 CFR 372.219 - Washington, DC

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 5 2012-10-01 2012-10-01 false Washington, DC 372.219 Section 372.219... ZONES, AND TERMINAL AREAS Commercial Zones § 372.219 Washington, DC The zone adjacent to, and... points within a line drawn 15 miles beyond the municipal limits of Washington, DC (c) All points...

  8. 49 CFR 372.219 - Washington, DC

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 5 2011-10-01 2011-10-01 false Washington, DC 372.219 Section 372.219... ZONES, AND TERMINAL AREAS Commercial Zones § 372.219 Washington, DC The zone adjacent to, and... points within a line drawn 15 miles beyond the municipal limits of Washington, DC (c) All points...

  9. ASTER Washington, D.C.

    NASA Technical Reports Server (NTRS)

    2000-01-01

    The White House, the Jefferson Memorial, and the Washington Monument with its shadow are all visible in this image of Washington, D.C. With its 15-meter spatial resolution, ASTER can see individual buildings. Taken on June 1, 2000, this image covers an area 14 kilometers (8.5 miles) wide and 13.7 kilometers (8.2 miles) long in three bands of the reflected visible and infrared wavelength region. The combination of visible and near infrared bands displays vegetation in red and water in dark grays. The Potomac River flows from the middle left to the bottom center. The large red area west of the river is Arlington National Cemetery.

    Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is one of five Earth-observing instruments launched December 18, 1999, on NASA's Terra satellite. The instrument was built by Japan's Ministry of International Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. Dr. Anne Kahle at NASA's Jet Propulsion Laboratory, Pasadena, California, is the U.S. science team leader; Moshe Pniel of JPL is the project manager. ASTER is the only high-resolution imaging sensor on Terra. The primary goal of the ASTER mission is to obtain high-resolution image data in 14 channels over the entire land surface, as well as black and white stereo images. With revisit time of between 4 and 16 days, ASTER will provide the capability for repeat coverage of changing areas on Earth's surface.

    The broad spectral coverage and high spectral resolution of ASTER will provide scientists in numerous disciplines with critical information for surface mapping and monitoring dynamic conditions and temporal change. Examples of applications include monitoring glacial advances and retreats, potentially active volcanoes, thermal pollution, and coral reef degradation; identifying crop stress; determining cloud morphology and physical properties; evaluating wetlands

  10. 75 FR 20776 - Security Zone; Potomac River, Washington Channel, Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-21

    ..., Washington, DC AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is... Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590, between 9 a.m. and... (NPRM) entitled ``Security Zone; Potomac River, Washington Channel, Washington, DC'' in the...

  11. 1. WASHINGTON TERMINAL COMPANY: UNION STATION. WASHINGTON, D.C. Sec. 1201, ...

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

    1. WASHINGTON TERMINAL COMPANY: UNION STATION. WASHINGTON, D.C. Sec. 1201, MP 137.00. (See HAER No. DC-1 for documentation on Union Station Power Plant.) - Northeast Railroad Corridor, Amtrak Route between Union Station & DC/MD State Line, Washington, District of Columbia, DC

  12. 76 FR 52602 - Drawbridge Operation Regulation; Anacostia River, Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-23

    ..., Washington, DC AGENCY: Coast Guard, DHS. ACTION: Notice of proposed rulemaking. SUMMARY: The Coast Guard... the Anacostia River, mile 3.4 at Washington, DC. The proposed change will alter the eight hour advance..., SE., Washington, DC 20590-0001. (4) Hand delivery: Same as mail address above, between 9 a.m. and 5...

  13. 76 FR 52566 - Drawbridge Operation Regulations; Anacostia River, Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-23

    ... SECURITY Coast Guard 33 CFR Part 117 Drawbridge Operation Regulations; Anacostia River, Washington, DC... Washington, DC. This deviation will test a change to the drawbridge operation schedule to determine whether a..., SE., Washington, DC 20590-0001. (4) Hand delivery: Same as mail address above, between 9 a.m. and 5...

  14. 77 FR 25781 - Environmental Impact Statement; Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-01

    ... Federal Highway Administration Environmental Impact Statement; Washington, DC AGENCY: U.S. Federal Highway... Washington, DC is issuing this notice to advise agencies and the public that a Draft Environmental Impact... Avenue Tunnel in Washington, DC. The tunnel is owned and operated by CSX Transportation, Inc. (CSX),...

  15. 77 FR 14968 - Drawbridge Operation Regulation; Anacostia River, Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-14

    ..., Washington, DC AGENCY: Coast Guard, DHS. ACTION: Final rule. SUMMARY: The Coast Guard is changing the..., mile 3.4, at Washington, DC. The change will alter the eight hour advance notice requirement for a... Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except...

  16. 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

  17. Pedestrian crashes in Washington, DC and Baltimore.

    PubMed

    Preusser, David F; Wells, JoAnn K; Williams, Allan F; Weinstein, Helen B

    2002-09-01

    Police crash reports were obtained for pedestrian-motor vehicle crashes in Washington, DC (N = 852) and Baltimore (N = 1234) for the year 1998. Reports were coded using procedures developed and applied in these two cities during the 1970s, including the determination of pedestrian crash type, primary precipitating factor, and culpability. Results indicated substantial differences between crash patterns observed during the 1970s and those observed during 1998. Midblock dart-dash crashes, which typically involve a precipitating factor or critical error by a child pedestrian, decreased (from 37% to 15% in Washington). Across all crashes in both cities, the number of drivers who made a critical error leading to the crash was nearly equivalent to the number of pedestrians who made a critical error. Overall, pedestrians were slightly more likely to be judged culpable (50% vs. 39%). Turning vehicle crashes, which typically involve a driver's failure to grant a pedestrian the right of way at a signalized intersection, increased (from 9% to 25% in Washington). Countermeasures to reduce the number of pedestrians hit by turning vehicles are discussed.

  18. 75 FR 10446 - Security Zone; Potomac River, Washington Channel, Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-08

    ..., Washington, DC AGENCY: Coast Guard, DHS. ACTION: Notice of proposed rulemaking. SUMMARY: The Coast Guard... New Jersey Avenue, SE., Washington, DC 20590-0001. (4) Hand Delivery: Same as mail address above..., DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. We have...

  19. 75 FR 28757 - Security Zone; Potomac River, Washington Channel, Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-24

    ..., Washington, DC AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is... Transportation, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590..., DC on Monday, May 24, 2010. To address security concerns during the event, the Captain of the...

  20. 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…

  1. 38 CFR 3.851 - St. Elizabeths Hospital, Washington, DC.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 1 2013-07-01 2013-07-01 false St. Elizabeths Hospital, Washington, DC. 3.851 Section 3.851 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS... Institutional Awards § 3.851 St. Elizabeths Hospital, Washington, DC. Benefits due or becoming due any...

  2. 38 CFR 3.851 - St. Elizabeths Hospital, Washington, DC.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 1 2011-07-01 2011-07-01 false St. Elizabeths Hospital, Washington, DC. 3.851 Section 3.851 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS... Institutional Awards § 3.851 St. Elizabeths Hospital, Washington, DC. Benefits due or becoming due any...

  3. 38 CFR 3.851 - St. Elizabeths Hospital, Washington, DC.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 1 2014-07-01 2014-07-01 false St. Elizabeths Hospital, Washington, DC. 3.851 Section 3.851 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS... Institutional Awards § 3.851 St. Elizabeths Hospital, Washington, DC. Benefits due or becoming due any...

  4. 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, Washington, DC. 3.851 Section 3.851 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS... Institutional Awards § 3.851 St. Elizabeths Hospital, Washington, DC. Benefits due or becoming due any...

  5. 38 CFR 3.851 - St. Elizabeths Hospital, Washington, DC.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 38 Pensions, Bonuses, and Veterans' Relief 1 2012-07-01 2012-07-01 false St. Elizabeths Hospital, Washington, DC. 3.851 Section 3.851 Pensions, Bonuses, and Veterans' Relief DEPARTMENT OF VETERANS AFFAIRS... Institutional Awards § 3.851 St. Elizabeths Hospital, Washington, DC. Benefits due or becoming due any...

  6. Washington DC Area Computer Aided Surgery Society Monthly Meetings

    DTIC Science & Technology

    2009-03-01

    05-1-0072 TITLE: Washington DC Area Computer Aided Surgery Society Monthly Meetings PRINCIPAL INVESTIGATOR: Kevin R. Cleary, Ph.D...Feb 2005-21 Feb 2009 4. Title and Subtitle Washington DC Area Computer Aided Surgery Society Monthly Meetings 5. Award Number W81XWH-05-1-0072...Area Computer-Aided Surgery Society (WashCAS) has become the major vehicle in the Washington/Baltimore area for exploring the issues in the emerging

  7. 78 FR 37104 - Establishment of Area Navigation (RNAV) Routes; Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-20

    ...) Routes; Washington, DC AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule; correction..., that establishes five RNAV routes in support of the Washington, DC, Optimization of Airspace and..., Federal Aviation Administration, 800 Independence Avenue SW., Washington, DC 20591; telephone: (202)...

  8. Antarctic Treaty Summit: Washington, DC (2009)

    NASA Astrophysics Data System (ADS)

    Berkman, P. A.; Young, O. R.

    2005-12-01

    Advancement in Earth system science and international cooperation have been intertwined with the International Polar Years since 1882. In particular, the 3rd International Polar Year (which was convened as the International Geophysical Year from 1 July 1957 through 31 December 1958) specifically demonstrates the role of science in international policy: Acknowledging the substantial contributions to scientific knowledge resulting from international cooperation in scientific investigation in Antarctica; Convinced that the establishment of a firm foundation for the continuation and development of such cooperation on the basis of freedom of scientific investigation in Antarctica as applied during the International Geophysical Year accords with the interests of science and the progress of all mankind; Preamble, 1959 Antarctic Treaty To commemorate the 50th anniversary of the 1959 Antarctic Treaty and to explore the complexities of the science-policy relationship through the lens of a well-constrained case study, an international and interdisciplinary Antarctic Treaty Summit is being planned for 2009 in Washington, DC in conjunction with the International Polar Year 2007-08 (http://www.ipy.org).

  9. 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.

  10. 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.

  11. 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.

  12. 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.

  13. Washington, D.C.: A Very Great Place to Visit.

    ERIC Educational Resources Information Center

    Camping Magazine, 1986

    1986-01-01

    Describes places of interest in Washington, D.C. for attendees of the Second International Camping Congress on March 2-6, 1987. Includes information about the Capitol, Air and Space Museum, National Museum of Natural History, National Museum of American History, Washington Monument, Lincoln Memorial, and White House. Contains photographs of four…

  14. 36 CFR 910.13 - Urban design of Washington, DC.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 36 Parks, Forests, and Public Property 3 2013-07-01 2012-07-01 true Urban design of Washington, DC. 910.13 Section 910.13 Parks, Forests, and Public Property PENNSYLVANIA AVENUE DEVELOPMENT CORPORATION... PENNSYLVANIA AVENUE DEVELOPMENT AREA Urban Planning and Design Concerns § 910.13 Urban design of Washington,...

  15. 36 CFR 910.13 - Urban design of Washington, DC.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 36 Parks, Forests, and Public Property 3 2012-07-01 2012-07-01 false Urban design of Washington, DC. 910.13 Section 910.13 Parks, Forests, and Public Property PENNSYLVANIA AVENUE DEVELOPMENT... PENNSYLVANIA AVENUE DEVELOPMENT AREA Urban Planning and Design Concerns § 910.13 Urban design of Washington,...

  16. 36 CFR 910.13 - Urban design of Washington, DC.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 36 Parks, Forests, and Public Property 3 2014-07-01 2014-07-01 false Urban design of Washington, DC. 910.13 Section 910.13 Parks, Forests, and Public Property PENNSYLVANIA AVENUE DEVELOPMENT... PENNSYLVANIA AVENUE DEVELOPMENT AREA Urban Planning and Design Concerns § 910.13 Urban design of Washington,...

  17. 36 CFR 910.13 - Urban design of Washington, DC.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 36 Parks, Forests, and Public Property 3 2011-07-01 2011-07-01 false Urban design of Washington, DC. 910.13 Section 910.13 Parks, Forests, and Public Property PENNSYLVANIA AVENUE DEVELOPMENT... PENNSYLVANIA AVENUE DEVELOPMENT AREA Urban Planning and Design Concerns § 910.13 Urban design of Washington,...

  18. 36 CFR 910.13 - Urban design of Washington, DC.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false Urban design of Washington, DC. 910.13 Section 910.13 Parks, Forests, and Public Property PENNSYLVANIA AVENUE DEVELOPMENT... PENNSYLVANIA AVENUE DEVELOPMENT AREA Urban Planning and Design Concerns § 910.13 Urban design of Washington,...

  19. 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.

  20. 75 FR 1406 - National Mall and Memorial Parks, Washington, DC; Notice of Availability of an Environmental...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-11

    ... National Park Service National Mall and Memorial Parks, Washington, DC; Notice of Availability of an... Mall Plan, within the National Mall and Memorial Parks in Washington, DC. The National Mall Plan is a..., SW., Washington, DC 20024, and at local libraries around Washington, DC. SUPPLEMENTARY...

  1. 77 FR 74347 - Prevailing Rate Systems; Abolishment of the Washington, DC, Special Wage Schedule for Printing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-14

    ... RIN 3206-AM59 Prevailing Rate Systems; Abolishment of the Washington, DC, Special Wage Schedule for.... Office of Personnel Management is issuing a final rule to abolish the Washington, DC, Federal Wage System... employees in the Washington, DC, wage area will now be paid from the regular Washington, DC,...

  2. 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…

  3. 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…

  4. 36 CFR 1280.60 - Where do I enter the National Archives Building in Washington, DC?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Archives Building in Washington, DC? 1280.60 Section 1280.60 Parks, Forests, and Public Property NATIONAL... for Using NARA Facilities in the Washington, DC, Area? § 1280.60 Where do I enter the National Archives Building in Washington, DC? (a) To conduct research or official business, you must enter...

  5. 36 CFR 1280.60 - Where do I enter the National Archives Building in Washington, DC?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Archives Building in Washington, DC? 1280.60 Section 1280.60 Parks, Forests, and Public Property NATIONAL... for Using NARA Facilities in the Washington, DC, Area? § 1280.60 Where do I enter the National Archives Building in Washington, DC? (a) To conduct research or official business, you must enter...

  6. 77 FR 41247 - Prevailing Rate Systems; Abolishment of the Washington, DC, Special Wage Schedule for Printing...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-13

    ... 3206-AM59 Prevailing Rate Systems; Abolishment of the Washington, DC, Special Wage Schedule for... Washington, DC, Federal Wage System (FWS) special wage schedule for printing and lithographic positions. Printing and lithographic employees in the Washington, DC, wage area will now be paid from the...

  7. 77 FR 68718 - Safety Zone for Fireworks Display, Upper Potomac River, Alexandria Channel; Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-16

    ..., Alexandria Channel; Washington, DC AGENCY: Coast Guard, DHS. ACTION: Notice of proposed rulemaking. SUMMARY... fireworks display launched from a barge located within the Alexandria Channel at Washington, DC. This safety... W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590-0001. Deliveries accepted between 9 a.m....

  8. 36 CFR 1280.60 - Where do I enter the National Archives Building in Washington, DC?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Archives Building in Washington, DC? 1280.60 Section 1280.60 Parks, Forests, and Public Property NATIONAL... for Using NARA Facilities in the Washington, DC, Area? § 1280.60 Where do I enter the National Archives Building in Washington, DC? (a) To conduct research or official business, you must enter...

  9. 76 FR 63841 - Security Zone; Potomac River, Georgetown Channel, Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-14

    ..., Washington, DC AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is... Washington, DC, in order to safeguard high-ranking public officials from terrorist acts and incidents. This... Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except...

  10. 76 FR 34576 - Washington, DC Metropolitan Area Special Flight Rules Area; OMB Approval of Information Collection

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-14

    ... TRANSPORTATION Federal Aviation Administration 14 CFR Parts 1 and 93 RIN 2120-AI17 Washington, DC Metropolitan... certain information collection. The rule titled ``Washington, DC Metropolitan Area Special Flight Rules... Operations Airspace and AIM, 800 Independence Ave., SW., Washington, DC 20591; telephone (202)...

  11. 78 FR 63251 - Board Meeting; November 20, 2013 in Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-23

    ... REVIEW BOARD Board Meeting; November 20, 2013 in Washington, DC The U.S. Nuclear Waste Technical Review..., the U.S. Nuclear Waste Technical Review Board will hold a public meeting in Washington, DC, on...., Washington, DC 20037; Tel. (202) 857-3388. A block of rooms has been reserved at the hotel for...

  12. 36 CFR 1280.60 - Where do I enter the National Archives Building in Washington, DC?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Archives Building in Washington, DC? 1280.60 Section 1280.60 Parks, Forests, and Public Property NATIONAL... for Using NARA Facilities in the Washington, DC, Area? § 1280.60 Where do I enter the National Archives Building in Washington, DC? (a) To conduct research or official business, you must enter...

  13. 75 FR 39969 - National Mall and Memorial Parks, Washington, DC; Final Environmental Impact Statement and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-07-13

    ... National Park Service National Mall and Memorial Parks, Washington, DC; Final Environmental Impact... National Mall and Memorial Parks Headquarters, 900 Ohio Drive, SW., Washington, DC, at local libraries around Washington, DC, and online at http://www.nps.gov/nationalmallplan . FOR FURTHER...

  14. 36 CFR 1280.60 - Where do I enter the National Archives Building in Washington, DC?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... Archives Building in Washington, DC? 1280.60 Section 1280.60 Parks, Forests, and Public Property NATIONAL... for Using NARA Facilities in the Washington, DC, Area? § 1280.60 Where do I enter the National Archives Building in Washington, DC? (a) To conduct research or official business, you must enter...

  15. 78 FR 10562 - Proposed Establishment of Area Navigation (RNAV) Routes; Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-14

    ... (RNAV) Routes; Washington, DC AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of... the Washington, DC, Optimization of Airspace and Procedures in a Metroplex (OAPM) project. The... departures from the Washington, DC Metropolitan area airports. DATES: Comments must be received on or...

  16. 76 FR 51255 - Security Zone; Potomac River, Georgetown Channel, Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-08-18

    ..., Washington, DC AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is... Washington, DC, in order to safeguard high-ranking public officials from terrorist acts and incidents. This... Avenue, SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except...

  17. 77 FR 58439 - Environmental Impact Statement for the Northeast Corridor Between Washington, DC, New York, NY...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-20

    ... Washington, DC, New York, NY and Boston, MA AGENCY: Federal Railroad Administration (FRA), Department of... W12-140, Washington, DC 20590-0001, by hand delivery to West Building Ground Floor, Room W12-140, 1200 New Jersey Ave. SE., Washington, DC (between 9 a.m. and 5 p.m. ET, Monday through Friday,...

  18. 78 FR 9044 - Adequacy Status of the Motor Vehicle Emission Budgets for Metropolitan Washington DC Area (DC-MD...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-07

    ... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL PROTECTION AGENCY Adequacy Status of the Motor Vehicle Emission Budgets for Metropolitan Washington DC Area (DC-MD... EPA's finding, the Washington DC-MD-VA Nonattainment Area for the 1997 8-Hour Ozone National...

  19. A citywide breeding bird survey for Washington, DC

    USGS Publications Warehouse

    Hadidian, J.; Sauer, J.R.; Swarth, C.; Handly, P.; Droege, S.; Williams, C.; Huff, J.; Didden, G.

    1997-01-01

    `DC Birdscape' was initiated in 1993 to systematically count the birds occurring throughout Washington D.C. during the breeding season. It involved a coordinated planning effort and partnership between the Audubon Naturalist Society, the National Park Service, and the National Biological Survey, and engaged the participation of more than 100 volunteers. A method for rapidly assessing the status of bird populations over a large area was developed and incorporated into a Geographic Information System to allow a multidimensional analysis of species presence and abundance across a variety of urban land use areas. A total of 91 species were observed, with an estimated total number of 115, making Washington D.C. almost as `bird rich' as nearby suburban counties. Data from the study clearly indicate that avian species are not randomly distributed throughout the Washington D.C. metropolitan area, and show affinity, at least in part, to some of the most broadly recognized land use patterns that are commonly used to zone and classify urban areas under development schemes. This study represents a prototype that will allow efficient and economical monitoring of urban bird populations.

  20. Black Eyes and Brass Knuckles: Science Policy in Washington DC

    NASA Astrophysics Data System (ADS)

    Slakey, Francis

    2002-04-01

    Washington DC is a majestic and tranquil city, beautifully stationed along the shores of the dazzling Potomac river. Not! The nation's capitol sits in the middle of a drained swamp and it has the most hostile atmosphere this side of Venus. Francis Slakey, a professor of Physics and Biology at Georgetown University and a lobbyist for the American Physical Society, will give an intro to the political process and describe some of the battles waged on behalf of the APS.

  1. Washington, D.C. and the Baltimore, Maryland area

    NASA Technical Reports Server (NTRS)

    1973-01-01

    A vertical view of the Washington, D.C. and the Baltimore, Maryland area is seen in this Skylab 3 Earth Resources Experiments Package S190-B (five-inch earth terrain camera) photograph taken from the Skylab space station in Earth orbit. The Chesapeake Bay is on the right (east) side of the picture. The Potomac River flows through the Washington area in the lower left (southwest) corner of the photograph. Several transportation routes and major highways stand out distinctly. Identifiable features in the Washington area include the Capitol Building, the Mall area, Robert F. Kennedy Stadium (white circle), the five bridges across the Potomac, Andrews Air Force Base (on east loop), and the smaller Anacostia River. Chesapeake Bay circulation patterns are indicated by contrast of dark and light blue. Sediment plumes (red) are seen entering the bay north and east of Baltimore. The bay bridge stands out white against the blue water.

  2. 78 FR 53237 - Establishment of Area Navigation (RNAV) Routes; Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-29

    ...) Routes; Washington, DC AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY... Services, Federal Aviation Administration, 800 Independence Avenue SW., Washington, DC 20591; telephone... Register a notice of ] proposed rulemaking (NPRM) to establish two new RNAV routes in the Washington,...

  3. 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

    ... Washington, DC, New York, NY, and Boston, MA AGENCY: Federal Railroad Administration (FRA), U.S. Department... potential passenger rail improvements between Washington, DC, New York City, and Boston, MA was published in... Scoping meetings held from August 13th through August 22nd at nine different venues between Washington,...

  4. 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

    ... Public Meeting in Washington, DC for the Proposed Keystone XL Project AGENCY: Department of State. ACTION: Notice of final public meeting in Washington, DC for the proposed Keystone XL project. SUMMARY: Following..., DC. Friday, October 7, 2011 Ronald Reagan Building and International Trade Center, Atrium Hall,...

  5. 77 FR 2450 - Security Zone; Potomac and Anacostia Rivers, Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-18

    ..., DC AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a...., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. FOR FURTHER... officials will take place at the U.S. Capitol Building in Washington, DC, in close proximity to...

  6. 78 FR 29615 - Establishment of Area Navigation (RNAV) Routes; Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-21

    ... (RNAV) Routes; Washington, DC AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: This action establishes five new RNAV routes in support of the Washington, DC, Optimization of..., DC Metropolitan area airports. DATES: Effective date 0901 UTC, August 22, 2013. The Director of...

  7. 77 FR 64943 - Security Zone, Potomac and Anacostia Rivers; Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-24

    ..., DC AGENCY: Coast Guard, DHS. ACTION: Notice of proposed rulemaking. SUMMARY: The Coast Guard proposes... the Presidential Inauguration in Washington, DC from January 15, 2013 through January 24, 2013. This... W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590-0001. Deliveries accepted between 9 a.m....

  8. 77 FR 70964 - Security Zone, Potomac and Anacostia Rivers; Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-28

    ..., DC AGENCY: Coast Guard, DHS. ACTION: Supplemental notice of proposed rulemaking. SUMMARY: This action... with the Presidential Inauguration in Washington, DC from January 15, 2013 through January 24, 2013 (77... Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590-0001. Deliveries...

  9. DCShake: Measuring Variations in Earthquake Ground Motions in Washington, DC

    NASA Astrophysics Data System (ADS)

    Pratt, T. L.; Horton, J. W., Jr.; Hough, S. E.; Munoz, J.; Chapman, M. C.; Olgun, G.; Beale, J.

    2015-12-01

    During the 2011 Mw5.8 Mineral, VA earthquake, many buildings in Washington DC, including national landmarks like the Washington National Cathedral, the Smithsonian "Castle," and the Washington Monument, sustained damage despite being 130 km from the epicenter. The surprisingly large amount of damage from weak bedrock ground motions raises questions of whether and how the local geologic materials beneath the city amplify ground motions. In particular, how much and at what frequencies do the southeast-thickening sedimentary strata of the Atlantic Coastal Plain (ACP) strata, sitting on crystalline bedrock, amplify and possibly trap energy? Between November 2014 and August 2015, we used 27 seismometers to measure ground motions across the city during teleseismic and regional earthquakes. Four sites on Piedmont crystalline rocks in NW Washington served as bedrock reference sites, and 23 sites were on ACP strata between 11 m and 200 m thick. Recordings of teleseisms and regional earthquakes provide data with sufficiently high signal-to-noise for computing spectral ratios of the horizontal ground shaking relative to the average of the 4 bedrock sites. Preliminary results are consistent with the primary influence on the amplitudes of ground motions coming from the ACP strata. At frequencies below 1 Hz most sites showed little difference in amplification relative to bedrock, suggesting that basement rocks beneath the ACP strata exert little influence on ground shaking. Strong spectral amplifications of a factor or 10 or greater at frequencies of 1 Hz and above are interpreted as being caused by the ACP strata, with the largest amplitudes at frequencies near the fundamental resonance frequency. A gradual decrease in amplification with higher frequencies above the fundamental peak is consistent with harmonics and resonances from within ACP strata. Results indicate significant amplification of ground motions in the DC area, the frequencies of which will be compared to the

  10. 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.

  11. Three-dimensional modeling of fecal coliform in the Tidal Basin and Washington Channel, Washington, DC.

    PubMed

    Bai, Sen; Lung, Wu-Seng

    2006-01-01

    Fecal coliform are widely used as bacterial indicator in the United States and around the world. Fecal coliform impaired water is highly possible to be polluted by pathogenic bacteria. The Tidal Basin and Washington Channel in Washington, DC are on the Total Maximum Daily Load (TMDL) list due to the high fecal coliform level. To support TMDL development, a three-dimensional numerical model of fecal coliform was developed using the EFDC framework. The model calculates the transport of fecal coliform under the influences of flap gate operations and tidal elevation. The original EFDC code was modified to calculate the die-off of fecal coliform under the impact of temperature and solar radiation intensity. The watershed contribution is expressed as storm water inflow and the load carried by the runoff. Model results show that fecal coliform vary strongly in space in both the Tidal Basin and Washington Channel. The storm water only impacts a small area around the storm water outfall in the Tidal Basin and the impacts are negligible in the Washington Channel due to dilution. The water from the Potomac River may affect the fecal coliform level in the area close to the flap gate in the Tidal Basin. The fecal coliform level in the Washington Channel is mainly controlled by the fecal coliform level in the Anacostia River, which is located at the open boundary of the Washington Channel. The potential sediment layer storage of fecal coliform was analyzed and it was found that the sediment layer fecal coliform level could be much higher than the water column fecal coliform level and becomes a secondary source under high bottom shear stress condition. The developed model built solid connection of fecal coliform source and concentration in the water column and has been used to develop TMDL.

  12. 33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 2 2011-07-01 2011-07-01 false Security Zone; Georgetown Channel, 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)...

  13. 78 FR 63250 - Workshop; November 18-19, 2013 in Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-10-23

    ... From the Federal Register Online via the Government Publishing Office NUCLEAR WASTE TECHNICAL REVIEW BOARD Workshop; November 18-19, 2013 in Washington, DC The U.S. Nuclear Waste Technical Review... Suites, 1250 22nd Street NW., Washington, DC 20037; (Tel) 202-857-3388, (Fax) 202-293-3173. A block...

  14. 33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 2 2012-07-01 2012-07-01 false Security Zone; Georgetown Channel, 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)...

  15. 33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 2 2014-07-01 2014-07-01 false Security Zone; Georgetown Channel, 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)...

  16. 33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Security Zone; Georgetown Channel, 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)...

  17. 78 FR 1753 - Security Zone, Potomac and Anacostia Rivers; Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-09

    ..., DC AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a..., 1200 New Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday...-ranking United States officials is expected to take place at the U. S. Capitol Building in Washington,...

  18. 33 CFR 165.508 - Security Zone; Georgetown Channel, Potomac River, Washington, DC.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 2 2013-07-01 2013-07-01 false Security Zone; Georgetown Channel, 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)...

  19. 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.

  20. The Washington DC Metro Area Lightning Mapping Array

    NASA Astrophysics Data System (ADS)

    Krehbiel, P.; Rison, W.; Edens, H.; O'Connor, N.; Aulich, G.; Thomas, R.; Kieft, S.; Goodman, S.; Blakeslee, R.; Hall, J.; Bailey, J.

    2006-12-01

    During the spring and summer of 2006, a network of eight lightning mapping stations has been set up in the greater DC metropolitan area to monitor the total lightning activity in storms over Virginia, Maryland and the Washington DC area. The network is a joint project between New Mexico Tech, NASA, and NOAA/National Weather Service, with real-time data being provided to the NWS for use in their forecast and warning operations. The network utilizes newly available portable stations developed with support from the National Science Foundation. Cooperating institutions involved in hosting the mapping stations are Howard University, Montgomery County Community College in Rockville MD, NOAA/NWS's Test and Evaluation Site in Sterling, VA, College of Southern Maryland near La Plata MD, the Applied Physics Laboratory of Johns Hopkins University, Northern Virginia Community College in Annandale, VA, the University of Maryland at Baltimore County, and George Mason University (Prince William Campus) in Manassas, VA. The network is experimental in that its stations a) operate in the upper rather than the lower VHF (TV channel 10, 192-198 MHz) to reduce the radio frequency background noise associated with urban environments, and b) are linked to the central processing site via the internet rather than by dedicated wireless communication links. The central processing is done in Huntsville, AL, and updated observations are sent to the National Weather Service every 2 min. The observational data will also be available on a public website. The higher operating frequency results in a decrease in signal strength estimated to be about 15-20 dB, relative to the LMA networks being operated in northern Alabama and central Oklahoma (which operate on TV channels 5 and 3, respectively). This is offset somewhat by decreased background noise levels at many of the stations. The detection threshold levels range from about -95 dBm up to -80 dBm and the peak lightning signals typically extend 15

  1. The Washington DC Metro Area Lightning Mapping Array

    NASA Technical Reports Server (NTRS)

    Krehbiel, Paul; Rison, William; Edens, Harald; OConnor, Nicholas; Aulich, Graydon; Thomas, Ronald; Kieft, Sandra; Goodman, Steven; Blakeslee, Richard; Hall, John; Bailey, Jeff

    2006-01-01

    During the spring and summer of 2006, a network of eight lightning mapping stations has been set up in the greater DC metropolitan area to monitor the total lightning activity in storms over Virginia, Maryland and the Washington DC area. The network is a joint project between New Mexico Tech, NASA, and NOAA/National Weather Service, with real-time data being provided to the NWS for use in their forecast and warning operations. The network utilizes newly available portable stations developed with support from the National Science Foundation. Cooperating institutions involved in hosting mapping stations are Howard University, Montgomery County Community College in Rockville MD, NOAA/NWS's Test and Evaluation Site in Sterling, VA, College of Southern Maryland near La Plata MD, the Applied Physics Laboratory of Johns Hopkins University, Northern Virginia Community College in Annandale, VA, the University of Maryland at Baltimore County, and George Mason University (Prince William Campus) in Manassas, VA. The network is experimental in that its stations a) operate in the upper rather than the lower VHF (TV channel 10, 192-198 MHz) to reduce the radio frequency background noise associated with urban environments, and b) are linked to the central processing site via the internet rather than by dedicated wireless communication links. The central processing is done in Huntsville, AL, and updated observations are sent to the National Weather Service every 2 min. The observational data will also be available on a public website. The higher operating frequency results in a decrease in signal strength estimated to be about 15-20 dB, relative to the LMA networks being operated in northern Alabama and central Oklahoma (which operate on TV channels 5 and 3, respectively). This is offset somewhat by decreased background noise levels at many stations. The receiver threshold levels range from about -95 dBm up to -80 dBm and the peak lightning signals typically extend 15-20 dB above

  2. 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

    ... in Washington, DC AGENCY: Federal Highway Administration (FHWA), DOT. ACTION: Notice of Limitation on...)(1). The actions relate to the proposed Klingle Valley Trail project in Northwest Washington, DC.../Urban Engineer, 1990 K Street, NW., Suite 510, Washington, DC 20006-1103, (202) 219-3536; or...

  3. 36 CFR 1280.71 - What are the general rules for using NARA property in the Washington, DC, area?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... for using NARA property in the Washington, DC, area? 1280.71 Section 1280.71 Parks, Forests, and... Rules Apply to Use NARA Public Areas in the Washington, DC, Area? General § 1280.71 What are the general rules for using NARA property in the Washington, DC, area? In addition to the rules listed in Subparts...

  4. 36 CFR 1280.71 - What are the general rules for using NARA property in the Washington, DC, area?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... using NARA property in the Washington, DC, area? 1280.71 Section 1280.71 Parks, Forests, and Public... Apply to Use NARA Public Areas in the Washington, DC, Area? General § 1280.71 What are the general rules for using NARA property in the Washington, DC, area? In addition to the rules listed in Subparts A,...

  5. 36 CFR 1280.71 - What are the general rules for using NARA property in the Washington, DC, area?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... for using NARA property in the Washington, DC, area? 1280.71 Section 1280.71 Parks, Forests, and... Rules Apply to Use NARA Public Areas in the Washington, DC, Area? General § 1280.71 What are the general rules for using NARA property in the Washington, DC, area? In addition to the rules listed in Subparts...

  6. 36 CFR 1280.71 - What are the general rules for using NARA property in the Washington, DC, area?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... for using NARA property in the Washington, DC, area? 1280.71 Section 1280.71 Parks, Forests, and... Rules Apply to Use NARA Public Areas in the Washington, DC, Area? General § 1280.71 What are the general rules for using NARA property in the Washington, DC, area? In addition to the rules listed in Subparts...

  7. 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

    ... for using NARA property in the Washington, DC, area? 1280.71 Section 1280.71 Parks, Forests, and... Rules Apply to Use NARA Public Areas in the Washington, DC, Area? General § 1280.71 What are the general rules for using NARA property in the Washington, DC, area? In addition to the rules listed in Subparts...

  8. 78 FR 4790 - Security Zone, Potomac and Anacostia Rivers; Washington, DC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-01-23

    ..., DC AGENCY: Coast Guard, DHS. ACTION: Temporary final rule. SUMMARY: The Coast Guard is establishing a... Building, 1200 New Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through..., DC'' in the Federal Register (77 FR 64943). After the NPRM was published in the Federal...

  9. 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

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

    SciTech Connect

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

    1996-03-01

    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, 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.

  11. Characterizing the pre-Space Age ionosphere over Washington, DC

    NASA Astrophysics Data System (ADS)

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

    2014-08-01

    The study of long-term changes requires researchers to identify relevant historical measurements; quantifying and quality controlling these measurements becomes central to their utilization by broader communities. This pilot study reports on the evaluation of ionograms and their inversion from the decade prior to the Space Age. The ionograms were recorded on 35 mm film reels and archived at the National Geophysical Data Center World Data Center A in Boulder, Colorado. For this study, ionogram film from one of the earliest operational sites in North America, Fort Belvoir (near Washington, DC), is analyzed. This analysis generates two distinct products: a digital ionogram with virtual height and frequency coordinate registration, and scaled values including an electron density profile. Validation of the ionogram registration and its resolution are described. The scaling and inversion processing, including uncertainties for the parameters and quality assessment, are explained. This study demonstrates how the archived film ionograms can have extensive value as historic measurements of the ionosphere once they are digitized and coordinate registered. Furthermore, modern analysis of the ionograms shows that a complete bottomside ionospheric specification may be obtained at better time resolution than is typically available from original scaled data. This research has set the stage for an effective recovery of ionospheric information for almost a full solar cycle prior to International Geophysical Year. In addition, between Fort Belvoir and Wallops Island archives, an East Coast midlatitude ionospheric data set can be generated from the late 1940s through the present.

  12. Spacelab being closed up for move to Washington, DC

    NASA Technical Reports Server (NTRS)

    1998-01-01

    In the Operations and Checkout Building, Rainer Goercke shakes hands with Norman Jatz in front of the Spacelab Module MD001 as they prepare to close it for the last time before shipment to the National Air and Space Museum in Washington, DC. Goercke and Jatz have been on the Spacelab program since 1979 and were part of the team that first unloaded the module at KSC. Goercke is the only remaining European representative from the German-based Spacelab contractor, ERNO, and Jatz is a mechanical engineering lead from Boeing. Spacelab was designed by the European Space Agency (ESA) for the Space Shuttle program. It first flew on STS-9 in November 1983 and its final flight was the STS-90 Neurolab mission in April 1998. The 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.

  13. Spacelab being closed up for move to Washington, DC

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Jim Dumoulin, NASA Payload Electrical Systems engineer, crawls out of the Spacelab module for the last time after stowing some equipment for its final trip to the National Air and Space Museum in Washington, DC. He has worked on the Spacelab program since its first launch on STS-9 in November 1983 as part of the NASA Civil Service Level IV experiment integration team. Spacelab was designed by the European Space Agency (ESA) for the Space Shuttle program. Its final flight was the STS-90 Neurolab mission in April 1998. 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.

  14. Spacelab being closed up for move to Washington, DC

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Viewed looking forward, this Spacelab module is empty now, being prepared in the Operations & Checkout Building for shipment to the National Air and Space Museum in Washington, DC. Visible on the floor are the foot restraints used by astronauts to keep them stationary while conducting experiments. Spacelab was designed by the European Space Agency (ESA) for the Space Shuttle program. It first flew on STS-9 in November 1983 and its final flight was the STS-90 Neurolab mission in April 1998. 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.

  15. Spacelab being closed up for move to Washington, DC

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Viewed looking aft, this Spacelab module is empty now, being prepared in the Operations & Checkout Building for shipment to the National Air and Space Museum in Washington, DC. Visible on the floor are the foot restraints used by astronauts to keep them stationary while conducting experiments. Spacelab was designed by the European Space Agency (ESA) for the Space Shuttle program. It first flew on STS-9 in November 1983 and its final flight was the STS-90 Neurolab mission in April 1998. 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.

  16. Spacelab being closed up for move to Washington, DC

    NASA Technical Reports Server (NTRS)

    1998-01-01

    A closeup view of the hatch to this Spacelab module shows an empty interior as the module is being prepared in the Operations & Checkout Building for shipment to the National Air and Space Museum in Washington, DC. Visible on the floor are the foot restraints used by astronauts to keep them stationary while conducting experiments. Spacelab was designed by the European Space Agency (ESA) for the Space Shuttle program. It first flew on STS-9 in November 1983 and its final flight was the STS-90 Neurolab mission in April 1998. 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.

  17. Spacelab being closed up for move to Washington, DC

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Spacelab Module MD001 (foreground) and its sister module (behind it) are prepared for shipment to the National Air and Space Museum in Washington, DC. Spacelab was designed by the European Space Agency (ESA) for the Space Shuttle program. It first flew on STS-9 in November 1983 and its final flight was the STS-90 Neurolab mission in April 1998. The 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.

  18. Spacelab being closed up for move to Washington, DC

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Two Spacelab modules (end to end) are made ready in the Operations and Checkout Building for shipment 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. The sister module (first in line) 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.

  19. 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)

  20. Space radar image of Washington, D.C.

    NASA Technical Reports Server (NTRS)

    1995-01-01

    This radar image of the Washington, D.C. area demonstrates the capability of imaging radar as a useful tool for urban planners and managers to map and monitor land use patterns. The image was acquired by the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR) aboard the space shuttle Endeavour on its 150th orbit on April 18, 1994. North is toward the upper right. The Potomac River enters the scene at the top of the image, widens near the center of the image, then runs south and west off the left side of the image. Downtown Washington appears near the center, just to the right of the point where the river widens. The image shows an area 50.3 kilometers by 45.0 kilometers (31.2 miles by 27.9 miles) that is centered at 38.9 degrees north latitude and 77.1 degrees west longitude. The radar illumination is from the left side of the image. The image shows a single channel of SIR-C radar data: L-band, horizontally transmitted and received. State and city boundaries are also visible in the image. Virginia is to the left (southwest) of the Potomac River. Maryland and the District of Columbia are to the right (northeast). The avenues that form the boundary between Maryland and the District of Columbia appear as bright lines because the radar strikes the walls of buildings along the avenues at a perpendicular angle. The dark strip near the center of the image is the National Mall, and the Ellipse and White House grounds can be seen as an adjacent dark patch. The Capital Beltway highway appears as a thin black strip encircling the city. The large dark rectangle near the bottom of the image is Andrews Air Force Base, home of the presidential plane Air Force One. Dark patches to the right of the image represent some of the few remaining agricultural areas in this rapidly expanding metropolitan area.

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

    SciTech Connect

    Berg, Larry K.; Allwine, K Jerry

    2006-06-20

    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 located 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; and wind

  2. CO2 Network Design for Washington DC/Baltimore

    NASA Astrophysics Data System (ADS)

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

    2015-12-01

    The North-East Corridor project aims to use a top-down inversion method to quantify sources of Greenhouse Gas (GHG) emissions in the urban areas of Washington DC and Baltimore at approximately 1km2 resolutions. The aim of this project is to help establish reliable measurement methods for quantifying and validating GHG emissions independently of the inventory methods typically used to guide mitigation efforts. Since inversion methods depend on atmospheric observations of GHG, deploying a suitable network of ground-based measurement stations is a fundamental step in estimating emissions from the perspective of the atmosphere with reasonable levels of uncertainty. The purpose of this work is to design a tower based network of measurement stations that can reduce the uncertainty in emissions by 50% in the central areas of DC and Baltimore. To this end, the Weather Research and Forecasting Model (WRF-ARW) was used along with the Stochastic Time-Inverted Lagrangian Transport model (STILT) to derive the sensitivity of hypothetical observations to surface emissions (footprints) for the months of February and July 2013. An iterative selection algorithm, based on k-means clustering method, was applied in order to minimize the similarities between the temporal response of each site and maximize the urban contribution. Afterwards, a synthetic inversion Kalman Filter was used to evaluate the performances of the observing system based on the merit of the retrieval over time and the amount of a priori uncertainty reduced by the network. We present the performances of various measurement networks that consist of different number of towers and where the location of these towers vary. Results show that too compact networks lose spatial coverage whilst too spread networks lose capabilities of constraining uncertainties in the fluxes. In addition, we explore the possibility of using a very high density network of low-cost, low-accuracy sensors characterized by larger uncertainties and

  3. EPA to Hold Public Hearing in Washington, D.C. on Risk Management Program Proposed Rule

    EPA Pesticide Factsheets

    WASHINGTON - Tomorrow, Tuesday March 29, the U.S. Environmental Protection Agency will hold a public hearing on the proposed Risk Management Program (RMP) rule. The hearing will be held at EPA Headquarters in Washington, D.C., and will provide the o

  4. Historical contamination of the Anacostia River, Washington, D.C.

    PubMed

    Velinsky, David J; Riedel, Gerhardt F; Ashley, Jeffrey T F; Cornwell, Jeffrey C

    2011-12-01

    The tidal Anacostia River in Washington DC has long been impacted by various sources of chemical pollution over the past 200 years. To explore more recent inputs of various chemicals, six sediment cores were collected for dating and chemical analysis in the downstream section of the tidal Anacostia River. Profiles of contaminants in sediment cores can be useful in determining management direction and effectiveness of pollution controls over time. There were two main objectives for this investigation: (1) determine current sediment contaminant levels; (2) determine a historical perspective of the sediment changes in contamination using (137)Cs and (210)Pb dating. The determination of an age-depth relationship using (210)Pb and (137)Cs dating gave somewhat different results, suggesting that the assumptions of (210)Pb dating were not met. Using the (137)Cs horizon allowed an assignment of approximate sediment accumulation rates and hence an age-depth relationship to contaminant events in the upper portions of the cores. Total PAHs showed higher concentrations at depth and lower surface concentrations. In the upper sections, PAHs were a mixture of combustion and petrogenic sources, while at depth the signature appeared to be of natural origins. Total PCBs, DDTs and chlordane concentrations showed a maximum in recent sediments, decreasing towards the surface. PCBs had lower molecular weight congeners near the surface and higher molecular weights at depth. A phthalate ester, DEHP, appeared in the mid 1940-1950s, and decreased towards the surface. Trace elements fell roughly into three groups. Fe, Mn, and As were in approximately constant proportion to Al, except in some deeper, sandy sediments, where they showed enrichments linked to redox conditions. Ag, Cd, Cu, Hg, Pb, and Zn had low concentrations in the deepest sediments, high concentrations at mid-depths, and declines to intermediate levels at the surface. Ni and Cr followed neither of these patterns closely. We

  5. 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.

  6. First Results from the Washington D.C. Metropolitan Area Lighting Map Demonstration Project

    NASA Technical Reports Server (NTRS)

    Goodman, Steven J.; Blakeslee, Richard J.; Hall, John; Krehbiel, Paul; Rison, Bill; Zubrick, Steven

    2007-01-01

    An experimental portable lightning mapping array (LMA) operating in the upper VHF TV band (Channels 7-13; 174-216 MHz) was deployed in the Washington DC Metropolitan area during the summer 2006 to locate and monitor the overall lightning activity. The LMA network provides total lightning data to support lightning research as well as proxy data to benefit the development of applications for planned observing systems such as the GOES-R Geostationary Lightning Mapper. The portable LMA hardware is a compactly-housed, easily deployed version of the LMA stations installed North Alabama, Oklahoma, and New Mexico, which operate in the lower VHF TV band (Channels 2-6,54-88 MHz). Real-time LMA data products are provided to the National Weather Service Weather Forecast Office (WFO) in Sterling, VA to aid in their forecast and warning operations. Forecasters at WFO Sterling have already found the lightning data from the Washington DC demonstration network to be very useful in assessing the development of storm systems. On July 4,2006, data from the LMA aided forecasters as they monitored an area of convection that later developed into a line of severe storms that moved southward through the Washington DC metropolitan area across the Washington Mall. Additional applications of lightning mapping data in the Baltimore-Washington DC urban environment will be discussed.

  7. First Results From The Washington DC Metropolitan Area Lightning Mapping Demonstration Project

    NASA Astrophysics Data System (ADS)

    Goodman, S. J.; Blakeslee, R. J.; Hall, J.; Krehbiel, P.; Rison, B.; Zubrick, S.

    2006-12-01

    An experimental portable lightning mapping array (LMA) operating in the upper VHF TV band (Channels 7-13; 174-216 MHz) was deployed in the Washington DC Metropolitan area during the summer 2006 to locate and monitor the overall lightning activity. The LMA network provides total lightning data to support lightning research as well as proxy data to benefit the development of applications for planned observing systems such as the GOES-R Geostationary Lightning Mapper. The portable LMA hardware is a compactly-housed, easily deployed version of the LMA stations installed North Alabama, Oklahoma, and New Mexico, which operate in the lower VHF TV band (Channels 2-6, 54-88 MHz). Real-time LMA data products are provided to the National Weather Service Weather Forecast Office (WFO) in Sterling, VA to aid in their forecast and warning operations. Forecasters at WFO Sterling have already found the lightning data from the Washington DC demonstration network to be very useful in assessing the development of storm systems. On July 4, 2006, data from the LMA aided forecasters as they monitored an area of convection that later developed into a line of severe storms that moved southward through the Washington DC metropolitan area across the Washington Mall. Additional applications of lightning mapping data in the Baltimore-Washington DC urban environment will be discussed.

  8. 36 CFR 1254.84 - How may I use a debit card for copiers 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 How may I use a debit card for copiers in the Washington, DC, area? 1254.84 Section 1254.84 Parks, Forests, and Public Property... use a debit card for copiers in the Washington, DC, area? Your research identification card can...

  9. 36 CFR 1254.84 - How may I use a debit card for copiers in the Washington, DC, area?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 36 Parks, Forests, and Public Property 3 2014-07-01 2014-07-01 false How may I use a debit card for copiers in the Washington, DC, area? 1254.84 Section 1254.84 Parks, Forests, and Public Property... use a debit card for copiers in the Washington, DC, area? Your research identification card can...

  10. 36 CFR 1254.84 - How may I use a debit card for copiers in the Washington, DC, area?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 36 Parks, Forests, and Public Property 3 2013-07-01 2012-07-01 true How may I use a debit card for copiers in the Washington, DC, area? 1254.84 Section 1254.84 Parks, Forests, and Public Property NATIONAL... debit card for copiers in the Washington, DC, area? Your research identification card can be used as...

  11. 36 CFR 1254.84 - How may I use a debit card for copiers in the Washington, DC, area?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 36 Parks, Forests, and Public Property 3 2010-07-01 2010-07-01 false How may I use a debit card for copiers in the Washington, DC, area? 1254.84 Section 1254.84 Parks, Forests, and Public Property... use a debit card for copiers in the Washington, DC, area? Your research identification card can...

  12. 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

    ... 22 Foreign Relations 1 2014-04-01 2014-04-01 false Application for Compensation United States Agency for International Development Washington, DC 20523 A Appendix A to Part 233 Foreign Relations... Washington, DC 20523 Ref: Guarantee dated as of ___, 20__: Gentlemen: You are hereby advised that payment...

  13. 36 CFR 1254.84 - How may I use a debit card for copiers in the Washington, DC, area?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 36 Parks, Forests, and Public Property 3 2012-07-01 2012-07-01 false How may I use a debit card for copiers in the Washington, DC, area? 1254.84 Section 1254.84 Parks, Forests, and Public Property... use a debit card for copiers in the Washington, DC, area? Your research identification card can...

  14. 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…

  15. Drug Treatment in New York City and Washington, D.C.: Followup Studies.

    ERIC Educational Resources Information Center

    Burt Associates, Inc., Bethesda, MD.

    This report assesses the experiences of clients who had contact with or received drug abuse treatment from programs of the Addiction Services Agency in New York City and the Narcotics Treatment Administration in Washington, D.C. during the early 1970's. To answer the questions of what happens to former clients once they leave drug treatment…

  16. Unmarried Black Adolescent Fathers and Their Controls: The Washington, D.C. Sample.

    ERIC Educational Resources Information Center

    Hendricks, Leo E.

    This document is the final report of a study of Black, unmarried adolescent fathers and matched counterparts designed to identify and describe quantitatively the difficulties they faced and their methods for solving the problems. The data were secured through a nonprobability sample of 38 fathers and 35 non-fathers in Washington, D.C. Data were…

  17. Not a Pretty Picture: Toxics in Art Supplies in Washington, DC Area Public Schools.

    ERIC Educational Resources Information Center

    Gilbert, Pamela

    A study revealed that some of the art and craft supplies being used by most Washington, D.C. area public school districts (City of Alexandria, Arlington and Fairfax counties--Virginia; Montgomery and Prince George's counties--Maryland; and the District of Columbia) contained toxic ingredients which could cause serious, long-term damage, sterility,…

  18. 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…

  19. Groundwater site identification indexes for Washington, D.C., Baltimore City, and the counties of Maryland

    USGS Publications Warehouse

    LaMotte, Andrew E.

    2010-01-01

    These datasets represent 23 geographic 5-minute indexes for the counties of Maryland, one 2 1/2-minute index for Washington D.C., and 1-mile square index for Baltimore City. There are 25 vector polygon datasets covered by this metadata report.

  20. 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…

  1. 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)…

  2. 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…

  3. 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…

  4. 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.

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

    SciTech Connect

    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.

  6. Water from the Coastal Plain aquifers in the Washington, D.C., metropolitan area

    USGS Publications Warehouse

    Papadopulos, S.S.; Bennett, R.R.; Mack, F.K.; Trescott, P.C.

    1974-01-01

    A brief study of the Atlantic Coastal Plain aquifers in the vicinity of the Washington, D.C., metropolitan area was made, using available data, to estimate the water-supply potential of these aquifers and to determine the possibility of developing an emergency water supply during droughts. Assuming that the data available are representative, the study indicates that the water-supply potential of these aquifers, within an assumed 30-mile radius of Washington, D.C., is about 170 million gallons per day. That is, these aquifers, which are now furnishing an estimated 60 million gallons per day, could be developed to supply an additional 110 million gallons per day on a continuous basis. This quantity might be even larger if a significant amount of water is derived from leakage through finer grained confining beds, but further studies would be necessary to determine the amount of leakage and the long-term effects of large-scale continuous use. Furthermore, under intermittent pumping conditions, an assumed emergency supply of 100 million gallons per day could probably be developed from well fields within a 30-mile radius of Washington. An exploration and testing program would be necessary to assess the reliability of these preliminary estimates.

  7. 2001 anthrax crisis in Washington, D.C.: pharmacists' role in screening patients and selecting prophylaxis.

    PubMed

    Montello, Michael J; Ostroff, Craig; Frank, Ellen C; Haffer, Andrew S T; Rogers, James R

    2002-06-15

    Pharmacists' development and use of a worksheet facilitating their rapid selection of patient-appropriate prophylactic antimicrobials in an anthrax clinic is described. A clinic housed at D.C. General Hospital, in Washington, D.C., treated most of the people--many of them postal workers--who may have been exposed to anthrax in that city during the 2001 anthrax crisis. A form was needed to assist pharmacists in the rapid selection of prophylactic antimicrobials and in patient education and counseling. A team of pharmacists collaborated on the development of a form tailored to the clinical and logistical needs of the operation. The questions on the form were based largely on the two antianthrax agents most likely to be used, ciprofloxacin and doxycycline, and were designed to identify the circumstances that would most frequently require a medication change or a modification of patient education. Yes-or-no check boxes allowed pertinent data to be captured most efficiently. A positive response to any question triggered a personal interview and assessment by a pharmacist. A treatment algorithm was also developed to ensure consistent pharmacist selection of agents in the face of potentially changing policies and staff. The worksheet questions sought to establish treatment objectives, document allergies and concomitant therapies, and identify patients who were pregnant or lactating. Pharmacists developed a patient-screening worksheet that helped determine their choice of treatment for people who may have been exposed to anthrax in Washington, D.C., during the 2001 anthrax crisis.

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

    SciTech Connect

    Miller, Naomi J.; Rosenfeld, Scott M.

    2012-06-22

    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 usign LED replacement lamps in art galleries housing national treasures.

  9. Gen-X junkie: ethnographic research with young White heroin users in Washington, DC.

    PubMed

    Pierce, T G

    1999-12-01

    Through ethnographic research with injection drugs users (IDUs), the author presents a discussion on the network dynamics of young White heroin users from the Washington, DC, metropolitan area. An analysis of who the users are, how their networks form, how they change over time, and how they dissolve are presented in comparison the the dynamics of an older Black IDU network from the same area. Significant differences between these two types of networks shed light on important issues surrounding drug use and HIV risk, and aid in directing future research efforts in this field of study.

  10. Health Hazard Evaluation Report HETA 85-307-1608, Frances Perkins Building, Washington, DC

    SciTech Connect

    Lee, S.A.

    1985-07-01

    Environmental and breathing-zone samples were analyzed for carbon dioxide and carbon-monoxide at the Frances Perkins Building, Washington, DC in May, 1985. The evaluation was requested by the employees who were concerned about the possible lack of fresh air and potential CO contamination in their offices from indoor parking garages and the nearby Interstate 395 tunnel. Ventilation specifications of the building were reviewed. The author concludes that there is no hazard from lack of fresh air or CO in the building. The author recommends monitoring indoor CO, especially during periods of stagnant weather during the summer months and adjusting the ventilation system to minimize CO concentrations if necessary.

  11. Washington D.C. Lightning Mapping Array Demonstration Project Risk Reduction for GOES Lightning Mapper Data

    NASA Technical Reports Server (NTRS)

    Smith, Stephan B.; Goodman, Steven; Krehbiel, Paul

    2007-01-01

    A 10-site, ground-based total lightning mapping array (LMA) has been installed in the Washington D.C. metropolitan area in 2006. The total lightning data from DC LMA are being processed in real-time and derived products are being provided to the forecasters of the National Weather Service (NWS) forecast office in Sterling, Virginia. The NWS forecasters are using the products to monitor convective activity along with conventional radar and satellite products. Operational experience with these products is intended to inform decision making in how to best utilize in NWS operations similar data available from the GOES Lightning Mapper. The paper will discuss specifics of the LMA as well as proposed research into use of total lightning data in predicting and warning for cloud-to-ground lightning.

  12. 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.

  13. 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!

  14. 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

    SciTech Connect

    None, None

    2013-07-01

    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

  15. 22 CFR Appendix D to Part 62 - Annual Report-Exchange Visitor Program Services (GC/V), Department of State, Washington, DC 20547...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Annual Report-Exchange Visitor Program Services (GC/V), Department of State, Washington, DC 20547, (202-401-7964) D Appendix D to Part 62 Foreign..., Washington, DC 20547, (202-401-7964) Exchange Visitor Program No. ___ Reporting Period ___ Provide Range...

  16. 22 CFR Appendix D to Part 62 - Annual Report-Exchange Visitor Program Services (GC/V), Department of State, Washington, DC 20547...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 22 Foreign Relations 1 2011-04-01 2011-04-01 false Annual Report-Exchange Visitor Program Services (GC/V), Department of State, Washington, DC 20547, (202-401-7964) D Appendix D to Part 62 Foreign..., Washington, DC 20547, (202-401-7964) Exchange Visitor Program No. ___ Reporting Period ___ Provide Range...

  17. 22 CFR Appendix D to Part 62 - Annual Report-Exchange Visitor Program Services (GC/V), Department of State, Washington, DC 20547...

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 22 Foreign Relations 1 2012-04-01 2012-04-01 false Annual Report-Exchange Visitor Program Services (GC/V), Department of State, Washington, DC 20547, (202-401-7964) D Appendix D to Part 62 Foreign..., Washington, DC 20547, (202-401-7964) Exchange Visitor Program No. ___ Reporting Period ___ Provide Range...

  18. 22 CFR Appendix D to Part 62 - Annual Report-Exchange Visitor Program Services (GC/V), Department of State, Washington, DC 20547...

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 22 Foreign Relations 1 2013-04-01 2013-04-01 false Annual Report-Exchange Visitor Program Services (GC/V), Department of State, Washington, DC 20547, (202-401-7964) D Appendix D to Part 62 Foreign..., Washington, DC 20547, (202-401-7964) Exchange Visitor Program No. ___ Reporting Period ___ Provide Range...

  19. 22 CFR Appendix D to Part 62 - Annual Report-Exchange Visitor Program Services (GC/V), Department of State, Washington, DC 20547...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 22 Foreign Relations 1 2014-04-01 2014-04-01 false Annual Report-Exchange Visitor Program Services (GC/V), Department of State, Washington, DC 20547, (202-401-7964) D Appendix D to Part 62 Foreign..., Washington, DC 20547, (202-401-7964) Exchange Visitor Program No. ___ Reporting Period ___ Provide Range...

  20. Meeting Summary Advanced Light Water Reactor Fuels Industry Meeting Washington DC October 27 - 28, 2011

    SciTech Connect

    Not Listed

    2011-11-01

    The Advanced LWR Fuel Working Group first met in November of 2010 with the objective of looking 20 years ahead to the role that advanced fuels could play in improving light water reactor technology, such as waste reduction and economics. When the group met again in March 2011, the Fukushima incident was still unfolding. After the March meeting, the focus of the program changed to determining what we could do in the near term to improve fuel accident tolerance. Any discussion of fuels with enhanced accident tolerance will likely need to consider an advanced light water reactor with enhanced accident tolerance, along with the fuel. The Advanced LWR Fuel Working Group met in Washington D.C. on October 72-18, 2011 to continue discussions on this important topic.

  1. Housing stability and recovery among chronically homeless persons with co-occuring disorders in Washington, DC.

    PubMed

    Tsemberis, Sam; Kent, Douglas; Respress, Christy

    2012-01-01

    Pathways Housing First provides access to housing, support, and treatment services to clients having the most complex needs-persons who have been homeless for at least 5 years and have both a psychiatric disability and substance dependency. In a 2-year Housing and Urban Development-funded demonstration project in Washington, DC, in 2007 and 2008, we observed promising outcomes in housing retention and reductions in psychiatric symptoms, alcohol use, and demand for intensive support services. The program is designed to be fiscally self-sustaining through extant public disability benefits for housing, treatment, and support services. This approach shows strong support for first providing a permanently supported housing solution for chronically homeless and severely disabled individuals in need of housing and treatment of co-occurring disorders.

  2. Parents' retrospective reports of youth psychological responses to the sniper attacks in the Washington, DC, area.

    PubMed

    Self-Brown, Shannon R; Massetti, Greta M; Chen, Jieru; Schulden, Jeffrey

    2011-01-01

    A random-digit-dial telephone survey was conducted in May 2003, with 355 parents of children ages 2-17 years old, living in Washington, DC, or in the two surrounding counties during the October 2002 sniper shootings, to examine parent retrospective reports of child event-related psychological distress. An estimated 32% of parents reported that children experienced at least one psychological distress symptom related to sniper shootings. Older children, females, children with a history of trauma exposure prior to sniper attacks, children whose parents reported routine disruption as the result of attacks, children whose parents perceived them as at great risk for harm from sniper attacks, and those children whose parents reported more traumatic stress symptoms in response to attacks were at greatest risk for reported psychological distress.

  3. Organochlorine pesticide residues in moths from the Baltimore, MD-Washington, DC area

    USGS Publications Warehouse

    Beyer, W.N.; Kaiser, T.E.

    1984-01-01

    Moths were collected with a light trap from 15 sites in the Baltimore, Maryland - Washington, D.C. area and analyzed for organochlorine pesticide residues. On the average, the species sampled contained 0.33 ppm heptachlor-chlordane compounds, 0.25 ppm DDE, and 0.11 ppm dieldrin. There were large differences in the concentrations detected in different species. Concentrations were especially high in moths whose larvae were cutworms, and were virtually absent from moths whose larvae fed on tree leaves. It was concluded that at least some species sampled could be an important source of insecticides to insectivorous wildlife. In some instances moths may be useful indicators of environmental contamination, especially when insectivorous wildlife species cannot be collected. However, the differences in residues observed among species means that only similar species should be compared, and this limits their potential for monitoring.

  4. 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…

  5. Children's Health in Washington, D.C.: Access and Health Challenges despite High Insurance Coverage Rates. Research Highlights

    ERIC Educational Resources Information Center

    Adamson, David M.

    2009-01-01

    In Washington, D.C., the vast majority of children have health insurance. Yet District children often lack sufficient access to medical care and face significant health threats from chronic conditions and risk factors such as exposure to violence in schools and neighborhoods. These findings emerged from an assessment of children's health in…

  6. 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…

  7. The Effect of Inclusion Models on Special Education Student Performance in Charter Schools in Washington, D.C.

    ERIC Educational Resources Information Center

    Owoh, Kendahl

    2013-01-01

    Assessment results of 52 special education students in a charter school in Washington, D.C., were used to compare instruction received in co-teaching models of inclusion and resource classrooms to determine their impact on end-of-year standardized state exams. Statistical analysis showed Grade 3-8 special education students currently receiving…

  8. 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...

  9. 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...

  10. 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...

  11. 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…

  12. Confronting Challenges To Change: Remarks of U.S. Secretary of Education Rod Paige (Washington, DC, September 9, 2002).

    ERIC Educational Resources Information Center

    Paige, Rod

    At the National Press Club in Washington, D.C., in September 2002, the U.S. Secretary of Education outlined the Bush Administration's ideas for education reform. This booklet contains the secretary's remarks. He focused on the No Child Left Behind Act of 2001, presenting several examples of the act in action. He also discussed additional…

  13. Bottom Line Conference Held on May 13, 1982 at Fort Lesley J. McNair, Washington, DC.

    DTIC Science & Technology

    1982-01-01

    AD-RI32 185 BOTTOMI LINE CONFERENCE HELD ON MIAY 1.3 1982 AT FORT 1 /) . LESLEY J MCNAIR WASHINGTON DC(U) OFFICE OF THE U LS E SECRETARY OF DEFENSE...WASHINGTON DC 1982rNCL955IFIED F/G 5/ 1 NLEu-u-.--’ll EEElll’lllE-lI mhEEEEEEI E~g. EEE-EEEEEEEEEl J.oL. --.8 i’°tIII1 liil itiII. 1111125 MICROCOPY...RESOLUTION TEST CHART NATIONAL BUREAU OF STANDARDS-1963-A r - FORT LESLEY J. McNAIR, WASHINGTON, DCMAY 13, 1982 CI.D . .. 4 k -01 I - 1 F~ "QUALITY" The

  14. 2001 anthrax crisis in Washington, D.C.: clinic for persons exposed to contaminated mail.

    PubMed

    Haffer, Andrew S T; Rogers, James R; Montello, Michael J; Frank, Ellen C; Ostroff, Craig

    2002-06-15

    An anthrax prophylaxis clinic is described. In October 2001, four workers from the U.S. Postal Service's Brentwood facility in Washington, D.C., were hospitalized with inhalational anthrax; many others may have been exposed to anthrax spores. U.S. Public Health Service (USPHS) teams were deployed to establish an anthrax prophylaxis clinic that would provide education and medication to workers and people who visited the mail facility. The temporary clinic was set up at D.C. General Hospital and was staffed primarily by health care professionals from USPHS. The protocol at the clinic involved three major phases. Phase 1 consisted of gathering information from the patient and distributing educational materials. Phase 2 involved presentations by a physician and a pharmacist concerning anthrax, followed by a question-and-answer session. In phase 3, a pharmacist selected the most appropriate prophylactic agent, dispensed the medication, counseled the patient, and referred patients with flu-like symptoms or skin lesions to a physician. Two floor plans were used to maximize the number of patients seen per hour without jeopardizing patient care. The clinic operated 14 hours a day for 14 days. The 136-member health care team included 52 pharmacists, and medication was dispensed to more than 18,000 patients. The clinic may serve as a model for pharmacists and other professionals in designing and implementing disaster plans. A multidisciplinary team established and operated a clinic to treat persons who may have been exposed to anthrax through contaminated mail.

  15. Assessment of Public Health Risks Associated with Atmospheric Exposure to PM2.5 in Washington, DC, USA

    PubMed Central

    Greene, Natasha A.; Morris, Vernon R.

    2006-01-01

    In this research, we investigated the public health risks associated with atmospheric exposure to PM2.5 for different subpopulations (black, white, Hispanic, youth, adults, and elderly) in the Washington, DC area. Washington, DC has long been considered a non-healthy place to live according to the American Lung Association due to its poor air quality. This recognition clearly includes the negative PM-related human health effects within the region. Specifically, DC fine particulate matter (PM2.5) [or particulate matter with an aerodynamic diameter less than 2.5 μm] poses notable health risks to subpopulations having an annual mean value of 16.70 μg/m3 during the years 1999–2004, exceeding the EPA National Ambient Air Quality Standard (NAAQS) of 15 μg/m3. Incessant exposure to significant levels of PM has previously been linked to deleterious health effects, such as heart and lung diseases. The environmental quality and public health statistics of Washington, DC indicate the need for higher-resolution measurements of emissions, both spatially and temporally, and increased analysis of PM-related health effects. Our findings show that there are significant risks of ward-specific pediatric asthma emergency room visits (ERV). Results also illustrate lifetime excess lung cancer risks, exceeding the 1×10−6 threshold for the measured levels of particulate matter and heavy metals (chromium and arsenic) on behalf of numerous subpopulations in the DC selected wards. PMID:16823080

  16. Investigation of Higher Than Standard Lead Concentrations in Drinking Water From Washington, D.C.

    NASA Astrophysics Data System (ADS)

    Adarkwah, N. E.; Ararso, I.; Garcia, N.; Goldman, A.; Lieu, C.; Mondragon, J.; Swamy, V.; Unigarro, M.; Cuff, K.

    2005-12-01

    For over two years, the Washington, D.C. area has been plagued by the incidence of alarming concentrations of lead found in local drinking water. During this period, water with lead concentration levels above the U.S. Environmental Protection Agency's (EPA) action limit of 15 ppb has been found in approximately 66% of the homes tested. Because of the problems with lead in drinking water in the D.C. area, the EPA has begun the process of trying to determine whether or not this problem occurs nationwide by obtaining as much lead data as possible. However, it recently reported that no current information exists on lead levels from 78 percent of the nation's public drinking water systems, and that it has no data from as many as 20 states. In an effort to generate information that contributes to a greater understanding of the scope and nature of this real-world environmental health problem, we have begun collecting and performing lead analysis of drinking water samples from different parts of the country. As San Francisco Bay Area - based participants in the NSF-sponsored Environmental Science Information Technology Activities (ESITA) project, we began by establishing E-mail correspondence with children who attend elementary schools in the Washington, D.C. area two years ago, during the first year of the lead crisis. Since that time the elementary school children have sent over 150 water samples from their homes and schools, along with information on the locations from which the water samples were collected to the Bay Area. Upon receipt, we prepare and analyze these samples at UC Berkeley's Lawrence Hall of Science. Following analysis results are compiled, statistically analyzed, and used to create maps that aid in the interpretation of our data. The majority of samples collected from the D.C. area were obtained from schools and homes located in the central north-northeast section of the District. Of these samples, 72% contained lead in excess of the EPA action limit

  17. 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.

  18. Arms control in space: workshop proceedings, Washington, DC, January 30-31, 1984

    SciTech Connect

    Not Available

    1984-05-01

    In late 1982 and early 1983, the Subcommittee on Arms Control, Oceans, International Operations, and Environment of the Senate Committee on Foreign Relations held hearings on space weapons and arms control. To explore these issues further in a discussion format not easily achieved in hearings, Sen. Larry Pressler, Chairman of the Subcommittee, asked OTA to conduct a workshop focusing on antisatellite (ASAT) weapons as one aspect of space arms control. The workshop held in Washington, DC on January 30 and 31, 1984, provided an opportunity for technical, diplomatic, military, and policy-analysis experts to interact, think out loud, and build each other's ideas. The workshop was organized into six sessions, although issues involving anti-satellite weapons and arms control are not easily compartmentalized into distinct subject areas. Each session was introduced by a 10- or 15-minute informal oral presentation which set the stage for further discussion. This workshop proceedings volume is organized along the same divisions as the sessions, with some rearrangement.

  19. 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.

  20. Health-hazard evaluation report HETA 91-070-2194, Library of Congress, Washington, DC

    SciTech Connect

    Moss, C.E.; Cook, C.

    1992-03-01

    In response to a request from the Library of Congress (SIC-8231), Washington, DC, an evaluation was undertaken of possible exposure to electromagnetic radiation emitted by video display terminals (VDT) at the Madison Building. Measurements were taken in the Madison building on April 3 and July 8, 1991 at four worksites. The maximum x-ray radiation level range measured at the screen face was 2 to 6 counts per minute (cpm) and the maximum background activity measured in the outside hall was 3cpm. For comparison, a reading of 4000cpm is roughly equivalent to the maximum exposure level suggested for television receivers. Very low frequency (VLF) readings for electric and magnetic field strength levels at the facial position of the operators ranged from 1.1 to 7.0 volts per meter and 10 to 170 milliamperes per meter, respectively. The maximum induced currents from any of the four terminals as measured with hands on the keyboards, finger touching the screen, and with the hand placed flat on the screen were 0.0008, 0.0038, and 0.0463 milliamperes, respectively. The authors conclude that the electromagnetic radiation exposures as measured at any of these terminals was not of a level expected to cause adverse health effects.

  1. DOE Advanced Controls R&D Planning Workshop, June 11, 2003, Washington DC: Workshop Results

    SciTech Connect

    Brambley, Michael R.; Haves, Philip; McDonald, Sean C.; Torcellini, Paul; Hansen, David G.; Holmberg, David; Roth, Kurt

    2005-04-13

    On June 11, 2003, representatives from universities, federal and state government agencies, Department of Energy national laboratories, and the private sector attended a one-day workshop in Washington, DC. The objective of the workshop was to review and provide input into DOE's assessment of the market for advanced sensors and controls technology and potential R&D pathways to enhance their success in the buildings market place. The workshop consisted of two sessions. During the morning session, participants were given an overview on the following topics: market assessment, current applications and strategies for new applications, sensors and controls, networking, security, and protocols and standards, and automated diagnostics, performance measurement, commissioning and optimal control and tools. In the sessions, workshop participants were asked to review the potential R&D pathways, identify high priority activities, and outline a five year path for each of these activities. Priorities were as follows: largest and quickest impact; best use of finite resources; greatest likelihood for market penetration; and ability to replicate results. The participants identified several promising R&D opportunities.

  2. Bioavailability of polycyclic aromatic hydrocarbons in field-contaminated Anacostia River (Washington, DC) sediment.

    PubMed

    Lu, Xiaoxia; Reible, Danny D; Fleeger, John W

    2006-11-01

    Sediment-water partitioning behavior and bioavailability of five polycyclic aromatic hydrocarbons (PAHs; phenanthrene, pyrene, chrysene, benzo[k]fluoranthene, and benzo[a]pyrene) were measured in field-contaminated sediment collected from moderately polluted regions of the Anacostia River (Washington, DC, U.S.A.). Much of the sediment PAH burden was resistant to desorption: Effective partition coefficients were 2- to 10-fold greater than expected from literature values, and more than 80% of PAHs remained sorbed after treatment of the sediment with a nonionic polymeric adsorbent (Amberlite XAD-2) for 20 h. Bioaccumulation, elimination, and assimilation of each PAH in the deposit-feeding tubificid oligochaete Ilyodrilus templetoni were measured and compared with the equivalent measurements from laboratory-inoculated sediment. Ilyodrilus templetoni effectively accessed the desorption-resistant fraction of these organic contaminants, as exhibited by high single-gut passage assimilation efficiencies (ASEs) of the five PAHs (60% < ASE < 90%). However, steady-state accumulations of PAHs by I. templetoni were very low and consistent with low pore-water concentrations. The present results suggest that steady-state accumulation of PAHs is controlled by pore-water concentrations and is not necessarily related to route of uptake or assimilation efficiencies.

  3. Using the Sediment Quality Triad to characterize baseline conditions in the Anacostia River, Washington, DC, USA.

    PubMed

    McGee, Beth L; Pinkney, Alfred E; Velinsky, David J; Ashley, Jeffrey T F; Fisher, Daniel J; Ferrington, Leonard C; Norberg-King, Teresa J

    2009-09-01

    The Sediment Quality Triad (SQT) consists of complementary measures of sediment chemistry, benthic community structure, and sediment toxicity. We applied the SQT at 20 stations in the tidal portion of the Anacostia River from Bladensburg, MD to Washington, DC to establish a baseline of conditions to evaluate the effects of management actions. Sediment toxicity was assessed using 10-day survival and growth tests with the freshwater amphipod, Hyalella azteca and the midge, Chironomus dilutus. Triplicate grabs were taken at each station for benthic community analysis and the Benthic Index of Biotic Integrity (B-IBI) was used to interpret the data. Only one station, #92, exhibited toxicity related to sediment contamination. Sediments from this station significantly inhibited growth of both test species, had the highest concentrations of contaminants, and had a degraded benthic community, indicated by a B-IBI of less than 3. Additional sediment from this station was tested and sediment toxicity identification evaluation (TIE) procedures tentatively characterized organic compounds as the cause of toxicity. Overall, forty percent of the stations were classified as degraded by the B-IBI. However, qualitative and quantitative comparisons with sediment quality benchmarks indicated no clear relationship between benthic community health and contaminant concentrations. This study provides a baseline for assessing the effectiveness of management actions in the Anacostia River.

  4. Benthic macroinvertebrate populations of urban freshwater tidal wetlands in the Anacostia River, Washington D.C.

    NASA Astrophysics Data System (ADS)

    Brittingham, K. D.

    2005-05-01

    This study characterizes the benthic communities establishing themselves on recently reconstructed urban freshwater tidal wetlands along the Anacostia River in Washington, D.C. in comparison to a similar relic wetland as well as to a reference wetland in the adjacent Patuxent River watershed. The study's focus is the two main areas of Kingman Marsh, which were reconstructed from Anacostia dredge material by the U.S. Army Corps of Engineers in 2000. Populations from this 'new' marsh are compared to those of similarly reconstructed Kenilworth Marsh (1993), as well as to the relic Dueling Creek Marsh on the Anacostia and the outside reference Patuxent Marsh in an adjacent watershed. Benthic organisms were collected using selected techniques including the Ekman bottom grab sampler, sediment corer, D-net and Hester-Dendy sampler. Samples were collected seasonally from tidal channels, tidal mudflats, three vegetation zones (low, middle and high marsh), and pools. Data collected from this study can provide valuable information on the extent that benthic macroinvertebrate communities can serve as an indicator of the relative success of freshwater tidal marsh reconstruction.

  5. Case series of Bartonella quintana blood culture-negative endocarditis in Washington, DC

    PubMed Central

    Ghidey, Fisseha Y.; Mills, Kristin; Lai, Leon; Woods, Christian; Ruiz, Maria E.; Fishbein, Dawn; Sampath, Rahul; Lowery, Robert; Wortmann, Glenn

    2016-01-01

    Introduction: Prior studies (predominantly from Europe) have demonstrated blood culture-negative endocarditis due to Bartonella. Our objective was to describe three cases of Bartonella quintana endocarditis identified within one year at a large hospital in Washington, DC, USA. Case presentation: We constructed a descriptive case series from a retrospective review of medical records from April to December 2013 at an 800-bed urban hospital. All three patients (ages: 52, 55 and 57 years) were undomiciled/homeless men with a history of alcoholism. Although they had negative blood cultures, echocardiography demonstrated aortic/mitral valve perforation and regurgitation in one patient, aortic/mitral valve vegetation with mitral regurgitation in the second patient, and aortic valve vegetation with regurgitation in the third patient. The patients had positive Bartonella quintana serum immunoglobulin G (IgG) with negative immunoglobulin M (IgM). PCR on DNA extracted from cardiac valves was positive for Bartonella, and DNA sequencing of PCR amplicons identified Bartonella quintana. Patients received treatment with doxycycline/rifampin or doxycycline/gentamicin. Conclusion: Clinicians should consider Bartonella endocarditis as a differential diagnosis in patients who fit elements of the Duke Criteria, as well as having a history of homelessness and alcoholism. PMID:28348772

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

    PubMed Central

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

    2013-01-01

    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. PMID:24193263

  7. Water resources data Maryland, Delaware, and Washington, D.C., water year 2005, Volume 2. Ground-water data

    USGS Publications Warehouse

    Curtin, Stephen E.; Bringman, Deborah A.; Marchand, Elizabeth H.

    2006-01-01

    Water resources data for the 2005 water year for Maryland, Delaware, and Washington, D.C. consist of records of water levels and water quality of ground-water wells. This report (Volume 2. Ground-Water Data) contains water levels at 352 observation wells, discharge records for 4 springs, and water quality at 118 wells. Locations of ground-water level wells are shown on figures 6 and 7. Locations of groundwater- quality sites are shown on figure 8. The data in this report represent that part of the National Water Data System collected by the U.S. Geological Survey and cooperating State, local, and Federal agencies in Maryland, Delaware, and Washington, D.C.

  8. Water resources data Maryland, Delaware, and Washington, D.C., water year 2003, volume 2. ground-water data

    USGS Publications Warehouse

    ,

    2004-01-01

    Water resources data for the 2003 water year for Maryland, Delaware, and Washington, D.C. consist of records of water levels and water quality of ground-water wells. This report (Volume 2. Ground-Water Data) contains water levels at 386 observation wells, discharge records for 4 springs, and water quality at 185 wells. Locations of ground-water level wells are shown on figures 6 and 7. Locations of groundwater- quality sites are shown on figure 8. The data in this report represent that part of the National Water Data System collected by the U.S. Geological Survey and cooperating State, local, and Federal agencies in Maryland, Delaware, and Washington, D.C.

  9. Data collected from USGS drilling in Lafayette Park, Washington, D.C. in November-December, 1976

    USGS Publications Warehouse

    Prowell, David C.; Christopher, Raymond A.

    2004-01-01

    In 1976, the U.S. Geological Survey drilled four holes in Lafayette Park in Washington, D.C. These holes encountered two Coastal Plain units (Quaternary (undifferentiated) and the Lower Cretaceous Potomac Group), and then bottomed in Paleozoic metamorphic bedrock. The stratigraphic relations of the Coastal Plain formations indicate that the Potomac Group strata become abruptly thicker from west to east across the park.

  10. 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.

  11. 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

  12. Skills Required by the Information Technology Sector in the Washington, D.C. Metropolitan Area. Business Needs Assessment Study No. 2. Research Report.

    ERIC Educational Resources Information Center

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

    The Office of Institutional Research (OIR) at Northern Virginia Community College (NVCC) analyzed data collected from ads for jobs in the information technology (IT) sector in the Washington, D.C. area. The study acquired its data from employment ads in the Washington Post's Sunday employment sections. The primary purpose of the study was to learn…

  13. Smoking cessation and relapse among pregnant African-American smokers in Washington, DC.

    PubMed

    El-Mohandes, Ayman A E; El-Khorazaty, M Nabil; Kiely, Michele; Gantz, Marie G

    2011-12-01

    Smoking is the single most preventable cause of perinatal morbidity. This study examines smoking behaviors during pregnancy in a high risk population of African Americans. The study also examines risk factors associated with smoking behaviors and cessation in response to a cognitive behavioral therapy (CBT) intervention. This study is a secondary analysis of data from a randomized controlled trial addressing multiple risks during pregnancy. Five hundred African-American Washington, DC residents who reported smoking in the 6 months preceding pregnancy were randomized to a CBT intervention. Psycho-social and behavioral data were collected. Self-reported smoking and salivary cotinine levels were measured prenatally and postpartum to assess changes in smoking behavior. Comparisons were made between active smokers and those abstaining at baseline and follow-up in pregnancy and postpartum. Sixty percent of participants reported quitting spontaneously during pregnancy. In regression models, smoking at baseline was associated with older age,

  14. Black-white differences in mortality in idiopathic dilated cardiomyopathy: the Washington, DC, dilated cardiomyopathy study.

    PubMed Central

    Coughlin, S. S.; Gottdiener, J. S.; Baughman, K. L.; Wasserman, A.; Marx, E. S.; Tefft, M. C.; Gersh, B. J.

    1994-01-01

    Racial, socioeconomic, and clinical factors were examined as predictors of survival in idiopathic dilated cardiomyopathy using cases from five Washington, DC-area hospitals. One hundred three (80.5%) of the patients were black and 25 (19.5%) were white. The black patients were less likely to have private health insurance, less educated on average, and more likely to have a household income of $15,000 or less (P < or = .05). No racial differences were found in cardiac medication usage, with the exception of beta blockers and antiarrhythmics. The cumulative survival among black patients at 12 and 24 months was 71.5% and 63.6%, respectively, as compared with 92.0% and 86.3% among whites. The 12-month survival of black patients with ventricular arrhythmias or an ejection fraction of less than 25% was particularly poor. Age, ventricular arrhythmias, ejection fraction, and cigarette usage were significant predictors of survival in univariate analysis using the proportional hazards model. The univariate association with black race was of borderline significance (P < or = .07). In multivariate analysis, age and race were statistically significant independent predictors of survival. A strong association with black race was observed with an estimated relative risk of mortality of 5.41 (P < or = .02) after adjustment for age, ejection fraction, ventricular arrhythmias, and educational attainment. Poorer survival among blacks may be caused by a greater severity of disease at the time of diagnosis or by racial differences in cardiac care, comorbid conditions, or biologic factors affecting survival. PMID:7932836

  15. 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.

  16. Patterns of Alcohol Consumption among Pregnant African-American Women in Washington, D.C

    PubMed Central

    Thornberry, Jutta S.; Bhaskar, Brinda; Rodan, Margaret R.

    2010-01-01

    SUMMARY The objective of this paper is to describe the patterns and associated behaviors related to alcohol consumption among a selected sample of pregnant women seeking prenatal care in inner city Washington D.C. Women receiving prenatal care at one of nine sites completed an anonymous, alcohol-screening questionnaire. Questions were from the TWEAK and AUDIT as well as quantity/frequency questions about the amount, type, and pattern of alcohol consumption. Women were determined to be at no, low, moderate or high risk for alcohol consumption during pregnancy. For comparisons of risk levels of drinking, bivariate associations were examined using Fisher’s Exact Tests. Odds ratios and 95% confidence intervals were also computed. Although 31% of current/recent drinkers stated that they continued to drink during pregnancy, responses to quantity/frequency questions revealed that 42% continued to do so. Women who were high compared to moderate risk acknowledged that others were worried [OR=4.0, 95% CI=1.5,10.6], drinking upon rising [OR=6.7, 95% CI=1.8,26.9], a need to reduce drinking [OR=3.2, 95% CI=1.3,8.1] and in the past five years having fractures [OR=4.2, 95% CI=1.0,17.8] or traffic crash injury(-ies) [OR=3.4, 95% CI=1.0,12.2]. Women in the high/moderate compared to low risk group were more likely to have been injured in a fight or assault [OR=2.7,95% CI=1.3,5.6]. This study validated the usefulness of our questionnaire in identifying women who were at risk for alcohol consumption during pregnancy across a range of consumption levels. Using our screening tool, women were willing to disclose their drinking habits. This low cost method identifies and allows for targeting of interventions. PMID:21649675

  17. 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.

  18. 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.

  19. 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

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

    SciTech Connect

    Niu, H.; Clark, C. E.; Zhou, J.; Adriaens, P.; Environmental Science Division; Dalian Univ. of Technology; Univ. of Michigan

    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 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 (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

  1. 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

  2. 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

  3. 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

  4. 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

  5. Between-ward disparities in colorectal cancer incidence and screening in Washington DC.

    PubMed

    Chatterjee, Sharmila; Chattopadhyay, Amit; Levine, Paul H

    2015-12-01

    This study aims to investigate the incidence and determinants of colorectal cancer (CRC) and its screening in District of Columbia (DC), and identify modifiable risk factors. Data (2000-2009) from the DC Cancer Registry, Behavioral Risk Factor Surveillance System (BRFSS-DC) and Surveillance Epidemiology and End Results (SEER) were used to estimate CRC incidence in eight DC Wards. Risk factors and CRC screening were analyzed using uni-, bi-, and multivariable statistical methods with survey procedures in SAS (version 9.2) including binary, unconditional multivariable logistic regression analysis. Factors measured included stage of diagnosis, age, gender, race/ethnicity, smoking, alcohol, exercise, body weight, health insurance, education, employment, and income. Over the study time, CRC screening increased from 48.4% to 68.6%. Mean age at diagnosis was 67 years. CRC incidence is high in DC. Furthermore, CRC incidence rates in DC below 50 years' age were higher than the SEER18 average. Disparities exist between CRC incidence and screening among DC Wards. Identified risk factors for CRC are smoking, obesity, and low physical activity; screening was less prevalent among the uninsured and low socio-economic group. Local variations in CRC occurrence exist and may vary from average national experiences. Identification of local regions which vary from national trends in disease occurrence is important for comprehensive understanding of the disease in the community.

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

    SciTech Connect

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

  7. 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.

    SciTech Connect

    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).

  8. 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…

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

    DTIC Science & Technology

    1993-01-01

    Rebellion of 1794 . At that time, because of violent resistance in Western Pennsylvania to a federal tax on the production of whiskey , the President...During this period federal troops quelled civil unrest during the Whiskey Rebellion in 1794 , Fries’ Rebellion in 1799, Dorr’s Rebellion in 1842, at the...changed since that time. The procedure prescribed by these laws were first used by President Washington in suppressing the Whiskey Rebellion . The

  10. 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.

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

    USGS Publications Warehouse

    Rice, Karen C.; Jung, Robin 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.

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

    ScienceCinema

    Diamond, Rick

    2016-07-12

    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.

  13. 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.

  14. Southwest Washington, Urban Renewal Area, Bounded by Independence Avenue, Washington ...

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

    Southwest Washington, Urban Renewal Area, Bounded by Independence Avenue, Washington Avenue, South Capitol Street, Canal Street, P Street, Maine Avenue & Washington Channel, Fourteenth Street, D Street, & Twelfth Street, Washington, District of Columbia, DC

  15. The State of Digital Preservation: An International Perspective. Conference Proceedings (1st, Washington, D.C., April 24-25, 2002).

    ERIC Educational Resources Information Center

    Council on Library and Information Resources, Washington, DC.

    In this collection of papers presented at "The State of Digital Preservation: An International Perspective" conference (Washington, DC, April 24-25, 2002), leading experts from the United States, the Netherlands, and Australia describe current practices and challenges in digital preservation. Contents include: "Introduction: The…

  16. Proceedings of the American Defense Preparedness Association on Milcon III, Military Computers and Software Held at Washington, DC on January 25-26, 1984

    DTIC Science & Technology

    1984-01-01

    GENERAL ELECTRIC COMPANY APPLICATION ENGINEER P 0 BOX 4840 (CSP 3-3) SYRACUSE NY 13221 COL NICK J. BADOVINAC, JR ARMY TRAINING SUPPORT CENTER...PENTAGON WASHINGTON DC 20301 HARLEY A CLOUD IBM CORPORATION DIR OF ENGRG, SrTWARE «■ IECH 6600 ROCKLEDGE DR BETHESDA MD 20817 DORIS J COADY

  17. 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...

  18. Youth Conservation Jobs and Service--A New National Corps? Report of a Conference (Washington, D.C., May 4-5, 1981).

    ERIC Educational Resources Information Center

    Human Environment Center, Washington, DC.

    The Human Environment Center held a national conference on Youth Conservation Jobs and Service in May, 1981, in Washington, D.C., attended by approximately 100 representatives of minority, employment, youth, environmental, and national service interests. The conferees concurred that the Young Adult Conservation Corps (YACC) and the Youth…

  19. The Importance of Literacy. Hearing before the Committee on Education and the Workforce. House of Representatives, One Hundred Sixth Congress, Second Session (Washington, DC, September 26, 2000).

    ERIC Educational Resources Information Center

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

    A hearing was held on Tuesday, September 26, 2000, by the U.S. House of Representatives, Committee on Education and the Workforce, Washington, DC, on the importance of literacy. The following U.S. Representatives were present: Goodling, Roukema, Schaffer, Hilleary, Ehlers, Fletcher, Isakson, Kildee, Owens, Payne, Scott, Hinojosa, McCarthy, Kind,…

  20. 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...

  1. 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...

  2. Crisis of Confidence: The Reputation of Washington's Public Schools in the Twentieth Century. Studies in D.C. History and Public Policy Paper No. 1.

    ERIC Educational Resources Information Center

    Diner, Steven J.

    The decline of public confidence in Washington, D.C. public schools emerged between 1954 and 1967 from political and social developments that affected the nation's capital. Past research and educational reports, newspaper articles, and politicians' statements indicate that before 1954, public confidence in the schools was relatively high.…

  3. 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…

  4. 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…

  5. The Nonutilization of Special Transport Services by the Elderly in Urban Areas: A Case Study of Washington, D.C. Final Report and Executive Summary.

    ERIC Educational Resources Information Center

    Lyons, Deborah L.; Lipowitz, Isaac

    Improving the mobility of older adults has been a major goal of transportation programs and policies for the elderly at both the federal and local levels. To examine reasons why eligible elderly individuals in urban areas do not use available special transport services, 140 elderly persons in the Washington, D.C. area were surveyed on the extent…

  6. 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…

  7. 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…

  8. Problems of Journalism; Proceedings of the 1975 Annual Convention of the American Society of Newspaper Editors (Washington, D.C., April 16-18, 1975).

    ERIC Educational Resources Information Center

    American Society of Newspaper Editors, Easton, PA.

    This document reports the 1975 proceedings of the American Society of Newspaper Editors (ASNE) convention held in Washington, D.C., April 16-18. The contents include a list of officers and directors, past presidents of the society, and a copy of the ASNE Code of Ethics. Also contained in the document are reports on such individual sessions as…

  9. 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)…

  10. Sun-Earth Connection Education and Public Outreach Activities in the Washington. DC Metropolitan Area

    NASA Astrophysics Data System (ADS)

    Carruthers, G. R.; Thomas, V. L.

    2005-05-01

    One of the primary education and public outreach activities we have been involved in over the last few years, is a project sponsored by the South East Regional Clearing House (SERCH), a NASA EPO broker-facilitator, to support EPO activities related to NASA's Office of Space Science research themes; specifically (1) The Sun-Earth Connection; (2) Exploration of the Solar System; (3) Astronomical Search for Origins; and (4) Structure and Evolution of the Universe. The grant was by way of the DC Space Grant Consortium, of which S.M.A.R.T. is an affiliate. The objectives of the grant were to provide educational materials and activities related to these themes, in DC Public Schools (and other formal, as well as informal, educational organizations, in the DC metropolitan area). We have also given presentations on these topics in informal educational venues and at universities. The objectives of our SERCH grant included production of videos, as well as CD copies of presentation documents, for use in the schools. Of particular note is that students, and their teachers, are active participants in the videos. The Sun-Earth Connection theme is the one we have focused on initially. Two DC schools, Anacostia Senior High School and Backus Middle School, were participants in the video production. In addition, students working during the summers as Science and Engineering Apprentice Program (SEAP) students at the Naval Research Laboratory participated in some of the videos and in developing and testing instruments used in the EPO activities. Also, the SEC presentations have been used in invited talks on several occasions as part of NRL's Community Outreach activities.

  11. Elevated Lead in Drinking Water in Washington, DC, 2003–2004: The Public Health Response

    PubMed Central

    Guidotti, Tee L.; Calhoun, Thomas; Davies-Cole, John O.; Knuckles, Maurice E.; Stokes, Lynette; Glymph, Chevelle; Lum, Garret; Moses, Marina S.; Goldsmith, David F.; Ragain, Lisa

    2007-01-01

    Background In 2003, residents of the District of Columbia (DC) experienced an abrupt rise in lead levels in drinking water, which followed a change in water-disinfection treatment in 2001 and which was attributed to consequent changes in water chemistry and corrosivity. Objectives To evaluate the public health implications of the exceedance, the DC Department of Health expanded the scope of its monitoring programs for blood lead levels in children. Methods From 3 February 2004 to 31 July 2004, 6,834 DC residents were screened to determine their blood lead levels. Results Children from 6 months to 6 years of age constituted 2,342 of those tested; 65 had blood lead levels > 10 μg/dL (the “level of concern” defined by the Centers for Disease Control and Prevention), the highest with a level of 68 μg/dL. Investigation of their homes identified environmental sources of lead exposure other than tap water as the source, when the source was identified. Most of the children with elevated blood lead levels (n = 46; 70.8%) lived in homes without lead drinking-water service lines, which is the principal source of lead in drinking water in older cities. Although residents of houses with lead service lines had higher blood lead levels on average than those in houses that did not, this relationship is confounded. Older houses that retain lead service lines usually have not been rehabilitated and are more likely to be associated with other sources of exposure, particularly lead paint. None of 96 pregnant women tested showed blood lead levels > 10 μg/dL, but two nursing mothers had blood lead levels > 10 μg/dL. Among two data sets of 107 and 71 children for whom paired blood and water lead levels could be obtained, there was no correlation (r2 = –0.03142 for the 107). Conclusions The expanded screening program developed in response to increased lead levels in water uncovered the true dimensions of a continuing problem with sources of lead in homes, specifically lead paint

  12. 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).

  13. Proceedings of the American Psychological Association, Incorporated, for the legislative year 2015: Minutes of the Annual Meeting of the Council of Representatives February 20-22, 2015, Washington, DC, and August 5 and August 7, 2015, Washington, DC, and minutes of the February, June, August, and December 2015 meetings of the Board of Directors.

    PubMed

    Kelly, Jennifer F

    2016-01-01

    This article provides the minutes of the Annual Meeting of the Council of Representatives February 20-22, 2015, Washington, DC, and August 5 and August 7, 2015, Washington, DC, and minutes of the February, June, August, and December 2015 meetings of the Board of Directors. These minutes are the official record of the actions of the Association taken during the year by both the Board of Directors (the Board) and the Council of Representatives (Council). They are arranged in topical rather than chronological order, and subheadings are used when appropriate. (PsycINFO Database Record

  14. 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

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

    SciTech Connect

    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 powered 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.

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

    SciTech Connect

    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) programs 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.

  17. 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.

  18. Nutrients, oxygen dynamics, stable isotopes and fatty acid concentrations of a freshwater tidal system, Washington, D.C.

    PubMed

    MacAvoy, Stephen E; Ewers, Evan C; Bushaw-Newton, Karen L

    2009-09-01

    The Anacostia River in Washington, D.C., USA is an urban waterway contaminated with PAHs, PCBs, metals and sewage. Although several studies have examined the heavy metal geochemistry within the river, no studies have examined basic biogeochemical processes within the Anacostia river system. This study examines nutrients, bacterial biomarkers, organic material, and carbon, nitrogen and sulfur sources in the system. High biological oxygen demand and low nitrogen (0.33-0.56 mg L(-1)) and phosphorus (0.014-0.021 mg L(-1)) concentrations were observed in three areas of the river. Downstream sites had higher nutrient concentrations and dissolved organic matter (up to 13.7 mg L(-1)). 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. Sediment carbon stable isotope analyses showed a mix of autochthonous and allochthonous derived materials, but most carbon was derived from terrestrial sources (-23.3 to -31.7 per thousand). Sediment nitrogen stable isotopes ranged from -5.4 to 5.6 per thousand, showing nitrate uptake by plants and also recycling of nitrogen within the river. Sulfur sources were generally between 3 and -5 per thousand, reflecting local sulfate sources and anaerobic sulfate reduction.

  19. Polychlorinated biphenyls in stormwater runoff entering the tidal Anacostia River, Washington, DC, through small urban catchments and combined sewer outfalls.

    PubMed

    Hwang, Hyun-Min; Foster, Gregory D

    2008-05-01

    To investigate the loadings, solid-water partitioning, transport dynamics, and sources of polychlorinated biphenyls (PCBs) in urban stormwater runoff entering into the lower tidal Anacostia River, which flows south of Washington, DC, USA, storm and base flow samples were collected in six branches. Stormwater runoff contained elevated levels of PCBs (9.82 to 211 ng/L) higher than base flow by up to 80-fold. The present study suggests that input of PCBs from Lower Beaverdam Creek is likely to be greater than those from the two major branches (Northeast and Northwest Branches) that were believed as primary source areas. PCBs in storm flow were significantly enriched in the particle phase, which accounted for more than 90% of the total PCBs. Particles were the primary vector transporting PCBs into the Anacostia River, suggesting that removal of particles in stormwater runoff using best management practices (BMPs) such as post treatment system likely decrease PCBs significantly. PCB congener patterns found in stormwater samples clearly explain stormwater runoff is a major transport pathway adding substantial amount of PCBs to the tidal Anacostia River.

  20. Proceedings of the Annual National Conference on ADA Technology (9th) Held in Washington, DC on 4-7 March 1991

    DTIC Science & Technology

    1991-03-07

    NJ 07724 MS. ANTOINETTE STUART San Diego, CA 92123 Department of the Navy Technical Program Chair: MS. LAURA VEITH Washington, DC 20734 Immediate Past...R.J. and P.J.L. Wallis. 1990. PROGRAM OPERATIONAL CONCEPT DOCUMENT (OCD) SOFTWARE REUSE WITH ADA. Peter Peregrinus (DRAFT). RCI-TR-075B, Reifer...REUSE ON AFATDS CONCEPT EVALUATION by C. Alan Burnham, Robert D. Gerardi, Peter Ho, and Dr. Harry F. Joiner II Telos Corporation 55 North Gilbert Street

  1. Proceedings of the Aircraft Wake Vortices Conference Held in Washington, DC on October 29 - 31, 1991. Volume 1, Papers 1-29.

    DTIC Science & Technology

    1992-06-01

    proceedings of the international conference of Aircraft Wake Vortices held at the Quality Hotel Capitol Hill, Washington, DC. on October 29-31. 1991. The...and vortex avoidance schemes. 14. SUBJECT TERMS 15. NUMBER OF PAGES Aircraft Wake Vortex, Vortices , Vortex hazards, Wake Behavior 1138 16. PRICE CODE...Heinz Winter 4. INCREASED AIRPORT CAPACITY THROUGH REDUCTION OF SEPARATIONS DUE TO WAKE VORTICES 4-1 C. Le Roux 5. A VORTEX ADVISORY SYSTEM AT

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

    SciTech Connect

    Popovich, Neil

    2016-10-01

    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.

  3. EPA Announces Installation of Park Benches with Solar-Powered Air Monitors in Five Cities/Village Green community park benches are located in Philadelphia, Washington, D.C., Oklahoma City, Kansas City, Hartford

    EPA Pesticide Factsheets

    WASHINGTON DC- Today, the U.S. Environmental Protection Agency (EPA) is announcing the installation of five Village Green solar-powered air monitoring stations, fitted into park benches that will measure common air pollutants and weather conditions.

  4. 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

  5. Gonorrhea infections diagnosed among persons living with HIV/AIDS: identifying opportunities for integrated prevention services in New York City, Washington, DC, Miami/Dade County, and Arizona.

    PubMed

    Taylor, Melanie M; Schillinger, Julia A; Furness, Bruce W; Brewer, Toye; Newman, Daniel R; Pathela, Preeti; Skinner, Julia; Braunstein, Sarah; Shepard, Colin; Ahmed, Tashrik; Griffin, Angelique; Blank, Susan; Peterman, Thomas A

    2013-09-01

    : Persons living with HIV/AIDS who acquire new sexually transmitted diseases (STDs) pose a risk for enhanced transmission of both HIV and STDs. To describe the frequency of HIV coinfection among gonorrhea cases (GC), HIV and GC surveillance databases (2000-2008) were cross-matched in New York City (NYC), Washington, DC (DC), Miami/Dade County (MDC), and Arizona (AZ). During 2000-2008, 4.6% (9471/205,689) of reported GCs occurred among persons with previously diagnosed HIV: NYC (5.5%), DC (7.3%), MDC (4%), and AZ (2%). The overall HIV-GC coinfection rates increased over the study period in all 4 sites. Real-time data integration could allow for enhanced prevention among persons with HIV infection and acute STDs.

  6. 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

  7. 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.

  8. Integrating Infrastructure-Relevant Climate Projections into City Planning: Learning from Boulder CO, Austin TX and Washington DC

    NASA Astrophysics Data System (ADS)

    Stoner, A. M. K.; Hayhoe, K.

    2015-12-01

    Over the coming century, climate change has the potential to impact infrastructure in many different ways, particularly in population-dense areas that depend on transportation and built environments. Many of these impacts may occur via changes in the frequency and magnitude of extremes: high and low temperature, heat waves, precipitation, coastal flooding, and storm events. Having a better idea of how the climate might change locally, both within the near future as well as toward the end of the century, can give city planners and engineers guidance when designing new structures and when repairing and fortifying existing components of buildings, bridges, highways, sewers, ports, etc. However, the type of event and the amount of damages that may be incurred are often highly specific to a given location. Over the last 10 years, we have worked with a broad range of cities, states, non-profit organizations, and federal agencies to integrate climate projections into ongoing resiliency, sustainability, and management processes. Drawing on that experience, we describe the broad steps in assimilating climate information into existing decision-making frameworks relevant to most applications, as well as highlighting many of the unique aspects of these analyses using examples from our most recent work with three very different cities - Austin TX, Boulder CO and Washington DC. From initial conversations with local experts to identify relevant thresholds to final integration of projected changes into the planning processes of these cities, these case studies highlight the utility of including future climate projections into infrastructure planning, the challenges to doing so, and the over-arching importance of communication and interaction between infrastructure experts, engineers, and scientists.

  9. Seasonal changes in sleep duration in African American and African college students living in Washington, D.C.

    PubMed

    Volkov, Janna; Rohan, Kelly J; Yousufi, Samina M; Nguyen, Minh-Chau; Jackson, Michael A; Thrower, Courtney M; Postolache, Teodor T

    2007-06-12

    Duration of nocturnal melatonin secretion, a marker of "biological night" that relates to sleep duration, is longer in winter than in summer in patients with seasonal affective disorder (SAD), but not in healthy controls. In this study of African and African American college students, we hypothesized that students who met criteria for winter SAD or subsyndromal SAD (S-SAD) would report sleeping longer in winter than in summer. In addition, based on our previous observation that Africans report more "problems" with change in seasons than African Americans, we expected that the seasonal changes in sleep duration would be greater in African students than in African American students. Based on Seasonal Pattern Assessment Questionnaire (SPAQ) responses, African American and African college students in Washington, D.C. (N = 575) were grouped into a winter SAD/S-SAD group or a no winter diagnosis group, and winter and summer sleep length were determined. We conducted a 2 (season) x 2 (sex) x 2 (ethnicity) x 2 (winter diagnosis group) ANCOVA on reported sleep duration, controlling for age. Contrary to our hypothesis, we found that African and African American students with winter SAD/S-SAD report sleeping longer in the summer than in the winter. No differences in seasonality of sleep were found between African and African American students. Students with winter SAD or S-SAD may need to sacrifice sleep duration in the winter, when their academic functioning/efficiency may be impaired by syndromal or subsyndromal depression, in order to meet seasonally increased academic demands.

  10. 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.

  11. 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

  12. 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.

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

    SciTech Connect

    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 basin 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.

  14. A cluster analytic examination of acculturation and health status among Asian Americans in the Washington DC metropolitan area, United States.

    PubMed

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

    2013-11-01

    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

  15. 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

  16. Biogeochemical characteristics of a polluted urban stream (Anacostia River, Washington DC, USA): inorganic minerals, nutrients and allochthonous vs. autochthonous production

    NASA Astrophysics Data System (ADS)

    Sarraino, S.; Frantz, D.; Bushaw-Newton, K.; MacAvoy, S. E.

    2011-12-01

    The Anacostia River in Washington, D.C. is among the 10 most contaminated rivers in the USA, containing sewage, metals, PAHs, and PCBs. The biogeochemical characteristics of tidal freshwater urban rivers, including the Anacostia, remain largely unstudied. This study examined base-flow geochemistry and nutrients dynamics over a one-year period (April 2010- May 2011), concentrating on inorganics (Ca, Mg, Na, S, K, P, NO3, NH4, PO4, B, Ba, Ni, Co), organic hydrocarbons, sediment and water column particulate C, N and S stable isotopes and total organic carbon. Water and sediment were sampled from three tidal freshwater sites along the Anacostia River approximately every 8 weeks. δ15N values of sediment and water column particulates ranged from +2 to +9%, with the most enriched values occurring downstream (+4 to +9%). While these values may not reflect sewage inputs, an overall enrichment was observed between spring and late summer, which may indicate microbial activity. δ13C values exhibited slightly more variation and ranged from -30 to -25%. All sites showed relative depletion in early summer compared with spring or late summer/fall. C/N ratios were generally between 13-19 in sediments, indicating autochthonous origins. Water nutrients (NO3 and NH4) demonstrated seasonal fluxes; all sites showed a peak in nutrients during early summer (June) and subsequent decline. Overall, NO3 ranged from about 0.2 to 3.3 mg/L and NH4 ranged from 0 to 1.7 μg/L. GC-MS analysis showed notable compounds such as anthraquinone (a possible carcinogen), steroid hormones and several odd-chain and branched fatty acids. Principle Component Analysis (PCA) of the geochemical data suggests the strongest control of water chemistry (25-39%) is a Ca/Mg component that was also strongly associated with nitrate and K at 2 of the 3 sites. The second component (25%) was strongly associated with Na. The possibility that cement influences the geochemistry of this urban river continues to be examined.

  17. 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

  18. 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.

  19. A Study of the Most Cost Effective Method of Providing Short Term Inpatient Psychiatric Care in the Washington, DC Catchment Area

    DTIC Science & Technology

    1984-06-01

    where care was provided to include the average length of stay for the short term psychiatric patient, total cost per hospital encounter as well as...for short term inpatient psychiatric care. This figure multiplied by the average length of stay and the projected number of CNA renders a range for...in FY 1983 estimates that the average length of stay (ALOS) in days is 54.2.15 This ALOS is elevated to 58 days when the Washington, D.C. catchment

  20. 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.

  1. 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

  2. Understanding Climate Policy Data Needs. NASA Carbon Monitoring System Briefing: Characterizing Flux Uncertainty, Washington D.C., 11 January 2012

    NASA Technical Reports Server (NTRS)

    Brown, Molly E.; Macauley, Molly

    2012-01-01

    Climate policy in the United States is currently guided by public-private partnerships and actions at the local and state levels. This mitigation strategy is made up of programs that focus on energy efficiency, renewable energy, agricultural practices and implementation of technologies to reduce greenhouse gases. How will policy makers know if these strategies are working, particularly at the scales at which they are being implemented? The NASA Carbon Monitoring System (CMS) will provide information on carbon dioxide fluxes derived from observations of earth's land, ocean and atmosphere used in state of the art models describing their interactions. This new modeling system could be used to assess the impact of specific policy interventions on CO2 reductions, enabling an iterative, results-oriented policy process. In January of 2012, the CMS team held a meeting with carbon policy and decision makers in Washington DC to describe the developing modeling system to policy makers. The NASA CMS will develop pilot studies to provide information across a range of spatial scales, consider carbon storage in biomass, and improve measures of the atmospheric distribution of carbon dioxide. The pilot involves multiple institutions (four NASA centers as well as several universities) and over 20 scientists in its work. This pilot study will generate CO2 flux maps for two years using observational constraints in NASA's state-of -the-art models. Bottom-up surface flux estimates will be computed using data-constrained land and ocean models; comparison of the different techniques will provide some knowledge of uncertainty in these estimates. Ensembles of atmospheric carbon distributions will be computed using an atmospheric general circulation model (GEOS-5), with perturbations to the surface fluxes and to transport. Top-down flux estimates will be computed from observed atmospheric CO2 distributions (ACOS/GOSAT retrievals) alongside the forward-model fields, in conjunction with an

  3. 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

    two hundred feet and was four stories high with vaults below the basemento It is of modified Corinthian architecture and cost nearly two million...Washington in 1781 but before the peace treaty with Great Britain was signed in 1783, Congress passed a resolution providing - "that an equestrian ...suggesting that a solution could be found in converting the space oc cupied by the boiler room and coal vault in McMillan Park pumping station to

  4. 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…

  5. A Descriptive Analysis of the Adult Education Methodology and the Non-Threatening Approach to Adult Education as Practiced by the Institute of Lifetime Learning, Washington, D.C.

    ERIC Educational Resources Information Center

    Blake, Clarence Napoleon

    A study was made of the Institute of Lifetime Learning in Washington, D.C.; data were gathered by observation over an 11-month period and through interviews with 19 instructors. An analysis of the findings indicate the following: (1) The institute's philosophy is the provision of non-threatening education for older or retired adults; (2)…

  6. Technology and Education: An Investment in Equity and Excellence. Remarks as Prepared for Delivery by U.S. Secretary of Education Richard W. Riley (Washington, DC, July 29, 1998).

    ERIC Educational Resources Information Center

    Riley, Richard W.

    This paper contains the transcript of the speech of United States Secretary of Education Richard W. Riley delivered at the National Press Club, Washington, D.C. on July 29, 1998. The focus of the speech was the promise and possibilities of technology in education. Discussion includes the following: the "digital divide" in technology use…

  7. Volunteers for People in Need. Report of "Knowledge Utilization Conference on the Use of Volunteers in Vocational Rehabilitation and Public Welfare Agencies" (Washington, D.C. June 4-6, 1972).

    ERIC Educational Resources Information Center

    International Association of Rehabilitation Facilities, Washington, DC.

    This publication contains the formal papers and the summaries of informal discussions from a "Knowledge Utilization Conference on the Use of Volunteers in Vocational Rehabilitation and Public Welfare Agencies." The conference took place June 4-6, 1972, in the Washington, D.C. area. It was sponsored by the International Association of…

  8. Assessing the Readiness of Virtual Teams at the Four U.S.-Saudi Diplomatic Corps: The Embassy in Washington, DC, and the Three Consulates in New York, Houston, and Los Angeles

    ERIC Educational Resources Information Center

    Al Subaie, Khalid F. F.

    2013-01-01

    Purpose: The purpose of this study was to assess staff perceptions of four U.S.-Saudi Diplomatic Corps, the embassy in Washington, DC, and the three consulates in New York, Houston, and Los Angeles regarding the implementation of virtual teams. This study applied the adaptive structuration theory (AST). AST explains how teams develop in a given…

  9. 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…

  10. VIEW OF THE REAR OF WATERSIDE MALL Southwest Washington, ...

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

    VIEW OF THE REAR OF WATERSIDE MALL - Southwest Washington, Urban Renewal Area, Bounded by Independence Avenue, Washington Avenue, South Capitol Street, Canal Street, P Street, Maine Avenue & Washington Channel, Fourteenth Street, D Street, & Twelfth Street, Washington, District of Columbia, DC

  11. CLOSE VIEW ALONG WATERFRONT TO SHOW BULKHEAD Southwest Washington, ...

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

    CLOSE VIEW ALONG WATERFRONT TO SHOW BULKHEAD - Southwest Washington, Urban Renewal Area, Bounded by Independence Avenue, Washington Avenue, South Capitol Street, Canal Street, P Street, Maine Avenue & Washington Channel, Fourteenth Street, D Street, & Twelfth Street, Washington, District of Columbia, DC

  12. INTERIOR VIEW, WATERSIDE MALL Southwest Washington, Urban Renewal Area, ...

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

    INTERIOR VIEW, WATERSIDE MALL - Southwest Washington, Urban Renewal Area, Bounded by Independence Avenue, Washington Avenue, South Capitol Street, Canal Street, P Street, Maine Avenue & Washington Channel, Fourteenth Street, D Street, & Twelfth Street, Washington, District of Columbia, DC

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

    SciTech Connect

    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 0.24 {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., 6 tabs.

  14. Proceedings of the Molecular Electronic Devices Workshop Held at Washington, DC on 23-24 March 1981.

    DTIC Science & Technology

    1981-10-22

    other. Compounds that have significant luminescence yields and this type of crystal structure are 4,4’- dibromobenzophenone, phthalic anhydride , and...well; that is, the double well is symmetric if the two formate (HCOO-) species have identical, fixed geometries (rigid potential) or if they are...0a 2k -’-4 w 0 0 0 [O02=\\/(DC ~ 2 10 0 0 b.1( 0 04 4 oI0 If- 00 S - 0 .C -- a Z 06 £ 4-4 56 Waggoner (5) to detect membrane formation . In this work

  15. 76 FR 8351 - Meeting of the Defense Department Advisory Committee on Women in the Services (DACOWITS)

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-14

    ... Navy Dr, Arlington, VA 22202. FOR FURTHER INFORMATION CONTACT: MSgt Robert Bowling, USAF, or DACOWITS, 4000 Defense Pentagon, Room 2C548A, Washington, DC 20301- 4000, E-mail: Robert.bowling@osd.mil... received from members of the public. Dated: February 8, 2011. Morgan F. Park, Alternate OSD...

  16. Selected applications of hydrologic science and research in Maryland, Delaware, and Washington, D.C., 2001-2003

    USGS Publications Warehouse

    Olsen, Lisa D.

    2003-01-01

    One of the roles of the U.S. Geological Survey (USGS) is to provide reliable water data and unbiased water science needed to describe and understand the Nation?s water resources. This fact sheet describes selected techniques that were used by the USGS to collect, transmit, evaluate, or interpret data, in support of investigations that describe the quantity and quality of water resources in Maryland (MD), Delaware (DE), and the District of Columbia (D.C.). These hydrologic investigations generally were performed in cooperation with universities, research centers, and other Federal, State, and local Government agencies. The applications of hydrologic science and research that were selected for this fact sheet were used or tested in the MD-DE-DC District from 2001 through 2003, and include established methods, new approaches, and preliminary research. The USGS usually relies on standard methods or protocols when conducting water-resources research. Occasionally, traditional methods must be modified to address difficult environmental questions or challenging sampling conditions. Technologies developed for other purposes can sometimes be successfully applied to the collection or dissemination of water-resources data. The USGS is continually exploring new ways to collect, transmit, evaluate, and interpret data. The following applications of hydrologic science and research illustrate a few of the recent advances made by scientists working for and with the USGS.

  17. 76 FR 18022 - Airworthiness Directives; The Boeing Company Model DC-9-14, DC-9-15, and DC-9-15F Airplanes; and...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-01

    ... Model DC-9-14, DC-9- 15, and DC-9-15F Airplanes; and DC-9-20, DC-9-30, DC-9-40, and DC-9-50 Series..., Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590. FOR FURTHER INFORMATION CONTACT...) This AD applies to The Boeing Company Model DC-9-14, DC-9- 15, DC-9-15F, DC-9-21, DC-9-31,......

  18. 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.

  19. Train crash disasters and emergency plans of suburban hospitals in the New York City and Washington, DC areas: what went right; what could have been improved.

    PubMed

    1996-06-01

    Two major train crashes in February--one in Northern New Jersey and the other in Silver Spring, MD, near Washington, DC--posed severe challenges to the disaster plans of area hospitals. The first crash involving two commuter trains near Secaucus, NJ, tested the effectiveness of emergency plans at the Jersey City Medical Center, Jersey City, NJ, and the Meadowlands Hospital Medical Center, Secaucus. The incident occurred at approximately 8:40 a.m. and resulted in three deaths and 162 injuries. The Silver Spring crash, which took place a week after the one in New Jersey, occurred in early evening and involved an Amtrak and a commuter train. It resulted in 11 deaths and 26 injuries. Holy Cross Hospital, Silver Spring, was the primary caregiver. In this report, we'll provide details on how the incidents impacted on nearby hospitals and their security staffs; how challenges, anticipated and unanticipated, were met; and what conclusions were reached in follow-up critiques.

  20. 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

    2017-01-17

    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.

  1. 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

  2. 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.

  3. Higher mosquito production in low-income neighborhoods of Baltimore and Washington, DC: understanding ecological drivers and mosquito-borne disease risk in temperate cities.

    PubMed

    LaDeau, Shannon L; Leisnham, Paul T; Biehler, Dawn; Bodner, Danielle

    2013-04-12

    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.

  4. 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.

  5. 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.

  6. Non-O157 Shiga toxin-producing Escherichia coli in retail ground beef and pork in the Washington D.C. area.

    PubMed

    Ju, Wenting; Shen, Jinling; Li, Yi; Toro, Magaly A; Zhao, Shaohua; Ayers, Sherry; Najjar, Mohamed Badaoui; Meng, Jianghong

    2012-12-01

    The prevalence and characteristics of non-O157 Shiga toxin-producing Escherichia coli (STEC) in retail ground meat from the Washington D.C. area were investigated in this study. STEC from 480 ground beef and pork samples were identified using PCR screening followed by colony hybridization. The STEC isolates were serogrouped and examined for the presence of virulence genes (stx1, stx2, eae and hlyA), and antimicrobial susceptibility. PFGE was used to identify the clonal relationships of STEC isolates, and PCR-RFLP was employed to determine stx subtypes. In addition, the cytotoxicity of STEC isolates was determined using a Vero cell assay. STEC were identified in 12 (5.2%) of 231 ground pork and 13 (5.2%) of 249 ground beef samples. Among 32 STEC isolates recovered from the 25 samples, 12 (37.5%) carried stx2dact and 7 (21.9%) carried hlyA, but none carried eae. Nine isolates were identified as O91, and 17 (53.1%) isolates were resistant to two or more antimicrobials. Verotoxicity was detected in 26 (81.3%) of the STEC isolates. Thus, the retail ground meat was contaminated with a heterogeneous population of non-O157 STEC, some of which were potential human pathogens.

  7. How will diagnostics create new opportunities for prophylactic and therapeutic vaccines?: 2011 Phacilitate Vaccine Forum, Washington DC Day 2, afternoon plenary session—January 25, 2011.

    PubMed

    Sardesai, Niranjan Y

    2011-06-01

    The Phacilitate Vaccine Forum in Washington DC (Jan 24-26, 2011) brought together vaccine stakeholders from industry, government and non-government organizations to discuss broad current issues covering the spectrum of vaccine policy, funding, research and clinical development, manufacturing, regulatory, and post marketing safety and surveillance. While the conference is held annually and the topics generally discussed reflect the emerging trends, case studies, and best practices of current interest to the vaccine industry, this year's meeting had a new plenary session focusing on the intersection of diagnostics and vaccine development. The session was chaired by Dr. Una Ryan (President and CEO, Diagnostics for All) with the provocative title "How will diagnostics create new opportunitites for prophylactic and therapeutic vaccines?" and was followed by a panel discussion amongst industry leaders discussing the key diagnostic applications gaining interest in the vaccine industry. A common theme running through the session was the increasingly significant role of companion diagnostics and immune monitoring to facilitate and accelerate vaccine development. Indeed the recent examples from pneumococcal and meningococcal vaccine development where the developers and regulatory agencies have considered the use of diagnostic assays and immune markers to assess efficacy of the candidate vaccines in regards to licensure strategies for expanding the serotypes covered, can be considered as breakthrough events for the diagnostics developers. As such the meeting and the session was timely in presenting current progress and for soliciting a convergence of opinions amongst the vaccine industry and the regulatory agencies.

  8. 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

  9. Surface water concentrations and loading budgets of pharmaceuticals and other domestic-use chemicals in an urban watershed (Washington, DC, USA).

    PubMed

    Shala, Lirije; Foster, Gregory D

    2010-04-01

    Pharmaceuticals and domestic-use chemicals (PDCs) are classes of emerging chemical contaminants thought to enter the aquatic environment primarily through wastewater treatment plant (WTP) discharges. The intent of this study was to quantify loadings of PDCs in an urban watershed. The watershed has two major branches but with wastewater discharge occurring in only one of the two major branches. Surface water from the Anacostia River (Washington, DC) was collected in base-flow and storm-flow regimes. Surface water was filtered to separate water and particles, and the PDCs were extracted from water with Oasis HLB solid-phase extraction cartridges and extracted from sediments using microwave-assisted extraction. The PDCs in the extracts were quantified using gas chromatography-mass spectrometry in the form of the trimethylsilyl ether derivatives. The most frequently detected PDC with the highest concentration was bisphenol-A in both branches of the Anacostia River watershed and the least frequently detected PDC was diclofenac. The overall median concentrations for all measured PDCs in surface water ranged from nondetectable to 54.9 ng/l. Alternatively, in the collected WTPs samples, naproxen was observed, with the highest concentration and the median concentrations in WTP effluent ranging from nondetectable to 276 ng/l. Estimates of PDC loadings for February 2006 from WTP effluent showed that <2% of the downstream load in the NE Branch was derived from WTP discharge. PDC sources other than WTP effluent appear to influence surface water concentrations in the urban Anacostia River watershed.

  10. Tumor prevalence and biomarkers of exposure and response in brown bullhead (Ameiurus nebulosus) from the Anacostia River, Washington, DC and Tuckahoe River, Maryland, USA.

    PubMed

    Pinkney, Alfred E; Harshbarger, John C; May, Eric B; Reichert, William L

    2004-03-01

    We evaluated liver and skin tumor prevalence and biomarkers of exposure and response in brown bullhead (Ameiurus nebulosus) from three locations in the Anacostia River (Washington, DC, USA), a Chesapeake Bay region of concern. The Tuckahoe River (Maryland, USA) served as a reference. Each river was sampled in fall 2000 and spring 2001. In the Anacostia, prevalence of liver tumors was 50 to 68%, and prevalence of skin tumors was 13 to 23% in large (> or = 260 mm, age > or = 3 years) bullheads. Liver and skin tumor prevalence was 10 to 17% and 0%, respectively, in small (150-225 mm, age 1-2 years) bullheads. Tuckahoe bullhead liver tumor prevalence was 0 to 3% (large) and 0% (small); none had skin tumors. Biliary polynuclear aromatic hydrocarbon (PAH)-like fluorescent metabolites and liver DNA adduct concentrations were elevated in large and small Anacostia bullheads. Mean adduct concentrations were 16 to 28 times higher than those in Tuckahoe fish. Chromatograms revealed a diagonal radioactive zone, indicating polycyclic aromatic compound (PAC)-DNA adducts. The biomarker data and the 10 to 17% liver tumor prevalence at ages 1 to 2 suggest that these year classes are likely to have a high prevalence as they reach age 3 and older. This study provides the strongest evidence to date of the role of PAHs in tumor development in Anacostia bullheads.

  11. Elevation of grove looking northeast toward Washington Monument 1910 ...

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

    Elevation of grove looking northeast toward Washington Monument - 1910 Japanese Flowering Cherry Trees , East Potomac Golf Course, East Potomac Park, Hains Point vicinity, Washington, District of Columbia, DC

  12. View of book shop on elevator reboarding level Washington ...

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

    View of book shop on elevator reboarding level - Washington Monument, High ground West of Fifteenth Street, Northwest, between Independence & Constitution Avenues, Washington, District of Columbia, DC

  13. Comparison of strategies to increase HIV testing among African-American gay, bisexual, and other men who have sex with men in Washington, DC.

    PubMed

    Baytop, Chanza; Royal, Scott; Hubbard McCree, Donna; Simmons, Ron; Tregerman, Rebecca; Robinson, Carolyn; Johnson, Wayne D; McLaughlin, Mike; Price, Cristofer

    2014-01-01

    This paper presents results from a study conducted to compare the relative effectiveness of three strategies - alternate venue testing (AVT), the social network strategy (SNS), and partner counseling and referral services (PCRS; standard care) - for reaching and motivating previously undiagnosed, African-American men who have sex with men (AA MSM) to be tested for HIV. Data were collected between June 2008 and February 2010 at a gay-identified, community-based organization (CBO) serving AA MSM in Washington, DC. Men were eligible to participate if they were 18-64 years old, self-identified as black or African-American, were biologically male, and self-reported oral or anal sex with a man in the past six months. Fisher's exact test of independence was used to assess differences in demographics, testing history, HIV status and sexual behaviors across the three strategies. The final sample included 470 men who met all eligibility requirements. There were no statistically significant differences in HIV positivity rates across the three strategies. However, relative to standard care, the SNS, and (to a lesser degree) the AVT strategies were more successful in recruiting men that had never been tested. Additionally, the results indicate that each strategy recruited different subgroups of men. Specifically, heterosexually identified men and men who reported engaging in unprotected sex were most likely to be recruited via SNS. Bisexually identified men and older men were most likely to be recruited via AVT or SNS, while standard care tended to reach greater proportions of young men and homosexually identified men. These findings suggest that a combination of strategies may be the best approach for engaging African-American MSM in HIV testing.

  14. Zinc deficiency-associated dermatitis in infants during a nationwide shortage of injectable zinc - Washington, DC, and Houston, Texas, 2012-2013.

    PubMed

    Ruktanonchai, Duke; Lowe, Michael; Norton, Scott A; Garret, Tiana; Soghier, Lamia; Weiss, Edward; Hatfield, June; Lapinski, Jeffrey; Abrams, Steven; Barfield, Wanda

    2014-01-17

    Injectable zinc, a vital component of parenteral nutrition (PN) formulations, has been in short supply in the United States since late 2012. In December 2012, three premature infants with cholestasis hospitalized in Washington, DC, experienced erosive dermatitis in the diaper area and blisters on their extremities, a condition that can be associated with zinc deficiency. All three infants were receiving PN because they had extreme cholestasis and were unable to be fed by mouth or tube. The PN administered to each infant was zinc deficient. Injectable zinc normally is added to PN for premature or medically compromised infants (e.g., those with cholestasis) by the hospital pharmacy because the amount of zinc needed by each patient differs; however, the pharmacy had run out of injectable zinc. No alternatives were available; other preparations of parenteral trace elements either contained insufficient zinc to meet infants' requirements or had the potential to cause trace element toxicity in infants with cholestasis (2). The dermatitis of one infant resolved after the patient was able to take nutrition by mouth. The other two infants were found to have low serum zinc levels. In January 2013, CDC was notified of four additional cases of zinc deficiency among infants with cholestasis who received zinc-deficient PN in a hospital in Houston, Texas. In collaboration with the Food and Drug Administration (FDA), the two hospitals obtained emergency shipments of injectable zinc. No additional cases were reported. Current injectable zinc supplies have been increasing as FDA collaborates with pharmaceutical companies to import emergency supplies. FDA is working to establish temporary backup sources should future shortages occur.

  15. 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.

  16. 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

  17. 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.

  18. 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

  19. 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

    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 meters ASL) from 400 m to 12 km AGL. 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 percent from 0-1.5 km, 10-18 percent from 1.5-3 km, and 11-25 percent 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

  20. Addressing barriers to optimal oral anticoagulation use and persistence among patients with atrial fibrillation: Proceedings, Washington, DC, December 3-4, 2012.

    PubMed

    Hess, Paul L; Mirro, Michael J; Diener, Hans-Christoph; Eikelboom, John W; Al-Khatib, Sana M; Hylek, Elaine M; Bosworth, Hayden B; Gersh, Bernard J; Singer, Daniel E; Flaker, Greg; Mega, Jessica L; Peterson, Eric D; Rumsfeld, John S; Steinberg, Benjamin A; Kakkar, Ajay K; Califf, Robert M; Granger, Christopher B

    2014-09-01

    Approximately half of patients with atrial fibrillation and with risk factors for stroke are not treated with oral anticoagulation (OAC), whether it be with vitamin K antagonists (VKAs) or novel OACs (NOACs); and of those treated, many discontinue treatment. Leaders from academia, government, industry, and professional societies convened in Washington, DC, on December 3-4, 2012, to identify barriers to optimal OAC use and adherence and to generate potential solutions. Participants identified a broad range of barriers, including knowledge gaps about stroke risk and the relative risks and benefits of anticoagulant therapies; lack of awareness regarding the potential use of NOAC agents for VKA-unsuitable patients; lack of recognition of expanded eligibility for OAC; lack of availability of reversal agents and the difficulty of anticoagulant effect monitoring for the NOACs; concerns with the bleeding risk of anticoagulant therapy, especially with the NOACs and particularly in the setting of dual antiplatelet therapy; suboptimal time in therapeutic range for VKA; and costs and insurance coverage. Proposed solutions were to define reasons for oral anticoagulant underuse classified in ways that can guide intervention and improve use, to increase awareness of stroke risk as well as the benefits and risks of OAC use via educational initiatives and feedback mechanisms, to better define the role of VKA in the current therapeutic era including eligibility and ineligibility for different anticoagulant therapies, to identify NOAC reversal agents and monitoring strategies and make knowledge regarding their use publicly available, to minimize the duration of dual antiplatelet therapy and concomitant OAC where possible, to improve time in therapeutic range for VKA, to leverage observational data sets to refine understanding of OAC use and outcomes in general practice, and to better align health system incentives.

  1. Structure, age, and tectonic setting of a multiply reactivated shear zone in the piedmont in Washington, D.C., and vicinity

    USGS Publications Warehouse

    Fleming, A.H.; Drake, A.A.

    1998-01-01

    The Rock Creek shear zone is the dominant tectonic feature in the Piedmont in Washington, D.C. and adjacent parts of Maryland, has an exposed length of 25 km, and a width of up to 3 km. The shear zone is characterized by a complicated composite fabric produced by the imposition of both ductile and brittle structures as well as the reactivation, transposition, and folding of older structures during subsequent antithetic displacement. At least five main types of structural elements are discernible and include: 1) relict, medium- to coarse-grained mylonitic foliation and related structures produced by sinistral shearing under at least middle amphibolite facies conditions; 2) a ductile fault zone having an apparent sinistral displacement of at least several km and an unknown, but possibly significant component of upward throw of the east wall; 3) pervasive, fine-grained ultramylonitic foliation associated with quartz ribbons and late oblique shear bands, generated by dextral shearing under thermal conditions that appear to have progressed from middle greenschist to sub-greenschist (semi-brittle); 4) a system of oblique-(west wall up) and dextralship faults localized chiefly within a tectonic me??lange at the junction of two major strands, and whose motion spanned the ductile-brittle transition; and 5) a system of post-Cretaceous thrust faults that cut Coastal Plain rocks as young as Quaternary as well as the previously deformed crystalline rocks. The first two sets of structures are of probable Ordovician age and are thus believed to coincide with the Taconic event, which produced regional middle to upper amphibolite facies metamorphism, widespread plutonism, and extensive southwest-vergent fold phases in this area. In contrast, the dextral shearing and faulting were generated during final thermal cooling and represent the latest Paleozoic penetrative deformation that affected this area. They are very likely Alleghanian because of their great similarity to other better

  2. Improving immunogenicity, efficacy and safety of vaccines through innovation in clinical assay development and trial design: the Phacilitate Vaccine Forum, Washington D.C. 2011.

    PubMed

    Moldovan, Ioana R; Tary-Lehmann, Magdalena

    2011-06-01

    The 9th Annual Vaccine Forum organized by Phacilitate in Washington D.C. 2011 brought together 50+ senior level speakers and over 400 participants representing all the key stakeholders concerning vaccines. The main focus of the meeting was to define priorities in the global vaccines sector from funding to manufacturing and evaluation of vaccine efficacy. A special session was devoted to improving immunogenicity, efficacy and safety of vaccines through innovation in clinical assay development and trial design. The current regulatory approach to clinical assay specification, validation and standardization that enable more direct comparisons of efficacy between trials was illustrated by the success in meningococcal vaccine development. The industry approach to validation strategies was exemplified by a new serologic test used on the diagnostic of pneumococcal pneumonia. The application of the Animal Rule to bridge clinical and non-clinical studies in botulism has allowed significant progress in developing one of the first vaccines to seek approval under the FDA Animal Efficacy Rule. An example of pushing the boundaries in the correlation of immunological responses and efficacy points was represented by a recent cell-based influenza vaccine for which the same correlates of protection apply as for the traditional, egg-based flue vaccine. In the field of HIV phase 2b studies are underway, based on promising results obtained with some vaccine candidates. The conclusion of this session was that creativity in vaccine design and evaluation is beneficial and can lead to innovative new vaccine designs as well as to validated assays to assess vaccine efficacy.

  3. Five years (2000-2004) of post-reconstruction monitoring of freshwater tidal wetlands in the urban Anacostia River, Washington, D.C. USA

    USGS Publications Warehouse

    Hammerschlag, D.; Krafft, C.

    2006-01-01

    The Anacostia River in Washington, D.C. USA consisted of over 809 hectares (2000 acres) of freshwater tidal wetlands before mandatory dredging removed most of them in the first half of the 20th century. Much of this13 kilometer (8 mile) reach was transferred to the National Park Service (NPS). Planning processes in the 1980's envisioned a restoration (rejuvenation) of some wetlands for habitat, aesthetics, water quality and interpretative purposes. Subsequently, the U.S. Army Corps of Engineers in a cost share agreement with the District of Columbia reconstructed wetlands on NPS lands at Kenilworth - 12.5 hectares (1993), Kingman 27 hectares (2000), a Fringe Marsh - 6.5 hectares (2003) and is currently constructing Heritage Marsh - 2.5 hectares (2005/2006). The USGS Patuxent Wildlife Research Center in conjunction with the University of Maryland Biological Engineering Department was contracted to conduct post-reconstruction monitoring (2000-2004) to document the relative success and progress of the Kingman Marsh reconstruction primarily based on vegetative response but also in conjunction with seed bank and soil characteristics. Results from Kingman were compared to Kenilworth Marsh (reconstructed 7 years prior), Dueling Creek Marsh (last best remaining freshwater tidal wetland bench in the urbanized Anacostia watershed) and Patuxent River Marsh (in a more natural adjacent watershed). Vegetation establishment was initially strong at Kingman, but declined rapidly as measured by cover, richness, diversity, etc. under grazing pressure from resident Canada geese and associated reduction in sediment levels. This decline did not occur at the other wetlands. The decline occurred despite a substantial seed bank that was sustained primarily be water born propagules. Soil development, as true for most juvenile wetlands, was slow with almost no organic matter accumulation. By 2004 only two of 7 planted species remained (mostly Peltandra virginica) at Kingman which did provide

  4. 16. Historic American Buildings Survey Photocopy courtesy of Washington Room, ...

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

    16. Historic American Buildings Survey Photocopy courtesy of Washington Room, D.C. Public Library POTOMAC AQUEDUCT, 1879-1887 - Potomac Aqueduct, Georgetown abutment at Georgetown waterfront, Washington, District of Columbia, DC

  5. 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

  6. Implementation of a Multimodal Mobile System for Point-of-Sale Surveillance: Lessons Learned From Case Studies in Washington, DC, and New York City

    PubMed Central

    Ganz, Ollie; Ilakkuvan, Vinu; Tacelosky, Michael; Kreslake, Jennifer; Moon-Howard, Joyce; Aidala, Angela; Vallone, Donna; Anesetti-Rothermel, Andrew; Kirchner, Thomas R

    2015-01-01

    Background In tobacco control and other fields, point-of-sale surveillance of the retail environment is critical for understanding industry marketing of products and informing public health practice. Innovations in mobile technology can improve existing, paper-based surveillance methods, yet few studies describe in detail how to operationalize the use of technology in public health surveillance. Objective The aims of this paper are to share implementation strategies and lessons learned from 2 tobacco, point-of-sale surveillance projects to inform and prepare public health researchers and practitioners to implement new mobile technologies in retail point-of-sale surveillance systems. Methods From 2011 to 2013, 2 point-of-sale surveillance pilot projects were conducted in Washington, DC, and New York, New York, to capture information about the tobacco retail environment and test the feasibility of a multimodal mobile data collection system, which included capabilities for audio or video recording data, electronic photographs, electronic location data, and a centralized back-end server and dashboard. We established a preimplementation field testing process for both projects, which involved a series of rapid and iterative tests to inform decisions and establish protocols around key components of the project. Results Important components of field testing included choosing a mobile phone that met project criteria, establishing an efficient workflow and accessible user interfaces for each component of the system, training and providing technical support to fieldworkers, and developing processes to integrate data from multiple sources into back-end systems that can be utilized in real-time. Conclusions A well-planned implementation process is critical for successful use and performance of multimodal mobile surveillance systems. Guidelines for implementation include (1) the need to establish and allow time for an iterative testing framework for resolving technical and

  7. DC66842 VIEW WEST FROM BANNEKER CIRCLE (RESERVATION NO. 719) TO ...

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

    DC-668-42 VIEW WEST FROM BANNEKER CIRCLE (RESERVATION NO. 719) TO THE DOME OF THE JEFFERSON MEMORIAL IN WEST POTOMAC PARK - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  8. DC6684 AERIAL VIEW LOOKING SLIGHTLY SOUTHEAST DOWN THE NORTH CAPITOL ...

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

    DC-668-4 AERIAL VIEW LOOKING SLIGHTLY SOUTHEAST DOWN THE NORTH CAPITOL STREET CORRIDOR FROM ABOVE THE RHODE ISLAND AVENUE VICINITY - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  9. DC66813 AERIAL VIEW OF THE NORTHWEST QUADRANT, LOOKING NORTH UP ...

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

    DC-668-13 AERIAL VIEW OF THE NORTHWEST QUADRANT, LOOKING NORTH UP THE 2 3RD STREET CORRIDOR FROM ABOVE WEST POTOMAC PARK - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  10. DC66843 VIEW OF THE INDEPENDENCE AVENUE CORRIDOR SPANNED BY THE ...

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

    DC-668-43 VIEW OF THE INDEPENDENCE AVENUE CORRIDOR SPANNED BY THE •DEPARTMENT OF AGRICULTURE BRIDGES, LOOKING WEST FROM TWELFTH STREET, SW - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  11. DC66814 AERIAL VIEW OF THE CAPITOL REFLECTING POOL, LOOKING NORTHEAST ...

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

    DC-668-14 AERIAL VIEW OF THE CAPITOL REFLECTING POOL, LOOKING NORTHEAST UP LOUISIANA AVENUE TOWARD UNION STATION FROM ABOVE THE MALL - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  12. DC66820 VISTA EAST ALONG M STREET TO THOMAS CIRCLE FROM ...

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

    DC-668-20 VISTA EAST ALONG M STREET TO THOMAS CIRCLE FROM RESERVATION NO. 14 0 AT NEW HAMPSHIRE AVENUE AND 21ST STREET, NW - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  13. DC66840 VIEW EAST ON THE SOUTHEAST/SOUTHWEST FREEWAY (IN THE HISTORIC ...

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

    DC-668-40 VIEW EAST ON THE SOUTHEAST/SOUTHWEST FREEWAY (IN THE HISTORIC F STREET CORRIDOR) FROM THE TENTH STREET PROMENADE, SW - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  14. DC65819 VIEW NORTHWEST ALONG THE POTOMAC RIVERFRONT AND INTO GEORGETOWN ...

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

    DC-658-19 VIEW NORTHWEST ALONG THE POTOMAC RIVERFRONT AND INTO GEORGETOWN FROM THE ROOF OF THE JOHN F. KENNEDY CENTER FOR THE PERFORMING ARTS - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  15. Union Proposals for Washington Schools

    ERIC Educational Resources Information Center

    Simons, William H.

    1970-01-01

    President of the Washington, D.C. Teachers' Union presents the Union's recommendations for short range solutions to their extensive educational problems in testimony before the Senate Public Health, Education, Welfare, and Safety Committee on the District of Columbia. (DM)

  16. The impacts of aerosol loading, composition, and water uptake on aerosol extinction variability in the Baltimore-Washington, D.C. 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.

    2016-01-01

    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, D.C. region was performed during 14 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 sulfate 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 inorganics 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 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 in the free troposphere (above

  17. PREFACE PASREG: The 7th International Workshop on the Processing and Applications of Superconducting (RE)BCO Large Grain Materials (Washington DC, 29-31 July 2010) PASREG: The 7th International Workshop on the Processing and Applications of Superconducting (RE)BCO Large Grain Materials (Washington DC, 29-31 July 2010)

    NASA Astrophysics Data System (ADS)

    Freyhardt, Herbert; Cardwell, David; Strasik, Mike

    2010-12-01

    Large grain, (RE)BCO bulk superconductors fabricated by top seeded melt growth (TSMG) are able to generate large magnetic fields compared to conventional, iron-based permanent magnets. Following 20 years of development, these materials are now beginning to realize their considerable potential for a variety of engineering applications such as magnetic separators, flywheel energy storage and magnetic bearings. MgB2 has also continued to emerge as a potentially important bulk superconducting material for engineering applications below 20 K due to its lack of granularity and the ease with which complex shapes of this material can be fabricated. This issue of Superconductor Science and Technology contains a selection of papers presented at the 7th International Workshop on the Processing and Applications of Superconducting (RE)BCO Large Grain Materials, including MgB2, held 29th-31sy July 2010 at the Omni Shoreham Hotel, Washington DC, USA, to report progress made in this field in the previous three year period. The workshop followed those held previously in Cambridge, UK (1997), Morioka, Japan (1999), Seattle, USA (2001), Jena, Germany (2003), Tokyo, Japan (2005) and again in Cambridge, UK (2007). The scope of the seventh PASREG workshop was extended to include processing and characterization aspects of the broader spectrum of bulk high temperature superconducting (HTS) materials, including melt-cast Bi-HTS and bulk MgB2, recent developments in the field and innovative applications of bulk HTS. A total of 38 papers were presented at this workshop, of which 30 were presented in oral form and 8 were presented as posters. The organizers wish to acknowledge the efforts of Sue Butler of the University of Houston for her local organization of the workshop. The eighth PASREG workshop will be held in Taiwan in the summer of 2012.

  18. 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

  19. 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…

  20. Washington: Hanford Nuclear Reservation

    Atmospheric Science Data Center

    2014-05-15

    ... River branches off to the right. According to Idaho's National Interagency Fire Center, the US has been experiencing the worst fire ... NASA's Jet Propulsion Laboratory, Pasadena, CA, for NASA's Science Mission Directorate, Washington, D.C. The Terra spacecraft is managed ...

  1. Washington, DC Tops EPAs List of Cities with the Most Energy Star Certified Buildings/Energy efficiency leads to a stronger economy and healthier environment

    EPA Pesticide Factsheets

    WASHINGTON - The U.S. Environmental Protection Agency (EPA) has announced its eighth-annual Top Cities list, which ranks the 25 U.S. metropolitan areas with the most Energy Star certified commercial buildings in the preceding calendar year. For th

  2. DC Water: 2009 Presidential Inauguration Supporting Documentation

    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.

  3. 75 FR 17433 - In the Matter of Certain DC-DC Controllers and Products Containing Same; Notice of Commission...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-06

    ... COMMISSION In the Matter of Certain DC-DC Controllers and Products Containing Same; Notice of Commission... Street, SW., Washington, DC 20436, telephone (202) 708-2532. Copies of non- confidential documents filed..., 500 E Street, SW., Washington, DC 20436, telephone (202) 205-2000. General information concerning...

  4. 76 FR 55109 - In the Matter of Certain DC-DC Controllers and Products Containing Same; Notice of Institution of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-06

    ... COMMISSION In the Matter of Certain DC-DC Controllers and Products Containing Same; Notice of Institution of... Trade Commission, 500 E Street, SW., Washington, DC 20436, telephone (202) 205-3061. Copies of all.... International Trade Commission, 500 E Street, SW., Washington, DC 20436, telephone 202-205-2000....

  5. 75 FR 28283 - In the Matter of: Certain DC-DC Controllers and Products Containing Same; Notice of Commission...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-20

    ... COMMISSION In the Matter of: Certain DC-DC Controllers and Products Containing Same; Notice of Commission..., 500 E Street, SW., Washington, DC 20436, telephone (202) 708-2532. Copies of non- confidential... Commission, 500 E Street, SW., Washington, DC 20436, telephone (202) 205-2000. General information...

  6. 76 FR 53346 - 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

    2011-08-26

    ... 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 AGENCY... Jersey Avenue, SE., Washington, DC 20590. Hand Delivery: Deliver to Mail address above between 9 a.m. and...) This AD applies to The Boeing Company Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83),...

  7. 75 FR 68686 - Airworthiness Directives; McDonnell Douglas Corporation Model DC-9-14, DC-9-15, and DC-9-15F...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-11-09

    ...; AD 2010-23-10] RIN 2120-AA64 Airworthiness Directives; McDonnell Douglas Corporation Model DC- 9-14, DC-9-15, and DC-9-15F Airplanes; and Model DC-9-20, DC-9-30, DC- 9-40, and DC-9-50 Series Airplanes... Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590. FOR FURTHER...

  8. 75 FR 62331 - Airworthiness Directives; McDonnell Douglas Corporation Model DC-9-14, DC-9-15, and DC-9-15F...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-08

    ... Directives; McDonnell Douglas Corporation Model DC- 9-14, DC-9-15, and DC-9-15F Airplanes; and DC-9-20, DC-9-30, DC-9-40, and DC-9-50 Series Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION... Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590. Hand Delivery: Deliver to...

  9. 76 FR 1993 - 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

    2011-01-12

    ... 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 AGENCY... Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590. FOR FURTHER INFORMATION.... Applicability (c) This AD applies to The Boeing Company Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83...

  10. 76 FR 41651 - 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

    2011-07-15

    ... 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 AGENCY... Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590. FOR FURTHER INFORMATION...) This AD applies to The Boeing Company Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83),...

  11. 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

    ... 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 AGENCY... Jersey Avenue, SE., Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Roger Durbin, Aerospace.... Applicability (c) This AD applies to all The Boeing Company Model DC-9-81 (MD- 81), DC-9-82 (MD-82), DC-9-83...

  12. 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.

  13. Problems in Urban Centers. Oversight Hearings before the Committee on the District of Columbia. House of Representatives, Ninety-Sixth Congress, Second Session on Problems in Urban Centers, Washington, D.C., and the Federal Government Role (June 25, 26, 27, July 23, 24, 30, and September 30, 1980). [Volume I]. Serial No. 96-16.

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC. House Committee on the District of Columbia.

    This is a transcript which documents 1980 hearings of the House of Representatives Committee on the District of Columbia. The transcript compares past and present conditions in Washington, D.C. and other American cities; surveys how Federal assistance has helped or hindered the ability of cities to confront urban problems; and explores how Federal…

  14. 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…

  15. 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

  16. 14 CFR 93.339 - Requirements for operating in the DC SFRA, including the DC FRZ.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 2 2014-01-01 2014-01-01 false Requirements for operating in the DC SFRA, including the DC FRZ. 93.339 Section 93.339 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Washington, DC Metropolitan Area Special Flight Rules Area § 93.339 Requirements for operating in the DC...

  17. 14 CFR 93.339 - Requirements for operating in the DC SFRA, including the DC FRZ.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Requirements for operating in the DC SFRA, including the DC FRZ. 93.339 Section 93.339 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Washington, DC Metropolitan Area Special Flight Rules Area § 93.339 Requirements for operating in the DC...

  18. 14 CFR 93.339 - Requirements for operating in the DC SFRA, including the DC FRZ.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 2 2013-01-01 2013-01-01 false Requirements for operating in the DC SFRA, including the DC FRZ. 93.339 Section 93.339 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Washington, DC Metropolitan Area Special Flight Rules Area § 93.339 Requirements for operating in the DC...

  19. 14 CFR 93.339 - Requirements for operating in the DC SFRA, including the DC FRZ.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 2 2012-01-01 2012-01-01 false Requirements for operating in the DC SFRA, including the DC FRZ. 93.339 Section 93.339 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Washington, DC Metropolitan Area Special Flight Rules Area § 93.339 Requirements for operating in the DC...

  20. 14 CFR 93.339 - Requirements for operating in the DC SFRA, including the DC FRZ.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Requirements for operating in the DC SFRA, including the DC FRZ. 93.339 Section 93.339 Aeronautics and Space FEDERAL AVIATION ADMINISTRATION... Washington, DC Metropolitan Area Special Flight Rules Area § 93.339 Requirements for operating in the DC...

  1. 76 FR 13543 - 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

    2011-03-14

    ... 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 AGENCY... Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590. Hand Delivery: Deliver to Mail... stabilizer is similar in design and loading to that of the Model DC-9-81 (MD-81), DC- 9-82 (MD-82),...

  2. 75 FR 446 - In the Matter of Certain DC-DC Controllers and Products; Notice of Investigation

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-05

    ... Doc No: E9-31252] INTERNATIONAL TRADE COMMISSION [Inv. No. 337-TA-698] In the Matter of Certain DC--DC... sale for importation, and the sale within the United States after importation of certain DC--DC... Commission, 500 E Street, SW., Room 112, Washington, DC 20436, telephone 202-205-2000. Hearing...

  3. Public involvement case study -- The public, the media, and chemical weapons in the front yard: Spring Valley, Washington, D.C. (1993)

    SciTech Connect

    Crawford, K.

    1994-12-31

    On January 5, 1993, a worker digging a utility trench in an upscale Washington neighborhood uncovered some World War I chemical munitions. Once emergency officials heard the words ``poison gas`` and ``munitions,`` District of Columbia emergency equipment and workers streamed into the neighborhood. Reporters descended on the site. Soldiers in chemical suits arrived. Residents were evacuated. With the onslaught of flashing police lights, uniformed soldiers, and omnipresent news cameras, local homeowners began to panic. This one site had all the attributes of a great news story: disaster, panic, conflict, danger, and big government. But you didn`t see this story played out nightly on CNN. In fact, it wasn`t picked up as a major, controversial story. That`s because of the excellent work by those removing the munitions and a strong public involvement program. These turned a potential public relations disaster and media nightmare into a success story. Public involvement changed angry, frightened citizens into firm believers in the project. It turned cynical media into informed news outlets. And it made the munitions removal effort easier. The focus of this paper, however, is on the public relations battle.

  4. A Special Treat Awaits Zoophiles in Washington.

    ERIC Educational Resources Information Center

    Park, Edwards

    1993-01-01

    Describes the Amazonia exhibit at the Smithsonian's National Zoological Park, in Washington DC. The exhibit provides an example of the plant and animal life that exist in a tropical rain forest. (MDH)

  5. Shackling the shoulders of giants. A report on excerpts from the National Academies' Symposium on the Role of Scientific and Technical Data and Information in the Public Domain, Washington, DC, September 5-6, 2002.

    PubMed

    Gardenier, John S

    2003-07-01

    This paper informally summarizes a two-day symposium held at the U.S. National Academy of Sciences in Washington, D.C., September 5-6, 2002. The issue was to what extent the progress of science and societal capacity for continued technological innovation are threatened by excessive protection of intellectual property. Excessive protection creates disadvantages not only for scientists and inventors but also for educators/students and for librarians/clientele. Speakers from a variety of disciplines and institutions agreed unanimously that scientific and technological progress is, indeed, under serious threat. Various opinions were expressed about the degree of threat, currently and prospectively, as well as what counter-measures are best suited to resist undue restrictions on creative uses of scientific and technical data and information. This summary is based entirely on the author's notes from the symposium, and the commentary offered is his alone. My apologies to the speakers if this paper does not accurately reflect the primary intent of their presentations. The "Suggested Readings" offered at the end are not specific to the speakers' statements but rather are offered as a general resource to aid further research. The definitive record of the symposium is planned to be available from the National Academies Press as a Proceedings publication in the summer of 2003.

  6. 76 FR 52225 - 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

    2011-08-22

    ... 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 AGENCY... Ground Floor, Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590. FOR FURTHER INFORMATION... ADs (b) None. Applicability (c) This AD applies to The Boeing Company Model DC-9-81 (MD-81),...

  7. 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

  8. Washington Education Association Directory, 2000.

    ERIC Educational Resources Information Center

    Council for Advancement and Support of Education, Washington, DC.

    This directory presents profiles of 73 higher education associations located in the Washington, DC (and northern Virginia) area. Preliminary information includes an alphabetical list of the associations by full name and an alphabetical list by organizational acronym. Each profile includes the organization's address, telephone numbers, e-mail and…

  9. No Easy Answers: Persistent Poverty in the Metropolitan Washington Area.

    ERIC Educational Resources Information Center

    Maxwell, Joan Paddock

    This paper examines the extent and nature of poverty in Metropolitan Washington, D.C., how it compares to poverty in other similar metropolitan areas, and what can be done to reduce the numbers of persons suffering from persistent poverty in Washington. According to 1970 and 1980 U.S. Census Bureau data, poverty in the Washington, D.C.,…

  10. 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

  11. 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

  12. 75 FR 65651 - In the Matter of Certain DC-DC Controllers and Products Containing Same; Notice of Commission...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-26

    ... COMMISSION In the Matter of Certain DC-DC Controllers and Products Containing Same; Notice of Commission..., DC 20436, telephone (202) 708-2532. Copies of non- confidential documents filed in connection with...., Washington, DC 20436, telephone (202) 205-2000. General information concerning the Commission may also...

  13. 75 FR 65655 - In the Matter of Certain DC-DC Controllers and Products Containing Same; Notice of Commission...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-26

    ... COMMISSION In the Matter of Certain DC-DC Controllers and Products Containing Same; Notice of Commission..., DC 20436, telephone (202) 708-2532. Copies of non- confidential documents filed in connection with...., Washington, DC 20436, telephone (202) 205-2000. General information concerning the Commission may also...

  14. 75 FR 82333 - Airworthiness Directives; McDonnell Douglas Corporation Model DC-10-10, DC-10-10F, and MD-10-10F...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-30

    ... Corporation Model DC- 10-10, DC-10-10F, and MD-10-10F Airplanes AGENCY: Federal Aviation Administration (FAA... directive (AD) for certain Model DC-10-10, DC-10-10F, and MD-10-10F airplanes. This proposed AD would...., Washington, DC 20590. Hand Delivery: U.S. Department of Transportation, Docket Operations, M-30,...

  15. Privatizing Airports in Washington, D.C.

    DTIC Science & Technology

    1983-02-01

    E1tnrcation, end Eutiecti So liolltfrt. Novel PC School. Feb 23-25, 1976). 1) 4071 472 Expiolted Animl Popuietioims," 46 PP., Nor 197111 AD ADM6 936 pp 214...Good Are Warfare Model $5?- I pp.. PP 293 May I9"I. AD AlOO 421 Thoas, James A.. Jr., "Evaluation f Kinetic Theory collision Integreis Using the...Technical inefficiency In the Stochastic Frontier Production Roberts. Stephen S.. "The U.S. Navy In the 1900s,- 36 pp.. cunction Model ," 11 pp., Jan 1961, AD

  16. Center for Applied Linguistics, Washington DC, USA

    ERIC Educational Resources Information Center

    Sugarman, Julie; Fee, Molly; Donovan, Anne

    2015-01-01

    The Center for Applied Linguistics (CAL) is a private, nonprofit organization with over 50 years' experience in the application of research on language and culture to educational and societal concerns. CAL carries out its mission to improve communication through better understanding of language and culture by engaging in a variety of projects in…

  17. 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

    ... 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) Airplanes, MD-88 Airplanes, and MD-90-30..., Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590. Hand Delivery: U.S. Department...

  18. 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…

  19. DC6682 AERIAL VIEW LOOKING SOUTH DOWN THE NORTH CAPITOL STREET ...

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

    DC-668-2 AERIAL VIEW LOOKING SOUTH DOWN THE NORTH CAPITOL STREET CORRIDOR FROM ABOVE THE MICHIGAN AVENUE VICINITY (Photograph has been enlarged from a 4x5 negative)ING NORTH ALONG SIXTEENTH STREET - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  20. DC66841 VIEW NORTH ON THE TENTH STREET PROMENADE SHOWING THE ...

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

    DC-668-41 VIEW NORTH ON THE TENTH STREET PROMENADE SHOWING THE DEPARTMENT OF ENERGY BUILDING BLOCKING THE VISTA TO THE SMITHSONIAN CASTLE WITH THE BANNEKER CIRCLE (RESERVATION NO. 719) FOUNTAIN IN THE FOREGROUND - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  1. DC66812 AERIAL VIEW OF THE 14TH AND 15TH STREET CORRIDORS, ...

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

    DC-668-12 AERIAL VIEW OF THE 14TH AND 15TH STREET CORRIDORS, LOOKING NORTH FROM ABOVE EAST POTOMAC PARK TOWARD THE MALL AND BEYOND - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  2. DC6683 AERIAL VIEW LOOKING SOUTHWEST INTO THE CITY FROM THE ...

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

    DC-668-3 AERIAL VIEW LOOKING SOUTHWEST INTO THE CITY FROM THE BEND IN NORTH CAPITOL STREET IN THE MICHIGAN AVENUE VICINITY (Photograph has been enlarged from a 4x5 negative) - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  3. DC6687 AERIAL VIEW OF THE SOUTHEAST QUADRANT, LOOKING NORTHWEST FROM ...

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

    DC-668-7 AERIAL VIEW OF THE SOUTHEAST QUADRANT, LOOKING NORTHWEST FROM ABOVE THE ANACOSTIA RIVER (Photograph has been enlarged from a 4x5 negative) - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  4. DC6685 AERIAL VIEW LOOKING SOUTHWEST INTO THE CITY TOWARD THE ...

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

    DC-668-5 AERIAL VIEW LOOKING SOUTHWEST INTO THE CITY TOWARD THE ROBERT F. KENNEDY STADIUM FROM ABOVE THE EAST SHORE OF THE ANACOSTIA RIVER (Photograph has been enlarged from a 4x5 negative) - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  5. DC6681 AERIAL VIEW LOOKING SOUTHEAST DOWN THE MOUNT PLEASANT AND ...

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

    DC-668-1 AERIAL VIEW LOOKING SOUTHEAST DOWN THE MOUNT PLEASANT AND 17TH STREET CORRIDORS (Photograph has been enlarged from a 4x5 negative) - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  6. DC66821 VIEW NORTHWEST TOWARD RESERVATION NO. 715 AND THE E ...

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

    DC-668-21 VIEW NORTHWEST TOWARD RESERVATION NO. 715 AND THE E STREET EXPRESSWAY ENTRY AT 19TH AND E STREETS, NW FROM THE ROOF OF THE DEPARTMENT OF THE INTERIOR. - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  7. DC66822 VIEW SOUTH TOWARD VIRGINIA AVENUE AND TO WEST POTOMAC ...

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

    DC-668-22 VIEW SOUTH TOWARD VIRGINIA AVENUE AND TO WEST POTOMAC PARK BEYOND FROM THE ROOF OF THE DEPARTMENT OF THE INTERIOR AT 19TH AND C STREETS, NW - L'Enfant-McMillan Plan of Washington, DC, Washington, District of Columbia, DC

  8. Workforce: Washington

    ERIC Educational Resources Information Center

    Western Interstate Commission for Higher Education, 2006

    2006-01-01

    In Washington, the demand for well-educated employees will only increase over the next several years. In the decade leading up to 2012, healthcare occupations will see growth of 20 percent. Teachers will be in demand: nearly 9,000 new elementary and middle-school educators will need to be hired. Computer fields will undergo growth of 24 percent,…

  9. 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…

  10. The Community is the Classroom in Washington State

    ERIC Educational Resources Information Center

    Hulst, Thomas R.; Wark, Robert G.

    1975-01-01

    A description of the functioning, problems, and coordinator roles for Washington State's Community Involvement Program--a systematic effort to place students off-campus in practical learning situations that will augment their formal classroom training--now operating in Washington's 27 community colleges. (DC)

  11. 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.

  12. Community Involvement in Public Education: Parents United for the D.C. Public Schools. CWAS Occasional Paper 11.

    ERIC Educational Resources Information Center

    Speicher, Anna

    A case study was done of the community-based education reform group, Parents United for the D.C. Public Schools in Washington, D.C. Data for the study came from written records; from interviews with Parents United staff and officers, members of the Board of Education, and others familiar with public education in Washington, D.C.; and from public…

  13. 77 FR 31341 - Application To Export Electric Energy; DC Energy, LLC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-25

    ... Application To Export Electric Energy; DC Energy, LLC AGENCY: Office of Electricity Delivery and Energy Reliability, DOE. ACTION: Notice of Application. SUMMARY: DC Energy, LLC (DC Energy) has applied to renew its... of Energy, 1000 Independence Avenue SW., Washington, DC 20585-0350. Because of delays in...

  14. 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…

  15. 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

  16. 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.

  17. 75 FR 11583 - District of Columbia Disaster #DC-00001

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-11

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION District of Columbia Disaster DC-00001 AGENCY: U.S. Small Business Administration. ACTION: Notice..., Washington, DC 20416. SUPPLEMENTARY INFORMATION: Notice is hereby given that as a result of the...

  18. 75 FR 17791 - District of Columbia Disaster # DC-00002

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-07

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION District of Columbia Disaster DC-00002 AGENCY: U.S. Small Business Administration. ACTION: Notice...., Suite 6050, Washington, DC 20416. SUPPLEMENTARY INFORMATION: Notice is hereby given that as a result...

  19. 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.

  20. 76 FR 20968 - Application To Export Electric Energy; DC Energy Texas, LLC

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-14

    ... Application To Export Electric Energy; DC Energy Texas, LLC AGENCY: Office of Electricity Delivery and Energy Reliability, DOE. ACTION: Notice of application. SUMMARY: DC Energy Texas, LLC (DCE Texas) has requested.... Department of Energy, 1000 Independence Avenue, SW., Washington, DC 20585-0350. Because of delays in...

  1. 14 CFR 93.337 - Requirements for operating in the DC SFRA.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 2 2012-01-01 2012-01-01 false Requirements for operating in the DC SFRA... TRANSPORTATION (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Washington, DC Metropolitan Area Special Flight Rules Area § 93.337 Requirements for operating in the DC SFRA. A...

  2. 14 CFR 93.337 - Requirements for operating in the DC SFRA.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Requirements for operating in the DC SFRA... TRANSPORTATION (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Washington, DC Metropolitan Area Special Flight Rules Area § 93.337 Requirements for operating in the DC SFRA. A...

  3. 14 CFR 93.341 - Aircraft operations in the DC FRZ.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 2 2014-01-01 2014-01-01 false Aircraft operations in the DC FRZ. 93.341... (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Washington, DC Metropolitan Area Special Flight Rules Area § 93.341 Aircraft operations in the DC FRZ. (a) Except as provided...

  4. 14 CFR 93.341 - Aircraft operations in the DC FRZ.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 2 2012-01-01 2012-01-01 false Aircraft operations in the DC FRZ. 93.341... (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Washington, DC Metropolitan Area Special Flight Rules Area § 93.341 Aircraft operations in the DC FRZ. (a) Except as provided...

  5. 14 CFR 93.341 - Aircraft operations in the DC FRZ.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 2 2013-01-01 2013-01-01 false Aircraft operations in the DC FRZ. 93.341... (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Washington, DC Metropolitan Area Special Flight Rules Area § 93.341 Aircraft operations in the DC FRZ. (a) Except as provided...

  6. 5 CFR 591.215 - Where does OPM collect prices in the COLA and DC areas?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... and DC areas? 591.215 Section 591.215 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL... Areas Cost-Of-Living Allowances § 591.215 Where does OPM collect prices in the COLA and DC areas? (a.... John. The Washington, DC, area has three survey areas: the District of Columbia, the Maryland...

  7. 5 CFR 591.215 - Where does OPM collect prices in the COLA and DC areas?

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... and DC areas? 591.215 Section 591.215 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL... Areas Cost-Of-Living Allowances § 591.215 Where does OPM collect prices in the COLA and DC areas? (a.... John. The Washington, DC, area has three survey areas: the District of Columbia, the Maryland...

  8. 77 FR 69812 - Agency Information Collection Activities; Comment Request; DC Choice Evaluation

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-21

    ... Agency Information Collection Activities; Comment Request; DC Choice Evaluation AGENCY: Institute of..., Washington, DC 20202-4537. FOR FURTHER INFORMATION CONTACT: Electronically mail ICDocketMgr@ed.gov . Please... of Collection: DC Choice Evaluation. OMB Control Number: Pending. Type of Review: New...

  9. 14 CFR 93.337 - Requirements for operating in the DC SFRA.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 2 2013-01-01 2013-01-01 false Requirements for operating in the DC SFRA... TRANSPORTATION (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Washington, DC Metropolitan Area Special Flight Rules Area § 93.337 Requirements for operating in the DC SFRA. A...

  10. 14 CFR 93.341 - Aircraft operations in the DC FRZ.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Aircraft operations in the DC FRZ. 93.341... (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Washington, DC Metropolitan Area Special Flight Rules Area § 93.341 Aircraft operations in the DC FRZ. (a) Except as provided...

  11. 14 CFR 93.337 - Requirements for operating in the DC SFRA.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 2 2014-01-01 2014-01-01 false Requirements for operating in the DC SFRA... TRANSPORTATION (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Washington, DC Metropolitan Area Special Flight Rules Area § 93.337 Requirements for operating in the DC SFRA. A...

  12. 5 CFR 591.215 - Where does OPM collect prices in the COLA and DC areas?

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... and DC areas? 591.215 Section 591.215 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL... Areas Cost-Of-Living Allowances § 591.215 Where does OPM collect prices in the COLA and DC areas? (a.... John. The Washington, DC, area has three survey areas: the District of Columbia, the Maryland...

  13. 14 CFR 93.341 - Aircraft operations in the DC FRZ.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Aircraft operations in the DC FRZ. 93.341... (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Washington, DC Metropolitan Area Special Flight Rules Area § 93.341 Aircraft operations in the DC FRZ. (a) Except as provided...

  14. 5 CFR 591.215 - Where does OPM collect prices in the COLA and DC areas?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... and DC areas? 591.215 Section 591.215 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL... Areas Cost-Of-Living Allowances § 591.215 Where does OPM collect prices in the COLA and DC areas? (a.... John. The Washington, DC, area has three survey areas: the District of Columbia, the Maryland...

  15. 5 CFR 591.215 - Where does OPM collect prices in the COLA and DC areas?

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... and DC areas? 591.215 Section 591.215 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT CIVIL... Areas Cost-Of-Living Allowances § 591.215 Where does OPM collect prices in the COLA and DC areas? (a.... John. The Washington, DC, area has three survey areas: the District of Columbia, the Maryland...

  16. 14 CFR 93.337 - Requirements for operating in the DC SFRA.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Requirements for operating in the DC SFRA... TRANSPORTATION (CONTINUED) AIR TRAFFIC AND GENERAL OPERATING RULES SPECIAL AIR TRAFFIC RULES Washington, DC Metropolitan Area Special Flight Rules Area § 93.337 Requirements for operating in the DC SFRA. A...

  17. Freeway and arterial management effort in Washington state

    SciTech Connect

    Jacobson, L.N. )

    1989-11-01

    Traffic congestion and personal mobility preservation are the most challenging issues facing transportation professionals. From Phoenix to San Francisco to Washington, D.C., citizens are identifying transportation as their number one concern, outweighing issues such as pollution, overpopulation, unemployment, and crime. In the state of Washington, particularly in the greater Seattle area, congestion is likewise a major concern. In order to address the mobility problems facing the urban areas of Washington, the state initiated a new transportation research and implementation program in October 1987. The program is called Freeway and Arterial Management Effort (FAME). The focus of the program is discussed by the author.

  18. GLASS FORMULATION TESTING TO INCREASE SULFATE INCORPORATION - Final Report VSL-04R4960-1, Rev 0, 2/28/05, Vitreous State Laboratory, The Catholic University of American, Washington, D.C.

    SciTech Connect

    KRUGER AA; MATLACK KS

    2012-02-07

    About 50 million gallons of high-level mixed waste is currently in storage in underground tanks at The United States Department of Energy's (DOE's) Hanford site in the State of Washington. The Hanford Tank Waste Treatment and Immobilization Plant (WTP) will provide DOE's Office of River Protection (ORP) with a means of treating this waste by vitrification for subsequent disposal. The tank waste will be separated into low- and high-activity fractions, which will then be vitrified respectively into Immobilized Low Activity Waste (ILAW) and Immobilized High Level Waste (IHLW) products. The ILAW product will be disposed of in an engineered facility on the Hanford site while the IHLW product will be directed to the national deep geological disposal facility for high-level nuclear waste. The ILAW and IHLW products must meet a variety of requirements with respect to protection of the environment before they can be accepted for disposal. The Office of River Protection is currently examining options to optimize the Low Activity Waste (LAW) facility and the LAW glass waste form. One option under evaluation is to enhance the waste processing rate of the vitrification plant currently under construction. It is likely that the capacity of the LAW vitrification plant can be increased incrementally by implementation of a variety of low-risk, high-probability changes, either separately or in combination. These changes include: (1) Operating at the higher processing rates demonstrated at the LAW Pilot Melter; (2) Increasing the glass pool surface area within the existing external melter envelope; (3) Increasing plant availability; (4) Increasing the glass waste loading; (5) Removing sulfate from the LAW stream; (6) Operating the melter at slightly higher temperature; (7) Installing the third LAW melter into the WTP plant; and (8) Other smaller impact changes. The melter tests described in this report utilized blended feed (glass formers plus waste simulant) prepared by Optima

  19. Adaptable DC offset correction

    NASA Technical Reports Server (NTRS)

    Golusky, John M. (Inventor); Muldoon, Kelly P. (Inventor)

    2009-01-01

    Methods and systems for adaptable DC offset correction are provided. An exemplary adaptable DC offset correction system evaluates an incoming baseband signal to determine an appropriate DC offset removal scheme; removes a DC offset from the incoming baseband signal based on the appropriate DC offset scheme in response to the evaluated incoming baseband signal; and outputs a reduced DC baseband signal in response to the DC offset removed from the incoming baseband signal.

  20. An annotated checklist of the vascular flora of Washington County Mississippi

    Technology Transfer Automated Retrieval System (TEKTRAN)

    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 ...

  1. 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…

  2. Calvin Chase's Washington "Bee" and Black Middle-Class Ideology, 1882- 1900.

    ERIC Educational Resources Information Center

    Howard-Pitney, David

    1986-01-01

    Examines the life and career of the Washington, D.C., newspaper editor who dominated black journalism in the nation's capital during the years (1882-1922) when it was the center of Afro-American political and intellectual life. Notes his opposition to Booker T. Washington. (FL)

  3. 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... DC survey areas identified in § 591.215(a) and then averages these average prices together...

  4. 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... DC survey areas identified in § 591.215(a) and then averages these average prices together...

  5. 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... DC survey areas identified in § 591.215(a) and then averages these average prices together...

  6. 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... DC survey areas identified in § 591.215(a) and then averages these average prices together...

  7. 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... DC survey areas identified in § 591.215(a) and then averages these average prices together...

  8. 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…

  9. Booker T. Washington Rediscovered

    ERIC Educational Resources Information Center

    Bieze, Michael Scott, Ed.; Gasman, Marybeth, Ed.

    2012-01-01

    Booker T. Washington, a founding father of African American education in the United States, has long been studied, revered, and reviled by scholars and students. Born into slavery, freed and raised in the Reconstruction South, and active in educational reform through the late nineteenth and early twentieth centuries, Washington sought to use…

  10. 76 FR 35211 - Palmco Power DC, LLC; Supplemental Notice THAT Initial Market-Based Rate Filing Includes Request...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-16

    ... Energy Regulatory Commission Palmco Power DC, LLC; Supplemental Notice THAT Initial Market- Based Rate...-referenced proceeding of Palmco Power DC, LLC's application for market-based rate authority, with an...., Washington, DC 20426, in accordance with Rules 211 and 214 of the Commission's Rules of Practice...

  11. 76 FR 20722 - In the Matter of Indiana Michigan Power Company; DC Cook Nuclear Plant Independent Spent Fuel...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-13

    ... COMMISSION In the Matter of Indiana Michigan Power Company; DC Cook Nuclear Plant Independent Spent Fuel... notice, in the matter of DC Cook Nuclear Plant Independent Spent Fuel Storage Installation (ISFSI) Order..., 2001, terrorists simultaneously attacked targets in New York, NY, and Washington, DC, using...

  12. Geothermal Technologies Program: Washington

    SciTech Connect

    Not Available

    2005-02-01

    This fact sheets provides a summary of geothermal potential, issues, and current development in Washington State. This fact sheet was developed as part of DOE's GeoPowering the West initiative, part of the Geothermal Technologies Program.

  13. Dr. Michael MacCracken, Climate Institute, Washington, DC

    ScienceCinema

    Dr. Michael MacCracken

    2016-07-12

    Achieving International Agreement and Climate Protection by Coordinated Mitigation of Short- and Long-Lived Greenhouse Gases. Presented at the China-US Workshop on the "Climate-Energy Nexus" at Oak Ridge National Laboratory on November 11, 2009.

  14. Kennedy and Shepard in Washington D.C.

    NASA Technical Reports Server (NTRS)

    1961-01-01

    President John F. Kennedy congratulates astronaut Alan B. Shepard, Jr., the first American in space, on his historic May 5th, 1961 ride in the Freedom 7 spacecraft and presents him with the NASA Distinguished Service Award. The ceremony took place on the White House lawn. Shepard's wife, Louise (left in white dress and hat), and his mother were in attendance as well as the other six Mercury astronauts and NASA officals, some visible in the background.

  15. Capturing History: Abigail Grotke--Library of Congress, Washington, DC

    ERIC Educational Resources Information Center

    Library Journal, 2004

    2004-01-01

    In a career full of twists and turns, Abbie Grotke picked up the skills to help her land her ideal job: Digital Projects Coordinator for the Library of Congress. Presently, she oversees Minerva (Mapping the INternet Hectronic Resources Virtual Archive, www.loc.gov/minerva), a project to collect and preserve those materials that were "born…

  16. Dr. Michael MacCracken, Climate Institute, Washington, DC

    SciTech Connect

    Dr. Michael MacCracken

    2009-11-13

    Achieving International Agreement and Climate Protection by Coordinated Mitigation of Short- and Long-Lived Greenhouse Gases. Presented at the China-US Workshop on the "Climate-Energy Nexus" at Oak Ridge National Laboratory on November 11, 2009.

  17. City Views on Drug Abuse: A Washington, DC Survey.

    ERIC Educational Resources Information Center

    Hart (Peter D.) Research Associates, Inc., Washington, DC.

    A telephone survey was done of a representative sample of 801 adults in the District of Columbia. The survey explored District residents' attitudes about the current situation in the city and in their neighborhoods, with specific emphasis on their attitudes toward drug abuse and drug policy in the District of Columbia. The margin of error for the…

  18. Glacial age marsh, Lafayette Park, Washington, D.C.

    USGS Publications Warehouse

    Knox, A.S.

    1969-01-01

    Organic sediments beneath historic Lafayette Park mark the site of a freshwater marsh which bordered the Potomac River when it was 15 meters above its present level. Plant microfossils and ice-rafted boulders indicate a climate much colder than now. The carbon-14 age of more than 45,000 years and palynological studies suggest an early Wisconsin age.

  19. Advances in Exposure Science (Washington, DC Modernized TSCA meeting)

    EPA Science Inventory

    I am describing current research from the Chemical Safety for Sustainability research program's Rapid Exposure and Dosimetry project that relates to predicting human exposure to environmental chemicals for thousands of chemicals.

  20. Doubly fed machine review: agenda. Conference report, Washington, DC

    SciTech Connect

    Not Available

    1982-09-01

    The visual aids presented at the doubly fed machine review are presented. The doubly fed machine is a generating system either for wind turbines or hydro systems. Conceptual design and trade-offs are included, as well as testing. (LEW)

  1. Tiger Team assessment of the Lawrence Berkeley Laboratory, Washington, DC

    SciTech Connect

    Not Available

    1991-02-01

    This report documents the results of the Department of Energy's (DOE's) Tiger Team Assessment of the Lawrence Berkeley Laboratory (LBL) conducted from January 14 through February 15, 1991. The purpose of the assessment was to provide the Secretary of Energy with the status of environment, safety, and health (ES H) programs at LBL. The Tiger Team concluded that curtailment of cessation of any operations at LBL is not warranted. However, the number and breadth of findings and concerns from this assessment reflect a serious condition at this site. In spite of its late start, LBL has recently made progress in increasing ES H awareness at all staff levels and in identifying ES H deficiencies. Corrective action plans are inadequate, however, many compensatory actions are underway. Also, LBL does not have the technical expertise or training programs nor the tracking and followup to effectively direct and control sitewide guidance and oversight by DOE of ES H activities at LBL. As a result of these deficiencies, the Tiger Team has reservations about LBL's ability to implement effective actions in a timely manner and, thereby, achieve excellence in their ES H program. 4 figs., 24 tabs.

  2. Goodwill Ambassador: Michael Neubert--Library of Congress, Washington, DC

    ERIC Educational Resources Information Center

    Library Journal, 2004

    2004-01-01

    This article details the work of Michael Neubert from the Library of Congress. It briefly discusses his interest in Russian studies and how it originated. It then discusses that when he received his M.A. in Soviet Studies he was not sure how he would make a living--until he read about the job opportunities for area studies librarians.

  3. Enhancement of the Monet/Atonet Washington DC Network

    DTIC Science & Technology

    2003-01-01

    Technologies Sponsored by Defense Advanced Research Projects Agency DARPA Order No. J792 APPROVED FOR PUBLIC RELEASE... EDFA gain increases during "off" period................................................... 17 Figure 12 Modulated channel after passing through...path (power added and dropped in the same NE without passing into the network) for a modulated input. Because modulation is less than 100%, EDFA gain

  4. Efficient dc-to-dc converter

    NASA Technical Reports Server (NTRS)

    Black, J. M.

    1978-01-01

    Circuit consists of chopper section which converts input dc to square wave, followed by bridge-rectifier stage. Chopper gives nearly-ideal switching characteristics, and bridge uses series of full-wave stages rather than less-efficient half-wave rectifiers found in previous circuits. Special features of full-wave circuit allow redundant components to be eliminated, lowering parts count. Circuit can also be adapted for use as dc-to-dc converter or as combination dc-and-ac source.

  5. 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.

  6. 77 FR 47907 - District of Columbia Disaster #DC-00005

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-10

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION District of Columbia Disaster DC-00005 AGENCY: U.S. Small Business Administration. ACTION: Notice... Disaster Assistance, U.S. Small Business Administration, 409 3rd Street SW., Suite 6050, Washington,...

  7. 76 FR 62131 - District of Columbia Disaster #DC-00003

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-06

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION District of Columbia Disaster DC-00003 AGENCY: U.S. Small Business Administration. ACTION: Notice... Disaster Assistance, U.S. Small Business Administration, 409 3rd Street, SW., Suite 6050, Washington,...

  8. 77 FR 74907 - District of Columbia Disaster #DC-00006

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-12-18

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION District of Columbia Disaster DC-00006 AGENCY: U.S. Small Business Administration. ACTION: Notice... Disaster Assistance, U.S. Small Business Administration, 409 3rd Street SW., Suite 6050, Washington,...

  9. 76 FR 72021 - District of Columbia Disaster #DC-00004

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-21

    ... From the Federal Register Online via the Government Publishing Office SMALL BUSINESS ADMINISTRATION District of Columbia Disaster DC-00004 AGENCY: U.S. Small Business Administration. ACTION: Notice... Disaster Assistance, U.S. Small Business Administration, 409 3rd Street SW., Suite 6050, Washington,...

  10. DC source assemblies

    DOEpatents

    Campbell, Jeremy B; Newson, Steve

    2013-02-26

    Embodiments of DC source assemblies of power inverter systems of the type suitable for deployment in a vehicle having an electrically grounded chassis are provided. An embodiment of a DC source assembly comprises a housing, a DC source disposed within the housing, a first terminal, and a second terminal. The DC source also comprises a first capacitor having a first electrode electrically coupled to the housing, and a second electrode electrically coupled to the first terminal. The DC source assembly further comprises a second capacitor having a first electrode electrically coupled to the housing, and a second electrode electrically coupled to the second terminal.

  11. Indians of Washington State.

    ERIC Educational Resources Information Center

    Washington Office of the State Superintendent of Public Instruction, Olympia.

    Maps, photographs, and illustrations are included in this introductory history of Indians in Washington state. The tribal groups of the area are classified by geographic and cultural region as Coastal, Puget Sound, and Plateau tribes, and the majority of the resource booklet provides information about the history and culture of each group.…

  12. Working in Washington.

    ERIC Educational Resources Information Center

    Silberman, Harry F.

    1980-01-01

    The natural conflict in a governmental system of checks and balances has a ripple effect, beginning with the low morale in Washington offices and ending with the recipients of program funds. A new Department of Education will not alter the problem. (Author/IRT)

  13. Fun D.C. Jobs for Physicists

    SciTech Connect

    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.

  14. 76 FR 13926 - Airworthiness Directives; The Boeing Company Model DC-8-11, DC-8-12, DC-8-21, DC-8-31, DC-8-32...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-15

    ... Model DC-8-11, DC-8- 12, DC-8-21, DC-8-31, DC-8-32, DC-8-33, DC-8-41, DC-8-42, and DC-8-43 Airplanes; DC-8-50 Series Airplanes; DC-8F-54 and DC-8F-55 Airplanes; DC-8-60 Series Airplanes; DC-8-60F Series Airplanes; DC-8-70 Series Airplanes; and DC-8-70F Series Airplanes AGENCY:......

  15. 75 FR 61989 - Airworthiness Directives; McDonnell Douglas Corporation Model DC-8-31, DC-8-32, DC-8-33, DC-8-41...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-07

    ... Corporation Model DC- 8-31, DC-8-32, DC-8-33, DC-8-41, DC-8-42, and DC-8-43 Airplanes; Model DC-8-50 Series Airplanes; Model DC-8F-54 and DC-8F-55 Airplanes; Model DC-8-60 Series Airplanes; Model DC-8-60F Series Airplanes; Model DC-8- 70 Series Airplanes; and Model DC-8-70F Series Airplanes AGENCY:......

  16. Libby South Fire, Washington

    NASA Technical Reports Server (NTRS)

    2002-01-01

    On July 9, 2001, a fire burned about 15 miles south of Twisp, Washington, that officials believe was caused by human error. NASA's Moderate-resolution Imaging Spectroradiometer on the Terra satellite observed the fire, indicated with a red dot in this image, on July 10, after the fire had already consumed about 1,240 acres. On July 10, another fire-called the Thirty Mile Fire-trapped 21 firefighters and 2 civilians in a narrow canyon in the Chewuch River Valley, north of Winthrop, WA. (That fire did not erupt until later in the day after this image was acquired and is therefore not visible.) Tragically, four firefighters were killed and six people were injured, including the two civilians. Rolling debris, rugged and steep terrain, and limited access are impeding efforts to contain the now 8,200-acre fire, which according to current fire incident reports, is completely uncontained. Nearly all the areas in the full-size image, including Washington (center), Idaho (right), Oregon (bottom) are in a state of severe drought, which means the region could be in for another devastating fire season. Another fire is visible in Idaho in the full-size image just east of where Idaho borders with Washington and Oregon. Image courtesy Jacques Descloitres, MODIS Land Rapid Response Team

  17. Description and Status of the DC Lightning Mapping Array

    NASA Technical Reports Server (NTRS)

    Blakeslee, Richard; Rudlosky, Scott D.; Bailey, Jeffrey C.; Hall, John M.; Goodman, Steven J.; Zubrick, Steven; Krehbiel, Paul

    2011-01-01

    The DC Lightning Mapping Array (DC LMA) centered on the Washington, DC metro region has been in operation since 2006. During that time the DC LMA has provided real time data to regional National Weather Service (NSF) Sterling, VA forecast office for operations support and the NOAA Meteorological Development Laboratory (MDL) for new product development and assessment. Data from this network (as well as other from other LMA systems) are now being used to create proxy Geostationary Lightning Mapper (GLM) data sets for GOES-R risk reduction and algorithm development activities. In addition, since spring 2009 data are provided to the Storm Prediction Center in support of Hazardous Weather Testbed and GOES-R Proving Ground activities during the Spring Program. Description, status and plans will be discussed.

  18. DC-to-DC switching converter

    NASA Technical Reports Server (NTRS)

    Cuk, Slobodan M. (Inventor); Middlebrook, Robert D. (Inventor)

    1980-01-01

    A dc-to-dc converter having nonpulsating input and output current uses two inductances, one in series with the input source, the other in series with the output load. An electrical energy transferring device with storage, namely storage capacitance, is used with suitable switching means between the inductances to DC level conversion. For isolation between the source and load, the capacitance may be divided into two capacitors coupled by a transformer, and for reducing ripple, the inductances may be coupled. With proper design of the coupling between the inductances, the current ripple can be reduced to zero at either the input or the output, or the reduction achievable in that way may be divided between the input and output.

  19. More than 6,500 Buildings Face Off in EPAs Sixth Annual Energy Star Battle of the Buildings Competition/U.S. commercial buildings in all 50 states and Washington, D.C. race to save energy, water and reduce greenhouse gas emissions

    EPA Pesticide Factsheets

    WASHINGTON - Today, the U.S. Environmental Protection Agency (EPA) launched the 2015 Energy Star Battle of the Buildings. Nationwide, more than 6,500 buildings and 125 teams are competing to reduce their energy and water use. In support of President

  20. Indian Education, 1969. Part 1, Hearings Before the Subcommittee on Indian Education of the Committee on Labor and Public Welfare, U.S. Senate, 91st Congress, 1st Session on Policy, Organization, Administration, and New Legislation Concerning the American Indians (Washington, D.C., Feb. 18,19,24, and Mar. 27, 1969; Fairbanks, Alaska, Apr 11, 1969).

    ERIC Educational Resources Information Center

    Congress of the U.S., Washington, DC. Senate Committee on Labor and Public Welfare.

    Part 1, Hearings before the Subcommittee on Indian Education (Committee on Labor and Public Welfare, U.S. Senate) on policy, organization, administration, and new legislation concerning American Indians, focuses especially on the problems of Alaskan Indians and Eskimos. The February, March, and April (1969) hearings were held in both Washington,…

  1. Multilevel DC link inverter

    DOEpatents

    Su, Gui-Jia

    2003-06-10

    A multilevel DC link inverter and method for improving torque response and current regulation in permanent magnet motors and switched reluctance motors having a low inductance includes a plurality of voltage controlled cells connected in series for applying a resulting dc voltage comprised of one or more incremental dc voltages. The cells are provided with switches for increasing the resulting applied dc voltage as speed and back EMF increase, while limiting the voltage that is applied to the commutation switches to perform PWM or dc voltage stepping functions, so as to limit current ripple in the stator windings below an acceptable level, typically 5%. Several embodiments are disclosed including inverters using IGBT's, inverters using thyristors. All of the inverters are operable in both motoring and regenerating modes.

  2. Washington v. Glucksberg.

    PubMed

    1997-06-26

    The U.S. Supreme Court upheld Washington's ban against assisted suicide "as applied to competent, terminally ill adults who wish to hasten their deaths by obtaining medication prescribed by their doctors." The Court refused to expand the liberty interest under the Due Process Clause of the U.S. constitution to include a right to commit suicide under it, a right to assisted suicide. The state has prevailing interests in the preservation of human life, the prevention of suicide, the integrity of the medical profession, the protection of vulnerable groups, and avoidance of a slippery slope into euthanasia.

  3. MOUNT WASHINGTON WILDERNESS, OREGON.

    USGS Publications Warehouse

    Taylor, Edward M.; Causey, J. Douglas

    1984-01-01

    On the basis of a mineral survey, Mount Washington Wilderness, Oregon has little promise for the occurrence of metallic mineral or fossil fuel resources. Abundant cinder resources occur in the wilderness, but other large volume cinder deposits are available outside the wilderness and closer to markets. Analysis of the geothermal potential of the High Cascades province cannot be made without data on the subsurface thermal and hydrologic regimes which can only be provided by deep drill holes. Several deep holes could be drilled in areas outside the wildernesses of the High Cascades, from which extrapolations of the geothermal potential of the wildernesses could be made.

  4. Reforms in Washington: The Model School Division, 1963-1972. Final Report.

    ERIC Educational Resources Information Center

    Cuban, Larry

    This study traces the origin and development of the Cardozo Model School Division, an area of Washington, D.C. having 17,000 poor children. Why did this particular reform shift in aims and alter shape between 1963 and 1972? Three factors played a major role in determining the direction reforms took. First, the particular reform perceptions of…

  5. 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

    ..., Washington, DC, and Logan Museum of Anthropology, Beloit College, Beloit, WI AGENCY: National Park Service... Museum of Anthropology, Beloit College, have completed an inventory of human remains, in consultation... Museum of Anthropology, Beloit College, Beloit, WI. The human remains were removed from an...

  6. 75 FR 31663 - Sweet Cherries Grown in Designated Counties in Washington; Change in the Handling Regulation

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-04

    ... request information on complying with this regulation by contacting Antoinette Carter, Marketing Order..., Washington, DC 20250-0237; Telephone: (202) 720-2491, Fax: (202) 720-8938, or E-mail: AntoinetteCarter@ams...Guide . Any questions about the compliance guide should be sent to Antoinette Carter at the...

  7. 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...

  8. Radiation-Tolerant DC-DC Converters

    NASA Technical Reports Server (NTRS)

    Skutt, Glenn; Sable, Dan; Leslie, Leonard; Graham, Shawn

    2012-01-01

    A document discusses power converters suitable for space use that meet the DSCC MIL-PRF-38534 Appendix G radiation hardness level P classification. A method for qualifying commercially produced electronic parts for DC-DC converters per the Defense Supply Center Columbus (DSCC) radiation hardened assurance requirements was developed. Development and compliance testing of standard hybrid converters suitable for space use were completed for missions with total dose radiation requirements of up to 30 kRad. This innovation provides the same overall performance as standard hybrid converters, but includes assurance of radiation- tolerant design through components and design compliance testing. This availability of design-certified radiation-tolerant converters can significantly reduce total cost and delivery time for power converters for space applications that fit the appropriate DSCC classification (30 kRad).

  9. Early Learning in Washington State

    ERIC Educational Resources Information Center

    Bill & Melinda Gates Foundation, 2011

    2011-01-01

    About 80,000 children enter kindergarten in Washington each year, and many lack basic language and behavioral skills--such as knowing letters and colors, following directions, getting along with others, and exhibiting impulse-control. In 2006, based on the recommendation of the Washington Learns Commission, Governor Christine Gregoire created the…

  10. 75 FR 6160 - Airworthiness Directives; McDonnell Douglas Corporation Model DC-10-10, DC-10-10F, DC-10-15, DC...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-08

    ... Douglas Corporation Model DC- 10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10... airworthiness directive (AD) for certain Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC- 10A and... would require a one-time installation of electrical bonding jumpers for the fill valve controllers...

  11. Forback DC-to-DC converter

    NASA Technical Reports Server (NTRS)

    Lukemire, Alan T. (Inventor)

    1993-01-01

    A pulse-width modulated DC-to-DC power converter including a first inductor, i.e. a transformer or an equivalent fixed inductor equal to the inductance of the secondary winding of the transformer, coupled across a source of DC input voltage via a transistor switch which is rendered alternately conductive (ON) and nonconductive (OFF) in accordance with a signal from a feedback control circuit is described. A first capacitor capacitively couples one side of the first inductor to a second inductor which is connected to a second capacitor which is coupled to the other side of the first inductor. A circuit load shunts the second capacitor. A semiconductor diode is additionally coupled from a common circuit connection between the first capacitor and the second inductor to the other side of the first inductor. A current sense transformer generating a current feedback signal for the switch control circuit is directly coupled in series with the other side of the first inductor so that the first capacitor, the second inductor and the current sense transformer are connected in series through the first inductor. The inductance values of the first and second inductors, moreover, are made identical. Such a converter topology results in a simultaneous voltsecond balance in the first inductance and ampere-second balance in the current sense transformer.

  12. Forback DC-to-DC converter

    NASA Technical Reports Server (NTRS)

    Lukemire, Alan T. (Inventor)

    1995-01-01

    A pulse-width modulated DC-to-DC power converter including a first inductor, i.e. a transformer or an equivalent fixed inductor equal to the inductance of the secondary winding of the transformer, coupled across a source of DC input voltage via a transistor switch which is rendered alternately conductive (ON) and nonconductive (OFF) in accordance with a signal from a feedback control circuit is described. A first capacitor capacitively couples one side of the first inductor to a second inductor which is connected to a second capacitor which is coupled to the other side of the first inductor. A circuit load shunts the second capacitor. A semiconductor diode is additionally coupled from a common circuit connection between the first capacitor and the second inductor to the other side of the first inductor. A current sense transformer generating a current feedback signal for the switch control circuit is directly coupled in series with the other side of the first inductor so that the first capacitor, the second inductor and the current sense transformer are connected in series through the first inductor. The inductance values of the first and second inductors, moreover, are made identical. Such a converter topology results in a simultaneous voltsecond balance in the first inductance and ampere-second balance in the current sense transformer.

  13. USGS Water Data for Washington

    USGS Publications Warehouse

    ,

    2009-01-01

    The U.S. Geological Survey (USGS) has been investigating the water resources of Washington State since the latter part of the 19th century. During this time, demand for water has evolved from primarily domestic and stock needs to the current complex requirements for public-water supplies, irrigation, power generation, navigation, ecological needs, and numerous other uses. Water-resource data collected by the USGS in Washington have been, or soon will be, published by the USGS Washington Water Science Center (WAWSC) in numerous data and interpretive reports. Most of these reports are available online at the WAWSC web page http://wa.water.usgs.gov/pubs/

  14. RISK D/C

    NASA Technical Reports Server (NTRS)

    Dias, W. C.

    1994-01-01

    RISK D/C is a prototype program which attempts to do program risk modeling for the Space Exploration Initiative (SEI) architectures proposed in the Synthesis Group Report. Risk assessment is made with respect to risk events, their probabilities, and the severities of potential results. The program allows risk mitigation strategies to be proposed for an exploration program architecture and to be ranked with respect to their effectiveness. RISK D/C allows for the fact that risk assessment in early planning phases is subjective. Although specific to the SEI in its present form, RISK D/C can be used as a framework for developing a risk assessment program for other specific uses. RISK D/C is organized into files, or stacks, of information, including the architecture, the hazard, and the risk event stacks. Although predefined, all stacks can be upgraded by a user. The architecture stack contains information concerning the general program alternatives, which are subsequently broken down into waypoints, missions, and mission phases. The hazard stack includes any background condition which could result in a risk event. A risk event is anything unfavorable that could happen during the course of a specific point within an architecture, and the risk event stack provides the probabilities, consequences, severities, and any mitigation strategies which could be used to reduce the risk of the event, and how much the risk is reduced. RISK D/C was developed for Macintosh series computers. It requires HyperCard 2.0 or later, as well as 2Mb of RAM and System 6.0.8 or later. A Macintosh II series computer is recommended due to speed concerns. The standard distribution medium for this package is one 3.5 inch 800K Macintosh format diskette. RISK D/C was developed in 1991 and is a copyrighted work with all copyright vested in NASA. Macintosh and HyperCard are trademarks of Apple Computer, Inc.

  15. 75 FR 23571 - Airworthiness Directives; McDonnell Douglas Corporation Model DC-10-10, DC-10-10F, DC-10-15, DC...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-05-04

    ... Corporation Model DC- 10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40, DC-10-40F.... ACTION: Final rule. SUMMARY: We are adopting a new airworthiness directive (AD) for certain Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC-10-30F (KC-10A and KDC-10), DC-10-40,......

  16. DC Breakdown Experiments

    SciTech Connect

    Calatroni, S.; Descoeudres, A.; Levinsen, Y.; Taborelli, M.; Wuensch, W.

    2009-01-22

    In the context of the CLIC (Compact Linear Collider) project investigations of DC breakdown in ultra high vacuum are carried out in parallel with high power RF tests. From the point of view of saturation breakdown field the best material tested so far is stainless steel, followed by titanium. Copper shows a four times weaker breakdown field than stainless steel. The results indicate clearly that the breakdown events are initiated by field emission current and that the breakdown field is limited by the cathode. In analogy to RF, the breakdown probability has been measured in DC and the data show similar behaviour as a function of electric field.

  17. DC attenuation meter

    DOEpatents

    Hargrove, Douglas L.

    2004-09-14

    A portable, hand-held meter used to measure direct current (DC) attenuation in low impedance electrical signal cables and signal attenuators. A DC voltage is applied to the signal input of the cable and feedback to the control circuit through the signal cable and attenuators. The control circuit adjusts the applied voltage to the cable until the feedback voltage equals the reference voltage. The "units" of applied voltage required at the cable input is the system attenuation value of the cable and attenuators, which makes this meter unique. The meter may be used to calibrate data signal cables, attenuators, and cable-attenuator assemblies.

  18. D.C. Government. Noneducation Factors Hindered Criminal Justice Initiative. Report to Congressional Requesters.

    ERIC Educational Resources Information Center

    General Accounting Office, Washington, DC. General Government Div.

    The Criminal Justice Initiative (CJI) was conducted in Washington, D.C. from fiscal year 1984 through fiscal year 1986 to relieve overcrowded prison conditions by reducing the recidivism rate. Objectives of the project included hiring additional prison staff to provide security and increase prisoner processing, expanding the education program, and…

  19. DYLOS DC110

    EPA Science Inventory

    The Dylos DC1100 air quality monitor measures particulate matter (PM) to provide a continuous assessment of indoor air quality. The unit counts particles in two size ranges: large and small. According to the manufacturer, large particles have diameters between 2.5 and 10 micromet...

  20. DC arc weld starter

    DOEpatents

    Campiotti, Richard H.; Hopwood, James E.

    1990-01-01

    A system for starting an arc for welding uses three DC power supplies, a high voltage supply for initiating the arc, an intermediate voltage supply for sustaining the arc, and a low voltage welding supply directly connected across the gap after the high voltage supply is disconnected.

  1. 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.

  2. AC/DC converter

    NASA Astrophysics Data System (ADS)

    Jain, Praveen K.

    1992-08-01

    In a system such as a 20 kHz space station primary electrical power distribution system, power conversion from AC to DC is required. Some of the basic requirements for this conversion are high efficiency, light weight and small volume, regulated output voltage, close to unity input power factor, distortionless input current, soft-starting, low electromagnetic interference, and high reliability. An AC-to-DC converter is disclosed which satisfies the main design objectives of such converters for use in space. The converter of the invention comprises an input transformer, a resonant network, a current controller, a diode rectifier, and an output filter. The input transformer is for connection to a single phase, high frequency, sinusoidal waveform AC voltage source and provides a matching voltage isolating from the AC source. The resonant network converts this voltage to a sinusoidal, high frequency bidirectional current output, which is received by the current controller to provide the desired output current. The diode rectifier is connected in parallel with the current controller to convert the bidirectional current into a unidirectional current output. The output filter is connected to the rectifier to provide an essentially ripple-free, substantially constant voltage DC output.

  3. 75 FR 47242 - Airworthiness Directives; McDonnell Douglas Corporation Model DC-9-14, DC-9-15, and DC-9-15F...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-05

    ... Corporation Model DC- 9-14, DC-9-15, and DC-9-15F Airplanes; and Model DC-9-20, DC-9-30, DC- 9-40, and DC-9-50... airworthiness directive (AD) that applies to certain Model DC-9-14 and DC-9-15 airplanes; and Model DC-9-20, DC-9-30, DC-9-40, and DC-9-50 series airplanes. The existing AD currently......

  4. Isolated Bidirectional DC-DC Converter for Hybrid Electric Vehicle Application

    DTIC Science & Technology

    2006-06-13

    34Approved for public release: distribution is unlimited" Isolated Bidirectional DC-DC Converter for Hybrid Electric Vehicle Applications Sonya...requirements for DC-DC converters for electric and hybrid vehicles . This paper introduces a bidirectional, isolated DC-DC converter for medium power...the design and build of a medium power DC-DC converter . Key words: Power Converter , DC-DC, Hybrid Electric Vehicle , Battery, Galvanically Isolation

  5. Libraries in Washington: MedlinePlus

    MedlinePlus

    ... this page: https://medlineplus.gov/libraries/washington.html Libraries in Washington To use the sharing features on ... enable JavaScript. Bellevue Overlake Hospital Medical Center Medical Library 1035 116th Avenue NE Bellevue, WA 98004 425- ...

  6. Washington State's Student Achievement Initiative

    ERIC Educational Resources Information Center

    Pettitt, Maureen; Prince, David

    2010-01-01

    This article describes Washington State's Student Achievement Initiative, an accountability system implemented in 2005-06 that measures students' gains in college readiness, college credits earned, and degree or certificate completion. The goal of the initiative is to increase educational attainment by focusing on the critical momentum points…

  7. Washington State 1995 Data Book.

    ERIC Educational Resources Information Center

    Washington State Office of Financial Management, Olympia.

    This document is intended to present, in tables and graphs, a diversity of information on Washington State, its people, economy, and government. The information was obtained from state and federal agencies and from private businesses. The data are organized into 11 major chapters which cover the following topics (sample subtopics in parentheses):…

  8. The 1963 March on Washington.

    ERIC Educational Resources Information Center

    Lloyd, Natalie; Schamel, Wynell; Potter, Lee Ann

    2001-01-01

    Provides historical information on the "March on Washington for Jobs and Freedom" and the role of A. Philip Randolph who originally conceived the idea for the March. Features a letter from A. Philip Randolph to President John F. Kennedy. Includes a list of teaching activities. (CMK)

  9. Teaching the March on Washington

    ERIC Educational Resources Information Center

    Jones, William P.; Euchner, Charles; Hill, Norman; Hill, Velma Murphy

    2013-01-01

    One of the most historical events in American history, the non-violent protest "March on Washington," August 28, 1963, is detailed in an article of remembrance by William P. Jones. His article is crowned by highlights from the "I Have a Dream" speech by Dr. Martin Luther King, Jr., but also highlights the lessor known role…

  10. Washington Promise Scholarship Program Evaluation.

    ERIC Educational Resources Information Center

    Washington State Higher Education Coordinating Board, Olympia.

    The Washington Promise Scholarship program was established to encourage excellent academic performance and to reward low- and middle-income students who demonstrate meritorious achievement in high school by providing them a 2-year scholarship. An evaluation was conducted to study the program and its impact on college attendance and student…

  11. Antidote: Civic Responsibility. Washington Law.

    ERIC Educational Resources Information Center

    Phi Alpha Delta Law Fraternity International, Washington, DC.

    Designed for middle school through high school students, this unit contains eight lesson plans that focus on Washington state law. The state lessons correspond to lessons in the volume, "Antidote: Civic Responsibility. Drug Avoidance Lessons for Middle School & High School Students." Developed to be presented by educators, law…

  12. 76 FR 21928 - Washington State University; Facility Operating License No. R-76; Washington State University...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-19

    ... COMMISSION Washington State University; Facility Operating License No. R-76; Washington State University... of a renewed Facility Operating License No. R- 76, to be held by Washington State University (WSU or the licensee), which would authorize continued operation of the Washington State University...

  13. Washington Tsunami Hazard Mitigation Program

    NASA Astrophysics Data System (ADS)

    Walsh, T. J.; Schelling, J.

    2012-12-01

    Washington State has participated in the National Tsunami Hazard Mitigation Program (NTHMP) since its inception in 1995. We have participated in the tsunami inundation hazard mapping, evacuation planning, education, and outreach efforts that generally characterize the NTHMP efforts. We have also investigated hazards of significant interest to the Pacific Northwest. The hazard from locally generated earthquakes on the Cascadia subduction zone, which threatens tsunami inundation in less than hour following a magnitude 9 earthquake, creates special problems for low-lying accretionary shoreforms in Washington, such as the spits of Long Beach and Ocean Shores, where high ground is not accessible within the limited time available for evacuation. To ameliorate this problem, we convened a panel of the Applied Technology Council to develop guidelines for construction of facilities for vertical evacuation from tsunamis, published as FEMA 646, now incorporated in the International Building Code as Appendix M. We followed this with a program called Project Safe Haven (http://www.facebook.com/ProjectSafeHaven) to site such facilities along the Washington coast in appropriate locations and appropriate designs to blend with the local communities, as chosen by the citizens. This has now been completed for the entire outer coast of Washington. In conjunction with this effort, we have evaluated the potential for earthquake-induced ground failures in and near tsunami hazard zones to help develop cost estimates for these structures and to establish appropriate tsunami evacuation routes and evacuation assembly areas that are likely to to be available after a major subduction zone earthquake. We intend to continue these geotechnical evaluations for all tsunami hazard zones in Washington.

  14. Auxiliary resonant DC tank converter

    DOEpatents

    Peng, Fang Z.

    2000-01-01

    An auxiliary resonant dc tank (ARDCT) converter is provided for achieving soft-switching in a power converter. An ARDCT circuit is coupled directly across a dc bus to the inverter to generate a resonant dc bus voltage, including upper and lower resonant capacitors connected in series as a resonant leg, first and second dc tank capacitors connected in series as a tank leg, and an auxiliary resonant circuit comprising a series combination of a resonant inductor and a pair of auxiliary switching devices. The ARDCT circuit further includes first clamping means for holding the resonant dc bus voltage to the dc tank voltage of the tank leg, and second clamping means for clamping the resonant dc bus voltage to zero during a resonant period. The ARDCT circuit resonantly brings the dc bus voltage to zero in order to provide a zero-voltage switching opportunity for the inverter, then quickly rebounds the dc bus voltage back to the dc tank voltage after the inverter changes state. The auxiliary switching devices are turned on and off under zero-current conditions. The ARDCT circuit only absorbs ripples of the inverter dc bus current, thus having less current stress. In addition, since the ARDCT circuit is coupled in parallel with the dc power supply and the inverter for merely assisting soft-switching of the inverter without participating in real dc power transmission and power conversion, malfunction and failure of the tank circuit will not affect the functional operation of the inverter; thus a highly reliable converter system is expected.

  15. DC Cable for Railway

    NASA Astrophysics Data System (ADS)

    Tomita, Masaru

    The development of a superconducting cable for railways has commenced, assuming that a DC transmission cable will be used for electric trains. The cable has been fabricated based on the results of current testing of a superconducting wire, and various evaluation tests have been performed to determine the characteristics of the cable. A superconducting transmission cable having zero electrical resistance and suitable for railway use is expected to enhance regeneration efficiency, reduce power losses, achieve load leveling and integration of sub-stations, and reduce rail potential.

  16. Analysis of self-oscillating dc-to-dc converters

    NASA Technical Reports Server (NTRS)

    Burger, P.

    1974-01-01

    The basic operational characteristics of dc-to-dc converters are analyzed along with the basic physical characteristics of power converters. A simple class of dc-to-dc power converters are chosen which could satisfy any set of operating requirements, and three different controlling methods in this class are described in detail. Necessary conditions for the stability of these converters are measured through analog computer simulation whose curves are related to other operational characteristics, such as ripple and regulation. Further research is suggested for the solution of absolute stability and efficient physical design of this class of power converters.

  17. Multiple high voltage output DC-to-DC power converter

    NASA Technical Reports Server (NTRS)

    Cronin, Donald L. (Inventor); Farber, Bertrand F. (Inventor); Gehm, Hartmut K. (Inventor); Goldin, Daniel S. (Inventor)

    1977-01-01

    Disclosed is a multiple output DC-to-DC converter. The DC input power is filtered and passed through a chopper preregulator. The chopper output is then passed through a current source inverter controlled by a squarewave generator. The resultant AC is passed through the primary winding of a transformer, with high voltages induced in a plurality of secondary windings. The high voltage secondary outputs are each solid-state rectified for passage to individual output loads. Multiple feedback loops control the operation of the chopper preregulator, one being responsive to the current through the primary winding and another responsive to the DC voltage level at a selected output.

  18. Lake Washington Ship Canal, Seattle, Washington. Master Plan (DM 9)

    DTIC Science & Technology

    1994-02-01

    published two plants of the purslane family: Talbnum okanoganense from the Okanogan Highlands of north-central Washington; and Caytwnia nia/Ls from the...paramount concern. Some of the fish passage concerns identified in the past include delay caused by varying salinities and attraction flows, loss of...fish ladder flow in the diffuser supply wells, adult fish fallback, and impacts to juvenile fish due to abrupt pressure and salinity changes. Ensuring

  19. Improved DC Gun Insulator

    SciTech Connect

    M.L. Neubauer, K.B. Beard, R. Sah, C. Hernandez-Garcia, G. Neil

    2009-05-01

    Many user facilities such as synchrotron light sources and free electron lasers require accelerating structures that support electric fields of 10-100 MV/m, especially at the start of the accelerator chain where ceramic insulators are used for very high gradient DC guns. These insulators are difficult to manufacture, require long commissioning times, and have poor reliability, in part because energetic electrons bury themselves in the ceramic, creating a buildup of charge and causing eventual puncture. A novel ceramic manufacturing process is proposed. It will incorporate bulk resistivity in the region where it is needed to bleed off accumulated charge caused by highly energetic electrons. This process will be optimized to provide an appropriate gradient in bulk resistivity from the vacuum side to the air side of the HV standoff ceramic cylinder. A computer model will be used to determine the optimum cylinder dimensions and required resistivity gradient for an example RF gun application. A ceramic material example with resistivity gradient appropriate for use as a DC gun insulator will be fabricated by glazing using doping compounds and tested.

  20. Tsunami Preparedness in Washington (video)

    USGS Publications Warehouse

    Loeffler, Kurt; Gesell, Justine

    2010-01-01

    Tsunamis are a constant threat to the coasts of our world. Although tsunamis are infrequent along the West coast of the United States, it is possible and necessary to prepare for potential tsunami hazards to minimize loss of life and property. Community awareness programs are important, as they strive to create an informed society by providing education and training. This video about tsunami preparedness in Washington distinguishes between a local tsunami and a distant event and focus on the specific needs of this region. It offers guidelines for correct tsunami response and community preparedness from local emergency managers, first-responders, and leading experts on tsunami hazards and warnings, who have been working on ways of making the tsunami affected regions safer for the people and communities on a long-term basis. This video was produced by the US Geological Survey (USGS) in cooperation with Washington Emergency Management Division (EMD) and with funding by the National Tsunami Hazard Mitigation Program.

  1. SCM Handbooks for dc-to-dc Converters

    NASA Technical Reports Server (NTRS)

    Lee, F.; Mohmoud, M.; Yu, Y.

    1984-01-01

    Two documents aid in design of control modules for dc-to-dc converters. Features of SCM include: Adaptive stability, power component stress limiting, implementation of various control laws, unified design approach. Analysis and quidelines contained in handbooks enable engineer to design SCM circuit and confidently predict resulting overall performance.

  2. Efficient Design in a DC to DC Converter Unit

    NASA Technical Reports Server (NTRS)

    Bruemmer, Joel E.; Williams, Fitch R.; Schmitz, Gregory V.

    2002-01-01

    Space Flight hardware requires high power conversion efficiencies due to limited power availability and weight penalties of cooling systems. The International Space Station (ISS) Electric Power System (EPS) DC-DC Converter Unit (DDCU) power converter is no exception. This paper explores the design methods and tradeoffs that were utilized to accomplish high efficiency in the DDCU. An isolating DC to DC converter was selected for the ISS power system because of requirements for separate primary and secondary grounds and for a well-regulated secondary output voltage derived from a widely varying input voltage. A flyback-current-fed push-pull topology or improved Weinberg circuit was chosen for this converter because of its potential for high efficiency and reliability. To enhance efficiency, a non-dissipative snubber circuit for the very-low-Rds-on Field Effect Transistors (FETs) was utilized, redistributing the energy that could be wasted during the switching cycle of the power FETs. A unique, low-impedance connection system was utilized to improve contact resistance over a bolted connection. For improved consistency in performance and to lower internal wiring inductance and losses a planar bus system is employed. All of these choices contributed to the design of a 6.25 KW regulated dc to dc converter that is 95 percent efficient. The methodology used in the design of this DC to DC Converter Unit may be directly applicable to other systems that require a conservative approach to efficient power conversion and distribution.

  3. Dc-To-Dc Converter Uses Reverse Conduction Of MOSFET's

    NASA Technical Reports Server (NTRS)

    Gruber, Robert P.; Gott, Robert W.

    1991-01-01

    In modified high-power, phase-controlled, full-bridge, pulse-width-modulated dc-to-dc converters, switching devices power metal oxide/semiconductor field-effect transistors (MOSFET's). Decreases dissipation of power during switching by eliminating approximately 0.7-V forward voltage drop in anti-parallel diodes. Energy-conversion efficiency increased.

  4. First experimental results from DC/DC and AC/DC plasma-based power transformers

    NASA Astrophysics Data System (ADS)

    McEvoy, Aaron; Gibson, William; Nebel, Richard

    2016-10-01

    A plasma-based power transformer has been built and operated in both DC/DC and AC/DC mode. The proprietary Tibbar Plasma Technologies, Inc. transformer design consists of two cylindrically symmetric helical primary electrodes surrounding a low temperature plasma within which a secondary axial current is generated. Initial experimental results have compared well with simulations and moderate conversion efficiencies have been observed. A new proprietary device is currently being constructed that will utilize 3-phase 480 VAC input to achieve higher conversion efficiency and output power. A description of the apparatus and several potential applications will be presented along with preliminary experimental data demonstrating the DC/DC and AC/DC conversion processes. Work performed under ARPA-E contract DE-AR0000677.

  5. An Evaluation of the Effect of DC's Voucher Program on Public School Achievement and Racial Integration after One Year

    ERIC Educational Resources Information Center

    Greene, Jay P.; Winters, Marcus A.

    2007-01-01

    This study evaluates the initial effect of Washington, DC's Opportunity Scholarship Program (OSP) on the academic performance of public schools and its effects on the opportunities that District students have to attend integrated schools. The OSP is a federally sponsored school voucher program that provides vouchers worth up to $7,500 for an…

  6. Early Oscillation Detection Technique for Hybrid DC/DC Converters

    NASA Technical Reports Server (NTRS)

    Wang, Bright L.

    2011-01-01

    Oscillation or instability is a situation that must be avoided for reliable hybrid DC/DC converters. A real-time electronics measurement technique was developed to detect catastrophic oscillations at early stages for hybrid DC/DC converters. It is capable of identifying low-level oscillation and determining the degree of the oscillation at a unique frequency for every individual model of the converters without disturbing their normal operations. This technique is specially developed for space-used hybrid DC/DC converters, but it is also suitable for most of commercial and military switching-mode power supplies. This is a weak-electronic-signal detection technique to detect hybrid DC/DC converter oscillation presented as a specific noise signal at power input pins. It is based on principles of feedback control loop oscillation and RF signal modulations, and is realized by using signal power spectral analysis. On the power spectrum, a channel power amplitude at characteristic frequency (CPcf) and a channel power amplitude at switching frequency (CPsw) are chosen as oscillation level indicators. If the converter is stable, the CPcf is a very small pulse and the CPsw is a larger, clear, single pulse. At early stage of oscillation, the CPcf increases to a certain level and the CPsw shows a small pair of sideband pulses around it. If the converter oscillates, the CPcf reaches to a higher level and the CPsw shows more high-level sideband pulses. A comprehensive stability index (CSI) is adopted as a quantitative measure to accurately assign a degree of stability to a specific DC/DC converter. The CSI is a ratio of normal and abnormal power spectral density, and can be calculated using specified and measured CPcf and CPsw data. The novel and unique feature of this technique is the use of power channel amplitudes at characteristic frequency and switching frequency to evaluate stability and identify oscillations at an early stage without interfering with a DC/DC converter s

  7. The Earth's Rotation - the Washington Connection

    NASA Astrophysics Data System (ADS)

    McCarthy, D. D.

    2002-05-01

    Scientific agencies in the Washing ton DC area have been involved in studies related to the rotation of the Earth for over a century. The story begins with attempts by astronomers at the U.S. Naval Observatory to identify the motion of the Earth's rotational pole in their observations and Simon Newcomb's subsequent explanation in 1891 of the period of the Chandler motion by the Earth's elasticity. The U. S. Coast and Geodetic Survey established an observing site in Gaithersburg, Maryland, now a Washington suburb, that contributed observations from 1899 until 1984. The U. S. Naval Observatory established an observational program in 1915 using the photographic zenith tube originally installed at Gaithersburg to monitor polar motion. This instrument was modified in 1934 to provide astronomical time measurements. Work on the description of the Earth's magnetic field published by the Carnegie Institute was used in the 1950's to relate decadal variations in the Earth's rotation speed with motion of the Earth's core. The National Oceanic and Atmospheric Administration and the National Aeronautics and Space Administration in the 1980's pioneered in the application of space techniques including Very Long Baseline Interferometry, Satellite Laser Ranging and Lunar Laser Ranging. The U. S. Naval Observatory joined them in the formation of the National Earth Orientation Service soon after, and these three agencies continue to make important contributions to the knowledge of the Earth's rotation. All of these efforts have led to significant contributions to our understanding of plate motions, the internal structure of the Earth and the relationship between the atmosphere and the solid Earth.

  8. A DC Transformer

    NASA Technical Reports Server (NTRS)

    Youngquist, Robert C.; Ihlefeld, Curtis M.; Starr, Stanley O.

    2013-01-01

    A component level dc transformer is described in which no alternating currents or voltages are present. It operates by combining features of a homopolar motor and a homopolar generator, both de devices, such that the output voltage of a de power supply can be stepped up (or down) with a corresponding step down (or up) in current. The basic theory for this device is developed, performance predictions are made, and the results from a small prototype are presented. Based on demonstrated technology in the literature, this de transformer should be scalable to low megawatt levels, but it is more suited to high current than high voltage applications. Significant development would be required before it could achieve the kilovolt levels needed for de power transmission.

  9. SMALL-SCALE MELTER TESTING WITH LAW SIMULANTS TO ASSESS THE IMPACT OF HIGHER TEMPERATURE MELTER OPERATIONS - Final Report, VSL-04R49801-1, Rev. 0, 2/13/03, Vitreous State Laboratory, The Catholic University of America, Washington, D.C.

    SciTech Connect

    KRUGER AA; MATLACK KS

    2012-02-07

    About 50 million gallons of high-level mixed waste is currently in storage in underground tanks at The United States Department of Energy's (DOE's) Hanford site in the State of Washington. The Hanford Tank Waste Treatment and Immobilization Plant (WTP) will provide DOE's Office of River Protection (ORP) with a means of treating this waste by vitrification for subsequent disposal. The tank waste will be separated into low- and high-activity fractions, which will then be vitrified respectively into Immobilized Low Activity Waste (ILAW) and Immobilized High Level Waste (IHLW) products. The ILAW product will be disposed of in an engineered facility on the Hanford site while the IHL W product will be directed to the national deep geological disposal facility for high-level nuclear waste. The ILAW and IHLW products must meet a variety of requirements with respect to protection of the environment before they can be accepted for disposal. The Office of River Protection is currently examining options to optimize the Low Activity Waste (LAW) facility and the LAW glass waste form. One option under evaluation is to enhance the waste processing rate of the vitrification plant currently under construction. It is likely that the capacity of the LAW vitrification plant can be increased incrementally by implementation of a variety of low-risk, high-probability changes, either separately or in combination. These changes include: (1) Operating at the higher processing rates demonstrated at the LAW Pilot Melter; (2) Increasing the glass pool surface area within the existing external melter envelope; (3) Increasing plant availability; (4) Increasing the glass waste loading; (5) Removing sulfate from the LAW stream; (6) Operating the melter at slightly higher temperature; (7) Installing the third LAW melter into the WTP plant; and (8) Other smaller impact changes. The tests describes in this report utilized blended feed (glass formers plus waste simulant) prepared by Optima Chemicals

  10. Triple voltage dc-to-dc converter and method

    DOEpatents

    Su, Gui-Jia

    2008-08-05

    A circuit and method of providing three dc voltage buses and transforming power between a low voltage dc converter and a high voltage dc converter, by coupling a primary dc power circuit and a secondary dc power circuit through an isolation transformer; providing the gating signals to power semiconductor switches in the primary and secondary circuits to control power flow between the primary and secondary circuits and by controlling a phase shift between the primary voltage and the secondary voltage. The primary dc power circuit and the secondary dc power circuit each further comprising at least two tank capacitances arranged in series as a tank leg, at least two resonant switching devices arranged in series with each other and arranged in parallel with the tank leg, and at least one voltage source arranged in parallel with the tank leg and the resonant switching devices, said resonant switching devices including power semiconductor switches that are operated by gating signals. Additional embodiments having a center-tapped battery on the low voltage side and a plurality of modules on both the low voltage side and the high voltage side are also disclosed for the purpose of reducing ripple current and for reducing the size of the components.

  11. Bi-Directional DC-DC Converter for PHEV Applications

    SciTech Connect

    Abas Goodarzi

    2011-01-31

    Plug-In Hybrid Electric Vehicles (PHEV) require high power density energy storage system (ESS) for hybrid operation and high energy density ESS for Electric Vehicle (EV) mode range. However, ESS technologies to maximize power density and energy density simultaneously are not commercially feasible. The use of bi-directional DC-DC converter allows use of multiple energy storage, and the flexible DC-link voltages can enhance the system efficiency and reduce component sizing. This will improve fuel consumption, increase the EV mode range, reduce the total weight, reduce battery initial and life cycle cost, and provide flexibility in system design.

  12. 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

  13. Piezometer completion report for borehold cluster sites DC-19, DC-20 and DC-22

    SciTech Connect

    Jackson, R.L.; Diediker, L.D.; Ledgerwood, R.K.; Veatch, M.D.

    1984-07-01

    This report describes the design and installation of multi-level piezometers at borehole cluster sites DC-19, DC-20 and DC-22. The network of borehole cluster sites will provide facilities for multi-level water-level monitoring across the RRL for piezometer baseline monitoring and for large-scale hydraulic stress testing. These groundwater-monitoring facilities were installed between August 1983 and March 1984. Three series of piezometer nests (A-, C- and D-series) were installed in nine hydrogeologic units (monitoring horizons) within the Columbia River Basalt Group at each borehole cluster site. In addition to the piezometer facilities, a B-series pumping well was installed at borehole cluster sites DC-20 and DC-22. The A-series piezometer nest monitors the basal Ringold sediments and the Rattlesnake Ridge interbed. The C-series piezometer nests monitors the six deepest horizons, which are in increasing depth, the Priest Rapids interflow. 21 refs., 6 figs., 14 tabs.

  14. 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.

  15. Booker T. Washington and George Washington Carver: A Tandem of Adult Educators at Tuskegee.

    ERIC Educational Resources Information Center

    McGee, Leo

    1984-01-01

    Shows how Booker T. Washington and George Washington Carver espoused adult education principles through their efforts to eradicate illiteracy, teach practical knowledge to Black farmers and poor Blacks, and instill the value of education in Black adults. (SK)

  16. Contributors to Adult Education: Booker T. Washington, George Washington Carver, Alain L. Locke, and Ambrose Caliver.

    ERIC Educational Resources Information Center

    Gyant, LaVerne

    1988-01-01

    Outlines the lives and the contributions to adult education made by the following African American educators: (1) Booker T. Washington; (2) George Washington Carver; (3) Alain L. Locke; and (4) Ambrose Caliver. (BJV)

  17. Bacterial Meningitis in Washington State

    PubMed Central

    Ostroy, Paul R.

    1979-01-01

    During 1977 the state of Washington maintained a surveillance system for reporting cases of bacterial meningitis. Hemophilus influenzae meningitis was the most common etiologic agent causing bacterial meningitis. A high incidence rate for H. influenzae meningitis was found among American Indians less than five years ago. A focus of ampicillin-resistant H. influenzae meningitis was found in Pierce County among military dependents or persons who had family members or relatives working or attending school with Fort Lewis Army Base personnel. Although relationships between the individual cases were not detected, the surveillance system continues to seek some association. PMID:506227

  18. GLACIER PEAK ROADLESS AREA, WASHINGTON.

    USGS Publications Warehouse

    Church, S.E.; Johnson, F.L.

    1984-01-01

    A mineral survey outlined areas of mineral-resource potential in the Glacier Peak Roadless Area, Washington. Substantiated resource potential for base and precious metals has been identified in four mining districts included in whole or in part within the boundary of the roadless area. Several million tons of demonstrated base- and precious-metal resources occur in numerous mines in these districts. Probable resource potential for precious metals exists along a belt of fractured and locally mineralized rock extending northeast from Monte Cristo to the northeast edge of the roadless area.

  19. Bacterial meningitis in Washington state.

    PubMed

    Ostroy, P R

    1979-10-01

    During 1977 the state of Washington maintained a surveillance system for reporting cases of bacterial meningitis. Hemophilus influenzae meningitis was the most common etiologic agent causing bacterial meningitis. A high incidence rate for H. influenzae meningitis was found among American Indians less than five years ago. A focus of ampicillin-resistant H. influenzae meningitis was found in Pierce County among military dependents or persons who had family members or relatives working or attending school with Fort Lewis Army Base personnel. Although relationships between the individual cases were not detected, the surveillance system continues to seek some association.

  20. Washington: a guide to geothermal energy development

    SciTech Connect

    Bloomquist, R.G.; Basescu, N.; Higbee, C.; Justus, D.; Simpson, S.

    1980-06-01

    Washington's geothermal potential is discussed. The following topics are covered: exploration, drilling, utilization, legal and institutional setting, and economic factors of direct use projects. (MHR)

  1. DC-Compensated Current Transformer.

    PubMed

    Ripka, Pavel; Draxler, Karel; Styblíková, Renata

    2016-01-20

    Instrument current transformers (CTs) measure AC currents. The DC component in the measured current can saturate the transformer and cause gross error. We use fluxgate detection and digital feedback compensation of the DC flux to suppress the overall error to 0.15%. This concept can be used not only for high-end CTs with a nanocrystalline core, but it also works for low-cost CTs with FeSi cores. The method described here allows simultaneous measurements of the DC current component.

  2. 30 CFR 947.700 - Washington Federal program.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Forest Practices Act, RCW 76.09. (5) Washington Water Code, RCW 90.03. (6) Washington Water Pollution Control Act, RCW 90.48. (7) Washington Minimum Water Flows and Levels Act, RCW 90.22. (8) Washington... notice to that effect in the Federal Register. (1) The Washington Surface Mining Act of 1971,...

  3. Digital Control Technologies for Modular DC-DC Converters

    NASA Technical Reports Server (NTRS)

    Button, Robert M.; Kascak, Peter E.; Lebron-Velilla, Ramon

    2002-01-01

    Recent trends in aerospace Power Management and Distribution (PMAD) systems focus on using commercial off-the-shelf (COTS) components as standard building blocks. This move to more modular designs has been driven by a desire to reduce costs and development times, but is also due to the impressive power density and efficiency numbers achieved by today's commercial DC-DC converters. However, the PMAD designer quickly learns of the hidden "costs" of using COTS converters. The most significant cost is the required addition of external input filters to meet strict electromagnetic interference (MIAMI) requirements for space systems. In fact, the high power density numbers achieved by the commercial manufacturers are greatly due to the lack of necessary input filters included in the COTS module. The NASA Glenn Research Center is currently pursuing a digital control technology that addresses this problem with modular DC-DC converters. This paper presents the digital control technologies that have been developed to greatly reduce the input filter requirements for paralleled, modular DC-DC converters. Initial test result show that the input filter's inductor size was reduced by 75 percent, and the capacitor size was reduced by 94 percent while maintaining the same power quality specifications.

  4. Fwd: It's All About the Kids: A Glib Phrase becomes a Driving Force for Change in Inner-City Washington. Volume: 2, Number: 2 Arresting Insights in Education

    ERIC Educational Resources Information Center

    Davis, Martin A., Jr.

    2005-01-01

    "Miracle" is a word you would expect to hear from people familiar with the Assumption Catholic School story--but don?t wait for it. More likely you will hear a name: Mary Anne Stanton. In just more than five years, Stanton has led Assumption and 12 other Catholic schools from high-poverty Washington, D.C. neighborhoods into a…

  5. From Best Research to What Works: Improving the Teaching and Learning of Mathematics: A Forum (Washington, D. C., May 5, 2005)

    ERIC Educational Resources Information Center

    Albert Shanker Institute, 2005

    2005-01-01

    This publication is a transcription of a forum held in Washington, D.C. on May 5, 2005 on K-6 math proficiency. James Hiebert, professor of education at the University of Delware, and Deborah Loewengerg Ball, collegiate professor of mathematics education and teacher education and director of teacher education at the University of Michigan, spoke…

  6. Achieving Small School Success in Washington State

    ERIC Educational Resources Information Center

    Boyle, Martin

    2003-01-01

    Of Washington State's 296 school districts, two-thirds have 2,000 or fewer students. These small school districts provide unique learning opportunities for Washington's children, but also present special challenges to achieving the higher standards called for in the state education reform bill and recent federal legislation. This report provides…

  7. 77 FR 15179 - Disaster Declaration for Washington

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-03-14

    ... Counties: Clallam, Grays Harbor, King, Klickitat, Lewis, Mason, Pierce, Skamania, Snohomish, Thurston... ADMINISTRATION [Disaster Declaration 13027 and 13028; Washington Disaster WA-00036] Disaster Declaration for Washington AGENCY: U.S. Small Business Administration. ] ACTION: Notice. SUMMARY: This is a Notice of...

  8. 40 CFR 81.434 - Washington.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 17 2010-07-01 2010-07-01 false Washington. 81.434 Section 81.434 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) DESIGNATION OF... Visibility Is an Important Value § 81.434 Washington. Area name Acreage Public Law establishing Federal...

  9. 21 CFR 808.97 - Washington.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EXEMPTIONS FROM FEDERAL PREEMPTION OF STATE AND LOCAL MEDICAL DEVICE REQUIREMENTS Listing of Specific State and Local Exemptions § 808.97 Washington. (a) The following Washington medical device requirement...

  10. 21 CFR 808.97 - Washington.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EXEMPTIONS FROM FEDERAL PREEMPTION OF STATE AND LOCAL MEDICAL DEVICE REQUIREMENTS Listing of Specific State and Local Exemptions § 808.97 Washington. (a) The following Washington medical device requirement...

  11. Frustration at Heart of Washington Rally

    ERIC Educational Resources Information Center

    Robelen, Erik W.

    2011-01-01

    Thousands of educators, parent activists, and others are expected to convene in the heat and humidity of Washington next month for a march protesting the current thrust of education policy in the United States, especially the strong emphasis on test-based accountability. Organizers of the Washington say U.S. policymakers are moving in the wrong…

  12. Reshaping the Image of Booker T. Washington

    ERIC Educational Resources Information Center

    Norrell, Robert J.

    2009-01-01

    Booker T. Washington, founder of the Tuskegee Institute and the recognized leader of American black people from 1895 until his death in 1915, has been viewed as an accommodationist to segregation, an African-American leader who traded black equality and voting rights for his own influence among white bigots. Washington rose to national fame with a…

  13. 33 CFR 117.1049 - Lake Washington.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Seattle Marine Operator, Station KOH, or through other marine wire or radiotelephone service. (c) The draw... DRAWBRIDGE OPERATION REGULATIONS Specific Requirements Washington § 117.1049 Lake Washington. The draw of the Evergreen Point Floating Bridge between Seattle and Bellevue shall operate as follows: (a) The draw...

  14. 21 CFR 808.97 - Washington.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES EXEMPTIONS FROM FEDERAL PREEMPTION OF STATE AND LOCAL MEDICAL DEVICE REQUIREMENTS Listing of Specific State and Local Exemptions § 808.97 Washington. (a) The following Washington medical device requirement...

  15. 75 FR 52048 - Washington Disaster #WA-00027

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-24

    ... ADMINISTRATION Washington Disaster WA-00027 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of WASHINGTON dated 08/17/2010. Incident: Lynnview Apartment Complex Fire. Incident Period: 08/09/2010. Effective Date:...

  16. 76 FR 44976 - Washington Disaster # WA-00031

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-07-27

    ... No: 2011-18896] SMALL BUSINESS ADMINISTRATION [Disaster Declaration 12693 and 12694] Washington Disaster WA-00031 AGENCY: U.S. Small Business Administration. ACTION: Notice. SUMMARY: This is a notice of an Administrative declaration of a disaster for the State of Washington dated 07/19/2011....

  17. Early Childhood Injury Deaths in Washington State.

    ERIC Educational Resources Information Center

    Starzyk, Patricia M.

    This paper discusses data on the deaths of children aged 1-4 years in Washington State. A two-fold approach was used in the analysis. First, Washington State death certificate data for 1979-85 were used to characterize the deaths and identify hazardous situations. Second, death certificates were linked to birth certificates of children born in…

  18. Aerospace Training. Washington's Community and Technical Colleges

    ERIC Educational Resources Information Center

    Washington State Board for Community and Technical Colleges, 2014

    2014-01-01

    Aerospace is an economic powerhouse that generates jobs and fuels our economy. Washington's community and technical colleges produce the world-class employees needed to keep it that way. With about 1,250 aerospace-related firms employing more than 94,000 workers, Washington has the largest concentration of aerospace expertise in the nation. To…

  19. Washington State Survey of Adolescent Health Behaviors.

    ERIC Educational Resources Information Center

    Washington State Dept. of Social and Health Services, Olympia.

    The 1992 Washington State Survey of Adolescent Health Behaviors (WSSAHB) was created to collect information regarding a variety of adolescent health behaviors among students in the state of Washington. It expands on two previous administrations of a student tobacco, alcohol, and other drug survey and includes questions about medical care, safety,…

  20. Corrections Education. Washington's Community and Technical Colleges

    ERIC Educational Resources Information Center

    Washington State Board for Community and Technical Colleges, 2015

    2015-01-01

    The Washington State Department of Corrections contracts with community colleges to provide basic education and job training at each of the state's 12 adult prisons so upon release, individuals are more likely to get jobs and less likely to return. Washington State community colleges build a bridge for offenders to successfully re-enter…